net/mlx4: Strengthen VLAN tags/priorities enforcement in VST mode

Make sure that the following steps are taken:

- drop packets sent by the VF with vlan tag
- block packets with vlan tag which are steered to the VF
- drop/block tagged packets when the policy is priority-tagged
- make sure VLAN stripping for received packets is set
- make sure force UP bit for the VF QP is set

Use enum values for all the above instead of numerical bit offsets.

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 27 insertions, 2 deletions

diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 67f46ad6920a..352eec9df1b8 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -126,7 +126,7 @@ struct mlx4_rss_context {
 
 struct mlx4_qp_path {
         u8                      fl;
-        u8                      reserved1[1];
+        u8                      vlan_control;
         u8                      disable_pkey_check;
         u8                      pkey_index;
         u8                      counter_index;
@@ -141,11 +141,32 @@ struct mlx4_qp_path {
         u8                      sched_queue;
         u8                      vlan_index;
         u8                      feup;
-        u8                      reserved3;
+        u8                      fvl_rx;
         u8                      reserved4[2];
         u8                      dmac[6];
 };
 
+enum { /* fl */
+        MLX4_FL_CV      = 1 << 6,
+        MLX4_FL_ETH_HIDE_CQE_VLAN       = 1 << 2
+};
+enum { /* vlan_control */
+        MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED      = 1 << 6,
+        MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED      = 1 << 2,
+        MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED = 1 << 1, /* 802.1p priority tag */
+        MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED    = 1 << 0
+};
+
+enum { /* feup */
+        MLX4_FEUP_FORCE_ETH_UP          = 1 << 6, /* force Eth UP */
+        MLX4_FSM_FORCE_ETH_SRC_MAC      = 1 << 5, /* force Source MAC */
+        MLX4_FVL_FORCE_ETH_VLAN         = 1 << 3  /* force Eth vlan */
+};
+
+enum { /* fvl_rx */
+        MLX4_FVL_RX_FORCE_ETH_VLAN      = 1 << 0 /* enforce Eth rx vlan */
+};
+
 struct mlx4_qp_context {
         __be32                  flags;
         __be32                  pd;
@@ -185,6 +206,10 @@ struct mlx4_qp_context {
         u32                     reserved5[10];
 };
 
+enum { /* param3 */
+        MLX4_STRIP_VLAN = 1 << 30
+};
+
 /* Which firmware version adds support for NEC (NoErrorCompletion) bit */
 #define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)