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From: pranjas@gmail.com (Pranay Srivastava)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Regarding skb and skb_frags
Date: Thu, 1 May 2014 19:39:48 +0530	[thread overview]
Message-ID: <CA+aCy1GsXFzg=BJMdyXyr7DX5aFccQWpkZoxkv+XTZKwaWc8dQ@mail.gmail.com> (raw)
In-Reply-To: <30835.1398952794@turing-police.cc.vt.edu>

On Thu, May 1, 2014 at 7:29 PM,  <Valdis.Kletnieks@vt.edu> wrote:
> On Thu, 01 May 2014 16:12:43 +0530, Pranay Srivastava said:
>
>> My question is that an Ethernet frame won't be bigger than 1500 bytes
>> [correct?]
>
> Incorrect.  10G and faster ethernet support jumbograms.  We run our HPC 10G
> network with an MTU of 9000 (which is 2 pages and a bit more).
>
Ok. So in any case the driver won't poke past ethernet header to look
for the size [Correct?].
So it means only when MTU is bigger than page size would there be a
possibility of skb_frags [Correct?].
>

Thanks

-- 
        ---P.K.S

  reply	other threads:[~2014-05-01 14:09 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-01 10:42 Regarding skb and skb_frags Pranay Srivastava
2014-05-01 13:59 ` Valdis.Kletnieks at vt.edu
2014-05-01 14:09   ` Pranay Srivastava [this message]
2014-05-01 16:20     ` Jeff Haran
2014-05-02  3:16       ` Pranay Srivastava
2014-05-02 16:21         ` Jeff Haran
2014-05-13  3:04 ` Li Wei

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