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From: Maciej Fijalkowski <maciejromanfijalkowski@gmail.com>
To: Hayes Wang <hayeswang@realtek.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	nic_swsd <nic_swsd@realtek.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: Re: [PATCH net-next 5/5] r8152: change rx_frag_head_sz and rx_max_agg_num dynamically
Date: Thu, 8 Aug 2019 13:49:59 +0200
Message-ID: <20190808134959.00006a58@gmail.com> (raw)
In-Reply-To: <0835B3720019904CB8F7AA43166CEEB2F18D0D8E@RTITMBSVM03.realtek.com.tw>

On Thu, 8 Aug 2019 08:52:51 +0000
Hayes Wang <hayeswang@realtek.com> wrote:

> Jakub Kicinski [mailto:jakub.kicinski@netronome.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@realtek.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.

Ummm there's set_tunable ops. Amazon's ena driver is making use of it from what
I see. Look at ena_set_tunable() in
drivers/net/ethernet/amazon/ena/ena_ethtool.c.

Maciej

> Do I miss something?
> 
> Best Regards,
> Hayes
> 


  reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-06 11:17 [PATCH net-next 0/5] RX improve Hayes Wang
2019-08-06 11:18 ` [PATCH net-next 1/5] r8152: separate the rx buffer size Hayes Wang
2019-08-06 11:18 ` [PATCH net-next 2/5] r8152: replace array with linking list for rx information Hayes Wang
2019-08-06 19:53   ` Jakub Kicinski
2019-08-06 21:40     ` Jakub Kicinski
2019-08-07  4:34     ` Hayes Wang
2019-08-07 18:21       ` Jakub Kicinski
2019-08-06 11:18 ` [PATCH net-next 3/5] r8152: use alloc_pages for rx buffer Hayes Wang
2019-08-06 11:18 ` [PATCH net-next 4/5] r8152: support skb_add_rx_frag Hayes Wang
2019-08-06 22:08   ` Jakub Kicinski
2019-08-07  4:34     ` Hayes Wang
2019-08-06 11:18 ` [PATCH net-next 5/5] r8152: change rx_frag_head_sz and rx_max_agg_num dynamically Hayes Wang
2019-08-06 22:10   ` Jakub Kicinski
2019-08-07  7:12     ` Hayes Wang
2019-08-07 12:43       ` Maciej Fijalkowski
2019-08-08  1:40         ` Hayes Wang
2019-08-08  8:52     ` Hayes Wang
2019-08-08 11:49       ` Maciej Fijalkowski [this message]
2019-08-08 12:16         ` Hayes Wang
2019-08-08 18:43           ` Jakub Kicinski
2019-08-09  3:38             ` Hayes Wang
2019-08-09  4:51               ` David Miller

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