Poll group has a list of the associated ctrlr channels to update
them when the corresponding I/O qpair is disconnected to do path
failover.
Another idea is that poll group has a list of the associated bdev
channels. However, two or more bdev channels may share a single
ctrlr channel and I/O qpair is per ctrlr channel. What we want to do
by this addition is to stop I/O submission to any failed I/O qpair
and choose alternative I/O qpair. Hence we take the first idea.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ia287bd1b803313e66b8505a19694a40133b675f1
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8124
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: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
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