Bug#949863: [Vasudev Kamath] Re: Bug#949863: Info received (#949863: please enable CONFIG_NET_SWITCHDEV)
Sending it to BTS to track in bug log. --- Begin Message --- [Sending reply to bug so we can have a record of discussion] [Please keep Ashruth and my colleague in CC while replying] Tzafrir Cohen writes: [snip] >> >> I don't think we should make a config change that hurts users of stock >> Debian, for the benefit of those using out-of-tree drivers. And in a >> stable point release, a known regression like that is unacceptable. > > Could you please clarify: is that a regression? That is: in the current > Buster kernel the problem does not exist? Yes it looks like regression. Had a discussion with Mellanox (Ashruth Cced) and looks like its fixed upstream [1]. Currently we found a work around for this that is to make bonding enabled first and then enable SR-IOV. This bug happens only if we have enabled SR-IOV on slave interface before enabling bond. Ashruth is [1] the right patch?. If not can you point to right patch?. Ben if a patch is available in main-stream can that be cherry picked to stable point release to enable this config option?. [1] https://github.com/torvalds/linux/commit/7ff40a46dd188b83311203e72cedf42eb264fdf1 Cheers, Vasudev --- End Message ---
Bug#949863: Info received (#949863: please enable CONFIG_NET_SWITCHDEV)
Ben Hutchings writes: > On Mon, 9 Mar 2020 13:58:38 +0200 Tzafrir Cohen wrote: >> Hi, >> >> > Also: please consider this change for inclusion in a stable update, if >> > possible. >> >> I see that this was merged into git. Thanks. What are the chances of >> this fix getting included into Debian 10.4 to allow OVS off-loading there? > > I think it's reasonable, but will need to consult with the release > team. In case this should only happen after the change has gone into > unstable and testing. Wanted to update my findings on Buster with this patch. We use Mellanox Connect-X5 series nic (dual port) and have a bonded setup. Both ports are bonded with 802.3ad and the bond device is put on a bridge (br0) and br0 gets the IP address. In this setup with CONFIG_NET_SWITCHDEV enabled bond0 is not placed on br0 and I see a message: ifup: can't add bond0 to bridge br0: No data available This happens with Mellanox inbox driver in Kernel but if I install latest OFED there is no issue. So I'm not sure how other NIC's behave with this option enabled. Cheers,
Bug#949863: Info received (#949863: please enable CONFIG_NET_SWITCHDEV)
On Mon, 9 Mar 2020 13:58:38 +0200 Tzafrir Cohen wrote: > Hi, > > > Also: please consider this change for inclusion in a stable update, if > > possible. > > I see that this was merged into git. Thanks. What are the chances of > this fix getting included into Debian 10.4 to allow OVS off-loading there? I think it's reasonable, but will need to consult with the release team. In case this should only happen after the change has gone into unstable and testing. Ben. -- Ben Hutchings We get into the habit of living before acquiring the habit of thinking. - Albert Camus signature.asc Description: This is a digitally signed message part
Bug#949863: Info received (#949863: please enable CONFIG_NET_SWITCHDEV)
Hi, > Also: please consider this change for inclusion in a stable update, if > possible. I see that this was merged into git. Thanks. What are the chances of this fix getting included into Debian 10.4 to allow OVS off-loading there? Thanks, -- Tzafrir
