> Finally I got a NIC that has a chip that does tagged status > block - 5701. > > I've prepared a patch, that mimics Linux. If a chip can do status tag, > then we write it to mailbox register at end of ISR, as you have > described. If the chip can't, then we force coalescing once > per second. > This should fix the problem correctly on the chips that support > status tag, and it is an ugly fix for chips that does not. > > Unfortunately, the attached patch doesn't fix the problem on 5701. The > wedge occurs as before. And I see status tag updated, while > the netperf > test has wedged: > > (kgdb) p $sc->bge_last_tag > $45 = 239 > (kgdb) p $sc->bge_last_tag > $46 = 240 > (kgdb) p $sc->bge_last_tag > $47 = 241 > (kgdb) p $sc->bge_last_tag > $48 = 242 > > I have no idea. :( May be you have one?
What's happening to the status block consumer/producer indices at this time? Are they advancing? Do they match the driver maintained consumer/producer indices? I forget if this was a send or receive problem, is the packet sitting in the send or receive return ring? Dave _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
