From 64599cca51de08cef94bc13a0f98351e5bb01f41 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 2 Apr 2015 17:07:25 +0300
Subject: net/mlx5_core: Use coherent memory for command interface page

Use coherent memory for the commands descriptor page. Take measures to make
sure the page is aligned to MLX5_ADAPTER_PAGE_SIZE as required by the hardware.

Reported-by: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/mlx5/driver.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 166d9315fe4b..8d8ca6d9b03b 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -232,6 +232,9 @@ struct mlx5_cmd_stats {
 };
 
 struct mlx5_cmd {
+	void	       *cmd_alloc_buf;
+	dma_addr_t	alloc_dma;
+	int		alloc_size;
 	void	       *cmd_buf;
 	dma_addr_t	dma;
 	u16		cmdif_rev;
-- 
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