From: David Ahern <dsahern@gmail.com>
To: Jason Wang <jasowang@redhat.com>,
Jesper Dangaard Brouer <jbrouer@redhat.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
ast@kernel.org, daniel@iogearbox.net, mst@redhat.com
Subject: Re: [RFC PATCH net-next V2 0/6] XDP rx handler
Date: Fri, 17 Aug 2018 15:15:01 -0600 [thread overview]
Message-ID: <ae0e09a1-a20a-a2fc-36a0-82e109216bf4@gmail.com> (raw)
In-Reply-To: <2792239a-ed3b-d66e-0c1c-e99455311eff@redhat.com>
On 8/15/18 9:34 PM, Jason Wang wrote:
> I may miss something but BPF forbids loop. Without a loop how can we
> make sure all stacked devices is enumerated correctly without knowing
> the topology in advance?
netdev_for_each_upper_dev_rcu
BPF helpers allow programs to do lookups in kernel tables, in this case
the ability to find an upper device that would receive the packet.
next prev parent reply other threads:[~2018-08-17 21:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-13 3:17 [RFC PATCH net-next V2 0/6] XDP rx handler Jason Wang
2018-08-13 3:17 ` [RFC PATCH net-next V2 1/6] net: core: factor out generic XDP check and process routine Jason Wang
2018-08-13 3:17 ` [RFC PATCH net-next V2 2/6] net: core: generic XDP support for stacked device Jason Wang
2018-08-13 3:17 ` [RFC PATCH net-next V2 3/6] net: core: introduce XDP rx handler Jason Wang
2018-08-13 3:17 ` [RFC PATCH net-next V2 4/6] macvlan: count the number of vlan in source mode Jason Wang
2018-08-13 3:17 ` [RFC PATCH net-next V2 5/6] macvlan: basic XDP support Jason Wang
2018-08-13 3:17 ` [RFC PATCH net-next V2 6/6] virtio-net: support XDP rx handler Jason Wang
2018-08-14 9:22 ` Jesper Dangaard Brouer
2018-08-14 13:01 ` Jason Wang
2018-08-14 0:32 ` [RFC PATCH net-next V2 0/6] " Alexei Starovoitov
2018-08-14 7:59 ` Jason Wang
2018-08-14 10:17 ` Jesper Dangaard Brouer
2018-08-14 13:20 ` Jason Wang
2018-08-14 14:03 ` David Ahern
2018-08-15 0:29 ` Jason Wang
2018-08-15 5:35 ` Alexei Starovoitov
2018-08-15 7:04 ` Jason Wang
2018-08-16 2:49 ` Alexei Starovoitov
2018-08-16 4:21 ` Jason Wang
2018-08-15 17:17 ` David Ahern
2018-08-16 3:34 ` Jason Wang
2018-08-16 4:05 ` Alexei Starovoitov
2018-08-16 4:24 ` Jason Wang
2018-08-17 21:15 ` David Ahern [this message]
2018-08-20 6:34 ` Jason Wang
2018-09-05 17:20 ` David Ahern
2018-09-06 5:12 ` Jason Wang
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