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Date: Mon, 11 Jun 2007 13:59:21 -0500 From: linas@...tin.ibm.com (Linas Vepstas) To: Jeff Garzik <jeff@...zik.org> Cc: Michael Ellerman <michael@...erman.id.au>, netdev@...r.kernel.org, cbe-oss-dev@...abs.org Subject: [PATCH 11/15] spidernet: service TX later. When entering the netdev poll routine, empty out the RX chain first, before cleaning up the TX chain. This should help avoid RX buffer overflows. Signed-off-by: Linas Vepstas <linas@...tin.ibm.com> ---- drivers/net/spider_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: linux-2.6.22-rc1/drivers/net/spider_net.c =================================================================== --- linux-2.6.22-rc1.orig/drivers/net/spider_net.c 2007-06-11 11:53:21.000000000 -0500 +++ linux-2.6.22-rc1/drivers/net/spider_net.c 2007-06-11 11:53:24.000000000 -0500 @@ -1287,7 +1287,6 @@ spider_net_poll(struct net_device *netde int packets_to_do, packets_done = 0; int no_more_packets = 0; - spider_net_cleanup_tx_ring(card); packets_to_do = min(*budget, netdev->quota); while (packets_to_do) { @@ -1312,6 +1311,8 @@ spider_net_poll(struct net_device *netde spider_net_refill_rx_chain(card); spider_net_enable_rxdmac(card); + spider_net_cleanup_tx_ring(card); + /* if all packets are in the stack, enable interrupts and return 0 */ /* if not, return 1 */ if (no_more_packets) { - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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