linux-kernel - [ 37/75] IB/srpt: Set srq_type to IB_SRQT

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Message-Id: <20120419210306.269894183@linuxfoundation.org>
Date:	Thu, 19 Apr 2012 14:03:40 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Alexey Shvetsov <alexxy@...too.org>,
	Roland Dreier <roland@...estorage.com>
Subject: [ 37/75] IB/srpt: Set srq_type to IB_SRQT_BASIC

3.3-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Roland Dreier <roland@...estorage.com>

commit 6f3603367b8f7c34598fdfc1058622e0e1951e98 upstream.

Since commit 96104eda0169 ("RDMA/core: Add SRQ type field"), kernel
users of SRQs need to specify srq_type = IB_SRQT_BASIC in struct
ib_srq_init_attr, or else most low-level drivers will fail in
when srpt_add_one() calls ib_create_srq() and gets -ENOSYS.

(mlx4_ib works OK nearly all of the time, because it just needs
srq_type != IB_SRQT_XRC.  And apparently nearly everyone using
ib_srpt is using mlx4 hardware)

Reported-by: Alexey Shvetsov <alexxy@...too.org>
Signed-off-by: Roland Dreier <roland@...estorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/infiniband/ulp/srpt/ib_srpt.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -3225,6 +3225,7 @@ static void srpt_add_one(struct ib_devic
 	srq_attr.attr.max_wr = sdev->srq_size;
 	srq_attr.attr.max_sge = 1;
 	srq_attr.attr.srq_limit = 0;
+	srq_attr.srq_type = IB_SRQT_BASIC;
 
 	sdev->srq = ib_create_srq(sdev->pd, &srq_attr);
 	if (IS_ERR(sdev->srq))


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