nvme_bdev passes not spdk_bdev_io but nvme_bdev_io pointer to I/O
submit functions, and gets spdk_bdev_io pointer from nvme_bdev_io
pointer in its completion callback functions.
This is very clean because spdk_bdev_io is processed by the generic bdev
layer and nvme_bdev_io is processed by the NVMe bdev module.
The patch series changes ocssd_bdev to pass not spdk_bdev_io but
bdev_ocssd_io pointer to its I/O submit functions.
This patch is the first of the series and add ocssd_bdev parameter
to I/O submit functions. ocssd_bdev pointer is got from
bdev_io->bdev->ctxt. Hence this patch removes one dependency on
spdk_bdev_io.
One noticeable small change is that get_zone_info() gets zone_info
from not bdev_io->bdev but nvme_bdev->disk to advance removing
the dependency on spdk_bdev_io.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ia3127ceb1fc8923e321a1404edbb19b63f5fde5d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5248
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
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