Patch "net/mlx5: Define interface bits for fencing UMR wqe" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

net/mlx5: Define interface bits for fencing UMR wqe

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-mlx5-define-interface-bits-for-fencing-umr-wqe.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Max Gurtovoy <[email protected]>
Date: Sun, 28 May 2017 10:53:10 +0300
Subject: net/mlx5: Define interface bits for fencing UMR wqe

From: Max Gurtovoy <[email protected]>

commit 1410a90ae449061b7e1ae19d275148f36948801b upstream.

HW can implement UMR wqe re-transmission in various ways. Thus, add HCA cap to distinguish the needed fence for UMR to make sure that the wqe wouldn't fail on mkey checks.

---
 include/linux/mlx5/mlx5_ifc.h |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

@@ -737,6 +737,12 @@ enum {
 	MLX5_CAP_PORT_TYPE_ETH = 0x1,
 };
 
+enum {
+	MLX5_CAP_UMR_FENCE_STRONG	= 0x0,
+	MLX5_CAP_UMR_FENCE_SMALL	= 0x1,
+	MLX5_CAP_UMR_FENCE_NONE		= 0x2,
+};
+
 struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         reserved_at_0[0x80];
 

@@ -838,7 +844,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         striding_rq[0x1];
 	u8         reserved_at_201[0x2];
 	u8         ipoib_basic_offloads[0x1];
-	u8         reserved_at_205[0xa];
+	u8         reserved_at_205[0x5];
+	u8         umr_fence[0x2];
+	u8         reserved_at_20c[0x3];
 	u8         drain_sigerr[0x1];
 	u8         cmdif_checksum[0x2];
 	u8         sigerr_cqe[0x1];

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/net-mlx5-define-interface-bits-for-fencing-umr-wqe.patch queue-4.9/rdma-mlx5-set-umr-wqe-fence-according-to-hca-cap.patch