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bdev/nvme: Get failover path information by NOTICELOG

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We do not know failover is attempted from which path to which path.
Get these information by NOTICELOG.

Failover or reset is serialized by the flag ctrlr->resetting and
ctrlr->failover_in_progress.

Hence it is enough to add such information only to start.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I97400c048b39dc1b70e6aeb71643b5ed1ca23e72
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5695
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
This commit is contained in:
Shuhei Matsumoto 2020-12-22 16:35:03 +09:00 committed by Tomasz Zawadzki
parent 974c70e63f
commit 1f14fea3b4
1 changed files with 5 additions and 0 deletions
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5
module/bdev/nvme/bdev_nvme.c
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@ -546,6 +546,11 @@ bdev_nvme_failover(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, bool remove)
nvme_bdev_ctrlr->resetting = true;
if (next_trid) {
assert(curr_trid->trid.trtype != SPDK_NVME_TRANSPORT_PCIE);
SPDK_NOTICELOG("Start failover from %s:%s to %s:%s\n", curr_trid->trid.traddr,
curr_trid->trid.trsvcid, next_trid->trid.traddr, next_trid->trid.trsvcid);
nvme_bdev_ctrlr->failover_in_progress = true;
spdk_nvme_ctrlr_fail(nvme_bdev_ctrlr->ctrlr);
nvme_bdev_ctrlr->connected_trid = &next_trid->trid;