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Merge tag 'm68k-for-v4.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert...
[mirror_ubuntu-artful-kernel.git] / drivers / infiniband / hw / hfi1 / mad.c
CommitLineData
77241056 1/*
05d6ac1d 2 * Copyright(c) 2015, 2016 Intel Corporation.
77241056
MM		 3 *
4 * This file is provided under a dual BSD/GPLv2 license. When using or
5 * redistributing this file, you may do so under either license.
6 *
7 * GPL LICENSE SUMMARY
8 *
77241056
MM		 9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
11 * published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * BSD LICENSE
19 *
77241056
MM		 20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 *
24 * - Redistributions of source code must retain the above copyright
25 * notice, this list of conditions and the following disclaimer.
26 * - Redistributions in binary form must reproduce the above copyright
27 * notice, this list of conditions and the following disclaimer in
28 * the documentation and/or other materials provided with the
29 * distribution.
30 * - Neither the name of Intel Corporation nor the names of its
31 * contributors may be used to endorse or promote products derived
32 * from this software without specific prior written permission.
33 *
34 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
37 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
38 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
39 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
40 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
41 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
42 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
43 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45 *
46 */
47
48#include <linux/net.h>
49#define OPA_NUM_PKEY_BLOCKS_PER_SMP (OPA_SMP_DR_DATA_SIZE \
50 / (OPA_PARTITION_TABLE_BLK_SIZE * sizeof(u16)))
51
52#include "hfi.h"
53#include "mad.h"
54#include "trace.h"
0ec79e87 55#include "qp.h"
77241056
MM		 56
57/* the reset value from the FM is supposed to be 0xffff, handle both */
58#define OPA_LINK_WIDTH_RESET_OLD 0x0fff
59#define OPA_LINK_WIDTH_RESET 0xffff
60
61static int reply(struct ib_mad_hdr *smp)
62{
63 /*
64 * The verbs framework will handle the directed/LID route
65 * packet changes.
66 */
67 smp->method = IB_MGMT_METHOD_GET_RESP;
68 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
69 smp->status |= IB_SMP_DIRECTION;
70 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
71}
72
73static inline void clear_opa_smp_data(struct opa_smp *smp)
74{
75 void *data = opa_get_smp_data(smp);
76 size_t size = opa_get_smp_data_size(smp);
77
78 memset(data, 0, size);
79}
80
34d351f8
SS		 81void hfi1_event_pkey_change(struct hfi1_devdata *dd, u8 port)
82{
83 struct ib_event event;
84
85 event.event = IB_EVENT_PKEY_CHANGE;
86 event.device = &dd->verbs_dev.rdi.ibdev;
87 event.element.port_num = port;
88 ib_dispatch_event(&event);
89}
90
77241056
MM		 91static void send_trap(struct hfi1_ibport *ibp, void *data, unsigned len)
92{
93 struct ib_mad_send_buf *send_buf;
94 struct ib_mad_agent *agent;
5cd24119 95 struct opa_smp *smp;
77241056
MM		 96 int ret;
97 unsigned long flags;
98 unsigned long timeout;
99 int pkey_idx;
100 u32 qpn = ppd_from_ibp(ibp)->sm_trap_qp;
101
4eb06882 102 agent = ibp->rvp.send_agent;
77241056
MM		 103 if (!agent)
104 return;
105
106 /* o14-3.2.1 */
107 if (ppd_from_ibp(ibp)->lstate != IB_PORT_ACTIVE)
108 return;
109
110 /* o14-2 */
4eb06882
DD		 111 if (ibp->rvp.trap_timeout && time_before(jiffies,
112 ibp->rvp.trap_timeout))
77241056
MM		 113 return;
114
115 pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY);
116 if (pkey_idx < 0) {
117 pr_warn("%s: failed to find limited mgmt pkey, defaulting 0x%x\n",
118 __func__, hfi1_get_pkey(ibp, 1));
119 pkey_idx = 1;
120 }
121
122 send_buf = ib_create_send_mad(agent, qpn, pkey_idx, 0,
123 IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
124 GFP_ATOMIC, IB_MGMT_BASE_VERSION);
125 if (IS_ERR(send_buf))
126 return;
127
128 smp = send_buf->mad;
5cd24119 129 smp->base_version = OPA_MGMT_BASE_VERSION;
77241056 130 smp->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
5cd24119 131 smp->class_version = OPA_SMI_CLASS_VERSION;
77241056 132 smp->method = IB_MGMT_METHOD_TRAP;
4eb06882
DD		 133 ibp->rvp.tid++;
134 smp->tid = cpu_to_be64(ibp->rvp.tid);
77241056
MM		 135 smp->attr_id = IB_SMP_ATTR_NOTICE;
136 /* o14-1: smp->mkey = 0; */
5cd24119 137 memcpy(smp->route.lid.data, data, len);
77241056 138
4eb06882 139 spin_lock_irqsave(&ibp->rvp.lock, flags);
9c4a311e 140 if (!ibp->rvp.sm_ah) {
4eb06882 141 if (ibp->rvp.sm_lid != be16_to_cpu(IB_LID_PERMISSIVE)) {
77241056
MM		 142 struct ib_ah *ah;
143
4eb06882 144 ah = hfi1_create_qp0_ah(ibp, ibp->rvp.sm_lid);
e490974e 145 if (IS_ERR(ah)) {
77241056 146 ret = PTR_ERR(ah);
e490974e 147 } else {
77241056 148 send_buf->ah = ah;
9c4a311e 149 ibp->rvp.sm_ah = ibah_to_rvtah(ah);
77241056
MM		 150 ret = 0;
151 }
e490974e 152 } else {
77241056 153 ret = -EINVAL;
e490974e 154 }
77241056 155 } else {
9c4a311e 156 send_buf->ah = &ibp->rvp.sm_ah->ibah;
77241056
MM		 157 ret = 0;
158 }
4eb06882 159 spin_unlock_irqrestore(&ibp->rvp.lock, flags);
77241056
MM		 160
161 if (!ret)
162 ret = ib_post_send_mad(send_buf, NULL);
163 if (!ret) {
164 /* 4.096 usec. */
4eb06882
DD		 165 timeout = (4096 * (1UL << ibp->rvp.subnet_timeout)) / 1000;
166 ibp->rvp.trap_timeout = jiffies + usecs_to_jiffies(timeout);
77241056
MM		 167 } else {
168 ib_free_send_mad(send_buf);
4eb06882 169 ibp->rvp.trap_timeout = 0;
77241056
MM		 170 }
171}
172
173/*
174 * Send a bad [PQ]_Key trap (ch. 14.3.8).
175 */
176void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
5cd24119 177 u32 qp1, u32 qp2, u16 lid1, u16 lid2)
77241056 178{
5cd24119
EK		 179 struct opa_mad_notice_attr data;
180 u32 lid = ppd_from_ibp(ibp)->lid;
181 u32 _lid1 = lid1;
182 u32 _lid2 = lid2;
77241056 183
5cd24119
EK		 184 memset(&data, 0, sizeof(data));
185
186 if (trap_num == OPA_TRAP_BAD_P_KEY)
4eb06882 187 ibp->rvp.pkey_violations++;
77241056 188 else
4eb06882
DD		 189 ibp->rvp.qkey_violations++;
190 ibp->rvp.n_pkt_drops++;
77241056
MM		 191
192 /* Send violation trap */
193 data.generic_type = IB_NOTICE_TYPE_SECURITY;
77241056
MM		 194 data.prod_type_lsb = IB_NOTICE_PROD_CA;
195 data.trap_num = trap_num;
5cd24119
EK		 196 data.issuer_lid = cpu_to_be32(lid);
197 data.ntc_257_258.lid1 = cpu_to_be32(_lid1);
198 data.ntc_257_258.lid2 = cpu_to_be32(_lid2);
199 data.ntc_257_258.key = cpu_to_be32(key);
200 data.ntc_257_258.sl = sl << 3;
201 data.ntc_257_258.qp1 = cpu_to_be32(qp1);
202 data.ntc_257_258.qp2 = cpu_to_be32(qp2);
77241056
MM		 203
204 send_trap(ibp, &data, sizeof(data));
205}
206
207/*
208 * Send a bad M_Key trap (ch. 14.3.9).
209 */
210static void bad_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
211 __be64 mkey, __be32 dr_slid, u8 return_path[], u8 hop_cnt)
212{
5cd24119
EK		 213 struct opa_mad_notice_attr data;
214 u32 lid = ppd_from_ibp(ibp)->lid;
77241056 215
5cd24119 216 memset(&data, 0, sizeof(data));
77241056
MM		 217 /* Send violation trap */
218 data.generic_type = IB_NOTICE_TYPE_SECURITY;
77241056 219 data.prod_type_lsb = IB_NOTICE_PROD_CA;
5cd24119
EK		 220 data.trap_num = OPA_TRAP_BAD_M_KEY;
221 data.issuer_lid = cpu_to_be32(lid);
222 data.ntc_256.lid = data.issuer_lid;
223 data.ntc_256.method = mad->method;
224 data.ntc_256.attr_id = mad->attr_id;
225 data.ntc_256.attr_mod = mad->attr_mod;
226 data.ntc_256.mkey = mkey;
77241056 227 if (mad->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
5cd24119
EK		 228 data.ntc_256.dr_slid = dr_slid;
229 data.ntc_256.dr_trunc_hop = IB_NOTICE_TRAP_DR_NOTICE;
230 if (hop_cnt > ARRAY_SIZE(data.ntc_256.dr_rtn_path)) {
231 data.ntc_256.dr_trunc_hop |=
77241056 232 IB_NOTICE_TRAP_DR_TRUNC;
5cd24119 233 hop_cnt = ARRAY_SIZE(data.ntc_256.dr_rtn_path);
77241056 234 }
5cd24119
EK		 235 data.ntc_256.dr_trunc_hop |= hop_cnt;
236 memcpy(data.ntc_256.dr_rtn_path, return_path,
77241056
MM		 237 hop_cnt);
238 }
239
240 send_trap(ibp, &data, sizeof(data));
241}
242
243/*
244 * Send a Port Capability Mask Changed trap (ch. 14.3.11).
245 */
45b59eef 246void hfi1_cap_mask_chg(struct rvt_dev_info *rdi, u8 port_num)
77241056 247{
5cd24119 248 struct opa_mad_notice_attr data;
45b59eef
HC		 249 struct hfi1_ibdev *verbs_dev = dev_from_rdi(rdi);
250 struct hfi1_devdata *dd = dd_from_dev(verbs_dev);
251 struct hfi1_ibport *ibp = &dd->pport[port_num - 1].ibport_data;
5cd24119
EK		 252 u32 lid = ppd_from_ibp(ibp)->lid;
253
254 memset(&data, 0, sizeof(data));
77241056
MM		 255
256 data.generic_type = IB_NOTICE_TYPE_INFO;
77241056 257 data.prod_type_lsb = IB_NOTICE_PROD_CA;
5cd24119
EK		 258 data.trap_num = OPA_TRAP_CHANGE_CAPABILITY;
259 data.issuer_lid = cpu_to_be32(lid);
260 data.ntc_144.lid = data.issuer_lid;
4eb06882 261 data.ntc_144.new_cap_mask = cpu_to_be32(ibp->rvp.port_cap_flags);
77241056
MM		 262
263 send_trap(ibp, &data, sizeof(data));
264}
265
266/*
267 * Send a System Image GUID Changed trap (ch. 14.3.12).
268 */
269void hfi1_sys_guid_chg(struct hfi1_ibport *ibp)
270{
5cd24119
EK		 271 struct opa_mad_notice_attr data;
272 u32 lid = ppd_from_ibp(ibp)->lid;
273
274 memset(&data, 0, sizeof(data));
77241056
MM		 275
276 data.generic_type = IB_NOTICE_TYPE_INFO;
77241056 277 data.prod_type_lsb = IB_NOTICE_PROD_CA;
5cd24119
EK		 278 data.trap_num = OPA_TRAP_CHANGE_SYSGUID;
279 data.issuer_lid = cpu_to_be32(lid);
280 data.ntc_145.new_sys_guid = ib_hfi1_sys_image_guid;
281 data.ntc_145.lid = data.issuer_lid;
77241056
MM		 282
283 send_trap(ibp, &data, sizeof(data));
284}
285
286/*
287 * Send a Node Description Changed trap (ch. 14.3.13).
288 */
289void hfi1_node_desc_chg(struct hfi1_ibport *ibp)
290{
5cd24119
EK		 291 struct opa_mad_notice_attr data;
292 u32 lid = ppd_from_ibp(ibp)->lid;
293
294 memset(&data, 0, sizeof(data));
77241056
MM		 295
296 data.generic_type = IB_NOTICE_TYPE_INFO;
77241056 297 data.prod_type_lsb = IB_NOTICE_PROD_CA;
5cd24119
EK		 298 data.trap_num = OPA_TRAP_CHANGE_CAPABILITY;
299 data.issuer_lid = cpu_to_be32(lid);
300 data.ntc_144.lid = data.issuer_lid;
301 data.ntc_144.change_flags =
302 cpu_to_be16(OPA_NOTICE_TRAP_NODE_DESC_CHG);
77241056
MM		 303
304 send_trap(ibp, &data, sizeof(data));
305}
306
307static int __subn_get_opa_nodedesc(struct opa_smp *smp, u32 am,
308 u8 *data, struct ib_device *ibdev,
309 u8 port, u32 *resp_len)
310{
311 struct opa_node_description *nd;
312
313 if (am) {
314 smp->status |= IB_SMP_INVALID_FIELD;
315 return reply((struct ib_mad_hdr *)smp);
316 }
317
318 nd = (struct opa_node_description *)data;
319
320 memcpy(nd->data, ibdev->node_desc, sizeof(nd->data));
321
322 if (resp_len)
323 *resp_len += sizeof(*nd);
324
325 return reply((struct ib_mad_hdr *)smp);
326}
327
328static int __subn_get_opa_nodeinfo(struct opa_smp *smp, u32 am, u8 *data,
329 struct ib_device *ibdev, u8 port,
330 u32 *resp_len)
331{
332 struct opa_node_info *ni;
333 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
334 unsigned pidx = port - 1; /* IB number port from 1, hw from 0 */
335
336 ni = (struct opa_node_info *)data;
337
338 /* GUID 0 is illegal */
339 if (am || pidx >= dd->num_pports || dd->pport[pidx].guid == 0) {
340 smp->status |= IB_SMP_INVALID_FIELD;
341 return reply((struct ib_mad_hdr *)smp);
342 }
343
344 ni->port_guid = cpu_to_be64(dd->pport[pidx].guid);
345 ni->base_version = OPA_MGMT_BASE_VERSION;
346 ni->class_version = OPA_SMI_CLASS_VERSION;
347 ni->node_type = 1; /* channel adapter */
348 ni->num_ports = ibdev->phys_port_cnt;
349 /* This is already in network order */
350 ni->system_image_guid = ib_hfi1_sys_image_guid;
351 /* Use first-port GUID as node */
352 ni->node_guid = cpu_to_be64(dd->pport->guid);
353 ni->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd));
354 ni->device_id = cpu_to_be16(dd->pcidev->device);
355 ni->revision = cpu_to_be32(dd->minrev);
356 ni->local_port_num = port;
357 ni->vendor_id[0] = dd->oui1;
358 ni->vendor_id[1] = dd->oui2;
359 ni->vendor_id[2] = dd->oui3;
360
361 if (resp_len)
362 *resp_len += sizeof(*ni);
363
364 return reply((struct ib_mad_hdr *)smp);
365}
366
367static int subn_get_nodeinfo(struct ib_smp *smp, struct ib_device *ibdev,
368 u8 port)
369{
370 struct ib_node_info *nip = (struct ib_node_info *)&smp->data;
371 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
372 unsigned pidx = port - 1; /* IB number port from 1, hw from 0 */
373
374 /* GUID 0 is illegal */
375 if (smp->attr_mod || pidx >= dd->num_pports ||
376 dd->pport[pidx].guid == 0)
377 smp->status |= IB_SMP_INVALID_FIELD;
378 else
379 nip->port_guid = cpu_to_be64(dd->pport[pidx].guid);
380
381 nip->base_version = OPA_MGMT_BASE_VERSION;
382 nip->class_version = OPA_SMI_CLASS_VERSION;
383 nip->node_type = 1; /* channel adapter */
384 nip->num_ports = ibdev->phys_port_cnt;
385 /* This is already in network order */
386 nip->sys_guid = ib_hfi1_sys_image_guid;
387 /* Use first-port GUID as node */
388 nip->node_guid = cpu_to_be64(dd->pport->guid);
389 nip->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd));
390 nip->device_id = cpu_to_be16(dd->pcidev->device);
391 nip->revision = cpu_to_be32(dd->minrev);
392 nip->local_port_num = port;
393 nip->vendor_id[0] = dd->oui1;
394 nip->vendor_id[1] = dd->oui2;
395 nip->vendor_id[2] = dd->oui3;
396
397 return reply((struct ib_mad_hdr *)smp);
398}
399
400static void set_link_width_enabled(struct hfi1_pportdata *ppd, u32 w)
401{
402 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_ENB, w);
403}
404
405static void set_link_width_downgrade_enabled(struct hfi1_pportdata *ppd, u32 w)
406{
407 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_DG_ENB, w);
408}
409
410static void set_link_speed_enabled(struct hfi1_pportdata *ppd, u32 s)
411{
412 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_SPD_ENB, s);
413}
414
415static int check_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
416 int mad_flags, __be64 mkey, __be32 dr_slid,
417 u8 return_path[], u8 hop_cnt)
418{
419 int valid_mkey = 0;
420 int ret = 0;
421
422 /* Is the mkey in the process of expiring? */
4eb06882
DD		 423 if (ibp->rvp.mkey_lease_timeout &&
424 time_after_eq(jiffies, ibp->rvp.mkey_lease_timeout)) {
77241056 425 /* Clear timeout and mkey protection field. */
4eb06882
DD		 426 ibp->rvp.mkey_lease_timeout = 0;
427 ibp->rvp.mkeyprot = 0;
77241056
MM		 428 }
429
4eb06882
DD		 430 if ((mad_flags & IB_MAD_IGNORE_MKEY) || ibp->rvp.mkey == 0 ||
431 ibp->rvp.mkey == mkey)
77241056
MM		 432 valid_mkey = 1;
433
434 /* Unset lease timeout on any valid Get/Set/TrapRepress */
4eb06882 435 if (valid_mkey && ibp->rvp.mkey_lease_timeout &&
77241056
MM		 436 (mad->method == IB_MGMT_METHOD_GET ||
437 mad->method == IB_MGMT_METHOD_SET ||
438 mad->method == IB_MGMT_METHOD_TRAP_REPRESS))
4eb06882 439 ibp->rvp.mkey_lease_timeout = 0;
77241056
MM		 440
441 if (!valid_mkey) {
442 switch (mad->method) {
443 case IB_MGMT_METHOD_GET:
444 /* Bad mkey not a violation below level 2 */
4eb06882 445 if (ibp->rvp.mkeyprot < 2)
77241056
MM		 446 break;
447 case IB_MGMT_METHOD_SET:
448 case IB_MGMT_METHOD_TRAP_REPRESS:
4eb06882
DD		 449 if (ibp->rvp.mkey_violations != 0xFFFF)
450 ++ibp->rvp.mkey_violations;
451 if (!ibp->rvp.mkey_lease_timeout &&
452 ibp->rvp.mkey_lease_period)
453 ibp->rvp.mkey_lease_timeout = jiffies +
454 ibp->rvp.mkey_lease_period * HZ;
77241056
MM		 455 /* Generate a trap notice. */
456 bad_mkey(ibp, mad, mkey, dr_slid, return_path,
457 hop_cnt);
458 ret = 1;
459 }
460 }
461
462 return ret;
463}
464
465/*
466 * The SMA caches reads from LCB registers in case the LCB is unavailable.
467 * (The LCB is unavailable in certain link states, for example.)
468 */
469struct lcb_datum {
470 u32 off;
471 u64 val;
472};
473
474static struct lcb_datum lcb_cache[] = {
475 { DC_LCB_STS_ROUND_TRIP_LTP_CNT, 0 },
476};
477
478static int write_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 lcb_cache[i].val = val;
485 return 0;
486 }
487 }
488
489 pr_warn("%s bad offset 0x%x\n", __func__, off);
490 return -1;
491}
492
493static int read_lcb_cache(u32 off, u64 *val)
494{
495 int i;
496
497 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) {
498 if (lcb_cache[i].off == off) {
499 *val = lcb_cache[i].val;
500 return 0;
501 }
502 }
503
504 pr_warn("%s bad offset 0x%x\n", __func__, off);
505 return -1;
506}
507
508void read_ltp_rtt(struct hfi1_devdata *dd)
509{
510 u64 reg;
511
512 if (read_lcb_csr(dd, DC_LCB_STS_ROUND_TRIP_LTP_CNT, &reg))
513 dd_dev_err(dd, "%s: unable to read LTP RTT\n", __func__);
514 else
515 write_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, reg);
516}
517
77241056
MM		 518static int __subn_get_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
519 struct ib_device *ibdev, u8 port,
520 u32 *resp_len)
521{
522 int i;
523 struct hfi1_devdata *dd;
524 struct hfi1_pportdata *ppd;
525 struct hfi1_ibport *ibp;
526 struct opa_port_info *pi = (struct opa_port_info *)data;
527 u8 mtu;
528 u8 credit_rate;
409b1462 529 u8 is_beaconing_active;
77241056
MM		 530 u32 state;
531 u32 num_ports = OPA_AM_NPORT(am);
532 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
533 u32 buffer_units;
534 u64 tmp = 0;
535
536 if (num_ports != 1) {
537 smp->status |= IB_SMP_INVALID_FIELD;
538 return reply((struct ib_mad_hdr *)smp);
539 }
540
541 dd = dd_from_ibdev(ibdev);
542 /* IB numbers ports from 1, hw from 0 */
543 ppd = dd->pport + (port - 1);
544 ibp = &ppd->ibport_data;
545
8638b77f 546 if (ppd->vls_supported / 2 > ARRAY_SIZE(pi->neigh_mtu.pvlx_to_mtu) ||
17fb4f29 547 ppd->vls_supported > ARRAY_SIZE(dd->vld)) {
77241056
MM		 548 smp->status |= IB_SMP_INVALID_FIELD;
549 return reply((struct ib_mad_hdr *)smp);
550 }
551
552 pi->lid = cpu_to_be32(ppd->lid);
553
554 /* Only return the mkey if the protection field allows it. */
555 if (!(smp->method == IB_MGMT_METHOD_GET &&
4eb06882
DD		 556 ibp->rvp.mkey != smp->mkey &&
557 ibp->rvp.mkeyprot == 1))
558 pi->mkey = ibp->rvp.mkey;
559
560 pi->subnet_prefix = ibp->rvp.gid_prefix;
561 pi->sm_lid = cpu_to_be32(ibp->rvp.sm_lid);
562 pi->ib_cap_mask = cpu_to_be32(ibp->rvp.port_cap_flags);
563 pi->mkey_lease_period = cpu_to_be16(ibp->rvp.mkey_lease_period);
77241056
MM		 564 pi->sm_trap_qp = cpu_to_be32(ppd->sm_trap_qp);
565 pi->sa_qp = cpu_to_be32(ppd->sa_qp);
566
567 pi->link_width.enabled = cpu_to_be16(ppd->link_width_enabled);
568 pi->link_width.supported = cpu_to_be16(ppd->link_width_supported);
569 pi->link_width.active = cpu_to_be16(ppd->link_width_active);
570
571 pi->link_width_downgrade.supported =
572 cpu_to_be16(ppd->link_width_downgrade_supported);
573 pi->link_width_downgrade.enabled =
574 cpu_to_be16(ppd->link_width_downgrade_enabled);
575 pi->link_width_downgrade.tx_active =
576 cpu_to_be16(ppd->link_width_downgrade_tx_active);
577 pi->link_width_downgrade.rx_active =
578 cpu_to_be16(ppd->link_width_downgrade_rx_active);
579
580 pi->link_speed.supported = cpu_to_be16(ppd->link_speed_supported);
581 pi->link_speed.active = cpu_to_be16(ppd->link_speed_active);
582 pi->link_speed.enabled = cpu_to_be16(ppd->link_speed_enabled);
583
584 state = driver_lstate(ppd);
585
586 if (start_of_sm_config && (state == IB_PORT_INIT))
587 ppd->is_sm_config_started = 1;
588
1d01cf33 589 pi->port_phys_conf = (ppd->port_type & 0xf);
77241056
MM		 590
591#if PI_LED_ENABLE_SUP
592 pi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4;
593 pi->port_states.ledenable_offlinereason |=
594 ppd->is_sm_config_started << 5;
409b1462 595 /*
2243472e
EH		 596 * This pairs with the memory barrier in hfi1_start_led_override to
597 * ensure that we read the correct state of LED beaconing represented
598 * by led_override_timer_active
409b1462 599 */
2243472e 600 smp_rmb();
409b1462
EH		 601 is_beaconing_active = !!atomic_read(&ppd->led_override_timer_active);
602 pi->port_states.ledenable_offlinereason |= is_beaconing_active << 6;
77241056 603 pi->port_states.ledenable_offlinereason |=
a9c05e35 604 ppd->offline_disabled_reason;
77241056
MM		 605#else
606 pi->port_states.offline_reason = ppd->neighbor_normal << 4;
607 pi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
a9c05e35 608 pi->port_states.offline_reason |= ppd->offline_disabled_reason;
77241056
MM		 609#endif /* PI_LED_ENABLE_SUP */
610
611 pi->port_states.portphysstate_portstate =
612 (hfi1_ibphys_portstate(ppd) << 4) | state;
613
4eb06882 614 pi->mkeyprotect_lmc = (ibp->rvp.mkeyprot << 6) | ppd->lmc;
77241056
MM		 615
616 memset(pi->neigh_mtu.pvlx_to_mtu, 0, sizeof(pi->neigh_mtu.pvlx_to_mtu));
617 for (i = 0; i < ppd->vls_supported; i++) {
618 mtu = mtu_to_enum(dd->vld[i].mtu, HFI1_DEFAULT_ACTIVE_MTU);
619 if ((i % 2) == 0)
8638b77f 620 pi->neigh_mtu.pvlx_to_mtu[i / 2] |= (mtu << 4);
77241056 621 else
8638b77f 622 pi->neigh_mtu.pvlx_to_mtu[i / 2] |= mtu;
77241056
MM		 623 }
624 /* don't forget VL 15 */
625 mtu = mtu_to_enum(dd->vld[15].mtu, 2048);
8638b77f 626 pi->neigh_mtu.pvlx_to_mtu[15 / 2] |= mtu;
4eb06882 627 pi->smsl = ibp->rvp.sm_sl & OPA_PI_MASK_SMSL;
77241056
MM		 628 pi->operational_vls = hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS);
629 pi->partenforce_filterraw |=
630 (ppd->linkinit_reason & OPA_PI_MASK_LINKINIT_REASON);
631 if (ppd->part_enforce & HFI1_PART_ENFORCE_IN)
632 pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_IN;
633 if (ppd->part_enforce & HFI1_PART_ENFORCE_OUT)
634 pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_OUT;
4eb06882 635 pi->mkey_violations = cpu_to_be16(ibp->rvp.mkey_violations);
77241056 636 /* P_KeyViolations are counted by hardware. */
4eb06882
DD		 637 pi->pkey_violations = cpu_to_be16(ibp->rvp.pkey_violations);
638 pi->qkey_violations = cpu_to_be16(ibp->rvp.qkey_violations);
77241056
MM		 639
640 pi->vl.cap = ppd->vls_supported;
4eb06882 641 pi->vl.high_limit = cpu_to_be16(ibp->rvp.vl_high_limit);
77241056
MM		 642 pi->vl.arb_high_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_CAP);
643 pi->vl.arb_low_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_LOW_CAP);
644
4eb06882 645 pi->clientrereg_subnettimeout = ibp->rvp.subnet_timeout;
77241056
MM		 646
647 pi->port_link_mode = cpu_to_be16(OPA_PORT_LINK_MODE_OPA << 10 |
648 OPA_PORT_LINK_MODE_OPA << 5 |
649 OPA_PORT_LINK_MODE_OPA);
650
651 pi->port_ltp_crc_mode = cpu_to_be16(ppd->port_ltp_crc_mode);
652
653 pi->port_mode = cpu_to_be16(
654 ppd->is_active_optimize_enabled ?
655 OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE : 0);
656
657 pi->port_packet_format.supported =
658 cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B);
659 pi->port_packet_format.enabled =
660 cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B);
661
662 /* flit_control.interleave is (OPA V1, version .76):
663 * bits use
664 * ---- ---
665 * 2 res
666 * 2 DistanceSupported
667 * 2 DistanceEnabled
668 * 5 MaxNextLevelTxEnabled
669 * 5 MaxNestLevelRxSupported
670 *
671 * HFI supports only "distance mode 1" (see OPA V1, version .76,
672 * section 9.6.2), so set DistanceSupported, DistanceEnabled
673 * to 0x1.
674 */
675 pi->flit_control.interleave = cpu_to_be16(0x1400);
676
677 pi->link_down_reason = ppd->local_link_down_reason.sma;
678 pi->neigh_link_down_reason = ppd->neigh_link_down_reason.sma;
679 pi->port_error_action = cpu_to_be32(ppd->port_error_action);
680 pi->mtucap = mtu_to_enum(hfi1_max_mtu, IB_MTU_4096);
681
682 /* 32.768 usec. response time (guessing) */
683 pi->resptimevalue = 3;
684
685 pi->local_port_num = port;
686
687 /* buffer info for FM */
688 pi->overall_buffer_space = cpu_to_be16(dd->link_credits);
689
690 pi->neigh_node_guid = cpu_to_be64(ppd->neighbor_guid);
691 pi->neigh_port_num = ppd->neighbor_port_number;
692 pi->port_neigh_mode =
693 (ppd->neighbor_type & OPA_PI_MASK_NEIGH_NODE_TYPE) |
694 (ppd->mgmt_allowed ? OPA_PI_MASK_NEIGH_MGMT_ALLOWED : 0) |
695 (ppd->neighbor_fm_security ?
696 OPA_PI_MASK_NEIGH_FW_AUTH_BYPASS : 0);
697
698 /* HFIs shall always return VL15 credits to their
699 * neighbor in a timely manner, without any credit return pacing.
700 */
701 credit_rate = 0;
702 buffer_units = (dd->vau) & OPA_PI_MASK_BUF_UNIT_BUF_ALLOC;
703 buffer_units |= (dd->vcu << 3) & OPA_PI_MASK_BUF_UNIT_CREDIT_ACK;
704 buffer_units |= (credit_rate << 6) &
705 OPA_PI_MASK_BUF_UNIT_VL15_CREDIT_RATE;
706 buffer_units |= (dd->vl15_init << 11) & OPA_PI_MASK_BUF_UNIT_VL15_INIT;
707 pi->buffer_units = cpu_to_be32(buffer_units);
708
709 pi->opa_cap_mask = cpu_to_be16(OPA_CAP_MASK3_IsSharedSpaceSupported);
710
711 /* HFI supports a replay buffer 128 LTPs in size */
712 pi->replay_depth.buffer = 0x80;
713 /* read the cached value of DC_LCB_STS_ROUND_TRIP_LTP_CNT */
714 read_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, &tmp);
715
4d114fdd
JJ		 716 /*
717 * this counter is 16 bits wide, but the replay_depth.wire
718 * variable is only 8 bits
719 */
77241056
MM		 720 if (tmp > 0xff)
721 tmp = 0xff;
722 pi->replay_depth.wire = tmp;
723
724 if (resp_len)
725 *resp_len += sizeof(struct opa_port_info);
726
727 return reply((struct ib_mad_hdr *)smp);
728}
729
730/**
731 * get_pkeys - return the PKEY table
732 * @dd: the hfi1_ib device
733 * @port: the IB port number
734 * @pkeys: the pkey table is placed here
735 */
736static int get_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys)
737{
738 struct hfi1_pportdata *ppd = dd->pport + port - 1;
739
740 memcpy(pkeys, ppd->pkeys, sizeof(ppd->pkeys));
741
742 return 0;
743}
744
745static int __subn_get_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data,
746 struct ib_device *ibdev, u8 port,
747 u32 *resp_len)
748{
749 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
750 u32 n_blocks_req = OPA_AM_NBLK(am);
751 u32 start_block = am & 0x7ff;
752 __be16 *p;
753 u16 *q;
754 int i;
755 u16 n_blocks_avail;
756 unsigned npkeys = hfi1_get_npkeys(dd);
757 size_t size;
758
759 if (n_blocks_req == 0) {
760 pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n",
761 port, start_block, n_blocks_req);
762 smp->status |= IB_SMP_INVALID_FIELD;
763 return reply((struct ib_mad_hdr *)smp);
764 }
765
50e5dcbe 766 n_blocks_avail = (u16)(npkeys / OPA_PARTITION_TABLE_BLK_SIZE) + 1;
77241056
MM		 767
768 size = (n_blocks_req * OPA_PARTITION_TABLE_BLK_SIZE) * sizeof(u16);
769
770 if (start_block + n_blocks_req > n_blocks_avail ||
771 n_blocks_req > OPA_NUM_PKEY_BLOCKS_PER_SMP) {
772 pr_warn("OPA Get PKey AM Invalid : s 0x%x; req 0x%x; "
773 "avail 0x%x; blk/smp 0x%lx\n",
774 start_block, n_blocks_req, n_blocks_avail,
775 OPA_NUM_PKEY_BLOCKS_PER_SMP);
776 smp->status |= IB_SMP_INVALID_FIELD;
777 return reply((struct ib_mad_hdr *)smp);
778 }
779
50e5dcbe 780 p = (__be16 *)data;
77241056
MM		 781 q = (u16 *)data;
782 /* get the real pkeys if we are requesting the first block */
783 if (start_block == 0) {
784 get_pkeys(dd, port, q);
785 for (i = 0; i < npkeys; i++)
786 p[i] = cpu_to_be16(q[i]);
787 if (resp_len)
788 *resp_len += size;
e490974e 789 } else {
77241056 790 smp->status |= IB_SMP_INVALID_FIELD;
e490974e 791 }
77241056
MM		 792 return reply((struct ib_mad_hdr *)smp);
793}
794
795enum {
796 HFI_TRANSITION_DISALLOWED,
797 HFI_TRANSITION_IGNORED,
798 HFI_TRANSITION_ALLOWED,
799 HFI_TRANSITION_UNDEFINED,
800};
801
802/*
803 * Use shortened names to improve readability of
804 * {logical,physical}_state_transitions
805 */
806enum {
807 __D = HFI_TRANSITION_DISALLOWED,
808 __I = HFI_TRANSITION_IGNORED,
809 __A = HFI_TRANSITION_ALLOWED,
810 __U = HFI_TRANSITION_UNDEFINED,
811};
812
813/*
814 * IB_PORTPHYSSTATE_POLLING (2) through OPA_PORTPHYSSTATE_MAX (11) are
815 * represented in physical_state_transitions.
816 */
817#define __N_PHYSTATES (OPA_PORTPHYSSTATE_MAX - IB_PORTPHYSSTATE_POLLING + 1)
818
819/*
820 * Within physical_state_transitions, rows represent "old" states,
821 * columns "new" states, and physical_state_transitions.allowed[old][new]
822 * indicates if the transition from old state to new state is legal (see
823 * OPAg1v1, Table 6-4).
824 */
825static const struct {
826 u8 allowed[__N_PHYSTATES][__N_PHYSTATES];
827} physical_state_transitions = {
828 {
829 /* 2 3 4 5 6 7 8 9 10 11 */
830 /* 2 */ { __A, __A, __D, __D, __D, __D, __D, __D, __D, __D },
831 /* 3 */ { __A, __I, __D, __D, __D, __D, __D, __D, __D, __A },
832 /* 4 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
833 /* 5 */ { __A, __A, __D, __I, __D, __D, __D, __D, __D, __D },
834 /* 6 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
835 /* 7 */ { __D, __A, __D, __D, __D, __I, __D, __D, __D, __D },
836 /* 8 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
837 /* 9 */ { __I, __A, __D, __D, __D, __D, __D, __I, __D, __D },
838 /*10 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U },
839 /*11 */ { __D, __A, __D, __D, __D, __D, __D, __D, __D, __I },
840 }
841};
842
843/*
844 * IB_PORT_DOWN (1) through IB_PORT_ACTIVE_DEFER (5) are represented
845 * logical_state_transitions
846 */
847
848#define __N_LOGICAL_STATES (IB_PORT_ACTIVE_DEFER - IB_PORT_DOWN + 1)
849
850/*
851 * Within logical_state_transitions rows represent "old" states,
852 * columns "new" states, and logical_state_transitions.allowed[old][new]
853 * indicates if the transition from old state to new state is legal (see
854 * OPAg1v1, Table 9-12).
855 */
856static const struct {
857 u8 allowed[__N_LOGICAL_STATES][__N_LOGICAL_STATES];
858} logical_state_transitions = {
859 {
860 /* 1 2 3 4 5 */
861 /* 1 */ { __I, __D, __D, __D, __U},
862 /* 2 */ { __D, __I, __A, __D, __U},
863 /* 3 */ { __D, __D, __I, __A, __U},
864 /* 4 */ { __D, __D, __I, __I, __U},
865 /* 5 */ { __U, __U, __U, __U, __U},
866 }
867};
868
869static int logical_transition_allowed(int old, int new)
870{
871 if (old < IB_PORT_NOP || old > IB_PORT_ACTIVE_DEFER ||
872 new < IB_PORT_NOP || new > IB_PORT_ACTIVE_DEFER) {
873 pr_warn("invalid logical state(s) (old %d new %d)\n",
874 old, new);
875 return HFI_TRANSITION_UNDEFINED;
876 }
877
878 if (new == IB_PORT_NOP)
879 return HFI_TRANSITION_ALLOWED; /* always allowed */
880
881 /* adjust states for indexing into logical_state_transitions */
882 old -= IB_PORT_DOWN;
883 new -= IB_PORT_DOWN;
884
885 if (old < 0 || new < 0)
886 return HFI_TRANSITION_UNDEFINED;
887 return logical_state_transitions.allowed[old][new];
888}
889
890static int physical_transition_allowed(int old, int new)
891{
892 if (old < IB_PORTPHYSSTATE_NOP || old > OPA_PORTPHYSSTATE_MAX ||
893 new < IB_PORTPHYSSTATE_NOP || new > OPA_PORTPHYSSTATE_MAX) {
894 pr_warn("invalid physical state(s) (old %d new %d)\n",
895 old, new);
896 return HFI_TRANSITION_UNDEFINED;
897 }
898
899 if (new == IB_PORTPHYSSTATE_NOP)
900 return HFI_TRANSITION_ALLOWED; /* always allowed */
901
902 /* adjust states for indexing into physical_state_transitions */
903 old -= IB_PORTPHYSSTATE_POLLING;
904 new -= IB_PORTPHYSSTATE_POLLING;
905
906 if (old < 0 || new < 0)
907 return HFI_TRANSITION_UNDEFINED;
908 return physical_state_transitions.allowed[old][new];
909}
910
911static int port_states_transition_allowed(struct hfi1_pportdata *ppd,
912 u32 logical_new, u32 physical_new)
913{
914 u32 physical_old = driver_physical_state(ppd);
915 u32 logical_old = driver_logical_state(ppd);
916 int ret, logical_allowed, physical_allowed;
917
f3ff8189
JJ		 918 ret = logical_transition_allowed(logical_old, logical_new);
919 logical_allowed = ret;
77241056
MM		 920
921 if (ret == HFI_TRANSITION_DISALLOWED ||
922 ret == HFI_TRANSITION_UNDEFINED) {
923 pr_warn("invalid logical state transition %s -> %s\n",
924 opa_lstate_name(logical_old),
925 opa_lstate_name(logical_new));
926 return ret;
927 }
928
f3ff8189
JJ		 929 ret = physical_transition_allowed(physical_old, physical_new);
930 physical_allowed = ret;
77241056
MM		 931
932 if (ret == HFI_TRANSITION_DISALLOWED ||
933 ret == HFI_TRANSITION_UNDEFINED) {
934 pr_warn("invalid physical state transition %s -> %s\n",
935 opa_pstate_name(physical_old),
936 opa_pstate_name(physical_new));
937 return ret;
938 }
939
940 if (logical_allowed == HFI_TRANSITION_IGNORED &&
941 physical_allowed == HFI_TRANSITION_IGNORED)
942 return HFI_TRANSITION_IGNORED;
943
a9c05e35
BM		 944 /*
945 * A change request of Physical Port State from
946 * 'Offline' to 'Polling' should be ignored.
947 */
948 if ((physical_old == OPA_PORTPHYSSTATE_OFFLINE) &&
949 (physical_new == IB_PORTPHYSSTATE_POLLING))
950 return HFI_TRANSITION_IGNORED;
951
77241056
MM		 952 /*
953 * Either physical_allowed or logical_allowed is
954 * HFI_TRANSITION_ALLOWED.
955 */
956 return HFI_TRANSITION_ALLOWED;
957}
958
959static int set_port_states(struct hfi1_pportdata *ppd, struct opa_smp *smp,
960 u32 logical_state, u32 phys_state,
961 int suppress_idle_sma)
962{
963 struct hfi1_devdata *dd = ppd->dd;
964 u32 link_state;
965 int ret;
966
967 ret = port_states_transition_allowed(ppd, logical_state, phys_state);
968 if (ret == HFI_TRANSITION_DISALLOWED ||
969 ret == HFI_TRANSITION_UNDEFINED) {
970 /* error message emitted above */
971 smp->status |= IB_SMP_INVALID_FIELD;
972 return 0;
973 }
974
975 if (ret == HFI_TRANSITION_IGNORED)
976 return 0;
977
978 if ((phys_state != IB_PORTPHYSSTATE_NOP) &&
979 !(logical_state == IB_PORT_DOWN ||
980 logical_state == IB_PORT_NOP)){
981 pr_warn("SubnSet(OPA_PortInfo) port state invalid: logical_state 0x%x physical_state 0x%x\n",
982 logical_state, phys_state);
983 smp->status |= IB_SMP_INVALID_FIELD;
984 }
985
986 /*
987 * Logical state changes are summarized in OPAv1g1 spec.,
988 * Table 9-12; physical state changes are summarized in
989 * OPAv1g1 spec., Table 6.4.
990 */
991 switch (logical_state) {
992 case IB_PORT_NOP:
993 if (phys_state == IB_PORTPHYSSTATE_NOP)
994 break;
995 /* FALLTHROUGH */
996 case IB_PORT_DOWN:
e490974e 997 if (phys_state == IB_PORTPHYSSTATE_NOP) {
77241056 998 link_state = HLS_DN_DOWNDEF;
e490974e 999 } else if (phys_state == IB_PORTPHYSSTATE_POLLING) {
77241056 1000 link_state = HLS_DN_POLL;
17fb4f29
JJ		 1001 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_FM_BOUNCE,
1002 0, OPA_LINKDOWN_REASON_FM_BOUNCE);
e490974e 1003 } else if (phys_state == IB_PORTPHYSSTATE_DISABLED) {
77241056 1004 link_state = HLS_DN_DISABLE;
e490974e 1005 } else {
77241056
MM		 1006 pr_warn("SubnSet(OPA_PortInfo) invalid physical state 0x%x\n",
1007 phys_state);
1008 smp->status |= IB_SMP_INVALID_FIELD;
1009 break;
1010 }
1011
1cbaa670
DL		 1012 if ((link_state == HLS_DN_POLL ||
1013 link_state == HLS_DN_DOWNDEF)) {
1014 /*
1015 * Going to poll. No matter what the current state,
1016 * always move offline first, then tune and start the
1017 * link. This correctly handles a FM link bounce and
1018 * a link enable. Going offline is a no-op if already
1019 * offline.
1020 */
1021 set_link_state(ppd, HLS_DN_OFFLINE);
1022 tune_serdes(ppd);
1023 start_link(ppd);
1024 } else {
1025 set_link_state(ppd, link_state);
1026 }
77241056
MM		 1027 if (link_state == HLS_DN_DISABLE &&
1028 (ppd->offline_disabled_reason >
a9c05e35 1029 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED) ||
77241056 1030 ppd->offline_disabled_reason ==
a9c05e35 1031 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE)))
77241056 1032 ppd->offline_disabled_reason =
a9c05e35 1033 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED);
77241056
MM		 1034 /*
1035 * Don't send a reply if the response would be sent
1036 * through the disabled port.
1037 */
1038 if (link_state == HLS_DN_DISABLE && smp->hop_cnt)
1039 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
1040 break;
1041 case IB_PORT_ARMED:
1042 ret = set_link_state(ppd, HLS_UP_ARMED);
1043 if ((ret == 0) && (suppress_idle_sma == 0))
1044 send_idle_sma(dd, SMA_IDLE_ARM);
1045 break;
1046 case IB_PORT_ACTIVE:
1047 if (ppd->neighbor_normal) {
1048 ret = set_link_state(ppd, HLS_UP_ACTIVE);
1049 if (ret == 0)
1050 send_idle_sma(dd, SMA_IDLE_ACTIVE);
1051 } else {
1052 pr_warn("SubnSet(OPA_PortInfo) Cannot move to Active with NeighborNormal 0\n");
1053 smp->status |= IB_SMP_INVALID_FIELD;
1054 }
1055 break;
1056 default:
1057 pr_warn("SubnSet(OPA_PortInfo) invalid logical state 0x%x\n",
1058 logical_state);
1059 smp->status |= IB_SMP_INVALID_FIELD;
1060 }
1061
1062 return 0;
1063}
1064
1065/**
1066 * subn_set_opa_portinfo - set port information
1067 * @smp: the incoming SM packet
1068 * @ibdev: the infiniband device
1069 * @port: the port on the device
1070 *
1071 */
1072static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data,
1073 struct ib_device *ibdev, u8 port,
1074 u32 *resp_len)
1075{
1076 struct opa_port_info *pi = (struct opa_port_info *)data;
1077 struct ib_event event;
1078 struct hfi1_devdata *dd;
1079 struct hfi1_pportdata *ppd;
1080 struct hfi1_ibport *ibp;
1081 u8 clientrereg;
1082 unsigned long flags;
1083 u32 smlid, opa_lid; /* tmp vars to hold LID values */
1084 u16 lid;
1085 u8 ls_old, ls_new, ps_new;
1086 u8 vls;
1087 u8 msl;
1088 u8 crc_enabled;
1089 u16 lse, lwe, mtu;
1090 u32 num_ports = OPA_AM_NPORT(am);
1091 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
1092 int ret, i, invalid = 0, call_set_mtu = 0;
1093 int call_link_downgrade_policy = 0;
1094
1095 if (num_ports != 1) {
1096 smp->status |= IB_SMP_INVALID_FIELD;
1097 return reply((struct ib_mad_hdr *)smp);
1098 }
1099
1100 opa_lid = be32_to_cpu(pi->lid);
1101 if (opa_lid & 0xFFFF0000) {
1102 pr_warn("OPA_PortInfo lid out of range: %X\n", opa_lid);
1103 smp->status |= IB_SMP_INVALID_FIELD;
1104 goto get_only;
1105 }
1106
1107 lid = (u16)(opa_lid & 0x0000FFFF);
1108
1109 smlid = be32_to_cpu(pi->sm_lid);
1110 if (smlid & 0xFFFF0000) {
1111 pr_warn("OPA_PortInfo SM lid out of range: %X\n", smlid);
1112 smp->status |= IB_SMP_INVALID_FIELD;
1113 goto get_only;
1114 }
1115 smlid &= 0x0000FFFF;
1116
1117 clientrereg = (pi->clientrereg_subnettimeout &
1118 OPA_PI_MASK_CLIENT_REREGISTER);
1119
1120 dd = dd_from_ibdev(ibdev);
1121 /* IB numbers ports from 1, hw from 0 */
1122 ppd = dd->pport + (port - 1);
1123 ibp = &ppd->ibport_data;
1124 event.device = ibdev;
1125 event.element.port_num = port;
1126
1127 ls_old = driver_lstate(ppd);
1128
4eb06882
DD		 1129 ibp->rvp.mkey = pi->mkey;
1130 ibp->rvp.gid_prefix = pi->subnet_prefix;
1131 ibp->rvp.mkey_lease_period = be16_to_cpu(pi->mkey_lease_period);
77241056
MM		 1132
1133 /* Must be a valid unicast LID address. */
1134 if ((lid == 0 && ls_old > IB_PORT_INIT) ||
17fb4f29 1135 lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) {
77241056
MM		 1136 smp->status |= IB_SMP_INVALID_FIELD;
1137 pr_warn("SubnSet(OPA_PortInfo) lid invalid 0x%x\n",
1138 lid);
1139 } else if (ppd->lid != lid ||
1140 ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC)) {
1141 if (ppd->lid != lid)
1142 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LID_CHANGE_BIT);
1143 if (ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC))
1144 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LMC_CHANGE_BIT);
1145 hfi1_set_lid(ppd, lid, pi->mkeyprotect_lmc & OPA_PI_MASK_LMC);
1146 event.event = IB_EVENT_LID_CHANGE;
1147 ib_dispatch_event(&event);
1148 }
1149
1150 msl = pi->smsl & OPA_PI_MASK_SMSL;
1151 if (pi->partenforce_filterraw & OPA_PI_MASK_LINKINIT_REASON)
1152 ppd->linkinit_reason =
1153 (pi->partenforce_filterraw &
1154 OPA_PI_MASK_LINKINIT_REASON);
1155 /* enable/disable SW pkey checking as per FM control */
1156 if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_IN)
1157 ppd->part_enforce |= HFI1_PART_ENFORCE_IN;
1158 else
1159 ppd->part_enforce &= ~HFI1_PART_ENFORCE_IN;
1160
1161 if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_OUT)
1162 ppd->part_enforce |= HFI1_PART_ENFORCE_OUT;
1163 else
1164 ppd->part_enforce &= ~HFI1_PART_ENFORCE_OUT;
1165
1166 /* Must be a valid unicast LID address. */
1167 if ((smlid == 0 && ls_old > IB_PORT_INIT) ||
17fb4f29 1168 smlid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) {
77241056
MM		 1169 smp->status |= IB_SMP_INVALID_FIELD;
1170 pr_warn("SubnSet(OPA_PortInfo) smlid invalid 0x%x\n", smlid);
4eb06882 1171 } else if (smlid != ibp->rvp.sm_lid || msl != ibp->rvp.sm_sl) {
77241056 1172 pr_warn("SubnSet(OPA_PortInfo) smlid 0x%x\n", smlid);
4eb06882 1173 spin_lock_irqsave(&ibp->rvp.lock, flags);
9c4a311e 1174 if (ibp->rvp.sm_ah) {
4eb06882 1175 if (smlid != ibp->rvp.sm_lid)
9c4a311e 1176 ibp->rvp.sm_ah->attr.dlid = smlid;
4eb06882 1177 if (msl != ibp->rvp.sm_sl)
9c4a311e 1178 ibp->rvp.sm_ah->attr.sl = msl;
77241056 1179 }
4eb06882
DD		 1180 spin_unlock_irqrestore(&ibp->rvp.lock, flags);
1181 if (smlid != ibp->rvp.sm_lid)
1182 ibp->rvp.sm_lid = smlid;
1183 if (msl != ibp->rvp.sm_sl)
1184 ibp->rvp.sm_sl = msl;
77241056
MM		 1185 event.event = IB_EVENT_SM_CHANGE;
1186 ib_dispatch_event(&event);
1187 }
1188
1189 if (pi->link_down_reason == 0) {
1190 ppd->local_link_down_reason.sma = 0;
1191 ppd->local_link_down_reason.latest = 0;
1192 }
1193
1194 if (pi->neigh_link_down_reason == 0) {
1195 ppd->neigh_link_down_reason.sma = 0;
1196 ppd->neigh_link_down_reason.latest = 0;
1197 }
1198
1199 ppd->sm_trap_qp = be32_to_cpu(pi->sm_trap_qp);
1200 ppd->sa_qp = be32_to_cpu(pi->sa_qp);
1201
1202 ppd->port_error_action = be32_to_cpu(pi->port_error_action);
1203 lwe = be16_to_cpu(pi->link_width.enabled);
1204 if (lwe) {
d0d236ea
JJ		 1205 if (lwe == OPA_LINK_WIDTH_RESET ||
1206 lwe == OPA_LINK_WIDTH_RESET_OLD)
77241056
MM		 1207 set_link_width_enabled(ppd, ppd->link_width_supported);
1208 else if ((lwe & ~ppd->link_width_supported) == 0)
1209 set_link_width_enabled(ppd, lwe);
1210 else
1211 smp->status |= IB_SMP_INVALID_FIELD;
1212 }
1213 lwe = be16_to_cpu(pi->link_width_downgrade.enabled);
1214 /* LWD.E is always applied - 0 means "disabled" */
d0d236ea
JJ		 1215 if (lwe == OPA_LINK_WIDTH_RESET ||
1216 lwe == OPA_LINK_WIDTH_RESET_OLD) {
77241056 1217 set_link_width_downgrade_enabled(ppd,
17fb4f29
JJ		 1218 ppd->
1219 link_width_downgrade_supported
1220 );
77241056
MM		 1221 } else if ((lwe & ~ppd->link_width_downgrade_supported) == 0) {
1222 /* only set and apply if something changed */
1223 if (lwe != ppd->link_width_downgrade_enabled) {
1224 set_link_width_downgrade_enabled(ppd, lwe);
1225 call_link_downgrade_policy = 1;
1226 }
e490974e 1227 } else {
77241056 1228 smp->status |= IB_SMP_INVALID_FIELD;
e490974e 1229 }
77241056
MM		 1230 lse = be16_to_cpu(pi->link_speed.enabled);
1231 if (lse) {
1232 if (lse & be16_to_cpu(pi->link_speed.supported))
1233 set_link_speed_enabled(ppd, lse);
1234 else
1235 smp->status |= IB_SMP_INVALID_FIELD;
1236 }
1237
4eb06882
DD		 1238 ibp->rvp.mkeyprot =
1239 (pi->mkeyprotect_lmc & OPA_PI_MASK_MKEY_PROT_BIT) >> 6;
1240 ibp->rvp.vl_high_limit = be16_to_cpu(pi->vl.high_limit) & 0xFF;
77241056 1241 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_LIMIT,
4eb06882 1242 ibp->rvp.vl_high_limit);
77241056 1243
8638b77f 1244 if (ppd->vls_supported / 2 > ARRAY_SIZE(pi->neigh_mtu.pvlx_to_mtu) ||
17fb4f29 1245 ppd->vls_supported > ARRAY_SIZE(dd->vld)) {
77241056
MM		 1246 smp->status |= IB_SMP_INVALID_FIELD;
1247 return reply((struct ib_mad_hdr *)smp);
1248 }
1249 for (i = 0; i < ppd->vls_supported; i++) {
1250 if ((i % 2) == 0)
17fb4f29
JJ		 1251 mtu = enum_to_mtu((pi->neigh_mtu.pvlx_to_mtu[i / 2] >>
1252 4) & 0xF);
77241056 1253 else
17fb4f29
JJ		 1254 mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[i / 2] &
1255 0xF);
77241056
MM		 1256 if (mtu == 0xffff) {
1257 pr_warn("SubnSet(OPA_PortInfo) mtu invalid %d (0x%x)\n",
1258 mtu,
1259 (pi->neigh_mtu.pvlx_to_mtu[0] >> 4) & 0xF);
1260 smp->status |= IB_SMP_INVALID_FIELD;
1261 mtu = hfi1_max_mtu; /* use a valid MTU */
1262 }
1263 if (dd->vld[i].mtu != mtu) {
1264 dd_dev_info(dd,
17fb4f29
JJ		 1265 "MTU change on vl %d from %d to %d\n",
1266 i, dd->vld[i].mtu, mtu);
77241056
MM		 1267 dd->vld[i].mtu = mtu;
1268 call_set_mtu++;
1269 }
1270 }
1271 /* As per OPAV1 spec: VL15 must support and be configured
1272 * for operation with a 2048 or larger MTU.
1273 */
8638b77f 1274 mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[15 / 2] & 0xF);
77241056
MM		 1275 if (mtu < 2048 || mtu == 0xffff)
1276 mtu = 2048;
1277 if (dd->vld[15].mtu != mtu) {
1278 dd_dev_info(dd,
17fb4f29
JJ		 1279 "MTU change on vl 15 from %d to %d\n",
1280 dd->vld[15].mtu, mtu);
77241056
MM		 1281 dd->vld[15].mtu = mtu;
1282 call_set_mtu++;
1283 }
1284 if (call_set_mtu)
1285 set_mtu(ppd);
1286
1287 /* Set operational VLs */
1288 vls = pi->operational_vls & OPA_PI_MASK_OPERATIONAL_VL;
1289 if (vls) {
1290 if (vls > ppd->vls_supported) {
1291 pr_warn("SubnSet(OPA_PortInfo) VL's supported invalid %d\n",
1292 pi->operational_vls);
1293 smp->status |= IB_SMP_INVALID_FIELD;
1294 } else {
1295 if (hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS,
17fb4f29 1296 vls) == -EINVAL)
77241056
MM		 1297 smp->status |= IB_SMP_INVALID_FIELD;
1298 }
1299 }
1300
1301 if (pi->mkey_violations == 0)
4eb06882 1302 ibp->rvp.mkey_violations = 0;
77241056
MM		 1303
1304 if (pi->pkey_violations == 0)
4eb06882 1305 ibp->rvp.pkey_violations = 0;
77241056
MM		 1306
1307 if (pi->qkey_violations == 0)
4eb06882 1308 ibp->rvp.qkey_violations = 0;
77241056 1309
4eb06882 1310 ibp->rvp.subnet_timeout =
77241056
MM		 1311 pi->clientrereg_subnettimeout & OPA_PI_MASK_SUBNET_TIMEOUT;
1312
1313 crc_enabled = be16_to_cpu(pi->port_ltp_crc_mode);
1314 crc_enabled >>= 4;
1315 crc_enabled &= 0xf;
1316
1317 if (crc_enabled != 0)
1318 ppd->port_crc_mode_enabled = port_ltp_to_cap(crc_enabled);
1319
1320 ppd->is_active_optimize_enabled =
1321 !!(be16_to_cpu(pi->port_mode)
1322 & OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE);
1323
1324 ls_new = pi->port_states.portphysstate_portstate &
1325 OPA_PI_MASK_PORT_STATE;
1326 ps_new = (pi->port_states.portphysstate_portstate &
1327 OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4;
1328
1329 if (ls_old == IB_PORT_INIT) {
1330 if (start_of_sm_config) {
1331 if (ls_new == ls_old || (ls_new == IB_PORT_ARMED))
1332 ppd->is_sm_config_started = 1;
1333 } else if (ls_new == IB_PORT_ARMED) {
1334 if (ppd->is_sm_config_started == 0)
1335 invalid = 1;
1336 }
1337 }
1338
1339 /* Handle CLIENT_REREGISTER event b/c SM asked us for it */
1340 if (clientrereg) {
1341 event.event = IB_EVENT_CLIENT_REREGISTER;
1342 ib_dispatch_event(&event);
1343 }
1344
1345 /*
1346 * Do the port state change now that the other link parameters
1347 * have been set.
1348 * Changing the port physical state only makes sense if the link
1349 * is down or is being set to down.
1350 */
1351
1352 ret = set_port_states(ppd, smp, ls_new, ps_new, invalid);
1353 if (ret)
1354 return ret;
1355
1356 ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len);
1357
1358 /* restore re-reg bit per o14-12.2.1 */
1359 pi->clientrereg_subnettimeout |= clientrereg;
1360
1361 /*
1362 * Apply the new link downgrade policy. This may result in a link
1363 * bounce. Do this after everything else so things are settled.
1364 * Possible problem: if setting the port state above fails, then
1365 * the policy change is not applied.
1366 */
1367 if (call_link_downgrade_policy)
1368 apply_link_downgrade_policy(ppd, 0);
1369
1370 return ret;
1371
1372get_only:
1373 return __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len);
1374}
1375
1376/**
1377 * set_pkeys - set the PKEY table for ctxt 0
1378 * @dd: the hfi1_ib device
1379 * @port: the IB port number
1380 * @pkeys: the PKEY table
1381 */
1382static int set_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys)
1383{
1384 struct hfi1_pportdata *ppd;
1385 int i;
1386 int changed = 0;
1387 int update_includes_mgmt_partition = 0;
1388
1389 /*
1390 * IB port one/two always maps to context zero/one,
1391 * always a kernel context, no locking needed
1392 * If we get here with ppd setup, no need to check
1393 * that rcd is valid.
1394 */
1395 ppd = dd->pport + (port - 1);
1396 /*
1397 * If the update does not include the management pkey, don't do it.
1398 */
1399 for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) {
1400 if (pkeys[i] == LIM_MGMT_P_KEY) {
1401 update_includes_mgmt_partition = 1;
1402 break;
1403 }
1404 }
1405
1406 if (!update_includes_mgmt_partition)
1407 return 1;
1408
1409 for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) {
1410 u16 key = pkeys[i];
1411 u16 okey = ppd->pkeys[i];
1412
1413 if (key == okey)
1414 continue;
ce8b2fd0
SS		 1415 /*
1416 * Don't update pkeys[2], if an HFI port without MgmtAllowed
1417 * by neighbor is a switch.
1418 */
1419 if (i == 2 && !ppd->mgmt_allowed && ppd->neighbor_type == 1)
1420 continue;
77241056
MM		 1421 /*
1422 * The SM gives us the complete PKey table. We have
1423 * to ensure that we put the PKeys in the matching
1424 * slots.
1425 */
1426 ppd->pkeys[i] = key;
1427 changed = 1;
1428 }
1429
1430 if (changed) {
77241056 1431 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0);
34d351f8 1432 hfi1_event_pkey_change(dd, port);
77241056 1433 }
34d351f8 1434
77241056
MM		 1435 return 0;
1436}
1437
1438static int __subn_set_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data,
1439 struct ib_device *ibdev, u8 port,
1440 u32 *resp_len)
1441{
1442 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1443 u32 n_blocks_sent = OPA_AM_NBLK(am);
1444 u32 start_block = am & 0x7ff;
50e5dcbe 1445 u16 *p = (u16 *)data;
77241056
MM		 1446 __be16 *q = (__be16 *)data;
1447 int i;
1448 u16 n_blocks_avail;
1449 unsigned npkeys = hfi1_get_npkeys(dd);
1450
1451 if (n_blocks_sent == 0) {
1452 pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n",
1453 port, start_block, n_blocks_sent);
1454 smp->status |= IB_SMP_INVALID_FIELD;
1455 return reply((struct ib_mad_hdr *)smp);
1456 }
1457
8638b77f 1458 n_blocks_avail = (u16)(npkeys / OPA_PARTITION_TABLE_BLK_SIZE) + 1;
77241056
MM		 1459
1460 if (start_block + n_blocks_sent > n_blocks_avail ||
1461 n_blocks_sent > OPA_NUM_PKEY_BLOCKS_PER_SMP) {
1462 pr_warn("OPA Set PKey AM Invalid : s 0x%x; req 0x%x; avail 0x%x; blk/smp 0x%lx\n",
1463 start_block, n_blocks_sent, n_blocks_avail,
1464 OPA_NUM_PKEY_BLOCKS_PER_SMP);
1465 smp->status |= IB_SMP_INVALID_FIELD;
1466 return reply((struct ib_mad_hdr *)smp);
1467 }
1468
1469 for (i = 0; i < n_blocks_sent * OPA_PARTITION_TABLE_BLK_SIZE; i++)
1470 p[i] = be16_to_cpu(q[i]);
1471
1472 if (start_block == 0 && set_pkeys(dd, port, p) != 0) {
1473 smp->status |= IB_SMP_INVALID_FIELD;
1474 return reply((struct ib_mad_hdr *)smp);
1475 }
1476
1477 return __subn_get_opa_pkeytable(smp, am, data, ibdev, port, resp_len);
1478}
1479
1480static int get_sc2vlt_tables(struct hfi1_devdata *dd, void *data)
1481{
a787bde8 1482 u64 *val = data;
77241056
MM		 1483
1484 *val++ = read_csr(dd, SEND_SC2VLT0);
1485 *val++ = read_csr(dd, SEND_SC2VLT1);
1486 *val++ = read_csr(dd, SEND_SC2VLT2);
1487 *val++ = read_csr(dd, SEND_SC2VLT3);
1488 return 0;
1489}
1490
1491#define ILLEGAL_VL 12
1492/*
1493 * filter_sc2vlt changes mappings to VL15 to ILLEGAL_VL (except
1494 * for SC15, which must map to VL15). If we don't remap things this
1495 * way it is possible for VL15 counters to increment when we try to
1496 * send on a SC which is mapped to an invalid VL.
1497 */
1498static void filter_sc2vlt(void *data)
1499{
1500 int i;
a787bde8 1501 u8 *pd = data;
77241056
MM		 1502
1503 for (i = 0; i < OPA_MAX_SCS; i++) {
1504 if (i == 15)
1505 continue;
1506 if ((pd[i] & 0x1f) == 0xf)
1507 pd[i] = ILLEGAL_VL;
1508 }
1509}
1510
1511static int set_sc2vlt_tables(struct hfi1_devdata *dd, void *data)
1512{
a787bde8 1513 u64 *val = data;
77241056
MM		 1514
1515 filter_sc2vlt(data);
1516
1517 write_csr(dd, SEND_SC2VLT0, *val++);
1518 write_csr(dd, SEND_SC2VLT1, *val++);
1519 write_csr(dd, SEND_SC2VLT2, *val++);
1520 write_csr(dd, SEND_SC2VLT3, *val++);
1521 write_seqlock_irq(&dd->sc2vl_lock);
a787bde8 1522 memcpy(dd->sc2vl, data, sizeof(dd->sc2vl));
77241056
MM		 1523 write_sequnlock_irq(&dd->sc2vl_lock);
1524 return 0;
1525}
1526
1527static int __subn_get_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data,
1528 struct ib_device *ibdev, u8 port,
1529 u32 *resp_len)
1530{
1531 struct hfi1_ibport *ibp = to_iport(ibdev, port);
6618c051 1532 u8 *p = data;
77241056
MM		 1533 size_t size = ARRAY_SIZE(ibp->sl_to_sc); /* == 32 */
1534 unsigned i;
1535
1536 if (am) {
1537 smp->status |= IB_SMP_INVALID_FIELD;
1538 return reply((struct ib_mad_hdr *)smp);
1539 }
1540
1541 for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++)
1542 *p++ = ibp->sl_to_sc[i];
1543
1544 if (resp_len)
1545 *resp_len += size;
1546
1547 return reply((struct ib_mad_hdr *)smp);
1548}
1549
1550static int __subn_set_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data,
1551 struct ib_device *ibdev, u8 port,
1552 u32 *resp_len)
1553{
1554 struct hfi1_ibport *ibp = to_iport(ibdev, port);
6618c051 1555 u8 *p = data;
77241056 1556 int i;
0ec79e87 1557 u8 sc;
77241056
MM		 1558
1559 if (am) {
1560 smp->status |= IB_SMP_INVALID_FIELD;
1561 return reply((struct ib_mad_hdr *)smp);
1562 }
1563
0ec79e87
KW		 1564 for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++) {
1565 sc = *p++;
1566 if (ibp->sl_to_sc[i] != sc) {
1567 ibp->sl_to_sc[i] = sc;
1568
1569 /* Put all stale qps into error state */
1570 hfi1_error_port_qps(ibp, i);
1571 }
1572 }
77241056
MM		 1573
1574 return __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port, resp_len);
1575}
1576
1577static int __subn_get_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data,
1578 struct ib_device *ibdev, u8 port,
1579 u32 *resp_len)
1580{
1581 struct hfi1_ibport *ibp = to_iport(ibdev, port);
6618c051 1582 u8 *p = data;
77241056
MM		 1583 size_t size = ARRAY_SIZE(ibp->sc_to_sl); /* == 32 */
1584 unsigned i;
1585
1586 if (am) {
1587 smp->status |= IB_SMP_INVALID_FIELD;
1588 return reply((struct ib_mad_hdr *)smp);
1589 }
1590
1591 for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++)
1592 *p++ = ibp->sc_to_sl[i];
1593
1594 if (resp_len)
1595 *resp_len += size;
1596
1597 return reply((struct ib_mad_hdr *)smp);
1598}
1599
1600static int __subn_set_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data,
1601 struct ib_device *ibdev, u8 port,
1602 u32 *resp_len)
1603{
1604 struct hfi1_ibport *ibp = to_iport(ibdev, port);
6618c051 1605 u8 *p = data;
77241056
MM		 1606 int i;
1607
1608 if (am) {
1609 smp->status |= IB_SMP_INVALID_FIELD;
1610 return reply((struct ib_mad_hdr *)smp);
1611 }
1612
1613 for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++)
1614 ibp->sc_to_sl[i] = *p++;
1615
1616 return __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port, resp_len);
1617}
1618
1619static int __subn_get_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data,
1620 struct ib_device *ibdev, u8 port,
1621 u32 *resp_len)
1622{
1623 u32 n_blocks = OPA_AM_NBLK(am);
1624 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
50e5dcbe 1625 void *vp = (void *)data;
77241056
MM		 1626 size_t size = 4 * sizeof(u64);
1627
1628 if (n_blocks != 1) {
1629 smp->status |= IB_SMP_INVALID_FIELD;
1630 return reply((struct ib_mad_hdr *)smp);
1631 }
1632
1633 get_sc2vlt_tables(dd, vp);
1634
1635 if (resp_len)
1636 *resp_len += size;
1637
1638 return reply((struct ib_mad_hdr *)smp);
1639}
1640
1641static int __subn_set_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data,
1642 struct ib_device *ibdev, u8 port,
1643 u32 *resp_len)
1644{
1645 u32 n_blocks = OPA_AM_NBLK(am);
1646 int async_update = OPA_AM_ASYNC(am);
1647 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
50e5dcbe 1648 void *vp = (void *)data;
77241056
MM		 1649 struct hfi1_pportdata *ppd;
1650 int lstate;
1651
1652 if (n_blocks != 1 || async_update) {
1653 smp->status |= IB_SMP_INVALID_FIELD;
1654 return reply((struct ib_mad_hdr *)smp);
1655 }
1656
1657 /* IB numbers ports from 1, hw from 0 */
1658 ppd = dd->pport + (port - 1);
1659 lstate = driver_lstate(ppd);
4d114fdd
JJ		 1660 /*
1661 * it's known that async_update is 0 by this point, but include
1662 * the explicit check for clarity
1663 */
77241056
MM		 1664 if (!async_update &&
1665 (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE)) {
1666 smp->status |= IB_SMP_INVALID_FIELD;
1667 return reply((struct ib_mad_hdr *)smp);
1668 }
1669
1670 set_sc2vlt_tables(dd, vp);
1671
1672 return __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port, resp_len);
1673}
1674
1675static int __subn_get_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data,
1676 struct ib_device *ibdev, u8 port,
1677 u32 *resp_len)
1678{
1679 u32 n_blocks = OPA_AM_NPORT(am);
1680 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1681 struct hfi1_pportdata *ppd;
50e5dcbe 1682 void *vp = (void *)data;
77241056
MM		 1683 int size;
1684
1685 if (n_blocks != 1) {
1686 smp->status |= IB_SMP_INVALID_FIELD;
1687 return reply((struct ib_mad_hdr *)smp);
1688 }
1689
1690 ppd = dd->pport + (port - 1);
1691
1692 size = fm_get_table(ppd, FM_TBL_SC2VLNT, vp);
1693
1694 if (resp_len)
1695 *resp_len += size;
1696
1697 return reply((struct ib_mad_hdr *)smp);
1698}
1699
1700static int __subn_set_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data,
1701 struct ib_device *ibdev, u8 port,
1702 u32 *resp_len)
1703{
1704 u32 n_blocks = OPA_AM_NPORT(am);
1705 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1706 struct hfi1_pportdata *ppd;
50e5dcbe 1707 void *vp = (void *)data;
77241056
MM		 1708 int lstate;
1709
1710 if (n_blocks != 1) {
1711 smp->status |= IB_SMP_INVALID_FIELD;
1712 return reply((struct ib_mad_hdr *)smp);
1713 }
1714
1715 /* IB numbers ports from 1, hw from 0 */
1716 ppd = dd->pport + (port - 1);
1717 lstate = driver_lstate(ppd);
1718 if (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE) {
1719 smp->status |= IB_SMP_INVALID_FIELD;
1720 return reply((struct ib_mad_hdr *)smp);
1721 }
1722
1723 ppd = dd->pport + (port - 1);
1724
1725 fm_set_table(ppd, FM_TBL_SC2VLNT, vp);
1726
1727 return __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port,
1728 resp_len);
1729}
1730
1731static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
1732 struct ib_device *ibdev, u8 port,
1733 u32 *resp_len)
1734{
1735 u32 nports = OPA_AM_NPORT(am);
1736 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
1737 u32 lstate;
1738 struct hfi1_ibport *ibp;
1739 struct hfi1_pportdata *ppd;
50e5dcbe 1740 struct opa_port_state_info *psi = (struct opa_port_state_info *)data;
77241056
MM		 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 lstate = driver_lstate(ppd);
1751
1752 if (start_of_sm_config && (lstate == IB_PORT_INIT))
1753 ppd->is_sm_config_started = 1;
1754
1755#if PI_LED_ENABLE_SUP
1756 psi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4;
1757 psi->port_states.ledenable_offlinereason |=
1758 ppd->is_sm_config_started << 5;
1759 psi->port_states.ledenable_offlinereason |=
a9c05e35 1760 ppd->offline_disabled_reason;
77241056
MM		 1761#else
1762 psi->port_states.offline_reason = ppd->neighbor_normal << 4;
1763 psi->port_states.offline_reason |= ppd->is_sm_config_started << 5;
a9c05e35 1764 psi->port_states.offline_reason |= ppd->offline_disabled_reason;
77241056
MM		 1765#endif /* PI_LED_ENABLE_SUP */
1766
1767 psi->port_states.portphysstate_portstate =
1768 (hfi1_ibphys_portstate(ppd) << 4) | (lstate & 0xf);
1769 psi->link_width_downgrade_tx_active =
aadfc3b2 1770 cpu_to_be16(ppd->link_width_downgrade_tx_active);
77241056 1771 psi->link_width_downgrade_rx_active =
aadfc3b2 1772 cpu_to_be16(ppd->link_width_downgrade_rx_active);
77241056
MM		 1773 if (resp_len)
1774 *resp_len += sizeof(struct opa_port_state_info);
1775
1776 return reply((struct ib_mad_hdr *)smp);
1777}
1778
1779static int __subn_set_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
1780 struct ib_device *ibdev, u8 port,
1781 u32 *resp_len)
1782{
1783 u32 nports = OPA_AM_NPORT(am);
1784 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am);
1785 u32 ls_old;
1786 u8 ls_new, ps_new;
1787 struct hfi1_ibport *ibp;
1788 struct hfi1_pportdata *ppd;
50e5dcbe 1789 struct opa_port_state_info *psi = (struct opa_port_state_info *)data;
77241056
MM		 1790 int ret, invalid = 0;
1791
1792 if (nports != 1) {
1793 smp->status |= IB_SMP_INVALID_FIELD;
1794 return reply((struct ib_mad_hdr *)smp);
1795 }
1796
1797 ibp = to_iport(ibdev, port);
1798 ppd = ppd_from_ibp(ibp);
1799
1800 ls_old = driver_lstate(ppd);
1801
1802 ls_new = port_states_to_logical_state(&psi->port_states);
1803 ps_new = port_states_to_phys_state(&psi->port_states);
1804
1805 if (ls_old == IB_PORT_INIT) {
1806 if (start_of_sm_config) {
1807 if (ls_new == ls_old || (ls_new == IB_PORT_ARMED))
1808 ppd->is_sm_config_started = 1;
1809 } else if (ls_new == IB_PORT_ARMED) {
1810 if (ppd->is_sm_config_started == 0)
1811 invalid = 1;
1812 }
1813 }
1814
1815 ret = set_port_states(ppd, smp, ls_new, ps_new, invalid);
1816 if (ret)
1817 return ret;
1818
1819 if (invalid)
1820 smp->status |= IB_SMP_INVALID_FIELD;
1821
1822 return __subn_get_opa_psi(smp, am, data, ibdev, port, resp_len);
1823}
1824
1825static int __subn_get_opa_cable_info(struct opa_smp *smp, u32 am, u8 *data,
1826 struct ib_device *ibdev, u8 port,
1827 u32 *resp_len)
1828{
1829 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1830 u32 addr = OPA_AM_CI_ADDR(am);
1831 u32 len = OPA_AM_CI_LEN(am) + 1;
1832 int ret;
1833
349ac71f 1834#define __CI_PAGE_SIZE BIT(7) /* 128 bytes */
77241056
MM		 1835#define __CI_PAGE_MASK ~(__CI_PAGE_SIZE - 1)
1836#define __CI_PAGE_NUM(a) ((a) & __CI_PAGE_MASK)
1837
4d114fdd
JJ		 1838 /*
1839 * check that addr is within spec, and
1840 * addr and (addr + len - 1) are on the same "page"
1841 */
77241056 1842 if (addr >= 4096 ||
17fb4f29 1843 (__CI_PAGE_NUM(addr) != __CI_PAGE_NUM(addr + len - 1))) {
77241056
MM		 1844 smp->status |= IB_SMP_INVALID_FIELD;
1845 return reply((struct ib_mad_hdr *)smp);
1846 }
1847
1848 ret = get_cable_info(dd, port, addr, len, data);
1849
1850 if (ret == -ENODEV) {
1851 smp->status |= IB_SMP_UNSUP_METH_ATTR;
1852 return reply((struct ib_mad_hdr *)smp);
1853 }
1854
1855 /* The address range for the CableInfo SMA query is wider than the
1856 * memory available on the QSFP cable. We want to return a valid
1857 * response, albeit zeroed out, for address ranges beyond available
1858 * memory but that are within the CableInfo query spec
1859 */
1860 if (ret < 0 && ret != -ERANGE) {
1861 smp->status |= IB_SMP_INVALID_FIELD;
1862 return reply((struct ib_mad_hdr *)smp);
1863 }
1864
1865 if (resp_len)
1866 *resp_len += len;
1867
1868 return reply((struct ib_mad_hdr *)smp);
1869}
1870
1871static int __subn_get_opa_bct(struct opa_smp *smp, u32 am, u8 *data,
1872 struct ib_device *ibdev, u8 port, u32 *resp_len)
1873{
1874 u32 num_ports = OPA_AM_NPORT(am);
1875 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1876 struct hfi1_pportdata *ppd;
50e5dcbe 1877 struct buffer_control *p = (struct buffer_control *)data;
77241056
MM		 1878 int size;
1879
1880 if (num_ports != 1) {
1881 smp->status |= IB_SMP_INVALID_FIELD;
1882 return reply((struct ib_mad_hdr *)smp);
1883 }
1884
1885 ppd = dd->pport + (port - 1);
1886 size = fm_get_table(ppd, FM_TBL_BUFFER_CONTROL, p);
1887 trace_bct_get(dd, p);
1888 if (resp_len)
1889 *resp_len += size;
1890
1891 return reply((struct ib_mad_hdr *)smp);
1892}
1893
1894static int __subn_set_opa_bct(struct opa_smp *smp, u32 am, u8 *data,
1895 struct ib_device *ibdev, u8 port, u32 *resp_len)
1896{
1897 u32 num_ports = OPA_AM_NPORT(am);
1898 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
1899 struct hfi1_pportdata *ppd;
50e5dcbe 1900 struct buffer_control *p = (struct buffer_control *)data;
77241056
MM		 1901
1902 if (num_ports != 1) {
1903 smp->status |= IB_SMP_INVALID_FIELD;
1904 return reply((struct ib_mad_hdr *)smp);
1905 }
1906 ppd = dd->pport + (port - 1);
1907 trace_bct_set(dd, p);
1908 if (fm_set_table(ppd, FM_TBL_BUFFER_CONTROL, p) < 0) {
1909 smp->status |= IB_SMP_INVALID_FIELD;
1910 return reply((struct ib_mad_hdr *)smp);
1911 }
1912
1913 return __subn_get_opa_bct(smp, am, data, ibdev, port, resp_len);
1914}
1915
1916static int __subn_get_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data,
1917 struct ib_device *ibdev, u8 port,
1918 u32 *resp_len)
1919{
1920 struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port));
1921 u32 num_ports = OPA_AM_NPORT(am);
1922 u8 section = (am & 0x00ff0000) >> 16;
1923 u8 *p = data;
1924 int size = 0;
1925
1926 if (num_ports != 1) {
1927 smp->status |= IB_SMP_INVALID_FIELD;
1928 return reply((struct ib_mad_hdr *)smp);
1929 }
1930
1931 switch (section) {
1932 case OPA_VLARB_LOW_ELEMENTS:
1933 size = fm_get_table(ppd, FM_TBL_VL_LOW_ARB, p);
1934 break;
1935 case OPA_VLARB_HIGH_ELEMENTS:
1936 size = fm_get_table(ppd, FM_TBL_VL_HIGH_ARB, p);
1937 break;
1938 case OPA_VLARB_PREEMPT_ELEMENTS:
1939 size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_ELEMS, p);
1940 break;
1941 case OPA_VLARB_PREEMPT_MATRIX:
1942 size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_MATRIX, p);
1943 break;
1944 default:
1945 pr_warn("OPA SubnGet(VL Arb) AM Invalid : 0x%x\n",
1946 be32_to_cpu(smp->attr_mod));
1947 smp->status |= IB_SMP_INVALID_FIELD;
1948 break;
1949 }
1950
1951 if (size > 0 && resp_len)
1952 *resp_len += size;
1953
1954 return reply((struct ib_mad_hdr *)smp);
1955}
1956
1957static int __subn_set_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data,
1958 struct ib_device *ibdev, u8 port,
1959 u32 *resp_len)
1960{
1961 struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port));
1962 u32 num_ports = OPA_AM_NPORT(am);
1963 u8 section = (am & 0x00ff0000) >> 16;
1964 u8 *p = data;
1965
1966 if (num_ports != 1) {
1967 smp->status |= IB_SMP_INVALID_FIELD;
1968 return reply((struct ib_mad_hdr *)smp);
1969 }
1970
1971 switch (section) {
1972 case OPA_VLARB_LOW_ELEMENTS:
50e5dcbe 1973 (void)fm_set_table(ppd, FM_TBL_VL_LOW_ARB, p);
77241056
MM		 1974 break;
1975 case OPA_VLARB_HIGH_ELEMENTS:
50e5dcbe 1976 (void)fm_set_table(ppd, FM_TBL_VL_HIGH_ARB, p);
77241056 1977 break;
4d114fdd
JJ		 1978 /*
1979 * neither OPA_VLARB_PREEMPT_ELEMENTS, or OPA_VLARB_PREEMPT_MATRIX
1980 * can be changed from the default values
1981 */
77241056
MM		 1982 case OPA_VLARB_PREEMPT_ELEMENTS:
1983 /* FALLTHROUGH */
1984 case OPA_VLARB_PREEMPT_MATRIX:
1985 smp->status |= IB_SMP_UNSUP_METH_ATTR;
1986 break;
1987 default:
1988 pr_warn("OPA SubnSet(VL Arb) AM Invalid : 0x%x\n",
1989 be32_to_cpu(smp->attr_mod));
1990 smp->status |= IB_SMP_INVALID_FIELD;
1991 break;
1992 }
1993
1994 return __subn_get_opa_vl_arb(smp, am, data, ibdev, port, resp_len);
1995}
1996
1997struct opa_pma_mad {
1998 struct ib_mad_hdr mad_hdr;
1999 u8 data[2024];
2000} __packed;
2001
2002struct opa_class_port_info {
2003 u8 base_version;
2004 u8 class_version;
2005 __be16 cap_mask;
2006 __be32 cap_mask2_resp_time;
2007
2008 u8 redirect_gid[16];
2009 __be32 redirect_tc_fl;
2010 __be32 redirect_lid;
2011 __be32 redirect_sl_qp;
2012 __be32 redirect_qkey;
2013
2014 u8 trap_gid[16];
2015 __be32 trap_tc_fl;
2016 __be32 trap_lid;
2017 __be32 trap_hl_qp;
2018 __be32 trap_qkey;
2019
2020 __be16 trap_pkey;
2021 __be16 redirect_pkey;
2022
2023 u8 trap_sl_rsvd;
2024 u8 reserved[3];
2025} __packed;
2026
2027struct opa_port_status_req {
2028 __u8 port_num;
2029 __u8 reserved[3];
2030 __be32 vl_select_mask;
2031};
2032
2033#define VL_MASK_ALL 0x000080ff
2034
2035struct opa_port_status_rsp {
2036 __u8 port_num;
2037 __u8 reserved[3];
2038 __be32 vl_select_mask;
2039
2040 /* Data counters */
2041 __be64 port_xmit_data;
2042 __be64 port_rcv_data;
2043 __be64 port_xmit_pkts;
2044 __be64 port_rcv_pkts;
2045 __be64 port_multicast_xmit_pkts;
2046 __be64 port_multicast_rcv_pkts;
2047 __be64 port_xmit_wait;
2048 __be64 sw_port_congestion;
2049 __be64 port_rcv_fecn;
2050 __be64 port_rcv_becn;
2051 __be64 port_xmit_time_cong;
2052 __be64 port_xmit_wasted_bw;
2053 __be64 port_xmit_wait_data;
2054 __be64 port_rcv_bubble;
2055 __be64 port_mark_fecn;
2056 /* Error counters */
2057 __be64 port_rcv_constraint_errors;
2058 __be64 port_rcv_switch_relay_errors;
2059 __be64 port_xmit_discards;
2060 __be64 port_xmit_constraint_errors;
2061 __be64 port_rcv_remote_physical_errors;
2062 __be64 local_link_integrity_errors;
2063 __be64 port_rcv_errors;
2064 __be64 excessive_buffer_overruns;
2065 __be64 fm_config_errors;
2066 __be32 link_error_recovery;
2067 __be32 link_downed;
2068 u8 uncorrectable_errors;
2069
2070 u8 link_quality_indicator; /* 5res, 3bit */
2071 u8 res2[6];
2072 struct _vls_pctrs {
2073 /* per-VL Data counters */
2074 __be64 port_vl_xmit_data;
2075 __be64 port_vl_rcv_data;
2076 __be64 port_vl_xmit_pkts;
2077 __be64 port_vl_rcv_pkts;
2078 __be64 port_vl_xmit_wait;
2079 __be64 sw_port_vl_congestion;
2080 __be64 port_vl_rcv_fecn;
2081 __be64 port_vl_rcv_becn;
2082 __be64 port_xmit_time_cong;
2083 __be64 port_vl_xmit_wasted_bw;
2084 __be64 port_vl_xmit_wait_data;
2085 __be64 port_vl_rcv_bubble;
2086 __be64 port_vl_mark_fecn;
2087 __be64 port_vl_xmit_discards;
2088 } vls[0]; /* real array size defined by # bits set in vl_select_mask */
2089};
2090
2091enum counter_selects {
2092 CS_PORT_XMIT_DATA = (1 << 31),
2093 CS_PORT_RCV_DATA = (1 << 30),
2094 CS_PORT_XMIT_PKTS = (1 << 29),
2095 CS_PORT_RCV_PKTS = (1 << 28),
2096 CS_PORT_MCAST_XMIT_PKTS = (1 << 27),
2097 CS_PORT_MCAST_RCV_PKTS = (1 << 26),
2098 CS_PORT_XMIT_WAIT = (1 << 25),
2099 CS_SW_PORT_CONGESTION = (1 << 24),
2100 CS_PORT_RCV_FECN = (1 << 23),
2101 CS_PORT_RCV_BECN = (1 << 22),
2102 CS_PORT_XMIT_TIME_CONG = (1 << 21),
2103 CS_PORT_XMIT_WASTED_BW = (1 << 20),
2104 CS_PORT_XMIT_WAIT_DATA = (1 << 19),
2105 CS_PORT_RCV_BUBBLE = (1 << 18),
2106 CS_PORT_MARK_FECN = (1 << 17),
2107 CS_PORT_RCV_CONSTRAINT_ERRORS = (1 << 16),
2108 CS_PORT_RCV_SWITCH_RELAY_ERRORS = (1 << 15),
2109 CS_PORT_XMIT_DISCARDS = (1 << 14),
2110 CS_PORT_XMIT_CONSTRAINT_ERRORS = (1 << 13),
2111 CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS = (1 << 12),
2112 CS_LOCAL_LINK_INTEGRITY_ERRORS = (1 << 11),
2113 CS_PORT_RCV_ERRORS = (1 << 10),
2114 CS_EXCESSIVE_BUFFER_OVERRUNS = (1 << 9),
2115 CS_FM_CONFIG_ERRORS = (1 << 8),
2116 CS_LINK_ERROR_RECOVERY = (1 << 7),
2117 CS_LINK_DOWNED = (1 << 6),
2118 CS_UNCORRECTABLE_ERRORS = (1 << 5),
2119};
2120
2121struct opa_clear_port_status {
2122 __be64 port_select_mask[4];
2123 __be32 counter_select_mask;
2124};
2125
2126struct opa_aggregate {
2127 __be16 attr_id;
2128 __be16 err_reqlength; /* 1 bit, 8 res, 7 bit */
2129 __be32 attr_mod;
2130 u8 data[0];
2131};
2132
f0852922
AL		 2133#define MSK_LLI 0x000000f0
2134#define MSK_LLI_SFT 4
2135#define MSK_LER 0x0000000f
2136#define MSK_LER_SFT 0
2137#define ADD_LLI 8
2138#define ADD_LER 2
2139
2140/* Request contains first three fields, response contains those plus the rest */
77241056
MM		 2141struct opa_port_data_counters_msg {
2142 __be64 port_select_mask[4];
2143 __be32 vl_select_mask;
f0852922 2144 __be32 resolution;
77241056
MM		 2145
2146 /* Response fields follow */
77241056
MM		 2147 struct _port_dctrs {
2148 u8 port_number;
2149 u8 reserved2[3];
2150 __be32 link_quality_indicator; /* 29res, 3bit */
2151
2152 /* Data counters */
2153 __be64 port_xmit_data;
2154 __be64 port_rcv_data;
2155 __be64 port_xmit_pkts;
2156 __be64 port_rcv_pkts;
2157 __be64 port_multicast_xmit_pkts;
2158 __be64 port_multicast_rcv_pkts;
2159 __be64 port_xmit_wait;
2160 __be64 sw_port_congestion;
2161 __be64 port_rcv_fecn;
2162 __be64 port_rcv_becn;
2163 __be64 port_xmit_time_cong;
2164 __be64 port_xmit_wasted_bw;
2165 __be64 port_xmit_wait_data;
2166 __be64 port_rcv_bubble;
2167 __be64 port_mark_fecn;
2168
2169 __be64 port_error_counter_summary;
2170 /* Sum of error counts/port */
2171
2172 struct _vls_dctrs {
2173 /* per-VL Data counters */
2174 __be64 port_vl_xmit_data;
2175 __be64 port_vl_rcv_data;
2176 __be64 port_vl_xmit_pkts;
2177 __be64 port_vl_rcv_pkts;
2178 __be64 port_vl_xmit_wait;
2179 __be64 sw_port_vl_congestion;
2180 __be64 port_vl_rcv_fecn;
2181 __be64 port_vl_rcv_becn;
2182 __be64 port_xmit_time_cong;
2183 __be64 port_vl_xmit_wasted_bw;
2184 __be64 port_vl_xmit_wait_data;
2185 __be64 port_vl_rcv_bubble;
2186 __be64 port_vl_mark_fecn;
2187 } vls[0];
2188 /* array size defined by #bits set in vl_select_mask*/
2189 } port[1]; /* array size defined by #ports in attribute modifier */
2190};
2191
2192struct opa_port_error_counters64_msg {
4d114fdd
JJ		 2193 /*
2194 * Request contains first two fields, response contains the
2195 * whole magilla
2196 */
77241056
MM		 2197 __be64 port_select_mask[4];
2198 __be32 vl_select_mask;
2199
2200 /* Response-only fields follow */
2201 __be32 reserved1;
2202 struct _port_ectrs {
2203 u8 port_number;
2204 u8 reserved2[7];
2205 __be64 port_rcv_constraint_errors;
2206 __be64 port_rcv_switch_relay_errors;
2207 __be64 port_xmit_discards;
2208 __be64 port_xmit_constraint_errors;
2209 __be64 port_rcv_remote_physical_errors;
2210 __be64 local_link_integrity_errors;
2211 __be64 port_rcv_errors;
2212 __be64 excessive_buffer_overruns;
2213 __be64 fm_config_errors;
2214 __be32 link_error_recovery;
2215 __be32 link_downed;
2216 u8 uncorrectable_errors;
2217 u8 reserved3[7];
2218 struct _vls_ectrs {
2219 __be64 port_vl_xmit_discards;
2220 } vls[0];
2221 /* array size defined by #bits set in vl_select_mask */
2222 } port[1]; /* array size defined by #ports in attribute modifier */
2223};
2224
2225struct opa_port_error_info_msg {
2226 __be64 port_select_mask[4];
2227 __be32 error_info_select_mask;
2228 __be32 reserved1;
2229 struct _port_ei {
77241056
MM		 2230 u8 port_number;
2231 u8 reserved2[7];
2232
2233 /* PortRcvErrorInfo */
2234 struct {
2235 u8 status_and_code;
2236 union {
2237 u8 raw[17];
2238 struct {
2239 /* EI1to12 format */
2240 u8 packet_flit1[8];
2241 u8 packet_flit2[8];
2242 u8 remaining_flit_bits12;
2243 } ei1to12;
2244 struct {
2245 u8 packet_bytes[8];
2246 u8 remaining_flit_bits;
2247 } ei13;
2248 } ei;
2249 u8 reserved3[6];
2250 } __packed port_rcv_ei;
2251
2252 /* ExcessiveBufferOverrunInfo */
2253 struct {
2254 u8 status_and_sc;
2255 u8 reserved4[7];
2256 } __packed excessive_buffer_overrun_ei;
2257
2258 /* PortXmitConstraintErrorInfo */
2259 struct {
2260 u8 status;
2261 u8 reserved5;
2262 __be16 pkey;
2263 __be32 slid;
2264 } __packed port_xmit_constraint_ei;
2265
2266 /* PortRcvConstraintErrorInfo */
2267 struct {
2268 u8 status;
2269 u8 reserved6;
2270 __be16 pkey;
2271 __be32 slid;
2272 } __packed port_rcv_constraint_ei;
2273
2274 /* PortRcvSwitchRelayErrorInfo */
2275 struct {
2276 u8 status_and_code;
2277 u8 reserved7[3];
2278 __u32 error_info;
2279 } __packed port_rcv_switch_relay_ei;
2280
2281 /* UncorrectableErrorInfo */
2282 struct {
2283 u8 status_and_code;
2284 u8 reserved8;
2285 } __packed uncorrectable_ei;
2286
2287 /* FMConfigErrorInfo */
2288 struct {
2289 u8 status_and_code;
2290 u8 error_info;
2291 } __packed fm_config_ei;
2292 __u32 reserved9;
2293 } port[1]; /* actual array size defined by #ports in attr modifier */
2294};
2295
2296/* opa_port_error_info_msg error_info_select_mask bit definitions */
2297enum error_info_selects {
2298 ES_PORT_RCV_ERROR_INFO = (1 << 31),
2299 ES_EXCESSIVE_BUFFER_OVERRUN_INFO = (1 << 30),
2300 ES_PORT_XMIT_CONSTRAINT_ERROR_INFO = (1 << 29),
2301 ES_PORT_RCV_CONSTRAINT_ERROR_INFO = (1 << 28),
2302 ES_PORT_RCV_SWITCH_RELAY_ERROR_INFO = (1 << 27),
2303 ES_UNCORRECTABLE_ERROR_INFO = (1 << 26),
2304 ES_FM_CONFIG_ERROR_INFO = (1 << 25)
2305};
2306
2307static int pma_get_opa_classportinfo(struct opa_pma_mad *pmp,
17fb4f29 2308 struct ib_device *ibdev, u32 *resp_len)
77241056
MM		 2309{
2310 struct opa_class_port_info *p =
2311 (struct opa_class_port_info *)pmp->data;
2312
2313 memset(pmp->data, 0, sizeof(pmp->data));
2314
2315 if (pmp->mad_hdr.attr_mod != 0)
2316 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2317
2318 p->base_version = OPA_MGMT_BASE_VERSION;
2319 p->class_version = OPA_SMI_CLASS_VERSION;
2320 /*
2321 * Expected response time is 4.096 usec. * 2^18 == 1.073741824 sec.
2322 */
2323 p->cap_mask2_resp_time = cpu_to_be32(18);
2324
2325 if (resp_len)
2326 *resp_len += sizeof(*p);
2327
2328 return reply((struct ib_mad_hdr *)pmp);
2329}
2330
2331static void a0_portstatus(struct hfi1_pportdata *ppd,
2332 struct opa_port_status_rsp *rsp, u32 vl_select_mask)
2333{
2334 if (!is_bx(ppd->dd)) {
2335 unsigned long vl;
d9d3e025 2336 u64 sum_vl_xmit_wait = 0;
77241056 2337 u32 vl_all_mask = VL_MASK_ALL;
77241056
MM		 2338
2339 for_each_set_bit(vl, (unsigned long *)&(vl_all_mask),
2340 8 * sizeof(vl_all_mask)) {
d9d3e025
IW		 2341 u64 tmp = sum_vl_xmit_wait +
2342 read_port_cntr(ppd, C_TX_WAIT_VL,
2343 idx_from_vl(vl));
2344 if (tmp < sum_vl_xmit_wait) {
2345 /* we wrapped */
2346 sum_vl_xmit_wait = (u64)~0;
2347 break;
2348 }
2349 sum_vl_xmit_wait = tmp;
77241056 2350 }
d9d3e025
IW		 2351 if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait)
2352 rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait);
77241056
MM		 2353 }
2354}
2355
77241056 2356static int pma_get_opa_portstatus(struct opa_pma_mad *pmp,
17fb4f29
JJ		 2357 struct ib_device *ibdev,
2358 u8 port, u32 *resp_len)
77241056
MM		 2359{
2360 struct opa_port_status_req *req =
2361 (struct opa_port_status_req *)pmp->data;
2362 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2363 struct opa_port_status_rsp *rsp;
2364 u32 vl_select_mask = be32_to_cpu(req->vl_select_mask);
2365 unsigned long vl;
2366 size_t response_data_size;
2367 u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2368 u8 port_num = req->port_num;
2369 u8 num_vls = hweight32(vl_select_mask);
2370 struct _vls_pctrs *vlinfo;
2371 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2372 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2373 int vfi;
2374 u64 tmp, tmp2;
2375
2376 response_data_size = sizeof(struct opa_port_status_rsp) +
2377 num_vls * sizeof(struct _vls_pctrs);
2378 if (response_data_size > sizeof(pmp->data)) {
2379 pmp->mad_hdr.status |= OPA_PM_STATUS_REQUEST_TOO_LARGE;
2380 return reply((struct ib_mad_hdr *)pmp);
2381 }
2382
d0d236ea
JJ		 2383 if (nports != 1 || (port_num && port_num != port) ||
2384 num_vls > OPA_MAX_VLS || (vl_select_mask & ~VL_MASK_ALL)) {
77241056
MM		 2385 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2386 return reply((struct ib_mad_hdr *)pmp);
2387 }
2388
2389 memset(pmp->data, 0, sizeof(pmp->data));
2390
2391 rsp = (struct opa_port_status_rsp *)pmp->data;
2392 if (port_num)
2393 rsp->port_num = port_num;
2394 else
2395 rsp->port_num = port;
2396
2397 rsp->port_rcv_constraint_errors =
2398 cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
2399 CNTR_INVALID_VL));
2400
2401 hfi1_read_link_quality(dd, &rsp->link_quality_indicator);
2402
2403 rsp->vl_select_mask = cpu_to_be32(vl_select_mask);
2404 rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS,
2405 CNTR_INVALID_VL));
2406 rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
2407 CNTR_INVALID_VL));
77241056
MM		 2408 rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
2409 CNTR_INVALID_VL));
2410 rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
2411 CNTR_INVALID_VL));
2412 rsp->port_multicast_xmit_pkts =
2413 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS,
17fb4f29 2414 CNTR_INVALID_VL));
77241056
MM		 2415 rsp->port_multicast_rcv_pkts =
2416 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS,
2417 CNTR_INVALID_VL));
2418 rsp->port_xmit_wait =
2419 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL));
2420 rsp->port_rcv_fecn =
2421 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL));
2422 rsp->port_rcv_becn =
2423 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
2424 rsp->port_xmit_discards =
2425 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD,
2426 CNTR_INVALID_VL));
2427 rsp->port_xmit_constraint_errors =
2428 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
2429 CNTR_INVALID_VL));
2430 rsp->port_rcv_remote_physical_errors =
2431 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
2432 CNTR_INVALID_VL));
2433 tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
2434 tmp2 = tmp + read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
2435 if (tmp2 < tmp) {
2436 /* overflow/wrapped */
2437 rsp->local_link_integrity_errors = cpu_to_be64(~0);
2438 } else {
2439 rsp->local_link_integrity_errors = cpu_to_be64(tmp2);
2440 }
2441 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
2442 tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
17fb4f29 2443 CNTR_INVALID_VL);
77241056
MM		 2444 if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) {
2445 /* overflow/wrapped */
2446 rsp->link_error_recovery = cpu_to_be32(~0);
2447 } else {
2448 rsp->link_error_recovery = cpu_to_be32(tmp2);
2449 }
2450 rsp->port_rcv_errors =
2451 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL));
2452 rsp->excessive_buffer_overruns =
2453 cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL));
2454 rsp->fm_config_errors =
2455 cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR,
2456 CNTR_INVALID_VL));
2457 rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN,
17fb4f29 2458 CNTR_INVALID_VL));
77241056
MM		 2459
2460 /* rsp->uncorrectable_errors is 8 bits wide, and it pegs at 0xff */
2461 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
2462 rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff;
2463
58721b8f 2464 vlinfo = &rsp->vls[0];
77241056
MM		 2465 vfi = 0;
2466 /* The vl_select_mask has been checked above, and we know
2467 * that it contains only entries which represent valid VLs.
2468 * So in the for_each_set_bit() loop below, we don't need
2469 * any additional checks for vl.
2470 */
2471 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2472 8 * sizeof(vl_select_mask)) {
2473 memset(vlinfo, 0, sizeof(*vlinfo));
2474
2475 tmp = read_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl));
2476 rsp->vls[vfi].port_vl_rcv_data = cpu_to_be64(tmp);
77241056
MM		 2477
2478 rsp->vls[vfi].port_vl_rcv_pkts =
2479 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
17fb4f29 2480 idx_from_vl(vl)));
77241056
MM		 2481
2482 rsp->vls[vfi].port_vl_xmit_data =
2483 cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL,
17fb4f29 2484 idx_from_vl(vl)));
77241056
MM		 2485
2486 rsp->vls[vfi].port_vl_xmit_pkts =
2487 cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
17fb4f29 2488 idx_from_vl(vl)));
77241056
MM		 2489
2490 rsp->vls[vfi].port_vl_xmit_wait =
2491 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL,
17fb4f29 2492 idx_from_vl(vl)));
77241056
MM		 2493
2494 rsp->vls[vfi].port_vl_rcv_fecn =
2495 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL,
17fb4f29 2496 idx_from_vl(vl)));
77241056
MM		 2497
2498 rsp->vls[vfi].port_vl_rcv_becn =
2499 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL,
17fb4f29 2500 idx_from_vl(vl)));
77241056
MM		 2501
2502 vlinfo++;
2503 vfi++;
2504 }
2505
2506 a0_portstatus(ppd, rsp, vl_select_mask);
2507
2508 if (resp_len)
2509 *resp_len += response_data_size;
2510
2511 return reply((struct ib_mad_hdr *)pmp);
2512}
2513
f0852922
AL		 2514static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port,
2515 u8 res_lli, u8 res_ler)
77241056
MM		 2516{
2517 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2518 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2519 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2520 u64 error_counter_summary = 0, tmp;
2521
2522 error_counter_summary += read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
2523 CNTR_INVALID_VL);
2524 /* port_rcv_switch_relay_errors is 0 for HFIs */
2525 error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_DSCD,
2526 CNTR_INVALID_VL);
2527 error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
2528 CNTR_INVALID_VL);
2529 error_counter_summary += read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
17fb4f29 2530 CNTR_INVALID_VL);
f0852922
AL		 2531 /* local link integrity must be right-shifted by the lli resolution */
2532 tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
2533 tmp += read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
2534 error_counter_summary += (tmp >> res_lli);
2535 /* link error recovery must b right-shifted by the ler resolution */
2536 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
2537 tmp += read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, CNTR_INVALID_VL);
2538 error_counter_summary += (tmp >> res_ler);
77241056 2539 error_counter_summary += read_dev_cntr(dd, C_DC_RCV_ERR,
17fb4f29 2540 CNTR_INVALID_VL);
77241056
MM		 2541 error_counter_summary += read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL);
2542 error_counter_summary += read_dev_cntr(dd, C_DC_FM_CFG_ERR,
17fb4f29 2543 CNTR_INVALID_VL);
77241056
MM		 2544 /* ppd->link_downed is a 32-bit value */
2545 error_counter_summary += read_port_cntr(ppd, C_SW_LINK_DOWN,
2546 CNTR_INVALID_VL);
2547 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
2548 /* this is an 8-bit quantity */
2549 error_counter_summary += tmp < 0x100 ? (tmp & 0xff) : 0xff;
2550
2551 return error_counter_summary;
2552}
2553
d9d3e025 2554static void a0_datacounters(struct hfi1_pportdata *ppd, struct _port_dctrs *rsp,
77241056
MM		 2555 u32 vl_select_mask)
2556{
d9d3e025 2557 if (!is_bx(ppd->dd)) {
77241056 2558 unsigned long vl;
db00a055 2559 u64 sum_vl_xmit_wait = 0;
d9d3e025 2560 u32 vl_all_mask = VL_MASK_ALL;
db00a055 2561
d9d3e025
IW		 2562 for_each_set_bit(vl, (unsigned long *)&(vl_all_mask),
2563 8 * sizeof(vl_all_mask)) {
77241056 2564 u64 tmp = sum_vl_xmit_wait +
d9d3e025
IW		 2565 read_port_cntr(ppd, C_TX_WAIT_VL,
2566 idx_from_vl(vl));
77241056
MM		 2567 if (tmp < sum_vl_xmit_wait) {
2568 /* we wrapped */
50e5dcbe 2569 sum_vl_xmit_wait = (u64)~0;
77241056
MM		 2570 break;
2571 }
2572 sum_vl_xmit_wait = tmp;
2573 }
2574 if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait)
2575 rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait);
2576 }
2577}
2578
b8d114eb
SS		 2579static void pma_get_opa_port_dctrs(struct ib_device *ibdev,
2580 struct _port_dctrs *rsp)
2581{
2582 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2583
2584 rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS,
2585 CNTR_INVALID_VL));
2586 rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
2587 CNTR_INVALID_VL));
2588 rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
2589 CNTR_INVALID_VL));
2590 rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
2591 CNTR_INVALID_VL));
2592 rsp->port_multicast_xmit_pkts =
2593 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS,
2594 CNTR_INVALID_VL));
2595 rsp->port_multicast_rcv_pkts =
2596 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS,
2597 CNTR_INVALID_VL));
2598}
2599
77241056 2600static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
17fb4f29
JJ		 2601 struct ib_device *ibdev,
2602 u8 port, u32 *resp_len)
77241056
MM		 2603{
2604 struct opa_port_data_counters_msg *req =
2605 (struct opa_port_data_counters_msg *)pmp->data;
2606 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2607 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2608 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2609 struct _port_dctrs *rsp;
2610 struct _vls_dctrs *vlinfo;
2611 size_t response_data_size;
2612 u32 num_ports;
2613 u8 num_pslm;
2614 u8 lq, num_vls;
f0852922 2615 u8 res_lli, res_ler;
77241056
MM		 2616 u64 port_mask;
2617 unsigned long port_num;
2618 unsigned long vl;
2619 u32 vl_select_mask;
2620 int vfi;
2621
2622 num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2623 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
2624 num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
2625 vl_select_mask = be32_to_cpu(req->vl_select_mask);
f0852922
AL		 2626 res_lli = (u8)(be32_to_cpu(req->resolution) & MSK_LLI) >> MSK_LLI_SFT;
2627 res_lli = res_lli ? res_lli + ADD_LLI : 0;
2628 res_ler = (u8)(be32_to_cpu(req->resolution) & MSK_LER) >> MSK_LER_SFT;
2629 res_ler = res_ler ? res_ler + ADD_LER : 0;
77241056
MM		 2630
2631 if (num_ports != 1 || (vl_select_mask & ~VL_MASK_ALL)) {
2632 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2633 return reply((struct ib_mad_hdr *)pmp);
2634 }
2635
2636 /* Sanity check */
2637 response_data_size = sizeof(struct opa_port_data_counters_msg) +
2638 num_vls * sizeof(struct _vls_dctrs);
2639
2640 if (response_data_size > sizeof(pmp->data)) {
2641 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2642 return reply((struct ib_mad_hdr *)pmp);
2643 }
2644
2645 /*
2646 * The bit set in the mask needs to be consistent with the
2647 * port the request came in on.
2648 */
2649 port_mask = be64_to_cpu(req->port_select_mask[3]);
2650 port_num = find_first_bit((unsigned long *)&port_mask,
2651 sizeof(port_mask));
2652
2653 if ((u8)port_num != port) {
2654 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2655 return reply((struct ib_mad_hdr *)pmp);
2656 }
2657
acc17d67 2658 rsp = &req->port[0];
77241056
MM		 2659 memset(rsp, 0, sizeof(*rsp));
2660
2661 rsp->port_number = port;
2662 /*
2663 * Note that link_quality_indicator is a 32 bit quantity in
2664 * 'datacounters' queries (as opposed to 'portinfo' queries,
2665 * where it's a byte).
2666 */
2667 hfi1_read_link_quality(dd, &lq);
2668 rsp->link_quality_indicator = cpu_to_be32((u32)lq);
b8d114eb 2669 pma_get_opa_port_dctrs(ibdev, rsp);
77241056 2670
77241056
MM		 2671 rsp->port_xmit_wait =
2672 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL));
2673 rsp->port_rcv_fecn =
2674 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL));
2675 rsp->port_rcv_becn =
2676 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
77241056 2677 rsp->port_error_counter_summary =
f0852922
AL		 2678 cpu_to_be64(get_error_counter_summary(ibdev, port,
2679 res_lli, res_ler));
77241056 2680
58721b8f 2681 vlinfo = &rsp->vls[0];
77241056
MM		 2682 vfi = 0;
2683 /* The vl_select_mask has been checked above, and we know
2684 * that it contains only entries which represent valid VLs.
2685 * So in the for_each_set_bit() loop below, we don't need
2686 * any additional checks for vl.
2687 */
2688 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
17fb4f29 2689 8 * sizeof(req->vl_select_mask)) {
77241056
MM		 2690 memset(vlinfo, 0, sizeof(*vlinfo));
2691
2692 rsp->vls[vfi].port_vl_xmit_data =
2693 cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL,
17fb4f29 2694 idx_from_vl(vl)));
77241056
MM		 2695
2696 rsp->vls[vfi].port_vl_rcv_data =
2697 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_FLIT_VL,
17fb4f29 2698 idx_from_vl(vl)));
77241056
MM		 2699
2700 rsp->vls[vfi].port_vl_xmit_pkts =
2701 cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
17fb4f29 2702 idx_from_vl(vl)));
77241056
MM		 2703
2704 rsp->vls[vfi].port_vl_rcv_pkts =
2705 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
17fb4f29 2706 idx_from_vl(vl)));
77241056
MM		 2707
2708 rsp->vls[vfi].port_vl_xmit_wait =
2709 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL,
17fb4f29 2710 idx_from_vl(vl)));
77241056
MM		 2711
2712 rsp->vls[vfi].port_vl_rcv_fecn =
2713 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL,
17fb4f29 2714 idx_from_vl(vl)));
77241056
MM		 2715 rsp->vls[vfi].port_vl_rcv_becn =
2716 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL,
17fb4f29 2717 idx_from_vl(vl)));
77241056
MM		 2718
2719 /* rsp->port_vl_xmit_time_cong is 0 for HFIs */
2720 /* rsp->port_vl_xmit_wasted_bw ??? */
2721 /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ???
4d114fdd
JJ		 2722 * does this differ from rsp->vls[vfi].port_vl_xmit_wait
2723 */
77241056 2724 /*rsp->vls[vfi].port_vl_mark_fecn =
4d114fdd
JJ		 2725 * cpu_to_be64(read_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT
2726 * + offset));
2727 */
77241056
MM		 2728 vlinfo++;
2729 vfi++;
2730 }
2731
d9d3e025 2732 a0_datacounters(ppd, rsp, vl_select_mask);
77241056
MM		 2733
2734 if (resp_len)
2735 *resp_len += response_data_size;
2736
2737 return reply((struct ib_mad_hdr *)pmp);
2738}
2739
b8d114eb
SS		 2740static int pma_get_ib_portcounters_ext(struct ib_pma_mad *pmp,
2741 struct ib_device *ibdev, u8 port)
2742{
2743 struct ib_pma_portcounters_ext *p = (struct ib_pma_portcounters_ext *)
2744 pmp->data;
2745 struct _port_dctrs rsp;
2746
2747 if (pmp->mad_hdr.attr_mod != 0 || p->port_select != port) {
2748 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2749 goto bail;
2750 }
2751
2752 memset(&rsp, 0, sizeof(rsp));
2753 pma_get_opa_port_dctrs(ibdev, &rsp);
2754
2755 p->port_xmit_data = rsp.port_xmit_data;
2756 p->port_rcv_data = rsp.port_rcv_data;
2757 p->port_xmit_packets = rsp.port_xmit_pkts;
2758 p->port_rcv_packets = rsp.port_rcv_pkts;
2759 p->port_unicast_xmit_packets = 0;
2760 p->port_unicast_rcv_packets = 0;
2761 p->port_multicast_xmit_packets = rsp.port_multicast_xmit_pkts;
2762 p->port_multicast_rcv_packets = rsp.port_multicast_rcv_pkts;
2763
2764bail:
2765 return reply((struct ib_mad_hdr *)pmp);
2766}
2767
2768static void pma_get_opa_port_ectrs(struct ib_device *ibdev,
2769 struct _port_ectrs *rsp, u8 port)
2770{
2771 u64 tmp, tmp2;
2772 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2773 struct hfi1_ibport *ibp = to_iport(ibdev, port);
2774 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
2775
2776 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
2777 tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
2778 CNTR_INVALID_VL);
2779 if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) {
2780 /* overflow/wrapped */
2781 rsp->link_error_recovery = cpu_to_be32(~0);
2782 } else {
2783 rsp->link_error_recovery = cpu_to_be32(tmp2);
2784 }
2785
2786 rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN,
2787 CNTR_INVALID_VL));
2788 rsp->port_rcv_errors =
2789 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL));
2790 rsp->port_rcv_remote_physical_errors =
2791 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
2792 CNTR_INVALID_VL));
2793 rsp->port_rcv_switch_relay_errors = 0;
2794 rsp->port_xmit_discards =
2795 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD,
2796 CNTR_INVALID_VL));
2797 rsp->port_xmit_constraint_errors =
2798 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR,
2799 CNTR_INVALID_VL));
2800 rsp->port_rcv_constraint_errors =
2801 cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR,
2802 CNTR_INVALID_VL));
2803 tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
2804 tmp2 = tmp + read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
2805 if (tmp2 < tmp) {
2806 /* overflow/wrapped */
2807 rsp->local_link_integrity_errors = cpu_to_be64(~0);
2808 } else {
2809 rsp->local_link_integrity_errors = cpu_to_be64(tmp2);
2810 }
2811 rsp->excessive_buffer_overruns =
2812 cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL));
2813}
2814
77241056 2815static int pma_get_opa_porterrors(struct opa_pma_mad *pmp,
17fb4f29
JJ		 2816 struct ib_device *ibdev,
2817 u8 port, u32 *resp_len)
77241056
MM		 2818{
2819 size_t response_data_size;
2820 struct _port_ectrs *rsp;
eb2e557c 2821 u8 port_num;
77241056
MM		 2822 struct opa_port_error_counters64_msg *req;
2823 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2824 u32 num_ports;
2825 u8 num_pslm;
2826 u8 num_vls;
2827 struct hfi1_ibport *ibp;
2828 struct hfi1_pportdata *ppd;
2829 struct _vls_ectrs *vlinfo;
2830 unsigned long vl;
b8d114eb 2831 u64 port_mask, tmp;
77241056
MM		 2832 u32 vl_select_mask;
2833 int vfi;
2834
2835 req = (struct opa_port_error_counters64_msg *)pmp->data;
2836
2837 num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
2838
2839 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
2840 num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
2841
2842 if (num_ports != 1 || num_ports != num_pslm) {
2843 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2844 return reply((struct ib_mad_hdr *)pmp);
2845 }
2846
2847 response_data_size = sizeof(struct opa_port_error_counters64_msg) +
2848 num_vls * sizeof(struct _vls_ectrs);
2849
2850 if (response_data_size > sizeof(pmp->data)) {
2851 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2852 return reply((struct ib_mad_hdr *)pmp);
2853 }
2854 /*
2855 * The bit set in the mask needs to be consistent with the
2856 * port the request came in on.
2857 */
2858 port_mask = be64_to_cpu(req->port_select_mask[3]);
2859 port_num = find_first_bit((unsigned long *)&port_mask,
17fb4f29 2860 sizeof(port_mask));
77241056 2861
eb2e557c 2862 if (port_num != port) {
77241056
MM		 2863 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2864 return reply((struct ib_mad_hdr *)pmp);
2865 }
2866
acc17d67 2867 rsp = &req->port[0];
77241056
MM		 2868
2869 ibp = to_iport(ibdev, port_num);
2870 ppd = ppd_from_ibp(ibp);
2871
2872 memset(rsp, 0, sizeof(*rsp));
eb2e557c 2873 rsp->port_number = port_num;
77241056 2874
b8d114eb 2875 pma_get_opa_port_ectrs(ibdev, rsp, port_num);
77241056 2876
77241056
MM		 2877 rsp->port_rcv_remote_physical_errors =
2878 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
b8d114eb 2879 CNTR_INVALID_VL));
77241056
MM		 2880 rsp->fm_config_errors =
2881 cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR,
17fb4f29 2882 CNTR_INVALID_VL));
77241056 2883 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL);
b8d114eb 2884
77241056
MM		 2885 rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff;
2886
acc17d67 2887 vlinfo = &rsp->vls[0];
77241056
MM		 2888 vfi = 0;
2889 vl_select_mask = be32_to_cpu(req->vl_select_mask);
2890 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
2891 8 * sizeof(req->vl_select_mask)) {
2892 memset(vlinfo, 0, sizeof(*vlinfo));
2893 /* vlinfo->vls[vfi].port_vl_xmit_discards ??? */
2894 vlinfo += 1;
2895 vfi++;
2896 }
2897
2898 if (resp_len)
2899 *resp_len += response_data_size;
2900
2901 return reply((struct ib_mad_hdr *)pmp);
2902}
2903
b8d114eb
SS		 2904static int pma_get_ib_portcounters(struct ib_pma_mad *pmp,
2905 struct ib_device *ibdev, u8 port)
2906{
2907 struct ib_pma_portcounters *p = (struct ib_pma_portcounters *)
2908 pmp->data;
2909 struct _port_ectrs rsp;
2910 u64 temp_link_overrun_errors;
2911 u64 temp_64;
2912 u32 temp_32;
2913
2914 memset(&rsp, 0, sizeof(rsp));
2915 pma_get_opa_port_ectrs(ibdev, &rsp, port);
2916
2917 if (pmp->mad_hdr.attr_mod != 0 || p->port_select != port) {
2918 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
2919 goto bail;
2920 }
2921
2922 p->symbol_error_counter = 0; /* N/A for OPA */
2923
2924 temp_32 = be32_to_cpu(rsp.link_error_recovery);
2925 if (temp_32 > 0xFFUL)
2926 p->link_error_recovery_counter = 0xFF;
2927 else
2928 p->link_error_recovery_counter = (u8)temp_32;
2929
2930 temp_32 = be32_to_cpu(rsp.link_downed);
2931 if (temp_32 > 0xFFUL)
2932 p->link_downed_counter = 0xFF;
2933 else
2934 p->link_downed_counter = (u8)temp_32;
2935
2936 temp_64 = be64_to_cpu(rsp.port_rcv_errors);
2937 if (temp_64 > 0xFFFFUL)
2938 p->port_rcv_errors = cpu_to_be16(0xFFFF);
2939 else
2940 p->port_rcv_errors = cpu_to_be16((u16)temp_64);
2941
2942 temp_64 = be64_to_cpu(rsp.port_rcv_remote_physical_errors);
2943 if (temp_64 > 0xFFFFUL)
2944 p->port_rcv_remphys_errors = cpu_to_be16(0xFFFF);
2945 else
2946 p->port_rcv_remphys_errors = cpu_to_be16((u16)temp_64);
2947
2948 temp_64 = be64_to_cpu(rsp.port_rcv_switch_relay_errors);
2949 p->port_rcv_switch_relay_errors = cpu_to_be16((u16)temp_64);
2950
2951 temp_64 = be64_to_cpu(rsp.port_xmit_discards);
2952 if (temp_64 > 0xFFFFUL)
2953 p->port_xmit_discards = cpu_to_be16(0xFFFF);
2954 else
2955 p->port_xmit_discards = cpu_to_be16((u16)temp_64);
2956
2957 temp_64 = be64_to_cpu(rsp.port_xmit_constraint_errors);
2958 if (temp_64 > 0xFFUL)
2959 p->port_xmit_constraint_errors = 0xFF;
2960 else
2961 p->port_xmit_constraint_errors = (u8)temp_64;
2962
2963 temp_64 = be64_to_cpu(rsp.port_rcv_constraint_errors);
2964 if (temp_64 > 0xFFUL)
2965 p->port_rcv_constraint_errors = 0xFFUL;
2966 else
2967 p->port_rcv_constraint_errors = (u8)temp_64;
2968
2969 /* LocalLink: 7:4, BufferOverrun: 3:0 */
2970 temp_64 = be64_to_cpu(rsp.local_link_integrity_errors);
2971 if (temp_64 > 0xFUL)
2972 temp_64 = 0xFUL;
2973
2974 temp_link_overrun_errors = temp_64 << 4;
2975
2976 temp_64 = be64_to_cpu(rsp.excessive_buffer_overruns);
2977 if (temp_64 > 0xFUL)
2978 temp_64 = 0xFUL;
2979 temp_link_overrun_errors |= temp_64;
2980
2981 p->link_overrun_errors = (u8)temp_link_overrun_errors;
2982
2983 p->vl15_dropped = 0; /* N/A for OPA */
2984
2985bail:
2986 return reply((struct ib_mad_hdr *)pmp);
2987}
2988
77241056 2989static int pma_get_opa_errorinfo(struct opa_pma_mad *pmp,
17fb4f29
JJ		 2990 struct ib_device *ibdev,
2991 u8 port, u32 *resp_len)
77241056
MM		 2992{
2993 size_t response_data_size;
2994 struct _port_ei *rsp;
2995 struct opa_port_error_info_msg *req;
2996 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
2997 u64 port_mask;
2998 u32 num_ports;
eb2e557c 2999 u8 port_num;
77241056
MM		 3000 u8 num_pslm;
3001 u64 reg;
3002
3003 req = (struct opa_port_error_info_msg *)pmp->data;
acc17d67 3004 rsp = &req->port[0];
77241056
MM		 3005
3006 num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod));
3007 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
3008
3009 memset(rsp, 0, sizeof(*rsp));
3010
3011 if (num_ports != 1 || num_ports != num_pslm) {
3012 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3013 return reply((struct ib_mad_hdr *)pmp);
3014 }
3015
3016 /* Sanity check */
3017 response_data_size = sizeof(struct opa_port_error_info_msg);
3018
3019 if (response_data_size > sizeof(pmp->data)) {
3020 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3021 return reply((struct ib_mad_hdr *)pmp);
3022 }
3023
3024 /*
3025 * The bit set in the mask needs to be consistent with the port
3026 * the request came in on.
3027 */
3028 port_mask = be64_to_cpu(req->port_select_mask[3]);
3029 port_num = find_first_bit((unsigned long *)&port_mask,
3030 sizeof(port_mask));
3031
eb2e557c 3032 if (port_num != port) {
77241056
MM		 3033 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3034 return reply((struct ib_mad_hdr *)pmp);
3035 }
3036
3037 /* PortRcvErrorInfo */
3038 rsp->port_rcv_ei.status_and_code =
3039 dd->err_info_rcvport.status_and_code;
3040 memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit1,
17fb4f29 3041 &dd->err_info_rcvport.packet_flit1, sizeof(u64));
77241056 3042 memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit2,
17fb4f29 3043 &dd->err_info_rcvport.packet_flit2, sizeof(u64));
77241056
MM		 3044
3045 /* ExcessiverBufferOverrunInfo */
3046 reg = read_csr(dd, RCV_ERR_INFO);
3047 if (reg & RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK) {
4d114fdd
JJ		 3048 /*
3049 * if the RcvExcessBufferOverrun bit is set, save SC of
3050 * first pkt that encountered an excess buffer overrun
3051 */
77241056
MM		 3052 u8 tmp = (u8)reg;
3053
3054 tmp &= RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SC_SMASK;
3055 tmp <<= 2;
3056 rsp->excessive_buffer_overrun_ei.status_and_sc = tmp;
3057 /* set the status bit */
3058 rsp->excessive_buffer_overrun_ei.status_and_sc |= 0x80;
3059 }
3060
3061 rsp->port_xmit_constraint_ei.status =
3062 dd->err_info_xmit_constraint.status;
3063 rsp->port_xmit_constraint_ei.pkey =
3064 cpu_to_be16(dd->err_info_xmit_constraint.pkey);
3065 rsp->port_xmit_constraint_ei.slid =
3066 cpu_to_be32(dd->err_info_xmit_constraint.slid);
3067
3068 rsp->port_rcv_constraint_ei.status =
3069 dd->err_info_rcv_constraint.status;
3070 rsp->port_rcv_constraint_ei.pkey =
3071 cpu_to_be16(dd->err_info_rcv_constraint.pkey);
3072 rsp->port_rcv_constraint_ei.slid =
3073 cpu_to_be32(dd->err_info_rcv_constraint.slid);
3074
3075 /* UncorrectableErrorInfo */
3076 rsp->uncorrectable_ei.status_and_code = dd->err_info_uncorrectable;
3077
3078 /* FMConfigErrorInfo */
3079 rsp->fm_config_ei.status_and_code = dd->err_info_fmconfig;
3080
3081 if (resp_len)
3082 *resp_len += response_data_size;
3083
3084 return reply((struct ib_mad_hdr *)pmp);
3085}
3086
3087static int pma_set_opa_portstatus(struct opa_pma_mad *pmp,
17fb4f29
JJ		 3088 struct ib_device *ibdev,
3089 u8 port, u32 *resp_len)
77241056
MM		 3090{
3091 struct opa_clear_port_status *req =
3092 (struct opa_clear_port_status *)pmp->data;
3093 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
3094 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3095 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3096 u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24;
3097 u64 portn = be64_to_cpu(req->port_select_mask[3]);
3098 u32 counter_select = be32_to_cpu(req->counter_select_mask);
3099 u32 vl_select_mask = VL_MASK_ALL; /* clear all per-vl cnts */
3100 unsigned long vl;
3101
3102 if ((nports != 1) || (portn != 1 << port)) {
3103 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3104 return reply((struct ib_mad_hdr *)pmp);
3105 }
3106 /*
3107 * only counters returned by pma_get_opa_portstatus() are
3108 * handled, so when pma_get_opa_portstatus() gets a fix,
3109 * the corresponding change should be made here as well.
3110 */
3111
3112 if (counter_select & CS_PORT_XMIT_DATA)
3113 write_dev_cntr(dd, C_DC_XMIT_FLITS, CNTR_INVALID_VL, 0);
3114
3115 if (counter_select & CS_PORT_RCV_DATA)
3116 write_dev_cntr(dd, C_DC_RCV_FLITS, CNTR_INVALID_VL, 0);
3117
3118 if (counter_select & CS_PORT_XMIT_PKTS)
3119 write_dev_cntr(dd, C_DC_XMIT_PKTS, CNTR_INVALID_VL, 0);
3120
3121 if (counter_select & CS_PORT_RCV_PKTS)
3122 write_dev_cntr(dd, C_DC_RCV_PKTS, CNTR_INVALID_VL, 0);
3123
3124 if (counter_select & CS_PORT_MCAST_XMIT_PKTS)
3125 write_dev_cntr(dd, C_DC_MC_XMIT_PKTS, CNTR_INVALID_VL, 0);
3126
3127 if (counter_select & CS_PORT_MCAST_RCV_PKTS)
3128 write_dev_cntr(dd, C_DC_MC_RCV_PKTS, CNTR_INVALID_VL, 0);
3129
3130 if (counter_select & CS_PORT_XMIT_WAIT)
3131 write_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL, 0);
3132
3133 /* ignore cs_sw_portCongestion for HFIs */
3134
3135 if (counter_select & CS_PORT_RCV_FECN)
3136 write_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL, 0);
3137
3138 if (counter_select & CS_PORT_RCV_BECN)
3139 write_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL, 0);
3140
3141 /* ignore cs_port_xmit_time_cong for HFIs */
3142 /* ignore cs_port_xmit_wasted_bw for now */
3143 /* ignore cs_port_xmit_wait_data for now */
3144 if (counter_select & CS_PORT_RCV_BUBBLE)
3145 write_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL, 0);
3146
3147 /* Only applicable for switch */
4d114fdd
JJ		 3148 /* if (counter_select & CS_PORT_MARK_FECN)
3149 * write_csr(dd, DCC_PRF_PORT_MARK_FECN_CNT, 0);
3150 */
77241056
MM		 3151
3152 if (counter_select & CS_PORT_RCV_CONSTRAINT_ERRORS)
3153 write_port_cntr(ppd, C_SW_RCV_CSTR_ERR, CNTR_INVALID_VL, 0);
3154
3155 /* ignore cs_port_rcv_switch_relay_errors for HFIs */
3156 if (counter_select & CS_PORT_XMIT_DISCARDS)
3157 write_port_cntr(ppd, C_SW_XMIT_DSCD, CNTR_INVALID_VL, 0);
3158
3159 if (counter_select & CS_PORT_XMIT_CONSTRAINT_ERRORS)
3160 write_port_cntr(ppd, C_SW_XMIT_CSTR_ERR, CNTR_INVALID_VL, 0);
3161
3162 if (counter_select & CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS)
3163 write_dev_cntr(dd, C_DC_RMT_PHY_ERR, CNTR_INVALID_VL, 0);
3164
3165 if (counter_select & CS_LOCAL_LINK_INTEGRITY_ERRORS) {
3166 write_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL, 0);
3167 write_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL, 0);
3168 }
3169
3170 if (counter_select & CS_LINK_ERROR_RECOVERY) {
3171 write_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL, 0);
3172 write_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
17fb4f29 3173 CNTR_INVALID_VL, 0);
77241056
MM		 3174 }
3175
3176 if (counter_select & CS_PORT_RCV_ERRORS)
3177 write_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL, 0);
3178
3179 if (counter_select & CS_EXCESSIVE_BUFFER_OVERRUNS) {
3180 write_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL, 0);
3181 dd->rcv_ovfl_cnt = 0;
3182 }
3183
3184 if (counter_select & CS_FM_CONFIG_ERRORS)
3185 write_dev_cntr(dd, C_DC_FM_CFG_ERR, CNTR_INVALID_VL, 0);
3186
3187 if (counter_select & CS_LINK_DOWNED)
3188 write_port_cntr(ppd, C_SW_LINK_DOWN, CNTR_INVALID_VL, 0);
3189
3190 if (counter_select & CS_UNCORRECTABLE_ERRORS)
3191 write_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL, 0);
3192
3193 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
3194 8 * sizeof(vl_select_mask)) {
77241056
MM		 3195 if (counter_select & CS_PORT_XMIT_DATA)
3196 write_port_cntr(ppd, C_TX_FLIT_VL, idx_from_vl(vl), 0);
3197
3198 if (counter_select & CS_PORT_RCV_DATA)
3199 write_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl), 0);
3200
3201 if (counter_select & CS_PORT_XMIT_PKTS)
3202 write_port_cntr(ppd, C_TX_PKT_VL, idx_from_vl(vl), 0);
3203
3204 if (counter_select & CS_PORT_RCV_PKTS)
3205 write_dev_cntr(dd, C_DC_RX_PKT_VL, idx_from_vl(vl), 0);
3206
3207 if (counter_select & CS_PORT_XMIT_WAIT)
3208 write_port_cntr(ppd, C_TX_WAIT_VL, idx_from_vl(vl), 0);
3209
3210 /* sw_port_vl_congestion is 0 for HFIs */
3211 if (counter_select & CS_PORT_RCV_FECN)
3212 write_dev_cntr(dd, C_DC_RCV_FCN_VL, idx_from_vl(vl), 0);
3213
3214 if (counter_select & CS_PORT_RCV_BECN)
3215 write_dev_cntr(dd, C_DC_RCV_BCN_VL, idx_from_vl(vl), 0);
3216
3217 /* port_vl_xmit_time_cong is 0 for HFIs */
3218 /* port_vl_xmit_wasted_bw ??? */
3219 /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ??? */
3220 if (counter_select & CS_PORT_RCV_BUBBLE)
3221 write_dev_cntr(dd, C_DC_RCV_BBL_VL, idx_from_vl(vl), 0);
3222
4d114fdd
JJ		 3223 /* if (counter_select & CS_PORT_MARK_FECN)
3224 * write_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT + offset, 0);
3225 */
77241056
MM		 3226 /* port_vl_xmit_discards ??? */
3227 }
3228
3229 if (resp_len)
3230 *resp_len += sizeof(*req);
3231
3232 return reply((struct ib_mad_hdr *)pmp);
3233}
3234
3235static int pma_set_opa_errorinfo(struct opa_pma_mad *pmp,
17fb4f29
JJ		 3236 struct ib_device *ibdev,
3237 u8 port, u32 *resp_len)
77241056
MM		 3238{
3239 struct _port_ei *rsp;
3240 struct opa_port_error_info_msg *req;
3241 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
3242 u64 port_mask;
3243 u32 num_ports;
eb2e557c 3244 u8 port_num;
77241056
MM		 3245 u8 num_pslm;
3246 u32 error_info_select;
3247
3248 req = (struct opa_port_error_info_msg *)pmp->data;
acc17d67 3249 rsp = &req->port[0];
77241056
MM		 3250
3251 num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod));
3252 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
3253
3254 memset(rsp, 0, sizeof(*rsp));
3255
3256 if (num_ports != 1 || num_ports != num_pslm) {
3257 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3258 return reply((struct ib_mad_hdr *)pmp);
3259 }
3260
3261 /*
3262 * The bit set in the mask needs to be consistent with the port
3263 * the request came in on.
3264 */
3265 port_mask = be64_to_cpu(req->port_select_mask[3]);
3266 port_num = find_first_bit((unsigned long *)&port_mask,
3267 sizeof(port_mask));
3268
eb2e557c 3269 if (port_num != port) {
77241056
MM		 3270 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
3271 return reply((struct ib_mad_hdr *)pmp);
3272 }
3273
3274 error_info_select = be32_to_cpu(req->error_info_select_mask);
3275
3276 /* PortRcvErrorInfo */
3277 if (error_info_select & ES_PORT_RCV_ERROR_INFO)
3278 /* turn off status bit */
3279 dd->err_info_rcvport.status_and_code &= ~OPA_EI_STATUS_SMASK;
3280
3281 /* ExcessiverBufferOverrunInfo */
3282 if (error_info_select & ES_EXCESSIVE_BUFFER_OVERRUN_INFO)
4d114fdd
JJ		 3283 /*
3284 * status bit is essentially kept in the h/w - bit 5 of
3285 * RCV_ERR_INFO
3286 */
77241056
MM		 3287 write_csr(dd, RCV_ERR_INFO,
3288 RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK);
3289
3290 if (error_info_select & ES_PORT_XMIT_CONSTRAINT_ERROR_INFO)
3291 dd->err_info_xmit_constraint.status &= ~OPA_EI_STATUS_SMASK;
3292
3293 if (error_info_select & ES_PORT_RCV_CONSTRAINT_ERROR_INFO)
3294 dd->err_info_rcv_constraint.status &= ~OPA_EI_STATUS_SMASK;
3295
3296 /* UncorrectableErrorInfo */
3297 if (error_info_select & ES_UNCORRECTABLE_ERROR_INFO)
3298 /* turn off status bit */
3299 dd->err_info_uncorrectable &= ~OPA_EI_STATUS_SMASK;
3300
3301 /* FMConfigErrorInfo */
3302 if (error_info_select & ES_FM_CONFIG_ERROR_INFO)
3303 /* turn off status bit */
3304 dd->err_info_fmconfig &= ~OPA_EI_STATUS_SMASK;
3305
3306 if (resp_len)
3307 *resp_len += sizeof(*req);
3308
3309 return reply((struct ib_mad_hdr *)pmp);
3310}
3311
3312struct opa_congestion_info_attr {
3313 __be16 congestion_info;
3314 u8 control_table_cap; /* Multiple of 64 entry unit CCTs */
3315 u8 congestion_log_length;
3316} __packed;
3317
3318static int __subn_get_opa_cong_info(struct opa_smp *smp, u32 am, u8 *data,
3319 struct ib_device *ibdev, u8 port,
3320 u32 *resp_len)
3321{
3322 struct opa_congestion_info_attr *p =
3323 (struct opa_congestion_info_attr *)data;
3324 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3325 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3326
3327 p->congestion_info = 0;
3328 p->control_table_cap = ppd->cc_max_table_entries;
3329 p->congestion_log_length = OPA_CONG_LOG_ELEMS;
3330
3331 if (resp_len)
3332 *resp_len += sizeof(*p);
3333
3334 return reply((struct ib_mad_hdr *)smp);
3335}
3336
3337static int __subn_get_opa_cong_setting(struct opa_smp *smp, u32 am,
17fb4f29
JJ		 3338 u8 *data, struct ib_device *ibdev,
3339 u8 port, u32 *resp_len)
77241056
MM		 3340{
3341 int i;
3342 struct opa_congestion_setting_attr *p =
50e5dcbe 3343 (struct opa_congestion_setting_attr *)data;
77241056
MM		 3344 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3345 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3346 struct opa_congestion_setting_entry_shadow *entries;
3347 struct cc_state *cc_state;
3348
3349 rcu_read_lock();
3350
3351 cc_state = get_cc_state(ppd);
3352
d125a6c6 3353 if (!cc_state) {
77241056
MM		 3354 rcu_read_unlock();
3355 return reply((struct ib_mad_hdr *)smp);
3356 }
3357
3358 entries = cc_state->cong_setting.entries;
3359 p->port_control = cpu_to_be16(cc_state->cong_setting.port_control);
3360 p->control_map = cpu_to_be32(cc_state->cong_setting.control_map);
3361 for (i = 0; i < OPA_MAX_SLS; i++) {
3362 p->entries[i].ccti_increase = entries[i].ccti_increase;
3363 p->entries[i].ccti_timer = cpu_to_be16(entries[i].ccti_timer);
3364 p->entries[i].trigger_threshold =
3365 entries[i].trigger_threshold;
3366 p->entries[i].ccti_min = entries[i].ccti_min;
3367 }
3368
3369 rcu_read_unlock();
3370
3371 if (resp_len)
3372 *resp_len += sizeof(*p);
3373
3374 return reply((struct ib_mad_hdr *)smp);
3375}
3376
f036780b
DL		 3377/*
3378 * Apply congestion control information stored in the ppd to the
3379 * active structure.
3380 */
3381static void apply_cc_state(struct hfi1_pportdata *ppd)
3382{
3383 struct cc_state *old_cc_state, *new_cc_state;
3384
3385 new_cc_state = kzalloc(sizeof(*new_cc_state), GFP_KERNEL);
3386 if (!new_cc_state)
3387 return;
3388
3389 /*
3390 * Hold the lock for updating *and* to prevent ppd information
3391 * from changing during the update.
3392 */
3393 spin_lock(&ppd->cc_state_lock);
3394
3395 old_cc_state = get_cc_state(ppd);
3396 if (!old_cc_state) {
3397 /* never active, or shutting down */
3398 spin_unlock(&ppd->cc_state_lock);
3399 kfree(new_cc_state);
3400 return;
3401 }
3402
3403 *new_cc_state = *old_cc_state;
3404
3405 new_cc_state->cct.ccti_limit = ppd->total_cct_entry - 1;
3406 memcpy(new_cc_state->cct.entries, ppd->ccti_entries,
3407 ppd->total_cct_entry * sizeof(struct ib_cc_table_entry));
3408
3409 new_cc_state->cong_setting.port_control = IB_CC_CCS_PC_SL_BASED;
3410 new_cc_state->cong_setting.control_map = ppd->cc_sl_control_map;
3411 memcpy(new_cc_state->cong_setting.entries, ppd->congestion_entries,
3412 OPA_MAX_SLS * sizeof(struct opa_congestion_setting_entry));
3413
3414 rcu_assign_pointer(ppd->cc_state, new_cc_state);
3415
3416 spin_unlock(&ppd->cc_state_lock);
3417
3418 call_rcu(&old_cc_state->rcu, cc_state_reclaim);
3419}
3420
77241056
MM		 3421static int __subn_set_opa_cong_setting(struct opa_smp *smp, u32 am, u8 *data,
3422 struct ib_device *ibdev, u8 port,
3423 u32 *resp_len)
3424{
3425 struct opa_congestion_setting_attr *p =
50e5dcbe 3426 (struct opa_congestion_setting_attr *)data;
77241056
MM		 3427 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3428 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3429 struct opa_congestion_setting_entry_shadow *entries;
3430 int i;
3431
f036780b
DL		 3432 /*
3433 * Save details from packet into the ppd. Hold the cc_state_lock so
3434 * our information is consistent with anyone trying to apply the state.
3435 */
3436 spin_lock(&ppd->cc_state_lock);
77241056
MM		 3437 ppd->cc_sl_control_map = be32_to_cpu(p->control_map);
3438
3439 entries = ppd->congestion_entries;
3440 for (i = 0; i < OPA_MAX_SLS; i++) {
3441 entries[i].ccti_increase = p->entries[i].ccti_increase;
3442 entries[i].ccti_timer = be16_to_cpu(p->entries[i].ccti_timer);
3443 entries[i].trigger_threshold =
3444 p->entries[i].trigger_threshold;
3445 entries[i].ccti_min = p->entries[i].ccti_min;
3446 }
f036780b
DL		 3447 spin_unlock(&ppd->cc_state_lock);
3448
3449 /* now apply the information */
3450 apply_cc_state(ppd);
77241056
MM		 3451
3452 return __subn_get_opa_cong_setting(smp, am, data, ibdev, port,
3453 resp_len);
3454}
3455
3456static int __subn_get_opa_hfi1_cong_log(struct opa_smp *smp, u32 am,
3457 u8 *data, struct ib_device *ibdev,
3458 u8 port, u32 *resp_len)
3459{
3460 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3461 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3462 struct opa_hfi1_cong_log *cong_log = (struct opa_hfi1_cong_log *)data;
3463 s64 ts;
3464 int i;
3465
3466 if (am != 0) {
3467 smp->status |= IB_SMP_INVALID_FIELD;
3468 return reply((struct ib_mad_hdr *)smp);
3469 }
3470
b77d713a 3471 spin_lock_irq(&ppd->cc_log_lock);
77241056
MM		 3472
3473 cong_log->log_type = OPA_CC_LOG_TYPE_HFI;
3474 cong_log->congestion_flags = 0;
3475 cong_log->threshold_event_counter =
3476 cpu_to_be16(ppd->threshold_event_counter);
3477 memcpy(cong_log->threshold_cong_event_map,
3478 ppd->threshold_cong_event_map,
3479 sizeof(cong_log->threshold_cong_event_map));
3480 /* keep timestamp in units of 1.024 usec */
3481 ts = ktime_to_ns(ktime_get()) / 1024;
3482 cong_log->current_time_stamp = cpu_to_be32(ts);
3483 for (i = 0; i < OPA_CONG_LOG_ELEMS; i++) {
3484 struct opa_hfi1_cong_log_event_internal *cce =
3485 &ppd->cc_events[ppd->cc_mad_idx++];
3486 if (ppd->cc_mad_idx == OPA_CONG_LOG_ELEMS)
3487 ppd->cc_mad_idx = 0;
3488 /*
3489 * Entries which are older than twice the time
3490 * required to wrap the counter are supposed to
3491 * be zeroed (CA10-49 IBTA, release 1.2.1, V1).
3492 */
3493 if ((u64)(ts - cce->timestamp) > (2 * UINT_MAX))
3494 continue;
3495 memcpy(cong_log->events[i].local_qp_cn_entry, &cce->lqpn, 3);
3496 memcpy(cong_log->events[i].remote_qp_number_cn_entry,
17fb4f29 3497 &cce->rqpn, 3);
77241056
MM		 3498 cong_log->events[i].sl_svc_type_cn_entry =
3499 ((cce->sl & 0x1f) << 3) | (cce->svc_type & 0x7);
3500 cong_log->events[i].remote_lid_cn_entry =
3501 cpu_to_be32(cce->rlid);
3502 cong_log->events[i].timestamp_cn_entry =
3503 cpu_to_be32(cce->timestamp);
3504 }
3505
3506 /*
3507 * Reset threshold_cong_event_map, and threshold_event_counter
3508 * to 0 when log is read.
3509 */
3510 memset(ppd->threshold_cong_event_map, 0x0,
3511 sizeof(ppd->threshold_cong_event_map));
3512 ppd->threshold_event_counter = 0;
3513
b77d713a 3514 spin_unlock_irq(&ppd->cc_log_lock);
77241056
MM		 3515
3516 if (resp_len)
3517 *resp_len += sizeof(struct opa_hfi1_cong_log);
3518
3519 return reply((struct ib_mad_hdr *)smp);
3520}
3521
3522static int __subn_get_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data,
3523 struct ib_device *ibdev, u8 port,
3524 u32 *resp_len)
3525{
3526 struct ib_cc_table_attr *cc_table_attr =
50e5dcbe 3527 (struct ib_cc_table_attr *)data;
77241056
MM		 3528 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3529 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3530 u32 start_block = OPA_AM_START_BLK(am);
3531 u32 n_blocks = OPA_AM_NBLK(am);
3532 struct ib_cc_table_entry_shadow *entries;
3533 int i, j;
3534 u32 sentry, eentry;
3535 struct cc_state *cc_state;
3536
3537 /* sanity check n_blocks, start_block */
3538 if (n_blocks == 0 ||
3539 start_block + n_blocks > ppd->cc_max_table_entries) {
3540 smp->status |= IB_SMP_INVALID_FIELD;
3541 return reply((struct ib_mad_hdr *)smp);
3542 }
3543
3544 rcu_read_lock();
3545
3546 cc_state = get_cc_state(ppd);
3547
d125a6c6 3548 if (!cc_state) {
77241056
MM		 3549 rcu_read_unlock();
3550 return reply((struct ib_mad_hdr *)smp);
3551 }
3552
3553 sentry = start_block * IB_CCT_ENTRIES;
3554 eentry = sentry + (IB_CCT_ENTRIES * n_blocks);
3555
3556 cc_table_attr->ccti_limit = cpu_to_be16(cc_state->cct.ccti_limit);
3557
3558 entries = cc_state->cct.entries;
3559
3560 /* return n_blocks, though the last block may not be full */
3561 for (j = 0, i = sentry; i < eentry; j++, i++)
3562 cc_table_attr->ccti_entries[j].entry =
3563 cpu_to_be16(entries[i].entry);
3564
3565 rcu_read_unlock();
3566
3567 if (resp_len)
8638b77f 3568 *resp_len += sizeof(u16) * (IB_CCT_ENTRIES * n_blocks + 1);
77241056
MM		 3569
3570 return reply((struct ib_mad_hdr *)smp);
3571}
3572
3573void cc_state_reclaim(struct rcu_head *rcu)
3574{
3575 struct cc_state *cc_state = container_of(rcu, struct cc_state, rcu);
3576
3577 kfree(cc_state);
3578}
3579
3580static int __subn_set_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data,
3581 struct ib_device *ibdev, u8 port,
3582 u32 *resp_len)
3583{
50e5dcbe 3584 struct ib_cc_table_attr *p = (struct ib_cc_table_attr *)data;
77241056
MM		 3585 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3586 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3587 u32 start_block = OPA_AM_START_BLK(am);
3588 u32 n_blocks = OPA_AM_NBLK(am);
3589 struct ib_cc_table_entry_shadow *entries;
3590 int i, j;
3591 u32 sentry, eentry;
3592 u16 ccti_limit;
77241056
MM		 3593
3594 /* sanity check n_blocks, start_block */
3595 if (n_blocks == 0 ||
3596 start_block + n_blocks > ppd->cc_max_table_entries) {
3597 smp->status |= IB_SMP_INVALID_FIELD;
3598 return reply((struct ib_mad_hdr *)smp);
3599 }
3600
3601 sentry = start_block * IB_CCT_ENTRIES;
3602 eentry = sentry + ((n_blocks - 1) * IB_CCT_ENTRIES) +
3603 (be16_to_cpu(p->ccti_limit)) % IB_CCT_ENTRIES + 1;
3604
3605 /* sanity check ccti_limit */
3606 ccti_limit = be16_to_cpu(p->ccti_limit);
3607 if (ccti_limit + 1 > eentry) {
3608 smp->status |= IB_SMP_INVALID_FIELD;
3609 return reply((struct ib_mad_hdr *)smp);
3610 }
3611
f036780b
DL		 3612 /*
3613 * Save details from packet into the ppd. Hold the cc_state_lock so
3614 * our information is consistent with anyone trying to apply the state.
3615 */
77241056 3616 spin_lock(&ppd->cc_state_lock);
77241056 3617 ppd->total_cct_entry = ccti_limit + 1;
f036780b 3618 entries = ppd->ccti_entries;
77241056
MM		 3619 for (j = 0, i = sentry; i < eentry; j++, i++)
3620 entries[i].entry = be16_to_cpu(p->ccti_entries[j].entry);
77241056
MM		 3621 spin_unlock(&ppd->cc_state_lock);
3622
f036780b
DL		 3623 /* now apply the information */
3624 apply_cc_state(ppd);
77241056 3625
77241056
MM		 3626 return __subn_get_opa_cc_table(smp, am, data, ibdev, port, resp_len);
3627}
3628
3629struct opa_led_info {
3630 __be32 rsvd_led_mask;
3631 __be32 rsvd;
3632};
3633
3634#define OPA_LED_SHIFT 31
349ac71f 3635#define OPA_LED_MASK BIT(OPA_LED_SHIFT)
77241056
MM		 3636
3637static int __subn_get_opa_led_info(struct opa_smp *smp, u32 am, u8 *data,
3638 struct ib_device *ibdev, u8 port,
3639 u32 *resp_len)
3640{
3641 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
409b1462 3642 struct hfi1_pportdata *ppd = dd->pport;
50e5dcbe 3643 struct opa_led_info *p = (struct opa_led_info *)data;
77241056 3644 u32 nport = OPA_AM_NPORT(am);
409b1462 3645 u32 is_beaconing_active;
77241056 3646
801cfd6d 3647 if (nport != 1) {
77241056
MM		 3648 smp->status |= IB_SMP_INVALID_FIELD;
3649 return reply((struct ib_mad_hdr *)smp);
3650 }
3651
409b1462 3652 /*
2243472e
EH		 3653 * This pairs with the memory barrier in hfi1_start_led_override to
3654 * ensure that we read the correct state of LED beaconing represented
3655 * by led_override_timer_active
409b1462 3656 */
2243472e 3657 smp_rmb();
409b1462
EH		 3658 is_beaconing_active = !!atomic_read(&ppd->led_override_timer_active);
3659 p->rsvd_led_mask = cpu_to_be32(is_beaconing_active << OPA_LED_SHIFT);
77241056
MM		 3660
3661 if (resp_len)
3662 *resp_len += sizeof(struct opa_led_info);
3663
3664 return reply((struct ib_mad_hdr *)smp);
3665}
3666
3667static int __subn_set_opa_led_info(struct opa_smp *smp, u32 am, u8 *data,
3668 struct ib_device *ibdev, u8 port,
3669 u32 *resp_len)
3670{
3671 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
50e5dcbe 3672 struct opa_led_info *p = (struct opa_led_info *)data;
77241056
MM		 3673 u32 nport = OPA_AM_NPORT(am);
3674 int on = !!(be32_to_cpu(p->rsvd_led_mask) & OPA_LED_MASK);
3675
801cfd6d 3676 if (nport != 1) {
77241056
MM		 3677 smp->status |= IB_SMP_INVALID_FIELD;
3678 return reply((struct ib_mad_hdr *)smp);
3679 }
3680
91ab4ed3 3681 if (on)
2243472e 3682 hfi1_start_led_override(dd->pport, 2000, 1500);
91ab4ed3 3683 else
2243472e 3684 shutdown_led_override(dd->pport);
77241056
MM		 3685
3686 return __subn_get_opa_led_info(smp, am, data, ibdev, port, resp_len);
3687}
3688
3689static int subn_get_opa_sma(__be16 attr_id, struct opa_smp *smp, u32 am,
3690 u8 *data, struct ib_device *ibdev, u8 port,
3691 u32 *resp_len)
3692{
3693 int ret;
3694 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3695
3696 switch (attr_id) {
3697 case IB_SMP_ATTR_NODE_DESC:
3698 ret = __subn_get_opa_nodedesc(smp, am, data, ibdev, port,
3699 resp_len);
3700 break;
3701 case IB_SMP_ATTR_NODE_INFO:
3702 ret = __subn_get_opa_nodeinfo(smp, am, data, ibdev, port,
3703 resp_len);
3704 break;
3705 case IB_SMP_ATTR_PORT_INFO:
3706 ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port,
3707 resp_len);
3708 break;
3709 case IB_SMP_ATTR_PKEY_TABLE:
3710 ret = __subn_get_opa_pkeytable(smp, am, data, ibdev, port,
3711 resp_len);
3712 break;
3713 case OPA_ATTRIB_ID_SL_TO_SC_MAP:
3714 ret = __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port,
3715 resp_len);
3716 break;
3717 case OPA_ATTRIB_ID_SC_TO_SL_MAP:
3718 ret = __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port,
3719 resp_len);
3720 break;
3721 case OPA_ATTRIB_ID_SC_TO_VLT_MAP:
3722 ret = __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port,
3723 resp_len);
3724 break;
3725 case OPA_ATTRIB_ID_SC_TO_VLNT_MAP:
3726 ret = __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port,
17fb4f29 3727 resp_len);
77241056
MM		 3728 break;
3729 case OPA_ATTRIB_ID_PORT_STATE_INFO:
3730 ret = __subn_get_opa_psi(smp, am, data, ibdev, port,
3731 resp_len);
3732 break;
3733 case OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE:
3734 ret = __subn_get_opa_bct(smp, am, data, ibdev, port,
3735 resp_len);
3736 break;
3737 case OPA_ATTRIB_ID_CABLE_INFO:
3738 ret = __subn_get_opa_cable_info(smp, am, data, ibdev, port,
3739 resp_len);
3740 break;
3741 case IB_SMP_ATTR_VL_ARB_TABLE:
3742 ret = __subn_get_opa_vl_arb(smp, am, data, ibdev, port,
3743 resp_len);
3744 break;
3745 case OPA_ATTRIB_ID_CONGESTION_INFO:
3746 ret = __subn_get_opa_cong_info(smp, am, data, ibdev, port,
3747 resp_len);
3748 break;
3749 case OPA_ATTRIB_ID_HFI_CONGESTION_SETTING:
3750 ret = __subn_get_opa_cong_setting(smp, am, data, ibdev,
3751 port, resp_len);
3752 break;
3753 case OPA_ATTRIB_ID_HFI_CONGESTION_LOG:
3754 ret = __subn_get_opa_hfi1_cong_log(smp, am, data, ibdev,
3755 port, resp_len);
3756 break;
3757 case OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE:
3758 ret = __subn_get_opa_cc_table(smp, am, data, ibdev, port,
3759 resp_len);
3760 break;
3761 case IB_SMP_ATTR_LED_INFO:
3762 ret = __subn_get_opa_led_info(smp, am, data, ibdev, port,
3763 resp_len);
3764 break;
3765 case IB_SMP_ATTR_SM_INFO:
4eb06882 3766 if (ibp->rvp.port_cap_flags & IB_PORT_SM_DISABLED)
77241056 3767 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
4eb06882 3768 if (ibp->rvp.port_cap_flags & IB_PORT_SM)
77241056
MM		 3769 return IB_MAD_RESULT_SUCCESS;
3770 /* FALLTHROUGH */
3771 default:
3772 smp->status |= IB_SMP_UNSUP_METH_ATTR;
3773 ret = reply((struct ib_mad_hdr *)smp);
3774 break;
3775 }
3776 return ret;
3777}
3778
3779static int subn_set_opa_sma(__be16 attr_id, struct opa_smp *smp, u32 am,
3780 u8 *data, struct ib_device *ibdev, u8 port,
3781 u32 *resp_len)
3782{
3783 int ret;
3784 struct hfi1_ibport *ibp = to_iport(ibdev, port);
3785
3786 switch (attr_id) {
3787 case IB_SMP_ATTR_PORT_INFO:
3788 ret = __subn_set_opa_portinfo(smp, am, data, ibdev, port,
3789 resp_len);
3790 break;
3791 case IB_SMP_ATTR_PKEY_TABLE:
3792 ret = __subn_set_opa_pkeytable(smp, am, data, ibdev, port,
3793 resp_len);
3794 break;
3795 case OPA_ATTRIB_ID_SL_TO_SC_MAP:
3796 ret = __subn_set_opa_sl_to_sc(smp, am, data, ibdev, port,
3797 resp_len);
3798 break;
3799 case OPA_ATTRIB_ID_SC_TO_SL_MAP:
3800 ret = __subn_set_opa_sc_to_sl(smp, am, data, ibdev, port,
3801 resp_len);
3802 break;
3803 case OPA_ATTRIB_ID_SC_TO_VLT_MAP:
3804 ret = __subn_set_opa_sc_to_vlt(smp, am, data, ibdev, port,
3805 resp_len);
3806 break;
3807 case OPA_ATTRIB_ID_SC_TO_VLNT_MAP:
3808 ret = __subn_set_opa_sc_to_vlnt(smp, am, data, ibdev, port,
17fb4f29 3809 resp_len);
77241056
MM		 3810 break;
3811 case OPA_ATTRIB_ID_PORT_STATE_INFO:
3812 ret = __subn_set_opa_psi(smp, am, data, ibdev, port,
3813 resp_len);
3814 break;
3815 case OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE:
3816 ret = __subn_set_opa_bct(smp, am, data, ibdev, port,
3817 resp_len);
3818 break;
3819 case IB_SMP_ATTR_VL_ARB_TABLE:
3820 ret = __subn_set_opa_vl_arb(smp, am, data, ibdev, port,
3821 resp_len);
3822 break;
3823 case OPA_ATTRIB_ID_HFI_CONGESTION_SETTING:
3824 ret = __subn_set_opa_cong_setting(smp, am, data, ibdev,
3825 port, resp_len);
3826 break;
3827 case OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE:
3828 ret = __subn_set_opa_cc_table(smp, am, data, ibdev, port,
3829 resp_len);
3830 break;
3831 case IB_SMP_ATTR_LED_INFO:
3832 ret = __subn_set_opa_led_info(smp, am, data, ibdev, port,
3833 resp_len);
3834 break;
3835 case IB_SMP_ATTR_SM_INFO:
4eb06882 3836 if (ibp->rvp.port_cap_flags & IB_PORT_SM_DISABLED)
77241056 3837 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
4eb06882 3838 if (ibp->rvp.port_cap_flags & IB_PORT_SM)
77241056
MM		 3839 return IB_MAD_RESULT_SUCCESS;
3840 /* FALLTHROUGH */
3841 default:
3842 smp->status |= IB_SMP_UNSUP_METH_ATTR;
3843 ret = reply((struct ib_mad_hdr *)smp);
3844 break;
3845 }
3846 return ret;
3847}
3848
3849static inline void set_aggr_error(struct opa_aggregate *ag)
3850{
3851 ag->err_reqlength |= cpu_to_be16(0x8000);
3852}
3853
3854static int subn_get_opa_aggregate(struct opa_smp *smp,
3855 struct ib_device *ibdev, u8 port,
3856 u32 *resp_len)
3857{
3858 int i;
3859 u32 num_attr = be32_to_cpu(smp->attr_mod) & 0x000000ff;
3860 u8 *next_smp = opa_get_smp_data(smp);
3861
3862 if (num_attr < 1 || num_attr > 117) {
3863 smp->status |= IB_SMP_INVALID_FIELD;
3864 return reply((struct ib_mad_hdr *)smp);
3865 }
3866
3867 for (i = 0; i < num_attr; i++) {
3868 struct opa_aggregate *agg;
3869 size_t agg_data_len;
3870 size_t agg_size;
3871 u32 am;
3872
3873 agg = (struct opa_aggregate *)next_smp;
3874 agg_data_len = (be16_to_cpu(agg->err_reqlength) & 0x007f) * 8;
3875 agg_size = sizeof(*agg) + agg_data_len;
3876 am = be32_to_cpu(agg->attr_mod);
3877
3878 *resp_len += agg_size;
3879
3880 if (next_smp + agg_size > ((u8 *)smp) + sizeof(*smp)) {
3881 smp->status |= IB_SMP_INVALID_FIELD;
3882 return reply((struct ib_mad_hdr *)smp);
3883 }
3884
3885 /* zero the payload for this segment */
3886 memset(next_smp + sizeof(*agg), 0, agg_data_len);
3887
50e5dcbe 3888 (void)subn_get_opa_sma(agg->attr_id, smp, am, agg->data,
77241056
MM		 3889 ibdev, port, NULL);
3890 if (smp->status & ~IB_SMP_DIRECTION) {
3891 set_aggr_error(agg);
3892 return reply((struct ib_mad_hdr *)smp);
3893 }
3894 next_smp += agg_size;
77241056
MM		 3895 }
3896
3897 return reply((struct ib_mad_hdr *)smp);
3898}
3899
3900static int subn_set_opa_aggregate(struct opa_smp *smp,
3901 struct ib_device *ibdev, u8 port,
3902 u32 *resp_len)
3903{
3904 int i;
3905 u32 num_attr = be32_to_cpu(smp->attr_mod) & 0x000000ff;
3906 u8 *next_smp = opa_get_smp_data(smp);
3907
3908 if (num_attr < 1 || num_attr > 117) {
3909 smp->status |= IB_SMP_INVALID_FIELD;
3910 return reply((struct ib_mad_hdr *)smp);
3911 }
3912
3913 for (i = 0; i < num_attr; i++) {
3914 struct opa_aggregate *agg;
3915 size_t agg_data_len;
3916 size_t agg_size;
3917 u32 am;
3918
3919 agg = (struct opa_aggregate *)next_smp;
3920 agg_data_len = (be16_to_cpu(agg->err_reqlength) & 0x007f) * 8;
3921 agg_size = sizeof(*agg) + agg_data_len;
3922 am = be32_to_cpu(agg->attr_mod);
3923
3924 *resp_len += agg_size;
3925
3926 if (next_smp + agg_size > ((u8 *)smp) + sizeof(*smp)) {
3927 smp->status |= IB_SMP_INVALID_FIELD;
3928 return reply((struct ib_mad_hdr *)smp);
3929 }
3930
50e5dcbe 3931 (void)subn_set_opa_sma(agg->attr_id, smp, am, agg->data,
77241056
MM		 3932 ibdev, port, NULL);
3933 if (smp->status & ~IB_SMP_DIRECTION) {
3934 set_aggr_error(agg);
3935 return reply((struct ib_mad_hdr *)smp);
3936 }
3937 next_smp += agg_size;
77241056
MM		 3938 }
3939
3940 return reply((struct ib_mad_hdr *)smp);
3941}
3942
3943/*
3944 * OPAv1 specifies that, on the transition to link up, these counters
3945 * are cleared:
3946 * PortRcvErrors [*]
3947 * LinkErrorRecovery
3948 * LocalLinkIntegrityErrors
3949 * ExcessiveBufferOverruns [*]
3950 *
3951 * [*] Error info associated with these counters is retained, but the
3952 * error info status is reset to 0.
3953 */
3954void clear_linkup_counters(struct hfi1_devdata *dd)
3955{
3956 /* PortRcvErrors */
3957 write_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL, 0);
3958 dd->err_info_rcvport.status_and_code &= ~OPA_EI_STATUS_SMASK;
3959 /* LinkErrorRecovery */
3960 write_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL, 0);
3961 write_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, CNTR_INVALID_VL, 0);
3962 /* LocalLinkIntegrityErrors */
3963 write_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL, 0);
3964 write_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL, 0);
3965 /* ExcessiveBufferOverruns */
3966 write_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL, 0);
3967 dd->rcv_ovfl_cnt = 0;
3968 dd->err_info_xmit_constraint.status &= ~OPA_EI_STATUS_SMASK;
3969}
3970
3971/*
3972 * is_local_mad() returns 1 if 'mad' is sent from, and destined to the
3973 * local node, 0 otherwise.
3974 */
3975static int is_local_mad(struct hfi1_ibport *ibp, const struct opa_mad *mad,
3976 const struct ib_wc *in_wc)
3977{
3978 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
3979 const struct opa_smp *smp = (const struct opa_smp *)mad;
3980
3981 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
3982 return (smp->hop_cnt == 0 &&
3983 smp->route.dr.dr_slid == OPA_LID_PERMISSIVE &&
3984 smp->route.dr.dr_dlid == OPA_LID_PERMISSIVE);
3985 }
3986
3987 return (in_wc->slid == ppd->lid);
3988}
3989
3990/*
3991 * opa_local_smp_check() should only be called on MADs for which
3992 * is_local_mad() returns true. It applies the SMP checks that are
3993 * specific to SMPs which are sent from, and destined to this node.
3994 * opa_local_smp_check() returns 0 if the SMP passes its checks, 1
3995 * otherwise.
3996 *
3997 * SMPs which arrive from other nodes are instead checked by
3998 * opa_smp_check().
3999 */
4000static int opa_local_smp_check(struct hfi1_ibport *ibp,
4001 const struct ib_wc *in_wc)
4002{
4003 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
4004 u16 slid = in_wc->slid;
4005 u16 pkey;
4006
4007 if (in_wc->pkey_index >= ARRAY_SIZE(ppd->pkeys))
4008 return 1;
4009
4010 pkey = ppd->pkeys[in_wc->pkey_index];
4011 /*
4012 * We need to do the "node-local" checks specified in OPAv1,
4013 * rev 0.90, section 9.10.26, which are:
4014 * - pkey is 0x7fff, or 0xffff
4015 * - Source QPN == 0 || Destination QPN == 0
4016 * - the MAD header's management class is either
4017 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE or
4018 * IB_MGMT_CLASS_SUBN_LID_ROUTED
4019 * - SLID != 0
4020 *
4021 * However, we know (and so don't need to check again) that,
4022 * for local SMPs, the MAD stack passes MADs with:
4023 * - Source QPN of 0
4024 * - MAD mgmt_class is IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
4025 * - SLID is either: OPA_LID_PERMISSIVE (0xFFFFFFFF), or
4026 * our own port's lid
4027 *
4028 */
4029 if (pkey == LIM_MGMT_P_KEY || pkey == FULL_MGMT_P_KEY)
4030 return 0;
4031 ingress_pkey_table_fail(ppd, pkey, slid);
4032 return 1;
4033}
4034
4035static int process_subn_opa(struct ib_device *ibdev, int mad_flags,
4036 u8 port, const struct opa_mad *in_mad,
4037 struct opa_mad *out_mad,
4038 u32 *resp_len)
4039{
4040 struct opa_smp *smp = (struct opa_smp *)out_mad;
4041 struct hfi1_ibport *ibp = to_iport(ibdev, port);
4042 u8 *data;
4043 u32 am;
4044 __be16 attr_id;
4045 int ret;
4046
4047 *out_mad = *in_mad;
4048 data = opa_get_smp_data(smp);
4049
4050 am = be32_to_cpu(smp->attr_mod);
4051 attr_id = smp->attr_id;
4052 if (smp->class_version != OPA_SMI_CLASS_VERSION) {
4053 smp->status |= IB_SMP_UNSUP_VERSION;
4054 ret = reply((struct ib_mad_hdr *)smp);
5950e9b1 4055 return ret;
77241056
MM		 4056 }
4057 ret = check_mkey(ibp, (struct ib_mad_hdr *)smp, mad_flags, smp->mkey,
4058 smp->route.dr.dr_slid, smp->route.dr.return_path,
4059 smp->hop_cnt);
4060 if (ret) {
4061 u32 port_num = be32_to_cpu(smp->attr_mod);
4062
4063 /*
4064 * If this is a get/set portinfo, we already check the
4065 * M_Key if the MAD is for another port and the M_Key
4066 * is OK on the receiving port. This check is needed
4067 * to increment the error counters when the M_Key
4068 * fails to match on *both* ports.
4069 */
4070 if (attr_id == IB_SMP_ATTR_PORT_INFO &&
4071 (smp->method == IB_MGMT_METHOD_GET ||
4072 smp->method == IB_MGMT_METHOD_SET) &&
4073 port_num && port_num <= ibdev->phys_port_cnt &&
4074 port != port_num)
50e5dcbe 4075 (void)check_mkey(to_iport(ibdev, port_num),
77241056
MM		 4076 (struct ib_mad_hdr *)smp, 0,
4077 smp->mkey, smp->route.dr.dr_slid,
4078 smp->route.dr.return_path,
4079 smp->hop_cnt);
4080 ret = IB_MAD_RESULT_FAILURE;
5950e9b1 4081 return ret;
77241056
MM		 4082 }
4083
4084 *resp_len = opa_get_smp_header_size(smp);
4085
4086 switch (smp->method) {
4087 case IB_MGMT_METHOD_GET:
4088 switch (attr_id) {
4089 default:
4090 clear_opa_smp_data(smp);
4091 ret = subn_get_opa_sma(attr_id, smp, am, data,
4092 ibdev, port, resp_len);
5950e9b1 4093 break;
77241056
MM		 4094 case OPA_ATTRIB_ID_AGGREGATE:
4095 ret = subn_get_opa_aggregate(smp, ibdev, port,
4096 resp_len);
5950e9b1 4097 break;
77241056 4098 }
5950e9b1 4099 break;
77241056
MM		 4100 case IB_MGMT_METHOD_SET:
4101 switch (attr_id) {
4102 default:
4103 ret = subn_set_opa_sma(attr_id, smp, am, data,
4104 ibdev, port, resp_len);
5950e9b1 4105 break;
77241056
MM		 4106 case OPA_ATTRIB_ID_AGGREGATE:
4107 ret = subn_set_opa_aggregate(smp, ibdev, port,
4108 resp_len);
5950e9b1 4109 break;
77241056 4110 }
5950e9b1 4111 break;
77241056
MM		 4112 case IB_MGMT_METHOD_TRAP:
4113 case IB_MGMT_METHOD_REPORT:
4114 case IB_MGMT_METHOD_REPORT_RESP:
4115 case IB_MGMT_METHOD_GET_RESP:
4116 /*
4117 * The ib_mad module will call us to process responses
4118 * before checking for other consumers.
4119 * Just tell the caller to process it normally.
4120 */
4121 ret = IB_MAD_RESULT_SUCCESS;
5950e9b1 4122 break;
77241056
MM		 4123 default:
4124 smp->status |= IB_SMP_UNSUP_METHOD;
4125 ret = reply((struct ib_mad_hdr *)smp);
5950e9b1 4126 break;
77241056
MM		 4127 }
4128
77241056
MM		 4129 return ret;
4130}
4131
4132static int process_subn(struct ib_device *ibdev, int mad_flags,
4133 u8 port, const struct ib_mad *in_mad,
4134 struct ib_mad *out_mad)
4135{
4136 struct ib_smp *smp = (struct ib_smp *)out_mad;
4137 struct hfi1_ibport *ibp = to_iport(ibdev, port);
4138 int ret;
4139
4140 *out_mad = *in_mad;
4141 if (smp->class_version != 1) {
4142 smp->status |= IB_SMP_UNSUP_VERSION;
4143 ret = reply((struct ib_mad_hdr *)smp);
5950e9b1 4144 return ret;
77241056
MM		 4145 }
4146
4147 ret = check_mkey(ibp, (struct ib_mad_hdr *)smp, mad_flags,
4148 smp->mkey, (__force __be32)smp->dr_slid,
4149 smp->return_path, smp->hop_cnt);
4150 if (ret) {
4151 u32 port_num = be32_to_cpu(smp->attr_mod);
4152
4153 /*
4154 * If this is a get/set portinfo, we already check the
4155 * M_Key if the MAD is for another port and the M_Key
4156 * is OK on the receiving port. This check is needed
4157 * to increment the error counters when the M_Key
4158 * fails to match on *both* ports.
4159 */
4160 if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO &&
4161 (smp->method == IB_MGMT_METHOD_GET ||
4162 smp->method == IB_MGMT_METHOD_SET) &&
4163 port_num && port_num <= ibdev->phys_port_cnt &&
4164 port != port_num)
50e5dcbe 4165 (void)check_mkey(to_iport(ibdev, port_num),
17fb4f29
JJ		 4166 (struct ib_mad_hdr *)smp, 0,
4167 smp->mkey,
4168 (__force __be32)smp->dr_slid,
4169 smp->return_path, smp->hop_cnt);
77241056 4170 ret = IB_MAD_RESULT_FAILURE;
5950e9b1 4171 return ret;
77241056
MM		 4172 }
4173
4174 switch (smp->method) {
4175 case IB_MGMT_METHOD_GET:
4176 switch (smp->attr_id) {
4177 case IB_SMP_ATTR_NODE_INFO:
4178 ret = subn_get_nodeinfo(smp, ibdev, port);
5950e9b1 4179 break;
77241056
MM		 4180 default:
4181 smp->status |= IB_SMP_UNSUP_METH_ATTR;
4182 ret = reply((struct ib_mad_hdr *)smp);
5950e9b1 4183 break;
77241056 4184 }
5950e9b1 4185 break;
77241056
MM		 4186 }
4187
77241056
MM		 4188 return ret;
4189}
4190
b8d114eb
SS		 4191static int process_perf(struct ib_device *ibdev, u8 port,
4192 const struct ib_mad *in_mad,
4193 struct ib_mad *out_mad)
4194{
4195 struct ib_pma_mad *pmp = (struct ib_pma_mad *)out_mad;
4196 struct ib_class_port_info *cpi = (struct ib_class_port_info *)
4197 &pmp->data;
4198 int ret = IB_MAD_RESULT_FAILURE;
4199
4200 *out_mad = *in_mad;
4201 if (pmp->mad_hdr.class_version != 1) {
4202 pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION;
4203 ret = reply((struct ib_mad_hdr *)pmp);
4204 return ret;
4205 }
4206
4207 switch (pmp->mad_hdr.method) {
4208 case IB_MGMT_METHOD_GET:
4209 switch (pmp->mad_hdr.attr_id) {
4210 case IB_PMA_PORT_COUNTERS:
4211 ret = pma_get_ib_portcounters(pmp, ibdev, port);
4212 break;
4213 case IB_PMA_PORT_COUNTERS_EXT:
4214 ret = pma_get_ib_portcounters_ext(pmp, ibdev, port);
4215 break;
4216 case IB_PMA_CLASS_PORT_INFO:
4217 cpi->capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;
4218 ret = reply((struct ib_mad_hdr *)pmp);
4219 break;
4220 default:
4221 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
4222 ret = reply((struct ib_mad_hdr *)pmp);
4223 break;
4224 }
4225 break;
4226
4227 case IB_MGMT_METHOD_SET:
4228 if (pmp->mad_hdr.attr_id) {
4229 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
4230 ret = reply((struct ib_mad_hdr *)pmp);
4231 }
4232 break;
4233
4234 case IB_MGMT_METHOD_TRAP:
4235 case IB_MGMT_METHOD_GET_RESP:
4236 /*
4237 * The ib_mad module will call us to process responses
4238 * before checking for other consumers.
4239 * Just tell the caller to process it normally.
4240 */
4241 ret = IB_MAD_RESULT_SUCCESS;
4242 break;
4243
4244 default:
4245 pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD;
4246 ret = reply((struct ib_mad_hdr *)pmp);
4247 break;
77241056
MM		 4248 }
4249
77241056
MM		 4250 return ret;
4251}
4252
4253static int process_perf_opa(struct ib_device *ibdev, u8 port,
4254 const struct opa_mad *in_mad,
4255 struct opa_mad *out_mad, u32 *resp_len)
4256{
4257 struct opa_pma_mad *pmp = (struct opa_pma_mad *)out_mad;
4258 int ret;
4259
4260 *out_mad = *in_mad;
4261
4262 if (pmp->mad_hdr.class_version != OPA_SMI_CLASS_VERSION) {
4263 pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION;
4264 return reply((struct ib_mad_hdr *)pmp);
4265 }
4266
4267 *resp_len = sizeof(pmp->mad_hdr);
4268
4269 switch (pmp->mad_hdr.method) {
4270 case IB_MGMT_METHOD_GET:
4271 switch (pmp->mad_hdr.attr_id) {
4272 case IB_PMA_CLASS_PORT_INFO:
4273 ret = pma_get_opa_classportinfo(pmp, ibdev, resp_len);
5950e9b1 4274 break;
77241056
MM		 4275 case OPA_PM_ATTRIB_ID_PORT_STATUS:
4276 ret = pma_get_opa_portstatus(pmp, ibdev, port,
17fb4f29 4277 resp_len);
5950e9b1 4278 break;
77241056
MM		 4279 case OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS:
4280 ret = pma_get_opa_datacounters(pmp, ibdev, port,
17fb4f29 4281 resp_len);
5950e9b1 4282 break;
77241056
MM		 4283 case OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS:
4284 ret = pma_get_opa_porterrors(pmp, ibdev, port,
17fb4f29 4285 resp_len);
5950e9b1 4286 break;
77241056
MM		 4287 case OPA_PM_ATTRIB_ID_ERROR_INFO:
4288 ret = pma_get_opa_errorinfo(pmp, ibdev, port,
17fb4f29 4289 resp_len);
5950e9b1 4290 break;
77241056
MM		 4291 default:
4292 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
4293 ret = reply((struct ib_mad_hdr *)pmp);
5950e9b1 4294 break;
77241056 4295 }
5950e9b1 4296 break;
77241056
MM		 4297
4298 case IB_MGMT_METHOD_SET:
4299 switch (pmp->mad_hdr.attr_id) {
4300 case OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS:
4301 ret = pma_set_opa_portstatus(pmp, ibdev, port,
17fb4f29 4302 resp_len);
5950e9b1 4303 break;
77241056
MM		 4304 case OPA_PM_ATTRIB_ID_ERROR_INFO:
4305 ret = pma_set_opa_errorinfo(pmp, ibdev, port,
17fb4f29 4306 resp_len);
5950e9b1 4307 break;
77241056
MM		 4308 default:
4309 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR;
4310 ret = reply((struct ib_mad_hdr *)pmp);
5950e9b1 4311 break;
77241056 4312 }
5950e9b1 4313 break;
77241056
MM		 4314
4315 case IB_MGMT_METHOD_TRAP:
4316 case IB_MGMT_METHOD_GET_RESP:
4317 /*
4318 * The ib_mad module will call us to process responses
4319 * before checking for other consumers.
4320 * Just tell the caller to process it normally.
4321 */
4322 ret = IB_MAD_RESULT_SUCCESS;
5950e9b1 4323 break;
77241056
MM		 4324
4325 default:
4326 pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD;
4327 ret = reply((struct ib_mad_hdr *)pmp);
5950e9b1 4328 break;
77241056
MM		 4329 }
4330
77241056
MM		 4331 return ret;
4332}
4333
4334static int hfi1_process_opa_mad(struct ib_device *ibdev, int mad_flags,
a724648e
JB		 4335 u8 port, const struct ib_wc *in_wc,
4336 const struct ib_grh *in_grh,
4337 const struct opa_mad *in_mad,
4338 struct opa_mad *out_mad, size_t *out_mad_size,
4339 u16 *out_mad_pkey_index)
77241056
MM		 4340{
4341 int ret;
4342 int pkey_idx;
4343 u32 resp_len = 0;
4344 struct hfi1_ibport *ibp = to_iport(ibdev, port);
4345
4346 pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY);
4347 if (pkey_idx < 0) {
4348 pr_warn("failed to find limited mgmt pkey, defaulting 0x%x\n",
4349 hfi1_get_pkey(ibp, 1));
4350 pkey_idx = 1;
4351 }
4352 *out_mad_pkey_index = (u16)pkey_idx;
4353
4354 switch (in_mad->mad_hdr.mgmt_class) {
4355 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
4356 case IB_MGMT_CLASS_SUBN_LID_ROUTED:
4357 if (is_local_mad(ibp, in_mad, in_wc)) {
4358 ret = opa_local_smp_check(ibp, in_wc);
4359 if (ret)
4360 return IB_MAD_RESULT_FAILURE;
4361 }
4362 ret = process_subn_opa(ibdev, mad_flags, port, in_mad,
4363 out_mad, &resp_len);
4364 goto bail;
4365 case IB_MGMT_CLASS_PERF_MGMT:
4366 ret = process_perf_opa(ibdev, port, in_mad, out_mad,
4367 &resp_len);
4368 goto bail;
4369
4370 default:
4371 ret = IB_MAD_RESULT_SUCCESS;
4372 }
4373
4374bail:
4375 if (ret & IB_MAD_RESULT_REPLY)
4376 *out_mad_size = round_up(resp_len, 8);
4377 else if (ret & IB_MAD_RESULT_SUCCESS)
4378 *out_mad_size = in_wc->byte_len - sizeof(struct ib_grh);
4379
4380 return ret;
4381}
4382
4383static int hfi1_process_ib_mad(struct ib_device *ibdev, int mad_flags, u8 port,
4384 const struct ib_wc *in_wc,
4385 const struct ib_grh *in_grh,
4386 const struct ib_mad *in_mad,
4387 struct ib_mad *out_mad)
4388{
4389 int ret;
4390
4391 switch (in_mad->mad_hdr.mgmt_class) {
4392 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
4393 case IB_MGMT_CLASS_SUBN_LID_ROUTED:
4394 ret = process_subn(ibdev, mad_flags, port, in_mad, out_mad);
5950e9b1 4395 break;
b8d114eb
SS		 4396 case IB_MGMT_CLASS_PERF_MGMT:
4397 ret = process_perf(ibdev, port, in_mad, out_mad);
4398 break;
77241056
MM		 4399 default:
4400 ret = IB_MAD_RESULT_SUCCESS;
5950e9b1 4401 break;
77241056
MM		 4402 }
4403
77241056
MM		 4404 return ret;
4405}
4406
4407/**
4408 * hfi1_process_mad - process an incoming MAD packet
4409 * @ibdev: the infiniband device this packet came in on
4410 * @mad_flags: MAD flags
4411 * @port: the port number this packet came in on
4412 * @in_wc: the work completion entry for this packet
4413 * @in_grh: the global route header for this packet
4414 * @in_mad: the incoming MAD
4415 * @out_mad: any outgoing MAD reply
4416 *
4417 * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not
4418 * interested in processing.
4419 *
4420 * Note that the verbs framework has already done the MAD sanity checks,
4421 * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
4422 * MADs.
4423 *
4424 * This is called by the ib_mad module.
4425 */
4426int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u8 port,
4427 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
4428 const struct ib_mad_hdr *in_mad, size_t in_mad_size,
4429 struct ib_mad_hdr *out_mad, size_t *out_mad_size,
4430 u16 *out_mad_pkey_index)
4431{
4432 switch (in_mad->base_version) {
4433 case OPA_MGMT_BASE_VERSION:
4434 if (unlikely(in_mad_size != sizeof(struct opa_mad))) {
4435 dev_err(ibdev->dma_device, "invalid in_mad_size\n");
4436 return IB_MAD_RESULT_FAILURE;
4437 }
4438 return hfi1_process_opa_mad(ibdev, mad_flags, port,
4439 in_wc, in_grh,
4440 (struct opa_mad *)in_mad,
4441 (struct opa_mad *)out_mad,
4442 out_mad_size,
4443 out_mad_pkey_index);
4444 case IB_MGMT_BASE_VERSION:
4445 return hfi1_process_ib_mad(ibdev, mad_flags, port,
4446 in_wc, in_grh,
4447 (const struct ib_mad *)in_mad,
4448 (struct ib_mad *)out_mad);
4449 default:
4450 break;
4451 }
4452
4453 return IB_MAD_RESULT_FAILURE;
4454}
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