Spdk/module/bdev
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
..
aio bdev/aio: Use bdev_open_ext() for rescan instead of bdev_get_by_name() 2022-04-04 09:57:43 +00:00
compress bdev/compress: Update error handling in IO submission path 2022-03-31 09:34:52 +00:00
crypto module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
delay bdev/delay: Find delay_bdev directly from g_delay_node list 2022-04-04 09:57:43 +00:00
error bdev/error: Use bdev_open_ext() to inject error instead of bdev_get_by_name() 2022-04-04 09:57:43 +00:00
ftl module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
gpt vbdev_gpt: Report memory domains 2022-04-04 09:57:56 +00:00
iscsi module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
lvol vbdev_lvol: Report memory domains 2022-05-16 10:14:26 +00:00
malloc module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
null bdev/null: Use bdev_open_ext() for resize instead of bdev_get_by_name() 2022-04-04 09:57:43 +00:00
nvme bdev/nvme: Disable automatic failback in multipath mode 2022-05-17 12:54:45 +00:00
ocf bdev/ocf: Implement ENOMEM handling when submitting IO to base device 2022-05-16 10:15:27 +00:00
passthru module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
pmem bdev/pmem: add support for IO_TYPE_FLUSH 2022-04-11 07:43:23 +00:00
raid bdev/raid: stop the raid bdev in raid_bdev_destruct 2022-04-13 08:33:19 +00:00
rbd bdev/rbd: Use bdev_open_ext() for resize instead of bdev_get_by_name() 2022-04-04 09:57:43 +00:00
split bdev/split: Use bdev_open_ext() for creation instead of bdev_get_by_name() 2022-04-04 09:57:43 +00:00
uring module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
virtio module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
zone_block module/bdev: Use spdk_bdev_unregister_by_name() if possible 2022-04-04 09:57:43 +00:00
Makefile bdev: move bdev_rpc library contents 2020-09-25 11:43:42 +00:00