RE: [ofa-general] RE: OFED 1.2 beta blocking bugs
There are also IPoIB CM IP multicast problems, see bug 418. Bug 418 looks different than bug 400. From the bug report, it sounds like this error is limited to IPoIB CM mode. Is this correct? If you try to multicast packets 2KB, you see: I'm not sure if your hardware supports a max MTU of 2K, but in general I thought multicast would work up to 4K. Can you verify that the device MTU is higher than the packet size? ib0: failed send event (status=1, wrid=35 vend_err 69) It looks like this indicates a local length error on the send. ib_mthca :08:00.0: modify QP 3-3 returned status 10. ib0: failed to modify QP, ret = -22 ib0: couldn't attach QP to multicast group This looks like a RTS - RTS QP transition to set the QKey. I'm not sure what the ib_mthca status code of 10 is, but that may give us a hint at the problem. This error and the attach QP to multicast group error may be related. - Sean ___ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [ofa-general] RE: OFED 1.2 beta blocking bugs
Scott Weitzenkamp (sweitzen) wrote: Yes, it's limited to IPoIB CM. I'm talking about IP multicast not IB multicast, so the hardware MTU should be transparent. I'll reopen bug 418, who shall I assign it to? I think Michael owns the IPoIB CM code, so it should probable be assigned to him. I will look into it to see if there's an issue with the multicast code though. - Sean ___ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
RE: [ofa-general] RE: OFED 1.2 beta blocking bugs
On Thu, 2007-03-08 at 17:19, Scott Weitzenkamp (sweitzen) wrote: Yes, it's limited to IPoIB CM. I'm talking about IP multicast not IB multicast, so the hardware MTU should be transparent. Doesn't IPoIB CM only support IP unicast ? IP multicast should fall back to using normal IPoIB (UD) rather than CM (RC). -- Hal I'll reopen bug 418, who shall I assign it to? Scott -Original Message- From: Sean Hefty [mailto:[EMAIL PROTECTED] Sent: Thursday, March 08, 2007 2:10 PM To: Scott Weitzenkamp (sweitzen); Sean Hefty; Michael S. Tsirkin Cc: Pavel Shamis; [EMAIL PROTECTED]; general@lists.openfabrics.org; Vladimir Sokolovsky Subject: RE: [ofa-general] RE: OFED 1.2 beta blocking bugs There are also IPoIB CM IP multicast problems, see bug 418. Bug 418 looks different than bug 400. From the bug report, it sounds like this error is limited to IPoIB CM mode. Is this correct? If you try to multicast packets 2KB, you see: I'm not sure if your hardware supports a max MTU of 2K, but in general I thought multicast would work up to 4K. Can you verify that the device MTU is higher than the packet size? ib0: failed send event (status=1, wrid=35 vend_err 69) It looks like this indicates a local length error on the send. ib_mthca :08:00.0: modify QP 3-3 returned status 10. ib0: failed to modify QP, ret = -22 ib0: couldn't attach QP to multicast group This looks like a RTS - RTS QP transition to set the QKey. I'm not sure what the ib_mthca status code of 10 is, but that may give us a hint at the problem. This error and the attach QP to multicast group error may be related. - Sean ___ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
RE: [ofa-general] RE: OFED 1.2 beta blocking bugs
Doesn't IPoIB CM only support IP unicast ? IP multicast should fall back to using normal IPoIB (UD) rather than CM (RC). And that's the problem, it does not fallback. Scott ___ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
