scsi: pmcraid: use generic DMA API

Switch from the legacy PCI DMA API to the generic DMA API.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 36 insertions, 43 deletions

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 401e543f1723..707d766c1ee9 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -3514,7 +3514,7 @@ static int pmcraid_build_passthrough_ioadls(
                 return -ENOMEM;
         }
 
-        sglist->num_dma_sg = pci_map_sg(cmd->drv_inst->pdev,
+        sglist->num_dma_sg = dma_map_sg(&cmd->drv_inst->pdev->dev,
                                         sglist->scatterlist,
                                         sglist->num_sg, direction);
 
@@ -3563,7 +3563,7 @@ static void pmcraid_release_passthrough_ioadls(
         struct pmcraid_sglist *sglist = cmd->sglist;
 
         if (buflen > 0) {
-                pci_unmap_sg(cmd->drv_inst->pdev,
+                dma_unmap_sg(&cmd->drv_inst->pdev->dev,
                              sglist->scatterlist,
                              sglist->num_sg,
                              direction);
@@ -4699,9 +4699,9 @@ static void
 pmcraid_release_host_rrqs(struct pmcraid_instance *pinstance, int maxindex)
 {
         int i;
-        for (i = 0; i < maxindex; i++) {
 
-                pci_free_consistent(pinstance->pdev,
+        for (i = 0; i < maxindex; i++) {
+                dma_free_coherent(&pinstance->pdev->dev,
                                     HRRQ_ENTRY_SIZE * PMCRAID_MAX_CMD,
                                     pinstance->hrrq_start[i],
                                     pinstance->hrrq_start_bus_addr[i]);
@@ -4728,11 +4728,9 @@ static int pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance)
 
         for (i = 0; i < pinstance->num_hrrq; i++) {
                 pinstance->hrrq_start[i] =
-                        pci_alloc_consistent(
-                                        pinstance->pdev,
-                                        buffer_size,
-                                        &(pinstance->hrrq_start_bus_addr[i]));
-
+                        dma_alloc_coherent(&pinstance->pdev->dev, buffer_size,
+                                           &pinstance->hrrq_start_bus_addr[i],
+                                           GFP_KERNEL);
                 if (!pinstance->hrrq_start[i]) {
                         pmcraid_err("pci_alloc failed for hrrq vector : %d\n",
                                     i);
@@ -4761,7 +4759,7 @@ static int pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance)
 static void pmcraid_release_hcams(struct pmcraid_instance *pinstance)
 {
         if (pinstance->ccn.msg != NULL) {
-                pci_free_consistent(pinstance->pdev,
+                dma_free_coherent(&pinstance->pdev->dev,
                                     PMCRAID_AEN_HDR_SIZE +
                                     sizeof(struct pmcraid_hcam_ccn_ext),
                                     pinstance->ccn.msg,
@@ -4773,7 +4771,7 @@ static void pmcraid_release_hcams(struct pmcraid_instance *pinstance)
         }
 
         if (pinstance->ldn.msg != NULL) {
-                pci_free_consistent(pinstance->pdev,
+                dma_free_coherent(&pinstance->pdev->dev,
                                     PMCRAID_AEN_HDR_SIZE +
                                     sizeof(struct pmcraid_hcam_ldn),
                                     pinstance->ldn.msg,
@@ -4794,17 +4792,15 @@ static void pmcraid_release_hcams(struct pmcraid_instance *pinstance)
  */
 static int pmcraid_allocate_hcams(struct pmcraid_instance *pinstance)
 {
-        pinstance->ccn.msg = pci_alloc_consistent(
-                                        pinstance->pdev,
+        pinstance->ccn.msg = dma_alloc_coherent(&pinstance->pdev->dev,
                                         PMCRAID_AEN_HDR_SIZE +
                                         sizeof(struct pmcraid_hcam_ccn_ext),
-                                        &(pinstance->ccn.baddr));
+                                        &pinstance->ccn.baddr, GFP_KERNEL);
 
-        pinstance->ldn.msg = pci_alloc_consistent(
-                                        pinstance->pdev,
+        pinstance->ldn.msg = dma_alloc_coherent(&pinstance->pdev->dev,
                                         PMCRAID_AEN_HDR_SIZE +
                                         sizeof(struct pmcraid_hcam_ldn),
-                                        &(pinstance->ldn.baddr));
+                                        &pinstance->ldn.baddr, GFP_KERNEL);
 
         if (pinstance->ldn.msg == NULL || pinstance->ccn.msg == NULL) {
                 pmcraid_release_hcams(pinstance);
@@ -4832,7 +4828,7 @@ static void pmcraid_release_config_buffers(struct pmcraid_instance *pinstance)
 {
         if (pinstance->cfg_table != NULL &&
             pinstance->cfg_table_bus_addr != 0) {
-                pci_free_consistent(pinstance->pdev,
+                dma_free_coherent(&pinstance->pdev->dev,
                                     sizeof(struct pmcraid_config_table),
                                     pinstance->cfg_table,
                                     pinstance->cfg_table_bus_addr);
@@ -4877,10 +4873,10 @@ static int pmcraid_allocate_config_buffers(struct pmcraid_instance *pinstance)
                 list_add_tail(&pinstance->res_entries[i].queue,
                               &pinstance->free_res_q);
 
-        pinstance->cfg_table =
-                pci_alloc_consistent(pinstance->pdev,
+        pinstance->cfg_table = dma_alloc_coherent(&pinstance->pdev->dev,
                                      sizeof(struct pmcraid_config_table),
-                                     &pinstance->cfg_table_bus_addr);
+                                     &pinstance->cfg_table_bus_addr,
+                                     GFP_KERNEL);
 
         if (NULL == pinstance->cfg_table) {
                 pmcraid_err("couldn't alloc DMA memory for config table\n");
@@ -4945,7 +4941,7 @@ static void pmcraid_release_buffers(struct pmcraid_instance *pinstance)
         pmcraid_release_host_rrqs(pinstance, pinstance->num_hrrq);
 
         if (pinstance->inq_data != NULL) {
-                pci_free_consistent(pinstance->pdev,
+                dma_free_coherent(&pinstance->pdev->dev,
                                     sizeof(struct pmcraid_inquiry_data),
                                     pinstance->inq_data,
                                     pinstance->inq_data_baddr);
@@ -4955,7 +4951,7 @@ static void pmcraid_release_buffers(struct pmcraid_instance *pinstance)
         }
 
         if (pinstance->timestamp_data != NULL) {
-                pci_free_consistent(pinstance->pdev,
+                dma_free_coherent(&pinstance->pdev->dev,
                                     sizeof(struct pmcraid_timestamp_data),
                                     pinstance->timestamp_data,
                                     pinstance->timestamp_data_baddr);
@@ -4972,8 +4968,8 @@ static void pmcraid_release_buffers(struct pmcraid_instance *pinstance)
  * This routine pre-allocates memory based on the type of block as below:
  * cmdblocks(PMCRAID_MAX_CMD): kernel memory using kernel's slab_allocator,
  * IOARCBs(PMCRAID_MAX_CMD)  : DMAable memory, using pci pool allocator
- * config-table entries      : DMAable memory using pci_alloc_consistent
- * HostRRQs                  : DMAable memory, using pci_alloc_consistent
+ * config-table entries      : DMAable memory using dma_alloc_coherent
+ * HostRRQs                  : DMAable memory, using dma_alloc_coherent
  *
  * Return Value
  *       0 in case all of the blocks are allocated, -ENOMEM otherwise.
@@ -5010,11 +5006,9 @@ static int pmcraid_init_buffers(struct pmcraid_instance *pinstance)
         }
 
         /* allocate DMAable memory for page D0 INQUIRY buffer */
-        pinstance->inq_data = pci_alloc_consistent(
-                                        pinstance->pdev,
+        pinstance->inq_data = dma_alloc_coherent(&pinstance->pdev->dev,
                                         sizeof(struct pmcraid_inquiry_data),
-                                        &pinstance->inq_data_baddr);
-
+                                        &pinstance->inq_data_baddr, GFP_KERNEL);
         if (pinstance->inq_data == NULL) {
                 pmcraid_err("couldn't allocate DMA memory for INQUIRY\n");
                 pmcraid_release_buffers(pinstance);
@@ -5022,11 +5016,10 @@ static int pmcraid_init_buffers(struct pmcraid_instance *pinstance)
         }
 
         /* allocate DMAable memory for set timestamp data buffer */
-        pinstance->timestamp_data = pci_alloc_consistent(
-                                        pinstance->pdev,
+        pinstance->timestamp_data = dma_alloc_coherent(&pinstance->pdev->dev,
                                         sizeof(struct pmcraid_timestamp_data),
-                                        &pinstance->timestamp_data_baddr);
-
+                                        &pinstance->timestamp_data_baddr,
+                                        GFP_KERNEL);
         if (pinstance->timestamp_data == NULL) {
                 pmcraid_err("couldn't allocate DMA memory for \
                                 set time_stamp \n");
@@ -5315,12 +5308,12 @@ static int pmcraid_resume(struct pci_dev *pdev)
 
         pci_set_master(pdev);
 
-        if ((sizeof(dma_addr_t) == 4) ||
-             pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
-                rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+        if (sizeof(dma_addr_t) == 4 ||
+            dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)))
+                rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 
         if (rc == 0)
-                rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+                rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 
         if (rc != 0) {
                 dev_err(&pdev->dev, "resume: Failed to set PCI DMA mask\n");
@@ -5724,19 +5717,19 @@ static int pmcraid_probe(struct pci_dev *pdev,
         /* Firmware requires the system bus address of IOARCB to be within
          * 32-bit addressable range though it has 64-bit IOARRIN register.
          * However, firmware supports 64-bit streaming DMA buffers, whereas
-         * coherent buffers are to be 32-bit. Since pci_alloc_consistent always
+         * coherent buffers are to be 32-bit. Since dma_alloc_coherent always
          * returns memory within 4GB (if not, change this logic), coherent
          * buffers are within firmware acceptable address ranges.
          */
-        if ((sizeof(dma_addr_t) == 4) ||
-            pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
-                rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+        if (sizeof(dma_addr_t) == 4 ||
+            dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)))
+                rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 
         /* firmware expects 32-bit DMA addresses for IOARRIN register; set 32
-         * bit mask for pci_alloc_consistent to return addresses within 4GB
+         * bit mask for dma_alloc_coherent to return addresses within 4GB
          */
         if (rc == 0)
-                rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+                rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 
         if (rc != 0) {
                 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");