From: linas@austin.ibm.com (Linas Vepstas)
To: Jeff Garzik <jgarzik@pobox.com>
Cc: cbe-oss-dev@ozlabs.org, netdev@vger.kernel.org
Subject: [PATCH 11/18] spidernet: increase the NAPI weight
Date: Thu, 7 Jun 2007 14:43:31 -0500 [thread overview]
Message-ID: <20070607194331.GK16077@austin.ibm.com> (raw)
In-Reply-To: <20070607191707.GA7904@austin.ibm.com>
Another way of minimizing the likelyhood of RX ram from overflowing
is to empty out the entire rx ring every chance we get. Change
the crazy watchdog timeout from 50 seconds to 3 seconds, while
we're here.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
drivers/net/spider_net.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
Index: linux-2.6.22-rc1/drivers/net/spider_net.h
===================================================================
--- linux-2.6.22-rc1.orig/drivers/net/spider_net.h 2007-06-07 11:51:47.000000000 -0500
+++ linux-2.6.22-rc1/drivers/net/spider_net.h 2007-06-07 11:52:22.000000000 -0500
@@ -56,8 +56,13 @@ extern char spider_net_driver_name[];
#define SPIDER_NET_RX_CSUM_DEFAULT 1
-#define SPIDER_NET_WATCHDOG_TIMEOUT 50*HZ
-#define SPIDER_NET_NAPI_WEIGHT 64
+#define SPIDER_NET_WATCHDOG_TIMEOUT 3*HZ
+
+/* We really really want to empty the ring buffer every time,
+ * so as to avoid the RX ram full bug. So set te napi wieght
+ * to the ring size.
+ */
+#define SPIDER_NET_NAPI_WEIGHT SPIDER_NET_RX_DESCRIPTORS_DEFAULT
#define SPIDER_NET_FIRMWARE_SEQS 6
#define SPIDER_NET_FIRMWARE_SEQWORDS 1024
next prev parent reply other threads:[~2007-06-07 19:43 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-07 19:17 [PATCH 0/18] spidernet driver bug fixes Linas Vepstas
2007-06-07 19:20 ` [PATCH 1/18] spidernet: skb used after netif_receive_skb Linas Vepstas
2007-06-07 19:22 ` [PATCH 2/18] spidernet: checksum and ethtool Linas Vepstas
2007-06-07 19:24 ` [PATCH 3/18] spidernet: beautify error messages Linas Vepstas
2007-06-07 19:25 ` [PATCH 4/18] spidernet: move a block of code around Linas Vepstas
2007-06-07 19:27 ` [PATCH 5/18] spidernet: zero out a pointer Linas Vepstas
2007-06-07 19:29 ` [PATCH 6/18] spidernet: null out skb pointer after its been used Linas Vepstas
2007-06-07 19:33 ` [PATCH 7/18] spidernet: Don't terminate the RX ring Linas Vepstas
2007-06-07 19:35 ` [PATCH 8/18] spidernet: enhance the dump routine Linas Vepstas
2007-06-07 19:39 ` [PATCH 9/18] spidernet: reset the card when an rxramfull is seen Linas Vepstas
2007-06-07 19:41 ` [PATCH 10/18] spidernet: service TX later Linas Vepstas
2007-06-07 19:43 ` Linas Vepstas [this message]
2007-06-07 19:45 ` [PATCH 12/18] spidernet: don't flag rare packets as bad packets Linas Vepstas
2007-06-07 19:51 ` [PATCH 13/18] spidernet: Cure RX ram full bug Linas Vepstas
2007-06-07 19:53 ` [PATCH 14/18] spidernet: silence the ramfull messages Linas Vepstas
2007-06-07 19:55 ` [PATCH 15/18] spidernet: minor RX optimization Linas Vepstas
2007-06-07 19:57 ` [PATCH 16/18] spidernet: fix misnamed flag Linas Vepstas
2007-06-07 20:01 ` [PATCH 17/18] spidernet: turn off descriptor chain end interrupt Linas Vepstas
2007-06-07 20:05 ` [PATCH 18/18] spidernet: driver docmentation Linas Vepstas
2007-06-08 1:12 ` [Cbe-oss-dev] [PATCH 0/18] spidernet driver bug fixes Michael Ellerman
2007-06-08 17:06 ` Linas Vepstas
2007-06-08 17:20 ` Jeff Garzik
2007-06-11 18:14 ` [PATCH 0/15] " Linas Vepstas
2007-06-11 18:17 ` [PATCH 1/15] spidernet: null out skb pointer after its been used Linas Vepstas
2007-06-11 18:21 ` [PATCH 2/15] spidernet: Cure RX ram full bug Linas Vepstas
2007-06-11 18:23 ` [PATCH 3/15] spidernet: Don't terminate the RX ring Linas Vepstas
2007-06-11 18:26 ` [PATCH 4/15] spidernet: silence the ramfull messages Linas Vepstas
2007-06-13 20:12 ` Jeff Garzik
2007-06-14 22:29 ` Linas Vepstas
2007-06-14 23:12 ` [PATCH] spidernet: Replace literal with const Linas Vepstas
2007-07-02 12:37 ` Jeff Garzik
2007-06-11 18:29 ` [PATCH 5/15] spidernet: turn off descriptor chain end interrupt Linas Vepstas
2007-06-11 18:32 ` [PATCH 6/15] spidernet: skb used after netif_receive_skb Linas Vepstas
2007-06-11 18:35 ` [PATCH 7/15] spidernet: checksum and ethtool Linas Vepstas
2007-06-11 18:41 ` [PATCH 8/15] spidernet: beautify error messages Linas Vepstas
2007-06-13 20:15 ` Jeff Garzik
2007-06-11 18:48 ` [PATCH 9/15] spidernet: enhance the dump routine Linas Vepstas
2007-06-11 18:52 ` [PATCH 10/15] spidernet: invalidate unused pointer Linas Vepstas
2007-06-11 18:59 ` [PATCH 11/15] spidernet: service TX later Linas Vepstas
2007-06-11 19:02 ` [PATCH 12/15] spidernet: increase the NAPI weight Linas Vepstas
2007-06-13 20:14 ` Jeff Garzik
2007-06-13 20:49 ` [Cbe-oss-dev] " Arnd Bergmann
2007-06-14 22:08 ` Linas Vepstas
2007-06-11 19:05 ` [PATCH 13/15] spidernet: move a block of code around Linas Vepstas
2007-06-11 19:09 ` [PATCH 14/15] spidernet: fix misnamed flag Linas Vepstas
2007-06-11 19:12 ` [PATCH 15/15] spidernet: driver docmentation Linas Vepstas
2007-06-13 20:10 ` [PATCH 1/15] spidernet: null out skb pointer after its been used Jeff Garzik
2007-06-14 22:00 ` Linas Vepstas
2007-06-12 2:01 ` [PATCH 0/15] spidernet driver bug fixes Michael Ellerman
2007-06-12 23:00 ` Jeff Garzik
2007-06-12 23:32 ` Linas Vepstas
2007-06-13 0:04 ` Jeff Garzik
2007-06-13 16:14 ` Linas Vepstas
2007-06-13 18:51 ` Jeff Garzik
2007-06-13 19:01 ` [Cbe-oss-dev] " Segher Boessenkool
2007-06-13 19:02 ` Jeff Garzik
2007-06-13 20:52 ` Arnd Bergmann
2007-06-13 23:55 ` Michael Ellerman
2007-06-13 18:52 ` Jeff Garzik
2007-06-14 22:08 ` [Cbe-oss-dev] " David Woodhouse
2007-06-14 23:01 ` Jeff Garzik
2007-06-14 23:03 ` David Woodhouse
2007-06-14 23:04 ` Jeff Garzik
2007-06-14 23:07 ` David Woodhouse
2007-06-14 23:32 ` Michael Ellerman
2007-06-13 1:33 ` Michael Ellerman
2007-06-13 1:54 ` Jeff Garzik
2007-06-13 13:53 ` Michael Ellerman
2007-06-13 18:45 ` Jeff Garzik
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