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-rw-r--r--drivers/net/pasemi_mac.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index 643fce860e5..c2d34a804d4 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -370,23 +370,18 @@ static void pasemi_mac_free_rx_resources(struct net_device *dev)
mac->rx = NULL;
}
-static void pasemi_mac_replenish_rx_ring(struct net_device *dev)
+static void pasemi_mac_replenish_rx_ring(struct net_device *dev, int limit)
{
struct pasemi_mac *mac = netdev_priv(dev);
unsigned int i;
int start = mac->rx->next_to_fill;
- unsigned int limit, count;
-
- limit = RING_AVAIL(mac->rx);
- /* Check to see if we're doing first-time setup */
- if (unlikely(mac->rx->next_to_clean == 0 && mac->rx->next_to_fill == 0))
- limit = RX_RING_SIZE;
+ int count;
if (limit <= 0)
return;
i = start;
- for (count = limit; count; count--) {
+ for (count = 0; count < limit; count++) {
struct pasemi_mac_buffer *info = &RX_DESC_INFO(mac, i);
u64 *buff = &RX_BUFF(mac, i);
struct sk_buff *skb;
@@ -417,10 +412,10 @@ static void pasemi_mac_replenish_rx_ring(struct net_device *dev)
wmb();
- write_dma_reg(mac, PAS_DMA_RXCHAN_INCR(mac->dma_rxch), limit - count);
- write_dma_reg(mac, PAS_DMA_RXINT_INCR(mac->dma_if), limit - count);
+ write_dma_reg(mac, PAS_DMA_RXCHAN_INCR(mac->dma_rxch), count);
+ write_dma_reg(mac, PAS_DMA_RXINT_INCR(mac->dma_if), count);
- mac->rx->next_to_fill += limit - count;
+ mac->rx->next_to_fill += count;
}
static void pasemi_mac_restart_rx_intr(struct pasemi_mac *mac)
@@ -538,7 +533,7 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit)
}
mac->rx->next_to_clean += limit - count;
- pasemi_mac_replenish_rx_ring(mac->netdev);
+ pasemi_mac_replenish_rx_ring(mac->netdev, limit-count);
spin_unlock(&mac->rx->lock);
@@ -825,7 +820,7 @@ static int pasemi_mac_open(struct net_device *dev)
write_dma_reg(mac, PAS_DMA_TXCHAN_TCMDSTA(mac->dma_txch),
PAS_DMA_TXCHAN_TCMDSTA_EN);
- pasemi_mac_replenish_rx_ring(dev);
+ pasemi_mac_replenish_rx_ring(dev, RX_RING_SIZE);
flags = PAS_MAC_CFG_PCFG_S1 | PAS_MAC_CFG_PCFG_PE |
PAS_MAC_CFG_PCFG_PR | PAS_MAC_CFG_PCFG_CE;