target: Add DIF CHECK_CONDITION ASC/ASCQ exception cases

This patch adds support for DIF related CHECK_CONDITION ASC/ASCQ
exception cases into transport_send_check_condition_and_sense().

This includes:

  LOGICAL BLOCK GUARD CHECK FAILED
  LOGICAL BLOCK APPLICATION TAG CHECK FAILED
  LOGICAL BLOCK REFERENCE TAG CHECK FAILED

that used by DIF TYPE1 and TYPE3 failure cases.

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>

2 files changed, 33 insertions, 0 deletions

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 18c828dc3b9e..fa4fc0429452 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2674,6 +2674,36 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
                 buffer[SPC_ASC_KEY_OFFSET] = 0x1d;
                 buffer[SPC_ASCQ_KEY_OFFSET] = 0x00;
                 break;
+        case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED:
+                /* CURRENT ERROR */
+                buffer[0] = 0x70;
+                buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
+                /* ILLEGAL REQUEST */
+                buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+                /* LOGICAL BLOCK GUARD CHECK FAILED */
+                buffer[SPC_ASC_KEY_OFFSET] = 0x10;
+                buffer[SPC_ASCQ_KEY_OFFSET] = 0x01;
+                break;
+        case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED:
+                /* CURRENT ERROR */
+                buffer[0] = 0x70;
+                buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
+                /* ILLEGAL REQUEST */
+                buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+                /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */
+                buffer[SPC_ASC_KEY_OFFSET] = 0x10;
+                buffer[SPC_ASCQ_KEY_OFFSET] = 0x02;
+                break;
+        case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED:
+                /* CURRENT ERROR */
+                buffer[0] = 0x70;
+                buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
+                /* ILLEGAL REQUEST */
+                buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+                /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */
+                buffer[SPC_ASC_KEY_OFFSET] = 0x10;
+                buffer[SPC_ASCQ_KEY_OFFSET] = 0x03;
+                break;
         case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
         default:
                 /* CURRENT ERROR */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index d98048b97fe3..0336d70d0d9f 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -205,6 +205,9 @@ enum tcm_sense_reason_table {
         TCM_OUT_OF_RESOURCES                    = R(0x12),
         TCM_PARAMETER_LIST_LENGTH_ERROR         = R(0x13),
         TCM_MISCOMPARE_VERIFY                   = R(0x14),
+        TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED    = R(0x15),
+        TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED  = R(0x16),
+        TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED  = R(0x17),
 #undef R
 };