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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>
This commit is contained in:
Ilya Lesokhin 2016-02-23 13:25:22 +02:00 committed by Leon Romanovsky
parent 7adbde2035
commit 575ddf5888
3 changed files with 59 additions and 0 deletions
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4
drivers/net/ethernet/mellanox/mlx5/core/cmd.c
View File

@ -301,6 +301,7 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
case MLX5_CMD_OP_SET_FLOW_TABLE_ROOT:
case MLX5_CMD_OP_DEALLOC_ENCAP_HEADER:
return MLX5_CMD_STAT_OK;
case MLX5_CMD_OP_QUERY_HCA_CAP:
@ -402,6 +403,7 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
*status = MLX5_DRIVER_STATUS_ABORTED;
*synd = MLX5_DRIVER_SYND;
return -EIO;
@ -550,6 +552,8 @@ const char *mlx5_command_str(int command)
MLX5_COMMAND_STR_CASE(DEALLOC_FLOW_COUNTER);
MLX5_COMMAND_STR_CASE(QUERY_FLOW_COUNTER);
MLX5_COMMAND_STR_CASE(MODIFY_FLOW_TABLE);
MLX5_COMMAND_STR_CASE(ALLOC_ENCAP_HEADER);
MLX5_COMMAND_STR_CASE(DEALLOC_ENCAP_HEADER);
default: return "unknown command opcode";
}
}

48
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
View File

@ -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));
}

7
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h
View File

@ -88,4 +88,11 @@ void mlx5_cmd_fc_bulk_get(struct mlx5_core_dev *dev,
struct mlx5_cmd_fc_bulk *b, u16 id,
u64 *packets, u64 *bytes);
int mlx5_cmd_alloc_encap(struct mlx5_core_dev *dev,
int header_type,
size_t size,
void *encap_header,
u32 *encap_id);
void mlx5_cmd_dealloc_encap(struct mlx5_core_dev *dev, u32 encap_id);
#endif