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/bitmap.h> 15 #include <linux/if_vlan.h> 16 #include <linux/net_dim.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_CMD 0x008 219 #define CMD_TX_EN (1 << 0) 220 #define CMD_RX_EN (1 << 1) 221 #define CMD_SPEED_SHIFT 2 222 #define CMD_SPEED_10 0 223 #define CMD_SPEED_100 1 224 #define CMD_SPEED_1000 2 225 #define CMD_SPEED_2500 3 226 #define CMD_SPEED_MASK 3 227 #define CMD_PROMISC (1 << 4) 228 #define CMD_PAD_EN (1 << 5) 229 #define CMD_CRC_FWD (1 << 6) 230 #define CMD_PAUSE_FWD (1 << 7) 231 #define CMD_RX_PAUSE_IGNORE (1 << 8) 232 #define CMD_TX_ADDR_INS (1 << 9) 233 #define CMD_HD_EN (1 << 10) 234 #define CMD_SW_RESET (1 << 13) 235 #define CMD_LCL_LOOP_EN (1 << 15) 236 #define CMD_AUTO_CONFIG (1 << 22) 237 #define CMD_CNTL_FRM_EN (1 << 23) 238 #define CMD_NO_LEN_CHK (1 << 24) 239 #define CMD_RMT_LOOP_EN (1 << 25) 240 #define CMD_PRBL_EN (1 << 27) 241 #define CMD_TX_PAUSE_IGNORE (1 << 28) 242 #define CMD_TX_RX_EN (1 << 29) 243 #define CMD_RUNT_FILTER_DIS (1 << 30) 244 245 #define UMAC_MAC0 0x00c 246 #define UMAC_MAC1 0x010 247 #define UMAC_MAX_FRAME_LEN 0x014 248 249 #define UMAC_TX_FLUSH 0x334 250 251 #define UMAC_MIB_START 0x400 252 253 /* There is a 0xC gap between the end of RX and beginning of TX stats and then 254 * between the end of TX stats and the beginning of the RX RUNT 255 */ 256 #define UMAC_MIB_STAT_OFFSET 0xc 257 258 #define UMAC_MIB_CTRL 0x580 259 #define MIB_RX_CNT_RST (1 << 0) 260 #define MIB_RUNT_CNT_RST (1 << 1) 261 #define MIB_TX_CNT_RST (1 << 2) 262 263 /* These offsets are valid for SYSTEMPORT and SYSTEMPORT Lite */ 264 #define UMAC_MPD_CTRL 0x620 265 #define MPD_EN (1 << 0) 266 #define MSEQ_LEN_SHIFT 16 267 #define MSEQ_LEN_MASK 0xff 268 #define PSW_EN (1 << 27) 269 270 #define UMAC_PSW_MS 0x624 271 #define UMAC_PSW_LS 0x628 272 #define UMAC_MDF_CTRL 0x650 273 #define UMAC_MDF_ADDR 0x654 274 275 /* Only valid on SYSTEMPORT Lite */ 276 #define SYS_PORT_GIB_OFFSET 0x1000 277 278 #define GIB_CONTROL 0x00 279 #define GIB_TX_EN (1 << 0) 280 #define GIB_RX_EN (1 << 1) 281 #define GIB_TX_FLUSH (1 << 2) 282 #define GIB_RX_FLUSH (1 << 3) 283 #define GIB_GTX_CLK_SEL_SHIFT 4 284 #define GIB_GTX_CLK_EXT_CLK (0 << GIB_GTX_CLK_SEL_SHIFT) 285 #define GIB_GTX_CLK_125MHZ (1 << GIB_GTX_CLK_SEL_SHIFT) 286 #define GIB_GTX_CLK_250MHZ (2 << GIB_GTX_CLK_SEL_SHIFT) 287 #define GIB_FCS_STRIP_SHIFT 6 288 #define GIB_FCS_STRIP (1 << GIB_FCS_STRIP_SHIFT) 289 #define GIB_LCL_LOOP_EN (1 << 7) 290 #define GIB_LCL_LOOP_TXEN (1 << 8) 291 #define GIB_RMT_LOOP_EN (1 << 9) 292 #define GIB_RMT_LOOP_RXEN (1 << 10) 293 #define GIB_RX_PAUSE_EN (1 << 11) 294 #define GIB_PREAMBLE_LEN_SHIFT 12 295 #define GIB_PREAMBLE_LEN_MASK 0xf 296 #define GIB_IPG_LEN_SHIFT 16 297 #define GIB_IPG_LEN_MASK 0x3f 298 #define GIB_PAD_EXTENSION_SHIFT 22 299 #define GIB_PAD_EXTENSION_MASK 0x3f 300 301 #define GIB_MAC1 0x08 302 #define GIB_MAC0 0x0c 303 304 /* Receive DMA offset and defines */ 305 #define SYS_PORT_RDMA_OFFSET 0x2000 306 307 #define RDMA_CONTROL 0x1000 308 #define RDMA_EN (1 << 0) 309 #define RDMA_RING_CFG (1 << 1) 310 #define RDMA_DISC_EN (1 << 2) 311 #define RDMA_BUF_DATA_OFFSET_SHIFT 4 312 #define RDMA_BUF_DATA_OFFSET_MASK 0x3ff 313 314 #define RDMA_STATUS 0x1004 315 #define RDMA_DISABLED (1 << 0) 316 #define RDMA_DESC_RAM_INIT_BUSY (1 << 1) 317 #define RDMA_BP_STATUS (1 << 2) 318 319 #define RDMA_SCB_BURST_SIZE 0x1008 320 321 #define RDMA_RING_BUF_SIZE 0x100c 322 #define RDMA_RING_SIZE_SHIFT 16 323 324 #define RDMA_WRITE_PTR_HI 0x1010 325 #define RDMA_WRITE_PTR_LO 0x1014 326 #define RDMA_PROD_INDEX 0x1018 327 #define RDMA_PROD_INDEX_MASK 0xffff 328 329 #define RDMA_CONS_INDEX 0x101c 330 #define RDMA_CONS_INDEX_MASK 0xffff 331 332 #define RDMA_START_ADDR_HI 0x1020 333 #define RDMA_START_ADDR_LO 0x1024 334 #define RDMA_END_ADDR_HI 0x1028 335 #define RDMA_END_ADDR_LO 0x102c 336 337 #define RDMA_MBDONE_INTR 0x1030 338 #define RDMA_INTR_THRESH_MASK 0x1ff 339 #define RDMA_TIMEOUT_SHIFT 16 340 #define RDMA_TIMEOUT_MASK 0xffff 341 342 #define RDMA_XON_XOFF_THRESH 0x1034 343 #define RDMA_XON_XOFF_THRESH_MASK 0xffff 344 #define RDMA_XOFF_THRESH_SHIFT 16 345 346 #define RDMA_READ_PTR_HI 0x1038 347 #define RDMA_READ_PTR_LO 0x103c 348 349 #define RDMA_OVERRIDE 0x1040 350 #define RDMA_LE_MODE (1 << 0) 351 #define RDMA_REG_MODE (1 << 1) 352 353 #define RDMA_TEST 0x1044 354 #define RDMA_TP_OUT_SEL (1 << 0) 355 #define RDMA_MEM_SEL (1 << 1) 356 357 #define RDMA_DEBUG 0x1048 358 359 /* Transmit DMA offset and defines */ 360 #define TDMA_NUM_RINGS 32 /* rings = queues */ 361 #define TDMA_PORT_SIZE DESC_SIZE /* two 32-bits words */ 362 363 #define SYS_PORT_TDMA_OFFSET 0x4000 364 #define TDMA_WRITE_PORT_OFFSET 0x0000 365 #define TDMA_WRITE_PORT_HI(i) (TDMA_WRITE_PORT_OFFSET + \ 366 (i) * TDMA_PORT_SIZE) 367 #define TDMA_WRITE_PORT_LO(i) (TDMA_WRITE_PORT_OFFSET + \ 368 sizeof(u32) + (i) * TDMA_PORT_SIZE) 369 370 #define TDMA_READ_PORT_OFFSET (TDMA_WRITE_PORT_OFFSET + \ 371 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 372 #define TDMA_READ_PORT_HI(i) (TDMA_READ_PORT_OFFSET + \ 373 (i) * TDMA_PORT_SIZE) 374 #define TDMA_READ_PORT_LO(i) (TDMA_READ_PORT_OFFSET + \ 375 sizeof(u32) + (i) * TDMA_PORT_SIZE) 376 377 #define TDMA_READ_PORT_CMD_OFFSET (TDMA_READ_PORT_OFFSET + \ 378 (TDMA_NUM_RINGS * TDMA_PORT_SIZE)) 379 #define TDMA_READ_PORT_CMD(i) (TDMA_READ_PORT_CMD_OFFSET + \ 380 (i) * sizeof(u32)) 381 382 #define TDMA_DESC_RING_00_BASE (TDMA_READ_PORT_CMD_OFFSET + \ 383 (TDMA_NUM_RINGS * sizeof(u32))) 384 385 /* Register offsets and defines relatives to a specific ring number */ 386 #define RING_HEAD_TAIL_PTR 0x00 387 #define RING_HEAD_MASK 0x7ff 388 #define RING_TAIL_SHIFT 11 389 #define RING_TAIL_MASK 0x7ff 390 #define RING_FLUSH (1 << 24) 391 #define RING_EN (1 << 25) 392 393 #define RING_COUNT 0x04 394 #define RING_COUNT_MASK 0x7ff 395 #define RING_BUFF_DONE_SHIFT 11 396 #define RING_BUFF_DONE_MASK 0x7ff 397 398 #define RING_MAX_HYST 0x08 399 #define RING_MAX_THRESH_MASK 0x7ff 400 #define RING_HYST_THRESH_SHIFT 11 401 #define RING_HYST_THRESH_MASK 0x7ff 402 403 #define RING_INTR_CONTROL 0x0c 404 #define RING_INTR_THRESH_MASK 0x7ff 405 #define RING_EMPTY_INTR_EN (1 << 15) 406 #define RING_TIMEOUT_SHIFT 16 407 #define RING_TIMEOUT_MASK 0xffff 408 409 #define RING_PROD_CONS_INDEX 0x10 410 #define RING_PROD_INDEX_MASK 0xffff 411 #define RING_CONS_INDEX_SHIFT 16 412 #define RING_CONS_INDEX_MASK 0xffff 413 414 #define RING_MAPPING 0x14 415 #define RING_QID_MASK 0x7 416 #define RING_PORT_ID_SHIFT 3 417 #define RING_PORT_ID_MASK 0x7 418 #define RING_IGNORE_STATUS (1 << 6) 419 #define RING_FAILOVER_EN (1 << 7) 420 #define RING_CREDIT_SHIFT 8 421 #define RING_CREDIT_MASK 0xffff 422 423 #define RING_PCP_DEI_VID 0x18 424 #define RING_VID_MASK 0x7ff 425 #define RING_DEI (1 << 12) 426 #define RING_PCP_SHIFT 13 427 #define RING_PCP_MASK 0x7 428 #define RING_PKT_SIZE_ADJ_SHIFT 16 429 #define RING_PKT_SIZE_ADJ_MASK 0xf 430 431 #define TDMA_DESC_RING_SIZE 28 432 433 /* Defininition for a given TX ring base address */ 434 #define TDMA_DESC_RING_BASE(i) (TDMA_DESC_RING_00_BASE + \ 435 ((i) * TDMA_DESC_RING_SIZE)) 436 437 /* Ring indexed register addreses */ 438 #define TDMA_DESC_RING_HEAD_TAIL_PTR(i) (TDMA_DESC_RING_BASE(i) + \ 439 RING_HEAD_TAIL_PTR) 440 #define TDMA_DESC_RING_COUNT(i) (TDMA_DESC_RING_BASE(i) + \ 441 RING_COUNT) 442 #define TDMA_DESC_RING_MAX_HYST(i) (TDMA_DESC_RING_BASE(i) + \ 443 RING_MAX_HYST) 444 #define TDMA_DESC_RING_INTR_CONTROL(i) (TDMA_DESC_RING_BASE(i) + \ 445 RING_INTR_CONTROL) 446 #define TDMA_DESC_RING_PROD_CONS_INDEX(i) \ 447 (TDMA_DESC_RING_BASE(i) + \ 448 RING_PROD_CONS_INDEX) 449 #define TDMA_DESC_RING_MAPPING(i) (TDMA_DESC_RING_BASE(i) + \ 450 RING_MAPPING) 451 #define TDMA_DESC_RING_PCP_DEI_VID(i) (TDMA_DESC_RING_BASE(i) + \ 452 RING_PCP_DEI_VID) 453 454 #define TDMA_CONTROL 0x600 455 #define TDMA_EN 0 456 #define TSB_EN 1 457 /* Uses 2 bits on SYSTEMPORT Lite and shifts everything by 1 bit, we 458 * keep the SYSTEMPORT layout here and adjust with tdma_control_bit() 459 */ 460 #define TSB_SWAP0 2 461 #define TSB_SWAP1 3 462 #define ACB_ALGO 3 463 #define BUF_DATA_OFFSET_SHIFT 4 464 #define BUF_DATA_OFFSET_MASK 0x3ff 465 #define VLAN_EN 14 466 #define SW_BRCM_TAG 15 467 #define WNC_KPT_SIZE_UPDATE 16 468 #define SYNC_PKT_SIZE 17 469 #define ACH_TXDONE_DELAY_SHIFT 18 470 #define ACH_TXDONE_DELAY_MASK 0xff 471 472 #define TDMA_STATUS 0x604 473 #define TDMA_DISABLED (1 << 0) 474 #define TDMA_LL_RAM_INIT_BUSY (1 << 1) 475 476 #define TDMA_SCB_BURST_SIZE 0x608 477 #define TDMA_OVER_MAX_THRESH_STATUS 0x60c 478 #define TDMA_OVER_HYST_THRESH_STATUS 0x610 479 #define TDMA_TPID 0x614 480 481 #define TDMA_FREE_LIST_HEAD_TAIL_PTR 0x618 482 #define TDMA_FREE_HEAD_MASK 0x7ff 483 #define TDMA_FREE_TAIL_SHIFT 11 484 #define TDMA_FREE_TAIL_MASK 0x7ff 485 486 #define TDMA_FREE_LIST_COUNT 0x61c 487 #define TDMA_FREE_LIST_COUNT_MASK 0x7ff 488 489 #define TDMA_TIER2_ARB_CTRL 0x620 490 #define TDMA_ARB_MODE_RR 0 491 #define TDMA_ARB_MODE_WEIGHT_RR 0x1 492 #define TDMA_ARB_MODE_STRICT 0x2 493 #define TDMA_ARB_MODE_DEFICIT_RR 0x3 494 #define TDMA_CREDIT_SHIFT 4 495 #define TDMA_CREDIT_MASK 0xffff 496 497 #define TDMA_TIER1_ARB_0_CTRL 0x624 498 #define TDMA_ARB_EN (1 << 0) 499 500 #define TDMA_TIER1_ARB_0_QUEUE_EN 0x628 501 #define TDMA_TIER1_ARB_1_CTRL 0x62c 502 #define TDMA_TIER1_ARB_1_QUEUE_EN 0x630 503 #define TDMA_TIER1_ARB_2_CTRL 0x634 504 #define TDMA_TIER1_ARB_2_QUEUE_EN 0x638 505 #define TDMA_TIER1_ARB_3_CTRL 0x63c 506 #define TDMA_TIER1_ARB_3_QUEUE_EN 0x640 507 508 #define TDMA_SCB_ENDIAN_OVERRIDE 0x644 509 #define TDMA_LE_MODE (1 << 0) 510 #define TDMA_REG_MODE (1 << 1) 511 512 #define TDMA_TEST 0x648 513 #define TDMA_TP_OUT_SEL (1 << 0) 514 #define TDMA_MEM_TM (1 << 1) 515 516 #define TDMA_DEBUG 0x64c 517 518 /* Transmit/Receive descriptor */ 519 struct dma_desc { 520 u32 addr_status_len; 521 u32 addr_lo; 522 }; 523 524 /* Number of Receive hardware descriptor words */ 525 #define SP_NUM_HW_RX_DESC_WORDS 1024 526 #define SP_LT_NUM_HW_RX_DESC_WORDS 256 527 528 /* Internal linked-list RAM size */ 529 #define SP_NUM_TX_DESC 1536 530 #define SP_LT_NUM_TX_DESC 256 531 532 #define WORDS_PER_DESC (sizeof(struct dma_desc) / sizeof(u32)) 533 534 /* Rx/Tx common counter group.*/ 535 struct bcm_sysport_pkt_counters { 536 u32 cnt_64; /* RO Received/Transmited 64 bytes packet */ 537 u32 cnt_127; /* RO Rx/Tx 127 bytes packet */ 538 u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */ 539 u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */ 540 u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */ 541 u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */ 542 u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */ 543 u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/ 544 u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/ 545 u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/ 546 }; 547 548 /* RSV, Receive Status Vector */ 549 struct bcm_sysport_rx_counters { 550 struct bcm_sysport_pkt_counters pkt_cnt; 551 u32 pkt; /* RO (0x428) Received pkt count*/ 552 u32 bytes; /* RO Received byte count */ 553 u32 mca; /* RO # of Received multicast pkt */ 554 u32 bca; /* RO # of Receive broadcast pkt */ 555 u32 fcs; /* RO # of Received FCS error */ 556 u32 cf; /* RO # of Received control frame pkt*/ 557 u32 pf; /* RO # of Received pause frame pkt */ 558 u32 uo; /* RO # of unknown op code pkt */ 559 u32 aln; /* RO # of alignment error count */ 560 u32 flr; /* RO # of frame length out of range count */ 561 u32 cde; /* RO # of code error pkt */ 562 u32 fcr; /* RO # of carrier sense error pkt */ 563 u32 ovr; /* RO # of oversize pkt*/ 564 u32 jbr; /* RO # of jabber count */ 565 u32 mtue; /* RO # of MTU error pkt*/ 566 u32 pok; /* RO # of Received good pkt */ 567 u32 uc; /* RO # of unicast pkt */ 568 u32 ppp; /* RO # of PPP pkt */ 569 u32 rcrc; /* RO (0x470),# of CRC match pkt */ 570 }; 571 572 /* TSV, Transmit Status Vector */ 573 struct bcm_sysport_tx_counters { 574 struct bcm_sysport_pkt_counters pkt_cnt; 575 u32 pkts; /* RO (0x4a8) Transmited pkt */ 576 u32 mca; /* RO # of xmited multicast pkt */ 577 u32 bca; /* RO # of xmited broadcast pkt */ 578 u32 pf; /* RO # of xmited pause frame count */ 579 u32 cf; /* RO # of xmited control frame count */ 580 u32 fcs; /* RO # of xmited FCS error count */ 581 u32 ovr; /* RO # of xmited oversize pkt */ 582 u32 drf; /* RO # of xmited deferral pkt */ 583 u32 edf; /* RO # of xmited Excessive deferral pkt*/ 584 u32 scl; /* RO # of xmited single collision pkt */ 585 u32 mcl; /* RO # of xmited multiple collision pkt*/ 586 u32 lcl; /* RO # of xmited late collision pkt */ 587 u32 ecl; /* RO # of xmited excessive collision pkt*/ 588 u32 frg; /* RO # of xmited fragments pkt*/ 589 u32 ncl; /* RO # of xmited total collision count */ 590 u32 jbr; /* RO # of xmited jabber count*/ 591 u32 bytes; /* RO # of xmited byte count */ 592 u32 pok; /* RO # of xmited good pkt */ 593 u32 uc; /* RO (0x4f0) # of xmited unicast pkt */ 594 }; 595 596 struct bcm_sysport_mib { 597 struct bcm_sysport_rx_counters rx; 598 struct bcm_sysport_tx_counters tx; 599 u32 rx_runt_cnt; 600 u32 rx_runt_fcs; 601 u32 rx_runt_fcs_align; 602 u32 rx_runt_bytes; 603 u32 rxchk_bad_csum; 604 u32 rxchk_other_pkt_disc; 605 u32 rbuf_ovflow_cnt; 606 u32 rbuf_err_cnt; 607 u32 alloc_rx_buff_failed; 608 u32 rx_dma_failed; 609 u32 tx_dma_failed; 610 u32 tx_realloc_tsb; 611 u32 tx_realloc_tsb_failed; 612 }; 613 614 /* HW maintains a large list of counters */ 615 enum bcm_sysport_stat_type { 616 BCM_SYSPORT_STAT_NETDEV = -1, 617 BCM_SYSPORT_STAT_NETDEV64, 618 BCM_SYSPORT_STAT_MIB_RX, 619 BCM_SYSPORT_STAT_MIB_TX, 620 BCM_SYSPORT_STAT_RUNT, 621 BCM_SYSPORT_STAT_RXCHK, 622 BCM_SYSPORT_STAT_RBUF, 623 BCM_SYSPORT_STAT_SOFT, 624 }; 625 626 /* Macros to help define ethtool statistics */ 627 #define STAT_NETDEV(m) { \ 628 .stat_string = __stringify(m), \ 629 .stat_sizeof = sizeof(((struct net_device_stats *)0)->m), \ 630 .stat_offset = offsetof(struct net_device_stats, m), \ 631 .type = BCM_SYSPORT_STAT_NETDEV, \ 632 } 633 634 #define STAT_NETDEV64(m) { \ 635 .stat_string = __stringify(m), \ 636 .stat_sizeof = sizeof(((struct bcm_sysport_stats64 *)0)->m), \ 637 .stat_offset = offsetof(struct bcm_sysport_stats64, m), \ 638 .type = BCM_SYSPORT_STAT_NETDEV64, \ 639 } 640 641 #define STAT_MIB(str, m, _type) { \ 642 .stat_string = str, \ 643 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 644 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 645 .type = _type, \ 646 } 647 648 #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX) 649 #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX) 650 #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT) 651 #define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT) 652 653 #define STAT_RXCHK(str, m, ofs) { \ 654 .stat_string = str, \ 655 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 656 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 657 .type = BCM_SYSPORT_STAT_RXCHK, \ 658 .reg_offset = ofs, \ 659 } 660 661 #define STAT_RBUF(str, m, ofs) { \ 662 .stat_string = str, \ 663 .stat_sizeof = sizeof(((struct bcm_sysport_priv *)0)->m), \ 664 .stat_offset = offsetof(struct bcm_sysport_priv, m), \ 665 .type = BCM_SYSPORT_STAT_RBUF, \ 666 .reg_offset = ofs, \ 667 } 668 669 /* TX bytes and packets */ 670 #define NUM_SYSPORT_TXQ_STAT 2 671 672 struct bcm_sysport_stats { 673 char stat_string[ETH_GSTRING_LEN]; 674 int stat_sizeof; 675 int stat_offset; 676 enum bcm_sysport_stat_type type; 677 /* reg offset from UMAC base for misc counters */ 678 u16 reg_offset; 679 }; 680 681 struct bcm_sysport_stats64 { 682 /* 64bit stats on 32bit/64bit Machine */ 683 u64 rx_packets; 684 u64 rx_bytes; 685 u64 tx_packets; 686 u64 tx_bytes; 687 }; 688 689 /* Software house keeping helper structure */ 690 struct bcm_sysport_cb { 691 struct sk_buff *skb; /* SKB for RX packets */ 692 void __iomem *bd_addr; /* Buffer descriptor PHYS addr */ 693 694 DEFINE_DMA_UNMAP_ADDR(dma_addr); 695 DEFINE_DMA_UNMAP_LEN(dma_len); 696 }; 697 698 enum bcm_sysport_type { 699 SYSTEMPORT = 0, 700 SYSTEMPORT_LITE, 701 }; 702 703 struct bcm_sysport_hw_params { 704 bool is_lite; 705 unsigned int num_rx_desc_words; 706 }; 707 708 struct bcm_sysport_net_dim { 709 u16 use_dim; 710 u16 event_ctr; 711 unsigned long packets; 712 unsigned long bytes; 713 struct net_dim dim; 714 }; 715 716 /* Software view of the TX ring */ 717 struct bcm_sysport_tx_ring { 718 spinlock_t lock; /* Ring lock for tx reclaim/xmit */ 719 struct napi_struct napi; /* NAPI per tx queue */ 720 dma_addr_t desc_dma; /* DMA cookie */ 721 unsigned int index; /* Ring index */ 722 unsigned int size; /* Ring current size */ 723 unsigned int alloc_size; /* Ring one-time allocated size */ 724 unsigned int desc_count; /* Number of descriptors */ 725 unsigned int curr_desc; /* Current descriptor */ 726 unsigned int c_index; /* Last consumer index */ 727 unsigned int clean_index; /* Current clean index */ 728 struct bcm_sysport_cb *cbs; /* Transmit control blocks */ 729 struct dma_desc *desc_cpu; /* CPU view of the descriptor */ 730 struct bcm_sysport_priv *priv; /* private context backpointer */ 731 unsigned long packets; /* packets statistics */ 732 unsigned long bytes; /* bytes statistics */ 733 unsigned int switch_queue; /* switch port queue number */ 734 unsigned int switch_port; /* switch port queue number */ 735 bool inspect; /* inspect switch port and queue */ 736 }; 737 738 /* Driver private structure */ 739 struct bcm_sysport_priv { 740 void __iomem *base; 741 u32 irq0_stat; 742 u32 irq0_mask; 743 u32 irq1_stat; 744 u32 irq1_mask; 745 bool is_lite; 746 unsigned int num_rx_desc_words; 747 struct napi_struct napi ____cacheline_aligned; 748 struct net_device *netdev; 749 struct platform_device *pdev; 750 int irq0; 751 int irq1; 752 int wol_irq; 753 754 /* Transmit rings */ 755 struct bcm_sysport_tx_ring *tx_rings; 756 757 /* Receive queue */ 758 void __iomem *rx_bds; 759 struct bcm_sysport_cb *rx_cbs; 760 unsigned int num_rx_bds; 761 unsigned int rx_read_ptr; 762 unsigned int rx_c_index; 763 764 struct bcm_sysport_net_dim dim; 765 u32 rx_max_coalesced_frames; 766 u32 rx_coalesce_usecs; 767 768 /* PHY device */ 769 struct device_node *phy_dn; 770 phy_interface_t phy_interface; 771 int old_pause; 772 int old_link; 773 int old_duplex; 774 775 /* Misc fields */ 776 unsigned int rx_chk_en:1; 777 unsigned int tsb_en:1; 778 unsigned int crc_fwd:1; 779 u16 rev; 780 u32 wolopts; 781 unsigned int wol_irq_disabled:1; 782 783 /* MIB related fields */ 784 struct bcm_sysport_mib mib; 785 786 /* Ethtool */ 787 u32 msg_enable; 788 DECLARE_BITMAP(filters, RXCHK_BRCM_TAG_MAX); 789 u32 filters_loc[RXCHK_BRCM_TAG_MAX]; 790 791 struct bcm_sysport_stats64 stats64; 792 793 /* For atomic update generic 64bit value on 32bit Machine */ 794 struct u64_stats_sync syncp; 795 796 /* map information between switch port queues and local queues */ 797 struct notifier_block dsa_notifier; 798 unsigned int per_port_num_tx_queues; 799 struct bcm_sysport_tx_ring *ring_map[DSA_MAX_PORTS * 8]; 800 801 }; 802 #endif /* __BCM_SYSPORT_H */ 803