[PATCH 16/28] mvsas: fully convert to the generic DMA API

[Christoph Hellwig <hch@xxxxxx>]

The driver is currently using an odd mix of legacy PCI DMA API and
generic DMA API calls, switch it over to the generic API entirely.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 drivers/scsi/mvsas/mv_init.c | 21 +++------------------
 drivers/scsi/mvsas/mv_sas.c  | 12 ++++++------
 2 files changed, 9 insertions(+), 24 deletions(-)

diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 8c91637cd598..3ac34373746c 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -403,29 +403,14 @@ static int pci_go_64(struct pci_dev *pdev)
 {
 	int rc;
 
-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
-		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-			if (rc) {
-				dev_printk(KERN_ERR, &pdev->dev,
-					   "64-bit DMA enable failed\n");
-				return rc;
-			}
-		}
-	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (rc) {
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc) {
 			dev_printk(KERN_ERR, &pdev->dev,
 				   "32-bit DMA enable failed\n");
 			return rc;
 		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (rc) {
-			dev_printk(KERN_ERR, &pdev->dev,
-				   "32-bit consistent DMA enable failed\n");
-			return rc;
-		}
 	}
 
 	return rc;
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index cff43bd9f675..3df1428df317 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -336,13 +336,13 @@ static int mvs_task_prep_smp(struct mvs_info *mvi,
 	 * DMA-map SMP request, response buffers
 	 */
 	sg_req = &task->smp_task.smp_req;
-	elem = dma_map_sg(mvi->dev, sg_req, 1, PCI_DMA_TODEVICE);
+	elem = dma_map_sg(mvi->dev, sg_req, 1, DMA_TO_DEVICE);
 	if (!elem)
 		return -ENOMEM;
 	req_len = sg_dma_len(sg_req);
 
 	sg_resp = &task->smp_task.smp_resp;
-	elem = dma_map_sg(mvi->dev, sg_resp, 1, PCI_DMA_FROMDEVICE);
+	elem = dma_map_sg(mvi->dev, sg_resp, 1, DMA_FROM_DEVICE);
 	if (!elem) {
 		rc = -ENOMEM;
 		goto err_out;
@@ -416,10 +416,10 @@ static int mvs_task_prep_smp(struct mvs_info *mvi,
 
 err_out_2:
 	dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1,
-		     PCI_DMA_FROMDEVICE);
+		     DMA_FROM_DEVICE);
 err_out:
 	dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1,
-		     PCI_DMA_TODEVICE);
+		     DMA_TO_DEVICE);
 	return rc;
 }
 
@@ -904,9 +904,9 @@ static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task,
 	switch (task->task_proto) {
 	case SAS_PROTOCOL_SMP:
 		dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1,
-			     PCI_DMA_FROMDEVICE);
+			     DMA_FROM_DEVICE);
 		dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1,
-			     PCI_DMA_TODEVICE);
+			     DMA_TO_DEVICE);
 		break;
 
 	case SAS_PROTOCOL_SATA:
-- 
2.19.1