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authorNicholas Bellinger <nab@linux-iscsi.org>2014-04-02 14:19:09 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2014-04-07 01:48:56 -0700
commit66a3d5bc47d2973820816226e957db9e85285455 (patch)
tree9af631288b3701492f458d879516a4cda7e658cb /include/target/target_core_backend.h
parent2d3359832513ac62a8bd6d2bffbb2c5bdd29aad3 (diff)
downloadlinux-stericsson-66a3d5bc47d2973820816226e957db9e85285455.tar.gz
target/sbc: Add sbc_dif_generate software emulation
This patch adds WRITE_INSERT emulation within target-core using TYPE1 / TYPE3 PI modes in sbc_dif_generate() code. This is useful in order for existing legacy fabrics that do not support protection offloads to interact with backend devices that currently have T10 PI enabled. v2 changes: - Rename to sbc_dif_generate() (Sagi) Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target/target_core_backend.h')
-rw-r--r--include/target/target_core_backend.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 7020e33e742e..0a36c6cb93b2 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -73,6 +73,7 @@ sense_reason_t sbc_execute_unmap(struct se_cmd *cmd,
sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv,
sector_t lba, sector_t nolb),
void *priv);
+void sbc_dif_generate(struct se_cmd *);
sense_reason_t sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int,
unsigned int, struct scatterlist *, int);
sense_reason_t sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int,