Next Meeting will be May 15th, with Bruce as chair.
Attendees
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- Aaron (chair)
- Morten Brorup
- David Marchand
- Konstantin Ananyev
- Tyler Retzlaff
- Mykola Kostenok
- Paul Szczepanik
- Kevin Traynor
- Jerin Jacob Kollanukkaran
- Nathan Southern
- Patrick Robb
- Stephen Hemminger
- Bruce Richardson
- Honnappa Nagarahalli
- Nathan Southern
- Ben Thomas
Topics
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- MSVC VLAs
- Tyler mentioned this is a blocking issue currently
MSVC does not support VLAs and is not going to support VLAs
- All supported compilers, including MSVC support using
'alloca' as an alternative to VLAs, but there is resistance
to using 'alloca'.
- Asking for input on how to resolve the issue
- Stephen advocates fixing the libraries not to use VLAs
where drivers may be addressed later.
- Tyler has been working on changing some of the
libraries
- Bruce, plan to replace the minimum set seems reasonable
- Konstantin, alloca looks unavoidable in some cases and
isn't in favor of just blanket replacing it via grep.
- If there is an obvious replacement for the pattern being
used, then use it, otherwise maybe look to use static arrays
to synthesize an alloca, or other techniques.
- Tyler to continue working and will put series forward
- QUIC library to support HW Offload
- Ask is from the Gov board, and don't have many details
- Looking for an owner for this effort
- TCP Optimization for ML/AI use cases
- Linux kernel does have some kind of story here
- Looking for an owner for this effort
- Kernel header import
- Maxime proposes to automate importing the Linux
kernel uAPI headers
- Background:
- Current process need to redefine the same things which
exist, or have a current kernel tree for the vduse
drivers.
- Concerns:
- Headers for the uAPI have some kinds of licensing
exceptions
- Need clarification from Gov board about including the
uAPI licensed headers.
- There ends up being issues with maintainership, which
versions of headers are included, whether there are
kinds of issues with version compatibility.
- QEMU currently does the same as Maxime has confirmed.
QEMU seems to only copy the headers needed and updates
them only when needed.
- Alternative, can we have DPDK build to point to a
different kernel header file location?
This does introduce its own issues (who is responsible for
compilation failures, etc). Adding a fixed version in the
tree avoids the problem of pointing to a tree.
- Have a mechanism to download headers?
Also has issues - what URL to use? Kernel headers can't
come directly from git, need to be sanitized via
make headers-install
- Open Questions:
- Can we ask the gov board for clarification?
- Agree to move to the mailing list for discussion
- Coding Challenge
- Ben ran a poll on social media, positive response to the
idea of coding challenge.
- Interest looks like rust integration was highest, then
protocol integration, ai- integration, and others following
- Rust seems to generate the most interest?
- Questions:
- When is it supposed to happen?
- Next step is to present to Gov Board to get logistics
resolved, so best guess is Q3
- How long would it last?
- Scope is quite large for 'rust integration', and it is
not clear what the challenge and scope would be.
- Trying to get it in time for Summit.
- Stephen, wants to make sure each time gets attention,
ownership, and movement.
- Ben will present the details to the Gov Board
- Next meeting date scheduled for 15-May
- voted
- Mykola has questions about submitting for a refactored PMD series
- Answered some live, referred to the guides in the documentation
as well.
- Plan to send a simpler version of the PMD
- Include any restrictions in docs
- Trying to understand the deadlines as well for the PMD
submissions
- Drivers generally get merged in -RC2
- Suggestion is to post patches early because reviews will take
some time.
- Update on the Gov Board events votes:
- Approved Bangkok event in July
- Will work on aggressively promoting because there isn't
much time left to promote.
- Webinar event was attended 1/2 by members of APAC, so
it should be good.
- Montreal event in fall will be covered with Gov Board again
on April 30.
- Date has been difficult, but looks to be 24-Sep
