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path: root/drivers/nvme/host/pci.c
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Diffstat (limited to 'drivers/nvme/host/pci.c')
-rw-r--r--drivers/nvme/host/pci.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 2a8708c9ac18..f562154551ce 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -464,7 +464,7 @@ static int nvme_pci_map_queues(struct blk_mq_tag_set *set)
* affinity), so use the regular blk-mq cpu mapping
*/
map->queue_offset = qoff;
- if (i != HCTX_TYPE_POLL)
+ if (i != HCTX_TYPE_POLL && offset)
blk_mq_pci_map_queues(map, to_pci_dev(dev->dev), offset);
else
blk_mq_map_queues(map);
@@ -1257,7 +1257,6 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
struct nvme_dev *dev = nvmeq->dev;
struct request *abort_req;
struct nvme_command cmd;
- bool shutdown = false;
u32 csts = readl(dev->bar + NVME_REG_CSTS);
/* If PCI error recovery process is happening, we cannot reset or
@@ -1294,17 +1293,18 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
* shutdown, so we return BLK_EH_DONE.
*/
switch (dev->ctrl.state) {
- case NVME_CTRL_DELETING:
- shutdown = true;
- /* fall through */
case NVME_CTRL_CONNECTING:
- case NVME_CTRL_RESETTING:
+ nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_DELETING);
+ /* fall through */
+ case NVME_CTRL_DELETING:
dev_warn_ratelimited(dev->ctrl.device,
"I/O %d QID %d timeout, disable controller\n",
req->tag, nvmeq->qid);
- nvme_dev_disable(dev, shutdown);
+ nvme_dev_disable(dev, true);
nvme_req(req)->flags |= NVME_REQ_CANCELLED;
return BLK_EH_DONE;
+ case NVME_CTRL_RESETTING:
+ return BLK_EH_RESET_TIMER;
default:
break;
}
@@ -2376,7 +2376,7 @@ static void nvme_pci_disable(struct nvme_dev *dev)
static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
{
- bool dead = true;
+ bool dead = true, freeze = false;
struct pci_dev *pdev = to_pci_dev(dev->dev);
mutex_lock(&dev->shutdown_lock);
@@ -2384,8 +2384,10 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
u32 csts = readl(dev->bar + NVME_REG_CSTS);
if (dev->ctrl.state == NVME_CTRL_LIVE ||
- dev->ctrl.state == NVME_CTRL_RESETTING)
+ dev->ctrl.state == NVME_CTRL_RESETTING) {
+ freeze = true;
nvme_start_freeze(&dev->ctrl);
+ }
dead = !!((csts & NVME_CSTS_CFS) || !(csts & NVME_CSTS_RDY) ||
pdev->error_state != pci_channel_io_normal);
}
@@ -2394,10 +2396,8 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
* Give the controller a chance to complete all entered requests if
* doing a safe shutdown.
*/
- if (!dead) {
- if (shutdown)
- nvme_wait_freeze_timeout(&dev->ctrl, NVME_IO_TIMEOUT);
- }
+ if (!dead && shutdown && freeze)
+ nvme_wait_freeze_timeout(&dev->ctrl, NVME_IO_TIMEOUT);
nvme_stop_queues(&dev->ctrl);
@@ -2492,6 +2492,7 @@ static void nvme_reset_work(struct work_struct *work)
*/
if (dev->ctrl.ctrl_config & NVME_CC_ENABLE)
nvme_dev_disable(dev, false);
+ nvme_sync_queues(&dev->ctrl);
mutex_lock(&dev->shutdown_lock);
result = nvme_pci_enable(dev);