Spdk/module/bdev/nvme
Shuhei Matsumoto a76bbe3553 bdev/nvme: Disconnect and then free I/O qpair in a ctrlr reset sequence
As we do when deleting ctrlr_channel, disconnect and then free I/O
qpair in a ctrlr reset sequence.

Deleting ctrlr_channel and resetting ctrlr_channel may cause conflicts.
This patch processes such conflicts correctly.

If destroy_ctrlr_channel_cb() is executed between pending and executing
reset_destroy_qpair(), reset_destroy_qpair() is not executed because
ctrlr_channel is not found. In this case, destroy_qpair_channel()
starts disconnecting qpair and deletes ctrlr_channel. Then
disconnected_qpair_cb() releases a reference to poll group.

If destroy_ctrlr_channel_cb() is excuted between executing reset_destroy_qpair()
and disconnected_qpair_cb(), destroy_ctrlr_channel_cb() skips
ctrlr_channel for a reset sequence.

Change-Id: I1f49f74b94aefbea178680aa53ded3a12876c676
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10766
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-03-21 10:49:11 +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: Alloc qpair context dynamically on nvme_ctrlr_channel 2022-03-15 09:05:09 +00:00
bdev_nvme.c bdev/nvme: Disconnect and then free I/O qpair in a ctrlr reset sequence 2022-03-21 10:49:11 +00:00
bdev_nvme.h bdev/nvme: Disconnect and then free I/O qpair in a ctrlr reset sequence 2022-03-21 10:49:11 +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