Messages in this thread | | | Date | Thu, 8 Dec 2022 17:48:58 +0100 | Subject | Re: [PATCH 0/9] platform/surface: aggregator: Improve target/source handling in SSH messages | From | Maximilian Luz <> |
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On 12/8/22 17:24, Benjamin Tissoires wrote: > On Thu, Dec 8, 2022 at 5:03 PM Hans de Goede <hdegoede@redhat.com> wrote: >> >> Hi Maximilian, >> >> On 12/2/22 23:33, Maximilian Luz wrote: >>> We have some new insights into the Serial Hub protocol, obtained through >>> reverse engineering. In particular, regarding the command structure. The >>> input/output target IDs actually represent source and target IDs of >>> (what looks like) physical entities (specifically: host, SAM EC, KIP EC, >>> debug connector, and SurfLink connector). >>> >>> This series aims to improve handling of messages with regards to those >>> new findings and, mainly, improve clarity of the documentation and usage >>> around those fields. >>> >>> See the discussion in >>> >>> https://github.com/linux-surface/surface-aggregator-module/issues/64 >>> >>> for more details. >>> >>> There are a couple of standouts: >>> >>> - Patch 1 ensures that we only handle commands actually intended for us. >>> It's possible that we receive messages not intended for us when we >>> enable debugging. I've kept it intentionally minimal to simplify >>> backporting. The rest of the series patch 9 focuses more on clarity >>> and documentation, which is probably too much to backport. >>> >>> - Patch 8 touches on multiple subsystems. The intention is to enforce >>> proper usage and documentation of target IDs in the SSAM_SDEV() / >>> SSAM_VDEV() macros. As it directly touches those macros I >>> unfortunately can't split it up by subsystem. >>> >>> - Patch 9 is a loosely connected cleanup for consistency. >> >> Thank you for the patches. Unfortunately I don't have time atm to >> review this. >> >> And the next 2 weeks are the merge window, followed by 2 weeks >> of christmas vacation. >> >> So I'm afraid that I likely won't get around to reviewing >> this until the week of January 9th. >> >>> Hans, Jiri, Benjamin, Sebastian: While patch 8 ("platform/surface: >>> aggregator: Enforce use of target-ID enum in device ID macros") touches >>> multiple subsystems, it should be possible to take the whole series >>> through the pdx86 tree. The changes in other subsystems are fairly >>> limited. >> >> I agree that it will be best to take all of this upstream through the >> pdx86 tree. Sebastian thank you for the ack for patch 8/9. >> >> Jiri or Benjamin may we have your ack for merging patch 7/9 + 8/9 >> through the pdx86 tree ? > > I can give you an ack for taking those through your tree, but I can > not review the patches themselves because I was only CC-ed to those 2, > and so was linux-input. Given that SSAM_SSH_TID_KIP is not in my > current tree I assume it comes from this series. > > Anyway, enough ranting :)
Apologies for that. I should have included you in the CC on at least patch 2 as well, which introduces this symbol.
FWIW, here's the patchwork link to this series:
https://patchwork.kernel.org/project/platform-driver-x86/list/?series=701392
Regards, Max
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