Date: Thu, 30 Nov 2006 09:51:19 -0700 From: "Kirk Davis" <Kirk.Davis@epsb.ca> To: "David Christensen" <davidch@broadcom.com> Cc: freebsd-net@freebsd.org Subject: RE: Broadcom (bce) support and POLLING Message-ID: <04C71268DFDAA8499EC1A248A44B6A2B0855B165@Exchange21.EDU.epsb.ca>
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Hi, > Polling is not currently supported in the bce driver. OK. That would explain it. The man page for polling lists the bce interface as a supported interface so I just assumed that it would work. Does anyone know if someone is working on polling support for the bce interfaces in a Dell 2950? > > Hi, > > We have just upgraded to a Dell 2950 for our main BGP router. > > With the constant rise in traffic through the box, I have started to > > notice some dropped packets so I figured I would take a look > > at putting > > the interfaces into polling more to squeeze a little more packets > > through them. > > > > I have added the DEVICE_POLLING and HZ=1000 to the kernel. I > > turned on polling for the bce interfaces and they pass > traffic at low > > volumes (like ping tests). If I put my fluke traffic generators on > > either side of the box and try to ramp it up to even 100Mb > > (they are Gig > > links) then the interfaces will stop responding. Turning > off polling > > will get them to respond again. > > > > I know that the bce support in still quite new. Has anyone else > > testing with polling and the bce interfaces? Is there any more > > information that I can get for the developers to help track > this down. > > The system is not in production right now so I can use it > for testing. > > > > As another note... I added some Intel (em) cards into the box > > and tested with them. Polling worked great on them but I was > > only able > > to get about 200k packets per second before it starts > > dropping packets. > > Is this about what I should expect? > > > > [root@ ~]# uname -a > > FreeBSD 6.2-RC1 FreeBSD 6.2-RC1 #2: Tue Nov 28 18:10:56 MST 2006 > > root@:/usr/obj/usr/src/sys/INET-GW i386 > > > > ---- Kirk > > > > > > > > _______________________________________________ > > freebsd-net@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-net > > To unsubscribe, send any mail to > "freebsd-net-unsubscribe@freebsd.org" > > > > > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >help
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