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[PATCH] powerpc/cell spidernet NAPI polling info. 

This patch moves transmit queue cleanup code out of the
interrupt context, and into the NAPI polling routine.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Linas Vepstas 2006-10-10 16:13:05 -05:00 committed by Jeff Garzik
parent 204e5fa17c
commit 68a8c609b3
1 changed files with 8 additions and 8 deletions
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16
drivers/net/spider_net.c
View File

@ -715,7 +715,7 @@ spider_net_release_tx_descr(struct spider_net_card *card)
len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
pci_unmap_single(card->pdev, descr->buf_addr, len, pci_unmap_single(card->pdev, descr->buf_addr, len,
PCI_DMA_TODEVICE); PCI_DMA_TODEVICE);
dev_kfree_skb_any(skb); dev_kfree_skb(skb);
} }
static void static void
@ -885,9 +885,10 @@ spider_net_xmit(struct sk_buff *skb, struct net_device *netdev)
* spider_net_cleanup_tx_ring - cleans up the TX ring * spider_net_cleanup_tx_ring - cleans up the TX ring
* @card: card structure * @card: card structure
* *
* spider_net_cleanup_tx_ring is called by the tx_timer (as we don't use * spider_net_cleanup_tx_ring is called by either the tx_timer
* interrupts to cleanup our TX ring) and returns sent packets to the stack * or from the NAPI polling routine.
* by freeing them * This routine releases resources associted with transmitted
* packets, including updating the queue tail pointer.
*/ */
static void static void
spider_net_cleanup_tx_ring(struct spider_net_card *card) spider_net_cleanup_tx_ring(struct spider_net_card *card)
@ -1092,6 +1093,7 @@ spider_net_poll(struct net_device *netdev, int *budget)
int packets_to_do, packets_done = 0; int packets_to_do, packets_done = 0;
int no_more_packets = 0; int no_more_packets = 0;
spider_net_cleanup_tx_ring(card);
packets_to_do = min(*budget, netdev->quota); packets_to_do = min(*budget, netdev->quota);
while (packets_to_do) { while (packets_to_do) {
@ -1504,10 +1506,8 @@ spider_net_interrupt(int irq, void *ptr)
spider_net_rx_irq_off(card); spider_net_rx_irq_off(card);
netif_rx_schedule(netdev); netif_rx_schedule(netdev);
} }
if (status_reg & SPIDER_NET_TXINT ) { if (status_reg & SPIDER_NET_TXINT)
spider_net_cleanup_tx_ring(card); netif_rx_schedule(netdev);
netif_wake_queue(netdev);
}
if (status_reg & SPIDER_NET_ERRINT ) if (status_reg & SPIDER_NET_ERRINT )
spider_net_handle_error_irq(card, status_reg); spider_net_handle_error_irq(card, status_reg);