2 files changed, 66 insertions, 11 deletions

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index cca4972735be..2f84f26624bf 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -814,7 +814,7 @@ static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
  **/
 static void ipr_init_res_entry(struct ipr_resource_entry *res)
 {
-        res->needs_sync_complete = 1;
+        res->needs_sync_complete = 0;
         res->in_erp = 0;
         res->add_to_ml = 0;
         res->del_from_ml = 0;
@@ -3251,7 +3251,8 @@ static int ipr_slave_alloc(struct scsi_device *sdev)
                         res->add_to_ml = 0;
                         res->in_erp = 0;
                         sdev->hostdata = res;
-                        res->needs_sync_complete = 1;
+                        if (!ipr_is_naca_model(res))
+                                res->needs_sync_complete = 1;
                         rc = 0;
                         break;
                 }
@@ -3515,7 +3516,8 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
         }
 
         list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-        res->needs_sync_complete = 1;
+        if (!ipr_is_naca_model(res))
+                res->needs_sync_complete = 1;
 
         LEAVE;
         return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
@@ -3819,7 +3821,8 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
         }
 
         if (res) {
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 res->in_erp = 0;
         }
         ipr_unmap_sglist(ioa_cfg, ipr_cmd);
@@ -4089,6 +4092,30 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
 }
 
 /**
+ * ipr_get_autosense - Copy autosense data to sense buffer
+ * @ipr_cmd:    ipr command struct
+ *
+ * This function copies the autosense buffer to the buffer
+ * in the scsi_cmd, if there is autosense available.
+ *
+ * Return value:
+ *      1 if autosense was available / 0 if not
+ **/
+static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
+{
+        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+
+        if ((be32_to_cpu(ioasa->ioasc_specific) &
+             (IPR_ADDITIONAL_STATUS_FMT | IPR_AUTOSENSE_VALID)) == 0)
+                return 0;
+
+        memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
+               min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
+                   SCSI_SENSE_BUFFERSIZE));
+        return 1;
+}
+
+/**
  * ipr_erp_start - Process an error response for a SCSI op
  * @ioa_cfg:    ioa config struct
  * @ipr_cmd:    ipr command struct
@@ -4118,7 +4145,10 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
 
         switch (ioasc & IPR_IOASC_IOASC_MASK) {
         case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
-                scsi_cmd->result |= (DID_IMM_RETRY << 16);
+                if (ipr_is_naca_model(res))
+                        scsi_cmd->result |= (DID_ABORT << 16);
+                else
+                        scsi_cmd->result |= (DID_IMM_RETRY << 16);
                 break;
         case IPR_IOASC_IR_RESOURCE_HANDLE:
         case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
@@ -4126,7 +4156,8 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                 break;
         case IPR_IOASC_HW_SEL_TIMEOUT:
                 scsi_cmd->result |= (DID_NO_CONNECT << 16);
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 break;
         case IPR_IOASC_SYNC_REQUIRED:
                 if (!res->in_erp)
@@ -4146,21 +4177,27 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                 if (!res->resetting_device)
                         scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
                 scsi_cmd->result |= (DID_ERROR << 16);
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 break;
         case IPR_IOASC_HW_DEV_BUS_STATUS:
                 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
                 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
-                        ipr_erp_cancel_all(ipr_cmd);
-                        return;
+                        if (!ipr_get_autosense(ipr_cmd)) {
+                                if (!ipr_is_naca_model(res)) {
+                                        ipr_erp_cancel_all(ipr_cmd);
+                                        return;
+                                }
+                        }
                 }
-                res->needs_sync_complete = 1;
+                if (!ipr_is_naca_model(res))
+                        res->needs_sync_complete = 1;
                 break;
         case IPR_IOASC_NR_INIT_CMD_REQUIRED:
                 break;
         default:
                 scsi_cmd->result |= (DID_ERROR << 16);
-                if (!ipr_is_vset_device(res))
+                if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
                         res->needs_sync_complete = 1;
                 break;
         }
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index f7fa8cd2ecad..c9cc40e5db24 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -302,6 +302,10 @@ struct ipr_config_table_entry {
 #define IPR_SUBTYPE_GENERIC_SCSI        1
 #define IPR_SUBTYPE_VOLUME_SET          2
 
+#define IPR_QUEUEING_MODEL(res) ((((res)->cfgte.flags) & 0x70) >> 4)
+#define IPR_QUEUE_FROZEN_MODEL  0
+#define IPR_QUEUE_NACA_MODEL            1
+
         struct ipr_res_addr res_addr;
         __be32 res_handle;
         __be32 reserved4[2];
@@ -1294,6 +1298,20 @@ static inline int ipr_is_gscsi(struct ipr_resource_entry *res)
 }
 
 /**
+ * ipr_is_naca_model - Determine if a resource is using NACA queueing model
+ * @res:        resource entry struct
+ *
+ * Return value:
+ *      1 if NACA queueing model / 0 if not NACA queueing model
+ **/
+static inline int ipr_is_naca_model(struct ipr_resource_entry *res)
+{
+        if (ipr_is_gscsi(res) && IPR_QUEUEING_MODEL(res) == IPR_QUEUE_NACA_MODEL)
+                return 1;
+        return 0;
+}
+
+/**
  * ipr_is_device - Determine if resource address is that of a device
  * @res_addr:   resource address struct
  *