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From: "Guay Wei Lin" <weilin-S8y2klWGCOFhl2p70BpVqQ@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Questions on RTS->SQD
Date: Tue, 22 Dec 2009 10:56:57 +0100	[thread overview]
Message-ID: <000001ca82ed$1c67b8a0$553729e0$@no> (raw)
In-Reply-To: 

Hi, 

As for an experiment for my research to try out the SQD state, I've reused
the perftest code (send_bw.c) to modify the QP state from RTS->SQD, and
query_qp to make sure the QP is in the SQD state. The codes were added
before ibv_post_send function. (to make sure no outstanding WR in the SQ).
When the ibv_modify_qp is executed to modify QP from RTS->SQD, it returns a
0 without any error code, but when the ibv_query_qp to query on the
QP_state, the QP is still in RTS state. I'm using the mlx4 HCAs. Any
ideas/suggestions why this will happen or I miss out something?

Thanks,
Wei Lin
PhD student
Simula School of Research and Innovation AS 

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                 reply	other threads:[~2009-12-22  9:56 UTC|newest]

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