netdev - Re: [PATCH net] r8169: don't advertise pause in jumbo mode

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Message-ID: <YHaen5PAzfNcnnOG@kroah.com>
Date:   Wed, 14 Apr 2021 09:49:51 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Heiner Kallweit <hkallweit1@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>,
        Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Roman Mamedov <rm+bko@...anrm.net>
Subject: Re: [PATCH net] r8169: don't advertise pause in jumbo mode

On Wed, Apr 14, 2021 at 09:40:51AM +0200, Heiner Kallweit wrote:
> It has been reported [0] that using pause frames in jumbo mode impacts
> performance. There's no available chip documentation, but vendor
> drivers r8168 and r8125 don't advertise pause in jumbo mode. So let's
> do the same, according to Roman it fixes the issue.
> 
> [0] https://bugzilla.kernel.org/show_bug.cgi?id=212617
> 
> Fixes: 9cf9b84cc701 ("r8169: make use of phy_set_asym_pause")
> Reported-by: Roman Mamedov <rm+bko@...anrm.net>
> Tested-by: Roman Mamedov <rm+bko@...anrm.net>
> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
> ---
> This patch doesn't apply cleanly on some kernel versions, but the needed
> changes are trivial.
> ---
>  drivers/net/ethernet/realtek/r8169_main.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)


<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>