IB/mlx4: Add IPoIB LSO support

Add TSO support to the mlx4_ib driver.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 6cdf813cd478..ff7df1a2222f 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -186,6 +186,7 @@ struct mlx4_caps {
         u32                     flags;
         u16                     stat_rate_support;
         u8                      port_width_cap[MLX4_MAX_PORTS + 1];
+        int                     max_gso_sz;
 };
 
 struct mlx4_buf_list {
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 31f9eb3ccbb3..a5e43febee4f 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -219,6 +219,11 @@ struct mlx4_wqe_datagram_seg {
         __be32                  reservd[2];
 };
 
+struct mlx4_lso_seg {
+        __be32                  mss_hdr_size;
+        __be32                  header[0];
+};
+
 struct mlx4_wqe_bind_seg {
         __be32                  flags1;
         __be32                  flags2;