2 files changed, 68 insertions, 2 deletions

diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 315f6a7523f0..334485bb2c12 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -170,6 +170,14 @@ struct forensic_data {
 #define SPCV_MSGU_CFG_TABLE_TRANSFER_DEBUG_INFO  0x80
 #define MAIN_MERRDCTO_MERRDCES		         0xA0/* DWORD 0x28) */
 
+/**
+ * enum fatal_error_reporter: Indicates the originator of the fatal error
+ */
+enum fatal_error_reporter {
+	REPORTER_DRIVER,
+	REPORTER_FIRMWARE,
+};
+
 struct pm8001_dispatch {
 	char *name;
 	int (*chip_init)(struct pm8001_hba_info *pm8001_ha);
@@ -715,6 +723,8 @@ ssize_t pm80xx_get_non_fatal_dump(struct device *cdev,
 		struct device_attribute *attr, char *buf);
 ssize_t pm8001_get_gsm_dump(struct device *cdev, u32, char *buf);
 int pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha);
+void pm80xx_fatal_error_uevent_emit(struct pm8001_hba_info *pm8001_ha,
+	enum fatal_error_reporter error_reporter);
 void pm8001_free_dev(struct pm8001_device *pm8001_dev);
 /* ctl shared API */
 extern const struct attribute_group *pm8001_host_groups[];
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 5b373c53c036..c1bae995a412 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -1552,6 +1552,52 @@ static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
 }
 
 /**
+ * pm80xx_fatal_error_uevent_emit - emits a single fatal error uevent
+ * @pm8001_ha: our hba card information
+ * @error_reporter: reporter of fatal error
+ */
+void pm80xx_fatal_error_uevent_emit(struct pm8001_hba_info *pm8001_ha,
+	enum fatal_error_reporter error_reporter)
+{
+	struct kobj_uevent_env *env;
+
+	pm8001_dbg(pm8001_ha, FAIL, "emitting fatal error uevent");
+
+	env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
+	if (!env)
+		return;
+
+	if (add_uevent_var(env, "DRIVER=%s", DRV_NAME))
+		goto exit;
+
+	if (add_uevent_var(env, "HBA_NUM=%u", pm8001_ha->id))
+		goto exit;
+
+	if (add_uevent_var(env, "EVENT_TYPE=FATAL_ERROR"))
+		goto exit;
+
+	switch (error_reporter) {
+	case REPORTER_DRIVER:
+		if (add_uevent_var(env, "REPORTED_BY=DRIVER"))
+			goto exit;
+		break;
+	case REPORTER_FIRMWARE:
+		if (add_uevent_var(env, "REPORTED_BY=FIRMWARE"))
+			goto exit;
+		break;
+	default:
+		if (add_uevent_var(env, "REPORTED_BY=OTHER"))
+			goto exit;
+		break;
+	}
+
+	kobject_uevent_env(&pm8001_ha->shost->shost_dev.kobj, KOBJ_CHANGE, env->envp);
+
+exit:
+	kfree(env);
+}
+
+/**
  * pm80xx_fatal_errors - returns non-zero *ONLY* when fatal errors
  * @pm8001_ha: our hba card information
  *
@@ -1580,6 +1626,7 @@ pm80xx_fatal_errors(struct pm8001_hba_info *pm8001_ha)
 			"Fatal error SCRATCHPAD1 = 0x%x SCRATCHPAD2 = 0x%x SCRATCHPAD3 = 0x%x SCRATCHPAD_RSVD0 = 0x%x SCRATCHPAD_RSVD1 = 0x%x\n",
 				scratch_pad1, scratch_pad2, scratch_pad3,
 				scratch_pad_rsvd0, scratch_pad_rsvd1);
+		pm80xx_fatal_error_uevent_emit(pm8001_ha, REPORTER_DRIVER);
 		ret = 1;
 	}
 
@@ -4039,6 +4086,7 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
 			pm8001_dbg(pm8001_ha, FAIL,
 				   "Firmware Fatal error! Regval:0x%x\n",
 				   regval);
+			pm80xx_fatal_error_uevent_emit(pm8001_ha, REPORTER_FIRMWARE);
 			pm8001_handle_event(pm8001_ha, NULL, IO_FATAL_ERROR);
 			print_scratchpad_registers(pm8001_ha);
 			return ret;
@@ -4677,8 +4725,12 @@ pm80xx_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
 		&pm8001_ha->phy[phy_id].dev_sas_addr, SAS_ADDR_SIZE);
 	payload.sas_identify.phy_id = phy_id;
 
-	return pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
+	ret = pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
 				    sizeof(payload), 0);
+	if (ret < 0)
+		pm8001_tag_free(pm8001_ha, tag);
+
+	return ret;
 }
 
 /**
@@ -4704,8 +4756,12 @@ static int pm80xx_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
 	payload.tag = cpu_to_le32(tag);
 	payload.phy_id = cpu_to_le32(phy_id);
 
-	return pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
+	ret = pm8001_mpi_build_cmd(pm8001_ha, 0, opcode, &payload,
 				    sizeof(payload), 0);
+	if (ret < 0)
+		pm8001_tag_free(pm8001_ha, tag);
+
+	return ret;
 }
 
 /*