scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot

In future scenarios we will want to use the TMF struct for more task types
than SSP.

As such, we can add struct hisi_sas_tmf_task directly into struct
hisi_sas_slot, and this will mean we can remove the TMF parameters from the
task prep functions.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hisi_sas/hisi_sas.h

@@ -179,6 +179,11 @@ struct hisi_sas_device {
 	u8 dev_status;
 };
 
+struct hisi_sas_tmf_task {
+	u8 tmf;
+	u16 tag_of_task_to_be_managed;
+};
+
 struct hisi_sas_slot {
 	struct list_head entry;
 	struct list_head delivery;
@@ -199,11 +204,7 @@ struct hisi_sas_slot {
 	struct work_struct abort_slot;
 	struct timer_list internal_abort_timer;
 	bool is_internal;
-};
-
-struct hisi_sas_tmf_task {
-	u8 tmf;
-	u16 tag_of_task_to_be_managed;
+	struct hisi_sas_tmf_task *tmf;
 };
 
 struct hisi_sas_hw {
@@ -217,8 +218,7 @@ struct hisi_sas_hw {
 	int (*get_free_slot)(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq);
 	void (*start_delivery)(struct hisi_sas_dq *dq);
 	void (*prep_ssp)(struct hisi_hba *hisi_hba,
-			struct hisi_sas_slot *slot, int is_tmf,
-			struct hisi_sas_tmf_task *tmf);
+			struct hisi_sas_slot *slot);
 	void (*prep_smp)(struct hisi_hba *hisi_hba,
 			struct hisi_sas_slot *slot);
 	void (*prep_stp)(struct hisi_hba *hisi_hba,

drivers/scsi/hisi_sas/hisi_sas_main.c

@@ -266,10 +266,9 @@ static void hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba,
 }
 
 static void hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba,
-				  struct hisi_sas_slot *slot, int is_tmf,
-				  struct hisi_sas_tmf_task *tmf)
+				  struct hisi_sas_slot *slot)
 {
-	hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf);
+	hisi_hba->hw->prep_ssp(hisi_hba, slot);
 }
 
 static void hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba,
@@ -322,7 +321,7 @@ static void hisi_sas_slot_abort(struct work_struct *work)
 
 static int hisi_sas_task_prep(struct sas_task *task,
 			      struct hisi_sas_dq **dq_pointer,
-			      int is_tmf, struct hisi_sas_tmf_task *tmf,
+			      bool is_tmf, struct hisi_sas_tmf_task *tmf,
 			      int *pass)
 {
 	struct domain_device *device = task->dev;
@@ -461,8 +460,8 @@ static int hisi_sas_task_prep(struct sas_task *task,
 	slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot];
 	slot->task = task;
 	slot->port = port;
-	if (is_tmf)
-		slot->is_internal = true;
+	slot->tmf = tmf;
+	slot->is_internal = is_tmf;
 	task->lldd_task = slot;
 	INIT_WORK(&slot->abort_slot, hisi_sas_slot_abort);
 
@@ -475,7 +474,7 @@ static int hisi_sas_task_prep(struct sas_task *task,
 		hisi_sas_task_prep_smp(hisi_hba, slot);
 		break;
 	case SAS_PROTOCOL_SSP:
-		hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf);
+		hisi_sas_task_prep_ssp(hisi_hba, slot);
 		break;
 	case SAS_PROTOCOL_SATA:
 	case SAS_PROTOCOL_STP:
@@ -527,7 +526,7 @@ static int hisi_sas_task_prep(struct sas_task *task,
 }
 
 static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
-			      int is_tmf, struct hisi_sas_tmf_task *tmf)
+			      bool is_tmf, struct hisi_sas_tmf_task *tmf)
 {
 	u32 rc;
 	u32 pass = 0;

drivers/scsi/hisi_sas/hisi_sas_v1_hw.c

@@ -986,8 +986,7 @@ static void prep_smp_v1_hw(struct hisi_hba *hisi_hba,
 }
 
 static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
-			  struct hisi_sas_slot *slot, int is_tmf,
-			  struct hisi_sas_tmf_task *tmf)
+			  struct hisi_sas_slot *slot)
 {
 	struct sas_task *task = slot->task;
 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
@@ -996,7 +995,8 @@ static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
 	struct hisi_sas_port *port = slot->port;
 	struct sas_ssp_task *ssp_task = &task->ssp_task;
 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
-	int has_data = 0, priority = is_tmf;
+	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	int has_data = 0, priority = !!tmf;
 	u8 *buf_cmd, fburst = 0;
 	u32 dw1, dw2;
 
@@ -1010,7 +1010,7 @@ static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
 
 	dw1 = 1 << CMD_HDR_VERIFY_DTL_OFF;
 
-	if (is_tmf) {
+	if (tmf) {
 		dw1 |= 3 << CMD_HDR_SSP_FRAME_TYPE_OFF;
 	} else {
 		switch (scsi_cmnd->sc_data_direction) {
@@ -1031,7 +1031,7 @@ static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
 	dw1 |= sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF;
 	hdr->dw1 = cpu_to_le32(dw1);
 
-	if (is_tmf) {
+	if (tmf) {
 		dw2 = ((sizeof(struct ssp_tmf_iu) +
 			sizeof(struct ssp_frame_hdr)+3)/4) <<
 			CMD_HDR_CFL_OFF;
@@ -1062,7 +1062,7 @@ static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
 	hdr->dw2 = cpu_to_le32(dw2);
 
 	memcpy(buf_cmd, &task->ssp_task.LUN, 8);
-	if (!is_tmf) {
+	if (!tmf) {
 		buf_cmd[9] = fburst | task->ssp_task.task_attr |
 				(task->ssp_task.task_prio << 3);
 		memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

@@ -1745,8 +1745,7 @@ static void prep_smp_v2_hw(struct hisi_hba *hisi_hba,
 }
 
 static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
-			  struct hisi_sas_slot *slot, int is_tmf,
-			  struct hisi_sas_tmf_task *tmf)
+			  struct hisi_sas_slot *slot)
 {
 	struct sas_task *task = slot->task;
 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
@@ -1755,7 +1754,8 @@ static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
 	struct hisi_sas_port *port = slot->port;
 	struct sas_ssp_task *ssp_task = &task->ssp_task;
 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
-	int has_data = 0, priority = is_tmf;
+	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	int has_data = 0, priority = !!tmf;
 	u8 *buf_cmd;
 	u32 dw1 = 0, dw2 = 0;
 
@@ -1766,7 +1766,7 @@ static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
 			       (1 << CMD_HDR_CMD_OFF)); /* ssp */
 
 	dw1 = 1 << CMD_HDR_VDTL_OFF;
-	if (is_tmf) {
+	if (tmf) {
 		dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
 		dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
 	} else {
@@ -1809,7 +1809,7 @@ static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
 		sizeof(struct ssp_frame_hdr);
 
 	memcpy(buf_cmd, &task->ssp_task.LUN, 8);
-	if (!is_tmf) {
+	if (!tmf) {
 		buf_cmd[9] = task->ssp_task.task_attr |
 				(task->ssp_task.task_prio << 3);
 		memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -911,8 +911,7 @@ static void prep_prd_sge_v3_hw(struct hisi_hba *hisi_hba,
 }
 
 static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
-			  struct hisi_sas_slot *slot, int is_tmf,
-			  struct hisi_sas_tmf_task *tmf)
+			  struct hisi_sas_slot *slot)
 {
 	struct sas_task *task = slot->task;
 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
@@ -921,7 +920,8 @@ static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
 	struct hisi_sas_port *port = slot->port;
 	struct sas_ssp_task *ssp_task = &task->ssp_task;
 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
-	int has_data = 0, priority = is_tmf;
+	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	int has_data = 0, priority = !!tmf;
 	u8 *buf_cmd;
 	u32 dw1 = 0, dw2 = 0;
 
@@ -932,7 +932,7 @@ static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
 			       (1 << CMD_HDR_CMD_OFF)); /* ssp */
 
 	dw1 = 1 << CMD_HDR_VDTL_OFF;
-	if (is_tmf) {
+	if (tmf) {
 		dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
 		dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
 	} else {
@@ -974,7 +974,7 @@ static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
 		sizeof(struct ssp_frame_hdr);
 
 	memcpy(buf_cmd, &task->ssp_task.LUN, 8);
-	if (!is_tmf) {
+	if (!tmf) {
 		buf_cmd[9] = ssp_task->task_attr | (ssp_task->task_prio << 3);
 		memcpy(buf_cmd + 12, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
 	} else {