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Merge branch 'for-2.6.27' of git://git.marvell.com/mv643xx_eth into upstream-fixes

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Jeff Garzik 2008-08-27 05:10:25 -04:00 • committed by Jeff Garzik
commit 373a5e0247
1 changed files with 20 additions and 15 deletions
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35
drivers/net/mv643xx_eth.c
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@ -55,7 +55,7 @@
#include <asm/system.h> #include <asm/system.h>
static char mv643xx_eth_driver_name[] = "mv643xx_eth"; static char mv643xx_eth_driver_name[] = "mv643xx_eth";
static char mv643xx_eth_driver_version[] = "1.2"; static char mv643xx_eth_driver_version[] = "1.3";
#define MV643XX_ETH_CHECKSUM_OFFLOAD_TX #define MV643XX_ETH_CHECKSUM_OFFLOAD_TX
#define MV643XX_ETH_NAPI #define MV643XX_ETH_NAPI
@ -474,11 +474,19 @@ static void rxq_refill(struct rx_queue *rxq)
/* /*
* Reserve 2+14 bytes for an ethernet header (the * Reserve 2+14 bytes for an ethernet header (the
* hardware automatically prepends 2 bytes of dummy * hardware automatically prepends 2 bytes of dummy
* data to each received packet), 4 bytes for a VLAN * data to each received packet), 16 bytes for up to
* header, and 4 bytes for the trailing FCS -- 24 * four VLAN tags, and 4 bytes for the trailing FCS
* bytes total. * -- 36 bytes total.
*/ */
skb_size = mp->dev->mtu + 24; skb_size = mp->dev->mtu + 36;
/*
* Make sure that the skb size is a multiple of 8
* bytes, as the lower three bits of the receive
* descriptor's buffer size field are ignored by
* the hardware.
*/
skb_size = (skb_size + 7) & ~7;
skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1); skb = dev_alloc_skb(skb_size + dma_get_cache_alignment() - 1);
if (skb == NULL) if (skb == NULL)
@ -509,10 +517,8 @@ static void rxq_refill(struct rx_queue *rxq)
skb_reserve(skb, 2); skb_reserve(skb, 2);
} }
if (rxq->rx_desc_count != rxq->rx_ring_size) { if (rxq->rx_desc_count != rxq->rx_ring_size)
rxq->rx_oom.expires = jiffies + (HZ / 10); mod_timer(&rxq->rx_oom, jiffies + (HZ / 10));
add_timer(&rxq->rx_oom);
}
spin_unlock_irqrestore(&mp->lock, flags); spin_unlock_irqrestore(&mp->lock, flags);
} }
@ -529,7 +535,7 @@ static int rxq_process(struct rx_queue *rxq, int budget)
int rx; int rx;
rx = 0; rx = 0;
while (rx < budget) { while (rx < budget && rxq->rx_desc_count) {
struct rx_desc *rx_desc; struct rx_desc *rx_desc;
unsigned int cmd_sts; unsigned int cmd_sts;
struct sk_buff *skb; struct sk_buff *skb;
@ -554,7 +560,7 @@ static int rxq_process(struct rx_queue *rxq, int budget)
spin_unlock_irqrestore(&mp->lock, flags); spin_unlock_irqrestore(&mp->lock, flags);
dma_unmap_single(NULL, rx_desc->buf_ptr + 2, dma_unmap_single(NULL, rx_desc->buf_ptr + 2,
mp->dev->mtu + 24, DMA_FROM_DEVICE); rx_desc->buf_size, DMA_FROM_DEVICE);
rxq->rx_desc_count--; rxq->rx_desc_count--;
rx++; rx++;
@ -636,9 +642,9 @@ static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
txq_reclaim(mp->txq + i, 0); txq_reclaim(mp->txq + i, 0);
if (netif_carrier_ok(mp->dev)) { if (netif_carrier_ok(mp->dev)) {
spin_lock(&mp->lock); spin_lock_irq(&mp->lock);
__txq_maybe_wake(mp->txq + mp->txq_primary); __txq_maybe_wake(mp->txq + mp->txq_primary);
spin_unlock(&mp->lock); spin_unlock_irq(&mp->lock);
} }
} }
#endif #endif
@ -650,8 +656,6 @@ static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
if (rx < budget) { if (rx < budget) {
netif_rx_complete(mp->dev, napi); netif_rx_complete(mp->dev, napi);
wrl(mp, INT_CAUSE(mp->port_num), 0);
wrl(mp, INT_CAUSE_EXT(mp->port_num), 0);
wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT);
} }
@ -1796,6 +1800,7 @@ static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id)
*/ */
#ifdef MV643XX_ETH_NAPI #ifdef MV643XX_ETH_NAPI
if (int_cause & INT_RX) { if (int_cause & INT_RX) {
wrl(mp, INT_CAUSE(mp->port_num), ~(int_cause & INT_RX));
wrl(mp, INT_MASK(mp->port_num), 0x00000000); wrl(mp, INT_MASK(mp->port_num), 0x00000000);
rdl(mp, INT_MASK(mp->port_num)); rdl(mp, INT_MASK(mp->port_num));