From 7f9b0f774fdf26a5d76363d889ba587e242a497b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 Oct 2018 18:40:56 +0200 Subject: [PATCH] scsi: fnic: switch to generic DMA API Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_fcs.c | 41 +++++++++++++++-------------------- drivers/scsi/fnic/fnic_main.c | 19 ++-------------- drivers/scsi/fnic/fnic_scsi.c | 38 ++++++++++++++------------------ drivers/scsi/fnic/vnic_dev.c | 26 +++++++++++----------- 4 files changed, 49 insertions(+), 75 deletions(-) diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c index c7bf316d8e83..844ef688fa91 100644 --- a/drivers/scsi/fnic/fnic_fcs.c +++ b/drivers/scsi/fnic/fnic_fcs.c @@ -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; diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index e52599f44170..cc461fd7bef1 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -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 */ diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 8cbd3c9f0b4c..12a2f8fa4d19 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -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, - 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); + io_req->sgl_list_pa = dma_map_single(&fnic->pdev->dev, + io_req->sgl_list, + sizeof(io_req->sgl_list[0]) * sg_count, + 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; } diff --git a/drivers/scsi/fnic/vnic_dev.c b/drivers/scsi/fnic/vnic_dev.c index ba69d6112fa1..434447ea24b8 100644 --- a/drivers/scsi/fnic/vnic_dev.c +++ b/drivers/scsi/fnic/vnic_dev.c @@ -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); -- 2.25.1