On Thu, 7 Mar 2024 10:25:48 +0000 Ferruh Yigit <ferruh.yi...@amd.com> wrote:
> > I got 4 queues setup, but looks like they are trash in secondary. > > Probably best to revert this and fix it by bumping RTE_MP_MAX_FD_NUM. > > This is better, but does take some ABI issue handling. > > > > We can increase RTE_MP_MAX_FD_NUM but still there will be a limit. > > Can't it be possible to update 'rte_mp_sendmsg()' to support multiple > 'rte_mp_sendmsg()' calls in this patch? > > Also need to check if fds size is less than 'RTE_PMD_TAP_MAX_QUEUES' > with multiple 'rte_mp_sendmsg()' call support. Kernel allows up to 253 fd's to be passed. So for tap that would limit it to 126 queues; because TAP dups the fd's for rx and tx but that could be fixable. Tap should have a static assert about max queues and this as well. Increasing RTE_MP_MAX_FD_NUM would also fix similar issues in af_xdp PMD and when af_packet gets MP support.
