1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2017 - 2019 Pensando Systems, Inc */ 3 4 #include <linux/printk.h> 5 #include <linux/dynamic_debug.h> 6 #include <linux/netdevice.h> 7 #include <linux/etherdevice.h> 8 #include <linux/rtnetlink.h> 9 #include <linux/interrupt.h> 10 #include <linux/pci.h> 11 #include <linux/cpumask.h> 12 13 #include "ionic.h" 14 #include "ionic_bus.h" 15 #include "ionic_lif.h" 16 #include "ionic_txrx.h" 17 #include "ionic_ethtool.h" 18 #include "ionic_debugfs.h" 19 20 /* queuetype support level */ 21 static const u8 ionic_qtype_versions[IONIC_QTYPE_MAX] = { 22 [IONIC_QTYPE_ADMINQ] = 0, /* 0 = Base version with CQ support */ 23 [IONIC_QTYPE_NOTIFYQ] = 0, /* 0 = Base version */ 24 [IONIC_QTYPE_RXQ] = 0, /* 0 = Base version with CQ+SG support */ 25 [IONIC_QTYPE_TXQ] = 1, /* 0 = Base version with CQ+SG support 26 * 1 = ... with Tx SG version 1 27 */ 28 }; 29 30 static void ionic_lif_rx_mode(struct ionic_lif *lif, unsigned int rx_mode); 31 static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr); 32 static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr); 33 static void ionic_link_status_check(struct ionic_lif *lif); 34 static void ionic_lif_handle_fw_down(struct ionic_lif *lif); 35 static void ionic_lif_handle_fw_up(struct ionic_lif *lif); 36 static void ionic_lif_set_netdev_info(struct ionic_lif *lif); 37 38 static int ionic_start_queues(struct ionic_lif *lif); 39 static void ionic_stop_queues(struct ionic_lif *lif); 40 static void ionic_lif_queue_identify(struct ionic_lif *lif); 41 42 static void ionic_lif_deferred_work(struct work_struct *work) 43 { 44 struct ionic_lif *lif = container_of(work, struct ionic_lif, deferred.work); 45 struct ionic_deferred *def = &lif->deferred; 46 struct ionic_deferred_work *w = NULL; 47 48 spin_lock_bh(&def->lock); 49 if (!list_empty(&def->list)) { 50 w = list_first_entry(&def->list, 51 struct ionic_deferred_work, list); 52 list_del(&w->list); 53 } 54 spin_unlock_bh(&def->lock); 55 56 if (w) { 57 switch (w->type) { 58 case IONIC_DW_TYPE_RX_MODE: 59 ionic_lif_rx_mode(lif, w->rx_mode); 60 break; 61 case IONIC_DW_TYPE_RX_ADDR_ADD: 62 ionic_lif_addr_add(lif, w->addr); 63 break; 64 case IONIC_DW_TYPE_RX_ADDR_DEL: 65 ionic_lif_addr_del(lif, w->addr); 66 break; 67 case IONIC_DW_TYPE_LINK_STATUS: 68 ionic_link_status_check(lif); 69 break; 70 case IONIC_DW_TYPE_LIF_RESET: 71 if (w->fw_status) 72 ionic_lif_handle_fw_up(lif); 73 else 74 ionic_lif_handle_fw_down(lif); 75 break; 76 default: 77 break; 78 } 79 kfree(w); 80 schedule_work(&def->work); 81 } 82 } 83 84 void ionic_lif_deferred_enqueue(struct ionic_deferred *def, 85 struct ionic_deferred_work *work) 86 { 87 spin_lock_bh(&def->lock); 88 list_add_tail(&work->list, &def->list); 89 spin_unlock_bh(&def->lock); 90 schedule_work(&def->work); 91 } 92 93 static void ionic_link_status_check(struct ionic_lif *lif) 94 { 95 struct net_device *netdev = lif->netdev; 96 u16 link_status; 97 bool link_up; 98 99 if (!test_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state) || 100 test_bit(IONIC_LIF_F_QUEUE_RESET, lif->state)) 101 return; 102 103 link_status = le16_to_cpu(lif->info->status.link_status); 104 link_up = link_status == IONIC_PORT_OPER_STATUS_UP; 105 106 if (link_up) { 107 if (!netif_carrier_ok(netdev)) { 108 u32 link_speed; 109 110 ionic_port_identify(lif->ionic); 111 link_speed = le32_to_cpu(lif->info->status.link_speed); 112 netdev_info(netdev, "Link up - %d Gbps\n", 113 link_speed / 1000); 114 netif_carrier_on(netdev); 115 } 116 117 if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev)) 118 ionic_start_queues(lif); 119 } else { 120 if (netif_carrier_ok(netdev)) { 121 netdev_info(netdev, "Link down\n"); 122 netif_carrier_off(netdev); 123 } 124 125 if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev)) 126 ionic_stop_queues(lif); 127 } 128 129 clear_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state); 130 } 131 132 void ionic_link_status_check_request(struct ionic_lif *lif) 133 { 134 struct ionic_deferred_work *work; 135 136 /* we only need one request outstanding at a time */ 137 if (test_and_set_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state)) 138 return; 139 140 if (in_interrupt()) { 141 work = kzalloc(sizeof(*work), GFP_ATOMIC); 142 if (!work) 143 return; 144 145 work->type = IONIC_DW_TYPE_LINK_STATUS; 146 ionic_lif_deferred_enqueue(&lif->deferred, work); 147 } else { 148 ionic_link_status_check(lif); 149 } 150 } 151 152 static irqreturn_t ionic_isr(int irq, void *data) 153 { 154 struct napi_struct *napi = data; 155 156 napi_schedule_irqoff(napi); 157 158 return IRQ_HANDLED; 159 } 160 161 static int ionic_request_irq(struct ionic_lif *lif, struct ionic_qcq *qcq) 162 { 163 struct ionic_intr_info *intr = &qcq->intr; 164 struct device *dev = lif->ionic->dev; 165 struct ionic_queue *q = &qcq->q; 166 const char *name; 167 168 if (lif->registered) 169 name = lif->netdev->name; 170 else 171 name = dev_name(dev); 172 173 snprintf(intr->name, sizeof(intr->name), 174 "%s-%s-%s", IONIC_DRV_NAME, name, q->name); 175 176 return devm_request_irq(dev, intr->vector, ionic_isr, 177 0, intr->name, &qcq->napi); 178 } 179 180 static int ionic_intr_alloc(struct ionic_lif *lif, struct ionic_intr_info *intr) 181 { 182 struct ionic *ionic = lif->ionic; 183 int index; 184 185 index = find_first_zero_bit(ionic->intrs, ionic->nintrs); 186 if (index == ionic->nintrs) { 187 netdev_warn(lif->netdev, "%s: no intr, index=%d nintrs=%d\n", 188 __func__, index, ionic->nintrs); 189 return -ENOSPC; 190 } 191 192 set_bit(index, ionic->intrs); 193 ionic_intr_init(&ionic->idev, intr, index); 194 195 return 0; 196 } 197 198 static void ionic_intr_free(struct ionic *ionic, int index) 199 { 200 if (index != IONIC_INTR_INDEX_NOT_ASSIGNED && index < ionic->nintrs) 201 clear_bit(index, ionic->intrs); 202 } 203 204 static int ionic_qcq_enable(struct ionic_qcq *qcq) 205 { 206 struct ionic_queue *q = &qcq->q; 207 struct ionic_lif *lif = q->lif; 208 struct ionic_dev *idev; 209 struct device *dev; 210 211 struct ionic_admin_ctx ctx = { 212 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 213 .cmd.q_control = { 214 .opcode = IONIC_CMD_Q_CONTROL, 215 .lif_index = cpu_to_le16(lif->index), 216 .type = q->type, 217 .index = cpu_to_le32(q->index), 218 .oper = IONIC_Q_ENABLE, 219 }, 220 }; 221 222 idev = &lif->ionic->idev; 223 dev = lif->ionic->dev; 224 225 dev_dbg(dev, "q_enable.index %d q_enable.qtype %d\n", 226 ctx.cmd.q_control.index, ctx.cmd.q_control.type); 227 228 if (qcq->flags & IONIC_QCQ_F_INTR) { 229 irq_set_affinity_hint(qcq->intr.vector, 230 &qcq->intr.affinity_mask); 231 napi_enable(&qcq->napi); 232 ionic_intr_clean(idev->intr_ctrl, qcq->intr.index); 233 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, 234 IONIC_INTR_MASK_CLEAR); 235 } 236 237 return ionic_adminq_post_wait(lif, &ctx); 238 } 239 240 static int ionic_qcq_disable(struct ionic_qcq *qcq) 241 { 242 struct ionic_queue *q = &qcq->q; 243 struct ionic_lif *lif = q->lif; 244 struct ionic_dev *idev; 245 struct device *dev; 246 247 struct ionic_admin_ctx ctx = { 248 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 249 .cmd.q_control = { 250 .opcode = IONIC_CMD_Q_CONTROL, 251 .lif_index = cpu_to_le16(lif->index), 252 .type = q->type, 253 .index = cpu_to_le32(q->index), 254 .oper = IONIC_Q_DISABLE, 255 }, 256 }; 257 258 idev = &lif->ionic->idev; 259 dev = lif->ionic->dev; 260 261 dev_dbg(dev, "q_disable.index %d q_disable.qtype %d\n", 262 ctx.cmd.q_control.index, ctx.cmd.q_control.type); 263 264 if (qcq->flags & IONIC_QCQ_F_INTR) { 265 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, 266 IONIC_INTR_MASK_SET); 267 synchronize_irq(qcq->intr.vector); 268 irq_set_affinity_hint(qcq->intr.vector, NULL); 269 napi_disable(&qcq->napi); 270 } 271 272 return ionic_adminq_post_wait(lif, &ctx); 273 } 274 275 static void ionic_lif_qcq_deinit(struct ionic_lif *lif, struct ionic_qcq *qcq) 276 { 277 struct ionic_dev *idev = &lif->ionic->idev; 278 279 if (!qcq) 280 return; 281 282 if (!(qcq->flags & IONIC_QCQ_F_INITED)) 283 return; 284 285 if (qcq->flags & IONIC_QCQ_F_INTR) { 286 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, 287 IONIC_INTR_MASK_SET); 288 netif_napi_del(&qcq->napi); 289 } 290 291 qcq->flags &= ~IONIC_QCQ_F_INITED; 292 } 293 294 static void ionic_qcq_free(struct ionic_lif *lif, struct ionic_qcq *qcq) 295 { 296 struct device *dev = lif->ionic->dev; 297 298 if (!qcq) 299 return; 300 301 ionic_debugfs_del_qcq(qcq); 302 303 dma_free_coherent(dev, qcq->total_size, qcq->base, qcq->base_pa); 304 qcq->base = NULL; 305 qcq->base_pa = 0; 306 307 if (qcq->flags & IONIC_QCQ_F_INTR) { 308 irq_set_affinity_hint(qcq->intr.vector, NULL); 309 devm_free_irq(dev, qcq->intr.vector, &qcq->napi); 310 qcq->intr.vector = 0; 311 ionic_intr_free(lif->ionic, qcq->intr.index); 312 } 313 314 devm_kfree(dev, qcq->cq.info); 315 qcq->cq.info = NULL; 316 devm_kfree(dev, qcq->q.info); 317 qcq->q.info = NULL; 318 devm_kfree(dev, qcq); 319 } 320 321 static void ionic_qcqs_free(struct ionic_lif *lif) 322 { 323 struct device *dev = lif->ionic->dev; 324 unsigned int i; 325 326 if (lif->notifyqcq) { 327 ionic_qcq_free(lif, lif->notifyqcq); 328 lif->notifyqcq = NULL; 329 } 330 331 if (lif->adminqcq) { 332 ionic_qcq_free(lif, lif->adminqcq); 333 lif->adminqcq = NULL; 334 } 335 336 if (lif->rxqcqs) { 337 for (i = 0; i < lif->nxqs; i++) 338 if (lif->rxqcqs[i].stats) 339 devm_kfree(dev, lif->rxqcqs[i].stats); 340 devm_kfree(dev, lif->rxqcqs); 341 lif->rxqcqs = NULL; 342 } 343 344 if (lif->txqcqs) { 345 for (i = 0; i < lif->nxqs; i++) 346 if (lif->txqcqs[i].stats) 347 devm_kfree(dev, lif->txqcqs[i].stats); 348 devm_kfree(dev, lif->txqcqs); 349 lif->txqcqs = NULL; 350 } 351 } 352 353 static void ionic_link_qcq_interrupts(struct ionic_qcq *src_qcq, 354 struct ionic_qcq *n_qcq) 355 { 356 if (WARN_ON(n_qcq->flags & IONIC_QCQ_F_INTR)) { 357 ionic_intr_free(n_qcq->cq.lif->ionic, n_qcq->intr.index); 358 n_qcq->flags &= ~IONIC_QCQ_F_INTR; 359 } 360 361 n_qcq->intr.vector = src_qcq->intr.vector; 362 n_qcq->intr.index = src_qcq->intr.index; 363 } 364 365 static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type, 366 unsigned int index, 367 const char *name, unsigned int flags, 368 unsigned int num_descs, unsigned int desc_size, 369 unsigned int cq_desc_size, 370 unsigned int sg_desc_size, 371 unsigned int pid, struct ionic_qcq **qcq) 372 { 373 struct ionic_dev *idev = &lif->ionic->idev; 374 u32 q_size, cq_size, sg_size, total_size; 375 struct device *dev = lif->ionic->dev; 376 void *q_base, *cq_base, *sg_base; 377 dma_addr_t cq_base_pa = 0; 378 dma_addr_t sg_base_pa = 0; 379 dma_addr_t q_base_pa = 0; 380 struct ionic_qcq *new; 381 int err; 382 383 *qcq = NULL; 384 385 q_size = num_descs * desc_size; 386 cq_size = num_descs * cq_desc_size; 387 sg_size = num_descs * sg_desc_size; 388 389 total_size = ALIGN(q_size, PAGE_SIZE) + ALIGN(cq_size, PAGE_SIZE); 390 /* Note: aligning q_size/cq_size is not enough due to cq_base 391 * address aligning as q_base could be not aligned to the page. 392 * Adding PAGE_SIZE. 393 */ 394 total_size += PAGE_SIZE; 395 if (flags & IONIC_QCQ_F_SG) { 396 total_size += ALIGN(sg_size, PAGE_SIZE); 397 total_size += PAGE_SIZE; 398 } 399 400 new = devm_kzalloc(dev, sizeof(*new), GFP_KERNEL); 401 if (!new) { 402 netdev_err(lif->netdev, "Cannot allocate queue structure\n"); 403 err = -ENOMEM; 404 goto err_out; 405 } 406 407 new->flags = flags; 408 409 new->q.info = devm_kzalloc(dev, sizeof(*new->q.info) * num_descs, 410 GFP_KERNEL); 411 if (!new->q.info) { 412 netdev_err(lif->netdev, "Cannot allocate queue info\n"); 413 err = -ENOMEM; 414 goto err_out; 415 } 416 417 new->q.type = type; 418 419 err = ionic_q_init(lif, idev, &new->q, index, name, num_descs, 420 desc_size, sg_desc_size, pid); 421 if (err) { 422 netdev_err(lif->netdev, "Cannot initialize queue\n"); 423 goto err_out; 424 } 425 426 if (flags & IONIC_QCQ_F_INTR) { 427 err = ionic_intr_alloc(lif, &new->intr); 428 if (err) { 429 netdev_warn(lif->netdev, "no intr for %s: %d\n", 430 name, err); 431 goto err_out; 432 } 433 434 err = ionic_bus_get_irq(lif->ionic, new->intr.index); 435 if (err < 0) { 436 netdev_warn(lif->netdev, "no vector for %s: %d\n", 437 name, err); 438 goto err_out_free_intr; 439 } 440 new->intr.vector = err; 441 ionic_intr_mask_assert(idev->intr_ctrl, new->intr.index, 442 IONIC_INTR_MASK_SET); 443 444 err = ionic_request_irq(lif, new); 445 if (err) { 446 netdev_warn(lif->netdev, "irq request failed %d\n", err); 447 goto err_out_free_intr; 448 } 449 450 new->intr.cpu = cpumask_local_spread(new->intr.index, 451 dev_to_node(dev)); 452 if (new->intr.cpu != -1) 453 cpumask_set_cpu(new->intr.cpu, 454 &new->intr.affinity_mask); 455 } else { 456 new->intr.index = IONIC_INTR_INDEX_NOT_ASSIGNED; 457 } 458 459 new->cq.info = devm_kzalloc(dev, sizeof(*new->cq.info) * num_descs, 460 GFP_KERNEL); 461 if (!new->cq.info) { 462 netdev_err(lif->netdev, "Cannot allocate completion queue info\n"); 463 err = -ENOMEM; 464 goto err_out_free_irq; 465 } 466 467 err = ionic_cq_init(lif, &new->cq, &new->intr, num_descs, cq_desc_size); 468 if (err) { 469 netdev_err(lif->netdev, "Cannot initialize completion queue\n"); 470 goto err_out_free_irq; 471 } 472 473 new->base = dma_alloc_coherent(dev, total_size, &new->base_pa, 474 GFP_KERNEL); 475 if (!new->base) { 476 netdev_err(lif->netdev, "Cannot allocate queue DMA memory\n"); 477 err = -ENOMEM; 478 goto err_out_free_irq; 479 } 480 481 new->total_size = total_size; 482 483 q_base = new->base; 484 q_base_pa = new->base_pa; 485 486 cq_base = (void *)ALIGN((uintptr_t)q_base + q_size, PAGE_SIZE); 487 cq_base_pa = ALIGN(q_base_pa + q_size, PAGE_SIZE); 488 489 if (flags & IONIC_QCQ_F_SG) { 490 sg_base = (void *)ALIGN((uintptr_t)cq_base + cq_size, 491 PAGE_SIZE); 492 sg_base_pa = ALIGN(cq_base_pa + cq_size, PAGE_SIZE); 493 ionic_q_sg_map(&new->q, sg_base, sg_base_pa); 494 } 495 496 ionic_q_map(&new->q, q_base, q_base_pa); 497 ionic_cq_map(&new->cq, cq_base, cq_base_pa); 498 ionic_cq_bind(&new->cq, &new->q); 499 500 *qcq = new; 501 502 return 0; 503 504 err_out_free_irq: 505 if (flags & IONIC_QCQ_F_INTR) 506 devm_free_irq(dev, new->intr.vector, &new->napi); 507 err_out_free_intr: 508 if (flags & IONIC_QCQ_F_INTR) 509 ionic_intr_free(lif->ionic, new->intr.index); 510 err_out: 511 dev_err(dev, "qcq alloc of %s%d failed %d\n", name, index, err); 512 return err; 513 } 514 515 static int ionic_qcqs_alloc(struct ionic_lif *lif) 516 { 517 struct device *dev = lif->ionic->dev; 518 unsigned int q_list_size; 519 unsigned int flags; 520 int err; 521 int i; 522 523 flags = IONIC_QCQ_F_INTR; 524 err = ionic_qcq_alloc(lif, IONIC_QTYPE_ADMINQ, 0, "admin", flags, 525 IONIC_ADMINQ_LENGTH, 526 sizeof(struct ionic_admin_cmd), 527 sizeof(struct ionic_admin_comp), 528 0, lif->kern_pid, &lif->adminqcq); 529 if (err) 530 return err; 531 ionic_debugfs_add_qcq(lif, lif->adminqcq); 532 533 if (lif->ionic->nnqs_per_lif) { 534 flags = IONIC_QCQ_F_NOTIFYQ; 535 err = ionic_qcq_alloc(lif, IONIC_QTYPE_NOTIFYQ, 0, "notifyq", 536 flags, IONIC_NOTIFYQ_LENGTH, 537 sizeof(struct ionic_notifyq_cmd), 538 sizeof(union ionic_notifyq_comp), 539 0, lif->kern_pid, &lif->notifyqcq); 540 if (err) 541 goto err_out_free_adminqcq; 542 ionic_debugfs_add_qcq(lif, lif->notifyqcq); 543 544 /* Let the notifyq ride on the adminq interrupt */ 545 ionic_link_qcq_interrupts(lif->adminqcq, lif->notifyqcq); 546 } 547 548 q_list_size = sizeof(*lif->txqcqs) * lif->nxqs; 549 err = -ENOMEM; 550 lif->txqcqs = devm_kzalloc(dev, q_list_size, GFP_KERNEL); 551 if (!lif->txqcqs) 552 goto err_out_free_notifyqcq; 553 for (i = 0; i < lif->nxqs; i++) { 554 lif->txqcqs[i].stats = devm_kzalloc(dev, 555 sizeof(struct ionic_q_stats), 556 GFP_KERNEL); 557 if (!lif->txqcqs[i].stats) 558 goto err_out_free_tx_stats; 559 } 560 561 lif->rxqcqs = devm_kzalloc(dev, q_list_size, GFP_KERNEL); 562 if (!lif->rxqcqs) 563 goto err_out_free_tx_stats; 564 for (i = 0; i < lif->nxqs; i++) { 565 lif->rxqcqs[i].stats = devm_kzalloc(dev, 566 sizeof(struct ionic_q_stats), 567 GFP_KERNEL); 568 if (!lif->rxqcqs[i].stats) 569 goto err_out_free_rx_stats; 570 } 571 572 return 0; 573 574 err_out_free_rx_stats: 575 for (i = 0; i < lif->nxqs; i++) 576 if (lif->rxqcqs[i].stats) 577 devm_kfree(dev, lif->rxqcqs[i].stats); 578 devm_kfree(dev, lif->rxqcqs); 579 lif->rxqcqs = NULL; 580 err_out_free_tx_stats: 581 for (i = 0; i < lif->nxqs; i++) 582 if (lif->txqcqs[i].stats) 583 devm_kfree(dev, lif->txqcqs[i].stats); 584 devm_kfree(dev, lif->txqcqs); 585 lif->txqcqs = NULL; 586 err_out_free_notifyqcq: 587 if (lif->notifyqcq) { 588 ionic_qcq_free(lif, lif->notifyqcq); 589 lif->notifyqcq = NULL; 590 } 591 err_out_free_adminqcq: 592 ionic_qcq_free(lif, lif->adminqcq); 593 lif->adminqcq = NULL; 594 595 return err; 596 } 597 598 static int ionic_lif_txq_init(struct ionic_lif *lif, struct ionic_qcq *qcq) 599 { 600 struct device *dev = lif->ionic->dev; 601 struct ionic_queue *q = &qcq->q; 602 struct ionic_cq *cq = &qcq->cq; 603 struct ionic_admin_ctx ctx = { 604 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 605 .cmd.q_init = { 606 .opcode = IONIC_CMD_Q_INIT, 607 .lif_index = cpu_to_le16(lif->index), 608 .type = q->type, 609 .ver = lif->qtype_info[q->type].version, 610 .index = cpu_to_le32(q->index), 611 .flags = cpu_to_le16(IONIC_QINIT_F_IRQ | 612 IONIC_QINIT_F_SG), 613 .intr_index = cpu_to_le16(lif->rxqcqs[q->index].qcq->intr.index), 614 .pid = cpu_to_le16(q->pid), 615 .ring_size = ilog2(q->num_descs), 616 .ring_base = cpu_to_le64(q->base_pa), 617 .cq_ring_base = cpu_to_le64(cq->base_pa), 618 .sg_ring_base = cpu_to_le64(q->sg_base_pa), 619 }, 620 }; 621 int err; 622 623 dev_dbg(dev, "txq_init.pid %d\n", ctx.cmd.q_init.pid); 624 dev_dbg(dev, "txq_init.index %d\n", ctx.cmd.q_init.index); 625 dev_dbg(dev, "txq_init.ring_base 0x%llx\n", ctx.cmd.q_init.ring_base); 626 dev_dbg(dev, "txq_init.ring_size %d\n", ctx.cmd.q_init.ring_size); 627 dev_dbg(dev, "txq_init.flags 0x%x\n", ctx.cmd.q_init.flags); 628 dev_dbg(dev, "txq_init.ver %d\n", ctx.cmd.q_init.ver); 629 630 q->tail = q->info; 631 q->head = q->tail; 632 cq->tail = cq->info; 633 634 err = ionic_adminq_post_wait(lif, &ctx); 635 if (err) 636 return err; 637 638 q->hw_type = ctx.comp.q_init.hw_type; 639 q->hw_index = le32_to_cpu(ctx.comp.q_init.hw_index); 640 q->dbval = IONIC_DBELL_QID(q->hw_index); 641 642 dev_dbg(dev, "txq->hw_type %d\n", q->hw_type); 643 dev_dbg(dev, "txq->hw_index %d\n", q->hw_index); 644 645 qcq->flags |= IONIC_QCQ_F_INITED; 646 647 return 0; 648 } 649 650 static int ionic_lif_rxq_init(struct ionic_lif *lif, struct ionic_qcq *qcq) 651 { 652 struct device *dev = lif->ionic->dev; 653 struct ionic_queue *q = &qcq->q; 654 struct ionic_cq *cq = &qcq->cq; 655 struct ionic_admin_ctx ctx = { 656 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 657 .cmd.q_init = { 658 .opcode = IONIC_CMD_Q_INIT, 659 .lif_index = cpu_to_le16(lif->index), 660 .type = q->type, 661 .ver = lif->qtype_info[q->type].version, 662 .index = cpu_to_le32(q->index), 663 .flags = cpu_to_le16(IONIC_QINIT_F_IRQ | 664 IONIC_QINIT_F_SG), 665 .intr_index = cpu_to_le16(cq->bound_intr->index), 666 .pid = cpu_to_le16(q->pid), 667 .ring_size = ilog2(q->num_descs), 668 .ring_base = cpu_to_le64(q->base_pa), 669 .cq_ring_base = cpu_to_le64(cq->base_pa), 670 .sg_ring_base = cpu_to_le64(q->sg_base_pa), 671 }, 672 }; 673 int err; 674 675 dev_dbg(dev, "rxq_init.pid %d\n", ctx.cmd.q_init.pid); 676 dev_dbg(dev, "rxq_init.index %d\n", ctx.cmd.q_init.index); 677 dev_dbg(dev, "rxq_init.ring_base 0x%llx\n", ctx.cmd.q_init.ring_base); 678 dev_dbg(dev, "rxq_init.ring_size %d\n", ctx.cmd.q_init.ring_size); 679 dev_dbg(dev, "rxq_init.flags 0x%x\n", ctx.cmd.q_init.flags); 680 dev_dbg(dev, "rxq_init.ver %d\n", ctx.cmd.q_init.ver); 681 682 q->tail = q->info; 683 q->head = q->tail; 684 cq->tail = cq->info; 685 686 err = ionic_adminq_post_wait(lif, &ctx); 687 if (err) 688 return err; 689 690 q->hw_type = ctx.comp.q_init.hw_type; 691 q->hw_index = le32_to_cpu(ctx.comp.q_init.hw_index); 692 q->dbval = IONIC_DBELL_QID(q->hw_index); 693 694 dev_dbg(dev, "rxq->hw_type %d\n", q->hw_type); 695 dev_dbg(dev, "rxq->hw_index %d\n", q->hw_index); 696 697 netif_napi_add(lif->netdev, &qcq->napi, ionic_rx_napi, 698 NAPI_POLL_WEIGHT); 699 700 qcq->flags |= IONIC_QCQ_F_INITED; 701 702 return 0; 703 } 704 705 static bool ionic_notifyq_service(struct ionic_cq *cq, 706 struct ionic_cq_info *cq_info) 707 { 708 union ionic_notifyq_comp *comp = cq_info->cq_desc; 709 struct ionic_deferred_work *work; 710 struct net_device *netdev; 711 struct ionic_queue *q; 712 struct ionic_lif *lif; 713 u64 eid; 714 715 q = cq->bound_q; 716 lif = q->info[0].cb_arg; 717 netdev = lif->netdev; 718 eid = le64_to_cpu(comp->event.eid); 719 720 /* Have we run out of new completions to process? */ 721 if (eid <= lif->last_eid) 722 return false; 723 724 lif->last_eid = eid; 725 726 dev_dbg(lif->ionic->dev, "notifyq event:\n"); 727 dynamic_hex_dump("event ", DUMP_PREFIX_OFFSET, 16, 1, 728 comp, sizeof(*comp), true); 729 730 switch (le16_to_cpu(comp->event.ecode)) { 731 case IONIC_EVENT_LINK_CHANGE: 732 ionic_link_status_check_request(lif); 733 break; 734 case IONIC_EVENT_RESET: 735 work = kzalloc(sizeof(*work), GFP_ATOMIC); 736 if (!work) { 737 netdev_err(lif->netdev, "%s OOM\n", __func__); 738 } else { 739 work->type = IONIC_DW_TYPE_LIF_RESET; 740 ionic_lif_deferred_enqueue(&lif->deferred, work); 741 } 742 break; 743 default: 744 netdev_warn(netdev, "Notifyq event ecode=%d eid=%lld\n", 745 comp->event.ecode, eid); 746 break; 747 } 748 749 return true; 750 } 751 752 static int ionic_notifyq_clean(struct ionic_lif *lif, int budget) 753 { 754 struct ionic_dev *idev = &lif->ionic->idev; 755 struct ionic_cq *cq = &lif->notifyqcq->cq; 756 u32 work_done; 757 758 work_done = ionic_cq_service(cq, budget, ionic_notifyq_service, 759 NULL, NULL); 760 if (work_done) 761 ionic_intr_credits(idev->intr_ctrl, cq->bound_intr->index, 762 work_done, IONIC_INTR_CRED_RESET_COALESCE); 763 764 return work_done; 765 } 766 767 static bool ionic_adminq_service(struct ionic_cq *cq, 768 struct ionic_cq_info *cq_info) 769 { 770 struct ionic_admin_comp *comp = cq_info->cq_desc; 771 772 if (!color_match(comp->color, cq->done_color)) 773 return false; 774 775 ionic_q_service(cq->bound_q, cq_info, le16_to_cpu(comp->comp_index)); 776 777 return true; 778 } 779 780 static int ionic_adminq_napi(struct napi_struct *napi, int budget) 781 { 782 struct ionic_lif *lif = napi_to_cq(napi)->lif; 783 int n_work = 0; 784 int a_work = 0; 785 786 if (likely(lif->notifyqcq && lif->notifyqcq->flags & IONIC_QCQ_F_INITED)) 787 n_work = ionic_notifyq_clean(lif, budget); 788 a_work = ionic_napi(napi, budget, ionic_adminq_service, NULL, NULL); 789 790 return max(n_work, a_work); 791 } 792 793 void ionic_get_stats64(struct net_device *netdev, 794 struct rtnl_link_stats64 *ns) 795 { 796 struct ionic_lif *lif = netdev_priv(netdev); 797 struct ionic_lif_stats *ls; 798 799 memset(ns, 0, sizeof(*ns)); 800 ls = &lif->info->stats; 801 802 ns->rx_packets = le64_to_cpu(ls->rx_ucast_packets) + 803 le64_to_cpu(ls->rx_mcast_packets) + 804 le64_to_cpu(ls->rx_bcast_packets); 805 806 ns->tx_packets = le64_to_cpu(ls->tx_ucast_packets) + 807 le64_to_cpu(ls->tx_mcast_packets) + 808 le64_to_cpu(ls->tx_bcast_packets); 809 810 ns->rx_bytes = le64_to_cpu(ls->rx_ucast_bytes) + 811 le64_to_cpu(ls->rx_mcast_bytes) + 812 le64_to_cpu(ls->rx_bcast_bytes); 813 814 ns->tx_bytes = le64_to_cpu(ls->tx_ucast_bytes) + 815 le64_to_cpu(ls->tx_mcast_bytes) + 816 le64_to_cpu(ls->tx_bcast_bytes); 817 818 ns->rx_dropped = le64_to_cpu(ls->rx_ucast_drop_packets) + 819 le64_to_cpu(ls->rx_mcast_drop_packets) + 820 le64_to_cpu(ls->rx_bcast_drop_packets); 821 822 ns->tx_dropped = le64_to_cpu(ls->tx_ucast_drop_packets) + 823 le64_to_cpu(ls->tx_mcast_drop_packets) + 824 le64_to_cpu(ls->tx_bcast_drop_packets); 825 826 ns->multicast = le64_to_cpu(ls->rx_mcast_packets); 827 828 ns->rx_over_errors = le64_to_cpu(ls->rx_queue_empty); 829 830 ns->rx_missed_errors = le64_to_cpu(ls->rx_dma_error) + 831 le64_to_cpu(ls->rx_queue_disabled) + 832 le64_to_cpu(ls->rx_desc_fetch_error) + 833 le64_to_cpu(ls->rx_desc_data_error); 834 835 ns->tx_aborted_errors = le64_to_cpu(ls->tx_dma_error) + 836 le64_to_cpu(ls->tx_queue_disabled) + 837 le64_to_cpu(ls->tx_desc_fetch_error) + 838 le64_to_cpu(ls->tx_desc_data_error); 839 840 ns->rx_errors = ns->rx_over_errors + 841 ns->rx_missed_errors; 842 843 ns->tx_errors = ns->tx_aborted_errors; 844 } 845 846 static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr) 847 { 848 struct ionic_admin_ctx ctx = { 849 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 850 .cmd.rx_filter_add = { 851 .opcode = IONIC_CMD_RX_FILTER_ADD, 852 .lif_index = cpu_to_le16(lif->index), 853 .match = cpu_to_le16(IONIC_RX_FILTER_MATCH_MAC), 854 }, 855 }; 856 struct ionic_rx_filter *f; 857 int err; 858 859 /* don't bother if we already have it */ 860 spin_lock_bh(&lif->rx_filters.lock); 861 f = ionic_rx_filter_by_addr(lif, addr); 862 spin_unlock_bh(&lif->rx_filters.lock); 863 if (f) 864 return 0; 865 866 netdev_dbg(lif->netdev, "rx_filter add ADDR %pM (id %d)\n", addr, 867 ctx.comp.rx_filter_add.filter_id); 868 869 memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN); 870 err = ionic_adminq_post_wait(lif, &ctx); 871 if (err && err != -EEXIST) 872 return err; 873 874 return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx); 875 } 876 877 static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr) 878 { 879 struct ionic_admin_ctx ctx = { 880 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 881 .cmd.rx_filter_del = { 882 .opcode = IONIC_CMD_RX_FILTER_DEL, 883 .lif_index = cpu_to_le16(lif->index), 884 }, 885 }; 886 struct ionic_rx_filter *f; 887 int err; 888 889 spin_lock_bh(&lif->rx_filters.lock); 890 f = ionic_rx_filter_by_addr(lif, addr); 891 if (!f) { 892 spin_unlock_bh(&lif->rx_filters.lock); 893 return -ENOENT; 894 } 895 896 ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id); 897 ionic_rx_filter_free(lif, f); 898 spin_unlock_bh(&lif->rx_filters.lock); 899 900 err = ionic_adminq_post_wait(lif, &ctx); 901 if (err && err != -EEXIST) 902 return err; 903 904 netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n", addr, 905 ctx.cmd.rx_filter_del.filter_id); 906 907 return 0; 908 } 909 910 static int ionic_lif_addr(struct ionic_lif *lif, const u8 *addr, bool add) 911 { 912 struct ionic *ionic = lif->ionic; 913 struct ionic_deferred_work *work; 914 unsigned int nmfilters; 915 unsigned int nufilters; 916 917 if (add) { 918 /* Do we have space for this filter? We test the counters 919 * here before checking the need for deferral so that we 920 * can return an overflow error to the stack. 921 */ 922 nmfilters = le32_to_cpu(ionic->ident.lif.eth.max_mcast_filters); 923 nufilters = le32_to_cpu(ionic->ident.lif.eth.max_ucast_filters); 924 925 if ((is_multicast_ether_addr(addr) && lif->nmcast < nmfilters)) 926 lif->nmcast++; 927 else if (!is_multicast_ether_addr(addr) && 928 lif->nucast < nufilters) 929 lif->nucast++; 930 else 931 return -ENOSPC; 932 } else { 933 if (is_multicast_ether_addr(addr) && lif->nmcast) 934 lif->nmcast--; 935 else if (!is_multicast_ether_addr(addr) && lif->nucast) 936 lif->nucast--; 937 } 938 939 if (in_interrupt()) { 940 work = kzalloc(sizeof(*work), GFP_ATOMIC); 941 if (!work) { 942 netdev_err(lif->netdev, "%s OOM\n", __func__); 943 return -ENOMEM; 944 } 945 work->type = add ? IONIC_DW_TYPE_RX_ADDR_ADD : 946 IONIC_DW_TYPE_RX_ADDR_DEL; 947 memcpy(work->addr, addr, ETH_ALEN); 948 netdev_dbg(lif->netdev, "deferred: rx_filter %s %pM\n", 949 add ? "add" : "del", addr); 950 ionic_lif_deferred_enqueue(&lif->deferred, work); 951 } else { 952 netdev_dbg(lif->netdev, "rx_filter %s %pM\n", 953 add ? "add" : "del", addr); 954 if (add) 955 return ionic_lif_addr_add(lif, addr); 956 else 957 return ionic_lif_addr_del(lif, addr); 958 } 959 960 return 0; 961 } 962 963 static int ionic_addr_add(struct net_device *netdev, const u8 *addr) 964 { 965 return ionic_lif_addr(netdev_priv(netdev), addr, true); 966 } 967 968 static int ionic_addr_del(struct net_device *netdev, const u8 *addr) 969 { 970 return ionic_lif_addr(netdev_priv(netdev), addr, false); 971 } 972 973 static void ionic_lif_rx_mode(struct ionic_lif *lif, unsigned int rx_mode) 974 { 975 struct ionic_admin_ctx ctx = { 976 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 977 .cmd.rx_mode_set = { 978 .opcode = IONIC_CMD_RX_MODE_SET, 979 .lif_index = cpu_to_le16(lif->index), 980 .rx_mode = cpu_to_le16(rx_mode), 981 }, 982 }; 983 char buf[128]; 984 int err; 985 int i; 986 #define REMAIN(__x) (sizeof(buf) - (__x)) 987 988 i = scnprintf(buf, sizeof(buf), "rx_mode 0x%04x -> 0x%04x:", 989 lif->rx_mode, rx_mode); 990 if (rx_mode & IONIC_RX_MODE_F_UNICAST) 991 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_UNICAST"); 992 if (rx_mode & IONIC_RX_MODE_F_MULTICAST) 993 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_MULTICAST"); 994 if (rx_mode & IONIC_RX_MODE_F_BROADCAST) 995 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_BROADCAST"); 996 if (rx_mode & IONIC_RX_MODE_F_PROMISC) 997 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_PROMISC"); 998 if (rx_mode & IONIC_RX_MODE_F_ALLMULTI) 999 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_ALLMULTI"); 1000 netdev_dbg(lif->netdev, "lif%d %s\n", lif->index, buf); 1001 1002 err = ionic_adminq_post_wait(lif, &ctx); 1003 if (err) 1004 netdev_warn(lif->netdev, "set rx_mode 0x%04x failed: %d\n", 1005 rx_mode, err); 1006 else 1007 lif->rx_mode = rx_mode; 1008 } 1009 1010 static void _ionic_lif_rx_mode(struct ionic_lif *lif, unsigned int rx_mode) 1011 { 1012 struct ionic_deferred_work *work; 1013 1014 if (in_interrupt()) { 1015 work = kzalloc(sizeof(*work), GFP_ATOMIC); 1016 if (!work) { 1017 netdev_err(lif->netdev, "%s OOM\n", __func__); 1018 return; 1019 } 1020 work->type = IONIC_DW_TYPE_RX_MODE; 1021 work->rx_mode = rx_mode; 1022 netdev_dbg(lif->netdev, "deferred: rx_mode\n"); 1023 ionic_lif_deferred_enqueue(&lif->deferred, work); 1024 } else { 1025 ionic_lif_rx_mode(lif, rx_mode); 1026 } 1027 } 1028 1029 static void ionic_set_rx_mode(struct net_device *netdev) 1030 { 1031 struct ionic_lif *lif = netdev_priv(netdev); 1032 struct ionic_identity *ident; 1033 unsigned int nfilters; 1034 unsigned int rx_mode; 1035 1036 ident = &lif->ionic->ident; 1037 1038 rx_mode = IONIC_RX_MODE_F_UNICAST; 1039 rx_mode |= (netdev->flags & IFF_MULTICAST) ? IONIC_RX_MODE_F_MULTICAST : 0; 1040 rx_mode |= (netdev->flags & IFF_BROADCAST) ? IONIC_RX_MODE_F_BROADCAST : 0; 1041 rx_mode |= (netdev->flags & IFF_PROMISC) ? IONIC_RX_MODE_F_PROMISC : 0; 1042 rx_mode |= (netdev->flags & IFF_ALLMULTI) ? IONIC_RX_MODE_F_ALLMULTI : 0; 1043 1044 /* sync unicast addresses 1045 * next check to see if we're in an overflow state 1046 * if so, we track that we overflowed and enable NIC PROMISC 1047 * else if the overflow is set and not needed 1048 * we remove our overflow flag and check the netdev flags 1049 * to see if we can disable NIC PROMISC 1050 */ 1051 __dev_uc_sync(netdev, ionic_addr_add, ionic_addr_del); 1052 nfilters = le32_to_cpu(ident->lif.eth.max_ucast_filters); 1053 if (netdev_uc_count(netdev) + 1 > nfilters) { 1054 rx_mode |= IONIC_RX_MODE_F_PROMISC; 1055 lif->uc_overflow = true; 1056 } else if (lif->uc_overflow) { 1057 lif->uc_overflow = false; 1058 if (!(netdev->flags & IFF_PROMISC)) 1059 rx_mode &= ~IONIC_RX_MODE_F_PROMISC; 1060 } 1061 1062 /* same for multicast */ 1063 __dev_mc_sync(netdev, ionic_addr_add, ionic_addr_del); 1064 nfilters = le32_to_cpu(ident->lif.eth.max_mcast_filters); 1065 if (netdev_mc_count(netdev) > nfilters) { 1066 rx_mode |= IONIC_RX_MODE_F_ALLMULTI; 1067 lif->mc_overflow = true; 1068 } else if (lif->mc_overflow) { 1069 lif->mc_overflow = false; 1070 if (!(netdev->flags & IFF_ALLMULTI)) 1071 rx_mode &= ~IONIC_RX_MODE_F_ALLMULTI; 1072 } 1073 1074 if (lif->rx_mode != rx_mode) 1075 _ionic_lif_rx_mode(lif, rx_mode); 1076 } 1077 1078 static __le64 ionic_netdev_features_to_nic(netdev_features_t features) 1079 { 1080 u64 wanted = 0; 1081 1082 if (features & NETIF_F_HW_VLAN_CTAG_TX) 1083 wanted |= IONIC_ETH_HW_VLAN_TX_TAG; 1084 if (features & NETIF_F_HW_VLAN_CTAG_RX) 1085 wanted |= IONIC_ETH_HW_VLAN_RX_STRIP; 1086 if (features & NETIF_F_HW_VLAN_CTAG_FILTER) 1087 wanted |= IONIC_ETH_HW_VLAN_RX_FILTER; 1088 if (features & NETIF_F_RXHASH) 1089 wanted |= IONIC_ETH_HW_RX_HASH; 1090 if (features & NETIF_F_RXCSUM) 1091 wanted |= IONIC_ETH_HW_RX_CSUM; 1092 if (features & NETIF_F_SG) 1093 wanted |= IONIC_ETH_HW_TX_SG; 1094 if (features & NETIF_F_HW_CSUM) 1095 wanted |= IONIC_ETH_HW_TX_CSUM; 1096 if (features & NETIF_F_TSO) 1097 wanted |= IONIC_ETH_HW_TSO; 1098 if (features & NETIF_F_TSO6) 1099 wanted |= IONIC_ETH_HW_TSO_IPV6; 1100 if (features & NETIF_F_TSO_ECN) 1101 wanted |= IONIC_ETH_HW_TSO_ECN; 1102 if (features & NETIF_F_GSO_GRE) 1103 wanted |= IONIC_ETH_HW_TSO_GRE; 1104 if (features & NETIF_F_GSO_GRE_CSUM) 1105 wanted |= IONIC_ETH_HW_TSO_GRE_CSUM; 1106 if (features & NETIF_F_GSO_IPXIP4) 1107 wanted |= IONIC_ETH_HW_TSO_IPXIP4; 1108 if (features & NETIF_F_GSO_IPXIP6) 1109 wanted |= IONIC_ETH_HW_TSO_IPXIP6; 1110 if (features & NETIF_F_GSO_UDP_TUNNEL) 1111 wanted |= IONIC_ETH_HW_TSO_UDP; 1112 if (features & NETIF_F_GSO_UDP_TUNNEL_CSUM) 1113 wanted |= IONIC_ETH_HW_TSO_UDP_CSUM; 1114 1115 return cpu_to_le64(wanted); 1116 } 1117 1118 static int ionic_set_nic_features(struct ionic_lif *lif, 1119 netdev_features_t features) 1120 { 1121 struct device *dev = lif->ionic->dev; 1122 struct ionic_admin_ctx ctx = { 1123 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 1124 .cmd.lif_setattr = { 1125 .opcode = IONIC_CMD_LIF_SETATTR, 1126 .index = cpu_to_le16(lif->index), 1127 .attr = IONIC_LIF_ATTR_FEATURES, 1128 }, 1129 }; 1130 u64 vlan_flags = IONIC_ETH_HW_VLAN_TX_TAG | 1131 IONIC_ETH_HW_VLAN_RX_STRIP | 1132 IONIC_ETH_HW_VLAN_RX_FILTER; 1133 u64 old_hw_features; 1134 int err; 1135 1136 ctx.cmd.lif_setattr.features = ionic_netdev_features_to_nic(features); 1137 err = ionic_adminq_post_wait(lif, &ctx); 1138 if (err) 1139 return err; 1140 1141 old_hw_features = lif->hw_features; 1142 lif->hw_features = le64_to_cpu(ctx.cmd.lif_setattr.features & 1143 ctx.comp.lif_setattr.features); 1144 1145 if ((old_hw_features ^ lif->hw_features) & IONIC_ETH_HW_RX_HASH) 1146 ionic_lif_rss_config(lif, lif->rss_types, NULL, NULL); 1147 1148 if ((vlan_flags & features) && 1149 !(vlan_flags & le64_to_cpu(ctx.comp.lif_setattr.features))) 1150 dev_info_once(lif->ionic->dev, "NIC is not supporting vlan offload, likely in SmartNIC mode\n"); 1151 1152 if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG) 1153 dev_dbg(dev, "feature ETH_HW_VLAN_TX_TAG\n"); 1154 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP) 1155 dev_dbg(dev, "feature ETH_HW_VLAN_RX_STRIP\n"); 1156 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER) 1157 dev_dbg(dev, "feature ETH_HW_VLAN_RX_FILTER\n"); 1158 if (lif->hw_features & IONIC_ETH_HW_RX_HASH) 1159 dev_dbg(dev, "feature ETH_HW_RX_HASH\n"); 1160 if (lif->hw_features & IONIC_ETH_HW_TX_SG) 1161 dev_dbg(dev, "feature ETH_HW_TX_SG\n"); 1162 if (lif->hw_features & IONIC_ETH_HW_TX_CSUM) 1163 dev_dbg(dev, "feature ETH_HW_TX_CSUM\n"); 1164 if (lif->hw_features & IONIC_ETH_HW_RX_CSUM) 1165 dev_dbg(dev, "feature ETH_HW_RX_CSUM\n"); 1166 if (lif->hw_features & IONIC_ETH_HW_TSO) 1167 dev_dbg(dev, "feature ETH_HW_TSO\n"); 1168 if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6) 1169 dev_dbg(dev, "feature ETH_HW_TSO_IPV6\n"); 1170 if (lif->hw_features & IONIC_ETH_HW_TSO_ECN) 1171 dev_dbg(dev, "feature ETH_HW_TSO_ECN\n"); 1172 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE) 1173 dev_dbg(dev, "feature ETH_HW_TSO_GRE\n"); 1174 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM) 1175 dev_dbg(dev, "feature ETH_HW_TSO_GRE_CSUM\n"); 1176 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4) 1177 dev_dbg(dev, "feature ETH_HW_TSO_IPXIP4\n"); 1178 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6) 1179 dev_dbg(dev, "feature ETH_HW_TSO_IPXIP6\n"); 1180 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP) 1181 dev_dbg(dev, "feature ETH_HW_TSO_UDP\n"); 1182 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM) 1183 dev_dbg(dev, "feature ETH_HW_TSO_UDP_CSUM\n"); 1184 1185 return 0; 1186 } 1187 1188 static int ionic_init_nic_features(struct ionic_lif *lif) 1189 { 1190 struct net_device *netdev = lif->netdev; 1191 netdev_features_t features; 1192 int err; 1193 1194 /* set up what we expect to support by default */ 1195 features = NETIF_F_HW_VLAN_CTAG_TX | 1196 NETIF_F_HW_VLAN_CTAG_RX | 1197 NETIF_F_HW_VLAN_CTAG_FILTER | 1198 NETIF_F_RXHASH | 1199 NETIF_F_SG | 1200 NETIF_F_HW_CSUM | 1201 NETIF_F_RXCSUM | 1202 NETIF_F_TSO | 1203 NETIF_F_TSO6 | 1204 NETIF_F_TSO_ECN; 1205 1206 err = ionic_set_nic_features(lif, features); 1207 if (err) 1208 return err; 1209 1210 /* tell the netdev what we actually can support */ 1211 netdev->features |= NETIF_F_HIGHDMA; 1212 1213 if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG) 1214 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; 1215 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP) 1216 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; 1217 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER) 1218 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; 1219 if (lif->hw_features & IONIC_ETH_HW_RX_HASH) 1220 netdev->hw_features |= NETIF_F_RXHASH; 1221 if (lif->hw_features & IONIC_ETH_HW_TX_SG) 1222 netdev->hw_features |= NETIF_F_SG; 1223 1224 if (lif->hw_features & IONIC_ETH_HW_TX_CSUM) 1225 netdev->hw_enc_features |= NETIF_F_HW_CSUM; 1226 if (lif->hw_features & IONIC_ETH_HW_RX_CSUM) 1227 netdev->hw_enc_features |= NETIF_F_RXCSUM; 1228 if (lif->hw_features & IONIC_ETH_HW_TSO) 1229 netdev->hw_enc_features |= NETIF_F_TSO; 1230 if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6) 1231 netdev->hw_enc_features |= NETIF_F_TSO6; 1232 if (lif->hw_features & IONIC_ETH_HW_TSO_ECN) 1233 netdev->hw_enc_features |= NETIF_F_TSO_ECN; 1234 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE) 1235 netdev->hw_enc_features |= NETIF_F_GSO_GRE; 1236 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM) 1237 netdev->hw_enc_features |= NETIF_F_GSO_GRE_CSUM; 1238 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4) 1239 netdev->hw_enc_features |= NETIF_F_GSO_IPXIP4; 1240 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6) 1241 netdev->hw_enc_features |= NETIF_F_GSO_IPXIP6; 1242 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP) 1243 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL; 1244 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM) 1245 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM; 1246 1247 netdev->hw_features |= netdev->hw_enc_features; 1248 netdev->features |= netdev->hw_features; 1249 netdev->vlan_features |= netdev->features & ~NETIF_F_VLAN_FEATURES; 1250 1251 netdev->priv_flags |= IFF_UNICAST_FLT | 1252 IFF_LIVE_ADDR_CHANGE; 1253 1254 return 0; 1255 } 1256 1257 static int ionic_set_features(struct net_device *netdev, 1258 netdev_features_t features) 1259 { 1260 struct ionic_lif *lif = netdev_priv(netdev); 1261 int err; 1262 1263 netdev_dbg(netdev, "%s: lif->features=0x%08llx new_features=0x%08llx\n", 1264 __func__, (u64)lif->netdev->features, (u64)features); 1265 1266 err = ionic_set_nic_features(lif, features); 1267 1268 return err; 1269 } 1270 1271 static int ionic_set_mac_address(struct net_device *netdev, void *sa) 1272 { 1273 struct sockaddr *addr = sa; 1274 u8 *mac; 1275 int err; 1276 1277 mac = (u8 *)addr->sa_data; 1278 if (ether_addr_equal(netdev->dev_addr, mac)) 1279 return 0; 1280 1281 err = eth_prepare_mac_addr_change(netdev, addr); 1282 if (err) 1283 return err; 1284 1285 if (!is_zero_ether_addr(netdev->dev_addr)) { 1286 netdev_info(netdev, "deleting mac addr %pM\n", 1287 netdev->dev_addr); 1288 ionic_addr_del(netdev, netdev->dev_addr); 1289 } 1290 1291 eth_commit_mac_addr_change(netdev, addr); 1292 netdev_info(netdev, "updating mac addr %pM\n", mac); 1293 1294 return ionic_addr_add(netdev, mac); 1295 } 1296 1297 static int ionic_change_mtu(struct net_device *netdev, int new_mtu) 1298 { 1299 struct ionic_lif *lif = netdev_priv(netdev); 1300 struct ionic_admin_ctx ctx = { 1301 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 1302 .cmd.lif_setattr = { 1303 .opcode = IONIC_CMD_LIF_SETATTR, 1304 .index = cpu_to_le16(lif->index), 1305 .attr = IONIC_LIF_ATTR_MTU, 1306 .mtu = cpu_to_le32(new_mtu), 1307 }, 1308 }; 1309 int err; 1310 1311 err = ionic_adminq_post_wait(lif, &ctx); 1312 if (err) 1313 return err; 1314 1315 netdev->mtu = new_mtu; 1316 err = ionic_reset_queues(lif); 1317 1318 return err; 1319 } 1320 1321 static void ionic_tx_timeout_work(struct work_struct *ws) 1322 { 1323 struct ionic_lif *lif = container_of(ws, struct ionic_lif, tx_timeout_work); 1324 1325 netdev_info(lif->netdev, "Tx Timeout recovery\n"); 1326 1327 rtnl_lock(); 1328 ionic_reset_queues(lif); 1329 rtnl_unlock(); 1330 } 1331 1332 static void ionic_tx_timeout(struct net_device *netdev, unsigned int txqueue) 1333 { 1334 struct ionic_lif *lif = netdev_priv(netdev); 1335 1336 schedule_work(&lif->tx_timeout_work); 1337 } 1338 1339 static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, 1340 u16 vid) 1341 { 1342 struct ionic_lif *lif = netdev_priv(netdev); 1343 struct ionic_admin_ctx ctx = { 1344 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 1345 .cmd.rx_filter_add = { 1346 .opcode = IONIC_CMD_RX_FILTER_ADD, 1347 .lif_index = cpu_to_le16(lif->index), 1348 .match = cpu_to_le16(IONIC_RX_FILTER_MATCH_VLAN), 1349 .vlan.vlan = cpu_to_le16(vid), 1350 }, 1351 }; 1352 int err; 1353 1354 err = ionic_adminq_post_wait(lif, &ctx); 1355 if (err) 1356 return err; 1357 1358 netdev_dbg(netdev, "rx_filter add VLAN %d (id %d)\n", vid, 1359 ctx.comp.rx_filter_add.filter_id); 1360 1361 return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx); 1362 } 1363 1364 static int ionic_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, 1365 u16 vid) 1366 { 1367 struct ionic_lif *lif = netdev_priv(netdev); 1368 struct ionic_admin_ctx ctx = { 1369 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 1370 .cmd.rx_filter_del = { 1371 .opcode = IONIC_CMD_RX_FILTER_DEL, 1372 .lif_index = cpu_to_le16(lif->index), 1373 }, 1374 }; 1375 struct ionic_rx_filter *f; 1376 1377 spin_lock_bh(&lif->rx_filters.lock); 1378 1379 f = ionic_rx_filter_by_vlan(lif, vid); 1380 if (!f) { 1381 spin_unlock_bh(&lif->rx_filters.lock); 1382 return -ENOENT; 1383 } 1384 1385 netdev_dbg(netdev, "rx_filter del VLAN %d (id %d)\n", vid, 1386 le32_to_cpu(ctx.cmd.rx_filter_del.filter_id)); 1387 1388 ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id); 1389 ionic_rx_filter_free(lif, f); 1390 spin_unlock_bh(&lif->rx_filters.lock); 1391 1392 return ionic_adminq_post_wait(lif, &ctx); 1393 } 1394 1395 int ionic_lif_rss_config(struct ionic_lif *lif, const u16 types, 1396 const u8 *key, const u32 *indir) 1397 { 1398 struct ionic_admin_ctx ctx = { 1399 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 1400 .cmd.lif_setattr = { 1401 .opcode = IONIC_CMD_LIF_SETATTR, 1402 .attr = IONIC_LIF_ATTR_RSS, 1403 .rss.addr = cpu_to_le64(lif->rss_ind_tbl_pa), 1404 }, 1405 }; 1406 unsigned int i, tbl_sz; 1407 1408 if (lif->hw_features & IONIC_ETH_HW_RX_HASH) { 1409 lif->rss_types = types; 1410 ctx.cmd.lif_setattr.rss.types = cpu_to_le16(types); 1411 } 1412 1413 if (key) 1414 memcpy(lif->rss_hash_key, key, IONIC_RSS_HASH_KEY_SIZE); 1415 1416 if (indir) { 1417 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz); 1418 for (i = 0; i < tbl_sz; i++) 1419 lif->rss_ind_tbl[i] = indir[i]; 1420 } 1421 1422 memcpy(ctx.cmd.lif_setattr.rss.key, lif->rss_hash_key, 1423 IONIC_RSS_HASH_KEY_SIZE); 1424 1425 return ionic_adminq_post_wait(lif, &ctx); 1426 } 1427 1428 static int ionic_lif_rss_init(struct ionic_lif *lif) 1429 { 1430 unsigned int tbl_sz; 1431 unsigned int i; 1432 1433 lif->rss_types = IONIC_RSS_TYPE_IPV4 | 1434 IONIC_RSS_TYPE_IPV4_TCP | 1435 IONIC_RSS_TYPE_IPV4_UDP | 1436 IONIC_RSS_TYPE_IPV6 | 1437 IONIC_RSS_TYPE_IPV6_TCP | 1438 IONIC_RSS_TYPE_IPV6_UDP; 1439 1440 /* Fill indirection table with 'default' values */ 1441 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz); 1442 for (i = 0; i < tbl_sz; i++) 1443 lif->rss_ind_tbl[i] = ethtool_rxfh_indir_default(i, lif->nxqs); 1444 1445 return ionic_lif_rss_config(lif, lif->rss_types, NULL, NULL); 1446 } 1447 1448 static void ionic_lif_rss_deinit(struct ionic_lif *lif) 1449 { 1450 int tbl_sz; 1451 1452 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz); 1453 memset(lif->rss_ind_tbl, 0, tbl_sz); 1454 memset(lif->rss_hash_key, 0, IONIC_RSS_HASH_KEY_SIZE); 1455 1456 ionic_lif_rss_config(lif, 0x0, NULL, NULL); 1457 } 1458 1459 static void ionic_txrx_disable(struct ionic_lif *lif) 1460 { 1461 unsigned int i; 1462 int err; 1463 1464 if (lif->txqcqs) { 1465 for (i = 0; i < lif->nxqs; i++) { 1466 err = ionic_qcq_disable(lif->txqcqs[i].qcq); 1467 if (err == -ETIMEDOUT) 1468 break; 1469 } 1470 } 1471 1472 if (lif->rxqcqs) { 1473 for (i = 0; i < lif->nxqs; i++) { 1474 err = ionic_qcq_disable(lif->rxqcqs[i].qcq); 1475 if (err == -ETIMEDOUT) 1476 break; 1477 } 1478 } 1479 } 1480 1481 static void ionic_txrx_deinit(struct ionic_lif *lif) 1482 { 1483 unsigned int i; 1484 1485 if (lif->txqcqs) { 1486 for (i = 0; i < lif->nxqs; i++) { 1487 ionic_lif_qcq_deinit(lif, lif->txqcqs[i].qcq); 1488 ionic_tx_flush(&lif->txqcqs[i].qcq->cq); 1489 ionic_tx_empty(&lif->txqcqs[i].qcq->q); 1490 } 1491 } 1492 1493 if (lif->rxqcqs) { 1494 for (i = 0; i < lif->nxqs; i++) { 1495 ionic_lif_qcq_deinit(lif, lif->rxqcqs[i].qcq); 1496 ionic_rx_flush(&lif->rxqcqs[i].qcq->cq); 1497 ionic_rx_empty(&lif->rxqcqs[i].qcq->q); 1498 } 1499 } 1500 lif->rx_mode = 0; 1501 } 1502 1503 static void ionic_txrx_free(struct ionic_lif *lif) 1504 { 1505 unsigned int i; 1506 1507 if (lif->txqcqs) { 1508 for (i = 0; i < lif->nxqs; i++) { 1509 ionic_qcq_free(lif, lif->txqcqs[i].qcq); 1510 lif->txqcqs[i].qcq = NULL; 1511 } 1512 } 1513 1514 if (lif->rxqcqs) { 1515 for (i = 0; i < lif->nxqs; i++) { 1516 ionic_qcq_free(lif, lif->rxqcqs[i].qcq); 1517 lif->rxqcqs[i].qcq = NULL; 1518 } 1519 } 1520 } 1521 1522 static int ionic_txrx_alloc(struct ionic_lif *lif) 1523 { 1524 unsigned int sg_desc_sz; 1525 unsigned int flags; 1526 unsigned int i; 1527 int err = 0; 1528 1529 if (lif->qtype_info[IONIC_QTYPE_TXQ].version >= 1 && 1530 lif->qtype_info[IONIC_QTYPE_TXQ].sg_desc_sz == 1531 sizeof(struct ionic_txq_sg_desc_v1)) 1532 sg_desc_sz = sizeof(struct ionic_txq_sg_desc_v1); 1533 else 1534 sg_desc_sz = sizeof(struct ionic_txq_sg_desc); 1535 1536 flags = IONIC_QCQ_F_TX_STATS | IONIC_QCQ_F_SG; 1537 for (i = 0; i < lif->nxqs; i++) { 1538 err = ionic_qcq_alloc(lif, IONIC_QTYPE_TXQ, i, "tx", flags, 1539 lif->ntxq_descs, 1540 sizeof(struct ionic_txq_desc), 1541 sizeof(struct ionic_txq_comp), 1542 sg_desc_sz, 1543 lif->kern_pid, &lif->txqcqs[i].qcq); 1544 if (err) 1545 goto err_out; 1546 1547 lif->txqcqs[i].qcq->stats = lif->txqcqs[i].stats; 1548 ionic_debugfs_add_qcq(lif, lif->txqcqs[i].qcq); 1549 } 1550 1551 flags = IONIC_QCQ_F_RX_STATS | IONIC_QCQ_F_SG | IONIC_QCQ_F_INTR; 1552 for (i = 0; i < lif->nxqs; i++) { 1553 err = ionic_qcq_alloc(lif, IONIC_QTYPE_RXQ, i, "rx", flags, 1554 lif->nrxq_descs, 1555 sizeof(struct ionic_rxq_desc), 1556 sizeof(struct ionic_rxq_comp), 1557 sizeof(struct ionic_rxq_sg_desc), 1558 lif->kern_pid, &lif->rxqcqs[i].qcq); 1559 if (err) 1560 goto err_out; 1561 1562 lif->rxqcqs[i].qcq->stats = lif->rxqcqs[i].stats; 1563 1564 ionic_intr_coal_init(lif->ionic->idev.intr_ctrl, 1565 lif->rxqcqs[i].qcq->intr.index, 1566 lif->rx_coalesce_hw); 1567 ionic_link_qcq_interrupts(lif->rxqcqs[i].qcq, 1568 lif->txqcqs[i].qcq); 1569 ionic_debugfs_add_qcq(lif, lif->rxqcqs[i].qcq); 1570 } 1571 1572 return 0; 1573 1574 err_out: 1575 ionic_txrx_free(lif); 1576 1577 return err; 1578 } 1579 1580 static int ionic_txrx_init(struct ionic_lif *lif) 1581 { 1582 unsigned int i; 1583 int err; 1584 1585 for (i = 0; i < lif->nxqs; i++) { 1586 err = ionic_lif_txq_init(lif, lif->txqcqs[i].qcq); 1587 if (err) 1588 goto err_out; 1589 1590 err = ionic_lif_rxq_init(lif, lif->rxqcqs[i].qcq); 1591 if (err) { 1592 ionic_lif_qcq_deinit(lif, lif->txqcqs[i].qcq); 1593 goto err_out; 1594 } 1595 } 1596 1597 if (lif->netdev->features & NETIF_F_RXHASH) 1598 ionic_lif_rss_init(lif); 1599 1600 ionic_set_rx_mode(lif->netdev); 1601 1602 return 0; 1603 1604 err_out: 1605 while (i--) { 1606 ionic_lif_qcq_deinit(lif, lif->txqcqs[i].qcq); 1607 ionic_lif_qcq_deinit(lif, lif->rxqcqs[i].qcq); 1608 } 1609 1610 return err; 1611 } 1612 1613 static int ionic_txrx_enable(struct ionic_lif *lif) 1614 { 1615 int i, err; 1616 1617 for (i = 0; i < lif->nxqs; i++) { 1618 ionic_rx_fill(&lif->rxqcqs[i].qcq->q); 1619 err = ionic_qcq_enable(lif->rxqcqs[i].qcq); 1620 if (err) 1621 goto err_out; 1622 1623 err = ionic_qcq_enable(lif->txqcqs[i].qcq); 1624 if (err) { 1625 if (err != -ETIMEDOUT) 1626 ionic_qcq_disable(lif->rxqcqs[i].qcq); 1627 goto err_out; 1628 } 1629 } 1630 1631 return 0; 1632 1633 err_out: 1634 while (i--) { 1635 err = ionic_qcq_disable(lif->txqcqs[i].qcq); 1636 if (err == -ETIMEDOUT) 1637 break; 1638 err = ionic_qcq_disable(lif->rxqcqs[i].qcq); 1639 if (err == -ETIMEDOUT) 1640 break; 1641 } 1642 1643 return err; 1644 } 1645 1646 static int ionic_start_queues(struct ionic_lif *lif) 1647 { 1648 int err; 1649 1650 if (test_and_set_bit(IONIC_LIF_F_UP, lif->state)) 1651 return 0; 1652 1653 err = ionic_txrx_enable(lif); 1654 if (err) { 1655 clear_bit(IONIC_LIF_F_UP, lif->state); 1656 return err; 1657 } 1658 netif_tx_wake_all_queues(lif->netdev); 1659 1660 return 0; 1661 } 1662 1663 int ionic_open(struct net_device *netdev) 1664 { 1665 struct ionic_lif *lif = netdev_priv(netdev); 1666 int err; 1667 1668 err = ionic_txrx_alloc(lif); 1669 if (err) 1670 return err; 1671 1672 err = ionic_txrx_init(lif); 1673 if (err) 1674 goto err_out; 1675 1676 /* don't start the queues until we have link */ 1677 if (netif_carrier_ok(netdev)) { 1678 err = ionic_start_queues(lif); 1679 if (err) 1680 goto err_txrx_deinit; 1681 } 1682 1683 return 0; 1684 1685 err_txrx_deinit: 1686 ionic_txrx_deinit(lif); 1687 err_out: 1688 ionic_txrx_free(lif); 1689 return err; 1690 } 1691 1692 static void ionic_stop_queues(struct ionic_lif *lif) 1693 { 1694 if (!test_and_clear_bit(IONIC_LIF_F_UP, lif->state)) 1695 return; 1696 1697 netif_tx_disable(lif->netdev); 1698 ionic_txrx_disable(lif); 1699 } 1700 1701 int ionic_stop(struct net_device *netdev) 1702 { 1703 struct ionic_lif *lif = netdev_priv(netdev); 1704 1705 if (test_bit(IONIC_LIF_F_FW_RESET, lif->state)) 1706 return 0; 1707 1708 ionic_stop_queues(lif); 1709 ionic_txrx_deinit(lif); 1710 ionic_txrx_free(lif); 1711 1712 return 0; 1713 } 1714 1715 static int ionic_get_vf_config(struct net_device *netdev, 1716 int vf, struct ifla_vf_info *ivf) 1717 { 1718 struct ionic_lif *lif = netdev_priv(netdev); 1719 struct ionic *ionic = lif->ionic; 1720 int ret = 0; 1721 1722 if (!netif_device_present(netdev)) 1723 return -EBUSY; 1724 1725 down_read(&ionic->vf_op_lock); 1726 1727 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1728 ret = -EINVAL; 1729 } else { 1730 ivf->vf = vf; 1731 ivf->vlan = ionic->vfs[vf].vlanid; 1732 ivf->qos = 0; 1733 ivf->spoofchk = ionic->vfs[vf].spoofchk; 1734 ivf->linkstate = ionic->vfs[vf].linkstate; 1735 ivf->max_tx_rate = ionic->vfs[vf].maxrate; 1736 ivf->trusted = ionic->vfs[vf].trusted; 1737 ether_addr_copy(ivf->mac, ionic->vfs[vf].macaddr); 1738 } 1739 1740 up_read(&ionic->vf_op_lock); 1741 return ret; 1742 } 1743 1744 static int ionic_get_vf_stats(struct net_device *netdev, int vf, 1745 struct ifla_vf_stats *vf_stats) 1746 { 1747 struct ionic_lif *lif = netdev_priv(netdev); 1748 struct ionic *ionic = lif->ionic; 1749 struct ionic_lif_stats *vs; 1750 int ret = 0; 1751 1752 if (!netif_device_present(netdev)) 1753 return -EBUSY; 1754 1755 down_read(&ionic->vf_op_lock); 1756 1757 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1758 ret = -EINVAL; 1759 } else { 1760 memset(vf_stats, 0, sizeof(*vf_stats)); 1761 vs = &ionic->vfs[vf].stats; 1762 1763 vf_stats->rx_packets = le64_to_cpu(vs->rx_ucast_packets); 1764 vf_stats->tx_packets = le64_to_cpu(vs->tx_ucast_packets); 1765 vf_stats->rx_bytes = le64_to_cpu(vs->rx_ucast_bytes); 1766 vf_stats->tx_bytes = le64_to_cpu(vs->tx_ucast_bytes); 1767 vf_stats->broadcast = le64_to_cpu(vs->rx_bcast_packets); 1768 vf_stats->multicast = le64_to_cpu(vs->rx_mcast_packets); 1769 vf_stats->rx_dropped = le64_to_cpu(vs->rx_ucast_drop_packets) + 1770 le64_to_cpu(vs->rx_mcast_drop_packets) + 1771 le64_to_cpu(vs->rx_bcast_drop_packets); 1772 vf_stats->tx_dropped = le64_to_cpu(vs->tx_ucast_drop_packets) + 1773 le64_to_cpu(vs->tx_mcast_drop_packets) + 1774 le64_to_cpu(vs->tx_bcast_drop_packets); 1775 } 1776 1777 up_read(&ionic->vf_op_lock); 1778 return ret; 1779 } 1780 1781 static int ionic_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) 1782 { 1783 struct ionic_lif *lif = netdev_priv(netdev); 1784 struct ionic *ionic = lif->ionic; 1785 int ret; 1786 1787 if (!(is_zero_ether_addr(mac) || is_valid_ether_addr(mac))) 1788 return -EINVAL; 1789 1790 if (!netif_device_present(netdev)) 1791 return -EBUSY; 1792 1793 down_write(&ionic->vf_op_lock); 1794 1795 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1796 ret = -EINVAL; 1797 } else { 1798 ret = ionic_set_vf_config(ionic, vf, IONIC_VF_ATTR_MAC, mac); 1799 if (!ret) 1800 ether_addr_copy(ionic->vfs[vf].macaddr, mac); 1801 } 1802 1803 up_write(&ionic->vf_op_lock); 1804 return ret; 1805 } 1806 1807 static int ionic_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, 1808 u8 qos, __be16 proto) 1809 { 1810 struct ionic_lif *lif = netdev_priv(netdev); 1811 struct ionic *ionic = lif->ionic; 1812 int ret; 1813 1814 /* until someday when we support qos */ 1815 if (qos) 1816 return -EINVAL; 1817 1818 if (vlan > 4095) 1819 return -EINVAL; 1820 1821 if (proto != htons(ETH_P_8021Q)) 1822 return -EPROTONOSUPPORT; 1823 1824 if (!netif_device_present(netdev)) 1825 return -EBUSY; 1826 1827 down_write(&ionic->vf_op_lock); 1828 1829 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1830 ret = -EINVAL; 1831 } else { 1832 ret = ionic_set_vf_config(ionic, vf, 1833 IONIC_VF_ATTR_VLAN, (u8 *)&vlan); 1834 if (!ret) 1835 ionic->vfs[vf].vlanid = vlan; 1836 } 1837 1838 up_write(&ionic->vf_op_lock); 1839 return ret; 1840 } 1841 1842 static int ionic_set_vf_rate(struct net_device *netdev, int vf, 1843 int tx_min, int tx_max) 1844 { 1845 struct ionic_lif *lif = netdev_priv(netdev); 1846 struct ionic *ionic = lif->ionic; 1847 int ret; 1848 1849 /* setting the min just seems silly */ 1850 if (tx_min) 1851 return -EINVAL; 1852 1853 if (!netif_device_present(netdev)) 1854 return -EBUSY; 1855 1856 down_write(&ionic->vf_op_lock); 1857 1858 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1859 ret = -EINVAL; 1860 } else { 1861 ret = ionic_set_vf_config(ionic, vf, 1862 IONIC_VF_ATTR_RATE, (u8 *)&tx_max); 1863 if (!ret) 1864 lif->ionic->vfs[vf].maxrate = tx_max; 1865 } 1866 1867 up_write(&ionic->vf_op_lock); 1868 return ret; 1869 } 1870 1871 static int ionic_set_vf_spoofchk(struct net_device *netdev, int vf, bool set) 1872 { 1873 struct ionic_lif *lif = netdev_priv(netdev); 1874 struct ionic *ionic = lif->ionic; 1875 u8 data = set; /* convert to u8 for config */ 1876 int ret; 1877 1878 if (!netif_device_present(netdev)) 1879 return -EBUSY; 1880 1881 down_write(&ionic->vf_op_lock); 1882 1883 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1884 ret = -EINVAL; 1885 } else { 1886 ret = ionic_set_vf_config(ionic, vf, 1887 IONIC_VF_ATTR_SPOOFCHK, &data); 1888 if (!ret) 1889 ionic->vfs[vf].spoofchk = data; 1890 } 1891 1892 up_write(&ionic->vf_op_lock); 1893 return ret; 1894 } 1895 1896 static int ionic_set_vf_trust(struct net_device *netdev, int vf, bool set) 1897 { 1898 struct ionic_lif *lif = netdev_priv(netdev); 1899 struct ionic *ionic = lif->ionic; 1900 u8 data = set; /* convert to u8 for config */ 1901 int ret; 1902 1903 if (!netif_device_present(netdev)) 1904 return -EBUSY; 1905 1906 down_write(&ionic->vf_op_lock); 1907 1908 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1909 ret = -EINVAL; 1910 } else { 1911 ret = ionic_set_vf_config(ionic, vf, 1912 IONIC_VF_ATTR_TRUST, &data); 1913 if (!ret) 1914 ionic->vfs[vf].trusted = data; 1915 } 1916 1917 up_write(&ionic->vf_op_lock); 1918 return ret; 1919 } 1920 1921 static int ionic_set_vf_link_state(struct net_device *netdev, int vf, int set) 1922 { 1923 struct ionic_lif *lif = netdev_priv(netdev); 1924 struct ionic *ionic = lif->ionic; 1925 u8 data; 1926 int ret; 1927 1928 switch (set) { 1929 case IFLA_VF_LINK_STATE_ENABLE: 1930 data = IONIC_VF_LINK_STATUS_UP; 1931 break; 1932 case IFLA_VF_LINK_STATE_DISABLE: 1933 data = IONIC_VF_LINK_STATUS_DOWN; 1934 break; 1935 case IFLA_VF_LINK_STATE_AUTO: 1936 data = IONIC_VF_LINK_STATUS_AUTO; 1937 break; 1938 default: 1939 return -EINVAL; 1940 } 1941 1942 if (!netif_device_present(netdev)) 1943 return -EBUSY; 1944 1945 down_write(&ionic->vf_op_lock); 1946 1947 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) { 1948 ret = -EINVAL; 1949 } else { 1950 ret = ionic_set_vf_config(ionic, vf, 1951 IONIC_VF_ATTR_LINKSTATE, &data); 1952 if (!ret) 1953 ionic->vfs[vf].linkstate = set; 1954 } 1955 1956 up_write(&ionic->vf_op_lock); 1957 return ret; 1958 } 1959 1960 static const struct net_device_ops ionic_netdev_ops = { 1961 .ndo_open = ionic_open, 1962 .ndo_stop = ionic_stop, 1963 .ndo_start_xmit = ionic_start_xmit, 1964 .ndo_get_stats64 = ionic_get_stats64, 1965 .ndo_set_rx_mode = ionic_set_rx_mode, 1966 .ndo_set_features = ionic_set_features, 1967 .ndo_set_mac_address = ionic_set_mac_address, 1968 .ndo_validate_addr = eth_validate_addr, 1969 .ndo_tx_timeout = ionic_tx_timeout, 1970 .ndo_change_mtu = ionic_change_mtu, 1971 .ndo_vlan_rx_add_vid = ionic_vlan_rx_add_vid, 1972 .ndo_vlan_rx_kill_vid = ionic_vlan_rx_kill_vid, 1973 .ndo_set_vf_vlan = ionic_set_vf_vlan, 1974 .ndo_set_vf_trust = ionic_set_vf_trust, 1975 .ndo_set_vf_mac = ionic_set_vf_mac, 1976 .ndo_set_vf_rate = ionic_set_vf_rate, 1977 .ndo_set_vf_spoofchk = ionic_set_vf_spoofchk, 1978 .ndo_get_vf_config = ionic_get_vf_config, 1979 .ndo_set_vf_link_state = ionic_set_vf_link_state, 1980 .ndo_get_vf_stats = ionic_get_vf_stats, 1981 }; 1982 1983 int ionic_reset_queues(struct ionic_lif *lif) 1984 { 1985 bool running; 1986 int err = 0; 1987 1988 err = ionic_wait_for_bit(lif, IONIC_LIF_F_QUEUE_RESET); 1989 if (err) 1990 return err; 1991 1992 running = netif_running(lif->netdev); 1993 if (running) { 1994 netif_device_detach(lif->netdev); 1995 err = ionic_stop(lif->netdev); 1996 } 1997 if (!err && running) { 1998 ionic_open(lif->netdev); 1999 netif_device_attach(lif->netdev); 2000 } 2001 2002 clear_bit(IONIC_LIF_F_QUEUE_RESET, lif->state); 2003 2004 return err; 2005 } 2006 2007 static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index) 2008 { 2009 struct device *dev = ionic->dev; 2010 struct net_device *netdev; 2011 struct ionic_lif *lif; 2012 int tbl_sz; 2013 int err; 2014 2015 netdev = alloc_etherdev_mqs(sizeof(*lif), 2016 ionic->ntxqs_per_lif, ionic->ntxqs_per_lif); 2017 if (!netdev) { 2018 dev_err(dev, "Cannot allocate netdev, aborting\n"); 2019 return ERR_PTR(-ENOMEM); 2020 } 2021 2022 SET_NETDEV_DEV(netdev, dev); 2023 2024 lif = netdev_priv(netdev); 2025 lif->netdev = netdev; 2026 ionic->master_lif = lif; 2027 netdev->netdev_ops = &ionic_netdev_ops; 2028 ionic_ethtool_set_ops(netdev); 2029 2030 netdev->watchdog_timeo = 2 * HZ; 2031 netif_carrier_off(netdev); 2032 2033 netdev->min_mtu = IONIC_MIN_MTU; 2034 netdev->max_mtu = IONIC_MAX_MTU; 2035 2036 lif->neqs = ionic->neqs_per_lif; 2037 lif->nxqs = ionic->ntxqs_per_lif; 2038 2039 lif->ionic = ionic; 2040 lif->index = index; 2041 lif->ntxq_descs = IONIC_DEF_TXRX_DESC; 2042 lif->nrxq_descs = IONIC_DEF_TXRX_DESC; 2043 2044 /* Convert the default coalesce value to actual hw resolution */ 2045 lif->rx_coalesce_usecs = IONIC_ITR_COAL_USEC_DEFAULT; 2046 lif->rx_coalesce_hw = ionic_coal_usec_to_hw(lif->ionic, 2047 lif->rx_coalesce_usecs); 2048 2049 snprintf(lif->name, sizeof(lif->name), "lif%u", index); 2050 2051 spin_lock_init(&lif->adminq_lock); 2052 2053 spin_lock_init(&lif->deferred.lock); 2054 INIT_LIST_HEAD(&lif->deferred.list); 2055 INIT_WORK(&lif->deferred.work, ionic_lif_deferred_work); 2056 2057 /* allocate lif info */ 2058 lif->info_sz = ALIGN(sizeof(*lif->info), PAGE_SIZE); 2059 lif->info = dma_alloc_coherent(dev, lif->info_sz, 2060 &lif->info_pa, GFP_KERNEL); 2061 if (!lif->info) { 2062 dev_err(dev, "Failed to allocate lif info, aborting\n"); 2063 err = -ENOMEM; 2064 goto err_out_free_netdev; 2065 } 2066 2067 ionic_debugfs_add_lif(lif); 2068 2069 /* allocate queues */ 2070 err = ionic_qcqs_alloc(lif); 2071 if (err) 2072 goto err_out_free_lif_info; 2073 2074 /* allocate rss indirection table */ 2075 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz); 2076 lif->rss_ind_tbl_sz = sizeof(*lif->rss_ind_tbl) * tbl_sz; 2077 lif->rss_ind_tbl = dma_alloc_coherent(dev, lif->rss_ind_tbl_sz, 2078 &lif->rss_ind_tbl_pa, 2079 GFP_KERNEL); 2080 2081 if (!lif->rss_ind_tbl) { 2082 err = -ENOMEM; 2083 dev_err(dev, "Failed to allocate rss indirection table, aborting\n"); 2084 goto err_out_free_qcqs; 2085 } 2086 netdev_rss_key_fill(lif->rss_hash_key, IONIC_RSS_HASH_KEY_SIZE); 2087 2088 list_add_tail(&lif->list, &ionic->lifs); 2089 2090 return lif; 2091 2092 err_out_free_qcqs: 2093 ionic_qcqs_free(lif); 2094 err_out_free_lif_info: 2095 dma_free_coherent(dev, lif->info_sz, lif->info, lif->info_pa); 2096 lif->info = NULL; 2097 lif->info_pa = 0; 2098 err_out_free_netdev: 2099 free_netdev(lif->netdev); 2100 lif = NULL; 2101 2102 return ERR_PTR(err); 2103 } 2104 2105 int ionic_lifs_alloc(struct ionic *ionic) 2106 { 2107 struct ionic_lif *lif; 2108 2109 INIT_LIST_HEAD(&ionic->lifs); 2110 2111 /* only build the first lif, others are for later features */ 2112 set_bit(0, ionic->lifbits); 2113 2114 lif = ionic_lif_alloc(ionic, 0); 2115 if (IS_ERR_OR_NULL(lif)) { 2116 clear_bit(0, ionic->lifbits); 2117 return -ENOMEM; 2118 } 2119 2120 lif->lif_type = IONIC_LIF_TYPE_CLASSIC; 2121 ionic_lif_queue_identify(lif); 2122 2123 return 0; 2124 } 2125 2126 static void ionic_lif_reset(struct ionic_lif *lif) 2127 { 2128 struct ionic_dev *idev = &lif->ionic->idev; 2129 2130 mutex_lock(&lif->ionic->dev_cmd_lock); 2131 ionic_dev_cmd_lif_reset(idev, lif->index); 2132 ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT); 2133 mutex_unlock(&lif->ionic->dev_cmd_lock); 2134 } 2135 2136 static void ionic_lif_handle_fw_down(struct ionic_lif *lif) 2137 { 2138 struct ionic *ionic = lif->ionic; 2139 2140 if (test_and_set_bit(IONIC_LIF_F_FW_RESET, lif->state)) 2141 return; 2142 2143 dev_info(ionic->dev, "FW Down: Stopping LIFs\n"); 2144 2145 netif_device_detach(lif->netdev); 2146 2147 if (test_bit(IONIC_LIF_F_UP, lif->state)) { 2148 dev_info(ionic->dev, "Surprise FW stop, stopping queues\n"); 2149 ionic_stop_queues(lif); 2150 } 2151 2152 if (netif_running(lif->netdev)) { 2153 ionic_txrx_deinit(lif); 2154 ionic_txrx_free(lif); 2155 } 2156 ionic_lifs_deinit(ionic); 2157 ionic_reset(ionic); 2158 ionic_qcqs_free(lif); 2159 2160 dev_info(ionic->dev, "FW Down: LIFs stopped\n"); 2161 } 2162 2163 static void ionic_lif_handle_fw_up(struct ionic_lif *lif) 2164 { 2165 struct ionic *ionic = lif->ionic; 2166 int err; 2167 2168 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) 2169 return; 2170 2171 dev_info(ionic->dev, "FW Up: restarting LIFs\n"); 2172 2173 ionic_init_devinfo(ionic); 2174 ionic_port_init(ionic); 2175 err = ionic_qcqs_alloc(lif); 2176 if (err) 2177 goto err_out; 2178 2179 err = ionic_lifs_init(ionic); 2180 if (err) 2181 goto err_qcqs_free; 2182 2183 if (lif->registered) 2184 ionic_lif_set_netdev_info(lif); 2185 2186 ionic_rx_filter_replay(lif); 2187 2188 if (netif_running(lif->netdev)) { 2189 err = ionic_txrx_alloc(lif); 2190 if (err) 2191 goto err_lifs_deinit; 2192 2193 err = ionic_txrx_init(lif); 2194 if (err) 2195 goto err_txrx_free; 2196 } 2197 2198 clear_bit(IONIC_LIF_F_FW_RESET, lif->state); 2199 ionic_link_status_check_request(lif); 2200 netif_device_attach(lif->netdev); 2201 dev_info(ionic->dev, "FW Up: LIFs restarted\n"); 2202 2203 return; 2204 2205 err_txrx_free: 2206 ionic_txrx_free(lif); 2207 err_lifs_deinit: 2208 ionic_lifs_deinit(ionic); 2209 err_qcqs_free: 2210 ionic_qcqs_free(lif); 2211 err_out: 2212 dev_err(ionic->dev, "FW Up: LIFs restart failed - err %d\n", err); 2213 } 2214 2215 static void ionic_lif_free(struct ionic_lif *lif) 2216 { 2217 struct device *dev = lif->ionic->dev; 2218 2219 /* free rss indirection table */ 2220 dma_free_coherent(dev, lif->rss_ind_tbl_sz, lif->rss_ind_tbl, 2221 lif->rss_ind_tbl_pa); 2222 lif->rss_ind_tbl = NULL; 2223 lif->rss_ind_tbl_pa = 0; 2224 2225 /* free queues */ 2226 ionic_qcqs_free(lif); 2227 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) 2228 ionic_lif_reset(lif); 2229 2230 /* free lif info */ 2231 dma_free_coherent(dev, lif->info_sz, lif->info, lif->info_pa); 2232 lif->info = NULL; 2233 lif->info_pa = 0; 2234 2235 /* unmap doorbell page */ 2236 ionic_bus_unmap_dbpage(lif->ionic, lif->kern_dbpage); 2237 lif->kern_dbpage = NULL; 2238 kfree(lif->dbid_inuse); 2239 lif->dbid_inuse = NULL; 2240 2241 /* free netdev & lif */ 2242 ionic_debugfs_del_lif(lif); 2243 list_del(&lif->list); 2244 free_netdev(lif->netdev); 2245 } 2246 2247 void ionic_lifs_free(struct ionic *ionic) 2248 { 2249 struct list_head *cur, *tmp; 2250 struct ionic_lif *lif; 2251 2252 list_for_each_safe(cur, tmp, &ionic->lifs) { 2253 lif = list_entry(cur, struct ionic_lif, list); 2254 2255 ionic_lif_free(lif); 2256 } 2257 } 2258 2259 static void ionic_lif_deinit(struct ionic_lif *lif) 2260 { 2261 if (!test_and_clear_bit(IONIC_LIF_F_INITED, lif->state)) 2262 return; 2263 2264 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) { 2265 cancel_work_sync(&lif->deferred.work); 2266 cancel_work_sync(&lif->tx_timeout_work); 2267 ionic_rx_filters_deinit(lif); 2268 } 2269 2270 if (lif->netdev->features & NETIF_F_RXHASH) 2271 ionic_lif_rss_deinit(lif); 2272 2273 napi_disable(&lif->adminqcq->napi); 2274 ionic_lif_qcq_deinit(lif, lif->notifyqcq); 2275 ionic_lif_qcq_deinit(lif, lif->adminqcq); 2276 2277 ionic_lif_reset(lif); 2278 } 2279 2280 void ionic_lifs_deinit(struct ionic *ionic) 2281 { 2282 struct list_head *cur, *tmp; 2283 struct ionic_lif *lif; 2284 2285 list_for_each_safe(cur, tmp, &ionic->lifs) { 2286 lif = list_entry(cur, struct ionic_lif, list); 2287 ionic_lif_deinit(lif); 2288 } 2289 } 2290 2291 static int ionic_lif_adminq_init(struct ionic_lif *lif) 2292 { 2293 struct device *dev = lif->ionic->dev; 2294 struct ionic_q_init_comp comp; 2295 struct ionic_dev *idev; 2296 struct ionic_qcq *qcq; 2297 struct ionic_queue *q; 2298 int err; 2299 2300 idev = &lif->ionic->idev; 2301 qcq = lif->adminqcq; 2302 q = &qcq->q; 2303 2304 mutex_lock(&lif->ionic->dev_cmd_lock); 2305 ionic_dev_cmd_adminq_init(idev, qcq, lif->index, qcq->intr.index); 2306 err = ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT); 2307 ionic_dev_cmd_comp(idev, (union ionic_dev_cmd_comp *)&comp); 2308 mutex_unlock(&lif->ionic->dev_cmd_lock); 2309 if (err) { 2310 netdev_err(lif->netdev, "adminq init failed %d\n", err); 2311 return err; 2312 } 2313 2314 q->hw_type = comp.hw_type; 2315 q->hw_index = le32_to_cpu(comp.hw_index); 2316 q->dbval = IONIC_DBELL_QID(q->hw_index); 2317 2318 dev_dbg(dev, "adminq->hw_type %d\n", q->hw_type); 2319 dev_dbg(dev, "adminq->hw_index %d\n", q->hw_index); 2320 2321 netif_napi_add(lif->netdev, &qcq->napi, ionic_adminq_napi, 2322 NAPI_POLL_WEIGHT); 2323 2324 napi_enable(&qcq->napi); 2325 2326 if (qcq->flags & IONIC_QCQ_F_INTR) 2327 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index, 2328 IONIC_INTR_MASK_CLEAR); 2329 2330 qcq->flags |= IONIC_QCQ_F_INITED; 2331 2332 return 0; 2333 } 2334 2335 static int ionic_lif_notifyq_init(struct ionic_lif *lif) 2336 { 2337 struct ionic_qcq *qcq = lif->notifyqcq; 2338 struct device *dev = lif->ionic->dev; 2339 struct ionic_queue *q = &qcq->q; 2340 int err; 2341 2342 struct ionic_admin_ctx ctx = { 2343 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 2344 .cmd.q_init = { 2345 .opcode = IONIC_CMD_Q_INIT, 2346 .lif_index = cpu_to_le16(lif->index), 2347 .type = q->type, 2348 .ver = lif->qtype_info[q->type].version, 2349 .index = cpu_to_le32(q->index), 2350 .flags = cpu_to_le16(IONIC_QINIT_F_IRQ | 2351 IONIC_QINIT_F_ENA), 2352 .intr_index = cpu_to_le16(lif->adminqcq->intr.index), 2353 .pid = cpu_to_le16(q->pid), 2354 .ring_size = ilog2(q->num_descs), 2355 .ring_base = cpu_to_le64(q->base_pa), 2356 } 2357 }; 2358 2359 dev_dbg(dev, "notifyq_init.pid %d\n", ctx.cmd.q_init.pid); 2360 dev_dbg(dev, "notifyq_init.index %d\n", ctx.cmd.q_init.index); 2361 dev_dbg(dev, "notifyq_init.ring_base 0x%llx\n", ctx.cmd.q_init.ring_base); 2362 dev_dbg(dev, "notifyq_init.ring_size %d\n", ctx.cmd.q_init.ring_size); 2363 2364 err = ionic_adminq_post_wait(lif, &ctx); 2365 if (err) 2366 return err; 2367 2368 lif->last_eid = 0; 2369 q->hw_type = ctx.comp.q_init.hw_type; 2370 q->hw_index = le32_to_cpu(ctx.comp.q_init.hw_index); 2371 q->dbval = IONIC_DBELL_QID(q->hw_index); 2372 2373 dev_dbg(dev, "notifyq->hw_type %d\n", q->hw_type); 2374 dev_dbg(dev, "notifyq->hw_index %d\n", q->hw_index); 2375 2376 /* preset the callback info */ 2377 q->info[0].cb_arg = lif; 2378 2379 qcq->flags |= IONIC_QCQ_F_INITED; 2380 2381 return 0; 2382 } 2383 2384 static int ionic_station_set(struct ionic_lif *lif) 2385 { 2386 struct net_device *netdev = lif->netdev; 2387 struct ionic_admin_ctx ctx = { 2388 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 2389 .cmd.lif_getattr = { 2390 .opcode = IONIC_CMD_LIF_GETATTR, 2391 .index = cpu_to_le16(lif->index), 2392 .attr = IONIC_LIF_ATTR_MAC, 2393 }, 2394 }; 2395 struct sockaddr addr; 2396 int err; 2397 2398 err = ionic_adminq_post_wait(lif, &ctx); 2399 if (err) 2400 return err; 2401 netdev_dbg(lif->netdev, "found initial MAC addr %pM\n", 2402 ctx.comp.lif_getattr.mac); 2403 if (is_zero_ether_addr(ctx.comp.lif_getattr.mac)) 2404 return 0; 2405 2406 if (!is_zero_ether_addr(netdev->dev_addr)) { 2407 /* If the netdev mac is non-zero and doesn't match the default 2408 * device address, it was set by something earlier and we're 2409 * likely here again after a fw-upgrade reset. We need to be 2410 * sure the netdev mac is in our filter list. 2411 */ 2412 if (!ether_addr_equal(ctx.comp.lif_getattr.mac, 2413 netdev->dev_addr)) 2414 ionic_lif_addr(lif, netdev->dev_addr, true); 2415 } else { 2416 /* Update the netdev mac with the device's mac */ 2417 memcpy(addr.sa_data, ctx.comp.lif_getattr.mac, netdev->addr_len); 2418 addr.sa_family = AF_INET; 2419 err = eth_prepare_mac_addr_change(netdev, &addr); 2420 if (err) { 2421 netdev_warn(lif->netdev, "ignoring bad MAC addr from NIC %pM - err %d\n", 2422 addr.sa_data, err); 2423 return 0; 2424 } 2425 2426 eth_commit_mac_addr_change(netdev, &addr); 2427 } 2428 2429 netdev_dbg(lif->netdev, "adding station MAC addr %pM\n", 2430 netdev->dev_addr); 2431 ionic_lif_addr(lif, netdev->dev_addr, true); 2432 2433 return 0; 2434 } 2435 2436 static int ionic_lif_init(struct ionic_lif *lif) 2437 { 2438 struct ionic_dev *idev = &lif->ionic->idev; 2439 struct device *dev = lif->ionic->dev; 2440 struct ionic_lif_init_comp comp; 2441 int dbpage_num; 2442 int err; 2443 2444 mutex_lock(&lif->ionic->dev_cmd_lock); 2445 ionic_dev_cmd_lif_init(idev, lif->index, lif->info_pa); 2446 err = ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT); 2447 ionic_dev_cmd_comp(idev, (union ionic_dev_cmd_comp *)&comp); 2448 mutex_unlock(&lif->ionic->dev_cmd_lock); 2449 if (err) 2450 return err; 2451 2452 lif->hw_index = le16_to_cpu(comp.hw_index); 2453 2454 /* now that we have the hw_index we can figure out our doorbell page */ 2455 lif->dbid_count = le32_to_cpu(lif->ionic->ident.dev.ndbpgs_per_lif); 2456 if (!lif->dbid_count) { 2457 dev_err(dev, "No doorbell pages, aborting\n"); 2458 return -EINVAL; 2459 } 2460 2461 lif->dbid_inuse = bitmap_alloc(lif->dbid_count, GFP_KERNEL); 2462 if (!lif->dbid_inuse) { 2463 dev_err(dev, "Failed alloc doorbell id bitmap, aborting\n"); 2464 return -ENOMEM; 2465 } 2466 2467 /* first doorbell id reserved for kernel (dbid aka pid == zero) */ 2468 set_bit(0, lif->dbid_inuse); 2469 lif->kern_pid = 0; 2470 2471 dbpage_num = ionic_db_page_num(lif, lif->kern_pid); 2472 lif->kern_dbpage = ionic_bus_map_dbpage(lif->ionic, dbpage_num); 2473 if (!lif->kern_dbpage) { 2474 dev_err(dev, "Cannot map dbpage, aborting\n"); 2475 err = -ENOMEM; 2476 goto err_out_free_dbid; 2477 } 2478 2479 err = ionic_lif_adminq_init(lif); 2480 if (err) 2481 goto err_out_adminq_deinit; 2482 2483 if (lif->ionic->nnqs_per_lif) { 2484 err = ionic_lif_notifyq_init(lif); 2485 if (err) 2486 goto err_out_notifyq_deinit; 2487 } 2488 2489 err = ionic_init_nic_features(lif); 2490 if (err) 2491 goto err_out_notifyq_deinit; 2492 2493 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) { 2494 err = ionic_rx_filters_init(lif); 2495 if (err) 2496 goto err_out_notifyq_deinit; 2497 } 2498 2499 err = ionic_station_set(lif); 2500 if (err) 2501 goto err_out_notifyq_deinit; 2502 2503 lif->rx_copybreak = IONIC_RX_COPYBREAK_DEFAULT; 2504 2505 set_bit(IONIC_LIF_F_INITED, lif->state); 2506 2507 INIT_WORK(&lif->tx_timeout_work, ionic_tx_timeout_work); 2508 2509 return 0; 2510 2511 err_out_notifyq_deinit: 2512 ionic_lif_qcq_deinit(lif, lif->notifyqcq); 2513 err_out_adminq_deinit: 2514 ionic_lif_qcq_deinit(lif, lif->adminqcq); 2515 ionic_lif_reset(lif); 2516 ionic_bus_unmap_dbpage(lif->ionic, lif->kern_dbpage); 2517 lif->kern_dbpage = NULL; 2518 err_out_free_dbid: 2519 kfree(lif->dbid_inuse); 2520 lif->dbid_inuse = NULL; 2521 2522 return err; 2523 } 2524 2525 int ionic_lifs_init(struct ionic *ionic) 2526 { 2527 struct list_head *cur, *tmp; 2528 struct ionic_lif *lif; 2529 int err; 2530 2531 list_for_each_safe(cur, tmp, &ionic->lifs) { 2532 lif = list_entry(cur, struct ionic_lif, list); 2533 err = ionic_lif_init(lif); 2534 if (err) 2535 return err; 2536 } 2537 2538 return 0; 2539 } 2540 2541 static void ionic_lif_notify_work(struct work_struct *ws) 2542 { 2543 } 2544 2545 static void ionic_lif_set_netdev_info(struct ionic_lif *lif) 2546 { 2547 struct ionic_admin_ctx ctx = { 2548 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), 2549 .cmd.lif_setattr = { 2550 .opcode = IONIC_CMD_LIF_SETATTR, 2551 .index = cpu_to_le16(lif->index), 2552 .attr = IONIC_LIF_ATTR_NAME, 2553 }, 2554 }; 2555 2556 strlcpy(ctx.cmd.lif_setattr.name, lif->netdev->name, 2557 sizeof(ctx.cmd.lif_setattr.name)); 2558 2559 ionic_adminq_post_wait(lif, &ctx); 2560 } 2561 2562 static struct ionic_lif *ionic_netdev_lif(struct net_device *netdev) 2563 { 2564 if (!netdev || netdev->netdev_ops->ndo_start_xmit != ionic_start_xmit) 2565 return NULL; 2566 2567 return netdev_priv(netdev); 2568 } 2569 2570 static int ionic_lif_notify(struct notifier_block *nb, 2571 unsigned long event, void *info) 2572 { 2573 struct net_device *ndev = netdev_notifier_info_to_dev(info); 2574 struct ionic *ionic = container_of(nb, struct ionic, nb); 2575 struct ionic_lif *lif = ionic_netdev_lif(ndev); 2576 2577 if (!lif || lif->ionic != ionic) 2578 return NOTIFY_DONE; 2579 2580 switch (event) { 2581 case NETDEV_CHANGENAME: 2582 ionic_lif_set_netdev_info(lif); 2583 break; 2584 } 2585 2586 return NOTIFY_DONE; 2587 } 2588 2589 int ionic_lifs_register(struct ionic *ionic) 2590 { 2591 int err; 2592 2593 INIT_WORK(&ionic->nb_work, ionic_lif_notify_work); 2594 2595 ionic->nb.notifier_call = ionic_lif_notify; 2596 2597 err = register_netdevice_notifier(&ionic->nb); 2598 if (err) 2599 ionic->nb.notifier_call = NULL; 2600 2601 /* only register LIF0 for now */ 2602 err = register_netdev(ionic->master_lif->netdev); 2603 if (err) { 2604 dev_err(ionic->dev, "Cannot register net device, aborting\n"); 2605 return err; 2606 } 2607 ionic->master_lif->registered = true; 2608 2609 return 0; 2610 } 2611 2612 void ionic_lifs_unregister(struct ionic *ionic) 2613 { 2614 if (ionic->nb.notifier_call) { 2615 unregister_netdevice_notifier(&ionic->nb); 2616 cancel_work_sync(&ionic->nb_work); 2617 ionic->nb.notifier_call = NULL; 2618 } 2619 2620 /* There is only one lif ever registered in the 2621 * current model, so don't bother searching the 2622 * ionic->lif for candidates to unregister 2623 */ 2624 if (ionic->master_lif && 2625 ionic->master_lif->netdev->reg_state == NETREG_REGISTERED) 2626 unregister_netdev(ionic->master_lif->netdev); 2627 } 2628 2629 static void ionic_lif_queue_identify(struct ionic_lif *lif) 2630 { 2631 struct ionic *ionic = lif->ionic; 2632 union ionic_q_identity *q_ident; 2633 struct ionic_dev *idev; 2634 int qtype; 2635 int err; 2636 2637 idev = &lif->ionic->idev; 2638 q_ident = (union ionic_q_identity *)&idev->dev_cmd_regs->data; 2639 2640 for (qtype = 0; qtype < ARRAY_SIZE(ionic_qtype_versions); qtype++) { 2641 struct ionic_qtype_info *qti = &lif->qtype_info[qtype]; 2642 2643 /* filter out the ones we know about */ 2644 switch (qtype) { 2645 case IONIC_QTYPE_ADMINQ: 2646 case IONIC_QTYPE_NOTIFYQ: 2647 case IONIC_QTYPE_RXQ: 2648 case IONIC_QTYPE_TXQ: 2649 break; 2650 default: 2651 continue; 2652 } 2653 2654 memset(qti, 0, sizeof(*qti)); 2655 2656 mutex_lock(&ionic->dev_cmd_lock); 2657 ionic_dev_cmd_queue_identify(idev, lif->lif_type, qtype, 2658 ionic_qtype_versions[qtype]); 2659 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 2660 if (!err) { 2661 qti->version = q_ident->version; 2662 qti->supported = q_ident->supported; 2663 qti->features = le64_to_cpu(q_ident->features); 2664 qti->desc_sz = le16_to_cpu(q_ident->desc_sz); 2665 qti->comp_sz = le16_to_cpu(q_ident->comp_sz); 2666 qti->sg_desc_sz = le16_to_cpu(q_ident->sg_desc_sz); 2667 qti->max_sg_elems = le16_to_cpu(q_ident->max_sg_elems); 2668 qti->sg_desc_stride = le16_to_cpu(q_ident->sg_desc_stride); 2669 } 2670 mutex_unlock(&ionic->dev_cmd_lock); 2671 2672 if (err == -EINVAL) { 2673 dev_err(ionic->dev, "qtype %d not supported\n", qtype); 2674 continue; 2675 } else if (err == -EIO) { 2676 dev_err(ionic->dev, "q_ident failed, not supported on older FW\n"); 2677 return; 2678 } else if (err) { 2679 dev_err(ionic->dev, "q_ident failed, qtype %d: %d\n", 2680 qtype, err); 2681 return; 2682 } 2683 2684 dev_dbg(ionic->dev, " qtype[%d].version = %d\n", 2685 qtype, qti->version); 2686 dev_dbg(ionic->dev, " qtype[%d].supported = 0x%02x\n", 2687 qtype, qti->supported); 2688 dev_dbg(ionic->dev, " qtype[%d].features = 0x%04llx\n", 2689 qtype, qti->features); 2690 dev_dbg(ionic->dev, " qtype[%d].desc_sz = %d\n", 2691 qtype, qti->desc_sz); 2692 dev_dbg(ionic->dev, " qtype[%d].comp_sz = %d\n", 2693 qtype, qti->comp_sz); 2694 dev_dbg(ionic->dev, " qtype[%d].sg_desc_sz = %d\n", 2695 qtype, qti->sg_desc_sz); 2696 dev_dbg(ionic->dev, " qtype[%d].max_sg_elems = %d\n", 2697 qtype, qti->max_sg_elems); 2698 dev_dbg(ionic->dev, " qtype[%d].sg_desc_stride = %d\n", 2699 qtype, qti->sg_desc_stride); 2700 } 2701 } 2702 2703 int ionic_lif_identify(struct ionic *ionic, u8 lif_type, 2704 union ionic_lif_identity *lid) 2705 { 2706 struct ionic_dev *idev = &ionic->idev; 2707 size_t sz; 2708 int err; 2709 2710 sz = min(sizeof(*lid), sizeof(idev->dev_cmd_regs->data)); 2711 2712 mutex_lock(&ionic->dev_cmd_lock); 2713 ionic_dev_cmd_lif_identify(idev, lif_type, IONIC_IDENTITY_VERSION_1); 2714 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT); 2715 memcpy_fromio(lid, &idev->dev_cmd_regs->data, sz); 2716 mutex_unlock(&ionic->dev_cmd_lock); 2717 if (err) 2718 return (err); 2719 2720 dev_dbg(ionic->dev, "capabilities 0x%llx\n", 2721 le64_to_cpu(lid->capabilities)); 2722 2723 dev_dbg(ionic->dev, "eth.max_ucast_filters %d\n", 2724 le32_to_cpu(lid->eth.max_ucast_filters)); 2725 dev_dbg(ionic->dev, "eth.max_mcast_filters %d\n", 2726 le32_to_cpu(lid->eth.max_mcast_filters)); 2727 dev_dbg(ionic->dev, "eth.features 0x%llx\n", 2728 le64_to_cpu(lid->eth.config.features)); 2729 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_ADMINQ] %d\n", 2730 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_ADMINQ])); 2731 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_NOTIFYQ] %d\n", 2732 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_NOTIFYQ])); 2733 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_RXQ] %d\n", 2734 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_RXQ])); 2735 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_TXQ] %d\n", 2736 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_TXQ])); 2737 dev_dbg(ionic->dev, "eth.config.name %s\n", lid->eth.config.name); 2738 dev_dbg(ionic->dev, "eth.config.mac %pM\n", lid->eth.config.mac); 2739 dev_dbg(ionic->dev, "eth.config.mtu %d\n", 2740 le32_to_cpu(lid->eth.config.mtu)); 2741 2742 return 0; 2743 } 2744 2745 int ionic_lifs_size(struct ionic *ionic) 2746 { 2747 struct ionic_identity *ident = &ionic->ident; 2748 unsigned int nintrs, dev_nintrs; 2749 union ionic_lif_config *lc; 2750 unsigned int ntxqs_per_lif; 2751 unsigned int nrxqs_per_lif; 2752 unsigned int neqs_per_lif; 2753 unsigned int nnqs_per_lif; 2754 unsigned int nxqs, neqs; 2755 unsigned int min_intrs; 2756 int err; 2757 2758 lc = &ident->lif.eth.config; 2759 dev_nintrs = le32_to_cpu(ident->dev.nintrs); 2760 neqs_per_lif = le32_to_cpu(ident->lif.rdma.eq_qtype.qid_count); 2761 nnqs_per_lif = le32_to_cpu(lc->queue_count[IONIC_QTYPE_NOTIFYQ]); 2762 ntxqs_per_lif = le32_to_cpu(lc->queue_count[IONIC_QTYPE_TXQ]); 2763 nrxqs_per_lif = le32_to_cpu(lc->queue_count[IONIC_QTYPE_RXQ]); 2764 2765 nxqs = min(ntxqs_per_lif, nrxqs_per_lif); 2766 nxqs = min(nxqs, num_online_cpus()); 2767 neqs = min(neqs_per_lif, num_online_cpus()); 2768 2769 try_again: 2770 /* interrupt usage: 2771 * 1 for master lif adminq/notifyq 2772 * 1 for each CPU for master lif TxRx queue pairs 2773 * whatever's left is for RDMA queues 2774 */ 2775 nintrs = 1 + nxqs + neqs; 2776 min_intrs = 2; /* adminq + 1 TxRx queue pair */ 2777 2778 if (nintrs > dev_nintrs) 2779 goto try_fewer; 2780 2781 err = ionic_bus_alloc_irq_vectors(ionic, nintrs); 2782 if (err < 0 && err != -ENOSPC) { 2783 dev_err(ionic->dev, "Can't get intrs from OS: %d\n", err); 2784 return err; 2785 } 2786 if (err == -ENOSPC) 2787 goto try_fewer; 2788 2789 if (err != nintrs) { 2790 ionic_bus_free_irq_vectors(ionic); 2791 goto try_fewer; 2792 } 2793 2794 ionic->nnqs_per_lif = nnqs_per_lif; 2795 ionic->neqs_per_lif = neqs; 2796 ionic->ntxqs_per_lif = nxqs; 2797 ionic->nrxqs_per_lif = nxqs; 2798 ionic->nintrs = nintrs; 2799 2800 ionic_debugfs_add_sizes(ionic); 2801 2802 return 0; 2803 2804 try_fewer: 2805 if (nnqs_per_lif > 1) { 2806 nnqs_per_lif >>= 1; 2807 goto try_again; 2808 } 2809 if (neqs > 1) { 2810 neqs >>= 1; 2811 goto try_again; 2812 } 2813 if (nxqs > 1) { 2814 nxqs >>= 1; 2815 goto try_again; 2816 } 2817 dev_err(ionic->dev, "Can't get minimum %d intrs from OS\n", min_intrs); 2818 return -ENOSPC; 2819 } 2820