On 20/10/2015 11:41, "David Evans" wrote:
>Thanks Daniele
>
>may_steal sounds like the right thing, but i couldn’t see how it’s set by
>the group OFPGT11_ALL code path.
>Also - maybe refcnt + cloning would be a more efficient option (assuming
>no packet mod’s would occur after the group)
The
Thanks Daniele
may_steal sounds like the right thing, but i couldn’t see how it’s set by the
group OFPGT11_ALL code path.
Also - maybe refcnt + cloning would be a more efficient option (assuming no
packet mod’s would occur after the group)
My main concern is where there are multiple packets fo
Hi,
Currently every DPDK mbuf in OVS has the `refcnt` set to one. Output to
multiple ports is handled by making a copy of the packet's payload (see
`may_steal` in dp_netdev_execute_actions(), and in netdev_send()).
You're right, having a `refcnt` != 1 might be necessary to use
rte_ipv4_fragment_p
I don't understand what you're asking for.
Daniele or Pravin, I think that you know the DPDK datapath well. Do you
understand what David wants or why?
On Thu, Oct 15, 2015 at 01:15:11PM -0500, David Evans wrote:
> Thanks Ben,
>
> If that’s the case, then it would be better to be adding custom a
Thanks Ben,
If that’s the case, then it would be better to be adding custom action that
applies prior to this group action, to update the refcnt.
I expect it just has to happen some time before the first PMD has finished
processing the packet so that the packet does not get deleted by the tx r
Your change isn't going to have much effect because most packets don't
go through the translation process. If you try to force all packets
through translation, it will kill performance.
I think that you should read this paper that describes the various
caching layers in Open vSwitch:
http
Hi Ben,
When i use the OFPGT11_ALL group action, the packets for a flow will be sent
out all buckets in a group. (in my case all the buckets are ports to transmit
out)
I added a group_bucket_count to the context
and
in xlate_all_group fn the following.
group_dpif_get_buckets(group, &buc
On Wed, Oct 07, 2015 at 05:36:18PM -0500, David Evans wrote:
> While using netdev-dpdk - When i add a rule for which the action is to
> send to a group (type=all) containing (x) output buckets (ports) how
> can i increment the dp_packet->pkt_mbuf’s refcnt to (x) so that the
> packet is not deleted
Hi all,
While using netdev-dpdk - When i add a rule for which the action is to send to
a group (type=all) containing (x) output buckets (ports) how can i increment
the dp_packet->pkt_mbuf’s refcnt to (x) so that the packet is not deleted
before it has transmitted all ports(buckets) in the grou
