From: David Miller <davem@davemloft.net>
To: fan.du@intel.com
Cc: netdev@vger.kernel.org, fw@strlen.de
Subject: Re: [PATCH net] gso: do GSO for local skb with size bigger than MTU
Date: Tue, 02 Dec 2014 20:35:11 -0800 (PST) [thread overview]
Message-ID: <20141202.203511.1346917579566370675.davem@davemloft.net> (raw)
In-Reply-To: <5A90DA2E42F8AE43BC4A093BF0678848DEE09A@SHSMSX104.ccr.corp.intel.com>
From: "Du, Fan" <fan.du@intel.com>
Date: Wed, 3 Dec 2014 03:32:46 +0000
>>If guest sees a 1500 byte MTU, that's it's link layer MTU and it had better be able to
>>send 1500 byte packets onto the "wire".
>
> This patch makes it happens exactly as you putted.
>
>>If you cannot properly propagate the vxlan encapsulation overhead back into the
>>guest's MTU you must hide this problem from the rest of our stack somehow.
>
> Again, this patch hide this problem to make Guest feel it can send packet with MTU as 1500 bytes.
I said make the guest see the real MTU, not hide the real MTU by
fragmenting or spitting ICMP PMTU messages back.
next prev parent reply other threads:[~2014-12-03 4:30 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-28 6:33 [PATCH net] gso: do GSO for local skb with size bigger than MTU Fan Du
2014-11-28 7:02 ` Jason Wang
2014-11-30 10:08 ` Du, Fan
2014-12-01 13:52 ` Thomas Graf
[not found] ` <20141201135225.GA16814-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2014-12-01 15:06 ` Michael S. Tsirkin
2014-12-02 15:48 ` Flavio Leitner
2014-12-02 17:09 ` Thomas Graf
[not found] ` <20141202170927.GA9457-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2014-12-02 17:34 ` Michael S. Tsirkin
2014-12-02 17:41 ` Thomas Graf
2014-12-02 18:12 ` Jesse Gross
[not found] ` <CAEP_g=-86Z6pxNow-wjnbx_v9er_TSn6x5waigqVqYHa7tEQJw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-12-03 9:03 ` Michael S. Tsirkin
2014-12-03 18:07 ` Jesse Gross
[not found] ` <CAEP_g=9C+D3gbjJ4n1t6xuyjqEAMYi4ZfqPoe92UAoQJH-UsKg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-12-03 18:38 ` Michael S. Tsirkin
2014-12-03 18:56 ` Rick Jones
[not found] ` <547F5CC2.8000908-VXdhtT5mjnY@public.gmane.org>
2014-12-04 10:17 ` Michael S. Tsirkin
2014-12-03 19:38 ` Jesse Gross
2014-12-03 22:02 ` Thomas Graf
[not found] ` <20141203220244.GA8822-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2014-12-03 22:50 ` Michael S. Tsirkin
2014-12-03 22:51 ` Jesse Gross
2014-12-03 23:05 ` Thomas Graf
[not found] ` <20141203230551.GC8822-FZi0V3Vbi30CUdFEqe4BF2D2FQJk+8+b@public.gmane.org>
2014-12-04 0:54 ` Jesse Gross
2014-12-04 1:15 ` Thomas Graf
2014-12-04 1:51 ` Jesse Gross
2014-12-04 9:26 ` Thomas Graf
2014-12-04 23:19 ` Jesse Gross
2014-12-04 7:48 ` Du Fan
2014-12-04 23:23 ` Jesse Gross
2014-12-05 0:25 ` Du Fan
2014-12-03 2:31 ` Du, Fan
2015-01-05 6:02 ` Fan Du
[not found] ` <54AA2912.6090903-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-01-05 17:58 ` Jesse Gross
2015-01-06 9:34 ` Fan Du
2015-01-06 19:11 ` Jesse Gross
[not found] ` <CAEP_g=8bCR=PeSoi09jLWLtNUrxhzx45h1Wm=9D=R57AqUac2w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-01-07 5:58 ` Fan Du
2015-01-07 20:52 ` Jesse Gross
[not found] ` <CAEP_g=8EBeQUFkRRsG3sznYryd+LE9qJKWQXfS==HG2HDO=UKA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-01-08 9:39 ` Fan Du
2015-01-08 19:55 ` Jesse Gross
[not found] ` <CAEP_g=9hh+MG7AWEnct7CwRqp=ZghpbkDeQ5BhGQktDgMST1jA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-01-09 5:42 ` Fan Du
2015-01-12 18:48 ` Jesse Gross
2015-01-09 5:48 ` Fan Du
2015-01-12 18:55 ` Jesse Gross
2015-01-13 16:58 ` Thomas Graf
2014-12-02 15:44 ` Flavio Leitner
2014-12-02 18:06 ` Jesse Gross
2014-12-02 21:32 ` Flavio Leitner
2014-12-02 21:47 ` Jesse Gross
2014-12-03 1:58 ` Du, Fan
2014-11-30 10:26 ` Florian Westphal
2014-11-30 10:55 ` Du, Fan
2014-11-30 15:11 ` Florian Westphal
2014-12-01 6:47 ` Du, Fan
2014-12-03 3:23 ` David Miller
2014-12-03 3:32 ` Du, Fan
2014-12-03 4:35 ` David Miller [this message]
2014-12-03 4:50 ` Du, Fan
2014-12-03 5:14 ` David Miller
2014-12-03 6:53 ` Du, Fan
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