netdev - RE: [RFC 2/3] RDMA/cma: Add support for netlink statistics export

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Date:	Thu, 19 May 2011 18:35:39 +0000
From:	"Hefty, Sean" <sean.hefty@...el.com>
To:	Roland Dreier <roland@...nel.org>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
Subject: RE: [RFC 2/3] RDMA/cma: Add support for netlink statistics export

> Is there an easy way to get the qp_type from a struct rdma_cm_id?
> 
> ie what code needs to go into cma_get_id_stats() to handle this?

With the current code, you'd need to map from the port space:

static inline enum ib_qp_type cma_get_qp_type(struct rdma_cm_id *id)
{
	if (id->ps == RDMA_PS_IPOIB || id->ps == RDMA_PS_UDP)
		return IB_QPT_RC;
	else
		return IB_QPT_RC;
}

	..
	id_stats->qp_type = cma_get_qp_type(id);
	..

One of the patches in the af_ib patch set adds the qp_type to struct rdma_cm_id.  I'm guessing that patch will also be needed for xrc.

- Sean
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