From 73f5a82bb3c9fce550da4a74a32b8cb064b50663 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Sun, 13 Jan 2019 15:57:04 +0200 Subject: RDMA/mad: Reduce MAD scope to mlx5_ib only Management Datagram Interface (MAD) is applicable only when physical port is Infiniband. It makes MAD command logic to be completely unrelated to eth/core parts of mlx5. Signed-off-by: Leon Romanovsky Acked-by: Jason Gunthorpe --- drivers/infiniband/hw/mlx5/cmd.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'drivers/infiniband/hw/mlx5/cmd.c') diff --git a/drivers/infiniband/hw/mlx5/cmd.c b/drivers/infiniband/hw/mlx5/cmd.c index 356bccc715ee..6bcc63aaa50b 100644 --- a/drivers/infiniband/hw/mlx5/cmd.c +++ b/drivers/infiniband/hw/mlx5/cmd.c @@ -345,3 +345,40 @@ int mlx5_cmd_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id, counter_set_id); return err; } + +int mlx5_cmd_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, + u16 opmod, u8 port) +{ + int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out); + int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in); + int err = -ENOMEM; + void *data; + void *resp; + u32 *out; + u32 *in; + + in = kzalloc(inlen, GFP_KERNEL); + out = kzalloc(outlen, GFP_KERNEL); + if (!in || !out) + goto out; + + MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC); + MLX5_SET(mad_ifc_in, in, op_mod, opmod); + MLX5_SET(mad_ifc_in, in, port, port); + + data = MLX5_ADDR_OF(mad_ifc_in, in, mad); + memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad)); + + err = mlx5_cmd_exec(dev, in, inlen, out, outlen); + if (err) + goto out; + + resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet); + memcpy(outb, resp, + MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet)); + +out: + kfree(out); + kfree(in); + return err; +} -- cgit v1.2.3