[ 37/75] IB/srpt: Set srq_type to IB_SRQT_BASIC

From: Greg KH
Date: Thu Apr 19 2012 - 17:06:51 EST

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


From: Roland Dreier <roland@xxxxxxxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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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