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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> | |
3efd9a11 | 34 | #include <linux/mlx5/vport.h> |
e126ba97 EC |
35 | #include <rdma/ib_mad.h> |
36 | #include <rdma/ib_smi.h> | |
3efd9a11 | 37 | #include <rdma/ib_pma.h> |
e126ba97 EC |
38 | #include "mlx5_ib.h" |
39 | ||
40 | enum { | |
41 | MLX5_IB_VENDOR_CLASS1 = 0x9, | |
42 | MLX5_IB_VENDOR_CLASS2 = 0xa | |
43 | }; | |
44 | ||
45 | int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey, | |
a97e2d86 IW |
46 | u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, |
47 | const void *in_mad, void *response_mad) | |
e126ba97 EC |
48 | { |
49 | u8 op_modifier = 0; | |
50 | ||
51 | /* Key check traps can't be generated unless we have in_wc to | |
52 | * tell us where to send the trap. | |
53 | */ | |
54 | if (ignore_mkey || !in_wc) | |
55 | op_modifier |= 0x1; | |
56 | if (ignore_bkey || !in_wc) | |
57 | op_modifier |= 0x2; | |
58 | ||
9603b61d | 59 | return mlx5_core_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, port); |
e126ba97 EC |
60 | } |
61 | ||
3efd9a11 MY |
62 | static int process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, |
63 | const struct ib_wc *in_wc, const struct ib_grh *in_grh, | |
64 | const struct ib_mad *in_mad, struct ib_mad *out_mad) | |
e126ba97 EC |
65 | { |
66 | u16 slid; | |
67 | int err; | |
68 | ||
69 | slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE); | |
70 | ||
71 | if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) | |
72 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; | |
73 | ||
74 | if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED || | |
75 | in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { | |
76 | if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && | |
77 | in_mad->mad_hdr.method != IB_MGMT_METHOD_SET && | |
78 | in_mad->mad_hdr.method != IB_MGMT_METHOD_TRAP_REPRESS) | |
79 | return IB_MAD_RESULT_SUCCESS; | |
80 | ||
81 | /* Don't process SMInfo queries -- the SMA can't handle them. | |
82 | */ | |
83 | if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO) | |
84 | return IB_MAD_RESULT_SUCCESS; | |
85 | } else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT || | |
86 | in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS1 || | |
87 | in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS2 || | |
88 | in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_CONG_MGMT) { | |
89 | if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && | |
90 | in_mad->mad_hdr.method != IB_MGMT_METHOD_SET) | |
91 | return IB_MAD_RESULT_SUCCESS; | |
92 | } else { | |
93 | return IB_MAD_RESULT_SUCCESS; | |
94 | } | |
95 | ||
96 | err = mlx5_MAD_IFC(to_mdev(ibdev), | |
97 | mad_flags & IB_MAD_IGNORE_MKEY, | |
98 | mad_flags & IB_MAD_IGNORE_BKEY, | |
99 | port_num, in_wc, in_grh, in_mad, out_mad); | |
100 | if (err) | |
101 | return IB_MAD_RESULT_FAILURE; | |
102 | ||
103 | /* set return bit in status of directed route responses */ | |
104 | if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) | |
105 | out_mad->mad_hdr.status |= cpu_to_be16(1 << 15); | |
106 | ||
107 | if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS) | |
108 | /* no response for trap repress */ | |
109 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; | |
110 | ||
111 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; | |
112 | } | |
113 | ||
3efd9a11 MY |
114 | static void pma_cnt_ext_assign(struct ib_pma_portcounters_ext *pma_cnt_ext, |
115 | void *out) | |
116 | { | |
117 | #define MLX5_SUM_CNT(p, cntr1, cntr2) \ | |
118 | (MLX5_GET64(query_vport_counter_out, p, cntr1) + \ | |
119 | MLX5_GET64(query_vport_counter_out, p, cntr2)) | |
120 | ||
121 | pma_cnt_ext->port_xmit_data = | |
122 | cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.octets, | |
123 | transmitted_ib_multicast.octets) >> 2); | |
124 | pma_cnt_ext->port_xmit_data = | |
125 | cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.octets, | |
126 | received_ib_multicast.octets) >> 2); | |
127 | pma_cnt_ext->port_xmit_packets = | |
128 | cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.packets, | |
129 | transmitted_ib_multicast.packets)); | |
130 | pma_cnt_ext->port_rcv_packets = | |
131 | cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.packets, | |
132 | received_ib_multicast.packets)); | |
133 | pma_cnt_ext->port_unicast_xmit_packets = | |
134 | MLX5_GET64_BE(query_vport_counter_out, | |
135 | out, transmitted_ib_unicast.packets); | |
136 | pma_cnt_ext->port_unicast_rcv_packets = | |
137 | MLX5_GET64_BE(query_vport_counter_out, | |
138 | out, received_ib_unicast.packets); | |
139 | pma_cnt_ext->port_multicast_xmit_packets = | |
140 | MLX5_GET64_BE(query_vport_counter_out, | |
141 | out, transmitted_ib_multicast.packets); | |
142 | pma_cnt_ext->port_multicast_rcv_packets = | |
143 | MLX5_GET64_BE(query_vport_counter_out, | |
144 | out, received_ib_multicast.packets); | |
145 | } | |
146 | ||
147 | static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt, | |
148 | void *out) | |
149 | { | |
150 | /* Traffic counters will be reported in | |
151 | * their 64bit form via ib_pma_portcounters_ext by default. | |
152 | */ | |
153 | void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out, | |
154 | counter_set); | |
155 | ||
156 | #define MLX5_ASSIGN_PMA_CNTR(counter_var, counter_name) { \ | |
157 | counter_var = MLX5_GET_BE(typeof(counter_var), \ | |
158 | ib_port_cntrs_grp_data_layout, \ | |
159 | out_pma, counter_name); \ | |
160 | } | |
161 | ||
162 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->symbol_error_counter, | |
163 | symbol_error_counter); | |
164 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_error_recovery_counter, | |
165 | link_error_recovery_counter); | |
166 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_downed_counter, | |
167 | link_downed_counter); | |
168 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_errors, | |
169 | port_rcv_errors); | |
170 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_remphys_errors, | |
171 | port_rcv_remote_physical_errors); | |
172 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_switch_relay_errors, | |
173 | port_rcv_switch_relay_errors); | |
174 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_discards, | |
175 | port_xmit_discards); | |
176 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors, | |
177 | port_xmit_constraint_errors); | |
178 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors, | |
179 | port_rcv_constraint_errors); | |
180 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors, | |
181 | link_overrun_errors); | |
182 | MLX5_ASSIGN_PMA_CNTR(pma_cnt->vl15_dropped, | |
183 | vl_15_dropped); | |
184 | } | |
185 | ||
186 | static int process_pma_cmd(struct ib_device *ibdev, u8 port_num, | |
187 | const struct ib_mad *in_mad, struct ib_mad *out_mad) | |
188 | { | |
189 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
190 | int err; | |
191 | void *out_cnt; | |
192 | ||
193 | /* Decalring support of extended counters */ | |
194 | if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) { | |
195 | struct ib_class_port_info cpi = {}; | |
196 | ||
197 | cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; | |
198 | memcpy((out_mad->data + 40), &cpi, sizeof(cpi)); | |
199 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; | |
200 | } | |
201 | ||
202 | if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) { | |
203 | struct ib_pma_portcounters_ext *pma_cnt_ext = | |
204 | (struct ib_pma_portcounters_ext *)(out_mad->data + 40); | |
205 | int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); | |
206 | ||
207 | out_cnt = mlx5_vzalloc(sz); | |
208 | if (!out_cnt) | |
209 | return IB_MAD_RESULT_FAILURE; | |
210 | ||
2a4826fe | 211 | err = mlx5_core_query_vport_counter(dev->mdev, 0, 0, |
3efd9a11 MY |
212 | port_num, out_cnt, sz); |
213 | if (!err) | |
214 | pma_cnt_ext_assign(pma_cnt_ext, out_cnt); | |
215 | } else { | |
216 | struct ib_pma_portcounters *pma_cnt = | |
217 | (struct ib_pma_portcounters *)(out_mad->data + 40); | |
218 | int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); | |
219 | ||
220 | out_cnt = mlx5_vzalloc(sz); | |
221 | if (!out_cnt) | |
222 | return IB_MAD_RESULT_FAILURE; | |
223 | ||
224 | err = mlx5_core_query_ib_ppcnt(dev->mdev, port_num, | |
225 | out_cnt, sz); | |
226 | if (!err) | |
227 | pma_cnt_assign(pma_cnt, out_cnt); | |
228 | } | |
229 | ||
230 | kvfree(out_cnt); | |
231 | if (err) | |
232 | return IB_MAD_RESULT_FAILURE; | |
233 | ||
234 | return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; | |
235 | } | |
236 | ||
237 | int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, | |
238 | const struct ib_wc *in_wc, const struct ib_grh *in_grh, | |
239 | const struct ib_mad_hdr *in, size_t in_mad_size, | |
240 | struct ib_mad_hdr *out, size_t *out_mad_size, | |
241 | u16 *out_mad_pkey_index) | |
242 | { | |
243 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
244 | struct mlx5_core_dev *mdev = dev->mdev; | |
245 | const struct ib_mad *in_mad = (const struct ib_mad *)in; | |
246 | struct ib_mad *out_mad = (struct ib_mad *)out; | |
247 | ||
248 | if (WARN_ON_ONCE(in_mad_size != sizeof(*in_mad) || | |
249 | *out_mad_size != sizeof(*out_mad))) | |
250 | return IB_MAD_RESULT_FAILURE; | |
251 | ||
252 | memset(out_mad->data, 0, sizeof(out_mad->data)); | |
253 | ||
254 | if (MLX5_CAP_GEN(mdev, vport_counters) && | |
255 | in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT && | |
256 | in_mad->mad_hdr.method == IB_MGMT_METHOD_GET) { | |
257 | return process_pma_cmd(ibdev, port_num, in_mad, out_mad); | |
258 | } else { | |
259 | return process_mad(ibdev, mad_flags, port_num, in_wc, in_grh, | |
260 | in_mad, out_mad); | |
261 | } | |
262 | } | |
263 | ||
e126ba97 EC |
264 | int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port) |
265 | { | |
266 | struct ib_smp *in_mad = NULL; | |
267 | struct ib_smp *out_mad = NULL; | |
268 | int err = -ENOMEM; | |
269 | u16 packet_error; | |
270 | ||
271 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
272 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
273 | if (!in_mad || !out_mad) | |
274 | goto out; | |
275 | ||
276 | init_query_mad(in_mad); | |
277 | in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; | |
278 | in_mad->attr_mod = cpu_to_be32(port); | |
279 | ||
280 | err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
281 | ||
282 | packet_error = be16_to_cpu(out_mad->status); | |
283 | ||
938fe83c | 284 | dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? |
e126ba97 EC |
285 | MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; |
286 | ||
287 | out: | |
288 | kfree(in_mad); | |
289 | kfree(out_mad); | |
290 | return err; | |
291 | } | |
1b5daf11 MD |
292 | |
293 | int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, | |
294 | struct ib_smp *out_mad) | |
295 | { | |
296 | struct ib_smp *in_mad = NULL; | |
297 | int err = -ENOMEM; | |
298 | ||
299 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
300 | if (!in_mad) | |
301 | return -ENOMEM; | |
302 | ||
303 | init_query_mad(in_mad); | |
304 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
305 | ||
306 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, | |
307 | out_mad); | |
308 | ||
309 | kfree(in_mad); | |
310 | return err; | |
311 | } | |
312 | ||
313 | int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, | |
314 | __be64 *sys_image_guid) | |
315 | { | |
316 | struct ib_smp *out_mad = NULL; | |
317 | int err = -ENOMEM; | |
318 | ||
319 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
320 | if (!out_mad) | |
321 | return -ENOMEM; | |
322 | ||
323 | err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); | |
324 | if (err) | |
325 | goto out; | |
326 | ||
327 | memcpy(sys_image_guid, out_mad->data + 4, 8); | |
328 | ||
329 | out: | |
330 | kfree(out_mad); | |
331 | ||
332 | return err; | |
333 | } | |
334 | ||
335 | int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, | |
336 | u16 *max_pkeys) | |
337 | { | |
338 | struct ib_smp *out_mad = NULL; | |
339 | int err = -ENOMEM; | |
340 | ||
341 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
342 | if (!out_mad) | |
343 | return -ENOMEM; | |
344 | ||
345 | err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); | |
346 | if (err) | |
347 | goto out; | |
348 | ||
349 | *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); | |
350 | ||
351 | out: | |
352 | kfree(out_mad); | |
353 | ||
354 | return err; | |
355 | } | |
356 | ||
357 | int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, | |
358 | u32 *vendor_id) | |
359 | { | |
360 | struct ib_smp *out_mad = NULL; | |
361 | int err = -ENOMEM; | |
362 | ||
363 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
364 | if (!out_mad) | |
365 | return -ENOMEM; | |
366 | ||
367 | err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); | |
368 | if (err) | |
369 | goto out; | |
370 | ||
371 | *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; | |
372 | ||
373 | out: | |
374 | kfree(out_mad); | |
375 | ||
376 | return err; | |
377 | } | |
378 | ||
379 | int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) | |
380 | { | |
381 | struct ib_smp *in_mad = NULL; | |
382 | struct ib_smp *out_mad = NULL; | |
383 | int err = -ENOMEM; | |
384 | ||
385 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
386 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
387 | if (!in_mad || !out_mad) | |
388 | goto out; | |
389 | ||
390 | init_query_mad(in_mad); | |
391 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; | |
392 | ||
393 | err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
394 | if (err) | |
395 | goto out; | |
396 | ||
397 | memcpy(node_desc, out_mad->data, 64); | |
398 | out: | |
399 | kfree(in_mad); | |
400 | kfree(out_mad); | |
401 | return err; | |
402 | } | |
403 | ||
404 | int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) | |
405 | { | |
406 | struct ib_smp *in_mad = NULL; | |
407 | struct ib_smp *out_mad = NULL; | |
408 | int err = -ENOMEM; | |
409 | ||
410 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
411 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
412 | if (!in_mad || !out_mad) | |
413 | goto out; | |
414 | ||
415 | init_query_mad(in_mad); | |
416 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
417 | ||
418 | err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
419 | if (err) | |
420 | goto out; | |
421 | ||
422 | memcpy(node_guid, out_mad->data + 12, 8); | |
423 | out: | |
424 | kfree(in_mad); | |
425 | kfree(out_mad); | |
426 | return err; | |
427 | } | |
428 | ||
429 | int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, | |
430 | u16 *pkey) | |
431 | { | |
432 | struct ib_smp *in_mad = NULL; | |
433 | struct ib_smp *out_mad = NULL; | |
434 | int err = -ENOMEM; | |
435 | ||
436 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
437 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
438 | if (!in_mad || !out_mad) | |
439 | goto out; | |
440 | ||
441 | init_query_mad(in_mad); | |
442 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
443 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
444 | ||
445 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, | |
446 | out_mad); | |
447 | if (err) | |
448 | goto out; | |
449 | ||
450 | *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); | |
451 | ||
452 | out: | |
453 | kfree(in_mad); | |
454 | kfree(out_mad); | |
455 | return err; | |
456 | } | |
457 | ||
458 | int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, | |
459 | union ib_gid *gid) | |
460 | { | |
461 | struct ib_smp *in_mad = NULL; | |
462 | struct ib_smp *out_mad = NULL; | |
463 | int err = -ENOMEM; | |
464 | ||
465 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
466 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
467 | if (!in_mad || !out_mad) | |
468 | goto out; | |
469 | ||
470 | init_query_mad(in_mad); | |
471 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
472 | in_mad->attr_mod = cpu_to_be32(port); | |
473 | ||
474 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, | |
475 | out_mad); | |
476 | if (err) | |
477 | goto out; | |
478 | ||
479 | memcpy(gid->raw, out_mad->data + 8, 8); | |
480 | ||
481 | init_query_mad(in_mad); | |
482 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
483 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
484 | ||
485 | err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, | |
486 | out_mad); | |
487 | if (err) | |
488 | goto out; | |
489 | ||
490 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); | |
491 | ||
492 | out: | |
493 | kfree(in_mad); | |
494 | kfree(out_mad); | |
495 | return err; | |
496 | } | |
497 | ||
498 | int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, | |
499 | struct ib_port_attr *props) | |
500 | { | |
501 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
502 | struct mlx5_core_dev *mdev = dev->mdev; | |
503 | struct ib_smp *in_mad = NULL; | |
504 | struct ib_smp *out_mad = NULL; | |
505 | int ext_active_speed; | |
506 | int err = -ENOMEM; | |
507 | ||
508 | if (port < 1 || port > MLX5_CAP_GEN(mdev, num_ports)) { | |
509 | mlx5_ib_warn(dev, "invalid port number %d\n", port); | |
510 | return -EINVAL; | |
511 | } | |
512 | ||
513 | in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); | |
514 | out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); | |
515 | if (!in_mad || !out_mad) | |
516 | goto out; | |
517 | ||
518 | memset(props, 0, sizeof(*props)); | |
519 | ||
520 | init_query_mad(in_mad); | |
521 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
522 | in_mad->attr_mod = cpu_to_be32(port); | |
523 | ||
524 | err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); | |
525 | if (err) { | |
526 | mlx5_ib_warn(dev, "err %d\n", err); | |
527 | goto out; | |
528 | } | |
529 | ||
530 | props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); | |
531 | props->lmc = out_mad->data[34] & 0x7; | |
532 | props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); | |
533 | props->sm_sl = out_mad->data[36] & 0xf; | |
534 | props->state = out_mad->data[32] & 0xf; | |
535 | props->phys_state = out_mad->data[33] >> 4; | |
536 | props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); | |
537 | props->gid_tbl_len = out_mad->data[50]; | |
538 | props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); | |
539 | props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len; | |
540 | props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); | |
541 | props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); | |
542 | props->active_width = out_mad->data[31] & 0xf; | |
543 | props->active_speed = out_mad->data[35] >> 4; | |
544 | props->max_mtu = out_mad->data[41] & 0xf; | |
545 | props->active_mtu = out_mad->data[36] >> 4; | |
546 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
547 | props->max_vl_num = out_mad->data[37] >> 4; | |
548 | props->init_type_reply = out_mad->data[41] >> 4; | |
549 | ||
550 | /* Check if extended speeds (EDR/FDR/...) are supported */ | |
551 | if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { | |
552 | ext_active_speed = out_mad->data[62] >> 4; | |
553 | ||
554 | switch (ext_active_speed) { | |
555 | case 1: | |
556 | props->active_speed = 16; /* FDR */ | |
557 | break; | |
558 | case 2: | |
559 | props->active_speed = 32; /* EDR */ | |
560 | break; | |
561 | } | |
562 | } | |
563 | ||
564 | /* If reported active speed is QDR, check if is FDR-10 */ | |
565 | if (props->active_speed == 4) { | |
566 | if (mdev->port_caps[port - 1].ext_port_cap & | |
567 | MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { | |
568 | init_query_mad(in_mad); | |
569 | in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; | |
570 | in_mad->attr_mod = cpu_to_be32(port); | |
571 | ||
572 | err = mlx5_MAD_IFC(dev, 1, 1, port, | |
573 | NULL, NULL, in_mad, out_mad); | |
574 | if (err) | |
575 | goto out; | |
576 | ||
577 | /* Checking LinkSpeedActive for FDR-10 */ | |
578 | if (out_mad->data[15] & 0x1) | |
579 | props->active_speed = 8; | |
580 | } | |
581 | } | |
582 | ||
583 | out: | |
584 | kfree(in_mad); | |
585 | kfree(out_mad); | |
586 | ||
587 | return err; | |
588 | } |