net/mlx4_core: Add basic elements for QCN

Add device capability, firmware command opcode and etc prior elements
needed for QCN suppprt. Disable SRIOV VF view/access for QCN is disabled.

While here, remove a redundant offset definition into the
QUERY_DEV_CAP mailbox.

Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 15 insertions, 1 deletions

diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index 7b6d4e9ff603..7299e9548906 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -163,6 +163,9 @@ enum {
         MLX4_QP_FLOW_STEERING_ATTACH = 0x65,
         MLX4_QP_FLOW_STEERING_DETACH = 0x66,
         MLX4_FLOW_STEERING_IB_UC_QP_RANGE = 0x64,
+
+        /* Update and read QCN parameters */
+        MLX4_CMD_CONGESTION_CTRL_OPCODE = 0x68,
 };
 
 enum {
@@ -233,6 +236,16 @@ struct mlx4_config_dev_params {
         u8      rx_csum_flags_port_2;
 };
 
+enum mlx4_en_congestion_control_algorithm {
+        MLX4_CTRL_ALGO_802_1_QAU_REACTION_POINT = 0,
+};
+
+enum mlx4_en_congestion_control_opmod {
+        MLX4_CONGESTION_CONTROL_GET_PARAMS,
+        MLX4_CONGESTION_CONTROL_GET_STATISTICS,
+        MLX4_CONGESTION_CONTROL_SET_PARAMS = 4,
+};
+
 struct mlx4_dev;
 
 struct mlx4_cmd_mailbox {
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index e4ebff7e9d02..1cc54822b931 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -203,7 +203,8 @@ enum {
         MLX4_DEV_CAP_FLAG2_80_VFS               = 1LL <<  18,
         MLX4_DEV_CAP_FLAG2_FS_A0                = 1LL <<  19,
         MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT = 1LL << 20,
-        MLX4_DEV_CAP_FLAG2_PORT_REMAP           = 1LL <<  21
+        MLX4_DEV_CAP_FLAG2_PORT_REMAP           = 1LL <<  21,
+        MLX4_DEV_CAP_FLAG2_QCN                  = 1LL <<  22,
 };
 
 enum {