linux-kernel - RE: [PATCH net-next 5/5] r8152: change rx_frag_head_sz and rx_max_agg

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Date:   Thu, 8 Aug 2019 08:52:51 +0000
From:   Hayes Wang <hayeswang@...ltek.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        nic_swsd <nic_swsd@...ltek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: [PATCH net-next 5/5] r8152: change rx_frag_head_sz and rx_max_agg_num dynamically

Jakub Kicinski [mailto:jakub.kicinski@...ronome.com]
> Sent: Wednesday, August 07, 2019 6:10 AM
[...]
> On Tue, 6 Aug 2019 19:18:04 +0800, Hayes Wang wrote:
> > Let rx_frag_head_sz and rx_max_agg_num could be modified dynamically
> > through the sysfs.
> >
> > Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
> 
> Please don't expose those via sysfs. Ethtool's copybreak and descriptor
> count should be applicable here, I think.

Excuse me again.
I find the kernel supports the copybreak of Ethtool.
However, I couldn't find a command of Ethtool to use it.
Do I miss something?

Best Regards,
Hayes