From: Julian Anastasov <ja@ssi.bg>
To: David Ahern <dsa@cumulusnetworks.com>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next 06/13] net: original ingress device index in PKTINFO
Date: Thu, 5 May 2016 23:00:36 +0300 (EEST) [thread overview]
Message-ID: <alpine.LFD.2.11.1605052248480.2328@ja.home.ssi.bg> (raw)
In-Reply-To: <572B6012.60806@cumulusnetworks.com>
Hello,
On Thu, 5 May 2016, David Ahern wrote:
> On 5/5/16 2:41 AM, Julian Anastasov wrote:
> > > + IPCB(skb)->iif = skb->skb_iif;
> >
> > For loopback traffic (including looped back multicast)
> > this is now a zero :( Can inet_iif be moved to ip_rcv_finish
> > instead? Still, we spend cycles in fast path in case nobody
> > listens for such info.
>
> Why is that? skb_iif is set to skb->dev->index in __netif_receive_skb_core and
> ip_rcv is called it. Is there another path to it?
You are right, it is 0 only for the output path.
Regards
next prev parent reply other threads:[~2016-05-05 20:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 3:33 [PATCH net-next 00/13] net: Various VRF patches David Ahern
2016-05-05 3:33 ` [PATCH net-next 01/13] net: vrf: Create FIB tables on link create David Ahern
2016-05-05 3:33 ` [PATCH net-next 02/13] net: l3mdev: Move get_saddr and rt6_dst David Ahern
2016-05-05 3:33 ` [PATCH net-next 03/13] net: l3mdev: Allow send on enslaved interface David Ahern
2016-05-05 7:40 ` Julian Anastasov
2016-05-05 14:50 ` David Ahern
2016-05-05 3:33 ` [PATCH net-next 04/13] net: ipv6: tcp reset, icmp need to consider L3 domain David Ahern
2016-05-05 3:33 ` [PATCH net-next 05/13] net: l3mdev: Add hook in ip and ipv6 David Ahern
2016-05-05 3:33 ` [PATCH net-next 06/13] net: original ingress device index in PKTINFO David Ahern
2016-05-05 8:41 ` Julian Anastasov
2016-05-05 15:00 ` David Ahern
2016-05-05 20:00 ` Julian Anastasov [this message]
2016-05-05 3:33 ` [PATCH net-next 07/13] net: vrf: ipv4 support for local traffic to local addresses David Ahern
2016-05-05 3:33 ` [PATCH net-next 08/13] net: vrf: ipv6 " David Ahern
2016-05-05 3:33 ` [PATCH net-next 09/13] net: l3mdev: Propagate route lookup flags for IPv6 David Ahern
2016-05-05 3:33 ` [PATCH net-next 10/13] net: vrf: Handle ipv6 multicast and link-local addresses David Ahern
2016-05-05 3:33 ` [PATCH net-next 11/13] net: vrf: rcu protect changes to private data David Ahern
2016-05-05 3:33 ` [PATCH net-next 12/13] net: vrf: Implement get_saddr for IPv6 David Ahern
2016-05-05 3:33 ` [PATCH net-next 13/13] net: ipv6: address selection should only consider devices in L3 domain David Ahern
2016-05-05 3:59 ` [PATCH net-next 00/13] net: Various VRF patches David Miller
2016-05-05 4:13 ` David Ahern
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