drivers/net/ethernet/mellanox/mlx5/core/vport.c

   1 /*
   2  * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/export.h>
  34 #include <linux/etherdevice.h>
  35 #include <linux/mlx5/driver.h>
  36 #include "vport.h"
  37 #include "mlx5_core.h"
  38
  39 u8 mlx5_query_vport_state(struct mlx5_core_dev *mdev, u8 opmod)
  40 {
  41         u32 in[MLX5_ST_SZ_DW(query_vport_state_in)];
  42         u32 out[MLX5_ST_SZ_DW(query_vport_state_out)];
  43         int err;
  44
  45         memset(in, 0, sizeof(in));
  46
  47         MLX5_SET(query_vport_state_in, in, opcode,
  48                  MLX5_CMD_OP_QUERY_VPORT_STATE);
  49         MLX5_SET(query_vport_state_in, in, op_mod, opmod);
  50
  51         err = mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out,
  52                                          sizeof(out));
  53         if (err)
  54                 mlx5_core_warn(mdev, "MLX5_CMD_OP_QUERY_VPORT_STATE failed\n");
  55
  56         return MLX5_GET(query_vport_state_out, out, state);
  57 }
  58
  59 void mlx5_query_vport_mac_address(struct mlx5_core_dev *mdev, u8 *addr)
  60 {
  61         u32  in[MLX5_ST_SZ_DW(query_nic_vport_context_in)];
  62         u32 *out;
  63         int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out);
  64         u8 *out_addr;
  65
  66         out = mlx5_vzalloc(outlen);
  67         if (!out)
  68                 return;
  69
  70         out_addr = MLX5_ADDR_OF(query_nic_vport_context_out, out,
  71                                 nic_vport_context.permanent_address);
  72
  73         memset(in, 0, sizeof(in));
  74
  75         MLX5_SET(query_nic_vport_context_in, in, opcode,
  76                  MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT);
  77
  78         memset(out, 0, outlen);
  79         mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
  80
  81         ether_addr_copy(addr, &out_addr[2]);
  82
  83         kvfree(out);
  84 }