On Sun, Apr 09, 2023 at 07:50:34PM -0400, Paul Moore wrote: > On Sun, Apr 9, 2023 at 4:48 AM Linux regression tracking (Thorsten > Leemhuis) <regressions@xxxxxxxxxxxxx> wrote: > > On 30.03.23 03:27, Paul Moore wrote: > > > On Wed, Mar 29, 2023 at 6:20 PM Saeed Mahameed <saeed@xxxxxxxxxx> wrote: > > >> On 28 Mar 19:08, Paul Moore wrote: > > >>> > > >>> Starting with the v6.3-rcX kernel releases I noticed that my > > >>> InfiniBand devices were no longer present under /sys/class/infiniband, > > >>> causing some of my automated testing to fail. It took me a while to > > >>> find the time to bisect the issue, but I eventually identified the > > >>> problematic commit: > > >>> > > >>> commit fe998a3c77b9f989a30a2a01fb00d3729a6d53a4 > > >>> Author: Shay Drory <shayd@xxxxxxxxxx> > > >>> Date: Wed Jun 29 11:38:21 2022 +0300 > > >>> > > >>> net/mlx5: Enable management PF initialization > > >>> > > >>> Enable initialization of DPU Management PF, which is a new loopback PF > > >>> designed for communication with BMC. > > >>> For now Management PF doesn't support nor require most upper layer > > >>> protocols so avoid them. > > >>> > > >>> Signed-off-by: Shay Drory <shayd@xxxxxxxxxx> > > >>> Reviewed-by: Eran Ben Elisha <eranbe@xxxxxxxxxx> > > >>> Reviewed-by: Moshe Shemesh <moshe@xxxxxxxxxx> > > >>> Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx> > > >>> > > >>> I'm not a mlx5 driver expert so I can't really offer much in the way > > >>> of a fix, but as a quick test I did remove the > > >>> 'mlx5_core_is_management_pf(...)' calls in mlx5/core/dev.c and > > >>> everything seemed to work okay on my test system (or rather the tests > > >>> ran without problem). > > >>> > > >>> If you need any additional information, or would like me to test a > > >>> patch, please let me know. > > >> > > >> Our team is looking into this, the current theory is that you have an old > > >> FW that doesn't have the correct capabilities set. > > > > > > That's very possible; I installed this card many years ago and haven't > > > updated the FW once. > > > > > > I'm happy to update the FW (do you have a > > > pointer/how-to?), but it might be good to identify a fix first as I'm > > > guessing there will be others like me ... > > > > Nothing happened here for about ten days afaics (or was there progress > > and I just missed it?). That made me wonder: how sound is Paul's guess > > that there will be others that might run into this? If that's likely it > > afaics would be good to get this regression fixed before the release, > > which is just two or three weeks away. > > > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) > > -- > > Everything you wanna know about Linux kernel regression tracking: > > https://linux-regtracking.leemhuis.info/about/#tldr > > If I did something stupid, please tell me, as explained on that page. > > > > #regzbot poke > > I haven't seen any updates from the mlx5 driver folks, although I may > not have been CC'd? We are extremely slow these days due to combination of holidays (Easter, Passover, Ramadan, spring break e.t.c). Thanks
