tty: Remove tty_wait_until_sent_from_close()
[firefly-linux-kernel-4.4.55.git] / drivers / target / target_core_transport.c
index ce8574b7220ced193e969e46141c411156e7e9a7..5bacc7b5ed6d85cf54d6d8fe445dcac08ee8081b 100644 (file)
@@ -39,6 +39,7 @@
 #include <net/sock.h>
 #include <net/tcp.h>
 #include <scsi/scsi_proto.h>
+#include <scsi/scsi_common.h>
 
 #include <target/target_core_base.h>
 #include <target/target_core_backend.h>
@@ -1074,6 +1075,55 @@ transport_set_vpd_ident(struct t10_vpd *vpd, unsigned char *page_83)
 }
 EXPORT_SYMBOL(transport_set_vpd_ident);
 
+static sense_reason_t
+target_check_max_data_sg_nents(struct se_cmd *cmd, struct se_device *dev,
+                              unsigned int size)
+{
+       u32 mtl;
+
+       if (!cmd->se_tfo->max_data_sg_nents)
+               return TCM_NO_SENSE;
+       /*
+        * Check if fabric enforced maximum SGL entries per I/O descriptor
+        * exceeds se_cmd->data_length.  If true, set SCF_UNDERFLOW_BIT +
+        * residual_count and reduce original cmd->data_length to maximum
+        * length based on single PAGE_SIZE entry scatter-lists.
+        */
+       mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE);
+       if (cmd->data_length > mtl) {
+               /*
+                * If an existing CDB overflow is present, calculate new residual
+                * based on CDB size minus fabric maximum transfer length.
+                *
+                * If an existing CDB underflow is present, calculate new residual
+                * based on original cmd->data_length minus fabric maximum transfer
+                * length.
+                *
+                * Otherwise, set the underflow residual based on cmd->data_length
+                * minus fabric maximum transfer length.
+                */
+               if (cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
+                       cmd->residual_count = (size - mtl);
+               } else if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) {
+                       u32 orig_dl = size + cmd->residual_count;
+                       cmd->residual_count = (orig_dl - mtl);
+               } else {
+                       cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
+                       cmd->residual_count = (cmd->data_length - mtl);
+               }
+               cmd->data_length = mtl;
+               /*
+                * Reset sbc_check_prot() calculated protection payload
+                * length based upon the new smaller MTL.
+                */
+               if (cmd->prot_length) {
+                       u32 sectors = (mtl / dev->dev_attrib.block_size);
+                       cmd->prot_length = dev->prot_length * sectors;
+               }
+       }
+       return TCM_NO_SENSE;
+}
+
 sense_reason_t
 target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
 {
@@ -1087,9 +1137,9 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
                        " 0x%02x\n", cmd->se_tfo->get_fabric_name(),
                                cmd->data_length, size, cmd->t_task_cdb[0]);
 
-               if (cmd->data_direction == DMA_TO_DEVICE) {
-                       pr_err("Rejecting underflow/overflow"
-                                       " WRITE data\n");
+               if (cmd->data_direction == DMA_TO_DEVICE &&
+                   cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
+                       pr_err("Rejecting underflow/overflow WRITE data\n");
                        return TCM_INVALID_CDB_FIELD;
                }
                /*
@@ -1119,7 +1169,7 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
                }
        }
 
-       return 0;
+       return target_check_max_data_sg_nents(cmd, dev, size);
 
 }
 
@@ -1177,14 +1227,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
                        " emulation is not supported\n");
                return TCM_INVALID_CDB_FIELD;
        }
-       /*
-        * Used to determine when ORDERED commands should go from
-        * Dormant to Active status.
-        */
-       cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id);
-       pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
-                       cmd->se_ordered_id, cmd->sam_task_attr,
-                       dev->transport->name);
+
        return 0;
 }
 
@@ -1246,6 +1289,11 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
        }
 
        ret = dev->transport->parse_cdb(cmd);
+       if (ret == TCM_UNSUPPORTED_SCSI_OPCODE)
+               pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n",
+                                   cmd->se_tfo->get_fabric_name(),
+                                   cmd->se_sess->se_node_acl->initiatorname,
+                                   cmd->t_task_cdb[0]);
        if (ret)
                return ret;
 
@@ -1693,8 +1741,7 @@ void transport_generic_request_failure(struct se_cmd *cmd,
 
 check_stop:
        transport_lun_remove_cmd(cmd);
-       if (!transport_cmd_check_stop_to_fabric(cmd))
-               ;
+       transport_cmd_check_stop_to_fabric(cmd);
        return;
 
 queue_full:
@@ -1767,16 +1814,14 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
         */
        switch (cmd->sam_task_attr) {
        case TCM_HEAD_TAG:
-               pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x, "
-                        "se_ordered_id: %u\n",
-                        cmd->t_task_cdb[0], cmd->se_ordered_id);
+               pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x\n",
+                        cmd->t_task_cdb[0]);
                return false;
        case TCM_ORDERED_TAG:
                atomic_inc_mb(&dev->dev_ordered_sync);
 
-               pr_debug("Added ORDERED for CDB: 0x%02x to ordered list, "
-                        " se_ordered_id: %u\n",
-                        cmd->t_task_cdb[0], cmd->se_ordered_id);
+               pr_debug("Added ORDERED for CDB: 0x%02x to ordered list\n",
+                        cmd->t_task_cdb[0]);
 
                /*
                 * Execute an ORDERED command if no other older commands
@@ -1800,10 +1845,8 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
        list_add_tail(&cmd->se_delayed_node, &dev->delayed_cmd_list);
        spin_unlock(&dev->delayed_cmd_lock);
 
-       pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to"
-               " delayed CMD list, se_ordered_id: %u\n",
-               cmd->t_task_cdb[0], cmd->sam_task_attr,
-               cmd->se_ordered_id);
+       pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to delayed CMD listn",
+               cmd->t_task_cdb[0], cmd->sam_task_attr);
        return true;
 }
 
@@ -1888,20 +1931,18 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
        if (cmd->sam_task_attr == TCM_SIMPLE_TAG) {
                atomic_dec_mb(&dev->simple_cmds);
                dev->dev_cur_ordered_id++;
-               pr_debug("Incremented dev->dev_cur_ordered_id: %u for"
-                       " SIMPLE: %u\n", dev->dev_cur_ordered_id,
-                       cmd->se_ordered_id);
+               pr_debug("Incremented dev->dev_cur_ordered_id: %u for SIMPLE\n",
+                        dev->dev_cur_ordered_id);
        } else if (cmd->sam_task_attr == TCM_HEAD_TAG) {
                dev->dev_cur_ordered_id++;
-               pr_debug("Incremented dev_cur_ordered_id: %u for"
-                       " HEAD_OF_QUEUE: %u\n", dev->dev_cur_ordered_id,
-                       cmd->se_ordered_id);
+               pr_debug("Incremented dev_cur_ordered_id: %u for HEAD_OF_QUEUE\n",
+                        dev->dev_cur_ordered_id);
        } else if (cmd->sam_task_attr == TCM_ORDERED_TAG) {
                atomic_dec_mb(&dev->dev_ordered_sync);
 
                dev->dev_cur_ordered_id++;
-               pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED:"
-                       " %u\n", dev->dev_cur_ordered_id, cmd->se_ordered_id);
+               pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n",
+                        dev->dev_cur_ordered_id);
        }
 
        target_restart_delayed_cmds(dev);
@@ -2615,37 +2656,159 @@ bool transport_wait_for_tasks(struct se_cmd *cmd)
 }
 EXPORT_SYMBOL(transport_wait_for_tasks);
 
-static int transport_get_sense_codes(
-       struct se_cmd *cmd,
-       u8 *asc,
-       u8 *ascq)
+struct sense_info {
+       u8 key;
+       u8 asc;
+       u8 ascq;
+       bool add_sector_info;
+};
+
+static const struct sense_info sense_info_table[] = {
+       [TCM_NO_SENSE] = {
+               .key = NOT_READY
+       },
+       [TCM_NON_EXISTENT_LUN] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x25 /* LOGICAL UNIT NOT SUPPORTED */
+       },
+       [TCM_UNSUPPORTED_SCSI_OPCODE] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x20, /* INVALID COMMAND OPERATION CODE */
+       },
+       [TCM_SECTOR_COUNT_TOO_MANY] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x20, /* INVALID COMMAND OPERATION CODE */
+       },
+       [TCM_UNKNOWN_MODE_PAGE] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x24, /* INVALID FIELD IN CDB */
+       },
+       [TCM_CHECK_CONDITION_ABORT_CMD] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x29, /* BUS DEVICE RESET FUNCTION OCCURRED */
+               .ascq = 0x03,
+       },
+       [TCM_INCORRECT_AMOUNT_OF_DATA] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x0c, /* WRITE ERROR */
+               .ascq = 0x0d, /* NOT ENOUGH UNSOLICITED DATA */
+       },
+       [TCM_INVALID_CDB_FIELD] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x24, /* INVALID FIELD IN CDB */
+       },
+       [TCM_INVALID_PARAMETER_LIST] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x26, /* INVALID FIELD IN PARAMETER LIST */
+       },
+       [TCM_PARAMETER_LIST_LENGTH_ERROR] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x1a, /* PARAMETER LIST LENGTH ERROR */
+       },
+       [TCM_UNEXPECTED_UNSOLICITED_DATA] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x0c, /* WRITE ERROR */
+               .ascq = 0x0c, /* UNEXPECTED_UNSOLICITED_DATA */
+       },
+       [TCM_SERVICE_CRC_ERROR] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x47, /* PROTOCOL SERVICE CRC ERROR */
+               .ascq = 0x05, /* N/A */
+       },
+       [TCM_SNACK_REJECTED] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x11, /* READ ERROR */
+               .ascq = 0x13, /* FAILED RETRANSMISSION REQUEST */
+       },
+       [TCM_WRITE_PROTECTED] = {
+               .key = DATA_PROTECT,
+               .asc = 0x27, /* WRITE PROTECTED */
+       },
+       [TCM_ADDRESS_OUT_OF_RANGE] = {
+               .key = ILLEGAL_REQUEST,
+               .asc = 0x21, /* LOGICAL BLOCK ADDRESS OUT OF RANGE */
+       },
+       [TCM_CHECK_CONDITION_UNIT_ATTENTION] = {
+               .key = UNIT_ATTENTION,
+       },
+       [TCM_CHECK_CONDITION_NOT_READY] = {
+               .key = NOT_READY,
+       },
+       [TCM_MISCOMPARE_VERIFY] = {
+               .key = MISCOMPARE,
+               .asc = 0x1d, /* MISCOMPARE DURING VERIFY OPERATION */
+               .ascq = 0x00,
+       },
+       [TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x10,
+               .ascq = 0x01, /* LOGICAL BLOCK GUARD CHECK FAILED */
+               .add_sector_info = true,
+       },
+       [TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x10,
+               .ascq = 0x02, /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */
+               .add_sector_info = true,
+       },
+       [TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED] = {
+               .key = ABORTED_COMMAND,
+               .asc = 0x10,
+               .ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */
+               .add_sector_info = true,
+       },
+       [TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = {
+               /*
+                * 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.
+                */
+               .key = NOT_READY,
+               .asc = 0x08, /* LOGICAL UNIT COMMUNICATION FAILURE */
+       },
+};
+
+static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason)
 {
-       *asc = cmd->scsi_asc;
-       *ascq = cmd->scsi_ascq;
+       const struct sense_info *si;
+       u8 *buffer = cmd->sense_buffer;
+       int r = (__force int)reason;
+       u8 asc, ascq;
+       bool desc_format = target_sense_desc_format(cmd->se_dev);
 
-       return 0;
-}
+       if (r < ARRAY_SIZE(sense_info_table) && sense_info_table[r].key)
+               si = &sense_info_table[r];
+       else
+               si = &sense_info_table[(__force int)
+                                      TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE];
 
-static
-void transport_err_sector_info(unsigned char *buffer, sector_t bad_sector)
-{
-       /* Place failed LBA in sense data information descriptor 0. */
-       buffer[SPC_ADD_SENSE_LEN_OFFSET] = 0xc;
-       buffer[SPC_DESC_TYPE_OFFSET] = 0; /* Information */
-       buffer[SPC_ADDITIONAL_DESC_LEN_OFFSET] = 0xa;
-       buffer[SPC_VALIDITY_OFFSET] = 0x80;
+       if (reason == TCM_CHECK_CONDITION_UNIT_ATTENTION) {
+               core_scsi3_ua_for_check_condition(cmd, &asc, &ascq);
+               WARN_ON_ONCE(asc == 0);
+       } else if (si->asc == 0) {
+               WARN_ON_ONCE(cmd->scsi_asc == 0);
+               asc = cmd->scsi_asc;
+               ascq = cmd->scsi_ascq;
+       } else {
+               asc = si->asc;
+               ascq = si->ascq;
+       }
+
+       scsi_build_sense_buffer(desc_format, buffer, si->key, asc, ascq);
+       if (si->add_sector_info)
+               return scsi_set_sense_information(buffer,
+                                                 cmd->scsi_sense_length,
+                                                 cmd->bad_sector);
 
-       /* Descriptor Information: failing sector */
-       put_unaligned_be64(bad_sector, &buffer[12]);
+       return 0;
 }
 
 int
 transport_send_check_condition_and_sense(struct se_cmd *cmd,
                sense_reason_t reason, int from_transport)
 {
-       unsigned char *buffer = cmd->sense_buffer;
        unsigned long flags;
-       u8 asc = 0, ascq = 0;
 
        spin_lock_irqsave(&cmd->t_state_lock, flags);
        if (cmd->se_cmd_flags & SCF_SENT_CHECK_CONDITION) {
@@ -2655,243 +2818,17 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
        cmd->se_cmd_flags |= SCF_SENT_CHECK_CONDITION;
        spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
-       if (!reason && from_transport)
-               goto after_reason;
+       if (!from_transport) {
+               int rc;
 
-       if (!from_transport)
                cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE;
-
-       /*
-        * Actual SENSE DATA, see SPC-3 7.23.2  SPC_SENSE_KEY_OFFSET uses
-        * SENSE KEY values from include/scsi/scsi.h
-        */
-       switch (reason) {
-       case TCM_NO_SENSE:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* Not Ready */
-               buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
-               /* NO ADDITIONAL SENSE INFORMATION */
-               buffer[SPC_ASC_KEY_OFFSET] = 0;
-               buffer[SPC_ASCQ_KEY_OFFSET] = 0;
-               break;
-       case TCM_NON_EXISTENT_LUN:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* LOGICAL UNIT NOT SUPPORTED */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x25;
-               break;
-       case TCM_UNSUPPORTED_SCSI_OPCODE:
-       case TCM_SECTOR_COUNT_TOO_MANY:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* INVALID COMMAND OPERATION CODE */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x20;
-               break;
-       case TCM_UNKNOWN_MODE_PAGE:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* INVALID FIELD IN CDB */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x24;
-               break;
-       case TCM_CHECK_CONDITION_ABORT_CMD:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ABORTED COMMAND */
-               buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
-               /* BUS DEVICE RESET FUNCTION OCCURRED */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x29;
-               buffer[SPC_ASCQ_KEY_OFFSET] = 0x03;
-               break;
-       case TCM_INCORRECT_AMOUNT_OF_DATA:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ABORTED COMMAND */
-               buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
-               /* WRITE ERROR */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x0c;
-               /* NOT ENOUGH UNSOLICITED DATA */
-               buffer[SPC_ASCQ_KEY_OFFSET] = 0x0d;
-               break;
-       case TCM_INVALID_CDB_FIELD:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* INVALID FIELD IN CDB */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x24;
-               break;
-       case TCM_INVALID_PARAMETER_LIST:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* INVALID FIELD IN PARAMETER LIST */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x26;
-               break;
-       case TCM_PARAMETER_LIST_LENGTH_ERROR:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* PARAMETER LIST LENGTH ERROR */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x1a;
-               break;
-       case TCM_UNEXPECTED_UNSOLICITED_DATA:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ABORTED COMMAND */
-               buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
-               /* WRITE ERROR */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x0c;
-               /* UNEXPECTED_UNSOLICITED_DATA */
-               buffer[SPC_ASCQ_KEY_OFFSET] = 0x0c;
-               break;
-       case TCM_SERVICE_CRC_ERROR:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ABORTED COMMAND */
-               buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
-               /* PROTOCOL SERVICE CRC ERROR */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x47;
-               /* N/A */
-               buffer[SPC_ASCQ_KEY_OFFSET] = 0x05;
-               break;
-       case TCM_SNACK_REJECTED:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ABORTED COMMAND */
-               buffer[SPC_SENSE_KEY_OFFSET] = ABORTED_COMMAND;
-               /* READ ERROR */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x11;
-               /* FAILED RETRANSMISSION REQUEST */
-               buffer[SPC_ASCQ_KEY_OFFSET] = 0x13;
-               break;
-       case TCM_WRITE_PROTECTED:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* DATA PROTECT */
-               buffer[SPC_SENSE_KEY_OFFSET] = DATA_PROTECT;
-               /* WRITE PROTECTED */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x27;
-               break;
-       case TCM_ADDRESS_OUT_OF_RANGE:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* ILLEGAL REQUEST */
-               buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
-               /* LOGICAL BLOCK ADDRESS OUT OF RANGE */
-               buffer[SPC_ASC_KEY_OFFSET] = 0x21;
-               break;
-       case TCM_CHECK_CONDITION_UNIT_ATTENTION:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* UNIT ATTENTION */
-               buffer[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
-               core_scsi3_ua_for_check_condition(cmd, &asc, &ascq);
-               buffer[SPC_ASC_KEY_OFFSET] = asc;
-               buffer[SPC_ASCQ_KEY_OFFSET] = ascq;
-               break;
-       case TCM_CHECK_CONDITION_NOT_READY:
-               /* CURRENT ERROR */
-               buffer[0] = 0x70;
-               buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
-               /* Not Ready */
-               buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY;
-               transport_get_sense_codes(cmd, &asc, &ascq);
-               buffer[SPC_ASC_KEY_OFFSET] = asc;
-               buffer[SPC_ASCQ_KEY_OFFSET] = 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;
+               cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
+               cmd->scsi_sense_length  = TRANSPORT_SENSE_BUFFER;
+               rc = translate_sense_reason(cmd, reason);
+               if (rc)
+                       return rc;
        }
-       /*
-        * This code uses linux/include/scsi/scsi.h SAM status codes!
-        */
-       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;
 
-after_reason:
        trace_target_cmd_complete(cmd);
        return cmd->se_tfo->queue_status(cmd);
 }