Commit 7f9b0f77 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Martin K. Petersen
Browse files

scsi: fnic: switch to generic DMA API 



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

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent c22b332d

drivers/scsi/fnic/fnic_fcs.c

+18 −23
Original line number Diff line number Diff line
@@ -836,8 +836,8 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc 
	u32 fcp_bytes_written = 0;

	unsigned long flags;



	pci_unmap_single(fnic->pdev, buf->dma_addr, buf->len,

			 PCI_DMA_FROMDEVICE);

	dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,

			 DMA_FROM_DEVICE);

	skb = buf->os_buf;

	fp = (struct fc_frame *)skb;

	buf->os_buf = NULL;
@@ -977,9 +977,8 @@ int fnic_alloc_rq_frame(struct vnic_rq *rq) 
	skb_reset_transport_header(skb);

	skb_reset_network_header(skb);

	skb_put(skb, len);

	pa = pci_map_single(fnic->pdev, skb->data, len, PCI_DMA_FROMDEVICE);



	if (pci_dma_mapping_error(fnic->pdev, pa)) {

	pa = dma_map_single(&fnic->pdev->dev, skb->data, len, DMA_FROM_DEVICE);

	if (dma_mapping_error(&fnic->pdev->dev, pa)) {

		r = -ENOMEM;

		printk(KERN_ERR "PCI mapping failed with error %d\n", r);

		goto free_skb;
@@ -998,8 +997,8 @@ void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf) 
	struct fc_frame *fp = buf->os_buf;

	struct fnic *fnic = vnic_dev_priv(rq->vdev);



	pci_unmap_single(fnic->pdev, buf->dma_addr, buf->len,

			 PCI_DMA_FROMDEVICE);

	dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,

			 DMA_FROM_DEVICE);



	dev_kfree_skb(fp_skb(fp));

	buf->os_buf = NULL;
@@ -1018,7 +1017,6 @@ void fnic_eth_send(struct fcoe_ctlr *fip, struct sk_buff *skb) 
	struct ethhdr *eth_hdr;

	struct vlan_ethhdr *vlan_hdr;

	unsigned long flags;

	int r;



	if (!fnic->vlan_hw_insert) {

		eth_hdr = (struct ethhdr *)skb_mac_header(skb);
@@ -1038,11 +1036,10 @@ void fnic_eth_send(struct fcoe_ctlr *fip, struct sk_buff *skb) 
		}

	}



	pa = pci_map_single(fnic->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);



	r = pci_dma_mapping_error(fnic->pdev, pa);

	if (r) {

		printk(KERN_ERR "PCI mapping failed with error %d\n", r);

	pa = dma_map_single(&fnic->pdev->dev, skb->data, skb->len,

			DMA_TO_DEVICE);

	if (dma_mapping_error(&fnic->pdev->dev, pa)) {

		printk(KERN_ERR "DMA mapping failed\n");

		goto free_skb;

	}
@@ -1058,7 +1055,7 @@ void fnic_eth_send(struct fcoe_ctlr *fip, struct sk_buff *skb) 


irq_restore:

	spin_unlock_irqrestore(&fnic->wq_lock[0], flags);

	pci_unmap_single(fnic->pdev, pa, skb->len, PCI_DMA_TODEVICE);

	dma_unmap_single(&fnic->pdev->dev, pa, skb->len, DMA_TO_DEVICE);

free_skb:

	kfree_skb(skb);

}
@@ -1115,9 +1112,8 @@ static int fnic_send_frame(struct fnic *fnic, struct fc_frame *fp) 
	if (FC_FCOE_VER)

		FC_FCOE_ENCAPS_VER(fcoe_hdr, FC_FCOE_VER);



	pa = pci_map_single(fnic->pdev, eth_hdr, tot_len, PCI_DMA_TODEVICE);



	if (pci_dma_mapping_error(fnic->pdev, pa)) {

	pa = dma_map_single(&fnic->pdev->dev, eth_hdr, tot_len, DMA_TO_DEVICE);

	if (dma_mapping_error(&fnic->pdev->dev, pa)) {

		ret = -ENOMEM;

		printk(KERN_ERR "DMA map failed with error %d\n", ret);

		goto free_skb_on_err;
@@ -1131,8 +1127,7 @@ static int fnic_send_frame(struct fnic *fnic, struct fc_frame *fp) 
	spin_lock_irqsave(&fnic->wq_lock[0], flags);



	if (!vnic_wq_desc_avail(wq)) {

		pci_unmap_single(fnic->pdev, pa,

				 tot_len, PCI_DMA_TODEVICE);

		dma_unmap_single(&fnic->pdev->dev, pa, tot_len, DMA_TO_DEVICE);

		ret = -1;

		goto irq_restore;

	}
@@ -1247,8 +1242,8 @@ static void fnic_wq_complete_frame_send(struct vnic_wq *wq, 
	struct fc_frame *fp = (struct fc_frame *)skb;

	struct fnic *fnic = vnic_dev_priv(wq->vdev);



	pci_unmap_single(fnic->pdev, buf->dma_addr,

			 buf->len, PCI_DMA_TODEVICE);

	dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,

			 DMA_TO_DEVICE);

	dev_kfree_skb_irq(fp_skb(fp));

	buf->os_buf = NULL;

}
@@ -1290,8 +1285,8 @@ void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf) 
	struct fc_frame *fp = buf->os_buf;

	struct fnic *fnic = vnic_dev_priv(wq->vdev);



	pci_unmap_single(fnic->pdev, buf->dma_addr,

			 buf->len, PCI_DMA_TODEVICE);

	dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,

			 DMA_TO_DEVICE);



	dev_kfree_skb(fp_skb(fp));

	buf->os_buf = NULL;

drivers/scsi/fnic/fnic_main.c

+2 −17
Original line number Diff line number Diff line
@@ -611,30 +611,15 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 
	 * limitation for the device.  Try 64-bit first, and

	 * fail to 32-bit.

	 */

	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));

	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));

	if (err) {

		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));

		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));

		if (err) {

			shost_printk(KERN_ERR, fnic->lport->host,

				     "No usable DMA configuration "

				     "aborting\n");

			goto err_out_release_regions;

		}

		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));

		if (err) {

			shost_printk(KERN_ERR, fnic->lport->host,

				     "Unable to obtain 32-bit DMA "

				     "for consistent allocations, aborting.\n");

			goto err_out_release_regions;

		}

	} else {

		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));

		if (err) {

			shost_printk(KERN_ERR, fnic->lport->host,

				     "Unable to obtain 64-bit DMA "

				     "for consistent allocations, aborting.\n");

			goto err_out_release_regions;

		}

	}



	/* Map vNIC resources from BAR0 */

drivers/scsi/fnic/fnic_scsi.c

+16 −22
Original line number Diff line number Diff line
@@ -126,17 +126,17 @@ static void fnic_release_ioreq_buf(struct fnic *fnic, 
				   struct scsi_cmnd *sc)

{

	if (io_req->sgl_list_pa)

		pci_unmap_single(fnic->pdev, io_req->sgl_list_pa,

		dma_unmap_single(&fnic->pdev->dev, io_req->sgl_list_pa,

				 sizeof(io_req->sgl_list[0]) * io_req->sgl_cnt,

				 PCI_DMA_TODEVICE);

				 DMA_TO_DEVICE);

	scsi_dma_unmap(sc);



	if (io_req->sgl_cnt)

		mempool_free(io_req->sgl_list_alloc,

			     fnic->io_sgl_pool[io_req->sgl_type]);

	if (io_req->sense_buf_pa)

		pci_unmap_single(fnic->pdev, io_req->sense_buf_pa,

				 SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE);

		dma_unmap_single(&fnic->pdev->dev, io_req->sense_buf_pa,

				 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);

}



/* Free up Copy Wq descriptors. Called with copy_wq lock held */
@@ -330,7 +330,6 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, 
	int flags;

	u8 exch_flags;

	struct scsi_lun fc_lun;

	int r;



	if (sg_count) {

		/* For each SGE, create a device desc entry */
@@ -342,30 +341,25 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic, 
			desc++;

		}



		io_req->sgl_list_pa = pci_map_single

			(fnic->pdev,

		io_req->sgl_list_pa = dma_map_single(&fnic->pdev->dev,

				io_req->sgl_list,

				sizeof(io_req->sgl_list[0]) * sg_count,

			 PCI_DMA_TODEVICE);



		r = pci_dma_mapping_error(fnic->pdev, io_req->sgl_list_pa);

		if (r) {

			printk(KERN_ERR "PCI mapping failed with error %d\n", r);

				DMA_TO_DEVICE);

		if (dma_mapping_error(&fnic->pdev->dev, io_req->sgl_list_pa)) {

			printk(KERN_ERR "DMA mapping failed\n");

			return SCSI_MLQUEUE_HOST_BUSY;

		}

	}



	io_req->sense_buf_pa = pci_map_single(fnic->pdev,

	io_req->sense_buf_pa = dma_map_single(&fnic->pdev->dev,

					      sc->sense_buffer,

					      SCSI_SENSE_BUFFERSIZE,

					      PCI_DMA_FROMDEVICE);



	r = pci_dma_mapping_error(fnic->pdev, io_req->sense_buf_pa);

	if (r) {

		pci_unmap_single(fnic->pdev, io_req->sgl_list_pa,

					      DMA_FROM_DEVICE);

	if (dma_mapping_error(&fnic->pdev->dev, io_req->sense_buf_pa)) {

		dma_unmap_single(&fnic->pdev->dev, io_req->sgl_list_pa,

				sizeof(io_req->sgl_list[0]) * sg_count,

				PCI_DMA_TODEVICE);

		printk(KERN_ERR "PCI mapping failed with error %d\n", r);

				DMA_TO_DEVICE);

		printk(KERN_ERR "DMA mapping failed\n");

		return SCSI_MLQUEUE_HOST_BUSY;

	}

drivers/scsi/fnic/vnic_dev.c

+13 −13
Original line number Diff line number Diff line
@@ -195,9 +195,9 @@ int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, 
{

	vnic_dev_desc_ring_size(ring, desc_count, desc_size);



	ring->descs_unaligned = pci_alloc_consistent(vdev->pdev,

	ring->descs_unaligned = dma_alloc_coherent(&vdev->pdev->dev,

		ring->size_unaligned,

		&ring->base_addr_unaligned);

		&ring->base_addr_unaligned, GFP_KERNEL);



	if (!ring->descs_unaligned) {

		printk(KERN_ERR
@@ -221,7 +221,7 @@ int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring, 
void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)

{

	if (ring->descs) {

		pci_free_consistent(vdev->pdev,

		dma_free_coherent(&vdev->pdev->dev,

			ring->size_unaligned,

			ring->descs_unaligned,

			ring->base_addr_unaligned);
@@ -298,9 +298,9 @@ int vnic_dev_fw_info(struct vnic_dev *vdev, 
	int err = 0;



	if (!vdev->fw_info) {

		vdev->fw_info = pci_alloc_consistent(vdev->pdev,

		vdev->fw_info = dma_alloc_coherent(&vdev->pdev->dev,

			sizeof(struct vnic_devcmd_fw_info),

			&vdev->fw_info_pa);

			&vdev->fw_info_pa, GFP_KERNEL);

		if (!vdev->fw_info)

			return -ENOMEM;
@@ -361,8 +361,8 @@ int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats) 
	int wait = 1000;



	if (!vdev->stats) {

		vdev->stats = pci_alloc_consistent(vdev->pdev,

			sizeof(struct vnic_stats), &vdev->stats_pa);

		vdev->stats = dma_alloc_coherent(&vdev->pdev->dev,

			sizeof(struct vnic_stats), &vdev->stats_pa, GFP_KERNEL);

		if (!vdev->stats)

			return -ENOMEM;

	}
@@ -523,9 +523,9 @@ int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr) 
	int wait = 1000;



	if (!vdev->notify) {

		vdev->notify = pci_alloc_consistent(vdev->pdev,

		vdev->notify = dma_alloc_coherent(&vdev->pdev->dev,

			sizeof(struct vnic_devcmd_notify),

			&vdev->notify_pa);

			&vdev->notify_pa, GFP_KERNEL);

		if (!vdev->notify)

			return -ENOMEM;

	}
@@ -647,21 +647,21 @@ void vnic_dev_unregister(struct vnic_dev *vdev) 
{

	if (vdev) {

		if (vdev->notify)

			pci_free_consistent(vdev->pdev,

			dma_free_coherent(&vdev->pdev->dev,

				sizeof(struct vnic_devcmd_notify),

				vdev->notify,

				vdev->notify_pa);

		if (vdev->linkstatus)

			pci_free_consistent(vdev->pdev,

			dma_free_coherent(&vdev->pdev->dev,

				sizeof(u32),

				vdev->linkstatus,

				vdev->linkstatus_pa);

		if (vdev->stats)

			pci_free_consistent(vdev->pdev,

			dma_free_coherent(&vdev->pdev->dev,

				sizeof(struct vnic_stats),

				vdev->stats, vdev->stats_pa);

		if (vdev->fw_info)

			pci_free_consistent(vdev->pdev,

			dma_free_coherent(&vdev->pdev->dev,

				sizeof(struct vnic_devcmd_fw_info),

				vdev->fw_info, vdev->fw_info_pa);

		kfree(vdev);

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