1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ 3 4 #ifndef _MLXSW_PCI_HW_H 5 #define _MLXSW_PCI_HW_H 6 7 #include <linux/bitops.h> 8 9 #include "item.h" 10 11 #define MLXSW_PCI_BAR0_SIZE (1024 * 1024) /* 1MB */ 12 #define MLXSW_PCI_PAGE_SIZE 4096 13 14 #define MLXSW_PCI_CIR_BASE 0x71000 15 #define MLXSW_PCI_CIR_IN_PARAM_HI MLXSW_PCI_CIR_BASE 16 #define MLXSW_PCI_CIR_IN_PARAM_LO (MLXSW_PCI_CIR_BASE + 0x04) 17 #define MLXSW_PCI_CIR_IN_MODIFIER (MLXSW_PCI_CIR_BASE + 0x08) 18 #define MLXSW_PCI_CIR_OUT_PARAM_HI (MLXSW_PCI_CIR_BASE + 0x0C) 19 #define MLXSW_PCI_CIR_OUT_PARAM_LO (MLXSW_PCI_CIR_BASE + 0x10) 20 #define MLXSW_PCI_CIR_TOKEN (MLXSW_PCI_CIR_BASE + 0x14) 21 #define MLXSW_PCI_CIR_CTRL (MLXSW_PCI_CIR_BASE + 0x18) 22 #define MLXSW_PCI_CIR_CTRL_GO_BIT BIT(23) 23 #define MLXSW_PCI_CIR_CTRL_EVREQ_BIT BIT(22) 24 #define MLXSW_PCI_CIR_CTRL_OPCODE_MOD_SHIFT 12 25 #define MLXSW_PCI_CIR_CTRL_STATUS_SHIFT 24 26 #define MLXSW_PCI_CIR_TIMEOUT_MSECS 1000 27 28 #define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 900000 29 #define MLXSW_PCI_SW_RESET_WAIT_MSECS 200 30 #define MLXSW_PCI_FW_READY 0xA1844 31 #define MLXSW_PCI_FW_READY_MASK 0xFFFF 32 #define MLXSW_PCI_FW_READY_MAGIC 0x5E 33 34 #define MLXSW_PCI_DOORBELL_SDQ_OFFSET 0x000 35 #define MLXSW_PCI_DOORBELL_RDQ_OFFSET 0x200 36 #define MLXSW_PCI_DOORBELL_CQ_OFFSET 0x400 37 #define MLXSW_PCI_DOORBELL_EQ_OFFSET 0x600 38 #define MLXSW_PCI_DOORBELL_ARM_CQ_OFFSET 0x800 39 #define MLXSW_PCI_DOORBELL_ARM_EQ_OFFSET 0xA00 40 41 #define MLXSW_PCI_DOORBELL(offset, type_offset, num) \ 42 ((offset) + (type_offset) + (num) * 4) 43 44 #define MLXSW_PCI_CQS_MAX 96 45 #define MLXSW_PCI_EQS_COUNT 2 46 #define MLXSW_PCI_EQ_ASYNC_NUM 0 47 #define MLXSW_PCI_EQ_COMP_NUM 1 48 49 #define MLXSW_PCI_SDQS_MIN 2 /* EMAD and control traffic */ 50 #define MLXSW_PCI_SDQ_EMAD_INDEX 0 51 #define MLXSW_PCI_SDQ_EMAD_TC 0 52 #define MLXSW_PCI_SDQ_CTL_TC 3 53 54 #define MLXSW_PCI_AQ_PAGES 8 55 #define MLXSW_PCI_AQ_SIZE (MLXSW_PCI_PAGE_SIZE * MLXSW_PCI_AQ_PAGES) 56 #define MLXSW_PCI_WQE_SIZE 32 /* 32 bytes per element */ 57 #define MLXSW_PCI_CQE01_SIZE 16 /* 16 bytes per element */ 58 #define MLXSW_PCI_CQE2_SIZE 32 /* 32 bytes per element */ 59 #define MLXSW_PCI_CQE_SIZE_MAX MLXSW_PCI_CQE2_SIZE 60 #define MLXSW_PCI_EQE_SIZE 16 /* 16 bytes per element */ 61 #define MLXSW_PCI_WQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_WQE_SIZE) 62 #define MLXSW_PCI_CQE01_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE01_SIZE) 63 #define MLXSW_PCI_CQE2_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE2_SIZE) 64 #define MLXSW_PCI_EQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_EQE_SIZE) 65 #define MLXSW_PCI_EQE_UPDATE_COUNT 0x80 66 67 #define MLXSW_PCI_WQE_SG_ENTRIES 3 68 #define MLXSW_PCI_WQE_TYPE_ETHERNET 0xA 69 70 /* pci_wqe_c 71 * If set it indicates that a completion should be reported upon 72 * execution of this descriptor. 73 */ 74 MLXSW_ITEM32(pci, wqe, c, 0x00, 31, 1); 75 76 /* pci_wqe_lp 77 * Local Processing, set if packet should be processed by the local 78 * switch hardware: 79 * For Ethernet EMAD (Direct Route and non Direct Route) - 80 * must be set if packet destination is local device 81 * For InfiniBand CTL - must be set if packet destination is local device 82 * Otherwise it must be clear 83 * Local Process packets must not exceed the size of 2K (including payload 84 * and headers). 85 */ 86 MLXSW_ITEM32(pci, wqe, lp, 0x00, 30, 1); 87 88 /* pci_wqe_type 89 * Packet type. 90 */ 91 MLXSW_ITEM32(pci, wqe, type, 0x00, 23, 4); 92 93 /* pci_wqe_byte_count 94 * Size of i-th scatter/gather entry, 0 if entry is unused. 95 */ 96 MLXSW_ITEM16_INDEXED(pci, wqe, byte_count, 0x02, 0, 14, 0x02, 0x00, false); 97 98 /* pci_wqe_address 99 * Physical address of i-th scatter/gather entry. 100 * Gather Entries must be 2Byte aligned. 101 */ 102 MLXSW_ITEM64_INDEXED(pci, wqe, address, 0x08, 0, 64, 0x8, 0x0, false); 103 104 enum mlxsw_pci_cqe_v { 105 MLXSW_PCI_CQE_V0, 106 MLXSW_PCI_CQE_V1, 107 MLXSW_PCI_CQE_V2, 108 }; 109 110 #define mlxsw_pci_cqe_item_helpers(name, v0, v1, v2) \ 111 static inline u32 mlxsw_pci_cqe_##name##_get(enum mlxsw_pci_cqe_v v, char *cqe) \ 112 { \ 113 switch (v) { \ 114 default: \ 115 case MLXSW_PCI_CQE_V0: \ 116 return mlxsw_pci_cqe##v0##_##name##_get(cqe); \ 117 case MLXSW_PCI_CQE_V1: \ 118 return mlxsw_pci_cqe##v1##_##name##_get(cqe); \ 119 case MLXSW_PCI_CQE_V2: \ 120 return mlxsw_pci_cqe##v2##_##name##_get(cqe); \ 121 } \ 122 } \ 123 static inline void mlxsw_pci_cqe_##name##_set(enum mlxsw_pci_cqe_v v, \ 124 char *cqe, u32 val) \ 125 { \ 126 switch (v) { \ 127 default: \ 128 case MLXSW_PCI_CQE_V0: \ 129 mlxsw_pci_cqe##v0##_##name##_set(cqe, val); \ 130 break; \ 131 case MLXSW_PCI_CQE_V1: \ 132 mlxsw_pci_cqe##v1##_##name##_set(cqe, val); \ 133 break; \ 134 case MLXSW_PCI_CQE_V2: \ 135 mlxsw_pci_cqe##v2##_##name##_set(cqe, val); \ 136 break; \ 137 } \ 138 } 139 140 /* pci_cqe_lag 141 * Packet arrives from a port which is a LAG 142 */ 143 MLXSW_ITEM32(pci, cqe0, lag, 0x00, 23, 1); 144 MLXSW_ITEM32(pci, cqe12, lag, 0x00, 24, 1); 145 mlxsw_pci_cqe_item_helpers(lag, 0, 12, 12); 146 147 /* pci_cqe_system_port/lag_id 148 * When lag=0: System port on which the packet was received 149 * When lag=1: 150 * bits [15:4] LAG ID on which the packet was received 151 * bits [3:0] sub_port on which the packet was received 152 */ 153 MLXSW_ITEM32(pci, cqe, system_port, 0x00, 0, 16); 154 MLXSW_ITEM32(pci, cqe0, lag_id, 0x00, 4, 12); 155 MLXSW_ITEM32(pci, cqe12, lag_id, 0x00, 0, 16); 156 mlxsw_pci_cqe_item_helpers(lag_id, 0, 12, 12); 157 MLXSW_ITEM32(pci, cqe0, lag_subport, 0x00, 0, 4); 158 MLXSW_ITEM32(pci, cqe12, lag_subport, 0x00, 16, 8); 159 mlxsw_pci_cqe_item_helpers(lag_subport, 0, 12, 12); 160 161 /* pci_cqe_wqe_counter 162 * WQE count of the WQEs completed on the associated dqn 163 */ 164 MLXSW_ITEM32(pci, cqe, wqe_counter, 0x04, 16, 16); 165 166 /* pci_cqe_byte_count 167 * Byte count of received packets including additional two 168 * Reserved Bytes that are append to the end of the frame. 169 * Reserved for Send CQE. 170 */ 171 MLXSW_ITEM32(pci, cqe, byte_count, 0x04, 0, 14); 172 173 #define MLXSW_PCI_CQE2_MIRROR_CONG_INVALID 0xFFFF 174 175 /* pci_cqe_mirror_cong_high 176 * Congestion level in units of 8KB of the egress traffic class of the original 177 * packet that does mirroring to the CPU. Value of 0xFFFF means that the 178 * congestion level is invalid. 179 */ 180 MLXSW_ITEM32(pci, cqe2, mirror_cong_high, 0x08, 16, 4); 181 182 /* pci_cqe_trap_id 183 * Trap ID that captured the packet. 184 */ 185 MLXSW_ITEM32(pci, cqe, trap_id, 0x08, 0, 10); 186 187 /* pci_cqe_crc 188 * Length include CRC. Indicates the length field includes 189 * the packet's CRC. 190 */ 191 MLXSW_ITEM32(pci, cqe0, crc, 0x0C, 8, 1); 192 MLXSW_ITEM32(pci, cqe12, crc, 0x0C, 9, 1); 193 mlxsw_pci_cqe_item_helpers(crc, 0, 12, 12); 194 195 /* pci_cqe_e 196 * CQE with Error. 197 */ 198 MLXSW_ITEM32(pci, cqe0, e, 0x0C, 7, 1); 199 MLXSW_ITEM32(pci, cqe12, e, 0x00, 27, 1); 200 mlxsw_pci_cqe_item_helpers(e, 0, 12, 12); 201 202 /* pci_cqe_sr 203 * 1 - Send Queue 204 * 0 - Receive Queue 205 */ 206 MLXSW_ITEM32(pci, cqe0, sr, 0x0C, 6, 1); 207 MLXSW_ITEM32(pci, cqe12, sr, 0x00, 26, 1); 208 mlxsw_pci_cqe_item_helpers(sr, 0, 12, 12); 209 210 /* pci_cqe_dqn 211 * Descriptor Queue (DQ) Number. 212 */ 213 MLXSW_ITEM32(pci, cqe0, dqn, 0x0C, 1, 5); 214 MLXSW_ITEM32(pci, cqe12, dqn, 0x0C, 1, 6); 215 mlxsw_pci_cqe_item_helpers(dqn, 0, 12, 12); 216 217 /* pci_cqe_time_stamp_low 218 * Time stamp of the CQE 219 * Format according to time_stamp_type: 220 * 0: uSec - 1.024uSec (default for devices which do not support 221 * time_stamp_type). Only bits 15:0 are valid 222 * 1: FRC - Free Running Clock - units of 1nSec 223 * 2: UTC - time_stamp[37:30] = Sec 224 * - time_stamp[29:0] = nSec 225 * 3: Mirror_UTC. UTC time stamp of the original packet that has 226 * MIRROR_SESSION traps 227 * - time_stamp[37:30] = Sec 228 * - time_stamp[29:0] = nSec 229 * Formats 0..2 are configured by 230 * CONFIG_PROFILE.cqe_time_stamp_type for PTP traps 231 * Format 3 is used for MIRROR_SESSION traps 232 * Note that Spectrum does not reveal FRC, UTC and Mirror_UTC 233 */ 234 MLXSW_ITEM32(pci, cqe2, time_stamp_low, 0x0C, 16, 16); 235 236 #define MLXSW_PCI_CQE2_MIRROR_TCLASS_INVALID 0x1F 237 238 /* pci_cqe_mirror_tclass 239 * The egress traffic class of the original packet that does mirroring to the 240 * CPU. Value of 0x1F means that the traffic class is invalid. 241 */ 242 MLXSW_ITEM32(pci, cqe2, mirror_tclass, 0x10, 27, 5); 243 244 /* pci_cqe_tx_lag 245 * The Tx port of a packet that is mirrored / sampled to the CPU is a LAG. 246 */ 247 MLXSW_ITEM32(pci, cqe2, tx_lag, 0x10, 24, 1); 248 249 /* pci_cqe_tx_lag_subport 250 * The port index within the LAG of a packet that is mirrored / sampled to the 251 * CPU. Reserved when tx_lag is 0. 252 */ 253 MLXSW_ITEM32(pci, cqe2, tx_lag_subport, 0x10, 16, 8); 254 255 #define MLXSW_PCI_CQE2_TX_PORT_MULTI_PORT 0xFFFE 256 #define MLXSW_PCI_CQE2_TX_PORT_INVALID 0xFFFF 257 258 /* pci_cqe_tx_lag_id 259 * The Tx LAG ID of the original packet that is mirrored / sampled to the CPU. 260 * Value of 0xFFFE means multi-port. Value fo 0xFFFF means that the Tx LAG ID 261 * is invalid. Reserved when tx_lag is 0. 262 */ 263 MLXSW_ITEM32(pci, cqe2, tx_lag_id, 0x10, 0, 16); 264 265 /* pci_cqe_tx_system_port 266 * The Tx port of the original packet that is mirrored / sampled to the CPU. 267 * Value of 0xFFFE means multi-port. Value fo 0xFFFF means that the Tx port is 268 * invalid. Reserved when tx_lag is 1. 269 */ 270 MLXSW_ITEM32(pci, cqe2, tx_system_port, 0x10, 0, 16); 271 272 /* pci_cqe_mirror_cong_low 273 * Congestion level in units of 8KB of the egress traffic class of the original 274 * packet that does mirroring to the CPU. Value of 0xFFFF means that the 275 * congestion level is invalid. 276 */ 277 MLXSW_ITEM32(pci, cqe2, mirror_cong_low, 0x14, 20, 12); 278 279 #define MLXSW_PCI_CQE2_MIRROR_CONG_SHIFT 13 /* Units of 8KB. */ 280 281 static inline u16 mlxsw_pci_cqe2_mirror_cong_get(const char *cqe) 282 { 283 u16 cong_high = mlxsw_pci_cqe2_mirror_cong_high_get(cqe); 284 u16 cong_low = mlxsw_pci_cqe2_mirror_cong_low_get(cqe); 285 286 return cong_high << 12 | cong_low; 287 } 288 289 /* pci_cqe_user_def_val_orig_pkt_len 290 * When trap_id is an ACL: User defined value from policy engine action. 291 */ 292 MLXSW_ITEM32(pci, cqe2, user_def_val_orig_pkt_len, 0x14, 0, 20); 293 294 /* pci_cqe_mirror_reason 295 * Mirror reason. 296 */ 297 MLXSW_ITEM32(pci, cqe2, mirror_reason, 0x18, 24, 8); 298 299 enum mlxsw_pci_cqe_time_stamp_type { 300 MLXSW_PCI_CQE_TIME_STAMP_TYPE_USEC, 301 MLXSW_PCI_CQE_TIME_STAMP_TYPE_FRC, 302 MLXSW_PCI_CQE_TIME_STAMP_TYPE_UTC, 303 MLXSW_PCI_CQE_TIME_STAMP_TYPE_MIRROR_UTC, 304 }; 305 306 /* pci_cqe_time_stamp_type 307 * Time stamp type: 308 * 0: uSec - 1.024uSec (default for devices which do not support 309 * time_stamp_type) 310 * 1: FRC - Free Running Clock - units of 1nSec 311 * 2: UTC 312 * 3: Mirror_UTC. UTC time stamp of the original packet that has 313 * MIRROR_SESSION traps 314 */ 315 MLXSW_ITEM32(pci, cqe2, time_stamp_type, 0x18, 22, 2); 316 317 #define MLXSW_PCI_CQE2_MIRROR_LATENCY_INVALID 0xFFFFFF 318 319 /* pci_cqe_time_stamp_high 320 * Time stamp of the CQE 321 * Format according to time_stamp_type: 322 * 0: uSec - 1.024uSec (default for devices which do not support 323 * time_stamp_type). Only bits 15:0 are valid 324 * 1: FRC - Free Running Clock - units of 1nSec 325 * 2: UTC - time_stamp[37:30] = Sec 326 * - time_stamp[29:0] = nSec 327 * 3: Mirror_UTC. UTC time stamp of the original packet that has 328 * MIRROR_SESSION traps 329 * - time_stamp[37:30] = Sec 330 * - time_stamp[29:0] = nSec 331 * Formats 0..2 are configured by 332 * CONFIG_PROFILE.cqe_time_stamp_type for PTP traps 333 * Format 3 is used for MIRROR_SESSION traps 334 * Note that Spectrum does not reveal FRC, UTC and Mirror_UTC 335 */ 336 MLXSW_ITEM32(pci, cqe2, time_stamp_high, 0x18, 0, 22); 337 338 static inline u64 mlxsw_pci_cqe2_time_stamp_get(const char *cqe) 339 { 340 u64 ts_high = mlxsw_pci_cqe2_time_stamp_high_get(cqe); 341 u64 ts_low = mlxsw_pci_cqe2_time_stamp_low_get(cqe); 342 343 return ts_high << 16 | ts_low; 344 } 345 346 static inline u8 mlxsw_pci_cqe2_time_stamp_sec_get(const char *cqe) 347 { 348 u64 full_ts = mlxsw_pci_cqe2_time_stamp_get(cqe); 349 350 return full_ts >> 30 & 0xFF; 351 } 352 353 static inline u32 mlxsw_pci_cqe2_time_stamp_nsec_get(const char *cqe) 354 { 355 u64 full_ts = mlxsw_pci_cqe2_time_stamp_get(cqe); 356 357 return full_ts & 0x3FFFFFFF; 358 } 359 360 /* pci_cqe_mirror_latency 361 * End-to-end latency of the original packet that does mirroring to the CPU. 362 * Value of 0xFFFFFF means that the latency is invalid. Units are according to 363 * MOGCR.mirror_latency_units. 364 */ 365 MLXSW_ITEM32(pci, cqe2, mirror_latency, 0x1C, 8, 24); 366 367 /* pci_cqe_owner 368 * Ownership bit. 369 */ 370 MLXSW_ITEM32(pci, cqe01, owner, 0x0C, 0, 1); 371 MLXSW_ITEM32(pci, cqe2, owner, 0x1C, 0, 1); 372 mlxsw_pci_cqe_item_helpers(owner, 01, 01, 2); 373 374 /* pci_eqe_event_type 375 * Event type. 376 */ 377 MLXSW_ITEM32(pci, eqe, event_type, 0x0C, 24, 8); 378 #define MLXSW_PCI_EQE_EVENT_TYPE_COMP 0x00 379 #define MLXSW_PCI_EQE_EVENT_TYPE_CMD 0x0A 380 381 /* pci_eqe_event_sub_type 382 * Event type. 383 */ 384 MLXSW_ITEM32(pci, eqe, event_sub_type, 0x0C, 16, 8); 385 386 /* pci_eqe_cqn 387 * Completion Queue that triggered this EQE. 388 */ 389 MLXSW_ITEM32(pci, eqe, cqn, 0x0C, 8, 7); 390 391 /* pci_eqe_owner 392 * Ownership bit. 393 */ 394 MLXSW_ITEM32(pci, eqe, owner, 0x0C, 0, 1); 395 396 /* pci_eqe_cmd_token 397 * Command completion event - token 398 */ 399 MLXSW_ITEM32(pci, eqe, cmd_token, 0x00, 16, 16); 400 401 /* pci_eqe_cmd_status 402 * Command completion event - status 403 */ 404 MLXSW_ITEM32(pci, eqe, cmd_status, 0x00, 0, 8); 405 406 /* pci_eqe_cmd_out_param_h 407 * Command completion event - output parameter - higher part 408 */ 409 MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x04, 0, 32); 410 411 /* pci_eqe_cmd_out_param_l 412 * Command completion event - output parameter - lower part 413 */ 414 MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x08, 0, 32); 415 416 #endif 417