iPXE
mlx_mtu.c
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1 /*
2  * Copyright (C) 2015 Mellanox Technologies Ltd.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  */
19 
20 FILE_LICENCE ( GPL2_OR_LATER );
21 
22 #include "mlx_mtu.h"
23 #include "../../include/public/mlx_memory.h"
24 #include "../../include/public/mlx_bail.h"
25 
28  IN mlx_utils *utils,
30  OUT mlx_uint32 *max_mtu
31  )
32 {
34  struct mlx_mtu mtu;
35  mlx_uint32 reg_status;
36  *max_mtu = 0;
37 
38  if (utils == NULL) {
40  goto bad_param;
41  }
42 
43  mlx_memory_set(utils, &mtu, 0, sizeof(mtu));
44 
45  mtu.local_port = port_num;
46 
48  sizeof(mtu), &reg_status);
49  MLX_CHECK_STATUS(utils, status, reg_err, "mlx_reg_access failed ");
50  if (reg_status != 0) {
51  MLX_DEBUG_ERROR(utils,"mlx_reg_access failed with status = %d\n", reg_status);
53  goto reg_err;
54  }
55  // Return data in bits
56  *max_mtu = mtu.max_mtu * BYTE_TO_BIT;
57 reg_err:
58 bad_param:
59  return status;
60 }
61 
64  IN mlx_utils *utils,
67  )
68 {
70  struct mlx_mtu mtu;
71  mlx_uint32 reg_status;
72 
73  if (utils == NULL) {
75  goto bad_param;
76  }
77 
78  mlx_memory_set(utils, &mtu, 0, sizeof(mtu));
79 
80  mtu.local_port = port_num;
81  mtu.admin_mtu = admin_mtu;
82 
84  sizeof(mtu), &reg_status);
85  MLX_CHECK_STATUS(utils, status, reg_err, "mlx_reg_access failed ");
86  if (reg_status != 0) {
87  MLX_DEBUG_ERROR(utils,"mlx_reg_access failed with status = %d\n", reg_status);
89  goto reg_err;
90  }
91 reg_err:
92 bad_param:
93  return status;
94 }
#define BYTE_TO_BIT
Definition: mlx_mtu.h:28
#define MLX_INVALID_PARAMETER
#define REG_ID_PMTU
mlx_uint32 admin_mtu
Definition: mlx_mtu.h:39
mlx_status mlx_get_max_mtu(IN mlx_utils *utils, IN mlx_uint8 port_num, OUT mlx_uint32 *max_mtu)
Definition: mlx_mtu.c:27
uint8_t status
Status.
Definition: ena.h:16
uint32_t mlx_uint32
mlx_status mlx_memory_set(IN mlx_utils *utils, IN mlx_void *block, IN mlx_int32 value, IN mlx_size size)
Definition: mlx_memory.c:171
#define OUT
Definition: mlx_utils.h:29
#define MLX_SUCCESS
#define MLX_FAILED
mlx_status mlx_set_admin_mtu(IN mlx_utils *utils, IN mlx_uint8 port_num, IN mlx_uint32 admin_mtu)
Definition: mlx_mtu.c:63
#define IN
Definition: mlx_utils.h:28
__be16 port_num
Definition: CIB_PRM.h:31
FILE_LICENCE(GPL2_OR_LATER)
uint8_t mlx_uint8
mlx_uint32 max_mtu
Definition: mlx_mtu.h:36
uint32_t mtu
Maximum MTU.
Definition: ena.h:28
#define MLX_DEBUG_ERROR(...)
Definition: mlx_logging.h:29
int mlx_status
mlx_status mlx_reg_access(IN mlx_utils *utils, IN mlx_uint16 reg_id, IN REG_ACCESS_OPT reg_opt, IN OUT mlx_void *reg_data, IN mlx_size reg_size, OUT mlx_uint32 *reg_status)
#define MLX_CHECK_STATUS(id, status, label, message)
Definition: mlx_bail.h:37
#define NULL
NULL pointer (VOID *)
Definition: Base.h:362