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authorNicholas Bellinger <nab@linux-iscsi.org>2014-01-18 09:33:48 +0000
committerNicholas Bellinger <nab@linux-iscsi.org>2014-01-19 02:21:55 +0000
commit42201b557471f2fef2e9e028b50a773d99ffc401 (patch)
treeb24fbaf77eed5cf01d384137a9d143981c6d31fd /drivers/target/target_core_file.h
parent0f5e2ec46dd64579c0770f3822764f94db4fa465 (diff)
target/file: Add DIF protection support to fd_execute_rw
This patch adds support for DIF protection into fd_execute_rw() code for WRITE/READ I/O using sbc_dif_verify_[write,read]() logic. It adds fd_do_prot_rw() for handling interface with FILEIO PI, and uses a locally allocated fd_prot->prot_buf + fd_prot->prot_sg for interacting with SBC DIF verify emulation code. 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_file.h')
-rw-r--r--drivers/target/target_core_file.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h
index 583691ebcbe0..97e5e7dd4259 100644
--- a/drivers/target/target_core_file.h
+++ b/drivers/target/target_core_file.h
@@ -18,6 +18,11 @@
#define FDBD_HAS_BUFFERED_IO_WCE 0x04
#define FDBD_FORMAT_UNIT_SIZE 2048
+struct fd_prot {
+ unsigned char *prot_buf;
+ struct scatterlist *prot_sg;
+ u32 prot_sg_nents;
+};
struct fd_dev {
struct se_device dev;