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authorAmir Vadai <amirv@mellanox.com>2013-04-25 05:22:23 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-26 23:29:13 -0400
commit30b40c31c2eeaa9188b09c3fd1230b90b2d1823b (patch)
treecc3d4be8f9c54382eeb3dfbd19c3f421d1c6ca27
parent50754d2188b04a679a249fb57751542643a436e0 (diff)
net/mlx4_core: Disable HW timestamping for VFs
Disable timestamp capability on virtual functions. Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/fw.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 6776c257bd3..1f6c3e9128e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -784,6 +784,11 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
+ /* For guests, disable timestamp */
+ MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
+ field &= 0x7f;
+ MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
+
/* For guests, report Blueflame disabled */
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
field &= 0x7f;