scsi: libsas: Add struct sas_tmf_task

Some of the LLDDs which use libsas have their own definition of a struct
to hold TMF info, so add a common struct for libsas.

Also add an interim force phy id field for hisi_sas driver, which will be
removed once the STP "TMF" code is factored out.

Even though some LLDDs (pm8001) use a u32 for the tag, u16 will be adequate,
as that named driver only uses tags in range [0, 1024).

Link: https://lore.kernel.org/r/[e-mail]
Tested-by: Yihang Li <[e-mail]>
Tested-by: Damien Le Moal <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
Signed-off-by: John Garry <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/hisi_sas/hisi_sas.h

···
 	spinlock_t lock; /* For protecting slots */
 };
 
-struct hisi_sas_tmf_task {
-	int force_phy;
-	int phy_id;
-	u8 tmf;
-	u16 tag_of_task_to_be_managed;
-};
-
 struct hisi_sas_slot {
 	struct list_head entry;
 	struct list_head delivery;
···
 	dma_addr_t cmd_hdr_dma;
 	struct timer_list internal_abort_timer;
 	bool is_internal;
-	struct hisi_sas_tmf_task *tmf;
+	struct sas_tmf_task *tmf;
 	/* Do not reorder/change members after here */
 	void	*buf;
 	dma_addr_t buf_dma;

drivers/scsi/hisi_sas/hisi_sas_main.c

···
 	((!dev) || (dev->dev_type == SAS_PHY_UNUSED))
 
 static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
-				u8 *lun, struct hisi_sas_tmf_task *tmf);
+				u8 *lun, struct sas_tmf_task *tmf);
 static int
 hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 			     struct domain_device *device,
···
 }
 
 static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
-			      struct hisi_sas_tmf_task *tmf)
+			      struct sas_tmf_task *tmf)
 {
 	int n_elem = 0, n_elem_dif = 0, n_elem_req = 0;
 	struct domain_device *device = task->dev;
···
 {
 	int rc = TMF_RESP_FUNC_COMPLETE;
 	struct scsi_lun lun;
-	struct hisi_sas_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	int retry = HISI_SAS_DISK_RECOVER_CNT;
 	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
 	struct device *dev = hisi_hba->dev;
···
 #define INTERNAL_ABORT_TIMEOUT		(6 * HZ)
 static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
 					   void *parameter, u32 para_len,
-					   struct hisi_sas_tmf_task *tmf)
+					   struct sas_tmf_task *tmf)
 {
 	struct hisi_sas_device *sas_dev = device->lldd_dev;
 	struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
···
 	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
 	struct device *dev = hisi_hba->dev;
 	int s = sizeof(struct host_to_dev_fis);
-	struct hisi_sas_tmf_task tmf = {};
+	struct sas_tmf_task tmf = {};
 
 	ata_for_each_link(link, ap, EDGE) {
 		int pmp = sata_srst_pmp(link);
···
 }
 
 static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
-				u8 *lun, struct hisi_sas_tmf_task *tmf)
+				u8 *lun, struct sas_tmf_task *tmf)
 {
 	struct sas_ssp_task ssp_task;
 
···
 					     struct asd_sas_port *sas_port,
 					     struct domain_device *device)
 {
-	struct hisi_sas_tmf_task tmf_task = { .force_phy = 1 };
+	struct sas_tmf_task tmf_task = { .force_phy = 1 };
 	struct ata_port *ap = device->sata_dev.ap;
 	struct device *dev = hisi_hba->dev;
 	int s = sizeof(struct host_to_dev_fis);
···
 static int hisi_sas_abort_task(struct sas_task *task)
 {
 	struct scsi_lun lun;
-	struct hisi_sas_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	struct domain_device *device = task->dev;
 	struct hisi_sas_device *sas_dev = device->lldd_dev;
 	struct hisi_hba *hisi_hba;
···
 {
 	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
 	struct device *dev = hisi_hba->dev;
-	struct hisi_sas_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	int rc;
 
 	rc = hisi_sas_internal_task_abort(hisi_hba, device,
···
 			hisi_sas_release_task(hisi_hba, device);
 		sas_put_local_phy(phy);
 	} else {
-		struct hisi_sas_tmf_task tmf_task = { .tmf =  TMF_LU_RESET };
+		struct sas_tmf_task tmf_task = { .tmf =  TMF_LU_RESET };
 
 		rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
 		if (rc == TMF_RESP_FUNC_COMPLETE)
···
 static int hisi_sas_query_task(struct sas_task *task)
 {
 	struct scsi_lun lun;
-	struct hisi_sas_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	int rc = TMF_RESP_FUNC_FAILED;
 
 	if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {

drivers/scsi/hisi_sas/hisi_sas_v1_hw.c

···
 	struct hisi_sas_port *port = slot->port;
 	struct sas_ssp_task *ssp_task = &task->ssp_task;
 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
-	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	struct sas_tmf_task *tmf = slot->tmf;
 	int has_data = 0, priority = !!tmf;
 	u8 *buf_cmd, fburst = 0;
 	u32 dw1, dw2;

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

···
 	struct hisi_sas_port *port = slot->port;
 	struct sas_ssp_task *ssp_task = &task->ssp_task;
 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
-	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	struct sas_tmf_task *tmf = slot->tmf;
 	int has_data = 0, priority = !!tmf;
 	u8 *buf_cmd;
 	u32 dw1 = 0, dw2 = 0;
···
 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
 	struct asd_sas_port *sas_port = device->port;
 	struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
-	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	struct sas_tmf_task *tmf = slot->tmf;
 	u8 *buf_cmd;
 	int has_data = 0, hdr_tag = 0;
 	u32 dw0, dw1 = 0, dw2 = 0;

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

···
 	struct hisi_sas_port *port = slot->port;
 	struct sas_ssp_task *ssp_task = &task->ssp_task;
 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
-	struct hisi_sas_tmf_task *tmf = slot->tmf;
+	struct sas_tmf_task *tmf = slot->tmf;
 	int has_data = 0, priority = !!tmf;
 	unsigned char prot_op;
 	u8 *buf_cmd;

drivers/scsi/mvsas/mv_defs.h

···
 	SENSE_DATA	= 2,
 };
 
-/* define task management IU */
-struct mvs_tmf_task{
-	u8 tmf;
-	u16 tag_of_task_to_be_managed;
-};
 #endif

drivers/scsi/mvsas/mv_sas.c

···
 
 static int mvs_task_prep_ssp(struct mvs_info *mvi,
 			     struct mvs_task_exec_info *tei, int is_tmf,
-			     struct mvs_tmf_task *tmf)
+			     struct sas_tmf_task *tmf)
 {
 	struct sas_task *task = tei->task;
 	struct mvs_cmd_hdr *hdr = tei->hdr;
···
 
 #define	DEV_IS_GONE(mvi_dev)	((!mvi_dev || (mvi_dev->dev_type == SAS_PHY_UNUSED)))
 static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf,
-				struct mvs_tmf_task *tmf, int *pass)
+				struct sas_tmf_task *tmf, int *pass)
 {
 	struct domain_device *dev = task->dev;
 	struct mvs_device *mvi_dev = dev->lldd_dev;
···
 
 static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags,
 				struct completion *completion, int is_tmf,
-				struct mvs_tmf_task *tmf)
+				struct sas_tmf_task *tmf)
 {
 	struct mvs_info *mvi = NULL;
 	u32 rc = 0;
···
 
 #define MVS_TASK_TIMEOUT 20
 static int mvs_exec_internal_tmf_task(struct domain_device *dev,
-			void *parameter, u32 para_len, struct mvs_tmf_task *tmf)
+			void *parameter, u32 para_len, struct sas_tmf_task *tmf)
 {
 	int res, retry;
 	struct sas_task *task = NULL;
···
 }
 
 static int mvs_debug_issue_ssp_tmf(struct domain_device *dev,
-				u8 *lun, struct mvs_tmf_task *tmf)
+				u8 *lun, struct sas_tmf_task *tmf)
 {
 	struct sas_ssp_task ssp_task;
 	if (!(dev->tproto & SAS_PROTOCOL_SSP))
···
 {
 	unsigned long flags;
 	int rc = TMF_RESP_FUNC_FAILED;
-	struct mvs_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	struct mvs_device * mvi_dev = dev->lldd_dev;
 	struct mvs_info *mvi = mvi_dev->mvi_info;
 
···
 {
 	u32 tag;
 	struct scsi_lun lun;
-	struct mvs_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	int rc = TMF_RESP_FUNC_FAILED;
 
 	if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
···
 int mvs_abort_task(struct sas_task *task)
 {
 	struct scsi_lun lun;
-	struct mvs_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	struct domain_device *dev = task->dev;
 	struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
 	struct mvs_info *mvi;
···
 int mvs_abort_task_set(struct domain_device *dev, u8 *lun)
 {
 	int rc;
-	struct mvs_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 
 	tmf_task.tmf = TMF_ABORT_TASK_SET;
 	rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
···
 int mvs_clear_task_set(struct domain_device *dev, u8 *lun)
 {
 	int rc = TMF_RESP_FUNC_FAILED;
-	struct mvs_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 
 	tmf_task.tmf = TMF_CLEAR_TASK_SET;
 	rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);

drivers/scsi/pm8001/pm8001_hwi.c

···
  * @tmf: task management function.
  */
 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
-	struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
+	struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf)
 {
 	struct sas_task *task = ccb->task;
 	struct domain_device *dev = task->dev;
···
 
 	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
 	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
-	sspTMCmd.relate_tag = cpu_to_le32(tmf->tag_of_task_to_be_managed);
+	sspTMCmd.relate_tag = cpu_to_le32((u32)tmf->tag_of_task_to_be_managed);
 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);

drivers/scsi/pm8001/pm8001_sas.c

···
   * @tmf: the task management IU
   */
 static int pm8001_task_prep_ssp_tm(struct pm8001_hba_info *pm8001_ha,
-	struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
+	struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf)
 {
 	return PM8001_CHIP_DISP->ssp_tm_req(pm8001_ha, ccb, tmf);
 }
···
   * @tmf: the task management IU
   */
 static int pm8001_task_exec(struct sas_task *task,
-	gfp_t gfp_flags, int is_tmf, struct pm8001_tmf_task *tmf)
+	gfp_t gfp_flags, int is_tmf, struct sas_tmf_task *tmf)
 {
 	struct domain_device *dev = task->dev;
 	struct pm8001_hba_info *pm8001_ha;
···
   * this function, note it is also with the task execute interface.
   */
 static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
-	void *parameter, u32 para_len, struct pm8001_tmf_task *tmf)
+	void *parameter, u32 para_len, struct sas_tmf_task *tmf)
 {
 	int res, retry;
 	struct sas_task *task = NULL;
···
 }
 
 static int pm8001_issue_ssp_tmf(struct domain_device *dev,
-	u8 *lun, struct pm8001_tmf_task *tmf)
+	u8 *lun, struct sas_tmf_task *tmf)
 {
 	struct sas_ssp_task ssp_task;
 	if (!(dev->tproto & SAS_PROTOCOL_SSP))
···
 int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
 {
 	int rc = TMF_RESP_FUNC_FAILED;
-	struct pm8001_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
 	struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
 	DECLARE_COMPLETION_ONSTACK(completion_setstate);
···
 {
 	u32 tag = 0xdeadbeef;
 	struct scsi_lun lun;
-	struct pm8001_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	int rc = TMF_RESP_FUNC_FAILED;
 	if (unlikely(!task || !task->lldd_task || !task->dev))
 		return rc;
···
 	struct pm8001_hba_info *pm8001_ha;
 	struct scsi_lun lun;
 	struct pm8001_device *pm8001_dev;
-	struct pm8001_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	int rc = TMF_RESP_FUNC_FAILED, ret;
 	u32 phy_id, port_id;
 	struct sas_task_slow slow_task;
···
 
 int pm8001_abort_task_set(struct domain_device *dev, u8 *lun)
 {
-	struct pm8001_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 
 	tmf_task.tmf = TMF_ABORT_TASK_SET;
 	return pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
···
 
 int pm8001_clear_task_set(struct domain_device *dev, u8 *lun)
 {
-	struct pm8001_tmf_task tmf_task;
+	struct sas_tmf_task tmf_task;
 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
 	struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
 

drivers/scsi/pm8001/pm8001_sas.h

···
 struct pm8001_hba_info;
 struct pm8001_ccb_info;
 struct pm8001_device;
-/* define task management IU */
-struct pm8001_tmf_task {
-	u8	tmf;
-	u32	tag_of_task_to_be_managed;
-};
+
 struct pm8001_ioctl_payload {
 	u32	signature;
 	u16	major_function;
···
 		struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag,
 		u32 cmd_tag);
 	int (*ssp_tm_req)(struct pm8001_hba_info *pm8001_ha,
-		struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf);
+		struct pm8001_ccb_info *ccb, struct sas_tmf_task *tmf);
 	int (*get_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
 	int (*set_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
 	int (*fw_flash_update_req)(struct pm8001_hba_info *pm8001_ha,
···
 int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha, void *payload);
 int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
 				struct pm8001_ccb_info *ccb,
-				struct pm8001_tmf_task *tmf);
+				struct sas_tmf_task *tmf);
 int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
 				struct pm8001_device *pm8001_dev,
 				u8 flag, u32 task_tag, u32 cmd_tag);

include/scsi/libsas.h

···
 	struct scsi_cmnd *cmd;
 };
 
+struct sas_tmf_task {
+	u8 tmf;
+	u16 tag_of_task_to_be_managed;
+
+	/* Temp */
+	int force_phy;
+	int phy_id;
+};
+
 struct sas_task {
 	struct domain_device *dev;