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| author |   Nicholas Bellinger <nab@linux-iscsi.org> | 2014-01-07 23:24:14 +0000 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-01-19 02:22:05 +0000 |
| commit | d7e8eb5d9216c6a4f963aa6d07e29680af17d739 (patch) | |
| tree | 2697c2a5e59174ce97e5e393b01edd32b8a55462 /drivers/target/target_core_rd.h | |
| parent | target/rd: Refactor rd_build_device_space + rd_release_device_space (diff) | |
| download | linux-dev-d7e8eb5d9216c6a4f963aa6d07e29680af17d739.tar.xz linux-dev-d7e8eb5d9216c6a4f963aa6d07e29680af17d739.zip | |
target/rd: Add support for protection SGL setup + release
This patch adds rd_build_prot_space() + rd_release_prot_space() logic
to setup + release protection information scatterlists.
It also adds rd_init_prot() + rd_free_prot() se_subsystem_api
callbacks used by target core code for setup + release of
protection information.
v2 changes:
- Drop unused sg_table from rd_release_prot_space (Wei)
- Drop rd_release_prot_space call from rd_free_device
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_rd.h')
| -rw-r--r-- | drivers/target/target_core_rd.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h index 1789d1e14395..cc46a6a89b38 100644 --- a/drivers/target/target_core_rd.h +++ b/drivers/target/target_core_rd.h @@ -33,8 +33,12 @@ struct rd_dev { u32 rd_page_count; /* Number of SG tables in sg_table_array */ u32 sg_table_count; + /* Number of SG tables in sg_prot_array */ + u32 sg_prot_count; /* Array of rd_dev_sg_table_t containing scatterlists */ struct rd_dev_sg_table *sg_table_array; + /* Array of rd_dev_sg_table containing protection scatterlists */ + struct rd_dev_sg_table *sg_prot_array; /* Ramdisk HBA device is connected to */ struct rd_host *rd_host; } ____cacheline_aligned; |