1 /* 2 * Broadcom BCM7xxx System Port Ethernet MAC driver 3 * 4 * Copyright (C) 2014 Broadcom Corporation 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #ifndef __BCM_SYSPORT_H 12 #define __BCM_SYSPORT_H 13 14 #include <linux/if_vlan.h> 15 16 /* Receive/transmit descriptor format */ 17 #define DESC_ADDR_HI_STATUS_LEN 0x00 18 #define DESC_ADDR_HI_SHIFT 0 19 #define DESC_ADDR_HI_MASK 0xff 20 #define DESC_STATUS_SHIFT 8 21 #define DESC_STATUS_MASK 0x3ff 22 #define DESC_LEN_SHIFT 18 23 #define DESC_LEN_MASK 0x7fff 24 #define DESC_ADDR_LO 0x04 25 26 /* HW supports 40-bit addressing hence the */ 27 #define DESC_SIZE (WORDS_PER_DESC * sizeof(u32)) 28 29 /* Default RX buffer allocation size */ 30 #define RX_BUF_LENGTH 2048 31 32 /* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(4) + FCS(4) = 1526. 33 * 1536 is multiple of 256 bytes 34 */ 35 #define ENET_BRCM_TAG_LEN 4 36 #define ENET_PAD 10 37 #define UMAC_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \ 38 ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD) 39 40 /* Transmit status block */ 41 struct bcm_tsb { 42 u32 pcp_dei_vid; 43 #define PCP_DEI_MASK 0xf 44 #define VID_SHIFT 4 45 #define VID_MASK 0xfff 46 u32 l4_ptr_dest_map; 47 #define L4_CSUM_PTR_MASK 0x1ff 48 #define L4_PTR_SHIFT 9 49 #define L4_PTR_MASK 0x1ff 50 #define L4_UDP (1 << 18) 51 #define L4_LENGTH_VALID (1 << 19) 52 #define DEST_MAP_SHIFT 20 53 #define DEST_MAP_MASK 0x1ff 54 }; 55 56 /* Receive status block uses the same 57 * definitions as the DMA descriptor 58 */ 59 struct bcm_rsb { 60 u32 rx_status_len; 61 u32 brcm_egress_tag; 62 }; 63 64 /* Common Receive/Transmit status bits */ 65 #define DESC_L4_CSUM (1 << 7) 66 #define DESC_SOP (1 << 8) 67 #define DESC_EOP (1 << 9) 68 69 /* Receive Status bits */ 70 #define RX_STATUS_UCAST 0 71 #define RX_STATUS_BCAST 0x04 72 #define RX_STATUS_MCAST 0x08 73 #define RX_STATUS_L2_MCAST 0x0c 74 #define RX_STATUS_ERR (1 << 4) 75 #define RX_STATUS_OVFLOW (1 << 5) 76 #define RX_STATUS_PARSE_FAIL (1 << 6) 77 78 /* Transmit Status bits */ 79 #define TX_STATUS_VLAN_NO_ACT 0x00 80 #define TX_STATUS_VLAN_PCP_TSB 0x01 81 #define TX_STATUS_VLAN_QUEUE 0x02 82 #define TX_STATUS_VLAN_VID_TSB 0x03 83 #define TX_STATUS_OWR_CRC (1 << 2) 84 #define TX_STATUS_APP_CRC (1 << 3) 85 #define TX_STATUS_BRCM_TAG_NO_ACT 0 86 #define TX_STATUS_BRCM_TAG_ZERO 0x10 87 #define TX_STATUS_BRCM_TAG_ONE_QUEUE 0x20 88 #define TX_STATUS_BRCM_TAG_ONE_TSB 0x30 89 #define TX_STATUS_SKIP_BYTES (1 << 6) 90 91 /* Specific register definitions */ 92 #define SYS_PORT_TOPCTRL_OFFSET 0 93 #define REV_CNTL 0x00 94 #define REV_MASK 0xffff 95 96 #define RX_FLUSH_CNTL 0x04 97 #define RX_FLUSH (1 << 0) 98 99 #define TX_FLUSH_CNTL 0x08 100 #define TX_FLUSH (1 << 0) 101 102 #define MISC_CNTL 0x0c 103 #define SYS_CLK_SEL (1 << 0) 104 #define TDMA_EOP_SEL (1 << 1) 105 106 /* Level-2 Interrupt controller offsets and defines */ 107 #define SYS_PORT_INTRL2_0_OFFSET 0x200 108 #define SYS_PORT_INTRL2_1_OFFSET 0x240 109 #define INTRL2_CPU_STATUS 0x00 110 #define INTRL2_CPU_SET 0x04 111 #define INTRL2_CPU_CLEAR 0x08 112 #define INTRL2_CPU_MASK_STATUS 0x0c 113 #define INTRL2_CPU_MASK_SET 0x10 114 #define INTRL2_CPU_MASK_CLEAR 0x14 115 116 /* Level-2 instance 0 interrupt bits */ 117 #define INTRL2_0_GISB_ERR (1 << 0) 118 #define INTRL2_0_RBUF_OVFLOW (1 << 1) 119 #define INTRL2_0_TBUF_UNDFLOW (1 << 2) 120 #define INTRL2_0_MPD (1 << 3) 121 #define INTRL2_0_BRCM_MATCH_TAG (1 << 4) 122 #define INTRL2_0_RDMA_MBDONE (1 << 5) 123 #define INTRL2_0_OVER_MAX_THRESH (1 << 6) 124 #define INTRL2_0_BELOW_HYST_THRESH (1 << 7) 125 #define INTRL2_0_FREE_LIST_EMPTY (1 << 8) 126 #define INTRL2_0_TX_RING_FULL (1 << 9) 127 #define INTRL2_0_DESC_ALLOC_ERR (1 << 10) 128 #define INTRL2_0_UNEXP_PKTSIZE_ACK (1 << 11) 129 130 /* SYSTEMPORT Lite groups the TX queues interrupts on instance 0 */ 131 #define INTRL2_0_TDMA_MBDONE_SHIFT 12 132 #define INTRL2_0_TDMA_MBDONE_MASK (0xffff << INTRL2_0_TDMA_MBDONE_SHIFT) 133 134 /* RXCHK offset and defines */ 135 #define SYS_PORT_RXCHK_OFFSET 0x300 136 137 #define RXCHK_CONTROL 0x00 138 #define RXCHK_EN (1 << 0) 139 #define RXCHK_SKIP_FCS (1 << 1) 140 #define RXCHK_BAD_CSUM_DIS (1 << 2) 141 #define RXCHK_BRCM_TAG_EN (1 << 3) 142 #define RXCHK_BRCM_TAG_MATCH_SHIFT 4 143 #define RXCHK_BRCM_TAG_MATCH_MASK 0xff 144 #define RXCHK_PARSE_TNL (1 << 12) 145 #define RXCHK_VIOL_EN (1 << 13) 146 #define RXCHK_VIOL_DIS (1 << 14) 147 #define RXCHK_INCOM_PKT (1 << 15) 148 #define RXCHK_V6_DUPEXT_EN (1 << 16) 149 #define RXCHK_V6_DUPEXT_DIS (1 << 17) 150 #define RXCHK_ETHERTYPE_DIS (1 << 18) 151 #define RXCHK_L2_HDR_DIS (1 << 19) 152 #define RXCHK_L3_HDR_DIS (1 << 20) 153 #define RXCHK_MAC_RX_ERR_DIS (1 << 21) 154 #define RXCHK_PARSE_AUTH (1 << 22) 155 156 #define RXCHK_BRCM_TAG0 0x04 157 #define RXCHK_BRCM_TAG(i) ((i) * RXCHK_BRCM_TAG0) 158 #define RXCHK_BRCM_TAG0_MASK 0x24 159 #define RXCHK_BRCM_TAG_MASK(i) ((i) * RXCHK_BRCM_TAG0_MASK) 160 #define RXCHK_BRCM_TAG_MATCH_STATUS 0x44 161 #define RXCHK_ETHERTYPE 0x48 162 #define RXCHK_BAD_CSUM_CNTR 0x4C 163 #define RXCHK_OTHER_DISC_CNTR 0x50 164 165 /* TXCHCK offsets and defines */ 166 #define SYS_PORT_TXCHK_OFFSET 0x380 167 #define TXCHK_PKT_RDY_THRESH 0x00 168 169 /* Receive buffer offset and defines */ 170 #define SYS_PORT_RBUF_OFFSET 0x400 171 172 #define RBUF_CONTROL 0x00 173 #define RBUF_RSB_EN (1 << 0) 174 #define RBUF_4B_ALGN (1 << 1) 175 #define RBUF_BRCM_TAG_STRIP (1 << 2) 176 #define RBUF_BAD_PKT_DISC (1 << 3) 177 #define RBUF_RESUME_THRESH_SHIFT 4 178 #define RBUF_RESUME_THRESH_MASK 0xff 179 #define RBUF_OK_TO_SEND_SHIFT 12 180 #define RBUF_OK_TO_SEND_MASK 0xff 181 #define RBUF_CRC_REPLACE (1 << 20) 182 #define RBUF_OK_TO_SEND_MODE (1 << 21) 183 /* SYSTEMPORT Lite uses two bits here */ 184 #define RBUF_RSB_SWAP0 (1 << 22) 185 #define RBUF_RSB_SWAP1 (1 << 23) 186 #define RBUF_ACPI_EN (1 << 23) 187 188 #define RBUF_PKT_RDY_THRESH 0x04 189 190 #define RBUF_STATUS 0x08 191 #define RBUF_WOL_MODE (1 << 0) 192 #define RBUF_MPD (1 << 1) 193 #define RBUF_ACPI (1 << 2) 194 195 #define RBUF_OVFL_DISC_CNTR 0x0c 196 #define RBUF_ERR_PKT_CNTR 0x10 197 198 /* Transmit buffer offset and defines */ 199 #define SYS_PORT_TBUF_OFFSET 0x600 200 201 #define TBUF_CONTROL 0x00 202 #define TBUF_BP_EN (1 << 0) 203 #define TBUF_MAX_PKT_THRESH_SHIFT 1 204 #define TBUF_MAX_PKT_THRESH_MASK 0x1f 205 #define TBUF_FULL_THRESH_SHIFT 8 206 #define TBUF_FULL_THRESH_MASK 0x1f 207 208 /* UniMAC offset and defines */ 209 #define SYS_PORT_UMAC_OFFSET 0x800 210 211 #define UMAC_CMD 0x008 212 #define CMD_TX_EN (1 << 0) 213 #define CMD_RX_EN (1 << 1) 214 #define CMD_SPEED_SHIFT 2 215 #define CMD_SPEED_10 0 216 #define CMD_SPEED_100 1 217 #define CMD_SPEED_1000 2 218 #define CMD_SPEED_2500 3 219 #define CMD_SPEED_MASK 3 220 #define CMD_PROMISC (1 << 4) 221 #define CMD_PAD_EN (1 << 5) 222 #define CMD_CRC_FWD (1 << 6) 223 #define CMD_PAUSE_FWD (1 << 7) 224 #define CMD_RX_PAUSE_IGNORE (1 << 8) 225 #define CMD_TX_ADDR_INS (1 << 9) 226 #define CMD_HD_EN (1 << 10) 227 #define CMD_SW_RESET (1 << 13) 228 #define CMD_LCL_LOOP_EN (1 << 15) 229 #define CMD_AUTO_CONFIG (1 << 22) 230 #define CMD_CNTL_FRM_EN (1 << 23) 231 #define CMD_NO_LEN_CHK (1 << 24) 232 #define CMD_RMT_LOOP_EN (1 << 25) 233 #define CMD_PRBL_EN (1 << 27) 234 #define CMD_TX_PAUSE_IGNORE (1 << 28) 235 #define CMD_TX_RX_EN (1 << 29) 236 #define CMD_RUNT_FILTER_DIS (1 << 30) 237 238 #define UMAC_MAC0 0x00c 239 #define UMAC_MAC1 0x010 240 #define UMAC_MAX_FRAME_LEN 0x014 241 242 #define UMAC_TX_FLUSH 0x334 243 244 #define UMAC_MIB_START 0x400 245 246 /* There is a 0xC gap between the end of RX and beginning of TX stats and then 247 * between the end of TX stats and the beginning of the RX RUNT 248 */ 249 #define UMAC_MIB_STAT_OFFSET 0xc 250 251 #define UMAC_MIB_CTRL 0x580 252 #define MIB_RX_CNT_RST (1 << 0) 253 #define MIB_RUNT_CNT_RST (1 << 1) 254 #define MIB_TX_CNT_RST (1 << 2) 255 256 /* These offsets are valid for SYSTEMPORT and SYSTEMPORT Lite */ 257 #define UMAC_MPD_CTRL 0x620 258 #define MPD_EN (1 << 0) 259 #define MSEQ_LEN_SHIFT 16 260 #define MSEQ_LEN_MASK 0xff 261 #define PSW_EN (1 << 27) 262 263 #define UMAC_PSW_MS 0x624 264 #define UMAC_PSW_LS 0x628 265 #define UMAC_MDF_CTRL 0x650 266 #define UMAC_MDF_ADDR 0x654 267 268 /* Only valid on SYSTEMPORT Lite */ 269 #define SYS_PORT_GIB_OFFSET 0x1000 270 271 #define GIB_CONTROL 0x00 272 #define GIB_TX_EN (1 << 0) 273 #define GIB_RX_EN (1 << 1) 274 #define GIB_TX_FLUSH (1 << 2) 275 #define GIB_RX_FLUSH (1 << 3) 276 #define GIB_GTX_CLK_SEL_SHIFT 4 277 #define GIB_GTX_CLK_EXT_CLK (0 << GIB_GTX_CLK_SEL_SHIFT) 278 #define GIB_GTX_CLK_125MHZ (1 << GIB_GTX_CLK_SEL_SHIFT) 279 #define GIB_GTX_CLK_250MHZ (2 << GIB_GTX_CLK_SEL_SHIFT) 280 #define GIB_FCS_STRIP (1 << 6) 281 #define GIB_LCL_LOOP_EN (1 << 7) 282 #define GIB_LCL_LOOP_TXEN (1 << 8) 283 #define GIB_RMT_LOOP_EN (1 << 9) 284 #define GIB_RMT_LOOP_RXEN (1 << 10) 285 #define GIB_RX_PAUSE_EN (1 << 11) 286 #define GIB_PREAMBLE_LEN_SHIFT 12 287 #define GIB_PREAMBLE_LEN_MASK 0xf 288 #define GIB_IPG_LEN_SHIFT 16 289 #define GIB_IPG_LEN_MASK 0x3f 290 #define GIB_PAD_EXTENSION_SHIFT 22 291 #define GIB_PAD_EXTENSION_MASK 0x3f 292 293 #define GIB_MAC1 0x08 294 #define GIB_MAC0 0x0c 295 296 /* Receive DMA offset and defines */ 297 #define SYS_PORT_RDMA_OFFSET 0x2000 298 299 #define RDMA_CONTROL 0x1000 300 #define RDMA_EN (1 << 0) 301 #define RDMA_RING_CFG (1 << 1) 302 #define RDMA_DISC_EN (1 << 2) 303 #define RDMA_BUF_DATA_OFFSET_SHIFT 4 304 #define RDMA_BUF_DATA_OFFSET_MASK 0x3ff 305 306 #define RDMA_STATUS 0x1004 307 #define RDMA_DISABLED (1 << 0) 308 #define RDMA_DESC_RAM_INIT_BUSY (1 << 1) 309 #define RDMA_BP_STATUS (1 << 2) 310 311 #define RDMA_SCB_BURST_SIZE 0x1008 312 313 #define RDMA_RING_BUF_SIZE 0x100c 314 #define RDMA_RING_SIZE_SHIFT 16 315 316 #define RDMA_WRITE_PTR_HI 0x1010 317 #define RDMA_WRITE_PTR_LO 0x1014 318 #define RDMA_PROD_INDEX 0x1018 319 #define RDMA_PROD_INDEX_MASK 0xffff 320 321 #define RDMA_CONS_INDEX 0x101c 322 #define RDMA_CONS_INDEX_MASK 0xffff 323 324 #define RDMA_START_ADDR_HI 0x1020 325 #define RDMA_START_ADDR_LO 0x1024 326 #define RDMA_END_ADDR_HI 0x1028 327 #define RDMA_END_ADDR_LO 0x102c 328 329 #define RDMA_MBDONE_INTR 0x1030 330 #define RDMA_INTR_THRESH_MASK 0x1ff 331 #define RDMA_TIMEOUT_SHIFT 16 332 #define RDMA_TIMEOUT_MASK 0xffff 333 334 #define RDMA_XON_XOFF_THRESH 0x1034 335 #define RDMA_XON_XOFF_THRESH_MASK 0xffff 336 #define RDMA_XOFF_THRESH_SHIFT 16 337 338 #define RDMA_READ_PTR_HI 0x1038 339 #define RDMA_READ_PTR_LO 0x103c 340 341 #define RDMA_OVERRIDE 0x1040 342 #define RDMA_LE_MODE (1 << 0) 343 #define RDMA_REG_MODE (1 << 1) 344 345 #define RDMA_TEST 0x1044 346 #define RDMA_TP_OUT_SEL (1 << 0) 347 #define RDMA_MEM_SEL (1 << 1) 348 349 #define RDMA_DEBUG 0x1048 350 351 /* Transmit DMA offset and defines */ 352 #define TDMA_NUM_RINGS 32 /* rings = queues */ 353 #define TDMA_PORT_SIZE DESC_SIZE /* two 32-bits words */ 354 355 #define SYS_PORT_TDMA_OFFSET 0x4000 356 #define TDMA_WRITE_PORT_OFFSET 0x0000 357 #define TDMA_WRITE_PORT_HI(i) (TDMA_WRITE_PORT_OFFSET + \ 358 (i) * TDMA_PORT_SIZE) 359 #define TDMA_WRITE_PORT_LO(i) (TDMA_WRITE_PORT_OFFSET + \ 360 sizeof(u32) + (i) * TDMA_PORT_SIZE) 361 362 #define TDMA_READ_PORT_OFFSET (TDMA_WRITE_PORT_OFFSET + \ 363 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 364 #define TDMA_READ_PORT_HI(i) (TDMA_READ_PORT_OFFSET + \ 365 (i) * TDMA_PORT_SIZE) 366 #define TDMA_READ_PORT_LO(i) (TDMA_READ_PORT_OFFSET + \ 367 sizeof(u32) + (i) * TDMA_PORT_SIZE) 368 369 #define TDMA_READ_PORT_CMD_OFFSET (TDMA_READ_PORT_OFFSET + \ 370 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 371 #define TDMA_READ_PORT_CMD(i) (TDMA_READ_PORT_CMD_OFFSET + \ 372 (i) * sizeof(u32)) 373 374 #define TDMA_DESC_RING_00_BASE (TDMA_READ_PORT_CMD_OFFSET + \ 375 (TDMA_NUM_RINGS * sizeof(u32))) 376 377 /* Register offsets and defines relatives to a specific ring number */ 378 #define RING_HEAD_TAIL_PTR 0x00 379 #define RING_HEAD_MASK 0x7ff 380 #define RING_TAIL_SHIFT 11 381 #define RING_TAIL_MASK 0x7ff 382 #define RING_FLUSH (1 << 24) 383 #define RING_EN (1 << 25) 384 385 #define RING_COUNT 0x04 386 #define RING_COUNT_MASK 0x7ff 387 #define RING_BUFF_DONE_SHIFT 11 388 #define RING_BUFF_DONE_MASK 0x7ff 389 390 #define RING_MAX_HYST 0x08 391 #define RING_MAX_THRESH_MASK 0x7ff 392 #define RING_HYST_THRESH_SHIFT 11 393 #define RING_HYST_THRESH_MASK 0x7ff 394 395 #define RING_INTR_CONTROL 0x0c 396 #define RING_INTR_THRESH_MASK 0x7ff 397 #define RING_EMPTY_INTR_EN (1 << 15) 398 #define RING_TIMEOUT_SHIFT 16 399 #define RING_TIMEOUT_MASK 0xffff 400 401 #define RING_PROD_CONS_INDEX 0x10 402 #define RING_PROD_INDEX_MASK 0xffff 403 #define RING_CONS_INDEX_SHIFT 16 404 #define RING_CONS_INDEX_MASK 0xffff 405 406 #define RING_MAPPING 0x14 407 #define RING_QID_MASK 0x3 408 #define RING_PORT_ID_SHIFT 3 409 #define RING_PORT_ID_MASK 0x7 410 #define RING_IGNORE_STATUS (1 << 6) 411 #define RING_FAILOVER_EN (1 << 7) 412 #define RING_CREDIT_SHIFT 8 413 #define RING_CREDIT_MASK 0xffff 414 415 #define RING_PCP_DEI_VID 0x18 416 #define RING_VID_MASK 0x7ff 417 #define RING_DEI (1 << 12) 418 #define RING_PCP_SHIFT 13 419 #define RING_PCP_MASK 0x7 420 #define RING_PKT_SIZE_ADJ_SHIFT 16 421 #define RING_PKT_SIZE_ADJ_MASK 0xf 422 423 #define TDMA_DESC_RING_SIZE 28 424 425 /* Defininition for a given TX ring base address */ 426 #define TDMA_DESC_RING_BASE(i) (TDMA_DESC_RING_00_BASE + \ 427 ((i) * TDMA_DESC_RING_SIZE)) 428 429 /* Ring indexed register addreses */ 430 #define TDMA_DESC_RING_HEAD_TAIL_PTR(i) (TDMA_DESC_RING_BASE(i) + \ 431 RING_HEAD_TAIL_PTR) 432 #define TDMA_DESC_RING_COUNT(i) (TDMA_DESC_RING_BASE(i) + \ 433 RING_COUNT) 434 #define TDMA_DESC_RING_MAX_HYST(i) (TDMA_DESC_RING_BASE(i) + \ 435 RING_MAX_HYST) 436 #define TDMA_DESC_RING_INTR_CONTROL(i) (TDMA_DESC_RING_BASE(i) + \ 437 RING_INTR_CONTROL) 438 #define TDMA_DESC_RING_PROD_CONS_INDEX(i) \ 439 (TDMA_DESC_RING_BASE(i) + \ 440 RING_PROD_CONS_INDEX) 441 #define TDMA_DESC_RING_MAPPING(i) (TDMA_DESC_RING_BASE(i) + \ 442 RING_MAPPING) 443 #define TDMA_DESC_RING_PCP_DEI_VID(i) (TDMA_DESC_RING_BASE(i) + \ 444 RING_PCP_DEI_VID) 445 446 #define TDMA_CONTROL 0x600 447 #define TDMA_EN 0 448 #define TSB_EN 1 449 /* Uses 2 bits on SYSTEMPORT Lite and shifts everything by 1 bit, we 450 * keep the SYSTEMPORT layout here and adjust with tdma_control_bit() 451 */ 452 #define TSB_SWAP0 2 453 #define TSB_SWAP1 3 454 #define ACB_ALGO 3 455 #define BUF_DATA_OFFSET_SHIFT 4 456 #define BUF_DATA_OFFSET_MASK 0x3ff 457 #define VLAN_EN 14 458 #define SW_BRCM_TAG 15 459 #define WNC_KPT_SIZE_UPDATE 16 460 #define SYNC_PKT_SIZE 17 461 #define ACH_TXDONE_DELAY_SHIFT 18 462 #define ACH_TXDONE_DELAY_MASK 0xff 463 464 #define TDMA_STATUS 0x604 465 #define TDMA_DISABLED (1 << 0) 466 #define TDMA_LL_RAM_INIT_BUSY (1 << 1) 467 468 #define TDMA_SCB_BURST_SIZE 0x608 469 #define TDMA_OVER_MAX_THRESH_STATUS 0x60c 470 #define TDMA_OVER_HYST_THRESH_STATUS 0x610 471 #define TDMA_TPID 0x614 472 473 #define TDMA_FREE_LIST_HEAD_TAIL_PTR 0x618 474 #define TDMA_FREE_HEAD_MASK 0x7ff 475 #define TDMA_FREE_TAIL_SHIFT 11 476 #define TDMA_FREE_TAIL_MASK 0x7ff 477 478 #define TDMA_FREE_LIST_COUNT 0x61c 479 #define TDMA_FREE_LIST_COUNT_MASK 0x7ff 480 481 #define TDMA_TIER2_ARB_CTRL 0x620 482 #define TDMA_ARB_MODE_RR 0 483 #define TDMA_ARB_MODE_WEIGHT_RR 0x1 484 #define TDMA_ARB_MODE_STRICT 0x2 485 #define TDMA_ARB_MODE_DEFICIT_RR 0x3 486 #define TDMA_CREDIT_SHIFT 4 487 #define TDMA_CREDIT_MASK 0xffff 488 489 #define TDMA_TIER1_ARB_0_CTRL 0x624 490 #define TDMA_ARB_EN (1 << 0) 491 492 #define TDMA_TIER1_ARB_0_QUEUE_EN 0x628 493 #define TDMA_TIER1_ARB_1_CTRL 0x62c 494 #define TDMA_TIER1_ARB_1_QUEUE_EN 0x630 495 #define TDMA_TIER1_ARB_2_CTRL 0x634 496 #define TDMA_TIER1_ARB_2_QUEUE_EN 0x638 497 #define TDMA_TIER1_ARB_3_CTRL 0x63c 498 #define TDMA_TIER1_ARB_3_QUEUE_EN 0x640 499 500 #define TDMA_SCB_ENDIAN_OVERRIDE 0x644 501 #define TDMA_LE_MODE (1 << 0) 502 #define TDMA_REG_MODE (1 << 1) 503 504 #define TDMA_TEST 0x648 505 #define TDMA_TP_OUT_SEL (1 << 0) 506 #define TDMA_MEM_TM (1 << 1) 507 508 #define TDMA_DEBUG 0x64c 509 510 /* Transmit/Receive descriptor */ 511 struct dma_desc { 512 u32 addr_status_len; 513 u32 addr_lo; 514 }; 515 516 /* Number of Receive hardware descriptor words */ 517 #define SP_NUM_HW_RX_DESC_WORDS 1024 518 #define SP_LT_NUM_HW_RX_DESC_WORDS 256 519 520 /* Internal linked-list RAM size */ 521 #define SP_NUM_TX_DESC 1536 522 #define SP_LT_NUM_TX_DESC 256 523 524 #define WORDS_PER_DESC (sizeof(struct dma_desc) / sizeof(u32)) 525 526 /* Rx/Tx common counter group.*/ 527 struct bcm_sysport_pkt_counters { 528 u32 cnt_64; /* RO Received/Transmited 64 bytes packet */ 529 u32 cnt_127; /* RO Rx/Tx 127 bytes packet */ 530 u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */ 531 u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */ 532 u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */ 533 u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */ 534 u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */ 535 u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/ 536 u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/ 537 u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/ 538 }; 539 540 /* RSV, Receive Status Vector */ 541 struct bcm_sysport_rx_counters { 542 struct bcm_sysport_pkt_counters pkt_cnt; 543 u32 pkt; /* RO (0x428) Received pkt count*/ 544 u32 bytes; /* RO Received byte count */ 545 u32 mca; /* RO # of Received multicast pkt */ 546 u32 bca; /* RO # of Receive broadcast pkt */ 547 u32 fcs; /* RO # of Received FCS error */ 548 u32 cf; /* RO # of Received control frame pkt*/ 549 u32 pf; /* RO # of Received pause frame pkt */ 550 u32 uo; /* RO # of unknown op code pkt */ 551 u32 aln; /* RO # of alignment error count */ 552 u32 flr; /* RO # of frame length out of range count */ 553 u32 cde; /* RO # of code error pkt */ 554 u32 fcr; /* RO # of carrier sense error pkt */ 555 u32 ovr; /* RO # of oversize pkt*/ 556 u32 jbr; /* RO # of jabber count */ 557 u32 mtue; /* RO # of MTU error pkt*/ 558 u32 pok; /* RO # of Received good pkt */ 559 u32 uc; /* RO # of unicast pkt */ 560 u32 ppp; /* RO # of PPP pkt */ 561 u32 rcrc; /* RO (0x470),# of CRC match pkt */ 562 }; 563 564 /* TSV, Transmit Status Vector */ 565 struct bcm_sysport_tx_counters { 566 struct bcm_sysport_pkt_counters pkt_cnt; 567 u32 pkts; /* RO (0x4a8) Transmited pkt */ 568 u32 mca; /* RO # of xmited multicast pkt */ 569 u32 bca; /* RO # of xmited broadcast pkt */ 570 u32 pf; /* RO # of xmited pause frame count */ 571 u32 cf; /* RO # of xmited control frame count */ 572 u32 fcs; /* RO # of xmited FCS error count */ 573 u32 ovr; /* RO # of xmited oversize pkt */ 574 u32 drf; /* RO # of xmited deferral pkt */ 575 u32 edf; /* RO # of xmited Excessive deferral pkt*/ 576 u32 scl; /* RO # of xmited single collision pkt */ 577 u32 mcl; /* RO # of xmited multiple collision pkt*/ 578 u32 lcl; /* RO # of xmited late collision pkt */ 579 u32 ecl; /* RO # of xmited excessive collision pkt*/ 580 u32 frg; /* RO # of xmited fragments pkt*/ 581 u32 ncl; /* RO # of xmited total collision count */ 582 u32 jbr; /* RO # of xmited jabber count*/ 583 u32 bytes; /* RO # of xmited byte count */ 584 u32 pok; /* RO # of xmited good pkt */ 585 u32 uc; /* RO (0x4f0) # of xmited unicast pkt */ 586 }; 587 588 struct bcm_sysport_mib { 589 struct bcm_sysport_rx_counters rx; 590 struct bcm_sysport_tx_counters tx; 591 u32 rx_runt_cnt; 592 u32 rx_runt_fcs; 593 u32 rx_runt_fcs_align; 594 u32 rx_runt_bytes; 595 u32 rxchk_bad_csum; 596 u32 rxchk_other_pkt_disc; 597 u32 rbuf_ovflow_cnt; 598 u32 rbuf_err_cnt; 599 u32 alloc_rx_buff_failed; 600 u32 rx_dma_failed; 601 u32 tx_dma_failed; 602 }; 603 604 /* HW maintains a large list of counters */ 605 enum bcm_sysport_stat_type { 606 BCM_SYSPORT_STAT_NETDEV = -1, 607 BCM_SYSPORT_STAT_NETDEV64, 608 BCM_SYSPORT_STAT_MIB_RX, 609 BCM_SYSPORT_STAT_MIB_TX, 610 BCM_SYSPORT_STAT_RUNT, 611 BCM_SYSPORT_STAT_RXCHK, 612 BCM_SYSPORT_STAT_RBUF, 613 BCM_SYSPORT_STAT_SOFT, 614 }; 615 616 /* Macros to help define ethtool statistics */ 617 #define STAT_NETDEV(m) { \ 618 .stat_string = __stringify(m), \ 619 .stat_sizeof = sizeof(((struct net_device_stats *)0)->m), \ 620 .stat_offset = offsetof(struct net_device_stats, m), \ 621 .type = BCM_SYSPORT_STAT_NETDEV, \ 622 } 623 624 #define STAT_NETDEV64(m) { \ 625 .stat_string = __stringify(m), \ 626 .stat_sizeof = sizeof(((struct bcm_sysport_stats64 *)0)->m), \ 627 .stat_offset = offsetof(struct bcm_sysport_stats64, m), \ 628 .type = BCM_SYSPORT_STAT_NETDEV64, \ 629 } 630 631 #define STAT_MIB(str, m, _type) { \ 632 .stat_string = str, \ 633 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 634 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 635 .type = _type, \ 636 } 637 638 #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX) 639 #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX) 640 #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT) 641 #define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT) 642 643 #define STAT_RXCHK(str, m, ofs) { \ 644 .stat_string = str, \ 645 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 646 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 647 .type = BCM_SYSPORT_STAT_RXCHK, \ 648 .reg_offset = ofs, \ 649 } 650 651 #define STAT_RBUF(str, m, ofs) { \ 652 .stat_string = str, \ 653 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 654 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 655 .type = BCM_SYSPORT_STAT_RBUF, \ 656 .reg_offset = ofs, \ 657 } 658 659 /* TX bytes and packets */ 660 #define NUM_SYSPORT_TXQ_STAT 2 661 662 struct bcm_sysport_stats { 663 char stat_string[ETH_GSTRING_LEN]; 664 int stat_sizeof; 665 int stat_offset; 666 enum bcm_sysport_stat_type type; 667 /* reg offset from UMAC base for misc counters */ 668 u16 reg_offset; 669 }; 670 671 struct bcm_sysport_stats64 { 672 /* 64bit stats on 32bit/64bit Machine */ 673 u64 rx_packets; 674 u64 rx_bytes; 675 u64 tx_packets; 676 u64 tx_bytes; 677 }; 678 679 /* Software house keeping helper structure */ 680 struct bcm_sysport_cb { 681 struct sk_buff *skb; /* SKB for RX packets */ 682 void __iomem *bd_addr; /* Buffer descriptor PHYS addr */ 683 684 DEFINE_DMA_UNMAP_ADDR(dma_addr); 685 DEFINE_DMA_UNMAP_LEN(dma_len); 686 }; 687 688 enum bcm_sysport_type { 689 SYSTEMPORT = 0, 690 SYSTEMPORT_LITE, 691 }; 692 693 struct bcm_sysport_hw_params { 694 bool is_lite; 695 unsigned int num_rx_desc_words; 696 }; 697 698 /* Software view of the TX ring */ 699 struct bcm_sysport_tx_ring { 700 spinlock_t lock; /* Ring lock for tx reclaim/xmit */ 701 struct napi_struct napi; /* NAPI per tx queue */ 702 dma_addr_t desc_dma; /* DMA cookie */ 703 unsigned int index; /* Ring index */ 704 unsigned int size; /* Ring current size */ 705 unsigned int alloc_size; /* Ring one-time allocated size */ 706 unsigned int desc_count; /* Number of descriptors */ 707 unsigned int curr_desc; /* Current descriptor */ 708 unsigned int c_index; /* Last consumer index */ 709 unsigned int p_index; /* Current producer index */ 710 struct bcm_sysport_cb *cbs; /* Transmit control blocks */ 711 struct dma_desc *desc_cpu; /* CPU view of the descriptor */ 712 struct bcm_sysport_priv *priv; /* private context backpointer */ 713 unsigned long packets; /* packets statistics */ 714 unsigned long bytes; /* bytes statistics */ 715 }; 716 717 /* Driver private structure */ 718 struct bcm_sysport_priv { 719 void __iomem *base; 720 u32 irq0_stat; 721 u32 irq0_mask; 722 u32 irq1_stat; 723 u32 irq1_mask; 724 bool is_lite; 725 unsigned int num_rx_desc_words; 726 struct napi_struct napi ____cacheline_aligned; 727 struct net_device *netdev; 728 struct platform_device *pdev; 729 int irq0; 730 int irq1; 731 int wol_irq; 732 733 /* Transmit rings */ 734 struct bcm_sysport_tx_ring *tx_rings; 735 736 /* Receive queue */ 737 void __iomem *rx_bds; 738 struct bcm_sysport_cb *rx_cbs; 739 unsigned int num_rx_bds; 740 unsigned int rx_read_ptr; 741 unsigned int rx_c_index; 742 743 /* PHY device */ 744 struct device_node *phy_dn; 745 phy_interface_t phy_interface; 746 int old_pause; 747 int old_link; 748 int old_duplex; 749 750 /* Misc fields */ 751 unsigned int rx_chk_en:1; 752 unsigned int tsb_en:1; 753 unsigned int crc_fwd:1; 754 u16 rev; 755 u32 wolopts; 756 unsigned int wol_irq_disabled:1; 757 758 /* MIB related fields */ 759 struct bcm_sysport_mib mib; 760 761 /* Ethtool */ 762 u32 msg_enable; 763 764 struct bcm_sysport_stats64 stats64; 765 766 /* For atomic update generic 64bit value on 32bit Machine */ 767 struct u64_stats_sync syncp; 768 }; 769 #endif /* __BCM_SYSPORT_H */ 770