On Tue, Oct 02, 2018 at 10:26:42AM +0100, Ben Dooks wrote: > Add a configuration option for the default state of turbo mode > on the smsc95xx networking driver. Some systems it is better > to default this to off as it causes significant increases in > soft-irq load. > > Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> > --- > drivers/net/usb/Kconfig | 9 +++++++++ > drivers/net/usb/smsc95xx.c | 2 +- > 2 files changed, 10 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig > index 418b0904cecb..a32f1a446ce9 100644 > --- a/drivers/net/usb/Kconfig > +++ b/drivers/net/usb/Kconfig > @@ -351,6 +351,15 @@ config USB_NET_SMSC95XX > This option adds support for SMSC LAN95XX based USB 2.0 > 10/100 Ethernet adapters. > > +config USB_NET_SMSC95XX_TURBO > + bool "Use turbo receive mode by default" > + depends on USB_NET_SMSC95XX > + default y > + help > + This options sets the default turbo mode settings for the > + driver's receive path. These can also be altered by the > + turbo_mode module parameter. > + Hi Ben Is it worth adding a comment here why you would want to turn it off? To reduce soft-irq load? Thanks Andrew
