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e126ba97 | 1 | /* |
6cf0a15f | 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/mlx5/cmd.h> | |
34 | #include <rdma/ib_mad.h> | |
35 | #include <rdma/ib_smi.h> | |
36 | #include "mlx5_ib.h" | |
37 | ||
38 | enum { | |
39 | MLX5_IB_VENDOR_CLASS1 = 0x9, | |
40 | MLX5_IB_VENDOR_CLASS2 = 0xa | |
41 | }; | |
42 | ||
43 | int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey, | |
a97e2d86 IW |
44 | u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, |
45 | const void *in_mad, void *response_mad) | |
e126ba97 EC |
46 | { |
47 | u8 op_modifier = 0; | |
48 | ||
49 | /* Key check traps can't be generated unless we have in_wc to | |
50 | * tell us where to send the trap. | |
51 | */ | |
52 | if (ignore_mkey || !in_wc) | |
53 | op_modifier |= 0x1; | |
54 | if (ignore_bkey || !in_wc) | |
55 | op_modifier |= 0x2; | |
56 | ||
9603b61d | 57 | return mlx5_core_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, port); |
e126ba97 EC |
58 | } |
59 | ||
60 | int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, | |
a97e2d86 | 61 | const struct ib_wc *in_wc, const struct ib_grh *in_grh, |
4cd7c947 IW |
62 | const struct ib_mad_hdr *in, size_t in_mad_size, |
63 | struct ib_mad_hdr *out, size_t *out_mad_size, | |
64 | u16 *out_mad_pkey_index) | |
e126ba97 EC |
65 | { |
66 | u16 slid; | |
67 | int err; | |
4cd7c947 IW |
68 | const struct ib_mad *in_mad = (const struct ib_mad *)in; |
69 | struct ib_mad *out_mad = (struct ib_mad *)out; | |
70 | ||
3b8ab700 IW |
71 | if (WARN_ON_ONCE(in_mad_size != sizeof(*in_mad) || |
72 | *out_mad_size != sizeof(*out_mad))) | |
73 | return IB_MAD_RESULT_FAILURE; | |
e126ba97 EC |
74 | |
75 | slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE); | |
76 | ||
77 | if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) | |
78 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; | |
79 | ||
80 | if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED || | |
81 | in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { | |
82 | if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && | |
83 | in_mad->mad_hdr.method != IB_MGMT_METHOD_SET && | |
84 | in_mad->mad_hdr.method != IB_MGMT_METHOD_TRAP_REPRESS) | |
85 | return IB_MAD_RESULT_SUCCESS; | |
86 | ||
87 | /* Don't process SMInfo queries -- the SMA can't handle them. | |
88 | */ | |
89 | if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO) | |
90 | return IB_MAD_RESULT_SUCCESS; | |
91 | } else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT || | |
92 | in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS1 || | |
93 | in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS2 || | |
94 | in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_CONG_MGMT) { | |
95 | if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && | |
96 | in_mad->mad_hdr.method != IB_MGMT_METHOD_SET) | |
97 | return IB_MAD_RESULT_SUCCESS; | |
98 | } else { | |
99 | return IB_MAD_RESULT_SUCCESS; | |
100 | } | |
101 | ||
102 | err = mlx5_MAD_IFC(to_mdev(ibdev), | |
103 | mad_flags & IB_MAD_IGNORE_MKEY, | |
104 | mad_flags & IB_MAD_IGNORE_BKEY, | |
105 | port_num, in_wc, in_grh, in_mad, out_mad); | |
106 | if (err) | |
107 | return IB_MAD_RESULT_FAILURE; | |
108 | ||
109 | /* set return bit in status of directed route responses */ | |
110 | if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) | |
111 | out_mad->mad_hdr.status |= cpu_to_be16(1 << 15); | |
112 | ||
113 | if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS) | |
114 | /* no response for trap repress */ | |
115 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; | |
116 | ||
117 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; | |
118 | } | |
119 | ||
120 | int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port) | |
121 | { | |
122 | struct ib_smp *in_mad = NULL; | |
123 | struct ib_smp *out_mad = NULL; | |
124 | int err = -ENOMEM; | |
125 | u16 packet_error; | |
126 | ||
127 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
128 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
129 | if (!in_mad || !out_mad) | |
130 | goto out; | |
131 | ||
132 | init_query_mad(in_mad); | |
133 | in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; | |
134 | in_mad->attr_mod = cpu_to_be32(port); | |
135 | ||
136 | err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
137 | ||
138 | packet_error = be16_to_cpu(out_mad->status); | |
139 | ||
938fe83c | 140 | dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? |
e126ba97 EC |
141 | MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; |
142 | ||
143 | out: | |
144 | kfree(in_mad); | |
145 | kfree(out_mad); | |
146 | return err; | |
147 | } | |
1b5daf11 MD |
148 | |
149 | int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, | |
150 | struct ib_smp *out_mad) | |
151 | { | |
152 | struct ib_smp *in_mad = NULL; | |
153 | int err = -ENOMEM; | |
154 | ||
155 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
156 | if (!in_mad) | |
157 | return -ENOMEM; | |
158 | ||
159 | init_query_mad(in_mad); | |
160 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
161 | ||
162 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, | |
163 | out_mad); | |
164 | ||
165 | kfree(in_mad); | |
166 | return err; | |
167 | } | |
168 | ||
169 | int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, | |
170 | __be64 *sys_image_guid) | |
171 | { | |
172 | struct ib_smp *out_mad = NULL; | |
173 | int err = -ENOMEM; | |
174 | ||
175 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
176 | if (!out_mad) | |
177 | return -ENOMEM; | |
178 | ||
179 | err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); | |
180 | if (err) | |
181 | goto out; | |
182 | ||
183 | memcpy(sys_image_guid, out_mad->data + 4, 8); | |
184 | ||
185 | out: | |
186 | kfree(out_mad); | |
187 | ||
188 | return err; | |
189 | } | |
190 | ||
191 | int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, | |
192 | u16 *max_pkeys) | |
193 | { | |
194 | struct ib_smp *out_mad = NULL; | |
195 | int err = -ENOMEM; | |
196 | ||
197 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
198 | if (!out_mad) | |
199 | return -ENOMEM; | |
200 | ||
201 | err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); | |
202 | if (err) | |
203 | goto out; | |
204 | ||
205 | *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); | |
206 | ||
207 | out: | |
208 | kfree(out_mad); | |
209 | ||
210 | return err; | |
211 | } | |
212 | ||
213 | int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, | |
214 | u32 *vendor_id) | |
215 | { | |
216 | struct ib_smp *out_mad = NULL; | |
217 | int err = -ENOMEM; | |
218 | ||
219 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
220 | if (!out_mad) | |
221 | return -ENOMEM; | |
222 | ||
223 | err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); | |
224 | if (err) | |
225 | goto out; | |
226 | ||
227 | *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; | |
228 | ||
229 | out: | |
230 | kfree(out_mad); | |
231 | ||
232 | return err; | |
233 | } | |
234 | ||
235 | int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) | |
236 | { | |
237 | struct ib_smp *in_mad = NULL; | |
238 | struct ib_smp *out_mad = NULL; | |
239 | int err = -ENOMEM; | |
240 | ||
241 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
242 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
243 | if (!in_mad || !out_mad) | |
244 | goto out; | |
245 | ||
246 | init_query_mad(in_mad); | |
247 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; | |
248 | ||
249 | err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
250 | if (err) | |
251 | goto out; | |
252 | ||
253 | memcpy(node_desc, out_mad->data, 64); | |
254 | out: | |
255 | kfree(in_mad); | |
256 | kfree(out_mad); | |
257 | return err; | |
258 | } | |
259 | ||
260 | int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) | |
261 | { | |
262 | struct ib_smp *in_mad = NULL; | |
263 | struct ib_smp *out_mad = NULL; | |
264 | int err = -ENOMEM; | |
265 | ||
266 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
267 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
268 | if (!in_mad || !out_mad) | |
269 | goto out; | |
270 | ||
271 | init_query_mad(in_mad); | |
272 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
273 | ||
274 | err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
275 | if (err) | |
276 | goto out; | |
277 | ||
278 | memcpy(node_guid, out_mad->data + 12, 8); | |
279 | out: | |
280 | kfree(in_mad); | |
281 | kfree(out_mad); | |
282 | return err; | |
283 | } | |
284 | ||
285 | int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, | |
286 | u16 *pkey) | |
287 | { | |
288 | struct ib_smp *in_mad = NULL; | |
289 | struct ib_smp *out_mad = NULL; | |
290 | int err = -ENOMEM; | |
291 | ||
292 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
293 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
294 | if (!in_mad || !out_mad) | |
295 | goto out; | |
296 | ||
297 | init_query_mad(in_mad); | |
298 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
299 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
300 | ||
301 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, | |
302 | out_mad); | |
303 | if (err) | |
304 | goto out; | |
305 | ||
306 | *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); | |
307 | ||
308 | out: | |
309 | kfree(in_mad); | |
310 | kfree(out_mad); | |
311 | return err; | |
312 | } | |
313 | ||
314 | int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, | |
315 | union ib_gid *gid) | |
316 | { | |
317 | struct ib_smp *in_mad = NULL; | |
318 | struct ib_smp *out_mad = NULL; | |
319 | int err = -ENOMEM; | |
320 | ||
321 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
322 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
323 | if (!in_mad || !out_mad) | |
324 | goto out; | |
325 | ||
326 | init_query_mad(in_mad); | |
327 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
328 | in_mad->attr_mod = cpu_to_be32(port); | |
329 | ||
330 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, | |
331 | out_mad); | |
332 | if (err) | |
333 | goto out; | |
334 | ||
335 | memcpy(gid->raw, out_mad->data + 8, 8); | |
336 | ||
337 | init_query_mad(in_mad); | |
338 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
339 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
340 | ||
341 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, | |
342 | out_mad); | |
343 | if (err) | |
344 | goto out; | |
345 | ||
346 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); | |
347 | ||
348 | out: | |
349 | kfree(in_mad); | |
350 | kfree(out_mad); | |
351 | return err; | |
352 | } | |
353 | ||
354 | int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, | |
355 | struct ib_port_attr *props) | |
356 | { | |
357 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
358 | struct mlx5_core_dev *mdev = dev->mdev; | |
359 | struct ib_smp *in_mad = NULL; | |
360 | struct ib_smp *out_mad = NULL; | |
361 | int ext_active_speed; | |
362 | int err = -ENOMEM; | |
363 | ||
364 | if (port < 1 || port > MLX5_CAP_GEN(mdev, num_ports)) { | |
365 | mlx5_ib_warn(dev, "invalid port number %d\n", port); | |
366 | return -EINVAL; | |
367 | } | |
368 | ||
369 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
370 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
371 | if (!in_mad || !out_mad) | |
372 | goto out; | |
373 | ||
374 | memset(props, 0, sizeof(*props)); | |
375 | ||
376 | init_query_mad(in_mad); | |
377 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
378 | in_mad->attr_mod = cpu_to_be32(port); | |
379 | ||
380 | err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); | |
381 | if (err) { | |
382 | mlx5_ib_warn(dev, "err %d\n", err); | |
383 | goto out; | |
384 | } | |
385 | ||
386 | props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); | |
387 | props->lmc = out_mad->data[34] & 0x7; | |
388 | props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); | |
389 | props->sm_sl = out_mad->data[36] & 0xf; | |
390 | props->state = out_mad->data[32] & 0xf; | |
391 | props->phys_state = out_mad->data[33] >> 4; | |
392 | props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); | |
393 | props->gid_tbl_len = out_mad->data[50]; | |
394 | props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); | |
395 | props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len; | |
396 | props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); | |
397 | props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); | |
398 | props->active_width = out_mad->data[31] & 0xf; | |
399 | props->active_speed = out_mad->data[35] >> 4; | |
400 | props->max_mtu = out_mad->data[41] & 0xf; | |
401 | props->active_mtu = out_mad->data[36] >> 4; | |
402 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
403 | props->max_vl_num = out_mad->data[37] >> 4; | |
404 | props->init_type_reply = out_mad->data[41] >> 4; | |
405 | ||
406 | /* Check if extended speeds (EDR/FDR/...) are supported */ | |
407 | if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { | |
408 | ext_active_speed = out_mad->data[62] >> 4; | |
409 | ||
410 | switch (ext_active_speed) { | |
411 | case 1: | |
412 | props->active_speed = 16; /* FDR */ | |
413 | break; | |
414 | case 2: | |
415 | props->active_speed = 32; /* EDR */ | |
416 | break; | |
417 | } | |
418 | } | |
419 | ||
420 | /* If reported active speed is QDR, check if is FDR-10 */ | |
421 | if (props->active_speed == 4) { | |
422 | if (mdev->port_caps[port - 1].ext_port_cap & | |
423 | MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { | |
424 | init_query_mad(in_mad); | |
425 | in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; | |
426 | in_mad->attr_mod = cpu_to_be32(port); | |
427 | ||
428 | err = mlx5_MAD_IFC(dev, 1, 1, port, | |
429 | NULL, NULL, in_mad, out_mad); | |
430 | if (err) | |
431 | goto out; | |
432 | ||
433 | /* Checking LinkSpeedActive for FDR-10 */ | |
434 | if (out_mad->data[15] & 0x1) | |
435 | props->active_speed = 8; | |
436 | } | |
437 | } | |
438 | ||
439 | out: | |
440 | kfree(in_mad); | |
441 | kfree(out_mad); | |
442 | ||
443 | return err; | |
444 | } |