diff options
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/main.c')
-rw-r--r-- | drivers/infiniband/hw/bnxt_re/main.c | 645 |
1 files changed, 341 insertions, 304 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index 793c97251588..8c0c80a8d338 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -78,28 +78,62 @@ static struct list_head bnxt_re_dev_list = LIST_HEAD_INIT(bnxt_re_dev_list); /* Mutex to protect the list of bnxt_re devices added */ static DEFINE_MUTEX(bnxt_re_dev_lock); static struct workqueue_struct *bnxt_re_wq; -static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev); +static void bnxt_re_remove_device(struct bnxt_re_dev *rdev); +static void bnxt_re_dealloc_driver(struct ib_device *ib_dev); +static void bnxt_re_stop_irq(void *handle); +static void bnxt_re_dev_stop(struct bnxt_re_dev *rdev); + +static void bnxt_re_set_drv_mode(struct bnxt_re_dev *rdev, u8 mode) +{ + struct bnxt_qplib_chip_ctx *cctx; + + cctx = rdev->chip_ctx; + cctx->modes.wqe_mode = bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) ? + mode : BNXT_QPLIB_WQE_MODE_STATIC; +} static void bnxt_re_destroy_chip_ctx(struct bnxt_re_dev *rdev) { + struct bnxt_qplib_chip_ctx *chip_ctx; + + if (!rdev->chip_ctx) + return; + chip_ctx = rdev->chip_ctx; + rdev->chip_ctx = NULL; rdev->rcfw.res = NULL; rdev->qplib_res.cctx = NULL; + rdev->qplib_res.pdev = NULL; + rdev->qplib_res.netdev = NULL; + kfree(chip_ctx); } -static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev) +static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev, u8 wqe_mode) { + struct bnxt_qplib_chip_ctx *chip_ctx; struct bnxt_en_dev *en_dev; struct bnxt *bp; en_dev = rdev->en_dev; bp = netdev_priv(en_dev->net); - rdev->chip_ctx.chip_num = bp->chip_num; + chip_ctx = kzalloc(sizeof(*chip_ctx), GFP_KERNEL); + if (!chip_ctx) + return -ENOMEM; + chip_ctx->chip_num = bp->chip_num; + chip_ctx->hw_stats_size = bp->hw_ring_stats_size; + + rdev->chip_ctx = chip_ctx; /* rest members to follow eventually */ - rdev->qplib_res.cctx = &rdev->chip_ctx; + rdev->qplib_res.cctx = rdev->chip_ctx; rdev->rcfw.res = &rdev->qplib_res; + rdev->qplib_res.dattr = &rdev->dev_attr; + rdev->qplib_res.is_vf = BNXT_VF(bp); + bnxt_re_set_drv_mode(rdev, wqe_mode); + if (bnxt_qplib_determine_atomics(en_dev->pdev)) + ibdev_info(&rdev->ibdev, + "platform doesn't support global atomics."); return 0; } @@ -136,9 +170,9 @@ static void bnxt_re_limit_pf_res(struct bnxt_re_dev *rdev) ctx->srqc_count = min_t(u32, BNXT_RE_MAX_SRQC_COUNT, attr->max_srq); ctx->cq_count = min_t(u32, BNXT_RE_MAX_CQ_COUNT, attr->max_cq); - if (!bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx)) + if (!bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx)) for (i = 0; i < MAX_TQM_ALLOC_REQ; i++) - rdev->qplib_ctx.tqm_count[i] = + rdev->qplib_ctx.tqm_ctx.qcount[i] = rdev->dev_attr.tqm_alloc_reqs[i]; } @@ -185,7 +219,7 @@ static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev) memset(&rdev->qplib_ctx.vf_res, 0, sizeof(struct bnxt_qplib_vf_res)); bnxt_re_limit_pf_res(rdev); - num_vfs = bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx) ? + num_vfs = bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) ? BNXT_RE_GEN_P5_MAX_VF : rdev->num_vfs; if (num_vfs) bnxt_re_limit_vf_res(&rdev->qplib_ctx, num_vfs); @@ -194,6 +228,37 @@ static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev) /* for handling bnxt_en callbacks later */ static void bnxt_re_stop(void *p) { + struct bnxt_re_dev *rdev = p; + struct bnxt *bp; + + if (!rdev) + return; + ASSERT_RTNL(); + + /* L2 driver invokes this callback during device error/crash or device + * reset. Current RoCE driver doesn't recover the device in case of + * error. Handle the error by dispatching fatal events to all qps + * ie. by calling bnxt_re_dev_stop and release the MSIx vectors as + * L2 driver want to modify the MSIx table. + */ + bp = netdev_priv(rdev->netdev); + + ibdev_info(&rdev->ibdev, "Handle device stop call from L2 driver"); + /* Check the current device state from L2 structure and move the + * device to detached state if FW_FATAL_COND is set. + * This prevents more commands to HW during clean-up, + * in case the device is already in error. + */ + if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) + set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); + + bnxt_re_dev_stop(rdev); + bnxt_re_stop_irq(rdev); + /* Move the device states to detached and avoid sending any more + * commands to HW + */ + set_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags); + set_bit(ERR_DEVICE_DETACHED, &rdev->rcfw.cmdq.flags); } static void bnxt_re_start(void *p) @@ -207,8 +272,10 @@ static void bnxt_re_sriov_config(void *p, int num_vfs) if (!rdev) return; + if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) + return; rdev->num_vfs = num_vfs; - if (!bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx)) { + if (!bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx)) { bnxt_re_set_resource_limits(rdev); bnxt_qplib_set_func_resources(&rdev->qplib_res, &rdev->rcfw, &rdev->qplib_ctx); @@ -221,8 +288,10 @@ static void bnxt_re_shutdown(void *p) if (!rdev) return; - - bnxt_re_ib_unreg(rdev); + ASSERT_RTNL(); + /* Release the MSIx vectors before queuing unregister */ + bnxt_re_stop_irq(rdev); + ib_unregister_device_queued(&rdev->ibdev); } static void bnxt_re_stop_irq(void *handle) @@ -254,7 +323,7 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent) * to f/w will timeout and that will set the * timeout bit. */ - dev_err(rdev_to_dev(rdev), "Failed to re-start IRQs\n"); + ibdev_err(&rdev->ibdev, "Failed to re-start IRQs\n"); return; } @@ -271,8 +340,8 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent) rc = bnxt_qplib_nq_start_irq(nq, indx - 1, msix_ent[indx].vector, false); if (rc) - dev_warn(rdev_to_dev(rdev), - "Failed to reinit NQ index %d\n", indx - 1); + ibdev_warn(&rdev->ibdev, "Failed to reinit NQ index %d\n", + indx - 1); } } @@ -358,9 +427,9 @@ static int bnxt_re_request_msix(struct bnxt_re_dev *rdev) goto done; } if (num_msix_got != num_msix_want) { - dev_warn(rdev_to_dev(rdev), - "Requested %d MSI-X vectors, got %d\n", - num_msix_want, num_msix_got); + ibdev_warn(&rdev->ibdev, + "Requested %d MSI-X vectors, got %d\n", + num_msix_want, num_msix_got); } rdev->num_msix = num_msix_got; done: @@ -398,6 +467,9 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, if (!en_dev) return rc; + if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) + return 0; + memset(&fw_msg, 0, sizeof(fw_msg)); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_FREE, -1, -1); @@ -407,14 +479,14 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); if (rc) - dev_err(rdev_to_dev(rdev), - "Failed to free HW ring:%d :%#x", req.ring_id, rc); + ibdev_err(&rdev->ibdev, "Failed to free HW ring:%d :%#x", + req.ring_id, rc); return rc; } -static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, dma_addr_t *dma_arr, - int pages, int type, u32 ring_mask, - u32 map_index, u16 *fw_ring_id) +static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, + struct bnxt_re_ring_attr *ring_attr, + u16 *fw_ring_id) { struct bnxt_en_dev *en_dev = rdev->en_dev; struct hwrm_ring_alloc_input req = {0}; @@ -428,18 +500,18 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev, dma_addr_t *dma_arr, memset(&fw_msg, 0, sizeof(fw_msg)); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_ALLOC, -1, -1); req.enables = 0; - req.page_tbl_addr = cpu_to_le64(dma_arr[0]); - if (pages > 1) { + req.page_tbl_addr = cpu_to_le64(ring_attr->dma_arr[0]); + if (ring_attr->pages > 1) { /* Page size is in log2 units */ req.page_size = BNXT_PAGE_SHIFT; req.page_tbl_depth = 1; } req.fbo = 0; /* Association of ring index with doorbell index and MSIX number */ - req.logical_id = cpu_to_le16(map_index); - req.length = cpu_to_le32(ring_mask + 1); - req.ring_type = type; - req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; + req.logical_id = cpu_to_le16(ring_attr->lrid); + req.length = cpu_to_le32(ring_attr->depth + 1); + req.ring_type = ring_attr->type; + req.int_mode = ring_attr->mode; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); @@ -453,23 +525,27 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev, u32 fw_stats_ctx_id) { struct bnxt_en_dev *en_dev = rdev->en_dev; - struct hwrm_stat_ctx_free_input req = {0}; + struct hwrm_stat_ctx_free_input req = {}; + struct hwrm_stat_ctx_free_output resp = {}; struct bnxt_fw_msg fw_msg; int rc = -EINVAL; if (!en_dev) return rc; + if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags)) + return 0; + memset(&fw_msg, 0, sizeof(fw_msg)); bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_FREE, -1, -1); req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id); - bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&req, - sizeof(req), DFLT_HWRM_CMD_TIMEOUT); + bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, + sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); if (rc) - dev_err(rdev_to_dev(rdev), - "Failed to free HW stats context %#x", rc); + ibdev_err(&rdev->ibdev, "Failed to free HW stats context %#x", + rc); return rc; } @@ -478,6 +554,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, dma_addr_t dma_map, u32 *fw_stats_ctx_id) { + struct bnxt_qplib_chip_ctx *chip_ctx = rdev->chip_ctx; struct hwrm_stat_ctx_alloc_output resp = {0}; struct hwrm_stat_ctx_alloc_input req = {0}; struct bnxt_en_dev *en_dev = rdev->en_dev; @@ -494,7 +571,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_ALLOC, -1, -1); req.update_period_ms = cpu_to_le32(1000); req.stats_dma_addr = cpu_to_le64(dma_map); - req.stats_dma_length = cpu_to_le16(sizeof(struct ctx_hw_stats_ext)); + req.stats_dma_length = cpu_to_le16(chip_ctx->hw_stats_size); req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); @@ -524,37 +601,20 @@ static bool is_bnxt_re_dev(struct net_device *netdev) static struct bnxt_re_dev *bnxt_re_from_netdev(struct net_device *netdev) { - struct bnxt_re_dev *rdev; - - rcu_read_lock(); - list_for_each_entry_rcu(rdev, &bnxt_re_dev_list, list) { - if (rdev->netdev == netdev) { - rcu_read_unlock(); - return rdev; - } - } - rcu_read_unlock(); - return NULL; -} + struct ib_device *ibdev = + ib_device_get_by_netdev(netdev, RDMA_DRIVER_BNXT_RE); + if (!ibdev) + return NULL; -static void bnxt_re_dev_unprobe(struct net_device *netdev, - struct bnxt_en_dev *en_dev) -{ - dev_put(netdev); - module_put(en_dev->pdev->driver->driver.owner); + return container_of(ibdev, struct bnxt_re_dev, ibdev); } static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev) { - struct bnxt *bp = netdev_priv(netdev); struct bnxt_en_dev *en_dev; struct pci_dev *pdev; - /* Call bnxt_en's RoCE probe via indirect API */ - if (!bp->ulp_probe) - return ERR_PTR(-EINVAL); - - en_dev = bp->ulp_probe(netdev); + en_dev = bnxt_ulp_probe(netdev); if (IS_ERR(en_dev)) return en_dev; @@ -569,10 +629,6 @@ static struct bnxt_en_dev *bnxt_re_dev_probe(struct net_device *netdev) return ERR_PTR(-ENODEV); } - /* Bump net device reference count */ - if (!try_module_get(pdev->driver->driver.owner)) - return ERR_PTR(-ENODEV); - dev_hold(netdev); return en_dev; @@ -584,7 +640,7 @@ static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, struct bnxt_re_dev *rdev = rdma_device_to_drv_device(device, struct bnxt_re_dev, ibdev); - return scnprintf(buf, PAGE_SIZE, "0x%x\n", rdev->en_dev->pdev->vendor); + return sysfs_emit(buf, "0x%x\n", rdev->en_dev->pdev->vendor); } static DEVICE_ATTR_RO(hw_rev); @@ -594,7 +650,7 @@ static ssize_t hca_type_show(struct device *device, struct bnxt_re_dev *rdev = rdma_device_to_drv_device(device, struct bnxt_re_dev, ibdev); - return scnprintf(buf, PAGE_SIZE, "%s\n", rdev->ibdev.node_desc); + return sysfs_emit(buf, "%s\n", rdev->ibdev.node_desc); } static DEVICE_ATTR_RO(hca_type); @@ -608,18 +664,13 @@ static const struct attribute_group bnxt_re_dev_attr_group = { .attrs = bnxt_re_attributes, }; -static void bnxt_re_unregister_ib(struct bnxt_re_dev *rdev) -{ - ib_unregister_device(&rdev->ibdev); -} - static const struct ib_device_ops bnxt_re_dev_ops = { .owner = THIS_MODULE, .driver_id = RDMA_DRIVER_BNXT_RE, .uverbs_abi_ver = BNXT_RE_ABI_VERSION, .add_gid = bnxt_re_add_gid, - .alloc_hw_stats = bnxt_re_ib_alloc_hw_stats, + .alloc_hw_port_stats = bnxt_re_ib_alloc_hw_port_stats, .alloc_mr = bnxt_re_alloc_mr, .alloc_pd = bnxt_re_alloc_pd, .alloc_ucontext = bnxt_re_alloc_ucontext, @@ -627,6 +678,8 @@ static const struct ib_device_ops bnxt_re_dev_ops = { .create_cq = bnxt_re_create_cq, .create_qp = bnxt_re_create_qp, .create_srq = bnxt_re_create_srq, + .create_user_ah = bnxt_re_create_ah, + .dealloc_driver = bnxt_re_dealloc_driver, .dealloc_pd = bnxt_re_dealloc_pd, .dealloc_ucontext = bnxt_re_dealloc_ucontext, .del_gid = bnxt_re_del_gid, @@ -635,6 +688,7 @@ static const struct ib_device_ops bnxt_re_dev_ops = { .destroy_cq = bnxt_re_destroy_cq, .destroy_qp = bnxt_re_destroy_qp, .destroy_srq = bnxt_re_destroy_srq, + .device_group = &bnxt_re_dev_attr_group, .get_dev_fw_str = bnxt_re_query_fw_str, .get_dma_mr = bnxt_re_get_dma_mr, .get_hw_stats = bnxt_re_ib_get_hw_stats, @@ -642,7 +696,6 @@ static const struct ib_device_ops bnxt_re_dev_ops = { .get_port_immutable = bnxt_re_get_port_immutable, .map_mr_sg = bnxt_re_map_mr_sg, .mmap = bnxt_re_mmap, - .modify_ah = bnxt_re_modify_ah, .modify_qp = bnxt_re_modify_qp, .modify_srq = bnxt_re_modify_srq, .poll_cq = bnxt_re_poll_cq, @@ -660,6 +713,7 @@ static const struct ib_device_ops bnxt_re_dev_ops = { INIT_RDMA_OBJ_SIZE(ib_ah, bnxt_re_ah, ib_ah), INIT_RDMA_OBJ_SIZE(ib_cq, bnxt_re_cq, ib_cq), INIT_RDMA_OBJ_SIZE(ib_pd, bnxt_re_pd, ib_pd), + INIT_RDMA_OBJ_SIZE(ib_qp, bnxt_re_qp, ib_qp), INIT_RDMA_OBJ_SIZE(ib_srq, bnxt_re_srq, ib_srq), INIT_RDMA_OBJ_SIZE(ib_ucontext, bnxt_re_ucontext, ib_uctx), }; @@ -671,67 +725,34 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev) /* ib device init */ ibdev->node_type = RDMA_NODE_IB_CA; - strlcpy(ibdev->node_desc, BNXT_RE_DESC " HCA", + strscpy(ibdev->node_desc, BNXT_RE_DESC " HCA", strlen(BNXT_RE_DESC) + 5); ibdev->phys_port_cnt = 1; - bnxt_qplib_get_guid(rdev->netdev->dev_addr, (u8 *)&ibdev->node_guid); + addrconf_addr_eui48((u8 *)&ibdev->node_guid, rdev->netdev->dev_addr); ibdev->num_comp_vectors = rdev->num_msix - 1; ibdev->dev.parent = &rdev->en_dev->pdev->dev; ibdev->local_dma_lkey = BNXT_QPLIB_RSVD_LKEY; - /* User space */ - ibdev->uverbs_cmd_mask = - (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | - (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | - (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | - (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | - (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | - (1ull << IB_USER_VERBS_CMD_REG_MR) | - (1ull << IB_USER_VERBS_CMD_REREG_MR) | - (1ull << IB_USER_VERBS_CMD_DEREG_MR) | - (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | - (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | - (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | - (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | - (1ull << IB_USER_VERBS_CMD_CREATE_QP) | - (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | - (1ull << IB_USER_VERBS_CMD_QUERY_QP) | - (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | - (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | - (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | - (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | - (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | - (1ull << IB_USER_VERBS_CMD_CREATE_AH) | - (1ull << IB_USER_VERBS_CMD_MODIFY_AH) | - (1ull << IB_USER_VERBS_CMD_QUERY_AH) | - (1ull << IB_USER_VERBS_CMD_DESTROY_AH); - /* POLL_CQ and REQ_NOTIFY_CQ is directly handled in libbnxt_re */ - - - rdma_set_device_sysfs_group(ibdev, &bnxt_re_dev_attr_group); ib_set_device_ops(ibdev, &bnxt_re_dev_ops); ret = ib_device_set_netdev(&rdev->ibdev, rdev->netdev, 1); if (ret) return ret; - return ib_register_device(ibdev, "bnxt_re%d"); + dma_set_max_seg_size(&rdev->en_dev->pdev->dev, UINT_MAX); + return ib_register_device(ibdev, "bnxt_re%d", &rdev->en_dev->pdev->dev); } static void bnxt_re_dev_remove(struct bnxt_re_dev *rdev) { dev_put(rdev->netdev); rdev->netdev = NULL; - mutex_lock(&bnxt_re_dev_lock); list_del_rcu(&rdev->list); mutex_unlock(&bnxt_re_dev_lock); synchronize_rcu(); - - ib_dealloc_device(&rdev->ibdev); - /* rdev is gone */ } static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev, @@ -742,8 +763,8 @@ static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev, /* Allocate bnxt_re_dev instance here */ rdev = ib_alloc_device(bnxt_re_dev, ibdev); if (!rdev) { - dev_err(NULL, "%s: bnxt_re_dev allocation failure!", - ROCE_DRV_MODULE_NAME); + ibdev_err(NULL, "%s: bnxt_re_dev allocation failure!", + ROCE_DRV_MODULE_NAME); return NULL; } /* Default values */ @@ -758,6 +779,8 @@ static struct bnxt_re_dev *bnxt_re_dev_add(struct net_device *netdev, atomic_set(&rdev->srq_count, 0); atomic_set(&rdev->mr_count, 0); atomic_set(&rdev->mw_count, 0); + atomic_set(&rdev->ah_count, 0); + atomic_set(&rdev->pd_count, 0); rdev->cosq[0] = 0xFFFF; rdev->cosq[1] = 0xFFFF; @@ -805,7 +828,8 @@ static int bnxt_re_handle_qp_async_event(struct creq_qp_event *qp_event, struct ib_event event; unsigned int flags; - if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR) { + if (qp->qplib_qp.state == CMDQ_MODIFY_QP_NEW_STATE_ERR && + rdma_is_kernel_res(&qp->ib_qp.res)) { flags = bnxt_re_lock_cqs(qp); bnxt_qplib_add_flush_qp(&qp->qplib_qp); bnxt_re_unlock_cqs(qp, flags); @@ -869,14 +893,7 @@ static int bnxt_re_srqn_handler(struct bnxt_qplib_nq *nq, struct bnxt_re_srq *srq = container_of(handle, struct bnxt_re_srq, qplib_srq); struct ib_event ib_event; - int rc = 0; - if (!srq) { - dev_err(NULL, "%s: SRQ is NULL, SRQN not handled", - ROCE_DRV_MODULE_NAME); - rc = -EINVAL; - goto done; - } ib_event.device = &srq->rdev->ibdev; ib_event.element.srq = &srq->ib_srq; if (event == NQ_SRQ_EVENT_EVENT_SRQ_THRESHOLD_EVENT) @@ -889,8 +906,7 @@ static int bnxt_re_srqn_handler(struct bnxt_qplib_nq *nq, (*srq->ib_srq.event_handler)(&ib_event, srq->ib_srq.srq_context); } -done: - return rc; + return 0; } static int bnxt_re_cqn_handler(struct bnxt_qplib_nq *nq, @@ -899,11 +915,6 @@ static int bnxt_re_cqn_handler(struct bnxt_qplib_nq *nq, struct bnxt_re_cq *cq = container_of(handle, struct bnxt_re_cq, qplib_cq); - if (!cq) { - dev_err(NULL, "%s: CQ is NULL, CQN not handled", - ROCE_DRV_MODULE_NAME); - return -EINVAL; - } if (cq->ib_cq.comp_handler) { /* Lock comp_handler? */ (*cq->ib_cq.comp_handler)(&cq->ib_cq, cq->ib_cq.cq_context); @@ -916,7 +927,7 @@ static int bnxt_re_cqn_handler(struct bnxt_qplib_nq *nq, #define BNXT_RE_GEN_P5_VF_NQ_DB 0x4000 static u32 bnxt_re_get_nqdb_offset(struct bnxt_re_dev *rdev, u16 indx) { - return bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx) ? + return bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) ? (rdev->is_virtfn ? BNXT_RE_GEN_P5_VF_NQ_DB : BNXT_RE_GEN_P5_PF_NQ_DB) : rdev->msix_entries[indx].db_offset; @@ -948,8 +959,8 @@ static int bnxt_re_init_res(struct bnxt_re_dev *rdev) db_offt, &bnxt_re_cqn_handler, &bnxt_re_srqn_handler); if (rc) { - dev_err(rdev_to_dev(rdev), - "Failed to enable NQ with rc = 0x%x", rc); + ibdev_err(&rdev->ibdev, + "Failed to enable NQ with rc = 0x%x", rc); goto fail; } num_vec_enabled++; @@ -967,10 +978,10 @@ static void bnxt_re_free_nq_res(struct bnxt_re_dev *rdev) int i; for (i = 0; i < rdev->num_msix - 1; i++) { - type = bnxt_qplib_get_ring_type(&rdev->chip_ctx); + type = bnxt_qplib_get_ring_type(rdev->chip_ctx); bnxt_re_net_ring_free(rdev, rdev->nq[i].ring_id, type); - rdev->nq[i].res = NULL; bnxt_qplib_free_nq(&rdev->nq[i]); + rdev->nq[i].res = NULL; } } @@ -991,10 +1002,9 @@ static void bnxt_re_free_res(struct bnxt_re_dev *rdev) static int bnxt_re_alloc_res(struct bnxt_re_dev *rdev) { + struct bnxt_re_ring_attr rattr = {}; int num_vec_created = 0; - dma_addr_t *pg_map; int rc = 0, i; - int pages; u8 type; /* Configure and allocate resources for qplib */ @@ -1016,26 +1026,28 @@ static int bnxt_re_alloc_res(struct bnxt_re_dev *rdev) goto dealloc_res; for (i = 0; i < rdev->num_msix - 1; i++) { - rdev->nq[i].res = &rdev->qplib_res; - rdev->nq[i].hwq.max_elements = BNXT_RE_MAX_CQ_COUNT + - BNXT_RE_MAX_SRQC_COUNT + 2; - rc = bnxt_qplib_alloc_nq(rdev->en_dev->pdev, &rdev->nq[i]); + struct bnxt_qplib_nq *nq; + + nq = &rdev->nq[i]; + nq->hwq.max_elements = BNXT_QPLIB_NQE_MAX_CNT; + rc = bnxt_qplib_alloc_nq(&rdev->qplib_res, &rdev->nq[i]); if (rc) { - dev_err(rdev_to_dev(rdev), "Alloc Failed NQ%d rc:%#x", - i, rc); + ibdev_err(&rdev->ibdev, "Alloc Failed NQ%d rc:%#x", + i, rc); goto free_nq; } - type = bnxt_qplib_get_ring_type(&rdev->chip_ctx); - pg_map = rdev->nq[i].hwq.pbl[PBL_LVL_0].pg_map_arr; - pages = rdev->nq[i].hwq.pbl[rdev->nq[i].hwq.level].pg_count; - rc = bnxt_re_net_ring_alloc(rdev, pg_map, pages, type, - BNXT_QPLIB_NQE_MAX_CNT - 1, - rdev->msix_entries[i + 1].ring_idx, - &rdev->nq[i].ring_id); + type = bnxt_qplib_get_ring_type(rdev->chip_ctx); + rattr.dma_arr = nq->hwq.pbl[PBL_LVL_0].pg_map_arr; + rattr.pages = nq->hwq.pbl[rdev->nq[i].hwq.level].pg_count; + rattr.type = type; + rattr.mode = RING_ALLOC_REQ_INT_MODE_MSIX; + rattr.depth = BNXT_QPLIB_NQE_MAX_CNT - 1; + rattr.lrid = rdev->msix_entries[i + 1].ring_idx; + rc = bnxt_re_net_ring_alloc(rdev, &rattr, &nq->ring_id); if (rc) { - dev_err(rdev_to_dev(rdev), - "Failed to allocate NQ fw id with rc = 0x%x", - rc); + ibdev_err(&rdev->ibdev, + "Failed to allocate NQ fw id with rc = 0x%x", + rc); bnxt_qplib_free_nq(&rdev->nq[i]); goto free_nq; } @@ -1043,8 +1055,8 @@ static int bnxt_re_alloc_res(struct bnxt_re_dev *rdev) } return 0; free_nq: - for (i = num_vec_created; i >= 0; i--) { - type = bnxt_qplib_get_ring_type(&rdev->chip_ctx); + for (i = num_vec_created - 1; i >= 0; i--) { + type = bnxt_qplib_get_ring_type(rdev->chip_ctx); bnxt_re_net_ring_free(rdev, rdev->nq[i].ring_id, type); bnxt_qplib_free_nq(&rdev->nq[i]); } @@ -1109,10 +1121,10 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, return rc; if (resp.queue_cfg_info) { - dev_warn(rdev_to_dev(rdev), - "Asymmetric cos queue configuration detected"); - dev_warn(rdev_to_dev(rdev), - " on device, QoS may not be fully functional\n"); + ibdev_warn(&rdev->ibdev, + "Asymmetric cos queue configuration detected"); + ibdev_warn(&rdev->ibdev, + " on device, QoS may not be fully functional\n"); } qcfgmap = &resp.pri0_cos_queue_id; tmp_map = (u8 *)cid_map; @@ -1125,7 +1137,8 @@ static int bnxt_re_query_hwrm_pri2cos(struct bnxt_re_dev *rdev, u8 dir, static bool bnxt_re_is_qp1_or_shadow_qp(struct bnxt_re_dev *rdev, struct bnxt_re_qp *qp) { - return (qp->ib_qp.qp_type == IB_QPT_GSI) || (qp == rdev->qp1_sqp); + return (qp->ib_qp.qp_type == IB_QPT_GSI) || + (qp == rdev->gsi_ctx.gsi_sqp); } static void bnxt_re_dev_stop(struct bnxt_re_dev *rdev) @@ -1160,12 +1173,13 @@ static int bnxt_re_update_gid(struct bnxt_re_dev *rdev) u16 gid_idx, index; int rc = 0; - if (!test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) + if (!ib_device_try_get(&rdev->ibdev)) return 0; if (!sgid_tbl) { - dev_err(rdev_to_dev(rdev), "QPLIB: SGID table not allocated"); - return -EINVAL; + ibdev_err(&rdev->ibdev, "QPLIB: SGID table not allocated"); + rc = -EINVAL; + goto out; } for (index = 0; index < sgid_tbl->active; index++) { @@ -1185,7 +1199,8 @@ static int bnxt_re_update_gid(struct bnxt_re_dev *rdev) rc = bnxt_qplib_update_sgid(sgid_tbl, &gid, gid_idx, rdev->qplib_res.netdev->dev_addr); } - +out: + ib_device_put(&rdev->ibdev); return rc; } @@ -1241,7 +1256,7 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev) /* Get cosq id for this priority */ rc = bnxt_re_query_hwrm_pri2cos(rdev, 0, &cid_map); if (rc) { - dev_warn(rdev_to_dev(rdev), "no cos for p_mask %x\n", prio_map); + ibdev_warn(&rdev->ibdev, "no cos for p_mask %x\n", prio_map); return rc; } /* Parse CoS IDs for app priority */ @@ -1250,8 +1265,8 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev) /* Config BONO. */ rc = bnxt_qplib_map_tc2cos(&rdev->qplib_res, rdev->cosq); if (rc) { - dev_warn(rdev_to_dev(rdev), "no tc for cos{%x, %x}\n", - rdev->cosq[0], rdev->cosq[1]); + ibdev_warn(&rdev->ibdev, "no tc for cos{%x, %x}\n", + rdev->cosq[0], rdev->cosq[1]); return rc; } @@ -1286,8 +1301,8 @@ static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev) sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg); if (rc) { - dev_err(rdev_to_dev(rdev), - "Failed to query HW version, rc = 0x%x", rc); + ibdev_err(&rdev->ibdev, "Failed to query HW version, rc = 0x%x", + rc); return; } rdev->qplib_ctx.hwrm_intf_ver = @@ -1297,15 +1312,35 @@ static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev) le16_to_cpu(resp.hwrm_intf_patch); } -static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev) +static int bnxt_re_ib_init(struct bnxt_re_dev *rdev) +{ + int rc = 0; + u32 event; + + /* Register ib dev */ + rc = bnxt_re_register_ib(rdev); + if (rc) { + pr_err("Failed to register with IB: %#x\n", rc); + return rc; + } + dev_info(rdev_to_dev(rdev), "Device registered successfully"); + ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed, + &rdev->active_width); + set_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS, &rdev->flags); + + event = netif_running(rdev->netdev) && netif_carrier_ok(rdev->netdev) ? + IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; + + bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, event); + + return rc; +} + +static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev) { u8 type; int rc; - if (test_and_clear_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) { - /* Cleanup ib dev */ - bnxt_re_unregister_ib(rdev); - } if (test_and_clear_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags)) cancel_delayed_work_sync(&rdev->worker); @@ -1318,28 +1353,28 @@ static void bnxt_re_ib_unreg(struct bnxt_re_dev *rdev) if (test_and_clear_bit(BNXT_RE_FLAG_RCFW_CHANNEL_EN, &rdev->flags)) { rc = bnxt_qplib_deinit_rcfw(&rdev->rcfw); if (rc) - dev_warn(rdev_to_dev(rdev), - "Failed to deinitialize RCFW: %#x", rc); + ibdev_warn(&rdev->ibdev, + "Failed to deinitialize RCFW: %#x", rc); bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id); - bnxt_qplib_free_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx); + bnxt_qplib_free_ctx(&rdev->qplib_res, &rdev->qplib_ctx); bnxt_qplib_disable_rcfw_channel(&rdev->rcfw); - type = bnxt_qplib_get_ring_type(&rdev->chip_ctx); - bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id, type); + type = bnxt_qplib_get_ring_type(rdev->chip_ctx); + bnxt_re_net_ring_free(rdev, rdev->rcfw.creq.ring_id, type); bnxt_qplib_free_rcfw_channel(&rdev->rcfw); } if (test_and_clear_bit(BNXT_RE_FLAG_GOT_MSIX, &rdev->flags)) { rc = bnxt_re_free_msix(rdev); if (rc) - dev_warn(rdev_to_dev(rdev), - "Failed to free MSI-X vectors: %#x", rc); + ibdev_warn(&rdev->ibdev, + "Failed to free MSI-X vectors: %#x", rc); } bnxt_re_destroy_chip_ctx(rdev); if (test_and_clear_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags)) { rc = bnxt_re_unregister_netdev(rdev); if (rc) - dev_warn(rdev_to_dev(rdev), - "Failed to unregister with netdev: %#x", rc); + ibdev_warn(&rdev->ibdev, + "Failed to unregister with netdev: %#x", rc); } } @@ -1353,31 +1388,28 @@ static void bnxt_re_worker(struct work_struct *work) schedule_delayed_work(&rdev->worker, msecs_to_jiffies(30000)); } -static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) +static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 wqe_mode) { - dma_addr_t *pg_map; - u32 db_offt, ridx; - int pages, vid; - bool locked; + struct bnxt_qplib_creq_ctx *creq; + struct bnxt_re_ring_attr rattr; + u32 db_offt; + int vid; u8 type; int rc; - /* Acquire rtnl lock through out this function */ - rtnl_lock(); - locked = true; - /* Registered a new RoCE device instance to netdev */ + memset(&rattr, 0, sizeof(rattr)); rc = bnxt_re_register_netdev(rdev); if (rc) { - rtnl_unlock(); - pr_err("Failed to register with netedev: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to register with netedev: %#x\n", rc); return -EINVAL; } set_bit(BNXT_RE_FLAG_NETDEV_REGISTERED, &rdev->flags); - rc = bnxt_re_setup_chip_ctx(rdev); + rc = bnxt_re_setup_chip_ctx(rdev, wqe_mode); if (rc) { - dev_err(rdev_to_dev(rdev), "Failed to get chip context\n"); + ibdev_err(&rdev->ibdev, "Failed to get chip context\n"); return -EINVAL; } @@ -1386,7 +1418,8 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) rc = bnxt_re_request_msix(rdev); if (rc) { - pr_err("Failed to get MSI-X vectors: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to get MSI-X vectors: %#x\n", rc); rc = -EINVAL; goto fail; } @@ -1397,31 +1430,36 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) /* Establish RCFW Communication Channel to initialize the context * memory for the function and all child VFs */ - rc = bnxt_qplib_alloc_rcfw_channel(rdev->en_dev->pdev, &rdev->rcfw, + rc = bnxt_qplib_alloc_rcfw_channel(&rdev->qplib_res, &rdev->rcfw, &rdev->qplib_ctx, BNXT_RE_MAX_QPC_COUNT); if (rc) { - pr_err("Failed to allocate RCFW Channel: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to allocate RCFW Channel: %#x\n", rc); goto fail; } - type = bnxt_qplib_get_ring_type(&rdev->chip_ctx); - pg_map = rdev->rcfw.creq.pbl[PBL_LVL_0].pg_map_arr; - pages = rdev->rcfw.creq.pbl[rdev->rcfw.creq.level].pg_count; - ridx = rdev->msix_entries[BNXT_RE_AEQ_IDX].ring_idx; - rc = bnxt_re_net_ring_alloc(rdev, pg_map, pages, type, - BNXT_QPLIB_CREQE_MAX_CNT - 1, - ridx, &rdev->rcfw.creq_ring_id); + + type = bnxt_qplib_get_ring_type(rdev->chip_ctx); + creq = &rdev->rcfw.creq; + rattr.dma_arr = creq->hwq.pbl[PBL_LVL_0].pg_map_arr; + rattr.pages = creq->hwq.pbl[creq->hwq.level].pg_count; + rattr.type = type; + rattr.mode = RING_ALLOC_REQ_INT_MODE_MSIX; + rattr.depth = BNXT_QPLIB_CREQE_MAX_CNT - 1; + rattr.lrid = rdev->msix_entries[BNXT_RE_AEQ_IDX].ring_idx; + rc = bnxt_re_net_ring_alloc(rdev, &rattr, &creq->ring_id); if (rc) { - pr_err("Failed to allocate CREQ: %#x\n", rc); + ibdev_err(&rdev->ibdev, "Failed to allocate CREQ: %#x\n", rc); goto free_rcfw; } db_offt = bnxt_re_get_nqdb_offset(rdev, BNXT_RE_AEQ_IDX); vid = rdev->msix_entries[BNXT_RE_AEQ_IDX].vector; - rc = bnxt_qplib_enable_rcfw_channel(rdev->en_dev->pdev, &rdev->rcfw, + rc = bnxt_qplib_enable_rcfw_channel(&rdev->rcfw, vid, db_offt, rdev->is_virtfn, &bnxt_re_aeq_handler); if (rc) { - pr_err("Failed to enable RCFW channel: %#x\n", rc); + ibdev_err(&rdev->ibdev, "Failed to enable RCFW channel: %#x\n", + rc); goto free_ring; } @@ -1432,24 +1470,27 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) bnxt_re_set_resource_limits(rdev); - rc = bnxt_qplib_alloc_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx, 0, - bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx)); + rc = bnxt_qplib_alloc_ctx(&rdev->qplib_res, &rdev->qplib_ctx, 0, + bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx)); if (rc) { - pr_err("Failed to allocate QPLIB context: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to allocate QPLIB context: %#x\n", rc); goto disable_rcfw; } rc = bnxt_re_net_stats_ctx_alloc(rdev, rdev->qplib_ctx.stats.dma_map, &rdev->qplib_ctx.stats.fw_id); if (rc) { - pr_err("Failed to allocate stats context: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to allocate stats context: %#x\n", rc); goto free_ctx; } rc = bnxt_qplib_init_rcfw(&rdev->rcfw, &rdev->qplib_ctx, rdev->is_virtfn); if (rc) { - pr_err("Failed to initialize RCFW: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to initialize RCFW: %#x\n", rc); goto free_sctx; } set_bit(BNXT_RE_FLAG_RCFW_CHANNEL_EN, &rdev->flags); @@ -1457,13 +1498,15 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) /* Resources based on the 'new' device caps */ rc = bnxt_re_alloc_res(rdev); if (rc) { - pr_err("Failed to allocate resources: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to allocate resources: %#x\n", rc); goto fail; } set_bit(BNXT_RE_FLAG_RESOURCES_ALLOCATED, &rdev->flags); rc = bnxt_re_init_res(rdev); if (rc) { - pr_err("Failed to initialize resources: %#x\n", rc); + ibdev_err(&rdev->ibdev, + "Failed to initialize resources: %#x\n", rc); goto fail; } @@ -1472,59 +1515,40 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev) if (!rdev->is_virtfn) { rc = bnxt_re_setup_qos(rdev); if (rc) - pr_info("RoCE priority not yet configured\n"); + ibdev_info(&rdev->ibdev, + "RoCE priority not yet configured\n"); INIT_DELAYED_WORK(&rdev->worker, bnxt_re_worker); set_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags); schedule_delayed_work(&rdev->worker, msecs_to_jiffies(30000)); } - rtnl_unlock(); - locked = false; - - /* Register ib dev */ - rc = bnxt_re_register_ib(rdev); - if (rc) { - pr_err("Failed to register with IB: %#x\n", rc); - goto fail; - } - set_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags); - dev_info(rdev_to_dev(rdev), "Device registered successfully"); - ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed, - &rdev->active_width); - set_bit(BNXT_RE_FLAG_ISSUE_ROCE_STATS, &rdev->flags); - bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_PORT_ACTIVE); - return 0; free_sctx: bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id); free_ctx: - bnxt_qplib_free_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx); + bnxt_qplib_free_ctx(&rdev->qplib_res, &rdev->qplib_ctx); disable_rcfw: bnxt_qplib_disable_rcfw_channel(&rdev->rcfw); free_ring: - type = bnxt_qplib_get_ring_type(&rdev->chip_ctx); - bnxt_re_net_ring_free(rdev, rdev->rcfw.creq_ring_id, type); + type = bnxt_qplib_get_ring_type(rdev->chip_ctx); + bnxt_re_net_ring_free(rdev, rdev->rcfw.creq.ring_id, type); free_rcfw: bnxt_qplib_free_rcfw_channel(&rdev->rcfw); fail: - if (!locked) - rtnl_lock(); - bnxt_re_ib_unreg(rdev); - rtnl_unlock(); + bnxt_re_dev_uninit(rdev); return rc; } static void bnxt_re_dev_unreg(struct bnxt_re_dev *rdev) { - struct bnxt_en_dev *en_dev = rdev->en_dev; struct net_device *netdev = rdev->netdev; bnxt_re_dev_remove(rdev); if (netdev) - bnxt_re_dev_unprobe(netdev, en_dev); + dev_put(netdev); } static int bnxt_re_dev_reg(struct bnxt_re_dev **rdev, struct net_device *netdev) @@ -1538,23 +1562,62 @@ static int bnxt_re_dev_reg(struct bnxt_re_dev **rdev, struct net_device *netdev) en_dev = bnxt_re_dev_probe(netdev); if (IS_ERR(en_dev)) { if (en_dev != ERR_PTR(-ENODEV)) - pr_err("%s: Failed to probe\n", ROCE_DRV_MODULE_NAME); + ibdev_err(&(*rdev)->ibdev, "%s: Failed to probe\n", + ROCE_DRV_MODULE_NAME); rc = PTR_ERR(en_dev); goto exit; } *rdev = bnxt_re_dev_add(netdev, en_dev); if (!*rdev) { rc = -ENOMEM; - bnxt_re_dev_unprobe(netdev, en_dev); + dev_put(netdev); goto exit; } exit: return rc; } -static void bnxt_re_remove_one(struct bnxt_re_dev *rdev) +static void bnxt_re_remove_device(struct bnxt_re_dev *rdev) { + bnxt_re_dev_uninit(rdev); pci_dev_put(rdev->en_dev->pdev); + bnxt_re_dev_unreg(rdev); +} + +static int bnxt_re_add_device(struct bnxt_re_dev **rdev, + struct net_device *netdev, u8 wqe_mode) +{ + int rc; + + rc = bnxt_re_dev_reg(rdev, netdev); + if (rc == -ENODEV) + return rc; + if (rc) { + pr_err("Failed to register with the device %s: %#x\n", + netdev->name, rc); + return rc; + } + + pci_dev_get((*rdev)->en_dev->pdev); + rc = bnxt_re_dev_init(*rdev, wqe_mode); + if (rc) { + pci_dev_put((*rdev)->en_dev->pdev); + bnxt_re_dev_unreg(*rdev); + } + + return rc; +} + +static void bnxt_re_dealloc_driver(struct ib_device *ib_dev) +{ + struct bnxt_re_dev *rdev = + container_of(ib_dev, struct bnxt_re_dev, ibdev); + + dev_info(rdev_to_dev(rdev), "Unregistering Device"); + + rtnl_lock(); + bnxt_re_remove_device(rdev); + rtnl_unlock(); } /* Handle all deferred netevents tasks */ @@ -1567,21 +1630,23 @@ static void bnxt_re_task(struct work_struct *work) re_work = container_of(work, struct bnxt_re_work, work); rdev = re_work->rdev; - if (re_work->event != NETDEV_REGISTER && - !test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags)) - return; - - switch (re_work->event) { - case NETDEV_REGISTER: - rc = bnxt_re_ib_reg(rdev); + if (re_work->event == NETDEV_REGISTER) { + rc = bnxt_re_ib_init(rdev); if (rc) { - dev_err(rdev_to_dev(rdev), - "Failed to register with IB: %#x", rc); - bnxt_re_remove_one(rdev); - bnxt_re_dev_unreg(rdev); + ibdev_err(&rdev->ibdev, + "Failed to register with IB: %#x", rc); + rtnl_lock(); + bnxt_re_remove_device(rdev); + rtnl_unlock(); goto exit; } - break; + goto exit; + } + + if (!ib_device_try_get(&rdev->ibdev)) + goto exit; + + switch (re_work->event) { case NETDEV_UP: bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_PORT_ACTIVE); @@ -1601,17 +1666,12 @@ static void bnxt_re_task(struct work_struct *work) default: break; } - smp_mb__before_atomic(); - atomic_dec(&rdev->sched_count); + ib_device_put(&rdev->ibdev); exit: + put_device(&rdev->ibdev.dev); kfree(re_work); } -static void bnxt_re_init_one(struct bnxt_re_dev *rdev) -{ - pci_dev_get(rdev->en_dev->pdev); -} - /* * "Notifier chain callback can be invoked for the same chain from * different CPUs at the same time". @@ -1634,6 +1694,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier, struct bnxt_re_dev *rdev; int rc = 0; bool sch_work = false; + bool release = true; real_dev = rdma_vlan_dev_real_dev(netdev); if (!real_dev) @@ -1641,7 +1702,8 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier, rdev = bnxt_re_from_netdev(real_dev); if (!rdev && event != NETDEV_REGISTER) - goto exit; + return NOTIFY_OK; + if (real_dev != netdev) goto exit; @@ -1649,27 +1711,15 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier, case NETDEV_REGISTER: if (rdev) break; - rc = bnxt_re_dev_reg(&rdev, real_dev); - if (rc == -ENODEV) - break; - if (rc) { - pr_err("Failed to register with the device %s: %#x\n", - real_dev->name, rc); - break; - } - bnxt_re_init_one(rdev); - sch_work = true; + rc = bnxt_re_add_device(&rdev, real_dev, + BNXT_QPLIB_WQE_MODE_STATIC); + if (!rc) + sch_work = true; + release = false; break; case NETDEV_UNREGISTER: - /* netdev notifier will call NETDEV_UNREGISTER again later since - * we are still holding the reference to the netdev - */ - if (atomic_read(&rdev->sched_count) > 0) - goto exit; - bnxt_re_ib_unreg(rdev); - bnxt_re_remove_one(rdev); - bnxt_re_dev_unreg(rdev); + ib_unregister_device_queued(&rdev->ibdev); break; default: @@ -1678,19 +1728,21 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier, } if (sch_work) { /* Allocate for the deferred task */ - re_work = kzalloc(sizeof(*re_work), GFP_ATOMIC); + re_work = kzalloc(sizeof(*re_work), GFP_KERNEL); if (re_work) { + get_device(&rdev->ibdev.dev); re_work->rdev = rdev; re_work->event = event; re_work->vlan_dev = (real_dev == netdev ? NULL : netdev); INIT_WORK(&re_work->work, bnxt_re_task); - atomic_inc(&rdev->sched_count); queue_work(bnxt_re_wq, &re_work->work); } } exit: + if (rdev && release) + ib_device_put(&rdev->ibdev); return NOTIFY_DONE; } @@ -1726,36 +1778,21 @@ err_netdev: static void __exit bnxt_re_mod_exit(void) { - struct bnxt_re_dev *rdev, *next; - LIST_HEAD(to_be_deleted); + struct bnxt_re_dev *rdev; - mutex_lock(&bnxt_re_dev_lock); - /* Free all adapter allocated resources */ - if (!list_empty(&bnxt_re_dev_list)) - list_splice_init(&bnxt_re_dev_list, &to_be_deleted); - mutex_unlock(&bnxt_re_dev_lock); - /* - * Cleanup the devices in reverse order so that the VF device - * cleanup is done before PF cleanup - */ - list_for_each_entry_safe_reverse(rdev, next, &to_be_deleted, list) { - dev_info(rdev_to_dev(rdev), "Unregistering Device"); - /* - * Flush out any scheduled tasks before destroying the - * resources - */ - flush_workqueue(bnxt_re_wq); - bnxt_re_dev_stop(rdev); - /* Acquire the rtnl_lock as the L2 resources are freed here */ - rtnl_lock(); - bnxt_re_ib_unreg(rdev); - rtnl_unlock(); - bnxt_re_remove_one(rdev); - bnxt_re_dev_unreg(rdev); - } unregister_netdevice_notifier(&bnxt_re_netdev_notifier); if (bnxt_re_wq) destroy_workqueue(bnxt_re_wq); + list_for_each_entry(rdev, &bnxt_re_dev_list, list) { + /* VF device removal should be called before the removal + * of PF device. Queue VFs unregister first, so that VFs + * shall be removed before the PF during the call of + * ib_unregister_driver. + */ + if (rdev->is_virtfn) + ib_unregister_device(&rdev->ibdev); + } + ib_unregister_driver(RDMA_DRIVER_BNXT_RE); } module_init(bnxt_re_mod_init); |