RE: [PATCH infiniband-diags 2/2] smpdump.c: Print number of bytes returned by umad_recv

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> 
> On 2/7/2018 12:35 AM, ira.weiny wrote:
> > On Mon, Dec 11, 2017 at 09:57:23AM -0500, Hal Rosenstock wrote:
> >>
> >> Signed-off-by: Hal Rosenstock <hal@xxxxxxxxxxxx>
> >> ---
> >>  src/smpdump.c | 2 ++
> >>  1 file changed, 2 insertions(+)
> >>
> >> diff --git a/src/smpdump.c b/src/smpdump.c index bc8559a..bb304d4
> >> 100644
> >> --- a/src/smpdump.c
> >> +++ b/src/smpdump.c
> >> @@ -281,6 +281,8 @@ int main(int argc, char *argv[])
> >>  	if (umad_recv(portid, umad, &length, -1) != mad_agent)
> >>  		IBPANIC("recv error: %s", strerror(errno));
> >>
> >> +	printf("%d bytes received\n", length);
> >
> > This seems like it is more for debugging.
> 
> I don't recall now what the case was exactly where umad_recv succeeded but it
> was unclear whether the data was valid or not. In that sense, it's a missing part of
> the current information returned.
> 
> I think this command geared at manual debug of attribute IDs not supported in
> smpquery.
> 
> > How will this affect any scripts which include this command?
> 
> AFAIK there are no such scripts.
> 
> > Should we make this debug output?
> 
> That's probably better/safer and at least provides a way to obtain the proposed
> added information.
> 
> Do you want an updated patch for this ?

Yes please,
Ira


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