target: Split transport_send_check_condition_and_sense()
Move the code for translating a sense_reason_t code into a SCSI status ASC and ASCQ codes from transport_send_check_condition_and_sense() into the new function translate_sense_reason(). Convert the switch statement that performs the translation into table-driven code. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Bart Van Assche
Nicholas Bellinger
parent
46d5bd62ef
commit
ab78fef4d5
1 changed files with 148 additions and 235 deletions
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@ -2628,13 +2628,155 @@ void transport_err_sector_info(unsigned char *buffer, sector_t bad_sector)
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put_unaligned_be64(bad_sector, &buffer[12]);
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put_unaligned_be64(bad_sector, &buffer[12]);
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}
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}
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struct sense_info {
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u8 key;
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u8 asc;
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u8 ascq;
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bool add_sector_info;
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};
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static const struct sense_info sense_info_table[] = {
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[TCM_NO_SENSE] = {
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.key = NOT_READY
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},
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[TCM_NON_EXISTENT_LUN] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x25 /* LOGICAL UNIT NOT SUPPORTED */
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},
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[TCM_UNSUPPORTED_SCSI_OPCODE] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x20, /* INVALID COMMAND OPERATION CODE */
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},
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[TCM_SECTOR_COUNT_TOO_MANY] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x20, /* INVALID COMMAND OPERATION CODE */
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},
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[TCM_UNKNOWN_MODE_PAGE] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x24, /* INVALID FIELD IN CDB */
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},
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[TCM_CHECK_CONDITION_ABORT_CMD] = {
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.key = ABORTED_COMMAND,
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.asc = 0x29, /* BUS DEVICE RESET FUNCTION OCCURRED */
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.ascq = 0x03,
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},
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[TCM_INCORRECT_AMOUNT_OF_DATA] = {
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.key = ABORTED_COMMAND,
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.asc = 0x0c, /* WRITE ERROR */
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.ascq = 0x0d, /* NOT ENOUGH UNSOLICITED DATA */
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},
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[TCM_INVALID_CDB_FIELD] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x24, /* INVALID FIELD IN CDB */
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},
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[TCM_INVALID_PARAMETER_LIST] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x26, /* INVALID FIELD IN PARAMETER LIST */
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},
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[TCM_PARAMETER_LIST_LENGTH_ERROR] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x1a, /* PARAMETER LIST LENGTH ERROR */
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},
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[TCM_UNEXPECTED_UNSOLICITED_DATA] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x0c, /* WRITE ERROR */
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.ascq = 0x0c, /* UNEXPECTED_UNSOLICITED_DATA */
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},
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[TCM_SERVICE_CRC_ERROR] = {
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.key = ABORTED_COMMAND,
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.asc = 0x47, /* PROTOCOL SERVICE CRC ERROR */
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.ascq = 0x05, /* N/A */
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},
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[TCM_SNACK_REJECTED] = {
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.key = ABORTED_COMMAND,
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.asc = 0x11, /* READ ERROR */
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.ascq = 0x13, /* FAILED RETRANSMISSION REQUEST */
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},
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[TCM_WRITE_PROTECTED] = {
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.key = DATA_PROTECT,
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.asc = 0x27, /* WRITE PROTECTED */
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},
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[TCM_ADDRESS_OUT_OF_RANGE] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x21, /* LOGICAL BLOCK ADDRESS OUT OF RANGE */
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},
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[TCM_CHECK_CONDITION_UNIT_ATTENTION] = {
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.key = UNIT_ATTENTION,
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},
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[TCM_CHECK_CONDITION_NOT_READY] = {
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.key = NOT_READY,
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},
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[TCM_MISCOMPARE_VERIFY] = {
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.key = MISCOMPARE,
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.asc = 0x1d, /* MISCOMPARE DURING VERIFY OPERATION */
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.ascq = 0x00,
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},
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[TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x10,
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.ascq = 0x01, /* LOGICAL BLOCK GUARD CHECK FAILED */
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.add_sector_info = true,
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},
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[TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x10,
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.ascq = 0x02, /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */
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.add_sector_info = true,
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},
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[TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED] = {
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.key = ILLEGAL_REQUEST,
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.asc = 0x10,
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.ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */
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.add_sector_info = true,
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},
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[TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = {
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/*
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* Returning ILLEGAL REQUEST would cause immediate IO errors on
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* Solaris initiators. Returning NOT READY instead means the
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* operations will be retried a finite number of times and we
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* can survive intermittent errors.
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*/
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.key = NOT_READY,
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.asc = 0x08, /* LOGICAL UNIT COMMUNICATION FAILURE */
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},
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};
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static void translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason)
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{
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const struct sense_info *si;
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u8 *buffer = cmd->sense_buffer;
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int r = (__force int)reason;
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u8 asc, ascq;
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if (r < ARRAY_SIZE(sense_info_table) && sense_info_table[r].key)
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si = &sense_info_table[r];
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else
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si = &sense_info_table[(__force int)
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TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE];
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buffer[SPC_SENSE_KEY_OFFSET] = si->key;
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if (reason == TCM_CHECK_CONDITION_UNIT_ATTENTION) {
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core_scsi3_ua_for_check_condition(cmd, &asc, &ascq);
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WARN_ON_ONCE(asc == 0);
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} else if (si->asc == 0) {
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WARN_ON_ONCE(cmd->scsi_asc == 0);
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asc = cmd->scsi_asc;
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ascq = cmd->scsi_ascq;
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} else {
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asc = si->asc;
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ascq = si->ascq;
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}
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buffer[SPC_ASC_KEY_OFFSET] = asc;
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buffer[SPC_ASCQ_KEY_OFFSET] = ascq;
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if (si->add_sector_info)
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transport_err_sector_info(cmd->sense_buffer, cmd->bad_sector);
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}
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int
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int
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transport_send_check_condition_and_sense(struct se_cmd *cmd,
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transport_send_check_condition_and_sense(struct se_cmd *cmd,
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sense_reason_t reason, int from_transport)
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sense_reason_t reason, int from_transport)
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{
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{
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unsigned char *buffer = cmd->sense_buffer;
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unsigned long flags;
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unsigned long flags;
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u8 asc = 0, ascq = 0;
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spin_lock_irqsave(&cmd->t_state_lock, flags);
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spin_lock_irqsave(&cmd->t_state_lock, flags);
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if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
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if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
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@ -2644,242 +2786,13 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
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cmd->se_cmd_flags |= SCF_SENT_CHECK_CONDITION;
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cmd->se_cmd_flags |= SCF_SENT_CHECK_CONDITION;
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spin_unlock_irqrestore(&cmd->t_state_lock, flags);
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spin_unlock_irqrestore(&cmd->t_state_lock, flags);
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if (!reason && from_transport)
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if (!from_transport) {
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goto after_reason;
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if (!from_transport)
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cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE;
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cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE;
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translate_sense_reason(cmd, reason);
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/*
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* Actual SENSE DATA, see SPC-3 7.23.2 SPC_SENSE_KEY_OFFSET uses
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* SENSE KEY values from include/scsi/scsi.h
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*/
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switch (reason) {
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case TCM_NO_SENSE:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* Not Ready */
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buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
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/* NO ADDITIONAL SENSE INFORMATION */
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buffer[SPC_ASC_KEY_OFFSET] = 0;
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buffer[SPC_ASCQ_KEY_OFFSET] = 0;
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break;
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case TCM_NON_EXISTENT_LUN:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* LOGICAL UNIT NOT SUPPORTED */
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buffer[SPC_ASC_KEY_OFFSET] = 0x25;
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break;
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case TCM_UNSUPPORTED_SCSI_OPCODE:
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case TCM_SECTOR_COUNT_TOO_MANY:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* INVALID COMMAND OPERATION CODE */
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buffer[SPC_ASC_KEY_OFFSET] = 0x20;
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break;
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case TCM_UNKNOWN_MODE_PAGE:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* INVALID FIELD IN CDB */
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buffer[SPC_ASC_KEY_OFFSET] = 0x24;
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break;
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case TCM_CHECK_CONDITION_ABORT_CMD:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ABORTED COMMAND */
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buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
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/* BUS DEVICE RESET FUNCTION OCCURRED */
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buffer[SPC_ASC_KEY_OFFSET] = 0x29;
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buffer[SPC_ASCQ_KEY_OFFSET] = 0x03;
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break;
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case TCM_INCORRECT_AMOUNT_OF_DATA:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ABORTED COMMAND */
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buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
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/* WRITE ERROR */
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buffer[SPC_ASC_KEY_OFFSET] = 0x0c;
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/* NOT ENOUGH UNSOLICITED DATA */
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buffer[SPC_ASCQ_KEY_OFFSET] = 0x0d;
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break;
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case TCM_INVALID_CDB_FIELD:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* INVALID FIELD IN CDB */
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buffer[SPC_ASC_KEY_OFFSET] = 0x24;
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break;
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case TCM_INVALID_PARAMETER_LIST:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* INVALID FIELD IN PARAMETER LIST */
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buffer[SPC_ASC_KEY_OFFSET] = 0x26;
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break;
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case TCM_PARAMETER_LIST_LENGTH_ERROR:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* PARAMETER LIST LENGTH ERROR */
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buffer[SPC_ASC_KEY_OFFSET] = 0x1a;
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break;
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case TCM_UNEXPECTED_UNSOLICITED_DATA:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ABORTED COMMAND */
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buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
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/* WRITE ERROR */
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buffer[SPC_ASC_KEY_OFFSET] = 0x0c;
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/* UNEXPECTED_UNSOLICITED_DATA */
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buffer[SPC_ASCQ_KEY_OFFSET] = 0x0c;
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break;
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case TCM_SERVICE_CRC_ERROR:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ABORTED COMMAND */
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buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
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/* PROTOCOL SERVICE CRC ERROR */
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buffer[SPC_ASC_KEY_OFFSET] = 0x47;
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/* N/A */
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buffer[SPC_ASCQ_KEY_OFFSET] = 0x05;
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break;
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case TCM_SNACK_REJECTED:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ABORTED COMMAND */
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buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
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/* READ ERROR */
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buffer[SPC_ASC_KEY_OFFSET] = 0x11;
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/* FAILED RETRANSMISSION REQUEST */
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buffer[SPC_ASCQ_KEY_OFFSET] = 0x13;
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break;
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case TCM_WRITE_PROTECTED:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* DATA PROTECT */
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buffer[SPC_SENSE_KEY_OFFSET] = DATA_PROTECT;
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/* WRITE PROTECTED */
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buffer[SPC_ASC_KEY_OFFSET] = 0x27;
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break;
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case TCM_ADDRESS_OUT_OF_RANGE:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* ILLEGAL REQUEST */
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buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
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/* LOGICAL BLOCK ADDRESS OUT OF RANGE */
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buffer[SPC_ASC_KEY_OFFSET] = 0x21;
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break;
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case TCM_CHECK_CONDITION_UNIT_ATTENTION:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* UNIT ATTENTION */
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buffer[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
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core_scsi3_ua_for_check_condition(cmd, &asc, &ascq);
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buffer[SPC_ASC_KEY_OFFSET] = asc;
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buffer[SPC_ASCQ_KEY_OFFSET] = ascq;
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break;
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case TCM_CHECK_CONDITION_NOT_READY:
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/* CURRENT ERROR */
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buffer[0] = 0x70;
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buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
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/* Not Ready */
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buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
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buffer[SPC_ASC_KEY_OFFSET] = cmd->scsi_asc;
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buffer[SPC_ASCQ_KEY_OFFSET] = cmd->scsi_ascq;
|
|
||||||
break;
|
|
||||||
case TCM_MISCOMPARE_VERIFY:
|
|
||||||
/* CURRENT ERROR */
|
|
||||||
buffer[0] = 0x70;
|
|
||||||
buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
|
|
||||||
buffer[SPC_SENSE_KEY_OFFSET] = MISCOMPARE;
|
|
||||||
/* MISCOMPARE DURING VERIFY OPERATION */
|
|
||||||
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;
|
|
||||||
transport_err_sector_info(buffer, cmd->bad_sector);
|
|
||||||
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;
|
|
||||||
transport_err_sector_info(buffer, cmd->bad_sector);
|
|
||||||
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;
|
|
||||||
transport_err_sector_info(buffer, cmd->bad_sector);
|
|
||||||
break;
|
|
||||||
case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
|
|
||||||
default:
|
|
||||||
/* CURRENT ERROR */
|
|
||||||
buffer[0] = 0x70;
|
|
||||||
buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
|
|
||||||
/*
|
|
||||||
* Returning ILLEGAL REQUEST would cause immediate IO errors on
|
|
||||||
* Solaris initiators. Returning NOT READY instead means the
|
|
||||||
* operations will be retried a finite number of times and we
|
|
||||||
* can survive intermittent errors.
|
|
||||||
*/
|
|
||||||
buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
|
|
||||||
/* LOGICAL UNIT COMMUNICATION FAILURE */
|
|
||||||
buffer[SPC_ASC_KEY_OFFSET] = 0x08;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
/*
|
|
||||||
* This code uses linux/include/scsi/scsi.h SAM status codes!
|
|
||||||
*/
|
|
||||||
cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
|
cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
|
||||||
/*
|
|
||||||
* Automatically padded, this value is encoded in the fabric's
|
|
||||||
* data_length response PDU containing the SCSI defined sense data.
|
|
||||||
*/
|
|
||||||
cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
|
cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
|
||||||
|
}
|
||||||
|
|
||||||
after_reason:
|
|
||||||
trace_target_cmd_complete(cmd);
|
trace_target_cmd_complete(cmd);
|
||||||
return cmd->se_tfo->queue_status(cmd);
|
return cmd->se_tfo->queue_status(cmd);
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Add table
Reference in a new issue