We have it enabled in the BIOS. I doubt that ioatdma and dca would get loaded if we hadn't!
I think there's probably a bug with the older ixgbe drivers (and possibly the kernel). As I said, I don't get the DCA error message with ixgbe-3.3.9 and later, though I'm not sure how I can prove that DCA is working. Unfortunately, patching ixgbe-3.6.7 is a bit beyond me, I think, as quite a bit seems to have changed and getting the FlowDirector stuff in would be hard. (I did patch the latest e1000e-1.6.3 successfully, but that's comparatively simple!) Unfortunately I can't test live traffic at the moment as we've had to disable our 10GB port mirrors due to a switch problem which we're waiting on our suppliers to solve. Best Wishes, Chris On 01/11/11 16:53, [email protected] wrote: > Chris, > > You need to switch DCA on in the BIOS, the dmesg message about DCA should > disappear if its working, my Dell R710 was off by default in the BIOS. > > Andrew > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Luca Deri > Sent: Monday, October 24, 2011 8:20 PM > To: [email protected] > Subject: Re: [Ntop-misc] ixgbe and DCA > > Chris > i believe DCA is a feature of your chipset, so your hw must support it and > this should be your case. The problem with Dell's is that in some cases BIOS > disables it. > > We'll definitively update the drivers to the latest version as soon as we > have some time, but I doubt this will change anything > > Luca > -- --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- Christopher Wakelin, [email protected] IT Services Centre, The University of Reading, Tel: +44 (0)118 378 2908 Whiteknights, Reading, RG6 6AF, UK Fax: +44 (0)118 975 3094 _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
