target: add XCOPY target/segment desc sense codes

As defined in http://www.t10.org/lists/asc-num.htm. To be used during
validation of XCOPY target and segment descriptor lists.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 7dfefd6..1cadc9e 100644 (file)
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1693,6 +1693,10 @@ void transport_generic_request_failure(struct se_cmd *cmd,
        case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED:
        case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED:
        case TCM_COPY_TARGET_DEVICE_NOT_REACHABLE:
+       case TCM_TOO_MANY_TARGET_DESCS:
+       case TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE:
+       case TCM_TOO_MANY_SEGMENT_DESCS:
+       case TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE:
                break;
        case TCM_OUT_OF_RESOURCES:
                sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
@@ -2808,6 +2812,26 @@ static const struct sense_info sense_info_table[] = {
                .key = ILLEGAL_REQUEST,
                .asc = 0x26, /* INVALID FIELD IN PARAMETER LIST */
        },
+       [TCM_TOO_MANY_TARGET_DESCS] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x26,
+               .ascq = 0x06, /* TOO MANY TARGET DESCRIPTORS */
+       },
+       [TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x26,
+               .ascq = 0x07, /* UNSUPPORTED TARGET DESCRIPTOR TYPE CODE */
+       },
+       [TCM_TOO_MANY_SEGMENT_DESCS] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x26,
+               .ascq = 0x08, /* TOO MANY SEGMENT DESCRIPTORS */
+       },
+       [TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x26,
+               .ascq = 0x09, /* UNSUPPORTED SEGMENT DESCRIPTOR TYPE CODE */
+       },
        [TCM_PARAMETER_LIST_LENGTH_ERROR] = {
                .key = ILLEGAL_REQUEST,
                .asc = 0x1a, /* PARAMETER LIST LENGTH ERROR */

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 29e6858..43edf82 100644 (file)
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -174,6 +174,10 @@ enum tcm_sense_reason_table {
        TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED  = R(0x16),
        TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED  = R(0x17),
        TCM_COPY_TARGET_DEVICE_NOT_REACHABLE    = R(0x18),
+       TCM_TOO_MANY_TARGET_DESCS               = R(0x19),
+       TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE   = R(0x1a),
+       TCM_TOO_MANY_SEGMENT_DESCS              = R(0x1b),
+       TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE  = R(0x1c),
 #undef R
 };