Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[deliverable/linux.git] / drivers / target / target_core_transport.c

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 357bb24afba2105575ff46d3fc44e632cc3ce2b5..0eaae23d12b576547fa51f25ed8f05579f6ec646 100644 (file)
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1098,7 +1098,7 @@ struct se_device *transport_add_device_to_core_hba(
         * Setup the Asymmetric Logical Unit Assignment for struct se_device
         */
        if (core_setup_alua(dev, force_pt) < 0)
-               goto out;
+               goto err_dev_list;
 
        /*
         * Startup the struct se_device processing thread
@@ -1108,7 +1108,7 @@ struct se_device *transport_add_device_to_core_hba(
        if (!dev->tmr_wq) {
                pr_err("Unable to create tmr workqueue for %s\n",
                        dev->transport->name);
-               goto out;
+               goto err_dev_list;
        }
        /*
         * Setup work_queue for QUEUE_FULL
@@ -1126,7 +1126,7 @@ struct se_device *transport_add_device_to_core_hba(
                if (!inquiry_prod || !inquiry_rev) {
                        pr_err("All non TCM/pSCSI plugins require"
                                " INQUIRY consts\n");
-                       goto out;
+                       goto err_wq;
                }
 
                strncpy(&dev->se_sub_dev->t10_wwn.vendor[0], "LIO-ORG", 8);
@@ -1136,9 +1136,10 @@ struct se_device *transport_add_device_to_core_hba(
        scsi_dump_inquiry(dev);
 
        return dev;
-out:
-       destroy_workqueue(dev->tmr_wq);
 
+err_wq:
+       destroy_workqueue(dev->tmr_wq);
+err_dev_list:
        spin_lock(&hba->device_lock);
        list_del(&dev->dev_list);
        hba->dev_count--;
@@ -1447,10 +1448,14 @@ EXPORT_SYMBOL(transport_handle_cdb_direct);
  * @data_dir: DMA data direction
  * @flags: flags for command submission from target_sc_flags_tables
  *
+ * Returns non zero to signal active I/O shutdown failure.  All other
+ * setup exceptions will be returned as a SCSI CHECK_CONDITION response,
+ * but still return zero here.
+ *
  * This may only be called from process context, and also currently
  * assumes internal allocation of fabric payload buffer by target-core.
  **/
-void target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
+int target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
                unsigned char *cdb, unsigned char *sense, u32 unpacked_lun,
                u32 data_length, int task_attr, int data_dir, int flags)
 {
@@ -1478,7 +1483,7 @@ void target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
         */
        rc = target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF));
        if (rc)
-               return;
+               return rc;
        /*
         * Signal bidirectional data payloads to target-core
         */
@@ -1491,13 +1496,13 @@ void target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
                transport_send_check_condition_and_sense(se_cmd,
                                se_cmd->scsi_sense_reason, 0);
                target_put_sess_cmd(se_sess, se_cmd);
-               return;
+               return 0;
        }
 
        rc = target_setup_cmd_from_cdb(se_cmd, cdb);
        if (rc != 0) {
                transport_generic_request_failure(se_cmd);
-               return;
+               return 0;
        }
 
        /*
@@ -1507,7 +1512,7 @@ void target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess,
        core_alua_check_nonop_delay(se_cmd);
 
        transport_handle_cdb_direct(se_cmd);
-       return;
+       return 0;
 }
 EXPORT_SYMBOL(target_submit_cmd);
 
@@ -1640,6 +1645,7 @@ 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:
@@ -2967,6 +2973,15 @@ 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;