From 47631f854ff1938770f185afde4857018827eba3 Mon Sep 17 00:00:00 2001 From: Nick Nunley Date: Tue, 27 Apr 2010 13:10:03 +0000 Subject: [PATCH] ixgb: use DMA API instead of PCI DMA functions Signed-off-by: Nicholas Nunley Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgb/ixgb_main.c | 70 ++++++++++++++++++++---------------- 1 file changed, 39 insertions(+), 31 deletions(-) diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index 3cf7951ac152..d58ca6b578cc 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -368,16 +368,22 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) return err; - if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) && - !(err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))) { - pci_using_dac = 1; + pci_using_dac = 0; + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); + if (!err) { + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)); + if (!err) + pci_using_dac = 1; } else { - if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) || - (err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))) { - pr_err("No usable DMA configuration, aborting\n"); - goto err_dma_mask; + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) { + err = dma_set_coherent_mask(&pdev->dev, + DMA_BIT_MASK(32)); + if (err) { + pr_err("No usable DMA configuration, aborting\n"); + goto err_dma_mask; + } } - pci_using_dac = 0; } err = pci_request_regions(pdev, ixgb_driver_name); @@ -673,7 +679,8 @@ ixgb_setup_tx_resources(struct ixgb_adapter *adapter) txdr->size = txdr->count * sizeof(struct ixgb_tx_desc); txdr->size = ALIGN(txdr->size, 4096); - txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma, + GFP_KERNEL); if (!txdr->desc) { vfree(txdr->buffer_info); netif_err(adapter, probe, adapter->netdev, @@ -762,7 +769,8 @@ ixgb_setup_rx_resources(struct ixgb_adapter *adapter) rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc); rxdr->size = ALIGN(rxdr->size, 4096); - rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma, + GFP_KERNEL); if (!rxdr->desc) { vfree(rxdr->buffer_info); @@ -883,8 +891,8 @@ ixgb_free_tx_resources(struct ixgb_adapter *adapter) vfree(adapter->tx_ring.buffer_info); adapter->tx_ring.buffer_info = NULL; - pci_free_consistent(pdev, adapter->tx_ring.size, - adapter->tx_ring.desc, adapter->tx_ring.dma); + dma_free_coherent(&pdev->dev, adapter->tx_ring.size, + adapter->tx_ring.desc, adapter->tx_ring.dma); adapter->tx_ring.desc = NULL; } @@ -895,12 +903,11 @@ ixgb_unmap_and_free_tx_resource(struct ixgb_adapter *adapter, { if (buffer_info->dma) { if (buffer_info->mapped_as_page) - pci_unmap_page(adapter->pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_TODEVICE); + dma_unmap_page(&adapter->pdev->dev, buffer_info->dma, + buffer_info->length, DMA_TO_DEVICE); else - pci_unmap_single(adapter->pdev, buffer_info->dma, - buffer_info->length, - PCI_DMA_TODEVICE); + dma_unmap_single(&adapter->pdev->dev, buffer_info->dma, + buffer_info->length, DMA_TO_DEVICE); buffer_info->dma = 0; } @@ -966,7 +973,8 @@ ixgb_free_rx_resources(struct ixgb_adapter *adapter) vfree(rx_ring->buffer_info); rx_ring->buffer_info = NULL; - pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma); + dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc, + rx_ring->dma); rx_ring->desc = NULL; } @@ -990,10 +998,10 @@ ixgb_clean_rx_ring(struct ixgb_adapter *adapter) for (i = 0; i < rx_ring->count; i++) { buffer_info = &rx_ring->buffer_info[i]; if (buffer_info->dma) { - pci_unmap_single(pdev, + dma_unmap_single(&pdev->dev, buffer_info->dma, buffer_info->length, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); buffer_info->dma = 0; buffer_info->length = 0; } @@ -1300,9 +1308,10 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb, WARN_ON(buffer_info->dma != 0); buffer_info->time_stamp = jiffies; buffer_info->mapped_as_page = false; - buffer_info->dma = pci_map_single(pdev, skb->data + offset, - size, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, buffer_info->dma)) + buffer_info->dma = dma_map_single(&pdev->dev, + skb->data + offset, + size, DMA_TO_DEVICE); + if (dma_mapping_error(&pdev->dev, buffer_info->dma)) goto dma_error; buffer_info->next_to_watch = 0; @@ -1341,10 +1350,9 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb, buffer_info->time_stamp = jiffies; buffer_info->mapped_as_page = true; buffer_info->dma = - pci_map_page(pdev, frag->page, - offset, size, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, buffer_info->dma)) + dma_map_page(&pdev->dev, frag->page, + offset, size, DMA_TO_DEVICE); + if (dma_mapping_error(&pdev->dev, buffer_info->dma)) goto dma_error; buffer_info->next_to_watch = 0; @@ -1962,10 +1970,10 @@ ixgb_clean_rx_irq(struct ixgb_adapter *adapter, int *work_done, int work_to_do) cleaned = true; cleaned_count++; - pci_unmap_single(pdev, + dma_unmap_single(&pdev->dev, buffer_info->dma, buffer_info->length, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); buffer_info->dma = 0; length = le16_to_cpu(rx_desc->length); @@ -2088,10 +2096,10 @@ ixgb_alloc_rx_buffers(struct ixgb_adapter *adapter, int cleaned_count) buffer_info->skb = skb; buffer_info->length = adapter->rx_buffer_len; map_skb: - buffer_info->dma = pci_map_single(pdev, + buffer_info->dma = dma_map_single(&pdev->dev, skb->data, adapter->rx_buffer_len, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); rx_desc = IXGB_RX_DESC(*rx_ring, i); rx_desc->buff_addr = cpu_to_le64(buffer_info->dma); -- GitLab