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pasemi_mac: pass in count of buffers to replenish rx ring with
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>
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@ -370,23 +370,18 @@ static void pasemi_mac_free_rx_resources(struct net_device *dev)
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mac->rx = NULL;
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}
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static void pasemi_mac_replenish_rx_ring(struct net_device *dev)
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static void pasemi_mac_replenish_rx_ring(struct net_device *dev, int limit)
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{
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struct pasemi_mac *mac = netdev_priv(dev);
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unsigned int i;
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int start = mac->rx->next_to_fill;
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unsigned int limit, count;
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limit = RING_AVAIL(mac->rx);
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/* Check to see if we're doing first-time setup */
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if (unlikely(mac->rx->next_to_clean == 0 && mac->rx->next_to_fill == 0))
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limit = RX_RING_SIZE;
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int count;
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if (limit <= 0)
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return;
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i = start;
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for (count = limit; count; count--) {
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for (count = 0; count < limit; count++) {
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struct pasemi_mac_buffer *info = &RX_DESC_INFO(mac, i);
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u64 *buff = &RX_BUFF(mac, i);
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struct sk_buff *skb;
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@ -417,10 +412,10 @@ static void pasemi_mac_replenish_rx_ring(struct net_device *dev)
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wmb();
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write_dma_reg(mac, PAS_DMA_RXCHAN_INCR(mac->dma_rxch), limit - count);
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write_dma_reg(mac, PAS_DMA_RXINT_INCR(mac->dma_if), limit - count);
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write_dma_reg(mac, PAS_DMA_RXCHAN_INCR(mac->dma_rxch), count);
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write_dma_reg(mac, PAS_DMA_RXINT_INCR(mac->dma_if), count);
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mac->rx->next_to_fill += limit - count;
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mac->rx->next_to_fill += count;
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}
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static void pasemi_mac_restart_rx_intr(struct pasemi_mac *mac)
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@ -538,7 +533,7 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit)
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}
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mac->rx->next_to_clean += limit - count;
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pasemi_mac_replenish_rx_ring(mac->netdev);
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pasemi_mac_replenish_rx_ring(mac->netdev, limit-count);
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spin_unlock(&mac->rx->lock);
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@ -825,7 +820,7 @@ static int pasemi_mac_open(struct net_device *dev)
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write_dma_reg(mac, PAS_DMA_TXCHAN_TCMDSTA(mac->dma_txch),
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PAS_DMA_TXCHAN_TCMDSTA_EN);
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pasemi_mac_replenish_rx_ring(dev);
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pasemi_mac_replenish_rx_ring(dev, RX_RING_SIZE);
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flags = PAS_MAC_CFG_PCFG_S1 | PAS_MAC_CFG_PCFG_PE |
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PAS_MAC_CFG_PCFG_PR | PAS_MAC_CFG_PCFG_CE;
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