From: David Miller <davem@davemloft.net>
To: clabbe.montjoie@gmail.com
Cc: peppe.cavallaro@st.com, alexandre.torgue@st.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 13/17] net: stmmac: Implement NAPI for TX
Date: Fri, 03 Feb 2017 10:15:30 -0500 (EST) [thread overview]
Message-ID: <20170203.101530.2022314159293725201.davem@davemloft.net> (raw)
In-Reply-To: <20170203134145.GB3653@Red>
From: Corentin Labbe <clabbe.montjoie@gmail.com>
Date: Fri, 3 Feb 2017 14:41:45 +0100
> On Tue, Jan 31, 2017 at 11:12:25PM -0500, David Miller wrote:
>> From: Corentin Labbe <clabbe.montjoie@gmail.com>
>> Date: Tue, 31 Jan 2017 10:11:48 +0100
>>
>> > The stmmac driver run TX completion under NAPI but without checking
>> > the work done by the TX completion function.
>>
>> The current behavior is correct and completely intentional.
>>
>> A driver should _never_ account TX work to the NAPI poll budget.
>>
>> This is because TX liberation is orders of magnitude cheaper than
>> receiving a packet, and such SKB freeing makes more SKBs available
>> for RX processing.
>>
>> Therefore, TX work should never count against the NAPI budget.
>>
>> Please do not fix something which is not broken.
>
> So at least the documentation I read must be fixed (https://wiki.linuxfoundation.org/networking/napi)
We have no control over nor care about what the Linux Foundation writes
about the Linux networking code.
Complain to them and please do not bother us about it.
Thank you.
next prev parent reply other threads:[~2017-02-03 15:15 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-31 9:11 [PATCH 00/17] net: stmmac: misc fix Corentin Labbe
2017-01-31 9:11 ` [PATCH 01/17] net: stmmac: fix the typo on MAC_RNABLE_RX Corentin Labbe
2017-01-31 10:03 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 02/17] net: stmmac: Remove the bus_setup function pointer Corentin Labbe
2017-01-31 10:02 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 03/17] net: stmmac: fix some typos in comments Corentin Labbe
2017-01-31 10:03 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 04/17] net: stmmac: remove freesoftware address Corentin Labbe
2017-01-31 9:11 ` [PATCH 05/17] net: stmmac: remplace asm/io.h by linux/io.h Corentin Labbe
2017-01-31 9:11 ` [PATCH 06/17] net: stmmac: fix some code style problem Corentin Labbe
2017-01-31 10:05 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 07/17] net: stmmac: replace stmmac_mdio_busy_wait by readl_poll_timeout Corentin Labbe
2017-01-31 10:13 ` Giuseppe CAVALLARO
2017-01-31 10:39 ` Corentin Labbe
2017-01-31 10:44 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 08/17] net: stmmac: Use readl_poll_timeout Corentin Labbe
2017-01-31 9:11 ` [PATCH 09/17] net: stmmac: replace ENOSYS by EINVAL Corentin Labbe
2017-01-31 10:06 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 10/17] net: stmmac: Correct the error message about invalid speed Corentin Labbe
2017-01-31 10:07 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 11/17] net: stmmac: Rewrite two test against NULL value Corentin Labbe
2017-01-31 10:07 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 12/17] net: stmmac: rename rx_crc to rx_crc_errors Corentin Labbe
2017-01-31 10:08 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 13/17] net: stmmac: Implement NAPI for TX Corentin Labbe
2017-01-31 10:28 ` Giuseppe CAVALLARO
2017-01-31 13:38 ` Corentin Labbe
2017-02-01 4:12 ` David Miller
2017-02-03 13:41 ` Corentin Labbe
2017-02-03 15:15 ` David Miller [this message]
2017-02-03 15:58 ` Corentin Labbe
2017-01-31 9:11 ` [PATCH 14/17] net: stmmac: print phy information Corentin Labbe
2017-01-31 10:10 ` Giuseppe CAVALLARO
2017-02-03 13:16 ` Corentin Labbe
2017-01-31 9:11 ` [PATCH 15/17] net: stmmac: remove dead code in stmmac_tx_clean Corentin Labbe
2017-01-31 10:21 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 16/17] net: stmmac: remove unused variable in sysfs_display_ring Corentin Labbe
2017-01-31 10:11 ` Giuseppe CAVALLARO
2017-01-31 9:11 ` [PATCH 17/17] net: stmmac: replace unsigned by u32 Corentin Labbe
2017-01-31 10:12 ` Giuseppe CAVALLARO
2017-01-31 10:00 ` [PATCH 00/17] net: stmmac: misc fix Giuseppe CAVALLARO
2017-01-31 10:23 ` Joao Pinto
2017-01-31 10:33 ` Giuseppe CAVALLARO
2017-01-31 10:37 ` Joao Pinto
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