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target: Add internal READ_INSERT support

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This patch adds READ_INSERT support in target_read_prot_action() that
invokes sbc_dif_generate() when LIO is responsible for generating the
outgoing T10-PI.

Required for supporting fabrics that exchange protection information,
and would like to function with un-protected devices.

Reviewed-by: Martin Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2015-02-08 04:02:08 -08:00
parent fdeab85298
commit 72c0385014
1 changed files with 6 additions and 0 deletions
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6
drivers/target/target_core_transport.c
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@ -1994,6 +1994,12 @@ static bool target_read_prot_action(struct se_cmd *cmd)
}
}
break;
case TARGET_PROT_DIN_INSERT:
if (cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_INSERT)
break;
sbc_dif_generate(cmd);
break;
default:
break;
}