net/mlx5: Introduce alloc_encap and dealloc_encap commands
Implement low-level commands to support vxlan encapsulation.
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index e64499e..7aaefa9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -424,3 +424,51 @@
*packets = MLX5_GET64(traffic_counter, stats, packets);
*bytes = MLX5_GET64(traffic_counter, stats, octets);
}
+
+#define MAX_ENCAP_SIZE (128)
+
+int mlx5_cmd_alloc_encap(struct mlx5_core_dev *dev,
+ int header_type,
+ size_t size,
+ void *encap_header,
+ u32 *encap_id)
+{
+ u32 out[MLX5_ST_SZ_DW(alloc_encap_header_out)];
+ u32 in[MLX5_ST_SZ_DW(alloc_encap_header_in) +
+ (MAX_ENCAP_SIZE / sizeof(u32))];
+ void *encap_header_in = MLX5_ADDR_OF(alloc_encap_header_in, in,
+ encap_header);
+ void *header = MLX5_ADDR_OF(encap_header_in, encap_header_in,
+ encap_header);
+ int inlen = header - (void *)in + size;
+ int err;
+
+ if (size > MAX_ENCAP_SIZE)
+ return -EINVAL;
+
+ memset(in, 0, inlen);
+ MLX5_SET(alloc_encap_header_in, in, opcode,
+ MLX5_CMD_OP_ALLOC_ENCAP_HEADER);
+ MLX5_SET(encap_header_in, encap_header_in, encap_header_size, size);
+ MLX5_SET(encap_header_in, encap_header_in, header_type, header_type);
+ memcpy(header, encap_header, size);
+
+ memset(out, 0, sizeof(out));
+ err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
+
+ *encap_id = MLX5_GET(alloc_encap_header_out, out, encap_id);
+ return err;
+}
+
+void mlx5_cmd_dealloc_encap(struct mlx5_core_dev *dev, u32 encap_id)
+{
+ u32 in[MLX5_ST_SZ_DW(dealloc_encap_header_in)];
+ u32 out[MLX5_ST_SZ_DW(dealloc_encap_header_out)];
+
+ memset(in, 0, sizeof(in));
+ MLX5_SET(dealloc_encap_header_in, in, opcode,
+ MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
+ MLX5_SET(dealloc_encap_header_in, in, encap_id, encap_id);
+
+ mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}