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authorKeith Busch <keith.busch@intel.com>2016-10-12 09:22:16 -0600
committerJens Axboe <axboe@fb.com>2016-10-12 09:22:16 -0600
commit7065906096273b39b90a512a7170a6697ed94b23 (patch)
tree57769b9491ac5de9ce2db7e9670ed720878bb455 /drivers/nvme
parent0df1e4f5e0e831670f43bd198623b303ba09cbc0 (diff)
nvme: Delete created IO queues on reset
The driver was decrementing the online_queues prior to attempting to delete those IO queues, so the driver ended up not requesting the controller delete any. This patch saves the online_queues prior to suspending them, and adds that parameter for deleting io queues. Fixes: c21377f8 ("nvme: Suspend all queues before deletion") Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/pci.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 68ef1875e8a8..94da3a47775c 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1510,9 +1510,9 @@ static int nvme_delete_queue(struct nvme_queue *nvmeq, u8 opcode)
return 0;
}
-static void nvme_disable_io_queues(struct nvme_dev *dev)
+static void nvme_disable_io_queues(struct nvme_dev *dev, int queues)
{
- int pass, queues = dev->online_queues - 1;
+ int pass;
unsigned long timeout;
u8 opcode = nvme_admin_delete_sq;
@@ -1648,7 +1648,7 @@ static void nvme_pci_disable(struct nvme_dev *dev)
static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
{
- int i;
+ int i, queues;
u32 csts = -1;
del_timer_sync(&dev->watchdog_timer);
@@ -1659,6 +1659,7 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
csts = readl(dev->bar + NVME_REG_CSTS);
}
+ queues = dev->online_queues - 1;
for (i = dev->queue_count - 1; i > 0; i--)
nvme_suspend_queue(dev->queues[i]);
@@ -1670,7 +1671,7 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
if (dev->queue_count)
nvme_suspend_queue(dev->queues[0]);
} else {
- nvme_disable_io_queues(dev);
+ nvme_disable_io_queues(dev, queues);
nvme_disable_admin_queue(dev, shutdown);
}
nvme_pci_disable(dev);