scsi/aic94xx/aic94xx_task.c

36 static int asd_map_scatterlist(struct sas_task *task,
40 	struct asd_ascb *ascb = task->lldd_task;
45 	if (task->data_dir == DMA_NONE)
48 	if (task->num_scatter == 0) {
49 		void *p = task->scatter;
51 						task->total_xfer_len,
52 						task->data_dir);
57 		sg_arr[0].size = cpu_to_le32(task->total_xfer_len);
64 	if (sas_protocol_ata(task->task_proto))
65 		num_sg = task->num_scatter;
67 		num_sg = dma_map_sg(&asd_ha->pcidev->dev, task->scatter,
68 				    task->num_scatter, task->data_dir);
82 		for_each_sg(task->scatter, sc, num_sg, i) {
91 		for_each_sg(task->scatter, sc, 2, i) {
103 		for_each_sg(task->scatter, sc, num_sg, i) {
113 	if (sas_protocol_ata(task->task_proto))
114 		dma_unmap_sg(&asd_ha->pcidev->dev, task->scatter,
115 			     task->num_scatter, task->data_dir);
122 	struct sas_task *task = ascb->uldd_task;
124 	if (task->data_dir == DMA_NONE)
127 	if (task->num_scatter == 0) {
131 				 task->total_xfer_len, task->data_dir);
136 	if (task->task_proto != SAS_PROTOCOL_STP)
137 		dma_unmap_sg(&asd_ha->pcidev->dev, task->scatter,
138 			     task->num_scatter, task->data_dir);
147 	struct sas_task *task = ascb->uldd_task;
148 	struct task_status_struct *ts = &task->task_status;
175 	if (task->task_proto == SAS_PROTOCOL_SSP) {
181 		sas_ssp_task_response(&asd_ha->pcidev->dev, task, iu);
200 	struct sas_task *task = ascb->uldd_task;
201 	struct task_status_struct *ts = &task->task_status;
311 	switch (task->task_proto) {
326 	spin_lock_irqsave(&task->task_state_lock, flags);
327 	task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
328 	task->task_state_flags |= SAS_TASK_STATE_DONE;
329 	if (unlikely((task->task_state_flags & SAS_TASK_STATE_ABORTED))) {
331 		spin_unlock_irqrestore(&task->task_state_lock, flags);
332 		ASD_DPRINTK("task 0x%p done with opcode 0x%x resp 0x%x "
334 			    task, opcode, ts->resp, ts->stat);
338 		spin_unlock_irqrestore(&task->task_state_lock, flags);
339 		task->lldd_task = NULL;
342 		task->task_done(task);
348 static int asd_build_ata_ascb(struct asd_ascb *ascb, struct sas_task *task,
351 	struct domain_device *dev = task->dev;
358 	if (unlikely(task->ata_task.device_control_reg_update))
369 	scb->ata_task.total_xfer_len = cpu_to_le32(task->total_xfer_len);
370 	scb->ata_task.fis = task->ata_task.fis;
371 	if (likely(!task->ata_task.device_control_reg_update))
375 		memcpy(scb->ata_task.atapi_packet, task->ata_task.atapi_packet,
381 	if (likely(!task->ata_task.device_control_reg_update)) {
383 		if (task->ata_task.dma_xfer)
385 		if (task->ata_task.use_ncq &&
388 		flags |= data_dir_flags[task->data_dir];
397 	if (likely(!task->ata_task.device_control_reg_update))
398 		res = asd_map_scatterlist(task, scb->ata_task.sg_element,
411 static int asd_build_smp_ascb(struct asd_ascb *ascb, struct sas_task *task,
415 	struct domain_device *dev = task->dev;
418 	dma_map_sg(&asd_ha->pcidev->dev, &task->smp_task.smp_req, 1,
420 	dma_map_sg(&asd_ha->pcidev->dev, &task->smp_task.smp_resp, 1,
430 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
432 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
435 		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
437 		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
450 	struct sas_task *task = a->uldd_task;
452 	BUG_ON(!task);
453 	dma_unmap_sg(&a->ha->pcidev->dev, &task->smp_task.smp_req, 1,
455 	dma_unmap_sg(&a->ha->pcidev->dev, &task->smp_task.smp_resp, 1,
461 static int asd_build_ssp_ascb(struct asd_ascb *ascb, struct sas_task *task,
464 	struct domain_device *dev = task->dev;
474 	scb->ssp_task.total_xfer_len = cpu_to_le32(task->total_xfer_len);
482 	memcpy(scb->ssp_task.ssp_cmd.lun, task->ssp_task.LUN, 8);
483 	scb->ssp_task.ssp_cmd.efb_prio_attr |= (task->ssp_task.task_attr & 7);
484 	memcpy(scb->ssp_task.ssp_cmd.cdb, task->ssp_task.cmd->cmnd,
485 	       task->ssp_task.cmd->cmd_len);
490 	scb->ssp_task.data_dir = data_dir_flags[task->data_dir];
495 	res = asd_map_scatterlist(task, scb->ssp_task.sg_element, gfp_flags);
522 int asd_execute_task(struct sas_task *task, gfp_t gfp_flags)
526 	struct sas_task *t = task;
528 	struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;