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authorChristoph Hellwig <hch@infradead.org>2012-05-20 11:59:14 -0400
committerNicholas Bellinger <nab@linux-iscsi.org>2012-07-16 17:25:56 -0700
commitd6e0175cf3f9737a760482d185bb73566bcc9331 (patch)
tree99ca8361ebc8c4e83f8335193963faa3f30007b5 /drivers/target/target_core_spc.c
parent88455ec4be02c395820b1ff57656b0844ec03ac3 (diff)
target: add a parse_cdb method to the backend drivers
Instead of trying to handle all SCSI command sets in one function (transport_generic_cmd_sequencer) call out to the backend driver to perform this functionality. For pSCSI a copy of the existing code is used, but for all virtual backends we can use a new parse_sbc_cdb helper is used to provide a simple SBC emulation. For now this setups means a fair amount of duplication between pSCSI and the SBC library, but patches later in this series will sort out that problem. (nab: Fix up build failure in target_core_pscsi.c) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_spc.c')
-rw-r--r--drivers/target/target_core_spc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index ec2108667d65..156291fbf6d8 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -152,6 +152,7 @@ int spc_parse_cdb(struct se_cmd *cmd, unsigned int *size, bool passthrough)
cmd->sam_task_attr = MSG_HEAD_TAG;
break;
case TEST_UNIT_READY:
+ *size = 0;
if (!passthrough)
cmd->execute_cmd = target_emulate_noop;
break;