From: ebiederm@xmission.com (Eric W. Biederman)
To: Changli Gao <xiaosuo@gmail.com>
Cc: "Jiri Pirko" <jpirko@redhat.com>,
"Nicolas de Pesloüan" <nicolas.2p.debian@gmail.com>,
"Jesse Gross" <jesse@nicira.com>,
"David Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, shemminger@linux-foundation.org,
kaber@trash.net, fubar@us.ibm.com, eric.dumazet@gmail.com,
andy@greyhouse.net
Subject: Re: [patch net-next-2.6 v2] net: vlan: make non-hw-accel rx path similar to hw-accel
Date: Sun, 22 May 2011 03:26:10 -0700 [thread overview]
Message-ID: <m1wrhjni9p.fsf@fess.ebiederm.org> (raw)
In-Reply-To: <BANLkTin6u7VptTm3se_bLdEeTOz2OVc_Rw@mail.gmail.com> (Changli Gao's message of "Sun, 22 May 2011 18:17:52 +0800")
Changli Gao <xiaosuo@gmail.com> writes:
> On Sun, May 22, 2011 at 5:37 PM, Jiri Pirko <jpirko@redhat.com> wrote:
>>>
>>>For a transparent bridge with ports: eth0 and eth1, the vlan tags
>>>need to be preserved.
>>
>> Yet they are - in skb->vlan_tci. I see no problem here. It's the same as
>> if the NIC does hw-untagging itself.
>>
>
> Although they are in skb->vlan_tci, but the xmit nic, which doesn't
> support hw-accel-vlan-tx, doesn't use them to tag the outgoing
> packets. Correct me if I am wrong.
There is software emulation in dev_hard_start_xmit for the nics
that don't support the feature. So we will properly add tags.
Eric
next prev parent reply other threads:[~2011-05-22 10:26 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-08 5:48 [patch net-next-2.6 v2] net: vlan: make non-hw-accel rx path similar to hw-accel Jiri Pirko
2011-04-12 21:16 ` David Miller
2011-05-21 1:11 ` Changli Gao
2011-05-21 7:29 ` Jiri Pirko
2011-05-21 10:43 ` Changli Gao
2011-05-21 13:17 ` Nicolas de Pesloüan
2011-05-21 17:54 ` Jesse Gross
2011-05-21 22:15 ` Stephen Hemminger
2011-05-22 2:59 ` Nicolas de Pesloüan
2011-05-22 6:29 ` Jiri Pirko
2011-05-22 6:34 ` Eric W. Biederman
2011-05-22 8:34 ` Nicolas de Pesloüan
2011-05-22 8:52 ` Michał Mirosław
2011-05-22 9:10 ` Nicolas de Pesloüan
2011-05-22 9:20 ` Michał Mirosław
2011-05-22 9:36 ` Jiri Pirko
2011-05-22 9:53 ` Nicolas de Pesloüan
2011-05-22 10:04 ` Michał Mirosław
2011-05-22 16:11 ` Jesse Gross
2011-05-22 18:24 ` Eric W. Biederman
2011-05-22 19:33 ` Eric W. Biederman
2011-05-22 19:39 ` [PATCH 1/3] vlan: Do not support clearing VLAN_FLAG_REORDER_HDR Eric W. Biederman
2011-05-22 19:40 ` [PATCH 2/3] vlan: Always strip the vlan header in vlan_untag Eric W. Biederman
2011-05-22 19:42 ` [PATCH 3/3] vlan: Simplify the code now that VLAN_FLAG_REORDER_HDR is always set Eric W. Biederman
2011-06-09 10:59 ` Jiri Pirko
2011-06-12 6:17 ` Eric W. Biederman
2011-05-22 21:04 ` [PATCH 1/3] vlan: Do not support clearing VLAN_FLAG_REORDER_HDR Ben Greear
2011-05-22 22:38 ` Eric W. Biederman
2011-05-23 0:38 ` Changli Gao
2011-05-23 1:26 ` Changli Gao
2011-05-23 1:45 ` Eric W. Biederman
2011-05-23 2:14 ` Changli Gao
2011-05-23 9:41 ` Eric W. Biederman
2011-05-23 10:43 ` Jiri Pirko
2011-05-23 19:48 ` Nicolas de Pesloüan
2011-05-24 5:58 ` Jiri Pirko
2011-05-24 7:19 ` Nicolas de Pesloüan
2011-05-23 1:39 ` Eric W. Biederman
2011-05-23 6:01 ` Ben Greear
2011-05-23 9:00 ` Eric W. Biederman
2011-05-23 16:33 ` Ben Greear
2011-05-23 19:36 ` Nicolas de Pesloüan
2011-05-23 20:24 ` Ben Greear
2011-05-23 21:00 ` Stephen Hemminger
2011-05-23 21:20 ` David Miller
2011-05-23 22:05 ` Eric W. Biederman
2011-05-23 22:16 ` Stephen Hemminger
2011-05-23 22:48 ` Eric W. Biederman
2011-05-23 22:23 ` Ben Greear
2011-05-23 23:02 ` Eric W. Biederman
2011-05-24 4:20 ` Ben Greear
2011-05-24 7:11 ` Nicolas de Pesloüan
2011-05-24 7:44 ` Michał Mirosław
2011-05-24 15:17 ` Ben Greear
2011-05-24 5:19 ` David Miller
2011-05-24 7:56 ` Eric W. Biederman
2011-05-24 15:44 ` Ben Greear
2011-05-24 0:11 ` [PATCH] vlan: Fix the b0rked ingress VLAN_FLAG_REORDER_HDR check Eric W. Biederman
2011-05-24 4:54 ` David Miller
2011-05-24 6:18 ` Eric W. Biederman
2011-05-24 6:24 ` David Miller
2011-05-24 7:38 ` Eric W. Biederman
2011-06-02 3:59 ` David Miller
2011-06-02 13:03 ` [PATCH] vlan: Fix the ingress VLAN_FLAG_REORDER_HDR check v2 Eric W. Biederman
2011-06-02 13:15 ` Jiri Pirko
2011-06-02 14:54 ` Changli Gao
2011-06-02 15:26 ` Eric W. Biederman
2011-06-02 23:18 ` Changli Gao
2011-06-06 14:48 ` Jiri Pirko
2011-06-03 3:34 ` padmanabh ratnakar
2011-06-03 3:59 ` Changli Gao
2011-06-05 21:14 ` David Miller
2011-06-10 8:35 ` [PATCH v3] vlan: Fix the ingress VLAN_FLAG_REORDER_HDR check Jiri Pirko
2011-06-10 9:26 ` Changli Gao
2011-06-10 9:34 ` Jiri Pirko
2011-06-10 9:49 ` Changli Gao
2011-06-10 10:35 ` Jiri Pirko
2011-06-10 11:20 ` Changli Gao
2011-06-10 12:12 ` Jiri Pirko
2011-06-10 16:56 ` Jiri Pirko
2011-06-11 0:05 ` Changli Gao
2011-06-11 23:16 ` David Miller
2011-06-08 16:28 ` [PATCH] vlan: Fix the ingress VLAN_FLAG_REORDER_HDR check v2 Jiri Pirko
2011-06-08 23:08 ` Changli Gao
2011-06-09 6:01 ` Jiri Pirko
2011-06-09 11:00 ` [PATCH 1/3] vlan: Do not support clearing VLAN_FLAG_REORDER_HDR Jiri Pirko
2011-05-22 8:38 ` [patch net-next-2.6 v2] net: vlan: make non-hw-accel rx path similar to hw-accel Changli Gao
2011-05-22 9:37 ` Jiri Pirko
2011-05-22 10:17 ` Changli Gao
2011-05-22 10:26 ` Eric W. Biederman [this message]
2011-05-22 10:40 ` Changli Gao
2011-05-22 13:16 ` Jiri Pirko
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