1 /* bnx2x_sriov.c: QLogic Everest network driver. 2 * 3 * Copyright 2009-2013 Broadcom Corporation 4 * Copyright 2014 QLogic Corporation 5 * All rights reserved 6 * 7 * Unless you and QLogic execute a separate written software license 8 * agreement governing use of this software, this software is licensed to you 9 * under the terms of the GNU General Public License version 2, available 10 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). 11 * 12 * Notwithstanding the above, under no circumstances may you combine this 13 * software in any way with any other QLogic software provided under a 14 * license other than the GPL, without QLogic's express prior written 15 * consent. 16 * 17 * Maintained by: Ariel Elior <ariel.elior@qlogic.com> 18 * Written by: Shmulik Ravid 19 * Ariel Elior <ariel.elior@qlogic.com> 20 * 21 */ 22 #include "bnx2x.h" 23 #include "bnx2x_init.h" 24 #include "bnx2x_cmn.h" 25 #include "bnx2x_sp.h" 26 #include <linux/crc32.h> 27 #include <linux/if_vlan.h> 28 29 static int bnx2x_vf_op_prep(struct bnx2x *bp, int vfidx, 30 struct bnx2x_virtf **vf, 31 struct pf_vf_bulletin_content **bulletin, 32 bool test_queue); 33 34 /* General service functions */ 35 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid, 36 u16 pf_id) 37 { 38 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid), 39 pf_id); 40 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid), 41 pf_id); 42 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid), 43 pf_id); 44 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid), 45 pf_id); 46 } 47 48 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid, 49 u8 enable) 50 { 51 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid), 52 enable); 53 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid), 54 enable); 55 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid), 56 enable); 57 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid), 58 enable); 59 } 60 61 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid) 62 { 63 int idx; 64 65 for_each_vf(bp, idx) 66 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid) 67 break; 68 return idx; 69 } 70 71 static 72 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid) 73 { 74 u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid); 75 return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL; 76 } 77 78 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf, 79 u8 igu_sb_id, u8 segment, u16 index, u8 op, 80 u8 update) 81 { 82 /* acking a VF sb through the PF - use the GRC */ 83 u32 ctl; 84 u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA; 85 u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL; 86 u32 func_encode = vf->abs_vfid; 87 u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id; 88 struct igu_regular cmd_data = {0}; 89 90 cmd_data.sb_id_and_flags = 91 ((index << IGU_REGULAR_SB_INDEX_SHIFT) | 92 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | 93 (update << IGU_REGULAR_BUPDATE_SHIFT) | 94 (op << IGU_REGULAR_ENABLE_INT_SHIFT)); 95 96 ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT | 97 func_encode << IGU_CTRL_REG_FID_SHIFT | 98 IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT; 99 100 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", 101 cmd_data.sb_id_and_flags, igu_addr_data); 102 REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags); 103 barrier(); 104 105 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", 106 ctl, igu_addr_ctl); 107 REG_WR(bp, igu_addr_ctl, ctl); 108 barrier(); 109 } 110 111 static bool bnx2x_validate_vf_sp_objs(struct bnx2x *bp, 112 struct bnx2x_virtf *vf, 113 bool print_err) 114 { 115 if (!bnx2x_leading_vfq(vf, sp_initialized)) { 116 if (print_err) 117 BNX2X_ERR("Slowpath objects not yet initialized!\n"); 118 else 119 DP(BNX2X_MSG_IOV, "Slowpath objects not yet initialized!\n"); 120 return false; 121 } 122 return true; 123 } 124 125 /* VFOP operations states */ 126 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf, 127 struct bnx2x_queue_init_params *init_params, 128 struct bnx2x_queue_setup_params *setup_params, 129 u16 q_idx, u16 sb_idx) 130 { 131 DP(BNX2X_MSG_IOV, 132 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d", 133 vf->abs_vfid, 134 q_idx, 135 sb_idx, 136 init_params->tx.sb_cq_index, 137 init_params->tx.hc_rate, 138 setup_params->flags, 139 setup_params->txq_params.traffic_type); 140 } 141 142 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf, 143 struct bnx2x_queue_init_params *init_params, 144 struct bnx2x_queue_setup_params *setup_params, 145 u16 q_idx, u16 sb_idx) 146 { 147 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params; 148 149 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n" 150 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n", 151 vf->abs_vfid, 152 q_idx, 153 sb_idx, 154 init_params->rx.sb_cq_index, 155 init_params->rx.hc_rate, 156 setup_params->gen_params.mtu, 157 rxq_params->buf_sz, 158 rxq_params->sge_buf_sz, 159 rxq_params->max_sges_pkt, 160 rxq_params->tpa_agg_sz, 161 setup_params->flags, 162 rxq_params->drop_flags, 163 rxq_params->cache_line_log); 164 } 165 166 void bnx2x_vfop_qctor_prep(struct bnx2x *bp, 167 struct bnx2x_virtf *vf, 168 struct bnx2x_vf_queue *q, 169 struct bnx2x_vf_queue_construct_params *p, 170 unsigned long q_type) 171 { 172 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init; 173 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup; 174 175 /* INIT */ 176 177 /* Enable host coalescing in the transition to INIT state */ 178 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags)) 179 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags); 180 181 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags)) 182 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags); 183 184 /* FW SB ID */ 185 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 186 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 187 188 /* context */ 189 init_p->cxts[0] = q->cxt; 190 191 /* SETUP */ 192 193 /* Setup-op general parameters */ 194 setup_p->gen_params.spcl_id = vf->sp_cl_id; 195 setup_p->gen_params.stat_id = vfq_stat_id(vf, q); 196 setup_p->gen_params.fp_hsi = vf->fp_hsi; 197 198 /* Setup-op flags: 199 * collect statistics, zero statistics, local-switching, security, 200 * OV for Flex10, RSS and MCAST for leading 201 */ 202 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags)) 203 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags); 204 205 /* for VFs, enable tx switching, bd coherency, and mac address 206 * anti-spoofing 207 */ 208 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags); 209 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags); 210 if (vf->spoofchk) 211 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags); 212 else 213 __clear_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags); 214 215 /* Setup-op rx parameters */ 216 if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) { 217 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params; 218 219 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q); 220 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx); 221 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid); 222 223 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags)) 224 rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES; 225 } 226 227 /* Setup-op tx parameters */ 228 if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) { 229 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss; 230 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 231 } 232 } 233 234 static int bnx2x_vf_queue_create(struct bnx2x *bp, 235 struct bnx2x_virtf *vf, int qid, 236 struct bnx2x_vf_queue_construct_params *qctor) 237 { 238 struct bnx2x_queue_state_params *q_params; 239 int rc = 0; 240 241 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid); 242 243 /* Prepare ramrod information */ 244 q_params = &qctor->qstate; 245 q_params->q_obj = &bnx2x_vfq(vf, qid, sp_obj); 246 set_bit(RAMROD_COMP_WAIT, &q_params->ramrod_flags); 247 248 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) == 249 BNX2X_Q_LOGICAL_STATE_ACTIVE) { 250 DP(BNX2X_MSG_IOV, "queue was already up. Aborting gracefully\n"); 251 goto out; 252 } 253 254 /* Run Queue 'construction' ramrods */ 255 q_params->cmd = BNX2X_Q_CMD_INIT; 256 rc = bnx2x_queue_state_change(bp, q_params); 257 if (rc) 258 goto out; 259 260 memcpy(&q_params->params.setup, &qctor->prep_qsetup, 261 sizeof(struct bnx2x_queue_setup_params)); 262 q_params->cmd = BNX2X_Q_CMD_SETUP; 263 rc = bnx2x_queue_state_change(bp, q_params); 264 if (rc) 265 goto out; 266 267 /* enable interrupts */ 268 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, bnx2x_vfq(vf, qid, sb_idx)), 269 USTORM_ID, 0, IGU_INT_ENABLE, 0); 270 out: 271 return rc; 272 } 273 274 static int bnx2x_vf_queue_destroy(struct bnx2x *bp, struct bnx2x_virtf *vf, 275 int qid) 276 { 277 enum bnx2x_queue_cmd cmds[] = {BNX2X_Q_CMD_HALT, 278 BNX2X_Q_CMD_TERMINATE, 279 BNX2X_Q_CMD_CFC_DEL}; 280 struct bnx2x_queue_state_params q_params; 281 int rc, i; 282 283 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 284 285 /* Prepare ramrod information */ 286 memset(&q_params, 0, sizeof(struct bnx2x_queue_state_params)); 287 q_params.q_obj = &bnx2x_vfq(vf, qid, sp_obj); 288 set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags); 289 290 if (bnx2x_get_q_logical_state(bp, q_params.q_obj) == 291 BNX2X_Q_LOGICAL_STATE_STOPPED) { 292 DP(BNX2X_MSG_IOV, "queue was already stopped. Aborting gracefully\n"); 293 goto out; 294 } 295 296 /* Run Queue 'destruction' ramrods */ 297 for (i = 0; i < ARRAY_SIZE(cmds); i++) { 298 q_params.cmd = cmds[i]; 299 rc = bnx2x_queue_state_change(bp, &q_params); 300 if (rc) { 301 BNX2X_ERR("Failed to run Queue command %d\n", cmds[i]); 302 return rc; 303 } 304 } 305 out: 306 /* Clean Context */ 307 if (bnx2x_vfq(vf, qid, cxt)) { 308 bnx2x_vfq(vf, qid, cxt)->ustorm_ag_context.cdu_usage = 0; 309 bnx2x_vfq(vf, qid, cxt)->xstorm_ag_context.cdu_reserved = 0; 310 } 311 312 return 0; 313 } 314 315 static void 316 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid) 317 { 318 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 319 if (vf) { 320 /* the first igu entry belonging to VFs of this PF */ 321 if (!BP_VFDB(bp)->first_vf_igu_entry) 322 BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id; 323 324 /* the first igu entry belonging to this VF */ 325 if (!vf_sb_count(vf)) 326 vf->igu_base_id = igu_sb_id; 327 328 ++vf_sb_count(vf); 329 ++vf->sb_count; 330 } 331 BP_VFDB(bp)->vf_sbs_pool++; 332 } 333 334 static inline void bnx2x_vf_vlan_credit(struct bnx2x *bp, 335 struct bnx2x_vlan_mac_obj *obj, 336 atomic_t *counter) 337 { 338 struct list_head *pos; 339 int read_lock; 340 int cnt = 0; 341 342 read_lock = bnx2x_vlan_mac_h_read_lock(bp, obj); 343 if (read_lock) 344 DP(BNX2X_MSG_SP, "Failed to take vlan mac read head; continuing anyway\n"); 345 346 list_for_each(pos, &obj->head) 347 cnt++; 348 349 if (!read_lock) 350 bnx2x_vlan_mac_h_read_unlock(bp, obj); 351 352 atomic_set(counter, cnt); 353 } 354 355 static int bnx2x_vf_vlan_mac_clear(struct bnx2x *bp, struct bnx2x_virtf *vf, 356 int qid, bool drv_only, int type) 357 { 358 struct bnx2x_vlan_mac_ramrod_params ramrod; 359 int rc; 360 361 DP(BNX2X_MSG_IOV, "vf[%d] - deleting all %s\n", vf->abs_vfid, 362 (type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MACs" : 363 (type == BNX2X_VF_FILTER_MAC) ? "MACs" : "VLANs"); 364 365 /* Prepare ramrod params */ 366 memset(&ramrod, 0, sizeof(struct bnx2x_vlan_mac_ramrod_params)); 367 if (type == BNX2X_VF_FILTER_VLAN_MAC) { 368 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags); 369 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_mac_obj); 370 } else if (type == BNX2X_VF_FILTER_MAC) { 371 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags); 372 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); 373 } else { 374 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 375 } 376 ramrod.user_req.cmd = BNX2X_VLAN_MAC_DEL; 377 378 set_bit(RAMROD_EXEC, &ramrod.ramrod_flags); 379 if (drv_only) 380 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod.ramrod_flags); 381 else 382 set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags); 383 384 /* Start deleting */ 385 rc = ramrod.vlan_mac_obj->delete_all(bp, 386 ramrod.vlan_mac_obj, 387 &ramrod.user_req.vlan_mac_flags, 388 &ramrod.ramrod_flags); 389 if (rc) { 390 BNX2X_ERR("Failed to delete all %s\n", 391 (type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MACs" : 392 (type == BNX2X_VF_FILTER_MAC) ? "MACs" : "VLANs"); 393 return rc; 394 } 395 396 return 0; 397 } 398 399 static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp, 400 struct bnx2x_virtf *vf, int qid, 401 struct bnx2x_vf_mac_vlan_filter *filter, 402 bool drv_only) 403 { 404 struct bnx2x_vlan_mac_ramrod_params ramrod; 405 int rc; 406 407 DP(BNX2X_MSG_IOV, "vf[%d] - %s a %s filter\n", 408 vf->abs_vfid, filter->add ? "Adding" : "Deleting", 409 (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ? "VLAN-MAC" : 410 (filter->type == BNX2X_VF_FILTER_MAC) ? "MAC" : "VLAN"); 411 412 /* Prepare ramrod params */ 413 memset(&ramrod, 0, sizeof(struct bnx2x_vlan_mac_ramrod_params)); 414 if (filter->type == BNX2X_VF_FILTER_VLAN_MAC) { 415 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_mac_obj); 416 ramrod.user_req.u.vlan.vlan = filter->vid; 417 memcpy(&ramrod.user_req.u.mac.mac, filter->mac, ETH_ALEN); 418 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags); 419 } else if (filter->type == BNX2X_VF_FILTER_VLAN) { 420 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 421 ramrod.user_req.u.vlan.vlan = filter->vid; 422 } else { 423 set_bit(BNX2X_ETH_MAC, &ramrod.user_req.vlan_mac_flags); 424 ramrod.vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); 425 memcpy(&ramrod.user_req.u.mac.mac, filter->mac, ETH_ALEN); 426 } 427 ramrod.user_req.cmd = filter->add ? BNX2X_VLAN_MAC_ADD : 428 BNX2X_VLAN_MAC_DEL; 429 430 set_bit(RAMROD_EXEC, &ramrod.ramrod_flags); 431 if (drv_only) 432 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod.ramrod_flags); 433 else 434 set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags); 435 436 /* Add/Remove the filter */ 437 rc = bnx2x_config_vlan_mac(bp, &ramrod); 438 if (rc == -EEXIST) 439 return 0; 440 if (rc) { 441 BNX2X_ERR("Failed to %s %s\n", 442 filter->add ? "add" : "delete", 443 (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ? 444 "VLAN-MAC" : 445 (filter->type == BNX2X_VF_FILTER_MAC) ? 446 "MAC" : "VLAN"); 447 return rc; 448 } 449 450 filter->applied = true; 451 452 return 0; 453 } 454 455 int bnx2x_vf_mac_vlan_config_list(struct bnx2x *bp, struct bnx2x_virtf *vf, 456 struct bnx2x_vf_mac_vlan_filters *filters, 457 int qid, bool drv_only) 458 { 459 int rc = 0, i; 460 461 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 462 463 if (!bnx2x_validate_vf_sp_objs(bp, vf, true)) 464 return -EINVAL; 465 466 /* Prepare ramrod params */ 467 for (i = 0; i < filters->count; i++) { 468 rc = bnx2x_vf_mac_vlan_config(bp, vf, qid, 469 &filters->filters[i], drv_only); 470 if (rc) 471 break; 472 } 473 474 /* Rollback if needed */ 475 if (i != filters->count) { 476 BNX2X_ERR("Managed only %d/%d filters - rolling back\n", 477 i, filters->count); 478 while (--i >= 0) { 479 if (!filters->filters[i].applied) 480 continue; 481 filters->filters[i].add = !filters->filters[i].add; 482 bnx2x_vf_mac_vlan_config(bp, vf, qid, 483 &filters->filters[i], 484 drv_only); 485 } 486 } 487 488 /* It's our responsibility to free the filters */ 489 kfree(filters); 490 491 return rc; 492 } 493 494 int bnx2x_vf_queue_setup(struct bnx2x *bp, struct bnx2x_virtf *vf, int qid, 495 struct bnx2x_vf_queue_construct_params *qctor) 496 { 497 int rc; 498 499 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid); 500 501 rc = bnx2x_vf_queue_create(bp, vf, qid, qctor); 502 if (rc) 503 goto op_err; 504 505 /* Schedule the configuration of any pending vlan filters */ 506 bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_HYPERVISOR_VLAN, 507 BNX2X_MSG_IOV); 508 return 0; 509 op_err: 510 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, rc); 511 return rc; 512 } 513 514 static int bnx2x_vf_queue_flr(struct bnx2x *bp, struct bnx2x_virtf *vf, 515 int qid) 516 { 517 int rc; 518 519 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid); 520 521 /* If needed, clean the filtering data base */ 522 if ((qid == LEADING_IDX) && 523 bnx2x_validate_vf_sp_objs(bp, vf, false)) { 524 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true, 525 BNX2X_VF_FILTER_VLAN_MAC); 526 if (rc) 527 goto op_err; 528 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true, 529 BNX2X_VF_FILTER_VLAN); 530 if (rc) 531 goto op_err; 532 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, true, 533 BNX2X_VF_FILTER_MAC); 534 if (rc) 535 goto op_err; 536 } 537 538 /* Terminate queue */ 539 if (bnx2x_vfq(vf, qid, sp_obj).state != BNX2X_Q_STATE_RESET) { 540 struct bnx2x_queue_state_params qstate; 541 542 memset(&qstate, 0, sizeof(struct bnx2x_queue_state_params)); 543 qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj); 544 qstate.q_obj->state = BNX2X_Q_STATE_STOPPED; 545 qstate.cmd = BNX2X_Q_CMD_TERMINATE; 546 set_bit(RAMROD_COMP_WAIT, &qstate.ramrod_flags); 547 rc = bnx2x_queue_state_change(bp, &qstate); 548 if (rc) 549 goto op_err; 550 } 551 552 return 0; 553 op_err: 554 BNX2X_ERR("vf[%d:%d] error: rc %d\n", vf->abs_vfid, qid, rc); 555 return rc; 556 } 557 558 int bnx2x_vf_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf, 559 bnx2x_mac_addr_t *mcasts, int mc_num, bool drv_only) 560 { 561 struct bnx2x_mcast_list_elem *mc = NULL; 562 struct bnx2x_mcast_ramrod_params mcast; 563 int rc, i; 564 565 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 566 567 /* Prepare Multicast command */ 568 memset(&mcast, 0, sizeof(struct bnx2x_mcast_ramrod_params)); 569 mcast.mcast_obj = &vf->mcast_obj; 570 if (drv_only) 571 set_bit(RAMROD_DRV_CLR_ONLY, &mcast.ramrod_flags); 572 else 573 set_bit(RAMROD_COMP_WAIT, &mcast.ramrod_flags); 574 if (mc_num) { 575 mc = kcalloc(mc_num, sizeof(struct bnx2x_mcast_list_elem), 576 GFP_KERNEL); 577 if (!mc) { 578 BNX2X_ERR("Cannot Configure multicasts due to lack of memory\n"); 579 return -ENOMEM; 580 } 581 } 582 583 if (mc_num) { 584 INIT_LIST_HEAD(&mcast.mcast_list); 585 for (i = 0; i < mc_num; i++) { 586 mc[i].mac = mcasts[i]; 587 list_add_tail(&mc[i].link, 588 &mcast.mcast_list); 589 } 590 591 /* add new mcasts */ 592 mcast.mcast_list_len = mc_num; 593 rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_SET); 594 if (rc) 595 BNX2X_ERR("Failed to set multicasts\n"); 596 } else { 597 /* clear existing mcasts */ 598 rc = bnx2x_config_mcast(bp, &mcast, BNX2X_MCAST_CMD_DEL); 599 if (rc) 600 BNX2X_ERR("Failed to remove multicasts\n"); 601 } 602 603 kfree(mc); 604 605 return rc; 606 } 607 608 static void bnx2x_vf_prep_rx_mode(struct bnx2x *bp, u8 qid, 609 struct bnx2x_rx_mode_ramrod_params *ramrod, 610 struct bnx2x_virtf *vf, 611 unsigned long accept_flags) 612 { 613 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid); 614 615 memset(ramrod, 0, sizeof(*ramrod)); 616 ramrod->cid = vfq->cid; 617 ramrod->cl_id = vfq_cl_id(vf, vfq); 618 ramrod->rx_mode_obj = &bp->rx_mode_obj; 619 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid); 620 ramrod->rx_accept_flags = accept_flags; 621 ramrod->tx_accept_flags = accept_flags; 622 ramrod->pstate = &vf->filter_state; 623 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING; 624 625 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state); 626 set_bit(RAMROD_RX, &ramrod->ramrod_flags); 627 set_bit(RAMROD_TX, &ramrod->ramrod_flags); 628 629 ramrod->rdata = bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2); 630 ramrod->rdata_mapping = bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2); 631 } 632 633 int bnx2x_vf_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf, 634 int qid, unsigned long accept_flags) 635 { 636 struct bnx2x_rx_mode_ramrod_params ramrod; 637 638 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 639 640 bnx2x_vf_prep_rx_mode(bp, qid, &ramrod, vf, accept_flags); 641 set_bit(RAMROD_COMP_WAIT, &ramrod.ramrod_flags); 642 vfq_get(vf, qid)->accept_flags = ramrod.rx_accept_flags; 643 return bnx2x_config_rx_mode(bp, &ramrod); 644 } 645 646 int bnx2x_vf_queue_teardown(struct bnx2x *bp, struct bnx2x_virtf *vf, int qid) 647 { 648 int rc; 649 650 DP(BNX2X_MSG_IOV, "vf[%d:%d]\n", vf->abs_vfid, qid); 651 652 /* Remove all classification configuration for leading queue */ 653 if (qid == LEADING_IDX) { 654 rc = bnx2x_vf_rxmode(bp, vf, qid, 0); 655 if (rc) 656 goto op_err; 657 658 /* Remove filtering if feasible */ 659 if (bnx2x_validate_vf_sp_objs(bp, vf, true)) { 660 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, 661 false, 662 BNX2X_VF_FILTER_VLAN_MAC); 663 if (rc) 664 goto op_err; 665 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, 666 false, 667 BNX2X_VF_FILTER_VLAN); 668 if (rc) 669 goto op_err; 670 rc = bnx2x_vf_vlan_mac_clear(bp, vf, qid, 671 false, 672 BNX2X_VF_FILTER_MAC); 673 if (rc) 674 goto op_err; 675 rc = bnx2x_vf_mcast(bp, vf, NULL, 0, false); 676 if (rc) 677 goto op_err; 678 } 679 } 680 681 /* Destroy queue */ 682 rc = bnx2x_vf_queue_destroy(bp, vf, qid); 683 if (rc) 684 goto op_err; 685 return rc; 686 op_err: 687 BNX2X_ERR("vf[%d:%d] error: rc %d\n", 688 vf->abs_vfid, qid, rc); 689 return rc; 690 } 691 692 /* VF enable primitives 693 * when pretend is required the caller is responsible 694 * for calling pretend prior to calling these routines 695 */ 696 697 /* internal vf enable - until vf is enabled internally all transactions 698 * are blocked. This routine should always be called last with pretend. 699 */ 700 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable) 701 { 702 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0); 703 } 704 705 /* clears vf error in all semi blocks */ 706 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid) 707 { 708 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid); 709 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid); 710 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid); 711 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid); 712 } 713 714 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid) 715 { 716 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5; 717 u32 was_err_reg = 0; 718 719 switch (was_err_group) { 720 case 0: 721 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR; 722 break; 723 case 1: 724 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR; 725 break; 726 case 2: 727 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR; 728 break; 729 case 3: 730 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR; 731 break; 732 } 733 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f)); 734 } 735 736 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf) 737 { 738 int i; 739 u32 val; 740 741 /* Set VF masks and configuration - pretend */ 742 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 743 744 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0); 745 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0); 746 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0); 747 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0); 748 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0); 749 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0); 750 751 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION); 752 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN); 753 val &= ~IGU_VF_CONF_PARENT_MASK; 754 val |= (BP_ABS_FUNC(bp) >> 1) << IGU_VF_CONF_PARENT_SHIFT; 755 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); 756 757 DP(BNX2X_MSG_IOV, 758 "value in IGU_REG_VF_CONFIGURATION of vf %d after write is 0x%08x\n", 759 vf->abs_vfid, val); 760 761 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 762 763 /* iterate over all queues, clear sb consumer */ 764 for (i = 0; i < vf_sb_count(vf); i++) { 765 u8 igu_sb_id = vf_igu_sb(vf, i); 766 767 /* zero prod memory */ 768 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0); 769 770 /* clear sb state machine */ 771 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id, 772 false /* VF */); 773 774 /* disable + update */ 775 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0, 776 IGU_INT_DISABLE, 1); 777 } 778 } 779 780 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid) 781 { 782 /* set the VF-PF association in the FW */ 783 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp)); 784 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1); 785 786 /* clear vf errors*/ 787 bnx2x_vf_semi_clear_err(bp, abs_vfid); 788 bnx2x_vf_pglue_clear_err(bp, abs_vfid); 789 790 /* internal vf-enable - pretend */ 791 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid)); 792 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid); 793 bnx2x_vf_enable_internal(bp, true); 794 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 795 } 796 797 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf) 798 { 799 /* Reset vf in IGU interrupts are still disabled */ 800 bnx2x_vf_igu_reset(bp, vf); 801 802 /* pretend to enable the vf with the PBF */ 803 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 804 REG_WR(bp, PBF_REG_DISABLE_VF, 0); 805 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 806 } 807 808 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid) 809 { 810 struct pci_dev *dev; 811 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 812 813 if (!vf) 814 return false; 815 816 dev = pci_get_domain_bus_and_slot(vf->domain, vf->bus, vf->devfn); 817 if (dev) 818 return bnx2x_is_pcie_pending(dev); 819 return false; 820 } 821 822 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid) 823 { 824 /* Verify no pending pci transactions */ 825 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid)) 826 BNX2X_ERR("PCIE Transactions still pending\n"); 827 828 return 0; 829 } 830 831 /* must be called after the number of PF queues and the number of VFs are 832 * both known 833 */ 834 static void 835 bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf) 836 { 837 struct vf_pf_resc_request *resc = &vf->alloc_resc; 838 839 /* will be set only during VF-ACQUIRE */ 840 resc->num_rxqs = 0; 841 resc->num_txqs = 0; 842 843 resc->num_mac_filters = VF_MAC_CREDIT_CNT; 844 resc->num_vlan_filters = VF_VLAN_CREDIT_CNT; 845 846 /* no real limitation */ 847 resc->num_mc_filters = 0; 848 849 /* num_sbs already set */ 850 resc->num_sbs = vf->sb_count; 851 } 852 853 /* FLR routines: */ 854 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf) 855 { 856 /* reset the state variables */ 857 bnx2x_iov_static_resc(bp, vf); 858 vf->state = VF_FREE; 859 } 860 861 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf) 862 { 863 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp); 864 865 /* DQ usage counter */ 866 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 867 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT, 868 "DQ VF usage counter timed out", 869 poll_cnt); 870 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 871 872 /* FW cleanup command - poll for the results */ 873 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid), 874 poll_cnt)) 875 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid); 876 877 /* verify TX hw is flushed */ 878 bnx2x_tx_hw_flushed(bp, poll_cnt); 879 } 880 881 static void bnx2x_vf_flr(struct bnx2x *bp, struct bnx2x_virtf *vf) 882 { 883 int rc, i; 884 885 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 886 887 /* the cleanup operations are valid if and only if the VF 888 * was first acquired. 889 */ 890 for (i = 0; i < vf_rxq_count(vf); i++) { 891 rc = bnx2x_vf_queue_flr(bp, vf, i); 892 if (rc) 893 goto out; 894 } 895 896 /* remove multicasts */ 897 bnx2x_vf_mcast(bp, vf, NULL, 0, true); 898 899 /* dispatch final cleanup and wait for HW queues to flush */ 900 bnx2x_vf_flr_clnup_hw(bp, vf); 901 902 /* release VF resources */ 903 bnx2x_vf_free_resc(bp, vf); 904 905 vf->malicious = false; 906 907 /* re-open the mailbox */ 908 bnx2x_vf_enable_mbx(bp, vf->abs_vfid); 909 return; 910 out: 911 BNX2X_ERR("vf[%d:%d] failed flr: rc %d\n", 912 vf->abs_vfid, i, rc); 913 } 914 915 static void bnx2x_vf_flr_clnup(struct bnx2x *bp) 916 { 917 struct bnx2x_virtf *vf; 918 int i; 919 920 for (i = 0; i < BNX2X_NR_VIRTFN(bp); i++) { 921 /* VF should be RESET & in FLR cleanup states */ 922 if (bnx2x_vf(bp, i, state) != VF_RESET || 923 !bnx2x_vf(bp, i, flr_clnup_stage)) 924 continue; 925 926 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", 927 i, BNX2X_NR_VIRTFN(bp)); 928 929 vf = BP_VF(bp, i); 930 931 /* lock the vf pf channel */ 932 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR); 933 934 /* invoke the VF FLR SM */ 935 bnx2x_vf_flr(bp, vf); 936 937 /* mark the VF to be ACKED and continue */ 938 vf->flr_clnup_stage = false; 939 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR); 940 } 941 942 /* Acknowledge the handled VFs. 943 * we are acknowledge all the vfs which an flr was requested for, even 944 * if amongst them there are such that we never opened, since the mcp 945 * will interrupt us immediately again if we only ack some of the bits, 946 * resulting in an endless loop. This can happen for example in KVM 947 * where an 'all ones' flr request is sometimes given by hyper visor 948 */ 949 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n", 950 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]); 951 for (i = 0; i < FLRD_VFS_DWORDS; i++) 952 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 953 bp->vfdb->flrd_vfs[i]); 954 955 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0); 956 957 /* clear the acked bits - better yet if the MCP implemented 958 * write to clear semantics 959 */ 960 for (i = 0; i < FLRD_VFS_DWORDS; i++) 961 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0); 962 } 963 964 void bnx2x_vf_handle_flr_event(struct bnx2x *bp) 965 { 966 int i; 967 968 /* Read FLR'd VFs */ 969 for (i = 0; i < FLRD_VFS_DWORDS; i++) 970 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]); 971 972 DP(BNX2X_MSG_MCP, 973 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n", 974 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]); 975 976 for_each_vf(bp, i) { 977 struct bnx2x_virtf *vf = BP_VF(bp, i); 978 u32 reset = 0; 979 980 if (vf->abs_vfid < 32) 981 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid); 982 else 983 reset = bp->vfdb->flrd_vfs[1] & 984 (1 << (vf->abs_vfid - 32)); 985 986 if (reset) { 987 /* set as reset and ready for cleanup */ 988 vf->state = VF_RESET; 989 vf->flr_clnup_stage = true; 990 991 DP(BNX2X_MSG_IOV, 992 "Initiating Final cleanup for VF %d\n", 993 vf->abs_vfid); 994 } 995 } 996 997 /* do the FLR cleanup for all marked VFs*/ 998 bnx2x_vf_flr_clnup(bp); 999 } 1000 1001 /* IOV global initialization routines */ 1002 void bnx2x_iov_init_dq(struct bnx2x *bp) 1003 { 1004 if (!IS_SRIOV(bp)) 1005 return; 1006 1007 /* Set the DQ such that the CID reflect the abs_vfid */ 1008 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0); 1009 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS)); 1010 1011 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to 1012 * the PF L2 queues 1013 */ 1014 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID); 1015 1016 /* The VF window size is the log2 of the max number of CIDs per VF */ 1017 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND); 1018 1019 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match 1020 * the Pf doorbell size although the 2 are independent. 1021 */ 1022 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 3); 1023 1024 /* No security checks for now - 1025 * configure single rule (out of 16) mask = 0x1, value = 0x0, 1026 * CID range 0 - 0x1ffff 1027 */ 1028 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1); 1029 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0); 1030 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0); 1031 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff); 1032 1033 /* set the VF doorbell threshold. This threshold represents the amount 1034 * of doorbells allowed in the main DORQ fifo for a specific VF. 1035 */ 1036 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 64); 1037 } 1038 1039 void bnx2x_iov_init_dmae(struct bnx2x *bp) 1040 { 1041 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV)) 1042 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0); 1043 } 1044 1045 static int bnx2x_vf_domain(struct bnx2x *bp, int vfid) 1046 { 1047 struct pci_dev *dev = bp->pdev; 1048 1049 return pci_domain_nr(dev->bus); 1050 } 1051 1052 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid) 1053 { 1054 struct pci_dev *dev = bp->pdev; 1055 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1056 1057 return dev->bus->number + ((dev->devfn + iov->offset + 1058 iov->stride * vfid) >> 8); 1059 } 1060 1061 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid) 1062 { 1063 struct pci_dev *dev = bp->pdev; 1064 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1065 1066 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff; 1067 } 1068 1069 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf) 1070 { 1071 int i, n; 1072 struct pci_dev *dev = bp->pdev; 1073 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1074 1075 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) { 1076 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i); 1077 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i); 1078 1079 size /= iov->total; 1080 vf->bars[n].bar = start + size * vf->abs_vfid; 1081 vf->bars[n].size = size; 1082 } 1083 } 1084 1085 static int 1086 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp) 1087 { 1088 int sb_id; 1089 u32 val; 1090 u8 fid, current_pf = 0; 1091 1092 /* IGU in normal mode - read CAM */ 1093 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) { 1094 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4); 1095 if (!(val & IGU_REG_MAPPING_MEMORY_VALID)) 1096 continue; 1097 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID); 1098 if (fid & IGU_FID_ENCODE_IS_PF) 1099 current_pf = fid & IGU_FID_PF_NUM_MASK; 1100 else if (current_pf == BP_FUNC(bp)) 1101 bnx2x_vf_set_igu_info(bp, sb_id, 1102 (fid & IGU_FID_VF_NUM_MASK)); 1103 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n", 1104 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"), 1105 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) : 1106 (fid & IGU_FID_VF_NUM_MASK)), sb_id, 1107 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)); 1108 } 1109 DP(BNX2X_MSG_IOV, "vf_sbs_pool is %d\n", BP_VFDB(bp)->vf_sbs_pool); 1110 return BP_VFDB(bp)->vf_sbs_pool; 1111 } 1112 1113 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp) 1114 { 1115 if (bp->vfdb) { 1116 kfree(bp->vfdb->vfqs); 1117 kfree(bp->vfdb->vfs); 1118 kfree(bp->vfdb); 1119 } 1120 bp->vfdb = NULL; 1121 } 1122 1123 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov) 1124 { 1125 int pos; 1126 struct pci_dev *dev = bp->pdev; 1127 1128 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); 1129 if (!pos) { 1130 BNX2X_ERR("failed to find SRIOV capability in device\n"); 1131 return -ENODEV; 1132 } 1133 1134 iov->pos = pos; 1135 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos); 1136 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl); 1137 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total); 1138 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial); 1139 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset); 1140 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride); 1141 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz); 1142 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap); 1143 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link); 1144 1145 return 0; 1146 } 1147 1148 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov) 1149 { 1150 u32 val; 1151 1152 /* read the SRIOV capability structure 1153 * The fields can be read via configuration read or 1154 * directly from the device (starting at offset PCICFG_OFFSET) 1155 */ 1156 if (bnx2x_sriov_pci_cfg_info(bp, iov)) 1157 return -ENODEV; 1158 1159 /* get the number of SRIOV bars */ 1160 iov->nres = 0; 1161 1162 /* read the first_vfid */ 1163 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF); 1164 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK) 1165 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp)); 1166 1167 DP(BNX2X_MSG_IOV, 1168 "IOV info[%d]: first vf %d, nres %d, cap 0x%x, ctrl 0x%x, total %d, initial %d, num vfs %d, offset %d, stride %d, page size 0x%x\n", 1169 BP_FUNC(bp), 1170 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total, 1171 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz); 1172 1173 return 0; 1174 } 1175 1176 /* must be called after PF bars are mapped */ 1177 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param, 1178 int num_vfs_param) 1179 { 1180 int err, i; 1181 struct bnx2x_sriov *iov; 1182 struct pci_dev *dev = bp->pdev; 1183 1184 bp->vfdb = NULL; 1185 1186 /* verify is pf */ 1187 if (IS_VF(bp)) 1188 return 0; 1189 1190 /* verify sriov capability is present in configuration space */ 1191 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV)) 1192 return 0; 1193 1194 /* verify chip revision */ 1195 if (CHIP_IS_E1x(bp)) 1196 return 0; 1197 1198 /* check if SRIOV support is turned off */ 1199 if (!num_vfs_param) 1200 return 0; 1201 1202 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */ 1203 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) { 1204 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n", 1205 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID); 1206 return 0; 1207 } 1208 1209 /* SRIOV can be enabled only with MSIX */ 1210 if (int_mode_param == BNX2X_INT_MODE_MSI || 1211 int_mode_param == BNX2X_INT_MODE_INTX) { 1212 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n"); 1213 return 0; 1214 } 1215 1216 err = -EIO; 1217 /* verify ari is enabled */ 1218 if (!pci_ari_enabled(bp->pdev->bus)) { 1219 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n"); 1220 return 0; 1221 } 1222 1223 /* verify igu is in normal mode */ 1224 if (CHIP_INT_MODE_IS_BC(bp)) { 1225 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n"); 1226 return 0; 1227 } 1228 1229 /* allocate the vfs database */ 1230 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL); 1231 if (!bp->vfdb) { 1232 BNX2X_ERR("failed to allocate vf database\n"); 1233 err = -ENOMEM; 1234 goto failed; 1235 } 1236 1237 /* get the sriov info - Linux already collected all the pertinent 1238 * information, however the sriov structure is for the private use 1239 * of the pci module. Also we want this information regardless 1240 * of the hyper-visor. 1241 */ 1242 iov = &(bp->vfdb->sriov); 1243 err = bnx2x_sriov_info(bp, iov); 1244 if (err) 1245 goto failed; 1246 1247 /* SR-IOV capability was enabled but there are no VFs*/ 1248 if (iov->total == 0) 1249 goto failed; 1250 1251 iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param); 1252 1253 DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n", 1254 num_vfs_param, iov->nr_virtfn); 1255 1256 /* allocate the vf array */ 1257 bp->vfdb->vfs = kcalloc(BNX2X_NR_VIRTFN(bp), 1258 sizeof(struct bnx2x_virtf), 1259 GFP_KERNEL); 1260 if (!bp->vfdb->vfs) { 1261 BNX2X_ERR("failed to allocate vf array\n"); 1262 err = -ENOMEM; 1263 goto failed; 1264 } 1265 1266 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */ 1267 for_each_vf(bp, i) { 1268 bnx2x_vf(bp, i, index) = i; 1269 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i; 1270 bnx2x_vf(bp, i, state) = VF_FREE; 1271 mutex_init(&bnx2x_vf(bp, i, op_mutex)); 1272 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE; 1273 /* enable spoofchk by default */ 1274 bnx2x_vf(bp, i, spoofchk) = 1; 1275 } 1276 1277 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */ 1278 if (!bnx2x_get_vf_igu_cam_info(bp)) { 1279 BNX2X_ERR("No entries in IGU CAM for vfs\n"); 1280 err = -EINVAL; 1281 goto failed; 1282 } 1283 1284 /* allocate the queue arrays for all VFs */ 1285 bp->vfdb->vfqs = kcalloc(BNX2X_MAX_NUM_VF_QUEUES, 1286 sizeof(struct bnx2x_vf_queue), 1287 GFP_KERNEL); 1288 1289 if (!bp->vfdb->vfqs) { 1290 BNX2X_ERR("failed to allocate vf queue array\n"); 1291 err = -ENOMEM; 1292 goto failed; 1293 } 1294 1295 /* Prepare the VFs event synchronization mechanism */ 1296 mutex_init(&bp->vfdb->event_mutex); 1297 1298 mutex_init(&bp->vfdb->bulletin_mutex); 1299 1300 if (SHMEM2_HAS(bp, sriov_switch_mode)) 1301 SHMEM2_WR(bp, sriov_switch_mode, SRIOV_SWITCH_MODE_VEB); 1302 1303 return 0; 1304 failed: 1305 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err); 1306 __bnx2x_iov_free_vfdb(bp); 1307 return err; 1308 } 1309 1310 void bnx2x_iov_remove_one(struct bnx2x *bp) 1311 { 1312 int vf_idx; 1313 1314 /* if SRIOV is not enabled there's nothing to do */ 1315 if (!IS_SRIOV(bp)) 1316 return; 1317 1318 bnx2x_disable_sriov(bp); 1319 1320 /* disable access to all VFs */ 1321 for (vf_idx = 0; vf_idx < bp->vfdb->sriov.total; vf_idx++) { 1322 bnx2x_pretend_func(bp, 1323 HW_VF_HANDLE(bp, 1324 bp->vfdb->sriov.first_vf_in_pf + 1325 vf_idx)); 1326 DP(BNX2X_MSG_IOV, "disabling internal access for vf %d\n", 1327 bp->vfdb->sriov.first_vf_in_pf + vf_idx); 1328 bnx2x_vf_enable_internal(bp, 0); 1329 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1330 } 1331 1332 /* free vf database */ 1333 __bnx2x_iov_free_vfdb(bp); 1334 } 1335 1336 void bnx2x_iov_free_mem(struct bnx2x *bp) 1337 { 1338 int i; 1339 1340 if (!IS_SRIOV(bp)) 1341 return; 1342 1343 /* free vfs hw contexts */ 1344 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 1345 struct hw_dma *cxt = &bp->vfdb->context[i]; 1346 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size); 1347 } 1348 1349 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr, 1350 BP_VFDB(bp)->sp_dma.mapping, 1351 BP_VFDB(bp)->sp_dma.size); 1352 1353 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr, 1354 BP_VF_MBX_DMA(bp)->mapping, 1355 BP_VF_MBX_DMA(bp)->size); 1356 1357 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr, 1358 BP_VF_BULLETIN_DMA(bp)->mapping, 1359 BP_VF_BULLETIN_DMA(bp)->size); 1360 } 1361 1362 int bnx2x_iov_alloc_mem(struct bnx2x *bp) 1363 { 1364 size_t tot_size; 1365 int i, rc = 0; 1366 1367 if (!IS_SRIOV(bp)) 1368 return rc; 1369 1370 /* allocate vfs hw contexts */ 1371 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) * 1372 BNX2X_CIDS_PER_VF * sizeof(union cdu_context); 1373 1374 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 1375 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i); 1376 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ); 1377 1378 if (cxt->size) { 1379 cxt->addr = BNX2X_PCI_ALLOC(&cxt->mapping, cxt->size); 1380 if (!cxt->addr) 1381 goto alloc_mem_err; 1382 } else { 1383 cxt->addr = NULL; 1384 cxt->mapping = 0; 1385 } 1386 tot_size -= cxt->size; 1387 } 1388 1389 /* allocate vfs ramrods dma memory - client_init and set_mac */ 1390 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp); 1391 BP_VFDB(bp)->sp_dma.addr = BNX2X_PCI_ALLOC(&BP_VFDB(bp)->sp_dma.mapping, 1392 tot_size); 1393 if (!BP_VFDB(bp)->sp_dma.addr) 1394 goto alloc_mem_err; 1395 BP_VFDB(bp)->sp_dma.size = tot_size; 1396 1397 /* allocate mailboxes */ 1398 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE; 1399 BP_VF_MBX_DMA(bp)->addr = BNX2X_PCI_ALLOC(&BP_VF_MBX_DMA(bp)->mapping, 1400 tot_size); 1401 if (!BP_VF_MBX_DMA(bp)->addr) 1402 goto alloc_mem_err; 1403 1404 BP_VF_MBX_DMA(bp)->size = tot_size; 1405 1406 /* allocate local bulletin boards */ 1407 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE; 1408 BP_VF_BULLETIN_DMA(bp)->addr = BNX2X_PCI_ALLOC(&BP_VF_BULLETIN_DMA(bp)->mapping, 1409 tot_size); 1410 if (!BP_VF_BULLETIN_DMA(bp)->addr) 1411 goto alloc_mem_err; 1412 1413 BP_VF_BULLETIN_DMA(bp)->size = tot_size; 1414 1415 return 0; 1416 1417 alloc_mem_err: 1418 return -ENOMEM; 1419 } 1420 1421 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf, 1422 struct bnx2x_vf_queue *q) 1423 { 1424 u8 cl_id = vfq_cl_id(vf, q); 1425 u8 func_id = FW_VF_HANDLE(vf->abs_vfid); 1426 unsigned long q_type = 0; 1427 1428 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type); 1429 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type); 1430 1431 /* Queue State object */ 1432 bnx2x_init_queue_obj(bp, &q->sp_obj, 1433 cl_id, &q->cid, 1, func_id, 1434 bnx2x_vf_sp(bp, vf, q_data), 1435 bnx2x_vf_sp_map(bp, vf, q_data), 1436 q_type); 1437 1438 /* sp indication is set only when vlan/mac/etc. are initialized */ 1439 q->sp_initialized = false; 1440 1441 DP(BNX2X_MSG_IOV, 1442 "initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n", 1443 vf->abs_vfid, q->sp_obj.func_id, q->cid); 1444 } 1445 1446 static int bnx2x_max_speed_cap(struct bnx2x *bp) 1447 { 1448 u32 supported = bp->port.supported[bnx2x_get_link_cfg_idx(bp)]; 1449 1450 if (supported & 1451 (SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full)) 1452 return 20000; 1453 1454 return 10000; /* assume lowest supported speed is 10G */ 1455 } 1456 1457 int bnx2x_iov_link_update_vf(struct bnx2x *bp, int idx) 1458 { 1459 struct bnx2x_link_report_data *state = &bp->last_reported_link; 1460 struct pf_vf_bulletin_content *bulletin; 1461 struct bnx2x_virtf *vf; 1462 bool update = true; 1463 int rc = 0; 1464 1465 /* sanity and init */ 1466 rc = bnx2x_vf_op_prep(bp, idx, &vf, &bulletin, false); 1467 if (rc) 1468 return rc; 1469 1470 mutex_lock(&bp->vfdb->bulletin_mutex); 1471 1472 if (vf->link_cfg == IFLA_VF_LINK_STATE_AUTO) { 1473 bulletin->valid_bitmap |= 1 << LINK_VALID; 1474 1475 bulletin->link_speed = state->line_speed; 1476 bulletin->link_flags = 0; 1477 if (test_bit(BNX2X_LINK_REPORT_LINK_DOWN, 1478 &state->link_report_flags)) 1479 bulletin->link_flags |= VFPF_LINK_REPORT_LINK_DOWN; 1480 if (test_bit(BNX2X_LINK_REPORT_FD, 1481 &state->link_report_flags)) 1482 bulletin->link_flags |= VFPF_LINK_REPORT_FULL_DUPLEX; 1483 if (test_bit(BNX2X_LINK_REPORT_RX_FC_ON, 1484 &state->link_report_flags)) 1485 bulletin->link_flags |= VFPF_LINK_REPORT_RX_FC_ON; 1486 if (test_bit(BNX2X_LINK_REPORT_TX_FC_ON, 1487 &state->link_report_flags)) 1488 bulletin->link_flags |= VFPF_LINK_REPORT_TX_FC_ON; 1489 } else if (vf->link_cfg == IFLA_VF_LINK_STATE_DISABLE && 1490 !(bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)) { 1491 bulletin->valid_bitmap |= 1 << LINK_VALID; 1492 bulletin->link_flags |= VFPF_LINK_REPORT_LINK_DOWN; 1493 } else if (vf->link_cfg == IFLA_VF_LINK_STATE_ENABLE && 1494 (bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN)) { 1495 bulletin->valid_bitmap |= 1 << LINK_VALID; 1496 bulletin->link_speed = bnx2x_max_speed_cap(bp); 1497 bulletin->link_flags &= ~VFPF_LINK_REPORT_LINK_DOWN; 1498 } else { 1499 update = false; 1500 } 1501 1502 if (update) { 1503 DP(NETIF_MSG_LINK | BNX2X_MSG_IOV, 1504 "vf %d mode %u speed %d flags %x\n", idx, 1505 vf->link_cfg, bulletin->link_speed, bulletin->link_flags); 1506 1507 /* Post update on VF's bulletin board */ 1508 rc = bnx2x_post_vf_bulletin(bp, idx); 1509 if (rc) { 1510 BNX2X_ERR("failed to update VF[%d] bulletin\n", idx); 1511 goto out; 1512 } 1513 } 1514 1515 out: 1516 mutex_unlock(&bp->vfdb->bulletin_mutex); 1517 return rc; 1518 } 1519 1520 int bnx2x_set_vf_link_state(struct net_device *dev, int idx, int link_state) 1521 { 1522 struct bnx2x *bp = netdev_priv(dev); 1523 struct bnx2x_virtf *vf = BP_VF(bp, idx); 1524 1525 if (!vf) 1526 return -EINVAL; 1527 1528 if (vf->link_cfg == link_state) 1529 return 0; /* nothing todo */ 1530 1531 vf->link_cfg = link_state; 1532 1533 return bnx2x_iov_link_update_vf(bp, idx); 1534 } 1535 1536 void bnx2x_iov_link_update(struct bnx2x *bp) 1537 { 1538 int vfid; 1539 1540 if (!IS_SRIOV(bp)) 1541 return; 1542 1543 for_each_vf(bp, vfid) 1544 bnx2x_iov_link_update_vf(bp, vfid); 1545 } 1546 1547 /* called by bnx2x_nic_load */ 1548 int bnx2x_iov_nic_init(struct bnx2x *bp) 1549 { 1550 int vfid; 1551 1552 if (!IS_SRIOV(bp)) { 1553 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n"); 1554 return 0; 1555 } 1556 1557 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn); 1558 1559 /* let FLR complete ... */ 1560 msleep(100); 1561 1562 /* initialize vf database */ 1563 for_each_vf(bp, vfid) { 1564 struct bnx2x_virtf *vf = BP_VF(bp, vfid); 1565 1566 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) * 1567 BNX2X_CIDS_PER_VF; 1568 1569 union cdu_context *base_cxt = (union cdu_context *) 1570 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr + 1571 (base_vf_cid & (ILT_PAGE_CIDS-1)); 1572 1573 DP(BNX2X_MSG_IOV, 1574 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n", 1575 vf->abs_vfid, vf_sb_count(vf), base_vf_cid, 1576 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt); 1577 1578 /* init statically provisioned resources */ 1579 bnx2x_iov_static_resc(bp, vf); 1580 1581 /* queues are initialized during VF-ACQUIRE */ 1582 vf->filter_state = 0; 1583 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id); 1584 1585 bnx2x_init_credit_pool(&vf->vf_vlans_pool, 0, 1586 vf_vlan_rules_cnt(vf)); 1587 bnx2x_init_credit_pool(&vf->vf_macs_pool, 0, 1588 vf_mac_rules_cnt(vf)); 1589 1590 /* init mcast object - This object will be re-initialized 1591 * during VF-ACQUIRE with the proper cl_id and cid. 1592 * It needs to be initialized here so that it can be safely 1593 * handled by a subsequent FLR flow. 1594 */ 1595 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF, 1596 0xFF, 0xFF, 0xFF, 1597 bnx2x_vf_sp(bp, vf, mcast_rdata), 1598 bnx2x_vf_sp_map(bp, vf, mcast_rdata), 1599 BNX2X_FILTER_MCAST_PENDING, 1600 &vf->filter_state, 1601 BNX2X_OBJ_TYPE_RX_TX); 1602 1603 /* set the mailbox message addresses */ 1604 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *) 1605 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid * 1606 MBX_MSG_ALIGNED_SIZE); 1607 1608 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping + 1609 vfid * MBX_MSG_ALIGNED_SIZE; 1610 1611 /* Enable vf mailbox */ 1612 bnx2x_vf_enable_mbx(bp, vf->abs_vfid); 1613 } 1614 1615 /* Final VF init */ 1616 for_each_vf(bp, vfid) { 1617 struct bnx2x_virtf *vf = BP_VF(bp, vfid); 1618 1619 /* fill in the BDF and bars */ 1620 vf->domain = bnx2x_vf_domain(bp, vfid); 1621 vf->bus = bnx2x_vf_bus(bp, vfid); 1622 vf->devfn = bnx2x_vf_devfn(bp, vfid); 1623 bnx2x_vf_set_bars(bp, vf); 1624 1625 DP(BNX2X_MSG_IOV, 1626 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n", 1627 vf->abs_vfid, vf->bus, vf->devfn, 1628 (unsigned)vf->bars[0].bar, vf->bars[0].size, 1629 (unsigned)vf->bars[1].bar, vf->bars[1].size, 1630 (unsigned)vf->bars[2].bar, vf->bars[2].size); 1631 } 1632 1633 return 0; 1634 } 1635 1636 /* called by bnx2x_chip_cleanup */ 1637 int bnx2x_iov_chip_cleanup(struct bnx2x *bp) 1638 { 1639 int i; 1640 1641 if (!IS_SRIOV(bp)) 1642 return 0; 1643 1644 /* release all the VFs */ 1645 for_each_vf(bp, i) 1646 bnx2x_vf_release(bp, BP_VF(bp, i)); 1647 1648 return 0; 1649 } 1650 1651 /* called by bnx2x_init_hw_func, returns the next ilt line */ 1652 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line) 1653 { 1654 int i; 1655 struct bnx2x_ilt *ilt = BP_ILT(bp); 1656 1657 if (!IS_SRIOV(bp)) 1658 return line; 1659 1660 /* set vfs ilt lines */ 1661 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 1662 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i); 1663 1664 ilt->lines[line+i].page = hw_cxt->addr; 1665 ilt->lines[line+i].page_mapping = hw_cxt->mapping; 1666 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */ 1667 } 1668 return line + i; 1669 } 1670 1671 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid) 1672 { 1673 return ((cid >= BNX2X_FIRST_VF_CID) && 1674 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS)); 1675 } 1676 1677 static 1678 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp, 1679 struct bnx2x_vf_queue *vfq, 1680 union event_ring_elem *elem) 1681 { 1682 unsigned long ramrod_flags = 0; 1683 int rc = 0; 1684 u32 echo = le32_to_cpu(elem->message.data.eth_event.echo); 1685 1686 /* Always push next commands out, don't wait here */ 1687 set_bit(RAMROD_CONT, &ramrod_flags); 1688 1689 switch (echo >> BNX2X_SWCID_SHIFT) { 1690 case BNX2X_FILTER_MAC_PENDING: 1691 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem, 1692 &ramrod_flags); 1693 break; 1694 case BNX2X_FILTER_VLAN_PENDING: 1695 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem, 1696 &ramrod_flags); 1697 break; 1698 default: 1699 BNX2X_ERR("Unsupported classification command: 0x%x\n", echo); 1700 return; 1701 } 1702 if (rc < 0) 1703 BNX2X_ERR("Failed to schedule new commands: %d\n", rc); 1704 else if (rc > 0) 1705 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n"); 1706 } 1707 1708 static 1709 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp, 1710 struct bnx2x_virtf *vf) 1711 { 1712 struct bnx2x_mcast_ramrod_params rparam = {NULL}; 1713 int rc; 1714 1715 rparam.mcast_obj = &vf->mcast_obj; 1716 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw); 1717 1718 /* If there are pending mcast commands - send them */ 1719 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) { 1720 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); 1721 if (rc < 0) 1722 BNX2X_ERR("Failed to send pending mcast commands: %d\n", 1723 rc); 1724 } 1725 } 1726 1727 static 1728 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp, 1729 struct bnx2x_virtf *vf) 1730 { 1731 smp_mb__before_atomic(); 1732 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state); 1733 smp_mb__after_atomic(); 1734 } 1735 1736 static void bnx2x_vf_handle_rss_update_eqe(struct bnx2x *bp, 1737 struct bnx2x_virtf *vf) 1738 { 1739 vf->rss_conf_obj.raw.clear_pending(&vf->rss_conf_obj.raw); 1740 } 1741 1742 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem) 1743 { 1744 struct bnx2x_virtf *vf; 1745 int qidx = 0, abs_vfid; 1746 u8 opcode; 1747 u16 cid = 0xffff; 1748 1749 if (!IS_SRIOV(bp)) 1750 return 1; 1751 1752 /* first get the cid - the only events we handle here are cfc-delete 1753 * and set-mac completion 1754 */ 1755 opcode = elem->message.opcode; 1756 1757 switch (opcode) { 1758 case EVENT_RING_OPCODE_CFC_DEL: 1759 cid = SW_CID(elem->message.data.cfc_del_event.cid); 1760 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid); 1761 break; 1762 case EVENT_RING_OPCODE_CLASSIFICATION_RULES: 1763 case EVENT_RING_OPCODE_MULTICAST_RULES: 1764 case EVENT_RING_OPCODE_FILTERS_RULES: 1765 case EVENT_RING_OPCODE_RSS_UPDATE_RULES: 1766 cid = SW_CID(elem->message.data.eth_event.echo); 1767 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid); 1768 break; 1769 case EVENT_RING_OPCODE_VF_FLR: 1770 abs_vfid = elem->message.data.vf_flr_event.vf_id; 1771 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n", 1772 abs_vfid); 1773 goto get_vf; 1774 case EVENT_RING_OPCODE_MALICIOUS_VF: 1775 abs_vfid = elem->message.data.malicious_vf_event.vf_id; 1776 BNX2X_ERR("Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n", 1777 abs_vfid, 1778 elem->message.data.malicious_vf_event.err_id); 1779 goto get_vf; 1780 default: 1781 return 1; 1782 } 1783 1784 /* check if the cid is the VF range */ 1785 if (!bnx2x_iov_is_vf_cid(bp, cid)) { 1786 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid); 1787 return 1; 1788 } 1789 1790 /* extract vf and rxq index from vf_cid - relies on the following: 1791 * 1. vfid on cid reflects the true abs_vfid 1792 * 2. The max number of VFs (per path) is 64 1793 */ 1794 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1); 1795 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1); 1796 get_vf: 1797 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 1798 1799 if (!vf) { 1800 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n", 1801 cid, abs_vfid); 1802 return 0; 1803 } 1804 1805 switch (opcode) { 1806 case EVENT_RING_OPCODE_CFC_DEL: 1807 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n", 1808 vf->abs_vfid, qidx); 1809 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp, 1810 &vfq_get(vf, 1811 qidx)->sp_obj, 1812 BNX2X_Q_CMD_CFC_DEL); 1813 break; 1814 case EVENT_RING_OPCODE_CLASSIFICATION_RULES: 1815 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n", 1816 vf->abs_vfid, qidx); 1817 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem); 1818 break; 1819 case EVENT_RING_OPCODE_MULTICAST_RULES: 1820 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n", 1821 vf->abs_vfid, qidx); 1822 bnx2x_vf_handle_mcast_eqe(bp, vf); 1823 break; 1824 case EVENT_RING_OPCODE_FILTERS_RULES: 1825 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n", 1826 vf->abs_vfid, qidx); 1827 bnx2x_vf_handle_filters_eqe(bp, vf); 1828 break; 1829 case EVENT_RING_OPCODE_RSS_UPDATE_RULES: 1830 DP(BNX2X_MSG_IOV, "got VF [%d:%d] RSS update ramrod\n", 1831 vf->abs_vfid, qidx); 1832 bnx2x_vf_handle_rss_update_eqe(bp, vf); 1833 /* fall through */ 1834 case EVENT_RING_OPCODE_VF_FLR: 1835 /* Do nothing for now */ 1836 return 0; 1837 case EVENT_RING_OPCODE_MALICIOUS_VF: 1838 vf->malicious = true; 1839 return 0; 1840 } 1841 1842 return 0; 1843 } 1844 1845 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid) 1846 { 1847 /* extract the vf from vf_cid - relies on the following: 1848 * 1. vfid on cid reflects the true abs_vfid 1849 * 2. The max number of VFs (per path) is 64 1850 */ 1851 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1); 1852 return bnx2x_vf_by_abs_fid(bp, abs_vfid); 1853 } 1854 1855 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid, 1856 struct bnx2x_queue_sp_obj **q_obj) 1857 { 1858 struct bnx2x_virtf *vf; 1859 1860 if (!IS_SRIOV(bp)) 1861 return; 1862 1863 vf = bnx2x_vf_by_cid(bp, vf_cid); 1864 1865 if (vf) { 1866 /* extract queue index from vf_cid - relies on the following: 1867 * 1. vfid on cid reflects the true abs_vfid 1868 * 2. The max number of VFs (per path) is 64 1869 */ 1870 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1); 1871 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj); 1872 } else { 1873 BNX2X_ERR("No vf matching cid %d\n", vf_cid); 1874 } 1875 } 1876 1877 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp) 1878 { 1879 int i; 1880 int first_queue_query_index, num_queues_req; 1881 dma_addr_t cur_data_offset; 1882 struct stats_query_entry *cur_query_entry; 1883 u8 stats_count = 0; 1884 bool is_fcoe = false; 1885 1886 if (!IS_SRIOV(bp)) 1887 return; 1888 1889 if (!NO_FCOE(bp)) 1890 is_fcoe = true; 1891 1892 /* fcoe adds one global request and one queue request */ 1893 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe; 1894 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX - 1895 (is_fcoe ? 0 : 1); 1896 1897 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), 1898 "BNX2X_NUM_ETH_QUEUES %d, is_fcoe %d, first_queue_query_index %d => determined the last non virtual statistics query index is %d. Will add queries on top of that\n", 1899 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index, 1900 first_queue_query_index + num_queues_req); 1901 1902 cur_data_offset = bp->fw_stats_data_mapping + 1903 offsetof(struct bnx2x_fw_stats_data, queue_stats) + 1904 num_queues_req * sizeof(struct per_queue_stats); 1905 1906 cur_query_entry = &bp->fw_stats_req-> 1907 query[first_queue_query_index + num_queues_req]; 1908 1909 for_each_vf(bp, i) { 1910 int j; 1911 struct bnx2x_virtf *vf = BP_VF(bp, i); 1912 1913 if (vf->state != VF_ENABLED) { 1914 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), 1915 "vf %d not enabled so no stats for it\n", 1916 vf->abs_vfid); 1917 continue; 1918 } 1919 1920 if (vf->malicious) { 1921 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), 1922 "vf %d malicious so no stats for it\n", 1923 vf->abs_vfid); 1924 continue; 1925 } 1926 1927 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), 1928 "add addresses for vf %d\n", vf->abs_vfid); 1929 for_each_vfq(vf, j) { 1930 struct bnx2x_vf_queue *rxq = vfq_get(vf, j); 1931 1932 dma_addr_t q_stats_addr = 1933 vf->fw_stat_map + j * vf->stats_stride; 1934 1935 /* collect stats fro active queues only */ 1936 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) == 1937 BNX2X_Q_LOGICAL_STATE_STOPPED) 1938 continue; 1939 1940 /* create stats query entry for this queue */ 1941 cur_query_entry->kind = STATS_TYPE_QUEUE; 1942 cur_query_entry->index = vfq_stat_id(vf, rxq); 1943 cur_query_entry->funcID = 1944 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid)); 1945 cur_query_entry->address.hi = 1946 cpu_to_le32(U64_HI(q_stats_addr)); 1947 cur_query_entry->address.lo = 1948 cpu_to_le32(U64_LO(q_stats_addr)); 1949 DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), 1950 "added address %x %x for vf %d queue %d client %d\n", 1951 cur_query_entry->address.hi, 1952 cur_query_entry->address.lo, 1953 cur_query_entry->funcID, 1954 j, cur_query_entry->index); 1955 cur_query_entry++; 1956 cur_data_offset += sizeof(struct per_queue_stats); 1957 stats_count++; 1958 1959 /* all stats are coalesced to the leading queue */ 1960 if (vf->cfg_flags & VF_CFG_STATS_COALESCE) 1961 break; 1962 } 1963 } 1964 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count; 1965 } 1966 1967 /* VF API helpers */ 1968 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid, 1969 u8 enable) 1970 { 1971 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4; 1972 u32 val = enable ? (abs_vfid | (1 << 6)) : 0; 1973 1974 REG_WR(bp, reg, val); 1975 } 1976 1977 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf) 1978 { 1979 int i; 1980 1981 for_each_vfq(vf, i) 1982 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid, 1983 vfq_qzone_id(vf, vfq_get(vf, i)), false); 1984 } 1985 1986 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf) 1987 { 1988 u32 val; 1989 1990 /* clear the VF configuration - pretend */ 1991 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1992 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION); 1993 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN | 1994 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK); 1995 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); 1996 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1997 } 1998 1999 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf) 2000 { 2001 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF), 2002 BNX2X_VF_MAX_QUEUES); 2003 } 2004 2005 static 2006 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf, 2007 struct vf_pf_resc_request *req_resc) 2008 { 2009 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf); 2010 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf); 2011 2012 return ((req_resc->num_rxqs <= rxq_cnt) && 2013 (req_resc->num_txqs <= txq_cnt) && 2014 (req_resc->num_sbs <= vf_sb_count(vf)) && 2015 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) && 2016 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf))); 2017 } 2018 2019 /* CORE VF API */ 2020 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf, 2021 struct vf_pf_resc_request *resc) 2022 { 2023 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) * 2024 BNX2X_CIDS_PER_VF; 2025 2026 union cdu_context *base_cxt = (union cdu_context *) 2027 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr + 2028 (base_vf_cid & (ILT_PAGE_CIDS-1)); 2029 int i; 2030 2031 /* if state is 'acquired' the VF was not released or FLR'd, in 2032 * this case the returned resources match the acquired already 2033 * acquired resources. Verify that the requested numbers do 2034 * not exceed the already acquired numbers. 2035 */ 2036 if (vf->state == VF_ACQUIRED) { 2037 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n", 2038 vf->abs_vfid); 2039 2040 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) { 2041 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n", 2042 vf->abs_vfid); 2043 return -EINVAL; 2044 } 2045 return 0; 2046 } 2047 2048 /* Otherwise vf state must be 'free' or 'reset' */ 2049 if (vf->state != VF_FREE && vf->state != VF_RESET) { 2050 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n", 2051 vf->abs_vfid, vf->state); 2052 return -EINVAL; 2053 } 2054 2055 /* static allocation: 2056 * the global maximum number are fixed per VF. Fail the request if 2057 * requested number exceed these globals 2058 */ 2059 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) { 2060 DP(BNX2X_MSG_IOV, 2061 "cannot fulfill vf resource request. Placing maximal available values in response\n"); 2062 /* set the max resource in the vf */ 2063 return -ENOMEM; 2064 } 2065 2066 /* Set resources counters - 0 request means max available */ 2067 vf_sb_count(vf) = resc->num_sbs; 2068 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf); 2069 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf); 2070 2071 DP(BNX2X_MSG_IOV, 2072 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n", 2073 vf_sb_count(vf), vf_rxq_count(vf), 2074 vf_txq_count(vf), vf_mac_rules_cnt(vf), 2075 vf_vlan_rules_cnt(vf)); 2076 2077 /* Initialize the queues */ 2078 if (!vf->vfqs) { 2079 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n"); 2080 return -EINVAL; 2081 } 2082 2083 for_each_vfq(vf, i) { 2084 struct bnx2x_vf_queue *q = vfq_get(vf, i); 2085 2086 if (!q) { 2087 BNX2X_ERR("q number %d was not allocated\n", i); 2088 return -EINVAL; 2089 } 2090 2091 q->index = i; 2092 q->cxt = &((base_cxt + i)->eth); 2093 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i; 2094 2095 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n", 2096 vf->abs_vfid, i, q->index, q->cid, q->cxt); 2097 2098 /* init SP objects */ 2099 bnx2x_vfq_init(bp, vf, q); 2100 } 2101 vf->state = VF_ACQUIRED; 2102 return 0; 2103 } 2104 2105 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map) 2106 { 2107 struct bnx2x_func_init_params func_init = {0}; 2108 int i; 2109 2110 /* the sb resources are initialized at this point, do the 2111 * FW/HW initializations 2112 */ 2113 for_each_vf_sb(vf, i) 2114 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true, 2115 vf_igu_sb(vf, i), vf_igu_sb(vf, i)); 2116 2117 /* Sanity checks */ 2118 if (vf->state != VF_ACQUIRED) { 2119 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n", 2120 vf->abs_vfid, vf->state); 2121 return -EINVAL; 2122 } 2123 2124 /* let FLR complete ... */ 2125 msleep(100); 2126 2127 /* FLR cleanup epilogue */ 2128 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid)) 2129 return -EBUSY; 2130 2131 /* reset IGU VF statistics: MSIX */ 2132 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0); 2133 2134 /* function setup */ 2135 func_init.pf_id = BP_FUNC(bp); 2136 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid); 2137 bnx2x_func_init(bp, &func_init); 2138 2139 /* Enable the vf */ 2140 bnx2x_vf_enable_access(bp, vf->abs_vfid); 2141 bnx2x_vf_enable_traffic(bp, vf); 2142 2143 /* queue protection table */ 2144 for_each_vfq(vf, i) 2145 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid, 2146 vfq_qzone_id(vf, vfq_get(vf, i)), true); 2147 2148 vf->state = VF_ENABLED; 2149 2150 /* update vf bulletin board */ 2151 bnx2x_post_vf_bulletin(bp, vf->index); 2152 2153 return 0; 2154 } 2155 2156 struct set_vf_state_cookie { 2157 struct bnx2x_virtf *vf; 2158 u8 state; 2159 }; 2160 2161 static void bnx2x_set_vf_state(void *cookie) 2162 { 2163 struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie; 2164 2165 p->vf->state = p->state; 2166 } 2167 2168 int bnx2x_vf_close(struct bnx2x *bp, struct bnx2x_virtf *vf) 2169 { 2170 int rc = 0, i; 2171 2172 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 2173 2174 /* Close all queues */ 2175 for (i = 0; i < vf_rxq_count(vf); i++) { 2176 rc = bnx2x_vf_queue_teardown(bp, vf, i); 2177 if (rc) 2178 goto op_err; 2179 } 2180 2181 /* disable the interrupts */ 2182 DP(BNX2X_MSG_IOV, "disabling igu\n"); 2183 bnx2x_vf_igu_disable(bp, vf); 2184 2185 /* disable the VF */ 2186 DP(BNX2X_MSG_IOV, "clearing qtbl\n"); 2187 bnx2x_vf_clr_qtbl(bp, vf); 2188 2189 /* need to make sure there are no outstanding stats ramrods which may 2190 * cause the device to access the VF's stats buffer which it will free 2191 * as soon as we return from the close flow. 2192 */ 2193 { 2194 struct set_vf_state_cookie cookie; 2195 2196 cookie.vf = vf; 2197 cookie.state = VF_ACQUIRED; 2198 rc = bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie); 2199 if (rc) 2200 goto op_err; 2201 } 2202 2203 DP(BNX2X_MSG_IOV, "set state to acquired\n"); 2204 2205 return 0; 2206 op_err: 2207 BNX2X_ERR("vf[%d] CLOSE error: rc %d\n", vf->abs_vfid, rc); 2208 return rc; 2209 } 2210 2211 /* VF release can be called either: 1. The VF was acquired but 2212 * not enabled 2. the vf was enabled or in the process of being 2213 * enabled 2214 */ 2215 int bnx2x_vf_free(struct bnx2x *bp, struct bnx2x_virtf *vf) 2216 { 2217 int rc; 2218 2219 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid, 2220 vf->state == VF_FREE ? "Free" : 2221 vf->state == VF_ACQUIRED ? "Acquired" : 2222 vf->state == VF_ENABLED ? "Enabled" : 2223 vf->state == VF_RESET ? "Reset" : 2224 "Unknown"); 2225 2226 switch (vf->state) { 2227 case VF_ENABLED: 2228 rc = bnx2x_vf_close(bp, vf); 2229 if (rc) 2230 goto op_err; 2231 /* Fall through - to release resources */ 2232 case VF_ACQUIRED: 2233 DP(BNX2X_MSG_IOV, "about to free resources\n"); 2234 bnx2x_vf_free_resc(bp, vf); 2235 break; 2236 2237 case VF_FREE: 2238 case VF_RESET: 2239 default: 2240 break; 2241 } 2242 return 0; 2243 op_err: 2244 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, rc); 2245 return rc; 2246 } 2247 2248 int bnx2x_vf_rss_update(struct bnx2x *bp, struct bnx2x_virtf *vf, 2249 struct bnx2x_config_rss_params *rss) 2250 { 2251 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 2252 set_bit(RAMROD_COMP_WAIT, &rss->ramrod_flags); 2253 return bnx2x_config_rss(bp, rss); 2254 } 2255 2256 int bnx2x_vf_tpa_update(struct bnx2x *bp, struct bnx2x_virtf *vf, 2257 struct vfpf_tpa_tlv *tlv, 2258 struct bnx2x_queue_update_tpa_params *params) 2259 { 2260 aligned_u64 *sge_addr = tlv->tpa_client_info.sge_addr; 2261 struct bnx2x_queue_state_params qstate; 2262 int qid, rc = 0; 2263 2264 DP(BNX2X_MSG_IOV, "vf[%d]\n", vf->abs_vfid); 2265 2266 /* Set ramrod params */ 2267 memset(&qstate, 0, sizeof(struct bnx2x_queue_state_params)); 2268 memcpy(&qstate.params.update_tpa, params, 2269 sizeof(struct bnx2x_queue_update_tpa_params)); 2270 qstate.cmd = BNX2X_Q_CMD_UPDATE_TPA; 2271 set_bit(RAMROD_COMP_WAIT, &qstate.ramrod_flags); 2272 2273 for (qid = 0; qid < vf_rxq_count(vf); qid++) { 2274 qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj); 2275 qstate.params.update_tpa.sge_map = sge_addr[qid]; 2276 DP(BNX2X_MSG_IOV, "sge_addr[%d:%d] %08x:%08x\n", 2277 vf->abs_vfid, qid, U64_HI(sge_addr[qid]), 2278 U64_LO(sge_addr[qid])); 2279 rc = bnx2x_queue_state_change(bp, &qstate); 2280 if (rc) { 2281 BNX2X_ERR("Failed to configure sge_addr %08x:%08x for [%d:%d]\n", 2282 U64_HI(sge_addr[qid]), U64_LO(sge_addr[qid]), 2283 vf->abs_vfid, qid); 2284 return rc; 2285 } 2286 } 2287 2288 return rc; 2289 } 2290 2291 /* VF release ~ VF close + VF release-resources 2292 * Release is the ultimate SW shutdown and is called whenever an 2293 * irrecoverable error is encountered. 2294 */ 2295 int bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf) 2296 { 2297 int rc; 2298 2299 DP(BNX2X_MSG_IOV, "PF releasing vf %d\n", vf->abs_vfid); 2300 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF); 2301 2302 rc = bnx2x_vf_free(bp, vf); 2303 if (rc) 2304 WARN(rc, 2305 "VF[%d] Failed to allocate resources for release op- rc=%d\n", 2306 vf->abs_vfid, rc); 2307 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF); 2308 return rc; 2309 } 2310 2311 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf, 2312 enum channel_tlvs tlv) 2313 { 2314 /* we don't lock the channel for unsupported tlvs */ 2315 if (!bnx2x_tlv_supported(tlv)) { 2316 BNX2X_ERR("attempting to lock with unsupported tlv. Aborting\n"); 2317 return; 2318 } 2319 2320 /* lock the channel */ 2321 mutex_lock(&vf->op_mutex); 2322 2323 /* record the locking op */ 2324 vf->op_current = tlv; 2325 2326 /* log the lock */ 2327 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n", 2328 vf->abs_vfid, tlv); 2329 } 2330 2331 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf, 2332 enum channel_tlvs expected_tlv) 2333 { 2334 enum channel_tlvs current_tlv; 2335 2336 if (!vf) { 2337 BNX2X_ERR("VF was %p\n", vf); 2338 return; 2339 } 2340 2341 current_tlv = vf->op_current; 2342 2343 /* we don't unlock the channel for unsupported tlvs */ 2344 if (!bnx2x_tlv_supported(expected_tlv)) 2345 return; 2346 2347 WARN(expected_tlv != vf->op_current, 2348 "lock mismatch: expected %d found %d", expected_tlv, 2349 vf->op_current); 2350 2351 /* record the locking op */ 2352 vf->op_current = CHANNEL_TLV_NONE; 2353 2354 /* lock the channel */ 2355 mutex_unlock(&vf->op_mutex); 2356 2357 /* log the unlock */ 2358 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n", 2359 vf->abs_vfid, current_tlv); 2360 } 2361 2362 static int bnx2x_set_pf_tx_switching(struct bnx2x *bp, bool enable) 2363 { 2364 struct bnx2x_queue_state_params q_params; 2365 u32 prev_flags; 2366 int i, rc; 2367 2368 /* Verify changes are needed and record current Tx switching state */ 2369 prev_flags = bp->flags; 2370 if (enable) 2371 bp->flags |= TX_SWITCHING; 2372 else 2373 bp->flags &= ~TX_SWITCHING; 2374 if (prev_flags == bp->flags) 2375 return 0; 2376 2377 /* Verify state enables the sending of queue ramrods */ 2378 if ((bp->state != BNX2X_STATE_OPEN) || 2379 (bnx2x_get_q_logical_state(bp, 2380 &bnx2x_sp_obj(bp, &bp->fp[0]).q_obj) != 2381 BNX2X_Q_LOGICAL_STATE_ACTIVE)) 2382 return 0; 2383 2384 /* send q. update ramrod to configure Tx switching */ 2385 memset(&q_params, 0, sizeof(q_params)); 2386 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags); 2387 q_params.cmd = BNX2X_Q_CMD_UPDATE; 2388 __set_bit(BNX2X_Q_UPDATE_TX_SWITCHING_CHNG, 2389 &q_params.params.update.update_flags); 2390 if (enable) 2391 __set_bit(BNX2X_Q_UPDATE_TX_SWITCHING, 2392 &q_params.params.update.update_flags); 2393 else 2394 __clear_bit(BNX2X_Q_UPDATE_TX_SWITCHING, 2395 &q_params.params.update.update_flags); 2396 2397 /* send the ramrod on all the queues of the PF */ 2398 for_each_eth_queue(bp, i) { 2399 struct bnx2x_fastpath *fp = &bp->fp[i]; 2400 int tx_idx; 2401 2402 /* Set the appropriate Queue object */ 2403 q_params.q_obj = &bnx2x_sp_obj(bp, fp).q_obj; 2404 2405 for (tx_idx = FIRST_TX_COS_INDEX; 2406 tx_idx < fp->max_cos; tx_idx++) { 2407 q_params.params.update.cid_index = tx_idx; 2408 2409 /* Update the Queue state */ 2410 rc = bnx2x_queue_state_change(bp, &q_params); 2411 if (rc) { 2412 BNX2X_ERR("Failed to configure Tx switching\n"); 2413 return rc; 2414 } 2415 } 2416 } 2417 2418 DP(BNX2X_MSG_IOV, "%s Tx Switching\n", enable ? "Enabled" : "Disabled"); 2419 return 0; 2420 } 2421 2422 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param) 2423 { 2424 struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev)); 2425 2426 if (!IS_SRIOV(bp)) { 2427 BNX2X_ERR("failed to configure SR-IOV since vfdb was not allocated. Check dmesg for errors in probe stage\n"); 2428 return -EINVAL; 2429 } 2430 2431 DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n", 2432 num_vfs_param, BNX2X_NR_VIRTFN(bp)); 2433 2434 /* HW channel is only operational when PF is up */ 2435 if (bp->state != BNX2X_STATE_OPEN) { 2436 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n"); 2437 return -EINVAL; 2438 } 2439 2440 /* we are always bound by the total_vfs in the configuration space */ 2441 if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) { 2442 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n", 2443 num_vfs_param, BNX2X_NR_VIRTFN(bp)); 2444 num_vfs_param = BNX2X_NR_VIRTFN(bp); 2445 } 2446 2447 bp->requested_nr_virtfn = num_vfs_param; 2448 if (num_vfs_param == 0) { 2449 bnx2x_set_pf_tx_switching(bp, false); 2450 bnx2x_disable_sriov(bp); 2451 return 0; 2452 } else { 2453 return bnx2x_enable_sriov(bp); 2454 } 2455 } 2456 2457 #define IGU_ENTRY_SIZE 4 2458 2459 int bnx2x_enable_sriov(struct bnx2x *bp) 2460 { 2461 int rc = 0, req_vfs = bp->requested_nr_virtfn; 2462 int vf_idx, sb_idx, vfq_idx, qcount, first_vf; 2463 u32 igu_entry, address; 2464 u16 num_vf_queues; 2465 2466 if (req_vfs == 0) 2467 return 0; 2468 2469 first_vf = bp->vfdb->sriov.first_vf_in_pf; 2470 2471 /* statically distribute vf sb pool between VFs */ 2472 num_vf_queues = min_t(u16, BNX2X_VF_MAX_QUEUES, 2473 BP_VFDB(bp)->vf_sbs_pool / req_vfs); 2474 2475 /* zero previous values learned from igu cam */ 2476 for (vf_idx = 0; vf_idx < req_vfs; vf_idx++) { 2477 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx); 2478 2479 vf->sb_count = 0; 2480 vf_sb_count(BP_VF(bp, vf_idx)) = 0; 2481 } 2482 bp->vfdb->vf_sbs_pool = 0; 2483 2484 /* prepare IGU cam */ 2485 sb_idx = BP_VFDB(bp)->first_vf_igu_entry; 2486 address = IGU_REG_MAPPING_MEMORY + sb_idx * IGU_ENTRY_SIZE; 2487 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) { 2488 for (vfq_idx = 0; vfq_idx < num_vf_queues; vfq_idx++) { 2489 igu_entry = vf_idx << IGU_REG_MAPPING_MEMORY_FID_SHIFT | 2490 vfq_idx << IGU_REG_MAPPING_MEMORY_VECTOR_SHIFT | 2491 IGU_REG_MAPPING_MEMORY_VALID; 2492 DP(BNX2X_MSG_IOV, "assigning sb %d to vf %d\n", 2493 sb_idx, vf_idx); 2494 REG_WR(bp, address, igu_entry); 2495 sb_idx++; 2496 address += IGU_ENTRY_SIZE; 2497 } 2498 } 2499 2500 /* Reinitialize vf database according to igu cam */ 2501 bnx2x_get_vf_igu_cam_info(bp); 2502 2503 DP(BNX2X_MSG_IOV, "vf_sbs_pool %d, num_vf_queues %d\n", 2504 BP_VFDB(bp)->vf_sbs_pool, num_vf_queues); 2505 2506 qcount = 0; 2507 for_each_vf(bp, vf_idx) { 2508 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx); 2509 2510 /* set local queue arrays */ 2511 vf->vfqs = &bp->vfdb->vfqs[qcount]; 2512 qcount += vf_sb_count(vf); 2513 bnx2x_iov_static_resc(bp, vf); 2514 } 2515 2516 /* prepare msix vectors in VF configuration space - the value in the 2517 * PCI configuration space should be the index of the last entry, 2518 * namely one less than the actual size of the table 2519 */ 2520 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) { 2521 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx)); 2522 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL, 2523 num_vf_queues - 1); 2524 DP(BNX2X_MSG_IOV, "set msix vec num in VF %d cfg space to %d\n", 2525 vf_idx, num_vf_queues - 1); 2526 } 2527 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 2528 2529 /* enable sriov. This will probe all the VFs, and consequentially cause 2530 * the "acquire" messages to appear on the VF PF channel. 2531 */ 2532 DP(BNX2X_MSG_IOV, "about to call enable sriov\n"); 2533 bnx2x_disable_sriov(bp); 2534 2535 rc = bnx2x_set_pf_tx_switching(bp, true); 2536 if (rc) 2537 return rc; 2538 2539 rc = pci_enable_sriov(bp->pdev, req_vfs); 2540 if (rc) { 2541 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc); 2542 return rc; 2543 } 2544 DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs); 2545 return req_vfs; 2546 } 2547 2548 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp) 2549 { 2550 int vfidx; 2551 struct pf_vf_bulletin_content *bulletin; 2552 2553 DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n"); 2554 for_each_vf(bp, vfidx) { 2555 bulletin = BP_VF_BULLETIN(bp, vfidx); 2556 if (bulletin->valid_bitmap & (1 << VLAN_VALID)) 2557 bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0, 2558 htons(ETH_P_8021Q)); 2559 } 2560 } 2561 2562 void bnx2x_disable_sriov(struct bnx2x *bp) 2563 { 2564 if (pci_vfs_assigned(bp->pdev)) { 2565 DP(BNX2X_MSG_IOV, 2566 "Unloading driver while VFs are assigned - VFs will not be deallocated\n"); 2567 return; 2568 } 2569 2570 pci_disable_sriov(bp->pdev); 2571 } 2572 2573 static int bnx2x_vf_op_prep(struct bnx2x *bp, int vfidx, 2574 struct bnx2x_virtf **vf, 2575 struct pf_vf_bulletin_content **bulletin, 2576 bool test_queue) 2577 { 2578 if (bp->state != BNX2X_STATE_OPEN) { 2579 BNX2X_ERR("PF is down - can't utilize iov-related functionality\n"); 2580 return -EINVAL; 2581 } 2582 2583 if (!IS_SRIOV(bp)) { 2584 BNX2X_ERR("sriov is disabled - can't utilize iov-related functionality\n"); 2585 return -EINVAL; 2586 } 2587 2588 if (vfidx >= BNX2X_NR_VIRTFN(bp)) { 2589 BNX2X_ERR("VF is uninitialized - can't utilize iov-related functionality. vfidx was %d BNX2X_NR_VIRTFN was %d\n", 2590 vfidx, BNX2X_NR_VIRTFN(bp)); 2591 return -EINVAL; 2592 } 2593 2594 /* init members */ 2595 *vf = BP_VF(bp, vfidx); 2596 *bulletin = BP_VF_BULLETIN(bp, vfidx); 2597 2598 if (!*vf) { 2599 BNX2X_ERR("Unable to get VF structure for vfidx %d\n", vfidx); 2600 return -EINVAL; 2601 } 2602 2603 if (test_queue && !(*vf)->vfqs) { 2604 BNX2X_ERR("vfqs struct is null. Was this invoked before dynamically enabling SR-IOV? vfidx was %d\n", 2605 vfidx); 2606 return -EINVAL; 2607 } 2608 2609 if (!*bulletin) { 2610 BNX2X_ERR("Bulletin Board struct is null for vfidx %d\n", 2611 vfidx); 2612 return -EINVAL; 2613 } 2614 2615 return 0; 2616 } 2617 2618 int bnx2x_get_vf_config(struct net_device *dev, int vfidx, 2619 struct ifla_vf_info *ivi) 2620 { 2621 struct bnx2x *bp = netdev_priv(dev); 2622 struct bnx2x_virtf *vf = NULL; 2623 struct pf_vf_bulletin_content *bulletin = NULL; 2624 struct bnx2x_vlan_mac_obj *mac_obj; 2625 struct bnx2x_vlan_mac_obj *vlan_obj; 2626 int rc; 2627 2628 /* sanity and init */ 2629 rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true); 2630 if (rc) 2631 return rc; 2632 2633 mac_obj = &bnx2x_leading_vfq(vf, mac_obj); 2634 vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj); 2635 if (!mac_obj || !vlan_obj) { 2636 BNX2X_ERR("VF partially initialized\n"); 2637 return -EINVAL; 2638 } 2639 2640 ivi->vf = vfidx; 2641 ivi->qos = 0; 2642 ivi->max_tx_rate = 10000; /* always 10G. TBA take from link struct */ 2643 ivi->min_tx_rate = 0; 2644 ivi->spoofchk = vf->spoofchk ? 1 : 0; 2645 ivi->linkstate = vf->link_cfg; 2646 if (vf->state == VF_ENABLED) { 2647 /* mac and vlan are in vlan_mac objects */ 2648 if (bnx2x_validate_vf_sp_objs(bp, vf, false)) { 2649 mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac, 2650 0, ETH_ALEN); 2651 vlan_obj->get_n_elements(bp, vlan_obj, 1, 2652 (u8 *)&ivi->vlan, 0, 2653 VLAN_HLEN); 2654 } 2655 } else { 2656 mutex_lock(&bp->vfdb->bulletin_mutex); 2657 /* mac */ 2658 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID)) 2659 /* mac configured by ndo so its in bulletin board */ 2660 memcpy(&ivi->mac, bulletin->mac, ETH_ALEN); 2661 else 2662 /* function has not been loaded yet. Show mac as 0s */ 2663 eth_zero_addr(ivi->mac); 2664 2665 /* vlan */ 2666 if (bulletin->valid_bitmap & (1 << VLAN_VALID)) 2667 /* vlan configured by ndo so its in bulletin board */ 2668 memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN); 2669 else 2670 /* function has not been loaded yet. Show vlans as 0s */ 2671 memset(&ivi->vlan, 0, VLAN_HLEN); 2672 2673 mutex_unlock(&bp->vfdb->bulletin_mutex); 2674 } 2675 2676 return 0; 2677 } 2678 2679 /* New mac for VF. Consider these cases: 2680 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and 2681 * supply at acquire. 2682 * 2. VF has already been acquired but has not yet initialized - store in local 2683 * bulletin board. mac will be posted on VF bulletin board after VF init. VF 2684 * will configure this mac when it is ready. 2685 * 3. VF has already initialized but has not yet setup a queue - post the new 2686 * mac on VF's bulletin board right now. VF will configure this mac when it 2687 * is ready. 2688 * 4. VF has already set a queue - delete any macs already configured for this 2689 * queue and manually config the new mac. 2690 * In any event, once this function has been called refuse any attempts by the 2691 * VF to configure any mac for itself except for this mac. In case of a race 2692 * where the VF fails to see the new post on its bulletin board before sending a 2693 * mac configuration request, the PF will simply fail the request and VF can try 2694 * again after consulting its bulletin board. 2695 */ 2696 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac) 2697 { 2698 struct bnx2x *bp = netdev_priv(dev); 2699 int rc, q_logical_state; 2700 struct bnx2x_virtf *vf = NULL; 2701 struct pf_vf_bulletin_content *bulletin = NULL; 2702 2703 if (!is_valid_ether_addr(mac)) { 2704 BNX2X_ERR("mac address invalid\n"); 2705 return -EINVAL; 2706 } 2707 2708 /* sanity and init */ 2709 rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true); 2710 if (rc) 2711 return rc; 2712 2713 mutex_lock(&bp->vfdb->bulletin_mutex); 2714 2715 /* update PF's copy of the VF's bulletin. Will no longer accept mac 2716 * configuration requests from vf unless match this mac 2717 */ 2718 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID; 2719 memcpy(bulletin->mac, mac, ETH_ALEN); 2720 2721 /* Post update on VF's bulletin board */ 2722 rc = bnx2x_post_vf_bulletin(bp, vfidx); 2723 2724 /* release lock before checking return code */ 2725 mutex_unlock(&bp->vfdb->bulletin_mutex); 2726 2727 if (rc) { 2728 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx); 2729 return rc; 2730 } 2731 2732 q_logical_state = 2733 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)); 2734 if (vf->state == VF_ENABLED && 2735 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) { 2736 /* configure the mac in device on this vf's queue */ 2737 unsigned long ramrod_flags = 0; 2738 struct bnx2x_vlan_mac_obj *mac_obj; 2739 2740 /* User should be able to see failure reason in system logs */ 2741 if (!bnx2x_validate_vf_sp_objs(bp, vf, true)) 2742 return -EINVAL; 2743 2744 /* must lock vfpf channel to protect against vf flows */ 2745 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); 2746 2747 /* remove existing eth macs */ 2748 mac_obj = &bnx2x_leading_vfq(vf, mac_obj); 2749 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true); 2750 if (rc) { 2751 BNX2X_ERR("failed to delete eth macs\n"); 2752 rc = -EINVAL; 2753 goto out; 2754 } 2755 2756 /* remove existing uc list macs */ 2757 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true); 2758 if (rc) { 2759 BNX2X_ERR("failed to delete uc_list macs\n"); 2760 rc = -EINVAL; 2761 goto out; 2762 } 2763 2764 /* configure the new mac to device */ 2765 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); 2766 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true, 2767 BNX2X_ETH_MAC, &ramrod_flags); 2768 2769 out: 2770 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); 2771 } 2772 2773 return rc; 2774 } 2775 2776 static void bnx2x_set_vf_vlan_acceptance(struct bnx2x *bp, 2777 struct bnx2x_virtf *vf, bool accept) 2778 { 2779 struct bnx2x_rx_mode_ramrod_params rx_ramrod; 2780 unsigned long accept_flags; 2781 2782 /* need to remove/add the VF's accept_any_vlan bit */ 2783 accept_flags = bnx2x_leading_vfq(vf, accept_flags); 2784 if (accept) 2785 set_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags); 2786 else 2787 clear_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags); 2788 2789 bnx2x_vf_prep_rx_mode(bp, LEADING_IDX, &rx_ramrod, vf, 2790 accept_flags); 2791 bnx2x_leading_vfq(vf, accept_flags) = accept_flags; 2792 bnx2x_config_rx_mode(bp, &rx_ramrod); 2793 } 2794 2795 static int bnx2x_set_vf_vlan_filter(struct bnx2x *bp, struct bnx2x_virtf *vf, 2796 u16 vlan, bool add) 2797 { 2798 struct bnx2x_vlan_mac_ramrod_params ramrod_param; 2799 unsigned long ramrod_flags = 0; 2800 int rc = 0; 2801 2802 /* configure the new vlan to device */ 2803 memset(&ramrod_param, 0, sizeof(ramrod_param)); 2804 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); 2805 ramrod_param.vlan_mac_obj = &bnx2x_leading_vfq(vf, vlan_obj); 2806 ramrod_param.ramrod_flags = ramrod_flags; 2807 ramrod_param.user_req.u.vlan.vlan = vlan; 2808 ramrod_param.user_req.cmd = add ? BNX2X_VLAN_MAC_ADD 2809 : BNX2X_VLAN_MAC_DEL; 2810 rc = bnx2x_config_vlan_mac(bp, &ramrod_param); 2811 if (rc) { 2812 BNX2X_ERR("failed to configure vlan\n"); 2813 return -EINVAL; 2814 } 2815 2816 return 0; 2817 } 2818 2819 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos, 2820 __be16 vlan_proto) 2821 { 2822 struct pf_vf_bulletin_content *bulletin = NULL; 2823 struct bnx2x *bp = netdev_priv(dev); 2824 struct bnx2x_vlan_mac_obj *vlan_obj; 2825 unsigned long vlan_mac_flags = 0; 2826 unsigned long ramrod_flags = 0; 2827 struct bnx2x_virtf *vf = NULL; 2828 int i, rc; 2829 2830 if (vlan > 4095) { 2831 BNX2X_ERR("illegal vlan value %d\n", vlan); 2832 return -EINVAL; 2833 } 2834 2835 if (vlan_proto != htons(ETH_P_8021Q)) 2836 return -EPROTONOSUPPORT; 2837 2838 DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n", 2839 vfidx, vlan, 0); 2840 2841 /* sanity and init */ 2842 rc = bnx2x_vf_op_prep(bp, vfidx, &vf, &bulletin, true); 2843 if (rc) 2844 return rc; 2845 2846 /* update PF's copy of the VF's bulletin. No point in posting the vlan 2847 * to the VF since it doesn't have anything to do with it. But it useful 2848 * to store it here in case the VF is not up yet and we can only 2849 * configure the vlan later when it does. Treat vlan id 0 as remove the 2850 * Host tag. 2851 */ 2852 mutex_lock(&bp->vfdb->bulletin_mutex); 2853 2854 if (vlan > 0) 2855 bulletin->valid_bitmap |= 1 << VLAN_VALID; 2856 else 2857 bulletin->valid_bitmap &= ~(1 << VLAN_VALID); 2858 bulletin->vlan = vlan; 2859 2860 /* Post update on VF's bulletin board */ 2861 rc = bnx2x_post_vf_bulletin(bp, vfidx); 2862 if (rc) 2863 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx); 2864 mutex_unlock(&bp->vfdb->bulletin_mutex); 2865 2866 /* is vf initialized and queue set up? */ 2867 if (vf->state != VF_ENABLED || 2868 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)) != 2869 BNX2X_Q_LOGICAL_STATE_ACTIVE) 2870 return rc; 2871 2872 /* User should be able to see error in system logs */ 2873 if (!bnx2x_validate_vf_sp_objs(bp, vf, true)) 2874 return -EINVAL; 2875 2876 /* must lock vfpf channel to protect against vf flows */ 2877 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN); 2878 2879 /* remove existing vlans */ 2880 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); 2881 vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj); 2882 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags, 2883 &ramrod_flags); 2884 if (rc) { 2885 BNX2X_ERR("failed to delete vlans\n"); 2886 rc = -EINVAL; 2887 goto out; 2888 } 2889 2890 /* clear accept_any_vlan when HV forces vlan, otherwise 2891 * according to VF capabilities 2892 */ 2893 if (vlan || !(vf->cfg_flags & VF_CFG_VLAN_FILTER)) 2894 bnx2x_set_vf_vlan_acceptance(bp, vf, !vlan); 2895 2896 rc = bnx2x_set_vf_vlan_filter(bp, vf, vlan, true); 2897 if (rc) 2898 goto out; 2899 2900 /* send queue update ramrods to configure default vlan and 2901 * silent vlan removal 2902 */ 2903 for_each_vfq(vf, i) { 2904 struct bnx2x_queue_state_params q_params = {NULL}; 2905 struct bnx2x_queue_update_params *update_params; 2906 2907 q_params.q_obj = &bnx2x_vfq(vf, i, sp_obj); 2908 2909 /* validate the Q is UP */ 2910 if (bnx2x_get_q_logical_state(bp, q_params.q_obj) != 2911 BNX2X_Q_LOGICAL_STATE_ACTIVE) 2912 continue; 2913 2914 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags); 2915 q_params.cmd = BNX2X_Q_CMD_UPDATE; 2916 update_params = &q_params.params.update; 2917 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG, 2918 &update_params->update_flags); 2919 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG, 2920 &update_params->update_flags); 2921 if (vlan == 0) { 2922 /* if vlan is 0 then we want to leave the VF traffic 2923 * untagged, and leave the incoming traffic untouched 2924 * (i.e. do not remove any vlan tags). 2925 */ 2926 __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN, 2927 &update_params->update_flags); 2928 __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM, 2929 &update_params->update_flags); 2930 } else { 2931 /* configure default vlan to vf queue and set silent 2932 * vlan removal (the vf remains unaware of this vlan). 2933 */ 2934 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN, 2935 &update_params->update_flags); 2936 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM, 2937 &update_params->update_flags); 2938 update_params->def_vlan = vlan; 2939 update_params->silent_removal_value = 2940 vlan & VLAN_VID_MASK; 2941 update_params->silent_removal_mask = VLAN_VID_MASK; 2942 } 2943 2944 /* Update the Queue state */ 2945 rc = bnx2x_queue_state_change(bp, &q_params); 2946 if (rc) { 2947 BNX2X_ERR("Failed to configure default VLAN queue %d\n", 2948 i); 2949 goto out; 2950 } 2951 } 2952 out: 2953 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN); 2954 2955 if (rc) 2956 DP(BNX2X_MSG_IOV, 2957 "updated VF[%d] vlan configuration (vlan = %d)\n", 2958 vfidx, vlan); 2959 2960 return rc; 2961 } 2962 2963 int bnx2x_set_vf_spoofchk(struct net_device *dev, int idx, bool val) 2964 { 2965 struct bnx2x *bp = netdev_priv(dev); 2966 struct bnx2x_virtf *vf; 2967 int i, rc = 0; 2968 2969 vf = BP_VF(bp, idx); 2970 if (!vf) 2971 return -EINVAL; 2972 2973 /* nothing to do */ 2974 if (vf->spoofchk == val) 2975 return 0; 2976 2977 vf->spoofchk = val ? 1 : 0; 2978 2979 DP(BNX2X_MSG_IOV, "%s spoofchk for VF %d\n", 2980 val ? "enabling" : "disabling", idx); 2981 2982 /* is vf initialized and queue set up? */ 2983 if (vf->state != VF_ENABLED || 2984 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)) != 2985 BNX2X_Q_LOGICAL_STATE_ACTIVE) 2986 return rc; 2987 2988 /* User should be able to see error in system logs */ 2989 if (!bnx2x_validate_vf_sp_objs(bp, vf, true)) 2990 return -EINVAL; 2991 2992 /* send queue update ramrods to configure spoofchk */ 2993 for_each_vfq(vf, i) { 2994 struct bnx2x_queue_state_params q_params = {NULL}; 2995 struct bnx2x_queue_update_params *update_params; 2996 2997 q_params.q_obj = &bnx2x_vfq(vf, i, sp_obj); 2998 2999 /* validate the Q is UP */ 3000 if (bnx2x_get_q_logical_state(bp, q_params.q_obj) != 3001 BNX2X_Q_LOGICAL_STATE_ACTIVE) 3002 continue; 3003 3004 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags); 3005 q_params.cmd = BNX2X_Q_CMD_UPDATE; 3006 update_params = &q_params.params.update; 3007 __set_bit(BNX2X_Q_UPDATE_ANTI_SPOOF_CHNG, 3008 &update_params->update_flags); 3009 if (val) { 3010 __set_bit(BNX2X_Q_UPDATE_ANTI_SPOOF, 3011 &update_params->update_flags); 3012 } else { 3013 __clear_bit(BNX2X_Q_UPDATE_ANTI_SPOOF, 3014 &update_params->update_flags); 3015 } 3016 3017 /* Update the Queue state */ 3018 rc = bnx2x_queue_state_change(bp, &q_params); 3019 if (rc) { 3020 BNX2X_ERR("Failed to %s spoofchk on VF %d - vfq %d\n", 3021 val ? "enable" : "disable", idx, i); 3022 goto out; 3023 } 3024 } 3025 out: 3026 if (!rc) 3027 DP(BNX2X_MSG_IOV, 3028 "%s spoofchk for VF[%d]\n", val ? "Enabled" : "Disabled", 3029 idx); 3030 3031 return rc; 3032 } 3033 3034 /* crc is the first field in the bulletin board. Compute the crc over the 3035 * entire bulletin board excluding the crc field itself. Use the length field 3036 * as the Bulletin Board was posted by a PF with possibly a different version 3037 * from the vf which will sample it. Therefore, the length is computed by the 3038 * PF and then used blindly by the VF. 3039 */ 3040 u32 bnx2x_crc_vf_bulletin(struct pf_vf_bulletin_content *bulletin) 3041 { 3042 return crc32(BULLETIN_CRC_SEED, 3043 ((u8 *)bulletin) + sizeof(bulletin->crc), 3044 bulletin->length - sizeof(bulletin->crc)); 3045 } 3046 3047 /* Check for new posts on the bulletin board */ 3048 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp) 3049 { 3050 struct pf_vf_bulletin_content *bulletin; 3051 int attempts; 3052 3053 /* sampling structure in mid post may result with corrupted data 3054 * validate crc to ensure coherency. 3055 */ 3056 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) { 3057 u32 crc; 3058 3059 /* sample the bulletin board */ 3060 memcpy(&bp->shadow_bulletin, bp->pf2vf_bulletin, 3061 sizeof(union pf_vf_bulletin)); 3062 3063 crc = bnx2x_crc_vf_bulletin(&bp->shadow_bulletin.content); 3064 3065 if (bp->shadow_bulletin.content.crc == crc) 3066 break; 3067 3068 BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n", 3069 bp->shadow_bulletin.content.crc, crc); 3070 } 3071 3072 if (attempts >= BULLETIN_ATTEMPTS) { 3073 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n", 3074 attempts); 3075 return PFVF_BULLETIN_CRC_ERR; 3076 } 3077 bulletin = &bp->shadow_bulletin.content; 3078 3079 /* bulletin board hasn't changed since last sample */ 3080 if (bp->old_bulletin.version == bulletin->version) 3081 return PFVF_BULLETIN_UNCHANGED; 3082 3083 /* the mac address in bulletin board is valid and is new */ 3084 if (bulletin->valid_bitmap & 1 << MAC_ADDR_VALID && 3085 !ether_addr_equal(bulletin->mac, bp->old_bulletin.mac)) { 3086 /* update new mac to net device */ 3087 memcpy(bp->dev->dev_addr, bulletin->mac, ETH_ALEN); 3088 } 3089 3090 if (bulletin->valid_bitmap & (1 << LINK_VALID)) { 3091 DP(BNX2X_MSG_IOV, "link update speed %d flags %x\n", 3092 bulletin->link_speed, bulletin->link_flags); 3093 3094 bp->vf_link_vars.line_speed = bulletin->link_speed; 3095 bp->vf_link_vars.link_report_flags = 0; 3096 /* Link is down */ 3097 if (bulletin->link_flags & VFPF_LINK_REPORT_LINK_DOWN) 3098 __set_bit(BNX2X_LINK_REPORT_LINK_DOWN, 3099 &bp->vf_link_vars.link_report_flags); 3100 /* Full DUPLEX */ 3101 if (bulletin->link_flags & VFPF_LINK_REPORT_FULL_DUPLEX) 3102 __set_bit(BNX2X_LINK_REPORT_FD, 3103 &bp->vf_link_vars.link_report_flags); 3104 /* Rx Flow Control is ON */ 3105 if (bulletin->link_flags & VFPF_LINK_REPORT_RX_FC_ON) 3106 __set_bit(BNX2X_LINK_REPORT_RX_FC_ON, 3107 &bp->vf_link_vars.link_report_flags); 3108 /* Tx Flow Control is ON */ 3109 if (bulletin->link_flags & VFPF_LINK_REPORT_TX_FC_ON) 3110 __set_bit(BNX2X_LINK_REPORT_TX_FC_ON, 3111 &bp->vf_link_vars.link_report_flags); 3112 __bnx2x_link_report(bp); 3113 } 3114 3115 /* copy new bulletin board to bp */ 3116 memcpy(&bp->old_bulletin, bulletin, 3117 sizeof(struct pf_vf_bulletin_content)); 3118 3119 return PFVF_BULLETIN_UPDATED; 3120 } 3121 3122 void bnx2x_timer_sriov(struct bnx2x *bp) 3123 { 3124 bnx2x_sample_bulletin(bp); 3125 3126 /* if channel is down we need to self destruct */ 3127 if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) 3128 bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN, 3129 BNX2X_MSG_IOV); 3130 } 3131 3132 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp) 3133 { 3134 /* vf doorbells are embedded within the regview */ 3135 return bp->regview + PXP_VF_ADDR_DB_START; 3136 } 3137 3138 void bnx2x_vf_pci_dealloc(struct bnx2x *bp) 3139 { 3140 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping, 3141 sizeof(struct bnx2x_vf_mbx_msg)); 3142 BNX2X_PCI_FREE(bp->pf2vf_bulletin, bp->pf2vf_bulletin_mapping, 3143 sizeof(union pf_vf_bulletin)); 3144 } 3145 3146 int bnx2x_vf_pci_alloc(struct bnx2x *bp) 3147 { 3148 mutex_init(&bp->vf2pf_mutex); 3149 3150 /* allocate vf2pf mailbox for vf to pf channel */ 3151 bp->vf2pf_mbox = BNX2X_PCI_ALLOC(&bp->vf2pf_mbox_mapping, 3152 sizeof(struct bnx2x_vf_mbx_msg)); 3153 if (!bp->vf2pf_mbox) 3154 goto alloc_mem_err; 3155 3156 /* allocate pf 2 vf bulletin board */ 3157 bp->pf2vf_bulletin = BNX2X_PCI_ALLOC(&bp->pf2vf_bulletin_mapping, 3158 sizeof(union pf_vf_bulletin)); 3159 if (!bp->pf2vf_bulletin) 3160 goto alloc_mem_err; 3161 3162 bnx2x_vf_bulletin_finalize(&bp->pf2vf_bulletin->content, true); 3163 3164 return 0; 3165 3166 alloc_mem_err: 3167 bnx2x_vf_pci_dealloc(bp); 3168 return -ENOMEM; 3169 } 3170 3171 void bnx2x_iov_channel_down(struct bnx2x *bp) 3172 { 3173 int vf_idx; 3174 struct pf_vf_bulletin_content *bulletin; 3175 3176 if (!IS_SRIOV(bp)) 3177 return; 3178 3179 for_each_vf(bp, vf_idx) { 3180 /* locate this VFs bulletin board and update the channel down 3181 * bit 3182 */ 3183 bulletin = BP_VF_BULLETIN(bp, vf_idx); 3184 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN; 3185 3186 /* update vf bulletin board */ 3187 bnx2x_post_vf_bulletin(bp, vf_idx); 3188 } 3189 } 3190 3191 void bnx2x_iov_task(struct work_struct *work) 3192 { 3193 struct bnx2x *bp = container_of(work, struct bnx2x, iov_task.work); 3194 3195 if (!netif_running(bp->dev)) 3196 return; 3197 3198 if (test_and_clear_bit(BNX2X_IOV_HANDLE_FLR, 3199 &bp->iov_task_state)) 3200 bnx2x_vf_handle_flr_event(bp); 3201 3202 if (test_and_clear_bit(BNX2X_IOV_HANDLE_VF_MSG, 3203 &bp->iov_task_state)) 3204 bnx2x_vf_mbx(bp); 3205 } 3206 3207 void bnx2x_schedule_iov_task(struct bnx2x *bp, enum bnx2x_iov_flag flag) 3208 { 3209 smp_mb__before_atomic(); 3210 set_bit(flag, &bp->iov_task_state); 3211 smp_mb__after_atomic(); 3212 DP(BNX2X_MSG_IOV, "Scheduling iov task [Flag: %d]\n", flag); 3213 queue_delayed_work(bnx2x_iov_wq, &bp->iov_task, 0); 3214 } 3215