On 08/03/2015 08:16 AM, Alexei Starovoitov wrote:
On 8/2/15 6:09 PM, Tom Herbert wrote:
I was thinking whether to add skb_get_hash(), but then concluded the
>raw skb->hash seems fine in this case: we can directly access the hash
>w/o extra eBPF helper function call, it's filled out by many NICs
On 8/2/15 6:09 PM, Tom Herbert wrote:
I was thinking whether to add skb_get_hash(), but then concluded the
>raw skb->hash seems fine in this case: we can directly access the hash
>w/o extra eBPF helper function call, it's filled out by many NICs on
>ingress, and in case the entropy level would no
On Fri, Jul 31, 2015 at 3:46 PM, Daniel Borkmann wrote:
> Add skb->hash to the __sk_buff offset map, so it can be accessed from
> an eBPF program. We currently already do this for classic BPF filters,
> but not yet on eBPF, it might be useful as a demuxer in combination with
> helpers like bpf_clo
From: Daniel Borkmann
Date: Sat, 1 Aug 2015 00:46:29 +0200
> Add skb->hash to the __sk_buff offset map, so it can be accessed from
> an eBPF program. We currently already do this for classic BPF filters,
> but not yet on eBPF, it might be useful as a demuxer in combination with
> helpers like bp
Add skb->hash to the __sk_buff offset map, so it can be accessed from
an eBPF program. We currently already do this for classic BPF filters,
but not yet on eBPF, it might be useful as a demuxer in combination with
helpers like bpf_clone_redirect(), toy example:
__section("cls-lb") int ingress_ma
