1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2018, Intel Corporation. */ 3 4 #include "ice.h" 5 #include "ice_base.h" 6 #include "ice_flow.h" 7 #include "ice_lib.h" 8 #include "ice_fltr.h" 9 #include "ice_dcb_lib.h" 10 #include "ice_type.h" 11 #include "ice_vsi_vlan_ops.h" 12 13 /** 14 * ice_vsi_type_str - maps VSI type enum to string equivalents 15 * @vsi_type: VSI type enum 16 */ 17 const char *ice_vsi_type_str(enum ice_vsi_type vsi_type) 18 { 19 switch (vsi_type) { 20 case ICE_VSI_PF: 21 return "ICE_VSI_PF"; 22 case ICE_VSI_VF: 23 return "ICE_VSI_VF"; 24 case ICE_VSI_SF: 25 return "ICE_VSI_SF"; 26 case ICE_VSI_CTRL: 27 return "ICE_VSI_CTRL"; 28 case ICE_VSI_CHNL: 29 return "ICE_VSI_CHNL"; 30 case ICE_VSI_LB: 31 return "ICE_VSI_LB"; 32 default: 33 return "unknown"; 34 } 35 } 36 37 /** 38 * ice_vsi_ctrl_all_rx_rings - Start or stop a VSI's Rx rings 39 * @vsi: the VSI being configured 40 * @ena: start or stop the Rx rings 41 * 42 * First enable/disable all of the Rx rings, flush any remaining writes, and 43 * then verify that they have all been enabled/disabled successfully. This will 44 * let all of the register writes complete when enabling/disabling the Rx rings 45 * before waiting for the change in hardware to complete. 46 */ 47 static int ice_vsi_ctrl_all_rx_rings(struct ice_vsi *vsi, bool ena) 48 { 49 int ret = 0; 50 u16 i; 51 52 ice_for_each_rxq(vsi, i) 53 ice_vsi_ctrl_one_rx_ring(vsi, ena, i, false); 54 55 ice_flush(&vsi->back->hw); 56 57 ice_for_each_rxq(vsi, i) { 58 ret = ice_vsi_wait_one_rx_ring(vsi, ena, i); 59 if (ret) 60 break; 61 } 62 63 return ret; 64 } 65 66 /** 67 * ice_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the VSI 68 * @vsi: VSI pointer 69 * 70 * On error: returns error code (negative) 71 * On success: returns 0 72 */ 73 static int ice_vsi_alloc_arrays(struct ice_vsi *vsi) 74 { 75 struct ice_pf *pf = vsi->back; 76 struct device *dev; 77 78 dev = ice_pf_to_dev(pf); 79 if (vsi->type == ICE_VSI_CHNL) 80 return 0; 81 82 /* allocate memory for both Tx and Rx ring pointers */ 83 vsi->tx_rings = devm_kcalloc(dev, vsi->alloc_txq, 84 sizeof(*vsi->tx_rings), GFP_KERNEL); 85 if (!vsi->tx_rings) 86 return -ENOMEM; 87 88 vsi->rx_rings = devm_kcalloc(dev, vsi->alloc_rxq, 89 sizeof(*vsi->rx_rings), GFP_KERNEL); 90 if (!vsi->rx_rings) 91 goto err_rings; 92 93 /* txq_map needs to have enough space to track both Tx (stack) rings 94 * and XDP rings; at this point vsi->num_xdp_txq might not be set, 95 * so use num_possible_cpus() as we want to always provide XDP ring 96 * per CPU, regardless of queue count settings from user that might 97 * have come from ethtool's set_channels() callback; 98 */ 99 vsi->txq_map = devm_kcalloc(dev, (vsi->alloc_txq + num_possible_cpus()), 100 sizeof(*vsi->txq_map), GFP_KERNEL); 101 102 if (!vsi->txq_map) 103 goto err_txq_map; 104 105 vsi->rxq_map = devm_kcalloc(dev, vsi->alloc_rxq, 106 sizeof(*vsi->rxq_map), GFP_KERNEL); 107 if (!vsi->rxq_map) 108 goto err_rxq_map; 109 110 /* allocate memory for q_vector pointers */ 111 vsi->q_vectors = devm_kcalloc(dev, vsi->num_q_vectors, 112 sizeof(*vsi->q_vectors), GFP_KERNEL); 113 if (!vsi->q_vectors) 114 goto err_vectors; 115 116 return 0; 117 118 err_vectors: 119 devm_kfree(dev, vsi->rxq_map); 120 err_rxq_map: 121 devm_kfree(dev, vsi->txq_map); 122 err_txq_map: 123 devm_kfree(dev, vsi->rx_rings); 124 err_rings: 125 devm_kfree(dev, vsi->tx_rings); 126 return -ENOMEM; 127 } 128 129 /** 130 * ice_vsi_set_num_desc - Set number of descriptors for queues on this VSI 131 * @vsi: the VSI being configured 132 */ 133 static void ice_vsi_set_num_desc(struct ice_vsi *vsi) 134 { 135 switch (vsi->type) { 136 case ICE_VSI_PF: 137 case ICE_VSI_SF: 138 case ICE_VSI_CTRL: 139 case ICE_VSI_LB: 140 /* a user could change the values of num_[tr]x_desc using 141 * ethtool -G so we should keep those values instead of 142 * overwriting them with the defaults. 143 */ 144 if (!vsi->num_rx_desc) 145 vsi->num_rx_desc = ICE_DFLT_NUM_RX_DESC; 146 if (!vsi->num_tx_desc) 147 vsi->num_tx_desc = ICE_DFLT_NUM_TX_DESC; 148 break; 149 default: 150 dev_dbg(ice_pf_to_dev(vsi->back), "Not setting number of Tx/Rx descriptors for VSI type %d\n", 151 vsi->type); 152 break; 153 } 154 } 155 156 static u16 ice_get_rxq_count(struct ice_pf *pf) 157 { 158 return min(ice_get_avail_rxq_count(pf), 159 netif_get_num_default_rss_queues()); 160 } 161 162 static u16 ice_get_txq_count(struct ice_pf *pf) 163 { 164 return min(ice_get_avail_txq_count(pf), 165 netif_get_num_default_rss_queues()); 166 } 167 168 /** 169 * ice_vsi_set_num_qs - Set number of queues, descriptors and vectors for a VSI 170 * @vsi: the VSI being configured 171 * 172 * Return 0 on success and a negative value on error 173 */ 174 static void ice_vsi_set_num_qs(struct ice_vsi *vsi) 175 { 176 enum ice_vsi_type vsi_type = vsi->type; 177 struct ice_pf *pf = vsi->back; 178 struct ice_vf *vf = vsi->vf; 179 180 if (WARN_ON(vsi_type == ICE_VSI_VF && !vf)) 181 return; 182 183 switch (vsi_type) { 184 case ICE_VSI_PF: 185 if (vsi->req_txq) { 186 vsi->alloc_txq = vsi->req_txq; 187 vsi->num_txq = vsi->req_txq; 188 } else { 189 vsi->alloc_txq = ice_get_txq_count(pf); 190 } 191 192 pf->num_lan_tx = vsi->alloc_txq; 193 194 /* only 1 Rx queue unless RSS is enabled */ 195 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 196 vsi->alloc_rxq = 1; 197 } else { 198 if (vsi->req_rxq) { 199 vsi->alloc_rxq = vsi->req_rxq; 200 vsi->num_rxq = vsi->req_rxq; 201 } else { 202 vsi->alloc_rxq = ice_get_rxq_count(pf); 203 } 204 } 205 206 pf->num_lan_rx = vsi->alloc_rxq; 207 208 vsi->num_q_vectors = max(vsi->alloc_rxq, vsi->alloc_txq); 209 break; 210 case ICE_VSI_SF: 211 vsi->alloc_txq = 1; 212 vsi->alloc_rxq = 1; 213 vsi->num_q_vectors = 1; 214 vsi->irq_dyn_alloc = true; 215 break; 216 case ICE_VSI_VF: 217 if (vf->num_req_qs) 218 vf->num_vf_qs = vf->num_req_qs; 219 vsi->alloc_txq = vf->num_vf_qs; 220 vsi->alloc_rxq = vf->num_vf_qs; 221 /* pf->vfs.num_msix_per includes (VF miscellaneous vector + 222 * data queue interrupts). Since vsi->num_q_vectors is number 223 * of queues vectors, subtract 1 (ICE_NONQ_VECS_VF) from the 224 * original vector count 225 */ 226 vsi->num_q_vectors = vf->num_msix - ICE_NONQ_VECS_VF; 227 break; 228 case ICE_VSI_CTRL: 229 vsi->alloc_txq = 1; 230 vsi->alloc_rxq = 1; 231 vsi->num_q_vectors = 1; 232 break; 233 case ICE_VSI_CHNL: 234 vsi->alloc_txq = 0; 235 vsi->alloc_rxq = 0; 236 break; 237 case ICE_VSI_LB: 238 vsi->alloc_txq = 1; 239 vsi->alloc_rxq = 1; 240 /* A dummy q_vector, no actual IRQ. */ 241 vsi->num_q_vectors = 1; 242 break; 243 default: 244 dev_warn(ice_pf_to_dev(pf), "Unknown VSI type %d\n", vsi_type); 245 break; 246 } 247 248 ice_vsi_set_num_desc(vsi); 249 } 250 251 /** 252 * ice_get_free_slot - get the next non-NULL location index in array 253 * @array: array to search 254 * @size: size of the array 255 * @curr: last known occupied index to be used as a search hint 256 * 257 * void * is being used to keep the functionality generic. This lets us use this 258 * function on any array of pointers. 259 */ 260 static int ice_get_free_slot(void *array, int size, int curr) 261 { 262 int **tmp_array = (int **)array; 263 int next; 264 265 if (curr < (size - 1) && !tmp_array[curr + 1]) { 266 next = curr + 1; 267 } else { 268 int i = 0; 269 270 while ((i < size) && (tmp_array[i])) 271 i++; 272 if (i == size) 273 next = ICE_NO_VSI; 274 else 275 next = i; 276 } 277 return next; 278 } 279 280 /** 281 * ice_vsi_delete_from_hw - delete a VSI from the switch 282 * @vsi: pointer to VSI being removed 283 */ 284 static void ice_vsi_delete_from_hw(struct ice_vsi *vsi) 285 { 286 struct ice_pf *pf = vsi->back; 287 struct ice_vsi_ctx *ctxt; 288 int status; 289 290 ice_fltr_remove_all(vsi); 291 ctxt = kzalloc_obj(*ctxt); 292 if (!ctxt) 293 return; 294 295 if (vsi->type == ICE_VSI_VF) 296 ctxt->vf_num = vsi->vf->vf_id; 297 ctxt->vsi_num = vsi->vsi_num; 298 299 memcpy(&ctxt->info, &vsi->info, sizeof(ctxt->info)); 300 301 status = ice_free_vsi(&pf->hw, vsi->idx, ctxt, false, NULL); 302 if (status) 303 dev_err(ice_pf_to_dev(pf), "Failed to delete VSI %i in FW - error: %d\n", 304 vsi->vsi_num, status); 305 306 kfree(ctxt); 307 } 308 309 /** 310 * ice_vsi_free_arrays - De-allocate queue and vector pointer arrays for the VSI 311 * @vsi: pointer to VSI being cleared 312 */ 313 static void ice_vsi_free_arrays(struct ice_vsi *vsi) 314 { 315 struct ice_pf *pf = vsi->back; 316 struct device *dev; 317 318 dev = ice_pf_to_dev(pf); 319 320 /* free the ring and vector containers */ 321 devm_kfree(dev, vsi->q_vectors); 322 vsi->q_vectors = NULL; 323 devm_kfree(dev, vsi->tx_rings); 324 vsi->tx_rings = NULL; 325 devm_kfree(dev, vsi->rx_rings); 326 vsi->rx_rings = NULL; 327 devm_kfree(dev, vsi->txq_map); 328 vsi->txq_map = NULL; 329 devm_kfree(dev, vsi->rxq_map); 330 vsi->rxq_map = NULL; 331 } 332 333 /** 334 * ice_vsi_free_stats - Free the ring statistics structures 335 * @vsi: VSI pointer 336 */ 337 static void ice_vsi_free_stats(struct ice_vsi *vsi) 338 { 339 struct ice_vsi_stats *vsi_stat; 340 struct ice_pf *pf = vsi->back; 341 int i; 342 343 if (vsi->type == ICE_VSI_CHNL) 344 return; 345 if (!pf->vsi_stats) 346 return; 347 348 vsi_stat = pf->vsi_stats[vsi->idx]; 349 if (!vsi_stat) 350 return; 351 352 ice_for_each_alloc_txq(vsi, i) { 353 if (vsi_stat->tx_ring_stats[i]) { 354 kfree_rcu(vsi_stat->tx_ring_stats[i], rcu); 355 WRITE_ONCE(vsi_stat->tx_ring_stats[i], NULL); 356 } 357 } 358 359 ice_for_each_alloc_rxq(vsi, i) { 360 if (vsi_stat->rx_ring_stats[i]) { 361 kfree_rcu(vsi_stat->rx_ring_stats[i], rcu); 362 WRITE_ONCE(vsi_stat->rx_ring_stats[i], NULL); 363 } 364 } 365 366 kfree(vsi_stat->tx_ring_stats); 367 kfree(vsi_stat->rx_ring_stats); 368 kfree(vsi_stat); 369 pf->vsi_stats[vsi->idx] = NULL; 370 } 371 372 /** 373 * ice_vsi_alloc_ring_stats - Allocates Tx and Rx ring stats for the VSI 374 * @vsi: VSI which is having stats allocated 375 */ 376 static int ice_vsi_alloc_ring_stats(struct ice_vsi *vsi) 377 { 378 struct ice_ring_stats **tx_ring_stats; 379 struct ice_ring_stats **rx_ring_stats; 380 struct ice_vsi_stats *vsi_stats; 381 struct ice_pf *pf = vsi->back; 382 u16 i; 383 384 vsi_stats = pf->vsi_stats[vsi->idx]; 385 tx_ring_stats = vsi_stats->tx_ring_stats; 386 rx_ring_stats = vsi_stats->rx_ring_stats; 387 388 /* Allocate Tx ring stats */ 389 ice_for_each_alloc_txq(vsi, i) { 390 struct ice_ring_stats *ring_stats; 391 struct ice_tx_ring *ring; 392 393 ring = vsi->tx_rings[i]; 394 ring_stats = tx_ring_stats[i]; 395 396 if (!ring_stats) { 397 ring_stats = kzalloc_obj(*ring_stats); 398 if (!ring_stats) 399 goto err_out; 400 401 u64_stats_init(&ring_stats->syncp); 402 403 WRITE_ONCE(tx_ring_stats[i], ring_stats); 404 } 405 406 ring->ring_stats = ring_stats; 407 } 408 409 /* Allocate Rx ring stats */ 410 ice_for_each_alloc_rxq(vsi, i) { 411 struct ice_ring_stats *ring_stats; 412 struct ice_rx_ring *ring; 413 414 ring = vsi->rx_rings[i]; 415 ring_stats = rx_ring_stats[i]; 416 417 if (!ring_stats) { 418 ring_stats = kzalloc_obj(*ring_stats); 419 if (!ring_stats) 420 goto err_out; 421 422 u64_stats_init(&ring_stats->syncp); 423 424 WRITE_ONCE(rx_ring_stats[i], ring_stats); 425 } 426 427 ring->ring_stats = ring_stats; 428 } 429 430 return 0; 431 432 err_out: 433 ice_vsi_free_stats(vsi); 434 return -ENOMEM; 435 } 436 437 /** 438 * ice_vsi_free - clean up and deallocate the provided VSI 439 * @vsi: pointer to VSI being cleared 440 * 441 * This deallocates the VSI's queue resources, removes it from the PF's 442 * VSI array if necessary, and deallocates the VSI 443 */ 444 void ice_vsi_free(struct ice_vsi *vsi) 445 { 446 struct ice_pf *pf = NULL; 447 struct device *dev; 448 449 if (!vsi || !vsi->back) 450 return; 451 452 pf = vsi->back; 453 dev = ice_pf_to_dev(pf); 454 455 if (!pf->vsi[vsi->idx] || pf->vsi[vsi->idx] != vsi) { 456 dev_dbg(dev, "vsi does not exist at pf->vsi[%d]\n", vsi->idx); 457 return; 458 } 459 460 mutex_lock(&pf->sw_mutex); 461 /* updates the PF for this cleared VSI */ 462 463 pf->vsi[vsi->idx] = NULL; 464 pf->next_vsi = vsi->idx; 465 466 ice_vsi_free_stats(vsi); 467 ice_vsi_free_arrays(vsi); 468 mutex_destroy(&vsi->xdp_state_lock); 469 mutex_unlock(&pf->sw_mutex); 470 devm_kfree(dev, vsi); 471 } 472 473 void ice_vsi_delete(struct ice_vsi *vsi) 474 { 475 ice_vsi_delete_from_hw(vsi); 476 ice_vsi_free(vsi); 477 } 478 479 /** 480 * ice_msix_clean_ctrl_vsi - MSIX mode interrupt handler for ctrl VSI 481 * @irq: interrupt number 482 * @data: pointer to a q_vector 483 */ 484 static irqreturn_t ice_msix_clean_ctrl_vsi(int __always_unused irq, void *data) 485 { 486 struct ice_q_vector *q_vector = (struct ice_q_vector *)data; 487 488 if (!q_vector->tx.tx_ring) 489 return IRQ_HANDLED; 490 491 ice_clean_ctrl_rx_irq(q_vector->rx.rx_ring); 492 ice_clean_ctrl_tx_irq(q_vector->tx.tx_ring); 493 494 return IRQ_HANDLED; 495 } 496 497 /** 498 * ice_msix_clean_rings - MSIX mode Interrupt Handler 499 * @irq: interrupt number 500 * @data: pointer to a q_vector 501 */ 502 static irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data) 503 { 504 struct ice_q_vector *q_vector = (struct ice_q_vector *)data; 505 506 if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring) 507 return IRQ_HANDLED; 508 509 q_vector->total_events++; 510 511 napi_schedule(&q_vector->napi); 512 513 return IRQ_HANDLED; 514 } 515 516 /** 517 * ice_vsi_alloc_stat_arrays - Allocate statistics arrays 518 * @vsi: VSI pointer 519 */ 520 static int ice_vsi_alloc_stat_arrays(struct ice_vsi *vsi) 521 { 522 struct ice_vsi_stats *vsi_stat; 523 struct ice_pf *pf = vsi->back; 524 525 if (vsi->type == ICE_VSI_CHNL) 526 return 0; 527 if (!pf->vsi_stats) 528 return -ENOENT; 529 530 if (pf->vsi_stats[vsi->idx]) 531 /* realloc will happen in rebuild path */ 532 return 0; 533 534 vsi_stat = kzalloc_obj(*vsi_stat); 535 if (!vsi_stat) 536 return -ENOMEM; 537 538 vsi_stat->tx_ring_stats = 539 kzalloc_objs(*vsi_stat->tx_ring_stats, vsi->alloc_txq); 540 if (!vsi_stat->tx_ring_stats) 541 goto err_alloc_tx; 542 543 vsi_stat->rx_ring_stats = 544 kzalloc_objs(*vsi_stat->rx_ring_stats, vsi->alloc_rxq); 545 if (!vsi_stat->rx_ring_stats) 546 goto err_alloc_rx; 547 548 pf->vsi_stats[vsi->idx] = vsi_stat; 549 550 return 0; 551 552 err_alloc_rx: 553 kfree(vsi_stat->rx_ring_stats); 554 err_alloc_tx: 555 kfree(vsi_stat->tx_ring_stats); 556 kfree(vsi_stat); 557 pf->vsi_stats[vsi->idx] = NULL; 558 return -ENOMEM; 559 } 560 561 /** 562 * ice_vsi_alloc_def - set default values for already allocated VSI 563 * @vsi: ptr to VSI 564 * @ch: ptr to channel 565 */ 566 static int 567 ice_vsi_alloc_def(struct ice_vsi *vsi, struct ice_channel *ch) 568 { 569 if (vsi->type != ICE_VSI_CHNL) { 570 ice_vsi_set_num_qs(vsi); 571 if (ice_vsi_alloc_arrays(vsi)) 572 return -ENOMEM; 573 } 574 575 vsi->irq_dyn_alloc = pci_msix_can_alloc_dyn(vsi->back->pdev); 576 577 switch (vsi->type) { 578 case ICE_VSI_PF: 579 case ICE_VSI_SF: 580 /* Setup default MSIX irq handler for VSI */ 581 vsi->irq_handler = ice_msix_clean_rings; 582 break; 583 case ICE_VSI_CTRL: 584 /* Setup ctrl VSI MSIX irq handler */ 585 vsi->irq_handler = ice_msix_clean_ctrl_vsi; 586 break; 587 case ICE_VSI_CHNL: 588 if (!ch) 589 return -EINVAL; 590 591 vsi->num_rxq = ch->num_rxq; 592 vsi->num_txq = ch->num_txq; 593 vsi->next_base_q = ch->base_q; 594 break; 595 case ICE_VSI_VF: 596 case ICE_VSI_LB: 597 break; 598 default: 599 ice_vsi_free_arrays(vsi); 600 return -EINVAL; 601 } 602 603 return 0; 604 } 605 606 /** 607 * ice_vsi_alloc - Allocates the next available struct VSI in the PF 608 * @pf: board private structure 609 * 610 * Reserves a VSI index from the PF and allocates an empty VSI structure 611 * without a type. The VSI structure must later be initialized by calling 612 * ice_vsi_cfg(). 613 * 614 * returns a pointer to a VSI on success, NULL on failure. 615 */ 616 struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf) 617 { 618 struct device *dev = ice_pf_to_dev(pf); 619 struct ice_vsi *vsi = NULL; 620 621 /* Need to protect the allocation of the VSIs at the PF level */ 622 mutex_lock(&pf->sw_mutex); 623 624 /* If we have already allocated our maximum number of VSIs, 625 * pf->next_vsi will be ICE_NO_VSI. If not, pf->next_vsi index 626 * is available to be populated 627 */ 628 if (pf->next_vsi == ICE_NO_VSI) { 629 dev_dbg(dev, "out of VSI slots!\n"); 630 goto unlock_pf; 631 } 632 633 vsi = devm_kzalloc(dev, sizeof(*vsi), GFP_KERNEL); 634 if (!vsi) 635 goto unlock_pf; 636 637 vsi->back = pf; 638 set_bit(ICE_VSI_DOWN, vsi->state); 639 640 /* fill slot and make note of the index */ 641 vsi->idx = pf->next_vsi; 642 pf->vsi[pf->next_vsi] = vsi; 643 644 /* prepare pf->next_vsi for next use */ 645 pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi, 646 pf->next_vsi); 647 648 mutex_init(&vsi->xdp_state_lock); 649 650 unlock_pf: 651 mutex_unlock(&pf->sw_mutex); 652 return vsi; 653 } 654 655 /** 656 * ice_alloc_fd_res - Allocate FD resource for a VSI 657 * @vsi: pointer to the ice_vsi 658 * 659 * This allocates the FD resources 660 * 661 * Returns 0 on success, -EPERM on no-op or -EIO on failure 662 */ 663 static int ice_alloc_fd_res(struct ice_vsi *vsi) 664 { 665 struct ice_pf *pf = vsi->back; 666 u32 g_val, b_val; 667 668 /* Flow Director filters are only allocated/assigned to the PF VSI or 669 * CHNL VSI which passes the traffic. The CTRL VSI is only used to 670 * add/delete filters so resources are not allocated to it 671 */ 672 if (!test_bit(ICE_FLAG_FD_ENA, pf->flags)) 673 return -EPERM; 674 675 if (!(vsi->type == ICE_VSI_PF || vsi->type == ICE_VSI_VF || 676 vsi->type == ICE_VSI_CHNL)) 677 return -EPERM; 678 679 /* FD filters from guaranteed pool per VSI */ 680 g_val = pf->hw.func_caps.fd_fltr_guar; 681 if (!g_val) 682 return -EPERM; 683 684 /* FD filters from best effort pool */ 685 b_val = pf->hw.func_caps.fd_fltr_best_effort; 686 if (!b_val) 687 return -EPERM; 688 689 /* PF main VSI gets only 64 FD resources from guaranteed pool 690 * when ADQ is configured. 691 */ 692 #define ICE_PF_VSI_GFLTR 64 693 694 /* determine FD filter resources per VSI from shared(best effort) and 695 * dedicated pool 696 */ 697 if (vsi->type == ICE_VSI_PF) { 698 vsi->num_gfltr = g_val; 699 /* if MQPRIO is configured, main VSI doesn't get all FD 700 * resources from guaranteed pool. PF VSI gets 64 FD resources 701 */ 702 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) { 703 if (g_val < ICE_PF_VSI_GFLTR) 704 return -EPERM; 705 /* allow bare minimum entries for PF VSI */ 706 vsi->num_gfltr = ICE_PF_VSI_GFLTR; 707 } 708 709 /* each VSI gets same "best_effort" quota */ 710 vsi->num_bfltr = b_val; 711 } else if (vsi->type == ICE_VSI_VF) { 712 vsi->num_gfltr = 0; 713 714 /* each VSI gets same "best_effort" quota */ 715 vsi->num_bfltr = b_val; 716 } else { 717 struct ice_vsi *main_vsi; 718 int numtc; 719 720 main_vsi = ice_get_main_vsi(pf); 721 if (!main_vsi) 722 return -EPERM; 723 724 if (!main_vsi->all_numtc) 725 return -EINVAL; 726 727 /* figure out ADQ numtc */ 728 numtc = main_vsi->all_numtc - ICE_CHNL_START_TC; 729 730 /* only one TC but still asking resources for channels, 731 * invalid config 732 */ 733 if (numtc < ICE_CHNL_START_TC) 734 return -EPERM; 735 736 g_val -= ICE_PF_VSI_GFLTR; 737 /* channel VSIs gets equal share from guaranteed pool */ 738 vsi->num_gfltr = g_val / numtc; 739 740 /* each VSI gets same "best_effort" quota */ 741 vsi->num_bfltr = b_val; 742 } 743 744 return 0; 745 } 746 747 /** 748 * ice_vsi_get_qs - Assign queues from PF to VSI 749 * @vsi: the VSI to assign queues to 750 * 751 * Returns 0 on success and a negative value on error 752 */ 753 static int ice_vsi_get_qs(struct ice_vsi *vsi) 754 { 755 struct ice_pf *pf = vsi->back; 756 struct ice_qs_cfg tx_qs_cfg = { 757 .qs_mutex = &pf->avail_q_mutex, 758 .pf_map = pf->avail_txqs, 759 .pf_map_size = pf->max_pf_txqs, 760 .q_count = vsi->alloc_txq, 761 .scatter_count = ICE_MAX_SCATTER_TXQS, 762 .vsi_map = vsi->txq_map, 763 .vsi_map_offset = 0, 764 .mapping_mode = ICE_VSI_MAP_CONTIG 765 }; 766 struct ice_qs_cfg rx_qs_cfg = { 767 .qs_mutex = &pf->avail_q_mutex, 768 .pf_map = pf->avail_rxqs, 769 .pf_map_size = pf->max_pf_rxqs, 770 .q_count = vsi->alloc_rxq, 771 .scatter_count = ICE_MAX_SCATTER_RXQS, 772 .vsi_map = vsi->rxq_map, 773 .vsi_map_offset = 0, 774 .mapping_mode = ICE_VSI_MAP_CONTIG 775 }; 776 int ret; 777 778 if (vsi->type == ICE_VSI_CHNL) 779 return 0; 780 781 ret = __ice_vsi_get_qs(&tx_qs_cfg); 782 if (ret) 783 return ret; 784 vsi->tx_mapping_mode = tx_qs_cfg.mapping_mode; 785 786 ret = __ice_vsi_get_qs(&rx_qs_cfg); 787 if (ret) 788 return ret; 789 vsi->rx_mapping_mode = rx_qs_cfg.mapping_mode; 790 791 return 0; 792 } 793 794 /** 795 * ice_vsi_put_qs - Release queues from VSI to PF 796 * @vsi: the VSI that is going to release queues 797 */ 798 static void ice_vsi_put_qs(struct ice_vsi *vsi) 799 { 800 struct ice_pf *pf = vsi->back; 801 int i; 802 803 mutex_lock(&pf->avail_q_mutex); 804 805 ice_for_each_alloc_txq(vsi, i) { 806 clear_bit(vsi->txq_map[i], pf->avail_txqs); 807 vsi->txq_map[i] = ICE_INVAL_Q_INDEX; 808 } 809 810 ice_for_each_alloc_rxq(vsi, i) { 811 clear_bit(vsi->rxq_map[i], pf->avail_rxqs); 812 vsi->rxq_map[i] = ICE_INVAL_Q_INDEX; 813 } 814 815 mutex_unlock(&pf->avail_q_mutex); 816 } 817 818 /** 819 * ice_is_safe_mode 820 * @pf: pointer to the PF struct 821 * 822 * returns true if driver is in safe mode, false otherwise 823 */ 824 bool ice_is_safe_mode(struct ice_pf *pf) 825 { 826 return !test_bit(ICE_FLAG_ADV_FEATURES, pf->flags); 827 } 828 829 /** 830 * ice_is_rdma_ena 831 * @pf: pointer to the PF struct 832 * 833 * returns true if RDMA is currently supported, false otherwise 834 */ 835 bool ice_is_rdma_ena(struct ice_pf *pf) 836 { 837 union devlink_param_value value; 838 int err; 839 840 err = devl_param_driverinit_value_get(priv_to_devlink(pf), 841 DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, 842 &value); 843 return err ? test_bit(ICE_FLAG_RDMA_ENA, pf->flags) : value.vbool; 844 } 845 846 /** 847 * ice_vsi_clean_rss_flow_fld - Delete RSS configuration 848 * @vsi: the VSI being cleaned up 849 * 850 * This function deletes RSS input set for all flows that were configured 851 * for this VSI 852 */ 853 static void ice_vsi_clean_rss_flow_fld(struct ice_vsi *vsi) 854 { 855 struct ice_pf *pf = vsi->back; 856 int status; 857 858 if (ice_is_safe_mode(pf)) 859 return; 860 861 status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx); 862 if (status) 863 dev_dbg(ice_pf_to_dev(pf), "ice_rem_vsi_rss_cfg failed for vsi = %d, error = %d\n", 864 vsi->vsi_num, status); 865 } 866 867 /** 868 * ice_rss_clean - Delete RSS related VSI structures and configuration 869 * @vsi: the VSI being removed 870 */ 871 static void ice_rss_clean(struct ice_vsi *vsi) 872 { 873 struct ice_pf *pf = vsi->back; 874 struct device *dev; 875 876 dev = ice_pf_to_dev(pf); 877 878 devm_kfree(dev, vsi->rss_hkey_user); 879 devm_kfree(dev, vsi->rss_lut_user); 880 881 ice_vsi_clean_rss_flow_fld(vsi); 882 /* remove RSS replay list */ 883 if (!ice_is_safe_mode(pf)) 884 ice_rem_vsi_rss_list(&pf->hw, vsi->idx); 885 } 886 887 /** 888 * ice_vsi_set_rss_params - Setup RSS capabilities per VSI type 889 * @vsi: the VSI being configured 890 */ 891 static void ice_vsi_set_rss_params(struct ice_vsi *vsi) 892 { 893 struct ice_hw_common_caps *cap; 894 struct ice_pf *pf = vsi->back; 895 u16 max_rss_size; 896 897 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 898 vsi->rss_size = 1; 899 return; 900 } 901 902 cap = &pf->hw.func_caps.common_cap; 903 max_rss_size = BIT(cap->rss_table_entry_width); 904 switch (vsi->type) { 905 case ICE_VSI_CHNL: 906 case ICE_VSI_PF: 907 /* PF VSI will inherit RSS instance of PF */ 908 vsi->rss_table_size = (u16)cap->rss_table_size; 909 if (vsi->type == ICE_VSI_CHNL) 910 vsi->rss_size = min_t(u16, vsi->num_rxq, max_rss_size); 911 else 912 vsi->rss_size = min_t(u16, 913 netif_get_num_default_rss_queues(), 914 max_rss_size); 915 vsi->rss_lut_type = ICE_LUT_PF; 916 break; 917 case ICE_VSI_SF: 918 vsi->rss_table_size = ICE_LUT_VSI_SIZE; 919 vsi->rss_size = min_t(u16, netif_get_num_default_rss_queues(), 920 max_rss_size); 921 vsi->rss_lut_type = ICE_LUT_VSI; 922 break; 923 case ICE_VSI_VF: 924 /* VF VSI will get a small RSS table. 925 * For VSI_LUT, LUT size should be set to 64 bytes. 926 */ 927 vsi->rss_table_size = ICE_LUT_VSI_SIZE; 928 vsi->rss_size = ICE_MAX_RSS_QS_PER_VF; 929 vsi->rss_lut_type = ICE_LUT_VSI; 930 break; 931 case ICE_VSI_LB: 932 break; 933 default: 934 dev_dbg(ice_pf_to_dev(pf), "Unsupported VSI type %s\n", 935 ice_vsi_type_str(vsi->type)); 936 break; 937 } 938 } 939 940 /** 941 * ice_set_dflt_vsi_ctx - Set default VSI context before adding a VSI 942 * @hw: HW structure used to determine the VLAN mode of the device 943 * @ctxt: the VSI context being set 944 * 945 * This initializes a default VSI context for all sections except the Queues. 946 */ 947 static void ice_set_dflt_vsi_ctx(struct ice_hw *hw, struct ice_vsi_ctx *ctxt) 948 { 949 u32 table = 0; 950 951 memset(&ctxt->info, 0, sizeof(ctxt->info)); 952 /* VSI's should be allocated from shared pool */ 953 ctxt->alloc_from_pool = true; 954 /* Src pruning enabled by default */ 955 ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE; 956 /* Traffic from VSI can be sent to LAN */ 957 ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; 958 /* allow all untagged/tagged packets by default on Tx */ 959 ctxt->info.inner_vlan_flags = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_TX_MODE_M, 960 ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL); 961 /* SVM - by default bits 3 and 4 in inner_vlan_flags are 0's which 962 * results in legacy behavior (show VLAN, DEI, and UP) in descriptor. 963 * 964 * DVM - leave inner VLAN in packet by default 965 */ 966 if (ice_is_dvm_ena(hw)) { 967 ctxt->info.inner_vlan_flags |= 968 FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M, 969 ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING); 970 ctxt->info.outer_vlan_flags = 971 FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M, 972 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL); 973 ctxt->info.outer_vlan_flags |= 974 FIELD_PREP(ICE_AQ_VSI_OUTER_TAG_TYPE_M, 975 ICE_AQ_VSI_OUTER_TAG_VLAN_8100); 976 ctxt->info.outer_vlan_flags |= 977 FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_EMODE_M, 978 ICE_AQ_VSI_OUTER_VLAN_EMODE_NOTHING); 979 } 980 /* Have 1:1 UP mapping for both ingress/egress tables */ 981 table |= ICE_UP_TABLE_TRANSLATE(0, 0); 982 table |= ICE_UP_TABLE_TRANSLATE(1, 1); 983 table |= ICE_UP_TABLE_TRANSLATE(2, 2); 984 table |= ICE_UP_TABLE_TRANSLATE(3, 3); 985 table |= ICE_UP_TABLE_TRANSLATE(4, 4); 986 table |= ICE_UP_TABLE_TRANSLATE(5, 5); 987 table |= ICE_UP_TABLE_TRANSLATE(6, 6); 988 table |= ICE_UP_TABLE_TRANSLATE(7, 7); 989 ctxt->info.ingress_table = cpu_to_le32(table); 990 ctxt->info.egress_table = cpu_to_le32(table); 991 /* Have 1:1 UP mapping for outer to inner UP table */ 992 ctxt->info.outer_up_table = cpu_to_le32(table); 993 /* No Outer tag support outer_tag_flags remains to zero */ 994 } 995 996 /** 997 * ice_vsi_setup_q_map - Setup a VSI queue map 998 * @vsi: the VSI being configured 999 * @ctxt: VSI context structure 1000 */ 1001 static int ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) 1002 { 1003 u16 offset = 0, qmap = 0, tx_count = 0, rx_count = 0, pow = 0; 1004 u16 num_txq_per_tc, num_rxq_per_tc; 1005 u16 qcount_tx = vsi->alloc_txq; 1006 u16 qcount_rx = vsi->alloc_rxq; 1007 u8 netdev_tc = 0; 1008 int i; 1009 1010 if (!vsi->tc_cfg.numtc) { 1011 /* at least TC0 should be enabled by default */ 1012 vsi->tc_cfg.numtc = 1; 1013 vsi->tc_cfg.ena_tc = 1; 1014 } 1015 1016 num_rxq_per_tc = min_t(u16, qcount_rx / vsi->tc_cfg.numtc, ICE_MAX_RXQS_PER_TC); 1017 if (!num_rxq_per_tc) 1018 num_rxq_per_tc = 1; 1019 num_txq_per_tc = qcount_tx / vsi->tc_cfg.numtc; 1020 if (!num_txq_per_tc) 1021 num_txq_per_tc = 1; 1022 1023 /* find the (rounded up) power-of-2 of qcount */ 1024 pow = (u16)order_base_2(num_rxq_per_tc); 1025 1026 /* TC mapping is a function of the number of Rx queues assigned to the 1027 * VSI for each traffic class and the offset of these queues. 1028 * The first 10 bits are for queue offset for TC0, next 4 bits for no:of 1029 * queues allocated to TC0. No:of queues is a power-of-2. 1030 * 1031 * If TC is not enabled, the queue offset is set to 0, and allocate one 1032 * queue, this way, traffic for the given TC will be sent to the default 1033 * queue. 1034 * 1035 * Setup number and offset of Rx queues for all TCs for the VSI 1036 */ 1037 ice_for_each_traffic_class(i) { 1038 if (!(vsi->tc_cfg.ena_tc & BIT(i))) { 1039 /* TC is not enabled */ 1040 vsi->tc_cfg.tc_info[i].qoffset = 0; 1041 vsi->tc_cfg.tc_info[i].qcount_rx = 1; 1042 vsi->tc_cfg.tc_info[i].qcount_tx = 1; 1043 vsi->tc_cfg.tc_info[i].netdev_tc = 0; 1044 ctxt->info.tc_mapping[i] = 0; 1045 continue; 1046 } 1047 1048 /* TC is enabled */ 1049 vsi->tc_cfg.tc_info[i].qoffset = offset; 1050 vsi->tc_cfg.tc_info[i].qcount_rx = num_rxq_per_tc; 1051 vsi->tc_cfg.tc_info[i].qcount_tx = num_txq_per_tc; 1052 vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++; 1053 1054 qmap = FIELD_PREP(ICE_AQ_VSI_TC_Q_OFFSET_M, offset); 1055 qmap |= FIELD_PREP(ICE_AQ_VSI_TC_Q_NUM_M, pow); 1056 offset += num_rxq_per_tc; 1057 tx_count += num_txq_per_tc; 1058 ctxt->info.tc_mapping[i] = cpu_to_le16(qmap); 1059 } 1060 1061 /* if offset is non-zero, means it is calculated correctly based on 1062 * enabled TCs for a given VSI otherwise qcount_rx will always 1063 * be correct and non-zero because it is based off - VSI's 1064 * allocated Rx queues which is at least 1 (hence qcount_tx will be 1065 * at least 1) 1066 */ 1067 if (offset) 1068 rx_count = offset; 1069 else 1070 rx_count = num_rxq_per_tc; 1071 1072 if (rx_count > vsi->alloc_rxq) { 1073 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Rx queues (%u), than were allocated (%u)!\n", 1074 rx_count, vsi->alloc_rxq); 1075 return -EINVAL; 1076 } 1077 1078 if (tx_count > vsi->alloc_txq) { 1079 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Tx queues (%u), than were allocated (%u)!\n", 1080 tx_count, vsi->alloc_txq); 1081 return -EINVAL; 1082 } 1083 1084 vsi->num_txq = tx_count; 1085 vsi->num_rxq = rx_count; 1086 1087 if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) { 1088 dev_dbg(ice_pf_to_dev(vsi->back), "VF VSI should have same number of Tx and Rx queues. Hence making them equal\n"); 1089 /* since there is a chance that num_rxq could have been changed 1090 * in the above for loop, make num_txq equal to num_rxq. 1091 */ 1092 vsi->num_txq = vsi->num_rxq; 1093 } 1094 1095 /* Rx queue mapping */ 1096 ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG); 1097 /* q_mapping buffer holds the info for the first queue allocated for 1098 * this VSI in the PF space and also the number of queues associated 1099 * with this VSI. 1100 */ 1101 ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]); 1102 ctxt->info.q_mapping[1] = cpu_to_le16(vsi->num_rxq); 1103 1104 return 0; 1105 } 1106 1107 /** 1108 * ice_set_fd_vsi_ctx - Set FD VSI context before adding a VSI 1109 * @ctxt: the VSI context being set 1110 * @vsi: the VSI being configured 1111 */ 1112 static void ice_set_fd_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) 1113 { 1114 u8 dflt_q_group, dflt_q_prio; 1115 u16 dflt_q, report_q, val; 1116 1117 if (vsi->type != ICE_VSI_PF && vsi->type != ICE_VSI_CTRL && 1118 vsi->type != ICE_VSI_VF && vsi->type != ICE_VSI_CHNL) 1119 return; 1120 1121 val = ICE_AQ_VSI_PROP_FLOW_DIR_VALID; 1122 ctxt->info.valid_sections |= cpu_to_le16(val); 1123 dflt_q = 0; 1124 dflt_q_group = 0; 1125 report_q = 0; 1126 dflt_q_prio = 0; 1127 1128 /* enable flow director filtering/programming */ 1129 val = ICE_AQ_VSI_FD_ENABLE | ICE_AQ_VSI_FD_PROG_ENABLE; 1130 ctxt->info.fd_options = cpu_to_le16(val); 1131 /* max of allocated flow director filters */ 1132 ctxt->info.max_fd_fltr_dedicated = 1133 cpu_to_le16(vsi->num_gfltr); 1134 /* max of shared flow director filters any VSI may program */ 1135 ctxt->info.max_fd_fltr_shared = 1136 cpu_to_le16(vsi->num_bfltr); 1137 /* default queue index within the VSI of the default FD */ 1138 val = FIELD_PREP(ICE_AQ_VSI_FD_DEF_Q_M, dflt_q); 1139 /* target queue or queue group to the FD filter */ 1140 val |= FIELD_PREP(ICE_AQ_VSI_FD_DEF_GRP_M, dflt_q_group); 1141 ctxt->info.fd_def_q = cpu_to_le16(val); 1142 /* queue index on which FD filter completion is reported */ 1143 val = FIELD_PREP(ICE_AQ_VSI_FD_REPORT_Q_M, report_q); 1144 /* priority of the default qindex action */ 1145 val |= FIELD_PREP(ICE_AQ_VSI_FD_DEF_PRIORITY_M, dflt_q_prio); 1146 ctxt->info.fd_report_opt = cpu_to_le16(val); 1147 } 1148 1149 /** 1150 * ice_set_rss_vsi_ctx - Set RSS VSI context before adding a VSI 1151 * @ctxt: the VSI context being set 1152 * @vsi: the VSI being configured 1153 */ 1154 static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) 1155 { 1156 u8 lut_type, hash_type; 1157 struct device *dev; 1158 struct ice_pf *pf; 1159 1160 pf = vsi->back; 1161 dev = ice_pf_to_dev(pf); 1162 1163 switch (vsi->type) { 1164 case ICE_VSI_CHNL: 1165 case ICE_VSI_PF: 1166 /* PF VSI will inherit RSS instance of PF */ 1167 lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_PF; 1168 break; 1169 case ICE_VSI_VF: 1170 case ICE_VSI_SF: 1171 /* VF VSI will gets a small RSS table which is a VSI LUT type */ 1172 lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI; 1173 break; 1174 default: 1175 dev_dbg(dev, "Unsupported VSI type %s\n", 1176 ice_vsi_type_str(vsi->type)); 1177 return; 1178 } 1179 1180 hash_type = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; 1181 vsi->rss_hfunc = hash_type; 1182 1183 ctxt->info.q_opt_rss = 1184 FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_LUT_M, lut_type) | 1185 FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M, hash_type); 1186 } 1187 1188 static void 1189 ice_chnl_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) 1190 { 1191 u16 qcount, qmap; 1192 u8 offset = 0; 1193 int pow; 1194 1195 qcount = vsi->num_rxq; 1196 1197 pow = order_base_2(qcount); 1198 qmap = FIELD_PREP(ICE_AQ_VSI_TC_Q_OFFSET_M, offset); 1199 qmap |= FIELD_PREP(ICE_AQ_VSI_TC_Q_NUM_M, pow); 1200 1201 ctxt->info.tc_mapping[0] = cpu_to_le16(qmap); 1202 ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG); 1203 ctxt->info.q_mapping[0] = cpu_to_le16(vsi->next_base_q); 1204 ctxt->info.q_mapping[1] = cpu_to_le16(qcount); 1205 } 1206 1207 /** 1208 * ice_vsi_is_vlan_pruning_ena - check if VLAN pruning is enabled or not 1209 * @vsi: VSI to check whether or not VLAN pruning is enabled. 1210 * 1211 * returns true if Rx VLAN pruning is enabled and false otherwise. 1212 */ 1213 static bool ice_vsi_is_vlan_pruning_ena(struct ice_vsi *vsi) 1214 { 1215 return vsi->info.sw_flags2 & ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 1216 } 1217 1218 /** 1219 * ice_vsi_init - Create and initialize a VSI 1220 * @vsi: the VSI being configured 1221 * @vsi_flags: VSI configuration flags 1222 * 1223 * Set ICE_FLAG_VSI_INIT to initialize a new VSI context, clear it to 1224 * reconfigure an existing context. 1225 * 1226 * This initializes a VSI context depending on the VSI type to be added and 1227 * passes it down to the add_vsi aq command to create a new VSI. 1228 */ 1229 static int ice_vsi_init(struct ice_vsi *vsi, u32 vsi_flags) 1230 { 1231 struct ice_pf *pf = vsi->back; 1232 struct ice_hw *hw = &pf->hw; 1233 struct ice_vsi_ctx *ctxt; 1234 struct device *dev; 1235 int ret = 0; 1236 1237 dev = ice_pf_to_dev(pf); 1238 ctxt = kzalloc_obj(*ctxt); 1239 if (!ctxt) 1240 return -ENOMEM; 1241 1242 switch (vsi->type) { 1243 case ICE_VSI_CTRL: 1244 case ICE_VSI_LB: 1245 case ICE_VSI_PF: 1246 ctxt->flags = ICE_AQ_VSI_TYPE_PF; 1247 break; 1248 case ICE_VSI_SF: 1249 case ICE_VSI_CHNL: 1250 ctxt->flags = ICE_AQ_VSI_TYPE_VMDQ2; 1251 break; 1252 case ICE_VSI_VF: 1253 ctxt->flags = ICE_AQ_VSI_TYPE_VF; 1254 /* VF number here is the absolute VF number (0-255) */ 1255 ctxt->vf_num = vsi->vf->vf_id + hw->func_caps.vf_base_id; 1256 break; 1257 default: 1258 ret = -ENODEV; 1259 goto out; 1260 } 1261 1262 /* Handle VLAN pruning for channel VSI if main VSI has VLAN 1263 * prune enabled 1264 */ 1265 if (vsi->type == ICE_VSI_CHNL) { 1266 struct ice_vsi *main_vsi; 1267 1268 main_vsi = ice_get_main_vsi(pf); 1269 if (main_vsi && ice_vsi_is_vlan_pruning_ena(main_vsi)) 1270 ctxt->info.sw_flags2 |= 1271 ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 1272 else 1273 ctxt->info.sw_flags2 &= 1274 ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 1275 } 1276 1277 ice_set_dflt_vsi_ctx(hw, ctxt); 1278 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) 1279 ice_set_fd_vsi_ctx(ctxt, vsi); 1280 /* if the switch is in VEB mode, allow VSI loopback */ 1281 if (vsi->vsw->bridge_mode == BRIDGE_MODE_VEB) 1282 ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB; 1283 1284 /* Set LUT type and HASH type if RSS is enabled */ 1285 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags) && 1286 vsi->type != ICE_VSI_CTRL) { 1287 ice_set_rss_vsi_ctx(ctxt, vsi); 1288 /* if updating VSI context, make sure to set valid_section: 1289 * to indicate which section of VSI context being updated 1290 */ 1291 if (!(vsi_flags & ICE_VSI_FLAG_INIT)) 1292 ctxt->info.valid_sections |= 1293 cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID); 1294 } 1295 1296 ctxt->info.sw_id = vsi->port_info->sw_id; 1297 if (vsi->type == ICE_VSI_CHNL) { 1298 ice_chnl_vsi_setup_q_map(vsi, ctxt); 1299 } else { 1300 ret = ice_vsi_setup_q_map(vsi, ctxt); 1301 if (ret) 1302 goto out; 1303 1304 if (!(vsi_flags & ICE_VSI_FLAG_INIT)) 1305 /* means VSI being updated */ 1306 /* must to indicate which section of VSI context are 1307 * being modified 1308 */ 1309 ctxt->info.valid_sections |= 1310 cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID); 1311 } 1312 1313 /* Allow control frames out of main VSI */ 1314 if (vsi->type == ICE_VSI_PF) { 1315 ctxt->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; 1316 ctxt->info.valid_sections |= 1317 cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); 1318 } 1319 1320 if (vsi_flags & ICE_VSI_FLAG_INIT) { 1321 ret = ice_add_vsi(hw, vsi->idx, ctxt, NULL); 1322 if (ret) { 1323 dev_err(dev, "Add VSI failed, err %d\n", ret); 1324 ret = -EIO; 1325 goto out; 1326 } 1327 } else { 1328 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 1329 if (ret) { 1330 dev_err(dev, "Update VSI failed, err %d\n", ret); 1331 ret = -EIO; 1332 goto out; 1333 } 1334 } 1335 1336 /* keep context for update VSI operations */ 1337 vsi->info = ctxt->info; 1338 1339 /* record VSI number returned */ 1340 vsi->vsi_num = ctxt->vsi_num; 1341 1342 out: 1343 kfree(ctxt); 1344 return ret; 1345 } 1346 1347 /** 1348 * ice_vsi_clear_rings - Deallocates the Tx and Rx rings for VSI 1349 * @vsi: the VSI having rings deallocated 1350 */ 1351 static void ice_vsi_clear_rings(struct ice_vsi *vsi) 1352 { 1353 int i; 1354 1355 /* Avoid stale references by clearing map from vector to ring */ 1356 if (vsi->q_vectors) { 1357 ice_for_each_q_vector(vsi, i) { 1358 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 1359 1360 if (q_vector) { 1361 q_vector->tx.tx_ring = NULL; 1362 q_vector->rx.rx_ring = NULL; 1363 } 1364 } 1365 } 1366 1367 if (vsi->tx_rings) { 1368 ice_for_each_alloc_txq(vsi, i) { 1369 if (vsi->tx_rings[i]) { 1370 kfree_rcu(vsi->tx_rings[i], rcu); 1371 WRITE_ONCE(vsi->tx_rings[i], NULL); 1372 } 1373 } 1374 } 1375 if (vsi->rx_rings) { 1376 ice_for_each_alloc_rxq(vsi, i) { 1377 if (vsi->rx_rings[i]) { 1378 kfree_rcu(vsi->rx_rings[i], rcu); 1379 WRITE_ONCE(vsi->rx_rings[i], NULL); 1380 } 1381 } 1382 } 1383 } 1384 1385 /** 1386 * ice_vsi_alloc_rings - Allocates Tx and Rx rings for the VSI 1387 * @vsi: VSI which is having rings allocated 1388 */ 1389 static int ice_vsi_alloc_rings(struct ice_vsi *vsi) 1390 { 1391 bool dvm_ena = ice_is_dvm_ena(&vsi->back->hw); 1392 struct ice_pf *pf = vsi->back; 1393 struct device *dev; 1394 u16 i; 1395 1396 dev = ice_pf_to_dev(pf); 1397 /* Allocate Tx rings */ 1398 ice_for_each_alloc_txq(vsi, i) { 1399 struct ice_tx_ring *ring; 1400 1401 /* allocate with kzalloc(), free with kfree_rcu() */ 1402 ring = kzalloc_obj(*ring); 1403 1404 if (!ring) 1405 goto err_out; 1406 1407 ring->q_index = i; 1408 ring->reg_idx = vsi->txq_map[i]; 1409 ring->vsi = vsi; 1410 ring->tx_tstamps = &pf->ptp.port.tx; 1411 ring->dev = dev; 1412 ring->count = vsi->num_tx_desc; 1413 ring->txq_teid = ICE_INVAL_TEID; 1414 if (dvm_ena) 1415 ring->flags |= ICE_TX_FLAGS_RING_VLAN_L2TAG2; 1416 else 1417 ring->flags |= ICE_TX_FLAGS_RING_VLAN_L2TAG1; 1418 WRITE_ONCE(vsi->tx_rings[i], ring); 1419 } 1420 1421 /* Allocate Rx rings */ 1422 ice_for_each_alloc_rxq(vsi, i) { 1423 struct ice_rx_ring *ring; 1424 1425 /* allocate with kzalloc(), free with kfree_rcu() */ 1426 ring = kzalloc_obj(*ring); 1427 if (!ring) 1428 goto err_out; 1429 1430 ring->q_index = i; 1431 ring->reg_idx = vsi->rxq_map[i]; 1432 ring->vsi = vsi; 1433 ring->netdev = vsi->netdev; 1434 ring->count = vsi->num_rx_desc; 1435 ring->cached_phctime = pf->ptp.cached_phc_time; 1436 1437 if (ice_is_feature_supported(pf, ICE_F_GCS)) 1438 ring->flags |= ICE_RX_FLAGS_RING_GCS; 1439 1440 WRITE_ONCE(vsi->rx_rings[i], ring); 1441 } 1442 1443 return 0; 1444 1445 err_out: 1446 ice_vsi_clear_rings(vsi); 1447 return -ENOMEM; 1448 } 1449 1450 /** 1451 * ice_vsi_manage_rss_lut - disable/enable RSS 1452 * @vsi: the VSI being changed 1453 * @ena: boolean value indicating if this is an enable or disable request 1454 * 1455 * In the event of disable request for RSS, this function will zero out RSS 1456 * LUT, while in the event of enable request for RSS, it will reconfigure RSS 1457 * LUT. 1458 */ 1459 void ice_vsi_manage_rss_lut(struct ice_vsi *vsi, bool ena) 1460 { 1461 u8 *lut; 1462 1463 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 1464 if (!lut) 1465 return; 1466 1467 if (ena) { 1468 if (vsi->rss_lut_user) 1469 memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size); 1470 else 1471 ice_fill_rss_lut(lut, vsi->rss_table_size, 1472 vsi->rss_size); 1473 } 1474 1475 ice_set_rss_lut(vsi, lut, vsi->rss_table_size); 1476 kfree(lut); 1477 } 1478 1479 /** 1480 * ice_vsi_cfg_crc_strip - Configure CRC stripping for a VSI 1481 * @vsi: VSI to be configured 1482 * @disable: set to true to have FCS / CRC in the frame data 1483 */ 1484 void ice_vsi_cfg_crc_strip(struct ice_vsi *vsi, bool disable) 1485 { 1486 int i; 1487 1488 ice_for_each_rxq(vsi, i) 1489 if (disable) 1490 vsi->rx_rings[i]->flags |= ICE_RX_FLAGS_CRC_STRIP_DIS; 1491 else 1492 vsi->rx_rings[i]->flags &= ~ICE_RX_FLAGS_CRC_STRIP_DIS; 1493 } 1494 1495 /** 1496 * ice_vsi_cfg_rss_lut_key - Configure RSS params for a VSI 1497 * @vsi: VSI to be configured 1498 */ 1499 int ice_vsi_cfg_rss_lut_key(struct ice_vsi *vsi) 1500 { 1501 struct ice_pf *pf = vsi->back; 1502 struct device *dev; 1503 u8 *lut, *key; 1504 int err; 1505 1506 dev = ice_pf_to_dev(pf); 1507 if (vsi->type == ICE_VSI_PF && vsi->ch_rss_size && 1508 (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))) { 1509 vsi->rss_size = min_t(u16, vsi->rss_size, vsi->ch_rss_size); 1510 } else { 1511 vsi->rss_size = min_t(u16, vsi->rss_size, vsi->num_rxq); 1512 1513 /* If orig_rss_size is valid and it is less than determined 1514 * main VSI's rss_size, update main VSI's rss_size to be 1515 * orig_rss_size so that when tc-qdisc is deleted, main VSI 1516 * RSS table gets programmed to be correct (whatever it was 1517 * to begin with (prior to setup-tc for ADQ config) 1518 */ 1519 if (vsi->orig_rss_size && vsi->rss_size < vsi->orig_rss_size && 1520 vsi->orig_rss_size <= vsi->num_rxq) { 1521 vsi->rss_size = vsi->orig_rss_size; 1522 /* now orig_rss_size is used, reset it to zero */ 1523 vsi->orig_rss_size = 0; 1524 } 1525 } 1526 1527 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 1528 if (!lut) 1529 return -ENOMEM; 1530 1531 if (vsi->rss_lut_user) 1532 memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size); 1533 else 1534 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); 1535 1536 err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size); 1537 if (err) { 1538 dev_err(dev, "set_rss_lut failed, error %d\n", err); 1539 goto ice_vsi_cfg_rss_exit; 1540 } 1541 1542 key = kzalloc(ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE, GFP_KERNEL); 1543 if (!key) { 1544 err = -ENOMEM; 1545 goto ice_vsi_cfg_rss_exit; 1546 } 1547 1548 if (vsi->rss_hkey_user) 1549 memcpy(key, vsi->rss_hkey_user, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE); 1550 else 1551 netdev_rss_key_fill((void *)key, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE); 1552 1553 err = ice_set_rss_key(vsi, key); 1554 if (err) 1555 dev_err(dev, "set_rss_key failed, error %d\n", err); 1556 1557 kfree(key); 1558 ice_vsi_cfg_rss_exit: 1559 kfree(lut); 1560 return err; 1561 } 1562 1563 /** 1564 * ice_vsi_set_vf_rss_flow_fld - Sets VF VSI RSS input set for different flows 1565 * @vsi: VSI to be configured 1566 * 1567 * This function will only be called during the VF VSI setup. Upon successful 1568 * completion of package download, this function will configure default RSS 1569 * input sets for VF VSI. 1570 */ 1571 static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi) 1572 { 1573 struct ice_pf *pf = vsi->back; 1574 struct device *dev; 1575 int status; 1576 1577 dev = ice_pf_to_dev(pf); 1578 if (ice_is_safe_mode(pf)) { 1579 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 1580 vsi->vsi_num); 1581 return; 1582 } 1583 1584 status = ice_add_avf_rss_cfg(&pf->hw, vsi, ICE_DEFAULT_RSS_HASHCFG); 1585 if (status) 1586 dev_dbg(dev, "ice_add_avf_rss_cfg failed for vsi = %d, error = %d\n", 1587 vsi->vsi_num, status); 1588 } 1589 1590 static const struct ice_rss_hash_cfg default_rss_cfgs[] = { 1591 /* configure RSS for IPv4 with input set IP src/dst */ 1592 {ICE_FLOW_SEG_HDR_IPV4, ICE_FLOW_HASH_IPV4, ICE_RSS_ANY_HEADERS, false}, 1593 /* configure RSS for IPv6 with input set IPv6 src/dst */ 1594 {ICE_FLOW_SEG_HDR_IPV6, ICE_FLOW_HASH_IPV6, ICE_RSS_ANY_HEADERS, false}, 1595 /* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */ 1596 {ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4, 1597 ICE_HASH_TCP_IPV4, ICE_RSS_ANY_HEADERS, false}, 1598 /* configure RSS for udp4 with input set IP src/dst, UDP src/dst */ 1599 {ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4, 1600 ICE_HASH_UDP_IPV4, ICE_RSS_ANY_HEADERS, false}, 1601 /* configure RSS for sctp4 with input set IP src/dst - only support 1602 * RSS on SCTPv4 on outer headers (non-tunneled) 1603 */ 1604 {ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4, 1605 ICE_HASH_SCTP_IPV4, ICE_RSS_OUTER_HEADERS, false}, 1606 /* configure RSS for gtpc4 with input set IPv4 src/dst */ 1607 {ICE_FLOW_SEG_HDR_GTPC | ICE_FLOW_SEG_HDR_IPV4, 1608 ICE_FLOW_HASH_IPV4, ICE_RSS_OUTER_HEADERS, false}, 1609 /* configure RSS for gtpc4t with input set IPv4 src/dst */ 1610 {ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_IPV4, 1611 ICE_FLOW_HASH_GTP_C_IPV4_TEID, ICE_RSS_OUTER_HEADERS, false}, 1612 /* configure RSS for gtpu4 with input set IPv4 src/dst */ 1613 {ICE_FLOW_SEG_HDR_GTPU_IP | ICE_FLOW_SEG_HDR_IPV4, 1614 ICE_FLOW_HASH_GTP_U_IPV4_TEID, ICE_RSS_OUTER_HEADERS, false}, 1615 /* configure RSS for gtpu4e with input set IPv4 src/dst */ 1616 {ICE_FLOW_SEG_HDR_GTPU_EH | ICE_FLOW_SEG_HDR_IPV4, 1617 ICE_FLOW_HASH_GTP_U_IPV4_EH, ICE_RSS_OUTER_HEADERS, false}, 1618 /* configure RSS for gtpu4u with input set IPv4 src/dst */ 1619 { ICE_FLOW_SEG_HDR_GTPU_UP | ICE_FLOW_SEG_HDR_IPV4, 1620 ICE_FLOW_HASH_GTP_U_IPV4_UP, ICE_RSS_OUTER_HEADERS, false}, 1621 /* configure RSS for gtpu4d with input set IPv4 src/dst */ 1622 {ICE_FLOW_SEG_HDR_GTPU_DWN | ICE_FLOW_SEG_HDR_IPV4, 1623 ICE_FLOW_HASH_GTP_U_IPV4_DWN, ICE_RSS_OUTER_HEADERS, false}, 1624 1625 /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ 1626 {ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6, 1627 ICE_HASH_TCP_IPV6, ICE_RSS_ANY_HEADERS, false}, 1628 /* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */ 1629 {ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6, 1630 ICE_HASH_UDP_IPV6, ICE_RSS_ANY_HEADERS, false}, 1631 /* configure RSS for sctp6 with input set IPv6 src/dst - only support 1632 * RSS on SCTPv6 on outer headers (non-tunneled) 1633 */ 1634 {ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6, 1635 ICE_HASH_SCTP_IPV6, ICE_RSS_OUTER_HEADERS, false}, 1636 /* configure RSS for IPSEC ESP SPI with input set MAC_IPV4_SPI */ 1637 {ICE_FLOW_SEG_HDR_ESP, 1638 ICE_FLOW_HASH_ESP_SPI, ICE_RSS_OUTER_HEADERS, false}, 1639 /* configure RSS for gtpc6 with input set IPv6 src/dst */ 1640 {ICE_FLOW_SEG_HDR_GTPC | ICE_FLOW_SEG_HDR_IPV6, 1641 ICE_FLOW_HASH_IPV6, ICE_RSS_OUTER_HEADERS, false}, 1642 /* configure RSS for gtpc6t with input set IPv6 src/dst */ 1643 {ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_IPV6, 1644 ICE_FLOW_HASH_GTP_C_IPV6_TEID, ICE_RSS_OUTER_HEADERS, false}, 1645 /* configure RSS for gtpu6 with input set IPv6 src/dst */ 1646 {ICE_FLOW_SEG_HDR_GTPU_IP | ICE_FLOW_SEG_HDR_IPV6, 1647 ICE_FLOW_HASH_GTP_U_IPV6_TEID, ICE_RSS_OUTER_HEADERS, false}, 1648 /* configure RSS for gtpu6e with input set IPv6 src/dst */ 1649 {ICE_FLOW_SEG_HDR_GTPU_EH | ICE_FLOW_SEG_HDR_IPV6, 1650 ICE_FLOW_HASH_GTP_U_IPV6_EH, ICE_RSS_OUTER_HEADERS, false}, 1651 /* configure RSS for gtpu6u with input set IPv6 src/dst */ 1652 { ICE_FLOW_SEG_HDR_GTPU_UP | ICE_FLOW_SEG_HDR_IPV6, 1653 ICE_FLOW_HASH_GTP_U_IPV6_UP, ICE_RSS_OUTER_HEADERS, false}, 1654 /* configure RSS for gtpu6d with input set IPv6 src/dst */ 1655 {ICE_FLOW_SEG_HDR_GTPU_DWN | ICE_FLOW_SEG_HDR_IPV6, 1656 ICE_FLOW_HASH_GTP_U_IPV6_DWN, ICE_RSS_OUTER_HEADERS, false}, 1657 }; 1658 1659 /** 1660 * ice_vsi_set_rss_flow_fld - Sets RSS input set for different flows 1661 * @vsi: VSI to be configured 1662 * 1663 * This function will only be called after successful download package call 1664 * during initialization of PF. Since the downloaded package will erase the 1665 * RSS section, this function will configure RSS input sets for different 1666 * flow types. The last profile added has the highest priority, therefore 2 1667 * tuple profiles (i.e. IPv4 src/dst) are added before 4 tuple profiles 1668 * (i.e. IPv4 src/dst TCP src/dst port). 1669 */ 1670 static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) 1671 { 1672 u16 vsi_num = vsi->vsi_num; 1673 struct ice_pf *pf = vsi->back; 1674 struct ice_hw *hw = &pf->hw; 1675 struct device *dev; 1676 int status; 1677 u32 i; 1678 1679 dev = ice_pf_to_dev(pf); 1680 if (ice_is_safe_mode(pf)) { 1681 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 1682 vsi_num); 1683 return; 1684 } 1685 for (i = 0; i < ARRAY_SIZE(default_rss_cfgs); i++) { 1686 const struct ice_rss_hash_cfg *cfg = &default_rss_cfgs[i]; 1687 1688 status = ice_add_rss_cfg(hw, vsi, cfg); 1689 if (status) 1690 dev_dbg(dev, "ice_add_rss_cfg failed, addl_hdrs = %x, hash_flds = %llx, hdr_type = %d, symm = %d\n", 1691 cfg->addl_hdrs, cfg->hash_flds, 1692 cfg->hdr_type, cfg->symm); 1693 } 1694 } 1695 1696 /** 1697 * ice_pf_state_is_nominal - checks the PF for nominal state 1698 * @pf: pointer to PF to check 1699 * 1700 * Check the PF's state for a collection of bits that would indicate 1701 * the PF is in a state that would inhibit normal operation for 1702 * driver functionality. 1703 * 1704 * Returns true if PF is in a nominal state, false otherwise 1705 */ 1706 bool ice_pf_state_is_nominal(struct ice_pf *pf) 1707 { 1708 DECLARE_BITMAP(check_bits, ICE_STATE_NBITS) = { 0 }; 1709 1710 if (!pf) 1711 return false; 1712 1713 bitmap_set(check_bits, 0, ICE_STATE_NOMINAL_CHECK_BITS); 1714 if (bitmap_intersects(pf->state, check_bits, ICE_STATE_NBITS)) 1715 return false; 1716 1717 return true; 1718 } 1719 1720 #define ICE_FW_MODE_REC_M BIT(1) 1721 bool ice_is_recovery_mode(struct ice_hw *hw) 1722 { 1723 return rd32(hw, GL_MNG_FWSM) & ICE_FW_MODE_REC_M; 1724 } 1725 1726 /** 1727 * ice_update_eth_stats - Update VSI-specific ethernet statistics counters 1728 * @vsi: the VSI to be updated 1729 */ 1730 void ice_update_eth_stats(struct ice_vsi *vsi) 1731 { 1732 struct ice_eth_stats *prev_es, *cur_es; 1733 struct ice_hw *hw = &vsi->back->hw; 1734 struct ice_pf *pf = vsi->back; 1735 u16 vsi_num = vsi->vsi_num; /* HW absolute index of a VSI */ 1736 1737 prev_es = &vsi->eth_stats_prev; 1738 cur_es = &vsi->eth_stats; 1739 1740 if (ice_is_reset_in_progress(pf->state)) 1741 vsi->stat_offsets_loaded = false; 1742 1743 ice_stat_update40(hw, GLV_GORCL(vsi_num), vsi->stat_offsets_loaded, 1744 &prev_es->rx_bytes, &cur_es->rx_bytes); 1745 1746 ice_stat_update40(hw, GLV_UPRCL(vsi_num), vsi->stat_offsets_loaded, 1747 &prev_es->rx_unicast, &cur_es->rx_unicast); 1748 1749 ice_stat_update40(hw, GLV_MPRCL(vsi_num), vsi->stat_offsets_loaded, 1750 &prev_es->rx_multicast, &cur_es->rx_multicast); 1751 1752 ice_stat_update40(hw, GLV_BPRCL(vsi_num), vsi->stat_offsets_loaded, 1753 &prev_es->rx_broadcast, &cur_es->rx_broadcast); 1754 1755 ice_stat_update32(hw, GLV_RDPC(vsi_num), vsi->stat_offsets_loaded, 1756 &prev_es->rx_discards, &cur_es->rx_discards); 1757 1758 ice_stat_update40(hw, GLV_GOTCL(vsi_num), vsi->stat_offsets_loaded, 1759 &prev_es->tx_bytes, &cur_es->tx_bytes); 1760 1761 ice_stat_update40(hw, GLV_UPTCL(vsi_num), vsi->stat_offsets_loaded, 1762 &prev_es->tx_unicast, &cur_es->tx_unicast); 1763 1764 ice_stat_update40(hw, GLV_MPTCL(vsi_num), vsi->stat_offsets_loaded, 1765 &prev_es->tx_multicast, &cur_es->tx_multicast); 1766 1767 ice_stat_update40(hw, GLV_BPTCL(vsi_num), vsi->stat_offsets_loaded, 1768 &prev_es->tx_broadcast, &cur_es->tx_broadcast); 1769 1770 ice_stat_update32(hw, GLV_TEPC(vsi_num), vsi->stat_offsets_loaded, 1771 &prev_es->tx_errors, &cur_es->tx_errors); 1772 1773 vsi->stat_offsets_loaded = true; 1774 } 1775 1776 /** 1777 * ice_write_qrxflxp_cntxt - write/configure QRXFLXP_CNTXT register 1778 * @hw: HW pointer 1779 * @pf_q: index of the Rx queue in the PF's queue space 1780 * @rxdid: flexible descriptor RXDID 1781 * @prio: priority for the RXDID for this queue 1782 * @ena_ts: true to enable timestamp and false to disable timestamp 1783 */ 1784 void ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio, 1785 bool ena_ts) 1786 { 1787 int regval = rd32(hw, QRXFLXP_CNTXT(pf_q)); 1788 1789 /* clear any previous values */ 1790 regval &= ~(QRXFLXP_CNTXT_RXDID_IDX_M | 1791 QRXFLXP_CNTXT_RXDID_PRIO_M | 1792 QRXFLXP_CNTXT_TS_M); 1793 1794 regval |= FIELD_PREP(QRXFLXP_CNTXT_RXDID_IDX_M, rxdid); 1795 regval |= FIELD_PREP(QRXFLXP_CNTXT_RXDID_PRIO_M, prio); 1796 1797 if (ena_ts) 1798 /* Enable TimeSync on this queue */ 1799 regval |= QRXFLXP_CNTXT_TS_M; 1800 1801 wr32(hw, QRXFLXP_CNTXT(pf_q), regval); 1802 } 1803 1804 /** 1805 * ice_intrl_usec_to_reg - convert interrupt rate limit to register value 1806 * @intrl: interrupt rate limit in usecs 1807 * @gran: interrupt rate limit granularity in usecs 1808 * 1809 * This function converts a decimal interrupt rate limit in usecs to the format 1810 * expected by firmware. 1811 */ 1812 static u32 ice_intrl_usec_to_reg(u8 intrl, u8 gran) 1813 { 1814 u32 val = intrl / gran; 1815 1816 if (val) 1817 return val | GLINT_RATE_INTRL_ENA_M; 1818 return 0; 1819 } 1820 1821 /** 1822 * ice_write_intrl - write throttle rate limit to interrupt specific register 1823 * @q_vector: pointer to interrupt specific structure 1824 * @intrl: throttle rate limit in microseconds to write 1825 */ 1826 void ice_write_intrl(struct ice_q_vector *q_vector, u8 intrl) 1827 { 1828 struct ice_hw *hw = &q_vector->vsi->back->hw; 1829 1830 wr32(hw, GLINT_RATE(q_vector->reg_idx), 1831 ice_intrl_usec_to_reg(intrl, ICE_INTRL_GRAN_ABOVE_25)); 1832 } 1833 1834 static struct ice_q_vector *ice_pull_qvec_from_rc(struct ice_ring_container *rc) 1835 { 1836 switch (rc->type) { 1837 case ICE_RX_CONTAINER: 1838 if (rc->rx_ring) 1839 return rc->rx_ring->q_vector; 1840 break; 1841 case ICE_TX_CONTAINER: 1842 if (rc->tx_ring) 1843 return rc->tx_ring->q_vector; 1844 break; 1845 default: 1846 break; 1847 } 1848 1849 return NULL; 1850 } 1851 1852 /** 1853 * __ice_write_itr - write throttle rate to register 1854 * @q_vector: pointer to interrupt data structure 1855 * @rc: pointer to ring container 1856 * @itr: throttle rate in microseconds to write 1857 */ 1858 static void __ice_write_itr(struct ice_q_vector *q_vector, 1859 struct ice_ring_container *rc, u16 itr) 1860 { 1861 struct ice_hw *hw = &q_vector->vsi->back->hw; 1862 1863 wr32(hw, GLINT_ITR(rc->itr_idx, q_vector->reg_idx), 1864 ITR_REG_ALIGN(itr) >> ICE_ITR_GRAN_S); 1865 } 1866 1867 /** 1868 * ice_write_itr - write throttle rate to queue specific register 1869 * @rc: pointer to ring container 1870 * @itr: throttle rate in microseconds to write 1871 */ 1872 void ice_write_itr(struct ice_ring_container *rc, u16 itr) 1873 { 1874 struct ice_q_vector *q_vector; 1875 1876 q_vector = ice_pull_qvec_from_rc(rc); 1877 if (!q_vector) 1878 return; 1879 1880 __ice_write_itr(q_vector, rc, itr); 1881 } 1882 1883 /** 1884 * ice_set_q_vector_intrl - set up interrupt rate limiting 1885 * @q_vector: the vector to be configured 1886 * 1887 * Interrupt rate limiting is local to the vector, not per-queue so we must 1888 * detect if either ring container has dynamic moderation enabled to decide 1889 * what to set the interrupt rate limit to via INTRL settings. In the case that 1890 * dynamic moderation is disabled on both, write the value with the cached 1891 * setting to make sure INTRL register matches the user visible value. 1892 */ 1893 void ice_set_q_vector_intrl(struct ice_q_vector *q_vector) 1894 { 1895 if (ITR_IS_DYNAMIC(&q_vector->tx) || ITR_IS_DYNAMIC(&q_vector->rx)) { 1896 /* in the case of dynamic enabled, cap each vector to no more 1897 * than (4 us) 250,000 ints/sec, which allows low latency 1898 * but still less than 500,000 interrupts per second, which 1899 * reduces CPU a bit in the case of the lowest latency 1900 * setting. The 4 here is a value in microseconds. 1901 */ 1902 ice_write_intrl(q_vector, 4); 1903 } else { 1904 ice_write_intrl(q_vector, q_vector->intrl); 1905 } 1906 } 1907 1908 /** 1909 * ice_vsi_cfg_msix - MSIX mode Interrupt Config in the HW 1910 * @vsi: the VSI being configured 1911 * 1912 * This configures MSIX mode interrupts for the PF VSI, and should not be used 1913 * for the VF VSI. 1914 */ 1915 void ice_vsi_cfg_msix(struct ice_vsi *vsi) 1916 { 1917 struct ice_pf *pf = vsi->back; 1918 struct ice_hw *hw = &pf->hw; 1919 u16 txq = 0, rxq = 0; 1920 int i, q; 1921 1922 ice_for_each_q_vector(vsi, i) { 1923 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 1924 u16 reg_idx = q_vector->reg_idx; 1925 1926 ice_cfg_itr(hw, q_vector); 1927 1928 /* Both Transmit Queue Interrupt Cause Control register 1929 * and Receive Queue Interrupt Cause control register 1930 * expects MSIX_INDX field to be the vector index 1931 * within the function space and not the absolute 1932 * vector index across PF or across device. 1933 * For SR-IOV VF VSIs queue vector index always starts 1934 * with 1 since first vector index(0) is used for OICR 1935 * in VF space. Since VMDq and other PF VSIs are within 1936 * the PF function space, use the vector index that is 1937 * tracked for this PF. 1938 */ 1939 for (q = 0; q < q_vector->num_ring_tx; q++) { 1940 ice_cfg_txq_interrupt(vsi, txq, reg_idx, 1941 q_vector->tx.itr_idx); 1942 txq++; 1943 } 1944 1945 for (q = 0; q < q_vector->num_ring_rx; q++) { 1946 ice_cfg_rxq_interrupt(vsi, rxq, reg_idx, 1947 q_vector->rx.itr_idx); 1948 rxq++; 1949 } 1950 } 1951 } 1952 1953 /** 1954 * ice_vsi_start_all_rx_rings - start/enable all of a VSI's Rx rings 1955 * @vsi: the VSI whose rings are to be enabled 1956 * 1957 * Returns 0 on success and a negative value on error 1958 */ 1959 int ice_vsi_start_all_rx_rings(struct ice_vsi *vsi) 1960 { 1961 return ice_vsi_ctrl_all_rx_rings(vsi, true); 1962 } 1963 1964 /** 1965 * ice_vsi_stop_all_rx_rings - stop/disable all of a VSI's Rx rings 1966 * @vsi: the VSI whose rings are to be disabled 1967 * 1968 * Returns 0 on success and a negative value on error 1969 */ 1970 int ice_vsi_stop_all_rx_rings(struct ice_vsi *vsi) 1971 { 1972 return ice_vsi_ctrl_all_rx_rings(vsi, false); 1973 } 1974 1975 /** 1976 * ice_vsi_stop_tx_rings - Disable Tx rings 1977 * @vsi: the VSI being configured 1978 * @rst_src: reset source 1979 * @rel_vmvf_num: Relative ID of VF/VM 1980 * @rings: Tx ring array to be stopped 1981 * @count: number of Tx ring array elements 1982 */ 1983 static int 1984 ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, 1985 u16 rel_vmvf_num, struct ice_tx_ring **rings, u16 count) 1986 { 1987 u16 q_idx; 1988 1989 if (vsi->num_txq > ICE_LAN_TXQ_MAX_QDIS) 1990 return -EINVAL; 1991 1992 for (q_idx = 0; q_idx < count; q_idx++) { 1993 struct ice_txq_meta txq_meta = { }; 1994 int status; 1995 1996 if (!rings || !rings[q_idx]) 1997 return -EINVAL; 1998 1999 ice_fill_txq_meta(vsi, rings[q_idx], &txq_meta); 2000 status = ice_vsi_stop_tx_ring(vsi, rst_src, rel_vmvf_num, 2001 rings[q_idx], &txq_meta); 2002 2003 if (status) 2004 return status; 2005 } 2006 2007 return 0; 2008 } 2009 2010 /** 2011 * ice_vsi_stop_lan_tx_rings - Disable LAN Tx rings 2012 * @vsi: the VSI being configured 2013 * @rst_src: reset source 2014 * @rel_vmvf_num: Relative ID of VF/VM 2015 */ 2016 int 2017 ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, 2018 u16 rel_vmvf_num) 2019 { 2020 return ice_vsi_stop_tx_rings(vsi, rst_src, rel_vmvf_num, vsi->tx_rings, vsi->num_txq); 2021 } 2022 2023 /** 2024 * ice_vsi_stop_xdp_tx_rings - Disable XDP Tx rings 2025 * @vsi: the VSI being configured 2026 */ 2027 int ice_vsi_stop_xdp_tx_rings(struct ice_vsi *vsi) 2028 { 2029 return ice_vsi_stop_tx_rings(vsi, ICE_NO_RESET, 0, vsi->xdp_rings, vsi->num_xdp_txq); 2030 } 2031 2032 /** 2033 * ice_vsi_is_rx_queue_active 2034 * @vsi: the VSI being configured 2035 * 2036 * Return true if at least one queue is active. 2037 */ 2038 bool ice_vsi_is_rx_queue_active(struct ice_vsi *vsi) 2039 { 2040 struct ice_pf *pf = vsi->back; 2041 struct ice_hw *hw = &pf->hw; 2042 int i; 2043 2044 ice_for_each_rxq(vsi, i) { 2045 u32 rx_reg; 2046 int pf_q; 2047 2048 pf_q = vsi->rxq_map[i]; 2049 rx_reg = rd32(hw, QRX_CTRL(pf_q)); 2050 if (rx_reg & QRX_CTRL_QENA_STAT_M) 2051 return true; 2052 } 2053 2054 return false; 2055 } 2056 2057 static void ice_vsi_set_tc_cfg(struct ice_vsi *vsi) 2058 { 2059 if (!test_bit(ICE_FLAG_DCB_ENA, vsi->back->flags)) { 2060 vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; 2061 vsi->tc_cfg.numtc = 1; 2062 return; 2063 } 2064 2065 /* set VSI TC information based on DCB config */ 2066 ice_vsi_set_dcb_tc_cfg(vsi); 2067 } 2068 2069 /** 2070 * ice_vsi_cfg_sw_lldp - Config switch rules for LLDP packet handling 2071 * @vsi: the VSI being configured 2072 * @tx: bool to determine Tx or Rx rule 2073 * @create: bool to determine create or remove Rule 2074 * 2075 * Adding an ethtype Tx rule to the uplink VSI results in it being applied 2076 * to the whole port, so LLDP transmission for VFs will be blocked too. 2077 */ 2078 void ice_vsi_cfg_sw_lldp(struct ice_vsi *vsi, bool tx, bool create) 2079 { 2080 int (*eth_fltr)(struct ice_vsi *v, u16 type, u16 flag, 2081 enum ice_sw_fwd_act_type act); 2082 struct ice_pf *pf = vsi->back; 2083 struct device *dev; 2084 int status; 2085 2086 dev = ice_pf_to_dev(pf); 2087 eth_fltr = create ? ice_fltr_add_eth : ice_fltr_remove_eth; 2088 2089 if (tx) { 2090 status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_TX, 2091 ICE_DROP_PACKET); 2092 } else { 2093 if (!test_bit(ICE_FLAG_LLDP_AQ_FLTR, pf->flags)) { 2094 status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_RX, 2095 ICE_FWD_TO_VSI); 2096 if (!status || !create) 2097 goto report; 2098 2099 dev_info(dev, 2100 "Failed to add generic LLDP Rx filter on VSI %i error: %d, falling back to specialized AQ control\n", 2101 vsi->vsi_num, status); 2102 } 2103 2104 status = ice_lldp_fltr_add_remove(&pf->hw, vsi, create); 2105 if (!status) 2106 set_bit(ICE_FLAG_LLDP_AQ_FLTR, pf->flags); 2107 2108 } 2109 2110 report: 2111 if (status) 2112 dev_warn(dev, "Failed to %s %s LLDP rule on VSI %i error: %d\n", 2113 create ? "add" : "remove", tx ? "Tx" : "Rx", 2114 vsi->vsi_num, status); 2115 } 2116 2117 /** 2118 * ice_cfg_sw_rx_lldp - Enable/disable software handling of LLDP 2119 * @pf: the PF being configured 2120 * @enable: enable or disable 2121 * 2122 * Configure switch rules to enable/disable LLDP handling by software 2123 * across PF. 2124 */ 2125 void ice_cfg_sw_rx_lldp(struct ice_pf *pf, bool enable) 2126 { 2127 struct ice_vsi *vsi; 2128 struct ice_vf *vf; 2129 unsigned int bkt; 2130 2131 vsi = ice_get_main_vsi(pf); 2132 ice_vsi_cfg_sw_lldp(vsi, false, enable); 2133 2134 if (!test_bit(ICE_FLAG_SRIOV_ENA, pf->flags)) 2135 return; 2136 2137 ice_for_each_vf(pf, bkt, vf) { 2138 vsi = ice_get_vf_vsi(vf); 2139 2140 if (WARN_ON(!vsi)) 2141 continue; 2142 2143 if (ice_vf_is_lldp_ena(vf)) 2144 ice_vsi_cfg_sw_lldp(vsi, false, enable); 2145 } 2146 } 2147 2148 /** 2149 * ice_set_agg_vsi - sets up scheduler aggregator node and move VSI into it 2150 * @vsi: pointer to the VSI 2151 * 2152 * This function will allocate new scheduler aggregator now if needed and will 2153 * move specified VSI into it. 2154 */ 2155 static void ice_set_agg_vsi(struct ice_vsi *vsi) 2156 { 2157 struct device *dev = ice_pf_to_dev(vsi->back); 2158 struct ice_agg_node *agg_node_iter = NULL; 2159 u32 agg_id = ICE_INVALID_AGG_NODE_ID; 2160 struct ice_agg_node *agg_node = NULL; 2161 int node_offset, max_agg_nodes = 0; 2162 struct ice_port_info *port_info; 2163 struct ice_pf *pf = vsi->back; 2164 u32 agg_node_id_start = 0; 2165 int status; 2166 2167 /* create (as needed) scheduler aggregator node and move VSI into 2168 * corresponding aggregator node 2169 * - PF aggregator node to contains VSIs of type _PF and _CTRL 2170 * - VF aggregator nodes will contain VF VSI 2171 */ 2172 port_info = pf->hw.port_info; 2173 if (!port_info) 2174 return; 2175 2176 switch (vsi->type) { 2177 case ICE_VSI_CTRL: 2178 case ICE_VSI_CHNL: 2179 case ICE_VSI_LB: 2180 case ICE_VSI_PF: 2181 case ICE_VSI_SF: 2182 max_agg_nodes = ICE_MAX_PF_AGG_NODES; 2183 agg_node_id_start = ICE_PF_AGG_NODE_ID_START; 2184 agg_node_iter = &pf->pf_agg_node[0]; 2185 break; 2186 case ICE_VSI_VF: 2187 /* user can create 'n' VFs on a given PF, but since max children 2188 * per aggregator node can be only 64. Following code handles 2189 * aggregator(s) for VF VSIs, either selects a agg_node which 2190 * was already created provided num_vsis < 64, otherwise 2191 * select next available node, which will be created 2192 */ 2193 max_agg_nodes = ICE_MAX_VF_AGG_NODES; 2194 agg_node_id_start = ICE_VF_AGG_NODE_ID_START; 2195 agg_node_iter = &pf->vf_agg_node[0]; 2196 break; 2197 default: 2198 /* other VSI type, handle later if needed */ 2199 dev_dbg(dev, "unexpected VSI type %s\n", 2200 ice_vsi_type_str(vsi->type)); 2201 return; 2202 } 2203 2204 /* find the appropriate aggregator node */ 2205 for (node_offset = 0; node_offset < max_agg_nodes; node_offset++) { 2206 /* see if we can find space in previously created 2207 * node if num_vsis < 64, otherwise skip 2208 */ 2209 if (agg_node_iter->num_vsis && 2210 agg_node_iter->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) { 2211 agg_node_iter++; 2212 continue; 2213 } 2214 2215 if (agg_node_iter->valid && 2216 agg_node_iter->agg_id != ICE_INVALID_AGG_NODE_ID) { 2217 agg_id = agg_node_iter->agg_id; 2218 agg_node = agg_node_iter; 2219 break; 2220 } 2221 2222 /* find unclaimed agg_id */ 2223 if (agg_node_iter->agg_id == ICE_INVALID_AGG_NODE_ID) { 2224 agg_id = node_offset + agg_node_id_start; 2225 agg_node = agg_node_iter; 2226 break; 2227 } 2228 /* move to next agg_node */ 2229 agg_node_iter++; 2230 } 2231 2232 if (!agg_node) 2233 return; 2234 2235 /* if selected aggregator node was not created, create it */ 2236 if (!agg_node->valid) { 2237 status = ice_cfg_agg(port_info, agg_id, ICE_AGG_TYPE_AGG, 2238 (u8)vsi->tc_cfg.ena_tc); 2239 if (status) { 2240 dev_err(dev, "unable to create aggregator node with agg_id %u\n", 2241 agg_id); 2242 return; 2243 } 2244 /* aggregator node is created, store the needed info */ 2245 agg_node->valid = true; 2246 agg_node->agg_id = agg_id; 2247 } 2248 2249 /* move VSI to corresponding aggregator node */ 2250 status = ice_move_vsi_to_agg(port_info, agg_id, vsi->idx, 2251 (u8)vsi->tc_cfg.ena_tc); 2252 if (status) { 2253 dev_err(dev, "unable to move VSI idx %u into aggregator %u node", 2254 vsi->idx, agg_id); 2255 return; 2256 } 2257 2258 /* keep active children count for aggregator node */ 2259 agg_node->num_vsis++; 2260 2261 /* cache the 'agg_id' in VSI, so that after reset - VSI will be moved 2262 * to aggregator node 2263 */ 2264 vsi->agg_node = agg_node; 2265 dev_dbg(dev, "successfully moved VSI idx %u tc_bitmap 0x%x) into aggregator node %d which has num_vsis %u\n", 2266 vsi->idx, vsi->tc_cfg.ena_tc, vsi->agg_node->agg_id, 2267 vsi->agg_node->num_vsis); 2268 } 2269 2270 static int ice_vsi_cfg_tc_lan(struct ice_pf *pf, struct ice_vsi *vsi) 2271 { 2272 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; 2273 struct device *dev = ice_pf_to_dev(pf); 2274 int ret, i; 2275 2276 /* configure VSI nodes based on number of queues and TC's */ 2277 ice_for_each_traffic_class(i) { 2278 if (!(vsi->tc_cfg.ena_tc & BIT(i))) 2279 continue; 2280 2281 if (vsi->type == ICE_VSI_CHNL) { 2282 if (!vsi->alloc_txq && vsi->num_txq) 2283 max_txqs[i] = vsi->num_txq; 2284 else 2285 max_txqs[i] = pf->num_lan_tx; 2286 } else { 2287 max_txqs[i] = vsi->alloc_txq; 2288 } 2289 2290 if (vsi->type == ICE_VSI_PF) 2291 max_txqs[i] += vsi->num_xdp_txq; 2292 } 2293 2294 dev_dbg(dev, "vsi->tc_cfg.ena_tc = %d\n", vsi->tc_cfg.ena_tc); 2295 ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, 2296 max_txqs); 2297 if (ret) { 2298 dev_err(dev, "VSI %d failed lan queue config, error %d\n", 2299 vsi->vsi_num, ret); 2300 return ret; 2301 } 2302 2303 return 0; 2304 } 2305 2306 /** 2307 * ice_vsi_cfg_def - configure default VSI based on the type 2308 * @vsi: pointer to VSI 2309 */ 2310 static int ice_vsi_cfg_def(struct ice_vsi *vsi) 2311 { 2312 struct device *dev = ice_pf_to_dev(vsi->back); 2313 struct ice_pf *pf = vsi->back; 2314 int ret; 2315 2316 vsi->vsw = pf->first_sw; 2317 2318 ret = ice_vsi_alloc_def(vsi, vsi->ch); 2319 if (ret) 2320 return ret; 2321 2322 /* allocate memory for Tx/Rx ring stat pointers */ 2323 ret = ice_vsi_alloc_stat_arrays(vsi); 2324 if (ret) 2325 goto unroll_vsi_alloc; 2326 2327 ice_alloc_fd_res(vsi); 2328 2329 ret = ice_vsi_get_qs(vsi); 2330 if (ret) { 2331 dev_err(dev, "Failed to allocate queues. vsi->idx = %d\n", 2332 vsi->idx); 2333 goto unroll_vsi_alloc_stat; 2334 } 2335 2336 /* set RSS capabilities */ 2337 ice_vsi_set_rss_params(vsi); 2338 2339 /* set TC configuration */ 2340 ice_vsi_set_tc_cfg(vsi); 2341 2342 /* create the VSI */ 2343 ret = ice_vsi_init(vsi, vsi->flags); 2344 if (ret) 2345 goto unroll_get_qs; 2346 2347 ice_vsi_init_vlan_ops(vsi); 2348 2349 switch (vsi->type) { 2350 case ICE_VSI_CTRL: 2351 case ICE_VSI_SF: 2352 case ICE_VSI_PF: 2353 ret = ice_vsi_alloc_q_vectors(vsi); 2354 if (ret) 2355 goto unroll_vsi_init; 2356 2357 ret = ice_vsi_alloc_rings(vsi); 2358 if (ret) 2359 goto unroll_vector_base; 2360 2361 ret = ice_vsi_alloc_ring_stats(vsi); 2362 if (ret) 2363 goto unroll_vector_base; 2364 2365 if (ice_is_xdp_ena_vsi(vsi)) { 2366 ret = ice_vsi_determine_xdp_res(vsi); 2367 if (ret) 2368 goto unroll_vector_base; 2369 ret = ice_prepare_xdp_rings(vsi, vsi->xdp_prog, 2370 ICE_XDP_CFG_PART); 2371 if (ret) 2372 goto unroll_vector_base; 2373 } 2374 2375 ice_vsi_map_rings_to_vectors(vsi); 2376 2377 vsi->stat_offsets_loaded = false; 2378 2379 /* ICE_VSI_CTRL does not need RSS so skip RSS processing */ 2380 if (vsi->type != ICE_VSI_CTRL) 2381 /* Do not exit if configuring RSS had an issue, at 2382 * least receive traffic on first queue. Hence no 2383 * need to capture return value 2384 */ 2385 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 2386 ice_vsi_cfg_rss_lut_key(vsi); 2387 ice_vsi_set_rss_flow_fld(vsi); 2388 } 2389 ice_init_arfs(vsi); 2390 break; 2391 case ICE_VSI_CHNL: 2392 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 2393 ice_vsi_cfg_rss_lut_key(vsi); 2394 ice_vsi_set_rss_flow_fld(vsi); 2395 } 2396 break; 2397 case ICE_VSI_VF: 2398 /* VF driver will take care of creating netdev for this type and 2399 * map queues to vectors through Virtchnl, PF driver only 2400 * creates a VSI and corresponding structures for bookkeeping 2401 * purpose 2402 */ 2403 ret = ice_vsi_alloc_q_vectors(vsi); 2404 if (ret) 2405 goto unroll_vsi_init; 2406 2407 ret = ice_vsi_alloc_rings(vsi); 2408 if (ret) 2409 goto unroll_alloc_q_vector; 2410 2411 ret = ice_vsi_alloc_ring_stats(vsi); 2412 if (ret) 2413 goto unroll_vector_base; 2414 2415 vsi->stat_offsets_loaded = false; 2416 2417 /* Do not exit if configuring RSS had an issue, at least 2418 * receive traffic on first queue. Hence no need to capture 2419 * return value 2420 */ 2421 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 2422 ice_vsi_cfg_rss_lut_key(vsi); 2423 ice_vsi_set_vf_rss_flow_fld(vsi); 2424 } 2425 break; 2426 case ICE_VSI_LB: 2427 ret = ice_vsi_alloc_q_vectors(vsi); 2428 if (ret) 2429 goto unroll_vsi_init; 2430 2431 ret = ice_vsi_alloc_rings(vsi); 2432 if (ret) 2433 goto unroll_alloc_q_vector; 2434 2435 ret = ice_vsi_alloc_ring_stats(vsi); 2436 if (ret) 2437 goto unroll_vector_base; 2438 2439 /* Simply map the dummy q_vector to the only rx_ring */ 2440 vsi->rx_rings[0]->q_vector = vsi->q_vectors[0]; 2441 2442 break; 2443 default: 2444 /* clean up the resources and exit */ 2445 ret = -EINVAL; 2446 goto unroll_vsi_init; 2447 } 2448 2449 return 0; 2450 2451 unroll_vector_base: 2452 /* reclaim SW interrupts back to the common pool */ 2453 unroll_alloc_q_vector: 2454 ice_vsi_free_q_vectors(vsi); 2455 unroll_vsi_init: 2456 ice_vsi_delete_from_hw(vsi); 2457 unroll_get_qs: 2458 ice_vsi_put_qs(vsi); 2459 unroll_vsi_alloc_stat: 2460 ice_vsi_free_stats(vsi); 2461 unroll_vsi_alloc: 2462 ice_vsi_free_arrays(vsi); 2463 return ret; 2464 } 2465 2466 /** 2467 * ice_vsi_cfg - configure a previously allocated VSI 2468 * @vsi: pointer to VSI 2469 */ 2470 int ice_vsi_cfg(struct ice_vsi *vsi) 2471 { 2472 struct ice_pf *pf = vsi->back; 2473 int ret; 2474 2475 if (WARN_ON(vsi->type == ICE_VSI_VF && !vsi->vf)) 2476 return -EINVAL; 2477 2478 ret = ice_vsi_cfg_def(vsi); 2479 if (ret) 2480 return ret; 2481 2482 ret = ice_vsi_cfg_tc_lan(vsi->back, vsi); 2483 if (ret) 2484 ice_vsi_decfg(vsi); 2485 2486 if (vsi->type == ICE_VSI_CTRL) { 2487 if (vsi->vf) { 2488 WARN_ON(vsi->vf->ctrl_vsi_idx != ICE_NO_VSI); 2489 vsi->vf->ctrl_vsi_idx = vsi->idx; 2490 } else { 2491 WARN_ON(pf->ctrl_vsi_idx != ICE_NO_VSI); 2492 pf->ctrl_vsi_idx = vsi->idx; 2493 } 2494 } 2495 2496 return ret; 2497 } 2498 2499 /** 2500 * ice_vsi_decfg - remove all VSI configuration 2501 * @vsi: pointer to VSI 2502 */ 2503 void ice_vsi_decfg(struct ice_vsi *vsi) 2504 { 2505 struct ice_pf *pf = vsi->back; 2506 int err; 2507 2508 ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx); 2509 err = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx); 2510 if (err) 2511 dev_err(ice_pf_to_dev(pf), "Failed to remove RDMA scheduler config for VSI %u, err %d\n", 2512 vsi->vsi_num, err); 2513 2514 if (vsi->xdp_rings) 2515 /* return value check can be skipped here, it always returns 2516 * 0 if reset is in progress 2517 */ 2518 ice_destroy_xdp_rings(vsi, ICE_XDP_CFG_PART); 2519 2520 ice_vsi_clear_rings(vsi); 2521 ice_vsi_free_q_vectors(vsi); 2522 ice_vsi_put_qs(vsi); 2523 ice_vsi_free_arrays(vsi); 2524 2525 /* SR-IOV determines needed MSIX resources all at once instead of per 2526 * VSI since when VFs are spawned we know how many VFs there are and how 2527 * many interrupts each VF needs. SR-IOV MSIX resources are also 2528 * cleared in the same manner. 2529 */ 2530 2531 if (vsi->type == ICE_VSI_VF && 2532 vsi->agg_node && vsi->agg_node->valid) 2533 vsi->agg_node->num_vsis--; 2534 } 2535 2536 /** 2537 * ice_vsi_setup - Set up a VSI by a given type 2538 * @pf: board private structure 2539 * @params: parameters to use when creating the VSI 2540 * 2541 * This allocates the sw VSI structure and its queue resources. 2542 * 2543 * Returns pointer to the successfully allocated and configured VSI sw struct on 2544 * success, NULL on failure. 2545 */ 2546 struct ice_vsi * 2547 ice_vsi_setup(struct ice_pf *pf, struct ice_vsi_cfg_params *params) 2548 { 2549 struct device *dev = ice_pf_to_dev(pf); 2550 struct ice_vsi *vsi; 2551 int ret; 2552 2553 /* ice_vsi_setup can only initialize a new VSI, and we must have 2554 * a port_info structure for it. 2555 */ 2556 if (WARN_ON(!(params->flags & ICE_VSI_FLAG_INIT)) || 2557 WARN_ON(!params->port_info)) 2558 return NULL; 2559 2560 vsi = ice_vsi_alloc(pf); 2561 if (!vsi) { 2562 dev_err(dev, "could not allocate VSI\n"); 2563 return NULL; 2564 } 2565 2566 vsi->params = *params; 2567 ret = ice_vsi_cfg(vsi); 2568 if (ret) 2569 goto err_vsi_cfg; 2570 2571 /* Add switch rule to drop all Tx Flow Control Frames, of look up 2572 * type ETHERTYPE from VSIs, and restrict malicious VF from sending 2573 * out PAUSE or PFC frames. If enabled, FW can still send FC frames. 2574 * The rule is added once for PF VSI in order to create appropriate 2575 * recipe, since VSI/VSI list is ignored with drop action... 2576 * Also add rules to handle LLDP Tx packets. Tx LLDP packets need to 2577 * be dropped so that VFs cannot send LLDP packets to reconfig DCB 2578 * settings in the HW. 2579 */ 2580 if (!ice_is_safe_mode(pf) && vsi->type == ICE_VSI_PF) { 2581 ice_fltr_add_eth(vsi, ETH_P_PAUSE, ICE_FLTR_TX, 2582 ICE_DROP_PACKET); 2583 ice_vsi_cfg_sw_lldp(vsi, true, true); 2584 } 2585 2586 if (!vsi->agg_node) 2587 ice_set_agg_vsi(vsi); 2588 2589 return vsi; 2590 2591 err_vsi_cfg: 2592 ice_vsi_free(vsi); 2593 2594 return NULL; 2595 } 2596 2597 /** 2598 * ice_vsi_release_msix - Clear the queue to Interrupt mapping in HW 2599 * @vsi: the VSI being cleaned up 2600 */ 2601 static void ice_vsi_release_msix(struct ice_vsi *vsi) 2602 { 2603 struct ice_pf *pf = vsi->back; 2604 struct ice_hw *hw = &pf->hw; 2605 u32 txq = 0; 2606 u32 rxq = 0; 2607 int i, q; 2608 2609 ice_for_each_q_vector(vsi, i) { 2610 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 2611 2612 ice_write_intrl(q_vector, 0); 2613 for (q = 0; q < q_vector->num_ring_tx; q++) { 2614 ice_write_itr(&q_vector->tx, 0); 2615 wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), 0); 2616 if (vsi->xdp_rings) { 2617 u32 xdp_txq = txq + vsi->num_xdp_txq; 2618 2619 wr32(hw, QINT_TQCTL(vsi->txq_map[xdp_txq]), 0); 2620 } 2621 txq++; 2622 } 2623 2624 for (q = 0; q < q_vector->num_ring_rx; q++) { 2625 ice_write_itr(&q_vector->rx, 0); 2626 wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), 0); 2627 rxq++; 2628 } 2629 } 2630 2631 ice_flush(hw); 2632 } 2633 2634 /** 2635 * ice_vsi_free_irq - Free the IRQ association with the OS 2636 * @vsi: the VSI being configured 2637 */ 2638 void ice_vsi_free_irq(struct ice_vsi *vsi) 2639 { 2640 struct ice_pf *pf = vsi->back; 2641 int i; 2642 2643 if (!vsi->q_vectors || !vsi->irqs_ready) 2644 return; 2645 2646 ice_vsi_release_msix(vsi); 2647 if (vsi->type == ICE_VSI_VF) 2648 return; 2649 2650 vsi->irqs_ready = false; 2651 2652 ice_for_each_q_vector(vsi, i) { 2653 int irq_num; 2654 2655 irq_num = vsi->q_vectors[i]->irq.virq; 2656 2657 /* free only the irqs that were actually requested */ 2658 if (!vsi->q_vectors[i] || 2659 !(vsi->q_vectors[i]->num_ring_tx || 2660 vsi->q_vectors[i]->num_ring_rx)) 2661 continue; 2662 2663 synchronize_irq(irq_num); 2664 devm_free_irq(ice_pf_to_dev(pf), irq_num, vsi->q_vectors[i]); 2665 } 2666 } 2667 2668 /** 2669 * ice_vsi_free_tx_rings - Free Tx resources for VSI queues 2670 * @vsi: the VSI having resources freed 2671 */ 2672 void ice_vsi_free_tx_rings(struct ice_vsi *vsi) 2673 { 2674 int i; 2675 2676 if (!vsi->tx_rings) 2677 return; 2678 2679 ice_for_each_txq(vsi, i) 2680 if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) 2681 ice_free_tx_ring(vsi->tx_rings[i]); 2682 } 2683 2684 /** 2685 * ice_vsi_free_rx_rings - Free Rx resources for VSI queues 2686 * @vsi: the VSI having resources freed 2687 */ 2688 void ice_vsi_free_rx_rings(struct ice_vsi *vsi) 2689 { 2690 int i; 2691 2692 if (!vsi->rx_rings) 2693 return; 2694 2695 ice_for_each_rxq(vsi, i) 2696 if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc) 2697 ice_free_rx_ring(vsi->rx_rings[i]); 2698 } 2699 2700 /** 2701 * ice_vsi_close - Shut down a VSI 2702 * @vsi: the VSI being shut down 2703 */ 2704 void ice_vsi_close(struct ice_vsi *vsi) 2705 { 2706 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) 2707 ice_down(vsi); 2708 2709 ice_vsi_clear_napi_queues(vsi); 2710 ice_vsi_free_irq(vsi); 2711 ice_vsi_free_tx_rings(vsi); 2712 ice_vsi_free_rx_rings(vsi); 2713 } 2714 2715 /** 2716 * ice_ena_vsi - resume a VSI 2717 * @vsi: the VSI being resume 2718 * @locked: is the rtnl_lock already held 2719 */ 2720 int ice_ena_vsi(struct ice_vsi *vsi, bool locked) 2721 { 2722 int err = 0; 2723 2724 if (!test_bit(ICE_VSI_NEEDS_RESTART, vsi->state)) 2725 return 0; 2726 2727 clear_bit(ICE_VSI_NEEDS_RESTART, vsi->state); 2728 2729 if (vsi->netdev && (vsi->type == ICE_VSI_PF || 2730 vsi->type == ICE_VSI_SF)) { 2731 if (netif_running(vsi->netdev)) { 2732 if (!locked) 2733 rtnl_lock(); 2734 2735 err = ice_open_internal(vsi->netdev); 2736 2737 if (!locked) 2738 rtnl_unlock(); 2739 } 2740 } else if (vsi->type == ICE_VSI_CTRL) { 2741 err = ice_vsi_open_ctrl(vsi); 2742 } 2743 2744 return err; 2745 } 2746 2747 /** 2748 * ice_dis_vsi - pause a VSI 2749 * @vsi: the VSI being paused 2750 * @locked: is the rtnl_lock already held 2751 */ 2752 void ice_dis_vsi(struct ice_vsi *vsi, bool locked) 2753 { 2754 bool already_down = test_bit(ICE_VSI_DOWN, vsi->state); 2755 2756 set_bit(ICE_VSI_NEEDS_RESTART, vsi->state); 2757 2758 if (vsi->netdev && (vsi->type == ICE_VSI_PF || 2759 vsi->type == ICE_VSI_SF)) { 2760 if (netif_running(vsi->netdev)) { 2761 if (!locked) 2762 rtnl_lock(); 2763 already_down = test_bit(ICE_VSI_DOWN, vsi->state); 2764 if (!already_down) 2765 ice_vsi_close(vsi); 2766 2767 if (!locked) 2768 rtnl_unlock(); 2769 } else if (!already_down) { 2770 ice_vsi_close(vsi); 2771 } 2772 } else if (vsi->type == ICE_VSI_CTRL && !already_down) { 2773 ice_vsi_close(vsi); 2774 } 2775 } 2776 2777 /** 2778 * ice_vsi_set_napi_queues - associate netdev queues with napi 2779 * @vsi: VSI pointer 2780 * 2781 * Associate queue[s] with napi for all vectors. 2782 */ 2783 void ice_vsi_set_napi_queues(struct ice_vsi *vsi) 2784 { 2785 struct net_device *netdev = vsi->netdev; 2786 int q_idx, v_idx; 2787 2788 if (!netdev) 2789 return; 2790 2791 ASSERT_RTNL(); 2792 ice_for_each_rxq(vsi, q_idx) 2793 if (vsi->rx_rings[q_idx] && vsi->rx_rings[q_idx]->q_vector) 2794 netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_RX, 2795 &vsi->rx_rings[q_idx]->q_vector->napi); 2796 2797 ice_for_each_txq(vsi, q_idx) 2798 if (vsi->tx_rings[q_idx] && vsi->tx_rings[q_idx]->q_vector) 2799 netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_TX, 2800 &vsi->tx_rings[q_idx]->q_vector->napi); 2801 /* Also set the interrupt number for the NAPI */ 2802 ice_for_each_q_vector(vsi, v_idx) { 2803 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx]; 2804 2805 netif_napi_set_irq(&q_vector->napi, q_vector->irq.virq); 2806 } 2807 } 2808 2809 /** 2810 * ice_vsi_clear_napi_queues - dissociate netdev queues from napi 2811 * @vsi: VSI pointer 2812 * 2813 * Clear the association between all VSI queues queue[s] and napi. 2814 */ 2815 void ice_vsi_clear_napi_queues(struct ice_vsi *vsi) 2816 { 2817 struct net_device *netdev = vsi->netdev; 2818 int q_idx, v_idx; 2819 2820 if (!netdev) 2821 return; 2822 2823 ASSERT_RTNL(); 2824 /* Clear the NAPI's interrupt number */ 2825 ice_for_each_q_vector(vsi, v_idx) { 2826 struct ice_q_vector *q_vector = vsi->q_vectors[v_idx]; 2827 2828 netif_napi_set_irq(&q_vector->napi, -1); 2829 } 2830 2831 ice_for_each_txq(vsi, q_idx) 2832 netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_TX, NULL); 2833 2834 ice_for_each_rxq(vsi, q_idx) 2835 netif_queue_set_napi(netdev, q_idx, NETDEV_QUEUE_TYPE_RX, NULL); 2836 } 2837 2838 /** 2839 * ice_napi_add - register NAPI handler for the VSI 2840 * @vsi: VSI for which NAPI handler is to be registered 2841 * 2842 * This function is only called in the driver's load path. Registering the NAPI 2843 * handler is done in ice_vsi_alloc_q_vector() for all other cases (i.e. resume, 2844 * reset/rebuild, etc.) 2845 */ 2846 void ice_napi_add(struct ice_vsi *vsi) 2847 { 2848 int v_idx; 2849 2850 if (!vsi->netdev) 2851 return; 2852 2853 ice_for_each_q_vector(vsi, v_idx) 2854 netif_napi_add_config(vsi->netdev, 2855 &vsi->q_vectors[v_idx]->napi, 2856 ice_napi_poll, 2857 v_idx); 2858 } 2859 2860 /** 2861 * ice_vsi_release - Delete a VSI and free its resources 2862 * @vsi: the VSI being removed 2863 * 2864 * Returns 0 on success or < 0 on error 2865 */ 2866 int ice_vsi_release(struct ice_vsi *vsi) 2867 { 2868 struct ice_pf *pf; 2869 2870 if (!vsi->back) 2871 return -ENODEV; 2872 pf = vsi->back; 2873 2874 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) 2875 ice_rss_clean(vsi); 2876 2877 ice_vsi_close(vsi); 2878 2879 /* The Rx rule will only exist to remove if the LLDP FW 2880 * engine is currently stopped 2881 */ 2882 if (!ice_is_safe_mode(pf) && 2883 !test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags) && 2884 (vsi->type == ICE_VSI_PF || (vsi->type == ICE_VSI_VF && 2885 ice_vf_is_lldp_ena(vsi->vf)))) 2886 ice_vsi_cfg_sw_lldp(vsi, false, false); 2887 2888 ice_vsi_decfg(vsi); 2889 2890 /* retain SW VSI data structure since it is needed to unregister and 2891 * free VSI netdev when PF is not in reset recovery pending state,\ 2892 * for ex: during rmmod. 2893 */ 2894 if (!ice_is_reset_in_progress(pf->state)) 2895 ice_vsi_delete(vsi); 2896 2897 return 0; 2898 } 2899 2900 /** 2901 * ice_vsi_rebuild_get_coalesce - get coalesce from all q_vectors 2902 * @vsi: VSI connected with q_vectors 2903 * @coalesce: array of struct with stored coalesce 2904 * 2905 * Returns array size. 2906 */ 2907 static int 2908 ice_vsi_rebuild_get_coalesce(struct ice_vsi *vsi, 2909 struct ice_coalesce_stored *coalesce) 2910 { 2911 int i; 2912 2913 ice_for_each_q_vector(vsi, i) { 2914 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 2915 2916 coalesce[i].itr_tx = q_vector->tx.itr_settings; 2917 coalesce[i].itr_rx = q_vector->rx.itr_settings; 2918 coalesce[i].intrl = q_vector->intrl; 2919 2920 if (i < vsi->num_txq) 2921 coalesce[i].tx_valid = true; 2922 if (i < vsi->num_rxq) 2923 coalesce[i].rx_valid = true; 2924 } 2925 2926 return vsi->num_q_vectors; 2927 } 2928 2929 /** 2930 * ice_vsi_rebuild_set_coalesce - set coalesce from earlier saved arrays 2931 * @vsi: VSI connected with q_vectors 2932 * @coalesce: pointer to array of struct with stored coalesce 2933 * @size: size of coalesce array 2934 * 2935 * Before this function, ice_vsi_rebuild_get_coalesce should be called to save 2936 * ITR params in arrays. If size is 0 or coalesce wasn't stored set coalesce 2937 * to default value. 2938 */ 2939 static void 2940 ice_vsi_rebuild_set_coalesce(struct ice_vsi *vsi, 2941 struct ice_coalesce_stored *coalesce, int size) 2942 { 2943 struct ice_ring_container *rc; 2944 int i; 2945 2946 if ((size && !coalesce) || !vsi) 2947 return; 2948 2949 /* There are a couple of cases that have to be handled here: 2950 * 1. The case where the number of queue vectors stays the same, but 2951 * the number of Tx or Rx rings changes (the first for loop) 2952 * 2. The case where the number of queue vectors increased (the 2953 * second for loop) 2954 */ 2955 for (i = 0; i < size && i < vsi->num_q_vectors; i++) { 2956 /* There are 2 cases to handle here and they are the same for 2957 * both Tx and Rx: 2958 * if the entry was valid previously (coalesce[i].[tr]x_valid 2959 * and the loop variable is less than the number of rings 2960 * allocated, then write the previous values 2961 * 2962 * if the entry was not valid previously, but the number of 2963 * rings is less than are allocated (this means the number of 2964 * rings increased from previously), then write out the 2965 * values in the first element 2966 * 2967 * Also, always write the ITR, even if in ITR_IS_DYNAMIC 2968 * as there is no harm because the dynamic algorithm 2969 * will just overwrite. 2970 */ 2971 if (i < vsi->alloc_rxq && coalesce[i].rx_valid) { 2972 rc = &vsi->q_vectors[i]->rx; 2973 rc->itr_settings = coalesce[i].itr_rx; 2974 ice_write_itr(rc, rc->itr_setting); 2975 } else if (i < vsi->alloc_rxq) { 2976 rc = &vsi->q_vectors[i]->rx; 2977 rc->itr_settings = coalesce[0].itr_rx; 2978 ice_write_itr(rc, rc->itr_setting); 2979 } 2980 2981 if (i < vsi->alloc_txq && coalesce[i].tx_valid) { 2982 rc = &vsi->q_vectors[i]->tx; 2983 rc->itr_settings = coalesce[i].itr_tx; 2984 ice_write_itr(rc, rc->itr_setting); 2985 } else if (i < vsi->alloc_txq) { 2986 rc = &vsi->q_vectors[i]->tx; 2987 rc->itr_settings = coalesce[0].itr_tx; 2988 ice_write_itr(rc, rc->itr_setting); 2989 } 2990 2991 vsi->q_vectors[i]->intrl = coalesce[i].intrl; 2992 ice_set_q_vector_intrl(vsi->q_vectors[i]); 2993 } 2994 2995 /* the number of queue vectors increased so write whatever is in 2996 * the first element 2997 */ 2998 for (; i < vsi->num_q_vectors; i++) { 2999 /* transmit */ 3000 rc = &vsi->q_vectors[i]->tx; 3001 rc->itr_settings = coalesce[0].itr_tx; 3002 ice_write_itr(rc, rc->itr_setting); 3003 3004 /* receive */ 3005 rc = &vsi->q_vectors[i]->rx; 3006 rc->itr_settings = coalesce[0].itr_rx; 3007 ice_write_itr(rc, rc->itr_setting); 3008 3009 vsi->q_vectors[i]->intrl = coalesce[0].intrl; 3010 ice_set_q_vector_intrl(vsi->q_vectors[i]); 3011 } 3012 } 3013 3014 /** 3015 * ice_vsi_realloc_stat_arrays - Frees unused stat structures or alloc new ones 3016 * @vsi: VSI pointer 3017 */ 3018 static int 3019 ice_vsi_realloc_stat_arrays(struct ice_vsi *vsi) 3020 { 3021 u16 req_txq = vsi->req_txq ? vsi->req_txq : vsi->alloc_txq; 3022 u16 req_rxq = vsi->req_rxq ? vsi->req_rxq : vsi->alloc_rxq; 3023 struct ice_ring_stats **tx_ring_stats; 3024 struct ice_ring_stats **rx_ring_stats; 3025 struct ice_vsi_stats *vsi_stat; 3026 struct ice_pf *pf = vsi->back; 3027 u16 prev_txq = vsi->alloc_txq; 3028 u16 prev_rxq = vsi->alloc_rxq; 3029 int i; 3030 3031 vsi_stat = pf->vsi_stats[vsi->idx]; 3032 3033 if (req_txq < prev_txq) { 3034 for (i = req_txq; i < prev_txq; i++) { 3035 if (vsi_stat->tx_ring_stats[i]) { 3036 kfree_rcu(vsi_stat->tx_ring_stats[i], rcu); 3037 WRITE_ONCE(vsi_stat->tx_ring_stats[i], NULL); 3038 } 3039 } 3040 } 3041 3042 tx_ring_stats = vsi_stat->tx_ring_stats; 3043 vsi_stat->tx_ring_stats = 3044 krealloc_array(vsi_stat->tx_ring_stats, req_txq, 3045 sizeof(*vsi_stat->tx_ring_stats), 3046 GFP_KERNEL | __GFP_ZERO); 3047 if (!vsi_stat->tx_ring_stats) { 3048 vsi_stat->tx_ring_stats = tx_ring_stats; 3049 return -ENOMEM; 3050 } 3051 3052 if (req_rxq < prev_rxq) { 3053 for (i = req_rxq; i < prev_rxq; i++) { 3054 if (vsi_stat->rx_ring_stats[i]) { 3055 kfree_rcu(vsi_stat->rx_ring_stats[i], rcu); 3056 WRITE_ONCE(vsi_stat->rx_ring_stats[i], NULL); 3057 } 3058 } 3059 } 3060 3061 rx_ring_stats = vsi_stat->rx_ring_stats; 3062 vsi_stat->rx_ring_stats = 3063 krealloc_array(vsi_stat->rx_ring_stats, req_rxq, 3064 sizeof(*vsi_stat->rx_ring_stats), 3065 GFP_KERNEL | __GFP_ZERO); 3066 if (!vsi_stat->rx_ring_stats) { 3067 vsi_stat->rx_ring_stats = rx_ring_stats; 3068 return -ENOMEM; 3069 } 3070 3071 return 0; 3072 } 3073 3074 /** 3075 * ice_vsi_rebuild - Rebuild VSI after reset 3076 * @vsi: VSI to be rebuild 3077 * @vsi_flags: flags used for VSI rebuild flow 3078 * 3079 * Set vsi_flags to ICE_VSI_FLAG_INIT to initialize a new VSI, or 3080 * ICE_VSI_FLAG_NO_INIT to rebuild an existing VSI in hardware. 3081 * 3082 * Returns 0 on success and negative value on failure 3083 */ 3084 int ice_vsi_rebuild(struct ice_vsi *vsi, u32 vsi_flags) 3085 { 3086 struct ice_coalesce_stored *coalesce; 3087 int prev_num_q_vectors; 3088 struct ice_pf *pf; 3089 int ret; 3090 3091 if (!vsi) 3092 return -EINVAL; 3093 3094 vsi->flags = vsi_flags; 3095 pf = vsi->back; 3096 if (WARN_ON(vsi->type == ICE_VSI_VF && !vsi->vf)) 3097 return -EINVAL; 3098 3099 mutex_lock(&vsi->xdp_state_lock); 3100 3101 ret = ice_vsi_realloc_stat_arrays(vsi); 3102 if (ret) 3103 goto unlock; 3104 3105 ice_vsi_decfg(vsi); 3106 ret = ice_vsi_cfg_def(vsi); 3107 if (ret) 3108 goto unlock; 3109 3110 coalesce = kzalloc_objs(struct ice_coalesce_stored, vsi->num_q_vectors); 3111 if (!coalesce) { 3112 ret = -ENOMEM; 3113 goto decfg; 3114 } 3115 3116 prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi, coalesce); 3117 3118 ret = ice_vsi_cfg_tc_lan(pf, vsi); 3119 if (ret) { 3120 if (vsi_flags & ICE_VSI_FLAG_INIT) { 3121 ret = -EIO; 3122 goto free_coalesce; 3123 } 3124 3125 ret = ice_schedule_reset(pf, ICE_RESET_PFR); 3126 goto free_coalesce; 3127 } 3128 3129 ice_vsi_rebuild_set_coalesce(vsi, coalesce, prev_num_q_vectors); 3130 clear_bit(ICE_VSI_REBUILD_PENDING, vsi->state); 3131 3132 free_coalesce: 3133 kfree(coalesce); 3134 decfg: 3135 if (ret) 3136 ice_vsi_decfg(vsi); 3137 unlock: 3138 mutex_unlock(&vsi->xdp_state_lock); 3139 return ret; 3140 } 3141 3142 /** 3143 * ice_is_reset_in_progress - check for a reset in progress 3144 * @state: PF state field 3145 */ 3146 bool ice_is_reset_in_progress(unsigned long *state) 3147 { 3148 return test_bit(ICE_RESET_OICR_RECV, state) || 3149 test_bit(ICE_PFR_REQ, state) || 3150 test_bit(ICE_CORER_REQ, state) || 3151 test_bit(ICE_GLOBR_REQ, state); 3152 } 3153 3154 /** 3155 * ice_wait_for_reset - Wait for driver to finish reset and rebuild 3156 * @pf: pointer to the PF structure 3157 * @timeout: length of time to wait, in jiffies 3158 * 3159 * Wait (sleep) for a short time until the driver finishes cleaning up from 3160 * a device reset. The caller must be able to sleep. Use this to delay 3161 * operations that could fail while the driver is cleaning up after a device 3162 * reset. 3163 * 3164 * Returns 0 on success, -EBUSY if the reset is not finished within the 3165 * timeout, and -ERESTARTSYS if the thread was interrupted. 3166 */ 3167 int ice_wait_for_reset(struct ice_pf *pf, unsigned long timeout) 3168 { 3169 long ret; 3170 3171 ret = wait_event_interruptible_timeout(pf->reset_wait_queue, 3172 !ice_is_reset_in_progress(pf->state), 3173 timeout); 3174 if (ret < 0) 3175 return ret; 3176 else if (!ret) 3177 return -EBUSY; 3178 else 3179 return 0; 3180 } 3181 3182 /** 3183 * ice_vsi_update_q_map - update our copy of the VSI info with new queue map 3184 * @vsi: VSI being configured 3185 * @ctx: the context buffer returned from AQ VSI update command 3186 */ 3187 static void ice_vsi_update_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctx) 3188 { 3189 vsi->info.mapping_flags = ctx->info.mapping_flags; 3190 memcpy(&vsi->info.q_mapping, &ctx->info.q_mapping, 3191 sizeof(vsi->info.q_mapping)); 3192 memcpy(&vsi->info.tc_mapping, ctx->info.tc_mapping, 3193 sizeof(vsi->info.tc_mapping)); 3194 } 3195 3196 /** 3197 * ice_vsi_cfg_netdev_tc - Setup the netdev TC configuration 3198 * @vsi: the VSI being configured 3199 * @ena_tc: TC map to be enabled 3200 */ 3201 void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc) 3202 { 3203 struct net_device *netdev = vsi->netdev; 3204 struct ice_pf *pf = vsi->back; 3205 int numtc = vsi->tc_cfg.numtc; 3206 struct ice_dcbx_cfg *dcbcfg; 3207 u8 netdev_tc; 3208 int i; 3209 3210 if (!netdev) 3211 return; 3212 3213 /* CHNL VSI doesn't have its own netdev, hence, no netdev_tc */ 3214 if (vsi->type == ICE_VSI_CHNL) 3215 return; 3216 3217 if (!ena_tc) { 3218 netdev_reset_tc(netdev); 3219 return; 3220 } 3221 3222 if (vsi->type == ICE_VSI_PF && ice_is_adq_active(pf)) 3223 numtc = vsi->all_numtc; 3224 3225 if (netdev_set_num_tc(netdev, numtc)) 3226 return; 3227 3228 dcbcfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg; 3229 3230 ice_for_each_traffic_class(i) 3231 if (vsi->tc_cfg.ena_tc & BIT(i)) 3232 netdev_set_tc_queue(netdev, 3233 vsi->tc_cfg.tc_info[i].netdev_tc, 3234 vsi->tc_cfg.tc_info[i].qcount_tx, 3235 vsi->tc_cfg.tc_info[i].qoffset); 3236 /* setup TC queue map for CHNL TCs */ 3237 ice_for_each_chnl_tc(i) { 3238 if (!(vsi->all_enatc & BIT(i))) 3239 break; 3240 if (!vsi->mqprio_qopt.qopt.count[i]) 3241 break; 3242 netdev_set_tc_queue(netdev, i, 3243 vsi->mqprio_qopt.qopt.count[i], 3244 vsi->mqprio_qopt.qopt.offset[i]); 3245 } 3246 3247 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3248 return; 3249 3250 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 3251 u8 ets_tc = dcbcfg->etscfg.prio_table[i]; 3252 3253 /* Get the mapped netdev TC# for the UP */ 3254 netdev_tc = vsi->tc_cfg.tc_info[ets_tc].netdev_tc; 3255 netdev_set_prio_tc_map(netdev, i, netdev_tc); 3256 } 3257 } 3258 3259 /** 3260 * ice_vsi_setup_q_map_mqprio - Prepares mqprio based tc_config 3261 * @vsi: the VSI being configured, 3262 * @ctxt: VSI context structure 3263 * @ena_tc: number of traffic classes to enable 3264 * 3265 * Prepares VSI tc_config to have queue configurations based on MQPRIO options. 3266 */ 3267 static int 3268 ice_vsi_setup_q_map_mqprio(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt, 3269 u8 ena_tc) 3270 { 3271 u16 pow, offset = 0, qcount_tx = 0, qcount_rx = 0, qmap; 3272 u16 tc0_offset = vsi->mqprio_qopt.qopt.offset[0]; 3273 int tc0_qcount = vsi->mqprio_qopt.qopt.count[0]; 3274 u16 new_txq, new_rxq; 3275 u8 netdev_tc = 0; 3276 int i; 3277 3278 vsi->tc_cfg.ena_tc = ena_tc ? ena_tc : 1; 3279 3280 pow = order_base_2(tc0_qcount); 3281 qmap = FIELD_PREP(ICE_AQ_VSI_TC_Q_OFFSET_M, tc0_offset); 3282 qmap |= FIELD_PREP(ICE_AQ_VSI_TC_Q_NUM_M, pow); 3283 3284 ice_for_each_traffic_class(i) { 3285 if (!(vsi->tc_cfg.ena_tc & BIT(i))) { 3286 /* TC is not enabled */ 3287 vsi->tc_cfg.tc_info[i].qoffset = 0; 3288 vsi->tc_cfg.tc_info[i].qcount_rx = 1; 3289 vsi->tc_cfg.tc_info[i].qcount_tx = 1; 3290 vsi->tc_cfg.tc_info[i].netdev_tc = 0; 3291 ctxt->info.tc_mapping[i] = 0; 3292 continue; 3293 } 3294 3295 offset = vsi->mqprio_qopt.qopt.offset[i]; 3296 qcount_rx = vsi->mqprio_qopt.qopt.count[i]; 3297 qcount_tx = vsi->mqprio_qopt.qopt.count[i]; 3298 vsi->tc_cfg.tc_info[i].qoffset = offset; 3299 vsi->tc_cfg.tc_info[i].qcount_rx = qcount_rx; 3300 vsi->tc_cfg.tc_info[i].qcount_tx = qcount_tx; 3301 vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++; 3302 } 3303 3304 if (vsi->all_numtc && vsi->all_numtc != vsi->tc_cfg.numtc) { 3305 ice_for_each_chnl_tc(i) { 3306 if (!(vsi->all_enatc & BIT(i))) 3307 continue; 3308 offset = vsi->mqprio_qopt.qopt.offset[i]; 3309 qcount_rx = vsi->mqprio_qopt.qopt.count[i]; 3310 qcount_tx = vsi->mqprio_qopt.qopt.count[i]; 3311 } 3312 } 3313 3314 new_txq = offset + qcount_tx; 3315 if (new_txq > vsi->alloc_txq) { 3316 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Tx queues (%u), than were allocated (%u)!\n", 3317 new_txq, vsi->alloc_txq); 3318 return -EINVAL; 3319 } 3320 3321 new_rxq = offset + qcount_rx; 3322 if (new_rxq > vsi->alloc_rxq) { 3323 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Rx queues (%u), than were allocated (%u)!\n", 3324 new_rxq, vsi->alloc_rxq); 3325 return -EINVAL; 3326 } 3327 3328 /* Set actual Tx/Rx queue pairs */ 3329 vsi->num_txq = new_txq; 3330 vsi->num_rxq = new_rxq; 3331 3332 /* Setup queue TC[0].qmap for given VSI context */ 3333 ctxt->info.tc_mapping[0] = cpu_to_le16(qmap); 3334 ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]); 3335 ctxt->info.q_mapping[1] = cpu_to_le16(tc0_qcount); 3336 3337 /* Find queue count available for channel VSIs and starting offset 3338 * for channel VSIs 3339 */ 3340 if (tc0_qcount && tc0_qcount < vsi->num_rxq) { 3341 vsi->cnt_q_avail = vsi->num_rxq - tc0_qcount; 3342 vsi->next_base_q = tc0_qcount; 3343 } 3344 dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_txq = %d\n", vsi->num_txq); 3345 dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_rxq = %d\n", vsi->num_rxq); 3346 dev_dbg(ice_pf_to_dev(vsi->back), "all_numtc %u, all_enatc: 0x%04x, tc_cfg.numtc %u\n", 3347 vsi->all_numtc, vsi->all_enatc, vsi->tc_cfg.numtc); 3348 3349 return 0; 3350 } 3351 3352 /** 3353 * ice_vsi_cfg_tc - Configure VSI Tx Sched for given TC map 3354 * @vsi: VSI to be configured 3355 * @ena_tc: TC bitmap 3356 * 3357 * VSI queues expected to be quiesced before calling this function 3358 */ 3359 int ice_vsi_cfg_tc(struct ice_vsi *vsi, u8 ena_tc) 3360 { 3361 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; 3362 struct ice_pf *pf = vsi->back; 3363 struct ice_tc_cfg old_tc_cfg; 3364 struct ice_vsi_ctx *ctx; 3365 struct device *dev; 3366 int i, ret = 0; 3367 u8 num_tc = 0; 3368 3369 dev = ice_pf_to_dev(pf); 3370 if (vsi->tc_cfg.ena_tc == ena_tc && 3371 vsi->mqprio_qopt.mode != TC_MQPRIO_MODE_CHANNEL) 3372 return 0; 3373 3374 ice_for_each_traffic_class(i) { 3375 /* build bitmap of enabled TCs */ 3376 if (ena_tc & BIT(i)) 3377 num_tc++; 3378 /* populate max_txqs per TC */ 3379 max_txqs[i] = vsi->alloc_txq; 3380 /* Update max_txqs if it is CHNL VSI, because alloc_t[r]xq are 3381 * zero for CHNL VSI, hence use num_txq instead as max_txqs 3382 */ 3383 if (vsi->type == ICE_VSI_CHNL && 3384 test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3385 max_txqs[i] = vsi->num_txq; 3386 } 3387 3388 memcpy(&old_tc_cfg, &vsi->tc_cfg, sizeof(old_tc_cfg)); 3389 vsi->tc_cfg.ena_tc = ena_tc; 3390 vsi->tc_cfg.numtc = num_tc; 3391 3392 ctx = kzalloc_obj(*ctx); 3393 if (!ctx) 3394 return -ENOMEM; 3395 3396 ctx->vf_num = 0; 3397 ctx->info = vsi->info; 3398 3399 if (vsi->type == ICE_VSI_PF && 3400 test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3401 ret = ice_vsi_setup_q_map_mqprio(vsi, ctx, ena_tc); 3402 else 3403 ret = ice_vsi_setup_q_map(vsi, ctx); 3404 3405 if (ret) { 3406 memcpy(&vsi->tc_cfg, &old_tc_cfg, sizeof(vsi->tc_cfg)); 3407 goto out; 3408 } 3409 3410 /* must to indicate which section of VSI context are being modified */ 3411 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID); 3412 ret = ice_update_vsi(&pf->hw, vsi->idx, ctx, NULL); 3413 if (ret) { 3414 dev_info(dev, "Failed VSI Update\n"); 3415 goto out; 3416 } 3417 3418 if (vsi->type == ICE_VSI_PF && 3419 test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3420 ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 1, max_txqs); 3421 else 3422 ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 3423 vsi->tc_cfg.ena_tc, max_txqs); 3424 3425 if (ret) { 3426 dev_err(dev, "VSI %d failed TC config, error %d\n", 3427 vsi->vsi_num, ret); 3428 goto out; 3429 } 3430 ice_vsi_update_q_map(vsi, ctx); 3431 vsi->info.valid_sections = 0; 3432 3433 ice_vsi_cfg_netdev_tc(vsi, ena_tc); 3434 out: 3435 kfree(ctx); 3436 return ret; 3437 } 3438 3439 /** 3440 * ice_update_tx_ring_stats - Update Tx ring specific counters 3441 * @tx_ring: ring to update 3442 * @pkts: number of processed packets 3443 * @bytes: number of processed bytes 3444 */ 3445 void ice_update_tx_ring_stats(struct ice_tx_ring *tx_ring, u64 pkts, u64 bytes) 3446 { 3447 u64_stats_update_begin(&tx_ring->ring_stats->syncp); 3448 u64_stats_add(&tx_ring->ring_stats->pkts, pkts); 3449 u64_stats_add(&tx_ring->ring_stats->bytes, bytes); 3450 u64_stats_update_end(&tx_ring->ring_stats->syncp); 3451 } 3452 3453 /** 3454 * ice_update_rx_ring_stats - Update Rx ring specific counters 3455 * @rx_ring: ring to update 3456 * @pkts: number of processed packets 3457 * @bytes: number of processed bytes 3458 */ 3459 void ice_update_rx_ring_stats(struct ice_rx_ring *rx_ring, u64 pkts, u64 bytes) 3460 { 3461 u64_stats_update_begin(&rx_ring->ring_stats->syncp); 3462 u64_stats_add(&rx_ring->ring_stats->pkts, pkts); 3463 u64_stats_add(&rx_ring->ring_stats->bytes, bytes); 3464 u64_stats_update_end(&rx_ring->ring_stats->syncp); 3465 } 3466 3467 /** 3468 * ice_fetch_tx_ring_stats - Fetch Tx ring packet and byte counters 3469 * @ring: ring to update 3470 * @pkts: number of processed packets 3471 * @bytes: number of processed bytes 3472 */ 3473 void ice_fetch_tx_ring_stats(const struct ice_tx_ring *ring, 3474 u64 *pkts, u64 *bytes) 3475 { 3476 unsigned int start; 3477 3478 do { 3479 start = u64_stats_fetch_begin(&ring->ring_stats->syncp); 3480 *pkts = u64_stats_read(&ring->ring_stats->pkts); 3481 *bytes = u64_stats_read(&ring->ring_stats->bytes); 3482 } while (u64_stats_fetch_retry(&ring->ring_stats->syncp, start)); 3483 } 3484 3485 /** 3486 * ice_fetch_rx_ring_stats - Fetch Rx ring packet and byte counters 3487 * @ring: ring to read 3488 * @pkts: number of processed packets 3489 * @bytes: number of processed bytes 3490 */ 3491 void ice_fetch_rx_ring_stats(const struct ice_rx_ring *ring, 3492 u64 *pkts, u64 *bytes) 3493 { 3494 unsigned int start; 3495 3496 do { 3497 start = u64_stats_fetch_begin(&ring->ring_stats->syncp); 3498 *pkts = u64_stats_read(&ring->ring_stats->pkts); 3499 *bytes = u64_stats_read(&ring->ring_stats->bytes); 3500 } while (u64_stats_fetch_retry(&ring->ring_stats->syncp, start)); 3501 } 3502 3503 /** 3504 * ice_is_dflt_vsi_in_use - check if the default forwarding VSI is being used 3505 * @pi: port info of the switch with default VSI 3506 * 3507 * Return true if the there is a single VSI in default forwarding VSI list 3508 */ 3509 bool ice_is_dflt_vsi_in_use(struct ice_port_info *pi) 3510 { 3511 bool exists = false; 3512 3513 ice_check_if_dflt_vsi(pi, 0, &exists); 3514 return exists; 3515 } 3516 3517 /** 3518 * ice_is_vsi_dflt_vsi - check if the VSI passed in is the default VSI 3519 * @vsi: VSI to compare against default forwarding VSI 3520 * 3521 * If this VSI passed in is the default forwarding VSI then return true, else 3522 * return false 3523 */ 3524 bool ice_is_vsi_dflt_vsi(struct ice_vsi *vsi) 3525 { 3526 return ice_check_if_dflt_vsi(vsi->port_info, vsi->idx, NULL); 3527 } 3528 3529 /** 3530 * ice_set_dflt_vsi - set the default forwarding VSI 3531 * @vsi: VSI getting set as the default forwarding VSI on the switch 3532 * 3533 * If the VSI passed in is already the default VSI and it's enabled just return 3534 * success. 3535 * 3536 * Otherwise try to set the VSI passed in as the switch's default VSI and 3537 * return the result. 3538 */ 3539 int ice_set_dflt_vsi(struct ice_vsi *vsi) 3540 { 3541 struct device *dev; 3542 int status; 3543 3544 if (!vsi) 3545 return -EINVAL; 3546 3547 dev = ice_pf_to_dev(vsi->back); 3548 3549 if (ice_lag_is_switchdev_running(vsi->back)) { 3550 dev_dbg(dev, "VSI %d passed is a part of LAG containing interfaces in switchdev mode, nothing to do\n", 3551 vsi->vsi_num); 3552 return 0; 3553 } 3554 3555 /* the VSI passed in is already the default VSI */ 3556 if (ice_is_vsi_dflt_vsi(vsi)) { 3557 dev_dbg(dev, "VSI %d passed in is already the default forwarding VSI, nothing to do\n", 3558 vsi->vsi_num); 3559 return 0; 3560 } 3561 3562 status = ice_cfg_dflt_vsi(vsi->port_info, vsi->idx, true, ICE_FLTR_RX); 3563 if (status) { 3564 dev_err(dev, "Failed to set VSI %d as the default forwarding VSI, error %d\n", 3565 vsi->vsi_num, status); 3566 return status; 3567 } 3568 3569 return 0; 3570 } 3571 3572 /** 3573 * ice_clear_dflt_vsi - clear the default forwarding VSI 3574 * @vsi: VSI to remove from filter list 3575 * 3576 * If the switch has no default VSI or it's not enabled then return error. 3577 * 3578 * Otherwise try to clear the default VSI and return the result. 3579 */ 3580 int ice_clear_dflt_vsi(struct ice_vsi *vsi) 3581 { 3582 struct device *dev; 3583 int status; 3584 3585 if (!vsi) 3586 return -EINVAL; 3587 3588 dev = ice_pf_to_dev(vsi->back); 3589 3590 /* there is no default VSI configured */ 3591 if (!ice_is_dflt_vsi_in_use(vsi->port_info)) 3592 return -ENODEV; 3593 3594 status = ice_cfg_dflt_vsi(vsi->port_info, vsi->idx, false, 3595 ICE_FLTR_RX); 3596 if (status) { 3597 dev_err(dev, "Failed to clear the default forwarding VSI %d, error %d\n", 3598 vsi->vsi_num, status); 3599 return -EIO; 3600 } 3601 3602 return 0; 3603 } 3604 3605 /** 3606 * ice_get_link_speed_mbps - get link speed in Mbps 3607 * @vsi: the VSI whose link speed is being queried 3608 * 3609 * Return current VSI link speed and 0 if the speed is unknown. 3610 */ 3611 int ice_get_link_speed_mbps(struct ice_vsi *vsi) 3612 { 3613 unsigned int link_speed; 3614 3615 link_speed = vsi->port_info->phy.link_info.link_speed; 3616 3617 return (int)ice_get_link_speed(fls(link_speed) - 1); 3618 } 3619 3620 /** 3621 * ice_get_link_speed_kbps - get link speed in Kbps 3622 * @vsi: the VSI whose link speed is being queried 3623 * 3624 * Return current VSI link speed and 0 if the speed is unknown. 3625 */ 3626 int ice_get_link_speed_kbps(struct ice_vsi *vsi) 3627 { 3628 int speed_mbps; 3629 3630 speed_mbps = ice_get_link_speed_mbps(vsi); 3631 3632 return speed_mbps * 1000; 3633 } 3634 3635 /** 3636 * ice_set_min_bw_limit - setup minimum BW limit for Tx based on min_tx_rate 3637 * @vsi: VSI to be configured 3638 * @min_tx_rate: min Tx rate in Kbps to be configured as BW limit 3639 * 3640 * If the min_tx_rate is specified as 0 that means to clear the minimum BW limit 3641 * profile, otherwise a non-zero value will force a minimum BW limit for the VSI 3642 * on TC 0. 3643 */ 3644 int ice_set_min_bw_limit(struct ice_vsi *vsi, u64 min_tx_rate) 3645 { 3646 struct ice_pf *pf = vsi->back; 3647 struct device *dev; 3648 int status; 3649 int speed; 3650 3651 dev = ice_pf_to_dev(pf); 3652 if (!vsi->port_info) { 3653 dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n", 3654 vsi->idx, vsi->type); 3655 return -EINVAL; 3656 } 3657 3658 speed = ice_get_link_speed_kbps(vsi); 3659 if (min_tx_rate > (u64)speed) { 3660 dev_err(dev, "invalid min Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n", 3661 min_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx, 3662 speed); 3663 return -EINVAL; 3664 } 3665 3666 /* Configure min BW for VSI limit */ 3667 if (min_tx_rate) { 3668 status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0, 3669 ICE_MIN_BW, min_tx_rate); 3670 if (status) { 3671 dev_err(dev, "failed to set min Tx rate(%llu Kbps) for %s %d\n", 3672 min_tx_rate, ice_vsi_type_str(vsi->type), 3673 vsi->idx); 3674 return status; 3675 } 3676 3677 dev_dbg(dev, "set min Tx rate(%llu Kbps) for %s\n", 3678 min_tx_rate, ice_vsi_type_str(vsi->type)); 3679 } else { 3680 status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info, 3681 vsi->idx, 0, 3682 ICE_MIN_BW); 3683 if (status) { 3684 dev_err(dev, "failed to clear min Tx rate configuration for %s %d\n", 3685 ice_vsi_type_str(vsi->type), vsi->idx); 3686 return status; 3687 } 3688 3689 dev_dbg(dev, "cleared min Tx rate configuration for %s %d\n", 3690 ice_vsi_type_str(vsi->type), vsi->idx); 3691 } 3692 3693 return 0; 3694 } 3695 3696 /** 3697 * ice_set_max_bw_limit - setup maximum BW limit for Tx based on max_tx_rate 3698 * @vsi: VSI to be configured 3699 * @max_tx_rate: max Tx rate in Kbps to be configured as BW limit 3700 * 3701 * If the max_tx_rate is specified as 0 that means to clear the maximum BW limit 3702 * profile, otherwise a non-zero value will force a maximum BW limit for the VSI 3703 * on TC 0. 3704 */ 3705 int ice_set_max_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate) 3706 { 3707 struct ice_pf *pf = vsi->back; 3708 struct device *dev; 3709 int status; 3710 int speed; 3711 3712 dev = ice_pf_to_dev(pf); 3713 if (!vsi->port_info) { 3714 dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n", 3715 vsi->idx, vsi->type); 3716 return -EINVAL; 3717 } 3718 3719 speed = ice_get_link_speed_kbps(vsi); 3720 if (max_tx_rate > (u64)speed) { 3721 dev_err(dev, "invalid max Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n", 3722 max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx, 3723 speed); 3724 return -EINVAL; 3725 } 3726 3727 /* Configure max BW for VSI limit */ 3728 if (max_tx_rate) { 3729 status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0, 3730 ICE_MAX_BW, max_tx_rate); 3731 if (status) { 3732 dev_err(dev, "failed setting max Tx rate(%llu Kbps) for %s %d\n", 3733 max_tx_rate, ice_vsi_type_str(vsi->type), 3734 vsi->idx); 3735 return status; 3736 } 3737 3738 dev_dbg(dev, "set max Tx rate(%llu Kbps) for %s %d\n", 3739 max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx); 3740 } else { 3741 status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info, 3742 vsi->idx, 0, 3743 ICE_MAX_BW); 3744 if (status) { 3745 dev_err(dev, "failed clearing max Tx rate configuration for %s %d\n", 3746 ice_vsi_type_str(vsi->type), vsi->idx); 3747 return status; 3748 } 3749 3750 dev_dbg(dev, "cleared max Tx rate configuration for %s %d\n", 3751 ice_vsi_type_str(vsi->type), vsi->idx); 3752 } 3753 3754 return 0; 3755 } 3756 3757 /** 3758 * ice_set_link - turn on/off physical link 3759 * @vsi: VSI to modify physical link on 3760 * @ena: turn on/off physical link 3761 */ 3762 int ice_set_link(struct ice_vsi *vsi, bool ena) 3763 { 3764 struct device *dev = ice_pf_to_dev(vsi->back); 3765 struct ice_port_info *pi = vsi->port_info; 3766 struct ice_hw *hw = pi->hw; 3767 int status; 3768 3769 if (vsi->type != ICE_VSI_PF) 3770 return -EINVAL; 3771 3772 status = ice_aq_set_link_restart_an(pi, ena, NULL); 3773 3774 /* if link is owned by manageability, FW will return LIBIE_AQ_RC_EMODE. 3775 * this is not a fatal error, so print a warning message and return 3776 * a success code. Return an error if FW returns an error code other 3777 * than LIBIE_AQ_RC_EMODE 3778 */ 3779 if (status == -EIO) { 3780 if (hw->adminq.sq_last_status == LIBIE_AQ_RC_EMODE) 3781 dev_dbg(dev, "can't set link to %s, err %d aq_err %s. not fatal, continuing\n", 3782 (ena ? "ON" : "OFF"), status, 3783 libie_aq_str(hw->adminq.sq_last_status)); 3784 } else if (status) { 3785 dev_err(dev, "can't set link to %s, err %d aq_err %s\n", 3786 (ena ? "ON" : "OFF"), status, 3787 libie_aq_str(hw->adminq.sq_last_status)); 3788 return status; 3789 } 3790 3791 return 0; 3792 } 3793 3794 /** 3795 * ice_vsi_add_vlan_zero - add VLAN 0 filter(s) for this VSI 3796 * @vsi: VSI used to add VLAN filters 3797 * 3798 * In Single VLAN Mode (SVM), single VLAN filters via ICE_SW_LKUP_VLAN are based 3799 * on the inner VLAN ID, so the VLAN TPID (i.e. 0x8100 or 0x888a8) doesn't 3800 * matter. In Double VLAN Mode (DVM), outer/single VLAN filters via 3801 * ICE_SW_LKUP_VLAN are based on the outer/single VLAN ID + VLAN TPID. 3802 * 3803 * For both modes add a VLAN 0 + no VLAN TPID filter to handle untagged traffic 3804 * when VLAN pruning is enabled. Also, this handles VLAN 0 priority tagged 3805 * traffic in SVM, since the VLAN TPID isn't part of filtering. 3806 * 3807 * If DVM is enabled then an explicit VLAN 0 + VLAN TPID filter needs to be 3808 * added to allow VLAN 0 priority tagged traffic in DVM, since the VLAN TPID is 3809 * part of filtering. 3810 */ 3811 int ice_vsi_add_vlan_zero(struct ice_vsi *vsi) 3812 { 3813 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); 3814 struct ice_vlan vlan; 3815 int err; 3816 3817 vlan = ICE_VLAN(0, 0, 0); 3818 err = vlan_ops->add_vlan(vsi, &vlan); 3819 if (err && err != -EEXIST) 3820 return err; 3821 3822 /* in SVM both VLAN 0 filters are identical */ 3823 if (!ice_is_dvm_ena(&vsi->back->hw)) 3824 return 0; 3825 3826 vlan = ICE_VLAN(ETH_P_8021Q, 0, 0); 3827 err = vlan_ops->add_vlan(vsi, &vlan); 3828 if (err && err != -EEXIST) 3829 return err; 3830 3831 return 0; 3832 } 3833 3834 /** 3835 * ice_vsi_del_vlan_zero - delete VLAN 0 filter(s) for this VSI 3836 * @vsi: VSI used to add VLAN filters 3837 * 3838 * Delete the VLAN 0 filters in the same manner that they were added in 3839 * ice_vsi_add_vlan_zero. 3840 */ 3841 int ice_vsi_del_vlan_zero(struct ice_vsi *vsi) 3842 { 3843 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); 3844 struct ice_pf *pf = vsi->back; 3845 struct ice_vlan vlan; 3846 int err; 3847 3848 if (pf->lag && pf->lag->primary) { 3849 dev_dbg(ice_pf_to_dev(pf), "Interface is primary in aggregate - not deleting prune list\n"); 3850 } else { 3851 vlan = ICE_VLAN(0, 0, 0); 3852 err = vlan_ops->del_vlan(vsi, &vlan); 3853 if (err && err != -EEXIST) 3854 return err; 3855 } 3856 3857 /* in SVM both VLAN 0 filters are identical */ 3858 if (!ice_is_dvm_ena(&vsi->back->hw)) 3859 return 0; 3860 3861 if (pf->lag && pf->lag->primary) { 3862 dev_dbg(ice_pf_to_dev(pf), "Interface is primary in aggregate - not deleting QinQ prune list\n"); 3863 } else { 3864 vlan = ICE_VLAN(ETH_P_8021Q, 0, 0); 3865 err = vlan_ops->del_vlan(vsi, &vlan); 3866 if (err && err != -EEXIST) 3867 return err; 3868 } 3869 3870 /* when deleting the last VLAN filter, make sure to disable the VLAN 3871 * promisc mode so the filter isn't left by accident 3872 */ 3873 return ice_clear_vsi_promisc(&vsi->back->hw, vsi->idx, 3874 ICE_MCAST_VLAN_PROMISC_BITS, 0); 3875 } 3876 3877 /** 3878 * ice_vsi_num_zero_vlans - get number of VLAN 0 filters based on VLAN mode 3879 * @vsi: VSI used to get the VLAN mode 3880 * 3881 * If DVM is enabled then 2 VLAN 0 filters are added, else if SVM is enabled 3882 * then 1 VLAN 0 filter is added. See ice_vsi_add_vlan_zero for more details. 3883 */ 3884 static u16 ice_vsi_num_zero_vlans(struct ice_vsi *vsi) 3885 { 3886 #define ICE_DVM_NUM_ZERO_VLAN_FLTRS 2 3887 #define ICE_SVM_NUM_ZERO_VLAN_FLTRS 1 3888 /* no VLAN 0 filter is created when a port VLAN is active */ 3889 if (vsi->type == ICE_VSI_VF) { 3890 if (WARN_ON(!vsi->vf)) 3891 return 0; 3892 3893 if (ice_vf_is_port_vlan_ena(vsi->vf)) 3894 return 0; 3895 } 3896 3897 if (ice_is_dvm_ena(&vsi->back->hw)) 3898 return ICE_DVM_NUM_ZERO_VLAN_FLTRS; 3899 else 3900 return ICE_SVM_NUM_ZERO_VLAN_FLTRS; 3901 } 3902 3903 /** 3904 * ice_vsi_has_non_zero_vlans - check if VSI has any non-zero VLANs 3905 * @vsi: VSI used to determine if any non-zero VLANs have been added 3906 */ 3907 bool ice_vsi_has_non_zero_vlans(struct ice_vsi *vsi) 3908 { 3909 return (vsi->num_vlan > ice_vsi_num_zero_vlans(vsi)); 3910 } 3911 3912 /** 3913 * ice_vsi_num_non_zero_vlans - get the number of non-zero VLANs for this VSI 3914 * @vsi: VSI used to get the number of non-zero VLANs added 3915 */ 3916 u16 ice_vsi_num_non_zero_vlans(struct ice_vsi *vsi) 3917 { 3918 return (vsi->num_vlan - ice_vsi_num_zero_vlans(vsi)); 3919 } 3920 3921 /** 3922 * ice_is_feature_supported 3923 * @pf: pointer to the struct ice_pf instance 3924 * @f: feature enum to be checked 3925 * 3926 * returns true if feature is supported, false otherwise 3927 */ 3928 bool ice_is_feature_supported(struct ice_pf *pf, enum ice_feature f) 3929 { 3930 if (f < 0 || f >= ICE_F_MAX) 3931 return false; 3932 3933 return test_bit(f, pf->features); 3934 } 3935 3936 /** 3937 * ice_set_feature_support 3938 * @pf: pointer to the struct ice_pf instance 3939 * @f: feature enum to set 3940 */ 3941 void ice_set_feature_support(struct ice_pf *pf, enum ice_feature f) 3942 { 3943 if (f < 0 || f >= ICE_F_MAX) 3944 return; 3945 3946 set_bit(f, pf->features); 3947 } 3948 3949 /** 3950 * ice_clear_feature_support 3951 * @pf: pointer to the struct ice_pf instance 3952 * @f: feature enum to clear 3953 */ 3954 void ice_clear_feature_support(struct ice_pf *pf, enum ice_feature f) 3955 { 3956 if (f < 0 || f >= ICE_F_MAX) 3957 return; 3958 3959 clear_bit(f, pf->features); 3960 } 3961 3962 /** 3963 * ice_init_feature_support 3964 * @pf: pointer to the struct ice_pf instance 3965 * 3966 * called during init to setup supported feature 3967 */ 3968 void ice_init_feature_support(struct ice_pf *pf) 3969 { 3970 switch (pf->hw.device_id) { 3971 case ICE_DEV_ID_E810C_BACKPLANE: 3972 case ICE_DEV_ID_E810C_QSFP: 3973 case ICE_DEV_ID_E810C_SFP: 3974 case ICE_DEV_ID_E810_XXV_BACKPLANE: 3975 case ICE_DEV_ID_E810_XXV_QSFP: 3976 case ICE_DEV_ID_E810_XXV_SFP: 3977 ice_set_feature_support(pf, ICE_F_DSCP); 3978 if (ice_is_phy_rclk_in_netlist(&pf->hw)) 3979 ice_set_feature_support(pf, ICE_F_PHY_RCLK); 3980 /* If we don't own the timer - don't enable other caps */ 3981 if (!ice_pf_src_tmr_owned(pf)) 3982 break; 3983 if (ice_is_cgu_in_netlist(&pf->hw)) 3984 ice_set_feature_support(pf, ICE_F_CGU); 3985 if (ice_is_clock_mux_in_netlist(&pf->hw)) 3986 ice_set_feature_support(pf, ICE_F_SMA_CTRL); 3987 if (ice_gnss_is_module_present(&pf->hw)) 3988 ice_set_feature_support(pf, ICE_F_GNSS); 3989 break; 3990 default: 3991 break; 3992 } 3993 3994 if (pf->hw.mac_type == ICE_MAC_GENERIC_3K_E825) 3995 ice_set_feature_support(pf, ICE_F_PHY_RCLK); 3996 3997 if (pf->hw.mac_type == ICE_MAC_E830) { 3998 ice_set_feature_support(pf, ICE_F_MBX_LIMIT); 3999 ice_set_feature_support(pf, ICE_F_GCS); 4000 ice_set_feature_support(pf, ICE_F_TXTIME); 4001 } 4002 } 4003 4004 /** 4005 * ice_vsi_update_security - update security block in VSI 4006 * @vsi: pointer to VSI structure 4007 * @fill: function pointer to fill ctx 4008 */ 4009 int 4010 ice_vsi_update_security(struct ice_vsi *vsi, void (*fill)(struct ice_vsi_ctx *)) 4011 { 4012 struct ice_vsi_ctx ctx = { 0 }; 4013 4014 ctx.info = vsi->info; 4015 ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); 4016 fill(&ctx); 4017 4018 if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL)) 4019 return -ENODEV; 4020 4021 vsi->info = ctx.info; 4022 return 0; 4023 } 4024 4025 /** 4026 * ice_vsi_ctx_set_antispoof - set antispoof function in VSI ctx 4027 * @ctx: pointer to VSI ctx structure 4028 */ 4029 void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx) 4030 { 4031 ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF | 4032 (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << 4033 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); 4034 } 4035 4036 /** 4037 * ice_vsi_ctx_clear_antispoof - clear antispoof function in VSI ctx 4038 * @ctx: pointer to VSI ctx structure 4039 */ 4040 void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx) 4041 { 4042 ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF & 4043 ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << 4044 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); 4045 } 4046 4047 /** 4048 * ice_vsi_update_local_lb - update sw block in VSI with local loopback bit 4049 * @vsi: pointer to VSI structure 4050 * @set: set or unset the bit 4051 */ 4052 int 4053 ice_vsi_update_local_lb(struct ice_vsi *vsi, bool set) 4054 { 4055 struct ice_vsi_ctx ctx = { 4056 .info = vsi->info, 4057 }; 4058 4059 ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID); 4060 if (set) 4061 ctx.info.sw_flags |= ICE_AQ_VSI_SW_FLAG_LOCAL_LB; 4062 else 4063 ctx.info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_LOCAL_LB; 4064 4065 if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL)) 4066 return -ENODEV; 4067 4068 vsi->info = ctx.info; 4069 return 0; 4070 } 4071 4072 /** 4073 * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI 4074 * @vsi: VSI used to update l2tsel on 4075 * @l2tsel: l2tsel setting requested 4076 * 4077 * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel. 4078 * This will modify which descriptor field the first offloaded VLAN will be 4079 * stripped into. 4080 */ 4081 void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel) 4082 { 4083 struct ice_hw *hw = &vsi->back->hw; 4084 u32 l2tsel_bit; 4085 int i; 4086 4087 if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND) 4088 l2tsel_bit = 0; 4089 else 4090 l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET); 4091 4092 for (i = 0; i < vsi->alloc_rxq; i++) { 4093 u16 pfq = vsi->rxq_map[i]; 4094 u32 qrx_context_offset; 4095 u32 regval; 4096 4097 qrx_context_offset = 4098 QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq); 4099 4100 regval = rd32(hw, qrx_context_offset); 4101 regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET); 4102 regval |= l2tsel_bit; 4103 wr32(hw, qrx_context_offset, regval); 4104 } 4105 } 4106