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e126ba97 | 1 | /* |
302bdf68 | 2 | * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. |
e126ba97 EC |
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/kernel.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/mlx5/driver.h> | |
36 | #include <linux/mlx5/cmd.h> | |
37 | #include "mlx5_core.h" | |
38 | ||
a606b0f6 | 39 | void mlx5_init_mkey_table(struct mlx5_core_dev *dev) |
3bcdb17a | 40 | { |
a606b0f6 | 41 | struct mlx5_mkey_table *table = &dev->priv.mkey_table; |
3bcdb17a | 42 | |
a31208b1 | 43 | memset(table, 0, sizeof(*table)); |
3bcdb17a SG |
44 | rwlock_init(&table->lock); |
45 | INIT_RADIX_TREE(&table->tree, GFP_ATOMIC); | |
46 | } | |
47 | ||
a606b0f6 | 48 | void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev) |
3bcdb17a SG |
49 | { |
50 | } | |
51 | ||
a606b0f6 MB |
52 | int mlx5_core_create_mkey(struct mlx5_core_dev *dev, |
53 | struct mlx5_core_mkey *mkey, | |
746b5583 EC |
54 | struct mlx5_create_mkey_mbox_in *in, int inlen, |
55 | mlx5_cmd_cbk_t callback, void *context, | |
56 | struct mlx5_create_mkey_mbox_out *out) | |
e126ba97 | 57 | { |
a606b0f6 | 58 | struct mlx5_mkey_table *table = &dev->priv.mkey_table; |
746b5583 | 59 | struct mlx5_create_mkey_mbox_out lout; |
e126ba97 EC |
60 | int err; |
61 | u8 key; | |
62 | ||
746b5583 EC |
63 | memset(&lout, 0, sizeof(lout)); |
64 | spin_lock_irq(&dev->priv.mkey_lock); | |
e126ba97 | 65 | key = dev->priv.mkey_key++; |
746b5583 | 66 | spin_unlock_irq(&dev->priv.mkey_lock); |
e126ba97 EC |
67 | in->seg.qpn_mkey7_0 |= cpu_to_be32(key); |
68 | in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_MKEY); | |
746b5583 EC |
69 | if (callback) { |
70 | err = mlx5_cmd_exec_cb(dev, in, inlen, out, sizeof(*out), | |
71 | callback, context); | |
72 | return err; | |
73 | } else { | |
74 | err = mlx5_cmd_exec(dev, in, inlen, &lout, sizeof(lout)); | |
75 | } | |
76 | ||
e126ba97 | 77 | if (err) { |
1a91de28 | 78 | mlx5_core_dbg(dev, "cmd exec failed %d\n", err); |
e126ba97 EC |
79 | return err; |
80 | } | |
81 | ||
746b5583 EC |
82 | if (lout.hdr.status) { |
83 | mlx5_core_dbg(dev, "status %d\n", lout.hdr.status); | |
84 | return mlx5_cmd_status_to_err(&lout.hdr); | |
e126ba97 EC |
85 | } |
86 | ||
a606b0f6 MB |
87 | mkey->iova = be64_to_cpu(in->seg.start_addr); |
88 | mkey->size = be64_to_cpu(in->seg.len); | |
89 | mkey->key = mlx5_idx_to_mkey(be32_to_cpu(lout.mkey) & 0xffffff) | key; | |
90 | mkey->pd = be32_to_cpu(in->seg.flags_pd) & 0xffffff; | |
b475598a | 91 | |
746b5583 | 92 | mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", |
a606b0f6 | 93 | be32_to_cpu(lout.mkey), key, mkey->key); |
e126ba97 | 94 | |
a606b0f6 | 95 | /* connect to mkey tree */ |
3bcdb17a | 96 | write_lock_irq(&table->lock); |
a606b0f6 | 97 | err = radix_tree_insert(&table->tree, mlx5_base_mkey(mkey->key), mkey); |
3bcdb17a | 98 | write_unlock_irq(&table->lock); |
6ef07a9f | 99 | if (err) { |
a606b0f6 MB |
100 | mlx5_core_warn(dev, "failed radix tree insert of mkey 0x%x, %d\n", |
101 | mlx5_base_mkey(mkey->key), err); | |
102 | mlx5_core_destroy_mkey(dev, mkey); | |
6ef07a9f | 103 | } |
3bcdb17a | 104 | |
e126ba97 EC |
105 | return err; |
106 | } | |
107 | EXPORT_SYMBOL(mlx5_core_create_mkey); | |
108 | ||
a606b0f6 MB |
109 | int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, |
110 | struct mlx5_core_mkey *mkey) | |
e126ba97 | 111 | { |
a606b0f6 | 112 | struct mlx5_mkey_table *table = &dev->priv.mkey_table; |
e126ba97 EC |
113 | struct mlx5_destroy_mkey_mbox_in in; |
114 | struct mlx5_destroy_mkey_mbox_out out; | |
a606b0f6 | 115 | struct mlx5_core_mkey *deleted_mkey; |
3bcdb17a | 116 | unsigned long flags; |
e126ba97 EC |
117 | int err; |
118 | ||
119 | memset(&in, 0, sizeof(in)); | |
120 | memset(&out, 0, sizeof(out)); | |
121 | ||
6ef07a9f | 122 | write_lock_irqsave(&table->lock, flags); |
a606b0f6 | 123 | deleted_mkey = radix_tree_delete(&table->tree, mlx5_base_mkey(mkey->key)); |
6ef07a9f | 124 | write_unlock_irqrestore(&table->lock, flags); |
a606b0f6 MB |
125 | if (!deleted_mkey) { |
126 | mlx5_core_warn(dev, "failed radix tree delete of mkey 0x%x\n", | |
127 | mlx5_base_mkey(mkey->key)); | |
6ef07a9f SG |
128 | return -ENOENT; |
129 | } | |
130 | ||
e126ba97 | 131 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DESTROY_MKEY); |
a606b0f6 | 132 | in.mkey = cpu_to_be32(mlx5_mkey_to_idx(mkey->key)); |
e126ba97 EC |
133 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); |
134 | if (err) | |
135 | return err; | |
136 | ||
137 | if (out.hdr.status) | |
138 | return mlx5_cmd_status_to_err(&out.hdr); | |
139 | ||
140 | return err; | |
141 | } | |
142 | EXPORT_SYMBOL(mlx5_core_destroy_mkey); | |
143 | ||
a606b0f6 | 144 | int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey, |
e126ba97 EC |
145 | struct mlx5_query_mkey_mbox_out *out, int outlen) |
146 | { | |
60722c2b | 147 | struct mlx5_query_mkey_mbox_in in; |
e126ba97 EC |
148 | int err; |
149 | ||
150 | memset(&in, 0, sizeof(in)); | |
151 | memset(out, 0, outlen); | |
152 | ||
153 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_MKEY); | |
a606b0f6 | 154 | in.mkey = cpu_to_be32(mlx5_mkey_to_idx(mkey->key)); |
e126ba97 EC |
155 | err = mlx5_cmd_exec(dev, &in, sizeof(in), out, outlen); |
156 | if (err) | |
157 | return err; | |
158 | ||
159 | if (out->hdr.status) | |
160 | return mlx5_cmd_status_to_err(&out->hdr); | |
161 | ||
162 | return err; | |
163 | } | |
164 | EXPORT_SYMBOL(mlx5_core_query_mkey); | |
165 | ||
a606b0f6 | 166 | int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey, |
e126ba97 EC |
167 | u32 *mkey) |
168 | { | |
169 | struct mlx5_query_special_ctxs_mbox_in in; | |
170 | struct mlx5_query_special_ctxs_mbox_out out; | |
171 | int err; | |
172 | ||
173 | memset(&in, 0, sizeof(in)); | |
174 | memset(&out, 0, sizeof(out)); | |
175 | ||
176 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); | |
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 | return mlx5_cmd_status_to_err(&out.hdr); | |
183 | ||
184 | *mkey = be32_to_cpu(out.dump_fill_mkey); | |
185 | ||
186 | return err; | |
187 | } | |
188 | EXPORT_SYMBOL(mlx5_core_dump_fill_mkey); | |
3121e3c4 SG |
189 | |
190 | int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn, | |
191 | int npsvs, u32 *sig_index) | |
192 | { | |
193 | struct mlx5_allocate_psv_in in; | |
194 | struct mlx5_allocate_psv_out out; | |
195 | int i, err; | |
196 | ||
197 | if (npsvs > MLX5_MAX_PSVS) | |
198 | return -EINVAL; | |
199 | ||
200 | memset(&in, 0, sizeof(in)); | |
201 | memset(&out, 0, sizeof(out)); | |
202 | ||
203 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_PSV); | |
204 | in.npsv_pd = cpu_to_be32((npsvs << 28) | pdn); | |
205 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
206 | if (err) { | |
207 | mlx5_core_err(dev, "cmd exec failed %d\n", err); | |
208 | return err; | |
209 | } | |
210 | ||
211 | if (out.hdr.status) { | |
1a91de28 JP |
212 | mlx5_core_err(dev, "create_psv bad status %d\n", |
213 | out.hdr.status); | |
3121e3c4 SG |
214 | return mlx5_cmd_status_to_err(&out.hdr); |
215 | } | |
216 | ||
217 | for (i = 0; i < npsvs; i++) | |
218 | sig_index[i] = be32_to_cpu(out.psv_idx[i]) & 0xffffff; | |
219 | ||
220 | return err; | |
221 | } | |
222 | EXPORT_SYMBOL(mlx5_core_create_psv); | |
223 | ||
224 | int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num) | |
225 | { | |
226 | struct mlx5_destroy_psv_in in; | |
227 | struct mlx5_destroy_psv_out out; | |
228 | int err; | |
229 | ||
230 | memset(&in, 0, sizeof(in)); | |
231 | memset(&out, 0, sizeof(out)); | |
232 | ||
233 | in.psv_number = cpu_to_be32(psv_num); | |
234 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DESTROY_PSV); | |
235 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
236 | if (err) { | |
237 | mlx5_core_err(dev, "destroy_psv cmd exec failed %d\n", err); | |
238 | goto out; | |
239 | } | |
240 | ||
241 | if (out.hdr.status) { | |
1a91de28 JP |
242 | mlx5_core_err(dev, "destroy_psv bad status %d\n", |
243 | out.hdr.status); | |
3121e3c4 SG |
244 | err = mlx5_cmd_status_to_err(&out.hdr); |
245 | goto out; | |
246 | } | |
247 | ||
248 | out: | |
249 | return err; | |
250 | } | |
251 | EXPORT_SYMBOL(mlx5_core_destroy_psv); |