vfio-pci: add dependency on vfio-pci-core

[pprindeville]

vfio-pci depends on vfio-pci-core

[zokl]

Hello, your PR is for the master version of OpenWRT, stable branch 22.03 is without vfio support, and the used kernel does not include the Vfio-pci-core module. I check the necessary of my own vfio modules for the master version of OpenWrt.

[pprindeville]

The intention is to rationalize what's already in master with the additional support needed for DPDK and get everything in one place upstream.

Since vfio and vfio-pci are already built in master, all that's really necessary is packaging for the user-space runtime.

[pprindeville]

Okay, can I take your kmod-iommu_v2 directory and make a PR to upstream it into master?

[zokl]

Okay, can I take your kmod-iommu_v2 directory and make a PR to upstream it into master?

Yes, it is possible to make a PR but at first I need to resolve this glibc issue openwrt/openwrt#12631 and test everything over our codes.

[pprindeville]

Okay, can I take your kmod-iommu_v2 directory and make a PR to upstream it into master?

Yes, it is possible to make a PR but at first I need to resolve this glibc issue openwrt/openwrt#12631 and test everything over our codes.

That's for 22.03? I'm talking about merging to master where we're not seeing this issue.

[zokl]

Okay, can I take your kmod-iommu_v2 directory and make a PR to upstream it into master?

Yes, it is possible to make a PR but at first I need to resolve this glibc issue openwrt/openwrt#12631 and test everything over our codes.

That's for 22.03? I'm talking about merging to master where we're not seeing this issue.

Yes, this issue is for last master's version of 22.03.

[pprindeville]

Okay, can I take your kmod-iommu_v2 directory and make a PR to upstream it into master?

Yes, it is possible to make a PR but at first I need to resolve this glibc issue openwrt/openwrt#12631 and test everything over our codes.

That's for 22.03? I'm talking about merging to master where we're not seeing this issue.

Yes, this issue is for last master's version of 22.03.

I can't reproduce it.

[pprindeville]

Have you tried building with MUSL? That's what most of OpenWRT builds with.

[zokl]

Okay, can I take your kmod-iommu_v2 directory and make a PR to upstream it into master?

Yes, it is possible to make a PR but at first I need to resolve this glibc issue openwrt/openwrt#12631 and test everything over our codes.

That's for 22.03? I'm talking about merging to master where we're not seeing this issue.

Yes, this issue is for last master's version of 22.03.

I can't reproduce it.

I have fresh openwrt master environment with glibc enabled.

[zokl]

Have you tried building with MUSL? That's what most of OpenWRT builds with.

Musl works without problem. GLIBC has a problem. I am not able to compile DPDK on musl version of OpenWRT. I need to use GLIBC version.

[zokl]

Have you tried building with MUSL? That's what most of OpenWRT builds with.

Musl works without problem. GLIBC has a problem. I am not able to compile DPDK on musl version of OpenWRT. I need to use GLIBC version.

I use this tutorial: https://github.com/k13132/openwrt-dpdk/blob/main/README.md

[pprindeville]

Have you tried building with MUSL? That's what most of OpenWRT builds with.

Musl works without problem. GLIBC has a problem. I am not able to compile DPDK on musl version of OpenWRT. I need to use GLIBC version.

Because of the <execinfo.h> issue? Yeah, I'm working on a patch for that...

The issue there is that we're using the canned settings in config/rte_config.h for RTE_BACKTRACE, for instance. That should only be set if CONFIG_LIBC == glibc (or CONFIG_USE_GLIBC, etc.)