Spdk/module/bdev/nvme
Shuhei Matsumoto 00d46b80b2 bdev/nvme: Disable automatic failback in multipath mode
By default, failback to the preferred I/O path is done automatically
if it is restored. Some users may want to keep using the backup I/O
path even if the preferred I/O path is restored. In this case,
bdev_nvme_set_preferred_path can be used to do manual failback.

We may be able to clear/fill I/O path cache more strictly but it will
be complicated and have bugs. This patch does the minimal change,
just skips an apparent case.

Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: I78fe5faee6ff04e88ae3d7c6be6da1c20637c912
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12431
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-05-17 12:54:45 +00:00
..
bdev_nvme_cuse_rpc.c bdev/nvme: Rename nvme_bdev_ctrlr by nvme_ctrlr 2021-07-13 08:57:33 +00:00
bdev_nvme_rpc.c bdev/nvme: Disable automatic failback in multipath mode 2022-05-17 12:54:45 +00:00
bdev_nvme.c bdev/nvme: Disable automatic failback in multipath mode 2022-05-17 12:54:45 +00:00
bdev_nvme.h bdev/nvme: Disable automatic failback in multipath mode 2022-05-17 12:54:45 +00:00
Makefile so_ver: increase all major versions 2022-01-31 15:29:56 +00:00
nvme_rpc.c bdev/nvme: Remove common.h/common.c 2021-09-08 08:06:39 +00:00
vbdev_opal_rpc.c bdev/nvme: Remove common.h/common.c 2021-09-08 08:06:39 +00:00
vbdev_opal.c bdev/nvme: Use an RB_TREE to hold namespaces in the controller 2021-10-18 07:49:52 +00:00
vbdev_opal.h bdev/nvme: Remove common.h/common.c 2021-09-08 08:06:39 +00:00