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| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2015-08-14 05:47:53 +0300 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-08-27 04:05:39 +0300 |
| commit | 2cb79266d6b229dbebd31fe114af1bdab25c8076 (patch) | |
| tree | 1b90c42981d18836586209f618330d9617698eb2 /drivers/scsi/cxlflash/common.h | |
| parent | 65be2c79acc3aa0f9c0e8d4871f5a451d854465a (diff) | |
| download | linux-2cb79266d6b229dbebd31fe114af1bdab25c8076.tar.xz | |
cxlflash: Virtual LUN support
Add support for physical LUN segmentation (virtual LUNs) to device
driver supporting the IBM CXL Flash adapter. This patch allows user
space applications to virtually segment a physical LUN into N virtual
LUNs, taking advantage of the translation features provided by this
adapter.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/cxlflash/common.h')
| -rw-r--r-- | drivers/scsi/cxlflash/common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h index d3e54e61c7a5..1c56037146e1 100644 --- a/drivers/scsi/cxlflash/common.h +++ b/drivers/scsi/cxlflash/common.h @@ -116,6 +116,9 @@ struct cxlflash_cfg { atomic_t num_user_contexts; + /* Parameters that are LUN table related */ + int last_lun_index[CXLFLASH_NUM_FC_PORTS]; + int promote_lun_index; struct list_head lluns; /* list of llun_info structs */ wait_queue_head_t tmf_waitq; @@ -200,5 +203,6 @@ int cxlflash_ioctl(struct scsi_device *, int, void __user *); void cxlflash_stop_term_user_contexts(struct cxlflash_cfg *); int cxlflash_mark_contexts_error(struct cxlflash_cfg *); void cxlflash_term_local_luns(struct cxlflash_cfg *); +void cxlflash_restore_luntable(struct cxlflash_cfg *); #endif /* ifndef _CXLFLASH_COMMON_H */ |