Patch "net/mlx5: Check FW limitations on log_max_qp before setting it" 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: Check FW limitations on log_max_qp before setting it

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-check-fw-limitations-on-log_max_qp-before-setting-it.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: Noa Osherovich <[email protected]>
Date: Wed, 28 Dec 2016 14:58:32 +0200
Subject: net/mlx5: Check FW limitations on log_max_qp before setting it

From: Noa Osherovich <[email protected]>

[ Upstream commit 883371c453b937f9eb581fb4915210865982736f ]

When setting HCA capabilities, set log_max_qp to be the minimum between the selected profile's value and the HCA limitation.

---
 drivers/net/ethernet/mellanox/mlx5/core/main.c |    7 +++++++
 1 file changed, 7 insertions(+)

@@ -468,6 +468,13 @@ static int handle_hca_cap(struct mlx5_co
 	MLX5_SET(cmd_hca_cap, set_hca_cap, pkey_table_size,
 		 to_fw_pkey_sz(dev, 128));
 
+	/* Check log_max_qp from HCA caps to set in current profile */
+	if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < profile[prof_sel].log_max_qp) {
+		mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
+			       profile[prof_sel].log_max_qp,
+			       MLX5_CAP_GEN_MAX(dev, log_max_qp));
+		profile[prof_sel].log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
+	}
 	if (prof->mask & MLX5_PROF_MASK_QP_SIZE)
 		MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp,
 			 prof->log_max_qp);

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

queue-4.9/net-mlx5-check-fw-limitations-on-log_max_qp-before-setting-it.patch