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path: root/drivers/net/ethernet/natsemi/sonic.c
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-rw-r--r--drivers/net/ethernet/natsemi/sonic.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/net/ethernet/natsemi/sonic.c b/drivers/net/ethernet/natsemi/sonic.c
index 2cee702f49b8..9d2bddc4951b 100644
--- a/drivers/net/ethernet/natsemi/sonic.c
+++ b/drivers/net/ethernet/natsemi/sonic.c
@@ -434,7 +434,6 @@ static int index_from_addr(struct sonic_local *lp, dma_addr_t addr,
static void sonic_rx(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
- int status;
int entry = lp->cur_rx;
int prev_entry = lp->eol_rx;
@@ -445,9 +444,10 @@ static void sonic_rx(struct net_device *dev)
u16 bufadr_l;
u16 bufadr_h;
int pkt_len;
+ u16 status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
- status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
- if (status & SONIC_RCR_PRX) {
+ /* If the RD has LPKT set, the chip has finished with the RB */
+ if ((status & SONIC_RCR_PRX) && (status & SONIC_RCR_LPKT)) {
u32 addr = (sonic_rda_get(dev, entry,
SONIC_RD_PKTPTR_H) << 16) |
sonic_rda_get(dev, entry, SONIC_RD_PKTPTR_L);
@@ -495,10 +495,6 @@ static void sonic_rx(struct net_device *dev)
bufadr_h = (unsigned long)new_laddr >> 16;
sonic_rra_put(dev, i, SONIC_RR_BUFADR_L, bufadr_l);
sonic_rra_put(dev, i, SONIC_RR_BUFADR_H, bufadr_h);
- } else {
- /* This should only happen, if we enable accepting broken packets. */
- }
- if (status & SONIC_RCR_LPKT) {
/*
* this was the last packet out of the current receive buffer
* give the buffer back to the SONIC
@@ -511,12 +507,11 @@ static void sonic_rx(struct net_device *dev)
__func__);
SONIC_WRITE(SONIC_ISR, SONIC_INT_RBE); /* clear the flag */
}
- } else
- printk(KERN_ERR "%s: rx desc without RCR_LPKT. Shouldn't happen !?\n",
- dev->name);
+ }
/*
* give back the descriptor
*/
+ sonic_rda_put(dev, entry, SONIC_RD_STATUS, 0);
sonic_rda_put(dev, entry, SONIC_RD_IN_USE, 1);
prev_entry = entry;