From: Lino Sanfilippo <lsanfil@marvell.com>
To: David Miller <davem@davemloft.net>
Cc: <eric.dumazet@gmail.com>, <pavel@ucw.cz>,
<peppe.cavallaro@st.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: stmmac ethernet in kernel 4.4: coalescing related pauses?
Date: Mon, 28 Nov 2016 18:01:10 +0100 [thread overview]
Message-ID: <279bb203-486f-7086-e232-ed3e1cb0af2f@marvell.com> (raw)
In-Reply-To: <20161128.113031.964579744326063048.davem@davemloft.net>
On 28.11.2016 17:30, David Miller wrote:
> From: Lino Sanfilippo <lsanfil@marvell.com>
> Date: Mon, 28 Nov 2016 16:57:35 +0100
>
>> I wonder if the best fix would be indeed to deactivate irq coalescing
>> completely.
>> Does it make any sense at all to use it if a driver uses NAPI already?
>
> It absolutely does make sense, when it is implemented and functions
> properly.
>
Interesting. I always thought both (NAPI and irq coalescing) are essentially doing the same thing only
one time in software and one time with hw support. Did I misunderstand NAPI?
Regards,
Lino
next prev parent reply other threads:[~2016-11-28 17:01 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-23 10:51 Pavel Machek
2016-11-24 8:55 ` stmmac ethernet in kernel 4.9-rc6: coalescing related pauses Pavel Machek
2016-11-24 10:29 ` Pavel Machek
2016-11-24 10:36 ` Pavel Machek
2016-11-24 10:46 ` [PATCH] stmmac ethernet: unify locking Pavel Machek
2016-11-24 11:05 ` [PATCH] stmmac ethernet: remove cut & paste code Pavel Machek
2016-11-24 20:05 ` Joe Perches
2016-11-24 21:44 ` Pavel Machek
2016-11-24 22:27 ` Joe Perches
2016-11-28 11:50 ` Pavel Machek
2016-11-28 14:24 ` Joe Perches
2016-11-28 14:35 ` Pavel Machek
2016-11-28 16:03 ` Joe Perches
2016-11-24 16:04 ` stmmac ethernet in kernel 4.9-rc6: coalescing related pauses David Miller
2016-11-24 21:25 ` Pavel Machek
2016-12-02 8:24 ` Giuseppe CAVALLARO
2016-12-02 8:41 ` Giuseppe CAVALLARO
2016-12-02 8:45 ` Pavel Machek
2016-12-02 9:43 ` Giuseppe CAVALLARO
2016-12-02 12:32 ` Pavel Machek
2016-12-02 13:51 ` Giuseppe CAVALLARO
2016-12-02 14:26 ` Alexandre Torgue
2016-12-02 15:19 ` Giuseppe CAVALLARO
2016-12-05 12:14 ` Pavel Machek
2016-12-05 12:01 ` Pavel Machek
2016-12-05 10:15 ` Pavel Machek
2016-12-05 11:40 ` Lino Sanfilippo
2016-12-05 22:02 ` Pavel Machek
2016-12-05 22:37 ` Lino Sanfilippo
2016-12-05 22:40 ` Pavel Machek
2016-12-05 22:54 ` Lino Sanfilippo
2016-12-05 23:11 ` Lino Sanfilippo
2016-12-02 14:05 ` Aw: " Lino Sanfilippo
2016-12-07 12:31 ` [RFC] " Pavel Machek
2016-12-07 13:18 ` Lino Sanfilippo
2016-12-05 11:56 ` Pavel Machek
2016-11-28 11:55 ` [PATCH] stmmac: fix comments, make debug output consistent Pavel Machek
2016-11-30 0:53 ` David Miller
2016-11-28 12:13 ` stmmac ethernet in kernel 4.9-rc6: coalescing related pauses Pavel Machek
2016-11-28 12:17 ` [PATCH] stmmac: reduce code duplication getting basic descriptors Pavel Machek
2016-11-28 15:25 ` kbuild test robot
2016-12-02 14:09 ` Alexandre Torgue
2016-11-30 11:44 ` [PATCH] stmmac: simplify flag assignment Pavel Machek
2016-12-01 20:23 ` David Miller
2016-12-01 22:48 ` stmmac: turn coalescing / NAPI off in stmmac Pavel Machek
2016-12-02 8:39 ` Giuseppe CAVALLARO
2016-12-02 10:42 ` Pavel Machek
2016-12-02 15:31 ` Giuseppe CAVALLARO
2016-12-05 11:45 ` Pavel Machek
2016-12-02 8:27 ` [PATCH] stmmac: simplify flag assignment Giuseppe CAVALLARO
2016-12-01 10:32 ` [PATCH] stmmac: cleanup documenation, make it match reality Pavel Machek
2016-12-03 20:07 ` David Miller
2016-12-05 12:27 ` [PATCH] stmmac: disable tx coalescing Pavel Machek
2016-12-11 19:07 ` Pavel Machek
2016-12-11 19:31 ` David Miller
2016-12-11 19:57 ` Pavel Machek
2016-11-28 13:07 ` stmmac ethernet in kernel 4.4: coalescing related pauses? Lino Sanfilippo
2016-11-28 14:54 ` David Miller
2016-11-28 15:31 ` Eric Dumazet
2016-11-28 15:57 ` Lino Sanfilippo
2016-11-28 16:30 ` David Miller
2016-11-28 17:01 ` Lino Sanfilippo [this message]
2016-11-30 10:28 ` Pavel Machek
2016-11-28 15:33 ` Lino Sanfilippo
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