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authorKeith Busch <kbusch@kernel.org>2019-09-05 08:09:33 -0600
committerKeith Busch <kbusch@kernel.org>2019-10-14 23:21:49 +0900
commit92b98e88d59ab17e65f261fbb5db272143ccf414 (patch)
treeda1fb095aa9298575522863d8c0832eb901d3e75 /drivers/nvme/host
parentnvme: Remove ADMIN_ONLY state (diff)
downloadlinux-dev-92b98e88d59ab17e65f261fbb5db272143ccf414.tar.xz
linux-dev-92b98e88d59ab17e65f261fbb5db272143ccf414.zip
nvme: Restart request timers in resetting state
A controller in the resetting state has not yet completed its recovery actions. The pci and fc transports were already handling this, so update the remaining transports to not attempt additional recovery in this state. Instead, just restart the request timer. Tested-by: Edmund Nadolski <edmund.nadolski@intel.com> Reviewed-by: James Smart <james.smart@broadcom.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme/host')
-rw-r--r--drivers/nvme/host/rdma.c8
-rw-r--r--drivers/nvme/host/tcp.c8
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 4d280160dd3f..f19a28b4e997 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1701,6 +1701,14 @@ nvme_rdma_timeout(struct request *rq, bool reserved)
dev_warn(ctrl->ctrl.device, "I/O %d QID %d timeout\n",
rq->tag, nvme_rdma_queue_idx(queue));
+ /*
+ * Restart the timer if a controller reset is already scheduled. Any
+ * timed out commands would be handled before entering the connecting
+ * state.
+ */
+ if (ctrl->ctrl.state == NVME_CTRL_RESETTING)
+ return BLK_EH_RESET_TIMER;
+
if (ctrl->ctrl.state != NVME_CTRL_LIVE) {
/*
* Teardown immediately if controller times out while starting
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 385a5212c10f..33de2fddfbb2 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -2044,6 +2044,14 @@ nvme_tcp_timeout(struct request *rq, bool reserved)
struct nvme_tcp_ctrl *ctrl = req->queue->ctrl;
struct nvme_tcp_cmd_pdu *pdu = req->pdu;
+ /*
+ * Restart the timer if a controller reset is already scheduled. Any
+ * timed out commands would be handled before entering the connecting
+ * state.
+ */
+ if (ctrl->ctrl.state == NVME_CTRL_RESETTING)
+ return BLK_EH_RESET_TIMER;
+
dev_warn(ctrl->ctrl.device,
"queue %d: timeout request %#x type %d\n",
nvme_tcp_queue_id(req->queue), rq->tag, pdu->hdr.type);