[Open-FCoE] Dump seen on target when initiater is enabled

Mithlesh mithlesh at linsyssoft.com
Tue Apr 8 10:45:00 UTC 2008


This problem was previously seen on 2.6.23 kernel and related FCoE setup which 
is described in the wikipage.

Could it be the case that CBD which is copied from the incoming FC frame have 
incorrect data ? The "cmd" parameter which is being passed between the 
functions and also ends up in scst_parse_cmd() is one which is copied from FC 
frame.

Also i am attaching the wireshark packets captured on initiator end. 

Regards,
Mithlesh Thukral

On Friday 04 April 2008 09:20:21 pm Zou, Yi wrote:
> >fc_local_port_recv_flogi_req: FLOGI from port WWPN 20000007e90acfce
> >[2835]: scst: scst_parse_cmd:541:***ERROR*** Expected data direction 0
>
> for
>
> >opcode 0x12 (handler dev_disk, target openfct) doesn't match decoded
>
> value
>
> >2
> >Failed CDB:
> > (h)___0__1__2__3__4__5__6__7__8__9__A__B__C__D__E__F
> >   0: 12 00 00 00 24 00   ....$.
>
> I myself haven't seen this, wonder if anyone else has seen the similar
> error? I also wonder what the last few packets on wireshark were when
> this happened.
>
> >[root at oort ~]#
> >
> >On the initiator side the fcconf shows following output:
> >
> >[root at hogwarts ~]# fcconf target
> >eth0 target ports:
> >FC ID     WWPN                     State      Role
> >010102    20:00:00:07:e9:0b:48:65  Online     FCP Target
> >[root at hogwarts ~]# fcconf eth0
> >Name          WWPN                      FC-ID   FC         Network
> >eth0          20:00:00:07:e9:0a:cf:ce    10101  Online     UP
> >[root at hogwarts ~]#
> >
> >But inspite of this i cant see the disks which are exported on target
>
> on
>
> >initiator.
>
> I assume you can still r/w to the target?
>
> >Is this some problem with the SCST or the target side code of FCoE ?
>
> I might be wrong but I feel it's in the target code. Still, we'll need
> some further investigation on this.
>
> Thanks.
> yi


-------------- next part --------------
A non-text attachment was scrubbed...
Name: wireshark_fcoe-08042008
Type: application/octet-stream
Size: 7200 bytes
Desc: not available
URL: <http://lists.open-fcoe.org/pipermail/fcoe-devel/attachments/20080408/e27d698d/attachment.obj>


More information about the devel mailing list