summaryrefslogtreecommitdiff
path: root/drivers/nvme/host/pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/nvme/host/pci.c')
-rw-r--r--drivers/nvme/host/pci.c59
1 files changed, 35 insertions, 24 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 6fe7af00a1f4..b6f43b738f03 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1141,7 +1141,7 @@ static bool nvme_should_reset(struct nvme_dev *dev, u32 csts)
/* If there is a reset/reinit ongoing, we shouldn't reset again. */
switch (dev->ctrl.state) {
case NVME_CTRL_RESETTING:
- case NVME_CTRL_RECONNECTING:
+ case NVME_CTRL_CONNECTING:
return false;
default:
break;
@@ -1153,12 +1153,6 @@ static bool nvme_should_reset(struct nvme_dev *dev, u32 csts)
if (!(csts & NVME_CSTS_CFS) && !nssro)
return false;
- /* If PCI error recovery process is happening, we cannot reset or
- * the recovery mechanism will surely fail.
- */
- if (pci_channel_offline(to_pci_dev(dev->dev)))
- return false;
-
return true;
}
@@ -1189,6 +1183,13 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
struct nvme_command cmd;
u32 csts = readl(dev->bar + NVME_REG_CSTS);
+ /* If PCI error recovery process is happening, we cannot reset or
+ * the recovery mechanism will surely fail.
+ */
+ mb();
+ if (pci_channel_offline(to_pci_dev(dev->dev)))
+ return BLK_EH_RESET_TIMER;
+
/*
* Reset immediately if the controller is failed
*/
@@ -1215,13 +1216,17 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
* cancellation error. All outstanding requests are completed on
* shutdown, so we return BLK_EH_HANDLED.
*/
- if (dev->ctrl.state == NVME_CTRL_RESETTING) {
+ switch (dev->ctrl.state) {
+ case NVME_CTRL_CONNECTING:
+ case NVME_CTRL_RESETTING:
dev_warn(dev->ctrl.device,
"I/O %d QID %d timeout, disable controller\n",
req->tag, nvmeq->qid);
nvme_dev_disable(dev, false);
nvme_req(req)->flags |= NVME_REQ_CANCELLED;
return BLK_EH_HANDLED;
+ default:
+ break;
}
/*
@@ -1364,18 +1369,14 @@ static int nvme_cmb_qdepth(struct nvme_dev *dev, int nr_io_queues,
static int nvme_alloc_sq_cmds(struct nvme_dev *dev, struct nvme_queue *nvmeq,
int qid, int depth)
{
- if (qid && dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS)) {
- unsigned offset = (qid - 1) * roundup(SQ_SIZE(depth),
- dev->ctrl.page_size);
- nvmeq->sq_dma_addr = dev->cmb_bus_addr + offset;
- nvmeq->sq_cmds_io = dev->cmb + offset;
- } else {
- nvmeq->sq_cmds = dma_alloc_coherent(dev->dev, SQ_SIZE(depth),
- &nvmeq->sq_dma_addr, GFP_KERNEL);
- if (!nvmeq->sq_cmds)
- return -ENOMEM;
- }
+ /* CMB SQEs will be mapped before creation */
+ if (qid && dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS))
+ return 0;
+ nvmeq->sq_cmds = dma_alloc_coherent(dev->dev, SQ_SIZE(depth),
+ &nvmeq->sq_dma_addr, GFP_KERNEL);
+ if (!nvmeq->sq_cmds)
+ return -ENOMEM;
return 0;
}
@@ -1449,10 +1450,17 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
struct nvme_dev *dev = nvmeq->dev;
int result;
+ if (dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS)) {
+ unsigned offset = (qid - 1) * roundup(SQ_SIZE(nvmeq->q_depth),
+ dev->ctrl.page_size);
+ nvmeq->sq_dma_addr = dev->cmb_bus_addr + offset;
+ nvmeq->sq_cmds_io = dev->cmb + offset;
+ }
+
nvmeq->cq_vector = qid - 1;
result = adapter_alloc_cq(dev, qid, nvmeq);
if (result < 0)
- return result;
+ goto release_vector;
result = adapter_alloc_sq(dev, qid, nvmeq);
if (result < 0)
@@ -1466,9 +1474,12 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
return result;
release_sq:
+ dev->online_queues--;
adapter_delete_sq(dev, qid);
release_cq:
adapter_delete_cq(dev, qid);
+ release_vector:
+ nvmeq->cq_vector = -1;
return result;
}
@@ -1903,7 +1914,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
int result, nr_io_queues;
unsigned long size;
- nr_io_queues = num_present_cpus();
+ nr_io_queues = num_possible_cpus();
result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues);
if (result < 0)
return result;
@@ -2288,12 +2299,12 @@ static void nvme_reset_work(struct work_struct *work)
nvme_dev_disable(dev, false);
/*
- * Introduce RECONNECTING state from nvme-fc/rdma transports to mark the
+ * Introduce CONNECTING state from nvme-fc/rdma transports to mark the
* initializing procedure here.
*/
- if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_RECONNECTING)) {
+ if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_CONNECTING)) {
dev_warn(dev->ctrl.device,
- "failed to mark controller RECONNECTING\n");
+ "failed to mark controller CONNECTING\n");
goto out;
}