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 "bnx2x_sp.h" 24 #include <linux/crc32.h> 25 #include <linux/if_vlan.h> 26 27 /* General service functions */ 28 static void storm_memset_vf_to_pf(struct bnx2x *bp, u16 abs_fid, 29 u16 pf_id) 30 { 31 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_VF_TO_PF_OFFSET(abs_fid), 32 pf_id); 33 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_VF_TO_PF_OFFSET(abs_fid), 34 pf_id); 35 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_VF_TO_PF_OFFSET(abs_fid), 36 pf_id); 37 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_VF_TO_PF_OFFSET(abs_fid), 38 pf_id); 39 } 40 41 static void storm_memset_func_en(struct bnx2x *bp, u16 abs_fid, 42 u8 enable) 43 { 44 REG_WR8(bp, BAR_XSTRORM_INTMEM + XSTORM_FUNC_EN_OFFSET(abs_fid), 45 enable); 46 REG_WR8(bp, BAR_CSTRORM_INTMEM + CSTORM_FUNC_EN_OFFSET(abs_fid), 47 enable); 48 REG_WR8(bp, BAR_TSTRORM_INTMEM + TSTORM_FUNC_EN_OFFSET(abs_fid), 49 enable); 50 REG_WR8(bp, BAR_USTRORM_INTMEM + USTORM_FUNC_EN_OFFSET(abs_fid), 51 enable); 52 } 53 54 int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid) 55 { 56 int idx; 57 58 for_each_vf(bp, idx) 59 if (bnx2x_vf(bp, idx, abs_vfid) == abs_vfid) 60 break; 61 return idx; 62 } 63 64 static 65 struct bnx2x_virtf *bnx2x_vf_by_abs_fid(struct bnx2x *bp, u16 abs_vfid) 66 { 67 u16 idx = (u16)bnx2x_vf_idx_by_abs_fid(bp, abs_vfid); 68 return (idx < BNX2X_NR_VIRTFN(bp)) ? BP_VF(bp, idx) : NULL; 69 } 70 71 static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf, 72 u8 igu_sb_id, u8 segment, u16 index, u8 op, 73 u8 update) 74 { 75 /* acking a VF sb through the PF - use the GRC */ 76 u32 ctl; 77 u32 igu_addr_data = IGU_REG_COMMAND_REG_32LSB_DATA; 78 u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL; 79 u32 func_encode = vf->abs_vfid; 80 u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + igu_sb_id; 81 struct igu_regular cmd_data = {0}; 82 83 cmd_data.sb_id_and_flags = 84 ((index << IGU_REGULAR_SB_INDEX_SHIFT) | 85 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | 86 (update << IGU_REGULAR_BUPDATE_SHIFT) | 87 (op << IGU_REGULAR_ENABLE_INT_SHIFT)); 88 89 ctl = addr_encode << IGU_CTRL_REG_ADDRESS_SHIFT | 90 func_encode << IGU_CTRL_REG_FID_SHIFT | 91 IGU_CTRL_CMD_TYPE_WR << IGU_CTRL_REG_TYPE_SHIFT; 92 93 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", 94 cmd_data.sb_id_and_flags, igu_addr_data); 95 REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags); 96 mmiowb(); 97 barrier(); 98 99 DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n", 100 ctl, igu_addr_ctl); 101 REG_WR(bp, igu_addr_ctl, ctl); 102 mmiowb(); 103 barrier(); 104 } 105 /* VFOP - VF slow-path operation support */ 106 107 #define BNX2X_VFOP_FILTER_ADD_CNT_MAX 0x10000 108 109 /* VFOP operations states */ 110 enum bnx2x_vfop_qctor_state { 111 BNX2X_VFOP_QCTOR_INIT, 112 BNX2X_VFOP_QCTOR_SETUP, 113 BNX2X_VFOP_QCTOR_INT_EN 114 }; 115 116 enum bnx2x_vfop_qdtor_state { 117 BNX2X_VFOP_QDTOR_HALT, 118 BNX2X_VFOP_QDTOR_TERMINATE, 119 BNX2X_VFOP_QDTOR_CFCDEL, 120 BNX2X_VFOP_QDTOR_DONE 121 }; 122 123 enum bnx2x_vfop_vlan_mac_state { 124 BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE, 125 BNX2X_VFOP_VLAN_MAC_CLEAR, 126 BNX2X_VFOP_VLAN_MAC_CHK_DONE, 127 BNX2X_VFOP_MAC_CONFIG_LIST, 128 BNX2X_VFOP_VLAN_CONFIG_LIST, 129 BNX2X_VFOP_VLAN_CONFIG_LIST_0 130 }; 131 132 enum bnx2x_vfop_qsetup_state { 133 BNX2X_VFOP_QSETUP_CTOR, 134 BNX2X_VFOP_QSETUP_VLAN0, 135 BNX2X_VFOP_QSETUP_DONE 136 }; 137 138 enum bnx2x_vfop_mcast_state { 139 BNX2X_VFOP_MCAST_DEL, 140 BNX2X_VFOP_MCAST_ADD, 141 BNX2X_VFOP_MCAST_CHK_DONE 142 }; 143 enum bnx2x_vfop_qflr_state { 144 BNX2X_VFOP_QFLR_CLR_VLAN, 145 BNX2X_VFOP_QFLR_CLR_MAC, 146 BNX2X_VFOP_QFLR_TERMINATE, 147 BNX2X_VFOP_QFLR_DONE 148 }; 149 150 enum bnx2x_vfop_flr_state { 151 BNX2X_VFOP_FLR_QUEUES, 152 BNX2X_VFOP_FLR_HW 153 }; 154 155 enum bnx2x_vfop_close_state { 156 BNX2X_VFOP_CLOSE_QUEUES, 157 BNX2X_VFOP_CLOSE_HW 158 }; 159 160 enum bnx2x_vfop_rxmode_state { 161 BNX2X_VFOP_RXMODE_CONFIG, 162 BNX2X_VFOP_RXMODE_DONE 163 }; 164 165 enum bnx2x_vfop_qteardown_state { 166 BNX2X_VFOP_QTEARDOWN_RXMODE, 167 BNX2X_VFOP_QTEARDOWN_CLR_VLAN, 168 BNX2X_VFOP_QTEARDOWN_CLR_MAC, 169 BNX2X_VFOP_QTEARDOWN_QDTOR, 170 BNX2X_VFOP_QTEARDOWN_DONE 171 }; 172 173 enum bnx2x_vfop_rss_state { 174 BNX2X_VFOP_RSS_CONFIG, 175 BNX2X_VFOP_RSS_DONE 176 }; 177 178 #define bnx2x_vfop_reset_wq(vf) atomic_set(&vf->op_in_progress, 0) 179 180 void bnx2x_vfop_qctor_dump_tx(struct bnx2x *bp, struct bnx2x_virtf *vf, 181 struct bnx2x_queue_init_params *init_params, 182 struct bnx2x_queue_setup_params *setup_params, 183 u16 q_idx, u16 sb_idx) 184 { 185 DP(BNX2X_MSG_IOV, 186 "VF[%d] Q_SETUP: txq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, flags=0x%lx, traffic-type=%d", 187 vf->abs_vfid, 188 q_idx, 189 sb_idx, 190 init_params->tx.sb_cq_index, 191 init_params->tx.hc_rate, 192 setup_params->flags, 193 setup_params->txq_params.traffic_type); 194 } 195 196 void bnx2x_vfop_qctor_dump_rx(struct bnx2x *bp, struct bnx2x_virtf *vf, 197 struct bnx2x_queue_init_params *init_params, 198 struct bnx2x_queue_setup_params *setup_params, 199 u16 q_idx, u16 sb_idx) 200 { 201 struct bnx2x_rxq_setup_params *rxq_params = &setup_params->rxq_params; 202 203 DP(BNX2X_MSG_IOV, "VF[%d] Q_SETUP: rxq[%d]-- vfsb=%d, sb-index=%d, hc-rate=%d, mtu=%d, buf-size=%d\n" 204 "sge-size=%d, max_sge_pkt=%d, tpa-agg-size=%d, flags=0x%lx, drop-flags=0x%x, cache-log=%d\n", 205 vf->abs_vfid, 206 q_idx, 207 sb_idx, 208 init_params->rx.sb_cq_index, 209 init_params->rx.hc_rate, 210 setup_params->gen_params.mtu, 211 rxq_params->buf_sz, 212 rxq_params->sge_buf_sz, 213 rxq_params->max_sges_pkt, 214 rxq_params->tpa_agg_sz, 215 setup_params->flags, 216 rxq_params->drop_flags, 217 rxq_params->cache_line_log); 218 } 219 220 void bnx2x_vfop_qctor_prep(struct bnx2x *bp, 221 struct bnx2x_virtf *vf, 222 struct bnx2x_vf_queue *q, 223 struct bnx2x_vfop_qctor_params *p, 224 unsigned long q_type) 225 { 226 struct bnx2x_queue_init_params *init_p = &p->qstate.params.init; 227 struct bnx2x_queue_setup_params *setup_p = &p->prep_qsetup; 228 229 /* INIT */ 230 231 /* Enable host coalescing in the transition to INIT state */ 232 if (test_bit(BNX2X_Q_FLG_HC, &init_p->rx.flags)) 233 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->rx.flags); 234 235 if (test_bit(BNX2X_Q_FLG_HC, &init_p->tx.flags)) 236 __set_bit(BNX2X_Q_FLG_HC_EN, &init_p->tx.flags); 237 238 /* FW SB ID */ 239 init_p->rx.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 240 init_p->tx.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 241 242 /* context */ 243 init_p->cxts[0] = q->cxt; 244 245 /* SETUP */ 246 247 /* Setup-op general parameters */ 248 setup_p->gen_params.spcl_id = vf->sp_cl_id; 249 setup_p->gen_params.stat_id = vfq_stat_id(vf, q); 250 251 /* Setup-op pause params: 252 * Nothing to do, the pause thresholds are set by default to 0 which 253 * effectively turns off the feature for this queue. We don't want 254 * one queue (VF) to interfering with another queue (another VF) 255 */ 256 if (vf->cfg_flags & VF_CFG_FW_FC) 257 BNX2X_ERR("No support for pause to VFs (abs_vfid: %d)\n", 258 vf->abs_vfid); 259 /* Setup-op flags: 260 * collect statistics, zero statistics, local-switching, security, 261 * OV for Flex10, RSS and MCAST for leading 262 */ 263 if (test_bit(BNX2X_Q_FLG_STATS, &setup_p->flags)) 264 __set_bit(BNX2X_Q_FLG_ZERO_STATS, &setup_p->flags); 265 266 /* for VFs, enable tx switching, bd coherency, and mac address 267 * anti-spoofing 268 */ 269 __set_bit(BNX2X_Q_FLG_TX_SWITCH, &setup_p->flags); 270 __set_bit(BNX2X_Q_FLG_TX_SEC, &setup_p->flags); 271 __set_bit(BNX2X_Q_FLG_ANTI_SPOOF, &setup_p->flags); 272 273 /* Setup-op rx parameters */ 274 if (test_bit(BNX2X_Q_TYPE_HAS_RX, &q_type)) { 275 struct bnx2x_rxq_setup_params *rxq_p = &setup_p->rxq_params; 276 277 rxq_p->cl_qzone_id = vfq_qzone_id(vf, q); 278 rxq_p->fw_sb_id = vf_igu_sb(vf, q->sb_idx); 279 rxq_p->rss_engine_id = FW_VF_HANDLE(vf->abs_vfid); 280 281 if (test_bit(BNX2X_Q_FLG_TPA, &setup_p->flags)) 282 rxq_p->max_tpa_queues = BNX2X_VF_MAX_TPA_AGG_QUEUES; 283 } 284 285 /* Setup-op tx parameters */ 286 if (test_bit(BNX2X_Q_TYPE_HAS_TX, &q_type)) { 287 setup_p->txq_params.tss_leading_cl_id = vf->leading_rss; 288 setup_p->txq_params.fw_sb_id = vf_igu_sb(vf, q->sb_idx); 289 } 290 } 291 292 /* VFOP queue construction */ 293 static void bnx2x_vfop_qctor(struct bnx2x *bp, struct bnx2x_virtf *vf) 294 { 295 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 296 struct bnx2x_vfop_args_qctor *args = &vfop->args.qctor; 297 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate; 298 enum bnx2x_vfop_qctor_state state = vfop->state; 299 300 bnx2x_vfop_reset_wq(vf); 301 302 if (vfop->rc < 0) 303 goto op_err; 304 305 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 306 307 switch (state) { 308 case BNX2X_VFOP_QCTOR_INIT: 309 310 /* has this queue already been opened? */ 311 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) == 312 BNX2X_Q_LOGICAL_STATE_ACTIVE) { 313 DP(BNX2X_MSG_IOV, 314 "Entered qctor but queue was already up. Aborting gracefully\n"); 315 goto op_done; 316 } 317 318 /* next state */ 319 vfop->state = BNX2X_VFOP_QCTOR_SETUP; 320 321 q_params->cmd = BNX2X_Q_CMD_INIT; 322 vfop->rc = bnx2x_queue_state_change(bp, q_params); 323 324 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 325 326 case BNX2X_VFOP_QCTOR_SETUP: 327 /* next state */ 328 vfop->state = BNX2X_VFOP_QCTOR_INT_EN; 329 330 /* copy pre-prepared setup params to the queue-state params */ 331 vfop->op_p->qctor.qstate.params.setup = 332 vfop->op_p->qctor.prep_qsetup; 333 334 q_params->cmd = BNX2X_Q_CMD_SETUP; 335 vfop->rc = bnx2x_queue_state_change(bp, q_params); 336 337 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 338 339 case BNX2X_VFOP_QCTOR_INT_EN: 340 341 /* enable interrupts */ 342 bnx2x_vf_igu_ack_sb(bp, vf, vf_igu_sb(vf, args->sb_idx), 343 USTORM_ID, 0, IGU_INT_ENABLE, 0); 344 goto op_done; 345 default: 346 bnx2x_vfop_default(state); 347 } 348 op_err: 349 BNX2X_ERR("QCTOR[%d:%d] error: cmd %d, rc %d\n", 350 vf->abs_vfid, args->qid, q_params->cmd, vfop->rc); 351 op_done: 352 bnx2x_vfop_end(bp, vf, vfop); 353 op_pending: 354 return; 355 } 356 357 static int bnx2x_vfop_qctor_cmd(struct bnx2x *bp, 358 struct bnx2x_virtf *vf, 359 struct bnx2x_vfop_cmd *cmd, 360 int qid) 361 { 362 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 363 364 if (vfop) { 365 vf->op_params.qctor.qstate.q_obj = &bnx2x_vfq(vf, qid, sp_obj); 366 367 vfop->args.qctor.qid = qid; 368 vfop->args.qctor.sb_idx = bnx2x_vfq(vf, qid, sb_idx); 369 370 bnx2x_vfop_opset(BNX2X_VFOP_QCTOR_INIT, 371 bnx2x_vfop_qctor, cmd->done); 372 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qctor, 373 cmd->block); 374 } 375 return -ENOMEM; 376 } 377 378 /* VFOP queue destruction */ 379 static void bnx2x_vfop_qdtor(struct bnx2x *bp, struct bnx2x_virtf *vf) 380 { 381 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 382 struct bnx2x_vfop_args_qdtor *qdtor = &vfop->args.qdtor; 383 struct bnx2x_queue_state_params *q_params = &vfop->op_p->qctor.qstate; 384 enum bnx2x_vfop_qdtor_state state = vfop->state; 385 386 bnx2x_vfop_reset_wq(vf); 387 388 if (vfop->rc < 0) 389 goto op_err; 390 391 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 392 393 switch (state) { 394 case BNX2X_VFOP_QDTOR_HALT: 395 396 /* has this queue already been stopped? */ 397 if (bnx2x_get_q_logical_state(bp, q_params->q_obj) == 398 BNX2X_Q_LOGICAL_STATE_STOPPED) { 399 DP(BNX2X_MSG_IOV, 400 "Entered qdtor but queue was already stopped. Aborting gracefully\n"); 401 402 /* next state */ 403 vfop->state = BNX2X_VFOP_QDTOR_DONE; 404 405 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 406 } 407 408 /* next state */ 409 vfop->state = BNX2X_VFOP_QDTOR_TERMINATE; 410 411 q_params->cmd = BNX2X_Q_CMD_HALT; 412 vfop->rc = bnx2x_queue_state_change(bp, q_params); 413 414 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 415 416 case BNX2X_VFOP_QDTOR_TERMINATE: 417 /* next state */ 418 vfop->state = BNX2X_VFOP_QDTOR_CFCDEL; 419 420 q_params->cmd = BNX2X_Q_CMD_TERMINATE; 421 vfop->rc = bnx2x_queue_state_change(bp, q_params); 422 423 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 424 425 case BNX2X_VFOP_QDTOR_CFCDEL: 426 /* next state */ 427 vfop->state = BNX2X_VFOP_QDTOR_DONE; 428 429 q_params->cmd = BNX2X_Q_CMD_CFC_DEL; 430 vfop->rc = bnx2x_queue_state_change(bp, q_params); 431 432 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 433 op_err: 434 BNX2X_ERR("QDTOR[%d:%d] error: cmd %d, rc %d\n", 435 vf->abs_vfid, qdtor->qid, q_params->cmd, vfop->rc); 436 op_done: 437 case BNX2X_VFOP_QDTOR_DONE: 438 /* invalidate the context */ 439 if (qdtor->cxt) { 440 qdtor->cxt->ustorm_ag_context.cdu_usage = 0; 441 qdtor->cxt->xstorm_ag_context.cdu_reserved = 0; 442 } 443 bnx2x_vfop_end(bp, vf, vfop); 444 return; 445 default: 446 bnx2x_vfop_default(state); 447 } 448 op_pending: 449 return; 450 } 451 452 static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp, 453 struct bnx2x_virtf *vf, 454 struct bnx2x_vfop_cmd *cmd, 455 int qid) 456 { 457 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 458 459 if (vfop) { 460 struct bnx2x_queue_state_params *qstate = 461 &vf->op_params.qctor.qstate; 462 463 memset(qstate, 0, sizeof(*qstate)); 464 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj); 465 466 vfop->args.qdtor.qid = qid; 467 vfop->args.qdtor.cxt = bnx2x_vfq(vf, qid, cxt); 468 469 bnx2x_vfop_opset(BNX2X_VFOP_QDTOR_HALT, 470 bnx2x_vfop_qdtor, cmd->done); 471 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor, 472 cmd->block); 473 } 474 DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n", 475 vf->abs_vfid, vfop->rc); 476 return -ENOMEM; 477 } 478 479 static void 480 bnx2x_vf_set_igu_info(struct bnx2x *bp, u8 igu_sb_id, u8 abs_vfid) 481 { 482 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 483 if (vf) { 484 /* the first igu entry belonging to VFs of this PF */ 485 if (!BP_VFDB(bp)->first_vf_igu_entry) 486 BP_VFDB(bp)->first_vf_igu_entry = igu_sb_id; 487 488 /* the first igu entry belonging to this VF */ 489 if (!vf_sb_count(vf)) 490 vf->igu_base_id = igu_sb_id; 491 492 ++vf_sb_count(vf); 493 ++vf->sb_count; 494 } 495 BP_VFDB(bp)->vf_sbs_pool++; 496 } 497 498 /* VFOP MAC/VLAN helpers */ 499 static inline void bnx2x_vfop_credit(struct bnx2x *bp, 500 struct bnx2x_vfop *vfop, 501 struct bnx2x_vlan_mac_obj *obj) 502 { 503 struct bnx2x_vfop_args_filters *args = &vfop->args.filters; 504 505 /* update credit only if there is no error 506 * and a valid credit counter 507 */ 508 if (!vfop->rc && args->credit) { 509 struct list_head *pos; 510 int read_lock; 511 int cnt = 0; 512 513 read_lock = bnx2x_vlan_mac_h_read_lock(bp, obj); 514 if (read_lock) 515 DP(BNX2X_MSG_SP, "Failed to take vlan mac read head; continuing anyway\n"); 516 517 list_for_each(pos, &obj->head) 518 cnt++; 519 520 if (!read_lock) 521 bnx2x_vlan_mac_h_read_unlock(bp, obj); 522 523 atomic_set(args->credit, cnt); 524 } 525 } 526 527 static int bnx2x_vfop_set_user_req(struct bnx2x *bp, 528 struct bnx2x_vfop_filter *pos, 529 struct bnx2x_vlan_mac_data *user_req) 530 { 531 user_req->cmd = pos->add ? BNX2X_VLAN_MAC_ADD : 532 BNX2X_VLAN_MAC_DEL; 533 534 switch (pos->type) { 535 case BNX2X_VFOP_FILTER_MAC: 536 memcpy(user_req->u.mac.mac, pos->mac, ETH_ALEN); 537 break; 538 case BNX2X_VFOP_FILTER_VLAN: 539 user_req->u.vlan.vlan = pos->vid; 540 break; 541 default: 542 BNX2X_ERR("Invalid filter type, skipping\n"); 543 return 1; 544 } 545 return 0; 546 } 547 548 static int bnx2x_vfop_config_list(struct bnx2x *bp, 549 struct bnx2x_vfop_filters *filters, 550 struct bnx2x_vlan_mac_ramrod_params *vlan_mac) 551 { 552 struct bnx2x_vfop_filter *pos, *tmp; 553 struct list_head rollback_list, *filters_list = &filters->head; 554 struct bnx2x_vlan_mac_data *user_req = &vlan_mac->user_req; 555 int rc = 0, cnt = 0; 556 557 INIT_LIST_HEAD(&rollback_list); 558 559 list_for_each_entry_safe(pos, tmp, filters_list, link) { 560 if (bnx2x_vfop_set_user_req(bp, pos, user_req)) 561 continue; 562 563 rc = bnx2x_config_vlan_mac(bp, vlan_mac); 564 if (rc >= 0) { 565 cnt += pos->add ? 1 : -1; 566 list_move(&pos->link, &rollback_list); 567 rc = 0; 568 } else if (rc == -EEXIST) { 569 rc = 0; 570 } else { 571 BNX2X_ERR("Failed to add a new vlan_mac command\n"); 572 break; 573 } 574 } 575 576 /* rollback if error or too many rules added */ 577 if (rc || cnt > filters->add_cnt) { 578 BNX2X_ERR("error or too many rules added. Performing rollback\n"); 579 list_for_each_entry_safe(pos, tmp, &rollback_list, link) { 580 pos->add = !pos->add; /* reverse op */ 581 bnx2x_vfop_set_user_req(bp, pos, user_req); 582 bnx2x_config_vlan_mac(bp, vlan_mac); 583 list_del(&pos->link); 584 } 585 cnt = 0; 586 if (!rc) 587 rc = -EINVAL; 588 } 589 filters->add_cnt = cnt; 590 return rc; 591 } 592 593 /* VFOP set VLAN/MAC */ 594 static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf) 595 { 596 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 597 struct bnx2x_vlan_mac_ramrod_params *vlan_mac = &vfop->op_p->vlan_mac; 598 struct bnx2x_vlan_mac_obj *obj = vlan_mac->vlan_mac_obj; 599 struct bnx2x_vfop_filters *filters = vfop->args.filters.multi_filter; 600 601 enum bnx2x_vfop_vlan_mac_state state = vfop->state; 602 603 if (vfop->rc < 0) 604 goto op_err; 605 606 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 607 608 bnx2x_vfop_reset_wq(vf); 609 610 switch (state) { 611 case BNX2X_VFOP_VLAN_MAC_CLEAR: 612 /* next state */ 613 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 614 615 /* do delete */ 616 vfop->rc = obj->delete_all(bp, obj, 617 &vlan_mac->user_req.vlan_mac_flags, 618 &vlan_mac->ramrod_flags); 619 620 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 621 622 case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE: 623 /* next state */ 624 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 625 626 /* do config */ 627 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac); 628 if (vfop->rc == -EEXIST) 629 vfop->rc = 0; 630 631 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 632 633 case BNX2X_VFOP_VLAN_MAC_CHK_DONE: 634 vfop->rc = !!obj->raw.check_pending(&obj->raw); 635 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 636 637 case BNX2X_VFOP_MAC_CONFIG_LIST: 638 /* next state */ 639 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 640 641 /* do list config */ 642 vfop->rc = bnx2x_vfop_config_list(bp, filters, vlan_mac); 643 if (vfop->rc) 644 goto op_err; 645 646 set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags); 647 vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac); 648 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 649 650 case BNX2X_VFOP_VLAN_CONFIG_LIST: 651 /* next state */ 652 vfop->state = BNX2X_VFOP_VLAN_MAC_CHK_DONE; 653 654 /* do list config */ 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_DONE); 661 662 default: 663 bnx2x_vfop_default(state); 664 } 665 op_err: 666 BNX2X_ERR("VLAN-MAC error: rc %d\n", vfop->rc); 667 op_done: 668 kfree(filters); 669 bnx2x_vfop_credit(bp, vfop, obj); 670 bnx2x_vfop_end(bp, vf, vfop); 671 op_pending: 672 return; 673 } 674 675 struct bnx2x_vfop_vlan_mac_flags { 676 bool drv_only; 677 bool dont_consume; 678 bool single_cmd; 679 bool add; 680 }; 681 682 static void 683 bnx2x_vfop_vlan_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod, 684 struct bnx2x_vfop_vlan_mac_flags *flags) 685 { 686 struct bnx2x_vlan_mac_data *ureq = &ramrod->user_req; 687 688 memset(ramrod, 0, sizeof(*ramrod)); 689 690 /* ramrod flags */ 691 if (flags->drv_only) 692 set_bit(RAMROD_DRV_CLR_ONLY, &ramrod->ramrod_flags); 693 if (flags->single_cmd) 694 set_bit(RAMROD_EXEC, &ramrod->ramrod_flags); 695 696 /* mac_vlan flags */ 697 if (flags->dont_consume) 698 set_bit(BNX2X_DONT_CONSUME_CAM_CREDIT, &ureq->vlan_mac_flags); 699 700 /* cmd */ 701 ureq->cmd = flags->add ? BNX2X_VLAN_MAC_ADD : BNX2X_VLAN_MAC_DEL; 702 } 703 704 static inline void 705 bnx2x_vfop_mac_prep_ramrod(struct bnx2x_vlan_mac_ramrod_params *ramrod, 706 struct bnx2x_vfop_vlan_mac_flags *flags) 707 { 708 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, flags); 709 set_bit(BNX2X_ETH_MAC, &ramrod->user_req.vlan_mac_flags); 710 } 711 712 static int bnx2x_vfop_mac_delall_cmd(struct bnx2x *bp, 713 struct bnx2x_virtf *vf, 714 struct bnx2x_vfop_cmd *cmd, 715 int qid, bool drv_only) 716 { 717 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 718 int rc; 719 720 if (vfop) { 721 struct bnx2x_vfop_args_filters filters = { 722 .multi_filter = NULL, /* single */ 723 .credit = NULL, /* consume credit */ 724 }; 725 struct bnx2x_vfop_vlan_mac_flags flags = { 726 .drv_only = drv_only, 727 .dont_consume = (filters.credit != NULL), 728 .single_cmd = true, 729 .add = false /* don't care */, 730 }; 731 struct bnx2x_vlan_mac_ramrod_params *ramrod = 732 &vf->op_params.vlan_mac; 733 734 /* set ramrod params */ 735 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags); 736 737 /* set object */ 738 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj)); 739 if (rc) 740 return rc; 741 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); 742 743 /* set extra args */ 744 vfop->args.filters = filters; 745 746 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR, 747 bnx2x_vfop_vlan_mac, cmd->done); 748 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 749 cmd->block); 750 } 751 return -ENOMEM; 752 } 753 754 int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp, 755 struct bnx2x_virtf *vf, 756 struct bnx2x_vfop_cmd *cmd, 757 struct bnx2x_vfop_filters *macs, 758 int qid, bool drv_only) 759 { 760 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 761 int rc; 762 763 if (vfop) { 764 struct bnx2x_vfop_args_filters filters = { 765 .multi_filter = macs, 766 .credit = NULL, /* consume credit */ 767 }; 768 struct bnx2x_vfop_vlan_mac_flags flags = { 769 .drv_only = drv_only, 770 .dont_consume = (filters.credit != NULL), 771 .single_cmd = false, 772 .add = false, /* don't care since only the items in the 773 * filters list affect the sp operation, 774 * not the list itself 775 */ 776 }; 777 struct bnx2x_vlan_mac_ramrod_params *ramrod = 778 &vf->op_params.vlan_mac; 779 780 /* set ramrod params */ 781 bnx2x_vfop_mac_prep_ramrod(ramrod, &flags); 782 783 /* set object */ 784 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj)); 785 if (rc) 786 return rc; 787 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, mac_obj); 788 789 /* set extra args */ 790 filters.multi_filter->add_cnt = BNX2X_VFOP_FILTER_ADD_CNT_MAX; 791 vfop->args.filters = filters; 792 793 bnx2x_vfop_opset(BNX2X_VFOP_MAC_CONFIG_LIST, 794 bnx2x_vfop_vlan_mac, cmd->done); 795 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 796 cmd->block); 797 } 798 return -ENOMEM; 799 } 800 801 int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp, 802 struct bnx2x_virtf *vf, 803 struct bnx2x_vfop_cmd *cmd, 804 int qid, u16 vid, bool add) 805 { 806 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 807 int rc; 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 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)); 829 if (rc) 830 return rc; 831 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 832 833 /* set extra args */ 834 vfop->args.filters = filters; 835 836 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE, 837 bnx2x_vfop_vlan_mac, cmd->done); 838 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 839 cmd->block); 840 } 841 return -ENOMEM; 842 } 843 844 static int bnx2x_vfop_vlan_delall_cmd(struct bnx2x *bp, 845 struct bnx2x_virtf *vf, 846 struct bnx2x_vfop_cmd *cmd, 847 int qid, bool drv_only) 848 { 849 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 850 int rc; 851 852 if (vfop) { 853 struct bnx2x_vfop_args_filters filters = { 854 .multi_filter = NULL, /* single command */ 855 .credit = &bnx2x_vfq(vf, qid, vlan_count), 856 }; 857 struct bnx2x_vfop_vlan_mac_flags flags = { 858 .drv_only = drv_only, 859 .dont_consume = (filters.credit != NULL), 860 .single_cmd = true, 861 .add = false, /* don't care */ 862 }; 863 struct bnx2x_vlan_mac_ramrod_params *ramrod = 864 &vf->op_params.vlan_mac; 865 866 /* set ramrod params */ 867 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags); 868 869 /* set object */ 870 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)); 871 if (rc) 872 return rc; 873 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 874 875 /* set extra args */ 876 vfop->args.filters = filters; 877 878 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_MAC_CLEAR, 879 bnx2x_vfop_vlan_mac, cmd->done); 880 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 881 cmd->block); 882 } 883 return -ENOMEM; 884 } 885 886 int bnx2x_vfop_vlan_list_cmd(struct bnx2x *bp, 887 struct bnx2x_virtf *vf, 888 struct bnx2x_vfop_cmd *cmd, 889 struct bnx2x_vfop_filters *vlans, 890 int qid, bool drv_only) 891 { 892 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 893 int rc; 894 895 if (vfop) { 896 struct bnx2x_vfop_args_filters filters = { 897 .multi_filter = vlans, 898 .credit = &bnx2x_vfq(vf, qid, vlan_count), 899 }; 900 struct bnx2x_vfop_vlan_mac_flags flags = { 901 .drv_only = drv_only, 902 .dont_consume = (filters.credit != NULL), 903 .single_cmd = false, 904 .add = false, /* don't care */ 905 }; 906 struct bnx2x_vlan_mac_ramrod_params *ramrod = 907 &vf->op_params.vlan_mac; 908 909 /* set ramrod params */ 910 bnx2x_vfop_vlan_mac_prep_ramrod(ramrod, &flags); 911 912 /* set object */ 913 rc = validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)); 914 if (rc) 915 return rc; 916 ramrod->vlan_mac_obj = &bnx2x_vfq(vf, qid, vlan_obj); 917 918 /* set extra args */ 919 filters.multi_filter->add_cnt = vf_vlan_rules_cnt(vf) - 920 atomic_read(filters.credit); 921 922 vfop->args.filters = filters; 923 924 bnx2x_vfop_opset(BNX2X_VFOP_VLAN_CONFIG_LIST, 925 bnx2x_vfop_vlan_mac, cmd->done); 926 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_vlan_mac, 927 cmd->block); 928 } 929 return -ENOMEM; 930 } 931 932 /* VFOP queue setup (queue constructor + set vlan 0) */ 933 static void bnx2x_vfop_qsetup(struct bnx2x *bp, struct bnx2x_virtf *vf) 934 { 935 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 936 int qid = vfop->args.qctor.qid; 937 enum bnx2x_vfop_qsetup_state state = vfop->state; 938 struct bnx2x_vfop_cmd cmd = { 939 .done = bnx2x_vfop_qsetup, 940 .block = false, 941 }; 942 943 if (vfop->rc < 0) 944 goto op_err; 945 946 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 947 948 switch (state) { 949 case BNX2X_VFOP_QSETUP_CTOR: 950 /* init the queue ctor command */ 951 vfop->state = BNX2X_VFOP_QSETUP_VLAN0; 952 vfop->rc = bnx2x_vfop_qctor_cmd(bp, vf, &cmd, qid); 953 if (vfop->rc) 954 goto op_err; 955 return; 956 957 case BNX2X_VFOP_QSETUP_VLAN0: 958 /* skip if non-leading or FPGA/EMU*/ 959 if (qid) 960 goto op_done; 961 962 /* init the queue set-vlan command (for vlan 0) */ 963 vfop->state = BNX2X_VFOP_QSETUP_DONE; 964 vfop->rc = bnx2x_vfop_vlan_set_cmd(bp, vf, &cmd, qid, 0, true); 965 if (vfop->rc) 966 goto op_err; 967 return; 968 op_err: 969 BNX2X_ERR("QSETUP[%d:%d] error: rc %d\n", vf->abs_vfid, qid, vfop->rc); 970 op_done: 971 case BNX2X_VFOP_QSETUP_DONE: 972 vf->cfg_flags |= VF_CFG_VLAN; 973 smp_mb__before_clear_bit(); 974 set_bit(BNX2X_SP_RTNL_HYPERVISOR_VLAN, 975 &bp->sp_rtnl_state); 976 smp_mb__after_clear_bit(); 977 schedule_delayed_work(&bp->sp_rtnl_task, 0); 978 bnx2x_vfop_end(bp, vf, vfop); 979 return; 980 default: 981 bnx2x_vfop_default(state); 982 } 983 } 984 985 int bnx2x_vfop_qsetup_cmd(struct bnx2x *bp, 986 struct bnx2x_virtf *vf, 987 struct bnx2x_vfop_cmd *cmd, 988 int qid) 989 { 990 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 991 992 if (vfop) { 993 vfop->args.qctor.qid = qid; 994 995 bnx2x_vfop_opset(BNX2X_VFOP_QSETUP_CTOR, 996 bnx2x_vfop_qsetup, cmd->done); 997 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qsetup, 998 cmd->block); 999 } 1000 return -ENOMEM; 1001 } 1002 1003 /* VFOP queue FLR handling (clear vlans, clear macs, queue destructor) */ 1004 static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf) 1005 { 1006 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1007 int qid = vfop->args.qx.qid; 1008 enum bnx2x_vfop_qflr_state state = vfop->state; 1009 struct bnx2x_queue_state_params *qstate; 1010 struct bnx2x_vfop_cmd cmd; 1011 1012 bnx2x_vfop_reset_wq(vf); 1013 1014 if (vfop->rc < 0) 1015 goto op_err; 1016 1017 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %d\n", vf->abs_vfid, state); 1018 1019 cmd.done = bnx2x_vfop_qflr; 1020 cmd.block = false; 1021 1022 switch (state) { 1023 case BNX2X_VFOP_QFLR_CLR_VLAN: 1024 /* vlan-clear-all: driver-only, don't consume credit */ 1025 vfop->state = BNX2X_VFOP_QFLR_CLR_MAC; 1026 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj))) 1027 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, 1028 true); 1029 if (vfop->rc) 1030 goto op_err; 1031 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 1032 1033 case BNX2X_VFOP_QFLR_CLR_MAC: 1034 /* mac-clear-all: driver only consume credit */ 1035 vfop->state = BNX2X_VFOP_QFLR_TERMINATE; 1036 if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj))) 1037 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, 1038 true); 1039 DP(BNX2X_MSG_IOV, 1040 "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d", 1041 vf->abs_vfid, vfop->rc); 1042 if (vfop->rc) 1043 goto op_err; 1044 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 1045 1046 case BNX2X_VFOP_QFLR_TERMINATE: 1047 qstate = &vfop->op_p->qctor.qstate; 1048 memset(qstate , 0, sizeof(*qstate)); 1049 qstate->q_obj = &bnx2x_vfq(vf, qid, sp_obj); 1050 vfop->state = BNX2X_VFOP_QFLR_DONE; 1051 1052 DP(BNX2X_MSG_IOV, "VF[%d] qstate during flr was %d\n", 1053 vf->abs_vfid, qstate->q_obj->state); 1054 1055 if (qstate->q_obj->state != BNX2X_Q_STATE_RESET) { 1056 qstate->q_obj->state = BNX2X_Q_STATE_STOPPED; 1057 qstate->cmd = BNX2X_Q_CMD_TERMINATE; 1058 vfop->rc = bnx2x_queue_state_change(bp, qstate); 1059 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_VERIFY_PEND); 1060 } else { 1061 goto op_done; 1062 } 1063 1064 op_err: 1065 BNX2X_ERR("QFLR[%d:%d] error: rc %d\n", 1066 vf->abs_vfid, qid, vfop->rc); 1067 op_done: 1068 case BNX2X_VFOP_QFLR_DONE: 1069 bnx2x_vfop_end(bp, vf, vfop); 1070 return; 1071 default: 1072 bnx2x_vfop_default(state); 1073 } 1074 op_pending: 1075 return; 1076 } 1077 1078 static int bnx2x_vfop_qflr_cmd(struct bnx2x *bp, 1079 struct bnx2x_virtf *vf, 1080 struct bnx2x_vfop_cmd *cmd, 1081 int qid) 1082 { 1083 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1084 1085 if (vfop) { 1086 vfop->args.qx.qid = qid; 1087 bnx2x_vfop_opset(BNX2X_VFOP_QFLR_CLR_VLAN, 1088 bnx2x_vfop_qflr, cmd->done); 1089 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qflr, 1090 cmd->block); 1091 } 1092 return -ENOMEM; 1093 } 1094 1095 /* VFOP multi-casts */ 1096 static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf) 1097 { 1098 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1099 struct bnx2x_mcast_ramrod_params *mcast = &vfop->op_p->mcast; 1100 struct bnx2x_raw_obj *raw = &mcast->mcast_obj->raw; 1101 struct bnx2x_vfop_args_mcast *args = &vfop->args.mc_list; 1102 enum bnx2x_vfop_mcast_state state = vfop->state; 1103 int i; 1104 1105 bnx2x_vfop_reset_wq(vf); 1106 1107 if (vfop->rc < 0) 1108 goto op_err; 1109 1110 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1111 1112 switch (state) { 1113 case BNX2X_VFOP_MCAST_DEL: 1114 /* clear existing mcasts */ 1115 vfop->state = BNX2X_VFOP_MCAST_ADD; 1116 vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL); 1117 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT); 1118 1119 case BNX2X_VFOP_MCAST_ADD: 1120 if (raw->check_pending(raw)) 1121 goto op_pending; 1122 1123 if (args->mc_num) { 1124 /* update mcast list on the ramrod params */ 1125 INIT_LIST_HEAD(&mcast->mcast_list); 1126 for (i = 0; i < args->mc_num; i++) 1127 list_add_tail(&(args->mc[i].link), 1128 &mcast->mcast_list); 1129 /* add new mcasts */ 1130 vfop->state = BNX2X_VFOP_MCAST_CHK_DONE; 1131 vfop->rc = bnx2x_config_mcast(bp, mcast, 1132 BNX2X_MCAST_CMD_ADD); 1133 } 1134 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 1135 1136 case BNX2X_VFOP_MCAST_CHK_DONE: 1137 vfop->rc = raw->check_pending(raw) ? 1 : 0; 1138 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 1139 default: 1140 bnx2x_vfop_default(state); 1141 } 1142 op_err: 1143 BNX2X_ERR("MCAST CONFIG error: rc %d\n", vfop->rc); 1144 op_done: 1145 kfree(args->mc); 1146 bnx2x_vfop_end(bp, vf, vfop); 1147 op_pending: 1148 return; 1149 } 1150 1151 int bnx2x_vfop_mcast_cmd(struct bnx2x *bp, 1152 struct bnx2x_virtf *vf, 1153 struct bnx2x_vfop_cmd *cmd, 1154 bnx2x_mac_addr_t *mcasts, 1155 int mcast_num, bool drv_only) 1156 { 1157 struct bnx2x_vfop *vfop = NULL; 1158 size_t mc_sz = mcast_num * sizeof(struct bnx2x_mcast_list_elem); 1159 struct bnx2x_mcast_list_elem *mc = mc_sz ? kzalloc(mc_sz, GFP_KERNEL) : 1160 NULL; 1161 1162 if (!mc_sz || mc) { 1163 vfop = bnx2x_vfop_add(bp, vf); 1164 if (vfop) { 1165 int i; 1166 struct bnx2x_mcast_ramrod_params *ramrod = 1167 &vf->op_params.mcast; 1168 1169 /* set ramrod params */ 1170 memset(ramrod, 0, sizeof(*ramrod)); 1171 ramrod->mcast_obj = &vf->mcast_obj; 1172 if (drv_only) 1173 set_bit(RAMROD_DRV_CLR_ONLY, 1174 &ramrod->ramrod_flags); 1175 1176 /* copy mcasts pointers */ 1177 vfop->args.mc_list.mc_num = mcast_num; 1178 vfop->args.mc_list.mc = mc; 1179 for (i = 0; i < mcast_num; i++) 1180 mc[i].mac = mcasts[i]; 1181 1182 bnx2x_vfop_opset(BNX2X_VFOP_MCAST_DEL, 1183 bnx2x_vfop_mcast, cmd->done); 1184 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_mcast, 1185 cmd->block); 1186 } else { 1187 kfree(mc); 1188 } 1189 } 1190 return -ENOMEM; 1191 } 1192 1193 /* VFOP rx-mode */ 1194 static void bnx2x_vfop_rxmode(struct bnx2x *bp, struct bnx2x_virtf *vf) 1195 { 1196 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1197 struct bnx2x_rx_mode_ramrod_params *ramrod = &vfop->op_p->rx_mode; 1198 enum bnx2x_vfop_rxmode_state state = vfop->state; 1199 1200 bnx2x_vfop_reset_wq(vf); 1201 1202 if (vfop->rc < 0) 1203 goto op_err; 1204 1205 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1206 1207 switch (state) { 1208 case BNX2X_VFOP_RXMODE_CONFIG: 1209 /* next state */ 1210 vfop->state = BNX2X_VFOP_RXMODE_DONE; 1211 1212 vfop->rc = bnx2x_config_rx_mode(bp, ramrod); 1213 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 1214 op_err: 1215 BNX2X_ERR("RXMODE error: rc %d\n", vfop->rc); 1216 op_done: 1217 case BNX2X_VFOP_RXMODE_DONE: 1218 bnx2x_vfop_end(bp, vf, vfop); 1219 return; 1220 default: 1221 bnx2x_vfop_default(state); 1222 } 1223 op_pending: 1224 return; 1225 } 1226 1227 int bnx2x_vfop_rxmode_cmd(struct bnx2x *bp, 1228 struct bnx2x_virtf *vf, 1229 struct bnx2x_vfop_cmd *cmd, 1230 int qid, unsigned long accept_flags) 1231 { 1232 struct bnx2x_vf_queue *vfq = vfq_get(vf, qid); 1233 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1234 1235 if (vfop) { 1236 struct bnx2x_rx_mode_ramrod_params *ramrod = 1237 &vf->op_params.rx_mode; 1238 1239 memset(ramrod, 0, sizeof(*ramrod)); 1240 1241 /* Prepare ramrod parameters */ 1242 ramrod->cid = vfq->cid; 1243 ramrod->cl_id = vfq_cl_id(vf, vfq); 1244 ramrod->rx_mode_obj = &bp->rx_mode_obj; 1245 ramrod->func_id = FW_VF_HANDLE(vf->abs_vfid); 1246 1247 ramrod->rx_accept_flags = accept_flags; 1248 ramrod->tx_accept_flags = accept_flags; 1249 ramrod->pstate = &vf->filter_state; 1250 ramrod->state = BNX2X_FILTER_RX_MODE_PENDING; 1251 1252 set_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state); 1253 set_bit(RAMROD_RX, &ramrod->ramrod_flags); 1254 set_bit(RAMROD_TX, &ramrod->ramrod_flags); 1255 1256 ramrod->rdata = 1257 bnx2x_vf_sp(bp, vf, rx_mode_rdata.e2); 1258 ramrod->rdata_mapping = 1259 bnx2x_vf_sp_map(bp, vf, rx_mode_rdata.e2); 1260 1261 bnx2x_vfop_opset(BNX2X_VFOP_RXMODE_CONFIG, 1262 bnx2x_vfop_rxmode, cmd->done); 1263 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rxmode, 1264 cmd->block); 1265 } 1266 return -ENOMEM; 1267 } 1268 1269 /* VFOP queue tear-down ('drop all' rx-mode, clear vlans, clear macs, 1270 * queue destructor) 1271 */ 1272 static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf) 1273 { 1274 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1275 int qid = vfop->args.qx.qid; 1276 enum bnx2x_vfop_qteardown_state state = vfop->state; 1277 struct bnx2x_vfop_cmd cmd; 1278 1279 if (vfop->rc < 0) 1280 goto op_err; 1281 1282 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1283 1284 cmd.done = bnx2x_vfop_qdown; 1285 cmd.block = false; 1286 1287 switch (state) { 1288 case BNX2X_VFOP_QTEARDOWN_RXMODE: 1289 /* Drop all */ 1290 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_VLAN; 1291 vfop->rc = bnx2x_vfop_rxmode_cmd(bp, vf, &cmd, qid, 0); 1292 if (vfop->rc) 1293 goto op_err; 1294 return; 1295 1296 case BNX2X_VFOP_QTEARDOWN_CLR_VLAN: 1297 /* vlan-clear-all: don't consume credit */ 1298 vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MAC; 1299 vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid, false); 1300 if (vfop->rc) 1301 goto op_err; 1302 return; 1303 1304 case BNX2X_VFOP_QTEARDOWN_CLR_MAC: 1305 /* mac-clear-all: consume credit */ 1306 vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR; 1307 vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false); 1308 if (vfop->rc) 1309 goto op_err; 1310 return; 1311 1312 case BNX2X_VFOP_QTEARDOWN_QDTOR: 1313 /* run the queue destruction flow */ 1314 DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n"); 1315 vfop->state = BNX2X_VFOP_QTEARDOWN_DONE; 1316 DP(BNX2X_MSG_IOV, "new state: BNX2X_VFOP_QTEARDOWN_DONE\n"); 1317 vfop->rc = bnx2x_vfop_qdtor_cmd(bp, vf, &cmd, qid); 1318 DP(BNX2X_MSG_IOV, "returned from cmd\n"); 1319 if (vfop->rc) 1320 goto op_err; 1321 return; 1322 op_err: 1323 BNX2X_ERR("QTEARDOWN[%d:%d] error: rc %d\n", 1324 vf->abs_vfid, qid, vfop->rc); 1325 1326 case BNX2X_VFOP_QTEARDOWN_DONE: 1327 bnx2x_vfop_end(bp, vf, vfop); 1328 return; 1329 default: 1330 bnx2x_vfop_default(state); 1331 } 1332 } 1333 1334 int bnx2x_vfop_qdown_cmd(struct bnx2x *bp, 1335 struct bnx2x_virtf *vf, 1336 struct bnx2x_vfop_cmd *cmd, 1337 int qid) 1338 { 1339 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1340 1341 /* for non leading queues skip directly to qdown sate */ 1342 if (vfop) { 1343 vfop->args.qx.qid = qid; 1344 bnx2x_vfop_opset(qid == LEADING_IDX ? 1345 BNX2X_VFOP_QTEARDOWN_RXMODE : 1346 BNX2X_VFOP_QTEARDOWN_QDTOR, bnx2x_vfop_qdown, 1347 cmd->done); 1348 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdown, 1349 cmd->block); 1350 } 1351 1352 return -ENOMEM; 1353 } 1354 1355 /* VF enable primitives 1356 * when pretend is required the caller is responsible 1357 * for calling pretend prior to calling these routines 1358 */ 1359 1360 /* internal vf enable - until vf is enabled internally all transactions 1361 * are blocked. This routine should always be called last with pretend. 1362 */ 1363 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable) 1364 { 1365 REG_WR(bp, PGLUE_B_REG_INTERNAL_VFID_ENABLE, enable ? 1 : 0); 1366 } 1367 1368 /* clears vf error in all semi blocks */ 1369 static void bnx2x_vf_semi_clear_err(struct bnx2x *bp, u8 abs_vfid) 1370 { 1371 REG_WR(bp, TSEM_REG_VFPF_ERR_NUM, abs_vfid); 1372 REG_WR(bp, USEM_REG_VFPF_ERR_NUM, abs_vfid); 1373 REG_WR(bp, CSEM_REG_VFPF_ERR_NUM, abs_vfid); 1374 REG_WR(bp, XSEM_REG_VFPF_ERR_NUM, abs_vfid); 1375 } 1376 1377 static void bnx2x_vf_pglue_clear_err(struct bnx2x *bp, u8 abs_vfid) 1378 { 1379 u32 was_err_group = (2 * BP_PATH(bp) + abs_vfid) >> 5; 1380 u32 was_err_reg = 0; 1381 1382 switch (was_err_group) { 1383 case 0: 1384 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR; 1385 break; 1386 case 1: 1387 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_63_32_CLR; 1388 break; 1389 case 2: 1390 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_95_64_CLR; 1391 break; 1392 case 3: 1393 was_err_reg = PGLUE_B_REG_WAS_ERROR_VF_127_96_CLR; 1394 break; 1395 } 1396 REG_WR(bp, was_err_reg, 1 << (abs_vfid & 0x1f)); 1397 } 1398 1399 static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf) 1400 { 1401 int i; 1402 u32 val; 1403 1404 /* Set VF masks and configuration - pretend */ 1405 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1406 1407 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0); 1408 REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0); 1409 REG_WR(bp, IGU_REG_SB_MASK_LSB, 0); 1410 REG_WR(bp, IGU_REG_SB_MASK_MSB, 0); 1411 REG_WR(bp, IGU_REG_PBA_STATUS_LSB, 0); 1412 REG_WR(bp, IGU_REG_PBA_STATUS_MSB, 0); 1413 1414 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION); 1415 val |= (IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_MSI_MSIX_EN); 1416 if (vf->cfg_flags & VF_CFG_INT_SIMD) 1417 val |= IGU_VF_CONF_SINGLE_ISR_EN; 1418 val &= ~IGU_VF_CONF_PARENT_MASK; 1419 val |= BP_FUNC(bp) << IGU_VF_CONF_PARENT_SHIFT; /* parent PF */ 1420 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); 1421 1422 DP(BNX2X_MSG_IOV, 1423 "value in IGU_REG_VF_CONFIGURATION of vf %d after write %x\n", 1424 vf->abs_vfid, REG_RD(bp, IGU_REG_VF_CONFIGURATION)); 1425 1426 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1427 1428 /* iterate over all queues, clear sb consumer */ 1429 for (i = 0; i < vf_sb_count(vf); i++) { 1430 u8 igu_sb_id = vf_igu_sb(vf, i); 1431 1432 /* zero prod memory */ 1433 REG_WR(bp, IGU_REG_PROD_CONS_MEMORY + igu_sb_id * 4, 0); 1434 1435 /* clear sb state machine */ 1436 bnx2x_igu_clear_sb_gen(bp, vf->abs_vfid, igu_sb_id, 1437 false /* VF */); 1438 1439 /* disable + update */ 1440 bnx2x_vf_igu_ack_sb(bp, vf, igu_sb_id, USTORM_ID, 0, 1441 IGU_INT_DISABLE, 1); 1442 } 1443 } 1444 1445 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid) 1446 { 1447 /* set the VF-PF association in the FW */ 1448 storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp)); 1449 storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1); 1450 1451 /* clear vf errors*/ 1452 bnx2x_vf_semi_clear_err(bp, abs_vfid); 1453 bnx2x_vf_pglue_clear_err(bp, abs_vfid); 1454 1455 /* internal vf-enable - pretend */ 1456 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, abs_vfid)); 1457 DP(BNX2X_MSG_IOV, "enabling internal access for vf %x\n", abs_vfid); 1458 bnx2x_vf_enable_internal(bp, true); 1459 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1460 } 1461 1462 static void bnx2x_vf_enable_traffic(struct bnx2x *bp, struct bnx2x_virtf *vf) 1463 { 1464 /* Reset vf in IGU interrupts are still disabled */ 1465 bnx2x_vf_igu_reset(bp, vf); 1466 1467 /* pretend to enable the vf with the PBF */ 1468 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1469 REG_WR(bp, PBF_REG_DISABLE_VF, 0); 1470 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1471 } 1472 1473 static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid) 1474 { 1475 struct pci_dev *dev; 1476 struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 1477 1478 if (!vf) 1479 return false; 1480 1481 dev = pci_get_bus_and_slot(vf->bus, vf->devfn); 1482 if (dev) 1483 return bnx2x_is_pcie_pending(dev); 1484 return false; 1485 } 1486 1487 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid) 1488 { 1489 /* Verify no pending pci transactions */ 1490 if (bnx2x_vf_is_pcie_pending(bp, abs_vfid)) 1491 BNX2X_ERR("PCIE Transactions still pending\n"); 1492 1493 return 0; 1494 } 1495 1496 /* must be called after the number of PF queues and the number of VFs are 1497 * both known 1498 */ 1499 static void 1500 bnx2x_iov_static_resc(struct bnx2x *bp, struct bnx2x_virtf *vf) 1501 { 1502 struct vf_pf_resc_request *resc = &vf->alloc_resc; 1503 u16 vlan_count = 0; 1504 1505 /* will be set only during VF-ACQUIRE */ 1506 resc->num_rxqs = 0; 1507 resc->num_txqs = 0; 1508 1509 /* no credit calculations for macs (just yet) */ 1510 resc->num_mac_filters = 1; 1511 1512 /* divvy up vlan rules */ 1513 vlan_count = bp->vlans_pool.check(&bp->vlans_pool); 1514 vlan_count = 1 << ilog2(vlan_count); 1515 resc->num_vlan_filters = vlan_count / BNX2X_NR_VIRTFN(bp); 1516 1517 /* no real limitation */ 1518 resc->num_mc_filters = 0; 1519 1520 /* num_sbs already set */ 1521 resc->num_sbs = vf->sb_count; 1522 } 1523 1524 /* FLR routines: */ 1525 static void bnx2x_vf_free_resc(struct bnx2x *bp, struct bnx2x_virtf *vf) 1526 { 1527 /* reset the state variables */ 1528 bnx2x_iov_static_resc(bp, vf); 1529 vf->state = VF_FREE; 1530 } 1531 1532 static void bnx2x_vf_flr_clnup_hw(struct bnx2x *bp, struct bnx2x_virtf *vf) 1533 { 1534 u32 poll_cnt = bnx2x_flr_clnup_poll_count(bp); 1535 1536 /* DQ usage counter */ 1537 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 1538 bnx2x_flr_clnup_poll_hw_counter(bp, DORQ_REG_VF_USAGE_CNT, 1539 "DQ VF usage counter timed out", 1540 poll_cnt); 1541 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 1542 1543 /* FW cleanup command - poll for the results */ 1544 if (bnx2x_send_final_clnup(bp, (u8)FW_VF_HANDLE(vf->abs_vfid), 1545 poll_cnt)) 1546 BNX2X_ERR("VF[%d] Final cleanup timed-out\n", vf->abs_vfid); 1547 1548 /* verify TX hw is flushed */ 1549 bnx2x_tx_hw_flushed(bp, poll_cnt); 1550 } 1551 1552 static void bnx2x_vfop_flr(struct bnx2x *bp, struct bnx2x_virtf *vf) 1553 { 1554 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 1555 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx; 1556 enum bnx2x_vfop_flr_state state = vfop->state; 1557 struct bnx2x_vfop_cmd cmd = { 1558 .done = bnx2x_vfop_flr, 1559 .block = false, 1560 }; 1561 1562 if (vfop->rc < 0) 1563 goto op_err; 1564 1565 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 1566 1567 switch (state) { 1568 case BNX2X_VFOP_FLR_QUEUES: 1569 /* the cleanup operations are valid if and only if the VF 1570 * was first acquired. 1571 */ 1572 if (++(qx->qid) < vf_rxq_count(vf)) { 1573 vfop->rc = bnx2x_vfop_qflr_cmd(bp, vf, &cmd, 1574 qx->qid); 1575 if (vfop->rc) 1576 goto op_err; 1577 return; 1578 } 1579 /* remove multicasts */ 1580 vfop->state = BNX2X_VFOP_FLR_HW; 1581 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 1582 0, true); 1583 if (vfop->rc) 1584 goto op_err; 1585 return; 1586 case BNX2X_VFOP_FLR_HW: 1587 1588 /* dispatch final cleanup and wait for HW queues to flush */ 1589 bnx2x_vf_flr_clnup_hw(bp, vf); 1590 1591 /* release VF resources */ 1592 bnx2x_vf_free_resc(bp, vf); 1593 1594 /* re-open the mailbox */ 1595 bnx2x_vf_enable_mbx(bp, vf->abs_vfid); 1596 1597 goto op_done; 1598 default: 1599 bnx2x_vfop_default(state); 1600 } 1601 op_err: 1602 BNX2X_ERR("VF[%d] FLR error: rc %d\n", vf->abs_vfid, vfop->rc); 1603 op_done: 1604 vf->flr_clnup_stage = VF_FLR_ACK; 1605 bnx2x_vfop_end(bp, vf, vfop); 1606 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR); 1607 } 1608 1609 static int bnx2x_vfop_flr_cmd(struct bnx2x *bp, 1610 struct bnx2x_virtf *vf, 1611 vfop_handler_t done) 1612 { 1613 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 1614 if (vfop) { 1615 vfop->args.qx.qid = -1; /* loop */ 1616 bnx2x_vfop_opset(BNX2X_VFOP_FLR_QUEUES, 1617 bnx2x_vfop_flr, done); 1618 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_flr, false); 1619 } 1620 return -ENOMEM; 1621 } 1622 1623 static void bnx2x_vf_flr_clnup(struct bnx2x *bp, struct bnx2x_virtf *prev_vf) 1624 { 1625 int i = prev_vf ? prev_vf->index + 1 : 0; 1626 struct bnx2x_virtf *vf; 1627 1628 /* find next VF to cleanup */ 1629 next_vf_to_clean: 1630 for (; 1631 i < BNX2X_NR_VIRTFN(bp) && 1632 (bnx2x_vf(bp, i, state) != VF_RESET || 1633 bnx2x_vf(bp, i, flr_clnup_stage) != VF_FLR_CLN); 1634 i++) 1635 ; 1636 1637 DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", i, 1638 BNX2X_NR_VIRTFN(bp)); 1639 1640 if (i < BNX2X_NR_VIRTFN(bp)) { 1641 vf = BP_VF(bp, i); 1642 1643 /* lock the vf pf channel */ 1644 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_FLR); 1645 1646 /* invoke the VF FLR SM */ 1647 if (bnx2x_vfop_flr_cmd(bp, vf, bnx2x_vf_flr_clnup)) { 1648 BNX2X_ERR("VF[%d]: FLR cleanup failed -ENOMEM\n", 1649 vf->abs_vfid); 1650 1651 /* mark the VF to be ACKED and continue */ 1652 vf->flr_clnup_stage = VF_FLR_ACK; 1653 goto next_vf_to_clean; 1654 } 1655 return; 1656 } 1657 1658 /* we are done, update vf records */ 1659 for_each_vf(bp, i) { 1660 vf = BP_VF(bp, i); 1661 1662 if (vf->flr_clnup_stage != VF_FLR_ACK) 1663 continue; 1664 1665 vf->flr_clnup_stage = VF_FLR_EPILOG; 1666 } 1667 1668 /* Acknowledge the handled VFs. 1669 * we are acknowledge all the vfs which an flr was requested for, even 1670 * if amongst them there are such that we never opened, since the mcp 1671 * will interrupt us immediately again if we only ack some of the bits, 1672 * resulting in an endless loop. This can happen for example in KVM 1673 * where an 'all ones' flr request is sometimes given by hyper visor 1674 */ 1675 DP(BNX2X_MSG_MCP, "DRV_STATUS_VF_DISABLED ACK for vfs 0x%x 0x%x\n", 1676 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]); 1677 for (i = 0; i < FLRD_VFS_DWORDS; i++) 1678 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 1679 bp->vfdb->flrd_vfs[i]); 1680 1681 bnx2x_fw_command(bp, DRV_MSG_CODE_VF_DISABLED_DONE, 0); 1682 1683 /* clear the acked bits - better yet if the MCP implemented 1684 * write to clear semantics 1685 */ 1686 for (i = 0; i < FLRD_VFS_DWORDS; i++) 1687 SHMEM2_WR(bp, drv_ack_vf_disabled[BP_FW_MB_IDX(bp)][i], 0); 1688 } 1689 1690 void bnx2x_vf_handle_flr_event(struct bnx2x *bp) 1691 { 1692 int i; 1693 1694 /* Read FLR'd VFs */ 1695 for (i = 0; i < FLRD_VFS_DWORDS; i++) 1696 bp->vfdb->flrd_vfs[i] = SHMEM2_RD(bp, mcp_vf_disabled[i]); 1697 1698 DP(BNX2X_MSG_MCP, 1699 "DRV_STATUS_VF_DISABLED received for vfs 0x%x 0x%x\n", 1700 bp->vfdb->flrd_vfs[0], bp->vfdb->flrd_vfs[1]); 1701 1702 for_each_vf(bp, i) { 1703 struct bnx2x_virtf *vf = BP_VF(bp, i); 1704 u32 reset = 0; 1705 1706 if (vf->abs_vfid < 32) 1707 reset = bp->vfdb->flrd_vfs[0] & (1 << vf->abs_vfid); 1708 else 1709 reset = bp->vfdb->flrd_vfs[1] & 1710 (1 << (vf->abs_vfid - 32)); 1711 1712 if (reset) { 1713 /* set as reset and ready for cleanup */ 1714 vf->state = VF_RESET; 1715 vf->flr_clnup_stage = VF_FLR_CLN; 1716 1717 DP(BNX2X_MSG_IOV, 1718 "Initiating Final cleanup for VF %d\n", 1719 vf->abs_vfid); 1720 } 1721 } 1722 1723 /* do the FLR cleanup for all marked VFs*/ 1724 bnx2x_vf_flr_clnup(bp, NULL); 1725 } 1726 1727 /* IOV global initialization routines */ 1728 void bnx2x_iov_init_dq(struct bnx2x *bp) 1729 { 1730 if (!IS_SRIOV(bp)) 1731 return; 1732 1733 /* Set the DQ such that the CID reflect the abs_vfid */ 1734 REG_WR(bp, DORQ_REG_VF_NORM_VF_BASE, 0); 1735 REG_WR(bp, DORQ_REG_MAX_RVFID_SIZE, ilog2(BNX2X_MAX_NUM_OF_VFS)); 1736 1737 /* Set VFs starting CID. If its > 0 the preceding CIDs are belong to 1738 * the PF L2 queues 1739 */ 1740 REG_WR(bp, DORQ_REG_VF_NORM_CID_BASE, BNX2X_FIRST_VF_CID); 1741 1742 /* The VF window size is the log2 of the max number of CIDs per VF */ 1743 REG_WR(bp, DORQ_REG_VF_NORM_CID_WND_SIZE, BNX2X_VF_CID_WND); 1744 1745 /* The VF doorbell size 0 - *B, 4 - 128B. We set it here to match 1746 * the Pf doorbell size although the 2 are independent. 1747 */ 1748 REG_WR(bp, DORQ_REG_VF_NORM_CID_OFST, 3); 1749 1750 /* No security checks for now - 1751 * configure single rule (out of 16) mask = 0x1, value = 0x0, 1752 * CID range 0 - 0x1ffff 1753 */ 1754 REG_WR(bp, DORQ_REG_VF_TYPE_MASK_0, 1); 1755 REG_WR(bp, DORQ_REG_VF_TYPE_VALUE_0, 0); 1756 REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0); 1757 REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff); 1758 1759 /* set the number of VF allowed doorbells to the full DQ range */ 1760 REG_WR(bp, DORQ_REG_VF_NORM_MAX_CID_COUNT, 0x20000); 1761 1762 /* set the VF doorbell threshold */ 1763 REG_WR(bp, DORQ_REG_VF_USAGE_CT_LIMIT, 4); 1764 } 1765 1766 void bnx2x_iov_init_dmae(struct bnx2x *bp) 1767 { 1768 if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV)) 1769 REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0); 1770 } 1771 1772 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid) 1773 { 1774 struct pci_dev *dev = bp->pdev; 1775 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1776 1777 return dev->bus->number + ((dev->devfn + iov->offset + 1778 iov->stride * vfid) >> 8); 1779 } 1780 1781 static int bnx2x_vf_devfn(struct bnx2x *bp, int vfid) 1782 { 1783 struct pci_dev *dev = bp->pdev; 1784 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1785 1786 return (dev->devfn + iov->offset + iov->stride * vfid) & 0xff; 1787 } 1788 1789 static void bnx2x_vf_set_bars(struct bnx2x *bp, struct bnx2x_virtf *vf) 1790 { 1791 int i, n; 1792 struct pci_dev *dev = bp->pdev; 1793 struct bnx2x_sriov *iov = &bp->vfdb->sriov; 1794 1795 for (i = 0, n = 0; i < PCI_SRIOV_NUM_BARS; i += 2, n++) { 1796 u64 start = pci_resource_start(dev, PCI_IOV_RESOURCES + i); 1797 u32 size = pci_resource_len(dev, PCI_IOV_RESOURCES + i); 1798 1799 size /= iov->total; 1800 vf->bars[n].bar = start + size * vf->abs_vfid; 1801 vf->bars[n].size = size; 1802 } 1803 } 1804 1805 static int bnx2x_ari_enabled(struct pci_dev *dev) 1806 { 1807 return dev->bus->self && dev->bus->self->ari_enabled; 1808 } 1809 1810 static void 1811 bnx2x_get_vf_igu_cam_info(struct bnx2x *bp) 1812 { 1813 int sb_id; 1814 u32 val; 1815 u8 fid, current_pf = 0; 1816 1817 /* IGU in normal mode - read CAM */ 1818 for (sb_id = 0; sb_id < IGU_REG_MAPPING_MEMORY_SIZE; sb_id++) { 1819 val = REG_RD(bp, IGU_REG_MAPPING_MEMORY + sb_id * 4); 1820 if (!(val & IGU_REG_MAPPING_MEMORY_VALID)) 1821 continue; 1822 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID); 1823 if (fid & IGU_FID_ENCODE_IS_PF) 1824 current_pf = fid & IGU_FID_PF_NUM_MASK; 1825 else if (current_pf == BP_ABS_FUNC(bp)) 1826 bnx2x_vf_set_igu_info(bp, sb_id, 1827 (fid & IGU_FID_VF_NUM_MASK)); 1828 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n", 1829 ((fid & IGU_FID_ENCODE_IS_PF) ? "PF" : "VF"), 1830 ((fid & IGU_FID_ENCODE_IS_PF) ? (fid & IGU_FID_PF_NUM_MASK) : 1831 (fid & IGU_FID_VF_NUM_MASK)), sb_id, 1832 GET_FIELD((val), IGU_REG_MAPPING_MEMORY_VECTOR)); 1833 } 1834 DP(BNX2X_MSG_IOV, "vf_sbs_pool is %d\n", BP_VFDB(bp)->vf_sbs_pool); 1835 } 1836 1837 static void __bnx2x_iov_free_vfdb(struct bnx2x *bp) 1838 { 1839 if (bp->vfdb) { 1840 kfree(bp->vfdb->vfqs); 1841 kfree(bp->vfdb->vfs); 1842 kfree(bp->vfdb); 1843 } 1844 bp->vfdb = NULL; 1845 } 1846 1847 static int bnx2x_sriov_pci_cfg_info(struct bnx2x *bp, struct bnx2x_sriov *iov) 1848 { 1849 int pos; 1850 struct pci_dev *dev = bp->pdev; 1851 1852 pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); 1853 if (!pos) { 1854 BNX2X_ERR("failed to find SRIOV capability in device\n"); 1855 return -ENODEV; 1856 } 1857 1858 iov->pos = pos; 1859 DP(BNX2X_MSG_IOV, "sriov ext pos %d\n", pos); 1860 pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &iov->ctrl); 1861 pci_read_config_word(dev, pos + PCI_SRIOV_TOTAL_VF, &iov->total); 1862 pci_read_config_word(dev, pos + PCI_SRIOV_INITIAL_VF, &iov->initial); 1863 pci_read_config_word(dev, pos + PCI_SRIOV_VF_OFFSET, &iov->offset); 1864 pci_read_config_word(dev, pos + PCI_SRIOV_VF_STRIDE, &iov->stride); 1865 pci_read_config_dword(dev, pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz); 1866 pci_read_config_dword(dev, pos + PCI_SRIOV_CAP, &iov->cap); 1867 pci_read_config_byte(dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link); 1868 1869 return 0; 1870 } 1871 1872 static int bnx2x_sriov_info(struct bnx2x *bp, struct bnx2x_sriov *iov) 1873 { 1874 u32 val; 1875 1876 /* read the SRIOV capability structure 1877 * The fields can be read via configuration read or 1878 * directly from the device (starting at offset PCICFG_OFFSET) 1879 */ 1880 if (bnx2x_sriov_pci_cfg_info(bp, iov)) 1881 return -ENODEV; 1882 1883 /* get the number of SRIOV bars */ 1884 iov->nres = 0; 1885 1886 /* read the first_vfid */ 1887 val = REG_RD(bp, PCICFG_OFFSET + GRC_CONFIG_REG_PF_INIT_VF); 1888 iov->first_vf_in_pf = ((val & GRC_CR_PF_INIT_VF_PF_FIRST_VF_NUM_MASK) 1889 * 8) - (BNX2X_MAX_NUM_OF_VFS * BP_PATH(bp)); 1890 1891 DP(BNX2X_MSG_IOV, 1892 "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", 1893 BP_FUNC(bp), 1894 iov->first_vf_in_pf, iov->nres, iov->cap, iov->ctrl, iov->total, 1895 iov->initial, iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz); 1896 1897 return 0; 1898 } 1899 1900 /* must be called after PF bars are mapped */ 1901 int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param, 1902 int num_vfs_param) 1903 { 1904 int err, i; 1905 struct bnx2x_sriov *iov; 1906 struct pci_dev *dev = bp->pdev; 1907 1908 bp->vfdb = NULL; 1909 1910 /* verify is pf */ 1911 if (IS_VF(bp)) 1912 return 0; 1913 1914 /* verify sriov capability is present in configuration space */ 1915 if (!pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV)) 1916 return 0; 1917 1918 /* verify chip revision */ 1919 if (CHIP_IS_E1x(bp)) 1920 return 0; 1921 1922 /* check if SRIOV support is turned off */ 1923 if (!num_vfs_param) 1924 return 0; 1925 1926 /* SRIOV assumes that num of PF CIDs < BNX2X_FIRST_VF_CID */ 1927 if (BNX2X_L2_MAX_CID(bp) >= BNX2X_FIRST_VF_CID) { 1928 BNX2X_ERR("PF cids %d are overspilling into vf space (starts at %d). Abort SRIOV\n", 1929 BNX2X_L2_MAX_CID(bp), BNX2X_FIRST_VF_CID); 1930 return 0; 1931 } 1932 1933 /* SRIOV can be enabled only with MSIX */ 1934 if (int_mode_param == BNX2X_INT_MODE_MSI || 1935 int_mode_param == BNX2X_INT_MODE_INTX) { 1936 BNX2X_ERR("Forced MSI/INTx mode is incompatible with SRIOV\n"); 1937 return 0; 1938 } 1939 1940 err = -EIO; 1941 /* verify ari is enabled */ 1942 if (!bnx2x_ari_enabled(bp->pdev)) { 1943 BNX2X_ERR("ARI not supported (check pci bridge ARI forwarding), SRIOV can not be enabled\n"); 1944 return 0; 1945 } 1946 1947 /* verify igu is in normal mode */ 1948 if (CHIP_INT_MODE_IS_BC(bp)) { 1949 BNX2X_ERR("IGU not normal mode, SRIOV can not be enabled\n"); 1950 return 0; 1951 } 1952 1953 /* allocate the vfs database */ 1954 bp->vfdb = kzalloc(sizeof(*(bp->vfdb)), GFP_KERNEL); 1955 if (!bp->vfdb) { 1956 BNX2X_ERR("failed to allocate vf database\n"); 1957 err = -ENOMEM; 1958 goto failed; 1959 } 1960 1961 /* get the sriov info - Linux already collected all the pertinent 1962 * information, however the sriov structure is for the private use 1963 * of the pci module. Also we want this information regardless 1964 * of the hyper-visor. 1965 */ 1966 iov = &(bp->vfdb->sriov); 1967 err = bnx2x_sriov_info(bp, iov); 1968 if (err) 1969 goto failed; 1970 1971 /* SR-IOV capability was enabled but there are no VFs*/ 1972 if (iov->total == 0) 1973 goto failed; 1974 1975 iov->nr_virtfn = min_t(u16, iov->total, num_vfs_param); 1976 1977 DP(BNX2X_MSG_IOV, "num_vfs_param was %d, nr_virtfn was %d\n", 1978 num_vfs_param, iov->nr_virtfn); 1979 1980 /* allocate the vf array */ 1981 bp->vfdb->vfs = kzalloc(sizeof(struct bnx2x_virtf) * 1982 BNX2X_NR_VIRTFN(bp), GFP_KERNEL); 1983 if (!bp->vfdb->vfs) { 1984 BNX2X_ERR("failed to allocate vf array\n"); 1985 err = -ENOMEM; 1986 goto failed; 1987 } 1988 1989 /* Initial VF init - index and abs_vfid - nr_virtfn must be set */ 1990 for_each_vf(bp, i) { 1991 bnx2x_vf(bp, i, index) = i; 1992 bnx2x_vf(bp, i, abs_vfid) = iov->first_vf_in_pf + i; 1993 bnx2x_vf(bp, i, state) = VF_FREE; 1994 INIT_LIST_HEAD(&bnx2x_vf(bp, i, op_list_head)); 1995 mutex_init(&bnx2x_vf(bp, i, op_mutex)); 1996 bnx2x_vf(bp, i, op_current) = CHANNEL_TLV_NONE; 1997 } 1998 1999 /* re-read the IGU CAM for VFs - index and abs_vfid must be set */ 2000 bnx2x_get_vf_igu_cam_info(bp); 2001 2002 /* allocate the queue arrays for all VFs */ 2003 bp->vfdb->vfqs = kzalloc( 2004 BNX2X_MAX_NUM_VF_QUEUES * sizeof(struct bnx2x_vf_queue), 2005 GFP_KERNEL); 2006 2007 DP(BNX2X_MSG_IOV, "bp->vfdb->vfqs was %p\n", bp->vfdb->vfqs); 2008 2009 if (!bp->vfdb->vfqs) { 2010 BNX2X_ERR("failed to allocate vf queue array\n"); 2011 err = -ENOMEM; 2012 goto failed; 2013 } 2014 2015 return 0; 2016 failed: 2017 DP(BNX2X_MSG_IOV, "Failed err=%d\n", err); 2018 __bnx2x_iov_free_vfdb(bp); 2019 return err; 2020 } 2021 2022 void bnx2x_iov_remove_one(struct bnx2x *bp) 2023 { 2024 /* if SRIOV is not enabled there's nothing to do */ 2025 if (!IS_SRIOV(bp)) 2026 return; 2027 2028 DP(BNX2X_MSG_IOV, "about to call disable sriov\n"); 2029 pci_disable_sriov(bp->pdev); 2030 DP(BNX2X_MSG_IOV, "sriov disabled\n"); 2031 2032 /* free vf database */ 2033 __bnx2x_iov_free_vfdb(bp); 2034 } 2035 2036 void bnx2x_iov_free_mem(struct bnx2x *bp) 2037 { 2038 int i; 2039 2040 if (!IS_SRIOV(bp)) 2041 return; 2042 2043 /* free vfs hw contexts */ 2044 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 2045 struct hw_dma *cxt = &bp->vfdb->context[i]; 2046 BNX2X_PCI_FREE(cxt->addr, cxt->mapping, cxt->size); 2047 } 2048 2049 BNX2X_PCI_FREE(BP_VFDB(bp)->sp_dma.addr, 2050 BP_VFDB(bp)->sp_dma.mapping, 2051 BP_VFDB(bp)->sp_dma.size); 2052 2053 BNX2X_PCI_FREE(BP_VF_MBX_DMA(bp)->addr, 2054 BP_VF_MBX_DMA(bp)->mapping, 2055 BP_VF_MBX_DMA(bp)->size); 2056 2057 BNX2X_PCI_FREE(BP_VF_BULLETIN_DMA(bp)->addr, 2058 BP_VF_BULLETIN_DMA(bp)->mapping, 2059 BP_VF_BULLETIN_DMA(bp)->size); 2060 } 2061 2062 int bnx2x_iov_alloc_mem(struct bnx2x *bp) 2063 { 2064 size_t tot_size; 2065 int i, rc = 0; 2066 2067 if (!IS_SRIOV(bp)) 2068 return rc; 2069 2070 /* allocate vfs hw contexts */ 2071 tot_size = (BP_VFDB(bp)->sriov.first_vf_in_pf + BNX2X_NR_VIRTFN(bp)) * 2072 BNX2X_CIDS_PER_VF * sizeof(union cdu_context); 2073 2074 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 2075 struct hw_dma *cxt = BP_VF_CXT_PAGE(bp, i); 2076 cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ); 2077 2078 if (cxt->size) { 2079 BNX2X_PCI_ALLOC(cxt->addr, &cxt->mapping, cxt->size); 2080 } else { 2081 cxt->addr = NULL; 2082 cxt->mapping = 0; 2083 } 2084 tot_size -= cxt->size; 2085 } 2086 2087 /* allocate vfs ramrods dma memory - client_init and set_mac */ 2088 tot_size = BNX2X_NR_VIRTFN(bp) * sizeof(struct bnx2x_vf_sp); 2089 BNX2X_PCI_ALLOC(BP_VFDB(bp)->sp_dma.addr, &BP_VFDB(bp)->sp_dma.mapping, 2090 tot_size); 2091 BP_VFDB(bp)->sp_dma.size = tot_size; 2092 2093 /* allocate mailboxes */ 2094 tot_size = BNX2X_NR_VIRTFN(bp) * MBX_MSG_ALIGNED_SIZE; 2095 BNX2X_PCI_ALLOC(BP_VF_MBX_DMA(bp)->addr, &BP_VF_MBX_DMA(bp)->mapping, 2096 tot_size); 2097 BP_VF_MBX_DMA(bp)->size = tot_size; 2098 2099 /* allocate local bulletin boards */ 2100 tot_size = BNX2X_NR_VIRTFN(bp) * BULLETIN_CONTENT_SIZE; 2101 BNX2X_PCI_ALLOC(BP_VF_BULLETIN_DMA(bp)->addr, 2102 &BP_VF_BULLETIN_DMA(bp)->mapping, tot_size); 2103 BP_VF_BULLETIN_DMA(bp)->size = tot_size; 2104 2105 return 0; 2106 2107 alloc_mem_err: 2108 return -ENOMEM; 2109 } 2110 2111 static void bnx2x_vfq_init(struct bnx2x *bp, struct bnx2x_virtf *vf, 2112 struct bnx2x_vf_queue *q) 2113 { 2114 u8 cl_id = vfq_cl_id(vf, q); 2115 u8 func_id = FW_VF_HANDLE(vf->abs_vfid); 2116 unsigned long q_type = 0; 2117 2118 set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type); 2119 set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type); 2120 2121 /* Queue State object */ 2122 bnx2x_init_queue_obj(bp, &q->sp_obj, 2123 cl_id, &q->cid, 1, func_id, 2124 bnx2x_vf_sp(bp, vf, q_data), 2125 bnx2x_vf_sp_map(bp, vf, q_data), 2126 q_type); 2127 2128 DP(BNX2X_MSG_IOV, 2129 "initialized vf %d's queue object. func id set to %d. cid set to 0x%x\n", 2130 vf->abs_vfid, q->sp_obj.func_id, q->cid); 2131 } 2132 2133 /* called by bnx2x_nic_load */ 2134 int bnx2x_iov_nic_init(struct bnx2x *bp) 2135 { 2136 int vfid; 2137 2138 if (!IS_SRIOV(bp)) { 2139 DP(BNX2X_MSG_IOV, "vfdb was not allocated\n"); 2140 return 0; 2141 } 2142 2143 DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn); 2144 2145 /* let FLR complete ... */ 2146 msleep(100); 2147 2148 /* initialize vf database */ 2149 for_each_vf(bp, vfid) { 2150 struct bnx2x_virtf *vf = BP_VF(bp, vfid); 2151 2152 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vfid) * 2153 BNX2X_CIDS_PER_VF; 2154 2155 union cdu_context *base_cxt = (union cdu_context *) 2156 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr + 2157 (base_vf_cid & (ILT_PAGE_CIDS-1)); 2158 2159 DP(BNX2X_MSG_IOV, 2160 "VF[%d] Max IGU SBs: %d, base vf cid 0x%x, base cid 0x%x, base cxt %p\n", 2161 vf->abs_vfid, vf_sb_count(vf), base_vf_cid, 2162 BNX2X_FIRST_VF_CID + base_vf_cid, base_cxt); 2163 2164 /* init statically provisioned resources */ 2165 bnx2x_iov_static_resc(bp, vf); 2166 2167 /* queues are initialized during VF-ACQUIRE */ 2168 2169 /* reserve the vf vlan credit */ 2170 bp->vlans_pool.get(&bp->vlans_pool, vf_vlan_rules_cnt(vf)); 2171 2172 vf->filter_state = 0; 2173 vf->sp_cl_id = bnx2x_fp(bp, 0, cl_id); 2174 2175 /* init mcast object - This object will be re-initialized 2176 * during VF-ACQUIRE with the proper cl_id and cid. 2177 * It needs to be initialized here so that it can be safely 2178 * handled by a subsequent FLR flow. 2179 */ 2180 bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF, 2181 0xFF, 0xFF, 0xFF, 2182 bnx2x_vf_sp(bp, vf, mcast_rdata), 2183 bnx2x_vf_sp_map(bp, vf, mcast_rdata), 2184 BNX2X_FILTER_MCAST_PENDING, 2185 &vf->filter_state, 2186 BNX2X_OBJ_TYPE_RX_TX); 2187 2188 /* set the mailbox message addresses */ 2189 BP_VF_MBX(bp, vfid)->msg = (struct bnx2x_vf_mbx_msg *) 2190 (((u8 *)BP_VF_MBX_DMA(bp)->addr) + vfid * 2191 MBX_MSG_ALIGNED_SIZE); 2192 2193 BP_VF_MBX(bp, vfid)->msg_mapping = BP_VF_MBX_DMA(bp)->mapping + 2194 vfid * MBX_MSG_ALIGNED_SIZE; 2195 2196 /* Enable vf mailbox */ 2197 bnx2x_vf_enable_mbx(bp, vf->abs_vfid); 2198 } 2199 2200 /* Final VF init */ 2201 for_each_vf(bp, vfid) { 2202 struct bnx2x_virtf *vf = BP_VF(bp, vfid); 2203 2204 /* fill in the BDF and bars */ 2205 vf->bus = bnx2x_vf_bus(bp, vfid); 2206 vf->devfn = bnx2x_vf_devfn(bp, vfid); 2207 bnx2x_vf_set_bars(bp, vf); 2208 2209 DP(BNX2X_MSG_IOV, 2210 "VF info[%d]: bus 0x%x, devfn 0x%x, bar0 [0x%x, %d], bar1 [0x%x, %d], bar2 [0x%x, %d]\n", 2211 vf->abs_vfid, vf->bus, vf->devfn, 2212 (unsigned)vf->bars[0].bar, vf->bars[0].size, 2213 (unsigned)vf->bars[1].bar, vf->bars[1].size, 2214 (unsigned)vf->bars[2].bar, vf->bars[2].size); 2215 } 2216 2217 return 0; 2218 } 2219 2220 /* called by bnx2x_chip_cleanup */ 2221 int bnx2x_iov_chip_cleanup(struct bnx2x *bp) 2222 { 2223 int i; 2224 2225 if (!IS_SRIOV(bp)) 2226 return 0; 2227 2228 /* release all the VFs */ 2229 for_each_vf(bp, i) 2230 bnx2x_vf_release(bp, BP_VF(bp, i), true); /* blocking */ 2231 2232 return 0; 2233 } 2234 2235 /* called by bnx2x_init_hw_func, returns the next ilt line */ 2236 int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line) 2237 { 2238 int i; 2239 struct bnx2x_ilt *ilt = BP_ILT(bp); 2240 2241 if (!IS_SRIOV(bp)) 2242 return line; 2243 2244 /* set vfs ilt lines */ 2245 for (i = 0; i < BNX2X_VF_CIDS/ILT_PAGE_CIDS; i++) { 2246 struct hw_dma *hw_cxt = BP_VF_CXT_PAGE(bp, i); 2247 2248 ilt->lines[line+i].page = hw_cxt->addr; 2249 ilt->lines[line+i].page_mapping = hw_cxt->mapping; 2250 ilt->lines[line+i].size = hw_cxt->size; /* doesn't matter */ 2251 } 2252 return line + i; 2253 } 2254 2255 static u8 bnx2x_iov_is_vf_cid(struct bnx2x *bp, u16 cid) 2256 { 2257 return ((cid >= BNX2X_FIRST_VF_CID) && 2258 ((cid - BNX2X_FIRST_VF_CID) < BNX2X_VF_CIDS)); 2259 } 2260 2261 static 2262 void bnx2x_vf_handle_classification_eqe(struct bnx2x *bp, 2263 struct bnx2x_vf_queue *vfq, 2264 union event_ring_elem *elem) 2265 { 2266 unsigned long ramrod_flags = 0; 2267 int rc = 0; 2268 2269 /* Always push next commands out, don't wait here */ 2270 set_bit(RAMROD_CONT, &ramrod_flags); 2271 2272 switch (elem->message.data.eth_event.echo >> BNX2X_SWCID_SHIFT) { 2273 case BNX2X_FILTER_MAC_PENDING: 2274 rc = vfq->mac_obj.complete(bp, &vfq->mac_obj, elem, 2275 &ramrod_flags); 2276 break; 2277 case BNX2X_FILTER_VLAN_PENDING: 2278 rc = vfq->vlan_obj.complete(bp, &vfq->vlan_obj, elem, 2279 &ramrod_flags); 2280 break; 2281 default: 2282 BNX2X_ERR("Unsupported classification command: %d\n", 2283 elem->message.data.eth_event.echo); 2284 return; 2285 } 2286 if (rc < 0) 2287 BNX2X_ERR("Failed to schedule new commands: %d\n", rc); 2288 else if (rc > 0) 2289 DP(BNX2X_MSG_IOV, "Scheduled next pending commands...\n"); 2290 } 2291 2292 static 2293 void bnx2x_vf_handle_mcast_eqe(struct bnx2x *bp, 2294 struct bnx2x_virtf *vf) 2295 { 2296 struct bnx2x_mcast_ramrod_params rparam = {NULL}; 2297 int rc; 2298 2299 rparam.mcast_obj = &vf->mcast_obj; 2300 vf->mcast_obj.raw.clear_pending(&vf->mcast_obj.raw); 2301 2302 /* If there are pending mcast commands - send them */ 2303 if (vf->mcast_obj.check_pending(&vf->mcast_obj)) { 2304 rc = bnx2x_config_mcast(bp, &rparam, BNX2X_MCAST_CMD_CONT); 2305 if (rc < 0) 2306 BNX2X_ERR("Failed to send pending mcast commands: %d\n", 2307 rc); 2308 } 2309 } 2310 2311 static 2312 void bnx2x_vf_handle_filters_eqe(struct bnx2x *bp, 2313 struct bnx2x_virtf *vf) 2314 { 2315 smp_mb__before_clear_bit(); 2316 clear_bit(BNX2X_FILTER_RX_MODE_PENDING, &vf->filter_state); 2317 smp_mb__after_clear_bit(); 2318 } 2319 2320 int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem) 2321 { 2322 struct bnx2x_virtf *vf; 2323 int qidx = 0, abs_vfid; 2324 u8 opcode; 2325 u16 cid = 0xffff; 2326 2327 if (!IS_SRIOV(bp)) 2328 return 1; 2329 2330 /* first get the cid - the only events we handle here are cfc-delete 2331 * and set-mac completion 2332 */ 2333 opcode = elem->message.opcode; 2334 2335 switch (opcode) { 2336 case EVENT_RING_OPCODE_CFC_DEL: 2337 cid = SW_CID((__force __le32) 2338 elem->message.data.cfc_del_event.cid); 2339 DP(BNX2X_MSG_IOV, "checking cfc-del comp cid=%d\n", cid); 2340 break; 2341 case EVENT_RING_OPCODE_CLASSIFICATION_RULES: 2342 case EVENT_RING_OPCODE_MULTICAST_RULES: 2343 case EVENT_RING_OPCODE_FILTERS_RULES: 2344 cid = (elem->message.data.eth_event.echo & 2345 BNX2X_SWCID_MASK); 2346 DP(BNX2X_MSG_IOV, "checking filtering comp cid=%d\n", cid); 2347 break; 2348 case EVENT_RING_OPCODE_VF_FLR: 2349 abs_vfid = elem->message.data.vf_flr_event.vf_id; 2350 DP(BNX2X_MSG_IOV, "Got VF FLR notification abs_vfid=%d\n", 2351 abs_vfid); 2352 goto get_vf; 2353 case EVENT_RING_OPCODE_MALICIOUS_VF: 2354 abs_vfid = elem->message.data.malicious_vf_event.vf_id; 2355 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n", 2356 abs_vfid, elem->message.data.malicious_vf_event.err_id); 2357 goto get_vf; 2358 default: 2359 return 1; 2360 } 2361 2362 /* check if the cid is the VF range */ 2363 if (!bnx2x_iov_is_vf_cid(bp, cid)) { 2364 DP(BNX2X_MSG_IOV, "cid is outside vf range: %d\n", cid); 2365 return 1; 2366 } 2367 2368 /* extract vf and rxq index from vf_cid - relies on the following: 2369 * 1. vfid on cid reflects the true abs_vfid 2370 * 2. The max number of VFs (per path) is 64 2371 */ 2372 qidx = cid & ((1 << BNX2X_VF_CID_WND)-1); 2373 abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1); 2374 get_vf: 2375 vf = bnx2x_vf_by_abs_fid(bp, abs_vfid); 2376 2377 if (!vf) { 2378 BNX2X_ERR("EQ completion for unknown VF, cid %d, abs_vfid %d\n", 2379 cid, abs_vfid); 2380 return 0; 2381 } 2382 2383 switch (opcode) { 2384 case EVENT_RING_OPCODE_CFC_DEL: 2385 DP(BNX2X_MSG_IOV, "got VF [%d:%d] cfc delete ramrod\n", 2386 vf->abs_vfid, qidx); 2387 vfq_get(vf, qidx)->sp_obj.complete_cmd(bp, 2388 &vfq_get(vf, 2389 qidx)->sp_obj, 2390 BNX2X_Q_CMD_CFC_DEL); 2391 break; 2392 case EVENT_RING_OPCODE_CLASSIFICATION_RULES: 2393 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mac/vlan ramrod\n", 2394 vf->abs_vfid, qidx); 2395 bnx2x_vf_handle_classification_eqe(bp, vfq_get(vf, qidx), elem); 2396 break; 2397 case EVENT_RING_OPCODE_MULTICAST_RULES: 2398 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set mcast ramrod\n", 2399 vf->abs_vfid, qidx); 2400 bnx2x_vf_handle_mcast_eqe(bp, vf); 2401 break; 2402 case EVENT_RING_OPCODE_FILTERS_RULES: 2403 DP(BNX2X_MSG_IOV, "got VF [%d:%d] set rx-mode ramrod\n", 2404 vf->abs_vfid, qidx); 2405 bnx2x_vf_handle_filters_eqe(bp, vf); 2406 break; 2407 case EVENT_RING_OPCODE_VF_FLR: 2408 DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n", 2409 vf->abs_vfid); 2410 /* Do nothing for now */ 2411 break; 2412 case EVENT_RING_OPCODE_MALICIOUS_VF: 2413 DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n", 2414 abs_vfid, elem->message.data.malicious_vf_event.err_id); 2415 /* Do nothing for now */ 2416 break; 2417 } 2418 /* SRIOV: reschedule any 'in_progress' operations */ 2419 bnx2x_iov_sp_event(bp, cid, false); 2420 2421 return 0; 2422 } 2423 2424 static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid) 2425 { 2426 /* extract the vf from vf_cid - relies on the following: 2427 * 1. vfid on cid reflects the true abs_vfid 2428 * 2. The max number of VFs (per path) is 64 2429 */ 2430 int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1); 2431 return bnx2x_vf_by_abs_fid(bp, abs_vfid); 2432 } 2433 2434 void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid, 2435 struct bnx2x_queue_sp_obj **q_obj) 2436 { 2437 struct bnx2x_virtf *vf; 2438 2439 if (!IS_SRIOV(bp)) 2440 return; 2441 2442 vf = bnx2x_vf_by_cid(bp, vf_cid); 2443 2444 if (vf) { 2445 /* extract queue index from vf_cid - relies on the following: 2446 * 1. vfid on cid reflects the true abs_vfid 2447 * 2. The max number of VFs (per path) is 64 2448 */ 2449 int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1); 2450 *q_obj = &bnx2x_vfq(vf, q_index, sp_obj); 2451 } else { 2452 BNX2X_ERR("No vf matching cid %d\n", vf_cid); 2453 } 2454 } 2455 2456 void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work) 2457 { 2458 struct bnx2x_virtf *vf; 2459 2460 /* check if the cid is the VF range */ 2461 if (!IS_SRIOV(bp) || !bnx2x_iov_is_vf_cid(bp, vf_cid)) 2462 return; 2463 2464 vf = bnx2x_vf_by_cid(bp, vf_cid); 2465 if (vf) { 2466 /* set in_progress flag */ 2467 atomic_set(&vf->op_in_progress, 1); 2468 if (queue_work) 2469 queue_delayed_work(bnx2x_wq, &bp->sp_task, 0); 2470 } 2471 } 2472 2473 void bnx2x_iov_adjust_stats_req(struct bnx2x *bp) 2474 { 2475 int i; 2476 int first_queue_query_index, num_queues_req; 2477 dma_addr_t cur_data_offset; 2478 struct stats_query_entry *cur_query_entry; 2479 u8 stats_count = 0; 2480 bool is_fcoe = false; 2481 2482 if (!IS_SRIOV(bp)) 2483 return; 2484 2485 if (!NO_FCOE(bp)) 2486 is_fcoe = true; 2487 2488 /* fcoe adds one global request and one queue request */ 2489 num_queues_req = BNX2X_NUM_ETH_QUEUES(bp) + is_fcoe; 2490 first_queue_query_index = BNX2X_FIRST_QUEUE_QUERY_IDX - 2491 (is_fcoe ? 0 : 1); 2492 2493 DP(BNX2X_MSG_IOV, 2494 "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", 2495 BNX2X_NUM_ETH_QUEUES(bp), is_fcoe, first_queue_query_index, 2496 first_queue_query_index + num_queues_req); 2497 2498 cur_data_offset = bp->fw_stats_data_mapping + 2499 offsetof(struct bnx2x_fw_stats_data, queue_stats) + 2500 num_queues_req * sizeof(struct per_queue_stats); 2501 2502 cur_query_entry = &bp->fw_stats_req-> 2503 query[first_queue_query_index + num_queues_req]; 2504 2505 for_each_vf(bp, i) { 2506 int j; 2507 struct bnx2x_virtf *vf = BP_VF(bp, i); 2508 2509 if (vf->state != VF_ENABLED) { 2510 DP(BNX2X_MSG_IOV, 2511 "vf %d not enabled so no stats for it\n", 2512 vf->abs_vfid); 2513 continue; 2514 } 2515 2516 DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid); 2517 for_each_vfq(vf, j) { 2518 struct bnx2x_vf_queue *rxq = vfq_get(vf, j); 2519 2520 dma_addr_t q_stats_addr = 2521 vf->fw_stat_map + j * vf->stats_stride; 2522 2523 /* collect stats fro active queues only */ 2524 if (bnx2x_get_q_logical_state(bp, &rxq->sp_obj) == 2525 BNX2X_Q_LOGICAL_STATE_STOPPED) 2526 continue; 2527 2528 /* create stats query entry for this queue */ 2529 cur_query_entry->kind = STATS_TYPE_QUEUE; 2530 cur_query_entry->index = vfq_stat_id(vf, rxq); 2531 cur_query_entry->funcID = 2532 cpu_to_le16(FW_VF_HANDLE(vf->abs_vfid)); 2533 cur_query_entry->address.hi = 2534 cpu_to_le32(U64_HI(q_stats_addr)); 2535 cur_query_entry->address.lo = 2536 cpu_to_le32(U64_LO(q_stats_addr)); 2537 DP(BNX2X_MSG_IOV, 2538 "added address %x %x for vf %d queue %d client %d\n", 2539 cur_query_entry->address.hi, 2540 cur_query_entry->address.lo, cur_query_entry->funcID, 2541 j, cur_query_entry->index); 2542 cur_query_entry++; 2543 cur_data_offset += sizeof(struct per_queue_stats); 2544 stats_count++; 2545 2546 /* all stats are coalesced to the leading queue */ 2547 if (vf->cfg_flags & VF_CFG_STATS_COALESCE) 2548 break; 2549 } 2550 } 2551 bp->fw_stats_req->hdr.cmd_num = bp->fw_stats_num + stats_count; 2552 } 2553 2554 void bnx2x_iov_sp_task(struct bnx2x *bp) 2555 { 2556 int i; 2557 2558 if (!IS_SRIOV(bp)) 2559 return; 2560 /* Iterate over all VFs and invoke state transition for VFs with 2561 * 'in-progress' slow-path operations 2562 */ 2563 DP(BNX2X_MSG_IOV, "searching for pending vf operations\n"); 2564 for_each_vf(bp, i) { 2565 struct bnx2x_virtf *vf = BP_VF(bp, i); 2566 2567 if (!vf) { 2568 BNX2X_ERR("VF was null! skipping...\n"); 2569 continue; 2570 } 2571 2572 if (!list_empty(&vf->op_list_head) && 2573 atomic_read(&vf->op_in_progress)) { 2574 DP(BNX2X_MSG_IOV, "running pending op for vf %d\n", i); 2575 bnx2x_vfop_cur(bp, vf)->transition(bp, vf); 2576 } 2577 } 2578 } 2579 2580 static inline 2581 struct bnx2x_virtf *__vf_from_stat_id(struct bnx2x *bp, u8 stat_id) 2582 { 2583 int i; 2584 struct bnx2x_virtf *vf = NULL; 2585 2586 for_each_vf(bp, i) { 2587 vf = BP_VF(bp, i); 2588 if (stat_id >= vf->igu_base_id && 2589 stat_id < vf->igu_base_id + vf_sb_count(vf)) 2590 break; 2591 } 2592 return vf; 2593 } 2594 2595 /* VF API helpers */ 2596 static void bnx2x_vf_qtbl_set_q(struct bnx2x *bp, u8 abs_vfid, u8 qid, 2597 u8 enable) 2598 { 2599 u32 reg = PXP_REG_HST_ZONE_PERMISSION_TABLE + qid * 4; 2600 u32 val = enable ? (abs_vfid | (1 << 6)) : 0; 2601 2602 REG_WR(bp, reg, val); 2603 } 2604 2605 static void bnx2x_vf_clr_qtbl(struct bnx2x *bp, struct bnx2x_virtf *vf) 2606 { 2607 int i; 2608 2609 for_each_vfq(vf, i) 2610 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid, 2611 vfq_qzone_id(vf, vfq_get(vf, i)), false); 2612 } 2613 2614 static void bnx2x_vf_igu_disable(struct bnx2x *bp, struct bnx2x_virtf *vf) 2615 { 2616 u32 val; 2617 2618 /* clear the VF configuration - pretend */ 2619 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf->abs_vfid)); 2620 val = REG_RD(bp, IGU_REG_VF_CONFIGURATION); 2621 val &= ~(IGU_VF_CONF_MSI_MSIX_EN | IGU_VF_CONF_SINGLE_ISR_EN | 2622 IGU_VF_CONF_FUNC_EN | IGU_VF_CONF_PARENT_MASK); 2623 REG_WR(bp, IGU_REG_VF_CONFIGURATION, val); 2624 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 2625 } 2626 2627 u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf) 2628 { 2629 return min_t(u8, min_t(u8, vf_sb_count(vf), BNX2X_CIDS_PER_VF), 2630 BNX2X_VF_MAX_QUEUES); 2631 } 2632 2633 static 2634 int bnx2x_vf_chk_avail_resc(struct bnx2x *bp, struct bnx2x_virtf *vf, 2635 struct vf_pf_resc_request *req_resc) 2636 { 2637 u8 rxq_cnt = vf_rxq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf); 2638 u8 txq_cnt = vf_txq_count(vf) ? : bnx2x_vf_max_queue_cnt(bp, vf); 2639 2640 return ((req_resc->num_rxqs <= rxq_cnt) && 2641 (req_resc->num_txqs <= txq_cnt) && 2642 (req_resc->num_sbs <= vf_sb_count(vf)) && 2643 (req_resc->num_mac_filters <= vf_mac_rules_cnt(vf)) && 2644 (req_resc->num_vlan_filters <= vf_vlan_rules_cnt(vf))); 2645 } 2646 2647 /* CORE VF API */ 2648 int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf, 2649 struct vf_pf_resc_request *resc) 2650 { 2651 int base_vf_cid = (BP_VFDB(bp)->sriov.first_vf_in_pf + vf->index) * 2652 BNX2X_CIDS_PER_VF; 2653 2654 union cdu_context *base_cxt = (union cdu_context *) 2655 BP_VF_CXT_PAGE(bp, base_vf_cid/ILT_PAGE_CIDS)->addr + 2656 (base_vf_cid & (ILT_PAGE_CIDS-1)); 2657 int i; 2658 2659 /* if state is 'acquired' the VF was not released or FLR'd, in 2660 * this case the returned resources match the acquired already 2661 * acquired resources. Verify that the requested numbers do 2662 * not exceed the already acquired numbers. 2663 */ 2664 if (vf->state == VF_ACQUIRED) { 2665 DP(BNX2X_MSG_IOV, "VF[%d] Trying to re-acquire resources (VF was not released or FLR'd)\n", 2666 vf->abs_vfid); 2667 2668 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) { 2669 BNX2X_ERR("VF[%d] When re-acquiring resources, requested numbers must be <= then previously acquired numbers\n", 2670 vf->abs_vfid); 2671 return -EINVAL; 2672 } 2673 return 0; 2674 } 2675 2676 /* Otherwise vf state must be 'free' or 'reset' */ 2677 if (vf->state != VF_FREE && vf->state != VF_RESET) { 2678 BNX2X_ERR("VF[%d] Can not acquire a VF with state %d\n", 2679 vf->abs_vfid, vf->state); 2680 return -EINVAL; 2681 } 2682 2683 /* static allocation: 2684 * the global maximum number are fixed per VF. Fail the request if 2685 * requested number exceed these globals 2686 */ 2687 if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) { 2688 DP(BNX2X_MSG_IOV, 2689 "cannot fulfill vf resource request. Placing maximal available values in response\n"); 2690 /* set the max resource in the vf */ 2691 return -ENOMEM; 2692 } 2693 2694 /* Set resources counters - 0 request means max available */ 2695 vf_sb_count(vf) = resc->num_sbs; 2696 vf_rxq_count(vf) = resc->num_rxqs ? : bnx2x_vf_max_queue_cnt(bp, vf); 2697 vf_txq_count(vf) = resc->num_txqs ? : bnx2x_vf_max_queue_cnt(bp, vf); 2698 if (resc->num_mac_filters) 2699 vf_mac_rules_cnt(vf) = resc->num_mac_filters; 2700 if (resc->num_vlan_filters) 2701 vf_vlan_rules_cnt(vf) = resc->num_vlan_filters; 2702 2703 DP(BNX2X_MSG_IOV, 2704 "Fulfilling vf request: sb count %d, tx_count %d, rx_count %d, mac_rules_count %d, vlan_rules_count %d\n", 2705 vf_sb_count(vf), vf_rxq_count(vf), 2706 vf_txq_count(vf), vf_mac_rules_cnt(vf), 2707 vf_vlan_rules_cnt(vf)); 2708 2709 /* Initialize the queues */ 2710 if (!vf->vfqs) { 2711 DP(BNX2X_MSG_IOV, "vf->vfqs was not allocated\n"); 2712 return -EINVAL; 2713 } 2714 2715 for_each_vfq(vf, i) { 2716 struct bnx2x_vf_queue *q = vfq_get(vf, i); 2717 2718 if (!q) { 2719 BNX2X_ERR("q number %d was not allocated\n", i); 2720 return -EINVAL; 2721 } 2722 2723 q->index = i; 2724 q->cxt = &((base_cxt + i)->eth); 2725 q->cid = BNX2X_FIRST_VF_CID + base_vf_cid + i; 2726 2727 DP(BNX2X_MSG_IOV, "VFQ[%d:%d]: index %d, cid 0x%x, cxt %p\n", 2728 vf->abs_vfid, i, q->index, q->cid, q->cxt); 2729 2730 /* init SP objects */ 2731 bnx2x_vfq_init(bp, vf, q); 2732 } 2733 vf->state = VF_ACQUIRED; 2734 return 0; 2735 } 2736 2737 int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map) 2738 { 2739 struct bnx2x_func_init_params func_init = {0}; 2740 u16 flags = 0; 2741 int i; 2742 2743 /* the sb resources are initialized at this point, do the 2744 * FW/HW initializations 2745 */ 2746 for_each_vf_sb(vf, i) 2747 bnx2x_init_sb(bp, (dma_addr_t)sb_map[i], vf->abs_vfid, true, 2748 vf_igu_sb(vf, i), vf_igu_sb(vf, i)); 2749 2750 /* Sanity checks */ 2751 if (vf->state != VF_ACQUIRED) { 2752 DP(BNX2X_MSG_IOV, "VF[%d] is not in VF_ACQUIRED, but %d\n", 2753 vf->abs_vfid, vf->state); 2754 return -EINVAL; 2755 } 2756 2757 /* let FLR complete ... */ 2758 msleep(100); 2759 2760 /* FLR cleanup epilogue */ 2761 if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid)) 2762 return -EBUSY; 2763 2764 /* reset IGU VF statistics: MSIX */ 2765 REG_WR(bp, IGU_REG_STATISTIC_NUM_MESSAGE_SENT + vf->abs_vfid * 4 , 0); 2766 2767 /* vf init */ 2768 if (vf->cfg_flags & VF_CFG_STATS) 2769 flags |= (FUNC_FLG_STATS | FUNC_FLG_SPQ); 2770 2771 if (vf->cfg_flags & VF_CFG_TPA) 2772 flags |= FUNC_FLG_TPA; 2773 2774 if (is_vf_multi(vf)) 2775 flags |= FUNC_FLG_RSS; 2776 2777 /* function setup */ 2778 func_init.func_flgs = flags; 2779 func_init.pf_id = BP_FUNC(bp); 2780 func_init.func_id = FW_VF_HANDLE(vf->abs_vfid); 2781 func_init.fw_stat_map = vf->fw_stat_map; 2782 func_init.spq_map = vf->spq_map; 2783 func_init.spq_prod = 0; 2784 bnx2x_func_init(bp, &func_init); 2785 2786 /* Enable the vf */ 2787 bnx2x_vf_enable_access(bp, vf->abs_vfid); 2788 bnx2x_vf_enable_traffic(bp, vf); 2789 2790 /* queue protection table */ 2791 for_each_vfq(vf, i) 2792 bnx2x_vf_qtbl_set_q(bp, vf->abs_vfid, 2793 vfq_qzone_id(vf, vfq_get(vf, i)), true); 2794 2795 vf->state = VF_ENABLED; 2796 2797 /* update vf bulletin board */ 2798 bnx2x_post_vf_bulletin(bp, vf->index); 2799 2800 return 0; 2801 } 2802 2803 struct set_vf_state_cookie { 2804 struct bnx2x_virtf *vf; 2805 u8 state; 2806 }; 2807 2808 void bnx2x_set_vf_state(void *cookie) 2809 { 2810 struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie; 2811 2812 p->vf->state = p->state; 2813 } 2814 2815 /* VFOP close (teardown the queues, delete mcasts and close HW) */ 2816 static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf) 2817 { 2818 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 2819 struct bnx2x_vfop_args_qx *qx = &vfop->args.qx; 2820 enum bnx2x_vfop_close_state state = vfop->state; 2821 struct bnx2x_vfop_cmd cmd = { 2822 .done = bnx2x_vfop_close, 2823 .block = false, 2824 }; 2825 2826 if (vfop->rc < 0) 2827 goto op_err; 2828 2829 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 2830 2831 switch (state) { 2832 case BNX2X_VFOP_CLOSE_QUEUES: 2833 2834 if (++(qx->qid) < vf_rxq_count(vf)) { 2835 vfop->rc = bnx2x_vfop_qdown_cmd(bp, vf, &cmd, qx->qid); 2836 if (vfop->rc) 2837 goto op_err; 2838 return; 2839 } 2840 2841 /* remove multicasts */ 2842 vfop->state = BNX2X_VFOP_CLOSE_HW; 2843 vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false); 2844 if (vfop->rc) 2845 goto op_err; 2846 return; 2847 2848 case BNX2X_VFOP_CLOSE_HW: 2849 2850 /* disable the interrupts */ 2851 DP(BNX2X_MSG_IOV, "disabling igu\n"); 2852 bnx2x_vf_igu_disable(bp, vf); 2853 2854 /* disable the VF */ 2855 DP(BNX2X_MSG_IOV, "clearing qtbl\n"); 2856 bnx2x_vf_clr_qtbl(bp, vf); 2857 2858 goto op_done; 2859 default: 2860 bnx2x_vfop_default(state); 2861 } 2862 op_err: 2863 BNX2X_ERR("VF[%d] CLOSE error: rc %d\n", vf->abs_vfid, vfop->rc); 2864 op_done: 2865 2866 /* need to make sure there are no outstanding stats ramrods which may 2867 * cause the device to access the VF's stats buffer which it will free 2868 * as soon as we return from the close flow. 2869 */ 2870 { 2871 struct set_vf_state_cookie cookie; 2872 2873 cookie.vf = vf; 2874 cookie.state = VF_ACQUIRED; 2875 bnx2x_stats_safe_exec(bp, bnx2x_set_vf_state, &cookie); 2876 } 2877 2878 DP(BNX2X_MSG_IOV, "set state to acquired\n"); 2879 bnx2x_vfop_end(bp, vf, vfop); 2880 } 2881 2882 int bnx2x_vfop_close_cmd(struct bnx2x *bp, 2883 struct bnx2x_virtf *vf, 2884 struct bnx2x_vfop_cmd *cmd) 2885 { 2886 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 2887 if (vfop) { 2888 vfop->args.qx.qid = -1; /* loop */ 2889 bnx2x_vfop_opset(BNX2X_VFOP_CLOSE_QUEUES, 2890 bnx2x_vfop_close, cmd->done); 2891 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_close, 2892 cmd->block); 2893 } 2894 return -ENOMEM; 2895 } 2896 2897 /* VF release can be called either: 1. The VF was acquired but 2898 * not enabled 2. the vf was enabled or in the process of being 2899 * enabled 2900 */ 2901 static void bnx2x_vfop_release(struct bnx2x *bp, struct bnx2x_virtf *vf) 2902 { 2903 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 2904 struct bnx2x_vfop_cmd cmd = { 2905 .done = bnx2x_vfop_release, 2906 .block = false, 2907 }; 2908 2909 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc); 2910 2911 if (vfop->rc < 0) 2912 goto op_err; 2913 2914 DP(BNX2X_MSG_IOV, "VF[%d] STATE: %s\n", vf->abs_vfid, 2915 vf->state == VF_FREE ? "Free" : 2916 vf->state == VF_ACQUIRED ? "Acquired" : 2917 vf->state == VF_ENABLED ? "Enabled" : 2918 vf->state == VF_RESET ? "Reset" : 2919 "Unknown"); 2920 2921 switch (vf->state) { 2922 case VF_ENABLED: 2923 vfop->rc = bnx2x_vfop_close_cmd(bp, vf, &cmd); 2924 if (vfop->rc) 2925 goto op_err; 2926 return; 2927 2928 case VF_ACQUIRED: 2929 DP(BNX2X_MSG_IOV, "about to free resources\n"); 2930 bnx2x_vf_free_resc(bp, vf); 2931 DP(BNX2X_MSG_IOV, "vfop->rc %d\n", vfop->rc); 2932 goto op_done; 2933 2934 case VF_FREE: 2935 case VF_RESET: 2936 /* do nothing */ 2937 goto op_done; 2938 default: 2939 bnx2x_vfop_default(vf->state); 2940 } 2941 op_err: 2942 BNX2X_ERR("VF[%d] RELEASE error: rc %d\n", vf->abs_vfid, vfop->rc); 2943 op_done: 2944 bnx2x_vfop_end(bp, vf, vfop); 2945 } 2946 2947 static void bnx2x_vfop_rss(struct bnx2x *bp, struct bnx2x_virtf *vf) 2948 { 2949 struct bnx2x_vfop *vfop = bnx2x_vfop_cur(bp, vf); 2950 enum bnx2x_vfop_rss_state state; 2951 2952 if (!vfop) { 2953 BNX2X_ERR("vfop was null\n"); 2954 return; 2955 } 2956 2957 state = vfop->state; 2958 bnx2x_vfop_reset_wq(vf); 2959 2960 if (vfop->rc < 0) 2961 goto op_err; 2962 2963 DP(BNX2X_MSG_IOV, "vf[%d] STATE: %d\n", vf->abs_vfid, state); 2964 2965 switch (state) { 2966 case BNX2X_VFOP_RSS_CONFIG: 2967 /* next state */ 2968 vfop->state = BNX2X_VFOP_RSS_DONE; 2969 bnx2x_config_rss(bp, &vfop->op_p->rss); 2970 bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE); 2971 op_err: 2972 BNX2X_ERR("RSS error: rc %d\n", vfop->rc); 2973 op_done: 2974 case BNX2X_VFOP_RSS_DONE: 2975 bnx2x_vfop_end(bp, vf, vfop); 2976 return; 2977 default: 2978 bnx2x_vfop_default(state); 2979 } 2980 op_pending: 2981 return; 2982 } 2983 2984 int bnx2x_vfop_release_cmd(struct bnx2x *bp, 2985 struct bnx2x_virtf *vf, 2986 struct bnx2x_vfop_cmd *cmd) 2987 { 2988 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 2989 if (vfop) { 2990 bnx2x_vfop_opset(-1, /* use vf->state */ 2991 bnx2x_vfop_release, cmd->done); 2992 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_release, 2993 cmd->block); 2994 } 2995 return -ENOMEM; 2996 } 2997 2998 int bnx2x_vfop_rss_cmd(struct bnx2x *bp, 2999 struct bnx2x_virtf *vf, 3000 struct bnx2x_vfop_cmd *cmd) 3001 { 3002 struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf); 3003 3004 if (vfop) { 3005 bnx2x_vfop_opset(BNX2X_VFOP_RSS_CONFIG, bnx2x_vfop_rss, 3006 cmd->done); 3007 return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_rss, 3008 cmd->block); 3009 } 3010 return -ENOMEM; 3011 } 3012 3013 /* VF release ~ VF close + VF release-resources 3014 * Release is the ultimate SW shutdown and is called whenever an 3015 * irrecoverable error is encountered. 3016 */ 3017 void bnx2x_vf_release(struct bnx2x *bp, struct bnx2x_virtf *vf, bool block) 3018 { 3019 struct bnx2x_vfop_cmd cmd = { 3020 .done = NULL, 3021 .block = block, 3022 }; 3023 int rc; 3024 3025 DP(BNX2X_MSG_IOV, "PF releasing vf %d\n", vf->abs_vfid); 3026 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_RELEASE_VF); 3027 3028 rc = bnx2x_vfop_release_cmd(bp, vf, &cmd); 3029 if (rc) 3030 WARN(rc, 3031 "VF[%d] Failed to allocate resources for release op- rc=%d\n", 3032 vf->abs_vfid, rc); 3033 } 3034 3035 static inline void bnx2x_vf_get_sbdf(struct bnx2x *bp, 3036 struct bnx2x_virtf *vf, u32 *sbdf) 3037 { 3038 *sbdf = vf->devfn | (vf->bus << 8); 3039 } 3040 3041 static inline void bnx2x_vf_get_bars(struct bnx2x *bp, struct bnx2x_virtf *vf, 3042 struct bnx2x_vf_bar_info *bar_info) 3043 { 3044 int n; 3045 3046 bar_info->nr_bars = bp->vfdb->sriov.nres; 3047 for (n = 0; n < bar_info->nr_bars; n++) 3048 bar_info->bars[n] = vf->bars[n]; 3049 } 3050 3051 void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf, 3052 enum channel_tlvs tlv) 3053 { 3054 /* we don't lock the channel for unsupported tlvs */ 3055 if (!bnx2x_tlv_supported(tlv)) { 3056 BNX2X_ERR("attempting to lock with unsupported tlv. Aborting\n"); 3057 return; 3058 } 3059 3060 /* lock the channel */ 3061 mutex_lock(&vf->op_mutex); 3062 3063 /* record the locking op */ 3064 vf->op_current = tlv; 3065 3066 /* log the lock */ 3067 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel locked by %d\n", 3068 vf->abs_vfid, tlv); 3069 } 3070 3071 void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf, 3072 enum channel_tlvs expected_tlv) 3073 { 3074 enum channel_tlvs current_tlv; 3075 3076 if (!vf) { 3077 BNX2X_ERR("VF was %p\n", vf); 3078 return; 3079 } 3080 3081 current_tlv = vf->op_current; 3082 3083 /* we don't unlock the channel for unsupported tlvs */ 3084 if (!bnx2x_tlv_supported(expected_tlv)) 3085 return; 3086 3087 WARN(expected_tlv != vf->op_current, 3088 "lock mismatch: expected %d found %d", expected_tlv, 3089 vf->op_current); 3090 3091 /* record the locking op */ 3092 vf->op_current = CHANNEL_TLV_NONE; 3093 3094 /* lock the channel */ 3095 mutex_unlock(&vf->op_mutex); 3096 3097 /* log the unlock */ 3098 DP(BNX2X_MSG_IOV, "VF[%d]: vf pf channel unlocked by %d\n", 3099 vf->abs_vfid, vf->op_current); 3100 } 3101 3102 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param) 3103 { 3104 struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev)); 3105 3106 DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n", 3107 num_vfs_param, BNX2X_NR_VIRTFN(bp)); 3108 3109 /* HW channel is only operational when PF is up */ 3110 if (bp->state != BNX2X_STATE_OPEN) { 3111 BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n"); 3112 return -EINVAL; 3113 } 3114 3115 /* we are always bound by the total_vfs in the configuration space */ 3116 if (num_vfs_param > BNX2X_NR_VIRTFN(bp)) { 3117 BNX2X_ERR("truncating requested number of VFs (%d) down to maximum allowed (%d)\n", 3118 num_vfs_param, BNX2X_NR_VIRTFN(bp)); 3119 num_vfs_param = BNX2X_NR_VIRTFN(bp); 3120 } 3121 3122 bp->requested_nr_virtfn = num_vfs_param; 3123 if (num_vfs_param == 0) { 3124 pci_disable_sriov(dev); 3125 return 0; 3126 } else { 3127 return bnx2x_enable_sriov(bp); 3128 } 3129 } 3130 #define IGU_ENTRY_SIZE 4 3131 3132 int bnx2x_enable_sriov(struct bnx2x *bp) 3133 { 3134 int rc = 0, req_vfs = bp->requested_nr_virtfn; 3135 int vf_idx, sb_idx, vfq_idx, qcount, first_vf; 3136 u32 igu_entry, address; 3137 u16 num_vf_queues; 3138 3139 if (req_vfs == 0) 3140 return 0; 3141 3142 first_vf = bp->vfdb->sriov.first_vf_in_pf; 3143 3144 /* statically distribute vf sb pool between VFs */ 3145 num_vf_queues = min_t(u16, BNX2X_VF_MAX_QUEUES, 3146 BP_VFDB(bp)->vf_sbs_pool / req_vfs); 3147 3148 /* zero previous values learned from igu cam */ 3149 for (vf_idx = 0; vf_idx < req_vfs; vf_idx++) { 3150 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx); 3151 3152 vf->sb_count = 0; 3153 vf_sb_count(BP_VF(bp, vf_idx)) = 0; 3154 } 3155 bp->vfdb->vf_sbs_pool = 0; 3156 3157 /* prepare IGU cam */ 3158 sb_idx = BP_VFDB(bp)->first_vf_igu_entry; 3159 address = IGU_REG_MAPPING_MEMORY + sb_idx * IGU_ENTRY_SIZE; 3160 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) { 3161 for (vfq_idx = 0; vfq_idx < num_vf_queues; vfq_idx++) { 3162 igu_entry = vf_idx << IGU_REG_MAPPING_MEMORY_FID_SHIFT | 3163 vfq_idx << IGU_REG_MAPPING_MEMORY_VECTOR_SHIFT | 3164 IGU_REG_MAPPING_MEMORY_VALID; 3165 DP(BNX2X_MSG_IOV, "assigning sb %d to vf %d\n", 3166 sb_idx, vf_idx); 3167 REG_WR(bp, address, igu_entry); 3168 sb_idx++; 3169 address += IGU_ENTRY_SIZE; 3170 } 3171 } 3172 3173 /* Reinitialize vf database according to igu cam */ 3174 bnx2x_get_vf_igu_cam_info(bp); 3175 3176 DP(BNX2X_MSG_IOV, "vf_sbs_pool %d, num_vf_queues %d\n", 3177 BP_VFDB(bp)->vf_sbs_pool, num_vf_queues); 3178 3179 qcount = 0; 3180 for_each_vf(bp, vf_idx) { 3181 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx); 3182 3183 /* set local queue arrays */ 3184 vf->vfqs = &bp->vfdb->vfqs[qcount]; 3185 qcount += vf_sb_count(vf); 3186 } 3187 3188 /* prepare msix vectors in VF configuration space */ 3189 for (vf_idx = first_vf; vf_idx < first_vf + req_vfs; vf_idx++) { 3190 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx)); 3191 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL, 3192 num_vf_queues); 3193 } 3194 bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); 3195 3196 /* enable sriov. This will probe all the VFs, and consequentially cause 3197 * the "acquire" messages to appear on the VF PF channel. 3198 */ 3199 DP(BNX2X_MSG_IOV, "about to call enable sriov\n"); 3200 pci_disable_sriov(bp->pdev); 3201 rc = pci_enable_sriov(bp->pdev, req_vfs); 3202 if (rc) { 3203 BNX2X_ERR("pci_enable_sriov failed with %d\n", rc); 3204 return rc; 3205 } 3206 DP(BNX2X_MSG_IOV, "sriov enabled (%d vfs)\n", req_vfs); 3207 return req_vfs; 3208 } 3209 3210 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp) 3211 { 3212 int vfidx; 3213 struct pf_vf_bulletin_content *bulletin; 3214 3215 DP(BNX2X_MSG_IOV, "configuring vlan for VFs from sp-task\n"); 3216 for_each_vf(bp, vfidx) { 3217 bulletin = BP_VF_BULLETIN(bp, vfidx); 3218 if (BP_VF(bp, vfidx)->cfg_flags & VF_CFG_VLAN) 3219 bnx2x_set_vf_vlan(bp->dev, vfidx, bulletin->vlan, 0); 3220 } 3221 } 3222 3223 void bnx2x_disable_sriov(struct bnx2x *bp) 3224 { 3225 pci_disable_sriov(bp->pdev); 3226 } 3227 3228 int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx, struct bnx2x_virtf **vf, 3229 struct pf_vf_bulletin_content **bulletin) 3230 { 3231 if (bp->state != BNX2X_STATE_OPEN) { 3232 BNX2X_ERR("vf ndo called though PF is down\n"); 3233 return -EINVAL; 3234 } 3235 3236 if (!IS_SRIOV(bp)) { 3237 BNX2X_ERR("vf ndo called though sriov is disabled\n"); 3238 return -EINVAL; 3239 } 3240 3241 if (vfidx >= BNX2X_NR_VIRTFN(bp)) { 3242 BNX2X_ERR("vf ndo called for uninitialized VF. vfidx was %d BNX2X_NR_VIRTFN was %d\n", 3243 vfidx, BNX2X_NR_VIRTFN(bp)); 3244 return -EINVAL; 3245 } 3246 3247 /* init members */ 3248 *vf = BP_VF(bp, vfidx); 3249 *bulletin = BP_VF_BULLETIN(bp, vfidx); 3250 3251 if (!*vf) { 3252 BNX2X_ERR("vf ndo called but vf struct is null. vfidx was %d\n", 3253 vfidx); 3254 return -EINVAL; 3255 } 3256 3257 if (!(*vf)->vfqs) { 3258 BNX2X_ERR("vf ndo called but vfqs struct is null. Was ndo invoked before dynamically enabling SR-IOV? vfidx was %d\n", 3259 vfidx); 3260 return -EINVAL; 3261 } 3262 3263 if (!*bulletin) { 3264 BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n", 3265 vfidx); 3266 return -EINVAL; 3267 } 3268 3269 return 0; 3270 } 3271 3272 int bnx2x_get_vf_config(struct net_device *dev, int vfidx, 3273 struct ifla_vf_info *ivi) 3274 { 3275 struct bnx2x *bp = netdev_priv(dev); 3276 struct bnx2x_virtf *vf = NULL; 3277 struct pf_vf_bulletin_content *bulletin = NULL; 3278 struct bnx2x_vlan_mac_obj *mac_obj; 3279 struct bnx2x_vlan_mac_obj *vlan_obj; 3280 int rc; 3281 3282 /* sanity and init */ 3283 rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin); 3284 if (rc) 3285 return rc; 3286 mac_obj = &bnx2x_leading_vfq(vf, mac_obj); 3287 vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj); 3288 if (!mac_obj || !vlan_obj) { 3289 BNX2X_ERR("VF partially initialized\n"); 3290 return -EINVAL; 3291 } 3292 3293 ivi->vf = vfidx; 3294 ivi->qos = 0; 3295 ivi->tx_rate = 10000; /* always 10G. TBA take from link struct */ 3296 ivi->spoofchk = 1; /*always enabled */ 3297 if (vf->state == VF_ENABLED) { 3298 /* mac and vlan are in vlan_mac objects */ 3299 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj))) 3300 mac_obj->get_n_elements(bp, mac_obj, 1, (u8 *)&ivi->mac, 3301 0, ETH_ALEN); 3302 if (validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, vlan_obj))) 3303 vlan_obj->get_n_elements(bp, vlan_obj, 1, 3304 (u8 *)&ivi->vlan, 0, 3305 VLAN_HLEN); 3306 } else { 3307 /* mac */ 3308 if (bulletin->valid_bitmap & (1 << MAC_ADDR_VALID)) 3309 /* mac configured by ndo so its in bulletin board */ 3310 memcpy(&ivi->mac, bulletin->mac, ETH_ALEN); 3311 else 3312 /* function has not been loaded yet. Show mac as 0s */ 3313 memset(&ivi->mac, 0, ETH_ALEN); 3314 3315 /* vlan */ 3316 if (bulletin->valid_bitmap & (1 << VLAN_VALID)) 3317 /* vlan configured by ndo so its in bulletin board */ 3318 memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN); 3319 else 3320 /* function has not been loaded yet. Show vlans as 0s */ 3321 memset(&ivi->vlan, 0, VLAN_HLEN); 3322 } 3323 3324 return 0; 3325 } 3326 3327 /* New mac for VF. Consider these cases: 3328 * 1. VF hasn't been acquired yet - save the mac in local bulletin board and 3329 * supply at acquire. 3330 * 2. VF has already been acquired but has not yet initialized - store in local 3331 * bulletin board. mac will be posted on VF bulletin board after VF init. VF 3332 * will configure this mac when it is ready. 3333 * 3. VF has already initialized but has not yet setup a queue - post the new 3334 * mac on VF's bulletin board right now. VF will configure this mac when it 3335 * is ready. 3336 * 4. VF has already set a queue - delete any macs already configured for this 3337 * queue and manually config the new mac. 3338 * In any event, once this function has been called refuse any attempts by the 3339 * VF to configure any mac for itself except for this mac. In case of a race 3340 * where the VF fails to see the new post on its bulletin board before sending a 3341 * mac configuration request, the PF will simply fail the request and VF can try 3342 * again after consulting its bulletin board. 3343 */ 3344 int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac) 3345 { 3346 struct bnx2x *bp = netdev_priv(dev); 3347 int rc, q_logical_state; 3348 struct bnx2x_virtf *vf = NULL; 3349 struct pf_vf_bulletin_content *bulletin = NULL; 3350 3351 /* sanity and init */ 3352 rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin); 3353 if (rc) 3354 return rc; 3355 if (!is_valid_ether_addr(mac)) { 3356 BNX2X_ERR("mac address invalid\n"); 3357 return -EINVAL; 3358 } 3359 3360 /* update PF's copy of the VF's bulletin. Will no longer accept mac 3361 * configuration requests from vf unless match this mac 3362 */ 3363 bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID; 3364 memcpy(bulletin->mac, mac, ETH_ALEN); 3365 3366 /* Post update on VF's bulletin board */ 3367 rc = bnx2x_post_vf_bulletin(bp, vfidx); 3368 if (rc) { 3369 BNX2X_ERR("failed to update VF[%d] bulletin\n", vfidx); 3370 return rc; 3371 } 3372 3373 q_logical_state = 3374 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)); 3375 if (vf->state == VF_ENABLED && 3376 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) { 3377 /* configure the mac in device on this vf's queue */ 3378 unsigned long ramrod_flags = 0; 3379 struct bnx2x_vlan_mac_obj *mac_obj = 3380 &bnx2x_leading_vfq(vf, mac_obj); 3381 3382 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj)); 3383 if (rc) 3384 return rc; 3385 3386 /* must lock vfpf channel to protect against vf flows */ 3387 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); 3388 3389 /* remove existing eth macs */ 3390 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true); 3391 if (rc) { 3392 BNX2X_ERR("failed to delete eth macs\n"); 3393 return -EINVAL; 3394 } 3395 3396 /* remove existing uc list macs */ 3397 rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true); 3398 if (rc) { 3399 BNX2X_ERR("failed to delete uc_list macs\n"); 3400 return -EINVAL; 3401 } 3402 3403 /* configure the new mac to device */ 3404 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); 3405 bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true, 3406 BNX2X_ETH_MAC, &ramrod_flags); 3407 3408 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); 3409 } 3410 3411 return 0; 3412 } 3413 3414 int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos) 3415 { 3416 struct bnx2x *bp = netdev_priv(dev); 3417 int rc, q_logical_state; 3418 struct bnx2x_virtf *vf = NULL; 3419 struct pf_vf_bulletin_content *bulletin = NULL; 3420 3421 /* sanity and init */ 3422 rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin); 3423 if (rc) 3424 return rc; 3425 3426 if (vlan > 4095) { 3427 BNX2X_ERR("illegal vlan value %d\n", vlan); 3428 return -EINVAL; 3429 } 3430 3431 DP(BNX2X_MSG_IOV, "configuring VF %d with VLAN %d qos %d\n", 3432 vfidx, vlan, 0); 3433 3434 /* update PF's copy of the VF's bulletin. No point in posting the vlan 3435 * to the VF since it doesn't have anything to do with it. But it useful 3436 * to store it here in case the VF is not up yet and we can only 3437 * configure the vlan later when it does. 3438 */ 3439 bulletin->valid_bitmap |= 1 << VLAN_VALID; 3440 bulletin->vlan = vlan; 3441 3442 /* is vf initialized and queue set up? */ 3443 q_logical_state = 3444 bnx2x_get_q_logical_state(bp, &bnx2x_leading_vfq(vf, sp_obj)); 3445 if (vf->state == VF_ENABLED && 3446 q_logical_state == BNX2X_Q_LOGICAL_STATE_ACTIVE) { 3447 /* configure the vlan in device on this vf's queue */ 3448 unsigned long ramrod_flags = 0; 3449 unsigned long vlan_mac_flags = 0; 3450 struct bnx2x_vlan_mac_obj *vlan_obj = 3451 &bnx2x_leading_vfq(vf, vlan_obj); 3452 struct bnx2x_vlan_mac_ramrod_params ramrod_param; 3453 struct bnx2x_queue_state_params q_params = {NULL}; 3454 struct bnx2x_queue_update_params *update_params; 3455 3456 rc = validate_vlan_mac(bp, &bnx2x_leading_vfq(vf, mac_obj)); 3457 if (rc) 3458 return rc; 3459 memset(&ramrod_param, 0, sizeof(ramrod_param)); 3460 3461 /* must lock vfpf channel to protect against vf flows */ 3462 bnx2x_lock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN); 3463 3464 /* remove existing vlans */ 3465 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); 3466 rc = vlan_obj->delete_all(bp, vlan_obj, &vlan_mac_flags, 3467 &ramrod_flags); 3468 if (rc) { 3469 BNX2X_ERR("failed to delete vlans\n"); 3470 return -EINVAL; 3471 } 3472 3473 /* send queue update ramrod to configure default vlan and silent 3474 * vlan removal 3475 */ 3476 __set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags); 3477 q_params.cmd = BNX2X_Q_CMD_UPDATE; 3478 q_params.q_obj = &bnx2x_leading_vfq(vf, sp_obj); 3479 update_params = &q_params.params.update; 3480 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG, 3481 &update_params->update_flags); 3482 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG, 3483 &update_params->update_flags); 3484 3485 if (vlan == 0) { 3486 /* if vlan is 0 then we want to leave the VF traffic 3487 * untagged, and leave the incoming traffic untouched 3488 * (i.e. do not remove any vlan tags). 3489 */ 3490 __clear_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN, 3491 &update_params->update_flags); 3492 __clear_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM, 3493 &update_params->update_flags); 3494 } else { 3495 /* configure the new vlan to device */ 3496 __set_bit(RAMROD_COMP_WAIT, &ramrod_flags); 3497 ramrod_param.vlan_mac_obj = vlan_obj; 3498 ramrod_param.ramrod_flags = ramrod_flags; 3499 ramrod_param.user_req.u.vlan.vlan = vlan; 3500 ramrod_param.user_req.cmd = BNX2X_VLAN_MAC_ADD; 3501 rc = bnx2x_config_vlan_mac(bp, &ramrod_param); 3502 if (rc) { 3503 BNX2X_ERR("failed to configure vlan\n"); 3504 return -EINVAL; 3505 } 3506 3507 /* configure default vlan to vf queue and set silent 3508 * vlan removal (the vf remains unaware of this vlan). 3509 */ 3510 update_params = &q_params.params.update; 3511 __set_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN, 3512 &update_params->update_flags); 3513 __set_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM, 3514 &update_params->update_flags); 3515 update_params->def_vlan = vlan; 3516 } 3517 3518 /* Update the Queue state */ 3519 rc = bnx2x_queue_state_change(bp, &q_params); 3520 if (rc) { 3521 BNX2X_ERR("Failed to configure default VLAN\n"); 3522 return rc; 3523 } 3524 3525 /* clear the flag indicating that this VF needs its vlan 3526 * (will only be set if the HV configured th Vlan before vf was 3527 * and we were called because the VF came up later 3528 */ 3529 vf->cfg_flags &= ~VF_CFG_VLAN; 3530 3531 bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN); 3532 } 3533 return 0; 3534 } 3535 3536 /* crc is the first field in the bulletin board. Compute the crc over the 3537 * entire bulletin board excluding the crc field itself. Use the length field 3538 * as the Bulletin Board was posted by a PF with possibly a different version 3539 * from the vf which will sample it. Therefore, the length is computed by the 3540 * PF and the used blindly by the VF. 3541 */ 3542 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp, 3543 struct pf_vf_bulletin_content *bulletin) 3544 { 3545 return crc32(BULLETIN_CRC_SEED, 3546 ((u8 *)bulletin) + sizeof(bulletin->crc), 3547 bulletin->length - sizeof(bulletin->crc)); 3548 } 3549 3550 /* Check for new posts on the bulletin board */ 3551 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp) 3552 { 3553 struct pf_vf_bulletin_content bulletin = bp->pf2vf_bulletin->content; 3554 int attempts; 3555 3556 /* bulletin board hasn't changed since last sample */ 3557 if (bp->old_bulletin.version == bulletin.version) 3558 return PFVF_BULLETIN_UNCHANGED; 3559 3560 /* validate crc of new bulletin board */ 3561 if (bp->old_bulletin.version != bp->pf2vf_bulletin->content.version) { 3562 /* sampling structure in mid post may result with corrupted data 3563 * validate crc to ensure coherency. 3564 */ 3565 for (attempts = 0; attempts < BULLETIN_ATTEMPTS; attempts++) { 3566 bulletin = bp->pf2vf_bulletin->content; 3567 if (bulletin.crc == bnx2x_crc_vf_bulletin(bp, 3568 &bulletin)) 3569 break; 3570 BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n", 3571 bulletin.crc, 3572 bnx2x_crc_vf_bulletin(bp, &bulletin)); 3573 } 3574 if (attempts >= BULLETIN_ATTEMPTS) { 3575 BNX2X_ERR("pf to vf bulletin board crc was wrong %d consecutive times. Aborting\n", 3576 attempts); 3577 return PFVF_BULLETIN_CRC_ERR; 3578 } 3579 } 3580 3581 /* the mac address in bulletin board is valid and is new */ 3582 if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID && 3583 memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) { 3584 /* update new mac to net device */ 3585 memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN); 3586 } 3587 3588 /* the vlan in bulletin board is valid and is new */ 3589 if (bulletin.valid_bitmap & 1 << VLAN_VALID) 3590 memcpy(&bulletin.vlan, &bp->old_bulletin.vlan, VLAN_HLEN); 3591 3592 /* copy new bulletin board to bp */ 3593 bp->old_bulletin = bulletin; 3594 3595 return PFVF_BULLETIN_UPDATED; 3596 } 3597 3598 void bnx2x_timer_sriov(struct bnx2x *bp) 3599 { 3600 bnx2x_sample_bulletin(bp); 3601 3602 /* if channel is down we need to self destruct */ 3603 if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) { 3604 smp_mb__before_clear_bit(); 3605 set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN, 3606 &bp->sp_rtnl_state); 3607 smp_mb__after_clear_bit(); 3608 schedule_delayed_work(&bp->sp_rtnl_task, 0); 3609 } 3610 } 3611 3612 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp) 3613 { 3614 /* vf doorbells are embedded within the regview */ 3615 return bp->regview + PXP_VF_ADDR_DB_START; 3616 } 3617 3618 int bnx2x_vf_pci_alloc(struct bnx2x *bp) 3619 { 3620 mutex_init(&bp->vf2pf_mutex); 3621 3622 /* allocate vf2pf mailbox for vf to pf channel */ 3623 BNX2X_PCI_ALLOC(bp->vf2pf_mbox, &bp->vf2pf_mbox_mapping, 3624 sizeof(struct bnx2x_vf_mbx_msg)); 3625 3626 /* allocate pf 2 vf bulletin board */ 3627 BNX2X_PCI_ALLOC(bp->pf2vf_bulletin, &bp->pf2vf_bulletin_mapping, 3628 sizeof(union pf_vf_bulletin)); 3629 3630 return 0; 3631 3632 alloc_mem_err: 3633 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping, 3634 sizeof(struct bnx2x_vf_mbx_msg)); 3635 BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping, 3636 sizeof(union pf_vf_bulletin)); 3637 return -ENOMEM; 3638 } 3639 3640 int bnx2x_open_epilog(struct bnx2x *bp) 3641 { 3642 /* Enable sriov via delayed work. This must be done via delayed work 3643 * because it causes the probe of the vf devices to be run, which invoke 3644 * register_netdevice which must have rtnl lock taken. As we are holding 3645 * the lock right now, that could only work if the probe would not take 3646 * the lock. However, as the probe of the vf may be called from other 3647 * contexts as well (such as passthrough to vm fails) it can't assume 3648 * the lock is being held for it. Using delayed work here allows the 3649 * probe code to simply take the lock (i.e. wait for it to be released 3650 * if it is being held). We only want to do this if the number of VFs 3651 * was set before PF driver was loaded. 3652 */ 3653 if (IS_SRIOV(bp) && BNX2X_NR_VIRTFN(bp)) { 3654 smp_mb__before_clear_bit(); 3655 set_bit(BNX2X_SP_RTNL_ENABLE_SRIOV, &bp->sp_rtnl_state); 3656 smp_mb__after_clear_bit(); 3657 schedule_delayed_work(&bp->sp_rtnl_task, 0); 3658 } 3659 3660 return 0; 3661 } 3662 3663 void bnx2x_iov_channel_down(struct bnx2x *bp) 3664 { 3665 int vf_idx; 3666 struct pf_vf_bulletin_content *bulletin; 3667 3668 if (!IS_SRIOV(bp)) 3669 return; 3670 3671 for_each_vf(bp, vf_idx) { 3672 /* locate this VFs bulletin board and update the channel down 3673 * bit 3674 */ 3675 bulletin = BP_VF_BULLETIN(bp, vf_idx); 3676 bulletin->valid_bitmap |= 1 << CHANNEL_DOWN; 3677 3678 /* update vf bulletin board */ 3679 bnx2x_post_vf_bulletin(bp, vf_idx); 3680 } 3681 } 3682