On Mon, 20 May 2024 18:46:30 +0100 Ferruh Yigit <ferruh.yi...@amd.com> wrote:
> On 5/2/2024 10:31 PM, Stephen Hemminger wrote: > > The TAP device can use same file descriptor for both rx and tx queues. > > This allows up to 8 queues (versus 4) to be used with secondary process. > > > > It would be nice to briefly update where this limit comes from, as > removing this limitation can be longer term solution for this issue. Sure, the limit comes from a too low value in RTE_MP_MAX_FD_NUM (8) It should have been set to the max Linux supports which is SCM_MAX_FD (253). But fixing it their breaks the ABI, and needs to wait for 24.11. Impacts AF_XDP as well. By not duplicating we can make TAP work with 8 queues and still get MP support. Good idea anyway not to waste fd's. > > > Bugzilla ID: 1381 > > Signed-off-by: Stephen Hemminger <step...@networkplumber.org> > > > > Can you please move the relevant release notes update to this patch? > So we can distribute the release notes update to patches instead of > dedicated update for it. > > Except from above change, > Acked-by: Ferruh Yigit <ferruh.yi...@amd.com> >
