Re: [RFC][PATCH] LAN9211 and LAN9221 NFS mounting and overrun fix on omap LDP

Umm, I think you want to send this to Dustin McIntire rather than
Nicolas (if Dustin's email address still works):

/*
 * smc911x.c
 * This is a driver for SMSC's LAN911{5,6,7,8} single-chip Ethernet devices.
 *
 * Copyright (C) 2005 Sensoria Corp
 *         Derived from the unified SMC91x driver by Nicolas Pitre
 *         and the smsc911x.c reference driver by SMSC
...
 * History:
 *        04/16/05      Dustin McIntire          Initial version
 */
static const char version[] =
         "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <[email protected]>\n";

Added to CC.


On Wed, Mar 25, 2009 at 12:38:36PM -0400, Subramani Venkatesh wrote:
> Hi,
> I need your comment on the patch I generated on 2.6.27 Linux ARM for omap LDP.
> With this patch we are able to mount the NFS even with heavy traffic
> like ping -f option, without which NFS retrying and hangs.
> I am not sure whether this problem is fixed with the new the kernel, I
> need your comments whether we can intergrate with the kernel or not.
> 
> >From 9bd50055785492f52877fc719ec5ad02dd183a99 Mon Sep 17 00:00:00 2001
> From: Subramani Venkatesh <[email protected]>
> Date: Wed, 25 Mar 2009 12:23:45 -0400
> Subject: [PATCH] LAN9211 NFS bootup fix
>  This patch fixs the problem of Mounting NFS file system, when there
> is too much traffic on the Network.
>  We still face the Overrun issues, but we still have NFS working.
> 
> NFS mounting issue is found on Omap LDP target boards.
> 
> Signed-off-by: Subramani Venkatesh <[email protected]>
> ---
>  drivers/net/smc911x.c |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
> index 7aa8c49..f3343ae 100644
> --- a/drivers/net/smc911x.c
> +++ b/drivers/net/smc911x.c
> @@ -1111,6 +1111,12 @@ static irqreturn_t smc911x_interrupt(int irq,
> void *dev_id)
>                                 smc911x_rcv(dev);
>                         }
>                         SMC_ACK_INT(lp, INT_STS_RSFL_);
> +                       if (rx_overrun) {
> +                               DBG(SMC_DEBUG_RX, "%s: RX Enable\n", dev->name);
> +                               SMC_GET_MAC_CR(lp, cr);
> +                               SMC_SET_MAC_CR(lp, cr|MAC_CR_RXEN_);
> +                       }
> +
>                 }
>                 /* Handle transmit FIFO available */
>                 if (status & INT_STS_TDFA_) {
> --
> 1.5.4.3
> 
> Regards,
> Subbu
> 
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