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scsi: Make scsi_lun_free_io_channel public

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IO channel for LUN is used for hot removal as it is emphasized in the
previous patches.

In iSCSI, a SCSI device has multiple LUNs. So freeing only the IO channel
of a LUN must be possible.

Change-Id: I5b355200b4e173512a5aa4b7351534faf8839eef
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/417197
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This commit is contained in:
Shuhei Matsumoto 2018-06-28 11:42:52 +09:00 committed by Jim Harris
parent c645cc69ab
commit 1e5705ee6f
2 changed files with 16 additions and 2 deletions
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16
include/spdk/scsi.h
View File

@ -457,6 +457,22 @@ void spdk_scsi_task_copy_status(struct spdk_scsi_task *dst, struct spdk_scsi_tas
*/
void spdk_scsi_task_process_null_lun(struct spdk_scsi_task *task);
/**
* Allocate I/O channel for the LUN
*
* \param lun Logical unit.
*
* \return 0 on success, -1 on failure.
*/
int spdk_scsi_lun_allocate_io_channel(struct spdk_scsi_lun *lun);
/**
* Free I/O channel from the logical unit
*
* \param lun Logical unit.
*/
void spdk_scsi_lun_free_io_channel(struct spdk_scsi_lun *lun);
#ifdef __cplusplus
}
#endif

2
lib/scsi/scsi_internal.h
View File

@ -127,8 +127,6 @@ void spdk_scsi_lun_execute_task(struct spdk_scsi_lun *lun, struct spdk_scsi_task
int spdk_scsi_lun_task_mgmt_execute(struct spdk_scsi_task *task, enum spdk_scsi_task_func func);
void spdk_scsi_lun_complete_task(struct spdk_scsi_lun *lun, struct spdk_scsi_task *task);
void spdk_scsi_lun_complete_mgmt_task(struct spdk_scsi_lun *lun, struct spdk_scsi_task *task);
int spdk_scsi_lun_allocate_io_channel(struct spdk_scsi_lun *lun);
void spdk_scsi_lun_free_io_channel(struct spdk_scsi_lun *lun);
bool spdk_scsi_lun_has_pending_tasks(const struct spdk_scsi_lun *lun);
struct spdk_scsi_dev *spdk_scsi_dev_get_list(void);