netdev - [PATCH net] net/mlx5_core: Fix configuration of log_uar_page

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Message-ID: <20150211144038.GA18543@mtldesk30>
Date:	Wed, 11 Feb 2015 16:40:38 +0200
From:	Eli Cohen <eli@....mellanox.co.il>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, clsoto@...ibm.com, ogerlitz@...lanox.com
Subject: [PATCH net] net/mlx5_core: Fix configuration of log_uar_page_sz

The current code failed to configure the page size for architectures with page
size different than 4K - PPC for example.

Signed-off-by: Carol L Soto <clsoto@...ibm.com>
Signed-off-by: Eli Cohen <eli@...lanox.com>
---

Hi Dave,

this patch fixes a problem in powerpc with 64K page size

Eli

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

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 3a85904932e7..52d3afd6d548 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -290,6 +290,7 @@ static void copy_rw_fields(void *to, struct mlx5_caps *from)
 	MLX5_SET(cmd_hca_cap, to, log_max_ra_req_dc, from->gen.log_max_ra_req_dc);
 	MLX5_SET(cmd_hca_cap, to, log_max_ra_res_dc, from->gen.log_max_ra_res_dc);
 	MLX5_SET(cmd_hca_cap, to, pkey_table_size, to_fw_pkey_sz(from->gen.pkey_table_size));
+	MLX5_SET(cmd_hca_cap, to, log_uar_page_sz, PAGE_SHIFT - 12);
 	v64 = from->gen.flags & MLX5_CAP_BITS_RW_MASK;
 	*flags_off = cpu_to_be64(v64);
 }
-- 
2.3.0

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