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authorAmir Vadai <amirv@mellanox.com>2013-04-23 10:06:49 +0400
committerDavid S. Miller <davem@davemloft.net>2013-04-25 00:30:14 +0400
commitec693d47010e8302e61e0bdf3f47496c5610641a (patch)
tree8fbcfe632cb618318dcb1c9a9050afd025462b0a /drivers/net/ethernet/mellanox/mlx4/en_main.c
parentddd8a6c12d7e494902a9435a9a7a543ef730b2d8 (diff)
downloadlinux-ec693d47010e8302e61e0bdf3f47496c5610641a.tar.xz
net/mlx4_en: Add HW timestamping (TS) support
The patch allows to enable/disable HW timestamping for incoming and/or outgoing packets. It adds and initializes all structs and callbacks needed by kernel TS API. To enable/disable HW timestamping appropriate ioctl should be used. Currently HWTSTAMP_FILTER_ALL/NONE and HWTSAMP_TX_ON/OFF only are supported. When enabling TS on receive flow - VLAN stripping will be disabled. Also were made all relevant changes in RX/TX flows to consider TS request and plant HW timestamps into relevant structures. mlx4_ib was fixed to compile with new mlx4_cq_alloc() signature. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_main.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_main.c b/drivers/net/ethernet/mellanox/mlx4/en_main.c
index fc27800e9c38..a5c9df07a7d0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_main.c
@@ -300,6 +300,11 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i]))
mdev->pndev[i] = NULL;
}
+
+ /* Initialize time stamp mechanism */
+ if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
+ mlx4_en_init_timestamp(mdev);
+
return mdev;
err_mr: