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_devlink.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 */ 17const 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_CTRL: 25 return "ICE_VSI_CTRL"; 26 case ICE_VSI_CHNL: 27 return "ICE_VSI_CHNL"; 28 case ICE_VSI_LB: 29 return "ICE_VSI_LB"; 30 case ICE_VSI_SWITCHDEV_CTRL: 31 return "ICE_VSI_SWITCHDEV_CTRL"; 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 */ 47static 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 */ 73static 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 /* There is no need to allocate q_vectors for a loopback VSI. */ 111 if (vsi->type == ICE_VSI_LB) 112 return 0; 113 114 /* allocate memory for q_vector pointers */ 115 vsi->q_vectors = devm_kcalloc(dev, vsi->num_q_vectors, 116 sizeof(*vsi->q_vectors), GFP_KERNEL); 117 if (!vsi->q_vectors) 118 goto err_vectors; 119 120 vsi->af_xdp_zc_qps = bitmap_zalloc(max_t(int, vsi->alloc_txq, vsi->alloc_rxq), GFP_KERNEL); 121 if (!vsi->af_xdp_zc_qps) 122 goto err_zc_qps; 123 124 return 0; 125 126err_zc_qps: 127 devm_kfree(dev, vsi->q_vectors); 128err_vectors: 129 devm_kfree(dev, vsi->rxq_map); 130err_rxq_map: 131 devm_kfree(dev, vsi->txq_map); 132err_txq_map: 133 devm_kfree(dev, vsi->rx_rings); 134err_rings: 135 devm_kfree(dev, vsi->tx_rings); 136 return -ENOMEM; 137} 138 139/** 140 * ice_vsi_set_num_desc - Set number of descriptors for queues on this VSI 141 * @vsi: the VSI being configured 142 */ 143static void ice_vsi_set_num_desc(struct ice_vsi *vsi) 144{ 145 switch (vsi->type) { 146 case ICE_VSI_PF: 147 case ICE_VSI_SWITCHDEV_CTRL: 148 case ICE_VSI_CTRL: 149 case ICE_VSI_LB: 150 /* a user could change the values of num_[tr]x_desc using 151 * ethtool -G so we should keep those values instead of 152 * overwriting them with the defaults. 153 */ 154 if (!vsi->num_rx_desc) 155 vsi->num_rx_desc = ICE_DFLT_NUM_RX_DESC; 156 if (!vsi->num_tx_desc) 157 vsi->num_tx_desc = ICE_DFLT_NUM_TX_DESC; 158 break; 159 default: 160 dev_dbg(ice_pf_to_dev(vsi->back), "Not setting number of Tx/Rx descriptors for VSI type %d\n", 161 vsi->type); 162 break; 163 } 164} 165 166/** 167 * ice_vsi_set_num_qs - Set number of queues, descriptors and vectors for a VSI 168 * @vsi: the VSI being configured 169 * 170 * Return 0 on success and a negative value on error 171 */ 172static void ice_vsi_set_num_qs(struct ice_vsi *vsi) 173{ 174 enum ice_vsi_type vsi_type = vsi->type; 175 struct ice_pf *pf = vsi->back; 176 struct ice_vf *vf = vsi->vf; 177 178 if (WARN_ON(vsi_type == ICE_VSI_VF && !vf)) 179 return; 180 181 switch (vsi_type) { 182 case ICE_VSI_PF: 183 if (vsi->req_txq) { 184 vsi->alloc_txq = vsi->req_txq; 185 vsi->num_txq = vsi->req_txq; 186 } else { 187 vsi->alloc_txq = min3(pf->num_lan_msix, 188 ice_get_avail_txq_count(pf), 189 (u16)num_online_cpus()); 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 = min3(pf->num_lan_msix, 203 ice_get_avail_rxq_count(pf), 204 (u16)num_online_cpus()); 205 } 206 } 207 208 pf->num_lan_rx = vsi->alloc_rxq; 209 210 vsi->num_q_vectors = min_t(int, pf->num_lan_msix, 211 max_t(int, vsi->alloc_rxq, 212 vsi->alloc_txq)); 213 break; 214 case ICE_VSI_SWITCHDEV_CTRL: 215 /* The number of queues for ctrl VSI is equal to number of VFs. 216 * Each ring is associated to the corresponding VF_PR netdev. 217 */ 218 vsi->alloc_txq = ice_get_num_vfs(pf); 219 vsi->alloc_rxq = vsi->alloc_txq; 220 vsi->num_q_vectors = 1; 221 break; 222 case ICE_VSI_VF: 223 if (vf->num_req_qs) 224 vf->num_vf_qs = vf->num_req_qs; 225 vsi->alloc_txq = vf->num_vf_qs; 226 vsi->alloc_rxq = vf->num_vf_qs; 227 /* pf->vfs.num_msix_per includes (VF miscellaneous vector + 228 * data queue interrupts). Since vsi->num_q_vectors is number 229 * of queues vectors, subtract 1 (ICE_NONQ_VECS_VF) from the 230 * original vector count 231 */ 232 vsi->num_q_vectors = pf->vfs.num_msix_per - ICE_NONQ_VECS_VF; 233 break; 234 case ICE_VSI_CTRL: 235 vsi->alloc_txq = 1; 236 vsi->alloc_rxq = 1; 237 vsi->num_q_vectors = 1; 238 break; 239 case ICE_VSI_CHNL: 240 vsi->alloc_txq = 0; 241 vsi->alloc_rxq = 0; 242 break; 243 case ICE_VSI_LB: 244 vsi->alloc_txq = 1; 245 vsi->alloc_rxq = 1; 246 break; 247 default: 248 dev_warn(ice_pf_to_dev(pf), "Unknown VSI type %d\n", vsi_type); 249 break; 250 } 251 252 ice_vsi_set_num_desc(vsi); 253} 254 255/** 256 * ice_get_free_slot - get the next non-NULL location index in array 257 * @array: array to search 258 * @size: size of the array 259 * @curr: last known occupied index to be used as a search hint 260 * 261 * void * is being used to keep the functionality generic. This lets us use this 262 * function on any array of pointers. 263 */ 264static int ice_get_free_slot(void *array, int size, int curr) 265{ 266 int **tmp_array = (int **)array; 267 int next; 268 269 if (curr < (size - 1) && !tmp_array[curr + 1]) { 270 next = curr + 1; 271 } else { 272 int i = 0; 273 274 while ((i < size) && (tmp_array[i])) 275 i++; 276 if (i == size) 277 next = ICE_NO_VSI; 278 else 279 next = i; 280 } 281 return next; 282} 283 284/** 285 * ice_vsi_delete_from_hw - delete a VSI from the switch 286 * @vsi: pointer to VSI being removed 287 */ 288static void ice_vsi_delete_from_hw(struct ice_vsi *vsi) 289{ 290 struct ice_pf *pf = vsi->back; 291 struct ice_vsi_ctx *ctxt; 292 int status; 293 294 ice_fltr_remove_all(vsi); 295 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 296 if (!ctxt) 297 return; 298 299 if (vsi->type == ICE_VSI_VF) 300 ctxt->vf_num = vsi->vf->vf_id; 301 ctxt->vsi_num = vsi->vsi_num; 302 303 memcpy(&ctxt->info, &vsi->info, sizeof(ctxt->info)); 304 305 status = ice_free_vsi(&pf->hw, vsi->idx, ctxt, false, NULL); 306 if (status) 307 dev_err(ice_pf_to_dev(pf), "Failed to delete VSI %i in FW - error: %d\n", 308 vsi->vsi_num, status); 309 310 kfree(ctxt); 311} 312 313/** 314 * ice_vsi_free_arrays - De-allocate queue and vector pointer arrays for the VSI 315 * @vsi: pointer to VSI being cleared 316 */ 317static void ice_vsi_free_arrays(struct ice_vsi *vsi) 318{ 319 struct ice_pf *pf = vsi->back; 320 struct device *dev; 321 322 dev = ice_pf_to_dev(pf); 323 324 bitmap_free(vsi->af_xdp_zc_qps); 325 vsi->af_xdp_zc_qps = NULL; 326 /* free the ring and vector containers */ 327 devm_kfree(dev, vsi->q_vectors); 328 vsi->q_vectors = NULL; 329 devm_kfree(dev, vsi->tx_rings); 330 vsi->tx_rings = NULL; 331 devm_kfree(dev, vsi->rx_rings); 332 vsi->rx_rings = NULL; 333 devm_kfree(dev, vsi->txq_map); 334 vsi->txq_map = NULL; 335 devm_kfree(dev, vsi->rxq_map); 336 vsi->rxq_map = NULL; 337} 338 339/** 340 * ice_vsi_free_stats - Free the ring statistics structures 341 * @vsi: VSI pointer 342 */ 343static void ice_vsi_free_stats(struct ice_vsi *vsi) 344{ 345 struct ice_vsi_stats *vsi_stat; 346 struct ice_pf *pf = vsi->back; 347 int i; 348 349 if (vsi->type == ICE_VSI_CHNL) 350 return; 351 if (!pf->vsi_stats) 352 return; 353 354 vsi_stat = pf->vsi_stats[vsi->idx]; 355 if (!vsi_stat) 356 return; 357 358 ice_for_each_alloc_txq(vsi, i) { 359 if (vsi_stat->tx_ring_stats[i]) { 360 kfree_rcu(vsi_stat->tx_ring_stats[i], rcu); 361 WRITE_ONCE(vsi_stat->tx_ring_stats[i], NULL); 362 } 363 } 364 365 ice_for_each_alloc_rxq(vsi, i) { 366 if (vsi_stat->rx_ring_stats[i]) { 367 kfree_rcu(vsi_stat->rx_ring_stats[i], rcu); 368 WRITE_ONCE(vsi_stat->rx_ring_stats[i], NULL); 369 } 370 } 371 372 kfree(vsi_stat->tx_ring_stats); 373 kfree(vsi_stat->rx_ring_stats); 374 kfree(vsi_stat); 375 pf->vsi_stats[vsi->idx] = NULL; 376} 377 378/** 379 * ice_vsi_alloc_ring_stats - Allocates Tx and Rx ring stats for the VSI 380 * @vsi: VSI which is having stats allocated 381 */ 382static int ice_vsi_alloc_ring_stats(struct ice_vsi *vsi) 383{ 384 struct ice_ring_stats **tx_ring_stats; 385 struct ice_ring_stats **rx_ring_stats; 386 struct ice_vsi_stats *vsi_stats; 387 struct ice_pf *pf = vsi->back; 388 u16 i; 389 390 vsi_stats = pf->vsi_stats[vsi->idx]; 391 tx_ring_stats = vsi_stats->tx_ring_stats; 392 rx_ring_stats = vsi_stats->rx_ring_stats; 393 394 /* Allocate Tx ring stats */ 395 ice_for_each_alloc_txq(vsi, i) { 396 struct ice_ring_stats *ring_stats; 397 struct ice_tx_ring *ring; 398 399 ring = vsi->tx_rings[i]; 400 ring_stats = tx_ring_stats[i]; 401 402 if (!ring_stats) { 403 ring_stats = kzalloc(sizeof(*ring_stats), GFP_KERNEL); 404 if (!ring_stats) 405 goto err_out; 406 407 WRITE_ONCE(tx_ring_stats[i], ring_stats); 408 } 409 410 ring->ring_stats = ring_stats; 411 } 412 413 /* Allocate Rx ring stats */ 414 ice_for_each_alloc_rxq(vsi, i) { 415 struct ice_ring_stats *ring_stats; 416 struct ice_rx_ring *ring; 417 418 ring = vsi->rx_rings[i]; 419 ring_stats = rx_ring_stats[i]; 420 421 if (!ring_stats) { 422 ring_stats = kzalloc(sizeof(*ring_stats), GFP_KERNEL); 423 if (!ring_stats) 424 goto err_out; 425 426 WRITE_ONCE(rx_ring_stats[i], ring_stats); 427 } 428 429 ring->ring_stats = ring_stats; 430 } 431 432 return 0; 433 434err_out: 435 ice_vsi_free_stats(vsi); 436 return -ENOMEM; 437} 438 439/** 440 * ice_vsi_free - clean up and deallocate the provided VSI 441 * @vsi: pointer to VSI being cleared 442 * 443 * This deallocates the VSI's queue resources, removes it from the PF's 444 * VSI array if necessary, and deallocates the VSI 445 */ 446static void ice_vsi_free(struct ice_vsi *vsi) 447{ 448 struct ice_pf *pf = NULL; 449 struct device *dev; 450 451 if (!vsi || !vsi->back) 452 return; 453 454 pf = vsi->back; 455 dev = ice_pf_to_dev(pf); 456 457 if (!pf->vsi[vsi->idx] || pf->vsi[vsi->idx] != vsi) { 458 dev_dbg(dev, "vsi does not exist at pf->vsi[%d]\n", vsi->idx); 459 return; 460 } 461 462 mutex_lock(&pf->sw_mutex); 463 /* updates the PF for this cleared VSI */ 464 465 pf->vsi[vsi->idx] = NULL; 466 pf->next_vsi = vsi->idx; 467 468 ice_vsi_free_stats(vsi); 469 ice_vsi_free_arrays(vsi); 470 mutex_unlock(&pf->sw_mutex); 471 devm_kfree(dev, vsi); 472} 473 474void ice_vsi_delete(struct ice_vsi *vsi) 475{ 476 ice_vsi_delete_from_hw(vsi); 477 ice_vsi_free(vsi); 478} 479 480/** 481 * ice_msix_clean_ctrl_vsi - MSIX mode interrupt handler for ctrl VSI 482 * @irq: interrupt number 483 * @data: pointer to a q_vector 484 */ 485static irqreturn_t ice_msix_clean_ctrl_vsi(int __always_unused irq, void *data) 486{ 487 struct ice_q_vector *q_vector = (struct ice_q_vector *)data; 488 489 if (!q_vector->tx.tx_ring) 490 return IRQ_HANDLED; 491 492#define FDIR_RX_DESC_CLEAN_BUDGET 64 493 ice_clean_rx_irq(q_vector->rx.rx_ring, FDIR_RX_DESC_CLEAN_BUDGET); 494 ice_clean_ctrl_tx_irq(q_vector->tx.tx_ring); 495 496 return IRQ_HANDLED; 497} 498 499/** 500 * ice_msix_clean_rings - MSIX mode Interrupt Handler 501 * @irq: interrupt number 502 * @data: pointer to a q_vector 503 */ 504static irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data) 505{ 506 struct ice_q_vector *q_vector = (struct ice_q_vector *)data; 507 508 if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring) 509 return IRQ_HANDLED; 510 511 q_vector->total_events++; 512 513 napi_schedule(&q_vector->napi); 514 515 return IRQ_HANDLED; 516} 517 518static irqreturn_t ice_eswitch_msix_clean_rings(int __always_unused irq, void *data) 519{ 520 struct ice_q_vector *q_vector = (struct ice_q_vector *)data; 521 struct ice_pf *pf = q_vector->vsi->back; 522 struct ice_vf *vf; 523 unsigned int bkt; 524 525 if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring) 526 return IRQ_HANDLED; 527 528 rcu_read_lock(); 529 ice_for_each_vf_rcu(pf, bkt, vf) 530 napi_schedule(&vf->repr->q_vector->napi); 531 rcu_read_unlock(); 532 533 return IRQ_HANDLED; 534} 535 536/** 537 * ice_vsi_alloc_stat_arrays - Allocate statistics arrays 538 * @vsi: VSI pointer 539 */ 540static int ice_vsi_alloc_stat_arrays(struct ice_vsi *vsi) 541{ 542 struct ice_vsi_stats *vsi_stat; 543 struct ice_pf *pf = vsi->back; 544 545 if (vsi->type == ICE_VSI_CHNL) 546 return 0; 547 if (!pf->vsi_stats) 548 return -ENOENT; 549 550 if (pf->vsi_stats[vsi->idx]) 551 /* realloc will happen in rebuild path */ 552 return 0; 553 554 vsi_stat = kzalloc(sizeof(*vsi_stat), GFP_KERNEL); 555 if (!vsi_stat) 556 return -ENOMEM; 557 558 vsi_stat->tx_ring_stats = 559 kcalloc(vsi->alloc_txq, sizeof(*vsi_stat->tx_ring_stats), 560 GFP_KERNEL); 561 if (!vsi_stat->tx_ring_stats) 562 goto err_alloc_tx; 563 564 vsi_stat->rx_ring_stats = 565 kcalloc(vsi->alloc_rxq, sizeof(*vsi_stat->rx_ring_stats), 566 GFP_KERNEL); 567 if (!vsi_stat->rx_ring_stats) 568 goto err_alloc_rx; 569 570 pf->vsi_stats[vsi->idx] = vsi_stat; 571 572 return 0; 573 574err_alloc_rx: 575 kfree(vsi_stat->rx_ring_stats); 576err_alloc_tx: 577 kfree(vsi_stat->tx_ring_stats); 578 kfree(vsi_stat); 579 pf->vsi_stats[vsi->idx] = NULL; 580 return -ENOMEM; 581} 582 583/** 584 * ice_vsi_alloc_def - set default values for already allocated VSI 585 * @vsi: ptr to VSI 586 * @ch: ptr to channel 587 */ 588static int 589ice_vsi_alloc_def(struct ice_vsi *vsi, struct ice_channel *ch) 590{ 591 if (vsi->type != ICE_VSI_CHNL) { 592 ice_vsi_set_num_qs(vsi); 593 if (ice_vsi_alloc_arrays(vsi)) 594 return -ENOMEM; 595 } 596 597 switch (vsi->type) { 598 case ICE_VSI_SWITCHDEV_CTRL: 599 /* Setup eswitch MSIX irq handler for VSI */ 600 vsi->irq_handler = ice_eswitch_msix_clean_rings; 601 break; 602 case ICE_VSI_PF: 603 /* Setup default MSIX irq handler for VSI */ 604 vsi->irq_handler = ice_msix_clean_rings; 605 break; 606 case ICE_VSI_CTRL: 607 /* Setup ctrl VSI MSIX irq handler */ 608 vsi->irq_handler = ice_msix_clean_ctrl_vsi; 609 break; 610 case ICE_VSI_CHNL: 611 if (!ch) 612 return -EINVAL; 613 614 vsi->num_rxq = ch->num_rxq; 615 vsi->num_txq = ch->num_txq; 616 vsi->next_base_q = ch->base_q; 617 break; 618 case ICE_VSI_VF: 619 case ICE_VSI_LB: 620 break; 621 default: 622 ice_vsi_free_arrays(vsi); 623 return -EINVAL; 624 } 625 626 return 0; 627} 628 629/** 630 * ice_vsi_alloc - Allocates the next available struct VSI in the PF 631 * @pf: board private structure 632 * 633 * Reserves a VSI index from the PF and allocates an empty VSI structure 634 * without a type. The VSI structure must later be initialized by calling 635 * ice_vsi_cfg(). 636 * 637 * returns a pointer to a VSI on success, NULL on failure. 638 */ 639static struct ice_vsi *ice_vsi_alloc(struct ice_pf *pf) 640{ 641 struct device *dev = ice_pf_to_dev(pf); 642 struct ice_vsi *vsi = NULL; 643 644 /* Need to protect the allocation of the VSIs at the PF level */ 645 mutex_lock(&pf->sw_mutex); 646 647 /* If we have already allocated our maximum number of VSIs, 648 * pf->next_vsi will be ICE_NO_VSI. If not, pf->next_vsi index 649 * is available to be populated 650 */ 651 if (pf->next_vsi == ICE_NO_VSI) { 652 dev_dbg(dev, "out of VSI slots!\n"); 653 goto unlock_pf; 654 } 655 656 vsi = devm_kzalloc(dev, sizeof(*vsi), GFP_KERNEL); 657 if (!vsi) 658 goto unlock_pf; 659 660 vsi->back = pf; 661 set_bit(ICE_VSI_DOWN, vsi->state); 662 663 /* fill slot and make note of the index */ 664 vsi->idx = pf->next_vsi; 665 pf->vsi[pf->next_vsi] = vsi; 666 667 /* prepare pf->next_vsi for next use */ 668 pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi, 669 pf->next_vsi); 670 671unlock_pf: 672 mutex_unlock(&pf->sw_mutex); 673 return vsi; 674} 675 676/** 677 * ice_alloc_fd_res - Allocate FD resource for a VSI 678 * @vsi: pointer to the ice_vsi 679 * 680 * This allocates the FD resources 681 * 682 * Returns 0 on success, -EPERM on no-op or -EIO on failure 683 */ 684static int ice_alloc_fd_res(struct ice_vsi *vsi) 685{ 686 struct ice_pf *pf = vsi->back; 687 u32 g_val, b_val; 688 689 /* Flow Director filters are only allocated/assigned to the PF VSI or 690 * CHNL VSI which passes the traffic. The CTRL VSI is only used to 691 * add/delete filters so resources are not allocated to it 692 */ 693 if (!test_bit(ICE_FLAG_FD_ENA, pf->flags)) 694 return -EPERM; 695 696 if (!(vsi->type == ICE_VSI_PF || vsi->type == ICE_VSI_VF || 697 vsi->type == ICE_VSI_CHNL)) 698 return -EPERM; 699 700 /* FD filters from guaranteed pool per VSI */ 701 g_val = pf->hw.func_caps.fd_fltr_guar; 702 if (!g_val) 703 return -EPERM; 704 705 /* FD filters from best effort pool */ 706 b_val = pf->hw.func_caps.fd_fltr_best_effort; 707 if (!b_val) 708 return -EPERM; 709 710 /* PF main VSI gets only 64 FD resources from guaranteed pool 711 * when ADQ is configured. 712 */ 713#define ICE_PF_VSI_GFLTR 64 714 715 /* determine FD filter resources per VSI from shared(best effort) and 716 * dedicated pool 717 */ 718 if (vsi->type == ICE_VSI_PF) { 719 vsi->num_gfltr = g_val; 720 /* if MQPRIO is configured, main VSI doesn't get all FD 721 * resources from guaranteed pool. PF VSI gets 64 FD resources 722 */ 723 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) { 724 if (g_val < ICE_PF_VSI_GFLTR) 725 return -EPERM; 726 /* allow bare minimum entries for PF VSI */ 727 vsi->num_gfltr = ICE_PF_VSI_GFLTR; 728 } 729 730 /* each VSI gets same "best_effort" quota */ 731 vsi->num_bfltr = b_val; 732 } else if (vsi->type == ICE_VSI_VF) { 733 vsi->num_gfltr = 0; 734 735 /* each VSI gets same "best_effort" quota */ 736 vsi->num_bfltr = b_val; 737 } else { 738 struct ice_vsi *main_vsi; 739 int numtc; 740 741 main_vsi = ice_get_main_vsi(pf); 742 if (!main_vsi) 743 return -EPERM; 744 745 if (!main_vsi->all_numtc) 746 return -EINVAL; 747 748 /* figure out ADQ numtc */ 749 numtc = main_vsi->all_numtc - ICE_CHNL_START_TC; 750 751 /* only one TC but still asking resources for channels, 752 * invalid config 753 */ 754 if (numtc < ICE_CHNL_START_TC) 755 return -EPERM; 756 757 g_val -= ICE_PF_VSI_GFLTR; 758 /* channel VSIs gets equal share from guaranteed pool */ 759 vsi->num_gfltr = g_val / numtc; 760 761 /* each VSI gets same "best_effort" quota */ 762 vsi->num_bfltr = b_val; 763 } 764 765 return 0; 766} 767 768/** 769 * ice_vsi_get_qs - Assign queues from PF to VSI 770 * @vsi: the VSI to assign queues to 771 * 772 * Returns 0 on success and a negative value on error 773 */ 774static int ice_vsi_get_qs(struct ice_vsi *vsi) 775{ 776 struct ice_pf *pf = vsi->back; 777 struct ice_qs_cfg tx_qs_cfg = { 778 .qs_mutex = &pf->avail_q_mutex, 779 .pf_map = pf->avail_txqs, 780 .pf_map_size = pf->max_pf_txqs, 781 .q_count = vsi->alloc_txq, 782 .scatter_count = ICE_MAX_SCATTER_TXQS, 783 .vsi_map = vsi->txq_map, 784 .vsi_map_offset = 0, 785 .mapping_mode = ICE_VSI_MAP_CONTIG 786 }; 787 struct ice_qs_cfg rx_qs_cfg = { 788 .qs_mutex = &pf->avail_q_mutex, 789 .pf_map = pf->avail_rxqs, 790 .pf_map_size = pf->max_pf_rxqs, 791 .q_count = vsi->alloc_rxq, 792 .scatter_count = ICE_MAX_SCATTER_RXQS, 793 .vsi_map = vsi->rxq_map, 794 .vsi_map_offset = 0, 795 .mapping_mode = ICE_VSI_MAP_CONTIG 796 }; 797 int ret; 798 799 if (vsi->type == ICE_VSI_CHNL) 800 return 0; 801 802 ret = __ice_vsi_get_qs(&tx_qs_cfg); 803 if (ret) 804 return ret; 805 vsi->tx_mapping_mode = tx_qs_cfg.mapping_mode; 806 807 ret = __ice_vsi_get_qs(&rx_qs_cfg); 808 if (ret) 809 return ret; 810 vsi->rx_mapping_mode = rx_qs_cfg.mapping_mode; 811 812 return 0; 813} 814 815/** 816 * ice_vsi_put_qs - Release queues from VSI to PF 817 * @vsi: the VSI that is going to release queues 818 */ 819static void ice_vsi_put_qs(struct ice_vsi *vsi) 820{ 821 struct ice_pf *pf = vsi->back; 822 int i; 823 824 mutex_lock(&pf->avail_q_mutex); 825 826 ice_for_each_alloc_txq(vsi, i) { 827 clear_bit(vsi->txq_map[i], pf->avail_txqs); 828 vsi->txq_map[i] = ICE_INVAL_Q_INDEX; 829 } 830 831 ice_for_each_alloc_rxq(vsi, i) { 832 clear_bit(vsi->rxq_map[i], pf->avail_rxqs); 833 vsi->rxq_map[i] = ICE_INVAL_Q_INDEX; 834 } 835 836 mutex_unlock(&pf->avail_q_mutex); 837} 838 839/** 840 * ice_is_safe_mode 841 * @pf: pointer to the PF struct 842 * 843 * returns true if driver is in safe mode, false otherwise 844 */ 845bool ice_is_safe_mode(struct ice_pf *pf) 846{ 847 return !test_bit(ICE_FLAG_ADV_FEATURES, pf->flags); 848} 849 850/** 851 * ice_is_rdma_ena 852 * @pf: pointer to the PF struct 853 * 854 * returns true if RDMA is currently supported, false otherwise 855 */ 856bool ice_is_rdma_ena(struct ice_pf *pf) 857{ 858 return test_bit(ICE_FLAG_RDMA_ENA, pf->flags); 859} 860 861/** 862 * ice_vsi_clean_rss_flow_fld - Delete RSS configuration 863 * @vsi: the VSI being cleaned up 864 * 865 * This function deletes RSS input set for all flows that were configured 866 * for this VSI 867 */ 868static void ice_vsi_clean_rss_flow_fld(struct ice_vsi *vsi) 869{ 870 struct ice_pf *pf = vsi->back; 871 int status; 872 873 if (ice_is_safe_mode(pf)) 874 return; 875 876 status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx); 877 if (status) 878 dev_dbg(ice_pf_to_dev(pf), "ice_rem_vsi_rss_cfg failed for vsi = %d, error = %d\n", 879 vsi->vsi_num, status); 880} 881 882/** 883 * ice_rss_clean - Delete RSS related VSI structures and configuration 884 * @vsi: the VSI being removed 885 */ 886static void ice_rss_clean(struct ice_vsi *vsi) 887{ 888 struct ice_pf *pf = vsi->back; 889 struct device *dev; 890 891 dev = ice_pf_to_dev(pf); 892 893 devm_kfree(dev, vsi->rss_hkey_user); 894 devm_kfree(dev, vsi->rss_lut_user); 895 896 ice_vsi_clean_rss_flow_fld(vsi); 897 /* remove RSS replay list */ 898 if (!ice_is_safe_mode(pf)) 899 ice_rem_vsi_rss_list(&pf->hw, vsi->idx); 900} 901 902/** 903 * ice_vsi_set_rss_params - Setup RSS capabilities per VSI type 904 * @vsi: the VSI being configured 905 */ 906static void ice_vsi_set_rss_params(struct ice_vsi *vsi) 907{ 908 struct ice_hw_common_caps *cap; 909 struct ice_pf *pf = vsi->back; 910 u16 max_rss_size; 911 912 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 913 vsi->rss_size = 1; 914 return; 915 } 916 917 cap = &pf->hw.func_caps.common_cap; 918 max_rss_size = BIT(cap->rss_table_entry_width); 919 switch (vsi->type) { 920 case ICE_VSI_CHNL: 921 case ICE_VSI_PF: 922 /* PF VSI will inherit RSS instance of PF */ 923 vsi->rss_table_size = (u16)cap->rss_table_size; 924 if (vsi->type == ICE_VSI_CHNL) 925 vsi->rss_size = min_t(u16, vsi->num_rxq, max_rss_size); 926 else 927 vsi->rss_size = min_t(u16, num_online_cpus(), 928 max_rss_size); 929 vsi->rss_lut_type = ICE_LUT_PF; 930 break; 931 case ICE_VSI_SWITCHDEV_CTRL: 932 vsi->rss_table_size = ICE_LUT_VSI_SIZE; 933 vsi->rss_size = min_t(u16, num_online_cpus(), max_rss_size); 934 vsi->rss_lut_type = ICE_LUT_VSI; 935 break; 936 case ICE_VSI_VF: 937 /* VF VSI will get a small RSS table. 938 * For VSI_LUT, LUT size should be set to 64 bytes. 939 */ 940 vsi->rss_table_size = ICE_LUT_VSI_SIZE; 941 vsi->rss_size = ICE_MAX_RSS_QS_PER_VF; 942 vsi->rss_lut_type = ICE_LUT_VSI; 943 break; 944 case ICE_VSI_LB: 945 break; 946 default: 947 dev_dbg(ice_pf_to_dev(pf), "Unsupported VSI type %s\n", 948 ice_vsi_type_str(vsi->type)); 949 break; 950 } 951} 952 953/** 954 * ice_set_dflt_vsi_ctx - Set default VSI context before adding a VSI 955 * @hw: HW structure used to determine the VLAN mode of the device 956 * @ctxt: the VSI context being set 957 * 958 * This initializes a default VSI context for all sections except the Queues. 959 */ 960static void ice_set_dflt_vsi_ctx(struct ice_hw *hw, struct ice_vsi_ctx *ctxt) 961{ 962 u32 table = 0; 963 964 memset(&ctxt->info, 0, sizeof(ctxt->info)); 965 /* VSI's should be allocated from shared pool */ 966 ctxt->alloc_from_pool = true; 967 /* Src pruning enabled by default */ 968 ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE; 969 /* Traffic from VSI can be sent to LAN */ 970 ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; 971 /* allow all untagged/tagged packets by default on Tx */ 972 ctxt->info.inner_vlan_flags = ((ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL & 973 ICE_AQ_VSI_INNER_VLAN_TX_MODE_M) >> 974 ICE_AQ_VSI_INNER_VLAN_TX_MODE_S); 975 /* SVM - by default bits 3 and 4 in inner_vlan_flags are 0's which 976 * results in legacy behavior (show VLAN, DEI, and UP) in descriptor. 977 * 978 * DVM - leave inner VLAN in packet by default 979 */ 980 if (ice_is_dvm_ena(hw)) { 981 ctxt->info.inner_vlan_flags |= 982 FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M, 983 ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING); 984 ctxt->info.outer_vlan_flags = 985 (ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL << 986 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) & 987 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M; 988 ctxt->info.outer_vlan_flags |= 989 (ICE_AQ_VSI_OUTER_TAG_VLAN_8100 << 990 ICE_AQ_VSI_OUTER_TAG_TYPE_S) & 991 ICE_AQ_VSI_OUTER_TAG_TYPE_M; 992 ctxt->info.outer_vlan_flags |= 993 FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_EMODE_M, 994 ICE_AQ_VSI_OUTER_VLAN_EMODE_NOTHING); 995 } 996 /* Have 1:1 UP mapping for both ingress/egress tables */ 997 table |= ICE_UP_TABLE_TRANSLATE(0, 0); 998 table |= ICE_UP_TABLE_TRANSLATE(1, 1); 999 table |= ICE_UP_TABLE_TRANSLATE(2, 2); 1000 table |= ICE_UP_TABLE_TRANSLATE(3, 3); 1001 table |= ICE_UP_TABLE_TRANSLATE(4, 4); 1002 table |= ICE_UP_TABLE_TRANSLATE(5, 5); 1003 table |= ICE_UP_TABLE_TRANSLATE(6, 6); 1004 table |= ICE_UP_TABLE_TRANSLATE(7, 7); 1005 ctxt->info.ingress_table = cpu_to_le32(table); 1006 ctxt->info.egress_table = cpu_to_le32(table); 1007 /* Have 1:1 UP mapping for outer to inner UP table */ 1008 ctxt->info.outer_up_table = cpu_to_le32(table); 1009 /* No Outer tag support outer_tag_flags remains to zero */ 1010} 1011 1012/** 1013 * ice_vsi_setup_q_map - Setup a VSI queue map 1014 * @vsi: the VSI being configured 1015 * @ctxt: VSI context structure 1016 */ 1017static int ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) 1018{ 1019 u16 offset = 0, qmap = 0, tx_count = 0, rx_count = 0, pow = 0; 1020 u16 num_txq_per_tc, num_rxq_per_tc; 1021 u16 qcount_tx = vsi->alloc_txq; 1022 u16 qcount_rx = vsi->alloc_rxq; 1023 u8 netdev_tc = 0; 1024 int i; 1025 1026 if (!vsi->tc_cfg.numtc) { 1027 /* at least TC0 should be enabled by default */ 1028 vsi->tc_cfg.numtc = 1; 1029 vsi->tc_cfg.ena_tc = 1; 1030 } 1031 1032 num_rxq_per_tc = min_t(u16, qcount_rx / vsi->tc_cfg.numtc, ICE_MAX_RXQS_PER_TC); 1033 if (!num_rxq_per_tc) 1034 num_rxq_per_tc = 1; 1035 num_txq_per_tc = qcount_tx / vsi->tc_cfg.numtc; 1036 if (!num_txq_per_tc) 1037 num_txq_per_tc = 1; 1038 1039 /* find the (rounded up) power-of-2 of qcount */ 1040 pow = (u16)order_base_2(num_rxq_per_tc); 1041 1042 /* TC mapping is a function of the number of Rx queues assigned to the 1043 * VSI for each traffic class and the offset of these queues. 1044 * The first 10 bits are for queue offset for TC0, next 4 bits for no:of 1045 * queues allocated to TC0. No:of queues is a power-of-2. 1046 * 1047 * If TC is not enabled, the queue offset is set to 0, and allocate one 1048 * queue, this way, traffic for the given TC will be sent to the default 1049 * queue. 1050 * 1051 * Setup number and offset of Rx queues for all TCs for the VSI 1052 */ 1053 ice_for_each_traffic_class(i) { 1054 if (!(vsi->tc_cfg.ena_tc & BIT(i))) { 1055 /* TC is not enabled */ 1056 vsi->tc_cfg.tc_info[i].qoffset = 0; 1057 vsi->tc_cfg.tc_info[i].qcount_rx = 1; 1058 vsi->tc_cfg.tc_info[i].qcount_tx = 1; 1059 vsi->tc_cfg.tc_info[i].netdev_tc = 0; 1060 ctxt->info.tc_mapping[i] = 0; 1061 continue; 1062 } 1063 1064 /* TC is enabled */ 1065 vsi->tc_cfg.tc_info[i].qoffset = offset; 1066 vsi->tc_cfg.tc_info[i].qcount_rx = num_rxq_per_tc; 1067 vsi->tc_cfg.tc_info[i].qcount_tx = num_txq_per_tc; 1068 vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++; 1069 1070 qmap = ((offset << ICE_AQ_VSI_TC_Q_OFFSET_S) & 1071 ICE_AQ_VSI_TC_Q_OFFSET_M) | 1072 ((pow << ICE_AQ_VSI_TC_Q_NUM_S) & 1073 ICE_AQ_VSI_TC_Q_NUM_M); 1074 offset += num_rxq_per_tc; 1075 tx_count += num_txq_per_tc; 1076 ctxt->info.tc_mapping[i] = cpu_to_le16(qmap); 1077 } 1078 1079 /* if offset is non-zero, means it is calculated correctly based on 1080 * enabled TCs for a given VSI otherwise qcount_rx will always 1081 * be correct and non-zero because it is based off - VSI's 1082 * allocated Rx queues which is at least 1 (hence qcount_tx will be 1083 * at least 1) 1084 */ 1085 if (offset) 1086 rx_count = offset; 1087 else 1088 rx_count = num_rxq_per_tc; 1089 1090 if (rx_count > vsi->alloc_rxq) { 1091 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Rx queues (%u), than were allocated (%u)!\n", 1092 rx_count, vsi->alloc_rxq); 1093 return -EINVAL; 1094 } 1095 1096 if (tx_count > vsi->alloc_txq) { 1097 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Tx queues (%u), than were allocated (%u)!\n", 1098 tx_count, vsi->alloc_txq); 1099 return -EINVAL; 1100 } 1101 1102 vsi->num_txq = tx_count; 1103 vsi->num_rxq = rx_count; 1104 1105 if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) { 1106 dev_dbg(ice_pf_to_dev(vsi->back), "VF VSI should have same number of Tx and Rx queues. Hence making them equal\n"); 1107 /* since there is a chance that num_rxq could have been changed 1108 * in the above for loop, make num_txq equal to num_rxq. 1109 */ 1110 vsi->num_txq = vsi->num_rxq; 1111 } 1112 1113 /* Rx queue mapping */ 1114 ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG); 1115 /* q_mapping buffer holds the info for the first queue allocated for 1116 * this VSI in the PF space and also the number of queues associated 1117 * with this VSI. 1118 */ 1119 ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]); 1120 ctxt->info.q_mapping[1] = cpu_to_le16(vsi->num_rxq); 1121 1122 return 0; 1123} 1124 1125/** 1126 * ice_set_fd_vsi_ctx - Set FD VSI context before adding a VSI 1127 * @ctxt: the VSI context being set 1128 * @vsi: the VSI being configured 1129 */ 1130static void ice_set_fd_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) 1131{ 1132 u8 dflt_q_group, dflt_q_prio; 1133 u16 dflt_q, report_q, val; 1134 1135 if (vsi->type != ICE_VSI_PF && vsi->type != ICE_VSI_CTRL && 1136 vsi->type != ICE_VSI_VF && vsi->type != ICE_VSI_CHNL) 1137 return; 1138 1139 val = ICE_AQ_VSI_PROP_FLOW_DIR_VALID; 1140 ctxt->info.valid_sections |= cpu_to_le16(val); 1141 dflt_q = 0; 1142 dflt_q_group = 0; 1143 report_q = 0; 1144 dflt_q_prio = 0; 1145 1146 /* enable flow director filtering/programming */ 1147 val = ICE_AQ_VSI_FD_ENABLE | ICE_AQ_VSI_FD_PROG_ENABLE; 1148 ctxt->info.fd_options = cpu_to_le16(val); 1149 /* max of allocated flow director filters */ 1150 ctxt->info.max_fd_fltr_dedicated = 1151 cpu_to_le16(vsi->num_gfltr); 1152 /* max of shared flow director filters any VSI may program */ 1153 ctxt->info.max_fd_fltr_shared = 1154 cpu_to_le16(vsi->num_bfltr); 1155 /* default queue index within the VSI of the default FD */ 1156 val = ((dflt_q << ICE_AQ_VSI_FD_DEF_Q_S) & 1157 ICE_AQ_VSI_FD_DEF_Q_M); 1158 /* target queue or queue group to the FD filter */ 1159 val |= ((dflt_q_group << ICE_AQ_VSI_FD_DEF_GRP_S) & 1160 ICE_AQ_VSI_FD_DEF_GRP_M); 1161 ctxt->info.fd_def_q = cpu_to_le16(val); 1162 /* queue index on which FD filter completion is reported */ 1163 val = ((report_q << ICE_AQ_VSI_FD_REPORT_Q_S) & 1164 ICE_AQ_VSI_FD_REPORT_Q_M); 1165 /* priority of the default qindex action */ 1166 val |= ((dflt_q_prio << ICE_AQ_VSI_FD_DEF_PRIORITY_S) & 1167 ICE_AQ_VSI_FD_DEF_PRIORITY_M); 1168 ctxt->info.fd_report_opt = cpu_to_le16(val); 1169} 1170 1171/** 1172 * ice_set_rss_vsi_ctx - Set RSS VSI context before adding a VSI 1173 * @ctxt: the VSI context being set 1174 * @vsi: the VSI being configured 1175 */ 1176static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) 1177{ 1178 u8 lut_type, hash_type; 1179 struct device *dev; 1180 struct ice_pf *pf; 1181 1182 pf = vsi->back; 1183 dev = ice_pf_to_dev(pf); 1184 1185 switch (vsi->type) { 1186 case ICE_VSI_CHNL: 1187 case ICE_VSI_PF: 1188 /* PF VSI will inherit RSS instance of PF */ 1189 lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_PF; 1190 hash_type = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; 1191 break; 1192 case ICE_VSI_VF: 1193 /* VF VSI will gets a small RSS table which is a VSI LUT type */ 1194 lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI; 1195 hash_type = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; 1196 break; 1197 default: 1198 dev_dbg(dev, "Unsupported VSI type %s\n", 1199 ice_vsi_type_str(vsi->type)); 1200 return; 1201 } 1202 1203 ctxt->info.q_opt_rss = ((lut_type << ICE_AQ_VSI_Q_OPT_RSS_LUT_S) & 1204 ICE_AQ_VSI_Q_OPT_RSS_LUT_M) | 1205 (hash_type & ICE_AQ_VSI_Q_OPT_RSS_HASH_M); 1206} 1207 1208static void 1209ice_chnl_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) 1210{ 1211 struct ice_pf *pf = vsi->back; 1212 u16 qcount, qmap; 1213 u8 offset = 0; 1214 int pow; 1215 1216 qcount = min_t(int, vsi->num_rxq, pf->num_lan_msix); 1217 1218 pow = order_base_2(qcount); 1219 qmap = ((offset << ICE_AQ_VSI_TC_Q_OFFSET_S) & 1220 ICE_AQ_VSI_TC_Q_OFFSET_M) | 1221 ((pow << ICE_AQ_VSI_TC_Q_NUM_S) & 1222 ICE_AQ_VSI_TC_Q_NUM_M); 1223 1224 ctxt->info.tc_mapping[0] = cpu_to_le16(qmap); 1225 ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG); 1226 ctxt->info.q_mapping[0] = cpu_to_le16(vsi->next_base_q); 1227 ctxt->info.q_mapping[1] = cpu_to_le16(qcount); 1228} 1229 1230/** 1231 * ice_vsi_is_vlan_pruning_ena - check if VLAN pruning is enabled or not 1232 * @vsi: VSI to check whether or not VLAN pruning is enabled. 1233 * 1234 * returns true if Rx VLAN pruning is enabled and false otherwise. 1235 */ 1236static bool ice_vsi_is_vlan_pruning_ena(struct ice_vsi *vsi) 1237{ 1238 return vsi->info.sw_flags2 & ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 1239} 1240 1241/** 1242 * ice_vsi_init - Create and initialize a VSI 1243 * @vsi: the VSI being configured 1244 * @vsi_flags: VSI configuration flags 1245 * 1246 * Set ICE_FLAG_VSI_INIT to initialize a new VSI context, clear it to 1247 * reconfigure an existing context. 1248 * 1249 * This initializes a VSI context depending on the VSI type to be added and 1250 * passes it down to the add_vsi aq command to create a new VSI. 1251 */ 1252static int ice_vsi_init(struct ice_vsi *vsi, u32 vsi_flags) 1253{ 1254 struct ice_pf *pf = vsi->back; 1255 struct ice_hw *hw = &pf->hw; 1256 struct ice_vsi_ctx *ctxt; 1257 struct device *dev; 1258 int ret = 0; 1259 1260 dev = ice_pf_to_dev(pf); 1261 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 1262 if (!ctxt) 1263 return -ENOMEM; 1264 1265 switch (vsi->type) { 1266 case ICE_VSI_CTRL: 1267 case ICE_VSI_LB: 1268 case ICE_VSI_PF: 1269 ctxt->flags = ICE_AQ_VSI_TYPE_PF; 1270 break; 1271 case ICE_VSI_SWITCHDEV_CTRL: 1272 case ICE_VSI_CHNL: 1273 ctxt->flags = ICE_AQ_VSI_TYPE_VMDQ2; 1274 break; 1275 case ICE_VSI_VF: 1276 ctxt->flags = ICE_AQ_VSI_TYPE_VF; 1277 /* VF number here is the absolute VF number (0-255) */ 1278 ctxt->vf_num = vsi->vf->vf_id + hw->func_caps.vf_base_id; 1279 break; 1280 default: 1281 ret = -ENODEV; 1282 goto out; 1283 } 1284 1285 /* Handle VLAN pruning for channel VSI if main VSI has VLAN 1286 * prune enabled 1287 */ 1288 if (vsi->type == ICE_VSI_CHNL) { 1289 struct ice_vsi *main_vsi; 1290 1291 main_vsi = ice_get_main_vsi(pf); 1292 if (main_vsi && ice_vsi_is_vlan_pruning_ena(main_vsi)) 1293 ctxt->info.sw_flags2 |= 1294 ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 1295 else 1296 ctxt->info.sw_flags2 &= 1297 ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 1298 } 1299 1300 ice_set_dflt_vsi_ctx(hw, ctxt); 1301 if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) 1302 ice_set_fd_vsi_ctx(ctxt, vsi); 1303 /* if the switch is in VEB mode, allow VSI loopback */ 1304 if (vsi->vsw->bridge_mode == BRIDGE_MODE_VEB) 1305 ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB; 1306 1307 /* Set LUT type and HASH type if RSS is enabled */ 1308 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags) && 1309 vsi->type != ICE_VSI_CTRL) { 1310 ice_set_rss_vsi_ctx(ctxt, vsi); 1311 /* if updating VSI context, make sure to set valid_section: 1312 * to indicate which section of VSI context being updated 1313 */ 1314 if (!(vsi_flags & ICE_VSI_FLAG_INIT)) 1315 ctxt->info.valid_sections |= 1316 cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID); 1317 } 1318 1319 ctxt->info.sw_id = vsi->port_info->sw_id; 1320 if (vsi->type == ICE_VSI_CHNL) { 1321 ice_chnl_vsi_setup_q_map(vsi, ctxt); 1322 } else { 1323 ret = ice_vsi_setup_q_map(vsi, ctxt); 1324 if (ret) 1325 goto out; 1326 1327 if (!(vsi_flags & ICE_VSI_FLAG_INIT)) 1328 /* means VSI being updated */ 1329 /* must to indicate which section of VSI context are 1330 * being modified 1331 */ 1332 ctxt->info.valid_sections |= 1333 cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID); 1334 } 1335 1336 /* Allow control frames out of main VSI */ 1337 if (vsi->type == ICE_VSI_PF) { 1338 ctxt->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; 1339 ctxt->info.valid_sections |= 1340 cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); 1341 } 1342 1343 if (vsi_flags & ICE_VSI_FLAG_INIT) { 1344 ret = ice_add_vsi(hw, vsi->idx, ctxt, NULL); 1345 if (ret) { 1346 dev_err(dev, "Add VSI failed, err %d\n", ret); 1347 ret = -EIO; 1348 goto out; 1349 } 1350 } else { 1351 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 1352 if (ret) { 1353 dev_err(dev, "Update VSI failed, err %d\n", ret); 1354 ret = -EIO; 1355 goto out; 1356 } 1357 } 1358 1359 /* keep context for update VSI operations */ 1360 vsi->info = ctxt->info; 1361 1362 /* record VSI number returned */ 1363 vsi->vsi_num = ctxt->vsi_num; 1364 1365out: 1366 kfree(ctxt); 1367 return ret; 1368} 1369 1370/** 1371 * ice_vsi_clear_rings - Deallocates the Tx and Rx rings for VSI 1372 * @vsi: the VSI having rings deallocated 1373 */ 1374static void ice_vsi_clear_rings(struct ice_vsi *vsi) 1375{ 1376 int i; 1377 1378 /* Avoid stale references by clearing map from vector to ring */ 1379 if (vsi->q_vectors) { 1380 ice_for_each_q_vector(vsi, i) { 1381 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 1382 1383 if (q_vector) { 1384 q_vector->tx.tx_ring = NULL; 1385 q_vector->rx.rx_ring = NULL; 1386 } 1387 } 1388 } 1389 1390 if (vsi->tx_rings) { 1391 ice_for_each_alloc_txq(vsi, i) { 1392 if (vsi->tx_rings[i]) { 1393 kfree_rcu(vsi->tx_rings[i], rcu); 1394 WRITE_ONCE(vsi->tx_rings[i], NULL); 1395 } 1396 } 1397 } 1398 if (vsi->rx_rings) { 1399 ice_for_each_alloc_rxq(vsi, i) { 1400 if (vsi->rx_rings[i]) { 1401 kfree_rcu(vsi->rx_rings[i], rcu); 1402 WRITE_ONCE(vsi->rx_rings[i], NULL); 1403 } 1404 } 1405 } 1406} 1407 1408/** 1409 * ice_vsi_alloc_rings - Allocates Tx and Rx rings for the VSI 1410 * @vsi: VSI which is having rings allocated 1411 */ 1412static int ice_vsi_alloc_rings(struct ice_vsi *vsi) 1413{ 1414 bool dvm_ena = ice_is_dvm_ena(&vsi->back->hw); 1415 struct ice_pf *pf = vsi->back; 1416 struct device *dev; 1417 u16 i; 1418 1419 dev = ice_pf_to_dev(pf); 1420 /* Allocate Tx rings */ 1421 ice_for_each_alloc_txq(vsi, i) { 1422 struct ice_tx_ring *ring; 1423 1424 /* allocate with kzalloc(), free with kfree_rcu() */ 1425 ring = kzalloc(sizeof(*ring), GFP_KERNEL); 1426 1427 if (!ring) 1428 goto err_out; 1429 1430 ring->q_index = i; 1431 ring->reg_idx = vsi->txq_map[i]; 1432 ring->vsi = vsi; 1433 ring->tx_tstamps = &pf->ptp.port.tx; 1434 ring->dev = dev; 1435 ring->count = vsi->num_tx_desc; 1436 ring->txq_teid = ICE_INVAL_TEID; 1437 if (dvm_ena) 1438 ring->flags |= ICE_TX_FLAGS_RING_VLAN_L2TAG2; 1439 else 1440 ring->flags |= ICE_TX_FLAGS_RING_VLAN_L2TAG1; 1441 WRITE_ONCE(vsi->tx_rings[i], ring); 1442 } 1443 1444 /* Allocate Rx rings */ 1445 ice_for_each_alloc_rxq(vsi, i) { 1446 struct ice_rx_ring *ring; 1447 1448 /* allocate with kzalloc(), free with kfree_rcu() */ 1449 ring = kzalloc(sizeof(*ring), GFP_KERNEL); 1450 if (!ring) 1451 goto err_out; 1452 1453 ring->q_index = i; 1454 ring->reg_idx = vsi->rxq_map[i]; 1455 ring->vsi = vsi; 1456 ring->netdev = vsi->netdev; 1457 ring->dev = dev; 1458 ring->count = vsi->num_rx_desc; 1459 ring->cached_phctime = pf->ptp.cached_phc_time; 1460 WRITE_ONCE(vsi->rx_rings[i], ring); 1461 } 1462 1463 return 0; 1464 1465err_out: 1466 ice_vsi_clear_rings(vsi); 1467 return -ENOMEM; 1468} 1469 1470/** 1471 * ice_vsi_manage_rss_lut - disable/enable RSS 1472 * @vsi: the VSI being changed 1473 * @ena: boolean value indicating if this is an enable or disable request 1474 * 1475 * In the event of disable request for RSS, this function will zero out RSS 1476 * LUT, while in the event of enable request for RSS, it will reconfigure RSS 1477 * LUT. 1478 */ 1479void ice_vsi_manage_rss_lut(struct ice_vsi *vsi, bool ena) 1480{ 1481 u8 *lut; 1482 1483 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 1484 if (!lut) 1485 return; 1486 1487 if (ena) { 1488 if (vsi->rss_lut_user) 1489 memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size); 1490 else 1491 ice_fill_rss_lut(lut, vsi->rss_table_size, 1492 vsi->rss_size); 1493 } 1494 1495 ice_set_rss_lut(vsi, lut, vsi->rss_table_size); 1496 kfree(lut); 1497} 1498 1499/** 1500 * ice_vsi_cfg_crc_strip - Configure CRC stripping for a VSI 1501 * @vsi: VSI to be configured 1502 * @disable: set to true to have FCS / CRC in the frame data 1503 */ 1504void ice_vsi_cfg_crc_strip(struct ice_vsi *vsi, bool disable) 1505{ 1506 int i; 1507 1508 ice_for_each_rxq(vsi, i) 1509 if (disable) 1510 vsi->rx_rings[i]->flags |= ICE_RX_FLAGS_CRC_STRIP_DIS; 1511 else 1512 vsi->rx_rings[i]->flags &= ~ICE_RX_FLAGS_CRC_STRIP_DIS; 1513} 1514 1515/** 1516 * ice_vsi_cfg_rss_lut_key - Configure RSS params for a VSI 1517 * @vsi: VSI to be configured 1518 */ 1519int ice_vsi_cfg_rss_lut_key(struct ice_vsi *vsi) 1520{ 1521 struct ice_pf *pf = vsi->back; 1522 struct device *dev; 1523 u8 *lut, *key; 1524 int err; 1525 1526 dev = ice_pf_to_dev(pf); 1527 if (vsi->type == ICE_VSI_PF && vsi->ch_rss_size && 1528 (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))) { 1529 vsi->rss_size = min_t(u16, vsi->rss_size, vsi->ch_rss_size); 1530 } else { 1531 vsi->rss_size = min_t(u16, vsi->rss_size, vsi->num_rxq); 1532 1533 /* If orig_rss_size is valid and it is less than determined 1534 * main VSI's rss_size, update main VSI's rss_size to be 1535 * orig_rss_size so that when tc-qdisc is deleted, main VSI 1536 * RSS table gets programmed to be correct (whatever it was 1537 * to begin with (prior to setup-tc for ADQ config) 1538 */ 1539 if (vsi->orig_rss_size && vsi->rss_size < vsi->orig_rss_size && 1540 vsi->orig_rss_size <= vsi->num_rxq) { 1541 vsi->rss_size = vsi->orig_rss_size; 1542 /* now orig_rss_size is used, reset it to zero */ 1543 vsi->orig_rss_size = 0; 1544 } 1545 } 1546 1547 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 1548 if (!lut) 1549 return -ENOMEM; 1550 1551 if (vsi->rss_lut_user) 1552 memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size); 1553 else 1554 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); 1555 1556 err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size); 1557 if (err) { 1558 dev_err(dev, "set_rss_lut failed, error %d\n", err); 1559 goto ice_vsi_cfg_rss_exit; 1560 } 1561 1562 key = kzalloc(ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE, GFP_KERNEL); 1563 if (!key) { 1564 err = -ENOMEM; 1565 goto ice_vsi_cfg_rss_exit; 1566 } 1567 1568 if (vsi->rss_hkey_user) 1569 memcpy(key, vsi->rss_hkey_user, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE); 1570 else 1571 netdev_rss_key_fill((void *)key, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE); 1572 1573 err = ice_set_rss_key(vsi, key); 1574 if (err) 1575 dev_err(dev, "set_rss_key failed, error %d\n", err); 1576 1577 kfree(key); 1578ice_vsi_cfg_rss_exit: 1579 kfree(lut); 1580 return err; 1581} 1582 1583/** 1584 * ice_vsi_set_vf_rss_flow_fld - Sets VF VSI RSS input set for different flows 1585 * @vsi: VSI to be configured 1586 * 1587 * This function will only be called during the VF VSI setup. Upon successful 1588 * completion of package download, this function will configure default RSS 1589 * input sets for VF VSI. 1590 */ 1591static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi) 1592{ 1593 struct ice_pf *pf = vsi->back; 1594 struct device *dev; 1595 int status; 1596 1597 dev = ice_pf_to_dev(pf); 1598 if (ice_is_safe_mode(pf)) { 1599 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 1600 vsi->vsi_num); 1601 return; 1602 } 1603 1604 status = ice_add_avf_rss_cfg(&pf->hw, vsi->idx, ICE_DEFAULT_RSS_HENA); 1605 if (status) 1606 dev_dbg(dev, "ice_add_avf_rss_cfg failed for vsi = %d, error = %d\n", 1607 vsi->vsi_num, status); 1608} 1609 1610/** 1611 * ice_vsi_set_rss_flow_fld - Sets RSS input set for different flows 1612 * @vsi: VSI to be configured 1613 * 1614 * This function will only be called after successful download package call 1615 * during initialization of PF. Since the downloaded package will erase the 1616 * RSS section, this function will configure RSS input sets for different 1617 * flow types. The last profile added has the highest priority, therefore 2 1618 * tuple profiles (i.e. IPv4 src/dst) are added before 4 tuple profiles 1619 * (i.e. IPv4 src/dst TCP src/dst port). 1620 */ 1621static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) 1622{ 1623 u16 vsi_handle = vsi->idx, vsi_num = vsi->vsi_num; 1624 struct ice_pf *pf = vsi->back; 1625 struct ice_hw *hw = &pf->hw; 1626 struct device *dev; 1627 int status; 1628 1629 dev = ice_pf_to_dev(pf); 1630 if (ice_is_safe_mode(pf)) { 1631 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 1632 vsi_num); 1633 return; 1634 } 1635 /* configure RSS for IPv4 with input set IP src/dst */ 1636 status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4, 1637 ICE_FLOW_SEG_HDR_IPV4); 1638 if (status) 1639 dev_dbg(dev, "ice_add_rss_cfg failed for ipv4 flow, vsi = %d, error = %d\n", 1640 vsi_num, status); 1641 1642 /* configure RSS for IPv6 with input set IPv6 src/dst */ 1643 status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6, 1644 ICE_FLOW_SEG_HDR_IPV6); 1645 if (status) 1646 dev_dbg(dev, "ice_add_rss_cfg failed for ipv6 flow, vsi = %d, error = %d\n", 1647 vsi_num, status); 1648 1649 /* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */ 1650 status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV4, 1651 ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4); 1652 if (status) 1653 dev_dbg(dev, "ice_add_rss_cfg failed for tcp4 flow, vsi = %d, error = %d\n", 1654 vsi_num, status); 1655 1656 /* configure RSS for udp4 with input set IP src/dst, UDP src/dst */ 1657 status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV4, 1658 ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4); 1659 if (status) 1660 dev_dbg(dev, "ice_add_rss_cfg failed for udp4 flow, vsi = %d, error = %d\n", 1661 vsi_num, status); 1662 1663 /* configure RSS for sctp4 with input set IP src/dst */ 1664 status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4, 1665 ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4); 1666 if (status) 1667 dev_dbg(dev, "ice_add_rss_cfg failed for sctp4 flow, vsi = %d, error = %d\n", 1668 vsi_num, status); 1669 1670 /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ 1671 status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV6, 1672 ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6); 1673 if (status) 1674 dev_dbg(dev, "ice_add_rss_cfg failed for tcp6 flow, vsi = %d, error = %d\n", 1675 vsi_num, status); 1676 1677 /* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */ 1678 status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV6, 1679 ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6); 1680 if (status) 1681 dev_dbg(dev, "ice_add_rss_cfg failed for udp6 flow, vsi = %d, error = %d\n", 1682 vsi_num, status); 1683 1684 /* configure RSS for sctp6 with input set IPv6 src/dst */ 1685 status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6, 1686 ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6); 1687 if (status) 1688 dev_dbg(dev, "ice_add_rss_cfg failed for sctp6 flow, vsi = %d, error = %d\n", 1689 vsi_num, status); 1690 1691 status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_ESP_SPI, 1692 ICE_FLOW_SEG_HDR_ESP); 1693 if (status) 1694 dev_dbg(dev, "ice_add_rss_cfg failed for esp/spi flow, vsi = %d, error = %d\n", 1695 vsi_num, status); 1696} 1697 1698/** 1699 * ice_vsi_cfg_frame_size - setup max frame size and Rx buffer length 1700 * @vsi: VSI 1701 */ 1702static void ice_vsi_cfg_frame_size(struct ice_vsi *vsi) 1703{ 1704 if (!vsi->netdev || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags)) { 1705 vsi->max_frame = ICE_MAX_FRAME_LEGACY_RX; 1706 vsi->rx_buf_len = ICE_RXBUF_1664; 1707#if (PAGE_SIZE < 8192) 1708 } else if (!ICE_2K_TOO_SMALL_WITH_PADDING && 1709 (vsi->netdev->mtu <= ETH_DATA_LEN)) { 1710 vsi->max_frame = ICE_RXBUF_1536 - NET_IP_ALIGN; 1711 vsi->rx_buf_len = ICE_RXBUF_1536 - NET_IP_ALIGN; 1712#endif 1713 } else { 1714 vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX; 1715 vsi->rx_buf_len = ICE_RXBUF_3072; 1716 } 1717} 1718 1719/** 1720 * ice_pf_state_is_nominal - checks the PF for nominal state 1721 * @pf: pointer to PF to check 1722 * 1723 * Check the PF's state for a collection of bits that would indicate 1724 * the PF is in a state that would inhibit normal operation for 1725 * driver functionality. 1726 * 1727 * Returns true if PF is in a nominal state, false otherwise 1728 */ 1729bool ice_pf_state_is_nominal(struct ice_pf *pf) 1730{ 1731 DECLARE_BITMAP(check_bits, ICE_STATE_NBITS) = { 0 }; 1732 1733 if (!pf) 1734 return false; 1735 1736 bitmap_set(check_bits, 0, ICE_STATE_NOMINAL_CHECK_BITS); 1737 if (bitmap_intersects(pf->state, check_bits, ICE_STATE_NBITS)) 1738 return false; 1739 1740 return true; 1741} 1742 1743/** 1744 * ice_update_eth_stats - Update VSI-specific ethernet statistics counters 1745 * @vsi: the VSI to be updated 1746 */ 1747void ice_update_eth_stats(struct ice_vsi *vsi) 1748{ 1749 struct ice_eth_stats *prev_es, *cur_es; 1750 struct ice_hw *hw = &vsi->back->hw; 1751 struct ice_pf *pf = vsi->back; 1752 u16 vsi_num = vsi->vsi_num; /* HW absolute index of a VSI */ 1753 1754 prev_es = &vsi->eth_stats_prev; 1755 cur_es = &vsi->eth_stats; 1756 1757 if (ice_is_reset_in_progress(pf->state)) 1758 vsi->stat_offsets_loaded = false; 1759 1760 ice_stat_update40(hw, GLV_GORCL(vsi_num), vsi->stat_offsets_loaded, 1761 &prev_es->rx_bytes, &cur_es->rx_bytes); 1762 1763 ice_stat_update40(hw, GLV_UPRCL(vsi_num), vsi->stat_offsets_loaded, 1764 &prev_es->rx_unicast, &cur_es->rx_unicast); 1765 1766 ice_stat_update40(hw, GLV_MPRCL(vsi_num), vsi->stat_offsets_loaded, 1767 &prev_es->rx_multicast, &cur_es->rx_multicast); 1768 1769 ice_stat_update40(hw, GLV_BPRCL(vsi_num), vsi->stat_offsets_loaded, 1770 &prev_es->rx_broadcast, &cur_es->rx_broadcast); 1771 1772 ice_stat_update32(hw, GLV_RDPC(vsi_num), vsi->stat_offsets_loaded, 1773 &prev_es->rx_discards, &cur_es->rx_discards); 1774 1775 ice_stat_update40(hw, GLV_GOTCL(vsi_num), vsi->stat_offsets_loaded, 1776 &prev_es->tx_bytes, &cur_es->tx_bytes); 1777 1778 ice_stat_update40(hw, GLV_UPTCL(vsi_num), vsi->stat_offsets_loaded, 1779 &prev_es->tx_unicast, &cur_es->tx_unicast); 1780 1781 ice_stat_update40(hw, GLV_MPTCL(vsi_num), vsi->stat_offsets_loaded, 1782 &prev_es->tx_multicast, &cur_es->tx_multicast); 1783 1784 ice_stat_update40(hw, GLV_BPTCL(vsi_num), vsi->stat_offsets_loaded, 1785 &prev_es->tx_broadcast, &cur_es->tx_broadcast); 1786 1787 ice_stat_update32(hw, GLV_TEPC(vsi_num), vsi->stat_offsets_loaded, 1788 &prev_es->tx_errors, &cur_es->tx_errors); 1789 1790 vsi->stat_offsets_loaded = true; 1791} 1792 1793/** 1794 * ice_write_qrxflxp_cntxt - write/configure QRXFLXP_CNTXT register 1795 * @hw: HW pointer 1796 * @pf_q: index of the Rx queue in the PF's queue space 1797 * @rxdid: flexible descriptor RXDID 1798 * @prio: priority for the RXDID for this queue 1799 * @ena_ts: true to enable timestamp and false to disable timestamp 1800 */ 1801void 1802ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio, 1803 bool ena_ts) 1804{ 1805 int regval = rd32(hw, QRXFLXP_CNTXT(pf_q)); 1806 1807 /* clear any previous values */ 1808 regval &= ~(QRXFLXP_CNTXT_RXDID_IDX_M | 1809 QRXFLXP_CNTXT_RXDID_PRIO_M | 1810 QRXFLXP_CNTXT_TS_M); 1811 1812 regval |= (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) & 1813 QRXFLXP_CNTXT_RXDID_IDX_M; 1814 1815 regval |= (prio << QRXFLXP_CNTXT_RXDID_PRIO_S) & 1816 QRXFLXP_CNTXT_RXDID_PRIO_M; 1817 1818 if (ena_ts) 1819 /* Enable TimeSync on this queue */ 1820 regval |= QRXFLXP_CNTXT_TS_M; 1821 1822 wr32(hw, QRXFLXP_CNTXT(pf_q), regval); 1823} 1824 1825int ice_vsi_cfg_single_rxq(struct ice_vsi *vsi, u16 q_idx) 1826{ 1827 if (q_idx >= vsi->num_rxq) 1828 return -EINVAL; 1829 1830 return ice_vsi_cfg_rxq(vsi->rx_rings[q_idx]); 1831} 1832 1833int ice_vsi_cfg_single_txq(struct ice_vsi *vsi, struct ice_tx_ring **tx_rings, u16 q_idx) 1834{ 1835 struct ice_aqc_add_tx_qgrp *qg_buf; 1836 int err; 1837 1838 if (q_idx >= vsi->alloc_txq || !tx_rings || !tx_rings[q_idx]) 1839 return -EINVAL; 1840 1841 qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL); 1842 if (!qg_buf) 1843 return -ENOMEM; 1844 1845 qg_buf->num_txqs = 1; 1846 1847 err = ice_vsi_cfg_txq(vsi, tx_rings[q_idx], qg_buf); 1848 kfree(qg_buf); 1849 return err; 1850} 1851 1852/** 1853 * ice_vsi_cfg_rxqs - Configure the VSI for Rx 1854 * @vsi: the VSI being configured 1855 * 1856 * Return 0 on success and a negative value on error 1857 * Configure the Rx VSI for operation. 1858 */ 1859int ice_vsi_cfg_rxqs(struct ice_vsi *vsi) 1860{ 1861 u16 i; 1862 1863 if (vsi->type == ICE_VSI_VF) 1864 goto setup_rings; 1865 1866 ice_vsi_cfg_frame_size(vsi); 1867setup_rings: 1868 /* set up individual rings */ 1869 ice_for_each_rxq(vsi, i) { 1870 int err = ice_vsi_cfg_rxq(vsi->rx_rings[i]); 1871 1872 if (err) 1873 return err; 1874 } 1875 1876 return 0; 1877} 1878 1879/** 1880 * ice_vsi_cfg_txqs - Configure the VSI for Tx 1881 * @vsi: the VSI being configured 1882 * @rings: Tx ring array to be configured 1883 * @count: number of Tx ring array elements 1884 * 1885 * Return 0 on success and a negative value on error 1886 * Configure the Tx VSI for operation. 1887 */ 1888static int 1889ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_tx_ring **rings, u16 count) 1890{ 1891 struct ice_aqc_add_tx_qgrp *qg_buf; 1892 u16 q_idx = 0; 1893 int err = 0; 1894 1895 qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL); 1896 if (!qg_buf) 1897 return -ENOMEM; 1898 1899 qg_buf->num_txqs = 1; 1900 1901 for (q_idx = 0; q_idx < count; q_idx++) { 1902 err = ice_vsi_cfg_txq(vsi, rings[q_idx], qg_buf); 1903 if (err) 1904 goto err_cfg_txqs; 1905 } 1906 1907err_cfg_txqs: 1908 kfree(qg_buf); 1909 return err; 1910} 1911 1912/** 1913 * ice_vsi_cfg_lan_txqs - Configure the VSI for Tx 1914 * @vsi: the VSI being configured 1915 * 1916 * Return 0 on success and a negative value on error 1917 * Configure the Tx VSI for operation. 1918 */ 1919int ice_vsi_cfg_lan_txqs(struct ice_vsi *vsi) 1920{ 1921 return ice_vsi_cfg_txqs(vsi, vsi->tx_rings, vsi->num_txq); 1922} 1923 1924/** 1925 * ice_vsi_cfg_xdp_txqs - Configure Tx queues dedicated for XDP in given VSI 1926 * @vsi: the VSI being configured 1927 * 1928 * Return 0 on success and a negative value on error 1929 * Configure the Tx queues dedicated for XDP in given VSI for operation. 1930 */ 1931int ice_vsi_cfg_xdp_txqs(struct ice_vsi *vsi) 1932{ 1933 int ret; 1934 int i; 1935 1936 ret = ice_vsi_cfg_txqs(vsi, vsi->xdp_rings, vsi->num_xdp_txq); 1937 if (ret) 1938 return ret; 1939 1940 ice_for_each_rxq(vsi, i) 1941 ice_tx_xsk_pool(vsi, i); 1942 1943 return 0; 1944} 1945 1946/** 1947 * ice_intrl_usec_to_reg - convert interrupt rate limit to register value 1948 * @intrl: interrupt rate limit in usecs 1949 * @gran: interrupt rate limit granularity in usecs 1950 * 1951 * This function converts a decimal interrupt rate limit in usecs to the format 1952 * expected by firmware. 1953 */ 1954static u32 ice_intrl_usec_to_reg(u8 intrl, u8 gran) 1955{ 1956 u32 val = intrl / gran; 1957 1958 if (val) 1959 return val | GLINT_RATE_INTRL_ENA_M; 1960 return 0; 1961} 1962 1963/** 1964 * ice_write_intrl - write throttle rate limit to interrupt specific register 1965 * @q_vector: pointer to interrupt specific structure 1966 * @intrl: throttle rate limit in microseconds to write 1967 */ 1968void ice_write_intrl(struct ice_q_vector *q_vector, u8 intrl) 1969{ 1970 struct ice_hw *hw = &q_vector->vsi->back->hw; 1971 1972 wr32(hw, GLINT_RATE(q_vector->reg_idx), 1973 ice_intrl_usec_to_reg(intrl, ICE_INTRL_GRAN_ABOVE_25)); 1974} 1975 1976static struct ice_q_vector *ice_pull_qvec_from_rc(struct ice_ring_container *rc) 1977{ 1978 switch (rc->type) { 1979 case ICE_RX_CONTAINER: 1980 if (rc->rx_ring) 1981 return rc->rx_ring->q_vector; 1982 break; 1983 case ICE_TX_CONTAINER: 1984 if (rc->tx_ring) 1985 return rc->tx_ring->q_vector; 1986 break; 1987 default: 1988 break; 1989 } 1990 1991 return NULL; 1992} 1993 1994/** 1995 * __ice_write_itr - write throttle rate to register 1996 * @q_vector: pointer to interrupt data structure 1997 * @rc: pointer to ring container 1998 * @itr: throttle rate in microseconds to write 1999 */ 2000static void __ice_write_itr(struct ice_q_vector *q_vector, 2001 struct ice_ring_container *rc, u16 itr) 2002{ 2003 struct ice_hw *hw = &q_vector->vsi->back->hw; 2004 2005 wr32(hw, GLINT_ITR(rc->itr_idx, q_vector->reg_idx), 2006 ITR_REG_ALIGN(itr) >> ICE_ITR_GRAN_S); 2007} 2008 2009/** 2010 * ice_write_itr - write throttle rate to queue specific register 2011 * @rc: pointer to ring container 2012 * @itr: throttle rate in microseconds to write 2013 */ 2014void ice_write_itr(struct ice_ring_container *rc, u16 itr) 2015{ 2016 struct ice_q_vector *q_vector; 2017 2018 q_vector = ice_pull_qvec_from_rc(rc); 2019 if (!q_vector) 2020 return; 2021 2022 __ice_write_itr(q_vector, rc, itr); 2023} 2024 2025/** 2026 * ice_set_q_vector_intrl - set up interrupt rate limiting 2027 * @q_vector: the vector to be configured 2028 * 2029 * Interrupt rate limiting is local to the vector, not per-queue so we must 2030 * detect if either ring container has dynamic moderation enabled to decide 2031 * what to set the interrupt rate limit to via INTRL settings. In the case that 2032 * dynamic moderation is disabled on both, write the value with the cached 2033 * setting to make sure INTRL register matches the user visible value. 2034 */ 2035void ice_set_q_vector_intrl(struct ice_q_vector *q_vector) 2036{ 2037 if (ITR_IS_DYNAMIC(&q_vector->tx) || ITR_IS_DYNAMIC(&q_vector->rx)) { 2038 /* in the case of dynamic enabled, cap each vector to no more 2039 * than (4 us) 250,000 ints/sec, which allows low latency 2040 * but still less than 500,000 interrupts per second, which 2041 * reduces CPU a bit in the case of the lowest latency 2042 * setting. The 4 here is a value in microseconds. 2043 */ 2044 ice_write_intrl(q_vector, 4); 2045 } else { 2046 ice_write_intrl(q_vector, q_vector->intrl); 2047 } 2048} 2049 2050/** 2051 * ice_vsi_cfg_msix - MSIX mode Interrupt Config in the HW 2052 * @vsi: the VSI being configured 2053 * 2054 * This configures MSIX mode interrupts for the PF VSI, and should not be used 2055 * for the VF VSI. 2056 */ 2057void ice_vsi_cfg_msix(struct ice_vsi *vsi) 2058{ 2059 struct ice_pf *pf = vsi->back; 2060 struct ice_hw *hw = &pf->hw; 2061 u16 txq = 0, rxq = 0; 2062 int i, q; 2063 2064 ice_for_each_q_vector(vsi, i) { 2065 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 2066 u16 reg_idx = q_vector->reg_idx; 2067 2068 ice_cfg_itr(hw, q_vector); 2069 2070 /* Both Transmit Queue Interrupt Cause Control register 2071 * and Receive Queue Interrupt Cause control register 2072 * expects MSIX_INDX field to be the vector index 2073 * within the function space and not the absolute 2074 * vector index across PF or across device. 2075 * For SR-IOV VF VSIs queue vector index always starts 2076 * with 1 since first vector index(0) is used for OICR 2077 * in VF space. Since VMDq and other PF VSIs are within 2078 * the PF function space, use the vector index that is 2079 * tracked for this PF. 2080 */ 2081 for (q = 0; q < q_vector->num_ring_tx; q++) { 2082 ice_cfg_txq_interrupt(vsi, txq, reg_idx, 2083 q_vector->tx.itr_idx); 2084 txq++; 2085 } 2086 2087 for (q = 0; q < q_vector->num_ring_rx; q++) { 2088 ice_cfg_rxq_interrupt(vsi, rxq, reg_idx, 2089 q_vector->rx.itr_idx); 2090 rxq++; 2091 } 2092 } 2093} 2094 2095/** 2096 * ice_vsi_start_all_rx_rings - start/enable all of a VSI's Rx rings 2097 * @vsi: the VSI whose rings are to be enabled 2098 * 2099 * Returns 0 on success and a negative value on error 2100 */ 2101int ice_vsi_start_all_rx_rings(struct ice_vsi *vsi) 2102{ 2103 return ice_vsi_ctrl_all_rx_rings(vsi, true); 2104} 2105 2106/** 2107 * ice_vsi_stop_all_rx_rings - stop/disable all of a VSI's Rx rings 2108 * @vsi: the VSI whose rings are to be disabled 2109 * 2110 * Returns 0 on success and a negative value on error 2111 */ 2112int ice_vsi_stop_all_rx_rings(struct ice_vsi *vsi) 2113{ 2114 return ice_vsi_ctrl_all_rx_rings(vsi, false); 2115} 2116 2117/** 2118 * ice_vsi_stop_tx_rings - Disable Tx rings 2119 * @vsi: the VSI being configured 2120 * @rst_src: reset source 2121 * @rel_vmvf_num: Relative ID of VF/VM 2122 * @rings: Tx ring array to be stopped 2123 * @count: number of Tx ring array elements 2124 */ 2125static int 2126ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, 2127 u16 rel_vmvf_num, struct ice_tx_ring **rings, u16 count) 2128{ 2129 u16 q_idx; 2130 2131 if (vsi->num_txq > ICE_LAN_TXQ_MAX_QDIS) 2132 return -EINVAL; 2133 2134 for (q_idx = 0; q_idx < count; q_idx++) { 2135 struct ice_txq_meta txq_meta = { }; 2136 int status; 2137 2138 if (!rings || !rings[q_idx]) 2139 return -EINVAL; 2140 2141 ice_fill_txq_meta(vsi, rings[q_idx], &txq_meta); 2142 status = ice_vsi_stop_tx_ring(vsi, rst_src, rel_vmvf_num, 2143 rings[q_idx], &txq_meta); 2144 2145 if (status) 2146 return status; 2147 } 2148 2149 return 0; 2150} 2151 2152/** 2153 * ice_vsi_stop_lan_tx_rings - Disable LAN Tx rings 2154 * @vsi: the VSI being configured 2155 * @rst_src: reset source 2156 * @rel_vmvf_num: Relative ID of VF/VM 2157 */ 2158int 2159ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, 2160 u16 rel_vmvf_num) 2161{ 2162 return ice_vsi_stop_tx_rings(vsi, rst_src, rel_vmvf_num, vsi->tx_rings, vsi->num_txq); 2163} 2164 2165/** 2166 * ice_vsi_stop_xdp_tx_rings - Disable XDP Tx rings 2167 * @vsi: the VSI being configured 2168 */ 2169int ice_vsi_stop_xdp_tx_rings(struct ice_vsi *vsi) 2170{ 2171 return ice_vsi_stop_tx_rings(vsi, ICE_NO_RESET, 0, vsi->xdp_rings, vsi->num_xdp_txq); 2172} 2173 2174/** 2175 * ice_vsi_is_rx_queue_active 2176 * @vsi: the VSI being configured 2177 * 2178 * Return true if at least one queue is active. 2179 */ 2180bool ice_vsi_is_rx_queue_active(struct ice_vsi *vsi) 2181{ 2182 struct ice_pf *pf = vsi->back; 2183 struct ice_hw *hw = &pf->hw; 2184 int i; 2185 2186 ice_for_each_rxq(vsi, i) { 2187 u32 rx_reg; 2188 int pf_q; 2189 2190 pf_q = vsi->rxq_map[i]; 2191 rx_reg = rd32(hw, QRX_CTRL(pf_q)); 2192 if (rx_reg & QRX_CTRL_QENA_STAT_M) 2193 return true; 2194 } 2195 2196 return false; 2197} 2198 2199static void ice_vsi_set_tc_cfg(struct ice_vsi *vsi) 2200{ 2201 if (!test_bit(ICE_FLAG_DCB_ENA, vsi->back->flags)) { 2202 vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; 2203 vsi->tc_cfg.numtc = 1; 2204 return; 2205 } 2206 2207 /* set VSI TC information based on DCB config */ 2208 ice_vsi_set_dcb_tc_cfg(vsi); 2209} 2210 2211/** 2212 * ice_cfg_sw_lldp - Config switch rules for LLDP packet handling 2213 * @vsi: the VSI being configured 2214 * @tx: bool to determine Tx or Rx rule 2215 * @create: bool to determine create or remove Rule 2216 */ 2217void ice_cfg_sw_lldp(struct ice_vsi *vsi, bool tx, bool create) 2218{ 2219 int (*eth_fltr)(struct ice_vsi *v, u16 type, u16 flag, 2220 enum ice_sw_fwd_act_type act); 2221 struct ice_pf *pf = vsi->back; 2222 struct device *dev; 2223 int status; 2224 2225 dev = ice_pf_to_dev(pf); 2226 eth_fltr = create ? ice_fltr_add_eth : ice_fltr_remove_eth; 2227 2228 if (tx) { 2229 status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_TX, 2230 ICE_DROP_PACKET); 2231 } else { 2232 if (ice_fw_supports_lldp_fltr_ctrl(&pf->hw)) { 2233 status = ice_lldp_fltr_add_remove(&pf->hw, vsi->vsi_num, 2234 create); 2235 } else { 2236 status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_RX, 2237 ICE_FWD_TO_VSI); 2238 } 2239 } 2240 2241 if (status) 2242 dev_dbg(dev, "Fail %s %s LLDP rule on VSI %i error: %d\n", 2243 create ? "adding" : "removing", tx ? "TX" : "RX", 2244 vsi->vsi_num, status); 2245} 2246 2247/** 2248 * ice_set_agg_vsi - sets up scheduler aggregator node and move VSI into it 2249 * @vsi: pointer to the VSI 2250 * 2251 * This function will allocate new scheduler aggregator now if needed and will 2252 * move specified VSI into it. 2253 */ 2254static void ice_set_agg_vsi(struct ice_vsi *vsi) 2255{ 2256 struct device *dev = ice_pf_to_dev(vsi->back); 2257 struct ice_agg_node *agg_node_iter = NULL; 2258 u32 agg_id = ICE_INVALID_AGG_NODE_ID; 2259 struct ice_agg_node *agg_node = NULL; 2260 int node_offset, max_agg_nodes = 0; 2261 struct ice_port_info *port_info; 2262 struct ice_pf *pf = vsi->back; 2263 u32 agg_node_id_start = 0; 2264 int status; 2265 2266 /* create (as needed) scheduler aggregator node and move VSI into 2267 * corresponding aggregator node 2268 * - PF aggregator node to contains VSIs of type _PF and _CTRL 2269 * - VF aggregator nodes will contain VF VSI 2270 */ 2271 port_info = pf->hw.port_info; 2272 if (!port_info) 2273 return; 2274 2275 switch (vsi->type) { 2276 case ICE_VSI_CTRL: 2277 case ICE_VSI_CHNL: 2278 case ICE_VSI_LB: 2279 case ICE_VSI_PF: 2280 case ICE_VSI_SWITCHDEV_CTRL: 2281 max_agg_nodes = ICE_MAX_PF_AGG_NODES; 2282 agg_node_id_start = ICE_PF_AGG_NODE_ID_START; 2283 agg_node_iter = &pf->pf_agg_node[0]; 2284 break; 2285 case ICE_VSI_VF: 2286 /* user can create 'n' VFs on a given PF, but since max children 2287 * per aggregator node can be only 64. Following code handles 2288 * aggregator(s) for VF VSIs, either selects a agg_node which 2289 * was already created provided num_vsis < 64, otherwise 2290 * select next available node, which will be created 2291 */ 2292 max_agg_nodes = ICE_MAX_VF_AGG_NODES; 2293 agg_node_id_start = ICE_VF_AGG_NODE_ID_START; 2294 agg_node_iter = &pf->vf_agg_node[0]; 2295 break; 2296 default: 2297 /* other VSI type, handle later if needed */ 2298 dev_dbg(dev, "unexpected VSI type %s\n", 2299 ice_vsi_type_str(vsi->type)); 2300 return; 2301 } 2302 2303 /* find the appropriate aggregator node */ 2304 for (node_offset = 0; node_offset < max_agg_nodes; node_offset++) { 2305 /* see if we can find space in previously created 2306 * node if num_vsis < 64, otherwise skip 2307 */ 2308 if (agg_node_iter->num_vsis && 2309 agg_node_iter->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) { 2310 agg_node_iter++; 2311 continue; 2312 } 2313 2314 if (agg_node_iter->valid && 2315 agg_node_iter->agg_id != ICE_INVALID_AGG_NODE_ID) { 2316 agg_id = agg_node_iter->agg_id; 2317 agg_node = agg_node_iter; 2318 break; 2319 } 2320 2321 /* find unclaimed agg_id */ 2322 if (agg_node_iter->agg_id == ICE_INVALID_AGG_NODE_ID) { 2323 agg_id = node_offset + agg_node_id_start; 2324 agg_node = agg_node_iter; 2325 break; 2326 } 2327 /* move to next agg_node */ 2328 agg_node_iter++; 2329 } 2330 2331 if (!agg_node) 2332 return; 2333 2334 /* if selected aggregator node was not created, create it */ 2335 if (!agg_node->valid) { 2336 status = ice_cfg_agg(port_info, agg_id, ICE_AGG_TYPE_AGG, 2337 (u8)vsi->tc_cfg.ena_tc); 2338 if (status) { 2339 dev_err(dev, "unable to create aggregator node with agg_id %u\n", 2340 agg_id); 2341 return; 2342 } 2343 /* aggregator node is created, store the needed info */ 2344 agg_node->valid = true; 2345 agg_node->agg_id = agg_id; 2346 } 2347 2348 /* move VSI to corresponding aggregator node */ 2349 status = ice_move_vsi_to_agg(port_info, agg_id, vsi->idx, 2350 (u8)vsi->tc_cfg.ena_tc); 2351 if (status) { 2352 dev_err(dev, "unable to move VSI idx %u into aggregator %u node", 2353 vsi->idx, agg_id); 2354 return; 2355 } 2356 2357 /* keep active children count for aggregator node */ 2358 agg_node->num_vsis++; 2359 2360 /* cache the 'agg_id' in VSI, so that after reset - VSI will be moved 2361 * to aggregator node 2362 */ 2363 vsi->agg_node = agg_node; 2364 dev_dbg(dev, "successfully moved VSI idx %u tc_bitmap 0x%x) into aggregator node %d which has num_vsis %u\n", 2365 vsi->idx, vsi->tc_cfg.ena_tc, vsi->agg_node->agg_id, 2366 vsi->agg_node->num_vsis); 2367} 2368 2369static int ice_vsi_cfg_tc_lan(struct ice_pf *pf, struct ice_vsi *vsi) 2370{ 2371 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; 2372 struct device *dev = ice_pf_to_dev(pf); 2373 int ret, i; 2374 2375 /* configure VSI nodes based on number of queues and TC's */ 2376 ice_for_each_traffic_class(i) { 2377 if (!(vsi->tc_cfg.ena_tc & BIT(i))) 2378 continue; 2379 2380 if (vsi->type == ICE_VSI_CHNL) { 2381 if (!vsi->alloc_txq && vsi->num_txq) 2382 max_txqs[i] = vsi->num_txq; 2383 else 2384 max_txqs[i] = pf->num_lan_tx; 2385 } else { 2386 max_txqs[i] = vsi->alloc_txq; 2387 } 2388 2389 if (vsi->type == ICE_VSI_PF) 2390 max_txqs[i] += vsi->num_xdp_txq; 2391 } 2392 2393 dev_dbg(dev, "vsi->tc_cfg.ena_tc = %d\n", vsi->tc_cfg.ena_tc); 2394 ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, 2395 max_txqs); 2396 if (ret) { 2397 dev_err(dev, "VSI %d failed lan queue config, error %d\n", 2398 vsi->vsi_num, ret); 2399 return ret; 2400 } 2401 2402 return 0; 2403} 2404 2405/** 2406 * ice_vsi_cfg_def - configure default VSI based on the type 2407 * @vsi: pointer to VSI 2408 * @params: the parameters to configure this VSI with 2409 */ 2410static int 2411ice_vsi_cfg_def(struct ice_vsi *vsi, struct ice_vsi_cfg_params *params) 2412{ 2413 struct device *dev = ice_pf_to_dev(vsi->back); 2414 struct ice_pf *pf = vsi->back; 2415 int ret; 2416 2417 vsi->vsw = pf->first_sw; 2418 2419 ret = ice_vsi_alloc_def(vsi, params->ch); 2420 if (ret) 2421 return ret; 2422 2423 /* allocate memory for Tx/Rx ring stat pointers */ 2424 ret = ice_vsi_alloc_stat_arrays(vsi); 2425 if (ret) 2426 goto unroll_vsi_alloc; 2427 2428 ice_alloc_fd_res(vsi); 2429 2430 ret = ice_vsi_get_qs(vsi); 2431 if (ret) { 2432 dev_err(dev, "Failed to allocate queues. vsi->idx = %d\n", 2433 vsi->idx); 2434 goto unroll_vsi_alloc_stat; 2435 } 2436 2437 /* set RSS capabilities */ 2438 ice_vsi_set_rss_params(vsi); 2439 2440 /* set TC configuration */ 2441 ice_vsi_set_tc_cfg(vsi); 2442 2443 /* create the VSI */ 2444 ret = ice_vsi_init(vsi, params->flags); 2445 if (ret) 2446 goto unroll_get_qs; 2447 2448 ice_vsi_init_vlan_ops(vsi); 2449 2450 switch (vsi->type) { 2451 case ICE_VSI_CTRL: 2452 case ICE_VSI_SWITCHDEV_CTRL: 2453 case ICE_VSI_PF: 2454 ret = ice_vsi_alloc_q_vectors(vsi); 2455 if (ret) 2456 goto unroll_vsi_init; 2457 2458 ret = ice_vsi_alloc_rings(vsi); 2459 if (ret) 2460 goto unroll_vector_base; 2461 2462 ret = ice_vsi_alloc_ring_stats(vsi); 2463 if (ret) 2464 goto unroll_vector_base; 2465 2466 ice_vsi_map_rings_to_vectors(vsi); 2467 vsi->stat_offsets_loaded = false; 2468 2469 if (ice_is_xdp_ena_vsi(vsi)) { 2470 ret = ice_vsi_determine_xdp_res(vsi); 2471 if (ret) 2472 goto unroll_vector_base; 2473 ret = ice_prepare_xdp_rings(vsi, vsi->xdp_prog); 2474 if (ret) 2475 goto unroll_vector_base; 2476 } 2477 2478 /* ICE_VSI_CTRL does not need RSS so skip RSS processing */ 2479 if (vsi->type != ICE_VSI_CTRL) 2480 /* Do not exit if configuring RSS had an issue, at 2481 * least receive traffic on first queue. Hence no 2482 * need to capture return value 2483 */ 2484 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 2485 ice_vsi_cfg_rss_lut_key(vsi); 2486 ice_vsi_set_rss_flow_fld(vsi); 2487 } 2488 ice_init_arfs(vsi); 2489 break; 2490 case ICE_VSI_CHNL: 2491 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 2492 ice_vsi_cfg_rss_lut_key(vsi); 2493 ice_vsi_set_rss_flow_fld(vsi); 2494 } 2495 break; 2496 case ICE_VSI_VF: 2497 /* VF driver will take care of creating netdev for this type and 2498 * map queues to vectors through Virtchnl, PF driver only 2499 * creates a VSI and corresponding structures for bookkeeping 2500 * purpose 2501 */ 2502 ret = ice_vsi_alloc_q_vectors(vsi); 2503 if (ret) 2504 goto unroll_vsi_init; 2505 2506 ret = ice_vsi_alloc_rings(vsi); 2507 if (ret) 2508 goto unroll_alloc_q_vector; 2509 2510 ret = ice_vsi_alloc_ring_stats(vsi); 2511 if (ret) 2512 goto unroll_vector_base; 2513 2514 vsi->stat_offsets_loaded = false; 2515 2516 /* Do not exit if configuring RSS had an issue, at least 2517 * receive traffic on first queue. Hence no need to capture 2518 * return value 2519 */ 2520 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 2521 ice_vsi_cfg_rss_lut_key(vsi); 2522 ice_vsi_set_vf_rss_flow_fld(vsi); 2523 } 2524 break; 2525 case ICE_VSI_LB: 2526 ret = ice_vsi_alloc_rings(vsi); 2527 if (ret) 2528 goto unroll_vsi_init; 2529 2530 ret = ice_vsi_alloc_ring_stats(vsi); 2531 if (ret) 2532 goto unroll_vector_base; 2533 2534 break; 2535 default: 2536 /* clean up the resources and exit */ 2537 ret = -EINVAL; 2538 goto unroll_vsi_init; 2539 } 2540 2541 return 0; 2542 2543unroll_vector_base: 2544 /* reclaim SW interrupts back to the common pool */ 2545unroll_alloc_q_vector: 2546 ice_vsi_free_q_vectors(vsi); 2547unroll_vsi_init: 2548 ice_vsi_delete_from_hw(vsi); 2549unroll_get_qs: 2550 ice_vsi_put_qs(vsi); 2551unroll_vsi_alloc_stat: 2552 ice_vsi_free_stats(vsi); 2553unroll_vsi_alloc: 2554 ice_vsi_free_arrays(vsi); 2555 return ret; 2556} 2557 2558/** 2559 * ice_vsi_cfg - configure a previously allocated VSI 2560 * @vsi: pointer to VSI 2561 * @params: parameters used to configure this VSI 2562 */ 2563int ice_vsi_cfg(struct ice_vsi *vsi, struct ice_vsi_cfg_params *params) 2564{ 2565 struct ice_pf *pf = vsi->back; 2566 int ret; 2567 2568 if (WARN_ON(params->type == ICE_VSI_VF && !params->vf)) 2569 return -EINVAL; 2570 2571 vsi->type = params->type; 2572 vsi->port_info = params->pi; 2573 2574 /* For VSIs which don't have a connected VF, this will be NULL */ 2575 vsi->vf = params->vf; 2576 2577 ret = ice_vsi_cfg_def(vsi, params); 2578 if (ret) 2579 return ret; 2580 2581 ret = ice_vsi_cfg_tc_lan(vsi->back, vsi); 2582 if (ret) 2583 ice_vsi_decfg(vsi); 2584 2585 if (vsi->type == ICE_VSI_CTRL) { 2586 if (vsi->vf) { 2587 WARN_ON(vsi->vf->ctrl_vsi_idx != ICE_NO_VSI); 2588 vsi->vf->ctrl_vsi_idx = vsi->idx; 2589 } else { 2590 WARN_ON(pf->ctrl_vsi_idx != ICE_NO_VSI); 2591 pf->ctrl_vsi_idx = vsi->idx; 2592 } 2593 } 2594 2595 return ret; 2596} 2597 2598/** 2599 * ice_vsi_decfg - remove all VSI configuration 2600 * @vsi: pointer to VSI 2601 */ 2602void ice_vsi_decfg(struct ice_vsi *vsi) 2603{ 2604 struct ice_pf *pf = vsi->back; 2605 int err; 2606 2607 /* The Rx rule will only exist to remove if the LLDP FW 2608 * engine is currently stopped 2609 */ 2610 if (!ice_is_safe_mode(pf) && vsi->type == ICE_VSI_PF && 2611 !test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) 2612 ice_cfg_sw_lldp(vsi, false, false); 2613 2614 ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx); 2615 err = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx); 2616 if (err) 2617 dev_err(ice_pf_to_dev(pf), "Failed to remove RDMA scheduler config for VSI %u, err %d\n", 2618 vsi->vsi_num, err); 2619 2620 if (ice_is_xdp_ena_vsi(vsi)) 2621 /* return value check can be skipped here, it always returns 2622 * 0 if reset is in progress 2623 */ 2624 ice_destroy_xdp_rings(vsi); 2625 2626 ice_vsi_clear_rings(vsi); 2627 ice_vsi_free_q_vectors(vsi); 2628 ice_vsi_put_qs(vsi); 2629 ice_vsi_free_arrays(vsi); 2630 2631 /* SR-IOV determines needed MSIX resources all at once instead of per 2632 * VSI since when VFs are spawned we know how many VFs there are and how 2633 * many interrupts each VF needs. SR-IOV MSIX resources are also 2634 * cleared in the same manner. 2635 */ 2636 2637 if (vsi->type == ICE_VSI_VF && 2638 vsi->agg_node && vsi->agg_node->valid) 2639 vsi->agg_node->num_vsis--; 2640} 2641 2642/** 2643 * ice_vsi_setup - Set up a VSI by a given type 2644 * @pf: board private structure 2645 * @params: parameters to use when creating the VSI 2646 * 2647 * This allocates the sw VSI structure and its queue resources. 2648 * 2649 * Returns pointer to the successfully allocated and configured VSI sw struct on 2650 * success, NULL on failure. 2651 */ 2652struct ice_vsi * 2653ice_vsi_setup(struct ice_pf *pf, struct ice_vsi_cfg_params *params) 2654{ 2655 struct device *dev = ice_pf_to_dev(pf); 2656 struct ice_vsi *vsi; 2657 int ret; 2658 2659 /* ice_vsi_setup can only initialize a new VSI, and we must have 2660 * a port_info structure for it. 2661 */ 2662 if (WARN_ON(!(params->flags & ICE_VSI_FLAG_INIT)) || 2663 WARN_ON(!params->pi)) 2664 return NULL; 2665 2666 vsi = ice_vsi_alloc(pf); 2667 if (!vsi) { 2668 dev_err(dev, "could not allocate VSI\n"); 2669 return NULL; 2670 } 2671 2672 ret = ice_vsi_cfg(vsi, params); 2673 if (ret) 2674 goto err_vsi_cfg; 2675 2676 /* Add switch rule to drop all Tx Flow Control Frames, of look up 2677 * type ETHERTYPE from VSIs, and restrict malicious VF from sending 2678 * out PAUSE or PFC frames. If enabled, FW can still send FC frames. 2679 * The rule is added once for PF VSI in order to create appropriate 2680 * recipe, since VSI/VSI list is ignored with drop action... 2681 * Also add rules to handle LLDP Tx packets. Tx LLDP packets need to 2682 * be dropped so that VFs cannot send LLDP packets to reconfig DCB 2683 * settings in the HW. 2684 */ 2685 if (!ice_is_safe_mode(pf) && vsi->type == ICE_VSI_PF) { 2686 ice_fltr_add_eth(vsi, ETH_P_PAUSE, ICE_FLTR_TX, 2687 ICE_DROP_PACKET); 2688 ice_cfg_sw_lldp(vsi, true, true); 2689 } 2690 2691 if (!vsi->agg_node) 2692 ice_set_agg_vsi(vsi); 2693 2694 return vsi; 2695 2696err_vsi_cfg: 2697 ice_vsi_free(vsi); 2698 2699 return NULL; 2700} 2701 2702/** 2703 * ice_vsi_release_msix - Clear the queue to Interrupt mapping in HW 2704 * @vsi: the VSI being cleaned up 2705 */ 2706static void ice_vsi_release_msix(struct ice_vsi *vsi) 2707{ 2708 struct ice_pf *pf = vsi->back; 2709 struct ice_hw *hw = &pf->hw; 2710 u32 txq = 0; 2711 u32 rxq = 0; 2712 int i, q; 2713 2714 ice_for_each_q_vector(vsi, i) { 2715 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 2716 2717 ice_write_intrl(q_vector, 0); 2718 for (q = 0; q < q_vector->num_ring_tx; q++) { 2719 ice_write_itr(&q_vector->tx, 0); 2720 wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), 0); 2721 if (ice_is_xdp_ena_vsi(vsi)) { 2722 u32 xdp_txq = txq + vsi->num_xdp_txq; 2723 2724 wr32(hw, QINT_TQCTL(vsi->txq_map[xdp_txq]), 0); 2725 } 2726 txq++; 2727 } 2728 2729 for (q = 0; q < q_vector->num_ring_rx; q++) { 2730 ice_write_itr(&q_vector->rx, 0); 2731 wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), 0); 2732 rxq++; 2733 } 2734 } 2735 2736 ice_flush(hw); 2737} 2738 2739/** 2740 * ice_vsi_free_irq - Free the IRQ association with the OS 2741 * @vsi: the VSI being configured 2742 */ 2743void ice_vsi_free_irq(struct ice_vsi *vsi) 2744{ 2745 struct ice_pf *pf = vsi->back; 2746 int i; 2747 2748 if (!vsi->q_vectors || !vsi->irqs_ready) 2749 return; 2750 2751 ice_vsi_release_msix(vsi); 2752 if (vsi->type == ICE_VSI_VF) 2753 return; 2754 2755 vsi->irqs_ready = false; 2756 ice_free_cpu_rx_rmap(vsi); 2757 2758 ice_for_each_q_vector(vsi, i) { 2759 int irq_num; 2760 2761 irq_num = vsi->q_vectors[i]->irq.virq; 2762 2763 /* free only the irqs that were actually requested */ 2764 if (!vsi->q_vectors[i] || 2765 !(vsi->q_vectors[i]->num_ring_tx || 2766 vsi->q_vectors[i]->num_ring_rx)) 2767 continue; 2768 2769 /* clear the affinity notifier in the IRQ descriptor */ 2770 if (!IS_ENABLED(CONFIG_RFS_ACCEL)) 2771 irq_set_affinity_notifier(irq_num, NULL); 2772 2773 /* clear the affinity_mask in the IRQ descriptor */ 2774 irq_set_affinity_hint(irq_num, NULL); 2775 synchronize_irq(irq_num); 2776 devm_free_irq(ice_pf_to_dev(pf), irq_num, vsi->q_vectors[i]); 2777 } 2778} 2779 2780/** 2781 * ice_vsi_free_tx_rings - Free Tx resources for VSI queues 2782 * @vsi: the VSI having resources freed 2783 */ 2784void ice_vsi_free_tx_rings(struct ice_vsi *vsi) 2785{ 2786 int i; 2787 2788 if (!vsi->tx_rings) 2789 return; 2790 2791 ice_for_each_txq(vsi, i) 2792 if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) 2793 ice_free_tx_ring(vsi->tx_rings[i]); 2794} 2795 2796/** 2797 * ice_vsi_free_rx_rings - Free Rx resources for VSI queues 2798 * @vsi: the VSI having resources freed 2799 */ 2800void ice_vsi_free_rx_rings(struct ice_vsi *vsi) 2801{ 2802 int i; 2803 2804 if (!vsi->rx_rings) 2805 return; 2806 2807 ice_for_each_rxq(vsi, i) 2808 if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc) 2809 ice_free_rx_ring(vsi->rx_rings[i]); 2810} 2811 2812/** 2813 * ice_vsi_close - Shut down a VSI 2814 * @vsi: the VSI being shut down 2815 */ 2816void ice_vsi_close(struct ice_vsi *vsi) 2817{ 2818 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) 2819 ice_down(vsi); 2820 2821 ice_vsi_free_irq(vsi); 2822 ice_vsi_free_tx_rings(vsi); 2823 ice_vsi_free_rx_rings(vsi); 2824} 2825 2826/** 2827 * ice_ena_vsi - resume a VSI 2828 * @vsi: the VSI being resume 2829 * @locked: is the rtnl_lock already held 2830 */ 2831int ice_ena_vsi(struct ice_vsi *vsi, bool locked) 2832{ 2833 int err = 0; 2834 2835 if (!test_bit(ICE_VSI_NEEDS_RESTART, vsi->state)) 2836 return 0; 2837 2838 clear_bit(ICE_VSI_NEEDS_RESTART, vsi->state); 2839 2840 if (vsi->netdev && vsi->type == ICE_VSI_PF) { 2841 if (netif_running(vsi->netdev)) { 2842 if (!locked) 2843 rtnl_lock(); 2844 2845 err = ice_open_internal(vsi->netdev); 2846 2847 if (!locked) 2848 rtnl_unlock(); 2849 } 2850 } else if (vsi->type == ICE_VSI_CTRL) { 2851 err = ice_vsi_open_ctrl(vsi); 2852 } 2853 2854 return err; 2855} 2856 2857/** 2858 * ice_dis_vsi - pause a VSI 2859 * @vsi: the VSI being paused 2860 * @locked: is the rtnl_lock already held 2861 */ 2862void ice_dis_vsi(struct ice_vsi *vsi, bool locked) 2863{ 2864 if (test_bit(ICE_VSI_DOWN, vsi->state)) 2865 return; 2866 2867 set_bit(ICE_VSI_NEEDS_RESTART, vsi->state); 2868 2869 if (vsi->type == ICE_VSI_PF && vsi->netdev) { 2870 if (netif_running(vsi->netdev)) { 2871 if (!locked) 2872 rtnl_lock(); 2873 2874 ice_vsi_close(vsi); 2875 2876 if (!locked) 2877 rtnl_unlock(); 2878 } else { 2879 ice_vsi_close(vsi); 2880 } 2881 } else if (vsi->type == ICE_VSI_CTRL || 2882 vsi->type == ICE_VSI_SWITCHDEV_CTRL) { 2883 ice_vsi_close(vsi); 2884 } 2885} 2886 2887/** 2888 * ice_vsi_dis_irq - Mask off queue interrupt generation on the VSI 2889 * @vsi: the VSI being un-configured 2890 */ 2891void ice_vsi_dis_irq(struct ice_vsi *vsi) 2892{ 2893 struct ice_pf *pf = vsi->back; 2894 struct ice_hw *hw = &pf->hw; 2895 u32 val; 2896 int i; 2897 2898 /* disable interrupt causation from each queue */ 2899 if (vsi->tx_rings) { 2900 ice_for_each_txq(vsi, i) { 2901 if (vsi->tx_rings[i]) { 2902 u16 reg; 2903 2904 reg = vsi->tx_rings[i]->reg_idx; 2905 val = rd32(hw, QINT_TQCTL(reg)); 2906 val &= ~QINT_TQCTL_CAUSE_ENA_M; 2907 wr32(hw, QINT_TQCTL(reg), val); 2908 } 2909 } 2910 } 2911 2912 if (vsi->rx_rings) { 2913 ice_for_each_rxq(vsi, i) { 2914 if (vsi->rx_rings[i]) { 2915 u16 reg; 2916 2917 reg = vsi->rx_rings[i]->reg_idx; 2918 val = rd32(hw, QINT_RQCTL(reg)); 2919 val &= ~QINT_RQCTL_CAUSE_ENA_M; 2920 wr32(hw, QINT_RQCTL(reg), val); 2921 } 2922 } 2923 } 2924 2925 /* disable each interrupt */ 2926 ice_for_each_q_vector(vsi, i) { 2927 if (!vsi->q_vectors[i]) 2928 continue; 2929 wr32(hw, GLINT_DYN_CTL(vsi->q_vectors[i]->reg_idx), 0); 2930 } 2931 2932 ice_flush(hw); 2933 2934 /* don't call synchronize_irq() for VF's from the host */ 2935 if (vsi->type == ICE_VSI_VF) 2936 return; 2937 2938 ice_for_each_q_vector(vsi, i) 2939 synchronize_irq(vsi->q_vectors[i]->irq.virq); 2940} 2941 2942/** 2943 * ice_vsi_release - Delete a VSI and free its resources 2944 * @vsi: the VSI being removed 2945 * 2946 * Returns 0 on success or < 0 on error 2947 */ 2948int ice_vsi_release(struct ice_vsi *vsi) 2949{ 2950 struct ice_pf *pf; 2951 2952 if (!vsi->back) 2953 return -ENODEV; 2954 pf = vsi->back; 2955 2956 if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) 2957 ice_rss_clean(vsi); 2958 2959 ice_vsi_close(vsi); 2960 ice_vsi_decfg(vsi); 2961 2962 /* retain SW VSI data structure since it is needed to unregister and 2963 * free VSI netdev when PF is not in reset recovery pending state,\ 2964 * for ex: during rmmod. 2965 */ 2966 if (!ice_is_reset_in_progress(pf->state)) 2967 ice_vsi_delete(vsi); 2968 2969 return 0; 2970} 2971 2972/** 2973 * ice_vsi_rebuild_get_coalesce - get coalesce from all q_vectors 2974 * @vsi: VSI connected with q_vectors 2975 * @coalesce: array of struct with stored coalesce 2976 * 2977 * Returns array size. 2978 */ 2979static int 2980ice_vsi_rebuild_get_coalesce(struct ice_vsi *vsi, 2981 struct ice_coalesce_stored *coalesce) 2982{ 2983 int i; 2984 2985 ice_for_each_q_vector(vsi, i) { 2986 struct ice_q_vector *q_vector = vsi->q_vectors[i]; 2987 2988 coalesce[i].itr_tx = q_vector->tx.itr_settings; 2989 coalesce[i].itr_rx = q_vector->rx.itr_settings; 2990 coalesce[i].intrl = q_vector->intrl; 2991 2992 if (i < vsi->num_txq) 2993 coalesce[i].tx_valid = true; 2994 if (i < vsi->num_rxq) 2995 coalesce[i].rx_valid = true; 2996 } 2997 2998 return vsi->num_q_vectors; 2999} 3000 3001/** 3002 * ice_vsi_rebuild_set_coalesce - set coalesce from earlier saved arrays 3003 * @vsi: VSI connected with q_vectors 3004 * @coalesce: pointer to array of struct with stored coalesce 3005 * @size: size of coalesce array 3006 * 3007 * Before this function, ice_vsi_rebuild_get_coalesce should be called to save 3008 * ITR params in arrays. If size is 0 or coalesce wasn't stored set coalesce 3009 * to default value. 3010 */ 3011static void 3012ice_vsi_rebuild_set_coalesce(struct ice_vsi *vsi, 3013 struct ice_coalesce_stored *coalesce, int size) 3014{ 3015 struct ice_ring_container *rc; 3016 int i; 3017 3018 if ((size && !coalesce) || !vsi) 3019 return; 3020 3021 /* There are a couple of cases that have to be handled here: 3022 * 1. The case where the number of queue vectors stays the same, but 3023 * the number of Tx or Rx rings changes (the first for loop) 3024 * 2. The case where the number of queue vectors increased (the 3025 * second for loop) 3026 */ 3027 for (i = 0; i < size && i < vsi->num_q_vectors; i++) { 3028 /* There are 2 cases to handle here and they are the same for 3029 * both Tx and Rx: 3030 * if the entry was valid previously (coalesce[i].[tr]x_valid 3031 * and the loop variable is less than the number of rings 3032 * allocated, then write the previous values 3033 * 3034 * if the entry was not valid previously, but the number of 3035 * rings is less than are allocated (this means the number of 3036 * rings increased from previously), then write out the 3037 * values in the first element 3038 * 3039 * Also, always write the ITR, even if in ITR_IS_DYNAMIC 3040 * as there is no harm because the dynamic algorithm 3041 * will just overwrite. 3042 */ 3043 if (i < vsi->alloc_rxq && coalesce[i].rx_valid) { 3044 rc = &vsi->q_vectors[i]->rx; 3045 rc->itr_settings = coalesce[i].itr_rx; 3046 ice_write_itr(rc, rc->itr_setting); 3047 } else if (i < vsi->alloc_rxq) { 3048 rc = &vsi->q_vectors[i]->rx; 3049 rc->itr_settings = coalesce[0].itr_rx; 3050 ice_write_itr(rc, rc->itr_setting); 3051 } 3052 3053 if (i < vsi->alloc_txq && coalesce[i].tx_valid) { 3054 rc = &vsi->q_vectors[i]->tx; 3055 rc->itr_settings = coalesce[i].itr_tx; 3056 ice_write_itr(rc, rc->itr_setting); 3057 } else if (i < vsi->alloc_txq) { 3058 rc = &vsi->q_vectors[i]->tx; 3059 rc->itr_settings = coalesce[0].itr_tx; 3060 ice_write_itr(rc, rc->itr_setting); 3061 } 3062 3063 vsi->q_vectors[i]->intrl = coalesce[i].intrl; 3064 ice_set_q_vector_intrl(vsi->q_vectors[i]); 3065 } 3066 3067 /* the number of queue vectors increased so write whatever is in 3068 * the first element 3069 */ 3070 for (; i < vsi->num_q_vectors; i++) { 3071 /* transmit */ 3072 rc = &vsi->q_vectors[i]->tx; 3073 rc->itr_settings = coalesce[0].itr_tx; 3074 ice_write_itr(rc, rc->itr_setting); 3075 3076 /* receive */ 3077 rc = &vsi->q_vectors[i]->rx; 3078 rc->itr_settings = coalesce[0].itr_rx; 3079 ice_write_itr(rc, rc->itr_setting); 3080 3081 vsi->q_vectors[i]->intrl = coalesce[0].intrl; 3082 ice_set_q_vector_intrl(vsi->q_vectors[i]); 3083 } 3084} 3085 3086/** 3087 * ice_vsi_realloc_stat_arrays - Frees unused stat structures 3088 * @vsi: VSI pointer 3089 * @prev_txq: Number of Tx rings before ring reallocation 3090 * @prev_rxq: Number of Rx rings before ring reallocation 3091 */ 3092static void 3093ice_vsi_realloc_stat_arrays(struct ice_vsi *vsi, int prev_txq, int prev_rxq) 3094{ 3095 struct ice_vsi_stats *vsi_stat; 3096 struct ice_pf *pf = vsi->back; 3097 int i; 3098 3099 if (!prev_txq || !prev_rxq) 3100 return; 3101 if (vsi->type == ICE_VSI_CHNL) 3102 return; 3103 3104 vsi_stat = pf->vsi_stats[vsi->idx]; 3105 3106 if (vsi->num_txq < prev_txq) { 3107 for (i = vsi->num_txq; i < prev_txq; i++) { 3108 if (vsi_stat->tx_ring_stats[i]) { 3109 kfree_rcu(vsi_stat->tx_ring_stats[i], rcu); 3110 WRITE_ONCE(vsi_stat->tx_ring_stats[i], NULL); 3111 } 3112 } 3113 } 3114 3115 if (vsi->num_rxq < prev_rxq) { 3116 for (i = vsi->num_rxq; i < prev_rxq; i++) { 3117 if (vsi_stat->rx_ring_stats[i]) { 3118 kfree_rcu(vsi_stat->rx_ring_stats[i], rcu); 3119 WRITE_ONCE(vsi_stat->rx_ring_stats[i], NULL); 3120 } 3121 } 3122 } 3123} 3124 3125/** 3126 * ice_vsi_rebuild - Rebuild VSI after reset 3127 * @vsi: VSI to be rebuild 3128 * @vsi_flags: flags used for VSI rebuild flow 3129 * 3130 * Set vsi_flags to ICE_VSI_FLAG_INIT to initialize a new VSI, or 3131 * ICE_VSI_FLAG_NO_INIT to rebuild an existing VSI in hardware. 3132 * 3133 * Returns 0 on success and negative value on failure 3134 */ 3135int ice_vsi_rebuild(struct ice_vsi *vsi, u32 vsi_flags) 3136{ 3137 struct ice_vsi_cfg_params params = {}; 3138 struct ice_coalesce_stored *coalesce; 3139 int ret, prev_txq, prev_rxq; 3140 int prev_num_q_vectors = 0; 3141 struct ice_pf *pf; 3142 3143 if (!vsi) 3144 return -EINVAL; 3145 3146 params = ice_vsi_to_params(vsi); 3147 params.flags = vsi_flags; 3148 3149 pf = vsi->back; 3150 if (WARN_ON(vsi->type == ICE_VSI_VF && !vsi->vf)) 3151 return -EINVAL; 3152 3153 coalesce = kcalloc(vsi->num_q_vectors, 3154 sizeof(struct ice_coalesce_stored), GFP_KERNEL); 3155 if (!coalesce) 3156 return -ENOMEM; 3157 3158 prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi, coalesce); 3159 3160 prev_txq = vsi->num_txq; 3161 prev_rxq = vsi->num_rxq; 3162 3163 ice_vsi_decfg(vsi); 3164 ret = ice_vsi_cfg_def(vsi, ¶ms); 3165 if (ret) 3166 goto err_vsi_cfg; 3167 3168 ret = ice_vsi_cfg_tc_lan(pf, vsi); 3169 if (ret) { 3170 if (vsi_flags & ICE_VSI_FLAG_INIT) { 3171 ret = -EIO; 3172 goto err_vsi_cfg_tc_lan; 3173 } 3174 3175 kfree(coalesce); 3176 return ice_schedule_reset(pf, ICE_RESET_PFR); 3177 } 3178 3179 ice_vsi_realloc_stat_arrays(vsi, prev_txq, prev_rxq); 3180 3181 ice_vsi_rebuild_set_coalesce(vsi, coalesce, prev_num_q_vectors); 3182 kfree(coalesce); 3183 3184 return 0; 3185 3186err_vsi_cfg_tc_lan: 3187 ice_vsi_decfg(vsi); 3188err_vsi_cfg: 3189 kfree(coalesce); 3190 return ret; 3191} 3192 3193/** 3194 * ice_is_reset_in_progress - check for a reset in progress 3195 * @state: PF state field 3196 */ 3197bool ice_is_reset_in_progress(unsigned long *state) 3198{ 3199 return test_bit(ICE_RESET_OICR_RECV, state) || 3200 test_bit(ICE_PFR_REQ, state) || 3201 test_bit(ICE_CORER_REQ, state) || 3202 test_bit(ICE_GLOBR_REQ, state); 3203} 3204 3205/** 3206 * ice_wait_for_reset - Wait for driver to finish reset and rebuild 3207 * @pf: pointer to the PF structure 3208 * @timeout: length of time to wait, in jiffies 3209 * 3210 * Wait (sleep) for a short time until the driver finishes cleaning up from 3211 * a device reset. The caller must be able to sleep. Use this to delay 3212 * operations that could fail while the driver is cleaning up after a device 3213 * reset. 3214 * 3215 * Returns 0 on success, -EBUSY if the reset is not finished within the 3216 * timeout, and -ERESTARTSYS if the thread was interrupted. 3217 */ 3218int ice_wait_for_reset(struct ice_pf *pf, unsigned long timeout) 3219{ 3220 long ret; 3221 3222 ret = wait_event_interruptible_timeout(pf->reset_wait_queue, 3223 !ice_is_reset_in_progress(pf->state), 3224 timeout); 3225 if (ret < 0) 3226 return ret; 3227 else if (!ret) 3228 return -EBUSY; 3229 else 3230 return 0; 3231} 3232 3233/** 3234 * ice_vsi_update_q_map - update our copy of the VSI info with new queue map 3235 * @vsi: VSI being configured 3236 * @ctx: the context buffer returned from AQ VSI update command 3237 */ 3238static void ice_vsi_update_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctx) 3239{ 3240 vsi->info.mapping_flags = ctx->info.mapping_flags; 3241 memcpy(&vsi->info.q_mapping, &ctx->info.q_mapping, 3242 sizeof(vsi->info.q_mapping)); 3243 memcpy(&vsi->info.tc_mapping, ctx->info.tc_mapping, 3244 sizeof(vsi->info.tc_mapping)); 3245} 3246 3247/** 3248 * ice_vsi_cfg_netdev_tc - Setup the netdev TC configuration 3249 * @vsi: the VSI being configured 3250 * @ena_tc: TC map to be enabled 3251 */ 3252void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc) 3253{ 3254 struct net_device *netdev = vsi->netdev; 3255 struct ice_pf *pf = vsi->back; 3256 int numtc = vsi->tc_cfg.numtc; 3257 struct ice_dcbx_cfg *dcbcfg; 3258 u8 netdev_tc; 3259 int i; 3260 3261 if (!netdev) 3262 return; 3263 3264 /* CHNL VSI doesn't have it's own netdev, hence, no netdev_tc */ 3265 if (vsi->type == ICE_VSI_CHNL) 3266 return; 3267 3268 if (!ena_tc) { 3269 netdev_reset_tc(netdev); 3270 return; 3271 } 3272 3273 if (vsi->type == ICE_VSI_PF && ice_is_adq_active(pf)) 3274 numtc = vsi->all_numtc; 3275 3276 if (netdev_set_num_tc(netdev, numtc)) 3277 return; 3278 3279 dcbcfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg; 3280 3281 ice_for_each_traffic_class(i) 3282 if (vsi->tc_cfg.ena_tc & BIT(i)) 3283 netdev_set_tc_queue(netdev, 3284 vsi->tc_cfg.tc_info[i].netdev_tc, 3285 vsi->tc_cfg.tc_info[i].qcount_tx, 3286 vsi->tc_cfg.tc_info[i].qoffset); 3287 /* setup TC queue map for CHNL TCs */ 3288 ice_for_each_chnl_tc(i) { 3289 if (!(vsi->all_enatc & BIT(i))) 3290 break; 3291 if (!vsi->mqprio_qopt.qopt.count[i]) 3292 break; 3293 netdev_set_tc_queue(netdev, i, 3294 vsi->mqprio_qopt.qopt.count[i], 3295 vsi->mqprio_qopt.qopt.offset[i]); 3296 } 3297 3298 if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3299 return; 3300 3301 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 3302 u8 ets_tc = dcbcfg->etscfg.prio_table[i]; 3303 3304 /* Get the mapped netdev TC# for the UP */ 3305 netdev_tc = vsi->tc_cfg.tc_info[ets_tc].netdev_tc; 3306 netdev_set_prio_tc_map(netdev, i, netdev_tc); 3307 } 3308} 3309 3310/** 3311 * ice_vsi_setup_q_map_mqprio - Prepares mqprio based tc_config 3312 * @vsi: the VSI being configured, 3313 * @ctxt: VSI context structure 3314 * @ena_tc: number of traffic classes to enable 3315 * 3316 * Prepares VSI tc_config to have queue configurations based on MQPRIO options. 3317 */ 3318static int 3319ice_vsi_setup_q_map_mqprio(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt, 3320 u8 ena_tc) 3321{ 3322 u16 pow, offset = 0, qcount_tx = 0, qcount_rx = 0, qmap; 3323 u16 tc0_offset = vsi->mqprio_qopt.qopt.offset[0]; 3324 int tc0_qcount = vsi->mqprio_qopt.qopt.count[0]; 3325 u16 new_txq, new_rxq; 3326 u8 netdev_tc = 0; 3327 int i; 3328 3329 vsi->tc_cfg.ena_tc = ena_tc ? ena_tc : 1; 3330 3331 pow = order_base_2(tc0_qcount); 3332 qmap = ((tc0_offset << ICE_AQ_VSI_TC_Q_OFFSET_S) & 3333 ICE_AQ_VSI_TC_Q_OFFSET_M) | 3334 ((pow << ICE_AQ_VSI_TC_Q_NUM_S) & ICE_AQ_VSI_TC_Q_NUM_M); 3335 3336 ice_for_each_traffic_class(i) { 3337 if (!(vsi->tc_cfg.ena_tc & BIT(i))) { 3338 /* TC is not enabled */ 3339 vsi->tc_cfg.tc_info[i].qoffset = 0; 3340 vsi->tc_cfg.tc_info[i].qcount_rx = 1; 3341 vsi->tc_cfg.tc_info[i].qcount_tx = 1; 3342 vsi->tc_cfg.tc_info[i].netdev_tc = 0; 3343 ctxt->info.tc_mapping[i] = 0; 3344 continue; 3345 } 3346 3347 offset = vsi->mqprio_qopt.qopt.offset[i]; 3348 qcount_rx = vsi->mqprio_qopt.qopt.count[i]; 3349 qcount_tx = vsi->mqprio_qopt.qopt.count[i]; 3350 vsi->tc_cfg.tc_info[i].qoffset = offset; 3351 vsi->tc_cfg.tc_info[i].qcount_rx = qcount_rx; 3352 vsi->tc_cfg.tc_info[i].qcount_tx = qcount_tx; 3353 vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++; 3354 } 3355 3356 if (vsi->all_numtc && vsi->all_numtc != vsi->tc_cfg.numtc) { 3357 ice_for_each_chnl_tc(i) { 3358 if (!(vsi->all_enatc & BIT(i))) 3359 continue; 3360 offset = vsi->mqprio_qopt.qopt.offset[i]; 3361 qcount_rx = vsi->mqprio_qopt.qopt.count[i]; 3362 qcount_tx = vsi->mqprio_qopt.qopt.count[i]; 3363 } 3364 } 3365 3366 new_txq = offset + qcount_tx; 3367 if (new_txq > vsi->alloc_txq) { 3368 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Tx queues (%u), than were allocated (%u)!\n", 3369 new_txq, vsi->alloc_txq); 3370 return -EINVAL; 3371 } 3372 3373 new_rxq = offset + qcount_rx; 3374 if (new_rxq > vsi->alloc_rxq) { 3375 dev_err(ice_pf_to_dev(vsi->back), "Trying to use more Rx queues (%u), than were allocated (%u)!\n", 3376 new_rxq, vsi->alloc_rxq); 3377 return -EINVAL; 3378 } 3379 3380 /* Set actual Tx/Rx queue pairs */ 3381 vsi->num_txq = new_txq; 3382 vsi->num_rxq = new_rxq; 3383 3384 /* Setup queue TC[0].qmap for given VSI context */ 3385 ctxt->info.tc_mapping[0] = cpu_to_le16(qmap); 3386 ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]); 3387 ctxt->info.q_mapping[1] = cpu_to_le16(tc0_qcount); 3388 3389 /* Find queue count available for channel VSIs and starting offset 3390 * for channel VSIs 3391 */ 3392 if (tc0_qcount && tc0_qcount < vsi->num_rxq) { 3393 vsi->cnt_q_avail = vsi->num_rxq - tc0_qcount; 3394 vsi->next_base_q = tc0_qcount; 3395 } 3396 dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_txq = %d\n", vsi->num_txq); 3397 dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_rxq = %d\n", vsi->num_rxq); 3398 dev_dbg(ice_pf_to_dev(vsi->back), "all_numtc %u, all_enatc: 0x%04x, tc_cfg.numtc %u\n", 3399 vsi->all_numtc, vsi->all_enatc, vsi->tc_cfg.numtc); 3400 3401 return 0; 3402} 3403 3404/** 3405 * ice_vsi_cfg_tc - Configure VSI Tx Sched for given TC map 3406 * @vsi: VSI to be configured 3407 * @ena_tc: TC bitmap 3408 * 3409 * VSI queues expected to be quiesced before calling this function 3410 */ 3411int ice_vsi_cfg_tc(struct ice_vsi *vsi, u8 ena_tc) 3412{ 3413 u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; 3414 struct ice_pf *pf = vsi->back; 3415 struct ice_tc_cfg old_tc_cfg; 3416 struct ice_vsi_ctx *ctx; 3417 struct device *dev; 3418 int i, ret = 0; 3419 u8 num_tc = 0; 3420 3421 dev = ice_pf_to_dev(pf); 3422 if (vsi->tc_cfg.ena_tc == ena_tc && 3423 vsi->mqprio_qopt.mode != TC_MQPRIO_MODE_CHANNEL) 3424 return 0; 3425 3426 ice_for_each_traffic_class(i) { 3427 /* build bitmap of enabled TCs */ 3428 if (ena_tc & BIT(i)) 3429 num_tc++; 3430 /* populate max_txqs per TC */ 3431 max_txqs[i] = vsi->alloc_txq; 3432 /* Update max_txqs if it is CHNL VSI, because alloc_t[r]xq are 3433 * zero for CHNL VSI, hence use num_txq instead as max_txqs 3434 */ 3435 if (vsi->type == ICE_VSI_CHNL && 3436 test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3437 max_txqs[i] = vsi->num_txq; 3438 } 3439 3440 memcpy(&old_tc_cfg, &vsi->tc_cfg, sizeof(old_tc_cfg)); 3441 vsi->tc_cfg.ena_tc = ena_tc; 3442 vsi->tc_cfg.numtc = num_tc; 3443 3444 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 3445 if (!ctx) 3446 return -ENOMEM; 3447 3448 ctx->vf_num = 0; 3449 ctx->info = vsi->info; 3450 3451 if (vsi->type == ICE_VSI_PF && 3452 test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3453 ret = ice_vsi_setup_q_map_mqprio(vsi, ctx, ena_tc); 3454 else 3455 ret = ice_vsi_setup_q_map(vsi, ctx); 3456 3457 if (ret) { 3458 memcpy(&vsi->tc_cfg, &old_tc_cfg, sizeof(vsi->tc_cfg)); 3459 goto out; 3460 } 3461 3462 /* must to indicate which section of VSI context are being modified */ 3463 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID); 3464 ret = ice_update_vsi(&pf->hw, vsi->idx, ctx, NULL); 3465 if (ret) { 3466 dev_info(dev, "Failed VSI Update\n"); 3467 goto out; 3468 } 3469 3470 if (vsi->type == ICE_VSI_PF && 3471 test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) 3472 ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 1, max_txqs); 3473 else 3474 ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 3475 vsi->tc_cfg.ena_tc, max_txqs); 3476 3477 if (ret) { 3478 dev_err(dev, "VSI %d failed TC config, error %d\n", 3479 vsi->vsi_num, ret); 3480 goto out; 3481 } 3482 ice_vsi_update_q_map(vsi, ctx); 3483 vsi->info.valid_sections = 0; 3484 3485 ice_vsi_cfg_netdev_tc(vsi, ena_tc); 3486out: 3487 kfree(ctx); 3488 return ret; 3489} 3490 3491/** 3492 * ice_update_ring_stats - Update ring statistics 3493 * @stats: stats to be updated 3494 * @pkts: number of processed packets 3495 * @bytes: number of processed bytes 3496 * 3497 * This function assumes that caller has acquired a u64_stats_sync lock. 3498 */ 3499static void ice_update_ring_stats(struct ice_q_stats *stats, u64 pkts, u64 bytes) 3500{ 3501 stats->bytes += bytes; 3502 stats->pkts += pkts; 3503} 3504 3505/** 3506 * ice_update_tx_ring_stats - Update Tx ring specific counters 3507 * @tx_ring: ring to update 3508 * @pkts: number of processed packets 3509 * @bytes: number of processed bytes 3510 */ 3511void ice_update_tx_ring_stats(struct ice_tx_ring *tx_ring, u64 pkts, u64 bytes) 3512{ 3513 u64_stats_update_begin(&tx_ring->ring_stats->syncp); 3514 ice_update_ring_stats(&tx_ring->ring_stats->stats, pkts, bytes); 3515 u64_stats_update_end(&tx_ring->ring_stats->syncp); 3516} 3517 3518/** 3519 * ice_update_rx_ring_stats - Update Rx ring specific counters 3520 * @rx_ring: ring to update 3521 * @pkts: number of processed packets 3522 * @bytes: number of processed bytes 3523 */ 3524void ice_update_rx_ring_stats(struct ice_rx_ring *rx_ring, u64 pkts, u64 bytes) 3525{ 3526 u64_stats_update_begin(&rx_ring->ring_stats->syncp); 3527 ice_update_ring_stats(&rx_ring->ring_stats->stats, pkts, bytes); 3528 u64_stats_update_end(&rx_ring->ring_stats->syncp); 3529} 3530 3531/** 3532 * ice_is_dflt_vsi_in_use - check if the default forwarding VSI is being used 3533 * @pi: port info of the switch with default VSI 3534 * 3535 * Return true if the there is a single VSI in default forwarding VSI list 3536 */ 3537bool ice_is_dflt_vsi_in_use(struct ice_port_info *pi) 3538{ 3539 bool exists = false; 3540 3541 ice_check_if_dflt_vsi(pi, 0, &exists); 3542 return exists; 3543} 3544 3545/** 3546 * ice_is_vsi_dflt_vsi - check if the VSI passed in is the default VSI 3547 * @vsi: VSI to compare against default forwarding VSI 3548 * 3549 * If this VSI passed in is the default forwarding VSI then return true, else 3550 * return false 3551 */ 3552bool ice_is_vsi_dflt_vsi(struct ice_vsi *vsi) 3553{ 3554 return ice_check_if_dflt_vsi(vsi->port_info, vsi->idx, NULL); 3555} 3556 3557/** 3558 * ice_set_dflt_vsi - set the default forwarding VSI 3559 * @vsi: VSI getting set as the default forwarding VSI on the switch 3560 * 3561 * If the VSI passed in is already the default VSI and it's enabled just return 3562 * success. 3563 * 3564 * Otherwise try to set the VSI passed in as the switch's default VSI and 3565 * return the result. 3566 */ 3567int ice_set_dflt_vsi(struct ice_vsi *vsi) 3568{ 3569 struct device *dev; 3570 int status; 3571 3572 if (!vsi) 3573 return -EINVAL; 3574 3575 dev = ice_pf_to_dev(vsi->back); 3576 3577 if (ice_lag_is_switchdev_running(vsi->back)) { 3578 dev_dbg(dev, "VSI %d passed is a part of LAG containing interfaces in switchdev mode, nothing to do\n", 3579 vsi->vsi_num); 3580 return 0; 3581 } 3582 3583 /* the VSI passed in is already the default VSI */ 3584 if (ice_is_vsi_dflt_vsi(vsi)) { 3585 dev_dbg(dev, "VSI %d passed in is already the default forwarding VSI, nothing to do\n", 3586 vsi->vsi_num); 3587 return 0; 3588 } 3589 3590 status = ice_cfg_dflt_vsi(vsi->port_info, vsi->idx, true, ICE_FLTR_RX); 3591 if (status) { 3592 dev_err(dev, "Failed to set VSI %d as the default forwarding VSI, error %d\n", 3593 vsi->vsi_num, status); 3594 return status; 3595 } 3596 3597 return 0; 3598} 3599 3600/** 3601 * ice_clear_dflt_vsi - clear the default forwarding VSI 3602 * @vsi: VSI to remove from filter list 3603 * 3604 * If the switch has no default VSI or it's not enabled then return error. 3605 * 3606 * Otherwise try to clear the default VSI and return the result. 3607 */ 3608int ice_clear_dflt_vsi(struct ice_vsi *vsi) 3609{ 3610 struct device *dev; 3611 int status; 3612 3613 if (!vsi) 3614 return -EINVAL; 3615 3616 dev = ice_pf_to_dev(vsi->back); 3617 3618 /* there is no default VSI configured */ 3619 if (!ice_is_dflt_vsi_in_use(vsi->port_info)) 3620 return -ENODEV; 3621 3622 status = ice_cfg_dflt_vsi(vsi->port_info, vsi->idx, false, 3623 ICE_FLTR_RX); 3624 if (status) { 3625 dev_err(dev, "Failed to clear the default forwarding VSI %d, error %d\n", 3626 vsi->vsi_num, status); 3627 return -EIO; 3628 } 3629 3630 return 0; 3631} 3632 3633/** 3634 * ice_get_link_speed_mbps - get link speed in Mbps 3635 * @vsi: the VSI whose link speed is being queried 3636 * 3637 * Return current VSI link speed and 0 if the speed is unknown. 3638 */ 3639int ice_get_link_speed_mbps(struct ice_vsi *vsi) 3640{ 3641 unsigned int link_speed; 3642 3643 link_speed = vsi->port_info->phy.link_info.link_speed; 3644 3645 return (int)ice_get_link_speed(fls(link_speed) - 1); 3646} 3647 3648/** 3649 * ice_get_link_speed_kbps - get link speed in Kbps 3650 * @vsi: the VSI whose link speed is being queried 3651 * 3652 * Return current VSI link speed and 0 if the speed is unknown. 3653 */ 3654int ice_get_link_speed_kbps(struct ice_vsi *vsi) 3655{ 3656 int speed_mbps; 3657 3658 speed_mbps = ice_get_link_speed_mbps(vsi); 3659 3660 return speed_mbps * 1000; 3661} 3662 3663/** 3664 * ice_set_min_bw_limit - setup minimum BW limit for Tx based on min_tx_rate 3665 * @vsi: VSI to be configured 3666 * @min_tx_rate: min Tx rate in Kbps to be configured as BW limit 3667 * 3668 * If the min_tx_rate is specified as 0 that means to clear the minimum BW limit 3669 * profile, otherwise a non-zero value will force a minimum BW limit for the VSI 3670 * on TC 0. 3671 */ 3672int ice_set_min_bw_limit(struct ice_vsi *vsi, u64 min_tx_rate) 3673{ 3674 struct ice_pf *pf = vsi->back; 3675 struct device *dev; 3676 int status; 3677 int speed; 3678 3679 dev = ice_pf_to_dev(pf); 3680 if (!vsi->port_info) { 3681 dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n", 3682 vsi->idx, vsi->type); 3683 return -EINVAL; 3684 } 3685 3686 speed = ice_get_link_speed_kbps(vsi); 3687 if (min_tx_rate > (u64)speed) { 3688 dev_err(dev, "invalid min Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n", 3689 min_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx, 3690 speed); 3691 return -EINVAL; 3692 } 3693 3694 /* Configure min BW for VSI limit */ 3695 if (min_tx_rate) { 3696 status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0, 3697 ICE_MIN_BW, min_tx_rate); 3698 if (status) { 3699 dev_err(dev, "failed to set min Tx rate(%llu Kbps) for %s %d\n", 3700 min_tx_rate, ice_vsi_type_str(vsi->type), 3701 vsi->idx); 3702 return status; 3703 } 3704 3705 dev_dbg(dev, "set min Tx rate(%llu Kbps) for %s\n", 3706 min_tx_rate, ice_vsi_type_str(vsi->type)); 3707 } else { 3708 status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info, 3709 vsi->idx, 0, 3710 ICE_MIN_BW); 3711 if (status) { 3712 dev_err(dev, "failed to clear min Tx rate configuration for %s %d\n", 3713 ice_vsi_type_str(vsi->type), vsi->idx); 3714 return status; 3715 } 3716 3717 dev_dbg(dev, "cleared min Tx rate configuration for %s %d\n", 3718 ice_vsi_type_str(vsi->type), vsi->idx); 3719 } 3720 3721 return 0; 3722} 3723 3724/** 3725 * ice_set_max_bw_limit - setup maximum BW limit for Tx based on max_tx_rate 3726 * @vsi: VSI to be configured 3727 * @max_tx_rate: max Tx rate in Kbps to be configured as BW limit 3728 * 3729 * If the max_tx_rate is specified as 0 that means to clear the maximum BW limit 3730 * profile, otherwise a non-zero value will force a maximum BW limit for the VSI 3731 * on TC 0. 3732 */ 3733int ice_set_max_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate) 3734{ 3735 struct ice_pf *pf = vsi->back; 3736 struct device *dev; 3737 int status; 3738 int speed; 3739 3740 dev = ice_pf_to_dev(pf); 3741 if (!vsi->port_info) { 3742 dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n", 3743 vsi->idx, vsi->type); 3744 return -EINVAL; 3745 } 3746 3747 speed = ice_get_link_speed_kbps(vsi); 3748 if (max_tx_rate > (u64)speed) { 3749 dev_err(dev, "invalid max Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n", 3750 max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx, 3751 speed); 3752 return -EINVAL; 3753 } 3754 3755 /* Configure max BW for VSI limit */ 3756 if (max_tx_rate) { 3757 status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0, 3758 ICE_MAX_BW, max_tx_rate); 3759 if (status) { 3760 dev_err(dev, "failed setting max Tx rate(%llu Kbps) for %s %d\n", 3761 max_tx_rate, ice_vsi_type_str(vsi->type), 3762 vsi->idx); 3763 return status; 3764 } 3765 3766 dev_dbg(dev, "set max Tx rate(%llu Kbps) for %s %d\n", 3767 max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx); 3768 } else { 3769 status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info, 3770 vsi->idx, 0, 3771 ICE_MAX_BW); 3772 if (status) { 3773 dev_err(dev, "failed clearing max Tx rate configuration for %s %d\n", 3774 ice_vsi_type_str(vsi->type), vsi->idx); 3775 return status; 3776 } 3777 3778 dev_dbg(dev, "cleared max Tx rate configuration for %s %d\n", 3779 ice_vsi_type_str(vsi->type), vsi->idx); 3780 } 3781 3782 return 0; 3783} 3784 3785/** 3786 * ice_set_link - turn on/off physical link 3787 * @vsi: VSI to modify physical link on 3788 * @ena: turn on/off physical link 3789 */ 3790int ice_set_link(struct ice_vsi *vsi, bool ena) 3791{ 3792 struct device *dev = ice_pf_to_dev(vsi->back); 3793 struct ice_port_info *pi = vsi->port_info; 3794 struct ice_hw *hw = pi->hw; 3795 int status; 3796 3797 if (vsi->type != ICE_VSI_PF) 3798 return -EINVAL; 3799 3800 status = ice_aq_set_link_restart_an(pi, ena, NULL); 3801 3802 /* if link is owned by manageability, FW will return ICE_AQ_RC_EMODE. 3803 * this is not a fatal error, so print a warning message and return 3804 * a success code. Return an error if FW returns an error code other 3805 * than ICE_AQ_RC_EMODE 3806 */ 3807 if (status == -EIO) { 3808 if (hw->adminq.sq_last_status == ICE_AQ_RC_EMODE) 3809 dev_dbg(dev, "can't set link to %s, err %d aq_err %s. not fatal, continuing\n", 3810 (ena ? "ON" : "OFF"), status, 3811 ice_aq_str(hw->adminq.sq_last_status)); 3812 } else if (status) { 3813 dev_err(dev, "can't set link to %s, err %d aq_err %s\n", 3814 (ena ? "ON" : "OFF"), status, 3815 ice_aq_str(hw->adminq.sq_last_status)); 3816 return status; 3817 } 3818 3819 return 0; 3820} 3821 3822/** 3823 * ice_vsi_add_vlan_zero - add VLAN 0 filter(s) for this VSI 3824 * @vsi: VSI used to add VLAN filters 3825 * 3826 * In Single VLAN Mode (SVM), single VLAN filters via ICE_SW_LKUP_VLAN are based 3827 * on the inner VLAN ID, so the VLAN TPID (i.e. 0x8100 or 0x888a8) doesn't 3828 * matter. In Double VLAN Mode (DVM), outer/single VLAN filters via 3829 * ICE_SW_LKUP_VLAN are based on the outer/single VLAN ID + VLAN TPID. 3830 * 3831 * For both modes add a VLAN 0 + no VLAN TPID filter to handle untagged traffic 3832 * when VLAN pruning is enabled. Also, this handles VLAN 0 priority tagged 3833 * traffic in SVM, since the VLAN TPID isn't part of filtering. 3834 * 3835 * If DVM is enabled then an explicit VLAN 0 + VLAN TPID filter needs to be 3836 * added to allow VLAN 0 priority tagged traffic in DVM, since the VLAN TPID is 3837 * part of filtering. 3838 */ 3839int ice_vsi_add_vlan_zero(struct ice_vsi *vsi) 3840{ 3841 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); 3842 struct ice_vlan vlan; 3843 int err; 3844 3845 vlan = ICE_VLAN(0, 0, 0); 3846 err = vlan_ops->add_vlan(vsi, &vlan); 3847 if (err && err != -EEXIST) 3848 return err; 3849 3850 /* in SVM both VLAN 0 filters are identical */ 3851 if (!ice_is_dvm_ena(&vsi->back->hw)) 3852 return 0; 3853 3854 vlan = ICE_VLAN(ETH_P_8021Q, 0, 0); 3855 err = vlan_ops->add_vlan(vsi, &vlan); 3856 if (err && err != -EEXIST) 3857 return err; 3858 3859 return 0; 3860} 3861 3862/** 3863 * ice_vsi_del_vlan_zero - delete VLAN 0 filter(s) for this VSI 3864 * @vsi: VSI used to add VLAN filters 3865 * 3866 * Delete the VLAN 0 filters in the same manner that they were added in 3867 * ice_vsi_add_vlan_zero. 3868 */ 3869int ice_vsi_del_vlan_zero(struct ice_vsi *vsi) 3870{ 3871 struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); 3872 struct ice_vlan vlan; 3873 int err; 3874 3875 vlan = ICE_VLAN(0, 0, 0); 3876 err = vlan_ops->del_vlan(vsi, &vlan); 3877 if (err && err != -EEXIST) 3878 return err; 3879 3880 /* in SVM both VLAN 0 filters are identical */ 3881 if (!ice_is_dvm_ena(&vsi->back->hw)) 3882 return 0; 3883 3884 vlan = ICE_VLAN(ETH_P_8021Q, 0, 0); 3885 err = vlan_ops->del_vlan(vsi, &vlan); 3886 if (err && err != -EEXIST) 3887 return err; 3888 3889 /* when deleting the last VLAN filter, make sure to disable the VLAN 3890 * promisc mode so the filter isn't left by accident 3891 */ 3892 return ice_clear_vsi_promisc(&vsi->back->hw, vsi->idx, 3893 ICE_MCAST_VLAN_PROMISC_BITS, 0); 3894} 3895 3896/** 3897 * ice_vsi_num_zero_vlans - get number of VLAN 0 filters based on VLAN mode 3898 * @vsi: VSI used to get the VLAN mode 3899 * 3900 * If DVM is enabled then 2 VLAN 0 filters are added, else if SVM is enabled 3901 * then 1 VLAN 0 filter is added. See ice_vsi_add_vlan_zero for more details. 3902 */ 3903static u16 ice_vsi_num_zero_vlans(struct ice_vsi *vsi) 3904{ 3905#define ICE_DVM_NUM_ZERO_VLAN_FLTRS 2 3906#define ICE_SVM_NUM_ZERO_VLAN_FLTRS 1 3907 /* no VLAN 0 filter is created when a port VLAN is active */ 3908 if (vsi->type == ICE_VSI_VF) { 3909 if (WARN_ON(!vsi->vf)) 3910 return 0; 3911 3912 if (ice_vf_is_port_vlan_ena(vsi->vf)) 3913 return 0; 3914 } 3915 3916 if (ice_is_dvm_ena(&vsi->back->hw)) 3917 return ICE_DVM_NUM_ZERO_VLAN_FLTRS; 3918 else 3919 return ICE_SVM_NUM_ZERO_VLAN_FLTRS; 3920} 3921 3922/** 3923 * ice_vsi_has_non_zero_vlans - check if VSI has any non-zero VLANs 3924 * @vsi: VSI used to determine if any non-zero VLANs have been added 3925 */ 3926bool ice_vsi_has_non_zero_vlans(struct ice_vsi *vsi) 3927{ 3928 return (vsi->num_vlan > ice_vsi_num_zero_vlans(vsi)); 3929} 3930 3931/** 3932 * ice_vsi_num_non_zero_vlans - get the number of non-zero VLANs for this VSI 3933 * @vsi: VSI used to get the number of non-zero VLANs added 3934 */ 3935u16 ice_vsi_num_non_zero_vlans(struct ice_vsi *vsi) 3936{ 3937 return (vsi->num_vlan - ice_vsi_num_zero_vlans(vsi)); 3938} 3939 3940/** 3941 * ice_is_feature_supported 3942 * @pf: pointer to the struct ice_pf instance 3943 * @f: feature enum to be checked 3944 * 3945 * returns true if feature is supported, false otherwise 3946 */ 3947bool ice_is_feature_supported(struct ice_pf *pf, enum ice_feature f) 3948{ 3949 if (f < 0 || f >= ICE_F_MAX) 3950 return false; 3951 3952 return test_bit(f, pf->features); 3953} 3954 3955/** 3956 * ice_set_feature_support 3957 * @pf: pointer to the struct ice_pf instance 3958 * @f: feature enum to set 3959 */ 3960void ice_set_feature_support(struct ice_pf *pf, enum ice_feature f) 3961{ 3962 if (f < 0 || f >= ICE_F_MAX) 3963 return; 3964 3965 set_bit(f, pf->features); 3966} 3967 3968/** 3969 * ice_clear_feature_support 3970 * @pf: pointer to the struct ice_pf instance 3971 * @f: feature enum to clear 3972 */ 3973void ice_clear_feature_support(struct ice_pf *pf, enum ice_feature f) 3974{ 3975 if (f < 0 || f >= ICE_F_MAX) 3976 return; 3977 3978 clear_bit(f, pf->features); 3979} 3980 3981/** 3982 * ice_init_feature_support 3983 * @pf: pointer to the struct ice_pf instance 3984 * 3985 * called during init to setup supported feature 3986 */ 3987void ice_init_feature_support(struct ice_pf *pf) 3988{ 3989 switch (pf->hw.device_id) { 3990 case ICE_DEV_ID_E810C_BACKPLANE: 3991 case ICE_DEV_ID_E810C_QSFP: 3992 case ICE_DEV_ID_E810C_SFP: 3993 ice_set_feature_support(pf, ICE_F_DSCP); 3994 ice_set_feature_support(pf, ICE_F_PTP_EXTTS); 3995 if (ice_is_e810t(&pf->hw)) { 3996 ice_set_feature_support(pf, ICE_F_SMA_CTRL); 3997 if (ice_gnss_is_gps_present(&pf->hw)) 3998 ice_set_feature_support(pf, ICE_F_GNSS); 3999 } 4000 break; 4001 default: 4002 break; 4003 } 4004} 4005 4006/** 4007 * ice_vsi_update_security - update security block in VSI 4008 * @vsi: pointer to VSI structure 4009 * @fill: function pointer to fill ctx 4010 */ 4011int 4012ice_vsi_update_security(struct ice_vsi *vsi, void (*fill)(struct ice_vsi_ctx *)) 4013{ 4014 struct ice_vsi_ctx ctx = { 0 }; 4015 4016 ctx.info = vsi->info; 4017 ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); 4018 fill(&ctx); 4019 4020 if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL)) 4021 return -ENODEV; 4022 4023 vsi->info = ctx.info; 4024 return 0; 4025} 4026 4027/** 4028 * ice_vsi_ctx_set_antispoof - set antispoof function in VSI ctx 4029 * @ctx: pointer to VSI ctx structure 4030 */ 4031void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx) 4032{ 4033 ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF | 4034 (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << 4035 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); 4036} 4037 4038/** 4039 * ice_vsi_ctx_clear_antispoof - clear antispoof function in VSI ctx 4040 * @ctx: pointer to VSI ctx structure 4041 */ 4042void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx) 4043{ 4044 ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF & 4045 ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << 4046 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); 4047} 4048 4049/** 4050 * ice_vsi_ctx_set_allow_override - allow destination override on VSI 4051 * @ctx: pointer to VSI ctx structure 4052 */ 4053void ice_vsi_ctx_set_allow_override(struct ice_vsi_ctx *ctx) 4054{ 4055 ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; 4056} 4057 4058/** 4059 * ice_vsi_ctx_clear_allow_override - turn off destination override on VSI 4060 * @ctx: pointer to VSI ctx structure 4061 */ 4062void ice_vsi_ctx_clear_allow_override(struct ice_vsi_ctx *ctx) 4063{ 4064 ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; 4065} 4066 4067/** 4068 * ice_vsi_update_local_lb - update sw block in VSI with local loopback bit 4069 * @vsi: pointer to VSI structure 4070 * @set: set or unset the bit 4071 */ 4072int 4073ice_vsi_update_local_lb(struct ice_vsi *vsi, bool set) 4074{ 4075 struct ice_vsi_ctx ctx = { 4076 .info = vsi->info, 4077 }; 4078 4079 ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID); 4080 if (set) 4081 ctx.info.sw_flags |= ICE_AQ_VSI_SW_FLAG_LOCAL_LB; 4082 else 4083 ctx.info.sw_flags &= ~ICE_AQ_VSI_SW_FLAG_LOCAL_LB; 4084 4085 if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL)) 4086 return -ENODEV; 4087 4088 vsi->info = ctx.info; 4089 return 0; 4090} 4091