1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Broadcom BCM7xxx System Port Ethernet MAC driver 4 * 5 * Copyright (C) 2014 Broadcom Corporation 6 */ 7 8 #ifndef __BCM_SYSPORT_H 9 #define __BCM_SYSPORT_H 10 11 #include <linux/bitmap.h> 12 #include <linux/ethtool.h> 13 #include <linux/if_vlan.h> 14 #include <linux/dim.h> 15 16 #include "unimac.h" 17 18 /* Receive/transmit descriptor format */ 19 #define DESC_ADDR_HI_STATUS_LEN 0x00 20 #define DESC_ADDR_HI_SHIFT 0 21 #define DESC_ADDR_HI_MASK 0xff 22 #define DESC_STATUS_SHIFT 8 23 #define DESC_STATUS_MASK 0x3ff 24 #define DESC_LEN_SHIFT 18 25 #define DESC_LEN_MASK 0x7fff 26 #define DESC_ADDR_LO 0x04 27 28 /* HW supports 40-bit addressing hence the */ 29 #define DESC_SIZE (WORDS_PER_DESC * sizeof(u32)) 30 31 /* Default RX buffer allocation size */ 32 #define RX_BUF_LENGTH 2048 33 34 /* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(4) + FCS(4) = 1526. 35 * 1536 is multiple of 256 bytes 36 */ 37 #define ENET_BRCM_TAG_LEN 4 38 #define ENET_PAD 10 39 #define UMAC_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \ 40 ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD) 41 42 /* Transmit status block */ 43 struct bcm_tsb { 44 u32 pcp_dei_vid; 45 #define PCP_DEI_MASK 0xf 46 #define VID_SHIFT 4 47 #define VID_MASK 0xfff 48 u32 l4_ptr_dest_map; 49 #define L4_CSUM_PTR_MASK 0x1ff 50 #define L4_PTR_SHIFT 9 51 #define L4_PTR_MASK 0x1ff 52 #define L4_UDP (1 << 18) 53 #define L4_LENGTH_VALID (1 << 19) 54 #define DEST_MAP_SHIFT 20 55 #define DEST_MAP_MASK 0x1ff 56 }; 57 58 /* Receive status block uses the same 59 * definitions as the DMA descriptor 60 */ 61 struct bcm_rsb { 62 u32 rx_status_len; 63 u32 brcm_egress_tag; 64 }; 65 66 /* Common Receive/Transmit status bits */ 67 #define DESC_L4_CSUM (1 << 7) 68 #define DESC_SOP (1 << 8) 69 #define DESC_EOP (1 << 9) 70 71 /* Receive Status bits */ 72 #define RX_STATUS_UCAST 0 73 #define RX_STATUS_BCAST 0x04 74 #define RX_STATUS_MCAST 0x08 75 #define RX_STATUS_L2_MCAST 0x0c 76 #define RX_STATUS_ERR (1 << 4) 77 #define RX_STATUS_OVFLOW (1 << 5) 78 #define RX_STATUS_PARSE_FAIL (1 << 6) 79 80 /* Transmit Status bits */ 81 #define TX_STATUS_VLAN_NO_ACT 0x00 82 #define TX_STATUS_VLAN_PCP_TSB 0x01 83 #define TX_STATUS_VLAN_QUEUE 0x02 84 #define TX_STATUS_VLAN_VID_TSB 0x03 85 #define TX_STATUS_OWR_CRC (1 << 2) 86 #define TX_STATUS_APP_CRC (1 << 3) 87 #define TX_STATUS_BRCM_TAG_NO_ACT 0 88 #define TX_STATUS_BRCM_TAG_ZERO 0x10 89 #define TX_STATUS_BRCM_TAG_ONE_QUEUE 0x20 90 #define TX_STATUS_BRCM_TAG_ONE_TSB 0x30 91 #define TX_STATUS_SKIP_BYTES (1 << 6) 92 93 /* Specific register definitions */ 94 #define SYS_PORT_TOPCTRL_OFFSET 0 95 #define REV_CNTL 0x00 96 #define REV_MASK 0xffff 97 98 #define RX_FLUSH_CNTL 0x04 99 #define RX_FLUSH (1 << 0) 100 101 #define TX_FLUSH_CNTL 0x08 102 #define TX_FLUSH (1 << 0) 103 104 #define MISC_CNTL 0x0c 105 #define SYS_CLK_SEL (1 << 0) 106 #define TDMA_EOP_SEL (1 << 1) 107 108 /* Level-2 Interrupt controller offsets and defines */ 109 #define SYS_PORT_INTRL2_0_OFFSET 0x200 110 #define SYS_PORT_INTRL2_1_OFFSET 0x240 111 #define INTRL2_CPU_STATUS 0x00 112 #define INTRL2_CPU_SET 0x04 113 #define INTRL2_CPU_CLEAR 0x08 114 #define INTRL2_CPU_MASK_STATUS 0x0c 115 #define INTRL2_CPU_MASK_SET 0x10 116 #define INTRL2_CPU_MASK_CLEAR 0x14 117 118 /* Level-2 instance 0 interrupt bits */ 119 #define INTRL2_0_GISB_ERR (1 << 0) 120 #define INTRL2_0_RBUF_OVFLOW (1 << 1) 121 #define INTRL2_0_TBUF_UNDFLOW (1 << 2) 122 #define INTRL2_0_MPD (1 << 3) 123 #define INTRL2_0_BRCM_MATCH_TAG (1 << 4) 124 #define INTRL2_0_RDMA_MBDONE (1 << 5) 125 #define INTRL2_0_OVER_MAX_THRESH (1 << 6) 126 #define INTRL2_0_BELOW_HYST_THRESH (1 << 7) 127 #define INTRL2_0_FREE_LIST_EMPTY (1 << 8) 128 #define INTRL2_0_TX_RING_FULL (1 << 9) 129 #define INTRL2_0_DESC_ALLOC_ERR (1 << 10) 130 #define INTRL2_0_UNEXP_PKTSIZE_ACK (1 << 11) 131 132 /* SYSTEMPORT Lite groups the TX queues interrupts on instance 0 */ 133 #define INTRL2_0_TDMA_MBDONE_SHIFT 12 134 #define INTRL2_0_TDMA_MBDONE_MASK (0xffff << INTRL2_0_TDMA_MBDONE_SHIFT) 135 136 /* RXCHK offset and defines */ 137 #define SYS_PORT_RXCHK_OFFSET 0x300 138 139 #define RXCHK_CONTROL 0x00 140 #define RXCHK_EN (1 << 0) 141 #define RXCHK_SKIP_FCS (1 << 1) 142 #define RXCHK_BAD_CSUM_DIS (1 << 2) 143 #define RXCHK_BRCM_TAG_EN (1 << 3) 144 #define RXCHK_BRCM_TAG_MATCH_SHIFT 4 145 #define RXCHK_BRCM_TAG_MATCH_MASK 0xff 146 #define RXCHK_PARSE_TNL (1 << 12) 147 #define RXCHK_VIOL_EN (1 << 13) 148 #define RXCHK_VIOL_DIS (1 << 14) 149 #define RXCHK_INCOM_PKT (1 << 15) 150 #define RXCHK_V6_DUPEXT_EN (1 << 16) 151 #define RXCHK_V6_DUPEXT_DIS (1 << 17) 152 #define RXCHK_ETHERTYPE_DIS (1 << 18) 153 #define RXCHK_L2_HDR_DIS (1 << 19) 154 #define RXCHK_L3_HDR_DIS (1 << 20) 155 #define RXCHK_MAC_RX_ERR_DIS (1 << 21) 156 #define RXCHK_PARSE_AUTH (1 << 22) 157 158 #define RXCHK_BRCM_TAG0 0x04 159 #define RXCHK_BRCM_TAG(i) ((i) * 0x4 + RXCHK_BRCM_TAG0) 160 #define RXCHK_BRCM_TAG0_MASK 0x24 161 #define RXCHK_BRCM_TAG_MASK(i) ((i) * 0x4 + RXCHK_BRCM_TAG0_MASK) 162 #define RXCHK_BRCM_TAG_MATCH_STATUS 0x44 163 #define RXCHK_ETHERTYPE 0x48 164 #define RXCHK_BAD_CSUM_CNTR 0x4C 165 #define RXCHK_OTHER_DISC_CNTR 0x50 166 167 #define RXCHK_BRCM_TAG_MAX 8 168 #define RXCHK_BRCM_TAG_CID_SHIFT 16 169 #define RXCHK_BRCM_TAG_CID_MASK 0xff 170 171 /* TXCHCK offsets and defines */ 172 #define SYS_PORT_TXCHK_OFFSET 0x380 173 #define TXCHK_PKT_RDY_THRESH 0x00 174 175 /* Receive buffer offset and defines */ 176 #define SYS_PORT_RBUF_OFFSET 0x400 177 178 #define RBUF_CONTROL 0x00 179 #define RBUF_RSB_EN (1 << 0) 180 #define RBUF_4B_ALGN (1 << 1) 181 #define RBUF_BRCM_TAG_STRIP (1 << 2) 182 #define RBUF_BAD_PKT_DISC (1 << 3) 183 #define RBUF_RESUME_THRESH_SHIFT 4 184 #define RBUF_RESUME_THRESH_MASK 0xff 185 #define RBUF_OK_TO_SEND_SHIFT 12 186 #define RBUF_OK_TO_SEND_MASK 0xff 187 #define RBUF_CRC_REPLACE (1 << 20) 188 #define RBUF_OK_TO_SEND_MODE (1 << 21) 189 /* SYSTEMPORT Lite uses two bits here */ 190 #define RBUF_RSB_SWAP0 (1 << 22) 191 #define RBUF_RSB_SWAP1 (1 << 23) 192 #define RBUF_ACPI_EN (1 << 23) 193 #define RBUF_ACPI_EN_LITE (1 << 24) 194 195 #define RBUF_PKT_RDY_THRESH 0x04 196 197 #define RBUF_STATUS 0x08 198 #define RBUF_WOL_MODE (1 << 0) 199 #define RBUF_MPD (1 << 1) 200 #define RBUF_ACPI (1 << 2) 201 202 #define RBUF_OVFL_DISC_CNTR 0x0c 203 #define RBUF_ERR_PKT_CNTR 0x10 204 205 /* Transmit buffer offset and defines */ 206 #define SYS_PORT_TBUF_OFFSET 0x600 207 208 #define TBUF_CONTROL 0x00 209 #define TBUF_BP_EN (1 << 0) 210 #define TBUF_MAX_PKT_THRESH_SHIFT 1 211 #define TBUF_MAX_PKT_THRESH_MASK 0x1f 212 #define TBUF_FULL_THRESH_SHIFT 8 213 #define TBUF_FULL_THRESH_MASK 0x1f 214 215 /* UniMAC offset and defines */ 216 #define SYS_PORT_UMAC_OFFSET 0x800 217 218 #define UMAC_MIB_START 0x400 219 220 /* There is a 0xC gap between the end of RX and beginning of TX stats and then 221 * between the end of TX stats and the beginning of the RX RUNT 222 */ 223 #define UMAC_MIB_STAT_OFFSET 0xc 224 225 #define UMAC_MIB_CTRL 0x580 226 #define MIB_RX_CNT_RST (1 << 0) 227 #define MIB_RUNT_CNT_RST (1 << 1) 228 #define MIB_TX_CNT_RST (1 << 2) 229 230 /* These offsets are valid for SYSTEMPORT and SYSTEMPORT Lite */ 231 #define UMAC_MPD_CTRL 0x620 232 #define MPD_EN (1 << 0) 233 #define MSEQ_LEN_SHIFT 16 234 #define MSEQ_LEN_MASK 0xff 235 #define PSW_EN (1 << 27) 236 237 #define UMAC_PSW_MS 0x624 238 #define UMAC_PSW_LS 0x628 239 #define UMAC_MDF_CTRL 0x650 240 #define UMAC_MDF_ADDR 0x654 241 242 /* Only valid on SYSTEMPORT Lite */ 243 #define SYS_PORT_GIB_OFFSET 0x1000 244 245 #define GIB_CONTROL 0x00 246 #define GIB_TX_EN (1 << 0) 247 #define GIB_RX_EN (1 << 1) 248 #define GIB_TX_FLUSH (1 << 2) 249 #define GIB_RX_FLUSH (1 << 3) 250 #define GIB_GTX_CLK_SEL_SHIFT 4 251 #define GIB_GTX_CLK_EXT_CLK (0 << GIB_GTX_CLK_SEL_SHIFT) 252 #define GIB_GTX_CLK_125MHZ (1 << GIB_GTX_CLK_SEL_SHIFT) 253 #define GIB_GTX_CLK_250MHZ (2 << GIB_GTX_CLK_SEL_SHIFT) 254 #define GIB_FCS_STRIP_SHIFT 6 255 #define GIB_FCS_STRIP (1 << GIB_FCS_STRIP_SHIFT) 256 #define GIB_LCL_LOOP_EN (1 << 7) 257 #define GIB_LCL_LOOP_TXEN (1 << 8) 258 #define GIB_RMT_LOOP_EN (1 << 9) 259 #define GIB_RMT_LOOP_RXEN (1 << 10) 260 #define GIB_RX_PAUSE_EN (1 << 11) 261 #define GIB_PREAMBLE_LEN_SHIFT 12 262 #define GIB_PREAMBLE_LEN_MASK 0xf 263 #define GIB_IPG_LEN_SHIFT 16 264 #define GIB_IPG_LEN_MASK 0x3f 265 #define GIB_PAD_EXTENSION_SHIFT 22 266 #define GIB_PAD_EXTENSION_MASK 0x3f 267 268 #define GIB_MAC1 0x08 269 #define GIB_MAC0 0x0c 270 271 /* Receive DMA offset and defines */ 272 #define SYS_PORT_RDMA_OFFSET 0x2000 273 274 #define RDMA_CONTROL 0x1000 275 #define RDMA_EN (1 << 0) 276 #define RDMA_RING_CFG (1 << 1) 277 #define RDMA_DISC_EN (1 << 2) 278 #define RDMA_BUF_DATA_OFFSET_SHIFT 4 279 #define RDMA_BUF_DATA_OFFSET_MASK 0x3ff 280 281 #define RDMA_STATUS 0x1004 282 #define RDMA_DISABLED (1 << 0) 283 #define RDMA_DESC_RAM_INIT_BUSY (1 << 1) 284 #define RDMA_BP_STATUS (1 << 2) 285 286 #define RDMA_SCB_BURST_SIZE 0x1008 287 288 #define RDMA_RING_BUF_SIZE 0x100c 289 #define RDMA_RING_SIZE_SHIFT 16 290 291 #define RDMA_WRITE_PTR_HI 0x1010 292 #define RDMA_WRITE_PTR_LO 0x1014 293 #define RDMA_PROD_INDEX 0x1018 294 #define RDMA_PROD_INDEX_MASK 0xffff 295 296 #define RDMA_CONS_INDEX 0x101c 297 #define RDMA_CONS_INDEX_MASK 0xffff 298 299 #define RDMA_START_ADDR_HI 0x1020 300 #define RDMA_START_ADDR_LO 0x1024 301 #define RDMA_END_ADDR_HI 0x1028 302 #define RDMA_END_ADDR_LO 0x102c 303 304 #define RDMA_MBDONE_INTR 0x1030 305 #define RDMA_INTR_THRESH_MASK 0x1ff 306 #define RDMA_TIMEOUT_SHIFT 16 307 #define RDMA_TIMEOUT_MASK 0xffff 308 309 #define RDMA_XON_XOFF_THRESH 0x1034 310 #define RDMA_XON_XOFF_THRESH_MASK 0xffff 311 #define RDMA_XOFF_THRESH_SHIFT 16 312 313 #define RDMA_READ_PTR_HI 0x1038 314 #define RDMA_READ_PTR_LO 0x103c 315 316 #define RDMA_OVERRIDE 0x1040 317 #define RDMA_LE_MODE (1 << 0) 318 #define RDMA_REG_MODE (1 << 1) 319 320 #define RDMA_TEST 0x1044 321 #define RDMA_TP_OUT_SEL (1 << 0) 322 #define RDMA_MEM_SEL (1 << 1) 323 324 #define RDMA_DEBUG 0x1048 325 326 /* Transmit DMA offset and defines */ 327 #define TDMA_NUM_RINGS 32 /* rings = queues */ 328 #define TDMA_PORT_SIZE DESC_SIZE /* two 32-bits words */ 329 330 #define SYS_PORT_TDMA_OFFSET 0x4000 331 #define TDMA_WRITE_PORT_OFFSET 0x0000 332 #define TDMA_WRITE_PORT_HI(i) (TDMA_WRITE_PORT_OFFSET + \ 333 (i) * TDMA_PORT_SIZE) 334 #define TDMA_WRITE_PORT_LO(i) (TDMA_WRITE_PORT_OFFSET + \ 335 sizeof(u32) + (i) * TDMA_PORT_SIZE) 336 337 #define TDMA_READ_PORT_OFFSET (TDMA_WRITE_PORT_OFFSET + \ 338 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 339 #define TDMA_READ_PORT_HI(i) (TDMA_READ_PORT_OFFSET + \ 340 (i) * TDMA_PORT_SIZE) 341 #define TDMA_READ_PORT_LO(i) (TDMA_READ_PORT_OFFSET + \ 342 sizeof(u32) + (i) * TDMA_PORT_SIZE) 343 344 #define TDMA_READ_PORT_CMD_OFFSET (TDMA_READ_PORT_OFFSET + \ 345 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 346 #define TDMA_READ_PORT_CMD(i) (TDMA_READ_PORT_CMD_OFFSET + \ 347 (i) * sizeof(u32)) 348 349 #define TDMA_DESC_RING_00_BASE (TDMA_READ_PORT_CMD_OFFSET + \ 350 (TDMA_NUM_RINGS * sizeof(u32))) 351 352 /* Register offsets and defines relatives to a specific ring number */ 353 #define RING_HEAD_TAIL_PTR 0x00 354 #define RING_HEAD_MASK 0x7ff 355 #define RING_TAIL_SHIFT 11 356 #define RING_TAIL_MASK 0x7ff 357 #define RING_FLUSH (1 << 24) 358 #define RING_EN (1 << 25) 359 360 #define RING_COUNT 0x04 361 #define RING_COUNT_MASK 0x7ff 362 #define RING_BUFF_DONE_SHIFT 11 363 #define RING_BUFF_DONE_MASK 0x7ff 364 365 #define RING_MAX_HYST 0x08 366 #define RING_MAX_THRESH_MASK 0x7ff 367 #define RING_HYST_THRESH_SHIFT 11 368 #define RING_HYST_THRESH_MASK 0x7ff 369 370 #define RING_INTR_CONTROL 0x0c 371 #define RING_INTR_THRESH_MASK 0x7ff 372 #define RING_EMPTY_INTR_EN (1 << 15) 373 #define RING_TIMEOUT_SHIFT 16 374 #define RING_TIMEOUT_MASK 0xffff 375 376 #define RING_PROD_CONS_INDEX 0x10 377 #define RING_PROD_INDEX_MASK 0xffff 378 #define RING_CONS_INDEX_SHIFT 16 379 #define RING_CONS_INDEX_MASK 0xffff 380 381 #define RING_MAPPING 0x14 382 #define RING_QID_MASK 0x7 383 #define RING_PORT_ID_SHIFT 3 384 #define RING_PORT_ID_MASK 0x7 385 #define RING_IGNORE_STATUS (1 << 6) 386 #define RING_FAILOVER_EN (1 << 7) 387 #define RING_CREDIT_SHIFT 8 388 #define RING_CREDIT_MASK 0xffff 389 390 #define RING_PCP_DEI_VID 0x18 391 #define RING_VID_MASK 0x7ff 392 #define RING_DEI (1 << 12) 393 #define RING_PCP_SHIFT 13 394 #define RING_PCP_MASK 0x7 395 #define RING_PKT_SIZE_ADJ_SHIFT 16 396 #define RING_PKT_SIZE_ADJ_MASK 0xf 397 398 #define TDMA_DESC_RING_SIZE 28 399 400 /* Defininition for a given TX ring base address */ 401 #define TDMA_DESC_RING_BASE(i) (TDMA_DESC_RING_00_BASE + \ 402 ((i) * TDMA_DESC_RING_SIZE)) 403 404 /* Ring indexed register addreses */ 405 #define TDMA_DESC_RING_HEAD_TAIL_PTR(i) (TDMA_DESC_RING_BASE(i) + \ 406 RING_HEAD_TAIL_PTR) 407 #define TDMA_DESC_RING_COUNT(i) (TDMA_DESC_RING_BASE(i) + \ 408 RING_COUNT) 409 #define TDMA_DESC_RING_MAX_HYST(i) (TDMA_DESC_RING_BASE(i) + \ 410 RING_MAX_HYST) 411 #define TDMA_DESC_RING_INTR_CONTROL(i) (TDMA_DESC_RING_BASE(i) + \ 412 RING_INTR_CONTROL) 413 #define TDMA_DESC_RING_PROD_CONS_INDEX(i) \ 414 (TDMA_DESC_RING_BASE(i) + \ 415 RING_PROD_CONS_INDEX) 416 #define TDMA_DESC_RING_MAPPING(i) (TDMA_DESC_RING_BASE(i) + \ 417 RING_MAPPING) 418 #define TDMA_DESC_RING_PCP_DEI_VID(i) (TDMA_DESC_RING_BASE(i) + \ 419 RING_PCP_DEI_VID) 420 421 #define TDMA_CONTROL 0x600 422 #define TDMA_EN 0 423 #define TSB_EN 1 424 /* Uses 2 bits on SYSTEMPORT Lite and shifts everything by 1 bit, we 425 * keep the SYSTEMPORT layout here and adjust with tdma_control_bit() 426 */ 427 #define TSB_SWAP0 2 428 #define TSB_SWAP1 3 429 #define ACB_ALGO 3 430 #define BUF_DATA_OFFSET_SHIFT 4 431 #define BUF_DATA_OFFSET_MASK 0x3ff 432 #define VLAN_EN 14 433 #define SW_BRCM_TAG 15 434 #define WNC_KPT_SIZE_UPDATE 16 435 #define SYNC_PKT_SIZE 17 436 #define ACH_TXDONE_DELAY_SHIFT 18 437 #define ACH_TXDONE_DELAY_MASK 0xff 438 439 #define TDMA_STATUS 0x604 440 #define TDMA_DISABLED (1 << 0) 441 #define TDMA_LL_RAM_INIT_BUSY (1 << 1) 442 443 #define TDMA_SCB_BURST_SIZE 0x608 444 #define TDMA_OVER_MAX_THRESH_STATUS 0x60c 445 #define TDMA_OVER_HYST_THRESH_STATUS 0x610 446 #define TDMA_TPID 0x614 447 448 #define TDMA_FREE_LIST_HEAD_TAIL_PTR 0x618 449 #define TDMA_FREE_HEAD_MASK 0x7ff 450 #define TDMA_FREE_TAIL_SHIFT 11 451 #define TDMA_FREE_TAIL_MASK 0x7ff 452 453 #define TDMA_FREE_LIST_COUNT 0x61c 454 #define TDMA_FREE_LIST_COUNT_MASK 0x7ff 455 456 #define TDMA_TIER2_ARB_CTRL 0x620 457 #define TDMA_ARB_MODE_RR 0 458 #define TDMA_ARB_MODE_WEIGHT_RR 0x1 459 #define TDMA_ARB_MODE_STRICT 0x2 460 #define TDMA_ARB_MODE_DEFICIT_RR 0x3 461 #define TDMA_CREDIT_SHIFT 4 462 #define TDMA_CREDIT_MASK 0xffff 463 464 #define TDMA_TIER1_ARB_0_CTRL 0x624 465 #define TDMA_ARB_EN (1 << 0) 466 467 #define TDMA_TIER1_ARB_0_QUEUE_EN 0x628 468 #define TDMA_TIER1_ARB_1_CTRL 0x62c 469 #define TDMA_TIER1_ARB_1_QUEUE_EN 0x630 470 #define TDMA_TIER1_ARB_2_CTRL 0x634 471 #define TDMA_TIER1_ARB_2_QUEUE_EN 0x638 472 #define TDMA_TIER1_ARB_3_CTRL 0x63c 473 #define TDMA_TIER1_ARB_3_QUEUE_EN 0x640 474 475 #define TDMA_SCB_ENDIAN_OVERRIDE 0x644 476 #define TDMA_LE_MODE (1 << 0) 477 #define TDMA_REG_MODE (1 << 1) 478 479 #define TDMA_TEST 0x648 480 #define TDMA_TP_OUT_SEL (1 << 0) 481 #define TDMA_MEM_TM (1 << 1) 482 483 #define TDMA_DEBUG 0x64c 484 485 /* Number of Receive hardware descriptor words */ 486 #define SP_NUM_HW_RX_DESC_WORDS 1024 487 #define SP_LT_NUM_HW_RX_DESC_WORDS 256 488 489 /* Internal linked-list RAM size */ 490 #define SP_NUM_TX_DESC 1536 491 #define SP_LT_NUM_TX_DESC 256 492 493 #define WORDS_PER_DESC 2 494 495 /* Rx/Tx common counter group.*/ 496 struct bcm_sysport_pkt_counters { 497 u32 cnt_64; /* RO Received/Transmited 64 bytes packet */ 498 u32 cnt_127; /* RO Rx/Tx 127 bytes packet */ 499 u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */ 500 u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */ 501 u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */ 502 u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */ 503 u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */ 504 u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/ 505 u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/ 506 u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/ 507 }; 508 509 /* RSV, Receive Status Vector */ 510 struct bcm_sysport_rx_counters { 511 struct bcm_sysport_pkt_counters pkt_cnt; 512 u32 pkt; /* RO (0x428) Received pkt count*/ 513 u32 bytes; /* RO Received byte count */ 514 u32 mca; /* RO # of Received multicast pkt */ 515 u32 bca; /* RO # of Receive broadcast pkt */ 516 u32 fcs; /* RO # of Received FCS error */ 517 u32 cf; /* RO # of Received control frame pkt*/ 518 u32 pf; /* RO # of Received pause frame pkt */ 519 u32 uo; /* RO # of unknown op code pkt */ 520 u32 aln; /* RO # of alignment error count */ 521 u32 flr; /* RO # of frame length out of range count */ 522 u32 cde; /* RO # of code error pkt */ 523 u32 fcr; /* RO # of carrier sense error pkt */ 524 u32 ovr; /* RO # of oversize pkt*/ 525 u32 jbr; /* RO # of jabber count */ 526 u32 mtue; /* RO # of MTU error pkt*/ 527 u32 pok; /* RO # of Received good pkt */ 528 u32 uc; /* RO # of unicast pkt */ 529 u32 ppp; /* RO # of PPP pkt */ 530 u32 rcrc; /* RO (0x470),# of CRC match pkt */ 531 }; 532 533 /* TSV, Transmit Status Vector */ 534 struct bcm_sysport_tx_counters { 535 struct bcm_sysport_pkt_counters pkt_cnt; 536 u32 pkts; /* RO (0x4a8) Transmited pkt */ 537 u32 mca; /* RO # of xmited multicast pkt */ 538 u32 bca; /* RO # of xmited broadcast pkt */ 539 u32 pf; /* RO # of xmited pause frame count */ 540 u32 cf; /* RO # of xmited control frame count */ 541 u32 fcs; /* RO # of xmited FCS error count */ 542 u32 ovr; /* RO # of xmited oversize pkt */ 543 u32 drf; /* RO # of xmited deferral pkt */ 544 u32 edf; /* RO # of xmited Excessive deferral pkt*/ 545 u32 scl; /* RO # of xmited single collision pkt */ 546 u32 mcl; /* RO # of xmited multiple collision pkt*/ 547 u32 lcl; /* RO # of xmited late collision pkt */ 548 u32 ecl; /* RO # of xmited excessive collision pkt*/ 549 u32 frg; /* RO # of xmited fragments pkt*/ 550 u32 ncl; /* RO # of xmited total collision count */ 551 u32 jbr; /* RO # of xmited jabber count*/ 552 u32 bytes; /* RO # of xmited byte count */ 553 u32 pok; /* RO # of xmited good pkt */ 554 u32 uc; /* RO (0x4f0) # of xmited unicast pkt */ 555 }; 556 557 struct bcm_sysport_mib { 558 struct bcm_sysport_rx_counters rx; 559 struct bcm_sysport_tx_counters tx; 560 u32 rx_runt_cnt; 561 u32 rx_runt_fcs; 562 u32 rx_runt_fcs_align; 563 u32 rx_runt_bytes; 564 u32 rxchk_bad_csum; 565 u32 rxchk_other_pkt_disc; 566 u32 rbuf_ovflow_cnt; 567 u32 rbuf_err_cnt; 568 u32 alloc_rx_buff_failed; 569 u32 rx_dma_failed; 570 u32 tx_dma_failed; 571 u32 tx_realloc_tsb; 572 u32 tx_realloc_tsb_failed; 573 }; 574 575 /* HW maintains a large list of counters */ 576 enum bcm_sysport_stat_type { 577 BCM_SYSPORT_STAT_NETDEV = -1, 578 BCM_SYSPORT_STAT_NETDEV64, 579 BCM_SYSPORT_STAT_MIB_RX, 580 BCM_SYSPORT_STAT_MIB_TX, 581 BCM_SYSPORT_STAT_RUNT, 582 BCM_SYSPORT_STAT_RXCHK, 583 BCM_SYSPORT_STAT_RBUF, 584 BCM_SYSPORT_STAT_SOFT, 585 }; 586 587 /* Macros to help define ethtool statistics */ 588 #define STAT_NETDEV(m) { \ 589 .stat_string = __stringify(m), \ 590 .stat_sizeof = sizeof(((struct net_device_stats *)0)->m), \ 591 .stat_offset = offsetof(struct net_device_stats, m), \ 592 .type = BCM_SYSPORT_STAT_NETDEV, \ 593 } 594 595 #define STAT_NETDEV64(m) { \ 596 .stat_string = __stringify(m), \ 597 .stat_sizeof = sizeof(((struct bcm_sysport_stats64 *)0)->m), \ 598 .stat_offset = offsetof(struct bcm_sysport_stats64, m), \ 599 .type = BCM_SYSPORT_STAT_NETDEV64, \ 600 } 601 602 #define STAT_MIB(str, m, _type) { \ 603 .stat_string = str, \ 604 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 605 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 606 .type = _type, \ 607 } 608 609 #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX) 610 #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX) 611 #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT) 612 #define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT) 613 614 #define STAT_RXCHK(str, m, ofs) { \ 615 .stat_string = str, \ 616 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 617 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 618 .type = BCM_SYSPORT_STAT_RXCHK, \ 619 .reg_offset = ofs, \ 620 } 621 622 #define STAT_RBUF(str, m, ofs) { \ 623 .stat_string = str, \ 624 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 625 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 626 .type = BCM_SYSPORT_STAT_RBUF, \ 627 .reg_offset = ofs, \ 628 } 629 630 /* TX bytes and packets */ 631 #define NUM_SYSPORT_TXQ_STAT 2 632 633 struct bcm_sysport_stats { 634 char stat_string[ETH_GSTRING_LEN]; 635 int stat_sizeof; 636 int stat_offset; 637 enum bcm_sysport_stat_type type; 638 /* reg offset from UMAC base for misc counters */ 639 u16 reg_offset; 640 }; 641 642 struct bcm_sysport_stats64 { 643 /* 64bit stats on 32bit/64bit Machine */ 644 u64 rx_packets; 645 u64 rx_bytes; 646 u64 tx_packets; 647 u64 tx_bytes; 648 }; 649 650 /* Software house keeping helper structure */ 651 struct bcm_sysport_cb { 652 struct sk_buff *skb; /* SKB for RX packets */ 653 void __iomem *bd_addr; /* Buffer descriptor PHYS addr */ 654 655 DEFINE_DMA_UNMAP_ADDR(dma_addr); 656 DEFINE_DMA_UNMAP_LEN(dma_len); 657 }; 658 659 enum bcm_sysport_type { 660 SYSTEMPORT = 0, 661 SYSTEMPORT_LITE, 662 }; 663 664 struct bcm_sysport_hw_params { 665 bool is_lite; 666 unsigned int num_rx_desc_words; 667 }; 668 669 struct bcm_sysport_net_dim { 670 u16 use_dim; 671 u16 event_ctr; 672 unsigned long packets; 673 unsigned long bytes; 674 struct dim dim; 675 }; 676 677 /* Software view of the TX ring */ 678 struct bcm_sysport_tx_ring { 679 spinlock_t lock; /* Ring lock for tx reclaim/xmit */ 680 struct napi_struct napi; /* NAPI per tx queue */ 681 unsigned int index; /* Ring index */ 682 unsigned int size; /* Ring current size */ 683 unsigned int alloc_size; /* Ring one-time allocated size */ 684 unsigned int desc_count; /* Number of descriptors */ 685 unsigned int curr_desc; /* Current descriptor */ 686 unsigned int c_index; /* Last consumer index */ 687 unsigned int clean_index; /* Current clean index */ 688 struct bcm_sysport_cb *cbs; /* Transmit control blocks */ 689 struct bcm_sysport_priv *priv; /* private context backpointer */ 690 unsigned long packets; /* packets statistics */ 691 unsigned long bytes; /* bytes statistics */ 692 unsigned int switch_queue; /* switch port queue number */ 693 unsigned int switch_port; /* switch port queue number */ 694 bool inspect; /* inspect switch port and queue */ 695 }; 696 697 /* Driver private structure */ 698 struct bcm_sysport_priv { 699 void __iomem *base; 700 u32 irq0_stat; 701 u32 irq0_mask; 702 u32 irq1_stat; 703 u32 irq1_mask; 704 bool is_lite; 705 unsigned int num_rx_desc_words; 706 struct napi_struct napi ____cacheline_aligned; 707 struct net_device *netdev; 708 struct platform_device *pdev; 709 int irq0; 710 int irq1; 711 int wol_irq; 712 713 /* Transmit rings */ 714 spinlock_t desc_lock; 715 struct bcm_sysport_tx_ring *tx_rings; 716 717 /* Receive queue */ 718 void __iomem *rx_bds; 719 struct bcm_sysport_cb *rx_cbs; 720 unsigned int num_rx_bds; 721 unsigned int rx_read_ptr; 722 unsigned int rx_c_index; 723 724 struct bcm_sysport_net_dim dim; 725 u32 rx_max_coalesced_frames; 726 u32 rx_coalesce_usecs; 727 728 /* PHY device */ 729 struct device_node *phy_dn; 730 phy_interface_t phy_interface; 731 int old_pause; 732 int old_link; 733 int old_duplex; 734 735 /* Misc fields */ 736 unsigned int rx_chk_en:1; 737 unsigned int tsb_en:1; 738 unsigned int crc_fwd:1; 739 u16 rev; 740 u32 wolopts; 741 u8 sopass[SOPASS_MAX]; 742 unsigned int wol_irq_disabled:1; 743 struct clk *clk; 744 struct clk *wol_clk; 745 746 /* MIB related fields */ 747 struct bcm_sysport_mib mib; 748 749 /* Ethtool */ 750 u32 msg_enable; 751 DECLARE_BITMAP(filters, RXCHK_BRCM_TAG_MAX); 752 u32 filters_loc[RXCHK_BRCM_TAG_MAX]; 753 754 struct bcm_sysport_stats64 stats64; 755 756 /* For atomic update generic 64bit value on 32bit Machine */ 757 struct u64_stats_sync syncp; 758 759 /* map information between switch port queues and local queues */ 760 struct notifier_block netdev_notifier; 761 unsigned int per_port_num_tx_queues; 762 struct bcm_sysport_tx_ring *ring_map[DSA_MAX_PORTS * 8]; 763 764 }; 765 #endif /* __BCM_SYSPORT_H */ 766