1 /*
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2015 Intel Corporation.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * BSD LICENSE
20 *
21 * Copyright(c) 2015 Intel Corporation.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 *
27 * - Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
29 * - Redistributions in binary form must reproduce the above copyright
30 * notice, this list of conditions and the following disclaimer in
31 * the documentation and/or other materials provided with the
32 * distribution.
33 * - Neither the name of Intel Corporation nor the names of its
34 * contributors may be used to endorse or promote products derived
35 * from this software without specific prior written permission.
36 *
37 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
38 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
39 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
40 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
41 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
44 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
45 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 *
49 */
50
51 #include <linux/net.h>
52 #define OPA_NUM_PKEY_BLOCKS_PER_SMP (OPA_SMP_DR_DATA_SIZE \
53 / (OPA_PARTITION_TABLE_BLK_SIZE * sizeof(u16)))
54
55 #include "hfi.h"
56 #include "mad.h"
57 #include "trace.h"
58
59 /* the reset value from the FM is supposed to be 0xffff, handle both */
60 #define OPA_LINK_WIDTH_RESET_OLD 0x0fff
61 #define OPA_LINK_WIDTH_RESET 0xffff
62
reply(struct ib_mad_hdr * smp)63 static int reply(struct ib_mad_hdr *smp)
64 {
65 /*
66 * The verbs framework will handle the directed/LID route
67 * packet changes.
68 */
69 smp->method = IB_MGMT_METHOD_GET_RESP;
70 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
71 smp->status |= IB_SMP_DIRECTION;
72 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
73 }
74
clear_opa_smp_data(struct opa_smp * smp)75 static inline void clear_opa_smp_data(struct opa_smp *smp)
76 {
77 void *data = opa_get_smp_data(smp);
78 size_t size = opa_get_smp_data_size(smp);
79
80 memset(data, 0, size);
81 }
82
send_trap(struct hfi1_ibport * ibp,void * data,unsigned len)83 static void send_trap(struct hfi1_ibport *ibp, void *data, unsigned len)
84 {
85 struct ib_mad_send_buf *send_buf;
86 struct ib_mad_agent *agent;
87 struct ib_smp *smp;
88 int ret;
89 unsigned long flags;
90 unsigned long timeout;
91 int pkey_idx;
92 u32 qpn = ppd_from_ibp(ibp)->sm_trap_qp;
93
94 agent = ibp->send_agent;
95 if (!agent)
96 return;
97
98 /* o14-3.2.1 */
99 if (ppd_from_ibp(ibp)->lstate != IB_PORT_ACTIVE)
100 return;
101
102 /* o14-2 */
103 if (ibp->trap_timeout && time_before(jiffies, ibp->trap_timeout))
104 return;
105
106 pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY);
107 if (pkey_idx < 0) {
108 pr_warn("%s: failed to find limited mgmt pkey, defaulting 0x%x\n",
109 __func__, hfi1_get_pkey(ibp, 1));
110 pkey_idx = 1;
111 }
112
113 send_buf = ib_create_send_mad(agent, qpn, pkey_idx, 0,
114 IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
115 GFP_ATOMIC, IB_MGMT_BASE_VERSION);
116 if (IS_ERR(send_buf))
117 return;
118
119 smp = send_buf->mad;
120 smp->base_version = IB_MGMT_BASE_VERSION;
121 smp->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
122 smp->class_version = 1;
123 smp->method = IB_MGMT_METHOD_TRAP;
124 ibp->tid++;
125 smp->tid = cpu_to_be64(ibp->tid);
126 smp->attr_id = IB_SMP_ATTR_NOTICE;
127 /* o14-1: smp->mkey = 0; */
128 memcpy(smp->data, data, len);
129
130 spin_lock_irqsave(&ibp->lock, flags);
131 if (!ibp->sm_ah) {
132 if (ibp->sm_lid != be16_to_cpu(IB_LID_PERMISSIVE)) {
133 struct ib_ah *ah;
134
135 ah = hfi1_create_qp0_ah(ibp, ibp->sm_lid);
136 if (IS_ERR(ah))
137 ret = PTR_ERR(ah);
138 else {
139 send_buf->ah = ah;
140 ibp->sm_ah = to_iah(ah);
141 ret = 0;
142 }
143 } else
144 ret = -EINVAL;
145 } else {
146 send_buf->ah = &ibp->sm_ah->ibah;
147 ret = 0;
148 }
149 spin_unlock_irqrestore(&ibp->lock, flags);
150
151 if (!ret)
152 ret = ib_post_send_mad(send_buf, NULL);
153 if (!ret) {
154 /* 4.096 usec. */
155 timeout = (4096 * (1UL << ibp->subnet_timeout)) / 1000;
156 ibp->trap_timeout = jiffies + usecs_to_jiffies(timeout);
157 } else {
158 ib_free_send_mad(send_buf);
159 ibp->trap_timeout = 0;
160 }
161 }
162
163 /*
164 * Send a bad [PQ]_Key trap (ch. 14.3.8).
165 */
hfi1_bad_pqkey(struct hfi1_ibport * ibp,__be16 trap_num,u32 key,u32 sl,u32 qp1,u32 qp2,__be16 lid1,__be16 lid2)166 void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
167 u32 qp1, u32 qp2, __be16 lid1, __be16 lid2)
168 {
169 struct ib_mad_notice_attr data;
170
171 if (trap_num == IB_NOTICE_TRAP_BAD_PKEY)
172 ibp->pkey_violations++;
173 else
174 ibp->qkey_violations++;
175 ibp->n_pkt_drops++;
176
177 /* Send violation trap */
178 data.generic_type = IB_NOTICE_TYPE_SECURITY;
179 data.prod_type_msb = 0;
180 data.prod_type_lsb = IB_NOTICE_PROD_CA;
181 data.trap_num = trap_num;
182 data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
183 data.toggle_count = 0;
184 memset(&data.details, 0, sizeof(data.details));
185 data.details.ntc_257_258.lid1 = lid1;
186 data.details.ntc_257_258.lid2 = lid2;
187 data.details.ntc_257_258.key = cpu_to_be32(key);
188 data.details.ntc_257_258.sl_qp1 = cpu_to_be32((sl << 28) | qp1);
189 data.details.ntc_257_258.qp2 = cpu_to_be32(qp2);
190
191 send_trap(ibp, &data, sizeof(data));
192 }
193
194 /*
195 * Send a bad M_Key trap (ch. 14.3.9).
196 */
bad_mkey(struct hfi1_ibport * ibp,struct ib_mad_hdr * mad,__be64 mkey,__be32 dr_slid,u8 return_path[],u8 hop_cnt)197 static void bad_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
198 __be64 mkey, __be32 dr_slid, u8 return_path[], u8 hop_cnt)
199 {
200 struct ib_mad_notice_attr data;
201
202 /* Send violation trap */
203 data.generic_type = IB_NOTICE_TYPE_SECURITY;
204 data.prod_type_msb = 0;
205 data.prod_type_lsb = IB_NOTICE_PROD_CA;
206 data.trap_num = IB_NOTICE_TRAP_BAD_MKEY;
207 data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
208 data.toggle_count = 0;
209 memset(&data.details, 0, sizeof(data.details));
210 data.details.ntc_256.lid = data.issuer_lid;
211 data.details.ntc_256.method = mad->method;
212 data.details.ntc_256.attr_id = mad->attr_id;
213 data.details.ntc_256.attr_mod = mad->attr_mod;
214 data.details.ntc_256.mkey = mkey;
215 if (mad->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
216
217 data.details.ntc_256.dr_slid = (__force __be16)dr_slid;
218 data.details.ntc_256.dr_trunc_hop = IB_NOTICE_TRAP_DR_NOTICE;
219 if (hop_cnt > ARRAY_SIZE(data.details.ntc_256.dr_rtn_path)) {
220 data.details.ntc_256.dr_trunc_hop |=
221 IB_NOTICE_TRAP_DR_TRUNC;
222 hop_cnt = ARRAY_SIZE(data.details.ntc_256.dr_rtn_path);
223 }
224 data.details.ntc_256.dr_trunc_hop |= hop_cnt;
225 memcpy(data.details.ntc_256.dr_rtn_path, return_path,
226 hop_cnt);
227 }
228
229 send_trap(ibp, &data, sizeof(data));
230 }
231
232 /*
233 * Send a Port Capability Mask Changed trap (ch. 14.3.11).
234 */
hfi1_cap_mask_chg(struct hfi1_ibport * ibp)235 void hfi1_cap_mask_chg(struct hfi1_ibport *ibp)
236 {
237 struct ib_mad_notice_attr data;
238
239 data.generic_type = IB_NOTICE_TYPE_INFO;
240 data.prod_type_msb = 0;
241 data.prod_type_lsb = IB_NOTICE_PROD_CA;
242 data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG;
243 data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
244 data.toggle_count = 0;
245 memset(&data.details, 0, sizeof(data.details));
246 data.details.ntc_144.lid = data.issuer_lid;
247 data.details.ntc_144.new_cap_mask = cpu_to_be32(ibp->port_cap_flags);
248
249 send_trap(ibp, &data, sizeof(data));
250 }
251
252 /*
253 * Send a System Image GUID Changed trap (ch. 14.3.12).
254 */
hfi1_sys_guid_chg(struct hfi1_ibport * ibp)255 void hfi1_sys_guid_chg(struct hfi1_ibport *ibp)
256 {
257 struct ib_mad_notice_attr data;
258
259 data.generic_type = IB_NOTICE_TYPE_INFO;
260 data.prod_type_msb = 0;
261 data.prod_type_lsb = IB_NOTICE_PROD_CA;
262 data.trap_num = IB_NOTICE_TRAP_SYS_GUID_CHG;
263 data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
264 data.toggle_count = 0;
265 memset(&data.details, 0, sizeof(data.details));
266 data.details.ntc_145.lid = data.issuer_lid;
267 data.details.ntc_145.new_sys_guid = ib_hfi1_sys_image_guid;
268
269 send_trap(ibp, &data, sizeof(data));
270 }
271
272 /*
273 * Send a Node Description Changed trap (ch. 14.3.13).
274 */
hfi1_node_desc_chg(struct hfi1_ibport * ibp)275 void hfi1_node_desc_chg(struct hfi1_ibport *ibp)
276 {
277 struct ib_mad_notice_attr data;
278
279 data.generic_type = IB_NOTICE_TYPE_INFO;
280 data.prod_type_msb = 0;
281 data.prod_type_lsb = IB_NOTICE_PROD_CA;
282 data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG;
283 data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
284 data.toggle_count = 0;
285 memset(&data.details, 0, sizeof(data.details));
286 data.details.ntc_144.lid = data.issuer_lid;
287 data.details.ntc_144.local_changes = 1;
288 data.details.ntc_144.change_flags = IB_NOTICE_TRAP_NODE_DESC_CHG;
289
290 send_trap(ibp, &data, sizeof(data));
291 }
292
__subn_get_opa_nodedesc(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)293 static int __subn_get_opa_nodedesc(struct opa_smp *smp, u32 am,
294 u8 *data, struct ib_device *ibdev,
295 u8 port, u32 *resp_len)
296 {
297 struct opa_node_description *nd;
298
299 if (am) {
300 smp->status |= IB_SMP_INVALID_FIELD;
301 return reply((struct ib_mad_hdr *)smp);
302 }
303
304 nd = (struct opa_node_description *)data;
305
306 memcpy(nd->data, ibdev->node_desc, sizeof(nd->data));
307
308 if (resp_len)
309 *resp_len += sizeof(*nd);
310
311 return reply((struct ib_mad_hdr *)smp);
312 }
313
__subn_get_opa_nodeinfo(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)314 static int __subn_get_opa_nodeinfo(struct opa_smp *smp, u32 am, u8 *data,
315 struct ib_device *ibdev, u8 port,
316 u32 *resp_len)
317 {
318 struct opa_node_info *ni;
319 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
320 unsigned pidx = port - 1; /* IB number port from 1, hw from 0 */
321
322 ni = (struct opa_node_info *)data;
323
324 /* GUID 0 is illegal */
325 if (am || pidx >= dd->num_pports || dd->pport[pidx].guid == 0) {
326 smp->status |= IB_SMP_INVALID_FIELD;
327 return reply((struct ib_mad_hdr *)smp);
328 }
329
330 ni->port_guid = cpu_to_be64(dd->pport[pidx].guid);
331 ni->base_version = OPA_MGMT_BASE_VERSION;
332 ni->class_version = OPA_SMI_CLASS_VERSION;
333 ni->node_type = 1; /* channel adapter */
334 ni->num_ports = ibdev->phys_port_cnt;
335 /* This is already in network order */
336 ni->system_image_guid = ib_hfi1_sys_image_guid;
337 /* Use first-port GUID as node */
338 ni->node_guid = cpu_to_be64(dd->pport->guid);
339 ni->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd));
340 ni->device_id = cpu_to_be16(dd->pcidev->device);
341 ni->revision = cpu_to_be32(dd->minrev);
342 ni->local_port_num = port;
343 ni->vendor_id[0] = dd->oui1;
344 ni->vendor_id[1] = dd->oui2;
345 ni->vendor_id[2] = dd->oui3;
346
347 if (resp_len)
348 *resp_len += sizeof(*ni);
349
350 return reply((struct ib_mad_hdr *)smp);
351 }
352
subn_get_nodeinfo(struct ib_smp * smp,struct ib_device * ibdev,u8 port)353 static int subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev,
354 u8 port)
355 {
356 struct ib_node_info *nip = (struct ib_node_info *)&smp->data;
357 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
358 unsigned pidx = port - 1; /* IB number port from 1, hw from 0 */
359
360 /* GUID 0 is illegal */
361 if (smp->attr_mod || pidx >= dd->num_pports ||
362 dd->pport[pidx].guid == 0)
363 smp->status |= IB_SMP_INVALID_FIELD;
364 else
365 nip->port_guid = cpu_to_be64(dd->pport[pidx].guid);
366
367 nip->base_version = OPA_MGMT_BASE_VERSION;
368 nip->class_version = OPA_SMI_CLASS_VERSION;
369 nip->node_type = 1; /* channel adapter */
370 nip->num_ports = ibdev->phys_port_cnt;
371 /* This is already in network order */
372 nip->sys_guid = ib_hfi1_sys_image_guid;
373 /* Use first-port GUID as node */
374 nip->node_guid = cpu_to_be64(dd->pport->guid);
375 nip->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd));
376 nip->device_id = cpu_to_be16(dd->pcidev->device);
377 nip->revision = cpu_to_be32(dd->minrev);
378 nip->local_port_num = port;
379 nip->vendor_id[0] = dd->oui1;
380 nip->vendor_id[1] = dd->oui2;
381 nip->vendor_id[2] = dd->oui3;
382
383 return reply((struct ib_mad_hdr *)smp);
384 }
385
set_link_width_enabled(struct hfi1_pportdata * ppd,u32 w)386 static void set_link_width_enabled(struct hfi1_pportdata *ppd, u32 w)
387 {
388 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_ENB, w);
389 }
390
set_link_width_downgrade_enabled(struct hfi1_pportdata * ppd,u32 w)391 static void set_link_width_downgrade_enabled(struct hfi1_pportdata *ppd, u32 w)
392 {
393 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_DG_ENB, w);
394 }
395
set_link_speed_enabled(struct hfi1_pportdata * ppd,u32 s)396 static void set_link_speed_enabled(struct hfi1_pportdata *ppd, u32 s)
397 {
398 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_SPD_ENB, s);
399 }
400
check_mkey(struct hfi1_ibport * ibp,struct ib_mad_hdr * mad,int mad_flags,__be64 mkey,__be32 dr_slid,u8 return_path[],u8 hop_cnt)401 static int check_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
402 int mad_flags, __be64 mkey, __be32 dr_slid,
403 u8 return_path[], u8 hop_cnt)
404 {
405 int valid_mkey = 0;
406 int ret = 0;
407
408 /* Is the mkey in the process of expiring? */
409 if (ibp->mkey_lease_timeout &&
410 time_after_eq(jiffies, ibp->mkey_lease_timeout)) {
411 /* Clear timeout and mkey protection field. */
412 ibp->mkey_lease_timeout = 0;
413 ibp->mkeyprot = 0;
414 }
415
416 if ((mad_flags & IB_MAD_IGNORE_MKEY) || ibp->mkey == 0 ||
417 ibp->mkey == mkey)
418 valid_mkey = 1;
419
420 /* Unset lease timeout on any valid Get/Set/TrapRepress */
421 if (valid_mkey && ibp->mkey_lease_timeout &&
422 (mad->method == IB_MGMT_METHOD_GET ||
423 mad->method == IB_MGMT_METHOD_SET ||
424 mad->method == IB_MGMT_METHOD_TRAP_REPRESS))
425 ibp->mkey_lease_timeout = 0;
426
427 if (!valid_mkey) {
428 switch (mad->method) {
429 case IB_MGMT_METHOD_GET:
430 /* Bad mkey not a violation below level 2 */
431 if (ibp->mkeyprot < 2)
432 break;
433 case IB_MGMT_METHOD_SET:
434 case IB_MGMT_METHOD_TRAP_REPRESS:
435 if (ibp->mkey_violations != 0xFFFF)
436 ++ibp->mkey_violations;
437 if (!ibp->mkey_lease_timeout && ibp->mkey_lease_period)
438 ibp->mkey_lease_timeout = jiffies +
439 ibp->mkey_lease_period * HZ;
440 /* Generate a trap notice. */
441 bad_mkey(ibp, mad, mkey, dr_slid, return_path,
442 hop_cnt);
443 ret = 1;
444 }
445 }
446
447 return ret;
448 }
449
450 /*
451 * The SMA caches reads from LCB registers in case the LCB is unavailable.
452 * (The LCB is unavailable in certain link states, for example.)
453 */
454 struct lcb_datum {
455 u32 off;
456 u64 val;
457 };
458
459 static struct lcb_datum lcb_cache[] = {
460 { DC_LCB_STS_ROUND_TRIP_LTP_CNT, 0 },
461 };
462
write_lcb_cache(u32 off,u64 val)463 static int write_lcb_cache(u32 off, u64 val)
464 {
465 int i;
466
467 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) {
468 if (lcb_cache[i].off == off) {
469 lcb_cache[i].val = val;
470 return 0;
471 }
472 }
473
474 pr_warn("%s bad offset 0x%x\n", __func__, off);
475 return -1;
476 }
477
read_lcb_cache(u32 off,u64 * val)478 static int read_lcb_cache(u32 off, u64 *val)
479 {
480 int i;
481
482 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) {
483 if (lcb_cache[i].off == off) {
484 *val = lcb_cache[i].val;
485 return 0;
486 }
487 }
488
489 pr_warn("%s bad offset 0x%x\n", __func__, off);
490 return -1;
491 }
492
read_ltp_rtt(struct hfi1_devdata * dd)493 void read_ltp_rtt(struct hfi1_devdata *dd)
494 {
495 u64 reg;
496
497 if (read_lcb_csr(dd, DC_LCB_STS_ROUND_TRIP_LTP_CNT, ®))
498 dd_dev_err(dd, "%s: unable to read LTP RTT\n", __func__);
499 else
500 write_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, reg);
501 }
502
__opa_porttype(struct hfi1_pportdata * ppd)503 static u8 __opa_porttype(struct hfi1_pportdata *ppd)
504 {
505 if (qsfp_mod_present(ppd)) {
506 if (ppd->qsfp_info.cache_valid)
507 return OPA_PORT_TYPE_STANDARD;
508 return OPA_PORT_TYPE_DISCONNECTED;
509 }
510 return OPA_PORT_TYPE_UNKNOWN;
511 }
512
__subn_get_opa_portinfo(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)513 static int __subn_get_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
514 struct ib_device *ibdev, u8 port,
515 u32 *resp_len)
516 {
517 int i;
518 struct hfi1_devdata *dd;
519 struct hfi1_pportdata *ppd;
520 struct hfi1_ibport *ibp;
521 struct opa_port_info *pi = (struct opa_port_info *)data;
522 u8 mtu;
523 u8 credit_rate;
524 u32 state;
525 u32 num_ports = OPA_AM_NPORT(am);
526 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
527 u32 buffer_units;
528 u64 tmp = 0;
529
530 if (num_ports != 1) {
531 smp->status |= IB_SMP_INVALID_FIELD;
532 return reply((struct ib_mad_hdr *)smp);
533 }
534
535 dd = dd_from_ibdev(ibdev);
536 /* IB numbers ports from 1, hw from 0 */
537 ppd = dd->pport + (port - 1);
538 ibp = &ppd->ibport_data;
539
540 if (ppd->vls_supported/2 > ARRAY_SIZE(pi->neigh_mtu.pvlx_to_mtu) ||
541 ppd->vls_supported > ARRAY_SIZE(dd->vld)) {
542 smp->status |= IB_SMP_INVALID_FIELD;
543 return reply((struct ib_mad_hdr *)smp);
544 }
545
546 pi->lid = cpu_to_be32(ppd->lid);
547
548 /* Only return the mkey if the protection field allows it. */
549 if (!(smp->method == IB_MGMT_METHOD_GET &&
550 ibp->mkey != smp->mkey &&
551 ibp->mkeyprot == 1))
552 pi->mkey = ibp->mkey;
553
554 pi->subnet_prefix = ibp->gid_prefix;
555 pi->sm_lid = cpu_to_be32(ibp->sm_lid);
556 pi->ib_cap_mask = cpu_to_be32(ibp->port_cap_flags);
557 pi->mkey_lease_period = cpu_to_be16(ibp->mkey_lease_period);
558 pi->sm_trap_qp = cpu_to_be32(ppd->sm_trap_qp);
559 pi->sa_qp = cpu_to_be32(ppd->sa_qp);
560
561 pi->link_width.enabled = cpu_to_be16(ppd->link_width_enabled);
562 pi->link_width.supported = cpu_to_be16(ppd->link_width_supported);
563 pi->link_width.active = cpu_to_be16(ppd->link_width_active);
564
565 pi->link_width_downgrade.supported =
566 cpu_to_be16(ppd->link_width_downgrade_supported);
567 pi->link_width_downgrade.enabled =
568 cpu_to_be16(ppd->link_width_downgrade_enabled);
569 pi->link_width_downgrade.tx_active =
570 cpu_to_be16(ppd->link_width_downgrade_tx_active);
571 pi->link_width_downgrade.rx_active =
572 cpu_to_be16(ppd->link_width_downgrade_rx_active);
573
574 pi->link_speed.supported = cpu_to_be16(ppd->link_speed_supported);
575 pi->link_speed.active = cpu_to_be16(ppd->link_speed_active);
576 pi->link_speed.enabled = cpu_to_be16(ppd->link_speed_enabled);
577
578 state = driver_lstate(ppd);
579
580 if (start_of_sm_config && (state == IB_PORT_INIT))
581 ppd->is_sm_config_started = 1;
582
583 pi->port_phys_conf = __opa_porttype(ppd) & 0xf;
584
585 #if PI_LED_ENABLE_SUP
586 pi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4;
587 pi->port_states.ledenable_offlinereason |=
588 ppd->is_sm_config_started << 5;
589 pi->port_states.ledenable_offlinereason |=
590 ppd->offline_disabled_reason & OPA_PI_MASK_OFFLINE_REASON;
591 #else
592 pi->port_states.offline_reason = ppd->neighbor_normal << 4;
593 pi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
594 pi->port_states.offline_reason |= ppd->offline_disabled_reason &
595 OPA_PI_MASK_OFFLINE_REASON;
596 #endif /* PI_LED_ENABLE_SUP */
597
598 pi->port_states.portphysstate_portstate =
599 (hfi1_ibphys_portstate(ppd) << 4) | state;
600
601 pi->mkeyprotect_lmc = (ibp->mkeyprot << 6) | ppd->lmc;
602
603 memset(pi->neigh_mtu.pvlx_to_mtu, 0, sizeof(pi->neigh_mtu.pvlx_to_mtu));
604 for (i = 0; i < ppd->vls_supported; i++) {
605 mtu = mtu_to_enum(dd->vld[i].mtu, HFI1_DEFAULT_ACTIVE_MTU);
606 if ((i % 2) == 0)
607 pi->neigh_mtu.pvlx_to_mtu[i/2] |= (mtu << 4);
608 else
609 pi->neigh_mtu.pvlx_to_mtu[i/2] |= mtu;
610 }
611 /* don't forget VL 15 */
612 mtu = mtu_to_enum(dd->vld[15].mtu, 2048);
613 pi->neigh_mtu.pvlx_to_mtu[15/2] |= mtu;
614 pi->smsl = ibp->sm_sl & OPA_PI_MASK_SMSL;
615 pi->operational_vls = hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS);
616 pi->partenforce_filterraw |=
617 (ppd->linkinit_reason & OPA_PI_MASK_LINKINIT_REASON);
618 if (ppd->part_enforce & HFI1_PART_ENFORCE_IN)
619 pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_IN;
620 if (ppd->part_enforce & HFI1_PART_ENFORCE_OUT)
621 pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_OUT;
622 pi->mkey_violations = cpu_to_be16(ibp->mkey_violations);
623 /* P_KeyViolations are counted by hardware. */
624 pi->pkey_violations = cpu_to_be16(ibp->pkey_violations);
625 pi->qkey_violations = cpu_to_be16(ibp->qkey_violations);
626
627 pi->vl.cap = ppd->vls_supported;
628 pi->vl.high_limit = cpu_to_be16(ibp->vl_high_limit);
629 pi->vl.arb_high_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_CAP);
630 pi->vl.arb_low_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_LOW_CAP);
631
632 pi->clientrereg_subnettimeout = ibp->subnet_timeout;
633
634 pi->port_link_mode = cpu_to_be16(OPA_PORT_LINK_MODE_OPA << 10 |
635 OPA_PORT_LINK_MODE_OPA << 5 |
636 OPA_PORT_LINK_MODE_OPA);
637
638 pi->port_ltp_crc_mode = cpu_to_be16(ppd->port_ltp_crc_mode);
639
640 pi->port_mode = cpu_to_be16(
641 ppd->is_active_optimize_enabled ?
642 OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE : 0);
643
644 pi->port_packet_format.supported =
645 cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B);
646 pi->port_packet_format.enabled =
647 cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B);
648
649 /* flit_control.interleave is (OPA V1, version .76):
650 * bits use
651 * ---- ---
652 * 2 res
653 * 2 DistanceSupported
654 * 2 DistanceEnabled
655 * 5 MaxNextLevelTxEnabled
656 * 5 MaxNestLevelRxSupported
657 *
658 * HFI supports only "distance mode 1" (see OPA V1, version .76,
659 * section 9.6.2), so set DistanceSupported, DistanceEnabled
660 * to 0x1.
661 */
662 pi->flit_control.interleave = cpu_to_be16(0x1400);
663
664 pi->link_down_reason = ppd->local_link_down_reason.sma;
665 pi->neigh_link_down_reason = ppd->neigh_link_down_reason.sma;
666 pi->port_error_action = cpu_to_be32(ppd->port_error_action);
667 pi->mtucap = mtu_to_enum(hfi1_max_mtu, IB_MTU_4096);
668
669 /* 32.768 usec. response time (guessing) */
670 pi->resptimevalue = 3;
671
672 pi->local_port_num = port;
673
674 /* buffer info for FM */
675 pi->overall_buffer_space = cpu_to_be16(dd->link_credits);
676
677 pi->neigh_node_guid = cpu_to_be64(ppd->neighbor_guid);
678 pi->neigh_port_num = ppd->neighbor_port_number;
679 pi->port_neigh_mode =
680 (ppd->neighbor_type & OPA_PI_MASK_NEIGH_NODE_TYPE) |
681 (ppd->mgmt_allowed ? OPA_PI_MASK_NEIGH_MGMT_ALLOWED : 0) |
682 (ppd->neighbor_fm_security ?
683 OPA_PI_MASK_NEIGH_FW_AUTH_BYPASS : 0);
684
685 /* HFIs shall always return VL15 credits to their
686 * neighbor in a timely manner, without any credit return pacing.
687 */
688 credit_rate = 0;
689 buffer_units = (dd->vau) & OPA_PI_MASK_BUF_UNIT_BUF_ALLOC;
690 buffer_units |= (dd->vcu << 3) & OPA_PI_MASK_BUF_UNIT_CREDIT_ACK;
691 buffer_units |= (credit_rate << 6) &
692 OPA_PI_MASK_BUF_UNIT_VL15_CREDIT_RATE;
693 buffer_units |= (dd->vl15_init << 11) & OPA_PI_MASK_BUF_UNIT_VL15_INIT;
694 pi->buffer_units = cpu_to_be32(buffer_units);
695
696 pi->opa_cap_mask = cpu_to_be16(OPA_CAP_MASK3_IsSharedSpaceSupported);
697
698 /* HFI supports a replay buffer 128 LTPs in size */
699 pi->replay_depth.buffer = 0x80;
700 /* read the cached value of DC_LCB_STS_ROUND_TRIP_LTP_CNT */
701 read_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, &tmp);
702
703 /* this counter is 16 bits wide, but the replay_depth.wire
704 * variable is only 8 bits */
705 if (tmp > 0xff)
706 tmp = 0xff;
707 pi->replay_depth.wire = tmp;
708
709 if (resp_len)
710 *resp_len += sizeof(struct opa_port_info);
711
712 return reply((struct ib_mad_hdr *)smp);
713 }
714
715 /**
716 * get_pkeys - return the PKEY table
717 * @dd: the hfi1_ib device
718 * @port: the IB port number
719 * @pkeys: the pkey table is placed here
720 */
get_pkeys(struct hfi1_devdata * dd,u8 port,u16 * pkeys)721 static int get_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys)
722 {
723 struct hfi1_pportdata *ppd = dd->pport + port - 1;
724
725 memcpy(pkeys, ppd->pkeys, sizeof(ppd->pkeys));
726
727 return 0;
728 }
729
__subn_get_opa_pkeytable(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)730 static int __subn_get_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data,
731 struct ib_device *ibdev, u8 port,
732 u32 *resp_len)
733 {
734 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
735 u32 n_blocks_req = OPA_AM_NBLK(am);
736 u32 start_block = am & 0x7ff;
737 __be16 *p;
738 u16 *q;
739 int i;
740 u16 n_blocks_avail;
741 unsigned npkeys = hfi1_get_npkeys(dd);
742 size_t size;
743
744 if (n_blocks_req == 0) {
745 pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n",
746 port, start_block, n_blocks_req);
747 smp->status |= IB_SMP_INVALID_FIELD;
748 return reply((struct ib_mad_hdr *)smp);
749 }
750
751 n_blocks_avail = (u16) (npkeys/OPA_PARTITION_TABLE_BLK_SIZE) + 1;
752
753 size = (n_blocks_req * OPA_PARTITION_TABLE_BLK_SIZE) * sizeof(u16);
754
755 if (start_block + n_blocks_req > n_blocks_avail ||
756 n_blocks_req > OPA_NUM_PKEY_BLOCKS_PER_SMP) {
757 pr_warn("OPA Get PKey AM Invalid : s 0x%x; req 0x%x; "
758 "avail 0x%x; blk/smp 0x%lx\n",
759 start_block, n_blocks_req, n_blocks_avail,
760 OPA_NUM_PKEY_BLOCKS_PER_SMP);
761 smp->status |= IB_SMP_INVALID_FIELD;
762 return reply((struct ib_mad_hdr *)smp);
763 }
764
765 p = (__be16 *) data;
766 q = (u16 *)data;
767 /* get the real pkeys if we are requesting the first block */
768 if (start_block == 0) {
769 get_pkeys(dd, port, q);
770 for (i = 0; i < npkeys; i++)
771 p[i] = cpu_to_be16(q[i]);
772 if (resp_len)
773 *resp_len += size;
774 } else
775 smp->status |= IB_SMP_INVALID_FIELD;
776
777 return reply((struct ib_mad_hdr *)smp);
778 }
779
780 enum {
781 HFI_TRANSITION_DISALLOWED,
782 HFI_TRANSITION_IGNORED,
783 HFI_TRANSITION_ALLOWED,
784 HFI_TRANSITION_UNDEFINED,
785 };
786
787 /*
788 * Use shortened names to improve readability of
789 * {logical,physical}_state_transitions
790 */
791 enum {
792 __D = HFI_TRANSITION_DISALLOWED,
793 __I = HFI_TRANSITION_IGNORED,
794 __A = HFI_TRANSITION_ALLOWED,
795 __U = HFI_TRANSITION_UNDEFINED,
796 };
797
798 /*
799 * IB_PORTPHYSSTATE_POLLING (2) through OPA_PORTPHYSSTATE_MAX (11) are
800 * represented in physical_state_transitions.
801 */
802 #define __N_PHYSTATES (OPA_PORTPHYSSTATE_MAX - IB_PORTPHYSSTATE_POLLING + 1)
803
804 /*
805 * Within physical_state_transitions, rows represent "old" states,
806 * columns "new" states, and physical_state_transitions.allowed[old][new]
807 * indicates if the transition from old state to new state is legal (see
808 * OPAg1v1, Table 6-4).
809 */
810 static const struct {
811 u8 allowed[__N_PHYSTATES][__N_PHYSTATES];
812 } physical_state_transitions = {
813 {
814 /* 2 3 4 5 6 7 8 9 10 11 */
815 /* 2 */ { __A, __A, __D, __D, __D, __D, __D, __D, __D, __D },
816 /* 3 */ { __A, __I, __D, __D, __D, __D, __D, __D, __D, __A },
817 /* 4 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
818 /* 5 */ { __A, __A, __D, __I, __D, __D, __D, __D, __D, __D },
819 /* 6 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
820 /* 7 */ { __D, __A, __D, __D, __D, __I, __D, __D, __D, __D },
821 /* 8 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
822 /* 9 */ { __I, __A, __D, __D, __D, __D, __D, __I, __D, __D },
823 /*10 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
824 /*11 */ { __D, __A, __D, __D, __D, __D, __D, __D, __D, __I },
825 }
826 };
827
828 /*
829 * IB_PORT_DOWN (1) through IB_PORT_ACTIVE_DEFER (5) are represented
830 * logical_state_transitions
831 */
832
833 #define __N_LOGICAL_STATES (IB_PORT_ACTIVE_DEFER - IB_PORT_DOWN + 1)
834
835 /*
836 * Within logical_state_transitions rows represent "old" states,
837 * columns "new" states, and logical_state_transitions.allowed[old][new]
838 * indicates if the transition from old state to new state is legal (see
839 * OPAg1v1, Table 9-12).
840 */
841 static const struct {
842 u8 allowed[__N_LOGICAL_STATES][__N_LOGICAL_STATES];
843 } logical_state_transitions = {
844 {
845 /* 1 2 3 4 5 */
846 /* 1 */ { __I, __D, __D, __D, __U},
847 /* 2 */ { __D, __I, __A, __D, __U},
848 /* 3 */ { __D, __D, __I, __A, __U},
849 /* 4 */ { __D, __D, __I, __I, __U},
850 /* 5 */ { __U, __U, __U, __U, __U},
851 }
852 };
853
logical_transition_allowed(int old,int new)854 static int logical_transition_allowed(int old, int new)
855 {
856 if (old < IB_PORT_NOP || old > IB_PORT_ACTIVE_DEFER ||
857 new < IB_PORT_NOP || new > IB_PORT_ACTIVE_DEFER) {
858 pr_warn("invalid logical state(s) (old %d new %d)\n",
859 old, new);
860 return HFI_TRANSITION_UNDEFINED;
861 }
862
863 if (new == IB_PORT_NOP)
864 return HFI_TRANSITION_ALLOWED; /* always allowed */
865
866 /* adjust states for indexing into logical_state_transitions */
867 old -= IB_PORT_DOWN;
868 new -= IB_PORT_DOWN;
869
870 if (old < 0 || new < 0)
871 return HFI_TRANSITION_UNDEFINED;
872 return logical_state_transitions.allowed[old][new];
873 }
874
physical_transition_allowed(int old,int new)875 static int physical_transition_allowed(int old, int new)
876 {
877 if (old < IB_PORTPHYSSTATE_NOP || old > OPA_PORTPHYSSTATE_MAX ||
878 new < IB_PORTPHYSSTATE_NOP || new > OPA_PORTPHYSSTATE_MAX) {
879 pr_warn("invalid physical state(s) (old %d new %d)\n",
880 old, new);
881 return HFI_TRANSITION_UNDEFINED;
882 }
883
884 if (new == IB_PORTPHYSSTATE_NOP)
885 return HFI_TRANSITION_ALLOWED; /* always allowed */
886
887 /* adjust states for indexing into physical_state_transitions */
888 old -= IB_PORTPHYSSTATE_POLLING;
889 new -= IB_PORTPHYSSTATE_POLLING;
890
891 if (old < 0 || new < 0)
892 return HFI_TRANSITION_UNDEFINED;
893 return physical_state_transitions.allowed[old][new];
894 }
895
port_states_transition_allowed(struct hfi1_pportdata * ppd,u32 logical_new,u32 physical_new)896 static int port_states_transition_allowed(struct hfi1_pportdata *ppd,
897 u32 logical_new, u32 physical_new)
898 {
899 u32 physical_old = driver_physical_state(ppd);
900 u32 logical_old = driver_logical_state(ppd);
901 int ret, logical_allowed, physical_allowed;
902
903 logical_allowed = ret =
904 logical_transition_allowed(logical_old, logical_new);
905
906 if (ret == HFI_TRANSITION_DISALLOWED ||
907 ret == HFI_TRANSITION_UNDEFINED) {
908 pr_warn("invalid logical state transition %s -> %s\n",
909 opa_lstate_name(logical_old),
910 opa_lstate_name(logical_new));
911 return ret;
912 }
913
914 physical_allowed = ret =
915 physical_transition_allowed(physical_old, physical_new);
916
917 if (ret == HFI_TRANSITION_DISALLOWED ||
918 ret == HFI_TRANSITION_UNDEFINED) {
919 pr_warn("invalid physical state transition %s -> %s\n",
920 opa_pstate_name(physical_old),
921 opa_pstate_name(physical_new));
922 return ret;
923 }
924
925 if (logical_allowed == HFI_TRANSITION_IGNORED &&
926 physical_allowed == HFI_TRANSITION_IGNORED)
927 return HFI_TRANSITION_IGNORED;
928
929 /*
930 * Either physical_allowed or logical_allowed is
931 * HFI_TRANSITION_ALLOWED.
932 */
933 return HFI_TRANSITION_ALLOWED;
934 }
935
set_port_states(struct hfi1_pportdata * ppd,struct opa_smp * smp,u32 logical_state,u32 phys_state,int suppress_idle_sma)936 static int set_port_states(struct hfi1_pportdata *ppd, struct opa_smp *smp,
937 u32 logical_state, u32 phys_state,
938 int suppress_idle_sma)
939 {
940 struct hfi1_devdata *dd = ppd->dd;
941 u32 link_state;
942 int ret;
943
944 ret = port_states_transition_allowed(ppd, logical_state, phys_state);
945 if (ret == HFI_TRANSITION_DISALLOWED ||
946 ret == HFI_TRANSITION_UNDEFINED) {
947 /* error message emitted above */
948 smp->status |= IB_SMP_INVALID_FIELD;
949 return 0;
950 }
951
952 if (ret == HFI_TRANSITION_IGNORED)
953 return 0;
954
955 if ((phys_state != IB_PORTPHYSSTATE_NOP) &&
956 !(logical_state == IB_PORT_DOWN ||
957 logical_state == IB_PORT_NOP)){
958 pr_warn("SubnSet(OPA_PortInfo) port state invalid: logical_state 0x%x physical_state 0x%x\n",
959 logical_state, phys_state);
960 smp->status |= IB_SMP_INVALID_FIELD;
961 }
962
963 /*
964 * Logical state changes are summarized in OPAv1g1 spec.,
965 * Table 9-12; physical state changes are summarized in
966 * OPAv1g1 spec., Table 6.4.
967 */
968 switch (logical_state) {
969 case IB_PORT_NOP:
970 if (phys_state == IB_PORTPHYSSTATE_NOP)
971 break;
972 /* FALLTHROUGH */
973 case IB_PORT_DOWN:
974 if (phys_state == IB_PORTPHYSSTATE_NOP)
975 link_state = HLS_DN_DOWNDEF;
976 else if (phys_state == IB_PORTPHYSSTATE_POLLING) {
977 link_state = HLS_DN_POLL;
978 set_link_down_reason(ppd,
979 OPA_LINKDOWN_REASON_FM_BOUNCE, 0,
980 OPA_LINKDOWN_REASON_FM_BOUNCE);
981 } else if (phys_state == IB_PORTPHYSSTATE_DISABLED)
982 link_state = HLS_DN_DISABLE;
983 else {
984 pr_warn("SubnSet(OPA_PortInfo) invalid physical state 0x%x\n",
985 phys_state);
986 smp->status |= IB_SMP_INVALID_FIELD;
987 break;
988 }
989
990 set_link_state(ppd, link_state);
991 if (link_state == HLS_DN_DISABLE &&
992 (ppd->offline_disabled_reason >
993 OPA_LINKDOWN_REASON_SMA_DISABLED ||
994 ppd->offline_disabled_reason ==
995 OPA_LINKDOWN_REASON_NONE))
996 ppd->offline_disabled_reason =
997 OPA_LINKDOWN_REASON_SMA_DISABLED;
998 /*
999 * Don't send a reply if the response would be sent
1000 * through the disabled port.
1001 */
1002 if (link_state == HLS_DN_DISABLE && smp->hop_cnt)
1003 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
1004 break;
1005 case IB_PORT_ARMED:
1006 ret = set_link_state(ppd, HLS_UP_ARMED);
1007 if ((ret == 0) && (suppress_idle_sma == 0))
1008 send_idle_sma(dd, SMA_IDLE_ARM);
1009 break;
1010 case IB_PORT_ACTIVE:
1011 if (ppd->neighbor_normal) {
1012 ret = set_link_state(ppd, HLS_UP_ACTIVE);
1013 if (ret == 0)
1014 send_idle_sma(dd, SMA_IDLE_ACTIVE);
1015 } else {
1016 pr_warn("SubnSet(OPA_PortInfo) Cannot move to Active with NeighborNormal 0\n");
1017 smp->status |= IB_SMP_INVALID_FIELD;
1018 }
1019 break;
1020 default:
1021 pr_warn("SubnSet(OPA_PortInfo) invalid logical state 0x%x\n",
1022 logical_state);
1023 smp->status |= IB_SMP_INVALID_FIELD;
1024 }
1025
1026 return 0;
1027 }
1028
1029 /**
1030 * subn_set_opa_portinfo - set port information
1031 * @smp: the incoming SM packet
1032 * @ibdev: the infiniband device
1033 * @port: the port on the device
1034 *
1035 */
__subn_set_opa_portinfo(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1036 static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
1037 struct ib_device *ibdev, u8 port,
1038 u32 *resp_len)
1039 {
1040 struct opa_port_info *pi = (struct opa_port_info *)data;
1041 struct ib_event event;
1042 struct hfi1_devdata *dd;
1043 struct hfi1_pportdata *ppd;
1044 struct hfi1_ibport *ibp;
1045 u8 clientrereg;
1046 unsigned long flags;
1047 u32 smlid, opa_lid; /* tmp vars to hold LID values */
1048 u16 lid;
1049 u8 ls_old, ls_new, ps_new;
1050 u8 vls;
1051 u8 msl;
1052 u8 crc_enabled;
1053 u16 lse, lwe, mtu;
1054 u32 num_ports = OPA_AM_NPORT(am);
1055 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
1056 int ret, i, invalid = 0, call_set_mtu = 0;
1057 int call_link_downgrade_policy = 0;
1058
1059 if (num_ports != 1) {
1060 smp->status |= IB_SMP_INVALID_FIELD;
1061 return reply((struct ib_mad_hdr *)smp);
1062 }
1063
1064 opa_lid = be32_to_cpu(pi->lid);
1065 if (opa_lid & 0xFFFF0000) {
1066 pr_warn("OPA_PortInfo lid out of range: %X\n", opa_lid);
1067 smp->status |= IB_SMP_INVALID_FIELD;
1068 goto get_only;
1069 }
1070
1071 lid = (u16)(opa_lid & 0x0000FFFF);
1072
1073 smlid = be32_to_cpu(pi->sm_lid);
1074 if (smlid & 0xFFFF0000) {
1075 pr_warn("OPA_PortInfo SM lid out of range: %X\n", smlid);
1076 smp->status |= IB_SMP_INVALID_FIELD;
1077 goto get_only;
1078 }
1079 smlid &= 0x0000FFFF;
1080
1081 clientrereg = (pi->clientrereg_subnettimeout &
1082 OPA_PI_MASK_CLIENT_REREGISTER);
1083
1084 dd = dd_from_ibdev(ibdev);
1085 /* IB numbers ports from 1, hw from 0 */
1086 ppd = dd->pport + (port - 1);
1087 ibp = &ppd->ibport_data;
1088 event.device = ibdev;
1089 event.element.port_num = port;
1090
1091 ls_old = driver_lstate(ppd);
1092
1093 ibp->mkey = pi->mkey;
1094 ibp->gid_prefix = pi->subnet_prefix;
1095 ibp->mkey_lease_period = be16_to_cpu(pi->mkey_lease_period);
1096
1097 /* Must be a valid unicast LID address. */
1098 if ((lid == 0 && ls_old > IB_PORT_INIT) ||
1099 lid >= HFI1_MULTICAST_LID_BASE) {
1100 smp->status |= IB_SMP_INVALID_FIELD;
1101 pr_warn("SubnSet(OPA_PortInfo) lid invalid 0x%x\n",
1102 lid);
1103 } else if (ppd->lid != lid ||
1104 ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC)) {
1105 if (ppd->lid != lid)
1106 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LID_CHANGE_BIT);
1107 if (ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC))
1108 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LMC_CHANGE_BIT);
1109 hfi1_set_lid(ppd, lid, pi->mkeyprotect_lmc & OPA_PI_MASK_LMC);
1110 event.event = IB_EVENT_LID_CHANGE;
1111 ib_dispatch_event(&event);
1112 }
1113
1114 msl = pi->smsl & OPA_PI_MASK_SMSL;
1115 if (pi->partenforce_filterraw & OPA_PI_MASK_LINKINIT_REASON)
1116 ppd->linkinit_reason =
1117 (pi->partenforce_filterraw &
1118 OPA_PI_MASK_LINKINIT_REASON);
1119 /* enable/disable SW pkey checking as per FM control */
1120 if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_IN)
1121 ppd->part_enforce |= HFI1_PART_ENFORCE_IN;
1122 else
1123 ppd->part_enforce &= ~HFI1_PART_ENFORCE_IN;
1124
1125 if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_OUT)
1126 ppd->part_enforce |= HFI1_PART_ENFORCE_OUT;
1127 else
1128 ppd->part_enforce &= ~HFI1_PART_ENFORCE_OUT;
1129
1130 /* Must be a valid unicast LID address. */
1131 if ((smlid == 0 && ls_old > IB_PORT_INIT) ||
1132 smlid >= HFI1_MULTICAST_LID_BASE) {
1133 smp->status |= IB_SMP_INVALID_FIELD;
1134 pr_warn("SubnSet(OPA_PortInfo) smlid invalid 0x%x\n", smlid);
1135 } else if (smlid != ibp->sm_lid || msl != ibp->sm_sl) {
1136 pr_warn("SubnSet(OPA_PortInfo) smlid 0x%x\n", smlid);
1137 spin_lock_irqsave(&ibp->lock, flags);
1138 if (ibp->sm_ah) {
1139 if (smlid != ibp->sm_lid)
1140 ibp->sm_ah->attr.dlid = smlid;
1141 if (msl != ibp->sm_sl)
1142 ibp->sm_ah->attr.sl = msl;
1143 }
1144 spin_unlock_irqrestore(&ibp->lock, flags);
1145 if (smlid != ibp->sm_lid)
1146 ibp->sm_lid = smlid;
1147 if (msl != ibp->sm_sl)
1148 ibp->sm_sl = msl;
1149 event.event = IB_EVENT_SM_CHANGE;
1150 ib_dispatch_event(&event);
1151 }
1152
1153 if (pi->link_down_reason == 0) {
1154 ppd->local_link_down_reason.sma = 0;
1155 ppd->local_link_down_reason.latest = 0;
1156 }
1157
1158 if (pi->neigh_link_down_reason == 0) {
1159 ppd->neigh_link_down_reason.sma = 0;
1160 ppd->neigh_link_down_reason.latest = 0;
1161 }
1162
1163 ppd->sm_trap_qp = be32_to_cpu(pi->sm_trap_qp);
1164 ppd->sa_qp = be32_to_cpu(pi->sa_qp);
1165
1166 ppd->port_error_action = be32_to_cpu(pi->port_error_action);
1167 lwe = be16_to_cpu(pi->link_width.enabled);
1168 if (lwe) {
1169 if (lwe == OPA_LINK_WIDTH_RESET
1170 || lwe == OPA_LINK_WIDTH_RESET_OLD)
1171 set_link_width_enabled(ppd, ppd->link_width_supported);
1172 else if ((lwe & ~ppd->link_width_supported) == 0)
1173 set_link_width_enabled(ppd, lwe);
1174 else
1175 smp->status |= IB_SMP_INVALID_FIELD;
1176 }
1177 lwe = be16_to_cpu(pi->link_width_downgrade.enabled);
1178 /* LWD.E is always applied - 0 means "disabled" */
1179 if (lwe == OPA_LINK_WIDTH_RESET
1180 || lwe == OPA_LINK_WIDTH_RESET_OLD) {
1181 set_link_width_downgrade_enabled(ppd,
1182 ppd->link_width_downgrade_supported);
1183 } else if ((lwe & ~ppd->link_width_downgrade_supported) == 0) {
1184 /* only set and apply if something changed */
1185 if (lwe != ppd->link_width_downgrade_enabled) {
1186 set_link_width_downgrade_enabled(ppd, lwe);
1187 call_link_downgrade_policy = 1;
1188 }
1189 } else
1190 smp->status |= IB_SMP_INVALID_FIELD;
1191
1192 lse = be16_to_cpu(pi->link_speed.enabled);
1193 if (lse) {
1194 if (lse & be16_to_cpu(pi->link_speed.supported))
1195 set_link_speed_enabled(ppd, lse);
1196 else
1197 smp->status |= IB_SMP_INVALID_FIELD;
1198 }
1199
1200 ibp->mkeyprot = (pi->mkeyprotect_lmc & OPA_PI_MASK_MKEY_PROT_BIT) >> 6;
1201 ibp->vl_high_limit = be16_to_cpu(pi->vl.high_limit) & 0xFF;
1202 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_LIMIT,
1203 ibp->vl_high_limit);
1204
1205 if (ppd->vls_supported/2 > ARRAY_SIZE(pi->neigh_mtu.pvlx_to_mtu) ||
1206 ppd->vls_supported > ARRAY_SIZE(dd->vld)) {
1207 smp->status |= IB_SMP_INVALID_FIELD;
1208 return reply((struct ib_mad_hdr *)smp);
1209 }
1210 for (i = 0; i < ppd->vls_supported; i++) {
1211 if ((i % 2) == 0)
1212 mtu = enum_to_mtu((pi->neigh_mtu.pvlx_to_mtu[i/2] >> 4)
1213 & 0xF);
1214 else
1215 mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[i/2] & 0xF);
1216 if (mtu == 0xffff) {
1217 pr_warn("SubnSet(OPA_PortInfo) mtu invalid %d (0x%x)\n",
1218 mtu,
1219 (pi->neigh_mtu.pvlx_to_mtu[0] >> 4) & 0xF);
1220 smp->status |= IB_SMP_INVALID_FIELD;
1221 mtu = hfi1_max_mtu; /* use a valid MTU */
1222 }
1223 if (dd->vld[i].mtu != mtu) {
1224 dd_dev_info(dd,
1225 "MTU change on vl %d from %d to %d\n",
1226 i, dd->vld[i].mtu, mtu);
1227 dd->vld[i].mtu = mtu;
1228 call_set_mtu++;
1229 }
1230 }
1231 /* As per OPAV1 spec: VL15 must support and be configured
1232 * for operation with a 2048 or larger MTU.
1233 */
1234 mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[15/2] & 0xF);
1235 if (mtu < 2048 || mtu == 0xffff)
1236 mtu = 2048;
1237 if (dd->vld[15].mtu != mtu) {
1238 dd_dev_info(dd,
1239 "MTU change on vl 15 from %d to %d\n",
1240 dd->vld[15].mtu, mtu);
1241 dd->vld[15].mtu = mtu;
1242 call_set_mtu++;
1243 }
1244 if (call_set_mtu)
1245 set_mtu(ppd);
1246
1247 /* Set operational VLs */
1248 vls = pi->operational_vls & OPA_PI_MASK_OPERATIONAL_VL;
1249 if (vls) {
1250 if (vls > ppd->vls_supported) {
1251 pr_warn("SubnSet(OPA_PortInfo) VL's supported invalid %d\n",
1252 pi->operational_vls);
1253 smp->status |= IB_SMP_INVALID_FIELD;
1254 } else {
1255 if (hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS,
1256 vls) == -EINVAL)
1257 smp->status |= IB_SMP_INVALID_FIELD;
1258 }
1259 }
1260
1261 if (pi->mkey_violations == 0)
1262 ibp->mkey_violations = 0;
1263
1264 if (pi->pkey_violations == 0)
1265 ibp->pkey_violations = 0;
1266
1267 if (pi->qkey_violations == 0)
1268 ibp->qkey_violations = 0;
1269
1270 ibp->subnet_timeout =
1271 pi->clientrereg_subnettimeout & OPA_PI_MASK_SUBNET_TIMEOUT;
1272
1273 crc_enabled = be16_to_cpu(pi->port_ltp_crc_mode);
1274 crc_enabled >>= 4;
1275 crc_enabled &= 0xf;
1276
1277 if (crc_enabled != 0)
1278 ppd->port_crc_mode_enabled = port_ltp_to_cap(crc_enabled);
1279
1280 ppd->is_active_optimize_enabled =
1281 !!(be16_to_cpu(pi->port_mode)
1282 & OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE);
1283
1284 ls_new = pi->port_states.portphysstate_portstate &
1285 OPA_PI_MASK_PORT_STATE;
1286 ps_new = (pi->port_states.portphysstate_portstate &
1287 OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4;
1288
1289 if (ls_old == IB_PORT_INIT) {
1290 if (start_of_sm_config) {
1291 if (ls_new == ls_old || (ls_new == IB_PORT_ARMED))
1292 ppd->is_sm_config_started = 1;
1293 } else if (ls_new == IB_PORT_ARMED) {
1294 if (ppd->is_sm_config_started == 0)
1295 invalid = 1;
1296 }
1297 }
1298
1299 /* Handle CLIENT_REREGISTER event b/c SM asked us for it */
1300 if (clientrereg) {
1301 event.event = IB_EVENT_CLIENT_REREGISTER;
1302 ib_dispatch_event(&event);
1303 }
1304
1305 /*
1306 * Do the port state change now that the other link parameters
1307 * have been set.
1308 * Changing the port physical state only makes sense if the link
1309 * is down or is being set to down.
1310 */
1311
1312 ret = set_port_states(ppd, smp, ls_new, ps_new, invalid);
1313 if (ret)
1314 return ret;
1315
1316 ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len);
1317
1318 /* restore re-reg bit per o14-12.2.1 */
1319 pi->clientrereg_subnettimeout |= clientrereg;
1320
1321 /*
1322 * Apply the new link downgrade policy. This may result in a link
1323 * bounce. Do this after everything else so things are settled.
1324 * Possible problem: if setting the port state above fails, then
1325 * the policy change is not applied.
1326 */
1327 if (call_link_downgrade_policy)
1328 apply_link_downgrade_policy(ppd, 0);
1329
1330 return ret;
1331
1332 get_only:
1333 return __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len);
1334 }
1335
1336 /**
1337 * set_pkeys - set the PKEY table for ctxt 0
1338 * @dd: the hfi1_ib device
1339 * @port: the IB port number
1340 * @pkeys: the PKEY table
1341 */
set_pkeys(struct hfi1_devdata * dd,u8 port,u16 * pkeys)1342 static int set_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys)
1343 {
1344 struct hfi1_pportdata *ppd;
1345 int i;
1346 int changed = 0;
1347 int update_includes_mgmt_partition = 0;
1348
1349 /*
1350 * IB port one/two always maps to context zero/one,
1351 * always a kernel context, no locking needed
1352 * If we get here with ppd setup, no need to check
1353 * that rcd is valid.
1354 */
1355 ppd = dd->pport + (port - 1);
1356 /*
1357 * If the update does not include the management pkey, don't do it.
1358 */
1359 for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) {
1360 if (pkeys[i] == LIM_MGMT_P_KEY) {
1361 update_includes_mgmt_partition = 1;
1362 break;
1363 }
1364 }
1365
1366 if (!update_includes_mgmt_partition)
1367 return 1;
1368
1369 for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) {
1370 u16 key = pkeys[i];
1371 u16 okey = ppd->pkeys[i];
1372
1373 if (key == okey)
1374 continue;
1375 /*
1376 * The SM gives us the complete PKey table. We have
1377 * to ensure that we put the PKeys in the matching
1378 * slots.
1379 */
1380 ppd->pkeys[i] = key;
1381 changed = 1;
1382 }
1383
1384 if (changed) {
1385 struct ib_event event;
1386
1387 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0);
1388
1389 event.event = IB_EVENT_PKEY_CHANGE;
1390 event.device = &dd->verbs_dev.ibdev;
1391 event.element.port_num = port;
1392 ib_dispatch_event(&event);
1393 }
1394 return 0;
1395 }
1396
__subn_set_opa_pkeytable(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1397 static int __subn_set_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data,
1398 struct ib_device *ibdev, u8 port,
1399 u32 *resp_len)
1400 {
1401 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1402 u32 n_blocks_sent = OPA_AM_NBLK(am);
1403 u32 start_block = am & 0x7ff;
1404 u16 *p = (u16 *) data;
1405 __be16 *q = (__be16 *)data;
1406 int i;
1407 u16 n_blocks_avail;
1408 unsigned npkeys = hfi1_get_npkeys(dd);
1409
1410 if (n_blocks_sent == 0) {
1411 pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n",
1412 port, start_block, n_blocks_sent);
1413 smp->status |= IB_SMP_INVALID_FIELD;
1414 return reply((struct ib_mad_hdr *)smp);
1415 }
1416
1417 n_blocks_avail = (u16)(npkeys/OPA_PARTITION_TABLE_BLK_SIZE) + 1;
1418
1419 if (start_block + n_blocks_sent > n_blocks_avail ||
1420 n_blocks_sent > OPA_NUM_PKEY_BLOCKS_PER_SMP) {
1421 pr_warn("OPA Set PKey AM Invalid : s 0x%x; req 0x%x; avail 0x%x; blk/smp 0x%lx\n",
1422 start_block, n_blocks_sent, n_blocks_avail,
1423 OPA_NUM_PKEY_BLOCKS_PER_SMP);
1424 smp->status |= IB_SMP_INVALID_FIELD;
1425 return reply((struct ib_mad_hdr *)smp);
1426 }
1427
1428 for (i = 0; i < n_blocks_sent * OPA_PARTITION_TABLE_BLK_SIZE; i++)
1429 p[i] = be16_to_cpu(q[i]);
1430
1431 if (start_block == 0 && set_pkeys(dd, port, p) != 0) {
1432 smp->status |= IB_SMP_INVALID_FIELD;
1433 return reply((struct ib_mad_hdr *)smp);
1434 }
1435
1436 return __subn_get_opa_pkeytable(smp, am, data, ibdev, port, resp_len);
1437 }
1438
get_sc2vlt_tables(struct hfi1_devdata * dd,void * data)1439 static int get_sc2vlt_tables(struct hfi1_devdata *dd, void *data)
1440 {
1441 u64 *val = data;
1442
1443 *val++ = read_csr(dd, SEND_SC2VLT0);
1444 *val++ = read_csr(dd, SEND_SC2VLT1);
1445 *val++ = read_csr(dd, SEND_SC2VLT2);
1446 *val++ = read_csr(dd, SEND_SC2VLT3);
1447 return 0;
1448 }
1449
1450 #define ILLEGAL_VL 12
1451 /*
1452 * filter_sc2vlt changes mappings to VL15 to ILLEGAL_VL (except
1453 * for SC15, which must map to VL15). If we don't remap things this
1454 * way it is possible for VL15 counters to increment when we try to
1455 * send on a SC which is mapped to an invalid VL.
1456 */
filter_sc2vlt(void * data)1457 static void filter_sc2vlt(void *data)
1458 {
1459 int i;
1460 u8 *pd = data;
1461
1462 for (i = 0; i < OPA_MAX_SCS; i++) {
1463 if (i == 15)
1464 continue;
1465 if ((pd[i] & 0x1f) == 0xf)
1466 pd[i] = ILLEGAL_VL;
1467 }
1468 }
1469
set_sc2vlt_tables(struct hfi1_devdata * dd,void * data)1470 static int set_sc2vlt_tables(struct hfi1_devdata *dd, void *data)
1471 {
1472 u64 *val = data;
1473
1474 filter_sc2vlt(data);
1475
1476 write_csr(dd, SEND_SC2VLT0, *val++);
1477 write_csr(dd, SEND_SC2VLT1, *val++);
1478 write_csr(dd, SEND_SC2VLT2, *val++);
1479 write_csr(dd, SEND_SC2VLT3, *val++);
1480 write_seqlock_irq(&dd->sc2vl_lock);
1481 memcpy(dd->sc2vl, data, sizeof(dd->sc2vl));
1482 write_sequnlock_irq(&dd->sc2vl_lock);
1483 return 0;
1484 }
1485
__subn_get_opa_sl_to_sc(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1486 static int __subn_get_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data,
1487 struct ib_device *ibdev, u8 port,
1488 u32 *resp_len)
1489 {
1490 struct hfi1_ibport *ibp = to_iport(ibdev, port);
1491 u8 *p = data;
1492 size_t size = ARRAY_SIZE(ibp->sl_to_sc); /* == 32 */
1493 unsigned i;
1494
1495 if (am) {
1496 smp->status |= IB_SMP_INVALID_FIELD;
1497 return reply((struct ib_mad_hdr *)smp);
1498 }
1499
1500 for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++)
1501 *p++ = ibp->sl_to_sc[i];
1502
1503 if (resp_len)
1504 *resp_len += size;
1505
1506 return reply((struct ib_mad_hdr *)smp);
1507 }
1508
__subn_set_opa_sl_to_sc(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1509 static int __subn_set_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data,
1510 struct ib_device *ibdev, u8 port,
1511 u32 *resp_len)
1512 {
1513 struct hfi1_ibport *ibp = to_iport(ibdev, port);
1514 u8 *p = data;
1515 int i;
1516
1517 if (am) {
1518 smp->status |= IB_SMP_INVALID_FIELD;
1519 return reply((struct ib_mad_hdr *)smp);
1520 }
1521
1522 for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++)
1523 ibp->sl_to_sc[i] = *p++;
1524
1525 return __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port, resp_len);
1526 }
1527
__subn_get_opa_sc_to_sl(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1528 static int __subn_get_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data,
1529 struct ib_device *ibdev, u8 port,
1530 u32 *resp_len)
1531 {
1532 struct hfi1_ibport *ibp = to_iport(ibdev, port);
1533 u8 *p = data;
1534 size_t size = ARRAY_SIZE(ibp->sc_to_sl); /* == 32 */
1535 unsigned i;
1536
1537 if (am) {
1538 smp->status |= IB_SMP_INVALID_FIELD;
1539 return reply((struct ib_mad_hdr *)smp);
1540 }
1541
1542 for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++)
1543 *p++ = ibp->sc_to_sl[i];
1544
1545 if (resp_len)
1546 *resp_len += size;
1547
1548 return reply((struct ib_mad_hdr *)smp);
1549 }
1550
__subn_set_opa_sc_to_sl(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1551 static int __subn_set_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data,
1552 struct ib_device *ibdev, u8 port,
1553 u32 *resp_len)
1554 {
1555 struct hfi1_ibport *ibp = to_iport(ibdev, port);
1556 u8 *p = data;
1557 int i;
1558
1559 if (am) {
1560 smp->status |= IB_SMP_INVALID_FIELD;
1561 return reply((struct ib_mad_hdr *)smp);
1562 }
1563
1564 for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++)
1565 ibp->sc_to_sl[i] = *p++;
1566
1567 return __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port, resp_len);
1568 }
1569
__subn_get_opa_sc_to_vlt(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1570 static int __subn_get_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data,
1571 struct ib_device *ibdev, u8 port,
1572 u32 *resp_len)
1573 {
1574 u32 n_blocks = OPA_AM_NBLK(am);
1575 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1576 void *vp = (void *) data;
1577 size_t size = 4 * sizeof(u64);
1578
1579 if (n_blocks != 1) {
1580 smp->status |= IB_SMP_INVALID_FIELD;
1581 return reply((struct ib_mad_hdr *)smp);
1582 }
1583
1584 get_sc2vlt_tables(dd, vp);
1585
1586 if (resp_len)
1587 *resp_len += size;
1588
1589 return reply((struct ib_mad_hdr *)smp);
1590 }
1591
__subn_set_opa_sc_to_vlt(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1592 static int __subn_set_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data,
1593 struct ib_device *ibdev, u8 port,
1594 u32 *resp_len)
1595 {
1596 u32 n_blocks = OPA_AM_NBLK(am);
1597 int async_update = OPA_AM_ASYNC(am);
1598 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1599 void *vp = (void *) data;
1600 struct hfi1_pportdata *ppd;
1601 int lstate;
1602
1603 if (n_blocks != 1 || async_update) {
1604 smp->status |= IB_SMP_INVALID_FIELD;
1605 return reply((struct ib_mad_hdr *)smp);
1606 }
1607
1608 /* IB numbers ports from 1, hw from 0 */
1609 ppd = dd->pport + (port - 1);
1610 lstate = driver_lstate(ppd);
1611 /* it's known that async_update is 0 by this point, but include
1612 * the explicit check for clarity */
1613 if (!async_update &&
1614 (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE)) {
1615 smp->status |= IB_SMP_INVALID_FIELD;
1616 return reply((struct ib_mad_hdr *)smp);
1617 }
1618
1619 set_sc2vlt_tables(dd, vp);
1620
1621 return __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port, resp_len);
1622 }
1623
__subn_get_opa_sc_to_vlnt(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1624 static int __subn_get_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data,
1625 struct ib_device *ibdev, u8 port,
1626 u32 *resp_len)
1627 {
1628 u32 n_blocks = OPA_AM_NPORT(am);
1629 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1630 struct hfi1_pportdata *ppd;
1631 void *vp = (void *) data;
1632 int size;
1633
1634 if (n_blocks != 1) {
1635 smp->status |= IB_SMP_INVALID_FIELD;
1636 return reply((struct ib_mad_hdr *)smp);
1637 }
1638
1639 ppd = dd->pport + (port - 1);
1640
1641 size = fm_get_table(ppd, FM_TBL_SC2VLNT, vp);
1642
1643 if (resp_len)
1644 *resp_len += size;
1645
1646 return reply((struct ib_mad_hdr *)smp);
1647 }
1648
__subn_set_opa_sc_to_vlnt(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1649 static int __subn_set_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data,
1650 struct ib_device *ibdev, u8 port,
1651 u32 *resp_len)
1652 {
1653 u32 n_blocks = OPA_AM_NPORT(am);
1654 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1655 struct hfi1_pportdata *ppd;
1656 void *vp = (void *) data;
1657 int lstate;
1658
1659 if (n_blocks != 1) {
1660 smp->status |= IB_SMP_INVALID_FIELD;
1661 return reply((struct ib_mad_hdr *)smp);
1662 }
1663
1664 /* IB numbers ports from 1, hw from 0 */
1665 ppd = dd->pport + (port - 1);
1666 lstate = driver_lstate(ppd);
1667 if (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE) {
1668 smp->status |= IB_SMP_INVALID_FIELD;
1669 return reply((struct ib_mad_hdr *)smp);
1670 }
1671
1672 ppd = dd->pport + (port - 1);
1673
1674 fm_set_table(ppd, FM_TBL_SC2VLNT, vp);
1675
1676 return __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port,
1677 resp_len);
1678 }
1679
__subn_get_opa_psi(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1680 static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
1681 struct ib_device *ibdev, u8 port,
1682 u32 *resp_len)
1683 {
1684 u32 nports = OPA_AM_NPORT(am);
1685 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
1686 u32 lstate;
1687 struct hfi1_ibport *ibp;
1688 struct hfi1_pportdata *ppd;
1689 struct opa_port_state_info *psi = (struct opa_port_state_info *) data;
1690
1691 if (nports != 1) {
1692 smp->status |= IB_SMP_INVALID_FIELD;
1693 return reply((struct ib_mad_hdr *)smp);
1694 }
1695
1696 ibp = to_iport(ibdev, port);
1697 ppd = ppd_from_ibp(ibp);
1698
1699 lstate = driver_lstate(ppd);
1700
1701 if (start_of_sm_config && (lstate == IB_PORT_INIT))
1702 ppd->is_sm_config_started = 1;
1703
1704 #if PI_LED_ENABLE_SUP
1705 psi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4;
1706 psi->port_states.ledenable_offlinereason |=
1707 ppd->is_sm_config_started << 5;
1708 psi->port_states.ledenable_offlinereason |=
1709 ppd->offline_disabled_reason & OPA_PI_MASK_OFFLINE_REASON;
1710 #else
1711 psi->port_states.offline_reason = ppd->neighbor_normal << 4;
1712 psi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
1713 psi->port_states.offline_reason |= ppd->offline_disabled_reason &
1714 OPA_PI_MASK_OFFLINE_REASON;
1715 #endif /* PI_LED_ENABLE_SUP */
1716
1717 psi->port_states.portphysstate_portstate =
1718 (hfi1_ibphys_portstate(ppd) << 4) | (lstate & 0xf);
1719 psi->link_width_downgrade_tx_active =
1720 cpu_to_be16(ppd->link_width_downgrade_tx_active);
1721 psi->link_width_downgrade_rx_active =
1722 cpu_to_be16(ppd->link_width_downgrade_rx_active);
1723 if (resp_len)
1724 *resp_len += sizeof(struct opa_port_state_info);
1725
1726 return reply((struct ib_mad_hdr *)smp);
1727 }
1728
__subn_set_opa_psi(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1729 static int __subn_set_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
1730 struct ib_device *ibdev, u8 port,
1731 u32 *resp_len)
1732 {
1733 u32 nports = OPA_AM_NPORT(am);
1734 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
1735 u32 ls_old;
1736 u8 ls_new, ps_new;
1737 struct hfi1_ibport *ibp;
1738 struct hfi1_pportdata *ppd;
1739 struct opa_port_state_info *psi = (struct opa_port_state_info *) data;
1740 int ret, invalid = 0;
1741
1742 if (nports != 1) {
1743 smp->status |= IB_SMP_INVALID_FIELD;
1744 return reply((struct ib_mad_hdr *)smp);
1745 }
1746
1747 ibp = to_iport(ibdev, port);
1748 ppd = ppd_from_ibp(ibp);
1749
1750 ls_old = driver_lstate(ppd);
1751
1752 ls_new = port_states_to_logical_state(&psi->port_states);
1753 ps_new = port_states_to_phys_state(&psi->port_states);
1754
1755 if (ls_old == IB_PORT_INIT) {
1756 if (start_of_sm_config) {
1757 if (ls_new == ls_old || (ls_new == IB_PORT_ARMED))
1758 ppd->is_sm_config_started = 1;
1759 } else if (ls_new == IB_PORT_ARMED) {
1760 if (ppd->is_sm_config_started == 0)
1761 invalid = 1;
1762 }
1763 }
1764
1765 ret = set_port_states(ppd, smp, ls_new, ps_new, invalid);
1766 if (ret)
1767 return ret;
1768
1769 if (invalid)
1770 smp->status |= IB_SMP_INVALID_FIELD;
1771
1772 return __subn_get_opa_psi(smp, am, data, ibdev, port, resp_len);
1773 }
1774
__subn_get_opa_cable_info(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1775 static int __subn_get_opa_cable_info(struct opa_smp *smp, u32 am, u8 *data,
1776 struct ib_device *ibdev, u8 port,
1777 u32 *resp_len)
1778 {
1779 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1780 u32 addr = OPA_AM_CI_ADDR(am);
1781 u32 len = OPA_AM_CI_LEN(am) + 1;
1782 int ret;
1783
1784 #define __CI_PAGE_SIZE (1 << 7) /* 128 bytes */
1785 #define __CI_PAGE_MASK ~(__CI_PAGE_SIZE - 1)
1786 #define __CI_PAGE_NUM(a) ((a) & __CI_PAGE_MASK)
1787
1788 /* check that addr is within spec, and
1789 * addr and (addr + len - 1) are on the same "page" */
1790 if (addr >= 4096 ||
1791 (__CI_PAGE_NUM(addr) != __CI_PAGE_NUM(addr + len - 1))) {
1792 smp->status |= IB_SMP_INVALID_FIELD;
1793 return reply((struct ib_mad_hdr *)smp);
1794 }
1795
1796 ret = get_cable_info(dd, port, addr, len, data);
1797
1798 if (ret == -ENODEV) {
1799 smp->status |= IB_SMP_UNSUP_METH_ATTR;
1800 return reply((struct ib_mad_hdr *)smp);
1801 }
1802
1803 /* The address range for the CableInfo SMA query is wider than the
1804 * memory available on the QSFP cable. We want to return a valid
1805 * response, albeit zeroed out, for address ranges beyond available
1806 * memory but that are within the CableInfo query spec
1807 */
1808 if (ret < 0 && ret != -ERANGE) {
1809 smp->status |= IB_SMP_INVALID_FIELD;
1810 return reply((struct ib_mad_hdr *)smp);
1811 }
1812
1813 if (resp_len)
1814 *resp_len += len;
1815
1816 return reply((struct ib_mad_hdr *)smp);
1817 }
1818
__subn_get_opa_bct(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1819 static int __subn_get_opa_bct(struct opa_smp *smp, u32 am, u8 *data,
1820 struct ib_device *ibdev, u8 port, u32 *resp_len)
1821 {
1822 u32 num_ports = OPA_AM_NPORT(am);
1823 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1824 struct hfi1_pportdata *ppd;
1825 struct buffer_control *p = (struct buffer_control *) data;
1826 int size;
1827
1828 if (num_ports != 1) {
1829 smp->status |= IB_SMP_INVALID_FIELD;
1830 return reply((struct ib_mad_hdr *)smp);
1831 }
1832
1833 ppd = dd->pport + (port - 1);
1834 size = fm_get_table(ppd, FM_TBL_BUFFER_CONTROL, p);
1835 trace_bct_get(dd, p);
1836 if (resp_len)
1837 *resp_len += size;
1838
1839 return reply((struct ib_mad_hdr *)smp);
1840 }
1841
__subn_set_opa_bct(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1842 static int __subn_set_opa_bct(struct opa_smp *smp, u32 am, u8 *data,
1843 struct ib_device *ibdev, u8 port, u32 *resp_len)
1844 {
1845 u32 num_ports = OPA_AM_NPORT(am);
1846 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1847 struct hfi1_pportdata *ppd;
1848 struct buffer_control *p = (struct buffer_control *) data;
1849
1850 if (num_ports != 1) {
1851 smp->status |= IB_SMP_INVALID_FIELD;
1852 return reply((struct ib_mad_hdr *)smp);
1853 }
1854 ppd = dd->pport + (port - 1);
1855 trace_bct_set(dd, p);
1856 if (fm_set_table(ppd, FM_TBL_BUFFER_CONTROL, p) < 0) {
1857 smp->status |= IB_SMP_INVALID_FIELD;
1858 return reply((struct ib_mad_hdr *)smp);
1859 }
1860
1861 return __subn_get_opa_bct(smp, am, data, ibdev, port, resp_len);
1862 }
1863
__subn_get_opa_vl_arb(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1864 static int __subn_get_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data,
1865 struct ib_device *ibdev, u8 port,
1866 u32 *resp_len)
1867 {
1868 struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port));
1869 u32 num_ports = OPA_AM_NPORT(am);
1870 u8 section = (am & 0x00ff0000) >> 16;
1871 u8 *p = data;
1872 int size = 0;
1873
1874 if (num_ports != 1) {
1875 smp->status |= IB_SMP_INVALID_FIELD;
1876 return reply((struct ib_mad_hdr *)smp);
1877 }
1878
1879 switch (section) {
1880 case OPA_VLARB_LOW_ELEMENTS:
1881 size = fm_get_table(ppd, FM_TBL_VL_LOW_ARB, p);
1882 break;
1883 case OPA_VLARB_HIGH_ELEMENTS:
1884 size = fm_get_table(ppd, FM_TBL_VL_HIGH_ARB, p);
1885 break;
1886 case OPA_VLARB_PREEMPT_ELEMENTS:
1887 size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_ELEMS, p);
1888 break;
1889 case OPA_VLARB_PREEMPT_MATRIX:
1890 size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_MATRIX, p);
1891 break;
1892 default:
1893 pr_warn("OPA SubnGet(VL Arb) AM Invalid : 0x%x\n",
1894 be32_to_cpu(smp->attr_mod));
1895 smp->status |= IB_SMP_INVALID_FIELD;
1896 break;
1897 }
1898
1899 if (size > 0 && resp_len)
1900 *resp_len += size;
1901
1902 return reply((struct ib_mad_hdr *)smp);
1903 }
1904
__subn_set_opa_vl_arb(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)1905 static int __subn_set_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data,
1906 struct ib_device *ibdev, u8 port,
1907 u32 *resp_len)
1908 {
1909 struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port));
1910 u32 num_ports = OPA_AM_NPORT(am);
1911 u8 section = (am & 0x00ff0000) >> 16;
1912 u8 *p = data;
1913
1914 if (num_ports != 1) {
1915 smp->status |= IB_SMP_INVALID_FIELD;
1916 return reply((struct ib_mad_hdr *)smp);
1917 }
1918
1919 switch (section) {
1920 case OPA_VLARB_LOW_ELEMENTS:
1921 (void) fm_set_table(ppd, FM_TBL_VL_LOW_ARB, p);
1922 break;
1923 case OPA_VLARB_HIGH_ELEMENTS:
1924 (void) fm_set_table(ppd, FM_TBL_VL_HIGH_ARB, p);
1925 break;
1926 /* neither OPA_VLARB_PREEMPT_ELEMENTS, or OPA_VLARB_PREEMPT_MATRIX
1927 * can be changed from the default values */
1928 case OPA_VLARB_PREEMPT_ELEMENTS:
1929 /* FALLTHROUGH */
1930 case OPA_VLARB_PREEMPT_MATRIX:
1931 smp->status |= IB_SMP_UNSUP_METH_ATTR;
1932 break;
1933 default:
1934 pr_warn("OPA SubnSet(VL Arb) AM Invalid : 0x%x\n",
1935 be32_to_cpu(smp->attr_mod));
1936 smp->status |= IB_SMP_INVALID_FIELD;
1937 break;
1938 }
1939
1940 return __subn_get_opa_vl_arb(smp, am, data, ibdev, port, resp_len);
1941 }
1942
1943 struct opa_pma_mad {
1944 struct ib_mad_hdr mad_hdr;
1945 u8 data[2024];
1946 } __packed;
1947
1948 struct opa_class_port_info {
1949 u8 base_version;
1950 u8 class_version;
1951 __be16 cap_mask;
1952 __be32 cap_mask2_resp_time;
1953
1954 u8 redirect_gid[16];
1955 __be32 redirect_tc_fl;
1956 __be32 redirect_lid;
1957 __be32 redirect_sl_qp;
1958 __be32 redirect_qkey;
1959
1960 u8 trap_gid[16];
1961 __be32 trap_tc_fl;
1962 __be32 trap_lid;
1963 __be32 trap_hl_qp;
1964 __be32 trap_qkey;
1965
1966 __be16 trap_pkey;
1967 __be16 redirect_pkey;
1968
1969 u8 trap_sl_rsvd;
1970 u8 reserved[3];
1971 } __packed;
1972
1973 struct opa_port_status_req {
1974 __u8 port_num;
1975 __u8 reserved[3];
1976 __be32 vl_select_mask;
1977 };
1978
1979 #define VL_MASK_ALL 0x000080ff
1980
1981 struct opa_port_status_rsp {
1982 __u8 port_num;
1983 __u8 reserved[3];
1984 __be32 vl_select_mask;
1985
1986 /* Data counters */
1987 __be64 port_xmit_data;
1988 __be64 port_rcv_data;
1989 __be64 port_xmit_pkts;
1990 __be64 port_rcv_pkts;
1991 __be64 port_multicast_xmit_pkts;
1992 __be64 port_multicast_rcv_pkts;
1993 __be64 port_xmit_wait;
1994 __be64 sw_port_congestion;
1995 __be64 port_rcv_fecn;
1996 __be64 port_rcv_becn;
1997 __be64 port_xmit_time_cong;
1998 __be64 port_xmit_wasted_bw;
1999 __be64 port_xmit_wait_data;
2000 __be64 port_rcv_bubble;
2001 __be64 port_mark_fecn;
2002 /* Error counters */
2003 __be64 port_rcv_constraint_errors;
2004 __be64 port_rcv_switch_relay_errors;
2005 __be64 port_xmit_discards;
2006 __be64 port_xmit_constraint_errors;
2007 __be64 port_rcv_remote_physical_errors;
2008 __be64 local_link_integrity_errors;
2009 __be64 port_rcv_errors;
2010 __be64 excessive_buffer_overruns;
2011 __be64 fm_config_errors;
2012 __be32 link_error_recovery;
2013 __be32 link_downed;
2014 u8 uncorrectable_errors;
2015
2016 u8 link_quality_indicator; /* 5res, 3bit */
2017 u8 res2[6];
2018 struct _vls_pctrs {
2019 /* per-VL Data counters */
2020 __be64 port_vl_xmit_data;
2021 __be64 port_vl_rcv_data;
2022 __be64 port_vl_xmit_pkts;
2023 __be64 port_vl_rcv_pkts;
2024 __be64 port_vl_xmit_wait;
2025 __be64 sw_port_vl_congestion;
2026 __be64 port_vl_rcv_fecn;
2027 __be64 port_vl_rcv_becn;
2028 __be64 port_xmit_time_cong;
2029 __be64 port_vl_xmit_wasted_bw;
2030 __be64 port_vl_xmit_wait_data;
2031 __be64 port_vl_rcv_bubble;
2032 __be64 port_vl_mark_fecn;
2033 __be64 port_vl_xmit_discards;
2034 } vls[0]; /* real array size defined by # bits set in vl_select_mask */
2035 };
2036
2037 enum counter_selects {
2038 CS_PORT_XMIT_DATA = (1 << 31),
2039 CS_PORT_RCV_DATA = (1 << 30),
2040 CS_PORT_XMIT_PKTS = (1 << 29),
2041 CS_PORT_RCV_PKTS = (1 << 28),
2042 CS_PORT_MCAST_XMIT_PKTS = (1 << 27),
2043 CS_PORT_MCAST_RCV_PKTS = (1 << 26),
2044 CS_PORT_XMIT_WAIT = (1 << 25),
2045 CS_SW_PORT_CONGESTION = (1 << 24),
2046 CS_PORT_RCV_FECN = (1 << 23),
2047 CS_PORT_RCV_BECN = (1 << 22),
2048 CS_PORT_XMIT_TIME_CONG = (1 << 21),
2049 CS_PORT_XMIT_WASTED_BW = (1 << 20),
2050 CS_PORT_XMIT_WAIT_DATA = (1 << 19),
2051 CS_PORT_RCV_BUBBLE = (1 << 18),
2052 CS_PORT_MARK_FECN = (1 << 17),
2053 CS_PORT_RCV_CONSTRAINT_ERRORS = (1 << 16),
2054 CS_PORT_RCV_SWITCH_RELAY_ERRORS = (1 << 15),
2055 CS_PORT_XMIT_DISCARDS = (1 << 14),
2056 CS_PORT_XMIT_CONSTRAINT_ERRORS = (1 << 13),
2057 CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS = (1 << 12),
2058 CS_LOCAL_LINK_INTEGRITY_ERRORS = (1 << 11),
2059 CS_PORT_RCV_ERRORS = (1 << 10),
2060 CS_EXCESSIVE_BUFFER_OVERRUNS = (1 << 9),
2061 CS_FM_CONFIG_ERRORS = (1 << 8),
2062 CS_LINK_ERROR_RECOVERY = (1 << 7),
2063 CS_LINK_DOWNED = (1 << 6),
2064 CS_UNCORRECTABLE_ERRORS = (1 << 5),
2065 };
2066
2067 struct opa_clear_port_status {
2068 __be64 port_select_mask[4];
2069 __be32 counter_select_mask;
2070 };
2071
2072 struct opa_aggregate {
2073 __be16 attr_id;
2074 __be16 err_reqlength; /* 1 bit, 8 res, 7 bit */
2075 __be32 attr_mod;
2076 u8 data[0];
2077 };
2078
2079 /* Request contains first two fields, response contains those plus the rest */
2080 struct opa_port_data_counters_msg {
2081 __be64 port_select_mask[4];
2082 __be32 vl_select_mask;
2083
2084 /* Response fields follow */
2085 __be32 reserved1;
2086 struct _port_dctrs {
2087 u8 port_number;
2088 u8 reserved2[3];
2089 __be32 link_quality_indicator; /* 29res, 3bit */
2090
2091 /* Data counters */
2092 __be64 port_xmit_data;
2093 __be64 port_rcv_data;
2094 __be64 port_xmit_pkts;
2095 __be64 port_rcv_pkts;
2096 __be64 port_multicast_xmit_pkts;
2097 __be64 port_multicast_rcv_pkts;
2098 __be64 port_xmit_wait;
2099 __be64 sw_port_congestion;
2100 __be64 port_rcv_fecn;
2101 __be64 port_rcv_becn;
2102 __be64 port_xmit_time_cong;
2103 __be64 port_xmit_wasted_bw;
2104 __be64 port_xmit_wait_data;
2105 __be64 port_rcv_bubble;
2106 __be64 port_mark_fecn;
2107
2108 __be64 port_error_counter_summary;
2109 /* Sum of error counts/port */
2110
2111 struct _vls_dctrs {
2112 /* per-VL Data counters */
2113 __be64 port_vl_xmit_data;
2114 __be64 port_vl_rcv_data;
2115 __be64 port_vl_xmit_pkts;
2116 __be64 port_vl_rcv_pkts;
2117 __be64 port_vl_xmit_wait;
2118 __be64 sw_port_vl_congestion;
2119 __be64 port_vl_rcv_fecn;
2120 __be64 port_vl_rcv_becn;
2121 __be64 port_xmit_time_cong;
2122 __be64 port_vl_xmit_wasted_bw;
2123 __be64 port_vl_xmit_wait_data;
2124 __be64 port_vl_rcv_bubble;
2125 __be64 port_vl_mark_fecn;
2126 } vls[0];
2127 /* array size defined by #bits set in vl_select_mask*/
2128 } port[1]; /* array size defined by #ports in attribute modifier */
2129 };
2130
2131 struct opa_port_error_counters64_msg {
2132 /* Request contains first two fields, response contains the
2133 * whole magilla */
2134 __be64 port_select_mask[4];
2135 __be32 vl_select_mask;
2136
2137 /* Response-only fields follow */
2138 __be32 reserved1;
2139 struct _port_ectrs {
2140 u8 port_number;
2141 u8 reserved2[7];
2142 __be64 port_rcv_constraint_errors;
2143 __be64 port_rcv_switch_relay_errors;
2144 __be64 port_xmit_discards;
2145 __be64 port_xmit_constraint_errors;
2146 __be64 port_rcv_remote_physical_errors;
2147 __be64 local_link_integrity_errors;
2148 __be64 port_rcv_errors;
2149 __be64 excessive_buffer_overruns;
2150 __be64 fm_config_errors;
2151 __be32 link_error_recovery;
2152 __be32 link_downed;
2153 u8 uncorrectable_errors;
2154 u8 reserved3[7];
2155 struct _vls_ectrs {
2156 __be64 port_vl_xmit_discards;
2157 } vls[0];
2158 /* array size defined by #bits set in vl_select_mask */
2159 } port[1]; /* array size defined by #ports in attribute modifier */
2160 };
2161
2162 struct opa_port_error_info_msg {
2163 __be64 port_select_mask[4];
2164 __be32 error_info_select_mask;
2165 __be32 reserved1;
2166 struct _port_ei {
2167
2168 u8 port_number;
2169 u8 reserved2[7];
2170
2171 /* PortRcvErrorInfo */
2172 struct {
2173 u8 status_and_code;
2174 union {
2175 u8 raw[17];
2176 struct {
2177 /* EI1to12 format */
2178 u8 packet_flit1[8];
2179 u8 packet_flit2[8];
2180 u8 remaining_flit_bits12;
2181 } ei1to12;
2182 struct {
2183 u8 packet_bytes[8];
2184 u8 remaining_flit_bits;
2185 } ei13;
2186 } ei;
2187 u8 reserved3[6];
2188 } __packed port_rcv_ei;
2189
2190 /* ExcessiveBufferOverrunInfo */
2191 struct {
2192 u8 status_and_sc;
2193 u8 reserved4[7];
2194 } __packed excessive_buffer_overrun_ei;
2195
2196 /* PortXmitConstraintErrorInfo */
2197 struct {
2198 u8 status;
2199 u8 reserved5;
2200 __be16 pkey;
2201 __be32 slid;
2202 } __packed port_xmit_constraint_ei;
2203
2204 /* PortRcvConstraintErrorInfo */
2205 struct {
2206 u8 status;
2207 u8 reserved6;
2208 __be16 pkey;
2209 __be32 slid;
2210 } __packed port_rcv_constraint_ei;
2211
2212 /* PortRcvSwitchRelayErrorInfo */
2213 struct {
2214 u8 status_and_code;
2215 u8 reserved7[3];
2216 __u32 error_info;
2217 } __packed port_rcv_switch_relay_ei;
2218
2219 /* UncorrectableErrorInfo */
2220 struct {
2221 u8 status_and_code;
2222 u8 reserved8;
2223 } __packed uncorrectable_ei;
2224
2225 /* FMConfigErrorInfo */
2226 struct {
2227 u8 status_and_code;
2228 u8 error_info;
2229 } __packed fm_config_ei;
2230 __u32 reserved9;
2231 } port[1]; /* actual array size defined by #ports in attr modifier */
2232 };
2233
2234 /* opa_port_error_info_msg error_info_select_mask bit definitions */
2235 enum error_info_selects {
2236 ES_PORT_RCV_ERROR_INFO = (1 << 31),
2237 ES_EXCESSIVE_BUFFER_OVERRUN_INFO = (1 << 30),
2238 ES_PORT_XMIT_CONSTRAINT_ERROR_INFO = (1 << 29),
2239 ES_PORT_RCV_CONSTRAINT_ERROR_INFO = (1 << 28),
2240 ES_PORT_RCV_SWITCH_RELAY_ERROR_INFO = (1 << 27),
2241 ES_UNCORRECTABLE_ERROR_INFO = (1 << 26),
2242 ES_FM_CONFIG_ERROR_INFO = (1 << 25)
2243 };
2244
pma_get_opa_classportinfo(struct opa_pma_mad * pmp,struct ib_device * ibdev,u32 * resp_len)2245 static int pma_get_opa_classportinfo(struct opa_pma_mad *pmp,
2246 struct ib_device *ibdev, u32 *resp_len)
2247 {
2248 struct opa_class_port_info *p =
2249 (struct opa_class_port_info *)pmp->data;
2250
2251 memset(pmp->data, 0, sizeof(pmp->data));
2252
2253 if (pmp->mad_hdr.attr_mod != 0)
2254 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2255
2256 p->base_version = OPA_MGMT_BASE_VERSION;
2257 p->class_version = OPA_SMI_CLASS_VERSION;
2258 /*
2259 * Expected response time is 4.096 usec. * 2^18 == 1.073741824 sec.
2260 */
2261 p->cap_mask2_resp_time = cpu_to_be32(18);
2262
2263 if (resp_len)
2264 *resp_len += sizeof(*p);
2265
2266 return reply((struct ib_mad_hdr *)pmp);
2267 }
2268
a0_portstatus(struct hfi1_pportdata * ppd,struct opa_port_status_rsp * rsp,u32 vl_select_mask)2269 static void a0_portstatus(struct hfi1_pportdata *ppd,
2270 struct opa_port_status_rsp *rsp, u32 vl_select_mask)
2271 {
2272 if (!is_bx(ppd->dd)) {
2273 unsigned long vl;
2274 int vfi = 0;
2275 u64 max_vl_xmit_wait = 0, tmp;
2276 u32 vl_all_mask = VL_MASK_ALL;
2277 u64 rcv_data, rcv_bubble;
2278
2279 rcv_data = be64_to_cpu(rsp->port_rcv_data);
2280 rcv_bubble = be64_to_cpu(rsp->port_rcv_bubble);
2281 /* In the measured time period, calculate the total number
2282 * of flits that were received. Subtract out one false
2283 * rcv_bubble increment for every 32 received flits but
2284 * don't let the number go negative.
2285 */
2286 if (rcv_bubble >= (rcv_data>>5)) {
2287 rcv_bubble -= (rcv_data>>5);
2288 rsp->port_rcv_bubble = cpu_to_be64(rcv_bubble);
2289 }
2290 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2291 8 * sizeof(vl_select_mask)) {
2292 rcv_data = be64_to_cpu(rsp->vls[vfi].port_vl_rcv_data);
2293 rcv_bubble =
2294 be64_to_cpu(rsp->vls[vfi].port_vl_rcv_bubble);
2295 if (rcv_bubble >= (rcv_data>>5)) {
2296 rcv_bubble -= (rcv_data>>5);
2297 rsp->vls[vfi].port_vl_rcv_bubble =
2298 cpu_to_be64(rcv_bubble);
2299 }
2300 vfi++;
2301 }
2302
2303 for_each_set_bit(vl, (unsigned long *)&(vl_all_mask),
2304 8 * sizeof(vl_all_mask)) {
2305 tmp = read_port_cntr(ppd, C_TX_WAIT_VL,
2306 idx_from_vl(vl));
2307 if (tmp > max_vl_xmit_wait)
2308 max_vl_xmit_wait = tmp;
2309 }
2310 rsp->port_xmit_wait = cpu_to_be64(max_vl_xmit_wait);
2311 }
2312 }
2313
2314
pma_get_opa_portstatus(struct opa_pma_mad * pmp,struct ib_device * ibdev,u8 port,u32 * resp_len)2315 static int pma_get_opa_portstatus(struct opa_pma_mad *pmp,
2316 struct ib_device *ibdev, u8 port, u32 *resp_len)
2317 {
2318 struct opa_port_status_req *req =
2319 (struct opa_port_status_req *)pmp->data;
2320 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2321 struct opa_port_status_rsp *rsp;
2322 u32 vl_select_mask = be32_to_cpu(req->vl_select_mask);
2323 unsigned long vl;
2324 size_t response_data_size;
2325 u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2326 u8 port_num = req->port_num;
2327 u8 num_vls = hweight32(vl_select_mask);
2328 struct _vls_pctrs *vlinfo;
2329 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2330 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2331 int vfi;
2332 u64 tmp, tmp2;
2333
2334 response_data_size = sizeof(struct opa_port_status_rsp) +
2335 num_vls * sizeof(struct _vls_pctrs);
2336 if (response_data_size > sizeof(pmp->data)) {
2337 pmp->mad_hdr.status |= OPA_PM_STATUS_REQUEST_TOO_LARGE;
2338 return reply((struct ib_mad_hdr *)pmp);
2339 }
2340
2341 if (nports != 1 || (port_num && port_num != port)
2342 || num_vls > OPA_MAX_VLS || (vl_select_mask & ~VL_MASK_ALL)) {
2343 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2344 return reply((struct ib_mad_hdr *)pmp);
2345 }
2346
2347 memset(pmp->data, 0, sizeof(pmp->data));
2348
2349 rsp = (struct opa_port_status_rsp *)pmp->data;
2350 if (port_num)
2351 rsp->port_num = port_num;
2352 else
2353 rsp->port_num = port;
2354
2355 rsp->port_rcv_constraint_errors =
2356 cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
2357 CNTR_INVALID_VL));
2358
2359 hfi1_read_link_quality(dd, &rsp->link_quality_indicator);
2360
2361 rsp->vl_select_mask = cpu_to_be32(vl_select_mask);
2362 rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS,
2363 CNTR_INVALID_VL));
2364 rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
2365 CNTR_INVALID_VL));
2366 rsp->port_rcv_bubble =
2367 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL));
2368 rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
2369 CNTR_INVALID_VL));
2370 rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
2371 CNTR_INVALID_VL));
2372 rsp->port_multicast_xmit_pkts =
2373 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS,
2374 CNTR_INVALID_VL));
2375 rsp->port_multicast_rcv_pkts =
2376 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS,
2377 CNTR_INVALID_VL));
2378 rsp->port_xmit_wait =
2379 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL));
2380 rsp->port_rcv_fecn =
2381 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL));
2382 rsp->port_rcv_becn =
2383 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
2384 rsp->port_xmit_discards =
2385 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD,
2386 CNTR_INVALID_VL));
2387 rsp->port_xmit_constraint_errors =
2388 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
2389 CNTR_INVALID_VL));
2390 rsp->port_rcv_remote_physical_errors =
2391 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
2392 CNTR_INVALID_VL));
2393 tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
2394 tmp2 = tmp + read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
2395 if (tmp2 < tmp) {
2396 /* overflow/wrapped */
2397 rsp->local_link_integrity_errors = cpu_to_be64(~0);
2398 } else {
2399 rsp->local_link_integrity_errors = cpu_to_be64(tmp2);
2400 }
2401 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
2402 tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
2403 CNTR_INVALID_VL);
2404 if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) {
2405 /* overflow/wrapped */
2406 rsp->link_error_recovery = cpu_to_be32(~0);
2407 } else {
2408 rsp->link_error_recovery = cpu_to_be32(tmp2);
2409 }
2410 rsp->port_rcv_errors =
2411 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL));
2412 rsp->excessive_buffer_overruns =
2413 cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL));
2414 rsp->fm_config_errors =
2415 cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR,
2416 CNTR_INVALID_VL));
2417 rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN,
2418 CNTR_INVALID_VL));
2419
2420 /* rsp->uncorrectable_errors is 8 bits wide, and it pegs at 0xff */
2421 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
2422 rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff;
2423
2424 vlinfo = &(rsp->vls[0]);
2425 vfi = 0;
2426 /* The vl_select_mask has been checked above, and we know
2427 * that it contains only entries which represent valid VLs.
2428 * So in the for_each_set_bit() loop below, we don't need
2429 * any additional checks for vl.
2430 */
2431 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2432 8 * sizeof(vl_select_mask)) {
2433 memset(vlinfo, 0, sizeof(*vlinfo));
2434
2435 tmp = read_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl));
2436 rsp->vls[vfi].port_vl_rcv_data = cpu_to_be64(tmp);
2437 rsp->vls[vfi].port_vl_rcv_bubble =
2438 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL_VL,
2439 idx_from_vl(vl)));
2440
2441 rsp->vls[vfi].port_vl_rcv_pkts =
2442 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
2443 idx_from_vl(vl)));
2444
2445 rsp->vls[vfi].port_vl_xmit_data =
2446 cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL,
2447 idx_from_vl(vl)));
2448
2449 rsp->vls[vfi].port_vl_xmit_pkts =
2450 cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
2451 idx_from_vl(vl)));
2452
2453 rsp->vls[vfi].port_vl_xmit_wait =
2454 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL,
2455 idx_from_vl(vl)));
2456
2457 rsp->vls[vfi].port_vl_rcv_fecn =
2458 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL,
2459 idx_from_vl(vl)));
2460
2461 rsp->vls[vfi].port_vl_rcv_becn =
2462 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL,
2463 idx_from_vl(vl)));
2464
2465 vlinfo++;
2466 vfi++;
2467 }
2468
2469 a0_portstatus(ppd, rsp, vl_select_mask);
2470
2471 if (resp_len)
2472 *resp_len += response_data_size;
2473
2474 return reply((struct ib_mad_hdr *)pmp);
2475 }
2476
get_error_counter_summary(struct ib_device * ibdev,u8 port)2477 static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port)
2478 {
2479 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2480 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2481 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2482 u64 error_counter_summary = 0, tmp;
2483
2484 error_counter_summary += read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
2485 CNTR_INVALID_VL);
2486 /* port_rcv_switch_relay_errors is 0 for HFIs */
2487 error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_DSCD,
2488 CNTR_INVALID_VL);
2489 error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
2490 CNTR_INVALID_VL);
2491 error_counter_summary += read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
2492 CNTR_INVALID_VL);
2493 error_counter_summary += read_dev_cntr(dd, C_DC_TX_REPLAY,
2494 CNTR_INVALID_VL);
2495 error_counter_summary += read_dev_cntr(dd, C_DC_RX_REPLAY,
2496 CNTR_INVALID_VL);
2497 error_counter_summary += read_dev_cntr(dd, C_DC_SEQ_CRC_CNT,
2498 CNTR_INVALID_VL);
2499 error_counter_summary += read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
2500 CNTR_INVALID_VL);
2501 error_counter_summary += read_dev_cntr(dd, C_DC_RCV_ERR,
2502 CNTR_INVALID_VL);
2503 error_counter_summary += read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL);
2504 error_counter_summary += read_dev_cntr(dd, C_DC_FM_CFG_ERR,
2505 CNTR_INVALID_VL);
2506 /* ppd->link_downed is a 32-bit value */
2507 error_counter_summary += read_port_cntr(ppd, C_SW_LINK_DOWN,
2508 CNTR_INVALID_VL);
2509 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
2510 /* this is an 8-bit quantity */
2511 error_counter_summary += tmp < 0x100 ? (tmp & 0xff) : 0xff;
2512
2513 return error_counter_summary;
2514 }
2515
a0_datacounters(struct hfi1_devdata * dd,struct _port_dctrs * rsp,u32 vl_select_mask)2516 static void a0_datacounters(struct hfi1_devdata *dd, struct _port_dctrs *rsp,
2517 u32 vl_select_mask)
2518 {
2519 if (!is_bx(dd)) {
2520 unsigned long vl;
2521 int vfi = 0;
2522 u64 rcv_data, rcv_bubble, sum_vl_xmit_wait = 0;
2523
2524 rcv_data = be64_to_cpu(rsp->port_rcv_data);
2525 rcv_bubble = be64_to_cpu(rsp->port_rcv_bubble);
2526 /* In the measured time period, calculate the total number
2527 * of flits that were received. Subtract out one false
2528 * rcv_bubble increment for every 32 received flits but
2529 * don't let the number go negative.
2530 */
2531 if (rcv_bubble >= (rcv_data>>5)) {
2532 rcv_bubble -= (rcv_data>>5);
2533 rsp->port_rcv_bubble = cpu_to_be64(rcv_bubble);
2534 }
2535 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2536 8 * sizeof(vl_select_mask)) {
2537 rcv_data = be64_to_cpu(rsp->vls[vfi].port_vl_rcv_data);
2538 rcv_bubble =
2539 be64_to_cpu(rsp->vls[vfi].port_vl_rcv_bubble);
2540 if (rcv_bubble >= (rcv_data>>5)) {
2541 rcv_bubble -= (rcv_data>>5);
2542 rsp->vls[vfi].port_vl_rcv_bubble =
2543 cpu_to_be64(rcv_bubble);
2544 }
2545 vfi++;
2546 }
2547 vfi = 0;
2548 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2549 8 * sizeof(vl_select_mask)) {
2550 u64 tmp = sum_vl_xmit_wait +
2551 be64_to_cpu(rsp->vls[vfi++].port_vl_xmit_wait);
2552 if (tmp < sum_vl_xmit_wait) {
2553 /* we wrapped */
2554 sum_vl_xmit_wait = (u64) ~0;
2555 break;
2556 }
2557 sum_vl_xmit_wait = tmp;
2558 }
2559 if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait)
2560 rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait);
2561 }
2562 }
2563
pma_get_opa_datacounters(struct opa_pma_mad * pmp,struct ib_device * ibdev,u8 port,u32 * resp_len)2564 static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
2565 struct ib_device *ibdev, u8 port, u32 *resp_len)
2566 {
2567 struct opa_port_data_counters_msg *req =
2568 (struct opa_port_data_counters_msg *)pmp->data;
2569 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2570 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2571 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2572 struct _port_dctrs *rsp;
2573 struct _vls_dctrs *vlinfo;
2574 size_t response_data_size;
2575 u32 num_ports;
2576 u8 num_pslm;
2577 u8 lq, num_vls;
2578 u64 port_mask;
2579 unsigned long port_num;
2580 unsigned long vl;
2581 u32 vl_select_mask;
2582 int vfi;
2583
2584 num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2585 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
2586 num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
2587 vl_select_mask = be32_to_cpu(req->vl_select_mask);
2588
2589 if (num_ports != 1 || (vl_select_mask & ~VL_MASK_ALL)) {
2590 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2591 return reply((struct ib_mad_hdr *)pmp);
2592 }
2593
2594 /* Sanity check */
2595 response_data_size = sizeof(struct opa_port_data_counters_msg) +
2596 num_vls * sizeof(struct _vls_dctrs);
2597
2598 if (response_data_size > sizeof(pmp->data)) {
2599 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2600 return reply((struct ib_mad_hdr *)pmp);
2601 }
2602
2603 /*
2604 * The bit set in the mask needs to be consistent with the
2605 * port the request came in on.
2606 */
2607 port_mask = be64_to_cpu(req->port_select_mask[3]);
2608 port_num = find_first_bit((unsigned long *)&port_mask,
2609 sizeof(port_mask));
2610
2611 if ((u8)port_num != port) {
2612 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2613 return reply((struct ib_mad_hdr *)pmp);
2614 }
2615
2616 rsp = (struct _port_dctrs *)&(req->port[0]);
2617 memset(rsp, 0, sizeof(*rsp));
2618
2619 rsp->port_number = port;
2620 /*
2621 * Note that link_quality_indicator is a 32 bit quantity in
2622 * 'datacounters' queries (as opposed to 'portinfo' queries,
2623 * where it's a byte).
2624 */
2625 hfi1_read_link_quality(dd, &lq);
2626 rsp->link_quality_indicator = cpu_to_be32((u32)lq);
2627
2628 /* rsp->sw_port_congestion is 0 for HFIs */
2629 /* rsp->port_xmit_time_cong is 0 for HFIs */
2630 /* rsp->port_xmit_wasted_bw ??? */
2631 /* rsp->port_xmit_wait_data ??? */
2632 /* rsp->port_mark_fecn is 0 for HFIs */
2633
2634 rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS,
2635 CNTR_INVALID_VL));
2636 rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
2637 CNTR_INVALID_VL));
2638 rsp->port_rcv_bubble =
2639 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL));
2640 rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
2641 CNTR_INVALID_VL));
2642 rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
2643 CNTR_INVALID_VL));
2644 rsp->port_multicast_xmit_pkts =
2645 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS,
2646 CNTR_INVALID_VL));
2647 rsp->port_multicast_rcv_pkts =
2648 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS,
2649 CNTR_INVALID_VL));
2650 rsp->port_xmit_wait =
2651 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL));
2652 rsp->port_rcv_fecn =
2653 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL));
2654 rsp->port_rcv_becn =
2655 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
2656
2657 rsp->port_error_counter_summary =
2658 cpu_to_be64(get_error_counter_summary(ibdev, port));
2659
2660 vlinfo = &(rsp->vls[0]);
2661 vfi = 0;
2662 /* The vl_select_mask has been checked above, and we know
2663 * that it contains only entries which represent valid VLs.
2664 * So in the for_each_set_bit() loop below, we don't need
2665 * any additional checks for vl.
2666 */
2667 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2668 8 * sizeof(req->vl_select_mask)) {
2669 memset(vlinfo, 0, sizeof(*vlinfo));
2670
2671 rsp->vls[vfi].port_vl_xmit_data =
2672 cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL,
2673 idx_from_vl(vl)));
2674
2675 rsp->vls[vfi].port_vl_rcv_data =
2676 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_FLIT_VL,
2677 idx_from_vl(vl)));
2678 rsp->vls[vfi].port_vl_rcv_bubble =
2679 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL_VL,
2680 idx_from_vl(vl)));
2681
2682 rsp->vls[vfi].port_vl_xmit_pkts =
2683 cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
2684 idx_from_vl(vl)));
2685
2686 rsp->vls[vfi].port_vl_rcv_pkts =
2687 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
2688 idx_from_vl(vl)));
2689
2690 rsp->vls[vfi].port_vl_xmit_wait =
2691 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL,
2692 idx_from_vl(vl)));
2693
2694 rsp->vls[vfi].port_vl_rcv_fecn =
2695 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL,
2696 idx_from_vl(vl)));
2697 rsp->vls[vfi].port_vl_rcv_becn =
2698 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL,
2699 idx_from_vl(vl)));
2700
2701 /* rsp->port_vl_xmit_time_cong is 0 for HFIs */
2702 /* rsp->port_vl_xmit_wasted_bw ??? */
2703 /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ???
2704 * does this differ from rsp->vls[vfi].port_vl_xmit_wait */
2705 /*rsp->vls[vfi].port_vl_mark_fecn =
2706 cpu_to_be64(read_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT
2707 + offset));
2708 */
2709 vlinfo++;
2710 vfi++;
2711 }
2712
2713 a0_datacounters(dd, rsp, vl_select_mask);
2714
2715 if (resp_len)
2716 *resp_len += response_data_size;
2717
2718 return reply((struct ib_mad_hdr *)pmp);
2719 }
2720
pma_get_opa_porterrors(struct opa_pma_mad * pmp,struct ib_device * ibdev,u8 port,u32 * resp_len)2721 static int pma_get_opa_porterrors(struct opa_pma_mad *pmp,
2722 struct ib_device *ibdev, u8 port, u32 *resp_len)
2723 {
2724 size_t response_data_size;
2725 struct _port_ectrs *rsp;
2726 unsigned long port_num;
2727 struct opa_port_error_counters64_msg *req;
2728 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2729 u32 num_ports;
2730 u8 num_pslm;
2731 u8 num_vls;
2732 struct hfi1_ibport *ibp;
2733 struct hfi1_pportdata *ppd;
2734 struct _vls_ectrs *vlinfo;
2735 unsigned long vl;
2736 u64 port_mask, tmp, tmp2;
2737 u32 vl_select_mask;
2738 int vfi;
2739
2740 req = (struct opa_port_error_counters64_msg *)pmp->data;
2741
2742 num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2743
2744 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
2745 num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
2746
2747 if (num_ports != 1 || num_ports != num_pslm) {
2748 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2749 return reply((struct ib_mad_hdr *)pmp);
2750 }
2751
2752 response_data_size = sizeof(struct opa_port_error_counters64_msg) +
2753 num_vls * sizeof(struct _vls_ectrs);
2754
2755 if (response_data_size > sizeof(pmp->data)) {
2756 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2757 return reply((struct ib_mad_hdr *)pmp);
2758 }
2759 /*
2760 * The bit set in the mask needs to be consistent with the
2761 * port the request came in on.
2762 */
2763 port_mask = be64_to_cpu(req->port_select_mask[3]);
2764 port_num = find_first_bit((unsigned long *)&port_mask,
2765 sizeof(port_mask));
2766
2767 if ((u8)port_num != port) {
2768 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2769 return reply((struct ib_mad_hdr *)pmp);
2770 }
2771
2772 rsp = (struct _port_ectrs *)&(req->port[0]);
2773
2774 ibp = to_iport(ibdev, port_num);
2775 ppd = ppd_from_ibp(ibp);
2776
2777 memset(rsp, 0, sizeof(*rsp));
2778 rsp->port_number = (u8)port_num;
2779
2780 rsp->port_rcv_constraint_errors =
2781 cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
2782 CNTR_INVALID_VL));
2783 /* port_rcv_switch_relay_errors is 0 for HFIs */
2784 rsp->port_xmit_discards =
2785 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD,
2786 CNTR_INVALID_VL));
2787 rsp->port_rcv_remote_physical_errors =
2788 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
2789 CNTR_INVALID_VL));
2790 tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
2791 tmp2 = tmp + read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
2792 if (tmp2 < tmp) {
2793 /* overflow/wrapped */
2794 rsp->local_link_integrity_errors = cpu_to_be64(~0);
2795 } else {
2796 rsp->local_link_integrity_errors = cpu_to_be64(tmp2);
2797 }
2798 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
2799 tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
2800 CNTR_INVALID_VL);
2801 if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) {
2802 /* overflow/wrapped */
2803 rsp->link_error_recovery = cpu_to_be32(~0);
2804 } else {
2805 rsp->link_error_recovery = cpu_to_be32(tmp2);
2806 }
2807 rsp->port_xmit_constraint_errors =
2808 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
2809 CNTR_INVALID_VL));
2810 rsp->excessive_buffer_overruns =
2811 cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL));
2812 rsp->fm_config_errors =
2813 cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR,
2814 CNTR_INVALID_VL));
2815 rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN,
2816 CNTR_INVALID_VL));
2817 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
2818 rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff;
2819
2820 vlinfo = (struct _vls_ectrs *)&(rsp->vls[0]);
2821 vfi = 0;
2822 vl_select_mask = be32_to_cpu(req->vl_select_mask);
2823 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2824 8 * sizeof(req->vl_select_mask)) {
2825 memset(vlinfo, 0, sizeof(*vlinfo));
2826 /* vlinfo->vls[vfi].port_vl_xmit_discards ??? */
2827 vlinfo += 1;
2828 vfi++;
2829 }
2830
2831 if (resp_len)
2832 *resp_len += response_data_size;
2833
2834 return reply((struct ib_mad_hdr *)pmp);
2835 }
2836
pma_get_opa_errorinfo(struct opa_pma_mad * pmp,struct ib_device * ibdev,u8 port,u32 * resp_len)2837 static int pma_get_opa_errorinfo(struct opa_pma_mad *pmp,
2838 struct ib_device *ibdev, u8 port, u32 *resp_len)
2839 {
2840 size_t response_data_size;
2841 struct _port_ei *rsp;
2842 struct opa_port_error_info_msg *req;
2843 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2844 u64 port_mask;
2845 u32 num_ports;
2846 unsigned long port_num;
2847 u8 num_pslm;
2848 u64 reg;
2849
2850 req = (struct opa_port_error_info_msg *)pmp->data;
2851 rsp = (struct _port_ei *)&(req->port[0]);
2852
2853 num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod));
2854 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
2855
2856 memset(rsp, 0, sizeof(*rsp));
2857
2858 if (num_ports != 1 || num_ports != num_pslm) {
2859 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2860 return reply((struct ib_mad_hdr *)pmp);
2861 }
2862
2863 /* Sanity check */
2864 response_data_size = sizeof(struct opa_port_error_info_msg);
2865
2866 if (response_data_size > sizeof(pmp->data)) {
2867 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2868 return reply((struct ib_mad_hdr *)pmp);
2869 }
2870
2871 /*
2872 * The bit set in the mask needs to be consistent with the port
2873 * the request came in on.
2874 */
2875 port_mask = be64_to_cpu(req->port_select_mask[3]);
2876 port_num = find_first_bit((unsigned long *)&port_mask,
2877 sizeof(port_mask));
2878
2879 if ((u8)port_num != port) {
2880 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2881 return reply((struct ib_mad_hdr *)pmp);
2882 }
2883
2884 /* PortRcvErrorInfo */
2885 rsp->port_rcv_ei.status_and_code =
2886 dd->err_info_rcvport.status_and_code;
2887 memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit1,
2888 &dd->err_info_rcvport.packet_flit1, sizeof(u64));
2889 memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit2,
2890 &dd->err_info_rcvport.packet_flit2, sizeof(u64));
2891
2892 /* ExcessiverBufferOverrunInfo */
2893 reg = read_csr(dd, RCV_ERR_INFO);
2894 if (reg & RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK) {
2895 /* if the RcvExcessBufferOverrun bit is set, save SC of
2896 * first pkt that encountered an excess buffer overrun */
2897 u8 tmp = (u8)reg;
2898
2899 tmp &= RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SC_SMASK;
2900 tmp <<= 2;
2901 rsp->excessive_buffer_overrun_ei.status_and_sc = tmp;
2902 /* set the status bit */
2903 rsp->excessive_buffer_overrun_ei.status_and_sc |= 0x80;
2904 }
2905
2906 rsp->port_xmit_constraint_ei.status =
2907 dd->err_info_xmit_constraint.status;
2908 rsp->port_xmit_constraint_ei.pkey =
2909 cpu_to_be16(dd->err_info_xmit_constraint.pkey);
2910 rsp->port_xmit_constraint_ei.slid =
2911 cpu_to_be32(dd->err_info_xmit_constraint.slid);
2912
2913 rsp->port_rcv_constraint_ei.status =
2914 dd->err_info_rcv_constraint.status;
2915 rsp->port_rcv_constraint_ei.pkey =
2916 cpu_to_be16(dd->err_info_rcv_constraint.pkey);
2917 rsp->port_rcv_constraint_ei.slid =
2918 cpu_to_be32(dd->err_info_rcv_constraint.slid);
2919
2920 /* UncorrectableErrorInfo */
2921 rsp->uncorrectable_ei.status_and_code = dd->err_info_uncorrectable;
2922
2923 /* FMConfigErrorInfo */
2924 rsp->fm_config_ei.status_and_code = dd->err_info_fmconfig;
2925
2926 if (resp_len)
2927 *resp_len += response_data_size;
2928
2929 return reply((struct ib_mad_hdr *)pmp);
2930 }
2931
pma_set_opa_portstatus(struct opa_pma_mad * pmp,struct ib_device * ibdev,u8 port,u32 * resp_len)2932 static int pma_set_opa_portstatus(struct opa_pma_mad *pmp,
2933 struct ib_device *ibdev, u8 port, u32 *resp_len)
2934 {
2935 struct opa_clear_port_status *req =
2936 (struct opa_clear_port_status *)pmp->data;
2937 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2938 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2939 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2940 u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2941 u64 portn = be64_to_cpu(req->port_select_mask[3]);
2942 u32 counter_select = be32_to_cpu(req->counter_select_mask);
2943 u32 vl_select_mask = VL_MASK_ALL; /* clear all per-vl cnts */
2944 unsigned long vl;
2945
2946 if ((nports != 1) || (portn != 1 << port)) {
2947 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2948 return reply((struct ib_mad_hdr *)pmp);
2949 }
2950 /*
2951 * only counters returned by pma_get_opa_portstatus() are
2952 * handled, so when pma_get_opa_portstatus() gets a fix,
2953 * the corresponding change should be made here as well.
2954 */
2955
2956 if (counter_select & CS_PORT_XMIT_DATA)
2957 write_dev_cntr(dd, C_DC_XMIT_FLITS, CNTR_INVALID_VL, 0);
2958
2959 if (counter_select & CS_PORT_RCV_DATA)
2960 write_dev_cntr(dd, C_DC_RCV_FLITS, CNTR_INVALID_VL, 0);
2961
2962 if (counter_select & CS_PORT_XMIT_PKTS)
2963 write_dev_cntr(dd, C_DC_XMIT_PKTS, CNTR_INVALID_VL, 0);
2964
2965 if (counter_select & CS_PORT_RCV_PKTS)
2966 write_dev_cntr(dd, C_DC_RCV_PKTS, CNTR_INVALID_VL, 0);
2967
2968 if (counter_select & CS_PORT_MCAST_XMIT_PKTS)
2969 write_dev_cntr(dd, C_DC_MC_XMIT_PKTS, CNTR_INVALID_VL, 0);
2970
2971 if (counter_select & CS_PORT_MCAST_RCV_PKTS)
2972 write_dev_cntr(dd, C_DC_MC_RCV_PKTS, CNTR_INVALID_VL, 0);
2973
2974 if (counter_select & CS_PORT_XMIT_WAIT)
2975 write_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL, 0);
2976
2977 /* ignore cs_sw_portCongestion for HFIs */
2978
2979 if (counter_select & CS_PORT_RCV_FECN)
2980 write_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL, 0);
2981
2982 if (counter_select & CS_PORT_RCV_BECN)
2983 write_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL, 0);
2984
2985 /* ignore cs_port_xmit_time_cong for HFIs */
2986 /* ignore cs_port_xmit_wasted_bw for now */
2987 /* ignore cs_port_xmit_wait_data for now */
2988 if (counter_select & CS_PORT_RCV_BUBBLE)
2989 write_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL, 0);
2990
2991 /* Only applicable for switch */
2992 /*if (counter_select & CS_PORT_MARK_FECN)
2993 write_csr(dd, DCC_PRF_PORT_MARK_FECN_CNT, 0);*/
2994
2995 if (counter_select & CS_PORT_RCV_CONSTRAINT_ERRORS)
2996 write_port_cntr(ppd, C_SW_RCV_CSTR_ERR, CNTR_INVALID_VL, 0);
2997
2998 /* ignore cs_port_rcv_switch_relay_errors for HFIs */
2999 if (counter_select & CS_PORT_XMIT_DISCARDS)
3000 write_port_cntr(ppd, C_SW_XMIT_DSCD, CNTR_INVALID_VL, 0);
3001
3002 if (counter_select & CS_PORT_XMIT_CONSTRAINT_ERRORS)
3003 write_port_cntr(ppd, C_SW_XMIT_CSTR_ERR, CNTR_INVALID_VL, 0);
3004
3005 if (counter_select & CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS)
3006 write_dev_cntr(dd, C_DC_RMT_PHY_ERR, CNTR_INVALID_VL, 0);
3007
3008 if (counter_select & CS_LOCAL_LINK_INTEGRITY_ERRORS) {
3009 write_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL, 0);
3010 write_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL, 0);
3011 }
3012
3013 if (counter_select & CS_LINK_ERROR_RECOVERY) {
3014 write_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL, 0);
3015 write_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
3016 CNTR_INVALID_VL, 0);
3017 }
3018
3019 if (counter_select & CS_PORT_RCV_ERRORS)
3020 write_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL, 0);
3021
3022 if (counter_select & CS_EXCESSIVE_BUFFER_OVERRUNS) {
3023 write_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL, 0);
3024 dd->rcv_ovfl_cnt = 0;
3025 }
3026
3027 if (counter_select & CS_FM_CONFIG_ERRORS)
3028 write_dev_cntr(dd, C_DC_FM_CFG_ERR, CNTR_INVALID_VL, 0);
3029
3030 if (counter_select & CS_LINK_DOWNED)
3031 write_port_cntr(ppd, C_SW_LINK_DOWN, CNTR_INVALID_VL, 0);
3032
3033 if (counter_select & CS_UNCORRECTABLE_ERRORS)
3034 write_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL, 0);
3035
3036 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
3037 8 * sizeof(vl_select_mask)) {
3038
3039 if (counter_select & CS_PORT_XMIT_DATA)
3040 write_port_cntr(ppd, C_TX_FLIT_VL, idx_from_vl(vl), 0);
3041
3042 if (counter_select & CS_PORT_RCV_DATA)
3043 write_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl), 0);
3044
3045 if (counter_select & CS_PORT_XMIT_PKTS)
3046 write_port_cntr(ppd, C_TX_PKT_VL, idx_from_vl(vl), 0);
3047
3048 if (counter_select & CS_PORT_RCV_PKTS)
3049 write_dev_cntr(dd, C_DC_RX_PKT_VL, idx_from_vl(vl), 0);
3050
3051 if (counter_select & CS_PORT_XMIT_WAIT)
3052 write_port_cntr(ppd, C_TX_WAIT_VL, idx_from_vl(vl), 0);
3053
3054 /* sw_port_vl_congestion is 0 for HFIs */
3055 if (counter_select & CS_PORT_RCV_FECN)
3056 write_dev_cntr(dd, C_DC_RCV_FCN_VL, idx_from_vl(vl), 0);
3057
3058 if (counter_select & CS_PORT_RCV_BECN)
3059 write_dev_cntr(dd, C_DC_RCV_BCN_VL, idx_from_vl(vl), 0);
3060
3061 /* port_vl_xmit_time_cong is 0 for HFIs */
3062 /* port_vl_xmit_wasted_bw ??? */
3063 /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ??? */
3064 if (counter_select & CS_PORT_RCV_BUBBLE)
3065 write_dev_cntr(dd, C_DC_RCV_BBL_VL, idx_from_vl(vl), 0);
3066
3067 /*if (counter_select & CS_PORT_MARK_FECN)
3068 write_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT + offset, 0);
3069 */
3070 /* port_vl_xmit_discards ??? */
3071 }
3072
3073 if (resp_len)
3074 *resp_len += sizeof(*req);
3075
3076 return reply((struct ib_mad_hdr *)pmp);
3077 }
3078
pma_set_opa_errorinfo(struct opa_pma_mad * pmp,struct ib_device * ibdev,u8 port,u32 * resp_len)3079 static int pma_set_opa_errorinfo(struct opa_pma_mad *pmp,
3080 struct ib_device *ibdev, u8 port, u32 *resp_len)
3081 {
3082 struct _port_ei *rsp;
3083 struct opa_port_error_info_msg *req;
3084 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
3085 u64 port_mask;
3086 u32 num_ports;
3087 unsigned long port_num;
3088 u8 num_pslm;
3089 u32 error_info_select;
3090
3091 req = (struct opa_port_error_info_msg *)pmp->data;
3092 rsp = (struct _port_ei *)&(req->port[0]);
3093
3094 num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod));
3095 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
3096
3097 memset(rsp, 0, sizeof(*rsp));
3098
3099 if (num_ports != 1 || num_ports != num_pslm) {
3100 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3101 return reply((struct ib_mad_hdr *)pmp);
3102 }
3103
3104 /*
3105 * The bit set in the mask needs to be consistent with the port
3106 * the request came in on.
3107 */
3108 port_mask = be64_to_cpu(req->port_select_mask[3]);
3109 port_num = find_first_bit((unsigned long *)&port_mask,
3110 sizeof(port_mask));
3111
3112 if ((u8)port_num != port) {
3113 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3114 return reply((struct ib_mad_hdr *)pmp);
3115 }
3116
3117 error_info_select = be32_to_cpu(req->error_info_select_mask);
3118
3119 /* PortRcvErrorInfo */
3120 if (error_info_select & ES_PORT_RCV_ERROR_INFO)
3121 /* turn off status bit */
3122 dd->err_info_rcvport.status_and_code &= ~OPA_EI_STATUS_SMASK;
3123
3124 /* ExcessiverBufferOverrunInfo */
3125 if (error_info_select & ES_EXCESSIVE_BUFFER_OVERRUN_INFO)
3126 /* status bit is essentially kept in the h/w - bit 5 of
3127 * RCV_ERR_INFO */
3128 write_csr(dd, RCV_ERR_INFO,
3129 RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK);
3130
3131 if (error_info_select & ES_PORT_XMIT_CONSTRAINT_ERROR_INFO)
3132 dd->err_info_xmit_constraint.status &= ~OPA_EI_STATUS_SMASK;
3133
3134 if (error_info_select & ES_PORT_RCV_CONSTRAINT_ERROR_INFO)
3135 dd->err_info_rcv_constraint.status &= ~OPA_EI_STATUS_SMASK;
3136
3137 /* UncorrectableErrorInfo */
3138 if (error_info_select & ES_UNCORRECTABLE_ERROR_INFO)
3139 /* turn off status bit */
3140 dd->err_info_uncorrectable &= ~OPA_EI_STATUS_SMASK;
3141
3142 /* FMConfigErrorInfo */
3143 if (error_info_select & ES_FM_CONFIG_ERROR_INFO)
3144 /* turn off status bit */
3145 dd->err_info_fmconfig &= ~OPA_EI_STATUS_SMASK;
3146
3147 if (resp_len)
3148 *resp_len += sizeof(*req);
3149
3150 return reply((struct ib_mad_hdr *)pmp);
3151 }
3152
3153 struct opa_congestion_info_attr {
3154 __be16 congestion_info;
3155 u8 control_table_cap; /* Multiple of 64 entry unit CCTs */
3156 u8 congestion_log_length;
3157 } __packed;
3158
__subn_get_opa_cong_info(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3159 static int __subn_get_opa_cong_info(struct opa_smp *smp, u32 am, u8 *data,
3160 struct ib_device *ibdev, u8 port,
3161 u32 *resp_len)
3162 {
3163 struct opa_congestion_info_attr *p =
3164 (struct opa_congestion_info_attr *)data;
3165 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3166 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3167
3168 p->congestion_info = 0;
3169 p->control_table_cap = ppd->cc_max_table_entries;
3170 p->congestion_log_length = OPA_CONG_LOG_ELEMS;
3171
3172 if (resp_len)
3173 *resp_len += sizeof(*p);
3174
3175 return reply((struct ib_mad_hdr *)smp);
3176 }
3177
__subn_get_opa_cong_setting(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3178 static int __subn_get_opa_cong_setting(struct opa_smp *smp, u32 am,
3179 u8 *data,
3180 struct ib_device *ibdev,
3181 u8 port, u32 *resp_len)
3182 {
3183 int i;
3184 struct opa_congestion_setting_attr *p =
3185 (struct opa_congestion_setting_attr *) data;
3186 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3187 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3188 struct opa_congestion_setting_entry_shadow *entries;
3189 struct cc_state *cc_state;
3190
3191 rcu_read_lock();
3192
3193 cc_state = get_cc_state(ppd);
3194
3195 if (cc_state == NULL) {
3196 rcu_read_unlock();
3197 return reply((struct ib_mad_hdr *)smp);
3198 }
3199
3200 entries = cc_state->cong_setting.entries;
3201 p->port_control = cpu_to_be16(cc_state->cong_setting.port_control);
3202 p->control_map = cpu_to_be32(cc_state->cong_setting.control_map);
3203 for (i = 0; i < OPA_MAX_SLS; i++) {
3204 p->entries[i].ccti_increase = entries[i].ccti_increase;
3205 p->entries[i].ccti_timer = cpu_to_be16(entries[i].ccti_timer);
3206 p->entries[i].trigger_threshold =
3207 entries[i].trigger_threshold;
3208 p->entries[i].ccti_min = entries[i].ccti_min;
3209 }
3210
3211 rcu_read_unlock();
3212
3213 if (resp_len)
3214 *resp_len += sizeof(*p);
3215
3216 return reply((struct ib_mad_hdr *)smp);
3217 }
3218
__subn_set_opa_cong_setting(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3219 static int __subn_set_opa_cong_setting(struct opa_smp *smp, u32 am, u8 *data,
3220 struct ib_device *ibdev, u8 port,
3221 u32 *resp_len)
3222 {
3223 struct opa_congestion_setting_attr *p =
3224 (struct opa_congestion_setting_attr *) data;
3225 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3226 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3227 struct opa_congestion_setting_entry_shadow *entries;
3228 int i;
3229
3230 ppd->cc_sl_control_map = be32_to_cpu(p->control_map);
3231
3232 entries = ppd->congestion_entries;
3233 for (i = 0; i < OPA_MAX_SLS; i++) {
3234 entries[i].ccti_increase = p->entries[i].ccti_increase;
3235 entries[i].ccti_timer = be16_to_cpu(p->entries[i].ccti_timer);
3236 entries[i].trigger_threshold =
3237 p->entries[i].trigger_threshold;
3238 entries[i].ccti_min = p->entries[i].ccti_min;
3239 }
3240
3241 return __subn_get_opa_cong_setting(smp, am, data, ibdev, port,
3242 resp_len);
3243 }
3244
__subn_get_opa_hfi1_cong_log(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3245 static int __subn_get_opa_hfi1_cong_log(struct opa_smp *smp, u32 am,
3246 u8 *data, struct ib_device *ibdev,
3247 u8 port, u32 *resp_len)
3248 {
3249 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3250 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3251 struct opa_hfi1_cong_log *cong_log = (struct opa_hfi1_cong_log *)data;
3252 s64 ts;
3253 int i;
3254
3255 if (am != 0) {
3256 smp->status |= IB_SMP_INVALID_FIELD;
3257 return reply((struct ib_mad_hdr *)smp);
3258 }
3259
3260 spin_lock_irq(&ppd->cc_log_lock);
3261
3262 cong_log->log_type = OPA_CC_LOG_TYPE_HFI;
3263 cong_log->congestion_flags = 0;
3264 cong_log->threshold_event_counter =
3265 cpu_to_be16(ppd->threshold_event_counter);
3266 memcpy(cong_log->threshold_cong_event_map,
3267 ppd->threshold_cong_event_map,
3268 sizeof(cong_log->threshold_cong_event_map));
3269 /* keep timestamp in units of 1.024 usec */
3270 ts = ktime_to_ns(ktime_get()) / 1024;
3271 cong_log->current_time_stamp = cpu_to_be32(ts);
3272 for (i = 0; i < OPA_CONG_LOG_ELEMS; i++) {
3273 struct opa_hfi1_cong_log_event_internal *cce =
3274 &ppd->cc_events[ppd->cc_mad_idx++];
3275 if (ppd->cc_mad_idx == OPA_CONG_LOG_ELEMS)
3276 ppd->cc_mad_idx = 0;
3277 /*
3278 * Entries which are older than twice the time
3279 * required to wrap the counter are supposed to
3280 * be zeroed (CA10-49 IBTA, release 1.2.1, V1).
3281 */
3282 if ((u64)(ts - cce->timestamp) > (2 * UINT_MAX))
3283 continue;
3284 memcpy(cong_log->events[i].local_qp_cn_entry, &cce->lqpn, 3);
3285 memcpy(cong_log->events[i].remote_qp_number_cn_entry,
3286 &cce->rqpn, 3);
3287 cong_log->events[i].sl_svc_type_cn_entry =
3288 ((cce->sl & 0x1f) << 3) | (cce->svc_type & 0x7);
3289 cong_log->events[i].remote_lid_cn_entry =
3290 cpu_to_be32(cce->rlid);
3291 cong_log->events[i].timestamp_cn_entry =
3292 cpu_to_be32(cce->timestamp);
3293 }
3294
3295 /*
3296 * Reset threshold_cong_event_map, and threshold_event_counter
3297 * to 0 when log is read.
3298 */
3299 memset(ppd->threshold_cong_event_map, 0x0,
3300 sizeof(ppd->threshold_cong_event_map));
3301 ppd->threshold_event_counter = 0;
3302
3303 spin_unlock_irq(&ppd->cc_log_lock);
3304
3305 if (resp_len)
3306 *resp_len += sizeof(struct opa_hfi1_cong_log);
3307
3308 return reply((struct ib_mad_hdr *)smp);
3309 }
3310
__subn_get_opa_cc_table(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3311 static int __subn_get_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data,
3312 struct ib_device *ibdev, u8 port,
3313 u32 *resp_len)
3314 {
3315 struct ib_cc_table_attr *cc_table_attr =
3316 (struct ib_cc_table_attr *) data;
3317 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3318 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3319 u32 start_block = OPA_AM_START_BLK(am);
3320 u32 n_blocks = OPA_AM_NBLK(am);
3321 struct ib_cc_table_entry_shadow *entries;
3322 int i, j;
3323 u32 sentry, eentry;
3324 struct cc_state *cc_state;
3325
3326 /* sanity check n_blocks, start_block */
3327 if (n_blocks == 0 ||
3328 start_block + n_blocks > ppd->cc_max_table_entries) {
3329 smp->status |= IB_SMP_INVALID_FIELD;
3330 return reply((struct ib_mad_hdr *)smp);
3331 }
3332
3333 rcu_read_lock();
3334
3335 cc_state = get_cc_state(ppd);
3336
3337 if (cc_state == NULL) {
3338 rcu_read_unlock();
3339 return reply((struct ib_mad_hdr *)smp);
3340 }
3341
3342 sentry = start_block * IB_CCT_ENTRIES;
3343 eentry = sentry + (IB_CCT_ENTRIES * n_blocks);
3344
3345 cc_table_attr->ccti_limit = cpu_to_be16(cc_state->cct.ccti_limit);
3346
3347 entries = cc_state->cct.entries;
3348
3349 /* return n_blocks, though the last block may not be full */
3350 for (j = 0, i = sentry; i < eentry; j++, i++)
3351 cc_table_attr->ccti_entries[j].entry =
3352 cpu_to_be16(entries[i].entry);
3353
3354 rcu_read_unlock();
3355
3356 if (resp_len)
3357 *resp_len += sizeof(u16)*(IB_CCT_ENTRIES * n_blocks + 1);
3358
3359 return reply((struct ib_mad_hdr *)smp);
3360 }
3361
cc_state_reclaim(struct rcu_head * rcu)3362 void cc_state_reclaim(struct rcu_head *rcu)
3363 {
3364 struct cc_state *cc_state = container_of(rcu, struct cc_state, rcu);
3365
3366 kfree(cc_state);
3367 }
3368
__subn_set_opa_cc_table(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3369 static int __subn_set_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data,
3370 struct ib_device *ibdev, u8 port,
3371 u32 *resp_len)
3372 {
3373 struct ib_cc_table_attr *p = (struct ib_cc_table_attr *) data;
3374 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3375 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3376 u32 start_block = OPA_AM_START_BLK(am);
3377 u32 n_blocks = OPA_AM_NBLK(am);
3378 struct ib_cc_table_entry_shadow *entries;
3379 int i, j;
3380 u32 sentry, eentry;
3381 u16 ccti_limit;
3382 struct cc_state *old_cc_state, *new_cc_state;
3383
3384 /* sanity check n_blocks, start_block */
3385 if (n_blocks == 0 ||
3386 start_block + n_blocks > ppd->cc_max_table_entries) {
3387 smp->status |= IB_SMP_INVALID_FIELD;
3388 return reply((struct ib_mad_hdr *)smp);
3389 }
3390
3391 sentry = start_block * IB_CCT_ENTRIES;
3392 eentry = sentry + ((n_blocks - 1) * IB_CCT_ENTRIES) +
3393 (be16_to_cpu(p->ccti_limit)) % IB_CCT_ENTRIES + 1;
3394
3395 /* sanity check ccti_limit */
3396 ccti_limit = be16_to_cpu(p->ccti_limit);
3397 if (ccti_limit + 1 > eentry) {
3398 smp->status |= IB_SMP_INVALID_FIELD;
3399 return reply((struct ib_mad_hdr *)smp);
3400 }
3401
3402 new_cc_state = kzalloc(sizeof(*new_cc_state), GFP_KERNEL);
3403 if (new_cc_state == NULL)
3404 goto getit;
3405
3406 spin_lock(&ppd->cc_state_lock);
3407
3408 old_cc_state = get_cc_state(ppd);
3409
3410 if (old_cc_state == NULL) {
3411 spin_unlock(&ppd->cc_state_lock);
3412 kfree(new_cc_state);
3413 return reply((struct ib_mad_hdr *)smp);
3414 }
3415
3416 *new_cc_state = *old_cc_state;
3417
3418 new_cc_state->cct.ccti_limit = ccti_limit;
3419
3420 entries = ppd->ccti_entries;
3421 ppd->total_cct_entry = ccti_limit + 1;
3422
3423 for (j = 0, i = sentry; i < eentry; j++, i++)
3424 entries[i].entry = be16_to_cpu(p->ccti_entries[j].entry);
3425
3426 memcpy(new_cc_state->cct.entries, entries,
3427 eentry * sizeof(struct ib_cc_table_entry));
3428
3429 new_cc_state->cong_setting.port_control = IB_CC_CCS_PC_SL_BASED;
3430 new_cc_state->cong_setting.control_map = ppd->cc_sl_control_map;
3431 memcpy(new_cc_state->cong_setting.entries, ppd->congestion_entries,
3432 OPA_MAX_SLS * sizeof(struct opa_congestion_setting_entry));
3433
3434 rcu_assign_pointer(ppd->cc_state, new_cc_state);
3435
3436 spin_unlock(&ppd->cc_state_lock);
3437
3438 call_rcu(&old_cc_state->rcu, cc_state_reclaim);
3439
3440 getit:
3441 return __subn_get_opa_cc_table(smp, am, data, ibdev, port, resp_len);
3442 }
3443
3444 struct opa_led_info {
3445 __be32 rsvd_led_mask;
3446 __be32 rsvd;
3447 };
3448
3449 #define OPA_LED_SHIFT 31
3450 #define OPA_LED_MASK (1 << OPA_LED_SHIFT)
3451
__subn_get_opa_led_info(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3452 static int __subn_get_opa_led_info(struct opa_smp *smp, u32 am, u8 *data,
3453 struct ib_device *ibdev, u8 port,
3454 u32 *resp_len)
3455 {
3456 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
3457 struct opa_led_info *p = (struct opa_led_info *) data;
3458 u32 nport = OPA_AM_NPORT(am);
3459 u64 reg;
3460
3461 if (nport != 1 || OPA_AM_PORTNUM(am)) {
3462 smp->status |= IB_SMP_INVALID_FIELD;
3463 return reply((struct ib_mad_hdr *)smp);
3464 }
3465
3466 reg = read_csr(dd, DCC_CFG_LED_CNTRL);
3467 if ((reg & DCC_CFG_LED_CNTRL_LED_CNTRL_SMASK) &&
3468 ((reg & DCC_CFG_LED_CNTRL_LED_SW_BLINK_RATE_SMASK) == 0xf))
3469 p->rsvd_led_mask = cpu_to_be32(OPA_LED_MASK);
3470
3471 if (resp_len)
3472 *resp_len += sizeof(struct opa_led_info);
3473
3474 return reply((struct ib_mad_hdr *)smp);
3475 }
3476
__subn_set_opa_led_info(struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3477 static int __subn_set_opa_led_info(struct opa_smp *smp, u32 am, u8 *data,
3478 struct ib_device *ibdev, u8 port,
3479 u32 *resp_len)
3480 {
3481 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
3482 struct opa_led_info *p = (struct opa_led_info *) data;
3483 u32 nport = OPA_AM_NPORT(am);
3484 int on = !!(be32_to_cpu(p->rsvd_led_mask) & OPA_LED_MASK);
3485
3486 if (nport != 1 || OPA_AM_PORTNUM(am)) {
3487 smp->status |= IB_SMP_INVALID_FIELD;
3488 return reply((struct ib_mad_hdr *)smp);
3489 }
3490
3491 setextled(dd, on);
3492
3493 return __subn_get_opa_led_info(smp, am, data, ibdev, port, resp_len);
3494 }
3495
subn_get_opa_sma(__be16 attr_id,struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3496 static int subn_get_opa_sma(__be16 attr_id, struct opa_smp *smp, u32 am,
3497 u8 *data, struct ib_device *ibdev, u8 port,
3498 u32 *resp_len)
3499 {
3500 int ret;
3501 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3502
3503 switch (attr_id) {
3504 case IB_SMP_ATTR_NODE_DESC:
3505 ret = __subn_get_opa_nodedesc(smp, am, data, ibdev, port,
3506 resp_len);
3507 break;
3508 case IB_SMP_ATTR_NODE_INFO:
3509 ret = __subn_get_opa_nodeinfo(smp, am, data, ibdev, port,
3510 resp_len);
3511 break;
3512 case IB_SMP_ATTR_PORT_INFO:
3513 ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port,
3514 resp_len);
3515 break;
3516 case IB_SMP_ATTR_PKEY_TABLE:
3517 ret = __subn_get_opa_pkeytable(smp, am, data, ibdev, port,
3518 resp_len);
3519 break;
3520 case OPA_ATTRIB_ID_SL_TO_SC_MAP:
3521 ret = __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port,
3522 resp_len);
3523 break;
3524 case OPA_ATTRIB_ID_SC_TO_SL_MAP:
3525 ret = __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port,
3526 resp_len);
3527 break;
3528 case OPA_ATTRIB_ID_SC_TO_VLT_MAP:
3529 ret = __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port,
3530 resp_len);
3531 break;
3532 case OPA_ATTRIB_ID_SC_TO_VLNT_MAP:
3533 ret = __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port,
3534 resp_len);
3535 break;
3536 case OPA_ATTRIB_ID_PORT_STATE_INFO:
3537 ret = __subn_get_opa_psi(smp, am, data, ibdev, port,
3538 resp_len);
3539 break;
3540 case OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE:
3541 ret = __subn_get_opa_bct(smp, am, data, ibdev, port,
3542 resp_len);
3543 break;
3544 case OPA_ATTRIB_ID_CABLE_INFO:
3545 ret = __subn_get_opa_cable_info(smp, am, data, ibdev, port,
3546 resp_len);
3547 break;
3548 case IB_SMP_ATTR_VL_ARB_TABLE:
3549 ret = __subn_get_opa_vl_arb(smp, am, data, ibdev, port,
3550 resp_len);
3551 break;
3552 case OPA_ATTRIB_ID_CONGESTION_INFO:
3553 ret = __subn_get_opa_cong_info(smp, am, data, ibdev, port,
3554 resp_len);
3555 break;
3556 case OPA_ATTRIB_ID_HFI_CONGESTION_SETTING:
3557 ret = __subn_get_opa_cong_setting(smp, am, data, ibdev,
3558 port, resp_len);
3559 break;
3560 case OPA_ATTRIB_ID_HFI_CONGESTION_LOG:
3561 ret = __subn_get_opa_hfi1_cong_log(smp, am, data, ibdev,
3562 port, resp_len);
3563 break;
3564 case OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE:
3565 ret = __subn_get_opa_cc_table(smp, am, data, ibdev, port,
3566 resp_len);
3567 break;
3568 case IB_SMP_ATTR_LED_INFO:
3569 ret = __subn_get_opa_led_info(smp, am, data, ibdev, port,
3570 resp_len);
3571 break;
3572 case IB_SMP_ATTR_SM_INFO:
3573 if (ibp->port_cap_flags & IB_PORT_SM_DISABLED)
3574 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
3575 if (ibp->port_cap_flags & IB_PORT_SM)
3576 return IB_MAD_RESULT_SUCCESS;
3577 /* FALLTHROUGH */
3578 default:
3579 smp->status |= IB_SMP_UNSUP_METH_ATTR;
3580 ret = reply((struct ib_mad_hdr *)smp);
3581 break;
3582 }
3583 return ret;
3584 }
3585
subn_set_opa_sma(__be16 attr_id,struct opa_smp * smp,u32 am,u8 * data,struct ib_device * ibdev,u8 port,u32 * resp_len)3586 static int subn_set_opa_sma(__be16 attr_id, struct opa_smp *smp, u32 am,
3587 u8 *data, struct ib_device *ibdev, u8 port,
3588 u32 *resp_len)
3589 {
3590 int ret;
3591 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3592
3593 switch (attr_id) {
3594 case IB_SMP_ATTR_PORT_INFO:
3595 ret = __subn_set_opa_portinfo(smp, am, data, ibdev, port,
3596 resp_len);
3597 break;
3598 case IB_SMP_ATTR_PKEY_TABLE:
3599 ret = __subn_set_opa_pkeytable(smp, am, data, ibdev, port,
3600 resp_len);
3601 break;
3602 case OPA_ATTRIB_ID_SL_TO_SC_MAP:
3603 ret = __subn_set_opa_sl_to_sc(smp, am, data, ibdev, port,
3604 resp_len);
3605 break;
3606 case OPA_ATTRIB_ID_SC_TO_SL_MAP:
3607 ret = __subn_set_opa_sc_to_sl(smp, am, data, ibdev, port,
3608 resp_len);
3609 break;
3610 case OPA_ATTRIB_ID_SC_TO_VLT_MAP:
3611 ret = __subn_set_opa_sc_to_vlt(smp, am, data, ibdev, port,
3612 resp_len);
3613 break;
3614 case OPA_ATTRIB_ID_SC_TO_VLNT_MAP:
3615 ret = __subn_set_opa_sc_to_vlnt(smp, am, data, ibdev, port,
3616 resp_len);
3617 break;
3618 case OPA_ATTRIB_ID_PORT_STATE_INFO:
3619 ret = __subn_set_opa_psi(smp, am, data, ibdev, port,
3620 resp_len);
3621 break;
3622 case OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE:
3623 ret = __subn_set_opa_bct(smp, am, data, ibdev, port,
3624 resp_len);
3625 break;
3626 case IB_SMP_ATTR_VL_ARB_TABLE:
3627 ret = __subn_set_opa_vl_arb(smp, am, data, ibdev, port,
3628 resp_len);
3629 break;
3630 case OPA_ATTRIB_ID_HFI_CONGESTION_SETTING:
3631 ret = __subn_set_opa_cong_setting(smp, am, data, ibdev,
3632 port, resp_len);
3633 break;
3634 case OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE:
3635 ret = __subn_set_opa_cc_table(smp, am, data, ibdev, port,
3636 resp_len);
3637 break;
3638 case IB_SMP_ATTR_LED_INFO:
3639 ret = __subn_set_opa_led_info(smp, am, data, ibdev, port,
3640 resp_len);
3641 break;
3642 case IB_SMP_ATTR_SM_INFO:
3643 if (ibp->port_cap_flags & IB_PORT_SM_DISABLED)
3644 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
3645 if (ibp->port_cap_flags & IB_PORT_SM)
3646 return IB_MAD_RESULT_SUCCESS;
3647 /* FALLTHROUGH */
3648 default:
3649 smp->status |= IB_SMP_UNSUP_METH_ATTR;
3650 ret = reply((struct ib_mad_hdr *)smp);
3651 break;
3652 }
3653 return ret;
3654 }
3655
set_aggr_error(struct opa_aggregate * ag)3656 static inline void set_aggr_error(struct opa_aggregate *ag)
3657 {
3658 ag->err_reqlength |= cpu_to_be16(0x8000);
3659 }
3660
subn_get_opa_aggregate(struct opa_smp * smp,struct ib_device * ibdev,u8 port,u32 * resp_len)3661 static int subn_get_opa_aggregate(struct opa_smp *smp,
3662 struct ib_device *ibdev, u8 port,
3663 u32 *resp_len)
3664 {
3665 int i;
3666 u32 num_attr = be32_to_cpu(smp->attr_mod) & 0x000000ff;
3667 u8 *next_smp = opa_get_smp_data(smp);
3668
3669 if (num_attr < 1 || num_attr > 117) {
3670 smp->status |= IB_SMP_INVALID_FIELD;
3671 return reply((struct ib_mad_hdr *)smp);
3672 }
3673
3674 for (i = 0; i < num_attr; i++) {
3675 struct opa_aggregate *agg;
3676 size_t agg_data_len;
3677 size_t agg_size;
3678 u32 am;
3679
3680 agg = (struct opa_aggregate *)next_smp;
3681 agg_data_len = (be16_to_cpu(agg->err_reqlength) & 0x007f) * 8;
3682 agg_size = sizeof(*agg) + agg_data_len;
3683 am = be32_to_cpu(agg->attr_mod);
3684
3685 *resp_len += agg_size;
3686
3687 if (next_smp + agg_size > ((u8 *)smp) + sizeof(*smp)) {
3688 smp->status |= IB_SMP_INVALID_FIELD;
3689 return reply((struct ib_mad_hdr *)smp);
3690 }
3691
3692 /* zero the payload for this segment */
3693 memset(next_smp + sizeof(*agg), 0, agg_data_len);
3694
3695 (void) subn_get_opa_sma(agg->attr_id, smp, am, agg->data,
3696 ibdev, port, NULL);
3697 if (smp->status & ~IB_SMP_DIRECTION) {
3698 set_aggr_error(agg);
3699 return reply((struct ib_mad_hdr *)smp);
3700 }
3701 next_smp += agg_size;
3702
3703 }
3704
3705 return reply((struct ib_mad_hdr *)smp);
3706 }
3707
subn_set_opa_aggregate(struct opa_smp * smp,struct ib_device * ibdev,u8 port,u32 * resp_len)3708 static int subn_set_opa_aggregate(struct opa_smp *smp,
3709 struct ib_device *ibdev, u8 port,
3710 u32 *resp_len)
3711 {
3712 int i;
3713 u32 num_attr = be32_to_cpu(smp->attr_mod) & 0x000000ff;
3714 u8 *next_smp = opa_get_smp_data(smp);
3715
3716 if (num_attr < 1 || num_attr > 117) {
3717 smp->status |= IB_SMP_INVALID_FIELD;
3718 return reply((struct ib_mad_hdr *)smp);
3719 }
3720
3721 for (i = 0; i < num_attr; i++) {
3722 struct opa_aggregate *agg;
3723 size_t agg_data_len;
3724 size_t agg_size;
3725 u32 am;
3726
3727 agg = (struct opa_aggregate *)next_smp;
3728 agg_data_len = (be16_to_cpu(agg->err_reqlength) & 0x007f) * 8;
3729 agg_size = sizeof(*agg) + agg_data_len;
3730 am = be32_to_cpu(agg->attr_mod);
3731
3732 *resp_len += agg_size;
3733
3734 if (next_smp + agg_size > ((u8 *)smp) + sizeof(*smp)) {
3735 smp->status |= IB_SMP_INVALID_FIELD;
3736 return reply((struct ib_mad_hdr *)smp);
3737 }
3738
3739 (void) subn_set_opa_sma(agg->attr_id, smp, am, agg->data,
3740 ibdev, port, NULL);
3741 if (smp->status & ~IB_SMP_DIRECTION) {
3742 set_aggr_error(agg);
3743 return reply((struct ib_mad_hdr *)smp);
3744 }
3745 next_smp += agg_size;
3746
3747 }
3748
3749 return reply((struct ib_mad_hdr *)smp);
3750 }
3751
3752 /*
3753 * OPAv1 specifies that, on the transition to link up, these counters
3754 * are cleared:
3755 * PortRcvErrors [*]
3756 * LinkErrorRecovery
3757 * LocalLinkIntegrityErrors
3758 * ExcessiveBufferOverruns [*]
3759 *
3760 * [*] Error info associated with these counters is retained, but the
3761 * error info status is reset to 0.
3762 */
clear_linkup_counters(struct hfi1_devdata * dd)3763 void clear_linkup_counters(struct hfi1_devdata *dd)
3764 {
3765 /* PortRcvErrors */
3766 write_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL, 0);
3767 dd->err_info_rcvport.status_and_code &= ~OPA_EI_STATUS_SMASK;
3768 /* LinkErrorRecovery */
3769 write_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL, 0);
3770 write_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, CNTR_INVALID_VL, 0);
3771 /* LocalLinkIntegrityErrors */
3772 write_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL, 0);
3773 write_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL, 0);
3774 /* ExcessiveBufferOverruns */
3775 write_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL, 0);
3776 dd->rcv_ovfl_cnt = 0;
3777 dd->err_info_xmit_constraint.status &= ~OPA_EI_STATUS_SMASK;
3778 }
3779
3780 /*
3781 * is_local_mad() returns 1 if 'mad' is sent from, and destined to the
3782 * local node, 0 otherwise.
3783 */
is_local_mad(struct hfi1_ibport * ibp,const struct opa_mad * mad,const struct ib_wc * in_wc)3784 static int is_local_mad(struct hfi1_ibport *ibp, const struct opa_mad *mad,
3785 const struct ib_wc *in_wc)
3786 {
3787 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3788 const struct opa_smp *smp = (const struct opa_smp *)mad;
3789
3790 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
3791 return (smp->hop_cnt == 0 &&
3792 smp->route.dr.dr_slid == OPA_LID_PERMISSIVE &&
3793 smp->route.dr.dr_dlid == OPA_LID_PERMISSIVE);
3794 }
3795
3796 return (in_wc->slid == ppd->lid);
3797 }
3798
3799 /*
3800 * opa_local_smp_check() should only be called on MADs for which
3801 * is_local_mad() returns true. It applies the SMP checks that are
3802 * specific to SMPs which are sent from, and destined to this node.
3803 * opa_local_smp_check() returns 0 if the SMP passes its checks, 1
3804 * otherwise.
3805 *
3806 * SMPs which arrive from other nodes are instead checked by
3807 * opa_smp_check().
3808 */
opa_local_smp_check(struct hfi1_ibport * ibp,const struct ib_wc * in_wc)3809 static int opa_local_smp_check(struct hfi1_ibport *ibp,
3810 const struct ib_wc *in_wc)
3811 {
3812 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3813 u16 slid = in_wc->slid;
3814 u16 pkey;
3815
3816 if (in_wc->pkey_index >= ARRAY_SIZE(ppd->pkeys))
3817 return 1;
3818
3819 pkey = ppd->pkeys[in_wc->pkey_index];
3820 /*
3821 * We need to do the "node-local" checks specified in OPAv1,
3822 * rev 0.90, section 9.10.26, which are:
3823 * - pkey is 0x7fff, or 0xffff
3824 * - Source QPN == 0 || Destination QPN == 0
3825 * - the MAD header's management class is either
3826 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE or
3827 * IB_MGMT_CLASS_SUBN_LID_ROUTED
3828 * - SLID != 0
3829 *
3830 * However, we know (and so don't need to check again) that,
3831 * for local SMPs, the MAD stack passes MADs with:
3832 * - Source QPN of 0
3833 * - MAD mgmt_class is IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
3834 * - SLID is either: OPA_LID_PERMISSIVE (0xFFFFFFFF), or
3835 * our own port's lid
3836 *
3837 */
3838 if (pkey == LIM_MGMT_P_KEY || pkey == FULL_MGMT_P_KEY)
3839 return 0;
3840 ingress_pkey_table_fail(ppd, pkey, slid);
3841 return 1;
3842 }
3843
process_subn_opa(struct ib_device * ibdev,int mad_flags,u8 port,const struct opa_mad * in_mad,struct opa_mad * out_mad,u32 * resp_len)3844 static int process_subn_opa(struct ib_device *ibdev, int mad_flags,
3845 u8 port, const struct opa_mad *in_mad,
3846 struct opa_mad *out_mad,
3847 u32 *resp_len)
3848 {
3849 struct opa_smp *smp = (struct opa_smp *)out_mad;
3850 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3851 u8 *data;
3852 u32 am;
3853 __be16 attr_id;
3854 int ret;
3855
3856 *out_mad = *in_mad;
3857 data = opa_get_smp_data(smp);
3858
3859 am = be32_to_cpu(smp->attr_mod);
3860 attr_id = smp->attr_id;
3861 if (smp->class_version != OPA_SMI_CLASS_VERSION) {
3862 smp->status |= IB_SMP_UNSUP_VERSION;
3863 ret = reply((struct ib_mad_hdr *)smp);
3864 goto bail;
3865 }
3866 ret = check_mkey(ibp, (struct ib_mad_hdr *)smp, mad_flags, smp->mkey,
3867 smp->route.dr.dr_slid, smp->route.dr.return_path,
3868 smp->hop_cnt);
3869 if (ret) {
3870 u32 port_num = be32_to_cpu(smp->attr_mod);
3871
3872 /*
3873 * If this is a get/set portinfo, we already check the
3874 * M_Key if the MAD is for another port and the M_Key
3875 * is OK on the receiving port. This check is needed
3876 * to increment the error counters when the M_Key
3877 * fails to match on *both* ports.
3878 */
3879 if (attr_id == IB_SMP_ATTR_PORT_INFO &&
3880 (smp->method == IB_MGMT_METHOD_GET ||
3881 smp->method == IB_MGMT_METHOD_SET) &&
3882 port_num && port_num <= ibdev->phys_port_cnt &&
3883 port != port_num)
3884 (void) check_mkey(to_iport(ibdev, port_num),
3885 (struct ib_mad_hdr *)smp, 0,
3886 smp->mkey, smp->route.dr.dr_slid,
3887 smp->route.dr.return_path,
3888 smp->hop_cnt);
3889 ret = IB_MAD_RESULT_FAILURE;
3890 goto bail;
3891 }
3892
3893 *resp_len = opa_get_smp_header_size(smp);
3894
3895 switch (smp->method) {
3896 case IB_MGMT_METHOD_GET:
3897 switch (attr_id) {
3898 default:
3899 clear_opa_smp_data(smp);
3900 ret = subn_get_opa_sma(attr_id, smp, am, data,
3901 ibdev, port, resp_len);
3902 goto bail;
3903 case OPA_ATTRIB_ID_AGGREGATE:
3904 ret = subn_get_opa_aggregate(smp, ibdev, port,
3905 resp_len);
3906 goto bail;
3907 }
3908 case IB_MGMT_METHOD_SET:
3909 switch (attr_id) {
3910 default:
3911 ret = subn_set_opa_sma(attr_id, smp, am, data,
3912 ibdev, port, resp_len);
3913 goto bail;
3914 case OPA_ATTRIB_ID_AGGREGATE:
3915 ret = subn_set_opa_aggregate(smp, ibdev, port,
3916 resp_len);
3917 goto bail;
3918 }
3919 case IB_MGMT_METHOD_TRAP:
3920 case IB_MGMT_METHOD_REPORT:
3921 case IB_MGMT_METHOD_REPORT_RESP:
3922 case IB_MGMT_METHOD_GET_RESP:
3923 /*
3924 * The ib_mad module will call us to process responses
3925 * before checking for other consumers.
3926 * Just tell the caller to process it normally.
3927 */
3928 ret = IB_MAD_RESULT_SUCCESS;
3929 goto bail;
3930 default:
3931 smp->status |= IB_SMP_UNSUP_METHOD;
3932 ret = reply((struct ib_mad_hdr *)smp);
3933 }
3934
3935 bail:
3936 return ret;
3937 }
3938
process_subn(struct ib_device * ibdev,int mad_flags,u8 port,const struct ib_mad * in_mad,struct ib_mad * out_mad)3939 static int process_subn(struct ib_device *ibdev, int mad_flags,
3940 u8 port, const struct ib_mad *in_mad,
3941 struct ib_mad *out_mad)
3942 {
3943 struct ib_smp *smp = (struct ib_smp *)out_mad;
3944 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3945 int ret;
3946
3947 *out_mad = *in_mad;
3948 if (smp->class_version != 1) {
3949 smp->status |= IB_SMP_UNSUP_VERSION;
3950 ret = reply((struct ib_mad_hdr *)smp);
3951 goto bail;
3952 }
3953
3954 ret = check_mkey(ibp, (struct ib_mad_hdr *)smp, mad_flags,
3955 smp->mkey, (__force __be32)smp->dr_slid,
3956 smp->return_path, smp->hop_cnt);
3957 if (ret) {
3958 u32 port_num = be32_to_cpu(smp->attr_mod);
3959
3960 /*
3961 * If this is a get/set portinfo, we already check the
3962 * M_Key if the MAD is for another port and the M_Key
3963 * is OK on the receiving port. This check is needed
3964 * to increment the error counters when the M_Key
3965 * fails to match on *both* ports.
3966 */
3967 if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO &&
3968 (smp->method == IB_MGMT_METHOD_GET ||
3969 smp->method == IB_MGMT_METHOD_SET) &&
3970 port_num && port_num <= ibdev->phys_port_cnt &&
3971 port != port_num)
3972 (void) check_mkey(to_iport(ibdev, port_num),
3973 (struct ib_mad_hdr *)smp, 0,
3974 smp->mkey,
3975 (__force __be32)smp->dr_slid,
3976 smp->return_path, smp->hop_cnt);
3977 ret = IB_MAD_RESULT_FAILURE;
3978 goto bail;
3979 }
3980
3981 switch (smp->method) {
3982 case IB_MGMT_METHOD_GET:
3983 switch (smp->attr_id) {
3984 case IB_SMP_ATTR_NODE_INFO:
3985 ret = subn_get_nodeinfo(smp, ibdev, port);
3986 goto bail;
3987 default:
3988 smp->status |= IB_SMP_UNSUP_METH_ATTR;
3989 ret = reply((struct ib_mad_hdr *)smp);
3990 goto bail;
3991 }
3992 }
3993
3994 bail:
3995 return ret;
3996 }
3997
process_perf_opa(struct ib_device * ibdev,u8 port,const struct opa_mad * in_mad,struct opa_mad * out_mad,u32 * resp_len)3998 static int process_perf_opa(struct ib_device *ibdev, u8 port,
3999 const struct opa_mad *in_mad,
4000 struct opa_mad *out_mad, u32 *resp_len)
4001 {
4002 struct opa_pma_mad *pmp = (struct opa_pma_mad *)out_mad;
4003 int ret;
4004
4005 *out_mad = *in_mad;
4006
4007 if (pmp->mad_hdr.class_version != OPA_SMI_CLASS_VERSION) {
4008 pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION;
4009 return reply((struct ib_mad_hdr *)pmp);
4010 }
4011
4012 *resp_len = sizeof(pmp->mad_hdr);
4013
4014 switch (pmp->mad_hdr.method) {
4015 case IB_MGMT_METHOD_GET:
4016 switch (pmp->mad_hdr.attr_id) {
4017 case IB_PMA_CLASS_PORT_INFO:
4018 ret = pma_get_opa_classportinfo(pmp, ibdev, resp_len);
4019 goto bail;
4020 case OPA_PM_ATTRIB_ID_PORT_STATUS:
4021 ret = pma_get_opa_portstatus(pmp, ibdev, port,
4022 resp_len);
4023 goto bail;
4024 case OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS:
4025 ret = pma_get_opa_datacounters(pmp, ibdev, port,
4026 resp_len);
4027 goto bail;
4028 case OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS:
4029 ret = pma_get_opa_porterrors(pmp, ibdev, port,
4030 resp_len);
4031 goto bail;
4032 case OPA_PM_ATTRIB_ID_ERROR_INFO:
4033 ret = pma_get_opa_errorinfo(pmp, ibdev, port,
4034 resp_len);
4035 goto bail;
4036 default:
4037 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
4038 ret = reply((struct ib_mad_hdr *)pmp);
4039 goto bail;
4040 }
4041
4042 case IB_MGMT_METHOD_SET:
4043 switch (pmp->mad_hdr.attr_id) {
4044 case OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS:
4045 ret = pma_set_opa_portstatus(pmp, ibdev, port,
4046 resp_len);
4047 goto bail;
4048 case OPA_PM_ATTRIB_ID_ERROR_INFO:
4049 ret = pma_set_opa_errorinfo(pmp, ibdev, port,
4050 resp_len);
4051 goto bail;
4052 default:
4053 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
4054 ret = reply((struct ib_mad_hdr *)pmp);
4055 goto bail;
4056 }
4057
4058 case IB_MGMT_METHOD_TRAP:
4059 case IB_MGMT_METHOD_GET_RESP:
4060 /*
4061 * The ib_mad module will call us to process responses
4062 * before checking for other consumers.
4063 * Just tell the caller to process it normally.
4064 */
4065 ret = IB_MAD_RESULT_SUCCESS;
4066 goto bail;
4067
4068 default:
4069 pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD;
4070 ret = reply((struct ib_mad_hdr *)pmp);
4071 }
4072
4073 bail:
4074 return ret;
4075 }
4076
hfi1_process_opa_mad(struct ib_device * ibdev,int mad_flags,u8 port,const struct ib_wc * in_wc,const struct ib_grh * in_grh,const struct opa_mad * in_mad,struct opa_mad * out_mad,size_t * out_mad_size,u16 * out_mad_pkey_index)4077 static int hfi1_process_opa_mad(struct ib_device *ibdev, int mad_flags,
4078 u8 port, const struct ib_wc *in_wc,
4079 const struct ib_grh *in_grh,
4080 const struct opa_mad *in_mad,
4081 struct opa_mad *out_mad, size_t *out_mad_size,
4082 u16 *out_mad_pkey_index)
4083 {
4084 int ret;
4085 int pkey_idx;
4086 u32 resp_len = 0;
4087 struct hfi1_ibport *ibp = to_iport(ibdev, port);
4088
4089 pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY);
4090 if (pkey_idx < 0) {
4091 pr_warn("failed to find limited mgmt pkey, defaulting 0x%x\n",
4092 hfi1_get_pkey(ibp, 1));
4093 pkey_idx = 1;
4094 }
4095 *out_mad_pkey_index = (u16)pkey_idx;
4096
4097 switch (in_mad->mad_hdr.mgmt_class) {
4098 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
4099 case IB_MGMT_CLASS_SUBN_LID_ROUTED:
4100 if (is_local_mad(ibp, in_mad, in_wc)) {
4101 ret = opa_local_smp_check(ibp, in_wc);
4102 if (ret)
4103 return IB_MAD_RESULT_FAILURE;
4104 }
4105 ret = process_subn_opa(ibdev, mad_flags, port, in_mad,
4106 out_mad, &resp_len);
4107 goto bail;
4108 case IB_MGMT_CLASS_PERF_MGMT:
4109 ret = process_perf_opa(ibdev, port, in_mad, out_mad,
4110 &resp_len);
4111 goto bail;
4112
4113 default:
4114 ret = IB_MAD_RESULT_SUCCESS;
4115 }
4116
4117 bail:
4118 if (ret & IB_MAD_RESULT_REPLY)
4119 *out_mad_size = round_up(resp_len, 8);
4120 else if (ret & IB_MAD_RESULT_SUCCESS)
4121 *out_mad_size = in_wc->byte_len - sizeof(struct ib_grh);
4122
4123 return ret;
4124 }
4125
hfi1_process_ib_mad(struct ib_device * ibdev,int mad_flags,u8 port,const struct ib_wc * in_wc,const struct ib_grh * in_grh,const struct ib_mad * in_mad,struct ib_mad * out_mad)4126 static int hfi1_process_ib_mad(struct ib_device *ibdev, int mad_flags, u8 port,
4127 const struct ib_wc *in_wc,
4128 const struct ib_grh *in_grh,
4129 const struct ib_mad *in_mad,
4130 struct ib_mad *out_mad)
4131 {
4132 int ret;
4133
4134 switch (in_mad->mad_hdr.mgmt_class) {
4135 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
4136 case IB_MGMT_CLASS_SUBN_LID_ROUTED:
4137 ret = process_subn(ibdev, mad_flags, port, in_mad, out_mad);
4138 goto bail;
4139 default:
4140 ret = IB_MAD_RESULT_SUCCESS;
4141 }
4142
4143 bail:
4144 return ret;
4145 }
4146
4147 /**
4148 * hfi1_process_mad - process an incoming MAD packet
4149 * @ibdev: the infiniband device this packet came in on
4150 * @mad_flags: MAD flags
4151 * @port: the port number this packet came in on
4152 * @in_wc: the work completion entry for this packet
4153 * @in_grh: the global route header for this packet
4154 * @in_mad: the incoming MAD
4155 * @out_mad: any outgoing MAD reply
4156 *
4157 * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not
4158 * interested in processing.
4159 *
4160 * Note that the verbs framework has already done the MAD sanity checks,
4161 * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
4162 * MADs.
4163 *
4164 * This is called by the ib_mad module.
4165 */
hfi1_process_mad(struct ib_device * ibdev,int mad_flags,u8 port,const struct ib_wc * in_wc,const struct ib_grh * in_grh,const struct ib_mad_hdr * in_mad,size_t in_mad_size,struct ib_mad_hdr * out_mad,size_t * out_mad_size,u16 * out_mad_pkey_index)4166 int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u8 port,
4167 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
4168 const struct ib_mad_hdr *in_mad, size_t in_mad_size,
4169 struct ib_mad_hdr *out_mad, size_t *out_mad_size,
4170 u16 *out_mad_pkey_index)
4171 {
4172 switch (in_mad->base_version) {
4173 case OPA_MGMT_BASE_VERSION:
4174 if (unlikely(in_mad_size != sizeof(struct opa_mad))) {
4175 dev_err(ibdev->dma_device, "invalid in_mad_size\n");
4176 return IB_MAD_RESULT_FAILURE;
4177 }
4178 return hfi1_process_opa_mad(ibdev, mad_flags, port,
4179 in_wc, in_grh,
4180 (struct opa_mad *)in_mad,
4181 (struct opa_mad *)out_mad,
4182 out_mad_size,
4183 out_mad_pkey_index);
4184 case IB_MGMT_BASE_VERSION:
4185 return hfi1_process_ib_mad(ibdev, mad_flags, port,
4186 in_wc, in_grh,
4187 (const struct ib_mad *)in_mad,
4188 (struct ib_mad *)out_mad);
4189 default:
4190 break;
4191 }
4192
4193 return IB_MAD_RESULT_FAILURE;
4194 }
4195
send_handler(struct ib_mad_agent * agent,struct ib_mad_send_wc * mad_send_wc)4196 static void send_handler(struct ib_mad_agent *agent,
4197 struct ib_mad_send_wc *mad_send_wc)
4198 {
4199 ib_free_send_mad(mad_send_wc->send_buf);
4200 }
4201
hfi1_create_agents(struct hfi1_ibdev * dev)4202 int hfi1_create_agents(struct hfi1_ibdev *dev)
4203 {
4204 struct hfi1_devdata *dd = dd_from_dev(dev);
4205 struct ib_mad_agent *agent;
4206 struct hfi1_ibport *ibp;
4207 int p;
4208 int ret;
4209
4210 for (p = 0; p < dd->num_pports; p++) {
4211 ibp = &dd->pport[p].ibport_data;
4212 agent = ib_register_mad_agent(&dev->ibdev, p + 1, IB_QPT_SMI,
4213 NULL, 0, send_handler,
4214 NULL, NULL, 0);
4215 if (IS_ERR(agent)) {
4216 ret = PTR_ERR(agent);
4217 goto err;
4218 }
4219
4220 ibp->send_agent = agent;
4221 }
4222
4223 return 0;
4224
4225 err:
4226 for (p = 0; p < dd->num_pports; p++) {
4227 ibp = &dd->pport[p].ibport_data;
4228 if (ibp->send_agent) {
4229 agent = ibp->send_agent;
4230 ibp->send_agent = NULL;
4231 ib_unregister_mad_agent(agent);
4232 }
4233 }
4234
4235 return ret;
4236 }
4237
hfi1_free_agents(struct hfi1_ibdev * dev)4238 void hfi1_free_agents(struct hfi1_ibdev *dev)
4239 {
4240 struct hfi1_devdata *dd = dd_from_dev(dev);
4241 struct ib_mad_agent *agent;
4242 struct hfi1_ibport *ibp;
4243 int p;
4244
4245 for (p = 0; p < dd->num_pports; p++) {
4246 ibp = &dd->pport[p].ibport_data;
4247 if (ibp->send_agent) {
4248 agent = ibp->send_agent;
4249 ibp->send_agent = NULL;
4250 ib_unregister_mad_agent(agent);
4251 }
4252 if (ibp->sm_ah) {
4253 ib_destroy_ah(&ibp->sm_ah->ibah);
4254 ibp->sm_ah = NULL;
4255 }
4256 }
4257 }
4258