[Fwd: Re: [openib-general] Solaris IPoIB MTU with OpenSM]

[Roland Dreier]

    Nitin> On other hand, on my linux node, if I try to use 8001
    Nitin> partition and configure IB interface with IP addr (same
    Nitin> time while ib0 is using 0xffff pkey), I get the following
    Nitin> error, you may want to investigate that....

I think this is probably an OpenSM issue (does OpenSM support multiple
partitions?).  On my fabric, running Topspin's embedded SM on a
switch, I can do:

    # modprobe ib_ipoib
    # echo 0x8001 > /sys/class/net/ib0/create_child
    # ifconfig ib0.8001 up

on both systems.  On system #1 I have:

    # ifconfig ib0.8001
    ib0.8001  Link encap:UNSPEC  HWaddr 00-13-04-06-FE-80-00-00-00-00-00-00-00-00-00-00
              inet6 addr: fe80::202:c901:7fc:c711/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:2044  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:128
              RX bytes:0 (0.0 b)  TX bytes:300 (300.0 b)

and on system #2 I'm able to do:

    # ping6 -I ib0.8001 fe80::202:c901:7fc:c711
    PING fe80::202:c901:7fc:c711(fe80::202:c901:7fc:c711) from fe80::202:c901:78c:e461 ib0.8001: 56 data bytes
    64 bytes from fe80::202:c901:7fc:c711: icmp_seq=1 ttl=64 time=4.56 ms
    64 bytes from fe80::202:c901:7fc:c711: icmp_seq=2 ttl=64 time=0.077 ms
    64 bytes from fe80::202:c901:7fc:c711: icmp_seq=3 ttl=64 time=0.065 ms

 - R.