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Groups > linux.kernel > #1368977
| From | Eric Dumazet <eric.dumazet@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu |
| Date | 2016-04-01 05:00 +0200 |
| Message-ID | <riXtx-6ie-9@gated-at.bofh.it> (permalink) |
| References | <riDOa-iF-3@gated-at.bofh.it> <riDOa-iF-7@gated-at.bofh.it> <riIb9-3Af-39@gated-at.bofh.it> <riWQO-62F-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, 2016-04-01 at 10:13 +0800, Jason Wang wrote: > > The problem is we want to support busy polling for tun. This needs > napi_id to be passed to tun socket by sk_mark_napi_id() during > tun_net_xmit(). But before reaching this, XPS will set sender_cpu will > make us can't see correct napi_id. > Looks like napi_id should have precedence then ? Only forwarding should allow the field to be cleared to allow XPS to do its job. Maybe skb_sender_cpu_clear() was removed too early (commit 64d4e3431e686dc37ce388ba531c4c4e866fb141) Look, it is 8pm here, I am pretty sure a solution can be found, but I am also need to take a break, I started at 3am today...
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[PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Jason Wang <jasowang@redhat.com> - 2016-03-31 08:00 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Eric Dumazet <eric.dumazet@gmail.com> - 2016-03-31 12:40 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu David Miller <davem@davemloft.net> - 2016-03-31 22:10 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Jason Wang <jasowang@redhat.com> - 2016-04-01 04:50 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Jason Wang <jasowang@redhat.com> - 2016-04-01 04:20 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Eric Dumazet <eric.dumazet@gmail.com> - 2016-04-01 05:00 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Jason Wang <jasowang@redhat.com> - 2016-04-01 06:50 +0200
Re: [PATCH net-next 1/6] net: skbuff: don't use union for napi_id and sender_cpu Eric Dumazet <eric.dumazet@gmail.com> - 2016-04-01 15:10 +0200
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