From 575ddf5888eaf8f271cb3df7b0806cb2db2c333a Mon Sep 17 00:00:00 2001 From: Ilya Lesokhin Date: Tue, 23 Feb 2016 13:25:22 +0200 Subject: net/mlx5: Introduce alloc_encap and dealloc_encap commands Implement low-level commands to support vxlan encapsulation. Signed-off-by: Ilya Lesokhin Signed-off-by: Hadar Hen Zion Signed-off-by: Saeed Mahameed Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c | 48 ++++++++++++++++++++++++ 1 file changed, 48 insertions(+) (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c index e64499ebf2b5..7aaefa9aaf1c 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 @@ void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev, *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)); +} -- cgit v1.2.3-59-g8ed1b