target: Add generation of LOGICAL BLOCK ADDRESS OUT OF RANGE
Roland Dreier [Mon, 16 Jul 2012 22:34:21 +0000 (15:34 -0700)]
commit e2397c704429025bc6b331a970f699e52f34283e upstream.

Many SCSI commands are defined to return a CHECK CONDITION / ILLEGAL
REQUEST with ASC set to LOGICAL BLOCK ADDRESS OUT OF RANGE if the
initiator sends a command that accesses a too-big LBA.  Add an enum
value and case entries so that target code can return this status.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/target/target_core_transport.c
include/target/target_core_base.h

index 443704f..0686d61 100644 (file)
@@ -1976,6 +1976,7 @@ void transport_generic_request_failure(struct se_cmd *cmd)
        case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
        case TCM_UNKNOWN_MODE_PAGE:
        case TCM_WRITE_PROTECTED:
+       case TCM_ADDRESS_OUT_OF_RANGE:
        case TCM_CHECK_CONDITION_ABORT_CMD:
        case TCM_CHECK_CONDITION_UNIT_ATTENTION:
        case TCM_CHECK_CONDITION_NOT_READY:
@@ -4656,6 +4657,15 @@ int transport_send_check_condition_and_sense(
                /* WRITE PROTECTED */
                buffer[offset+SPC_ASC_KEY_OFFSET] = 0x27;
                break;
+       case TCM_ADDRESS_OUT_OF_RANGE:
+               /* CURRENT ERROR */
+               buffer[offset] = 0x70;
+               buffer[offset+SPC_ADD_SENSE_LEN_OFFSET] = 10;
+               /* ILLEGAL REQUEST */
+               buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
+               /* LOGICAL BLOCK ADDRESS OUT OF RANGE */
+               buffer[offset+SPC_ASC_KEY_OFFSET] = 0x21;
+               break;
        case TCM_CHECK_CONDITION_UNIT_ATTENTION:
                /* CURRENT ERROR */
                buffer[offset] = 0x70;
index aaccc5f..3ad5b33 100644 (file)
@@ -229,6 +229,7 @@ enum tcm_sense_reason_table {
        TCM_CHECK_CONDITION_UNIT_ATTENTION      = 0x0e,
        TCM_CHECK_CONDITION_NOT_READY           = 0x0f,
        TCM_RESERVATION_CONFLICT                = 0x10,
+       TCM_ADDRESS_OUT_OF_RANGE                = 0x11,
 };
 
 enum target_sc_flags_table {