1 // SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause 2 /* 3 * Copyright(c) 2015 - 2020 Intel Corporation. 4 * Copyright(c) 2021 Cornelis Networks. 5 */ 6 7 /* 8 * This file contains all of the code that is specific to the HFI chip 9 */ 10 11 #include <linux/pci.h> 12 #include <linux/delay.h> 13 #include <linux/interrupt.h> 14 #include <linux/module.h> 15 16 #include "hfi.h" 17 #include "trace.h" 18 #include "mad.h" 19 #include "pio.h" 20 #include "sdma.h" 21 #include "eprom.h" 22 #include "efivar.h" 23 #include "platform.h" 24 #include "aspm.h" 25 #include "affinity.h" 26 #include "debugfs.h" 27 #include "fault.h" 28 #include "netdev.h" 29 30 uint num_vls = HFI1_MAX_VLS_SUPPORTED; 31 module_param(num_vls, uint, S_IRUGO); 32 MODULE_PARM_DESC(num_vls, "Set number of Virtual Lanes to use (1-8)"); 33 34 /* 35 * Default time to aggregate two 10K packets from the idle state 36 * (timer not running). The timer starts at the end of the first packet, 37 * so only the time for one 10K packet and header plus a bit extra is needed. 38 * 10 * 1024 + 64 header byte = 10304 byte 39 * 10304 byte / 12.5 GB/s = 824.32ns 40 */ 41 uint rcv_intr_timeout = (824 + 16); /* 16 is for coalescing interrupt */ 42 module_param(rcv_intr_timeout, uint, S_IRUGO); 43 MODULE_PARM_DESC(rcv_intr_timeout, "Receive interrupt mitigation timeout in ns"); 44 45 uint rcv_intr_count = 16; /* same as qib */ 46 module_param(rcv_intr_count, uint, S_IRUGO); 47 MODULE_PARM_DESC(rcv_intr_count, "Receive interrupt mitigation count"); 48 49 ushort link_crc_mask = SUPPORTED_CRCS; 50 module_param(link_crc_mask, ushort, S_IRUGO); 51 MODULE_PARM_DESC(link_crc_mask, "CRCs to use on the link"); 52 53 uint loopback; 54 module_param_named(loopback, loopback, uint, S_IRUGO); 55 MODULE_PARM_DESC(loopback, "Put into loopback mode (1 = serdes, 3 = external cable"); 56 57 /* Other driver tunables */ 58 uint rcv_intr_dynamic = 1; /* enable dynamic mode for rcv int mitigation*/ 59 static ushort crc_14b_sideband = 1; 60 static uint use_flr = 1; 61 uint quick_linkup; /* skip LNI */ 62 63 struct flag_table { 64 u64 flag; /* the flag */ 65 char *str; /* description string */ 66 u16 extra; /* extra information */ 67 u16 unused0; 68 u32 unused1; 69 }; 70 71 /* str must be a string constant */ 72 #define FLAG_ENTRY(str, extra, flag) {flag, str, extra} 73 #define FLAG_ENTRY0(str, flag) {flag, str, 0} 74 75 /* Send Error Consequences */ 76 #define SEC_WRITE_DROPPED 0x1 77 #define SEC_PACKET_DROPPED 0x2 78 #define SEC_SC_HALTED 0x4 /* per-context only */ 79 #define SEC_SPC_FREEZE 0x8 /* per-HFI only */ 80 81 #define DEFAULT_KRCVQS 2 82 #define MIN_KERNEL_KCTXTS 2 83 #define FIRST_KERNEL_KCTXT 1 84 85 /* 86 * RSM instance allocation 87 * 0 - User Fecn Handling 88 * 1 - Vnic 89 * 2 - AIP 90 * 3 - Verbs 91 */ 92 #define RSM_INS_FECN 0 93 #define RSM_INS_VNIC 1 94 #define RSM_INS_AIP 2 95 #define RSM_INS_VERBS 3 96 97 /* Bit offset into the GUID which carries HFI id information */ 98 #define GUID_HFI_INDEX_SHIFT 39 99 100 /* extract the emulation revision */ 101 #define emulator_rev(dd) ((dd)->irev >> 8) 102 /* parallel and serial emulation versions are 3 and 4 respectively */ 103 #define is_emulator_p(dd) ((((dd)->irev) & 0xf) == 3) 104 #define is_emulator_s(dd) ((((dd)->irev) & 0xf) == 4) 105 106 /* RSM fields for Verbs */ 107 /* packet type */ 108 #define IB_PACKET_TYPE 2ull 109 #define QW_SHIFT 6ull 110 /* QPN[7..1] */ 111 #define QPN_WIDTH 7ull 112 113 /* LRH.BTH: QW 0, OFFSET 48 - for match */ 114 #define LRH_BTH_QW 0ull 115 #define LRH_BTH_BIT_OFFSET 48ull 116 #define LRH_BTH_OFFSET(off) ((LRH_BTH_QW << QW_SHIFT) | (off)) 117 #define LRH_BTH_MATCH_OFFSET LRH_BTH_OFFSET(LRH_BTH_BIT_OFFSET) 118 #define LRH_BTH_SELECT 119 #define LRH_BTH_MASK 3ull 120 #define LRH_BTH_VALUE 2ull 121 122 /* LRH.SC[3..0] QW 0, OFFSET 56 - for match */ 123 #define LRH_SC_QW 0ull 124 #define LRH_SC_BIT_OFFSET 56ull 125 #define LRH_SC_OFFSET(off) ((LRH_SC_QW << QW_SHIFT) | (off)) 126 #define LRH_SC_MATCH_OFFSET LRH_SC_OFFSET(LRH_SC_BIT_OFFSET) 127 #define LRH_SC_MASK 128ull 128 #define LRH_SC_VALUE 0ull 129 130 /* SC[n..0] QW 0, OFFSET 60 - for select */ 131 #define LRH_SC_SELECT_OFFSET ((LRH_SC_QW << QW_SHIFT) | (60ull)) 132 133 /* QPN[m+n:1] QW 1, OFFSET 1 */ 134 #define QPN_SELECT_OFFSET ((1ull << QW_SHIFT) | (1ull)) 135 136 /* RSM fields for AIP */ 137 /* LRH.BTH above is reused for this rule */ 138 139 /* BTH.DESTQP: QW 1, OFFSET 16 for match */ 140 #define BTH_DESTQP_QW 1ull 141 #define BTH_DESTQP_BIT_OFFSET 16ull 142 #define BTH_DESTQP_OFFSET(off) ((BTH_DESTQP_QW << QW_SHIFT) | (off)) 143 #define BTH_DESTQP_MATCH_OFFSET BTH_DESTQP_OFFSET(BTH_DESTQP_BIT_OFFSET) 144 #define BTH_DESTQP_MASK 0xFFull 145 #define BTH_DESTQP_VALUE 0x81ull 146 147 /* DETH.SQPN: QW 1 Offset 56 for select */ 148 /* We use 8 most significant Soure QPN bits as entropy fpr AIP */ 149 #define DETH_AIP_SQPN_QW 3ull 150 #define DETH_AIP_SQPN_BIT_OFFSET 56ull 151 #define DETH_AIP_SQPN_OFFSET(off) ((DETH_AIP_SQPN_QW << QW_SHIFT) | (off)) 152 #define DETH_AIP_SQPN_SELECT_OFFSET \ 153 DETH_AIP_SQPN_OFFSET(DETH_AIP_SQPN_BIT_OFFSET) 154 155 /* RSM fields for Vnic */ 156 /* L2_TYPE: QW 0, OFFSET 61 - for match */ 157 #define L2_TYPE_QW 0ull 158 #define L2_TYPE_BIT_OFFSET 61ull 159 #define L2_TYPE_OFFSET(off) ((L2_TYPE_QW << QW_SHIFT) | (off)) 160 #define L2_TYPE_MATCH_OFFSET L2_TYPE_OFFSET(L2_TYPE_BIT_OFFSET) 161 #define L2_TYPE_MASK 3ull 162 #define L2_16B_VALUE 2ull 163 164 /* L4_TYPE QW 1, OFFSET 0 - for match */ 165 #define L4_TYPE_QW 1ull 166 #define L4_TYPE_BIT_OFFSET 0ull 167 #define L4_TYPE_OFFSET(off) ((L4_TYPE_QW << QW_SHIFT) | (off)) 168 #define L4_TYPE_MATCH_OFFSET L4_TYPE_OFFSET(L4_TYPE_BIT_OFFSET) 169 #define L4_16B_TYPE_MASK 0xFFull 170 #define L4_16B_ETH_VALUE 0x78ull 171 172 /* 16B VESWID - for select */ 173 #define L4_16B_HDR_VESWID_OFFSET ((2 << QW_SHIFT) | (16ull)) 174 /* 16B ENTROPY - for select */ 175 #define L2_16B_ENTROPY_OFFSET ((1 << QW_SHIFT) | (32ull)) 176 177 /* defines to build power on SC2VL table */ 178 #define SC2VL_VAL( \ 179 num, \ 180 sc0, sc0val, \ 181 sc1, sc1val, \ 182 sc2, sc2val, \ 183 sc3, sc3val, \ 184 sc4, sc4val, \ 185 sc5, sc5val, \ 186 sc6, sc6val, \ 187 sc7, sc7val) \ 188 ( \ 189 ((u64)(sc0val) << SEND_SC2VLT##num##_SC##sc0##_SHIFT) | \ 190 ((u64)(sc1val) << SEND_SC2VLT##num##_SC##sc1##_SHIFT) | \ 191 ((u64)(sc2val) << SEND_SC2VLT##num##_SC##sc2##_SHIFT) | \ 192 ((u64)(sc3val) << SEND_SC2VLT##num##_SC##sc3##_SHIFT) | \ 193 ((u64)(sc4val) << SEND_SC2VLT##num##_SC##sc4##_SHIFT) | \ 194 ((u64)(sc5val) << SEND_SC2VLT##num##_SC##sc5##_SHIFT) | \ 195 ((u64)(sc6val) << SEND_SC2VLT##num##_SC##sc6##_SHIFT) | \ 196 ((u64)(sc7val) << SEND_SC2VLT##num##_SC##sc7##_SHIFT) \ 197 ) 198 199 #define DC_SC_VL_VAL( \ 200 range, \ 201 e0, e0val, \ 202 e1, e1val, \ 203 e2, e2val, \ 204 e3, e3val, \ 205 e4, e4val, \ 206 e5, e5val, \ 207 e6, e6val, \ 208 e7, e7val, \ 209 e8, e8val, \ 210 e9, e9val, \ 211 e10, e10val, \ 212 e11, e11val, \ 213 e12, e12val, \ 214 e13, e13val, \ 215 e14, e14val, \ 216 e15, e15val) \ 217 ( \ 218 ((u64)(e0val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e0##_SHIFT) | \ 219 ((u64)(e1val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e1##_SHIFT) | \ 220 ((u64)(e2val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e2##_SHIFT) | \ 221 ((u64)(e3val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e3##_SHIFT) | \ 222 ((u64)(e4val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e4##_SHIFT) | \ 223 ((u64)(e5val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e5##_SHIFT) | \ 224 ((u64)(e6val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e6##_SHIFT) | \ 225 ((u64)(e7val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e7##_SHIFT) | \ 226 ((u64)(e8val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e8##_SHIFT) | \ 227 ((u64)(e9val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e9##_SHIFT) | \ 228 ((u64)(e10val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e10##_SHIFT) | \ 229 ((u64)(e11val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e11##_SHIFT) | \ 230 ((u64)(e12val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e12##_SHIFT) | \ 231 ((u64)(e13val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e13##_SHIFT) | \ 232 ((u64)(e14val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e14##_SHIFT) | \ 233 ((u64)(e15val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e15##_SHIFT) \ 234 ) 235 236 /* all CceStatus sub-block freeze bits */ 237 #define ALL_FROZE (CCE_STATUS_SDMA_FROZE_SMASK \ 238 | CCE_STATUS_RXE_FROZE_SMASK \ 239 | CCE_STATUS_TXE_FROZE_SMASK \ 240 | CCE_STATUS_TXE_PIO_FROZE_SMASK) 241 /* all CceStatus sub-block TXE pause bits */ 242 #define ALL_TXE_PAUSE (CCE_STATUS_TXE_PIO_PAUSED_SMASK \ 243 | CCE_STATUS_TXE_PAUSED_SMASK \ 244 | CCE_STATUS_SDMA_PAUSED_SMASK) 245 /* all CceStatus sub-block RXE pause bits */ 246 #define ALL_RXE_PAUSE CCE_STATUS_RXE_PAUSED_SMASK 247 248 #define CNTR_MAX 0xFFFFFFFFFFFFFFFFULL 249 #define CNTR_32BIT_MAX 0x00000000FFFFFFFF 250 251 /* 252 * CCE Error flags. 253 */ 254 static struct flag_table cce_err_status_flags[] = { 255 /* 0*/ FLAG_ENTRY0("CceCsrParityErr", 256 CCE_ERR_STATUS_CCE_CSR_PARITY_ERR_SMASK), 257 /* 1*/ FLAG_ENTRY0("CceCsrReadBadAddrErr", 258 CCE_ERR_STATUS_CCE_CSR_READ_BAD_ADDR_ERR_SMASK), 259 /* 2*/ FLAG_ENTRY0("CceCsrWriteBadAddrErr", 260 CCE_ERR_STATUS_CCE_CSR_WRITE_BAD_ADDR_ERR_SMASK), 261 /* 3*/ FLAG_ENTRY0("CceTrgtAsyncFifoParityErr", 262 CCE_ERR_STATUS_CCE_TRGT_ASYNC_FIFO_PARITY_ERR_SMASK), 263 /* 4*/ FLAG_ENTRY0("CceTrgtAccessErr", 264 CCE_ERR_STATUS_CCE_TRGT_ACCESS_ERR_SMASK), 265 /* 5*/ FLAG_ENTRY0("CceRspdDataParityErr", 266 CCE_ERR_STATUS_CCE_RSPD_DATA_PARITY_ERR_SMASK), 267 /* 6*/ FLAG_ENTRY0("CceCli0AsyncFifoParityErr", 268 CCE_ERR_STATUS_CCE_CLI0_ASYNC_FIFO_PARITY_ERR_SMASK), 269 /* 7*/ FLAG_ENTRY0("CceCsrCfgBusParityErr", 270 CCE_ERR_STATUS_CCE_CSR_CFG_BUS_PARITY_ERR_SMASK), 271 /* 8*/ FLAG_ENTRY0("CceCli2AsyncFifoParityErr", 272 CCE_ERR_STATUS_CCE_CLI2_ASYNC_FIFO_PARITY_ERR_SMASK), 273 /* 9*/ FLAG_ENTRY0("CceCli1AsyncFifoPioCrdtParityErr", 274 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_PIO_CRDT_PARITY_ERR_SMASK), 275 /*10*/ FLAG_ENTRY0("CceCli1AsyncFifoPioCrdtParityErr", 276 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_SDMA_HD_PARITY_ERR_SMASK), 277 /*11*/ FLAG_ENTRY0("CceCli1AsyncFifoRxdmaParityError", 278 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_RXDMA_PARITY_ERROR_SMASK), 279 /*12*/ FLAG_ENTRY0("CceCli1AsyncFifoDbgParityError", 280 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_DBG_PARITY_ERROR_SMASK), 281 /*13*/ FLAG_ENTRY0("PcicRetryMemCorErr", 282 CCE_ERR_STATUS_PCIC_RETRY_MEM_COR_ERR_SMASK), 283 /*14*/ FLAG_ENTRY0("PcicRetryMemCorErr", 284 CCE_ERR_STATUS_PCIC_RETRY_SOT_MEM_COR_ERR_SMASK), 285 /*15*/ FLAG_ENTRY0("PcicPostHdQCorErr", 286 CCE_ERR_STATUS_PCIC_POST_HD_QCOR_ERR_SMASK), 287 /*16*/ FLAG_ENTRY0("PcicPostHdQCorErr", 288 CCE_ERR_STATUS_PCIC_POST_DAT_QCOR_ERR_SMASK), 289 /*17*/ FLAG_ENTRY0("PcicPostHdQCorErr", 290 CCE_ERR_STATUS_PCIC_CPL_HD_QCOR_ERR_SMASK), 291 /*18*/ FLAG_ENTRY0("PcicCplDatQCorErr", 292 CCE_ERR_STATUS_PCIC_CPL_DAT_QCOR_ERR_SMASK), 293 /*19*/ FLAG_ENTRY0("PcicNPostHQParityErr", 294 CCE_ERR_STATUS_PCIC_NPOST_HQ_PARITY_ERR_SMASK), 295 /*20*/ FLAG_ENTRY0("PcicNPostDatQParityErr", 296 CCE_ERR_STATUS_PCIC_NPOST_DAT_QPARITY_ERR_SMASK), 297 /*21*/ FLAG_ENTRY0("PcicRetryMemUncErr", 298 CCE_ERR_STATUS_PCIC_RETRY_MEM_UNC_ERR_SMASK), 299 /*22*/ FLAG_ENTRY0("PcicRetrySotMemUncErr", 300 CCE_ERR_STATUS_PCIC_RETRY_SOT_MEM_UNC_ERR_SMASK), 301 /*23*/ FLAG_ENTRY0("PcicPostHdQUncErr", 302 CCE_ERR_STATUS_PCIC_POST_HD_QUNC_ERR_SMASK), 303 /*24*/ FLAG_ENTRY0("PcicPostDatQUncErr", 304 CCE_ERR_STATUS_PCIC_POST_DAT_QUNC_ERR_SMASK), 305 /*25*/ FLAG_ENTRY0("PcicCplHdQUncErr", 306 CCE_ERR_STATUS_PCIC_CPL_HD_QUNC_ERR_SMASK), 307 /*26*/ FLAG_ENTRY0("PcicCplDatQUncErr", 308 CCE_ERR_STATUS_PCIC_CPL_DAT_QUNC_ERR_SMASK), 309 /*27*/ FLAG_ENTRY0("PcicTransmitFrontParityErr", 310 CCE_ERR_STATUS_PCIC_TRANSMIT_FRONT_PARITY_ERR_SMASK), 311 /*28*/ FLAG_ENTRY0("PcicTransmitBackParityErr", 312 CCE_ERR_STATUS_PCIC_TRANSMIT_BACK_PARITY_ERR_SMASK), 313 /*29*/ FLAG_ENTRY0("PcicReceiveParityErr", 314 CCE_ERR_STATUS_PCIC_RECEIVE_PARITY_ERR_SMASK), 315 /*30*/ FLAG_ENTRY0("CceTrgtCplTimeoutErr", 316 CCE_ERR_STATUS_CCE_TRGT_CPL_TIMEOUT_ERR_SMASK), 317 /*31*/ FLAG_ENTRY0("LATriggered", 318 CCE_ERR_STATUS_LA_TRIGGERED_SMASK), 319 /*32*/ FLAG_ENTRY0("CceSegReadBadAddrErr", 320 CCE_ERR_STATUS_CCE_SEG_READ_BAD_ADDR_ERR_SMASK), 321 /*33*/ FLAG_ENTRY0("CceSegWriteBadAddrErr", 322 CCE_ERR_STATUS_CCE_SEG_WRITE_BAD_ADDR_ERR_SMASK), 323 /*34*/ FLAG_ENTRY0("CceRcplAsyncFifoParityErr", 324 CCE_ERR_STATUS_CCE_RCPL_ASYNC_FIFO_PARITY_ERR_SMASK), 325 /*35*/ FLAG_ENTRY0("CceRxdmaConvFifoParityErr", 326 CCE_ERR_STATUS_CCE_RXDMA_CONV_FIFO_PARITY_ERR_SMASK), 327 /*36*/ FLAG_ENTRY0("CceMsixTableCorErr", 328 CCE_ERR_STATUS_CCE_MSIX_TABLE_COR_ERR_SMASK), 329 /*37*/ FLAG_ENTRY0("CceMsixTableUncErr", 330 CCE_ERR_STATUS_CCE_MSIX_TABLE_UNC_ERR_SMASK), 331 /*38*/ FLAG_ENTRY0("CceIntMapCorErr", 332 CCE_ERR_STATUS_CCE_INT_MAP_COR_ERR_SMASK), 333 /*39*/ FLAG_ENTRY0("CceIntMapUncErr", 334 CCE_ERR_STATUS_CCE_INT_MAP_UNC_ERR_SMASK), 335 /*40*/ FLAG_ENTRY0("CceMsixCsrParityErr", 336 CCE_ERR_STATUS_CCE_MSIX_CSR_PARITY_ERR_SMASK), 337 /*41-63 reserved*/ 338 }; 339 340 /* 341 * Misc Error flags 342 */ 343 #define MES(text) MISC_ERR_STATUS_MISC_##text##_ERR_SMASK 344 static struct flag_table misc_err_status_flags[] = { 345 /* 0*/ FLAG_ENTRY0("CSR_PARITY", MES(CSR_PARITY)), 346 /* 1*/ FLAG_ENTRY0("CSR_READ_BAD_ADDR", MES(CSR_READ_BAD_ADDR)), 347 /* 2*/ FLAG_ENTRY0("CSR_WRITE_BAD_ADDR", MES(CSR_WRITE_BAD_ADDR)), 348 /* 3*/ FLAG_ENTRY0("SBUS_WRITE_FAILED", MES(SBUS_WRITE_FAILED)), 349 /* 4*/ FLAG_ENTRY0("KEY_MISMATCH", MES(KEY_MISMATCH)), 350 /* 5*/ FLAG_ENTRY0("FW_AUTH_FAILED", MES(FW_AUTH_FAILED)), 351 /* 6*/ FLAG_ENTRY0("EFUSE_CSR_PARITY", MES(EFUSE_CSR_PARITY)), 352 /* 7*/ FLAG_ENTRY0("EFUSE_READ_BAD_ADDR", MES(EFUSE_READ_BAD_ADDR)), 353 /* 8*/ FLAG_ENTRY0("EFUSE_WRITE", MES(EFUSE_WRITE)), 354 /* 9*/ FLAG_ENTRY0("EFUSE_DONE_PARITY", MES(EFUSE_DONE_PARITY)), 355 /*10*/ FLAG_ENTRY0("INVALID_EEP_CMD", MES(INVALID_EEP_CMD)), 356 /*11*/ FLAG_ENTRY0("MBIST_FAIL", MES(MBIST_FAIL)), 357 /*12*/ FLAG_ENTRY0("PLL_LOCK_FAIL", MES(PLL_LOCK_FAIL)) 358 }; 359 360 /* 361 * TXE PIO Error flags and consequences 362 */ 363 static struct flag_table pio_err_status_flags[] = { 364 /* 0*/ FLAG_ENTRY("PioWriteBadCtxt", 365 SEC_WRITE_DROPPED, 366 SEND_PIO_ERR_STATUS_PIO_WRITE_BAD_CTXT_ERR_SMASK), 367 /* 1*/ FLAG_ENTRY("PioWriteAddrParity", 368 SEC_SPC_FREEZE, 369 SEND_PIO_ERR_STATUS_PIO_WRITE_ADDR_PARITY_ERR_SMASK), 370 /* 2*/ FLAG_ENTRY("PioCsrParity", 371 SEC_SPC_FREEZE, 372 SEND_PIO_ERR_STATUS_PIO_CSR_PARITY_ERR_SMASK), 373 /* 3*/ FLAG_ENTRY("PioSbMemFifo0", 374 SEC_SPC_FREEZE, 375 SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO0_ERR_SMASK), 376 /* 4*/ FLAG_ENTRY("PioSbMemFifo1", 377 SEC_SPC_FREEZE, 378 SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO1_ERR_SMASK), 379 /* 5*/ FLAG_ENTRY("PioPccFifoParity", 380 SEC_SPC_FREEZE, 381 SEND_PIO_ERR_STATUS_PIO_PCC_FIFO_PARITY_ERR_SMASK), 382 /* 6*/ FLAG_ENTRY("PioPecFifoParity", 383 SEC_SPC_FREEZE, 384 SEND_PIO_ERR_STATUS_PIO_PEC_FIFO_PARITY_ERR_SMASK), 385 /* 7*/ FLAG_ENTRY("PioSbrdctlCrrelParity", 386 SEC_SPC_FREEZE, 387 SEND_PIO_ERR_STATUS_PIO_SBRDCTL_CRREL_PARITY_ERR_SMASK), 388 /* 8*/ FLAG_ENTRY("PioSbrdctrlCrrelFifoParity", 389 SEC_SPC_FREEZE, 390 SEND_PIO_ERR_STATUS_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR_SMASK), 391 /* 9*/ FLAG_ENTRY("PioPktEvictFifoParityErr", 392 SEC_SPC_FREEZE, 393 SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_FIFO_PARITY_ERR_SMASK), 394 /*10*/ FLAG_ENTRY("PioSmPktResetParity", 395 SEC_SPC_FREEZE, 396 SEND_PIO_ERR_STATUS_PIO_SM_PKT_RESET_PARITY_ERR_SMASK), 397 /*11*/ FLAG_ENTRY("PioVlLenMemBank0Unc", 398 SEC_SPC_FREEZE, 399 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK0_UNC_ERR_SMASK), 400 /*12*/ FLAG_ENTRY("PioVlLenMemBank1Unc", 401 SEC_SPC_FREEZE, 402 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK1_UNC_ERR_SMASK), 403 /*13*/ FLAG_ENTRY("PioVlLenMemBank0Cor", 404 0, 405 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK0_COR_ERR_SMASK), 406 /*14*/ FLAG_ENTRY("PioVlLenMemBank1Cor", 407 0, 408 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK1_COR_ERR_SMASK), 409 /*15*/ FLAG_ENTRY("PioCreditRetFifoParity", 410 SEC_SPC_FREEZE, 411 SEND_PIO_ERR_STATUS_PIO_CREDIT_RET_FIFO_PARITY_ERR_SMASK), 412 /*16*/ FLAG_ENTRY("PioPpmcPblFifo", 413 SEC_SPC_FREEZE, 414 SEND_PIO_ERR_STATUS_PIO_PPMC_PBL_FIFO_ERR_SMASK), 415 /*17*/ FLAG_ENTRY("PioInitSmIn", 416 0, 417 SEND_PIO_ERR_STATUS_PIO_INIT_SM_IN_ERR_SMASK), 418 /*18*/ FLAG_ENTRY("PioPktEvictSmOrArbSm", 419 SEC_SPC_FREEZE, 420 SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_SM_OR_ARB_SM_ERR_SMASK), 421 /*19*/ FLAG_ENTRY("PioHostAddrMemUnc", 422 SEC_SPC_FREEZE, 423 SEND_PIO_ERR_STATUS_PIO_HOST_ADDR_MEM_UNC_ERR_SMASK), 424 /*20*/ FLAG_ENTRY("PioHostAddrMemCor", 425 0, 426 SEND_PIO_ERR_STATUS_PIO_HOST_ADDR_MEM_COR_ERR_SMASK), 427 /*21*/ FLAG_ENTRY("PioWriteDataParity", 428 SEC_SPC_FREEZE, 429 SEND_PIO_ERR_STATUS_PIO_WRITE_DATA_PARITY_ERR_SMASK), 430 /*22*/ FLAG_ENTRY("PioStateMachine", 431 SEC_SPC_FREEZE, 432 SEND_PIO_ERR_STATUS_PIO_STATE_MACHINE_ERR_SMASK), 433 /*23*/ FLAG_ENTRY("PioWriteQwValidParity", 434 SEC_WRITE_DROPPED | SEC_SPC_FREEZE, 435 SEND_PIO_ERR_STATUS_PIO_WRITE_QW_VALID_PARITY_ERR_SMASK), 436 /*24*/ FLAG_ENTRY("PioBlockQwCountParity", 437 SEC_WRITE_DROPPED | SEC_SPC_FREEZE, 438 SEND_PIO_ERR_STATUS_PIO_BLOCK_QW_COUNT_PARITY_ERR_SMASK), 439 /*25*/ FLAG_ENTRY("PioVlfVlLenParity", 440 SEC_SPC_FREEZE, 441 SEND_PIO_ERR_STATUS_PIO_VLF_VL_LEN_PARITY_ERR_SMASK), 442 /*26*/ FLAG_ENTRY("PioVlfSopParity", 443 SEC_SPC_FREEZE, 444 SEND_PIO_ERR_STATUS_PIO_VLF_SOP_PARITY_ERR_SMASK), 445 /*27*/ FLAG_ENTRY("PioVlFifoParity", 446 SEC_SPC_FREEZE, 447 SEND_PIO_ERR_STATUS_PIO_VL_FIFO_PARITY_ERR_SMASK), 448 /*28*/ FLAG_ENTRY("PioPpmcBqcMemParity", 449 SEC_SPC_FREEZE, 450 SEND_PIO_ERR_STATUS_PIO_PPMC_BQC_MEM_PARITY_ERR_SMASK), 451 /*29*/ FLAG_ENTRY("PioPpmcSopLen", 452 SEC_SPC_FREEZE, 453 SEND_PIO_ERR_STATUS_PIO_PPMC_SOP_LEN_ERR_SMASK), 454 /*30-31 reserved*/ 455 /*32*/ FLAG_ENTRY("PioCurrentFreeCntParity", 456 SEC_SPC_FREEZE, 457 SEND_PIO_ERR_STATUS_PIO_CURRENT_FREE_CNT_PARITY_ERR_SMASK), 458 /*33*/ FLAG_ENTRY("PioLastReturnedCntParity", 459 SEC_SPC_FREEZE, 460 SEND_PIO_ERR_STATUS_PIO_LAST_RETURNED_CNT_PARITY_ERR_SMASK), 461 /*34*/ FLAG_ENTRY("PioPccSopHeadParity", 462 SEC_SPC_FREEZE, 463 SEND_PIO_ERR_STATUS_PIO_PCC_SOP_HEAD_PARITY_ERR_SMASK), 464 /*35*/ FLAG_ENTRY("PioPecSopHeadParityErr", 465 SEC_SPC_FREEZE, 466 SEND_PIO_ERR_STATUS_PIO_PEC_SOP_HEAD_PARITY_ERR_SMASK), 467 /*36-63 reserved*/ 468 }; 469 470 /* TXE PIO errors that cause an SPC freeze */ 471 #define ALL_PIO_FREEZE_ERR \ 472 (SEND_PIO_ERR_STATUS_PIO_WRITE_ADDR_PARITY_ERR_SMASK \ 473 | SEND_PIO_ERR_STATUS_PIO_CSR_PARITY_ERR_SMASK \ 474 | SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO0_ERR_SMASK \ 475 | SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO1_ERR_SMASK \ 476 | SEND_PIO_ERR_STATUS_PIO_PCC_FIFO_PARITY_ERR_SMASK \ 477 | SEND_PIO_ERR_STATUS_PIO_PEC_FIFO_PARITY_ERR_SMASK \ 478 | SEND_PIO_ERR_STATUS_PIO_SBRDCTL_CRREL_PARITY_ERR_SMASK \ 479 | SEND_PIO_ERR_STATUS_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR_SMASK \ 480 | SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_FIFO_PARITY_ERR_SMASK \ 481 | SEND_PIO_ERR_STATUS_PIO_SM_PKT_RESET_PARITY_ERR_SMASK \ 482 | SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK0_UNC_ERR_SMASK \ 483 | SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK1_UNC_ERR_SMASK \ 484 | SEND_PIO_ERR_STATUS_PIO_CREDIT_RET_FIFO_PARITY_ERR_SMASK \ 485 | SEND_PIO_ERR_STATUS_PIO_PPMC_PBL_FIFO_ERR_SMASK \ 486 | SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_SM_OR_ARB_SM_ERR_SMASK \ 487 | SEND_PIO_ERR_STATUS_PIO_HOST_ADDR_MEM_UNC_ERR_SMASK \ 488 | SEND_PIO_ERR_STATUS_PIO_WRITE_DATA_PARITY_ERR_SMASK \ 489 | SEND_PIO_ERR_STATUS_PIO_STATE_MACHINE_ERR_SMASK \ 490 | SEND_PIO_ERR_STATUS_PIO_WRITE_QW_VALID_PARITY_ERR_SMASK \ 491 | SEND_PIO_ERR_STATUS_PIO_BLOCK_QW_COUNT_PARITY_ERR_SMASK \ 492 | SEND_PIO_ERR_STATUS_PIO_VLF_VL_LEN_PARITY_ERR_SMASK \ 493 | SEND_PIO_ERR_STATUS_PIO_VLF_SOP_PARITY_ERR_SMASK \ 494 | SEND_PIO_ERR_STATUS_PIO_VL_FIFO_PARITY_ERR_SMASK \ 495 | SEND_PIO_ERR_STATUS_PIO_PPMC_BQC_MEM_PARITY_ERR_SMASK \ 496 | SEND_PIO_ERR_STATUS_PIO_PPMC_SOP_LEN_ERR_SMASK \ 497 | SEND_PIO_ERR_STATUS_PIO_CURRENT_FREE_CNT_PARITY_ERR_SMASK \ 498 | SEND_PIO_ERR_STATUS_PIO_LAST_RETURNED_CNT_PARITY_ERR_SMASK \ 499 | SEND_PIO_ERR_STATUS_PIO_PCC_SOP_HEAD_PARITY_ERR_SMASK \ 500 | SEND_PIO_ERR_STATUS_PIO_PEC_SOP_HEAD_PARITY_ERR_SMASK) 501 502 /* 503 * TXE SDMA Error flags 504 */ 505 static struct flag_table sdma_err_status_flags[] = { 506 /* 0*/ FLAG_ENTRY0("SDmaRpyTagErr", 507 SEND_DMA_ERR_STATUS_SDMA_RPY_TAG_ERR_SMASK), 508 /* 1*/ FLAG_ENTRY0("SDmaCsrParityErr", 509 SEND_DMA_ERR_STATUS_SDMA_CSR_PARITY_ERR_SMASK), 510 /* 2*/ FLAG_ENTRY0("SDmaPcieReqTrackingUncErr", 511 SEND_DMA_ERR_STATUS_SDMA_PCIE_REQ_TRACKING_UNC_ERR_SMASK), 512 /* 3*/ FLAG_ENTRY0("SDmaPcieReqTrackingCorErr", 513 SEND_DMA_ERR_STATUS_SDMA_PCIE_REQ_TRACKING_COR_ERR_SMASK), 514 /*04-63 reserved*/ 515 }; 516 517 /* TXE SDMA errors that cause an SPC freeze */ 518 #define ALL_SDMA_FREEZE_ERR \ 519 (SEND_DMA_ERR_STATUS_SDMA_RPY_TAG_ERR_SMASK \ 520 | SEND_DMA_ERR_STATUS_SDMA_CSR_PARITY_ERR_SMASK \ 521 | SEND_DMA_ERR_STATUS_SDMA_PCIE_REQ_TRACKING_UNC_ERR_SMASK) 522 523 /* SendEgressErrInfo bits that correspond to a PortXmitDiscard counter */ 524 #define PORT_DISCARD_EGRESS_ERRS \ 525 (SEND_EGRESS_ERR_INFO_TOO_LONG_IB_PACKET_ERR_SMASK \ 526 | SEND_EGRESS_ERR_INFO_VL_MAPPING_ERR_SMASK \ 527 | SEND_EGRESS_ERR_INFO_VL_ERR_SMASK) 528 529 /* 530 * TXE Egress Error flags 531 */ 532 #define SEES(text) SEND_EGRESS_ERR_STATUS_##text##_ERR_SMASK 533 static struct flag_table egress_err_status_flags[] = { 534 /* 0*/ FLAG_ENTRY0("TxPktIntegrityMemCorErr", SEES(TX_PKT_INTEGRITY_MEM_COR)), 535 /* 1*/ FLAG_ENTRY0("TxPktIntegrityMemUncErr", SEES(TX_PKT_INTEGRITY_MEM_UNC)), 536 /* 2 reserved */ 537 /* 3*/ FLAG_ENTRY0("TxEgressFifoUnderrunOrParityErr", 538 SEES(TX_EGRESS_FIFO_UNDERRUN_OR_PARITY)), 539 /* 4*/ FLAG_ENTRY0("TxLinkdownErr", SEES(TX_LINKDOWN)), 540 /* 5*/ FLAG_ENTRY0("TxIncorrectLinkStateErr", SEES(TX_INCORRECT_LINK_STATE)), 541 /* 6 reserved */ 542 /* 7*/ FLAG_ENTRY0("TxPioLaunchIntfParityErr", 543 SEES(TX_PIO_LAUNCH_INTF_PARITY)), 544 /* 8*/ FLAG_ENTRY0("TxSdmaLaunchIntfParityErr", 545 SEES(TX_SDMA_LAUNCH_INTF_PARITY)), 546 /* 9-10 reserved */ 547 /*11*/ FLAG_ENTRY0("TxSbrdCtlStateMachineParityErr", 548 SEES(TX_SBRD_CTL_STATE_MACHINE_PARITY)), 549 /*12*/ FLAG_ENTRY0("TxIllegalVLErr", SEES(TX_ILLEGAL_VL)), 550 /*13*/ FLAG_ENTRY0("TxLaunchCsrParityErr", SEES(TX_LAUNCH_CSR_PARITY)), 551 /*14*/ FLAG_ENTRY0("TxSbrdCtlCsrParityErr", SEES(TX_SBRD_CTL_CSR_PARITY)), 552 /*15*/ FLAG_ENTRY0("TxConfigParityErr", SEES(TX_CONFIG_PARITY)), 553 /*16*/ FLAG_ENTRY0("TxSdma0DisallowedPacketErr", 554 SEES(TX_SDMA0_DISALLOWED_PACKET)), 555 /*17*/ FLAG_ENTRY0("TxSdma1DisallowedPacketErr", 556 SEES(TX_SDMA1_DISALLOWED_PACKET)), 557 /*18*/ FLAG_ENTRY0("TxSdma2DisallowedPacketErr", 558 SEES(TX_SDMA2_DISALLOWED_PACKET)), 559 /*19*/ FLAG_ENTRY0("TxSdma3DisallowedPacketErr", 560 SEES(TX_SDMA3_DISALLOWED_PACKET)), 561 /*20*/ FLAG_ENTRY0("TxSdma4DisallowedPacketErr", 562 SEES(TX_SDMA4_DISALLOWED_PACKET)), 563 /*21*/ FLAG_ENTRY0("TxSdma5DisallowedPacketErr", 564 SEES(TX_SDMA5_DISALLOWED_PACKET)), 565 /*22*/ FLAG_ENTRY0("TxSdma6DisallowedPacketErr", 566 SEES(TX_SDMA6_DISALLOWED_PACKET)), 567 /*23*/ FLAG_ENTRY0("TxSdma7DisallowedPacketErr", 568 SEES(TX_SDMA7_DISALLOWED_PACKET)), 569 /*24*/ FLAG_ENTRY0("TxSdma8DisallowedPacketErr", 570 SEES(TX_SDMA8_DISALLOWED_PACKET)), 571 /*25*/ FLAG_ENTRY0("TxSdma9DisallowedPacketErr", 572 SEES(TX_SDMA9_DISALLOWED_PACKET)), 573 /*26*/ FLAG_ENTRY0("TxSdma10DisallowedPacketErr", 574 SEES(TX_SDMA10_DISALLOWED_PACKET)), 575 /*27*/ FLAG_ENTRY0("TxSdma11DisallowedPacketErr", 576 SEES(TX_SDMA11_DISALLOWED_PACKET)), 577 /*28*/ FLAG_ENTRY0("TxSdma12DisallowedPacketErr", 578 SEES(TX_SDMA12_DISALLOWED_PACKET)), 579 /*29*/ FLAG_ENTRY0("TxSdma13DisallowedPacketErr", 580 SEES(TX_SDMA13_DISALLOWED_PACKET)), 581 /*30*/ FLAG_ENTRY0("TxSdma14DisallowedPacketErr", 582 SEES(TX_SDMA14_DISALLOWED_PACKET)), 583 /*31*/ FLAG_ENTRY0("TxSdma15DisallowedPacketErr", 584 SEES(TX_SDMA15_DISALLOWED_PACKET)), 585 /*32*/ FLAG_ENTRY0("TxLaunchFifo0UncOrParityErr", 586 SEES(TX_LAUNCH_FIFO0_UNC_OR_PARITY)), 587 /*33*/ FLAG_ENTRY0("TxLaunchFifo1UncOrParityErr", 588 SEES(TX_LAUNCH_FIFO1_UNC_OR_PARITY)), 589 /*34*/ FLAG_ENTRY0("TxLaunchFifo2UncOrParityErr", 590 SEES(TX_LAUNCH_FIFO2_UNC_OR_PARITY)), 591 /*35*/ FLAG_ENTRY0("TxLaunchFifo3UncOrParityErr", 592 SEES(TX_LAUNCH_FIFO3_UNC_OR_PARITY)), 593 /*36*/ FLAG_ENTRY0("TxLaunchFifo4UncOrParityErr", 594 SEES(TX_LAUNCH_FIFO4_UNC_OR_PARITY)), 595 /*37*/ FLAG_ENTRY0("TxLaunchFifo5UncOrParityErr", 596 SEES(TX_LAUNCH_FIFO5_UNC_OR_PARITY)), 597 /*38*/ FLAG_ENTRY0("TxLaunchFifo6UncOrParityErr", 598 SEES(TX_LAUNCH_FIFO6_UNC_OR_PARITY)), 599 /*39*/ FLAG_ENTRY0("TxLaunchFifo7UncOrParityErr", 600 SEES(TX_LAUNCH_FIFO7_UNC_OR_PARITY)), 601 /*40*/ FLAG_ENTRY0("TxLaunchFifo8UncOrParityErr", 602 SEES(TX_LAUNCH_FIFO8_UNC_OR_PARITY)), 603 /*41*/ FLAG_ENTRY0("TxCreditReturnParityErr", SEES(TX_CREDIT_RETURN_PARITY)), 604 /*42*/ FLAG_ENTRY0("TxSbHdrUncErr", SEES(TX_SB_HDR_UNC)), 605 /*43*/ FLAG_ENTRY0("TxReadSdmaMemoryUncErr", SEES(TX_READ_SDMA_MEMORY_UNC)), 606 /*44*/ FLAG_ENTRY0("TxReadPioMemoryUncErr", SEES(TX_READ_PIO_MEMORY_UNC)), 607 /*45*/ FLAG_ENTRY0("TxEgressFifoUncErr", SEES(TX_EGRESS_FIFO_UNC)), 608 /*46*/ FLAG_ENTRY0("TxHcrcInsertionErr", SEES(TX_HCRC_INSERTION)), 609 /*47*/ FLAG_ENTRY0("TxCreditReturnVLErr", SEES(TX_CREDIT_RETURN_VL)), 610 /*48*/ FLAG_ENTRY0("TxLaunchFifo0CorErr", SEES(TX_LAUNCH_FIFO0_COR)), 611 /*49*/ FLAG_ENTRY0("TxLaunchFifo1CorErr", SEES(TX_LAUNCH_FIFO1_COR)), 612 /*50*/ FLAG_ENTRY0("TxLaunchFifo2CorErr", SEES(TX_LAUNCH_FIFO2_COR)), 613 /*51*/ FLAG_ENTRY0("TxLaunchFifo3CorErr", SEES(TX_LAUNCH_FIFO3_COR)), 614 /*52*/ FLAG_ENTRY0("TxLaunchFifo4CorErr", SEES(TX_LAUNCH_FIFO4_COR)), 615 /*53*/ FLAG_ENTRY0("TxLaunchFifo5CorErr", SEES(TX_LAUNCH_FIFO5_COR)), 616 /*54*/ FLAG_ENTRY0("TxLaunchFifo6CorErr", SEES(TX_LAUNCH_FIFO6_COR)), 617 /*55*/ FLAG_ENTRY0("TxLaunchFifo7CorErr", SEES(TX_LAUNCH_FIFO7_COR)), 618 /*56*/ FLAG_ENTRY0("TxLaunchFifo8CorErr", SEES(TX_LAUNCH_FIFO8_COR)), 619 /*57*/ FLAG_ENTRY0("TxCreditOverrunErr", SEES(TX_CREDIT_OVERRUN)), 620 /*58*/ FLAG_ENTRY0("TxSbHdrCorErr", SEES(TX_SB_HDR_COR)), 621 /*59*/ FLAG_ENTRY0("TxReadSdmaMemoryCorErr", SEES(TX_READ_SDMA_MEMORY_COR)), 622 /*60*/ FLAG_ENTRY0("TxReadPioMemoryCorErr", SEES(TX_READ_PIO_MEMORY_COR)), 623 /*61*/ FLAG_ENTRY0("TxEgressFifoCorErr", SEES(TX_EGRESS_FIFO_COR)), 624 /*62*/ FLAG_ENTRY0("TxReadSdmaMemoryCsrUncErr", 625 SEES(TX_READ_SDMA_MEMORY_CSR_UNC)), 626 /*63*/ FLAG_ENTRY0("TxReadPioMemoryCsrUncErr", 627 SEES(TX_READ_PIO_MEMORY_CSR_UNC)), 628 }; 629 630 /* 631 * TXE Egress Error Info flags 632 */ 633 #define SEEI(text) SEND_EGRESS_ERR_INFO_##text##_ERR_SMASK 634 static struct flag_table egress_err_info_flags[] = { 635 /* 0*/ FLAG_ENTRY0("Reserved", 0ull), 636 /* 1*/ FLAG_ENTRY0("VLErr", SEEI(VL)), 637 /* 2*/ FLAG_ENTRY0("JobKeyErr", SEEI(JOB_KEY)), 638 /* 3*/ FLAG_ENTRY0("JobKeyErr", SEEI(JOB_KEY)), 639 /* 4*/ FLAG_ENTRY0("PartitionKeyErr", SEEI(PARTITION_KEY)), 640 /* 5*/ FLAG_ENTRY0("SLIDErr", SEEI(SLID)), 641 /* 6*/ FLAG_ENTRY0("OpcodeErr", SEEI(OPCODE)), 642 /* 7*/ FLAG_ENTRY0("VLMappingErr", SEEI(VL_MAPPING)), 643 /* 8*/ FLAG_ENTRY0("RawErr", SEEI(RAW)), 644 /* 9*/ FLAG_ENTRY0("RawIPv6Err", SEEI(RAW_IPV6)), 645 /*10*/ FLAG_ENTRY0("GRHErr", SEEI(GRH)), 646 /*11*/ FLAG_ENTRY0("BypassErr", SEEI(BYPASS)), 647 /*12*/ FLAG_ENTRY0("KDETHPacketsErr", SEEI(KDETH_PACKETS)), 648 /*13*/ FLAG_ENTRY0("NonKDETHPacketsErr", SEEI(NON_KDETH_PACKETS)), 649 /*14*/ FLAG_ENTRY0("TooSmallIBPacketsErr", SEEI(TOO_SMALL_IB_PACKETS)), 650 /*15*/ FLAG_ENTRY0("TooSmallBypassPacketsErr", SEEI(TOO_SMALL_BYPASS_PACKETS)), 651 /*16*/ FLAG_ENTRY0("PbcTestErr", SEEI(PBC_TEST)), 652 /*17*/ FLAG_ENTRY0("BadPktLenErr", SEEI(BAD_PKT_LEN)), 653 /*18*/ FLAG_ENTRY0("TooLongIBPacketErr", SEEI(TOO_LONG_IB_PACKET)), 654 /*19*/ FLAG_ENTRY0("TooLongBypassPacketsErr", SEEI(TOO_LONG_BYPASS_PACKETS)), 655 /*20*/ FLAG_ENTRY0("PbcStaticRateControlErr", SEEI(PBC_STATIC_RATE_CONTROL)), 656 /*21*/ FLAG_ENTRY0("BypassBadPktLenErr", SEEI(BAD_PKT_LEN)), 657 }; 658 659 /* TXE Egress errors that cause an SPC freeze */ 660 #define ALL_TXE_EGRESS_FREEZE_ERR \ 661 (SEES(TX_EGRESS_FIFO_UNDERRUN_OR_PARITY) \ 662 | SEES(TX_PIO_LAUNCH_INTF_PARITY) \ 663 | SEES(TX_SDMA_LAUNCH_INTF_PARITY) \ 664 | SEES(TX_SBRD_CTL_STATE_MACHINE_PARITY) \ 665 | SEES(TX_LAUNCH_CSR_PARITY) \ 666 | SEES(TX_SBRD_CTL_CSR_PARITY) \ 667 | SEES(TX_CONFIG_PARITY) \ 668 | SEES(TX_LAUNCH_FIFO0_UNC_OR_PARITY) \ 669 | SEES(TX_LAUNCH_FIFO1_UNC_OR_PARITY) \ 670 | SEES(TX_LAUNCH_FIFO2_UNC_OR_PARITY) \ 671 | SEES(TX_LAUNCH_FIFO3_UNC_OR_PARITY) \ 672 | SEES(TX_LAUNCH_FIFO4_UNC_OR_PARITY) \ 673 | SEES(TX_LAUNCH_FIFO5_UNC_OR_PARITY) \ 674 | SEES(TX_LAUNCH_FIFO6_UNC_OR_PARITY) \ 675 | SEES(TX_LAUNCH_FIFO7_UNC_OR_PARITY) \ 676 | SEES(TX_LAUNCH_FIFO8_UNC_OR_PARITY) \ 677 | SEES(TX_CREDIT_RETURN_PARITY)) 678 679 /* 680 * TXE Send error flags 681 */ 682 #define SES(name) SEND_ERR_STATUS_SEND_##name##_ERR_SMASK 683 static struct flag_table send_err_status_flags[] = { 684 /* 0*/ FLAG_ENTRY0("SendCsrParityErr", SES(CSR_PARITY)), 685 /* 1*/ FLAG_ENTRY0("SendCsrReadBadAddrErr", SES(CSR_READ_BAD_ADDR)), 686 /* 2*/ FLAG_ENTRY0("SendCsrWriteBadAddrErr", SES(CSR_WRITE_BAD_ADDR)) 687 }; 688 689 /* 690 * TXE Send Context Error flags and consequences 691 */ 692 static struct flag_table sc_err_status_flags[] = { 693 /* 0*/ FLAG_ENTRY("InconsistentSop", 694 SEC_PACKET_DROPPED | SEC_SC_HALTED, 695 SEND_CTXT_ERR_STATUS_PIO_INCONSISTENT_SOP_ERR_SMASK), 696 /* 1*/ FLAG_ENTRY("DisallowedPacket", 697 SEC_PACKET_DROPPED | SEC_SC_HALTED, 698 SEND_CTXT_ERR_STATUS_PIO_DISALLOWED_PACKET_ERR_SMASK), 699 /* 2*/ FLAG_ENTRY("WriteCrossesBoundary", 700 SEC_WRITE_DROPPED | SEC_SC_HALTED, 701 SEND_CTXT_ERR_STATUS_PIO_WRITE_CROSSES_BOUNDARY_ERR_SMASK), 702 /* 3*/ FLAG_ENTRY("WriteOverflow", 703 SEC_WRITE_DROPPED | SEC_SC_HALTED, 704 SEND_CTXT_ERR_STATUS_PIO_WRITE_OVERFLOW_ERR_SMASK), 705 /* 4*/ FLAG_ENTRY("WriteOutOfBounds", 706 SEC_WRITE_DROPPED | SEC_SC_HALTED, 707 SEND_CTXT_ERR_STATUS_PIO_WRITE_OUT_OF_BOUNDS_ERR_SMASK), 708 /* 5-63 reserved*/ 709 }; 710 711 /* 712 * RXE Receive Error flags 713 */ 714 #define RXES(name) RCV_ERR_STATUS_RX_##name##_ERR_SMASK 715 static struct flag_table rxe_err_status_flags[] = { 716 /* 0*/ FLAG_ENTRY0("RxDmaCsrCorErr", RXES(DMA_CSR_COR)), 717 /* 1*/ FLAG_ENTRY0("RxDcIntfParityErr", RXES(DC_INTF_PARITY)), 718 /* 2*/ FLAG_ENTRY0("RxRcvHdrUncErr", RXES(RCV_HDR_UNC)), 719 /* 3*/ FLAG_ENTRY0("RxRcvHdrCorErr", RXES(RCV_HDR_COR)), 720 /* 4*/ FLAG_ENTRY0("RxRcvDataUncErr", RXES(RCV_DATA_UNC)), 721 /* 5*/ FLAG_ENTRY0("RxRcvDataCorErr", RXES(RCV_DATA_COR)), 722 /* 6*/ FLAG_ENTRY0("RxRcvQpMapTableUncErr", RXES(RCV_QP_MAP_TABLE_UNC)), 723 /* 7*/ FLAG_ENTRY0("RxRcvQpMapTableCorErr", RXES(RCV_QP_MAP_TABLE_COR)), 724 /* 8*/ FLAG_ENTRY0("RxRcvCsrParityErr", RXES(RCV_CSR_PARITY)), 725 /* 9*/ FLAG_ENTRY0("RxDcSopEopParityErr", RXES(DC_SOP_EOP_PARITY)), 726 /*10*/ FLAG_ENTRY0("RxDmaFlagUncErr", RXES(DMA_FLAG_UNC)), 727 /*11*/ FLAG_ENTRY0("RxDmaFlagCorErr", RXES(DMA_FLAG_COR)), 728 /*12*/ FLAG_ENTRY0("RxRcvFsmEncodingErr", RXES(RCV_FSM_ENCODING)), 729 /*13*/ FLAG_ENTRY0("RxRbufFreeListUncErr", RXES(RBUF_FREE_LIST_UNC)), 730 /*14*/ FLAG_ENTRY0("RxRbufFreeListCorErr", RXES(RBUF_FREE_LIST_COR)), 731 /*15*/ FLAG_ENTRY0("RxRbufLookupDesRegUncErr", RXES(RBUF_LOOKUP_DES_REG_UNC)), 732 /*16*/ FLAG_ENTRY0("RxRbufLookupDesRegUncCorErr", 733 RXES(RBUF_LOOKUP_DES_REG_UNC_COR)), 734 /*17*/ FLAG_ENTRY0("RxRbufLookupDesUncErr", RXES(RBUF_LOOKUP_DES_UNC)), 735 /*18*/ FLAG_ENTRY0("RxRbufLookupDesCorErr", RXES(RBUF_LOOKUP_DES_COR)), 736 /*19*/ FLAG_ENTRY0("RxRbufBlockListReadUncErr", 737 RXES(RBUF_BLOCK_LIST_READ_UNC)), 738 /*20*/ FLAG_ENTRY0("RxRbufBlockListReadCorErr", 739 RXES(RBUF_BLOCK_LIST_READ_COR)), 740 /*21*/ FLAG_ENTRY0("RxRbufCsrQHeadBufNumParityErr", 741 RXES(RBUF_CSR_QHEAD_BUF_NUM_PARITY)), 742 /*22*/ FLAG_ENTRY0("RxRbufCsrQEntCntParityErr", 743 RXES(RBUF_CSR_QENT_CNT_PARITY)), 744 /*23*/ FLAG_ENTRY0("RxRbufCsrQNextBufParityErr", 745 RXES(RBUF_CSR_QNEXT_BUF_PARITY)), 746 /*24*/ FLAG_ENTRY0("RxRbufCsrQVldBitParityErr", 747 RXES(RBUF_CSR_QVLD_BIT_PARITY)), 748 /*25*/ FLAG_ENTRY0("RxRbufCsrQHdPtrParityErr", RXES(RBUF_CSR_QHD_PTR_PARITY)), 749 /*26*/ FLAG_ENTRY0("RxRbufCsrQTlPtrParityErr", RXES(RBUF_CSR_QTL_PTR_PARITY)), 750 /*27*/ FLAG_ENTRY0("RxRbufCsrQNumOfPktParityErr", 751 RXES(RBUF_CSR_QNUM_OF_PKT_PARITY)), 752 /*28*/ FLAG_ENTRY0("RxRbufCsrQEOPDWParityErr", RXES(RBUF_CSR_QEOPDW_PARITY)), 753 /*29*/ FLAG_ENTRY0("RxRbufCtxIdParityErr", RXES(RBUF_CTX_ID_PARITY)), 754 /*30*/ FLAG_ENTRY0("RxRBufBadLookupErr", RXES(RBUF_BAD_LOOKUP)), 755 /*31*/ FLAG_ENTRY0("RxRbufFullErr", RXES(RBUF_FULL)), 756 /*32*/ FLAG_ENTRY0("RxRbufEmptyErr", RXES(RBUF_EMPTY)), 757 /*33*/ FLAG_ENTRY0("RxRbufFlRdAddrParityErr", RXES(RBUF_FL_RD_ADDR_PARITY)), 758 /*34*/ FLAG_ENTRY0("RxRbufFlWrAddrParityErr", RXES(RBUF_FL_WR_ADDR_PARITY)), 759 /*35*/ FLAG_ENTRY0("RxRbufFlInitdoneParityErr", 760 RXES(RBUF_FL_INITDONE_PARITY)), 761 /*36*/ FLAG_ENTRY0("RxRbufFlInitWrAddrParityErr", 762 RXES(RBUF_FL_INIT_WR_ADDR_PARITY)), 763 /*37*/ FLAG_ENTRY0("RxRbufNextFreeBufUncErr", RXES(RBUF_NEXT_FREE_BUF_UNC)), 764 /*38*/ FLAG_ENTRY0("RxRbufNextFreeBufCorErr", RXES(RBUF_NEXT_FREE_BUF_COR)), 765 /*39*/ FLAG_ENTRY0("RxLookupDesPart1UncErr", RXES(LOOKUP_DES_PART1_UNC)), 766 /*40*/ FLAG_ENTRY0("RxLookupDesPart1UncCorErr", 767 RXES(LOOKUP_DES_PART1_UNC_COR)), 768 /*41*/ FLAG_ENTRY0("RxLookupDesPart2ParityErr", 769 RXES(LOOKUP_DES_PART2_PARITY)), 770 /*42*/ FLAG_ENTRY0("RxLookupRcvArrayUncErr", RXES(LOOKUP_RCV_ARRAY_UNC)), 771 /*43*/ FLAG_ENTRY0("RxLookupRcvArrayCorErr", RXES(LOOKUP_RCV_ARRAY_COR)), 772 /*44*/ FLAG_ENTRY0("RxLookupCsrParityErr", RXES(LOOKUP_CSR_PARITY)), 773 /*45*/ FLAG_ENTRY0("RxHqIntrCsrParityErr", RXES(HQ_INTR_CSR_PARITY)), 774 /*46*/ FLAG_ENTRY0("RxHqIntrFsmErr", RXES(HQ_INTR_FSM)), 775 /*47*/ FLAG_ENTRY0("RxRbufDescPart1UncErr", RXES(RBUF_DESC_PART1_UNC)), 776 /*48*/ FLAG_ENTRY0("RxRbufDescPart1CorErr", RXES(RBUF_DESC_PART1_COR)), 777 /*49*/ FLAG_ENTRY0("RxRbufDescPart2UncErr", RXES(RBUF_DESC_PART2_UNC)), 778 /*50*/ FLAG_ENTRY0("RxRbufDescPart2CorErr", RXES(RBUF_DESC_PART2_COR)), 779 /*51*/ FLAG_ENTRY0("RxDmaHdrFifoRdUncErr", RXES(DMA_HDR_FIFO_RD_UNC)), 780 /*52*/ FLAG_ENTRY0("RxDmaHdrFifoRdCorErr", RXES(DMA_HDR_FIFO_RD_COR)), 781 /*53*/ FLAG_ENTRY0("RxDmaDataFifoRdUncErr", RXES(DMA_DATA_FIFO_RD_UNC)), 782 /*54*/ FLAG_ENTRY0("RxDmaDataFifoRdCorErr", RXES(DMA_DATA_FIFO_RD_COR)), 783 /*55*/ FLAG_ENTRY0("RxRbufDataUncErr", RXES(RBUF_DATA_UNC)), 784 /*56*/ FLAG_ENTRY0("RxRbufDataCorErr", RXES(RBUF_DATA_COR)), 785 /*57*/ FLAG_ENTRY0("RxDmaCsrParityErr", RXES(DMA_CSR_PARITY)), 786 /*58*/ FLAG_ENTRY0("RxDmaEqFsmEncodingErr", RXES(DMA_EQ_FSM_ENCODING)), 787 /*59*/ FLAG_ENTRY0("RxDmaDqFsmEncodingErr", RXES(DMA_DQ_FSM_ENCODING)), 788 /*60*/ FLAG_ENTRY0("RxDmaCsrUncErr", RXES(DMA_CSR_UNC)), 789 /*61*/ FLAG_ENTRY0("RxCsrReadBadAddrErr", RXES(CSR_READ_BAD_ADDR)), 790 /*62*/ FLAG_ENTRY0("RxCsrWriteBadAddrErr", RXES(CSR_WRITE_BAD_ADDR)), 791 /*63*/ FLAG_ENTRY0("RxCsrParityErr", RXES(CSR_PARITY)) 792 }; 793 794 /* RXE errors that will trigger an SPC freeze */ 795 #define ALL_RXE_FREEZE_ERR \ 796 (RCV_ERR_STATUS_RX_RCV_QP_MAP_TABLE_UNC_ERR_SMASK \ 797 | RCV_ERR_STATUS_RX_RCV_CSR_PARITY_ERR_SMASK \ 798 | RCV_ERR_STATUS_RX_DMA_FLAG_UNC_ERR_SMASK \ 799 | RCV_ERR_STATUS_RX_RCV_FSM_ENCODING_ERR_SMASK \ 800 | RCV_ERR_STATUS_RX_RBUF_FREE_LIST_UNC_ERR_SMASK \ 801 | RCV_ERR_STATUS_RX_RBUF_LOOKUP_DES_REG_UNC_ERR_SMASK \ 802 | RCV_ERR_STATUS_RX_RBUF_LOOKUP_DES_REG_UNC_COR_ERR_SMASK \ 803 | RCV_ERR_STATUS_RX_RBUF_LOOKUP_DES_UNC_ERR_SMASK \ 804 | RCV_ERR_STATUS_RX_RBUF_BLOCK_LIST_READ_UNC_ERR_SMASK \ 805 | RCV_ERR_STATUS_RX_RBUF_CSR_QHEAD_BUF_NUM_PARITY_ERR_SMASK \ 806 | RCV_ERR_STATUS_RX_RBUF_CSR_QENT_CNT_PARITY_ERR_SMASK \ 807 | RCV_ERR_STATUS_RX_RBUF_CSR_QNEXT_BUF_PARITY_ERR_SMASK \ 808 | RCV_ERR_STATUS_RX_RBUF_CSR_QVLD_BIT_PARITY_ERR_SMASK \ 809 | RCV_ERR_STATUS_RX_RBUF_CSR_QHD_PTR_PARITY_ERR_SMASK \ 810 | RCV_ERR_STATUS_RX_RBUF_CSR_QTL_PTR_PARITY_ERR_SMASK \ 811 | RCV_ERR_STATUS_RX_RBUF_CSR_QNUM_OF_PKT_PARITY_ERR_SMASK \ 812 | RCV_ERR_STATUS_RX_RBUF_CSR_QEOPDW_PARITY_ERR_SMASK \ 813 | RCV_ERR_STATUS_RX_RBUF_CTX_ID_PARITY_ERR_SMASK \ 814 | RCV_ERR_STATUS_RX_RBUF_BAD_LOOKUP_ERR_SMASK \ 815 | RCV_ERR_STATUS_RX_RBUF_FULL_ERR_SMASK \ 816 | RCV_ERR_STATUS_RX_RBUF_EMPTY_ERR_SMASK \ 817 | RCV_ERR_STATUS_RX_RBUF_FL_RD_ADDR_PARITY_ERR_SMASK \ 818 | RCV_ERR_STATUS_RX_RBUF_FL_WR_ADDR_PARITY_ERR_SMASK \ 819 | RCV_ERR_STATUS_RX_RBUF_FL_INITDONE_PARITY_ERR_SMASK \ 820 | RCV_ERR_STATUS_RX_RBUF_FL_INIT_WR_ADDR_PARITY_ERR_SMASK \ 821 | RCV_ERR_STATUS_RX_RBUF_NEXT_FREE_BUF_UNC_ERR_SMASK \ 822 | RCV_ERR_STATUS_RX_LOOKUP_DES_PART1_UNC_ERR_SMASK \ 823 | RCV_ERR_STATUS_RX_LOOKUP_DES_PART1_UNC_COR_ERR_SMASK \ 824 | RCV_ERR_STATUS_RX_LOOKUP_DES_PART2_PARITY_ERR_SMASK \ 825 | RCV_ERR_STATUS_RX_LOOKUP_RCV_ARRAY_UNC_ERR_SMASK \ 826 | RCV_ERR_STATUS_RX_LOOKUP_CSR_PARITY_ERR_SMASK \ 827 | RCV_ERR_STATUS_RX_HQ_INTR_CSR_PARITY_ERR_SMASK \ 828 | RCV_ERR_STATUS_RX_HQ_INTR_FSM_ERR_SMASK \ 829 | RCV_ERR_STATUS_RX_RBUF_DESC_PART1_UNC_ERR_SMASK \ 830 | RCV_ERR_STATUS_RX_RBUF_DESC_PART1_COR_ERR_SMASK \ 831 | RCV_ERR_STATUS_RX_RBUF_DESC_PART2_UNC_ERR_SMASK \ 832 | RCV_ERR_STATUS_RX_DMA_HDR_FIFO_RD_UNC_ERR_SMASK \ 833 | RCV_ERR_STATUS_RX_DMA_DATA_FIFO_RD_UNC_ERR_SMASK \ 834 | RCV_ERR_STATUS_RX_RBUF_DATA_UNC_ERR_SMASK \ 835 | RCV_ERR_STATUS_RX_DMA_CSR_PARITY_ERR_SMASK \ 836 | RCV_ERR_STATUS_RX_DMA_EQ_FSM_ENCODING_ERR_SMASK \ 837 | RCV_ERR_STATUS_RX_DMA_DQ_FSM_ENCODING_ERR_SMASK \ 838 | RCV_ERR_STATUS_RX_DMA_CSR_UNC_ERR_SMASK \ 839 | RCV_ERR_STATUS_RX_CSR_PARITY_ERR_SMASK) 840 841 #define RXE_FREEZE_ABORT_MASK \ 842 (RCV_ERR_STATUS_RX_DMA_CSR_UNC_ERR_SMASK | \ 843 RCV_ERR_STATUS_RX_DMA_HDR_FIFO_RD_UNC_ERR_SMASK | \ 844 RCV_ERR_STATUS_RX_DMA_DATA_FIFO_RD_UNC_ERR_SMASK) 845 846 /* 847 * DCC Error Flags 848 */ 849 #define DCCE(name) DCC_ERR_FLG_##name##_SMASK 850 static struct flag_table dcc_err_flags[] = { 851 FLAG_ENTRY0("bad_l2_err", DCCE(BAD_L2_ERR)), 852 FLAG_ENTRY0("bad_sc_err", DCCE(BAD_SC_ERR)), 853 FLAG_ENTRY0("bad_mid_tail_err", DCCE(BAD_MID_TAIL_ERR)), 854 FLAG_ENTRY0("bad_preemption_err", DCCE(BAD_PREEMPTION_ERR)), 855 FLAG_ENTRY0("preemption_err", DCCE(PREEMPTION_ERR)), 856 FLAG_ENTRY0("preemptionvl15_err", DCCE(PREEMPTIONVL15_ERR)), 857 FLAG_ENTRY0("bad_vl_marker_err", DCCE(BAD_VL_MARKER_ERR)), 858 FLAG_ENTRY0("bad_dlid_target_err", DCCE(BAD_DLID_TARGET_ERR)), 859 FLAG_ENTRY0("bad_lver_err", DCCE(BAD_LVER_ERR)), 860 FLAG_ENTRY0("uncorrectable_err", DCCE(UNCORRECTABLE_ERR)), 861 FLAG_ENTRY0("bad_crdt_ack_err", DCCE(BAD_CRDT_ACK_ERR)), 862 FLAG_ENTRY0("unsup_pkt_type", DCCE(UNSUP_PKT_TYPE)), 863 FLAG_ENTRY0("bad_ctrl_flit_err", DCCE(BAD_CTRL_FLIT_ERR)), 864 FLAG_ENTRY0("event_cntr_parity_err", DCCE(EVENT_CNTR_PARITY_ERR)), 865 FLAG_ENTRY0("event_cntr_rollover_err", DCCE(EVENT_CNTR_ROLLOVER_ERR)), 866 FLAG_ENTRY0("link_err", DCCE(LINK_ERR)), 867 FLAG_ENTRY0("misc_cntr_rollover_err", DCCE(MISC_CNTR_ROLLOVER_ERR)), 868 FLAG_ENTRY0("bad_ctrl_dist_err", DCCE(BAD_CTRL_DIST_ERR)), 869 FLAG_ENTRY0("bad_tail_dist_err", DCCE(BAD_TAIL_DIST_ERR)), 870 FLAG_ENTRY0("bad_head_dist_err", DCCE(BAD_HEAD_DIST_ERR)), 871 FLAG_ENTRY0("nonvl15_state_err", DCCE(NONVL15_STATE_ERR)), 872 FLAG_ENTRY0("vl15_multi_err", DCCE(VL15_MULTI_ERR)), 873 FLAG_ENTRY0("bad_pkt_length_err", DCCE(BAD_PKT_LENGTH_ERR)), 874 FLAG_ENTRY0("unsup_vl_err", DCCE(UNSUP_VL_ERR)), 875 FLAG_ENTRY0("perm_nvl15_err", DCCE(PERM_NVL15_ERR)), 876 FLAG_ENTRY0("slid_zero_err", DCCE(SLID_ZERO_ERR)), 877 FLAG_ENTRY0("dlid_zero_err", DCCE(DLID_ZERO_ERR)), 878 FLAG_ENTRY0("length_mtu_err", DCCE(LENGTH_MTU_ERR)), 879 FLAG_ENTRY0("rx_early_drop_err", DCCE(RX_EARLY_DROP_ERR)), 880 FLAG_ENTRY0("late_short_err", DCCE(LATE_SHORT_ERR)), 881 FLAG_ENTRY0("late_long_err", DCCE(LATE_LONG_ERR)), 882 FLAG_ENTRY0("late_ebp_err", DCCE(LATE_EBP_ERR)), 883 FLAG_ENTRY0("fpe_tx_fifo_ovflw_err", DCCE(FPE_TX_FIFO_OVFLW_ERR)), 884 FLAG_ENTRY0("fpe_tx_fifo_unflw_err", DCCE(FPE_TX_FIFO_UNFLW_ERR)), 885 FLAG_ENTRY0("csr_access_blocked_host", DCCE(CSR_ACCESS_BLOCKED_HOST)), 886 FLAG_ENTRY0("csr_access_blocked_uc", DCCE(CSR_ACCESS_BLOCKED_UC)), 887 FLAG_ENTRY0("tx_ctrl_parity_err", DCCE(TX_CTRL_PARITY_ERR)), 888 FLAG_ENTRY0("tx_ctrl_parity_mbe_err", DCCE(TX_CTRL_PARITY_MBE_ERR)), 889 FLAG_ENTRY0("tx_sc_parity_err", DCCE(TX_SC_PARITY_ERR)), 890 FLAG_ENTRY0("rx_ctrl_parity_mbe_err", DCCE(RX_CTRL_PARITY_MBE_ERR)), 891 FLAG_ENTRY0("csr_parity_err", DCCE(CSR_PARITY_ERR)), 892 FLAG_ENTRY0("csr_inval_addr", DCCE(CSR_INVAL_ADDR)), 893 FLAG_ENTRY0("tx_byte_shft_parity_err", DCCE(TX_BYTE_SHFT_PARITY_ERR)), 894 FLAG_ENTRY0("rx_byte_shft_parity_err", DCCE(RX_BYTE_SHFT_PARITY_ERR)), 895 FLAG_ENTRY0("fmconfig_err", DCCE(FMCONFIG_ERR)), 896 FLAG_ENTRY0("rcvport_err", DCCE(RCVPORT_ERR)), 897 }; 898 899 /* 900 * LCB error flags 901 */ 902 #define LCBE(name) DC_LCB_ERR_FLG_##name##_SMASK 903 static struct flag_table lcb_err_flags[] = { 904 /* 0*/ FLAG_ENTRY0("CSR_PARITY_ERR", LCBE(CSR_PARITY_ERR)), 905 /* 1*/ FLAG_ENTRY0("INVALID_CSR_ADDR", LCBE(INVALID_CSR_ADDR)), 906 /* 2*/ FLAG_ENTRY0("RST_FOR_FAILED_DESKEW", LCBE(RST_FOR_FAILED_DESKEW)), 907 /* 3*/ FLAG_ENTRY0("ALL_LNS_FAILED_REINIT_TEST", 908 LCBE(ALL_LNS_FAILED_REINIT_TEST)), 909 /* 4*/ FLAG_ENTRY0("LOST_REINIT_STALL_OR_TOS", LCBE(LOST_REINIT_STALL_OR_TOS)), 910 /* 5*/ FLAG_ENTRY0("TX_LESS_THAN_FOUR_LNS", LCBE(TX_LESS_THAN_FOUR_LNS)), 911 /* 6*/ FLAG_ENTRY0("RX_LESS_THAN_FOUR_LNS", LCBE(RX_LESS_THAN_FOUR_LNS)), 912 /* 7*/ FLAG_ENTRY0("SEQ_CRC_ERR", LCBE(SEQ_CRC_ERR)), 913 /* 8*/ FLAG_ENTRY0("REINIT_FROM_PEER", LCBE(REINIT_FROM_PEER)), 914 /* 9*/ FLAG_ENTRY0("REINIT_FOR_LN_DEGRADE", LCBE(REINIT_FOR_LN_DEGRADE)), 915 /*10*/ FLAG_ENTRY0("CRC_ERR_CNT_HIT_LIMIT", LCBE(CRC_ERR_CNT_HIT_LIMIT)), 916 /*11*/ FLAG_ENTRY0("RCLK_STOPPED", LCBE(RCLK_STOPPED)), 917 /*12*/ FLAG_ENTRY0("UNEXPECTED_REPLAY_MARKER", LCBE(UNEXPECTED_REPLAY_MARKER)), 918 /*13*/ FLAG_ENTRY0("UNEXPECTED_ROUND_TRIP_MARKER", 919 LCBE(UNEXPECTED_ROUND_TRIP_MARKER)), 920 /*14*/ FLAG_ENTRY0("ILLEGAL_NULL_LTP", LCBE(ILLEGAL_NULL_LTP)), 921 /*15*/ FLAG_ENTRY0("ILLEGAL_FLIT_ENCODING", LCBE(ILLEGAL_FLIT_ENCODING)), 922 /*16*/ FLAG_ENTRY0("FLIT_INPUT_BUF_OFLW", LCBE(FLIT_INPUT_BUF_OFLW)), 923 /*17*/ FLAG_ENTRY0("VL_ACK_INPUT_BUF_OFLW", LCBE(VL_ACK_INPUT_BUF_OFLW)), 924 /*18*/ FLAG_ENTRY0("VL_ACK_INPUT_PARITY_ERR", LCBE(VL_ACK_INPUT_PARITY_ERR)), 925 /*19*/ FLAG_ENTRY0("VL_ACK_INPUT_WRONG_CRC_MODE", 926 LCBE(VL_ACK_INPUT_WRONG_CRC_MODE)), 927 /*20*/ FLAG_ENTRY0("FLIT_INPUT_BUF_MBE", LCBE(FLIT_INPUT_BUF_MBE)), 928 /*21*/ FLAG_ENTRY0("FLIT_INPUT_BUF_SBE", LCBE(FLIT_INPUT_BUF_SBE)), 929 /*22*/ FLAG_ENTRY0("REPLAY_BUF_MBE", LCBE(REPLAY_BUF_MBE)), 930 /*23*/ FLAG_ENTRY0("REPLAY_BUF_SBE", LCBE(REPLAY_BUF_SBE)), 931 /*24*/ FLAG_ENTRY0("CREDIT_RETURN_FLIT_MBE", LCBE(CREDIT_RETURN_FLIT_MBE)), 932 /*25*/ FLAG_ENTRY0("RST_FOR_LINK_TIMEOUT", LCBE(RST_FOR_LINK_TIMEOUT)), 933 /*26*/ FLAG_ENTRY0("RST_FOR_INCOMPLT_RND_TRIP", 934 LCBE(RST_FOR_INCOMPLT_RND_TRIP)), 935 /*27*/ FLAG_ENTRY0("HOLD_REINIT", LCBE(HOLD_REINIT)), 936 /*28*/ FLAG_ENTRY0("NEG_EDGE_LINK_TRANSFER_ACTIVE", 937 LCBE(NEG_EDGE_LINK_TRANSFER_ACTIVE)), 938 /*29*/ FLAG_ENTRY0("REDUNDANT_FLIT_PARITY_ERR", 939 LCBE(REDUNDANT_FLIT_PARITY_ERR)) 940 }; 941 942 /* 943 * DC8051 Error Flags 944 */ 945 #define D8E(name) DC_DC8051_ERR_FLG_##name##_SMASK 946 static struct flag_table dc8051_err_flags[] = { 947 FLAG_ENTRY0("SET_BY_8051", D8E(SET_BY_8051)), 948 FLAG_ENTRY0("LOST_8051_HEART_BEAT", D8E(LOST_8051_HEART_BEAT)), 949 FLAG_ENTRY0("CRAM_MBE", D8E(CRAM_MBE)), 950 FLAG_ENTRY0("CRAM_SBE", D8E(CRAM_SBE)), 951 FLAG_ENTRY0("DRAM_MBE", D8E(DRAM_MBE)), 952 FLAG_ENTRY0("DRAM_SBE", D8E(DRAM_SBE)), 953 FLAG_ENTRY0("IRAM_MBE", D8E(IRAM_MBE)), 954 FLAG_ENTRY0("IRAM_SBE", D8E(IRAM_SBE)), 955 FLAG_ENTRY0("UNMATCHED_SECURE_MSG_ACROSS_BCC_LANES", 956 D8E(UNMATCHED_SECURE_MSG_ACROSS_BCC_LANES)), 957 FLAG_ENTRY0("INVALID_CSR_ADDR", D8E(INVALID_CSR_ADDR)), 958 }; 959 960 /* 961 * DC8051 Information Error flags 962 * 963 * Flags in DC8051_DBG_ERR_INFO_SET_BY_8051.ERROR field. 964 */ 965 static struct flag_table dc8051_info_err_flags[] = { 966 FLAG_ENTRY0("Spico ROM check failed", SPICO_ROM_FAILED), 967 FLAG_ENTRY0("Unknown frame received", UNKNOWN_FRAME), 968 FLAG_ENTRY0("Target BER not met", TARGET_BER_NOT_MET), 969 FLAG_ENTRY0("Serdes internal loopback failure", 970 FAILED_SERDES_INTERNAL_LOOPBACK), 971 FLAG_ENTRY0("Failed SerDes init", FAILED_SERDES_INIT), 972 FLAG_ENTRY0("Failed LNI(Polling)", FAILED_LNI_POLLING), 973 FLAG_ENTRY0("Failed LNI(Debounce)", FAILED_LNI_DEBOUNCE), 974 FLAG_ENTRY0("Failed LNI(EstbComm)", FAILED_LNI_ESTBCOMM), 975 FLAG_ENTRY0("Failed LNI(OptEq)", FAILED_LNI_OPTEQ), 976 FLAG_ENTRY0("Failed LNI(VerifyCap_1)", FAILED_LNI_VERIFY_CAP1), 977 FLAG_ENTRY0("Failed LNI(VerifyCap_2)", FAILED_LNI_VERIFY_CAP2), 978 FLAG_ENTRY0("Failed LNI(ConfigLT)", FAILED_LNI_CONFIGLT), 979 FLAG_ENTRY0("Host Handshake Timeout", HOST_HANDSHAKE_TIMEOUT), 980 FLAG_ENTRY0("External Device Request Timeout", 981 EXTERNAL_DEVICE_REQ_TIMEOUT), 982 }; 983 984 /* 985 * DC8051 Information Host Information flags 986 * 987 * Flags in DC8051_DBG_ERR_INFO_SET_BY_8051.HOST_MSG field. 988 */ 989 static struct flag_table dc8051_info_host_msg_flags[] = { 990 FLAG_ENTRY0("Host request done", 0x0001), 991 FLAG_ENTRY0("BC PWR_MGM message", 0x0002), 992 FLAG_ENTRY0("BC SMA message", 0x0004), 993 FLAG_ENTRY0("BC Unknown message (BCC)", 0x0008), 994 FLAG_ENTRY0("BC Unknown message (LCB)", 0x0010), 995 FLAG_ENTRY0("External device config request", 0x0020), 996 FLAG_ENTRY0("VerifyCap all frames received", 0x0040), 997 FLAG_ENTRY0("LinkUp achieved", 0x0080), 998 FLAG_ENTRY0("Link going down", 0x0100), 999 FLAG_ENTRY0("Link width downgraded", 0x0200), 1000 }; 1001 1002 static u32 encoded_size(u32 size); 1003 static u32 chip_to_opa_lstate(struct hfi1_devdata *dd, u32 chip_lstate); 1004 static int set_physical_link_state(struct hfi1_devdata *dd, u64 state); 1005 static void read_vc_remote_phy(struct hfi1_devdata *dd, u8 *power_management, 1006 u8 *continuous); 1007 static void read_vc_remote_fabric(struct hfi1_devdata *dd, u8 *vau, u8 *z, 1008 u8 *vcu, u16 *vl15buf, u8 *crc_sizes); 1009 static void read_vc_remote_link_width(struct hfi1_devdata *dd, 1010 u8 *remote_tx_rate, u16 *link_widths); 1011 static void read_vc_local_link_mode(struct hfi1_devdata *dd, u8 *misc_bits, 1012 u8 *flag_bits, u16 *link_widths); 1013 static void read_remote_device_id(struct hfi1_devdata *dd, u16 *device_id, 1014 u8 *device_rev); 1015 static void read_local_lni(struct hfi1_devdata *dd, u8 *enable_lane_rx); 1016 static int read_tx_settings(struct hfi1_devdata *dd, u8 *enable_lane_tx, 1017 u8 *tx_polarity_inversion, 1018 u8 *rx_polarity_inversion, u8 *max_rate); 1019 static void handle_sdma_eng_err(struct hfi1_devdata *dd, 1020 unsigned int context, u64 err_status); 1021 static void handle_qsfp_int(struct hfi1_devdata *dd, u32 source, u64 reg); 1022 static void handle_dcc_err(struct hfi1_devdata *dd, 1023 unsigned int context, u64 err_status); 1024 static void handle_lcb_err(struct hfi1_devdata *dd, 1025 unsigned int context, u64 err_status); 1026 static void handle_8051_interrupt(struct hfi1_devdata *dd, u32 unused, u64 reg); 1027 static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1028 static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1029 static void handle_misc_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1030 static void handle_pio_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1031 static void handle_sdma_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1032 static void handle_egress_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1033 static void handle_txe_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1034 static void set_partition_keys(struct hfi1_pportdata *ppd); 1035 static const char *link_state_name(u32 state); 1036 static const char *link_state_reason_name(struct hfi1_pportdata *ppd, 1037 u32 state); 1038 static int do_8051_command(struct hfi1_devdata *dd, u32 type, u64 in_data, 1039 u64 *out_data); 1040 static int read_idle_sma(struct hfi1_devdata *dd, u64 *data); 1041 static int thermal_init(struct hfi1_devdata *dd); 1042 1043 static void update_statusp(struct hfi1_pportdata *ppd, u32 state); 1044 static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd, 1045 int msecs); 1046 static int wait_logical_linkstate(struct hfi1_pportdata *ppd, u32 state, 1047 int msecs); 1048 static void log_state_transition(struct hfi1_pportdata *ppd, u32 state); 1049 static void log_physical_state(struct hfi1_pportdata *ppd, u32 state); 1050 static int wait_physical_linkstate(struct hfi1_pportdata *ppd, u32 state, 1051 int msecs); 1052 static int wait_phys_link_out_of_offline(struct hfi1_pportdata *ppd, 1053 int msecs); 1054 static void read_planned_down_reason_code(struct hfi1_devdata *dd, u8 *pdrrc); 1055 static void read_link_down_reason(struct hfi1_devdata *dd, u8 *ldr); 1056 static void handle_temp_err(struct hfi1_devdata *dd); 1057 static void dc_shutdown(struct hfi1_devdata *dd); 1058 static void dc_start(struct hfi1_devdata *dd); 1059 static int qos_rmt_entries(struct hfi1_devdata *dd, unsigned int *mp, 1060 unsigned int *np); 1061 static void clear_full_mgmt_pkey(struct hfi1_pportdata *ppd); 1062 static int wait_link_transfer_active(struct hfi1_devdata *dd, int wait_ms); 1063 static void clear_rsm_rule(struct hfi1_devdata *dd, u8 rule_index); 1064 static void update_xmit_counters(struct hfi1_pportdata *ppd, u16 link_width); 1065 1066 /* 1067 * Error interrupt table entry. This is used as input to the interrupt 1068 * "clear down" routine used for all second tier error interrupt register. 1069 * Second tier interrupt registers have a single bit representing them 1070 * in the top-level CceIntStatus. 1071 */ 1072 struct err_reg_info { 1073 u32 status; /* status CSR offset */ 1074 u32 clear; /* clear CSR offset */ 1075 u32 mask; /* mask CSR offset */ 1076 void (*handler)(struct hfi1_devdata *dd, u32 source, u64 reg); 1077 const char *desc; 1078 }; 1079 1080 #define NUM_MISC_ERRS (IS_GENERAL_ERR_END + 1 - IS_GENERAL_ERR_START) 1081 #define NUM_DC_ERRS (IS_DC_END + 1 - IS_DC_START) 1082 #define NUM_VARIOUS (IS_VARIOUS_END + 1 - IS_VARIOUS_START) 1083 1084 /* 1085 * Helpers for building HFI and DC error interrupt table entries. Different 1086 * helpers are needed because of inconsistent register names. 1087 */ 1088 #define EE(reg, handler, desc) \ 1089 { reg##_STATUS, reg##_CLEAR, reg##_MASK, \ 1090 handler, desc } 1091 #define DC_EE1(reg, handler, desc) \ 1092 { reg##_FLG, reg##_FLG_CLR, reg##_FLG_EN, handler, desc } 1093 #define DC_EE2(reg, handler, desc) \ 1094 { reg##_FLG, reg##_CLR, reg##_EN, handler, desc } 1095 1096 /* 1097 * Table of the "misc" grouping of error interrupts. Each entry refers to 1098 * another register containing more information. 1099 */ 1100 static const struct err_reg_info misc_errs[NUM_MISC_ERRS] = { 1101 /* 0*/ EE(CCE_ERR, handle_cce_err, "CceErr"), 1102 /* 1*/ EE(RCV_ERR, handle_rxe_err, "RxeErr"), 1103 /* 2*/ EE(MISC_ERR, handle_misc_err, "MiscErr"), 1104 /* 3*/ { 0, 0, 0, NULL }, /* reserved */ 1105 /* 4*/ EE(SEND_PIO_ERR, handle_pio_err, "PioErr"), 1106 /* 5*/ EE(SEND_DMA_ERR, handle_sdma_err, "SDmaErr"), 1107 /* 6*/ EE(SEND_EGRESS_ERR, handle_egress_err, "EgressErr"), 1108 /* 7*/ EE(SEND_ERR, handle_txe_err, "TxeErr") 1109 /* the rest are reserved */ 1110 }; 1111 1112 /* 1113 * Index into the Various section of the interrupt sources 1114 * corresponding to the Critical Temperature interrupt. 1115 */ 1116 #define TCRIT_INT_SOURCE 4 1117 1118 /* 1119 * SDMA error interrupt entry - refers to another register containing more 1120 * information. 1121 */ 1122 static const struct err_reg_info sdma_eng_err = 1123 EE(SEND_DMA_ENG_ERR, handle_sdma_eng_err, "SDmaEngErr"); 1124 1125 static const struct err_reg_info various_err[NUM_VARIOUS] = { 1126 /* 0*/ { 0, 0, 0, NULL }, /* PbcInt */ 1127 /* 1*/ { 0, 0, 0, NULL }, /* GpioAssertInt */ 1128 /* 2*/ EE(ASIC_QSFP1, handle_qsfp_int, "QSFP1"), 1129 /* 3*/ EE(ASIC_QSFP2, handle_qsfp_int, "QSFP2"), 1130 /* 4*/ { 0, 0, 0, NULL }, /* TCritInt */ 1131 /* rest are reserved */ 1132 }; 1133 1134 /* 1135 * The DC encoding of mtu_cap for 10K MTU in the DCC_CFG_PORT_CONFIG 1136 * register can not be derived from the MTU value because 10K is not 1137 * a power of 2. Therefore, we need a constant. Everything else can 1138 * be calculated. 1139 */ 1140 #define DCC_CFG_PORT_MTU_CAP_10240 7 1141 1142 /* 1143 * Table of the DC grouping of error interrupts. Each entry refers to 1144 * another register containing more information. 1145 */ 1146 static const struct err_reg_info dc_errs[NUM_DC_ERRS] = { 1147 /* 0*/ DC_EE1(DCC_ERR, handle_dcc_err, "DCC Err"), 1148 /* 1*/ DC_EE2(DC_LCB_ERR, handle_lcb_err, "LCB Err"), 1149 /* 2*/ DC_EE2(DC_DC8051_ERR, handle_8051_interrupt, "DC8051 Interrupt"), 1150 /* 3*/ /* dc_lbm_int - special, see is_dc_int() */ 1151 /* the rest are reserved */ 1152 }; 1153 1154 struct cntr_entry { 1155 /* 1156 * counter name 1157 */ 1158 char *name; 1159 1160 /* 1161 * csr to read for name (if applicable) 1162 */ 1163 u64 csr; 1164 1165 /* 1166 * offset into dd or ppd to store the counter's value 1167 */ 1168 int offset; 1169 1170 /* 1171 * flags 1172 */ 1173 u8 flags; 1174 1175 /* 1176 * accessor for stat element, context either dd or ppd 1177 */ 1178 u64 (*rw_cntr)(const struct cntr_entry *, void *context, int vl, 1179 int mode, u64 data); 1180 }; 1181 1182 #define C_RCV_HDR_OVF_FIRST C_RCV_HDR_OVF_0 1183 #define C_RCV_HDR_OVF_LAST C_RCV_HDR_OVF_159 1184 1185 #define CNTR_ELEM(name, csr, offset, flags, accessor) \ 1186 { \ 1187 name, \ 1188 csr, \ 1189 offset, \ 1190 flags, \ 1191 accessor \ 1192 } 1193 1194 /* 32bit RXE */ 1195 #define RXE32_PORT_CNTR_ELEM(name, counter, flags) \ 1196 CNTR_ELEM(#name, \ 1197 (counter * 8 + RCV_COUNTER_ARRAY32), \ 1198 0, flags | CNTR_32BIT, \ 1199 port_access_u32_csr) 1200 1201 #define RXE32_DEV_CNTR_ELEM(name, counter, flags) \ 1202 CNTR_ELEM(#name, \ 1203 (counter * 8 + RCV_COUNTER_ARRAY32), \ 1204 0, flags | CNTR_32BIT, \ 1205 dev_access_u32_csr) 1206 1207 /* 64bit RXE */ 1208 #define RXE64_PORT_CNTR_ELEM(name, counter, flags) \ 1209 CNTR_ELEM(#name, \ 1210 (counter * 8 + RCV_COUNTER_ARRAY64), \ 1211 0, flags, \ 1212 port_access_u64_csr) 1213 1214 #define RXE64_DEV_CNTR_ELEM(name, counter, flags) \ 1215 CNTR_ELEM(#name, \ 1216 (counter * 8 + RCV_COUNTER_ARRAY64), \ 1217 0, flags, \ 1218 dev_access_u64_csr) 1219 1220 #define OVR_LBL(ctx) C_RCV_HDR_OVF_ ## ctx 1221 #define OVR_ELM(ctx) \ 1222 CNTR_ELEM("RcvHdrOvr" #ctx, \ 1223 (RCV_HDR_OVFL_CNT + ctx * 0x100), \ 1224 0, CNTR_NORMAL, port_access_u64_csr) 1225 1226 /* 32bit TXE */ 1227 #define TXE32_PORT_CNTR_ELEM(name, counter, flags) \ 1228 CNTR_ELEM(#name, \ 1229 (counter * 8 + SEND_COUNTER_ARRAY32), \ 1230 0, flags | CNTR_32BIT, \ 1231 port_access_u32_csr) 1232 1233 /* 64bit TXE */ 1234 #define TXE64_PORT_CNTR_ELEM(name, counter, flags) \ 1235 CNTR_ELEM(#name, \ 1236 (counter * 8 + SEND_COUNTER_ARRAY64), \ 1237 0, flags, \ 1238 port_access_u64_csr) 1239 1240 # define TX64_DEV_CNTR_ELEM(name, counter, flags) \ 1241 CNTR_ELEM(#name,\ 1242 counter * 8 + SEND_COUNTER_ARRAY64, \ 1243 0, \ 1244 flags, \ 1245 dev_access_u64_csr) 1246 1247 /* CCE */ 1248 #define CCE_PERF_DEV_CNTR_ELEM(name, counter, flags) \ 1249 CNTR_ELEM(#name, \ 1250 (counter * 8 + CCE_COUNTER_ARRAY32), \ 1251 0, flags | CNTR_32BIT, \ 1252 dev_access_u32_csr) 1253 1254 #define CCE_INT_DEV_CNTR_ELEM(name, counter, flags) \ 1255 CNTR_ELEM(#name, \ 1256 (counter * 8 + CCE_INT_COUNTER_ARRAY32), \ 1257 0, flags | CNTR_32BIT, \ 1258 dev_access_u32_csr) 1259 1260 /* DC */ 1261 #define DC_PERF_CNTR(name, counter, flags) \ 1262 CNTR_ELEM(#name, \ 1263 counter, \ 1264 0, \ 1265 flags, \ 1266 dev_access_u64_csr) 1267 1268 #define DC_PERF_CNTR_LCB(name, counter, flags) \ 1269 CNTR_ELEM(#name, \ 1270 counter, \ 1271 0, \ 1272 flags, \ 1273 dc_access_lcb_cntr) 1274 1275 /* ibp counters */ 1276 #define SW_IBP_CNTR(name, cntr) \ 1277 CNTR_ELEM(#name, \ 1278 0, \ 1279 0, \ 1280 CNTR_SYNTH, \ 1281 access_ibp_##cntr) 1282 1283 /** 1284 * hfi1_addr_from_offset - return addr for readq/writeq 1285 * @dd: the dd device 1286 * @offset: the offset of the CSR within bar0 1287 * 1288 * This routine selects the appropriate base address 1289 * based on the indicated offset. 1290 */ 1291 static inline void __iomem *hfi1_addr_from_offset( 1292 const struct hfi1_devdata *dd, 1293 u32 offset) 1294 { 1295 if (offset >= dd->base2_start) 1296 return dd->kregbase2 + (offset - dd->base2_start); 1297 return dd->kregbase1 + offset; 1298 } 1299 1300 /** 1301 * read_csr - read CSR at the indicated offset 1302 * @dd: the dd device 1303 * @offset: the offset of the CSR within bar0 1304 * 1305 * Return: the value read or all FF's if there 1306 * is no mapping 1307 */ 1308 u64 read_csr(const struct hfi1_devdata *dd, u32 offset) 1309 { 1310 if (dd->flags & HFI1_PRESENT) 1311 return readq(hfi1_addr_from_offset(dd, offset)); 1312 return -1; 1313 } 1314 1315 /** 1316 * write_csr - write CSR at the indicated offset 1317 * @dd: the dd device 1318 * @offset: the offset of the CSR within bar0 1319 * @value: value to write 1320 */ 1321 void write_csr(const struct hfi1_devdata *dd, u32 offset, u64 value) 1322 { 1323 if (dd->flags & HFI1_PRESENT) { 1324 void __iomem *base = hfi1_addr_from_offset(dd, offset); 1325 1326 /* avoid write to RcvArray */ 1327 if (WARN_ON(offset >= RCV_ARRAY && offset < dd->base2_start)) 1328 return; 1329 writeq(value, base); 1330 } 1331 } 1332 1333 /** 1334 * get_csr_addr - return te iomem address for offset 1335 * @dd: the dd device 1336 * @offset: the offset of the CSR within bar0 1337 * 1338 * Return: The iomem address to use in subsequent 1339 * writeq/readq operations. 1340 */ 1341 void __iomem *get_csr_addr( 1342 const struct hfi1_devdata *dd, 1343 u32 offset) 1344 { 1345 if (dd->flags & HFI1_PRESENT) 1346 return hfi1_addr_from_offset(dd, offset); 1347 return NULL; 1348 } 1349 1350 static inline u64 read_write_csr(const struct hfi1_devdata *dd, u32 csr, 1351 int mode, u64 value) 1352 { 1353 u64 ret; 1354 1355 if (mode == CNTR_MODE_R) { 1356 ret = read_csr(dd, csr); 1357 } else if (mode == CNTR_MODE_W) { 1358 write_csr(dd, csr, value); 1359 ret = value; 1360 } else { 1361 dd_dev_err(dd, "Invalid cntr register access mode"); 1362 return 0; 1363 } 1364 1365 hfi1_cdbg(CNTR, "csr 0x%x val 0x%llx mode %d", csr, ret, mode); 1366 return ret; 1367 } 1368 1369 /* Dev Access */ 1370 static u64 dev_access_u32_csr(const struct cntr_entry *entry, 1371 void *context, int vl, int mode, u64 data) 1372 { 1373 struct hfi1_devdata *dd = context; 1374 u64 csr = entry->csr; 1375 1376 if (entry->flags & CNTR_SDMA) { 1377 if (vl == CNTR_INVALID_VL) 1378 return 0; 1379 csr += 0x100 * vl; 1380 } else { 1381 if (vl != CNTR_INVALID_VL) 1382 return 0; 1383 } 1384 return read_write_csr(dd, csr, mode, data); 1385 } 1386 1387 static u64 access_sde_err_cnt(const struct cntr_entry *entry, 1388 void *context, int idx, int mode, u64 data) 1389 { 1390 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1391 1392 if (dd->per_sdma && idx < dd->num_sdma) 1393 return dd->per_sdma[idx].err_cnt; 1394 return 0; 1395 } 1396 1397 static u64 access_sde_int_cnt(const struct cntr_entry *entry, 1398 void *context, int idx, int mode, u64 data) 1399 { 1400 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1401 1402 if (dd->per_sdma && idx < dd->num_sdma) 1403 return dd->per_sdma[idx].sdma_int_cnt; 1404 return 0; 1405 } 1406 1407 static u64 access_sde_idle_int_cnt(const struct cntr_entry *entry, 1408 void *context, int idx, int mode, u64 data) 1409 { 1410 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1411 1412 if (dd->per_sdma && idx < dd->num_sdma) 1413 return dd->per_sdma[idx].idle_int_cnt; 1414 return 0; 1415 } 1416 1417 static u64 access_sde_progress_int_cnt(const struct cntr_entry *entry, 1418 void *context, int idx, int mode, 1419 u64 data) 1420 { 1421 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1422 1423 if (dd->per_sdma && idx < dd->num_sdma) 1424 return dd->per_sdma[idx].progress_int_cnt; 1425 return 0; 1426 } 1427 1428 static u64 dev_access_u64_csr(const struct cntr_entry *entry, void *context, 1429 int vl, int mode, u64 data) 1430 { 1431 struct hfi1_devdata *dd = context; 1432 1433 u64 val = 0; 1434 u64 csr = entry->csr; 1435 1436 if (entry->flags & CNTR_VL) { 1437 if (vl == CNTR_INVALID_VL) 1438 return 0; 1439 csr += 8 * vl; 1440 } else { 1441 if (vl != CNTR_INVALID_VL) 1442 return 0; 1443 } 1444 1445 val = read_write_csr(dd, csr, mode, data); 1446 return val; 1447 } 1448 1449 static u64 dc_access_lcb_cntr(const struct cntr_entry *entry, void *context, 1450 int vl, int mode, u64 data) 1451 { 1452 struct hfi1_devdata *dd = context; 1453 u32 csr = entry->csr; 1454 int ret = 0; 1455 1456 if (vl != CNTR_INVALID_VL) 1457 return 0; 1458 if (mode == CNTR_MODE_R) 1459 ret = read_lcb_csr(dd, csr, &data); 1460 else if (mode == CNTR_MODE_W) 1461 ret = write_lcb_csr(dd, csr, data); 1462 1463 if (ret) { 1464 dd_dev_err(dd, "Could not acquire LCB for counter 0x%x", csr); 1465 return 0; 1466 } 1467 1468 hfi1_cdbg(CNTR, "csr 0x%x val 0x%llx mode %d", csr, data, mode); 1469 return data; 1470 } 1471 1472 /* Port Access */ 1473 static u64 port_access_u32_csr(const struct cntr_entry *entry, void *context, 1474 int vl, int mode, u64 data) 1475 { 1476 struct hfi1_pportdata *ppd = context; 1477 1478 if (vl != CNTR_INVALID_VL) 1479 return 0; 1480 return read_write_csr(ppd->dd, entry->csr, mode, data); 1481 } 1482 1483 static u64 port_access_u64_csr(const struct cntr_entry *entry, 1484 void *context, int vl, int mode, u64 data) 1485 { 1486 struct hfi1_pportdata *ppd = context; 1487 u64 val; 1488 u64 csr = entry->csr; 1489 1490 if (entry->flags & CNTR_VL) { 1491 if (vl == CNTR_INVALID_VL) 1492 return 0; 1493 csr += 8 * vl; 1494 } else { 1495 if (vl != CNTR_INVALID_VL) 1496 return 0; 1497 } 1498 val = read_write_csr(ppd->dd, csr, mode, data); 1499 return val; 1500 } 1501 1502 /* Software defined */ 1503 static inline u64 read_write_sw(struct hfi1_devdata *dd, u64 *cntr, int mode, 1504 u64 data) 1505 { 1506 u64 ret; 1507 1508 if (mode == CNTR_MODE_R) { 1509 ret = *cntr; 1510 } else if (mode == CNTR_MODE_W) { 1511 *cntr = data; 1512 ret = data; 1513 } else { 1514 dd_dev_err(dd, "Invalid cntr sw access mode"); 1515 return 0; 1516 } 1517 1518 hfi1_cdbg(CNTR, "val 0x%llx mode %d", ret, mode); 1519 1520 return ret; 1521 } 1522 1523 static u64 access_sw_link_dn_cnt(const struct cntr_entry *entry, void *context, 1524 int vl, int mode, u64 data) 1525 { 1526 struct hfi1_pportdata *ppd = context; 1527 1528 if (vl != CNTR_INVALID_VL) 1529 return 0; 1530 return read_write_sw(ppd->dd, &ppd->link_downed, mode, data); 1531 } 1532 1533 static u64 access_sw_link_up_cnt(const struct cntr_entry *entry, void *context, 1534 int vl, int mode, u64 data) 1535 { 1536 struct hfi1_pportdata *ppd = context; 1537 1538 if (vl != CNTR_INVALID_VL) 1539 return 0; 1540 return read_write_sw(ppd->dd, &ppd->link_up, mode, data); 1541 } 1542 1543 static u64 access_sw_unknown_frame_cnt(const struct cntr_entry *entry, 1544 void *context, int vl, int mode, 1545 u64 data) 1546 { 1547 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; 1548 1549 if (vl != CNTR_INVALID_VL) 1550 return 0; 1551 return read_write_sw(ppd->dd, &ppd->unknown_frame_count, mode, data); 1552 } 1553 1554 static u64 access_sw_xmit_discards(const struct cntr_entry *entry, 1555 void *context, int vl, int mode, u64 data) 1556 { 1557 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; 1558 u64 zero = 0; 1559 u64 *counter; 1560 1561 if (vl == CNTR_INVALID_VL) 1562 counter = &ppd->port_xmit_discards; 1563 else if (vl >= 0 && vl < C_VL_COUNT) 1564 counter = &ppd->port_xmit_discards_vl[vl]; 1565 else 1566 counter = &zero; 1567 1568 return read_write_sw(ppd->dd, counter, mode, data); 1569 } 1570 1571 static u64 access_xmit_constraint_errs(const struct cntr_entry *entry, 1572 void *context, int vl, int mode, 1573 u64 data) 1574 { 1575 struct hfi1_pportdata *ppd = context; 1576 1577 if (vl != CNTR_INVALID_VL) 1578 return 0; 1579 1580 return read_write_sw(ppd->dd, &ppd->port_xmit_constraint_errors, 1581 mode, data); 1582 } 1583 1584 static u64 access_rcv_constraint_errs(const struct cntr_entry *entry, 1585 void *context, int vl, int mode, u64 data) 1586 { 1587 struct hfi1_pportdata *ppd = context; 1588 1589 if (vl != CNTR_INVALID_VL) 1590 return 0; 1591 1592 return read_write_sw(ppd->dd, &ppd->port_rcv_constraint_errors, 1593 mode, data); 1594 } 1595 1596 u64 get_all_cpu_total(u64 __percpu *cntr) 1597 { 1598 int cpu; 1599 u64 counter = 0; 1600 1601 for_each_possible_cpu(cpu) 1602 counter += *per_cpu_ptr(cntr, cpu); 1603 return counter; 1604 } 1605 1606 static u64 read_write_cpu(struct hfi1_devdata *dd, u64 *z_val, 1607 u64 __percpu *cntr, 1608 int vl, int mode, u64 data) 1609 { 1610 u64 ret = 0; 1611 1612 if (vl != CNTR_INVALID_VL) 1613 return 0; 1614 1615 if (mode == CNTR_MODE_R) { 1616 ret = get_all_cpu_total(cntr) - *z_val; 1617 } else if (mode == CNTR_MODE_W) { 1618 /* A write can only zero the counter */ 1619 if (data == 0) 1620 *z_val = get_all_cpu_total(cntr); 1621 else 1622 dd_dev_err(dd, "Per CPU cntrs can only be zeroed"); 1623 } else { 1624 dd_dev_err(dd, "Invalid cntr sw cpu access mode"); 1625 return 0; 1626 } 1627 1628 return ret; 1629 } 1630 1631 static u64 access_sw_cpu_intr(const struct cntr_entry *entry, 1632 void *context, int vl, int mode, u64 data) 1633 { 1634 struct hfi1_devdata *dd = context; 1635 1636 return read_write_cpu(dd, &dd->z_int_counter, dd->int_counter, vl, 1637 mode, data); 1638 } 1639 1640 static u64 access_sw_cpu_rcv_limit(const struct cntr_entry *entry, 1641 void *context, int vl, int mode, u64 data) 1642 { 1643 struct hfi1_devdata *dd = context; 1644 1645 return read_write_cpu(dd, &dd->z_rcv_limit, dd->rcv_limit, vl, 1646 mode, data); 1647 } 1648 1649 static u64 access_sw_pio_wait(const struct cntr_entry *entry, 1650 void *context, int vl, int mode, u64 data) 1651 { 1652 struct hfi1_devdata *dd = context; 1653 1654 return dd->verbs_dev.n_piowait; 1655 } 1656 1657 static u64 access_sw_pio_drain(const struct cntr_entry *entry, 1658 void *context, int vl, int mode, u64 data) 1659 { 1660 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1661 1662 return dd->verbs_dev.n_piodrain; 1663 } 1664 1665 static u64 access_sw_ctx0_seq_drop(const struct cntr_entry *entry, 1666 void *context, int vl, int mode, u64 data) 1667 { 1668 struct hfi1_devdata *dd = context; 1669 1670 return dd->ctx0_seq_drop; 1671 } 1672 1673 static u64 access_sw_vtx_wait(const struct cntr_entry *entry, 1674 void *context, int vl, int mode, u64 data) 1675 { 1676 struct hfi1_devdata *dd = context; 1677 1678 return dd->verbs_dev.n_txwait; 1679 } 1680 1681 static u64 access_sw_kmem_wait(const struct cntr_entry *entry, 1682 void *context, int vl, int mode, u64 data) 1683 { 1684 struct hfi1_devdata *dd = context; 1685 1686 return dd->verbs_dev.n_kmem_wait; 1687 } 1688 1689 static u64 access_sw_send_schedule(const struct cntr_entry *entry, 1690 void *context, int vl, int mode, u64 data) 1691 { 1692 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1693 1694 return read_write_cpu(dd, &dd->z_send_schedule, dd->send_schedule, vl, 1695 mode, data); 1696 } 1697 1698 /* Software counters for the error status bits within MISC_ERR_STATUS */ 1699 static u64 access_misc_pll_lock_fail_err_cnt(const struct cntr_entry *entry, 1700 void *context, int vl, int mode, 1701 u64 data) 1702 { 1703 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1704 1705 return dd->misc_err_status_cnt[12]; 1706 } 1707 1708 static u64 access_misc_mbist_fail_err_cnt(const struct cntr_entry *entry, 1709 void *context, int vl, int mode, 1710 u64 data) 1711 { 1712 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1713 1714 return dd->misc_err_status_cnt[11]; 1715 } 1716 1717 static u64 access_misc_invalid_eep_cmd_err_cnt(const struct cntr_entry *entry, 1718 void *context, int vl, int mode, 1719 u64 data) 1720 { 1721 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1722 1723 return dd->misc_err_status_cnt[10]; 1724 } 1725 1726 static u64 access_misc_efuse_done_parity_err_cnt(const struct cntr_entry *entry, 1727 void *context, int vl, 1728 int mode, u64 data) 1729 { 1730 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1731 1732 return dd->misc_err_status_cnt[9]; 1733 } 1734 1735 static u64 access_misc_efuse_write_err_cnt(const struct cntr_entry *entry, 1736 void *context, int vl, int mode, 1737 u64 data) 1738 { 1739 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1740 1741 return dd->misc_err_status_cnt[8]; 1742 } 1743 1744 static u64 access_misc_efuse_read_bad_addr_err_cnt( 1745 const struct cntr_entry *entry, 1746 void *context, int vl, int mode, u64 data) 1747 { 1748 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1749 1750 return dd->misc_err_status_cnt[7]; 1751 } 1752 1753 static u64 access_misc_efuse_csr_parity_err_cnt(const struct cntr_entry *entry, 1754 void *context, int vl, 1755 int mode, u64 data) 1756 { 1757 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1758 1759 return dd->misc_err_status_cnt[6]; 1760 } 1761 1762 static u64 access_misc_fw_auth_failed_err_cnt(const struct cntr_entry *entry, 1763 void *context, int vl, int mode, 1764 u64 data) 1765 { 1766 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1767 1768 return dd->misc_err_status_cnt[5]; 1769 } 1770 1771 static u64 access_misc_key_mismatch_err_cnt(const struct cntr_entry *entry, 1772 void *context, int vl, int mode, 1773 u64 data) 1774 { 1775 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1776 1777 return dd->misc_err_status_cnt[4]; 1778 } 1779 1780 static u64 access_misc_sbus_write_failed_err_cnt(const struct cntr_entry *entry, 1781 void *context, int vl, 1782 int mode, u64 data) 1783 { 1784 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1785 1786 return dd->misc_err_status_cnt[3]; 1787 } 1788 1789 static u64 access_misc_csr_write_bad_addr_err_cnt( 1790 const struct cntr_entry *entry, 1791 void *context, int vl, int mode, u64 data) 1792 { 1793 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1794 1795 return dd->misc_err_status_cnt[2]; 1796 } 1797 1798 static u64 access_misc_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 1799 void *context, int vl, 1800 int mode, u64 data) 1801 { 1802 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1803 1804 return dd->misc_err_status_cnt[1]; 1805 } 1806 1807 static u64 access_misc_csr_parity_err_cnt(const struct cntr_entry *entry, 1808 void *context, int vl, int mode, 1809 u64 data) 1810 { 1811 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1812 1813 return dd->misc_err_status_cnt[0]; 1814 } 1815 1816 /* 1817 * Software counter for the aggregate of 1818 * individual CceErrStatus counters 1819 */ 1820 static u64 access_sw_cce_err_status_aggregated_cnt( 1821 const struct cntr_entry *entry, 1822 void *context, int vl, int mode, u64 data) 1823 { 1824 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1825 1826 return dd->sw_cce_err_status_aggregate; 1827 } 1828 1829 /* 1830 * Software counters corresponding to each of the 1831 * error status bits within CceErrStatus 1832 */ 1833 static u64 access_cce_msix_csr_parity_err_cnt(const struct cntr_entry *entry, 1834 void *context, int vl, int mode, 1835 u64 data) 1836 { 1837 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1838 1839 return dd->cce_err_status_cnt[40]; 1840 } 1841 1842 static u64 access_cce_int_map_unc_err_cnt(const struct cntr_entry *entry, 1843 void *context, int vl, int mode, 1844 u64 data) 1845 { 1846 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1847 1848 return dd->cce_err_status_cnt[39]; 1849 } 1850 1851 static u64 access_cce_int_map_cor_err_cnt(const struct cntr_entry *entry, 1852 void *context, int vl, int mode, 1853 u64 data) 1854 { 1855 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1856 1857 return dd->cce_err_status_cnt[38]; 1858 } 1859 1860 static u64 access_cce_msix_table_unc_err_cnt(const struct cntr_entry *entry, 1861 void *context, int vl, int mode, 1862 u64 data) 1863 { 1864 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1865 1866 return dd->cce_err_status_cnt[37]; 1867 } 1868 1869 static u64 access_cce_msix_table_cor_err_cnt(const struct cntr_entry *entry, 1870 void *context, int vl, int mode, 1871 u64 data) 1872 { 1873 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1874 1875 return dd->cce_err_status_cnt[36]; 1876 } 1877 1878 static u64 access_cce_rxdma_conv_fifo_parity_err_cnt( 1879 const struct cntr_entry *entry, 1880 void *context, int vl, int mode, u64 data) 1881 { 1882 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1883 1884 return dd->cce_err_status_cnt[35]; 1885 } 1886 1887 static u64 access_cce_rcpl_async_fifo_parity_err_cnt( 1888 const struct cntr_entry *entry, 1889 void *context, int vl, int mode, u64 data) 1890 { 1891 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1892 1893 return dd->cce_err_status_cnt[34]; 1894 } 1895 1896 static u64 access_cce_seg_write_bad_addr_err_cnt(const struct cntr_entry *entry, 1897 void *context, int vl, 1898 int mode, u64 data) 1899 { 1900 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1901 1902 return dd->cce_err_status_cnt[33]; 1903 } 1904 1905 static u64 access_cce_seg_read_bad_addr_err_cnt(const struct cntr_entry *entry, 1906 void *context, int vl, int mode, 1907 u64 data) 1908 { 1909 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1910 1911 return dd->cce_err_status_cnt[32]; 1912 } 1913 1914 static u64 access_la_triggered_cnt(const struct cntr_entry *entry, 1915 void *context, int vl, int mode, u64 data) 1916 { 1917 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1918 1919 return dd->cce_err_status_cnt[31]; 1920 } 1921 1922 static u64 access_cce_trgt_cpl_timeout_err_cnt(const struct cntr_entry *entry, 1923 void *context, int vl, int mode, 1924 u64 data) 1925 { 1926 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1927 1928 return dd->cce_err_status_cnt[30]; 1929 } 1930 1931 static u64 access_pcic_receive_parity_err_cnt(const struct cntr_entry *entry, 1932 void *context, int vl, int mode, 1933 u64 data) 1934 { 1935 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1936 1937 return dd->cce_err_status_cnt[29]; 1938 } 1939 1940 static u64 access_pcic_transmit_back_parity_err_cnt( 1941 const struct cntr_entry *entry, 1942 void *context, int vl, int mode, u64 data) 1943 { 1944 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1945 1946 return dd->cce_err_status_cnt[28]; 1947 } 1948 1949 static u64 access_pcic_transmit_front_parity_err_cnt( 1950 const struct cntr_entry *entry, 1951 void *context, int vl, int mode, u64 data) 1952 { 1953 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1954 1955 return dd->cce_err_status_cnt[27]; 1956 } 1957 1958 static u64 access_pcic_cpl_dat_q_unc_err_cnt(const struct cntr_entry *entry, 1959 void *context, int vl, int mode, 1960 u64 data) 1961 { 1962 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1963 1964 return dd->cce_err_status_cnt[26]; 1965 } 1966 1967 static u64 access_pcic_cpl_hd_q_unc_err_cnt(const struct cntr_entry *entry, 1968 void *context, int vl, int mode, 1969 u64 data) 1970 { 1971 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1972 1973 return dd->cce_err_status_cnt[25]; 1974 } 1975 1976 static u64 access_pcic_post_dat_q_unc_err_cnt(const struct cntr_entry *entry, 1977 void *context, int vl, int mode, 1978 u64 data) 1979 { 1980 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1981 1982 return dd->cce_err_status_cnt[24]; 1983 } 1984 1985 static u64 access_pcic_post_hd_q_unc_err_cnt(const struct cntr_entry *entry, 1986 void *context, int vl, int mode, 1987 u64 data) 1988 { 1989 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1990 1991 return dd->cce_err_status_cnt[23]; 1992 } 1993 1994 static u64 access_pcic_retry_sot_mem_unc_err_cnt(const struct cntr_entry *entry, 1995 void *context, int vl, 1996 int mode, u64 data) 1997 { 1998 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1999 2000 return dd->cce_err_status_cnt[22]; 2001 } 2002 2003 static u64 access_pcic_retry_mem_unc_err(const struct cntr_entry *entry, 2004 void *context, int vl, int mode, 2005 u64 data) 2006 { 2007 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2008 2009 return dd->cce_err_status_cnt[21]; 2010 } 2011 2012 static u64 access_pcic_n_post_dat_q_parity_err_cnt( 2013 const struct cntr_entry *entry, 2014 void *context, int vl, int mode, u64 data) 2015 { 2016 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2017 2018 return dd->cce_err_status_cnt[20]; 2019 } 2020 2021 static u64 access_pcic_n_post_h_q_parity_err_cnt(const struct cntr_entry *entry, 2022 void *context, int vl, 2023 int mode, u64 data) 2024 { 2025 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2026 2027 return dd->cce_err_status_cnt[19]; 2028 } 2029 2030 static u64 access_pcic_cpl_dat_q_cor_err_cnt(const struct cntr_entry *entry, 2031 void *context, int vl, int mode, 2032 u64 data) 2033 { 2034 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2035 2036 return dd->cce_err_status_cnt[18]; 2037 } 2038 2039 static u64 access_pcic_cpl_hd_q_cor_err_cnt(const struct cntr_entry *entry, 2040 void *context, int vl, int mode, 2041 u64 data) 2042 { 2043 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2044 2045 return dd->cce_err_status_cnt[17]; 2046 } 2047 2048 static u64 access_pcic_post_dat_q_cor_err_cnt(const struct cntr_entry *entry, 2049 void *context, int vl, int mode, 2050 u64 data) 2051 { 2052 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2053 2054 return dd->cce_err_status_cnt[16]; 2055 } 2056 2057 static u64 access_pcic_post_hd_q_cor_err_cnt(const struct cntr_entry *entry, 2058 void *context, int vl, int mode, 2059 u64 data) 2060 { 2061 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2062 2063 return dd->cce_err_status_cnt[15]; 2064 } 2065 2066 static u64 access_pcic_retry_sot_mem_cor_err_cnt(const struct cntr_entry *entry, 2067 void *context, int vl, 2068 int mode, u64 data) 2069 { 2070 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2071 2072 return dd->cce_err_status_cnt[14]; 2073 } 2074 2075 static u64 access_pcic_retry_mem_cor_err_cnt(const struct cntr_entry *entry, 2076 void *context, int vl, int mode, 2077 u64 data) 2078 { 2079 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2080 2081 return dd->cce_err_status_cnt[13]; 2082 } 2083 2084 static u64 access_cce_cli1_async_fifo_dbg_parity_err_cnt( 2085 const struct cntr_entry *entry, 2086 void *context, int vl, int mode, u64 data) 2087 { 2088 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2089 2090 return dd->cce_err_status_cnt[12]; 2091 } 2092 2093 static u64 access_cce_cli1_async_fifo_rxdma_parity_err_cnt( 2094 const struct cntr_entry *entry, 2095 void *context, int vl, int mode, u64 data) 2096 { 2097 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2098 2099 return dd->cce_err_status_cnt[11]; 2100 } 2101 2102 static u64 access_cce_cli1_async_fifo_sdma_hd_parity_err_cnt( 2103 const struct cntr_entry *entry, 2104 void *context, int vl, int mode, u64 data) 2105 { 2106 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2107 2108 return dd->cce_err_status_cnt[10]; 2109 } 2110 2111 static u64 access_cce_cl1_async_fifo_pio_crdt_parity_err_cnt( 2112 const struct cntr_entry *entry, 2113 void *context, int vl, int mode, u64 data) 2114 { 2115 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2116 2117 return dd->cce_err_status_cnt[9]; 2118 } 2119 2120 static u64 access_cce_cli2_async_fifo_parity_err_cnt( 2121 const struct cntr_entry *entry, 2122 void *context, int vl, int mode, u64 data) 2123 { 2124 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2125 2126 return dd->cce_err_status_cnt[8]; 2127 } 2128 2129 static u64 access_cce_csr_cfg_bus_parity_err_cnt(const struct cntr_entry *entry, 2130 void *context, int vl, 2131 int mode, u64 data) 2132 { 2133 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2134 2135 return dd->cce_err_status_cnt[7]; 2136 } 2137 2138 static u64 access_cce_cli0_async_fifo_parity_err_cnt( 2139 const struct cntr_entry *entry, 2140 void *context, int vl, int mode, u64 data) 2141 { 2142 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2143 2144 return dd->cce_err_status_cnt[6]; 2145 } 2146 2147 static u64 access_cce_rspd_data_parity_err_cnt(const struct cntr_entry *entry, 2148 void *context, int vl, int mode, 2149 u64 data) 2150 { 2151 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2152 2153 return dd->cce_err_status_cnt[5]; 2154 } 2155 2156 static u64 access_cce_trgt_access_err_cnt(const struct cntr_entry *entry, 2157 void *context, int vl, int mode, 2158 u64 data) 2159 { 2160 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2161 2162 return dd->cce_err_status_cnt[4]; 2163 } 2164 2165 static u64 access_cce_trgt_async_fifo_parity_err_cnt( 2166 const struct cntr_entry *entry, 2167 void *context, int vl, int mode, u64 data) 2168 { 2169 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2170 2171 return dd->cce_err_status_cnt[3]; 2172 } 2173 2174 static u64 access_cce_csr_write_bad_addr_err_cnt(const struct cntr_entry *entry, 2175 void *context, int vl, 2176 int mode, u64 data) 2177 { 2178 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2179 2180 return dd->cce_err_status_cnt[2]; 2181 } 2182 2183 static u64 access_cce_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 2184 void *context, int vl, 2185 int mode, u64 data) 2186 { 2187 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2188 2189 return dd->cce_err_status_cnt[1]; 2190 } 2191 2192 static u64 access_ccs_csr_parity_err_cnt(const struct cntr_entry *entry, 2193 void *context, int vl, int mode, 2194 u64 data) 2195 { 2196 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2197 2198 return dd->cce_err_status_cnt[0]; 2199 } 2200 2201 /* 2202 * Software counters corresponding to each of the 2203 * error status bits within RcvErrStatus 2204 */ 2205 static u64 access_rx_csr_parity_err_cnt(const struct cntr_entry *entry, 2206 void *context, int vl, int mode, 2207 u64 data) 2208 { 2209 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2210 2211 return dd->rcv_err_status_cnt[63]; 2212 } 2213 2214 static u64 access_rx_csr_write_bad_addr_err_cnt(const struct cntr_entry *entry, 2215 void *context, int vl, 2216 int mode, u64 data) 2217 { 2218 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2219 2220 return dd->rcv_err_status_cnt[62]; 2221 } 2222 2223 static u64 access_rx_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 2224 void *context, int vl, int mode, 2225 u64 data) 2226 { 2227 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2228 2229 return dd->rcv_err_status_cnt[61]; 2230 } 2231 2232 static u64 access_rx_dma_csr_unc_err_cnt(const struct cntr_entry *entry, 2233 void *context, int vl, int mode, 2234 u64 data) 2235 { 2236 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2237 2238 return dd->rcv_err_status_cnt[60]; 2239 } 2240 2241 static u64 access_rx_dma_dq_fsm_encoding_err_cnt(const struct cntr_entry *entry, 2242 void *context, int vl, 2243 int mode, u64 data) 2244 { 2245 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2246 2247 return dd->rcv_err_status_cnt[59]; 2248 } 2249 2250 static u64 access_rx_dma_eq_fsm_encoding_err_cnt(const struct cntr_entry *entry, 2251 void *context, int vl, 2252 int mode, u64 data) 2253 { 2254 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2255 2256 return dd->rcv_err_status_cnt[58]; 2257 } 2258 2259 static u64 access_rx_dma_csr_parity_err_cnt(const struct cntr_entry *entry, 2260 void *context, int vl, int mode, 2261 u64 data) 2262 { 2263 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2264 2265 return dd->rcv_err_status_cnt[57]; 2266 } 2267 2268 static u64 access_rx_rbuf_data_cor_err_cnt(const struct cntr_entry *entry, 2269 void *context, int vl, int mode, 2270 u64 data) 2271 { 2272 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2273 2274 return dd->rcv_err_status_cnt[56]; 2275 } 2276 2277 static u64 access_rx_rbuf_data_unc_err_cnt(const struct cntr_entry *entry, 2278 void *context, int vl, int mode, 2279 u64 data) 2280 { 2281 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2282 2283 return dd->rcv_err_status_cnt[55]; 2284 } 2285 2286 static u64 access_rx_dma_data_fifo_rd_cor_err_cnt( 2287 const struct cntr_entry *entry, 2288 void *context, int vl, int mode, u64 data) 2289 { 2290 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2291 2292 return dd->rcv_err_status_cnt[54]; 2293 } 2294 2295 static u64 access_rx_dma_data_fifo_rd_unc_err_cnt( 2296 const struct cntr_entry *entry, 2297 void *context, int vl, int mode, u64 data) 2298 { 2299 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2300 2301 return dd->rcv_err_status_cnt[53]; 2302 } 2303 2304 static u64 access_rx_dma_hdr_fifo_rd_cor_err_cnt(const struct cntr_entry *entry, 2305 void *context, int vl, 2306 int mode, u64 data) 2307 { 2308 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2309 2310 return dd->rcv_err_status_cnt[52]; 2311 } 2312 2313 static u64 access_rx_dma_hdr_fifo_rd_unc_err_cnt(const struct cntr_entry *entry, 2314 void *context, int vl, 2315 int mode, u64 data) 2316 { 2317 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2318 2319 return dd->rcv_err_status_cnt[51]; 2320 } 2321 2322 static u64 access_rx_rbuf_desc_part2_cor_err_cnt(const struct cntr_entry *entry, 2323 void *context, int vl, 2324 int mode, u64 data) 2325 { 2326 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2327 2328 return dd->rcv_err_status_cnt[50]; 2329 } 2330 2331 static u64 access_rx_rbuf_desc_part2_unc_err_cnt(const struct cntr_entry *entry, 2332 void *context, int vl, 2333 int mode, u64 data) 2334 { 2335 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2336 2337 return dd->rcv_err_status_cnt[49]; 2338 } 2339 2340 static u64 access_rx_rbuf_desc_part1_cor_err_cnt(const struct cntr_entry *entry, 2341 void *context, int vl, 2342 int mode, u64 data) 2343 { 2344 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2345 2346 return dd->rcv_err_status_cnt[48]; 2347 } 2348 2349 static u64 access_rx_rbuf_desc_part1_unc_err_cnt(const struct cntr_entry *entry, 2350 void *context, int vl, 2351 int mode, u64 data) 2352 { 2353 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2354 2355 return dd->rcv_err_status_cnt[47]; 2356 } 2357 2358 static u64 access_rx_hq_intr_fsm_err_cnt(const struct cntr_entry *entry, 2359 void *context, int vl, int mode, 2360 u64 data) 2361 { 2362 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2363 2364 return dd->rcv_err_status_cnt[46]; 2365 } 2366 2367 static u64 access_rx_hq_intr_csr_parity_err_cnt( 2368 const struct cntr_entry *entry, 2369 void *context, int vl, int mode, u64 data) 2370 { 2371 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2372 2373 return dd->rcv_err_status_cnt[45]; 2374 } 2375 2376 static u64 access_rx_lookup_csr_parity_err_cnt( 2377 const struct cntr_entry *entry, 2378 void *context, int vl, int mode, u64 data) 2379 { 2380 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2381 2382 return dd->rcv_err_status_cnt[44]; 2383 } 2384 2385 static u64 access_rx_lookup_rcv_array_cor_err_cnt( 2386 const struct cntr_entry *entry, 2387 void *context, int vl, int mode, u64 data) 2388 { 2389 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2390 2391 return dd->rcv_err_status_cnt[43]; 2392 } 2393 2394 static u64 access_rx_lookup_rcv_array_unc_err_cnt( 2395 const struct cntr_entry *entry, 2396 void *context, int vl, int mode, u64 data) 2397 { 2398 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2399 2400 return dd->rcv_err_status_cnt[42]; 2401 } 2402 2403 static u64 access_rx_lookup_des_part2_parity_err_cnt( 2404 const struct cntr_entry *entry, 2405 void *context, int vl, int mode, u64 data) 2406 { 2407 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2408 2409 return dd->rcv_err_status_cnt[41]; 2410 } 2411 2412 static u64 access_rx_lookup_des_part1_unc_cor_err_cnt( 2413 const struct cntr_entry *entry, 2414 void *context, int vl, int mode, u64 data) 2415 { 2416 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2417 2418 return dd->rcv_err_status_cnt[40]; 2419 } 2420 2421 static u64 access_rx_lookup_des_part1_unc_err_cnt( 2422 const struct cntr_entry *entry, 2423 void *context, int vl, int mode, u64 data) 2424 { 2425 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2426 2427 return dd->rcv_err_status_cnt[39]; 2428 } 2429 2430 static u64 access_rx_rbuf_next_free_buf_cor_err_cnt( 2431 const struct cntr_entry *entry, 2432 void *context, int vl, int mode, u64 data) 2433 { 2434 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2435 2436 return dd->rcv_err_status_cnt[38]; 2437 } 2438 2439 static u64 access_rx_rbuf_next_free_buf_unc_err_cnt( 2440 const struct cntr_entry *entry, 2441 void *context, int vl, int mode, u64 data) 2442 { 2443 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2444 2445 return dd->rcv_err_status_cnt[37]; 2446 } 2447 2448 static u64 access_rbuf_fl_init_wr_addr_parity_err_cnt( 2449 const struct cntr_entry *entry, 2450 void *context, int vl, int mode, u64 data) 2451 { 2452 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2453 2454 return dd->rcv_err_status_cnt[36]; 2455 } 2456 2457 static u64 access_rx_rbuf_fl_initdone_parity_err_cnt( 2458 const struct cntr_entry *entry, 2459 void *context, int vl, int mode, u64 data) 2460 { 2461 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2462 2463 return dd->rcv_err_status_cnt[35]; 2464 } 2465 2466 static u64 access_rx_rbuf_fl_write_addr_parity_err_cnt( 2467 const struct cntr_entry *entry, 2468 void *context, int vl, int mode, u64 data) 2469 { 2470 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2471 2472 return dd->rcv_err_status_cnt[34]; 2473 } 2474 2475 static u64 access_rx_rbuf_fl_rd_addr_parity_err_cnt( 2476 const struct cntr_entry *entry, 2477 void *context, int vl, int mode, u64 data) 2478 { 2479 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2480 2481 return dd->rcv_err_status_cnt[33]; 2482 } 2483 2484 static u64 access_rx_rbuf_empty_err_cnt(const struct cntr_entry *entry, 2485 void *context, int vl, int mode, 2486 u64 data) 2487 { 2488 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2489 2490 return dd->rcv_err_status_cnt[32]; 2491 } 2492 2493 static u64 access_rx_rbuf_full_err_cnt(const struct cntr_entry *entry, 2494 void *context, int vl, int mode, 2495 u64 data) 2496 { 2497 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2498 2499 return dd->rcv_err_status_cnt[31]; 2500 } 2501 2502 static u64 access_rbuf_bad_lookup_err_cnt(const struct cntr_entry *entry, 2503 void *context, int vl, int mode, 2504 u64 data) 2505 { 2506 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2507 2508 return dd->rcv_err_status_cnt[30]; 2509 } 2510 2511 static u64 access_rbuf_ctx_id_parity_err_cnt(const struct cntr_entry *entry, 2512 void *context, int vl, int mode, 2513 u64 data) 2514 { 2515 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2516 2517 return dd->rcv_err_status_cnt[29]; 2518 } 2519 2520 static u64 access_rbuf_csr_qeopdw_parity_err_cnt(const struct cntr_entry *entry, 2521 void *context, int vl, 2522 int mode, u64 data) 2523 { 2524 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2525 2526 return dd->rcv_err_status_cnt[28]; 2527 } 2528 2529 static u64 access_rx_rbuf_csr_q_num_of_pkt_parity_err_cnt( 2530 const struct cntr_entry *entry, 2531 void *context, int vl, int mode, u64 data) 2532 { 2533 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2534 2535 return dd->rcv_err_status_cnt[27]; 2536 } 2537 2538 static u64 access_rx_rbuf_csr_q_t1_ptr_parity_err_cnt( 2539 const struct cntr_entry *entry, 2540 void *context, int vl, int mode, u64 data) 2541 { 2542 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2543 2544 return dd->rcv_err_status_cnt[26]; 2545 } 2546 2547 static u64 access_rx_rbuf_csr_q_hd_ptr_parity_err_cnt( 2548 const struct cntr_entry *entry, 2549 void *context, int vl, int mode, u64 data) 2550 { 2551 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2552 2553 return dd->rcv_err_status_cnt[25]; 2554 } 2555 2556 static u64 access_rx_rbuf_csr_q_vld_bit_parity_err_cnt( 2557 const struct cntr_entry *entry, 2558 void *context, int vl, int mode, u64 data) 2559 { 2560 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2561 2562 return dd->rcv_err_status_cnt[24]; 2563 } 2564 2565 static u64 access_rx_rbuf_csr_q_next_buf_parity_err_cnt( 2566 const struct cntr_entry *entry, 2567 void *context, int vl, int mode, u64 data) 2568 { 2569 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2570 2571 return dd->rcv_err_status_cnt[23]; 2572 } 2573 2574 static u64 access_rx_rbuf_csr_q_ent_cnt_parity_err_cnt( 2575 const struct cntr_entry *entry, 2576 void *context, int vl, int mode, u64 data) 2577 { 2578 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2579 2580 return dd->rcv_err_status_cnt[22]; 2581 } 2582 2583 static u64 access_rx_rbuf_csr_q_head_buf_num_parity_err_cnt( 2584 const struct cntr_entry *entry, 2585 void *context, int vl, int mode, u64 data) 2586 { 2587 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2588 2589 return dd->rcv_err_status_cnt[21]; 2590 } 2591 2592 static u64 access_rx_rbuf_block_list_read_cor_err_cnt( 2593 const struct cntr_entry *entry, 2594 void *context, int vl, int mode, u64 data) 2595 { 2596 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2597 2598 return dd->rcv_err_status_cnt[20]; 2599 } 2600 2601 static u64 access_rx_rbuf_block_list_read_unc_err_cnt( 2602 const struct cntr_entry *entry, 2603 void *context, int vl, int mode, u64 data) 2604 { 2605 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2606 2607 return dd->rcv_err_status_cnt[19]; 2608 } 2609 2610 static u64 access_rx_rbuf_lookup_des_cor_err_cnt(const struct cntr_entry *entry, 2611 void *context, int vl, 2612 int mode, u64 data) 2613 { 2614 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2615 2616 return dd->rcv_err_status_cnt[18]; 2617 } 2618 2619 static u64 access_rx_rbuf_lookup_des_unc_err_cnt(const struct cntr_entry *entry, 2620 void *context, int vl, 2621 int mode, u64 data) 2622 { 2623 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2624 2625 return dd->rcv_err_status_cnt[17]; 2626 } 2627 2628 static u64 access_rx_rbuf_lookup_des_reg_unc_cor_err_cnt( 2629 const struct cntr_entry *entry, 2630 void *context, int vl, int mode, u64 data) 2631 { 2632 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2633 2634 return dd->rcv_err_status_cnt[16]; 2635 } 2636 2637 static u64 access_rx_rbuf_lookup_des_reg_unc_err_cnt( 2638 const struct cntr_entry *entry, 2639 void *context, int vl, int mode, u64 data) 2640 { 2641 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2642 2643 return dd->rcv_err_status_cnt[15]; 2644 } 2645 2646 static u64 access_rx_rbuf_free_list_cor_err_cnt(const struct cntr_entry *entry, 2647 void *context, int vl, 2648 int mode, u64 data) 2649 { 2650 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2651 2652 return dd->rcv_err_status_cnt[14]; 2653 } 2654 2655 static u64 access_rx_rbuf_free_list_unc_err_cnt(const struct cntr_entry *entry, 2656 void *context, int vl, 2657 int mode, u64 data) 2658 { 2659 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2660 2661 return dd->rcv_err_status_cnt[13]; 2662 } 2663 2664 static u64 access_rx_rcv_fsm_encoding_err_cnt(const struct cntr_entry *entry, 2665 void *context, int vl, int mode, 2666 u64 data) 2667 { 2668 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2669 2670 return dd->rcv_err_status_cnt[12]; 2671 } 2672 2673 static u64 access_rx_dma_flag_cor_err_cnt(const struct cntr_entry *entry, 2674 void *context, int vl, int mode, 2675 u64 data) 2676 { 2677 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2678 2679 return dd->rcv_err_status_cnt[11]; 2680 } 2681 2682 static u64 access_rx_dma_flag_unc_err_cnt(const struct cntr_entry *entry, 2683 void *context, int vl, int mode, 2684 u64 data) 2685 { 2686 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2687 2688 return dd->rcv_err_status_cnt[10]; 2689 } 2690 2691 static u64 access_rx_dc_sop_eop_parity_err_cnt(const struct cntr_entry *entry, 2692 void *context, int vl, int mode, 2693 u64 data) 2694 { 2695 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2696 2697 return dd->rcv_err_status_cnt[9]; 2698 } 2699 2700 static u64 access_rx_rcv_csr_parity_err_cnt(const struct cntr_entry *entry, 2701 void *context, int vl, int mode, 2702 u64 data) 2703 { 2704 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2705 2706 return dd->rcv_err_status_cnt[8]; 2707 } 2708 2709 static u64 access_rx_rcv_qp_map_table_cor_err_cnt( 2710 const struct cntr_entry *entry, 2711 void *context, int vl, int mode, u64 data) 2712 { 2713 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2714 2715 return dd->rcv_err_status_cnt[7]; 2716 } 2717 2718 static u64 access_rx_rcv_qp_map_table_unc_err_cnt( 2719 const struct cntr_entry *entry, 2720 void *context, int vl, int mode, u64 data) 2721 { 2722 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2723 2724 return dd->rcv_err_status_cnt[6]; 2725 } 2726 2727 static u64 access_rx_rcv_data_cor_err_cnt(const struct cntr_entry *entry, 2728 void *context, int vl, int mode, 2729 u64 data) 2730 { 2731 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2732 2733 return dd->rcv_err_status_cnt[5]; 2734 } 2735 2736 static u64 access_rx_rcv_data_unc_err_cnt(const struct cntr_entry *entry, 2737 void *context, int vl, int mode, 2738 u64 data) 2739 { 2740 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2741 2742 return dd->rcv_err_status_cnt[4]; 2743 } 2744 2745 static u64 access_rx_rcv_hdr_cor_err_cnt(const struct cntr_entry *entry, 2746 void *context, int vl, int mode, 2747 u64 data) 2748 { 2749 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2750 2751 return dd->rcv_err_status_cnt[3]; 2752 } 2753 2754 static u64 access_rx_rcv_hdr_unc_err_cnt(const struct cntr_entry *entry, 2755 void *context, int vl, int mode, 2756 u64 data) 2757 { 2758 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2759 2760 return dd->rcv_err_status_cnt[2]; 2761 } 2762 2763 static u64 access_rx_dc_intf_parity_err_cnt(const struct cntr_entry *entry, 2764 void *context, int vl, int mode, 2765 u64 data) 2766 { 2767 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2768 2769 return dd->rcv_err_status_cnt[1]; 2770 } 2771 2772 static u64 access_rx_dma_csr_cor_err_cnt(const struct cntr_entry *entry, 2773 void *context, int vl, int mode, 2774 u64 data) 2775 { 2776 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2777 2778 return dd->rcv_err_status_cnt[0]; 2779 } 2780 2781 /* 2782 * Software counters corresponding to each of the 2783 * error status bits within SendPioErrStatus 2784 */ 2785 static u64 access_pio_pec_sop_head_parity_err_cnt( 2786 const struct cntr_entry *entry, 2787 void *context, int vl, int mode, u64 data) 2788 { 2789 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2790 2791 return dd->send_pio_err_status_cnt[35]; 2792 } 2793 2794 static u64 access_pio_pcc_sop_head_parity_err_cnt( 2795 const struct cntr_entry *entry, 2796 void *context, int vl, int mode, u64 data) 2797 { 2798 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2799 2800 return dd->send_pio_err_status_cnt[34]; 2801 } 2802 2803 static u64 access_pio_last_returned_cnt_parity_err_cnt( 2804 const struct cntr_entry *entry, 2805 void *context, int vl, int mode, u64 data) 2806 { 2807 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2808 2809 return dd->send_pio_err_status_cnt[33]; 2810 } 2811 2812 static u64 access_pio_current_free_cnt_parity_err_cnt( 2813 const struct cntr_entry *entry, 2814 void *context, int vl, int mode, u64 data) 2815 { 2816 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2817 2818 return dd->send_pio_err_status_cnt[32]; 2819 } 2820 2821 static u64 access_pio_reserved_31_err_cnt(const struct cntr_entry *entry, 2822 void *context, int vl, int mode, 2823 u64 data) 2824 { 2825 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2826 2827 return dd->send_pio_err_status_cnt[31]; 2828 } 2829 2830 static u64 access_pio_reserved_30_err_cnt(const struct cntr_entry *entry, 2831 void *context, int vl, int mode, 2832 u64 data) 2833 { 2834 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2835 2836 return dd->send_pio_err_status_cnt[30]; 2837 } 2838 2839 static u64 access_pio_ppmc_sop_len_err_cnt(const struct cntr_entry *entry, 2840 void *context, int vl, int mode, 2841 u64 data) 2842 { 2843 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2844 2845 return dd->send_pio_err_status_cnt[29]; 2846 } 2847 2848 static u64 access_pio_ppmc_bqc_mem_parity_err_cnt( 2849 const struct cntr_entry *entry, 2850 void *context, int vl, int mode, u64 data) 2851 { 2852 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2853 2854 return dd->send_pio_err_status_cnt[28]; 2855 } 2856 2857 static u64 access_pio_vl_fifo_parity_err_cnt(const struct cntr_entry *entry, 2858 void *context, int vl, int mode, 2859 u64 data) 2860 { 2861 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2862 2863 return dd->send_pio_err_status_cnt[27]; 2864 } 2865 2866 static u64 access_pio_vlf_sop_parity_err_cnt(const struct cntr_entry *entry, 2867 void *context, int vl, int mode, 2868 u64 data) 2869 { 2870 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2871 2872 return dd->send_pio_err_status_cnt[26]; 2873 } 2874 2875 static u64 access_pio_vlf_v1_len_parity_err_cnt(const struct cntr_entry *entry, 2876 void *context, int vl, 2877 int mode, u64 data) 2878 { 2879 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2880 2881 return dd->send_pio_err_status_cnt[25]; 2882 } 2883 2884 static u64 access_pio_block_qw_count_parity_err_cnt( 2885 const struct cntr_entry *entry, 2886 void *context, int vl, int mode, u64 data) 2887 { 2888 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2889 2890 return dd->send_pio_err_status_cnt[24]; 2891 } 2892 2893 static u64 access_pio_write_qw_valid_parity_err_cnt( 2894 const struct cntr_entry *entry, 2895 void *context, int vl, int mode, u64 data) 2896 { 2897 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2898 2899 return dd->send_pio_err_status_cnt[23]; 2900 } 2901 2902 static u64 access_pio_state_machine_err_cnt(const struct cntr_entry *entry, 2903 void *context, int vl, int mode, 2904 u64 data) 2905 { 2906 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2907 2908 return dd->send_pio_err_status_cnt[22]; 2909 } 2910 2911 static u64 access_pio_write_data_parity_err_cnt(const struct cntr_entry *entry, 2912 void *context, int vl, 2913 int mode, u64 data) 2914 { 2915 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2916 2917 return dd->send_pio_err_status_cnt[21]; 2918 } 2919 2920 static u64 access_pio_host_addr_mem_cor_err_cnt(const struct cntr_entry *entry, 2921 void *context, int vl, 2922 int mode, u64 data) 2923 { 2924 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2925 2926 return dd->send_pio_err_status_cnt[20]; 2927 } 2928 2929 static u64 access_pio_host_addr_mem_unc_err_cnt(const struct cntr_entry *entry, 2930 void *context, int vl, 2931 int mode, u64 data) 2932 { 2933 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2934 2935 return dd->send_pio_err_status_cnt[19]; 2936 } 2937 2938 static u64 access_pio_pkt_evict_sm_or_arb_sm_err_cnt( 2939 const struct cntr_entry *entry, 2940 void *context, int vl, int mode, u64 data) 2941 { 2942 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2943 2944 return dd->send_pio_err_status_cnt[18]; 2945 } 2946 2947 static u64 access_pio_init_sm_in_err_cnt(const struct cntr_entry *entry, 2948 void *context, int vl, int mode, 2949 u64 data) 2950 { 2951 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2952 2953 return dd->send_pio_err_status_cnt[17]; 2954 } 2955 2956 static u64 access_pio_ppmc_pbl_fifo_err_cnt(const struct cntr_entry *entry, 2957 void *context, int vl, int mode, 2958 u64 data) 2959 { 2960 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2961 2962 return dd->send_pio_err_status_cnt[16]; 2963 } 2964 2965 static u64 access_pio_credit_ret_fifo_parity_err_cnt( 2966 const struct cntr_entry *entry, 2967 void *context, int vl, int mode, u64 data) 2968 { 2969 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2970 2971 return dd->send_pio_err_status_cnt[15]; 2972 } 2973 2974 static u64 access_pio_v1_len_mem_bank1_cor_err_cnt( 2975 const struct cntr_entry *entry, 2976 void *context, int vl, int mode, u64 data) 2977 { 2978 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2979 2980 return dd->send_pio_err_status_cnt[14]; 2981 } 2982 2983 static u64 access_pio_v1_len_mem_bank0_cor_err_cnt( 2984 const struct cntr_entry *entry, 2985 void *context, int vl, int mode, u64 data) 2986 { 2987 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2988 2989 return dd->send_pio_err_status_cnt[13]; 2990 } 2991 2992 static u64 access_pio_v1_len_mem_bank1_unc_err_cnt( 2993 const struct cntr_entry *entry, 2994 void *context, int vl, int mode, u64 data) 2995 { 2996 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2997 2998 return dd->send_pio_err_status_cnt[12]; 2999 } 3000 3001 static u64 access_pio_v1_len_mem_bank0_unc_err_cnt( 3002 const struct cntr_entry *entry, 3003 void *context, int vl, int mode, u64 data) 3004 { 3005 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3006 3007 return dd->send_pio_err_status_cnt[11]; 3008 } 3009 3010 static u64 access_pio_sm_pkt_reset_parity_err_cnt( 3011 const struct cntr_entry *entry, 3012 void *context, int vl, int mode, u64 data) 3013 { 3014 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3015 3016 return dd->send_pio_err_status_cnt[10]; 3017 } 3018 3019 static u64 access_pio_pkt_evict_fifo_parity_err_cnt( 3020 const struct cntr_entry *entry, 3021 void *context, int vl, int mode, u64 data) 3022 { 3023 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3024 3025 return dd->send_pio_err_status_cnt[9]; 3026 } 3027 3028 static u64 access_pio_sbrdctrl_crrel_fifo_parity_err_cnt( 3029 const struct cntr_entry *entry, 3030 void *context, int vl, int mode, u64 data) 3031 { 3032 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3033 3034 return dd->send_pio_err_status_cnt[8]; 3035 } 3036 3037 static u64 access_pio_sbrdctl_crrel_parity_err_cnt( 3038 const struct cntr_entry *entry, 3039 void *context, int vl, int mode, u64 data) 3040 { 3041 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3042 3043 return dd->send_pio_err_status_cnt[7]; 3044 } 3045 3046 static u64 access_pio_pec_fifo_parity_err_cnt(const struct cntr_entry *entry, 3047 void *context, int vl, int mode, 3048 u64 data) 3049 { 3050 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3051 3052 return dd->send_pio_err_status_cnt[6]; 3053 } 3054 3055 static u64 access_pio_pcc_fifo_parity_err_cnt(const struct cntr_entry *entry, 3056 void *context, int vl, int mode, 3057 u64 data) 3058 { 3059 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3060 3061 return dd->send_pio_err_status_cnt[5]; 3062 } 3063 3064 static u64 access_pio_sb_mem_fifo1_err_cnt(const struct cntr_entry *entry, 3065 void *context, int vl, int mode, 3066 u64 data) 3067 { 3068 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3069 3070 return dd->send_pio_err_status_cnt[4]; 3071 } 3072 3073 static u64 access_pio_sb_mem_fifo0_err_cnt(const struct cntr_entry *entry, 3074 void *context, int vl, int mode, 3075 u64 data) 3076 { 3077 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3078 3079 return dd->send_pio_err_status_cnt[3]; 3080 } 3081 3082 static u64 access_pio_csr_parity_err_cnt(const struct cntr_entry *entry, 3083 void *context, int vl, int mode, 3084 u64 data) 3085 { 3086 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3087 3088 return dd->send_pio_err_status_cnt[2]; 3089 } 3090 3091 static u64 access_pio_write_addr_parity_err_cnt(const struct cntr_entry *entry, 3092 void *context, int vl, 3093 int mode, u64 data) 3094 { 3095 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3096 3097 return dd->send_pio_err_status_cnt[1]; 3098 } 3099 3100 static u64 access_pio_write_bad_ctxt_err_cnt(const struct cntr_entry *entry, 3101 void *context, int vl, int mode, 3102 u64 data) 3103 { 3104 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3105 3106 return dd->send_pio_err_status_cnt[0]; 3107 } 3108 3109 /* 3110 * Software counters corresponding to each of the 3111 * error status bits within SendDmaErrStatus 3112 */ 3113 static u64 access_sdma_pcie_req_tracking_cor_err_cnt( 3114 const struct cntr_entry *entry, 3115 void *context, int vl, int mode, u64 data) 3116 { 3117 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3118 3119 return dd->send_dma_err_status_cnt[3]; 3120 } 3121 3122 static u64 access_sdma_pcie_req_tracking_unc_err_cnt( 3123 const struct cntr_entry *entry, 3124 void *context, int vl, int mode, u64 data) 3125 { 3126 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3127 3128 return dd->send_dma_err_status_cnt[2]; 3129 } 3130 3131 static u64 access_sdma_csr_parity_err_cnt(const struct cntr_entry *entry, 3132 void *context, int vl, int mode, 3133 u64 data) 3134 { 3135 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3136 3137 return dd->send_dma_err_status_cnt[1]; 3138 } 3139 3140 static u64 access_sdma_rpy_tag_err_cnt(const struct cntr_entry *entry, 3141 void *context, int vl, int mode, 3142 u64 data) 3143 { 3144 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3145 3146 return dd->send_dma_err_status_cnt[0]; 3147 } 3148 3149 /* 3150 * Software counters corresponding to each of the 3151 * error status bits within SendEgressErrStatus 3152 */ 3153 static u64 access_tx_read_pio_memory_csr_unc_err_cnt( 3154 const struct cntr_entry *entry, 3155 void *context, int vl, int mode, u64 data) 3156 { 3157 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3158 3159 return dd->send_egress_err_status_cnt[63]; 3160 } 3161 3162 static u64 access_tx_read_sdma_memory_csr_err_cnt( 3163 const struct cntr_entry *entry, 3164 void *context, int vl, int mode, u64 data) 3165 { 3166 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3167 3168 return dd->send_egress_err_status_cnt[62]; 3169 } 3170 3171 static u64 access_tx_egress_fifo_cor_err_cnt(const struct cntr_entry *entry, 3172 void *context, int vl, int mode, 3173 u64 data) 3174 { 3175 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3176 3177 return dd->send_egress_err_status_cnt[61]; 3178 } 3179 3180 static u64 access_tx_read_pio_memory_cor_err_cnt(const struct cntr_entry *entry, 3181 void *context, int vl, 3182 int mode, u64 data) 3183 { 3184 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3185 3186 return dd->send_egress_err_status_cnt[60]; 3187 } 3188 3189 static u64 access_tx_read_sdma_memory_cor_err_cnt( 3190 const struct cntr_entry *entry, 3191 void *context, int vl, int mode, u64 data) 3192 { 3193 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3194 3195 return dd->send_egress_err_status_cnt[59]; 3196 } 3197 3198 static u64 access_tx_sb_hdr_cor_err_cnt(const struct cntr_entry *entry, 3199 void *context, int vl, int mode, 3200 u64 data) 3201 { 3202 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3203 3204 return dd->send_egress_err_status_cnt[58]; 3205 } 3206 3207 static u64 access_tx_credit_overrun_err_cnt(const struct cntr_entry *entry, 3208 void *context, int vl, int mode, 3209 u64 data) 3210 { 3211 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3212 3213 return dd->send_egress_err_status_cnt[57]; 3214 } 3215 3216 static u64 access_tx_launch_fifo8_cor_err_cnt(const struct cntr_entry *entry, 3217 void *context, int vl, int mode, 3218 u64 data) 3219 { 3220 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3221 3222 return dd->send_egress_err_status_cnt[56]; 3223 } 3224 3225 static u64 access_tx_launch_fifo7_cor_err_cnt(const struct cntr_entry *entry, 3226 void *context, int vl, int mode, 3227 u64 data) 3228 { 3229 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3230 3231 return dd->send_egress_err_status_cnt[55]; 3232 } 3233 3234 static u64 access_tx_launch_fifo6_cor_err_cnt(const struct cntr_entry *entry, 3235 void *context, int vl, int mode, 3236 u64 data) 3237 { 3238 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3239 3240 return dd->send_egress_err_status_cnt[54]; 3241 } 3242 3243 static u64 access_tx_launch_fifo5_cor_err_cnt(const struct cntr_entry *entry, 3244 void *context, int vl, int mode, 3245 u64 data) 3246 { 3247 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3248 3249 return dd->send_egress_err_status_cnt[53]; 3250 } 3251 3252 static u64 access_tx_launch_fifo4_cor_err_cnt(const struct cntr_entry *entry, 3253 void *context, int vl, int mode, 3254 u64 data) 3255 { 3256 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3257 3258 return dd->send_egress_err_status_cnt[52]; 3259 } 3260 3261 static u64 access_tx_launch_fifo3_cor_err_cnt(const struct cntr_entry *entry, 3262 void *context, int vl, int mode, 3263 u64 data) 3264 { 3265 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3266 3267 return dd->send_egress_err_status_cnt[51]; 3268 } 3269 3270 static u64 access_tx_launch_fifo2_cor_err_cnt(const struct cntr_entry *entry, 3271 void *context, int vl, int mode, 3272 u64 data) 3273 { 3274 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3275 3276 return dd->send_egress_err_status_cnt[50]; 3277 } 3278 3279 static u64 access_tx_launch_fifo1_cor_err_cnt(const struct cntr_entry *entry, 3280 void *context, int vl, int mode, 3281 u64 data) 3282 { 3283 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3284 3285 return dd->send_egress_err_status_cnt[49]; 3286 } 3287 3288 static u64 access_tx_launch_fifo0_cor_err_cnt(const struct cntr_entry *entry, 3289 void *context, int vl, int mode, 3290 u64 data) 3291 { 3292 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3293 3294 return dd->send_egress_err_status_cnt[48]; 3295 } 3296 3297 static u64 access_tx_credit_return_vl_err_cnt(const struct cntr_entry *entry, 3298 void *context, int vl, int mode, 3299 u64 data) 3300 { 3301 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3302 3303 return dd->send_egress_err_status_cnt[47]; 3304 } 3305 3306 static u64 access_tx_hcrc_insertion_err_cnt(const struct cntr_entry *entry, 3307 void *context, int vl, int mode, 3308 u64 data) 3309 { 3310 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3311 3312 return dd->send_egress_err_status_cnt[46]; 3313 } 3314 3315 static u64 access_tx_egress_fifo_unc_err_cnt(const struct cntr_entry *entry, 3316 void *context, int vl, int mode, 3317 u64 data) 3318 { 3319 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3320 3321 return dd->send_egress_err_status_cnt[45]; 3322 } 3323 3324 static u64 access_tx_read_pio_memory_unc_err_cnt(const struct cntr_entry *entry, 3325 void *context, int vl, 3326 int mode, u64 data) 3327 { 3328 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3329 3330 return dd->send_egress_err_status_cnt[44]; 3331 } 3332 3333 static u64 access_tx_read_sdma_memory_unc_err_cnt( 3334 const struct cntr_entry *entry, 3335 void *context, int vl, int mode, u64 data) 3336 { 3337 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3338 3339 return dd->send_egress_err_status_cnt[43]; 3340 } 3341 3342 static u64 access_tx_sb_hdr_unc_err_cnt(const struct cntr_entry *entry, 3343 void *context, int vl, int mode, 3344 u64 data) 3345 { 3346 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3347 3348 return dd->send_egress_err_status_cnt[42]; 3349 } 3350 3351 static u64 access_tx_credit_return_partiy_err_cnt( 3352 const struct cntr_entry *entry, 3353 void *context, int vl, int mode, u64 data) 3354 { 3355 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3356 3357 return dd->send_egress_err_status_cnt[41]; 3358 } 3359 3360 static u64 access_tx_launch_fifo8_unc_or_parity_err_cnt( 3361 const struct cntr_entry *entry, 3362 void *context, int vl, int mode, u64 data) 3363 { 3364 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3365 3366 return dd->send_egress_err_status_cnt[40]; 3367 } 3368 3369 static u64 access_tx_launch_fifo7_unc_or_parity_err_cnt( 3370 const struct cntr_entry *entry, 3371 void *context, int vl, int mode, u64 data) 3372 { 3373 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3374 3375 return dd->send_egress_err_status_cnt[39]; 3376 } 3377 3378 static u64 access_tx_launch_fifo6_unc_or_parity_err_cnt( 3379 const struct cntr_entry *entry, 3380 void *context, int vl, int mode, u64 data) 3381 { 3382 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3383 3384 return dd->send_egress_err_status_cnt[38]; 3385 } 3386 3387 static u64 access_tx_launch_fifo5_unc_or_parity_err_cnt( 3388 const struct cntr_entry *entry, 3389 void *context, int vl, int mode, u64 data) 3390 { 3391 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3392 3393 return dd->send_egress_err_status_cnt[37]; 3394 } 3395 3396 static u64 access_tx_launch_fifo4_unc_or_parity_err_cnt( 3397 const struct cntr_entry *entry, 3398 void *context, int vl, int mode, u64 data) 3399 { 3400 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3401 3402 return dd->send_egress_err_status_cnt[36]; 3403 } 3404 3405 static u64 access_tx_launch_fifo3_unc_or_parity_err_cnt( 3406 const struct cntr_entry *entry, 3407 void *context, int vl, int mode, u64 data) 3408 { 3409 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3410 3411 return dd->send_egress_err_status_cnt[35]; 3412 } 3413 3414 static u64 access_tx_launch_fifo2_unc_or_parity_err_cnt( 3415 const struct cntr_entry *entry, 3416 void *context, int vl, int mode, u64 data) 3417 { 3418 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3419 3420 return dd->send_egress_err_status_cnt[34]; 3421 } 3422 3423 static u64 access_tx_launch_fifo1_unc_or_parity_err_cnt( 3424 const struct cntr_entry *entry, 3425 void *context, int vl, int mode, u64 data) 3426 { 3427 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3428 3429 return dd->send_egress_err_status_cnt[33]; 3430 } 3431 3432 static u64 access_tx_launch_fifo0_unc_or_parity_err_cnt( 3433 const struct cntr_entry *entry, 3434 void *context, int vl, int mode, u64 data) 3435 { 3436 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3437 3438 return dd->send_egress_err_status_cnt[32]; 3439 } 3440 3441 static u64 access_tx_sdma15_disallowed_packet_err_cnt( 3442 const struct cntr_entry *entry, 3443 void *context, int vl, int mode, u64 data) 3444 { 3445 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3446 3447 return dd->send_egress_err_status_cnt[31]; 3448 } 3449 3450 static u64 access_tx_sdma14_disallowed_packet_err_cnt( 3451 const struct cntr_entry *entry, 3452 void *context, int vl, int mode, u64 data) 3453 { 3454 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3455 3456 return dd->send_egress_err_status_cnt[30]; 3457 } 3458 3459 static u64 access_tx_sdma13_disallowed_packet_err_cnt( 3460 const struct cntr_entry *entry, 3461 void *context, int vl, int mode, u64 data) 3462 { 3463 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3464 3465 return dd->send_egress_err_status_cnt[29]; 3466 } 3467 3468 static u64 access_tx_sdma12_disallowed_packet_err_cnt( 3469 const struct cntr_entry *entry, 3470 void *context, int vl, int mode, u64 data) 3471 { 3472 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3473 3474 return dd->send_egress_err_status_cnt[28]; 3475 } 3476 3477 static u64 access_tx_sdma11_disallowed_packet_err_cnt( 3478 const struct cntr_entry *entry, 3479 void *context, int vl, int mode, u64 data) 3480 { 3481 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3482 3483 return dd->send_egress_err_status_cnt[27]; 3484 } 3485 3486 static u64 access_tx_sdma10_disallowed_packet_err_cnt( 3487 const struct cntr_entry *entry, 3488 void *context, int vl, int mode, u64 data) 3489 { 3490 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3491 3492 return dd->send_egress_err_status_cnt[26]; 3493 } 3494 3495 static u64 access_tx_sdma9_disallowed_packet_err_cnt( 3496 const struct cntr_entry *entry, 3497 void *context, int vl, int mode, u64 data) 3498 { 3499 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3500 3501 return dd->send_egress_err_status_cnt[25]; 3502 } 3503 3504 static u64 access_tx_sdma8_disallowed_packet_err_cnt( 3505 const struct cntr_entry *entry, 3506 void *context, int vl, int mode, u64 data) 3507 { 3508 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3509 3510 return dd->send_egress_err_status_cnt[24]; 3511 } 3512 3513 static u64 access_tx_sdma7_disallowed_packet_err_cnt( 3514 const struct cntr_entry *entry, 3515 void *context, int vl, int mode, u64 data) 3516 { 3517 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3518 3519 return dd->send_egress_err_status_cnt[23]; 3520 } 3521 3522 static u64 access_tx_sdma6_disallowed_packet_err_cnt( 3523 const struct cntr_entry *entry, 3524 void *context, int vl, int mode, u64 data) 3525 { 3526 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3527 3528 return dd->send_egress_err_status_cnt[22]; 3529 } 3530 3531 static u64 access_tx_sdma5_disallowed_packet_err_cnt( 3532 const struct cntr_entry *entry, 3533 void *context, int vl, int mode, u64 data) 3534 { 3535 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3536 3537 return dd->send_egress_err_status_cnt[21]; 3538 } 3539 3540 static u64 access_tx_sdma4_disallowed_packet_err_cnt( 3541 const struct cntr_entry *entry, 3542 void *context, int vl, int mode, u64 data) 3543 { 3544 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3545 3546 return dd->send_egress_err_status_cnt[20]; 3547 } 3548 3549 static u64 access_tx_sdma3_disallowed_packet_err_cnt( 3550 const struct cntr_entry *entry, 3551 void *context, int vl, int mode, u64 data) 3552 { 3553 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3554 3555 return dd->send_egress_err_status_cnt[19]; 3556 } 3557 3558 static u64 access_tx_sdma2_disallowed_packet_err_cnt( 3559 const struct cntr_entry *entry, 3560 void *context, int vl, int mode, u64 data) 3561 { 3562 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3563 3564 return dd->send_egress_err_status_cnt[18]; 3565 } 3566 3567 static u64 access_tx_sdma1_disallowed_packet_err_cnt( 3568 const struct cntr_entry *entry, 3569 void *context, int vl, int mode, u64 data) 3570 { 3571 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3572 3573 return dd->send_egress_err_status_cnt[17]; 3574 } 3575 3576 static u64 access_tx_sdma0_disallowed_packet_err_cnt( 3577 const struct cntr_entry *entry, 3578 void *context, int vl, int mode, u64 data) 3579 { 3580 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3581 3582 return dd->send_egress_err_status_cnt[16]; 3583 } 3584 3585 static u64 access_tx_config_parity_err_cnt(const struct cntr_entry *entry, 3586 void *context, int vl, int mode, 3587 u64 data) 3588 { 3589 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3590 3591 return dd->send_egress_err_status_cnt[15]; 3592 } 3593 3594 static u64 access_tx_sbrd_ctl_csr_parity_err_cnt(const struct cntr_entry *entry, 3595 void *context, int vl, 3596 int mode, u64 data) 3597 { 3598 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3599 3600 return dd->send_egress_err_status_cnt[14]; 3601 } 3602 3603 static u64 access_tx_launch_csr_parity_err_cnt(const struct cntr_entry *entry, 3604 void *context, int vl, int mode, 3605 u64 data) 3606 { 3607 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3608 3609 return dd->send_egress_err_status_cnt[13]; 3610 } 3611 3612 static u64 access_tx_illegal_vl_err_cnt(const struct cntr_entry *entry, 3613 void *context, int vl, int mode, 3614 u64 data) 3615 { 3616 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3617 3618 return dd->send_egress_err_status_cnt[12]; 3619 } 3620 3621 static u64 access_tx_sbrd_ctl_state_machine_parity_err_cnt( 3622 const struct cntr_entry *entry, 3623 void *context, int vl, int mode, u64 data) 3624 { 3625 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3626 3627 return dd->send_egress_err_status_cnt[11]; 3628 } 3629 3630 static u64 access_egress_reserved_10_err_cnt(const struct cntr_entry *entry, 3631 void *context, int vl, int mode, 3632 u64 data) 3633 { 3634 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3635 3636 return dd->send_egress_err_status_cnt[10]; 3637 } 3638 3639 static u64 access_egress_reserved_9_err_cnt(const struct cntr_entry *entry, 3640 void *context, int vl, int mode, 3641 u64 data) 3642 { 3643 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3644 3645 return dd->send_egress_err_status_cnt[9]; 3646 } 3647 3648 static u64 access_tx_sdma_launch_intf_parity_err_cnt( 3649 const struct cntr_entry *entry, 3650 void *context, int vl, int mode, u64 data) 3651 { 3652 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3653 3654 return dd->send_egress_err_status_cnt[8]; 3655 } 3656 3657 static u64 access_tx_pio_launch_intf_parity_err_cnt( 3658 const struct cntr_entry *entry, 3659 void *context, int vl, int mode, u64 data) 3660 { 3661 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3662 3663 return dd->send_egress_err_status_cnt[7]; 3664 } 3665 3666 static u64 access_egress_reserved_6_err_cnt(const struct cntr_entry *entry, 3667 void *context, int vl, int mode, 3668 u64 data) 3669 { 3670 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3671 3672 return dd->send_egress_err_status_cnt[6]; 3673 } 3674 3675 static u64 access_tx_incorrect_link_state_err_cnt( 3676 const struct cntr_entry *entry, 3677 void *context, int vl, int mode, u64 data) 3678 { 3679 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3680 3681 return dd->send_egress_err_status_cnt[5]; 3682 } 3683 3684 static u64 access_tx_linkdown_err_cnt(const struct cntr_entry *entry, 3685 void *context, int vl, int mode, 3686 u64 data) 3687 { 3688 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3689 3690 return dd->send_egress_err_status_cnt[4]; 3691 } 3692 3693 static u64 access_tx_egress_fifi_underrun_or_parity_err_cnt( 3694 const struct cntr_entry *entry, 3695 void *context, int vl, int mode, u64 data) 3696 { 3697 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3698 3699 return dd->send_egress_err_status_cnt[3]; 3700 } 3701 3702 static u64 access_egress_reserved_2_err_cnt(const struct cntr_entry *entry, 3703 void *context, int vl, int mode, 3704 u64 data) 3705 { 3706 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3707 3708 return dd->send_egress_err_status_cnt[2]; 3709 } 3710 3711 static u64 access_tx_pkt_integrity_mem_unc_err_cnt( 3712 const struct cntr_entry *entry, 3713 void *context, int vl, int mode, u64 data) 3714 { 3715 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3716 3717 return dd->send_egress_err_status_cnt[1]; 3718 } 3719 3720 static u64 access_tx_pkt_integrity_mem_cor_err_cnt( 3721 const struct cntr_entry *entry, 3722 void *context, int vl, int mode, u64 data) 3723 { 3724 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3725 3726 return dd->send_egress_err_status_cnt[0]; 3727 } 3728 3729 /* 3730 * Software counters corresponding to each of the 3731 * error status bits within SendErrStatus 3732 */ 3733 static u64 access_send_csr_write_bad_addr_err_cnt( 3734 const struct cntr_entry *entry, 3735 void *context, int vl, int mode, u64 data) 3736 { 3737 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3738 3739 return dd->send_err_status_cnt[2]; 3740 } 3741 3742 static u64 access_send_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 3743 void *context, int vl, 3744 int mode, u64 data) 3745 { 3746 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3747 3748 return dd->send_err_status_cnt[1]; 3749 } 3750 3751 static u64 access_send_csr_parity_cnt(const struct cntr_entry *entry, 3752 void *context, int vl, int mode, 3753 u64 data) 3754 { 3755 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3756 3757 return dd->send_err_status_cnt[0]; 3758 } 3759 3760 /* 3761 * Software counters corresponding to each of the 3762 * error status bits within SendCtxtErrStatus 3763 */ 3764 static u64 access_pio_write_out_of_bounds_err_cnt( 3765 const struct cntr_entry *entry, 3766 void *context, int vl, int mode, u64 data) 3767 { 3768 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3769 3770 return dd->sw_ctxt_err_status_cnt[4]; 3771 } 3772 3773 static u64 access_pio_write_overflow_err_cnt(const struct cntr_entry *entry, 3774 void *context, int vl, int mode, 3775 u64 data) 3776 { 3777 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3778 3779 return dd->sw_ctxt_err_status_cnt[3]; 3780 } 3781 3782 static u64 access_pio_write_crosses_boundary_err_cnt( 3783 const struct cntr_entry *entry, 3784 void *context, int vl, int mode, u64 data) 3785 { 3786 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3787 3788 return dd->sw_ctxt_err_status_cnt[2]; 3789 } 3790 3791 static u64 access_pio_disallowed_packet_err_cnt(const struct cntr_entry *entry, 3792 void *context, int vl, 3793 int mode, u64 data) 3794 { 3795 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3796 3797 return dd->sw_ctxt_err_status_cnt[1]; 3798 } 3799 3800 static u64 access_pio_inconsistent_sop_err_cnt(const struct cntr_entry *entry, 3801 void *context, int vl, int mode, 3802 u64 data) 3803 { 3804 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3805 3806 return dd->sw_ctxt_err_status_cnt[0]; 3807 } 3808 3809 /* 3810 * Software counters corresponding to each of the 3811 * error status bits within SendDmaEngErrStatus 3812 */ 3813 static u64 access_sdma_header_request_fifo_cor_err_cnt( 3814 const struct cntr_entry *entry, 3815 void *context, int vl, int mode, u64 data) 3816 { 3817 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3818 3819 return dd->sw_send_dma_eng_err_status_cnt[23]; 3820 } 3821 3822 static u64 access_sdma_header_storage_cor_err_cnt( 3823 const struct cntr_entry *entry, 3824 void *context, int vl, int mode, u64 data) 3825 { 3826 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3827 3828 return dd->sw_send_dma_eng_err_status_cnt[22]; 3829 } 3830 3831 static u64 access_sdma_packet_tracking_cor_err_cnt( 3832 const struct cntr_entry *entry, 3833 void *context, int vl, int mode, u64 data) 3834 { 3835 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3836 3837 return dd->sw_send_dma_eng_err_status_cnt[21]; 3838 } 3839 3840 static u64 access_sdma_assembly_cor_err_cnt(const struct cntr_entry *entry, 3841 void *context, int vl, int mode, 3842 u64 data) 3843 { 3844 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3845 3846 return dd->sw_send_dma_eng_err_status_cnt[20]; 3847 } 3848 3849 static u64 access_sdma_desc_table_cor_err_cnt(const struct cntr_entry *entry, 3850 void *context, int vl, int mode, 3851 u64 data) 3852 { 3853 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3854 3855 return dd->sw_send_dma_eng_err_status_cnt[19]; 3856 } 3857 3858 static u64 access_sdma_header_request_fifo_unc_err_cnt( 3859 const struct cntr_entry *entry, 3860 void *context, int vl, int mode, u64 data) 3861 { 3862 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3863 3864 return dd->sw_send_dma_eng_err_status_cnt[18]; 3865 } 3866 3867 static u64 access_sdma_header_storage_unc_err_cnt( 3868 const struct cntr_entry *entry, 3869 void *context, int vl, int mode, u64 data) 3870 { 3871 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3872 3873 return dd->sw_send_dma_eng_err_status_cnt[17]; 3874 } 3875 3876 static u64 access_sdma_packet_tracking_unc_err_cnt( 3877 const struct cntr_entry *entry, 3878 void *context, int vl, int mode, u64 data) 3879 { 3880 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3881 3882 return dd->sw_send_dma_eng_err_status_cnt[16]; 3883 } 3884 3885 static u64 access_sdma_assembly_unc_err_cnt(const struct cntr_entry *entry, 3886 void *context, int vl, int mode, 3887 u64 data) 3888 { 3889 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3890 3891 return dd->sw_send_dma_eng_err_status_cnt[15]; 3892 } 3893 3894 static u64 access_sdma_desc_table_unc_err_cnt(const struct cntr_entry *entry, 3895 void *context, int vl, int mode, 3896 u64 data) 3897 { 3898 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3899 3900 return dd->sw_send_dma_eng_err_status_cnt[14]; 3901 } 3902 3903 static u64 access_sdma_timeout_err_cnt(const struct cntr_entry *entry, 3904 void *context, int vl, int mode, 3905 u64 data) 3906 { 3907 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3908 3909 return dd->sw_send_dma_eng_err_status_cnt[13]; 3910 } 3911 3912 static u64 access_sdma_header_length_err_cnt(const struct cntr_entry *entry, 3913 void *context, int vl, int mode, 3914 u64 data) 3915 { 3916 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3917 3918 return dd->sw_send_dma_eng_err_status_cnt[12]; 3919 } 3920 3921 static u64 access_sdma_header_address_err_cnt(const struct cntr_entry *entry, 3922 void *context, int vl, int mode, 3923 u64 data) 3924 { 3925 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3926 3927 return dd->sw_send_dma_eng_err_status_cnt[11]; 3928 } 3929 3930 static u64 access_sdma_header_select_err_cnt(const struct cntr_entry *entry, 3931 void *context, int vl, int mode, 3932 u64 data) 3933 { 3934 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3935 3936 return dd->sw_send_dma_eng_err_status_cnt[10]; 3937 } 3938 3939 static u64 access_sdma_reserved_9_err_cnt(const struct cntr_entry *entry, 3940 void *context, int vl, int mode, 3941 u64 data) 3942 { 3943 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3944 3945 return dd->sw_send_dma_eng_err_status_cnt[9]; 3946 } 3947 3948 static u64 access_sdma_packet_desc_overflow_err_cnt( 3949 const struct cntr_entry *entry, 3950 void *context, int vl, int mode, u64 data) 3951 { 3952 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3953 3954 return dd->sw_send_dma_eng_err_status_cnt[8]; 3955 } 3956 3957 static u64 access_sdma_length_mismatch_err_cnt(const struct cntr_entry *entry, 3958 void *context, int vl, 3959 int mode, u64 data) 3960 { 3961 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3962 3963 return dd->sw_send_dma_eng_err_status_cnt[7]; 3964 } 3965 3966 static u64 access_sdma_halt_err_cnt(const struct cntr_entry *entry, 3967 void *context, int vl, int mode, u64 data) 3968 { 3969 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3970 3971 return dd->sw_send_dma_eng_err_status_cnt[6]; 3972 } 3973 3974 static u64 access_sdma_mem_read_err_cnt(const struct cntr_entry *entry, 3975 void *context, int vl, int mode, 3976 u64 data) 3977 { 3978 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3979 3980 return dd->sw_send_dma_eng_err_status_cnt[5]; 3981 } 3982 3983 static u64 access_sdma_first_desc_err_cnt(const struct cntr_entry *entry, 3984 void *context, int vl, int mode, 3985 u64 data) 3986 { 3987 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3988 3989 return dd->sw_send_dma_eng_err_status_cnt[4]; 3990 } 3991 3992 static u64 access_sdma_tail_out_of_bounds_err_cnt( 3993 const struct cntr_entry *entry, 3994 void *context, int vl, int mode, u64 data) 3995 { 3996 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3997 3998 return dd->sw_send_dma_eng_err_status_cnt[3]; 3999 } 4000 4001 static u64 access_sdma_too_long_err_cnt(const struct cntr_entry *entry, 4002 void *context, int vl, int mode, 4003 u64 data) 4004 { 4005 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4006 4007 return dd->sw_send_dma_eng_err_status_cnt[2]; 4008 } 4009 4010 static u64 access_sdma_gen_mismatch_err_cnt(const struct cntr_entry *entry, 4011 void *context, int vl, int mode, 4012 u64 data) 4013 { 4014 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4015 4016 return dd->sw_send_dma_eng_err_status_cnt[1]; 4017 } 4018 4019 static u64 access_sdma_wrong_dw_err_cnt(const struct cntr_entry *entry, 4020 void *context, int vl, int mode, 4021 u64 data) 4022 { 4023 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4024 4025 return dd->sw_send_dma_eng_err_status_cnt[0]; 4026 } 4027 4028 static u64 access_dc_rcv_err_cnt(const struct cntr_entry *entry, 4029 void *context, int vl, int mode, 4030 u64 data) 4031 { 4032 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4033 4034 u64 val = 0; 4035 u64 csr = entry->csr; 4036 4037 val = read_write_csr(dd, csr, mode, data); 4038 if (mode == CNTR_MODE_R) { 4039 val = val > CNTR_MAX - dd->sw_rcv_bypass_packet_errors ? 4040 CNTR_MAX : val + dd->sw_rcv_bypass_packet_errors; 4041 } else if (mode == CNTR_MODE_W) { 4042 dd->sw_rcv_bypass_packet_errors = 0; 4043 } else { 4044 dd_dev_err(dd, "Invalid cntr register access mode"); 4045 return 0; 4046 } 4047 return val; 4048 } 4049 4050 #define def_access_sw_cpu(cntr) \ 4051 static u64 access_sw_cpu_##cntr(const struct cntr_entry *entry, \ 4052 void *context, int vl, int mode, u64 data) \ 4053 { \ 4054 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; \ 4055 return read_write_cpu(ppd->dd, &ppd->ibport_data.rvp.z_ ##cntr, \ 4056 ppd->ibport_data.rvp.cntr, vl, \ 4057 mode, data); \ 4058 } 4059 4060 def_access_sw_cpu(rc_acks); 4061 def_access_sw_cpu(rc_qacks); 4062 def_access_sw_cpu(rc_delayed_comp); 4063 4064 #define def_access_ibp_counter(cntr) \ 4065 static u64 access_ibp_##cntr(const struct cntr_entry *entry, \ 4066 void *context, int vl, int mode, u64 data) \ 4067 { \ 4068 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; \ 4069 \ 4070 if (vl != CNTR_INVALID_VL) \ 4071 return 0; \ 4072 \ 4073 return read_write_sw(ppd->dd, &ppd->ibport_data.rvp.n_ ##cntr, \ 4074 mode, data); \ 4075 } 4076 4077 def_access_ibp_counter(loop_pkts); 4078 def_access_ibp_counter(rc_resends); 4079 def_access_ibp_counter(rnr_naks); 4080 def_access_ibp_counter(other_naks); 4081 def_access_ibp_counter(rc_timeouts); 4082 def_access_ibp_counter(pkt_drops); 4083 def_access_ibp_counter(dmawait); 4084 def_access_ibp_counter(rc_seqnak); 4085 def_access_ibp_counter(rc_dupreq); 4086 def_access_ibp_counter(rdma_seq); 4087 def_access_ibp_counter(unaligned); 4088 def_access_ibp_counter(seq_naks); 4089 def_access_ibp_counter(rc_crwaits); 4090 4091 static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = { 4092 [C_RCV_OVF] = RXE32_DEV_CNTR_ELEM(RcvOverflow, RCV_BUF_OVFL_CNT, CNTR_SYNTH), 4093 [C_RX_LEN_ERR] = RXE32_DEV_CNTR_ELEM(RxLenErr, RCV_LENGTH_ERR_CNT, CNTR_SYNTH), 4094 [C_RX_SHORT_ERR] = RXE32_DEV_CNTR_ELEM(RxShrErr, RCV_SHORT_ERR_CNT, CNTR_SYNTH), 4095 [C_RX_ICRC_ERR] = RXE32_DEV_CNTR_ELEM(RxICrcErr, RCV_ICRC_ERR_CNT, CNTR_SYNTH), 4096 [C_RX_EBP] = RXE32_DEV_CNTR_ELEM(RxEbpCnt, RCV_EBP_CNT, CNTR_SYNTH), 4097 [C_RX_TID_FULL] = RXE32_DEV_CNTR_ELEM(RxTIDFullEr, RCV_TID_FULL_ERR_CNT, 4098 CNTR_NORMAL), 4099 [C_RX_TID_INVALID] = RXE32_DEV_CNTR_ELEM(RxTIDInvalid, RCV_TID_VALID_ERR_CNT, 4100 CNTR_NORMAL), 4101 [C_RX_TID_FLGMS] = RXE32_DEV_CNTR_ELEM(RxTidFLGMs, 4102 RCV_TID_FLOW_GEN_MISMATCH_CNT, 4103 CNTR_NORMAL), 4104 [C_RX_CTX_EGRS] = RXE32_DEV_CNTR_ELEM(RxCtxEgrS, RCV_CONTEXT_EGR_STALL, 4105 CNTR_NORMAL), 4106 [C_RCV_TID_FLSMS] = RXE32_DEV_CNTR_ELEM(RxTidFLSMs, 4107 RCV_TID_FLOW_SEQ_MISMATCH_CNT, CNTR_NORMAL), 4108 [C_CCE_PCI_CR_ST] = CCE_PERF_DEV_CNTR_ELEM(CcePciCrSt, 4109 CCE_PCIE_POSTED_CRDT_STALL_CNT, CNTR_NORMAL), 4110 [C_CCE_PCI_TR_ST] = CCE_PERF_DEV_CNTR_ELEM(CcePciTrSt, CCE_PCIE_TRGT_STALL_CNT, 4111 CNTR_NORMAL), 4112 [C_CCE_PIO_WR_ST] = CCE_PERF_DEV_CNTR_ELEM(CcePioWrSt, CCE_PIO_WR_STALL_CNT, 4113 CNTR_NORMAL), 4114 [C_CCE_ERR_INT] = CCE_INT_DEV_CNTR_ELEM(CceErrInt, CCE_ERR_INT_CNT, 4115 CNTR_NORMAL), 4116 [C_CCE_SDMA_INT] = CCE_INT_DEV_CNTR_ELEM(CceSdmaInt, CCE_SDMA_INT_CNT, 4117 CNTR_NORMAL), 4118 [C_CCE_MISC_INT] = CCE_INT_DEV_CNTR_ELEM(CceMiscInt, CCE_MISC_INT_CNT, 4119 CNTR_NORMAL), 4120 [C_CCE_RCV_AV_INT] = CCE_INT_DEV_CNTR_ELEM(CceRcvAvInt, CCE_RCV_AVAIL_INT_CNT, 4121 CNTR_NORMAL), 4122 [C_CCE_RCV_URG_INT] = CCE_INT_DEV_CNTR_ELEM(CceRcvUrgInt, 4123 CCE_RCV_URGENT_INT_CNT, CNTR_NORMAL), 4124 [C_CCE_SEND_CR_INT] = CCE_INT_DEV_CNTR_ELEM(CceSndCrInt, 4125 CCE_SEND_CREDIT_INT_CNT, CNTR_NORMAL), 4126 [C_DC_UNC_ERR] = DC_PERF_CNTR(DcUnctblErr, DCC_ERR_UNCORRECTABLE_CNT, 4127 CNTR_SYNTH), 4128 [C_DC_RCV_ERR] = CNTR_ELEM("DcRecvErr", DCC_ERR_PORTRCV_ERR_CNT, 0, CNTR_SYNTH, 4129 access_dc_rcv_err_cnt), 4130 [C_DC_FM_CFG_ERR] = DC_PERF_CNTR(DcFmCfgErr, DCC_ERR_FMCONFIG_ERR_CNT, 4131 CNTR_SYNTH), 4132 [C_DC_RMT_PHY_ERR] = DC_PERF_CNTR(DcRmtPhyErr, DCC_ERR_RCVREMOTE_PHY_ERR_CNT, 4133 CNTR_SYNTH), 4134 [C_DC_DROPPED_PKT] = DC_PERF_CNTR(DcDroppedPkt, DCC_ERR_DROPPED_PKT_CNT, 4135 CNTR_SYNTH), 4136 [C_DC_MC_XMIT_PKTS] = DC_PERF_CNTR(DcMcXmitPkts, 4137 DCC_PRF_PORT_XMIT_MULTICAST_CNT, CNTR_SYNTH), 4138 [C_DC_MC_RCV_PKTS] = DC_PERF_CNTR(DcMcRcvPkts, 4139 DCC_PRF_PORT_RCV_MULTICAST_PKT_CNT, 4140 CNTR_SYNTH), 4141 [C_DC_XMIT_CERR] = DC_PERF_CNTR(DcXmitCorr, 4142 DCC_PRF_PORT_XMIT_CORRECTABLE_CNT, CNTR_SYNTH), 4143 [C_DC_RCV_CERR] = DC_PERF_CNTR(DcRcvCorrCnt, DCC_PRF_PORT_RCV_CORRECTABLE_CNT, 4144 CNTR_SYNTH), 4145 [C_DC_RCV_FCC] = DC_PERF_CNTR(DcRxFCntl, DCC_PRF_RX_FLOW_CRTL_CNT, 4146 CNTR_SYNTH), 4147 [C_DC_XMIT_FCC] = DC_PERF_CNTR(DcXmitFCntl, DCC_PRF_TX_FLOW_CRTL_CNT, 4148 CNTR_SYNTH), 4149 [C_DC_XMIT_FLITS] = DC_PERF_CNTR(DcXmitFlits, DCC_PRF_PORT_XMIT_DATA_CNT, 4150 CNTR_SYNTH), 4151 [C_DC_RCV_FLITS] = DC_PERF_CNTR(DcRcvFlits, DCC_PRF_PORT_RCV_DATA_CNT, 4152 CNTR_SYNTH), 4153 [C_DC_XMIT_PKTS] = DC_PERF_CNTR(DcXmitPkts, DCC_PRF_PORT_XMIT_PKTS_CNT, 4154 CNTR_SYNTH), 4155 [C_DC_RCV_PKTS] = DC_PERF_CNTR(DcRcvPkts, DCC_PRF_PORT_RCV_PKTS_CNT, 4156 CNTR_SYNTH), 4157 [C_DC_RX_FLIT_VL] = DC_PERF_CNTR(DcRxFlitVl, DCC_PRF_PORT_VL_RCV_DATA_CNT, 4158 CNTR_SYNTH | CNTR_VL), 4159 [C_DC_RX_PKT_VL] = DC_PERF_CNTR(DcRxPktVl, DCC_PRF_PORT_VL_RCV_PKTS_CNT, 4160 CNTR_SYNTH | CNTR_VL), 4161 [C_DC_RCV_FCN] = DC_PERF_CNTR(DcRcvFcn, DCC_PRF_PORT_RCV_FECN_CNT, CNTR_SYNTH), 4162 [C_DC_RCV_FCN_VL] = DC_PERF_CNTR(DcRcvFcnVl, DCC_PRF_PORT_VL_RCV_FECN_CNT, 4163 CNTR_SYNTH | CNTR_VL), 4164 [C_DC_RCV_BCN] = DC_PERF_CNTR(DcRcvBcn, DCC_PRF_PORT_RCV_BECN_CNT, CNTR_SYNTH), 4165 [C_DC_RCV_BCN_VL] = DC_PERF_CNTR(DcRcvBcnVl, DCC_PRF_PORT_VL_RCV_BECN_CNT, 4166 CNTR_SYNTH | CNTR_VL), 4167 [C_DC_RCV_BBL] = DC_PERF_CNTR(DcRcvBbl, DCC_PRF_PORT_RCV_BUBBLE_CNT, 4168 CNTR_SYNTH), 4169 [C_DC_RCV_BBL_VL] = DC_PERF_CNTR(DcRcvBblVl, DCC_PRF_PORT_VL_RCV_BUBBLE_CNT, 4170 CNTR_SYNTH | CNTR_VL), 4171 [C_DC_MARK_FECN] = DC_PERF_CNTR(DcMarkFcn, DCC_PRF_PORT_MARK_FECN_CNT, 4172 CNTR_SYNTH), 4173 [C_DC_MARK_FECN_VL] = DC_PERF_CNTR(DcMarkFcnVl, DCC_PRF_PORT_VL_MARK_FECN_CNT, 4174 CNTR_SYNTH | CNTR_VL), 4175 [C_DC_TOTAL_CRC] = 4176 DC_PERF_CNTR_LCB(DcTotCrc, DC_LCB_ERR_INFO_TOTAL_CRC_ERR, 4177 CNTR_SYNTH), 4178 [C_DC_CRC_LN0] = DC_PERF_CNTR_LCB(DcCrcLn0, DC_LCB_ERR_INFO_CRC_ERR_LN0, 4179 CNTR_SYNTH), 4180 [C_DC_CRC_LN1] = DC_PERF_CNTR_LCB(DcCrcLn1, DC_LCB_ERR_INFO_CRC_ERR_LN1, 4181 CNTR_SYNTH), 4182 [C_DC_CRC_LN2] = DC_PERF_CNTR_LCB(DcCrcLn2, DC_LCB_ERR_INFO_CRC_ERR_LN2, 4183 CNTR_SYNTH), 4184 [C_DC_CRC_LN3] = DC_PERF_CNTR_LCB(DcCrcLn3, DC_LCB_ERR_INFO_CRC_ERR_LN3, 4185 CNTR_SYNTH), 4186 [C_DC_CRC_MULT_LN] = 4187 DC_PERF_CNTR_LCB(DcMultLn, DC_LCB_ERR_INFO_CRC_ERR_MULTI_LN, 4188 CNTR_SYNTH), 4189 [C_DC_TX_REPLAY] = DC_PERF_CNTR_LCB(DcTxReplay, DC_LCB_ERR_INFO_TX_REPLAY_CNT, 4190 CNTR_SYNTH), 4191 [C_DC_RX_REPLAY] = DC_PERF_CNTR_LCB(DcRxReplay, DC_LCB_ERR_INFO_RX_REPLAY_CNT, 4192 CNTR_SYNTH), 4193 [C_DC_SEQ_CRC_CNT] = 4194 DC_PERF_CNTR_LCB(DcLinkSeqCrc, DC_LCB_ERR_INFO_SEQ_CRC_CNT, 4195 CNTR_SYNTH), 4196 [C_DC_ESC0_ONLY_CNT] = 4197 DC_PERF_CNTR_LCB(DcEsc0, DC_LCB_ERR_INFO_ESCAPE_0_ONLY_CNT, 4198 CNTR_SYNTH), 4199 [C_DC_ESC0_PLUS1_CNT] = 4200 DC_PERF_CNTR_LCB(DcEsc1, DC_LCB_ERR_INFO_ESCAPE_0_PLUS1_CNT, 4201 CNTR_SYNTH), 4202 [C_DC_ESC0_PLUS2_CNT] = 4203 DC_PERF_CNTR_LCB(DcEsc0Plus2, DC_LCB_ERR_INFO_ESCAPE_0_PLUS2_CNT, 4204 CNTR_SYNTH), 4205 [C_DC_REINIT_FROM_PEER_CNT] = 4206 DC_PERF_CNTR_LCB(DcReinitPeer, DC_LCB_ERR_INFO_REINIT_FROM_PEER_CNT, 4207 CNTR_SYNTH), 4208 [C_DC_SBE_CNT] = DC_PERF_CNTR_LCB(DcSbe, DC_LCB_ERR_INFO_SBE_CNT, 4209 CNTR_SYNTH), 4210 [C_DC_MISC_FLG_CNT] = 4211 DC_PERF_CNTR_LCB(DcMiscFlg, DC_LCB_ERR_INFO_MISC_FLG_CNT, 4212 CNTR_SYNTH), 4213 [C_DC_PRF_GOOD_LTP_CNT] = 4214 DC_PERF_CNTR_LCB(DcGoodLTP, DC_LCB_PRF_GOOD_LTP_CNT, CNTR_SYNTH), 4215 [C_DC_PRF_ACCEPTED_LTP_CNT] = 4216 DC_PERF_CNTR_LCB(DcAccLTP, DC_LCB_PRF_ACCEPTED_LTP_CNT, 4217 CNTR_SYNTH), 4218 [C_DC_PRF_RX_FLIT_CNT] = 4219 DC_PERF_CNTR_LCB(DcPrfRxFlit, DC_LCB_PRF_RX_FLIT_CNT, CNTR_SYNTH), 4220 [C_DC_PRF_TX_FLIT_CNT] = 4221 DC_PERF_CNTR_LCB(DcPrfTxFlit, DC_LCB_PRF_TX_FLIT_CNT, CNTR_SYNTH), 4222 [C_DC_PRF_CLK_CNTR] = 4223 DC_PERF_CNTR_LCB(DcPrfClk, DC_LCB_PRF_CLK_CNTR, CNTR_SYNTH), 4224 [C_DC_PG_DBG_FLIT_CRDTS_CNT] = 4225 DC_PERF_CNTR_LCB(DcFltCrdts, DC_LCB_PG_DBG_FLIT_CRDTS_CNT, CNTR_SYNTH), 4226 [C_DC_PG_STS_PAUSE_COMPLETE_CNT] = 4227 DC_PERF_CNTR_LCB(DcPauseComp, DC_LCB_PG_STS_PAUSE_COMPLETE_CNT, 4228 CNTR_SYNTH), 4229 [C_DC_PG_STS_TX_SBE_CNT] = 4230 DC_PERF_CNTR_LCB(DcStsTxSbe, DC_LCB_PG_STS_TX_SBE_CNT, CNTR_SYNTH), 4231 [C_DC_PG_STS_TX_MBE_CNT] = 4232 DC_PERF_CNTR_LCB(DcStsTxMbe, DC_LCB_PG_STS_TX_MBE_CNT, 4233 CNTR_SYNTH), 4234 [C_SW_CPU_INTR] = CNTR_ELEM("Intr", 0, 0, CNTR_NORMAL, 4235 access_sw_cpu_intr), 4236 [C_SW_CPU_RCV_LIM] = CNTR_ELEM("RcvLimit", 0, 0, CNTR_NORMAL, 4237 access_sw_cpu_rcv_limit), 4238 [C_SW_CTX0_SEQ_DROP] = CNTR_ELEM("SeqDrop0", 0, 0, CNTR_NORMAL, 4239 access_sw_ctx0_seq_drop), 4240 [C_SW_VTX_WAIT] = CNTR_ELEM("vTxWait", 0, 0, CNTR_NORMAL, 4241 access_sw_vtx_wait), 4242 [C_SW_PIO_WAIT] = CNTR_ELEM("PioWait", 0, 0, CNTR_NORMAL, 4243 access_sw_pio_wait), 4244 [C_SW_PIO_DRAIN] = CNTR_ELEM("PioDrain", 0, 0, CNTR_NORMAL, 4245 access_sw_pio_drain), 4246 [C_SW_KMEM_WAIT] = CNTR_ELEM("KmemWait", 0, 0, CNTR_NORMAL, 4247 access_sw_kmem_wait), 4248 [C_SW_TID_WAIT] = CNTR_ELEM("TidWait", 0, 0, CNTR_NORMAL, 4249 hfi1_access_sw_tid_wait), 4250 [C_SW_SEND_SCHED] = CNTR_ELEM("SendSched", 0, 0, CNTR_NORMAL, 4251 access_sw_send_schedule), 4252 [C_SDMA_DESC_FETCHED_CNT] = CNTR_ELEM("SDEDscFdCn", 4253 SEND_DMA_DESC_FETCHED_CNT, 0, 4254 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4255 dev_access_u32_csr), 4256 [C_SDMA_INT_CNT] = CNTR_ELEM("SDMAInt", 0, 0, 4257 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4258 access_sde_int_cnt), 4259 [C_SDMA_ERR_CNT] = CNTR_ELEM("SDMAErrCt", 0, 0, 4260 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4261 access_sde_err_cnt), 4262 [C_SDMA_IDLE_INT_CNT] = CNTR_ELEM("SDMAIdInt", 0, 0, 4263 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4264 access_sde_idle_int_cnt), 4265 [C_SDMA_PROGRESS_INT_CNT] = CNTR_ELEM("SDMAPrIntCn", 0, 0, 4266 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4267 access_sde_progress_int_cnt), 4268 /* MISC_ERR_STATUS */ 4269 [C_MISC_PLL_LOCK_FAIL_ERR] = CNTR_ELEM("MISC_PLL_LOCK_FAIL_ERR", 0, 0, 4270 CNTR_NORMAL, 4271 access_misc_pll_lock_fail_err_cnt), 4272 [C_MISC_MBIST_FAIL_ERR] = CNTR_ELEM("MISC_MBIST_FAIL_ERR", 0, 0, 4273 CNTR_NORMAL, 4274 access_misc_mbist_fail_err_cnt), 4275 [C_MISC_INVALID_EEP_CMD_ERR] = CNTR_ELEM("MISC_INVALID_EEP_CMD_ERR", 0, 0, 4276 CNTR_NORMAL, 4277 access_misc_invalid_eep_cmd_err_cnt), 4278 [C_MISC_EFUSE_DONE_PARITY_ERR] = CNTR_ELEM("MISC_EFUSE_DONE_PARITY_ERR", 0, 0, 4279 CNTR_NORMAL, 4280 access_misc_efuse_done_parity_err_cnt), 4281 [C_MISC_EFUSE_WRITE_ERR] = CNTR_ELEM("MISC_EFUSE_WRITE_ERR", 0, 0, 4282 CNTR_NORMAL, 4283 access_misc_efuse_write_err_cnt), 4284 [C_MISC_EFUSE_READ_BAD_ADDR_ERR] = CNTR_ELEM("MISC_EFUSE_READ_BAD_ADDR_ERR", 0, 4285 0, CNTR_NORMAL, 4286 access_misc_efuse_read_bad_addr_err_cnt), 4287 [C_MISC_EFUSE_CSR_PARITY_ERR] = CNTR_ELEM("MISC_EFUSE_CSR_PARITY_ERR", 0, 0, 4288 CNTR_NORMAL, 4289 access_misc_efuse_csr_parity_err_cnt), 4290 [C_MISC_FW_AUTH_FAILED_ERR] = CNTR_ELEM("MISC_FW_AUTH_FAILED_ERR", 0, 0, 4291 CNTR_NORMAL, 4292 access_misc_fw_auth_failed_err_cnt), 4293 [C_MISC_KEY_MISMATCH_ERR] = CNTR_ELEM("MISC_KEY_MISMATCH_ERR", 0, 0, 4294 CNTR_NORMAL, 4295 access_misc_key_mismatch_err_cnt), 4296 [C_MISC_SBUS_WRITE_FAILED_ERR] = CNTR_ELEM("MISC_SBUS_WRITE_FAILED_ERR", 0, 0, 4297 CNTR_NORMAL, 4298 access_misc_sbus_write_failed_err_cnt), 4299 [C_MISC_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("MISC_CSR_WRITE_BAD_ADDR_ERR", 0, 0, 4300 CNTR_NORMAL, 4301 access_misc_csr_write_bad_addr_err_cnt), 4302 [C_MISC_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("MISC_CSR_READ_BAD_ADDR_ERR", 0, 0, 4303 CNTR_NORMAL, 4304 access_misc_csr_read_bad_addr_err_cnt), 4305 [C_MISC_CSR_PARITY_ERR] = CNTR_ELEM("MISC_CSR_PARITY_ERR", 0, 0, 4306 CNTR_NORMAL, 4307 access_misc_csr_parity_err_cnt), 4308 /* CceErrStatus */ 4309 [C_CCE_ERR_STATUS_AGGREGATED_CNT] = CNTR_ELEM("CceErrStatusAggregatedCnt", 0, 0, 4310 CNTR_NORMAL, 4311 access_sw_cce_err_status_aggregated_cnt), 4312 [C_CCE_MSIX_CSR_PARITY_ERR] = CNTR_ELEM("CceMsixCsrParityErr", 0, 0, 4313 CNTR_NORMAL, 4314 access_cce_msix_csr_parity_err_cnt), 4315 [C_CCE_INT_MAP_UNC_ERR] = CNTR_ELEM("CceIntMapUncErr", 0, 0, 4316 CNTR_NORMAL, 4317 access_cce_int_map_unc_err_cnt), 4318 [C_CCE_INT_MAP_COR_ERR] = CNTR_ELEM("CceIntMapCorErr", 0, 0, 4319 CNTR_NORMAL, 4320 access_cce_int_map_cor_err_cnt), 4321 [C_CCE_MSIX_TABLE_UNC_ERR] = CNTR_ELEM("CceMsixTableUncErr", 0, 0, 4322 CNTR_NORMAL, 4323 access_cce_msix_table_unc_err_cnt), 4324 [C_CCE_MSIX_TABLE_COR_ERR] = CNTR_ELEM("CceMsixTableCorErr", 0, 0, 4325 CNTR_NORMAL, 4326 access_cce_msix_table_cor_err_cnt), 4327 [C_CCE_RXDMA_CONV_FIFO_PARITY_ERR] = CNTR_ELEM("CceRxdmaConvFifoParityErr", 0, 4328 0, CNTR_NORMAL, 4329 access_cce_rxdma_conv_fifo_parity_err_cnt), 4330 [C_CCE_RCPL_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceRcplAsyncFifoParityErr", 0, 4331 0, CNTR_NORMAL, 4332 access_cce_rcpl_async_fifo_parity_err_cnt), 4333 [C_CCE_SEG_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("CceSegWriteBadAddrErr", 0, 0, 4334 CNTR_NORMAL, 4335 access_cce_seg_write_bad_addr_err_cnt), 4336 [C_CCE_SEG_READ_BAD_ADDR_ERR] = CNTR_ELEM("CceSegReadBadAddrErr", 0, 0, 4337 CNTR_NORMAL, 4338 access_cce_seg_read_bad_addr_err_cnt), 4339 [C_LA_TRIGGERED] = CNTR_ELEM("Cce LATriggered", 0, 0, 4340 CNTR_NORMAL, 4341 access_la_triggered_cnt), 4342 [C_CCE_TRGT_CPL_TIMEOUT_ERR] = CNTR_ELEM("CceTrgtCplTimeoutErr", 0, 0, 4343 CNTR_NORMAL, 4344 access_cce_trgt_cpl_timeout_err_cnt), 4345 [C_PCIC_RECEIVE_PARITY_ERR] = CNTR_ELEM("PcicReceiveParityErr", 0, 0, 4346 CNTR_NORMAL, 4347 access_pcic_receive_parity_err_cnt), 4348 [C_PCIC_TRANSMIT_BACK_PARITY_ERR] = CNTR_ELEM("PcicTransmitBackParityErr", 0, 0, 4349 CNTR_NORMAL, 4350 access_pcic_transmit_back_parity_err_cnt), 4351 [C_PCIC_TRANSMIT_FRONT_PARITY_ERR] = CNTR_ELEM("PcicTransmitFrontParityErr", 0, 4352 0, CNTR_NORMAL, 4353 access_pcic_transmit_front_parity_err_cnt), 4354 [C_PCIC_CPL_DAT_Q_UNC_ERR] = CNTR_ELEM("PcicCplDatQUncErr", 0, 0, 4355 CNTR_NORMAL, 4356 access_pcic_cpl_dat_q_unc_err_cnt), 4357 [C_PCIC_CPL_HD_Q_UNC_ERR] = CNTR_ELEM("PcicCplHdQUncErr", 0, 0, 4358 CNTR_NORMAL, 4359 access_pcic_cpl_hd_q_unc_err_cnt), 4360 [C_PCIC_POST_DAT_Q_UNC_ERR] = CNTR_ELEM("PcicPostDatQUncErr", 0, 0, 4361 CNTR_NORMAL, 4362 access_pcic_post_dat_q_unc_err_cnt), 4363 [C_PCIC_POST_HD_Q_UNC_ERR] = CNTR_ELEM("PcicPostHdQUncErr", 0, 0, 4364 CNTR_NORMAL, 4365 access_pcic_post_hd_q_unc_err_cnt), 4366 [C_PCIC_RETRY_SOT_MEM_UNC_ERR] = CNTR_ELEM("PcicRetrySotMemUncErr", 0, 0, 4367 CNTR_NORMAL, 4368 access_pcic_retry_sot_mem_unc_err_cnt), 4369 [C_PCIC_RETRY_MEM_UNC_ERR] = CNTR_ELEM("PcicRetryMemUncErr", 0, 0, 4370 CNTR_NORMAL, 4371 access_pcic_retry_mem_unc_err), 4372 [C_PCIC_N_POST_DAT_Q_PARITY_ERR] = CNTR_ELEM("PcicNPostDatQParityErr", 0, 0, 4373 CNTR_NORMAL, 4374 access_pcic_n_post_dat_q_parity_err_cnt), 4375 [C_PCIC_N_POST_H_Q_PARITY_ERR] = CNTR_ELEM("PcicNPostHQParityErr", 0, 0, 4376 CNTR_NORMAL, 4377 access_pcic_n_post_h_q_parity_err_cnt), 4378 [C_PCIC_CPL_DAT_Q_COR_ERR] = CNTR_ELEM("PcicCplDatQCorErr", 0, 0, 4379 CNTR_NORMAL, 4380 access_pcic_cpl_dat_q_cor_err_cnt), 4381 [C_PCIC_CPL_HD_Q_COR_ERR] = CNTR_ELEM("PcicCplHdQCorErr", 0, 0, 4382 CNTR_NORMAL, 4383 access_pcic_cpl_hd_q_cor_err_cnt), 4384 [C_PCIC_POST_DAT_Q_COR_ERR] = CNTR_ELEM("PcicPostDatQCorErr", 0, 0, 4385 CNTR_NORMAL, 4386 access_pcic_post_dat_q_cor_err_cnt), 4387 [C_PCIC_POST_HD_Q_COR_ERR] = CNTR_ELEM("PcicPostHdQCorErr", 0, 0, 4388 CNTR_NORMAL, 4389 access_pcic_post_hd_q_cor_err_cnt), 4390 [C_PCIC_RETRY_SOT_MEM_COR_ERR] = CNTR_ELEM("PcicRetrySotMemCorErr", 0, 0, 4391 CNTR_NORMAL, 4392 access_pcic_retry_sot_mem_cor_err_cnt), 4393 [C_PCIC_RETRY_MEM_COR_ERR] = CNTR_ELEM("PcicRetryMemCorErr", 0, 0, 4394 CNTR_NORMAL, 4395 access_pcic_retry_mem_cor_err_cnt), 4396 [C_CCE_CLI1_ASYNC_FIFO_DBG_PARITY_ERR] = CNTR_ELEM( 4397 "CceCli1AsyncFifoDbgParityError", 0, 0, 4398 CNTR_NORMAL, 4399 access_cce_cli1_async_fifo_dbg_parity_err_cnt), 4400 [C_CCE_CLI1_ASYNC_FIFO_RXDMA_PARITY_ERR] = CNTR_ELEM( 4401 "CceCli1AsyncFifoRxdmaParityError", 0, 0, 4402 CNTR_NORMAL, 4403 access_cce_cli1_async_fifo_rxdma_parity_err_cnt 4404 ), 4405 [C_CCE_CLI1_ASYNC_FIFO_SDMA_HD_PARITY_ERR] = CNTR_ELEM( 4406 "CceCli1AsyncFifoSdmaHdParityErr", 0, 0, 4407 CNTR_NORMAL, 4408 access_cce_cli1_async_fifo_sdma_hd_parity_err_cnt), 4409 [C_CCE_CLI1_ASYNC_FIFO_PIO_CRDT_PARITY_ERR] = CNTR_ELEM( 4410 "CceCli1AsyncFifoPioCrdtParityErr", 0, 0, 4411 CNTR_NORMAL, 4412 access_cce_cl1_async_fifo_pio_crdt_parity_err_cnt), 4413 [C_CCE_CLI2_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceCli2AsyncFifoParityErr", 0, 4414 0, CNTR_NORMAL, 4415 access_cce_cli2_async_fifo_parity_err_cnt), 4416 [C_CCE_CSR_CFG_BUS_PARITY_ERR] = CNTR_ELEM("CceCsrCfgBusParityErr", 0, 0, 4417 CNTR_NORMAL, 4418 access_cce_csr_cfg_bus_parity_err_cnt), 4419 [C_CCE_CLI0_ASYNC_FIFO_PARTIY_ERR] = CNTR_ELEM("CceCli0AsyncFifoParityErr", 0, 4420 0, CNTR_NORMAL, 4421 access_cce_cli0_async_fifo_parity_err_cnt), 4422 [C_CCE_RSPD_DATA_PARITY_ERR] = CNTR_ELEM("CceRspdDataParityErr", 0, 0, 4423 CNTR_NORMAL, 4424 access_cce_rspd_data_parity_err_cnt), 4425 [C_CCE_TRGT_ACCESS_ERR] = CNTR_ELEM("CceTrgtAccessErr", 0, 0, 4426 CNTR_NORMAL, 4427 access_cce_trgt_access_err_cnt), 4428 [C_CCE_TRGT_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceTrgtAsyncFifoParityErr", 0, 4429 0, CNTR_NORMAL, 4430 access_cce_trgt_async_fifo_parity_err_cnt), 4431 [C_CCE_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("CceCsrWriteBadAddrErr", 0, 0, 4432 CNTR_NORMAL, 4433 access_cce_csr_write_bad_addr_err_cnt), 4434 [C_CCE_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("CceCsrReadBadAddrErr", 0, 0, 4435 CNTR_NORMAL, 4436 access_cce_csr_read_bad_addr_err_cnt), 4437 [C_CCE_CSR_PARITY_ERR] = CNTR_ELEM("CceCsrParityErr", 0, 0, 4438 CNTR_NORMAL, 4439 access_ccs_csr_parity_err_cnt), 4440 4441 /* RcvErrStatus */ 4442 [C_RX_CSR_PARITY_ERR] = CNTR_ELEM("RxCsrParityErr", 0, 0, 4443 CNTR_NORMAL, 4444 access_rx_csr_parity_err_cnt), 4445 [C_RX_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("RxCsrWriteBadAddrErr", 0, 0, 4446 CNTR_NORMAL, 4447 access_rx_csr_write_bad_addr_err_cnt), 4448 [C_RX_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("RxCsrReadBadAddrErr", 0, 0, 4449 CNTR_NORMAL, 4450 access_rx_csr_read_bad_addr_err_cnt), 4451 [C_RX_DMA_CSR_UNC_ERR] = CNTR_ELEM("RxDmaCsrUncErr", 0, 0, 4452 CNTR_NORMAL, 4453 access_rx_dma_csr_unc_err_cnt), 4454 [C_RX_DMA_DQ_FSM_ENCODING_ERR] = CNTR_ELEM("RxDmaDqFsmEncodingErr", 0, 0, 4455 CNTR_NORMAL, 4456 access_rx_dma_dq_fsm_encoding_err_cnt), 4457 [C_RX_DMA_EQ_FSM_ENCODING_ERR] = CNTR_ELEM("RxDmaEqFsmEncodingErr", 0, 0, 4458 CNTR_NORMAL, 4459 access_rx_dma_eq_fsm_encoding_err_cnt), 4460 [C_RX_DMA_CSR_PARITY_ERR] = CNTR_ELEM("RxDmaCsrParityErr", 0, 0, 4461 CNTR_NORMAL, 4462 access_rx_dma_csr_parity_err_cnt), 4463 [C_RX_RBUF_DATA_COR_ERR] = CNTR_ELEM("RxRbufDataCorErr", 0, 0, 4464 CNTR_NORMAL, 4465 access_rx_rbuf_data_cor_err_cnt), 4466 [C_RX_RBUF_DATA_UNC_ERR] = CNTR_ELEM("RxRbufDataUncErr", 0, 0, 4467 CNTR_NORMAL, 4468 access_rx_rbuf_data_unc_err_cnt), 4469 [C_RX_DMA_DATA_FIFO_RD_COR_ERR] = CNTR_ELEM("RxDmaDataFifoRdCorErr", 0, 0, 4470 CNTR_NORMAL, 4471 access_rx_dma_data_fifo_rd_cor_err_cnt), 4472 [C_RX_DMA_DATA_FIFO_RD_UNC_ERR] = CNTR_ELEM("RxDmaDataFifoRdUncErr", 0, 0, 4473 CNTR_NORMAL, 4474 access_rx_dma_data_fifo_rd_unc_err_cnt), 4475 [C_RX_DMA_HDR_FIFO_RD_COR_ERR] = CNTR_ELEM("RxDmaHdrFifoRdCorErr", 0, 0, 4476 CNTR_NORMAL, 4477 access_rx_dma_hdr_fifo_rd_cor_err_cnt), 4478 [C_RX_DMA_HDR_FIFO_RD_UNC_ERR] = CNTR_ELEM("RxDmaHdrFifoRdUncErr", 0, 0, 4479 CNTR_NORMAL, 4480 access_rx_dma_hdr_fifo_rd_unc_err_cnt), 4481 [C_RX_RBUF_DESC_PART2_COR_ERR] = CNTR_ELEM("RxRbufDescPart2CorErr", 0, 0, 4482 CNTR_NORMAL, 4483 access_rx_rbuf_desc_part2_cor_err_cnt), 4484 [C_RX_RBUF_DESC_PART2_UNC_ERR] = CNTR_ELEM("RxRbufDescPart2UncErr", 0, 0, 4485 CNTR_NORMAL, 4486 access_rx_rbuf_desc_part2_unc_err_cnt), 4487 [C_RX_RBUF_DESC_PART1_COR_ERR] = CNTR_ELEM("RxRbufDescPart1CorErr", 0, 0, 4488 CNTR_NORMAL, 4489 access_rx_rbuf_desc_part1_cor_err_cnt), 4490 [C_RX_RBUF_DESC_PART1_UNC_ERR] = CNTR_ELEM("RxRbufDescPart1UncErr", 0, 0, 4491 CNTR_NORMAL, 4492 access_rx_rbuf_desc_part1_unc_err_cnt), 4493 [C_RX_HQ_INTR_FSM_ERR] = CNTR_ELEM("RxHqIntrFsmErr", 0, 0, 4494 CNTR_NORMAL, 4495 access_rx_hq_intr_fsm_err_cnt), 4496 [C_RX_HQ_INTR_CSR_PARITY_ERR] = CNTR_ELEM("RxHqIntrCsrParityErr", 0, 0, 4497 CNTR_NORMAL, 4498 access_rx_hq_intr_csr_parity_err_cnt), 4499 [C_RX_LOOKUP_CSR_PARITY_ERR] = CNTR_ELEM("RxLookupCsrParityErr", 0, 0, 4500 CNTR_NORMAL, 4501 access_rx_lookup_csr_parity_err_cnt), 4502 [C_RX_LOOKUP_RCV_ARRAY_COR_ERR] = CNTR_ELEM("RxLookupRcvArrayCorErr", 0, 0, 4503 CNTR_NORMAL, 4504 access_rx_lookup_rcv_array_cor_err_cnt), 4505 [C_RX_LOOKUP_RCV_ARRAY_UNC_ERR] = CNTR_ELEM("RxLookupRcvArrayUncErr", 0, 0, 4506 CNTR_NORMAL, 4507 access_rx_lookup_rcv_array_unc_err_cnt), 4508 [C_RX_LOOKUP_DES_PART2_PARITY_ERR] = CNTR_ELEM("RxLookupDesPart2ParityErr", 0, 4509 0, CNTR_NORMAL, 4510 access_rx_lookup_des_part2_parity_err_cnt), 4511 [C_RX_LOOKUP_DES_PART1_UNC_COR_ERR] = CNTR_ELEM("RxLookupDesPart1UncCorErr", 0, 4512 0, CNTR_NORMAL, 4513 access_rx_lookup_des_part1_unc_cor_err_cnt), 4514 [C_RX_LOOKUP_DES_PART1_UNC_ERR] = CNTR_ELEM("RxLookupDesPart1UncErr", 0, 0, 4515 CNTR_NORMAL, 4516 access_rx_lookup_des_part1_unc_err_cnt), 4517 [C_RX_RBUF_NEXT_FREE_BUF_COR_ERR] = CNTR_ELEM("RxRbufNextFreeBufCorErr", 0, 0, 4518 CNTR_NORMAL, 4519 access_rx_rbuf_next_free_buf_cor_err_cnt), 4520 [C_RX_RBUF_NEXT_FREE_BUF_UNC_ERR] = CNTR_ELEM("RxRbufNextFreeBufUncErr", 0, 0, 4521 CNTR_NORMAL, 4522 access_rx_rbuf_next_free_buf_unc_err_cnt), 4523 [C_RX_RBUF_FL_INIT_WR_ADDR_PARITY_ERR] = CNTR_ELEM( 4524 "RxRbufFlInitWrAddrParityErr", 0, 0, 4525 CNTR_NORMAL, 4526 access_rbuf_fl_init_wr_addr_parity_err_cnt), 4527 [C_RX_RBUF_FL_INITDONE_PARITY_ERR] = CNTR_ELEM("RxRbufFlInitdoneParityErr", 0, 4528 0, CNTR_NORMAL, 4529 access_rx_rbuf_fl_initdone_parity_err_cnt), 4530 [C_RX_RBUF_FL_WRITE_ADDR_PARITY_ERR] = CNTR_ELEM("RxRbufFlWrAddrParityErr", 0, 4531 0, CNTR_NORMAL, 4532 access_rx_rbuf_fl_write_addr_parity_err_cnt), 4533 [C_RX_RBUF_FL_RD_ADDR_PARITY_ERR] = CNTR_ELEM("RxRbufFlRdAddrParityErr", 0, 0, 4534 CNTR_NORMAL, 4535 access_rx_rbuf_fl_rd_addr_parity_err_cnt), 4536 [C_RX_RBUF_EMPTY_ERR] = CNTR_ELEM("RxRbufEmptyErr", 0, 0, 4537 CNTR_NORMAL, 4538 access_rx_rbuf_empty_err_cnt), 4539 [C_RX_RBUF_FULL_ERR] = CNTR_ELEM("RxRbufFullErr", 0, 0, 4540 CNTR_NORMAL, 4541 access_rx_rbuf_full_err_cnt), 4542 [C_RX_RBUF_BAD_LOOKUP_ERR] = CNTR_ELEM("RxRBufBadLookupErr", 0, 0, 4543 CNTR_NORMAL, 4544 access_rbuf_bad_lookup_err_cnt), 4545 [C_RX_RBUF_CTX_ID_PARITY_ERR] = CNTR_ELEM("RxRbufCtxIdParityErr", 0, 0, 4546 CNTR_NORMAL, 4547 access_rbuf_ctx_id_parity_err_cnt), 4548 [C_RX_RBUF_CSR_QEOPDW_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQEOPDWParityErr", 0, 0, 4549 CNTR_NORMAL, 4550 access_rbuf_csr_qeopdw_parity_err_cnt), 4551 [C_RX_RBUF_CSR_Q_NUM_OF_PKT_PARITY_ERR] = CNTR_ELEM( 4552 "RxRbufCsrQNumOfPktParityErr", 0, 0, 4553 CNTR_NORMAL, 4554 access_rx_rbuf_csr_q_num_of_pkt_parity_err_cnt), 4555 [C_RX_RBUF_CSR_Q_T1_PTR_PARITY_ERR] = CNTR_ELEM( 4556 "RxRbufCsrQTlPtrParityErr", 0, 0, 4557 CNTR_NORMAL, 4558 access_rx_rbuf_csr_q_t1_ptr_parity_err_cnt), 4559 [C_RX_RBUF_CSR_Q_HD_PTR_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQHdPtrParityErr", 0, 4560 0, CNTR_NORMAL, 4561 access_rx_rbuf_csr_q_hd_ptr_parity_err_cnt), 4562 [C_RX_RBUF_CSR_Q_VLD_BIT_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQVldBitParityErr", 0, 4563 0, CNTR_NORMAL, 4564 access_rx_rbuf_csr_q_vld_bit_parity_err_cnt), 4565 [C_RX_RBUF_CSR_Q_NEXT_BUF_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQNextBufParityErr", 4566 0, 0, CNTR_NORMAL, 4567 access_rx_rbuf_csr_q_next_buf_parity_err_cnt), 4568 [C_RX_RBUF_CSR_Q_ENT_CNT_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQEntCntParityErr", 0, 4569 0, CNTR_NORMAL, 4570 access_rx_rbuf_csr_q_ent_cnt_parity_err_cnt), 4571 [C_RX_RBUF_CSR_Q_HEAD_BUF_NUM_PARITY_ERR] = CNTR_ELEM( 4572 "RxRbufCsrQHeadBufNumParityErr", 0, 0, 4573 CNTR_NORMAL, 4574 access_rx_rbuf_csr_q_head_buf_num_parity_err_cnt), 4575 [C_RX_RBUF_BLOCK_LIST_READ_COR_ERR] = CNTR_ELEM("RxRbufBlockListReadCorErr", 0, 4576 0, CNTR_NORMAL, 4577 access_rx_rbuf_block_list_read_cor_err_cnt), 4578 [C_RX_RBUF_BLOCK_LIST_READ_UNC_ERR] = CNTR_ELEM("RxRbufBlockListReadUncErr", 0, 4579 0, CNTR_NORMAL, 4580 access_rx_rbuf_block_list_read_unc_err_cnt), 4581 [C_RX_RBUF_LOOKUP_DES_COR_ERR] = CNTR_ELEM("RxRbufLookupDesCorErr", 0, 0, 4582 CNTR_NORMAL, 4583 access_rx_rbuf_lookup_des_cor_err_cnt), 4584 [C_RX_RBUF_LOOKUP_DES_UNC_ERR] = CNTR_ELEM("RxRbufLookupDesUncErr", 0, 0, 4585 CNTR_NORMAL, 4586 access_rx_rbuf_lookup_des_unc_err_cnt), 4587 [C_RX_RBUF_LOOKUP_DES_REG_UNC_COR_ERR] = CNTR_ELEM( 4588 "RxRbufLookupDesRegUncCorErr", 0, 0, 4589 CNTR_NORMAL, 4590 access_rx_rbuf_lookup_des_reg_unc_cor_err_cnt), 4591 [C_RX_RBUF_LOOKUP_DES_REG_UNC_ERR] = CNTR_ELEM("RxRbufLookupDesRegUncErr", 0, 0, 4592 CNTR_NORMAL, 4593 access_rx_rbuf_lookup_des_reg_unc_err_cnt), 4594 [C_RX_RBUF_FREE_LIST_COR_ERR] = CNTR_ELEM("RxRbufFreeListCorErr", 0, 0, 4595 CNTR_NORMAL, 4596 access_rx_rbuf_free_list_cor_err_cnt), 4597 [C_RX_RBUF_FREE_LIST_UNC_ERR] = CNTR_ELEM("RxRbufFreeListUncErr", 0, 0, 4598 CNTR_NORMAL, 4599 access_rx_rbuf_free_list_unc_err_cnt), 4600 [C_RX_RCV_FSM_ENCODING_ERR] = CNTR_ELEM("RxRcvFsmEncodingErr", 0, 0, 4601 CNTR_NORMAL, 4602 access_rx_rcv_fsm_encoding_err_cnt), 4603 [C_RX_DMA_FLAG_COR_ERR] = CNTR_ELEM("RxDmaFlagCorErr", 0, 0, 4604 CNTR_NORMAL, 4605 access_rx_dma_flag_cor_err_cnt), 4606 [C_RX_DMA_FLAG_UNC_ERR] = CNTR_ELEM("RxDmaFlagUncErr", 0, 0, 4607 CNTR_NORMAL, 4608 access_rx_dma_flag_unc_err_cnt), 4609 [C_RX_DC_SOP_EOP_PARITY_ERR] = CNTR_ELEM("RxDcSopEopParityErr", 0, 0, 4610 CNTR_NORMAL, 4611 access_rx_dc_sop_eop_parity_err_cnt), 4612 [C_RX_RCV_CSR_PARITY_ERR] = CNTR_ELEM("RxRcvCsrParityErr", 0, 0, 4613 CNTR_NORMAL, 4614 access_rx_rcv_csr_parity_err_cnt), 4615 [C_RX_RCV_QP_MAP_TABLE_COR_ERR] = CNTR_ELEM("RxRcvQpMapTableCorErr", 0, 0, 4616 CNTR_NORMAL, 4617 access_rx_rcv_qp_map_table_cor_err_cnt), 4618 [C_RX_RCV_QP_MAP_TABLE_UNC_ERR] = CNTR_ELEM("RxRcvQpMapTableUncErr", 0, 0, 4619 CNTR_NORMAL, 4620 access_rx_rcv_qp_map_table_unc_err_cnt), 4621 [C_RX_RCV_DATA_COR_ERR] = CNTR_ELEM("RxRcvDataCorErr", 0, 0, 4622 CNTR_NORMAL, 4623 access_rx_rcv_data_cor_err_cnt), 4624 [C_RX_RCV_DATA_UNC_ERR] = CNTR_ELEM("RxRcvDataUncErr", 0, 0, 4625 CNTR_NORMAL, 4626 access_rx_rcv_data_unc_err_cnt), 4627 [C_RX_RCV_HDR_COR_ERR] = CNTR_ELEM("RxRcvHdrCorErr", 0, 0, 4628 CNTR_NORMAL, 4629 access_rx_rcv_hdr_cor_err_cnt), 4630 [C_RX_RCV_HDR_UNC_ERR] = CNTR_ELEM("RxRcvHdrUncErr", 0, 0, 4631 CNTR_NORMAL, 4632 access_rx_rcv_hdr_unc_err_cnt), 4633 [C_RX_DC_INTF_PARITY_ERR] = CNTR_ELEM("RxDcIntfParityErr", 0, 0, 4634 CNTR_NORMAL, 4635 access_rx_dc_intf_parity_err_cnt), 4636 [C_RX_DMA_CSR_COR_ERR] = CNTR_ELEM("RxDmaCsrCorErr", 0, 0, 4637 CNTR_NORMAL, 4638 access_rx_dma_csr_cor_err_cnt), 4639 /* SendPioErrStatus */ 4640 [C_PIO_PEC_SOP_HEAD_PARITY_ERR] = CNTR_ELEM("PioPecSopHeadParityErr", 0, 0, 4641 CNTR_NORMAL, 4642 access_pio_pec_sop_head_parity_err_cnt), 4643 [C_PIO_PCC_SOP_HEAD_PARITY_ERR] = CNTR_ELEM("PioPccSopHeadParityErr", 0, 0, 4644 CNTR_NORMAL, 4645 access_pio_pcc_sop_head_parity_err_cnt), 4646 [C_PIO_LAST_RETURNED_CNT_PARITY_ERR] = CNTR_ELEM("PioLastReturnedCntParityErr", 4647 0, 0, CNTR_NORMAL, 4648 access_pio_last_returned_cnt_parity_err_cnt), 4649 [C_PIO_CURRENT_FREE_CNT_PARITY_ERR] = CNTR_ELEM("PioCurrentFreeCntParityErr", 0, 4650 0, CNTR_NORMAL, 4651 access_pio_current_free_cnt_parity_err_cnt), 4652 [C_PIO_RSVD_31_ERR] = CNTR_ELEM("Pio Reserved 31", 0, 0, 4653 CNTR_NORMAL, 4654 access_pio_reserved_31_err_cnt), 4655 [C_PIO_RSVD_30_ERR] = CNTR_ELEM("Pio Reserved 30", 0, 0, 4656 CNTR_NORMAL, 4657 access_pio_reserved_30_err_cnt), 4658 [C_PIO_PPMC_SOP_LEN_ERR] = CNTR_ELEM("PioPpmcSopLenErr", 0, 0, 4659 CNTR_NORMAL, 4660 access_pio_ppmc_sop_len_err_cnt), 4661 [C_PIO_PPMC_BQC_MEM_PARITY_ERR] = CNTR_ELEM("PioPpmcBqcMemParityErr", 0, 0, 4662 CNTR_NORMAL, 4663 access_pio_ppmc_bqc_mem_parity_err_cnt), 4664 [C_PIO_VL_FIFO_PARITY_ERR] = CNTR_ELEM("PioVlFifoParityErr", 0, 0, 4665 CNTR_NORMAL, 4666 access_pio_vl_fifo_parity_err_cnt), 4667 [C_PIO_VLF_SOP_PARITY_ERR] = CNTR_ELEM("PioVlfSopParityErr", 0, 0, 4668 CNTR_NORMAL, 4669 access_pio_vlf_sop_parity_err_cnt), 4670 [C_PIO_VLF_V1_LEN_PARITY_ERR] = CNTR_ELEM("PioVlfVlLenParityErr", 0, 0, 4671 CNTR_NORMAL, 4672 access_pio_vlf_v1_len_parity_err_cnt), 4673 [C_PIO_BLOCK_QW_COUNT_PARITY_ERR] = CNTR_ELEM("PioBlockQwCountParityErr", 0, 0, 4674 CNTR_NORMAL, 4675 access_pio_block_qw_count_parity_err_cnt), 4676 [C_PIO_WRITE_QW_VALID_PARITY_ERR] = CNTR_ELEM("PioWriteQwValidParityErr", 0, 0, 4677 CNTR_NORMAL, 4678 access_pio_write_qw_valid_parity_err_cnt), 4679 [C_PIO_STATE_MACHINE_ERR] = CNTR_ELEM("PioStateMachineErr", 0, 0, 4680 CNTR_NORMAL, 4681 access_pio_state_machine_err_cnt), 4682 [C_PIO_WRITE_DATA_PARITY_ERR] = CNTR_ELEM("PioWriteDataParityErr", 0, 0, 4683 CNTR_NORMAL, 4684 access_pio_write_data_parity_err_cnt), 4685 [C_PIO_HOST_ADDR_MEM_COR_ERR] = CNTR_ELEM("PioHostAddrMemCorErr", 0, 0, 4686 CNTR_NORMAL, 4687 access_pio_host_addr_mem_cor_err_cnt), 4688 [C_PIO_HOST_ADDR_MEM_UNC_ERR] = CNTR_ELEM("PioHostAddrMemUncErr", 0, 0, 4689 CNTR_NORMAL, 4690 access_pio_host_addr_mem_unc_err_cnt), 4691 [C_PIO_PKT_EVICT_SM_OR_ARM_SM_ERR] = CNTR_ELEM("PioPktEvictSmOrArbSmErr", 0, 0, 4692 CNTR_NORMAL, 4693 access_pio_pkt_evict_sm_or_arb_sm_err_cnt), 4694 [C_PIO_INIT_SM_IN_ERR] = CNTR_ELEM("PioInitSmInErr", 0, 0, 4695 CNTR_NORMAL, 4696 access_pio_init_sm_in_err_cnt), 4697 [C_PIO_PPMC_PBL_FIFO_ERR] = CNTR_ELEM("PioPpmcPblFifoErr", 0, 0, 4698 CNTR_NORMAL, 4699 access_pio_ppmc_pbl_fifo_err_cnt), 4700 [C_PIO_CREDIT_RET_FIFO_PARITY_ERR] = CNTR_ELEM("PioCreditRetFifoParityErr", 0, 4701 0, CNTR_NORMAL, 4702 access_pio_credit_ret_fifo_parity_err_cnt), 4703 [C_PIO_V1_LEN_MEM_BANK1_COR_ERR] = CNTR_ELEM("PioVlLenMemBank1CorErr", 0, 0, 4704 CNTR_NORMAL, 4705 access_pio_v1_len_mem_bank1_cor_err_cnt), 4706 [C_PIO_V1_LEN_MEM_BANK0_COR_ERR] = CNTR_ELEM("PioVlLenMemBank0CorErr", 0, 0, 4707 CNTR_NORMAL, 4708 access_pio_v1_len_mem_bank0_cor_err_cnt), 4709 [C_PIO_V1_LEN_MEM_BANK1_UNC_ERR] = CNTR_ELEM("PioVlLenMemBank1UncErr", 0, 0, 4710 CNTR_NORMAL, 4711 access_pio_v1_len_mem_bank1_unc_err_cnt), 4712 [C_PIO_V1_LEN_MEM_BANK0_UNC_ERR] = CNTR_ELEM("PioVlLenMemBank0UncErr", 0, 0, 4713 CNTR_NORMAL, 4714 access_pio_v1_len_mem_bank0_unc_err_cnt), 4715 [C_PIO_SM_PKT_RESET_PARITY_ERR] = CNTR_ELEM("PioSmPktResetParityErr", 0, 0, 4716 CNTR_NORMAL, 4717 access_pio_sm_pkt_reset_parity_err_cnt), 4718 [C_PIO_PKT_EVICT_FIFO_PARITY_ERR] = CNTR_ELEM("PioPktEvictFifoParityErr", 0, 0, 4719 CNTR_NORMAL, 4720 access_pio_pkt_evict_fifo_parity_err_cnt), 4721 [C_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR] = CNTR_ELEM( 4722 "PioSbrdctrlCrrelFifoParityErr", 0, 0, 4723 CNTR_NORMAL, 4724 access_pio_sbrdctrl_crrel_fifo_parity_err_cnt), 4725 [C_PIO_SBRDCTL_CRREL_PARITY_ERR] = CNTR_ELEM("PioSbrdctlCrrelParityErr", 0, 0, 4726 CNTR_NORMAL, 4727 access_pio_sbrdctl_crrel_parity_err_cnt), 4728 [C_PIO_PEC_FIFO_PARITY_ERR] = CNTR_ELEM("PioPecFifoParityErr", 0, 0, 4729 CNTR_NORMAL, 4730 access_pio_pec_fifo_parity_err_cnt), 4731 [C_PIO_PCC_FIFO_PARITY_ERR] = CNTR_ELEM("PioPccFifoParityErr", 0, 0, 4732 CNTR_NORMAL, 4733 access_pio_pcc_fifo_parity_err_cnt), 4734 [C_PIO_SB_MEM_FIFO1_ERR] = CNTR_ELEM("PioSbMemFifo1Err", 0, 0, 4735 CNTR_NORMAL, 4736 access_pio_sb_mem_fifo1_err_cnt), 4737 [C_PIO_SB_MEM_FIFO0_ERR] = CNTR_ELEM("PioSbMemFifo0Err", 0, 0, 4738 CNTR_NORMAL, 4739 access_pio_sb_mem_fifo0_err_cnt), 4740 [C_PIO_CSR_PARITY_ERR] = CNTR_ELEM("PioCsrParityErr", 0, 0, 4741 CNTR_NORMAL, 4742 access_pio_csr_parity_err_cnt), 4743 [C_PIO_WRITE_ADDR_PARITY_ERR] = CNTR_ELEM("PioWriteAddrParityErr", 0, 0, 4744 CNTR_NORMAL, 4745 access_pio_write_addr_parity_err_cnt), 4746 [C_PIO_WRITE_BAD_CTXT_ERR] = CNTR_ELEM("PioWriteBadCtxtErr", 0, 0, 4747 CNTR_NORMAL, 4748 access_pio_write_bad_ctxt_err_cnt), 4749 /* SendDmaErrStatus */ 4750 [C_SDMA_PCIE_REQ_TRACKING_COR_ERR] = CNTR_ELEM("SDmaPcieReqTrackingCorErr", 0, 4751 0, CNTR_NORMAL, 4752 access_sdma_pcie_req_tracking_cor_err_cnt), 4753 [C_SDMA_PCIE_REQ_TRACKING_UNC_ERR] = CNTR_ELEM("SDmaPcieReqTrackingUncErr", 0, 4754 0, CNTR_NORMAL, 4755 access_sdma_pcie_req_tracking_unc_err_cnt), 4756 [C_SDMA_CSR_PARITY_ERR] = CNTR_ELEM("SDmaCsrParityErr", 0, 0, 4757 CNTR_NORMAL, 4758 access_sdma_csr_parity_err_cnt), 4759 [C_SDMA_RPY_TAG_ERR] = CNTR_ELEM("SDmaRpyTagErr", 0, 0, 4760 CNTR_NORMAL, 4761 access_sdma_rpy_tag_err_cnt), 4762 /* SendEgressErrStatus */ 4763 [C_TX_READ_PIO_MEMORY_CSR_UNC_ERR] = CNTR_ELEM("TxReadPioMemoryCsrUncErr", 0, 0, 4764 CNTR_NORMAL, 4765 access_tx_read_pio_memory_csr_unc_err_cnt), 4766 [C_TX_READ_SDMA_MEMORY_CSR_UNC_ERR] = CNTR_ELEM("TxReadSdmaMemoryCsrUncErr", 0, 4767 0, CNTR_NORMAL, 4768 access_tx_read_sdma_memory_csr_err_cnt), 4769 [C_TX_EGRESS_FIFO_COR_ERR] = CNTR_ELEM("TxEgressFifoCorErr", 0, 0, 4770 CNTR_NORMAL, 4771 access_tx_egress_fifo_cor_err_cnt), 4772 [C_TX_READ_PIO_MEMORY_COR_ERR] = CNTR_ELEM("TxReadPioMemoryCorErr", 0, 0, 4773 CNTR_NORMAL, 4774 access_tx_read_pio_memory_cor_err_cnt), 4775 [C_TX_READ_SDMA_MEMORY_COR_ERR] = CNTR_ELEM("TxReadSdmaMemoryCorErr", 0, 0, 4776 CNTR_NORMAL, 4777 access_tx_read_sdma_memory_cor_err_cnt), 4778 [C_TX_SB_HDR_COR_ERR] = CNTR_ELEM("TxSbHdrCorErr", 0, 0, 4779 CNTR_NORMAL, 4780 access_tx_sb_hdr_cor_err_cnt), 4781 [C_TX_CREDIT_OVERRUN_ERR] = CNTR_ELEM("TxCreditOverrunErr", 0, 0, 4782 CNTR_NORMAL, 4783 access_tx_credit_overrun_err_cnt), 4784 [C_TX_LAUNCH_FIFO8_COR_ERR] = CNTR_ELEM("TxLaunchFifo8CorErr", 0, 0, 4785 CNTR_NORMAL, 4786 access_tx_launch_fifo8_cor_err_cnt), 4787 [C_TX_LAUNCH_FIFO7_COR_ERR] = CNTR_ELEM("TxLaunchFifo7CorErr", 0, 0, 4788 CNTR_NORMAL, 4789 access_tx_launch_fifo7_cor_err_cnt), 4790 [C_TX_LAUNCH_FIFO6_COR_ERR] = CNTR_ELEM("TxLaunchFifo6CorErr", 0, 0, 4791 CNTR_NORMAL, 4792 access_tx_launch_fifo6_cor_err_cnt), 4793 [C_TX_LAUNCH_FIFO5_COR_ERR] = CNTR_ELEM("TxLaunchFifo5CorErr", 0, 0, 4794 CNTR_NORMAL, 4795 access_tx_launch_fifo5_cor_err_cnt), 4796 [C_TX_LAUNCH_FIFO4_COR_ERR] = CNTR_ELEM("TxLaunchFifo4CorErr", 0, 0, 4797 CNTR_NORMAL, 4798 access_tx_launch_fifo4_cor_err_cnt), 4799 [C_TX_LAUNCH_FIFO3_COR_ERR] = CNTR_ELEM("TxLaunchFifo3CorErr", 0, 0, 4800 CNTR_NORMAL, 4801 access_tx_launch_fifo3_cor_err_cnt), 4802 [C_TX_LAUNCH_FIFO2_COR_ERR] = CNTR_ELEM("TxLaunchFifo2CorErr", 0, 0, 4803 CNTR_NORMAL, 4804 access_tx_launch_fifo2_cor_err_cnt), 4805 [C_TX_LAUNCH_FIFO1_COR_ERR] = CNTR_ELEM("TxLaunchFifo1CorErr", 0, 0, 4806 CNTR_NORMAL, 4807 access_tx_launch_fifo1_cor_err_cnt), 4808 [C_TX_LAUNCH_FIFO0_COR_ERR] = CNTR_ELEM("TxLaunchFifo0CorErr", 0, 0, 4809 CNTR_NORMAL, 4810 access_tx_launch_fifo0_cor_err_cnt), 4811 [C_TX_CREDIT_RETURN_VL_ERR] = CNTR_ELEM("TxCreditReturnVLErr", 0, 0, 4812 CNTR_NORMAL, 4813 access_tx_credit_return_vl_err_cnt), 4814 [C_TX_HCRC_INSERTION_ERR] = CNTR_ELEM("TxHcrcInsertionErr", 0, 0, 4815 CNTR_NORMAL, 4816 access_tx_hcrc_insertion_err_cnt), 4817 [C_TX_EGRESS_FIFI_UNC_ERR] = CNTR_ELEM("TxEgressFifoUncErr", 0, 0, 4818 CNTR_NORMAL, 4819 access_tx_egress_fifo_unc_err_cnt), 4820 [C_TX_READ_PIO_MEMORY_UNC_ERR] = CNTR_ELEM("TxReadPioMemoryUncErr", 0, 0, 4821 CNTR_NORMAL, 4822 access_tx_read_pio_memory_unc_err_cnt), 4823 [C_TX_READ_SDMA_MEMORY_UNC_ERR] = CNTR_ELEM("TxReadSdmaMemoryUncErr", 0, 0, 4824 CNTR_NORMAL, 4825 access_tx_read_sdma_memory_unc_err_cnt), 4826 [C_TX_SB_HDR_UNC_ERR] = CNTR_ELEM("TxSbHdrUncErr", 0, 0, 4827 CNTR_NORMAL, 4828 access_tx_sb_hdr_unc_err_cnt), 4829 [C_TX_CREDIT_RETURN_PARITY_ERR] = CNTR_ELEM("TxCreditReturnParityErr", 0, 0, 4830 CNTR_NORMAL, 4831 access_tx_credit_return_partiy_err_cnt), 4832 [C_TX_LAUNCH_FIFO8_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo8UncOrParityErr", 4833 0, 0, CNTR_NORMAL, 4834 access_tx_launch_fifo8_unc_or_parity_err_cnt), 4835 [C_TX_LAUNCH_FIFO7_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo7UncOrParityErr", 4836 0, 0, CNTR_NORMAL, 4837 access_tx_launch_fifo7_unc_or_parity_err_cnt), 4838 [C_TX_LAUNCH_FIFO6_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo6UncOrParityErr", 4839 0, 0, CNTR_NORMAL, 4840 access_tx_launch_fifo6_unc_or_parity_err_cnt), 4841 [C_TX_LAUNCH_FIFO5_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo5UncOrParityErr", 4842 0, 0, CNTR_NORMAL, 4843 access_tx_launch_fifo5_unc_or_parity_err_cnt), 4844 [C_TX_LAUNCH_FIFO4_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo4UncOrParityErr", 4845 0, 0, CNTR_NORMAL, 4846 access_tx_launch_fifo4_unc_or_parity_err_cnt), 4847 [C_TX_LAUNCH_FIFO3_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo3UncOrParityErr", 4848 0, 0, CNTR_NORMAL, 4849 access_tx_launch_fifo3_unc_or_parity_err_cnt), 4850 [C_TX_LAUNCH_FIFO2_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo2UncOrParityErr", 4851 0, 0, CNTR_NORMAL, 4852 access_tx_launch_fifo2_unc_or_parity_err_cnt), 4853 [C_TX_LAUNCH_FIFO1_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo1UncOrParityErr", 4854 0, 0, CNTR_NORMAL, 4855 access_tx_launch_fifo1_unc_or_parity_err_cnt), 4856 [C_TX_LAUNCH_FIFO0_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo0UncOrParityErr", 4857 0, 0, CNTR_NORMAL, 4858 access_tx_launch_fifo0_unc_or_parity_err_cnt), 4859 [C_TX_SDMA15_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma15DisallowedPacketErr", 4860 0, 0, CNTR_NORMAL, 4861 access_tx_sdma15_disallowed_packet_err_cnt), 4862 [C_TX_SDMA14_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma14DisallowedPacketErr", 4863 0, 0, CNTR_NORMAL, 4864 access_tx_sdma14_disallowed_packet_err_cnt), 4865 [C_TX_SDMA13_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma13DisallowedPacketErr", 4866 0, 0, CNTR_NORMAL, 4867 access_tx_sdma13_disallowed_packet_err_cnt), 4868 [C_TX_SDMA12_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma12DisallowedPacketErr", 4869 0, 0, CNTR_NORMAL, 4870 access_tx_sdma12_disallowed_packet_err_cnt), 4871 [C_TX_SDMA11_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma11DisallowedPacketErr", 4872 0, 0, CNTR_NORMAL, 4873 access_tx_sdma11_disallowed_packet_err_cnt), 4874 [C_TX_SDMA10_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma10DisallowedPacketErr", 4875 0, 0, CNTR_NORMAL, 4876 access_tx_sdma10_disallowed_packet_err_cnt), 4877 [C_TX_SDMA9_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma9DisallowedPacketErr", 4878 0, 0, CNTR_NORMAL, 4879 access_tx_sdma9_disallowed_packet_err_cnt), 4880 [C_TX_SDMA8_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma8DisallowedPacketErr", 4881 0, 0, CNTR_NORMAL, 4882 access_tx_sdma8_disallowed_packet_err_cnt), 4883 [C_TX_SDMA7_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma7DisallowedPacketErr", 4884 0, 0, CNTR_NORMAL, 4885 access_tx_sdma7_disallowed_packet_err_cnt), 4886 [C_TX_SDMA6_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma6DisallowedPacketErr", 4887 0, 0, CNTR_NORMAL, 4888 access_tx_sdma6_disallowed_packet_err_cnt), 4889 [C_TX_SDMA5_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma5DisallowedPacketErr", 4890 0, 0, CNTR_NORMAL, 4891 access_tx_sdma5_disallowed_packet_err_cnt), 4892 [C_TX_SDMA4_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma4DisallowedPacketErr", 4893 0, 0, CNTR_NORMAL, 4894 access_tx_sdma4_disallowed_packet_err_cnt), 4895 [C_TX_SDMA3_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma3DisallowedPacketErr", 4896 0, 0, CNTR_NORMAL, 4897 access_tx_sdma3_disallowed_packet_err_cnt), 4898 [C_TX_SDMA2_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma2DisallowedPacketErr", 4899 0, 0, CNTR_NORMAL, 4900 access_tx_sdma2_disallowed_packet_err_cnt), 4901 [C_TX_SDMA1_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma1DisallowedPacketErr", 4902 0, 0, CNTR_NORMAL, 4903 access_tx_sdma1_disallowed_packet_err_cnt), 4904 [C_TX_SDMA0_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma0DisallowedPacketErr", 4905 0, 0, CNTR_NORMAL, 4906 access_tx_sdma0_disallowed_packet_err_cnt), 4907 [C_TX_CONFIG_PARITY_ERR] = CNTR_ELEM("TxConfigParityErr", 0, 0, 4908 CNTR_NORMAL, 4909 access_tx_config_parity_err_cnt), 4910 [C_TX_SBRD_CTL_CSR_PARITY_ERR] = CNTR_ELEM("TxSbrdCtlCsrParityErr", 0, 0, 4911 CNTR_NORMAL, 4912 access_tx_sbrd_ctl_csr_parity_err_cnt), 4913 [C_TX_LAUNCH_CSR_PARITY_ERR] = CNTR_ELEM("TxLaunchCsrParityErr", 0, 0, 4914 CNTR_NORMAL, 4915 access_tx_launch_csr_parity_err_cnt), 4916 [C_TX_ILLEGAL_CL_ERR] = CNTR_ELEM("TxIllegalVLErr", 0, 0, 4917 CNTR_NORMAL, 4918 access_tx_illegal_vl_err_cnt), 4919 [C_TX_SBRD_CTL_STATE_MACHINE_PARITY_ERR] = CNTR_ELEM( 4920 "TxSbrdCtlStateMachineParityErr", 0, 0, 4921 CNTR_NORMAL, 4922 access_tx_sbrd_ctl_state_machine_parity_err_cnt), 4923 [C_TX_RESERVED_10] = CNTR_ELEM("Tx Egress Reserved 10", 0, 0, 4924 CNTR_NORMAL, 4925 access_egress_reserved_10_err_cnt), 4926 [C_TX_RESERVED_9] = CNTR_ELEM("Tx Egress Reserved 9", 0, 0, 4927 CNTR_NORMAL, 4928 access_egress_reserved_9_err_cnt), 4929 [C_TX_SDMA_LAUNCH_INTF_PARITY_ERR] = CNTR_ELEM("TxSdmaLaunchIntfParityErr", 4930 0, 0, CNTR_NORMAL, 4931 access_tx_sdma_launch_intf_parity_err_cnt), 4932 [C_TX_PIO_LAUNCH_INTF_PARITY_ERR] = CNTR_ELEM("TxPioLaunchIntfParityErr", 0, 0, 4933 CNTR_NORMAL, 4934 access_tx_pio_launch_intf_parity_err_cnt), 4935 [C_TX_RESERVED_6] = CNTR_ELEM("Tx Egress Reserved 6", 0, 0, 4936 CNTR_NORMAL, 4937 access_egress_reserved_6_err_cnt), 4938 [C_TX_INCORRECT_LINK_STATE_ERR] = CNTR_ELEM("TxIncorrectLinkStateErr", 0, 0, 4939 CNTR_NORMAL, 4940 access_tx_incorrect_link_state_err_cnt), 4941 [C_TX_LINK_DOWN_ERR] = CNTR_ELEM("TxLinkdownErr", 0, 0, 4942 CNTR_NORMAL, 4943 access_tx_linkdown_err_cnt), 4944 [C_TX_EGRESS_FIFO_UNDERRUN_OR_PARITY_ERR] = CNTR_ELEM( 4945 "EgressFifoUnderrunOrParityErr", 0, 0, 4946 CNTR_NORMAL, 4947 access_tx_egress_fifi_underrun_or_parity_err_cnt), 4948 [C_TX_RESERVED_2] = CNTR_ELEM("Tx Egress Reserved 2", 0, 0, 4949 CNTR_NORMAL, 4950 access_egress_reserved_2_err_cnt), 4951 [C_TX_PKT_INTEGRITY_MEM_UNC_ERR] = CNTR_ELEM("TxPktIntegrityMemUncErr", 0, 0, 4952 CNTR_NORMAL, 4953 access_tx_pkt_integrity_mem_unc_err_cnt), 4954 [C_TX_PKT_INTEGRITY_MEM_COR_ERR] = CNTR_ELEM("TxPktIntegrityMemCorErr", 0, 0, 4955 CNTR_NORMAL, 4956 access_tx_pkt_integrity_mem_cor_err_cnt), 4957 /* SendErrStatus */ 4958 [C_SEND_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("SendCsrWriteBadAddrErr", 0, 0, 4959 CNTR_NORMAL, 4960 access_send_csr_write_bad_addr_err_cnt), 4961 [C_SEND_CSR_READ_BAD_ADD_ERR] = CNTR_ELEM("SendCsrReadBadAddrErr", 0, 0, 4962 CNTR_NORMAL, 4963 access_send_csr_read_bad_addr_err_cnt), 4964 [C_SEND_CSR_PARITY_ERR] = CNTR_ELEM("SendCsrParityErr", 0, 0, 4965 CNTR_NORMAL, 4966 access_send_csr_parity_cnt), 4967 /* SendCtxtErrStatus */ 4968 [C_PIO_WRITE_OUT_OF_BOUNDS_ERR] = CNTR_ELEM("PioWriteOutOfBoundsErr", 0, 0, 4969 CNTR_NORMAL, 4970 access_pio_write_out_of_bounds_err_cnt), 4971 [C_PIO_WRITE_OVERFLOW_ERR] = CNTR_ELEM("PioWriteOverflowErr", 0, 0, 4972 CNTR_NORMAL, 4973 access_pio_write_overflow_err_cnt), 4974 [C_PIO_WRITE_CROSSES_BOUNDARY_ERR] = CNTR_ELEM("PioWriteCrossesBoundaryErr", 4975 0, 0, CNTR_NORMAL, 4976 access_pio_write_crosses_boundary_err_cnt), 4977 [C_PIO_DISALLOWED_PACKET_ERR] = CNTR_ELEM("PioDisallowedPacketErr", 0, 0, 4978 CNTR_NORMAL, 4979 access_pio_disallowed_packet_err_cnt), 4980 [C_PIO_INCONSISTENT_SOP_ERR] = CNTR_ELEM("PioInconsistentSopErr", 0, 0, 4981 CNTR_NORMAL, 4982 access_pio_inconsistent_sop_err_cnt), 4983 /* SendDmaEngErrStatus */ 4984 [C_SDMA_HEADER_REQUEST_FIFO_COR_ERR] = CNTR_ELEM("SDmaHeaderRequestFifoCorErr", 4985 0, 0, CNTR_NORMAL, 4986 access_sdma_header_request_fifo_cor_err_cnt), 4987 [C_SDMA_HEADER_STORAGE_COR_ERR] = CNTR_ELEM("SDmaHeaderStorageCorErr", 0, 0, 4988 CNTR_NORMAL, 4989 access_sdma_header_storage_cor_err_cnt), 4990 [C_SDMA_PACKET_TRACKING_COR_ERR] = CNTR_ELEM("SDmaPacketTrackingCorErr", 0, 0, 4991 CNTR_NORMAL, 4992 access_sdma_packet_tracking_cor_err_cnt), 4993 [C_SDMA_ASSEMBLY_COR_ERR] = CNTR_ELEM("SDmaAssemblyCorErr", 0, 0, 4994 CNTR_NORMAL, 4995 access_sdma_assembly_cor_err_cnt), 4996 [C_SDMA_DESC_TABLE_COR_ERR] = CNTR_ELEM("SDmaDescTableCorErr", 0, 0, 4997 CNTR_NORMAL, 4998 access_sdma_desc_table_cor_err_cnt), 4999 [C_SDMA_HEADER_REQUEST_FIFO_UNC_ERR] = CNTR_ELEM("SDmaHeaderRequestFifoUncErr", 5000 0, 0, CNTR_NORMAL, 5001 access_sdma_header_request_fifo_unc_err_cnt), 5002 [C_SDMA_HEADER_STORAGE_UNC_ERR] = CNTR_ELEM("SDmaHeaderStorageUncErr", 0, 0, 5003 CNTR_NORMAL, 5004 access_sdma_header_storage_unc_err_cnt), 5005 [C_SDMA_PACKET_TRACKING_UNC_ERR] = CNTR_ELEM("SDmaPacketTrackingUncErr", 0, 0, 5006 CNTR_NORMAL, 5007 access_sdma_packet_tracking_unc_err_cnt), 5008 [C_SDMA_ASSEMBLY_UNC_ERR] = CNTR_ELEM("SDmaAssemblyUncErr", 0, 0, 5009 CNTR_NORMAL, 5010 access_sdma_assembly_unc_err_cnt), 5011 [C_SDMA_DESC_TABLE_UNC_ERR] = CNTR_ELEM("SDmaDescTableUncErr", 0, 0, 5012 CNTR_NORMAL, 5013 access_sdma_desc_table_unc_err_cnt), 5014 [C_SDMA_TIMEOUT_ERR] = CNTR_ELEM("SDmaTimeoutErr", 0, 0, 5015 CNTR_NORMAL, 5016 access_sdma_timeout_err_cnt), 5017 [C_SDMA_HEADER_LENGTH_ERR] = CNTR_ELEM("SDmaHeaderLengthErr", 0, 0, 5018 CNTR_NORMAL, 5019 access_sdma_header_length_err_cnt), 5020 [C_SDMA_HEADER_ADDRESS_ERR] = CNTR_ELEM("SDmaHeaderAddressErr", 0, 0, 5021 CNTR_NORMAL, 5022 access_sdma_header_address_err_cnt), 5023 [C_SDMA_HEADER_SELECT_ERR] = CNTR_ELEM("SDmaHeaderSelectErr", 0, 0, 5024 CNTR_NORMAL, 5025 access_sdma_header_select_err_cnt), 5026 [C_SMDA_RESERVED_9] = CNTR_ELEM("SDma Reserved 9", 0, 0, 5027 CNTR_NORMAL, 5028 access_sdma_reserved_9_err_cnt), 5029 [C_SDMA_PACKET_DESC_OVERFLOW_ERR] = CNTR_ELEM("SDmaPacketDescOverflowErr", 0, 0, 5030 CNTR_NORMAL, 5031 access_sdma_packet_desc_overflow_err_cnt), 5032 [C_SDMA_LENGTH_MISMATCH_ERR] = CNTR_ELEM("SDmaLengthMismatchErr", 0, 0, 5033 CNTR_NORMAL, 5034 access_sdma_length_mismatch_err_cnt), 5035 [C_SDMA_HALT_ERR] = CNTR_ELEM("SDmaHaltErr", 0, 0, 5036 CNTR_NORMAL, 5037 access_sdma_halt_err_cnt), 5038 [C_SDMA_MEM_READ_ERR] = CNTR_ELEM("SDmaMemReadErr", 0, 0, 5039 CNTR_NORMAL, 5040 access_sdma_mem_read_err_cnt), 5041 [C_SDMA_FIRST_DESC_ERR] = CNTR_ELEM("SDmaFirstDescErr", 0, 0, 5042 CNTR_NORMAL, 5043 access_sdma_first_desc_err_cnt), 5044 [C_SDMA_TAIL_OUT_OF_BOUNDS_ERR] = CNTR_ELEM("SDmaTailOutOfBoundsErr", 0, 0, 5045 CNTR_NORMAL, 5046 access_sdma_tail_out_of_bounds_err_cnt), 5047 [C_SDMA_TOO_LONG_ERR] = CNTR_ELEM("SDmaTooLongErr", 0, 0, 5048 CNTR_NORMAL, 5049 access_sdma_too_long_err_cnt), 5050 [C_SDMA_GEN_MISMATCH_ERR] = CNTR_ELEM("SDmaGenMismatchErr", 0, 0, 5051 CNTR_NORMAL, 5052 access_sdma_gen_mismatch_err_cnt), 5053 [C_SDMA_WRONG_DW_ERR] = CNTR_ELEM("SDmaWrongDwErr", 0, 0, 5054 CNTR_NORMAL, 5055 access_sdma_wrong_dw_err_cnt), 5056 }; 5057 5058 static struct cntr_entry port_cntrs[PORT_CNTR_LAST] = { 5059 [C_TX_UNSUP_VL] = TXE32_PORT_CNTR_ELEM(TxUnVLErr, SEND_UNSUP_VL_ERR_CNT, 5060 CNTR_NORMAL), 5061 [C_TX_INVAL_LEN] = TXE32_PORT_CNTR_ELEM(TxInvalLen, SEND_LEN_ERR_CNT, 5062 CNTR_NORMAL), 5063 [C_TX_MM_LEN_ERR] = TXE32_PORT_CNTR_ELEM(TxMMLenErr, SEND_MAX_MIN_LEN_ERR_CNT, 5064 CNTR_NORMAL), 5065 [C_TX_UNDERRUN] = TXE32_PORT_CNTR_ELEM(TxUnderrun, SEND_UNDERRUN_CNT, 5066 CNTR_NORMAL), 5067 [C_TX_FLOW_STALL] = TXE32_PORT_CNTR_ELEM(TxFlowStall, SEND_FLOW_STALL_CNT, 5068 CNTR_NORMAL), 5069 [C_TX_DROPPED] = TXE32_PORT_CNTR_ELEM(TxDropped, SEND_DROPPED_PKT_CNT, 5070 CNTR_NORMAL), 5071 [C_TX_HDR_ERR] = TXE32_PORT_CNTR_ELEM(TxHdrErr, SEND_HEADERS_ERR_CNT, 5072 CNTR_NORMAL), 5073 [C_TX_PKT] = TXE64_PORT_CNTR_ELEM(TxPkt, SEND_DATA_PKT_CNT, CNTR_NORMAL), 5074 [C_TX_WORDS] = TXE64_PORT_CNTR_ELEM(TxWords, SEND_DWORD_CNT, CNTR_NORMAL), 5075 [C_TX_WAIT] = TXE64_PORT_CNTR_ELEM(TxWait, SEND_WAIT_CNT, CNTR_SYNTH), 5076 [C_TX_FLIT_VL] = TXE64_PORT_CNTR_ELEM(TxFlitVL, SEND_DATA_VL0_CNT, 5077 CNTR_SYNTH | CNTR_VL), 5078 [C_TX_PKT_VL] = TXE64_PORT_CNTR_ELEM(TxPktVL, SEND_DATA_PKT_VL0_CNT, 5079 CNTR_SYNTH | CNTR_VL), 5080 [C_TX_WAIT_VL] = TXE64_PORT_CNTR_ELEM(TxWaitVL, SEND_WAIT_VL0_CNT, 5081 CNTR_SYNTH | CNTR_VL), 5082 [C_RX_PKT] = RXE64_PORT_CNTR_ELEM(RxPkt, RCV_DATA_PKT_CNT, CNTR_NORMAL), 5083 [C_RX_WORDS] = RXE64_PORT_CNTR_ELEM(RxWords, RCV_DWORD_CNT, CNTR_NORMAL), 5084 [C_SW_LINK_DOWN] = CNTR_ELEM("SwLinkDown", 0, 0, CNTR_SYNTH | CNTR_32BIT, 5085 access_sw_link_dn_cnt), 5086 [C_SW_LINK_UP] = CNTR_ELEM("SwLinkUp", 0, 0, CNTR_SYNTH | CNTR_32BIT, 5087 access_sw_link_up_cnt), 5088 [C_SW_UNKNOWN_FRAME] = CNTR_ELEM("UnknownFrame", 0, 0, CNTR_NORMAL, 5089 access_sw_unknown_frame_cnt), 5090 [C_SW_XMIT_DSCD] = CNTR_ELEM("XmitDscd", 0, 0, CNTR_SYNTH | CNTR_32BIT, 5091 access_sw_xmit_discards), 5092 [C_SW_XMIT_DSCD_VL] = CNTR_ELEM("XmitDscdVl", 0, 0, 5093 CNTR_SYNTH | CNTR_32BIT | CNTR_VL, 5094 access_sw_xmit_discards), 5095 [C_SW_XMIT_CSTR_ERR] = CNTR_ELEM("XmitCstrErr", 0, 0, CNTR_SYNTH, 5096 access_xmit_constraint_errs), 5097 [C_SW_RCV_CSTR_ERR] = CNTR_ELEM("RcvCstrErr", 0, 0, CNTR_SYNTH, 5098 access_rcv_constraint_errs), 5099 [C_SW_IBP_LOOP_PKTS] = SW_IBP_CNTR(LoopPkts, loop_pkts), 5100 [C_SW_IBP_RC_RESENDS] = SW_IBP_CNTR(RcResend, rc_resends), 5101 [C_SW_IBP_RNR_NAKS] = SW_IBP_CNTR(RnrNak, rnr_naks), 5102 [C_SW_IBP_OTHER_NAKS] = SW_IBP_CNTR(OtherNak, other_naks), 5103 [C_SW_IBP_RC_TIMEOUTS] = SW_IBP_CNTR(RcTimeOut, rc_timeouts), 5104 [C_SW_IBP_PKT_DROPS] = SW_IBP_CNTR(PktDrop, pkt_drops), 5105 [C_SW_IBP_DMA_WAIT] = SW_IBP_CNTR(DmaWait, dmawait), 5106 [C_SW_IBP_RC_SEQNAK] = SW_IBP_CNTR(RcSeqNak, rc_seqnak), 5107 [C_SW_IBP_RC_DUPREQ] = SW_IBP_CNTR(RcDupRew, rc_dupreq), 5108 [C_SW_IBP_RDMA_SEQ] = SW_IBP_CNTR(RdmaSeq, rdma_seq), 5109 [C_SW_IBP_UNALIGNED] = SW_IBP_CNTR(Unaligned, unaligned), 5110 [C_SW_IBP_SEQ_NAK] = SW_IBP_CNTR(SeqNak, seq_naks), 5111 [C_SW_IBP_RC_CRWAITS] = SW_IBP_CNTR(RcCrWait, rc_crwaits), 5112 [C_SW_CPU_RC_ACKS] = CNTR_ELEM("RcAcks", 0, 0, CNTR_NORMAL, 5113 access_sw_cpu_rc_acks), 5114 [C_SW_CPU_RC_QACKS] = CNTR_ELEM("RcQacks", 0, 0, CNTR_NORMAL, 5115 access_sw_cpu_rc_qacks), 5116 [C_SW_CPU_RC_DELAYED_COMP] = CNTR_ELEM("RcDelayComp", 0, 0, CNTR_NORMAL, 5117 access_sw_cpu_rc_delayed_comp), 5118 [OVR_LBL(0)] = OVR_ELM(0), [OVR_LBL(1)] = OVR_ELM(1), 5119 [OVR_LBL(2)] = OVR_ELM(2), [OVR_LBL(3)] = OVR_ELM(3), 5120 [OVR_LBL(4)] = OVR_ELM(4), [OVR_LBL(5)] = OVR_ELM(5), 5121 [OVR_LBL(6)] = OVR_ELM(6), [OVR_LBL(7)] = OVR_ELM(7), 5122 [OVR_LBL(8)] = OVR_ELM(8), [OVR_LBL(9)] = OVR_ELM(9), 5123 [OVR_LBL(10)] = OVR_ELM(10), [OVR_LBL(11)] = OVR_ELM(11), 5124 [OVR_LBL(12)] = OVR_ELM(12), [OVR_LBL(13)] = OVR_ELM(13), 5125 [OVR_LBL(14)] = OVR_ELM(14), [OVR_LBL(15)] = OVR_ELM(15), 5126 [OVR_LBL(16)] = OVR_ELM(16), [OVR_LBL(17)] = OVR_ELM(17), 5127 [OVR_LBL(18)] = OVR_ELM(18), [OVR_LBL(19)] = OVR_ELM(19), 5128 [OVR_LBL(20)] = OVR_ELM(20), [OVR_LBL(21)] = OVR_ELM(21), 5129 [OVR_LBL(22)] = OVR_ELM(22), [OVR_LBL(23)] = OVR_ELM(23), 5130 [OVR_LBL(24)] = OVR_ELM(24), [OVR_LBL(25)] = OVR_ELM(25), 5131 [OVR_LBL(26)] = OVR_ELM(26), [OVR_LBL(27)] = OVR_ELM(27), 5132 [OVR_LBL(28)] = OVR_ELM(28), [OVR_LBL(29)] = OVR_ELM(29), 5133 [OVR_LBL(30)] = OVR_ELM(30), [OVR_LBL(31)] = OVR_ELM(31), 5134 [OVR_LBL(32)] = OVR_ELM(32), [OVR_LBL(33)] = OVR_ELM(33), 5135 [OVR_LBL(34)] = OVR_ELM(34), [OVR_LBL(35)] = OVR_ELM(35), 5136 [OVR_LBL(36)] = OVR_ELM(36), [OVR_LBL(37)] = OVR_ELM(37), 5137 [OVR_LBL(38)] = OVR_ELM(38), [OVR_LBL(39)] = OVR_ELM(39), 5138 [OVR_LBL(40)] = OVR_ELM(40), [OVR_LBL(41)] = OVR_ELM(41), 5139 [OVR_LBL(42)] = OVR_ELM(42), [OVR_LBL(43)] = OVR_ELM(43), 5140 [OVR_LBL(44)] = OVR_ELM(44), [OVR_LBL(45)] = OVR_ELM(45), 5141 [OVR_LBL(46)] = OVR_ELM(46), [OVR_LBL(47)] = OVR_ELM(47), 5142 [OVR_LBL(48)] = OVR_ELM(48), [OVR_LBL(49)] = OVR_ELM(49), 5143 [OVR_LBL(50)] = OVR_ELM(50), [OVR_LBL(51)] = OVR_ELM(51), 5144 [OVR_LBL(52)] = OVR_ELM(52), [OVR_LBL(53)] = OVR_ELM(53), 5145 [OVR_LBL(54)] = OVR_ELM(54), [OVR_LBL(55)] = OVR_ELM(55), 5146 [OVR_LBL(56)] = OVR_ELM(56), [OVR_LBL(57)] = OVR_ELM(57), 5147 [OVR_LBL(58)] = OVR_ELM(58), [OVR_LBL(59)] = OVR_ELM(59), 5148 [OVR_LBL(60)] = OVR_ELM(60), [OVR_LBL(61)] = OVR_ELM(61), 5149 [OVR_LBL(62)] = OVR_ELM(62), [OVR_LBL(63)] = OVR_ELM(63), 5150 [OVR_LBL(64)] = OVR_ELM(64), [OVR_LBL(65)] = OVR_ELM(65), 5151 [OVR_LBL(66)] = OVR_ELM(66), [OVR_LBL(67)] = OVR_ELM(67), 5152 [OVR_LBL(68)] = OVR_ELM(68), [OVR_LBL(69)] = OVR_ELM(69), 5153 [OVR_LBL(70)] = OVR_ELM(70), [OVR_LBL(71)] = OVR_ELM(71), 5154 [OVR_LBL(72)] = OVR_ELM(72), [OVR_LBL(73)] = OVR_ELM(73), 5155 [OVR_LBL(74)] = OVR_ELM(74), [OVR_LBL(75)] = OVR_ELM(75), 5156 [OVR_LBL(76)] = OVR_ELM(76), [OVR_LBL(77)] = OVR_ELM(77), 5157 [OVR_LBL(78)] = OVR_ELM(78), [OVR_LBL(79)] = OVR_ELM(79), 5158 [OVR_LBL(80)] = OVR_ELM(80), [OVR_LBL(81)] = OVR_ELM(81), 5159 [OVR_LBL(82)] = OVR_ELM(82), [OVR_LBL(83)] = OVR_ELM(83), 5160 [OVR_LBL(84)] = OVR_ELM(84), [OVR_LBL(85)] = OVR_ELM(85), 5161 [OVR_LBL(86)] = OVR_ELM(86), [OVR_LBL(87)] = OVR_ELM(87), 5162 [OVR_LBL(88)] = OVR_ELM(88), [OVR_LBL(89)] = OVR_ELM(89), 5163 [OVR_LBL(90)] = OVR_ELM(90), [OVR_LBL(91)] = OVR_ELM(91), 5164 [OVR_LBL(92)] = OVR_ELM(92), [OVR_LBL(93)] = OVR_ELM(93), 5165 [OVR_LBL(94)] = OVR_ELM(94), [OVR_LBL(95)] = OVR_ELM(95), 5166 [OVR_LBL(96)] = OVR_ELM(96), [OVR_LBL(97)] = OVR_ELM(97), 5167 [OVR_LBL(98)] = OVR_ELM(98), [OVR_LBL(99)] = OVR_ELM(99), 5168 [OVR_LBL(100)] = OVR_ELM(100), [OVR_LBL(101)] = OVR_ELM(101), 5169 [OVR_LBL(102)] = OVR_ELM(102), [OVR_LBL(103)] = OVR_ELM(103), 5170 [OVR_LBL(104)] = OVR_ELM(104), [OVR_LBL(105)] = OVR_ELM(105), 5171 [OVR_LBL(106)] = OVR_ELM(106), [OVR_LBL(107)] = OVR_ELM(107), 5172 [OVR_LBL(108)] = OVR_ELM(108), [OVR_LBL(109)] = OVR_ELM(109), 5173 [OVR_LBL(110)] = OVR_ELM(110), [OVR_LBL(111)] = OVR_ELM(111), 5174 [OVR_LBL(112)] = OVR_ELM(112), [OVR_LBL(113)] = OVR_ELM(113), 5175 [OVR_LBL(114)] = OVR_ELM(114), [OVR_LBL(115)] = OVR_ELM(115), 5176 [OVR_LBL(116)] = OVR_ELM(116), [OVR_LBL(117)] = OVR_ELM(117), 5177 [OVR_LBL(118)] = OVR_ELM(118), [OVR_LBL(119)] = OVR_ELM(119), 5178 [OVR_LBL(120)] = OVR_ELM(120), [OVR_LBL(121)] = OVR_ELM(121), 5179 [OVR_LBL(122)] = OVR_ELM(122), [OVR_LBL(123)] = OVR_ELM(123), 5180 [OVR_LBL(124)] = OVR_ELM(124), [OVR_LBL(125)] = OVR_ELM(125), 5181 [OVR_LBL(126)] = OVR_ELM(126), [OVR_LBL(127)] = OVR_ELM(127), 5182 [OVR_LBL(128)] = OVR_ELM(128), [OVR_LBL(129)] = OVR_ELM(129), 5183 [OVR_LBL(130)] = OVR_ELM(130), [OVR_LBL(131)] = OVR_ELM(131), 5184 [OVR_LBL(132)] = OVR_ELM(132), [OVR_LBL(133)] = OVR_ELM(133), 5185 [OVR_LBL(134)] = OVR_ELM(134), [OVR_LBL(135)] = OVR_ELM(135), 5186 [OVR_LBL(136)] = OVR_ELM(136), [OVR_LBL(137)] = OVR_ELM(137), 5187 [OVR_LBL(138)] = OVR_ELM(138), [OVR_LBL(139)] = OVR_ELM(139), 5188 [OVR_LBL(140)] = OVR_ELM(140), [OVR_LBL(141)] = OVR_ELM(141), 5189 [OVR_LBL(142)] = OVR_ELM(142), [OVR_LBL(143)] = OVR_ELM(143), 5190 [OVR_LBL(144)] = OVR_ELM(144), [OVR_LBL(145)] = OVR_ELM(145), 5191 [OVR_LBL(146)] = OVR_ELM(146), [OVR_LBL(147)] = OVR_ELM(147), 5192 [OVR_LBL(148)] = OVR_ELM(148), [OVR_LBL(149)] = OVR_ELM(149), 5193 [OVR_LBL(150)] = OVR_ELM(150), [OVR_LBL(151)] = OVR_ELM(151), 5194 [OVR_LBL(152)] = OVR_ELM(152), [OVR_LBL(153)] = OVR_ELM(153), 5195 [OVR_LBL(154)] = OVR_ELM(154), [OVR_LBL(155)] = OVR_ELM(155), 5196 [OVR_LBL(156)] = OVR_ELM(156), [OVR_LBL(157)] = OVR_ELM(157), 5197 [OVR_LBL(158)] = OVR_ELM(158), [OVR_LBL(159)] = OVR_ELM(159), 5198 }; 5199 5200 /* ======================================================================== */ 5201 5202 /* return true if this is chip revision revision a */ 5203 int is_ax(struct hfi1_devdata *dd) 5204 { 5205 u8 chip_rev_minor = 5206 dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT 5207 & CCE_REVISION_CHIP_REV_MINOR_MASK; 5208 return (chip_rev_minor & 0xf0) == 0; 5209 } 5210 5211 /* return true if this is chip revision revision b */ 5212 int is_bx(struct hfi1_devdata *dd) 5213 { 5214 u8 chip_rev_minor = 5215 dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT 5216 & CCE_REVISION_CHIP_REV_MINOR_MASK; 5217 return (chip_rev_minor & 0xF0) == 0x10; 5218 } 5219 5220 /* return true is kernel urg disabled for rcd */ 5221 bool is_urg_masked(struct hfi1_ctxtdata *rcd) 5222 { 5223 u64 mask; 5224 u32 is = IS_RCVURGENT_START + rcd->ctxt; 5225 u8 bit = is % 64; 5226 5227 mask = read_csr(rcd->dd, CCE_INT_MASK + (8 * (is / 64))); 5228 return !(mask & BIT_ULL(bit)); 5229 } 5230 5231 /* 5232 * Append string s to buffer buf. Arguments curp and len are the current 5233 * position and remaining length, respectively. 5234 * 5235 * return 0 on success, 1 on out of room 5236 */ 5237 static int append_str(char *buf, char **curp, int *lenp, const char *s) 5238 { 5239 char *p = *curp; 5240 int len = *lenp; 5241 int result = 0; /* success */ 5242 char c; 5243 5244 /* add a comma, if first in the buffer */ 5245 if (p != buf) { 5246 if (len == 0) { 5247 result = 1; /* out of room */ 5248 goto done; 5249 } 5250 *p++ = ','; 5251 len--; 5252 } 5253 5254 /* copy the string */ 5255 while ((c = *s++) != 0) { 5256 if (len == 0) { 5257 result = 1; /* out of room */ 5258 goto done; 5259 } 5260 *p++ = c; 5261 len--; 5262 } 5263 5264 done: 5265 /* write return values */ 5266 *curp = p; 5267 *lenp = len; 5268 5269 return result; 5270 } 5271 5272 /* 5273 * Using the given flag table, print a comma separated string into 5274 * the buffer. End in '*' if the buffer is too short. 5275 */ 5276 static char *flag_string(char *buf, int buf_len, u64 flags, 5277 struct flag_table *table, int table_size) 5278 { 5279 char extra[32]; 5280 char *p = buf; 5281 int len = buf_len; 5282 int no_room = 0; 5283 int i; 5284 5285 /* make sure there is at least 2 so we can form "*" */ 5286 if (len < 2) 5287 return ""; 5288 5289 len--; /* leave room for a nul */ 5290 for (i = 0; i < table_size; i++) { 5291 if (flags & table[i].flag) { 5292 no_room = append_str(buf, &p, &len, table[i].str); 5293 if (no_room) 5294 break; 5295 flags &= ~table[i].flag; 5296 } 5297 } 5298 5299 /* any undocumented bits left? */ 5300 if (!no_room && flags) { 5301 snprintf(extra, sizeof(extra), "bits 0x%llx", flags); 5302 no_room = append_str(buf, &p, &len, extra); 5303 } 5304 5305 /* add * if ran out of room */ 5306 if (no_room) { 5307 /* may need to back up to add space for a '*' */ 5308 if (len == 0) 5309 --p; 5310 *p++ = '*'; 5311 } 5312 5313 /* add final nul - space already allocated above */ 5314 *p = 0; 5315 return buf; 5316 } 5317 5318 /* first 8 CCE error interrupt source names */ 5319 static const char * const cce_misc_names[] = { 5320 "CceErrInt", /* 0 */ 5321 "RxeErrInt", /* 1 */ 5322 "MiscErrInt", /* 2 */ 5323 "Reserved3", /* 3 */ 5324 "PioErrInt", /* 4 */ 5325 "SDmaErrInt", /* 5 */ 5326 "EgressErrInt", /* 6 */ 5327 "TxeErrInt" /* 7 */ 5328 }; 5329 5330 /* 5331 * Return the miscellaneous error interrupt name. 5332 */ 5333 static char *is_misc_err_name(char *buf, size_t bsize, unsigned int source) 5334 { 5335 if (source < ARRAY_SIZE(cce_misc_names)) 5336 strncpy(buf, cce_misc_names[source], bsize); 5337 else 5338 snprintf(buf, bsize, "Reserved%u", 5339 source + IS_GENERAL_ERR_START); 5340 5341 return buf; 5342 } 5343 5344 /* 5345 * Return the SDMA engine error interrupt name. 5346 */ 5347 static char *is_sdma_eng_err_name(char *buf, size_t bsize, unsigned int source) 5348 { 5349 snprintf(buf, bsize, "SDmaEngErrInt%u", source); 5350 return buf; 5351 } 5352 5353 /* 5354 * Return the send context error interrupt name. 5355 */ 5356 static char *is_sendctxt_err_name(char *buf, size_t bsize, unsigned int source) 5357 { 5358 snprintf(buf, bsize, "SendCtxtErrInt%u", source); 5359 return buf; 5360 } 5361 5362 static const char * const various_names[] = { 5363 "PbcInt", 5364 "GpioAssertInt", 5365 "Qsfp1Int", 5366 "Qsfp2Int", 5367 "TCritInt" 5368 }; 5369 5370 /* 5371 * Return the various interrupt name. 5372 */ 5373 static char *is_various_name(char *buf, size_t bsize, unsigned int source) 5374 { 5375 if (source < ARRAY_SIZE(various_names)) 5376 strncpy(buf, various_names[source], bsize); 5377 else 5378 snprintf(buf, bsize, "Reserved%u", source + IS_VARIOUS_START); 5379 return buf; 5380 } 5381 5382 /* 5383 * Return the DC interrupt name. 5384 */ 5385 static char *is_dc_name(char *buf, size_t bsize, unsigned int source) 5386 { 5387 static const char * const dc_int_names[] = { 5388 "common", 5389 "lcb", 5390 "8051", 5391 "lbm" /* local block merge */ 5392 }; 5393 5394 if (source < ARRAY_SIZE(dc_int_names)) 5395 snprintf(buf, bsize, "dc_%s_int", dc_int_names[source]); 5396 else 5397 snprintf(buf, bsize, "DCInt%u", source); 5398 return buf; 5399 } 5400 5401 static const char * const sdma_int_names[] = { 5402 "SDmaInt", 5403 "SdmaIdleInt", 5404 "SdmaProgressInt", 5405 }; 5406 5407 /* 5408 * Return the SDMA engine interrupt name. 5409 */ 5410 static char *is_sdma_eng_name(char *buf, size_t bsize, unsigned int source) 5411 { 5412 /* what interrupt */ 5413 unsigned int what = source / TXE_NUM_SDMA_ENGINES; 5414 /* which engine */ 5415 unsigned int which = source % TXE_NUM_SDMA_ENGINES; 5416 5417 if (likely(what < 3)) 5418 snprintf(buf, bsize, "%s%u", sdma_int_names[what], which); 5419 else 5420 snprintf(buf, bsize, "Invalid SDMA interrupt %u", source); 5421 return buf; 5422 } 5423 5424 /* 5425 * Return the receive available interrupt name. 5426 */ 5427 static char *is_rcv_avail_name(char *buf, size_t bsize, unsigned int source) 5428 { 5429 snprintf(buf, bsize, "RcvAvailInt%u", source); 5430 return buf; 5431 } 5432 5433 /* 5434 * Return the receive urgent interrupt name. 5435 */ 5436 static char *is_rcv_urgent_name(char *buf, size_t bsize, unsigned int source) 5437 { 5438 snprintf(buf, bsize, "RcvUrgentInt%u", source); 5439 return buf; 5440 } 5441 5442 /* 5443 * Return the send credit interrupt name. 5444 */ 5445 static char *is_send_credit_name(char *buf, size_t bsize, unsigned int source) 5446 { 5447 snprintf(buf, bsize, "SendCreditInt%u", source); 5448 return buf; 5449 } 5450 5451 /* 5452 * Return the reserved interrupt name. 5453 */ 5454 static char *is_reserved_name(char *buf, size_t bsize, unsigned int source) 5455 { 5456 snprintf(buf, bsize, "Reserved%u", source + IS_RESERVED_START); 5457 return buf; 5458 } 5459 5460 static char *cce_err_status_string(char *buf, int buf_len, u64 flags) 5461 { 5462 return flag_string(buf, buf_len, flags, 5463 cce_err_status_flags, 5464 ARRAY_SIZE(cce_err_status_flags)); 5465 } 5466 5467 static char *rxe_err_status_string(char *buf, int buf_len, u64 flags) 5468 { 5469 return flag_string(buf, buf_len, flags, 5470 rxe_err_status_flags, 5471 ARRAY_SIZE(rxe_err_status_flags)); 5472 } 5473 5474 static char *misc_err_status_string(char *buf, int buf_len, u64 flags) 5475 { 5476 return flag_string(buf, buf_len, flags, misc_err_status_flags, 5477 ARRAY_SIZE(misc_err_status_flags)); 5478 } 5479 5480 static char *pio_err_status_string(char *buf, int buf_len, u64 flags) 5481 { 5482 return flag_string(buf, buf_len, flags, 5483 pio_err_status_flags, 5484 ARRAY_SIZE(pio_err_status_flags)); 5485 } 5486 5487 static char *sdma_err_status_string(char *buf, int buf_len, u64 flags) 5488 { 5489 return flag_string(buf, buf_len, flags, 5490 sdma_err_status_flags, 5491 ARRAY_SIZE(sdma_err_status_flags)); 5492 } 5493 5494 static char *egress_err_status_string(char *buf, int buf_len, u64 flags) 5495 { 5496 return flag_string(buf, buf_len, flags, 5497 egress_err_status_flags, 5498 ARRAY_SIZE(egress_err_status_flags)); 5499 } 5500 5501 static char *egress_err_info_string(char *buf, int buf_len, u64 flags) 5502 { 5503 return flag_string(buf, buf_len, flags, 5504 egress_err_info_flags, 5505 ARRAY_SIZE(egress_err_info_flags)); 5506 } 5507 5508 static char *send_err_status_string(char *buf, int buf_len, u64 flags) 5509 { 5510 return flag_string(buf, buf_len, flags, 5511 send_err_status_flags, 5512 ARRAY_SIZE(send_err_status_flags)); 5513 } 5514 5515 static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5516 { 5517 char buf[96]; 5518 int i = 0; 5519 5520 /* 5521 * For most these errors, there is nothing that can be done except 5522 * report or record it. 5523 */ 5524 dd_dev_info(dd, "CCE Error: %s\n", 5525 cce_err_status_string(buf, sizeof(buf), reg)); 5526 5527 if ((reg & CCE_ERR_STATUS_CCE_CLI2_ASYNC_FIFO_PARITY_ERR_SMASK) && 5528 is_ax(dd) && (dd->icode != ICODE_FUNCTIONAL_SIMULATOR)) { 5529 /* this error requires a manual drop into SPC freeze mode */ 5530 /* then a fix up */ 5531 start_freeze_handling(dd->pport, FREEZE_SELF); 5532 } 5533 5534 for (i = 0; i < NUM_CCE_ERR_STATUS_COUNTERS; i++) { 5535 if (reg & (1ull << i)) { 5536 incr_cntr64(&dd->cce_err_status_cnt[i]); 5537 /* maintain a counter over all cce_err_status errors */ 5538 incr_cntr64(&dd->sw_cce_err_status_aggregate); 5539 } 5540 } 5541 } 5542 5543 /* 5544 * Check counters for receive errors that do not have an interrupt 5545 * associated with them. 5546 */ 5547 #define RCVERR_CHECK_TIME 10 5548 static void update_rcverr_timer(struct timer_list *t) 5549 { 5550 struct hfi1_devdata *dd = from_timer(dd, t, rcverr_timer); 5551 struct hfi1_pportdata *ppd = dd->pport; 5552 u32 cur_ovfl_cnt = read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL); 5553 5554 if (dd->rcv_ovfl_cnt < cur_ovfl_cnt && 5555 ppd->port_error_action & OPA_PI_MASK_EX_BUFFER_OVERRUN) { 5556 dd_dev_info(dd, "%s: PortErrorAction bounce\n", __func__); 5557 set_link_down_reason( 5558 ppd, OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN, 0, 5559 OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN); 5560 queue_work(ppd->link_wq, &ppd->link_bounce_work); 5561 } 5562 dd->rcv_ovfl_cnt = (u32)cur_ovfl_cnt; 5563 5564 mod_timer(&dd->rcverr_timer, jiffies + HZ * RCVERR_CHECK_TIME); 5565 } 5566 5567 static int init_rcverr(struct hfi1_devdata *dd) 5568 { 5569 timer_setup(&dd->rcverr_timer, update_rcverr_timer, 0); 5570 /* Assume the hardware counter has been reset */ 5571 dd->rcv_ovfl_cnt = 0; 5572 return mod_timer(&dd->rcverr_timer, jiffies + HZ * RCVERR_CHECK_TIME); 5573 } 5574 5575 static void free_rcverr(struct hfi1_devdata *dd) 5576 { 5577 if (dd->rcverr_timer.function) 5578 del_timer_sync(&dd->rcverr_timer); 5579 } 5580 5581 static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5582 { 5583 char buf[96]; 5584 int i = 0; 5585 5586 dd_dev_info(dd, "Receive Error: %s\n", 5587 rxe_err_status_string(buf, sizeof(buf), reg)); 5588 5589 if (reg & ALL_RXE_FREEZE_ERR) { 5590 int flags = 0; 5591 5592 /* 5593 * Freeze mode recovery is disabled for the errors 5594 * in RXE_FREEZE_ABORT_MASK 5595 */ 5596 if (is_ax(dd) && (reg & RXE_FREEZE_ABORT_MASK)) 5597 flags = FREEZE_ABORT; 5598 5599 start_freeze_handling(dd->pport, flags); 5600 } 5601 5602 for (i = 0; i < NUM_RCV_ERR_STATUS_COUNTERS; i++) { 5603 if (reg & (1ull << i)) 5604 incr_cntr64(&dd->rcv_err_status_cnt[i]); 5605 } 5606 } 5607 5608 static void handle_misc_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5609 { 5610 char buf[96]; 5611 int i = 0; 5612 5613 dd_dev_info(dd, "Misc Error: %s", 5614 misc_err_status_string(buf, sizeof(buf), reg)); 5615 for (i = 0; i < NUM_MISC_ERR_STATUS_COUNTERS; i++) { 5616 if (reg & (1ull << i)) 5617 incr_cntr64(&dd->misc_err_status_cnt[i]); 5618 } 5619 } 5620 5621 static void handle_pio_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5622 { 5623 char buf[96]; 5624 int i = 0; 5625 5626 dd_dev_info(dd, "PIO Error: %s\n", 5627 pio_err_status_string(buf, sizeof(buf), reg)); 5628 5629 if (reg & ALL_PIO_FREEZE_ERR) 5630 start_freeze_handling(dd->pport, 0); 5631 5632 for (i = 0; i < NUM_SEND_PIO_ERR_STATUS_COUNTERS; i++) { 5633 if (reg & (1ull << i)) 5634 incr_cntr64(&dd->send_pio_err_status_cnt[i]); 5635 } 5636 } 5637 5638 static void handle_sdma_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5639 { 5640 char buf[96]; 5641 int i = 0; 5642 5643 dd_dev_info(dd, "SDMA Error: %s\n", 5644 sdma_err_status_string(buf, sizeof(buf), reg)); 5645 5646 if (reg & ALL_SDMA_FREEZE_ERR) 5647 start_freeze_handling(dd->pport, 0); 5648 5649 for (i = 0; i < NUM_SEND_DMA_ERR_STATUS_COUNTERS; i++) { 5650 if (reg & (1ull << i)) 5651 incr_cntr64(&dd->send_dma_err_status_cnt[i]); 5652 } 5653 } 5654 5655 static inline void __count_port_discards(struct hfi1_pportdata *ppd) 5656 { 5657 incr_cntr64(&ppd->port_xmit_discards); 5658 } 5659 5660 static void count_port_inactive(struct hfi1_devdata *dd) 5661 { 5662 __count_port_discards(dd->pport); 5663 } 5664 5665 /* 5666 * We have had a "disallowed packet" error during egress. Determine the 5667 * integrity check which failed, and update relevant error counter, etc. 5668 * 5669 * Note that the SEND_EGRESS_ERR_INFO register has only a single 5670 * bit of state per integrity check, and so we can miss the reason for an 5671 * egress error if more than one packet fails the same integrity check 5672 * since we cleared the corresponding bit in SEND_EGRESS_ERR_INFO. 5673 */ 5674 static void handle_send_egress_err_info(struct hfi1_devdata *dd, 5675 int vl) 5676 { 5677 struct hfi1_pportdata *ppd = dd->pport; 5678 u64 src = read_csr(dd, SEND_EGRESS_ERR_SOURCE); /* read first */ 5679 u64 info = read_csr(dd, SEND_EGRESS_ERR_INFO); 5680 char buf[96]; 5681 5682 /* clear down all observed info as quickly as possible after read */ 5683 write_csr(dd, SEND_EGRESS_ERR_INFO, info); 5684 5685 dd_dev_info(dd, 5686 "Egress Error Info: 0x%llx, %s Egress Error Src 0x%llx\n", 5687 info, egress_err_info_string(buf, sizeof(buf), info), src); 5688 5689 /* Eventually add other counters for each bit */ 5690 if (info & PORT_DISCARD_EGRESS_ERRS) { 5691 int weight, i; 5692 5693 /* 5694 * Count all applicable bits as individual errors and 5695 * attribute them to the packet that triggered this handler. 5696 * This may not be completely accurate due to limitations 5697 * on the available hardware error information. There is 5698 * a single information register and any number of error 5699 * packets may have occurred and contributed to it before 5700 * this routine is called. This means that: 5701 * a) If multiple packets with the same error occur before 5702 * this routine is called, earlier packets are missed. 5703 * There is only a single bit for each error type. 5704 * b) Errors may not be attributed to the correct VL. 5705 * The driver is attributing all bits in the info register 5706 * to the packet that triggered this call, but bits 5707 * could be an accumulation of different packets with 5708 * different VLs. 5709 * c) A single error packet may have multiple counts attached 5710 * to it. There is no way for the driver to know if 5711 * multiple bits set in the info register are due to a 5712 * single packet or multiple packets. The driver assumes 5713 * multiple packets. 5714 */ 5715 weight = hweight64(info & PORT_DISCARD_EGRESS_ERRS); 5716 for (i = 0; i < weight; i++) { 5717 __count_port_discards(ppd); 5718 if (vl >= 0 && vl < TXE_NUM_DATA_VL) 5719 incr_cntr64(&ppd->port_xmit_discards_vl[vl]); 5720 else if (vl == 15) 5721 incr_cntr64(&ppd->port_xmit_discards_vl 5722 [C_VL_15]); 5723 } 5724 } 5725 } 5726 5727 /* 5728 * Input value is a bit position within the SEND_EGRESS_ERR_STATUS 5729 * register. Does it represent a 'port inactive' error? 5730 */ 5731 static inline int port_inactive_err(u64 posn) 5732 { 5733 return (posn >= SEES(TX_LINKDOWN) && 5734 posn <= SEES(TX_INCORRECT_LINK_STATE)); 5735 } 5736 5737 /* 5738 * Input value is a bit position within the SEND_EGRESS_ERR_STATUS 5739 * register. Does it represent a 'disallowed packet' error? 5740 */ 5741 static inline int disallowed_pkt_err(int posn) 5742 { 5743 return (posn >= SEES(TX_SDMA0_DISALLOWED_PACKET) && 5744 posn <= SEES(TX_SDMA15_DISALLOWED_PACKET)); 5745 } 5746 5747 /* 5748 * Input value is a bit position of one of the SDMA engine disallowed 5749 * packet errors. Return which engine. Use of this must be guarded by 5750 * disallowed_pkt_err(). 5751 */ 5752 static inline int disallowed_pkt_engine(int posn) 5753 { 5754 return posn - SEES(TX_SDMA0_DISALLOWED_PACKET); 5755 } 5756 5757 /* 5758 * Translate an SDMA engine to a VL. Return -1 if the tranlation cannot 5759 * be done. 5760 */ 5761 static int engine_to_vl(struct hfi1_devdata *dd, int engine) 5762 { 5763 struct sdma_vl_map *m; 5764 int vl; 5765 5766 /* range check */ 5767 if (engine < 0 || engine >= TXE_NUM_SDMA_ENGINES) 5768 return -1; 5769 5770 rcu_read_lock(); 5771 m = rcu_dereference(dd->sdma_map); 5772 vl = m->engine_to_vl[engine]; 5773 rcu_read_unlock(); 5774 5775 return vl; 5776 } 5777 5778 /* 5779 * Translate the send context (sofware index) into a VL. Return -1 if the 5780 * translation cannot be done. 5781 */ 5782 static int sc_to_vl(struct hfi1_devdata *dd, int sw_index) 5783 { 5784 struct send_context_info *sci; 5785 struct send_context *sc; 5786 int i; 5787 5788 sci = &dd->send_contexts[sw_index]; 5789 5790 /* there is no information for user (PSM) and ack contexts */ 5791 if ((sci->type != SC_KERNEL) && (sci->type != SC_VL15)) 5792 return -1; 5793 5794 sc = sci->sc; 5795 if (!sc) 5796 return -1; 5797 if (dd->vld[15].sc == sc) 5798 return 15; 5799 for (i = 0; i < num_vls; i++) 5800 if (dd->vld[i].sc == sc) 5801 return i; 5802 5803 return -1; 5804 } 5805 5806 static void handle_egress_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5807 { 5808 u64 reg_copy = reg, handled = 0; 5809 char buf[96]; 5810 int i = 0; 5811 5812 if (reg & ALL_TXE_EGRESS_FREEZE_ERR) 5813 start_freeze_handling(dd->pport, 0); 5814 else if (is_ax(dd) && 5815 (reg & SEND_EGRESS_ERR_STATUS_TX_CREDIT_RETURN_VL_ERR_SMASK) && 5816 (dd->icode != ICODE_FUNCTIONAL_SIMULATOR)) 5817 start_freeze_handling(dd->pport, 0); 5818 5819 while (reg_copy) { 5820 int posn = fls64(reg_copy); 5821 /* fls64() returns a 1-based offset, we want it zero based */ 5822 int shift = posn - 1; 5823 u64 mask = 1ULL << shift; 5824 5825 if (port_inactive_err(shift)) { 5826 count_port_inactive(dd); 5827 handled |= mask; 5828 } else if (disallowed_pkt_err(shift)) { 5829 int vl = engine_to_vl(dd, disallowed_pkt_engine(shift)); 5830 5831 handle_send_egress_err_info(dd, vl); 5832 handled |= mask; 5833 } 5834 reg_copy &= ~mask; 5835 } 5836 5837 reg &= ~handled; 5838 5839 if (reg) 5840 dd_dev_info(dd, "Egress Error: %s\n", 5841 egress_err_status_string(buf, sizeof(buf), reg)); 5842 5843 for (i = 0; i < NUM_SEND_EGRESS_ERR_STATUS_COUNTERS; i++) { 5844 if (reg & (1ull << i)) 5845 incr_cntr64(&dd->send_egress_err_status_cnt[i]); 5846 } 5847 } 5848 5849 static void handle_txe_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5850 { 5851 char buf[96]; 5852 int i = 0; 5853 5854 dd_dev_info(dd, "Send Error: %s\n", 5855 send_err_status_string(buf, sizeof(buf), reg)); 5856 5857 for (i = 0; i < NUM_SEND_ERR_STATUS_COUNTERS; i++) { 5858 if (reg & (1ull << i)) 5859 incr_cntr64(&dd->send_err_status_cnt[i]); 5860 } 5861 } 5862 5863 /* 5864 * The maximum number of times the error clear down will loop before 5865 * blocking a repeating error. This value is arbitrary. 5866 */ 5867 #define MAX_CLEAR_COUNT 20 5868 5869 /* 5870 * Clear and handle an error register. All error interrupts are funneled 5871 * through here to have a central location to correctly handle single- 5872 * or multi-shot errors. 5873 * 5874 * For non per-context registers, call this routine with a context value 5875 * of 0 so the per-context offset is zero. 5876 * 5877 * If the handler loops too many times, assume that something is wrong 5878 * and can't be fixed, so mask the error bits. 5879 */ 5880 static void interrupt_clear_down(struct hfi1_devdata *dd, 5881 u32 context, 5882 const struct err_reg_info *eri) 5883 { 5884 u64 reg; 5885 u32 count; 5886 5887 /* read in a loop until no more errors are seen */ 5888 count = 0; 5889 while (1) { 5890 reg = read_kctxt_csr(dd, context, eri->status); 5891 if (reg == 0) 5892 break; 5893 write_kctxt_csr(dd, context, eri->clear, reg); 5894 if (likely(eri->handler)) 5895 eri->handler(dd, context, reg); 5896 count++; 5897 if (count > MAX_CLEAR_COUNT) { 5898 u64 mask; 5899 5900 dd_dev_err(dd, "Repeating %s bits 0x%llx - masking\n", 5901 eri->desc, reg); 5902 /* 5903 * Read-modify-write so any other masked bits 5904 * remain masked. 5905 */ 5906 mask = read_kctxt_csr(dd, context, eri->mask); 5907 mask &= ~reg; 5908 write_kctxt_csr(dd, context, eri->mask, mask); 5909 break; 5910 } 5911 } 5912 } 5913 5914 /* 5915 * CCE block "misc" interrupt. Source is < 16. 5916 */ 5917 static void is_misc_err_int(struct hfi1_devdata *dd, unsigned int source) 5918 { 5919 const struct err_reg_info *eri = &misc_errs[source]; 5920 5921 if (eri->handler) { 5922 interrupt_clear_down(dd, 0, eri); 5923 } else { 5924 dd_dev_err(dd, "Unexpected misc interrupt (%u) - reserved\n", 5925 source); 5926 } 5927 } 5928 5929 static char *send_context_err_status_string(char *buf, int buf_len, u64 flags) 5930 { 5931 return flag_string(buf, buf_len, flags, 5932 sc_err_status_flags, 5933 ARRAY_SIZE(sc_err_status_flags)); 5934 } 5935 5936 /* 5937 * Send context error interrupt. Source (hw_context) is < 160. 5938 * 5939 * All send context errors cause the send context to halt. The normal 5940 * clear-down mechanism cannot be used because we cannot clear the 5941 * error bits until several other long-running items are done first. 5942 * This is OK because with the context halted, nothing else is going 5943 * to happen on it anyway. 5944 */ 5945 static void is_sendctxt_err_int(struct hfi1_devdata *dd, 5946 unsigned int hw_context) 5947 { 5948 struct send_context_info *sci; 5949 struct send_context *sc; 5950 char flags[96]; 5951 u64 status; 5952 u32 sw_index; 5953 int i = 0; 5954 unsigned long irq_flags; 5955 5956 sw_index = dd->hw_to_sw[hw_context]; 5957 if (sw_index >= dd->num_send_contexts) { 5958 dd_dev_err(dd, 5959 "out of range sw index %u for send context %u\n", 5960 sw_index, hw_context); 5961 return; 5962 } 5963 sci = &dd->send_contexts[sw_index]; 5964 spin_lock_irqsave(&dd->sc_lock, irq_flags); 5965 sc = sci->sc; 5966 if (!sc) { 5967 dd_dev_err(dd, "%s: context %u(%u): no sc?\n", __func__, 5968 sw_index, hw_context); 5969 spin_unlock_irqrestore(&dd->sc_lock, irq_flags); 5970 return; 5971 } 5972 5973 /* tell the software that a halt has begun */ 5974 sc_stop(sc, SCF_HALTED); 5975 5976 status = read_kctxt_csr(dd, hw_context, SEND_CTXT_ERR_STATUS); 5977 5978 dd_dev_info(dd, "Send Context %u(%u) Error: %s\n", sw_index, hw_context, 5979 send_context_err_status_string(flags, sizeof(flags), 5980 status)); 5981 5982 if (status & SEND_CTXT_ERR_STATUS_PIO_DISALLOWED_PACKET_ERR_SMASK) 5983 handle_send_egress_err_info(dd, sc_to_vl(dd, sw_index)); 5984 5985 /* 5986 * Automatically restart halted kernel contexts out of interrupt 5987 * context. User contexts must ask the driver to restart the context. 5988 */ 5989 if (sc->type != SC_USER) 5990 queue_work(dd->pport->hfi1_wq, &sc->halt_work); 5991 spin_unlock_irqrestore(&dd->sc_lock, irq_flags); 5992 5993 /* 5994 * Update the counters for the corresponding status bits. 5995 * Note that these particular counters are aggregated over all 5996 * 160 contexts. 5997 */ 5998 for (i = 0; i < NUM_SEND_CTXT_ERR_STATUS_COUNTERS; i++) { 5999 if (status & (1ull << i)) 6000 incr_cntr64(&dd->sw_ctxt_err_status_cnt[i]); 6001 } 6002 } 6003 6004 static void handle_sdma_eng_err(struct hfi1_devdata *dd, 6005 unsigned int source, u64 status) 6006 { 6007 struct sdma_engine *sde; 6008 int i = 0; 6009 6010 sde = &dd->per_sdma[source]; 6011 #ifdef CONFIG_SDMA_VERBOSITY 6012 dd_dev_err(sde->dd, "CONFIG SDMA(%u) %s:%d %s()\n", sde->this_idx, 6013 slashstrip(__FILE__), __LINE__, __func__); 6014 dd_dev_err(sde->dd, "CONFIG SDMA(%u) source: %u status 0x%llx\n", 6015 sde->this_idx, source, (unsigned long long)status); 6016 #endif 6017 sde->err_cnt++; 6018 sdma_engine_error(sde, status); 6019 6020 /* 6021 * Update the counters for the corresponding status bits. 6022 * Note that these particular counters are aggregated over 6023 * all 16 DMA engines. 6024 */ 6025 for (i = 0; i < NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS; i++) { 6026 if (status & (1ull << i)) 6027 incr_cntr64(&dd->sw_send_dma_eng_err_status_cnt[i]); 6028 } 6029 } 6030 6031 /* 6032 * CCE block SDMA error interrupt. Source is < 16. 6033 */ 6034 static void is_sdma_eng_err_int(struct hfi1_devdata *dd, unsigned int source) 6035 { 6036 #ifdef CONFIG_SDMA_VERBOSITY 6037 struct sdma_engine *sde = &dd->per_sdma[source]; 6038 6039 dd_dev_err(dd, "CONFIG SDMA(%u) %s:%d %s()\n", sde->this_idx, 6040 slashstrip(__FILE__), __LINE__, __func__); 6041 dd_dev_err(dd, "CONFIG SDMA(%u) source: %u\n", sde->this_idx, 6042 source); 6043 sdma_dumpstate(sde); 6044 #endif 6045 interrupt_clear_down(dd, source, &sdma_eng_err); 6046 } 6047 6048 /* 6049 * CCE block "various" interrupt. Source is < 8. 6050 */ 6051 static void is_various_int(struct hfi1_devdata *dd, unsigned int source) 6052 { 6053 const struct err_reg_info *eri = &various_err[source]; 6054 6055 /* 6056 * TCritInt cannot go through interrupt_clear_down() 6057 * because it is not a second tier interrupt. The handler 6058 * should be called directly. 6059 */ 6060 if (source == TCRIT_INT_SOURCE) 6061 handle_temp_err(dd); 6062 else if (eri->handler) 6063 interrupt_clear_down(dd, 0, eri); 6064 else 6065 dd_dev_info(dd, 6066 "%s: Unimplemented/reserved interrupt %d\n", 6067 __func__, source); 6068 } 6069 6070 static void handle_qsfp_int(struct hfi1_devdata *dd, u32 src_ctx, u64 reg) 6071 { 6072 /* src_ctx is always zero */ 6073 struct hfi1_pportdata *ppd = dd->pport; 6074 unsigned long flags; 6075 u64 qsfp_int_mgmt = (u64)(QSFP_HFI0_INT_N | QSFP_HFI0_MODPRST_N); 6076 6077 if (reg & QSFP_HFI0_MODPRST_N) { 6078 if (!qsfp_mod_present(ppd)) { 6079 dd_dev_info(dd, "%s: QSFP module removed\n", 6080 __func__); 6081 6082 ppd->driver_link_ready = 0; 6083 /* 6084 * Cable removed, reset all our information about the 6085 * cache and cable capabilities 6086 */ 6087 6088 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 6089 /* 6090 * We don't set cache_refresh_required here as we expect 6091 * an interrupt when a cable is inserted 6092 */ 6093 ppd->qsfp_info.cache_valid = 0; 6094 ppd->qsfp_info.reset_needed = 0; 6095 ppd->qsfp_info.limiting_active = 0; 6096 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, 6097 flags); 6098 /* Invert the ModPresent pin now to detect plug-in */ 6099 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_INVERT : 6100 ASIC_QSFP1_INVERT, qsfp_int_mgmt); 6101 6102 if ((ppd->offline_disabled_reason > 6103 HFI1_ODR_MASK( 6104 OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED)) || 6105 (ppd->offline_disabled_reason == 6106 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE))) 6107 ppd->offline_disabled_reason = 6108 HFI1_ODR_MASK( 6109 OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED); 6110 6111 if (ppd->host_link_state == HLS_DN_POLL) { 6112 /* 6113 * The link is still in POLL. This means 6114 * that the normal link down processing 6115 * will not happen. We have to do it here 6116 * before turning the DC off. 6117 */ 6118 queue_work(ppd->link_wq, &ppd->link_down_work); 6119 } 6120 } else { 6121 dd_dev_info(dd, "%s: QSFP module inserted\n", 6122 __func__); 6123 6124 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 6125 ppd->qsfp_info.cache_valid = 0; 6126 ppd->qsfp_info.cache_refresh_required = 1; 6127 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, 6128 flags); 6129 6130 /* 6131 * Stop inversion of ModPresent pin to detect 6132 * removal of the cable 6133 */ 6134 qsfp_int_mgmt &= ~(u64)QSFP_HFI0_MODPRST_N; 6135 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_INVERT : 6136 ASIC_QSFP1_INVERT, qsfp_int_mgmt); 6137 6138 ppd->offline_disabled_reason = 6139 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT); 6140 } 6141 } 6142 6143 if (reg & QSFP_HFI0_INT_N) { 6144 dd_dev_info(dd, "%s: Interrupt received from QSFP module\n", 6145 __func__); 6146 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 6147 ppd->qsfp_info.check_interrupt_flags = 1; 6148 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, flags); 6149 } 6150 6151 /* Schedule the QSFP work only if there is a cable attached. */ 6152 if (qsfp_mod_present(ppd)) 6153 queue_work(ppd->link_wq, &ppd->qsfp_info.qsfp_work); 6154 } 6155 6156 static int request_host_lcb_access(struct hfi1_devdata *dd) 6157 { 6158 int ret; 6159 6160 ret = do_8051_command(dd, HCMD_MISC, 6161 (u64)HCMD_MISC_REQUEST_LCB_ACCESS << 6162 LOAD_DATA_FIELD_ID_SHIFT, NULL); 6163 if (ret != HCMD_SUCCESS) { 6164 dd_dev_err(dd, "%s: command failed with error %d\n", 6165 __func__, ret); 6166 } 6167 return ret == HCMD_SUCCESS ? 0 : -EBUSY; 6168 } 6169 6170 static int request_8051_lcb_access(struct hfi1_devdata *dd) 6171 { 6172 int ret; 6173 6174 ret = do_8051_command(dd, HCMD_MISC, 6175 (u64)HCMD_MISC_GRANT_LCB_ACCESS << 6176 LOAD_DATA_FIELD_ID_SHIFT, NULL); 6177 if (ret != HCMD_SUCCESS) { 6178 dd_dev_err(dd, "%s: command failed with error %d\n", 6179 __func__, ret); 6180 } 6181 return ret == HCMD_SUCCESS ? 0 : -EBUSY; 6182 } 6183 6184 /* 6185 * Set the LCB selector - allow host access. The DCC selector always 6186 * points to the host. 6187 */ 6188 static inline void set_host_lcb_access(struct hfi1_devdata *dd) 6189 { 6190 write_csr(dd, DC_DC8051_CFG_CSR_ACCESS_SEL, 6191 DC_DC8051_CFG_CSR_ACCESS_SEL_DCC_SMASK | 6192 DC_DC8051_CFG_CSR_ACCESS_SEL_LCB_SMASK); 6193 } 6194 6195 /* 6196 * Clear the LCB selector - allow 8051 access. The DCC selector always 6197 * points to the host. 6198 */ 6199 static inline void set_8051_lcb_access(struct hfi1_devdata *dd) 6200 { 6201 write_csr(dd, DC_DC8051_CFG_CSR_ACCESS_SEL, 6202 DC_DC8051_CFG_CSR_ACCESS_SEL_DCC_SMASK); 6203 } 6204 6205 /* 6206 * Acquire LCB access from the 8051. If the host already has access, 6207 * just increment a counter. Otherwise, inform the 8051 that the 6208 * host is taking access. 6209 * 6210 * Returns: 6211 * 0 on success 6212 * -EBUSY if the 8051 has control and cannot be disturbed 6213 * -errno if unable to acquire access from the 8051 6214 */ 6215 int acquire_lcb_access(struct hfi1_devdata *dd, int sleep_ok) 6216 { 6217 struct hfi1_pportdata *ppd = dd->pport; 6218 int ret = 0; 6219 6220 /* 6221 * Use the host link state lock so the operation of this routine 6222 * { link state check, selector change, count increment } can occur 6223 * as a unit against a link state change. Otherwise there is a 6224 * race between the state change and the count increment. 6225 */ 6226 if (sleep_ok) { 6227 mutex_lock(&ppd->hls_lock); 6228 } else { 6229 while (!mutex_trylock(&ppd->hls_lock)) 6230 udelay(1); 6231 } 6232 6233 /* this access is valid only when the link is up */ 6234 if (ppd->host_link_state & HLS_DOWN) { 6235 dd_dev_info(dd, "%s: link state %s not up\n", 6236 __func__, link_state_name(ppd->host_link_state)); 6237 ret = -EBUSY; 6238 goto done; 6239 } 6240 6241 if (dd->lcb_access_count == 0) { 6242 ret = request_host_lcb_access(dd); 6243 if (ret) { 6244 dd_dev_err(dd, 6245 "%s: unable to acquire LCB access, err %d\n", 6246 __func__, ret); 6247 goto done; 6248 } 6249 set_host_lcb_access(dd); 6250 } 6251 dd->lcb_access_count++; 6252 done: 6253 mutex_unlock(&ppd->hls_lock); 6254 return ret; 6255 } 6256 6257 /* 6258 * Release LCB access by decrementing the use count. If the count is moving 6259 * from 1 to 0, inform 8051 that it has control back. 6260 * 6261 * Returns: 6262 * 0 on success 6263 * -errno if unable to release access to the 8051 6264 */ 6265 int release_lcb_access(struct hfi1_devdata *dd, int sleep_ok) 6266 { 6267 int ret = 0; 6268 6269 /* 6270 * Use the host link state lock because the acquire needed it. 6271 * Here, we only need to keep { selector change, count decrement } 6272 * as a unit. 6273 */ 6274 if (sleep_ok) { 6275 mutex_lock(&dd->pport->hls_lock); 6276 } else { 6277 while (!mutex_trylock(&dd->pport->hls_lock)) 6278 udelay(1); 6279 } 6280 6281 if (dd->lcb_access_count == 0) { 6282 dd_dev_err(dd, "%s: LCB access count is zero. Skipping.\n", 6283 __func__); 6284 goto done; 6285 } 6286 6287 if (dd->lcb_access_count == 1) { 6288 set_8051_lcb_access(dd); 6289 ret = request_8051_lcb_access(dd); 6290 if (ret) { 6291 dd_dev_err(dd, 6292 "%s: unable to release LCB access, err %d\n", 6293 __func__, ret); 6294 /* restore host access if the grant didn't work */ 6295 set_host_lcb_access(dd); 6296 goto done; 6297 } 6298 } 6299 dd->lcb_access_count--; 6300 done: 6301 mutex_unlock(&dd->pport->hls_lock); 6302 return ret; 6303 } 6304 6305 /* 6306 * Initialize LCB access variables and state. Called during driver load, 6307 * after most of the initialization is finished. 6308 * 6309 * The DC default is LCB access on for the host. The driver defaults to 6310 * leaving access to the 8051. Assign access now - this constrains the call 6311 * to this routine to be after all LCB set-up is done. In particular, after 6312 * hf1_init_dd() -> set_up_interrupts() -> clear_all_interrupts() 6313 */ 6314 static void init_lcb_access(struct hfi1_devdata *dd) 6315 { 6316 dd->lcb_access_count = 0; 6317 } 6318 6319 /* 6320 * Write a response back to a 8051 request. 6321 */ 6322 static void hreq_response(struct hfi1_devdata *dd, u8 return_code, u16 rsp_data) 6323 { 6324 write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, 6325 DC_DC8051_CFG_EXT_DEV_0_COMPLETED_SMASK | 6326 (u64)return_code << 6327 DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT | 6328 (u64)rsp_data << DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT); 6329 } 6330 6331 /* 6332 * Handle host requests from the 8051. 6333 */ 6334 static void handle_8051_request(struct hfi1_pportdata *ppd) 6335 { 6336 struct hfi1_devdata *dd = ppd->dd; 6337 u64 reg; 6338 u16 data = 0; 6339 u8 type; 6340 6341 reg = read_csr(dd, DC_DC8051_CFG_EXT_DEV_1); 6342 if ((reg & DC_DC8051_CFG_EXT_DEV_1_REQ_NEW_SMASK) == 0) 6343 return; /* no request */ 6344 6345 /* zero out COMPLETED so the response is seen */ 6346 write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, 0); 6347 6348 /* extract request details */ 6349 type = (reg >> DC_DC8051_CFG_EXT_DEV_1_REQ_TYPE_SHIFT) 6350 & DC_DC8051_CFG_EXT_DEV_1_REQ_TYPE_MASK; 6351 data = (reg >> DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_SHIFT) 6352 & DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_MASK; 6353 6354 switch (type) { 6355 case HREQ_LOAD_CONFIG: 6356 case HREQ_SAVE_CONFIG: 6357 case HREQ_READ_CONFIG: 6358 case HREQ_SET_TX_EQ_ABS: 6359 case HREQ_SET_TX_EQ_REL: 6360 case HREQ_ENABLE: 6361 dd_dev_info(dd, "8051 request: request 0x%x not supported\n", 6362 type); 6363 hreq_response(dd, HREQ_NOT_SUPPORTED, 0); 6364 break; 6365 case HREQ_LCB_RESET: 6366 /* Put the LCB, RX FPE and TX FPE into reset */ 6367 write_csr(dd, DCC_CFG_RESET, LCB_RX_FPE_TX_FPE_INTO_RESET); 6368 /* Make sure the write completed */ 6369 (void)read_csr(dd, DCC_CFG_RESET); 6370 /* Hold the reset long enough to take effect */ 6371 udelay(1); 6372 /* Take the LCB, RX FPE and TX FPE out of reset */ 6373 write_csr(dd, DCC_CFG_RESET, LCB_RX_FPE_TX_FPE_OUT_OF_RESET); 6374 hreq_response(dd, HREQ_SUCCESS, 0); 6375 6376 break; 6377 case HREQ_CONFIG_DONE: 6378 hreq_response(dd, HREQ_SUCCESS, 0); 6379 break; 6380 6381 case HREQ_INTERFACE_TEST: 6382 hreq_response(dd, HREQ_SUCCESS, data); 6383 break; 6384 default: 6385 dd_dev_err(dd, "8051 request: unknown request 0x%x\n", type); 6386 hreq_response(dd, HREQ_NOT_SUPPORTED, 0); 6387 break; 6388 } 6389 } 6390 6391 /* 6392 * Set up allocation unit vaulue. 6393 */ 6394 void set_up_vau(struct hfi1_devdata *dd, u8 vau) 6395 { 6396 u64 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 6397 6398 /* do not modify other values in the register */ 6399 reg &= ~SEND_CM_GLOBAL_CREDIT_AU_SMASK; 6400 reg |= (u64)vau << SEND_CM_GLOBAL_CREDIT_AU_SHIFT; 6401 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 6402 } 6403 6404 /* 6405 * Set up initial VL15 credits of the remote. Assumes the rest of 6406 * the CM credit registers are zero from a previous global or credit reset. 6407 * Shared limit for VL15 will always be 0. 6408 */ 6409 void set_up_vl15(struct hfi1_devdata *dd, u16 vl15buf) 6410 { 6411 u64 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 6412 6413 /* set initial values for total and shared credit limit */ 6414 reg &= ~(SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SMASK | 6415 SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SMASK); 6416 6417 /* 6418 * Set total limit to be equal to VL15 credits. 6419 * Leave shared limit at 0. 6420 */ 6421 reg |= (u64)vl15buf << SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SHIFT; 6422 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 6423 6424 write_csr(dd, SEND_CM_CREDIT_VL15, (u64)vl15buf 6425 << SEND_CM_CREDIT_VL15_DEDICATED_LIMIT_VL_SHIFT); 6426 } 6427 6428 /* 6429 * Zero all credit details from the previous connection and 6430 * reset the CM manager's internal counters. 6431 */ 6432 void reset_link_credits(struct hfi1_devdata *dd) 6433 { 6434 int i; 6435 6436 /* remove all previous VL credit limits */ 6437 for (i = 0; i < TXE_NUM_DATA_VL; i++) 6438 write_csr(dd, SEND_CM_CREDIT_VL + (8 * i), 0); 6439 write_csr(dd, SEND_CM_CREDIT_VL15, 0); 6440 write_csr(dd, SEND_CM_GLOBAL_CREDIT, 0); 6441 /* reset the CM block */ 6442 pio_send_control(dd, PSC_CM_RESET); 6443 /* reset cached value */ 6444 dd->vl15buf_cached = 0; 6445 } 6446 6447 /* convert a vCU to a CU */ 6448 static u32 vcu_to_cu(u8 vcu) 6449 { 6450 return 1 << vcu; 6451 } 6452 6453 /* convert a CU to a vCU */ 6454 static u8 cu_to_vcu(u32 cu) 6455 { 6456 return ilog2(cu); 6457 } 6458 6459 /* convert a vAU to an AU */ 6460 static u32 vau_to_au(u8 vau) 6461 { 6462 return 8 * (1 << vau); 6463 } 6464 6465 static void set_linkup_defaults(struct hfi1_pportdata *ppd) 6466 { 6467 ppd->sm_trap_qp = 0x0; 6468 ppd->sa_qp = 0x1; 6469 } 6470 6471 /* 6472 * Graceful LCB shutdown. This leaves the LCB FIFOs in reset. 6473 */ 6474 static void lcb_shutdown(struct hfi1_devdata *dd, int abort) 6475 { 6476 u64 reg; 6477 6478 /* clear lcb run: LCB_CFG_RUN.EN = 0 */ 6479 write_csr(dd, DC_LCB_CFG_RUN, 0); 6480 /* set tx fifo reset: LCB_CFG_TX_FIFOS_RESET.VAL = 1 */ 6481 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 6482 1ull << DC_LCB_CFG_TX_FIFOS_RESET_VAL_SHIFT); 6483 /* set dcc reset csr: DCC_CFG_RESET.{reset_lcb,reset_rx_fpe} = 1 */ 6484 dd->lcb_err_en = read_csr(dd, DC_LCB_ERR_EN); 6485 reg = read_csr(dd, DCC_CFG_RESET); 6486 write_csr(dd, DCC_CFG_RESET, reg | 6487 DCC_CFG_RESET_RESET_LCB | DCC_CFG_RESET_RESET_RX_FPE); 6488 (void)read_csr(dd, DCC_CFG_RESET); /* make sure the write completed */ 6489 if (!abort) { 6490 udelay(1); /* must hold for the longer of 16cclks or 20ns */ 6491 write_csr(dd, DCC_CFG_RESET, reg); 6492 write_csr(dd, DC_LCB_ERR_EN, dd->lcb_err_en); 6493 } 6494 } 6495 6496 /* 6497 * This routine should be called after the link has been transitioned to 6498 * OFFLINE (OFFLINE state has the side effect of putting the SerDes into 6499 * reset). 6500 * 6501 * The expectation is that the caller of this routine would have taken 6502 * care of properly transitioning the link into the correct state. 6503 * NOTE: the caller needs to acquire the dd->dc8051_lock lock 6504 * before calling this function. 6505 */ 6506 static void _dc_shutdown(struct hfi1_devdata *dd) 6507 { 6508 lockdep_assert_held(&dd->dc8051_lock); 6509 6510 if (dd->dc_shutdown) 6511 return; 6512 6513 dd->dc_shutdown = 1; 6514 /* Shutdown the LCB */ 6515 lcb_shutdown(dd, 1); 6516 /* 6517 * Going to OFFLINE would have causes the 8051 to put the 6518 * SerDes into reset already. Just need to shut down the 8051, 6519 * itself. 6520 */ 6521 write_csr(dd, DC_DC8051_CFG_RST, 0x1); 6522 } 6523 6524 static void dc_shutdown(struct hfi1_devdata *dd) 6525 { 6526 mutex_lock(&dd->dc8051_lock); 6527 _dc_shutdown(dd); 6528 mutex_unlock(&dd->dc8051_lock); 6529 } 6530 6531 /* 6532 * Calling this after the DC has been brought out of reset should not 6533 * do any damage. 6534 * NOTE: the caller needs to acquire the dd->dc8051_lock lock 6535 * before calling this function. 6536 */ 6537 static void _dc_start(struct hfi1_devdata *dd) 6538 { 6539 lockdep_assert_held(&dd->dc8051_lock); 6540 6541 if (!dd->dc_shutdown) 6542 return; 6543 6544 /* Take the 8051 out of reset */ 6545 write_csr(dd, DC_DC8051_CFG_RST, 0ull); 6546 /* Wait until 8051 is ready */ 6547 if (wait_fm_ready(dd, TIMEOUT_8051_START)) 6548 dd_dev_err(dd, "%s: timeout starting 8051 firmware\n", 6549 __func__); 6550 6551 /* Take away reset for LCB and RX FPE (set in lcb_shutdown). */ 6552 write_csr(dd, DCC_CFG_RESET, LCB_RX_FPE_TX_FPE_OUT_OF_RESET); 6553 /* lcb_shutdown() with abort=1 does not restore these */ 6554 write_csr(dd, DC_LCB_ERR_EN, dd->lcb_err_en); 6555 dd->dc_shutdown = 0; 6556 } 6557 6558 static void dc_start(struct hfi1_devdata *dd) 6559 { 6560 mutex_lock(&dd->dc8051_lock); 6561 _dc_start(dd); 6562 mutex_unlock(&dd->dc8051_lock); 6563 } 6564 6565 /* 6566 * These LCB adjustments are for the Aurora SerDes core in the FPGA. 6567 */ 6568 static void adjust_lcb_for_fpga_serdes(struct hfi1_devdata *dd) 6569 { 6570 u64 rx_radr, tx_radr; 6571 u32 version; 6572 6573 if (dd->icode != ICODE_FPGA_EMULATION) 6574 return; 6575 6576 /* 6577 * These LCB defaults on emulator _s are good, nothing to do here: 6578 * LCB_CFG_TX_FIFOS_RADR 6579 * LCB_CFG_RX_FIFOS_RADR 6580 * LCB_CFG_LN_DCLK 6581 * LCB_CFG_IGNORE_LOST_RCLK 6582 */ 6583 if (is_emulator_s(dd)) 6584 return; 6585 /* else this is _p */ 6586 6587 version = emulator_rev(dd); 6588 if (!is_ax(dd)) 6589 version = 0x2d; /* all B0 use 0x2d or higher settings */ 6590 6591 if (version <= 0x12) { 6592 /* release 0x12 and below */ 6593 6594 /* 6595 * LCB_CFG_RX_FIFOS_RADR.RST_VAL = 0x9 6596 * LCB_CFG_RX_FIFOS_RADR.OK_TO_JUMP_VAL = 0x9 6597 * LCB_CFG_RX_FIFOS_RADR.DO_NOT_JUMP_VAL = 0xa 6598 */ 6599 rx_radr = 6600 0xaull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6601 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6602 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6603 /* 6604 * LCB_CFG_TX_FIFOS_RADR.ON_REINIT = 0 (default) 6605 * LCB_CFG_TX_FIFOS_RADR.RST_VAL = 6 6606 */ 6607 tx_radr = 6ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6608 } else if (version <= 0x18) { 6609 /* release 0x13 up to 0x18 */ 6610 /* LCB_CFG_RX_FIFOS_RADR = 0x988 */ 6611 rx_radr = 6612 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6613 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6614 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6615 tx_radr = 7ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6616 } else if (version == 0x19) { 6617 /* release 0x19 */ 6618 /* LCB_CFG_RX_FIFOS_RADR = 0xa99 */ 6619 rx_radr = 6620 0xAull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6621 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6622 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6623 tx_radr = 3ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6624 } else if (version == 0x1a) { 6625 /* release 0x1a */ 6626 /* LCB_CFG_RX_FIFOS_RADR = 0x988 */ 6627 rx_radr = 6628 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6629 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6630 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6631 tx_radr = 7ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6632 write_csr(dd, DC_LCB_CFG_LN_DCLK, 1ull); 6633 } else { 6634 /* release 0x1b and higher */ 6635 /* LCB_CFG_RX_FIFOS_RADR = 0x877 */ 6636 rx_radr = 6637 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6638 | 0x7ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6639 | 0x7ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6640 tx_radr = 3ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6641 } 6642 6643 write_csr(dd, DC_LCB_CFG_RX_FIFOS_RADR, rx_radr); 6644 /* LCB_CFG_IGNORE_LOST_RCLK.EN = 1 */ 6645 write_csr(dd, DC_LCB_CFG_IGNORE_LOST_RCLK, 6646 DC_LCB_CFG_IGNORE_LOST_RCLK_EN_SMASK); 6647 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RADR, tx_radr); 6648 } 6649 6650 /* 6651 * Handle a SMA idle message 6652 * 6653 * This is a work-queue function outside of the interrupt. 6654 */ 6655 void handle_sma_message(struct work_struct *work) 6656 { 6657 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 6658 sma_message_work); 6659 struct hfi1_devdata *dd = ppd->dd; 6660 u64 msg; 6661 int ret; 6662 6663 /* 6664 * msg is bytes 1-4 of the 40-bit idle message - the command code 6665 * is stripped off 6666 */ 6667 ret = read_idle_sma(dd, &msg); 6668 if (ret) 6669 return; 6670 dd_dev_info(dd, "%s: SMA message 0x%llx\n", __func__, msg); 6671 /* 6672 * React to the SMA message. Byte[1] (0 for us) is the command. 6673 */ 6674 switch (msg & 0xff) { 6675 case SMA_IDLE_ARM: 6676 /* 6677 * See OPAv1 table 9-14 - HFI and External Switch Ports Key 6678 * State Transitions 6679 * 6680 * Only expected in INIT or ARMED, discard otherwise. 6681 */ 6682 if (ppd->host_link_state & (HLS_UP_INIT | HLS_UP_ARMED)) 6683 ppd->neighbor_normal = 1; 6684 break; 6685 case SMA_IDLE_ACTIVE: 6686 /* 6687 * See OPAv1 table 9-14 - HFI and External Switch Ports Key 6688 * State Transitions 6689 * 6690 * Can activate the node. Discard otherwise. 6691 */ 6692 if (ppd->host_link_state == HLS_UP_ARMED && 6693 ppd->is_active_optimize_enabled) { 6694 ppd->neighbor_normal = 1; 6695 ret = set_link_state(ppd, HLS_UP_ACTIVE); 6696 if (ret) 6697 dd_dev_err( 6698 dd, 6699 "%s: received Active SMA idle message, couldn't set link to Active\n", 6700 __func__); 6701 } 6702 break; 6703 default: 6704 dd_dev_err(dd, 6705 "%s: received unexpected SMA idle message 0x%llx\n", 6706 __func__, msg); 6707 break; 6708 } 6709 } 6710 6711 static void adjust_rcvctrl(struct hfi1_devdata *dd, u64 add, u64 clear) 6712 { 6713 u64 rcvctrl; 6714 unsigned long flags; 6715 6716 spin_lock_irqsave(&dd->rcvctrl_lock, flags); 6717 rcvctrl = read_csr(dd, RCV_CTRL); 6718 rcvctrl |= add; 6719 rcvctrl &= ~clear; 6720 write_csr(dd, RCV_CTRL, rcvctrl); 6721 spin_unlock_irqrestore(&dd->rcvctrl_lock, flags); 6722 } 6723 6724 static inline void add_rcvctrl(struct hfi1_devdata *dd, u64 add) 6725 { 6726 adjust_rcvctrl(dd, add, 0); 6727 } 6728 6729 static inline void clear_rcvctrl(struct hfi1_devdata *dd, u64 clear) 6730 { 6731 adjust_rcvctrl(dd, 0, clear); 6732 } 6733 6734 /* 6735 * Called from all interrupt handlers to start handling an SPC freeze. 6736 */ 6737 void start_freeze_handling(struct hfi1_pportdata *ppd, int flags) 6738 { 6739 struct hfi1_devdata *dd = ppd->dd; 6740 struct send_context *sc; 6741 int i; 6742 int sc_flags; 6743 6744 if (flags & FREEZE_SELF) 6745 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK); 6746 6747 /* enter frozen mode */ 6748 dd->flags |= HFI1_FROZEN; 6749 6750 /* notify all SDMA engines that they are going into a freeze */ 6751 sdma_freeze_notify(dd, !!(flags & FREEZE_LINK_DOWN)); 6752 6753 sc_flags = SCF_FROZEN | SCF_HALTED | (flags & FREEZE_LINK_DOWN ? 6754 SCF_LINK_DOWN : 0); 6755 /* do halt pre-handling on all enabled send contexts */ 6756 for (i = 0; i < dd->num_send_contexts; i++) { 6757 sc = dd->send_contexts[i].sc; 6758 if (sc && (sc->flags & SCF_ENABLED)) 6759 sc_stop(sc, sc_flags); 6760 } 6761 6762 /* Send context are frozen. Notify user space */ 6763 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_FROZEN_BIT); 6764 6765 if (flags & FREEZE_ABORT) { 6766 dd_dev_err(dd, 6767 "Aborted freeze recovery. Please REBOOT system\n"); 6768 return; 6769 } 6770 /* queue non-interrupt handler */ 6771 queue_work(ppd->hfi1_wq, &ppd->freeze_work); 6772 } 6773 6774 /* 6775 * Wait until all 4 sub-blocks indicate that they have frozen or unfrozen, 6776 * depending on the "freeze" parameter. 6777 * 6778 * No need to return an error if it times out, our only option 6779 * is to proceed anyway. 6780 */ 6781 static void wait_for_freeze_status(struct hfi1_devdata *dd, int freeze) 6782 { 6783 unsigned long timeout; 6784 u64 reg; 6785 6786 timeout = jiffies + msecs_to_jiffies(FREEZE_STATUS_TIMEOUT); 6787 while (1) { 6788 reg = read_csr(dd, CCE_STATUS); 6789 if (freeze) { 6790 /* waiting until all indicators are set */ 6791 if ((reg & ALL_FROZE) == ALL_FROZE) 6792 return; /* all done */ 6793 } else { 6794 /* waiting until all indicators are clear */ 6795 if ((reg & ALL_FROZE) == 0) 6796 return; /* all done */ 6797 } 6798 6799 if (time_after(jiffies, timeout)) { 6800 dd_dev_err(dd, 6801 "Time out waiting for SPC %sfreeze, bits 0x%llx, expecting 0x%llx, continuing", 6802 freeze ? "" : "un", reg & ALL_FROZE, 6803 freeze ? ALL_FROZE : 0ull); 6804 return; 6805 } 6806 usleep_range(80, 120); 6807 } 6808 } 6809 6810 /* 6811 * Do all freeze handling for the RXE block. 6812 */ 6813 static void rxe_freeze(struct hfi1_devdata *dd) 6814 { 6815 int i; 6816 struct hfi1_ctxtdata *rcd; 6817 6818 /* disable port */ 6819 clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 6820 6821 /* disable all receive contexts */ 6822 for (i = 0; i < dd->num_rcv_contexts; i++) { 6823 rcd = hfi1_rcd_get_by_index(dd, i); 6824 hfi1_rcvctrl(dd, HFI1_RCVCTRL_CTXT_DIS, rcd); 6825 hfi1_rcd_put(rcd); 6826 } 6827 } 6828 6829 /* 6830 * Unfreeze handling for the RXE block - kernel contexts only. 6831 * This will also enable the port. User contexts will do unfreeze 6832 * handling on a per-context basis as they call into the driver. 6833 * 6834 */ 6835 static void rxe_kernel_unfreeze(struct hfi1_devdata *dd) 6836 { 6837 u32 rcvmask; 6838 u16 i; 6839 struct hfi1_ctxtdata *rcd; 6840 6841 /* enable all kernel contexts */ 6842 for (i = 0; i < dd->num_rcv_contexts; i++) { 6843 rcd = hfi1_rcd_get_by_index(dd, i); 6844 6845 /* Ensure all non-user contexts(including vnic) are enabled */ 6846 if (!rcd || 6847 (i >= dd->first_dyn_alloc_ctxt && !rcd->is_vnic)) { 6848 hfi1_rcd_put(rcd); 6849 continue; 6850 } 6851 rcvmask = HFI1_RCVCTRL_CTXT_ENB; 6852 /* HFI1_RCVCTRL_TAILUPD_[ENB|DIS] needs to be set explicitly */ 6853 rcvmask |= hfi1_rcvhdrtail_kvaddr(rcd) ? 6854 HFI1_RCVCTRL_TAILUPD_ENB : HFI1_RCVCTRL_TAILUPD_DIS; 6855 hfi1_rcvctrl(dd, rcvmask, rcd); 6856 hfi1_rcd_put(rcd); 6857 } 6858 6859 /* enable port */ 6860 add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 6861 } 6862 6863 /* 6864 * Non-interrupt SPC freeze handling. 6865 * 6866 * This is a work-queue function outside of the triggering interrupt. 6867 */ 6868 void handle_freeze(struct work_struct *work) 6869 { 6870 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 6871 freeze_work); 6872 struct hfi1_devdata *dd = ppd->dd; 6873 6874 /* wait for freeze indicators on all affected blocks */ 6875 wait_for_freeze_status(dd, 1); 6876 6877 /* SPC is now frozen */ 6878 6879 /* do send PIO freeze steps */ 6880 pio_freeze(dd); 6881 6882 /* do send DMA freeze steps */ 6883 sdma_freeze(dd); 6884 6885 /* do send egress freeze steps - nothing to do */ 6886 6887 /* do receive freeze steps */ 6888 rxe_freeze(dd); 6889 6890 /* 6891 * Unfreeze the hardware - clear the freeze, wait for each 6892 * block's frozen bit to clear, then clear the frozen flag. 6893 */ 6894 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_UNFREEZE_SMASK); 6895 wait_for_freeze_status(dd, 0); 6896 6897 if (is_ax(dd)) { 6898 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK); 6899 wait_for_freeze_status(dd, 1); 6900 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_UNFREEZE_SMASK); 6901 wait_for_freeze_status(dd, 0); 6902 } 6903 6904 /* do send PIO unfreeze steps for kernel contexts */ 6905 pio_kernel_unfreeze(dd); 6906 6907 /* do send DMA unfreeze steps */ 6908 sdma_unfreeze(dd); 6909 6910 /* do send egress unfreeze steps - nothing to do */ 6911 6912 /* do receive unfreeze steps for kernel contexts */ 6913 rxe_kernel_unfreeze(dd); 6914 6915 /* 6916 * The unfreeze procedure touches global device registers when 6917 * it disables and re-enables RXE. Mark the device unfrozen 6918 * after all that is done so other parts of the driver waiting 6919 * for the device to unfreeze don't do things out of order. 6920 * 6921 * The above implies that the meaning of HFI1_FROZEN flag is 6922 * "Device has gone into freeze mode and freeze mode handling 6923 * is still in progress." 6924 * 6925 * The flag will be removed when freeze mode processing has 6926 * completed. 6927 */ 6928 dd->flags &= ~HFI1_FROZEN; 6929 wake_up(&dd->event_queue); 6930 6931 /* no longer frozen */ 6932 } 6933 6934 /** 6935 * update_xmit_counters - update PortXmitWait/PortVlXmitWait 6936 * counters. 6937 * @ppd: info of physical Hfi port 6938 * @link_width: new link width after link up or downgrade 6939 * 6940 * Update the PortXmitWait and PortVlXmitWait counters after 6941 * a link up or downgrade event to reflect a link width change. 6942 */ 6943 static void update_xmit_counters(struct hfi1_pportdata *ppd, u16 link_width) 6944 { 6945 int i; 6946 u16 tx_width; 6947 u16 link_speed; 6948 6949 tx_width = tx_link_width(link_width); 6950 link_speed = get_link_speed(ppd->link_speed_active); 6951 6952 /* 6953 * There are C_VL_COUNT number of PortVLXmitWait counters. 6954 * Adding 1 to C_VL_COUNT to include the PortXmitWait counter. 6955 */ 6956 for (i = 0; i < C_VL_COUNT + 1; i++) 6957 get_xmit_wait_counters(ppd, tx_width, link_speed, i); 6958 } 6959 6960 /* 6961 * Handle a link up interrupt from the 8051. 6962 * 6963 * This is a work-queue function outside of the interrupt. 6964 */ 6965 void handle_link_up(struct work_struct *work) 6966 { 6967 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 6968 link_up_work); 6969 struct hfi1_devdata *dd = ppd->dd; 6970 6971 set_link_state(ppd, HLS_UP_INIT); 6972 6973 /* cache the read of DC_LCB_STS_ROUND_TRIP_LTP_CNT */ 6974 read_ltp_rtt(dd); 6975 /* 6976 * OPA specifies that certain counters are cleared on a transition 6977 * to link up, so do that. 6978 */ 6979 clear_linkup_counters(dd); 6980 /* 6981 * And (re)set link up default values. 6982 */ 6983 set_linkup_defaults(ppd); 6984 6985 /* 6986 * Set VL15 credits. Use cached value from verify cap interrupt. 6987 * In case of quick linkup or simulator, vl15 value will be set by 6988 * handle_linkup_change. VerifyCap interrupt handler will not be 6989 * called in those scenarios. 6990 */ 6991 if (!(quick_linkup || dd->icode == ICODE_FUNCTIONAL_SIMULATOR)) 6992 set_up_vl15(dd, dd->vl15buf_cached); 6993 6994 /* enforce link speed enabled */ 6995 if ((ppd->link_speed_active & ppd->link_speed_enabled) == 0) { 6996 /* oops - current speed is not enabled, bounce */ 6997 dd_dev_err(dd, 6998 "Link speed active 0x%x is outside enabled 0x%x, downing link\n", 6999 ppd->link_speed_active, ppd->link_speed_enabled); 7000 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_SPEED_POLICY, 0, 7001 OPA_LINKDOWN_REASON_SPEED_POLICY); 7002 set_link_state(ppd, HLS_DN_OFFLINE); 7003 start_link(ppd); 7004 } 7005 } 7006 7007 /* 7008 * Several pieces of LNI information were cached for SMA in ppd. 7009 * Reset these on link down 7010 */ 7011 static void reset_neighbor_info(struct hfi1_pportdata *ppd) 7012 { 7013 ppd->neighbor_guid = 0; 7014 ppd->neighbor_port_number = 0; 7015 ppd->neighbor_type = 0; 7016 ppd->neighbor_fm_security = 0; 7017 } 7018 7019 static const char * const link_down_reason_strs[] = { 7020 [OPA_LINKDOWN_REASON_NONE] = "None", 7021 [OPA_LINKDOWN_REASON_RCV_ERROR_0] = "Receive error 0", 7022 [OPA_LINKDOWN_REASON_BAD_PKT_LEN] = "Bad packet length", 7023 [OPA_LINKDOWN_REASON_PKT_TOO_LONG] = "Packet too long", 7024 [OPA_LINKDOWN_REASON_PKT_TOO_SHORT] = "Packet too short", 7025 [OPA_LINKDOWN_REASON_BAD_SLID] = "Bad SLID", 7026 [OPA_LINKDOWN_REASON_BAD_DLID] = "Bad DLID", 7027 [OPA_LINKDOWN_REASON_BAD_L2] = "Bad L2", 7028 [OPA_LINKDOWN_REASON_BAD_SC] = "Bad SC", 7029 [OPA_LINKDOWN_REASON_RCV_ERROR_8] = "Receive error 8", 7030 [OPA_LINKDOWN_REASON_BAD_MID_TAIL] = "Bad mid tail", 7031 [OPA_LINKDOWN_REASON_RCV_ERROR_10] = "Receive error 10", 7032 [OPA_LINKDOWN_REASON_PREEMPT_ERROR] = "Preempt error", 7033 [OPA_LINKDOWN_REASON_PREEMPT_VL15] = "Preempt vl15", 7034 [OPA_LINKDOWN_REASON_BAD_VL_MARKER] = "Bad VL marker", 7035 [OPA_LINKDOWN_REASON_RCV_ERROR_14] = "Receive error 14", 7036 [OPA_LINKDOWN_REASON_RCV_ERROR_15] = "Receive error 15", 7037 [OPA_LINKDOWN_REASON_BAD_HEAD_DIST] = "Bad head distance", 7038 [OPA_LINKDOWN_REASON_BAD_TAIL_DIST] = "Bad tail distance", 7039 [OPA_LINKDOWN_REASON_BAD_CTRL_DIST] = "Bad control distance", 7040 [OPA_LINKDOWN_REASON_BAD_CREDIT_ACK] = "Bad credit ack", 7041 [OPA_LINKDOWN_REASON_UNSUPPORTED_VL_MARKER] = "Unsupported VL marker", 7042 [OPA_LINKDOWN_REASON_BAD_PREEMPT] = "Bad preempt", 7043 [OPA_LINKDOWN_REASON_BAD_CONTROL_FLIT] = "Bad control flit", 7044 [OPA_LINKDOWN_REASON_EXCEED_MULTICAST_LIMIT] = "Exceed multicast limit", 7045 [OPA_LINKDOWN_REASON_RCV_ERROR_24] = "Receive error 24", 7046 [OPA_LINKDOWN_REASON_RCV_ERROR_25] = "Receive error 25", 7047 [OPA_LINKDOWN_REASON_RCV_ERROR_26] = "Receive error 26", 7048 [OPA_LINKDOWN_REASON_RCV_ERROR_27] = "Receive error 27", 7049 [OPA_LINKDOWN_REASON_RCV_ERROR_28] = "Receive error 28", 7050 [OPA_LINKDOWN_REASON_RCV_ERROR_29] = "Receive error 29", 7051 [OPA_LINKDOWN_REASON_RCV_ERROR_30] = "Receive error 30", 7052 [OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN] = 7053 "Excessive buffer overrun", 7054 [OPA_LINKDOWN_REASON_UNKNOWN] = "Unknown", 7055 [OPA_LINKDOWN_REASON_REBOOT] = "Reboot", 7056 [OPA_LINKDOWN_REASON_NEIGHBOR_UNKNOWN] = "Neighbor unknown", 7057 [OPA_LINKDOWN_REASON_FM_BOUNCE] = "FM bounce", 7058 [OPA_LINKDOWN_REASON_SPEED_POLICY] = "Speed policy", 7059 [OPA_LINKDOWN_REASON_WIDTH_POLICY] = "Width policy", 7060 [OPA_LINKDOWN_REASON_DISCONNECTED] = "Disconnected", 7061 [OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED] = 7062 "Local media not installed", 7063 [OPA_LINKDOWN_REASON_NOT_INSTALLED] = "Not installed", 7064 [OPA_LINKDOWN_REASON_CHASSIS_CONFIG] = "Chassis config", 7065 [OPA_LINKDOWN_REASON_END_TO_END_NOT_INSTALLED] = 7066 "End to end not installed", 7067 [OPA_LINKDOWN_REASON_POWER_POLICY] = "Power policy", 7068 [OPA_LINKDOWN_REASON_LINKSPEED_POLICY] = "Link speed policy", 7069 [OPA_LINKDOWN_REASON_LINKWIDTH_POLICY] = "Link width policy", 7070 [OPA_LINKDOWN_REASON_SWITCH_MGMT] = "Switch management", 7071 [OPA_LINKDOWN_REASON_SMA_DISABLED] = "SMA disabled", 7072 [OPA_LINKDOWN_REASON_TRANSIENT] = "Transient" 7073 }; 7074 7075 /* return the neighbor link down reason string */ 7076 static const char *link_down_reason_str(u8 reason) 7077 { 7078 const char *str = NULL; 7079 7080 if (reason < ARRAY_SIZE(link_down_reason_strs)) 7081 str = link_down_reason_strs[reason]; 7082 if (!str) 7083 str = "(invalid)"; 7084 7085 return str; 7086 } 7087 7088 /* 7089 * Handle a link down interrupt from the 8051. 7090 * 7091 * This is a work-queue function outside of the interrupt. 7092 */ 7093 void handle_link_down(struct work_struct *work) 7094 { 7095 u8 lcl_reason, neigh_reason = 0; 7096 u8 link_down_reason; 7097 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7098 link_down_work); 7099 int was_up; 7100 static const char ldr_str[] = "Link down reason: "; 7101 7102 if ((ppd->host_link_state & 7103 (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) && 7104 ppd->port_type == PORT_TYPE_FIXED) 7105 ppd->offline_disabled_reason = 7106 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NOT_INSTALLED); 7107 7108 /* Go offline first, then deal with reading/writing through 8051 */ 7109 was_up = !!(ppd->host_link_state & HLS_UP); 7110 set_link_state(ppd, HLS_DN_OFFLINE); 7111 xchg(&ppd->is_link_down_queued, 0); 7112 7113 if (was_up) { 7114 lcl_reason = 0; 7115 /* link down reason is only valid if the link was up */ 7116 read_link_down_reason(ppd->dd, &link_down_reason); 7117 switch (link_down_reason) { 7118 case LDR_LINK_TRANSFER_ACTIVE_LOW: 7119 /* the link went down, no idle message reason */ 7120 dd_dev_info(ppd->dd, "%sUnexpected link down\n", 7121 ldr_str); 7122 break; 7123 case LDR_RECEIVED_LINKDOWN_IDLE_MSG: 7124 /* 7125 * The neighbor reason is only valid if an idle message 7126 * was received for it. 7127 */ 7128 read_planned_down_reason_code(ppd->dd, &neigh_reason); 7129 dd_dev_info(ppd->dd, 7130 "%sNeighbor link down message %d, %s\n", 7131 ldr_str, neigh_reason, 7132 link_down_reason_str(neigh_reason)); 7133 break; 7134 case LDR_RECEIVED_HOST_OFFLINE_REQ: 7135 dd_dev_info(ppd->dd, 7136 "%sHost requested link to go offline\n", 7137 ldr_str); 7138 break; 7139 default: 7140 dd_dev_info(ppd->dd, "%sUnknown reason 0x%x\n", 7141 ldr_str, link_down_reason); 7142 break; 7143 } 7144 7145 /* 7146 * If no reason, assume peer-initiated but missed 7147 * LinkGoingDown idle flits. 7148 */ 7149 if (neigh_reason == 0) 7150 lcl_reason = OPA_LINKDOWN_REASON_NEIGHBOR_UNKNOWN; 7151 } else { 7152 /* went down while polling or going up */ 7153 lcl_reason = OPA_LINKDOWN_REASON_TRANSIENT; 7154 } 7155 7156 set_link_down_reason(ppd, lcl_reason, neigh_reason, 0); 7157 7158 /* inform the SMA when the link transitions from up to down */ 7159 if (was_up && ppd->local_link_down_reason.sma == 0 && 7160 ppd->neigh_link_down_reason.sma == 0) { 7161 ppd->local_link_down_reason.sma = 7162 ppd->local_link_down_reason.latest; 7163 ppd->neigh_link_down_reason.sma = 7164 ppd->neigh_link_down_reason.latest; 7165 } 7166 7167 reset_neighbor_info(ppd); 7168 7169 /* disable the port */ 7170 clear_rcvctrl(ppd->dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 7171 7172 /* 7173 * If there is no cable attached, turn the DC off. Otherwise, 7174 * start the link bring up. 7175 */ 7176 if (ppd->port_type == PORT_TYPE_QSFP && !qsfp_mod_present(ppd)) 7177 dc_shutdown(ppd->dd); 7178 else 7179 start_link(ppd); 7180 } 7181 7182 void handle_link_bounce(struct work_struct *work) 7183 { 7184 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7185 link_bounce_work); 7186 7187 /* 7188 * Only do something if the link is currently up. 7189 */ 7190 if (ppd->host_link_state & HLS_UP) { 7191 set_link_state(ppd, HLS_DN_OFFLINE); 7192 start_link(ppd); 7193 } else { 7194 dd_dev_info(ppd->dd, "%s: link not up (%s), nothing to do\n", 7195 __func__, link_state_name(ppd->host_link_state)); 7196 } 7197 } 7198 7199 /* 7200 * Mask conversion: Capability exchange to Port LTP. The capability 7201 * exchange has an implicit 16b CRC that is mandatory. 7202 */ 7203 static int cap_to_port_ltp(int cap) 7204 { 7205 int port_ltp = PORT_LTP_CRC_MODE_16; /* this mode is mandatory */ 7206 7207 if (cap & CAP_CRC_14B) 7208 port_ltp |= PORT_LTP_CRC_MODE_14; 7209 if (cap & CAP_CRC_48B) 7210 port_ltp |= PORT_LTP_CRC_MODE_48; 7211 if (cap & CAP_CRC_12B_16B_PER_LANE) 7212 port_ltp |= PORT_LTP_CRC_MODE_PER_LANE; 7213 7214 return port_ltp; 7215 } 7216 7217 /* 7218 * Convert an OPA Port LTP mask to capability mask 7219 */ 7220 int port_ltp_to_cap(int port_ltp) 7221 { 7222 int cap_mask = 0; 7223 7224 if (port_ltp & PORT_LTP_CRC_MODE_14) 7225 cap_mask |= CAP_CRC_14B; 7226 if (port_ltp & PORT_LTP_CRC_MODE_48) 7227 cap_mask |= CAP_CRC_48B; 7228 if (port_ltp & PORT_LTP_CRC_MODE_PER_LANE) 7229 cap_mask |= CAP_CRC_12B_16B_PER_LANE; 7230 7231 return cap_mask; 7232 } 7233 7234 /* 7235 * Convert a single DC LCB CRC mode to an OPA Port LTP mask. 7236 */ 7237 static int lcb_to_port_ltp(int lcb_crc) 7238 { 7239 int port_ltp = 0; 7240 7241 if (lcb_crc == LCB_CRC_12B_16B_PER_LANE) 7242 port_ltp = PORT_LTP_CRC_MODE_PER_LANE; 7243 else if (lcb_crc == LCB_CRC_48B) 7244 port_ltp = PORT_LTP_CRC_MODE_48; 7245 else if (lcb_crc == LCB_CRC_14B) 7246 port_ltp = PORT_LTP_CRC_MODE_14; 7247 else 7248 port_ltp = PORT_LTP_CRC_MODE_16; 7249 7250 return port_ltp; 7251 } 7252 7253 static void clear_full_mgmt_pkey(struct hfi1_pportdata *ppd) 7254 { 7255 if (ppd->pkeys[2] != 0) { 7256 ppd->pkeys[2] = 0; 7257 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0); 7258 hfi1_event_pkey_change(ppd->dd, ppd->port); 7259 } 7260 } 7261 7262 /* 7263 * Convert the given link width to the OPA link width bitmask. 7264 */ 7265 static u16 link_width_to_bits(struct hfi1_devdata *dd, u16 width) 7266 { 7267 switch (width) { 7268 case 0: 7269 /* 7270 * Simulator and quick linkup do not set the width. 7271 * Just set it to 4x without complaint. 7272 */ 7273 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR || quick_linkup) 7274 return OPA_LINK_WIDTH_4X; 7275 return 0; /* no lanes up */ 7276 case 1: return OPA_LINK_WIDTH_1X; 7277 case 2: return OPA_LINK_WIDTH_2X; 7278 case 3: return OPA_LINK_WIDTH_3X; 7279 case 4: return OPA_LINK_WIDTH_4X; 7280 default: 7281 dd_dev_info(dd, "%s: invalid width %d, using 4\n", 7282 __func__, width); 7283 return OPA_LINK_WIDTH_4X; 7284 } 7285 } 7286 7287 /* 7288 * Do a population count on the bottom nibble. 7289 */ 7290 static const u8 bit_counts[16] = { 7291 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4 7292 }; 7293 7294 static inline u8 nibble_to_count(u8 nibble) 7295 { 7296 return bit_counts[nibble & 0xf]; 7297 } 7298 7299 /* 7300 * Read the active lane information from the 8051 registers and return 7301 * their widths. 7302 * 7303 * Active lane information is found in these 8051 registers: 7304 * enable_lane_tx 7305 * enable_lane_rx 7306 */ 7307 static void get_link_widths(struct hfi1_devdata *dd, u16 *tx_width, 7308 u16 *rx_width) 7309 { 7310 u16 tx, rx; 7311 u8 enable_lane_rx; 7312 u8 enable_lane_tx; 7313 u8 tx_polarity_inversion; 7314 u8 rx_polarity_inversion; 7315 u8 max_rate; 7316 7317 /* read the active lanes */ 7318 read_tx_settings(dd, &enable_lane_tx, &tx_polarity_inversion, 7319 &rx_polarity_inversion, &max_rate); 7320 read_local_lni(dd, &enable_lane_rx); 7321 7322 /* convert to counts */ 7323 tx = nibble_to_count(enable_lane_tx); 7324 rx = nibble_to_count(enable_lane_rx); 7325 7326 /* 7327 * Set link_speed_active here, overriding what was set in 7328 * handle_verify_cap(). The ASIC 8051 firmware does not correctly 7329 * set the max_rate field in handle_verify_cap until v0.19. 7330 */ 7331 if ((dd->icode == ICODE_RTL_SILICON) && 7332 (dd->dc8051_ver < dc8051_ver(0, 19, 0))) { 7333 /* max_rate: 0 = 12.5G, 1 = 25G */ 7334 switch (max_rate) { 7335 case 0: 7336 dd->pport[0].link_speed_active = OPA_LINK_SPEED_12_5G; 7337 break; 7338 case 1: 7339 dd->pport[0].link_speed_active = OPA_LINK_SPEED_25G; 7340 break; 7341 default: 7342 dd_dev_err(dd, 7343 "%s: unexpected max rate %d, using 25Gb\n", 7344 __func__, (int)max_rate); 7345 dd->pport[0].link_speed_active = OPA_LINK_SPEED_25G; 7346 break; 7347 } 7348 } 7349 7350 dd_dev_info(dd, 7351 "Fabric active lanes (width): tx 0x%x (%d), rx 0x%x (%d)\n", 7352 enable_lane_tx, tx, enable_lane_rx, rx); 7353 *tx_width = link_width_to_bits(dd, tx); 7354 *rx_width = link_width_to_bits(dd, rx); 7355 } 7356 7357 /* 7358 * Read verify_cap_local_fm_link_width[1] to obtain the link widths. 7359 * Valid after the end of VerifyCap and during LinkUp. Does not change 7360 * after link up. I.e. look elsewhere for downgrade information. 7361 * 7362 * Bits are: 7363 * + bits [7:4] contain the number of active transmitters 7364 * + bits [3:0] contain the number of active receivers 7365 * These are numbers 1 through 4 and can be different values if the 7366 * link is asymmetric. 7367 * 7368 * verify_cap_local_fm_link_width[0] retains its original value. 7369 */ 7370 static void get_linkup_widths(struct hfi1_devdata *dd, u16 *tx_width, 7371 u16 *rx_width) 7372 { 7373 u16 widths, tx, rx; 7374 u8 misc_bits, local_flags; 7375 u16 active_tx, active_rx; 7376 7377 read_vc_local_link_mode(dd, &misc_bits, &local_flags, &widths); 7378 tx = widths >> 12; 7379 rx = (widths >> 8) & 0xf; 7380 7381 *tx_width = link_width_to_bits(dd, tx); 7382 *rx_width = link_width_to_bits(dd, rx); 7383 7384 /* print the active widths */ 7385 get_link_widths(dd, &active_tx, &active_rx); 7386 } 7387 7388 /* 7389 * Set ppd->link_width_active and ppd->link_width_downgrade_active using 7390 * hardware information when the link first comes up. 7391 * 7392 * The link width is not available until after VerifyCap.AllFramesReceived 7393 * (the trigger for handle_verify_cap), so this is outside that routine 7394 * and should be called when the 8051 signals linkup. 7395 */ 7396 void get_linkup_link_widths(struct hfi1_pportdata *ppd) 7397 { 7398 u16 tx_width, rx_width; 7399 7400 /* get end-of-LNI link widths */ 7401 get_linkup_widths(ppd->dd, &tx_width, &rx_width); 7402 7403 /* use tx_width as the link is supposed to be symmetric on link up */ 7404 ppd->link_width_active = tx_width; 7405 /* link width downgrade active (LWD.A) starts out matching LW.A */ 7406 ppd->link_width_downgrade_tx_active = ppd->link_width_active; 7407 ppd->link_width_downgrade_rx_active = ppd->link_width_active; 7408 /* per OPA spec, on link up LWD.E resets to LWD.S */ 7409 ppd->link_width_downgrade_enabled = ppd->link_width_downgrade_supported; 7410 /* cache the active egress rate (units {10^6 bits/sec]) */ 7411 ppd->current_egress_rate = active_egress_rate(ppd); 7412 } 7413 7414 /* 7415 * Handle a verify capabilities interrupt from the 8051. 7416 * 7417 * This is a work-queue function outside of the interrupt. 7418 */ 7419 void handle_verify_cap(struct work_struct *work) 7420 { 7421 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7422 link_vc_work); 7423 struct hfi1_devdata *dd = ppd->dd; 7424 u64 reg; 7425 u8 power_management; 7426 u8 continuous; 7427 u8 vcu; 7428 u8 vau; 7429 u8 z; 7430 u16 vl15buf; 7431 u16 link_widths; 7432 u16 crc_mask; 7433 u16 crc_val; 7434 u16 device_id; 7435 u16 active_tx, active_rx; 7436 u8 partner_supported_crc; 7437 u8 remote_tx_rate; 7438 u8 device_rev; 7439 7440 set_link_state(ppd, HLS_VERIFY_CAP); 7441 7442 lcb_shutdown(dd, 0); 7443 adjust_lcb_for_fpga_serdes(dd); 7444 7445 read_vc_remote_phy(dd, &power_management, &continuous); 7446 read_vc_remote_fabric(dd, &vau, &z, &vcu, &vl15buf, 7447 &partner_supported_crc); 7448 read_vc_remote_link_width(dd, &remote_tx_rate, &link_widths); 7449 read_remote_device_id(dd, &device_id, &device_rev); 7450 7451 /* print the active widths */ 7452 get_link_widths(dd, &active_tx, &active_rx); 7453 dd_dev_info(dd, 7454 "Peer PHY: power management 0x%x, continuous updates 0x%x\n", 7455 (int)power_management, (int)continuous); 7456 dd_dev_info(dd, 7457 "Peer Fabric: vAU %d, Z %d, vCU %d, vl15 credits 0x%x, CRC sizes 0x%x\n", 7458 (int)vau, (int)z, (int)vcu, (int)vl15buf, 7459 (int)partner_supported_crc); 7460 dd_dev_info(dd, "Peer Link Width: tx rate 0x%x, widths 0x%x\n", 7461 (u32)remote_tx_rate, (u32)link_widths); 7462 dd_dev_info(dd, "Peer Device ID: 0x%04x, Revision 0x%02x\n", 7463 (u32)device_id, (u32)device_rev); 7464 /* 7465 * The peer vAU value just read is the peer receiver value. HFI does 7466 * not support a transmit vAU of 0 (AU == 8). We advertised that 7467 * with Z=1 in the fabric capabilities sent to the peer. The peer 7468 * will see our Z=1, and, if it advertised a vAU of 0, will move its 7469 * receive to vAU of 1 (AU == 16). Do the same here. We do not care 7470 * about the peer Z value - our sent vAU is 3 (hardwired) and is not 7471 * subject to the Z value exception. 7472 */ 7473 if (vau == 0) 7474 vau = 1; 7475 set_up_vau(dd, vau); 7476 7477 /* 7478 * Set VL15 credits to 0 in global credit register. Cache remote VL15 7479 * credits value and wait for link-up interrupt ot set it. 7480 */ 7481 set_up_vl15(dd, 0); 7482 dd->vl15buf_cached = vl15buf; 7483 7484 /* set up the LCB CRC mode */ 7485 crc_mask = ppd->port_crc_mode_enabled & partner_supported_crc; 7486 7487 /* order is important: use the lowest bit in common */ 7488 if (crc_mask & CAP_CRC_14B) 7489 crc_val = LCB_CRC_14B; 7490 else if (crc_mask & CAP_CRC_48B) 7491 crc_val = LCB_CRC_48B; 7492 else if (crc_mask & CAP_CRC_12B_16B_PER_LANE) 7493 crc_val = LCB_CRC_12B_16B_PER_LANE; 7494 else 7495 crc_val = LCB_CRC_16B; 7496 7497 dd_dev_info(dd, "Final LCB CRC mode: %d\n", (int)crc_val); 7498 write_csr(dd, DC_LCB_CFG_CRC_MODE, 7499 (u64)crc_val << DC_LCB_CFG_CRC_MODE_TX_VAL_SHIFT); 7500 7501 /* set (14b only) or clear sideband credit */ 7502 reg = read_csr(dd, SEND_CM_CTRL); 7503 if (crc_val == LCB_CRC_14B && crc_14b_sideband) { 7504 write_csr(dd, SEND_CM_CTRL, 7505 reg | SEND_CM_CTRL_FORCE_CREDIT_MODE_SMASK); 7506 } else { 7507 write_csr(dd, SEND_CM_CTRL, 7508 reg & ~SEND_CM_CTRL_FORCE_CREDIT_MODE_SMASK); 7509 } 7510 7511 ppd->link_speed_active = 0; /* invalid value */ 7512 if (dd->dc8051_ver < dc8051_ver(0, 20, 0)) { 7513 /* remote_tx_rate: 0 = 12.5G, 1 = 25G */ 7514 switch (remote_tx_rate) { 7515 case 0: 7516 ppd->link_speed_active = OPA_LINK_SPEED_12_5G; 7517 break; 7518 case 1: 7519 ppd->link_speed_active = OPA_LINK_SPEED_25G; 7520 break; 7521 } 7522 } else { 7523 /* actual rate is highest bit of the ANDed rates */ 7524 u8 rate = remote_tx_rate & ppd->local_tx_rate; 7525 7526 if (rate & 2) 7527 ppd->link_speed_active = OPA_LINK_SPEED_25G; 7528 else if (rate & 1) 7529 ppd->link_speed_active = OPA_LINK_SPEED_12_5G; 7530 } 7531 if (ppd->link_speed_active == 0) { 7532 dd_dev_err(dd, "%s: unexpected remote tx rate %d, using 25Gb\n", 7533 __func__, (int)remote_tx_rate); 7534 ppd->link_speed_active = OPA_LINK_SPEED_25G; 7535 } 7536 7537 /* 7538 * Cache the values of the supported, enabled, and active 7539 * LTP CRC modes to return in 'portinfo' queries. But the bit 7540 * flags that are returned in the portinfo query differ from 7541 * what's in the link_crc_mask, crc_sizes, and crc_val 7542 * variables. Convert these here. 7543 */ 7544 ppd->port_ltp_crc_mode = cap_to_port_ltp(link_crc_mask) << 8; 7545 /* supported crc modes */ 7546 ppd->port_ltp_crc_mode |= 7547 cap_to_port_ltp(ppd->port_crc_mode_enabled) << 4; 7548 /* enabled crc modes */ 7549 ppd->port_ltp_crc_mode |= lcb_to_port_ltp(crc_val); 7550 /* active crc mode */ 7551 7552 /* set up the remote credit return table */ 7553 assign_remote_cm_au_table(dd, vcu); 7554 7555 /* 7556 * The LCB is reset on entry to handle_verify_cap(), so this must 7557 * be applied on every link up. 7558 * 7559 * Adjust LCB error kill enable to kill the link if 7560 * these RBUF errors are seen: 7561 * REPLAY_BUF_MBE_SMASK 7562 * FLIT_INPUT_BUF_MBE_SMASK 7563 */ 7564 if (is_ax(dd)) { /* fixed in B0 */ 7565 reg = read_csr(dd, DC_LCB_CFG_LINK_KILL_EN); 7566 reg |= DC_LCB_CFG_LINK_KILL_EN_REPLAY_BUF_MBE_SMASK 7567 | DC_LCB_CFG_LINK_KILL_EN_FLIT_INPUT_BUF_MBE_SMASK; 7568 write_csr(dd, DC_LCB_CFG_LINK_KILL_EN, reg); 7569 } 7570 7571 /* pull LCB fifos out of reset - all fifo clocks must be stable */ 7572 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0); 7573 7574 /* give 8051 access to the LCB CSRs */ 7575 write_csr(dd, DC_LCB_ERR_EN, 0); /* mask LCB errors */ 7576 set_8051_lcb_access(dd); 7577 7578 /* tell the 8051 to go to LinkUp */ 7579 set_link_state(ppd, HLS_GOING_UP); 7580 } 7581 7582 /** 7583 * apply_link_downgrade_policy - Apply the link width downgrade enabled 7584 * policy against the current active link widths. 7585 * @ppd: info of physical Hfi port 7586 * @refresh_widths: True indicates link downgrade event 7587 * @return: True indicates a successful link downgrade. False indicates 7588 * link downgrade event failed and the link will bounce back to 7589 * default link width. 7590 * 7591 * Called when the enabled policy changes or the active link widths 7592 * change. 7593 * Refresh_widths indicates that a link downgrade occurred. The 7594 * link_downgraded variable is set by refresh_widths and 7595 * determines the success/failure of the policy application. 7596 */ 7597 bool apply_link_downgrade_policy(struct hfi1_pportdata *ppd, 7598 bool refresh_widths) 7599 { 7600 int do_bounce = 0; 7601 int tries; 7602 u16 lwde; 7603 u16 tx, rx; 7604 bool link_downgraded = refresh_widths; 7605 7606 /* use the hls lock to avoid a race with actual link up */ 7607 tries = 0; 7608 retry: 7609 mutex_lock(&ppd->hls_lock); 7610 /* only apply if the link is up */ 7611 if (ppd->host_link_state & HLS_DOWN) { 7612 /* still going up..wait and retry */ 7613 if (ppd->host_link_state & HLS_GOING_UP) { 7614 if (++tries < 1000) { 7615 mutex_unlock(&ppd->hls_lock); 7616 usleep_range(100, 120); /* arbitrary */ 7617 goto retry; 7618 } 7619 dd_dev_err(ppd->dd, 7620 "%s: giving up waiting for link state change\n", 7621 __func__); 7622 } 7623 goto done; 7624 } 7625 7626 lwde = ppd->link_width_downgrade_enabled; 7627 7628 if (refresh_widths) { 7629 get_link_widths(ppd->dd, &tx, &rx); 7630 ppd->link_width_downgrade_tx_active = tx; 7631 ppd->link_width_downgrade_rx_active = rx; 7632 } 7633 7634 if (ppd->link_width_downgrade_tx_active == 0 || 7635 ppd->link_width_downgrade_rx_active == 0) { 7636 /* the 8051 reported a dead link as a downgrade */ 7637 dd_dev_err(ppd->dd, "Link downgrade is really a link down, ignoring\n"); 7638 link_downgraded = false; 7639 } else if (lwde == 0) { 7640 /* downgrade is disabled */ 7641 7642 /* bounce if not at starting active width */ 7643 if ((ppd->link_width_active != 7644 ppd->link_width_downgrade_tx_active) || 7645 (ppd->link_width_active != 7646 ppd->link_width_downgrade_rx_active)) { 7647 dd_dev_err(ppd->dd, 7648 "Link downgrade is disabled and link has downgraded, downing link\n"); 7649 dd_dev_err(ppd->dd, 7650 " original 0x%x, tx active 0x%x, rx active 0x%x\n", 7651 ppd->link_width_active, 7652 ppd->link_width_downgrade_tx_active, 7653 ppd->link_width_downgrade_rx_active); 7654 do_bounce = 1; 7655 link_downgraded = false; 7656 } 7657 } else if ((lwde & ppd->link_width_downgrade_tx_active) == 0 || 7658 (lwde & ppd->link_width_downgrade_rx_active) == 0) { 7659 /* Tx or Rx is outside the enabled policy */ 7660 dd_dev_err(ppd->dd, 7661 "Link is outside of downgrade allowed, downing link\n"); 7662 dd_dev_err(ppd->dd, 7663 " enabled 0x%x, tx active 0x%x, rx active 0x%x\n", 7664 lwde, ppd->link_width_downgrade_tx_active, 7665 ppd->link_width_downgrade_rx_active); 7666 do_bounce = 1; 7667 link_downgraded = false; 7668 } 7669 7670 done: 7671 mutex_unlock(&ppd->hls_lock); 7672 7673 if (do_bounce) { 7674 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_WIDTH_POLICY, 0, 7675 OPA_LINKDOWN_REASON_WIDTH_POLICY); 7676 set_link_state(ppd, HLS_DN_OFFLINE); 7677 start_link(ppd); 7678 } 7679 7680 return link_downgraded; 7681 } 7682 7683 /* 7684 * Handle a link downgrade interrupt from the 8051. 7685 * 7686 * This is a work-queue function outside of the interrupt. 7687 */ 7688 void handle_link_downgrade(struct work_struct *work) 7689 { 7690 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7691 link_downgrade_work); 7692 7693 dd_dev_info(ppd->dd, "8051: Link width downgrade\n"); 7694 if (apply_link_downgrade_policy(ppd, true)) 7695 update_xmit_counters(ppd, ppd->link_width_downgrade_tx_active); 7696 } 7697 7698 static char *dcc_err_string(char *buf, int buf_len, u64 flags) 7699 { 7700 return flag_string(buf, buf_len, flags, dcc_err_flags, 7701 ARRAY_SIZE(dcc_err_flags)); 7702 } 7703 7704 static char *lcb_err_string(char *buf, int buf_len, u64 flags) 7705 { 7706 return flag_string(buf, buf_len, flags, lcb_err_flags, 7707 ARRAY_SIZE(lcb_err_flags)); 7708 } 7709 7710 static char *dc8051_err_string(char *buf, int buf_len, u64 flags) 7711 { 7712 return flag_string(buf, buf_len, flags, dc8051_err_flags, 7713 ARRAY_SIZE(dc8051_err_flags)); 7714 } 7715 7716 static char *dc8051_info_err_string(char *buf, int buf_len, u64 flags) 7717 { 7718 return flag_string(buf, buf_len, flags, dc8051_info_err_flags, 7719 ARRAY_SIZE(dc8051_info_err_flags)); 7720 } 7721 7722 static char *dc8051_info_host_msg_string(char *buf, int buf_len, u64 flags) 7723 { 7724 return flag_string(buf, buf_len, flags, dc8051_info_host_msg_flags, 7725 ARRAY_SIZE(dc8051_info_host_msg_flags)); 7726 } 7727 7728 static void handle_8051_interrupt(struct hfi1_devdata *dd, u32 unused, u64 reg) 7729 { 7730 struct hfi1_pportdata *ppd = dd->pport; 7731 u64 info, err, host_msg; 7732 int queue_link_down = 0; 7733 char buf[96]; 7734 7735 /* look at the flags */ 7736 if (reg & DC_DC8051_ERR_FLG_SET_BY_8051_SMASK) { 7737 /* 8051 information set by firmware */ 7738 /* read DC8051_DBG_ERR_INFO_SET_BY_8051 for details */ 7739 info = read_csr(dd, DC_DC8051_DBG_ERR_INFO_SET_BY_8051); 7740 err = (info >> DC_DC8051_DBG_ERR_INFO_SET_BY_8051_ERROR_SHIFT) 7741 & DC_DC8051_DBG_ERR_INFO_SET_BY_8051_ERROR_MASK; 7742 host_msg = (info >> 7743 DC_DC8051_DBG_ERR_INFO_SET_BY_8051_HOST_MSG_SHIFT) 7744 & DC_DC8051_DBG_ERR_INFO_SET_BY_8051_HOST_MSG_MASK; 7745 7746 /* 7747 * Handle error flags. 7748 */ 7749 if (err & FAILED_LNI) { 7750 /* 7751 * LNI error indications are cleared by the 8051 7752 * only when starting polling. Only pay attention 7753 * to them when in the states that occur during 7754 * LNI. 7755 */ 7756 if (ppd->host_link_state 7757 & (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) { 7758 queue_link_down = 1; 7759 dd_dev_info(dd, "Link error: %s\n", 7760 dc8051_info_err_string(buf, 7761 sizeof(buf), 7762 err & 7763 FAILED_LNI)); 7764 } 7765 err &= ~(u64)FAILED_LNI; 7766 } 7767 /* unknown frames can happen durning LNI, just count */ 7768 if (err & UNKNOWN_FRAME) { 7769 ppd->unknown_frame_count++; 7770 err &= ~(u64)UNKNOWN_FRAME; 7771 } 7772 if (err) { 7773 /* report remaining errors, but do not do anything */ 7774 dd_dev_err(dd, "8051 info error: %s\n", 7775 dc8051_info_err_string(buf, sizeof(buf), 7776 err)); 7777 } 7778 7779 /* 7780 * Handle host message flags. 7781 */ 7782 if (host_msg & HOST_REQ_DONE) { 7783 /* 7784 * Presently, the driver does a busy wait for 7785 * host requests to complete. This is only an 7786 * informational message. 7787 * NOTE: The 8051 clears the host message 7788 * information *on the next 8051 command*. 7789 * Therefore, when linkup is achieved, 7790 * this flag will still be set. 7791 */ 7792 host_msg &= ~(u64)HOST_REQ_DONE; 7793 } 7794 if (host_msg & BC_SMA_MSG) { 7795 queue_work(ppd->link_wq, &ppd->sma_message_work); 7796 host_msg &= ~(u64)BC_SMA_MSG; 7797 } 7798 if (host_msg & LINKUP_ACHIEVED) { 7799 dd_dev_info(dd, "8051: Link up\n"); 7800 queue_work(ppd->link_wq, &ppd->link_up_work); 7801 host_msg &= ~(u64)LINKUP_ACHIEVED; 7802 } 7803 if (host_msg & EXT_DEVICE_CFG_REQ) { 7804 handle_8051_request(ppd); 7805 host_msg &= ~(u64)EXT_DEVICE_CFG_REQ; 7806 } 7807 if (host_msg & VERIFY_CAP_FRAME) { 7808 queue_work(ppd->link_wq, &ppd->link_vc_work); 7809 host_msg &= ~(u64)VERIFY_CAP_FRAME; 7810 } 7811 if (host_msg & LINK_GOING_DOWN) { 7812 const char *extra = ""; 7813 /* no downgrade action needed if going down */ 7814 if (host_msg & LINK_WIDTH_DOWNGRADED) { 7815 host_msg &= ~(u64)LINK_WIDTH_DOWNGRADED; 7816 extra = " (ignoring downgrade)"; 7817 } 7818 dd_dev_info(dd, "8051: Link down%s\n", extra); 7819 queue_link_down = 1; 7820 host_msg &= ~(u64)LINK_GOING_DOWN; 7821 } 7822 if (host_msg & LINK_WIDTH_DOWNGRADED) { 7823 queue_work(ppd->link_wq, &ppd->link_downgrade_work); 7824 host_msg &= ~(u64)LINK_WIDTH_DOWNGRADED; 7825 } 7826 if (host_msg) { 7827 /* report remaining messages, but do not do anything */ 7828 dd_dev_info(dd, "8051 info host message: %s\n", 7829 dc8051_info_host_msg_string(buf, 7830 sizeof(buf), 7831 host_msg)); 7832 } 7833 7834 reg &= ~DC_DC8051_ERR_FLG_SET_BY_8051_SMASK; 7835 } 7836 if (reg & DC_DC8051_ERR_FLG_LOST_8051_HEART_BEAT_SMASK) { 7837 /* 7838 * Lost the 8051 heartbeat. If this happens, we 7839 * receive constant interrupts about it. Disable 7840 * the interrupt after the first. 7841 */ 7842 dd_dev_err(dd, "Lost 8051 heartbeat\n"); 7843 write_csr(dd, DC_DC8051_ERR_EN, 7844 read_csr(dd, DC_DC8051_ERR_EN) & 7845 ~DC_DC8051_ERR_EN_LOST_8051_HEART_BEAT_SMASK); 7846 7847 reg &= ~DC_DC8051_ERR_FLG_LOST_8051_HEART_BEAT_SMASK; 7848 } 7849 if (reg) { 7850 /* report the error, but do not do anything */ 7851 dd_dev_err(dd, "8051 error: %s\n", 7852 dc8051_err_string(buf, sizeof(buf), reg)); 7853 } 7854 7855 if (queue_link_down) { 7856 /* 7857 * if the link is already going down or disabled, do not 7858 * queue another. If there's a link down entry already 7859 * queued, don't queue another one. 7860 */ 7861 if ((ppd->host_link_state & 7862 (HLS_GOING_OFFLINE | HLS_LINK_COOLDOWN)) || 7863 ppd->link_enabled == 0) { 7864 dd_dev_info(dd, "%s: not queuing link down. host_link_state %x, link_enabled %x\n", 7865 __func__, ppd->host_link_state, 7866 ppd->link_enabled); 7867 } else { 7868 if (xchg(&ppd->is_link_down_queued, 1) == 1) 7869 dd_dev_info(dd, 7870 "%s: link down request already queued\n", 7871 __func__); 7872 else 7873 queue_work(ppd->link_wq, &ppd->link_down_work); 7874 } 7875 } 7876 } 7877 7878 static const char * const fm_config_txt[] = { 7879 [0] = 7880 "BadHeadDist: Distance violation between two head flits", 7881 [1] = 7882 "BadTailDist: Distance violation between two tail flits", 7883 [2] = 7884 "BadCtrlDist: Distance violation between two credit control flits", 7885 [3] = 7886 "BadCrdAck: Credits return for unsupported VL", 7887 [4] = 7888 "UnsupportedVLMarker: Received VL Marker", 7889 [5] = 7890 "BadPreempt: Exceeded the preemption nesting level", 7891 [6] = 7892 "BadControlFlit: Received unsupported control flit", 7893 /* no 7 */ 7894 [8] = 7895 "UnsupportedVLMarker: Received VL Marker for unconfigured or disabled VL", 7896 }; 7897 7898 static const char * const port_rcv_txt[] = { 7899 [1] = 7900 "BadPktLen: Illegal PktLen", 7901 [2] = 7902 "PktLenTooLong: Packet longer than PktLen", 7903 [3] = 7904 "PktLenTooShort: Packet shorter than PktLen", 7905 [4] = 7906 "BadSLID: Illegal SLID (0, using multicast as SLID, does not include security validation of SLID)", 7907 [5] = 7908 "BadDLID: Illegal DLID (0, doesn't match HFI)", 7909 [6] = 7910 "BadL2: Illegal L2 opcode", 7911 [7] = 7912 "BadSC: Unsupported SC", 7913 [9] = 7914 "BadRC: Illegal RC", 7915 [11] = 7916 "PreemptError: Preempting with same VL", 7917 [12] = 7918 "PreemptVL15: Preempting a VL15 packet", 7919 }; 7920 7921 #define OPA_LDR_FMCONFIG_OFFSET 16 7922 #define OPA_LDR_PORTRCV_OFFSET 0 7923 static void handle_dcc_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 7924 { 7925 u64 info, hdr0, hdr1; 7926 const char *extra; 7927 char buf[96]; 7928 struct hfi1_pportdata *ppd = dd->pport; 7929 u8 lcl_reason = 0; 7930 int do_bounce = 0; 7931 7932 if (reg & DCC_ERR_FLG_UNCORRECTABLE_ERR_SMASK) { 7933 if (!(dd->err_info_uncorrectable & OPA_EI_STATUS_SMASK)) { 7934 info = read_csr(dd, DCC_ERR_INFO_UNCORRECTABLE); 7935 dd->err_info_uncorrectable = info & OPA_EI_CODE_SMASK; 7936 /* set status bit */ 7937 dd->err_info_uncorrectable |= OPA_EI_STATUS_SMASK; 7938 } 7939 reg &= ~DCC_ERR_FLG_UNCORRECTABLE_ERR_SMASK; 7940 } 7941 7942 if (reg & DCC_ERR_FLG_LINK_ERR_SMASK) { 7943 struct hfi1_pportdata *ppd = dd->pport; 7944 /* this counter saturates at (2^32) - 1 */ 7945 if (ppd->link_downed < (u32)UINT_MAX) 7946 ppd->link_downed++; 7947 reg &= ~DCC_ERR_FLG_LINK_ERR_SMASK; 7948 } 7949 7950 if (reg & DCC_ERR_FLG_FMCONFIG_ERR_SMASK) { 7951 u8 reason_valid = 1; 7952 7953 info = read_csr(dd, DCC_ERR_INFO_FMCONFIG); 7954 if (!(dd->err_info_fmconfig & OPA_EI_STATUS_SMASK)) { 7955 dd->err_info_fmconfig = info & OPA_EI_CODE_SMASK; 7956 /* set status bit */ 7957 dd->err_info_fmconfig |= OPA_EI_STATUS_SMASK; 7958 } 7959 switch (info) { 7960 case 0: 7961 case 1: 7962 case 2: 7963 case 3: 7964 case 4: 7965 case 5: 7966 case 6: 7967 extra = fm_config_txt[info]; 7968 break; 7969 case 8: 7970 extra = fm_config_txt[info]; 7971 if (ppd->port_error_action & 7972 OPA_PI_MASK_FM_CFG_UNSUPPORTED_VL_MARKER) { 7973 do_bounce = 1; 7974 /* 7975 * lcl_reason cannot be derived from info 7976 * for this error 7977 */ 7978 lcl_reason = 7979 OPA_LINKDOWN_REASON_UNSUPPORTED_VL_MARKER; 7980 } 7981 break; 7982 default: 7983 reason_valid = 0; 7984 snprintf(buf, sizeof(buf), "reserved%lld", info); 7985 extra = buf; 7986 break; 7987 } 7988 7989 if (reason_valid && !do_bounce) { 7990 do_bounce = ppd->port_error_action & 7991 (1 << (OPA_LDR_FMCONFIG_OFFSET + info)); 7992 lcl_reason = info + OPA_LINKDOWN_REASON_BAD_HEAD_DIST; 7993 } 7994 7995 /* just report this */ 7996 dd_dev_info_ratelimited(dd, "DCC Error: fmconfig error: %s\n", 7997 extra); 7998 reg &= ~DCC_ERR_FLG_FMCONFIG_ERR_SMASK; 7999 } 8000 8001 if (reg & DCC_ERR_FLG_RCVPORT_ERR_SMASK) { 8002 u8 reason_valid = 1; 8003 8004 info = read_csr(dd, DCC_ERR_INFO_PORTRCV); 8005 hdr0 = read_csr(dd, DCC_ERR_INFO_PORTRCV_HDR0); 8006 hdr1 = read_csr(dd, DCC_ERR_INFO_PORTRCV_HDR1); 8007 if (!(dd->err_info_rcvport.status_and_code & 8008 OPA_EI_STATUS_SMASK)) { 8009 dd->err_info_rcvport.status_and_code = 8010 info & OPA_EI_CODE_SMASK; 8011 /* set status bit */ 8012 dd->err_info_rcvport.status_and_code |= 8013 OPA_EI_STATUS_SMASK; 8014 /* 8015 * save first 2 flits in the packet that caused 8016 * the error 8017 */ 8018 dd->err_info_rcvport.packet_flit1 = hdr0; 8019 dd->err_info_rcvport.packet_flit2 = hdr1; 8020 } 8021 switch (info) { 8022 case 1: 8023 case 2: 8024 case 3: 8025 case 4: 8026 case 5: 8027 case 6: 8028 case 7: 8029 case 9: 8030 case 11: 8031 case 12: 8032 extra = port_rcv_txt[info]; 8033 break; 8034 default: 8035 reason_valid = 0; 8036 snprintf(buf, sizeof(buf), "reserved%lld", info); 8037 extra = buf; 8038 break; 8039 } 8040 8041 if (reason_valid && !do_bounce) { 8042 do_bounce = ppd->port_error_action & 8043 (1 << (OPA_LDR_PORTRCV_OFFSET + info)); 8044 lcl_reason = info + OPA_LINKDOWN_REASON_RCV_ERROR_0; 8045 } 8046 8047 /* just report this */ 8048 dd_dev_info_ratelimited(dd, "DCC Error: PortRcv error: %s\n" 8049 " hdr0 0x%llx, hdr1 0x%llx\n", 8050 extra, hdr0, hdr1); 8051 8052 reg &= ~DCC_ERR_FLG_RCVPORT_ERR_SMASK; 8053 } 8054 8055 if (reg & DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_UC_SMASK) { 8056 /* informative only */ 8057 dd_dev_info_ratelimited(dd, "8051 access to LCB blocked\n"); 8058 reg &= ~DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_UC_SMASK; 8059 } 8060 if (reg & DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_HOST_SMASK) { 8061 /* informative only */ 8062 dd_dev_info_ratelimited(dd, "host access to LCB blocked\n"); 8063 reg &= ~DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_HOST_SMASK; 8064 } 8065 8066 if (unlikely(hfi1_dbg_fault_suppress_err(&dd->verbs_dev))) 8067 reg &= ~DCC_ERR_FLG_LATE_EBP_ERR_SMASK; 8068 8069 /* report any remaining errors */ 8070 if (reg) 8071 dd_dev_info_ratelimited(dd, "DCC Error: %s\n", 8072 dcc_err_string(buf, sizeof(buf), reg)); 8073 8074 if (lcl_reason == 0) 8075 lcl_reason = OPA_LINKDOWN_REASON_UNKNOWN; 8076 8077 if (do_bounce) { 8078 dd_dev_info_ratelimited(dd, "%s: PortErrorAction bounce\n", 8079 __func__); 8080 set_link_down_reason(ppd, lcl_reason, 0, lcl_reason); 8081 queue_work(ppd->link_wq, &ppd->link_bounce_work); 8082 } 8083 } 8084 8085 static void handle_lcb_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 8086 { 8087 char buf[96]; 8088 8089 dd_dev_info(dd, "LCB Error: %s\n", 8090 lcb_err_string(buf, sizeof(buf), reg)); 8091 } 8092 8093 /* 8094 * CCE block DC interrupt. Source is < 8. 8095 */ 8096 static void is_dc_int(struct hfi1_devdata *dd, unsigned int source) 8097 { 8098 const struct err_reg_info *eri = &dc_errs[source]; 8099 8100 if (eri->handler) { 8101 interrupt_clear_down(dd, 0, eri); 8102 } else if (source == 3 /* dc_lbm_int */) { 8103 /* 8104 * This indicates that a parity error has occurred on the 8105 * address/control lines presented to the LBM. The error 8106 * is a single pulse, there is no associated error flag, 8107 * and it is non-maskable. This is because if a parity 8108 * error occurs on the request the request is dropped. 8109 * This should never occur, but it is nice to know if it 8110 * ever does. 8111 */ 8112 dd_dev_err(dd, "Parity error in DC LBM block\n"); 8113 } else { 8114 dd_dev_err(dd, "Invalid DC interrupt %u\n", source); 8115 } 8116 } 8117 8118 /* 8119 * TX block send credit interrupt. Source is < 160. 8120 */ 8121 static void is_send_credit_int(struct hfi1_devdata *dd, unsigned int source) 8122 { 8123 sc_group_release_update(dd, source); 8124 } 8125 8126 /* 8127 * TX block SDMA interrupt. Source is < 48. 8128 * 8129 * SDMA interrupts are grouped by type: 8130 * 8131 * 0 - N-1 = SDma 8132 * N - 2N-1 = SDmaProgress 8133 * 2N - 3N-1 = SDmaIdle 8134 */ 8135 static void is_sdma_eng_int(struct hfi1_devdata *dd, unsigned int source) 8136 { 8137 /* what interrupt */ 8138 unsigned int what = source / TXE_NUM_SDMA_ENGINES; 8139 /* which engine */ 8140 unsigned int which = source % TXE_NUM_SDMA_ENGINES; 8141 8142 #ifdef CONFIG_SDMA_VERBOSITY 8143 dd_dev_err(dd, "CONFIG SDMA(%u) %s:%d %s()\n", which, 8144 slashstrip(__FILE__), __LINE__, __func__); 8145 sdma_dumpstate(&dd->per_sdma[which]); 8146 #endif 8147 8148 if (likely(what < 3 && which < dd->num_sdma)) { 8149 sdma_engine_interrupt(&dd->per_sdma[which], 1ull << source); 8150 } else { 8151 /* should not happen */ 8152 dd_dev_err(dd, "Invalid SDMA interrupt 0x%x\n", source); 8153 } 8154 } 8155 8156 /** 8157 * is_rcv_avail_int() - User receive context available IRQ handler 8158 * @dd: valid dd 8159 * @source: logical IRQ source (offset from IS_RCVAVAIL_START) 8160 * 8161 * RX block receive available interrupt. Source is < 160. 8162 * 8163 * This is the general interrupt handler for user (PSM) receive contexts, 8164 * and can only be used for non-threaded IRQs. 8165 */ 8166 static void is_rcv_avail_int(struct hfi1_devdata *dd, unsigned int source) 8167 { 8168 struct hfi1_ctxtdata *rcd; 8169 char *err_detail; 8170 8171 if (likely(source < dd->num_rcv_contexts)) { 8172 rcd = hfi1_rcd_get_by_index(dd, source); 8173 if (rcd) { 8174 handle_user_interrupt(rcd); 8175 hfi1_rcd_put(rcd); 8176 return; /* OK */ 8177 } 8178 /* received an interrupt, but no rcd */ 8179 err_detail = "dataless"; 8180 } else { 8181 /* received an interrupt, but are not using that context */ 8182 err_detail = "out of range"; 8183 } 8184 dd_dev_err(dd, "unexpected %s receive available context interrupt %u\n", 8185 err_detail, source); 8186 } 8187 8188 /** 8189 * is_rcv_urgent_int() - User receive context urgent IRQ handler 8190 * @dd: valid dd 8191 * @source: logical IRQ source (offset from IS_RCVURGENT_START) 8192 * 8193 * RX block receive urgent interrupt. Source is < 160. 8194 * 8195 * NOTE: kernel receive contexts specifically do NOT enable this IRQ. 8196 */ 8197 static void is_rcv_urgent_int(struct hfi1_devdata *dd, unsigned int source) 8198 { 8199 struct hfi1_ctxtdata *rcd; 8200 char *err_detail; 8201 8202 if (likely(source < dd->num_rcv_contexts)) { 8203 rcd = hfi1_rcd_get_by_index(dd, source); 8204 if (rcd) { 8205 handle_user_interrupt(rcd); 8206 hfi1_rcd_put(rcd); 8207 return; /* OK */ 8208 } 8209 /* received an interrupt, but no rcd */ 8210 err_detail = "dataless"; 8211 } else { 8212 /* received an interrupt, but are not using that context */ 8213 err_detail = "out of range"; 8214 } 8215 dd_dev_err(dd, "unexpected %s receive urgent context interrupt %u\n", 8216 err_detail, source); 8217 } 8218 8219 /* 8220 * Reserved range interrupt. Should not be called in normal operation. 8221 */ 8222 static void is_reserved_int(struct hfi1_devdata *dd, unsigned int source) 8223 { 8224 char name[64]; 8225 8226 dd_dev_err(dd, "unexpected %s interrupt\n", 8227 is_reserved_name(name, sizeof(name), source)); 8228 } 8229 8230 static const struct is_table is_table[] = { 8231 /* 8232 * start end 8233 * name func interrupt func 8234 */ 8235 { IS_GENERAL_ERR_START, IS_GENERAL_ERR_END, 8236 is_misc_err_name, is_misc_err_int }, 8237 { IS_SDMAENG_ERR_START, IS_SDMAENG_ERR_END, 8238 is_sdma_eng_err_name, is_sdma_eng_err_int }, 8239 { IS_SENDCTXT_ERR_START, IS_SENDCTXT_ERR_END, 8240 is_sendctxt_err_name, is_sendctxt_err_int }, 8241 { IS_SDMA_START, IS_SDMA_IDLE_END, 8242 is_sdma_eng_name, is_sdma_eng_int }, 8243 { IS_VARIOUS_START, IS_VARIOUS_END, 8244 is_various_name, is_various_int }, 8245 { IS_DC_START, IS_DC_END, 8246 is_dc_name, is_dc_int }, 8247 { IS_RCVAVAIL_START, IS_RCVAVAIL_END, 8248 is_rcv_avail_name, is_rcv_avail_int }, 8249 { IS_RCVURGENT_START, IS_RCVURGENT_END, 8250 is_rcv_urgent_name, is_rcv_urgent_int }, 8251 { IS_SENDCREDIT_START, IS_SENDCREDIT_END, 8252 is_send_credit_name, is_send_credit_int}, 8253 { IS_RESERVED_START, IS_RESERVED_END, 8254 is_reserved_name, is_reserved_int}, 8255 }; 8256 8257 /* 8258 * Interrupt source interrupt - called when the given source has an interrupt. 8259 * Source is a bit index into an array of 64-bit integers. 8260 */ 8261 static void is_interrupt(struct hfi1_devdata *dd, unsigned int source) 8262 { 8263 const struct is_table *entry; 8264 8265 /* avoids a double compare by walking the table in-order */ 8266 for (entry = &is_table[0]; entry->is_name; entry++) { 8267 if (source <= entry->end) { 8268 trace_hfi1_interrupt(dd, entry, source); 8269 entry->is_int(dd, source - entry->start); 8270 return; 8271 } 8272 } 8273 /* fell off the end */ 8274 dd_dev_err(dd, "invalid interrupt source %u\n", source); 8275 } 8276 8277 /** 8278 * general_interrupt - General interrupt handler 8279 * @irq: MSIx IRQ vector 8280 * @data: hfi1 devdata 8281 * 8282 * This is able to correctly handle all non-threaded interrupts. Receive 8283 * context DATA IRQs are threaded and are not supported by this handler. 8284 * 8285 */ 8286 irqreturn_t general_interrupt(int irq, void *data) 8287 { 8288 struct hfi1_devdata *dd = data; 8289 u64 regs[CCE_NUM_INT_CSRS]; 8290 u32 bit; 8291 int i; 8292 irqreturn_t handled = IRQ_NONE; 8293 8294 this_cpu_inc(*dd->int_counter); 8295 8296 /* phase 1: scan and clear all handled interrupts */ 8297 for (i = 0; i < CCE_NUM_INT_CSRS; i++) { 8298 if (dd->gi_mask[i] == 0) { 8299 regs[i] = 0; /* used later */ 8300 continue; 8301 } 8302 regs[i] = read_csr(dd, CCE_INT_STATUS + (8 * i)) & 8303 dd->gi_mask[i]; 8304 /* only clear if anything is set */ 8305 if (regs[i]) 8306 write_csr(dd, CCE_INT_CLEAR + (8 * i), regs[i]); 8307 } 8308 8309 /* phase 2: call the appropriate handler */ 8310 for_each_set_bit(bit, (unsigned long *)®s[0], 8311 CCE_NUM_INT_CSRS * 64) { 8312 is_interrupt(dd, bit); 8313 handled = IRQ_HANDLED; 8314 } 8315 8316 return handled; 8317 } 8318 8319 irqreturn_t sdma_interrupt(int irq, void *data) 8320 { 8321 struct sdma_engine *sde = data; 8322 struct hfi1_devdata *dd = sde->dd; 8323 u64 status; 8324 8325 #ifdef CONFIG_SDMA_VERBOSITY 8326 dd_dev_err(dd, "CONFIG SDMA(%u) %s:%d %s()\n", sde->this_idx, 8327 slashstrip(__FILE__), __LINE__, __func__); 8328 sdma_dumpstate(sde); 8329 #endif 8330 8331 this_cpu_inc(*dd->int_counter); 8332 8333 /* This read_csr is really bad in the hot path */ 8334 status = read_csr(dd, 8335 CCE_INT_STATUS + (8 * (IS_SDMA_START / 64))) 8336 & sde->imask; 8337 if (likely(status)) { 8338 /* clear the interrupt(s) */ 8339 write_csr(dd, 8340 CCE_INT_CLEAR + (8 * (IS_SDMA_START / 64)), 8341 status); 8342 8343 /* handle the interrupt(s) */ 8344 sdma_engine_interrupt(sde, status); 8345 } else { 8346 dd_dev_info_ratelimited(dd, "SDMA engine %u interrupt, but no status bits set\n", 8347 sde->this_idx); 8348 } 8349 return IRQ_HANDLED; 8350 } 8351 8352 /* 8353 * Clear the receive interrupt. Use a read of the interrupt clear CSR 8354 * to insure that the write completed. This does NOT guarantee that 8355 * queued DMA writes to memory from the chip are pushed. 8356 */ 8357 static inline void clear_recv_intr(struct hfi1_ctxtdata *rcd) 8358 { 8359 struct hfi1_devdata *dd = rcd->dd; 8360 u32 addr = CCE_INT_CLEAR + (8 * rcd->ireg); 8361 8362 write_csr(dd, addr, rcd->imask); 8363 /* force the above write on the chip and get a value back */ 8364 (void)read_csr(dd, addr); 8365 } 8366 8367 /* force the receive interrupt */ 8368 void force_recv_intr(struct hfi1_ctxtdata *rcd) 8369 { 8370 write_csr(rcd->dd, CCE_INT_FORCE + (8 * rcd->ireg), rcd->imask); 8371 } 8372 8373 /* 8374 * Return non-zero if a packet is present. 8375 * 8376 * This routine is called when rechecking for packets after the RcvAvail 8377 * interrupt has been cleared down. First, do a quick check of memory for 8378 * a packet present. If not found, use an expensive CSR read of the context 8379 * tail to determine the actual tail. The CSR read is necessary because there 8380 * is no method to push pending DMAs to memory other than an interrupt and we 8381 * are trying to determine if we need to force an interrupt. 8382 */ 8383 static inline int check_packet_present(struct hfi1_ctxtdata *rcd) 8384 { 8385 u32 tail; 8386 8387 if (hfi1_packet_present(rcd)) 8388 return 1; 8389 8390 /* fall back to a CSR read, correct indpendent of DMA_RTAIL */ 8391 tail = (u32)read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_TAIL); 8392 return hfi1_rcd_head(rcd) != tail; 8393 } 8394 8395 /* 8396 * Common code for receive contexts interrupt handlers. 8397 * Update traces, increment kernel IRQ counter and 8398 * setup ASPM when needed. 8399 */ 8400 static void receive_interrupt_common(struct hfi1_ctxtdata *rcd) 8401 { 8402 struct hfi1_devdata *dd = rcd->dd; 8403 8404 trace_hfi1_receive_interrupt(dd, rcd); 8405 this_cpu_inc(*dd->int_counter); 8406 aspm_ctx_disable(rcd); 8407 } 8408 8409 /* 8410 * __hfi1_rcd_eoi_intr() - Make HW issue receive interrupt 8411 * when there are packets present in the queue. When calling 8412 * with interrupts enabled please use hfi1_rcd_eoi_intr. 8413 * 8414 * @rcd: valid receive context 8415 */ 8416 static void __hfi1_rcd_eoi_intr(struct hfi1_ctxtdata *rcd) 8417 { 8418 if (!rcd->rcvhdrq) 8419 return; 8420 clear_recv_intr(rcd); 8421 if (check_packet_present(rcd)) 8422 force_recv_intr(rcd); 8423 } 8424 8425 /** 8426 * hfi1_rcd_eoi_intr() - End of Interrupt processing action 8427 * 8428 * @rcd: Ptr to hfi1_ctxtdata of receive context 8429 * 8430 * Hold IRQs so we can safely clear the interrupt and 8431 * recheck for a packet that may have arrived after the previous 8432 * check and the interrupt clear. If a packet arrived, force another 8433 * interrupt. This routine can be called at the end of receive packet 8434 * processing in interrupt service routines, interrupt service thread 8435 * and softirqs 8436 */ 8437 static void hfi1_rcd_eoi_intr(struct hfi1_ctxtdata *rcd) 8438 { 8439 unsigned long flags; 8440 8441 local_irq_save(flags); 8442 __hfi1_rcd_eoi_intr(rcd); 8443 local_irq_restore(flags); 8444 } 8445 8446 /** 8447 * hfi1_netdev_rx_napi - napi poll function to move eoi inline 8448 * @napi: pointer to napi object 8449 * @budget: netdev budget 8450 */ 8451 int hfi1_netdev_rx_napi(struct napi_struct *napi, int budget) 8452 { 8453 struct hfi1_netdev_rxq *rxq = container_of(napi, 8454 struct hfi1_netdev_rxq, napi); 8455 struct hfi1_ctxtdata *rcd = rxq->rcd; 8456 int work_done = 0; 8457 8458 work_done = rcd->do_interrupt(rcd, budget); 8459 8460 if (work_done < budget) { 8461 napi_complete_done(napi, work_done); 8462 hfi1_rcd_eoi_intr(rcd); 8463 } 8464 8465 return work_done; 8466 } 8467 8468 /* Receive packet napi handler for netdevs VNIC and AIP */ 8469 irqreturn_t receive_context_interrupt_napi(int irq, void *data) 8470 { 8471 struct hfi1_ctxtdata *rcd = data; 8472 8473 receive_interrupt_common(rcd); 8474 8475 if (likely(rcd->napi)) { 8476 if (likely(napi_schedule_prep(rcd->napi))) 8477 __napi_schedule_irqoff(rcd->napi); 8478 else 8479 __hfi1_rcd_eoi_intr(rcd); 8480 } else { 8481 WARN_ONCE(1, "Napi IRQ handler without napi set up ctxt=%d\n", 8482 rcd->ctxt); 8483 __hfi1_rcd_eoi_intr(rcd); 8484 } 8485 8486 return IRQ_HANDLED; 8487 } 8488 8489 /* 8490 * Receive packet IRQ handler. This routine expects to be on its own IRQ. 8491 * This routine will try to handle packets immediately (latency), but if 8492 * it finds too many, it will invoke the thread handler (bandwitdh). The 8493 * chip receive interrupt is *not* cleared down until this or the thread (if 8494 * invoked) is finished. The intent is to avoid extra interrupts while we 8495 * are processing packets anyway. 8496 */ 8497 irqreturn_t receive_context_interrupt(int irq, void *data) 8498 { 8499 struct hfi1_ctxtdata *rcd = data; 8500 int disposition; 8501 8502 receive_interrupt_common(rcd); 8503 8504 /* receive interrupt remains blocked while processing packets */ 8505 disposition = rcd->do_interrupt(rcd, 0); 8506 8507 /* 8508 * Too many packets were seen while processing packets in this 8509 * IRQ handler. Invoke the handler thread. The receive interrupt 8510 * remains blocked. 8511 */ 8512 if (disposition == RCV_PKT_LIMIT) 8513 return IRQ_WAKE_THREAD; 8514 8515 __hfi1_rcd_eoi_intr(rcd); 8516 return IRQ_HANDLED; 8517 } 8518 8519 /* 8520 * Receive packet thread handler. This expects to be invoked with the 8521 * receive interrupt still blocked. 8522 */ 8523 irqreturn_t receive_context_thread(int irq, void *data) 8524 { 8525 struct hfi1_ctxtdata *rcd = data; 8526 8527 /* receive interrupt is still blocked from the IRQ handler */ 8528 (void)rcd->do_interrupt(rcd, 1); 8529 8530 hfi1_rcd_eoi_intr(rcd); 8531 8532 return IRQ_HANDLED; 8533 } 8534 8535 /* ========================================================================= */ 8536 8537 u32 read_physical_state(struct hfi1_devdata *dd) 8538 { 8539 u64 reg; 8540 8541 reg = read_csr(dd, DC_DC8051_STS_CUR_STATE); 8542 return (reg >> DC_DC8051_STS_CUR_STATE_PORT_SHIFT) 8543 & DC_DC8051_STS_CUR_STATE_PORT_MASK; 8544 } 8545 8546 u32 read_logical_state(struct hfi1_devdata *dd) 8547 { 8548 u64 reg; 8549 8550 reg = read_csr(dd, DCC_CFG_PORT_CONFIG); 8551 return (reg >> DCC_CFG_PORT_CONFIG_LINK_STATE_SHIFT) 8552 & DCC_CFG_PORT_CONFIG_LINK_STATE_MASK; 8553 } 8554 8555 static void set_logical_state(struct hfi1_devdata *dd, u32 chip_lstate) 8556 { 8557 u64 reg; 8558 8559 reg = read_csr(dd, DCC_CFG_PORT_CONFIG); 8560 /* clear current state, set new state */ 8561 reg &= ~DCC_CFG_PORT_CONFIG_LINK_STATE_SMASK; 8562 reg |= (u64)chip_lstate << DCC_CFG_PORT_CONFIG_LINK_STATE_SHIFT; 8563 write_csr(dd, DCC_CFG_PORT_CONFIG, reg); 8564 } 8565 8566 /* 8567 * Use the 8051 to read a LCB CSR. 8568 */ 8569 static int read_lcb_via_8051(struct hfi1_devdata *dd, u32 addr, u64 *data) 8570 { 8571 u32 regno; 8572 int ret; 8573 8574 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) { 8575 if (acquire_lcb_access(dd, 0) == 0) { 8576 *data = read_csr(dd, addr); 8577 release_lcb_access(dd, 0); 8578 return 0; 8579 } 8580 return -EBUSY; 8581 } 8582 8583 /* register is an index of LCB registers: (offset - base) / 8 */ 8584 regno = (addr - DC_LCB_CFG_RUN) >> 3; 8585 ret = do_8051_command(dd, HCMD_READ_LCB_CSR, regno, data); 8586 if (ret != HCMD_SUCCESS) 8587 return -EBUSY; 8588 return 0; 8589 } 8590 8591 /* 8592 * Provide a cache for some of the LCB registers in case the LCB is 8593 * unavailable. 8594 * (The LCB is unavailable in certain link states, for example.) 8595 */ 8596 struct lcb_datum { 8597 u32 off; 8598 u64 val; 8599 }; 8600 8601 static struct lcb_datum lcb_cache[] = { 8602 { DC_LCB_ERR_INFO_RX_REPLAY_CNT, 0}, 8603 { DC_LCB_ERR_INFO_SEQ_CRC_CNT, 0 }, 8604 { DC_LCB_ERR_INFO_REINIT_FROM_PEER_CNT, 0 }, 8605 }; 8606 8607 static void update_lcb_cache(struct hfi1_devdata *dd) 8608 { 8609 int i; 8610 int ret; 8611 u64 val; 8612 8613 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) { 8614 ret = read_lcb_csr(dd, lcb_cache[i].off, &val); 8615 8616 /* Update if we get good data */ 8617 if (likely(ret != -EBUSY)) 8618 lcb_cache[i].val = val; 8619 } 8620 } 8621 8622 static int read_lcb_cache(u32 off, u64 *val) 8623 { 8624 int i; 8625 8626 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) { 8627 if (lcb_cache[i].off == off) { 8628 *val = lcb_cache[i].val; 8629 return 0; 8630 } 8631 } 8632 8633 pr_warn("%s bad offset 0x%x\n", __func__, off); 8634 return -1; 8635 } 8636 8637 /* 8638 * Read an LCB CSR. Access may not be in host control, so check. 8639 * Return 0 on success, -EBUSY on failure. 8640 */ 8641 int read_lcb_csr(struct hfi1_devdata *dd, u32 addr, u64 *data) 8642 { 8643 struct hfi1_pportdata *ppd = dd->pport; 8644 8645 /* if up, go through the 8051 for the value */ 8646 if (ppd->host_link_state & HLS_UP) 8647 return read_lcb_via_8051(dd, addr, data); 8648 /* if going up or down, check the cache, otherwise, no access */ 8649 if (ppd->host_link_state & (HLS_GOING_UP | HLS_GOING_OFFLINE)) { 8650 if (read_lcb_cache(addr, data)) 8651 return -EBUSY; 8652 return 0; 8653 } 8654 8655 /* otherwise, host has access */ 8656 *data = read_csr(dd, addr); 8657 return 0; 8658 } 8659 8660 /* 8661 * Use the 8051 to write a LCB CSR. 8662 */ 8663 static int write_lcb_via_8051(struct hfi1_devdata *dd, u32 addr, u64 data) 8664 { 8665 u32 regno; 8666 int ret; 8667 8668 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR || 8669 (dd->dc8051_ver < dc8051_ver(0, 20, 0))) { 8670 if (acquire_lcb_access(dd, 0) == 0) { 8671 write_csr(dd, addr, data); 8672 release_lcb_access(dd, 0); 8673 return 0; 8674 } 8675 return -EBUSY; 8676 } 8677 8678 /* register is an index of LCB registers: (offset - base) / 8 */ 8679 regno = (addr - DC_LCB_CFG_RUN) >> 3; 8680 ret = do_8051_command(dd, HCMD_WRITE_LCB_CSR, regno, &data); 8681 if (ret != HCMD_SUCCESS) 8682 return -EBUSY; 8683 return 0; 8684 } 8685 8686 /* 8687 * Write an LCB CSR. Access may not be in host control, so check. 8688 * Return 0 on success, -EBUSY on failure. 8689 */ 8690 int write_lcb_csr(struct hfi1_devdata *dd, u32 addr, u64 data) 8691 { 8692 struct hfi1_pportdata *ppd = dd->pport; 8693 8694 /* if up, go through the 8051 for the value */ 8695 if (ppd->host_link_state & HLS_UP) 8696 return write_lcb_via_8051(dd, addr, data); 8697 /* if going up or down, no access */ 8698 if (ppd->host_link_state & (HLS_GOING_UP | HLS_GOING_OFFLINE)) 8699 return -EBUSY; 8700 /* otherwise, host has access */ 8701 write_csr(dd, addr, data); 8702 return 0; 8703 } 8704 8705 /* 8706 * Returns: 8707 * < 0 = Linux error, not able to get access 8708 * > 0 = 8051 command RETURN_CODE 8709 */ 8710 static int do_8051_command(struct hfi1_devdata *dd, u32 type, u64 in_data, 8711 u64 *out_data) 8712 { 8713 u64 reg, completed; 8714 int return_code; 8715 unsigned long timeout; 8716 8717 hfi1_cdbg(DC8051, "type %d, data 0x%012llx", type, in_data); 8718 8719 mutex_lock(&dd->dc8051_lock); 8720 8721 /* We can't send any commands to the 8051 if it's in reset */ 8722 if (dd->dc_shutdown) { 8723 return_code = -ENODEV; 8724 goto fail; 8725 } 8726 8727 /* 8728 * If an 8051 host command timed out previously, then the 8051 is 8729 * stuck. 8730 * 8731 * On first timeout, attempt to reset and restart the entire DC 8732 * block (including 8051). (Is this too big of a hammer?) 8733 * 8734 * If the 8051 times out a second time, the reset did not bring it 8735 * back to healthy life. In that case, fail any subsequent commands. 8736 */ 8737 if (dd->dc8051_timed_out) { 8738 if (dd->dc8051_timed_out > 1) { 8739 dd_dev_err(dd, 8740 "Previous 8051 host command timed out, skipping command %u\n", 8741 type); 8742 return_code = -ENXIO; 8743 goto fail; 8744 } 8745 _dc_shutdown(dd); 8746 _dc_start(dd); 8747 } 8748 8749 /* 8750 * If there is no timeout, then the 8051 command interface is 8751 * waiting for a command. 8752 */ 8753 8754 /* 8755 * When writing a LCB CSR, out_data contains the full value to 8756 * to be written, while in_data contains the relative LCB 8757 * address in 7:0. Do the work here, rather than the caller, 8758 * of distrubting the write data to where it needs to go: 8759 * 8760 * Write data 8761 * 39:00 -> in_data[47:8] 8762 * 47:40 -> DC8051_CFG_EXT_DEV_0.RETURN_CODE 8763 * 63:48 -> DC8051_CFG_EXT_DEV_0.RSP_DATA 8764 */ 8765 if (type == HCMD_WRITE_LCB_CSR) { 8766 in_data |= ((*out_data) & 0xffffffffffull) << 8; 8767 /* must preserve COMPLETED - it is tied to hardware */ 8768 reg = read_csr(dd, DC_DC8051_CFG_EXT_DEV_0); 8769 reg &= DC_DC8051_CFG_EXT_DEV_0_COMPLETED_SMASK; 8770 reg |= ((((*out_data) >> 40) & 0xff) << 8771 DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT) 8772 | ((((*out_data) >> 48) & 0xffff) << 8773 DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT); 8774 write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, reg); 8775 } 8776 8777 /* 8778 * Do two writes: the first to stabilize the type and req_data, the 8779 * second to activate. 8780 */ 8781 reg = ((u64)type & DC_DC8051_CFG_HOST_CMD_0_REQ_TYPE_MASK) 8782 << DC_DC8051_CFG_HOST_CMD_0_REQ_TYPE_SHIFT 8783 | (in_data & DC_DC8051_CFG_HOST_CMD_0_REQ_DATA_MASK) 8784 << DC_DC8051_CFG_HOST_CMD_0_REQ_DATA_SHIFT; 8785 write_csr(dd, DC_DC8051_CFG_HOST_CMD_0, reg); 8786 reg |= DC_DC8051_CFG_HOST_CMD_0_REQ_NEW_SMASK; 8787 write_csr(dd, DC_DC8051_CFG_HOST_CMD_0, reg); 8788 8789 /* wait for completion, alternate: interrupt */ 8790 timeout = jiffies + msecs_to_jiffies(DC8051_COMMAND_TIMEOUT); 8791 while (1) { 8792 reg = read_csr(dd, DC_DC8051_CFG_HOST_CMD_1); 8793 completed = reg & DC_DC8051_CFG_HOST_CMD_1_COMPLETED_SMASK; 8794 if (completed) 8795 break; 8796 if (time_after(jiffies, timeout)) { 8797 dd->dc8051_timed_out++; 8798 dd_dev_err(dd, "8051 host command %u timeout\n", type); 8799 if (out_data) 8800 *out_data = 0; 8801 return_code = -ETIMEDOUT; 8802 goto fail; 8803 } 8804 udelay(2); 8805 } 8806 8807 if (out_data) { 8808 *out_data = (reg >> DC_DC8051_CFG_HOST_CMD_1_RSP_DATA_SHIFT) 8809 & DC_DC8051_CFG_HOST_CMD_1_RSP_DATA_MASK; 8810 if (type == HCMD_READ_LCB_CSR) { 8811 /* top 16 bits are in a different register */ 8812 *out_data |= (read_csr(dd, DC_DC8051_CFG_EXT_DEV_1) 8813 & DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_SMASK) 8814 << (48 8815 - DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_SHIFT); 8816 } 8817 } 8818 return_code = (reg >> DC_DC8051_CFG_HOST_CMD_1_RETURN_CODE_SHIFT) 8819 & DC_DC8051_CFG_HOST_CMD_1_RETURN_CODE_MASK; 8820 dd->dc8051_timed_out = 0; 8821 /* 8822 * Clear command for next user. 8823 */ 8824 write_csr(dd, DC_DC8051_CFG_HOST_CMD_0, 0); 8825 8826 fail: 8827 mutex_unlock(&dd->dc8051_lock); 8828 return return_code; 8829 } 8830 8831 static int set_physical_link_state(struct hfi1_devdata *dd, u64 state) 8832 { 8833 return do_8051_command(dd, HCMD_CHANGE_PHY_STATE, state, NULL); 8834 } 8835 8836 int load_8051_config(struct hfi1_devdata *dd, u8 field_id, 8837 u8 lane_id, u32 config_data) 8838 { 8839 u64 data; 8840 int ret; 8841 8842 data = (u64)field_id << LOAD_DATA_FIELD_ID_SHIFT 8843 | (u64)lane_id << LOAD_DATA_LANE_ID_SHIFT 8844 | (u64)config_data << LOAD_DATA_DATA_SHIFT; 8845 ret = do_8051_command(dd, HCMD_LOAD_CONFIG_DATA, data, NULL); 8846 if (ret != HCMD_SUCCESS) { 8847 dd_dev_err(dd, 8848 "load 8051 config: field id %d, lane %d, err %d\n", 8849 (int)field_id, (int)lane_id, ret); 8850 } 8851 return ret; 8852 } 8853 8854 /* 8855 * Read the 8051 firmware "registers". Use the RAM directly. Always 8856 * set the result, even on error. 8857 * Return 0 on success, -errno on failure 8858 */ 8859 int read_8051_config(struct hfi1_devdata *dd, u8 field_id, u8 lane_id, 8860 u32 *result) 8861 { 8862 u64 big_data; 8863 u32 addr; 8864 int ret; 8865 8866 /* address start depends on the lane_id */ 8867 if (lane_id < 4) 8868 addr = (4 * NUM_GENERAL_FIELDS) 8869 + (lane_id * 4 * NUM_LANE_FIELDS); 8870 else 8871 addr = 0; 8872 addr += field_id * 4; 8873 8874 /* read is in 8-byte chunks, hardware will truncate the address down */ 8875 ret = read_8051_data(dd, addr, 8, &big_data); 8876 8877 if (ret == 0) { 8878 /* extract the 4 bytes we want */ 8879 if (addr & 0x4) 8880 *result = (u32)(big_data >> 32); 8881 else 8882 *result = (u32)big_data; 8883 } else { 8884 *result = 0; 8885 dd_dev_err(dd, "%s: direct read failed, lane %d, field %d!\n", 8886 __func__, lane_id, field_id); 8887 } 8888 8889 return ret; 8890 } 8891 8892 static int write_vc_local_phy(struct hfi1_devdata *dd, u8 power_management, 8893 u8 continuous) 8894 { 8895 u32 frame; 8896 8897 frame = continuous << CONTINIOUS_REMOTE_UPDATE_SUPPORT_SHIFT 8898 | power_management << POWER_MANAGEMENT_SHIFT; 8899 return load_8051_config(dd, VERIFY_CAP_LOCAL_PHY, 8900 GENERAL_CONFIG, frame); 8901 } 8902 8903 static int write_vc_local_fabric(struct hfi1_devdata *dd, u8 vau, u8 z, u8 vcu, 8904 u16 vl15buf, u8 crc_sizes) 8905 { 8906 u32 frame; 8907 8908 frame = (u32)vau << VAU_SHIFT 8909 | (u32)z << Z_SHIFT 8910 | (u32)vcu << VCU_SHIFT 8911 | (u32)vl15buf << VL15BUF_SHIFT 8912 | (u32)crc_sizes << CRC_SIZES_SHIFT; 8913 return load_8051_config(dd, VERIFY_CAP_LOCAL_FABRIC, 8914 GENERAL_CONFIG, frame); 8915 } 8916 8917 static void read_vc_local_link_mode(struct hfi1_devdata *dd, u8 *misc_bits, 8918 u8 *flag_bits, u16 *link_widths) 8919 { 8920 u32 frame; 8921 8922 read_8051_config(dd, VERIFY_CAP_LOCAL_LINK_MODE, GENERAL_CONFIG, 8923 &frame); 8924 *misc_bits = (frame >> MISC_CONFIG_BITS_SHIFT) & MISC_CONFIG_BITS_MASK; 8925 *flag_bits = (frame >> LOCAL_FLAG_BITS_SHIFT) & LOCAL_FLAG_BITS_MASK; 8926 *link_widths = (frame >> LINK_WIDTH_SHIFT) & LINK_WIDTH_MASK; 8927 } 8928 8929 static int write_vc_local_link_mode(struct hfi1_devdata *dd, 8930 u8 misc_bits, 8931 u8 flag_bits, 8932 u16 link_widths) 8933 { 8934 u32 frame; 8935 8936 frame = (u32)misc_bits << MISC_CONFIG_BITS_SHIFT 8937 | (u32)flag_bits << LOCAL_FLAG_BITS_SHIFT 8938 | (u32)link_widths << LINK_WIDTH_SHIFT; 8939 return load_8051_config(dd, VERIFY_CAP_LOCAL_LINK_MODE, GENERAL_CONFIG, 8940 frame); 8941 } 8942 8943 static int write_local_device_id(struct hfi1_devdata *dd, u16 device_id, 8944 u8 device_rev) 8945 { 8946 u32 frame; 8947 8948 frame = ((u32)device_id << LOCAL_DEVICE_ID_SHIFT) 8949 | ((u32)device_rev << LOCAL_DEVICE_REV_SHIFT); 8950 return load_8051_config(dd, LOCAL_DEVICE_ID, GENERAL_CONFIG, frame); 8951 } 8952 8953 static void read_remote_device_id(struct hfi1_devdata *dd, u16 *device_id, 8954 u8 *device_rev) 8955 { 8956 u32 frame; 8957 8958 read_8051_config(dd, REMOTE_DEVICE_ID, GENERAL_CONFIG, &frame); 8959 *device_id = (frame >> REMOTE_DEVICE_ID_SHIFT) & REMOTE_DEVICE_ID_MASK; 8960 *device_rev = (frame >> REMOTE_DEVICE_REV_SHIFT) 8961 & REMOTE_DEVICE_REV_MASK; 8962 } 8963 8964 int write_host_interface_version(struct hfi1_devdata *dd, u8 version) 8965 { 8966 u32 frame; 8967 u32 mask; 8968 8969 mask = (HOST_INTERFACE_VERSION_MASK << HOST_INTERFACE_VERSION_SHIFT); 8970 read_8051_config(dd, RESERVED_REGISTERS, GENERAL_CONFIG, &frame); 8971 /* Clear, then set field */ 8972 frame &= ~mask; 8973 frame |= ((u32)version << HOST_INTERFACE_VERSION_SHIFT); 8974 return load_8051_config(dd, RESERVED_REGISTERS, GENERAL_CONFIG, 8975 frame); 8976 } 8977 8978 void read_misc_status(struct hfi1_devdata *dd, u8 *ver_major, u8 *ver_minor, 8979 u8 *ver_patch) 8980 { 8981 u32 frame; 8982 8983 read_8051_config(dd, MISC_STATUS, GENERAL_CONFIG, &frame); 8984 *ver_major = (frame >> STS_FM_VERSION_MAJOR_SHIFT) & 8985 STS_FM_VERSION_MAJOR_MASK; 8986 *ver_minor = (frame >> STS_FM_VERSION_MINOR_SHIFT) & 8987 STS_FM_VERSION_MINOR_MASK; 8988 8989 read_8051_config(dd, VERSION_PATCH, GENERAL_CONFIG, &frame); 8990 *ver_patch = (frame >> STS_FM_VERSION_PATCH_SHIFT) & 8991 STS_FM_VERSION_PATCH_MASK; 8992 } 8993 8994 static void read_vc_remote_phy(struct hfi1_devdata *dd, u8 *power_management, 8995 u8 *continuous) 8996 { 8997 u32 frame; 8998 8999 read_8051_config(dd, VERIFY_CAP_REMOTE_PHY, GENERAL_CONFIG, &frame); 9000 *power_management = (frame >> POWER_MANAGEMENT_SHIFT) 9001 & POWER_MANAGEMENT_MASK; 9002 *continuous = (frame >> CONTINIOUS_REMOTE_UPDATE_SUPPORT_SHIFT) 9003 & CONTINIOUS_REMOTE_UPDATE_SUPPORT_MASK; 9004 } 9005 9006 static void read_vc_remote_fabric(struct hfi1_devdata *dd, u8 *vau, u8 *z, 9007 u8 *vcu, u16 *vl15buf, u8 *crc_sizes) 9008 { 9009 u32 frame; 9010 9011 read_8051_config(dd, VERIFY_CAP_REMOTE_FABRIC, GENERAL_CONFIG, &frame); 9012 *vau = (frame >> VAU_SHIFT) & VAU_MASK; 9013 *z = (frame >> Z_SHIFT) & Z_MASK; 9014 *vcu = (frame >> VCU_SHIFT) & VCU_MASK; 9015 *vl15buf = (frame >> VL15BUF_SHIFT) & VL15BUF_MASK; 9016 *crc_sizes = (frame >> CRC_SIZES_SHIFT) & CRC_SIZES_MASK; 9017 } 9018 9019 static void read_vc_remote_link_width(struct hfi1_devdata *dd, 9020 u8 *remote_tx_rate, 9021 u16 *link_widths) 9022 { 9023 u32 frame; 9024 9025 read_8051_config(dd, VERIFY_CAP_REMOTE_LINK_WIDTH, GENERAL_CONFIG, 9026 &frame); 9027 *remote_tx_rate = (frame >> REMOTE_TX_RATE_SHIFT) 9028 & REMOTE_TX_RATE_MASK; 9029 *link_widths = (frame >> LINK_WIDTH_SHIFT) & LINK_WIDTH_MASK; 9030 } 9031 9032 static void read_local_lni(struct hfi1_devdata *dd, u8 *enable_lane_rx) 9033 { 9034 u32 frame; 9035 9036 read_8051_config(dd, LOCAL_LNI_INFO, GENERAL_CONFIG, &frame); 9037 *enable_lane_rx = (frame >> ENABLE_LANE_RX_SHIFT) & ENABLE_LANE_RX_MASK; 9038 } 9039 9040 static void read_last_local_state(struct hfi1_devdata *dd, u32 *lls) 9041 { 9042 read_8051_config(dd, LAST_LOCAL_STATE_COMPLETE, GENERAL_CONFIG, lls); 9043 } 9044 9045 static void read_last_remote_state(struct hfi1_devdata *dd, u32 *lrs) 9046 { 9047 read_8051_config(dd, LAST_REMOTE_STATE_COMPLETE, GENERAL_CONFIG, lrs); 9048 } 9049 9050 void hfi1_read_link_quality(struct hfi1_devdata *dd, u8 *link_quality) 9051 { 9052 u32 frame; 9053 int ret; 9054 9055 *link_quality = 0; 9056 if (dd->pport->host_link_state & HLS_UP) { 9057 ret = read_8051_config(dd, LINK_QUALITY_INFO, GENERAL_CONFIG, 9058 &frame); 9059 if (ret == 0) 9060 *link_quality = (frame >> LINK_QUALITY_SHIFT) 9061 & LINK_QUALITY_MASK; 9062 } 9063 } 9064 9065 static void read_planned_down_reason_code(struct hfi1_devdata *dd, u8 *pdrrc) 9066 { 9067 u32 frame; 9068 9069 read_8051_config(dd, LINK_QUALITY_INFO, GENERAL_CONFIG, &frame); 9070 *pdrrc = (frame >> DOWN_REMOTE_REASON_SHIFT) & DOWN_REMOTE_REASON_MASK; 9071 } 9072 9073 static void read_link_down_reason(struct hfi1_devdata *dd, u8 *ldr) 9074 { 9075 u32 frame; 9076 9077 read_8051_config(dd, LINK_DOWN_REASON, GENERAL_CONFIG, &frame); 9078 *ldr = (frame & 0xff); 9079 } 9080 9081 static int read_tx_settings(struct hfi1_devdata *dd, 9082 u8 *enable_lane_tx, 9083 u8 *tx_polarity_inversion, 9084 u8 *rx_polarity_inversion, 9085 u8 *max_rate) 9086 { 9087 u32 frame; 9088 int ret; 9089 9090 ret = read_8051_config(dd, TX_SETTINGS, GENERAL_CONFIG, &frame); 9091 *enable_lane_tx = (frame >> ENABLE_LANE_TX_SHIFT) 9092 & ENABLE_LANE_TX_MASK; 9093 *tx_polarity_inversion = (frame >> TX_POLARITY_INVERSION_SHIFT) 9094 & TX_POLARITY_INVERSION_MASK; 9095 *rx_polarity_inversion = (frame >> RX_POLARITY_INVERSION_SHIFT) 9096 & RX_POLARITY_INVERSION_MASK; 9097 *max_rate = (frame >> MAX_RATE_SHIFT) & MAX_RATE_MASK; 9098 return ret; 9099 } 9100 9101 static int write_tx_settings(struct hfi1_devdata *dd, 9102 u8 enable_lane_tx, 9103 u8 tx_polarity_inversion, 9104 u8 rx_polarity_inversion, 9105 u8 max_rate) 9106 { 9107 u32 frame; 9108 9109 /* no need to mask, all variable sizes match field widths */ 9110 frame = enable_lane_tx << ENABLE_LANE_TX_SHIFT 9111 | tx_polarity_inversion << TX_POLARITY_INVERSION_SHIFT 9112 | rx_polarity_inversion << RX_POLARITY_INVERSION_SHIFT 9113 | max_rate << MAX_RATE_SHIFT; 9114 return load_8051_config(dd, TX_SETTINGS, GENERAL_CONFIG, frame); 9115 } 9116 9117 /* 9118 * Read an idle LCB message. 9119 * 9120 * Returns 0 on success, -EINVAL on error 9121 */ 9122 static int read_idle_message(struct hfi1_devdata *dd, u64 type, u64 *data_out) 9123 { 9124 int ret; 9125 9126 ret = do_8051_command(dd, HCMD_READ_LCB_IDLE_MSG, type, data_out); 9127 if (ret != HCMD_SUCCESS) { 9128 dd_dev_err(dd, "read idle message: type %d, err %d\n", 9129 (u32)type, ret); 9130 return -EINVAL; 9131 } 9132 dd_dev_info(dd, "%s: read idle message 0x%llx\n", __func__, *data_out); 9133 /* return only the payload as we already know the type */ 9134 *data_out >>= IDLE_PAYLOAD_SHIFT; 9135 return 0; 9136 } 9137 9138 /* 9139 * Read an idle SMA message. To be done in response to a notification from 9140 * the 8051. 9141 * 9142 * Returns 0 on success, -EINVAL on error 9143 */ 9144 static int read_idle_sma(struct hfi1_devdata *dd, u64 *data) 9145 { 9146 return read_idle_message(dd, (u64)IDLE_SMA << IDLE_MSG_TYPE_SHIFT, 9147 data); 9148 } 9149 9150 /* 9151 * Send an idle LCB message. 9152 * 9153 * Returns 0 on success, -EINVAL on error 9154 */ 9155 static int send_idle_message(struct hfi1_devdata *dd, u64 data) 9156 { 9157 int ret; 9158 9159 dd_dev_info(dd, "%s: sending idle message 0x%llx\n", __func__, data); 9160 ret = do_8051_command(dd, HCMD_SEND_LCB_IDLE_MSG, data, NULL); 9161 if (ret != HCMD_SUCCESS) { 9162 dd_dev_err(dd, "send idle message: data 0x%llx, err %d\n", 9163 data, ret); 9164 return -EINVAL; 9165 } 9166 return 0; 9167 } 9168 9169 /* 9170 * Send an idle SMA message. 9171 * 9172 * Returns 0 on success, -EINVAL on error 9173 */ 9174 int send_idle_sma(struct hfi1_devdata *dd, u64 message) 9175 { 9176 u64 data; 9177 9178 data = ((message & IDLE_PAYLOAD_MASK) << IDLE_PAYLOAD_SHIFT) | 9179 ((u64)IDLE_SMA << IDLE_MSG_TYPE_SHIFT); 9180 return send_idle_message(dd, data); 9181 } 9182 9183 /* 9184 * Initialize the LCB then do a quick link up. This may or may not be 9185 * in loopback. 9186 * 9187 * return 0 on success, -errno on error 9188 */ 9189 static int do_quick_linkup(struct hfi1_devdata *dd) 9190 { 9191 int ret; 9192 9193 lcb_shutdown(dd, 0); 9194 9195 if (loopback) { 9196 /* LCB_CFG_LOOPBACK.VAL = 2 */ 9197 /* LCB_CFG_LANE_WIDTH.VAL = 0 */ 9198 write_csr(dd, DC_LCB_CFG_LOOPBACK, 9199 IB_PACKET_TYPE << DC_LCB_CFG_LOOPBACK_VAL_SHIFT); 9200 write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0); 9201 } 9202 9203 /* start the LCBs */ 9204 /* LCB_CFG_TX_FIFOS_RESET.VAL = 0 */ 9205 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0); 9206 9207 /* simulator only loopback steps */ 9208 if (loopback && dd->icode == ICODE_FUNCTIONAL_SIMULATOR) { 9209 /* LCB_CFG_RUN.EN = 1 */ 9210 write_csr(dd, DC_LCB_CFG_RUN, 9211 1ull << DC_LCB_CFG_RUN_EN_SHIFT); 9212 9213 ret = wait_link_transfer_active(dd, 10); 9214 if (ret) 9215 return ret; 9216 9217 write_csr(dd, DC_LCB_CFG_ALLOW_LINK_UP, 9218 1ull << DC_LCB_CFG_ALLOW_LINK_UP_VAL_SHIFT); 9219 } 9220 9221 if (!loopback) { 9222 /* 9223 * When doing quick linkup and not in loopback, both 9224 * sides must be done with LCB set-up before either 9225 * starts the quick linkup. Put a delay here so that 9226 * both sides can be started and have a chance to be 9227 * done with LCB set up before resuming. 9228 */ 9229 dd_dev_err(dd, 9230 "Pausing for peer to be finished with LCB set up\n"); 9231 msleep(5000); 9232 dd_dev_err(dd, "Continuing with quick linkup\n"); 9233 } 9234 9235 write_csr(dd, DC_LCB_ERR_EN, 0); /* mask LCB errors */ 9236 set_8051_lcb_access(dd); 9237 9238 /* 9239 * State "quick" LinkUp request sets the physical link state to 9240 * LinkUp without a verify capability sequence. 9241 * This state is in simulator v37 and later. 9242 */ 9243 ret = set_physical_link_state(dd, PLS_QUICK_LINKUP); 9244 if (ret != HCMD_SUCCESS) { 9245 dd_dev_err(dd, 9246 "%s: set physical link state to quick LinkUp failed with return %d\n", 9247 __func__, ret); 9248 9249 set_host_lcb_access(dd); 9250 write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */ 9251 9252 if (ret >= 0) 9253 ret = -EINVAL; 9254 return ret; 9255 } 9256 9257 return 0; /* success */ 9258 } 9259 9260 /* 9261 * Do all special steps to set up loopback. 9262 */ 9263 static int init_loopback(struct hfi1_devdata *dd) 9264 { 9265 dd_dev_info(dd, "Entering loopback mode\n"); 9266 9267 /* all loopbacks should disable self GUID check */ 9268 write_csr(dd, DC_DC8051_CFG_MODE, 9269 (read_csr(dd, DC_DC8051_CFG_MODE) | DISABLE_SELF_GUID_CHECK)); 9270 9271 /* 9272 * The simulator has only one loopback option - LCB. Switch 9273 * to that option, which includes quick link up. 9274 * 9275 * Accept all valid loopback values. 9276 */ 9277 if ((dd->icode == ICODE_FUNCTIONAL_SIMULATOR) && 9278 (loopback == LOOPBACK_SERDES || loopback == LOOPBACK_LCB || 9279 loopback == LOOPBACK_CABLE)) { 9280 loopback = LOOPBACK_LCB; 9281 quick_linkup = 1; 9282 return 0; 9283 } 9284 9285 /* 9286 * SerDes loopback init sequence is handled in set_local_link_attributes 9287 */ 9288 if (loopback == LOOPBACK_SERDES) 9289 return 0; 9290 9291 /* LCB loopback - handled at poll time */ 9292 if (loopback == LOOPBACK_LCB) { 9293 quick_linkup = 1; /* LCB is always quick linkup */ 9294 9295 /* not supported in emulation due to emulation RTL changes */ 9296 if (dd->icode == ICODE_FPGA_EMULATION) { 9297 dd_dev_err(dd, 9298 "LCB loopback not supported in emulation\n"); 9299 return -EINVAL; 9300 } 9301 return 0; 9302 } 9303 9304 /* external cable loopback requires no extra steps */ 9305 if (loopback == LOOPBACK_CABLE) 9306 return 0; 9307 9308 dd_dev_err(dd, "Invalid loopback mode %d\n", loopback); 9309 return -EINVAL; 9310 } 9311 9312 /* 9313 * Translate from the OPA_LINK_WIDTH handed to us by the FM to bits 9314 * used in the Verify Capability link width attribute. 9315 */ 9316 static u16 opa_to_vc_link_widths(u16 opa_widths) 9317 { 9318 int i; 9319 u16 result = 0; 9320 9321 static const struct link_bits { 9322 u16 from; 9323 u16 to; 9324 } opa_link_xlate[] = { 9325 { OPA_LINK_WIDTH_1X, 1 << (1 - 1) }, 9326 { OPA_LINK_WIDTH_2X, 1 << (2 - 1) }, 9327 { OPA_LINK_WIDTH_3X, 1 << (3 - 1) }, 9328 { OPA_LINK_WIDTH_4X, 1 << (4 - 1) }, 9329 }; 9330 9331 for (i = 0; i < ARRAY_SIZE(opa_link_xlate); i++) { 9332 if (opa_widths & opa_link_xlate[i].from) 9333 result |= opa_link_xlate[i].to; 9334 } 9335 return result; 9336 } 9337 9338 /* 9339 * Set link attributes before moving to polling. 9340 */ 9341 static int set_local_link_attributes(struct hfi1_pportdata *ppd) 9342 { 9343 struct hfi1_devdata *dd = ppd->dd; 9344 u8 enable_lane_tx; 9345 u8 tx_polarity_inversion; 9346 u8 rx_polarity_inversion; 9347 int ret; 9348 u32 misc_bits = 0; 9349 /* reset our fabric serdes to clear any lingering problems */ 9350 fabric_serdes_reset(dd); 9351 9352 /* set the local tx rate - need to read-modify-write */ 9353 ret = read_tx_settings(dd, &enable_lane_tx, &tx_polarity_inversion, 9354 &rx_polarity_inversion, &ppd->local_tx_rate); 9355 if (ret) 9356 goto set_local_link_attributes_fail; 9357 9358 if (dd->dc8051_ver < dc8051_ver(0, 20, 0)) { 9359 /* set the tx rate to the fastest enabled */ 9360 if (ppd->link_speed_enabled & OPA_LINK_SPEED_25G) 9361 ppd->local_tx_rate = 1; 9362 else 9363 ppd->local_tx_rate = 0; 9364 } else { 9365 /* set the tx rate to all enabled */ 9366 ppd->local_tx_rate = 0; 9367 if (ppd->link_speed_enabled & OPA_LINK_SPEED_25G) 9368 ppd->local_tx_rate |= 2; 9369 if (ppd->link_speed_enabled & OPA_LINK_SPEED_12_5G) 9370 ppd->local_tx_rate |= 1; 9371 } 9372 9373 enable_lane_tx = 0xF; /* enable all four lanes */ 9374 ret = write_tx_settings(dd, enable_lane_tx, tx_polarity_inversion, 9375 rx_polarity_inversion, ppd->local_tx_rate); 9376 if (ret != HCMD_SUCCESS) 9377 goto set_local_link_attributes_fail; 9378 9379 ret = write_host_interface_version(dd, HOST_INTERFACE_VERSION); 9380 if (ret != HCMD_SUCCESS) { 9381 dd_dev_err(dd, 9382 "Failed to set host interface version, return 0x%x\n", 9383 ret); 9384 goto set_local_link_attributes_fail; 9385 } 9386 9387 /* 9388 * DC supports continuous updates. 9389 */ 9390 ret = write_vc_local_phy(dd, 9391 0 /* no power management */, 9392 1 /* continuous updates */); 9393 if (ret != HCMD_SUCCESS) 9394 goto set_local_link_attributes_fail; 9395 9396 /* z=1 in the next call: AU of 0 is not supported by the hardware */ 9397 ret = write_vc_local_fabric(dd, dd->vau, 1, dd->vcu, dd->vl15_init, 9398 ppd->port_crc_mode_enabled); 9399 if (ret != HCMD_SUCCESS) 9400 goto set_local_link_attributes_fail; 9401 9402 /* 9403 * SerDes loopback init sequence requires 9404 * setting bit 0 of MISC_CONFIG_BITS 9405 */ 9406 if (loopback == LOOPBACK_SERDES) 9407 misc_bits |= 1 << LOOPBACK_SERDES_CONFIG_BIT_MASK_SHIFT; 9408 9409 /* 9410 * An external device configuration request is used to reset the LCB 9411 * to retry to obtain operational lanes when the first attempt is 9412 * unsuccesful. 9413 */ 9414 if (dd->dc8051_ver >= dc8051_ver(1, 25, 0)) 9415 misc_bits |= 1 << EXT_CFG_LCB_RESET_SUPPORTED_SHIFT; 9416 9417 ret = write_vc_local_link_mode(dd, misc_bits, 0, 9418 opa_to_vc_link_widths( 9419 ppd->link_width_enabled)); 9420 if (ret != HCMD_SUCCESS) 9421 goto set_local_link_attributes_fail; 9422 9423 /* let peer know who we are */ 9424 ret = write_local_device_id(dd, dd->pcidev->device, dd->minrev); 9425 if (ret == HCMD_SUCCESS) 9426 return 0; 9427 9428 set_local_link_attributes_fail: 9429 dd_dev_err(dd, 9430 "Failed to set local link attributes, return 0x%x\n", 9431 ret); 9432 return ret; 9433 } 9434 9435 /* 9436 * Call this to start the link. 9437 * Do not do anything if the link is disabled. 9438 * Returns 0 if link is disabled, moved to polling, or the driver is not ready. 9439 */ 9440 int start_link(struct hfi1_pportdata *ppd) 9441 { 9442 /* 9443 * Tune the SerDes to a ballpark setting for optimal signal and bit 9444 * error rate. Needs to be done before starting the link. 9445 */ 9446 tune_serdes(ppd); 9447 9448 if (!ppd->driver_link_ready) { 9449 dd_dev_info(ppd->dd, 9450 "%s: stopping link start because driver is not ready\n", 9451 __func__); 9452 return 0; 9453 } 9454 9455 /* 9456 * FULL_MGMT_P_KEY is cleared from the pkey table, so that the 9457 * pkey table can be configured properly if the HFI unit is connected 9458 * to switch port with MgmtAllowed=NO 9459 */ 9460 clear_full_mgmt_pkey(ppd); 9461 9462 return set_link_state(ppd, HLS_DN_POLL); 9463 } 9464 9465 static void wait_for_qsfp_init(struct hfi1_pportdata *ppd) 9466 { 9467 struct hfi1_devdata *dd = ppd->dd; 9468 u64 mask; 9469 unsigned long timeout; 9470 9471 /* 9472 * Some QSFP cables have a quirk that asserts the IntN line as a side 9473 * effect of power up on plug-in. We ignore this false positive 9474 * interrupt until the module has finished powering up by waiting for 9475 * a minimum timeout of the module inrush initialization time of 9476 * 500 ms (SFF 8679 Table 5-6) to ensure the voltage rails in the 9477 * module have stabilized. 9478 */ 9479 msleep(500); 9480 9481 /* 9482 * Check for QSFP interrupt for t_init (SFF 8679 Table 8-1) 9483 */ 9484 timeout = jiffies + msecs_to_jiffies(2000); 9485 while (1) { 9486 mask = read_csr(dd, dd->hfi1_id ? 9487 ASIC_QSFP2_IN : ASIC_QSFP1_IN); 9488 if (!(mask & QSFP_HFI0_INT_N)) 9489 break; 9490 if (time_after(jiffies, timeout)) { 9491 dd_dev_info(dd, "%s: No IntN detected, reset complete\n", 9492 __func__); 9493 break; 9494 } 9495 udelay(2); 9496 } 9497 } 9498 9499 static void set_qsfp_int_n(struct hfi1_pportdata *ppd, u8 enable) 9500 { 9501 struct hfi1_devdata *dd = ppd->dd; 9502 u64 mask; 9503 9504 mask = read_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK); 9505 if (enable) { 9506 /* 9507 * Clear the status register to avoid an immediate interrupt 9508 * when we re-enable the IntN pin 9509 */ 9510 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_CLEAR : ASIC_QSFP1_CLEAR, 9511 QSFP_HFI0_INT_N); 9512 mask |= (u64)QSFP_HFI0_INT_N; 9513 } else { 9514 mask &= ~(u64)QSFP_HFI0_INT_N; 9515 } 9516 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK, mask); 9517 } 9518 9519 int reset_qsfp(struct hfi1_pportdata *ppd) 9520 { 9521 struct hfi1_devdata *dd = ppd->dd; 9522 u64 mask, qsfp_mask; 9523 9524 /* Disable INT_N from triggering QSFP interrupts */ 9525 set_qsfp_int_n(ppd, 0); 9526 9527 /* Reset the QSFP */ 9528 mask = (u64)QSFP_HFI0_RESET_N; 9529 9530 qsfp_mask = read_csr(dd, 9531 dd->hfi1_id ? ASIC_QSFP2_OUT : ASIC_QSFP1_OUT); 9532 qsfp_mask &= ~mask; 9533 write_csr(dd, 9534 dd->hfi1_id ? ASIC_QSFP2_OUT : ASIC_QSFP1_OUT, qsfp_mask); 9535 9536 udelay(10); 9537 9538 qsfp_mask |= mask; 9539 write_csr(dd, 9540 dd->hfi1_id ? ASIC_QSFP2_OUT : ASIC_QSFP1_OUT, qsfp_mask); 9541 9542 wait_for_qsfp_init(ppd); 9543 9544 /* 9545 * Allow INT_N to trigger the QSFP interrupt to watch 9546 * for alarms and warnings 9547 */ 9548 set_qsfp_int_n(ppd, 1); 9549 9550 /* 9551 * After the reset, AOC transmitters are enabled by default. They need 9552 * to be turned off to complete the QSFP setup before they can be 9553 * enabled again. 9554 */ 9555 return set_qsfp_tx(ppd, 0); 9556 } 9557 9558 static int handle_qsfp_error_conditions(struct hfi1_pportdata *ppd, 9559 u8 *qsfp_interrupt_status) 9560 { 9561 struct hfi1_devdata *dd = ppd->dd; 9562 9563 if ((qsfp_interrupt_status[0] & QSFP_HIGH_TEMP_ALARM) || 9564 (qsfp_interrupt_status[0] & QSFP_HIGH_TEMP_WARNING)) 9565 dd_dev_err(dd, "%s: QSFP cable temperature too high\n", 9566 __func__); 9567 9568 if ((qsfp_interrupt_status[0] & QSFP_LOW_TEMP_ALARM) || 9569 (qsfp_interrupt_status[0] & QSFP_LOW_TEMP_WARNING)) 9570 dd_dev_err(dd, "%s: QSFP cable temperature too low\n", 9571 __func__); 9572 9573 /* 9574 * The remaining alarms/warnings don't matter if the link is down. 9575 */ 9576 if (ppd->host_link_state & HLS_DOWN) 9577 return 0; 9578 9579 if ((qsfp_interrupt_status[1] & QSFP_HIGH_VCC_ALARM) || 9580 (qsfp_interrupt_status[1] & QSFP_HIGH_VCC_WARNING)) 9581 dd_dev_err(dd, "%s: QSFP supply voltage too high\n", 9582 __func__); 9583 9584 if ((qsfp_interrupt_status[1] & QSFP_LOW_VCC_ALARM) || 9585 (qsfp_interrupt_status[1] & QSFP_LOW_VCC_WARNING)) 9586 dd_dev_err(dd, "%s: QSFP supply voltage too low\n", 9587 __func__); 9588 9589 /* Byte 2 is vendor specific */ 9590 9591 if ((qsfp_interrupt_status[3] & QSFP_HIGH_POWER_ALARM) || 9592 (qsfp_interrupt_status[3] & QSFP_HIGH_POWER_WARNING)) 9593 dd_dev_err(dd, "%s: Cable RX channel 1/2 power too high\n", 9594 __func__); 9595 9596 if ((qsfp_interrupt_status[3] & QSFP_LOW_POWER_ALARM) || 9597 (qsfp_interrupt_status[3] & QSFP_LOW_POWER_WARNING)) 9598 dd_dev_err(dd, "%s: Cable RX channel 1/2 power too low\n", 9599 __func__); 9600 9601 if ((qsfp_interrupt_status[4] & QSFP_HIGH_POWER_ALARM) || 9602 (qsfp_interrupt_status[4] & QSFP_HIGH_POWER_WARNING)) 9603 dd_dev_err(dd, "%s: Cable RX channel 3/4 power too high\n", 9604 __func__); 9605 9606 if ((qsfp_interrupt_status[4] & QSFP_LOW_POWER_ALARM) || 9607 (qsfp_interrupt_status[4] & QSFP_LOW_POWER_WARNING)) 9608 dd_dev_err(dd, "%s: Cable RX channel 3/4 power too low\n", 9609 __func__); 9610 9611 if ((qsfp_interrupt_status[5] & QSFP_HIGH_BIAS_ALARM) || 9612 (qsfp_interrupt_status[5] & QSFP_HIGH_BIAS_WARNING)) 9613 dd_dev_err(dd, "%s: Cable TX channel 1/2 bias too high\n", 9614 __func__); 9615 9616 if ((qsfp_interrupt_status[5] & QSFP_LOW_BIAS_ALARM) || 9617 (qsfp_interrupt_status[5] & QSFP_LOW_BIAS_WARNING)) 9618 dd_dev_err(dd, "%s: Cable TX channel 1/2 bias too low\n", 9619 __func__); 9620 9621 if ((qsfp_interrupt_status[6] & QSFP_HIGH_BIAS_ALARM) || 9622 (qsfp_interrupt_status[6] & QSFP_HIGH_BIAS_WARNING)) 9623 dd_dev_err(dd, "%s: Cable TX channel 3/4 bias too high\n", 9624 __func__); 9625 9626 if ((qsfp_interrupt_status[6] & QSFP_LOW_BIAS_ALARM) || 9627 (qsfp_interrupt_status[6] & QSFP_LOW_BIAS_WARNING)) 9628 dd_dev_err(dd, "%s: Cable TX channel 3/4 bias too low\n", 9629 __func__); 9630 9631 if ((qsfp_interrupt_status[7] & QSFP_HIGH_POWER_ALARM) || 9632 (qsfp_interrupt_status[7] & QSFP_HIGH_POWER_WARNING)) 9633 dd_dev_err(dd, "%s: Cable TX channel 1/2 power too high\n", 9634 __func__); 9635 9636 if ((qsfp_interrupt_status[7] & QSFP_LOW_POWER_ALARM) || 9637 (qsfp_interrupt_status[7] & QSFP_LOW_POWER_WARNING)) 9638 dd_dev_err(dd, "%s: Cable TX channel 1/2 power too low\n", 9639 __func__); 9640 9641 if ((qsfp_interrupt_status[8] & QSFP_HIGH_POWER_ALARM) || 9642 (qsfp_interrupt_status[8] & QSFP_HIGH_POWER_WARNING)) 9643 dd_dev_err(dd, "%s: Cable TX channel 3/4 power too high\n", 9644 __func__); 9645 9646 if ((qsfp_interrupt_status[8] & QSFP_LOW_POWER_ALARM) || 9647 (qsfp_interrupt_status[8] & QSFP_LOW_POWER_WARNING)) 9648 dd_dev_err(dd, "%s: Cable TX channel 3/4 power too low\n", 9649 __func__); 9650 9651 /* Bytes 9-10 and 11-12 are reserved */ 9652 /* Bytes 13-15 are vendor specific */ 9653 9654 return 0; 9655 } 9656 9657 /* This routine will only be scheduled if the QSFP module present is asserted */ 9658 void qsfp_event(struct work_struct *work) 9659 { 9660 struct qsfp_data *qd; 9661 struct hfi1_pportdata *ppd; 9662 struct hfi1_devdata *dd; 9663 9664 qd = container_of(work, struct qsfp_data, qsfp_work); 9665 ppd = qd->ppd; 9666 dd = ppd->dd; 9667 9668 /* Sanity check */ 9669 if (!qsfp_mod_present(ppd)) 9670 return; 9671 9672 if (ppd->host_link_state == HLS_DN_DISABLE) { 9673 dd_dev_info(ppd->dd, 9674 "%s: stopping link start because link is disabled\n", 9675 __func__); 9676 return; 9677 } 9678 9679 /* 9680 * Turn DC back on after cable has been re-inserted. Up until 9681 * now, the DC has been in reset to save power. 9682 */ 9683 dc_start(dd); 9684 9685 if (qd->cache_refresh_required) { 9686 set_qsfp_int_n(ppd, 0); 9687 9688 wait_for_qsfp_init(ppd); 9689 9690 /* 9691 * Allow INT_N to trigger the QSFP interrupt to watch 9692 * for alarms and warnings 9693 */ 9694 set_qsfp_int_n(ppd, 1); 9695 9696 start_link(ppd); 9697 } 9698 9699 if (qd->check_interrupt_flags) { 9700 u8 qsfp_interrupt_status[16] = {0,}; 9701 9702 if (one_qsfp_read(ppd, dd->hfi1_id, 6, 9703 &qsfp_interrupt_status[0], 16) != 16) { 9704 dd_dev_info(dd, 9705 "%s: Failed to read status of QSFP module\n", 9706 __func__); 9707 } else { 9708 unsigned long flags; 9709 9710 handle_qsfp_error_conditions( 9711 ppd, qsfp_interrupt_status); 9712 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 9713 ppd->qsfp_info.check_interrupt_flags = 0; 9714 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, 9715 flags); 9716 } 9717 } 9718 } 9719 9720 void init_qsfp_int(struct hfi1_devdata *dd) 9721 { 9722 struct hfi1_pportdata *ppd = dd->pport; 9723 u64 qsfp_mask; 9724 9725 qsfp_mask = (u64)(QSFP_HFI0_INT_N | QSFP_HFI0_MODPRST_N); 9726 /* Clear current status to avoid spurious interrupts */ 9727 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_CLEAR : ASIC_QSFP1_CLEAR, 9728 qsfp_mask); 9729 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK, 9730 qsfp_mask); 9731 9732 set_qsfp_int_n(ppd, 0); 9733 9734 /* Handle active low nature of INT_N and MODPRST_N pins */ 9735 if (qsfp_mod_present(ppd)) 9736 qsfp_mask &= ~(u64)QSFP_HFI0_MODPRST_N; 9737 write_csr(dd, 9738 dd->hfi1_id ? ASIC_QSFP2_INVERT : ASIC_QSFP1_INVERT, 9739 qsfp_mask); 9740 9741 /* Enable the appropriate QSFP IRQ source */ 9742 if (!dd->hfi1_id) 9743 set_intr_bits(dd, QSFP1_INT, QSFP1_INT, true); 9744 else 9745 set_intr_bits(dd, QSFP2_INT, QSFP2_INT, true); 9746 } 9747 9748 /* 9749 * Do a one-time initialize of the LCB block. 9750 */ 9751 static void init_lcb(struct hfi1_devdata *dd) 9752 { 9753 /* simulator does not correctly handle LCB cclk loopback, skip */ 9754 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) 9755 return; 9756 9757 /* the DC has been reset earlier in the driver load */ 9758 9759 /* set LCB for cclk loopback on the port */ 9760 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x01); 9761 write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0x00); 9762 write_csr(dd, DC_LCB_CFG_REINIT_AS_SLAVE, 0x00); 9763 write_csr(dd, DC_LCB_CFG_CNT_FOR_SKIP_STALL, 0x110); 9764 write_csr(dd, DC_LCB_CFG_CLK_CNTR, 0x08); 9765 write_csr(dd, DC_LCB_CFG_LOOPBACK, 0x02); 9766 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x00); 9767 } 9768 9769 /* 9770 * Perform a test read on the QSFP. Return 0 on success, -ERRNO 9771 * on error. 9772 */ 9773 static int test_qsfp_read(struct hfi1_pportdata *ppd) 9774 { 9775 int ret; 9776 u8 status; 9777 9778 /* 9779 * Report success if not a QSFP or, if it is a QSFP, but the cable is 9780 * not present 9781 */ 9782 if (ppd->port_type != PORT_TYPE_QSFP || !qsfp_mod_present(ppd)) 9783 return 0; 9784 9785 /* read byte 2, the status byte */ 9786 ret = one_qsfp_read(ppd, ppd->dd->hfi1_id, 2, &status, 1); 9787 if (ret < 0) 9788 return ret; 9789 if (ret != 1) 9790 return -EIO; 9791 9792 return 0; /* success */ 9793 } 9794 9795 /* 9796 * Values for QSFP retry. 9797 * 9798 * Give up after 10s (20 x 500ms). The overall timeout was empirically 9799 * arrived at from experience on a large cluster. 9800 */ 9801 #define MAX_QSFP_RETRIES 20 9802 #define QSFP_RETRY_WAIT 500 /* msec */ 9803 9804 /* 9805 * Try a QSFP read. If it fails, schedule a retry for later. 9806 * Called on first link activation after driver load. 9807 */ 9808 static void try_start_link(struct hfi1_pportdata *ppd) 9809 { 9810 if (test_qsfp_read(ppd)) { 9811 /* read failed */ 9812 if (ppd->qsfp_retry_count >= MAX_QSFP_RETRIES) { 9813 dd_dev_err(ppd->dd, "QSFP not responding, giving up\n"); 9814 return; 9815 } 9816 dd_dev_info(ppd->dd, 9817 "QSFP not responding, waiting and retrying %d\n", 9818 (int)ppd->qsfp_retry_count); 9819 ppd->qsfp_retry_count++; 9820 queue_delayed_work(ppd->link_wq, &ppd->start_link_work, 9821 msecs_to_jiffies(QSFP_RETRY_WAIT)); 9822 return; 9823 } 9824 ppd->qsfp_retry_count = 0; 9825 9826 start_link(ppd); 9827 } 9828 9829 /* 9830 * Workqueue function to start the link after a delay. 9831 */ 9832 void handle_start_link(struct work_struct *work) 9833 { 9834 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 9835 start_link_work.work); 9836 try_start_link(ppd); 9837 } 9838 9839 int bringup_serdes(struct hfi1_pportdata *ppd) 9840 { 9841 struct hfi1_devdata *dd = ppd->dd; 9842 u64 guid; 9843 int ret; 9844 9845 if (HFI1_CAP_IS_KSET(EXTENDED_PSN)) 9846 add_rcvctrl(dd, RCV_CTRL_RCV_EXTENDED_PSN_ENABLE_SMASK); 9847 9848 guid = ppd->guids[HFI1_PORT_GUID_INDEX]; 9849 if (!guid) { 9850 if (dd->base_guid) 9851 guid = dd->base_guid + ppd->port - 1; 9852 ppd->guids[HFI1_PORT_GUID_INDEX] = guid; 9853 } 9854 9855 /* Set linkinit_reason on power up per OPA spec */ 9856 ppd->linkinit_reason = OPA_LINKINIT_REASON_LINKUP; 9857 9858 /* one-time init of the LCB */ 9859 init_lcb(dd); 9860 9861 if (loopback) { 9862 ret = init_loopback(dd); 9863 if (ret < 0) 9864 return ret; 9865 } 9866 9867 get_port_type(ppd); 9868 if (ppd->port_type == PORT_TYPE_QSFP) { 9869 set_qsfp_int_n(ppd, 0); 9870 wait_for_qsfp_init(ppd); 9871 set_qsfp_int_n(ppd, 1); 9872 } 9873 9874 try_start_link(ppd); 9875 return 0; 9876 } 9877 9878 void hfi1_quiet_serdes(struct hfi1_pportdata *ppd) 9879 { 9880 struct hfi1_devdata *dd = ppd->dd; 9881 9882 /* 9883 * Shut down the link and keep it down. First turn off that the 9884 * driver wants to allow the link to be up (driver_link_ready). 9885 * Then make sure the link is not automatically restarted 9886 * (link_enabled). Cancel any pending restart. And finally 9887 * go offline. 9888 */ 9889 ppd->driver_link_ready = 0; 9890 ppd->link_enabled = 0; 9891 9892 ppd->qsfp_retry_count = MAX_QSFP_RETRIES; /* prevent more retries */ 9893 flush_delayed_work(&ppd->start_link_work); 9894 cancel_delayed_work_sync(&ppd->start_link_work); 9895 9896 ppd->offline_disabled_reason = 9897 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_REBOOT); 9898 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_REBOOT, 0, 9899 OPA_LINKDOWN_REASON_REBOOT); 9900 set_link_state(ppd, HLS_DN_OFFLINE); 9901 9902 /* disable the port */ 9903 clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 9904 cancel_work_sync(&ppd->freeze_work); 9905 } 9906 9907 static inline int init_cpu_counters(struct hfi1_devdata *dd) 9908 { 9909 struct hfi1_pportdata *ppd; 9910 int i; 9911 9912 ppd = (struct hfi1_pportdata *)(dd + 1); 9913 for (i = 0; i < dd->num_pports; i++, ppd++) { 9914 ppd->ibport_data.rvp.rc_acks = NULL; 9915 ppd->ibport_data.rvp.rc_qacks = NULL; 9916 ppd->ibport_data.rvp.rc_acks = alloc_percpu(u64); 9917 ppd->ibport_data.rvp.rc_qacks = alloc_percpu(u64); 9918 ppd->ibport_data.rvp.rc_delayed_comp = alloc_percpu(u64); 9919 if (!ppd->ibport_data.rvp.rc_acks || 9920 !ppd->ibport_data.rvp.rc_delayed_comp || 9921 !ppd->ibport_data.rvp.rc_qacks) 9922 return -ENOMEM; 9923 } 9924 9925 return 0; 9926 } 9927 9928 /* 9929 * index is the index into the receive array 9930 */ 9931 void hfi1_put_tid(struct hfi1_devdata *dd, u32 index, 9932 u32 type, unsigned long pa, u16 order) 9933 { 9934 u64 reg; 9935 9936 if (!(dd->flags & HFI1_PRESENT)) 9937 goto done; 9938 9939 if (type == PT_INVALID || type == PT_INVALID_FLUSH) { 9940 pa = 0; 9941 order = 0; 9942 } else if (type > PT_INVALID) { 9943 dd_dev_err(dd, 9944 "unexpected receive array type %u for index %u, not handled\n", 9945 type, index); 9946 goto done; 9947 } 9948 trace_hfi1_put_tid(dd, index, type, pa, order); 9949 9950 #define RT_ADDR_SHIFT 12 /* 4KB kernel address boundary */ 9951 reg = RCV_ARRAY_RT_WRITE_ENABLE_SMASK 9952 | (u64)order << RCV_ARRAY_RT_BUF_SIZE_SHIFT 9953 | ((pa >> RT_ADDR_SHIFT) & RCV_ARRAY_RT_ADDR_MASK) 9954 << RCV_ARRAY_RT_ADDR_SHIFT; 9955 trace_hfi1_write_rcvarray(dd->rcvarray_wc + (index * 8), reg); 9956 writeq(reg, dd->rcvarray_wc + (index * 8)); 9957 9958 if (type == PT_EAGER || type == PT_INVALID_FLUSH || (index & 3) == 3) 9959 /* 9960 * Eager entries are written and flushed 9961 * 9962 * Expected entries are flushed every 4 writes 9963 */ 9964 flush_wc(); 9965 done: 9966 return; 9967 } 9968 9969 void hfi1_clear_tids(struct hfi1_ctxtdata *rcd) 9970 { 9971 struct hfi1_devdata *dd = rcd->dd; 9972 u32 i; 9973 9974 /* this could be optimized */ 9975 for (i = rcd->eager_base; i < rcd->eager_base + 9976 rcd->egrbufs.alloced; i++) 9977 hfi1_put_tid(dd, i, PT_INVALID, 0, 0); 9978 9979 for (i = rcd->expected_base; 9980 i < rcd->expected_base + rcd->expected_count; i++) 9981 hfi1_put_tid(dd, i, PT_INVALID, 0, 0); 9982 } 9983 9984 static const char * const ib_cfg_name_strings[] = { 9985 "HFI1_IB_CFG_LIDLMC", 9986 "HFI1_IB_CFG_LWID_DG_ENB", 9987 "HFI1_IB_CFG_LWID_ENB", 9988 "HFI1_IB_CFG_LWID", 9989 "HFI1_IB_CFG_SPD_ENB", 9990 "HFI1_IB_CFG_SPD", 9991 "HFI1_IB_CFG_RXPOL_ENB", 9992 "HFI1_IB_CFG_LREV_ENB", 9993 "HFI1_IB_CFG_LINKLATENCY", 9994 "HFI1_IB_CFG_HRTBT", 9995 "HFI1_IB_CFG_OP_VLS", 9996 "HFI1_IB_CFG_VL_HIGH_CAP", 9997 "HFI1_IB_CFG_VL_LOW_CAP", 9998 "HFI1_IB_CFG_OVERRUN_THRESH", 9999 "HFI1_IB_CFG_PHYERR_THRESH", 10000 "HFI1_IB_CFG_LINKDEFAULT", 10001 "HFI1_IB_CFG_PKEYS", 10002 "HFI1_IB_CFG_MTU", 10003 "HFI1_IB_CFG_LSTATE", 10004 "HFI1_IB_CFG_VL_HIGH_LIMIT", 10005 "HFI1_IB_CFG_PMA_TICKS", 10006 "HFI1_IB_CFG_PORT" 10007 }; 10008 10009 static const char *ib_cfg_name(int which) 10010 { 10011 if (which < 0 || which >= ARRAY_SIZE(ib_cfg_name_strings)) 10012 return "invalid"; 10013 return ib_cfg_name_strings[which]; 10014 } 10015 10016 int hfi1_get_ib_cfg(struct hfi1_pportdata *ppd, int which) 10017 { 10018 struct hfi1_devdata *dd = ppd->dd; 10019 int val = 0; 10020 10021 switch (which) { 10022 case HFI1_IB_CFG_LWID_ENB: /* allowed Link-width */ 10023 val = ppd->link_width_enabled; 10024 break; 10025 case HFI1_IB_CFG_LWID: /* currently active Link-width */ 10026 val = ppd->link_width_active; 10027 break; 10028 case HFI1_IB_CFG_SPD_ENB: /* allowed Link speeds */ 10029 val = ppd->link_speed_enabled; 10030 break; 10031 case HFI1_IB_CFG_SPD: /* current Link speed */ 10032 val = ppd->link_speed_active; 10033 break; 10034 10035 case HFI1_IB_CFG_RXPOL_ENB: /* Auto-RX-polarity enable */ 10036 case HFI1_IB_CFG_LREV_ENB: /* Auto-Lane-reversal enable */ 10037 case HFI1_IB_CFG_LINKLATENCY: 10038 goto unimplemented; 10039 10040 case HFI1_IB_CFG_OP_VLS: 10041 val = ppd->actual_vls_operational; 10042 break; 10043 case HFI1_IB_CFG_VL_HIGH_CAP: /* VL arb high priority table size */ 10044 val = VL_ARB_HIGH_PRIO_TABLE_SIZE; 10045 break; 10046 case HFI1_IB_CFG_VL_LOW_CAP: /* VL arb low priority table size */ 10047 val = VL_ARB_LOW_PRIO_TABLE_SIZE; 10048 break; 10049 case HFI1_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ 10050 val = ppd->overrun_threshold; 10051 break; 10052 case HFI1_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ 10053 val = ppd->phy_error_threshold; 10054 break; 10055 case HFI1_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ 10056 val = HLS_DEFAULT; 10057 break; 10058 10059 case HFI1_IB_CFG_HRTBT: /* Heartbeat off/enable/auto */ 10060 case HFI1_IB_CFG_PMA_TICKS: 10061 default: 10062 unimplemented: 10063 if (HFI1_CAP_IS_KSET(PRINT_UNIMPL)) 10064 dd_dev_info( 10065 dd, 10066 "%s: which %s: not implemented\n", 10067 __func__, 10068 ib_cfg_name(which)); 10069 break; 10070 } 10071 10072 return val; 10073 } 10074 10075 /* 10076 * The largest MAD packet size. 10077 */ 10078 #define MAX_MAD_PACKET 2048 10079 10080 /* 10081 * Return the maximum header bytes that can go on the _wire_ 10082 * for this device. This count includes the ICRC which is 10083 * not part of the packet held in memory but it is appended 10084 * by the HW. 10085 * This is dependent on the device's receive header entry size. 10086 * HFI allows this to be set per-receive context, but the 10087 * driver presently enforces a global value. 10088 */ 10089 u32 lrh_max_header_bytes(struct hfi1_devdata *dd) 10090 { 10091 /* 10092 * The maximum non-payload (MTU) bytes in LRH.PktLen are 10093 * the Receive Header Entry Size minus the PBC (or RHF) size 10094 * plus one DW for the ICRC appended by HW. 10095 * 10096 * dd->rcd[0].rcvhdrqentsize is in DW. 10097 * We use rcd[0] as all context will have the same value. Also, 10098 * the first kernel context would have been allocated by now so 10099 * we are guaranteed a valid value. 10100 */ 10101 return (get_hdrqentsize(dd->rcd[0]) - 2/*PBC/RHF*/ + 1/*ICRC*/) << 2; 10102 } 10103 10104 /* 10105 * Set Send Length 10106 * @ppd: per port data 10107 * 10108 * Set the MTU by limiting how many DWs may be sent. The SendLenCheck* 10109 * registers compare against LRH.PktLen, so use the max bytes included 10110 * in the LRH. 10111 * 10112 * This routine changes all VL values except VL15, which it maintains at 10113 * the same value. 10114 */ 10115 static void set_send_length(struct hfi1_pportdata *ppd) 10116 { 10117 struct hfi1_devdata *dd = ppd->dd; 10118 u32 max_hb = lrh_max_header_bytes(dd), dcmtu; 10119 u32 maxvlmtu = dd->vld[15].mtu; 10120 u64 len1 = 0, len2 = (((dd->vld[15].mtu + max_hb) >> 2) 10121 & SEND_LEN_CHECK1_LEN_VL15_MASK) << 10122 SEND_LEN_CHECK1_LEN_VL15_SHIFT; 10123 int i, j; 10124 u32 thres; 10125 10126 for (i = 0; i < ppd->vls_supported; i++) { 10127 if (dd->vld[i].mtu > maxvlmtu) 10128 maxvlmtu = dd->vld[i].mtu; 10129 if (i <= 3) 10130 len1 |= (((dd->vld[i].mtu + max_hb) >> 2) 10131 & SEND_LEN_CHECK0_LEN_VL0_MASK) << 10132 ((i % 4) * SEND_LEN_CHECK0_LEN_VL1_SHIFT); 10133 else 10134 len2 |= (((dd->vld[i].mtu + max_hb) >> 2) 10135 & SEND_LEN_CHECK1_LEN_VL4_MASK) << 10136 ((i % 4) * SEND_LEN_CHECK1_LEN_VL5_SHIFT); 10137 } 10138 write_csr(dd, SEND_LEN_CHECK0, len1); 10139 write_csr(dd, SEND_LEN_CHECK1, len2); 10140 /* adjust kernel credit return thresholds based on new MTUs */ 10141 /* all kernel receive contexts have the same hdrqentsize */ 10142 for (i = 0; i < ppd->vls_supported; i++) { 10143 thres = min(sc_percent_to_threshold(dd->vld[i].sc, 50), 10144 sc_mtu_to_threshold(dd->vld[i].sc, 10145 dd->vld[i].mtu, 10146 get_hdrqentsize(dd->rcd[0]))); 10147 for (j = 0; j < INIT_SC_PER_VL; j++) 10148 sc_set_cr_threshold( 10149 pio_select_send_context_vl(dd, j, i), 10150 thres); 10151 } 10152 thres = min(sc_percent_to_threshold(dd->vld[15].sc, 50), 10153 sc_mtu_to_threshold(dd->vld[15].sc, 10154 dd->vld[15].mtu, 10155 dd->rcd[0]->rcvhdrqentsize)); 10156 sc_set_cr_threshold(dd->vld[15].sc, thres); 10157 10158 /* Adjust maximum MTU for the port in DC */ 10159 dcmtu = maxvlmtu == 10240 ? DCC_CFG_PORT_MTU_CAP_10240 : 10160 (ilog2(maxvlmtu >> 8) + 1); 10161 len1 = read_csr(ppd->dd, DCC_CFG_PORT_CONFIG); 10162 len1 &= ~DCC_CFG_PORT_CONFIG_MTU_CAP_SMASK; 10163 len1 |= ((u64)dcmtu & DCC_CFG_PORT_CONFIG_MTU_CAP_MASK) << 10164 DCC_CFG_PORT_CONFIG_MTU_CAP_SHIFT; 10165 write_csr(ppd->dd, DCC_CFG_PORT_CONFIG, len1); 10166 } 10167 10168 static void set_lidlmc(struct hfi1_pportdata *ppd) 10169 { 10170 int i; 10171 u64 sreg = 0; 10172 struct hfi1_devdata *dd = ppd->dd; 10173 u32 mask = ~((1U << ppd->lmc) - 1); 10174 u64 c1 = read_csr(ppd->dd, DCC_CFG_PORT_CONFIG1); 10175 u32 lid; 10176 10177 /* 10178 * Program 0 in CSR if port lid is extended. This prevents 10179 * 9B packets being sent out for large lids. 10180 */ 10181 lid = (ppd->lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) ? 0 : ppd->lid; 10182 c1 &= ~(DCC_CFG_PORT_CONFIG1_TARGET_DLID_SMASK 10183 | DCC_CFG_PORT_CONFIG1_DLID_MASK_SMASK); 10184 c1 |= ((lid & DCC_CFG_PORT_CONFIG1_TARGET_DLID_MASK) 10185 << DCC_CFG_PORT_CONFIG1_TARGET_DLID_SHIFT) | 10186 ((mask & DCC_CFG_PORT_CONFIG1_DLID_MASK_MASK) 10187 << DCC_CFG_PORT_CONFIG1_DLID_MASK_SHIFT); 10188 write_csr(ppd->dd, DCC_CFG_PORT_CONFIG1, c1); 10189 10190 /* 10191 * Iterate over all the send contexts and set their SLID check 10192 */ 10193 sreg = ((mask & SEND_CTXT_CHECK_SLID_MASK_MASK) << 10194 SEND_CTXT_CHECK_SLID_MASK_SHIFT) | 10195 (((lid & mask) & SEND_CTXT_CHECK_SLID_VALUE_MASK) << 10196 SEND_CTXT_CHECK_SLID_VALUE_SHIFT); 10197 10198 for (i = 0; i < chip_send_contexts(dd); i++) { 10199 hfi1_cdbg(LINKVERB, "SendContext[%d].SLID_CHECK = 0x%x", 10200 i, (u32)sreg); 10201 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_SLID, sreg); 10202 } 10203 10204 /* Now we have to do the same thing for the sdma engines */ 10205 sdma_update_lmc(dd, mask, lid); 10206 } 10207 10208 static const char *state_completed_string(u32 completed) 10209 { 10210 static const char * const state_completed[] = { 10211 "EstablishComm", 10212 "OptimizeEQ", 10213 "VerifyCap" 10214 }; 10215 10216 if (completed < ARRAY_SIZE(state_completed)) 10217 return state_completed[completed]; 10218 10219 return "unknown"; 10220 } 10221 10222 static const char all_lanes_dead_timeout_expired[] = 10223 "All lanes were inactive – was the interconnect media removed?"; 10224 static const char tx_out_of_policy[] = 10225 "Passing lanes on local port do not meet the local link width policy"; 10226 static const char no_state_complete[] = 10227 "State timeout occurred before link partner completed the state"; 10228 static const char * const state_complete_reasons[] = { 10229 [0x00] = "Reason unknown", 10230 [0x01] = "Link was halted by driver, refer to LinkDownReason", 10231 [0x02] = "Link partner reported failure", 10232 [0x10] = "Unable to achieve frame sync on any lane", 10233 [0x11] = 10234 "Unable to find a common bit rate with the link partner", 10235 [0x12] = 10236 "Unable to achieve frame sync on sufficient lanes to meet the local link width policy", 10237 [0x13] = 10238 "Unable to identify preset equalization on sufficient lanes to meet the local link width policy", 10239 [0x14] = no_state_complete, 10240 [0x15] = 10241 "State timeout occurred before link partner identified equalization presets", 10242 [0x16] = 10243 "Link partner completed the EstablishComm state, but the passing lanes do not meet the local link width policy", 10244 [0x17] = tx_out_of_policy, 10245 [0x20] = all_lanes_dead_timeout_expired, 10246 [0x21] = 10247 "Unable to achieve acceptable BER on sufficient lanes to meet the local link width policy", 10248 [0x22] = no_state_complete, 10249 [0x23] = 10250 "Link partner completed the OptimizeEq state, but the passing lanes do not meet the local link width policy", 10251 [0x24] = tx_out_of_policy, 10252 [0x30] = all_lanes_dead_timeout_expired, 10253 [0x31] = 10254 "State timeout occurred waiting for host to process received frames", 10255 [0x32] = no_state_complete, 10256 [0x33] = 10257 "Link partner completed the VerifyCap state, but the passing lanes do not meet the local link width policy", 10258 [0x34] = tx_out_of_policy, 10259 [0x35] = "Negotiated link width is mutually exclusive", 10260 [0x36] = 10261 "Timed out before receiving verifycap frames in VerifyCap.Exchange", 10262 [0x37] = "Unable to resolve secure data exchange", 10263 }; 10264 10265 static const char *state_complete_reason_code_string(struct hfi1_pportdata *ppd, 10266 u32 code) 10267 { 10268 const char *str = NULL; 10269 10270 if (code < ARRAY_SIZE(state_complete_reasons)) 10271 str = state_complete_reasons[code]; 10272 10273 if (str) 10274 return str; 10275 return "Reserved"; 10276 } 10277 10278 /* describe the given last state complete frame */ 10279 static void decode_state_complete(struct hfi1_pportdata *ppd, u32 frame, 10280 const char *prefix) 10281 { 10282 struct hfi1_devdata *dd = ppd->dd; 10283 u32 success; 10284 u32 state; 10285 u32 reason; 10286 u32 lanes; 10287 10288 /* 10289 * Decode frame: 10290 * [ 0: 0] - success 10291 * [ 3: 1] - state 10292 * [ 7: 4] - next state timeout 10293 * [15: 8] - reason code 10294 * [31:16] - lanes 10295 */ 10296 success = frame & 0x1; 10297 state = (frame >> 1) & 0x7; 10298 reason = (frame >> 8) & 0xff; 10299 lanes = (frame >> 16) & 0xffff; 10300 10301 dd_dev_err(dd, "Last %s LNI state complete frame 0x%08x:\n", 10302 prefix, frame); 10303 dd_dev_err(dd, " last reported state state: %s (0x%x)\n", 10304 state_completed_string(state), state); 10305 dd_dev_err(dd, " state successfully completed: %s\n", 10306 success ? "yes" : "no"); 10307 dd_dev_err(dd, " fail reason 0x%x: %s\n", 10308 reason, state_complete_reason_code_string(ppd, reason)); 10309 dd_dev_err(dd, " passing lane mask: 0x%x", lanes); 10310 } 10311 10312 /* 10313 * Read the last state complete frames and explain them. This routine 10314 * expects to be called if the link went down during link negotiation 10315 * and initialization (LNI). That is, anywhere between polling and link up. 10316 */ 10317 static void check_lni_states(struct hfi1_pportdata *ppd) 10318 { 10319 u32 last_local_state; 10320 u32 last_remote_state; 10321 10322 read_last_local_state(ppd->dd, &last_local_state); 10323 read_last_remote_state(ppd->dd, &last_remote_state); 10324 10325 /* 10326 * Don't report anything if there is nothing to report. A value of 10327 * 0 means the link was taken down while polling and there was no 10328 * training in-process. 10329 */ 10330 if (last_local_state == 0 && last_remote_state == 0) 10331 return; 10332 10333 decode_state_complete(ppd, last_local_state, "transmitted"); 10334 decode_state_complete(ppd, last_remote_state, "received"); 10335 } 10336 10337 /* wait for wait_ms for LINK_TRANSFER_ACTIVE to go to 1 */ 10338 static int wait_link_transfer_active(struct hfi1_devdata *dd, int wait_ms) 10339 { 10340 u64 reg; 10341 unsigned long timeout; 10342 10343 /* watch LCB_STS_LINK_TRANSFER_ACTIVE */ 10344 timeout = jiffies + msecs_to_jiffies(wait_ms); 10345 while (1) { 10346 reg = read_csr(dd, DC_LCB_STS_LINK_TRANSFER_ACTIVE); 10347 if (reg) 10348 break; 10349 if (time_after(jiffies, timeout)) { 10350 dd_dev_err(dd, 10351 "timeout waiting for LINK_TRANSFER_ACTIVE\n"); 10352 return -ETIMEDOUT; 10353 } 10354 udelay(2); 10355 } 10356 return 0; 10357 } 10358 10359 /* called when the logical link state is not down as it should be */ 10360 static void force_logical_link_state_down(struct hfi1_pportdata *ppd) 10361 { 10362 struct hfi1_devdata *dd = ppd->dd; 10363 10364 /* 10365 * Bring link up in LCB loopback 10366 */ 10367 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 1); 10368 write_csr(dd, DC_LCB_CFG_IGNORE_LOST_RCLK, 10369 DC_LCB_CFG_IGNORE_LOST_RCLK_EN_SMASK); 10370 10371 write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0); 10372 write_csr(dd, DC_LCB_CFG_REINIT_AS_SLAVE, 0); 10373 write_csr(dd, DC_LCB_CFG_CNT_FOR_SKIP_STALL, 0x110); 10374 write_csr(dd, DC_LCB_CFG_LOOPBACK, 0x2); 10375 10376 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0); 10377 (void)read_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET); 10378 udelay(3); 10379 write_csr(dd, DC_LCB_CFG_ALLOW_LINK_UP, 1); 10380 write_csr(dd, DC_LCB_CFG_RUN, 1ull << DC_LCB_CFG_RUN_EN_SHIFT); 10381 10382 wait_link_transfer_active(dd, 100); 10383 10384 /* 10385 * Bring the link down again. 10386 */ 10387 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 1); 10388 write_csr(dd, DC_LCB_CFG_ALLOW_LINK_UP, 0); 10389 write_csr(dd, DC_LCB_CFG_IGNORE_LOST_RCLK, 0); 10390 10391 dd_dev_info(ppd->dd, "logical state forced to LINK_DOWN\n"); 10392 } 10393 10394 /* 10395 * Helper for set_link_state(). Do not call except from that routine. 10396 * Expects ppd->hls_mutex to be held. 10397 * 10398 * @rem_reason value to be sent to the neighbor 10399 * 10400 * LinkDownReasons only set if transition succeeds. 10401 */ 10402 static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason) 10403 { 10404 struct hfi1_devdata *dd = ppd->dd; 10405 u32 previous_state; 10406 int offline_state_ret; 10407 int ret; 10408 10409 update_lcb_cache(dd); 10410 10411 previous_state = ppd->host_link_state; 10412 ppd->host_link_state = HLS_GOING_OFFLINE; 10413 10414 /* start offline transition */ 10415 ret = set_physical_link_state(dd, (rem_reason << 8) | PLS_OFFLINE); 10416 10417 if (ret != HCMD_SUCCESS) { 10418 dd_dev_err(dd, 10419 "Failed to transition to Offline link state, return %d\n", 10420 ret); 10421 return -EINVAL; 10422 } 10423 if (ppd->offline_disabled_reason == 10424 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE)) 10425 ppd->offline_disabled_reason = 10426 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT); 10427 10428 offline_state_ret = wait_phys_link_offline_substates(ppd, 10000); 10429 if (offline_state_ret < 0) 10430 return offline_state_ret; 10431 10432 /* Disabling AOC transmitters */ 10433 if (ppd->port_type == PORT_TYPE_QSFP && 10434 ppd->qsfp_info.limiting_active && 10435 qsfp_mod_present(ppd)) { 10436 int ret; 10437 10438 ret = acquire_chip_resource(dd, qsfp_resource(dd), QSFP_WAIT); 10439 if (ret == 0) { 10440 set_qsfp_tx(ppd, 0); 10441 release_chip_resource(dd, qsfp_resource(dd)); 10442 } else { 10443 /* not fatal, but should warn */ 10444 dd_dev_err(dd, 10445 "Unable to acquire lock to turn off QSFP TX\n"); 10446 } 10447 } 10448 10449 /* 10450 * Wait for the offline.Quiet transition if it hasn't happened yet. It 10451 * can take a while for the link to go down. 10452 */ 10453 if (offline_state_ret != PLS_OFFLINE_QUIET) { 10454 ret = wait_physical_linkstate(ppd, PLS_OFFLINE, 30000); 10455 if (ret < 0) 10456 return ret; 10457 } 10458 10459 /* 10460 * Now in charge of LCB - must be after the physical state is 10461 * offline.quiet and before host_link_state is changed. 10462 */ 10463 set_host_lcb_access(dd); 10464 write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */ 10465 10466 /* make sure the logical state is also down */ 10467 ret = wait_logical_linkstate(ppd, IB_PORT_DOWN, 1000); 10468 if (ret) 10469 force_logical_link_state_down(ppd); 10470 10471 ppd->host_link_state = HLS_LINK_COOLDOWN; /* LCB access allowed */ 10472 update_statusp(ppd, IB_PORT_DOWN); 10473 10474 /* 10475 * The LNI has a mandatory wait time after the physical state 10476 * moves to Offline.Quiet. The wait time may be different 10477 * depending on how the link went down. The 8051 firmware 10478 * will observe the needed wait time and only move to ready 10479 * when that is completed. The largest of the quiet timeouts 10480 * is 6s, so wait that long and then at least 0.5s more for 10481 * other transitions, and another 0.5s for a buffer. 10482 */ 10483 ret = wait_fm_ready(dd, 7000); 10484 if (ret) { 10485 dd_dev_err(dd, 10486 "After going offline, timed out waiting for the 8051 to become ready to accept host requests\n"); 10487 /* state is really offline, so make it so */ 10488 ppd->host_link_state = HLS_DN_OFFLINE; 10489 return ret; 10490 } 10491 10492 /* 10493 * The state is now offline and the 8051 is ready to accept host 10494 * requests. 10495 * - change our state 10496 * - notify others if we were previously in a linkup state 10497 */ 10498 ppd->host_link_state = HLS_DN_OFFLINE; 10499 if (previous_state & HLS_UP) { 10500 /* went down while link was up */ 10501 handle_linkup_change(dd, 0); 10502 } else if (previous_state 10503 & (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) { 10504 /* went down while attempting link up */ 10505 check_lni_states(ppd); 10506 10507 /* The QSFP doesn't need to be reset on LNI failure */ 10508 ppd->qsfp_info.reset_needed = 0; 10509 } 10510 10511 /* the active link width (downgrade) is 0 on link down */ 10512 ppd->link_width_active = 0; 10513 ppd->link_width_downgrade_tx_active = 0; 10514 ppd->link_width_downgrade_rx_active = 0; 10515 ppd->current_egress_rate = 0; 10516 return 0; 10517 } 10518 10519 /* return the link state name */ 10520 static const char *link_state_name(u32 state) 10521 { 10522 const char *name; 10523 int n = ilog2(state); 10524 static const char * const names[] = { 10525 [__HLS_UP_INIT_BP] = "INIT", 10526 [__HLS_UP_ARMED_BP] = "ARMED", 10527 [__HLS_UP_ACTIVE_BP] = "ACTIVE", 10528 [__HLS_DN_DOWNDEF_BP] = "DOWNDEF", 10529 [__HLS_DN_POLL_BP] = "POLL", 10530 [__HLS_DN_DISABLE_BP] = "DISABLE", 10531 [__HLS_DN_OFFLINE_BP] = "OFFLINE", 10532 [__HLS_VERIFY_CAP_BP] = "VERIFY_CAP", 10533 [__HLS_GOING_UP_BP] = "GOING_UP", 10534 [__HLS_GOING_OFFLINE_BP] = "GOING_OFFLINE", 10535 [__HLS_LINK_COOLDOWN_BP] = "LINK_COOLDOWN" 10536 }; 10537 10538 name = n < ARRAY_SIZE(names) ? names[n] : NULL; 10539 return name ? name : "unknown"; 10540 } 10541 10542 /* return the link state reason name */ 10543 static const char *link_state_reason_name(struct hfi1_pportdata *ppd, u32 state) 10544 { 10545 if (state == HLS_UP_INIT) { 10546 switch (ppd->linkinit_reason) { 10547 case OPA_LINKINIT_REASON_LINKUP: 10548 return "(LINKUP)"; 10549 case OPA_LINKINIT_REASON_FLAPPING: 10550 return "(FLAPPING)"; 10551 case OPA_LINKINIT_OUTSIDE_POLICY: 10552 return "(OUTSIDE_POLICY)"; 10553 case OPA_LINKINIT_QUARANTINED: 10554 return "(QUARANTINED)"; 10555 case OPA_LINKINIT_INSUFIC_CAPABILITY: 10556 return "(INSUFIC_CAPABILITY)"; 10557 default: 10558 break; 10559 } 10560 } 10561 return ""; 10562 } 10563 10564 /* 10565 * driver_pstate - convert the driver's notion of a port's 10566 * state (an HLS_*) into a physical state (a {IB,OPA}_PORTPHYSSTATE_*). 10567 * Return -1 (converted to a u32) to indicate error. 10568 */ 10569 u32 driver_pstate(struct hfi1_pportdata *ppd) 10570 { 10571 switch (ppd->host_link_state) { 10572 case HLS_UP_INIT: 10573 case HLS_UP_ARMED: 10574 case HLS_UP_ACTIVE: 10575 return IB_PORTPHYSSTATE_LINKUP; 10576 case HLS_DN_POLL: 10577 return IB_PORTPHYSSTATE_POLLING; 10578 case HLS_DN_DISABLE: 10579 return IB_PORTPHYSSTATE_DISABLED; 10580 case HLS_DN_OFFLINE: 10581 return OPA_PORTPHYSSTATE_OFFLINE; 10582 case HLS_VERIFY_CAP: 10583 return IB_PORTPHYSSTATE_TRAINING; 10584 case HLS_GOING_UP: 10585 return IB_PORTPHYSSTATE_TRAINING; 10586 case HLS_GOING_OFFLINE: 10587 return OPA_PORTPHYSSTATE_OFFLINE; 10588 case HLS_LINK_COOLDOWN: 10589 return OPA_PORTPHYSSTATE_OFFLINE; 10590 case HLS_DN_DOWNDEF: 10591 default: 10592 dd_dev_err(ppd->dd, "invalid host_link_state 0x%x\n", 10593 ppd->host_link_state); 10594 return -1; 10595 } 10596 } 10597 10598 /* 10599 * driver_lstate - convert the driver's notion of a port's 10600 * state (an HLS_*) into a logical state (a IB_PORT_*). Return -1 10601 * (converted to a u32) to indicate error. 10602 */ 10603 u32 driver_lstate(struct hfi1_pportdata *ppd) 10604 { 10605 if (ppd->host_link_state && (ppd->host_link_state & HLS_DOWN)) 10606 return IB_PORT_DOWN; 10607 10608 switch (ppd->host_link_state & HLS_UP) { 10609 case HLS_UP_INIT: 10610 return IB_PORT_INIT; 10611 case HLS_UP_ARMED: 10612 return IB_PORT_ARMED; 10613 case HLS_UP_ACTIVE: 10614 return IB_PORT_ACTIVE; 10615 default: 10616 dd_dev_err(ppd->dd, "invalid host_link_state 0x%x\n", 10617 ppd->host_link_state); 10618 return -1; 10619 } 10620 } 10621 10622 void set_link_down_reason(struct hfi1_pportdata *ppd, u8 lcl_reason, 10623 u8 neigh_reason, u8 rem_reason) 10624 { 10625 if (ppd->local_link_down_reason.latest == 0 && 10626 ppd->neigh_link_down_reason.latest == 0) { 10627 ppd->local_link_down_reason.latest = lcl_reason; 10628 ppd->neigh_link_down_reason.latest = neigh_reason; 10629 ppd->remote_link_down_reason = rem_reason; 10630 } 10631 } 10632 10633 /** 10634 * data_vls_operational() - Verify if data VL BCT credits and MTU 10635 * are both set. 10636 * @ppd: pointer to hfi1_pportdata structure 10637 * 10638 * Return: true - Ok, false -otherwise. 10639 */ 10640 static inline bool data_vls_operational(struct hfi1_pportdata *ppd) 10641 { 10642 int i; 10643 u64 reg; 10644 10645 if (!ppd->actual_vls_operational) 10646 return false; 10647 10648 for (i = 0; i < ppd->vls_supported; i++) { 10649 reg = read_csr(ppd->dd, SEND_CM_CREDIT_VL + (8 * i)); 10650 if ((reg && !ppd->dd->vld[i].mtu) || 10651 (!reg && ppd->dd->vld[i].mtu)) 10652 return false; 10653 } 10654 10655 return true; 10656 } 10657 10658 /* 10659 * Change the physical and/or logical link state. 10660 * 10661 * Do not call this routine while inside an interrupt. It contains 10662 * calls to routines that can take multiple seconds to finish. 10663 * 10664 * Returns 0 on success, -errno on failure. 10665 */ 10666 int set_link_state(struct hfi1_pportdata *ppd, u32 state) 10667 { 10668 struct hfi1_devdata *dd = ppd->dd; 10669 struct ib_event event = {.device = NULL}; 10670 int ret1, ret = 0; 10671 int orig_new_state, poll_bounce; 10672 10673 mutex_lock(&ppd->hls_lock); 10674 10675 orig_new_state = state; 10676 if (state == HLS_DN_DOWNDEF) 10677 state = HLS_DEFAULT; 10678 10679 /* interpret poll -> poll as a link bounce */ 10680 poll_bounce = ppd->host_link_state == HLS_DN_POLL && 10681 state == HLS_DN_POLL; 10682 10683 dd_dev_info(dd, "%s: current %s, new %s %s%s\n", __func__, 10684 link_state_name(ppd->host_link_state), 10685 link_state_name(orig_new_state), 10686 poll_bounce ? "(bounce) " : "", 10687 link_state_reason_name(ppd, state)); 10688 10689 /* 10690 * If we're going to a (HLS_*) link state that implies the logical 10691 * link state is neither of (IB_PORT_ARMED, IB_PORT_ACTIVE), then 10692 * reset is_sm_config_started to 0. 10693 */ 10694 if (!(state & (HLS_UP_ARMED | HLS_UP_ACTIVE))) 10695 ppd->is_sm_config_started = 0; 10696 10697 /* 10698 * Do nothing if the states match. Let a poll to poll link bounce 10699 * go through. 10700 */ 10701 if (ppd->host_link_state == state && !poll_bounce) 10702 goto done; 10703 10704 switch (state) { 10705 case HLS_UP_INIT: 10706 if (ppd->host_link_state == HLS_DN_POLL && 10707 (quick_linkup || dd->icode == ICODE_FUNCTIONAL_SIMULATOR)) { 10708 /* 10709 * Quick link up jumps from polling to here. 10710 * 10711 * Whether in normal or loopback mode, the 10712 * simulator jumps from polling to link up. 10713 * Accept that here. 10714 */ 10715 /* OK */ 10716 } else if (ppd->host_link_state != HLS_GOING_UP) { 10717 goto unexpected; 10718 } 10719 10720 /* 10721 * Wait for Link_Up physical state. 10722 * Physical and Logical states should already be 10723 * be transitioned to LinkUp and LinkInit respectively. 10724 */ 10725 ret = wait_physical_linkstate(ppd, PLS_LINKUP, 1000); 10726 if (ret) { 10727 dd_dev_err(dd, 10728 "%s: physical state did not change to LINK-UP\n", 10729 __func__); 10730 break; 10731 } 10732 10733 ret = wait_logical_linkstate(ppd, IB_PORT_INIT, 1000); 10734 if (ret) { 10735 dd_dev_err(dd, 10736 "%s: logical state did not change to INIT\n", 10737 __func__); 10738 break; 10739 } 10740 10741 /* clear old transient LINKINIT_REASON code */ 10742 if (ppd->linkinit_reason >= OPA_LINKINIT_REASON_CLEAR) 10743 ppd->linkinit_reason = 10744 OPA_LINKINIT_REASON_LINKUP; 10745 10746 /* enable the port */ 10747 add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 10748 10749 handle_linkup_change(dd, 1); 10750 pio_kernel_linkup(dd); 10751 10752 /* 10753 * After link up, a new link width will have been set. 10754 * Update the xmit counters with regards to the new 10755 * link width. 10756 */ 10757 update_xmit_counters(ppd, ppd->link_width_active); 10758 10759 ppd->host_link_state = HLS_UP_INIT; 10760 update_statusp(ppd, IB_PORT_INIT); 10761 break; 10762 case HLS_UP_ARMED: 10763 if (ppd->host_link_state != HLS_UP_INIT) 10764 goto unexpected; 10765 10766 if (!data_vls_operational(ppd)) { 10767 dd_dev_err(dd, 10768 "%s: Invalid data VL credits or mtu\n", 10769 __func__); 10770 ret = -EINVAL; 10771 break; 10772 } 10773 10774 set_logical_state(dd, LSTATE_ARMED); 10775 ret = wait_logical_linkstate(ppd, IB_PORT_ARMED, 1000); 10776 if (ret) { 10777 dd_dev_err(dd, 10778 "%s: logical state did not change to ARMED\n", 10779 __func__); 10780 break; 10781 } 10782 ppd->host_link_state = HLS_UP_ARMED; 10783 update_statusp(ppd, IB_PORT_ARMED); 10784 /* 10785 * The simulator does not currently implement SMA messages, 10786 * so neighbor_normal is not set. Set it here when we first 10787 * move to Armed. 10788 */ 10789 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) 10790 ppd->neighbor_normal = 1; 10791 break; 10792 case HLS_UP_ACTIVE: 10793 if (ppd->host_link_state != HLS_UP_ARMED) 10794 goto unexpected; 10795 10796 set_logical_state(dd, LSTATE_ACTIVE); 10797 ret = wait_logical_linkstate(ppd, IB_PORT_ACTIVE, 1000); 10798 if (ret) { 10799 dd_dev_err(dd, 10800 "%s: logical state did not change to ACTIVE\n", 10801 __func__); 10802 } else { 10803 /* tell all engines to go running */ 10804 sdma_all_running(dd); 10805 ppd->host_link_state = HLS_UP_ACTIVE; 10806 update_statusp(ppd, IB_PORT_ACTIVE); 10807 10808 /* Signal the IB layer that the port has went active */ 10809 event.device = &dd->verbs_dev.rdi.ibdev; 10810 event.element.port_num = ppd->port; 10811 event.event = IB_EVENT_PORT_ACTIVE; 10812 } 10813 break; 10814 case HLS_DN_POLL: 10815 if ((ppd->host_link_state == HLS_DN_DISABLE || 10816 ppd->host_link_state == HLS_DN_OFFLINE) && 10817 dd->dc_shutdown) 10818 dc_start(dd); 10819 /* Hand LED control to the DC */ 10820 write_csr(dd, DCC_CFG_LED_CNTRL, 0); 10821 10822 if (ppd->host_link_state != HLS_DN_OFFLINE) { 10823 u8 tmp = ppd->link_enabled; 10824 10825 ret = goto_offline(ppd, ppd->remote_link_down_reason); 10826 if (ret) { 10827 ppd->link_enabled = tmp; 10828 break; 10829 } 10830 ppd->remote_link_down_reason = 0; 10831 10832 if (ppd->driver_link_ready) 10833 ppd->link_enabled = 1; 10834 } 10835 10836 set_all_slowpath(ppd->dd); 10837 ret = set_local_link_attributes(ppd); 10838 if (ret) 10839 break; 10840 10841 ppd->port_error_action = 0; 10842 10843 if (quick_linkup) { 10844 /* quick linkup does not go into polling */ 10845 ret = do_quick_linkup(dd); 10846 } else { 10847 ret1 = set_physical_link_state(dd, PLS_POLLING); 10848 if (!ret1) 10849 ret1 = wait_phys_link_out_of_offline(ppd, 10850 3000); 10851 if (ret1 != HCMD_SUCCESS) { 10852 dd_dev_err(dd, 10853 "Failed to transition to Polling link state, return 0x%x\n", 10854 ret1); 10855 ret = -EINVAL; 10856 } 10857 } 10858 10859 /* 10860 * Change the host link state after requesting DC8051 to 10861 * change its physical state so that we can ignore any 10862 * interrupt with stale LNI(XX) error, which will not be 10863 * cleared until DC8051 transitions to Polling state. 10864 */ 10865 ppd->host_link_state = HLS_DN_POLL; 10866 ppd->offline_disabled_reason = 10867 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE); 10868 /* 10869 * If an error occurred above, go back to offline. The 10870 * caller may reschedule another attempt. 10871 */ 10872 if (ret) 10873 goto_offline(ppd, 0); 10874 else 10875 log_physical_state(ppd, PLS_POLLING); 10876 break; 10877 case HLS_DN_DISABLE: 10878 /* link is disabled */ 10879 ppd->link_enabled = 0; 10880 10881 /* allow any state to transition to disabled */ 10882 10883 /* must transition to offline first */ 10884 if (ppd->host_link_state != HLS_DN_OFFLINE) { 10885 ret = goto_offline(ppd, ppd->remote_link_down_reason); 10886 if (ret) 10887 break; 10888 ppd->remote_link_down_reason = 0; 10889 } 10890 10891 if (!dd->dc_shutdown) { 10892 ret1 = set_physical_link_state(dd, PLS_DISABLED); 10893 if (ret1 != HCMD_SUCCESS) { 10894 dd_dev_err(dd, 10895 "Failed to transition to Disabled link state, return 0x%x\n", 10896 ret1); 10897 ret = -EINVAL; 10898 break; 10899 } 10900 ret = wait_physical_linkstate(ppd, PLS_DISABLED, 10000); 10901 if (ret) { 10902 dd_dev_err(dd, 10903 "%s: physical state did not change to DISABLED\n", 10904 __func__); 10905 break; 10906 } 10907 dc_shutdown(dd); 10908 } 10909 ppd->host_link_state = HLS_DN_DISABLE; 10910 break; 10911 case HLS_DN_OFFLINE: 10912 if (ppd->host_link_state == HLS_DN_DISABLE) 10913 dc_start(dd); 10914 10915 /* allow any state to transition to offline */ 10916 ret = goto_offline(ppd, ppd->remote_link_down_reason); 10917 if (!ret) 10918 ppd->remote_link_down_reason = 0; 10919 break; 10920 case HLS_VERIFY_CAP: 10921 if (ppd->host_link_state != HLS_DN_POLL) 10922 goto unexpected; 10923 ppd->host_link_state = HLS_VERIFY_CAP; 10924 log_physical_state(ppd, PLS_CONFIGPHY_VERIFYCAP); 10925 break; 10926 case HLS_GOING_UP: 10927 if (ppd->host_link_state != HLS_VERIFY_CAP) 10928 goto unexpected; 10929 10930 ret1 = set_physical_link_state(dd, PLS_LINKUP); 10931 if (ret1 != HCMD_SUCCESS) { 10932 dd_dev_err(dd, 10933 "Failed to transition to link up state, return 0x%x\n", 10934 ret1); 10935 ret = -EINVAL; 10936 break; 10937 } 10938 ppd->host_link_state = HLS_GOING_UP; 10939 break; 10940 10941 case HLS_GOING_OFFLINE: /* transient within goto_offline() */ 10942 case HLS_LINK_COOLDOWN: /* transient within goto_offline() */ 10943 default: 10944 dd_dev_info(dd, "%s: state 0x%x: not supported\n", 10945 __func__, state); 10946 ret = -EINVAL; 10947 break; 10948 } 10949 10950 goto done; 10951 10952 unexpected: 10953 dd_dev_err(dd, "%s: unexpected state transition from %s to %s\n", 10954 __func__, link_state_name(ppd->host_link_state), 10955 link_state_name(state)); 10956 ret = -EINVAL; 10957 10958 done: 10959 mutex_unlock(&ppd->hls_lock); 10960 10961 if (event.device) 10962 ib_dispatch_event(&event); 10963 10964 return ret; 10965 } 10966 10967 int hfi1_set_ib_cfg(struct hfi1_pportdata *ppd, int which, u32 val) 10968 { 10969 u64 reg; 10970 int ret = 0; 10971 10972 switch (which) { 10973 case HFI1_IB_CFG_LIDLMC: 10974 set_lidlmc(ppd); 10975 break; 10976 case HFI1_IB_CFG_VL_HIGH_LIMIT: 10977 /* 10978 * The VL Arbitrator high limit is sent in units of 4k 10979 * bytes, while HFI stores it in units of 64 bytes. 10980 */ 10981 val *= 4096 / 64; 10982 reg = ((u64)val & SEND_HIGH_PRIORITY_LIMIT_LIMIT_MASK) 10983 << SEND_HIGH_PRIORITY_LIMIT_LIMIT_SHIFT; 10984 write_csr(ppd->dd, SEND_HIGH_PRIORITY_LIMIT, reg); 10985 break; 10986 case HFI1_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ 10987 /* HFI only supports POLL as the default link down state */ 10988 if (val != HLS_DN_POLL) 10989 ret = -EINVAL; 10990 break; 10991 case HFI1_IB_CFG_OP_VLS: 10992 if (ppd->vls_operational != val) { 10993 ppd->vls_operational = val; 10994 if (!ppd->port) 10995 ret = -EINVAL; 10996 } 10997 break; 10998 /* 10999 * For link width, link width downgrade, and speed enable, always AND 11000 * the setting with what is actually supported. This has two benefits. 11001 * First, enabled can't have unsupported values, no matter what the 11002 * SM or FM might want. Second, the ALL_SUPPORTED wildcards that mean 11003 * "fill in with your supported value" have all the bits in the 11004 * field set, so simply ANDing with supported has the desired result. 11005 */ 11006 case HFI1_IB_CFG_LWID_ENB: /* set allowed Link-width */ 11007 ppd->link_width_enabled = val & ppd->link_width_supported; 11008 break; 11009 case HFI1_IB_CFG_LWID_DG_ENB: /* set allowed link width downgrade */ 11010 ppd->link_width_downgrade_enabled = 11011 val & ppd->link_width_downgrade_supported; 11012 break; 11013 case HFI1_IB_CFG_SPD_ENB: /* allowed Link speeds */ 11014 ppd->link_speed_enabled = val & ppd->link_speed_supported; 11015 break; 11016 case HFI1_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ 11017 /* 11018 * HFI does not follow IB specs, save this value 11019 * so we can report it, if asked. 11020 */ 11021 ppd->overrun_threshold = val; 11022 break; 11023 case HFI1_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ 11024 /* 11025 * HFI does not follow IB specs, save this value 11026 * so we can report it, if asked. 11027 */ 11028 ppd->phy_error_threshold = val; 11029 break; 11030 11031 case HFI1_IB_CFG_MTU: 11032 set_send_length(ppd); 11033 break; 11034 11035 case HFI1_IB_CFG_PKEYS: 11036 if (HFI1_CAP_IS_KSET(PKEY_CHECK)) 11037 set_partition_keys(ppd); 11038 break; 11039 11040 default: 11041 if (HFI1_CAP_IS_KSET(PRINT_UNIMPL)) 11042 dd_dev_info(ppd->dd, 11043 "%s: which %s, val 0x%x: not implemented\n", 11044 __func__, ib_cfg_name(which), val); 11045 break; 11046 } 11047 return ret; 11048 } 11049 11050 /* begin functions related to vl arbitration table caching */ 11051 static void init_vl_arb_caches(struct hfi1_pportdata *ppd) 11052 { 11053 int i; 11054 11055 BUILD_BUG_ON(VL_ARB_TABLE_SIZE != 11056 VL_ARB_LOW_PRIO_TABLE_SIZE); 11057 BUILD_BUG_ON(VL_ARB_TABLE_SIZE != 11058 VL_ARB_HIGH_PRIO_TABLE_SIZE); 11059 11060 /* 11061 * Note that we always return values directly from the 11062 * 'vl_arb_cache' (and do no CSR reads) in response to a 11063 * 'Get(VLArbTable)'. This is obviously correct after a 11064 * 'Set(VLArbTable)', since the cache will then be up to 11065 * date. But it's also correct prior to any 'Set(VLArbTable)' 11066 * since then both the cache, and the relevant h/w registers 11067 * will be zeroed. 11068 */ 11069 11070 for (i = 0; i < MAX_PRIO_TABLE; i++) 11071 spin_lock_init(&ppd->vl_arb_cache[i].lock); 11072 } 11073 11074 /* 11075 * vl_arb_lock_cache 11076 * 11077 * All other vl_arb_* functions should be called only after locking 11078 * the cache. 11079 */ 11080 static inline struct vl_arb_cache * 11081 vl_arb_lock_cache(struct hfi1_pportdata *ppd, int idx) 11082 { 11083 if (idx != LO_PRIO_TABLE && idx != HI_PRIO_TABLE) 11084 return NULL; 11085 spin_lock(&ppd->vl_arb_cache[idx].lock); 11086 return &ppd->vl_arb_cache[idx]; 11087 } 11088 11089 static inline void vl_arb_unlock_cache(struct hfi1_pportdata *ppd, int idx) 11090 { 11091 spin_unlock(&ppd->vl_arb_cache[idx].lock); 11092 } 11093 11094 static void vl_arb_get_cache(struct vl_arb_cache *cache, 11095 struct ib_vl_weight_elem *vl) 11096 { 11097 memcpy(vl, cache->table, VL_ARB_TABLE_SIZE * sizeof(*vl)); 11098 } 11099 11100 static void vl_arb_set_cache(struct vl_arb_cache *cache, 11101 struct ib_vl_weight_elem *vl) 11102 { 11103 memcpy(cache->table, vl, VL_ARB_TABLE_SIZE * sizeof(*vl)); 11104 } 11105 11106 static int vl_arb_match_cache(struct vl_arb_cache *cache, 11107 struct ib_vl_weight_elem *vl) 11108 { 11109 return !memcmp(cache->table, vl, VL_ARB_TABLE_SIZE * sizeof(*vl)); 11110 } 11111 11112 /* end functions related to vl arbitration table caching */ 11113 11114 static int set_vl_weights(struct hfi1_pportdata *ppd, u32 target, 11115 u32 size, struct ib_vl_weight_elem *vl) 11116 { 11117 struct hfi1_devdata *dd = ppd->dd; 11118 u64 reg; 11119 unsigned int i, is_up = 0; 11120 int drain, ret = 0; 11121 11122 mutex_lock(&ppd->hls_lock); 11123 11124 if (ppd->host_link_state & HLS_UP) 11125 is_up = 1; 11126 11127 drain = !is_ax(dd) && is_up; 11128 11129 if (drain) 11130 /* 11131 * Before adjusting VL arbitration weights, empty per-VL 11132 * FIFOs, otherwise a packet whose VL weight is being 11133 * set to 0 could get stuck in a FIFO with no chance to 11134 * egress. 11135 */ 11136 ret = stop_drain_data_vls(dd); 11137 11138 if (ret) { 11139 dd_dev_err( 11140 dd, 11141 "%s: cannot stop/drain VLs - refusing to change VL arbitration weights\n", 11142 __func__); 11143 goto err; 11144 } 11145 11146 for (i = 0; i < size; i++, vl++) { 11147 /* 11148 * NOTE: The low priority shift and mask are used here, but 11149 * they are the same for both the low and high registers. 11150 */ 11151 reg = (((u64)vl->vl & SEND_LOW_PRIORITY_LIST_VL_MASK) 11152 << SEND_LOW_PRIORITY_LIST_VL_SHIFT) 11153 | (((u64)vl->weight 11154 & SEND_LOW_PRIORITY_LIST_WEIGHT_MASK) 11155 << SEND_LOW_PRIORITY_LIST_WEIGHT_SHIFT); 11156 write_csr(dd, target + (i * 8), reg); 11157 } 11158 pio_send_control(dd, PSC_GLOBAL_VLARB_ENABLE); 11159 11160 if (drain) 11161 open_fill_data_vls(dd); /* reopen all VLs */ 11162 11163 err: 11164 mutex_unlock(&ppd->hls_lock); 11165 11166 return ret; 11167 } 11168 11169 /* 11170 * Read one credit merge VL register. 11171 */ 11172 static void read_one_cm_vl(struct hfi1_devdata *dd, u32 csr, 11173 struct vl_limit *vll) 11174 { 11175 u64 reg = read_csr(dd, csr); 11176 11177 vll->dedicated = cpu_to_be16( 11178 (reg >> SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_SHIFT) 11179 & SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_MASK); 11180 vll->shared = cpu_to_be16( 11181 (reg >> SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_SHIFT) 11182 & SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_MASK); 11183 } 11184 11185 /* 11186 * Read the current credit merge limits. 11187 */ 11188 static int get_buffer_control(struct hfi1_devdata *dd, 11189 struct buffer_control *bc, u16 *overall_limit) 11190 { 11191 u64 reg; 11192 int i; 11193 11194 /* not all entries are filled in */ 11195 memset(bc, 0, sizeof(*bc)); 11196 11197 /* OPA and HFI have a 1-1 mapping */ 11198 for (i = 0; i < TXE_NUM_DATA_VL; i++) 11199 read_one_cm_vl(dd, SEND_CM_CREDIT_VL + (8 * i), &bc->vl[i]); 11200 11201 /* NOTE: assumes that VL* and VL15 CSRs are bit-wise identical */ 11202 read_one_cm_vl(dd, SEND_CM_CREDIT_VL15, &bc->vl[15]); 11203 11204 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 11205 bc->overall_shared_limit = cpu_to_be16( 11206 (reg >> SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SHIFT) 11207 & SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_MASK); 11208 if (overall_limit) 11209 *overall_limit = (reg 11210 >> SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SHIFT) 11211 & SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_MASK; 11212 return sizeof(struct buffer_control); 11213 } 11214 11215 static int get_sc2vlnt(struct hfi1_devdata *dd, struct sc2vlnt *dp) 11216 { 11217 u64 reg; 11218 int i; 11219 11220 /* each register contains 16 SC->VLnt mappings, 4 bits each */ 11221 reg = read_csr(dd, DCC_CFG_SC_VL_TABLE_15_0); 11222 for (i = 0; i < sizeof(u64); i++) { 11223 u8 byte = *(((u8 *)®) + i); 11224 11225 dp->vlnt[2 * i] = byte & 0xf; 11226 dp->vlnt[(2 * i) + 1] = (byte & 0xf0) >> 4; 11227 } 11228 11229 reg = read_csr(dd, DCC_CFG_SC_VL_TABLE_31_16); 11230 for (i = 0; i < sizeof(u64); i++) { 11231 u8 byte = *(((u8 *)®) + i); 11232 11233 dp->vlnt[16 + (2 * i)] = byte & 0xf; 11234 dp->vlnt[16 + (2 * i) + 1] = (byte & 0xf0) >> 4; 11235 } 11236 return sizeof(struct sc2vlnt); 11237 } 11238 11239 static void get_vlarb_preempt(struct hfi1_devdata *dd, u32 nelems, 11240 struct ib_vl_weight_elem *vl) 11241 { 11242 unsigned int i; 11243 11244 for (i = 0; i < nelems; i++, vl++) { 11245 vl->vl = 0xf; 11246 vl->weight = 0; 11247 } 11248 } 11249 11250 static void set_sc2vlnt(struct hfi1_devdata *dd, struct sc2vlnt *dp) 11251 { 11252 write_csr(dd, DCC_CFG_SC_VL_TABLE_15_0, 11253 DC_SC_VL_VAL(15_0, 11254 0, dp->vlnt[0] & 0xf, 11255 1, dp->vlnt[1] & 0xf, 11256 2, dp->vlnt[2] & 0xf, 11257 3, dp->vlnt[3] & 0xf, 11258 4, dp->vlnt[4] & 0xf, 11259 5, dp->vlnt[5] & 0xf, 11260 6, dp->vlnt[6] & 0xf, 11261 7, dp->vlnt[7] & 0xf, 11262 8, dp->vlnt[8] & 0xf, 11263 9, dp->vlnt[9] & 0xf, 11264 10, dp->vlnt[10] & 0xf, 11265 11, dp->vlnt[11] & 0xf, 11266 12, dp->vlnt[12] & 0xf, 11267 13, dp->vlnt[13] & 0xf, 11268 14, dp->vlnt[14] & 0xf, 11269 15, dp->vlnt[15] & 0xf)); 11270 write_csr(dd, DCC_CFG_SC_VL_TABLE_31_16, 11271 DC_SC_VL_VAL(31_16, 11272 16, dp->vlnt[16] & 0xf, 11273 17, dp->vlnt[17] & 0xf, 11274 18, dp->vlnt[18] & 0xf, 11275 19, dp->vlnt[19] & 0xf, 11276 20, dp->vlnt[20] & 0xf, 11277 21, dp->vlnt[21] & 0xf, 11278 22, dp->vlnt[22] & 0xf, 11279 23, dp->vlnt[23] & 0xf, 11280 24, dp->vlnt[24] & 0xf, 11281 25, dp->vlnt[25] & 0xf, 11282 26, dp->vlnt[26] & 0xf, 11283 27, dp->vlnt[27] & 0xf, 11284 28, dp->vlnt[28] & 0xf, 11285 29, dp->vlnt[29] & 0xf, 11286 30, dp->vlnt[30] & 0xf, 11287 31, dp->vlnt[31] & 0xf)); 11288 } 11289 11290 static void nonzero_msg(struct hfi1_devdata *dd, int idx, const char *what, 11291 u16 limit) 11292 { 11293 if (limit != 0) 11294 dd_dev_info(dd, "Invalid %s limit %d on VL %d, ignoring\n", 11295 what, (int)limit, idx); 11296 } 11297 11298 /* change only the shared limit portion of SendCmGLobalCredit */ 11299 static void set_global_shared(struct hfi1_devdata *dd, u16 limit) 11300 { 11301 u64 reg; 11302 11303 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 11304 reg &= ~SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SMASK; 11305 reg |= (u64)limit << SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SHIFT; 11306 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 11307 } 11308 11309 /* change only the total credit limit portion of SendCmGLobalCredit */ 11310 static void set_global_limit(struct hfi1_devdata *dd, u16 limit) 11311 { 11312 u64 reg; 11313 11314 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 11315 reg &= ~SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SMASK; 11316 reg |= (u64)limit << SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SHIFT; 11317 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 11318 } 11319 11320 /* set the given per-VL shared limit */ 11321 static void set_vl_shared(struct hfi1_devdata *dd, int vl, u16 limit) 11322 { 11323 u64 reg; 11324 u32 addr; 11325 11326 if (vl < TXE_NUM_DATA_VL) 11327 addr = SEND_CM_CREDIT_VL + (8 * vl); 11328 else 11329 addr = SEND_CM_CREDIT_VL15; 11330 11331 reg = read_csr(dd, addr); 11332 reg &= ~SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_SMASK; 11333 reg |= (u64)limit << SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_SHIFT; 11334 write_csr(dd, addr, reg); 11335 } 11336 11337 /* set the given per-VL dedicated limit */ 11338 static void set_vl_dedicated(struct hfi1_devdata *dd, int vl, u16 limit) 11339 { 11340 u64 reg; 11341 u32 addr; 11342 11343 if (vl < TXE_NUM_DATA_VL) 11344 addr = SEND_CM_CREDIT_VL + (8 * vl); 11345 else 11346 addr = SEND_CM_CREDIT_VL15; 11347 11348 reg = read_csr(dd, addr); 11349 reg &= ~SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_SMASK; 11350 reg |= (u64)limit << SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_SHIFT; 11351 write_csr(dd, addr, reg); 11352 } 11353 11354 /* spin until the given per-VL status mask bits clear */ 11355 static void wait_for_vl_status_clear(struct hfi1_devdata *dd, u64 mask, 11356 const char *which) 11357 { 11358 unsigned long timeout; 11359 u64 reg; 11360 11361 timeout = jiffies + msecs_to_jiffies(VL_STATUS_CLEAR_TIMEOUT); 11362 while (1) { 11363 reg = read_csr(dd, SEND_CM_CREDIT_USED_STATUS) & mask; 11364 11365 if (reg == 0) 11366 return; /* success */ 11367 if (time_after(jiffies, timeout)) 11368 break; /* timed out */ 11369 udelay(1); 11370 } 11371 11372 dd_dev_err(dd, 11373 "%s credit change status not clearing after %dms, mask 0x%llx, not clear 0x%llx\n", 11374 which, VL_STATUS_CLEAR_TIMEOUT, mask, reg); 11375 /* 11376 * If this occurs, it is likely there was a credit loss on the link. 11377 * The only recovery from that is a link bounce. 11378 */ 11379 dd_dev_err(dd, 11380 "Continuing anyway. A credit loss may occur. Suggest a link bounce\n"); 11381 } 11382 11383 /* 11384 * The number of credits on the VLs may be changed while everything 11385 * is "live", but the following algorithm must be followed due to 11386 * how the hardware is actually implemented. In particular, 11387 * Return_Credit_Status[] is the only correct status check. 11388 * 11389 * if (reducing Global_Shared_Credit_Limit or any shared limit changing) 11390 * set Global_Shared_Credit_Limit = 0 11391 * use_all_vl = 1 11392 * mask0 = all VLs that are changing either dedicated or shared limits 11393 * set Shared_Limit[mask0] = 0 11394 * spin until Return_Credit_Status[use_all_vl ? all VL : mask0] == 0 11395 * if (changing any dedicated limit) 11396 * mask1 = all VLs that are lowering dedicated limits 11397 * lower Dedicated_Limit[mask1] 11398 * spin until Return_Credit_Status[mask1] == 0 11399 * raise Dedicated_Limits 11400 * raise Shared_Limits 11401 * raise Global_Shared_Credit_Limit 11402 * 11403 * lower = if the new limit is lower, set the limit to the new value 11404 * raise = if the new limit is higher than the current value (may be changed 11405 * earlier in the algorithm), set the new limit to the new value 11406 */ 11407 int set_buffer_control(struct hfi1_pportdata *ppd, 11408 struct buffer_control *new_bc) 11409 { 11410 struct hfi1_devdata *dd = ppd->dd; 11411 u64 changing_mask, ld_mask, stat_mask; 11412 int change_count; 11413 int i, use_all_mask; 11414 int this_shared_changing; 11415 int vl_count = 0, ret; 11416 /* 11417 * A0: add the variable any_shared_limit_changing below and in the 11418 * algorithm above. If removing A0 support, it can be removed. 11419 */ 11420 int any_shared_limit_changing; 11421 struct buffer_control cur_bc; 11422 u8 changing[OPA_MAX_VLS]; 11423 u8 lowering_dedicated[OPA_MAX_VLS]; 11424 u16 cur_total; 11425 u32 new_total = 0; 11426 const u64 all_mask = 11427 SEND_CM_CREDIT_USED_STATUS_VL0_RETURN_CREDIT_STATUS_SMASK 11428 | SEND_CM_CREDIT_USED_STATUS_VL1_RETURN_CREDIT_STATUS_SMASK 11429 | SEND_CM_CREDIT_USED_STATUS_VL2_RETURN_CREDIT_STATUS_SMASK 11430 | SEND_CM_CREDIT_USED_STATUS_VL3_RETURN_CREDIT_STATUS_SMASK 11431 | SEND_CM_CREDIT_USED_STATUS_VL4_RETURN_CREDIT_STATUS_SMASK 11432 | SEND_CM_CREDIT_USED_STATUS_VL5_RETURN_CREDIT_STATUS_SMASK 11433 | SEND_CM_CREDIT_USED_STATUS_VL6_RETURN_CREDIT_STATUS_SMASK 11434 | SEND_CM_CREDIT_USED_STATUS_VL7_RETURN_CREDIT_STATUS_SMASK 11435 | SEND_CM_CREDIT_USED_STATUS_VL15_RETURN_CREDIT_STATUS_SMASK; 11436 11437 #define valid_vl(idx) ((idx) < TXE_NUM_DATA_VL || (idx) == 15) 11438 #define NUM_USABLE_VLS 16 /* look at VL15 and less */ 11439 11440 /* find the new total credits, do sanity check on unused VLs */ 11441 for (i = 0; i < OPA_MAX_VLS; i++) { 11442 if (valid_vl(i)) { 11443 new_total += be16_to_cpu(new_bc->vl[i].dedicated); 11444 continue; 11445 } 11446 nonzero_msg(dd, i, "dedicated", 11447 be16_to_cpu(new_bc->vl[i].dedicated)); 11448 nonzero_msg(dd, i, "shared", 11449 be16_to_cpu(new_bc->vl[i].shared)); 11450 new_bc->vl[i].dedicated = 0; 11451 new_bc->vl[i].shared = 0; 11452 } 11453 new_total += be16_to_cpu(new_bc->overall_shared_limit); 11454 11455 /* fetch the current values */ 11456 get_buffer_control(dd, &cur_bc, &cur_total); 11457 11458 /* 11459 * Create the masks we will use. 11460 */ 11461 memset(changing, 0, sizeof(changing)); 11462 memset(lowering_dedicated, 0, sizeof(lowering_dedicated)); 11463 /* 11464 * NOTE: Assumes that the individual VL bits are adjacent and in 11465 * increasing order 11466 */ 11467 stat_mask = 11468 SEND_CM_CREDIT_USED_STATUS_VL0_RETURN_CREDIT_STATUS_SMASK; 11469 changing_mask = 0; 11470 ld_mask = 0; 11471 change_count = 0; 11472 any_shared_limit_changing = 0; 11473 for (i = 0; i < NUM_USABLE_VLS; i++, stat_mask <<= 1) { 11474 if (!valid_vl(i)) 11475 continue; 11476 this_shared_changing = new_bc->vl[i].shared 11477 != cur_bc.vl[i].shared; 11478 if (this_shared_changing) 11479 any_shared_limit_changing = 1; 11480 if (new_bc->vl[i].dedicated != cur_bc.vl[i].dedicated || 11481 this_shared_changing) { 11482 changing[i] = 1; 11483 changing_mask |= stat_mask; 11484 change_count++; 11485 } 11486 if (be16_to_cpu(new_bc->vl[i].dedicated) < 11487 be16_to_cpu(cur_bc.vl[i].dedicated)) { 11488 lowering_dedicated[i] = 1; 11489 ld_mask |= stat_mask; 11490 } 11491 } 11492 11493 /* bracket the credit change with a total adjustment */ 11494 if (new_total > cur_total) 11495 set_global_limit(dd, new_total); 11496 11497 /* 11498 * Start the credit change algorithm. 11499 */ 11500 use_all_mask = 0; 11501 if ((be16_to_cpu(new_bc->overall_shared_limit) < 11502 be16_to_cpu(cur_bc.overall_shared_limit)) || 11503 (is_ax(dd) && any_shared_limit_changing)) { 11504 set_global_shared(dd, 0); 11505 cur_bc.overall_shared_limit = 0; 11506 use_all_mask = 1; 11507 } 11508 11509 for (i = 0; i < NUM_USABLE_VLS; i++) { 11510 if (!valid_vl(i)) 11511 continue; 11512 11513 if (changing[i]) { 11514 set_vl_shared(dd, i, 0); 11515 cur_bc.vl[i].shared = 0; 11516 } 11517 } 11518 11519 wait_for_vl_status_clear(dd, use_all_mask ? all_mask : changing_mask, 11520 "shared"); 11521 11522 if (change_count > 0) { 11523 for (i = 0; i < NUM_USABLE_VLS; i++) { 11524 if (!valid_vl(i)) 11525 continue; 11526 11527 if (lowering_dedicated[i]) { 11528 set_vl_dedicated(dd, i, 11529 be16_to_cpu(new_bc-> 11530 vl[i].dedicated)); 11531 cur_bc.vl[i].dedicated = 11532 new_bc->vl[i].dedicated; 11533 } 11534 } 11535 11536 wait_for_vl_status_clear(dd, ld_mask, "dedicated"); 11537 11538 /* now raise all dedicated that are going up */ 11539 for (i = 0; i < NUM_USABLE_VLS; i++) { 11540 if (!valid_vl(i)) 11541 continue; 11542 11543 if (be16_to_cpu(new_bc->vl[i].dedicated) > 11544 be16_to_cpu(cur_bc.vl[i].dedicated)) 11545 set_vl_dedicated(dd, i, 11546 be16_to_cpu(new_bc-> 11547 vl[i].dedicated)); 11548 } 11549 } 11550 11551 /* next raise all shared that are going up */ 11552 for (i = 0; i < NUM_USABLE_VLS; i++) { 11553 if (!valid_vl(i)) 11554 continue; 11555 11556 if (be16_to_cpu(new_bc->vl[i].shared) > 11557 be16_to_cpu(cur_bc.vl[i].shared)) 11558 set_vl_shared(dd, i, be16_to_cpu(new_bc->vl[i].shared)); 11559 } 11560 11561 /* finally raise the global shared */ 11562 if (be16_to_cpu(new_bc->overall_shared_limit) > 11563 be16_to_cpu(cur_bc.overall_shared_limit)) 11564 set_global_shared(dd, 11565 be16_to_cpu(new_bc->overall_shared_limit)); 11566 11567 /* bracket the credit change with a total adjustment */ 11568 if (new_total < cur_total) 11569 set_global_limit(dd, new_total); 11570 11571 /* 11572 * Determine the actual number of operational VLS using the number of 11573 * dedicated and shared credits for each VL. 11574 */ 11575 if (change_count > 0) { 11576 for (i = 0; i < TXE_NUM_DATA_VL; i++) 11577 if (be16_to_cpu(new_bc->vl[i].dedicated) > 0 || 11578 be16_to_cpu(new_bc->vl[i].shared) > 0) 11579 vl_count++; 11580 ppd->actual_vls_operational = vl_count; 11581 ret = sdma_map_init(dd, ppd->port - 1, vl_count ? 11582 ppd->actual_vls_operational : 11583 ppd->vls_operational, 11584 NULL); 11585 if (ret == 0) 11586 ret = pio_map_init(dd, ppd->port - 1, vl_count ? 11587 ppd->actual_vls_operational : 11588 ppd->vls_operational, NULL); 11589 if (ret) 11590 return ret; 11591 } 11592 return 0; 11593 } 11594 11595 /* 11596 * Read the given fabric manager table. Return the size of the 11597 * table (in bytes) on success, and a negative error code on 11598 * failure. 11599 */ 11600 int fm_get_table(struct hfi1_pportdata *ppd, int which, void *t) 11601 11602 { 11603 int size; 11604 struct vl_arb_cache *vlc; 11605 11606 switch (which) { 11607 case FM_TBL_VL_HIGH_ARB: 11608 size = 256; 11609 /* 11610 * OPA specifies 128 elements (of 2 bytes each), though 11611 * HFI supports only 16 elements in h/w. 11612 */ 11613 vlc = vl_arb_lock_cache(ppd, HI_PRIO_TABLE); 11614 vl_arb_get_cache(vlc, t); 11615 vl_arb_unlock_cache(ppd, HI_PRIO_TABLE); 11616 break; 11617 case FM_TBL_VL_LOW_ARB: 11618 size = 256; 11619 /* 11620 * OPA specifies 128 elements (of 2 bytes each), though 11621 * HFI supports only 16 elements in h/w. 11622 */ 11623 vlc = vl_arb_lock_cache(ppd, LO_PRIO_TABLE); 11624 vl_arb_get_cache(vlc, t); 11625 vl_arb_unlock_cache(ppd, LO_PRIO_TABLE); 11626 break; 11627 case FM_TBL_BUFFER_CONTROL: 11628 size = get_buffer_control(ppd->dd, t, NULL); 11629 break; 11630 case FM_TBL_SC2VLNT: 11631 size = get_sc2vlnt(ppd->dd, t); 11632 break; 11633 case FM_TBL_VL_PREEMPT_ELEMS: 11634 size = 256; 11635 /* OPA specifies 128 elements, of 2 bytes each */ 11636 get_vlarb_preempt(ppd->dd, OPA_MAX_VLS, t); 11637 break; 11638 case FM_TBL_VL_PREEMPT_MATRIX: 11639 size = 256; 11640 /* 11641 * OPA specifies that this is the same size as the VL 11642 * arbitration tables (i.e., 256 bytes). 11643 */ 11644 break; 11645 default: 11646 return -EINVAL; 11647 } 11648 return size; 11649 } 11650 11651 /* 11652 * Write the given fabric manager table. 11653 */ 11654 int fm_set_table(struct hfi1_pportdata *ppd, int which, void *t) 11655 { 11656 int ret = 0; 11657 struct vl_arb_cache *vlc; 11658 11659 switch (which) { 11660 case FM_TBL_VL_HIGH_ARB: 11661 vlc = vl_arb_lock_cache(ppd, HI_PRIO_TABLE); 11662 if (vl_arb_match_cache(vlc, t)) { 11663 vl_arb_unlock_cache(ppd, HI_PRIO_TABLE); 11664 break; 11665 } 11666 vl_arb_set_cache(vlc, t); 11667 vl_arb_unlock_cache(ppd, HI_PRIO_TABLE); 11668 ret = set_vl_weights(ppd, SEND_HIGH_PRIORITY_LIST, 11669 VL_ARB_HIGH_PRIO_TABLE_SIZE, t); 11670 break; 11671 case FM_TBL_VL_LOW_ARB: 11672 vlc = vl_arb_lock_cache(ppd, LO_PRIO_TABLE); 11673 if (vl_arb_match_cache(vlc, t)) { 11674 vl_arb_unlock_cache(ppd, LO_PRIO_TABLE); 11675 break; 11676 } 11677 vl_arb_set_cache(vlc, t); 11678 vl_arb_unlock_cache(ppd, LO_PRIO_TABLE); 11679 ret = set_vl_weights(ppd, SEND_LOW_PRIORITY_LIST, 11680 VL_ARB_LOW_PRIO_TABLE_SIZE, t); 11681 break; 11682 case FM_TBL_BUFFER_CONTROL: 11683 ret = set_buffer_control(ppd, t); 11684 break; 11685 case FM_TBL_SC2VLNT: 11686 set_sc2vlnt(ppd->dd, t); 11687 break; 11688 default: 11689 ret = -EINVAL; 11690 } 11691 return ret; 11692 } 11693 11694 /* 11695 * Disable all data VLs. 11696 * 11697 * Return 0 if disabled, non-zero if the VLs cannot be disabled. 11698 */ 11699 static int disable_data_vls(struct hfi1_devdata *dd) 11700 { 11701 if (is_ax(dd)) 11702 return 1; 11703 11704 pio_send_control(dd, PSC_DATA_VL_DISABLE); 11705 11706 return 0; 11707 } 11708 11709 /* 11710 * open_fill_data_vls() - the counterpart to stop_drain_data_vls(). 11711 * Just re-enables all data VLs (the "fill" part happens 11712 * automatically - the name was chosen for symmetry with 11713 * stop_drain_data_vls()). 11714 * 11715 * Return 0 if successful, non-zero if the VLs cannot be enabled. 11716 */ 11717 int open_fill_data_vls(struct hfi1_devdata *dd) 11718 { 11719 if (is_ax(dd)) 11720 return 1; 11721 11722 pio_send_control(dd, PSC_DATA_VL_ENABLE); 11723 11724 return 0; 11725 } 11726 11727 /* 11728 * drain_data_vls() - assumes that disable_data_vls() has been called, 11729 * wait for occupancy (of per-VL FIFOs) for all contexts, and SDMA 11730 * engines to drop to 0. 11731 */ 11732 static void drain_data_vls(struct hfi1_devdata *dd) 11733 { 11734 sc_wait(dd); 11735 sdma_wait(dd); 11736 pause_for_credit_return(dd); 11737 } 11738 11739 /* 11740 * stop_drain_data_vls() - disable, then drain all per-VL fifos. 11741 * 11742 * Use open_fill_data_vls() to resume using data VLs. This pair is 11743 * meant to be used like this: 11744 * 11745 * stop_drain_data_vls(dd); 11746 * // do things with per-VL resources 11747 * open_fill_data_vls(dd); 11748 */ 11749 int stop_drain_data_vls(struct hfi1_devdata *dd) 11750 { 11751 int ret; 11752 11753 ret = disable_data_vls(dd); 11754 if (ret == 0) 11755 drain_data_vls(dd); 11756 11757 return ret; 11758 } 11759 11760 /* 11761 * Convert a nanosecond time to a cclock count. No matter how slow 11762 * the cclock, a non-zero ns will always have a non-zero result. 11763 */ 11764 u32 ns_to_cclock(struct hfi1_devdata *dd, u32 ns) 11765 { 11766 u32 cclocks; 11767 11768 if (dd->icode == ICODE_FPGA_EMULATION) 11769 cclocks = (ns * 1000) / FPGA_CCLOCK_PS; 11770 else /* simulation pretends to be ASIC */ 11771 cclocks = (ns * 1000) / ASIC_CCLOCK_PS; 11772 if (ns && !cclocks) /* if ns nonzero, must be at least 1 */ 11773 cclocks = 1; 11774 return cclocks; 11775 } 11776 11777 /* 11778 * Convert a cclock count to nanoseconds. Not matter how slow 11779 * the cclock, a non-zero cclocks will always have a non-zero result. 11780 */ 11781 u32 cclock_to_ns(struct hfi1_devdata *dd, u32 cclocks) 11782 { 11783 u32 ns; 11784 11785 if (dd->icode == ICODE_FPGA_EMULATION) 11786 ns = (cclocks * FPGA_CCLOCK_PS) / 1000; 11787 else /* simulation pretends to be ASIC */ 11788 ns = (cclocks * ASIC_CCLOCK_PS) / 1000; 11789 if (cclocks && !ns) 11790 ns = 1; 11791 return ns; 11792 } 11793 11794 /* 11795 * Dynamically adjust the receive interrupt timeout for a context based on 11796 * incoming packet rate. 11797 * 11798 * NOTE: Dynamic adjustment does not allow rcv_intr_count to be zero. 11799 */ 11800 static void adjust_rcv_timeout(struct hfi1_ctxtdata *rcd, u32 npkts) 11801 { 11802 struct hfi1_devdata *dd = rcd->dd; 11803 u32 timeout = rcd->rcvavail_timeout; 11804 11805 /* 11806 * This algorithm doubles or halves the timeout depending on whether 11807 * the number of packets received in this interrupt were less than or 11808 * greater equal the interrupt count. 11809 * 11810 * The calculations below do not allow a steady state to be achieved. 11811 * Only at the endpoints it is possible to have an unchanging 11812 * timeout. 11813 */ 11814 if (npkts < rcv_intr_count) { 11815 /* 11816 * Not enough packets arrived before the timeout, adjust 11817 * timeout downward. 11818 */ 11819 if (timeout < 2) /* already at minimum? */ 11820 return; 11821 timeout >>= 1; 11822 } else { 11823 /* 11824 * More than enough packets arrived before the timeout, adjust 11825 * timeout upward. 11826 */ 11827 if (timeout >= dd->rcv_intr_timeout_csr) /* already at max? */ 11828 return; 11829 timeout = min(timeout << 1, dd->rcv_intr_timeout_csr); 11830 } 11831 11832 rcd->rcvavail_timeout = timeout; 11833 /* 11834 * timeout cannot be larger than rcv_intr_timeout_csr which has already 11835 * been verified to be in range 11836 */ 11837 write_kctxt_csr(dd, rcd->ctxt, RCV_AVAIL_TIME_OUT, 11838 (u64)timeout << 11839 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_SHIFT); 11840 } 11841 11842 void update_usrhead(struct hfi1_ctxtdata *rcd, u32 hd, u32 updegr, u32 egrhd, 11843 u32 intr_adjust, u32 npkts) 11844 { 11845 struct hfi1_devdata *dd = rcd->dd; 11846 u64 reg; 11847 u32 ctxt = rcd->ctxt; 11848 11849 /* 11850 * Need to write timeout register before updating RcvHdrHead to ensure 11851 * that a new value is used when the HW decides to restart counting. 11852 */ 11853 if (intr_adjust) 11854 adjust_rcv_timeout(rcd, npkts); 11855 if (updegr) { 11856 reg = (egrhd & RCV_EGR_INDEX_HEAD_HEAD_MASK) 11857 << RCV_EGR_INDEX_HEAD_HEAD_SHIFT; 11858 write_uctxt_csr(dd, ctxt, RCV_EGR_INDEX_HEAD, reg); 11859 } 11860 reg = ((u64)rcv_intr_count << RCV_HDR_HEAD_COUNTER_SHIFT) | 11861 (((u64)hd & RCV_HDR_HEAD_HEAD_MASK) 11862 << RCV_HDR_HEAD_HEAD_SHIFT); 11863 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, reg); 11864 } 11865 11866 u32 hdrqempty(struct hfi1_ctxtdata *rcd) 11867 { 11868 u32 head, tail; 11869 11870 head = (read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_HEAD) 11871 & RCV_HDR_HEAD_HEAD_SMASK) >> RCV_HDR_HEAD_HEAD_SHIFT; 11872 11873 if (hfi1_rcvhdrtail_kvaddr(rcd)) 11874 tail = get_rcvhdrtail(rcd); 11875 else 11876 tail = read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_TAIL); 11877 11878 return head == tail; 11879 } 11880 11881 /* 11882 * Context Control and Receive Array encoding for buffer size: 11883 * 0x0 invalid 11884 * 0x1 4 KB 11885 * 0x2 8 KB 11886 * 0x3 16 KB 11887 * 0x4 32 KB 11888 * 0x5 64 KB 11889 * 0x6 128 KB 11890 * 0x7 256 KB 11891 * 0x8 512 KB (Receive Array only) 11892 * 0x9 1 MB (Receive Array only) 11893 * 0xa 2 MB (Receive Array only) 11894 * 11895 * 0xB-0xF - reserved (Receive Array only) 11896 * 11897 * 11898 * This routine assumes that the value has already been sanity checked. 11899 */ 11900 static u32 encoded_size(u32 size) 11901 { 11902 switch (size) { 11903 case 4 * 1024: return 0x1; 11904 case 8 * 1024: return 0x2; 11905 case 16 * 1024: return 0x3; 11906 case 32 * 1024: return 0x4; 11907 case 64 * 1024: return 0x5; 11908 case 128 * 1024: return 0x6; 11909 case 256 * 1024: return 0x7; 11910 case 512 * 1024: return 0x8; 11911 case 1 * 1024 * 1024: return 0x9; 11912 case 2 * 1024 * 1024: return 0xa; 11913 } 11914 return 0x1; /* if invalid, go with the minimum size */ 11915 } 11916 11917 /** 11918 * encode_rcv_header_entry_size - return chip specific encoding for size 11919 * @size: size in dwords 11920 * 11921 * Convert a receive header entry size that to the encoding used in the CSR. 11922 * 11923 * Return a zero if the given size is invalid, otherwise the encoding. 11924 */ 11925 u8 encode_rcv_header_entry_size(u8 size) 11926 { 11927 /* there are only 3 valid receive header entry sizes */ 11928 if (size == 2) 11929 return 1; 11930 if (size == 16) 11931 return 2; 11932 if (size == 32) 11933 return 4; 11934 return 0; /* invalid */ 11935 } 11936 11937 /** 11938 * hfi1_validate_rcvhdrcnt - validate hdrcnt 11939 * @dd: the device data 11940 * @thecnt: the header count 11941 */ 11942 int hfi1_validate_rcvhdrcnt(struct hfi1_devdata *dd, uint thecnt) 11943 { 11944 if (thecnt <= HFI1_MIN_HDRQ_EGRBUF_CNT) { 11945 dd_dev_err(dd, "Receive header queue count too small\n"); 11946 return -EINVAL; 11947 } 11948 11949 if (thecnt > HFI1_MAX_HDRQ_EGRBUF_CNT) { 11950 dd_dev_err(dd, 11951 "Receive header queue count cannot be greater than %u\n", 11952 HFI1_MAX_HDRQ_EGRBUF_CNT); 11953 return -EINVAL; 11954 } 11955 11956 if (thecnt % HDRQ_INCREMENT) { 11957 dd_dev_err(dd, "Receive header queue count %d must be divisible by %lu\n", 11958 thecnt, HDRQ_INCREMENT); 11959 return -EINVAL; 11960 } 11961 11962 return 0; 11963 } 11964 11965 /** 11966 * set_hdrq_regs - set header queue registers for context 11967 * @dd: the device data 11968 * @ctxt: the context 11969 * @entsize: the dword entry size 11970 * @hdrcnt: the number of header entries 11971 */ 11972 void set_hdrq_regs(struct hfi1_devdata *dd, u8 ctxt, u8 entsize, u16 hdrcnt) 11973 { 11974 u64 reg; 11975 11976 reg = (((u64)hdrcnt >> HDRQ_SIZE_SHIFT) & RCV_HDR_CNT_CNT_MASK) << 11977 RCV_HDR_CNT_CNT_SHIFT; 11978 write_kctxt_csr(dd, ctxt, RCV_HDR_CNT, reg); 11979 reg = ((u64)encode_rcv_header_entry_size(entsize) & 11980 RCV_HDR_ENT_SIZE_ENT_SIZE_MASK) << 11981 RCV_HDR_ENT_SIZE_ENT_SIZE_SHIFT; 11982 write_kctxt_csr(dd, ctxt, RCV_HDR_ENT_SIZE, reg); 11983 reg = ((u64)DEFAULT_RCVHDRSIZE & RCV_HDR_SIZE_HDR_SIZE_MASK) << 11984 RCV_HDR_SIZE_HDR_SIZE_SHIFT; 11985 write_kctxt_csr(dd, ctxt, RCV_HDR_SIZE, reg); 11986 11987 /* 11988 * Program dummy tail address for every receive context 11989 * before enabling any receive context 11990 */ 11991 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 11992 dd->rcvhdrtail_dummy_dma); 11993 } 11994 11995 void hfi1_rcvctrl(struct hfi1_devdata *dd, unsigned int op, 11996 struct hfi1_ctxtdata *rcd) 11997 { 11998 u64 rcvctrl, reg; 11999 int did_enable = 0; 12000 u16 ctxt; 12001 12002 if (!rcd) 12003 return; 12004 12005 ctxt = rcd->ctxt; 12006 12007 hfi1_cdbg(RCVCTRL, "ctxt %d op 0x%x", ctxt, op); 12008 12009 rcvctrl = read_kctxt_csr(dd, ctxt, RCV_CTXT_CTRL); 12010 /* if the context already enabled, don't do the extra steps */ 12011 if ((op & HFI1_RCVCTRL_CTXT_ENB) && 12012 !(rcvctrl & RCV_CTXT_CTRL_ENABLE_SMASK)) { 12013 /* reset the tail and hdr addresses, and sequence count */ 12014 write_kctxt_csr(dd, ctxt, RCV_HDR_ADDR, 12015 rcd->rcvhdrq_dma); 12016 if (hfi1_rcvhdrtail_kvaddr(rcd)) 12017 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 12018 rcd->rcvhdrqtailaddr_dma); 12019 hfi1_set_seq_cnt(rcd, 1); 12020 12021 /* reset the cached receive header queue head value */ 12022 hfi1_set_rcd_head(rcd, 0); 12023 12024 /* 12025 * Zero the receive header queue so we don't get false 12026 * positives when checking the sequence number. The 12027 * sequence numbers could land exactly on the same spot. 12028 * E.g. a rcd restart before the receive header wrapped. 12029 */ 12030 memset(rcd->rcvhdrq, 0, rcvhdrq_size(rcd)); 12031 12032 /* starting timeout */ 12033 rcd->rcvavail_timeout = dd->rcv_intr_timeout_csr; 12034 12035 /* enable the context */ 12036 rcvctrl |= RCV_CTXT_CTRL_ENABLE_SMASK; 12037 12038 /* clean the egr buffer size first */ 12039 rcvctrl &= ~RCV_CTXT_CTRL_EGR_BUF_SIZE_SMASK; 12040 rcvctrl |= ((u64)encoded_size(rcd->egrbufs.rcvtid_size) 12041 & RCV_CTXT_CTRL_EGR_BUF_SIZE_MASK) 12042 << RCV_CTXT_CTRL_EGR_BUF_SIZE_SHIFT; 12043 12044 /* zero RcvHdrHead - set RcvHdrHead.Counter after enable */ 12045 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, 0); 12046 did_enable = 1; 12047 12048 /* zero RcvEgrIndexHead */ 12049 write_uctxt_csr(dd, ctxt, RCV_EGR_INDEX_HEAD, 0); 12050 12051 /* set eager count and base index */ 12052 reg = (((u64)(rcd->egrbufs.alloced >> RCV_SHIFT) 12053 & RCV_EGR_CTRL_EGR_CNT_MASK) 12054 << RCV_EGR_CTRL_EGR_CNT_SHIFT) | 12055 (((rcd->eager_base >> RCV_SHIFT) 12056 & RCV_EGR_CTRL_EGR_BASE_INDEX_MASK) 12057 << RCV_EGR_CTRL_EGR_BASE_INDEX_SHIFT); 12058 write_kctxt_csr(dd, ctxt, RCV_EGR_CTRL, reg); 12059 12060 /* 12061 * Set TID (expected) count and base index. 12062 * rcd->expected_count is set to individual RcvArray entries, 12063 * not pairs, and the CSR takes a pair-count in groups of 12064 * four, so divide by 8. 12065 */ 12066 reg = (((rcd->expected_count >> RCV_SHIFT) 12067 & RCV_TID_CTRL_TID_PAIR_CNT_MASK) 12068 << RCV_TID_CTRL_TID_PAIR_CNT_SHIFT) | 12069 (((rcd->expected_base >> RCV_SHIFT) 12070 & RCV_TID_CTRL_TID_BASE_INDEX_MASK) 12071 << RCV_TID_CTRL_TID_BASE_INDEX_SHIFT); 12072 write_kctxt_csr(dd, ctxt, RCV_TID_CTRL, reg); 12073 if (ctxt == HFI1_CTRL_CTXT) 12074 write_csr(dd, RCV_VL15, HFI1_CTRL_CTXT); 12075 } 12076 if (op & HFI1_RCVCTRL_CTXT_DIS) { 12077 write_csr(dd, RCV_VL15, 0); 12078 /* 12079 * When receive context is being disabled turn on tail 12080 * update with a dummy tail address and then disable 12081 * receive context. 12082 */ 12083 if (dd->rcvhdrtail_dummy_dma) { 12084 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 12085 dd->rcvhdrtail_dummy_dma); 12086 /* Enabling RcvCtxtCtrl.TailUpd is intentional. */ 12087 rcvctrl |= RCV_CTXT_CTRL_TAIL_UPD_SMASK; 12088 } 12089 12090 rcvctrl &= ~RCV_CTXT_CTRL_ENABLE_SMASK; 12091 } 12092 if (op & HFI1_RCVCTRL_INTRAVAIL_ENB) { 12093 set_intr_bits(dd, IS_RCVAVAIL_START + rcd->ctxt, 12094 IS_RCVAVAIL_START + rcd->ctxt, true); 12095 rcvctrl |= RCV_CTXT_CTRL_INTR_AVAIL_SMASK; 12096 } 12097 if (op & HFI1_RCVCTRL_INTRAVAIL_DIS) { 12098 set_intr_bits(dd, IS_RCVAVAIL_START + rcd->ctxt, 12099 IS_RCVAVAIL_START + rcd->ctxt, false); 12100 rcvctrl &= ~RCV_CTXT_CTRL_INTR_AVAIL_SMASK; 12101 } 12102 if ((op & HFI1_RCVCTRL_TAILUPD_ENB) && hfi1_rcvhdrtail_kvaddr(rcd)) 12103 rcvctrl |= RCV_CTXT_CTRL_TAIL_UPD_SMASK; 12104 if (op & HFI1_RCVCTRL_TAILUPD_DIS) { 12105 /* See comment on RcvCtxtCtrl.TailUpd above */ 12106 if (!(op & HFI1_RCVCTRL_CTXT_DIS)) 12107 rcvctrl &= ~RCV_CTXT_CTRL_TAIL_UPD_SMASK; 12108 } 12109 if (op & HFI1_RCVCTRL_TIDFLOW_ENB) 12110 rcvctrl |= RCV_CTXT_CTRL_TID_FLOW_ENABLE_SMASK; 12111 if (op & HFI1_RCVCTRL_TIDFLOW_DIS) 12112 rcvctrl &= ~RCV_CTXT_CTRL_TID_FLOW_ENABLE_SMASK; 12113 if (op & HFI1_RCVCTRL_ONE_PKT_EGR_ENB) { 12114 /* 12115 * In one-packet-per-eager mode, the size comes from 12116 * the RcvArray entry. 12117 */ 12118 rcvctrl &= ~RCV_CTXT_CTRL_EGR_BUF_SIZE_SMASK; 12119 rcvctrl |= RCV_CTXT_CTRL_ONE_PACKET_PER_EGR_BUFFER_SMASK; 12120 } 12121 if (op & HFI1_RCVCTRL_ONE_PKT_EGR_DIS) 12122 rcvctrl &= ~RCV_CTXT_CTRL_ONE_PACKET_PER_EGR_BUFFER_SMASK; 12123 if (op & HFI1_RCVCTRL_NO_RHQ_DROP_ENB) 12124 rcvctrl |= RCV_CTXT_CTRL_DONT_DROP_RHQ_FULL_SMASK; 12125 if (op & HFI1_RCVCTRL_NO_RHQ_DROP_DIS) 12126 rcvctrl &= ~RCV_CTXT_CTRL_DONT_DROP_RHQ_FULL_SMASK; 12127 if (op & HFI1_RCVCTRL_NO_EGR_DROP_ENB) 12128 rcvctrl |= RCV_CTXT_CTRL_DONT_DROP_EGR_FULL_SMASK; 12129 if (op & HFI1_RCVCTRL_NO_EGR_DROP_DIS) 12130 rcvctrl &= ~RCV_CTXT_CTRL_DONT_DROP_EGR_FULL_SMASK; 12131 if (op & HFI1_RCVCTRL_URGENT_ENB) 12132 set_intr_bits(dd, IS_RCVURGENT_START + rcd->ctxt, 12133 IS_RCVURGENT_START + rcd->ctxt, true); 12134 if (op & HFI1_RCVCTRL_URGENT_DIS) 12135 set_intr_bits(dd, IS_RCVURGENT_START + rcd->ctxt, 12136 IS_RCVURGENT_START + rcd->ctxt, false); 12137 12138 hfi1_cdbg(RCVCTRL, "ctxt %d rcvctrl 0x%llx\n", ctxt, rcvctrl); 12139 write_kctxt_csr(dd, ctxt, RCV_CTXT_CTRL, rcvctrl); 12140 12141 /* work around sticky RcvCtxtStatus.BlockedRHQFull */ 12142 if (did_enable && 12143 (rcvctrl & RCV_CTXT_CTRL_DONT_DROP_RHQ_FULL_SMASK)) { 12144 reg = read_kctxt_csr(dd, ctxt, RCV_CTXT_STATUS); 12145 if (reg != 0) { 12146 dd_dev_info(dd, "ctxt %d status %lld (blocked)\n", 12147 ctxt, reg); 12148 read_uctxt_csr(dd, ctxt, RCV_HDR_HEAD); 12149 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, 0x10); 12150 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, 0x00); 12151 read_uctxt_csr(dd, ctxt, RCV_HDR_HEAD); 12152 reg = read_kctxt_csr(dd, ctxt, RCV_CTXT_STATUS); 12153 dd_dev_info(dd, "ctxt %d status %lld (%s blocked)\n", 12154 ctxt, reg, reg == 0 ? "not" : "still"); 12155 } 12156 } 12157 12158 if (did_enable) { 12159 /* 12160 * The interrupt timeout and count must be set after 12161 * the context is enabled to take effect. 12162 */ 12163 /* set interrupt timeout */ 12164 write_kctxt_csr(dd, ctxt, RCV_AVAIL_TIME_OUT, 12165 (u64)rcd->rcvavail_timeout << 12166 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_SHIFT); 12167 12168 /* set RcvHdrHead.Counter, zero RcvHdrHead.Head (again) */ 12169 reg = (u64)rcv_intr_count << RCV_HDR_HEAD_COUNTER_SHIFT; 12170 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, reg); 12171 } 12172 12173 if (op & (HFI1_RCVCTRL_TAILUPD_DIS | HFI1_RCVCTRL_CTXT_DIS)) 12174 /* 12175 * If the context has been disabled and the Tail Update has 12176 * been cleared, set the RCV_HDR_TAIL_ADDR CSR to dummy address 12177 * so it doesn't contain an address that is invalid. 12178 */ 12179 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 12180 dd->rcvhdrtail_dummy_dma); 12181 } 12182 12183 u32 hfi1_read_cntrs(struct hfi1_devdata *dd, char **namep, u64 **cntrp) 12184 { 12185 int ret; 12186 u64 val = 0; 12187 12188 if (namep) { 12189 ret = dd->cntrnameslen; 12190 *namep = dd->cntrnames; 12191 } else { 12192 const struct cntr_entry *entry; 12193 int i, j; 12194 12195 ret = (dd->ndevcntrs) * sizeof(u64); 12196 12197 /* Get the start of the block of counters */ 12198 *cntrp = dd->cntrs; 12199 12200 /* 12201 * Now go and fill in each counter in the block. 12202 */ 12203 for (i = 0; i < DEV_CNTR_LAST; i++) { 12204 entry = &dev_cntrs[i]; 12205 hfi1_cdbg(CNTR, "reading %s", entry->name); 12206 if (entry->flags & CNTR_DISABLED) { 12207 /* Nothing */ 12208 hfi1_cdbg(CNTR, "\tDisabled\n"); 12209 } else { 12210 if (entry->flags & CNTR_VL) { 12211 hfi1_cdbg(CNTR, "\tPer VL\n"); 12212 for (j = 0; j < C_VL_COUNT; j++) { 12213 val = entry->rw_cntr(entry, 12214 dd, j, 12215 CNTR_MODE_R, 12216 0); 12217 hfi1_cdbg( 12218 CNTR, 12219 "\t\tRead 0x%llx for %d\n", 12220 val, j); 12221 dd->cntrs[entry->offset + j] = 12222 val; 12223 } 12224 } else if (entry->flags & CNTR_SDMA) { 12225 hfi1_cdbg(CNTR, 12226 "\t Per SDMA Engine\n"); 12227 for (j = 0; j < chip_sdma_engines(dd); 12228 j++) { 12229 val = 12230 entry->rw_cntr(entry, dd, j, 12231 CNTR_MODE_R, 0); 12232 hfi1_cdbg(CNTR, 12233 "\t\tRead 0x%llx for %d\n", 12234 val, j); 12235 dd->cntrs[entry->offset + j] = 12236 val; 12237 } 12238 } else { 12239 val = entry->rw_cntr(entry, dd, 12240 CNTR_INVALID_VL, 12241 CNTR_MODE_R, 0); 12242 dd->cntrs[entry->offset] = val; 12243 hfi1_cdbg(CNTR, "\tRead 0x%llx", val); 12244 } 12245 } 12246 } 12247 } 12248 return ret; 12249 } 12250 12251 /* 12252 * Used by sysfs to create files for hfi stats to read 12253 */ 12254 u32 hfi1_read_portcntrs(struct hfi1_pportdata *ppd, char **namep, u64 **cntrp) 12255 { 12256 int ret; 12257 u64 val = 0; 12258 12259 if (namep) { 12260 ret = ppd->dd->portcntrnameslen; 12261 *namep = ppd->dd->portcntrnames; 12262 } else { 12263 const struct cntr_entry *entry; 12264 int i, j; 12265 12266 ret = ppd->dd->nportcntrs * sizeof(u64); 12267 *cntrp = ppd->cntrs; 12268 12269 for (i = 0; i < PORT_CNTR_LAST; i++) { 12270 entry = &port_cntrs[i]; 12271 hfi1_cdbg(CNTR, "reading %s", entry->name); 12272 if (entry->flags & CNTR_DISABLED) { 12273 /* Nothing */ 12274 hfi1_cdbg(CNTR, "\tDisabled\n"); 12275 continue; 12276 } 12277 12278 if (entry->flags & CNTR_VL) { 12279 hfi1_cdbg(CNTR, "\tPer VL"); 12280 for (j = 0; j < C_VL_COUNT; j++) { 12281 val = entry->rw_cntr(entry, ppd, j, 12282 CNTR_MODE_R, 12283 0); 12284 hfi1_cdbg( 12285 CNTR, 12286 "\t\tRead 0x%llx for %d", 12287 val, j); 12288 ppd->cntrs[entry->offset + j] = val; 12289 } 12290 } else { 12291 val = entry->rw_cntr(entry, ppd, 12292 CNTR_INVALID_VL, 12293 CNTR_MODE_R, 12294 0); 12295 ppd->cntrs[entry->offset] = val; 12296 hfi1_cdbg(CNTR, "\tRead 0x%llx", val); 12297 } 12298 } 12299 } 12300 return ret; 12301 } 12302 12303 static void free_cntrs(struct hfi1_devdata *dd) 12304 { 12305 struct hfi1_pportdata *ppd; 12306 int i; 12307 12308 if (dd->synth_stats_timer.function) 12309 del_timer_sync(&dd->synth_stats_timer); 12310 ppd = (struct hfi1_pportdata *)(dd + 1); 12311 for (i = 0; i < dd->num_pports; i++, ppd++) { 12312 kfree(ppd->cntrs); 12313 kfree(ppd->scntrs); 12314 free_percpu(ppd->ibport_data.rvp.rc_acks); 12315 free_percpu(ppd->ibport_data.rvp.rc_qacks); 12316 free_percpu(ppd->ibport_data.rvp.rc_delayed_comp); 12317 ppd->cntrs = NULL; 12318 ppd->scntrs = NULL; 12319 ppd->ibport_data.rvp.rc_acks = NULL; 12320 ppd->ibport_data.rvp.rc_qacks = NULL; 12321 ppd->ibport_data.rvp.rc_delayed_comp = NULL; 12322 } 12323 kfree(dd->portcntrnames); 12324 dd->portcntrnames = NULL; 12325 kfree(dd->cntrs); 12326 dd->cntrs = NULL; 12327 kfree(dd->scntrs); 12328 dd->scntrs = NULL; 12329 kfree(dd->cntrnames); 12330 dd->cntrnames = NULL; 12331 if (dd->update_cntr_wq) { 12332 destroy_workqueue(dd->update_cntr_wq); 12333 dd->update_cntr_wq = NULL; 12334 } 12335 } 12336 12337 static u64 read_dev_port_cntr(struct hfi1_devdata *dd, struct cntr_entry *entry, 12338 u64 *psval, void *context, int vl) 12339 { 12340 u64 val; 12341 u64 sval = *psval; 12342 12343 if (entry->flags & CNTR_DISABLED) { 12344 dd_dev_err(dd, "Counter %s not enabled", entry->name); 12345 return 0; 12346 } 12347 12348 hfi1_cdbg(CNTR, "cntr: %s vl %d psval 0x%llx", entry->name, vl, *psval); 12349 12350 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_R, 0); 12351 12352 /* If its a synthetic counter there is more work we need to do */ 12353 if (entry->flags & CNTR_SYNTH) { 12354 if (sval == CNTR_MAX) { 12355 /* No need to read already saturated */ 12356 return CNTR_MAX; 12357 } 12358 12359 if (entry->flags & CNTR_32BIT) { 12360 /* 32bit counters can wrap multiple times */ 12361 u64 upper = sval >> 32; 12362 u64 lower = (sval << 32) >> 32; 12363 12364 if (lower > val) { /* hw wrapped */ 12365 if (upper == CNTR_32BIT_MAX) 12366 val = CNTR_MAX; 12367 else 12368 upper++; 12369 } 12370 12371 if (val != CNTR_MAX) 12372 val = (upper << 32) | val; 12373 12374 } else { 12375 /* If we rolled we are saturated */ 12376 if ((val < sval) || (val > CNTR_MAX)) 12377 val = CNTR_MAX; 12378 } 12379 } 12380 12381 *psval = val; 12382 12383 hfi1_cdbg(CNTR, "\tNew val=0x%llx", val); 12384 12385 return val; 12386 } 12387 12388 static u64 write_dev_port_cntr(struct hfi1_devdata *dd, 12389 struct cntr_entry *entry, 12390 u64 *psval, void *context, int vl, u64 data) 12391 { 12392 u64 val; 12393 12394 if (entry->flags & CNTR_DISABLED) { 12395 dd_dev_err(dd, "Counter %s not enabled", entry->name); 12396 return 0; 12397 } 12398 12399 hfi1_cdbg(CNTR, "cntr: %s vl %d psval 0x%llx", entry->name, vl, *psval); 12400 12401 if (entry->flags & CNTR_SYNTH) { 12402 *psval = data; 12403 if (entry->flags & CNTR_32BIT) { 12404 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_W, 12405 (data << 32) >> 32); 12406 val = data; /* return the full 64bit value */ 12407 } else { 12408 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_W, 12409 data); 12410 } 12411 } else { 12412 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_W, data); 12413 } 12414 12415 *psval = val; 12416 12417 hfi1_cdbg(CNTR, "\tNew val=0x%llx", val); 12418 12419 return val; 12420 } 12421 12422 u64 read_dev_cntr(struct hfi1_devdata *dd, int index, int vl) 12423 { 12424 struct cntr_entry *entry; 12425 u64 *sval; 12426 12427 entry = &dev_cntrs[index]; 12428 sval = dd->scntrs + entry->offset; 12429 12430 if (vl != CNTR_INVALID_VL) 12431 sval += vl; 12432 12433 return read_dev_port_cntr(dd, entry, sval, dd, vl); 12434 } 12435 12436 u64 write_dev_cntr(struct hfi1_devdata *dd, int index, int vl, u64 data) 12437 { 12438 struct cntr_entry *entry; 12439 u64 *sval; 12440 12441 entry = &dev_cntrs[index]; 12442 sval = dd->scntrs + entry->offset; 12443 12444 if (vl != CNTR_INVALID_VL) 12445 sval += vl; 12446 12447 return write_dev_port_cntr(dd, entry, sval, dd, vl, data); 12448 } 12449 12450 u64 read_port_cntr(struct hfi1_pportdata *ppd, int index, int vl) 12451 { 12452 struct cntr_entry *entry; 12453 u64 *sval; 12454 12455 entry = &port_cntrs[index]; 12456 sval = ppd->scntrs + entry->offset; 12457 12458 if (vl != CNTR_INVALID_VL) 12459 sval += vl; 12460 12461 if ((index >= C_RCV_HDR_OVF_FIRST + ppd->dd->num_rcv_contexts) && 12462 (index <= C_RCV_HDR_OVF_LAST)) { 12463 /* We do not want to bother for disabled contexts */ 12464 return 0; 12465 } 12466 12467 return read_dev_port_cntr(ppd->dd, entry, sval, ppd, vl); 12468 } 12469 12470 u64 write_port_cntr(struct hfi1_pportdata *ppd, int index, int vl, u64 data) 12471 { 12472 struct cntr_entry *entry; 12473 u64 *sval; 12474 12475 entry = &port_cntrs[index]; 12476 sval = ppd->scntrs + entry->offset; 12477 12478 if (vl != CNTR_INVALID_VL) 12479 sval += vl; 12480 12481 if ((index >= C_RCV_HDR_OVF_FIRST + ppd->dd->num_rcv_contexts) && 12482 (index <= C_RCV_HDR_OVF_LAST)) { 12483 /* We do not want to bother for disabled contexts */ 12484 return 0; 12485 } 12486 12487 return write_dev_port_cntr(ppd->dd, entry, sval, ppd, vl, data); 12488 } 12489 12490 static void do_update_synth_timer(struct work_struct *work) 12491 { 12492 u64 cur_tx; 12493 u64 cur_rx; 12494 u64 total_flits; 12495 u8 update = 0; 12496 int i, j, vl; 12497 struct hfi1_pportdata *ppd; 12498 struct cntr_entry *entry; 12499 struct hfi1_devdata *dd = container_of(work, struct hfi1_devdata, 12500 update_cntr_work); 12501 12502 /* 12503 * Rather than keep beating on the CSRs pick a minimal set that we can 12504 * check to watch for potential roll over. We can do this by looking at 12505 * the number of flits sent/recv. If the total flits exceeds 32bits then 12506 * we have to iterate all the counters and update. 12507 */ 12508 entry = &dev_cntrs[C_DC_RCV_FLITS]; 12509 cur_rx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, CNTR_MODE_R, 0); 12510 12511 entry = &dev_cntrs[C_DC_XMIT_FLITS]; 12512 cur_tx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, CNTR_MODE_R, 0); 12513 12514 hfi1_cdbg( 12515 CNTR, 12516 "[%d] curr tx=0x%llx rx=0x%llx :: last tx=0x%llx rx=0x%llx\n", 12517 dd->unit, cur_tx, cur_rx, dd->last_tx, dd->last_rx); 12518 12519 if ((cur_tx < dd->last_tx) || (cur_rx < dd->last_rx)) { 12520 /* 12521 * May not be strictly necessary to update but it won't hurt and 12522 * simplifies the logic here. 12523 */ 12524 update = 1; 12525 hfi1_cdbg(CNTR, "[%d] Tripwire counter rolled, updating", 12526 dd->unit); 12527 } else { 12528 total_flits = (cur_tx - dd->last_tx) + (cur_rx - dd->last_rx); 12529 hfi1_cdbg(CNTR, 12530 "[%d] total flits 0x%llx limit 0x%llx\n", dd->unit, 12531 total_flits, (u64)CNTR_32BIT_MAX); 12532 if (total_flits >= CNTR_32BIT_MAX) { 12533 hfi1_cdbg(CNTR, "[%d] 32bit limit hit, updating", 12534 dd->unit); 12535 update = 1; 12536 } 12537 } 12538 12539 if (update) { 12540 hfi1_cdbg(CNTR, "[%d] Updating dd and ppd counters", dd->unit); 12541 for (i = 0; i < DEV_CNTR_LAST; i++) { 12542 entry = &dev_cntrs[i]; 12543 if (entry->flags & CNTR_VL) { 12544 for (vl = 0; vl < C_VL_COUNT; vl++) 12545 read_dev_cntr(dd, i, vl); 12546 } else { 12547 read_dev_cntr(dd, i, CNTR_INVALID_VL); 12548 } 12549 } 12550 ppd = (struct hfi1_pportdata *)(dd + 1); 12551 for (i = 0; i < dd->num_pports; i++, ppd++) { 12552 for (j = 0; j < PORT_CNTR_LAST; j++) { 12553 entry = &port_cntrs[j]; 12554 if (entry->flags & CNTR_VL) { 12555 for (vl = 0; vl < C_VL_COUNT; vl++) 12556 read_port_cntr(ppd, j, vl); 12557 } else { 12558 read_port_cntr(ppd, j, CNTR_INVALID_VL); 12559 } 12560 } 12561 } 12562 12563 /* 12564 * We want the value in the register. The goal is to keep track 12565 * of the number of "ticks" not the counter value. In other 12566 * words if the register rolls we want to notice it and go ahead 12567 * and force an update. 12568 */ 12569 entry = &dev_cntrs[C_DC_XMIT_FLITS]; 12570 dd->last_tx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, 12571 CNTR_MODE_R, 0); 12572 12573 entry = &dev_cntrs[C_DC_RCV_FLITS]; 12574 dd->last_rx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, 12575 CNTR_MODE_R, 0); 12576 12577 hfi1_cdbg(CNTR, "[%d] setting last tx/rx to 0x%llx 0x%llx", 12578 dd->unit, dd->last_tx, dd->last_rx); 12579 12580 } else { 12581 hfi1_cdbg(CNTR, "[%d] No update necessary", dd->unit); 12582 } 12583 } 12584 12585 static void update_synth_timer(struct timer_list *t) 12586 { 12587 struct hfi1_devdata *dd = from_timer(dd, t, synth_stats_timer); 12588 12589 queue_work(dd->update_cntr_wq, &dd->update_cntr_work); 12590 mod_timer(&dd->synth_stats_timer, jiffies + HZ * SYNTH_CNT_TIME); 12591 } 12592 12593 #define C_MAX_NAME 16 /* 15 chars + one for /0 */ 12594 static int init_cntrs(struct hfi1_devdata *dd) 12595 { 12596 int i, rcv_ctxts, j; 12597 size_t sz; 12598 char *p; 12599 char name[C_MAX_NAME]; 12600 struct hfi1_pportdata *ppd; 12601 const char *bit_type_32 = ",32"; 12602 const int bit_type_32_sz = strlen(bit_type_32); 12603 u32 sdma_engines = chip_sdma_engines(dd); 12604 12605 /* set up the stats timer; the add_timer is done at the end */ 12606 timer_setup(&dd->synth_stats_timer, update_synth_timer, 0); 12607 12608 /***********************/ 12609 /* per device counters */ 12610 /***********************/ 12611 12612 /* size names and determine how many we have*/ 12613 dd->ndevcntrs = 0; 12614 sz = 0; 12615 12616 for (i = 0; i < DEV_CNTR_LAST; i++) { 12617 if (dev_cntrs[i].flags & CNTR_DISABLED) { 12618 hfi1_dbg_early("\tSkipping %s\n", dev_cntrs[i].name); 12619 continue; 12620 } 12621 12622 if (dev_cntrs[i].flags & CNTR_VL) { 12623 dev_cntrs[i].offset = dd->ndevcntrs; 12624 for (j = 0; j < C_VL_COUNT; j++) { 12625 snprintf(name, C_MAX_NAME, "%s%d", 12626 dev_cntrs[i].name, vl_from_idx(j)); 12627 sz += strlen(name); 12628 /* Add ",32" for 32-bit counters */ 12629 if (dev_cntrs[i].flags & CNTR_32BIT) 12630 sz += bit_type_32_sz; 12631 sz++; 12632 dd->ndevcntrs++; 12633 } 12634 } else if (dev_cntrs[i].flags & CNTR_SDMA) { 12635 dev_cntrs[i].offset = dd->ndevcntrs; 12636 for (j = 0; j < sdma_engines; j++) { 12637 snprintf(name, C_MAX_NAME, "%s%d", 12638 dev_cntrs[i].name, j); 12639 sz += strlen(name); 12640 /* Add ",32" for 32-bit counters */ 12641 if (dev_cntrs[i].flags & CNTR_32BIT) 12642 sz += bit_type_32_sz; 12643 sz++; 12644 dd->ndevcntrs++; 12645 } 12646 } else { 12647 /* +1 for newline. */ 12648 sz += strlen(dev_cntrs[i].name) + 1; 12649 /* Add ",32" for 32-bit counters */ 12650 if (dev_cntrs[i].flags & CNTR_32BIT) 12651 sz += bit_type_32_sz; 12652 dev_cntrs[i].offset = dd->ndevcntrs; 12653 dd->ndevcntrs++; 12654 } 12655 } 12656 12657 /* allocate space for the counter values */ 12658 dd->cntrs = kcalloc(dd->ndevcntrs + num_driver_cntrs, sizeof(u64), 12659 GFP_KERNEL); 12660 if (!dd->cntrs) 12661 goto bail; 12662 12663 dd->scntrs = kcalloc(dd->ndevcntrs, sizeof(u64), GFP_KERNEL); 12664 if (!dd->scntrs) 12665 goto bail; 12666 12667 /* allocate space for the counter names */ 12668 dd->cntrnameslen = sz; 12669 dd->cntrnames = kmalloc(sz, GFP_KERNEL); 12670 if (!dd->cntrnames) 12671 goto bail; 12672 12673 /* fill in the names */ 12674 for (p = dd->cntrnames, i = 0; i < DEV_CNTR_LAST; i++) { 12675 if (dev_cntrs[i].flags & CNTR_DISABLED) { 12676 /* Nothing */ 12677 } else if (dev_cntrs[i].flags & CNTR_VL) { 12678 for (j = 0; j < C_VL_COUNT; j++) { 12679 snprintf(name, C_MAX_NAME, "%s%d", 12680 dev_cntrs[i].name, 12681 vl_from_idx(j)); 12682 memcpy(p, name, strlen(name)); 12683 p += strlen(name); 12684 12685 /* Counter is 32 bits */ 12686 if (dev_cntrs[i].flags & CNTR_32BIT) { 12687 memcpy(p, bit_type_32, bit_type_32_sz); 12688 p += bit_type_32_sz; 12689 } 12690 12691 *p++ = '\n'; 12692 } 12693 } else if (dev_cntrs[i].flags & CNTR_SDMA) { 12694 for (j = 0; j < sdma_engines; j++) { 12695 snprintf(name, C_MAX_NAME, "%s%d", 12696 dev_cntrs[i].name, j); 12697 memcpy(p, name, strlen(name)); 12698 p += strlen(name); 12699 12700 /* Counter is 32 bits */ 12701 if (dev_cntrs[i].flags & CNTR_32BIT) { 12702 memcpy(p, bit_type_32, bit_type_32_sz); 12703 p += bit_type_32_sz; 12704 } 12705 12706 *p++ = '\n'; 12707 } 12708 } else { 12709 memcpy(p, dev_cntrs[i].name, strlen(dev_cntrs[i].name)); 12710 p += strlen(dev_cntrs[i].name); 12711 12712 /* Counter is 32 bits */ 12713 if (dev_cntrs[i].flags & CNTR_32BIT) { 12714 memcpy(p, bit_type_32, bit_type_32_sz); 12715 p += bit_type_32_sz; 12716 } 12717 12718 *p++ = '\n'; 12719 } 12720 } 12721 12722 /*********************/ 12723 /* per port counters */ 12724 /*********************/ 12725 12726 /* 12727 * Go through the counters for the overflows and disable the ones we 12728 * don't need. This varies based on platform so we need to do it 12729 * dynamically here. 12730 */ 12731 rcv_ctxts = dd->num_rcv_contexts; 12732 for (i = C_RCV_HDR_OVF_FIRST + rcv_ctxts; 12733 i <= C_RCV_HDR_OVF_LAST; i++) { 12734 port_cntrs[i].flags |= CNTR_DISABLED; 12735 } 12736 12737 /* size port counter names and determine how many we have*/ 12738 sz = 0; 12739 dd->nportcntrs = 0; 12740 for (i = 0; i < PORT_CNTR_LAST; i++) { 12741 if (port_cntrs[i].flags & CNTR_DISABLED) { 12742 hfi1_dbg_early("\tSkipping %s\n", port_cntrs[i].name); 12743 continue; 12744 } 12745 12746 if (port_cntrs[i].flags & CNTR_VL) { 12747 port_cntrs[i].offset = dd->nportcntrs; 12748 for (j = 0; j < C_VL_COUNT; j++) { 12749 snprintf(name, C_MAX_NAME, "%s%d", 12750 port_cntrs[i].name, vl_from_idx(j)); 12751 sz += strlen(name); 12752 /* Add ",32" for 32-bit counters */ 12753 if (port_cntrs[i].flags & CNTR_32BIT) 12754 sz += bit_type_32_sz; 12755 sz++; 12756 dd->nportcntrs++; 12757 } 12758 } else { 12759 /* +1 for newline */ 12760 sz += strlen(port_cntrs[i].name) + 1; 12761 /* Add ",32" for 32-bit counters */ 12762 if (port_cntrs[i].flags & CNTR_32BIT) 12763 sz += bit_type_32_sz; 12764 port_cntrs[i].offset = dd->nportcntrs; 12765 dd->nportcntrs++; 12766 } 12767 } 12768 12769 /* allocate space for the counter names */ 12770 dd->portcntrnameslen = sz; 12771 dd->portcntrnames = kmalloc(sz, GFP_KERNEL); 12772 if (!dd->portcntrnames) 12773 goto bail; 12774 12775 /* fill in port cntr names */ 12776 for (p = dd->portcntrnames, i = 0; i < PORT_CNTR_LAST; i++) { 12777 if (port_cntrs[i].flags & CNTR_DISABLED) 12778 continue; 12779 12780 if (port_cntrs[i].flags & CNTR_VL) { 12781 for (j = 0; j < C_VL_COUNT; j++) { 12782 snprintf(name, C_MAX_NAME, "%s%d", 12783 port_cntrs[i].name, vl_from_idx(j)); 12784 memcpy(p, name, strlen(name)); 12785 p += strlen(name); 12786 12787 /* Counter is 32 bits */ 12788 if (port_cntrs[i].flags & CNTR_32BIT) { 12789 memcpy(p, bit_type_32, bit_type_32_sz); 12790 p += bit_type_32_sz; 12791 } 12792 12793 *p++ = '\n'; 12794 } 12795 } else { 12796 memcpy(p, port_cntrs[i].name, 12797 strlen(port_cntrs[i].name)); 12798 p += strlen(port_cntrs[i].name); 12799 12800 /* Counter is 32 bits */ 12801 if (port_cntrs[i].flags & CNTR_32BIT) { 12802 memcpy(p, bit_type_32, bit_type_32_sz); 12803 p += bit_type_32_sz; 12804 } 12805 12806 *p++ = '\n'; 12807 } 12808 } 12809 12810 /* allocate per port storage for counter values */ 12811 ppd = (struct hfi1_pportdata *)(dd + 1); 12812 for (i = 0; i < dd->num_pports; i++, ppd++) { 12813 ppd->cntrs = kcalloc(dd->nportcntrs, sizeof(u64), GFP_KERNEL); 12814 if (!ppd->cntrs) 12815 goto bail; 12816 12817 ppd->scntrs = kcalloc(dd->nportcntrs, sizeof(u64), GFP_KERNEL); 12818 if (!ppd->scntrs) 12819 goto bail; 12820 } 12821 12822 /* CPU counters need to be allocated and zeroed */ 12823 if (init_cpu_counters(dd)) 12824 goto bail; 12825 12826 dd->update_cntr_wq = alloc_ordered_workqueue("hfi1_update_cntr_%d", 12827 WQ_MEM_RECLAIM, dd->unit); 12828 if (!dd->update_cntr_wq) 12829 goto bail; 12830 12831 INIT_WORK(&dd->update_cntr_work, do_update_synth_timer); 12832 12833 mod_timer(&dd->synth_stats_timer, jiffies + HZ * SYNTH_CNT_TIME); 12834 return 0; 12835 bail: 12836 free_cntrs(dd); 12837 return -ENOMEM; 12838 } 12839 12840 static u32 chip_to_opa_lstate(struct hfi1_devdata *dd, u32 chip_lstate) 12841 { 12842 switch (chip_lstate) { 12843 case LSTATE_DOWN: 12844 return IB_PORT_DOWN; 12845 case LSTATE_INIT: 12846 return IB_PORT_INIT; 12847 case LSTATE_ARMED: 12848 return IB_PORT_ARMED; 12849 case LSTATE_ACTIVE: 12850 return IB_PORT_ACTIVE; 12851 default: 12852 dd_dev_err(dd, 12853 "Unknown logical state 0x%x, reporting IB_PORT_DOWN\n", 12854 chip_lstate); 12855 return IB_PORT_DOWN; 12856 } 12857 } 12858 12859 u32 chip_to_opa_pstate(struct hfi1_devdata *dd, u32 chip_pstate) 12860 { 12861 /* look at the HFI meta-states only */ 12862 switch (chip_pstate & 0xf0) { 12863 case PLS_DISABLED: 12864 return IB_PORTPHYSSTATE_DISABLED; 12865 case PLS_OFFLINE: 12866 return OPA_PORTPHYSSTATE_OFFLINE; 12867 case PLS_POLLING: 12868 return IB_PORTPHYSSTATE_POLLING; 12869 case PLS_CONFIGPHY: 12870 return IB_PORTPHYSSTATE_TRAINING; 12871 case PLS_LINKUP: 12872 return IB_PORTPHYSSTATE_LINKUP; 12873 case PLS_PHYTEST: 12874 return IB_PORTPHYSSTATE_PHY_TEST; 12875 default: 12876 dd_dev_err(dd, "Unexpected chip physical state of 0x%x\n", 12877 chip_pstate); 12878 return IB_PORTPHYSSTATE_DISABLED; 12879 } 12880 } 12881 12882 /* return the OPA port logical state name */ 12883 const char *opa_lstate_name(u32 lstate) 12884 { 12885 static const char * const port_logical_names[] = { 12886 "PORT_NOP", 12887 "PORT_DOWN", 12888 "PORT_INIT", 12889 "PORT_ARMED", 12890 "PORT_ACTIVE", 12891 "PORT_ACTIVE_DEFER", 12892 }; 12893 if (lstate < ARRAY_SIZE(port_logical_names)) 12894 return port_logical_names[lstate]; 12895 return "unknown"; 12896 } 12897 12898 /* return the OPA port physical state name */ 12899 const char *opa_pstate_name(u32 pstate) 12900 { 12901 static const char * const port_physical_names[] = { 12902 "PHYS_NOP", 12903 "reserved1", 12904 "PHYS_POLL", 12905 "PHYS_DISABLED", 12906 "PHYS_TRAINING", 12907 "PHYS_LINKUP", 12908 "PHYS_LINK_ERR_RECOVER", 12909 "PHYS_PHY_TEST", 12910 "reserved8", 12911 "PHYS_OFFLINE", 12912 "PHYS_GANGED", 12913 "PHYS_TEST", 12914 }; 12915 if (pstate < ARRAY_SIZE(port_physical_names)) 12916 return port_physical_names[pstate]; 12917 return "unknown"; 12918 } 12919 12920 /** 12921 * update_statusp - Update userspace status flag 12922 * @ppd: Port data structure 12923 * @state: port state information 12924 * 12925 * Actual port status is determined by the host_link_state value 12926 * in the ppd. 12927 * 12928 * host_link_state MUST be updated before updating the user space 12929 * statusp. 12930 */ 12931 static void update_statusp(struct hfi1_pportdata *ppd, u32 state) 12932 { 12933 /* 12934 * Set port status flags in the page mapped into userspace 12935 * memory. Do it here to ensure a reliable state - this is 12936 * the only function called by all state handling code. 12937 * Always set the flags due to the fact that the cache value 12938 * might have been changed explicitly outside of this 12939 * function. 12940 */ 12941 if (ppd->statusp) { 12942 switch (state) { 12943 case IB_PORT_DOWN: 12944 case IB_PORT_INIT: 12945 *ppd->statusp &= ~(HFI1_STATUS_IB_CONF | 12946 HFI1_STATUS_IB_READY); 12947 break; 12948 case IB_PORT_ARMED: 12949 *ppd->statusp |= HFI1_STATUS_IB_CONF; 12950 break; 12951 case IB_PORT_ACTIVE: 12952 *ppd->statusp |= HFI1_STATUS_IB_READY; 12953 break; 12954 } 12955 } 12956 dd_dev_info(ppd->dd, "logical state changed to %s (0x%x)\n", 12957 opa_lstate_name(state), state); 12958 } 12959 12960 /** 12961 * wait_logical_linkstate - wait for an IB link state change to occur 12962 * @ppd: port device 12963 * @state: the state to wait for 12964 * @msecs: the number of milliseconds to wait 12965 * 12966 * Wait up to msecs milliseconds for IB link state change to occur. 12967 * For now, take the easy polling route. 12968 * Returns 0 if state reached, otherwise -ETIMEDOUT. 12969 */ 12970 static int wait_logical_linkstate(struct hfi1_pportdata *ppd, u32 state, 12971 int msecs) 12972 { 12973 unsigned long timeout; 12974 u32 new_state; 12975 12976 timeout = jiffies + msecs_to_jiffies(msecs); 12977 while (1) { 12978 new_state = chip_to_opa_lstate(ppd->dd, 12979 read_logical_state(ppd->dd)); 12980 if (new_state == state) 12981 break; 12982 if (time_after(jiffies, timeout)) { 12983 dd_dev_err(ppd->dd, 12984 "timeout waiting for link state 0x%x\n", 12985 state); 12986 return -ETIMEDOUT; 12987 } 12988 msleep(20); 12989 } 12990 12991 return 0; 12992 } 12993 12994 static void log_state_transition(struct hfi1_pportdata *ppd, u32 state) 12995 { 12996 u32 ib_pstate = chip_to_opa_pstate(ppd->dd, state); 12997 12998 dd_dev_info(ppd->dd, 12999 "physical state changed to %s (0x%x), phy 0x%x\n", 13000 opa_pstate_name(ib_pstate), ib_pstate, state); 13001 } 13002 13003 /* 13004 * Read the physical hardware link state and check if it matches host 13005 * drivers anticipated state. 13006 */ 13007 static void log_physical_state(struct hfi1_pportdata *ppd, u32 state) 13008 { 13009 u32 read_state = read_physical_state(ppd->dd); 13010 13011 if (read_state == state) { 13012 log_state_transition(ppd, state); 13013 } else { 13014 dd_dev_err(ppd->dd, 13015 "anticipated phy link state 0x%x, read 0x%x\n", 13016 state, read_state); 13017 } 13018 } 13019 13020 /* 13021 * wait_physical_linkstate - wait for an physical link state change to occur 13022 * @ppd: port device 13023 * @state: the state to wait for 13024 * @msecs: the number of milliseconds to wait 13025 * 13026 * Wait up to msecs milliseconds for physical link state change to occur. 13027 * Returns 0 if state reached, otherwise -ETIMEDOUT. 13028 */ 13029 static int wait_physical_linkstate(struct hfi1_pportdata *ppd, u32 state, 13030 int msecs) 13031 { 13032 u32 read_state; 13033 unsigned long timeout; 13034 13035 timeout = jiffies + msecs_to_jiffies(msecs); 13036 while (1) { 13037 read_state = read_physical_state(ppd->dd); 13038 if (read_state == state) 13039 break; 13040 if (time_after(jiffies, timeout)) { 13041 dd_dev_err(ppd->dd, 13042 "timeout waiting for phy link state 0x%x\n", 13043 state); 13044 return -ETIMEDOUT; 13045 } 13046 usleep_range(1950, 2050); /* sleep 2ms-ish */ 13047 } 13048 13049 log_state_transition(ppd, state); 13050 return 0; 13051 } 13052 13053 /* 13054 * wait_phys_link_offline_quiet_substates - wait for any offline substate 13055 * @ppd: port device 13056 * @msecs: the number of milliseconds to wait 13057 * 13058 * Wait up to msecs milliseconds for any offline physical link 13059 * state change to occur. 13060 * Returns 0 if at least one state is reached, otherwise -ETIMEDOUT. 13061 */ 13062 static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd, 13063 int msecs) 13064 { 13065 u32 read_state; 13066 unsigned long timeout; 13067 13068 timeout = jiffies + msecs_to_jiffies(msecs); 13069 while (1) { 13070 read_state = read_physical_state(ppd->dd); 13071 if ((read_state & 0xF0) == PLS_OFFLINE) 13072 break; 13073 if (time_after(jiffies, timeout)) { 13074 dd_dev_err(ppd->dd, 13075 "timeout waiting for phy link offline.quiet substates. Read state 0x%x, %dms\n", 13076 read_state, msecs); 13077 return -ETIMEDOUT; 13078 } 13079 usleep_range(1950, 2050); /* sleep 2ms-ish */ 13080 } 13081 13082 log_state_transition(ppd, read_state); 13083 return read_state; 13084 } 13085 13086 /* 13087 * wait_phys_link_out_of_offline - wait for any out of offline state 13088 * @ppd: port device 13089 * @msecs: the number of milliseconds to wait 13090 * 13091 * Wait up to msecs milliseconds for any out of offline physical link 13092 * state change to occur. 13093 * Returns 0 if at least one state is reached, otherwise -ETIMEDOUT. 13094 */ 13095 static int wait_phys_link_out_of_offline(struct hfi1_pportdata *ppd, 13096 int msecs) 13097 { 13098 u32 read_state; 13099 unsigned long timeout; 13100 13101 timeout = jiffies + msecs_to_jiffies(msecs); 13102 while (1) { 13103 read_state = read_physical_state(ppd->dd); 13104 if ((read_state & 0xF0) != PLS_OFFLINE) 13105 break; 13106 if (time_after(jiffies, timeout)) { 13107 dd_dev_err(ppd->dd, 13108 "timeout waiting for phy link out of offline. Read state 0x%x, %dms\n", 13109 read_state, msecs); 13110 return -ETIMEDOUT; 13111 } 13112 usleep_range(1950, 2050); /* sleep 2ms-ish */ 13113 } 13114 13115 log_state_transition(ppd, read_state); 13116 return read_state; 13117 } 13118 13119 #define CLEAR_STATIC_RATE_CONTROL_SMASK(r) \ 13120 (r &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK) 13121 13122 #define SET_STATIC_RATE_CONTROL_SMASK(r) \ 13123 (r |= SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK) 13124 13125 void hfi1_init_ctxt(struct send_context *sc) 13126 { 13127 if (sc) { 13128 struct hfi1_devdata *dd = sc->dd; 13129 u64 reg; 13130 u8 set = (sc->type == SC_USER ? 13131 HFI1_CAP_IS_USET(STATIC_RATE_CTRL) : 13132 HFI1_CAP_IS_KSET(STATIC_RATE_CTRL)); 13133 reg = read_kctxt_csr(dd, sc->hw_context, 13134 SEND_CTXT_CHECK_ENABLE); 13135 if (set) 13136 CLEAR_STATIC_RATE_CONTROL_SMASK(reg); 13137 else 13138 SET_STATIC_RATE_CONTROL_SMASK(reg); 13139 write_kctxt_csr(dd, sc->hw_context, 13140 SEND_CTXT_CHECK_ENABLE, reg); 13141 } 13142 } 13143 13144 int hfi1_tempsense_rd(struct hfi1_devdata *dd, struct hfi1_temp *temp) 13145 { 13146 int ret = 0; 13147 u64 reg; 13148 13149 if (dd->icode != ICODE_RTL_SILICON) { 13150 if (HFI1_CAP_IS_KSET(PRINT_UNIMPL)) 13151 dd_dev_info(dd, "%s: tempsense not supported by HW\n", 13152 __func__); 13153 return -EINVAL; 13154 } 13155 reg = read_csr(dd, ASIC_STS_THERM); 13156 temp->curr = ((reg >> ASIC_STS_THERM_CURR_TEMP_SHIFT) & 13157 ASIC_STS_THERM_CURR_TEMP_MASK); 13158 temp->lo_lim = ((reg >> ASIC_STS_THERM_LO_TEMP_SHIFT) & 13159 ASIC_STS_THERM_LO_TEMP_MASK); 13160 temp->hi_lim = ((reg >> ASIC_STS_THERM_HI_TEMP_SHIFT) & 13161 ASIC_STS_THERM_HI_TEMP_MASK); 13162 temp->crit_lim = ((reg >> ASIC_STS_THERM_CRIT_TEMP_SHIFT) & 13163 ASIC_STS_THERM_CRIT_TEMP_MASK); 13164 /* triggers is a 3-bit value - 1 bit per trigger. */ 13165 temp->triggers = (u8)((reg >> ASIC_STS_THERM_LOW_SHIFT) & 0x7); 13166 13167 return ret; 13168 } 13169 13170 /* ========================================================================= */ 13171 13172 /** 13173 * read_mod_write() - Calculate the IRQ register index and set/clear the bits 13174 * @dd: valid devdata 13175 * @src: IRQ source to determine register index from 13176 * @bits: the bits to set or clear 13177 * @set: true == set the bits, false == clear the bits 13178 * 13179 */ 13180 static void read_mod_write(struct hfi1_devdata *dd, u16 src, u64 bits, 13181 bool set) 13182 { 13183 u64 reg; 13184 u16 idx = src / BITS_PER_REGISTER; 13185 13186 spin_lock(&dd->irq_src_lock); 13187 reg = read_csr(dd, CCE_INT_MASK + (8 * idx)); 13188 if (set) 13189 reg |= bits; 13190 else 13191 reg &= ~bits; 13192 write_csr(dd, CCE_INT_MASK + (8 * idx), reg); 13193 spin_unlock(&dd->irq_src_lock); 13194 } 13195 13196 /** 13197 * set_intr_bits() - Enable/disable a range (one or more) IRQ sources 13198 * @dd: valid devdata 13199 * @first: first IRQ source to set/clear 13200 * @last: last IRQ source (inclusive) to set/clear 13201 * @set: true == set the bits, false == clear the bits 13202 * 13203 * If first == last, set the exact source. 13204 */ 13205 int set_intr_bits(struct hfi1_devdata *dd, u16 first, u16 last, bool set) 13206 { 13207 u64 bits = 0; 13208 u64 bit; 13209 u16 src; 13210 13211 if (first > NUM_INTERRUPT_SOURCES || last > NUM_INTERRUPT_SOURCES) 13212 return -EINVAL; 13213 13214 if (last < first) 13215 return -ERANGE; 13216 13217 for (src = first; src <= last; src++) { 13218 bit = src % BITS_PER_REGISTER; 13219 /* wrapped to next register? */ 13220 if (!bit && bits) { 13221 read_mod_write(dd, src - 1, bits, set); 13222 bits = 0; 13223 } 13224 bits |= BIT_ULL(bit); 13225 } 13226 read_mod_write(dd, last, bits, set); 13227 13228 return 0; 13229 } 13230 13231 /* 13232 * Clear all interrupt sources on the chip. 13233 */ 13234 void clear_all_interrupts(struct hfi1_devdata *dd) 13235 { 13236 int i; 13237 13238 for (i = 0; i < CCE_NUM_INT_CSRS; i++) 13239 write_csr(dd, CCE_INT_CLEAR + (8 * i), ~(u64)0); 13240 13241 write_csr(dd, CCE_ERR_CLEAR, ~(u64)0); 13242 write_csr(dd, MISC_ERR_CLEAR, ~(u64)0); 13243 write_csr(dd, RCV_ERR_CLEAR, ~(u64)0); 13244 write_csr(dd, SEND_ERR_CLEAR, ~(u64)0); 13245 write_csr(dd, SEND_PIO_ERR_CLEAR, ~(u64)0); 13246 write_csr(dd, SEND_DMA_ERR_CLEAR, ~(u64)0); 13247 write_csr(dd, SEND_EGRESS_ERR_CLEAR, ~(u64)0); 13248 for (i = 0; i < chip_send_contexts(dd); i++) 13249 write_kctxt_csr(dd, i, SEND_CTXT_ERR_CLEAR, ~(u64)0); 13250 for (i = 0; i < chip_sdma_engines(dd); i++) 13251 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_CLEAR, ~(u64)0); 13252 13253 write_csr(dd, DCC_ERR_FLG_CLR, ~(u64)0); 13254 write_csr(dd, DC_LCB_ERR_CLR, ~(u64)0); 13255 write_csr(dd, DC_DC8051_ERR_CLR, ~(u64)0); 13256 } 13257 13258 /* 13259 * Remap the interrupt source from the general handler to the given MSI-X 13260 * interrupt. 13261 */ 13262 void remap_intr(struct hfi1_devdata *dd, int isrc, int msix_intr) 13263 { 13264 u64 reg; 13265 int m, n; 13266 13267 /* clear from the handled mask of the general interrupt */ 13268 m = isrc / 64; 13269 n = isrc % 64; 13270 if (likely(m < CCE_NUM_INT_CSRS)) { 13271 dd->gi_mask[m] &= ~((u64)1 << n); 13272 } else { 13273 dd_dev_err(dd, "remap interrupt err\n"); 13274 return; 13275 } 13276 13277 /* direct the chip source to the given MSI-X interrupt */ 13278 m = isrc / 8; 13279 n = isrc % 8; 13280 reg = read_csr(dd, CCE_INT_MAP + (8 * m)); 13281 reg &= ~((u64)0xff << (8 * n)); 13282 reg |= ((u64)msix_intr & 0xff) << (8 * n); 13283 write_csr(dd, CCE_INT_MAP + (8 * m), reg); 13284 } 13285 13286 void remap_sdma_interrupts(struct hfi1_devdata *dd, int engine, int msix_intr) 13287 { 13288 /* 13289 * SDMA engine interrupt sources grouped by type, rather than 13290 * engine. Per-engine interrupts are as follows: 13291 * SDMA 13292 * SDMAProgress 13293 * SDMAIdle 13294 */ 13295 remap_intr(dd, IS_SDMA_START + engine, msix_intr); 13296 remap_intr(dd, IS_SDMA_PROGRESS_START + engine, msix_intr); 13297 remap_intr(dd, IS_SDMA_IDLE_START + engine, msix_intr); 13298 } 13299 13300 /* 13301 * Set the general handler to accept all interrupts, remap all 13302 * chip interrupts back to MSI-X 0. 13303 */ 13304 void reset_interrupts(struct hfi1_devdata *dd) 13305 { 13306 int i; 13307 13308 /* all interrupts handled by the general handler */ 13309 for (i = 0; i < CCE_NUM_INT_CSRS; i++) 13310 dd->gi_mask[i] = ~(u64)0; 13311 13312 /* all chip interrupts map to MSI-X 0 */ 13313 for (i = 0; i < CCE_NUM_INT_MAP_CSRS; i++) 13314 write_csr(dd, CCE_INT_MAP + (8 * i), 0); 13315 } 13316 13317 /** 13318 * set_up_interrupts() - Initialize the IRQ resources and state 13319 * @dd: valid devdata 13320 * 13321 */ 13322 static int set_up_interrupts(struct hfi1_devdata *dd) 13323 { 13324 int ret; 13325 13326 /* mask all interrupts */ 13327 set_intr_bits(dd, IS_FIRST_SOURCE, IS_LAST_SOURCE, false); 13328 13329 /* clear all pending interrupts */ 13330 clear_all_interrupts(dd); 13331 13332 /* reset general handler mask, chip MSI-X mappings */ 13333 reset_interrupts(dd); 13334 13335 /* ask for MSI-X interrupts */ 13336 ret = msix_initialize(dd); 13337 if (ret) 13338 return ret; 13339 13340 ret = msix_request_irqs(dd); 13341 if (ret) 13342 msix_clean_up_interrupts(dd); 13343 13344 return ret; 13345 } 13346 13347 /* 13348 * Set up context values in dd. Sets: 13349 * 13350 * num_rcv_contexts - number of contexts being used 13351 * n_krcv_queues - number of kernel contexts 13352 * first_dyn_alloc_ctxt - first dynamically allocated context 13353 * in array of contexts 13354 * freectxts - number of free user contexts 13355 * num_send_contexts - number of PIO send contexts being used 13356 * num_netdev_contexts - number of contexts reserved for netdev 13357 */ 13358 static int set_up_context_variables(struct hfi1_devdata *dd) 13359 { 13360 unsigned long num_kernel_contexts; 13361 u16 num_netdev_contexts; 13362 int ret; 13363 unsigned ngroups; 13364 int rmt_count; 13365 int user_rmt_reduced; 13366 u32 n_usr_ctxts; 13367 u32 send_contexts = chip_send_contexts(dd); 13368 u32 rcv_contexts = chip_rcv_contexts(dd); 13369 13370 /* 13371 * Kernel receive contexts: 13372 * - Context 0 - control context (VL15/multicast/error) 13373 * - Context 1 - first kernel context 13374 * - Context 2 - second kernel context 13375 * ... 13376 */ 13377 if (n_krcvqs) 13378 /* 13379 * n_krcvqs is the sum of module parameter kernel receive 13380 * contexts, krcvqs[]. It does not include the control 13381 * context, so add that. 13382 */ 13383 num_kernel_contexts = n_krcvqs + 1; 13384 else 13385 num_kernel_contexts = DEFAULT_KRCVQS + 1; 13386 /* 13387 * Every kernel receive context needs an ACK send context. 13388 * one send context is allocated for each VL{0-7} and VL15 13389 */ 13390 if (num_kernel_contexts > (send_contexts - num_vls - 1)) { 13391 dd_dev_err(dd, 13392 "Reducing # kernel rcv contexts to: %d, from %lu\n", 13393 send_contexts - num_vls - 1, 13394 num_kernel_contexts); 13395 num_kernel_contexts = send_contexts - num_vls - 1; 13396 } 13397 13398 /* 13399 * User contexts: 13400 * - default to 1 user context per real (non-HT) CPU core if 13401 * num_user_contexts is negative 13402 */ 13403 if (num_user_contexts < 0) 13404 n_usr_ctxts = cpumask_weight(&node_affinity.real_cpu_mask); 13405 else 13406 n_usr_ctxts = num_user_contexts; 13407 /* 13408 * Adjust the counts given a global max. 13409 */ 13410 if (num_kernel_contexts + n_usr_ctxts > rcv_contexts) { 13411 dd_dev_err(dd, 13412 "Reducing # user receive contexts to: %u, from %u\n", 13413 (u32)(rcv_contexts - num_kernel_contexts), 13414 n_usr_ctxts); 13415 /* recalculate */ 13416 n_usr_ctxts = rcv_contexts - num_kernel_contexts; 13417 } 13418 13419 num_netdev_contexts = 13420 hfi1_num_netdev_contexts(dd, rcv_contexts - 13421 (num_kernel_contexts + n_usr_ctxts), 13422 &node_affinity.real_cpu_mask); 13423 /* 13424 * The RMT entries are currently allocated as shown below: 13425 * 1. QOS (0 to 128 entries); 13426 * 2. FECN (num_kernel_context - 1 + num_user_contexts + 13427 * num_netdev_contexts); 13428 * 3. netdev (num_netdev_contexts). 13429 * It should be noted that FECN oversubscribe num_netdev_contexts 13430 * entries of RMT because both netdev and PSM could allocate any receive 13431 * context between dd->first_dyn_alloc_text and dd->num_rcv_contexts, 13432 * and PSM FECN must reserve an RMT entry for each possible PSM receive 13433 * context. 13434 */ 13435 rmt_count = qos_rmt_entries(dd, NULL, NULL) + (num_netdev_contexts * 2); 13436 if (HFI1_CAP_IS_KSET(TID_RDMA)) 13437 rmt_count += num_kernel_contexts - 1; 13438 if (rmt_count + n_usr_ctxts > NUM_MAP_ENTRIES) { 13439 user_rmt_reduced = NUM_MAP_ENTRIES - rmt_count; 13440 dd_dev_err(dd, 13441 "RMT size is reducing the number of user receive contexts from %u to %d\n", 13442 n_usr_ctxts, 13443 user_rmt_reduced); 13444 /* recalculate */ 13445 n_usr_ctxts = user_rmt_reduced; 13446 } 13447 13448 /* the first N are kernel contexts, the rest are user/netdev contexts */ 13449 dd->num_rcv_contexts = 13450 num_kernel_contexts + n_usr_ctxts + num_netdev_contexts; 13451 dd->n_krcv_queues = num_kernel_contexts; 13452 dd->first_dyn_alloc_ctxt = num_kernel_contexts; 13453 dd->num_netdev_contexts = num_netdev_contexts; 13454 dd->num_user_contexts = n_usr_ctxts; 13455 dd->freectxts = n_usr_ctxts; 13456 dd_dev_info(dd, 13457 "rcv contexts: chip %d, used %d (kernel %d, netdev %u, user %u)\n", 13458 rcv_contexts, 13459 (int)dd->num_rcv_contexts, 13460 (int)dd->n_krcv_queues, 13461 dd->num_netdev_contexts, 13462 dd->num_user_contexts); 13463 13464 /* 13465 * Receive array allocation: 13466 * All RcvArray entries are divided into groups of 8. This 13467 * is required by the hardware and will speed up writes to 13468 * consecutive entries by using write-combining of the entire 13469 * cacheline. 13470 * 13471 * The number of groups are evenly divided among all contexts. 13472 * any left over groups will be given to the first N user 13473 * contexts. 13474 */ 13475 dd->rcv_entries.group_size = RCV_INCREMENT; 13476 ngroups = chip_rcv_array_count(dd) / dd->rcv_entries.group_size; 13477 dd->rcv_entries.ngroups = ngroups / dd->num_rcv_contexts; 13478 dd->rcv_entries.nctxt_extra = ngroups - 13479 (dd->num_rcv_contexts * dd->rcv_entries.ngroups); 13480 dd_dev_info(dd, "RcvArray groups %u, ctxts extra %u\n", 13481 dd->rcv_entries.ngroups, 13482 dd->rcv_entries.nctxt_extra); 13483 if (dd->rcv_entries.ngroups * dd->rcv_entries.group_size > 13484 MAX_EAGER_ENTRIES * 2) { 13485 dd->rcv_entries.ngroups = (MAX_EAGER_ENTRIES * 2) / 13486 dd->rcv_entries.group_size; 13487 dd_dev_info(dd, 13488 "RcvArray group count too high, change to %u\n", 13489 dd->rcv_entries.ngroups); 13490 dd->rcv_entries.nctxt_extra = 0; 13491 } 13492 /* 13493 * PIO send contexts 13494 */ 13495 ret = init_sc_pools_and_sizes(dd); 13496 if (ret >= 0) { /* success */ 13497 dd->num_send_contexts = ret; 13498 dd_dev_info( 13499 dd, 13500 "send contexts: chip %d, used %d (kernel %d, ack %d, user %d, vl15 %d)\n", 13501 send_contexts, 13502 dd->num_send_contexts, 13503 dd->sc_sizes[SC_KERNEL].count, 13504 dd->sc_sizes[SC_ACK].count, 13505 dd->sc_sizes[SC_USER].count, 13506 dd->sc_sizes[SC_VL15].count); 13507 ret = 0; /* success */ 13508 } 13509 13510 return ret; 13511 } 13512 13513 /* 13514 * Set the device/port partition key table. The MAD code 13515 * will ensure that, at least, the partial management 13516 * partition key is present in the table. 13517 */ 13518 static void set_partition_keys(struct hfi1_pportdata *ppd) 13519 { 13520 struct hfi1_devdata *dd = ppd->dd; 13521 u64 reg = 0; 13522 int i; 13523 13524 dd_dev_info(dd, "Setting partition keys\n"); 13525 for (i = 0; i < hfi1_get_npkeys(dd); i++) { 13526 reg |= (ppd->pkeys[i] & 13527 RCV_PARTITION_KEY_PARTITION_KEY_A_MASK) << 13528 ((i % 4) * 13529 RCV_PARTITION_KEY_PARTITION_KEY_B_SHIFT); 13530 /* Each register holds 4 PKey values. */ 13531 if ((i % 4) == 3) { 13532 write_csr(dd, RCV_PARTITION_KEY + 13533 ((i - 3) * 2), reg); 13534 reg = 0; 13535 } 13536 } 13537 13538 /* Always enable HW pkeys check when pkeys table is set */ 13539 add_rcvctrl(dd, RCV_CTRL_RCV_PARTITION_KEY_ENABLE_SMASK); 13540 } 13541 13542 /* 13543 * These CSRs and memories are uninitialized on reset and must be 13544 * written before reading to set the ECC/parity bits. 13545 * 13546 * NOTE: All user context CSRs that are not mmaped write-only 13547 * (e.g. the TID flows) must be initialized even if the driver never 13548 * reads them. 13549 */ 13550 static void write_uninitialized_csrs_and_memories(struct hfi1_devdata *dd) 13551 { 13552 int i, j; 13553 13554 /* CceIntMap */ 13555 for (i = 0; i < CCE_NUM_INT_MAP_CSRS; i++) 13556 write_csr(dd, CCE_INT_MAP + (8 * i), 0); 13557 13558 /* SendCtxtCreditReturnAddr */ 13559 for (i = 0; i < chip_send_contexts(dd); i++) 13560 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_RETURN_ADDR, 0); 13561 13562 /* PIO Send buffers */ 13563 /* SDMA Send buffers */ 13564 /* 13565 * These are not normally read, and (presently) have no method 13566 * to be read, so are not pre-initialized 13567 */ 13568 13569 /* RcvHdrAddr */ 13570 /* RcvHdrTailAddr */ 13571 /* RcvTidFlowTable */ 13572 for (i = 0; i < chip_rcv_contexts(dd); i++) { 13573 write_kctxt_csr(dd, i, RCV_HDR_ADDR, 0); 13574 write_kctxt_csr(dd, i, RCV_HDR_TAIL_ADDR, 0); 13575 for (j = 0; j < RXE_NUM_TID_FLOWS; j++) 13576 write_uctxt_csr(dd, i, RCV_TID_FLOW_TABLE + (8 * j), 0); 13577 } 13578 13579 /* RcvArray */ 13580 for (i = 0; i < chip_rcv_array_count(dd); i++) 13581 hfi1_put_tid(dd, i, PT_INVALID_FLUSH, 0, 0); 13582 13583 /* RcvQPMapTable */ 13584 for (i = 0; i < 32; i++) 13585 write_csr(dd, RCV_QP_MAP_TABLE + (8 * i), 0); 13586 } 13587 13588 /* 13589 * Use the ctrl_bits in CceCtrl to clear the status_bits in CceStatus. 13590 */ 13591 static void clear_cce_status(struct hfi1_devdata *dd, u64 status_bits, 13592 u64 ctrl_bits) 13593 { 13594 unsigned long timeout; 13595 u64 reg; 13596 13597 /* is the condition present? */ 13598 reg = read_csr(dd, CCE_STATUS); 13599 if ((reg & status_bits) == 0) 13600 return; 13601 13602 /* clear the condition */ 13603 write_csr(dd, CCE_CTRL, ctrl_bits); 13604 13605 /* wait for the condition to clear */ 13606 timeout = jiffies + msecs_to_jiffies(CCE_STATUS_TIMEOUT); 13607 while (1) { 13608 reg = read_csr(dd, CCE_STATUS); 13609 if ((reg & status_bits) == 0) 13610 return; 13611 if (time_after(jiffies, timeout)) { 13612 dd_dev_err(dd, 13613 "Timeout waiting for CceStatus to clear bits 0x%llx, remaining 0x%llx\n", 13614 status_bits, reg & status_bits); 13615 return; 13616 } 13617 udelay(1); 13618 } 13619 } 13620 13621 /* set CCE CSRs to chip reset defaults */ 13622 static void reset_cce_csrs(struct hfi1_devdata *dd) 13623 { 13624 int i; 13625 13626 /* CCE_REVISION read-only */ 13627 /* CCE_REVISION2 read-only */ 13628 /* CCE_CTRL - bits clear automatically */ 13629 /* CCE_STATUS read-only, use CceCtrl to clear */ 13630 clear_cce_status(dd, ALL_FROZE, CCE_CTRL_SPC_UNFREEZE_SMASK); 13631 clear_cce_status(dd, ALL_TXE_PAUSE, CCE_CTRL_TXE_RESUME_SMASK); 13632 clear_cce_status(dd, ALL_RXE_PAUSE, CCE_CTRL_RXE_RESUME_SMASK); 13633 for (i = 0; i < CCE_NUM_SCRATCH; i++) 13634 write_csr(dd, CCE_SCRATCH + (8 * i), 0); 13635 /* CCE_ERR_STATUS read-only */ 13636 write_csr(dd, CCE_ERR_MASK, 0); 13637 write_csr(dd, CCE_ERR_CLEAR, ~0ull); 13638 /* CCE_ERR_FORCE leave alone */ 13639 for (i = 0; i < CCE_NUM_32_BIT_COUNTERS; i++) 13640 write_csr(dd, CCE_COUNTER_ARRAY32 + (8 * i), 0); 13641 write_csr(dd, CCE_DC_CTRL, CCE_DC_CTRL_RESETCSR); 13642 /* CCE_PCIE_CTRL leave alone */ 13643 for (i = 0; i < CCE_NUM_MSIX_VECTORS; i++) { 13644 write_csr(dd, CCE_MSIX_TABLE_LOWER + (8 * i), 0); 13645 write_csr(dd, CCE_MSIX_TABLE_UPPER + (8 * i), 13646 CCE_MSIX_TABLE_UPPER_RESETCSR); 13647 } 13648 for (i = 0; i < CCE_NUM_MSIX_PBAS; i++) { 13649 /* CCE_MSIX_PBA read-only */ 13650 write_csr(dd, CCE_MSIX_INT_GRANTED, ~0ull); 13651 write_csr(dd, CCE_MSIX_VEC_CLR_WITHOUT_INT, ~0ull); 13652 } 13653 for (i = 0; i < CCE_NUM_INT_MAP_CSRS; i++) 13654 write_csr(dd, CCE_INT_MAP, 0); 13655 for (i = 0; i < CCE_NUM_INT_CSRS; i++) { 13656 /* CCE_INT_STATUS read-only */ 13657 write_csr(dd, CCE_INT_MASK + (8 * i), 0); 13658 write_csr(dd, CCE_INT_CLEAR + (8 * i), ~0ull); 13659 /* CCE_INT_FORCE leave alone */ 13660 /* CCE_INT_BLOCKED read-only */ 13661 } 13662 for (i = 0; i < CCE_NUM_32_BIT_INT_COUNTERS; i++) 13663 write_csr(dd, CCE_INT_COUNTER_ARRAY32 + (8 * i), 0); 13664 } 13665 13666 /* set MISC CSRs to chip reset defaults */ 13667 static void reset_misc_csrs(struct hfi1_devdata *dd) 13668 { 13669 int i; 13670 13671 for (i = 0; i < 32; i++) { 13672 write_csr(dd, MISC_CFG_RSA_R2 + (8 * i), 0); 13673 write_csr(dd, MISC_CFG_RSA_SIGNATURE + (8 * i), 0); 13674 write_csr(dd, MISC_CFG_RSA_MODULUS + (8 * i), 0); 13675 } 13676 /* 13677 * MISC_CFG_SHA_PRELOAD leave alone - always reads 0 and can 13678 * only be written 128-byte chunks 13679 */ 13680 /* init RSA engine to clear lingering errors */ 13681 write_csr(dd, MISC_CFG_RSA_CMD, 1); 13682 write_csr(dd, MISC_CFG_RSA_MU, 0); 13683 write_csr(dd, MISC_CFG_FW_CTRL, 0); 13684 /* MISC_STS_8051_DIGEST read-only */ 13685 /* MISC_STS_SBM_DIGEST read-only */ 13686 /* MISC_STS_PCIE_DIGEST read-only */ 13687 /* MISC_STS_FAB_DIGEST read-only */ 13688 /* MISC_ERR_STATUS read-only */ 13689 write_csr(dd, MISC_ERR_MASK, 0); 13690 write_csr(dd, MISC_ERR_CLEAR, ~0ull); 13691 /* MISC_ERR_FORCE leave alone */ 13692 } 13693 13694 /* set TXE CSRs to chip reset defaults */ 13695 static void reset_txe_csrs(struct hfi1_devdata *dd) 13696 { 13697 int i; 13698 13699 /* 13700 * TXE Kernel CSRs 13701 */ 13702 write_csr(dd, SEND_CTRL, 0); 13703 __cm_reset(dd, 0); /* reset CM internal state */ 13704 /* SEND_CONTEXTS read-only */ 13705 /* SEND_DMA_ENGINES read-only */ 13706 /* SEND_PIO_MEM_SIZE read-only */ 13707 /* SEND_DMA_MEM_SIZE read-only */ 13708 write_csr(dd, SEND_HIGH_PRIORITY_LIMIT, 0); 13709 pio_reset_all(dd); /* SEND_PIO_INIT_CTXT */ 13710 /* SEND_PIO_ERR_STATUS read-only */ 13711 write_csr(dd, SEND_PIO_ERR_MASK, 0); 13712 write_csr(dd, SEND_PIO_ERR_CLEAR, ~0ull); 13713 /* SEND_PIO_ERR_FORCE leave alone */ 13714 /* SEND_DMA_ERR_STATUS read-only */ 13715 write_csr(dd, SEND_DMA_ERR_MASK, 0); 13716 write_csr(dd, SEND_DMA_ERR_CLEAR, ~0ull); 13717 /* SEND_DMA_ERR_FORCE leave alone */ 13718 /* SEND_EGRESS_ERR_STATUS read-only */ 13719 write_csr(dd, SEND_EGRESS_ERR_MASK, 0); 13720 write_csr(dd, SEND_EGRESS_ERR_CLEAR, ~0ull); 13721 /* SEND_EGRESS_ERR_FORCE leave alone */ 13722 write_csr(dd, SEND_BTH_QP, 0); 13723 write_csr(dd, SEND_STATIC_RATE_CONTROL, 0); 13724 write_csr(dd, SEND_SC2VLT0, 0); 13725 write_csr(dd, SEND_SC2VLT1, 0); 13726 write_csr(dd, SEND_SC2VLT2, 0); 13727 write_csr(dd, SEND_SC2VLT3, 0); 13728 write_csr(dd, SEND_LEN_CHECK0, 0); 13729 write_csr(dd, SEND_LEN_CHECK1, 0); 13730 /* SEND_ERR_STATUS read-only */ 13731 write_csr(dd, SEND_ERR_MASK, 0); 13732 write_csr(dd, SEND_ERR_CLEAR, ~0ull); 13733 /* SEND_ERR_FORCE read-only */ 13734 for (i = 0; i < VL_ARB_LOW_PRIO_TABLE_SIZE; i++) 13735 write_csr(dd, SEND_LOW_PRIORITY_LIST + (8 * i), 0); 13736 for (i = 0; i < VL_ARB_HIGH_PRIO_TABLE_SIZE; i++) 13737 write_csr(dd, SEND_HIGH_PRIORITY_LIST + (8 * i), 0); 13738 for (i = 0; i < chip_send_contexts(dd) / NUM_CONTEXTS_PER_SET; i++) 13739 write_csr(dd, SEND_CONTEXT_SET_CTRL + (8 * i), 0); 13740 for (i = 0; i < TXE_NUM_32_BIT_COUNTER; i++) 13741 write_csr(dd, SEND_COUNTER_ARRAY32 + (8 * i), 0); 13742 for (i = 0; i < TXE_NUM_64_BIT_COUNTER; i++) 13743 write_csr(dd, SEND_COUNTER_ARRAY64 + (8 * i), 0); 13744 write_csr(dd, SEND_CM_CTRL, SEND_CM_CTRL_RESETCSR); 13745 write_csr(dd, SEND_CM_GLOBAL_CREDIT, SEND_CM_GLOBAL_CREDIT_RESETCSR); 13746 /* SEND_CM_CREDIT_USED_STATUS read-only */ 13747 write_csr(dd, SEND_CM_TIMER_CTRL, 0); 13748 write_csr(dd, SEND_CM_LOCAL_AU_TABLE0_TO3, 0); 13749 write_csr(dd, SEND_CM_LOCAL_AU_TABLE4_TO7, 0); 13750 write_csr(dd, SEND_CM_REMOTE_AU_TABLE0_TO3, 0); 13751 write_csr(dd, SEND_CM_REMOTE_AU_TABLE4_TO7, 0); 13752 for (i = 0; i < TXE_NUM_DATA_VL; i++) 13753 write_csr(dd, SEND_CM_CREDIT_VL + (8 * i), 0); 13754 write_csr(dd, SEND_CM_CREDIT_VL15, 0); 13755 /* SEND_CM_CREDIT_USED_VL read-only */ 13756 /* SEND_CM_CREDIT_USED_VL15 read-only */ 13757 /* SEND_EGRESS_CTXT_STATUS read-only */ 13758 /* SEND_EGRESS_SEND_DMA_STATUS read-only */ 13759 write_csr(dd, SEND_EGRESS_ERR_INFO, ~0ull); 13760 /* SEND_EGRESS_ERR_INFO read-only */ 13761 /* SEND_EGRESS_ERR_SOURCE read-only */ 13762 13763 /* 13764 * TXE Per-Context CSRs 13765 */ 13766 for (i = 0; i < chip_send_contexts(dd); i++) { 13767 write_kctxt_csr(dd, i, SEND_CTXT_CTRL, 0); 13768 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_CTRL, 0); 13769 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_RETURN_ADDR, 0); 13770 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_FORCE, 0); 13771 write_kctxt_csr(dd, i, SEND_CTXT_ERR_MASK, 0); 13772 write_kctxt_csr(dd, i, SEND_CTXT_ERR_CLEAR, ~0ull); 13773 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_ENABLE, 0); 13774 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_VL, 0); 13775 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_JOB_KEY, 0); 13776 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_PARTITION_KEY, 0); 13777 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_SLID, 0); 13778 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_OPCODE, 0); 13779 } 13780 13781 /* 13782 * TXE Per-SDMA CSRs 13783 */ 13784 for (i = 0; i < chip_sdma_engines(dd); i++) { 13785 write_kctxt_csr(dd, i, SEND_DMA_CTRL, 0); 13786 /* SEND_DMA_STATUS read-only */ 13787 write_kctxt_csr(dd, i, SEND_DMA_BASE_ADDR, 0); 13788 write_kctxt_csr(dd, i, SEND_DMA_LEN_GEN, 0); 13789 write_kctxt_csr(dd, i, SEND_DMA_TAIL, 0); 13790 /* SEND_DMA_HEAD read-only */ 13791 write_kctxt_csr(dd, i, SEND_DMA_HEAD_ADDR, 0); 13792 write_kctxt_csr(dd, i, SEND_DMA_PRIORITY_THLD, 0); 13793 /* SEND_DMA_IDLE_CNT read-only */ 13794 write_kctxt_csr(dd, i, SEND_DMA_RELOAD_CNT, 0); 13795 write_kctxt_csr(dd, i, SEND_DMA_DESC_CNT, 0); 13796 /* SEND_DMA_DESC_FETCHED_CNT read-only */ 13797 /* SEND_DMA_ENG_ERR_STATUS read-only */ 13798 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_MASK, 0); 13799 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_CLEAR, ~0ull); 13800 /* SEND_DMA_ENG_ERR_FORCE leave alone */ 13801 write_kctxt_csr(dd, i, SEND_DMA_CHECK_ENABLE, 0); 13802 write_kctxt_csr(dd, i, SEND_DMA_CHECK_VL, 0); 13803 write_kctxt_csr(dd, i, SEND_DMA_CHECK_JOB_KEY, 0); 13804 write_kctxt_csr(dd, i, SEND_DMA_CHECK_PARTITION_KEY, 0); 13805 write_kctxt_csr(dd, i, SEND_DMA_CHECK_SLID, 0); 13806 write_kctxt_csr(dd, i, SEND_DMA_CHECK_OPCODE, 0); 13807 write_kctxt_csr(dd, i, SEND_DMA_MEMORY, 0); 13808 } 13809 } 13810 13811 /* 13812 * Expect on entry: 13813 * o Packet ingress is disabled, i.e. RcvCtrl.RcvPortEnable == 0 13814 */ 13815 static void init_rbufs(struct hfi1_devdata *dd) 13816 { 13817 u64 reg; 13818 int count; 13819 13820 /* 13821 * Wait for DMA to stop: RxRbufPktPending and RxPktInProgress are 13822 * clear. 13823 */ 13824 count = 0; 13825 while (1) { 13826 reg = read_csr(dd, RCV_STATUS); 13827 if ((reg & (RCV_STATUS_RX_RBUF_PKT_PENDING_SMASK 13828 | RCV_STATUS_RX_PKT_IN_PROGRESS_SMASK)) == 0) 13829 break; 13830 /* 13831 * Give up after 1ms - maximum wait time. 13832 * 13833 * RBuf size is 136KiB. Slowest possible is PCIe Gen1 x1 at 13834 * 250MB/s bandwidth. Lower rate to 66% for overhead to get: 13835 * 136 KB / (66% * 250MB/s) = 844us 13836 */ 13837 if (count++ > 500) { 13838 dd_dev_err(dd, 13839 "%s: in-progress DMA not clearing: RcvStatus 0x%llx, continuing\n", 13840 __func__, reg); 13841 break; 13842 } 13843 udelay(2); /* do not busy-wait the CSR */ 13844 } 13845 13846 /* start the init - expect RcvCtrl to be 0 */ 13847 write_csr(dd, RCV_CTRL, RCV_CTRL_RX_RBUF_INIT_SMASK); 13848 13849 /* 13850 * Read to force the write of Rcvtrl.RxRbufInit. There is a brief 13851 * period after the write before RcvStatus.RxRbufInitDone is valid. 13852 * The delay in the first run through the loop below is sufficient and 13853 * required before the first read of RcvStatus.RxRbufInintDone. 13854 */ 13855 read_csr(dd, RCV_CTRL); 13856 13857 /* wait for the init to finish */ 13858 count = 0; 13859 while (1) { 13860 /* delay is required first time through - see above */ 13861 udelay(2); /* do not busy-wait the CSR */ 13862 reg = read_csr(dd, RCV_STATUS); 13863 if (reg & (RCV_STATUS_RX_RBUF_INIT_DONE_SMASK)) 13864 break; 13865 13866 /* give up after 100us - slowest possible at 33MHz is 73us */ 13867 if (count++ > 50) { 13868 dd_dev_err(dd, 13869 "%s: RcvStatus.RxRbufInit not set, continuing\n", 13870 __func__); 13871 break; 13872 } 13873 } 13874 } 13875 13876 /* set RXE CSRs to chip reset defaults */ 13877 static void reset_rxe_csrs(struct hfi1_devdata *dd) 13878 { 13879 int i, j; 13880 13881 /* 13882 * RXE Kernel CSRs 13883 */ 13884 write_csr(dd, RCV_CTRL, 0); 13885 init_rbufs(dd); 13886 /* RCV_STATUS read-only */ 13887 /* RCV_CONTEXTS read-only */ 13888 /* RCV_ARRAY_CNT read-only */ 13889 /* RCV_BUF_SIZE read-only */ 13890 write_csr(dd, RCV_BTH_QP, 0); 13891 write_csr(dd, RCV_MULTICAST, 0); 13892 write_csr(dd, RCV_BYPASS, 0); 13893 write_csr(dd, RCV_VL15, 0); 13894 /* this is a clear-down */ 13895 write_csr(dd, RCV_ERR_INFO, 13896 RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK); 13897 /* RCV_ERR_STATUS read-only */ 13898 write_csr(dd, RCV_ERR_MASK, 0); 13899 write_csr(dd, RCV_ERR_CLEAR, ~0ull); 13900 /* RCV_ERR_FORCE leave alone */ 13901 for (i = 0; i < 32; i++) 13902 write_csr(dd, RCV_QP_MAP_TABLE + (8 * i), 0); 13903 for (i = 0; i < 4; i++) 13904 write_csr(dd, RCV_PARTITION_KEY + (8 * i), 0); 13905 for (i = 0; i < RXE_NUM_32_BIT_COUNTERS; i++) 13906 write_csr(dd, RCV_COUNTER_ARRAY32 + (8 * i), 0); 13907 for (i = 0; i < RXE_NUM_64_BIT_COUNTERS; i++) 13908 write_csr(dd, RCV_COUNTER_ARRAY64 + (8 * i), 0); 13909 for (i = 0; i < RXE_NUM_RSM_INSTANCES; i++) 13910 clear_rsm_rule(dd, i); 13911 for (i = 0; i < 32; i++) 13912 write_csr(dd, RCV_RSM_MAP_TABLE + (8 * i), 0); 13913 13914 /* 13915 * RXE Kernel and User Per-Context CSRs 13916 */ 13917 for (i = 0; i < chip_rcv_contexts(dd); i++) { 13918 /* kernel */ 13919 write_kctxt_csr(dd, i, RCV_CTXT_CTRL, 0); 13920 /* RCV_CTXT_STATUS read-only */ 13921 write_kctxt_csr(dd, i, RCV_EGR_CTRL, 0); 13922 write_kctxt_csr(dd, i, RCV_TID_CTRL, 0); 13923 write_kctxt_csr(dd, i, RCV_KEY_CTRL, 0); 13924 write_kctxt_csr(dd, i, RCV_HDR_ADDR, 0); 13925 write_kctxt_csr(dd, i, RCV_HDR_CNT, 0); 13926 write_kctxt_csr(dd, i, RCV_HDR_ENT_SIZE, 0); 13927 write_kctxt_csr(dd, i, RCV_HDR_SIZE, 0); 13928 write_kctxt_csr(dd, i, RCV_HDR_TAIL_ADDR, 0); 13929 write_kctxt_csr(dd, i, RCV_AVAIL_TIME_OUT, 0); 13930 write_kctxt_csr(dd, i, RCV_HDR_OVFL_CNT, 0); 13931 13932 /* user */ 13933 /* RCV_HDR_TAIL read-only */ 13934 write_uctxt_csr(dd, i, RCV_HDR_HEAD, 0); 13935 /* RCV_EGR_INDEX_TAIL read-only */ 13936 write_uctxt_csr(dd, i, RCV_EGR_INDEX_HEAD, 0); 13937 /* RCV_EGR_OFFSET_TAIL read-only */ 13938 for (j = 0; j < RXE_NUM_TID_FLOWS; j++) { 13939 write_uctxt_csr(dd, i, 13940 RCV_TID_FLOW_TABLE + (8 * j), 0); 13941 } 13942 } 13943 } 13944 13945 /* 13946 * Set sc2vl tables. 13947 * 13948 * They power on to zeros, so to avoid send context errors 13949 * they need to be set: 13950 * 13951 * SC 0-7 -> VL 0-7 (respectively) 13952 * SC 15 -> VL 15 13953 * otherwise 13954 * -> VL 0 13955 */ 13956 static void init_sc2vl_tables(struct hfi1_devdata *dd) 13957 { 13958 int i; 13959 /* init per architecture spec, constrained by hardware capability */ 13960 13961 /* HFI maps sent packets */ 13962 write_csr(dd, SEND_SC2VLT0, SC2VL_VAL( 13963 0, 13964 0, 0, 1, 1, 13965 2, 2, 3, 3, 13966 4, 4, 5, 5, 13967 6, 6, 7, 7)); 13968 write_csr(dd, SEND_SC2VLT1, SC2VL_VAL( 13969 1, 13970 8, 0, 9, 0, 13971 10, 0, 11, 0, 13972 12, 0, 13, 0, 13973 14, 0, 15, 15)); 13974 write_csr(dd, SEND_SC2VLT2, SC2VL_VAL( 13975 2, 13976 16, 0, 17, 0, 13977 18, 0, 19, 0, 13978 20, 0, 21, 0, 13979 22, 0, 23, 0)); 13980 write_csr(dd, SEND_SC2VLT3, SC2VL_VAL( 13981 3, 13982 24, 0, 25, 0, 13983 26, 0, 27, 0, 13984 28, 0, 29, 0, 13985 30, 0, 31, 0)); 13986 13987 /* DC maps received packets */ 13988 write_csr(dd, DCC_CFG_SC_VL_TABLE_15_0, DC_SC_VL_VAL( 13989 15_0, 13990 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 13991 8, 0, 9, 0, 10, 0, 11, 0, 12, 0, 13, 0, 14, 0, 15, 15)); 13992 write_csr(dd, DCC_CFG_SC_VL_TABLE_31_16, DC_SC_VL_VAL( 13993 31_16, 13994 16, 0, 17, 0, 18, 0, 19, 0, 20, 0, 21, 0, 22, 0, 23, 0, 13995 24, 0, 25, 0, 26, 0, 27, 0, 28, 0, 29, 0, 30, 0, 31, 0)); 13996 13997 /* initialize the cached sc2vl values consistently with h/w */ 13998 for (i = 0; i < 32; i++) { 13999 if (i < 8 || i == 15) 14000 *((u8 *)(dd->sc2vl) + i) = (u8)i; 14001 else 14002 *((u8 *)(dd->sc2vl) + i) = 0; 14003 } 14004 } 14005 14006 /* 14007 * Read chip sizes and then reset parts to sane, disabled, values. We cannot 14008 * depend on the chip going through a power-on reset - a driver may be loaded 14009 * and unloaded many times. 14010 * 14011 * Do not write any CSR values to the chip in this routine - there may be 14012 * a reset following the (possible) FLR in this routine. 14013 * 14014 */ 14015 static int init_chip(struct hfi1_devdata *dd) 14016 { 14017 int i; 14018 int ret = 0; 14019 14020 /* 14021 * Put the HFI CSRs in a known state. 14022 * Combine this with a DC reset. 14023 * 14024 * Stop the device from doing anything while we do a 14025 * reset. We know there are no other active users of 14026 * the device since we are now in charge. Turn off 14027 * off all outbound and inbound traffic and make sure 14028 * the device does not generate any interrupts. 14029 */ 14030 14031 /* disable send contexts and SDMA engines */ 14032 write_csr(dd, SEND_CTRL, 0); 14033 for (i = 0; i < chip_send_contexts(dd); i++) 14034 write_kctxt_csr(dd, i, SEND_CTXT_CTRL, 0); 14035 for (i = 0; i < chip_sdma_engines(dd); i++) 14036 write_kctxt_csr(dd, i, SEND_DMA_CTRL, 0); 14037 /* disable port (turn off RXE inbound traffic) and contexts */ 14038 write_csr(dd, RCV_CTRL, 0); 14039 for (i = 0; i < chip_rcv_contexts(dd); i++) 14040 write_csr(dd, RCV_CTXT_CTRL, 0); 14041 /* mask all interrupt sources */ 14042 for (i = 0; i < CCE_NUM_INT_CSRS; i++) 14043 write_csr(dd, CCE_INT_MASK + (8 * i), 0ull); 14044 14045 /* 14046 * DC Reset: do a full DC reset before the register clear. 14047 * A recommended length of time to hold is one CSR read, 14048 * so reread the CceDcCtrl. Then, hold the DC in reset 14049 * across the clear. 14050 */ 14051 write_csr(dd, CCE_DC_CTRL, CCE_DC_CTRL_DC_RESET_SMASK); 14052 (void)read_csr(dd, CCE_DC_CTRL); 14053 14054 if (use_flr) { 14055 /* 14056 * A FLR will reset the SPC core and part of the PCIe. 14057 * The parts that need to be restored have already been 14058 * saved. 14059 */ 14060 dd_dev_info(dd, "Resetting CSRs with FLR\n"); 14061 14062 /* do the FLR, the DC reset will remain */ 14063 pcie_flr(dd->pcidev); 14064 14065 /* restore command and BARs */ 14066 ret = restore_pci_variables(dd); 14067 if (ret) { 14068 dd_dev_err(dd, "%s: Could not restore PCI variables\n", 14069 __func__); 14070 return ret; 14071 } 14072 14073 if (is_ax(dd)) { 14074 dd_dev_info(dd, "Resetting CSRs with FLR\n"); 14075 pcie_flr(dd->pcidev); 14076 ret = restore_pci_variables(dd); 14077 if (ret) { 14078 dd_dev_err(dd, "%s: Could not restore PCI variables\n", 14079 __func__); 14080 return ret; 14081 } 14082 } 14083 } else { 14084 dd_dev_info(dd, "Resetting CSRs with writes\n"); 14085 reset_cce_csrs(dd); 14086 reset_txe_csrs(dd); 14087 reset_rxe_csrs(dd); 14088 reset_misc_csrs(dd); 14089 } 14090 /* clear the DC reset */ 14091 write_csr(dd, CCE_DC_CTRL, 0); 14092 14093 /* Set the LED off */ 14094 setextled(dd, 0); 14095 14096 /* 14097 * Clear the QSFP reset. 14098 * An FLR enforces a 0 on all out pins. The driver does not touch 14099 * ASIC_QSFPn_OUT otherwise. This leaves RESET_N low and 14100 * anything plugged constantly in reset, if it pays attention 14101 * to RESET_N. 14102 * Prime examples of this are optical cables. Set all pins high. 14103 * I2CCLK and I2CDAT will change per direction, and INT_N and 14104 * MODPRS_N are input only and their value is ignored. 14105 */ 14106 write_csr(dd, ASIC_QSFP1_OUT, 0x1f); 14107 write_csr(dd, ASIC_QSFP2_OUT, 0x1f); 14108 init_chip_resources(dd); 14109 return ret; 14110 } 14111 14112 static void init_early_variables(struct hfi1_devdata *dd) 14113 { 14114 int i; 14115 14116 /* assign link credit variables */ 14117 dd->vau = CM_VAU; 14118 dd->link_credits = CM_GLOBAL_CREDITS; 14119 if (is_ax(dd)) 14120 dd->link_credits--; 14121 dd->vcu = cu_to_vcu(hfi1_cu); 14122 /* enough room for 8 MAD packets plus header - 17K */ 14123 dd->vl15_init = (8 * (2048 + 128)) / vau_to_au(dd->vau); 14124 if (dd->vl15_init > dd->link_credits) 14125 dd->vl15_init = dd->link_credits; 14126 14127 write_uninitialized_csrs_and_memories(dd); 14128 14129 if (HFI1_CAP_IS_KSET(PKEY_CHECK)) 14130 for (i = 0; i < dd->num_pports; i++) { 14131 struct hfi1_pportdata *ppd = &dd->pport[i]; 14132 14133 set_partition_keys(ppd); 14134 } 14135 init_sc2vl_tables(dd); 14136 } 14137 14138 static void init_kdeth_qp(struct hfi1_devdata *dd) 14139 { 14140 write_csr(dd, SEND_BTH_QP, 14141 (RVT_KDETH_QP_PREFIX & SEND_BTH_QP_KDETH_QP_MASK) << 14142 SEND_BTH_QP_KDETH_QP_SHIFT); 14143 14144 write_csr(dd, RCV_BTH_QP, 14145 (RVT_KDETH_QP_PREFIX & RCV_BTH_QP_KDETH_QP_MASK) << 14146 RCV_BTH_QP_KDETH_QP_SHIFT); 14147 } 14148 14149 /** 14150 * hfi1_get_qp_map - get qp map 14151 * @dd: device data 14152 * @idx: index to read 14153 */ 14154 u8 hfi1_get_qp_map(struct hfi1_devdata *dd, u8 idx) 14155 { 14156 u64 reg = read_csr(dd, RCV_QP_MAP_TABLE + (idx / 8) * 8); 14157 14158 reg >>= (idx % 8) * 8; 14159 return reg; 14160 } 14161 14162 /** 14163 * init_qpmap_table - init qp map 14164 * @dd: device data 14165 * @first_ctxt: first context 14166 * @last_ctxt: first context 14167 * 14168 * This return sets the qpn mapping table that 14169 * is indexed by qpn[8:1]. 14170 * 14171 * The routine will round robin the 256 settings 14172 * from first_ctxt to last_ctxt. 14173 * 14174 * The first/last looks ahead to having specialized 14175 * receive contexts for mgmt and bypass. Normal 14176 * verbs traffic will assumed to be on a range 14177 * of receive contexts. 14178 */ 14179 static void init_qpmap_table(struct hfi1_devdata *dd, 14180 u32 first_ctxt, 14181 u32 last_ctxt) 14182 { 14183 u64 reg = 0; 14184 u64 regno = RCV_QP_MAP_TABLE; 14185 int i; 14186 u64 ctxt = first_ctxt; 14187 14188 for (i = 0; i < 256; i++) { 14189 reg |= ctxt << (8 * (i % 8)); 14190 ctxt++; 14191 if (ctxt > last_ctxt) 14192 ctxt = first_ctxt; 14193 if (i % 8 == 7) { 14194 write_csr(dd, regno, reg); 14195 reg = 0; 14196 regno += 8; 14197 } 14198 } 14199 14200 add_rcvctrl(dd, RCV_CTRL_RCV_QP_MAP_ENABLE_SMASK 14201 | RCV_CTRL_RCV_BYPASS_ENABLE_SMASK); 14202 } 14203 14204 struct rsm_map_table { 14205 u64 map[NUM_MAP_REGS]; 14206 unsigned int used; 14207 }; 14208 14209 struct rsm_rule_data { 14210 u8 offset; 14211 u8 pkt_type; 14212 u32 field1_off; 14213 u32 field2_off; 14214 u32 index1_off; 14215 u32 index1_width; 14216 u32 index2_off; 14217 u32 index2_width; 14218 u32 mask1; 14219 u32 value1; 14220 u32 mask2; 14221 u32 value2; 14222 }; 14223 14224 /* 14225 * Return an initialized RMT map table for users to fill in. OK if it 14226 * returns NULL, indicating no table. 14227 */ 14228 static struct rsm_map_table *alloc_rsm_map_table(struct hfi1_devdata *dd) 14229 { 14230 struct rsm_map_table *rmt; 14231 u8 rxcontext = is_ax(dd) ? 0 : 0xff; /* 0 is default if a0 ver. */ 14232 14233 rmt = kmalloc(sizeof(*rmt), GFP_KERNEL); 14234 if (rmt) { 14235 memset(rmt->map, rxcontext, sizeof(rmt->map)); 14236 rmt->used = 0; 14237 } 14238 14239 return rmt; 14240 } 14241 14242 /* 14243 * Write the final RMT map table to the chip and free the table. OK if 14244 * table is NULL. 14245 */ 14246 static void complete_rsm_map_table(struct hfi1_devdata *dd, 14247 struct rsm_map_table *rmt) 14248 { 14249 int i; 14250 14251 if (rmt) { 14252 /* write table to chip */ 14253 for (i = 0; i < NUM_MAP_REGS; i++) 14254 write_csr(dd, RCV_RSM_MAP_TABLE + (8 * i), rmt->map[i]); 14255 14256 /* enable RSM */ 14257 add_rcvctrl(dd, RCV_CTRL_RCV_RSM_ENABLE_SMASK); 14258 } 14259 } 14260 14261 /* Is a receive side mapping rule */ 14262 static bool has_rsm_rule(struct hfi1_devdata *dd, u8 rule_index) 14263 { 14264 return read_csr(dd, RCV_RSM_CFG + (8 * rule_index)) != 0; 14265 } 14266 14267 /* 14268 * Add a receive side mapping rule. 14269 */ 14270 static void add_rsm_rule(struct hfi1_devdata *dd, u8 rule_index, 14271 struct rsm_rule_data *rrd) 14272 { 14273 write_csr(dd, RCV_RSM_CFG + (8 * rule_index), 14274 (u64)rrd->offset << RCV_RSM_CFG_OFFSET_SHIFT | 14275 1ull << rule_index | /* enable bit */ 14276 (u64)rrd->pkt_type << RCV_RSM_CFG_PACKET_TYPE_SHIFT); 14277 write_csr(dd, RCV_RSM_SELECT + (8 * rule_index), 14278 (u64)rrd->field1_off << RCV_RSM_SELECT_FIELD1_OFFSET_SHIFT | 14279 (u64)rrd->field2_off << RCV_RSM_SELECT_FIELD2_OFFSET_SHIFT | 14280 (u64)rrd->index1_off << RCV_RSM_SELECT_INDEX1_OFFSET_SHIFT | 14281 (u64)rrd->index1_width << RCV_RSM_SELECT_INDEX1_WIDTH_SHIFT | 14282 (u64)rrd->index2_off << RCV_RSM_SELECT_INDEX2_OFFSET_SHIFT | 14283 (u64)rrd->index2_width << RCV_RSM_SELECT_INDEX2_WIDTH_SHIFT); 14284 write_csr(dd, RCV_RSM_MATCH + (8 * rule_index), 14285 (u64)rrd->mask1 << RCV_RSM_MATCH_MASK1_SHIFT | 14286 (u64)rrd->value1 << RCV_RSM_MATCH_VALUE1_SHIFT | 14287 (u64)rrd->mask2 << RCV_RSM_MATCH_MASK2_SHIFT | 14288 (u64)rrd->value2 << RCV_RSM_MATCH_VALUE2_SHIFT); 14289 } 14290 14291 /* 14292 * Clear a receive side mapping rule. 14293 */ 14294 static void clear_rsm_rule(struct hfi1_devdata *dd, u8 rule_index) 14295 { 14296 write_csr(dd, RCV_RSM_CFG + (8 * rule_index), 0); 14297 write_csr(dd, RCV_RSM_SELECT + (8 * rule_index), 0); 14298 write_csr(dd, RCV_RSM_MATCH + (8 * rule_index), 0); 14299 } 14300 14301 /* return the number of RSM map table entries that will be used for QOS */ 14302 static int qos_rmt_entries(struct hfi1_devdata *dd, unsigned int *mp, 14303 unsigned int *np) 14304 { 14305 int i; 14306 unsigned int m, n; 14307 u8 max_by_vl = 0; 14308 14309 /* is QOS active at all? */ 14310 if (dd->n_krcv_queues <= MIN_KERNEL_KCTXTS || 14311 num_vls == 1 || 14312 krcvqsset <= 1) 14313 goto no_qos; 14314 14315 /* determine bits for qpn */ 14316 for (i = 0; i < min_t(unsigned int, num_vls, krcvqsset); i++) 14317 if (krcvqs[i] > max_by_vl) 14318 max_by_vl = krcvqs[i]; 14319 if (max_by_vl > 32) 14320 goto no_qos; 14321 m = ilog2(__roundup_pow_of_two(max_by_vl)); 14322 14323 /* determine bits for vl */ 14324 n = ilog2(__roundup_pow_of_two(num_vls)); 14325 14326 /* reject if too much is used */ 14327 if ((m + n) > 7) 14328 goto no_qos; 14329 14330 if (mp) 14331 *mp = m; 14332 if (np) 14333 *np = n; 14334 14335 return 1 << (m + n); 14336 14337 no_qos: 14338 if (mp) 14339 *mp = 0; 14340 if (np) 14341 *np = 0; 14342 return 0; 14343 } 14344 14345 /** 14346 * init_qos - init RX qos 14347 * @dd: device data 14348 * @rmt: RSM map table 14349 * 14350 * This routine initializes Rule 0 and the RSM map table to implement 14351 * quality of service (qos). 14352 * 14353 * If all of the limit tests succeed, qos is applied based on the array 14354 * interpretation of krcvqs where entry 0 is VL0. 14355 * 14356 * The number of vl bits (n) and the number of qpn bits (m) are computed to 14357 * feed both the RSM map table and the single rule. 14358 */ 14359 static void init_qos(struct hfi1_devdata *dd, struct rsm_map_table *rmt) 14360 { 14361 struct rsm_rule_data rrd; 14362 unsigned qpns_per_vl, ctxt, i, qpn, n = 1, m; 14363 unsigned int rmt_entries; 14364 u64 reg; 14365 14366 if (!rmt) 14367 goto bail; 14368 rmt_entries = qos_rmt_entries(dd, &m, &n); 14369 if (rmt_entries == 0) 14370 goto bail; 14371 qpns_per_vl = 1 << m; 14372 14373 /* enough room in the map table? */ 14374 rmt_entries = 1 << (m + n); 14375 if (rmt->used + rmt_entries >= NUM_MAP_ENTRIES) 14376 goto bail; 14377 14378 /* add qos entries to the RSM map table */ 14379 for (i = 0, ctxt = FIRST_KERNEL_KCTXT; i < num_vls; i++) { 14380 unsigned tctxt; 14381 14382 for (qpn = 0, tctxt = ctxt; 14383 krcvqs[i] && qpn < qpns_per_vl; qpn++) { 14384 unsigned idx, regoff, regidx; 14385 14386 /* generate the index the hardware will produce */ 14387 idx = rmt->used + ((qpn << n) ^ i); 14388 regoff = (idx % 8) * 8; 14389 regidx = idx / 8; 14390 /* replace default with context number */ 14391 reg = rmt->map[regidx]; 14392 reg &= ~(RCV_RSM_MAP_TABLE_RCV_CONTEXT_A_MASK 14393 << regoff); 14394 reg |= (u64)(tctxt++) << regoff; 14395 rmt->map[regidx] = reg; 14396 if (tctxt == ctxt + krcvqs[i]) 14397 tctxt = ctxt; 14398 } 14399 ctxt += krcvqs[i]; 14400 } 14401 14402 rrd.offset = rmt->used; 14403 rrd.pkt_type = 2; 14404 rrd.field1_off = LRH_BTH_MATCH_OFFSET; 14405 rrd.field2_off = LRH_SC_MATCH_OFFSET; 14406 rrd.index1_off = LRH_SC_SELECT_OFFSET; 14407 rrd.index1_width = n; 14408 rrd.index2_off = QPN_SELECT_OFFSET; 14409 rrd.index2_width = m + n; 14410 rrd.mask1 = LRH_BTH_MASK; 14411 rrd.value1 = LRH_BTH_VALUE; 14412 rrd.mask2 = LRH_SC_MASK; 14413 rrd.value2 = LRH_SC_VALUE; 14414 14415 /* add rule 0 */ 14416 add_rsm_rule(dd, RSM_INS_VERBS, &rrd); 14417 14418 /* mark RSM map entries as used */ 14419 rmt->used += rmt_entries; 14420 /* map everything else to the mcast/err/vl15 context */ 14421 init_qpmap_table(dd, HFI1_CTRL_CTXT, HFI1_CTRL_CTXT); 14422 dd->qos_shift = n + 1; 14423 return; 14424 bail: 14425 dd->qos_shift = 1; 14426 init_qpmap_table(dd, FIRST_KERNEL_KCTXT, dd->n_krcv_queues - 1); 14427 } 14428 14429 static void init_fecn_handling(struct hfi1_devdata *dd, 14430 struct rsm_map_table *rmt) 14431 { 14432 struct rsm_rule_data rrd; 14433 u64 reg; 14434 int i, idx, regoff, regidx, start; 14435 u8 offset; 14436 u32 total_cnt; 14437 14438 if (HFI1_CAP_IS_KSET(TID_RDMA)) 14439 /* Exclude context 0 */ 14440 start = 1; 14441 else 14442 start = dd->first_dyn_alloc_ctxt; 14443 14444 total_cnt = dd->num_rcv_contexts - start; 14445 14446 /* there needs to be enough room in the map table */ 14447 if (rmt->used + total_cnt >= NUM_MAP_ENTRIES) { 14448 dd_dev_err(dd, "FECN handling disabled - too many contexts allocated\n"); 14449 return; 14450 } 14451 14452 /* 14453 * RSM will extract the destination context as an index into the 14454 * map table. The destination contexts are a sequential block 14455 * in the range start...num_rcv_contexts-1 (inclusive). 14456 * Map entries are accessed as offset + extracted value. Adjust 14457 * the added offset so this sequence can be placed anywhere in 14458 * the table - as long as the entries themselves do not wrap. 14459 * There are only enough bits in offset for the table size, so 14460 * start with that to allow for a "negative" offset. 14461 */ 14462 offset = (u8)(NUM_MAP_ENTRIES + rmt->used - start); 14463 14464 for (i = start, idx = rmt->used; i < dd->num_rcv_contexts; 14465 i++, idx++) { 14466 /* replace with identity mapping */ 14467 regoff = (idx % 8) * 8; 14468 regidx = idx / 8; 14469 reg = rmt->map[regidx]; 14470 reg &= ~(RCV_RSM_MAP_TABLE_RCV_CONTEXT_A_MASK << regoff); 14471 reg |= (u64)i << regoff; 14472 rmt->map[regidx] = reg; 14473 } 14474 14475 /* 14476 * For RSM intercept of Expected FECN packets: 14477 * o packet type 0 - expected 14478 * o match on F (bit 95), using select/match 1, and 14479 * o match on SH (bit 133), using select/match 2. 14480 * 14481 * Use index 1 to extract the 8-bit receive context from DestQP 14482 * (start at bit 64). Use that as the RSM map table index. 14483 */ 14484 rrd.offset = offset; 14485 rrd.pkt_type = 0; 14486 rrd.field1_off = 95; 14487 rrd.field2_off = 133; 14488 rrd.index1_off = 64; 14489 rrd.index1_width = 8; 14490 rrd.index2_off = 0; 14491 rrd.index2_width = 0; 14492 rrd.mask1 = 1; 14493 rrd.value1 = 1; 14494 rrd.mask2 = 1; 14495 rrd.value2 = 1; 14496 14497 /* add rule 1 */ 14498 add_rsm_rule(dd, RSM_INS_FECN, &rrd); 14499 14500 rmt->used += total_cnt; 14501 } 14502 14503 static inline bool hfi1_is_rmt_full(int start, int spare) 14504 { 14505 return (start + spare) > NUM_MAP_ENTRIES; 14506 } 14507 14508 static bool hfi1_netdev_update_rmt(struct hfi1_devdata *dd) 14509 { 14510 u8 i, j; 14511 u8 ctx_id = 0; 14512 u64 reg; 14513 u32 regoff; 14514 int rmt_start = hfi1_netdev_get_free_rmt_idx(dd); 14515 int ctxt_count = hfi1_netdev_ctxt_count(dd); 14516 14517 /* We already have contexts mapped in RMT */ 14518 if (has_rsm_rule(dd, RSM_INS_VNIC) || has_rsm_rule(dd, RSM_INS_AIP)) { 14519 dd_dev_info(dd, "Contexts are already mapped in RMT\n"); 14520 return true; 14521 } 14522 14523 if (hfi1_is_rmt_full(rmt_start, NUM_NETDEV_MAP_ENTRIES)) { 14524 dd_dev_err(dd, "Not enough RMT entries used = %d\n", 14525 rmt_start); 14526 return false; 14527 } 14528 14529 dev_dbg(&(dd)->pcidev->dev, "RMT start = %d, end %d\n", 14530 rmt_start, 14531 rmt_start + NUM_NETDEV_MAP_ENTRIES); 14532 14533 /* Update RSM mapping table, 32 regs, 256 entries - 1 ctx per byte */ 14534 regoff = RCV_RSM_MAP_TABLE + (rmt_start / 8) * 8; 14535 reg = read_csr(dd, regoff); 14536 for (i = 0; i < NUM_NETDEV_MAP_ENTRIES; i++) { 14537 /* Update map register with netdev context */ 14538 j = (rmt_start + i) % 8; 14539 reg &= ~(0xffllu << (j * 8)); 14540 reg |= (u64)hfi1_netdev_get_ctxt(dd, ctx_id++)->ctxt << (j * 8); 14541 /* Wrap up netdev ctx index */ 14542 ctx_id %= ctxt_count; 14543 /* Write back map register */ 14544 if (j == 7 || ((i + 1) == NUM_NETDEV_MAP_ENTRIES)) { 14545 dev_dbg(&(dd)->pcidev->dev, 14546 "RMT[%d] =0x%llx\n", 14547 regoff - RCV_RSM_MAP_TABLE, reg); 14548 14549 write_csr(dd, regoff, reg); 14550 regoff += 8; 14551 if (i < (NUM_NETDEV_MAP_ENTRIES - 1)) 14552 reg = read_csr(dd, regoff); 14553 } 14554 } 14555 14556 return true; 14557 } 14558 14559 static void hfi1_enable_rsm_rule(struct hfi1_devdata *dd, 14560 int rule, struct rsm_rule_data *rrd) 14561 { 14562 if (!hfi1_netdev_update_rmt(dd)) { 14563 dd_dev_err(dd, "Failed to update RMT for RSM%d rule\n", rule); 14564 return; 14565 } 14566 14567 add_rsm_rule(dd, rule, rrd); 14568 add_rcvctrl(dd, RCV_CTRL_RCV_RSM_ENABLE_SMASK); 14569 } 14570 14571 void hfi1_init_aip_rsm(struct hfi1_devdata *dd) 14572 { 14573 /* 14574 * go through with the initialisation only if this rule actually doesn't 14575 * exist yet 14576 */ 14577 if (atomic_fetch_inc(&dd->ipoib_rsm_usr_num) == 0) { 14578 int rmt_start = hfi1_netdev_get_free_rmt_idx(dd); 14579 struct rsm_rule_data rrd = { 14580 .offset = rmt_start, 14581 .pkt_type = IB_PACKET_TYPE, 14582 .field1_off = LRH_BTH_MATCH_OFFSET, 14583 .mask1 = LRH_BTH_MASK, 14584 .value1 = LRH_BTH_VALUE, 14585 .field2_off = BTH_DESTQP_MATCH_OFFSET, 14586 .mask2 = BTH_DESTQP_MASK, 14587 .value2 = BTH_DESTQP_VALUE, 14588 .index1_off = DETH_AIP_SQPN_SELECT_OFFSET + 14589 ilog2(NUM_NETDEV_MAP_ENTRIES), 14590 .index1_width = ilog2(NUM_NETDEV_MAP_ENTRIES), 14591 .index2_off = DETH_AIP_SQPN_SELECT_OFFSET, 14592 .index2_width = ilog2(NUM_NETDEV_MAP_ENTRIES) 14593 }; 14594 14595 hfi1_enable_rsm_rule(dd, RSM_INS_AIP, &rrd); 14596 } 14597 } 14598 14599 /* Initialize RSM for VNIC */ 14600 void hfi1_init_vnic_rsm(struct hfi1_devdata *dd) 14601 { 14602 int rmt_start = hfi1_netdev_get_free_rmt_idx(dd); 14603 struct rsm_rule_data rrd = { 14604 /* Add rule for vnic */ 14605 .offset = rmt_start, 14606 .pkt_type = 4, 14607 /* Match 16B packets */ 14608 .field1_off = L2_TYPE_MATCH_OFFSET, 14609 .mask1 = L2_TYPE_MASK, 14610 .value1 = L2_16B_VALUE, 14611 /* Match ETH L4 packets */ 14612 .field2_off = L4_TYPE_MATCH_OFFSET, 14613 .mask2 = L4_16B_TYPE_MASK, 14614 .value2 = L4_16B_ETH_VALUE, 14615 /* Calc context from veswid and entropy */ 14616 .index1_off = L4_16B_HDR_VESWID_OFFSET, 14617 .index1_width = ilog2(NUM_NETDEV_MAP_ENTRIES), 14618 .index2_off = L2_16B_ENTROPY_OFFSET, 14619 .index2_width = ilog2(NUM_NETDEV_MAP_ENTRIES) 14620 }; 14621 14622 hfi1_enable_rsm_rule(dd, RSM_INS_VNIC, &rrd); 14623 } 14624 14625 void hfi1_deinit_vnic_rsm(struct hfi1_devdata *dd) 14626 { 14627 clear_rsm_rule(dd, RSM_INS_VNIC); 14628 } 14629 14630 void hfi1_deinit_aip_rsm(struct hfi1_devdata *dd) 14631 { 14632 /* only actually clear the rule if it's the last user asking to do so */ 14633 if (atomic_fetch_add_unless(&dd->ipoib_rsm_usr_num, -1, 0) == 1) 14634 clear_rsm_rule(dd, RSM_INS_AIP); 14635 } 14636 14637 static int init_rxe(struct hfi1_devdata *dd) 14638 { 14639 struct rsm_map_table *rmt; 14640 u64 val; 14641 14642 /* enable all receive errors */ 14643 write_csr(dd, RCV_ERR_MASK, ~0ull); 14644 14645 rmt = alloc_rsm_map_table(dd); 14646 if (!rmt) 14647 return -ENOMEM; 14648 14649 /* set up QOS, including the QPN map table */ 14650 init_qos(dd, rmt); 14651 init_fecn_handling(dd, rmt); 14652 complete_rsm_map_table(dd, rmt); 14653 /* record number of used rsm map entries for netdev */ 14654 hfi1_netdev_set_free_rmt_idx(dd, rmt->used); 14655 kfree(rmt); 14656 14657 /* 14658 * make sure RcvCtrl.RcvWcb <= PCIe Device Control 14659 * Register Max_Payload_Size (PCI_EXP_DEVCTL in Linux PCIe config 14660 * space, PciCfgCap2.MaxPayloadSize in HFI). There is only one 14661 * invalid configuration: RcvCtrl.RcvWcb set to its max of 256 and 14662 * Max_PayLoad_Size set to its minimum of 128. 14663 * 14664 * Presently, RcvCtrl.RcvWcb is not modified from its default of 0 14665 * (64 bytes). Max_Payload_Size is possibly modified upward in 14666 * tune_pcie_caps() which is called after this routine. 14667 */ 14668 14669 /* Have 16 bytes (4DW) of bypass header available in header queue */ 14670 val = read_csr(dd, RCV_BYPASS); 14671 val &= ~RCV_BYPASS_HDR_SIZE_SMASK; 14672 val |= ((4ull & RCV_BYPASS_HDR_SIZE_MASK) << 14673 RCV_BYPASS_HDR_SIZE_SHIFT); 14674 write_csr(dd, RCV_BYPASS, val); 14675 return 0; 14676 } 14677 14678 static void init_other(struct hfi1_devdata *dd) 14679 { 14680 /* enable all CCE errors */ 14681 write_csr(dd, CCE_ERR_MASK, ~0ull); 14682 /* enable *some* Misc errors */ 14683 write_csr(dd, MISC_ERR_MASK, DRIVER_MISC_MASK); 14684 /* enable all DC errors, except LCB */ 14685 write_csr(dd, DCC_ERR_FLG_EN, ~0ull); 14686 write_csr(dd, DC_DC8051_ERR_EN, ~0ull); 14687 } 14688 14689 /* 14690 * Fill out the given AU table using the given CU. A CU is defined in terms 14691 * AUs. The table is a an encoding: given the index, how many AUs does that 14692 * represent? 14693 * 14694 * NOTE: Assumes that the register layout is the same for the 14695 * local and remote tables. 14696 */ 14697 static void assign_cm_au_table(struct hfi1_devdata *dd, u32 cu, 14698 u32 csr0to3, u32 csr4to7) 14699 { 14700 write_csr(dd, csr0to3, 14701 0ull << SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE0_SHIFT | 14702 1ull << SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE1_SHIFT | 14703 2ull * cu << 14704 SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE2_SHIFT | 14705 4ull * cu << 14706 SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE3_SHIFT); 14707 write_csr(dd, csr4to7, 14708 8ull * cu << 14709 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE4_SHIFT | 14710 16ull * cu << 14711 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE5_SHIFT | 14712 32ull * cu << 14713 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE6_SHIFT | 14714 64ull * cu << 14715 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE7_SHIFT); 14716 } 14717 14718 static void assign_local_cm_au_table(struct hfi1_devdata *dd, u8 vcu) 14719 { 14720 assign_cm_au_table(dd, vcu_to_cu(vcu), SEND_CM_LOCAL_AU_TABLE0_TO3, 14721 SEND_CM_LOCAL_AU_TABLE4_TO7); 14722 } 14723 14724 void assign_remote_cm_au_table(struct hfi1_devdata *dd, u8 vcu) 14725 { 14726 assign_cm_au_table(dd, vcu_to_cu(vcu), SEND_CM_REMOTE_AU_TABLE0_TO3, 14727 SEND_CM_REMOTE_AU_TABLE4_TO7); 14728 } 14729 14730 static void init_txe(struct hfi1_devdata *dd) 14731 { 14732 int i; 14733 14734 /* enable all PIO, SDMA, general, and Egress errors */ 14735 write_csr(dd, SEND_PIO_ERR_MASK, ~0ull); 14736 write_csr(dd, SEND_DMA_ERR_MASK, ~0ull); 14737 write_csr(dd, SEND_ERR_MASK, ~0ull); 14738 write_csr(dd, SEND_EGRESS_ERR_MASK, ~0ull); 14739 14740 /* enable all per-context and per-SDMA engine errors */ 14741 for (i = 0; i < chip_send_contexts(dd); i++) 14742 write_kctxt_csr(dd, i, SEND_CTXT_ERR_MASK, ~0ull); 14743 for (i = 0; i < chip_sdma_engines(dd); i++) 14744 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_MASK, ~0ull); 14745 14746 /* set the local CU to AU mapping */ 14747 assign_local_cm_au_table(dd, dd->vcu); 14748 14749 /* 14750 * Set reasonable default for Credit Return Timer 14751 * Don't set on Simulator - causes it to choke. 14752 */ 14753 if (dd->icode != ICODE_FUNCTIONAL_SIMULATOR) 14754 write_csr(dd, SEND_CM_TIMER_CTRL, HFI1_CREDIT_RETURN_RATE); 14755 } 14756 14757 int hfi1_set_ctxt_jkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd, 14758 u16 jkey) 14759 { 14760 u8 hw_ctxt; 14761 u64 reg; 14762 14763 if (!rcd || !rcd->sc) 14764 return -EINVAL; 14765 14766 hw_ctxt = rcd->sc->hw_context; 14767 reg = SEND_CTXT_CHECK_JOB_KEY_MASK_SMASK | /* mask is always 1's */ 14768 ((jkey & SEND_CTXT_CHECK_JOB_KEY_VALUE_MASK) << 14769 SEND_CTXT_CHECK_JOB_KEY_VALUE_SHIFT); 14770 /* JOB_KEY_ALLOW_PERMISSIVE is not allowed by default */ 14771 if (HFI1_CAP_KGET_MASK(rcd->flags, ALLOW_PERM_JKEY)) 14772 reg |= SEND_CTXT_CHECK_JOB_KEY_ALLOW_PERMISSIVE_SMASK; 14773 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_JOB_KEY, reg); 14774 /* 14775 * Enable send-side J_KEY integrity check, unless this is A0 h/w 14776 */ 14777 if (!is_ax(dd)) { 14778 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14779 reg |= SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK; 14780 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14781 } 14782 14783 /* Enable J_KEY check on receive context. */ 14784 reg = RCV_KEY_CTRL_JOB_KEY_ENABLE_SMASK | 14785 ((jkey & RCV_KEY_CTRL_JOB_KEY_VALUE_MASK) << 14786 RCV_KEY_CTRL_JOB_KEY_VALUE_SHIFT); 14787 write_kctxt_csr(dd, rcd->ctxt, RCV_KEY_CTRL, reg); 14788 14789 return 0; 14790 } 14791 14792 int hfi1_clear_ctxt_jkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd) 14793 { 14794 u8 hw_ctxt; 14795 u64 reg; 14796 14797 if (!rcd || !rcd->sc) 14798 return -EINVAL; 14799 14800 hw_ctxt = rcd->sc->hw_context; 14801 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_JOB_KEY, 0); 14802 /* 14803 * Disable send-side J_KEY integrity check, unless this is A0 h/w. 14804 * This check would not have been enabled for A0 h/w, see 14805 * set_ctxt_jkey(). 14806 */ 14807 if (!is_ax(dd)) { 14808 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14809 reg &= ~SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK; 14810 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14811 } 14812 /* Turn off the J_KEY on the receive side */ 14813 write_kctxt_csr(dd, rcd->ctxt, RCV_KEY_CTRL, 0); 14814 14815 return 0; 14816 } 14817 14818 int hfi1_set_ctxt_pkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd, 14819 u16 pkey) 14820 { 14821 u8 hw_ctxt; 14822 u64 reg; 14823 14824 if (!rcd || !rcd->sc) 14825 return -EINVAL; 14826 14827 hw_ctxt = rcd->sc->hw_context; 14828 reg = ((u64)pkey & SEND_CTXT_CHECK_PARTITION_KEY_VALUE_MASK) << 14829 SEND_CTXT_CHECK_PARTITION_KEY_VALUE_SHIFT; 14830 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_PARTITION_KEY, reg); 14831 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14832 reg |= SEND_CTXT_CHECK_ENABLE_CHECK_PARTITION_KEY_SMASK; 14833 reg &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_KDETH_PACKETS_SMASK; 14834 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14835 14836 return 0; 14837 } 14838 14839 int hfi1_clear_ctxt_pkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *ctxt) 14840 { 14841 u8 hw_ctxt; 14842 u64 reg; 14843 14844 if (!ctxt || !ctxt->sc) 14845 return -EINVAL; 14846 14847 hw_ctxt = ctxt->sc->hw_context; 14848 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14849 reg &= ~SEND_CTXT_CHECK_ENABLE_CHECK_PARTITION_KEY_SMASK; 14850 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14851 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_PARTITION_KEY, 0); 14852 14853 return 0; 14854 } 14855 14856 /* 14857 * Start doing the clean up the chip. Our clean up happens in multiple 14858 * stages and this is just the first. 14859 */ 14860 void hfi1_start_cleanup(struct hfi1_devdata *dd) 14861 { 14862 aspm_exit(dd); 14863 free_cntrs(dd); 14864 free_rcverr(dd); 14865 finish_chip_resources(dd); 14866 } 14867 14868 #define HFI_BASE_GUID(dev) \ 14869 ((dev)->base_guid & ~(1ULL << GUID_HFI_INDEX_SHIFT)) 14870 14871 /* 14872 * Information can be shared between the two HFIs on the same ASIC 14873 * in the same OS. This function finds the peer device and sets 14874 * up a shared structure. 14875 */ 14876 static int init_asic_data(struct hfi1_devdata *dd) 14877 { 14878 unsigned long index; 14879 struct hfi1_devdata *peer; 14880 struct hfi1_asic_data *asic_data; 14881 int ret = 0; 14882 14883 /* pre-allocate the asic structure in case we are the first device */ 14884 asic_data = kzalloc(sizeof(*dd->asic_data), GFP_KERNEL); 14885 if (!asic_data) 14886 return -ENOMEM; 14887 14888 xa_lock_irq(&hfi1_dev_table); 14889 /* Find our peer device */ 14890 xa_for_each(&hfi1_dev_table, index, peer) { 14891 if ((HFI_BASE_GUID(dd) == HFI_BASE_GUID(peer)) && 14892 dd->unit != peer->unit) 14893 break; 14894 } 14895 14896 if (peer) { 14897 /* use already allocated structure */ 14898 dd->asic_data = peer->asic_data; 14899 kfree(asic_data); 14900 } else { 14901 dd->asic_data = asic_data; 14902 mutex_init(&dd->asic_data->asic_resource_mutex); 14903 } 14904 dd->asic_data->dds[dd->hfi1_id] = dd; /* self back-pointer */ 14905 xa_unlock_irq(&hfi1_dev_table); 14906 14907 /* first one through - set up i2c devices */ 14908 if (!peer) 14909 ret = set_up_i2c(dd, dd->asic_data); 14910 14911 return ret; 14912 } 14913 14914 /* 14915 * Set dd->boardname. Use a generic name if a name is not returned from 14916 * EFI variable space. 14917 * 14918 * Return 0 on success, -ENOMEM if space could not be allocated. 14919 */ 14920 static int obtain_boardname(struct hfi1_devdata *dd) 14921 { 14922 /* generic board description */ 14923 const char generic[] = 14924 "Cornelis Omni-Path Host Fabric Interface Adapter 100 Series"; 14925 unsigned long size; 14926 int ret; 14927 14928 ret = read_hfi1_efi_var(dd, "description", &size, 14929 (void **)&dd->boardname); 14930 if (ret) { 14931 dd_dev_info(dd, "Board description not found\n"); 14932 /* use generic description */ 14933 dd->boardname = kstrdup(generic, GFP_KERNEL); 14934 if (!dd->boardname) 14935 return -ENOMEM; 14936 } 14937 return 0; 14938 } 14939 14940 /* 14941 * Check the interrupt registers to make sure that they are mapped correctly. 14942 * It is intended to help user identify any mismapping by VMM when the driver 14943 * is running in a VM. This function should only be called before interrupt 14944 * is set up properly. 14945 * 14946 * Return 0 on success, -EINVAL on failure. 14947 */ 14948 static int check_int_registers(struct hfi1_devdata *dd) 14949 { 14950 u64 reg; 14951 u64 all_bits = ~(u64)0; 14952 u64 mask; 14953 14954 /* Clear CceIntMask[0] to avoid raising any interrupts */ 14955 mask = read_csr(dd, CCE_INT_MASK); 14956 write_csr(dd, CCE_INT_MASK, 0ull); 14957 reg = read_csr(dd, CCE_INT_MASK); 14958 if (reg) 14959 goto err_exit; 14960 14961 /* Clear all interrupt status bits */ 14962 write_csr(dd, CCE_INT_CLEAR, all_bits); 14963 reg = read_csr(dd, CCE_INT_STATUS); 14964 if (reg) 14965 goto err_exit; 14966 14967 /* Set all interrupt status bits */ 14968 write_csr(dd, CCE_INT_FORCE, all_bits); 14969 reg = read_csr(dd, CCE_INT_STATUS); 14970 if (reg != all_bits) 14971 goto err_exit; 14972 14973 /* Restore the interrupt mask */ 14974 write_csr(dd, CCE_INT_CLEAR, all_bits); 14975 write_csr(dd, CCE_INT_MASK, mask); 14976 14977 return 0; 14978 err_exit: 14979 write_csr(dd, CCE_INT_MASK, mask); 14980 dd_dev_err(dd, "Interrupt registers not properly mapped by VMM\n"); 14981 return -EINVAL; 14982 } 14983 14984 /** 14985 * hfi1_init_dd() - Initialize most of the dd structure. 14986 * @dd: the dd device 14987 * 14988 * This is global, and is called directly at init to set up the 14989 * chip-specific function pointers for later use. 14990 */ 14991 int hfi1_init_dd(struct hfi1_devdata *dd) 14992 { 14993 struct pci_dev *pdev = dd->pcidev; 14994 struct hfi1_pportdata *ppd; 14995 u64 reg; 14996 int i, ret; 14997 static const char * const inames[] = { /* implementation names */ 14998 "RTL silicon", 14999 "RTL VCS simulation", 15000 "RTL FPGA emulation", 15001 "Functional simulator" 15002 }; 15003 struct pci_dev *parent = pdev->bus->self; 15004 u32 sdma_engines = chip_sdma_engines(dd); 15005 15006 ppd = dd->pport; 15007 for (i = 0; i < dd->num_pports; i++, ppd++) { 15008 int vl; 15009 /* init common fields */ 15010 hfi1_init_pportdata(pdev, ppd, dd, 0, 1); 15011 /* DC supports 4 link widths */ 15012 ppd->link_width_supported = 15013 OPA_LINK_WIDTH_1X | OPA_LINK_WIDTH_2X | 15014 OPA_LINK_WIDTH_3X | OPA_LINK_WIDTH_4X; 15015 ppd->link_width_downgrade_supported = 15016 ppd->link_width_supported; 15017 /* start out enabling only 4X */ 15018 ppd->link_width_enabled = OPA_LINK_WIDTH_4X; 15019 ppd->link_width_downgrade_enabled = 15020 ppd->link_width_downgrade_supported; 15021 /* link width active is 0 when link is down */ 15022 /* link width downgrade active is 0 when link is down */ 15023 15024 if (num_vls < HFI1_MIN_VLS_SUPPORTED || 15025 num_vls > HFI1_MAX_VLS_SUPPORTED) { 15026 dd_dev_err(dd, "Invalid num_vls %u, using %u VLs\n", 15027 num_vls, HFI1_MAX_VLS_SUPPORTED); 15028 num_vls = HFI1_MAX_VLS_SUPPORTED; 15029 } 15030 ppd->vls_supported = num_vls; 15031 ppd->vls_operational = ppd->vls_supported; 15032 /* Set the default MTU. */ 15033 for (vl = 0; vl < num_vls; vl++) 15034 dd->vld[vl].mtu = hfi1_max_mtu; 15035 dd->vld[15].mtu = MAX_MAD_PACKET; 15036 /* 15037 * Set the initial values to reasonable default, will be set 15038 * for real when link is up. 15039 */ 15040 ppd->overrun_threshold = 0x4; 15041 ppd->phy_error_threshold = 0xf; 15042 ppd->port_crc_mode_enabled = link_crc_mask; 15043 /* initialize supported LTP CRC mode */ 15044 ppd->port_ltp_crc_mode = cap_to_port_ltp(link_crc_mask) << 8; 15045 /* initialize enabled LTP CRC mode */ 15046 ppd->port_ltp_crc_mode |= cap_to_port_ltp(link_crc_mask) << 4; 15047 /* start in offline */ 15048 ppd->host_link_state = HLS_DN_OFFLINE; 15049 init_vl_arb_caches(ppd); 15050 } 15051 15052 /* 15053 * Do remaining PCIe setup and save PCIe values in dd. 15054 * Any error printing is already done by the init code. 15055 * On return, we have the chip mapped. 15056 */ 15057 ret = hfi1_pcie_ddinit(dd, pdev); 15058 if (ret < 0) 15059 goto bail_free; 15060 15061 /* Save PCI space registers to rewrite after device reset */ 15062 ret = save_pci_variables(dd); 15063 if (ret < 0) 15064 goto bail_cleanup; 15065 15066 dd->majrev = (dd->revision >> CCE_REVISION_CHIP_REV_MAJOR_SHIFT) 15067 & CCE_REVISION_CHIP_REV_MAJOR_MASK; 15068 dd->minrev = (dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT) 15069 & CCE_REVISION_CHIP_REV_MINOR_MASK; 15070 15071 /* 15072 * Check interrupt registers mapping if the driver has no access to 15073 * the upstream component. In this case, it is likely that the driver 15074 * is running in a VM. 15075 */ 15076 if (!parent) { 15077 ret = check_int_registers(dd); 15078 if (ret) 15079 goto bail_cleanup; 15080 } 15081 15082 /* 15083 * obtain the hardware ID - NOT related to unit, which is a 15084 * software enumeration 15085 */ 15086 reg = read_csr(dd, CCE_REVISION2); 15087 dd->hfi1_id = (reg >> CCE_REVISION2_HFI_ID_SHIFT) 15088 & CCE_REVISION2_HFI_ID_MASK; 15089 /* the variable size will remove unwanted bits */ 15090 dd->icode = reg >> CCE_REVISION2_IMPL_CODE_SHIFT; 15091 dd->irev = reg >> CCE_REVISION2_IMPL_REVISION_SHIFT; 15092 dd_dev_info(dd, "Implementation: %s, revision 0x%x\n", 15093 dd->icode < ARRAY_SIZE(inames) ? 15094 inames[dd->icode] : "unknown", (int)dd->irev); 15095 15096 /* speeds the hardware can support */ 15097 dd->pport->link_speed_supported = OPA_LINK_SPEED_25G; 15098 /* speeds allowed to run at */ 15099 dd->pport->link_speed_enabled = dd->pport->link_speed_supported; 15100 /* give a reasonable active value, will be set on link up */ 15101 dd->pport->link_speed_active = OPA_LINK_SPEED_25G; 15102 15103 /* fix up link widths for emulation _p */ 15104 ppd = dd->pport; 15105 if (dd->icode == ICODE_FPGA_EMULATION && is_emulator_p(dd)) { 15106 ppd->link_width_supported = 15107 ppd->link_width_enabled = 15108 ppd->link_width_downgrade_supported = 15109 ppd->link_width_downgrade_enabled = 15110 OPA_LINK_WIDTH_1X; 15111 } 15112 /* insure num_vls isn't larger than number of sdma engines */ 15113 if (HFI1_CAP_IS_KSET(SDMA) && num_vls > sdma_engines) { 15114 dd_dev_err(dd, "num_vls %u too large, using %u VLs\n", 15115 num_vls, sdma_engines); 15116 num_vls = sdma_engines; 15117 ppd->vls_supported = sdma_engines; 15118 ppd->vls_operational = ppd->vls_supported; 15119 } 15120 15121 /* 15122 * Convert the ns parameter to the 64 * cclocks used in the CSR. 15123 * Limit the max if larger than the field holds. If timeout is 15124 * non-zero, then the calculated field will be at least 1. 15125 * 15126 * Must be after icode is set up - the cclock rate depends 15127 * on knowing the hardware being used. 15128 */ 15129 dd->rcv_intr_timeout_csr = ns_to_cclock(dd, rcv_intr_timeout) / 64; 15130 if (dd->rcv_intr_timeout_csr > 15131 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_MASK) 15132 dd->rcv_intr_timeout_csr = 15133 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_MASK; 15134 else if (dd->rcv_intr_timeout_csr == 0 && rcv_intr_timeout) 15135 dd->rcv_intr_timeout_csr = 1; 15136 15137 /* needs to be done before we look for the peer device */ 15138 read_guid(dd); 15139 15140 /* set up shared ASIC data with peer device */ 15141 ret = init_asic_data(dd); 15142 if (ret) 15143 goto bail_cleanup; 15144 15145 /* obtain chip sizes, reset chip CSRs */ 15146 ret = init_chip(dd); 15147 if (ret) 15148 goto bail_cleanup; 15149 15150 /* read in the PCIe link speed information */ 15151 ret = pcie_speeds(dd); 15152 if (ret) 15153 goto bail_cleanup; 15154 15155 /* call before get_platform_config(), after init_chip_resources() */ 15156 ret = eprom_init(dd); 15157 if (ret) 15158 goto bail_free_rcverr; 15159 15160 /* Needs to be called before hfi1_firmware_init */ 15161 get_platform_config(dd); 15162 15163 /* read in firmware */ 15164 ret = hfi1_firmware_init(dd); 15165 if (ret) 15166 goto bail_cleanup; 15167 15168 /* 15169 * In general, the PCIe Gen3 transition must occur after the 15170 * chip has been idled (so it won't initiate any PCIe transactions 15171 * e.g. an interrupt) and before the driver changes any registers 15172 * (the transition will reset the registers). 15173 * 15174 * In particular, place this call after: 15175 * - init_chip() - the chip will not initiate any PCIe transactions 15176 * - pcie_speeds() - reads the current link speed 15177 * - hfi1_firmware_init() - the needed firmware is ready to be 15178 * downloaded 15179 */ 15180 ret = do_pcie_gen3_transition(dd); 15181 if (ret) 15182 goto bail_cleanup; 15183 15184 /* 15185 * This should probably occur in hfi1_pcie_init(), but historically 15186 * occurs after the do_pcie_gen3_transition() code. 15187 */ 15188 tune_pcie_caps(dd); 15189 15190 /* start setting dd values and adjusting CSRs */ 15191 init_early_variables(dd); 15192 15193 parse_platform_config(dd); 15194 15195 ret = obtain_boardname(dd); 15196 if (ret) 15197 goto bail_cleanup; 15198 15199 snprintf(dd->boardversion, BOARD_VERS_MAX, 15200 "ChipABI %u.%u, ChipRev %u.%u, SW Compat %llu\n", 15201 HFI1_CHIP_VERS_MAJ, HFI1_CHIP_VERS_MIN, 15202 (u32)dd->majrev, 15203 (u32)dd->minrev, 15204 (dd->revision >> CCE_REVISION_SW_SHIFT) 15205 & CCE_REVISION_SW_MASK); 15206 15207 /* alloc VNIC/AIP rx data */ 15208 ret = hfi1_alloc_rx(dd); 15209 if (ret) 15210 goto bail_cleanup; 15211 15212 ret = set_up_context_variables(dd); 15213 if (ret) 15214 goto bail_cleanup; 15215 15216 /* set initial RXE CSRs */ 15217 ret = init_rxe(dd); 15218 if (ret) 15219 goto bail_cleanup; 15220 15221 /* set initial TXE CSRs */ 15222 init_txe(dd); 15223 /* set initial non-RXE, non-TXE CSRs */ 15224 init_other(dd); 15225 /* set up KDETH QP prefix in both RX and TX CSRs */ 15226 init_kdeth_qp(dd); 15227 15228 ret = hfi1_dev_affinity_init(dd); 15229 if (ret) 15230 goto bail_cleanup; 15231 15232 /* send contexts must be set up before receive contexts */ 15233 ret = init_send_contexts(dd); 15234 if (ret) 15235 goto bail_cleanup; 15236 15237 ret = hfi1_create_kctxts(dd); 15238 if (ret) 15239 goto bail_cleanup; 15240 15241 /* 15242 * Initialize aspm, to be done after gen3 transition and setting up 15243 * contexts and before enabling interrupts 15244 */ 15245 aspm_init(dd); 15246 15247 ret = init_pervl_scs(dd); 15248 if (ret) 15249 goto bail_cleanup; 15250 15251 /* sdma init */ 15252 for (i = 0; i < dd->num_pports; ++i) { 15253 ret = sdma_init(dd, i); 15254 if (ret) 15255 goto bail_cleanup; 15256 } 15257 15258 /* use contexts created by hfi1_create_kctxts */ 15259 ret = set_up_interrupts(dd); 15260 if (ret) 15261 goto bail_cleanup; 15262 15263 ret = hfi1_comp_vectors_set_up(dd); 15264 if (ret) 15265 goto bail_clear_intr; 15266 15267 /* set up LCB access - must be after set_up_interrupts() */ 15268 init_lcb_access(dd); 15269 15270 /* 15271 * Serial number is created from the base guid: 15272 * [27:24] = base guid [38:35] 15273 * [23: 0] = base guid [23: 0] 15274 */ 15275 snprintf(dd->serial, SERIAL_MAX, "0x%08llx\n", 15276 (dd->base_guid & 0xFFFFFF) | 15277 ((dd->base_guid >> 11) & 0xF000000)); 15278 15279 dd->oui1 = dd->base_guid >> 56 & 0xFF; 15280 dd->oui2 = dd->base_guid >> 48 & 0xFF; 15281 dd->oui3 = dd->base_guid >> 40 & 0xFF; 15282 15283 ret = load_firmware(dd); /* asymmetric with dispose_firmware() */ 15284 if (ret) 15285 goto bail_clear_intr; 15286 15287 thermal_init(dd); 15288 15289 ret = init_cntrs(dd); 15290 if (ret) 15291 goto bail_clear_intr; 15292 15293 ret = init_rcverr(dd); 15294 if (ret) 15295 goto bail_free_cntrs; 15296 15297 init_completion(&dd->user_comp); 15298 15299 /* The user refcount starts with one to inidicate an active device */ 15300 refcount_set(&dd->user_refcount, 1); 15301 15302 goto bail; 15303 15304 bail_free_rcverr: 15305 free_rcverr(dd); 15306 bail_free_cntrs: 15307 free_cntrs(dd); 15308 bail_clear_intr: 15309 hfi1_comp_vectors_clean_up(dd); 15310 msix_clean_up_interrupts(dd); 15311 bail_cleanup: 15312 hfi1_free_rx(dd); 15313 hfi1_pcie_ddcleanup(dd); 15314 bail_free: 15315 hfi1_free_devdata(dd); 15316 bail: 15317 return ret; 15318 } 15319 15320 static u16 delay_cycles(struct hfi1_pportdata *ppd, u32 desired_egress_rate, 15321 u32 dw_len) 15322 { 15323 u32 delta_cycles; 15324 u32 current_egress_rate = ppd->current_egress_rate; 15325 /* rates here are in units of 10^6 bits/sec */ 15326 15327 if (desired_egress_rate == -1) 15328 return 0; /* shouldn't happen */ 15329 15330 if (desired_egress_rate >= current_egress_rate) 15331 return 0; /* we can't help go faster, only slower */ 15332 15333 delta_cycles = egress_cycles(dw_len * 4, desired_egress_rate) - 15334 egress_cycles(dw_len * 4, current_egress_rate); 15335 15336 return (u16)delta_cycles; 15337 } 15338 15339 /** 15340 * create_pbc - build a pbc for transmission 15341 * @ppd: info of physical Hfi port 15342 * @flags: special case flags or-ed in built pbc 15343 * @srate_mbs: static rate 15344 * @vl: vl 15345 * @dw_len: dword length (header words + data words + pbc words) 15346 * 15347 * Create a PBC with the given flags, rate, VL, and length. 15348 * 15349 * NOTE: The PBC created will not insert any HCRC - all callers but one are 15350 * for verbs, which does not use this PSM feature. The lone other caller 15351 * is for the diagnostic interface which calls this if the user does not 15352 * supply their own PBC. 15353 */ 15354 u64 create_pbc(struct hfi1_pportdata *ppd, u64 flags, int srate_mbs, u32 vl, 15355 u32 dw_len) 15356 { 15357 u64 pbc, delay = 0; 15358 15359 if (unlikely(srate_mbs)) 15360 delay = delay_cycles(ppd, srate_mbs, dw_len); 15361 15362 pbc = flags 15363 | (delay << PBC_STATIC_RATE_CONTROL_COUNT_SHIFT) 15364 | ((u64)PBC_IHCRC_NONE << PBC_INSERT_HCRC_SHIFT) 15365 | (vl & PBC_VL_MASK) << PBC_VL_SHIFT 15366 | (dw_len & PBC_LENGTH_DWS_MASK) 15367 << PBC_LENGTH_DWS_SHIFT; 15368 15369 return pbc; 15370 } 15371 15372 #define SBUS_THERMAL 0x4f 15373 #define SBUS_THERM_MONITOR_MODE 0x1 15374 15375 #define THERM_FAILURE(dev, ret, reason) \ 15376 dd_dev_err((dd), \ 15377 "Thermal sensor initialization failed: %s (%d)\n", \ 15378 (reason), (ret)) 15379 15380 /* 15381 * Initialize the thermal sensor. 15382 * 15383 * After initialization, enable polling of thermal sensor through 15384 * SBus interface. In order for this to work, the SBus Master 15385 * firmware has to be loaded due to the fact that the HW polling 15386 * logic uses SBus interrupts, which are not supported with 15387 * default firmware. Otherwise, no data will be returned through 15388 * the ASIC_STS_THERM CSR. 15389 */ 15390 static int thermal_init(struct hfi1_devdata *dd) 15391 { 15392 int ret = 0; 15393 15394 if (dd->icode != ICODE_RTL_SILICON || 15395 check_chip_resource(dd, CR_THERM_INIT, NULL)) 15396 return ret; 15397 15398 ret = acquire_chip_resource(dd, CR_SBUS, SBUS_TIMEOUT); 15399 if (ret) { 15400 THERM_FAILURE(dd, ret, "Acquire SBus"); 15401 return ret; 15402 } 15403 15404 dd_dev_info(dd, "Initializing thermal sensor\n"); 15405 /* Disable polling of thermal readings */ 15406 write_csr(dd, ASIC_CFG_THERM_POLL_EN, 0x0); 15407 msleep(100); 15408 /* Thermal Sensor Initialization */ 15409 /* Step 1: Reset the Thermal SBus Receiver */ 15410 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0, 15411 RESET_SBUS_RECEIVER, 0); 15412 if (ret) { 15413 THERM_FAILURE(dd, ret, "Bus Reset"); 15414 goto done; 15415 } 15416 /* Step 2: Set Reset bit in Thermal block */ 15417 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0, 15418 WRITE_SBUS_RECEIVER, 0x1); 15419 if (ret) { 15420 THERM_FAILURE(dd, ret, "Therm Block Reset"); 15421 goto done; 15422 } 15423 /* Step 3: Write clock divider value (100MHz -> 2MHz) */ 15424 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x1, 15425 WRITE_SBUS_RECEIVER, 0x32); 15426 if (ret) { 15427 THERM_FAILURE(dd, ret, "Write Clock Div"); 15428 goto done; 15429 } 15430 /* Step 4: Select temperature mode */ 15431 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x3, 15432 WRITE_SBUS_RECEIVER, 15433 SBUS_THERM_MONITOR_MODE); 15434 if (ret) { 15435 THERM_FAILURE(dd, ret, "Write Mode Sel"); 15436 goto done; 15437 } 15438 /* Step 5: De-assert block reset and start conversion */ 15439 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0, 15440 WRITE_SBUS_RECEIVER, 0x2); 15441 if (ret) { 15442 THERM_FAILURE(dd, ret, "Write Reset Deassert"); 15443 goto done; 15444 } 15445 /* Step 5.1: Wait for first conversion (21.5ms per spec) */ 15446 msleep(22); 15447 15448 /* Enable polling of thermal readings */ 15449 write_csr(dd, ASIC_CFG_THERM_POLL_EN, 0x1); 15450 15451 /* Set initialized flag */ 15452 ret = acquire_chip_resource(dd, CR_THERM_INIT, 0); 15453 if (ret) 15454 THERM_FAILURE(dd, ret, "Unable to set thermal init flag"); 15455 15456 done: 15457 release_chip_resource(dd, CR_SBUS); 15458 return ret; 15459 } 15460 15461 static void handle_temp_err(struct hfi1_devdata *dd) 15462 { 15463 struct hfi1_pportdata *ppd = &dd->pport[0]; 15464 /* 15465 * Thermal Critical Interrupt 15466 * Put the device into forced freeze mode, take link down to 15467 * offline, and put DC into reset. 15468 */ 15469 dd_dev_emerg(dd, 15470 "Critical temperature reached! Forcing device into freeze mode!\n"); 15471 dd->flags |= HFI1_FORCED_FREEZE; 15472 start_freeze_handling(ppd, FREEZE_SELF | FREEZE_ABORT); 15473 /* 15474 * Shut DC down as much and as quickly as possible. 15475 * 15476 * Step 1: Take the link down to OFFLINE. This will cause the 15477 * 8051 to put the Serdes in reset. However, we don't want to 15478 * go through the entire link state machine since we want to 15479 * shutdown ASAP. Furthermore, this is not a graceful shutdown 15480 * but rather an attempt to save the chip. 15481 * Code below is almost the same as quiet_serdes() but avoids 15482 * all the extra work and the sleeps. 15483 */ 15484 ppd->driver_link_ready = 0; 15485 ppd->link_enabled = 0; 15486 set_physical_link_state(dd, (OPA_LINKDOWN_REASON_SMA_DISABLED << 8) | 15487 PLS_OFFLINE); 15488 /* 15489 * Step 2: Shutdown LCB and 8051 15490 * After shutdown, do not restore DC_CFG_RESET value. 15491 */ 15492 dc_shutdown(dd); 15493 } 15494