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e126ba97 EC |
1 | /* |
2 | * Copyright (c) 2013, Mellanox Technologies inc. 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/mlx5/driver.h> | |
34 | #include <linux/mlx5/cmd.h> | |
35 | #include <linux/module.h> | |
36 | #include "mlx5_core.h" | |
37 | ||
38 | int mlx5_cmd_query_adapter(struct mlx5_core_dev *dev) | |
39 | { | |
40 | struct mlx5_cmd_query_adapter_mbox_out *out; | |
41 | struct mlx5_cmd_query_adapter_mbox_in in; | |
42 | int err; | |
43 | ||
44 | out = kzalloc(sizeof(*out), GFP_KERNEL); | |
45 | if (!out) | |
46 | return -ENOMEM; | |
47 | ||
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)); | |
51 | if (err) | |
52 | goto out_out; | |
53 | ||
54 | if (out->hdr.status) { | |
55 | err = mlx5_cmd_status_to_err(&out->hdr); | |
56 | goto out_out; | |
57 | } | |
58 | ||
59 | memcpy(dev->board_id, out->vsd_psid, sizeof(out->vsd_psid)); | |
60 | ||
61 | out_out: | |
62 | kfree(out); | |
63 | ||
64 | return err; | |
65 | } | |
66 | ||
67 | int mlx5_cmd_query_hca_cap(struct mlx5_core_dev *dev, | |
68 | struct mlx5_caps *caps) | |
69 | { | |
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; | |
74 | int err; | |
75 | u16 t16; | |
76 | ||
77 | out = kzalloc(sizeof(*out), GFP_KERNEL); | |
78 | if (!out) | |
79 | return -ENOMEM; | |
80 | ||
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)); | |
85 | if (err) | |
86 | goto out_out; | |
87 | ||
88 | if (out->hdr.status) { | |
89 | err = mlx5_cmd_status_to_err(&out->hdr); | |
90 | goto out_out; | |
91 | } | |
92 | ||
93 | ||
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); | |
107 | err = -EINVAL; | |
108 | goto out_out; | |
109 | } | |
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; | |
0a324f31 | 116 | caps->max_qp_mcg = be32_to_cpu(out->hca_cap.max_qp_mcg) & 0xffffff; |
e126ba97 EC |
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); | |
121 | if (t16 & 0x8000) { | |
122 | caps->bf_reg_size = 1 << (t16 & 0x1f); | |
123 | caps->bf_regs_per_page = MLX5_BF_REGS_PER_PAGE; | |
124 | } else { | |
125 | caps->bf_reg_size = 0; | |
126 | caps->bf_regs_per_page = 0; | |
127 | } | |
128 | caps->min_page_sz = ~(u32)((1 << out->hca_cap.log_pg_sz) - 1); | |
129 | ||
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)); | |
135 | if (err) | |
136 | goto out_out; | |
137 | ||
138 | if (ctx_out.hdr.status) | |
139 | err = mlx5_cmd_status_to_err(&ctx_out.hdr); | |
140 | ||
141 | caps->reserved_lkey = be32_to_cpu(ctx_out.reserved_lkey); | |
142 | ||
143 | out_out: | |
144 | kfree(out); | |
145 | ||
146 | return err; | |
147 | } | |
148 | ||
149 | int mlx5_cmd_init_hca(struct mlx5_core_dev *dev) | |
150 | { | |
151 | struct mlx5_cmd_init_hca_mbox_in in; | |
152 | struct mlx5_cmd_init_hca_mbox_out out; | |
153 | int err; | |
154 | ||
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)); | |
159 | if (err) | |
160 | return err; | |
161 | ||
162 | if (out.hdr.status) | |
163 | err = mlx5_cmd_status_to_err(&out.hdr); | |
164 | ||
165 | return err; | |
166 | } | |
167 | ||
168 | int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev) | |
169 | { | |
170 | struct mlx5_cmd_teardown_hca_mbox_in in; | |
171 | struct mlx5_cmd_teardown_hca_mbox_out out; | |
172 | int err; | |
173 | ||
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)); | |
178 | if (err) | |
179 | return err; | |
180 | ||
181 | if (out.hdr.status) | |
182 | err = mlx5_cmd_status_to_err(&out.hdr); | |
183 | ||
184 | return err; | |
185 | } |