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From: Jonas Jensen <jonas.jensen@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>, davem <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"Michał Mirosław" <mirqus@gmail.com>
Subject: Re: [PATCH v5 1/2] net: moxa: clear TX descriptor length bits
Date: Mon, 25 Aug 2014 16:23:35 +0200	[thread overview]
Message-ID: <CACmBeS30_NUot6=FK3xNVDxfN+CPXNfNhEBcO4OPAOQ3Q9zQzw@mail.gmail.com> (raw)
In-Reply-To: <1408554610.5604.11.camel@edumazet-glaptop2.roam.corp.google.com>

Thanks for giving feedback.

On 20 August 2014 19:10, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> Wouldnt it be faster to not use readl() at all here ?

On 22 August 2014 06:39, David Miller <davem@davemloft.net> wrote:
> Like others I wonder why the existing descriptor value is being read
> at all.

It makes sense and I have verified, transfers continue to work
clearing the whole thing, see update in v6.


Regards,

   Jonas

WARNING: multiple messages have this Message-ID (diff)
From: jonas.jensen@gmail.com (Jonas Jensen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 1/2] net: moxa: clear TX descriptor length bits
Date: Mon, 25 Aug 2014 16:23:35 +0200	[thread overview]
Message-ID: <CACmBeS30_NUot6=FK3xNVDxfN+CPXNfNhEBcO4OPAOQ3Q9zQzw@mail.gmail.com> (raw)
In-Reply-To: <1408554610.5604.11.camel@edumazet-glaptop2.roam.corp.google.com>

Thanks for giving feedback.

On 20 August 2014 19:10, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> Wouldnt it be faster to not use readl() at all here ?

On 22 August 2014 06:39, David Miller <davem@davemloft.net> wrote:
> Like others I wonder why the existing descriptor value is being read
> at all.

It makes sense and I have verified, transfers continue to work
clearing the whole thing, see update in v6.


Regards,

   Jonas

  reply	other threads:[~2014-08-25 14:23 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-19 14:49 [PATCH v4 1/2] net: moxa: clear TX descriptor length bits Jonas Jensen
2014-08-19 14:49 ` Jonas Jensen
2014-08-19 14:49 ` [PATCH v4 2/2] net: moxa: replace build_skb() with netdev_alloc_skb_ip_align() / memcpy() Jonas Jensen
2014-08-19 14:49   ` Jonas Jensen
2014-08-19 18:31   ` Eric Dumazet
2014-08-19 18:31     ` Eric Dumazet
2014-08-20 14:24     ` Jonas Jensen
2014-08-20 14:24       ` Jonas Jensen
2014-08-20 14:24       ` Jonas Jensen
2014-08-20 14:19   ` [PATCH v5 " Jonas Jensen
2014-08-20 14:19     ` Jonas Jensen
2014-08-25 14:22     ` [PATCH v6 2/4] " Jonas Jensen
2014-08-25 14:22       ` Jonas Jensen
2014-08-26  0:26       ` David Miller
2014-08-26  0:26         ` David Miller
2014-08-26  9:04       ` Arnd Bergmann
2014-08-26  9:04         ` Arnd Bergmann
2014-08-26  9:10         ` David Laight
2014-08-26  9:10           ` David Laight
2014-08-26  9:10           ` David Laight
2014-08-26 10:55           ` Eric Dumazet
2014-08-26 10:55             ` Eric Dumazet
2014-08-26 10:55             ` Eric Dumazet
2014-08-21 21:43   ` [PATCH v4 2/2] " Michał Mirosław
2014-08-21 21:43     ` Michał Mirosław
2014-08-21 21:43     ` Michał Mirosław
2014-08-25 14:23     ` Jonas Jensen
2014-08-25 14:23       ` Jonas Jensen
2014-08-25 14:23       ` Jonas Jensen
2014-08-20 14:18 ` [PATCH v5 1/2] net: moxa: clear TX descriptor length bits Jonas Jensen
2014-08-20 14:18   ` Jonas Jensen
2014-08-20 17:10   ` Eric Dumazet
2014-08-20 17:10     ` Eric Dumazet
2014-08-25 14:23     ` Jonas Jensen [this message]
2014-08-25 14:23       ` Jonas Jensen
2014-08-22  4:39   ` David Miller
2014-08-22  4:39     ` David Miller
2014-08-25 14:22   ` [PATCH v6 1/4] net: moxa: clear DESC1 on ndo_start_xmit() Jonas Jensen
2014-08-25 14:22     ` Jonas Jensen
2014-08-26  0:25     ` David Miller
2014-08-26  0:25       ` David Miller

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