diff options
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_main.c')
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_main.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index 84e4707337a9..6e589f2ca35e 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -862,6 +862,50 @@ err_uar_table_free: return ret; } +static void check_and_get_armed_cq(struct list_head *cq_list, struct ib_cq *cq) +{ + struct hns_roce_cq *hr_cq = to_hr_cq(cq); + unsigned long flags; + + spin_lock_irqsave(&hr_cq->lock, flags); + if (cq->comp_handler) { + if (!hr_cq->is_armed) { + hr_cq->is_armed = 1; + list_add_tail(&hr_cq->node, cq_list); + } + } + spin_unlock_irqrestore(&hr_cq->lock, flags); +} + +void hns_roce_handle_device_err(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_qp *hr_qp; + struct hns_roce_cq *hr_cq; + struct list_head cq_list; + unsigned long flags_qp; + unsigned long flags; + + INIT_LIST_HEAD(&cq_list); + + spin_lock_irqsave(&hr_dev->qp_list_lock, flags); + list_for_each_entry(hr_qp, &hr_dev->qp_list, node) { + spin_lock_irqsave(&hr_qp->sq.lock, flags_qp); + if (hr_qp->sq.tail != hr_qp->sq.head) + check_and_get_armed_cq(&cq_list, hr_qp->ibqp.send_cq); + spin_unlock_irqrestore(&hr_qp->sq.lock, flags_qp); + + spin_lock_irqsave(&hr_qp->rq.lock, flags_qp); + if ((!hr_qp->ibqp.srq) && (hr_qp->rq.tail != hr_qp->rq.head)) + check_and_get_armed_cq(&cq_list, hr_qp->ibqp.recv_cq); + spin_unlock_irqrestore(&hr_qp->rq.lock, flags_qp); + } + + list_for_each_entry(hr_cq, &cq_list, node) + hns_roce_cq_completion(hr_dev, hr_cq->cqn); + + spin_unlock_irqrestore(&hr_dev->qp_list_lock, flags); +} + int hns_roce_init(struct hns_roce_dev *hr_dev) { int ret; @@ -932,6 +976,9 @@ int hns_roce_init(struct hns_roce_dev *hr_dev) } } + INIT_LIST_HEAD(&hr_dev->qp_list); + spin_lock_init(&hr_dev->qp_list_lock); + ret = hns_roce_register_device(hr_dev); if (ret) goto error_failed_register_device; |