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authorNicholas Bellinger <nab@linux-iscsi.org>2014-01-07 22:44:57 +0000
committerNicholas Bellinger <nab@linux-iscsi.org>2014-01-18 09:53:12 +0000
commit41861fa831afd4b5006f0042e1f701360330351e (patch)
tree57818e9a7b160cd6b0bb17e74deb9565d238bcc5 /drivers/target/Kconfig
parent499bf77b0169605a23c38351e3849066fe696877 (diff)
target/sbc: Add DIF TYPE1+TYPE3 read/write verify emulation
This patch adds support for DIF read/write verify emulation for TARGET_DIF_TYPE1_PROT + TARGET_DIF_TYPE3_PROT operation. This includes sbc_dif_verify_write() + sbc_dif_verify_read() calls accessable by backend drivers to perform DIF verify for SGL based data and protection information. Also included is sbc_dif_copy_prot() logic to copy protection information to/from backend provided protection SGLs. Based on scsi_debug.c DIF TYPE1+TYPE3 emulation. v2 changes: - Select CRC_T10DIF for TARGET_CORE in Kconfig (Fengguang) - Drop IP checksum logic from sbc_dif_v1_verify (MKP) - Fix offset on app_tag = 0xffff in sbc_dif_verify_read() 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/Kconfig')
-rw-r--r--drivers/target/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig
index 18303686eb58..50aad2eeed6e 100644
--- a/drivers/target/Kconfig
+++ b/drivers/target/Kconfig
@@ -3,6 +3,7 @@ menuconfig TARGET_CORE
tristate "Generic Target Core Mod (TCM) and ConfigFS Infrastructure"
depends on SCSI && BLOCK
select CONFIGFS_FS
+ select CRC_T10DIF
default n
help
Say Y or M here to enable the TCM Storage Engine and ConfigFS enabled

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