On 20.12.2010 17:21, Shtorm wrote:
> I had this problem with igb driver, and I found, that lagg selects
> outgoing interface based on packet header flowid field if M_FLOWID field
> is set. And in the igb driver code flowid is set as
>
> #if __FreeBSD_version >= 800000
> <------><------><------>rxr->fmp->m_pkthdr.flowid = que->msix;
> <------><------><------>rxr->fmp->m_flags |= M_FLOWID;
> #endif
>
> The same thing in em driver with MULTIQUEUE
>
> That does not give enough number of flows to balance traffic well, so I
> commented check in if_lagg.c
>
> lagg_lb_start(struct lagg_softc *sc, struct mbuf *m)
> {
> <------>struct lagg_lb *lb = (struct lagg_lb *)sc->sc_psc;
> <------>struct lagg_port *lp = NULL;
> <------>uint32_t p = 0;
>
> //<---->if (m->m_flags & M_FLOWID)
> //<----><------>p = m->m_pkthdr.flowid;
> //<---->else
>
> and with this change I have much better load distribution across interfaces.
>
> Hope it helps.
Thanks, I'll try. I have em interfaces on lagg0 where problem is.
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
