diff options
author | Nick Nunley <nicholasx.d.nunley@intel.com> | 2010-04-27 13:08:45 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-04-27 23:29:49 (GMT) |
commit | b16f53bef9be0a756a0672e27d0a526686040e02 (patch) | |
tree | ef44806ac770a2af3cc34501ee138ef00ed55a1f /drivers/net/e1000/e1000_main.c | |
parent | ff65e8275f6c96a5eda57493bd84c4555decf7b3 (diff) | |
download | linux-b16f53bef9be0a756a0672e27d0a526686040e02.tar.xz |
e1000: use DMA API instead of PCI DMA functions
Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
-rw-r--r-- | drivers/net/e1000/e1000_main.c | 110 |
1 files changed, 62 insertions, 48 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 974a02d..0a56e7d 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -823,13 +823,14 @@ static int __devinit e1000_probe(struct pci_dev *pdev, if (err) return err; - if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && - !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { + if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && + !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { pci_using_dac = 1; } else { - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); if (err) { - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + err = dma_set_coherent_mask(&pdev->dev, + DMA_BIT_MASK(32)); if (err) { E1000_ERR("No usable DMA configuration, " "aborting\n"); @@ -1395,7 +1396,8 @@ static int e1000_setup_tx_resources(struct e1000_adapter *adapter, txdr->size = txdr->count * sizeof(struct e1000_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) { setup_tx_desc_die: vfree(txdr->buffer_info); @@ -1411,18 +1413,21 @@ setup_tx_desc_die: DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes " "at %p\n", txdr->size, txdr->desc); /* Try again, without freeing the previous */ - txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); + txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, + &txdr->dma, GFP_KERNEL); /* Failed allocation, critical failure */ if (!txdr->desc) { - pci_free_consistent(pdev, txdr->size, olddesc, olddma); + dma_free_coherent(&pdev->dev, txdr->size, olddesc, + olddma); goto setup_tx_desc_die; } if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) { /* give up */ - pci_free_consistent(pdev, txdr->size, txdr->desc, - txdr->dma); - pci_free_consistent(pdev, txdr->size, olddesc, olddma); + dma_free_coherent(&pdev->dev, txdr->size, txdr->desc, + txdr->dma); + dma_free_coherent(&pdev->dev, txdr->size, olddesc, + olddma); DPRINTK(PROBE, ERR, "Unable to allocate aligned memory " "for the transmit descriptor ring\n"); @@ -1430,7 +1435,8 @@ setup_tx_desc_die: return -ENOMEM; } else { /* Free old allocation, new allocation was successful */ - pci_free_consistent(pdev, txdr->size, olddesc, olddma); + dma_free_coherent(&pdev->dev, txdr->size, olddesc, + olddma); } } memset(txdr->desc, 0, txdr->size); @@ -1590,7 +1596,8 @@ static int e1000_setup_rx_resources(struct e1000_adapter *adapter, rxdr->size = rxdr->count * desc_len; 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) { DPRINTK(PROBE, ERR, @@ -1607,10 +1614,12 @@ setup_rx_desc_die: DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes " "at %p\n", rxdr->size, rxdr->desc); /* Try again, without freeing the previous */ - rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma); + rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, + &rxdr->dma, GFP_KERNEL); /* Failed allocation, critical failure */ if (!rxdr->desc) { - pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + dma_free_coherent(&pdev->dev, rxdr->size, olddesc, + olddma); DPRINTK(PROBE, ERR, "Unable to allocate memory " "for the receive descriptor ring\n"); @@ -1619,16 +1628,18 @@ setup_rx_desc_die: if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) { /* give up */ - pci_free_consistent(pdev, rxdr->size, rxdr->desc, - rxdr->dma); - pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc, + rxdr->dma); + dma_free_coherent(&pdev->dev, rxdr->size, olddesc, + olddma); DPRINTK(PROBE, ERR, "Unable to allocate aligned memory " "for the receive descriptor ring\n"); goto setup_rx_desc_die; } else { /* Free old allocation, new allocation was successful */ - pci_free_consistent(pdev, rxdr->size, olddesc, olddma); + dma_free_coherent(&pdev->dev, rxdr->size, olddesc, + olddma); } } memset(rxdr->desc, 0, rxdr->size); @@ -1804,7 +1815,8 @@ static void e1000_free_tx_resources(struct e1000_adapter *adapter, vfree(tx_ring->buffer_info); tx_ring->buffer_info = NULL; - pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma); + dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc, + tx_ring->dma); tx_ring->desc = NULL; } @@ -1829,12 +1841,12 @@ static void e1000_unmap_and_free_tx_resource(struct e1000_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, + dma_unmap_single(&adapter->pdev->dev, buffer_info->dma, buffer_info->length, - PCI_DMA_TODEVICE); + DMA_TO_DEVICE); buffer_info->dma = 0; } if (buffer_info->skb) { @@ -1912,7 +1924,8 @@ static void e1000_free_rx_resources(struct e1000_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; } @@ -1952,14 +1965,14 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter, buffer_info = &rx_ring->buffer_info[i]; if (buffer_info->dma && adapter->clean_rx == e1000_clean_rx_irq) { - pci_unmap_single(pdev, buffer_info->dma, + dma_unmap_single(&pdev->dev, buffer_info->dma, buffer_info->length, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); } else if (buffer_info->dma && adapter->clean_rx == e1000_clean_jumbo_rx_irq) { - pci_unmap_page(pdev, buffer_info->dma, - buffer_info->length, - PCI_DMA_FROMDEVICE); + dma_unmap_page(&pdev->dev, buffer_info->dma, + buffer_info->length, + DMA_FROM_DEVICE); } buffer_info->dma = 0; @@ -2714,9 +2727,10 @@ static int e1000_tx_map(struct e1000_adapter *adapter, /* set time_stamp *before* dma to help avoid a possible race */ 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 = i; @@ -2760,10 +2774,10 @@ static int e1000_tx_map(struct e1000_adapter *adapter, buffer_info->length = size; buffer_info->time_stamp = jiffies; buffer_info->mapped_as_page = true; - buffer_info->dma = pci_map_page(pdev, frag->page, + buffer_info->dma = dma_map_page(&pdev->dev, frag->page, offset, size, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, buffer_info->dma)) + DMA_TO_DEVICE); + if (dma_mapping_error(&pdev->dev, buffer_info->dma)) goto dma_error; buffer_info->next_to_watch = i; @@ -3634,8 +3648,8 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, cleaned = true; cleaned_count++; - pci_unmap_page(pdev, buffer_info->dma, buffer_info->length, - PCI_DMA_FROMDEVICE); + dma_unmap_page(&pdev->dev, buffer_info->dma, + buffer_info->length, DMA_FROM_DEVICE); buffer_info->dma = 0; length = le16_to_cpu(rx_desc->length); @@ -3817,8 +3831,8 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, cleaned = true; cleaned_count++; - pci_unmap_single(pdev, buffer_info->dma, buffer_info->length, - PCI_DMA_FROMDEVICE); + dma_unmap_single(&pdev->dev, buffer_info->dma, + buffer_info->length, DMA_FROM_DEVICE); buffer_info->dma = 0; length = le16_to_cpu(rx_desc->length); @@ -3998,11 +4012,11 @@ check_page: } if (!buffer_info->dma) { - buffer_info->dma = pci_map_page(pdev, + buffer_info->dma = dma_map_page(&pdev->dev, buffer_info->page, 0, - buffer_info->length, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(pdev, buffer_info->dma)) { + buffer_info->length, + DMA_FROM_DEVICE); + if (dma_mapping_error(&pdev->dev, buffer_info->dma)) { put_page(buffer_info->page); dev_kfree_skb(skb); buffer_info->page = NULL; @@ -4098,11 +4112,11 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, 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, buffer_info->length, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(pdev, buffer_info->dma)) { + DMA_FROM_DEVICE); + if (dma_mapping_error(&pdev->dev, buffer_info->dma)) { dev_kfree_skb(skb); buffer_info->skb = NULL; buffer_info->dma = 0; @@ -4126,9 +4140,9 @@ map_skb: dev_kfree_skb(skb); buffer_info->skb = NULL; - pci_unmap_single(pdev, buffer_info->dma, + dma_unmap_single(&pdev->dev, buffer_info->dma, adapter->rx_buffer_len, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); buffer_info->dma = 0; adapter->alloc_rx_buff_failed++; |