[openib-general] RMPP Message Format Errors

[Hal Rosenstock]

Hi Eitan,

On Fri, 2005-09-16 at 06:02, Hal Rosenstock wrote:
> On Thu, 2005-09-15 at 04:01, Eitan Zahavi wrote:
> > Now lets go back to the test:
> > 
> > I use a machine connected through a single switch (IS3) to itself.
> > 
> > I use osmtest -f c to get Nodes,Ports and PathRecords from the SM.

> > Now I go to the SA client section:
> > 
> >  From osmtest log I see:
> > 
> > NodeInfoRec:
> > Aug 21 14:46:56 [4017F6C0] -> __osmv_send_sa_req: Waiting for async event.
> > Aug 21 14:46:56 [40D87BB0] -> osm_mad_pool_get: [
> > Aug 21 14:46:56 [40D87BB0] -> osm_vendor_get: [
> > Aug 21 14:46:56 [40D87BB0] -> osm_vendor_get: Acquiring UMAD for p_madw = 0x807b8a4, size = 256.
> > Aug 21 14:46:56 [40D87BB0] -> osm_vendor_get: Acquired UMAD 0x807c198, size = 256.
> > Aug 21 14:46:56 [40D87BB0] -> osm_vendor_get: ]
> > Aug 21 14:46:56 [40D87BB0] -> osm_mad_pool_get: Acquired p_madw = 0x807b898, p_mad = 0x807c1d0, size = 256.
> > Aug 21 14:46:56 [40D87BB0] -> osm_mad_pool_get: ]
> > Aug 21 14:46:56 [40D87BB0] -> __osmv_sa_mad_rcv_cb: [
> > Aug 21 14:46:56 [40D87BB0] -> __osmv_sa_mad_rcv_cb: Count = 1 = 200 / 112 (88)
> > Aug 21 14:46:56 [40D87BB0] -> osmtest_query_res_cb: [
> > Aug 21 14:46:56 [40D87BB0] -> osmtest_query_res_cb: ]
> > Aug 21 14:46:56 [40D87BB0] -> __osmv_sa_mad_rcv_cb: ]
> > I wonder how come the received MAD is only of 256 bytes. I expected it to be of headers + data = 56 + 336 = 392byte.

I see the problem: The 200 byte response is a short RMPP packet and the
length is not being properly handled in the OpenIB OpenSM vendor layer.
Patch for this shortly.

BTW, are you running with OpenSM from osm-1.8.0-merge or the trunk for
this ?

-- Hal