On Wed, Apr 4, 2018 at 2:34 AM, Mathieu Xhonneux wrote:
> 2018-04-03 16:25 GMT+02:00 David Lebrun :
>> Actually I'm wrong here. dst_input() will call either ip6_input() or
>> ip6_forward(), not ipv6_rcv(). Both functions expect IP6CB() to be set,
>> so using skb->cb here will interfere with them.
2018-04-03 16:25 GMT+02:00 David Lebrun :
> Actually I'm wrong here. dst_input() will call either ip6_input() or
> ip6_forward(), not ipv6_rcv(). Both functions expect IP6CB() to be set,
> so using skb->cb here will interfere with them.
>
> What about saving and restoring the IPv6 CB, similarly to
On 04/03/2018 07:25 AM, David Lebrun wrote:
>
> What about saving and restoring the IPv6 CB, similarly to what TCP does with
> tcp_v6_restore_cb() ?
Note that TCP only moves IPCB around in skb->cb[] for cache locality gains.
Now we switched to rb-tree for out-of-order queue, these gains might
On 04/03/2018 02:40 PM, David Lebrun wrote:
On 04/03/2018 12:16 PM, Mathieu Xhonneux wrote:
In patch 2 I was a bit concerned that:
+ struct seg6_bpf_srh_state *srh_state = (struct
seg6_bpf_srh_state *)
+ &skb->cb;
would not collide with othe
On 04/03/2018 12:16 PM, Mathieu Xhonneux wrote:
In patch 2 I was a bit concerned that:
+ struct seg6_bpf_srh_state *srh_state = (struct seg6_bpf_srh_state *)
+ &skb->cb;
would not collide with other users of skb->cb, but it seems the way
the ho
2018-03-31 1:03 GMT+02:00 Alexei Starovoitov :
>
> On Fri, Mar 23, 2018 at 10:15:59AM +, Mathieu Xhonneux wrote:
> > As of Linux 4.14, it is possible to define advanced local processing for
> > IPv6 packets with a Segment Routing Header through the seg6local LWT
> > infrastructure. This LWT imp
On Fri, Mar 23, 2018 at 10:15:59AM +, Mathieu Xhonneux wrote:
> As of Linux 4.14, it is possible to define advanced local processing for
> IPv6 packets with a Segment Routing Header through the seg6local LWT
> infrastructure. This LWT implements the network programming principles
> defined in t
As of Linux 4.14, it is possible to define advanced local processing for
IPv6 packets with a Segment Routing Header through the seg6local LWT
infrastructure. This LWT implements the network programming principles
defined in the IETF “SRv6 Network Programming” draft.
The implemented operations are
