diff options
Diffstat (limited to 'drivers/nvme/host/pci.c')
| -rw-r--r-- | drivers/nvme/host/pci.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index a363fecb8d82..212f7e0db84f 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -846,10 +846,8 @@ static irqreturn_t nvme_irq_check(int irq, void *data) return IRQ_NONE; } -static int nvme_poll(struct blk_mq_hw_ctx *hctx, unsigned int tag) +static int __nvme_poll(struct nvme_queue *nvmeq, unsigned int tag) { - struct nvme_queue *nvmeq = hctx->driver_data; - if (nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) { spin_lock_irq(&nvmeq->q_lock); __nvme_process_cq(nvmeq, &tag); @@ -862,6 +860,13 @@ static int nvme_poll(struct blk_mq_hw_ctx *hctx, unsigned int tag) return 0; } +static int nvme_poll(struct blk_mq_hw_ctx *hctx, unsigned int tag) +{ + struct nvme_queue *nvmeq = hctx->driver_data; + + return __nvme_poll(nvmeq, tag); +} + static void nvme_pci_submit_async_event(struct nvme_ctrl *ctrl, int aer_idx) { struct nvme_dev *dev = to_nvme_dev(ctrl); @@ -960,6 +965,16 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) struct nvme_command cmd; /* + * Did we miss an interrupt? + */ + if (__nvme_poll(nvmeq, req->tag)) { + dev_warn(dev->ctrl.device, + "I/O %d QID %d timeout, completion polled\n", + req->tag, nvmeq->qid); + return BLK_EH_HANDLED; + } + + /* * Shutdown immediately if controller times out while starting. The * reset work will see the pci device disabled when it gets the forced * cancellation error. All outstanding requests are completed on |