> -----Original Message----- > From: Christian Ehrhardt <christian.ehrha...@canonical.com> > Sent: Monday, November 8, 2021 8:32 PM > To: Jan Viktorin <vikto...@rehivetech.com>; Ruifeng Wang > <ruifeng.w...@arm.com>; dev <dev@dpdk.org> > Cc: Luca Boccassi <bl...@debian.org> > Subject: Probing the expected state/support of DPDK@armhf > > Hi, > I wanted to ask about the current state of DPDK@armhf (not arm64, that > seems fine AFAICS). > Since there are too many arms today, I mean armhf as in [0]. I think armhf in question refers to armv7.
> > What I see when building DPDK 21.11 is > 2973 ../config/meson.build:364:1: ERROR: Problem encountered: Number of > CPU cores not specified. > > Right now this seems to be broken the same everywhere - Suse [1], fedora > [2], Debian/Ubuntu [3] Looks like this happens with native build on armv7 machine. RTE_MAX_LCORE is not set for the build. > > I'm not asking for a fix for this particular issue (although I guess people > would > be happy), but more about the general state of DPDK@armhf. > > Debian and Ubuntu used to build it on armhf as well, but over the recent > years I feel (no hard data) that usage there was next to none. > > OTOH Thomas said that recently people cared about armv7 [4] > > My suggestion would be to disable the build on armhf in Debian/Ubuntu > (+elsewhere?) until it reaches a more stable phase and real use-cases. > But maybe I missed some use-cases, therefore I wanted to reach out to the > mailing list to probe for more opinions on this. I'm not aware of amount of users that using DPDK on armv7. But [4] suggests that there is real use case. I think the build on armhf does have value. It helps to maintain general status on armv7. That is one of the reason why user [4] can enable armv7 cross compile smoothly. I suggest to keep the build and fix the failure. > > Thanks for your thoughts on this in advance! > > P.S. If it is meant to work and be supported, then we will need a fix for that Hi Juraj, Can you have a look at the issue? > > [0]: https://wiki.debian.org/ArmHardFloatPort > [1]: > https://build.opensuse.org/public/build/home:bluca:dpdk/openSUSE_Facto > ry_ARM/armv7l/dpdk/_log > [2]: > https://build.opensuse.org/public/build/home:bluca:dpdk/Fedora_35/armv > 7l/dpdk/_log > [3]: https://launchpadlibrarian.net/567810935/buildlog_ubuntu-jammy- > armhf.dpdk_21.11~rc1-1u~ppa1_BUILDING.txt.gz > [4]: https://patches.dpdk.org/project/dpdk/patch/20210610111839.7481-1- > s.chandrak...@globaledgesoft.com/ > > -- > Christian Ehrhardt > Staff Engineer, Ubuntu Server > Canonical Ltd
