From ea5d9f5f72e1b687064389cba63bc7e61cc450ea Mon Sep 17 00:00:00 2001 From: Jo-Philipp Wich Date: Thu, 24 Aug 2017 00:17:56 +0200 Subject: [PATCH] kernel: tune e1000e module parameters The default e1000e parameters (interrupt throttling rate, MSI/MSI-X mode) are optimized for desktop and server computers to optimize user-space execution (i.e. what's typically referred to as "useful" work). This assumption breaks on a router under load where most of the "useful" work actually takes place either in hardware interrupt handlers (IRQ) or at software IRQ (swirq) modes, so we try to reflect that by overriding these parameters with more appropriate values. Patch-by: Philip Prindeville Signed-off-by: Jo-Philipp Wich --- package/kernel/linux/modules/netdevices.mk | 3 +++ 1 file changed, 3 insertions(+) diff --git a/package/kernel/linux/modules/netdevices.mk b/package/kernel/linux/modules/netdevices.mk index 3add0fdb50..564f005b8b 100644 --- a/package/kernel/linux/modules/netdevices.mk +++ b/package/kernel/linux/modules/netdevices.mk @@ -488,6 +488,9 @@ define KernelPackage/e1000e KCONFIG:=CONFIG_E1000E FILES:=$(LINUX_DIR)/drivers/net/ethernet/intel/e1000e/e1000e.ko AUTOLOAD:=$(call AutoProbe,e1000e) + MODPARAMS.e1000e:= \ + IntMode=1 \ + InterruptThrottleRate=4,4,4,4,4,4,4,4 endef define KernelPackage/e1000e/description