diff options
| author | Hannes Reinecke <hare@suse.de> | 2024-04-30 15:19:27 +0200 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2024-05-01 03:07:20 -0700 |
| commit | adfde7ed0b301ef14c37efe3143a8b26849843f6 (patch) | |
| tree | fd7a2de3ccd1e1514cfba3c6a6ef7b88b372ac82 /drivers/nvme/host/rdma.c | |
| parent | 44350336fd9dab7a337dec686978a160cf1abfc5 (diff) | |
nvme-fabrics: short-circuit reconnect retries
Returning a nvme status from nvme_tcp_setup_ctrl() indicates that the
association was established and we have received a status from the
controller; consequently we should honour the DNR bit. If not any future
reconnect attempts will just return the same error, so we can
short-circuit the reconnect attempts and fail the connection directly.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[dwagner: - extended nvme_should_reconnect]
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme/host/rdma.c')
| -rw-r--r-- | drivers/nvme/host/rdma.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 366f0bb4ebfc..821ab3e0fd3b 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -982,7 +982,8 @@ free_ctrl: kfree(ctrl); } -static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl) +static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl, + int status) { enum nvme_ctrl_state state = nvme_ctrl_state(&ctrl->ctrl); @@ -992,7 +993,7 @@ static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl) return; } - if (nvmf_should_reconnect(&ctrl->ctrl)) { + if (nvmf_should_reconnect(&ctrl->ctrl, status)) { dev_info(ctrl->ctrl.device, "Reconnecting in %d seconds...\n", ctrl->ctrl.opts->reconnect_delay); queue_delayed_work(nvme_wq, &ctrl->reconnect_work, @@ -1104,10 +1105,12 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work) { struct nvme_rdma_ctrl *ctrl = container_of(to_delayed_work(work), struct nvme_rdma_ctrl, reconnect_work); + int ret; ++ctrl->ctrl.nr_reconnects; - if (nvme_rdma_setup_ctrl(ctrl, false)) + ret = nvme_rdma_setup_ctrl(ctrl, false); + if (ret) goto requeue; dev_info(ctrl->ctrl.device, "Successfully reconnected (%d attempts)\n", @@ -1120,7 +1123,7 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work) requeue: dev_info(ctrl->ctrl.device, "Failed reconnect attempt %d\n", ctrl->ctrl.nr_reconnects); - nvme_rdma_reconnect_or_remove(ctrl); + nvme_rdma_reconnect_or_remove(ctrl, ret); } static void nvme_rdma_error_recovery_work(struct work_struct *work) @@ -1145,7 +1148,7 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work) return; } - nvme_rdma_reconnect_or_remove(ctrl); + nvme_rdma_reconnect_or_remove(ctrl, 0); } static void nvme_rdma_error_recovery(struct nvme_rdma_ctrl *ctrl) @@ -2169,6 +2172,7 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work) { struct nvme_rdma_ctrl *ctrl = container_of(work, struct nvme_rdma_ctrl, ctrl.reset_work); + int ret; nvme_stop_ctrl(&ctrl->ctrl); nvme_rdma_shutdown_ctrl(ctrl, false); @@ -2179,14 +2183,15 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work) return; } - if (nvme_rdma_setup_ctrl(ctrl, false)) + ret = nvme_rdma_setup_ctrl(ctrl, false); + if (ret) goto out_fail; return; out_fail: ++ctrl->ctrl.nr_reconnects; - nvme_rdma_reconnect_or_remove(ctrl); + nvme_rdma_reconnect_or_remove(ctrl, ret); } static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = { |