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1// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause2/*3 * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.4 */5 6#include <linux/module.h>7#include <linux/pci.h>8#include <linux/utsname.h>9#include <linux/version.h>10 11#include <rdma/ib_user_verbs.h>12#include <rdma/uverbs_ioctl.h>13 14#include "efa.h"15 16#define PCI_DEV_ID_EFA0_VF 0xefa017#define PCI_DEV_ID_EFA1_VF 0xefa118#define PCI_DEV_ID_EFA2_VF 0xefa219#define PCI_DEV_ID_EFA3_VF 0xefa320 21static const struct pci_device_id efa_pci_tbl[] = {22 { PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA0_VF) },23 { PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA1_VF) },24 { PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA2_VF) },25 { PCI_VDEVICE(AMAZON, PCI_DEV_ID_EFA3_VF) },26 { }27};28 29MODULE_AUTHOR("Amazon.com, Inc. or its affiliates");30MODULE_LICENSE("Dual BSD/GPL");31MODULE_DESCRIPTION(DEVICE_NAME);32MODULE_DEVICE_TABLE(pci, efa_pci_tbl);33 34#define EFA_REG_BAR 035#define EFA_MEM_BAR 236#define EFA_BASE_BAR_MASK (BIT(EFA_REG_BAR) | BIT(EFA_MEM_BAR))37 38#define EFA_AENQ_ENABLED_GROUPS \39 (BIT(EFA_ADMIN_FATAL_ERROR) | BIT(EFA_ADMIN_WARNING) | \40 BIT(EFA_ADMIN_NOTIFICATION) | BIT(EFA_ADMIN_KEEP_ALIVE))41 42extern const struct uapi_definition efa_uapi_defs[];43 44/* This handler will called for unknown event group or unimplemented handlers */45static void unimplemented_aenq_handler(void *data,46 struct efa_admin_aenq_entry *aenq_e)47{48 struct efa_dev *dev = (struct efa_dev *)data;49 50 ibdev_err(&dev->ibdev,51 "Unknown event was received or event with unimplemented handler\n");52}53 54static void efa_keep_alive(void *data, struct efa_admin_aenq_entry *aenq_e)55{56 struct efa_dev *dev = (struct efa_dev *)data;57 58 atomic64_inc(&dev->stats.keep_alive_rcvd);59}60 61static struct efa_aenq_handlers aenq_handlers = {62 .handlers = {63 [EFA_ADMIN_KEEP_ALIVE] = efa_keep_alive,64 },65 .unimplemented_handler = unimplemented_aenq_handler66};67 68static void efa_release_bars(struct efa_dev *dev, int bars_mask)69{70 struct pci_dev *pdev = dev->pdev;71 int release_bars;72 73 release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & bars_mask;74 pci_release_selected_regions(pdev, release_bars);75}76 77static void efa_process_comp_eqe(struct efa_dev *dev, struct efa_admin_eqe *eqe)78{79 u16 cqn = eqe->u.comp_event.cqn;80 struct efa_cq *cq;81 82 /* Safe to load as we're in irq and removal calls synchronize_irq() */83 cq = xa_load(&dev->cqs_xa, cqn);84 if (unlikely(!cq)) {85 ibdev_err_ratelimited(&dev->ibdev,86 "Completion event on non-existent CQ[%u]",87 cqn);88 return;89 }90 91 cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);92}93 94static void efa_process_eqe(struct efa_com_eq *eeq, struct efa_admin_eqe *eqe)95{96 struct efa_dev *dev = container_of(eeq->edev, struct efa_dev, edev);97 98 if (likely(EFA_GET(&eqe->common, EFA_ADMIN_EQE_EVENT_TYPE) ==99 EFA_ADMIN_EQE_EVENT_TYPE_COMPLETION))100 efa_process_comp_eqe(dev, eqe);101 else102 ibdev_err_ratelimited(&dev->ibdev,103 "Unknown event type received %lu",104 EFA_GET(&eqe->common,105 EFA_ADMIN_EQE_EVENT_TYPE));106}107 108static irqreturn_t efa_intr_msix_comp(int irq, void *data)109{110 struct efa_eq *eq = data;111 struct efa_com_dev *edev = eq->eeq.edev;112 113 efa_com_eq_comp_intr_handler(edev, &eq->eeq);114 115 return IRQ_HANDLED;116}117 118static irqreturn_t efa_intr_msix_mgmnt(int irq, void *data)119{120 struct efa_dev *dev = data;121 122 efa_com_admin_q_comp_intr_handler(&dev->edev);123 efa_com_aenq_intr_handler(&dev->edev, data);124 125 return IRQ_HANDLED;126}127 128static int efa_request_irq(struct efa_dev *dev, struct efa_irq *irq)129{130 int err;131 132 err = request_irq(irq->irqn, irq->handler, 0, irq->name, irq->data);133 if (err) {134 dev_err(&dev->pdev->dev, "Failed to request irq %s (%d)\n",135 irq->name, err);136 return err;137 }138 139 irq_set_affinity_hint(irq->irqn, &irq->affinity_hint_mask);140 141 return 0;142}143 144static void efa_setup_comp_irq(struct efa_dev *dev, struct efa_eq *eq,145 int vector)146{147 u32 cpu;148 149 cpu = vector - EFA_COMP_EQS_VEC_BASE;150 snprintf(eq->irq.name, EFA_IRQNAME_SIZE, "efa-comp%d@pci:%s", cpu,151 pci_name(dev->pdev));152 eq->irq.handler = efa_intr_msix_comp;153 eq->irq.data = eq;154 eq->irq.vector = vector;155 eq->irq.irqn = pci_irq_vector(dev->pdev, vector);156 cpumask_set_cpu(cpu, &eq->irq.affinity_hint_mask);157}158 159static void efa_free_irq(struct efa_dev *dev, struct efa_irq *irq)160{161 irq_set_affinity_hint(irq->irqn, NULL);162 free_irq(irq->irqn, irq->data);163}164 165static void efa_setup_mgmnt_irq(struct efa_dev *dev)166{167 u32 cpu;168 169 snprintf(dev->admin_irq.name, EFA_IRQNAME_SIZE,170 "efa-mgmnt@pci:%s", pci_name(dev->pdev));171 dev->admin_irq.handler = efa_intr_msix_mgmnt;172 dev->admin_irq.data = dev;173 dev->admin_irq.vector = dev->admin_msix_vector_idx;174 dev->admin_irq.irqn = pci_irq_vector(dev->pdev,175 dev->admin_msix_vector_idx);176 cpu = cpumask_first(cpu_online_mask);177 cpumask_set_cpu(cpu,178 &dev->admin_irq.affinity_hint_mask);179 dev_info(&dev->pdev->dev, "Setup irq:%d name:%s\n",180 dev->admin_irq.irqn,181 dev->admin_irq.name);182}183 184static int efa_set_mgmnt_irq(struct efa_dev *dev)185{186 efa_setup_mgmnt_irq(dev);187 188 return efa_request_irq(dev, &dev->admin_irq);189}190 191static int efa_request_doorbell_bar(struct efa_dev *dev)192{193 u8 db_bar_idx = dev->dev_attr.db_bar;194 struct pci_dev *pdev = dev->pdev;195 int pci_mem_bars;196 int db_bar;197 int err;198 199 db_bar = BIT(db_bar_idx);200 if (!(db_bar & EFA_BASE_BAR_MASK)) {201 pci_mem_bars = pci_select_bars(pdev, IORESOURCE_MEM);202 if (db_bar & ~pci_mem_bars) {203 dev_err(&pdev->dev,204 "Doorbells BAR unavailable. Requested %#x, available %#x\n",205 db_bar, pci_mem_bars);206 return -ENODEV;207 }208 209 err = pci_request_selected_regions(pdev, db_bar, DRV_MODULE_NAME);210 if (err) {211 dev_err(&pdev->dev,212 "pci_request_selected_regions for bar %d failed %d\n",213 db_bar_idx, err);214 return err;215 }216 }217 218 dev->db_bar_addr = pci_resource_start(dev->pdev, db_bar_idx);219 dev->db_bar_len = pci_resource_len(dev->pdev, db_bar_idx);220 221 return 0;222}223 224static void efa_release_doorbell_bar(struct efa_dev *dev)225{226 if (!(BIT(dev->dev_attr.db_bar) & EFA_BASE_BAR_MASK))227 efa_release_bars(dev, BIT(dev->dev_attr.db_bar));228}229 230static void efa_update_hw_hints(struct efa_dev *dev,231 struct efa_com_get_hw_hints_result *hw_hints)232{233 struct efa_com_dev *edev = &dev->edev;234 235 if (hw_hints->mmio_read_timeout)236 edev->mmio_read.mmio_read_timeout =237 hw_hints->mmio_read_timeout * 1000;238 239 if (hw_hints->poll_interval)240 edev->aq.poll_interval = hw_hints->poll_interval;241 242 if (hw_hints->admin_completion_timeout)243 edev->aq.completion_timeout =244 hw_hints->admin_completion_timeout;245}246 247static void efa_stats_init(struct efa_dev *dev)248{249 atomic64_t *s = (atomic64_t *)&dev->stats;250 int i;251 252 for (i = 0; i < sizeof(dev->stats) / sizeof(*s); i++, s++)253 atomic64_set(s, 0);254}255 256static void efa_set_host_info(struct efa_dev *dev)257{258 struct efa_admin_set_feature_resp resp = {};259 struct efa_admin_set_feature_cmd cmd = {};260 struct efa_admin_host_info *hinf;261 u32 bufsz = sizeof(*hinf);262 dma_addr_t hinf_dma;263 264 if (!efa_com_check_supported_feature_id(&dev->edev,265 EFA_ADMIN_HOST_INFO))266 return;267 268 /* Failures in host info set shall not disturb probe */269 hinf = dma_alloc_coherent(&dev->pdev->dev, bufsz, &hinf_dma,270 GFP_KERNEL);271 if (!hinf)272 return;273 274 strscpy(hinf->os_dist_str, utsname()->release,275 sizeof(hinf->os_dist_str));276 hinf->os_type = EFA_ADMIN_OS_LINUX;277 strscpy(hinf->kernel_ver_str, utsname()->version,278 sizeof(hinf->kernel_ver_str));279 hinf->kernel_ver = LINUX_VERSION_CODE;280 EFA_SET(&hinf->driver_ver, EFA_ADMIN_HOST_INFO_DRIVER_MAJOR, 0);281 EFA_SET(&hinf->driver_ver, EFA_ADMIN_HOST_INFO_DRIVER_MINOR, 0);282 EFA_SET(&hinf->driver_ver, EFA_ADMIN_HOST_INFO_DRIVER_SUB_MINOR, 0);283 EFA_SET(&hinf->driver_ver, EFA_ADMIN_HOST_INFO_DRIVER_MODULE_TYPE, 0);284 EFA_SET(&hinf->bdf, EFA_ADMIN_HOST_INFO_BUS, dev->pdev->bus->number);285 EFA_SET(&hinf->bdf, EFA_ADMIN_HOST_INFO_DEVICE,286 PCI_SLOT(dev->pdev->devfn));287 EFA_SET(&hinf->bdf, EFA_ADMIN_HOST_INFO_FUNCTION,288 PCI_FUNC(dev->pdev->devfn));289 EFA_SET(&hinf->spec_ver, EFA_ADMIN_HOST_INFO_SPEC_MAJOR,290 EFA_COMMON_SPEC_VERSION_MAJOR);291 EFA_SET(&hinf->spec_ver, EFA_ADMIN_HOST_INFO_SPEC_MINOR,292 EFA_COMMON_SPEC_VERSION_MINOR);293 EFA_SET(&hinf->flags, EFA_ADMIN_HOST_INFO_INTREE, 1);294 EFA_SET(&hinf->flags, EFA_ADMIN_HOST_INFO_GDR, 0);295 296 efa_com_set_feature_ex(&dev->edev, &resp, &cmd, EFA_ADMIN_HOST_INFO,297 hinf_dma, bufsz);298 299 dma_free_coherent(&dev->pdev->dev, bufsz, hinf, hinf_dma);300}301 302static void efa_destroy_eq(struct efa_dev *dev, struct efa_eq *eq)303{304 efa_com_eq_destroy(&dev->edev, &eq->eeq);305 efa_free_irq(dev, &eq->irq);306}307 308static int efa_create_eq(struct efa_dev *dev, struct efa_eq *eq, u8 msix_vec)309{310 int err;311 312 efa_setup_comp_irq(dev, eq, msix_vec);313 err = efa_request_irq(dev, &eq->irq);314 if (err)315 return err;316 317 err = efa_com_eq_init(&dev->edev, &eq->eeq, efa_process_eqe,318 dev->dev_attr.max_eq_depth, msix_vec);319 if (err)320 goto err_free_comp_irq;321 322 return 0;323 324err_free_comp_irq:325 efa_free_irq(dev, &eq->irq);326 return err;327}328 329static int efa_create_eqs(struct efa_dev *dev)330{331 unsigned int neqs = dev->dev_attr.max_eq;332 int err;333 int i;334 335 neqs = min_t(unsigned int, neqs,336 dev->num_irq_vectors - EFA_COMP_EQS_VEC_BASE);337 338 dev->neqs = neqs;339 dev->eqs = kcalloc(neqs, sizeof(*dev->eqs), GFP_KERNEL);340 if (!dev->eqs)341 return -ENOMEM;342 343 for (i = 0; i < neqs; i++) {344 err = efa_create_eq(dev, &dev->eqs[i],345 i + EFA_COMP_EQS_VEC_BASE);346 if (err)347 goto err_destroy_eqs;348 }349 350 return 0;351 352err_destroy_eqs:353 for (i--; i >= 0; i--)354 efa_destroy_eq(dev, &dev->eqs[i]);355 kfree(dev->eqs);356 357 return err;358}359 360static void efa_destroy_eqs(struct efa_dev *dev)361{362 int i;363 364 for (i = 0; i < dev->neqs; i++)365 efa_destroy_eq(dev, &dev->eqs[i]);366 367 kfree(dev->eqs);368}369 370static const struct ib_device_ops efa_dev_ops = {371 .owner = THIS_MODULE,372 .driver_id = RDMA_DRIVER_EFA,373 .uverbs_abi_ver = EFA_UVERBS_ABI_VERSION,374 375 .alloc_hw_port_stats = efa_alloc_hw_port_stats,376 .alloc_hw_device_stats = efa_alloc_hw_device_stats,377 .alloc_pd = efa_alloc_pd,378 .alloc_ucontext = efa_alloc_ucontext,379 .create_cq = efa_create_cq,380 .create_qp = efa_create_qp,381 .create_user_ah = efa_create_ah,382 .dealloc_pd = efa_dealloc_pd,383 .dealloc_ucontext = efa_dealloc_ucontext,384 .dereg_mr = efa_dereg_mr,385 .destroy_ah = efa_destroy_ah,386 .destroy_cq = efa_destroy_cq,387 .destroy_qp = efa_destroy_qp,388 .get_hw_stats = efa_get_hw_stats,389 .get_link_layer = efa_port_link_layer,390 .get_port_immutable = efa_get_port_immutable,391 .mmap = efa_mmap,392 .mmap_free = efa_mmap_free,393 .modify_qp = efa_modify_qp,394 .query_device = efa_query_device,395 .query_gid = efa_query_gid,396 .query_pkey = efa_query_pkey,397 .query_port = efa_query_port,398 .query_qp = efa_query_qp,399 .reg_user_mr = efa_reg_mr,400 .reg_user_mr_dmabuf = efa_reg_user_mr_dmabuf,401 402 INIT_RDMA_OBJ_SIZE(ib_ah, efa_ah, ibah),403 INIT_RDMA_OBJ_SIZE(ib_cq, efa_cq, ibcq),404 INIT_RDMA_OBJ_SIZE(ib_pd, efa_pd, ibpd),405 INIT_RDMA_OBJ_SIZE(ib_qp, efa_qp, ibqp),406 INIT_RDMA_OBJ_SIZE(ib_ucontext, efa_ucontext, ibucontext),407};408 409static int efa_ib_device_add(struct efa_dev *dev)410{411 struct efa_com_get_hw_hints_result hw_hints;412 struct pci_dev *pdev = dev->pdev;413 int err;414 415 efa_stats_init(dev);416 417 err = efa_com_get_device_attr(&dev->edev, &dev->dev_attr);418 if (err)419 return err;420 421 dev_dbg(&dev->pdev->dev, "Doorbells bar (%d)\n", dev->dev_attr.db_bar);422 err = efa_request_doorbell_bar(dev);423 if (err)424 return err;425 426 err = efa_com_get_hw_hints(&dev->edev, &hw_hints);427 if (err)428 goto err_release_doorbell_bar;429 430 efa_update_hw_hints(dev, &hw_hints);431 432 /* Try to enable all the available aenq groups */433 err = efa_com_set_aenq_config(&dev->edev, EFA_AENQ_ENABLED_GROUPS);434 if (err)435 goto err_release_doorbell_bar;436 437 err = efa_create_eqs(dev);438 if (err)439 goto err_release_doorbell_bar;440 441 efa_set_host_info(dev);442 443 dev->ibdev.node_type = RDMA_NODE_UNSPECIFIED;444 dev->ibdev.node_guid = dev->dev_attr.guid;445 dev->ibdev.phys_port_cnt = 1;446 dev->ibdev.num_comp_vectors = dev->neqs ?: 1;447 dev->ibdev.dev.parent = &pdev->dev;448 449 ib_set_device_ops(&dev->ibdev, &efa_dev_ops);450 451 dev->ibdev.driver_def = efa_uapi_defs;452 453 err = ib_register_device(&dev->ibdev, "efa_%d", &pdev->dev);454 if (err)455 goto err_destroy_eqs;456 457 ibdev_info(&dev->ibdev, "IB device registered\n");458 459 return 0;460 461err_destroy_eqs:462 efa_destroy_eqs(dev);463err_release_doorbell_bar:464 efa_release_doorbell_bar(dev);465 return err;466}467 468static void efa_ib_device_remove(struct efa_dev *dev)469{470 ibdev_info(&dev->ibdev, "Unregister ib device\n");471 ib_unregister_device(&dev->ibdev);472 efa_destroy_eqs(dev);473 efa_com_dev_reset(&dev->edev, EFA_REGS_RESET_NORMAL);474 efa_release_doorbell_bar(dev);475}476 477static void efa_disable_msix(struct efa_dev *dev)478{479 pci_free_irq_vectors(dev->pdev);480}481 482static int efa_enable_msix(struct efa_dev *dev)483{484 int max_vecs, num_vecs;485 486 /*487 * Reserve the max msix vectors we might need, one vector is reserved488 * for admin.489 */490 max_vecs = min_t(int, pci_msix_vec_count(dev->pdev),491 num_online_cpus() + 1);492 dev_dbg(&dev->pdev->dev, "Trying to enable MSI-X, vectors %d\n",493 max_vecs);494 495 dev->admin_msix_vector_idx = EFA_MGMNT_MSIX_VEC_IDX;496 num_vecs = pci_alloc_irq_vectors(dev->pdev, 1,497 max_vecs, PCI_IRQ_MSIX);498 499 if (num_vecs < 0) {500 dev_err(&dev->pdev->dev, "Failed to enable MSI-X. error %d\n",501 num_vecs);502 return -ENOSPC;503 }504 505 dev_dbg(&dev->pdev->dev, "Allocated %d MSI-X vectors\n", num_vecs);506 507 dev->num_irq_vectors = num_vecs;508 509 return 0;510}511 512static int efa_device_init(struct efa_com_dev *edev, struct pci_dev *pdev)513{514 int dma_width;515 int err;516 517 err = efa_com_dev_reset(edev, EFA_REGS_RESET_NORMAL);518 if (err)519 return err;520 521 err = efa_com_validate_version(edev);522 if (err)523 return err;524 525 dma_width = efa_com_get_dma_width(edev);526 if (dma_width < 0) {527 err = dma_width;528 return err;529 }530 531 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(dma_width));532 if (err) {533 dev_err(&pdev->dev, "dma_set_mask_and_coherent failed %d\n", err);534 return err;535 }536 537 dma_set_max_seg_size(&pdev->dev, UINT_MAX);538 return 0;539}540 541static struct efa_dev *efa_probe_device(struct pci_dev *pdev)542{543 struct efa_com_dev *edev;544 struct efa_dev *dev;545 int pci_mem_bars;546 int err;547 548 err = pci_enable_device_mem(pdev);549 if (err) {550 dev_err(&pdev->dev, "pci_enable_device_mem() failed!\n");551 return ERR_PTR(err);552 }553 554 pci_set_master(pdev);555 556 dev = ib_alloc_device(efa_dev, ibdev);557 if (!dev) {558 dev_err(&pdev->dev, "Device alloc failed\n");559 err = -ENOMEM;560 goto err_disable_device;561 }562 563 pci_set_drvdata(pdev, dev);564 edev = &dev->edev;565 edev->efa_dev = dev;566 edev->dmadev = &pdev->dev;567 dev->pdev = pdev;568 xa_init(&dev->cqs_xa);569 570 pci_mem_bars = pci_select_bars(pdev, IORESOURCE_MEM);571 if (EFA_BASE_BAR_MASK & ~pci_mem_bars) {572 dev_err(&pdev->dev, "BARs unavailable. Requested %#x, available %#x\n",573 (int)EFA_BASE_BAR_MASK, pci_mem_bars);574 err = -ENODEV;575 goto err_ibdev_destroy;576 }577 err = pci_request_selected_regions(pdev, EFA_BASE_BAR_MASK, DRV_MODULE_NAME);578 if (err) {579 dev_err(&pdev->dev, "pci_request_selected_regions failed %d\n",580 err);581 goto err_ibdev_destroy;582 }583 584 dev->reg_bar_addr = pci_resource_start(pdev, EFA_REG_BAR);585 dev->reg_bar_len = pci_resource_len(pdev, EFA_REG_BAR);586 dev->mem_bar_addr = pci_resource_start(pdev, EFA_MEM_BAR);587 dev->mem_bar_len = pci_resource_len(pdev, EFA_MEM_BAR);588 589 edev->reg_bar = devm_ioremap(&pdev->dev,590 dev->reg_bar_addr,591 dev->reg_bar_len);592 if (!edev->reg_bar) {593 dev_err(&pdev->dev, "Failed to remap register bar\n");594 err = -EFAULT;595 goto err_release_bars;596 }597 598 err = efa_com_mmio_reg_read_init(edev);599 if (err) {600 dev_err(&pdev->dev, "Failed to init readless MMIO\n");601 goto err_iounmap;602 }603 604 err = efa_device_init(edev, pdev);605 if (err) {606 dev_err(&pdev->dev, "EFA device init failed\n");607 if (err == -ETIME)608 err = -EPROBE_DEFER;609 goto err_reg_read_destroy;610 }611 612 err = efa_enable_msix(dev);613 if (err)614 goto err_reg_read_destroy;615 616 edev->aq.msix_vector_idx = dev->admin_msix_vector_idx;617 edev->aenq.msix_vector_idx = dev->admin_msix_vector_idx;618 619 err = efa_set_mgmnt_irq(dev);620 if (err)621 goto err_disable_msix;622 623 err = efa_com_admin_init(edev, &aenq_handlers);624 if (err)625 goto err_free_mgmnt_irq;626 627 return dev;628 629err_free_mgmnt_irq:630 efa_free_irq(dev, &dev->admin_irq);631err_disable_msix:632 efa_disable_msix(dev);633err_reg_read_destroy:634 efa_com_mmio_reg_read_destroy(edev);635err_iounmap:636 devm_iounmap(&pdev->dev, edev->reg_bar);637err_release_bars:638 efa_release_bars(dev, EFA_BASE_BAR_MASK);639err_ibdev_destroy:640 ib_dealloc_device(&dev->ibdev);641err_disable_device:642 pci_disable_device(pdev);643 return ERR_PTR(err);644}645 646static void efa_remove_device(struct pci_dev *pdev)647{648 struct efa_dev *dev = pci_get_drvdata(pdev);649 struct efa_com_dev *edev;650 651 edev = &dev->edev;652 efa_com_admin_destroy(edev);653 efa_free_irq(dev, &dev->admin_irq);654 efa_disable_msix(dev);655 efa_com_mmio_reg_read_destroy(edev);656 devm_iounmap(&pdev->dev, edev->reg_bar);657 efa_release_bars(dev, EFA_BASE_BAR_MASK);658 xa_destroy(&dev->cqs_xa);659 ib_dealloc_device(&dev->ibdev);660 pci_disable_device(pdev);661}662 663static int efa_probe(struct pci_dev *pdev, const struct pci_device_id *ent)664{665 struct efa_dev *dev;666 int err;667 668 dev = efa_probe_device(pdev);669 if (IS_ERR(dev))670 return PTR_ERR(dev);671 672 err = efa_ib_device_add(dev);673 if (err)674 goto err_remove_device;675 676 return 0;677 678err_remove_device:679 efa_remove_device(pdev);680 return err;681}682 683static void efa_remove(struct pci_dev *pdev)684{685 struct efa_dev *dev = pci_get_drvdata(pdev);686 687 efa_ib_device_remove(dev);688 efa_remove_device(pdev);689}690 691static void efa_shutdown(struct pci_dev *pdev)692{693 struct efa_dev *dev = pci_get_drvdata(pdev);694 695 efa_destroy_eqs(dev);696 efa_com_dev_reset(&dev->edev, EFA_REGS_RESET_SHUTDOWN);697 efa_free_irq(dev, &dev->admin_irq);698 efa_disable_msix(dev);699}700 701static struct pci_driver efa_pci_driver = {702 .name = DRV_MODULE_NAME,703 .id_table = efa_pci_tbl,704 .probe = efa_probe,705 .remove = efa_remove,706 .shutdown = efa_shutdown,707};708 709module_pci_driver(efa_pci_driver);710