1 /* 2 * Copyright(c) 2015 - 2018 Intel Corporation. 3 * 4 * This file is provided under a dual BSD/GPLv2 license. When using or 5 * redistributing this file, you may do so under either license. 6 * 7 * GPL LICENSE SUMMARY 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of version 2 of the GNU General Public License as 11 * published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * BSD LICENSE 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 24 * - Redistributions of source code must retain the above copyright 25 * notice, this list of conditions and the following disclaimer. 26 * - Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in 28 * the documentation and/or other materials provided with the 29 * distribution. 30 * - Neither the name of Intel Corporation nor the names of its 31 * contributors may be used to endorse or promote products derived 32 * from this software without specific prior written permission. 33 * 34 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 37 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 38 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 39 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 40 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 41 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 42 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 43 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 45 * 46 */ 47 48 /* 49 * This file contains all of the code that is specific to the HFI chip 50 */ 51 52 #include <linux/pci.h> 53 #include <linux/delay.h> 54 #include <linux/interrupt.h> 55 #include <linux/module.h> 56 57 #include "hfi.h" 58 #include "trace.h" 59 #include "mad.h" 60 #include "pio.h" 61 #include "sdma.h" 62 #include "eprom.h" 63 #include "efivar.h" 64 #include "platform.h" 65 #include "aspm.h" 66 #include "affinity.h" 67 #include "debugfs.h" 68 #include "fault.h" 69 70 uint kdeth_qp; 71 module_param_named(kdeth_qp, kdeth_qp, uint, S_IRUGO); 72 MODULE_PARM_DESC(kdeth_qp, "Set the KDETH queue pair prefix"); 73 74 uint num_vls = HFI1_MAX_VLS_SUPPORTED; 75 module_param(num_vls, uint, S_IRUGO); 76 MODULE_PARM_DESC(num_vls, "Set number of Virtual Lanes to use (1-8)"); 77 78 /* 79 * Default time to aggregate two 10K packets from the idle state 80 * (timer not running). The timer starts at the end of the first packet, 81 * so only the time for one 10K packet and header plus a bit extra is needed. 82 * 10 * 1024 + 64 header byte = 10304 byte 83 * 10304 byte / 12.5 GB/s = 824.32ns 84 */ 85 uint rcv_intr_timeout = (824 + 16); /* 16 is for coalescing interrupt */ 86 module_param(rcv_intr_timeout, uint, S_IRUGO); 87 MODULE_PARM_DESC(rcv_intr_timeout, "Receive interrupt mitigation timeout in ns"); 88 89 uint rcv_intr_count = 16; /* same as qib */ 90 module_param(rcv_intr_count, uint, S_IRUGO); 91 MODULE_PARM_DESC(rcv_intr_count, "Receive interrupt mitigation count"); 92 93 ushort link_crc_mask = SUPPORTED_CRCS; 94 module_param(link_crc_mask, ushort, S_IRUGO); 95 MODULE_PARM_DESC(link_crc_mask, "CRCs to use on the link"); 96 97 uint loopback; 98 module_param_named(loopback, loopback, uint, S_IRUGO); 99 MODULE_PARM_DESC(loopback, "Put into loopback mode (1 = serdes, 3 = external cable"); 100 101 /* Other driver tunables */ 102 uint rcv_intr_dynamic = 1; /* enable dynamic mode for rcv int mitigation*/ 103 static ushort crc_14b_sideband = 1; 104 static uint use_flr = 1; 105 uint quick_linkup; /* skip LNI */ 106 107 struct flag_table { 108 u64 flag; /* the flag */ 109 char *str; /* description string */ 110 u16 extra; /* extra information */ 111 u16 unused0; 112 u32 unused1; 113 }; 114 115 /* str must be a string constant */ 116 #define FLAG_ENTRY(str, extra, flag) {flag, str, extra} 117 #define FLAG_ENTRY0(str, flag) {flag, str, 0} 118 119 /* Send Error Consequences */ 120 #define SEC_WRITE_DROPPED 0x1 121 #define SEC_PACKET_DROPPED 0x2 122 #define SEC_SC_HALTED 0x4 /* per-context only */ 123 #define SEC_SPC_FREEZE 0x8 /* per-HFI only */ 124 125 #define DEFAULT_KRCVQS 2 126 #define MIN_KERNEL_KCTXTS 2 127 #define FIRST_KERNEL_KCTXT 1 128 129 /* 130 * RSM instance allocation 131 * 0 - Verbs 132 * 1 - User Fecn Handling 133 * 2 - Vnic 134 */ 135 #define RSM_INS_VERBS 0 136 #define RSM_INS_FECN 1 137 #define RSM_INS_VNIC 2 138 139 /* Bit offset into the GUID which carries HFI id information */ 140 #define GUID_HFI_INDEX_SHIFT 39 141 142 /* extract the emulation revision */ 143 #define emulator_rev(dd) ((dd)->irev >> 8) 144 /* parallel and serial emulation versions are 3 and 4 respectively */ 145 #define is_emulator_p(dd) ((((dd)->irev) & 0xf) == 3) 146 #define is_emulator_s(dd) ((((dd)->irev) & 0xf) == 4) 147 148 /* RSM fields for Verbs */ 149 /* packet type */ 150 #define IB_PACKET_TYPE 2ull 151 #define QW_SHIFT 6ull 152 /* QPN[7..1] */ 153 #define QPN_WIDTH 7ull 154 155 /* LRH.BTH: QW 0, OFFSET 48 - for match */ 156 #define LRH_BTH_QW 0ull 157 #define LRH_BTH_BIT_OFFSET 48ull 158 #define LRH_BTH_OFFSET(off) ((LRH_BTH_QW << QW_SHIFT) | (off)) 159 #define LRH_BTH_MATCH_OFFSET LRH_BTH_OFFSET(LRH_BTH_BIT_OFFSET) 160 #define LRH_BTH_SELECT 161 #define LRH_BTH_MASK 3ull 162 #define LRH_BTH_VALUE 2ull 163 164 /* LRH.SC[3..0] QW 0, OFFSET 56 - for match */ 165 #define LRH_SC_QW 0ull 166 #define LRH_SC_BIT_OFFSET 56ull 167 #define LRH_SC_OFFSET(off) ((LRH_SC_QW << QW_SHIFT) | (off)) 168 #define LRH_SC_MATCH_OFFSET LRH_SC_OFFSET(LRH_SC_BIT_OFFSET) 169 #define LRH_SC_MASK 128ull 170 #define LRH_SC_VALUE 0ull 171 172 /* SC[n..0] QW 0, OFFSET 60 - for select */ 173 #define LRH_SC_SELECT_OFFSET ((LRH_SC_QW << QW_SHIFT) | (60ull)) 174 175 /* QPN[m+n:1] QW 1, OFFSET 1 */ 176 #define QPN_SELECT_OFFSET ((1ull << QW_SHIFT) | (1ull)) 177 178 /* RSM fields for Vnic */ 179 /* L2_TYPE: QW 0, OFFSET 61 - for match */ 180 #define L2_TYPE_QW 0ull 181 #define L2_TYPE_BIT_OFFSET 61ull 182 #define L2_TYPE_OFFSET(off) ((L2_TYPE_QW << QW_SHIFT) | (off)) 183 #define L2_TYPE_MATCH_OFFSET L2_TYPE_OFFSET(L2_TYPE_BIT_OFFSET) 184 #define L2_TYPE_MASK 3ull 185 #define L2_16B_VALUE 2ull 186 187 /* L4_TYPE QW 1, OFFSET 0 - for match */ 188 #define L4_TYPE_QW 1ull 189 #define L4_TYPE_BIT_OFFSET 0ull 190 #define L4_TYPE_OFFSET(off) ((L4_TYPE_QW << QW_SHIFT) | (off)) 191 #define L4_TYPE_MATCH_OFFSET L4_TYPE_OFFSET(L4_TYPE_BIT_OFFSET) 192 #define L4_16B_TYPE_MASK 0xFFull 193 #define L4_16B_ETH_VALUE 0x78ull 194 195 /* 16B VESWID - for select */ 196 #define L4_16B_HDR_VESWID_OFFSET ((2 << QW_SHIFT) | (16ull)) 197 /* 16B ENTROPY - for select */ 198 #define L2_16B_ENTROPY_OFFSET ((1 << QW_SHIFT) | (32ull)) 199 200 /* defines to build power on SC2VL table */ 201 #define SC2VL_VAL( \ 202 num, \ 203 sc0, sc0val, \ 204 sc1, sc1val, \ 205 sc2, sc2val, \ 206 sc3, sc3val, \ 207 sc4, sc4val, \ 208 sc5, sc5val, \ 209 sc6, sc6val, \ 210 sc7, sc7val) \ 211 ( \ 212 ((u64)(sc0val) << SEND_SC2VLT##num##_SC##sc0##_SHIFT) | \ 213 ((u64)(sc1val) << SEND_SC2VLT##num##_SC##sc1##_SHIFT) | \ 214 ((u64)(sc2val) << SEND_SC2VLT##num##_SC##sc2##_SHIFT) | \ 215 ((u64)(sc3val) << SEND_SC2VLT##num##_SC##sc3##_SHIFT) | \ 216 ((u64)(sc4val) << SEND_SC2VLT##num##_SC##sc4##_SHIFT) | \ 217 ((u64)(sc5val) << SEND_SC2VLT##num##_SC##sc5##_SHIFT) | \ 218 ((u64)(sc6val) << SEND_SC2VLT##num##_SC##sc6##_SHIFT) | \ 219 ((u64)(sc7val) << SEND_SC2VLT##num##_SC##sc7##_SHIFT) \ 220 ) 221 222 #define DC_SC_VL_VAL( \ 223 range, \ 224 e0, e0val, \ 225 e1, e1val, \ 226 e2, e2val, \ 227 e3, e3val, \ 228 e4, e4val, \ 229 e5, e5val, \ 230 e6, e6val, \ 231 e7, e7val, \ 232 e8, e8val, \ 233 e9, e9val, \ 234 e10, e10val, \ 235 e11, e11val, \ 236 e12, e12val, \ 237 e13, e13val, \ 238 e14, e14val, \ 239 e15, e15val) \ 240 ( \ 241 ((u64)(e0val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e0##_SHIFT) | \ 242 ((u64)(e1val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e1##_SHIFT) | \ 243 ((u64)(e2val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e2##_SHIFT) | \ 244 ((u64)(e3val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e3##_SHIFT) | \ 245 ((u64)(e4val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e4##_SHIFT) | \ 246 ((u64)(e5val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e5##_SHIFT) | \ 247 ((u64)(e6val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e6##_SHIFT) | \ 248 ((u64)(e7val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e7##_SHIFT) | \ 249 ((u64)(e8val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e8##_SHIFT) | \ 250 ((u64)(e9val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e9##_SHIFT) | \ 251 ((u64)(e10val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e10##_SHIFT) | \ 252 ((u64)(e11val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e11##_SHIFT) | \ 253 ((u64)(e12val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e12##_SHIFT) | \ 254 ((u64)(e13val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e13##_SHIFT) | \ 255 ((u64)(e14val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e14##_SHIFT) | \ 256 ((u64)(e15val) << DCC_CFG_SC_VL_TABLE_##range##_ENTRY##e15##_SHIFT) \ 257 ) 258 259 /* all CceStatus sub-block freeze bits */ 260 #define ALL_FROZE (CCE_STATUS_SDMA_FROZE_SMASK \ 261 | CCE_STATUS_RXE_FROZE_SMASK \ 262 | CCE_STATUS_TXE_FROZE_SMASK \ 263 | CCE_STATUS_TXE_PIO_FROZE_SMASK) 264 /* all CceStatus sub-block TXE pause bits */ 265 #define ALL_TXE_PAUSE (CCE_STATUS_TXE_PIO_PAUSED_SMASK \ 266 | CCE_STATUS_TXE_PAUSED_SMASK \ 267 | CCE_STATUS_SDMA_PAUSED_SMASK) 268 /* all CceStatus sub-block RXE pause bits */ 269 #define ALL_RXE_PAUSE CCE_STATUS_RXE_PAUSED_SMASK 270 271 #define CNTR_MAX 0xFFFFFFFFFFFFFFFFULL 272 #define CNTR_32BIT_MAX 0x00000000FFFFFFFF 273 274 /* 275 * CCE Error flags. 276 */ 277 static struct flag_table cce_err_status_flags[] = { 278 /* 0*/ FLAG_ENTRY0("CceCsrParityErr", 279 CCE_ERR_STATUS_CCE_CSR_PARITY_ERR_SMASK), 280 /* 1*/ FLAG_ENTRY0("CceCsrReadBadAddrErr", 281 CCE_ERR_STATUS_CCE_CSR_READ_BAD_ADDR_ERR_SMASK), 282 /* 2*/ FLAG_ENTRY0("CceCsrWriteBadAddrErr", 283 CCE_ERR_STATUS_CCE_CSR_WRITE_BAD_ADDR_ERR_SMASK), 284 /* 3*/ FLAG_ENTRY0("CceTrgtAsyncFifoParityErr", 285 CCE_ERR_STATUS_CCE_TRGT_ASYNC_FIFO_PARITY_ERR_SMASK), 286 /* 4*/ FLAG_ENTRY0("CceTrgtAccessErr", 287 CCE_ERR_STATUS_CCE_TRGT_ACCESS_ERR_SMASK), 288 /* 5*/ FLAG_ENTRY0("CceRspdDataParityErr", 289 CCE_ERR_STATUS_CCE_RSPD_DATA_PARITY_ERR_SMASK), 290 /* 6*/ FLAG_ENTRY0("CceCli0AsyncFifoParityErr", 291 CCE_ERR_STATUS_CCE_CLI0_ASYNC_FIFO_PARITY_ERR_SMASK), 292 /* 7*/ FLAG_ENTRY0("CceCsrCfgBusParityErr", 293 CCE_ERR_STATUS_CCE_CSR_CFG_BUS_PARITY_ERR_SMASK), 294 /* 8*/ FLAG_ENTRY0("CceCli2AsyncFifoParityErr", 295 CCE_ERR_STATUS_CCE_CLI2_ASYNC_FIFO_PARITY_ERR_SMASK), 296 /* 9*/ FLAG_ENTRY0("CceCli1AsyncFifoPioCrdtParityErr", 297 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_PIO_CRDT_PARITY_ERR_SMASK), 298 /*10*/ FLAG_ENTRY0("CceCli1AsyncFifoPioCrdtParityErr", 299 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_SDMA_HD_PARITY_ERR_SMASK), 300 /*11*/ FLAG_ENTRY0("CceCli1AsyncFifoRxdmaParityError", 301 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_RXDMA_PARITY_ERROR_SMASK), 302 /*12*/ FLAG_ENTRY0("CceCli1AsyncFifoDbgParityError", 303 CCE_ERR_STATUS_CCE_CLI1_ASYNC_FIFO_DBG_PARITY_ERROR_SMASK), 304 /*13*/ FLAG_ENTRY0("PcicRetryMemCorErr", 305 CCE_ERR_STATUS_PCIC_RETRY_MEM_COR_ERR_SMASK), 306 /*14*/ FLAG_ENTRY0("PcicRetryMemCorErr", 307 CCE_ERR_STATUS_PCIC_RETRY_SOT_MEM_COR_ERR_SMASK), 308 /*15*/ FLAG_ENTRY0("PcicPostHdQCorErr", 309 CCE_ERR_STATUS_PCIC_POST_HD_QCOR_ERR_SMASK), 310 /*16*/ FLAG_ENTRY0("PcicPostHdQCorErr", 311 CCE_ERR_STATUS_PCIC_POST_DAT_QCOR_ERR_SMASK), 312 /*17*/ FLAG_ENTRY0("PcicPostHdQCorErr", 313 CCE_ERR_STATUS_PCIC_CPL_HD_QCOR_ERR_SMASK), 314 /*18*/ FLAG_ENTRY0("PcicCplDatQCorErr", 315 CCE_ERR_STATUS_PCIC_CPL_DAT_QCOR_ERR_SMASK), 316 /*19*/ FLAG_ENTRY0("PcicNPostHQParityErr", 317 CCE_ERR_STATUS_PCIC_NPOST_HQ_PARITY_ERR_SMASK), 318 /*20*/ FLAG_ENTRY0("PcicNPostDatQParityErr", 319 CCE_ERR_STATUS_PCIC_NPOST_DAT_QPARITY_ERR_SMASK), 320 /*21*/ FLAG_ENTRY0("PcicRetryMemUncErr", 321 CCE_ERR_STATUS_PCIC_RETRY_MEM_UNC_ERR_SMASK), 322 /*22*/ FLAG_ENTRY0("PcicRetrySotMemUncErr", 323 CCE_ERR_STATUS_PCIC_RETRY_SOT_MEM_UNC_ERR_SMASK), 324 /*23*/ FLAG_ENTRY0("PcicPostHdQUncErr", 325 CCE_ERR_STATUS_PCIC_POST_HD_QUNC_ERR_SMASK), 326 /*24*/ FLAG_ENTRY0("PcicPostDatQUncErr", 327 CCE_ERR_STATUS_PCIC_POST_DAT_QUNC_ERR_SMASK), 328 /*25*/ FLAG_ENTRY0("PcicCplHdQUncErr", 329 CCE_ERR_STATUS_PCIC_CPL_HD_QUNC_ERR_SMASK), 330 /*26*/ FLAG_ENTRY0("PcicCplDatQUncErr", 331 CCE_ERR_STATUS_PCIC_CPL_DAT_QUNC_ERR_SMASK), 332 /*27*/ FLAG_ENTRY0("PcicTransmitFrontParityErr", 333 CCE_ERR_STATUS_PCIC_TRANSMIT_FRONT_PARITY_ERR_SMASK), 334 /*28*/ FLAG_ENTRY0("PcicTransmitBackParityErr", 335 CCE_ERR_STATUS_PCIC_TRANSMIT_BACK_PARITY_ERR_SMASK), 336 /*29*/ FLAG_ENTRY0("PcicReceiveParityErr", 337 CCE_ERR_STATUS_PCIC_RECEIVE_PARITY_ERR_SMASK), 338 /*30*/ FLAG_ENTRY0("CceTrgtCplTimeoutErr", 339 CCE_ERR_STATUS_CCE_TRGT_CPL_TIMEOUT_ERR_SMASK), 340 /*31*/ FLAG_ENTRY0("LATriggered", 341 CCE_ERR_STATUS_LA_TRIGGERED_SMASK), 342 /*32*/ FLAG_ENTRY0("CceSegReadBadAddrErr", 343 CCE_ERR_STATUS_CCE_SEG_READ_BAD_ADDR_ERR_SMASK), 344 /*33*/ FLAG_ENTRY0("CceSegWriteBadAddrErr", 345 CCE_ERR_STATUS_CCE_SEG_WRITE_BAD_ADDR_ERR_SMASK), 346 /*34*/ FLAG_ENTRY0("CceRcplAsyncFifoParityErr", 347 CCE_ERR_STATUS_CCE_RCPL_ASYNC_FIFO_PARITY_ERR_SMASK), 348 /*35*/ FLAG_ENTRY0("CceRxdmaConvFifoParityErr", 349 CCE_ERR_STATUS_CCE_RXDMA_CONV_FIFO_PARITY_ERR_SMASK), 350 /*36*/ FLAG_ENTRY0("CceMsixTableCorErr", 351 CCE_ERR_STATUS_CCE_MSIX_TABLE_COR_ERR_SMASK), 352 /*37*/ FLAG_ENTRY0("CceMsixTableUncErr", 353 CCE_ERR_STATUS_CCE_MSIX_TABLE_UNC_ERR_SMASK), 354 /*38*/ FLAG_ENTRY0("CceIntMapCorErr", 355 CCE_ERR_STATUS_CCE_INT_MAP_COR_ERR_SMASK), 356 /*39*/ FLAG_ENTRY0("CceIntMapUncErr", 357 CCE_ERR_STATUS_CCE_INT_MAP_UNC_ERR_SMASK), 358 /*40*/ FLAG_ENTRY0("CceMsixCsrParityErr", 359 CCE_ERR_STATUS_CCE_MSIX_CSR_PARITY_ERR_SMASK), 360 /*41-63 reserved*/ 361 }; 362 363 /* 364 * Misc Error flags 365 */ 366 #define MES(text) MISC_ERR_STATUS_MISC_##text##_ERR_SMASK 367 static struct flag_table misc_err_status_flags[] = { 368 /* 0*/ FLAG_ENTRY0("CSR_PARITY", MES(CSR_PARITY)), 369 /* 1*/ FLAG_ENTRY0("CSR_READ_BAD_ADDR", MES(CSR_READ_BAD_ADDR)), 370 /* 2*/ FLAG_ENTRY0("CSR_WRITE_BAD_ADDR", MES(CSR_WRITE_BAD_ADDR)), 371 /* 3*/ FLAG_ENTRY0("SBUS_WRITE_FAILED", MES(SBUS_WRITE_FAILED)), 372 /* 4*/ FLAG_ENTRY0("KEY_MISMATCH", MES(KEY_MISMATCH)), 373 /* 5*/ FLAG_ENTRY0("FW_AUTH_FAILED", MES(FW_AUTH_FAILED)), 374 /* 6*/ FLAG_ENTRY0("EFUSE_CSR_PARITY", MES(EFUSE_CSR_PARITY)), 375 /* 7*/ FLAG_ENTRY0("EFUSE_READ_BAD_ADDR", MES(EFUSE_READ_BAD_ADDR)), 376 /* 8*/ FLAG_ENTRY0("EFUSE_WRITE", MES(EFUSE_WRITE)), 377 /* 9*/ FLAG_ENTRY0("EFUSE_DONE_PARITY", MES(EFUSE_DONE_PARITY)), 378 /*10*/ FLAG_ENTRY0("INVALID_EEP_CMD", MES(INVALID_EEP_CMD)), 379 /*11*/ FLAG_ENTRY0("MBIST_FAIL", MES(MBIST_FAIL)), 380 /*12*/ FLAG_ENTRY0("PLL_LOCK_FAIL", MES(PLL_LOCK_FAIL)) 381 }; 382 383 /* 384 * TXE PIO Error flags and consequences 385 */ 386 static struct flag_table pio_err_status_flags[] = { 387 /* 0*/ FLAG_ENTRY("PioWriteBadCtxt", 388 SEC_WRITE_DROPPED, 389 SEND_PIO_ERR_STATUS_PIO_WRITE_BAD_CTXT_ERR_SMASK), 390 /* 1*/ FLAG_ENTRY("PioWriteAddrParity", 391 SEC_SPC_FREEZE, 392 SEND_PIO_ERR_STATUS_PIO_WRITE_ADDR_PARITY_ERR_SMASK), 393 /* 2*/ FLAG_ENTRY("PioCsrParity", 394 SEC_SPC_FREEZE, 395 SEND_PIO_ERR_STATUS_PIO_CSR_PARITY_ERR_SMASK), 396 /* 3*/ FLAG_ENTRY("PioSbMemFifo0", 397 SEC_SPC_FREEZE, 398 SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO0_ERR_SMASK), 399 /* 4*/ FLAG_ENTRY("PioSbMemFifo1", 400 SEC_SPC_FREEZE, 401 SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO1_ERR_SMASK), 402 /* 5*/ FLAG_ENTRY("PioPccFifoParity", 403 SEC_SPC_FREEZE, 404 SEND_PIO_ERR_STATUS_PIO_PCC_FIFO_PARITY_ERR_SMASK), 405 /* 6*/ FLAG_ENTRY("PioPecFifoParity", 406 SEC_SPC_FREEZE, 407 SEND_PIO_ERR_STATUS_PIO_PEC_FIFO_PARITY_ERR_SMASK), 408 /* 7*/ FLAG_ENTRY("PioSbrdctlCrrelParity", 409 SEC_SPC_FREEZE, 410 SEND_PIO_ERR_STATUS_PIO_SBRDCTL_CRREL_PARITY_ERR_SMASK), 411 /* 8*/ FLAG_ENTRY("PioSbrdctrlCrrelFifoParity", 412 SEC_SPC_FREEZE, 413 SEND_PIO_ERR_STATUS_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR_SMASK), 414 /* 9*/ FLAG_ENTRY("PioPktEvictFifoParityErr", 415 SEC_SPC_FREEZE, 416 SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_FIFO_PARITY_ERR_SMASK), 417 /*10*/ FLAG_ENTRY("PioSmPktResetParity", 418 SEC_SPC_FREEZE, 419 SEND_PIO_ERR_STATUS_PIO_SM_PKT_RESET_PARITY_ERR_SMASK), 420 /*11*/ FLAG_ENTRY("PioVlLenMemBank0Unc", 421 SEC_SPC_FREEZE, 422 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK0_UNC_ERR_SMASK), 423 /*12*/ FLAG_ENTRY("PioVlLenMemBank1Unc", 424 SEC_SPC_FREEZE, 425 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK1_UNC_ERR_SMASK), 426 /*13*/ FLAG_ENTRY("PioVlLenMemBank0Cor", 427 0, 428 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK0_COR_ERR_SMASK), 429 /*14*/ FLAG_ENTRY("PioVlLenMemBank1Cor", 430 0, 431 SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK1_COR_ERR_SMASK), 432 /*15*/ FLAG_ENTRY("PioCreditRetFifoParity", 433 SEC_SPC_FREEZE, 434 SEND_PIO_ERR_STATUS_PIO_CREDIT_RET_FIFO_PARITY_ERR_SMASK), 435 /*16*/ FLAG_ENTRY("PioPpmcPblFifo", 436 SEC_SPC_FREEZE, 437 SEND_PIO_ERR_STATUS_PIO_PPMC_PBL_FIFO_ERR_SMASK), 438 /*17*/ FLAG_ENTRY("PioInitSmIn", 439 0, 440 SEND_PIO_ERR_STATUS_PIO_INIT_SM_IN_ERR_SMASK), 441 /*18*/ FLAG_ENTRY("PioPktEvictSmOrArbSm", 442 SEC_SPC_FREEZE, 443 SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_SM_OR_ARB_SM_ERR_SMASK), 444 /*19*/ FLAG_ENTRY("PioHostAddrMemUnc", 445 SEC_SPC_FREEZE, 446 SEND_PIO_ERR_STATUS_PIO_HOST_ADDR_MEM_UNC_ERR_SMASK), 447 /*20*/ FLAG_ENTRY("PioHostAddrMemCor", 448 0, 449 SEND_PIO_ERR_STATUS_PIO_HOST_ADDR_MEM_COR_ERR_SMASK), 450 /*21*/ FLAG_ENTRY("PioWriteDataParity", 451 SEC_SPC_FREEZE, 452 SEND_PIO_ERR_STATUS_PIO_WRITE_DATA_PARITY_ERR_SMASK), 453 /*22*/ FLAG_ENTRY("PioStateMachine", 454 SEC_SPC_FREEZE, 455 SEND_PIO_ERR_STATUS_PIO_STATE_MACHINE_ERR_SMASK), 456 /*23*/ FLAG_ENTRY("PioWriteQwValidParity", 457 SEC_WRITE_DROPPED | SEC_SPC_FREEZE, 458 SEND_PIO_ERR_STATUS_PIO_WRITE_QW_VALID_PARITY_ERR_SMASK), 459 /*24*/ FLAG_ENTRY("PioBlockQwCountParity", 460 SEC_WRITE_DROPPED | SEC_SPC_FREEZE, 461 SEND_PIO_ERR_STATUS_PIO_BLOCK_QW_COUNT_PARITY_ERR_SMASK), 462 /*25*/ FLAG_ENTRY("PioVlfVlLenParity", 463 SEC_SPC_FREEZE, 464 SEND_PIO_ERR_STATUS_PIO_VLF_VL_LEN_PARITY_ERR_SMASK), 465 /*26*/ FLAG_ENTRY("PioVlfSopParity", 466 SEC_SPC_FREEZE, 467 SEND_PIO_ERR_STATUS_PIO_VLF_SOP_PARITY_ERR_SMASK), 468 /*27*/ FLAG_ENTRY("PioVlFifoParity", 469 SEC_SPC_FREEZE, 470 SEND_PIO_ERR_STATUS_PIO_VL_FIFO_PARITY_ERR_SMASK), 471 /*28*/ FLAG_ENTRY("PioPpmcBqcMemParity", 472 SEC_SPC_FREEZE, 473 SEND_PIO_ERR_STATUS_PIO_PPMC_BQC_MEM_PARITY_ERR_SMASK), 474 /*29*/ FLAG_ENTRY("PioPpmcSopLen", 475 SEC_SPC_FREEZE, 476 SEND_PIO_ERR_STATUS_PIO_PPMC_SOP_LEN_ERR_SMASK), 477 /*30-31 reserved*/ 478 /*32*/ FLAG_ENTRY("PioCurrentFreeCntParity", 479 SEC_SPC_FREEZE, 480 SEND_PIO_ERR_STATUS_PIO_CURRENT_FREE_CNT_PARITY_ERR_SMASK), 481 /*33*/ FLAG_ENTRY("PioLastReturnedCntParity", 482 SEC_SPC_FREEZE, 483 SEND_PIO_ERR_STATUS_PIO_LAST_RETURNED_CNT_PARITY_ERR_SMASK), 484 /*34*/ FLAG_ENTRY("PioPccSopHeadParity", 485 SEC_SPC_FREEZE, 486 SEND_PIO_ERR_STATUS_PIO_PCC_SOP_HEAD_PARITY_ERR_SMASK), 487 /*35*/ FLAG_ENTRY("PioPecSopHeadParityErr", 488 SEC_SPC_FREEZE, 489 SEND_PIO_ERR_STATUS_PIO_PEC_SOP_HEAD_PARITY_ERR_SMASK), 490 /*36-63 reserved*/ 491 }; 492 493 /* TXE PIO errors that cause an SPC freeze */ 494 #define ALL_PIO_FREEZE_ERR \ 495 (SEND_PIO_ERR_STATUS_PIO_WRITE_ADDR_PARITY_ERR_SMASK \ 496 | SEND_PIO_ERR_STATUS_PIO_CSR_PARITY_ERR_SMASK \ 497 | SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO0_ERR_SMASK \ 498 | SEND_PIO_ERR_STATUS_PIO_SB_MEM_FIFO1_ERR_SMASK \ 499 | SEND_PIO_ERR_STATUS_PIO_PCC_FIFO_PARITY_ERR_SMASK \ 500 | SEND_PIO_ERR_STATUS_PIO_PEC_FIFO_PARITY_ERR_SMASK \ 501 | SEND_PIO_ERR_STATUS_PIO_SBRDCTL_CRREL_PARITY_ERR_SMASK \ 502 | SEND_PIO_ERR_STATUS_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR_SMASK \ 503 | SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_FIFO_PARITY_ERR_SMASK \ 504 | SEND_PIO_ERR_STATUS_PIO_SM_PKT_RESET_PARITY_ERR_SMASK \ 505 | SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK0_UNC_ERR_SMASK \ 506 | SEND_PIO_ERR_STATUS_PIO_VL_LEN_MEM_BANK1_UNC_ERR_SMASK \ 507 | SEND_PIO_ERR_STATUS_PIO_CREDIT_RET_FIFO_PARITY_ERR_SMASK \ 508 | SEND_PIO_ERR_STATUS_PIO_PPMC_PBL_FIFO_ERR_SMASK \ 509 | SEND_PIO_ERR_STATUS_PIO_PKT_EVICT_SM_OR_ARB_SM_ERR_SMASK \ 510 | SEND_PIO_ERR_STATUS_PIO_HOST_ADDR_MEM_UNC_ERR_SMASK \ 511 | SEND_PIO_ERR_STATUS_PIO_WRITE_DATA_PARITY_ERR_SMASK \ 512 | SEND_PIO_ERR_STATUS_PIO_STATE_MACHINE_ERR_SMASK \ 513 | SEND_PIO_ERR_STATUS_PIO_WRITE_QW_VALID_PARITY_ERR_SMASK \ 514 | SEND_PIO_ERR_STATUS_PIO_BLOCK_QW_COUNT_PARITY_ERR_SMASK \ 515 | SEND_PIO_ERR_STATUS_PIO_VLF_VL_LEN_PARITY_ERR_SMASK \ 516 | SEND_PIO_ERR_STATUS_PIO_VLF_SOP_PARITY_ERR_SMASK \ 517 | SEND_PIO_ERR_STATUS_PIO_VL_FIFO_PARITY_ERR_SMASK \ 518 | SEND_PIO_ERR_STATUS_PIO_PPMC_BQC_MEM_PARITY_ERR_SMASK \ 519 | SEND_PIO_ERR_STATUS_PIO_PPMC_SOP_LEN_ERR_SMASK \ 520 | SEND_PIO_ERR_STATUS_PIO_CURRENT_FREE_CNT_PARITY_ERR_SMASK \ 521 | SEND_PIO_ERR_STATUS_PIO_LAST_RETURNED_CNT_PARITY_ERR_SMASK \ 522 | SEND_PIO_ERR_STATUS_PIO_PCC_SOP_HEAD_PARITY_ERR_SMASK \ 523 | SEND_PIO_ERR_STATUS_PIO_PEC_SOP_HEAD_PARITY_ERR_SMASK) 524 525 /* 526 * TXE SDMA Error flags 527 */ 528 static struct flag_table sdma_err_status_flags[] = { 529 /* 0*/ FLAG_ENTRY0("SDmaRpyTagErr", 530 SEND_DMA_ERR_STATUS_SDMA_RPY_TAG_ERR_SMASK), 531 /* 1*/ FLAG_ENTRY0("SDmaCsrParityErr", 532 SEND_DMA_ERR_STATUS_SDMA_CSR_PARITY_ERR_SMASK), 533 /* 2*/ FLAG_ENTRY0("SDmaPcieReqTrackingUncErr", 534 SEND_DMA_ERR_STATUS_SDMA_PCIE_REQ_TRACKING_UNC_ERR_SMASK), 535 /* 3*/ FLAG_ENTRY0("SDmaPcieReqTrackingCorErr", 536 SEND_DMA_ERR_STATUS_SDMA_PCIE_REQ_TRACKING_COR_ERR_SMASK), 537 /*04-63 reserved*/ 538 }; 539 540 /* TXE SDMA errors that cause an SPC freeze */ 541 #define ALL_SDMA_FREEZE_ERR \ 542 (SEND_DMA_ERR_STATUS_SDMA_RPY_TAG_ERR_SMASK \ 543 | SEND_DMA_ERR_STATUS_SDMA_CSR_PARITY_ERR_SMASK \ 544 | SEND_DMA_ERR_STATUS_SDMA_PCIE_REQ_TRACKING_UNC_ERR_SMASK) 545 546 /* SendEgressErrInfo bits that correspond to a PortXmitDiscard counter */ 547 #define PORT_DISCARD_EGRESS_ERRS \ 548 (SEND_EGRESS_ERR_INFO_TOO_LONG_IB_PACKET_ERR_SMASK \ 549 | SEND_EGRESS_ERR_INFO_VL_MAPPING_ERR_SMASK \ 550 | SEND_EGRESS_ERR_INFO_VL_ERR_SMASK) 551 552 /* 553 * TXE Egress Error flags 554 */ 555 #define SEES(text) SEND_EGRESS_ERR_STATUS_##text##_ERR_SMASK 556 static struct flag_table egress_err_status_flags[] = { 557 /* 0*/ FLAG_ENTRY0("TxPktIntegrityMemCorErr", SEES(TX_PKT_INTEGRITY_MEM_COR)), 558 /* 1*/ FLAG_ENTRY0("TxPktIntegrityMemUncErr", SEES(TX_PKT_INTEGRITY_MEM_UNC)), 559 /* 2 reserved */ 560 /* 3*/ FLAG_ENTRY0("TxEgressFifoUnderrunOrParityErr", 561 SEES(TX_EGRESS_FIFO_UNDERRUN_OR_PARITY)), 562 /* 4*/ FLAG_ENTRY0("TxLinkdownErr", SEES(TX_LINKDOWN)), 563 /* 5*/ FLAG_ENTRY0("TxIncorrectLinkStateErr", SEES(TX_INCORRECT_LINK_STATE)), 564 /* 6 reserved */ 565 /* 7*/ FLAG_ENTRY0("TxPioLaunchIntfParityErr", 566 SEES(TX_PIO_LAUNCH_INTF_PARITY)), 567 /* 8*/ FLAG_ENTRY0("TxSdmaLaunchIntfParityErr", 568 SEES(TX_SDMA_LAUNCH_INTF_PARITY)), 569 /* 9-10 reserved */ 570 /*11*/ FLAG_ENTRY0("TxSbrdCtlStateMachineParityErr", 571 SEES(TX_SBRD_CTL_STATE_MACHINE_PARITY)), 572 /*12*/ FLAG_ENTRY0("TxIllegalVLErr", SEES(TX_ILLEGAL_VL)), 573 /*13*/ FLAG_ENTRY0("TxLaunchCsrParityErr", SEES(TX_LAUNCH_CSR_PARITY)), 574 /*14*/ FLAG_ENTRY0("TxSbrdCtlCsrParityErr", SEES(TX_SBRD_CTL_CSR_PARITY)), 575 /*15*/ FLAG_ENTRY0("TxConfigParityErr", SEES(TX_CONFIG_PARITY)), 576 /*16*/ FLAG_ENTRY0("TxSdma0DisallowedPacketErr", 577 SEES(TX_SDMA0_DISALLOWED_PACKET)), 578 /*17*/ FLAG_ENTRY0("TxSdma1DisallowedPacketErr", 579 SEES(TX_SDMA1_DISALLOWED_PACKET)), 580 /*18*/ FLAG_ENTRY0("TxSdma2DisallowedPacketErr", 581 SEES(TX_SDMA2_DISALLOWED_PACKET)), 582 /*19*/ FLAG_ENTRY0("TxSdma3DisallowedPacketErr", 583 SEES(TX_SDMA3_DISALLOWED_PACKET)), 584 /*20*/ FLAG_ENTRY0("TxSdma4DisallowedPacketErr", 585 SEES(TX_SDMA4_DISALLOWED_PACKET)), 586 /*21*/ FLAG_ENTRY0("TxSdma5DisallowedPacketErr", 587 SEES(TX_SDMA5_DISALLOWED_PACKET)), 588 /*22*/ FLAG_ENTRY0("TxSdma6DisallowedPacketErr", 589 SEES(TX_SDMA6_DISALLOWED_PACKET)), 590 /*23*/ FLAG_ENTRY0("TxSdma7DisallowedPacketErr", 591 SEES(TX_SDMA7_DISALLOWED_PACKET)), 592 /*24*/ FLAG_ENTRY0("TxSdma8DisallowedPacketErr", 593 SEES(TX_SDMA8_DISALLOWED_PACKET)), 594 /*25*/ FLAG_ENTRY0("TxSdma9DisallowedPacketErr", 595 SEES(TX_SDMA9_DISALLOWED_PACKET)), 596 /*26*/ FLAG_ENTRY0("TxSdma10DisallowedPacketErr", 597 SEES(TX_SDMA10_DISALLOWED_PACKET)), 598 /*27*/ FLAG_ENTRY0("TxSdma11DisallowedPacketErr", 599 SEES(TX_SDMA11_DISALLOWED_PACKET)), 600 /*28*/ FLAG_ENTRY0("TxSdma12DisallowedPacketErr", 601 SEES(TX_SDMA12_DISALLOWED_PACKET)), 602 /*29*/ FLAG_ENTRY0("TxSdma13DisallowedPacketErr", 603 SEES(TX_SDMA13_DISALLOWED_PACKET)), 604 /*30*/ FLAG_ENTRY0("TxSdma14DisallowedPacketErr", 605 SEES(TX_SDMA14_DISALLOWED_PACKET)), 606 /*31*/ FLAG_ENTRY0("TxSdma15DisallowedPacketErr", 607 SEES(TX_SDMA15_DISALLOWED_PACKET)), 608 /*32*/ FLAG_ENTRY0("TxLaunchFifo0UncOrParityErr", 609 SEES(TX_LAUNCH_FIFO0_UNC_OR_PARITY)), 610 /*33*/ FLAG_ENTRY0("TxLaunchFifo1UncOrParityErr", 611 SEES(TX_LAUNCH_FIFO1_UNC_OR_PARITY)), 612 /*34*/ FLAG_ENTRY0("TxLaunchFifo2UncOrParityErr", 613 SEES(TX_LAUNCH_FIFO2_UNC_OR_PARITY)), 614 /*35*/ FLAG_ENTRY0("TxLaunchFifo3UncOrParityErr", 615 SEES(TX_LAUNCH_FIFO3_UNC_OR_PARITY)), 616 /*36*/ FLAG_ENTRY0("TxLaunchFifo4UncOrParityErr", 617 SEES(TX_LAUNCH_FIFO4_UNC_OR_PARITY)), 618 /*37*/ FLAG_ENTRY0("TxLaunchFifo5UncOrParityErr", 619 SEES(TX_LAUNCH_FIFO5_UNC_OR_PARITY)), 620 /*38*/ FLAG_ENTRY0("TxLaunchFifo6UncOrParityErr", 621 SEES(TX_LAUNCH_FIFO6_UNC_OR_PARITY)), 622 /*39*/ FLAG_ENTRY0("TxLaunchFifo7UncOrParityErr", 623 SEES(TX_LAUNCH_FIFO7_UNC_OR_PARITY)), 624 /*40*/ FLAG_ENTRY0("TxLaunchFifo8UncOrParityErr", 625 SEES(TX_LAUNCH_FIFO8_UNC_OR_PARITY)), 626 /*41*/ FLAG_ENTRY0("TxCreditReturnParityErr", SEES(TX_CREDIT_RETURN_PARITY)), 627 /*42*/ FLAG_ENTRY0("TxSbHdrUncErr", SEES(TX_SB_HDR_UNC)), 628 /*43*/ FLAG_ENTRY0("TxReadSdmaMemoryUncErr", SEES(TX_READ_SDMA_MEMORY_UNC)), 629 /*44*/ FLAG_ENTRY0("TxReadPioMemoryUncErr", SEES(TX_READ_PIO_MEMORY_UNC)), 630 /*45*/ FLAG_ENTRY0("TxEgressFifoUncErr", SEES(TX_EGRESS_FIFO_UNC)), 631 /*46*/ FLAG_ENTRY0("TxHcrcInsertionErr", SEES(TX_HCRC_INSERTION)), 632 /*47*/ FLAG_ENTRY0("TxCreditReturnVLErr", SEES(TX_CREDIT_RETURN_VL)), 633 /*48*/ FLAG_ENTRY0("TxLaunchFifo0CorErr", SEES(TX_LAUNCH_FIFO0_COR)), 634 /*49*/ FLAG_ENTRY0("TxLaunchFifo1CorErr", SEES(TX_LAUNCH_FIFO1_COR)), 635 /*50*/ FLAG_ENTRY0("TxLaunchFifo2CorErr", SEES(TX_LAUNCH_FIFO2_COR)), 636 /*51*/ FLAG_ENTRY0("TxLaunchFifo3CorErr", SEES(TX_LAUNCH_FIFO3_COR)), 637 /*52*/ FLAG_ENTRY0("TxLaunchFifo4CorErr", SEES(TX_LAUNCH_FIFO4_COR)), 638 /*53*/ FLAG_ENTRY0("TxLaunchFifo5CorErr", SEES(TX_LAUNCH_FIFO5_COR)), 639 /*54*/ FLAG_ENTRY0("TxLaunchFifo6CorErr", SEES(TX_LAUNCH_FIFO6_COR)), 640 /*55*/ FLAG_ENTRY0("TxLaunchFifo7CorErr", SEES(TX_LAUNCH_FIFO7_COR)), 641 /*56*/ FLAG_ENTRY0("TxLaunchFifo8CorErr", SEES(TX_LAUNCH_FIFO8_COR)), 642 /*57*/ FLAG_ENTRY0("TxCreditOverrunErr", SEES(TX_CREDIT_OVERRUN)), 643 /*58*/ FLAG_ENTRY0("TxSbHdrCorErr", SEES(TX_SB_HDR_COR)), 644 /*59*/ FLAG_ENTRY0("TxReadSdmaMemoryCorErr", SEES(TX_READ_SDMA_MEMORY_COR)), 645 /*60*/ FLAG_ENTRY0("TxReadPioMemoryCorErr", SEES(TX_READ_PIO_MEMORY_COR)), 646 /*61*/ FLAG_ENTRY0("TxEgressFifoCorErr", SEES(TX_EGRESS_FIFO_COR)), 647 /*62*/ FLAG_ENTRY0("TxReadSdmaMemoryCsrUncErr", 648 SEES(TX_READ_SDMA_MEMORY_CSR_UNC)), 649 /*63*/ FLAG_ENTRY0("TxReadPioMemoryCsrUncErr", 650 SEES(TX_READ_PIO_MEMORY_CSR_UNC)), 651 }; 652 653 /* 654 * TXE Egress Error Info flags 655 */ 656 #define SEEI(text) SEND_EGRESS_ERR_INFO_##text##_ERR_SMASK 657 static struct flag_table egress_err_info_flags[] = { 658 /* 0*/ FLAG_ENTRY0("Reserved", 0ull), 659 /* 1*/ FLAG_ENTRY0("VLErr", SEEI(VL)), 660 /* 2*/ FLAG_ENTRY0("JobKeyErr", SEEI(JOB_KEY)), 661 /* 3*/ FLAG_ENTRY0("JobKeyErr", SEEI(JOB_KEY)), 662 /* 4*/ FLAG_ENTRY0("PartitionKeyErr", SEEI(PARTITION_KEY)), 663 /* 5*/ FLAG_ENTRY0("SLIDErr", SEEI(SLID)), 664 /* 6*/ FLAG_ENTRY0("OpcodeErr", SEEI(OPCODE)), 665 /* 7*/ FLAG_ENTRY0("VLMappingErr", SEEI(VL_MAPPING)), 666 /* 8*/ FLAG_ENTRY0("RawErr", SEEI(RAW)), 667 /* 9*/ FLAG_ENTRY0("RawIPv6Err", SEEI(RAW_IPV6)), 668 /*10*/ FLAG_ENTRY0("GRHErr", SEEI(GRH)), 669 /*11*/ FLAG_ENTRY0("BypassErr", SEEI(BYPASS)), 670 /*12*/ FLAG_ENTRY0("KDETHPacketsErr", SEEI(KDETH_PACKETS)), 671 /*13*/ FLAG_ENTRY0("NonKDETHPacketsErr", SEEI(NON_KDETH_PACKETS)), 672 /*14*/ FLAG_ENTRY0("TooSmallIBPacketsErr", SEEI(TOO_SMALL_IB_PACKETS)), 673 /*15*/ FLAG_ENTRY0("TooSmallBypassPacketsErr", SEEI(TOO_SMALL_BYPASS_PACKETS)), 674 /*16*/ FLAG_ENTRY0("PbcTestErr", SEEI(PBC_TEST)), 675 /*17*/ FLAG_ENTRY0("BadPktLenErr", SEEI(BAD_PKT_LEN)), 676 /*18*/ FLAG_ENTRY0("TooLongIBPacketErr", SEEI(TOO_LONG_IB_PACKET)), 677 /*19*/ FLAG_ENTRY0("TooLongBypassPacketsErr", SEEI(TOO_LONG_BYPASS_PACKETS)), 678 /*20*/ FLAG_ENTRY0("PbcStaticRateControlErr", SEEI(PBC_STATIC_RATE_CONTROL)), 679 /*21*/ FLAG_ENTRY0("BypassBadPktLenErr", SEEI(BAD_PKT_LEN)), 680 }; 681 682 /* TXE Egress errors that cause an SPC freeze */ 683 #define ALL_TXE_EGRESS_FREEZE_ERR \ 684 (SEES(TX_EGRESS_FIFO_UNDERRUN_OR_PARITY) \ 685 | SEES(TX_PIO_LAUNCH_INTF_PARITY) \ 686 | SEES(TX_SDMA_LAUNCH_INTF_PARITY) \ 687 | SEES(TX_SBRD_CTL_STATE_MACHINE_PARITY) \ 688 | SEES(TX_LAUNCH_CSR_PARITY) \ 689 | SEES(TX_SBRD_CTL_CSR_PARITY) \ 690 | SEES(TX_CONFIG_PARITY) \ 691 | SEES(TX_LAUNCH_FIFO0_UNC_OR_PARITY) \ 692 | SEES(TX_LAUNCH_FIFO1_UNC_OR_PARITY) \ 693 | SEES(TX_LAUNCH_FIFO2_UNC_OR_PARITY) \ 694 | SEES(TX_LAUNCH_FIFO3_UNC_OR_PARITY) \ 695 | SEES(TX_LAUNCH_FIFO4_UNC_OR_PARITY) \ 696 | SEES(TX_LAUNCH_FIFO5_UNC_OR_PARITY) \ 697 | SEES(TX_LAUNCH_FIFO6_UNC_OR_PARITY) \ 698 | SEES(TX_LAUNCH_FIFO7_UNC_OR_PARITY) \ 699 | SEES(TX_LAUNCH_FIFO8_UNC_OR_PARITY) \ 700 | SEES(TX_CREDIT_RETURN_PARITY)) 701 702 /* 703 * TXE Send error flags 704 */ 705 #define SES(name) SEND_ERR_STATUS_SEND_##name##_ERR_SMASK 706 static struct flag_table send_err_status_flags[] = { 707 /* 0*/ FLAG_ENTRY0("SendCsrParityErr", SES(CSR_PARITY)), 708 /* 1*/ FLAG_ENTRY0("SendCsrReadBadAddrErr", SES(CSR_READ_BAD_ADDR)), 709 /* 2*/ FLAG_ENTRY0("SendCsrWriteBadAddrErr", SES(CSR_WRITE_BAD_ADDR)) 710 }; 711 712 /* 713 * TXE Send Context Error flags and consequences 714 */ 715 static struct flag_table sc_err_status_flags[] = { 716 /* 0*/ FLAG_ENTRY("InconsistentSop", 717 SEC_PACKET_DROPPED | SEC_SC_HALTED, 718 SEND_CTXT_ERR_STATUS_PIO_INCONSISTENT_SOP_ERR_SMASK), 719 /* 1*/ FLAG_ENTRY("DisallowedPacket", 720 SEC_PACKET_DROPPED | SEC_SC_HALTED, 721 SEND_CTXT_ERR_STATUS_PIO_DISALLOWED_PACKET_ERR_SMASK), 722 /* 2*/ FLAG_ENTRY("WriteCrossesBoundary", 723 SEC_WRITE_DROPPED | SEC_SC_HALTED, 724 SEND_CTXT_ERR_STATUS_PIO_WRITE_CROSSES_BOUNDARY_ERR_SMASK), 725 /* 3*/ FLAG_ENTRY("WriteOverflow", 726 SEC_WRITE_DROPPED | SEC_SC_HALTED, 727 SEND_CTXT_ERR_STATUS_PIO_WRITE_OVERFLOW_ERR_SMASK), 728 /* 4*/ FLAG_ENTRY("WriteOutOfBounds", 729 SEC_WRITE_DROPPED | SEC_SC_HALTED, 730 SEND_CTXT_ERR_STATUS_PIO_WRITE_OUT_OF_BOUNDS_ERR_SMASK), 731 /* 5-63 reserved*/ 732 }; 733 734 /* 735 * RXE Receive Error flags 736 */ 737 #define RXES(name) RCV_ERR_STATUS_RX_##name##_ERR_SMASK 738 static struct flag_table rxe_err_status_flags[] = { 739 /* 0*/ FLAG_ENTRY0("RxDmaCsrCorErr", RXES(DMA_CSR_COR)), 740 /* 1*/ FLAG_ENTRY0("RxDcIntfParityErr", RXES(DC_INTF_PARITY)), 741 /* 2*/ FLAG_ENTRY0("RxRcvHdrUncErr", RXES(RCV_HDR_UNC)), 742 /* 3*/ FLAG_ENTRY0("RxRcvHdrCorErr", RXES(RCV_HDR_COR)), 743 /* 4*/ FLAG_ENTRY0("RxRcvDataUncErr", RXES(RCV_DATA_UNC)), 744 /* 5*/ FLAG_ENTRY0("RxRcvDataCorErr", RXES(RCV_DATA_COR)), 745 /* 6*/ FLAG_ENTRY0("RxRcvQpMapTableUncErr", RXES(RCV_QP_MAP_TABLE_UNC)), 746 /* 7*/ FLAG_ENTRY0("RxRcvQpMapTableCorErr", RXES(RCV_QP_MAP_TABLE_COR)), 747 /* 8*/ FLAG_ENTRY0("RxRcvCsrParityErr", RXES(RCV_CSR_PARITY)), 748 /* 9*/ FLAG_ENTRY0("RxDcSopEopParityErr", RXES(DC_SOP_EOP_PARITY)), 749 /*10*/ FLAG_ENTRY0("RxDmaFlagUncErr", RXES(DMA_FLAG_UNC)), 750 /*11*/ FLAG_ENTRY0("RxDmaFlagCorErr", RXES(DMA_FLAG_COR)), 751 /*12*/ FLAG_ENTRY0("RxRcvFsmEncodingErr", RXES(RCV_FSM_ENCODING)), 752 /*13*/ FLAG_ENTRY0("RxRbufFreeListUncErr", RXES(RBUF_FREE_LIST_UNC)), 753 /*14*/ FLAG_ENTRY0("RxRbufFreeListCorErr", RXES(RBUF_FREE_LIST_COR)), 754 /*15*/ FLAG_ENTRY0("RxRbufLookupDesRegUncErr", RXES(RBUF_LOOKUP_DES_REG_UNC)), 755 /*16*/ FLAG_ENTRY0("RxRbufLookupDesRegUncCorErr", 756 RXES(RBUF_LOOKUP_DES_REG_UNC_COR)), 757 /*17*/ FLAG_ENTRY0("RxRbufLookupDesUncErr", RXES(RBUF_LOOKUP_DES_UNC)), 758 /*18*/ FLAG_ENTRY0("RxRbufLookupDesCorErr", RXES(RBUF_LOOKUP_DES_COR)), 759 /*19*/ FLAG_ENTRY0("RxRbufBlockListReadUncErr", 760 RXES(RBUF_BLOCK_LIST_READ_UNC)), 761 /*20*/ FLAG_ENTRY0("RxRbufBlockListReadCorErr", 762 RXES(RBUF_BLOCK_LIST_READ_COR)), 763 /*21*/ FLAG_ENTRY0("RxRbufCsrQHeadBufNumParityErr", 764 RXES(RBUF_CSR_QHEAD_BUF_NUM_PARITY)), 765 /*22*/ FLAG_ENTRY0("RxRbufCsrQEntCntParityErr", 766 RXES(RBUF_CSR_QENT_CNT_PARITY)), 767 /*23*/ FLAG_ENTRY0("RxRbufCsrQNextBufParityErr", 768 RXES(RBUF_CSR_QNEXT_BUF_PARITY)), 769 /*24*/ FLAG_ENTRY0("RxRbufCsrQVldBitParityErr", 770 RXES(RBUF_CSR_QVLD_BIT_PARITY)), 771 /*25*/ FLAG_ENTRY0("RxRbufCsrQHdPtrParityErr", RXES(RBUF_CSR_QHD_PTR_PARITY)), 772 /*26*/ FLAG_ENTRY0("RxRbufCsrQTlPtrParityErr", RXES(RBUF_CSR_QTL_PTR_PARITY)), 773 /*27*/ FLAG_ENTRY0("RxRbufCsrQNumOfPktParityErr", 774 RXES(RBUF_CSR_QNUM_OF_PKT_PARITY)), 775 /*28*/ FLAG_ENTRY0("RxRbufCsrQEOPDWParityErr", RXES(RBUF_CSR_QEOPDW_PARITY)), 776 /*29*/ FLAG_ENTRY0("RxRbufCtxIdParityErr", RXES(RBUF_CTX_ID_PARITY)), 777 /*30*/ FLAG_ENTRY0("RxRBufBadLookupErr", RXES(RBUF_BAD_LOOKUP)), 778 /*31*/ FLAG_ENTRY0("RxRbufFullErr", RXES(RBUF_FULL)), 779 /*32*/ FLAG_ENTRY0("RxRbufEmptyErr", RXES(RBUF_EMPTY)), 780 /*33*/ FLAG_ENTRY0("RxRbufFlRdAddrParityErr", RXES(RBUF_FL_RD_ADDR_PARITY)), 781 /*34*/ FLAG_ENTRY0("RxRbufFlWrAddrParityErr", RXES(RBUF_FL_WR_ADDR_PARITY)), 782 /*35*/ FLAG_ENTRY0("RxRbufFlInitdoneParityErr", 783 RXES(RBUF_FL_INITDONE_PARITY)), 784 /*36*/ FLAG_ENTRY0("RxRbufFlInitWrAddrParityErr", 785 RXES(RBUF_FL_INIT_WR_ADDR_PARITY)), 786 /*37*/ FLAG_ENTRY0("RxRbufNextFreeBufUncErr", RXES(RBUF_NEXT_FREE_BUF_UNC)), 787 /*38*/ FLAG_ENTRY0("RxRbufNextFreeBufCorErr", RXES(RBUF_NEXT_FREE_BUF_COR)), 788 /*39*/ FLAG_ENTRY0("RxLookupDesPart1UncErr", RXES(LOOKUP_DES_PART1_UNC)), 789 /*40*/ FLAG_ENTRY0("RxLookupDesPart1UncCorErr", 790 RXES(LOOKUP_DES_PART1_UNC_COR)), 791 /*41*/ FLAG_ENTRY0("RxLookupDesPart2ParityErr", 792 RXES(LOOKUP_DES_PART2_PARITY)), 793 /*42*/ FLAG_ENTRY0("RxLookupRcvArrayUncErr", RXES(LOOKUP_RCV_ARRAY_UNC)), 794 /*43*/ FLAG_ENTRY0("RxLookupRcvArrayCorErr", RXES(LOOKUP_RCV_ARRAY_COR)), 795 /*44*/ FLAG_ENTRY0("RxLookupCsrParityErr", RXES(LOOKUP_CSR_PARITY)), 796 /*45*/ FLAG_ENTRY0("RxHqIntrCsrParityErr", RXES(HQ_INTR_CSR_PARITY)), 797 /*46*/ FLAG_ENTRY0("RxHqIntrFsmErr", RXES(HQ_INTR_FSM)), 798 /*47*/ FLAG_ENTRY0("RxRbufDescPart1UncErr", RXES(RBUF_DESC_PART1_UNC)), 799 /*48*/ FLAG_ENTRY0("RxRbufDescPart1CorErr", RXES(RBUF_DESC_PART1_COR)), 800 /*49*/ FLAG_ENTRY0("RxRbufDescPart2UncErr", RXES(RBUF_DESC_PART2_UNC)), 801 /*50*/ FLAG_ENTRY0("RxRbufDescPart2CorErr", RXES(RBUF_DESC_PART2_COR)), 802 /*51*/ FLAG_ENTRY0("RxDmaHdrFifoRdUncErr", RXES(DMA_HDR_FIFO_RD_UNC)), 803 /*52*/ FLAG_ENTRY0("RxDmaHdrFifoRdCorErr", RXES(DMA_HDR_FIFO_RD_COR)), 804 /*53*/ FLAG_ENTRY0("RxDmaDataFifoRdUncErr", RXES(DMA_DATA_FIFO_RD_UNC)), 805 /*54*/ FLAG_ENTRY0("RxDmaDataFifoRdCorErr", RXES(DMA_DATA_FIFO_RD_COR)), 806 /*55*/ FLAG_ENTRY0("RxRbufDataUncErr", RXES(RBUF_DATA_UNC)), 807 /*56*/ FLAG_ENTRY0("RxRbufDataCorErr", RXES(RBUF_DATA_COR)), 808 /*57*/ FLAG_ENTRY0("RxDmaCsrParityErr", RXES(DMA_CSR_PARITY)), 809 /*58*/ FLAG_ENTRY0("RxDmaEqFsmEncodingErr", RXES(DMA_EQ_FSM_ENCODING)), 810 /*59*/ FLAG_ENTRY0("RxDmaDqFsmEncodingErr", RXES(DMA_DQ_FSM_ENCODING)), 811 /*60*/ FLAG_ENTRY0("RxDmaCsrUncErr", RXES(DMA_CSR_UNC)), 812 /*61*/ FLAG_ENTRY0("RxCsrReadBadAddrErr", RXES(CSR_READ_BAD_ADDR)), 813 /*62*/ FLAG_ENTRY0("RxCsrWriteBadAddrErr", RXES(CSR_WRITE_BAD_ADDR)), 814 /*63*/ FLAG_ENTRY0("RxCsrParityErr", RXES(CSR_PARITY)) 815 }; 816 817 /* RXE errors that will trigger an SPC freeze */ 818 #define ALL_RXE_FREEZE_ERR \ 819 (RCV_ERR_STATUS_RX_RCV_QP_MAP_TABLE_UNC_ERR_SMASK \ 820 | RCV_ERR_STATUS_RX_RCV_CSR_PARITY_ERR_SMASK \ 821 | RCV_ERR_STATUS_RX_DMA_FLAG_UNC_ERR_SMASK \ 822 | RCV_ERR_STATUS_RX_RCV_FSM_ENCODING_ERR_SMASK \ 823 | RCV_ERR_STATUS_RX_RBUF_FREE_LIST_UNC_ERR_SMASK \ 824 | RCV_ERR_STATUS_RX_RBUF_LOOKUP_DES_REG_UNC_ERR_SMASK \ 825 | RCV_ERR_STATUS_RX_RBUF_LOOKUP_DES_REG_UNC_COR_ERR_SMASK \ 826 | RCV_ERR_STATUS_RX_RBUF_LOOKUP_DES_UNC_ERR_SMASK \ 827 | RCV_ERR_STATUS_RX_RBUF_BLOCK_LIST_READ_UNC_ERR_SMASK \ 828 | RCV_ERR_STATUS_RX_RBUF_CSR_QHEAD_BUF_NUM_PARITY_ERR_SMASK \ 829 | RCV_ERR_STATUS_RX_RBUF_CSR_QENT_CNT_PARITY_ERR_SMASK \ 830 | RCV_ERR_STATUS_RX_RBUF_CSR_QNEXT_BUF_PARITY_ERR_SMASK \ 831 | RCV_ERR_STATUS_RX_RBUF_CSR_QVLD_BIT_PARITY_ERR_SMASK \ 832 | RCV_ERR_STATUS_RX_RBUF_CSR_QHD_PTR_PARITY_ERR_SMASK \ 833 | RCV_ERR_STATUS_RX_RBUF_CSR_QTL_PTR_PARITY_ERR_SMASK \ 834 | RCV_ERR_STATUS_RX_RBUF_CSR_QNUM_OF_PKT_PARITY_ERR_SMASK \ 835 | RCV_ERR_STATUS_RX_RBUF_CSR_QEOPDW_PARITY_ERR_SMASK \ 836 | RCV_ERR_STATUS_RX_RBUF_CTX_ID_PARITY_ERR_SMASK \ 837 | RCV_ERR_STATUS_RX_RBUF_BAD_LOOKUP_ERR_SMASK \ 838 | RCV_ERR_STATUS_RX_RBUF_FULL_ERR_SMASK \ 839 | RCV_ERR_STATUS_RX_RBUF_EMPTY_ERR_SMASK \ 840 | RCV_ERR_STATUS_RX_RBUF_FL_RD_ADDR_PARITY_ERR_SMASK \ 841 | RCV_ERR_STATUS_RX_RBUF_FL_WR_ADDR_PARITY_ERR_SMASK \ 842 | RCV_ERR_STATUS_RX_RBUF_FL_INITDONE_PARITY_ERR_SMASK \ 843 | RCV_ERR_STATUS_RX_RBUF_FL_INIT_WR_ADDR_PARITY_ERR_SMASK \ 844 | RCV_ERR_STATUS_RX_RBUF_NEXT_FREE_BUF_UNC_ERR_SMASK \ 845 | RCV_ERR_STATUS_RX_LOOKUP_DES_PART1_UNC_ERR_SMASK \ 846 | RCV_ERR_STATUS_RX_LOOKUP_DES_PART1_UNC_COR_ERR_SMASK \ 847 | RCV_ERR_STATUS_RX_LOOKUP_DES_PART2_PARITY_ERR_SMASK \ 848 | RCV_ERR_STATUS_RX_LOOKUP_RCV_ARRAY_UNC_ERR_SMASK \ 849 | RCV_ERR_STATUS_RX_LOOKUP_CSR_PARITY_ERR_SMASK \ 850 | RCV_ERR_STATUS_RX_HQ_INTR_CSR_PARITY_ERR_SMASK \ 851 | RCV_ERR_STATUS_RX_HQ_INTR_FSM_ERR_SMASK \ 852 | RCV_ERR_STATUS_RX_RBUF_DESC_PART1_UNC_ERR_SMASK \ 853 | RCV_ERR_STATUS_RX_RBUF_DESC_PART1_COR_ERR_SMASK \ 854 | RCV_ERR_STATUS_RX_RBUF_DESC_PART2_UNC_ERR_SMASK \ 855 | RCV_ERR_STATUS_RX_DMA_HDR_FIFO_RD_UNC_ERR_SMASK \ 856 | RCV_ERR_STATUS_RX_DMA_DATA_FIFO_RD_UNC_ERR_SMASK \ 857 | RCV_ERR_STATUS_RX_RBUF_DATA_UNC_ERR_SMASK \ 858 | RCV_ERR_STATUS_RX_DMA_CSR_PARITY_ERR_SMASK \ 859 | RCV_ERR_STATUS_RX_DMA_EQ_FSM_ENCODING_ERR_SMASK \ 860 | RCV_ERR_STATUS_RX_DMA_DQ_FSM_ENCODING_ERR_SMASK \ 861 | RCV_ERR_STATUS_RX_DMA_CSR_UNC_ERR_SMASK \ 862 | RCV_ERR_STATUS_RX_CSR_PARITY_ERR_SMASK) 863 864 #define RXE_FREEZE_ABORT_MASK \ 865 (RCV_ERR_STATUS_RX_DMA_CSR_UNC_ERR_SMASK | \ 866 RCV_ERR_STATUS_RX_DMA_HDR_FIFO_RD_UNC_ERR_SMASK | \ 867 RCV_ERR_STATUS_RX_DMA_DATA_FIFO_RD_UNC_ERR_SMASK) 868 869 /* 870 * DCC Error Flags 871 */ 872 #define DCCE(name) DCC_ERR_FLG_##name##_SMASK 873 static struct flag_table dcc_err_flags[] = { 874 FLAG_ENTRY0("bad_l2_err", DCCE(BAD_L2_ERR)), 875 FLAG_ENTRY0("bad_sc_err", DCCE(BAD_SC_ERR)), 876 FLAG_ENTRY0("bad_mid_tail_err", DCCE(BAD_MID_TAIL_ERR)), 877 FLAG_ENTRY0("bad_preemption_err", DCCE(BAD_PREEMPTION_ERR)), 878 FLAG_ENTRY0("preemption_err", DCCE(PREEMPTION_ERR)), 879 FLAG_ENTRY0("preemptionvl15_err", DCCE(PREEMPTIONVL15_ERR)), 880 FLAG_ENTRY0("bad_vl_marker_err", DCCE(BAD_VL_MARKER_ERR)), 881 FLAG_ENTRY0("bad_dlid_target_err", DCCE(BAD_DLID_TARGET_ERR)), 882 FLAG_ENTRY0("bad_lver_err", DCCE(BAD_LVER_ERR)), 883 FLAG_ENTRY0("uncorrectable_err", DCCE(UNCORRECTABLE_ERR)), 884 FLAG_ENTRY0("bad_crdt_ack_err", DCCE(BAD_CRDT_ACK_ERR)), 885 FLAG_ENTRY0("unsup_pkt_type", DCCE(UNSUP_PKT_TYPE)), 886 FLAG_ENTRY0("bad_ctrl_flit_err", DCCE(BAD_CTRL_FLIT_ERR)), 887 FLAG_ENTRY0("event_cntr_parity_err", DCCE(EVENT_CNTR_PARITY_ERR)), 888 FLAG_ENTRY0("event_cntr_rollover_err", DCCE(EVENT_CNTR_ROLLOVER_ERR)), 889 FLAG_ENTRY0("link_err", DCCE(LINK_ERR)), 890 FLAG_ENTRY0("misc_cntr_rollover_err", DCCE(MISC_CNTR_ROLLOVER_ERR)), 891 FLAG_ENTRY0("bad_ctrl_dist_err", DCCE(BAD_CTRL_DIST_ERR)), 892 FLAG_ENTRY0("bad_tail_dist_err", DCCE(BAD_TAIL_DIST_ERR)), 893 FLAG_ENTRY0("bad_head_dist_err", DCCE(BAD_HEAD_DIST_ERR)), 894 FLAG_ENTRY0("nonvl15_state_err", DCCE(NONVL15_STATE_ERR)), 895 FLAG_ENTRY0("vl15_multi_err", DCCE(VL15_MULTI_ERR)), 896 FLAG_ENTRY0("bad_pkt_length_err", DCCE(BAD_PKT_LENGTH_ERR)), 897 FLAG_ENTRY0("unsup_vl_err", DCCE(UNSUP_VL_ERR)), 898 FLAG_ENTRY0("perm_nvl15_err", DCCE(PERM_NVL15_ERR)), 899 FLAG_ENTRY0("slid_zero_err", DCCE(SLID_ZERO_ERR)), 900 FLAG_ENTRY0("dlid_zero_err", DCCE(DLID_ZERO_ERR)), 901 FLAG_ENTRY0("length_mtu_err", DCCE(LENGTH_MTU_ERR)), 902 FLAG_ENTRY0("rx_early_drop_err", DCCE(RX_EARLY_DROP_ERR)), 903 FLAG_ENTRY0("late_short_err", DCCE(LATE_SHORT_ERR)), 904 FLAG_ENTRY0("late_long_err", DCCE(LATE_LONG_ERR)), 905 FLAG_ENTRY0("late_ebp_err", DCCE(LATE_EBP_ERR)), 906 FLAG_ENTRY0("fpe_tx_fifo_ovflw_err", DCCE(FPE_TX_FIFO_OVFLW_ERR)), 907 FLAG_ENTRY0("fpe_tx_fifo_unflw_err", DCCE(FPE_TX_FIFO_UNFLW_ERR)), 908 FLAG_ENTRY0("csr_access_blocked_host", DCCE(CSR_ACCESS_BLOCKED_HOST)), 909 FLAG_ENTRY0("csr_access_blocked_uc", DCCE(CSR_ACCESS_BLOCKED_UC)), 910 FLAG_ENTRY0("tx_ctrl_parity_err", DCCE(TX_CTRL_PARITY_ERR)), 911 FLAG_ENTRY0("tx_ctrl_parity_mbe_err", DCCE(TX_CTRL_PARITY_MBE_ERR)), 912 FLAG_ENTRY0("tx_sc_parity_err", DCCE(TX_SC_PARITY_ERR)), 913 FLAG_ENTRY0("rx_ctrl_parity_mbe_err", DCCE(RX_CTRL_PARITY_MBE_ERR)), 914 FLAG_ENTRY0("csr_parity_err", DCCE(CSR_PARITY_ERR)), 915 FLAG_ENTRY0("csr_inval_addr", DCCE(CSR_INVAL_ADDR)), 916 FLAG_ENTRY0("tx_byte_shft_parity_err", DCCE(TX_BYTE_SHFT_PARITY_ERR)), 917 FLAG_ENTRY0("rx_byte_shft_parity_err", DCCE(RX_BYTE_SHFT_PARITY_ERR)), 918 FLAG_ENTRY0("fmconfig_err", DCCE(FMCONFIG_ERR)), 919 FLAG_ENTRY0("rcvport_err", DCCE(RCVPORT_ERR)), 920 }; 921 922 /* 923 * LCB error flags 924 */ 925 #define LCBE(name) DC_LCB_ERR_FLG_##name##_SMASK 926 static struct flag_table lcb_err_flags[] = { 927 /* 0*/ FLAG_ENTRY0("CSR_PARITY_ERR", LCBE(CSR_PARITY_ERR)), 928 /* 1*/ FLAG_ENTRY0("INVALID_CSR_ADDR", LCBE(INVALID_CSR_ADDR)), 929 /* 2*/ FLAG_ENTRY0("RST_FOR_FAILED_DESKEW", LCBE(RST_FOR_FAILED_DESKEW)), 930 /* 3*/ FLAG_ENTRY0("ALL_LNS_FAILED_REINIT_TEST", 931 LCBE(ALL_LNS_FAILED_REINIT_TEST)), 932 /* 4*/ FLAG_ENTRY0("LOST_REINIT_STALL_OR_TOS", LCBE(LOST_REINIT_STALL_OR_TOS)), 933 /* 5*/ FLAG_ENTRY0("TX_LESS_THAN_FOUR_LNS", LCBE(TX_LESS_THAN_FOUR_LNS)), 934 /* 6*/ FLAG_ENTRY0("RX_LESS_THAN_FOUR_LNS", LCBE(RX_LESS_THAN_FOUR_LNS)), 935 /* 7*/ FLAG_ENTRY0("SEQ_CRC_ERR", LCBE(SEQ_CRC_ERR)), 936 /* 8*/ FLAG_ENTRY0("REINIT_FROM_PEER", LCBE(REINIT_FROM_PEER)), 937 /* 9*/ FLAG_ENTRY0("REINIT_FOR_LN_DEGRADE", LCBE(REINIT_FOR_LN_DEGRADE)), 938 /*10*/ FLAG_ENTRY0("CRC_ERR_CNT_HIT_LIMIT", LCBE(CRC_ERR_CNT_HIT_LIMIT)), 939 /*11*/ FLAG_ENTRY0("RCLK_STOPPED", LCBE(RCLK_STOPPED)), 940 /*12*/ FLAG_ENTRY0("UNEXPECTED_REPLAY_MARKER", LCBE(UNEXPECTED_REPLAY_MARKER)), 941 /*13*/ FLAG_ENTRY0("UNEXPECTED_ROUND_TRIP_MARKER", 942 LCBE(UNEXPECTED_ROUND_TRIP_MARKER)), 943 /*14*/ FLAG_ENTRY0("ILLEGAL_NULL_LTP", LCBE(ILLEGAL_NULL_LTP)), 944 /*15*/ FLAG_ENTRY0("ILLEGAL_FLIT_ENCODING", LCBE(ILLEGAL_FLIT_ENCODING)), 945 /*16*/ FLAG_ENTRY0("FLIT_INPUT_BUF_OFLW", LCBE(FLIT_INPUT_BUF_OFLW)), 946 /*17*/ FLAG_ENTRY0("VL_ACK_INPUT_BUF_OFLW", LCBE(VL_ACK_INPUT_BUF_OFLW)), 947 /*18*/ FLAG_ENTRY0("VL_ACK_INPUT_PARITY_ERR", LCBE(VL_ACK_INPUT_PARITY_ERR)), 948 /*19*/ FLAG_ENTRY0("VL_ACK_INPUT_WRONG_CRC_MODE", 949 LCBE(VL_ACK_INPUT_WRONG_CRC_MODE)), 950 /*20*/ FLAG_ENTRY0("FLIT_INPUT_BUF_MBE", LCBE(FLIT_INPUT_BUF_MBE)), 951 /*21*/ FLAG_ENTRY0("FLIT_INPUT_BUF_SBE", LCBE(FLIT_INPUT_BUF_SBE)), 952 /*22*/ FLAG_ENTRY0("REPLAY_BUF_MBE", LCBE(REPLAY_BUF_MBE)), 953 /*23*/ FLAG_ENTRY0("REPLAY_BUF_SBE", LCBE(REPLAY_BUF_SBE)), 954 /*24*/ FLAG_ENTRY0("CREDIT_RETURN_FLIT_MBE", LCBE(CREDIT_RETURN_FLIT_MBE)), 955 /*25*/ FLAG_ENTRY0("RST_FOR_LINK_TIMEOUT", LCBE(RST_FOR_LINK_TIMEOUT)), 956 /*26*/ FLAG_ENTRY0("RST_FOR_INCOMPLT_RND_TRIP", 957 LCBE(RST_FOR_INCOMPLT_RND_TRIP)), 958 /*27*/ FLAG_ENTRY0("HOLD_REINIT", LCBE(HOLD_REINIT)), 959 /*28*/ FLAG_ENTRY0("NEG_EDGE_LINK_TRANSFER_ACTIVE", 960 LCBE(NEG_EDGE_LINK_TRANSFER_ACTIVE)), 961 /*29*/ FLAG_ENTRY0("REDUNDANT_FLIT_PARITY_ERR", 962 LCBE(REDUNDANT_FLIT_PARITY_ERR)) 963 }; 964 965 /* 966 * DC8051 Error Flags 967 */ 968 #define D8E(name) DC_DC8051_ERR_FLG_##name##_SMASK 969 static struct flag_table dc8051_err_flags[] = { 970 FLAG_ENTRY0("SET_BY_8051", D8E(SET_BY_8051)), 971 FLAG_ENTRY0("LOST_8051_HEART_BEAT", D8E(LOST_8051_HEART_BEAT)), 972 FLAG_ENTRY0("CRAM_MBE", D8E(CRAM_MBE)), 973 FLAG_ENTRY0("CRAM_SBE", D8E(CRAM_SBE)), 974 FLAG_ENTRY0("DRAM_MBE", D8E(DRAM_MBE)), 975 FLAG_ENTRY0("DRAM_SBE", D8E(DRAM_SBE)), 976 FLAG_ENTRY0("IRAM_MBE", D8E(IRAM_MBE)), 977 FLAG_ENTRY0("IRAM_SBE", D8E(IRAM_SBE)), 978 FLAG_ENTRY0("UNMATCHED_SECURE_MSG_ACROSS_BCC_LANES", 979 D8E(UNMATCHED_SECURE_MSG_ACROSS_BCC_LANES)), 980 FLAG_ENTRY0("INVALID_CSR_ADDR", D8E(INVALID_CSR_ADDR)), 981 }; 982 983 /* 984 * DC8051 Information Error flags 985 * 986 * Flags in DC8051_DBG_ERR_INFO_SET_BY_8051.ERROR field. 987 */ 988 static struct flag_table dc8051_info_err_flags[] = { 989 FLAG_ENTRY0("Spico ROM check failed", SPICO_ROM_FAILED), 990 FLAG_ENTRY0("Unknown frame received", UNKNOWN_FRAME), 991 FLAG_ENTRY0("Target BER not met", TARGET_BER_NOT_MET), 992 FLAG_ENTRY0("Serdes internal loopback failure", 993 FAILED_SERDES_INTERNAL_LOOPBACK), 994 FLAG_ENTRY0("Failed SerDes init", FAILED_SERDES_INIT), 995 FLAG_ENTRY0("Failed LNI(Polling)", FAILED_LNI_POLLING), 996 FLAG_ENTRY0("Failed LNI(Debounce)", FAILED_LNI_DEBOUNCE), 997 FLAG_ENTRY0("Failed LNI(EstbComm)", FAILED_LNI_ESTBCOMM), 998 FLAG_ENTRY0("Failed LNI(OptEq)", FAILED_LNI_OPTEQ), 999 FLAG_ENTRY0("Failed LNI(VerifyCap_1)", FAILED_LNI_VERIFY_CAP1), 1000 FLAG_ENTRY0("Failed LNI(VerifyCap_2)", FAILED_LNI_VERIFY_CAP2), 1001 FLAG_ENTRY0("Failed LNI(ConfigLT)", FAILED_LNI_CONFIGLT), 1002 FLAG_ENTRY0("Host Handshake Timeout", HOST_HANDSHAKE_TIMEOUT), 1003 FLAG_ENTRY0("External Device Request Timeout", 1004 EXTERNAL_DEVICE_REQ_TIMEOUT), 1005 }; 1006 1007 /* 1008 * DC8051 Information Host Information flags 1009 * 1010 * Flags in DC8051_DBG_ERR_INFO_SET_BY_8051.HOST_MSG field. 1011 */ 1012 static struct flag_table dc8051_info_host_msg_flags[] = { 1013 FLAG_ENTRY0("Host request done", 0x0001), 1014 FLAG_ENTRY0("BC PWR_MGM message", 0x0002), 1015 FLAG_ENTRY0("BC SMA message", 0x0004), 1016 FLAG_ENTRY0("BC Unknown message (BCC)", 0x0008), 1017 FLAG_ENTRY0("BC Unknown message (LCB)", 0x0010), 1018 FLAG_ENTRY0("External device config request", 0x0020), 1019 FLAG_ENTRY0("VerifyCap all frames received", 0x0040), 1020 FLAG_ENTRY0("LinkUp achieved", 0x0080), 1021 FLAG_ENTRY0("Link going down", 0x0100), 1022 FLAG_ENTRY0("Link width downgraded", 0x0200), 1023 }; 1024 1025 static u32 encoded_size(u32 size); 1026 static u32 chip_to_opa_lstate(struct hfi1_devdata *dd, u32 chip_lstate); 1027 static int set_physical_link_state(struct hfi1_devdata *dd, u64 state); 1028 static void read_vc_remote_phy(struct hfi1_devdata *dd, u8 *power_management, 1029 u8 *continuous); 1030 static void read_vc_remote_fabric(struct hfi1_devdata *dd, u8 *vau, u8 *z, 1031 u8 *vcu, u16 *vl15buf, u8 *crc_sizes); 1032 static void read_vc_remote_link_width(struct hfi1_devdata *dd, 1033 u8 *remote_tx_rate, u16 *link_widths); 1034 static void read_vc_local_link_mode(struct hfi1_devdata *dd, u8 *misc_bits, 1035 u8 *flag_bits, u16 *link_widths); 1036 static void read_remote_device_id(struct hfi1_devdata *dd, u16 *device_id, 1037 u8 *device_rev); 1038 static void read_local_lni(struct hfi1_devdata *dd, u8 *enable_lane_rx); 1039 static int read_tx_settings(struct hfi1_devdata *dd, u8 *enable_lane_tx, 1040 u8 *tx_polarity_inversion, 1041 u8 *rx_polarity_inversion, u8 *max_rate); 1042 static void handle_sdma_eng_err(struct hfi1_devdata *dd, 1043 unsigned int context, u64 err_status); 1044 static void handle_qsfp_int(struct hfi1_devdata *dd, u32 source, u64 reg); 1045 static void handle_dcc_err(struct hfi1_devdata *dd, 1046 unsigned int context, u64 err_status); 1047 static void handle_lcb_err(struct hfi1_devdata *dd, 1048 unsigned int context, u64 err_status); 1049 static void handle_8051_interrupt(struct hfi1_devdata *dd, u32 unused, u64 reg); 1050 static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1051 static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1052 static void handle_misc_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1053 static void handle_pio_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1054 static void handle_sdma_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1055 static void handle_egress_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1056 static void handle_txe_err(struct hfi1_devdata *dd, u32 unused, u64 reg); 1057 static void set_partition_keys(struct hfi1_pportdata *ppd); 1058 static const char *link_state_name(u32 state); 1059 static const char *link_state_reason_name(struct hfi1_pportdata *ppd, 1060 u32 state); 1061 static int do_8051_command(struct hfi1_devdata *dd, u32 type, u64 in_data, 1062 u64 *out_data); 1063 static int read_idle_sma(struct hfi1_devdata *dd, u64 *data); 1064 static int thermal_init(struct hfi1_devdata *dd); 1065 1066 static void update_statusp(struct hfi1_pportdata *ppd, u32 state); 1067 static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd, 1068 int msecs); 1069 static int wait_logical_linkstate(struct hfi1_pportdata *ppd, u32 state, 1070 int msecs); 1071 static void log_state_transition(struct hfi1_pportdata *ppd, u32 state); 1072 static void log_physical_state(struct hfi1_pportdata *ppd, u32 state); 1073 static int wait_physical_linkstate(struct hfi1_pportdata *ppd, u32 state, 1074 int msecs); 1075 static int wait_phys_link_out_of_offline(struct hfi1_pportdata *ppd, 1076 int msecs); 1077 static void read_planned_down_reason_code(struct hfi1_devdata *dd, u8 *pdrrc); 1078 static void read_link_down_reason(struct hfi1_devdata *dd, u8 *ldr); 1079 static void handle_temp_err(struct hfi1_devdata *dd); 1080 static void dc_shutdown(struct hfi1_devdata *dd); 1081 static void dc_start(struct hfi1_devdata *dd); 1082 static int qos_rmt_entries(struct hfi1_devdata *dd, unsigned int *mp, 1083 unsigned int *np); 1084 static void clear_full_mgmt_pkey(struct hfi1_pportdata *ppd); 1085 static int wait_link_transfer_active(struct hfi1_devdata *dd, int wait_ms); 1086 static void clear_rsm_rule(struct hfi1_devdata *dd, u8 rule_index); 1087 static void update_xmit_counters(struct hfi1_pportdata *ppd, u16 link_width); 1088 1089 /* 1090 * Error interrupt table entry. This is used as input to the interrupt 1091 * "clear down" routine used for all second tier error interrupt register. 1092 * Second tier interrupt registers have a single bit representing them 1093 * in the top-level CceIntStatus. 1094 */ 1095 struct err_reg_info { 1096 u32 status; /* status CSR offset */ 1097 u32 clear; /* clear CSR offset */ 1098 u32 mask; /* mask CSR offset */ 1099 void (*handler)(struct hfi1_devdata *dd, u32 source, u64 reg); 1100 const char *desc; 1101 }; 1102 1103 #define NUM_MISC_ERRS (IS_GENERAL_ERR_END + 1 - IS_GENERAL_ERR_START) 1104 #define NUM_DC_ERRS (IS_DC_END + 1 - IS_DC_START) 1105 #define NUM_VARIOUS (IS_VARIOUS_END + 1 - IS_VARIOUS_START) 1106 1107 /* 1108 * Helpers for building HFI and DC error interrupt table entries. Different 1109 * helpers are needed because of inconsistent register names. 1110 */ 1111 #define EE(reg, handler, desc) \ 1112 { reg##_STATUS, reg##_CLEAR, reg##_MASK, \ 1113 handler, desc } 1114 #define DC_EE1(reg, handler, desc) \ 1115 { reg##_FLG, reg##_FLG_CLR, reg##_FLG_EN, handler, desc } 1116 #define DC_EE2(reg, handler, desc) \ 1117 { reg##_FLG, reg##_CLR, reg##_EN, handler, desc } 1118 1119 /* 1120 * Table of the "misc" grouping of error interrupts. Each entry refers to 1121 * another register containing more information. 1122 */ 1123 static const struct err_reg_info misc_errs[NUM_MISC_ERRS] = { 1124 /* 0*/ EE(CCE_ERR, handle_cce_err, "CceErr"), 1125 /* 1*/ EE(RCV_ERR, handle_rxe_err, "RxeErr"), 1126 /* 2*/ EE(MISC_ERR, handle_misc_err, "MiscErr"), 1127 /* 3*/ { 0, 0, 0, NULL }, /* reserved */ 1128 /* 4*/ EE(SEND_PIO_ERR, handle_pio_err, "PioErr"), 1129 /* 5*/ EE(SEND_DMA_ERR, handle_sdma_err, "SDmaErr"), 1130 /* 6*/ EE(SEND_EGRESS_ERR, handle_egress_err, "EgressErr"), 1131 /* 7*/ EE(SEND_ERR, handle_txe_err, "TxeErr") 1132 /* the rest are reserved */ 1133 }; 1134 1135 /* 1136 * Index into the Various section of the interrupt sources 1137 * corresponding to the Critical Temperature interrupt. 1138 */ 1139 #define TCRIT_INT_SOURCE 4 1140 1141 /* 1142 * SDMA error interrupt entry - refers to another register containing more 1143 * information. 1144 */ 1145 static const struct err_reg_info sdma_eng_err = 1146 EE(SEND_DMA_ENG_ERR, handle_sdma_eng_err, "SDmaEngErr"); 1147 1148 static const struct err_reg_info various_err[NUM_VARIOUS] = { 1149 /* 0*/ { 0, 0, 0, NULL }, /* PbcInt */ 1150 /* 1*/ { 0, 0, 0, NULL }, /* GpioAssertInt */ 1151 /* 2*/ EE(ASIC_QSFP1, handle_qsfp_int, "QSFP1"), 1152 /* 3*/ EE(ASIC_QSFP2, handle_qsfp_int, "QSFP2"), 1153 /* 4*/ { 0, 0, 0, NULL }, /* TCritInt */ 1154 /* rest are reserved */ 1155 }; 1156 1157 /* 1158 * The DC encoding of mtu_cap for 10K MTU in the DCC_CFG_PORT_CONFIG 1159 * register can not be derived from the MTU value because 10K is not 1160 * a power of 2. Therefore, we need a constant. Everything else can 1161 * be calculated. 1162 */ 1163 #define DCC_CFG_PORT_MTU_CAP_10240 7 1164 1165 /* 1166 * Table of the DC grouping of error interrupts. Each entry refers to 1167 * another register containing more information. 1168 */ 1169 static const struct err_reg_info dc_errs[NUM_DC_ERRS] = { 1170 /* 0*/ DC_EE1(DCC_ERR, handle_dcc_err, "DCC Err"), 1171 /* 1*/ DC_EE2(DC_LCB_ERR, handle_lcb_err, "LCB Err"), 1172 /* 2*/ DC_EE2(DC_DC8051_ERR, handle_8051_interrupt, "DC8051 Interrupt"), 1173 /* 3*/ /* dc_lbm_int - special, see is_dc_int() */ 1174 /* the rest are reserved */ 1175 }; 1176 1177 struct cntr_entry { 1178 /* 1179 * counter name 1180 */ 1181 char *name; 1182 1183 /* 1184 * csr to read for name (if applicable) 1185 */ 1186 u64 csr; 1187 1188 /* 1189 * offset into dd or ppd to store the counter's value 1190 */ 1191 int offset; 1192 1193 /* 1194 * flags 1195 */ 1196 u8 flags; 1197 1198 /* 1199 * accessor for stat element, context either dd or ppd 1200 */ 1201 u64 (*rw_cntr)(const struct cntr_entry *, void *context, int vl, 1202 int mode, u64 data); 1203 }; 1204 1205 #define C_RCV_HDR_OVF_FIRST C_RCV_HDR_OVF_0 1206 #define C_RCV_HDR_OVF_LAST C_RCV_HDR_OVF_159 1207 1208 #define CNTR_ELEM(name, csr, offset, flags, accessor) \ 1209 { \ 1210 name, \ 1211 csr, \ 1212 offset, \ 1213 flags, \ 1214 accessor \ 1215 } 1216 1217 /* 32bit RXE */ 1218 #define RXE32_PORT_CNTR_ELEM(name, counter, flags) \ 1219 CNTR_ELEM(#name, \ 1220 (counter * 8 + RCV_COUNTER_ARRAY32), \ 1221 0, flags | CNTR_32BIT, \ 1222 port_access_u32_csr) 1223 1224 #define RXE32_DEV_CNTR_ELEM(name, counter, flags) \ 1225 CNTR_ELEM(#name, \ 1226 (counter * 8 + RCV_COUNTER_ARRAY32), \ 1227 0, flags | CNTR_32BIT, \ 1228 dev_access_u32_csr) 1229 1230 /* 64bit RXE */ 1231 #define RXE64_PORT_CNTR_ELEM(name, counter, flags) \ 1232 CNTR_ELEM(#name, \ 1233 (counter * 8 + RCV_COUNTER_ARRAY64), \ 1234 0, flags, \ 1235 port_access_u64_csr) 1236 1237 #define RXE64_DEV_CNTR_ELEM(name, counter, flags) \ 1238 CNTR_ELEM(#name, \ 1239 (counter * 8 + RCV_COUNTER_ARRAY64), \ 1240 0, flags, \ 1241 dev_access_u64_csr) 1242 1243 #define OVR_LBL(ctx) C_RCV_HDR_OVF_ ## ctx 1244 #define OVR_ELM(ctx) \ 1245 CNTR_ELEM("RcvHdrOvr" #ctx, \ 1246 (RCV_HDR_OVFL_CNT + ctx * 0x100), \ 1247 0, CNTR_NORMAL, port_access_u64_csr) 1248 1249 /* 32bit TXE */ 1250 #define TXE32_PORT_CNTR_ELEM(name, counter, flags) \ 1251 CNTR_ELEM(#name, \ 1252 (counter * 8 + SEND_COUNTER_ARRAY32), \ 1253 0, flags | CNTR_32BIT, \ 1254 port_access_u32_csr) 1255 1256 /* 64bit TXE */ 1257 #define TXE64_PORT_CNTR_ELEM(name, counter, flags) \ 1258 CNTR_ELEM(#name, \ 1259 (counter * 8 + SEND_COUNTER_ARRAY64), \ 1260 0, flags, \ 1261 port_access_u64_csr) 1262 1263 # define TX64_DEV_CNTR_ELEM(name, counter, flags) \ 1264 CNTR_ELEM(#name,\ 1265 counter * 8 + SEND_COUNTER_ARRAY64, \ 1266 0, \ 1267 flags, \ 1268 dev_access_u64_csr) 1269 1270 /* CCE */ 1271 #define CCE_PERF_DEV_CNTR_ELEM(name, counter, flags) \ 1272 CNTR_ELEM(#name, \ 1273 (counter * 8 + CCE_COUNTER_ARRAY32), \ 1274 0, flags | CNTR_32BIT, \ 1275 dev_access_u32_csr) 1276 1277 #define CCE_INT_DEV_CNTR_ELEM(name, counter, flags) \ 1278 CNTR_ELEM(#name, \ 1279 (counter * 8 + CCE_INT_COUNTER_ARRAY32), \ 1280 0, flags | CNTR_32BIT, \ 1281 dev_access_u32_csr) 1282 1283 /* DC */ 1284 #define DC_PERF_CNTR(name, counter, flags) \ 1285 CNTR_ELEM(#name, \ 1286 counter, \ 1287 0, \ 1288 flags, \ 1289 dev_access_u64_csr) 1290 1291 #define DC_PERF_CNTR_LCB(name, counter, flags) \ 1292 CNTR_ELEM(#name, \ 1293 counter, \ 1294 0, \ 1295 flags, \ 1296 dc_access_lcb_cntr) 1297 1298 /* ibp counters */ 1299 #define SW_IBP_CNTR(name, cntr) \ 1300 CNTR_ELEM(#name, \ 1301 0, \ 1302 0, \ 1303 CNTR_SYNTH, \ 1304 access_ibp_##cntr) 1305 1306 /** 1307 * hfi_addr_from_offset - return addr for readq/writeq 1308 * @dd - the dd device 1309 * @offset - the offset of the CSR within bar0 1310 * 1311 * This routine selects the appropriate base address 1312 * based on the indicated offset. 1313 */ 1314 static inline void __iomem *hfi1_addr_from_offset( 1315 const struct hfi1_devdata *dd, 1316 u32 offset) 1317 { 1318 if (offset >= dd->base2_start) 1319 return dd->kregbase2 + (offset - dd->base2_start); 1320 return dd->kregbase1 + offset; 1321 } 1322 1323 /** 1324 * read_csr - read CSR at the indicated offset 1325 * @dd - the dd device 1326 * @offset - the offset of the CSR within bar0 1327 * 1328 * Return: the value read or all FF's if there 1329 * is no mapping 1330 */ 1331 u64 read_csr(const struct hfi1_devdata *dd, u32 offset) 1332 { 1333 if (dd->flags & HFI1_PRESENT) 1334 return readq(hfi1_addr_from_offset(dd, offset)); 1335 return -1; 1336 } 1337 1338 /** 1339 * write_csr - write CSR at the indicated offset 1340 * @dd - the dd device 1341 * @offset - the offset of the CSR within bar0 1342 * @value - value to write 1343 */ 1344 void write_csr(const struct hfi1_devdata *dd, u32 offset, u64 value) 1345 { 1346 if (dd->flags & HFI1_PRESENT) { 1347 void __iomem *base = hfi1_addr_from_offset(dd, offset); 1348 1349 /* avoid write to RcvArray */ 1350 if (WARN_ON(offset >= RCV_ARRAY && offset < dd->base2_start)) 1351 return; 1352 writeq(value, base); 1353 } 1354 } 1355 1356 /** 1357 * get_csr_addr - return te iomem address for offset 1358 * @dd - the dd device 1359 * @offset - the offset of the CSR within bar0 1360 * 1361 * Return: The iomem address to use in subsequent 1362 * writeq/readq operations. 1363 */ 1364 void __iomem *get_csr_addr( 1365 const struct hfi1_devdata *dd, 1366 u32 offset) 1367 { 1368 if (dd->flags & HFI1_PRESENT) 1369 return hfi1_addr_from_offset(dd, offset); 1370 return NULL; 1371 } 1372 1373 static inline u64 read_write_csr(const struct hfi1_devdata *dd, u32 csr, 1374 int mode, u64 value) 1375 { 1376 u64 ret; 1377 1378 if (mode == CNTR_MODE_R) { 1379 ret = read_csr(dd, csr); 1380 } else if (mode == CNTR_MODE_W) { 1381 write_csr(dd, csr, value); 1382 ret = value; 1383 } else { 1384 dd_dev_err(dd, "Invalid cntr register access mode"); 1385 return 0; 1386 } 1387 1388 hfi1_cdbg(CNTR, "csr 0x%x val 0x%llx mode %d", csr, ret, mode); 1389 return ret; 1390 } 1391 1392 /* Dev Access */ 1393 static u64 dev_access_u32_csr(const struct cntr_entry *entry, 1394 void *context, int vl, int mode, u64 data) 1395 { 1396 struct hfi1_devdata *dd = context; 1397 u64 csr = entry->csr; 1398 1399 if (entry->flags & CNTR_SDMA) { 1400 if (vl == CNTR_INVALID_VL) 1401 return 0; 1402 csr += 0x100 * vl; 1403 } else { 1404 if (vl != CNTR_INVALID_VL) 1405 return 0; 1406 } 1407 return read_write_csr(dd, csr, mode, data); 1408 } 1409 1410 static u64 access_sde_err_cnt(const struct cntr_entry *entry, 1411 void *context, int idx, int mode, u64 data) 1412 { 1413 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1414 1415 if (dd->per_sdma && idx < dd->num_sdma) 1416 return dd->per_sdma[idx].err_cnt; 1417 return 0; 1418 } 1419 1420 static u64 access_sde_int_cnt(const struct cntr_entry *entry, 1421 void *context, int idx, int mode, u64 data) 1422 { 1423 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1424 1425 if (dd->per_sdma && idx < dd->num_sdma) 1426 return dd->per_sdma[idx].sdma_int_cnt; 1427 return 0; 1428 } 1429 1430 static u64 access_sde_idle_int_cnt(const struct cntr_entry *entry, 1431 void *context, int idx, int mode, u64 data) 1432 { 1433 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1434 1435 if (dd->per_sdma && idx < dd->num_sdma) 1436 return dd->per_sdma[idx].idle_int_cnt; 1437 return 0; 1438 } 1439 1440 static u64 access_sde_progress_int_cnt(const struct cntr_entry *entry, 1441 void *context, int idx, int mode, 1442 u64 data) 1443 { 1444 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1445 1446 if (dd->per_sdma && idx < dd->num_sdma) 1447 return dd->per_sdma[idx].progress_int_cnt; 1448 return 0; 1449 } 1450 1451 static u64 dev_access_u64_csr(const struct cntr_entry *entry, void *context, 1452 int vl, int mode, u64 data) 1453 { 1454 struct hfi1_devdata *dd = context; 1455 1456 u64 val = 0; 1457 u64 csr = entry->csr; 1458 1459 if (entry->flags & CNTR_VL) { 1460 if (vl == CNTR_INVALID_VL) 1461 return 0; 1462 csr += 8 * vl; 1463 } else { 1464 if (vl != CNTR_INVALID_VL) 1465 return 0; 1466 } 1467 1468 val = read_write_csr(dd, csr, mode, data); 1469 return val; 1470 } 1471 1472 static u64 dc_access_lcb_cntr(const struct cntr_entry *entry, void *context, 1473 int vl, int mode, u64 data) 1474 { 1475 struct hfi1_devdata *dd = context; 1476 u32 csr = entry->csr; 1477 int ret = 0; 1478 1479 if (vl != CNTR_INVALID_VL) 1480 return 0; 1481 if (mode == CNTR_MODE_R) 1482 ret = read_lcb_csr(dd, csr, &data); 1483 else if (mode == CNTR_MODE_W) 1484 ret = write_lcb_csr(dd, csr, data); 1485 1486 if (ret) { 1487 dd_dev_err(dd, "Could not acquire LCB for counter 0x%x", csr); 1488 return 0; 1489 } 1490 1491 hfi1_cdbg(CNTR, "csr 0x%x val 0x%llx mode %d", csr, data, mode); 1492 return data; 1493 } 1494 1495 /* Port Access */ 1496 static u64 port_access_u32_csr(const struct cntr_entry *entry, void *context, 1497 int vl, int mode, u64 data) 1498 { 1499 struct hfi1_pportdata *ppd = context; 1500 1501 if (vl != CNTR_INVALID_VL) 1502 return 0; 1503 return read_write_csr(ppd->dd, entry->csr, mode, data); 1504 } 1505 1506 static u64 port_access_u64_csr(const struct cntr_entry *entry, 1507 void *context, int vl, int mode, u64 data) 1508 { 1509 struct hfi1_pportdata *ppd = context; 1510 u64 val; 1511 u64 csr = entry->csr; 1512 1513 if (entry->flags & CNTR_VL) { 1514 if (vl == CNTR_INVALID_VL) 1515 return 0; 1516 csr += 8 * vl; 1517 } else { 1518 if (vl != CNTR_INVALID_VL) 1519 return 0; 1520 } 1521 val = read_write_csr(ppd->dd, csr, mode, data); 1522 return val; 1523 } 1524 1525 /* Software defined */ 1526 static inline u64 read_write_sw(struct hfi1_devdata *dd, u64 *cntr, int mode, 1527 u64 data) 1528 { 1529 u64 ret; 1530 1531 if (mode == CNTR_MODE_R) { 1532 ret = *cntr; 1533 } else if (mode == CNTR_MODE_W) { 1534 *cntr = data; 1535 ret = data; 1536 } else { 1537 dd_dev_err(dd, "Invalid cntr sw access mode"); 1538 return 0; 1539 } 1540 1541 hfi1_cdbg(CNTR, "val 0x%llx mode %d", ret, mode); 1542 1543 return ret; 1544 } 1545 1546 static u64 access_sw_link_dn_cnt(const struct cntr_entry *entry, void *context, 1547 int vl, int mode, u64 data) 1548 { 1549 struct hfi1_pportdata *ppd = context; 1550 1551 if (vl != CNTR_INVALID_VL) 1552 return 0; 1553 return read_write_sw(ppd->dd, &ppd->link_downed, mode, data); 1554 } 1555 1556 static u64 access_sw_link_up_cnt(const struct cntr_entry *entry, void *context, 1557 int vl, int mode, u64 data) 1558 { 1559 struct hfi1_pportdata *ppd = context; 1560 1561 if (vl != CNTR_INVALID_VL) 1562 return 0; 1563 return read_write_sw(ppd->dd, &ppd->link_up, mode, data); 1564 } 1565 1566 static u64 access_sw_unknown_frame_cnt(const struct cntr_entry *entry, 1567 void *context, int vl, int mode, 1568 u64 data) 1569 { 1570 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; 1571 1572 if (vl != CNTR_INVALID_VL) 1573 return 0; 1574 return read_write_sw(ppd->dd, &ppd->unknown_frame_count, mode, data); 1575 } 1576 1577 static u64 access_sw_xmit_discards(const struct cntr_entry *entry, 1578 void *context, int vl, int mode, u64 data) 1579 { 1580 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; 1581 u64 zero = 0; 1582 u64 *counter; 1583 1584 if (vl == CNTR_INVALID_VL) 1585 counter = &ppd->port_xmit_discards; 1586 else if (vl >= 0 && vl < C_VL_COUNT) 1587 counter = &ppd->port_xmit_discards_vl[vl]; 1588 else 1589 counter = &zero; 1590 1591 return read_write_sw(ppd->dd, counter, mode, data); 1592 } 1593 1594 static u64 access_xmit_constraint_errs(const struct cntr_entry *entry, 1595 void *context, int vl, int mode, 1596 u64 data) 1597 { 1598 struct hfi1_pportdata *ppd = context; 1599 1600 if (vl != CNTR_INVALID_VL) 1601 return 0; 1602 1603 return read_write_sw(ppd->dd, &ppd->port_xmit_constraint_errors, 1604 mode, data); 1605 } 1606 1607 static u64 access_rcv_constraint_errs(const struct cntr_entry *entry, 1608 void *context, int vl, int mode, u64 data) 1609 { 1610 struct hfi1_pportdata *ppd = context; 1611 1612 if (vl != CNTR_INVALID_VL) 1613 return 0; 1614 1615 return read_write_sw(ppd->dd, &ppd->port_rcv_constraint_errors, 1616 mode, data); 1617 } 1618 1619 u64 get_all_cpu_total(u64 __percpu *cntr) 1620 { 1621 int cpu; 1622 u64 counter = 0; 1623 1624 for_each_possible_cpu(cpu) 1625 counter += *per_cpu_ptr(cntr, cpu); 1626 return counter; 1627 } 1628 1629 static u64 read_write_cpu(struct hfi1_devdata *dd, u64 *z_val, 1630 u64 __percpu *cntr, 1631 int vl, int mode, u64 data) 1632 { 1633 u64 ret = 0; 1634 1635 if (vl != CNTR_INVALID_VL) 1636 return 0; 1637 1638 if (mode == CNTR_MODE_R) { 1639 ret = get_all_cpu_total(cntr) - *z_val; 1640 } else if (mode == CNTR_MODE_W) { 1641 /* A write can only zero the counter */ 1642 if (data == 0) 1643 *z_val = get_all_cpu_total(cntr); 1644 else 1645 dd_dev_err(dd, "Per CPU cntrs can only be zeroed"); 1646 } else { 1647 dd_dev_err(dd, "Invalid cntr sw cpu access mode"); 1648 return 0; 1649 } 1650 1651 return ret; 1652 } 1653 1654 static u64 access_sw_cpu_intr(const struct cntr_entry *entry, 1655 void *context, int vl, int mode, u64 data) 1656 { 1657 struct hfi1_devdata *dd = context; 1658 1659 return read_write_cpu(dd, &dd->z_int_counter, dd->int_counter, vl, 1660 mode, data); 1661 } 1662 1663 static u64 access_sw_cpu_rcv_limit(const struct cntr_entry *entry, 1664 void *context, int vl, int mode, u64 data) 1665 { 1666 struct hfi1_devdata *dd = context; 1667 1668 return read_write_cpu(dd, &dd->z_rcv_limit, dd->rcv_limit, vl, 1669 mode, data); 1670 } 1671 1672 static u64 access_sw_pio_wait(const struct cntr_entry *entry, 1673 void *context, int vl, int mode, u64 data) 1674 { 1675 struct hfi1_devdata *dd = context; 1676 1677 return dd->verbs_dev.n_piowait; 1678 } 1679 1680 static u64 access_sw_pio_drain(const struct cntr_entry *entry, 1681 void *context, int vl, int mode, u64 data) 1682 { 1683 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1684 1685 return dd->verbs_dev.n_piodrain; 1686 } 1687 1688 static u64 access_sw_vtx_wait(const struct cntr_entry *entry, 1689 void *context, int vl, int mode, u64 data) 1690 { 1691 struct hfi1_devdata *dd = context; 1692 1693 return dd->verbs_dev.n_txwait; 1694 } 1695 1696 static u64 access_sw_kmem_wait(const struct cntr_entry *entry, 1697 void *context, int vl, int mode, u64 data) 1698 { 1699 struct hfi1_devdata *dd = context; 1700 1701 return dd->verbs_dev.n_kmem_wait; 1702 } 1703 1704 static u64 access_sw_send_schedule(const struct cntr_entry *entry, 1705 void *context, int vl, int mode, u64 data) 1706 { 1707 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1708 1709 return read_write_cpu(dd, &dd->z_send_schedule, dd->send_schedule, vl, 1710 mode, data); 1711 } 1712 1713 /* Software counters for the error status bits within MISC_ERR_STATUS */ 1714 static u64 access_misc_pll_lock_fail_err_cnt(const struct cntr_entry *entry, 1715 void *context, int vl, int mode, 1716 u64 data) 1717 { 1718 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1719 1720 return dd->misc_err_status_cnt[12]; 1721 } 1722 1723 static u64 access_misc_mbist_fail_err_cnt(const struct cntr_entry *entry, 1724 void *context, int vl, int mode, 1725 u64 data) 1726 { 1727 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1728 1729 return dd->misc_err_status_cnt[11]; 1730 } 1731 1732 static u64 access_misc_invalid_eep_cmd_err_cnt(const struct cntr_entry *entry, 1733 void *context, int vl, int mode, 1734 u64 data) 1735 { 1736 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1737 1738 return dd->misc_err_status_cnt[10]; 1739 } 1740 1741 static u64 access_misc_efuse_done_parity_err_cnt(const struct cntr_entry *entry, 1742 void *context, int vl, 1743 int mode, u64 data) 1744 { 1745 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1746 1747 return dd->misc_err_status_cnt[9]; 1748 } 1749 1750 static u64 access_misc_efuse_write_err_cnt(const struct cntr_entry *entry, 1751 void *context, int vl, int mode, 1752 u64 data) 1753 { 1754 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1755 1756 return dd->misc_err_status_cnt[8]; 1757 } 1758 1759 static u64 access_misc_efuse_read_bad_addr_err_cnt( 1760 const struct cntr_entry *entry, 1761 void *context, int vl, int mode, u64 data) 1762 { 1763 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1764 1765 return dd->misc_err_status_cnt[7]; 1766 } 1767 1768 static u64 access_misc_efuse_csr_parity_err_cnt(const struct cntr_entry *entry, 1769 void *context, int vl, 1770 int mode, u64 data) 1771 { 1772 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1773 1774 return dd->misc_err_status_cnt[6]; 1775 } 1776 1777 static u64 access_misc_fw_auth_failed_err_cnt(const struct cntr_entry *entry, 1778 void *context, int vl, int mode, 1779 u64 data) 1780 { 1781 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1782 1783 return dd->misc_err_status_cnt[5]; 1784 } 1785 1786 static u64 access_misc_key_mismatch_err_cnt(const struct cntr_entry *entry, 1787 void *context, int vl, int mode, 1788 u64 data) 1789 { 1790 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1791 1792 return dd->misc_err_status_cnt[4]; 1793 } 1794 1795 static u64 access_misc_sbus_write_failed_err_cnt(const struct cntr_entry *entry, 1796 void *context, int vl, 1797 int mode, u64 data) 1798 { 1799 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1800 1801 return dd->misc_err_status_cnt[3]; 1802 } 1803 1804 static u64 access_misc_csr_write_bad_addr_err_cnt( 1805 const struct cntr_entry *entry, 1806 void *context, int vl, int mode, u64 data) 1807 { 1808 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1809 1810 return dd->misc_err_status_cnt[2]; 1811 } 1812 1813 static u64 access_misc_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 1814 void *context, int vl, 1815 int mode, u64 data) 1816 { 1817 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1818 1819 return dd->misc_err_status_cnt[1]; 1820 } 1821 1822 static u64 access_misc_csr_parity_err_cnt(const struct cntr_entry *entry, 1823 void *context, int vl, int mode, 1824 u64 data) 1825 { 1826 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1827 1828 return dd->misc_err_status_cnt[0]; 1829 } 1830 1831 /* 1832 * Software counter for the aggregate of 1833 * individual CceErrStatus counters 1834 */ 1835 static u64 access_sw_cce_err_status_aggregated_cnt( 1836 const struct cntr_entry *entry, 1837 void *context, int vl, int mode, u64 data) 1838 { 1839 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1840 1841 return dd->sw_cce_err_status_aggregate; 1842 } 1843 1844 /* 1845 * Software counters corresponding to each of the 1846 * error status bits within CceErrStatus 1847 */ 1848 static u64 access_cce_msix_csr_parity_err_cnt(const struct cntr_entry *entry, 1849 void *context, int vl, int mode, 1850 u64 data) 1851 { 1852 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1853 1854 return dd->cce_err_status_cnt[40]; 1855 } 1856 1857 static u64 access_cce_int_map_unc_err_cnt(const struct cntr_entry *entry, 1858 void *context, int vl, int mode, 1859 u64 data) 1860 { 1861 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1862 1863 return dd->cce_err_status_cnt[39]; 1864 } 1865 1866 static u64 access_cce_int_map_cor_err_cnt(const struct cntr_entry *entry, 1867 void *context, int vl, int mode, 1868 u64 data) 1869 { 1870 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1871 1872 return dd->cce_err_status_cnt[38]; 1873 } 1874 1875 static u64 access_cce_msix_table_unc_err_cnt(const struct cntr_entry *entry, 1876 void *context, int vl, int mode, 1877 u64 data) 1878 { 1879 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1880 1881 return dd->cce_err_status_cnt[37]; 1882 } 1883 1884 static u64 access_cce_msix_table_cor_err_cnt(const struct cntr_entry *entry, 1885 void *context, int vl, int mode, 1886 u64 data) 1887 { 1888 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1889 1890 return dd->cce_err_status_cnt[36]; 1891 } 1892 1893 static u64 access_cce_rxdma_conv_fifo_parity_err_cnt( 1894 const struct cntr_entry *entry, 1895 void *context, int vl, int mode, u64 data) 1896 { 1897 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1898 1899 return dd->cce_err_status_cnt[35]; 1900 } 1901 1902 static u64 access_cce_rcpl_async_fifo_parity_err_cnt( 1903 const struct cntr_entry *entry, 1904 void *context, int vl, int mode, u64 data) 1905 { 1906 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1907 1908 return dd->cce_err_status_cnt[34]; 1909 } 1910 1911 static u64 access_cce_seg_write_bad_addr_err_cnt(const struct cntr_entry *entry, 1912 void *context, int vl, 1913 int mode, u64 data) 1914 { 1915 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1916 1917 return dd->cce_err_status_cnt[33]; 1918 } 1919 1920 static u64 access_cce_seg_read_bad_addr_err_cnt(const struct cntr_entry *entry, 1921 void *context, int vl, int mode, 1922 u64 data) 1923 { 1924 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1925 1926 return dd->cce_err_status_cnt[32]; 1927 } 1928 1929 static u64 access_la_triggered_cnt(const struct cntr_entry *entry, 1930 void *context, int vl, int mode, u64 data) 1931 { 1932 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1933 1934 return dd->cce_err_status_cnt[31]; 1935 } 1936 1937 static u64 access_cce_trgt_cpl_timeout_err_cnt(const struct cntr_entry *entry, 1938 void *context, int vl, int mode, 1939 u64 data) 1940 { 1941 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1942 1943 return dd->cce_err_status_cnt[30]; 1944 } 1945 1946 static u64 access_pcic_receive_parity_err_cnt(const struct cntr_entry *entry, 1947 void *context, int vl, int mode, 1948 u64 data) 1949 { 1950 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1951 1952 return dd->cce_err_status_cnt[29]; 1953 } 1954 1955 static u64 access_pcic_transmit_back_parity_err_cnt( 1956 const struct cntr_entry *entry, 1957 void *context, int vl, int mode, u64 data) 1958 { 1959 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1960 1961 return dd->cce_err_status_cnt[28]; 1962 } 1963 1964 static u64 access_pcic_transmit_front_parity_err_cnt( 1965 const struct cntr_entry *entry, 1966 void *context, int vl, int mode, u64 data) 1967 { 1968 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1969 1970 return dd->cce_err_status_cnt[27]; 1971 } 1972 1973 static u64 access_pcic_cpl_dat_q_unc_err_cnt(const struct cntr_entry *entry, 1974 void *context, int vl, int mode, 1975 u64 data) 1976 { 1977 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1978 1979 return dd->cce_err_status_cnt[26]; 1980 } 1981 1982 static u64 access_pcic_cpl_hd_q_unc_err_cnt(const struct cntr_entry *entry, 1983 void *context, int vl, int mode, 1984 u64 data) 1985 { 1986 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1987 1988 return dd->cce_err_status_cnt[25]; 1989 } 1990 1991 static u64 access_pcic_post_dat_q_unc_err_cnt(const struct cntr_entry *entry, 1992 void *context, int vl, int mode, 1993 u64 data) 1994 { 1995 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 1996 1997 return dd->cce_err_status_cnt[24]; 1998 } 1999 2000 static u64 access_pcic_post_hd_q_unc_err_cnt(const struct cntr_entry *entry, 2001 void *context, int vl, int mode, 2002 u64 data) 2003 { 2004 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2005 2006 return dd->cce_err_status_cnt[23]; 2007 } 2008 2009 static u64 access_pcic_retry_sot_mem_unc_err_cnt(const struct cntr_entry *entry, 2010 void *context, int vl, 2011 int mode, u64 data) 2012 { 2013 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2014 2015 return dd->cce_err_status_cnt[22]; 2016 } 2017 2018 static u64 access_pcic_retry_mem_unc_err(const struct cntr_entry *entry, 2019 void *context, int vl, int mode, 2020 u64 data) 2021 { 2022 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2023 2024 return dd->cce_err_status_cnt[21]; 2025 } 2026 2027 static u64 access_pcic_n_post_dat_q_parity_err_cnt( 2028 const struct cntr_entry *entry, 2029 void *context, int vl, int mode, u64 data) 2030 { 2031 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2032 2033 return dd->cce_err_status_cnt[20]; 2034 } 2035 2036 static u64 access_pcic_n_post_h_q_parity_err_cnt(const struct cntr_entry *entry, 2037 void *context, int vl, 2038 int mode, u64 data) 2039 { 2040 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2041 2042 return dd->cce_err_status_cnt[19]; 2043 } 2044 2045 static u64 access_pcic_cpl_dat_q_cor_err_cnt(const struct cntr_entry *entry, 2046 void *context, int vl, int mode, 2047 u64 data) 2048 { 2049 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2050 2051 return dd->cce_err_status_cnt[18]; 2052 } 2053 2054 static u64 access_pcic_cpl_hd_q_cor_err_cnt(const struct cntr_entry *entry, 2055 void *context, int vl, int mode, 2056 u64 data) 2057 { 2058 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2059 2060 return dd->cce_err_status_cnt[17]; 2061 } 2062 2063 static u64 access_pcic_post_dat_q_cor_err_cnt(const struct cntr_entry *entry, 2064 void *context, int vl, int mode, 2065 u64 data) 2066 { 2067 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2068 2069 return dd->cce_err_status_cnt[16]; 2070 } 2071 2072 static u64 access_pcic_post_hd_q_cor_err_cnt(const struct cntr_entry *entry, 2073 void *context, int vl, int mode, 2074 u64 data) 2075 { 2076 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2077 2078 return dd->cce_err_status_cnt[15]; 2079 } 2080 2081 static u64 access_pcic_retry_sot_mem_cor_err_cnt(const struct cntr_entry *entry, 2082 void *context, int vl, 2083 int mode, u64 data) 2084 { 2085 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2086 2087 return dd->cce_err_status_cnt[14]; 2088 } 2089 2090 static u64 access_pcic_retry_mem_cor_err_cnt(const struct cntr_entry *entry, 2091 void *context, int vl, int mode, 2092 u64 data) 2093 { 2094 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2095 2096 return dd->cce_err_status_cnt[13]; 2097 } 2098 2099 static u64 access_cce_cli1_async_fifo_dbg_parity_err_cnt( 2100 const struct cntr_entry *entry, 2101 void *context, int vl, int mode, u64 data) 2102 { 2103 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2104 2105 return dd->cce_err_status_cnt[12]; 2106 } 2107 2108 static u64 access_cce_cli1_async_fifo_rxdma_parity_err_cnt( 2109 const struct cntr_entry *entry, 2110 void *context, int vl, int mode, u64 data) 2111 { 2112 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2113 2114 return dd->cce_err_status_cnt[11]; 2115 } 2116 2117 static u64 access_cce_cli1_async_fifo_sdma_hd_parity_err_cnt( 2118 const struct cntr_entry *entry, 2119 void *context, int vl, int mode, u64 data) 2120 { 2121 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2122 2123 return dd->cce_err_status_cnt[10]; 2124 } 2125 2126 static u64 access_cce_cl1_async_fifo_pio_crdt_parity_err_cnt( 2127 const struct cntr_entry *entry, 2128 void *context, int vl, int mode, u64 data) 2129 { 2130 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2131 2132 return dd->cce_err_status_cnt[9]; 2133 } 2134 2135 static u64 access_cce_cli2_async_fifo_parity_err_cnt( 2136 const struct cntr_entry *entry, 2137 void *context, int vl, int mode, u64 data) 2138 { 2139 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2140 2141 return dd->cce_err_status_cnt[8]; 2142 } 2143 2144 static u64 access_cce_csr_cfg_bus_parity_err_cnt(const struct cntr_entry *entry, 2145 void *context, int vl, 2146 int mode, u64 data) 2147 { 2148 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2149 2150 return dd->cce_err_status_cnt[7]; 2151 } 2152 2153 static u64 access_cce_cli0_async_fifo_parity_err_cnt( 2154 const struct cntr_entry *entry, 2155 void *context, int vl, int mode, u64 data) 2156 { 2157 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2158 2159 return dd->cce_err_status_cnt[6]; 2160 } 2161 2162 static u64 access_cce_rspd_data_parity_err_cnt(const struct cntr_entry *entry, 2163 void *context, int vl, int mode, 2164 u64 data) 2165 { 2166 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2167 2168 return dd->cce_err_status_cnt[5]; 2169 } 2170 2171 static u64 access_cce_trgt_access_err_cnt(const struct cntr_entry *entry, 2172 void *context, int vl, int mode, 2173 u64 data) 2174 { 2175 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2176 2177 return dd->cce_err_status_cnt[4]; 2178 } 2179 2180 static u64 access_cce_trgt_async_fifo_parity_err_cnt( 2181 const struct cntr_entry *entry, 2182 void *context, int vl, int mode, u64 data) 2183 { 2184 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2185 2186 return dd->cce_err_status_cnt[3]; 2187 } 2188 2189 static u64 access_cce_csr_write_bad_addr_err_cnt(const struct cntr_entry *entry, 2190 void *context, int vl, 2191 int mode, u64 data) 2192 { 2193 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2194 2195 return dd->cce_err_status_cnt[2]; 2196 } 2197 2198 static u64 access_cce_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 2199 void *context, int vl, 2200 int mode, u64 data) 2201 { 2202 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2203 2204 return dd->cce_err_status_cnt[1]; 2205 } 2206 2207 static u64 access_ccs_csr_parity_err_cnt(const struct cntr_entry *entry, 2208 void *context, int vl, int mode, 2209 u64 data) 2210 { 2211 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2212 2213 return dd->cce_err_status_cnt[0]; 2214 } 2215 2216 /* 2217 * Software counters corresponding to each of the 2218 * error status bits within RcvErrStatus 2219 */ 2220 static u64 access_rx_csr_parity_err_cnt(const struct cntr_entry *entry, 2221 void *context, int vl, int mode, 2222 u64 data) 2223 { 2224 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2225 2226 return dd->rcv_err_status_cnt[63]; 2227 } 2228 2229 static u64 access_rx_csr_write_bad_addr_err_cnt(const struct cntr_entry *entry, 2230 void *context, int vl, 2231 int mode, u64 data) 2232 { 2233 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2234 2235 return dd->rcv_err_status_cnt[62]; 2236 } 2237 2238 static u64 access_rx_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 2239 void *context, int vl, int mode, 2240 u64 data) 2241 { 2242 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2243 2244 return dd->rcv_err_status_cnt[61]; 2245 } 2246 2247 static u64 access_rx_dma_csr_unc_err_cnt(const struct cntr_entry *entry, 2248 void *context, int vl, int mode, 2249 u64 data) 2250 { 2251 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2252 2253 return dd->rcv_err_status_cnt[60]; 2254 } 2255 2256 static u64 access_rx_dma_dq_fsm_encoding_err_cnt(const struct cntr_entry *entry, 2257 void *context, int vl, 2258 int mode, u64 data) 2259 { 2260 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2261 2262 return dd->rcv_err_status_cnt[59]; 2263 } 2264 2265 static u64 access_rx_dma_eq_fsm_encoding_err_cnt(const struct cntr_entry *entry, 2266 void *context, int vl, 2267 int mode, u64 data) 2268 { 2269 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2270 2271 return dd->rcv_err_status_cnt[58]; 2272 } 2273 2274 static u64 access_rx_dma_csr_parity_err_cnt(const struct cntr_entry *entry, 2275 void *context, int vl, int mode, 2276 u64 data) 2277 { 2278 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2279 2280 return dd->rcv_err_status_cnt[57]; 2281 } 2282 2283 static u64 access_rx_rbuf_data_cor_err_cnt(const struct cntr_entry *entry, 2284 void *context, int vl, int mode, 2285 u64 data) 2286 { 2287 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2288 2289 return dd->rcv_err_status_cnt[56]; 2290 } 2291 2292 static u64 access_rx_rbuf_data_unc_err_cnt(const struct cntr_entry *entry, 2293 void *context, int vl, int mode, 2294 u64 data) 2295 { 2296 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2297 2298 return dd->rcv_err_status_cnt[55]; 2299 } 2300 2301 static u64 access_rx_dma_data_fifo_rd_cor_err_cnt( 2302 const struct cntr_entry *entry, 2303 void *context, int vl, int mode, u64 data) 2304 { 2305 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2306 2307 return dd->rcv_err_status_cnt[54]; 2308 } 2309 2310 static u64 access_rx_dma_data_fifo_rd_unc_err_cnt( 2311 const struct cntr_entry *entry, 2312 void *context, int vl, int mode, u64 data) 2313 { 2314 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2315 2316 return dd->rcv_err_status_cnt[53]; 2317 } 2318 2319 static u64 access_rx_dma_hdr_fifo_rd_cor_err_cnt(const struct cntr_entry *entry, 2320 void *context, int vl, 2321 int mode, u64 data) 2322 { 2323 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2324 2325 return dd->rcv_err_status_cnt[52]; 2326 } 2327 2328 static u64 access_rx_dma_hdr_fifo_rd_unc_err_cnt(const struct cntr_entry *entry, 2329 void *context, int vl, 2330 int mode, u64 data) 2331 { 2332 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2333 2334 return dd->rcv_err_status_cnt[51]; 2335 } 2336 2337 static u64 access_rx_rbuf_desc_part2_cor_err_cnt(const struct cntr_entry *entry, 2338 void *context, int vl, 2339 int mode, u64 data) 2340 { 2341 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2342 2343 return dd->rcv_err_status_cnt[50]; 2344 } 2345 2346 static u64 access_rx_rbuf_desc_part2_unc_err_cnt(const struct cntr_entry *entry, 2347 void *context, int vl, 2348 int mode, u64 data) 2349 { 2350 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2351 2352 return dd->rcv_err_status_cnt[49]; 2353 } 2354 2355 static u64 access_rx_rbuf_desc_part1_cor_err_cnt(const struct cntr_entry *entry, 2356 void *context, int vl, 2357 int mode, u64 data) 2358 { 2359 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2360 2361 return dd->rcv_err_status_cnt[48]; 2362 } 2363 2364 static u64 access_rx_rbuf_desc_part1_unc_err_cnt(const struct cntr_entry *entry, 2365 void *context, int vl, 2366 int mode, u64 data) 2367 { 2368 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2369 2370 return dd->rcv_err_status_cnt[47]; 2371 } 2372 2373 static u64 access_rx_hq_intr_fsm_err_cnt(const struct cntr_entry *entry, 2374 void *context, int vl, int mode, 2375 u64 data) 2376 { 2377 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2378 2379 return dd->rcv_err_status_cnt[46]; 2380 } 2381 2382 static u64 access_rx_hq_intr_csr_parity_err_cnt( 2383 const struct cntr_entry *entry, 2384 void *context, int vl, int mode, u64 data) 2385 { 2386 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2387 2388 return dd->rcv_err_status_cnt[45]; 2389 } 2390 2391 static u64 access_rx_lookup_csr_parity_err_cnt( 2392 const struct cntr_entry *entry, 2393 void *context, int vl, int mode, u64 data) 2394 { 2395 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2396 2397 return dd->rcv_err_status_cnt[44]; 2398 } 2399 2400 static u64 access_rx_lookup_rcv_array_cor_err_cnt( 2401 const struct cntr_entry *entry, 2402 void *context, int vl, int mode, u64 data) 2403 { 2404 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2405 2406 return dd->rcv_err_status_cnt[43]; 2407 } 2408 2409 static u64 access_rx_lookup_rcv_array_unc_err_cnt( 2410 const struct cntr_entry *entry, 2411 void *context, int vl, int mode, u64 data) 2412 { 2413 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2414 2415 return dd->rcv_err_status_cnt[42]; 2416 } 2417 2418 static u64 access_rx_lookup_des_part2_parity_err_cnt( 2419 const struct cntr_entry *entry, 2420 void *context, int vl, int mode, u64 data) 2421 { 2422 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2423 2424 return dd->rcv_err_status_cnt[41]; 2425 } 2426 2427 static u64 access_rx_lookup_des_part1_unc_cor_err_cnt( 2428 const struct cntr_entry *entry, 2429 void *context, int vl, int mode, u64 data) 2430 { 2431 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2432 2433 return dd->rcv_err_status_cnt[40]; 2434 } 2435 2436 static u64 access_rx_lookup_des_part1_unc_err_cnt( 2437 const struct cntr_entry *entry, 2438 void *context, int vl, int mode, u64 data) 2439 { 2440 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2441 2442 return dd->rcv_err_status_cnt[39]; 2443 } 2444 2445 static u64 access_rx_rbuf_next_free_buf_cor_err_cnt( 2446 const struct cntr_entry *entry, 2447 void *context, int vl, int mode, u64 data) 2448 { 2449 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2450 2451 return dd->rcv_err_status_cnt[38]; 2452 } 2453 2454 static u64 access_rx_rbuf_next_free_buf_unc_err_cnt( 2455 const struct cntr_entry *entry, 2456 void *context, int vl, int mode, u64 data) 2457 { 2458 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2459 2460 return dd->rcv_err_status_cnt[37]; 2461 } 2462 2463 static u64 access_rbuf_fl_init_wr_addr_parity_err_cnt( 2464 const struct cntr_entry *entry, 2465 void *context, int vl, int mode, u64 data) 2466 { 2467 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2468 2469 return dd->rcv_err_status_cnt[36]; 2470 } 2471 2472 static u64 access_rx_rbuf_fl_initdone_parity_err_cnt( 2473 const struct cntr_entry *entry, 2474 void *context, int vl, int mode, u64 data) 2475 { 2476 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2477 2478 return dd->rcv_err_status_cnt[35]; 2479 } 2480 2481 static u64 access_rx_rbuf_fl_write_addr_parity_err_cnt( 2482 const struct cntr_entry *entry, 2483 void *context, int vl, int mode, u64 data) 2484 { 2485 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2486 2487 return dd->rcv_err_status_cnt[34]; 2488 } 2489 2490 static u64 access_rx_rbuf_fl_rd_addr_parity_err_cnt( 2491 const struct cntr_entry *entry, 2492 void *context, int vl, int mode, u64 data) 2493 { 2494 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2495 2496 return dd->rcv_err_status_cnt[33]; 2497 } 2498 2499 static u64 access_rx_rbuf_empty_err_cnt(const struct cntr_entry *entry, 2500 void *context, int vl, int mode, 2501 u64 data) 2502 { 2503 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2504 2505 return dd->rcv_err_status_cnt[32]; 2506 } 2507 2508 static u64 access_rx_rbuf_full_err_cnt(const struct cntr_entry *entry, 2509 void *context, int vl, int mode, 2510 u64 data) 2511 { 2512 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2513 2514 return dd->rcv_err_status_cnt[31]; 2515 } 2516 2517 static u64 access_rbuf_bad_lookup_err_cnt(const struct cntr_entry *entry, 2518 void *context, int vl, int mode, 2519 u64 data) 2520 { 2521 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2522 2523 return dd->rcv_err_status_cnt[30]; 2524 } 2525 2526 static u64 access_rbuf_ctx_id_parity_err_cnt(const struct cntr_entry *entry, 2527 void *context, int vl, int mode, 2528 u64 data) 2529 { 2530 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2531 2532 return dd->rcv_err_status_cnt[29]; 2533 } 2534 2535 static u64 access_rbuf_csr_qeopdw_parity_err_cnt(const struct cntr_entry *entry, 2536 void *context, int vl, 2537 int mode, u64 data) 2538 { 2539 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2540 2541 return dd->rcv_err_status_cnt[28]; 2542 } 2543 2544 static u64 access_rx_rbuf_csr_q_num_of_pkt_parity_err_cnt( 2545 const struct cntr_entry *entry, 2546 void *context, int vl, int mode, u64 data) 2547 { 2548 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2549 2550 return dd->rcv_err_status_cnt[27]; 2551 } 2552 2553 static u64 access_rx_rbuf_csr_q_t1_ptr_parity_err_cnt( 2554 const struct cntr_entry *entry, 2555 void *context, int vl, int mode, u64 data) 2556 { 2557 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2558 2559 return dd->rcv_err_status_cnt[26]; 2560 } 2561 2562 static u64 access_rx_rbuf_csr_q_hd_ptr_parity_err_cnt( 2563 const struct cntr_entry *entry, 2564 void *context, int vl, int mode, u64 data) 2565 { 2566 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2567 2568 return dd->rcv_err_status_cnt[25]; 2569 } 2570 2571 static u64 access_rx_rbuf_csr_q_vld_bit_parity_err_cnt( 2572 const struct cntr_entry *entry, 2573 void *context, int vl, int mode, u64 data) 2574 { 2575 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2576 2577 return dd->rcv_err_status_cnt[24]; 2578 } 2579 2580 static u64 access_rx_rbuf_csr_q_next_buf_parity_err_cnt( 2581 const struct cntr_entry *entry, 2582 void *context, int vl, int mode, u64 data) 2583 { 2584 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2585 2586 return dd->rcv_err_status_cnt[23]; 2587 } 2588 2589 static u64 access_rx_rbuf_csr_q_ent_cnt_parity_err_cnt( 2590 const struct cntr_entry *entry, 2591 void *context, int vl, int mode, u64 data) 2592 { 2593 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2594 2595 return dd->rcv_err_status_cnt[22]; 2596 } 2597 2598 static u64 access_rx_rbuf_csr_q_head_buf_num_parity_err_cnt( 2599 const struct cntr_entry *entry, 2600 void *context, int vl, int mode, u64 data) 2601 { 2602 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2603 2604 return dd->rcv_err_status_cnt[21]; 2605 } 2606 2607 static u64 access_rx_rbuf_block_list_read_cor_err_cnt( 2608 const struct cntr_entry *entry, 2609 void *context, int vl, int mode, u64 data) 2610 { 2611 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2612 2613 return dd->rcv_err_status_cnt[20]; 2614 } 2615 2616 static u64 access_rx_rbuf_block_list_read_unc_err_cnt( 2617 const struct cntr_entry *entry, 2618 void *context, int vl, int mode, u64 data) 2619 { 2620 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2621 2622 return dd->rcv_err_status_cnt[19]; 2623 } 2624 2625 static u64 access_rx_rbuf_lookup_des_cor_err_cnt(const struct cntr_entry *entry, 2626 void *context, int vl, 2627 int mode, u64 data) 2628 { 2629 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2630 2631 return dd->rcv_err_status_cnt[18]; 2632 } 2633 2634 static u64 access_rx_rbuf_lookup_des_unc_err_cnt(const struct cntr_entry *entry, 2635 void *context, int vl, 2636 int mode, u64 data) 2637 { 2638 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2639 2640 return dd->rcv_err_status_cnt[17]; 2641 } 2642 2643 static u64 access_rx_rbuf_lookup_des_reg_unc_cor_err_cnt( 2644 const struct cntr_entry *entry, 2645 void *context, int vl, int mode, u64 data) 2646 { 2647 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2648 2649 return dd->rcv_err_status_cnt[16]; 2650 } 2651 2652 static u64 access_rx_rbuf_lookup_des_reg_unc_err_cnt( 2653 const struct cntr_entry *entry, 2654 void *context, int vl, int mode, u64 data) 2655 { 2656 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2657 2658 return dd->rcv_err_status_cnt[15]; 2659 } 2660 2661 static u64 access_rx_rbuf_free_list_cor_err_cnt(const struct cntr_entry *entry, 2662 void *context, int vl, 2663 int mode, u64 data) 2664 { 2665 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2666 2667 return dd->rcv_err_status_cnt[14]; 2668 } 2669 2670 static u64 access_rx_rbuf_free_list_unc_err_cnt(const struct cntr_entry *entry, 2671 void *context, int vl, 2672 int mode, u64 data) 2673 { 2674 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2675 2676 return dd->rcv_err_status_cnt[13]; 2677 } 2678 2679 static u64 access_rx_rcv_fsm_encoding_err_cnt(const struct cntr_entry *entry, 2680 void *context, int vl, int mode, 2681 u64 data) 2682 { 2683 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2684 2685 return dd->rcv_err_status_cnt[12]; 2686 } 2687 2688 static u64 access_rx_dma_flag_cor_err_cnt(const struct cntr_entry *entry, 2689 void *context, int vl, int mode, 2690 u64 data) 2691 { 2692 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2693 2694 return dd->rcv_err_status_cnt[11]; 2695 } 2696 2697 static u64 access_rx_dma_flag_unc_err_cnt(const struct cntr_entry *entry, 2698 void *context, int vl, int mode, 2699 u64 data) 2700 { 2701 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2702 2703 return dd->rcv_err_status_cnt[10]; 2704 } 2705 2706 static u64 access_rx_dc_sop_eop_parity_err_cnt(const struct cntr_entry *entry, 2707 void *context, int vl, int mode, 2708 u64 data) 2709 { 2710 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2711 2712 return dd->rcv_err_status_cnt[9]; 2713 } 2714 2715 static u64 access_rx_rcv_csr_parity_err_cnt(const struct cntr_entry *entry, 2716 void *context, int vl, int mode, 2717 u64 data) 2718 { 2719 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2720 2721 return dd->rcv_err_status_cnt[8]; 2722 } 2723 2724 static u64 access_rx_rcv_qp_map_table_cor_err_cnt( 2725 const struct cntr_entry *entry, 2726 void *context, int vl, int mode, u64 data) 2727 { 2728 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2729 2730 return dd->rcv_err_status_cnt[7]; 2731 } 2732 2733 static u64 access_rx_rcv_qp_map_table_unc_err_cnt( 2734 const struct cntr_entry *entry, 2735 void *context, int vl, int mode, u64 data) 2736 { 2737 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2738 2739 return dd->rcv_err_status_cnt[6]; 2740 } 2741 2742 static u64 access_rx_rcv_data_cor_err_cnt(const struct cntr_entry *entry, 2743 void *context, int vl, int mode, 2744 u64 data) 2745 { 2746 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2747 2748 return dd->rcv_err_status_cnt[5]; 2749 } 2750 2751 static u64 access_rx_rcv_data_unc_err_cnt(const struct cntr_entry *entry, 2752 void *context, int vl, int mode, 2753 u64 data) 2754 { 2755 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2756 2757 return dd->rcv_err_status_cnt[4]; 2758 } 2759 2760 static u64 access_rx_rcv_hdr_cor_err_cnt(const struct cntr_entry *entry, 2761 void *context, int vl, int mode, 2762 u64 data) 2763 { 2764 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2765 2766 return dd->rcv_err_status_cnt[3]; 2767 } 2768 2769 static u64 access_rx_rcv_hdr_unc_err_cnt(const struct cntr_entry *entry, 2770 void *context, int vl, int mode, 2771 u64 data) 2772 { 2773 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2774 2775 return dd->rcv_err_status_cnt[2]; 2776 } 2777 2778 static u64 access_rx_dc_intf_parity_err_cnt(const struct cntr_entry *entry, 2779 void *context, int vl, int mode, 2780 u64 data) 2781 { 2782 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2783 2784 return dd->rcv_err_status_cnt[1]; 2785 } 2786 2787 static u64 access_rx_dma_csr_cor_err_cnt(const struct cntr_entry *entry, 2788 void *context, int vl, int mode, 2789 u64 data) 2790 { 2791 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2792 2793 return dd->rcv_err_status_cnt[0]; 2794 } 2795 2796 /* 2797 * Software counters corresponding to each of the 2798 * error status bits within SendPioErrStatus 2799 */ 2800 static u64 access_pio_pec_sop_head_parity_err_cnt( 2801 const struct cntr_entry *entry, 2802 void *context, int vl, int mode, u64 data) 2803 { 2804 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2805 2806 return dd->send_pio_err_status_cnt[35]; 2807 } 2808 2809 static u64 access_pio_pcc_sop_head_parity_err_cnt( 2810 const struct cntr_entry *entry, 2811 void *context, int vl, int mode, u64 data) 2812 { 2813 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2814 2815 return dd->send_pio_err_status_cnt[34]; 2816 } 2817 2818 static u64 access_pio_last_returned_cnt_parity_err_cnt( 2819 const struct cntr_entry *entry, 2820 void *context, int vl, int mode, u64 data) 2821 { 2822 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2823 2824 return dd->send_pio_err_status_cnt[33]; 2825 } 2826 2827 static u64 access_pio_current_free_cnt_parity_err_cnt( 2828 const struct cntr_entry *entry, 2829 void *context, int vl, int mode, u64 data) 2830 { 2831 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2832 2833 return dd->send_pio_err_status_cnt[32]; 2834 } 2835 2836 static u64 access_pio_reserved_31_err_cnt(const struct cntr_entry *entry, 2837 void *context, int vl, int mode, 2838 u64 data) 2839 { 2840 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2841 2842 return dd->send_pio_err_status_cnt[31]; 2843 } 2844 2845 static u64 access_pio_reserved_30_err_cnt(const struct cntr_entry *entry, 2846 void *context, int vl, int mode, 2847 u64 data) 2848 { 2849 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2850 2851 return dd->send_pio_err_status_cnt[30]; 2852 } 2853 2854 static u64 access_pio_ppmc_sop_len_err_cnt(const struct cntr_entry *entry, 2855 void *context, int vl, int mode, 2856 u64 data) 2857 { 2858 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2859 2860 return dd->send_pio_err_status_cnt[29]; 2861 } 2862 2863 static u64 access_pio_ppmc_bqc_mem_parity_err_cnt( 2864 const struct cntr_entry *entry, 2865 void *context, int vl, int mode, u64 data) 2866 { 2867 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2868 2869 return dd->send_pio_err_status_cnt[28]; 2870 } 2871 2872 static u64 access_pio_vl_fifo_parity_err_cnt(const struct cntr_entry *entry, 2873 void *context, int vl, int mode, 2874 u64 data) 2875 { 2876 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2877 2878 return dd->send_pio_err_status_cnt[27]; 2879 } 2880 2881 static u64 access_pio_vlf_sop_parity_err_cnt(const struct cntr_entry *entry, 2882 void *context, int vl, int mode, 2883 u64 data) 2884 { 2885 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2886 2887 return dd->send_pio_err_status_cnt[26]; 2888 } 2889 2890 static u64 access_pio_vlf_v1_len_parity_err_cnt(const struct cntr_entry *entry, 2891 void *context, int vl, 2892 int mode, u64 data) 2893 { 2894 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2895 2896 return dd->send_pio_err_status_cnt[25]; 2897 } 2898 2899 static u64 access_pio_block_qw_count_parity_err_cnt( 2900 const struct cntr_entry *entry, 2901 void *context, int vl, int mode, u64 data) 2902 { 2903 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2904 2905 return dd->send_pio_err_status_cnt[24]; 2906 } 2907 2908 static u64 access_pio_write_qw_valid_parity_err_cnt( 2909 const struct cntr_entry *entry, 2910 void *context, int vl, int mode, u64 data) 2911 { 2912 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2913 2914 return dd->send_pio_err_status_cnt[23]; 2915 } 2916 2917 static u64 access_pio_state_machine_err_cnt(const struct cntr_entry *entry, 2918 void *context, int vl, int mode, 2919 u64 data) 2920 { 2921 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2922 2923 return dd->send_pio_err_status_cnt[22]; 2924 } 2925 2926 static u64 access_pio_write_data_parity_err_cnt(const struct cntr_entry *entry, 2927 void *context, int vl, 2928 int mode, u64 data) 2929 { 2930 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2931 2932 return dd->send_pio_err_status_cnt[21]; 2933 } 2934 2935 static u64 access_pio_host_addr_mem_cor_err_cnt(const struct cntr_entry *entry, 2936 void *context, int vl, 2937 int mode, u64 data) 2938 { 2939 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2940 2941 return dd->send_pio_err_status_cnt[20]; 2942 } 2943 2944 static u64 access_pio_host_addr_mem_unc_err_cnt(const struct cntr_entry *entry, 2945 void *context, int vl, 2946 int mode, u64 data) 2947 { 2948 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2949 2950 return dd->send_pio_err_status_cnt[19]; 2951 } 2952 2953 static u64 access_pio_pkt_evict_sm_or_arb_sm_err_cnt( 2954 const struct cntr_entry *entry, 2955 void *context, int vl, int mode, u64 data) 2956 { 2957 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2958 2959 return dd->send_pio_err_status_cnt[18]; 2960 } 2961 2962 static u64 access_pio_init_sm_in_err_cnt(const struct cntr_entry *entry, 2963 void *context, int vl, int mode, 2964 u64 data) 2965 { 2966 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2967 2968 return dd->send_pio_err_status_cnt[17]; 2969 } 2970 2971 static u64 access_pio_ppmc_pbl_fifo_err_cnt(const struct cntr_entry *entry, 2972 void *context, int vl, int mode, 2973 u64 data) 2974 { 2975 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2976 2977 return dd->send_pio_err_status_cnt[16]; 2978 } 2979 2980 static u64 access_pio_credit_ret_fifo_parity_err_cnt( 2981 const struct cntr_entry *entry, 2982 void *context, int vl, int mode, u64 data) 2983 { 2984 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2985 2986 return dd->send_pio_err_status_cnt[15]; 2987 } 2988 2989 static u64 access_pio_v1_len_mem_bank1_cor_err_cnt( 2990 const struct cntr_entry *entry, 2991 void *context, int vl, int mode, u64 data) 2992 { 2993 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 2994 2995 return dd->send_pio_err_status_cnt[14]; 2996 } 2997 2998 static u64 access_pio_v1_len_mem_bank0_cor_err_cnt( 2999 const struct cntr_entry *entry, 3000 void *context, int vl, int mode, u64 data) 3001 { 3002 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3003 3004 return dd->send_pio_err_status_cnt[13]; 3005 } 3006 3007 static u64 access_pio_v1_len_mem_bank1_unc_err_cnt( 3008 const struct cntr_entry *entry, 3009 void *context, int vl, int mode, u64 data) 3010 { 3011 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3012 3013 return dd->send_pio_err_status_cnt[12]; 3014 } 3015 3016 static u64 access_pio_v1_len_mem_bank0_unc_err_cnt( 3017 const struct cntr_entry *entry, 3018 void *context, int vl, int mode, u64 data) 3019 { 3020 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3021 3022 return dd->send_pio_err_status_cnt[11]; 3023 } 3024 3025 static u64 access_pio_sm_pkt_reset_parity_err_cnt( 3026 const struct cntr_entry *entry, 3027 void *context, int vl, int mode, u64 data) 3028 { 3029 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3030 3031 return dd->send_pio_err_status_cnt[10]; 3032 } 3033 3034 static u64 access_pio_pkt_evict_fifo_parity_err_cnt( 3035 const struct cntr_entry *entry, 3036 void *context, int vl, int mode, u64 data) 3037 { 3038 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3039 3040 return dd->send_pio_err_status_cnt[9]; 3041 } 3042 3043 static u64 access_pio_sbrdctrl_crrel_fifo_parity_err_cnt( 3044 const struct cntr_entry *entry, 3045 void *context, int vl, int mode, u64 data) 3046 { 3047 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3048 3049 return dd->send_pio_err_status_cnt[8]; 3050 } 3051 3052 static u64 access_pio_sbrdctl_crrel_parity_err_cnt( 3053 const struct cntr_entry *entry, 3054 void *context, int vl, int mode, u64 data) 3055 { 3056 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3057 3058 return dd->send_pio_err_status_cnt[7]; 3059 } 3060 3061 static u64 access_pio_pec_fifo_parity_err_cnt(const struct cntr_entry *entry, 3062 void *context, int vl, int mode, 3063 u64 data) 3064 { 3065 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3066 3067 return dd->send_pio_err_status_cnt[6]; 3068 } 3069 3070 static u64 access_pio_pcc_fifo_parity_err_cnt(const struct cntr_entry *entry, 3071 void *context, int vl, int mode, 3072 u64 data) 3073 { 3074 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3075 3076 return dd->send_pio_err_status_cnt[5]; 3077 } 3078 3079 static u64 access_pio_sb_mem_fifo1_err_cnt(const struct cntr_entry *entry, 3080 void *context, int vl, int mode, 3081 u64 data) 3082 { 3083 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3084 3085 return dd->send_pio_err_status_cnt[4]; 3086 } 3087 3088 static u64 access_pio_sb_mem_fifo0_err_cnt(const struct cntr_entry *entry, 3089 void *context, int vl, int mode, 3090 u64 data) 3091 { 3092 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3093 3094 return dd->send_pio_err_status_cnt[3]; 3095 } 3096 3097 static u64 access_pio_csr_parity_err_cnt(const struct cntr_entry *entry, 3098 void *context, int vl, int mode, 3099 u64 data) 3100 { 3101 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3102 3103 return dd->send_pio_err_status_cnt[2]; 3104 } 3105 3106 static u64 access_pio_write_addr_parity_err_cnt(const struct cntr_entry *entry, 3107 void *context, int vl, 3108 int mode, u64 data) 3109 { 3110 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3111 3112 return dd->send_pio_err_status_cnt[1]; 3113 } 3114 3115 static u64 access_pio_write_bad_ctxt_err_cnt(const struct cntr_entry *entry, 3116 void *context, int vl, int mode, 3117 u64 data) 3118 { 3119 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3120 3121 return dd->send_pio_err_status_cnt[0]; 3122 } 3123 3124 /* 3125 * Software counters corresponding to each of the 3126 * error status bits within SendDmaErrStatus 3127 */ 3128 static u64 access_sdma_pcie_req_tracking_cor_err_cnt( 3129 const struct cntr_entry *entry, 3130 void *context, int vl, int mode, u64 data) 3131 { 3132 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3133 3134 return dd->send_dma_err_status_cnt[3]; 3135 } 3136 3137 static u64 access_sdma_pcie_req_tracking_unc_err_cnt( 3138 const struct cntr_entry *entry, 3139 void *context, int vl, int mode, u64 data) 3140 { 3141 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3142 3143 return dd->send_dma_err_status_cnt[2]; 3144 } 3145 3146 static u64 access_sdma_csr_parity_err_cnt(const struct cntr_entry *entry, 3147 void *context, int vl, int mode, 3148 u64 data) 3149 { 3150 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3151 3152 return dd->send_dma_err_status_cnt[1]; 3153 } 3154 3155 static u64 access_sdma_rpy_tag_err_cnt(const struct cntr_entry *entry, 3156 void *context, int vl, int mode, 3157 u64 data) 3158 { 3159 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3160 3161 return dd->send_dma_err_status_cnt[0]; 3162 } 3163 3164 /* 3165 * Software counters corresponding to each of the 3166 * error status bits within SendEgressErrStatus 3167 */ 3168 static u64 access_tx_read_pio_memory_csr_unc_err_cnt( 3169 const struct cntr_entry *entry, 3170 void *context, int vl, int mode, u64 data) 3171 { 3172 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3173 3174 return dd->send_egress_err_status_cnt[63]; 3175 } 3176 3177 static u64 access_tx_read_sdma_memory_csr_err_cnt( 3178 const struct cntr_entry *entry, 3179 void *context, int vl, int mode, u64 data) 3180 { 3181 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3182 3183 return dd->send_egress_err_status_cnt[62]; 3184 } 3185 3186 static u64 access_tx_egress_fifo_cor_err_cnt(const struct cntr_entry *entry, 3187 void *context, int vl, int mode, 3188 u64 data) 3189 { 3190 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3191 3192 return dd->send_egress_err_status_cnt[61]; 3193 } 3194 3195 static u64 access_tx_read_pio_memory_cor_err_cnt(const struct cntr_entry *entry, 3196 void *context, int vl, 3197 int mode, u64 data) 3198 { 3199 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3200 3201 return dd->send_egress_err_status_cnt[60]; 3202 } 3203 3204 static u64 access_tx_read_sdma_memory_cor_err_cnt( 3205 const struct cntr_entry *entry, 3206 void *context, int vl, int mode, u64 data) 3207 { 3208 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3209 3210 return dd->send_egress_err_status_cnt[59]; 3211 } 3212 3213 static u64 access_tx_sb_hdr_cor_err_cnt(const struct cntr_entry *entry, 3214 void *context, int vl, int mode, 3215 u64 data) 3216 { 3217 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3218 3219 return dd->send_egress_err_status_cnt[58]; 3220 } 3221 3222 static u64 access_tx_credit_overrun_err_cnt(const struct cntr_entry *entry, 3223 void *context, int vl, int mode, 3224 u64 data) 3225 { 3226 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3227 3228 return dd->send_egress_err_status_cnt[57]; 3229 } 3230 3231 static u64 access_tx_launch_fifo8_cor_err_cnt(const struct cntr_entry *entry, 3232 void *context, int vl, int mode, 3233 u64 data) 3234 { 3235 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3236 3237 return dd->send_egress_err_status_cnt[56]; 3238 } 3239 3240 static u64 access_tx_launch_fifo7_cor_err_cnt(const struct cntr_entry *entry, 3241 void *context, int vl, int mode, 3242 u64 data) 3243 { 3244 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3245 3246 return dd->send_egress_err_status_cnt[55]; 3247 } 3248 3249 static u64 access_tx_launch_fifo6_cor_err_cnt(const struct cntr_entry *entry, 3250 void *context, int vl, int mode, 3251 u64 data) 3252 { 3253 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3254 3255 return dd->send_egress_err_status_cnt[54]; 3256 } 3257 3258 static u64 access_tx_launch_fifo5_cor_err_cnt(const struct cntr_entry *entry, 3259 void *context, int vl, int mode, 3260 u64 data) 3261 { 3262 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3263 3264 return dd->send_egress_err_status_cnt[53]; 3265 } 3266 3267 static u64 access_tx_launch_fifo4_cor_err_cnt(const struct cntr_entry *entry, 3268 void *context, int vl, int mode, 3269 u64 data) 3270 { 3271 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3272 3273 return dd->send_egress_err_status_cnt[52]; 3274 } 3275 3276 static u64 access_tx_launch_fifo3_cor_err_cnt(const struct cntr_entry *entry, 3277 void *context, int vl, int mode, 3278 u64 data) 3279 { 3280 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3281 3282 return dd->send_egress_err_status_cnt[51]; 3283 } 3284 3285 static u64 access_tx_launch_fifo2_cor_err_cnt(const struct cntr_entry *entry, 3286 void *context, int vl, int mode, 3287 u64 data) 3288 { 3289 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3290 3291 return dd->send_egress_err_status_cnt[50]; 3292 } 3293 3294 static u64 access_tx_launch_fifo1_cor_err_cnt(const struct cntr_entry *entry, 3295 void *context, int vl, int mode, 3296 u64 data) 3297 { 3298 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3299 3300 return dd->send_egress_err_status_cnt[49]; 3301 } 3302 3303 static u64 access_tx_launch_fifo0_cor_err_cnt(const struct cntr_entry *entry, 3304 void *context, int vl, int mode, 3305 u64 data) 3306 { 3307 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3308 3309 return dd->send_egress_err_status_cnt[48]; 3310 } 3311 3312 static u64 access_tx_credit_return_vl_err_cnt(const struct cntr_entry *entry, 3313 void *context, int vl, int mode, 3314 u64 data) 3315 { 3316 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3317 3318 return dd->send_egress_err_status_cnt[47]; 3319 } 3320 3321 static u64 access_tx_hcrc_insertion_err_cnt(const struct cntr_entry *entry, 3322 void *context, int vl, int mode, 3323 u64 data) 3324 { 3325 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3326 3327 return dd->send_egress_err_status_cnt[46]; 3328 } 3329 3330 static u64 access_tx_egress_fifo_unc_err_cnt(const struct cntr_entry *entry, 3331 void *context, int vl, int mode, 3332 u64 data) 3333 { 3334 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3335 3336 return dd->send_egress_err_status_cnt[45]; 3337 } 3338 3339 static u64 access_tx_read_pio_memory_unc_err_cnt(const struct cntr_entry *entry, 3340 void *context, int vl, 3341 int mode, u64 data) 3342 { 3343 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3344 3345 return dd->send_egress_err_status_cnt[44]; 3346 } 3347 3348 static u64 access_tx_read_sdma_memory_unc_err_cnt( 3349 const struct cntr_entry *entry, 3350 void *context, int vl, int mode, u64 data) 3351 { 3352 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3353 3354 return dd->send_egress_err_status_cnt[43]; 3355 } 3356 3357 static u64 access_tx_sb_hdr_unc_err_cnt(const struct cntr_entry *entry, 3358 void *context, int vl, int mode, 3359 u64 data) 3360 { 3361 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3362 3363 return dd->send_egress_err_status_cnt[42]; 3364 } 3365 3366 static u64 access_tx_credit_return_partiy_err_cnt( 3367 const struct cntr_entry *entry, 3368 void *context, int vl, int mode, u64 data) 3369 { 3370 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3371 3372 return dd->send_egress_err_status_cnt[41]; 3373 } 3374 3375 static u64 access_tx_launch_fifo8_unc_or_parity_err_cnt( 3376 const struct cntr_entry *entry, 3377 void *context, int vl, int mode, u64 data) 3378 { 3379 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3380 3381 return dd->send_egress_err_status_cnt[40]; 3382 } 3383 3384 static u64 access_tx_launch_fifo7_unc_or_parity_err_cnt( 3385 const struct cntr_entry *entry, 3386 void *context, int vl, int mode, u64 data) 3387 { 3388 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3389 3390 return dd->send_egress_err_status_cnt[39]; 3391 } 3392 3393 static u64 access_tx_launch_fifo6_unc_or_parity_err_cnt( 3394 const struct cntr_entry *entry, 3395 void *context, int vl, int mode, u64 data) 3396 { 3397 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3398 3399 return dd->send_egress_err_status_cnt[38]; 3400 } 3401 3402 static u64 access_tx_launch_fifo5_unc_or_parity_err_cnt( 3403 const struct cntr_entry *entry, 3404 void *context, int vl, int mode, u64 data) 3405 { 3406 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3407 3408 return dd->send_egress_err_status_cnt[37]; 3409 } 3410 3411 static u64 access_tx_launch_fifo4_unc_or_parity_err_cnt( 3412 const struct cntr_entry *entry, 3413 void *context, int vl, int mode, u64 data) 3414 { 3415 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3416 3417 return dd->send_egress_err_status_cnt[36]; 3418 } 3419 3420 static u64 access_tx_launch_fifo3_unc_or_parity_err_cnt( 3421 const struct cntr_entry *entry, 3422 void *context, int vl, int mode, u64 data) 3423 { 3424 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3425 3426 return dd->send_egress_err_status_cnt[35]; 3427 } 3428 3429 static u64 access_tx_launch_fifo2_unc_or_parity_err_cnt( 3430 const struct cntr_entry *entry, 3431 void *context, int vl, int mode, u64 data) 3432 { 3433 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3434 3435 return dd->send_egress_err_status_cnt[34]; 3436 } 3437 3438 static u64 access_tx_launch_fifo1_unc_or_parity_err_cnt( 3439 const struct cntr_entry *entry, 3440 void *context, int vl, int mode, u64 data) 3441 { 3442 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3443 3444 return dd->send_egress_err_status_cnt[33]; 3445 } 3446 3447 static u64 access_tx_launch_fifo0_unc_or_parity_err_cnt( 3448 const struct cntr_entry *entry, 3449 void *context, int vl, int mode, u64 data) 3450 { 3451 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3452 3453 return dd->send_egress_err_status_cnt[32]; 3454 } 3455 3456 static u64 access_tx_sdma15_disallowed_packet_err_cnt( 3457 const struct cntr_entry *entry, 3458 void *context, int vl, int mode, u64 data) 3459 { 3460 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3461 3462 return dd->send_egress_err_status_cnt[31]; 3463 } 3464 3465 static u64 access_tx_sdma14_disallowed_packet_err_cnt( 3466 const struct cntr_entry *entry, 3467 void *context, int vl, int mode, u64 data) 3468 { 3469 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3470 3471 return dd->send_egress_err_status_cnt[30]; 3472 } 3473 3474 static u64 access_tx_sdma13_disallowed_packet_err_cnt( 3475 const struct cntr_entry *entry, 3476 void *context, int vl, int mode, u64 data) 3477 { 3478 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3479 3480 return dd->send_egress_err_status_cnt[29]; 3481 } 3482 3483 static u64 access_tx_sdma12_disallowed_packet_err_cnt( 3484 const struct cntr_entry *entry, 3485 void *context, int vl, int mode, u64 data) 3486 { 3487 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3488 3489 return dd->send_egress_err_status_cnt[28]; 3490 } 3491 3492 static u64 access_tx_sdma11_disallowed_packet_err_cnt( 3493 const struct cntr_entry *entry, 3494 void *context, int vl, int mode, u64 data) 3495 { 3496 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3497 3498 return dd->send_egress_err_status_cnt[27]; 3499 } 3500 3501 static u64 access_tx_sdma10_disallowed_packet_err_cnt( 3502 const struct cntr_entry *entry, 3503 void *context, int vl, int mode, u64 data) 3504 { 3505 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3506 3507 return dd->send_egress_err_status_cnt[26]; 3508 } 3509 3510 static u64 access_tx_sdma9_disallowed_packet_err_cnt( 3511 const struct cntr_entry *entry, 3512 void *context, int vl, int mode, u64 data) 3513 { 3514 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3515 3516 return dd->send_egress_err_status_cnt[25]; 3517 } 3518 3519 static u64 access_tx_sdma8_disallowed_packet_err_cnt( 3520 const struct cntr_entry *entry, 3521 void *context, int vl, int mode, u64 data) 3522 { 3523 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3524 3525 return dd->send_egress_err_status_cnt[24]; 3526 } 3527 3528 static u64 access_tx_sdma7_disallowed_packet_err_cnt( 3529 const struct cntr_entry *entry, 3530 void *context, int vl, int mode, u64 data) 3531 { 3532 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3533 3534 return dd->send_egress_err_status_cnt[23]; 3535 } 3536 3537 static u64 access_tx_sdma6_disallowed_packet_err_cnt( 3538 const struct cntr_entry *entry, 3539 void *context, int vl, int mode, u64 data) 3540 { 3541 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3542 3543 return dd->send_egress_err_status_cnt[22]; 3544 } 3545 3546 static u64 access_tx_sdma5_disallowed_packet_err_cnt( 3547 const struct cntr_entry *entry, 3548 void *context, int vl, int mode, u64 data) 3549 { 3550 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3551 3552 return dd->send_egress_err_status_cnt[21]; 3553 } 3554 3555 static u64 access_tx_sdma4_disallowed_packet_err_cnt( 3556 const struct cntr_entry *entry, 3557 void *context, int vl, int mode, u64 data) 3558 { 3559 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3560 3561 return dd->send_egress_err_status_cnt[20]; 3562 } 3563 3564 static u64 access_tx_sdma3_disallowed_packet_err_cnt( 3565 const struct cntr_entry *entry, 3566 void *context, int vl, int mode, u64 data) 3567 { 3568 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3569 3570 return dd->send_egress_err_status_cnt[19]; 3571 } 3572 3573 static u64 access_tx_sdma2_disallowed_packet_err_cnt( 3574 const struct cntr_entry *entry, 3575 void *context, int vl, int mode, u64 data) 3576 { 3577 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3578 3579 return dd->send_egress_err_status_cnt[18]; 3580 } 3581 3582 static u64 access_tx_sdma1_disallowed_packet_err_cnt( 3583 const struct cntr_entry *entry, 3584 void *context, int vl, int mode, u64 data) 3585 { 3586 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3587 3588 return dd->send_egress_err_status_cnt[17]; 3589 } 3590 3591 static u64 access_tx_sdma0_disallowed_packet_err_cnt( 3592 const struct cntr_entry *entry, 3593 void *context, int vl, int mode, u64 data) 3594 { 3595 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3596 3597 return dd->send_egress_err_status_cnt[16]; 3598 } 3599 3600 static u64 access_tx_config_parity_err_cnt(const struct cntr_entry *entry, 3601 void *context, int vl, int mode, 3602 u64 data) 3603 { 3604 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3605 3606 return dd->send_egress_err_status_cnt[15]; 3607 } 3608 3609 static u64 access_tx_sbrd_ctl_csr_parity_err_cnt(const struct cntr_entry *entry, 3610 void *context, int vl, 3611 int mode, u64 data) 3612 { 3613 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3614 3615 return dd->send_egress_err_status_cnt[14]; 3616 } 3617 3618 static u64 access_tx_launch_csr_parity_err_cnt(const struct cntr_entry *entry, 3619 void *context, int vl, int mode, 3620 u64 data) 3621 { 3622 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3623 3624 return dd->send_egress_err_status_cnt[13]; 3625 } 3626 3627 static u64 access_tx_illegal_vl_err_cnt(const struct cntr_entry *entry, 3628 void *context, int vl, int mode, 3629 u64 data) 3630 { 3631 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3632 3633 return dd->send_egress_err_status_cnt[12]; 3634 } 3635 3636 static u64 access_tx_sbrd_ctl_state_machine_parity_err_cnt( 3637 const struct cntr_entry *entry, 3638 void *context, int vl, int mode, u64 data) 3639 { 3640 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3641 3642 return dd->send_egress_err_status_cnt[11]; 3643 } 3644 3645 static u64 access_egress_reserved_10_err_cnt(const struct cntr_entry *entry, 3646 void *context, int vl, int mode, 3647 u64 data) 3648 { 3649 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3650 3651 return dd->send_egress_err_status_cnt[10]; 3652 } 3653 3654 static u64 access_egress_reserved_9_err_cnt(const struct cntr_entry *entry, 3655 void *context, int vl, int mode, 3656 u64 data) 3657 { 3658 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3659 3660 return dd->send_egress_err_status_cnt[9]; 3661 } 3662 3663 static u64 access_tx_sdma_launch_intf_parity_err_cnt( 3664 const struct cntr_entry *entry, 3665 void *context, int vl, int mode, u64 data) 3666 { 3667 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3668 3669 return dd->send_egress_err_status_cnt[8]; 3670 } 3671 3672 static u64 access_tx_pio_launch_intf_parity_err_cnt( 3673 const struct cntr_entry *entry, 3674 void *context, int vl, int mode, u64 data) 3675 { 3676 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3677 3678 return dd->send_egress_err_status_cnt[7]; 3679 } 3680 3681 static u64 access_egress_reserved_6_err_cnt(const struct cntr_entry *entry, 3682 void *context, int vl, int mode, 3683 u64 data) 3684 { 3685 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3686 3687 return dd->send_egress_err_status_cnt[6]; 3688 } 3689 3690 static u64 access_tx_incorrect_link_state_err_cnt( 3691 const struct cntr_entry *entry, 3692 void *context, int vl, int mode, u64 data) 3693 { 3694 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3695 3696 return dd->send_egress_err_status_cnt[5]; 3697 } 3698 3699 static u64 access_tx_linkdown_err_cnt(const struct cntr_entry *entry, 3700 void *context, int vl, int mode, 3701 u64 data) 3702 { 3703 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3704 3705 return dd->send_egress_err_status_cnt[4]; 3706 } 3707 3708 static u64 access_tx_egress_fifi_underrun_or_parity_err_cnt( 3709 const struct cntr_entry *entry, 3710 void *context, int vl, int mode, u64 data) 3711 { 3712 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3713 3714 return dd->send_egress_err_status_cnt[3]; 3715 } 3716 3717 static u64 access_egress_reserved_2_err_cnt(const struct cntr_entry *entry, 3718 void *context, int vl, int mode, 3719 u64 data) 3720 { 3721 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3722 3723 return dd->send_egress_err_status_cnt[2]; 3724 } 3725 3726 static u64 access_tx_pkt_integrity_mem_unc_err_cnt( 3727 const struct cntr_entry *entry, 3728 void *context, int vl, int mode, u64 data) 3729 { 3730 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3731 3732 return dd->send_egress_err_status_cnt[1]; 3733 } 3734 3735 static u64 access_tx_pkt_integrity_mem_cor_err_cnt( 3736 const struct cntr_entry *entry, 3737 void *context, int vl, int mode, u64 data) 3738 { 3739 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3740 3741 return dd->send_egress_err_status_cnt[0]; 3742 } 3743 3744 /* 3745 * Software counters corresponding to each of the 3746 * error status bits within SendErrStatus 3747 */ 3748 static u64 access_send_csr_write_bad_addr_err_cnt( 3749 const struct cntr_entry *entry, 3750 void *context, int vl, int mode, u64 data) 3751 { 3752 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3753 3754 return dd->send_err_status_cnt[2]; 3755 } 3756 3757 static u64 access_send_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry, 3758 void *context, int vl, 3759 int mode, u64 data) 3760 { 3761 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3762 3763 return dd->send_err_status_cnt[1]; 3764 } 3765 3766 static u64 access_send_csr_parity_cnt(const struct cntr_entry *entry, 3767 void *context, int vl, int mode, 3768 u64 data) 3769 { 3770 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3771 3772 return dd->send_err_status_cnt[0]; 3773 } 3774 3775 /* 3776 * Software counters corresponding to each of the 3777 * error status bits within SendCtxtErrStatus 3778 */ 3779 static u64 access_pio_write_out_of_bounds_err_cnt( 3780 const struct cntr_entry *entry, 3781 void *context, int vl, int mode, u64 data) 3782 { 3783 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3784 3785 return dd->sw_ctxt_err_status_cnt[4]; 3786 } 3787 3788 static u64 access_pio_write_overflow_err_cnt(const struct cntr_entry *entry, 3789 void *context, int vl, int mode, 3790 u64 data) 3791 { 3792 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3793 3794 return dd->sw_ctxt_err_status_cnt[3]; 3795 } 3796 3797 static u64 access_pio_write_crosses_boundary_err_cnt( 3798 const struct cntr_entry *entry, 3799 void *context, int vl, int mode, u64 data) 3800 { 3801 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3802 3803 return dd->sw_ctxt_err_status_cnt[2]; 3804 } 3805 3806 static u64 access_pio_disallowed_packet_err_cnt(const struct cntr_entry *entry, 3807 void *context, int vl, 3808 int mode, u64 data) 3809 { 3810 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3811 3812 return dd->sw_ctxt_err_status_cnt[1]; 3813 } 3814 3815 static u64 access_pio_inconsistent_sop_err_cnt(const struct cntr_entry *entry, 3816 void *context, int vl, int mode, 3817 u64 data) 3818 { 3819 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3820 3821 return dd->sw_ctxt_err_status_cnt[0]; 3822 } 3823 3824 /* 3825 * Software counters corresponding to each of the 3826 * error status bits within SendDmaEngErrStatus 3827 */ 3828 static u64 access_sdma_header_request_fifo_cor_err_cnt( 3829 const struct cntr_entry *entry, 3830 void *context, int vl, int mode, u64 data) 3831 { 3832 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3833 3834 return dd->sw_send_dma_eng_err_status_cnt[23]; 3835 } 3836 3837 static u64 access_sdma_header_storage_cor_err_cnt( 3838 const struct cntr_entry *entry, 3839 void *context, int vl, int mode, u64 data) 3840 { 3841 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3842 3843 return dd->sw_send_dma_eng_err_status_cnt[22]; 3844 } 3845 3846 static u64 access_sdma_packet_tracking_cor_err_cnt( 3847 const struct cntr_entry *entry, 3848 void *context, int vl, int mode, u64 data) 3849 { 3850 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3851 3852 return dd->sw_send_dma_eng_err_status_cnt[21]; 3853 } 3854 3855 static u64 access_sdma_assembly_cor_err_cnt(const struct cntr_entry *entry, 3856 void *context, int vl, int mode, 3857 u64 data) 3858 { 3859 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3860 3861 return dd->sw_send_dma_eng_err_status_cnt[20]; 3862 } 3863 3864 static u64 access_sdma_desc_table_cor_err_cnt(const struct cntr_entry *entry, 3865 void *context, int vl, int mode, 3866 u64 data) 3867 { 3868 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3869 3870 return dd->sw_send_dma_eng_err_status_cnt[19]; 3871 } 3872 3873 static u64 access_sdma_header_request_fifo_unc_err_cnt( 3874 const struct cntr_entry *entry, 3875 void *context, int vl, int mode, u64 data) 3876 { 3877 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3878 3879 return dd->sw_send_dma_eng_err_status_cnt[18]; 3880 } 3881 3882 static u64 access_sdma_header_storage_unc_err_cnt( 3883 const struct cntr_entry *entry, 3884 void *context, int vl, int mode, u64 data) 3885 { 3886 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3887 3888 return dd->sw_send_dma_eng_err_status_cnt[17]; 3889 } 3890 3891 static u64 access_sdma_packet_tracking_unc_err_cnt( 3892 const struct cntr_entry *entry, 3893 void *context, int vl, int mode, u64 data) 3894 { 3895 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3896 3897 return dd->sw_send_dma_eng_err_status_cnt[16]; 3898 } 3899 3900 static u64 access_sdma_assembly_unc_err_cnt(const struct cntr_entry *entry, 3901 void *context, int vl, int mode, 3902 u64 data) 3903 { 3904 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3905 3906 return dd->sw_send_dma_eng_err_status_cnt[15]; 3907 } 3908 3909 static u64 access_sdma_desc_table_unc_err_cnt(const struct cntr_entry *entry, 3910 void *context, int vl, int mode, 3911 u64 data) 3912 { 3913 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3914 3915 return dd->sw_send_dma_eng_err_status_cnt[14]; 3916 } 3917 3918 static u64 access_sdma_timeout_err_cnt(const struct cntr_entry *entry, 3919 void *context, int vl, int mode, 3920 u64 data) 3921 { 3922 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3923 3924 return dd->sw_send_dma_eng_err_status_cnt[13]; 3925 } 3926 3927 static u64 access_sdma_header_length_err_cnt(const struct cntr_entry *entry, 3928 void *context, int vl, int mode, 3929 u64 data) 3930 { 3931 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3932 3933 return dd->sw_send_dma_eng_err_status_cnt[12]; 3934 } 3935 3936 static u64 access_sdma_header_address_err_cnt(const struct cntr_entry *entry, 3937 void *context, int vl, int mode, 3938 u64 data) 3939 { 3940 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3941 3942 return dd->sw_send_dma_eng_err_status_cnt[11]; 3943 } 3944 3945 static u64 access_sdma_header_select_err_cnt(const struct cntr_entry *entry, 3946 void *context, int vl, int mode, 3947 u64 data) 3948 { 3949 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3950 3951 return dd->sw_send_dma_eng_err_status_cnt[10]; 3952 } 3953 3954 static u64 access_sdma_reserved_9_err_cnt(const struct cntr_entry *entry, 3955 void *context, int vl, int mode, 3956 u64 data) 3957 { 3958 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3959 3960 return dd->sw_send_dma_eng_err_status_cnt[9]; 3961 } 3962 3963 static u64 access_sdma_packet_desc_overflow_err_cnt( 3964 const struct cntr_entry *entry, 3965 void *context, int vl, int mode, u64 data) 3966 { 3967 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3968 3969 return dd->sw_send_dma_eng_err_status_cnt[8]; 3970 } 3971 3972 static u64 access_sdma_length_mismatch_err_cnt(const struct cntr_entry *entry, 3973 void *context, int vl, 3974 int mode, u64 data) 3975 { 3976 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3977 3978 return dd->sw_send_dma_eng_err_status_cnt[7]; 3979 } 3980 3981 static u64 access_sdma_halt_err_cnt(const struct cntr_entry *entry, 3982 void *context, int vl, int mode, u64 data) 3983 { 3984 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3985 3986 return dd->sw_send_dma_eng_err_status_cnt[6]; 3987 } 3988 3989 static u64 access_sdma_mem_read_err_cnt(const struct cntr_entry *entry, 3990 void *context, int vl, int mode, 3991 u64 data) 3992 { 3993 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 3994 3995 return dd->sw_send_dma_eng_err_status_cnt[5]; 3996 } 3997 3998 static u64 access_sdma_first_desc_err_cnt(const struct cntr_entry *entry, 3999 void *context, int vl, int mode, 4000 u64 data) 4001 { 4002 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4003 4004 return dd->sw_send_dma_eng_err_status_cnt[4]; 4005 } 4006 4007 static u64 access_sdma_tail_out_of_bounds_err_cnt( 4008 const struct cntr_entry *entry, 4009 void *context, int vl, int mode, u64 data) 4010 { 4011 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4012 4013 return dd->sw_send_dma_eng_err_status_cnt[3]; 4014 } 4015 4016 static u64 access_sdma_too_long_err_cnt(const struct cntr_entry *entry, 4017 void *context, int vl, int mode, 4018 u64 data) 4019 { 4020 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4021 4022 return dd->sw_send_dma_eng_err_status_cnt[2]; 4023 } 4024 4025 static u64 access_sdma_gen_mismatch_err_cnt(const struct cntr_entry *entry, 4026 void *context, int vl, int mode, 4027 u64 data) 4028 { 4029 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4030 4031 return dd->sw_send_dma_eng_err_status_cnt[1]; 4032 } 4033 4034 static u64 access_sdma_wrong_dw_err_cnt(const struct cntr_entry *entry, 4035 void *context, int vl, int mode, 4036 u64 data) 4037 { 4038 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4039 4040 return dd->sw_send_dma_eng_err_status_cnt[0]; 4041 } 4042 4043 static u64 access_dc_rcv_err_cnt(const struct cntr_entry *entry, 4044 void *context, int vl, int mode, 4045 u64 data) 4046 { 4047 struct hfi1_devdata *dd = (struct hfi1_devdata *)context; 4048 4049 u64 val = 0; 4050 u64 csr = entry->csr; 4051 4052 val = read_write_csr(dd, csr, mode, data); 4053 if (mode == CNTR_MODE_R) { 4054 val = val > CNTR_MAX - dd->sw_rcv_bypass_packet_errors ? 4055 CNTR_MAX : val + dd->sw_rcv_bypass_packet_errors; 4056 } else if (mode == CNTR_MODE_W) { 4057 dd->sw_rcv_bypass_packet_errors = 0; 4058 } else { 4059 dd_dev_err(dd, "Invalid cntr register access mode"); 4060 return 0; 4061 } 4062 return val; 4063 } 4064 4065 #define def_access_sw_cpu(cntr) \ 4066 static u64 access_sw_cpu_##cntr(const struct cntr_entry *entry, \ 4067 void *context, int vl, int mode, u64 data) \ 4068 { \ 4069 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; \ 4070 return read_write_cpu(ppd->dd, &ppd->ibport_data.rvp.z_ ##cntr, \ 4071 ppd->ibport_data.rvp.cntr, vl, \ 4072 mode, data); \ 4073 } 4074 4075 def_access_sw_cpu(rc_acks); 4076 def_access_sw_cpu(rc_qacks); 4077 def_access_sw_cpu(rc_delayed_comp); 4078 4079 #define def_access_ibp_counter(cntr) \ 4080 static u64 access_ibp_##cntr(const struct cntr_entry *entry, \ 4081 void *context, int vl, int mode, u64 data) \ 4082 { \ 4083 struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context; \ 4084 \ 4085 if (vl != CNTR_INVALID_VL) \ 4086 return 0; \ 4087 \ 4088 return read_write_sw(ppd->dd, &ppd->ibport_data.rvp.n_ ##cntr, \ 4089 mode, data); \ 4090 } 4091 4092 def_access_ibp_counter(loop_pkts); 4093 def_access_ibp_counter(rc_resends); 4094 def_access_ibp_counter(rnr_naks); 4095 def_access_ibp_counter(other_naks); 4096 def_access_ibp_counter(rc_timeouts); 4097 def_access_ibp_counter(pkt_drops); 4098 def_access_ibp_counter(dmawait); 4099 def_access_ibp_counter(rc_seqnak); 4100 def_access_ibp_counter(rc_dupreq); 4101 def_access_ibp_counter(rdma_seq); 4102 def_access_ibp_counter(unaligned); 4103 def_access_ibp_counter(seq_naks); 4104 4105 static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = { 4106 [C_RCV_OVF] = RXE32_DEV_CNTR_ELEM(RcvOverflow, RCV_BUF_OVFL_CNT, CNTR_SYNTH), 4107 [C_RX_LEN_ERR] = RXE32_DEV_CNTR_ELEM(RxLenErr, RCV_LENGTH_ERR_CNT, CNTR_SYNTH), 4108 [C_RX_ICRC_ERR] = RXE32_DEV_CNTR_ELEM(RxICrcErr, RCV_ICRC_ERR_CNT, CNTR_SYNTH), 4109 [C_RX_EBP] = RXE32_DEV_CNTR_ELEM(RxEbpCnt, RCV_EBP_CNT, CNTR_SYNTH), 4110 [C_RX_TID_FULL] = RXE32_DEV_CNTR_ELEM(RxTIDFullEr, RCV_TID_FULL_ERR_CNT, 4111 CNTR_NORMAL), 4112 [C_RX_TID_INVALID] = RXE32_DEV_CNTR_ELEM(RxTIDInvalid, RCV_TID_VALID_ERR_CNT, 4113 CNTR_NORMAL), 4114 [C_RX_TID_FLGMS] = RXE32_DEV_CNTR_ELEM(RxTidFLGMs, 4115 RCV_TID_FLOW_GEN_MISMATCH_CNT, 4116 CNTR_NORMAL), 4117 [C_RX_CTX_EGRS] = RXE32_DEV_CNTR_ELEM(RxCtxEgrS, RCV_CONTEXT_EGR_STALL, 4118 CNTR_NORMAL), 4119 [C_RCV_TID_FLSMS] = RXE32_DEV_CNTR_ELEM(RxTidFLSMs, 4120 RCV_TID_FLOW_SEQ_MISMATCH_CNT, CNTR_NORMAL), 4121 [C_CCE_PCI_CR_ST] = CCE_PERF_DEV_CNTR_ELEM(CcePciCrSt, 4122 CCE_PCIE_POSTED_CRDT_STALL_CNT, CNTR_NORMAL), 4123 [C_CCE_PCI_TR_ST] = CCE_PERF_DEV_CNTR_ELEM(CcePciTrSt, CCE_PCIE_TRGT_STALL_CNT, 4124 CNTR_NORMAL), 4125 [C_CCE_PIO_WR_ST] = CCE_PERF_DEV_CNTR_ELEM(CcePioWrSt, CCE_PIO_WR_STALL_CNT, 4126 CNTR_NORMAL), 4127 [C_CCE_ERR_INT] = CCE_INT_DEV_CNTR_ELEM(CceErrInt, CCE_ERR_INT_CNT, 4128 CNTR_NORMAL), 4129 [C_CCE_SDMA_INT] = CCE_INT_DEV_CNTR_ELEM(CceSdmaInt, CCE_SDMA_INT_CNT, 4130 CNTR_NORMAL), 4131 [C_CCE_MISC_INT] = CCE_INT_DEV_CNTR_ELEM(CceMiscInt, CCE_MISC_INT_CNT, 4132 CNTR_NORMAL), 4133 [C_CCE_RCV_AV_INT] = CCE_INT_DEV_CNTR_ELEM(CceRcvAvInt, CCE_RCV_AVAIL_INT_CNT, 4134 CNTR_NORMAL), 4135 [C_CCE_RCV_URG_INT] = CCE_INT_DEV_CNTR_ELEM(CceRcvUrgInt, 4136 CCE_RCV_URGENT_INT_CNT, CNTR_NORMAL), 4137 [C_CCE_SEND_CR_INT] = CCE_INT_DEV_CNTR_ELEM(CceSndCrInt, 4138 CCE_SEND_CREDIT_INT_CNT, CNTR_NORMAL), 4139 [C_DC_UNC_ERR] = DC_PERF_CNTR(DcUnctblErr, DCC_ERR_UNCORRECTABLE_CNT, 4140 CNTR_SYNTH), 4141 [C_DC_RCV_ERR] = CNTR_ELEM("DcRecvErr", DCC_ERR_PORTRCV_ERR_CNT, 0, CNTR_SYNTH, 4142 access_dc_rcv_err_cnt), 4143 [C_DC_FM_CFG_ERR] = DC_PERF_CNTR(DcFmCfgErr, DCC_ERR_FMCONFIG_ERR_CNT, 4144 CNTR_SYNTH), 4145 [C_DC_RMT_PHY_ERR] = DC_PERF_CNTR(DcRmtPhyErr, DCC_ERR_RCVREMOTE_PHY_ERR_CNT, 4146 CNTR_SYNTH), 4147 [C_DC_DROPPED_PKT] = DC_PERF_CNTR(DcDroppedPkt, DCC_ERR_DROPPED_PKT_CNT, 4148 CNTR_SYNTH), 4149 [C_DC_MC_XMIT_PKTS] = DC_PERF_CNTR(DcMcXmitPkts, 4150 DCC_PRF_PORT_XMIT_MULTICAST_CNT, CNTR_SYNTH), 4151 [C_DC_MC_RCV_PKTS] = DC_PERF_CNTR(DcMcRcvPkts, 4152 DCC_PRF_PORT_RCV_MULTICAST_PKT_CNT, 4153 CNTR_SYNTH), 4154 [C_DC_XMIT_CERR] = DC_PERF_CNTR(DcXmitCorr, 4155 DCC_PRF_PORT_XMIT_CORRECTABLE_CNT, CNTR_SYNTH), 4156 [C_DC_RCV_CERR] = DC_PERF_CNTR(DcRcvCorrCnt, DCC_PRF_PORT_RCV_CORRECTABLE_CNT, 4157 CNTR_SYNTH), 4158 [C_DC_RCV_FCC] = DC_PERF_CNTR(DcRxFCntl, DCC_PRF_RX_FLOW_CRTL_CNT, 4159 CNTR_SYNTH), 4160 [C_DC_XMIT_FCC] = DC_PERF_CNTR(DcXmitFCntl, DCC_PRF_TX_FLOW_CRTL_CNT, 4161 CNTR_SYNTH), 4162 [C_DC_XMIT_FLITS] = DC_PERF_CNTR(DcXmitFlits, DCC_PRF_PORT_XMIT_DATA_CNT, 4163 CNTR_SYNTH), 4164 [C_DC_RCV_FLITS] = DC_PERF_CNTR(DcRcvFlits, DCC_PRF_PORT_RCV_DATA_CNT, 4165 CNTR_SYNTH), 4166 [C_DC_XMIT_PKTS] = DC_PERF_CNTR(DcXmitPkts, DCC_PRF_PORT_XMIT_PKTS_CNT, 4167 CNTR_SYNTH), 4168 [C_DC_RCV_PKTS] = DC_PERF_CNTR(DcRcvPkts, DCC_PRF_PORT_RCV_PKTS_CNT, 4169 CNTR_SYNTH), 4170 [C_DC_RX_FLIT_VL] = DC_PERF_CNTR(DcRxFlitVl, DCC_PRF_PORT_VL_RCV_DATA_CNT, 4171 CNTR_SYNTH | CNTR_VL), 4172 [C_DC_RX_PKT_VL] = DC_PERF_CNTR(DcRxPktVl, DCC_PRF_PORT_VL_RCV_PKTS_CNT, 4173 CNTR_SYNTH | CNTR_VL), 4174 [C_DC_RCV_FCN] = DC_PERF_CNTR(DcRcvFcn, DCC_PRF_PORT_RCV_FECN_CNT, CNTR_SYNTH), 4175 [C_DC_RCV_FCN_VL] = DC_PERF_CNTR(DcRcvFcnVl, DCC_PRF_PORT_VL_RCV_FECN_CNT, 4176 CNTR_SYNTH | CNTR_VL), 4177 [C_DC_RCV_BCN] = DC_PERF_CNTR(DcRcvBcn, DCC_PRF_PORT_RCV_BECN_CNT, CNTR_SYNTH), 4178 [C_DC_RCV_BCN_VL] = DC_PERF_CNTR(DcRcvBcnVl, DCC_PRF_PORT_VL_RCV_BECN_CNT, 4179 CNTR_SYNTH | CNTR_VL), 4180 [C_DC_RCV_BBL] = DC_PERF_CNTR(DcRcvBbl, DCC_PRF_PORT_RCV_BUBBLE_CNT, 4181 CNTR_SYNTH), 4182 [C_DC_RCV_BBL_VL] = DC_PERF_CNTR(DcRcvBblVl, DCC_PRF_PORT_VL_RCV_BUBBLE_CNT, 4183 CNTR_SYNTH | CNTR_VL), 4184 [C_DC_MARK_FECN] = DC_PERF_CNTR(DcMarkFcn, DCC_PRF_PORT_MARK_FECN_CNT, 4185 CNTR_SYNTH), 4186 [C_DC_MARK_FECN_VL] = DC_PERF_CNTR(DcMarkFcnVl, DCC_PRF_PORT_VL_MARK_FECN_CNT, 4187 CNTR_SYNTH | CNTR_VL), 4188 [C_DC_TOTAL_CRC] = 4189 DC_PERF_CNTR_LCB(DcTotCrc, DC_LCB_ERR_INFO_TOTAL_CRC_ERR, 4190 CNTR_SYNTH), 4191 [C_DC_CRC_LN0] = DC_PERF_CNTR_LCB(DcCrcLn0, DC_LCB_ERR_INFO_CRC_ERR_LN0, 4192 CNTR_SYNTH), 4193 [C_DC_CRC_LN1] = DC_PERF_CNTR_LCB(DcCrcLn1, DC_LCB_ERR_INFO_CRC_ERR_LN1, 4194 CNTR_SYNTH), 4195 [C_DC_CRC_LN2] = DC_PERF_CNTR_LCB(DcCrcLn2, DC_LCB_ERR_INFO_CRC_ERR_LN2, 4196 CNTR_SYNTH), 4197 [C_DC_CRC_LN3] = DC_PERF_CNTR_LCB(DcCrcLn3, DC_LCB_ERR_INFO_CRC_ERR_LN3, 4198 CNTR_SYNTH), 4199 [C_DC_CRC_MULT_LN] = 4200 DC_PERF_CNTR_LCB(DcMultLn, DC_LCB_ERR_INFO_CRC_ERR_MULTI_LN, 4201 CNTR_SYNTH), 4202 [C_DC_TX_REPLAY] = DC_PERF_CNTR_LCB(DcTxReplay, DC_LCB_ERR_INFO_TX_REPLAY_CNT, 4203 CNTR_SYNTH), 4204 [C_DC_RX_REPLAY] = DC_PERF_CNTR_LCB(DcRxReplay, DC_LCB_ERR_INFO_RX_REPLAY_CNT, 4205 CNTR_SYNTH), 4206 [C_DC_SEQ_CRC_CNT] = 4207 DC_PERF_CNTR_LCB(DcLinkSeqCrc, DC_LCB_ERR_INFO_SEQ_CRC_CNT, 4208 CNTR_SYNTH), 4209 [C_DC_ESC0_ONLY_CNT] = 4210 DC_PERF_CNTR_LCB(DcEsc0, DC_LCB_ERR_INFO_ESCAPE_0_ONLY_CNT, 4211 CNTR_SYNTH), 4212 [C_DC_ESC0_PLUS1_CNT] = 4213 DC_PERF_CNTR_LCB(DcEsc1, DC_LCB_ERR_INFO_ESCAPE_0_PLUS1_CNT, 4214 CNTR_SYNTH), 4215 [C_DC_ESC0_PLUS2_CNT] = 4216 DC_PERF_CNTR_LCB(DcEsc0Plus2, DC_LCB_ERR_INFO_ESCAPE_0_PLUS2_CNT, 4217 CNTR_SYNTH), 4218 [C_DC_REINIT_FROM_PEER_CNT] = 4219 DC_PERF_CNTR_LCB(DcReinitPeer, DC_LCB_ERR_INFO_REINIT_FROM_PEER_CNT, 4220 CNTR_SYNTH), 4221 [C_DC_SBE_CNT] = DC_PERF_CNTR_LCB(DcSbe, DC_LCB_ERR_INFO_SBE_CNT, 4222 CNTR_SYNTH), 4223 [C_DC_MISC_FLG_CNT] = 4224 DC_PERF_CNTR_LCB(DcMiscFlg, DC_LCB_ERR_INFO_MISC_FLG_CNT, 4225 CNTR_SYNTH), 4226 [C_DC_PRF_GOOD_LTP_CNT] = 4227 DC_PERF_CNTR_LCB(DcGoodLTP, DC_LCB_PRF_GOOD_LTP_CNT, CNTR_SYNTH), 4228 [C_DC_PRF_ACCEPTED_LTP_CNT] = 4229 DC_PERF_CNTR_LCB(DcAccLTP, DC_LCB_PRF_ACCEPTED_LTP_CNT, 4230 CNTR_SYNTH), 4231 [C_DC_PRF_RX_FLIT_CNT] = 4232 DC_PERF_CNTR_LCB(DcPrfRxFlit, DC_LCB_PRF_RX_FLIT_CNT, CNTR_SYNTH), 4233 [C_DC_PRF_TX_FLIT_CNT] = 4234 DC_PERF_CNTR_LCB(DcPrfTxFlit, DC_LCB_PRF_TX_FLIT_CNT, CNTR_SYNTH), 4235 [C_DC_PRF_CLK_CNTR] = 4236 DC_PERF_CNTR_LCB(DcPrfClk, DC_LCB_PRF_CLK_CNTR, CNTR_SYNTH), 4237 [C_DC_PG_DBG_FLIT_CRDTS_CNT] = 4238 DC_PERF_CNTR_LCB(DcFltCrdts, DC_LCB_PG_DBG_FLIT_CRDTS_CNT, CNTR_SYNTH), 4239 [C_DC_PG_STS_PAUSE_COMPLETE_CNT] = 4240 DC_PERF_CNTR_LCB(DcPauseComp, DC_LCB_PG_STS_PAUSE_COMPLETE_CNT, 4241 CNTR_SYNTH), 4242 [C_DC_PG_STS_TX_SBE_CNT] = 4243 DC_PERF_CNTR_LCB(DcStsTxSbe, DC_LCB_PG_STS_TX_SBE_CNT, CNTR_SYNTH), 4244 [C_DC_PG_STS_TX_MBE_CNT] = 4245 DC_PERF_CNTR_LCB(DcStsTxMbe, DC_LCB_PG_STS_TX_MBE_CNT, 4246 CNTR_SYNTH), 4247 [C_SW_CPU_INTR] = CNTR_ELEM("Intr", 0, 0, CNTR_NORMAL, 4248 access_sw_cpu_intr), 4249 [C_SW_CPU_RCV_LIM] = CNTR_ELEM("RcvLimit", 0, 0, CNTR_NORMAL, 4250 access_sw_cpu_rcv_limit), 4251 [C_SW_VTX_WAIT] = CNTR_ELEM("vTxWait", 0, 0, CNTR_NORMAL, 4252 access_sw_vtx_wait), 4253 [C_SW_PIO_WAIT] = CNTR_ELEM("PioWait", 0, 0, CNTR_NORMAL, 4254 access_sw_pio_wait), 4255 [C_SW_PIO_DRAIN] = CNTR_ELEM("PioDrain", 0, 0, CNTR_NORMAL, 4256 access_sw_pio_drain), 4257 [C_SW_KMEM_WAIT] = CNTR_ELEM("KmemWait", 0, 0, CNTR_NORMAL, 4258 access_sw_kmem_wait), 4259 [C_SW_TID_WAIT] = CNTR_ELEM("TidWait", 0, 0, CNTR_NORMAL, 4260 hfi1_access_sw_tid_wait), 4261 [C_SW_SEND_SCHED] = CNTR_ELEM("SendSched", 0, 0, CNTR_NORMAL, 4262 access_sw_send_schedule), 4263 [C_SDMA_DESC_FETCHED_CNT] = CNTR_ELEM("SDEDscFdCn", 4264 SEND_DMA_DESC_FETCHED_CNT, 0, 4265 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4266 dev_access_u32_csr), 4267 [C_SDMA_INT_CNT] = CNTR_ELEM("SDMAInt", 0, 0, 4268 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4269 access_sde_int_cnt), 4270 [C_SDMA_ERR_CNT] = CNTR_ELEM("SDMAErrCt", 0, 0, 4271 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4272 access_sde_err_cnt), 4273 [C_SDMA_IDLE_INT_CNT] = CNTR_ELEM("SDMAIdInt", 0, 0, 4274 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4275 access_sde_idle_int_cnt), 4276 [C_SDMA_PROGRESS_INT_CNT] = CNTR_ELEM("SDMAPrIntCn", 0, 0, 4277 CNTR_NORMAL | CNTR_32BIT | CNTR_SDMA, 4278 access_sde_progress_int_cnt), 4279 /* MISC_ERR_STATUS */ 4280 [C_MISC_PLL_LOCK_FAIL_ERR] = CNTR_ELEM("MISC_PLL_LOCK_FAIL_ERR", 0, 0, 4281 CNTR_NORMAL, 4282 access_misc_pll_lock_fail_err_cnt), 4283 [C_MISC_MBIST_FAIL_ERR] = CNTR_ELEM("MISC_MBIST_FAIL_ERR", 0, 0, 4284 CNTR_NORMAL, 4285 access_misc_mbist_fail_err_cnt), 4286 [C_MISC_INVALID_EEP_CMD_ERR] = CNTR_ELEM("MISC_INVALID_EEP_CMD_ERR", 0, 0, 4287 CNTR_NORMAL, 4288 access_misc_invalid_eep_cmd_err_cnt), 4289 [C_MISC_EFUSE_DONE_PARITY_ERR] = CNTR_ELEM("MISC_EFUSE_DONE_PARITY_ERR", 0, 0, 4290 CNTR_NORMAL, 4291 access_misc_efuse_done_parity_err_cnt), 4292 [C_MISC_EFUSE_WRITE_ERR] = CNTR_ELEM("MISC_EFUSE_WRITE_ERR", 0, 0, 4293 CNTR_NORMAL, 4294 access_misc_efuse_write_err_cnt), 4295 [C_MISC_EFUSE_READ_BAD_ADDR_ERR] = CNTR_ELEM("MISC_EFUSE_READ_BAD_ADDR_ERR", 0, 4296 0, CNTR_NORMAL, 4297 access_misc_efuse_read_bad_addr_err_cnt), 4298 [C_MISC_EFUSE_CSR_PARITY_ERR] = CNTR_ELEM("MISC_EFUSE_CSR_PARITY_ERR", 0, 0, 4299 CNTR_NORMAL, 4300 access_misc_efuse_csr_parity_err_cnt), 4301 [C_MISC_FW_AUTH_FAILED_ERR] = CNTR_ELEM("MISC_FW_AUTH_FAILED_ERR", 0, 0, 4302 CNTR_NORMAL, 4303 access_misc_fw_auth_failed_err_cnt), 4304 [C_MISC_KEY_MISMATCH_ERR] = CNTR_ELEM("MISC_KEY_MISMATCH_ERR", 0, 0, 4305 CNTR_NORMAL, 4306 access_misc_key_mismatch_err_cnt), 4307 [C_MISC_SBUS_WRITE_FAILED_ERR] = CNTR_ELEM("MISC_SBUS_WRITE_FAILED_ERR", 0, 0, 4308 CNTR_NORMAL, 4309 access_misc_sbus_write_failed_err_cnt), 4310 [C_MISC_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("MISC_CSR_WRITE_BAD_ADDR_ERR", 0, 0, 4311 CNTR_NORMAL, 4312 access_misc_csr_write_bad_addr_err_cnt), 4313 [C_MISC_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("MISC_CSR_READ_BAD_ADDR_ERR", 0, 0, 4314 CNTR_NORMAL, 4315 access_misc_csr_read_bad_addr_err_cnt), 4316 [C_MISC_CSR_PARITY_ERR] = CNTR_ELEM("MISC_CSR_PARITY_ERR", 0, 0, 4317 CNTR_NORMAL, 4318 access_misc_csr_parity_err_cnt), 4319 /* CceErrStatus */ 4320 [C_CCE_ERR_STATUS_AGGREGATED_CNT] = CNTR_ELEM("CceErrStatusAggregatedCnt", 0, 0, 4321 CNTR_NORMAL, 4322 access_sw_cce_err_status_aggregated_cnt), 4323 [C_CCE_MSIX_CSR_PARITY_ERR] = CNTR_ELEM("CceMsixCsrParityErr", 0, 0, 4324 CNTR_NORMAL, 4325 access_cce_msix_csr_parity_err_cnt), 4326 [C_CCE_INT_MAP_UNC_ERR] = CNTR_ELEM("CceIntMapUncErr", 0, 0, 4327 CNTR_NORMAL, 4328 access_cce_int_map_unc_err_cnt), 4329 [C_CCE_INT_MAP_COR_ERR] = CNTR_ELEM("CceIntMapCorErr", 0, 0, 4330 CNTR_NORMAL, 4331 access_cce_int_map_cor_err_cnt), 4332 [C_CCE_MSIX_TABLE_UNC_ERR] = CNTR_ELEM("CceMsixTableUncErr", 0, 0, 4333 CNTR_NORMAL, 4334 access_cce_msix_table_unc_err_cnt), 4335 [C_CCE_MSIX_TABLE_COR_ERR] = CNTR_ELEM("CceMsixTableCorErr", 0, 0, 4336 CNTR_NORMAL, 4337 access_cce_msix_table_cor_err_cnt), 4338 [C_CCE_RXDMA_CONV_FIFO_PARITY_ERR] = CNTR_ELEM("CceRxdmaConvFifoParityErr", 0, 4339 0, CNTR_NORMAL, 4340 access_cce_rxdma_conv_fifo_parity_err_cnt), 4341 [C_CCE_RCPL_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceRcplAsyncFifoParityErr", 0, 4342 0, CNTR_NORMAL, 4343 access_cce_rcpl_async_fifo_parity_err_cnt), 4344 [C_CCE_SEG_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("CceSegWriteBadAddrErr", 0, 0, 4345 CNTR_NORMAL, 4346 access_cce_seg_write_bad_addr_err_cnt), 4347 [C_CCE_SEG_READ_BAD_ADDR_ERR] = CNTR_ELEM("CceSegReadBadAddrErr", 0, 0, 4348 CNTR_NORMAL, 4349 access_cce_seg_read_bad_addr_err_cnt), 4350 [C_LA_TRIGGERED] = CNTR_ELEM("Cce LATriggered", 0, 0, 4351 CNTR_NORMAL, 4352 access_la_triggered_cnt), 4353 [C_CCE_TRGT_CPL_TIMEOUT_ERR] = CNTR_ELEM("CceTrgtCplTimeoutErr", 0, 0, 4354 CNTR_NORMAL, 4355 access_cce_trgt_cpl_timeout_err_cnt), 4356 [C_PCIC_RECEIVE_PARITY_ERR] = CNTR_ELEM("PcicReceiveParityErr", 0, 0, 4357 CNTR_NORMAL, 4358 access_pcic_receive_parity_err_cnt), 4359 [C_PCIC_TRANSMIT_BACK_PARITY_ERR] = CNTR_ELEM("PcicTransmitBackParityErr", 0, 0, 4360 CNTR_NORMAL, 4361 access_pcic_transmit_back_parity_err_cnt), 4362 [C_PCIC_TRANSMIT_FRONT_PARITY_ERR] = CNTR_ELEM("PcicTransmitFrontParityErr", 0, 4363 0, CNTR_NORMAL, 4364 access_pcic_transmit_front_parity_err_cnt), 4365 [C_PCIC_CPL_DAT_Q_UNC_ERR] = CNTR_ELEM("PcicCplDatQUncErr", 0, 0, 4366 CNTR_NORMAL, 4367 access_pcic_cpl_dat_q_unc_err_cnt), 4368 [C_PCIC_CPL_HD_Q_UNC_ERR] = CNTR_ELEM("PcicCplHdQUncErr", 0, 0, 4369 CNTR_NORMAL, 4370 access_pcic_cpl_hd_q_unc_err_cnt), 4371 [C_PCIC_POST_DAT_Q_UNC_ERR] = CNTR_ELEM("PcicPostDatQUncErr", 0, 0, 4372 CNTR_NORMAL, 4373 access_pcic_post_dat_q_unc_err_cnt), 4374 [C_PCIC_POST_HD_Q_UNC_ERR] = CNTR_ELEM("PcicPostHdQUncErr", 0, 0, 4375 CNTR_NORMAL, 4376 access_pcic_post_hd_q_unc_err_cnt), 4377 [C_PCIC_RETRY_SOT_MEM_UNC_ERR] = CNTR_ELEM("PcicRetrySotMemUncErr", 0, 0, 4378 CNTR_NORMAL, 4379 access_pcic_retry_sot_mem_unc_err_cnt), 4380 [C_PCIC_RETRY_MEM_UNC_ERR] = CNTR_ELEM("PcicRetryMemUncErr", 0, 0, 4381 CNTR_NORMAL, 4382 access_pcic_retry_mem_unc_err), 4383 [C_PCIC_N_POST_DAT_Q_PARITY_ERR] = CNTR_ELEM("PcicNPostDatQParityErr", 0, 0, 4384 CNTR_NORMAL, 4385 access_pcic_n_post_dat_q_parity_err_cnt), 4386 [C_PCIC_N_POST_H_Q_PARITY_ERR] = CNTR_ELEM("PcicNPostHQParityErr", 0, 0, 4387 CNTR_NORMAL, 4388 access_pcic_n_post_h_q_parity_err_cnt), 4389 [C_PCIC_CPL_DAT_Q_COR_ERR] = CNTR_ELEM("PcicCplDatQCorErr", 0, 0, 4390 CNTR_NORMAL, 4391 access_pcic_cpl_dat_q_cor_err_cnt), 4392 [C_PCIC_CPL_HD_Q_COR_ERR] = CNTR_ELEM("PcicCplHdQCorErr", 0, 0, 4393 CNTR_NORMAL, 4394 access_pcic_cpl_hd_q_cor_err_cnt), 4395 [C_PCIC_POST_DAT_Q_COR_ERR] = CNTR_ELEM("PcicPostDatQCorErr", 0, 0, 4396 CNTR_NORMAL, 4397 access_pcic_post_dat_q_cor_err_cnt), 4398 [C_PCIC_POST_HD_Q_COR_ERR] = CNTR_ELEM("PcicPostHdQCorErr", 0, 0, 4399 CNTR_NORMAL, 4400 access_pcic_post_hd_q_cor_err_cnt), 4401 [C_PCIC_RETRY_SOT_MEM_COR_ERR] = CNTR_ELEM("PcicRetrySotMemCorErr", 0, 0, 4402 CNTR_NORMAL, 4403 access_pcic_retry_sot_mem_cor_err_cnt), 4404 [C_PCIC_RETRY_MEM_COR_ERR] = CNTR_ELEM("PcicRetryMemCorErr", 0, 0, 4405 CNTR_NORMAL, 4406 access_pcic_retry_mem_cor_err_cnt), 4407 [C_CCE_CLI1_ASYNC_FIFO_DBG_PARITY_ERR] = CNTR_ELEM( 4408 "CceCli1AsyncFifoDbgParityError", 0, 0, 4409 CNTR_NORMAL, 4410 access_cce_cli1_async_fifo_dbg_parity_err_cnt), 4411 [C_CCE_CLI1_ASYNC_FIFO_RXDMA_PARITY_ERR] = CNTR_ELEM( 4412 "CceCli1AsyncFifoRxdmaParityError", 0, 0, 4413 CNTR_NORMAL, 4414 access_cce_cli1_async_fifo_rxdma_parity_err_cnt 4415 ), 4416 [C_CCE_CLI1_ASYNC_FIFO_SDMA_HD_PARITY_ERR] = CNTR_ELEM( 4417 "CceCli1AsyncFifoSdmaHdParityErr", 0, 0, 4418 CNTR_NORMAL, 4419 access_cce_cli1_async_fifo_sdma_hd_parity_err_cnt), 4420 [C_CCE_CLI1_ASYNC_FIFO_PIO_CRDT_PARITY_ERR] = CNTR_ELEM( 4421 "CceCli1AsyncFifoPioCrdtParityErr", 0, 0, 4422 CNTR_NORMAL, 4423 access_cce_cl1_async_fifo_pio_crdt_parity_err_cnt), 4424 [C_CCE_CLI2_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceCli2AsyncFifoParityErr", 0, 4425 0, CNTR_NORMAL, 4426 access_cce_cli2_async_fifo_parity_err_cnt), 4427 [C_CCE_CSR_CFG_BUS_PARITY_ERR] = CNTR_ELEM("CceCsrCfgBusParityErr", 0, 0, 4428 CNTR_NORMAL, 4429 access_cce_csr_cfg_bus_parity_err_cnt), 4430 [C_CCE_CLI0_ASYNC_FIFO_PARTIY_ERR] = CNTR_ELEM("CceCli0AsyncFifoParityErr", 0, 4431 0, CNTR_NORMAL, 4432 access_cce_cli0_async_fifo_parity_err_cnt), 4433 [C_CCE_RSPD_DATA_PARITY_ERR] = CNTR_ELEM("CceRspdDataParityErr", 0, 0, 4434 CNTR_NORMAL, 4435 access_cce_rspd_data_parity_err_cnt), 4436 [C_CCE_TRGT_ACCESS_ERR] = CNTR_ELEM("CceTrgtAccessErr", 0, 0, 4437 CNTR_NORMAL, 4438 access_cce_trgt_access_err_cnt), 4439 [C_CCE_TRGT_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceTrgtAsyncFifoParityErr", 0, 4440 0, CNTR_NORMAL, 4441 access_cce_trgt_async_fifo_parity_err_cnt), 4442 [C_CCE_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("CceCsrWriteBadAddrErr", 0, 0, 4443 CNTR_NORMAL, 4444 access_cce_csr_write_bad_addr_err_cnt), 4445 [C_CCE_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("CceCsrReadBadAddrErr", 0, 0, 4446 CNTR_NORMAL, 4447 access_cce_csr_read_bad_addr_err_cnt), 4448 [C_CCE_CSR_PARITY_ERR] = CNTR_ELEM("CceCsrParityErr", 0, 0, 4449 CNTR_NORMAL, 4450 access_ccs_csr_parity_err_cnt), 4451 4452 /* RcvErrStatus */ 4453 [C_RX_CSR_PARITY_ERR] = CNTR_ELEM("RxCsrParityErr", 0, 0, 4454 CNTR_NORMAL, 4455 access_rx_csr_parity_err_cnt), 4456 [C_RX_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("RxCsrWriteBadAddrErr", 0, 0, 4457 CNTR_NORMAL, 4458 access_rx_csr_write_bad_addr_err_cnt), 4459 [C_RX_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("RxCsrReadBadAddrErr", 0, 0, 4460 CNTR_NORMAL, 4461 access_rx_csr_read_bad_addr_err_cnt), 4462 [C_RX_DMA_CSR_UNC_ERR] = CNTR_ELEM("RxDmaCsrUncErr", 0, 0, 4463 CNTR_NORMAL, 4464 access_rx_dma_csr_unc_err_cnt), 4465 [C_RX_DMA_DQ_FSM_ENCODING_ERR] = CNTR_ELEM("RxDmaDqFsmEncodingErr", 0, 0, 4466 CNTR_NORMAL, 4467 access_rx_dma_dq_fsm_encoding_err_cnt), 4468 [C_RX_DMA_EQ_FSM_ENCODING_ERR] = CNTR_ELEM("RxDmaEqFsmEncodingErr", 0, 0, 4469 CNTR_NORMAL, 4470 access_rx_dma_eq_fsm_encoding_err_cnt), 4471 [C_RX_DMA_CSR_PARITY_ERR] = CNTR_ELEM("RxDmaCsrParityErr", 0, 0, 4472 CNTR_NORMAL, 4473 access_rx_dma_csr_parity_err_cnt), 4474 [C_RX_RBUF_DATA_COR_ERR] = CNTR_ELEM("RxRbufDataCorErr", 0, 0, 4475 CNTR_NORMAL, 4476 access_rx_rbuf_data_cor_err_cnt), 4477 [C_RX_RBUF_DATA_UNC_ERR] = CNTR_ELEM("RxRbufDataUncErr", 0, 0, 4478 CNTR_NORMAL, 4479 access_rx_rbuf_data_unc_err_cnt), 4480 [C_RX_DMA_DATA_FIFO_RD_COR_ERR] = CNTR_ELEM("RxDmaDataFifoRdCorErr", 0, 0, 4481 CNTR_NORMAL, 4482 access_rx_dma_data_fifo_rd_cor_err_cnt), 4483 [C_RX_DMA_DATA_FIFO_RD_UNC_ERR] = CNTR_ELEM("RxDmaDataFifoRdUncErr", 0, 0, 4484 CNTR_NORMAL, 4485 access_rx_dma_data_fifo_rd_unc_err_cnt), 4486 [C_RX_DMA_HDR_FIFO_RD_COR_ERR] = CNTR_ELEM("RxDmaHdrFifoRdCorErr", 0, 0, 4487 CNTR_NORMAL, 4488 access_rx_dma_hdr_fifo_rd_cor_err_cnt), 4489 [C_RX_DMA_HDR_FIFO_RD_UNC_ERR] = CNTR_ELEM("RxDmaHdrFifoRdUncErr", 0, 0, 4490 CNTR_NORMAL, 4491 access_rx_dma_hdr_fifo_rd_unc_err_cnt), 4492 [C_RX_RBUF_DESC_PART2_COR_ERR] = CNTR_ELEM("RxRbufDescPart2CorErr", 0, 0, 4493 CNTR_NORMAL, 4494 access_rx_rbuf_desc_part2_cor_err_cnt), 4495 [C_RX_RBUF_DESC_PART2_UNC_ERR] = CNTR_ELEM("RxRbufDescPart2UncErr", 0, 0, 4496 CNTR_NORMAL, 4497 access_rx_rbuf_desc_part2_unc_err_cnt), 4498 [C_RX_RBUF_DESC_PART1_COR_ERR] = CNTR_ELEM("RxRbufDescPart1CorErr", 0, 0, 4499 CNTR_NORMAL, 4500 access_rx_rbuf_desc_part1_cor_err_cnt), 4501 [C_RX_RBUF_DESC_PART1_UNC_ERR] = CNTR_ELEM("RxRbufDescPart1UncErr", 0, 0, 4502 CNTR_NORMAL, 4503 access_rx_rbuf_desc_part1_unc_err_cnt), 4504 [C_RX_HQ_INTR_FSM_ERR] = CNTR_ELEM("RxHqIntrFsmErr", 0, 0, 4505 CNTR_NORMAL, 4506 access_rx_hq_intr_fsm_err_cnt), 4507 [C_RX_HQ_INTR_CSR_PARITY_ERR] = CNTR_ELEM("RxHqIntrCsrParityErr", 0, 0, 4508 CNTR_NORMAL, 4509 access_rx_hq_intr_csr_parity_err_cnt), 4510 [C_RX_LOOKUP_CSR_PARITY_ERR] = CNTR_ELEM("RxLookupCsrParityErr", 0, 0, 4511 CNTR_NORMAL, 4512 access_rx_lookup_csr_parity_err_cnt), 4513 [C_RX_LOOKUP_RCV_ARRAY_COR_ERR] = CNTR_ELEM("RxLookupRcvArrayCorErr", 0, 0, 4514 CNTR_NORMAL, 4515 access_rx_lookup_rcv_array_cor_err_cnt), 4516 [C_RX_LOOKUP_RCV_ARRAY_UNC_ERR] = CNTR_ELEM("RxLookupRcvArrayUncErr", 0, 0, 4517 CNTR_NORMAL, 4518 access_rx_lookup_rcv_array_unc_err_cnt), 4519 [C_RX_LOOKUP_DES_PART2_PARITY_ERR] = CNTR_ELEM("RxLookupDesPart2ParityErr", 0, 4520 0, CNTR_NORMAL, 4521 access_rx_lookup_des_part2_parity_err_cnt), 4522 [C_RX_LOOKUP_DES_PART1_UNC_COR_ERR] = CNTR_ELEM("RxLookupDesPart1UncCorErr", 0, 4523 0, CNTR_NORMAL, 4524 access_rx_lookup_des_part1_unc_cor_err_cnt), 4525 [C_RX_LOOKUP_DES_PART1_UNC_ERR] = CNTR_ELEM("RxLookupDesPart1UncErr", 0, 0, 4526 CNTR_NORMAL, 4527 access_rx_lookup_des_part1_unc_err_cnt), 4528 [C_RX_RBUF_NEXT_FREE_BUF_COR_ERR] = CNTR_ELEM("RxRbufNextFreeBufCorErr", 0, 0, 4529 CNTR_NORMAL, 4530 access_rx_rbuf_next_free_buf_cor_err_cnt), 4531 [C_RX_RBUF_NEXT_FREE_BUF_UNC_ERR] = CNTR_ELEM("RxRbufNextFreeBufUncErr", 0, 0, 4532 CNTR_NORMAL, 4533 access_rx_rbuf_next_free_buf_unc_err_cnt), 4534 [C_RX_RBUF_FL_INIT_WR_ADDR_PARITY_ERR] = CNTR_ELEM( 4535 "RxRbufFlInitWrAddrParityErr", 0, 0, 4536 CNTR_NORMAL, 4537 access_rbuf_fl_init_wr_addr_parity_err_cnt), 4538 [C_RX_RBUF_FL_INITDONE_PARITY_ERR] = CNTR_ELEM("RxRbufFlInitdoneParityErr", 0, 4539 0, CNTR_NORMAL, 4540 access_rx_rbuf_fl_initdone_parity_err_cnt), 4541 [C_RX_RBUF_FL_WRITE_ADDR_PARITY_ERR] = CNTR_ELEM("RxRbufFlWrAddrParityErr", 0, 4542 0, CNTR_NORMAL, 4543 access_rx_rbuf_fl_write_addr_parity_err_cnt), 4544 [C_RX_RBUF_FL_RD_ADDR_PARITY_ERR] = CNTR_ELEM("RxRbufFlRdAddrParityErr", 0, 0, 4545 CNTR_NORMAL, 4546 access_rx_rbuf_fl_rd_addr_parity_err_cnt), 4547 [C_RX_RBUF_EMPTY_ERR] = CNTR_ELEM("RxRbufEmptyErr", 0, 0, 4548 CNTR_NORMAL, 4549 access_rx_rbuf_empty_err_cnt), 4550 [C_RX_RBUF_FULL_ERR] = CNTR_ELEM("RxRbufFullErr", 0, 0, 4551 CNTR_NORMAL, 4552 access_rx_rbuf_full_err_cnt), 4553 [C_RX_RBUF_BAD_LOOKUP_ERR] = CNTR_ELEM("RxRBufBadLookupErr", 0, 0, 4554 CNTR_NORMAL, 4555 access_rbuf_bad_lookup_err_cnt), 4556 [C_RX_RBUF_CTX_ID_PARITY_ERR] = CNTR_ELEM("RxRbufCtxIdParityErr", 0, 0, 4557 CNTR_NORMAL, 4558 access_rbuf_ctx_id_parity_err_cnt), 4559 [C_RX_RBUF_CSR_QEOPDW_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQEOPDWParityErr", 0, 0, 4560 CNTR_NORMAL, 4561 access_rbuf_csr_qeopdw_parity_err_cnt), 4562 [C_RX_RBUF_CSR_Q_NUM_OF_PKT_PARITY_ERR] = CNTR_ELEM( 4563 "RxRbufCsrQNumOfPktParityErr", 0, 0, 4564 CNTR_NORMAL, 4565 access_rx_rbuf_csr_q_num_of_pkt_parity_err_cnt), 4566 [C_RX_RBUF_CSR_Q_T1_PTR_PARITY_ERR] = CNTR_ELEM( 4567 "RxRbufCsrQTlPtrParityErr", 0, 0, 4568 CNTR_NORMAL, 4569 access_rx_rbuf_csr_q_t1_ptr_parity_err_cnt), 4570 [C_RX_RBUF_CSR_Q_HD_PTR_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQHdPtrParityErr", 0, 4571 0, CNTR_NORMAL, 4572 access_rx_rbuf_csr_q_hd_ptr_parity_err_cnt), 4573 [C_RX_RBUF_CSR_Q_VLD_BIT_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQVldBitParityErr", 0, 4574 0, CNTR_NORMAL, 4575 access_rx_rbuf_csr_q_vld_bit_parity_err_cnt), 4576 [C_RX_RBUF_CSR_Q_NEXT_BUF_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQNextBufParityErr", 4577 0, 0, CNTR_NORMAL, 4578 access_rx_rbuf_csr_q_next_buf_parity_err_cnt), 4579 [C_RX_RBUF_CSR_Q_ENT_CNT_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQEntCntParityErr", 0, 4580 0, CNTR_NORMAL, 4581 access_rx_rbuf_csr_q_ent_cnt_parity_err_cnt), 4582 [C_RX_RBUF_CSR_Q_HEAD_BUF_NUM_PARITY_ERR] = CNTR_ELEM( 4583 "RxRbufCsrQHeadBufNumParityErr", 0, 0, 4584 CNTR_NORMAL, 4585 access_rx_rbuf_csr_q_head_buf_num_parity_err_cnt), 4586 [C_RX_RBUF_BLOCK_LIST_READ_COR_ERR] = CNTR_ELEM("RxRbufBlockListReadCorErr", 0, 4587 0, CNTR_NORMAL, 4588 access_rx_rbuf_block_list_read_cor_err_cnt), 4589 [C_RX_RBUF_BLOCK_LIST_READ_UNC_ERR] = CNTR_ELEM("RxRbufBlockListReadUncErr", 0, 4590 0, CNTR_NORMAL, 4591 access_rx_rbuf_block_list_read_unc_err_cnt), 4592 [C_RX_RBUF_LOOKUP_DES_COR_ERR] = CNTR_ELEM("RxRbufLookupDesCorErr", 0, 0, 4593 CNTR_NORMAL, 4594 access_rx_rbuf_lookup_des_cor_err_cnt), 4595 [C_RX_RBUF_LOOKUP_DES_UNC_ERR] = CNTR_ELEM("RxRbufLookupDesUncErr", 0, 0, 4596 CNTR_NORMAL, 4597 access_rx_rbuf_lookup_des_unc_err_cnt), 4598 [C_RX_RBUF_LOOKUP_DES_REG_UNC_COR_ERR] = CNTR_ELEM( 4599 "RxRbufLookupDesRegUncCorErr", 0, 0, 4600 CNTR_NORMAL, 4601 access_rx_rbuf_lookup_des_reg_unc_cor_err_cnt), 4602 [C_RX_RBUF_LOOKUP_DES_REG_UNC_ERR] = CNTR_ELEM("RxRbufLookupDesRegUncErr", 0, 0, 4603 CNTR_NORMAL, 4604 access_rx_rbuf_lookup_des_reg_unc_err_cnt), 4605 [C_RX_RBUF_FREE_LIST_COR_ERR] = CNTR_ELEM("RxRbufFreeListCorErr", 0, 0, 4606 CNTR_NORMAL, 4607 access_rx_rbuf_free_list_cor_err_cnt), 4608 [C_RX_RBUF_FREE_LIST_UNC_ERR] = CNTR_ELEM("RxRbufFreeListUncErr", 0, 0, 4609 CNTR_NORMAL, 4610 access_rx_rbuf_free_list_unc_err_cnt), 4611 [C_RX_RCV_FSM_ENCODING_ERR] = CNTR_ELEM("RxRcvFsmEncodingErr", 0, 0, 4612 CNTR_NORMAL, 4613 access_rx_rcv_fsm_encoding_err_cnt), 4614 [C_RX_DMA_FLAG_COR_ERR] = CNTR_ELEM("RxDmaFlagCorErr", 0, 0, 4615 CNTR_NORMAL, 4616 access_rx_dma_flag_cor_err_cnt), 4617 [C_RX_DMA_FLAG_UNC_ERR] = CNTR_ELEM("RxDmaFlagUncErr", 0, 0, 4618 CNTR_NORMAL, 4619 access_rx_dma_flag_unc_err_cnt), 4620 [C_RX_DC_SOP_EOP_PARITY_ERR] = CNTR_ELEM("RxDcSopEopParityErr", 0, 0, 4621 CNTR_NORMAL, 4622 access_rx_dc_sop_eop_parity_err_cnt), 4623 [C_RX_RCV_CSR_PARITY_ERR] = CNTR_ELEM("RxRcvCsrParityErr", 0, 0, 4624 CNTR_NORMAL, 4625 access_rx_rcv_csr_parity_err_cnt), 4626 [C_RX_RCV_QP_MAP_TABLE_COR_ERR] = CNTR_ELEM("RxRcvQpMapTableCorErr", 0, 0, 4627 CNTR_NORMAL, 4628 access_rx_rcv_qp_map_table_cor_err_cnt), 4629 [C_RX_RCV_QP_MAP_TABLE_UNC_ERR] = CNTR_ELEM("RxRcvQpMapTableUncErr", 0, 0, 4630 CNTR_NORMAL, 4631 access_rx_rcv_qp_map_table_unc_err_cnt), 4632 [C_RX_RCV_DATA_COR_ERR] = CNTR_ELEM("RxRcvDataCorErr", 0, 0, 4633 CNTR_NORMAL, 4634 access_rx_rcv_data_cor_err_cnt), 4635 [C_RX_RCV_DATA_UNC_ERR] = CNTR_ELEM("RxRcvDataUncErr", 0, 0, 4636 CNTR_NORMAL, 4637 access_rx_rcv_data_unc_err_cnt), 4638 [C_RX_RCV_HDR_COR_ERR] = CNTR_ELEM("RxRcvHdrCorErr", 0, 0, 4639 CNTR_NORMAL, 4640 access_rx_rcv_hdr_cor_err_cnt), 4641 [C_RX_RCV_HDR_UNC_ERR] = CNTR_ELEM("RxRcvHdrUncErr", 0, 0, 4642 CNTR_NORMAL, 4643 access_rx_rcv_hdr_unc_err_cnt), 4644 [C_RX_DC_INTF_PARITY_ERR] = CNTR_ELEM("RxDcIntfParityErr", 0, 0, 4645 CNTR_NORMAL, 4646 access_rx_dc_intf_parity_err_cnt), 4647 [C_RX_DMA_CSR_COR_ERR] = CNTR_ELEM("RxDmaCsrCorErr", 0, 0, 4648 CNTR_NORMAL, 4649 access_rx_dma_csr_cor_err_cnt), 4650 /* SendPioErrStatus */ 4651 [C_PIO_PEC_SOP_HEAD_PARITY_ERR] = CNTR_ELEM("PioPecSopHeadParityErr", 0, 0, 4652 CNTR_NORMAL, 4653 access_pio_pec_sop_head_parity_err_cnt), 4654 [C_PIO_PCC_SOP_HEAD_PARITY_ERR] = CNTR_ELEM("PioPccSopHeadParityErr", 0, 0, 4655 CNTR_NORMAL, 4656 access_pio_pcc_sop_head_parity_err_cnt), 4657 [C_PIO_LAST_RETURNED_CNT_PARITY_ERR] = CNTR_ELEM("PioLastReturnedCntParityErr", 4658 0, 0, CNTR_NORMAL, 4659 access_pio_last_returned_cnt_parity_err_cnt), 4660 [C_PIO_CURRENT_FREE_CNT_PARITY_ERR] = CNTR_ELEM("PioCurrentFreeCntParityErr", 0, 4661 0, CNTR_NORMAL, 4662 access_pio_current_free_cnt_parity_err_cnt), 4663 [C_PIO_RSVD_31_ERR] = CNTR_ELEM("Pio Reserved 31", 0, 0, 4664 CNTR_NORMAL, 4665 access_pio_reserved_31_err_cnt), 4666 [C_PIO_RSVD_30_ERR] = CNTR_ELEM("Pio Reserved 30", 0, 0, 4667 CNTR_NORMAL, 4668 access_pio_reserved_30_err_cnt), 4669 [C_PIO_PPMC_SOP_LEN_ERR] = CNTR_ELEM("PioPpmcSopLenErr", 0, 0, 4670 CNTR_NORMAL, 4671 access_pio_ppmc_sop_len_err_cnt), 4672 [C_PIO_PPMC_BQC_MEM_PARITY_ERR] = CNTR_ELEM("PioPpmcBqcMemParityErr", 0, 0, 4673 CNTR_NORMAL, 4674 access_pio_ppmc_bqc_mem_parity_err_cnt), 4675 [C_PIO_VL_FIFO_PARITY_ERR] = CNTR_ELEM("PioVlFifoParityErr", 0, 0, 4676 CNTR_NORMAL, 4677 access_pio_vl_fifo_parity_err_cnt), 4678 [C_PIO_VLF_SOP_PARITY_ERR] = CNTR_ELEM("PioVlfSopParityErr", 0, 0, 4679 CNTR_NORMAL, 4680 access_pio_vlf_sop_parity_err_cnt), 4681 [C_PIO_VLF_V1_LEN_PARITY_ERR] = CNTR_ELEM("PioVlfVlLenParityErr", 0, 0, 4682 CNTR_NORMAL, 4683 access_pio_vlf_v1_len_parity_err_cnt), 4684 [C_PIO_BLOCK_QW_COUNT_PARITY_ERR] = CNTR_ELEM("PioBlockQwCountParityErr", 0, 0, 4685 CNTR_NORMAL, 4686 access_pio_block_qw_count_parity_err_cnt), 4687 [C_PIO_WRITE_QW_VALID_PARITY_ERR] = CNTR_ELEM("PioWriteQwValidParityErr", 0, 0, 4688 CNTR_NORMAL, 4689 access_pio_write_qw_valid_parity_err_cnt), 4690 [C_PIO_STATE_MACHINE_ERR] = CNTR_ELEM("PioStateMachineErr", 0, 0, 4691 CNTR_NORMAL, 4692 access_pio_state_machine_err_cnt), 4693 [C_PIO_WRITE_DATA_PARITY_ERR] = CNTR_ELEM("PioWriteDataParityErr", 0, 0, 4694 CNTR_NORMAL, 4695 access_pio_write_data_parity_err_cnt), 4696 [C_PIO_HOST_ADDR_MEM_COR_ERR] = CNTR_ELEM("PioHostAddrMemCorErr", 0, 0, 4697 CNTR_NORMAL, 4698 access_pio_host_addr_mem_cor_err_cnt), 4699 [C_PIO_HOST_ADDR_MEM_UNC_ERR] = CNTR_ELEM("PioHostAddrMemUncErr", 0, 0, 4700 CNTR_NORMAL, 4701 access_pio_host_addr_mem_unc_err_cnt), 4702 [C_PIO_PKT_EVICT_SM_OR_ARM_SM_ERR] = CNTR_ELEM("PioPktEvictSmOrArbSmErr", 0, 0, 4703 CNTR_NORMAL, 4704 access_pio_pkt_evict_sm_or_arb_sm_err_cnt), 4705 [C_PIO_INIT_SM_IN_ERR] = CNTR_ELEM("PioInitSmInErr", 0, 0, 4706 CNTR_NORMAL, 4707 access_pio_init_sm_in_err_cnt), 4708 [C_PIO_PPMC_PBL_FIFO_ERR] = CNTR_ELEM("PioPpmcPblFifoErr", 0, 0, 4709 CNTR_NORMAL, 4710 access_pio_ppmc_pbl_fifo_err_cnt), 4711 [C_PIO_CREDIT_RET_FIFO_PARITY_ERR] = CNTR_ELEM("PioCreditRetFifoParityErr", 0, 4712 0, CNTR_NORMAL, 4713 access_pio_credit_ret_fifo_parity_err_cnt), 4714 [C_PIO_V1_LEN_MEM_BANK1_COR_ERR] = CNTR_ELEM("PioVlLenMemBank1CorErr", 0, 0, 4715 CNTR_NORMAL, 4716 access_pio_v1_len_mem_bank1_cor_err_cnt), 4717 [C_PIO_V1_LEN_MEM_BANK0_COR_ERR] = CNTR_ELEM("PioVlLenMemBank0CorErr", 0, 0, 4718 CNTR_NORMAL, 4719 access_pio_v1_len_mem_bank0_cor_err_cnt), 4720 [C_PIO_V1_LEN_MEM_BANK1_UNC_ERR] = CNTR_ELEM("PioVlLenMemBank1UncErr", 0, 0, 4721 CNTR_NORMAL, 4722 access_pio_v1_len_mem_bank1_unc_err_cnt), 4723 [C_PIO_V1_LEN_MEM_BANK0_UNC_ERR] = CNTR_ELEM("PioVlLenMemBank0UncErr", 0, 0, 4724 CNTR_NORMAL, 4725 access_pio_v1_len_mem_bank0_unc_err_cnt), 4726 [C_PIO_SM_PKT_RESET_PARITY_ERR] = CNTR_ELEM("PioSmPktResetParityErr", 0, 0, 4727 CNTR_NORMAL, 4728 access_pio_sm_pkt_reset_parity_err_cnt), 4729 [C_PIO_PKT_EVICT_FIFO_PARITY_ERR] = CNTR_ELEM("PioPktEvictFifoParityErr", 0, 0, 4730 CNTR_NORMAL, 4731 access_pio_pkt_evict_fifo_parity_err_cnt), 4732 [C_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR] = CNTR_ELEM( 4733 "PioSbrdctrlCrrelFifoParityErr", 0, 0, 4734 CNTR_NORMAL, 4735 access_pio_sbrdctrl_crrel_fifo_parity_err_cnt), 4736 [C_PIO_SBRDCTL_CRREL_PARITY_ERR] = CNTR_ELEM("PioSbrdctlCrrelParityErr", 0, 0, 4737 CNTR_NORMAL, 4738 access_pio_sbrdctl_crrel_parity_err_cnt), 4739 [C_PIO_PEC_FIFO_PARITY_ERR] = CNTR_ELEM("PioPecFifoParityErr", 0, 0, 4740 CNTR_NORMAL, 4741 access_pio_pec_fifo_parity_err_cnt), 4742 [C_PIO_PCC_FIFO_PARITY_ERR] = CNTR_ELEM("PioPccFifoParityErr", 0, 0, 4743 CNTR_NORMAL, 4744 access_pio_pcc_fifo_parity_err_cnt), 4745 [C_PIO_SB_MEM_FIFO1_ERR] = CNTR_ELEM("PioSbMemFifo1Err", 0, 0, 4746 CNTR_NORMAL, 4747 access_pio_sb_mem_fifo1_err_cnt), 4748 [C_PIO_SB_MEM_FIFO0_ERR] = CNTR_ELEM("PioSbMemFifo0Err", 0, 0, 4749 CNTR_NORMAL, 4750 access_pio_sb_mem_fifo0_err_cnt), 4751 [C_PIO_CSR_PARITY_ERR] = CNTR_ELEM("PioCsrParityErr", 0, 0, 4752 CNTR_NORMAL, 4753 access_pio_csr_parity_err_cnt), 4754 [C_PIO_WRITE_ADDR_PARITY_ERR] = CNTR_ELEM("PioWriteAddrParityErr", 0, 0, 4755 CNTR_NORMAL, 4756 access_pio_write_addr_parity_err_cnt), 4757 [C_PIO_WRITE_BAD_CTXT_ERR] = CNTR_ELEM("PioWriteBadCtxtErr", 0, 0, 4758 CNTR_NORMAL, 4759 access_pio_write_bad_ctxt_err_cnt), 4760 /* SendDmaErrStatus */ 4761 [C_SDMA_PCIE_REQ_TRACKING_COR_ERR] = CNTR_ELEM("SDmaPcieReqTrackingCorErr", 0, 4762 0, CNTR_NORMAL, 4763 access_sdma_pcie_req_tracking_cor_err_cnt), 4764 [C_SDMA_PCIE_REQ_TRACKING_UNC_ERR] = CNTR_ELEM("SDmaPcieReqTrackingUncErr", 0, 4765 0, CNTR_NORMAL, 4766 access_sdma_pcie_req_tracking_unc_err_cnt), 4767 [C_SDMA_CSR_PARITY_ERR] = CNTR_ELEM("SDmaCsrParityErr", 0, 0, 4768 CNTR_NORMAL, 4769 access_sdma_csr_parity_err_cnt), 4770 [C_SDMA_RPY_TAG_ERR] = CNTR_ELEM("SDmaRpyTagErr", 0, 0, 4771 CNTR_NORMAL, 4772 access_sdma_rpy_tag_err_cnt), 4773 /* SendEgressErrStatus */ 4774 [C_TX_READ_PIO_MEMORY_CSR_UNC_ERR] = CNTR_ELEM("TxReadPioMemoryCsrUncErr", 0, 0, 4775 CNTR_NORMAL, 4776 access_tx_read_pio_memory_csr_unc_err_cnt), 4777 [C_TX_READ_SDMA_MEMORY_CSR_UNC_ERR] = CNTR_ELEM("TxReadSdmaMemoryCsrUncErr", 0, 4778 0, CNTR_NORMAL, 4779 access_tx_read_sdma_memory_csr_err_cnt), 4780 [C_TX_EGRESS_FIFO_COR_ERR] = CNTR_ELEM("TxEgressFifoCorErr", 0, 0, 4781 CNTR_NORMAL, 4782 access_tx_egress_fifo_cor_err_cnt), 4783 [C_TX_READ_PIO_MEMORY_COR_ERR] = CNTR_ELEM("TxReadPioMemoryCorErr", 0, 0, 4784 CNTR_NORMAL, 4785 access_tx_read_pio_memory_cor_err_cnt), 4786 [C_TX_READ_SDMA_MEMORY_COR_ERR] = CNTR_ELEM("TxReadSdmaMemoryCorErr", 0, 0, 4787 CNTR_NORMAL, 4788 access_tx_read_sdma_memory_cor_err_cnt), 4789 [C_TX_SB_HDR_COR_ERR] = CNTR_ELEM("TxSbHdrCorErr", 0, 0, 4790 CNTR_NORMAL, 4791 access_tx_sb_hdr_cor_err_cnt), 4792 [C_TX_CREDIT_OVERRUN_ERR] = CNTR_ELEM("TxCreditOverrunErr", 0, 0, 4793 CNTR_NORMAL, 4794 access_tx_credit_overrun_err_cnt), 4795 [C_TX_LAUNCH_FIFO8_COR_ERR] = CNTR_ELEM("TxLaunchFifo8CorErr", 0, 0, 4796 CNTR_NORMAL, 4797 access_tx_launch_fifo8_cor_err_cnt), 4798 [C_TX_LAUNCH_FIFO7_COR_ERR] = CNTR_ELEM("TxLaunchFifo7CorErr", 0, 0, 4799 CNTR_NORMAL, 4800 access_tx_launch_fifo7_cor_err_cnt), 4801 [C_TX_LAUNCH_FIFO6_COR_ERR] = CNTR_ELEM("TxLaunchFifo6CorErr", 0, 0, 4802 CNTR_NORMAL, 4803 access_tx_launch_fifo6_cor_err_cnt), 4804 [C_TX_LAUNCH_FIFO5_COR_ERR] = CNTR_ELEM("TxLaunchFifo5CorErr", 0, 0, 4805 CNTR_NORMAL, 4806 access_tx_launch_fifo5_cor_err_cnt), 4807 [C_TX_LAUNCH_FIFO4_COR_ERR] = CNTR_ELEM("TxLaunchFifo4CorErr", 0, 0, 4808 CNTR_NORMAL, 4809 access_tx_launch_fifo4_cor_err_cnt), 4810 [C_TX_LAUNCH_FIFO3_COR_ERR] = CNTR_ELEM("TxLaunchFifo3CorErr", 0, 0, 4811 CNTR_NORMAL, 4812 access_tx_launch_fifo3_cor_err_cnt), 4813 [C_TX_LAUNCH_FIFO2_COR_ERR] = CNTR_ELEM("TxLaunchFifo2CorErr", 0, 0, 4814 CNTR_NORMAL, 4815 access_tx_launch_fifo2_cor_err_cnt), 4816 [C_TX_LAUNCH_FIFO1_COR_ERR] = CNTR_ELEM("TxLaunchFifo1CorErr", 0, 0, 4817 CNTR_NORMAL, 4818 access_tx_launch_fifo1_cor_err_cnt), 4819 [C_TX_LAUNCH_FIFO0_COR_ERR] = CNTR_ELEM("TxLaunchFifo0CorErr", 0, 0, 4820 CNTR_NORMAL, 4821 access_tx_launch_fifo0_cor_err_cnt), 4822 [C_TX_CREDIT_RETURN_VL_ERR] = CNTR_ELEM("TxCreditReturnVLErr", 0, 0, 4823 CNTR_NORMAL, 4824 access_tx_credit_return_vl_err_cnt), 4825 [C_TX_HCRC_INSERTION_ERR] = CNTR_ELEM("TxHcrcInsertionErr", 0, 0, 4826 CNTR_NORMAL, 4827 access_tx_hcrc_insertion_err_cnt), 4828 [C_TX_EGRESS_FIFI_UNC_ERR] = CNTR_ELEM("TxEgressFifoUncErr", 0, 0, 4829 CNTR_NORMAL, 4830 access_tx_egress_fifo_unc_err_cnt), 4831 [C_TX_READ_PIO_MEMORY_UNC_ERR] = CNTR_ELEM("TxReadPioMemoryUncErr", 0, 0, 4832 CNTR_NORMAL, 4833 access_tx_read_pio_memory_unc_err_cnt), 4834 [C_TX_READ_SDMA_MEMORY_UNC_ERR] = CNTR_ELEM("TxReadSdmaMemoryUncErr", 0, 0, 4835 CNTR_NORMAL, 4836 access_tx_read_sdma_memory_unc_err_cnt), 4837 [C_TX_SB_HDR_UNC_ERR] = CNTR_ELEM("TxSbHdrUncErr", 0, 0, 4838 CNTR_NORMAL, 4839 access_tx_sb_hdr_unc_err_cnt), 4840 [C_TX_CREDIT_RETURN_PARITY_ERR] = CNTR_ELEM("TxCreditReturnParityErr", 0, 0, 4841 CNTR_NORMAL, 4842 access_tx_credit_return_partiy_err_cnt), 4843 [C_TX_LAUNCH_FIFO8_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo8UncOrParityErr", 4844 0, 0, CNTR_NORMAL, 4845 access_tx_launch_fifo8_unc_or_parity_err_cnt), 4846 [C_TX_LAUNCH_FIFO7_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo7UncOrParityErr", 4847 0, 0, CNTR_NORMAL, 4848 access_tx_launch_fifo7_unc_or_parity_err_cnt), 4849 [C_TX_LAUNCH_FIFO6_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo6UncOrParityErr", 4850 0, 0, CNTR_NORMAL, 4851 access_tx_launch_fifo6_unc_or_parity_err_cnt), 4852 [C_TX_LAUNCH_FIFO5_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo5UncOrParityErr", 4853 0, 0, CNTR_NORMAL, 4854 access_tx_launch_fifo5_unc_or_parity_err_cnt), 4855 [C_TX_LAUNCH_FIFO4_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo4UncOrParityErr", 4856 0, 0, CNTR_NORMAL, 4857 access_tx_launch_fifo4_unc_or_parity_err_cnt), 4858 [C_TX_LAUNCH_FIFO3_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo3UncOrParityErr", 4859 0, 0, CNTR_NORMAL, 4860 access_tx_launch_fifo3_unc_or_parity_err_cnt), 4861 [C_TX_LAUNCH_FIFO2_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo2UncOrParityErr", 4862 0, 0, CNTR_NORMAL, 4863 access_tx_launch_fifo2_unc_or_parity_err_cnt), 4864 [C_TX_LAUNCH_FIFO1_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo1UncOrParityErr", 4865 0, 0, CNTR_NORMAL, 4866 access_tx_launch_fifo1_unc_or_parity_err_cnt), 4867 [C_TX_LAUNCH_FIFO0_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo0UncOrParityErr", 4868 0, 0, CNTR_NORMAL, 4869 access_tx_launch_fifo0_unc_or_parity_err_cnt), 4870 [C_TX_SDMA15_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma15DisallowedPacketErr", 4871 0, 0, CNTR_NORMAL, 4872 access_tx_sdma15_disallowed_packet_err_cnt), 4873 [C_TX_SDMA14_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma14DisallowedPacketErr", 4874 0, 0, CNTR_NORMAL, 4875 access_tx_sdma14_disallowed_packet_err_cnt), 4876 [C_TX_SDMA13_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma13DisallowedPacketErr", 4877 0, 0, CNTR_NORMAL, 4878 access_tx_sdma13_disallowed_packet_err_cnt), 4879 [C_TX_SDMA12_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma12DisallowedPacketErr", 4880 0, 0, CNTR_NORMAL, 4881 access_tx_sdma12_disallowed_packet_err_cnt), 4882 [C_TX_SDMA11_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma11DisallowedPacketErr", 4883 0, 0, CNTR_NORMAL, 4884 access_tx_sdma11_disallowed_packet_err_cnt), 4885 [C_TX_SDMA10_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma10DisallowedPacketErr", 4886 0, 0, CNTR_NORMAL, 4887 access_tx_sdma10_disallowed_packet_err_cnt), 4888 [C_TX_SDMA9_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma9DisallowedPacketErr", 4889 0, 0, CNTR_NORMAL, 4890 access_tx_sdma9_disallowed_packet_err_cnt), 4891 [C_TX_SDMA8_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma8DisallowedPacketErr", 4892 0, 0, CNTR_NORMAL, 4893 access_tx_sdma8_disallowed_packet_err_cnt), 4894 [C_TX_SDMA7_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma7DisallowedPacketErr", 4895 0, 0, CNTR_NORMAL, 4896 access_tx_sdma7_disallowed_packet_err_cnt), 4897 [C_TX_SDMA6_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma6DisallowedPacketErr", 4898 0, 0, CNTR_NORMAL, 4899 access_tx_sdma6_disallowed_packet_err_cnt), 4900 [C_TX_SDMA5_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma5DisallowedPacketErr", 4901 0, 0, CNTR_NORMAL, 4902 access_tx_sdma5_disallowed_packet_err_cnt), 4903 [C_TX_SDMA4_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma4DisallowedPacketErr", 4904 0, 0, CNTR_NORMAL, 4905 access_tx_sdma4_disallowed_packet_err_cnt), 4906 [C_TX_SDMA3_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma3DisallowedPacketErr", 4907 0, 0, CNTR_NORMAL, 4908 access_tx_sdma3_disallowed_packet_err_cnt), 4909 [C_TX_SDMA2_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma2DisallowedPacketErr", 4910 0, 0, CNTR_NORMAL, 4911 access_tx_sdma2_disallowed_packet_err_cnt), 4912 [C_TX_SDMA1_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma1DisallowedPacketErr", 4913 0, 0, CNTR_NORMAL, 4914 access_tx_sdma1_disallowed_packet_err_cnt), 4915 [C_TX_SDMA0_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma0DisallowedPacketErr", 4916 0, 0, CNTR_NORMAL, 4917 access_tx_sdma0_disallowed_packet_err_cnt), 4918 [C_TX_CONFIG_PARITY_ERR] = CNTR_ELEM("TxConfigParityErr", 0, 0, 4919 CNTR_NORMAL, 4920 access_tx_config_parity_err_cnt), 4921 [C_TX_SBRD_CTL_CSR_PARITY_ERR] = CNTR_ELEM("TxSbrdCtlCsrParityErr", 0, 0, 4922 CNTR_NORMAL, 4923 access_tx_sbrd_ctl_csr_parity_err_cnt), 4924 [C_TX_LAUNCH_CSR_PARITY_ERR] = CNTR_ELEM("TxLaunchCsrParityErr", 0, 0, 4925 CNTR_NORMAL, 4926 access_tx_launch_csr_parity_err_cnt), 4927 [C_TX_ILLEGAL_CL_ERR] = CNTR_ELEM("TxIllegalVLErr", 0, 0, 4928 CNTR_NORMAL, 4929 access_tx_illegal_vl_err_cnt), 4930 [C_TX_SBRD_CTL_STATE_MACHINE_PARITY_ERR] = CNTR_ELEM( 4931 "TxSbrdCtlStateMachineParityErr", 0, 0, 4932 CNTR_NORMAL, 4933 access_tx_sbrd_ctl_state_machine_parity_err_cnt), 4934 [C_TX_RESERVED_10] = CNTR_ELEM("Tx Egress Reserved 10", 0, 0, 4935 CNTR_NORMAL, 4936 access_egress_reserved_10_err_cnt), 4937 [C_TX_RESERVED_9] = CNTR_ELEM("Tx Egress Reserved 9", 0, 0, 4938 CNTR_NORMAL, 4939 access_egress_reserved_9_err_cnt), 4940 [C_TX_SDMA_LAUNCH_INTF_PARITY_ERR] = CNTR_ELEM("TxSdmaLaunchIntfParityErr", 4941 0, 0, CNTR_NORMAL, 4942 access_tx_sdma_launch_intf_parity_err_cnt), 4943 [C_TX_PIO_LAUNCH_INTF_PARITY_ERR] = CNTR_ELEM("TxPioLaunchIntfParityErr", 0, 0, 4944 CNTR_NORMAL, 4945 access_tx_pio_launch_intf_parity_err_cnt), 4946 [C_TX_RESERVED_6] = CNTR_ELEM("Tx Egress Reserved 6", 0, 0, 4947 CNTR_NORMAL, 4948 access_egress_reserved_6_err_cnt), 4949 [C_TX_INCORRECT_LINK_STATE_ERR] = CNTR_ELEM("TxIncorrectLinkStateErr", 0, 0, 4950 CNTR_NORMAL, 4951 access_tx_incorrect_link_state_err_cnt), 4952 [C_TX_LINK_DOWN_ERR] = CNTR_ELEM("TxLinkdownErr", 0, 0, 4953 CNTR_NORMAL, 4954 access_tx_linkdown_err_cnt), 4955 [C_TX_EGRESS_FIFO_UNDERRUN_OR_PARITY_ERR] = CNTR_ELEM( 4956 "EgressFifoUnderrunOrParityErr", 0, 0, 4957 CNTR_NORMAL, 4958 access_tx_egress_fifi_underrun_or_parity_err_cnt), 4959 [C_TX_RESERVED_2] = CNTR_ELEM("Tx Egress Reserved 2", 0, 0, 4960 CNTR_NORMAL, 4961 access_egress_reserved_2_err_cnt), 4962 [C_TX_PKT_INTEGRITY_MEM_UNC_ERR] = CNTR_ELEM("TxPktIntegrityMemUncErr", 0, 0, 4963 CNTR_NORMAL, 4964 access_tx_pkt_integrity_mem_unc_err_cnt), 4965 [C_TX_PKT_INTEGRITY_MEM_COR_ERR] = CNTR_ELEM("TxPktIntegrityMemCorErr", 0, 0, 4966 CNTR_NORMAL, 4967 access_tx_pkt_integrity_mem_cor_err_cnt), 4968 /* SendErrStatus */ 4969 [C_SEND_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("SendCsrWriteBadAddrErr", 0, 0, 4970 CNTR_NORMAL, 4971 access_send_csr_write_bad_addr_err_cnt), 4972 [C_SEND_CSR_READ_BAD_ADD_ERR] = CNTR_ELEM("SendCsrReadBadAddrErr", 0, 0, 4973 CNTR_NORMAL, 4974 access_send_csr_read_bad_addr_err_cnt), 4975 [C_SEND_CSR_PARITY_ERR] = CNTR_ELEM("SendCsrParityErr", 0, 0, 4976 CNTR_NORMAL, 4977 access_send_csr_parity_cnt), 4978 /* SendCtxtErrStatus */ 4979 [C_PIO_WRITE_OUT_OF_BOUNDS_ERR] = CNTR_ELEM("PioWriteOutOfBoundsErr", 0, 0, 4980 CNTR_NORMAL, 4981 access_pio_write_out_of_bounds_err_cnt), 4982 [C_PIO_WRITE_OVERFLOW_ERR] = CNTR_ELEM("PioWriteOverflowErr", 0, 0, 4983 CNTR_NORMAL, 4984 access_pio_write_overflow_err_cnt), 4985 [C_PIO_WRITE_CROSSES_BOUNDARY_ERR] = CNTR_ELEM("PioWriteCrossesBoundaryErr", 4986 0, 0, CNTR_NORMAL, 4987 access_pio_write_crosses_boundary_err_cnt), 4988 [C_PIO_DISALLOWED_PACKET_ERR] = CNTR_ELEM("PioDisallowedPacketErr", 0, 0, 4989 CNTR_NORMAL, 4990 access_pio_disallowed_packet_err_cnt), 4991 [C_PIO_INCONSISTENT_SOP_ERR] = CNTR_ELEM("PioInconsistentSopErr", 0, 0, 4992 CNTR_NORMAL, 4993 access_pio_inconsistent_sop_err_cnt), 4994 /* SendDmaEngErrStatus */ 4995 [C_SDMA_HEADER_REQUEST_FIFO_COR_ERR] = CNTR_ELEM("SDmaHeaderRequestFifoCorErr", 4996 0, 0, CNTR_NORMAL, 4997 access_sdma_header_request_fifo_cor_err_cnt), 4998 [C_SDMA_HEADER_STORAGE_COR_ERR] = CNTR_ELEM("SDmaHeaderStorageCorErr", 0, 0, 4999 CNTR_NORMAL, 5000 access_sdma_header_storage_cor_err_cnt), 5001 [C_SDMA_PACKET_TRACKING_COR_ERR] = CNTR_ELEM("SDmaPacketTrackingCorErr", 0, 0, 5002 CNTR_NORMAL, 5003 access_sdma_packet_tracking_cor_err_cnt), 5004 [C_SDMA_ASSEMBLY_COR_ERR] = CNTR_ELEM("SDmaAssemblyCorErr", 0, 0, 5005 CNTR_NORMAL, 5006 access_sdma_assembly_cor_err_cnt), 5007 [C_SDMA_DESC_TABLE_COR_ERR] = CNTR_ELEM("SDmaDescTableCorErr", 0, 0, 5008 CNTR_NORMAL, 5009 access_sdma_desc_table_cor_err_cnt), 5010 [C_SDMA_HEADER_REQUEST_FIFO_UNC_ERR] = CNTR_ELEM("SDmaHeaderRequestFifoUncErr", 5011 0, 0, CNTR_NORMAL, 5012 access_sdma_header_request_fifo_unc_err_cnt), 5013 [C_SDMA_HEADER_STORAGE_UNC_ERR] = CNTR_ELEM("SDmaHeaderStorageUncErr", 0, 0, 5014 CNTR_NORMAL, 5015 access_sdma_header_storage_unc_err_cnt), 5016 [C_SDMA_PACKET_TRACKING_UNC_ERR] = CNTR_ELEM("SDmaPacketTrackingUncErr", 0, 0, 5017 CNTR_NORMAL, 5018 access_sdma_packet_tracking_unc_err_cnt), 5019 [C_SDMA_ASSEMBLY_UNC_ERR] = CNTR_ELEM("SDmaAssemblyUncErr", 0, 0, 5020 CNTR_NORMAL, 5021 access_sdma_assembly_unc_err_cnt), 5022 [C_SDMA_DESC_TABLE_UNC_ERR] = CNTR_ELEM("SDmaDescTableUncErr", 0, 0, 5023 CNTR_NORMAL, 5024 access_sdma_desc_table_unc_err_cnt), 5025 [C_SDMA_TIMEOUT_ERR] = CNTR_ELEM("SDmaTimeoutErr", 0, 0, 5026 CNTR_NORMAL, 5027 access_sdma_timeout_err_cnt), 5028 [C_SDMA_HEADER_LENGTH_ERR] = CNTR_ELEM("SDmaHeaderLengthErr", 0, 0, 5029 CNTR_NORMAL, 5030 access_sdma_header_length_err_cnt), 5031 [C_SDMA_HEADER_ADDRESS_ERR] = CNTR_ELEM("SDmaHeaderAddressErr", 0, 0, 5032 CNTR_NORMAL, 5033 access_sdma_header_address_err_cnt), 5034 [C_SDMA_HEADER_SELECT_ERR] = CNTR_ELEM("SDmaHeaderSelectErr", 0, 0, 5035 CNTR_NORMAL, 5036 access_sdma_header_select_err_cnt), 5037 [C_SMDA_RESERVED_9] = CNTR_ELEM("SDma Reserved 9", 0, 0, 5038 CNTR_NORMAL, 5039 access_sdma_reserved_9_err_cnt), 5040 [C_SDMA_PACKET_DESC_OVERFLOW_ERR] = CNTR_ELEM("SDmaPacketDescOverflowErr", 0, 0, 5041 CNTR_NORMAL, 5042 access_sdma_packet_desc_overflow_err_cnt), 5043 [C_SDMA_LENGTH_MISMATCH_ERR] = CNTR_ELEM("SDmaLengthMismatchErr", 0, 0, 5044 CNTR_NORMAL, 5045 access_sdma_length_mismatch_err_cnt), 5046 [C_SDMA_HALT_ERR] = CNTR_ELEM("SDmaHaltErr", 0, 0, 5047 CNTR_NORMAL, 5048 access_sdma_halt_err_cnt), 5049 [C_SDMA_MEM_READ_ERR] = CNTR_ELEM("SDmaMemReadErr", 0, 0, 5050 CNTR_NORMAL, 5051 access_sdma_mem_read_err_cnt), 5052 [C_SDMA_FIRST_DESC_ERR] = CNTR_ELEM("SDmaFirstDescErr", 0, 0, 5053 CNTR_NORMAL, 5054 access_sdma_first_desc_err_cnt), 5055 [C_SDMA_TAIL_OUT_OF_BOUNDS_ERR] = CNTR_ELEM("SDmaTailOutOfBoundsErr", 0, 0, 5056 CNTR_NORMAL, 5057 access_sdma_tail_out_of_bounds_err_cnt), 5058 [C_SDMA_TOO_LONG_ERR] = CNTR_ELEM("SDmaTooLongErr", 0, 0, 5059 CNTR_NORMAL, 5060 access_sdma_too_long_err_cnt), 5061 [C_SDMA_GEN_MISMATCH_ERR] = CNTR_ELEM("SDmaGenMismatchErr", 0, 0, 5062 CNTR_NORMAL, 5063 access_sdma_gen_mismatch_err_cnt), 5064 [C_SDMA_WRONG_DW_ERR] = CNTR_ELEM("SDmaWrongDwErr", 0, 0, 5065 CNTR_NORMAL, 5066 access_sdma_wrong_dw_err_cnt), 5067 }; 5068 5069 static struct cntr_entry port_cntrs[PORT_CNTR_LAST] = { 5070 [C_TX_UNSUP_VL] = TXE32_PORT_CNTR_ELEM(TxUnVLErr, SEND_UNSUP_VL_ERR_CNT, 5071 CNTR_NORMAL), 5072 [C_TX_INVAL_LEN] = TXE32_PORT_CNTR_ELEM(TxInvalLen, SEND_LEN_ERR_CNT, 5073 CNTR_NORMAL), 5074 [C_TX_MM_LEN_ERR] = TXE32_PORT_CNTR_ELEM(TxMMLenErr, SEND_MAX_MIN_LEN_ERR_CNT, 5075 CNTR_NORMAL), 5076 [C_TX_UNDERRUN] = TXE32_PORT_CNTR_ELEM(TxUnderrun, SEND_UNDERRUN_CNT, 5077 CNTR_NORMAL), 5078 [C_TX_FLOW_STALL] = TXE32_PORT_CNTR_ELEM(TxFlowStall, SEND_FLOW_STALL_CNT, 5079 CNTR_NORMAL), 5080 [C_TX_DROPPED] = TXE32_PORT_CNTR_ELEM(TxDropped, SEND_DROPPED_PKT_CNT, 5081 CNTR_NORMAL), 5082 [C_TX_HDR_ERR] = TXE32_PORT_CNTR_ELEM(TxHdrErr, SEND_HEADERS_ERR_CNT, 5083 CNTR_NORMAL), 5084 [C_TX_PKT] = TXE64_PORT_CNTR_ELEM(TxPkt, SEND_DATA_PKT_CNT, CNTR_NORMAL), 5085 [C_TX_WORDS] = TXE64_PORT_CNTR_ELEM(TxWords, SEND_DWORD_CNT, CNTR_NORMAL), 5086 [C_TX_WAIT] = TXE64_PORT_CNTR_ELEM(TxWait, SEND_WAIT_CNT, CNTR_SYNTH), 5087 [C_TX_FLIT_VL] = TXE64_PORT_CNTR_ELEM(TxFlitVL, SEND_DATA_VL0_CNT, 5088 CNTR_SYNTH | CNTR_VL), 5089 [C_TX_PKT_VL] = TXE64_PORT_CNTR_ELEM(TxPktVL, SEND_DATA_PKT_VL0_CNT, 5090 CNTR_SYNTH | CNTR_VL), 5091 [C_TX_WAIT_VL] = TXE64_PORT_CNTR_ELEM(TxWaitVL, SEND_WAIT_VL0_CNT, 5092 CNTR_SYNTH | CNTR_VL), 5093 [C_RX_PKT] = RXE64_PORT_CNTR_ELEM(RxPkt, RCV_DATA_PKT_CNT, CNTR_NORMAL), 5094 [C_RX_WORDS] = RXE64_PORT_CNTR_ELEM(RxWords, RCV_DWORD_CNT, CNTR_NORMAL), 5095 [C_SW_LINK_DOWN] = CNTR_ELEM("SwLinkDown", 0, 0, CNTR_SYNTH | CNTR_32BIT, 5096 access_sw_link_dn_cnt), 5097 [C_SW_LINK_UP] = CNTR_ELEM("SwLinkUp", 0, 0, CNTR_SYNTH | CNTR_32BIT, 5098 access_sw_link_up_cnt), 5099 [C_SW_UNKNOWN_FRAME] = CNTR_ELEM("UnknownFrame", 0, 0, CNTR_NORMAL, 5100 access_sw_unknown_frame_cnt), 5101 [C_SW_XMIT_DSCD] = CNTR_ELEM("XmitDscd", 0, 0, CNTR_SYNTH | CNTR_32BIT, 5102 access_sw_xmit_discards), 5103 [C_SW_XMIT_DSCD_VL] = CNTR_ELEM("XmitDscdVl", 0, 0, 5104 CNTR_SYNTH | CNTR_32BIT | CNTR_VL, 5105 access_sw_xmit_discards), 5106 [C_SW_XMIT_CSTR_ERR] = CNTR_ELEM("XmitCstrErr", 0, 0, CNTR_SYNTH, 5107 access_xmit_constraint_errs), 5108 [C_SW_RCV_CSTR_ERR] = CNTR_ELEM("RcvCstrErr", 0, 0, CNTR_SYNTH, 5109 access_rcv_constraint_errs), 5110 [C_SW_IBP_LOOP_PKTS] = SW_IBP_CNTR(LoopPkts, loop_pkts), 5111 [C_SW_IBP_RC_RESENDS] = SW_IBP_CNTR(RcResend, rc_resends), 5112 [C_SW_IBP_RNR_NAKS] = SW_IBP_CNTR(RnrNak, rnr_naks), 5113 [C_SW_IBP_OTHER_NAKS] = SW_IBP_CNTR(OtherNak, other_naks), 5114 [C_SW_IBP_RC_TIMEOUTS] = SW_IBP_CNTR(RcTimeOut, rc_timeouts), 5115 [C_SW_IBP_PKT_DROPS] = SW_IBP_CNTR(PktDrop, pkt_drops), 5116 [C_SW_IBP_DMA_WAIT] = SW_IBP_CNTR(DmaWait, dmawait), 5117 [C_SW_IBP_RC_SEQNAK] = SW_IBP_CNTR(RcSeqNak, rc_seqnak), 5118 [C_SW_IBP_RC_DUPREQ] = SW_IBP_CNTR(RcDupRew, rc_dupreq), 5119 [C_SW_IBP_RDMA_SEQ] = SW_IBP_CNTR(RdmaSeq, rdma_seq), 5120 [C_SW_IBP_UNALIGNED] = SW_IBP_CNTR(Unaligned, unaligned), 5121 [C_SW_IBP_SEQ_NAK] = SW_IBP_CNTR(SeqNak, seq_naks), 5122 [C_SW_CPU_RC_ACKS] = CNTR_ELEM("RcAcks", 0, 0, CNTR_NORMAL, 5123 access_sw_cpu_rc_acks), 5124 [C_SW_CPU_RC_QACKS] = CNTR_ELEM("RcQacks", 0, 0, CNTR_NORMAL, 5125 access_sw_cpu_rc_qacks), 5126 [C_SW_CPU_RC_DELAYED_COMP] = CNTR_ELEM("RcDelayComp", 0, 0, CNTR_NORMAL, 5127 access_sw_cpu_rc_delayed_comp), 5128 [OVR_LBL(0)] = OVR_ELM(0), [OVR_LBL(1)] = OVR_ELM(1), 5129 [OVR_LBL(2)] = OVR_ELM(2), [OVR_LBL(3)] = OVR_ELM(3), 5130 [OVR_LBL(4)] = OVR_ELM(4), [OVR_LBL(5)] = OVR_ELM(5), 5131 [OVR_LBL(6)] = OVR_ELM(6), [OVR_LBL(7)] = OVR_ELM(7), 5132 [OVR_LBL(8)] = OVR_ELM(8), [OVR_LBL(9)] = OVR_ELM(9), 5133 [OVR_LBL(10)] = OVR_ELM(10), [OVR_LBL(11)] = OVR_ELM(11), 5134 [OVR_LBL(12)] = OVR_ELM(12), [OVR_LBL(13)] = OVR_ELM(13), 5135 [OVR_LBL(14)] = OVR_ELM(14), [OVR_LBL(15)] = OVR_ELM(15), 5136 [OVR_LBL(16)] = OVR_ELM(16), [OVR_LBL(17)] = OVR_ELM(17), 5137 [OVR_LBL(18)] = OVR_ELM(18), [OVR_LBL(19)] = OVR_ELM(19), 5138 [OVR_LBL(20)] = OVR_ELM(20), [OVR_LBL(21)] = OVR_ELM(21), 5139 [OVR_LBL(22)] = OVR_ELM(22), [OVR_LBL(23)] = OVR_ELM(23), 5140 [OVR_LBL(24)] = OVR_ELM(24), [OVR_LBL(25)] = OVR_ELM(25), 5141 [OVR_LBL(26)] = OVR_ELM(26), [OVR_LBL(27)] = OVR_ELM(27), 5142 [OVR_LBL(28)] = OVR_ELM(28), [OVR_LBL(29)] = OVR_ELM(29), 5143 [OVR_LBL(30)] = OVR_ELM(30), [OVR_LBL(31)] = OVR_ELM(31), 5144 [OVR_LBL(32)] = OVR_ELM(32), [OVR_LBL(33)] = OVR_ELM(33), 5145 [OVR_LBL(34)] = OVR_ELM(34), [OVR_LBL(35)] = OVR_ELM(35), 5146 [OVR_LBL(36)] = OVR_ELM(36), [OVR_LBL(37)] = OVR_ELM(37), 5147 [OVR_LBL(38)] = OVR_ELM(38), [OVR_LBL(39)] = OVR_ELM(39), 5148 [OVR_LBL(40)] = OVR_ELM(40), [OVR_LBL(41)] = OVR_ELM(41), 5149 [OVR_LBL(42)] = OVR_ELM(42), [OVR_LBL(43)] = OVR_ELM(43), 5150 [OVR_LBL(44)] = OVR_ELM(44), [OVR_LBL(45)] = OVR_ELM(45), 5151 [OVR_LBL(46)] = OVR_ELM(46), [OVR_LBL(47)] = OVR_ELM(47), 5152 [OVR_LBL(48)] = OVR_ELM(48), [OVR_LBL(49)] = OVR_ELM(49), 5153 [OVR_LBL(50)] = OVR_ELM(50), [OVR_LBL(51)] = OVR_ELM(51), 5154 [OVR_LBL(52)] = OVR_ELM(52), [OVR_LBL(53)] = OVR_ELM(53), 5155 [OVR_LBL(54)] = OVR_ELM(54), [OVR_LBL(55)] = OVR_ELM(55), 5156 [OVR_LBL(56)] = OVR_ELM(56), [OVR_LBL(57)] = OVR_ELM(57), 5157 [OVR_LBL(58)] = OVR_ELM(58), [OVR_LBL(59)] = OVR_ELM(59), 5158 [OVR_LBL(60)] = OVR_ELM(60), [OVR_LBL(61)] = OVR_ELM(61), 5159 [OVR_LBL(62)] = OVR_ELM(62), [OVR_LBL(63)] = OVR_ELM(63), 5160 [OVR_LBL(64)] = OVR_ELM(64), [OVR_LBL(65)] = OVR_ELM(65), 5161 [OVR_LBL(66)] = OVR_ELM(66), [OVR_LBL(67)] = OVR_ELM(67), 5162 [OVR_LBL(68)] = OVR_ELM(68), [OVR_LBL(69)] = OVR_ELM(69), 5163 [OVR_LBL(70)] = OVR_ELM(70), [OVR_LBL(71)] = OVR_ELM(71), 5164 [OVR_LBL(72)] = OVR_ELM(72), [OVR_LBL(73)] = OVR_ELM(73), 5165 [OVR_LBL(74)] = OVR_ELM(74), [OVR_LBL(75)] = OVR_ELM(75), 5166 [OVR_LBL(76)] = OVR_ELM(76), [OVR_LBL(77)] = OVR_ELM(77), 5167 [OVR_LBL(78)] = OVR_ELM(78), [OVR_LBL(79)] = OVR_ELM(79), 5168 [OVR_LBL(80)] = OVR_ELM(80), [OVR_LBL(81)] = OVR_ELM(81), 5169 [OVR_LBL(82)] = OVR_ELM(82), [OVR_LBL(83)] = OVR_ELM(83), 5170 [OVR_LBL(84)] = OVR_ELM(84), [OVR_LBL(85)] = OVR_ELM(85), 5171 [OVR_LBL(86)] = OVR_ELM(86), [OVR_LBL(87)] = OVR_ELM(87), 5172 [OVR_LBL(88)] = OVR_ELM(88), [OVR_LBL(89)] = OVR_ELM(89), 5173 [OVR_LBL(90)] = OVR_ELM(90), [OVR_LBL(91)] = OVR_ELM(91), 5174 [OVR_LBL(92)] = OVR_ELM(92), [OVR_LBL(93)] = OVR_ELM(93), 5175 [OVR_LBL(94)] = OVR_ELM(94), [OVR_LBL(95)] = OVR_ELM(95), 5176 [OVR_LBL(96)] = OVR_ELM(96), [OVR_LBL(97)] = OVR_ELM(97), 5177 [OVR_LBL(98)] = OVR_ELM(98), [OVR_LBL(99)] = OVR_ELM(99), 5178 [OVR_LBL(100)] = OVR_ELM(100), [OVR_LBL(101)] = OVR_ELM(101), 5179 [OVR_LBL(102)] = OVR_ELM(102), [OVR_LBL(103)] = OVR_ELM(103), 5180 [OVR_LBL(104)] = OVR_ELM(104), [OVR_LBL(105)] = OVR_ELM(105), 5181 [OVR_LBL(106)] = OVR_ELM(106), [OVR_LBL(107)] = OVR_ELM(107), 5182 [OVR_LBL(108)] = OVR_ELM(108), [OVR_LBL(109)] = OVR_ELM(109), 5183 [OVR_LBL(110)] = OVR_ELM(110), [OVR_LBL(111)] = OVR_ELM(111), 5184 [OVR_LBL(112)] = OVR_ELM(112), [OVR_LBL(113)] = OVR_ELM(113), 5185 [OVR_LBL(114)] = OVR_ELM(114), [OVR_LBL(115)] = OVR_ELM(115), 5186 [OVR_LBL(116)] = OVR_ELM(116), [OVR_LBL(117)] = OVR_ELM(117), 5187 [OVR_LBL(118)] = OVR_ELM(118), [OVR_LBL(119)] = OVR_ELM(119), 5188 [OVR_LBL(120)] = OVR_ELM(120), [OVR_LBL(121)] = OVR_ELM(121), 5189 [OVR_LBL(122)] = OVR_ELM(122), [OVR_LBL(123)] = OVR_ELM(123), 5190 [OVR_LBL(124)] = OVR_ELM(124), [OVR_LBL(125)] = OVR_ELM(125), 5191 [OVR_LBL(126)] = OVR_ELM(126), [OVR_LBL(127)] = OVR_ELM(127), 5192 [OVR_LBL(128)] = OVR_ELM(128), [OVR_LBL(129)] = OVR_ELM(129), 5193 [OVR_LBL(130)] = OVR_ELM(130), [OVR_LBL(131)] = OVR_ELM(131), 5194 [OVR_LBL(132)] = OVR_ELM(132), [OVR_LBL(133)] = OVR_ELM(133), 5195 [OVR_LBL(134)] = OVR_ELM(134), [OVR_LBL(135)] = OVR_ELM(135), 5196 [OVR_LBL(136)] = OVR_ELM(136), [OVR_LBL(137)] = OVR_ELM(137), 5197 [OVR_LBL(138)] = OVR_ELM(138), [OVR_LBL(139)] = OVR_ELM(139), 5198 [OVR_LBL(140)] = OVR_ELM(140), [OVR_LBL(141)] = OVR_ELM(141), 5199 [OVR_LBL(142)] = OVR_ELM(142), [OVR_LBL(143)] = OVR_ELM(143), 5200 [OVR_LBL(144)] = OVR_ELM(144), [OVR_LBL(145)] = OVR_ELM(145), 5201 [OVR_LBL(146)] = OVR_ELM(146), [OVR_LBL(147)] = OVR_ELM(147), 5202 [OVR_LBL(148)] = OVR_ELM(148), [OVR_LBL(149)] = OVR_ELM(149), 5203 [OVR_LBL(150)] = OVR_ELM(150), [OVR_LBL(151)] = OVR_ELM(151), 5204 [OVR_LBL(152)] = OVR_ELM(152), [OVR_LBL(153)] = OVR_ELM(153), 5205 [OVR_LBL(154)] = OVR_ELM(154), [OVR_LBL(155)] = OVR_ELM(155), 5206 [OVR_LBL(156)] = OVR_ELM(156), [OVR_LBL(157)] = OVR_ELM(157), 5207 [OVR_LBL(158)] = OVR_ELM(158), [OVR_LBL(159)] = OVR_ELM(159), 5208 }; 5209 5210 /* ======================================================================== */ 5211 5212 /* return true if this is chip revision revision a */ 5213 int is_ax(struct hfi1_devdata *dd) 5214 { 5215 u8 chip_rev_minor = 5216 dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT 5217 & CCE_REVISION_CHIP_REV_MINOR_MASK; 5218 return (chip_rev_minor & 0xf0) == 0; 5219 } 5220 5221 /* return true if this is chip revision revision b */ 5222 int is_bx(struct hfi1_devdata *dd) 5223 { 5224 u8 chip_rev_minor = 5225 dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT 5226 & CCE_REVISION_CHIP_REV_MINOR_MASK; 5227 return (chip_rev_minor & 0xF0) == 0x10; 5228 } 5229 5230 /* return true is kernel urg disabled for rcd */ 5231 bool is_urg_masked(struct hfi1_ctxtdata *rcd) 5232 { 5233 u64 mask; 5234 u32 is = IS_RCVURGENT_START + rcd->ctxt; 5235 u8 bit = is % 64; 5236 5237 mask = read_csr(rcd->dd, CCE_INT_MASK + (8 * (is / 64))); 5238 return !(mask & BIT_ULL(bit)); 5239 } 5240 5241 /* 5242 * Append string s to buffer buf. Arguments curp and len are the current 5243 * position and remaining length, respectively. 5244 * 5245 * return 0 on success, 1 on out of room 5246 */ 5247 static int append_str(char *buf, char **curp, int *lenp, const char *s) 5248 { 5249 char *p = *curp; 5250 int len = *lenp; 5251 int result = 0; /* success */ 5252 char c; 5253 5254 /* add a comma, if first in the buffer */ 5255 if (p != buf) { 5256 if (len == 0) { 5257 result = 1; /* out of room */ 5258 goto done; 5259 } 5260 *p++ = ','; 5261 len--; 5262 } 5263 5264 /* copy the string */ 5265 while ((c = *s++) != 0) { 5266 if (len == 0) { 5267 result = 1; /* out of room */ 5268 goto done; 5269 } 5270 *p++ = c; 5271 len--; 5272 } 5273 5274 done: 5275 /* write return values */ 5276 *curp = p; 5277 *lenp = len; 5278 5279 return result; 5280 } 5281 5282 /* 5283 * Using the given flag table, print a comma separated string into 5284 * the buffer. End in '*' if the buffer is too short. 5285 */ 5286 static char *flag_string(char *buf, int buf_len, u64 flags, 5287 struct flag_table *table, int table_size) 5288 { 5289 char extra[32]; 5290 char *p = buf; 5291 int len = buf_len; 5292 int no_room = 0; 5293 int i; 5294 5295 /* make sure there is at least 2 so we can form "*" */ 5296 if (len < 2) 5297 return ""; 5298 5299 len--; /* leave room for a nul */ 5300 for (i = 0; i < table_size; i++) { 5301 if (flags & table[i].flag) { 5302 no_room = append_str(buf, &p, &len, table[i].str); 5303 if (no_room) 5304 break; 5305 flags &= ~table[i].flag; 5306 } 5307 } 5308 5309 /* any undocumented bits left? */ 5310 if (!no_room && flags) { 5311 snprintf(extra, sizeof(extra), "bits 0x%llx", flags); 5312 no_room = append_str(buf, &p, &len, extra); 5313 } 5314 5315 /* add * if ran out of room */ 5316 if (no_room) { 5317 /* may need to back up to add space for a '*' */ 5318 if (len == 0) 5319 --p; 5320 *p++ = '*'; 5321 } 5322 5323 /* add final nul - space already allocated above */ 5324 *p = 0; 5325 return buf; 5326 } 5327 5328 /* first 8 CCE error interrupt source names */ 5329 static const char * const cce_misc_names[] = { 5330 "CceErrInt", /* 0 */ 5331 "RxeErrInt", /* 1 */ 5332 "MiscErrInt", /* 2 */ 5333 "Reserved3", /* 3 */ 5334 "PioErrInt", /* 4 */ 5335 "SDmaErrInt", /* 5 */ 5336 "EgressErrInt", /* 6 */ 5337 "TxeErrInt" /* 7 */ 5338 }; 5339 5340 /* 5341 * Return the miscellaneous error interrupt name. 5342 */ 5343 static char *is_misc_err_name(char *buf, size_t bsize, unsigned int source) 5344 { 5345 if (source < ARRAY_SIZE(cce_misc_names)) 5346 strncpy(buf, cce_misc_names[source], bsize); 5347 else 5348 snprintf(buf, bsize, "Reserved%u", 5349 source + IS_GENERAL_ERR_START); 5350 5351 return buf; 5352 } 5353 5354 /* 5355 * Return the SDMA engine error interrupt name. 5356 */ 5357 static char *is_sdma_eng_err_name(char *buf, size_t bsize, unsigned int source) 5358 { 5359 snprintf(buf, bsize, "SDmaEngErrInt%u", source); 5360 return buf; 5361 } 5362 5363 /* 5364 * Return the send context error interrupt name. 5365 */ 5366 static char *is_sendctxt_err_name(char *buf, size_t bsize, unsigned int source) 5367 { 5368 snprintf(buf, bsize, "SendCtxtErrInt%u", source); 5369 return buf; 5370 } 5371 5372 static const char * const various_names[] = { 5373 "PbcInt", 5374 "GpioAssertInt", 5375 "Qsfp1Int", 5376 "Qsfp2Int", 5377 "TCritInt" 5378 }; 5379 5380 /* 5381 * Return the various interrupt name. 5382 */ 5383 static char *is_various_name(char *buf, size_t bsize, unsigned int source) 5384 { 5385 if (source < ARRAY_SIZE(various_names)) 5386 strncpy(buf, various_names[source], bsize); 5387 else 5388 snprintf(buf, bsize, "Reserved%u", source + IS_VARIOUS_START); 5389 return buf; 5390 } 5391 5392 /* 5393 * Return the DC interrupt name. 5394 */ 5395 static char *is_dc_name(char *buf, size_t bsize, unsigned int source) 5396 { 5397 static const char * const dc_int_names[] = { 5398 "common", 5399 "lcb", 5400 "8051", 5401 "lbm" /* local block merge */ 5402 }; 5403 5404 if (source < ARRAY_SIZE(dc_int_names)) 5405 snprintf(buf, bsize, "dc_%s_int", dc_int_names[source]); 5406 else 5407 snprintf(buf, bsize, "DCInt%u", source); 5408 return buf; 5409 } 5410 5411 static const char * const sdma_int_names[] = { 5412 "SDmaInt", 5413 "SdmaIdleInt", 5414 "SdmaProgressInt", 5415 }; 5416 5417 /* 5418 * Return the SDMA engine interrupt name. 5419 */ 5420 static char *is_sdma_eng_name(char *buf, size_t bsize, unsigned int source) 5421 { 5422 /* what interrupt */ 5423 unsigned int what = source / TXE_NUM_SDMA_ENGINES; 5424 /* which engine */ 5425 unsigned int which = source % TXE_NUM_SDMA_ENGINES; 5426 5427 if (likely(what < 3)) 5428 snprintf(buf, bsize, "%s%u", sdma_int_names[what], which); 5429 else 5430 snprintf(buf, bsize, "Invalid SDMA interrupt %u", source); 5431 return buf; 5432 } 5433 5434 /* 5435 * Return the receive available interrupt name. 5436 */ 5437 static char *is_rcv_avail_name(char *buf, size_t bsize, unsigned int source) 5438 { 5439 snprintf(buf, bsize, "RcvAvailInt%u", source); 5440 return buf; 5441 } 5442 5443 /* 5444 * Return the receive urgent interrupt name. 5445 */ 5446 static char *is_rcv_urgent_name(char *buf, size_t bsize, unsigned int source) 5447 { 5448 snprintf(buf, bsize, "RcvUrgentInt%u", source); 5449 return buf; 5450 } 5451 5452 /* 5453 * Return the send credit interrupt name. 5454 */ 5455 static char *is_send_credit_name(char *buf, size_t bsize, unsigned int source) 5456 { 5457 snprintf(buf, bsize, "SendCreditInt%u", source); 5458 return buf; 5459 } 5460 5461 /* 5462 * Return the reserved interrupt name. 5463 */ 5464 static char *is_reserved_name(char *buf, size_t bsize, unsigned int source) 5465 { 5466 snprintf(buf, bsize, "Reserved%u", source + IS_RESERVED_START); 5467 return buf; 5468 } 5469 5470 static char *cce_err_status_string(char *buf, int buf_len, u64 flags) 5471 { 5472 return flag_string(buf, buf_len, flags, 5473 cce_err_status_flags, 5474 ARRAY_SIZE(cce_err_status_flags)); 5475 } 5476 5477 static char *rxe_err_status_string(char *buf, int buf_len, u64 flags) 5478 { 5479 return flag_string(buf, buf_len, flags, 5480 rxe_err_status_flags, 5481 ARRAY_SIZE(rxe_err_status_flags)); 5482 } 5483 5484 static char *misc_err_status_string(char *buf, int buf_len, u64 flags) 5485 { 5486 return flag_string(buf, buf_len, flags, misc_err_status_flags, 5487 ARRAY_SIZE(misc_err_status_flags)); 5488 } 5489 5490 static char *pio_err_status_string(char *buf, int buf_len, u64 flags) 5491 { 5492 return flag_string(buf, buf_len, flags, 5493 pio_err_status_flags, 5494 ARRAY_SIZE(pio_err_status_flags)); 5495 } 5496 5497 static char *sdma_err_status_string(char *buf, int buf_len, u64 flags) 5498 { 5499 return flag_string(buf, buf_len, flags, 5500 sdma_err_status_flags, 5501 ARRAY_SIZE(sdma_err_status_flags)); 5502 } 5503 5504 static char *egress_err_status_string(char *buf, int buf_len, u64 flags) 5505 { 5506 return flag_string(buf, buf_len, flags, 5507 egress_err_status_flags, 5508 ARRAY_SIZE(egress_err_status_flags)); 5509 } 5510 5511 static char *egress_err_info_string(char *buf, int buf_len, u64 flags) 5512 { 5513 return flag_string(buf, buf_len, flags, 5514 egress_err_info_flags, 5515 ARRAY_SIZE(egress_err_info_flags)); 5516 } 5517 5518 static char *send_err_status_string(char *buf, int buf_len, u64 flags) 5519 { 5520 return flag_string(buf, buf_len, flags, 5521 send_err_status_flags, 5522 ARRAY_SIZE(send_err_status_flags)); 5523 } 5524 5525 static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5526 { 5527 char buf[96]; 5528 int i = 0; 5529 5530 /* 5531 * For most these errors, there is nothing that can be done except 5532 * report or record it. 5533 */ 5534 dd_dev_info(dd, "CCE Error: %s\n", 5535 cce_err_status_string(buf, sizeof(buf), reg)); 5536 5537 if ((reg & CCE_ERR_STATUS_CCE_CLI2_ASYNC_FIFO_PARITY_ERR_SMASK) && 5538 is_ax(dd) && (dd->icode != ICODE_FUNCTIONAL_SIMULATOR)) { 5539 /* this error requires a manual drop into SPC freeze mode */ 5540 /* then a fix up */ 5541 start_freeze_handling(dd->pport, FREEZE_SELF); 5542 } 5543 5544 for (i = 0; i < NUM_CCE_ERR_STATUS_COUNTERS; i++) { 5545 if (reg & (1ull << i)) { 5546 incr_cntr64(&dd->cce_err_status_cnt[i]); 5547 /* maintain a counter over all cce_err_status errors */ 5548 incr_cntr64(&dd->sw_cce_err_status_aggregate); 5549 } 5550 } 5551 } 5552 5553 /* 5554 * Check counters for receive errors that do not have an interrupt 5555 * associated with them. 5556 */ 5557 #define RCVERR_CHECK_TIME 10 5558 static void update_rcverr_timer(struct timer_list *t) 5559 { 5560 struct hfi1_devdata *dd = from_timer(dd, t, rcverr_timer); 5561 struct hfi1_pportdata *ppd = dd->pport; 5562 u32 cur_ovfl_cnt = read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL); 5563 5564 if (dd->rcv_ovfl_cnt < cur_ovfl_cnt && 5565 ppd->port_error_action & OPA_PI_MASK_EX_BUFFER_OVERRUN) { 5566 dd_dev_info(dd, "%s: PortErrorAction bounce\n", __func__); 5567 set_link_down_reason( 5568 ppd, OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN, 0, 5569 OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN); 5570 queue_work(ppd->link_wq, &ppd->link_bounce_work); 5571 } 5572 dd->rcv_ovfl_cnt = (u32)cur_ovfl_cnt; 5573 5574 mod_timer(&dd->rcverr_timer, jiffies + HZ * RCVERR_CHECK_TIME); 5575 } 5576 5577 static int init_rcverr(struct hfi1_devdata *dd) 5578 { 5579 timer_setup(&dd->rcverr_timer, update_rcverr_timer, 0); 5580 /* Assume the hardware counter has been reset */ 5581 dd->rcv_ovfl_cnt = 0; 5582 return mod_timer(&dd->rcverr_timer, jiffies + HZ * RCVERR_CHECK_TIME); 5583 } 5584 5585 static void free_rcverr(struct hfi1_devdata *dd) 5586 { 5587 if (dd->rcverr_timer.function) 5588 del_timer_sync(&dd->rcverr_timer); 5589 } 5590 5591 static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5592 { 5593 char buf[96]; 5594 int i = 0; 5595 5596 dd_dev_info(dd, "Receive Error: %s\n", 5597 rxe_err_status_string(buf, sizeof(buf), reg)); 5598 5599 if (reg & ALL_RXE_FREEZE_ERR) { 5600 int flags = 0; 5601 5602 /* 5603 * Freeze mode recovery is disabled for the errors 5604 * in RXE_FREEZE_ABORT_MASK 5605 */ 5606 if (is_ax(dd) && (reg & RXE_FREEZE_ABORT_MASK)) 5607 flags = FREEZE_ABORT; 5608 5609 start_freeze_handling(dd->pport, flags); 5610 } 5611 5612 for (i = 0; i < NUM_RCV_ERR_STATUS_COUNTERS; i++) { 5613 if (reg & (1ull << i)) 5614 incr_cntr64(&dd->rcv_err_status_cnt[i]); 5615 } 5616 } 5617 5618 static void handle_misc_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5619 { 5620 char buf[96]; 5621 int i = 0; 5622 5623 dd_dev_info(dd, "Misc Error: %s", 5624 misc_err_status_string(buf, sizeof(buf), reg)); 5625 for (i = 0; i < NUM_MISC_ERR_STATUS_COUNTERS; i++) { 5626 if (reg & (1ull << i)) 5627 incr_cntr64(&dd->misc_err_status_cnt[i]); 5628 } 5629 } 5630 5631 static void handle_pio_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5632 { 5633 char buf[96]; 5634 int i = 0; 5635 5636 dd_dev_info(dd, "PIO Error: %s\n", 5637 pio_err_status_string(buf, sizeof(buf), reg)); 5638 5639 if (reg & ALL_PIO_FREEZE_ERR) 5640 start_freeze_handling(dd->pport, 0); 5641 5642 for (i = 0; i < NUM_SEND_PIO_ERR_STATUS_COUNTERS; i++) { 5643 if (reg & (1ull << i)) 5644 incr_cntr64(&dd->send_pio_err_status_cnt[i]); 5645 } 5646 } 5647 5648 static void handle_sdma_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5649 { 5650 char buf[96]; 5651 int i = 0; 5652 5653 dd_dev_info(dd, "SDMA Error: %s\n", 5654 sdma_err_status_string(buf, sizeof(buf), reg)); 5655 5656 if (reg & ALL_SDMA_FREEZE_ERR) 5657 start_freeze_handling(dd->pport, 0); 5658 5659 for (i = 0; i < NUM_SEND_DMA_ERR_STATUS_COUNTERS; i++) { 5660 if (reg & (1ull << i)) 5661 incr_cntr64(&dd->send_dma_err_status_cnt[i]); 5662 } 5663 } 5664 5665 static inline void __count_port_discards(struct hfi1_pportdata *ppd) 5666 { 5667 incr_cntr64(&ppd->port_xmit_discards); 5668 } 5669 5670 static void count_port_inactive(struct hfi1_devdata *dd) 5671 { 5672 __count_port_discards(dd->pport); 5673 } 5674 5675 /* 5676 * We have had a "disallowed packet" error during egress. Determine the 5677 * integrity check which failed, and update relevant error counter, etc. 5678 * 5679 * Note that the SEND_EGRESS_ERR_INFO register has only a single 5680 * bit of state per integrity check, and so we can miss the reason for an 5681 * egress error if more than one packet fails the same integrity check 5682 * since we cleared the corresponding bit in SEND_EGRESS_ERR_INFO. 5683 */ 5684 static void handle_send_egress_err_info(struct hfi1_devdata *dd, 5685 int vl) 5686 { 5687 struct hfi1_pportdata *ppd = dd->pport; 5688 u64 src = read_csr(dd, SEND_EGRESS_ERR_SOURCE); /* read first */ 5689 u64 info = read_csr(dd, SEND_EGRESS_ERR_INFO); 5690 char buf[96]; 5691 5692 /* clear down all observed info as quickly as possible after read */ 5693 write_csr(dd, SEND_EGRESS_ERR_INFO, info); 5694 5695 dd_dev_info(dd, 5696 "Egress Error Info: 0x%llx, %s Egress Error Src 0x%llx\n", 5697 info, egress_err_info_string(buf, sizeof(buf), info), src); 5698 5699 /* Eventually add other counters for each bit */ 5700 if (info & PORT_DISCARD_EGRESS_ERRS) { 5701 int weight, i; 5702 5703 /* 5704 * Count all applicable bits as individual errors and 5705 * attribute them to the packet that triggered this handler. 5706 * This may not be completely accurate due to limitations 5707 * on the available hardware error information. There is 5708 * a single information register and any number of error 5709 * packets may have occurred and contributed to it before 5710 * this routine is called. This means that: 5711 * a) If multiple packets with the same error occur before 5712 * this routine is called, earlier packets are missed. 5713 * There is only a single bit for each error type. 5714 * b) Errors may not be attributed to the correct VL. 5715 * The driver is attributing all bits in the info register 5716 * to the packet that triggered this call, but bits 5717 * could be an accumulation of different packets with 5718 * different VLs. 5719 * c) A single error packet may have multiple counts attached 5720 * to it. There is no way for the driver to know if 5721 * multiple bits set in the info register are due to a 5722 * single packet or multiple packets. The driver assumes 5723 * multiple packets. 5724 */ 5725 weight = hweight64(info & PORT_DISCARD_EGRESS_ERRS); 5726 for (i = 0; i < weight; i++) { 5727 __count_port_discards(ppd); 5728 if (vl >= 0 && vl < TXE_NUM_DATA_VL) 5729 incr_cntr64(&ppd->port_xmit_discards_vl[vl]); 5730 else if (vl == 15) 5731 incr_cntr64(&ppd->port_xmit_discards_vl 5732 [C_VL_15]); 5733 } 5734 } 5735 } 5736 5737 /* 5738 * Input value is a bit position within the SEND_EGRESS_ERR_STATUS 5739 * register. Does it represent a 'port inactive' error? 5740 */ 5741 static inline int port_inactive_err(u64 posn) 5742 { 5743 return (posn >= SEES(TX_LINKDOWN) && 5744 posn <= SEES(TX_INCORRECT_LINK_STATE)); 5745 } 5746 5747 /* 5748 * Input value is a bit position within the SEND_EGRESS_ERR_STATUS 5749 * register. Does it represent a 'disallowed packet' error? 5750 */ 5751 static inline int disallowed_pkt_err(int posn) 5752 { 5753 return (posn >= SEES(TX_SDMA0_DISALLOWED_PACKET) && 5754 posn <= SEES(TX_SDMA15_DISALLOWED_PACKET)); 5755 } 5756 5757 /* 5758 * Input value is a bit position of one of the SDMA engine disallowed 5759 * packet errors. Return which engine. Use of this must be guarded by 5760 * disallowed_pkt_err(). 5761 */ 5762 static inline int disallowed_pkt_engine(int posn) 5763 { 5764 return posn - SEES(TX_SDMA0_DISALLOWED_PACKET); 5765 } 5766 5767 /* 5768 * Translate an SDMA engine to a VL. Return -1 if the tranlation cannot 5769 * be done. 5770 */ 5771 static int engine_to_vl(struct hfi1_devdata *dd, int engine) 5772 { 5773 struct sdma_vl_map *m; 5774 int vl; 5775 5776 /* range check */ 5777 if (engine < 0 || engine >= TXE_NUM_SDMA_ENGINES) 5778 return -1; 5779 5780 rcu_read_lock(); 5781 m = rcu_dereference(dd->sdma_map); 5782 vl = m->engine_to_vl[engine]; 5783 rcu_read_unlock(); 5784 5785 return vl; 5786 } 5787 5788 /* 5789 * Translate the send context (sofware index) into a VL. Return -1 if the 5790 * translation cannot be done. 5791 */ 5792 static int sc_to_vl(struct hfi1_devdata *dd, int sw_index) 5793 { 5794 struct send_context_info *sci; 5795 struct send_context *sc; 5796 int i; 5797 5798 sci = &dd->send_contexts[sw_index]; 5799 5800 /* there is no information for user (PSM) and ack contexts */ 5801 if ((sci->type != SC_KERNEL) && (sci->type != SC_VL15)) 5802 return -1; 5803 5804 sc = sci->sc; 5805 if (!sc) 5806 return -1; 5807 if (dd->vld[15].sc == sc) 5808 return 15; 5809 for (i = 0; i < num_vls; i++) 5810 if (dd->vld[i].sc == sc) 5811 return i; 5812 5813 return -1; 5814 } 5815 5816 static void handle_egress_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5817 { 5818 u64 reg_copy = reg, handled = 0; 5819 char buf[96]; 5820 int i = 0; 5821 5822 if (reg & ALL_TXE_EGRESS_FREEZE_ERR) 5823 start_freeze_handling(dd->pport, 0); 5824 else if (is_ax(dd) && 5825 (reg & SEND_EGRESS_ERR_STATUS_TX_CREDIT_RETURN_VL_ERR_SMASK) && 5826 (dd->icode != ICODE_FUNCTIONAL_SIMULATOR)) 5827 start_freeze_handling(dd->pport, 0); 5828 5829 while (reg_copy) { 5830 int posn = fls64(reg_copy); 5831 /* fls64() returns a 1-based offset, we want it zero based */ 5832 int shift = posn - 1; 5833 u64 mask = 1ULL << shift; 5834 5835 if (port_inactive_err(shift)) { 5836 count_port_inactive(dd); 5837 handled |= mask; 5838 } else if (disallowed_pkt_err(shift)) { 5839 int vl = engine_to_vl(dd, disallowed_pkt_engine(shift)); 5840 5841 handle_send_egress_err_info(dd, vl); 5842 handled |= mask; 5843 } 5844 reg_copy &= ~mask; 5845 } 5846 5847 reg &= ~handled; 5848 5849 if (reg) 5850 dd_dev_info(dd, "Egress Error: %s\n", 5851 egress_err_status_string(buf, sizeof(buf), reg)); 5852 5853 for (i = 0; i < NUM_SEND_EGRESS_ERR_STATUS_COUNTERS; i++) { 5854 if (reg & (1ull << i)) 5855 incr_cntr64(&dd->send_egress_err_status_cnt[i]); 5856 } 5857 } 5858 5859 static void handle_txe_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 5860 { 5861 char buf[96]; 5862 int i = 0; 5863 5864 dd_dev_info(dd, "Send Error: %s\n", 5865 send_err_status_string(buf, sizeof(buf), reg)); 5866 5867 for (i = 0; i < NUM_SEND_ERR_STATUS_COUNTERS; i++) { 5868 if (reg & (1ull << i)) 5869 incr_cntr64(&dd->send_err_status_cnt[i]); 5870 } 5871 } 5872 5873 /* 5874 * The maximum number of times the error clear down will loop before 5875 * blocking a repeating error. This value is arbitrary. 5876 */ 5877 #define MAX_CLEAR_COUNT 20 5878 5879 /* 5880 * Clear and handle an error register. All error interrupts are funneled 5881 * through here to have a central location to correctly handle single- 5882 * or multi-shot errors. 5883 * 5884 * For non per-context registers, call this routine with a context value 5885 * of 0 so the per-context offset is zero. 5886 * 5887 * If the handler loops too many times, assume that something is wrong 5888 * and can't be fixed, so mask the error bits. 5889 */ 5890 static void interrupt_clear_down(struct hfi1_devdata *dd, 5891 u32 context, 5892 const struct err_reg_info *eri) 5893 { 5894 u64 reg; 5895 u32 count; 5896 5897 /* read in a loop until no more errors are seen */ 5898 count = 0; 5899 while (1) { 5900 reg = read_kctxt_csr(dd, context, eri->status); 5901 if (reg == 0) 5902 break; 5903 write_kctxt_csr(dd, context, eri->clear, reg); 5904 if (likely(eri->handler)) 5905 eri->handler(dd, context, reg); 5906 count++; 5907 if (count > MAX_CLEAR_COUNT) { 5908 u64 mask; 5909 5910 dd_dev_err(dd, "Repeating %s bits 0x%llx - masking\n", 5911 eri->desc, reg); 5912 /* 5913 * Read-modify-write so any other masked bits 5914 * remain masked. 5915 */ 5916 mask = read_kctxt_csr(dd, context, eri->mask); 5917 mask &= ~reg; 5918 write_kctxt_csr(dd, context, eri->mask, mask); 5919 break; 5920 } 5921 } 5922 } 5923 5924 /* 5925 * CCE block "misc" interrupt. Source is < 16. 5926 */ 5927 static void is_misc_err_int(struct hfi1_devdata *dd, unsigned int source) 5928 { 5929 const struct err_reg_info *eri = &misc_errs[source]; 5930 5931 if (eri->handler) { 5932 interrupt_clear_down(dd, 0, eri); 5933 } else { 5934 dd_dev_err(dd, "Unexpected misc interrupt (%u) - reserved\n", 5935 source); 5936 } 5937 } 5938 5939 static char *send_context_err_status_string(char *buf, int buf_len, u64 flags) 5940 { 5941 return flag_string(buf, buf_len, flags, 5942 sc_err_status_flags, 5943 ARRAY_SIZE(sc_err_status_flags)); 5944 } 5945 5946 /* 5947 * Send context error interrupt. Source (hw_context) is < 160. 5948 * 5949 * All send context errors cause the send context to halt. The normal 5950 * clear-down mechanism cannot be used because we cannot clear the 5951 * error bits until several other long-running items are done first. 5952 * This is OK because with the context halted, nothing else is going 5953 * to happen on it anyway. 5954 */ 5955 static void is_sendctxt_err_int(struct hfi1_devdata *dd, 5956 unsigned int hw_context) 5957 { 5958 struct send_context_info *sci; 5959 struct send_context *sc; 5960 char flags[96]; 5961 u64 status; 5962 u32 sw_index; 5963 int i = 0; 5964 unsigned long irq_flags; 5965 5966 sw_index = dd->hw_to_sw[hw_context]; 5967 if (sw_index >= dd->num_send_contexts) { 5968 dd_dev_err(dd, 5969 "out of range sw index %u for send context %u\n", 5970 sw_index, hw_context); 5971 return; 5972 } 5973 sci = &dd->send_contexts[sw_index]; 5974 spin_lock_irqsave(&dd->sc_lock, irq_flags); 5975 sc = sci->sc; 5976 if (!sc) { 5977 dd_dev_err(dd, "%s: context %u(%u): no sc?\n", __func__, 5978 sw_index, hw_context); 5979 spin_unlock_irqrestore(&dd->sc_lock, irq_flags); 5980 return; 5981 } 5982 5983 /* tell the software that a halt has begun */ 5984 sc_stop(sc, SCF_HALTED); 5985 5986 status = read_kctxt_csr(dd, hw_context, SEND_CTXT_ERR_STATUS); 5987 5988 dd_dev_info(dd, "Send Context %u(%u) Error: %s\n", sw_index, hw_context, 5989 send_context_err_status_string(flags, sizeof(flags), 5990 status)); 5991 5992 if (status & SEND_CTXT_ERR_STATUS_PIO_DISALLOWED_PACKET_ERR_SMASK) 5993 handle_send_egress_err_info(dd, sc_to_vl(dd, sw_index)); 5994 5995 /* 5996 * Automatically restart halted kernel contexts out of interrupt 5997 * context. User contexts must ask the driver to restart the context. 5998 */ 5999 if (sc->type != SC_USER) 6000 queue_work(dd->pport->hfi1_wq, &sc->halt_work); 6001 spin_unlock_irqrestore(&dd->sc_lock, irq_flags); 6002 6003 /* 6004 * Update the counters for the corresponding status bits. 6005 * Note that these particular counters are aggregated over all 6006 * 160 contexts. 6007 */ 6008 for (i = 0; i < NUM_SEND_CTXT_ERR_STATUS_COUNTERS; i++) { 6009 if (status & (1ull << i)) 6010 incr_cntr64(&dd->sw_ctxt_err_status_cnt[i]); 6011 } 6012 } 6013 6014 static void handle_sdma_eng_err(struct hfi1_devdata *dd, 6015 unsigned int source, u64 status) 6016 { 6017 struct sdma_engine *sde; 6018 int i = 0; 6019 6020 sde = &dd->per_sdma[source]; 6021 #ifdef CONFIG_SDMA_VERBOSITY 6022 dd_dev_err(sde->dd, "CONFIG SDMA(%u) %s:%d %s()\n", sde->this_idx, 6023 slashstrip(__FILE__), __LINE__, __func__); 6024 dd_dev_err(sde->dd, "CONFIG SDMA(%u) source: %u status 0x%llx\n", 6025 sde->this_idx, source, (unsigned long long)status); 6026 #endif 6027 sde->err_cnt++; 6028 sdma_engine_error(sde, status); 6029 6030 /* 6031 * Update the counters for the corresponding status bits. 6032 * Note that these particular counters are aggregated over 6033 * all 16 DMA engines. 6034 */ 6035 for (i = 0; i < NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS; i++) { 6036 if (status & (1ull << i)) 6037 incr_cntr64(&dd->sw_send_dma_eng_err_status_cnt[i]); 6038 } 6039 } 6040 6041 /* 6042 * CCE block SDMA error interrupt. Source is < 16. 6043 */ 6044 static void is_sdma_eng_err_int(struct hfi1_devdata *dd, unsigned int source) 6045 { 6046 #ifdef CONFIG_SDMA_VERBOSITY 6047 struct sdma_engine *sde = &dd->per_sdma[source]; 6048 6049 dd_dev_err(dd, "CONFIG SDMA(%u) %s:%d %s()\n", sde->this_idx, 6050 slashstrip(__FILE__), __LINE__, __func__); 6051 dd_dev_err(dd, "CONFIG SDMA(%u) source: %u\n", sde->this_idx, 6052 source); 6053 sdma_dumpstate(sde); 6054 #endif 6055 interrupt_clear_down(dd, source, &sdma_eng_err); 6056 } 6057 6058 /* 6059 * CCE block "various" interrupt. Source is < 8. 6060 */ 6061 static void is_various_int(struct hfi1_devdata *dd, unsigned int source) 6062 { 6063 const struct err_reg_info *eri = &various_err[source]; 6064 6065 /* 6066 * TCritInt cannot go through interrupt_clear_down() 6067 * because it is not a second tier interrupt. The handler 6068 * should be called directly. 6069 */ 6070 if (source == TCRIT_INT_SOURCE) 6071 handle_temp_err(dd); 6072 else if (eri->handler) 6073 interrupt_clear_down(dd, 0, eri); 6074 else 6075 dd_dev_info(dd, 6076 "%s: Unimplemented/reserved interrupt %d\n", 6077 __func__, source); 6078 } 6079 6080 static void handle_qsfp_int(struct hfi1_devdata *dd, u32 src_ctx, u64 reg) 6081 { 6082 /* src_ctx is always zero */ 6083 struct hfi1_pportdata *ppd = dd->pport; 6084 unsigned long flags; 6085 u64 qsfp_int_mgmt = (u64)(QSFP_HFI0_INT_N | QSFP_HFI0_MODPRST_N); 6086 6087 if (reg & QSFP_HFI0_MODPRST_N) { 6088 if (!qsfp_mod_present(ppd)) { 6089 dd_dev_info(dd, "%s: QSFP module removed\n", 6090 __func__); 6091 6092 ppd->driver_link_ready = 0; 6093 /* 6094 * Cable removed, reset all our information about the 6095 * cache and cable capabilities 6096 */ 6097 6098 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 6099 /* 6100 * We don't set cache_refresh_required here as we expect 6101 * an interrupt when a cable is inserted 6102 */ 6103 ppd->qsfp_info.cache_valid = 0; 6104 ppd->qsfp_info.reset_needed = 0; 6105 ppd->qsfp_info.limiting_active = 0; 6106 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, 6107 flags); 6108 /* Invert the ModPresent pin now to detect plug-in */ 6109 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_INVERT : 6110 ASIC_QSFP1_INVERT, qsfp_int_mgmt); 6111 6112 if ((ppd->offline_disabled_reason > 6113 HFI1_ODR_MASK( 6114 OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED)) || 6115 (ppd->offline_disabled_reason == 6116 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE))) 6117 ppd->offline_disabled_reason = 6118 HFI1_ODR_MASK( 6119 OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED); 6120 6121 if (ppd->host_link_state == HLS_DN_POLL) { 6122 /* 6123 * The link is still in POLL. This means 6124 * that the normal link down processing 6125 * will not happen. We have to do it here 6126 * before turning the DC off. 6127 */ 6128 queue_work(ppd->link_wq, &ppd->link_down_work); 6129 } 6130 } else { 6131 dd_dev_info(dd, "%s: QSFP module inserted\n", 6132 __func__); 6133 6134 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 6135 ppd->qsfp_info.cache_valid = 0; 6136 ppd->qsfp_info.cache_refresh_required = 1; 6137 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, 6138 flags); 6139 6140 /* 6141 * Stop inversion of ModPresent pin to detect 6142 * removal of the cable 6143 */ 6144 qsfp_int_mgmt &= ~(u64)QSFP_HFI0_MODPRST_N; 6145 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_INVERT : 6146 ASIC_QSFP1_INVERT, qsfp_int_mgmt); 6147 6148 ppd->offline_disabled_reason = 6149 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT); 6150 } 6151 } 6152 6153 if (reg & QSFP_HFI0_INT_N) { 6154 dd_dev_info(dd, "%s: Interrupt received from QSFP module\n", 6155 __func__); 6156 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 6157 ppd->qsfp_info.check_interrupt_flags = 1; 6158 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, flags); 6159 } 6160 6161 /* Schedule the QSFP work only if there is a cable attached. */ 6162 if (qsfp_mod_present(ppd)) 6163 queue_work(ppd->link_wq, &ppd->qsfp_info.qsfp_work); 6164 } 6165 6166 static int request_host_lcb_access(struct hfi1_devdata *dd) 6167 { 6168 int ret; 6169 6170 ret = do_8051_command(dd, HCMD_MISC, 6171 (u64)HCMD_MISC_REQUEST_LCB_ACCESS << 6172 LOAD_DATA_FIELD_ID_SHIFT, NULL); 6173 if (ret != HCMD_SUCCESS) { 6174 dd_dev_err(dd, "%s: command failed with error %d\n", 6175 __func__, ret); 6176 } 6177 return ret == HCMD_SUCCESS ? 0 : -EBUSY; 6178 } 6179 6180 static int request_8051_lcb_access(struct hfi1_devdata *dd) 6181 { 6182 int ret; 6183 6184 ret = do_8051_command(dd, HCMD_MISC, 6185 (u64)HCMD_MISC_GRANT_LCB_ACCESS << 6186 LOAD_DATA_FIELD_ID_SHIFT, NULL); 6187 if (ret != HCMD_SUCCESS) { 6188 dd_dev_err(dd, "%s: command failed with error %d\n", 6189 __func__, ret); 6190 } 6191 return ret == HCMD_SUCCESS ? 0 : -EBUSY; 6192 } 6193 6194 /* 6195 * Set the LCB selector - allow host access. The DCC selector always 6196 * points to the host. 6197 */ 6198 static inline void set_host_lcb_access(struct hfi1_devdata *dd) 6199 { 6200 write_csr(dd, DC_DC8051_CFG_CSR_ACCESS_SEL, 6201 DC_DC8051_CFG_CSR_ACCESS_SEL_DCC_SMASK | 6202 DC_DC8051_CFG_CSR_ACCESS_SEL_LCB_SMASK); 6203 } 6204 6205 /* 6206 * Clear the LCB selector - allow 8051 access. The DCC selector always 6207 * points to the host. 6208 */ 6209 static inline void set_8051_lcb_access(struct hfi1_devdata *dd) 6210 { 6211 write_csr(dd, DC_DC8051_CFG_CSR_ACCESS_SEL, 6212 DC_DC8051_CFG_CSR_ACCESS_SEL_DCC_SMASK); 6213 } 6214 6215 /* 6216 * Acquire LCB access from the 8051. If the host already has access, 6217 * just increment a counter. Otherwise, inform the 8051 that the 6218 * host is taking access. 6219 * 6220 * Returns: 6221 * 0 on success 6222 * -EBUSY if the 8051 has control and cannot be disturbed 6223 * -errno if unable to acquire access from the 8051 6224 */ 6225 int acquire_lcb_access(struct hfi1_devdata *dd, int sleep_ok) 6226 { 6227 struct hfi1_pportdata *ppd = dd->pport; 6228 int ret = 0; 6229 6230 /* 6231 * Use the host link state lock so the operation of this routine 6232 * { link state check, selector change, count increment } can occur 6233 * as a unit against a link state change. Otherwise there is a 6234 * race between the state change and the count increment. 6235 */ 6236 if (sleep_ok) { 6237 mutex_lock(&ppd->hls_lock); 6238 } else { 6239 while (!mutex_trylock(&ppd->hls_lock)) 6240 udelay(1); 6241 } 6242 6243 /* this access is valid only when the link is up */ 6244 if (ppd->host_link_state & HLS_DOWN) { 6245 dd_dev_info(dd, "%s: link state %s not up\n", 6246 __func__, link_state_name(ppd->host_link_state)); 6247 ret = -EBUSY; 6248 goto done; 6249 } 6250 6251 if (dd->lcb_access_count == 0) { 6252 ret = request_host_lcb_access(dd); 6253 if (ret) { 6254 dd_dev_err(dd, 6255 "%s: unable to acquire LCB access, err %d\n", 6256 __func__, ret); 6257 goto done; 6258 } 6259 set_host_lcb_access(dd); 6260 } 6261 dd->lcb_access_count++; 6262 done: 6263 mutex_unlock(&ppd->hls_lock); 6264 return ret; 6265 } 6266 6267 /* 6268 * Release LCB access by decrementing the use count. If the count is moving 6269 * from 1 to 0, inform 8051 that it has control back. 6270 * 6271 * Returns: 6272 * 0 on success 6273 * -errno if unable to release access to the 8051 6274 */ 6275 int release_lcb_access(struct hfi1_devdata *dd, int sleep_ok) 6276 { 6277 int ret = 0; 6278 6279 /* 6280 * Use the host link state lock because the acquire needed it. 6281 * Here, we only need to keep { selector change, count decrement } 6282 * as a unit. 6283 */ 6284 if (sleep_ok) { 6285 mutex_lock(&dd->pport->hls_lock); 6286 } else { 6287 while (!mutex_trylock(&dd->pport->hls_lock)) 6288 udelay(1); 6289 } 6290 6291 if (dd->lcb_access_count == 0) { 6292 dd_dev_err(dd, "%s: LCB access count is zero. Skipping.\n", 6293 __func__); 6294 goto done; 6295 } 6296 6297 if (dd->lcb_access_count == 1) { 6298 set_8051_lcb_access(dd); 6299 ret = request_8051_lcb_access(dd); 6300 if (ret) { 6301 dd_dev_err(dd, 6302 "%s: unable to release LCB access, err %d\n", 6303 __func__, ret); 6304 /* restore host access if the grant didn't work */ 6305 set_host_lcb_access(dd); 6306 goto done; 6307 } 6308 } 6309 dd->lcb_access_count--; 6310 done: 6311 mutex_unlock(&dd->pport->hls_lock); 6312 return ret; 6313 } 6314 6315 /* 6316 * Initialize LCB access variables and state. Called during driver load, 6317 * after most of the initialization is finished. 6318 * 6319 * The DC default is LCB access on for the host. The driver defaults to 6320 * leaving access to the 8051. Assign access now - this constrains the call 6321 * to this routine to be after all LCB set-up is done. In particular, after 6322 * hf1_init_dd() -> set_up_interrupts() -> clear_all_interrupts() 6323 */ 6324 static void init_lcb_access(struct hfi1_devdata *dd) 6325 { 6326 dd->lcb_access_count = 0; 6327 } 6328 6329 /* 6330 * Write a response back to a 8051 request. 6331 */ 6332 static void hreq_response(struct hfi1_devdata *dd, u8 return_code, u16 rsp_data) 6333 { 6334 write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, 6335 DC_DC8051_CFG_EXT_DEV_0_COMPLETED_SMASK | 6336 (u64)return_code << 6337 DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT | 6338 (u64)rsp_data << DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT); 6339 } 6340 6341 /* 6342 * Handle host requests from the 8051. 6343 */ 6344 static void handle_8051_request(struct hfi1_pportdata *ppd) 6345 { 6346 struct hfi1_devdata *dd = ppd->dd; 6347 u64 reg; 6348 u16 data = 0; 6349 u8 type; 6350 6351 reg = read_csr(dd, DC_DC8051_CFG_EXT_DEV_1); 6352 if ((reg & DC_DC8051_CFG_EXT_DEV_1_REQ_NEW_SMASK) == 0) 6353 return; /* no request */ 6354 6355 /* zero out COMPLETED so the response is seen */ 6356 write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, 0); 6357 6358 /* extract request details */ 6359 type = (reg >> DC_DC8051_CFG_EXT_DEV_1_REQ_TYPE_SHIFT) 6360 & DC_DC8051_CFG_EXT_DEV_1_REQ_TYPE_MASK; 6361 data = (reg >> DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_SHIFT) 6362 & DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_MASK; 6363 6364 switch (type) { 6365 case HREQ_LOAD_CONFIG: 6366 case HREQ_SAVE_CONFIG: 6367 case HREQ_READ_CONFIG: 6368 case HREQ_SET_TX_EQ_ABS: 6369 case HREQ_SET_TX_EQ_REL: 6370 case HREQ_ENABLE: 6371 dd_dev_info(dd, "8051 request: request 0x%x not supported\n", 6372 type); 6373 hreq_response(dd, HREQ_NOT_SUPPORTED, 0); 6374 break; 6375 case HREQ_LCB_RESET: 6376 /* Put the LCB, RX FPE and TX FPE into reset */ 6377 write_csr(dd, DCC_CFG_RESET, LCB_RX_FPE_TX_FPE_INTO_RESET); 6378 /* Make sure the write completed */ 6379 (void)read_csr(dd, DCC_CFG_RESET); 6380 /* Hold the reset long enough to take effect */ 6381 udelay(1); 6382 /* Take the LCB, RX FPE and TX FPE out of reset */ 6383 write_csr(dd, DCC_CFG_RESET, LCB_RX_FPE_TX_FPE_OUT_OF_RESET); 6384 hreq_response(dd, HREQ_SUCCESS, 0); 6385 6386 break; 6387 case HREQ_CONFIG_DONE: 6388 hreq_response(dd, HREQ_SUCCESS, 0); 6389 break; 6390 6391 case HREQ_INTERFACE_TEST: 6392 hreq_response(dd, HREQ_SUCCESS, data); 6393 break; 6394 default: 6395 dd_dev_err(dd, "8051 request: unknown request 0x%x\n", type); 6396 hreq_response(dd, HREQ_NOT_SUPPORTED, 0); 6397 break; 6398 } 6399 } 6400 6401 /* 6402 * Set up allocation unit vaulue. 6403 */ 6404 void set_up_vau(struct hfi1_devdata *dd, u8 vau) 6405 { 6406 u64 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 6407 6408 /* do not modify other values in the register */ 6409 reg &= ~SEND_CM_GLOBAL_CREDIT_AU_SMASK; 6410 reg |= (u64)vau << SEND_CM_GLOBAL_CREDIT_AU_SHIFT; 6411 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 6412 } 6413 6414 /* 6415 * Set up initial VL15 credits of the remote. Assumes the rest of 6416 * the CM credit registers are zero from a previous global or credit reset. 6417 * Shared limit for VL15 will always be 0. 6418 */ 6419 void set_up_vl15(struct hfi1_devdata *dd, u16 vl15buf) 6420 { 6421 u64 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 6422 6423 /* set initial values for total and shared credit limit */ 6424 reg &= ~(SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SMASK | 6425 SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SMASK); 6426 6427 /* 6428 * Set total limit to be equal to VL15 credits. 6429 * Leave shared limit at 0. 6430 */ 6431 reg |= (u64)vl15buf << SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SHIFT; 6432 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 6433 6434 write_csr(dd, SEND_CM_CREDIT_VL15, (u64)vl15buf 6435 << SEND_CM_CREDIT_VL15_DEDICATED_LIMIT_VL_SHIFT); 6436 } 6437 6438 /* 6439 * Zero all credit details from the previous connection and 6440 * reset the CM manager's internal counters. 6441 */ 6442 void reset_link_credits(struct hfi1_devdata *dd) 6443 { 6444 int i; 6445 6446 /* remove all previous VL credit limits */ 6447 for (i = 0; i < TXE_NUM_DATA_VL; i++) 6448 write_csr(dd, SEND_CM_CREDIT_VL + (8 * i), 0); 6449 write_csr(dd, SEND_CM_CREDIT_VL15, 0); 6450 write_csr(dd, SEND_CM_GLOBAL_CREDIT, 0); 6451 /* reset the CM block */ 6452 pio_send_control(dd, PSC_CM_RESET); 6453 /* reset cached value */ 6454 dd->vl15buf_cached = 0; 6455 } 6456 6457 /* convert a vCU to a CU */ 6458 static u32 vcu_to_cu(u8 vcu) 6459 { 6460 return 1 << vcu; 6461 } 6462 6463 /* convert a CU to a vCU */ 6464 static u8 cu_to_vcu(u32 cu) 6465 { 6466 return ilog2(cu); 6467 } 6468 6469 /* convert a vAU to an AU */ 6470 static u32 vau_to_au(u8 vau) 6471 { 6472 return 8 * (1 << vau); 6473 } 6474 6475 static void set_linkup_defaults(struct hfi1_pportdata *ppd) 6476 { 6477 ppd->sm_trap_qp = 0x0; 6478 ppd->sa_qp = 0x1; 6479 } 6480 6481 /* 6482 * Graceful LCB shutdown. This leaves the LCB FIFOs in reset. 6483 */ 6484 static void lcb_shutdown(struct hfi1_devdata *dd, int abort) 6485 { 6486 u64 reg; 6487 6488 /* clear lcb run: LCB_CFG_RUN.EN = 0 */ 6489 write_csr(dd, DC_LCB_CFG_RUN, 0); 6490 /* set tx fifo reset: LCB_CFG_TX_FIFOS_RESET.VAL = 1 */ 6491 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 6492 1ull << DC_LCB_CFG_TX_FIFOS_RESET_VAL_SHIFT); 6493 /* set dcc reset csr: DCC_CFG_RESET.{reset_lcb,reset_rx_fpe} = 1 */ 6494 dd->lcb_err_en = read_csr(dd, DC_LCB_ERR_EN); 6495 reg = read_csr(dd, DCC_CFG_RESET); 6496 write_csr(dd, DCC_CFG_RESET, reg | 6497 DCC_CFG_RESET_RESET_LCB | DCC_CFG_RESET_RESET_RX_FPE); 6498 (void)read_csr(dd, DCC_CFG_RESET); /* make sure the write completed */ 6499 if (!abort) { 6500 udelay(1); /* must hold for the longer of 16cclks or 20ns */ 6501 write_csr(dd, DCC_CFG_RESET, reg); 6502 write_csr(dd, DC_LCB_ERR_EN, dd->lcb_err_en); 6503 } 6504 } 6505 6506 /* 6507 * This routine should be called after the link has been transitioned to 6508 * OFFLINE (OFFLINE state has the side effect of putting the SerDes into 6509 * reset). 6510 * 6511 * The expectation is that the caller of this routine would have taken 6512 * care of properly transitioning the link into the correct state. 6513 * NOTE: the caller needs to acquire the dd->dc8051_lock lock 6514 * before calling this function. 6515 */ 6516 static void _dc_shutdown(struct hfi1_devdata *dd) 6517 { 6518 lockdep_assert_held(&dd->dc8051_lock); 6519 6520 if (dd->dc_shutdown) 6521 return; 6522 6523 dd->dc_shutdown = 1; 6524 /* Shutdown the LCB */ 6525 lcb_shutdown(dd, 1); 6526 /* 6527 * Going to OFFLINE would have causes the 8051 to put the 6528 * SerDes into reset already. Just need to shut down the 8051, 6529 * itself. 6530 */ 6531 write_csr(dd, DC_DC8051_CFG_RST, 0x1); 6532 } 6533 6534 static void dc_shutdown(struct hfi1_devdata *dd) 6535 { 6536 mutex_lock(&dd->dc8051_lock); 6537 _dc_shutdown(dd); 6538 mutex_unlock(&dd->dc8051_lock); 6539 } 6540 6541 /* 6542 * Calling this after the DC has been brought out of reset should not 6543 * do any damage. 6544 * NOTE: the caller needs to acquire the dd->dc8051_lock lock 6545 * before calling this function. 6546 */ 6547 static void _dc_start(struct hfi1_devdata *dd) 6548 { 6549 lockdep_assert_held(&dd->dc8051_lock); 6550 6551 if (!dd->dc_shutdown) 6552 return; 6553 6554 /* Take the 8051 out of reset */ 6555 write_csr(dd, DC_DC8051_CFG_RST, 0ull); 6556 /* Wait until 8051 is ready */ 6557 if (wait_fm_ready(dd, TIMEOUT_8051_START)) 6558 dd_dev_err(dd, "%s: timeout starting 8051 firmware\n", 6559 __func__); 6560 6561 /* Take away reset for LCB and RX FPE (set in lcb_shutdown). */ 6562 write_csr(dd, DCC_CFG_RESET, LCB_RX_FPE_TX_FPE_OUT_OF_RESET); 6563 /* lcb_shutdown() with abort=1 does not restore these */ 6564 write_csr(dd, DC_LCB_ERR_EN, dd->lcb_err_en); 6565 dd->dc_shutdown = 0; 6566 } 6567 6568 static void dc_start(struct hfi1_devdata *dd) 6569 { 6570 mutex_lock(&dd->dc8051_lock); 6571 _dc_start(dd); 6572 mutex_unlock(&dd->dc8051_lock); 6573 } 6574 6575 /* 6576 * These LCB adjustments are for the Aurora SerDes core in the FPGA. 6577 */ 6578 static void adjust_lcb_for_fpga_serdes(struct hfi1_devdata *dd) 6579 { 6580 u64 rx_radr, tx_radr; 6581 u32 version; 6582 6583 if (dd->icode != ICODE_FPGA_EMULATION) 6584 return; 6585 6586 /* 6587 * These LCB defaults on emulator _s are good, nothing to do here: 6588 * LCB_CFG_TX_FIFOS_RADR 6589 * LCB_CFG_RX_FIFOS_RADR 6590 * LCB_CFG_LN_DCLK 6591 * LCB_CFG_IGNORE_LOST_RCLK 6592 */ 6593 if (is_emulator_s(dd)) 6594 return; 6595 /* else this is _p */ 6596 6597 version = emulator_rev(dd); 6598 if (!is_ax(dd)) 6599 version = 0x2d; /* all B0 use 0x2d or higher settings */ 6600 6601 if (version <= 0x12) { 6602 /* release 0x12 and below */ 6603 6604 /* 6605 * LCB_CFG_RX_FIFOS_RADR.RST_VAL = 0x9 6606 * LCB_CFG_RX_FIFOS_RADR.OK_TO_JUMP_VAL = 0x9 6607 * LCB_CFG_RX_FIFOS_RADR.DO_NOT_JUMP_VAL = 0xa 6608 */ 6609 rx_radr = 6610 0xaull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6611 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6612 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6613 /* 6614 * LCB_CFG_TX_FIFOS_RADR.ON_REINIT = 0 (default) 6615 * LCB_CFG_TX_FIFOS_RADR.RST_VAL = 6 6616 */ 6617 tx_radr = 6ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6618 } else if (version <= 0x18) { 6619 /* release 0x13 up to 0x18 */ 6620 /* LCB_CFG_RX_FIFOS_RADR = 0x988 */ 6621 rx_radr = 6622 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6623 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6624 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6625 tx_radr = 7ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6626 } else if (version == 0x19) { 6627 /* release 0x19 */ 6628 /* LCB_CFG_RX_FIFOS_RADR = 0xa99 */ 6629 rx_radr = 6630 0xAull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6631 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6632 | 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6633 tx_radr = 3ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6634 } else if (version == 0x1a) { 6635 /* release 0x1a */ 6636 /* LCB_CFG_RX_FIFOS_RADR = 0x988 */ 6637 rx_radr = 6638 0x9ull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6639 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6640 | 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6641 tx_radr = 7ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6642 write_csr(dd, DC_LCB_CFG_LN_DCLK, 1ull); 6643 } else { 6644 /* release 0x1b and higher */ 6645 /* LCB_CFG_RX_FIFOS_RADR = 0x877 */ 6646 rx_radr = 6647 0x8ull << DC_LCB_CFG_RX_FIFOS_RADR_DO_NOT_JUMP_VAL_SHIFT 6648 | 0x7ull << DC_LCB_CFG_RX_FIFOS_RADR_OK_TO_JUMP_VAL_SHIFT 6649 | 0x7ull << DC_LCB_CFG_RX_FIFOS_RADR_RST_VAL_SHIFT; 6650 tx_radr = 3ull << DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT; 6651 } 6652 6653 write_csr(dd, DC_LCB_CFG_RX_FIFOS_RADR, rx_radr); 6654 /* LCB_CFG_IGNORE_LOST_RCLK.EN = 1 */ 6655 write_csr(dd, DC_LCB_CFG_IGNORE_LOST_RCLK, 6656 DC_LCB_CFG_IGNORE_LOST_RCLK_EN_SMASK); 6657 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RADR, tx_radr); 6658 } 6659 6660 /* 6661 * Handle a SMA idle message 6662 * 6663 * This is a work-queue function outside of the interrupt. 6664 */ 6665 void handle_sma_message(struct work_struct *work) 6666 { 6667 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 6668 sma_message_work); 6669 struct hfi1_devdata *dd = ppd->dd; 6670 u64 msg; 6671 int ret; 6672 6673 /* 6674 * msg is bytes 1-4 of the 40-bit idle message - the command code 6675 * is stripped off 6676 */ 6677 ret = read_idle_sma(dd, &msg); 6678 if (ret) 6679 return; 6680 dd_dev_info(dd, "%s: SMA message 0x%llx\n", __func__, msg); 6681 /* 6682 * React to the SMA message. Byte[1] (0 for us) is the command. 6683 */ 6684 switch (msg & 0xff) { 6685 case SMA_IDLE_ARM: 6686 /* 6687 * See OPAv1 table 9-14 - HFI and External Switch Ports Key 6688 * State Transitions 6689 * 6690 * Only expected in INIT or ARMED, discard otherwise. 6691 */ 6692 if (ppd->host_link_state & (HLS_UP_INIT | HLS_UP_ARMED)) 6693 ppd->neighbor_normal = 1; 6694 break; 6695 case SMA_IDLE_ACTIVE: 6696 /* 6697 * See OPAv1 table 9-14 - HFI and External Switch Ports Key 6698 * State Transitions 6699 * 6700 * Can activate the node. Discard otherwise. 6701 */ 6702 if (ppd->host_link_state == HLS_UP_ARMED && 6703 ppd->is_active_optimize_enabled) { 6704 ppd->neighbor_normal = 1; 6705 ret = set_link_state(ppd, HLS_UP_ACTIVE); 6706 if (ret) 6707 dd_dev_err( 6708 dd, 6709 "%s: received Active SMA idle message, couldn't set link to Active\n", 6710 __func__); 6711 } 6712 break; 6713 default: 6714 dd_dev_err(dd, 6715 "%s: received unexpected SMA idle message 0x%llx\n", 6716 __func__, msg); 6717 break; 6718 } 6719 } 6720 6721 static void adjust_rcvctrl(struct hfi1_devdata *dd, u64 add, u64 clear) 6722 { 6723 u64 rcvctrl; 6724 unsigned long flags; 6725 6726 spin_lock_irqsave(&dd->rcvctrl_lock, flags); 6727 rcvctrl = read_csr(dd, RCV_CTRL); 6728 rcvctrl |= add; 6729 rcvctrl &= ~clear; 6730 write_csr(dd, RCV_CTRL, rcvctrl); 6731 spin_unlock_irqrestore(&dd->rcvctrl_lock, flags); 6732 } 6733 6734 static inline void add_rcvctrl(struct hfi1_devdata *dd, u64 add) 6735 { 6736 adjust_rcvctrl(dd, add, 0); 6737 } 6738 6739 static inline void clear_rcvctrl(struct hfi1_devdata *dd, u64 clear) 6740 { 6741 adjust_rcvctrl(dd, 0, clear); 6742 } 6743 6744 /* 6745 * Called from all interrupt handlers to start handling an SPC freeze. 6746 */ 6747 void start_freeze_handling(struct hfi1_pportdata *ppd, int flags) 6748 { 6749 struct hfi1_devdata *dd = ppd->dd; 6750 struct send_context *sc; 6751 int i; 6752 int sc_flags; 6753 6754 if (flags & FREEZE_SELF) 6755 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK); 6756 6757 /* enter frozen mode */ 6758 dd->flags |= HFI1_FROZEN; 6759 6760 /* notify all SDMA engines that they are going into a freeze */ 6761 sdma_freeze_notify(dd, !!(flags & FREEZE_LINK_DOWN)); 6762 6763 sc_flags = SCF_FROZEN | SCF_HALTED | (flags & FREEZE_LINK_DOWN ? 6764 SCF_LINK_DOWN : 0); 6765 /* do halt pre-handling on all enabled send contexts */ 6766 for (i = 0; i < dd->num_send_contexts; i++) { 6767 sc = dd->send_contexts[i].sc; 6768 if (sc && (sc->flags & SCF_ENABLED)) 6769 sc_stop(sc, sc_flags); 6770 } 6771 6772 /* Send context are frozen. Notify user space */ 6773 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_FROZEN_BIT); 6774 6775 if (flags & FREEZE_ABORT) { 6776 dd_dev_err(dd, 6777 "Aborted freeze recovery. Please REBOOT system\n"); 6778 return; 6779 } 6780 /* queue non-interrupt handler */ 6781 queue_work(ppd->hfi1_wq, &ppd->freeze_work); 6782 } 6783 6784 /* 6785 * Wait until all 4 sub-blocks indicate that they have frozen or unfrozen, 6786 * depending on the "freeze" parameter. 6787 * 6788 * No need to return an error if it times out, our only option 6789 * is to proceed anyway. 6790 */ 6791 static void wait_for_freeze_status(struct hfi1_devdata *dd, int freeze) 6792 { 6793 unsigned long timeout; 6794 u64 reg; 6795 6796 timeout = jiffies + msecs_to_jiffies(FREEZE_STATUS_TIMEOUT); 6797 while (1) { 6798 reg = read_csr(dd, CCE_STATUS); 6799 if (freeze) { 6800 /* waiting until all indicators are set */ 6801 if ((reg & ALL_FROZE) == ALL_FROZE) 6802 return; /* all done */ 6803 } else { 6804 /* waiting until all indicators are clear */ 6805 if ((reg & ALL_FROZE) == 0) 6806 return; /* all done */ 6807 } 6808 6809 if (time_after(jiffies, timeout)) { 6810 dd_dev_err(dd, 6811 "Time out waiting for SPC %sfreeze, bits 0x%llx, expecting 0x%llx, continuing", 6812 freeze ? "" : "un", reg & ALL_FROZE, 6813 freeze ? ALL_FROZE : 0ull); 6814 return; 6815 } 6816 usleep_range(80, 120); 6817 } 6818 } 6819 6820 /* 6821 * Do all freeze handling for the RXE block. 6822 */ 6823 static void rxe_freeze(struct hfi1_devdata *dd) 6824 { 6825 int i; 6826 struct hfi1_ctxtdata *rcd; 6827 6828 /* disable port */ 6829 clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 6830 6831 /* disable all receive contexts */ 6832 for (i = 0; i < dd->num_rcv_contexts; i++) { 6833 rcd = hfi1_rcd_get_by_index(dd, i); 6834 hfi1_rcvctrl(dd, HFI1_RCVCTRL_CTXT_DIS, rcd); 6835 hfi1_rcd_put(rcd); 6836 } 6837 } 6838 6839 /* 6840 * Unfreeze handling for the RXE block - kernel contexts only. 6841 * This will also enable the port. User contexts will do unfreeze 6842 * handling on a per-context basis as they call into the driver. 6843 * 6844 */ 6845 static void rxe_kernel_unfreeze(struct hfi1_devdata *dd) 6846 { 6847 u32 rcvmask; 6848 u16 i; 6849 struct hfi1_ctxtdata *rcd; 6850 6851 /* enable all kernel contexts */ 6852 for (i = 0; i < dd->num_rcv_contexts; i++) { 6853 rcd = hfi1_rcd_get_by_index(dd, i); 6854 6855 /* Ensure all non-user contexts(including vnic) are enabled */ 6856 if (!rcd || 6857 (i >= dd->first_dyn_alloc_ctxt && !rcd->is_vnic)) { 6858 hfi1_rcd_put(rcd); 6859 continue; 6860 } 6861 rcvmask = HFI1_RCVCTRL_CTXT_ENB; 6862 /* HFI1_RCVCTRL_TAILUPD_[ENB|DIS] needs to be set explicitly */ 6863 rcvmask |= rcd->rcvhdrtail_kvaddr ? 6864 HFI1_RCVCTRL_TAILUPD_ENB : HFI1_RCVCTRL_TAILUPD_DIS; 6865 hfi1_rcvctrl(dd, rcvmask, rcd); 6866 hfi1_rcd_put(rcd); 6867 } 6868 6869 /* enable port */ 6870 add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 6871 } 6872 6873 /* 6874 * Non-interrupt SPC freeze handling. 6875 * 6876 * This is a work-queue function outside of the triggering interrupt. 6877 */ 6878 void handle_freeze(struct work_struct *work) 6879 { 6880 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 6881 freeze_work); 6882 struct hfi1_devdata *dd = ppd->dd; 6883 6884 /* wait for freeze indicators on all affected blocks */ 6885 wait_for_freeze_status(dd, 1); 6886 6887 /* SPC is now frozen */ 6888 6889 /* do send PIO freeze steps */ 6890 pio_freeze(dd); 6891 6892 /* do send DMA freeze steps */ 6893 sdma_freeze(dd); 6894 6895 /* do send egress freeze steps - nothing to do */ 6896 6897 /* do receive freeze steps */ 6898 rxe_freeze(dd); 6899 6900 /* 6901 * Unfreeze the hardware - clear the freeze, wait for each 6902 * block's frozen bit to clear, then clear the frozen flag. 6903 */ 6904 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_UNFREEZE_SMASK); 6905 wait_for_freeze_status(dd, 0); 6906 6907 if (is_ax(dd)) { 6908 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK); 6909 wait_for_freeze_status(dd, 1); 6910 write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_UNFREEZE_SMASK); 6911 wait_for_freeze_status(dd, 0); 6912 } 6913 6914 /* do send PIO unfreeze steps for kernel contexts */ 6915 pio_kernel_unfreeze(dd); 6916 6917 /* do send DMA unfreeze steps */ 6918 sdma_unfreeze(dd); 6919 6920 /* do send egress unfreeze steps - nothing to do */ 6921 6922 /* do receive unfreeze steps for kernel contexts */ 6923 rxe_kernel_unfreeze(dd); 6924 6925 /* 6926 * The unfreeze procedure touches global device registers when 6927 * it disables and re-enables RXE. Mark the device unfrozen 6928 * after all that is done so other parts of the driver waiting 6929 * for the device to unfreeze don't do things out of order. 6930 * 6931 * The above implies that the meaning of HFI1_FROZEN flag is 6932 * "Device has gone into freeze mode and freeze mode handling 6933 * is still in progress." 6934 * 6935 * The flag will be removed when freeze mode processing has 6936 * completed. 6937 */ 6938 dd->flags &= ~HFI1_FROZEN; 6939 wake_up(&dd->event_queue); 6940 6941 /* no longer frozen */ 6942 } 6943 6944 /** 6945 * update_xmit_counters - update PortXmitWait/PortVlXmitWait 6946 * counters. 6947 * @ppd: info of physical Hfi port 6948 * @link_width: new link width after link up or downgrade 6949 * 6950 * Update the PortXmitWait and PortVlXmitWait counters after 6951 * a link up or downgrade event to reflect a link width change. 6952 */ 6953 static void update_xmit_counters(struct hfi1_pportdata *ppd, u16 link_width) 6954 { 6955 int i; 6956 u16 tx_width; 6957 u16 link_speed; 6958 6959 tx_width = tx_link_width(link_width); 6960 link_speed = get_link_speed(ppd->link_speed_active); 6961 6962 /* 6963 * There are C_VL_COUNT number of PortVLXmitWait counters. 6964 * Adding 1 to C_VL_COUNT to include the PortXmitWait counter. 6965 */ 6966 for (i = 0; i < C_VL_COUNT + 1; i++) 6967 get_xmit_wait_counters(ppd, tx_width, link_speed, i); 6968 } 6969 6970 /* 6971 * Handle a link up interrupt from the 8051. 6972 * 6973 * This is a work-queue function outside of the interrupt. 6974 */ 6975 void handle_link_up(struct work_struct *work) 6976 { 6977 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 6978 link_up_work); 6979 struct hfi1_devdata *dd = ppd->dd; 6980 6981 set_link_state(ppd, HLS_UP_INIT); 6982 6983 /* cache the read of DC_LCB_STS_ROUND_TRIP_LTP_CNT */ 6984 read_ltp_rtt(dd); 6985 /* 6986 * OPA specifies that certain counters are cleared on a transition 6987 * to link up, so do that. 6988 */ 6989 clear_linkup_counters(dd); 6990 /* 6991 * And (re)set link up default values. 6992 */ 6993 set_linkup_defaults(ppd); 6994 6995 /* 6996 * Set VL15 credits. Use cached value from verify cap interrupt. 6997 * In case of quick linkup or simulator, vl15 value will be set by 6998 * handle_linkup_change. VerifyCap interrupt handler will not be 6999 * called in those scenarios. 7000 */ 7001 if (!(quick_linkup || dd->icode == ICODE_FUNCTIONAL_SIMULATOR)) 7002 set_up_vl15(dd, dd->vl15buf_cached); 7003 7004 /* enforce link speed enabled */ 7005 if ((ppd->link_speed_active & ppd->link_speed_enabled) == 0) { 7006 /* oops - current speed is not enabled, bounce */ 7007 dd_dev_err(dd, 7008 "Link speed active 0x%x is outside enabled 0x%x, downing link\n", 7009 ppd->link_speed_active, ppd->link_speed_enabled); 7010 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_SPEED_POLICY, 0, 7011 OPA_LINKDOWN_REASON_SPEED_POLICY); 7012 set_link_state(ppd, HLS_DN_OFFLINE); 7013 start_link(ppd); 7014 } 7015 } 7016 7017 /* 7018 * Several pieces of LNI information were cached for SMA in ppd. 7019 * Reset these on link down 7020 */ 7021 static void reset_neighbor_info(struct hfi1_pportdata *ppd) 7022 { 7023 ppd->neighbor_guid = 0; 7024 ppd->neighbor_port_number = 0; 7025 ppd->neighbor_type = 0; 7026 ppd->neighbor_fm_security = 0; 7027 } 7028 7029 static const char * const link_down_reason_strs[] = { 7030 [OPA_LINKDOWN_REASON_NONE] = "None", 7031 [OPA_LINKDOWN_REASON_RCV_ERROR_0] = "Receive error 0", 7032 [OPA_LINKDOWN_REASON_BAD_PKT_LEN] = "Bad packet length", 7033 [OPA_LINKDOWN_REASON_PKT_TOO_LONG] = "Packet too long", 7034 [OPA_LINKDOWN_REASON_PKT_TOO_SHORT] = "Packet too short", 7035 [OPA_LINKDOWN_REASON_BAD_SLID] = "Bad SLID", 7036 [OPA_LINKDOWN_REASON_BAD_DLID] = "Bad DLID", 7037 [OPA_LINKDOWN_REASON_BAD_L2] = "Bad L2", 7038 [OPA_LINKDOWN_REASON_BAD_SC] = "Bad SC", 7039 [OPA_LINKDOWN_REASON_RCV_ERROR_8] = "Receive error 8", 7040 [OPA_LINKDOWN_REASON_BAD_MID_TAIL] = "Bad mid tail", 7041 [OPA_LINKDOWN_REASON_RCV_ERROR_10] = "Receive error 10", 7042 [OPA_LINKDOWN_REASON_PREEMPT_ERROR] = "Preempt error", 7043 [OPA_LINKDOWN_REASON_PREEMPT_VL15] = "Preempt vl15", 7044 [OPA_LINKDOWN_REASON_BAD_VL_MARKER] = "Bad VL marker", 7045 [OPA_LINKDOWN_REASON_RCV_ERROR_14] = "Receive error 14", 7046 [OPA_LINKDOWN_REASON_RCV_ERROR_15] = "Receive error 15", 7047 [OPA_LINKDOWN_REASON_BAD_HEAD_DIST] = "Bad head distance", 7048 [OPA_LINKDOWN_REASON_BAD_TAIL_DIST] = "Bad tail distance", 7049 [OPA_LINKDOWN_REASON_BAD_CTRL_DIST] = "Bad control distance", 7050 [OPA_LINKDOWN_REASON_BAD_CREDIT_ACK] = "Bad credit ack", 7051 [OPA_LINKDOWN_REASON_UNSUPPORTED_VL_MARKER] = "Unsupported VL marker", 7052 [OPA_LINKDOWN_REASON_BAD_PREEMPT] = "Bad preempt", 7053 [OPA_LINKDOWN_REASON_BAD_CONTROL_FLIT] = "Bad control flit", 7054 [OPA_LINKDOWN_REASON_EXCEED_MULTICAST_LIMIT] = "Exceed multicast limit", 7055 [OPA_LINKDOWN_REASON_RCV_ERROR_24] = "Receive error 24", 7056 [OPA_LINKDOWN_REASON_RCV_ERROR_25] = "Receive error 25", 7057 [OPA_LINKDOWN_REASON_RCV_ERROR_26] = "Receive error 26", 7058 [OPA_LINKDOWN_REASON_RCV_ERROR_27] = "Receive error 27", 7059 [OPA_LINKDOWN_REASON_RCV_ERROR_28] = "Receive error 28", 7060 [OPA_LINKDOWN_REASON_RCV_ERROR_29] = "Receive error 29", 7061 [OPA_LINKDOWN_REASON_RCV_ERROR_30] = "Receive error 30", 7062 [OPA_LINKDOWN_REASON_EXCESSIVE_BUFFER_OVERRUN] = 7063 "Excessive buffer overrun", 7064 [OPA_LINKDOWN_REASON_UNKNOWN] = "Unknown", 7065 [OPA_LINKDOWN_REASON_REBOOT] = "Reboot", 7066 [OPA_LINKDOWN_REASON_NEIGHBOR_UNKNOWN] = "Neighbor unknown", 7067 [OPA_LINKDOWN_REASON_FM_BOUNCE] = "FM bounce", 7068 [OPA_LINKDOWN_REASON_SPEED_POLICY] = "Speed policy", 7069 [OPA_LINKDOWN_REASON_WIDTH_POLICY] = "Width policy", 7070 [OPA_LINKDOWN_REASON_DISCONNECTED] = "Disconnected", 7071 [OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED] = 7072 "Local media not installed", 7073 [OPA_LINKDOWN_REASON_NOT_INSTALLED] = "Not installed", 7074 [OPA_LINKDOWN_REASON_CHASSIS_CONFIG] = "Chassis config", 7075 [OPA_LINKDOWN_REASON_END_TO_END_NOT_INSTALLED] = 7076 "End to end not installed", 7077 [OPA_LINKDOWN_REASON_POWER_POLICY] = "Power policy", 7078 [OPA_LINKDOWN_REASON_LINKSPEED_POLICY] = "Link speed policy", 7079 [OPA_LINKDOWN_REASON_LINKWIDTH_POLICY] = "Link width policy", 7080 [OPA_LINKDOWN_REASON_SWITCH_MGMT] = "Switch management", 7081 [OPA_LINKDOWN_REASON_SMA_DISABLED] = "SMA disabled", 7082 [OPA_LINKDOWN_REASON_TRANSIENT] = "Transient" 7083 }; 7084 7085 /* return the neighbor link down reason string */ 7086 static const char *link_down_reason_str(u8 reason) 7087 { 7088 const char *str = NULL; 7089 7090 if (reason < ARRAY_SIZE(link_down_reason_strs)) 7091 str = link_down_reason_strs[reason]; 7092 if (!str) 7093 str = "(invalid)"; 7094 7095 return str; 7096 } 7097 7098 /* 7099 * Handle a link down interrupt from the 8051. 7100 * 7101 * This is a work-queue function outside of the interrupt. 7102 */ 7103 void handle_link_down(struct work_struct *work) 7104 { 7105 u8 lcl_reason, neigh_reason = 0; 7106 u8 link_down_reason; 7107 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7108 link_down_work); 7109 int was_up; 7110 static const char ldr_str[] = "Link down reason: "; 7111 7112 if ((ppd->host_link_state & 7113 (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) && 7114 ppd->port_type == PORT_TYPE_FIXED) 7115 ppd->offline_disabled_reason = 7116 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NOT_INSTALLED); 7117 7118 /* Go offline first, then deal with reading/writing through 8051 */ 7119 was_up = !!(ppd->host_link_state & HLS_UP); 7120 set_link_state(ppd, HLS_DN_OFFLINE); 7121 xchg(&ppd->is_link_down_queued, 0); 7122 7123 if (was_up) { 7124 lcl_reason = 0; 7125 /* link down reason is only valid if the link was up */ 7126 read_link_down_reason(ppd->dd, &link_down_reason); 7127 switch (link_down_reason) { 7128 case LDR_LINK_TRANSFER_ACTIVE_LOW: 7129 /* the link went down, no idle message reason */ 7130 dd_dev_info(ppd->dd, "%sUnexpected link down\n", 7131 ldr_str); 7132 break; 7133 case LDR_RECEIVED_LINKDOWN_IDLE_MSG: 7134 /* 7135 * The neighbor reason is only valid if an idle message 7136 * was received for it. 7137 */ 7138 read_planned_down_reason_code(ppd->dd, &neigh_reason); 7139 dd_dev_info(ppd->dd, 7140 "%sNeighbor link down message %d, %s\n", 7141 ldr_str, neigh_reason, 7142 link_down_reason_str(neigh_reason)); 7143 break; 7144 case LDR_RECEIVED_HOST_OFFLINE_REQ: 7145 dd_dev_info(ppd->dd, 7146 "%sHost requested link to go offline\n", 7147 ldr_str); 7148 break; 7149 default: 7150 dd_dev_info(ppd->dd, "%sUnknown reason 0x%x\n", 7151 ldr_str, link_down_reason); 7152 break; 7153 } 7154 7155 /* 7156 * If no reason, assume peer-initiated but missed 7157 * LinkGoingDown idle flits. 7158 */ 7159 if (neigh_reason == 0) 7160 lcl_reason = OPA_LINKDOWN_REASON_NEIGHBOR_UNKNOWN; 7161 } else { 7162 /* went down while polling or going up */ 7163 lcl_reason = OPA_LINKDOWN_REASON_TRANSIENT; 7164 } 7165 7166 set_link_down_reason(ppd, lcl_reason, neigh_reason, 0); 7167 7168 /* inform the SMA when the link transitions from up to down */ 7169 if (was_up && ppd->local_link_down_reason.sma == 0 && 7170 ppd->neigh_link_down_reason.sma == 0) { 7171 ppd->local_link_down_reason.sma = 7172 ppd->local_link_down_reason.latest; 7173 ppd->neigh_link_down_reason.sma = 7174 ppd->neigh_link_down_reason.latest; 7175 } 7176 7177 reset_neighbor_info(ppd); 7178 7179 /* disable the port */ 7180 clear_rcvctrl(ppd->dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 7181 7182 /* 7183 * If there is no cable attached, turn the DC off. Otherwise, 7184 * start the link bring up. 7185 */ 7186 if (ppd->port_type == PORT_TYPE_QSFP && !qsfp_mod_present(ppd)) 7187 dc_shutdown(ppd->dd); 7188 else 7189 start_link(ppd); 7190 } 7191 7192 void handle_link_bounce(struct work_struct *work) 7193 { 7194 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7195 link_bounce_work); 7196 7197 /* 7198 * Only do something if the link is currently up. 7199 */ 7200 if (ppd->host_link_state & HLS_UP) { 7201 set_link_state(ppd, HLS_DN_OFFLINE); 7202 start_link(ppd); 7203 } else { 7204 dd_dev_info(ppd->dd, "%s: link not up (%s), nothing to do\n", 7205 __func__, link_state_name(ppd->host_link_state)); 7206 } 7207 } 7208 7209 /* 7210 * Mask conversion: Capability exchange to Port LTP. The capability 7211 * exchange has an implicit 16b CRC that is mandatory. 7212 */ 7213 static int cap_to_port_ltp(int cap) 7214 { 7215 int port_ltp = PORT_LTP_CRC_MODE_16; /* this mode is mandatory */ 7216 7217 if (cap & CAP_CRC_14B) 7218 port_ltp |= PORT_LTP_CRC_MODE_14; 7219 if (cap & CAP_CRC_48B) 7220 port_ltp |= PORT_LTP_CRC_MODE_48; 7221 if (cap & CAP_CRC_12B_16B_PER_LANE) 7222 port_ltp |= PORT_LTP_CRC_MODE_PER_LANE; 7223 7224 return port_ltp; 7225 } 7226 7227 /* 7228 * Convert an OPA Port LTP mask to capability mask 7229 */ 7230 int port_ltp_to_cap(int port_ltp) 7231 { 7232 int cap_mask = 0; 7233 7234 if (port_ltp & PORT_LTP_CRC_MODE_14) 7235 cap_mask |= CAP_CRC_14B; 7236 if (port_ltp & PORT_LTP_CRC_MODE_48) 7237 cap_mask |= CAP_CRC_48B; 7238 if (port_ltp & PORT_LTP_CRC_MODE_PER_LANE) 7239 cap_mask |= CAP_CRC_12B_16B_PER_LANE; 7240 7241 return cap_mask; 7242 } 7243 7244 /* 7245 * Convert a single DC LCB CRC mode to an OPA Port LTP mask. 7246 */ 7247 static int lcb_to_port_ltp(int lcb_crc) 7248 { 7249 int port_ltp = 0; 7250 7251 if (lcb_crc == LCB_CRC_12B_16B_PER_LANE) 7252 port_ltp = PORT_LTP_CRC_MODE_PER_LANE; 7253 else if (lcb_crc == LCB_CRC_48B) 7254 port_ltp = PORT_LTP_CRC_MODE_48; 7255 else if (lcb_crc == LCB_CRC_14B) 7256 port_ltp = PORT_LTP_CRC_MODE_14; 7257 else 7258 port_ltp = PORT_LTP_CRC_MODE_16; 7259 7260 return port_ltp; 7261 } 7262 7263 static void clear_full_mgmt_pkey(struct hfi1_pportdata *ppd) 7264 { 7265 if (ppd->pkeys[2] != 0) { 7266 ppd->pkeys[2] = 0; 7267 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0); 7268 hfi1_event_pkey_change(ppd->dd, ppd->port); 7269 } 7270 } 7271 7272 /* 7273 * Convert the given link width to the OPA link width bitmask. 7274 */ 7275 static u16 link_width_to_bits(struct hfi1_devdata *dd, u16 width) 7276 { 7277 switch (width) { 7278 case 0: 7279 /* 7280 * Simulator and quick linkup do not set the width. 7281 * Just set it to 4x without complaint. 7282 */ 7283 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR || quick_linkup) 7284 return OPA_LINK_WIDTH_4X; 7285 return 0; /* no lanes up */ 7286 case 1: return OPA_LINK_WIDTH_1X; 7287 case 2: return OPA_LINK_WIDTH_2X; 7288 case 3: return OPA_LINK_WIDTH_3X; 7289 default: 7290 dd_dev_info(dd, "%s: invalid width %d, using 4\n", 7291 __func__, width); 7292 /* fall through */ 7293 case 4: return OPA_LINK_WIDTH_4X; 7294 } 7295 } 7296 7297 /* 7298 * Do a population count on the bottom nibble. 7299 */ 7300 static const u8 bit_counts[16] = { 7301 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4 7302 }; 7303 7304 static inline u8 nibble_to_count(u8 nibble) 7305 { 7306 return bit_counts[nibble & 0xf]; 7307 } 7308 7309 /* 7310 * Read the active lane information from the 8051 registers and return 7311 * their widths. 7312 * 7313 * Active lane information is found in these 8051 registers: 7314 * enable_lane_tx 7315 * enable_lane_rx 7316 */ 7317 static void get_link_widths(struct hfi1_devdata *dd, u16 *tx_width, 7318 u16 *rx_width) 7319 { 7320 u16 tx, rx; 7321 u8 enable_lane_rx; 7322 u8 enable_lane_tx; 7323 u8 tx_polarity_inversion; 7324 u8 rx_polarity_inversion; 7325 u8 max_rate; 7326 7327 /* read the active lanes */ 7328 read_tx_settings(dd, &enable_lane_tx, &tx_polarity_inversion, 7329 &rx_polarity_inversion, &max_rate); 7330 read_local_lni(dd, &enable_lane_rx); 7331 7332 /* convert to counts */ 7333 tx = nibble_to_count(enable_lane_tx); 7334 rx = nibble_to_count(enable_lane_rx); 7335 7336 /* 7337 * Set link_speed_active here, overriding what was set in 7338 * handle_verify_cap(). The ASIC 8051 firmware does not correctly 7339 * set the max_rate field in handle_verify_cap until v0.19. 7340 */ 7341 if ((dd->icode == ICODE_RTL_SILICON) && 7342 (dd->dc8051_ver < dc8051_ver(0, 19, 0))) { 7343 /* max_rate: 0 = 12.5G, 1 = 25G */ 7344 switch (max_rate) { 7345 case 0: 7346 dd->pport[0].link_speed_active = OPA_LINK_SPEED_12_5G; 7347 break; 7348 default: 7349 dd_dev_err(dd, 7350 "%s: unexpected max rate %d, using 25Gb\n", 7351 __func__, (int)max_rate); 7352 /* fall through */ 7353 case 1: 7354 dd->pport[0].link_speed_active = OPA_LINK_SPEED_25G; 7355 break; 7356 } 7357 } 7358 7359 dd_dev_info(dd, 7360 "Fabric active lanes (width): tx 0x%x (%d), rx 0x%x (%d)\n", 7361 enable_lane_tx, tx, enable_lane_rx, rx); 7362 *tx_width = link_width_to_bits(dd, tx); 7363 *rx_width = link_width_to_bits(dd, rx); 7364 } 7365 7366 /* 7367 * Read verify_cap_local_fm_link_width[1] to obtain the link widths. 7368 * Valid after the end of VerifyCap and during LinkUp. Does not change 7369 * after link up. I.e. look elsewhere for downgrade information. 7370 * 7371 * Bits are: 7372 * + bits [7:4] contain the number of active transmitters 7373 * + bits [3:0] contain the number of active receivers 7374 * These are numbers 1 through 4 and can be different values if the 7375 * link is asymmetric. 7376 * 7377 * verify_cap_local_fm_link_width[0] retains its original value. 7378 */ 7379 static void get_linkup_widths(struct hfi1_devdata *dd, u16 *tx_width, 7380 u16 *rx_width) 7381 { 7382 u16 widths, tx, rx; 7383 u8 misc_bits, local_flags; 7384 u16 active_tx, active_rx; 7385 7386 read_vc_local_link_mode(dd, &misc_bits, &local_flags, &widths); 7387 tx = widths >> 12; 7388 rx = (widths >> 8) & 0xf; 7389 7390 *tx_width = link_width_to_bits(dd, tx); 7391 *rx_width = link_width_to_bits(dd, rx); 7392 7393 /* print the active widths */ 7394 get_link_widths(dd, &active_tx, &active_rx); 7395 } 7396 7397 /* 7398 * Set ppd->link_width_active and ppd->link_width_downgrade_active using 7399 * hardware information when the link first comes up. 7400 * 7401 * The link width is not available until after VerifyCap.AllFramesReceived 7402 * (the trigger for handle_verify_cap), so this is outside that routine 7403 * and should be called when the 8051 signals linkup. 7404 */ 7405 void get_linkup_link_widths(struct hfi1_pportdata *ppd) 7406 { 7407 u16 tx_width, rx_width; 7408 7409 /* get end-of-LNI link widths */ 7410 get_linkup_widths(ppd->dd, &tx_width, &rx_width); 7411 7412 /* use tx_width as the link is supposed to be symmetric on link up */ 7413 ppd->link_width_active = tx_width; 7414 /* link width downgrade active (LWD.A) starts out matching LW.A */ 7415 ppd->link_width_downgrade_tx_active = ppd->link_width_active; 7416 ppd->link_width_downgrade_rx_active = ppd->link_width_active; 7417 /* per OPA spec, on link up LWD.E resets to LWD.S */ 7418 ppd->link_width_downgrade_enabled = ppd->link_width_downgrade_supported; 7419 /* cache the active egress rate (units {10^6 bits/sec]) */ 7420 ppd->current_egress_rate = active_egress_rate(ppd); 7421 } 7422 7423 /* 7424 * Handle a verify capabilities interrupt from the 8051. 7425 * 7426 * This is a work-queue function outside of the interrupt. 7427 */ 7428 void handle_verify_cap(struct work_struct *work) 7429 { 7430 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7431 link_vc_work); 7432 struct hfi1_devdata *dd = ppd->dd; 7433 u64 reg; 7434 u8 power_management; 7435 u8 continuous; 7436 u8 vcu; 7437 u8 vau; 7438 u8 z; 7439 u16 vl15buf; 7440 u16 link_widths; 7441 u16 crc_mask; 7442 u16 crc_val; 7443 u16 device_id; 7444 u16 active_tx, active_rx; 7445 u8 partner_supported_crc; 7446 u8 remote_tx_rate; 7447 u8 device_rev; 7448 7449 set_link_state(ppd, HLS_VERIFY_CAP); 7450 7451 lcb_shutdown(dd, 0); 7452 adjust_lcb_for_fpga_serdes(dd); 7453 7454 read_vc_remote_phy(dd, &power_management, &continuous); 7455 read_vc_remote_fabric(dd, &vau, &z, &vcu, &vl15buf, 7456 &partner_supported_crc); 7457 read_vc_remote_link_width(dd, &remote_tx_rate, &link_widths); 7458 read_remote_device_id(dd, &device_id, &device_rev); 7459 7460 /* print the active widths */ 7461 get_link_widths(dd, &active_tx, &active_rx); 7462 dd_dev_info(dd, 7463 "Peer PHY: power management 0x%x, continuous updates 0x%x\n", 7464 (int)power_management, (int)continuous); 7465 dd_dev_info(dd, 7466 "Peer Fabric: vAU %d, Z %d, vCU %d, vl15 credits 0x%x, CRC sizes 0x%x\n", 7467 (int)vau, (int)z, (int)vcu, (int)vl15buf, 7468 (int)partner_supported_crc); 7469 dd_dev_info(dd, "Peer Link Width: tx rate 0x%x, widths 0x%x\n", 7470 (u32)remote_tx_rate, (u32)link_widths); 7471 dd_dev_info(dd, "Peer Device ID: 0x%04x, Revision 0x%02x\n", 7472 (u32)device_id, (u32)device_rev); 7473 /* 7474 * The peer vAU value just read is the peer receiver value. HFI does 7475 * not support a transmit vAU of 0 (AU == 8). We advertised that 7476 * with Z=1 in the fabric capabilities sent to the peer. The peer 7477 * will see our Z=1, and, if it advertised a vAU of 0, will move its 7478 * receive to vAU of 1 (AU == 16). Do the same here. We do not care 7479 * about the peer Z value - our sent vAU is 3 (hardwired) and is not 7480 * subject to the Z value exception. 7481 */ 7482 if (vau == 0) 7483 vau = 1; 7484 set_up_vau(dd, vau); 7485 7486 /* 7487 * Set VL15 credits to 0 in global credit register. Cache remote VL15 7488 * credits value and wait for link-up interrupt ot set it. 7489 */ 7490 set_up_vl15(dd, 0); 7491 dd->vl15buf_cached = vl15buf; 7492 7493 /* set up the LCB CRC mode */ 7494 crc_mask = ppd->port_crc_mode_enabled & partner_supported_crc; 7495 7496 /* order is important: use the lowest bit in common */ 7497 if (crc_mask & CAP_CRC_14B) 7498 crc_val = LCB_CRC_14B; 7499 else if (crc_mask & CAP_CRC_48B) 7500 crc_val = LCB_CRC_48B; 7501 else if (crc_mask & CAP_CRC_12B_16B_PER_LANE) 7502 crc_val = LCB_CRC_12B_16B_PER_LANE; 7503 else 7504 crc_val = LCB_CRC_16B; 7505 7506 dd_dev_info(dd, "Final LCB CRC mode: %d\n", (int)crc_val); 7507 write_csr(dd, DC_LCB_CFG_CRC_MODE, 7508 (u64)crc_val << DC_LCB_CFG_CRC_MODE_TX_VAL_SHIFT); 7509 7510 /* set (14b only) or clear sideband credit */ 7511 reg = read_csr(dd, SEND_CM_CTRL); 7512 if (crc_val == LCB_CRC_14B && crc_14b_sideband) { 7513 write_csr(dd, SEND_CM_CTRL, 7514 reg | SEND_CM_CTRL_FORCE_CREDIT_MODE_SMASK); 7515 } else { 7516 write_csr(dd, SEND_CM_CTRL, 7517 reg & ~SEND_CM_CTRL_FORCE_CREDIT_MODE_SMASK); 7518 } 7519 7520 ppd->link_speed_active = 0; /* invalid value */ 7521 if (dd->dc8051_ver < dc8051_ver(0, 20, 0)) { 7522 /* remote_tx_rate: 0 = 12.5G, 1 = 25G */ 7523 switch (remote_tx_rate) { 7524 case 0: 7525 ppd->link_speed_active = OPA_LINK_SPEED_12_5G; 7526 break; 7527 case 1: 7528 ppd->link_speed_active = OPA_LINK_SPEED_25G; 7529 break; 7530 } 7531 } else { 7532 /* actual rate is highest bit of the ANDed rates */ 7533 u8 rate = remote_tx_rate & ppd->local_tx_rate; 7534 7535 if (rate & 2) 7536 ppd->link_speed_active = OPA_LINK_SPEED_25G; 7537 else if (rate & 1) 7538 ppd->link_speed_active = OPA_LINK_SPEED_12_5G; 7539 } 7540 if (ppd->link_speed_active == 0) { 7541 dd_dev_err(dd, "%s: unexpected remote tx rate %d, using 25Gb\n", 7542 __func__, (int)remote_tx_rate); 7543 ppd->link_speed_active = OPA_LINK_SPEED_25G; 7544 } 7545 7546 /* 7547 * Cache the values of the supported, enabled, and active 7548 * LTP CRC modes to return in 'portinfo' queries. But the bit 7549 * flags that are returned in the portinfo query differ from 7550 * what's in the link_crc_mask, crc_sizes, and crc_val 7551 * variables. Convert these here. 7552 */ 7553 ppd->port_ltp_crc_mode = cap_to_port_ltp(link_crc_mask) << 8; 7554 /* supported crc modes */ 7555 ppd->port_ltp_crc_mode |= 7556 cap_to_port_ltp(ppd->port_crc_mode_enabled) << 4; 7557 /* enabled crc modes */ 7558 ppd->port_ltp_crc_mode |= lcb_to_port_ltp(crc_val); 7559 /* active crc mode */ 7560 7561 /* set up the remote credit return table */ 7562 assign_remote_cm_au_table(dd, vcu); 7563 7564 /* 7565 * The LCB is reset on entry to handle_verify_cap(), so this must 7566 * be applied on every link up. 7567 * 7568 * Adjust LCB error kill enable to kill the link if 7569 * these RBUF errors are seen: 7570 * REPLAY_BUF_MBE_SMASK 7571 * FLIT_INPUT_BUF_MBE_SMASK 7572 */ 7573 if (is_ax(dd)) { /* fixed in B0 */ 7574 reg = read_csr(dd, DC_LCB_CFG_LINK_KILL_EN); 7575 reg |= DC_LCB_CFG_LINK_KILL_EN_REPLAY_BUF_MBE_SMASK 7576 | DC_LCB_CFG_LINK_KILL_EN_FLIT_INPUT_BUF_MBE_SMASK; 7577 write_csr(dd, DC_LCB_CFG_LINK_KILL_EN, reg); 7578 } 7579 7580 /* pull LCB fifos out of reset - all fifo clocks must be stable */ 7581 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0); 7582 7583 /* give 8051 access to the LCB CSRs */ 7584 write_csr(dd, DC_LCB_ERR_EN, 0); /* mask LCB errors */ 7585 set_8051_lcb_access(dd); 7586 7587 /* tell the 8051 to go to LinkUp */ 7588 set_link_state(ppd, HLS_GOING_UP); 7589 } 7590 7591 /** 7592 * apply_link_downgrade_policy - Apply the link width downgrade enabled 7593 * policy against the current active link widths. 7594 * @ppd: info of physical Hfi port 7595 * @refresh_widths: True indicates link downgrade event 7596 * @return: True indicates a successful link downgrade. False indicates 7597 * link downgrade event failed and the link will bounce back to 7598 * default link width. 7599 * 7600 * Called when the enabled policy changes or the active link widths 7601 * change. 7602 * Refresh_widths indicates that a link downgrade occurred. The 7603 * link_downgraded variable is set by refresh_widths and 7604 * determines the success/failure of the policy application. 7605 */ 7606 bool apply_link_downgrade_policy(struct hfi1_pportdata *ppd, 7607 bool refresh_widths) 7608 { 7609 int do_bounce = 0; 7610 int tries; 7611 u16 lwde; 7612 u16 tx, rx; 7613 bool link_downgraded = refresh_widths; 7614 7615 /* use the hls lock to avoid a race with actual link up */ 7616 tries = 0; 7617 retry: 7618 mutex_lock(&ppd->hls_lock); 7619 /* only apply if the link is up */ 7620 if (ppd->host_link_state & HLS_DOWN) { 7621 /* still going up..wait and retry */ 7622 if (ppd->host_link_state & HLS_GOING_UP) { 7623 if (++tries < 1000) { 7624 mutex_unlock(&ppd->hls_lock); 7625 usleep_range(100, 120); /* arbitrary */ 7626 goto retry; 7627 } 7628 dd_dev_err(ppd->dd, 7629 "%s: giving up waiting for link state change\n", 7630 __func__); 7631 } 7632 goto done; 7633 } 7634 7635 lwde = ppd->link_width_downgrade_enabled; 7636 7637 if (refresh_widths) { 7638 get_link_widths(ppd->dd, &tx, &rx); 7639 ppd->link_width_downgrade_tx_active = tx; 7640 ppd->link_width_downgrade_rx_active = rx; 7641 } 7642 7643 if (ppd->link_width_downgrade_tx_active == 0 || 7644 ppd->link_width_downgrade_rx_active == 0) { 7645 /* the 8051 reported a dead link as a downgrade */ 7646 dd_dev_err(ppd->dd, "Link downgrade is really a link down, ignoring\n"); 7647 link_downgraded = false; 7648 } else if (lwde == 0) { 7649 /* downgrade is disabled */ 7650 7651 /* bounce if not at starting active width */ 7652 if ((ppd->link_width_active != 7653 ppd->link_width_downgrade_tx_active) || 7654 (ppd->link_width_active != 7655 ppd->link_width_downgrade_rx_active)) { 7656 dd_dev_err(ppd->dd, 7657 "Link downgrade is disabled and link has downgraded, downing link\n"); 7658 dd_dev_err(ppd->dd, 7659 " original 0x%x, tx active 0x%x, rx active 0x%x\n", 7660 ppd->link_width_active, 7661 ppd->link_width_downgrade_tx_active, 7662 ppd->link_width_downgrade_rx_active); 7663 do_bounce = 1; 7664 link_downgraded = false; 7665 } 7666 } else if ((lwde & ppd->link_width_downgrade_tx_active) == 0 || 7667 (lwde & ppd->link_width_downgrade_rx_active) == 0) { 7668 /* Tx or Rx is outside the enabled policy */ 7669 dd_dev_err(ppd->dd, 7670 "Link is outside of downgrade allowed, downing link\n"); 7671 dd_dev_err(ppd->dd, 7672 " enabled 0x%x, tx active 0x%x, rx active 0x%x\n", 7673 lwde, ppd->link_width_downgrade_tx_active, 7674 ppd->link_width_downgrade_rx_active); 7675 do_bounce = 1; 7676 link_downgraded = false; 7677 } 7678 7679 done: 7680 mutex_unlock(&ppd->hls_lock); 7681 7682 if (do_bounce) { 7683 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_WIDTH_POLICY, 0, 7684 OPA_LINKDOWN_REASON_WIDTH_POLICY); 7685 set_link_state(ppd, HLS_DN_OFFLINE); 7686 start_link(ppd); 7687 } 7688 7689 return link_downgraded; 7690 } 7691 7692 /* 7693 * Handle a link downgrade interrupt from the 8051. 7694 * 7695 * This is a work-queue function outside of the interrupt. 7696 */ 7697 void handle_link_downgrade(struct work_struct *work) 7698 { 7699 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 7700 link_downgrade_work); 7701 7702 dd_dev_info(ppd->dd, "8051: Link width downgrade\n"); 7703 if (apply_link_downgrade_policy(ppd, true)) 7704 update_xmit_counters(ppd, ppd->link_width_downgrade_tx_active); 7705 } 7706 7707 static char *dcc_err_string(char *buf, int buf_len, u64 flags) 7708 { 7709 return flag_string(buf, buf_len, flags, dcc_err_flags, 7710 ARRAY_SIZE(dcc_err_flags)); 7711 } 7712 7713 static char *lcb_err_string(char *buf, int buf_len, u64 flags) 7714 { 7715 return flag_string(buf, buf_len, flags, lcb_err_flags, 7716 ARRAY_SIZE(lcb_err_flags)); 7717 } 7718 7719 static char *dc8051_err_string(char *buf, int buf_len, u64 flags) 7720 { 7721 return flag_string(buf, buf_len, flags, dc8051_err_flags, 7722 ARRAY_SIZE(dc8051_err_flags)); 7723 } 7724 7725 static char *dc8051_info_err_string(char *buf, int buf_len, u64 flags) 7726 { 7727 return flag_string(buf, buf_len, flags, dc8051_info_err_flags, 7728 ARRAY_SIZE(dc8051_info_err_flags)); 7729 } 7730 7731 static char *dc8051_info_host_msg_string(char *buf, int buf_len, u64 flags) 7732 { 7733 return flag_string(buf, buf_len, flags, dc8051_info_host_msg_flags, 7734 ARRAY_SIZE(dc8051_info_host_msg_flags)); 7735 } 7736 7737 static void handle_8051_interrupt(struct hfi1_devdata *dd, u32 unused, u64 reg) 7738 { 7739 struct hfi1_pportdata *ppd = dd->pport; 7740 u64 info, err, host_msg; 7741 int queue_link_down = 0; 7742 char buf[96]; 7743 7744 /* look at the flags */ 7745 if (reg & DC_DC8051_ERR_FLG_SET_BY_8051_SMASK) { 7746 /* 8051 information set by firmware */ 7747 /* read DC8051_DBG_ERR_INFO_SET_BY_8051 for details */ 7748 info = read_csr(dd, DC_DC8051_DBG_ERR_INFO_SET_BY_8051); 7749 err = (info >> DC_DC8051_DBG_ERR_INFO_SET_BY_8051_ERROR_SHIFT) 7750 & DC_DC8051_DBG_ERR_INFO_SET_BY_8051_ERROR_MASK; 7751 host_msg = (info >> 7752 DC_DC8051_DBG_ERR_INFO_SET_BY_8051_HOST_MSG_SHIFT) 7753 & DC_DC8051_DBG_ERR_INFO_SET_BY_8051_HOST_MSG_MASK; 7754 7755 /* 7756 * Handle error flags. 7757 */ 7758 if (err & FAILED_LNI) { 7759 /* 7760 * LNI error indications are cleared by the 8051 7761 * only when starting polling. Only pay attention 7762 * to them when in the states that occur during 7763 * LNI. 7764 */ 7765 if (ppd->host_link_state 7766 & (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) { 7767 queue_link_down = 1; 7768 dd_dev_info(dd, "Link error: %s\n", 7769 dc8051_info_err_string(buf, 7770 sizeof(buf), 7771 err & 7772 FAILED_LNI)); 7773 } 7774 err &= ~(u64)FAILED_LNI; 7775 } 7776 /* unknown frames can happen durning LNI, just count */ 7777 if (err & UNKNOWN_FRAME) { 7778 ppd->unknown_frame_count++; 7779 err &= ~(u64)UNKNOWN_FRAME; 7780 } 7781 if (err) { 7782 /* report remaining errors, but do not do anything */ 7783 dd_dev_err(dd, "8051 info error: %s\n", 7784 dc8051_info_err_string(buf, sizeof(buf), 7785 err)); 7786 } 7787 7788 /* 7789 * Handle host message flags. 7790 */ 7791 if (host_msg & HOST_REQ_DONE) { 7792 /* 7793 * Presently, the driver does a busy wait for 7794 * host requests to complete. This is only an 7795 * informational message. 7796 * NOTE: The 8051 clears the host message 7797 * information *on the next 8051 command*. 7798 * Therefore, when linkup is achieved, 7799 * this flag will still be set. 7800 */ 7801 host_msg &= ~(u64)HOST_REQ_DONE; 7802 } 7803 if (host_msg & BC_SMA_MSG) { 7804 queue_work(ppd->link_wq, &ppd->sma_message_work); 7805 host_msg &= ~(u64)BC_SMA_MSG; 7806 } 7807 if (host_msg & LINKUP_ACHIEVED) { 7808 dd_dev_info(dd, "8051: Link up\n"); 7809 queue_work(ppd->link_wq, &ppd->link_up_work); 7810 host_msg &= ~(u64)LINKUP_ACHIEVED; 7811 } 7812 if (host_msg & EXT_DEVICE_CFG_REQ) { 7813 handle_8051_request(ppd); 7814 host_msg &= ~(u64)EXT_DEVICE_CFG_REQ; 7815 } 7816 if (host_msg & VERIFY_CAP_FRAME) { 7817 queue_work(ppd->link_wq, &ppd->link_vc_work); 7818 host_msg &= ~(u64)VERIFY_CAP_FRAME; 7819 } 7820 if (host_msg & LINK_GOING_DOWN) { 7821 const char *extra = ""; 7822 /* no downgrade action needed if going down */ 7823 if (host_msg & LINK_WIDTH_DOWNGRADED) { 7824 host_msg &= ~(u64)LINK_WIDTH_DOWNGRADED; 7825 extra = " (ignoring downgrade)"; 7826 } 7827 dd_dev_info(dd, "8051: Link down%s\n", extra); 7828 queue_link_down = 1; 7829 host_msg &= ~(u64)LINK_GOING_DOWN; 7830 } 7831 if (host_msg & LINK_WIDTH_DOWNGRADED) { 7832 queue_work(ppd->link_wq, &ppd->link_downgrade_work); 7833 host_msg &= ~(u64)LINK_WIDTH_DOWNGRADED; 7834 } 7835 if (host_msg) { 7836 /* report remaining messages, but do not do anything */ 7837 dd_dev_info(dd, "8051 info host message: %s\n", 7838 dc8051_info_host_msg_string(buf, 7839 sizeof(buf), 7840 host_msg)); 7841 } 7842 7843 reg &= ~DC_DC8051_ERR_FLG_SET_BY_8051_SMASK; 7844 } 7845 if (reg & DC_DC8051_ERR_FLG_LOST_8051_HEART_BEAT_SMASK) { 7846 /* 7847 * Lost the 8051 heartbeat. If this happens, we 7848 * receive constant interrupts about it. Disable 7849 * the interrupt after the first. 7850 */ 7851 dd_dev_err(dd, "Lost 8051 heartbeat\n"); 7852 write_csr(dd, DC_DC8051_ERR_EN, 7853 read_csr(dd, DC_DC8051_ERR_EN) & 7854 ~DC_DC8051_ERR_EN_LOST_8051_HEART_BEAT_SMASK); 7855 7856 reg &= ~DC_DC8051_ERR_FLG_LOST_8051_HEART_BEAT_SMASK; 7857 } 7858 if (reg) { 7859 /* report the error, but do not do anything */ 7860 dd_dev_err(dd, "8051 error: %s\n", 7861 dc8051_err_string(buf, sizeof(buf), reg)); 7862 } 7863 7864 if (queue_link_down) { 7865 /* 7866 * if the link is already going down or disabled, do not 7867 * queue another. If there's a link down entry already 7868 * queued, don't queue another one. 7869 */ 7870 if ((ppd->host_link_state & 7871 (HLS_GOING_OFFLINE | HLS_LINK_COOLDOWN)) || 7872 ppd->link_enabled == 0) { 7873 dd_dev_info(dd, "%s: not queuing link down. host_link_state %x, link_enabled %x\n", 7874 __func__, ppd->host_link_state, 7875 ppd->link_enabled); 7876 } else { 7877 if (xchg(&ppd->is_link_down_queued, 1) == 1) 7878 dd_dev_info(dd, 7879 "%s: link down request already queued\n", 7880 __func__); 7881 else 7882 queue_work(ppd->link_wq, &ppd->link_down_work); 7883 } 7884 } 7885 } 7886 7887 static const char * const fm_config_txt[] = { 7888 [0] = 7889 "BadHeadDist: Distance violation between two head flits", 7890 [1] = 7891 "BadTailDist: Distance violation between two tail flits", 7892 [2] = 7893 "BadCtrlDist: Distance violation between two credit control flits", 7894 [3] = 7895 "BadCrdAck: Credits return for unsupported VL", 7896 [4] = 7897 "UnsupportedVLMarker: Received VL Marker", 7898 [5] = 7899 "BadPreempt: Exceeded the preemption nesting level", 7900 [6] = 7901 "BadControlFlit: Received unsupported control flit", 7902 /* no 7 */ 7903 [8] = 7904 "UnsupportedVLMarker: Received VL Marker for unconfigured or disabled VL", 7905 }; 7906 7907 static const char * const port_rcv_txt[] = { 7908 [1] = 7909 "BadPktLen: Illegal PktLen", 7910 [2] = 7911 "PktLenTooLong: Packet longer than PktLen", 7912 [3] = 7913 "PktLenTooShort: Packet shorter than PktLen", 7914 [4] = 7915 "BadSLID: Illegal SLID (0, using multicast as SLID, does not include security validation of SLID)", 7916 [5] = 7917 "BadDLID: Illegal DLID (0, doesn't match HFI)", 7918 [6] = 7919 "BadL2: Illegal L2 opcode", 7920 [7] = 7921 "BadSC: Unsupported SC", 7922 [9] = 7923 "BadRC: Illegal RC", 7924 [11] = 7925 "PreemptError: Preempting with same VL", 7926 [12] = 7927 "PreemptVL15: Preempting a VL15 packet", 7928 }; 7929 7930 #define OPA_LDR_FMCONFIG_OFFSET 16 7931 #define OPA_LDR_PORTRCV_OFFSET 0 7932 static void handle_dcc_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 7933 { 7934 u64 info, hdr0, hdr1; 7935 const char *extra; 7936 char buf[96]; 7937 struct hfi1_pportdata *ppd = dd->pport; 7938 u8 lcl_reason = 0; 7939 int do_bounce = 0; 7940 7941 if (reg & DCC_ERR_FLG_UNCORRECTABLE_ERR_SMASK) { 7942 if (!(dd->err_info_uncorrectable & OPA_EI_STATUS_SMASK)) { 7943 info = read_csr(dd, DCC_ERR_INFO_UNCORRECTABLE); 7944 dd->err_info_uncorrectable = info & OPA_EI_CODE_SMASK; 7945 /* set status bit */ 7946 dd->err_info_uncorrectable |= OPA_EI_STATUS_SMASK; 7947 } 7948 reg &= ~DCC_ERR_FLG_UNCORRECTABLE_ERR_SMASK; 7949 } 7950 7951 if (reg & DCC_ERR_FLG_LINK_ERR_SMASK) { 7952 struct hfi1_pportdata *ppd = dd->pport; 7953 /* this counter saturates at (2^32) - 1 */ 7954 if (ppd->link_downed < (u32)UINT_MAX) 7955 ppd->link_downed++; 7956 reg &= ~DCC_ERR_FLG_LINK_ERR_SMASK; 7957 } 7958 7959 if (reg & DCC_ERR_FLG_FMCONFIG_ERR_SMASK) { 7960 u8 reason_valid = 1; 7961 7962 info = read_csr(dd, DCC_ERR_INFO_FMCONFIG); 7963 if (!(dd->err_info_fmconfig & OPA_EI_STATUS_SMASK)) { 7964 dd->err_info_fmconfig = info & OPA_EI_CODE_SMASK; 7965 /* set status bit */ 7966 dd->err_info_fmconfig |= OPA_EI_STATUS_SMASK; 7967 } 7968 switch (info) { 7969 case 0: 7970 case 1: 7971 case 2: 7972 case 3: 7973 case 4: 7974 case 5: 7975 case 6: 7976 extra = fm_config_txt[info]; 7977 break; 7978 case 8: 7979 extra = fm_config_txt[info]; 7980 if (ppd->port_error_action & 7981 OPA_PI_MASK_FM_CFG_UNSUPPORTED_VL_MARKER) { 7982 do_bounce = 1; 7983 /* 7984 * lcl_reason cannot be derived from info 7985 * for this error 7986 */ 7987 lcl_reason = 7988 OPA_LINKDOWN_REASON_UNSUPPORTED_VL_MARKER; 7989 } 7990 break; 7991 default: 7992 reason_valid = 0; 7993 snprintf(buf, sizeof(buf), "reserved%lld", info); 7994 extra = buf; 7995 break; 7996 } 7997 7998 if (reason_valid && !do_bounce) { 7999 do_bounce = ppd->port_error_action & 8000 (1 << (OPA_LDR_FMCONFIG_OFFSET + info)); 8001 lcl_reason = info + OPA_LINKDOWN_REASON_BAD_HEAD_DIST; 8002 } 8003 8004 /* just report this */ 8005 dd_dev_info_ratelimited(dd, "DCC Error: fmconfig error: %s\n", 8006 extra); 8007 reg &= ~DCC_ERR_FLG_FMCONFIG_ERR_SMASK; 8008 } 8009 8010 if (reg & DCC_ERR_FLG_RCVPORT_ERR_SMASK) { 8011 u8 reason_valid = 1; 8012 8013 info = read_csr(dd, DCC_ERR_INFO_PORTRCV); 8014 hdr0 = read_csr(dd, DCC_ERR_INFO_PORTRCV_HDR0); 8015 hdr1 = read_csr(dd, DCC_ERR_INFO_PORTRCV_HDR1); 8016 if (!(dd->err_info_rcvport.status_and_code & 8017 OPA_EI_STATUS_SMASK)) { 8018 dd->err_info_rcvport.status_and_code = 8019 info & OPA_EI_CODE_SMASK; 8020 /* set status bit */ 8021 dd->err_info_rcvport.status_and_code |= 8022 OPA_EI_STATUS_SMASK; 8023 /* 8024 * save first 2 flits in the packet that caused 8025 * the error 8026 */ 8027 dd->err_info_rcvport.packet_flit1 = hdr0; 8028 dd->err_info_rcvport.packet_flit2 = hdr1; 8029 } 8030 switch (info) { 8031 case 1: 8032 case 2: 8033 case 3: 8034 case 4: 8035 case 5: 8036 case 6: 8037 case 7: 8038 case 9: 8039 case 11: 8040 case 12: 8041 extra = port_rcv_txt[info]; 8042 break; 8043 default: 8044 reason_valid = 0; 8045 snprintf(buf, sizeof(buf), "reserved%lld", info); 8046 extra = buf; 8047 break; 8048 } 8049 8050 if (reason_valid && !do_bounce) { 8051 do_bounce = ppd->port_error_action & 8052 (1 << (OPA_LDR_PORTRCV_OFFSET + info)); 8053 lcl_reason = info + OPA_LINKDOWN_REASON_RCV_ERROR_0; 8054 } 8055 8056 /* just report this */ 8057 dd_dev_info_ratelimited(dd, "DCC Error: PortRcv error: %s\n" 8058 " hdr0 0x%llx, hdr1 0x%llx\n", 8059 extra, hdr0, hdr1); 8060 8061 reg &= ~DCC_ERR_FLG_RCVPORT_ERR_SMASK; 8062 } 8063 8064 if (reg & DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_UC_SMASK) { 8065 /* informative only */ 8066 dd_dev_info_ratelimited(dd, "8051 access to LCB blocked\n"); 8067 reg &= ~DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_UC_SMASK; 8068 } 8069 if (reg & DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_HOST_SMASK) { 8070 /* informative only */ 8071 dd_dev_info_ratelimited(dd, "host access to LCB blocked\n"); 8072 reg &= ~DCC_ERR_FLG_EN_CSR_ACCESS_BLOCKED_HOST_SMASK; 8073 } 8074 8075 if (unlikely(hfi1_dbg_fault_suppress_err(&dd->verbs_dev))) 8076 reg &= ~DCC_ERR_FLG_LATE_EBP_ERR_SMASK; 8077 8078 /* report any remaining errors */ 8079 if (reg) 8080 dd_dev_info_ratelimited(dd, "DCC Error: %s\n", 8081 dcc_err_string(buf, sizeof(buf), reg)); 8082 8083 if (lcl_reason == 0) 8084 lcl_reason = OPA_LINKDOWN_REASON_UNKNOWN; 8085 8086 if (do_bounce) { 8087 dd_dev_info_ratelimited(dd, "%s: PortErrorAction bounce\n", 8088 __func__); 8089 set_link_down_reason(ppd, lcl_reason, 0, lcl_reason); 8090 queue_work(ppd->link_wq, &ppd->link_bounce_work); 8091 } 8092 } 8093 8094 static void handle_lcb_err(struct hfi1_devdata *dd, u32 unused, u64 reg) 8095 { 8096 char buf[96]; 8097 8098 dd_dev_info(dd, "LCB Error: %s\n", 8099 lcb_err_string(buf, sizeof(buf), reg)); 8100 } 8101 8102 /* 8103 * CCE block DC interrupt. Source is < 8. 8104 */ 8105 static void is_dc_int(struct hfi1_devdata *dd, unsigned int source) 8106 { 8107 const struct err_reg_info *eri = &dc_errs[source]; 8108 8109 if (eri->handler) { 8110 interrupt_clear_down(dd, 0, eri); 8111 } else if (source == 3 /* dc_lbm_int */) { 8112 /* 8113 * This indicates that a parity error has occurred on the 8114 * address/control lines presented to the LBM. The error 8115 * is a single pulse, there is no associated error flag, 8116 * and it is non-maskable. This is because if a parity 8117 * error occurs on the request the request is dropped. 8118 * This should never occur, but it is nice to know if it 8119 * ever does. 8120 */ 8121 dd_dev_err(dd, "Parity error in DC LBM block\n"); 8122 } else { 8123 dd_dev_err(dd, "Invalid DC interrupt %u\n", source); 8124 } 8125 } 8126 8127 /* 8128 * TX block send credit interrupt. Source is < 160. 8129 */ 8130 static void is_send_credit_int(struct hfi1_devdata *dd, unsigned int source) 8131 { 8132 sc_group_release_update(dd, source); 8133 } 8134 8135 /* 8136 * TX block SDMA interrupt. Source is < 48. 8137 * 8138 * SDMA interrupts are grouped by type: 8139 * 8140 * 0 - N-1 = SDma 8141 * N - 2N-1 = SDmaProgress 8142 * 2N - 3N-1 = SDmaIdle 8143 */ 8144 static void is_sdma_eng_int(struct hfi1_devdata *dd, unsigned int source) 8145 { 8146 /* what interrupt */ 8147 unsigned int what = source / TXE_NUM_SDMA_ENGINES; 8148 /* which engine */ 8149 unsigned int which = source % TXE_NUM_SDMA_ENGINES; 8150 8151 #ifdef CONFIG_SDMA_VERBOSITY 8152 dd_dev_err(dd, "CONFIG SDMA(%u) %s:%d %s()\n", which, 8153 slashstrip(__FILE__), __LINE__, __func__); 8154 sdma_dumpstate(&dd->per_sdma[which]); 8155 #endif 8156 8157 if (likely(what < 3 && which < dd->num_sdma)) { 8158 sdma_engine_interrupt(&dd->per_sdma[which], 1ull << source); 8159 } else { 8160 /* should not happen */ 8161 dd_dev_err(dd, "Invalid SDMA interrupt 0x%x\n", source); 8162 } 8163 } 8164 8165 /** 8166 * is_rcv_avail_int() - User receive context available IRQ handler 8167 * @dd: valid dd 8168 * @source: logical IRQ source (offset from IS_RCVAVAIL_START) 8169 * 8170 * RX block receive available interrupt. Source is < 160. 8171 * 8172 * This is the general interrupt handler for user (PSM) receive contexts, 8173 * and can only be used for non-threaded IRQs. 8174 */ 8175 static void is_rcv_avail_int(struct hfi1_devdata *dd, unsigned int source) 8176 { 8177 struct hfi1_ctxtdata *rcd; 8178 char *err_detail; 8179 8180 if (likely(source < dd->num_rcv_contexts)) { 8181 rcd = hfi1_rcd_get_by_index(dd, source); 8182 if (rcd) { 8183 handle_user_interrupt(rcd); 8184 hfi1_rcd_put(rcd); 8185 return; /* OK */ 8186 } 8187 /* received an interrupt, but no rcd */ 8188 err_detail = "dataless"; 8189 } else { 8190 /* received an interrupt, but are not using that context */ 8191 err_detail = "out of range"; 8192 } 8193 dd_dev_err(dd, "unexpected %s receive available context interrupt %u\n", 8194 err_detail, source); 8195 } 8196 8197 /** 8198 * is_rcv_urgent_int() - User receive context urgent IRQ handler 8199 * @dd: valid dd 8200 * @source: logical IRQ source (offset from IS_RCVURGENT_START) 8201 * 8202 * RX block receive urgent interrupt. Source is < 160. 8203 * 8204 * NOTE: kernel receive contexts specifically do NOT enable this IRQ. 8205 */ 8206 static void is_rcv_urgent_int(struct hfi1_devdata *dd, unsigned int source) 8207 { 8208 struct hfi1_ctxtdata *rcd; 8209 char *err_detail; 8210 8211 if (likely(source < dd->num_rcv_contexts)) { 8212 rcd = hfi1_rcd_get_by_index(dd, source); 8213 if (rcd) { 8214 handle_user_interrupt(rcd); 8215 hfi1_rcd_put(rcd); 8216 return; /* OK */ 8217 } 8218 /* received an interrupt, but no rcd */ 8219 err_detail = "dataless"; 8220 } else { 8221 /* received an interrupt, but are not using that context */ 8222 err_detail = "out of range"; 8223 } 8224 dd_dev_err(dd, "unexpected %s receive urgent context interrupt %u\n", 8225 err_detail, source); 8226 } 8227 8228 /* 8229 * Reserved range interrupt. Should not be called in normal operation. 8230 */ 8231 static void is_reserved_int(struct hfi1_devdata *dd, unsigned int source) 8232 { 8233 char name[64]; 8234 8235 dd_dev_err(dd, "unexpected %s interrupt\n", 8236 is_reserved_name(name, sizeof(name), source)); 8237 } 8238 8239 static const struct is_table is_table[] = { 8240 /* 8241 * start end 8242 * name func interrupt func 8243 */ 8244 { IS_GENERAL_ERR_START, IS_GENERAL_ERR_END, 8245 is_misc_err_name, is_misc_err_int }, 8246 { IS_SDMAENG_ERR_START, IS_SDMAENG_ERR_END, 8247 is_sdma_eng_err_name, is_sdma_eng_err_int }, 8248 { IS_SENDCTXT_ERR_START, IS_SENDCTXT_ERR_END, 8249 is_sendctxt_err_name, is_sendctxt_err_int }, 8250 { IS_SDMA_START, IS_SDMA_IDLE_END, 8251 is_sdma_eng_name, is_sdma_eng_int }, 8252 { IS_VARIOUS_START, IS_VARIOUS_END, 8253 is_various_name, is_various_int }, 8254 { IS_DC_START, IS_DC_END, 8255 is_dc_name, is_dc_int }, 8256 { IS_RCVAVAIL_START, IS_RCVAVAIL_END, 8257 is_rcv_avail_name, is_rcv_avail_int }, 8258 { IS_RCVURGENT_START, IS_RCVURGENT_END, 8259 is_rcv_urgent_name, is_rcv_urgent_int }, 8260 { IS_SENDCREDIT_START, IS_SENDCREDIT_END, 8261 is_send_credit_name, is_send_credit_int}, 8262 { IS_RESERVED_START, IS_RESERVED_END, 8263 is_reserved_name, is_reserved_int}, 8264 }; 8265 8266 /* 8267 * Interrupt source interrupt - called when the given source has an interrupt. 8268 * Source is a bit index into an array of 64-bit integers. 8269 */ 8270 static void is_interrupt(struct hfi1_devdata *dd, unsigned int source) 8271 { 8272 const struct is_table *entry; 8273 8274 /* avoids a double compare by walking the table in-order */ 8275 for (entry = &is_table[0]; entry->is_name; entry++) { 8276 if (source <= entry->end) { 8277 trace_hfi1_interrupt(dd, entry, source); 8278 entry->is_int(dd, source - entry->start); 8279 return; 8280 } 8281 } 8282 /* fell off the end */ 8283 dd_dev_err(dd, "invalid interrupt source %u\n", source); 8284 } 8285 8286 /** 8287 * gerneral_interrupt() - General interrupt handler 8288 * @irq: MSIx IRQ vector 8289 * @data: hfi1 devdata 8290 * 8291 * This is able to correctly handle all non-threaded interrupts. Receive 8292 * context DATA IRQs are threaded and are not supported by this handler. 8293 * 8294 */ 8295 irqreturn_t general_interrupt(int irq, void *data) 8296 { 8297 struct hfi1_devdata *dd = data; 8298 u64 regs[CCE_NUM_INT_CSRS]; 8299 u32 bit; 8300 int i; 8301 irqreturn_t handled = IRQ_NONE; 8302 8303 this_cpu_inc(*dd->int_counter); 8304 8305 /* phase 1: scan and clear all handled interrupts */ 8306 for (i = 0; i < CCE_NUM_INT_CSRS; i++) { 8307 if (dd->gi_mask[i] == 0) { 8308 regs[i] = 0; /* used later */ 8309 continue; 8310 } 8311 regs[i] = read_csr(dd, CCE_INT_STATUS + (8 * i)) & 8312 dd->gi_mask[i]; 8313 /* only clear if anything is set */ 8314 if (regs[i]) 8315 write_csr(dd, CCE_INT_CLEAR + (8 * i), regs[i]); 8316 } 8317 8318 /* phase 2: call the appropriate handler */ 8319 for_each_set_bit(bit, (unsigned long *)®s[0], 8320 CCE_NUM_INT_CSRS * 64) { 8321 is_interrupt(dd, bit); 8322 handled = IRQ_HANDLED; 8323 } 8324 8325 return handled; 8326 } 8327 8328 irqreturn_t sdma_interrupt(int irq, void *data) 8329 { 8330 struct sdma_engine *sde = data; 8331 struct hfi1_devdata *dd = sde->dd; 8332 u64 status; 8333 8334 #ifdef CONFIG_SDMA_VERBOSITY 8335 dd_dev_err(dd, "CONFIG SDMA(%u) %s:%d %s()\n", sde->this_idx, 8336 slashstrip(__FILE__), __LINE__, __func__); 8337 sdma_dumpstate(sde); 8338 #endif 8339 8340 this_cpu_inc(*dd->int_counter); 8341 8342 /* This read_csr is really bad in the hot path */ 8343 status = read_csr(dd, 8344 CCE_INT_STATUS + (8 * (IS_SDMA_START / 64))) 8345 & sde->imask; 8346 if (likely(status)) { 8347 /* clear the interrupt(s) */ 8348 write_csr(dd, 8349 CCE_INT_CLEAR + (8 * (IS_SDMA_START / 64)), 8350 status); 8351 8352 /* handle the interrupt(s) */ 8353 sdma_engine_interrupt(sde, status); 8354 } else { 8355 dd_dev_info_ratelimited(dd, "SDMA engine %u interrupt, but no status bits set\n", 8356 sde->this_idx); 8357 } 8358 return IRQ_HANDLED; 8359 } 8360 8361 /* 8362 * Clear the receive interrupt. Use a read of the interrupt clear CSR 8363 * to insure that the write completed. This does NOT guarantee that 8364 * queued DMA writes to memory from the chip are pushed. 8365 */ 8366 static inline void clear_recv_intr(struct hfi1_ctxtdata *rcd) 8367 { 8368 struct hfi1_devdata *dd = rcd->dd; 8369 u32 addr = CCE_INT_CLEAR + (8 * rcd->ireg); 8370 8371 write_csr(dd, addr, rcd->imask); 8372 /* force the above write on the chip and get a value back */ 8373 (void)read_csr(dd, addr); 8374 } 8375 8376 /* force the receive interrupt */ 8377 void force_recv_intr(struct hfi1_ctxtdata *rcd) 8378 { 8379 write_csr(rcd->dd, CCE_INT_FORCE + (8 * rcd->ireg), rcd->imask); 8380 } 8381 8382 /* 8383 * Return non-zero if a packet is present. 8384 * 8385 * This routine is called when rechecking for packets after the RcvAvail 8386 * interrupt has been cleared down. First, do a quick check of memory for 8387 * a packet present. If not found, use an expensive CSR read of the context 8388 * tail to determine the actual tail. The CSR read is necessary because there 8389 * is no method to push pending DMAs to memory other than an interrupt and we 8390 * are trying to determine if we need to force an interrupt. 8391 */ 8392 static inline int check_packet_present(struct hfi1_ctxtdata *rcd) 8393 { 8394 u32 tail; 8395 int present; 8396 8397 if (!rcd->rcvhdrtail_kvaddr) 8398 present = (rcd->seq_cnt == 8399 rhf_rcv_seq(rhf_to_cpu(get_rhf_addr(rcd)))); 8400 else /* is RDMA rtail */ 8401 present = (rcd->head != get_rcvhdrtail(rcd)); 8402 8403 if (present) 8404 return 1; 8405 8406 /* fall back to a CSR read, correct indpendent of DMA_RTAIL */ 8407 tail = (u32)read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_TAIL); 8408 return rcd->head != tail; 8409 } 8410 8411 /* 8412 * Receive packet IRQ handler. This routine expects to be on its own IRQ. 8413 * This routine will try to handle packets immediately (latency), but if 8414 * it finds too many, it will invoke the thread handler (bandwitdh). The 8415 * chip receive interrupt is *not* cleared down until this or the thread (if 8416 * invoked) is finished. The intent is to avoid extra interrupts while we 8417 * are processing packets anyway. 8418 */ 8419 irqreturn_t receive_context_interrupt(int irq, void *data) 8420 { 8421 struct hfi1_ctxtdata *rcd = data; 8422 struct hfi1_devdata *dd = rcd->dd; 8423 int disposition; 8424 int present; 8425 8426 trace_hfi1_receive_interrupt(dd, rcd); 8427 this_cpu_inc(*dd->int_counter); 8428 aspm_ctx_disable(rcd); 8429 8430 /* receive interrupt remains blocked while processing packets */ 8431 disposition = rcd->do_interrupt(rcd, 0); 8432 8433 /* 8434 * Too many packets were seen while processing packets in this 8435 * IRQ handler. Invoke the handler thread. The receive interrupt 8436 * remains blocked. 8437 */ 8438 if (disposition == RCV_PKT_LIMIT) 8439 return IRQ_WAKE_THREAD; 8440 8441 /* 8442 * The packet processor detected no more packets. Clear the receive 8443 * interrupt and recheck for a packet packet that may have arrived 8444 * after the previous check and interrupt clear. If a packet arrived, 8445 * force another interrupt. 8446 */ 8447 clear_recv_intr(rcd); 8448 present = check_packet_present(rcd); 8449 if (present) 8450 force_recv_intr(rcd); 8451 8452 return IRQ_HANDLED; 8453 } 8454 8455 /* 8456 * Receive packet thread handler. This expects to be invoked with the 8457 * receive interrupt still blocked. 8458 */ 8459 irqreturn_t receive_context_thread(int irq, void *data) 8460 { 8461 struct hfi1_ctxtdata *rcd = data; 8462 int present; 8463 8464 /* receive interrupt is still blocked from the IRQ handler */ 8465 (void)rcd->do_interrupt(rcd, 1); 8466 8467 /* 8468 * The packet processor will only return if it detected no more 8469 * packets. Hold IRQs here so we can safely clear the interrupt and 8470 * recheck for a packet that may have arrived after the previous 8471 * check and the interrupt clear. If a packet arrived, force another 8472 * interrupt. 8473 */ 8474 local_irq_disable(); 8475 clear_recv_intr(rcd); 8476 present = check_packet_present(rcd); 8477 if (present) 8478 force_recv_intr(rcd); 8479 local_irq_enable(); 8480 8481 return IRQ_HANDLED; 8482 } 8483 8484 /* ========================================================================= */ 8485 8486 u32 read_physical_state(struct hfi1_devdata *dd) 8487 { 8488 u64 reg; 8489 8490 reg = read_csr(dd, DC_DC8051_STS_CUR_STATE); 8491 return (reg >> DC_DC8051_STS_CUR_STATE_PORT_SHIFT) 8492 & DC_DC8051_STS_CUR_STATE_PORT_MASK; 8493 } 8494 8495 u32 read_logical_state(struct hfi1_devdata *dd) 8496 { 8497 u64 reg; 8498 8499 reg = read_csr(dd, DCC_CFG_PORT_CONFIG); 8500 return (reg >> DCC_CFG_PORT_CONFIG_LINK_STATE_SHIFT) 8501 & DCC_CFG_PORT_CONFIG_LINK_STATE_MASK; 8502 } 8503 8504 static void set_logical_state(struct hfi1_devdata *dd, u32 chip_lstate) 8505 { 8506 u64 reg; 8507 8508 reg = read_csr(dd, DCC_CFG_PORT_CONFIG); 8509 /* clear current state, set new state */ 8510 reg &= ~DCC_CFG_PORT_CONFIG_LINK_STATE_SMASK; 8511 reg |= (u64)chip_lstate << DCC_CFG_PORT_CONFIG_LINK_STATE_SHIFT; 8512 write_csr(dd, DCC_CFG_PORT_CONFIG, reg); 8513 } 8514 8515 /* 8516 * Use the 8051 to read a LCB CSR. 8517 */ 8518 static int read_lcb_via_8051(struct hfi1_devdata *dd, u32 addr, u64 *data) 8519 { 8520 u32 regno; 8521 int ret; 8522 8523 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) { 8524 if (acquire_lcb_access(dd, 0) == 0) { 8525 *data = read_csr(dd, addr); 8526 release_lcb_access(dd, 0); 8527 return 0; 8528 } 8529 return -EBUSY; 8530 } 8531 8532 /* register is an index of LCB registers: (offset - base) / 8 */ 8533 regno = (addr - DC_LCB_CFG_RUN) >> 3; 8534 ret = do_8051_command(dd, HCMD_READ_LCB_CSR, regno, data); 8535 if (ret != HCMD_SUCCESS) 8536 return -EBUSY; 8537 return 0; 8538 } 8539 8540 /* 8541 * Provide a cache for some of the LCB registers in case the LCB is 8542 * unavailable. 8543 * (The LCB is unavailable in certain link states, for example.) 8544 */ 8545 struct lcb_datum { 8546 u32 off; 8547 u64 val; 8548 }; 8549 8550 static struct lcb_datum lcb_cache[] = { 8551 { DC_LCB_ERR_INFO_RX_REPLAY_CNT, 0}, 8552 { DC_LCB_ERR_INFO_SEQ_CRC_CNT, 0 }, 8553 { DC_LCB_ERR_INFO_REINIT_FROM_PEER_CNT, 0 }, 8554 }; 8555 8556 static void update_lcb_cache(struct hfi1_devdata *dd) 8557 { 8558 int i; 8559 int ret; 8560 u64 val; 8561 8562 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) { 8563 ret = read_lcb_csr(dd, lcb_cache[i].off, &val); 8564 8565 /* Update if we get good data */ 8566 if (likely(ret != -EBUSY)) 8567 lcb_cache[i].val = val; 8568 } 8569 } 8570 8571 static int read_lcb_cache(u32 off, u64 *val) 8572 { 8573 int i; 8574 8575 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) { 8576 if (lcb_cache[i].off == off) { 8577 *val = lcb_cache[i].val; 8578 return 0; 8579 } 8580 } 8581 8582 pr_warn("%s bad offset 0x%x\n", __func__, off); 8583 return -1; 8584 } 8585 8586 /* 8587 * Read an LCB CSR. Access may not be in host control, so check. 8588 * Return 0 on success, -EBUSY on failure. 8589 */ 8590 int read_lcb_csr(struct hfi1_devdata *dd, u32 addr, u64 *data) 8591 { 8592 struct hfi1_pportdata *ppd = dd->pport; 8593 8594 /* if up, go through the 8051 for the value */ 8595 if (ppd->host_link_state & HLS_UP) 8596 return read_lcb_via_8051(dd, addr, data); 8597 /* if going up or down, check the cache, otherwise, no access */ 8598 if (ppd->host_link_state & (HLS_GOING_UP | HLS_GOING_OFFLINE)) { 8599 if (read_lcb_cache(addr, data)) 8600 return -EBUSY; 8601 return 0; 8602 } 8603 8604 /* otherwise, host has access */ 8605 *data = read_csr(dd, addr); 8606 return 0; 8607 } 8608 8609 /* 8610 * Use the 8051 to write a LCB CSR. 8611 */ 8612 static int write_lcb_via_8051(struct hfi1_devdata *dd, u32 addr, u64 data) 8613 { 8614 u32 regno; 8615 int ret; 8616 8617 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR || 8618 (dd->dc8051_ver < dc8051_ver(0, 20, 0))) { 8619 if (acquire_lcb_access(dd, 0) == 0) { 8620 write_csr(dd, addr, data); 8621 release_lcb_access(dd, 0); 8622 return 0; 8623 } 8624 return -EBUSY; 8625 } 8626 8627 /* register is an index of LCB registers: (offset - base) / 8 */ 8628 regno = (addr - DC_LCB_CFG_RUN) >> 3; 8629 ret = do_8051_command(dd, HCMD_WRITE_LCB_CSR, regno, &data); 8630 if (ret != HCMD_SUCCESS) 8631 return -EBUSY; 8632 return 0; 8633 } 8634 8635 /* 8636 * Write an LCB CSR. Access may not be in host control, so check. 8637 * Return 0 on success, -EBUSY on failure. 8638 */ 8639 int write_lcb_csr(struct hfi1_devdata *dd, u32 addr, u64 data) 8640 { 8641 struct hfi1_pportdata *ppd = dd->pport; 8642 8643 /* if up, go through the 8051 for the value */ 8644 if (ppd->host_link_state & HLS_UP) 8645 return write_lcb_via_8051(dd, addr, data); 8646 /* if going up or down, no access */ 8647 if (ppd->host_link_state & (HLS_GOING_UP | HLS_GOING_OFFLINE)) 8648 return -EBUSY; 8649 /* otherwise, host has access */ 8650 write_csr(dd, addr, data); 8651 return 0; 8652 } 8653 8654 /* 8655 * Returns: 8656 * < 0 = Linux error, not able to get access 8657 * > 0 = 8051 command RETURN_CODE 8658 */ 8659 static int do_8051_command(struct hfi1_devdata *dd, u32 type, u64 in_data, 8660 u64 *out_data) 8661 { 8662 u64 reg, completed; 8663 int return_code; 8664 unsigned long timeout; 8665 8666 hfi1_cdbg(DC8051, "type %d, data 0x%012llx", type, in_data); 8667 8668 mutex_lock(&dd->dc8051_lock); 8669 8670 /* We can't send any commands to the 8051 if it's in reset */ 8671 if (dd->dc_shutdown) { 8672 return_code = -ENODEV; 8673 goto fail; 8674 } 8675 8676 /* 8677 * If an 8051 host command timed out previously, then the 8051 is 8678 * stuck. 8679 * 8680 * On first timeout, attempt to reset and restart the entire DC 8681 * block (including 8051). (Is this too big of a hammer?) 8682 * 8683 * If the 8051 times out a second time, the reset did not bring it 8684 * back to healthy life. In that case, fail any subsequent commands. 8685 */ 8686 if (dd->dc8051_timed_out) { 8687 if (dd->dc8051_timed_out > 1) { 8688 dd_dev_err(dd, 8689 "Previous 8051 host command timed out, skipping command %u\n", 8690 type); 8691 return_code = -ENXIO; 8692 goto fail; 8693 } 8694 _dc_shutdown(dd); 8695 _dc_start(dd); 8696 } 8697 8698 /* 8699 * If there is no timeout, then the 8051 command interface is 8700 * waiting for a command. 8701 */ 8702 8703 /* 8704 * When writing a LCB CSR, out_data contains the full value to 8705 * to be written, while in_data contains the relative LCB 8706 * address in 7:0. Do the work here, rather than the caller, 8707 * of distrubting the write data to where it needs to go: 8708 * 8709 * Write data 8710 * 39:00 -> in_data[47:8] 8711 * 47:40 -> DC8051_CFG_EXT_DEV_0.RETURN_CODE 8712 * 63:48 -> DC8051_CFG_EXT_DEV_0.RSP_DATA 8713 */ 8714 if (type == HCMD_WRITE_LCB_CSR) { 8715 in_data |= ((*out_data) & 0xffffffffffull) << 8; 8716 /* must preserve COMPLETED - it is tied to hardware */ 8717 reg = read_csr(dd, DC_DC8051_CFG_EXT_DEV_0); 8718 reg &= DC_DC8051_CFG_EXT_DEV_0_COMPLETED_SMASK; 8719 reg |= ((((*out_data) >> 40) & 0xff) << 8720 DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT) 8721 | ((((*out_data) >> 48) & 0xffff) << 8722 DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT); 8723 write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, reg); 8724 } 8725 8726 /* 8727 * Do two writes: the first to stabilize the type and req_data, the 8728 * second to activate. 8729 */ 8730 reg = ((u64)type & DC_DC8051_CFG_HOST_CMD_0_REQ_TYPE_MASK) 8731 << DC_DC8051_CFG_HOST_CMD_0_REQ_TYPE_SHIFT 8732 | (in_data & DC_DC8051_CFG_HOST_CMD_0_REQ_DATA_MASK) 8733 << DC_DC8051_CFG_HOST_CMD_0_REQ_DATA_SHIFT; 8734 write_csr(dd, DC_DC8051_CFG_HOST_CMD_0, reg); 8735 reg |= DC_DC8051_CFG_HOST_CMD_0_REQ_NEW_SMASK; 8736 write_csr(dd, DC_DC8051_CFG_HOST_CMD_0, reg); 8737 8738 /* wait for completion, alternate: interrupt */ 8739 timeout = jiffies + msecs_to_jiffies(DC8051_COMMAND_TIMEOUT); 8740 while (1) { 8741 reg = read_csr(dd, DC_DC8051_CFG_HOST_CMD_1); 8742 completed = reg & DC_DC8051_CFG_HOST_CMD_1_COMPLETED_SMASK; 8743 if (completed) 8744 break; 8745 if (time_after(jiffies, timeout)) { 8746 dd->dc8051_timed_out++; 8747 dd_dev_err(dd, "8051 host command %u timeout\n", type); 8748 if (out_data) 8749 *out_data = 0; 8750 return_code = -ETIMEDOUT; 8751 goto fail; 8752 } 8753 udelay(2); 8754 } 8755 8756 if (out_data) { 8757 *out_data = (reg >> DC_DC8051_CFG_HOST_CMD_1_RSP_DATA_SHIFT) 8758 & DC_DC8051_CFG_HOST_CMD_1_RSP_DATA_MASK; 8759 if (type == HCMD_READ_LCB_CSR) { 8760 /* top 16 bits are in a different register */ 8761 *out_data |= (read_csr(dd, DC_DC8051_CFG_EXT_DEV_1) 8762 & DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_SMASK) 8763 << (48 8764 - DC_DC8051_CFG_EXT_DEV_1_REQ_DATA_SHIFT); 8765 } 8766 } 8767 return_code = (reg >> DC_DC8051_CFG_HOST_CMD_1_RETURN_CODE_SHIFT) 8768 & DC_DC8051_CFG_HOST_CMD_1_RETURN_CODE_MASK; 8769 dd->dc8051_timed_out = 0; 8770 /* 8771 * Clear command for next user. 8772 */ 8773 write_csr(dd, DC_DC8051_CFG_HOST_CMD_0, 0); 8774 8775 fail: 8776 mutex_unlock(&dd->dc8051_lock); 8777 return return_code; 8778 } 8779 8780 static int set_physical_link_state(struct hfi1_devdata *dd, u64 state) 8781 { 8782 return do_8051_command(dd, HCMD_CHANGE_PHY_STATE, state, NULL); 8783 } 8784 8785 int load_8051_config(struct hfi1_devdata *dd, u8 field_id, 8786 u8 lane_id, u32 config_data) 8787 { 8788 u64 data; 8789 int ret; 8790 8791 data = (u64)field_id << LOAD_DATA_FIELD_ID_SHIFT 8792 | (u64)lane_id << LOAD_DATA_LANE_ID_SHIFT 8793 | (u64)config_data << LOAD_DATA_DATA_SHIFT; 8794 ret = do_8051_command(dd, HCMD_LOAD_CONFIG_DATA, data, NULL); 8795 if (ret != HCMD_SUCCESS) { 8796 dd_dev_err(dd, 8797 "load 8051 config: field id %d, lane %d, err %d\n", 8798 (int)field_id, (int)lane_id, ret); 8799 } 8800 return ret; 8801 } 8802 8803 /* 8804 * Read the 8051 firmware "registers". Use the RAM directly. Always 8805 * set the result, even on error. 8806 * Return 0 on success, -errno on failure 8807 */ 8808 int read_8051_config(struct hfi1_devdata *dd, u8 field_id, u8 lane_id, 8809 u32 *result) 8810 { 8811 u64 big_data; 8812 u32 addr; 8813 int ret; 8814 8815 /* address start depends on the lane_id */ 8816 if (lane_id < 4) 8817 addr = (4 * NUM_GENERAL_FIELDS) 8818 + (lane_id * 4 * NUM_LANE_FIELDS); 8819 else 8820 addr = 0; 8821 addr += field_id * 4; 8822 8823 /* read is in 8-byte chunks, hardware will truncate the address down */ 8824 ret = read_8051_data(dd, addr, 8, &big_data); 8825 8826 if (ret == 0) { 8827 /* extract the 4 bytes we want */ 8828 if (addr & 0x4) 8829 *result = (u32)(big_data >> 32); 8830 else 8831 *result = (u32)big_data; 8832 } else { 8833 *result = 0; 8834 dd_dev_err(dd, "%s: direct read failed, lane %d, field %d!\n", 8835 __func__, lane_id, field_id); 8836 } 8837 8838 return ret; 8839 } 8840 8841 static int write_vc_local_phy(struct hfi1_devdata *dd, u8 power_management, 8842 u8 continuous) 8843 { 8844 u32 frame; 8845 8846 frame = continuous << CONTINIOUS_REMOTE_UPDATE_SUPPORT_SHIFT 8847 | power_management << POWER_MANAGEMENT_SHIFT; 8848 return load_8051_config(dd, VERIFY_CAP_LOCAL_PHY, 8849 GENERAL_CONFIG, frame); 8850 } 8851 8852 static int write_vc_local_fabric(struct hfi1_devdata *dd, u8 vau, u8 z, u8 vcu, 8853 u16 vl15buf, u8 crc_sizes) 8854 { 8855 u32 frame; 8856 8857 frame = (u32)vau << VAU_SHIFT 8858 | (u32)z << Z_SHIFT 8859 | (u32)vcu << VCU_SHIFT 8860 | (u32)vl15buf << VL15BUF_SHIFT 8861 | (u32)crc_sizes << CRC_SIZES_SHIFT; 8862 return load_8051_config(dd, VERIFY_CAP_LOCAL_FABRIC, 8863 GENERAL_CONFIG, frame); 8864 } 8865 8866 static void read_vc_local_link_mode(struct hfi1_devdata *dd, u8 *misc_bits, 8867 u8 *flag_bits, u16 *link_widths) 8868 { 8869 u32 frame; 8870 8871 read_8051_config(dd, VERIFY_CAP_LOCAL_LINK_MODE, GENERAL_CONFIG, 8872 &frame); 8873 *misc_bits = (frame >> MISC_CONFIG_BITS_SHIFT) & MISC_CONFIG_BITS_MASK; 8874 *flag_bits = (frame >> LOCAL_FLAG_BITS_SHIFT) & LOCAL_FLAG_BITS_MASK; 8875 *link_widths = (frame >> LINK_WIDTH_SHIFT) & LINK_WIDTH_MASK; 8876 } 8877 8878 static int write_vc_local_link_mode(struct hfi1_devdata *dd, 8879 u8 misc_bits, 8880 u8 flag_bits, 8881 u16 link_widths) 8882 { 8883 u32 frame; 8884 8885 frame = (u32)misc_bits << MISC_CONFIG_BITS_SHIFT 8886 | (u32)flag_bits << LOCAL_FLAG_BITS_SHIFT 8887 | (u32)link_widths << LINK_WIDTH_SHIFT; 8888 return load_8051_config(dd, VERIFY_CAP_LOCAL_LINK_MODE, GENERAL_CONFIG, 8889 frame); 8890 } 8891 8892 static int write_local_device_id(struct hfi1_devdata *dd, u16 device_id, 8893 u8 device_rev) 8894 { 8895 u32 frame; 8896 8897 frame = ((u32)device_id << LOCAL_DEVICE_ID_SHIFT) 8898 | ((u32)device_rev << LOCAL_DEVICE_REV_SHIFT); 8899 return load_8051_config(dd, LOCAL_DEVICE_ID, GENERAL_CONFIG, frame); 8900 } 8901 8902 static void read_remote_device_id(struct hfi1_devdata *dd, u16 *device_id, 8903 u8 *device_rev) 8904 { 8905 u32 frame; 8906 8907 read_8051_config(dd, REMOTE_DEVICE_ID, GENERAL_CONFIG, &frame); 8908 *device_id = (frame >> REMOTE_DEVICE_ID_SHIFT) & REMOTE_DEVICE_ID_MASK; 8909 *device_rev = (frame >> REMOTE_DEVICE_REV_SHIFT) 8910 & REMOTE_DEVICE_REV_MASK; 8911 } 8912 8913 int write_host_interface_version(struct hfi1_devdata *dd, u8 version) 8914 { 8915 u32 frame; 8916 u32 mask; 8917 8918 mask = (HOST_INTERFACE_VERSION_MASK << HOST_INTERFACE_VERSION_SHIFT); 8919 read_8051_config(dd, RESERVED_REGISTERS, GENERAL_CONFIG, &frame); 8920 /* Clear, then set field */ 8921 frame &= ~mask; 8922 frame |= ((u32)version << HOST_INTERFACE_VERSION_SHIFT); 8923 return load_8051_config(dd, RESERVED_REGISTERS, GENERAL_CONFIG, 8924 frame); 8925 } 8926 8927 void read_misc_status(struct hfi1_devdata *dd, u8 *ver_major, u8 *ver_minor, 8928 u8 *ver_patch) 8929 { 8930 u32 frame; 8931 8932 read_8051_config(dd, MISC_STATUS, GENERAL_CONFIG, &frame); 8933 *ver_major = (frame >> STS_FM_VERSION_MAJOR_SHIFT) & 8934 STS_FM_VERSION_MAJOR_MASK; 8935 *ver_minor = (frame >> STS_FM_VERSION_MINOR_SHIFT) & 8936 STS_FM_VERSION_MINOR_MASK; 8937 8938 read_8051_config(dd, VERSION_PATCH, GENERAL_CONFIG, &frame); 8939 *ver_patch = (frame >> STS_FM_VERSION_PATCH_SHIFT) & 8940 STS_FM_VERSION_PATCH_MASK; 8941 } 8942 8943 static void read_vc_remote_phy(struct hfi1_devdata *dd, u8 *power_management, 8944 u8 *continuous) 8945 { 8946 u32 frame; 8947 8948 read_8051_config(dd, VERIFY_CAP_REMOTE_PHY, GENERAL_CONFIG, &frame); 8949 *power_management = (frame >> POWER_MANAGEMENT_SHIFT) 8950 & POWER_MANAGEMENT_MASK; 8951 *continuous = (frame >> CONTINIOUS_REMOTE_UPDATE_SUPPORT_SHIFT) 8952 & CONTINIOUS_REMOTE_UPDATE_SUPPORT_MASK; 8953 } 8954 8955 static void read_vc_remote_fabric(struct hfi1_devdata *dd, u8 *vau, u8 *z, 8956 u8 *vcu, u16 *vl15buf, u8 *crc_sizes) 8957 { 8958 u32 frame; 8959 8960 read_8051_config(dd, VERIFY_CAP_REMOTE_FABRIC, GENERAL_CONFIG, &frame); 8961 *vau = (frame >> VAU_SHIFT) & VAU_MASK; 8962 *z = (frame >> Z_SHIFT) & Z_MASK; 8963 *vcu = (frame >> VCU_SHIFT) & VCU_MASK; 8964 *vl15buf = (frame >> VL15BUF_SHIFT) & VL15BUF_MASK; 8965 *crc_sizes = (frame >> CRC_SIZES_SHIFT) & CRC_SIZES_MASK; 8966 } 8967 8968 static void read_vc_remote_link_width(struct hfi1_devdata *dd, 8969 u8 *remote_tx_rate, 8970 u16 *link_widths) 8971 { 8972 u32 frame; 8973 8974 read_8051_config(dd, VERIFY_CAP_REMOTE_LINK_WIDTH, GENERAL_CONFIG, 8975 &frame); 8976 *remote_tx_rate = (frame >> REMOTE_TX_RATE_SHIFT) 8977 & REMOTE_TX_RATE_MASK; 8978 *link_widths = (frame >> LINK_WIDTH_SHIFT) & LINK_WIDTH_MASK; 8979 } 8980 8981 static void read_local_lni(struct hfi1_devdata *dd, u8 *enable_lane_rx) 8982 { 8983 u32 frame; 8984 8985 read_8051_config(dd, LOCAL_LNI_INFO, GENERAL_CONFIG, &frame); 8986 *enable_lane_rx = (frame >> ENABLE_LANE_RX_SHIFT) & ENABLE_LANE_RX_MASK; 8987 } 8988 8989 static void read_last_local_state(struct hfi1_devdata *dd, u32 *lls) 8990 { 8991 read_8051_config(dd, LAST_LOCAL_STATE_COMPLETE, GENERAL_CONFIG, lls); 8992 } 8993 8994 static void read_last_remote_state(struct hfi1_devdata *dd, u32 *lrs) 8995 { 8996 read_8051_config(dd, LAST_REMOTE_STATE_COMPLETE, GENERAL_CONFIG, lrs); 8997 } 8998 8999 void hfi1_read_link_quality(struct hfi1_devdata *dd, u8 *link_quality) 9000 { 9001 u32 frame; 9002 int ret; 9003 9004 *link_quality = 0; 9005 if (dd->pport->host_link_state & HLS_UP) { 9006 ret = read_8051_config(dd, LINK_QUALITY_INFO, GENERAL_CONFIG, 9007 &frame); 9008 if (ret == 0) 9009 *link_quality = (frame >> LINK_QUALITY_SHIFT) 9010 & LINK_QUALITY_MASK; 9011 } 9012 } 9013 9014 static void read_planned_down_reason_code(struct hfi1_devdata *dd, u8 *pdrrc) 9015 { 9016 u32 frame; 9017 9018 read_8051_config(dd, LINK_QUALITY_INFO, GENERAL_CONFIG, &frame); 9019 *pdrrc = (frame >> DOWN_REMOTE_REASON_SHIFT) & DOWN_REMOTE_REASON_MASK; 9020 } 9021 9022 static void read_link_down_reason(struct hfi1_devdata *dd, u8 *ldr) 9023 { 9024 u32 frame; 9025 9026 read_8051_config(dd, LINK_DOWN_REASON, GENERAL_CONFIG, &frame); 9027 *ldr = (frame & 0xff); 9028 } 9029 9030 static int read_tx_settings(struct hfi1_devdata *dd, 9031 u8 *enable_lane_tx, 9032 u8 *tx_polarity_inversion, 9033 u8 *rx_polarity_inversion, 9034 u8 *max_rate) 9035 { 9036 u32 frame; 9037 int ret; 9038 9039 ret = read_8051_config(dd, TX_SETTINGS, GENERAL_CONFIG, &frame); 9040 *enable_lane_tx = (frame >> ENABLE_LANE_TX_SHIFT) 9041 & ENABLE_LANE_TX_MASK; 9042 *tx_polarity_inversion = (frame >> TX_POLARITY_INVERSION_SHIFT) 9043 & TX_POLARITY_INVERSION_MASK; 9044 *rx_polarity_inversion = (frame >> RX_POLARITY_INVERSION_SHIFT) 9045 & RX_POLARITY_INVERSION_MASK; 9046 *max_rate = (frame >> MAX_RATE_SHIFT) & MAX_RATE_MASK; 9047 return ret; 9048 } 9049 9050 static int write_tx_settings(struct hfi1_devdata *dd, 9051 u8 enable_lane_tx, 9052 u8 tx_polarity_inversion, 9053 u8 rx_polarity_inversion, 9054 u8 max_rate) 9055 { 9056 u32 frame; 9057 9058 /* no need to mask, all variable sizes match field widths */ 9059 frame = enable_lane_tx << ENABLE_LANE_TX_SHIFT 9060 | tx_polarity_inversion << TX_POLARITY_INVERSION_SHIFT 9061 | rx_polarity_inversion << RX_POLARITY_INVERSION_SHIFT 9062 | max_rate << MAX_RATE_SHIFT; 9063 return load_8051_config(dd, TX_SETTINGS, GENERAL_CONFIG, frame); 9064 } 9065 9066 /* 9067 * Read an idle LCB message. 9068 * 9069 * Returns 0 on success, -EINVAL on error 9070 */ 9071 static int read_idle_message(struct hfi1_devdata *dd, u64 type, u64 *data_out) 9072 { 9073 int ret; 9074 9075 ret = do_8051_command(dd, HCMD_READ_LCB_IDLE_MSG, type, data_out); 9076 if (ret != HCMD_SUCCESS) { 9077 dd_dev_err(dd, "read idle message: type %d, err %d\n", 9078 (u32)type, ret); 9079 return -EINVAL; 9080 } 9081 dd_dev_info(dd, "%s: read idle message 0x%llx\n", __func__, *data_out); 9082 /* return only the payload as we already know the type */ 9083 *data_out >>= IDLE_PAYLOAD_SHIFT; 9084 return 0; 9085 } 9086 9087 /* 9088 * Read an idle SMA message. To be done in response to a notification from 9089 * the 8051. 9090 * 9091 * Returns 0 on success, -EINVAL on error 9092 */ 9093 static int read_idle_sma(struct hfi1_devdata *dd, u64 *data) 9094 { 9095 return read_idle_message(dd, (u64)IDLE_SMA << IDLE_MSG_TYPE_SHIFT, 9096 data); 9097 } 9098 9099 /* 9100 * Send an idle LCB message. 9101 * 9102 * Returns 0 on success, -EINVAL on error 9103 */ 9104 static int send_idle_message(struct hfi1_devdata *dd, u64 data) 9105 { 9106 int ret; 9107 9108 dd_dev_info(dd, "%s: sending idle message 0x%llx\n", __func__, data); 9109 ret = do_8051_command(dd, HCMD_SEND_LCB_IDLE_MSG, data, NULL); 9110 if (ret != HCMD_SUCCESS) { 9111 dd_dev_err(dd, "send idle message: data 0x%llx, err %d\n", 9112 data, ret); 9113 return -EINVAL; 9114 } 9115 return 0; 9116 } 9117 9118 /* 9119 * Send an idle SMA message. 9120 * 9121 * Returns 0 on success, -EINVAL on error 9122 */ 9123 int send_idle_sma(struct hfi1_devdata *dd, u64 message) 9124 { 9125 u64 data; 9126 9127 data = ((message & IDLE_PAYLOAD_MASK) << IDLE_PAYLOAD_SHIFT) | 9128 ((u64)IDLE_SMA << IDLE_MSG_TYPE_SHIFT); 9129 return send_idle_message(dd, data); 9130 } 9131 9132 /* 9133 * Initialize the LCB then do a quick link up. This may or may not be 9134 * in loopback. 9135 * 9136 * return 0 on success, -errno on error 9137 */ 9138 static int do_quick_linkup(struct hfi1_devdata *dd) 9139 { 9140 int ret; 9141 9142 lcb_shutdown(dd, 0); 9143 9144 if (loopback) { 9145 /* LCB_CFG_LOOPBACK.VAL = 2 */ 9146 /* LCB_CFG_LANE_WIDTH.VAL = 0 */ 9147 write_csr(dd, DC_LCB_CFG_LOOPBACK, 9148 IB_PACKET_TYPE << DC_LCB_CFG_LOOPBACK_VAL_SHIFT); 9149 write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0); 9150 } 9151 9152 /* start the LCBs */ 9153 /* LCB_CFG_TX_FIFOS_RESET.VAL = 0 */ 9154 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0); 9155 9156 /* simulator only loopback steps */ 9157 if (loopback && dd->icode == ICODE_FUNCTIONAL_SIMULATOR) { 9158 /* LCB_CFG_RUN.EN = 1 */ 9159 write_csr(dd, DC_LCB_CFG_RUN, 9160 1ull << DC_LCB_CFG_RUN_EN_SHIFT); 9161 9162 ret = wait_link_transfer_active(dd, 10); 9163 if (ret) 9164 return ret; 9165 9166 write_csr(dd, DC_LCB_CFG_ALLOW_LINK_UP, 9167 1ull << DC_LCB_CFG_ALLOW_LINK_UP_VAL_SHIFT); 9168 } 9169 9170 if (!loopback) { 9171 /* 9172 * When doing quick linkup and not in loopback, both 9173 * sides must be done with LCB set-up before either 9174 * starts the quick linkup. Put a delay here so that 9175 * both sides can be started and have a chance to be 9176 * done with LCB set up before resuming. 9177 */ 9178 dd_dev_err(dd, 9179 "Pausing for peer to be finished with LCB set up\n"); 9180 msleep(5000); 9181 dd_dev_err(dd, "Continuing with quick linkup\n"); 9182 } 9183 9184 write_csr(dd, DC_LCB_ERR_EN, 0); /* mask LCB errors */ 9185 set_8051_lcb_access(dd); 9186 9187 /* 9188 * State "quick" LinkUp request sets the physical link state to 9189 * LinkUp without a verify capability sequence. 9190 * This state is in simulator v37 and later. 9191 */ 9192 ret = set_physical_link_state(dd, PLS_QUICK_LINKUP); 9193 if (ret != HCMD_SUCCESS) { 9194 dd_dev_err(dd, 9195 "%s: set physical link state to quick LinkUp failed with return %d\n", 9196 __func__, ret); 9197 9198 set_host_lcb_access(dd); 9199 write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */ 9200 9201 if (ret >= 0) 9202 ret = -EINVAL; 9203 return ret; 9204 } 9205 9206 return 0; /* success */ 9207 } 9208 9209 /* 9210 * Do all special steps to set up loopback. 9211 */ 9212 static int init_loopback(struct hfi1_devdata *dd) 9213 { 9214 dd_dev_info(dd, "Entering loopback mode\n"); 9215 9216 /* all loopbacks should disable self GUID check */ 9217 write_csr(dd, DC_DC8051_CFG_MODE, 9218 (read_csr(dd, DC_DC8051_CFG_MODE) | DISABLE_SELF_GUID_CHECK)); 9219 9220 /* 9221 * The simulator has only one loopback option - LCB. Switch 9222 * to that option, which includes quick link up. 9223 * 9224 * Accept all valid loopback values. 9225 */ 9226 if ((dd->icode == ICODE_FUNCTIONAL_SIMULATOR) && 9227 (loopback == LOOPBACK_SERDES || loopback == LOOPBACK_LCB || 9228 loopback == LOOPBACK_CABLE)) { 9229 loopback = LOOPBACK_LCB; 9230 quick_linkup = 1; 9231 return 0; 9232 } 9233 9234 /* 9235 * SerDes loopback init sequence is handled in set_local_link_attributes 9236 */ 9237 if (loopback == LOOPBACK_SERDES) 9238 return 0; 9239 9240 /* LCB loopback - handled at poll time */ 9241 if (loopback == LOOPBACK_LCB) { 9242 quick_linkup = 1; /* LCB is always quick linkup */ 9243 9244 /* not supported in emulation due to emulation RTL changes */ 9245 if (dd->icode == ICODE_FPGA_EMULATION) { 9246 dd_dev_err(dd, 9247 "LCB loopback not supported in emulation\n"); 9248 return -EINVAL; 9249 } 9250 return 0; 9251 } 9252 9253 /* external cable loopback requires no extra steps */ 9254 if (loopback == LOOPBACK_CABLE) 9255 return 0; 9256 9257 dd_dev_err(dd, "Invalid loopback mode %d\n", loopback); 9258 return -EINVAL; 9259 } 9260 9261 /* 9262 * Translate from the OPA_LINK_WIDTH handed to us by the FM to bits 9263 * used in the Verify Capability link width attribute. 9264 */ 9265 static u16 opa_to_vc_link_widths(u16 opa_widths) 9266 { 9267 int i; 9268 u16 result = 0; 9269 9270 static const struct link_bits { 9271 u16 from; 9272 u16 to; 9273 } opa_link_xlate[] = { 9274 { OPA_LINK_WIDTH_1X, 1 << (1 - 1) }, 9275 { OPA_LINK_WIDTH_2X, 1 << (2 - 1) }, 9276 { OPA_LINK_WIDTH_3X, 1 << (3 - 1) }, 9277 { OPA_LINK_WIDTH_4X, 1 << (4 - 1) }, 9278 }; 9279 9280 for (i = 0; i < ARRAY_SIZE(opa_link_xlate); i++) { 9281 if (opa_widths & opa_link_xlate[i].from) 9282 result |= opa_link_xlate[i].to; 9283 } 9284 return result; 9285 } 9286 9287 /* 9288 * Set link attributes before moving to polling. 9289 */ 9290 static int set_local_link_attributes(struct hfi1_pportdata *ppd) 9291 { 9292 struct hfi1_devdata *dd = ppd->dd; 9293 u8 enable_lane_tx; 9294 u8 tx_polarity_inversion; 9295 u8 rx_polarity_inversion; 9296 int ret; 9297 u32 misc_bits = 0; 9298 /* reset our fabric serdes to clear any lingering problems */ 9299 fabric_serdes_reset(dd); 9300 9301 /* set the local tx rate - need to read-modify-write */ 9302 ret = read_tx_settings(dd, &enable_lane_tx, &tx_polarity_inversion, 9303 &rx_polarity_inversion, &ppd->local_tx_rate); 9304 if (ret) 9305 goto set_local_link_attributes_fail; 9306 9307 if (dd->dc8051_ver < dc8051_ver(0, 20, 0)) { 9308 /* set the tx rate to the fastest enabled */ 9309 if (ppd->link_speed_enabled & OPA_LINK_SPEED_25G) 9310 ppd->local_tx_rate = 1; 9311 else 9312 ppd->local_tx_rate = 0; 9313 } else { 9314 /* set the tx rate to all enabled */ 9315 ppd->local_tx_rate = 0; 9316 if (ppd->link_speed_enabled & OPA_LINK_SPEED_25G) 9317 ppd->local_tx_rate |= 2; 9318 if (ppd->link_speed_enabled & OPA_LINK_SPEED_12_5G) 9319 ppd->local_tx_rate |= 1; 9320 } 9321 9322 enable_lane_tx = 0xF; /* enable all four lanes */ 9323 ret = write_tx_settings(dd, enable_lane_tx, tx_polarity_inversion, 9324 rx_polarity_inversion, ppd->local_tx_rate); 9325 if (ret != HCMD_SUCCESS) 9326 goto set_local_link_attributes_fail; 9327 9328 ret = write_host_interface_version(dd, HOST_INTERFACE_VERSION); 9329 if (ret != HCMD_SUCCESS) { 9330 dd_dev_err(dd, 9331 "Failed to set host interface version, return 0x%x\n", 9332 ret); 9333 goto set_local_link_attributes_fail; 9334 } 9335 9336 /* 9337 * DC supports continuous updates. 9338 */ 9339 ret = write_vc_local_phy(dd, 9340 0 /* no power management */, 9341 1 /* continuous updates */); 9342 if (ret != HCMD_SUCCESS) 9343 goto set_local_link_attributes_fail; 9344 9345 /* z=1 in the next call: AU of 0 is not supported by the hardware */ 9346 ret = write_vc_local_fabric(dd, dd->vau, 1, dd->vcu, dd->vl15_init, 9347 ppd->port_crc_mode_enabled); 9348 if (ret != HCMD_SUCCESS) 9349 goto set_local_link_attributes_fail; 9350 9351 /* 9352 * SerDes loopback init sequence requires 9353 * setting bit 0 of MISC_CONFIG_BITS 9354 */ 9355 if (loopback == LOOPBACK_SERDES) 9356 misc_bits |= 1 << LOOPBACK_SERDES_CONFIG_BIT_MASK_SHIFT; 9357 9358 /* 9359 * An external device configuration request is used to reset the LCB 9360 * to retry to obtain operational lanes when the first attempt is 9361 * unsuccesful. 9362 */ 9363 if (dd->dc8051_ver >= dc8051_ver(1, 25, 0)) 9364 misc_bits |= 1 << EXT_CFG_LCB_RESET_SUPPORTED_SHIFT; 9365 9366 ret = write_vc_local_link_mode(dd, misc_bits, 0, 9367 opa_to_vc_link_widths( 9368 ppd->link_width_enabled)); 9369 if (ret != HCMD_SUCCESS) 9370 goto set_local_link_attributes_fail; 9371 9372 /* let peer know who we are */ 9373 ret = write_local_device_id(dd, dd->pcidev->device, dd->minrev); 9374 if (ret == HCMD_SUCCESS) 9375 return 0; 9376 9377 set_local_link_attributes_fail: 9378 dd_dev_err(dd, 9379 "Failed to set local link attributes, return 0x%x\n", 9380 ret); 9381 return ret; 9382 } 9383 9384 /* 9385 * Call this to start the link. 9386 * Do not do anything if the link is disabled. 9387 * Returns 0 if link is disabled, moved to polling, or the driver is not ready. 9388 */ 9389 int start_link(struct hfi1_pportdata *ppd) 9390 { 9391 /* 9392 * Tune the SerDes to a ballpark setting for optimal signal and bit 9393 * error rate. Needs to be done before starting the link. 9394 */ 9395 tune_serdes(ppd); 9396 9397 if (!ppd->driver_link_ready) { 9398 dd_dev_info(ppd->dd, 9399 "%s: stopping link start because driver is not ready\n", 9400 __func__); 9401 return 0; 9402 } 9403 9404 /* 9405 * FULL_MGMT_P_KEY is cleared from the pkey table, so that the 9406 * pkey table can be configured properly if the HFI unit is connected 9407 * to switch port with MgmtAllowed=NO 9408 */ 9409 clear_full_mgmt_pkey(ppd); 9410 9411 return set_link_state(ppd, HLS_DN_POLL); 9412 } 9413 9414 static void wait_for_qsfp_init(struct hfi1_pportdata *ppd) 9415 { 9416 struct hfi1_devdata *dd = ppd->dd; 9417 u64 mask; 9418 unsigned long timeout; 9419 9420 /* 9421 * Some QSFP cables have a quirk that asserts the IntN line as a side 9422 * effect of power up on plug-in. We ignore this false positive 9423 * interrupt until the module has finished powering up by waiting for 9424 * a minimum timeout of the module inrush initialization time of 9425 * 500 ms (SFF 8679 Table 5-6) to ensure the voltage rails in the 9426 * module have stabilized. 9427 */ 9428 msleep(500); 9429 9430 /* 9431 * Check for QSFP interrupt for t_init (SFF 8679 Table 8-1) 9432 */ 9433 timeout = jiffies + msecs_to_jiffies(2000); 9434 while (1) { 9435 mask = read_csr(dd, dd->hfi1_id ? 9436 ASIC_QSFP2_IN : ASIC_QSFP1_IN); 9437 if (!(mask & QSFP_HFI0_INT_N)) 9438 break; 9439 if (time_after(jiffies, timeout)) { 9440 dd_dev_info(dd, "%s: No IntN detected, reset complete\n", 9441 __func__); 9442 break; 9443 } 9444 udelay(2); 9445 } 9446 } 9447 9448 static void set_qsfp_int_n(struct hfi1_pportdata *ppd, u8 enable) 9449 { 9450 struct hfi1_devdata *dd = ppd->dd; 9451 u64 mask; 9452 9453 mask = read_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK); 9454 if (enable) { 9455 /* 9456 * Clear the status register to avoid an immediate interrupt 9457 * when we re-enable the IntN pin 9458 */ 9459 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_CLEAR : ASIC_QSFP1_CLEAR, 9460 QSFP_HFI0_INT_N); 9461 mask |= (u64)QSFP_HFI0_INT_N; 9462 } else { 9463 mask &= ~(u64)QSFP_HFI0_INT_N; 9464 } 9465 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK, mask); 9466 } 9467 9468 int reset_qsfp(struct hfi1_pportdata *ppd) 9469 { 9470 struct hfi1_devdata *dd = ppd->dd; 9471 u64 mask, qsfp_mask; 9472 9473 /* Disable INT_N from triggering QSFP interrupts */ 9474 set_qsfp_int_n(ppd, 0); 9475 9476 /* Reset the QSFP */ 9477 mask = (u64)QSFP_HFI0_RESET_N; 9478 9479 qsfp_mask = read_csr(dd, 9480 dd->hfi1_id ? ASIC_QSFP2_OUT : ASIC_QSFP1_OUT); 9481 qsfp_mask &= ~mask; 9482 write_csr(dd, 9483 dd->hfi1_id ? ASIC_QSFP2_OUT : ASIC_QSFP1_OUT, qsfp_mask); 9484 9485 udelay(10); 9486 9487 qsfp_mask |= mask; 9488 write_csr(dd, 9489 dd->hfi1_id ? ASIC_QSFP2_OUT : ASIC_QSFP1_OUT, qsfp_mask); 9490 9491 wait_for_qsfp_init(ppd); 9492 9493 /* 9494 * Allow INT_N to trigger the QSFP interrupt to watch 9495 * for alarms and warnings 9496 */ 9497 set_qsfp_int_n(ppd, 1); 9498 9499 /* 9500 * After the reset, AOC transmitters are enabled by default. They need 9501 * to be turned off to complete the QSFP setup before they can be 9502 * enabled again. 9503 */ 9504 return set_qsfp_tx(ppd, 0); 9505 } 9506 9507 static int handle_qsfp_error_conditions(struct hfi1_pportdata *ppd, 9508 u8 *qsfp_interrupt_status) 9509 { 9510 struct hfi1_devdata *dd = ppd->dd; 9511 9512 if ((qsfp_interrupt_status[0] & QSFP_HIGH_TEMP_ALARM) || 9513 (qsfp_interrupt_status[0] & QSFP_HIGH_TEMP_WARNING)) 9514 dd_dev_err(dd, "%s: QSFP cable temperature too high\n", 9515 __func__); 9516 9517 if ((qsfp_interrupt_status[0] & QSFP_LOW_TEMP_ALARM) || 9518 (qsfp_interrupt_status[0] & QSFP_LOW_TEMP_WARNING)) 9519 dd_dev_err(dd, "%s: QSFP cable temperature too low\n", 9520 __func__); 9521 9522 /* 9523 * The remaining alarms/warnings don't matter if the link is down. 9524 */ 9525 if (ppd->host_link_state & HLS_DOWN) 9526 return 0; 9527 9528 if ((qsfp_interrupt_status[1] & QSFP_HIGH_VCC_ALARM) || 9529 (qsfp_interrupt_status[1] & QSFP_HIGH_VCC_WARNING)) 9530 dd_dev_err(dd, "%s: QSFP supply voltage too high\n", 9531 __func__); 9532 9533 if ((qsfp_interrupt_status[1] & QSFP_LOW_VCC_ALARM) || 9534 (qsfp_interrupt_status[1] & QSFP_LOW_VCC_WARNING)) 9535 dd_dev_err(dd, "%s: QSFP supply voltage too low\n", 9536 __func__); 9537 9538 /* Byte 2 is vendor specific */ 9539 9540 if ((qsfp_interrupt_status[3] & QSFP_HIGH_POWER_ALARM) || 9541 (qsfp_interrupt_status[3] & QSFP_HIGH_POWER_WARNING)) 9542 dd_dev_err(dd, "%s: Cable RX channel 1/2 power too high\n", 9543 __func__); 9544 9545 if ((qsfp_interrupt_status[3] & QSFP_LOW_POWER_ALARM) || 9546 (qsfp_interrupt_status[3] & QSFP_LOW_POWER_WARNING)) 9547 dd_dev_err(dd, "%s: Cable RX channel 1/2 power too low\n", 9548 __func__); 9549 9550 if ((qsfp_interrupt_status[4] & QSFP_HIGH_POWER_ALARM) || 9551 (qsfp_interrupt_status[4] & QSFP_HIGH_POWER_WARNING)) 9552 dd_dev_err(dd, "%s: Cable RX channel 3/4 power too high\n", 9553 __func__); 9554 9555 if ((qsfp_interrupt_status[4] & QSFP_LOW_POWER_ALARM) || 9556 (qsfp_interrupt_status[4] & QSFP_LOW_POWER_WARNING)) 9557 dd_dev_err(dd, "%s: Cable RX channel 3/4 power too low\n", 9558 __func__); 9559 9560 if ((qsfp_interrupt_status[5] & QSFP_HIGH_BIAS_ALARM) || 9561 (qsfp_interrupt_status[5] & QSFP_HIGH_BIAS_WARNING)) 9562 dd_dev_err(dd, "%s: Cable TX channel 1/2 bias too high\n", 9563 __func__); 9564 9565 if ((qsfp_interrupt_status[5] & QSFP_LOW_BIAS_ALARM) || 9566 (qsfp_interrupt_status[5] & QSFP_LOW_BIAS_WARNING)) 9567 dd_dev_err(dd, "%s: Cable TX channel 1/2 bias too low\n", 9568 __func__); 9569 9570 if ((qsfp_interrupt_status[6] & QSFP_HIGH_BIAS_ALARM) || 9571 (qsfp_interrupt_status[6] & QSFP_HIGH_BIAS_WARNING)) 9572 dd_dev_err(dd, "%s: Cable TX channel 3/4 bias too high\n", 9573 __func__); 9574 9575 if ((qsfp_interrupt_status[6] & QSFP_LOW_BIAS_ALARM) || 9576 (qsfp_interrupt_status[6] & QSFP_LOW_BIAS_WARNING)) 9577 dd_dev_err(dd, "%s: Cable TX channel 3/4 bias too low\n", 9578 __func__); 9579 9580 if ((qsfp_interrupt_status[7] & QSFP_HIGH_POWER_ALARM) || 9581 (qsfp_interrupt_status[7] & QSFP_HIGH_POWER_WARNING)) 9582 dd_dev_err(dd, "%s: Cable TX channel 1/2 power too high\n", 9583 __func__); 9584 9585 if ((qsfp_interrupt_status[7] & QSFP_LOW_POWER_ALARM) || 9586 (qsfp_interrupt_status[7] & QSFP_LOW_POWER_WARNING)) 9587 dd_dev_err(dd, "%s: Cable TX channel 1/2 power too low\n", 9588 __func__); 9589 9590 if ((qsfp_interrupt_status[8] & QSFP_HIGH_POWER_ALARM) || 9591 (qsfp_interrupt_status[8] & QSFP_HIGH_POWER_WARNING)) 9592 dd_dev_err(dd, "%s: Cable TX channel 3/4 power too high\n", 9593 __func__); 9594 9595 if ((qsfp_interrupt_status[8] & QSFP_LOW_POWER_ALARM) || 9596 (qsfp_interrupt_status[8] & QSFP_LOW_POWER_WARNING)) 9597 dd_dev_err(dd, "%s: Cable TX channel 3/4 power too low\n", 9598 __func__); 9599 9600 /* Bytes 9-10 and 11-12 are reserved */ 9601 /* Bytes 13-15 are vendor specific */ 9602 9603 return 0; 9604 } 9605 9606 /* This routine will only be scheduled if the QSFP module present is asserted */ 9607 void qsfp_event(struct work_struct *work) 9608 { 9609 struct qsfp_data *qd; 9610 struct hfi1_pportdata *ppd; 9611 struct hfi1_devdata *dd; 9612 9613 qd = container_of(work, struct qsfp_data, qsfp_work); 9614 ppd = qd->ppd; 9615 dd = ppd->dd; 9616 9617 /* Sanity check */ 9618 if (!qsfp_mod_present(ppd)) 9619 return; 9620 9621 if (ppd->host_link_state == HLS_DN_DISABLE) { 9622 dd_dev_info(ppd->dd, 9623 "%s: stopping link start because link is disabled\n", 9624 __func__); 9625 return; 9626 } 9627 9628 /* 9629 * Turn DC back on after cable has been re-inserted. Up until 9630 * now, the DC has been in reset to save power. 9631 */ 9632 dc_start(dd); 9633 9634 if (qd->cache_refresh_required) { 9635 set_qsfp_int_n(ppd, 0); 9636 9637 wait_for_qsfp_init(ppd); 9638 9639 /* 9640 * Allow INT_N to trigger the QSFP interrupt to watch 9641 * for alarms and warnings 9642 */ 9643 set_qsfp_int_n(ppd, 1); 9644 9645 start_link(ppd); 9646 } 9647 9648 if (qd->check_interrupt_flags) { 9649 u8 qsfp_interrupt_status[16] = {0,}; 9650 9651 if (one_qsfp_read(ppd, dd->hfi1_id, 6, 9652 &qsfp_interrupt_status[0], 16) != 16) { 9653 dd_dev_info(dd, 9654 "%s: Failed to read status of QSFP module\n", 9655 __func__); 9656 } else { 9657 unsigned long flags; 9658 9659 handle_qsfp_error_conditions( 9660 ppd, qsfp_interrupt_status); 9661 spin_lock_irqsave(&ppd->qsfp_info.qsfp_lock, flags); 9662 ppd->qsfp_info.check_interrupt_flags = 0; 9663 spin_unlock_irqrestore(&ppd->qsfp_info.qsfp_lock, 9664 flags); 9665 } 9666 } 9667 } 9668 9669 void init_qsfp_int(struct hfi1_devdata *dd) 9670 { 9671 struct hfi1_pportdata *ppd = dd->pport; 9672 u64 qsfp_mask; 9673 9674 qsfp_mask = (u64)(QSFP_HFI0_INT_N | QSFP_HFI0_MODPRST_N); 9675 /* Clear current status to avoid spurious interrupts */ 9676 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_CLEAR : ASIC_QSFP1_CLEAR, 9677 qsfp_mask); 9678 write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK, 9679 qsfp_mask); 9680 9681 set_qsfp_int_n(ppd, 0); 9682 9683 /* Handle active low nature of INT_N and MODPRST_N pins */ 9684 if (qsfp_mod_present(ppd)) 9685 qsfp_mask &= ~(u64)QSFP_HFI0_MODPRST_N; 9686 write_csr(dd, 9687 dd->hfi1_id ? ASIC_QSFP2_INVERT : ASIC_QSFP1_INVERT, 9688 qsfp_mask); 9689 9690 /* Enable the appropriate QSFP IRQ source */ 9691 if (!dd->hfi1_id) 9692 set_intr_bits(dd, QSFP1_INT, QSFP1_INT, true); 9693 else 9694 set_intr_bits(dd, QSFP2_INT, QSFP2_INT, true); 9695 } 9696 9697 /* 9698 * Do a one-time initialize of the LCB block. 9699 */ 9700 static void init_lcb(struct hfi1_devdata *dd) 9701 { 9702 /* simulator does not correctly handle LCB cclk loopback, skip */ 9703 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) 9704 return; 9705 9706 /* the DC has been reset earlier in the driver load */ 9707 9708 /* set LCB for cclk loopback on the port */ 9709 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x01); 9710 write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0x00); 9711 write_csr(dd, DC_LCB_CFG_REINIT_AS_SLAVE, 0x00); 9712 write_csr(dd, DC_LCB_CFG_CNT_FOR_SKIP_STALL, 0x110); 9713 write_csr(dd, DC_LCB_CFG_CLK_CNTR, 0x08); 9714 write_csr(dd, DC_LCB_CFG_LOOPBACK, 0x02); 9715 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x00); 9716 } 9717 9718 /* 9719 * Perform a test read on the QSFP. Return 0 on success, -ERRNO 9720 * on error. 9721 */ 9722 static int test_qsfp_read(struct hfi1_pportdata *ppd) 9723 { 9724 int ret; 9725 u8 status; 9726 9727 /* 9728 * Report success if not a QSFP or, if it is a QSFP, but the cable is 9729 * not present 9730 */ 9731 if (ppd->port_type != PORT_TYPE_QSFP || !qsfp_mod_present(ppd)) 9732 return 0; 9733 9734 /* read byte 2, the status byte */ 9735 ret = one_qsfp_read(ppd, ppd->dd->hfi1_id, 2, &status, 1); 9736 if (ret < 0) 9737 return ret; 9738 if (ret != 1) 9739 return -EIO; 9740 9741 return 0; /* success */ 9742 } 9743 9744 /* 9745 * Values for QSFP retry. 9746 * 9747 * Give up after 10s (20 x 500ms). The overall timeout was empirically 9748 * arrived at from experience on a large cluster. 9749 */ 9750 #define MAX_QSFP_RETRIES 20 9751 #define QSFP_RETRY_WAIT 500 /* msec */ 9752 9753 /* 9754 * Try a QSFP read. If it fails, schedule a retry for later. 9755 * Called on first link activation after driver load. 9756 */ 9757 static void try_start_link(struct hfi1_pportdata *ppd) 9758 { 9759 if (test_qsfp_read(ppd)) { 9760 /* read failed */ 9761 if (ppd->qsfp_retry_count >= MAX_QSFP_RETRIES) { 9762 dd_dev_err(ppd->dd, "QSFP not responding, giving up\n"); 9763 return; 9764 } 9765 dd_dev_info(ppd->dd, 9766 "QSFP not responding, waiting and retrying %d\n", 9767 (int)ppd->qsfp_retry_count); 9768 ppd->qsfp_retry_count++; 9769 queue_delayed_work(ppd->link_wq, &ppd->start_link_work, 9770 msecs_to_jiffies(QSFP_RETRY_WAIT)); 9771 return; 9772 } 9773 ppd->qsfp_retry_count = 0; 9774 9775 start_link(ppd); 9776 } 9777 9778 /* 9779 * Workqueue function to start the link after a delay. 9780 */ 9781 void handle_start_link(struct work_struct *work) 9782 { 9783 struct hfi1_pportdata *ppd = container_of(work, struct hfi1_pportdata, 9784 start_link_work.work); 9785 try_start_link(ppd); 9786 } 9787 9788 int bringup_serdes(struct hfi1_pportdata *ppd) 9789 { 9790 struct hfi1_devdata *dd = ppd->dd; 9791 u64 guid; 9792 int ret; 9793 9794 if (HFI1_CAP_IS_KSET(EXTENDED_PSN)) 9795 add_rcvctrl(dd, RCV_CTRL_RCV_EXTENDED_PSN_ENABLE_SMASK); 9796 9797 guid = ppd->guids[HFI1_PORT_GUID_INDEX]; 9798 if (!guid) { 9799 if (dd->base_guid) 9800 guid = dd->base_guid + ppd->port - 1; 9801 ppd->guids[HFI1_PORT_GUID_INDEX] = guid; 9802 } 9803 9804 /* Set linkinit_reason on power up per OPA spec */ 9805 ppd->linkinit_reason = OPA_LINKINIT_REASON_LINKUP; 9806 9807 /* one-time init of the LCB */ 9808 init_lcb(dd); 9809 9810 if (loopback) { 9811 ret = init_loopback(dd); 9812 if (ret < 0) 9813 return ret; 9814 } 9815 9816 get_port_type(ppd); 9817 if (ppd->port_type == PORT_TYPE_QSFP) { 9818 set_qsfp_int_n(ppd, 0); 9819 wait_for_qsfp_init(ppd); 9820 set_qsfp_int_n(ppd, 1); 9821 } 9822 9823 try_start_link(ppd); 9824 return 0; 9825 } 9826 9827 void hfi1_quiet_serdes(struct hfi1_pportdata *ppd) 9828 { 9829 struct hfi1_devdata *dd = ppd->dd; 9830 9831 /* 9832 * Shut down the link and keep it down. First turn off that the 9833 * driver wants to allow the link to be up (driver_link_ready). 9834 * Then make sure the link is not automatically restarted 9835 * (link_enabled). Cancel any pending restart. And finally 9836 * go offline. 9837 */ 9838 ppd->driver_link_ready = 0; 9839 ppd->link_enabled = 0; 9840 9841 ppd->qsfp_retry_count = MAX_QSFP_RETRIES; /* prevent more retries */ 9842 flush_delayed_work(&ppd->start_link_work); 9843 cancel_delayed_work_sync(&ppd->start_link_work); 9844 9845 ppd->offline_disabled_reason = 9846 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_REBOOT); 9847 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_REBOOT, 0, 9848 OPA_LINKDOWN_REASON_REBOOT); 9849 set_link_state(ppd, HLS_DN_OFFLINE); 9850 9851 /* disable the port */ 9852 clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 9853 cancel_work_sync(&ppd->freeze_work); 9854 } 9855 9856 static inline int init_cpu_counters(struct hfi1_devdata *dd) 9857 { 9858 struct hfi1_pportdata *ppd; 9859 int i; 9860 9861 ppd = (struct hfi1_pportdata *)(dd + 1); 9862 for (i = 0; i < dd->num_pports; i++, ppd++) { 9863 ppd->ibport_data.rvp.rc_acks = NULL; 9864 ppd->ibport_data.rvp.rc_qacks = NULL; 9865 ppd->ibport_data.rvp.rc_acks = alloc_percpu(u64); 9866 ppd->ibport_data.rvp.rc_qacks = alloc_percpu(u64); 9867 ppd->ibport_data.rvp.rc_delayed_comp = alloc_percpu(u64); 9868 if (!ppd->ibport_data.rvp.rc_acks || 9869 !ppd->ibport_data.rvp.rc_delayed_comp || 9870 !ppd->ibport_data.rvp.rc_qacks) 9871 return -ENOMEM; 9872 } 9873 9874 return 0; 9875 } 9876 9877 /* 9878 * index is the index into the receive array 9879 */ 9880 void hfi1_put_tid(struct hfi1_devdata *dd, u32 index, 9881 u32 type, unsigned long pa, u16 order) 9882 { 9883 u64 reg; 9884 9885 if (!(dd->flags & HFI1_PRESENT)) 9886 goto done; 9887 9888 if (type == PT_INVALID || type == PT_INVALID_FLUSH) { 9889 pa = 0; 9890 order = 0; 9891 } else if (type > PT_INVALID) { 9892 dd_dev_err(dd, 9893 "unexpected receive array type %u for index %u, not handled\n", 9894 type, index); 9895 goto done; 9896 } 9897 trace_hfi1_put_tid(dd, index, type, pa, order); 9898 9899 #define RT_ADDR_SHIFT 12 /* 4KB kernel address boundary */ 9900 reg = RCV_ARRAY_RT_WRITE_ENABLE_SMASK 9901 | (u64)order << RCV_ARRAY_RT_BUF_SIZE_SHIFT 9902 | ((pa >> RT_ADDR_SHIFT) & RCV_ARRAY_RT_ADDR_MASK) 9903 << RCV_ARRAY_RT_ADDR_SHIFT; 9904 trace_hfi1_write_rcvarray(dd->rcvarray_wc + (index * 8), reg); 9905 writeq(reg, dd->rcvarray_wc + (index * 8)); 9906 9907 if (type == PT_EAGER || type == PT_INVALID_FLUSH || (index & 3) == 3) 9908 /* 9909 * Eager entries are written and flushed 9910 * 9911 * Expected entries are flushed every 4 writes 9912 */ 9913 flush_wc(); 9914 done: 9915 return; 9916 } 9917 9918 void hfi1_clear_tids(struct hfi1_ctxtdata *rcd) 9919 { 9920 struct hfi1_devdata *dd = rcd->dd; 9921 u32 i; 9922 9923 /* this could be optimized */ 9924 for (i = rcd->eager_base; i < rcd->eager_base + 9925 rcd->egrbufs.alloced; i++) 9926 hfi1_put_tid(dd, i, PT_INVALID, 0, 0); 9927 9928 for (i = rcd->expected_base; 9929 i < rcd->expected_base + rcd->expected_count; i++) 9930 hfi1_put_tid(dd, i, PT_INVALID, 0, 0); 9931 } 9932 9933 static const char * const ib_cfg_name_strings[] = { 9934 "HFI1_IB_CFG_LIDLMC", 9935 "HFI1_IB_CFG_LWID_DG_ENB", 9936 "HFI1_IB_CFG_LWID_ENB", 9937 "HFI1_IB_CFG_LWID", 9938 "HFI1_IB_CFG_SPD_ENB", 9939 "HFI1_IB_CFG_SPD", 9940 "HFI1_IB_CFG_RXPOL_ENB", 9941 "HFI1_IB_CFG_LREV_ENB", 9942 "HFI1_IB_CFG_LINKLATENCY", 9943 "HFI1_IB_CFG_HRTBT", 9944 "HFI1_IB_CFG_OP_VLS", 9945 "HFI1_IB_CFG_VL_HIGH_CAP", 9946 "HFI1_IB_CFG_VL_LOW_CAP", 9947 "HFI1_IB_CFG_OVERRUN_THRESH", 9948 "HFI1_IB_CFG_PHYERR_THRESH", 9949 "HFI1_IB_CFG_LINKDEFAULT", 9950 "HFI1_IB_CFG_PKEYS", 9951 "HFI1_IB_CFG_MTU", 9952 "HFI1_IB_CFG_LSTATE", 9953 "HFI1_IB_CFG_VL_HIGH_LIMIT", 9954 "HFI1_IB_CFG_PMA_TICKS", 9955 "HFI1_IB_CFG_PORT" 9956 }; 9957 9958 static const char *ib_cfg_name(int which) 9959 { 9960 if (which < 0 || which >= ARRAY_SIZE(ib_cfg_name_strings)) 9961 return "invalid"; 9962 return ib_cfg_name_strings[which]; 9963 } 9964 9965 int hfi1_get_ib_cfg(struct hfi1_pportdata *ppd, int which) 9966 { 9967 struct hfi1_devdata *dd = ppd->dd; 9968 int val = 0; 9969 9970 switch (which) { 9971 case HFI1_IB_CFG_LWID_ENB: /* allowed Link-width */ 9972 val = ppd->link_width_enabled; 9973 break; 9974 case HFI1_IB_CFG_LWID: /* currently active Link-width */ 9975 val = ppd->link_width_active; 9976 break; 9977 case HFI1_IB_CFG_SPD_ENB: /* allowed Link speeds */ 9978 val = ppd->link_speed_enabled; 9979 break; 9980 case HFI1_IB_CFG_SPD: /* current Link speed */ 9981 val = ppd->link_speed_active; 9982 break; 9983 9984 case HFI1_IB_CFG_RXPOL_ENB: /* Auto-RX-polarity enable */ 9985 case HFI1_IB_CFG_LREV_ENB: /* Auto-Lane-reversal enable */ 9986 case HFI1_IB_CFG_LINKLATENCY: 9987 goto unimplemented; 9988 9989 case HFI1_IB_CFG_OP_VLS: 9990 val = ppd->actual_vls_operational; 9991 break; 9992 case HFI1_IB_CFG_VL_HIGH_CAP: /* VL arb high priority table size */ 9993 val = VL_ARB_HIGH_PRIO_TABLE_SIZE; 9994 break; 9995 case HFI1_IB_CFG_VL_LOW_CAP: /* VL arb low priority table size */ 9996 val = VL_ARB_LOW_PRIO_TABLE_SIZE; 9997 break; 9998 case HFI1_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ 9999 val = ppd->overrun_threshold; 10000 break; 10001 case HFI1_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ 10002 val = ppd->phy_error_threshold; 10003 break; 10004 case HFI1_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ 10005 val = HLS_DEFAULT; 10006 break; 10007 10008 case HFI1_IB_CFG_HRTBT: /* Heartbeat off/enable/auto */ 10009 case HFI1_IB_CFG_PMA_TICKS: 10010 default: 10011 unimplemented: 10012 if (HFI1_CAP_IS_KSET(PRINT_UNIMPL)) 10013 dd_dev_info( 10014 dd, 10015 "%s: which %s: not implemented\n", 10016 __func__, 10017 ib_cfg_name(which)); 10018 break; 10019 } 10020 10021 return val; 10022 } 10023 10024 /* 10025 * The largest MAD packet size. 10026 */ 10027 #define MAX_MAD_PACKET 2048 10028 10029 /* 10030 * Return the maximum header bytes that can go on the _wire_ 10031 * for this device. This count includes the ICRC which is 10032 * not part of the packet held in memory but it is appended 10033 * by the HW. 10034 * This is dependent on the device's receive header entry size. 10035 * HFI allows this to be set per-receive context, but the 10036 * driver presently enforces a global value. 10037 */ 10038 u32 lrh_max_header_bytes(struct hfi1_devdata *dd) 10039 { 10040 /* 10041 * The maximum non-payload (MTU) bytes in LRH.PktLen are 10042 * the Receive Header Entry Size minus the PBC (or RHF) size 10043 * plus one DW for the ICRC appended by HW. 10044 * 10045 * dd->rcd[0].rcvhdrqentsize is in DW. 10046 * We use rcd[0] as all context will have the same value. Also, 10047 * the first kernel context would have been allocated by now so 10048 * we are guaranteed a valid value. 10049 */ 10050 return (dd->rcd[0]->rcvhdrqentsize - 2/*PBC/RHF*/ + 1/*ICRC*/) << 2; 10051 } 10052 10053 /* 10054 * Set Send Length 10055 * @ppd - per port data 10056 * 10057 * Set the MTU by limiting how many DWs may be sent. The SendLenCheck* 10058 * registers compare against LRH.PktLen, so use the max bytes included 10059 * in the LRH. 10060 * 10061 * This routine changes all VL values except VL15, which it maintains at 10062 * the same value. 10063 */ 10064 static void set_send_length(struct hfi1_pportdata *ppd) 10065 { 10066 struct hfi1_devdata *dd = ppd->dd; 10067 u32 max_hb = lrh_max_header_bytes(dd), dcmtu; 10068 u32 maxvlmtu = dd->vld[15].mtu; 10069 u64 len1 = 0, len2 = (((dd->vld[15].mtu + max_hb) >> 2) 10070 & SEND_LEN_CHECK1_LEN_VL15_MASK) << 10071 SEND_LEN_CHECK1_LEN_VL15_SHIFT; 10072 int i, j; 10073 u32 thres; 10074 10075 for (i = 0; i < ppd->vls_supported; i++) { 10076 if (dd->vld[i].mtu > maxvlmtu) 10077 maxvlmtu = dd->vld[i].mtu; 10078 if (i <= 3) 10079 len1 |= (((dd->vld[i].mtu + max_hb) >> 2) 10080 & SEND_LEN_CHECK0_LEN_VL0_MASK) << 10081 ((i % 4) * SEND_LEN_CHECK0_LEN_VL1_SHIFT); 10082 else 10083 len2 |= (((dd->vld[i].mtu + max_hb) >> 2) 10084 & SEND_LEN_CHECK1_LEN_VL4_MASK) << 10085 ((i % 4) * SEND_LEN_CHECK1_LEN_VL5_SHIFT); 10086 } 10087 write_csr(dd, SEND_LEN_CHECK0, len1); 10088 write_csr(dd, SEND_LEN_CHECK1, len2); 10089 /* adjust kernel credit return thresholds based on new MTUs */ 10090 /* all kernel receive contexts have the same hdrqentsize */ 10091 for (i = 0; i < ppd->vls_supported; i++) { 10092 thres = min(sc_percent_to_threshold(dd->vld[i].sc, 50), 10093 sc_mtu_to_threshold(dd->vld[i].sc, 10094 dd->vld[i].mtu, 10095 dd->rcd[0]->rcvhdrqentsize)); 10096 for (j = 0; j < INIT_SC_PER_VL; j++) 10097 sc_set_cr_threshold( 10098 pio_select_send_context_vl(dd, j, i), 10099 thres); 10100 } 10101 thres = min(sc_percent_to_threshold(dd->vld[15].sc, 50), 10102 sc_mtu_to_threshold(dd->vld[15].sc, 10103 dd->vld[15].mtu, 10104 dd->rcd[0]->rcvhdrqentsize)); 10105 sc_set_cr_threshold(dd->vld[15].sc, thres); 10106 10107 /* Adjust maximum MTU for the port in DC */ 10108 dcmtu = maxvlmtu == 10240 ? DCC_CFG_PORT_MTU_CAP_10240 : 10109 (ilog2(maxvlmtu >> 8) + 1); 10110 len1 = read_csr(ppd->dd, DCC_CFG_PORT_CONFIG); 10111 len1 &= ~DCC_CFG_PORT_CONFIG_MTU_CAP_SMASK; 10112 len1 |= ((u64)dcmtu & DCC_CFG_PORT_CONFIG_MTU_CAP_MASK) << 10113 DCC_CFG_PORT_CONFIG_MTU_CAP_SHIFT; 10114 write_csr(ppd->dd, DCC_CFG_PORT_CONFIG, len1); 10115 } 10116 10117 static void set_lidlmc(struct hfi1_pportdata *ppd) 10118 { 10119 int i; 10120 u64 sreg = 0; 10121 struct hfi1_devdata *dd = ppd->dd; 10122 u32 mask = ~((1U << ppd->lmc) - 1); 10123 u64 c1 = read_csr(ppd->dd, DCC_CFG_PORT_CONFIG1); 10124 u32 lid; 10125 10126 /* 10127 * Program 0 in CSR if port lid is extended. This prevents 10128 * 9B packets being sent out for large lids. 10129 */ 10130 lid = (ppd->lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) ? 0 : ppd->lid; 10131 c1 &= ~(DCC_CFG_PORT_CONFIG1_TARGET_DLID_SMASK 10132 | DCC_CFG_PORT_CONFIG1_DLID_MASK_SMASK); 10133 c1 |= ((lid & DCC_CFG_PORT_CONFIG1_TARGET_DLID_MASK) 10134 << DCC_CFG_PORT_CONFIG1_TARGET_DLID_SHIFT) | 10135 ((mask & DCC_CFG_PORT_CONFIG1_DLID_MASK_MASK) 10136 << DCC_CFG_PORT_CONFIG1_DLID_MASK_SHIFT); 10137 write_csr(ppd->dd, DCC_CFG_PORT_CONFIG1, c1); 10138 10139 /* 10140 * Iterate over all the send contexts and set their SLID check 10141 */ 10142 sreg = ((mask & SEND_CTXT_CHECK_SLID_MASK_MASK) << 10143 SEND_CTXT_CHECK_SLID_MASK_SHIFT) | 10144 (((lid & mask) & SEND_CTXT_CHECK_SLID_VALUE_MASK) << 10145 SEND_CTXT_CHECK_SLID_VALUE_SHIFT); 10146 10147 for (i = 0; i < chip_send_contexts(dd); i++) { 10148 hfi1_cdbg(LINKVERB, "SendContext[%d].SLID_CHECK = 0x%x", 10149 i, (u32)sreg); 10150 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_SLID, sreg); 10151 } 10152 10153 /* Now we have to do the same thing for the sdma engines */ 10154 sdma_update_lmc(dd, mask, lid); 10155 } 10156 10157 static const char *state_completed_string(u32 completed) 10158 { 10159 static const char * const state_completed[] = { 10160 "EstablishComm", 10161 "OptimizeEQ", 10162 "VerifyCap" 10163 }; 10164 10165 if (completed < ARRAY_SIZE(state_completed)) 10166 return state_completed[completed]; 10167 10168 return "unknown"; 10169 } 10170 10171 static const char all_lanes_dead_timeout_expired[] = 10172 "All lanes were inactive – was the interconnect media removed?"; 10173 static const char tx_out_of_policy[] = 10174 "Passing lanes on local port do not meet the local link width policy"; 10175 static const char no_state_complete[] = 10176 "State timeout occurred before link partner completed the state"; 10177 static const char * const state_complete_reasons[] = { 10178 [0x00] = "Reason unknown", 10179 [0x01] = "Link was halted by driver, refer to LinkDownReason", 10180 [0x02] = "Link partner reported failure", 10181 [0x10] = "Unable to achieve frame sync on any lane", 10182 [0x11] = 10183 "Unable to find a common bit rate with the link partner", 10184 [0x12] = 10185 "Unable to achieve frame sync on sufficient lanes to meet the local link width policy", 10186 [0x13] = 10187 "Unable to identify preset equalization on sufficient lanes to meet the local link width policy", 10188 [0x14] = no_state_complete, 10189 [0x15] = 10190 "State timeout occurred before link partner identified equalization presets", 10191 [0x16] = 10192 "Link partner completed the EstablishComm state, but the passing lanes do not meet the local link width policy", 10193 [0x17] = tx_out_of_policy, 10194 [0x20] = all_lanes_dead_timeout_expired, 10195 [0x21] = 10196 "Unable to achieve acceptable BER on sufficient lanes to meet the local link width policy", 10197 [0x22] = no_state_complete, 10198 [0x23] = 10199 "Link partner completed the OptimizeEq state, but the passing lanes do not meet the local link width policy", 10200 [0x24] = tx_out_of_policy, 10201 [0x30] = all_lanes_dead_timeout_expired, 10202 [0x31] = 10203 "State timeout occurred waiting for host to process received frames", 10204 [0x32] = no_state_complete, 10205 [0x33] = 10206 "Link partner completed the VerifyCap state, but the passing lanes do not meet the local link width policy", 10207 [0x34] = tx_out_of_policy, 10208 [0x35] = "Negotiated link width is mutually exclusive", 10209 [0x36] = 10210 "Timed out before receiving verifycap frames in VerifyCap.Exchange", 10211 [0x37] = "Unable to resolve secure data exchange", 10212 }; 10213 10214 static const char *state_complete_reason_code_string(struct hfi1_pportdata *ppd, 10215 u32 code) 10216 { 10217 const char *str = NULL; 10218 10219 if (code < ARRAY_SIZE(state_complete_reasons)) 10220 str = state_complete_reasons[code]; 10221 10222 if (str) 10223 return str; 10224 return "Reserved"; 10225 } 10226 10227 /* describe the given last state complete frame */ 10228 static void decode_state_complete(struct hfi1_pportdata *ppd, u32 frame, 10229 const char *prefix) 10230 { 10231 struct hfi1_devdata *dd = ppd->dd; 10232 u32 success; 10233 u32 state; 10234 u32 reason; 10235 u32 lanes; 10236 10237 /* 10238 * Decode frame: 10239 * [ 0: 0] - success 10240 * [ 3: 1] - state 10241 * [ 7: 4] - next state timeout 10242 * [15: 8] - reason code 10243 * [31:16] - lanes 10244 */ 10245 success = frame & 0x1; 10246 state = (frame >> 1) & 0x7; 10247 reason = (frame >> 8) & 0xff; 10248 lanes = (frame >> 16) & 0xffff; 10249 10250 dd_dev_err(dd, "Last %s LNI state complete frame 0x%08x:\n", 10251 prefix, frame); 10252 dd_dev_err(dd, " last reported state state: %s (0x%x)\n", 10253 state_completed_string(state), state); 10254 dd_dev_err(dd, " state successfully completed: %s\n", 10255 success ? "yes" : "no"); 10256 dd_dev_err(dd, " fail reason 0x%x: %s\n", 10257 reason, state_complete_reason_code_string(ppd, reason)); 10258 dd_dev_err(dd, " passing lane mask: 0x%x", lanes); 10259 } 10260 10261 /* 10262 * Read the last state complete frames and explain them. This routine 10263 * expects to be called if the link went down during link negotiation 10264 * and initialization (LNI). That is, anywhere between polling and link up. 10265 */ 10266 static void check_lni_states(struct hfi1_pportdata *ppd) 10267 { 10268 u32 last_local_state; 10269 u32 last_remote_state; 10270 10271 read_last_local_state(ppd->dd, &last_local_state); 10272 read_last_remote_state(ppd->dd, &last_remote_state); 10273 10274 /* 10275 * Don't report anything if there is nothing to report. A value of 10276 * 0 means the link was taken down while polling and there was no 10277 * training in-process. 10278 */ 10279 if (last_local_state == 0 && last_remote_state == 0) 10280 return; 10281 10282 decode_state_complete(ppd, last_local_state, "transmitted"); 10283 decode_state_complete(ppd, last_remote_state, "received"); 10284 } 10285 10286 /* wait for wait_ms for LINK_TRANSFER_ACTIVE to go to 1 */ 10287 static int wait_link_transfer_active(struct hfi1_devdata *dd, int wait_ms) 10288 { 10289 u64 reg; 10290 unsigned long timeout; 10291 10292 /* watch LCB_STS_LINK_TRANSFER_ACTIVE */ 10293 timeout = jiffies + msecs_to_jiffies(wait_ms); 10294 while (1) { 10295 reg = read_csr(dd, DC_LCB_STS_LINK_TRANSFER_ACTIVE); 10296 if (reg) 10297 break; 10298 if (time_after(jiffies, timeout)) { 10299 dd_dev_err(dd, 10300 "timeout waiting for LINK_TRANSFER_ACTIVE\n"); 10301 return -ETIMEDOUT; 10302 } 10303 udelay(2); 10304 } 10305 return 0; 10306 } 10307 10308 /* called when the logical link state is not down as it should be */ 10309 static void force_logical_link_state_down(struct hfi1_pportdata *ppd) 10310 { 10311 struct hfi1_devdata *dd = ppd->dd; 10312 10313 /* 10314 * Bring link up in LCB loopback 10315 */ 10316 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 1); 10317 write_csr(dd, DC_LCB_CFG_IGNORE_LOST_RCLK, 10318 DC_LCB_CFG_IGNORE_LOST_RCLK_EN_SMASK); 10319 10320 write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0); 10321 write_csr(dd, DC_LCB_CFG_REINIT_AS_SLAVE, 0); 10322 write_csr(dd, DC_LCB_CFG_CNT_FOR_SKIP_STALL, 0x110); 10323 write_csr(dd, DC_LCB_CFG_LOOPBACK, 0x2); 10324 10325 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0); 10326 (void)read_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET); 10327 udelay(3); 10328 write_csr(dd, DC_LCB_CFG_ALLOW_LINK_UP, 1); 10329 write_csr(dd, DC_LCB_CFG_RUN, 1ull << DC_LCB_CFG_RUN_EN_SHIFT); 10330 10331 wait_link_transfer_active(dd, 100); 10332 10333 /* 10334 * Bring the link down again. 10335 */ 10336 write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 1); 10337 write_csr(dd, DC_LCB_CFG_ALLOW_LINK_UP, 0); 10338 write_csr(dd, DC_LCB_CFG_IGNORE_LOST_RCLK, 0); 10339 10340 dd_dev_info(ppd->dd, "logical state forced to LINK_DOWN\n"); 10341 } 10342 10343 /* 10344 * Helper for set_link_state(). Do not call except from that routine. 10345 * Expects ppd->hls_mutex to be held. 10346 * 10347 * @rem_reason value to be sent to the neighbor 10348 * 10349 * LinkDownReasons only set if transition succeeds. 10350 */ 10351 static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason) 10352 { 10353 struct hfi1_devdata *dd = ppd->dd; 10354 u32 previous_state; 10355 int offline_state_ret; 10356 int ret; 10357 10358 update_lcb_cache(dd); 10359 10360 previous_state = ppd->host_link_state; 10361 ppd->host_link_state = HLS_GOING_OFFLINE; 10362 10363 /* start offline transition */ 10364 ret = set_physical_link_state(dd, (rem_reason << 8) | PLS_OFFLINE); 10365 10366 if (ret != HCMD_SUCCESS) { 10367 dd_dev_err(dd, 10368 "Failed to transition to Offline link state, return %d\n", 10369 ret); 10370 return -EINVAL; 10371 } 10372 if (ppd->offline_disabled_reason == 10373 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE)) 10374 ppd->offline_disabled_reason = 10375 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT); 10376 10377 offline_state_ret = wait_phys_link_offline_substates(ppd, 10000); 10378 if (offline_state_ret < 0) 10379 return offline_state_ret; 10380 10381 /* Disabling AOC transmitters */ 10382 if (ppd->port_type == PORT_TYPE_QSFP && 10383 ppd->qsfp_info.limiting_active && 10384 qsfp_mod_present(ppd)) { 10385 int ret; 10386 10387 ret = acquire_chip_resource(dd, qsfp_resource(dd), QSFP_WAIT); 10388 if (ret == 0) { 10389 set_qsfp_tx(ppd, 0); 10390 release_chip_resource(dd, qsfp_resource(dd)); 10391 } else { 10392 /* not fatal, but should warn */ 10393 dd_dev_err(dd, 10394 "Unable to acquire lock to turn off QSFP TX\n"); 10395 } 10396 } 10397 10398 /* 10399 * Wait for the offline.Quiet transition if it hasn't happened yet. It 10400 * can take a while for the link to go down. 10401 */ 10402 if (offline_state_ret != PLS_OFFLINE_QUIET) { 10403 ret = wait_physical_linkstate(ppd, PLS_OFFLINE, 30000); 10404 if (ret < 0) 10405 return ret; 10406 } 10407 10408 /* 10409 * Now in charge of LCB - must be after the physical state is 10410 * offline.quiet and before host_link_state is changed. 10411 */ 10412 set_host_lcb_access(dd); 10413 write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */ 10414 10415 /* make sure the logical state is also down */ 10416 ret = wait_logical_linkstate(ppd, IB_PORT_DOWN, 1000); 10417 if (ret) 10418 force_logical_link_state_down(ppd); 10419 10420 ppd->host_link_state = HLS_LINK_COOLDOWN; /* LCB access allowed */ 10421 update_statusp(ppd, IB_PORT_DOWN); 10422 10423 /* 10424 * The LNI has a mandatory wait time after the physical state 10425 * moves to Offline.Quiet. The wait time may be different 10426 * depending on how the link went down. The 8051 firmware 10427 * will observe the needed wait time and only move to ready 10428 * when that is completed. The largest of the quiet timeouts 10429 * is 6s, so wait that long and then at least 0.5s more for 10430 * other transitions, and another 0.5s for a buffer. 10431 */ 10432 ret = wait_fm_ready(dd, 7000); 10433 if (ret) { 10434 dd_dev_err(dd, 10435 "After going offline, timed out waiting for the 8051 to become ready to accept host requests\n"); 10436 /* state is really offline, so make it so */ 10437 ppd->host_link_state = HLS_DN_OFFLINE; 10438 return ret; 10439 } 10440 10441 /* 10442 * The state is now offline and the 8051 is ready to accept host 10443 * requests. 10444 * - change our state 10445 * - notify others if we were previously in a linkup state 10446 */ 10447 ppd->host_link_state = HLS_DN_OFFLINE; 10448 if (previous_state & HLS_UP) { 10449 /* went down while link was up */ 10450 handle_linkup_change(dd, 0); 10451 } else if (previous_state 10452 & (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) { 10453 /* went down while attempting link up */ 10454 check_lni_states(ppd); 10455 10456 /* The QSFP doesn't need to be reset on LNI failure */ 10457 ppd->qsfp_info.reset_needed = 0; 10458 } 10459 10460 /* the active link width (downgrade) is 0 on link down */ 10461 ppd->link_width_active = 0; 10462 ppd->link_width_downgrade_tx_active = 0; 10463 ppd->link_width_downgrade_rx_active = 0; 10464 ppd->current_egress_rate = 0; 10465 return 0; 10466 } 10467 10468 /* return the link state name */ 10469 static const char *link_state_name(u32 state) 10470 { 10471 const char *name; 10472 int n = ilog2(state); 10473 static const char * const names[] = { 10474 [__HLS_UP_INIT_BP] = "INIT", 10475 [__HLS_UP_ARMED_BP] = "ARMED", 10476 [__HLS_UP_ACTIVE_BP] = "ACTIVE", 10477 [__HLS_DN_DOWNDEF_BP] = "DOWNDEF", 10478 [__HLS_DN_POLL_BP] = "POLL", 10479 [__HLS_DN_DISABLE_BP] = "DISABLE", 10480 [__HLS_DN_OFFLINE_BP] = "OFFLINE", 10481 [__HLS_VERIFY_CAP_BP] = "VERIFY_CAP", 10482 [__HLS_GOING_UP_BP] = "GOING_UP", 10483 [__HLS_GOING_OFFLINE_BP] = "GOING_OFFLINE", 10484 [__HLS_LINK_COOLDOWN_BP] = "LINK_COOLDOWN" 10485 }; 10486 10487 name = n < ARRAY_SIZE(names) ? names[n] : NULL; 10488 return name ? name : "unknown"; 10489 } 10490 10491 /* return the link state reason name */ 10492 static const char *link_state_reason_name(struct hfi1_pportdata *ppd, u32 state) 10493 { 10494 if (state == HLS_UP_INIT) { 10495 switch (ppd->linkinit_reason) { 10496 case OPA_LINKINIT_REASON_LINKUP: 10497 return "(LINKUP)"; 10498 case OPA_LINKINIT_REASON_FLAPPING: 10499 return "(FLAPPING)"; 10500 case OPA_LINKINIT_OUTSIDE_POLICY: 10501 return "(OUTSIDE_POLICY)"; 10502 case OPA_LINKINIT_QUARANTINED: 10503 return "(QUARANTINED)"; 10504 case OPA_LINKINIT_INSUFIC_CAPABILITY: 10505 return "(INSUFIC_CAPABILITY)"; 10506 default: 10507 break; 10508 } 10509 } 10510 return ""; 10511 } 10512 10513 /* 10514 * driver_pstate - convert the driver's notion of a port's 10515 * state (an HLS_*) into a physical state (a {IB,OPA}_PORTPHYSSTATE_*). 10516 * Return -1 (converted to a u32) to indicate error. 10517 */ 10518 u32 driver_pstate(struct hfi1_pportdata *ppd) 10519 { 10520 switch (ppd->host_link_state) { 10521 case HLS_UP_INIT: 10522 case HLS_UP_ARMED: 10523 case HLS_UP_ACTIVE: 10524 return IB_PORTPHYSSTATE_LINKUP; 10525 case HLS_DN_POLL: 10526 return IB_PORTPHYSSTATE_POLLING; 10527 case HLS_DN_DISABLE: 10528 return IB_PORTPHYSSTATE_DISABLED; 10529 case HLS_DN_OFFLINE: 10530 return OPA_PORTPHYSSTATE_OFFLINE; 10531 case HLS_VERIFY_CAP: 10532 return IB_PORTPHYSSTATE_TRAINING; 10533 case HLS_GOING_UP: 10534 return IB_PORTPHYSSTATE_TRAINING; 10535 case HLS_GOING_OFFLINE: 10536 return OPA_PORTPHYSSTATE_OFFLINE; 10537 case HLS_LINK_COOLDOWN: 10538 return OPA_PORTPHYSSTATE_OFFLINE; 10539 case HLS_DN_DOWNDEF: 10540 default: 10541 dd_dev_err(ppd->dd, "invalid host_link_state 0x%x\n", 10542 ppd->host_link_state); 10543 return -1; 10544 } 10545 } 10546 10547 /* 10548 * driver_lstate - convert the driver's notion of a port's 10549 * state (an HLS_*) into a logical state (a IB_PORT_*). Return -1 10550 * (converted to a u32) to indicate error. 10551 */ 10552 u32 driver_lstate(struct hfi1_pportdata *ppd) 10553 { 10554 if (ppd->host_link_state && (ppd->host_link_state & HLS_DOWN)) 10555 return IB_PORT_DOWN; 10556 10557 switch (ppd->host_link_state & HLS_UP) { 10558 case HLS_UP_INIT: 10559 return IB_PORT_INIT; 10560 case HLS_UP_ARMED: 10561 return IB_PORT_ARMED; 10562 case HLS_UP_ACTIVE: 10563 return IB_PORT_ACTIVE; 10564 default: 10565 dd_dev_err(ppd->dd, "invalid host_link_state 0x%x\n", 10566 ppd->host_link_state); 10567 return -1; 10568 } 10569 } 10570 10571 void set_link_down_reason(struct hfi1_pportdata *ppd, u8 lcl_reason, 10572 u8 neigh_reason, u8 rem_reason) 10573 { 10574 if (ppd->local_link_down_reason.latest == 0 && 10575 ppd->neigh_link_down_reason.latest == 0) { 10576 ppd->local_link_down_reason.latest = lcl_reason; 10577 ppd->neigh_link_down_reason.latest = neigh_reason; 10578 ppd->remote_link_down_reason = rem_reason; 10579 } 10580 } 10581 10582 /** 10583 * data_vls_operational() - Verify if data VL BCT credits and MTU 10584 * are both set. 10585 * @ppd: pointer to hfi1_pportdata structure 10586 * 10587 * Return: true - Ok, false -otherwise. 10588 */ 10589 static inline bool data_vls_operational(struct hfi1_pportdata *ppd) 10590 { 10591 int i; 10592 u64 reg; 10593 10594 if (!ppd->actual_vls_operational) 10595 return false; 10596 10597 for (i = 0; i < ppd->vls_supported; i++) { 10598 reg = read_csr(ppd->dd, SEND_CM_CREDIT_VL + (8 * i)); 10599 if ((reg && !ppd->dd->vld[i].mtu) || 10600 (!reg && ppd->dd->vld[i].mtu)) 10601 return false; 10602 } 10603 10604 return true; 10605 } 10606 10607 /* 10608 * Change the physical and/or logical link state. 10609 * 10610 * Do not call this routine while inside an interrupt. It contains 10611 * calls to routines that can take multiple seconds to finish. 10612 * 10613 * Returns 0 on success, -errno on failure. 10614 */ 10615 int set_link_state(struct hfi1_pportdata *ppd, u32 state) 10616 { 10617 struct hfi1_devdata *dd = ppd->dd; 10618 struct ib_event event = {.device = NULL}; 10619 int ret1, ret = 0; 10620 int orig_new_state, poll_bounce; 10621 10622 mutex_lock(&ppd->hls_lock); 10623 10624 orig_new_state = state; 10625 if (state == HLS_DN_DOWNDEF) 10626 state = HLS_DEFAULT; 10627 10628 /* interpret poll -> poll as a link bounce */ 10629 poll_bounce = ppd->host_link_state == HLS_DN_POLL && 10630 state == HLS_DN_POLL; 10631 10632 dd_dev_info(dd, "%s: current %s, new %s %s%s\n", __func__, 10633 link_state_name(ppd->host_link_state), 10634 link_state_name(orig_new_state), 10635 poll_bounce ? "(bounce) " : "", 10636 link_state_reason_name(ppd, state)); 10637 10638 /* 10639 * If we're going to a (HLS_*) link state that implies the logical 10640 * link state is neither of (IB_PORT_ARMED, IB_PORT_ACTIVE), then 10641 * reset is_sm_config_started to 0. 10642 */ 10643 if (!(state & (HLS_UP_ARMED | HLS_UP_ACTIVE))) 10644 ppd->is_sm_config_started = 0; 10645 10646 /* 10647 * Do nothing if the states match. Let a poll to poll link bounce 10648 * go through. 10649 */ 10650 if (ppd->host_link_state == state && !poll_bounce) 10651 goto done; 10652 10653 switch (state) { 10654 case HLS_UP_INIT: 10655 if (ppd->host_link_state == HLS_DN_POLL && 10656 (quick_linkup || dd->icode == ICODE_FUNCTIONAL_SIMULATOR)) { 10657 /* 10658 * Quick link up jumps from polling to here. 10659 * 10660 * Whether in normal or loopback mode, the 10661 * simulator jumps from polling to link up. 10662 * Accept that here. 10663 */ 10664 /* OK */ 10665 } else if (ppd->host_link_state != HLS_GOING_UP) { 10666 goto unexpected; 10667 } 10668 10669 /* 10670 * Wait for Link_Up physical state. 10671 * Physical and Logical states should already be 10672 * be transitioned to LinkUp and LinkInit respectively. 10673 */ 10674 ret = wait_physical_linkstate(ppd, PLS_LINKUP, 1000); 10675 if (ret) { 10676 dd_dev_err(dd, 10677 "%s: physical state did not change to LINK-UP\n", 10678 __func__); 10679 break; 10680 } 10681 10682 ret = wait_logical_linkstate(ppd, IB_PORT_INIT, 1000); 10683 if (ret) { 10684 dd_dev_err(dd, 10685 "%s: logical state did not change to INIT\n", 10686 __func__); 10687 break; 10688 } 10689 10690 /* clear old transient LINKINIT_REASON code */ 10691 if (ppd->linkinit_reason >= OPA_LINKINIT_REASON_CLEAR) 10692 ppd->linkinit_reason = 10693 OPA_LINKINIT_REASON_LINKUP; 10694 10695 /* enable the port */ 10696 add_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK); 10697 10698 handle_linkup_change(dd, 1); 10699 pio_kernel_linkup(dd); 10700 10701 /* 10702 * After link up, a new link width will have been set. 10703 * Update the xmit counters with regards to the new 10704 * link width. 10705 */ 10706 update_xmit_counters(ppd, ppd->link_width_active); 10707 10708 ppd->host_link_state = HLS_UP_INIT; 10709 update_statusp(ppd, IB_PORT_INIT); 10710 break; 10711 case HLS_UP_ARMED: 10712 if (ppd->host_link_state != HLS_UP_INIT) 10713 goto unexpected; 10714 10715 if (!data_vls_operational(ppd)) { 10716 dd_dev_err(dd, 10717 "%s: Invalid data VL credits or mtu\n", 10718 __func__); 10719 ret = -EINVAL; 10720 break; 10721 } 10722 10723 set_logical_state(dd, LSTATE_ARMED); 10724 ret = wait_logical_linkstate(ppd, IB_PORT_ARMED, 1000); 10725 if (ret) { 10726 dd_dev_err(dd, 10727 "%s: logical state did not change to ARMED\n", 10728 __func__); 10729 break; 10730 } 10731 ppd->host_link_state = HLS_UP_ARMED; 10732 update_statusp(ppd, IB_PORT_ARMED); 10733 /* 10734 * The simulator does not currently implement SMA messages, 10735 * so neighbor_normal is not set. Set it here when we first 10736 * move to Armed. 10737 */ 10738 if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR) 10739 ppd->neighbor_normal = 1; 10740 break; 10741 case HLS_UP_ACTIVE: 10742 if (ppd->host_link_state != HLS_UP_ARMED) 10743 goto unexpected; 10744 10745 set_logical_state(dd, LSTATE_ACTIVE); 10746 ret = wait_logical_linkstate(ppd, IB_PORT_ACTIVE, 1000); 10747 if (ret) { 10748 dd_dev_err(dd, 10749 "%s: logical state did not change to ACTIVE\n", 10750 __func__); 10751 } else { 10752 /* tell all engines to go running */ 10753 sdma_all_running(dd); 10754 ppd->host_link_state = HLS_UP_ACTIVE; 10755 update_statusp(ppd, IB_PORT_ACTIVE); 10756 10757 /* Signal the IB layer that the port has went active */ 10758 event.device = &dd->verbs_dev.rdi.ibdev; 10759 event.element.port_num = ppd->port; 10760 event.event = IB_EVENT_PORT_ACTIVE; 10761 } 10762 break; 10763 case HLS_DN_POLL: 10764 if ((ppd->host_link_state == HLS_DN_DISABLE || 10765 ppd->host_link_state == HLS_DN_OFFLINE) && 10766 dd->dc_shutdown) 10767 dc_start(dd); 10768 /* Hand LED control to the DC */ 10769 write_csr(dd, DCC_CFG_LED_CNTRL, 0); 10770 10771 if (ppd->host_link_state != HLS_DN_OFFLINE) { 10772 u8 tmp = ppd->link_enabled; 10773 10774 ret = goto_offline(ppd, ppd->remote_link_down_reason); 10775 if (ret) { 10776 ppd->link_enabled = tmp; 10777 break; 10778 } 10779 ppd->remote_link_down_reason = 0; 10780 10781 if (ppd->driver_link_ready) 10782 ppd->link_enabled = 1; 10783 } 10784 10785 set_all_slowpath(ppd->dd); 10786 ret = set_local_link_attributes(ppd); 10787 if (ret) 10788 break; 10789 10790 ppd->port_error_action = 0; 10791 10792 if (quick_linkup) { 10793 /* quick linkup does not go into polling */ 10794 ret = do_quick_linkup(dd); 10795 } else { 10796 ret1 = set_physical_link_state(dd, PLS_POLLING); 10797 if (!ret1) 10798 ret1 = wait_phys_link_out_of_offline(ppd, 10799 3000); 10800 if (ret1 != HCMD_SUCCESS) { 10801 dd_dev_err(dd, 10802 "Failed to transition to Polling link state, return 0x%x\n", 10803 ret1); 10804 ret = -EINVAL; 10805 } 10806 } 10807 10808 /* 10809 * Change the host link state after requesting DC8051 to 10810 * change its physical state so that we can ignore any 10811 * interrupt with stale LNI(XX) error, which will not be 10812 * cleared until DC8051 transitions to Polling state. 10813 */ 10814 ppd->host_link_state = HLS_DN_POLL; 10815 ppd->offline_disabled_reason = 10816 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE); 10817 /* 10818 * If an error occurred above, go back to offline. The 10819 * caller may reschedule another attempt. 10820 */ 10821 if (ret) 10822 goto_offline(ppd, 0); 10823 else 10824 log_physical_state(ppd, PLS_POLLING); 10825 break; 10826 case HLS_DN_DISABLE: 10827 /* link is disabled */ 10828 ppd->link_enabled = 0; 10829 10830 /* allow any state to transition to disabled */ 10831 10832 /* must transition to offline first */ 10833 if (ppd->host_link_state != HLS_DN_OFFLINE) { 10834 ret = goto_offline(ppd, ppd->remote_link_down_reason); 10835 if (ret) 10836 break; 10837 ppd->remote_link_down_reason = 0; 10838 } 10839 10840 if (!dd->dc_shutdown) { 10841 ret1 = set_physical_link_state(dd, PLS_DISABLED); 10842 if (ret1 != HCMD_SUCCESS) { 10843 dd_dev_err(dd, 10844 "Failed to transition to Disabled link state, return 0x%x\n", 10845 ret1); 10846 ret = -EINVAL; 10847 break; 10848 } 10849 ret = wait_physical_linkstate(ppd, PLS_DISABLED, 10000); 10850 if (ret) { 10851 dd_dev_err(dd, 10852 "%s: physical state did not change to DISABLED\n", 10853 __func__); 10854 break; 10855 } 10856 dc_shutdown(dd); 10857 } 10858 ppd->host_link_state = HLS_DN_DISABLE; 10859 break; 10860 case HLS_DN_OFFLINE: 10861 if (ppd->host_link_state == HLS_DN_DISABLE) 10862 dc_start(dd); 10863 10864 /* allow any state to transition to offline */ 10865 ret = goto_offline(ppd, ppd->remote_link_down_reason); 10866 if (!ret) 10867 ppd->remote_link_down_reason = 0; 10868 break; 10869 case HLS_VERIFY_CAP: 10870 if (ppd->host_link_state != HLS_DN_POLL) 10871 goto unexpected; 10872 ppd->host_link_state = HLS_VERIFY_CAP; 10873 log_physical_state(ppd, PLS_CONFIGPHY_VERIFYCAP); 10874 break; 10875 case HLS_GOING_UP: 10876 if (ppd->host_link_state != HLS_VERIFY_CAP) 10877 goto unexpected; 10878 10879 ret1 = set_physical_link_state(dd, PLS_LINKUP); 10880 if (ret1 != HCMD_SUCCESS) { 10881 dd_dev_err(dd, 10882 "Failed to transition to link up state, return 0x%x\n", 10883 ret1); 10884 ret = -EINVAL; 10885 break; 10886 } 10887 ppd->host_link_state = HLS_GOING_UP; 10888 break; 10889 10890 case HLS_GOING_OFFLINE: /* transient within goto_offline() */ 10891 case HLS_LINK_COOLDOWN: /* transient within goto_offline() */ 10892 default: 10893 dd_dev_info(dd, "%s: state 0x%x: not supported\n", 10894 __func__, state); 10895 ret = -EINVAL; 10896 break; 10897 } 10898 10899 goto done; 10900 10901 unexpected: 10902 dd_dev_err(dd, "%s: unexpected state transition from %s to %s\n", 10903 __func__, link_state_name(ppd->host_link_state), 10904 link_state_name(state)); 10905 ret = -EINVAL; 10906 10907 done: 10908 mutex_unlock(&ppd->hls_lock); 10909 10910 if (event.device) 10911 ib_dispatch_event(&event); 10912 10913 return ret; 10914 } 10915 10916 int hfi1_set_ib_cfg(struct hfi1_pportdata *ppd, int which, u32 val) 10917 { 10918 u64 reg; 10919 int ret = 0; 10920 10921 switch (which) { 10922 case HFI1_IB_CFG_LIDLMC: 10923 set_lidlmc(ppd); 10924 break; 10925 case HFI1_IB_CFG_VL_HIGH_LIMIT: 10926 /* 10927 * The VL Arbitrator high limit is sent in units of 4k 10928 * bytes, while HFI stores it in units of 64 bytes. 10929 */ 10930 val *= 4096 / 64; 10931 reg = ((u64)val & SEND_HIGH_PRIORITY_LIMIT_LIMIT_MASK) 10932 << SEND_HIGH_PRIORITY_LIMIT_LIMIT_SHIFT; 10933 write_csr(ppd->dd, SEND_HIGH_PRIORITY_LIMIT, reg); 10934 break; 10935 case HFI1_IB_CFG_LINKDEFAULT: /* IB link default (sleep/poll) */ 10936 /* HFI only supports POLL as the default link down state */ 10937 if (val != HLS_DN_POLL) 10938 ret = -EINVAL; 10939 break; 10940 case HFI1_IB_CFG_OP_VLS: 10941 if (ppd->vls_operational != val) { 10942 ppd->vls_operational = val; 10943 if (!ppd->port) 10944 ret = -EINVAL; 10945 } 10946 break; 10947 /* 10948 * For link width, link width downgrade, and speed enable, always AND 10949 * the setting with what is actually supported. This has two benefits. 10950 * First, enabled can't have unsupported values, no matter what the 10951 * SM or FM might want. Second, the ALL_SUPPORTED wildcards that mean 10952 * "fill in with your supported value" have all the bits in the 10953 * field set, so simply ANDing with supported has the desired result. 10954 */ 10955 case HFI1_IB_CFG_LWID_ENB: /* set allowed Link-width */ 10956 ppd->link_width_enabled = val & ppd->link_width_supported; 10957 break; 10958 case HFI1_IB_CFG_LWID_DG_ENB: /* set allowed link width downgrade */ 10959 ppd->link_width_downgrade_enabled = 10960 val & ppd->link_width_downgrade_supported; 10961 break; 10962 case HFI1_IB_CFG_SPD_ENB: /* allowed Link speeds */ 10963 ppd->link_speed_enabled = val & ppd->link_speed_supported; 10964 break; 10965 case HFI1_IB_CFG_OVERRUN_THRESH: /* IB overrun threshold */ 10966 /* 10967 * HFI does not follow IB specs, save this value 10968 * so we can report it, if asked. 10969 */ 10970 ppd->overrun_threshold = val; 10971 break; 10972 case HFI1_IB_CFG_PHYERR_THRESH: /* IB PHY error threshold */ 10973 /* 10974 * HFI does not follow IB specs, save this value 10975 * so we can report it, if asked. 10976 */ 10977 ppd->phy_error_threshold = val; 10978 break; 10979 10980 case HFI1_IB_CFG_MTU: 10981 set_send_length(ppd); 10982 break; 10983 10984 case HFI1_IB_CFG_PKEYS: 10985 if (HFI1_CAP_IS_KSET(PKEY_CHECK)) 10986 set_partition_keys(ppd); 10987 break; 10988 10989 default: 10990 if (HFI1_CAP_IS_KSET(PRINT_UNIMPL)) 10991 dd_dev_info(ppd->dd, 10992 "%s: which %s, val 0x%x: not implemented\n", 10993 __func__, ib_cfg_name(which), val); 10994 break; 10995 } 10996 return ret; 10997 } 10998 10999 /* begin functions related to vl arbitration table caching */ 11000 static void init_vl_arb_caches(struct hfi1_pportdata *ppd) 11001 { 11002 int i; 11003 11004 BUILD_BUG_ON(VL_ARB_TABLE_SIZE != 11005 VL_ARB_LOW_PRIO_TABLE_SIZE); 11006 BUILD_BUG_ON(VL_ARB_TABLE_SIZE != 11007 VL_ARB_HIGH_PRIO_TABLE_SIZE); 11008 11009 /* 11010 * Note that we always return values directly from the 11011 * 'vl_arb_cache' (and do no CSR reads) in response to a 11012 * 'Get(VLArbTable)'. This is obviously correct after a 11013 * 'Set(VLArbTable)', since the cache will then be up to 11014 * date. But it's also correct prior to any 'Set(VLArbTable)' 11015 * since then both the cache, and the relevant h/w registers 11016 * will be zeroed. 11017 */ 11018 11019 for (i = 0; i < MAX_PRIO_TABLE; i++) 11020 spin_lock_init(&ppd->vl_arb_cache[i].lock); 11021 } 11022 11023 /* 11024 * vl_arb_lock_cache 11025 * 11026 * All other vl_arb_* functions should be called only after locking 11027 * the cache. 11028 */ 11029 static inline struct vl_arb_cache * 11030 vl_arb_lock_cache(struct hfi1_pportdata *ppd, int idx) 11031 { 11032 if (idx != LO_PRIO_TABLE && idx != HI_PRIO_TABLE) 11033 return NULL; 11034 spin_lock(&ppd->vl_arb_cache[idx].lock); 11035 return &ppd->vl_arb_cache[idx]; 11036 } 11037 11038 static inline void vl_arb_unlock_cache(struct hfi1_pportdata *ppd, int idx) 11039 { 11040 spin_unlock(&ppd->vl_arb_cache[idx].lock); 11041 } 11042 11043 static void vl_arb_get_cache(struct vl_arb_cache *cache, 11044 struct ib_vl_weight_elem *vl) 11045 { 11046 memcpy(vl, cache->table, VL_ARB_TABLE_SIZE * sizeof(*vl)); 11047 } 11048 11049 static void vl_arb_set_cache(struct vl_arb_cache *cache, 11050 struct ib_vl_weight_elem *vl) 11051 { 11052 memcpy(cache->table, vl, VL_ARB_TABLE_SIZE * sizeof(*vl)); 11053 } 11054 11055 static int vl_arb_match_cache(struct vl_arb_cache *cache, 11056 struct ib_vl_weight_elem *vl) 11057 { 11058 return !memcmp(cache->table, vl, VL_ARB_TABLE_SIZE * sizeof(*vl)); 11059 } 11060 11061 /* end functions related to vl arbitration table caching */ 11062 11063 static int set_vl_weights(struct hfi1_pportdata *ppd, u32 target, 11064 u32 size, struct ib_vl_weight_elem *vl) 11065 { 11066 struct hfi1_devdata *dd = ppd->dd; 11067 u64 reg; 11068 unsigned int i, is_up = 0; 11069 int drain, ret = 0; 11070 11071 mutex_lock(&ppd->hls_lock); 11072 11073 if (ppd->host_link_state & HLS_UP) 11074 is_up = 1; 11075 11076 drain = !is_ax(dd) && is_up; 11077 11078 if (drain) 11079 /* 11080 * Before adjusting VL arbitration weights, empty per-VL 11081 * FIFOs, otherwise a packet whose VL weight is being 11082 * set to 0 could get stuck in a FIFO with no chance to 11083 * egress. 11084 */ 11085 ret = stop_drain_data_vls(dd); 11086 11087 if (ret) { 11088 dd_dev_err( 11089 dd, 11090 "%s: cannot stop/drain VLs - refusing to change VL arbitration weights\n", 11091 __func__); 11092 goto err; 11093 } 11094 11095 for (i = 0; i < size; i++, vl++) { 11096 /* 11097 * NOTE: The low priority shift and mask are used here, but 11098 * they are the same for both the low and high registers. 11099 */ 11100 reg = (((u64)vl->vl & SEND_LOW_PRIORITY_LIST_VL_MASK) 11101 << SEND_LOW_PRIORITY_LIST_VL_SHIFT) 11102 | (((u64)vl->weight 11103 & SEND_LOW_PRIORITY_LIST_WEIGHT_MASK) 11104 << SEND_LOW_PRIORITY_LIST_WEIGHT_SHIFT); 11105 write_csr(dd, target + (i * 8), reg); 11106 } 11107 pio_send_control(dd, PSC_GLOBAL_VLARB_ENABLE); 11108 11109 if (drain) 11110 open_fill_data_vls(dd); /* reopen all VLs */ 11111 11112 err: 11113 mutex_unlock(&ppd->hls_lock); 11114 11115 return ret; 11116 } 11117 11118 /* 11119 * Read one credit merge VL register. 11120 */ 11121 static void read_one_cm_vl(struct hfi1_devdata *dd, u32 csr, 11122 struct vl_limit *vll) 11123 { 11124 u64 reg = read_csr(dd, csr); 11125 11126 vll->dedicated = cpu_to_be16( 11127 (reg >> SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_SHIFT) 11128 & SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_MASK); 11129 vll->shared = cpu_to_be16( 11130 (reg >> SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_SHIFT) 11131 & SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_MASK); 11132 } 11133 11134 /* 11135 * Read the current credit merge limits. 11136 */ 11137 static int get_buffer_control(struct hfi1_devdata *dd, 11138 struct buffer_control *bc, u16 *overall_limit) 11139 { 11140 u64 reg; 11141 int i; 11142 11143 /* not all entries are filled in */ 11144 memset(bc, 0, sizeof(*bc)); 11145 11146 /* OPA and HFI have a 1-1 mapping */ 11147 for (i = 0; i < TXE_NUM_DATA_VL; i++) 11148 read_one_cm_vl(dd, SEND_CM_CREDIT_VL + (8 * i), &bc->vl[i]); 11149 11150 /* NOTE: assumes that VL* and VL15 CSRs are bit-wise identical */ 11151 read_one_cm_vl(dd, SEND_CM_CREDIT_VL15, &bc->vl[15]); 11152 11153 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 11154 bc->overall_shared_limit = cpu_to_be16( 11155 (reg >> SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SHIFT) 11156 & SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_MASK); 11157 if (overall_limit) 11158 *overall_limit = (reg 11159 >> SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SHIFT) 11160 & SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_MASK; 11161 return sizeof(struct buffer_control); 11162 } 11163 11164 static int get_sc2vlnt(struct hfi1_devdata *dd, struct sc2vlnt *dp) 11165 { 11166 u64 reg; 11167 int i; 11168 11169 /* each register contains 16 SC->VLnt mappings, 4 bits each */ 11170 reg = read_csr(dd, DCC_CFG_SC_VL_TABLE_15_0); 11171 for (i = 0; i < sizeof(u64); i++) { 11172 u8 byte = *(((u8 *)®) + i); 11173 11174 dp->vlnt[2 * i] = byte & 0xf; 11175 dp->vlnt[(2 * i) + 1] = (byte & 0xf0) >> 4; 11176 } 11177 11178 reg = read_csr(dd, DCC_CFG_SC_VL_TABLE_31_16); 11179 for (i = 0; i < sizeof(u64); i++) { 11180 u8 byte = *(((u8 *)®) + i); 11181 11182 dp->vlnt[16 + (2 * i)] = byte & 0xf; 11183 dp->vlnt[16 + (2 * i) + 1] = (byte & 0xf0) >> 4; 11184 } 11185 return sizeof(struct sc2vlnt); 11186 } 11187 11188 static void get_vlarb_preempt(struct hfi1_devdata *dd, u32 nelems, 11189 struct ib_vl_weight_elem *vl) 11190 { 11191 unsigned int i; 11192 11193 for (i = 0; i < nelems; i++, vl++) { 11194 vl->vl = 0xf; 11195 vl->weight = 0; 11196 } 11197 } 11198 11199 static void set_sc2vlnt(struct hfi1_devdata *dd, struct sc2vlnt *dp) 11200 { 11201 write_csr(dd, DCC_CFG_SC_VL_TABLE_15_0, 11202 DC_SC_VL_VAL(15_0, 11203 0, dp->vlnt[0] & 0xf, 11204 1, dp->vlnt[1] & 0xf, 11205 2, dp->vlnt[2] & 0xf, 11206 3, dp->vlnt[3] & 0xf, 11207 4, dp->vlnt[4] & 0xf, 11208 5, dp->vlnt[5] & 0xf, 11209 6, dp->vlnt[6] & 0xf, 11210 7, dp->vlnt[7] & 0xf, 11211 8, dp->vlnt[8] & 0xf, 11212 9, dp->vlnt[9] & 0xf, 11213 10, dp->vlnt[10] & 0xf, 11214 11, dp->vlnt[11] & 0xf, 11215 12, dp->vlnt[12] & 0xf, 11216 13, dp->vlnt[13] & 0xf, 11217 14, dp->vlnt[14] & 0xf, 11218 15, dp->vlnt[15] & 0xf)); 11219 write_csr(dd, DCC_CFG_SC_VL_TABLE_31_16, 11220 DC_SC_VL_VAL(31_16, 11221 16, dp->vlnt[16] & 0xf, 11222 17, dp->vlnt[17] & 0xf, 11223 18, dp->vlnt[18] & 0xf, 11224 19, dp->vlnt[19] & 0xf, 11225 20, dp->vlnt[20] & 0xf, 11226 21, dp->vlnt[21] & 0xf, 11227 22, dp->vlnt[22] & 0xf, 11228 23, dp->vlnt[23] & 0xf, 11229 24, dp->vlnt[24] & 0xf, 11230 25, dp->vlnt[25] & 0xf, 11231 26, dp->vlnt[26] & 0xf, 11232 27, dp->vlnt[27] & 0xf, 11233 28, dp->vlnt[28] & 0xf, 11234 29, dp->vlnt[29] & 0xf, 11235 30, dp->vlnt[30] & 0xf, 11236 31, dp->vlnt[31] & 0xf)); 11237 } 11238 11239 static void nonzero_msg(struct hfi1_devdata *dd, int idx, const char *what, 11240 u16 limit) 11241 { 11242 if (limit != 0) 11243 dd_dev_info(dd, "Invalid %s limit %d on VL %d, ignoring\n", 11244 what, (int)limit, idx); 11245 } 11246 11247 /* change only the shared limit portion of SendCmGLobalCredit */ 11248 static void set_global_shared(struct hfi1_devdata *dd, u16 limit) 11249 { 11250 u64 reg; 11251 11252 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 11253 reg &= ~SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SMASK; 11254 reg |= (u64)limit << SEND_CM_GLOBAL_CREDIT_SHARED_LIMIT_SHIFT; 11255 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 11256 } 11257 11258 /* change only the total credit limit portion of SendCmGLobalCredit */ 11259 static void set_global_limit(struct hfi1_devdata *dd, u16 limit) 11260 { 11261 u64 reg; 11262 11263 reg = read_csr(dd, SEND_CM_GLOBAL_CREDIT); 11264 reg &= ~SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SMASK; 11265 reg |= (u64)limit << SEND_CM_GLOBAL_CREDIT_TOTAL_CREDIT_LIMIT_SHIFT; 11266 write_csr(dd, SEND_CM_GLOBAL_CREDIT, reg); 11267 } 11268 11269 /* set the given per-VL shared limit */ 11270 static void set_vl_shared(struct hfi1_devdata *dd, int vl, u16 limit) 11271 { 11272 u64 reg; 11273 u32 addr; 11274 11275 if (vl < TXE_NUM_DATA_VL) 11276 addr = SEND_CM_CREDIT_VL + (8 * vl); 11277 else 11278 addr = SEND_CM_CREDIT_VL15; 11279 11280 reg = read_csr(dd, addr); 11281 reg &= ~SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_SMASK; 11282 reg |= (u64)limit << SEND_CM_CREDIT_VL_SHARED_LIMIT_VL_SHIFT; 11283 write_csr(dd, addr, reg); 11284 } 11285 11286 /* set the given per-VL dedicated limit */ 11287 static void set_vl_dedicated(struct hfi1_devdata *dd, int vl, u16 limit) 11288 { 11289 u64 reg; 11290 u32 addr; 11291 11292 if (vl < TXE_NUM_DATA_VL) 11293 addr = SEND_CM_CREDIT_VL + (8 * vl); 11294 else 11295 addr = SEND_CM_CREDIT_VL15; 11296 11297 reg = read_csr(dd, addr); 11298 reg &= ~SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_SMASK; 11299 reg |= (u64)limit << SEND_CM_CREDIT_VL_DEDICATED_LIMIT_VL_SHIFT; 11300 write_csr(dd, addr, reg); 11301 } 11302 11303 /* spin until the given per-VL status mask bits clear */ 11304 static void wait_for_vl_status_clear(struct hfi1_devdata *dd, u64 mask, 11305 const char *which) 11306 { 11307 unsigned long timeout; 11308 u64 reg; 11309 11310 timeout = jiffies + msecs_to_jiffies(VL_STATUS_CLEAR_TIMEOUT); 11311 while (1) { 11312 reg = read_csr(dd, SEND_CM_CREDIT_USED_STATUS) & mask; 11313 11314 if (reg == 0) 11315 return; /* success */ 11316 if (time_after(jiffies, timeout)) 11317 break; /* timed out */ 11318 udelay(1); 11319 } 11320 11321 dd_dev_err(dd, 11322 "%s credit change status not clearing after %dms, mask 0x%llx, not clear 0x%llx\n", 11323 which, VL_STATUS_CLEAR_TIMEOUT, mask, reg); 11324 /* 11325 * If this occurs, it is likely there was a credit loss on the link. 11326 * The only recovery from that is a link bounce. 11327 */ 11328 dd_dev_err(dd, 11329 "Continuing anyway. A credit loss may occur. Suggest a link bounce\n"); 11330 } 11331 11332 /* 11333 * The number of credits on the VLs may be changed while everything 11334 * is "live", but the following algorithm must be followed due to 11335 * how the hardware is actually implemented. In particular, 11336 * Return_Credit_Status[] is the only correct status check. 11337 * 11338 * if (reducing Global_Shared_Credit_Limit or any shared limit changing) 11339 * set Global_Shared_Credit_Limit = 0 11340 * use_all_vl = 1 11341 * mask0 = all VLs that are changing either dedicated or shared limits 11342 * set Shared_Limit[mask0] = 0 11343 * spin until Return_Credit_Status[use_all_vl ? all VL : mask0] == 0 11344 * if (changing any dedicated limit) 11345 * mask1 = all VLs that are lowering dedicated limits 11346 * lower Dedicated_Limit[mask1] 11347 * spin until Return_Credit_Status[mask1] == 0 11348 * raise Dedicated_Limits 11349 * raise Shared_Limits 11350 * raise Global_Shared_Credit_Limit 11351 * 11352 * lower = if the new limit is lower, set the limit to the new value 11353 * raise = if the new limit is higher than the current value (may be changed 11354 * earlier in the algorithm), set the new limit to the new value 11355 */ 11356 int set_buffer_control(struct hfi1_pportdata *ppd, 11357 struct buffer_control *new_bc) 11358 { 11359 struct hfi1_devdata *dd = ppd->dd; 11360 u64 changing_mask, ld_mask, stat_mask; 11361 int change_count; 11362 int i, use_all_mask; 11363 int this_shared_changing; 11364 int vl_count = 0, ret; 11365 /* 11366 * A0: add the variable any_shared_limit_changing below and in the 11367 * algorithm above. If removing A0 support, it can be removed. 11368 */ 11369 int any_shared_limit_changing; 11370 struct buffer_control cur_bc; 11371 u8 changing[OPA_MAX_VLS]; 11372 u8 lowering_dedicated[OPA_MAX_VLS]; 11373 u16 cur_total; 11374 u32 new_total = 0; 11375 const u64 all_mask = 11376 SEND_CM_CREDIT_USED_STATUS_VL0_RETURN_CREDIT_STATUS_SMASK 11377 | SEND_CM_CREDIT_USED_STATUS_VL1_RETURN_CREDIT_STATUS_SMASK 11378 | SEND_CM_CREDIT_USED_STATUS_VL2_RETURN_CREDIT_STATUS_SMASK 11379 | SEND_CM_CREDIT_USED_STATUS_VL3_RETURN_CREDIT_STATUS_SMASK 11380 | SEND_CM_CREDIT_USED_STATUS_VL4_RETURN_CREDIT_STATUS_SMASK 11381 | SEND_CM_CREDIT_USED_STATUS_VL5_RETURN_CREDIT_STATUS_SMASK 11382 | SEND_CM_CREDIT_USED_STATUS_VL6_RETURN_CREDIT_STATUS_SMASK 11383 | SEND_CM_CREDIT_USED_STATUS_VL7_RETURN_CREDIT_STATUS_SMASK 11384 | SEND_CM_CREDIT_USED_STATUS_VL15_RETURN_CREDIT_STATUS_SMASK; 11385 11386 #define valid_vl(idx) ((idx) < TXE_NUM_DATA_VL || (idx) == 15) 11387 #define NUM_USABLE_VLS 16 /* look at VL15 and less */ 11388 11389 /* find the new total credits, do sanity check on unused VLs */ 11390 for (i = 0; i < OPA_MAX_VLS; i++) { 11391 if (valid_vl(i)) { 11392 new_total += be16_to_cpu(new_bc->vl[i].dedicated); 11393 continue; 11394 } 11395 nonzero_msg(dd, i, "dedicated", 11396 be16_to_cpu(new_bc->vl[i].dedicated)); 11397 nonzero_msg(dd, i, "shared", 11398 be16_to_cpu(new_bc->vl[i].shared)); 11399 new_bc->vl[i].dedicated = 0; 11400 new_bc->vl[i].shared = 0; 11401 } 11402 new_total += be16_to_cpu(new_bc->overall_shared_limit); 11403 11404 /* fetch the current values */ 11405 get_buffer_control(dd, &cur_bc, &cur_total); 11406 11407 /* 11408 * Create the masks we will use. 11409 */ 11410 memset(changing, 0, sizeof(changing)); 11411 memset(lowering_dedicated, 0, sizeof(lowering_dedicated)); 11412 /* 11413 * NOTE: Assumes that the individual VL bits are adjacent and in 11414 * increasing order 11415 */ 11416 stat_mask = 11417 SEND_CM_CREDIT_USED_STATUS_VL0_RETURN_CREDIT_STATUS_SMASK; 11418 changing_mask = 0; 11419 ld_mask = 0; 11420 change_count = 0; 11421 any_shared_limit_changing = 0; 11422 for (i = 0; i < NUM_USABLE_VLS; i++, stat_mask <<= 1) { 11423 if (!valid_vl(i)) 11424 continue; 11425 this_shared_changing = new_bc->vl[i].shared 11426 != cur_bc.vl[i].shared; 11427 if (this_shared_changing) 11428 any_shared_limit_changing = 1; 11429 if (new_bc->vl[i].dedicated != cur_bc.vl[i].dedicated || 11430 this_shared_changing) { 11431 changing[i] = 1; 11432 changing_mask |= stat_mask; 11433 change_count++; 11434 } 11435 if (be16_to_cpu(new_bc->vl[i].dedicated) < 11436 be16_to_cpu(cur_bc.vl[i].dedicated)) { 11437 lowering_dedicated[i] = 1; 11438 ld_mask |= stat_mask; 11439 } 11440 } 11441 11442 /* bracket the credit change with a total adjustment */ 11443 if (new_total > cur_total) 11444 set_global_limit(dd, new_total); 11445 11446 /* 11447 * Start the credit change algorithm. 11448 */ 11449 use_all_mask = 0; 11450 if ((be16_to_cpu(new_bc->overall_shared_limit) < 11451 be16_to_cpu(cur_bc.overall_shared_limit)) || 11452 (is_ax(dd) && any_shared_limit_changing)) { 11453 set_global_shared(dd, 0); 11454 cur_bc.overall_shared_limit = 0; 11455 use_all_mask = 1; 11456 } 11457 11458 for (i = 0; i < NUM_USABLE_VLS; i++) { 11459 if (!valid_vl(i)) 11460 continue; 11461 11462 if (changing[i]) { 11463 set_vl_shared(dd, i, 0); 11464 cur_bc.vl[i].shared = 0; 11465 } 11466 } 11467 11468 wait_for_vl_status_clear(dd, use_all_mask ? all_mask : changing_mask, 11469 "shared"); 11470 11471 if (change_count > 0) { 11472 for (i = 0; i < NUM_USABLE_VLS; i++) { 11473 if (!valid_vl(i)) 11474 continue; 11475 11476 if (lowering_dedicated[i]) { 11477 set_vl_dedicated(dd, i, 11478 be16_to_cpu(new_bc-> 11479 vl[i].dedicated)); 11480 cur_bc.vl[i].dedicated = 11481 new_bc->vl[i].dedicated; 11482 } 11483 } 11484 11485 wait_for_vl_status_clear(dd, ld_mask, "dedicated"); 11486 11487 /* now raise all dedicated that are going up */ 11488 for (i = 0; i < NUM_USABLE_VLS; i++) { 11489 if (!valid_vl(i)) 11490 continue; 11491 11492 if (be16_to_cpu(new_bc->vl[i].dedicated) > 11493 be16_to_cpu(cur_bc.vl[i].dedicated)) 11494 set_vl_dedicated(dd, i, 11495 be16_to_cpu(new_bc-> 11496 vl[i].dedicated)); 11497 } 11498 } 11499 11500 /* next raise all shared that are going up */ 11501 for (i = 0; i < NUM_USABLE_VLS; i++) { 11502 if (!valid_vl(i)) 11503 continue; 11504 11505 if (be16_to_cpu(new_bc->vl[i].shared) > 11506 be16_to_cpu(cur_bc.vl[i].shared)) 11507 set_vl_shared(dd, i, be16_to_cpu(new_bc->vl[i].shared)); 11508 } 11509 11510 /* finally raise the global shared */ 11511 if (be16_to_cpu(new_bc->overall_shared_limit) > 11512 be16_to_cpu(cur_bc.overall_shared_limit)) 11513 set_global_shared(dd, 11514 be16_to_cpu(new_bc->overall_shared_limit)); 11515 11516 /* bracket the credit change with a total adjustment */ 11517 if (new_total < cur_total) 11518 set_global_limit(dd, new_total); 11519 11520 /* 11521 * Determine the actual number of operational VLS using the number of 11522 * dedicated and shared credits for each VL. 11523 */ 11524 if (change_count > 0) { 11525 for (i = 0; i < TXE_NUM_DATA_VL; i++) 11526 if (be16_to_cpu(new_bc->vl[i].dedicated) > 0 || 11527 be16_to_cpu(new_bc->vl[i].shared) > 0) 11528 vl_count++; 11529 ppd->actual_vls_operational = vl_count; 11530 ret = sdma_map_init(dd, ppd->port - 1, vl_count ? 11531 ppd->actual_vls_operational : 11532 ppd->vls_operational, 11533 NULL); 11534 if (ret == 0) 11535 ret = pio_map_init(dd, ppd->port - 1, vl_count ? 11536 ppd->actual_vls_operational : 11537 ppd->vls_operational, NULL); 11538 if (ret) 11539 return ret; 11540 } 11541 return 0; 11542 } 11543 11544 /* 11545 * Read the given fabric manager table. Return the size of the 11546 * table (in bytes) on success, and a negative error code on 11547 * failure. 11548 */ 11549 int fm_get_table(struct hfi1_pportdata *ppd, int which, void *t) 11550 11551 { 11552 int size; 11553 struct vl_arb_cache *vlc; 11554 11555 switch (which) { 11556 case FM_TBL_VL_HIGH_ARB: 11557 size = 256; 11558 /* 11559 * OPA specifies 128 elements (of 2 bytes each), though 11560 * HFI supports only 16 elements in h/w. 11561 */ 11562 vlc = vl_arb_lock_cache(ppd, HI_PRIO_TABLE); 11563 vl_arb_get_cache(vlc, t); 11564 vl_arb_unlock_cache(ppd, HI_PRIO_TABLE); 11565 break; 11566 case FM_TBL_VL_LOW_ARB: 11567 size = 256; 11568 /* 11569 * OPA specifies 128 elements (of 2 bytes each), though 11570 * HFI supports only 16 elements in h/w. 11571 */ 11572 vlc = vl_arb_lock_cache(ppd, LO_PRIO_TABLE); 11573 vl_arb_get_cache(vlc, t); 11574 vl_arb_unlock_cache(ppd, LO_PRIO_TABLE); 11575 break; 11576 case FM_TBL_BUFFER_CONTROL: 11577 size = get_buffer_control(ppd->dd, t, NULL); 11578 break; 11579 case FM_TBL_SC2VLNT: 11580 size = get_sc2vlnt(ppd->dd, t); 11581 break; 11582 case FM_TBL_VL_PREEMPT_ELEMS: 11583 size = 256; 11584 /* OPA specifies 128 elements, of 2 bytes each */ 11585 get_vlarb_preempt(ppd->dd, OPA_MAX_VLS, t); 11586 break; 11587 case FM_TBL_VL_PREEMPT_MATRIX: 11588 size = 256; 11589 /* 11590 * OPA specifies that this is the same size as the VL 11591 * arbitration tables (i.e., 256 bytes). 11592 */ 11593 break; 11594 default: 11595 return -EINVAL; 11596 } 11597 return size; 11598 } 11599 11600 /* 11601 * Write the given fabric manager table. 11602 */ 11603 int fm_set_table(struct hfi1_pportdata *ppd, int which, void *t) 11604 { 11605 int ret = 0; 11606 struct vl_arb_cache *vlc; 11607 11608 switch (which) { 11609 case FM_TBL_VL_HIGH_ARB: 11610 vlc = vl_arb_lock_cache(ppd, HI_PRIO_TABLE); 11611 if (vl_arb_match_cache(vlc, t)) { 11612 vl_arb_unlock_cache(ppd, HI_PRIO_TABLE); 11613 break; 11614 } 11615 vl_arb_set_cache(vlc, t); 11616 vl_arb_unlock_cache(ppd, HI_PRIO_TABLE); 11617 ret = set_vl_weights(ppd, SEND_HIGH_PRIORITY_LIST, 11618 VL_ARB_HIGH_PRIO_TABLE_SIZE, t); 11619 break; 11620 case FM_TBL_VL_LOW_ARB: 11621 vlc = vl_arb_lock_cache(ppd, LO_PRIO_TABLE); 11622 if (vl_arb_match_cache(vlc, t)) { 11623 vl_arb_unlock_cache(ppd, LO_PRIO_TABLE); 11624 break; 11625 } 11626 vl_arb_set_cache(vlc, t); 11627 vl_arb_unlock_cache(ppd, LO_PRIO_TABLE); 11628 ret = set_vl_weights(ppd, SEND_LOW_PRIORITY_LIST, 11629 VL_ARB_LOW_PRIO_TABLE_SIZE, t); 11630 break; 11631 case FM_TBL_BUFFER_CONTROL: 11632 ret = set_buffer_control(ppd, t); 11633 break; 11634 case FM_TBL_SC2VLNT: 11635 set_sc2vlnt(ppd->dd, t); 11636 break; 11637 default: 11638 ret = -EINVAL; 11639 } 11640 return ret; 11641 } 11642 11643 /* 11644 * Disable all data VLs. 11645 * 11646 * Return 0 if disabled, non-zero if the VLs cannot be disabled. 11647 */ 11648 static int disable_data_vls(struct hfi1_devdata *dd) 11649 { 11650 if (is_ax(dd)) 11651 return 1; 11652 11653 pio_send_control(dd, PSC_DATA_VL_DISABLE); 11654 11655 return 0; 11656 } 11657 11658 /* 11659 * open_fill_data_vls() - the counterpart to stop_drain_data_vls(). 11660 * Just re-enables all data VLs (the "fill" part happens 11661 * automatically - the name was chosen for symmetry with 11662 * stop_drain_data_vls()). 11663 * 11664 * Return 0 if successful, non-zero if the VLs cannot be enabled. 11665 */ 11666 int open_fill_data_vls(struct hfi1_devdata *dd) 11667 { 11668 if (is_ax(dd)) 11669 return 1; 11670 11671 pio_send_control(dd, PSC_DATA_VL_ENABLE); 11672 11673 return 0; 11674 } 11675 11676 /* 11677 * drain_data_vls() - assumes that disable_data_vls() has been called, 11678 * wait for occupancy (of per-VL FIFOs) for all contexts, and SDMA 11679 * engines to drop to 0. 11680 */ 11681 static void drain_data_vls(struct hfi1_devdata *dd) 11682 { 11683 sc_wait(dd); 11684 sdma_wait(dd); 11685 pause_for_credit_return(dd); 11686 } 11687 11688 /* 11689 * stop_drain_data_vls() - disable, then drain all per-VL fifos. 11690 * 11691 * Use open_fill_data_vls() to resume using data VLs. This pair is 11692 * meant to be used like this: 11693 * 11694 * stop_drain_data_vls(dd); 11695 * // do things with per-VL resources 11696 * open_fill_data_vls(dd); 11697 */ 11698 int stop_drain_data_vls(struct hfi1_devdata *dd) 11699 { 11700 int ret; 11701 11702 ret = disable_data_vls(dd); 11703 if (ret == 0) 11704 drain_data_vls(dd); 11705 11706 return ret; 11707 } 11708 11709 /* 11710 * Convert a nanosecond time to a cclock count. No matter how slow 11711 * the cclock, a non-zero ns will always have a non-zero result. 11712 */ 11713 u32 ns_to_cclock(struct hfi1_devdata *dd, u32 ns) 11714 { 11715 u32 cclocks; 11716 11717 if (dd->icode == ICODE_FPGA_EMULATION) 11718 cclocks = (ns * 1000) / FPGA_CCLOCK_PS; 11719 else /* simulation pretends to be ASIC */ 11720 cclocks = (ns * 1000) / ASIC_CCLOCK_PS; 11721 if (ns && !cclocks) /* if ns nonzero, must be at least 1 */ 11722 cclocks = 1; 11723 return cclocks; 11724 } 11725 11726 /* 11727 * Convert a cclock count to nanoseconds. Not matter how slow 11728 * the cclock, a non-zero cclocks will always have a non-zero result. 11729 */ 11730 u32 cclock_to_ns(struct hfi1_devdata *dd, u32 cclocks) 11731 { 11732 u32 ns; 11733 11734 if (dd->icode == ICODE_FPGA_EMULATION) 11735 ns = (cclocks * FPGA_CCLOCK_PS) / 1000; 11736 else /* simulation pretends to be ASIC */ 11737 ns = (cclocks * ASIC_CCLOCK_PS) / 1000; 11738 if (cclocks && !ns) 11739 ns = 1; 11740 return ns; 11741 } 11742 11743 /* 11744 * Dynamically adjust the receive interrupt timeout for a context based on 11745 * incoming packet rate. 11746 * 11747 * NOTE: Dynamic adjustment does not allow rcv_intr_count to be zero. 11748 */ 11749 static void adjust_rcv_timeout(struct hfi1_ctxtdata *rcd, u32 npkts) 11750 { 11751 struct hfi1_devdata *dd = rcd->dd; 11752 u32 timeout = rcd->rcvavail_timeout; 11753 11754 /* 11755 * This algorithm doubles or halves the timeout depending on whether 11756 * the number of packets received in this interrupt were less than or 11757 * greater equal the interrupt count. 11758 * 11759 * The calculations below do not allow a steady state to be achieved. 11760 * Only at the endpoints it is possible to have an unchanging 11761 * timeout. 11762 */ 11763 if (npkts < rcv_intr_count) { 11764 /* 11765 * Not enough packets arrived before the timeout, adjust 11766 * timeout downward. 11767 */ 11768 if (timeout < 2) /* already at minimum? */ 11769 return; 11770 timeout >>= 1; 11771 } else { 11772 /* 11773 * More than enough packets arrived before the timeout, adjust 11774 * timeout upward. 11775 */ 11776 if (timeout >= dd->rcv_intr_timeout_csr) /* already at max? */ 11777 return; 11778 timeout = min(timeout << 1, dd->rcv_intr_timeout_csr); 11779 } 11780 11781 rcd->rcvavail_timeout = timeout; 11782 /* 11783 * timeout cannot be larger than rcv_intr_timeout_csr which has already 11784 * been verified to be in range 11785 */ 11786 write_kctxt_csr(dd, rcd->ctxt, RCV_AVAIL_TIME_OUT, 11787 (u64)timeout << 11788 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_SHIFT); 11789 } 11790 11791 void update_usrhead(struct hfi1_ctxtdata *rcd, u32 hd, u32 updegr, u32 egrhd, 11792 u32 intr_adjust, u32 npkts) 11793 { 11794 struct hfi1_devdata *dd = rcd->dd; 11795 u64 reg; 11796 u32 ctxt = rcd->ctxt; 11797 11798 /* 11799 * Need to write timeout register before updating RcvHdrHead to ensure 11800 * that a new value is used when the HW decides to restart counting. 11801 */ 11802 if (intr_adjust) 11803 adjust_rcv_timeout(rcd, npkts); 11804 if (updegr) { 11805 reg = (egrhd & RCV_EGR_INDEX_HEAD_HEAD_MASK) 11806 << RCV_EGR_INDEX_HEAD_HEAD_SHIFT; 11807 write_uctxt_csr(dd, ctxt, RCV_EGR_INDEX_HEAD, reg); 11808 } 11809 reg = ((u64)rcv_intr_count << RCV_HDR_HEAD_COUNTER_SHIFT) | 11810 (((u64)hd & RCV_HDR_HEAD_HEAD_MASK) 11811 << RCV_HDR_HEAD_HEAD_SHIFT); 11812 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, reg); 11813 } 11814 11815 u32 hdrqempty(struct hfi1_ctxtdata *rcd) 11816 { 11817 u32 head, tail; 11818 11819 head = (read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_HEAD) 11820 & RCV_HDR_HEAD_HEAD_SMASK) >> RCV_HDR_HEAD_HEAD_SHIFT; 11821 11822 if (rcd->rcvhdrtail_kvaddr) 11823 tail = get_rcvhdrtail(rcd); 11824 else 11825 tail = read_uctxt_csr(rcd->dd, rcd->ctxt, RCV_HDR_TAIL); 11826 11827 return head == tail; 11828 } 11829 11830 /* 11831 * Context Control and Receive Array encoding for buffer size: 11832 * 0x0 invalid 11833 * 0x1 4 KB 11834 * 0x2 8 KB 11835 * 0x3 16 KB 11836 * 0x4 32 KB 11837 * 0x5 64 KB 11838 * 0x6 128 KB 11839 * 0x7 256 KB 11840 * 0x8 512 KB (Receive Array only) 11841 * 0x9 1 MB (Receive Array only) 11842 * 0xa 2 MB (Receive Array only) 11843 * 11844 * 0xB-0xF - reserved (Receive Array only) 11845 * 11846 * 11847 * This routine assumes that the value has already been sanity checked. 11848 */ 11849 static u32 encoded_size(u32 size) 11850 { 11851 switch (size) { 11852 case 4 * 1024: return 0x1; 11853 case 8 * 1024: return 0x2; 11854 case 16 * 1024: return 0x3; 11855 case 32 * 1024: return 0x4; 11856 case 64 * 1024: return 0x5; 11857 case 128 * 1024: return 0x6; 11858 case 256 * 1024: return 0x7; 11859 case 512 * 1024: return 0x8; 11860 case 1 * 1024 * 1024: return 0x9; 11861 case 2 * 1024 * 1024: return 0xa; 11862 } 11863 return 0x1; /* if invalid, go with the minimum size */ 11864 } 11865 11866 void hfi1_rcvctrl(struct hfi1_devdata *dd, unsigned int op, 11867 struct hfi1_ctxtdata *rcd) 11868 { 11869 u64 rcvctrl, reg; 11870 int did_enable = 0; 11871 u16 ctxt; 11872 11873 if (!rcd) 11874 return; 11875 11876 ctxt = rcd->ctxt; 11877 11878 hfi1_cdbg(RCVCTRL, "ctxt %d op 0x%x", ctxt, op); 11879 11880 rcvctrl = read_kctxt_csr(dd, ctxt, RCV_CTXT_CTRL); 11881 /* if the context already enabled, don't do the extra steps */ 11882 if ((op & HFI1_RCVCTRL_CTXT_ENB) && 11883 !(rcvctrl & RCV_CTXT_CTRL_ENABLE_SMASK)) { 11884 /* reset the tail and hdr addresses, and sequence count */ 11885 write_kctxt_csr(dd, ctxt, RCV_HDR_ADDR, 11886 rcd->rcvhdrq_dma); 11887 if (rcd->rcvhdrtail_kvaddr) 11888 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 11889 rcd->rcvhdrqtailaddr_dma); 11890 rcd->seq_cnt = 1; 11891 11892 /* reset the cached receive header queue head value */ 11893 rcd->head = 0; 11894 11895 /* 11896 * Zero the receive header queue so we don't get false 11897 * positives when checking the sequence number. The 11898 * sequence numbers could land exactly on the same spot. 11899 * E.g. a rcd restart before the receive header wrapped. 11900 */ 11901 memset(rcd->rcvhdrq, 0, rcvhdrq_size(rcd)); 11902 11903 /* starting timeout */ 11904 rcd->rcvavail_timeout = dd->rcv_intr_timeout_csr; 11905 11906 /* enable the context */ 11907 rcvctrl |= RCV_CTXT_CTRL_ENABLE_SMASK; 11908 11909 /* clean the egr buffer size first */ 11910 rcvctrl &= ~RCV_CTXT_CTRL_EGR_BUF_SIZE_SMASK; 11911 rcvctrl |= ((u64)encoded_size(rcd->egrbufs.rcvtid_size) 11912 & RCV_CTXT_CTRL_EGR_BUF_SIZE_MASK) 11913 << RCV_CTXT_CTRL_EGR_BUF_SIZE_SHIFT; 11914 11915 /* zero RcvHdrHead - set RcvHdrHead.Counter after enable */ 11916 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, 0); 11917 did_enable = 1; 11918 11919 /* zero RcvEgrIndexHead */ 11920 write_uctxt_csr(dd, ctxt, RCV_EGR_INDEX_HEAD, 0); 11921 11922 /* set eager count and base index */ 11923 reg = (((u64)(rcd->egrbufs.alloced >> RCV_SHIFT) 11924 & RCV_EGR_CTRL_EGR_CNT_MASK) 11925 << RCV_EGR_CTRL_EGR_CNT_SHIFT) | 11926 (((rcd->eager_base >> RCV_SHIFT) 11927 & RCV_EGR_CTRL_EGR_BASE_INDEX_MASK) 11928 << RCV_EGR_CTRL_EGR_BASE_INDEX_SHIFT); 11929 write_kctxt_csr(dd, ctxt, RCV_EGR_CTRL, reg); 11930 11931 /* 11932 * Set TID (expected) count and base index. 11933 * rcd->expected_count is set to individual RcvArray entries, 11934 * not pairs, and the CSR takes a pair-count in groups of 11935 * four, so divide by 8. 11936 */ 11937 reg = (((rcd->expected_count >> RCV_SHIFT) 11938 & RCV_TID_CTRL_TID_PAIR_CNT_MASK) 11939 << RCV_TID_CTRL_TID_PAIR_CNT_SHIFT) | 11940 (((rcd->expected_base >> RCV_SHIFT) 11941 & RCV_TID_CTRL_TID_BASE_INDEX_MASK) 11942 << RCV_TID_CTRL_TID_BASE_INDEX_SHIFT); 11943 write_kctxt_csr(dd, ctxt, RCV_TID_CTRL, reg); 11944 if (ctxt == HFI1_CTRL_CTXT) 11945 write_csr(dd, RCV_VL15, HFI1_CTRL_CTXT); 11946 } 11947 if (op & HFI1_RCVCTRL_CTXT_DIS) { 11948 write_csr(dd, RCV_VL15, 0); 11949 /* 11950 * When receive context is being disabled turn on tail 11951 * update with a dummy tail address and then disable 11952 * receive context. 11953 */ 11954 if (dd->rcvhdrtail_dummy_dma) { 11955 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 11956 dd->rcvhdrtail_dummy_dma); 11957 /* Enabling RcvCtxtCtrl.TailUpd is intentional. */ 11958 rcvctrl |= RCV_CTXT_CTRL_TAIL_UPD_SMASK; 11959 } 11960 11961 rcvctrl &= ~RCV_CTXT_CTRL_ENABLE_SMASK; 11962 } 11963 if (op & HFI1_RCVCTRL_INTRAVAIL_ENB) { 11964 set_intr_bits(dd, IS_RCVAVAIL_START + rcd->ctxt, 11965 IS_RCVAVAIL_START + rcd->ctxt, true); 11966 rcvctrl |= RCV_CTXT_CTRL_INTR_AVAIL_SMASK; 11967 } 11968 if (op & HFI1_RCVCTRL_INTRAVAIL_DIS) { 11969 set_intr_bits(dd, IS_RCVAVAIL_START + rcd->ctxt, 11970 IS_RCVAVAIL_START + rcd->ctxt, false); 11971 rcvctrl &= ~RCV_CTXT_CTRL_INTR_AVAIL_SMASK; 11972 } 11973 if ((op & HFI1_RCVCTRL_TAILUPD_ENB) && rcd->rcvhdrtail_kvaddr) 11974 rcvctrl |= RCV_CTXT_CTRL_TAIL_UPD_SMASK; 11975 if (op & HFI1_RCVCTRL_TAILUPD_DIS) { 11976 /* See comment on RcvCtxtCtrl.TailUpd above */ 11977 if (!(op & HFI1_RCVCTRL_CTXT_DIS)) 11978 rcvctrl &= ~RCV_CTXT_CTRL_TAIL_UPD_SMASK; 11979 } 11980 if (op & HFI1_RCVCTRL_TIDFLOW_ENB) 11981 rcvctrl |= RCV_CTXT_CTRL_TID_FLOW_ENABLE_SMASK; 11982 if (op & HFI1_RCVCTRL_TIDFLOW_DIS) 11983 rcvctrl &= ~RCV_CTXT_CTRL_TID_FLOW_ENABLE_SMASK; 11984 if (op & HFI1_RCVCTRL_ONE_PKT_EGR_ENB) { 11985 /* 11986 * In one-packet-per-eager mode, the size comes from 11987 * the RcvArray entry. 11988 */ 11989 rcvctrl &= ~RCV_CTXT_CTRL_EGR_BUF_SIZE_SMASK; 11990 rcvctrl |= RCV_CTXT_CTRL_ONE_PACKET_PER_EGR_BUFFER_SMASK; 11991 } 11992 if (op & HFI1_RCVCTRL_ONE_PKT_EGR_DIS) 11993 rcvctrl &= ~RCV_CTXT_CTRL_ONE_PACKET_PER_EGR_BUFFER_SMASK; 11994 if (op & HFI1_RCVCTRL_NO_RHQ_DROP_ENB) 11995 rcvctrl |= RCV_CTXT_CTRL_DONT_DROP_RHQ_FULL_SMASK; 11996 if (op & HFI1_RCVCTRL_NO_RHQ_DROP_DIS) 11997 rcvctrl &= ~RCV_CTXT_CTRL_DONT_DROP_RHQ_FULL_SMASK; 11998 if (op & HFI1_RCVCTRL_NO_EGR_DROP_ENB) 11999 rcvctrl |= RCV_CTXT_CTRL_DONT_DROP_EGR_FULL_SMASK; 12000 if (op & HFI1_RCVCTRL_NO_EGR_DROP_DIS) 12001 rcvctrl &= ~RCV_CTXT_CTRL_DONT_DROP_EGR_FULL_SMASK; 12002 if (op & HFI1_RCVCTRL_URGENT_ENB) 12003 set_intr_bits(dd, IS_RCVURGENT_START + rcd->ctxt, 12004 IS_RCVURGENT_START + rcd->ctxt, true); 12005 if (op & HFI1_RCVCTRL_URGENT_DIS) 12006 set_intr_bits(dd, IS_RCVURGENT_START + rcd->ctxt, 12007 IS_RCVURGENT_START + rcd->ctxt, false); 12008 12009 hfi1_cdbg(RCVCTRL, "ctxt %d rcvctrl 0x%llx\n", ctxt, rcvctrl); 12010 write_kctxt_csr(dd, ctxt, RCV_CTXT_CTRL, rcvctrl); 12011 12012 /* work around sticky RcvCtxtStatus.BlockedRHQFull */ 12013 if (did_enable && 12014 (rcvctrl & RCV_CTXT_CTRL_DONT_DROP_RHQ_FULL_SMASK)) { 12015 reg = read_kctxt_csr(dd, ctxt, RCV_CTXT_STATUS); 12016 if (reg != 0) { 12017 dd_dev_info(dd, "ctxt %d status %lld (blocked)\n", 12018 ctxt, reg); 12019 read_uctxt_csr(dd, ctxt, RCV_HDR_HEAD); 12020 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, 0x10); 12021 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, 0x00); 12022 read_uctxt_csr(dd, ctxt, RCV_HDR_HEAD); 12023 reg = read_kctxt_csr(dd, ctxt, RCV_CTXT_STATUS); 12024 dd_dev_info(dd, "ctxt %d status %lld (%s blocked)\n", 12025 ctxt, reg, reg == 0 ? "not" : "still"); 12026 } 12027 } 12028 12029 if (did_enable) { 12030 /* 12031 * The interrupt timeout and count must be set after 12032 * the context is enabled to take effect. 12033 */ 12034 /* set interrupt timeout */ 12035 write_kctxt_csr(dd, ctxt, RCV_AVAIL_TIME_OUT, 12036 (u64)rcd->rcvavail_timeout << 12037 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_SHIFT); 12038 12039 /* set RcvHdrHead.Counter, zero RcvHdrHead.Head (again) */ 12040 reg = (u64)rcv_intr_count << RCV_HDR_HEAD_COUNTER_SHIFT; 12041 write_uctxt_csr(dd, ctxt, RCV_HDR_HEAD, reg); 12042 } 12043 12044 if (op & (HFI1_RCVCTRL_TAILUPD_DIS | HFI1_RCVCTRL_CTXT_DIS)) 12045 /* 12046 * If the context has been disabled and the Tail Update has 12047 * been cleared, set the RCV_HDR_TAIL_ADDR CSR to dummy address 12048 * so it doesn't contain an address that is invalid. 12049 */ 12050 write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 12051 dd->rcvhdrtail_dummy_dma); 12052 } 12053 12054 u32 hfi1_read_cntrs(struct hfi1_devdata *dd, char **namep, u64 **cntrp) 12055 { 12056 int ret; 12057 u64 val = 0; 12058 12059 if (namep) { 12060 ret = dd->cntrnameslen; 12061 *namep = dd->cntrnames; 12062 } else { 12063 const struct cntr_entry *entry; 12064 int i, j; 12065 12066 ret = (dd->ndevcntrs) * sizeof(u64); 12067 12068 /* Get the start of the block of counters */ 12069 *cntrp = dd->cntrs; 12070 12071 /* 12072 * Now go and fill in each counter in the block. 12073 */ 12074 for (i = 0; i < DEV_CNTR_LAST; i++) { 12075 entry = &dev_cntrs[i]; 12076 hfi1_cdbg(CNTR, "reading %s", entry->name); 12077 if (entry->flags & CNTR_DISABLED) { 12078 /* Nothing */ 12079 hfi1_cdbg(CNTR, "\tDisabled\n"); 12080 } else { 12081 if (entry->flags & CNTR_VL) { 12082 hfi1_cdbg(CNTR, "\tPer VL\n"); 12083 for (j = 0; j < C_VL_COUNT; j++) { 12084 val = entry->rw_cntr(entry, 12085 dd, j, 12086 CNTR_MODE_R, 12087 0); 12088 hfi1_cdbg( 12089 CNTR, 12090 "\t\tRead 0x%llx for %d\n", 12091 val, j); 12092 dd->cntrs[entry->offset + j] = 12093 val; 12094 } 12095 } else if (entry->flags & CNTR_SDMA) { 12096 hfi1_cdbg(CNTR, 12097 "\t Per SDMA Engine\n"); 12098 for (j = 0; j < chip_sdma_engines(dd); 12099 j++) { 12100 val = 12101 entry->rw_cntr(entry, dd, j, 12102 CNTR_MODE_R, 0); 12103 hfi1_cdbg(CNTR, 12104 "\t\tRead 0x%llx for %d\n", 12105 val, j); 12106 dd->cntrs[entry->offset + j] = 12107 val; 12108 } 12109 } else { 12110 val = entry->rw_cntr(entry, dd, 12111 CNTR_INVALID_VL, 12112 CNTR_MODE_R, 0); 12113 dd->cntrs[entry->offset] = val; 12114 hfi1_cdbg(CNTR, "\tRead 0x%llx", val); 12115 } 12116 } 12117 } 12118 } 12119 return ret; 12120 } 12121 12122 /* 12123 * Used by sysfs to create files for hfi stats to read 12124 */ 12125 u32 hfi1_read_portcntrs(struct hfi1_pportdata *ppd, char **namep, u64 **cntrp) 12126 { 12127 int ret; 12128 u64 val = 0; 12129 12130 if (namep) { 12131 ret = ppd->dd->portcntrnameslen; 12132 *namep = ppd->dd->portcntrnames; 12133 } else { 12134 const struct cntr_entry *entry; 12135 int i, j; 12136 12137 ret = ppd->dd->nportcntrs * sizeof(u64); 12138 *cntrp = ppd->cntrs; 12139 12140 for (i = 0; i < PORT_CNTR_LAST; i++) { 12141 entry = &port_cntrs[i]; 12142 hfi1_cdbg(CNTR, "reading %s", entry->name); 12143 if (entry->flags & CNTR_DISABLED) { 12144 /* Nothing */ 12145 hfi1_cdbg(CNTR, "\tDisabled\n"); 12146 continue; 12147 } 12148 12149 if (entry->flags & CNTR_VL) { 12150 hfi1_cdbg(CNTR, "\tPer VL"); 12151 for (j = 0; j < C_VL_COUNT; j++) { 12152 val = entry->rw_cntr(entry, ppd, j, 12153 CNTR_MODE_R, 12154 0); 12155 hfi1_cdbg( 12156 CNTR, 12157 "\t\tRead 0x%llx for %d", 12158 val, j); 12159 ppd->cntrs[entry->offset + j] = val; 12160 } 12161 } else { 12162 val = entry->rw_cntr(entry, ppd, 12163 CNTR_INVALID_VL, 12164 CNTR_MODE_R, 12165 0); 12166 ppd->cntrs[entry->offset] = val; 12167 hfi1_cdbg(CNTR, "\tRead 0x%llx", val); 12168 } 12169 } 12170 } 12171 return ret; 12172 } 12173 12174 static void free_cntrs(struct hfi1_devdata *dd) 12175 { 12176 struct hfi1_pportdata *ppd; 12177 int i; 12178 12179 if (dd->synth_stats_timer.function) 12180 del_timer_sync(&dd->synth_stats_timer); 12181 ppd = (struct hfi1_pportdata *)(dd + 1); 12182 for (i = 0; i < dd->num_pports; i++, ppd++) { 12183 kfree(ppd->cntrs); 12184 kfree(ppd->scntrs); 12185 free_percpu(ppd->ibport_data.rvp.rc_acks); 12186 free_percpu(ppd->ibport_data.rvp.rc_qacks); 12187 free_percpu(ppd->ibport_data.rvp.rc_delayed_comp); 12188 ppd->cntrs = NULL; 12189 ppd->scntrs = NULL; 12190 ppd->ibport_data.rvp.rc_acks = NULL; 12191 ppd->ibport_data.rvp.rc_qacks = NULL; 12192 ppd->ibport_data.rvp.rc_delayed_comp = NULL; 12193 } 12194 kfree(dd->portcntrnames); 12195 dd->portcntrnames = NULL; 12196 kfree(dd->cntrs); 12197 dd->cntrs = NULL; 12198 kfree(dd->scntrs); 12199 dd->scntrs = NULL; 12200 kfree(dd->cntrnames); 12201 dd->cntrnames = NULL; 12202 if (dd->update_cntr_wq) { 12203 destroy_workqueue(dd->update_cntr_wq); 12204 dd->update_cntr_wq = NULL; 12205 } 12206 } 12207 12208 static u64 read_dev_port_cntr(struct hfi1_devdata *dd, struct cntr_entry *entry, 12209 u64 *psval, void *context, int vl) 12210 { 12211 u64 val; 12212 u64 sval = *psval; 12213 12214 if (entry->flags & CNTR_DISABLED) { 12215 dd_dev_err(dd, "Counter %s not enabled", entry->name); 12216 return 0; 12217 } 12218 12219 hfi1_cdbg(CNTR, "cntr: %s vl %d psval 0x%llx", entry->name, vl, *psval); 12220 12221 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_R, 0); 12222 12223 /* If its a synthetic counter there is more work we need to do */ 12224 if (entry->flags & CNTR_SYNTH) { 12225 if (sval == CNTR_MAX) { 12226 /* No need to read already saturated */ 12227 return CNTR_MAX; 12228 } 12229 12230 if (entry->flags & CNTR_32BIT) { 12231 /* 32bit counters can wrap multiple times */ 12232 u64 upper = sval >> 32; 12233 u64 lower = (sval << 32) >> 32; 12234 12235 if (lower > val) { /* hw wrapped */ 12236 if (upper == CNTR_32BIT_MAX) 12237 val = CNTR_MAX; 12238 else 12239 upper++; 12240 } 12241 12242 if (val != CNTR_MAX) 12243 val = (upper << 32) | val; 12244 12245 } else { 12246 /* If we rolled we are saturated */ 12247 if ((val < sval) || (val > CNTR_MAX)) 12248 val = CNTR_MAX; 12249 } 12250 } 12251 12252 *psval = val; 12253 12254 hfi1_cdbg(CNTR, "\tNew val=0x%llx", val); 12255 12256 return val; 12257 } 12258 12259 static u64 write_dev_port_cntr(struct hfi1_devdata *dd, 12260 struct cntr_entry *entry, 12261 u64 *psval, void *context, int vl, u64 data) 12262 { 12263 u64 val; 12264 12265 if (entry->flags & CNTR_DISABLED) { 12266 dd_dev_err(dd, "Counter %s not enabled", entry->name); 12267 return 0; 12268 } 12269 12270 hfi1_cdbg(CNTR, "cntr: %s vl %d psval 0x%llx", entry->name, vl, *psval); 12271 12272 if (entry->flags & CNTR_SYNTH) { 12273 *psval = data; 12274 if (entry->flags & CNTR_32BIT) { 12275 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_W, 12276 (data << 32) >> 32); 12277 val = data; /* return the full 64bit value */ 12278 } else { 12279 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_W, 12280 data); 12281 } 12282 } else { 12283 val = entry->rw_cntr(entry, context, vl, CNTR_MODE_W, data); 12284 } 12285 12286 *psval = val; 12287 12288 hfi1_cdbg(CNTR, "\tNew val=0x%llx", val); 12289 12290 return val; 12291 } 12292 12293 u64 read_dev_cntr(struct hfi1_devdata *dd, int index, int vl) 12294 { 12295 struct cntr_entry *entry; 12296 u64 *sval; 12297 12298 entry = &dev_cntrs[index]; 12299 sval = dd->scntrs + entry->offset; 12300 12301 if (vl != CNTR_INVALID_VL) 12302 sval += vl; 12303 12304 return read_dev_port_cntr(dd, entry, sval, dd, vl); 12305 } 12306 12307 u64 write_dev_cntr(struct hfi1_devdata *dd, int index, int vl, u64 data) 12308 { 12309 struct cntr_entry *entry; 12310 u64 *sval; 12311 12312 entry = &dev_cntrs[index]; 12313 sval = dd->scntrs + entry->offset; 12314 12315 if (vl != CNTR_INVALID_VL) 12316 sval += vl; 12317 12318 return write_dev_port_cntr(dd, entry, sval, dd, vl, data); 12319 } 12320 12321 u64 read_port_cntr(struct hfi1_pportdata *ppd, int index, int vl) 12322 { 12323 struct cntr_entry *entry; 12324 u64 *sval; 12325 12326 entry = &port_cntrs[index]; 12327 sval = ppd->scntrs + entry->offset; 12328 12329 if (vl != CNTR_INVALID_VL) 12330 sval += vl; 12331 12332 if ((index >= C_RCV_HDR_OVF_FIRST + ppd->dd->num_rcv_contexts) && 12333 (index <= C_RCV_HDR_OVF_LAST)) { 12334 /* We do not want to bother for disabled contexts */ 12335 return 0; 12336 } 12337 12338 return read_dev_port_cntr(ppd->dd, entry, sval, ppd, vl); 12339 } 12340 12341 u64 write_port_cntr(struct hfi1_pportdata *ppd, int index, int vl, u64 data) 12342 { 12343 struct cntr_entry *entry; 12344 u64 *sval; 12345 12346 entry = &port_cntrs[index]; 12347 sval = ppd->scntrs + entry->offset; 12348 12349 if (vl != CNTR_INVALID_VL) 12350 sval += vl; 12351 12352 if ((index >= C_RCV_HDR_OVF_FIRST + ppd->dd->num_rcv_contexts) && 12353 (index <= C_RCV_HDR_OVF_LAST)) { 12354 /* We do not want to bother for disabled contexts */ 12355 return 0; 12356 } 12357 12358 return write_dev_port_cntr(ppd->dd, entry, sval, ppd, vl, data); 12359 } 12360 12361 static void do_update_synth_timer(struct work_struct *work) 12362 { 12363 u64 cur_tx; 12364 u64 cur_rx; 12365 u64 total_flits; 12366 u8 update = 0; 12367 int i, j, vl; 12368 struct hfi1_pportdata *ppd; 12369 struct cntr_entry *entry; 12370 struct hfi1_devdata *dd = container_of(work, struct hfi1_devdata, 12371 update_cntr_work); 12372 12373 /* 12374 * Rather than keep beating on the CSRs pick a minimal set that we can 12375 * check to watch for potential roll over. We can do this by looking at 12376 * the number of flits sent/recv. If the total flits exceeds 32bits then 12377 * we have to iterate all the counters and update. 12378 */ 12379 entry = &dev_cntrs[C_DC_RCV_FLITS]; 12380 cur_rx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, CNTR_MODE_R, 0); 12381 12382 entry = &dev_cntrs[C_DC_XMIT_FLITS]; 12383 cur_tx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, CNTR_MODE_R, 0); 12384 12385 hfi1_cdbg( 12386 CNTR, 12387 "[%d] curr tx=0x%llx rx=0x%llx :: last tx=0x%llx rx=0x%llx\n", 12388 dd->unit, cur_tx, cur_rx, dd->last_tx, dd->last_rx); 12389 12390 if ((cur_tx < dd->last_tx) || (cur_rx < dd->last_rx)) { 12391 /* 12392 * May not be strictly necessary to update but it won't hurt and 12393 * simplifies the logic here. 12394 */ 12395 update = 1; 12396 hfi1_cdbg(CNTR, "[%d] Tripwire counter rolled, updating", 12397 dd->unit); 12398 } else { 12399 total_flits = (cur_tx - dd->last_tx) + (cur_rx - dd->last_rx); 12400 hfi1_cdbg(CNTR, 12401 "[%d] total flits 0x%llx limit 0x%llx\n", dd->unit, 12402 total_flits, (u64)CNTR_32BIT_MAX); 12403 if (total_flits >= CNTR_32BIT_MAX) { 12404 hfi1_cdbg(CNTR, "[%d] 32bit limit hit, updating", 12405 dd->unit); 12406 update = 1; 12407 } 12408 } 12409 12410 if (update) { 12411 hfi1_cdbg(CNTR, "[%d] Updating dd and ppd counters", dd->unit); 12412 for (i = 0; i < DEV_CNTR_LAST; i++) { 12413 entry = &dev_cntrs[i]; 12414 if (entry->flags & CNTR_VL) { 12415 for (vl = 0; vl < C_VL_COUNT; vl++) 12416 read_dev_cntr(dd, i, vl); 12417 } else { 12418 read_dev_cntr(dd, i, CNTR_INVALID_VL); 12419 } 12420 } 12421 ppd = (struct hfi1_pportdata *)(dd + 1); 12422 for (i = 0; i < dd->num_pports; i++, ppd++) { 12423 for (j = 0; j < PORT_CNTR_LAST; j++) { 12424 entry = &port_cntrs[j]; 12425 if (entry->flags & CNTR_VL) { 12426 for (vl = 0; vl < C_VL_COUNT; vl++) 12427 read_port_cntr(ppd, j, vl); 12428 } else { 12429 read_port_cntr(ppd, j, CNTR_INVALID_VL); 12430 } 12431 } 12432 } 12433 12434 /* 12435 * We want the value in the register. The goal is to keep track 12436 * of the number of "ticks" not the counter value. In other 12437 * words if the register rolls we want to notice it and go ahead 12438 * and force an update. 12439 */ 12440 entry = &dev_cntrs[C_DC_XMIT_FLITS]; 12441 dd->last_tx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, 12442 CNTR_MODE_R, 0); 12443 12444 entry = &dev_cntrs[C_DC_RCV_FLITS]; 12445 dd->last_rx = entry->rw_cntr(entry, dd, CNTR_INVALID_VL, 12446 CNTR_MODE_R, 0); 12447 12448 hfi1_cdbg(CNTR, "[%d] setting last tx/rx to 0x%llx 0x%llx", 12449 dd->unit, dd->last_tx, dd->last_rx); 12450 12451 } else { 12452 hfi1_cdbg(CNTR, "[%d] No update necessary", dd->unit); 12453 } 12454 } 12455 12456 static void update_synth_timer(struct timer_list *t) 12457 { 12458 struct hfi1_devdata *dd = from_timer(dd, t, synth_stats_timer); 12459 12460 queue_work(dd->update_cntr_wq, &dd->update_cntr_work); 12461 mod_timer(&dd->synth_stats_timer, jiffies + HZ * SYNTH_CNT_TIME); 12462 } 12463 12464 #define C_MAX_NAME 16 /* 15 chars + one for /0 */ 12465 static int init_cntrs(struct hfi1_devdata *dd) 12466 { 12467 int i, rcv_ctxts, j; 12468 size_t sz; 12469 char *p; 12470 char name[C_MAX_NAME]; 12471 struct hfi1_pportdata *ppd; 12472 const char *bit_type_32 = ",32"; 12473 const int bit_type_32_sz = strlen(bit_type_32); 12474 u32 sdma_engines = chip_sdma_engines(dd); 12475 12476 /* set up the stats timer; the add_timer is done at the end */ 12477 timer_setup(&dd->synth_stats_timer, update_synth_timer, 0); 12478 12479 /***********************/ 12480 /* per device counters */ 12481 /***********************/ 12482 12483 /* size names and determine how many we have*/ 12484 dd->ndevcntrs = 0; 12485 sz = 0; 12486 12487 for (i = 0; i < DEV_CNTR_LAST; i++) { 12488 if (dev_cntrs[i].flags & CNTR_DISABLED) { 12489 hfi1_dbg_early("\tSkipping %s\n", dev_cntrs[i].name); 12490 continue; 12491 } 12492 12493 if (dev_cntrs[i].flags & CNTR_VL) { 12494 dev_cntrs[i].offset = dd->ndevcntrs; 12495 for (j = 0; j < C_VL_COUNT; j++) { 12496 snprintf(name, C_MAX_NAME, "%s%d", 12497 dev_cntrs[i].name, vl_from_idx(j)); 12498 sz += strlen(name); 12499 /* Add ",32" for 32-bit counters */ 12500 if (dev_cntrs[i].flags & CNTR_32BIT) 12501 sz += bit_type_32_sz; 12502 sz++; 12503 dd->ndevcntrs++; 12504 } 12505 } else if (dev_cntrs[i].flags & CNTR_SDMA) { 12506 dev_cntrs[i].offset = dd->ndevcntrs; 12507 for (j = 0; j < sdma_engines; j++) { 12508 snprintf(name, C_MAX_NAME, "%s%d", 12509 dev_cntrs[i].name, j); 12510 sz += strlen(name); 12511 /* Add ",32" for 32-bit counters */ 12512 if (dev_cntrs[i].flags & CNTR_32BIT) 12513 sz += bit_type_32_sz; 12514 sz++; 12515 dd->ndevcntrs++; 12516 } 12517 } else { 12518 /* +1 for newline. */ 12519 sz += strlen(dev_cntrs[i].name) + 1; 12520 /* Add ",32" for 32-bit counters */ 12521 if (dev_cntrs[i].flags & CNTR_32BIT) 12522 sz += bit_type_32_sz; 12523 dev_cntrs[i].offset = dd->ndevcntrs; 12524 dd->ndevcntrs++; 12525 } 12526 } 12527 12528 /* allocate space for the counter values */ 12529 dd->cntrs = kcalloc(dd->ndevcntrs + num_driver_cntrs, sizeof(u64), 12530 GFP_KERNEL); 12531 if (!dd->cntrs) 12532 goto bail; 12533 12534 dd->scntrs = kcalloc(dd->ndevcntrs, sizeof(u64), GFP_KERNEL); 12535 if (!dd->scntrs) 12536 goto bail; 12537 12538 /* allocate space for the counter names */ 12539 dd->cntrnameslen = sz; 12540 dd->cntrnames = kmalloc(sz, GFP_KERNEL); 12541 if (!dd->cntrnames) 12542 goto bail; 12543 12544 /* fill in the names */ 12545 for (p = dd->cntrnames, i = 0; i < DEV_CNTR_LAST; i++) { 12546 if (dev_cntrs[i].flags & CNTR_DISABLED) { 12547 /* Nothing */ 12548 } else if (dev_cntrs[i].flags & CNTR_VL) { 12549 for (j = 0; j < C_VL_COUNT; j++) { 12550 snprintf(name, C_MAX_NAME, "%s%d", 12551 dev_cntrs[i].name, 12552 vl_from_idx(j)); 12553 memcpy(p, name, strlen(name)); 12554 p += strlen(name); 12555 12556 /* Counter is 32 bits */ 12557 if (dev_cntrs[i].flags & CNTR_32BIT) { 12558 memcpy(p, bit_type_32, bit_type_32_sz); 12559 p += bit_type_32_sz; 12560 } 12561 12562 *p++ = '\n'; 12563 } 12564 } else if (dev_cntrs[i].flags & CNTR_SDMA) { 12565 for (j = 0; j < sdma_engines; j++) { 12566 snprintf(name, C_MAX_NAME, "%s%d", 12567 dev_cntrs[i].name, j); 12568 memcpy(p, name, strlen(name)); 12569 p += strlen(name); 12570 12571 /* Counter is 32 bits */ 12572 if (dev_cntrs[i].flags & CNTR_32BIT) { 12573 memcpy(p, bit_type_32, bit_type_32_sz); 12574 p += bit_type_32_sz; 12575 } 12576 12577 *p++ = '\n'; 12578 } 12579 } else { 12580 memcpy(p, dev_cntrs[i].name, strlen(dev_cntrs[i].name)); 12581 p += strlen(dev_cntrs[i].name); 12582 12583 /* Counter is 32 bits */ 12584 if (dev_cntrs[i].flags & CNTR_32BIT) { 12585 memcpy(p, bit_type_32, bit_type_32_sz); 12586 p += bit_type_32_sz; 12587 } 12588 12589 *p++ = '\n'; 12590 } 12591 } 12592 12593 /*********************/ 12594 /* per port counters */ 12595 /*********************/ 12596 12597 /* 12598 * Go through the counters for the overflows and disable the ones we 12599 * don't need. This varies based on platform so we need to do it 12600 * dynamically here. 12601 */ 12602 rcv_ctxts = dd->num_rcv_contexts; 12603 for (i = C_RCV_HDR_OVF_FIRST + rcv_ctxts; 12604 i <= C_RCV_HDR_OVF_LAST; i++) { 12605 port_cntrs[i].flags |= CNTR_DISABLED; 12606 } 12607 12608 /* size port counter names and determine how many we have*/ 12609 sz = 0; 12610 dd->nportcntrs = 0; 12611 for (i = 0; i < PORT_CNTR_LAST; i++) { 12612 if (port_cntrs[i].flags & CNTR_DISABLED) { 12613 hfi1_dbg_early("\tSkipping %s\n", port_cntrs[i].name); 12614 continue; 12615 } 12616 12617 if (port_cntrs[i].flags & CNTR_VL) { 12618 port_cntrs[i].offset = dd->nportcntrs; 12619 for (j = 0; j < C_VL_COUNT; j++) { 12620 snprintf(name, C_MAX_NAME, "%s%d", 12621 port_cntrs[i].name, vl_from_idx(j)); 12622 sz += strlen(name); 12623 /* Add ",32" for 32-bit counters */ 12624 if (port_cntrs[i].flags & CNTR_32BIT) 12625 sz += bit_type_32_sz; 12626 sz++; 12627 dd->nportcntrs++; 12628 } 12629 } else { 12630 /* +1 for newline */ 12631 sz += strlen(port_cntrs[i].name) + 1; 12632 /* Add ",32" for 32-bit counters */ 12633 if (port_cntrs[i].flags & CNTR_32BIT) 12634 sz += bit_type_32_sz; 12635 port_cntrs[i].offset = dd->nportcntrs; 12636 dd->nportcntrs++; 12637 } 12638 } 12639 12640 /* allocate space for the counter names */ 12641 dd->portcntrnameslen = sz; 12642 dd->portcntrnames = kmalloc(sz, GFP_KERNEL); 12643 if (!dd->portcntrnames) 12644 goto bail; 12645 12646 /* fill in port cntr names */ 12647 for (p = dd->portcntrnames, i = 0; i < PORT_CNTR_LAST; i++) { 12648 if (port_cntrs[i].flags & CNTR_DISABLED) 12649 continue; 12650 12651 if (port_cntrs[i].flags & CNTR_VL) { 12652 for (j = 0; j < C_VL_COUNT; j++) { 12653 snprintf(name, C_MAX_NAME, "%s%d", 12654 port_cntrs[i].name, vl_from_idx(j)); 12655 memcpy(p, name, strlen(name)); 12656 p += strlen(name); 12657 12658 /* Counter is 32 bits */ 12659 if (port_cntrs[i].flags & CNTR_32BIT) { 12660 memcpy(p, bit_type_32, bit_type_32_sz); 12661 p += bit_type_32_sz; 12662 } 12663 12664 *p++ = '\n'; 12665 } 12666 } else { 12667 memcpy(p, port_cntrs[i].name, 12668 strlen(port_cntrs[i].name)); 12669 p += strlen(port_cntrs[i].name); 12670 12671 /* Counter is 32 bits */ 12672 if (port_cntrs[i].flags & CNTR_32BIT) { 12673 memcpy(p, bit_type_32, bit_type_32_sz); 12674 p += bit_type_32_sz; 12675 } 12676 12677 *p++ = '\n'; 12678 } 12679 } 12680 12681 /* allocate per port storage for counter values */ 12682 ppd = (struct hfi1_pportdata *)(dd + 1); 12683 for (i = 0; i < dd->num_pports; i++, ppd++) { 12684 ppd->cntrs = kcalloc(dd->nportcntrs, sizeof(u64), GFP_KERNEL); 12685 if (!ppd->cntrs) 12686 goto bail; 12687 12688 ppd->scntrs = kcalloc(dd->nportcntrs, sizeof(u64), GFP_KERNEL); 12689 if (!ppd->scntrs) 12690 goto bail; 12691 } 12692 12693 /* CPU counters need to be allocated and zeroed */ 12694 if (init_cpu_counters(dd)) 12695 goto bail; 12696 12697 dd->update_cntr_wq = alloc_ordered_workqueue("hfi1_update_cntr_%d", 12698 WQ_MEM_RECLAIM, dd->unit); 12699 if (!dd->update_cntr_wq) 12700 goto bail; 12701 12702 INIT_WORK(&dd->update_cntr_work, do_update_synth_timer); 12703 12704 mod_timer(&dd->synth_stats_timer, jiffies + HZ * SYNTH_CNT_TIME); 12705 return 0; 12706 bail: 12707 free_cntrs(dd); 12708 return -ENOMEM; 12709 } 12710 12711 static u32 chip_to_opa_lstate(struct hfi1_devdata *dd, u32 chip_lstate) 12712 { 12713 switch (chip_lstate) { 12714 default: 12715 dd_dev_err(dd, 12716 "Unknown logical state 0x%x, reporting IB_PORT_DOWN\n", 12717 chip_lstate); 12718 /* fall through */ 12719 case LSTATE_DOWN: 12720 return IB_PORT_DOWN; 12721 case LSTATE_INIT: 12722 return IB_PORT_INIT; 12723 case LSTATE_ARMED: 12724 return IB_PORT_ARMED; 12725 case LSTATE_ACTIVE: 12726 return IB_PORT_ACTIVE; 12727 } 12728 } 12729 12730 u32 chip_to_opa_pstate(struct hfi1_devdata *dd, u32 chip_pstate) 12731 { 12732 /* look at the HFI meta-states only */ 12733 switch (chip_pstate & 0xf0) { 12734 default: 12735 dd_dev_err(dd, "Unexpected chip physical state of 0x%x\n", 12736 chip_pstate); 12737 /* fall through */ 12738 case PLS_DISABLED: 12739 return IB_PORTPHYSSTATE_DISABLED; 12740 case PLS_OFFLINE: 12741 return OPA_PORTPHYSSTATE_OFFLINE; 12742 case PLS_POLLING: 12743 return IB_PORTPHYSSTATE_POLLING; 12744 case PLS_CONFIGPHY: 12745 return IB_PORTPHYSSTATE_TRAINING; 12746 case PLS_LINKUP: 12747 return IB_PORTPHYSSTATE_LINKUP; 12748 case PLS_PHYTEST: 12749 return IB_PORTPHYSSTATE_PHY_TEST; 12750 } 12751 } 12752 12753 /* return the OPA port logical state name */ 12754 const char *opa_lstate_name(u32 lstate) 12755 { 12756 static const char * const port_logical_names[] = { 12757 "PORT_NOP", 12758 "PORT_DOWN", 12759 "PORT_INIT", 12760 "PORT_ARMED", 12761 "PORT_ACTIVE", 12762 "PORT_ACTIVE_DEFER", 12763 }; 12764 if (lstate < ARRAY_SIZE(port_logical_names)) 12765 return port_logical_names[lstate]; 12766 return "unknown"; 12767 } 12768 12769 /* return the OPA port physical state name */ 12770 const char *opa_pstate_name(u32 pstate) 12771 { 12772 static const char * const port_physical_names[] = { 12773 "PHYS_NOP", 12774 "reserved1", 12775 "PHYS_POLL", 12776 "PHYS_DISABLED", 12777 "PHYS_TRAINING", 12778 "PHYS_LINKUP", 12779 "PHYS_LINK_ERR_RECOVER", 12780 "PHYS_PHY_TEST", 12781 "reserved8", 12782 "PHYS_OFFLINE", 12783 "PHYS_GANGED", 12784 "PHYS_TEST", 12785 }; 12786 if (pstate < ARRAY_SIZE(port_physical_names)) 12787 return port_physical_names[pstate]; 12788 return "unknown"; 12789 } 12790 12791 /** 12792 * update_statusp - Update userspace status flag 12793 * @ppd: Port data structure 12794 * @state: port state information 12795 * 12796 * Actual port status is determined by the host_link_state value 12797 * in the ppd. 12798 * 12799 * host_link_state MUST be updated before updating the user space 12800 * statusp. 12801 */ 12802 static void update_statusp(struct hfi1_pportdata *ppd, u32 state) 12803 { 12804 /* 12805 * Set port status flags in the page mapped into userspace 12806 * memory. Do it here to ensure a reliable state - this is 12807 * the only function called by all state handling code. 12808 * Always set the flags due to the fact that the cache value 12809 * might have been changed explicitly outside of this 12810 * function. 12811 */ 12812 if (ppd->statusp) { 12813 switch (state) { 12814 case IB_PORT_DOWN: 12815 case IB_PORT_INIT: 12816 *ppd->statusp &= ~(HFI1_STATUS_IB_CONF | 12817 HFI1_STATUS_IB_READY); 12818 break; 12819 case IB_PORT_ARMED: 12820 *ppd->statusp |= HFI1_STATUS_IB_CONF; 12821 break; 12822 case IB_PORT_ACTIVE: 12823 *ppd->statusp |= HFI1_STATUS_IB_READY; 12824 break; 12825 } 12826 } 12827 dd_dev_info(ppd->dd, "logical state changed to %s (0x%x)\n", 12828 opa_lstate_name(state), state); 12829 } 12830 12831 /** 12832 * wait_logical_linkstate - wait for an IB link state change to occur 12833 * @ppd: port device 12834 * @state: the state to wait for 12835 * @msecs: the number of milliseconds to wait 12836 * 12837 * Wait up to msecs milliseconds for IB link state change to occur. 12838 * For now, take the easy polling route. 12839 * Returns 0 if state reached, otherwise -ETIMEDOUT. 12840 */ 12841 static int wait_logical_linkstate(struct hfi1_pportdata *ppd, u32 state, 12842 int msecs) 12843 { 12844 unsigned long timeout; 12845 u32 new_state; 12846 12847 timeout = jiffies + msecs_to_jiffies(msecs); 12848 while (1) { 12849 new_state = chip_to_opa_lstate(ppd->dd, 12850 read_logical_state(ppd->dd)); 12851 if (new_state == state) 12852 break; 12853 if (time_after(jiffies, timeout)) { 12854 dd_dev_err(ppd->dd, 12855 "timeout waiting for link state 0x%x\n", 12856 state); 12857 return -ETIMEDOUT; 12858 } 12859 msleep(20); 12860 } 12861 12862 return 0; 12863 } 12864 12865 static void log_state_transition(struct hfi1_pportdata *ppd, u32 state) 12866 { 12867 u32 ib_pstate = chip_to_opa_pstate(ppd->dd, state); 12868 12869 dd_dev_info(ppd->dd, 12870 "physical state changed to %s (0x%x), phy 0x%x\n", 12871 opa_pstate_name(ib_pstate), ib_pstate, state); 12872 } 12873 12874 /* 12875 * Read the physical hardware link state and check if it matches host 12876 * drivers anticipated state. 12877 */ 12878 static void log_physical_state(struct hfi1_pportdata *ppd, u32 state) 12879 { 12880 u32 read_state = read_physical_state(ppd->dd); 12881 12882 if (read_state == state) { 12883 log_state_transition(ppd, state); 12884 } else { 12885 dd_dev_err(ppd->dd, 12886 "anticipated phy link state 0x%x, read 0x%x\n", 12887 state, read_state); 12888 } 12889 } 12890 12891 /* 12892 * wait_physical_linkstate - wait for an physical link state change to occur 12893 * @ppd: port device 12894 * @state: the state to wait for 12895 * @msecs: the number of milliseconds to wait 12896 * 12897 * Wait up to msecs milliseconds for physical link state change to occur. 12898 * Returns 0 if state reached, otherwise -ETIMEDOUT. 12899 */ 12900 static int wait_physical_linkstate(struct hfi1_pportdata *ppd, u32 state, 12901 int msecs) 12902 { 12903 u32 read_state; 12904 unsigned long timeout; 12905 12906 timeout = jiffies + msecs_to_jiffies(msecs); 12907 while (1) { 12908 read_state = read_physical_state(ppd->dd); 12909 if (read_state == state) 12910 break; 12911 if (time_after(jiffies, timeout)) { 12912 dd_dev_err(ppd->dd, 12913 "timeout waiting for phy link state 0x%x\n", 12914 state); 12915 return -ETIMEDOUT; 12916 } 12917 usleep_range(1950, 2050); /* sleep 2ms-ish */ 12918 } 12919 12920 log_state_transition(ppd, state); 12921 return 0; 12922 } 12923 12924 /* 12925 * wait_phys_link_offline_quiet_substates - wait for any offline substate 12926 * @ppd: port device 12927 * @msecs: the number of milliseconds to wait 12928 * 12929 * Wait up to msecs milliseconds for any offline physical link 12930 * state change to occur. 12931 * Returns 0 if at least one state is reached, otherwise -ETIMEDOUT. 12932 */ 12933 static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd, 12934 int msecs) 12935 { 12936 u32 read_state; 12937 unsigned long timeout; 12938 12939 timeout = jiffies + msecs_to_jiffies(msecs); 12940 while (1) { 12941 read_state = read_physical_state(ppd->dd); 12942 if ((read_state & 0xF0) == PLS_OFFLINE) 12943 break; 12944 if (time_after(jiffies, timeout)) { 12945 dd_dev_err(ppd->dd, 12946 "timeout waiting for phy link offline.quiet substates. Read state 0x%x, %dms\n", 12947 read_state, msecs); 12948 return -ETIMEDOUT; 12949 } 12950 usleep_range(1950, 2050); /* sleep 2ms-ish */ 12951 } 12952 12953 log_state_transition(ppd, read_state); 12954 return read_state; 12955 } 12956 12957 /* 12958 * wait_phys_link_out_of_offline - wait for any out of offline state 12959 * @ppd: port device 12960 * @msecs: the number of milliseconds to wait 12961 * 12962 * Wait up to msecs milliseconds for any out of offline physical link 12963 * state change to occur. 12964 * Returns 0 if at least one state is reached, otherwise -ETIMEDOUT. 12965 */ 12966 static int wait_phys_link_out_of_offline(struct hfi1_pportdata *ppd, 12967 int msecs) 12968 { 12969 u32 read_state; 12970 unsigned long timeout; 12971 12972 timeout = jiffies + msecs_to_jiffies(msecs); 12973 while (1) { 12974 read_state = read_physical_state(ppd->dd); 12975 if ((read_state & 0xF0) != PLS_OFFLINE) 12976 break; 12977 if (time_after(jiffies, timeout)) { 12978 dd_dev_err(ppd->dd, 12979 "timeout waiting for phy link out of offline. Read state 0x%x, %dms\n", 12980 read_state, msecs); 12981 return -ETIMEDOUT; 12982 } 12983 usleep_range(1950, 2050); /* sleep 2ms-ish */ 12984 } 12985 12986 log_state_transition(ppd, read_state); 12987 return read_state; 12988 } 12989 12990 #define CLEAR_STATIC_RATE_CONTROL_SMASK(r) \ 12991 (r &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK) 12992 12993 #define SET_STATIC_RATE_CONTROL_SMASK(r) \ 12994 (r |= SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK) 12995 12996 void hfi1_init_ctxt(struct send_context *sc) 12997 { 12998 if (sc) { 12999 struct hfi1_devdata *dd = sc->dd; 13000 u64 reg; 13001 u8 set = (sc->type == SC_USER ? 13002 HFI1_CAP_IS_USET(STATIC_RATE_CTRL) : 13003 HFI1_CAP_IS_KSET(STATIC_RATE_CTRL)); 13004 reg = read_kctxt_csr(dd, sc->hw_context, 13005 SEND_CTXT_CHECK_ENABLE); 13006 if (set) 13007 CLEAR_STATIC_RATE_CONTROL_SMASK(reg); 13008 else 13009 SET_STATIC_RATE_CONTROL_SMASK(reg); 13010 write_kctxt_csr(dd, sc->hw_context, 13011 SEND_CTXT_CHECK_ENABLE, reg); 13012 } 13013 } 13014 13015 int hfi1_tempsense_rd(struct hfi1_devdata *dd, struct hfi1_temp *temp) 13016 { 13017 int ret = 0; 13018 u64 reg; 13019 13020 if (dd->icode != ICODE_RTL_SILICON) { 13021 if (HFI1_CAP_IS_KSET(PRINT_UNIMPL)) 13022 dd_dev_info(dd, "%s: tempsense not supported by HW\n", 13023 __func__); 13024 return -EINVAL; 13025 } 13026 reg = read_csr(dd, ASIC_STS_THERM); 13027 temp->curr = ((reg >> ASIC_STS_THERM_CURR_TEMP_SHIFT) & 13028 ASIC_STS_THERM_CURR_TEMP_MASK); 13029 temp->lo_lim = ((reg >> ASIC_STS_THERM_LO_TEMP_SHIFT) & 13030 ASIC_STS_THERM_LO_TEMP_MASK); 13031 temp->hi_lim = ((reg >> ASIC_STS_THERM_HI_TEMP_SHIFT) & 13032 ASIC_STS_THERM_HI_TEMP_MASK); 13033 temp->crit_lim = ((reg >> ASIC_STS_THERM_CRIT_TEMP_SHIFT) & 13034 ASIC_STS_THERM_CRIT_TEMP_MASK); 13035 /* triggers is a 3-bit value - 1 bit per trigger. */ 13036 temp->triggers = (u8)((reg >> ASIC_STS_THERM_LOW_SHIFT) & 0x7); 13037 13038 return ret; 13039 } 13040 13041 /* ========================================================================= */ 13042 13043 /** 13044 * read_mod_write() - Calculate the IRQ register index and set/clear the bits 13045 * @dd: valid devdata 13046 * @src: IRQ source to determine register index from 13047 * @bits: the bits to set or clear 13048 * @set: true == set the bits, false == clear the bits 13049 * 13050 */ 13051 static void read_mod_write(struct hfi1_devdata *dd, u16 src, u64 bits, 13052 bool set) 13053 { 13054 u64 reg; 13055 u16 idx = src / BITS_PER_REGISTER; 13056 13057 spin_lock(&dd->irq_src_lock); 13058 reg = read_csr(dd, CCE_INT_MASK + (8 * idx)); 13059 if (set) 13060 reg |= bits; 13061 else 13062 reg &= ~bits; 13063 write_csr(dd, CCE_INT_MASK + (8 * idx), reg); 13064 spin_unlock(&dd->irq_src_lock); 13065 } 13066 13067 /** 13068 * set_intr_bits() - Enable/disable a range (one or more) IRQ sources 13069 * @dd: valid devdata 13070 * @first: first IRQ source to set/clear 13071 * @last: last IRQ source (inclusive) to set/clear 13072 * @set: true == set the bits, false == clear the bits 13073 * 13074 * If first == last, set the exact source. 13075 */ 13076 int set_intr_bits(struct hfi1_devdata *dd, u16 first, u16 last, bool set) 13077 { 13078 u64 bits = 0; 13079 u64 bit; 13080 u16 src; 13081 13082 if (first > NUM_INTERRUPT_SOURCES || last > NUM_INTERRUPT_SOURCES) 13083 return -EINVAL; 13084 13085 if (last < first) 13086 return -ERANGE; 13087 13088 for (src = first; src <= last; src++) { 13089 bit = src % BITS_PER_REGISTER; 13090 /* wrapped to next register? */ 13091 if (!bit && bits) { 13092 read_mod_write(dd, src - 1, bits, set); 13093 bits = 0; 13094 } 13095 bits |= BIT_ULL(bit); 13096 } 13097 read_mod_write(dd, last, bits, set); 13098 13099 return 0; 13100 } 13101 13102 /* 13103 * Clear all interrupt sources on the chip. 13104 */ 13105 void clear_all_interrupts(struct hfi1_devdata *dd) 13106 { 13107 int i; 13108 13109 for (i = 0; i < CCE_NUM_INT_CSRS; i++) 13110 write_csr(dd, CCE_INT_CLEAR + (8 * i), ~(u64)0); 13111 13112 write_csr(dd, CCE_ERR_CLEAR, ~(u64)0); 13113 write_csr(dd, MISC_ERR_CLEAR, ~(u64)0); 13114 write_csr(dd, RCV_ERR_CLEAR, ~(u64)0); 13115 write_csr(dd, SEND_ERR_CLEAR, ~(u64)0); 13116 write_csr(dd, SEND_PIO_ERR_CLEAR, ~(u64)0); 13117 write_csr(dd, SEND_DMA_ERR_CLEAR, ~(u64)0); 13118 write_csr(dd, SEND_EGRESS_ERR_CLEAR, ~(u64)0); 13119 for (i = 0; i < chip_send_contexts(dd); i++) 13120 write_kctxt_csr(dd, i, SEND_CTXT_ERR_CLEAR, ~(u64)0); 13121 for (i = 0; i < chip_sdma_engines(dd); i++) 13122 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_CLEAR, ~(u64)0); 13123 13124 write_csr(dd, DCC_ERR_FLG_CLR, ~(u64)0); 13125 write_csr(dd, DC_LCB_ERR_CLR, ~(u64)0); 13126 write_csr(dd, DC_DC8051_ERR_CLR, ~(u64)0); 13127 } 13128 13129 /* 13130 * Remap the interrupt source from the general handler to the given MSI-X 13131 * interrupt. 13132 */ 13133 void remap_intr(struct hfi1_devdata *dd, int isrc, int msix_intr) 13134 { 13135 u64 reg; 13136 int m, n; 13137 13138 /* clear from the handled mask of the general interrupt */ 13139 m = isrc / 64; 13140 n = isrc % 64; 13141 if (likely(m < CCE_NUM_INT_CSRS)) { 13142 dd->gi_mask[m] &= ~((u64)1 << n); 13143 } else { 13144 dd_dev_err(dd, "remap interrupt err\n"); 13145 return; 13146 } 13147 13148 /* direct the chip source to the given MSI-X interrupt */ 13149 m = isrc / 8; 13150 n = isrc % 8; 13151 reg = read_csr(dd, CCE_INT_MAP + (8 * m)); 13152 reg &= ~((u64)0xff << (8 * n)); 13153 reg |= ((u64)msix_intr & 0xff) << (8 * n); 13154 write_csr(dd, CCE_INT_MAP + (8 * m), reg); 13155 } 13156 13157 void remap_sdma_interrupts(struct hfi1_devdata *dd, int engine, int msix_intr) 13158 { 13159 /* 13160 * SDMA engine interrupt sources grouped by type, rather than 13161 * engine. Per-engine interrupts are as follows: 13162 * SDMA 13163 * SDMAProgress 13164 * SDMAIdle 13165 */ 13166 remap_intr(dd, IS_SDMA_START + engine, msix_intr); 13167 remap_intr(dd, IS_SDMA_PROGRESS_START + engine, msix_intr); 13168 remap_intr(dd, IS_SDMA_IDLE_START + engine, msix_intr); 13169 } 13170 13171 /* 13172 * Set the general handler to accept all interrupts, remap all 13173 * chip interrupts back to MSI-X 0. 13174 */ 13175 void reset_interrupts(struct hfi1_devdata *dd) 13176 { 13177 int i; 13178 13179 /* all interrupts handled by the general handler */ 13180 for (i = 0; i < CCE_NUM_INT_CSRS; i++) 13181 dd->gi_mask[i] = ~(u64)0; 13182 13183 /* all chip interrupts map to MSI-X 0 */ 13184 for (i = 0; i < CCE_NUM_INT_MAP_CSRS; i++) 13185 write_csr(dd, CCE_INT_MAP + (8 * i), 0); 13186 } 13187 13188 /** 13189 * set_up_interrupts() - Initialize the IRQ resources and state 13190 * @dd: valid devdata 13191 * 13192 */ 13193 static int set_up_interrupts(struct hfi1_devdata *dd) 13194 { 13195 int ret; 13196 13197 /* mask all interrupts */ 13198 set_intr_bits(dd, IS_FIRST_SOURCE, IS_LAST_SOURCE, false); 13199 13200 /* clear all pending interrupts */ 13201 clear_all_interrupts(dd); 13202 13203 /* reset general handler mask, chip MSI-X mappings */ 13204 reset_interrupts(dd); 13205 13206 /* ask for MSI-X interrupts */ 13207 ret = msix_initialize(dd); 13208 if (ret) 13209 return ret; 13210 13211 ret = msix_request_irqs(dd); 13212 if (ret) 13213 msix_clean_up_interrupts(dd); 13214 13215 return ret; 13216 } 13217 13218 /* 13219 * Set up context values in dd. Sets: 13220 * 13221 * num_rcv_contexts - number of contexts being used 13222 * n_krcv_queues - number of kernel contexts 13223 * first_dyn_alloc_ctxt - first dynamically allocated context 13224 * in array of contexts 13225 * freectxts - number of free user contexts 13226 * num_send_contexts - number of PIO send contexts being used 13227 * num_vnic_contexts - number of contexts reserved for VNIC 13228 */ 13229 static int set_up_context_variables(struct hfi1_devdata *dd) 13230 { 13231 unsigned long num_kernel_contexts; 13232 u16 num_vnic_contexts = HFI1_NUM_VNIC_CTXT; 13233 int total_contexts; 13234 int ret; 13235 unsigned ngroups; 13236 int rmt_count; 13237 int user_rmt_reduced; 13238 u32 n_usr_ctxts; 13239 u32 send_contexts = chip_send_contexts(dd); 13240 u32 rcv_contexts = chip_rcv_contexts(dd); 13241 13242 /* 13243 * Kernel receive contexts: 13244 * - Context 0 - control context (VL15/multicast/error) 13245 * - Context 1 - first kernel context 13246 * - Context 2 - second kernel context 13247 * ... 13248 */ 13249 if (n_krcvqs) 13250 /* 13251 * n_krcvqs is the sum of module parameter kernel receive 13252 * contexts, krcvqs[]. It does not include the control 13253 * context, so add that. 13254 */ 13255 num_kernel_contexts = n_krcvqs + 1; 13256 else 13257 num_kernel_contexts = DEFAULT_KRCVQS + 1; 13258 /* 13259 * Every kernel receive context needs an ACK send context. 13260 * one send context is allocated for each VL{0-7} and VL15 13261 */ 13262 if (num_kernel_contexts > (send_contexts - num_vls - 1)) { 13263 dd_dev_err(dd, 13264 "Reducing # kernel rcv contexts to: %d, from %lu\n", 13265 send_contexts - num_vls - 1, 13266 num_kernel_contexts); 13267 num_kernel_contexts = send_contexts - num_vls - 1; 13268 } 13269 13270 /* Accommodate VNIC contexts if possible */ 13271 if ((num_kernel_contexts + num_vnic_contexts) > rcv_contexts) { 13272 dd_dev_err(dd, "No receive contexts available for VNIC\n"); 13273 num_vnic_contexts = 0; 13274 } 13275 total_contexts = num_kernel_contexts + num_vnic_contexts; 13276 13277 /* 13278 * User contexts: 13279 * - default to 1 user context per real (non-HT) CPU core if 13280 * num_user_contexts is negative 13281 */ 13282 if (num_user_contexts < 0) 13283 n_usr_ctxts = cpumask_weight(&node_affinity.real_cpu_mask); 13284 else 13285 n_usr_ctxts = num_user_contexts; 13286 /* 13287 * Adjust the counts given a global max. 13288 */ 13289 if (total_contexts + n_usr_ctxts > rcv_contexts) { 13290 dd_dev_err(dd, 13291 "Reducing # user receive contexts to: %d, from %u\n", 13292 rcv_contexts - total_contexts, 13293 n_usr_ctxts); 13294 /* recalculate */ 13295 n_usr_ctxts = rcv_contexts - total_contexts; 13296 } 13297 13298 /* 13299 * The RMT entries are currently allocated as shown below: 13300 * 1. QOS (0 to 128 entries); 13301 * 2. FECN (num_kernel_context - 1 + num_user_contexts + 13302 * num_vnic_contexts); 13303 * 3. VNIC (num_vnic_contexts). 13304 * It should be noted that FECN oversubscribe num_vnic_contexts 13305 * entries of RMT because both VNIC and PSM could allocate any receive 13306 * context between dd->first_dyn_alloc_text and dd->num_rcv_contexts, 13307 * and PSM FECN must reserve an RMT entry for each possible PSM receive 13308 * context. 13309 */ 13310 rmt_count = qos_rmt_entries(dd, NULL, NULL) + (num_vnic_contexts * 2); 13311 if (HFI1_CAP_IS_KSET(TID_RDMA)) 13312 rmt_count += num_kernel_contexts - 1; 13313 if (rmt_count + n_usr_ctxts > NUM_MAP_ENTRIES) { 13314 user_rmt_reduced = NUM_MAP_ENTRIES - rmt_count; 13315 dd_dev_err(dd, 13316 "RMT size is reducing the number of user receive contexts from %u to %d\n", 13317 n_usr_ctxts, 13318 user_rmt_reduced); 13319 /* recalculate */ 13320 n_usr_ctxts = user_rmt_reduced; 13321 } 13322 13323 total_contexts += n_usr_ctxts; 13324 13325 /* the first N are kernel contexts, the rest are user/vnic contexts */ 13326 dd->num_rcv_contexts = total_contexts; 13327 dd->n_krcv_queues = num_kernel_contexts; 13328 dd->first_dyn_alloc_ctxt = num_kernel_contexts; 13329 dd->num_vnic_contexts = num_vnic_contexts; 13330 dd->num_user_contexts = n_usr_ctxts; 13331 dd->freectxts = n_usr_ctxts; 13332 dd_dev_info(dd, 13333 "rcv contexts: chip %d, used %d (kernel %d, vnic %u, user %u)\n", 13334 rcv_contexts, 13335 (int)dd->num_rcv_contexts, 13336 (int)dd->n_krcv_queues, 13337 dd->num_vnic_contexts, 13338 dd->num_user_contexts); 13339 13340 /* 13341 * Receive array allocation: 13342 * All RcvArray entries are divided into groups of 8. This 13343 * is required by the hardware and will speed up writes to 13344 * consecutive entries by using write-combining of the entire 13345 * cacheline. 13346 * 13347 * The number of groups are evenly divided among all contexts. 13348 * any left over groups will be given to the first N user 13349 * contexts. 13350 */ 13351 dd->rcv_entries.group_size = RCV_INCREMENT; 13352 ngroups = chip_rcv_array_count(dd) / dd->rcv_entries.group_size; 13353 dd->rcv_entries.ngroups = ngroups / dd->num_rcv_contexts; 13354 dd->rcv_entries.nctxt_extra = ngroups - 13355 (dd->num_rcv_contexts * dd->rcv_entries.ngroups); 13356 dd_dev_info(dd, "RcvArray groups %u, ctxts extra %u\n", 13357 dd->rcv_entries.ngroups, 13358 dd->rcv_entries.nctxt_extra); 13359 if (dd->rcv_entries.ngroups * dd->rcv_entries.group_size > 13360 MAX_EAGER_ENTRIES * 2) { 13361 dd->rcv_entries.ngroups = (MAX_EAGER_ENTRIES * 2) / 13362 dd->rcv_entries.group_size; 13363 dd_dev_info(dd, 13364 "RcvArray group count too high, change to %u\n", 13365 dd->rcv_entries.ngroups); 13366 dd->rcv_entries.nctxt_extra = 0; 13367 } 13368 /* 13369 * PIO send contexts 13370 */ 13371 ret = init_sc_pools_and_sizes(dd); 13372 if (ret >= 0) { /* success */ 13373 dd->num_send_contexts = ret; 13374 dd_dev_info( 13375 dd, 13376 "send contexts: chip %d, used %d (kernel %d, ack %d, user %d, vl15 %d)\n", 13377 send_contexts, 13378 dd->num_send_contexts, 13379 dd->sc_sizes[SC_KERNEL].count, 13380 dd->sc_sizes[SC_ACK].count, 13381 dd->sc_sizes[SC_USER].count, 13382 dd->sc_sizes[SC_VL15].count); 13383 ret = 0; /* success */ 13384 } 13385 13386 return ret; 13387 } 13388 13389 /* 13390 * Set the device/port partition key table. The MAD code 13391 * will ensure that, at least, the partial management 13392 * partition key is present in the table. 13393 */ 13394 static void set_partition_keys(struct hfi1_pportdata *ppd) 13395 { 13396 struct hfi1_devdata *dd = ppd->dd; 13397 u64 reg = 0; 13398 int i; 13399 13400 dd_dev_info(dd, "Setting partition keys\n"); 13401 for (i = 0; i < hfi1_get_npkeys(dd); i++) { 13402 reg |= (ppd->pkeys[i] & 13403 RCV_PARTITION_KEY_PARTITION_KEY_A_MASK) << 13404 ((i % 4) * 13405 RCV_PARTITION_KEY_PARTITION_KEY_B_SHIFT); 13406 /* Each register holds 4 PKey values. */ 13407 if ((i % 4) == 3) { 13408 write_csr(dd, RCV_PARTITION_KEY + 13409 ((i - 3) * 2), reg); 13410 reg = 0; 13411 } 13412 } 13413 13414 /* Always enable HW pkeys check when pkeys table is set */ 13415 add_rcvctrl(dd, RCV_CTRL_RCV_PARTITION_KEY_ENABLE_SMASK); 13416 } 13417 13418 /* 13419 * These CSRs and memories are uninitialized on reset and must be 13420 * written before reading to set the ECC/parity bits. 13421 * 13422 * NOTE: All user context CSRs that are not mmaped write-only 13423 * (e.g. the TID flows) must be initialized even if the driver never 13424 * reads them. 13425 */ 13426 static void write_uninitialized_csrs_and_memories(struct hfi1_devdata *dd) 13427 { 13428 int i, j; 13429 13430 /* CceIntMap */ 13431 for (i = 0; i < CCE_NUM_INT_MAP_CSRS; i++) 13432 write_csr(dd, CCE_INT_MAP + (8 * i), 0); 13433 13434 /* SendCtxtCreditReturnAddr */ 13435 for (i = 0; i < chip_send_contexts(dd); i++) 13436 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_RETURN_ADDR, 0); 13437 13438 /* PIO Send buffers */ 13439 /* SDMA Send buffers */ 13440 /* 13441 * These are not normally read, and (presently) have no method 13442 * to be read, so are not pre-initialized 13443 */ 13444 13445 /* RcvHdrAddr */ 13446 /* RcvHdrTailAddr */ 13447 /* RcvTidFlowTable */ 13448 for (i = 0; i < chip_rcv_contexts(dd); i++) { 13449 write_kctxt_csr(dd, i, RCV_HDR_ADDR, 0); 13450 write_kctxt_csr(dd, i, RCV_HDR_TAIL_ADDR, 0); 13451 for (j = 0; j < RXE_NUM_TID_FLOWS; j++) 13452 write_uctxt_csr(dd, i, RCV_TID_FLOW_TABLE + (8 * j), 0); 13453 } 13454 13455 /* RcvArray */ 13456 for (i = 0; i < chip_rcv_array_count(dd); i++) 13457 hfi1_put_tid(dd, i, PT_INVALID_FLUSH, 0, 0); 13458 13459 /* RcvQPMapTable */ 13460 for (i = 0; i < 32; i++) 13461 write_csr(dd, RCV_QP_MAP_TABLE + (8 * i), 0); 13462 } 13463 13464 /* 13465 * Use the ctrl_bits in CceCtrl to clear the status_bits in CceStatus. 13466 */ 13467 static void clear_cce_status(struct hfi1_devdata *dd, u64 status_bits, 13468 u64 ctrl_bits) 13469 { 13470 unsigned long timeout; 13471 u64 reg; 13472 13473 /* is the condition present? */ 13474 reg = read_csr(dd, CCE_STATUS); 13475 if ((reg & status_bits) == 0) 13476 return; 13477 13478 /* clear the condition */ 13479 write_csr(dd, CCE_CTRL, ctrl_bits); 13480 13481 /* wait for the condition to clear */ 13482 timeout = jiffies + msecs_to_jiffies(CCE_STATUS_TIMEOUT); 13483 while (1) { 13484 reg = read_csr(dd, CCE_STATUS); 13485 if ((reg & status_bits) == 0) 13486 return; 13487 if (time_after(jiffies, timeout)) { 13488 dd_dev_err(dd, 13489 "Timeout waiting for CceStatus to clear bits 0x%llx, remaining 0x%llx\n", 13490 status_bits, reg & status_bits); 13491 return; 13492 } 13493 udelay(1); 13494 } 13495 } 13496 13497 /* set CCE CSRs to chip reset defaults */ 13498 static void reset_cce_csrs(struct hfi1_devdata *dd) 13499 { 13500 int i; 13501 13502 /* CCE_REVISION read-only */ 13503 /* CCE_REVISION2 read-only */ 13504 /* CCE_CTRL - bits clear automatically */ 13505 /* CCE_STATUS read-only, use CceCtrl to clear */ 13506 clear_cce_status(dd, ALL_FROZE, CCE_CTRL_SPC_UNFREEZE_SMASK); 13507 clear_cce_status(dd, ALL_TXE_PAUSE, CCE_CTRL_TXE_RESUME_SMASK); 13508 clear_cce_status(dd, ALL_RXE_PAUSE, CCE_CTRL_RXE_RESUME_SMASK); 13509 for (i = 0; i < CCE_NUM_SCRATCH; i++) 13510 write_csr(dd, CCE_SCRATCH + (8 * i), 0); 13511 /* CCE_ERR_STATUS read-only */ 13512 write_csr(dd, CCE_ERR_MASK, 0); 13513 write_csr(dd, CCE_ERR_CLEAR, ~0ull); 13514 /* CCE_ERR_FORCE leave alone */ 13515 for (i = 0; i < CCE_NUM_32_BIT_COUNTERS; i++) 13516 write_csr(dd, CCE_COUNTER_ARRAY32 + (8 * i), 0); 13517 write_csr(dd, CCE_DC_CTRL, CCE_DC_CTRL_RESETCSR); 13518 /* CCE_PCIE_CTRL leave alone */ 13519 for (i = 0; i < CCE_NUM_MSIX_VECTORS; i++) { 13520 write_csr(dd, CCE_MSIX_TABLE_LOWER + (8 * i), 0); 13521 write_csr(dd, CCE_MSIX_TABLE_UPPER + (8 * i), 13522 CCE_MSIX_TABLE_UPPER_RESETCSR); 13523 } 13524 for (i = 0; i < CCE_NUM_MSIX_PBAS; i++) { 13525 /* CCE_MSIX_PBA read-only */ 13526 write_csr(dd, CCE_MSIX_INT_GRANTED, ~0ull); 13527 write_csr(dd, CCE_MSIX_VEC_CLR_WITHOUT_INT, ~0ull); 13528 } 13529 for (i = 0; i < CCE_NUM_INT_MAP_CSRS; i++) 13530 write_csr(dd, CCE_INT_MAP, 0); 13531 for (i = 0; i < CCE_NUM_INT_CSRS; i++) { 13532 /* CCE_INT_STATUS read-only */ 13533 write_csr(dd, CCE_INT_MASK + (8 * i), 0); 13534 write_csr(dd, CCE_INT_CLEAR + (8 * i), ~0ull); 13535 /* CCE_INT_FORCE leave alone */ 13536 /* CCE_INT_BLOCKED read-only */ 13537 } 13538 for (i = 0; i < CCE_NUM_32_BIT_INT_COUNTERS; i++) 13539 write_csr(dd, CCE_INT_COUNTER_ARRAY32 + (8 * i), 0); 13540 } 13541 13542 /* set MISC CSRs to chip reset defaults */ 13543 static void reset_misc_csrs(struct hfi1_devdata *dd) 13544 { 13545 int i; 13546 13547 for (i = 0; i < 32; i++) { 13548 write_csr(dd, MISC_CFG_RSA_R2 + (8 * i), 0); 13549 write_csr(dd, MISC_CFG_RSA_SIGNATURE + (8 * i), 0); 13550 write_csr(dd, MISC_CFG_RSA_MODULUS + (8 * i), 0); 13551 } 13552 /* 13553 * MISC_CFG_SHA_PRELOAD leave alone - always reads 0 and can 13554 * only be written 128-byte chunks 13555 */ 13556 /* init RSA engine to clear lingering errors */ 13557 write_csr(dd, MISC_CFG_RSA_CMD, 1); 13558 write_csr(dd, MISC_CFG_RSA_MU, 0); 13559 write_csr(dd, MISC_CFG_FW_CTRL, 0); 13560 /* MISC_STS_8051_DIGEST read-only */ 13561 /* MISC_STS_SBM_DIGEST read-only */ 13562 /* MISC_STS_PCIE_DIGEST read-only */ 13563 /* MISC_STS_FAB_DIGEST read-only */ 13564 /* MISC_ERR_STATUS read-only */ 13565 write_csr(dd, MISC_ERR_MASK, 0); 13566 write_csr(dd, MISC_ERR_CLEAR, ~0ull); 13567 /* MISC_ERR_FORCE leave alone */ 13568 } 13569 13570 /* set TXE CSRs to chip reset defaults */ 13571 static void reset_txe_csrs(struct hfi1_devdata *dd) 13572 { 13573 int i; 13574 13575 /* 13576 * TXE Kernel CSRs 13577 */ 13578 write_csr(dd, SEND_CTRL, 0); 13579 __cm_reset(dd, 0); /* reset CM internal state */ 13580 /* SEND_CONTEXTS read-only */ 13581 /* SEND_DMA_ENGINES read-only */ 13582 /* SEND_PIO_MEM_SIZE read-only */ 13583 /* SEND_DMA_MEM_SIZE read-only */ 13584 write_csr(dd, SEND_HIGH_PRIORITY_LIMIT, 0); 13585 pio_reset_all(dd); /* SEND_PIO_INIT_CTXT */ 13586 /* SEND_PIO_ERR_STATUS read-only */ 13587 write_csr(dd, SEND_PIO_ERR_MASK, 0); 13588 write_csr(dd, SEND_PIO_ERR_CLEAR, ~0ull); 13589 /* SEND_PIO_ERR_FORCE leave alone */ 13590 /* SEND_DMA_ERR_STATUS read-only */ 13591 write_csr(dd, SEND_DMA_ERR_MASK, 0); 13592 write_csr(dd, SEND_DMA_ERR_CLEAR, ~0ull); 13593 /* SEND_DMA_ERR_FORCE leave alone */ 13594 /* SEND_EGRESS_ERR_STATUS read-only */ 13595 write_csr(dd, SEND_EGRESS_ERR_MASK, 0); 13596 write_csr(dd, SEND_EGRESS_ERR_CLEAR, ~0ull); 13597 /* SEND_EGRESS_ERR_FORCE leave alone */ 13598 write_csr(dd, SEND_BTH_QP, 0); 13599 write_csr(dd, SEND_STATIC_RATE_CONTROL, 0); 13600 write_csr(dd, SEND_SC2VLT0, 0); 13601 write_csr(dd, SEND_SC2VLT1, 0); 13602 write_csr(dd, SEND_SC2VLT2, 0); 13603 write_csr(dd, SEND_SC2VLT3, 0); 13604 write_csr(dd, SEND_LEN_CHECK0, 0); 13605 write_csr(dd, SEND_LEN_CHECK1, 0); 13606 /* SEND_ERR_STATUS read-only */ 13607 write_csr(dd, SEND_ERR_MASK, 0); 13608 write_csr(dd, SEND_ERR_CLEAR, ~0ull); 13609 /* SEND_ERR_FORCE read-only */ 13610 for (i = 0; i < VL_ARB_LOW_PRIO_TABLE_SIZE; i++) 13611 write_csr(dd, SEND_LOW_PRIORITY_LIST + (8 * i), 0); 13612 for (i = 0; i < VL_ARB_HIGH_PRIO_TABLE_SIZE; i++) 13613 write_csr(dd, SEND_HIGH_PRIORITY_LIST + (8 * i), 0); 13614 for (i = 0; i < chip_send_contexts(dd) / NUM_CONTEXTS_PER_SET; i++) 13615 write_csr(dd, SEND_CONTEXT_SET_CTRL + (8 * i), 0); 13616 for (i = 0; i < TXE_NUM_32_BIT_COUNTER; i++) 13617 write_csr(dd, SEND_COUNTER_ARRAY32 + (8 * i), 0); 13618 for (i = 0; i < TXE_NUM_64_BIT_COUNTER; i++) 13619 write_csr(dd, SEND_COUNTER_ARRAY64 + (8 * i), 0); 13620 write_csr(dd, SEND_CM_CTRL, SEND_CM_CTRL_RESETCSR); 13621 write_csr(dd, SEND_CM_GLOBAL_CREDIT, SEND_CM_GLOBAL_CREDIT_RESETCSR); 13622 /* SEND_CM_CREDIT_USED_STATUS read-only */ 13623 write_csr(dd, SEND_CM_TIMER_CTRL, 0); 13624 write_csr(dd, SEND_CM_LOCAL_AU_TABLE0_TO3, 0); 13625 write_csr(dd, SEND_CM_LOCAL_AU_TABLE4_TO7, 0); 13626 write_csr(dd, SEND_CM_REMOTE_AU_TABLE0_TO3, 0); 13627 write_csr(dd, SEND_CM_REMOTE_AU_TABLE4_TO7, 0); 13628 for (i = 0; i < TXE_NUM_DATA_VL; i++) 13629 write_csr(dd, SEND_CM_CREDIT_VL + (8 * i), 0); 13630 write_csr(dd, SEND_CM_CREDIT_VL15, 0); 13631 /* SEND_CM_CREDIT_USED_VL read-only */ 13632 /* SEND_CM_CREDIT_USED_VL15 read-only */ 13633 /* SEND_EGRESS_CTXT_STATUS read-only */ 13634 /* SEND_EGRESS_SEND_DMA_STATUS read-only */ 13635 write_csr(dd, SEND_EGRESS_ERR_INFO, ~0ull); 13636 /* SEND_EGRESS_ERR_INFO read-only */ 13637 /* SEND_EGRESS_ERR_SOURCE read-only */ 13638 13639 /* 13640 * TXE Per-Context CSRs 13641 */ 13642 for (i = 0; i < chip_send_contexts(dd); i++) { 13643 write_kctxt_csr(dd, i, SEND_CTXT_CTRL, 0); 13644 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_CTRL, 0); 13645 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_RETURN_ADDR, 0); 13646 write_kctxt_csr(dd, i, SEND_CTXT_CREDIT_FORCE, 0); 13647 write_kctxt_csr(dd, i, SEND_CTXT_ERR_MASK, 0); 13648 write_kctxt_csr(dd, i, SEND_CTXT_ERR_CLEAR, ~0ull); 13649 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_ENABLE, 0); 13650 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_VL, 0); 13651 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_JOB_KEY, 0); 13652 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_PARTITION_KEY, 0); 13653 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_SLID, 0); 13654 write_kctxt_csr(dd, i, SEND_CTXT_CHECK_OPCODE, 0); 13655 } 13656 13657 /* 13658 * TXE Per-SDMA CSRs 13659 */ 13660 for (i = 0; i < chip_sdma_engines(dd); i++) { 13661 write_kctxt_csr(dd, i, SEND_DMA_CTRL, 0); 13662 /* SEND_DMA_STATUS read-only */ 13663 write_kctxt_csr(dd, i, SEND_DMA_BASE_ADDR, 0); 13664 write_kctxt_csr(dd, i, SEND_DMA_LEN_GEN, 0); 13665 write_kctxt_csr(dd, i, SEND_DMA_TAIL, 0); 13666 /* SEND_DMA_HEAD read-only */ 13667 write_kctxt_csr(dd, i, SEND_DMA_HEAD_ADDR, 0); 13668 write_kctxt_csr(dd, i, SEND_DMA_PRIORITY_THLD, 0); 13669 /* SEND_DMA_IDLE_CNT read-only */ 13670 write_kctxt_csr(dd, i, SEND_DMA_RELOAD_CNT, 0); 13671 write_kctxt_csr(dd, i, SEND_DMA_DESC_CNT, 0); 13672 /* SEND_DMA_DESC_FETCHED_CNT read-only */ 13673 /* SEND_DMA_ENG_ERR_STATUS read-only */ 13674 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_MASK, 0); 13675 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_CLEAR, ~0ull); 13676 /* SEND_DMA_ENG_ERR_FORCE leave alone */ 13677 write_kctxt_csr(dd, i, SEND_DMA_CHECK_ENABLE, 0); 13678 write_kctxt_csr(dd, i, SEND_DMA_CHECK_VL, 0); 13679 write_kctxt_csr(dd, i, SEND_DMA_CHECK_JOB_KEY, 0); 13680 write_kctxt_csr(dd, i, SEND_DMA_CHECK_PARTITION_KEY, 0); 13681 write_kctxt_csr(dd, i, SEND_DMA_CHECK_SLID, 0); 13682 write_kctxt_csr(dd, i, SEND_DMA_CHECK_OPCODE, 0); 13683 write_kctxt_csr(dd, i, SEND_DMA_MEMORY, 0); 13684 } 13685 } 13686 13687 /* 13688 * Expect on entry: 13689 * o Packet ingress is disabled, i.e. RcvCtrl.RcvPortEnable == 0 13690 */ 13691 static void init_rbufs(struct hfi1_devdata *dd) 13692 { 13693 u64 reg; 13694 int count; 13695 13696 /* 13697 * Wait for DMA to stop: RxRbufPktPending and RxPktInProgress are 13698 * clear. 13699 */ 13700 count = 0; 13701 while (1) { 13702 reg = read_csr(dd, RCV_STATUS); 13703 if ((reg & (RCV_STATUS_RX_RBUF_PKT_PENDING_SMASK 13704 | RCV_STATUS_RX_PKT_IN_PROGRESS_SMASK)) == 0) 13705 break; 13706 /* 13707 * Give up after 1ms - maximum wait time. 13708 * 13709 * RBuf size is 136KiB. Slowest possible is PCIe Gen1 x1 at 13710 * 250MB/s bandwidth. Lower rate to 66% for overhead to get: 13711 * 136 KB / (66% * 250MB/s) = 844us 13712 */ 13713 if (count++ > 500) { 13714 dd_dev_err(dd, 13715 "%s: in-progress DMA not clearing: RcvStatus 0x%llx, continuing\n", 13716 __func__, reg); 13717 break; 13718 } 13719 udelay(2); /* do not busy-wait the CSR */ 13720 } 13721 13722 /* start the init - expect RcvCtrl to be 0 */ 13723 write_csr(dd, RCV_CTRL, RCV_CTRL_RX_RBUF_INIT_SMASK); 13724 13725 /* 13726 * Read to force the write of Rcvtrl.RxRbufInit. There is a brief 13727 * period after the write before RcvStatus.RxRbufInitDone is valid. 13728 * The delay in the first run through the loop below is sufficient and 13729 * required before the first read of RcvStatus.RxRbufInintDone. 13730 */ 13731 read_csr(dd, RCV_CTRL); 13732 13733 /* wait for the init to finish */ 13734 count = 0; 13735 while (1) { 13736 /* delay is required first time through - see above */ 13737 udelay(2); /* do not busy-wait the CSR */ 13738 reg = read_csr(dd, RCV_STATUS); 13739 if (reg & (RCV_STATUS_RX_RBUF_INIT_DONE_SMASK)) 13740 break; 13741 13742 /* give up after 100us - slowest possible at 33MHz is 73us */ 13743 if (count++ > 50) { 13744 dd_dev_err(dd, 13745 "%s: RcvStatus.RxRbufInit not set, continuing\n", 13746 __func__); 13747 break; 13748 } 13749 } 13750 } 13751 13752 /* set RXE CSRs to chip reset defaults */ 13753 static void reset_rxe_csrs(struct hfi1_devdata *dd) 13754 { 13755 int i, j; 13756 13757 /* 13758 * RXE Kernel CSRs 13759 */ 13760 write_csr(dd, RCV_CTRL, 0); 13761 init_rbufs(dd); 13762 /* RCV_STATUS read-only */ 13763 /* RCV_CONTEXTS read-only */ 13764 /* RCV_ARRAY_CNT read-only */ 13765 /* RCV_BUF_SIZE read-only */ 13766 write_csr(dd, RCV_BTH_QP, 0); 13767 write_csr(dd, RCV_MULTICAST, 0); 13768 write_csr(dd, RCV_BYPASS, 0); 13769 write_csr(dd, RCV_VL15, 0); 13770 /* this is a clear-down */ 13771 write_csr(dd, RCV_ERR_INFO, 13772 RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK); 13773 /* RCV_ERR_STATUS read-only */ 13774 write_csr(dd, RCV_ERR_MASK, 0); 13775 write_csr(dd, RCV_ERR_CLEAR, ~0ull); 13776 /* RCV_ERR_FORCE leave alone */ 13777 for (i = 0; i < 32; i++) 13778 write_csr(dd, RCV_QP_MAP_TABLE + (8 * i), 0); 13779 for (i = 0; i < 4; i++) 13780 write_csr(dd, RCV_PARTITION_KEY + (8 * i), 0); 13781 for (i = 0; i < RXE_NUM_32_BIT_COUNTERS; i++) 13782 write_csr(dd, RCV_COUNTER_ARRAY32 + (8 * i), 0); 13783 for (i = 0; i < RXE_NUM_64_BIT_COUNTERS; i++) 13784 write_csr(dd, RCV_COUNTER_ARRAY64 + (8 * i), 0); 13785 for (i = 0; i < RXE_NUM_RSM_INSTANCES; i++) 13786 clear_rsm_rule(dd, i); 13787 for (i = 0; i < 32; i++) 13788 write_csr(dd, RCV_RSM_MAP_TABLE + (8 * i), 0); 13789 13790 /* 13791 * RXE Kernel and User Per-Context CSRs 13792 */ 13793 for (i = 0; i < chip_rcv_contexts(dd); i++) { 13794 /* kernel */ 13795 write_kctxt_csr(dd, i, RCV_CTXT_CTRL, 0); 13796 /* RCV_CTXT_STATUS read-only */ 13797 write_kctxt_csr(dd, i, RCV_EGR_CTRL, 0); 13798 write_kctxt_csr(dd, i, RCV_TID_CTRL, 0); 13799 write_kctxt_csr(dd, i, RCV_KEY_CTRL, 0); 13800 write_kctxt_csr(dd, i, RCV_HDR_ADDR, 0); 13801 write_kctxt_csr(dd, i, RCV_HDR_CNT, 0); 13802 write_kctxt_csr(dd, i, RCV_HDR_ENT_SIZE, 0); 13803 write_kctxt_csr(dd, i, RCV_HDR_SIZE, 0); 13804 write_kctxt_csr(dd, i, RCV_HDR_TAIL_ADDR, 0); 13805 write_kctxt_csr(dd, i, RCV_AVAIL_TIME_OUT, 0); 13806 write_kctxt_csr(dd, i, RCV_HDR_OVFL_CNT, 0); 13807 13808 /* user */ 13809 /* RCV_HDR_TAIL read-only */ 13810 write_uctxt_csr(dd, i, RCV_HDR_HEAD, 0); 13811 /* RCV_EGR_INDEX_TAIL read-only */ 13812 write_uctxt_csr(dd, i, RCV_EGR_INDEX_HEAD, 0); 13813 /* RCV_EGR_OFFSET_TAIL read-only */ 13814 for (j = 0; j < RXE_NUM_TID_FLOWS; j++) { 13815 write_uctxt_csr(dd, i, 13816 RCV_TID_FLOW_TABLE + (8 * j), 0); 13817 } 13818 } 13819 } 13820 13821 /* 13822 * Set sc2vl tables. 13823 * 13824 * They power on to zeros, so to avoid send context errors 13825 * they need to be set: 13826 * 13827 * SC 0-7 -> VL 0-7 (respectively) 13828 * SC 15 -> VL 15 13829 * otherwise 13830 * -> VL 0 13831 */ 13832 static void init_sc2vl_tables(struct hfi1_devdata *dd) 13833 { 13834 int i; 13835 /* init per architecture spec, constrained by hardware capability */ 13836 13837 /* HFI maps sent packets */ 13838 write_csr(dd, SEND_SC2VLT0, SC2VL_VAL( 13839 0, 13840 0, 0, 1, 1, 13841 2, 2, 3, 3, 13842 4, 4, 5, 5, 13843 6, 6, 7, 7)); 13844 write_csr(dd, SEND_SC2VLT1, SC2VL_VAL( 13845 1, 13846 8, 0, 9, 0, 13847 10, 0, 11, 0, 13848 12, 0, 13, 0, 13849 14, 0, 15, 15)); 13850 write_csr(dd, SEND_SC2VLT2, SC2VL_VAL( 13851 2, 13852 16, 0, 17, 0, 13853 18, 0, 19, 0, 13854 20, 0, 21, 0, 13855 22, 0, 23, 0)); 13856 write_csr(dd, SEND_SC2VLT3, SC2VL_VAL( 13857 3, 13858 24, 0, 25, 0, 13859 26, 0, 27, 0, 13860 28, 0, 29, 0, 13861 30, 0, 31, 0)); 13862 13863 /* DC maps received packets */ 13864 write_csr(dd, DCC_CFG_SC_VL_TABLE_15_0, DC_SC_VL_VAL( 13865 15_0, 13866 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 13867 8, 0, 9, 0, 10, 0, 11, 0, 12, 0, 13, 0, 14, 0, 15, 15)); 13868 write_csr(dd, DCC_CFG_SC_VL_TABLE_31_16, DC_SC_VL_VAL( 13869 31_16, 13870 16, 0, 17, 0, 18, 0, 19, 0, 20, 0, 21, 0, 22, 0, 23, 0, 13871 24, 0, 25, 0, 26, 0, 27, 0, 28, 0, 29, 0, 30, 0, 31, 0)); 13872 13873 /* initialize the cached sc2vl values consistently with h/w */ 13874 for (i = 0; i < 32; i++) { 13875 if (i < 8 || i == 15) 13876 *((u8 *)(dd->sc2vl) + i) = (u8)i; 13877 else 13878 *((u8 *)(dd->sc2vl) + i) = 0; 13879 } 13880 } 13881 13882 /* 13883 * Read chip sizes and then reset parts to sane, disabled, values. We cannot 13884 * depend on the chip going through a power-on reset - a driver may be loaded 13885 * and unloaded many times. 13886 * 13887 * Do not write any CSR values to the chip in this routine - there may be 13888 * a reset following the (possible) FLR in this routine. 13889 * 13890 */ 13891 static int init_chip(struct hfi1_devdata *dd) 13892 { 13893 int i; 13894 int ret = 0; 13895 13896 /* 13897 * Put the HFI CSRs in a known state. 13898 * Combine this with a DC reset. 13899 * 13900 * Stop the device from doing anything while we do a 13901 * reset. We know there are no other active users of 13902 * the device since we are now in charge. Turn off 13903 * off all outbound and inbound traffic and make sure 13904 * the device does not generate any interrupts. 13905 */ 13906 13907 /* disable send contexts and SDMA engines */ 13908 write_csr(dd, SEND_CTRL, 0); 13909 for (i = 0; i < chip_send_contexts(dd); i++) 13910 write_kctxt_csr(dd, i, SEND_CTXT_CTRL, 0); 13911 for (i = 0; i < chip_sdma_engines(dd); i++) 13912 write_kctxt_csr(dd, i, SEND_DMA_CTRL, 0); 13913 /* disable port (turn off RXE inbound traffic) and contexts */ 13914 write_csr(dd, RCV_CTRL, 0); 13915 for (i = 0; i < chip_rcv_contexts(dd); i++) 13916 write_csr(dd, RCV_CTXT_CTRL, 0); 13917 /* mask all interrupt sources */ 13918 for (i = 0; i < CCE_NUM_INT_CSRS; i++) 13919 write_csr(dd, CCE_INT_MASK + (8 * i), 0ull); 13920 13921 /* 13922 * DC Reset: do a full DC reset before the register clear. 13923 * A recommended length of time to hold is one CSR read, 13924 * so reread the CceDcCtrl. Then, hold the DC in reset 13925 * across the clear. 13926 */ 13927 write_csr(dd, CCE_DC_CTRL, CCE_DC_CTRL_DC_RESET_SMASK); 13928 (void)read_csr(dd, CCE_DC_CTRL); 13929 13930 if (use_flr) { 13931 /* 13932 * A FLR will reset the SPC core and part of the PCIe. 13933 * The parts that need to be restored have already been 13934 * saved. 13935 */ 13936 dd_dev_info(dd, "Resetting CSRs with FLR\n"); 13937 13938 /* do the FLR, the DC reset will remain */ 13939 pcie_flr(dd->pcidev); 13940 13941 /* restore command and BARs */ 13942 ret = restore_pci_variables(dd); 13943 if (ret) { 13944 dd_dev_err(dd, "%s: Could not restore PCI variables\n", 13945 __func__); 13946 return ret; 13947 } 13948 13949 if (is_ax(dd)) { 13950 dd_dev_info(dd, "Resetting CSRs with FLR\n"); 13951 pcie_flr(dd->pcidev); 13952 ret = restore_pci_variables(dd); 13953 if (ret) { 13954 dd_dev_err(dd, "%s: Could not restore PCI variables\n", 13955 __func__); 13956 return ret; 13957 } 13958 } 13959 } else { 13960 dd_dev_info(dd, "Resetting CSRs with writes\n"); 13961 reset_cce_csrs(dd); 13962 reset_txe_csrs(dd); 13963 reset_rxe_csrs(dd); 13964 reset_misc_csrs(dd); 13965 } 13966 /* clear the DC reset */ 13967 write_csr(dd, CCE_DC_CTRL, 0); 13968 13969 /* Set the LED off */ 13970 setextled(dd, 0); 13971 13972 /* 13973 * Clear the QSFP reset. 13974 * An FLR enforces a 0 on all out pins. The driver does not touch 13975 * ASIC_QSFPn_OUT otherwise. This leaves RESET_N low and 13976 * anything plugged constantly in reset, if it pays attention 13977 * to RESET_N. 13978 * Prime examples of this are optical cables. Set all pins high. 13979 * I2CCLK and I2CDAT will change per direction, and INT_N and 13980 * MODPRS_N are input only and their value is ignored. 13981 */ 13982 write_csr(dd, ASIC_QSFP1_OUT, 0x1f); 13983 write_csr(dd, ASIC_QSFP2_OUT, 0x1f); 13984 init_chip_resources(dd); 13985 return ret; 13986 } 13987 13988 static void init_early_variables(struct hfi1_devdata *dd) 13989 { 13990 int i; 13991 13992 /* assign link credit variables */ 13993 dd->vau = CM_VAU; 13994 dd->link_credits = CM_GLOBAL_CREDITS; 13995 if (is_ax(dd)) 13996 dd->link_credits--; 13997 dd->vcu = cu_to_vcu(hfi1_cu); 13998 /* enough room for 8 MAD packets plus header - 17K */ 13999 dd->vl15_init = (8 * (2048 + 128)) / vau_to_au(dd->vau); 14000 if (dd->vl15_init > dd->link_credits) 14001 dd->vl15_init = dd->link_credits; 14002 14003 write_uninitialized_csrs_and_memories(dd); 14004 14005 if (HFI1_CAP_IS_KSET(PKEY_CHECK)) 14006 for (i = 0; i < dd->num_pports; i++) { 14007 struct hfi1_pportdata *ppd = &dd->pport[i]; 14008 14009 set_partition_keys(ppd); 14010 } 14011 init_sc2vl_tables(dd); 14012 } 14013 14014 static void init_kdeth_qp(struct hfi1_devdata *dd) 14015 { 14016 /* user changed the KDETH_QP */ 14017 if (kdeth_qp != 0 && kdeth_qp >= 0xff) { 14018 /* out of range or illegal value */ 14019 dd_dev_err(dd, "Invalid KDETH queue pair prefix, ignoring"); 14020 kdeth_qp = 0; 14021 } 14022 if (kdeth_qp == 0) /* not set, or failed range check */ 14023 kdeth_qp = DEFAULT_KDETH_QP; 14024 14025 write_csr(dd, SEND_BTH_QP, 14026 (kdeth_qp & SEND_BTH_QP_KDETH_QP_MASK) << 14027 SEND_BTH_QP_KDETH_QP_SHIFT); 14028 14029 write_csr(dd, RCV_BTH_QP, 14030 (kdeth_qp & RCV_BTH_QP_KDETH_QP_MASK) << 14031 RCV_BTH_QP_KDETH_QP_SHIFT); 14032 } 14033 14034 /** 14035 * init_qpmap_table 14036 * @dd - device data 14037 * @first_ctxt - first context 14038 * @last_ctxt - first context 14039 * 14040 * This return sets the qpn mapping table that 14041 * is indexed by qpn[8:1]. 14042 * 14043 * The routine will round robin the 256 settings 14044 * from first_ctxt to last_ctxt. 14045 * 14046 * The first/last looks ahead to having specialized 14047 * receive contexts for mgmt and bypass. Normal 14048 * verbs traffic will assumed to be on a range 14049 * of receive contexts. 14050 */ 14051 static void init_qpmap_table(struct hfi1_devdata *dd, 14052 u32 first_ctxt, 14053 u32 last_ctxt) 14054 { 14055 u64 reg = 0; 14056 u64 regno = RCV_QP_MAP_TABLE; 14057 int i; 14058 u64 ctxt = first_ctxt; 14059 14060 for (i = 0; i < 256; i++) { 14061 reg |= ctxt << (8 * (i % 8)); 14062 ctxt++; 14063 if (ctxt > last_ctxt) 14064 ctxt = first_ctxt; 14065 if (i % 8 == 7) { 14066 write_csr(dd, regno, reg); 14067 reg = 0; 14068 regno += 8; 14069 } 14070 } 14071 14072 add_rcvctrl(dd, RCV_CTRL_RCV_QP_MAP_ENABLE_SMASK 14073 | RCV_CTRL_RCV_BYPASS_ENABLE_SMASK); 14074 } 14075 14076 struct rsm_map_table { 14077 u64 map[NUM_MAP_REGS]; 14078 unsigned int used; 14079 }; 14080 14081 struct rsm_rule_data { 14082 u8 offset; 14083 u8 pkt_type; 14084 u32 field1_off; 14085 u32 field2_off; 14086 u32 index1_off; 14087 u32 index1_width; 14088 u32 index2_off; 14089 u32 index2_width; 14090 u32 mask1; 14091 u32 value1; 14092 u32 mask2; 14093 u32 value2; 14094 }; 14095 14096 /* 14097 * Return an initialized RMT map table for users to fill in. OK if it 14098 * returns NULL, indicating no table. 14099 */ 14100 static struct rsm_map_table *alloc_rsm_map_table(struct hfi1_devdata *dd) 14101 { 14102 struct rsm_map_table *rmt; 14103 u8 rxcontext = is_ax(dd) ? 0 : 0xff; /* 0 is default if a0 ver. */ 14104 14105 rmt = kmalloc(sizeof(*rmt), GFP_KERNEL); 14106 if (rmt) { 14107 memset(rmt->map, rxcontext, sizeof(rmt->map)); 14108 rmt->used = 0; 14109 } 14110 14111 return rmt; 14112 } 14113 14114 /* 14115 * Write the final RMT map table to the chip and free the table. OK if 14116 * table is NULL. 14117 */ 14118 static void complete_rsm_map_table(struct hfi1_devdata *dd, 14119 struct rsm_map_table *rmt) 14120 { 14121 int i; 14122 14123 if (rmt) { 14124 /* write table to chip */ 14125 for (i = 0; i < NUM_MAP_REGS; i++) 14126 write_csr(dd, RCV_RSM_MAP_TABLE + (8 * i), rmt->map[i]); 14127 14128 /* enable RSM */ 14129 add_rcvctrl(dd, RCV_CTRL_RCV_RSM_ENABLE_SMASK); 14130 } 14131 } 14132 14133 /* 14134 * Add a receive side mapping rule. 14135 */ 14136 static void add_rsm_rule(struct hfi1_devdata *dd, u8 rule_index, 14137 struct rsm_rule_data *rrd) 14138 { 14139 write_csr(dd, RCV_RSM_CFG + (8 * rule_index), 14140 (u64)rrd->offset << RCV_RSM_CFG_OFFSET_SHIFT | 14141 1ull << rule_index | /* enable bit */ 14142 (u64)rrd->pkt_type << RCV_RSM_CFG_PACKET_TYPE_SHIFT); 14143 write_csr(dd, RCV_RSM_SELECT + (8 * rule_index), 14144 (u64)rrd->field1_off << RCV_RSM_SELECT_FIELD1_OFFSET_SHIFT | 14145 (u64)rrd->field2_off << RCV_RSM_SELECT_FIELD2_OFFSET_SHIFT | 14146 (u64)rrd->index1_off << RCV_RSM_SELECT_INDEX1_OFFSET_SHIFT | 14147 (u64)rrd->index1_width << RCV_RSM_SELECT_INDEX1_WIDTH_SHIFT | 14148 (u64)rrd->index2_off << RCV_RSM_SELECT_INDEX2_OFFSET_SHIFT | 14149 (u64)rrd->index2_width << RCV_RSM_SELECT_INDEX2_WIDTH_SHIFT); 14150 write_csr(dd, RCV_RSM_MATCH + (8 * rule_index), 14151 (u64)rrd->mask1 << RCV_RSM_MATCH_MASK1_SHIFT | 14152 (u64)rrd->value1 << RCV_RSM_MATCH_VALUE1_SHIFT | 14153 (u64)rrd->mask2 << RCV_RSM_MATCH_MASK2_SHIFT | 14154 (u64)rrd->value2 << RCV_RSM_MATCH_VALUE2_SHIFT); 14155 } 14156 14157 /* 14158 * Clear a receive side mapping rule. 14159 */ 14160 static void clear_rsm_rule(struct hfi1_devdata *dd, u8 rule_index) 14161 { 14162 write_csr(dd, RCV_RSM_CFG + (8 * rule_index), 0); 14163 write_csr(dd, RCV_RSM_SELECT + (8 * rule_index), 0); 14164 write_csr(dd, RCV_RSM_MATCH + (8 * rule_index), 0); 14165 } 14166 14167 /* return the number of RSM map table entries that will be used for QOS */ 14168 static int qos_rmt_entries(struct hfi1_devdata *dd, unsigned int *mp, 14169 unsigned int *np) 14170 { 14171 int i; 14172 unsigned int m, n; 14173 u8 max_by_vl = 0; 14174 14175 /* is QOS active at all? */ 14176 if (dd->n_krcv_queues <= MIN_KERNEL_KCTXTS || 14177 num_vls == 1 || 14178 krcvqsset <= 1) 14179 goto no_qos; 14180 14181 /* determine bits for qpn */ 14182 for (i = 0; i < min_t(unsigned int, num_vls, krcvqsset); i++) 14183 if (krcvqs[i] > max_by_vl) 14184 max_by_vl = krcvqs[i]; 14185 if (max_by_vl > 32) 14186 goto no_qos; 14187 m = ilog2(__roundup_pow_of_two(max_by_vl)); 14188 14189 /* determine bits for vl */ 14190 n = ilog2(__roundup_pow_of_two(num_vls)); 14191 14192 /* reject if too much is used */ 14193 if ((m + n) > 7) 14194 goto no_qos; 14195 14196 if (mp) 14197 *mp = m; 14198 if (np) 14199 *np = n; 14200 14201 return 1 << (m + n); 14202 14203 no_qos: 14204 if (mp) 14205 *mp = 0; 14206 if (np) 14207 *np = 0; 14208 return 0; 14209 } 14210 14211 /** 14212 * init_qos - init RX qos 14213 * @dd - device data 14214 * @rmt - RSM map table 14215 * 14216 * This routine initializes Rule 0 and the RSM map table to implement 14217 * quality of service (qos). 14218 * 14219 * If all of the limit tests succeed, qos is applied based on the array 14220 * interpretation of krcvqs where entry 0 is VL0. 14221 * 14222 * The number of vl bits (n) and the number of qpn bits (m) are computed to 14223 * feed both the RSM map table and the single rule. 14224 */ 14225 static void init_qos(struct hfi1_devdata *dd, struct rsm_map_table *rmt) 14226 { 14227 struct rsm_rule_data rrd; 14228 unsigned qpns_per_vl, ctxt, i, qpn, n = 1, m; 14229 unsigned int rmt_entries; 14230 u64 reg; 14231 14232 if (!rmt) 14233 goto bail; 14234 rmt_entries = qos_rmt_entries(dd, &m, &n); 14235 if (rmt_entries == 0) 14236 goto bail; 14237 qpns_per_vl = 1 << m; 14238 14239 /* enough room in the map table? */ 14240 rmt_entries = 1 << (m + n); 14241 if (rmt->used + rmt_entries >= NUM_MAP_ENTRIES) 14242 goto bail; 14243 14244 /* add qos entries to the the RSM map table */ 14245 for (i = 0, ctxt = FIRST_KERNEL_KCTXT; i < num_vls; i++) { 14246 unsigned tctxt; 14247 14248 for (qpn = 0, tctxt = ctxt; 14249 krcvqs[i] && qpn < qpns_per_vl; qpn++) { 14250 unsigned idx, regoff, regidx; 14251 14252 /* generate the index the hardware will produce */ 14253 idx = rmt->used + ((qpn << n) ^ i); 14254 regoff = (idx % 8) * 8; 14255 regidx = idx / 8; 14256 /* replace default with context number */ 14257 reg = rmt->map[regidx]; 14258 reg &= ~(RCV_RSM_MAP_TABLE_RCV_CONTEXT_A_MASK 14259 << regoff); 14260 reg |= (u64)(tctxt++) << regoff; 14261 rmt->map[regidx] = reg; 14262 if (tctxt == ctxt + krcvqs[i]) 14263 tctxt = ctxt; 14264 } 14265 ctxt += krcvqs[i]; 14266 } 14267 14268 rrd.offset = rmt->used; 14269 rrd.pkt_type = 2; 14270 rrd.field1_off = LRH_BTH_MATCH_OFFSET; 14271 rrd.field2_off = LRH_SC_MATCH_OFFSET; 14272 rrd.index1_off = LRH_SC_SELECT_OFFSET; 14273 rrd.index1_width = n; 14274 rrd.index2_off = QPN_SELECT_OFFSET; 14275 rrd.index2_width = m + n; 14276 rrd.mask1 = LRH_BTH_MASK; 14277 rrd.value1 = LRH_BTH_VALUE; 14278 rrd.mask2 = LRH_SC_MASK; 14279 rrd.value2 = LRH_SC_VALUE; 14280 14281 /* add rule 0 */ 14282 add_rsm_rule(dd, RSM_INS_VERBS, &rrd); 14283 14284 /* mark RSM map entries as used */ 14285 rmt->used += rmt_entries; 14286 /* map everything else to the mcast/err/vl15 context */ 14287 init_qpmap_table(dd, HFI1_CTRL_CTXT, HFI1_CTRL_CTXT); 14288 dd->qos_shift = n + 1; 14289 return; 14290 bail: 14291 dd->qos_shift = 1; 14292 init_qpmap_table(dd, FIRST_KERNEL_KCTXT, dd->n_krcv_queues - 1); 14293 } 14294 14295 static void init_fecn_handling(struct hfi1_devdata *dd, 14296 struct rsm_map_table *rmt) 14297 { 14298 struct rsm_rule_data rrd; 14299 u64 reg; 14300 int i, idx, regoff, regidx, start; 14301 u8 offset; 14302 u32 total_cnt; 14303 14304 if (HFI1_CAP_IS_KSET(TID_RDMA)) 14305 /* Exclude context 0 */ 14306 start = 1; 14307 else 14308 start = dd->first_dyn_alloc_ctxt; 14309 14310 total_cnt = dd->num_rcv_contexts - start; 14311 14312 /* there needs to be enough room in the map table */ 14313 if (rmt->used + total_cnt >= NUM_MAP_ENTRIES) { 14314 dd_dev_err(dd, "FECN handling disabled - too many contexts allocated\n"); 14315 return; 14316 } 14317 14318 /* 14319 * RSM will extract the destination context as an index into the 14320 * map table. The destination contexts are a sequential block 14321 * in the range start...num_rcv_contexts-1 (inclusive). 14322 * Map entries are accessed as offset + extracted value. Adjust 14323 * the added offset so this sequence can be placed anywhere in 14324 * the table - as long as the entries themselves do not wrap. 14325 * There are only enough bits in offset for the table size, so 14326 * start with that to allow for a "negative" offset. 14327 */ 14328 offset = (u8)(NUM_MAP_ENTRIES + rmt->used - start); 14329 14330 for (i = start, idx = rmt->used; i < dd->num_rcv_contexts; 14331 i++, idx++) { 14332 /* replace with identity mapping */ 14333 regoff = (idx % 8) * 8; 14334 regidx = idx / 8; 14335 reg = rmt->map[regidx]; 14336 reg &= ~(RCV_RSM_MAP_TABLE_RCV_CONTEXT_A_MASK << regoff); 14337 reg |= (u64)i << regoff; 14338 rmt->map[regidx] = reg; 14339 } 14340 14341 /* 14342 * For RSM intercept of Expected FECN packets: 14343 * o packet type 0 - expected 14344 * o match on F (bit 95), using select/match 1, and 14345 * o match on SH (bit 133), using select/match 2. 14346 * 14347 * Use index 1 to extract the 8-bit receive context from DestQP 14348 * (start at bit 64). Use that as the RSM map table index. 14349 */ 14350 rrd.offset = offset; 14351 rrd.pkt_type = 0; 14352 rrd.field1_off = 95; 14353 rrd.field2_off = 133; 14354 rrd.index1_off = 64; 14355 rrd.index1_width = 8; 14356 rrd.index2_off = 0; 14357 rrd.index2_width = 0; 14358 rrd.mask1 = 1; 14359 rrd.value1 = 1; 14360 rrd.mask2 = 1; 14361 rrd.value2 = 1; 14362 14363 /* add rule 1 */ 14364 add_rsm_rule(dd, RSM_INS_FECN, &rrd); 14365 14366 rmt->used += total_cnt; 14367 } 14368 14369 /* Initialize RSM for VNIC */ 14370 void hfi1_init_vnic_rsm(struct hfi1_devdata *dd) 14371 { 14372 u8 i, j; 14373 u8 ctx_id = 0; 14374 u64 reg; 14375 u32 regoff; 14376 struct rsm_rule_data rrd; 14377 14378 if (hfi1_vnic_is_rsm_full(dd, NUM_VNIC_MAP_ENTRIES)) { 14379 dd_dev_err(dd, "Vnic RSM disabled, rmt entries used = %d\n", 14380 dd->vnic.rmt_start); 14381 return; 14382 } 14383 14384 dev_dbg(&(dd)->pcidev->dev, "Vnic rsm start = %d, end %d\n", 14385 dd->vnic.rmt_start, 14386 dd->vnic.rmt_start + NUM_VNIC_MAP_ENTRIES); 14387 14388 /* Update RSM mapping table, 32 regs, 256 entries - 1 ctx per byte */ 14389 regoff = RCV_RSM_MAP_TABLE + (dd->vnic.rmt_start / 8) * 8; 14390 reg = read_csr(dd, regoff); 14391 for (i = 0; i < NUM_VNIC_MAP_ENTRIES; i++) { 14392 /* Update map register with vnic context */ 14393 j = (dd->vnic.rmt_start + i) % 8; 14394 reg &= ~(0xffllu << (j * 8)); 14395 reg |= (u64)dd->vnic.ctxt[ctx_id++]->ctxt << (j * 8); 14396 /* Wrap up vnic ctx index */ 14397 ctx_id %= dd->vnic.num_ctxt; 14398 /* Write back map register */ 14399 if (j == 7 || ((i + 1) == NUM_VNIC_MAP_ENTRIES)) { 14400 dev_dbg(&(dd)->pcidev->dev, 14401 "Vnic rsm map reg[%d] =0x%llx\n", 14402 regoff - RCV_RSM_MAP_TABLE, reg); 14403 14404 write_csr(dd, regoff, reg); 14405 regoff += 8; 14406 if (i < (NUM_VNIC_MAP_ENTRIES - 1)) 14407 reg = read_csr(dd, regoff); 14408 } 14409 } 14410 14411 /* Add rule for vnic */ 14412 rrd.offset = dd->vnic.rmt_start; 14413 rrd.pkt_type = 4; 14414 /* Match 16B packets */ 14415 rrd.field1_off = L2_TYPE_MATCH_OFFSET; 14416 rrd.mask1 = L2_TYPE_MASK; 14417 rrd.value1 = L2_16B_VALUE; 14418 /* Match ETH L4 packets */ 14419 rrd.field2_off = L4_TYPE_MATCH_OFFSET; 14420 rrd.mask2 = L4_16B_TYPE_MASK; 14421 rrd.value2 = L4_16B_ETH_VALUE; 14422 /* Calc context from veswid and entropy */ 14423 rrd.index1_off = L4_16B_HDR_VESWID_OFFSET; 14424 rrd.index1_width = ilog2(NUM_VNIC_MAP_ENTRIES); 14425 rrd.index2_off = L2_16B_ENTROPY_OFFSET; 14426 rrd.index2_width = ilog2(NUM_VNIC_MAP_ENTRIES); 14427 add_rsm_rule(dd, RSM_INS_VNIC, &rrd); 14428 14429 /* Enable RSM if not already enabled */ 14430 add_rcvctrl(dd, RCV_CTRL_RCV_RSM_ENABLE_SMASK); 14431 } 14432 14433 void hfi1_deinit_vnic_rsm(struct hfi1_devdata *dd) 14434 { 14435 clear_rsm_rule(dd, RSM_INS_VNIC); 14436 14437 /* Disable RSM if used only by vnic */ 14438 if (dd->vnic.rmt_start == 0) 14439 clear_rcvctrl(dd, RCV_CTRL_RCV_RSM_ENABLE_SMASK); 14440 } 14441 14442 static void init_rxe(struct hfi1_devdata *dd) 14443 { 14444 struct rsm_map_table *rmt; 14445 u64 val; 14446 14447 /* enable all receive errors */ 14448 write_csr(dd, RCV_ERR_MASK, ~0ull); 14449 14450 rmt = alloc_rsm_map_table(dd); 14451 /* set up QOS, including the QPN map table */ 14452 init_qos(dd, rmt); 14453 init_fecn_handling(dd, rmt); 14454 complete_rsm_map_table(dd, rmt); 14455 /* record number of used rsm map entries for vnic */ 14456 dd->vnic.rmt_start = rmt->used; 14457 kfree(rmt); 14458 14459 /* 14460 * make sure RcvCtrl.RcvWcb <= PCIe Device Control 14461 * Register Max_Payload_Size (PCI_EXP_DEVCTL in Linux PCIe config 14462 * space, PciCfgCap2.MaxPayloadSize in HFI). There is only one 14463 * invalid configuration: RcvCtrl.RcvWcb set to its max of 256 and 14464 * Max_PayLoad_Size set to its minimum of 128. 14465 * 14466 * Presently, RcvCtrl.RcvWcb is not modified from its default of 0 14467 * (64 bytes). Max_Payload_Size is possibly modified upward in 14468 * tune_pcie_caps() which is called after this routine. 14469 */ 14470 14471 /* Have 16 bytes (4DW) of bypass header available in header queue */ 14472 val = read_csr(dd, RCV_BYPASS); 14473 val &= ~RCV_BYPASS_HDR_SIZE_SMASK; 14474 val |= ((4ull & RCV_BYPASS_HDR_SIZE_MASK) << 14475 RCV_BYPASS_HDR_SIZE_SHIFT); 14476 write_csr(dd, RCV_BYPASS, val); 14477 } 14478 14479 static void init_other(struct hfi1_devdata *dd) 14480 { 14481 /* enable all CCE errors */ 14482 write_csr(dd, CCE_ERR_MASK, ~0ull); 14483 /* enable *some* Misc errors */ 14484 write_csr(dd, MISC_ERR_MASK, DRIVER_MISC_MASK); 14485 /* enable all DC errors, except LCB */ 14486 write_csr(dd, DCC_ERR_FLG_EN, ~0ull); 14487 write_csr(dd, DC_DC8051_ERR_EN, ~0ull); 14488 } 14489 14490 /* 14491 * Fill out the given AU table using the given CU. A CU is defined in terms 14492 * AUs. The table is a an encoding: given the index, how many AUs does that 14493 * represent? 14494 * 14495 * NOTE: Assumes that the register layout is the same for the 14496 * local and remote tables. 14497 */ 14498 static void assign_cm_au_table(struct hfi1_devdata *dd, u32 cu, 14499 u32 csr0to3, u32 csr4to7) 14500 { 14501 write_csr(dd, csr0to3, 14502 0ull << SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE0_SHIFT | 14503 1ull << SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE1_SHIFT | 14504 2ull * cu << 14505 SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE2_SHIFT | 14506 4ull * cu << 14507 SEND_CM_LOCAL_AU_TABLE0_TO3_LOCAL_AU_TABLE3_SHIFT); 14508 write_csr(dd, csr4to7, 14509 8ull * cu << 14510 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE4_SHIFT | 14511 16ull * cu << 14512 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE5_SHIFT | 14513 32ull * cu << 14514 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE6_SHIFT | 14515 64ull * cu << 14516 SEND_CM_LOCAL_AU_TABLE4_TO7_LOCAL_AU_TABLE7_SHIFT); 14517 } 14518 14519 static void assign_local_cm_au_table(struct hfi1_devdata *dd, u8 vcu) 14520 { 14521 assign_cm_au_table(dd, vcu_to_cu(vcu), SEND_CM_LOCAL_AU_TABLE0_TO3, 14522 SEND_CM_LOCAL_AU_TABLE4_TO7); 14523 } 14524 14525 void assign_remote_cm_au_table(struct hfi1_devdata *dd, u8 vcu) 14526 { 14527 assign_cm_au_table(dd, vcu_to_cu(vcu), SEND_CM_REMOTE_AU_TABLE0_TO3, 14528 SEND_CM_REMOTE_AU_TABLE4_TO7); 14529 } 14530 14531 static void init_txe(struct hfi1_devdata *dd) 14532 { 14533 int i; 14534 14535 /* enable all PIO, SDMA, general, and Egress errors */ 14536 write_csr(dd, SEND_PIO_ERR_MASK, ~0ull); 14537 write_csr(dd, SEND_DMA_ERR_MASK, ~0ull); 14538 write_csr(dd, SEND_ERR_MASK, ~0ull); 14539 write_csr(dd, SEND_EGRESS_ERR_MASK, ~0ull); 14540 14541 /* enable all per-context and per-SDMA engine errors */ 14542 for (i = 0; i < chip_send_contexts(dd); i++) 14543 write_kctxt_csr(dd, i, SEND_CTXT_ERR_MASK, ~0ull); 14544 for (i = 0; i < chip_sdma_engines(dd); i++) 14545 write_kctxt_csr(dd, i, SEND_DMA_ENG_ERR_MASK, ~0ull); 14546 14547 /* set the local CU to AU mapping */ 14548 assign_local_cm_au_table(dd, dd->vcu); 14549 14550 /* 14551 * Set reasonable default for Credit Return Timer 14552 * Don't set on Simulator - causes it to choke. 14553 */ 14554 if (dd->icode != ICODE_FUNCTIONAL_SIMULATOR) 14555 write_csr(dd, SEND_CM_TIMER_CTRL, HFI1_CREDIT_RETURN_RATE); 14556 } 14557 14558 int hfi1_set_ctxt_jkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd, 14559 u16 jkey) 14560 { 14561 u8 hw_ctxt; 14562 u64 reg; 14563 14564 if (!rcd || !rcd->sc) 14565 return -EINVAL; 14566 14567 hw_ctxt = rcd->sc->hw_context; 14568 reg = SEND_CTXT_CHECK_JOB_KEY_MASK_SMASK | /* mask is always 1's */ 14569 ((jkey & SEND_CTXT_CHECK_JOB_KEY_VALUE_MASK) << 14570 SEND_CTXT_CHECK_JOB_KEY_VALUE_SHIFT); 14571 /* JOB_KEY_ALLOW_PERMISSIVE is not allowed by default */ 14572 if (HFI1_CAP_KGET_MASK(rcd->flags, ALLOW_PERM_JKEY)) 14573 reg |= SEND_CTXT_CHECK_JOB_KEY_ALLOW_PERMISSIVE_SMASK; 14574 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_JOB_KEY, reg); 14575 /* 14576 * Enable send-side J_KEY integrity check, unless this is A0 h/w 14577 */ 14578 if (!is_ax(dd)) { 14579 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14580 reg |= SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK; 14581 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14582 } 14583 14584 /* Enable J_KEY check on receive context. */ 14585 reg = RCV_KEY_CTRL_JOB_KEY_ENABLE_SMASK | 14586 ((jkey & RCV_KEY_CTRL_JOB_KEY_VALUE_MASK) << 14587 RCV_KEY_CTRL_JOB_KEY_VALUE_SHIFT); 14588 write_kctxt_csr(dd, rcd->ctxt, RCV_KEY_CTRL, reg); 14589 14590 return 0; 14591 } 14592 14593 int hfi1_clear_ctxt_jkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd) 14594 { 14595 u8 hw_ctxt; 14596 u64 reg; 14597 14598 if (!rcd || !rcd->sc) 14599 return -EINVAL; 14600 14601 hw_ctxt = rcd->sc->hw_context; 14602 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_JOB_KEY, 0); 14603 /* 14604 * Disable send-side J_KEY integrity check, unless this is A0 h/w. 14605 * This check would not have been enabled for A0 h/w, see 14606 * set_ctxt_jkey(). 14607 */ 14608 if (!is_ax(dd)) { 14609 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14610 reg &= ~SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK; 14611 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14612 } 14613 /* Turn off the J_KEY on the receive side */ 14614 write_kctxt_csr(dd, rcd->ctxt, RCV_KEY_CTRL, 0); 14615 14616 return 0; 14617 } 14618 14619 int hfi1_set_ctxt_pkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd, 14620 u16 pkey) 14621 { 14622 u8 hw_ctxt; 14623 u64 reg; 14624 14625 if (!rcd || !rcd->sc) 14626 return -EINVAL; 14627 14628 hw_ctxt = rcd->sc->hw_context; 14629 reg = ((u64)pkey & SEND_CTXT_CHECK_PARTITION_KEY_VALUE_MASK) << 14630 SEND_CTXT_CHECK_PARTITION_KEY_VALUE_SHIFT; 14631 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_PARTITION_KEY, reg); 14632 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14633 reg |= SEND_CTXT_CHECK_ENABLE_CHECK_PARTITION_KEY_SMASK; 14634 reg &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_KDETH_PACKETS_SMASK; 14635 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14636 14637 return 0; 14638 } 14639 14640 int hfi1_clear_ctxt_pkey(struct hfi1_devdata *dd, struct hfi1_ctxtdata *ctxt) 14641 { 14642 u8 hw_ctxt; 14643 u64 reg; 14644 14645 if (!ctxt || !ctxt->sc) 14646 return -EINVAL; 14647 14648 hw_ctxt = ctxt->sc->hw_context; 14649 reg = read_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE); 14650 reg &= ~SEND_CTXT_CHECK_ENABLE_CHECK_PARTITION_KEY_SMASK; 14651 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_ENABLE, reg); 14652 write_kctxt_csr(dd, hw_ctxt, SEND_CTXT_CHECK_PARTITION_KEY, 0); 14653 14654 return 0; 14655 } 14656 14657 /* 14658 * Start doing the clean up the the chip. Our clean up happens in multiple 14659 * stages and this is just the first. 14660 */ 14661 void hfi1_start_cleanup(struct hfi1_devdata *dd) 14662 { 14663 aspm_exit(dd); 14664 free_cntrs(dd); 14665 free_rcverr(dd); 14666 finish_chip_resources(dd); 14667 } 14668 14669 #define HFI_BASE_GUID(dev) \ 14670 ((dev)->base_guid & ~(1ULL << GUID_HFI_INDEX_SHIFT)) 14671 14672 /* 14673 * Information can be shared between the two HFIs on the same ASIC 14674 * in the same OS. This function finds the peer device and sets 14675 * up a shared structure. 14676 */ 14677 static int init_asic_data(struct hfi1_devdata *dd) 14678 { 14679 unsigned long index; 14680 struct hfi1_devdata *peer; 14681 struct hfi1_asic_data *asic_data; 14682 int ret = 0; 14683 14684 /* pre-allocate the asic structure in case we are the first device */ 14685 asic_data = kzalloc(sizeof(*dd->asic_data), GFP_KERNEL); 14686 if (!asic_data) 14687 return -ENOMEM; 14688 14689 xa_lock_irq(&hfi1_dev_table); 14690 /* Find our peer device */ 14691 xa_for_each(&hfi1_dev_table, index, peer) { 14692 if ((HFI_BASE_GUID(dd) == HFI_BASE_GUID(peer)) && 14693 dd->unit != peer->unit) 14694 break; 14695 } 14696 14697 if (peer) { 14698 /* use already allocated structure */ 14699 dd->asic_data = peer->asic_data; 14700 kfree(asic_data); 14701 } else { 14702 dd->asic_data = asic_data; 14703 mutex_init(&dd->asic_data->asic_resource_mutex); 14704 } 14705 dd->asic_data->dds[dd->hfi1_id] = dd; /* self back-pointer */ 14706 xa_unlock_irq(&hfi1_dev_table); 14707 14708 /* first one through - set up i2c devices */ 14709 if (!peer) 14710 ret = set_up_i2c(dd, dd->asic_data); 14711 14712 return ret; 14713 } 14714 14715 /* 14716 * Set dd->boardname. Use a generic name if a name is not returned from 14717 * EFI variable space. 14718 * 14719 * Return 0 on success, -ENOMEM if space could not be allocated. 14720 */ 14721 static int obtain_boardname(struct hfi1_devdata *dd) 14722 { 14723 /* generic board description */ 14724 const char generic[] = 14725 "Intel Omni-Path Host Fabric Interface Adapter 100 Series"; 14726 unsigned long size; 14727 int ret; 14728 14729 ret = read_hfi1_efi_var(dd, "description", &size, 14730 (void **)&dd->boardname); 14731 if (ret) { 14732 dd_dev_info(dd, "Board description not found\n"); 14733 /* use generic description */ 14734 dd->boardname = kstrdup(generic, GFP_KERNEL); 14735 if (!dd->boardname) 14736 return -ENOMEM; 14737 } 14738 return 0; 14739 } 14740 14741 /* 14742 * Check the interrupt registers to make sure that they are mapped correctly. 14743 * It is intended to help user identify any mismapping by VMM when the driver 14744 * is running in a VM. This function should only be called before interrupt 14745 * is set up properly. 14746 * 14747 * Return 0 on success, -EINVAL on failure. 14748 */ 14749 static int check_int_registers(struct hfi1_devdata *dd) 14750 { 14751 u64 reg; 14752 u64 all_bits = ~(u64)0; 14753 u64 mask; 14754 14755 /* Clear CceIntMask[0] to avoid raising any interrupts */ 14756 mask = read_csr(dd, CCE_INT_MASK); 14757 write_csr(dd, CCE_INT_MASK, 0ull); 14758 reg = read_csr(dd, CCE_INT_MASK); 14759 if (reg) 14760 goto err_exit; 14761 14762 /* Clear all interrupt status bits */ 14763 write_csr(dd, CCE_INT_CLEAR, all_bits); 14764 reg = read_csr(dd, CCE_INT_STATUS); 14765 if (reg) 14766 goto err_exit; 14767 14768 /* Set all interrupt status bits */ 14769 write_csr(dd, CCE_INT_FORCE, all_bits); 14770 reg = read_csr(dd, CCE_INT_STATUS); 14771 if (reg != all_bits) 14772 goto err_exit; 14773 14774 /* Restore the interrupt mask */ 14775 write_csr(dd, CCE_INT_CLEAR, all_bits); 14776 write_csr(dd, CCE_INT_MASK, mask); 14777 14778 return 0; 14779 err_exit: 14780 write_csr(dd, CCE_INT_MASK, mask); 14781 dd_dev_err(dd, "Interrupt registers not properly mapped by VMM\n"); 14782 return -EINVAL; 14783 } 14784 14785 /** 14786 * hfi1_init_dd() - Initialize most of the dd structure. 14787 * @dev: the pci_dev for hfi1_ib device 14788 * @ent: pci_device_id struct for this dev 14789 * 14790 * This is global, and is called directly at init to set up the 14791 * chip-specific function pointers for later use. 14792 */ 14793 int hfi1_init_dd(struct hfi1_devdata *dd) 14794 { 14795 struct pci_dev *pdev = dd->pcidev; 14796 struct hfi1_pportdata *ppd; 14797 u64 reg; 14798 int i, ret; 14799 static const char * const inames[] = { /* implementation names */ 14800 "RTL silicon", 14801 "RTL VCS simulation", 14802 "RTL FPGA emulation", 14803 "Functional simulator" 14804 }; 14805 struct pci_dev *parent = pdev->bus->self; 14806 u32 sdma_engines = chip_sdma_engines(dd); 14807 14808 ppd = dd->pport; 14809 for (i = 0; i < dd->num_pports; i++, ppd++) { 14810 int vl; 14811 /* init common fields */ 14812 hfi1_init_pportdata(pdev, ppd, dd, 0, 1); 14813 /* DC supports 4 link widths */ 14814 ppd->link_width_supported = 14815 OPA_LINK_WIDTH_1X | OPA_LINK_WIDTH_2X | 14816 OPA_LINK_WIDTH_3X | OPA_LINK_WIDTH_4X; 14817 ppd->link_width_downgrade_supported = 14818 ppd->link_width_supported; 14819 /* start out enabling only 4X */ 14820 ppd->link_width_enabled = OPA_LINK_WIDTH_4X; 14821 ppd->link_width_downgrade_enabled = 14822 ppd->link_width_downgrade_supported; 14823 /* link width active is 0 when link is down */ 14824 /* link width downgrade active is 0 when link is down */ 14825 14826 if (num_vls < HFI1_MIN_VLS_SUPPORTED || 14827 num_vls > HFI1_MAX_VLS_SUPPORTED) { 14828 dd_dev_err(dd, "Invalid num_vls %u, using %u VLs\n", 14829 num_vls, HFI1_MAX_VLS_SUPPORTED); 14830 num_vls = HFI1_MAX_VLS_SUPPORTED; 14831 } 14832 ppd->vls_supported = num_vls; 14833 ppd->vls_operational = ppd->vls_supported; 14834 /* Set the default MTU. */ 14835 for (vl = 0; vl < num_vls; vl++) 14836 dd->vld[vl].mtu = hfi1_max_mtu; 14837 dd->vld[15].mtu = MAX_MAD_PACKET; 14838 /* 14839 * Set the initial values to reasonable default, will be set 14840 * for real when link is up. 14841 */ 14842 ppd->overrun_threshold = 0x4; 14843 ppd->phy_error_threshold = 0xf; 14844 ppd->port_crc_mode_enabled = link_crc_mask; 14845 /* initialize supported LTP CRC mode */ 14846 ppd->port_ltp_crc_mode = cap_to_port_ltp(link_crc_mask) << 8; 14847 /* initialize enabled LTP CRC mode */ 14848 ppd->port_ltp_crc_mode |= cap_to_port_ltp(link_crc_mask) << 4; 14849 /* start in offline */ 14850 ppd->host_link_state = HLS_DN_OFFLINE; 14851 init_vl_arb_caches(ppd); 14852 } 14853 14854 /* 14855 * Do remaining PCIe setup and save PCIe values in dd. 14856 * Any error printing is already done by the init code. 14857 * On return, we have the chip mapped. 14858 */ 14859 ret = hfi1_pcie_ddinit(dd, pdev); 14860 if (ret < 0) 14861 goto bail_free; 14862 14863 /* Save PCI space registers to rewrite after device reset */ 14864 ret = save_pci_variables(dd); 14865 if (ret < 0) 14866 goto bail_cleanup; 14867 14868 dd->majrev = (dd->revision >> CCE_REVISION_CHIP_REV_MAJOR_SHIFT) 14869 & CCE_REVISION_CHIP_REV_MAJOR_MASK; 14870 dd->minrev = (dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT) 14871 & CCE_REVISION_CHIP_REV_MINOR_MASK; 14872 14873 /* 14874 * Check interrupt registers mapping if the driver has no access to 14875 * the upstream component. In this case, it is likely that the driver 14876 * is running in a VM. 14877 */ 14878 if (!parent) { 14879 ret = check_int_registers(dd); 14880 if (ret) 14881 goto bail_cleanup; 14882 } 14883 14884 /* 14885 * obtain the hardware ID - NOT related to unit, which is a 14886 * software enumeration 14887 */ 14888 reg = read_csr(dd, CCE_REVISION2); 14889 dd->hfi1_id = (reg >> CCE_REVISION2_HFI_ID_SHIFT) 14890 & CCE_REVISION2_HFI_ID_MASK; 14891 /* the variable size will remove unwanted bits */ 14892 dd->icode = reg >> CCE_REVISION2_IMPL_CODE_SHIFT; 14893 dd->irev = reg >> CCE_REVISION2_IMPL_REVISION_SHIFT; 14894 dd_dev_info(dd, "Implementation: %s, revision 0x%x\n", 14895 dd->icode < ARRAY_SIZE(inames) ? 14896 inames[dd->icode] : "unknown", (int)dd->irev); 14897 14898 /* speeds the hardware can support */ 14899 dd->pport->link_speed_supported = OPA_LINK_SPEED_25G; 14900 /* speeds allowed to run at */ 14901 dd->pport->link_speed_enabled = dd->pport->link_speed_supported; 14902 /* give a reasonable active value, will be set on link up */ 14903 dd->pport->link_speed_active = OPA_LINK_SPEED_25G; 14904 14905 /* fix up link widths for emulation _p */ 14906 ppd = dd->pport; 14907 if (dd->icode == ICODE_FPGA_EMULATION && is_emulator_p(dd)) { 14908 ppd->link_width_supported = 14909 ppd->link_width_enabled = 14910 ppd->link_width_downgrade_supported = 14911 ppd->link_width_downgrade_enabled = 14912 OPA_LINK_WIDTH_1X; 14913 } 14914 /* insure num_vls isn't larger than number of sdma engines */ 14915 if (HFI1_CAP_IS_KSET(SDMA) && num_vls > sdma_engines) { 14916 dd_dev_err(dd, "num_vls %u too large, using %u VLs\n", 14917 num_vls, sdma_engines); 14918 num_vls = sdma_engines; 14919 ppd->vls_supported = sdma_engines; 14920 ppd->vls_operational = ppd->vls_supported; 14921 } 14922 14923 /* 14924 * Convert the ns parameter to the 64 * cclocks used in the CSR. 14925 * Limit the max if larger than the field holds. If timeout is 14926 * non-zero, then the calculated field will be at least 1. 14927 * 14928 * Must be after icode is set up - the cclock rate depends 14929 * on knowing the hardware being used. 14930 */ 14931 dd->rcv_intr_timeout_csr = ns_to_cclock(dd, rcv_intr_timeout) / 64; 14932 if (dd->rcv_intr_timeout_csr > 14933 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_MASK) 14934 dd->rcv_intr_timeout_csr = 14935 RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_MASK; 14936 else if (dd->rcv_intr_timeout_csr == 0 && rcv_intr_timeout) 14937 dd->rcv_intr_timeout_csr = 1; 14938 14939 /* needs to be done before we look for the peer device */ 14940 read_guid(dd); 14941 14942 /* set up shared ASIC data with peer device */ 14943 ret = init_asic_data(dd); 14944 if (ret) 14945 goto bail_cleanup; 14946 14947 /* obtain chip sizes, reset chip CSRs */ 14948 ret = init_chip(dd); 14949 if (ret) 14950 goto bail_cleanup; 14951 14952 /* read in the PCIe link speed information */ 14953 ret = pcie_speeds(dd); 14954 if (ret) 14955 goto bail_cleanup; 14956 14957 /* call before get_platform_config(), after init_chip_resources() */ 14958 ret = eprom_init(dd); 14959 if (ret) 14960 goto bail_free_rcverr; 14961 14962 /* Needs to be called before hfi1_firmware_init */ 14963 get_platform_config(dd); 14964 14965 /* read in firmware */ 14966 ret = hfi1_firmware_init(dd); 14967 if (ret) 14968 goto bail_cleanup; 14969 14970 /* 14971 * In general, the PCIe Gen3 transition must occur after the 14972 * chip has been idled (so it won't initiate any PCIe transactions 14973 * e.g. an interrupt) and before the driver changes any registers 14974 * (the transition will reset the registers). 14975 * 14976 * In particular, place this call after: 14977 * - init_chip() - the chip will not initiate any PCIe transactions 14978 * - pcie_speeds() - reads the current link speed 14979 * - hfi1_firmware_init() - the needed firmware is ready to be 14980 * downloaded 14981 */ 14982 ret = do_pcie_gen3_transition(dd); 14983 if (ret) 14984 goto bail_cleanup; 14985 14986 /* 14987 * This should probably occur in hfi1_pcie_init(), but historically 14988 * occurs after the do_pcie_gen3_transition() code. 14989 */ 14990 tune_pcie_caps(dd); 14991 14992 /* start setting dd values and adjusting CSRs */ 14993 init_early_variables(dd); 14994 14995 parse_platform_config(dd); 14996 14997 ret = obtain_boardname(dd); 14998 if (ret) 14999 goto bail_cleanup; 15000 15001 snprintf(dd->boardversion, BOARD_VERS_MAX, 15002 "ChipABI %u.%u, ChipRev %u.%u, SW Compat %llu\n", 15003 HFI1_CHIP_VERS_MAJ, HFI1_CHIP_VERS_MIN, 15004 (u32)dd->majrev, 15005 (u32)dd->minrev, 15006 (dd->revision >> CCE_REVISION_SW_SHIFT) 15007 & CCE_REVISION_SW_MASK); 15008 15009 ret = set_up_context_variables(dd); 15010 if (ret) 15011 goto bail_cleanup; 15012 15013 /* set initial RXE CSRs */ 15014 init_rxe(dd); 15015 /* set initial TXE CSRs */ 15016 init_txe(dd); 15017 /* set initial non-RXE, non-TXE CSRs */ 15018 init_other(dd); 15019 /* set up KDETH QP prefix in both RX and TX CSRs */ 15020 init_kdeth_qp(dd); 15021 15022 ret = hfi1_dev_affinity_init(dd); 15023 if (ret) 15024 goto bail_cleanup; 15025 15026 /* send contexts must be set up before receive contexts */ 15027 ret = init_send_contexts(dd); 15028 if (ret) 15029 goto bail_cleanup; 15030 15031 ret = hfi1_create_kctxts(dd); 15032 if (ret) 15033 goto bail_cleanup; 15034 15035 /* 15036 * Initialize aspm, to be done after gen3 transition and setting up 15037 * contexts and before enabling interrupts 15038 */ 15039 aspm_init(dd); 15040 15041 ret = init_pervl_scs(dd); 15042 if (ret) 15043 goto bail_cleanup; 15044 15045 /* sdma init */ 15046 for (i = 0; i < dd->num_pports; ++i) { 15047 ret = sdma_init(dd, i); 15048 if (ret) 15049 goto bail_cleanup; 15050 } 15051 15052 /* use contexts created by hfi1_create_kctxts */ 15053 ret = set_up_interrupts(dd); 15054 if (ret) 15055 goto bail_cleanup; 15056 15057 ret = hfi1_comp_vectors_set_up(dd); 15058 if (ret) 15059 goto bail_clear_intr; 15060 15061 /* set up LCB access - must be after set_up_interrupts() */ 15062 init_lcb_access(dd); 15063 15064 /* 15065 * Serial number is created from the base guid: 15066 * [27:24] = base guid [38:35] 15067 * [23: 0] = base guid [23: 0] 15068 */ 15069 snprintf(dd->serial, SERIAL_MAX, "0x%08llx\n", 15070 (dd->base_guid & 0xFFFFFF) | 15071 ((dd->base_guid >> 11) & 0xF000000)); 15072 15073 dd->oui1 = dd->base_guid >> 56 & 0xFF; 15074 dd->oui2 = dd->base_guid >> 48 & 0xFF; 15075 dd->oui3 = dd->base_guid >> 40 & 0xFF; 15076 15077 ret = load_firmware(dd); /* asymmetric with dispose_firmware() */ 15078 if (ret) 15079 goto bail_clear_intr; 15080 15081 thermal_init(dd); 15082 15083 ret = init_cntrs(dd); 15084 if (ret) 15085 goto bail_clear_intr; 15086 15087 ret = init_rcverr(dd); 15088 if (ret) 15089 goto bail_free_cntrs; 15090 15091 init_completion(&dd->user_comp); 15092 15093 /* The user refcount starts with one to inidicate an active device */ 15094 atomic_set(&dd->user_refcount, 1); 15095 15096 goto bail; 15097 15098 bail_free_rcverr: 15099 free_rcverr(dd); 15100 bail_free_cntrs: 15101 free_cntrs(dd); 15102 bail_clear_intr: 15103 hfi1_comp_vectors_clean_up(dd); 15104 msix_clean_up_interrupts(dd); 15105 bail_cleanup: 15106 hfi1_pcie_ddcleanup(dd); 15107 bail_free: 15108 hfi1_free_devdata(dd); 15109 bail: 15110 return ret; 15111 } 15112 15113 static u16 delay_cycles(struct hfi1_pportdata *ppd, u32 desired_egress_rate, 15114 u32 dw_len) 15115 { 15116 u32 delta_cycles; 15117 u32 current_egress_rate = ppd->current_egress_rate; 15118 /* rates here are in units of 10^6 bits/sec */ 15119 15120 if (desired_egress_rate == -1) 15121 return 0; /* shouldn't happen */ 15122 15123 if (desired_egress_rate >= current_egress_rate) 15124 return 0; /* we can't help go faster, only slower */ 15125 15126 delta_cycles = egress_cycles(dw_len * 4, desired_egress_rate) - 15127 egress_cycles(dw_len * 4, current_egress_rate); 15128 15129 return (u16)delta_cycles; 15130 } 15131 15132 /** 15133 * create_pbc - build a pbc for transmission 15134 * @flags: special case flags or-ed in built pbc 15135 * @srate: static rate 15136 * @vl: vl 15137 * @dwlen: dword length (header words + data words + pbc words) 15138 * 15139 * Create a PBC with the given flags, rate, VL, and length. 15140 * 15141 * NOTE: The PBC created will not insert any HCRC - all callers but one are 15142 * for verbs, which does not use this PSM feature. The lone other caller 15143 * is for the diagnostic interface which calls this if the user does not 15144 * supply their own PBC. 15145 */ 15146 u64 create_pbc(struct hfi1_pportdata *ppd, u64 flags, int srate_mbs, u32 vl, 15147 u32 dw_len) 15148 { 15149 u64 pbc, delay = 0; 15150 15151 if (unlikely(srate_mbs)) 15152 delay = delay_cycles(ppd, srate_mbs, dw_len); 15153 15154 pbc = flags 15155 | (delay << PBC_STATIC_RATE_CONTROL_COUNT_SHIFT) 15156 | ((u64)PBC_IHCRC_NONE << PBC_INSERT_HCRC_SHIFT) 15157 | (vl & PBC_VL_MASK) << PBC_VL_SHIFT 15158 | (dw_len & PBC_LENGTH_DWS_MASK) 15159 << PBC_LENGTH_DWS_SHIFT; 15160 15161 return pbc; 15162 } 15163 15164 #define SBUS_THERMAL 0x4f 15165 #define SBUS_THERM_MONITOR_MODE 0x1 15166 15167 #define THERM_FAILURE(dev, ret, reason) \ 15168 dd_dev_err((dd), \ 15169 "Thermal sensor initialization failed: %s (%d)\n", \ 15170 (reason), (ret)) 15171 15172 /* 15173 * Initialize the thermal sensor. 15174 * 15175 * After initialization, enable polling of thermal sensor through 15176 * SBus interface. In order for this to work, the SBus Master 15177 * firmware has to be loaded due to the fact that the HW polling 15178 * logic uses SBus interrupts, which are not supported with 15179 * default firmware. Otherwise, no data will be returned through 15180 * the ASIC_STS_THERM CSR. 15181 */ 15182 static int thermal_init(struct hfi1_devdata *dd) 15183 { 15184 int ret = 0; 15185 15186 if (dd->icode != ICODE_RTL_SILICON || 15187 check_chip_resource(dd, CR_THERM_INIT, NULL)) 15188 return ret; 15189 15190 ret = acquire_chip_resource(dd, CR_SBUS, SBUS_TIMEOUT); 15191 if (ret) { 15192 THERM_FAILURE(dd, ret, "Acquire SBus"); 15193 return ret; 15194 } 15195 15196 dd_dev_info(dd, "Initializing thermal sensor\n"); 15197 /* Disable polling of thermal readings */ 15198 write_csr(dd, ASIC_CFG_THERM_POLL_EN, 0x0); 15199 msleep(100); 15200 /* Thermal Sensor Initialization */ 15201 /* Step 1: Reset the Thermal SBus Receiver */ 15202 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0, 15203 RESET_SBUS_RECEIVER, 0); 15204 if (ret) { 15205 THERM_FAILURE(dd, ret, "Bus Reset"); 15206 goto done; 15207 } 15208 /* Step 2: Set Reset bit in Thermal block */ 15209 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0, 15210 WRITE_SBUS_RECEIVER, 0x1); 15211 if (ret) { 15212 THERM_FAILURE(dd, ret, "Therm Block Reset"); 15213 goto done; 15214 } 15215 /* Step 3: Write clock divider value (100MHz -> 2MHz) */ 15216 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x1, 15217 WRITE_SBUS_RECEIVER, 0x32); 15218 if (ret) { 15219 THERM_FAILURE(dd, ret, "Write Clock Div"); 15220 goto done; 15221 } 15222 /* Step 4: Select temperature mode */ 15223 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x3, 15224 WRITE_SBUS_RECEIVER, 15225 SBUS_THERM_MONITOR_MODE); 15226 if (ret) { 15227 THERM_FAILURE(dd, ret, "Write Mode Sel"); 15228 goto done; 15229 } 15230 /* Step 5: De-assert block reset and start conversion */ 15231 ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0, 15232 WRITE_SBUS_RECEIVER, 0x2); 15233 if (ret) { 15234 THERM_FAILURE(dd, ret, "Write Reset Deassert"); 15235 goto done; 15236 } 15237 /* Step 5.1: Wait for first conversion (21.5ms per spec) */ 15238 msleep(22); 15239 15240 /* Enable polling of thermal readings */ 15241 write_csr(dd, ASIC_CFG_THERM_POLL_EN, 0x1); 15242 15243 /* Set initialized flag */ 15244 ret = acquire_chip_resource(dd, CR_THERM_INIT, 0); 15245 if (ret) 15246 THERM_FAILURE(dd, ret, "Unable to set thermal init flag"); 15247 15248 done: 15249 release_chip_resource(dd, CR_SBUS); 15250 return ret; 15251 } 15252 15253 static void handle_temp_err(struct hfi1_devdata *dd) 15254 { 15255 struct hfi1_pportdata *ppd = &dd->pport[0]; 15256 /* 15257 * Thermal Critical Interrupt 15258 * Put the device into forced freeze mode, take link down to 15259 * offline, and put DC into reset. 15260 */ 15261 dd_dev_emerg(dd, 15262 "Critical temperature reached! Forcing device into freeze mode!\n"); 15263 dd->flags |= HFI1_FORCED_FREEZE; 15264 start_freeze_handling(ppd, FREEZE_SELF | FREEZE_ABORT); 15265 /* 15266 * Shut DC down as much and as quickly as possible. 15267 * 15268 * Step 1: Take the link down to OFFLINE. This will cause the 15269 * 8051 to put the Serdes in reset. However, we don't want to 15270 * go through the entire link state machine since we want to 15271 * shutdown ASAP. Furthermore, this is not a graceful shutdown 15272 * but rather an attempt to save the chip. 15273 * Code below is almost the same as quiet_serdes() but avoids 15274 * all the extra work and the sleeps. 15275 */ 15276 ppd->driver_link_ready = 0; 15277 ppd->link_enabled = 0; 15278 set_physical_link_state(dd, (OPA_LINKDOWN_REASON_SMA_DISABLED << 8) | 15279 PLS_OFFLINE); 15280 /* 15281 * Step 2: Shutdown LCB and 8051 15282 * After shutdown, do not restore DC_CFG_RESET value. 15283 */ 15284 dc_shutdown(dd); 15285 } 15286