diff options
| author | Hannes Reinecke <hare@suse.de> | 2013-12-17 09:18:49 +0100 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-01-10 06:48:17 +0100 |
| commit | c66094bf325ee406b92298d73089ee25484a0263 (patch) | |
| tree | cfa2fb231dbd3e120ad2d75f96c250c24233978a /include | |
| parent | target_core_spc: Include target device descriptor in VPD page 83 (diff) | |
| download | linux-c66094bf325ee406b92298d73089ee25484a0263.tar.xz linux-c66094bf325ee406b92298d73089ee25484a0263.zip | |
target_core_alua: Referrals infrastructure
Add infrastructure for referrals.
v2 changes:
- Fix unsigned long long division in core_alua_state_lba_dependent on
32-bit (Fengguang + Chen + Hannes)
- Fix compile warning in core_alua_state_lba_dependent (nab)
- Convert segment_* + sectors variables in core_alua_state_lba_dependent
to u64 (Hannes)
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/scsi/scsi.h | 1 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 18 |
2 files changed, 19 insertions, 0 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 66d42edfb3fc..0a4edfe8af51 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -155,6 +155,7 @@ enum scsi_timeouts { /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 #define SAI_GET_LBA_STATUS 0x12 +#define SAI_REPORT_REFERRALS 0x13 /* values for VARIABLE_LENGTH_CMD service action codes * see spc4r17 Section D.3.5, table D.7 and D.8 */ #define VLC_SA_RECEIVE_CREDENTIAL 0x1800 diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 6c8001516c6d..1ba19a4bec33 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -247,10 +247,28 @@ typedef enum { struct se_cmd; +struct t10_alua_lba_map_member { + struct list_head lba_map_mem_list; + int lba_map_mem_alua_state; + int lba_map_mem_alua_pg_id; +}; + +struct t10_alua_lba_map { + u64 lba_map_first_lba; + u64 lba_map_last_lba; + struct list_head lba_map_list; + struct list_head lba_map_mem_list; +}; + struct t10_alua { /* ALUA Target Port Group ID */ u16 alua_tg_pt_gps_counter; u32 alua_tg_pt_gps_count; + /* Referrals support */ + spinlock_t lba_map_lock; + u32 lba_map_segment_size; + u32 lba_map_segment_multiplier; + struct list_head lba_map_list; spinlock_t tg_pt_gps_lock; struct se_device *t10_dev; /* Used for default ALUA Target Port Group */ |