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kernel: rewrite the phy packet hook, put it in the network stack to avoid having to keep non-upstream ethernet driver changes

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31637 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2012-05-06 21:19:14 +00:00
parent ecb548b2e5
commit d4d537811b
37 changed files with 414 additions and 444 deletions
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40
target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
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@@ -196,28 +196,24 @@ static void ag71xx_ring_rx_clean(struct ag71xx *ag)
}
}
static int ag71xx_rx_reserve(struct ag71xx *ag)
struct sk_buff *ag71xx_rx_alloc(struct ag71xx *ag)
{
int reserve = 0;
/*
* On AR71xx/AR91xx packets must be 4-byte aligned.
*
* When using builtin AR8216 support, hardware adds a 2-byte header,
* so we don't need any extra alignment in that case.
*/
if (!ag71xx_get_pdata(ag)->is_ar724x || ag71xx_has_ar8216(ag))
return netdev_alloc_skb(ag->dev, AG71XX_RX_PKT_SIZE);
if (ag71xx_get_pdata(ag)->is_ar724x) {
if (!ag71xx_has_ar8216(ag))
reserve = 2;
if (ag->phy_dev)
reserve += 4 - (ag->phy_dev->pkt_align % 4);
reserve %= 4;
}
return reserve + AG71XX_RX_PKT_RESERVE;
return netdev_alloc_skb_ip_align(ag->dev, AG71XX_RX_PKT_SIZE);
}
static int ag71xx_ring_rx_init(struct ag71xx *ag)
{
struct ag71xx_ring *ring = &ag->rx_ring;
unsigned int reserve = ag71xx_rx_reserve(ag);
unsigned int i;
int ret;
@@ -235,15 +231,13 @@ static int ag71xx_ring_rx_init(struct ag71xx *ag)
struct sk_buff *skb;
dma_addr_t dma_addr;
skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE + reserve);
skb = ag71xx_rx_alloc(ag);
if (!skb) {
ret = -ENOMEM;
break;
}
skb->dev = ag->dev;
skb_reserve(skb, reserve);
dma_addr = dma_map_single(&ag->dev->dev, skb->data,
AG71XX_RX_PKT_SIZE,
DMA_FROM_DEVICE);
@@ -265,7 +259,6 @@ static int ag71xx_ring_rx_init(struct ag71xx *ag)
static int ag71xx_ring_rx_refill(struct ag71xx *ag)
{
struct ag71xx_ring *ring = &ag->rx_ring;
unsigned int reserve = ag71xx_rx_reserve(ag);
unsigned int count;
count = 0;
@@ -278,11 +271,10 @@ static int ag71xx_ring_rx_refill(struct ag71xx *ag)
dma_addr_t dma_addr;
struct sk_buff *skb;
skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE + reserve);
skb = ag71xx_rx_alloc(ag);
if (skb == NULL)
break;
skb_reserve(skb, reserve);
skb->dev = ag->dev;
dma_addr = dma_map_single(&ag->dev->dev, skb->data,
@@ -914,12 +906,8 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
} else {
skb->dev = dev;
skb->ip_summed = CHECKSUM_NONE;
if (ag->phy_dev) {
ag->phy_dev->netif_receive_skb(skb);
} else {
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
}
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
}
ring->buf[i].skb = NULL;