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path: root/drivers/net/vxge
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-rw-r--r--drivers/net/vxge/vxge-main.c6
-rw-r--r--drivers/net/vxge/vxge-main.h1
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c
index e93651c19f59..094d15548a2b 100644
--- a/drivers/net/vxge/vxge-main.c
+++ b/drivers/net/vxge/vxge-main.c
@@ -286,6 +286,7 @@ vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size)
skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
rx_priv->skb = skb;
+ rx_priv->skb_data = NULL;
rx_priv->data_size = skb_size;
vxge_debug_entryexit(VXGE_TRACE,
"%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
@@ -305,7 +306,8 @@ static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
ring->ndev->name, __func__, __LINE__);
rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
- dma_addr = pci_map_single(ring->pdev, rx_priv->skb->data,
+ rx_priv->skb_data = rx_priv->skb->data;
+ dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data,
rx_priv->data_size, PCI_DMA_FROMDEVICE);
if (dma_addr == 0) {
@@ -450,6 +452,7 @@ vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
skb = rx_priv->skb;
data_size = rx_priv->data_size;
data_dma = rx_priv->data_dma;
+ prefetch(rx_priv->skb_data);
vxge_debug_rx(VXGE_TRACE,
"%s: %s:%d skb = 0x%p",
@@ -1056,6 +1059,7 @@ vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata)
rx_priv->data_size, PCI_DMA_FROMDEVICE);
dev_kfree_skb(rx_priv->skb);
+ rx_priv->skb_data = NULL;
vxge_debug_entryexit(VXGE_TRACE,
"%s: %s:%d Exiting...",
diff --git a/drivers/net/vxge/vxge-main.h b/drivers/net/vxge/vxge-main.h
index 8b3989bc707f..9c36b3a9a63d 100644
--- a/drivers/net/vxge/vxge-main.h
+++ b/drivers/net/vxge/vxge-main.h
@@ -378,6 +378,7 @@ struct vxgedev {
struct vxge_rx_priv {
struct sk_buff *skb;
+ unsigned char *skb_data;
dma_addr_t data_dma;
dma_addr_t data_size;
};
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