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lib/iscsi: Factor out operation to open each LUN for connection

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This is a preparation to the subsequent patches.

Subsequent patches will introduce struct spdk_iscsi_lun
to refine LUN hotplug process and fix critical issues of it.

This change will make us easy to introduce struct spdk_iscsi_lun.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I75db59d88bb09ee2ea94e8c02e0e87003352850c
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/476112
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
This commit is contained in:
Shuhei Matsumoto 2019-11-28 11:22:25 -05:00 committed by Tomasz Zawadzki
parent 22adcd1487
commit 3f1e18cbbf
1 changed files with 24 additions and 10 deletions
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34
lib/iscsi/conn.c
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@ -506,12 +506,34 @@ iscsi_conn_remove_lun(struct spdk_scsi_lun *lun, void *remove_ctx)
_iscsi_conn_remove_lun, ctx);
}
static int
iscsi_conn_open_lun(struct spdk_iscsi_conn *conn, int lun_id,
struct spdk_scsi_lun *lun)
{
int rc;
struct spdk_scsi_lun_desc *desc;
rc = spdk_scsi_lun_open(lun, iscsi_conn_remove_lun, conn, &desc);
if (rc != 0) {
return rc;
}
rc = spdk_scsi_lun_allocate_io_channel(desc);
if (rc != 0) {
spdk_scsi_lun_close(desc);
return rc;
}
conn->open_lun_descs[lun_id] = desc;
return 0;
}
static void
iscsi_conn_open_luns(struct spdk_iscsi_conn *conn)
{
int i, rc;
struct spdk_scsi_lun *lun;
struct spdk_scsi_lun_desc *desc;
for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) {
lun = spdk_scsi_dev_get_lun(conn->dev, i);
@ -519,18 +541,10 @@ iscsi_conn_open_luns(struct spdk_iscsi_conn *conn)
continue;
}
rc = spdk_scsi_lun_open(lun, iscsi_conn_remove_lun, conn, &desc);
rc = iscsi_conn_open_lun(conn, i, lun);
if (rc != 0) {
goto error;
}
rc = spdk_scsi_lun_allocate_io_channel(desc);
if (rc != 0) {
spdk_scsi_lun_close(desc);
goto error;
}
conn->open_lun_descs[i] = desc;
}
return;