This is another preparation to disconnect qpair asynchronously.
Add nvme_qpair object and move the qpair and poll_group pointers and
the io_path_list list from nvme_ctrlr_channel to nvme_qpair. nvme_qpair
is allocated dynamically when creating nvme_ctrlr_channel, and
nvme_ctrlr_channel points to nvme_qpair.
We want to keep the times of references at I/O path. Change nvme_io_path
to point nvme_qpair instead of nvme_ctrlr_channel, and add
nvme_ctrlr_channel pointer to nvme_qpair.
nvme_ctrlr_channel may be freed earlier than nvme_qpair. nvme_poll_group
lists nvme_qpair instead of nvme_ctrlr_channel and nvme_qpair has a
pointer to nvme_ctrlr.
By using the nvme_ctrlr pointer of the nvme_qpair, a helper function
nvme_ctrlr_channel_get_ctrlr() is not necessary any more. Remove it.
Change-Id: Ib3f579d3441f31b9db7d3844ec56c49e2bb53a5d
Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11832
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
c113e4cdca