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Date: Wed, 8 Aug 2007 02:44:40 -0400
From: Jeff Garzik <jeff@...zik.org>
To: netdev@...r.kernel.org
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/3] 8139cp, 8139too: use generic DMA
commit f09934422b162e0eb7a8fd3b4b25ffc92e31541a
Author: Jeff Garzik <jeff@...zik.org>
Date: Wed Aug 8 02:16:04 2007 -0400
[netdrvr] 8139cp, 8139too: convert to generic DMA
Signed-off-by: Jeff Garzik <jeff@...zik.org>
drivers/net/8139cp.c | 31 +++++++++++++++++--------------
drivers/net/8139too.c | 20 ++++++++++----------
2 files changed, 27 insertions(+), 24 deletions(-)
f09934422b162e0eb7a8fd3b4b25ffc92e31541a
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index a79f28c..0664701 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -560,7 +560,7 @@ rx_status_loop:
skb_reserve(new_skb, RX_OFFSET);
- pci_unmap_single(cp->pdev, mapping,
+ dma_unmap_single(&cp->pdev->dev, mapping,
buflen, PCI_DMA_FROMDEVICE);
/* Handle checksum offloading for incoming packets. */
@@ -571,7 +571,7 @@ rx_status_loop:
skb_put(skb, len);
- mapping = pci_map_single(cp->pdev, new_skb->data, buflen,
+ mapping = dma_map_single(&cp->pdev->dev, new_skb->data, buflen,
PCI_DMA_FROMDEVICE);
cp->rx_skb[rx_tail] = new_skb;
@@ -704,7 +704,7 @@ static void cp_tx (struct cp_private *cp)
skb = cp->tx_skb[tx_tail];
BUG_ON(!skb);
- pci_unmap_single(cp->pdev, le64_to_cpu(txd->addr),
+ dma_unmap_single(&cp->pdev->dev, le64_to_cpu(txd->addr),
le32_to_cpu(txd->opts1) & 0xffff,
PCI_DMA_TODEVICE);
@@ -782,7 +782,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
dma_addr_t mapping;
len = skb->len;
- mapping = pci_map_single(cp->pdev, skb->data, len, PCI_DMA_TODEVICE);
+ mapping = dma_map_single(&cp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
CP_VLAN_TX_TAG(txd, vlan_tag);
txd->addr = cpu_to_le64(mapping);
wmb();
@@ -818,7 +818,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
*/
first_eor = eor;
first_len = skb_headlen(skb);
- first_mapping = pci_map_single(cp->pdev, skb->data,
+ first_mapping = dma_map_single(&cp->pdev->dev, skb->data,
first_len, PCI_DMA_TODEVICE);
cp->tx_skb[entry] = skb;
entry = NEXT_TX(entry);
@@ -830,7 +830,7 @@ static int cp_start_xmit (struct sk_buff *skb, struct net_device *dev)
dma_addr_t mapping;
len = this_frag->size;
- mapping = pci_map_single(cp->pdev,
+ mapping = dma_map_single(&cp->pdev->dev,
((void *) page_address(this_frag->page) +
this_frag->page_offset),
len, PCI_DMA_TODEVICE);
@@ -1069,8 +1069,8 @@ static int cp_refill_rx (struct cp_private *cp)
skb_reserve(skb, RX_OFFSET);
- mapping = pci_map_single(cp->pdev, skb->data, cp->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
+ mapping = dma_map_single(&cp->pdev->dev, skb->data,
+ cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
cp->rx_skb[i] = skb;
cp->rx_ring[i].opts2 = 0;
@@ -1110,7 +1110,8 @@ static int cp_alloc_rings (struct cp_private *cp)
{
void *mem;
- mem = pci_alloc_consistent(cp->pdev, CP_RING_BYTES, &cp->ring_dma);
+ mem = dma_alloc_coherent(&cp->pdev->dev, CP_RING_BYTES,
+ &cp->ring_dma, GFP_KERNEL);
if (!mem)
return -ENOMEM;
@@ -1128,7 +1129,7 @@ static void cp_clean_rings (struct cp_private *cp)
for (i = 0; i < CP_RX_RING_SIZE; i++) {
if (cp->rx_skb[i]) {
desc = cp->rx_ring + i;
- pci_unmap_single(cp->pdev, le64_to_cpu(desc->addr),
+ dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
cp->rx_buf_sz, PCI_DMA_FROMDEVICE);
dev_kfree_skb(cp->rx_skb[i]);
}
@@ -1139,7 +1140,7 @@ static void cp_clean_rings (struct cp_private *cp)
struct sk_buff *skb = cp->tx_skb[i];
desc = cp->tx_ring + i;
- pci_unmap_single(cp->pdev, le64_to_cpu(desc->addr),
+ dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
le32_to_cpu(desc->opts1) & 0xffff,
PCI_DMA_TODEVICE);
if (le32_to_cpu(desc->opts1) & LastFrag)
@@ -1158,7 +1159,8 @@ static void cp_clean_rings (struct cp_private *cp)
static void cp_free_rings (struct cp_private *cp)
{
cp_clean_rings(cp);
- pci_free_consistent(cp->pdev, CP_RING_BYTES, cp->rx_ring, cp->ring_dma);
+ dma_free_coherent(&cp->pdev->dev, CP_RING_BYTES, cp->rx_ring,
+ cp->ring_dma);
cp->rx_ring = NULL;
cp->tx_ring = NULL;
}
@@ -1517,7 +1519,8 @@ static void cp_get_ethtool_stats (struct net_device *dev,
dma_addr_t dma;
int i;
- nic_stats = pci_alloc_consistent(cp->pdev, sizeof(*nic_stats), &dma);
+ nic_stats = dma_alloc_coherent(&cp->pdev->dev, sizeof(*nic_stats),
+ &dma, GFP_KERNEL);
if (!nic_stats)
return;
@@ -1552,7 +1555,7 @@ static void cp_get_ethtool_stats (struct net_device *dev,
tmp_stats[i++] = cp->cp_stats.rx_frags;
BUG_ON(i != CP_NUM_STATS);
- pci_free_consistent(cp->pdev, sizeof(*nic_stats), nic_stats, dma);
+ dma_free_coherent(&cp->pdev->dev, sizeof(*nic_stats), nic_stats, dma);
}
static const struct ethtool_ops cp_ethtool_ops = {
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index f4e4298..0198f74 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -1314,18 +1314,18 @@ static int rtl8139_open (struct net_device *dev)
if (retval)
return retval;
- tp->tx_bufs = pci_alloc_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- &tp->tx_bufs_dma);
- tp->rx_ring = pci_alloc_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- &tp->rx_ring_dma);
+ tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ &tp->tx_bufs_dma, GFP_KERNEL);
+ tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ &tp->rx_ring_dma, GFP_KERNEL);
if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
free_irq(dev->irq, dev);
if (tp->tx_bufs)
- pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
+ dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
tp->tx_bufs, tp->tx_bufs_dma);
if (tp->rx_ring)
- pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
+ dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
tp->rx_ring, tp->rx_ring_dma);
return -ENOMEM;
@@ -2248,10 +2248,10 @@ static int rtl8139_close (struct net_device *dev)
rtl8139_tx_clear (tp);
- pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
- pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
+ dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ tp->rx_ring, tp->rx_ring_dma);
+ dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ tp->tx_bufs, tp->tx_bufs_dma);
tp->rx_ring = NULL;
tp->tx_bufs = NULL;
-
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