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 #include <linux/net_dim.h> 16 17 /* Receive/transmit descriptor format */ 18 #define DESC_ADDR_HI_STATUS_LEN 0x00 19 #define DESC_ADDR_HI_SHIFT 0 20 #define DESC_ADDR_HI_MASK 0xff 21 #define DESC_STATUS_SHIFT 8 22 #define DESC_STATUS_MASK 0x3ff 23 #define DESC_LEN_SHIFT 18 24 #define DESC_LEN_MASK 0x7fff 25 #define DESC_ADDR_LO 0x04 26 27 /* HW supports 40-bit addressing hence the */ 28 #define DESC_SIZE (WORDS_PER_DESC * sizeof(u32)) 29 30 /* Default RX buffer allocation size */ 31 #define RX_BUF_LENGTH 2048 32 33 /* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(4) + FCS(4) = 1526. 34 * 1536 is multiple of 256 bytes 35 */ 36 #define ENET_BRCM_TAG_LEN 4 37 #define ENET_PAD 10 38 #define UMAC_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \ 39 ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD) 40 41 /* Transmit status block */ 42 struct bcm_tsb { 43 u32 pcp_dei_vid; 44 #define PCP_DEI_MASK 0xf 45 #define VID_SHIFT 4 46 #define VID_MASK 0xfff 47 u32 l4_ptr_dest_map; 48 #define L4_CSUM_PTR_MASK 0x1ff 49 #define L4_PTR_SHIFT 9 50 #define L4_PTR_MASK 0x1ff 51 #define L4_UDP (1 << 18) 52 #define L4_LENGTH_VALID (1 << 19) 53 #define DEST_MAP_SHIFT 20 54 #define DEST_MAP_MASK 0x1ff 55 }; 56 57 /* Receive status block uses the same 58 * definitions as the DMA descriptor 59 */ 60 struct bcm_rsb { 61 u32 rx_status_len; 62 u32 brcm_egress_tag; 63 }; 64 65 /* Common Receive/Transmit status bits */ 66 #define DESC_L4_CSUM (1 << 7) 67 #define DESC_SOP (1 << 8) 68 #define DESC_EOP (1 << 9) 69 70 /* Receive Status bits */ 71 #define RX_STATUS_UCAST 0 72 #define RX_STATUS_BCAST 0x04 73 #define RX_STATUS_MCAST 0x08 74 #define RX_STATUS_L2_MCAST 0x0c 75 #define RX_STATUS_ERR (1 << 4) 76 #define RX_STATUS_OVFLOW (1 << 5) 77 #define RX_STATUS_PARSE_FAIL (1 << 6) 78 79 /* Transmit Status bits */ 80 #define TX_STATUS_VLAN_NO_ACT 0x00 81 #define TX_STATUS_VLAN_PCP_TSB 0x01 82 #define TX_STATUS_VLAN_QUEUE 0x02 83 #define TX_STATUS_VLAN_VID_TSB 0x03 84 #define TX_STATUS_OWR_CRC (1 << 2) 85 #define TX_STATUS_APP_CRC (1 << 3) 86 #define TX_STATUS_BRCM_TAG_NO_ACT 0 87 #define TX_STATUS_BRCM_TAG_ZERO 0x10 88 #define TX_STATUS_BRCM_TAG_ONE_QUEUE 0x20 89 #define TX_STATUS_BRCM_TAG_ONE_TSB 0x30 90 #define TX_STATUS_SKIP_BYTES (1 << 6) 91 92 /* Specific register definitions */ 93 #define SYS_PORT_TOPCTRL_OFFSET 0 94 #define REV_CNTL 0x00 95 #define REV_MASK 0xffff 96 97 #define RX_FLUSH_CNTL 0x04 98 #define RX_FLUSH (1 << 0) 99 100 #define TX_FLUSH_CNTL 0x08 101 #define TX_FLUSH (1 << 0) 102 103 #define MISC_CNTL 0x0c 104 #define SYS_CLK_SEL (1 << 0) 105 #define TDMA_EOP_SEL (1 << 1) 106 107 /* Level-2 Interrupt controller offsets and defines */ 108 #define SYS_PORT_INTRL2_0_OFFSET 0x200 109 #define SYS_PORT_INTRL2_1_OFFSET 0x240 110 #define INTRL2_CPU_STATUS 0x00 111 #define INTRL2_CPU_SET 0x04 112 #define INTRL2_CPU_CLEAR 0x08 113 #define INTRL2_CPU_MASK_STATUS 0x0c 114 #define INTRL2_CPU_MASK_SET 0x10 115 #define INTRL2_CPU_MASK_CLEAR 0x14 116 117 /* Level-2 instance 0 interrupt bits */ 118 #define INTRL2_0_GISB_ERR (1 << 0) 119 #define INTRL2_0_RBUF_OVFLOW (1 << 1) 120 #define INTRL2_0_TBUF_UNDFLOW (1 << 2) 121 #define INTRL2_0_MPD (1 << 3) 122 #define INTRL2_0_BRCM_MATCH_TAG (1 << 4) 123 #define INTRL2_0_RDMA_MBDONE (1 << 5) 124 #define INTRL2_0_OVER_MAX_THRESH (1 << 6) 125 #define INTRL2_0_BELOW_HYST_THRESH (1 << 7) 126 #define INTRL2_0_FREE_LIST_EMPTY (1 << 8) 127 #define INTRL2_0_TX_RING_FULL (1 << 9) 128 #define INTRL2_0_DESC_ALLOC_ERR (1 << 10) 129 #define INTRL2_0_UNEXP_PKTSIZE_ACK (1 << 11) 130 131 /* SYSTEMPORT Lite groups the TX queues interrupts on instance 0 */ 132 #define INTRL2_0_TDMA_MBDONE_SHIFT 12 133 #define INTRL2_0_TDMA_MBDONE_MASK (0xffff << INTRL2_0_TDMA_MBDONE_SHIFT) 134 135 /* RXCHK offset and defines */ 136 #define SYS_PORT_RXCHK_OFFSET 0x300 137 138 #define RXCHK_CONTROL 0x00 139 #define RXCHK_EN (1 << 0) 140 #define RXCHK_SKIP_FCS (1 << 1) 141 #define RXCHK_BAD_CSUM_DIS (1 << 2) 142 #define RXCHK_BRCM_TAG_EN (1 << 3) 143 #define RXCHK_BRCM_TAG_MATCH_SHIFT 4 144 #define RXCHK_BRCM_TAG_MATCH_MASK 0xff 145 #define RXCHK_PARSE_TNL (1 << 12) 146 #define RXCHK_VIOL_EN (1 << 13) 147 #define RXCHK_VIOL_DIS (1 << 14) 148 #define RXCHK_INCOM_PKT (1 << 15) 149 #define RXCHK_V6_DUPEXT_EN (1 << 16) 150 #define RXCHK_V6_DUPEXT_DIS (1 << 17) 151 #define RXCHK_ETHERTYPE_DIS (1 << 18) 152 #define RXCHK_L2_HDR_DIS (1 << 19) 153 #define RXCHK_L3_HDR_DIS (1 << 20) 154 #define RXCHK_MAC_RX_ERR_DIS (1 << 21) 155 #define RXCHK_PARSE_AUTH (1 << 22) 156 157 #define RXCHK_BRCM_TAG0 0x04 158 #define RXCHK_BRCM_TAG(i) ((i) * RXCHK_BRCM_TAG0) 159 #define RXCHK_BRCM_TAG0_MASK 0x24 160 #define RXCHK_BRCM_TAG_MASK(i) ((i) * RXCHK_BRCM_TAG0_MASK) 161 #define RXCHK_BRCM_TAG_MATCH_STATUS 0x44 162 #define RXCHK_ETHERTYPE 0x48 163 #define RXCHK_BAD_CSUM_CNTR 0x4C 164 #define RXCHK_OTHER_DISC_CNTR 0x50 165 166 /* TXCHCK offsets and defines */ 167 #define SYS_PORT_TXCHK_OFFSET 0x380 168 #define TXCHK_PKT_RDY_THRESH 0x00 169 170 /* Receive buffer offset and defines */ 171 #define SYS_PORT_RBUF_OFFSET 0x400 172 173 #define RBUF_CONTROL 0x00 174 #define RBUF_RSB_EN (1 << 0) 175 #define RBUF_4B_ALGN (1 << 1) 176 #define RBUF_BRCM_TAG_STRIP (1 << 2) 177 #define RBUF_BAD_PKT_DISC (1 << 3) 178 #define RBUF_RESUME_THRESH_SHIFT 4 179 #define RBUF_RESUME_THRESH_MASK 0xff 180 #define RBUF_OK_TO_SEND_SHIFT 12 181 #define RBUF_OK_TO_SEND_MASK 0xff 182 #define RBUF_CRC_REPLACE (1 << 20) 183 #define RBUF_OK_TO_SEND_MODE (1 << 21) 184 /* SYSTEMPORT Lite uses two bits here */ 185 #define RBUF_RSB_SWAP0 (1 << 22) 186 #define RBUF_RSB_SWAP1 (1 << 23) 187 #define RBUF_ACPI_EN (1 << 23) 188 189 #define RBUF_PKT_RDY_THRESH 0x04 190 191 #define RBUF_STATUS 0x08 192 #define RBUF_WOL_MODE (1 << 0) 193 #define RBUF_MPD (1 << 1) 194 #define RBUF_ACPI (1 << 2) 195 196 #define RBUF_OVFL_DISC_CNTR 0x0c 197 #define RBUF_ERR_PKT_CNTR 0x10 198 199 /* Transmit buffer offset and defines */ 200 #define SYS_PORT_TBUF_OFFSET 0x600 201 202 #define TBUF_CONTROL 0x00 203 #define TBUF_BP_EN (1 << 0) 204 #define TBUF_MAX_PKT_THRESH_SHIFT 1 205 #define TBUF_MAX_PKT_THRESH_MASK 0x1f 206 #define TBUF_FULL_THRESH_SHIFT 8 207 #define TBUF_FULL_THRESH_MASK 0x1f 208 209 /* UniMAC offset and defines */ 210 #define SYS_PORT_UMAC_OFFSET 0x800 211 212 #define UMAC_CMD 0x008 213 #define CMD_TX_EN (1 << 0) 214 #define CMD_RX_EN (1 << 1) 215 #define CMD_SPEED_SHIFT 2 216 #define CMD_SPEED_10 0 217 #define CMD_SPEED_100 1 218 #define CMD_SPEED_1000 2 219 #define CMD_SPEED_2500 3 220 #define CMD_SPEED_MASK 3 221 #define CMD_PROMISC (1 << 4) 222 #define CMD_PAD_EN (1 << 5) 223 #define CMD_CRC_FWD (1 << 6) 224 #define CMD_PAUSE_FWD (1 << 7) 225 #define CMD_RX_PAUSE_IGNORE (1 << 8) 226 #define CMD_TX_ADDR_INS (1 << 9) 227 #define CMD_HD_EN (1 << 10) 228 #define CMD_SW_RESET (1 << 13) 229 #define CMD_LCL_LOOP_EN (1 << 15) 230 #define CMD_AUTO_CONFIG (1 << 22) 231 #define CMD_CNTL_FRM_EN (1 << 23) 232 #define CMD_NO_LEN_CHK (1 << 24) 233 #define CMD_RMT_LOOP_EN (1 << 25) 234 #define CMD_PRBL_EN (1 << 27) 235 #define CMD_TX_PAUSE_IGNORE (1 << 28) 236 #define CMD_TX_RX_EN (1 << 29) 237 #define CMD_RUNT_FILTER_DIS (1 << 30) 238 239 #define UMAC_MAC0 0x00c 240 #define UMAC_MAC1 0x010 241 #define UMAC_MAX_FRAME_LEN 0x014 242 243 #define UMAC_TX_FLUSH 0x334 244 245 #define UMAC_MIB_START 0x400 246 247 /* There is a 0xC gap between the end of RX and beginning of TX stats and then 248 * between the end of TX stats and the beginning of the RX RUNT 249 */ 250 #define UMAC_MIB_STAT_OFFSET 0xc 251 252 #define UMAC_MIB_CTRL 0x580 253 #define MIB_RX_CNT_RST (1 << 0) 254 #define MIB_RUNT_CNT_RST (1 << 1) 255 #define MIB_TX_CNT_RST (1 << 2) 256 257 /* These offsets are valid for SYSTEMPORT and SYSTEMPORT Lite */ 258 #define UMAC_MPD_CTRL 0x620 259 #define MPD_EN (1 << 0) 260 #define MSEQ_LEN_SHIFT 16 261 #define MSEQ_LEN_MASK 0xff 262 #define PSW_EN (1 << 27) 263 264 #define UMAC_PSW_MS 0x624 265 #define UMAC_PSW_LS 0x628 266 #define UMAC_MDF_CTRL 0x650 267 #define UMAC_MDF_ADDR 0x654 268 269 /* Only valid on SYSTEMPORT Lite */ 270 #define SYS_PORT_GIB_OFFSET 0x1000 271 272 #define GIB_CONTROL 0x00 273 #define GIB_TX_EN (1 << 0) 274 #define GIB_RX_EN (1 << 1) 275 #define GIB_TX_FLUSH (1 << 2) 276 #define GIB_RX_FLUSH (1 << 3) 277 #define GIB_GTX_CLK_SEL_SHIFT 4 278 #define GIB_GTX_CLK_EXT_CLK (0 << GIB_GTX_CLK_SEL_SHIFT) 279 #define GIB_GTX_CLK_125MHZ (1 << GIB_GTX_CLK_SEL_SHIFT) 280 #define GIB_GTX_CLK_250MHZ (2 << GIB_GTX_CLK_SEL_SHIFT) 281 #define GIB_FCS_STRIP (1 << 6) 282 #define GIB_LCL_LOOP_EN (1 << 7) 283 #define GIB_LCL_LOOP_TXEN (1 << 8) 284 #define GIB_RMT_LOOP_EN (1 << 9) 285 #define GIB_RMT_LOOP_RXEN (1 << 10) 286 #define GIB_RX_PAUSE_EN (1 << 11) 287 #define GIB_PREAMBLE_LEN_SHIFT 12 288 #define GIB_PREAMBLE_LEN_MASK 0xf 289 #define GIB_IPG_LEN_SHIFT 16 290 #define GIB_IPG_LEN_MASK 0x3f 291 #define GIB_PAD_EXTENSION_SHIFT 22 292 #define GIB_PAD_EXTENSION_MASK 0x3f 293 294 #define GIB_MAC1 0x08 295 #define GIB_MAC0 0x0c 296 297 /* Receive DMA offset and defines */ 298 #define SYS_PORT_RDMA_OFFSET 0x2000 299 300 #define RDMA_CONTROL 0x1000 301 #define RDMA_EN (1 << 0) 302 #define RDMA_RING_CFG (1 << 1) 303 #define RDMA_DISC_EN (1 << 2) 304 #define RDMA_BUF_DATA_OFFSET_SHIFT 4 305 #define RDMA_BUF_DATA_OFFSET_MASK 0x3ff 306 307 #define RDMA_STATUS 0x1004 308 #define RDMA_DISABLED (1 << 0) 309 #define RDMA_DESC_RAM_INIT_BUSY (1 << 1) 310 #define RDMA_BP_STATUS (1 << 2) 311 312 #define RDMA_SCB_BURST_SIZE 0x1008 313 314 #define RDMA_RING_BUF_SIZE 0x100c 315 #define RDMA_RING_SIZE_SHIFT 16 316 317 #define RDMA_WRITE_PTR_HI 0x1010 318 #define RDMA_WRITE_PTR_LO 0x1014 319 #define RDMA_PROD_INDEX 0x1018 320 #define RDMA_PROD_INDEX_MASK 0xffff 321 322 #define RDMA_CONS_INDEX 0x101c 323 #define RDMA_CONS_INDEX_MASK 0xffff 324 325 #define RDMA_START_ADDR_HI 0x1020 326 #define RDMA_START_ADDR_LO 0x1024 327 #define RDMA_END_ADDR_HI 0x1028 328 #define RDMA_END_ADDR_LO 0x102c 329 330 #define RDMA_MBDONE_INTR 0x1030 331 #define RDMA_INTR_THRESH_MASK 0x1ff 332 #define RDMA_TIMEOUT_SHIFT 16 333 #define RDMA_TIMEOUT_MASK 0xffff 334 335 #define RDMA_XON_XOFF_THRESH 0x1034 336 #define RDMA_XON_XOFF_THRESH_MASK 0xffff 337 #define RDMA_XOFF_THRESH_SHIFT 16 338 339 #define RDMA_READ_PTR_HI 0x1038 340 #define RDMA_READ_PTR_LO 0x103c 341 342 #define RDMA_OVERRIDE 0x1040 343 #define RDMA_LE_MODE (1 << 0) 344 #define RDMA_REG_MODE (1 << 1) 345 346 #define RDMA_TEST 0x1044 347 #define RDMA_TP_OUT_SEL (1 << 0) 348 #define RDMA_MEM_SEL (1 << 1) 349 350 #define RDMA_DEBUG 0x1048 351 352 /* Transmit DMA offset and defines */ 353 #define TDMA_NUM_RINGS 32 /* rings = queues */ 354 #define TDMA_PORT_SIZE DESC_SIZE /* two 32-bits words */ 355 356 #define SYS_PORT_TDMA_OFFSET 0x4000 357 #define TDMA_WRITE_PORT_OFFSET 0x0000 358 #define TDMA_WRITE_PORT_HI(i) (TDMA_WRITE_PORT_OFFSET + \ 359 (i) * TDMA_PORT_SIZE) 360 #define TDMA_WRITE_PORT_LO(i) (TDMA_WRITE_PORT_OFFSET + \ 361 sizeof(u32) + (i) * TDMA_PORT_SIZE) 362 363 #define TDMA_READ_PORT_OFFSET (TDMA_WRITE_PORT_OFFSET + \ 364 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 365 #define TDMA_READ_PORT_HI(i) (TDMA_READ_PORT_OFFSET + \ 366 (i) * TDMA_PORT_SIZE) 367 #define TDMA_READ_PORT_LO(i) (TDMA_READ_PORT_OFFSET + \ 368 sizeof(u32) + (i) * TDMA_PORT_SIZE) 369 370 #define TDMA_READ_PORT_CMD_OFFSET (TDMA_READ_PORT_OFFSET + \ 371 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 372 #define TDMA_READ_PORT_CMD(i) (TDMA_READ_PORT_CMD_OFFSET + \ 373 (i) * sizeof(u32)) 374 375 #define TDMA_DESC_RING_00_BASE (TDMA_READ_PORT_CMD_OFFSET + \ 376 (TDMA_NUM_RINGS * sizeof(u32))) 377 378 /* Register offsets and defines relatives to a specific ring number */ 379 #define RING_HEAD_TAIL_PTR 0x00 380 #define RING_HEAD_MASK 0x7ff 381 #define RING_TAIL_SHIFT 11 382 #define RING_TAIL_MASK 0x7ff 383 #define RING_FLUSH (1 << 24) 384 #define RING_EN (1 << 25) 385 386 #define RING_COUNT 0x04 387 #define RING_COUNT_MASK 0x7ff 388 #define RING_BUFF_DONE_SHIFT 11 389 #define RING_BUFF_DONE_MASK 0x7ff 390 391 #define RING_MAX_HYST 0x08 392 #define RING_MAX_THRESH_MASK 0x7ff 393 #define RING_HYST_THRESH_SHIFT 11 394 #define RING_HYST_THRESH_MASK 0x7ff 395 396 #define RING_INTR_CONTROL 0x0c 397 #define RING_INTR_THRESH_MASK 0x7ff 398 #define RING_EMPTY_INTR_EN (1 << 15) 399 #define RING_TIMEOUT_SHIFT 16 400 #define RING_TIMEOUT_MASK 0xffff 401 402 #define RING_PROD_CONS_INDEX 0x10 403 #define RING_PROD_INDEX_MASK 0xffff 404 #define RING_CONS_INDEX_SHIFT 16 405 #define RING_CONS_INDEX_MASK 0xffff 406 407 #define RING_MAPPING 0x14 408 #define RING_QID_MASK 0x7 409 #define RING_PORT_ID_SHIFT 3 410 #define RING_PORT_ID_MASK 0x7 411 #define RING_IGNORE_STATUS (1 << 6) 412 #define RING_FAILOVER_EN (1 << 7) 413 #define RING_CREDIT_SHIFT 8 414 #define RING_CREDIT_MASK 0xffff 415 416 #define RING_PCP_DEI_VID 0x18 417 #define RING_VID_MASK 0x7ff 418 #define RING_DEI (1 << 12) 419 #define RING_PCP_SHIFT 13 420 #define RING_PCP_MASK 0x7 421 #define RING_PKT_SIZE_ADJ_SHIFT 16 422 #define RING_PKT_SIZE_ADJ_MASK 0xf 423 424 #define TDMA_DESC_RING_SIZE 28 425 426 /* Defininition for a given TX ring base address */ 427 #define TDMA_DESC_RING_BASE(i) (TDMA_DESC_RING_00_BASE + \ 428 ((i) * TDMA_DESC_RING_SIZE)) 429 430 /* Ring indexed register addreses */ 431 #define TDMA_DESC_RING_HEAD_TAIL_PTR(i) (TDMA_DESC_RING_BASE(i) + \ 432 RING_HEAD_TAIL_PTR) 433 #define TDMA_DESC_RING_COUNT(i) (TDMA_DESC_RING_BASE(i) + \ 434 RING_COUNT) 435 #define TDMA_DESC_RING_MAX_HYST(i) (TDMA_DESC_RING_BASE(i) + \ 436 RING_MAX_HYST) 437 #define TDMA_DESC_RING_INTR_CONTROL(i) (TDMA_DESC_RING_BASE(i) + \ 438 RING_INTR_CONTROL) 439 #define TDMA_DESC_RING_PROD_CONS_INDEX(i) \ 440 (TDMA_DESC_RING_BASE(i) + \ 441 RING_PROD_CONS_INDEX) 442 #define TDMA_DESC_RING_MAPPING(i) (TDMA_DESC_RING_BASE(i) + \ 443 RING_MAPPING) 444 #define TDMA_DESC_RING_PCP_DEI_VID(i) (TDMA_DESC_RING_BASE(i) + \ 445 RING_PCP_DEI_VID) 446 447 #define TDMA_CONTROL 0x600 448 #define TDMA_EN 0 449 #define TSB_EN 1 450 /* Uses 2 bits on SYSTEMPORT Lite and shifts everything by 1 bit, we 451 * keep the SYSTEMPORT layout here and adjust with tdma_control_bit() 452 */ 453 #define TSB_SWAP0 2 454 #define TSB_SWAP1 3 455 #define ACB_ALGO 3 456 #define BUF_DATA_OFFSET_SHIFT 4 457 #define BUF_DATA_OFFSET_MASK 0x3ff 458 #define VLAN_EN 14 459 #define SW_BRCM_TAG 15 460 #define WNC_KPT_SIZE_UPDATE 16 461 #define SYNC_PKT_SIZE 17 462 #define ACH_TXDONE_DELAY_SHIFT 18 463 #define ACH_TXDONE_DELAY_MASK 0xff 464 465 #define TDMA_STATUS 0x604 466 #define TDMA_DISABLED (1 << 0) 467 #define TDMA_LL_RAM_INIT_BUSY (1 << 1) 468 469 #define TDMA_SCB_BURST_SIZE 0x608 470 #define TDMA_OVER_MAX_THRESH_STATUS 0x60c 471 #define TDMA_OVER_HYST_THRESH_STATUS 0x610 472 #define TDMA_TPID 0x614 473 474 #define TDMA_FREE_LIST_HEAD_TAIL_PTR 0x618 475 #define TDMA_FREE_HEAD_MASK 0x7ff 476 #define TDMA_FREE_TAIL_SHIFT 11 477 #define TDMA_FREE_TAIL_MASK 0x7ff 478 479 #define TDMA_FREE_LIST_COUNT 0x61c 480 #define TDMA_FREE_LIST_COUNT_MASK 0x7ff 481 482 #define TDMA_TIER2_ARB_CTRL 0x620 483 #define TDMA_ARB_MODE_RR 0 484 #define TDMA_ARB_MODE_WEIGHT_RR 0x1 485 #define TDMA_ARB_MODE_STRICT 0x2 486 #define TDMA_ARB_MODE_DEFICIT_RR 0x3 487 #define TDMA_CREDIT_SHIFT 4 488 #define TDMA_CREDIT_MASK 0xffff 489 490 #define TDMA_TIER1_ARB_0_CTRL 0x624 491 #define TDMA_ARB_EN (1 << 0) 492 493 #define TDMA_TIER1_ARB_0_QUEUE_EN 0x628 494 #define TDMA_TIER1_ARB_1_CTRL 0x62c 495 #define TDMA_TIER1_ARB_1_QUEUE_EN 0x630 496 #define TDMA_TIER1_ARB_2_CTRL 0x634 497 #define TDMA_TIER1_ARB_2_QUEUE_EN 0x638 498 #define TDMA_TIER1_ARB_3_CTRL 0x63c 499 #define TDMA_TIER1_ARB_3_QUEUE_EN 0x640 500 501 #define TDMA_SCB_ENDIAN_OVERRIDE 0x644 502 #define TDMA_LE_MODE (1 << 0) 503 #define TDMA_REG_MODE (1 << 1) 504 505 #define TDMA_TEST 0x648 506 #define TDMA_TP_OUT_SEL (1 << 0) 507 #define TDMA_MEM_TM (1 << 1) 508 509 #define TDMA_DEBUG 0x64c 510 511 /* Transmit/Receive descriptor */ 512 struct dma_desc { 513 u32 addr_status_len; 514 u32 addr_lo; 515 }; 516 517 /* Number of Receive hardware descriptor words */ 518 #define SP_NUM_HW_RX_DESC_WORDS 1024 519 #define SP_LT_NUM_HW_RX_DESC_WORDS 256 520 521 /* Internal linked-list RAM size */ 522 #define SP_NUM_TX_DESC 1536 523 #define SP_LT_NUM_TX_DESC 256 524 525 #define WORDS_PER_DESC (sizeof(struct dma_desc) / sizeof(u32)) 526 527 /* Rx/Tx common counter group.*/ 528 struct bcm_sysport_pkt_counters { 529 u32 cnt_64; /* RO Received/Transmited 64 bytes packet */ 530 u32 cnt_127; /* RO Rx/Tx 127 bytes packet */ 531 u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */ 532 u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */ 533 u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */ 534 u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */ 535 u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */ 536 u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/ 537 u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/ 538 u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/ 539 }; 540 541 /* RSV, Receive Status Vector */ 542 struct bcm_sysport_rx_counters { 543 struct bcm_sysport_pkt_counters pkt_cnt; 544 u32 pkt; /* RO (0x428) Received pkt count*/ 545 u32 bytes; /* RO Received byte count */ 546 u32 mca; /* RO # of Received multicast pkt */ 547 u32 bca; /* RO # of Receive broadcast pkt */ 548 u32 fcs; /* RO # of Received FCS error */ 549 u32 cf; /* RO # of Received control frame pkt*/ 550 u32 pf; /* RO # of Received pause frame pkt */ 551 u32 uo; /* RO # of unknown op code pkt */ 552 u32 aln; /* RO # of alignment error count */ 553 u32 flr; /* RO # of frame length out of range count */ 554 u32 cde; /* RO # of code error pkt */ 555 u32 fcr; /* RO # of carrier sense error pkt */ 556 u32 ovr; /* RO # of oversize pkt*/ 557 u32 jbr; /* RO # of jabber count */ 558 u32 mtue; /* RO # of MTU error pkt*/ 559 u32 pok; /* RO # of Received good pkt */ 560 u32 uc; /* RO # of unicast pkt */ 561 u32 ppp; /* RO # of PPP pkt */ 562 u32 rcrc; /* RO (0x470),# of CRC match pkt */ 563 }; 564 565 /* TSV, Transmit Status Vector */ 566 struct bcm_sysport_tx_counters { 567 struct bcm_sysport_pkt_counters pkt_cnt; 568 u32 pkts; /* RO (0x4a8) Transmited pkt */ 569 u32 mca; /* RO # of xmited multicast pkt */ 570 u32 bca; /* RO # of xmited broadcast pkt */ 571 u32 pf; /* RO # of xmited pause frame count */ 572 u32 cf; /* RO # of xmited control frame count */ 573 u32 fcs; /* RO # of xmited FCS error count */ 574 u32 ovr; /* RO # of xmited oversize pkt */ 575 u32 drf; /* RO # of xmited deferral pkt */ 576 u32 edf; /* RO # of xmited Excessive deferral pkt*/ 577 u32 scl; /* RO # of xmited single collision pkt */ 578 u32 mcl; /* RO # of xmited multiple collision pkt*/ 579 u32 lcl; /* RO # of xmited late collision pkt */ 580 u32 ecl; /* RO # of xmited excessive collision pkt*/ 581 u32 frg; /* RO # of xmited fragments pkt*/ 582 u32 ncl; /* RO # of xmited total collision count */ 583 u32 jbr; /* RO # of xmited jabber count*/ 584 u32 bytes; /* RO # of xmited byte count */ 585 u32 pok; /* RO # of xmited good pkt */ 586 u32 uc; /* RO (0x4f0) # of xmited unicast pkt */ 587 }; 588 589 struct bcm_sysport_mib { 590 struct bcm_sysport_rx_counters rx; 591 struct bcm_sysport_tx_counters tx; 592 u32 rx_runt_cnt; 593 u32 rx_runt_fcs; 594 u32 rx_runt_fcs_align; 595 u32 rx_runt_bytes; 596 u32 rxchk_bad_csum; 597 u32 rxchk_other_pkt_disc; 598 u32 rbuf_ovflow_cnt; 599 u32 rbuf_err_cnt; 600 u32 alloc_rx_buff_failed; 601 u32 rx_dma_failed; 602 u32 tx_dma_failed; 603 }; 604 605 /* HW maintains a large list of counters */ 606 enum bcm_sysport_stat_type { 607 BCM_SYSPORT_STAT_NETDEV = -1, 608 BCM_SYSPORT_STAT_NETDEV64, 609 BCM_SYSPORT_STAT_MIB_RX, 610 BCM_SYSPORT_STAT_MIB_TX, 611 BCM_SYSPORT_STAT_RUNT, 612 BCM_SYSPORT_STAT_RXCHK, 613 BCM_SYSPORT_STAT_RBUF, 614 BCM_SYSPORT_STAT_SOFT, 615 }; 616 617 /* Macros to help define ethtool statistics */ 618 #define STAT_NETDEV(m) { \ 619 .stat_string = __stringify(m), \ 620 .stat_sizeof = sizeof(((struct net_device_stats *)0)->m), \ 621 .stat_offset = offsetof(struct net_device_stats, m), \ 622 .type = BCM_SYSPORT_STAT_NETDEV, \ 623 } 624 625 #define STAT_NETDEV64(m) { \ 626 .stat_string = __stringify(m), \ 627 .stat_sizeof = sizeof(((struct bcm_sysport_stats64 *)0)->m), \ 628 .stat_offset = offsetof(struct bcm_sysport_stats64, m), \ 629 .type = BCM_SYSPORT_STAT_NETDEV64, \ 630 } 631 632 #define STAT_MIB(str, m, _type) { \ 633 .stat_string = str, \ 634 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 635 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 636 .type = _type, \ 637 } 638 639 #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX) 640 #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX) 641 #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT) 642 #define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT) 643 644 #define STAT_RXCHK(str, m, ofs) { \ 645 .stat_string = str, \ 646 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 647 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 648 .type = BCM_SYSPORT_STAT_RXCHK, \ 649 .reg_offset = ofs, \ 650 } 651 652 #define STAT_RBUF(str, m, ofs) { \ 653 .stat_string = str, \ 654 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 655 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 656 .type = BCM_SYSPORT_STAT_RBUF, \ 657 .reg_offset = ofs, \ 658 } 659 660 /* TX bytes and packets */ 661 #define NUM_SYSPORT_TXQ_STAT 2 662 663 struct bcm_sysport_stats { 664 char stat_string[ETH_GSTRING_LEN]; 665 int stat_sizeof; 666 int stat_offset; 667 enum bcm_sysport_stat_type type; 668 /* reg offset from UMAC base for misc counters */ 669 u16 reg_offset; 670 }; 671 672 struct bcm_sysport_stats64 { 673 /* 64bit stats on 32bit/64bit Machine */ 674 u64 rx_packets; 675 u64 rx_bytes; 676 u64 tx_packets; 677 u64 tx_bytes; 678 }; 679 680 /* Software house keeping helper structure */ 681 struct bcm_sysport_cb { 682 struct sk_buff *skb; /* SKB for RX packets */ 683 void __iomem *bd_addr; /* Buffer descriptor PHYS addr */ 684 685 DEFINE_DMA_UNMAP_ADDR(dma_addr); 686 DEFINE_DMA_UNMAP_LEN(dma_len); 687 }; 688 689 enum bcm_sysport_type { 690 SYSTEMPORT = 0, 691 SYSTEMPORT_LITE, 692 }; 693 694 struct bcm_sysport_hw_params { 695 bool is_lite; 696 unsigned int num_rx_desc_words; 697 }; 698 699 struct bcm_sysport_net_dim { 700 u16 use_dim; 701 u16 event_ctr; 702 unsigned long packets; 703 unsigned long bytes; 704 struct net_dim dim; 705 }; 706 707 /* Software view of the TX ring */ 708 struct bcm_sysport_tx_ring { 709 spinlock_t lock; /* Ring lock for tx reclaim/xmit */ 710 struct napi_struct napi; /* NAPI per tx queue */ 711 dma_addr_t desc_dma; /* DMA cookie */ 712 unsigned int index; /* Ring index */ 713 unsigned int size; /* Ring current size */ 714 unsigned int alloc_size; /* Ring one-time allocated size */ 715 unsigned int desc_count; /* Number of descriptors */ 716 unsigned int curr_desc; /* Current descriptor */ 717 unsigned int c_index; /* Last consumer index */ 718 unsigned int clean_index; /* Current clean index */ 719 struct bcm_sysport_cb *cbs; /* Transmit control blocks */ 720 struct dma_desc *desc_cpu; /* CPU view of the descriptor */ 721 struct bcm_sysport_priv *priv; /* private context backpointer */ 722 unsigned long packets; /* packets statistics */ 723 unsigned long bytes; /* bytes statistics */ 724 unsigned int switch_queue; /* switch port queue number */ 725 unsigned int switch_port; /* switch port queue number */ 726 bool inspect; /* inspect switch port and queue */ 727 }; 728 729 /* Driver private structure */ 730 struct bcm_sysport_priv { 731 void __iomem *base; 732 u32 irq0_stat; 733 u32 irq0_mask; 734 u32 irq1_stat; 735 u32 irq1_mask; 736 bool is_lite; 737 unsigned int num_rx_desc_words; 738 struct napi_struct napi ____cacheline_aligned; 739 struct net_device *netdev; 740 struct platform_device *pdev; 741 int irq0; 742 int irq1; 743 int wol_irq; 744 745 /* Transmit rings */ 746 struct bcm_sysport_tx_ring *tx_rings; 747 748 /* Receive queue */ 749 void __iomem *rx_bds; 750 struct bcm_sysport_cb *rx_cbs; 751 unsigned int num_rx_bds; 752 unsigned int rx_read_ptr; 753 unsigned int rx_c_index; 754 755 struct bcm_sysport_net_dim dim; 756 u32 rx_max_coalesced_frames; 757 u32 rx_coalesce_usecs; 758 759 /* PHY device */ 760 struct device_node *phy_dn; 761 phy_interface_t phy_interface; 762 int old_pause; 763 int old_link; 764 int old_duplex; 765 766 /* Misc fields */ 767 unsigned int rx_chk_en:1; 768 unsigned int tsb_en:1; 769 unsigned int crc_fwd:1; 770 u16 rev; 771 u32 wolopts; 772 unsigned int wol_irq_disabled:1; 773 774 /* MIB related fields */ 775 struct bcm_sysport_mib mib; 776 777 /* Ethtool */ 778 u32 msg_enable; 779 780 struct bcm_sysport_stats64 stats64; 781 782 /* For atomic update generic 64bit value on 32bit Machine */ 783 struct u64_stats_sync syncp; 784 785 /* map information between switch port queues and local queues */ 786 struct notifier_block dsa_notifier; 787 unsigned int per_port_num_tx_queues; 788 unsigned long queue_bitmap; 789 struct bcm_sysport_tx_ring *ring_map[DSA_MAX_PORTS * 8]; 790 791 }; 792 #endif /* __BCM_SYSPORT_H */ 793