2 * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
33 #include <linux/mlx5/driver.h>
34 #include <linux/mlx5/cmd.h>
35 #include <linux/module.h>
36 #include "mlx5_core.h"
38 int mlx5_cmd_query_adapter(struct mlx5_core_dev
*dev
)
40 struct mlx5_cmd_query_adapter_mbox_out
*out
;
41 struct mlx5_cmd_query_adapter_mbox_in in
;
44 out
= kzalloc(sizeof(*out
), GFP_KERNEL
);
48 memset(&in
, 0, sizeof(in
));
49 in
.hdr
.opcode
= cpu_to_be16(MLX5_CMD_OP_QUERY_ADAPTER
);
50 err
= mlx5_cmd_exec(dev
, &in
, sizeof(in
), out
, sizeof(*out
));
54 if (out
->hdr
.status
) {
55 err
= mlx5_cmd_status_to_err(&out
->hdr
);
59 memcpy(dev
->board_id
, out
->vsd_psid
, sizeof(out
->vsd_psid
));
67 int mlx5_cmd_query_hca_cap(struct mlx5_core_dev
*dev
,
68 struct mlx5_caps
*caps
)
70 struct mlx5_cmd_query_hca_cap_mbox_out
*out
;
71 struct mlx5_cmd_query_hca_cap_mbox_in in
;
72 struct mlx5_query_special_ctxs_mbox_out ctx_out
;
73 struct mlx5_query_special_ctxs_mbox_in ctx_in
;
77 out
= kzalloc(sizeof(*out
), GFP_KERNEL
);
81 memset(&in
, 0, sizeof(in
));
82 in
.hdr
.opcode
= cpu_to_be16(MLX5_CMD_OP_QUERY_HCA_CAP
);
83 in
.hdr
.opmod
= cpu_to_be16(0x1);
84 err
= mlx5_cmd_exec(dev
, &in
, sizeof(in
), out
, sizeof(*out
));
88 if (out
->hdr
.status
) {
89 err
= mlx5_cmd_status_to_err(&out
->hdr
);
94 caps
->log_max_eq
= out
->hca_cap
.log_max_eq
& 0xf;
95 caps
->max_cqes
= 1 << out
->hca_cap
.log_max_cq_sz
;
96 caps
->max_wqes
= 1 << out
->hca_cap
.log_max_qp_sz
;
97 caps
->max_sq_desc_sz
= be16_to_cpu(out
->hca_cap
.max_desc_sz_sq
);
98 caps
->max_rq_desc_sz
= be16_to_cpu(out
->hca_cap
.max_desc_sz_rq
);
99 caps
->flags
= be64_to_cpu(out
->hca_cap
.flags
);
100 caps
->stat_rate_support
= be16_to_cpu(out
->hca_cap
.stat_rate_support
);
101 caps
->log_max_msg
= out
->hca_cap
.log_max_msg
& 0x1f;
102 caps
->num_ports
= out
->hca_cap
.num_ports
& 0xf;
103 caps
->log_max_cq
= out
->hca_cap
.log_max_cq
& 0x1f;
104 if (caps
->num_ports
> MLX5_MAX_PORTS
) {
105 mlx5_core_err(dev
, "device has %d ports while the driver supports max %d ports\n",
106 caps
->num_ports
, MLX5_MAX_PORTS
);
110 caps
->log_max_qp
= out
->hca_cap
.log_max_qp
& 0x1f;
111 caps
->log_max_mkey
= out
->hca_cap
.log_max_mkey
& 0x3f;
112 caps
->log_max_pd
= out
->hca_cap
.log_max_pd
& 0x1f;
113 caps
->log_max_srq
= out
->hca_cap
.log_max_srqs
& 0x1f;
114 caps
->local_ca_ack_delay
= out
->hca_cap
.local_ca_ack_delay
& 0x1f;
115 caps
->log_max_mcg
= out
->hca_cap
.log_max_mcg
;
116 caps
->max_qp_mcg
= be32_to_cpu(out
->hca_cap
.max_qp_mcg
) & 0xffffff;
117 caps
->max_ra_res_qp
= 1 << (out
->hca_cap
.log_max_ra_res_qp
& 0x3f);
118 caps
->max_ra_req_qp
= 1 << (out
->hca_cap
.log_max_ra_req_qp
& 0x3f);
119 caps
->max_srq_wqes
= 1 << out
->hca_cap
.log_max_srq_sz
;
120 t16
= be16_to_cpu(out
->hca_cap
.bf_log_bf_reg_size
);
122 caps
->bf_reg_size
= 1 << (t16
& 0x1f);
123 caps
->bf_regs_per_page
= MLX5_BF_REGS_PER_PAGE
;
125 caps
->bf_reg_size
= 0;
126 caps
->bf_regs_per_page
= 0;
128 caps
->min_page_sz
= ~(u32
)((1 << out
->hca_cap
.log_pg_sz
) - 1);
130 memset(&ctx_in
, 0, sizeof(ctx_in
));
131 memset(&ctx_out
, 0, sizeof(ctx_out
));
132 ctx_in
.hdr
.opcode
= cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS
);
133 err
= mlx5_cmd_exec(dev
, &ctx_in
, sizeof(ctx_in
),
134 &ctx_out
, sizeof(ctx_out
));
138 if (ctx_out
.hdr
.status
)
139 err
= mlx5_cmd_status_to_err(&ctx_out
.hdr
);
141 caps
->reserved_lkey
= be32_to_cpu(ctx_out
.reserved_lkey
);
149 int mlx5_cmd_init_hca(struct mlx5_core_dev
*dev
)
151 struct mlx5_cmd_init_hca_mbox_in in
;
152 struct mlx5_cmd_init_hca_mbox_out out
;
155 memset(&in
, 0, sizeof(in
));
156 memset(&out
, 0, sizeof(out
));
157 in
.hdr
.opcode
= cpu_to_be16(MLX5_CMD_OP_INIT_HCA
);
158 err
= mlx5_cmd_exec(dev
, &in
, sizeof(in
), &out
, sizeof(out
));
163 err
= mlx5_cmd_status_to_err(&out
.hdr
);
168 int mlx5_cmd_teardown_hca(struct mlx5_core_dev
*dev
)
170 struct mlx5_cmd_teardown_hca_mbox_in in
;
171 struct mlx5_cmd_teardown_hca_mbox_out out
;
174 memset(&in
, 0, sizeof(in
));
175 memset(&out
, 0, sizeof(out
));
176 in
.hdr
.opcode
= cpu_to_be16(MLX5_CMD_OP_TEARDOWN_HCA
);
177 err
= mlx5_cmd_exec(dev
, &in
, sizeof(in
), &out
, sizeof(out
));
182 err
= mlx5_cmd_status_to_err(&out
.hdr
);