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target: Change TCM_NON_EXISTENT_LUN response to ASC=LOGICAL UNIT NOT SUPPORTED

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This patch changes transport_send_check_condition_and_sense() for
TCM_NON_EXISTENT_LUN emulation to use 0x25 (LOGICAL UNIT NOT SUPPORTED)
instead of the original 0x20 (INVALID COMMAND OPERATION CODE).  This is
helpful to distinguish between TCM_UNSUPPORTED_SCSI_OPCODE ASC=0x20
exceptions.

Signed-off-by: Nicholas A. Bellinger <nab@risingtidesystems.com>
This commit is contained in:
Nicholas Bellinger 2011-07-26 16:59:00 -07:00
parent 93ee7a9340
commit eb39d34004
1 changed files with 7 additions and 0 deletions
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7
drivers/target/target_core_transport.c
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@ -4726,6 +4726,13 @@ int transport_send_check_condition_and_sense(
*/
switch (reason) {
case TCM_NON_EXISTENT_LUN:
/* CURRENT ERROR */
buffer[offset] = 0x70;
/* ILLEGAL REQUEST */
buffer[offset+SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
/* LOGICAL UNIT NOT SUPPORTED */
buffer[offset+SPC_ASC_KEY_OFFSET] = 0x25;
break;
case TCM_UNSUPPORTED_SCSI_OPCODE:
case TCM_SECTOR_COUNT_TOO_MANY:
/* CURRENT ERROR */