1 /* bnx2x_sriov.c: Broadcom Everest network driver. 2 * 3 * Copyright 2009-2013 Broadcom Corporation 4 * 5 * Unless you and Broadcom execute a separate written software license 6 * agreement governing use of this software, this software is licensed to you 7 * under the terms of the GNU General Public License version 2, available 8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). 9 * 10 * Notwithstanding the above, under no circumstances may you combine this 11 * software in any way with any other Broadcom software provided under a 12 * license other than the GPL, without Broadcom's express prior written 13 * consent. 14 * 15 * Maintained by: Eilon Greenstein <eilong@broadcom.com> 16 * Written by: Shmulik Ravid <shmulikr@broadcom.com> 17 * Ariel Elior <ariele@broadcom.com> 18 * 19 */ 20 #include "bnx2x.h" 21 #include "bnx2x_init.h" 22 #include "bnx2x_cmn.h" 23 #include <linux/crc32.h> 24 25 /* General service functions */ 26 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid, 27 u16 pf_id) 28 { 29 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid), 30 pf_id); 31 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid), 32 pf_id); 33 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid), 34 pf_id); 35 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid), 36 pf_id); 37 } 38 39 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid, 40 u8 enable) 41 { 42 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid), 43 enable); 44 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid), 45 enable); 46 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid), 47 enable); 48 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid), 49 enable); 50 } 51 52 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid) 53 { 54 int idx; 55 56 for_each_vf(bp, idx) 57 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid) 58 break; 59 return idx; 60 } 61 62 static 63 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid) 64 { 65 u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid); 66 return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL; 67 } 68 69 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf, 70 u8 igu_sb_id, u8 segment, u16 index, u8 op, 71 u8 update) 72 { 73 /* acking a VF sb through the PF - use the GRC */ 74 u32 ctl; 75 u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA; 76 u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL; 77 u32 func_encode = vf->abs_vfid; 78 u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id; 79 struct igu_regular cmd_data = {0}; 80 81 cmd_data.sb_id_and_flags = 82 ((index << IGU_REGULAR_SB_INDEX_SHIFT) | 83 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | 84 (update << IGU_REGULAR_BUPDATE_SHIFT) | 85 (op << IGU_REGULAR_ENABLE_INT_SHIFT)); 86 87 ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT | 88 func_encode << IGU_CTRL_REG_FID_SHIFT | 89 IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT; 90 91 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", 92 cmd_data.sb_id_and_flags, igu_addr_data); 93 REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags); 94 mmiowb(); 95 barrier(); 96 97 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", 98 ctl, igu_addr_ctl); 99 REG_WR(bp, igu_addr_ctl, ctl); 100 mmiowb(); 101 barrier(); 102 } 103 /* VFOP - VF slow-path operation support */ 104 105 #define BNX2X_VFOP_FILTER_ADD_CNT_MAX 0x10000 106 107 /* VFOP operations states */ 108 enum bnx2x_vfop_qctor_state { 109 BNX2X_VFOP_QCTOR_INIT, 110 BNX2X_VFOP_QCTOR_SETUP, 111 BNX2X_VFOP_QCTOR_INT_EN 112 }; 113 114 enum bnx2x_vfop_qdtor_state { 115 BNX2X_VFOP_QDTOR_HALT, 116 BNX2X_VFOP_QDTOR_TERMINATE, 117 BNX2X_VFOP_QDTOR_CFCDEL, 118 BNX2X_VFOP_QDTOR_DONE 119 }; 120 121 enum bnx2x_vfop_vlan_mac_state { 122 BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE, 123 BNX2X_VFOP_VLAN_MAC_CLEAR, 124 BNX2X_VFOP_VLAN_MAC_CHK_DONE, 125 BNX2X_VFOP_MAC_CONFIG_LIST, 126 BNX2X_VFOP_VLAN_CONFIG_LIST, 127 BNX2X_VFOP_VLAN_CONFIG_LIST_0 128 }; 129 130 enum bnx2x_vfop_qsetup_state { 131 BNX2X_VFOP_QSETUP_CTOR, 132 BNX2X_VFOP_QSETUP_VLAN0, 133 BNX2X_VFOP_QSETUP_DONE 134 }; 135 136 enum bnx2x_vfop_mcast_state { 137 BNX2X_VFOP_MCAST_DEL, 138 BNX2X_VFOP_MCAST_ADD, 139 BNX2X_VFOP_MCAST_CHK_DONE 140 }; 141 enum bnx2x_vfop_qflr_state { 142 BNX2X_VFOP_QFLR_CLR_VLAN, 143 BNX2X_VFOP_QFLR_CLR_MAC, 144 BNX2X_VFOP_QFLR_TERMINATE, 145 BNX2X_VFOP_QFLR_DONE 146 }; 147 148 enum bnx2x_vfop_flr_state { 149 BNX2X_VFOP_FLR_QUEUES, 150 BNX2X_VFOP_FLR_HW 151 }; 152 153 enum bnx2x_vfop_close_state { 154 BNX2X_VFOP_CLOSE_QUEUES, 155 BNX2X_VFOP_CLOSE_HW 156 }; 157 158 enum bnx2x_vfop_rxmode_state { 159 BNX2X_VFOP_RXMODE_CONFIG, 160 BNX2X_VFOP_RXMODE_DONE 161 }; 162 163 enum bnx2x_vfop_qteardown_state { 164 BNX2X_VFOP_QTEARDOWN_RXMODE, 165 BNX2X_VFOP_QTEARDOWN_CLR_VLAN, 166 BNX2X_VFOP_QTEARDOWN_CLR_MAC, 167 BNX2X_VFOP_QTEARDOWN_QDTOR, 168 BNX2X_VFOP_QTEARDOWN_DONE 169 }; 170 171 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0) 172 173 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf, 174 struct bnx2x_queue_init_params *init_params, 175 struct bnx2x_queue_setup_params *setup_params, 176 u16 q_idx, u16 sb_idx) 177 { 178 DP(BNX2X_MSG_IOV, 179 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d", 180 vf->abs_vfid, 181 q_idx, 182 sb_idx, 183 init_params->tx.sb_cq_index, 184 init_params->tx.hc_rate, 185 setup_params->flags, 186 setup_params->txq_params.traffic_type); 187 } 188 189 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf, 190 struct bnx2x_queue_init_params *init_params, 191 struct bnx2x_queue_setup_params *setup_params, 192 u16 q_idx, u16 sb_idx) 193 { 194 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params; 195 196 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n" 197 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n", 198 vf->abs_vfid, 199 q_idx, 200 sb_idx, 201 init_params->rx.sb_cq_index, 202 init_params->rx.hc_rate, 203 setup_params->gen_params.mtu, 204 rxq_params->buf_sz, 205 rxq_params->sge_buf_sz, 206 rxq_params->max_sges_pkt, 207 rxq_params->tpa_agg_sz, 208 setup_params->flags, 209 rxq_params->drop_flags, 210 rxq_params->cache_line_log); 211 } 212 213 void bnx2x_vfop_qctor_prep(struct bnx2x *bp, 214 struct bnx2x_virtf *vf, 215 struct bnx2x_vf_queue *q, 216 struct bnx2x_vfop_qctor_params *p, 217 unsigned long q_type) 218 { 219 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init; 220 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup; 221 222 /* INIT */ 223 224 /* Enable host coalescing in the transition to INIT state */ 225 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags)) 226 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags); 227 228 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags)) 229 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags); 230 231 /* FW SB ID */ 232 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 233 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 234 235 /* context */ 236 init_p->cxts[0] = q->cxt; 237 238 /* SETUP */ 239 240 /* Setup-op general parameters */ 241 setup_p->gen_params.spcl_id = vf->sp_cl_id; 242 setup_p->gen_params.stat_id = vfq_stat_id(vf, q); 243 244 /* Setup-op pause params: 245 * Nothing to do, the pause thresholds are set by default to 0 which 246 * effectively turns off the feature for this queue. We don't want 247 * one queue (VF) to interfering with another queue (another VF) 248 */ 249 if (vf->cfg_flags & VF_CFG_FW_FC) 250 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n", 251 vf->abs_vfid); 252 /* Setup-op flags: 253 * collect statistics, zero statistics, local-switching, security, 254 * OV for Flex10, RSS and MCAST for leading 255 */ 256 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags)) 257 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags); 258 259 /* for VFs, enable tx switching, bd coherency, and mac address 260 * anti-spoofing 261 */ 262 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags); 263 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags); 264 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags); 265 266 if (vfq_is_leading(q)) { 267 __set_bit(BNX2X_Q_FLG_LEADING_RSS, &setup_p->flags); 268 __set_bit(BNX2X_Q_FLG_MCAST, &setup_p->flags); 269 } 270 271 /* Setup-op rx parameters */ 272 if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) { 273 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params; 274 275 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q); 276 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx); 277 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid); 278 279 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags)) 280 rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES; 281 } 282 283 /* Setup-op tx parameters */ 284 if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) { 285 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss; 286 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 287 } 288 } 289 290 /* VFOP queue construction */ 291 static void bnx2x_vfop_qctor(struct bnx2x *bp, struct bnx2x_virtf *vf) 292 { 293 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 294 struct bnx2x_vfop_args_qctor *args = &vfop->args.qctor; 295 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate; 296 enum bnx2x_vfop_qctor_state state = vfop->state; 297 298 bnx2x_vfop_reset_wq(vf); 299 300 if (vfop->rc < 0) 301 goto op_err; 302 303 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 304 305 switch (state) { 306 case BNX2X_VFOP_QCTOR_INIT: 307 308 /* has this queue already been opened? */ 309 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) == 310 BNX2X_Q_LOGICAL_STATE_ACTIVE) { 311 DP(BNX2X_MSG_IOV, 312 "Entered qctor but queue was already up. Aborting gracefully\n"); 313 goto op_done; 314 } 315 316 /* next state */ 317 vfop->state = BNX2X_VFOP_QCTOR_SETUP; 318 319 q_params->cmd = BNX2X_Q_CMD_INIT; 320 vfop->rc = bnx2x_queue_state_change(bp, q_params); 321 322 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 323 324 case BNX2X_VFOP_QCTOR_SETUP: 325 /* next state */ 326 vfop->state = BNX2X_VFOP_QCTOR_INT_EN; 327 328 /* copy pre-prepared setup params to the queue-state params */ 329 vfop->op_p->qctor.qstate.params.setup = 330 vfop->op_p->qctor.prep_qsetup; 331 332 q_params->cmd = BNX2X_Q_CMD_SETUP; 333 vfop->rc = bnx2x_queue_state_change(bp, q_params); 334 335 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 336 337 case BNX2X_VFOP_QCTOR_INT_EN: 338 339 /* enable interrupts */ 340 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, args->sb_idx), 341 USTORM_ID, 0, IGU_INT_ENABLE, 0); 342 goto op_done; 343 default: 344 bnx2x_vfop_default(state); 345 } 346 op_err: 347 BNX2X_ERR("QCTOR[%d:%d] error: cmd %d, rc %d\n", 348 vf->abs_vfid, args->qid, q_params->cmd, vfop->rc); 349 op_done: 350 bnx2x_vfop_end(bp, vf, vfop); 351 op_pending: 352 return; 353 } 354 355 static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp, 356 struct bnx2x_virtf *vf, 357 struct bnx2x_vfop_cmd *cmd, 358 int qid) 359 { 360 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 361 362 if (vfop) { 363 vf->op_params.qctor.qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj); 364 365 vfop->args.qctor.qid = qid; 366 vfop->args.qctor.sb_idx = bnx2x_vfq(vf, qid, sb_idx); 367 368 bnx2x_vfop_opset(BNX2X_VFOP_QCTOR_INIT, 369 bnx2x_vfop_qctor, cmd->done); 370 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qctor, 371 cmd->block); 372 } 373 return -ENOMEM; 374 } 375 376 /* VFOP queue destruction */ 377 static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf) 378 { 379 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 380 struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor; 381 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate; 382 enum bnx2x_vfop_qdtor_state state = vfop->state; 383 384 bnx2x_vfop_reset_wq(vf); 385 386 if (vfop->rc < 0) 387 goto op_err; 388 389 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 390 391 switch (state) { 392 case BNX2X_VFOP_QDTOR_HALT: 393 394 /* has this queue already been stopped? */ 395 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) == 396 BNX2X_Q_LOGICAL_STATE_STOPPED) { 397 DP(BNX2X_MSG_IOV, 398 "Entered qdtor but queue was already stopped. Aborting gracefully\n"); 399 goto op_done; 400 } 401 402 /* next state */ 403 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE; 404 405 q_params->cmd = BNX2X_Q_CMD_HALT; 406 vfop->rc = bnx2x_queue_state_change(bp, q_params); 407 408 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 409 410 case BNX2X_VFOP_QDTOR_TERMINATE: 411 /* next state */ 412 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL; 413 414 q_params->cmd = BNX2X_Q_CMD_TERMINATE; 415 vfop->rc = bnx2x_queue_state_change(bp, q_params); 416 417 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 418 419 case BNX2X_VFOP_QDTOR_CFCDEL: 420 /* next state */ 421 vfop->state = BNX2X_VFOP_QDTOR_DONE; 422 423 q_params->cmd = BNX2X_Q_CMD_CFC_DEL; 424 vfop->rc = bnx2x_queue_state_change(bp, q_params); 425 426 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 427 op_err: 428 BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n", 429 vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc); 430 op_done: 431 case BNX2X_VFOP_QDTOR_DONE: 432 /* invalidate the context */ 433 qdtor->cxt->ustorm_ag_context.cdu_usage = 0; 434 qdtor->cxt->xstorm_ag_context.cdu_reserved = 0; 435 bnx2x_vfop_end(bp, vf, vfop); 436 return; 437 default: 438 bnx2x_vfop_default(state); 439 } 440 op_pending: 441 return; 442 } 443 444 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp, 445 struct bnx2x_virtf *vf, 446 struct bnx2x_vfop_cmd *cmd, 447 int qid) 448 { 449 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 450 451 if (vfop) { 452 struct bnx2x_queue_state_params *qstate = 453 &vf->op_params.qctor.qstate; 454 455 memset(qstate, 0, sizeof(*qstate)); 456 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj); 457 458 vfop->args.qdtor.qid = qid; 459 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt); 460 461 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT, 462 bnx2x_vfop_qdtor, cmd->done); 463 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor, 464 cmd->block); 465 } 466 DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop.\n", vf->abs_vfid); 467 return -ENOMEM; 468 } 469 470 static void 471 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid) 472 { 473 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 474 if (vf) { 475 if (!vf_sb_count(vf)) 476 vf->igu_base_id = igu_sb_id; 477 ++vf_sb_count(vf); 478 } 479 } 480 481 /* VFOP MAC/VLAN helpers */ 482 static inline void bnx2x_vfop_credit(struct bnx2x *bp, 483 struct bnx2x_vfop *vfop, 484 struct bnx2x_vlan_mac_obj *obj) 485 { 486 struct bnx2x_vfop_args_filters *args = &vfop->args.filters; 487 488 /* update credit only if there is no error 489 * and a valid credit counter 490 */ 491 if (!vfop->rc && args->credit) { 492 int cnt = 0; 493 struct list_head *pos; 494 495 list_for_each(pos, &obj->head) 496 cnt++; 497 498 atomic_set(args->credit, cnt); 499 } 500 } 501 502 static int bnx2x_vfop_set_user_req(struct bnx2x *bp, 503 struct bnx2x_vfop_filter *pos, 504 struct bnx2x_vlan_mac_data *user_req) 505 { 506 user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD : 507 BNX2X_VLAN_MAC_DEL; 508 509 switch (pos->type) { 510 case BNX2X_VFOP_FILTER_MAC: 511 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN); 512 break; 513 case BNX2X_VFOP_FILTER_VLAN: 514 user_req->u.vlan.vlan = pos->vid; 515 break; 516 default: 517 BNX2X_ERR("Invalid filter type, skipping\n"); 518 return 1; 519 } 520 return 0; 521 } 522 523 static int 524 bnx2x_vfop_config_vlan0(struct bnx2x *bp, 525 struct bnx2x_vlan_mac_ramrod_params *vlan_mac, 526 bool add) 527 { 528 int rc; 529 530 vlan_mac->user_req.cmd = add ? BNX2X_VLAN_MAC_ADD : 531 BNX2X_VLAN_MAC_DEL; 532 vlan_mac->user_req.u.vlan.vlan = 0; 533 534 rc = bnx2x_config_vlan_mac(bp, vlan_mac); 535 if (rc == -EEXIST) 536 rc = 0; 537 return rc; 538 } 539 540 static int bnx2x_vfop_config_list(struct bnx2x *bp, 541 struct bnx2x_vfop_filters *filters, 542 struct bnx2x_vlan_mac_ramrod_params *vlan_mac) 543 { 544 struct bnx2x_vfop_filter *pos, *tmp; 545 struct list_head rollback_list, *filters_list = &filters->head; 546 struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req; 547 int rc = 0, cnt = 0; 548 549 INIT_LIST_HEAD(&rollback_list); 550 551 list_for_each_entry_safe(pos, tmp, filters_list, link) { 552 if (bnx2x_vfop_set_user_req(bp, pos, user_req)) 553 continue; 554 555 rc = bnx2x_config_vlan_mac(bp, vlan_mac); 556 if (rc >= 0) { 557 cnt += pos->add ? 1 : -1; 558 list_del(&pos->link); 559 list_add(&pos->link, &rollback_list); 560 rc = 0; 561 } else if (rc == -EEXIST) { 562 rc = 0; 563 } else { 564 BNX2X_ERR("Failed to add a new vlan_mac command\n"); 565 break; 566 } 567 } 568 569 /* rollback if error or too many rules added */ 570 if (rc || cnt > filters->add_cnt) { 571 BNX2X_ERR("error or too many rules added. Performing rollback\n"); 572 list_for_each_entry_safe(pos, tmp, &rollback_list, link) { 573 pos->add = !pos->add; /* reverse op */ 574 bnx2x_vfop_set_user_req(bp, pos, user_req); 575 bnx2x_config_vlan_mac(bp, vlan_mac); 576 list_del(&pos->link); 577 } 578 cnt = 0; 579 if (!rc) 580 rc = -EINVAL; 581 } 582 filters->add_cnt = cnt; 583 return rc; 584 } 585 586 /* VFOP set VLAN/MAC */ 587 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf) 588 { 589 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 590 struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac; 591 struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj; 592 struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter; 593 594 enum bnx2x_vfop_vlan_mac_state state = vfop->state; 595 596 if (vfop->rc < 0) 597 goto op_err; 598 599 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 600 601 bnx2x_vfop_reset_wq(vf); 602 603 switch (state) { 604 case BNX2X_VFOP_VLAN_MAC_CLEAR: 605 /* next state */ 606 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 607 608 /* do delete */ 609 vfop->rc = obj->delete_all(bp, obj, 610 &vlan_mac->user_req.vlan_mac_flags, 611 &vlan_mac->ramrod_flags); 612 613 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 614 615 case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE: 616 /* next state */ 617 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 618 619 /* do config */ 620 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac); 621 if (vfop->rc == -EEXIST) 622 vfop->rc = 0; 623 624 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 625 626 case BNX2X_VFOP_VLAN_MAC_CHK_DONE: 627 vfop->rc = !!obj->raw.check_pending(&obj->raw); 628 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 629 630 case BNX2X_VFOP_MAC_CONFIG_LIST: 631 /* next state */ 632 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 633 634 /* do list config */ 635 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac); 636 if (vfop->rc) 637 goto op_err; 638 639 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags); 640 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac); 641 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 642 643 case BNX2X_VFOP_VLAN_CONFIG_LIST: 644 /* next state */ 645 vfop->state = BNX2X_VFOP_VLAN_CONFIG_LIST_0; 646 647 /* remove vlan0 - could be no-op */ 648 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, false); 649 if (vfop->rc) 650 goto op_err; 651 652 /* Do vlan list config. if this operation fails we try to 653 * restore vlan0 to keep the queue is working order 654 */ 655 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac); 656 if (!vfop->rc) { 657 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags); 658 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac); 659 } 660 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); /* fall-through */ 661 662 case BNX2X_VFOP_VLAN_CONFIG_LIST_0: 663 /* next state */ 664 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 665 666 if (list_empty(&obj->head)) 667 /* add vlan0 */ 668 vfop->rc = bnx2x_vfop_config_vlan0(bp, vlan_mac, true); 669 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 670 671 default: 672 bnx2x_vfop_default(state); 673 } 674 op_err: 675 BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc); 676 op_done: 677 kfree(filters); 678 bnx2x_vfop_credit(bp, vfop, obj); 679 bnx2x_vfop_end(bp, vf, vfop); 680 op_pending: 681 return; 682 } 683 684 struct bnx2x_vfop_vlan_mac_flags { 685 bool drv_only; 686 bool dont_consume; 687 bool single_cmd; 688 bool add; 689 }; 690 691 static void 692 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod, 693 struct bnx2x_vfop_vlan_mac_flags *flags) 694 { 695 struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req; 696 697 memset(ramrod, 0, sizeof(*ramrod)); 698 699 /* ramrod flags */ 700 if (flags->drv_only) 701 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags); 702 if (flags->single_cmd) 703 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags); 704 705 /* mac_vlan flags */ 706 if (flags->dont_consume) 707 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags); 708 709 /* cmd */ 710 ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL; 711 } 712 713 static inline void 714 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod, 715 struct bnx2x_vfop_vlan_mac_flags *flags) 716 { 717 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags); 718 set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags); 719 } 720 721 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp, 722 struct bnx2x_virtf *vf, 723 struct bnx2x_vfop_cmd *cmd, 724 int qid, bool drv_only) 725 { 726 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 727 728 if (vfop) { 729 struct bnx2x_vfop_args_filters filters = { 730 .multi_filter = NULL, /* single */ 731 .credit = NULL, /* consume credit */ 732 }; 733 struct bnx2x_vfop_vlan_mac_flags flags = { 734 .drv_only = drv_only, 735 .dont_consume = (filters.credit != NULL), 736 .single_cmd = true, 737 .add = false /* don't care */, 738 }; 739 struct bnx2x_vlan_mac_ramrod_params *ramrod = 740 &vf->op_params.vlan_mac; 741 742 /* set ramrod params */ 743 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags); 744 745 /* set object */ 746 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); 747 748 /* set extra args */ 749 vfop->args.filters = filters; 750 751 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR, 752 bnx2x_vfop_vlan_mac, cmd->done); 753 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 754 cmd->block); 755 } 756 return -ENOMEM; 757 } 758 759 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp, 760 struct bnx2x_virtf *vf, 761 struct bnx2x_vfop_cmd *cmd, 762 struct bnx2x_vfop_filters *macs, 763 int qid, bool drv_only) 764 { 765 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 766 767 if (vfop) { 768 struct bnx2x_vfop_args_filters filters = { 769 .multi_filter = macs, 770 .credit = NULL, /* consume credit */ 771 }; 772 struct bnx2x_vfop_vlan_mac_flags flags = { 773 .drv_only = drv_only, 774 .dont_consume = (filters.credit != NULL), 775 .single_cmd = false, 776 .add = false, /* don't care since only the items in the 777 * filters list affect the sp operation, 778 * not the list itself 779 */ 780 }; 781 struct bnx2x_vlan_mac_ramrod_params *ramrod = 782 &vf->op_params.vlan_mac; 783 784 /* set ramrod params */ 785 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags); 786 787 /* set object */ 788 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); 789 790 /* set extra args */ 791 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX; 792 vfop->args.filters = filters; 793 794 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST, 795 bnx2x_vfop_vlan_mac, cmd->done); 796 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 797 cmd->block); 798 } 799 return -ENOMEM; 800 } 801 802 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp, 803 struct bnx2x_virtf *vf, 804 struct bnx2x_vfop_cmd *cmd, 805 int qid, u16 vid, bool add) 806 { 807 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 808 809 if (vfop) { 810 struct bnx2x_vfop_args_filters filters = { 811 .multi_filter = NULL, /* single command */ 812 .credit = &bnx2x_vfq(vf, qid, vlan_count), 813 }; 814 struct bnx2x_vfop_vlan_mac_flags flags = { 815 .drv_only = false, 816 .dont_consume = (filters.credit != NULL), 817 .single_cmd = true, 818 .add = add, 819 }; 820 struct bnx2x_vlan_mac_ramrod_params *ramrod = 821 &vf->op_params.vlan_mac; 822 823 /* set ramrod params */ 824 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags); 825 ramrod->user_req.u.vlan.vlan = vid; 826 827 /* set object */ 828 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 829 830 /* set extra args */ 831 vfop->args.filters = filters; 832 833 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE, 834 bnx2x_vfop_vlan_mac, cmd->done); 835 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 836 cmd->block); 837 } 838 return -ENOMEM; 839 } 840 841 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp, 842 struct bnx2x_virtf *vf, 843 struct bnx2x_vfop_cmd *cmd, 844 int qid, bool drv_only) 845 { 846 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 847 848 if (vfop) { 849 struct bnx2x_vfop_args_filters filters = { 850 .multi_filter = NULL, /* single command */ 851 .credit = &bnx2x_vfq(vf, qid, vlan_count), 852 }; 853 struct bnx2x_vfop_vlan_mac_flags flags = { 854 .drv_only = drv_only, 855 .dont_consume = (filters.credit != NULL), 856 .single_cmd = true, 857 .add = false, /* don't care */ 858 }; 859 struct bnx2x_vlan_mac_ramrod_params *ramrod = 860 &vf->op_params.vlan_mac; 861 862 /* set ramrod params */ 863 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags); 864 865 /* set object */ 866 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 867 868 /* set extra args */ 869 vfop->args.filters = filters; 870 871 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR, 872 bnx2x_vfop_vlan_mac, cmd->done); 873 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 874 cmd->block); 875 } 876 return -ENOMEM; 877 } 878 879 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp, 880 struct bnx2x_virtf *vf, 881 struct bnx2x_vfop_cmd *cmd, 882 struct bnx2x_vfop_filters *vlans, 883 int qid, bool drv_only) 884 { 885 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 886 887 if (vfop) { 888 struct bnx2x_vfop_args_filters filters = { 889 .multi_filter = vlans, 890 .credit = &bnx2x_vfq(vf, qid, vlan_count), 891 }; 892 struct bnx2x_vfop_vlan_mac_flags flags = { 893 .drv_only = drv_only, 894 .dont_consume = (filters.credit != NULL), 895 .single_cmd = false, 896 .add = false, /* don't care */ 897 }; 898 struct bnx2x_vlan_mac_ramrod_params *ramrod = 899 &vf->op_params.vlan_mac; 900 901 /* set ramrod params */ 902 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags); 903 904 /* set object */ 905 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 906 907 /* set extra args */ 908 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) - 909 atomic_read(filters.credit); 910 911 vfop->args.filters = filters; 912 913 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST, 914 bnx2x_vfop_vlan_mac, cmd->done); 915 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 916 cmd->block); 917 } 918 return -ENOMEM; 919 } 920 921 /* VFOP queue setup (queue constructor + set vlan 0) */ 922 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf) 923 { 924 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 925 int qid = vfop->args.qctor.qid; 926 enum bnx2x_vfop_qsetup_state state = vfop->state; 927 struct bnx2x_vfop_cmd cmd = { 928 .done = bnx2x_vfop_qsetup, 929 .block = false, 930 }; 931 932 if (vfop->rc < 0) 933 goto op_err; 934 935 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 936 937 switch (state) { 938 case BNX2X_VFOP_QSETUP_CTOR: 939 /* init the queue ctor command */ 940 vfop->state = BNX2X_VFOP_QSETUP_VLAN0; 941 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid); 942 if (vfop->rc) 943 goto op_err; 944 return; 945 946 case BNX2X_VFOP_QSETUP_VLAN0: 947 /* skip if non-leading or FPGA/EMU*/ 948 if (qid) 949 goto op_done; 950 951 /* init the queue set-vlan command (for vlan 0) */ 952 vfop->state = BNX2X_VFOP_QSETUP_DONE; 953 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true); 954 if (vfop->rc) 955 goto op_err; 956 return; 957 op_err: 958 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc); 959 op_done: 960 case BNX2X_VFOP_QSETUP_DONE: 961 bnx2x_vfop_end(bp, vf, vfop); 962 return; 963 default: 964 bnx2x_vfop_default(state); 965 } 966 } 967 968 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp, 969 struct bnx2x_virtf *vf, 970 struct bnx2x_vfop_cmd *cmd, 971 int qid) 972 { 973 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 974 975 if (vfop) { 976 vfop->args.qctor.qid = qid; 977 978 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR, 979 bnx2x_vfop_qsetup, cmd->done); 980 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup, 981 cmd->block); 982 } 983 return -ENOMEM; 984 } 985 986 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */ 987 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf) 988 { 989 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 990 int qid = vfop->args.qx.qid; 991 enum bnx2x_vfop_qflr_state state = vfop->state; 992 struct bnx2x_queue_state_params *qstate; 993 struct bnx2x_vfop_cmd cmd; 994 995 bnx2x_vfop_reset_wq(vf); 996 997 if (vfop->rc < 0) 998 goto op_err; 999 1000 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state); 1001 1002 cmd.done = bnx2x_vfop_qflr; 1003 cmd.block = false; 1004 1005 switch (state) { 1006 case BNX2X_VFOP_QFLR_CLR_VLAN: 1007 /* vlan-clear-all: driver-only, don't consume credit */ 1008 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC; 1009 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, true); 1010 if (vfop->rc) 1011 goto op_err; 1012 return; 1013 1014 case BNX2X_VFOP_QFLR_CLR_MAC: 1015 /* mac-clear-all: driver only consume credit */ 1016 vfop->state = BNX2X_VFOP_QFLR_TERMINATE; 1017 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, true); 1018 DP(BNX2X_MSG_IOV, 1019 "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d", 1020 vf->abs_vfid, vfop->rc); 1021 if (vfop->rc) 1022 goto op_err; 1023 return; 1024 1025 case BNX2X_VFOP_QFLR_TERMINATE: 1026 qstate = &vfop->op_p->qctor.qstate; 1027 memset(qstate , 0, sizeof(*qstate)); 1028 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj); 1029 vfop->state = BNX2X_VFOP_QFLR_DONE; 1030 1031 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n", 1032 vf->abs_vfid, qstate->q_obj->state); 1033 1034 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) { 1035 qstate->q_obj->state = BNX2X_Q_STATE_STOPPED; 1036 qstate->cmd = BNX2X_Q_CMD_TERMINATE; 1037 vfop->rc = bnx2x_queue_state_change(bp, qstate); 1038 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND); 1039 } else { 1040 goto op_done; 1041 } 1042 1043 op_err: 1044 BNX2X_ERR("QFLR[%d:%d] error: rc %d\n", 1045 vf->abs_vfid, qid, vfop->rc); 1046 op_done: 1047 case BNX2X_VFOP_QFLR_DONE: 1048 bnx2x_vfop_end(bp, vf, vfop); 1049 return; 1050 default: 1051 bnx2x_vfop_default(state); 1052 } 1053 op_pending: 1054 return; 1055 } 1056 1057 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp, 1058 struct bnx2x_virtf *vf, 1059 struct bnx2x_vfop_cmd *cmd, 1060 int qid) 1061 { 1062 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1063 1064 if (vfop) { 1065 vfop->args.qx.qid = qid; 1066 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN, 1067 bnx2x_vfop_qflr, cmd->done); 1068 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr, 1069 cmd->block); 1070 } 1071 return -ENOMEM; 1072 } 1073 1074 /* VFOP multi-casts */ 1075 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf) 1076 { 1077 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1078 struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast; 1079 struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw; 1080 struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list; 1081 enum bnx2x_vfop_mcast_state state = vfop->state; 1082 int i; 1083 1084 bnx2x_vfop_reset_wq(vf); 1085 1086 if (vfop->rc < 0) 1087 goto op_err; 1088 1089 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1090 1091 switch (state) { 1092 case BNX2X_VFOP_MCAST_DEL: 1093 /* clear existing mcasts */ 1094 vfop->state = BNX2X_VFOP_MCAST_ADD; 1095 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL); 1096 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 1097 1098 case BNX2X_VFOP_MCAST_ADD: 1099 if (raw->check_pending(raw)) 1100 goto op_pending; 1101 1102 if (args->mc_num) { 1103 /* update mcast list on the ramrod params */ 1104 INIT_LIST_HEAD(&mcast->mcast_list); 1105 for (i = 0; i < args->mc_num; i++) 1106 list_add_tail(&(args->mc[i].link), 1107 &mcast->mcast_list); 1108 /* add new mcasts */ 1109 vfop->state = BNX2X_VFOP_MCAST_CHK_DONE; 1110 vfop->rc = bnx2x_config_mcast(bp, mcast, 1111 BNX2X_MCAST_CMD_ADD); 1112 } 1113 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 1114 1115 case BNX2X_VFOP_MCAST_CHK_DONE: 1116 vfop->rc = raw->check_pending(raw) ? 1 : 0; 1117 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 1118 default: 1119 bnx2x_vfop_default(state); 1120 } 1121 op_err: 1122 BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc); 1123 op_done: 1124 kfree(args->mc); 1125 bnx2x_vfop_end(bp, vf, vfop); 1126 op_pending: 1127 return; 1128 } 1129 1130 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp, 1131 struct bnx2x_virtf *vf, 1132 struct bnx2x_vfop_cmd *cmd, 1133 bnx2x_mac_addr_t *mcasts, 1134 int mcast_num, bool drv_only) 1135 { 1136 struct bnx2x_vfop *vfop = NULL; 1137 size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem); 1138 struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) : 1139 NULL; 1140 1141 if (!mc_sz || mc) { 1142 vfop = bnx2x_vfop_add(bp, vf); 1143 if (vfop) { 1144 int i; 1145 struct bnx2x_mcast_ramrod_params *ramrod = 1146 &vf->op_params.mcast; 1147 1148 /* set ramrod params */ 1149 memset(ramrod, 0, sizeof(*ramrod)); 1150 ramrod->mcast_obj = &vf->mcast_obj; 1151 if (drv_only) 1152 set_bit(RAMROD_DRV_CLR_ONLY, 1153 &ramrod->ramrod_flags); 1154 1155 /* copy mcasts pointers */ 1156 vfop->args.mc_list.mc_num = mcast_num; 1157 vfop->args.mc_list.mc = mc; 1158 for (i = 0; i < mcast_num; i++) 1159 mc[i].mac = mcasts[i]; 1160 1161 bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL, 1162 bnx2x_vfop_mcast, cmd->done); 1163 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast, 1164 cmd->block); 1165 } else { 1166 kfree(mc); 1167 } 1168 } 1169 return -ENOMEM; 1170 } 1171 1172 /* VFOP rx-mode */ 1173 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf) 1174 { 1175 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1176 struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode; 1177 enum bnx2x_vfop_rxmode_state state = vfop->state; 1178 1179 bnx2x_vfop_reset_wq(vf); 1180 1181 if (vfop->rc < 0) 1182 goto op_err; 1183 1184 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1185 1186 switch (state) { 1187 case BNX2X_VFOP_RXMODE_CONFIG: 1188 /* next state */ 1189 vfop->state = BNX2X_VFOP_RXMODE_DONE; 1190 1191 vfop->rc = bnx2x_config_rx_mode(bp, ramrod); 1192 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 1193 op_err: 1194 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc); 1195 op_done: 1196 case BNX2X_VFOP_RXMODE_DONE: 1197 bnx2x_vfop_end(bp, vf, vfop); 1198 return; 1199 default: 1200 bnx2x_vfop_default(state); 1201 } 1202 op_pending: 1203 return; 1204 } 1205 1206 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp, 1207 struct bnx2x_virtf *vf, 1208 struct bnx2x_vfop_cmd *cmd, 1209 int qid, unsigned long accept_flags) 1210 { 1211 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid); 1212 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1213 1214 if (vfop) { 1215 struct bnx2x_rx_mode_ramrod_params *ramrod = 1216 &vf->op_params.rx_mode; 1217 1218 memset(ramrod, 0, sizeof(*ramrod)); 1219 1220 /* Prepare ramrod parameters */ 1221 ramrod->cid = vfq->cid; 1222 ramrod->cl_id = vfq_cl_id(vf, vfq); 1223 ramrod->rx_mode_obj = &bp->rx_mode_obj; 1224 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid); 1225 1226 ramrod->rx_accept_flags = accept_flags; 1227 ramrod->tx_accept_flags = accept_flags; 1228 ramrod->pstate = &vf->filter_state; 1229 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING; 1230 1231 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state); 1232 set_bit(RAMROD_RX, &ramrod->ramrod_flags); 1233 set_bit(RAMROD_TX, &ramrod->ramrod_flags); 1234 1235 ramrod->rdata = 1236 bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2); 1237 ramrod->rdata_mapping = 1238 bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2); 1239 1240 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG, 1241 bnx2x_vfop_rxmode, cmd->done); 1242 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode, 1243 cmd->block); 1244 } 1245 return -ENOMEM; 1246 } 1247 1248 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs, 1249 * queue destructor) 1250 */ 1251 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf) 1252 { 1253 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1254 int qid = vfop->args.qx.qid; 1255 enum bnx2x_vfop_qteardown_state state = vfop->state; 1256 struct bnx2x_vfop_cmd cmd; 1257 1258 if (vfop->rc < 0) 1259 goto op_err; 1260 1261 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1262 1263 cmd.done = bnx2x_vfop_qdown; 1264 cmd.block = false; 1265 1266 switch (state) { 1267 case BNX2X_VFOP_QTEARDOWN_RXMODE: 1268 /* Drop all */ 1269 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN; 1270 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0); 1271 if (vfop->rc) 1272 goto op_err; 1273 return; 1274 1275 case BNX2X_VFOP_QTEARDOWN_CLR_VLAN: 1276 /* vlan-clear-all: don't consume credit */ 1277 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC; 1278 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false); 1279 if (vfop->rc) 1280 goto op_err; 1281 return; 1282 1283 case BNX2X_VFOP_QTEARDOWN_CLR_MAC: 1284 /* mac-clear-all: consume credit */ 1285 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR; 1286 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false); 1287 if (vfop->rc) 1288 goto op_err; 1289 return; 1290 1291 case BNX2X_VFOP_QTEARDOWN_QDTOR: 1292 /* run the queue destruction flow */ 1293 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n"); 1294 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE; 1295 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n"); 1296 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid); 1297 DP(BNX2X_MSG_IOV, "returned from cmd\n"); 1298 if (vfop->rc) 1299 goto op_err; 1300 return; 1301 op_err: 1302 BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n", 1303 vf->abs_vfid, qid, vfop->rc); 1304 1305 case BNX2X_VFOP_QTEARDOWN_DONE: 1306 bnx2x_vfop_end(bp, vf, vfop); 1307 return; 1308 default: 1309 bnx2x_vfop_default(state); 1310 } 1311 } 1312 1313 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp, 1314 struct bnx2x_virtf *vf, 1315 struct bnx2x_vfop_cmd *cmd, 1316 int qid) 1317 { 1318 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1319 1320 if (vfop) { 1321 vfop->args.qx.qid = qid; 1322 bnx2x_vfop_opset(BNX2X_VFOP_QTEARDOWN_RXMODE, 1323 bnx2x_vfop_qdown, cmd->done); 1324 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown, 1325 cmd->block); 1326 } 1327 1328 return -ENOMEM; 1329 } 1330 1331 /* VF enable primitives 1332 * when pretend is required the caller is responsible 1333 * for calling pretend prior to calling these routines 1334 */ 1335 1336 /* internal vf enable - until vf is enabled internally all transactions 1337 * are blocked. this routine should always be called last with pretend. 1338 */ 1339 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable) 1340 { 1341 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0); 1342 } 1343 1344 /* clears vf error in all semi blocks */ 1345 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid) 1346 { 1347 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid); 1348 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid); 1349 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid); 1350 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid); 1351 } 1352 1353 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid) 1354 { 1355 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5; 1356 u32 was_err_reg = 0; 1357 1358 switch (was_err_group) { 1359 case 0: 1360 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR; 1361 break; 1362 case 1: 1363 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR; 1364 break; 1365 case 2: 1366 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR; 1367 break; 1368 case 3: 1369 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR; 1370 break; 1371 } 1372 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f)); 1373 } 1374 1375 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf) 1376 { 1377 int i; 1378 u32 val; 1379 1380 /* Set VF masks and configuration - pretend */ 1381 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1382 1383 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0); 1384 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0); 1385 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0); 1386 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0); 1387 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0); 1388 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0); 1389 1390 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION); 1391 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN); 1392 if (vf->cfg_flags & VF_CFG_INT_SIMD) 1393 val |= IGU_VF_CONF_SINGLE_ISR_EN; 1394 val &= ~IGU_VF_CONF_PARENT_MASK; 1395 val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */ 1396 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); 1397 1398 DP(BNX2X_MSG_IOV, 1399 "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n", 1400 vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION)); 1401 1402 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1403 1404 /* iterate over all queues, clear sb consumer */ 1405 for (i = 0; i < vf_sb_count(vf); i++) { 1406 u8 igu_sb_id = vf_igu_sb(vf, i); 1407 1408 /* zero prod memory */ 1409 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0); 1410 1411 /* clear sb state machine */ 1412 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id, 1413 false /* VF */); 1414 1415 /* disable + update */ 1416 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0, 1417 IGU_INT_DISABLE, 1); 1418 } 1419 } 1420 1421 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid) 1422 { 1423 /* set the VF-PF association in the FW */ 1424 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp)); 1425 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1); 1426 1427 /* clear vf errors*/ 1428 bnx2x_vf_semi_clear_err(bp, abs_vfid); 1429 bnx2x_vf_pglue_clear_err(bp, abs_vfid); 1430 1431 /* internal vf-enable - pretend */ 1432 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid)); 1433 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid); 1434 bnx2x_vf_enable_internal(bp, true); 1435 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1436 } 1437 1438 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf) 1439 { 1440 /* Reset vf in IGU interrupts are still disabled */ 1441 bnx2x_vf_igu_reset(bp, vf); 1442 1443 /* pretend to enable the vf with the PBF */ 1444 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1445 REG_WR(bp, PBF_REG_DISABLE_VF, 0); 1446 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1447 } 1448 1449 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid) 1450 { 1451 struct pci_dev *dev; 1452 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 1453 1454 if (!vf) 1455 goto unknown_dev; 1456 1457 dev = pci_get_bus_and_slot(vf->bus, vf->devfn); 1458 if (dev) 1459 return bnx2x_is_pcie_pending(dev); 1460 1461 unknown_dev: 1462 BNX2X_ERR("Unknown device\n"); 1463 return false; 1464 } 1465 1466 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid) 1467 { 1468 /* Wait 100ms */ 1469 msleep(100); 1470 1471 /* Verify no pending pci transactions */ 1472 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid)) 1473 BNX2X_ERR("PCIE Transactions still pending\n"); 1474 1475 return 0; 1476 } 1477 1478 /* must be called after the number of PF queues and the number of VFs are 1479 * both known 1480 */ 1481 static void 1482 bnx2x_iov_static_resc(struct bnx2x *bp, struct vf_pf_resc_request *resc) 1483 { 1484 u16 vlan_count = 0; 1485 1486 /* will be set only during VF-ACQUIRE */ 1487 resc->num_rxqs = 0; 1488 resc->num_txqs = 0; 1489 1490 /* no credit calculcis for macs (just yet) */ 1491 resc->num_mac_filters = 1; 1492 1493 /* divvy up vlan rules */ 1494 vlan_count = bp->vlans_pool.check(&bp->vlans_pool); 1495 vlan_count = 1 << ilog2(vlan_count); 1496 resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp); 1497 1498 /* no real limitation */ 1499 resc->num_mc_filters = 0; 1500 1501 /* num_sbs already set */ 1502 } 1503 1504 /* FLR routines: */ 1505 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf) 1506 { 1507 /* reset the state variables */ 1508 bnx2x_iov_static_resc(bp, &vf->alloc_resc); 1509 vf->state = VF_FREE; 1510 } 1511 1512 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf) 1513 { 1514 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp); 1515 1516 /* DQ usage counter */ 1517 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1518 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT, 1519 "DQ VF usage counter timed out", 1520 poll_cnt); 1521 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1522 1523 /* FW cleanup command - poll for the results */ 1524 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid), 1525 poll_cnt)) 1526 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid); 1527 1528 /* verify TX hw is flushed */ 1529 bnx2x_tx_hw_flushed(bp, poll_cnt); 1530 } 1531 1532 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf) 1533 { 1534 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1535 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx; 1536 enum bnx2x_vfop_flr_state state = vfop->state; 1537 struct bnx2x_vfop_cmd cmd = { 1538 .done = bnx2x_vfop_flr, 1539 .block = false, 1540 }; 1541 1542 if (vfop->rc < 0) 1543 goto op_err; 1544 1545 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1546 1547 switch (state) { 1548 case BNX2X_VFOP_FLR_QUEUES: 1549 /* the cleanup operations are valid if and only if the VF 1550 * was first acquired. 1551 */ 1552 if (++(qx->qid) < vf_rxq_count(vf)) { 1553 vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd, 1554 qx->qid); 1555 if (vfop->rc) 1556 goto op_err; 1557 return; 1558 } 1559 /* remove multicasts */ 1560 vfop->state = BNX2X_VFOP_FLR_HW; 1561 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 1562 0, true); 1563 if (vfop->rc) 1564 goto op_err; 1565 return; 1566 case BNX2X_VFOP_FLR_HW: 1567 1568 /* dispatch final cleanup and wait for HW queues to flush */ 1569 bnx2x_vf_flr_clnup_hw(bp, vf); 1570 1571 /* release VF resources */ 1572 bnx2x_vf_free_resc(bp, vf); 1573 1574 /* re-open the mailbox */ 1575 bnx2x_vf_enable_mbx(bp, vf->abs_vfid); 1576 1577 goto op_done; 1578 default: 1579 bnx2x_vfop_default(state); 1580 } 1581 op_err: 1582 BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc); 1583 op_done: 1584 vf->flr_clnup_stage = VF_FLR_ACK; 1585 bnx2x_vfop_end(bp, vf, vfop); 1586 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR); 1587 } 1588 1589 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp, 1590 struct bnx2x_virtf *vf, 1591 vfop_handler_t done) 1592 { 1593 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1594 if (vfop) { 1595 vfop->args.qx.qid = -1; /* loop */ 1596 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES, 1597 bnx2x_vfop_flr, done); 1598 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false); 1599 } 1600 return -ENOMEM; 1601 } 1602 1603 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf) 1604 { 1605 int i = prev_vf ? prev_vf->index + 1 : 0; 1606 struct bnx2x_virtf *vf; 1607 1608 /* find next VF to cleanup */ 1609 next_vf_to_clean: 1610 for (; 1611 i < BNX2X_NR_VIRTFN(bp) && 1612 (bnx2x_vf(bp, i, state) != VF_RESET || 1613 bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN); 1614 i++) 1615 ; 1616 1617 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. num of vfs: %d\n", i, 1618 BNX2X_NR_VIRTFN(bp)); 1619 1620 if (i < BNX2X_NR_VIRTFN(bp)) { 1621 vf = BP_VF(bp, i); 1622 1623 /* lock the vf pf channel */ 1624 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR); 1625 1626 /* invoke the VF FLR SM */ 1627 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) { 1628 BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n", 1629 vf->abs_vfid); 1630 1631 /* mark the VF to be ACKED and continue */ 1632 vf->flr_clnup_stage = VF_FLR_ACK; 1633 goto next_vf_to_clean; 1634 } 1635 return; 1636 } 1637 1638 /* we are done, update vf records */ 1639 for_each_vf(bp, i) { 1640 vf = BP_VF(bp, i); 1641 1642 if (vf->flr_clnup_stage != VF_FLR_ACK) 1643 continue; 1644 1645 vf->flr_clnup_stage = VF_FLR_EPILOG; 1646 } 1647 1648 /* Acknowledge the handled VFs. 1649 * we are acknowledge all the vfs which an flr was requested for, even 1650 * if amongst them there are such that we never opened, since the mcp 1651 * will interrupt us immediately again if we only ack some of the bits, 1652 * resulting in an endless loop. This can happen for example in KVM 1653 * where an 'all ones' flr request is sometimes given by hyper visor 1654 */ 1655 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n", 1656 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]); 1657 for (i = 0; i < FLRD_VFS_DWORDS; i++) 1658 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 1659 bp->vfdb->flrd_vfs[i]); 1660 1661 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0); 1662 1663 /* clear the acked bits - better yet if the MCP implemented 1664 * write to clear semantics 1665 */ 1666 for (i = 0; i < FLRD_VFS_DWORDS; i++) 1667 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0); 1668 } 1669 1670 void bnx2x_vf_handle_flr_event(struct bnx2x *bp) 1671 { 1672 int i; 1673 1674 /* Read FLR'd VFs */ 1675 for (i = 0; i < FLRD_VFS_DWORDS; i++) 1676 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]); 1677 1678 DP(BNX2X_MSG_MCP, 1679 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n", 1680 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]); 1681 1682 for_each_vf(bp, i) { 1683 struct bnx2x_virtf *vf = BP_VF(bp, i); 1684 u32 reset = 0; 1685 1686 if (vf->abs_vfid < 32) 1687 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid); 1688 else 1689 reset = bp->vfdb->flrd_vfs[1] & 1690 (1 << (vf->abs_vfid - 32)); 1691 1692 if (reset) { 1693 /* set as reset and ready for cleanup */ 1694 vf->state = VF_RESET; 1695 vf->flr_clnup_stage = VF_FLR_CLN; 1696 1697 DP(BNX2X_MSG_IOV, 1698 "Initiating Final cleanup for VF %d\n", 1699 vf->abs_vfid); 1700 } 1701 } 1702 1703 /* do the FLR cleanup for all marked VFs*/ 1704 bnx2x_vf_flr_clnup(bp, NULL); 1705 } 1706 1707 /* IOV global initialization routines */ 1708 void bnx2x_iov_init_dq(struct bnx2x *bp) 1709 { 1710 if (!IS_SRIOV(bp)) 1711 return; 1712 1713 /* Set the DQ such that the CID reflect the abs_vfid */ 1714 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0); 1715 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS)); 1716 1717 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to 1718 * the PF L2 queues 1719 */ 1720 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID); 1721 1722 /* The VF window size is the log2 of the max number of CIDs per VF */ 1723 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND); 1724 1725 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match 1726 * the Pf doorbell size although the 2 are independent. 1727 */ 1728 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 1729 BNX2X_DB_SHIFT - BNX2X_DB_MIN_SHIFT); 1730 1731 /* No security checks for now - 1732 * configure single rule (out of 16) mask = 0x1, value = 0x0, 1733 * CID range 0 - 0x1ffff 1734 */ 1735 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1); 1736 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0); 1737 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0); 1738 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff); 1739 1740 /* set the number of VF alllowed doorbells to the full DQ range */ 1741 REG_WR(bp, DORQ_REG_VF_NORM_MAX_CID_COUNT, 0x20000); 1742 1743 /* set the VF doorbell threshold */ 1744 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4); 1745 } 1746 1747 void bnx2x_iov_init_dmae(struct bnx2x *bp) 1748 { 1749 DP(BNX2X_MSG_IOV, "SRIOV is %s\n", IS_SRIOV(bp) ? "ON" : "OFF"); 1750 if (!IS_SRIOV(bp)) 1751 return; 1752 1753 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0); 1754 } 1755 1756 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid) 1757 { 1758 struct pci_dev *dev = bp->pdev; 1759 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1760 1761 return dev->bus->number + ((dev->devfn + iov->offset + 1762 iov->stride * vfid) >> 8); 1763 } 1764 1765 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid) 1766 { 1767 struct pci_dev *dev = bp->pdev; 1768 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1769 1770 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff; 1771 } 1772 1773 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf) 1774 { 1775 int i, n; 1776 struct pci_dev *dev = bp->pdev; 1777 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1778 1779 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) { 1780 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i); 1781 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i); 1782 1783 size /= iov->total; 1784 vf->bars[n].bar = start + size * vf->abs_vfid; 1785 vf->bars[n].size = size; 1786 } 1787 } 1788 1789 static int bnx2x_ari_enabled(struct pci_dev *dev) 1790 { 1791 return dev->bus->self && dev->bus->self->ari_enabled; 1792 } 1793 1794 static void 1795 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp) 1796 { 1797 int sb_id; 1798 u32 val; 1799 u8 fid; 1800 1801 /* IGU in normal mode - read CAM */ 1802 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) { 1803 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4); 1804 if (!(val & IGU_REG_MAPPING_MEMORY_VALID)) 1805 continue; 1806 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID); 1807 if (!(fid & IGU_FID_ENCODE_IS_PF)) 1808 bnx2x_vf_set_igu_info(bp, sb_id, 1809 (fid & IGU_FID_VF_NUM_MASK)); 1810 1811 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n", 1812 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"), 1813 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) : 1814 (fid & IGU_FID_VF_NUM_MASK)), sb_id, 1815 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)); 1816 } 1817 } 1818 1819 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp) 1820 { 1821 if (bp->vfdb) { 1822 kfree(bp->vfdb->vfqs); 1823 kfree(bp->vfdb->vfs); 1824 kfree(bp->vfdb); 1825 } 1826 bp->vfdb = NULL; 1827 } 1828 1829 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov) 1830 { 1831 int pos; 1832 struct pci_dev *dev = bp->pdev; 1833 1834 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); 1835 if (!pos) { 1836 BNX2X_ERR("failed to find SRIOV capability in device\n"); 1837 return -ENODEV; 1838 } 1839 1840 iov->pos = pos; 1841 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos); 1842 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl); 1843 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total); 1844 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial); 1845 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset); 1846 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride); 1847 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz); 1848 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap); 1849 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link); 1850 1851 return 0; 1852 } 1853 1854 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov) 1855 { 1856 u32 val; 1857 1858 /* read the SRIOV capability structure 1859 * The fields can be read via configuration read or 1860 * directly from the device (starting at offset PCICFG_OFFSET) 1861 */ 1862 if (bnx2x_sriov_pci_cfg_info(bp, iov)) 1863 return -ENODEV; 1864 1865 /* get the number of SRIOV bars */ 1866 iov->nres = 0; 1867 1868 /* read the first_vfid */ 1869 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF); 1870 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK) 1871 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp)); 1872 1873 DP(BNX2X_MSG_IOV, 1874 "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", 1875 BP_FUNC(bp), 1876 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total, 1877 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz); 1878 1879 return 0; 1880 } 1881 1882 static u8 bnx2x_iov_get_max_queue_count(struct bnx2x *bp) 1883 { 1884 int i; 1885 u8 queue_count = 0; 1886 1887 if (IS_SRIOV(bp)) 1888 for_each_vf(bp, i) 1889 queue_count += bnx2x_vf(bp, i, alloc_resc.num_sbs); 1890 1891 return queue_count; 1892 } 1893 1894 /* must be called after PF bars are mapped */ 1895 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param, 1896 int num_vfs_param) 1897 { 1898 int err, i, qcount; 1899 struct bnx2x_sriov *iov; 1900 struct pci_dev *dev = bp->pdev; 1901 1902 bp->vfdb = NULL; 1903 1904 /* verify is pf */ 1905 if (IS_VF(bp)) 1906 return 0; 1907 1908 /* verify sriov capability is present in configuration space */ 1909 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV)) 1910 return 0; 1911 1912 /* verify chip revision */ 1913 if (CHIP_IS_E1x(bp)) 1914 return 0; 1915 1916 /* check if SRIOV support is turned off */ 1917 if (!num_vfs_param) 1918 return 0; 1919 1920 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */ 1921 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) { 1922 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n", 1923 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID); 1924 return 0; 1925 } 1926 1927 /* SRIOV can be enabled only with MSIX */ 1928 if (int_mode_param == BNX2X_INT_MODE_MSI || 1929 int_mode_param == BNX2X_INT_MODE_INTX) 1930 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n"); 1931 1932 err = -EIO; 1933 /* verify ari is enabled */ 1934 if (!bnx2x_ari_enabled(bp->pdev)) { 1935 BNX2X_ERR("ARI not supported, SRIOV can not be enabled\n"); 1936 return err; 1937 } 1938 1939 /* verify igu is in normal mode */ 1940 if (CHIP_INT_MODE_IS_BC(bp)) { 1941 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n"); 1942 return err; 1943 } 1944 1945 /* allocate the vfs database */ 1946 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL); 1947 if (!bp->vfdb) { 1948 BNX2X_ERR("failed to allocate vf database\n"); 1949 err = -ENOMEM; 1950 goto failed; 1951 } 1952 1953 /* get the sriov info - Linux already collected all the pertinent 1954 * information, however the sriov structure is for the private use 1955 * of the pci module. Also we want this information regardless 1956 * of the hyper-visor. 1957 */ 1958 iov = &(bp->vfdb->sriov); 1959 err = bnx2x_sriov_info(bp, iov); 1960 if (err) 1961 goto failed; 1962 1963 /* SR-IOV capability was enabled but there are no VFs*/ 1964 if (iov->total == 0) 1965 goto failed; 1966 1967 /* calculate the actual number of VFs */ 1968 iov->nr_virtfn = min_t(u16, iov->total, (u16)num_vfs_param); 1969 1970 /* allocate the vf array */ 1971 bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) * 1972 BNX2X_NR_VIRTFN(bp), GFP_KERNEL); 1973 if (!bp->vfdb->vfs) { 1974 BNX2X_ERR("failed to allocate vf array\n"); 1975 err = -ENOMEM; 1976 goto failed; 1977 } 1978 1979 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */ 1980 for_each_vf(bp, i) { 1981 bnx2x_vf(bp, i, index) = i; 1982 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i; 1983 bnx2x_vf(bp, i, state) = VF_FREE; 1984 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head)); 1985 mutex_init(&bnx2x_vf(bp, i, op_mutex)); 1986 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE; 1987 } 1988 1989 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */ 1990 bnx2x_get_vf_igu_cam_info(bp); 1991 1992 /* get the total queue count and allocate the global queue arrays */ 1993 qcount = bnx2x_iov_get_max_queue_count(bp); 1994 1995 /* allocate the queue arrays for all VFs */ 1996 bp->vfdb->vfqs = kzalloc(qcount * sizeof(struct bnx2x_vf_queue), 1997 GFP_KERNEL); 1998 if (!bp->vfdb->vfqs) { 1999 BNX2X_ERR("failed to allocate vf queue array\n"); 2000 err = -ENOMEM; 2001 goto failed; 2002 } 2003 2004 return 0; 2005 failed: 2006 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err); 2007 __bnx2x_iov_free_vfdb(bp); 2008 return err; 2009 } 2010 2011 void bnx2x_iov_remove_one(struct bnx2x *bp) 2012 { 2013 /* if SRIOV is not enabled there's nothing to do */ 2014 if (!IS_SRIOV(bp)) 2015 return; 2016 2017 DP(BNX2X_MSG_IOV, "about to call disable sriov\n"); 2018 pci_disable_sriov(bp->pdev); 2019 DP(BNX2X_MSG_IOV, "sriov disabled\n"); 2020 2021 /* free vf database */ 2022 __bnx2x_iov_free_vfdb(bp); 2023 } 2024 2025 void bnx2x_iov_free_mem(struct bnx2x *bp) 2026 { 2027 int i; 2028 2029 if (!IS_SRIOV(bp)) 2030 return; 2031 2032 /* free vfs hw contexts */ 2033 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 2034 struct hw_dma *cxt = &bp->vfdb->context[i]; 2035 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size); 2036 } 2037 2038 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr, 2039 BP_VFDB(bp)->sp_dma.mapping, 2040 BP_VFDB(bp)->sp_dma.size); 2041 2042 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr, 2043 BP_VF_MBX_DMA(bp)->mapping, 2044 BP_VF_MBX_DMA(bp)->size); 2045 2046 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr, 2047 BP_VF_BULLETIN_DMA(bp)->mapping, 2048 BP_VF_BULLETIN_DMA(bp)->size); 2049 } 2050 2051 int bnx2x_iov_alloc_mem(struct bnx2x *bp) 2052 { 2053 size_t tot_size; 2054 int i, rc = 0; 2055 2056 if (!IS_SRIOV(bp)) 2057 return rc; 2058 2059 /* allocate vfs hw contexts */ 2060 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) * 2061 BNX2X_CIDS_PER_VF * sizeof(union cdu_context); 2062 2063 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 2064 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i); 2065 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ); 2066 2067 if (cxt->size) { 2068 BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size); 2069 } else { 2070 cxt->addr = NULL; 2071 cxt->mapping = 0; 2072 } 2073 tot_size -= cxt->size; 2074 } 2075 2076 /* allocate vfs ramrods dma memory - client_init and set_mac */ 2077 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp); 2078 BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping, 2079 tot_size); 2080 BP_VFDB(bp)->sp_dma.size = tot_size; 2081 2082 /* allocate mailboxes */ 2083 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE; 2084 BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping, 2085 tot_size); 2086 BP_VF_MBX_DMA(bp)->size = tot_size; 2087 2088 /* allocate local bulletin boards */ 2089 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE; 2090 BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr, 2091 &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size); 2092 BP_VF_BULLETIN_DMA(bp)->size = tot_size; 2093 2094 return 0; 2095 2096 alloc_mem_err: 2097 return -ENOMEM; 2098 } 2099 2100 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf, 2101 struct bnx2x_vf_queue *q) 2102 { 2103 u8 cl_id = vfq_cl_id(vf, q); 2104 u8 func_id = FW_VF_HANDLE(vf->abs_vfid); 2105 unsigned long q_type = 0; 2106 2107 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type); 2108 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type); 2109 2110 /* Queue State object */ 2111 bnx2x_init_queue_obj(bp, &q->sp_obj, 2112 cl_id, &q->cid, 1, func_id, 2113 bnx2x_vf_sp(bp, vf, q_data), 2114 bnx2x_vf_sp_map(bp, vf, q_data), 2115 q_type); 2116 2117 DP(BNX2X_MSG_IOV, 2118 "initialized vf %d's queue object. func id set to %d\n", 2119 vf->abs_vfid, q->sp_obj.func_id); 2120 2121 /* mac/vlan objects are per queue, but only those 2122 * that belong to the leading queue are initialized 2123 */ 2124 if (vfq_is_leading(q)) { 2125 /* mac */ 2126 bnx2x_init_mac_obj(bp, &q->mac_obj, 2127 cl_id, q->cid, func_id, 2128 bnx2x_vf_sp(bp, vf, mac_rdata), 2129 bnx2x_vf_sp_map(bp, vf, mac_rdata), 2130 BNX2X_FILTER_MAC_PENDING, 2131 &vf->filter_state, 2132 BNX2X_OBJ_TYPE_RX_TX, 2133 &bp->macs_pool); 2134 /* vlan */ 2135 bnx2x_init_vlan_obj(bp, &q->vlan_obj, 2136 cl_id, q->cid, func_id, 2137 bnx2x_vf_sp(bp, vf, vlan_rdata), 2138 bnx2x_vf_sp_map(bp, vf, vlan_rdata), 2139 BNX2X_FILTER_VLAN_PENDING, 2140 &vf->filter_state, 2141 BNX2X_OBJ_TYPE_RX_TX, 2142 &bp->vlans_pool); 2143 2144 /* mcast */ 2145 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, cl_id, 2146 q->cid, func_id, func_id, 2147 bnx2x_vf_sp(bp, vf, mcast_rdata), 2148 bnx2x_vf_sp_map(bp, vf, mcast_rdata), 2149 BNX2X_FILTER_MCAST_PENDING, 2150 &vf->filter_state, 2151 BNX2X_OBJ_TYPE_RX_TX); 2152 2153 vf->leading_rss = cl_id; 2154 } 2155 } 2156 2157 /* called by bnx2x_nic_load */ 2158 int bnx2x_iov_nic_init(struct bnx2x *bp) 2159 { 2160 int vfid, qcount, i; 2161 2162 if (!IS_SRIOV(bp)) { 2163 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n"); 2164 return 0; 2165 } 2166 2167 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn); 2168 2169 /* initialize vf database */ 2170 for_each_vf(bp, vfid) { 2171 struct bnx2x_virtf *vf = BP_VF(bp, vfid); 2172 2173 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) * 2174 BNX2X_CIDS_PER_VF; 2175 2176 union cdu_context *base_cxt = (union cdu_context *) 2177 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr + 2178 (base_vf_cid & (ILT_PAGE_CIDS-1)); 2179 2180 DP(BNX2X_MSG_IOV, 2181 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n", 2182 vf->abs_vfid, vf_sb_count(vf), base_vf_cid, 2183 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt); 2184 2185 /* init statically provisioned resources */ 2186 bnx2x_iov_static_resc(bp, &vf->alloc_resc); 2187 2188 /* queues are initialized during VF-ACQUIRE */ 2189 2190 /* reserve the vf vlan credit */ 2191 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf)); 2192 2193 vf->filter_state = 0; 2194 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id); 2195 2196 /* init mcast object - This object will be re-initialized 2197 * during VF-ACQUIRE with the proper cl_id and cid. 2198 * It needs to be initialized here so that it can be safely 2199 * handled by a subsequent FLR flow. 2200 */ 2201 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF, 2202 0xFF, 0xFF, 0xFF, 2203 bnx2x_vf_sp(bp, vf, mcast_rdata), 2204 bnx2x_vf_sp_map(bp, vf, mcast_rdata), 2205 BNX2X_FILTER_MCAST_PENDING, 2206 &vf->filter_state, 2207 BNX2X_OBJ_TYPE_RX_TX); 2208 2209 /* set the mailbox message addresses */ 2210 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *) 2211 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid * 2212 MBX_MSG_ALIGNED_SIZE); 2213 2214 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping + 2215 vfid * MBX_MSG_ALIGNED_SIZE; 2216 2217 /* Enable vf mailbox */ 2218 bnx2x_vf_enable_mbx(bp, vf->abs_vfid); 2219 } 2220 2221 /* Final VF init */ 2222 qcount = 0; 2223 for_each_vf(bp, i) { 2224 struct bnx2x_virtf *vf = BP_VF(bp, i); 2225 2226 /* fill in the BDF and bars */ 2227 vf->bus = bnx2x_vf_bus(bp, i); 2228 vf->devfn = bnx2x_vf_devfn(bp, i); 2229 bnx2x_vf_set_bars(bp, vf); 2230 2231 DP(BNX2X_MSG_IOV, 2232 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n", 2233 vf->abs_vfid, vf->bus, vf->devfn, 2234 (unsigned)vf->bars[0].bar, vf->bars[0].size, 2235 (unsigned)vf->bars[1].bar, vf->bars[1].size, 2236 (unsigned)vf->bars[2].bar, vf->bars[2].size); 2237 2238 /* set local queue arrays */ 2239 vf->vfqs = &bp->vfdb->vfqs[qcount]; 2240 qcount += bnx2x_vf(bp, i, alloc_resc.num_sbs); 2241 } 2242 2243 return 0; 2244 } 2245 2246 /* called by bnx2x_chip_cleanup */ 2247 int bnx2x_iov_chip_cleanup(struct bnx2x *bp) 2248 { 2249 int i; 2250 2251 if (!IS_SRIOV(bp)) 2252 return 0; 2253 2254 /* release all the VFs */ 2255 for_each_vf(bp, i) 2256 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */ 2257 2258 return 0; 2259 } 2260 2261 /* called by bnx2x_init_hw_func, returns the next ilt line */ 2262 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line) 2263 { 2264 int i; 2265 struct bnx2x_ilt *ilt = BP_ILT(bp); 2266 2267 if (!IS_SRIOV(bp)) 2268 return line; 2269 2270 /* set vfs ilt lines */ 2271 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 2272 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i); 2273 2274 ilt->lines[line+i].page = hw_cxt->addr; 2275 ilt->lines[line+i].page_mapping = hw_cxt->mapping; 2276 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */ 2277 } 2278 return line + i; 2279 } 2280 2281 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid) 2282 { 2283 return ((cid >= BNX2X_FIRST_VF_CID) && 2284 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS)); 2285 } 2286 2287 static 2288 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp, 2289 struct bnx2x_vf_queue *vfq, 2290 union event_ring_elem *elem) 2291 { 2292 unsigned long ramrod_flags = 0; 2293 int rc = 0; 2294 2295 /* Always push next commands out, don't wait here */ 2296 set_bit(RAMROD_CONT, &ramrod_flags); 2297 2298 switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) { 2299 case BNX2X_FILTER_MAC_PENDING: 2300 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem, 2301 &ramrod_flags); 2302 break; 2303 case BNX2X_FILTER_VLAN_PENDING: 2304 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem, 2305 &ramrod_flags); 2306 break; 2307 default: 2308 BNX2X_ERR("Unsupported classification command: %d\n", 2309 elem->message.data.eth_event.echo); 2310 return; 2311 } 2312 if (rc < 0) 2313 BNX2X_ERR("Failed to schedule new commands: %d\n", rc); 2314 else if (rc > 0) 2315 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n"); 2316 } 2317 2318 static 2319 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp, 2320 struct bnx2x_virtf *vf) 2321 { 2322 struct bnx2x_mcast_ramrod_params rparam = {NULL}; 2323 int rc; 2324 2325 rparam.mcast_obj = &vf->mcast_obj; 2326 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw); 2327 2328 /* If there are pending mcast commands - send them */ 2329 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) { 2330 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); 2331 if (rc < 0) 2332 BNX2X_ERR("Failed to send pending mcast commands: %d\n", 2333 rc); 2334 } 2335 } 2336 2337 static 2338 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp, 2339 struct bnx2x_virtf *vf) 2340 { 2341 smp_mb__before_clear_bit(); 2342 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state); 2343 smp_mb__after_clear_bit(); 2344 } 2345 2346 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem) 2347 { 2348 struct bnx2x_virtf *vf; 2349 int qidx = 0, abs_vfid; 2350 u8 opcode; 2351 u16 cid = 0xffff; 2352 2353 if (!IS_SRIOV(bp)) 2354 return 1; 2355 2356 /* first get the cid - the only events we handle here are cfc-delete 2357 * and set-mac completion 2358 */ 2359 opcode = elem->message.opcode; 2360 2361 switch (opcode) { 2362 case EVENT_RING_OPCODE_CFC_DEL: 2363 cid = SW_CID((__force __le32) 2364 elem->message.data.cfc_del_event.cid); 2365 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid); 2366 break; 2367 case EVENT_RING_OPCODE_CLASSIFICATION_RULES: 2368 case EVENT_RING_OPCODE_MULTICAST_RULES: 2369 case EVENT_RING_OPCODE_FILTERS_RULES: 2370 cid = (elem->message.data.eth_event.echo & 2371 BNX2X_SWCID_MASK); 2372 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid); 2373 break; 2374 case EVENT_RING_OPCODE_VF_FLR: 2375 abs_vfid = elem->message.data.vf_flr_event.vf_id; 2376 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n", 2377 abs_vfid); 2378 goto get_vf; 2379 case EVENT_RING_OPCODE_MALICIOUS_VF: 2380 abs_vfid = elem->message.data.malicious_vf_event.vf_id; 2381 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d\n", 2382 abs_vfid); 2383 goto get_vf; 2384 default: 2385 return 1; 2386 } 2387 2388 /* check if the cid is the VF range */ 2389 if (!bnx2x_iov_is_vf_cid(bp, cid)) { 2390 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid); 2391 return 1; 2392 } 2393 2394 /* extract vf and rxq index from vf_cid - relies on the following: 2395 * 1. vfid on cid reflects the true abs_vfid 2396 * 2. the max number of VFs (per path) is 64 2397 */ 2398 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1); 2399 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1); 2400 get_vf: 2401 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 2402 2403 if (!vf) { 2404 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n", 2405 cid, abs_vfid); 2406 return 0; 2407 } 2408 2409 switch (opcode) { 2410 case EVENT_RING_OPCODE_CFC_DEL: 2411 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n", 2412 vf->abs_vfid, qidx); 2413 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp, 2414 &vfq_get(vf, 2415 qidx)->sp_obj, 2416 BNX2X_Q_CMD_CFC_DEL); 2417 break; 2418 case EVENT_RING_OPCODE_CLASSIFICATION_RULES: 2419 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n", 2420 vf->abs_vfid, qidx); 2421 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem); 2422 break; 2423 case EVENT_RING_OPCODE_MULTICAST_RULES: 2424 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n", 2425 vf->abs_vfid, qidx); 2426 bnx2x_vf_handle_mcast_eqe(bp, vf); 2427 break; 2428 case EVENT_RING_OPCODE_FILTERS_RULES: 2429 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n", 2430 vf->abs_vfid, qidx); 2431 bnx2x_vf_handle_filters_eqe(bp, vf); 2432 break; 2433 case EVENT_RING_OPCODE_VF_FLR: 2434 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n", 2435 vf->abs_vfid); 2436 /* Do nothing for now */ 2437 break; 2438 case EVENT_RING_OPCODE_MALICIOUS_VF: 2439 DP(BNX2X_MSG_IOV, "got VF [%d] MALICIOUS notification\n", 2440 vf->abs_vfid); 2441 /* Do nothing for now */ 2442 break; 2443 } 2444 /* SRIOV: reschedule any 'in_progress' operations */ 2445 bnx2x_iov_sp_event(bp, cid, false); 2446 2447 return 0; 2448 } 2449 2450 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid) 2451 { 2452 /* extract the vf from vf_cid - relies on the following: 2453 * 1. vfid on cid reflects the true abs_vfid 2454 * 2. the max number of VFs (per path) is 64 2455 */ 2456 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1); 2457 return bnx2x_vf_by_abs_fid(bp, abs_vfid); 2458 } 2459 2460 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid, 2461 struct bnx2x_queue_sp_obj **q_obj) 2462 { 2463 struct bnx2x_virtf *vf; 2464 2465 if (!IS_SRIOV(bp)) 2466 return; 2467 2468 vf = bnx2x_vf_by_cid(bp, vf_cid); 2469 2470 if (vf) { 2471 /* extract queue index from vf_cid - relies on the following: 2472 * 1. vfid on cid reflects the true abs_vfid 2473 * 2. the max number of VFs (per path) is 64 2474 */ 2475 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1); 2476 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj); 2477 } else { 2478 BNX2X_ERR("No vf matching cid %d\n", vf_cid); 2479 } 2480 } 2481 2482 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work) 2483 { 2484 struct bnx2x_virtf *vf; 2485 2486 /* check if the cid is the VF range */ 2487 if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid)) 2488 return; 2489 2490 vf = bnx2x_vf_by_cid(bp, vf_cid); 2491 if (vf) { 2492 /* set in_progress flag */ 2493 atomic_set(&vf->op_in_progress, 1); 2494 if (queue_work) 2495 queue_delayed_work(bnx2x_wq, &bp->sp_task, 0); 2496 } 2497 } 2498 2499 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp) 2500 { 2501 int i; 2502 int first_queue_query_index, num_queues_req; 2503 dma_addr_t cur_data_offset; 2504 struct stats_query_entry *cur_query_entry; 2505 u8 stats_count = 0; 2506 bool is_fcoe = false; 2507 2508 if (!IS_SRIOV(bp)) 2509 return; 2510 2511 if (!NO_FCOE(bp)) 2512 is_fcoe = true; 2513 2514 /* fcoe adds one global request and one queue request */ 2515 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe; 2516 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX - 2517 (is_fcoe ? 0 : 1); 2518 2519 DP(BNX2X_MSG_IOV, 2520 "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", 2521 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index, 2522 first_queue_query_index + num_queues_req); 2523 2524 cur_data_offset = bp->fw_stats_data_mapping + 2525 offsetof(struct bnx2x_fw_stats_data, queue_stats) + 2526 num_queues_req * sizeof(struct per_queue_stats); 2527 2528 cur_query_entry = &bp->fw_stats_req-> 2529 query[first_queue_query_index + num_queues_req]; 2530 2531 for_each_vf(bp, i) { 2532 int j; 2533 struct bnx2x_virtf *vf = BP_VF(bp, i); 2534 2535 if (vf->state != VF_ENABLED) { 2536 DP(BNX2X_MSG_IOV, 2537 "vf %d not enabled so no stats for it\n", 2538 vf->abs_vfid); 2539 continue; 2540 } 2541 2542 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid); 2543 for_each_vfq(vf, j) { 2544 struct bnx2x_vf_queue *rxq = vfq_get(vf, j); 2545 2546 /* collect stats fro active queues only */ 2547 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) == 2548 BNX2X_Q_LOGICAL_STATE_STOPPED) 2549 continue; 2550 2551 /* create stats query entry for this queue */ 2552 cur_query_entry->kind = STATS_TYPE_QUEUE; 2553 cur_query_entry->index = vfq_cl_id(vf, rxq); 2554 cur_query_entry->funcID = 2555 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid)); 2556 cur_query_entry->address.hi = 2557 cpu_to_le32(U64_HI(vf->fw_stat_map)); 2558 cur_query_entry->address.lo = 2559 cpu_to_le32(U64_LO(vf->fw_stat_map)); 2560 DP(BNX2X_MSG_IOV, 2561 "added address %x %x for vf %d queue %d client %d\n", 2562 cur_query_entry->address.hi, 2563 cur_query_entry->address.lo, cur_query_entry->funcID, 2564 j, cur_query_entry->index); 2565 cur_query_entry++; 2566 cur_data_offset += sizeof(struct per_queue_stats); 2567 stats_count++; 2568 } 2569 } 2570 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count; 2571 } 2572 2573 void bnx2x_iov_sp_task(struct bnx2x *bp) 2574 { 2575 int i; 2576 2577 if (!IS_SRIOV(bp)) 2578 return; 2579 /* Iterate over all VFs and invoke state transition for VFs with 2580 * 'in-progress' slow-path operations 2581 */ 2582 DP(BNX2X_MSG_IOV, "searching for pending vf operations\n"); 2583 for_each_vf(bp, i) { 2584 struct bnx2x_virtf *vf = BP_VF(bp, i); 2585 2586 if (!list_empty(&vf->op_list_head) && 2587 atomic_read(&vf->op_in_progress)) { 2588 DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i); 2589 bnx2x_vfop_cur(bp, vf)->transition(bp, vf); 2590 } 2591 } 2592 } 2593 2594 static inline 2595 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id) 2596 { 2597 int i; 2598 struct bnx2x_virtf *vf = NULL; 2599 2600 for_each_vf(bp, i) { 2601 vf = BP_VF(bp, i); 2602 if (stat_id >= vf->igu_base_id && 2603 stat_id < vf->igu_base_id + vf_sb_count(vf)) 2604 break; 2605 } 2606 return vf; 2607 } 2608 2609 /* VF API helpers */ 2610 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid, 2611 u8 enable) 2612 { 2613 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4; 2614 u32 val = enable ? (abs_vfid | (1 << 6)) : 0; 2615 2616 REG_WR(bp, reg, val); 2617 } 2618 2619 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf) 2620 { 2621 int i; 2622 2623 for_each_vfq(vf, i) 2624 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid, 2625 vfq_qzone_id(vf, vfq_get(vf, i)), false); 2626 } 2627 2628 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf) 2629 { 2630 u32 val; 2631 2632 /* clear the VF configuration - pretend */ 2633 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 2634 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION); 2635 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN | 2636 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK); 2637 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); 2638 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 2639 } 2640 2641 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf) 2642 { 2643 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF), 2644 BNX2X_VF_MAX_QUEUES); 2645 } 2646 2647 static 2648 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf, 2649 struct vf_pf_resc_request *req_resc) 2650 { 2651 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf); 2652 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf); 2653 2654 return ((req_resc->num_rxqs <= rxq_cnt) && 2655 (req_resc->num_txqs <= txq_cnt) && 2656 (req_resc->num_sbs <= vf_sb_count(vf)) && 2657 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) && 2658 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf))); 2659 } 2660 2661 /* CORE VF API */ 2662 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf, 2663 struct vf_pf_resc_request *resc) 2664 { 2665 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) * 2666 BNX2X_CIDS_PER_VF; 2667 2668 union cdu_context *base_cxt = (union cdu_context *) 2669 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr + 2670 (base_vf_cid & (ILT_PAGE_CIDS-1)); 2671 int i; 2672 2673 /* if state is 'acquired' the VF was not released or FLR'd, in 2674 * this case the returned resources match the acquired already 2675 * acquired resources. Verify that the requested numbers do 2676 * not exceed the already acquired numbers. 2677 */ 2678 if (vf->state == VF_ACQUIRED) { 2679 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n", 2680 vf->abs_vfid); 2681 2682 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) { 2683 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n", 2684 vf->abs_vfid); 2685 return -EINVAL; 2686 } 2687 return 0; 2688 } 2689 2690 /* Otherwise vf state must be 'free' or 'reset' */ 2691 if (vf->state != VF_FREE && vf->state != VF_RESET) { 2692 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n", 2693 vf->abs_vfid, vf->state); 2694 return -EINVAL; 2695 } 2696 2697 /* static allocation: 2698 * the global maximum number are fixed per VF. fail the request if 2699 * requested number exceed these globals 2700 */ 2701 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) { 2702 DP(BNX2X_MSG_IOV, 2703 "cannot fulfill vf resource request. Placing maximal available values in response\n"); 2704 /* set the max resource in the vf */ 2705 return -ENOMEM; 2706 } 2707 2708 /* Set resources counters - 0 request means max available */ 2709 vf_sb_count(vf) = resc->num_sbs; 2710 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf); 2711 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf); 2712 if (resc->num_mac_filters) 2713 vf_mac_rules_cnt(vf) = resc->num_mac_filters; 2714 if (resc->num_vlan_filters) 2715 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters; 2716 2717 DP(BNX2X_MSG_IOV, 2718 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n", 2719 vf_sb_count(vf), vf_rxq_count(vf), 2720 vf_txq_count(vf), vf_mac_rules_cnt(vf), 2721 vf_vlan_rules_cnt(vf)); 2722 2723 /* Initialize the queues */ 2724 if (!vf->vfqs) { 2725 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n"); 2726 return -EINVAL; 2727 } 2728 2729 for_each_vfq(vf, i) { 2730 struct bnx2x_vf_queue *q = vfq_get(vf, i); 2731 2732 if (!q) { 2733 DP(BNX2X_MSG_IOV, "q number %d was not allocated\n", i); 2734 return -EINVAL; 2735 } 2736 2737 q->index = i; 2738 q->cxt = &((base_cxt + i)->eth); 2739 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i; 2740 2741 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n", 2742 vf->abs_vfid, i, q->index, q->cid, q->cxt); 2743 2744 /* init SP objects */ 2745 bnx2x_vfq_init(bp, vf, q); 2746 } 2747 vf->state = VF_ACQUIRED; 2748 return 0; 2749 } 2750 2751 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map) 2752 { 2753 struct bnx2x_func_init_params func_init = {0}; 2754 u16 flags = 0; 2755 int i; 2756 2757 /* the sb resources are initialized at this point, do the 2758 * FW/HW initializations 2759 */ 2760 for_each_vf_sb(vf, i) 2761 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true, 2762 vf_igu_sb(vf, i), vf_igu_sb(vf, i)); 2763 2764 /* Sanity checks */ 2765 if (vf->state != VF_ACQUIRED) { 2766 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n", 2767 vf->abs_vfid, vf->state); 2768 return -EINVAL; 2769 } 2770 /* FLR cleanup epilogue */ 2771 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid)) 2772 return -EBUSY; 2773 2774 /* reset IGU VF statistics: MSIX */ 2775 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0); 2776 2777 /* vf init */ 2778 if (vf->cfg_flags & VF_CFG_STATS) 2779 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ); 2780 2781 if (vf->cfg_flags & VF_CFG_TPA) 2782 flags |= FUNC_FLG_TPA; 2783 2784 if (is_vf_multi(vf)) 2785 flags |= FUNC_FLG_RSS; 2786 2787 /* function setup */ 2788 func_init.func_flgs = flags; 2789 func_init.pf_id = BP_FUNC(bp); 2790 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid); 2791 func_init.fw_stat_map = vf->fw_stat_map; 2792 func_init.spq_map = vf->spq_map; 2793 func_init.spq_prod = 0; 2794 bnx2x_func_init(bp, &func_init); 2795 2796 /* Enable the vf */ 2797 bnx2x_vf_enable_access(bp, vf->abs_vfid); 2798 bnx2x_vf_enable_traffic(bp, vf); 2799 2800 /* queue protection table */ 2801 for_each_vfq(vf, i) 2802 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid, 2803 vfq_qzone_id(vf, vfq_get(vf, i)), true); 2804 2805 vf->state = VF_ENABLED; 2806 2807 /* update vf bulletin board */ 2808 bnx2x_post_vf_bulletin(bp, vf->index); 2809 2810 return 0; 2811 } 2812 2813 /* VFOP close (teardown the queues, delete mcasts and close HW) */ 2814 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf) 2815 { 2816 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 2817 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx; 2818 enum bnx2x_vfop_close_state state = vfop->state; 2819 struct bnx2x_vfop_cmd cmd = { 2820 .done = bnx2x_vfop_close, 2821 .block = false, 2822 }; 2823 2824 if (vfop->rc < 0) 2825 goto op_err; 2826 2827 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 2828 2829 switch (state) { 2830 case BNX2X_VFOP_CLOSE_QUEUES: 2831 2832 if (++(qx->qid) < vf_rxq_count(vf)) { 2833 vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid); 2834 if (vfop->rc) 2835 goto op_err; 2836 return; 2837 } 2838 2839 /* remove multicasts */ 2840 vfop->state = BNX2X_VFOP_CLOSE_HW; 2841 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false); 2842 if (vfop->rc) 2843 goto op_err; 2844 return; 2845 2846 case BNX2X_VFOP_CLOSE_HW: 2847 2848 /* disable the interrupts */ 2849 DP(BNX2X_MSG_IOV, "disabling igu\n"); 2850 bnx2x_vf_igu_disable(bp, vf); 2851 2852 /* disable the VF */ 2853 DP(BNX2X_MSG_IOV, "clearing qtbl\n"); 2854 bnx2x_vf_clr_qtbl(bp, vf); 2855 2856 goto op_done; 2857 default: 2858 bnx2x_vfop_default(state); 2859 } 2860 op_err: 2861 BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc); 2862 op_done: 2863 vf->state = VF_ACQUIRED; 2864 DP(BNX2X_MSG_IOV, "set state to acquired\n"); 2865 bnx2x_vfop_end(bp, vf, vfop); 2866 } 2867 2868 int bnx2x_vfop_close_cmd(struct bnx2x *bp, 2869 struct bnx2x_virtf *vf, 2870 struct bnx2x_vfop_cmd *cmd) 2871 { 2872 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 2873 if (vfop) { 2874 vfop->args.qx.qid = -1; /* loop */ 2875 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES, 2876 bnx2x_vfop_close, cmd->done); 2877 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close, 2878 cmd->block); 2879 } 2880 return -ENOMEM; 2881 } 2882 2883 /* VF release can be called either: 1. the VF was acquired but 2884 * not enabled 2. the vf was enabled or in the process of being 2885 * enabled 2886 */ 2887 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf) 2888 { 2889 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 2890 struct bnx2x_vfop_cmd cmd = { 2891 .done = bnx2x_vfop_release, 2892 .block = false, 2893 }; 2894 2895 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc); 2896 2897 if (vfop->rc < 0) 2898 goto op_err; 2899 2900 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid, 2901 vf->state == VF_FREE ? "Free" : 2902 vf->state == VF_ACQUIRED ? "Acquired" : 2903 vf->state == VF_ENABLED ? "Enabled" : 2904 vf->state == VF_RESET ? "Reset" : 2905 "Unknown"); 2906 2907 switch (vf->state) { 2908 case VF_ENABLED: 2909 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd); 2910 if (vfop->rc) 2911 goto op_err; 2912 return; 2913 2914 case VF_ACQUIRED: 2915 DP(BNX2X_MSG_IOV, "about to free resources\n"); 2916 bnx2x_vf_free_resc(bp, vf); 2917 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc); 2918 goto op_done; 2919 2920 case VF_FREE: 2921 case VF_RESET: 2922 /* do nothing */ 2923 goto op_done; 2924 default: 2925 bnx2x_vfop_default(vf->state); 2926 } 2927 op_err: 2928 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc); 2929 op_done: 2930 bnx2x_vfop_end(bp, vf, vfop); 2931 } 2932 2933 int bnx2x_vfop_release_cmd(struct bnx2x *bp, 2934 struct bnx2x_virtf *vf, 2935 struct bnx2x_vfop_cmd *cmd) 2936 { 2937 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 2938 if (vfop) { 2939 bnx2x_vfop_opset(-1, /* use vf->state */ 2940 bnx2x_vfop_release, cmd->done); 2941 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release, 2942 cmd->block); 2943 } 2944 return -ENOMEM; 2945 } 2946 2947 /* VF release ~ VF close + VF release-resources 2948 * Release is the ultimate SW shutdown and is called whenever an 2949 * irrecoverable error is encountered. 2950 */ 2951 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block) 2952 { 2953 struct bnx2x_vfop_cmd cmd = { 2954 .done = NULL, 2955 .block = block, 2956 }; 2957 int rc; 2958 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF); 2959 2960 rc = bnx2x_vfop_release_cmd(bp, vf, &cmd); 2961 if (rc) 2962 WARN(rc, 2963 "VF[%d] Failed to allocate resources for release op- rc=%d\n", 2964 vf->abs_vfid, rc); 2965 } 2966 2967 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp, 2968 struct bnx2x_virtf *vf, u32 *sbdf) 2969 { 2970 *sbdf = vf->devfn | (vf->bus << 8); 2971 } 2972 2973 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf, 2974 struct bnx2x_vf_bar_info *bar_info) 2975 { 2976 int n; 2977 2978 bar_info->nr_bars = bp->vfdb->sriov.nres; 2979 for (n = 0; n < bar_info->nr_bars; n++) 2980 bar_info->bars[n] = vf->bars[n]; 2981 } 2982 2983 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf, 2984 enum channel_tlvs tlv) 2985 { 2986 /* lock the channel */ 2987 mutex_lock(&vf->op_mutex); 2988 2989 /* record the locking op */ 2990 vf->op_current = tlv; 2991 2992 /* log the lock */ 2993 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n", 2994 vf->abs_vfid, tlv); 2995 } 2996 2997 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf, 2998 enum channel_tlvs expected_tlv) 2999 { 3000 WARN(expected_tlv != vf->op_current, 3001 "lock mismatch: expected %d found %d", expected_tlv, 3002 vf->op_current); 3003 3004 /* lock the channel */ 3005 mutex_unlock(&vf->op_mutex); 3006 3007 /* log the unlock */ 3008 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n", 3009 vf->abs_vfid, vf->op_current); 3010 3011 /* record the locking op */ 3012 vf->op_current = CHANNEL_TLV_NONE; 3013 } 3014 3015 void bnx2x_enable_sriov(struct bnx2x *bp) 3016 { 3017 int rc = 0; 3018 3019 /* disbale sriov in case it is still enabled */ 3020 pci_disable_sriov(bp->pdev); 3021 DP(BNX2X_MSG_IOV, "sriov disabled\n"); 3022 3023 /* enable sriov */ 3024 DP(BNX2X_MSG_IOV, "vf num (%d)\n", (bp->vfdb->sriov.nr_virtfn)); 3025 rc = pci_enable_sriov(bp->pdev, (bp->vfdb->sriov.nr_virtfn)); 3026 if (rc) 3027 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc); 3028 else 3029 DP(BNX2X_MSG_IOV, "sriov enabled\n"); 3030 } 3031 3032 /* New mac for VF. Consider these cases: 3033 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and 3034 * supply at acquire. 3035 * 2. VF has already been acquired but has not yet initialized - store in local 3036 * bulletin board. mac will be posted on VF bulletin board after VF init. VF 3037 * will configure this mac when it is ready. 3038 * 3. VF has already initialized but has not yet setup a queue - post the new 3039 * mac on VF's bulletin board right now. VF will configure this mac when it 3040 * is ready. 3041 * 4. VF has already set a queue - delete any macs already configured for this 3042 * queue and manually config the new mac. 3043 * In any event, once this function has been called refuse any attempts by the 3044 * VF to configure any mac for itself except for this mac. In case of a race 3045 * where the VF fails to see the new post on its bulletin board before sending a 3046 * mac configuration request, the PF will simply fail the request and VF can try 3047 * again after consulting its bulletin board 3048 */ 3049 int bnx2x_set_vf_mac(struct net_device *dev, int queue, u8 *mac) 3050 { 3051 struct bnx2x *bp = netdev_priv(dev); 3052 int rc, q_logical_state, vfidx = queue; 3053 struct bnx2x_virtf *vf = BP_VF(bp, vfidx); 3054 struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx); 3055 3056 /* if SRIOV is disabled there is nothing to do (and somewhere, someone 3057 * has erred). 3058 */ 3059 if (!IS_SRIOV(bp)) { 3060 BNX2X_ERR("bnx2x_set_vf_mac called though sriov is disabled\n"); 3061 return -EINVAL; 3062 } 3063 3064 if (!is_valid_ether_addr(mac)) { 3065 BNX2X_ERR("mac address invalid\n"); 3066 return -EINVAL; 3067 } 3068 3069 /* update PF's copy of the VF's bulletin. will no longer accept mac 3070 * configuration requests from vf unless match this mac 3071 */ 3072 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID; 3073 memcpy(bulletin->mac, mac, ETH_ALEN); 3074 3075 /* Post update on VF's bulletin board */ 3076 rc = bnx2x_post_vf_bulletin(bp, vfidx); 3077 if (rc) { 3078 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx); 3079 return rc; 3080 } 3081 3082 /* is vf initialized and queue set up? */ 3083 q_logical_state = 3084 bnx2x_get_q_logical_state(bp, &bnx2x_vfq(vf, 0, sp_obj)); 3085 if (vf->state == VF_ENABLED && 3086 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) { 3087 /* configure the mac in device on this vf's queue */ 3088 unsigned long flags = 0; 3089 struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj); 3090 3091 /* must lock vfpf channel to protect against vf flows */ 3092 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); 3093 3094 /* remove existing eth macs */ 3095 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true); 3096 if (rc) { 3097 BNX2X_ERR("failed to delete eth macs\n"); 3098 return -EINVAL; 3099 } 3100 3101 /* remove existing uc list macs */ 3102 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true); 3103 if (rc) { 3104 BNX2X_ERR("failed to delete uc_list macs\n"); 3105 return -EINVAL; 3106 } 3107 3108 /* configure the new mac to device */ 3109 __set_bit(RAMROD_COMP_WAIT, &flags); 3110 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true, 3111 BNX2X_ETH_MAC, &flags); 3112 3113 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); 3114 } 3115 3116 return rc; 3117 } 3118 3119 /* crc is the first field in the bulletin board. compute the crc over the 3120 * entire bulletin board excluding the crc field itself 3121 */ 3122 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp, 3123 struct pf_vf_bulletin_content *bulletin) 3124 { 3125 return crc32(BULLETIN_CRC_SEED, 3126 ((u8 *)bulletin) + sizeof(bulletin->crc), 3127 bulletin->length - sizeof(bulletin->crc)); 3128 } 3129 3130 /* Check for new posts on the bulletin board */ 3131 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp) 3132 { 3133 struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content; 3134 int attempts; 3135 3136 /* bulletin board hasn't changed since last sample */ 3137 if (bp->old_bulletin.version == bulletin.version) 3138 return PFVF_BULLETIN_UNCHANGED; 3139 3140 /* validate crc of new bulletin board */ 3141 if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) { 3142 /* sampling structure in mid post may result with corrupted data 3143 * validate crc to ensure coherency. 3144 */ 3145 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) { 3146 bulletin = bp->pf2vf_bulletin->content; 3147 if (bulletin.crc == bnx2x_crc_vf_bulletin(bp, 3148 &bulletin)) 3149 break; 3150 BNX2X_ERR("bad crc on bulletin board. contained %x computed %x\n", 3151 bulletin.crc, 3152 bnx2x_crc_vf_bulletin(bp, &bulletin)); 3153 } 3154 if (attempts >= BULLETIN_ATTEMPTS) { 3155 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n", 3156 attempts); 3157 return PFVF_BULLETIN_CRC_ERR; 3158 } 3159 } 3160 3161 /* the mac address in bulletin board is valid and is new */ 3162 if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID && 3163 memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) { 3164 /* update new mac to net device */ 3165 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN); 3166 } 3167 3168 /* copy new bulletin board to bp */ 3169 bp->old_bulletin = bulletin; 3170 3171 return PFVF_BULLETIN_UPDATED; 3172 } 3173 3174 void bnx2x_vf_map_doorbells(struct bnx2x *bp) 3175 { 3176 /* vf doorbells are embedded within the regview */ 3177 bp->doorbells = bp->regview + PXP_VF_ADDR_DB_START; 3178 } 3179 3180 int bnx2x_vf_pci_alloc(struct bnx2x *bp) 3181 { 3182 /* allocate vf2pf mailbox for vf to pf channel */ 3183 BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping, 3184 sizeof(struct bnx2x_vf_mbx_msg)); 3185 3186 /* allocate pf 2 vf bulletin board */ 3187 BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping, 3188 sizeof(union pf_vf_bulletin)); 3189 3190 return 0; 3191 3192 alloc_mem_err: 3193 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping, 3194 sizeof(struct bnx2x_vf_mbx_msg)); 3195 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping, 3196 sizeof(union pf_vf_bulletin)); 3197 return -ENOMEM; 3198 } 3199