[ewg] Can't snoop all kinds of mad packets

[Weiny, Ira]

Could you provide more information?

How are you using "snoop"?

Ib_register_mad_snoop does not appear to limit any of the classes which can be snooped.  Furthermore, the current kernel code does not have any callers to ib_register_mad_snoop that I can find.  Because of this I was contemplating submitting a patch to remove it's functionality.
To snoop mad packets on upstream kernels I have found system tap to be usefull.

Ira

From: ewg-bounces at lists.openfabrics.org [mailto:ewg-bounces at lists.openfabrics.org] On Behalf Of Yunzhao li
Sent: Monday, April 07, 2014 7:08 AM
To: ewg at lists.openfabrics.org
Subject: [ewg] Can't snoop all kinds of mad packets

We try to use IB MAD snoop to capture IB mad packets. However, currently only the classes of DevMgt (0x06) and ComMgt (0x07) could be snooped. We tried to run tests based on class Perf (0x04) and class Subn (0x01) mad, and neither of them can be captured. Any suggestion?

Thanks in advance!

Yunzhao

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