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From: Jiri Benc <jbenc@redhat.com>
To: Jan Scheurich <jan.scheurich@ericsson.com>
Cc: "Yang, Yi" <yi.y.yang@intel.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"dev@openvswitch.org" <dev@openvswitch.org>,
	"blp@ovn.org" <blp@ovn.org>, "e@erig.me" <e@erig.me>
Subject: Re: [PATCH net-next v4] openvswitch: enable NSH support
Date: Mon, 21 Aug 2017 11:51:06 +0200	[thread overview]
Message-ID: <20170821115106.70fa1e1d@griffin> (raw)
In-Reply-To: <CFF8EF42F1132E4CBE2BF0AB6C21C58D7274A55C@ESESSMB107.ericsson.se>

On Mon, 21 Aug 2017 09:42:27 +0000, Jan Scheurich wrote:
> I understand your concern. But not declaring md2 as array is wrong as
> well, as there might not be an MD2 TLV context header. An MD2 NSH
> header is perfectly valid without any TLV. So in any case the user of
> the struct needs to be aware of the NSH semantics.

Good point.

> NSH can be carried over Ethernet with a 14 byte header. In that case
> the total NSH header would typically be 16-bit aligned, so that all
> 32-bit members would be misaligned.

See NET_IP_ALIGN in include/linux/skbuff.h.

 Jiri

  reply	other threads:[~2017-08-21  9:51 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-18  7:24 [PATCH net-next v4] openvswitch: enable NSH support Yi Yang
2017-08-18 13:26 ` Jiri Benc
2017-08-18 13:31   ` Jiri Benc
2017-08-21  6:31     ` Yang, Yi
2017-08-21  6:11   ` Yang, Yi
     [not found]     ` <20170821061109.GA72656-re2EX8HDrk21gSHoDXDV2kEOCMrvLtNR@public.gmane.org>
2017-08-21  8:19       ` Jiri Benc
2017-08-21  8:39         ` Yang, Yi
2017-08-21  9:04           ` Jan Scheurich
     [not found]             ` <CFF8EF42F1132E4CBE2BF0AB6C21C58D727494F3-hqolJogE5njKJFWPz4pdheaU1rCVNFv4@public.gmane.org>
2017-08-21  9:31               ` Jan Scheurich
2017-08-21  9:35               ` Jiri Benc
2017-08-21  9:42                 ` Jan Scheurich
2017-08-21  9:51                   ` Jiri Benc [this message]
2017-08-21 10:10                     ` Jan Scheurich
     [not found]                       ` <CFF8EF42F1132E4CBE2BF0AB6C21C58D7274A5C7-hqolJogE5njKJFWPz4pdheaU1rCVNFv4@public.gmane.org>
2017-08-21 11:50                         ` Jiri Benc
2017-08-22  8:32                           ` Jan Scheurich
     [not found]                             ` <CFF8EF42F1132E4CBE2BF0AB6C21C58D7274C9FB-hqolJogE5njKJFWPz4pdheaU1rCVNFv4@public.gmane.org>
2017-08-22 17:35                               ` Ben Pfaff
2017-08-23 15:27                                 ` David Laight
     [not found]           ` <20170821083900.GA74649-re2EX8HDrk21gSHoDXDV2kEOCMrvLtNR@public.gmane.org>
2017-08-21  9:18             ` Jiri Benc
2017-08-21  9:15               ` Yang, Yi
2017-08-21  9:47                 ` Jiri Benc
2017-08-21 11:11                   ` Yang, Yi
2017-08-22  9:38                   ` Yang, Yi
2017-08-23  7:26                     ` Jiri Benc
2017-08-18 19:09 ` Eric Garver
2017-08-21  6:21   ` Yang, Yi

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