From dccd547e2bf2c01a13c967ae03a705338394fad6 Mon Sep 17 00:00:00 2001 From: Joe Korty Date: Wed, 29 Oct 2008 14:22:16 -0700 Subject: [PATCH] forcdeth: increase max_interrupt_work This eliminates the following often-generated warning from my 64 bit Opteron SMP test stand: eth0: too many iterations (6) in nv_nic_irq According to the web, the problem is that the forcedeth driver has a too-low value for max_interrupt_work. Grepping the kernel I see that forcedeth has the second lowest value of all ethernet drivers (ie, 6). Most are in the 20-40 range. So this patch increases this a bit, from 6 to 15 (at 15 forcedeth becomes the driver with third-lowest max_interrupt_work value). My test stand, which used to print out the above warnings repetitively whenever it was under heavy net load, no longer does so. Signed-off-by: Joe Korty Cc: Ayaz Abdulla Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/forcedeth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 74c588e..0b12e48 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -818,7 +818,7 @@ struct fe_priv { * Maximum number of loops until we assume that a bit in the irq mask * is stuck. Overridable with module param. */ -static int max_interrupt_work = 5; +static int max_interrupt_work = 15; /* * Optimization can be either throuput mode or cpu mode -- 2.7.4