Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-12 07:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

pasemi_mac: pass in count of buffers to replenish rx ring with

Browse Source 
pasemi_mac: pass in count of buffers to replenish rx ring with

Refactor replenish_rx_ring to take an argument for how many entries to
fill. Since it's normally available from where it's called anyway, this
is just simpler. It also removes the awkward logic to try to figure out
if we're filling for the first time or not.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Olof Johansson 2007-09-26 16:25:06 -05:00 committed by David S. Miller
parent 3603376653
commit 928773c23a
1 changed files with 8 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/net/pasemi_mac.c
View File

@ -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;