From: linas@austin.ibm.com (Linas Vepstas)
To: Jeff Garzik <jgarzik@pobox.com>, Andrew Morton <akpm@osdl.org>
Cc: netdev@vger.kernel.org, Florin Malita <fmalita@gmail.com>,
cbe-oss-dev@ozlabs.org, linuxppc-dev@ozlabs.org
Subject: [PATCH 9/10] spidernet: service TX later.
Date: Tue, 22 May 2007 18:47:25 -0500 [thread overview]
Message-ID: <20070522234725.GH2147@austin.ibm.com> (raw)
In-Reply-To: <20070522230942.GT5921@austin.ibm.com>
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@austin.ibm.com>
----
drivers/net/spider_net.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: netdev-2.6/drivers/net/spider_net.c
===================================================================
--- netdev-2.6.orig/drivers/net/spider_net.c 2007-05-22 18:03:39.000000000 -0500
+++ netdev-2.6/drivers/net/spider_net.c 2007-05-22 18:03:41.000000000 -0500
@@ -1212,7 +1212,6 @@ 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) {
@@ -1231,6 +1230,8 @@ 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) {
WARNING: multiple messages have this Message-ID (diff)
From: linas@austin.ibm.com (Linas Vepstas)
To: Jeff Garzik <jgarzik@pobox.com>, Andrew Morton <akpm@osdl.org>
Cc: cbe-oss-dev@ozlabs.org, netdev@vger.kernel.org,
linuxppc-dev@ozlabs.org, Florin Malita <fmalita@gmail.com>
Subject: [PATCH 9/10] spidernet: service TX later.
Date: Tue, 22 May 2007 18:47:25 -0500 [thread overview]
Message-ID: <20070522234725.GH2147@austin.ibm.com> (raw)
In-Reply-To: <20070522230942.GT5921@austin.ibm.com>
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@austin.ibm.com>
----
drivers/net/spider_net.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: netdev-2.6/drivers/net/spider_net.c
===================================================================
--- netdev-2.6.orig/drivers/net/spider_net.c 2007-05-22 18:03:39.000000000 -0500
+++ netdev-2.6/drivers/net/spider_net.c 2007-05-22 18:03:41.000000000 -0500
@@ -1212,7 +1212,6 @@ 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) {
@@ -1231,6 +1230,8 @@ 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) {
next prev parent reply other threads:[~2007-05-22 23:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-22 23:09 [PATCH 1/10] spidernet: skb used after netif_receive_skb Linas Vepstas
2007-05-22 23:09 ` Linas Vepstas
2007-05-22 23:13 ` [PATCH 2/10] spidernet: beautify error messages Linas Vepstas
2007-05-22 23:13 ` Linas Vepstas
2007-05-24 21:27 ` Jeff Garzik
2007-05-24 21:27 ` Jeff Garzik
2007-05-22 23:21 ` [PATCH 3/10] spidernet: move a block of code around Linas Vepstas
2007-05-22 23:21 ` Linas Vepstas
2007-05-22 23:36 ` [PATCH 4/10] spidernet: zero out a pointer Linas Vepstas
2007-05-22 23:36 ` Linas Vepstas
2007-05-22 23:39 ` [PATCH 5/10] spidernet: null out skb pointer after its been used Linas Vepstas
2007-05-22 23:39 ` Linas Vepstas
2007-05-22 23:40 ` [PATCH 6/10] spidernet: Don't terminate the RX ring Linas Vepstas
2007-05-22 23:40 ` Linas Vepstas
2007-05-22 23:42 ` [PATCH 7/10] spidernet: enhance the dump routine Linas Vepstas
2007-05-22 23:42 ` Linas Vepstas
2007-05-22 23:45 ` [PATCH 8/10] spidernet: reset the card when an rxramfull is seen Linas Vepstas
2007-05-22 23:45 ` Linas Vepstas
2007-05-22 23:47 ` Linas Vepstas [this message]
2007-05-22 23:47 ` [PATCH 9/10] spidernet: service TX later Linas Vepstas
2007-05-22 23:52 ` [PATCH 10/10] spidernet: increase the NAPI weight Linas Vepstas
2007-05-22 23:52 ` Linas Vepstas
2007-05-24 21:25 ` [PATCH 1/10] spidernet: skb used after netif_receive_skb Jeff Garzik
2007-05-24 21:25 ` Jeff Garzik
-- strict thread matches above, loose matches on Subject: below --
2007-05-16 21:56 [PATCH 0/10] spidernet assorted fixes Linas Vepstas
2007-05-16 22:21 ` [PATCH 9/10] spidernet: service TX later Linas Vepstas
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