megaraid_sas: MFI IO timeout handling

[mirror_ubuntu-artful-kernel.git] / drivers / scsi / megaraid / megaraid_sas.h

diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index ef4ff03242ea13d825a3ba1993eb9489911d8af4..dcc6ff8a9d5c239ffe902007260d282ad8910b80 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -170,6 +170,7 @@
 
 /* Driver internal */
 #define DRV_DCMD_POLLED_MODE           0x1
+#define DRV_DCMD_SKIP_REFIRE           0x2
 
 /*
  * Definition for cmd_status
@@ -1093,6 +1094,11 @@ enum MR_SCSI_CMD_TYPE {
        NON_READ_WRITE_SYSPDIO = 3,
 };
 
+enum DCMD_TIMEOUT_ACTION {
+       INITIATE_OCR = 0,
+       KILL_ADAPTER = 1,
+       IGNORE_TIMEOUT = 2,
+};
 /* Frame Type */
 #define IO_FRAME                               0
 #define PTHRU_FRAME                            1
@@ -1139,6 +1145,7 @@ enum MR_SCSI_CMD_TYPE {
 
 #define MFI_OB_INTR_STATUS_MASK                        0x00000002
 #define MFI_POLL_TIMEOUT_SECS                  60
+#define MFI_IO_TIMEOUT_SECS                    180
 #define MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF    (5 * HZ)
 #define MEGASAS_OCR_SETTLE_TIME_VF             (1000 * 30)
 #define MEGASAS_ROUTINE_WAIT_TIME_VF           300
@@ -1918,7 +1925,7 @@ struct megasas_instance_template {
        u32 (*init_adapter)(struct megasas_instance *);
        u32 (*build_and_issue_cmd) (struct megasas_instance *,
                                    struct scsi_cmnd *);
-       void (*issue_dcmd) (struct megasas_instance *instance,
+       int (*issue_dcmd)(struct megasas_instance *instance,
                            struct megasas_cmd *cmd);
 };
 
@@ -2016,6 +2023,19 @@ struct megasas_mgmt_info {
        int max_index;
 };
 
+enum MEGASAS_OCR_CAUSE {
+       FW_FAULT_OCR                    = 0,
+       SCSIIO_TIMEOUT_OCR              = 1,
+       MFI_IO_TIMEOUT_OCR              = 2,
+};
+
+enum DCMD_RETURN_STATUS {
+       DCMD_SUCCESS            = 0,
+       DCMD_TIMEOUT            = 1,
+       DCMD_FAILED             = 2,
+       DCMD_NOT_FIRED          = 3,
+};
+
 u8
 MR_BuildRaidContext(struct megasas_instance *instance,
                    struct IO_REQUEST_INFO *io_info,