netdev - Re: [PATCH v1] e1000e: honor pause autoneg flag

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Date:	Wed, 16 Jul 2014 02:23:46 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	David Decotigny <decot@...glers.com>
Cc:	Bruce Allan <bruce.w.allan@...el.com>,
	Linux NICS <linux.nics@...el.com>,
	e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] e1000e: honor pause autoneg flag

On Tue, 2014-07-15 at 15:09 -0700, David Decotigny wrote:
> Before:
>   ifup eth0
>   ethtool -A eth0 autoneg off rx on
>   ethtool -a eth0  # rx on, as expected
>   ifconfig eth0 up
>   sleep 5
>   ethtool -a eth0  # rx off, not expected
> 
> After:
>   rx on with iface up, as expected
> 
> Signed-off-by: David Decotigny <decot@...glers.com>
> ---
>  drivers/net/ethernet/intel/e1000e/mac.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)

Thanks David, I will add your patch to my queue.

> 
> diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
> index 8c386f3a..ef014ae 100644
> --- a/drivers/net/ethernet/intel/e1000e/mac.c
> +++ b/drivers/net/ethernet/intel/e1000e/mac.c
> @@ -1048,7 +1048,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
>  	 * has completed, and if so, how the PHY and link partner has
>  	 * flow control configured.
>  	 */
> -	if ((hw->phy.media_type == e1000_media_type_copper) && mac->autoneg) {
> +	if ((hw->phy.media_type == e1000_media_type_copper) && mac->autoneg &&
> +	    hw->adapter->fc_autoneg) {
>  		/* Read the MII Status Register and check to see if AutoNeg
>  		 * has completed.  We read this twice because this reg has
>  		 * some "sticky" (latched) bits.
> @@ -1191,7 +1192,7 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
>  	 * flow control configured.
>  	 */
>  	if ((hw->phy.media_type == e1000_media_type_internal_serdes) &&
> -	    mac->autoneg) {
> +	    mac->autoneg && hw->adapter->fc_autoneg) {
>  		/* Read the PCS_LSTS and check to see if AutoNeg
>  		 * has completed.
>  		 */



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