1 /* 2 * Copyright(c) 2015, 2016 Intel Corporation. 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 * 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 * 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" 55 #include "qp.h" 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 61 static 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 73 static 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 81 void 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 91 static 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; 95 struct opa_smp *smp; 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; 101 102 agent = ibp->rvp.send_agent; 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 */ 111 if (ibp->rvp.trap_timeout && time_before(jiffies, 112 ibp->rvp.trap_timeout)) 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; 129 smp->base_version = OPA_MGMT_BASE_VERSION; 130 smp->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 131 smp->class_version = OPA_SM_CLASS_VERSION; 132 smp->method = IB_MGMT_METHOD_TRAP; 133 ibp->rvp.tid++; 134 smp->tid = cpu_to_be64(ibp->rvp.tid); 135 smp->attr_id = IB_SMP_ATTR_NOTICE; 136 /* o14-1: smp->mkey = 0; */ 137 memcpy(smp->route.lid.data, data, len); 138 139 spin_lock_irqsave(&ibp->rvp.lock, flags); 140 if (!ibp->rvp.sm_ah) { 141 if (ibp->rvp.sm_lid != be16_to_cpu(IB_LID_PERMISSIVE)) { 142 struct ib_ah *ah; 143 144 ah = hfi1_create_qp0_ah(ibp, ibp->rvp.sm_lid); 145 if (IS_ERR(ah)) { 146 ret = PTR_ERR(ah); 147 } else { 148 send_buf->ah = ah; 149 ibp->rvp.sm_ah = ibah_to_rvtah(ah); 150 ret = 0; 151 } 152 } else { 153 ret = -EINVAL; 154 } 155 } else { 156 send_buf->ah = &ibp->rvp.sm_ah->ibah; 157 ret = 0; 158 } 159 spin_unlock_irqrestore(&ibp->rvp.lock, flags); 160 161 if (!ret) 162 ret = ib_post_send_mad(send_buf, NULL); 163 if (!ret) { 164 /* 4.096 usec. */ 165 timeout = (4096 * (1UL << ibp->rvp.subnet_timeout)) / 1000; 166 ibp->rvp.trap_timeout = jiffies + usecs_to_jiffies(timeout); 167 } else { 168 ib_free_send_mad(send_buf); 169 ibp->rvp.trap_timeout = 0; 170 } 171 } 172 173 /* 174 * Send a bad [PQ]_Key trap (ch. 14.3.8). 175 */ 176 void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl, 177 u32 qp1, u32 qp2, u16 lid1, u16 lid2) 178 { 179 struct opa_mad_notice_attr data; 180 u32 lid = ppd_from_ibp(ibp)->lid; 181 u32 _lid1 = lid1; 182 u32 _lid2 = lid2; 183 184 memset(&data, 0, sizeof(data)); 185 186 if (trap_num == OPA_TRAP_BAD_P_KEY) 187 ibp->rvp.pkey_violations++; 188 else 189 ibp->rvp.qkey_violations++; 190 ibp->rvp.n_pkt_drops++; 191 192 /* Send violation trap */ 193 data.generic_type = IB_NOTICE_TYPE_SECURITY; 194 data.prod_type_lsb = IB_NOTICE_PROD_CA; 195 data.trap_num = trap_num; 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); 203 204 send_trap(ibp, &data, sizeof(data)); 205 } 206 207 /* 208 * Send a bad M_Key trap (ch. 14.3.9). 209 */ 210 static 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 { 213 struct opa_mad_notice_attr data; 214 u32 lid = ppd_from_ibp(ibp)->lid; 215 216 memset(&data, 0, sizeof(data)); 217 /* Send violation trap */ 218 data.generic_type = IB_NOTICE_TYPE_SECURITY; 219 data.prod_type_lsb = IB_NOTICE_PROD_CA; 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; 227 if (mad->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 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 |= 232 IB_NOTICE_TRAP_DR_TRUNC; 233 hop_cnt = ARRAY_SIZE(data.ntc_256.dr_rtn_path); 234 } 235 data.ntc_256.dr_trunc_hop |= hop_cnt; 236 memcpy(data.ntc_256.dr_rtn_path, return_path, 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 */ 246 void hfi1_cap_mask_chg(struct rvt_dev_info *rdi, u8 port_num) 247 { 248 struct opa_mad_notice_attr data; 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; 252 u32 lid = ppd_from_ibp(ibp)->lid; 253 254 memset(&data, 0, sizeof(data)); 255 256 data.generic_type = IB_NOTICE_TYPE_INFO; 257 data.prod_type_lsb = IB_NOTICE_PROD_CA; 258 data.trap_num = OPA_TRAP_CHANGE_CAPABILITY; 259 data.issuer_lid = cpu_to_be32(lid); 260 data.ntc_144.lid = data.issuer_lid; 261 data.ntc_144.new_cap_mask = cpu_to_be32(ibp->rvp.port_cap_flags); 262 263 send_trap(ibp, &data, sizeof(data)); 264 } 265 266 /* 267 * Send a System Image GUID Changed trap (ch. 14.3.12). 268 */ 269 void hfi1_sys_guid_chg(struct hfi1_ibport *ibp) 270 { 271 struct opa_mad_notice_attr data; 272 u32 lid = ppd_from_ibp(ibp)->lid; 273 274 memset(&data, 0, sizeof(data)); 275 276 data.generic_type = IB_NOTICE_TYPE_INFO; 277 data.prod_type_lsb = IB_NOTICE_PROD_CA; 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; 282 283 send_trap(ibp, &data, sizeof(data)); 284 } 285 286 /* 287 * Send a Node Description Changed trap (ch. 14.3.13). 288 */ 289 void hfi1_node_desc_chg(struct hfi1_ibport *ibp) 290 { 291 struct opa_mad_notice_attr data; 292 u32 lid = ppd_from_ibp(ibp)->lid; 293 294 memset(&data, 0, sizeof(data)); 295 296 data.generic_type = IB_NOTICE_TYPE_INFO; 297 data.prod_type_lsb = IB_NOTICE_PROD_CA; 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); 303 304 send_trap(ibp, &data, sizeof(data)); 305 } 306 307 static 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 } 327 328 static 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 || ibdev->node_guid == 0 || 340 get_sguid(to_iport(ibdev, port), HFI1_PORT_GUID_INDEX) == 0) { 341 smp->status |= IB_SMP_INVALID_FIELD; 342 return reply((struct ib_mad_hdr *)smp); 343 } 344 345 ni->port_guid = get_sguid(to_iport(ibdev, port), HFI1_PORT_GUID_INDEX); 346 ni->base_version = OPA_MGMT_BASE_VERSION; 347 ni->class_version = OPA_SM_CLASS_VERSION; 348 ni->node_type = 1; /* channel adapter */ 349 ni->num_ports = ibdev->phys_port_cnt; 350 /* This is already in network order */ 351 ni->system_image_guid = ib_hfi1_sys_image_guid; 352 ni->node_guid = ibdev->node_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 } 366 367 static 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 ibdev->node_guid == 0 || 377 get_sguid(to_iport(ibdev, port), HFI1_PORT_GUID_INDEX) == 0) { 378 smp->status |= IB_SMP_INVALID_FIELD; 379 return reply((struct ib_mad_hdr *)smp); 380 } 381 382 nip->port_guid = get_sguid(to_iport(ibdev, port), HFI1_PORT_GUID_INDEX); 383 nip->base_version = OPA_MGMT_BASE_VERSION; 384 nip->class_version = OPA_SM_CLASS_VERSION; 385 nip->node_type = 1; /* channel adapter */ 386 nip->num_ports = ibdev->phys_port_cnt; 387 /* This is already in network order */ 388 nip->sys_guid = ib_hfi1_sys_image_guid; 389 nip->node_guid = ibdev->node_guid; 390 nip->partition_cap = cpu_to_be16(hfi1_get_npkeys(dd)); 391 nip->device_id = cpu_to_be16(dd->pcidev->device); 392 nip->revision = cpu_to_be32(dd->minrev); 393 nip->local_port_num = port; 394 nip->vendor_id[0] = dd->oui1; 395 nip->vendor_id[1] = dd->oui2; 396 nip->vendor_id[2] = dd->oui3; 397 398 return reply((struct ib_mad_hdr *)smp); 399 } 400 401 static void set_link_width_enabled(struct hfi1_pportdata *ppd, u32 w) 402 { 403 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_ENB, w); 404 } 405 406 static void set_link_width_downgrade_enabled(struct hfi1_pportdata *ppd, u32 w) 407 { 408 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_LWID_DG_ENB, w); 409 } 410 411 static void set_link_speed_enabled(struct hfi1_pportdata *ppd, u32 s) 412 { 413 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_SPD_ENB, s); 414 } 415 416 static int check_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad, 417 int mad_flags, __be64 mkey, __be32 dr_slid, 418 u8 return_path[], u8 hop_cnt) 419 { 420 int valid_mkey = 0; 421 int ret = 0; 422 423 /* Is the mkey in the process of expiring? */ 424 if (ibp->rvp.mkey_lease_timeout && 425 time_after_eq(jiffies, ibp->rvp.mkey_lease_timeout)) { 426 /* Clear timeout and mkey protection field. */ 427 ibp->rvp.mkey_lease_timeout = 0; 428 ibp->rvp.mkeyprot = 0; 429 } 430 431 if ((mad_flags & IB_MAD_IGNORE_MKEY) || ibp->rvp.mkey == 0 || 432 ibp->rvp.mkey == mkey) 433 valid_mkey = 1; 434 435 /* Unset lease timeout on any valid Get/Set/TrapRepress */ 436 if (valid_mkey && ibp->rvp.mkey_lease_timeout && 437 (mad->method == IB_MGMT_METHOD_GET || 438 mad->method == IB_MGMT_METHOD_SET || 439 mad->method == IB_MGMT_METHOD_TRAP_REPRESS)) 440 ibp->rvp.mkey_lease_timeout = 0; 441 442 if (!valid_mkey) { 443 switch (mad->method) { 444 case IB_MGMT_METHOD_GET: 445 /* Bad mkey not a violation below level 2 */ 446 if (ibp->rvp.mkeyprot < 2) 447 break; 448 case IB_MGMT_METHOD_SET: 449 case IB_MGMT_METHOD_TRAP_REPRESS: 450 if (ibp->rvp.mkey_violations != 0xFFFF) 451 ++ibp->rvp.mkey_violations; 452 if (!ibp->rvp.mkey_lease_timeout && 453 ibp->rvp.mkey_lease_period) 454 ibp->rvp.mkey_lease_timeout = jiffies + 455 ibp->rvp.mkey_lease_period * HZ; 456 /* Generate a trap notice. */ 457 bad_mkey(ibp, mad, mkey, dr_slid, return_path, 458 hop_cnt); 459 ret = 1; 460 } 461 } 462 463 return ret; 464 } 465 466 /* 467 * The SMA caches reads from LCB registers in case the LCB is unavailable. 468 * (The LCB is unavailable in certain link states, for example.) 469 */ 470 struct lcb_datum { 471 u32 off; 472 u64 val; 473 }; 474 475 static struct lcb_datum lcb_cache[] = { 476 { DC_LCB_STS_ROUND_TRIP_LTP_CNT, 0 }, 477 }; 478 479 static int write_lcb_cache(u32 off, u64 val) 480 { 481 int i; 482 483 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) { 484 if (lcb_cache[i].off == off) { 485 lcb_cache[i].val = val; 486 return 0; 487 } 488 } 489 490 pr_warn("%s bad offset 0x%x\n", __func__, off); 491 return -1; 492 } 493 494 static int read_lcb_cache(u32 off, u64 *val) 495 { 496 int i; 497 498 for (i = 0; i < ARRAY_SIZE(lcb_cache); i++) { 499 if (lcb_cache[i].off == off) { 500 *val = lcb_cache[i].val; 501 return 0; 502 } 503 } 504 505 pr_warn("%s bad offset 0x%x\n", __func__, off); 506 return -1; 507 } 508 509 void read_ltp_rtt(struct hfi1_devdata *dd) 510 { 511 u64 reg; 512 513 if (read_lcb_csr(dd, DC_LCB_STS_ROUND_TRIP_LTP_CNT, ®)) 514 dd_dev_err(dd, "%s: unable to read LTP RTT\n", __func__); 515 else 516 write_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, reg); 517 } 518 519 static int __subn_get_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, 520 struct ib_device *ibdev, u8 port, 521 u32 *resp_len) 522 { 523 int i; 524 struct hfi1_devdata *dd; 525 struct hfi1_pportdata *ppd; 526 struct hfi1_ibport *ibp; 527 struct opa_port_info *pi = (struct opa_port_info *)data; 528 u8 mtu; 529 u8 credit_rate; 530 u8 is_beaconing_active; 531 u32 state; 532 u32 num_ports = OPA_AM_NPORT(am); 533 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am); 534 u32 buffer_units; 535 u64 tmp = 0; 536 537 if (num_ports != 1) { 538 smp->status |= IB_SMP_INVALID_FIELD; 539 return reply((struct ib_mad_hdr *)smp); 540 } 541 542 dd = dd_from_ibdev(ibdev); 543 /* IB numbers ports from 1, hw from 0 */ 544 ppd = dd->pport + (port - 1); 545 ibp = &ppd->ibport_data; 546 547 if (ppd->vls_supported / 2 > ARRAY_SIZE(pi->neigh_mtu.pvlx_to_mtu) || 548 ppd->vls_supported > ARRAY_SIZE(dd->vld)) { 549 smp->status |= IB_SMP_INVALID_FIELD; 550 return reply((struct ib_mad_hdr *)smp); 551 } 552 553 pi->lid = cpu_to_be32(ppd->lid); 554 555 /* Only return the mkey if the protection field allows it. */ 556 if (!(smp->method == IB_MGMT_METHOD_GET && 557 ibp->rvp.mkey != smp->mkey && 558 ibp->rvp.mkeyprot == 1)) 559 pi->mkey = ibp->rvp.mkey; 560 561 pi->subnet_prefix = ibp->rvp.gid_prefix; 562 pi->sm_lid = cpu_to_be32(ibp->rvp.sm_lid); 563 pi->ib_cap_mask = cpu_to_be32(ibp->rvp.port_cap_flags); 564 pi->mkey_lease_period = cpu_to_be16(ibp->rvp.mkey_lease_period); 565 pi->sm_trap_qp = cpu_to_be32(ppd->sm_trap_qp); 566 pi->sa_qp = cpu_to_be32(ppd->sa_qp); 567 568 pi->link_width.enabled = cpu_to_be16(ppd->link_width_enabled); 569 pi->link_width.supported = cpu_to_be16(ppd->link_width_supported); 570 pi->link_width.active = cpu_to_be16(ppd->link_width_active); 571 572 pi->link_width_downgrade.supported = 573 cpu_to_be16(ppd->link_width_downgrade_supported); 574 pi->link_width_downgrade.enabled = 575 cpu_to_be16(ppd->link_width_downgrade_enabled); 576 pi->link_width_downgrade.tx_active = 577 cpu_to_be16(ppd->link_width_downgrade_tx_active); 578 pi->link_width_downgrade.rx_active = 579 cpu_to_be16(ppd->link_width_downgrade_rx_active); 580 581 pi->link_speed.supported = cpu_to_be16(ppd->link_speed_supported); 582 pi->link_speed.active = cpu_to_be16(ppd->link_speed_active); 583 pi->link_speed.enabled = cpu_to_be16(ppd->link_speed_enabled); 584 585 state = driver_lstate(ppd); 586 587 if (start_of_sm_config && (state == IB_PORT_INIT)) 588 ppd->is_sm_config_started = 1; 589 590 pi->port_phys_conf = (ppd->port_type & 0xf); 591 592 pi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4; 593 pi->port_states.ledenable_offlinereason |= 594 ppd->is_sm_config_started << 5; 595 /* 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 599 */ 600 smp_rmb(); 601 is_beaconing_active = !!atomic_read(&ppd->led_override_timer_active); 602 pi->port_states.ledenable_offlinereason |= is_beaconing_active << 6; 603 pi->port_states.ledenable_offlinereason |= 604 ppd->offline_disabled_reason; 605 606 pi->port_states.portphysstate_portstate = 607 (hfi1_ibphys_portstate(ppd) << 4) | state; 608 609 pi->mkeyprotect_lmc = (ibp->rvp.mkeyprot << 6) | ppd->lmc; 610 611 memset(pi->neigh_mtu.pvlx_to_mtu, 0, sizeof(pi->neigh_mtu.pvlx_to_mtu)); 612 for (i = 0; i < ppd->vls_supported; i++) { 613 mtu = mtu_to_enum(dd->vld[i].mtu, HFI1_DEFAULT_ACTIVE_MTU); 614 if ((i % 2) == 0) 615 pi->neigh_mtu.pvlx_to_mtu[i / 2] |= (mtu << 4); 616 else 617 pi->neigh_mtu.pvlx_to_mtu[i / 2] |= mtu; 618 } 619 /* don't forget VL 15 */ 620 mtu = mtu_to_enum(dd->vld[15].mtu, 2048); 621 pi->neigh_mtu.pvlx_to_mtu[15 / 2] |= mtu; 622 pi->smsl = ibp->rvp.sm_sl & OPA_PI_MASK_SMSL; 623 pi->operational_vls = hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS); 624 pi->partenforce_filterraw |= 625 (ppd->linkinit_reason & OPA_PI_MASK_LINKINIT_REASON); 626 if (ppd->part_enforce & HFI1_PART_ENFORCE_IN) 627 pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_IN; 628 if (ppd->part_enforce & HFI1_PART_ENFORCE_OUT) 629 pi->partenforce_filterraw |= OPA_PI_MASK_PARTITION_ENFORCE_OUT; 630 pi->mkey_violations = cpu_to_be16(ibp->rvp.mkey_violations); 631 /* P_KeyViolations are counted by hardware. */ 632 pi->pkey_violations = cpu_to_be16(ibp->rvp.pkey_violations); 633 pi->qkey_violations = cpu_to_be16(ibp->rvp.qkey_violations); 634 635 pi->vl.cap = ppd->vls_supported; 636 pi->vl.high_limit = cpu_to_be16(ibp->rvp.vl_high_limit); 637 pi->vl.arb_high_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_CAP); 638 pi->vl.arb_low_cap = (u8)hfi1_get_ib_cfg(ppd, HFI1_IB_CFG_VL_LOW_CAP); 639 640 pi->clientrereg_subnettimeout = ibp->rvp.subnet_timeout; 641 642 pi->port_link_mode = cpu_to_be16(OPA_PORT_LINK_MODE_OPA << 10 | 643 OPA_PORT_LINK_MODE_OPA << 5 | 644 OPA_PORT_LINK_MODE_OPA); 645 646 pi->port_ltp_crc_mode = cpu_to_be16(ppd->port_ltp_crc_mode); 647 648 pi->port_mode = cpu_to_be16( 649 ppd->is_active_optimize_enabled ? 650 OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE : 0); 651 652 pi->port_packet_format.supported = 653 cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B); 654 pi->port_packet_format.enabled = 655 cpu_to_be16(OPA_PORT_PACKET_FORMAT_9B); 656 657 /* flit_control.interleave is (OPA V1, version .76): 658 * bits use 659 * ---- --- 660 * 2 res 661 * 2 DistanceSupported 662 * 2 DistanceEnabled 663 * 5 MaxNextLevelTxEnabled 664 * 5 MaxNestLevelRxSupported 665 * 666 * HFI supports only "distance mode 1" (see OPA V1, version .76, 667 * section 9.6.2), so set DistanceSupported, DistanceEnabled 668 * to 0x1. 669 */ 670 pi->flit_control.interleave = cpu_to_be16(0x1400); 671 672 pi->link_down_reason = ppd->local_link_down_reason.sma; 673 pi->neigh_link_down_reason = ppd->neigh_link_down_reason.sma; 674 pi->port_error_action = cpu_to_be32(ppd->port_error_action); 675 pi->mtucap = mtu_to_enum(hfi1_max_mtu, IB_MTU_4096); 676 677 /* 32.768 usec. response time (guessing) */ 678 pi->resptimevalue = 3; 679 680 pi->local_port_num = port; 681 682 /* buffer info for FM */ 683 pi->overall_buffer_space = cpu_to_be16(dd->link_credits); 684 685 pi->neigh_node_guid = cpu_to_be64(ppd->neighbor_guid); 686 pi->neigh_port_num = ppd->neighbor_port_number; 687 pi->port_neigh_mode = 688 (ppd->neighbor_type & OPA_PI_MASK_NEIGH_NODE_TYPE) | 689 (ppd->mgmt_allowed ? OPA_PI_MASK_NEIGH_MGMT_ALLOWED : 0) | 690 (ppd->neighbor_fm_security ? 691 OPA_PI_MASK_NEIGH_FW_AUTH_BYPASS : 0); 692 693 /* HFIs shall always return VL15 credits to their 694 * neighbor in a timely manner, without any credit return pacing. 695 */ 696 credit_rate = 0; 697 buffer_units = (dd->vau) & OPA_PI_MASK_BUF_UNIT_BUF_ALLOC; 698 buffer_units |= (dd->vcu << 3) & OPA_PI_MASK_BUF_UNIT_CREDIT_ACK; 699 buffer_units |= (credit_rate << 6) & 700 OPA_PI_MASK_BUF_UNIT_VL15_CREDIT_RATE; 701 buffer_units |= (dd->vl15_init << 11) & OPA_PI_MASK_BUF_UNIT_VL15_INIT; 702 pi->buffer_units = cpu_to_be32(buffer_units); 703 704 pi->opa_cap_mask = cpu_to_be16(OPA_CAP_MASK3_IsSharedSpaceSupported); 705 706 /* HFI supports a replay buffer 128 LTPs in size */ 707 pi->replay_depth.buffer = 0x80; 708 /* read the cached value of DC_LCB_STS_ROUND_TRIP_LTP_CNT */ 709 read_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, &tmp); 710 711 /* 712 * this counter is 16 bits wide, but the replay_depth.wire 713 * variable is only 8 bits 714 */ 715 if (tmp > 0xff) 716 tmp = 0xff; 717 pi->replay_depth.wire = tmp; 718 719 if (resp_len) 720 *resp_len += sizeof(struct opa_port_info); 721 722 return reply((struct ib_mad_hdr *)smp); 723 } 724 725 /** 726 * get_pkeys - return the PKEY table 727 * @dd: the hfi1_ib device 728 * @port: the IB port number 729 * @pkeys: the pkey table is placed here 730 */ 731 static int get_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys) 732 { 733 struct hfi1_pportdata *ppd = dd->pport + port - 1; 734 735 memcpy(pkeys, ppd->pkeys, sizeof(ppd->pkeys)); 736 737 return 0; 738 } 739 740 static int __subn_get_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data, 741 struct ib_device *ibdev, u8 port, 742 u32 *resp_len) 743 { 744 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 745 u32 n_blocks_req = OPA_AM_NBLK(am); 746 u32 start_block = am & 0x7ff; 747 __be16 *p; 748 u16 *q; 749 int i; 750 u16 n_blocks_avail; 751 unsigned npkeys = hfi1_get_npkeys(dd); 752 size_t size; 753 754 if (n_blocks_req == 0) { 755 pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n", 756 port, start_block, n_blocks_req); 757 smp->status |= IB_SMP_INVALID_FIELD; 758 return reply((struct ib_mad_hdr *)smp); 759 } 760 761 n_blocks_avail = (u16)(npkeys / OPA_PARTITION_TABLE_BLK_SIZE) + 1; 762 763 size = (n_blocks_req * OPA_PARTITION_TABLE_BLK_SIZE) * sizeof(u16); 764 765 if (start_block + n_blocks_req > n_blocks_avail || 766 n_blocks_req > OPA_NUM_PKEY_BLOCKS_PER_SMP) { 767 pr_warn("OPA Get PKey AM Invalid : s 0x%x; req 0x%x; " 768 "avail 0x%x; blk/smp 0x%lx\n", 769 start_block, n_blocks_req, n_blocks_avail, 770 OPA_NUM_PKEY_BLOCKS_PER_SMP); 771 smp->status |= IB_SMP_INVALID_FIELD; 772 return reply((struct ib_mad_hdr *)smp); 773 } 774 775 p = (__be16 *)data; 776 q = (u16 *)data; 777 /* get the real pkeys if we are requesting the first block */ 778 if (start_block == 0) { 779 get_pkeys(dd, port, q); 780 for (i = 0; i < npkeys; i++) 781 p[i] = cpu_to_be16(q[i]); 782 if (resp_len) 783 *resp_len += size; 784 } else { 785 smp->status |= IB_SMP_INVALID_FIELD; 786 } 787 return reply((struct ib_mad_hdr *)smp); 788 } 789 790 enum { 791 HFI_TRANSITION_DISALLOWED, 792 HFI_TRANSITION_IGNORED, 793 HFI_TRANSITION_ALLOWED, 794 HFI_TRANSITION_UNDEFINED, 795 }; 796 797 /* 798 * Use shortened names to improve readability of 799 * {logical,physical}_state_transitions 800 */ 801 enum { 802 __D = HFI_TRANSITION_DISALLOWED, 803 __I = HFI_TRANSITION_IGNORED, 804 __A = HFI_TRANSITION_ALLOWED, 805 __U = HFI_TRANSITION_UNDEFINED, 806 }; 807 808 /* 809 * IB_PORTPHYSSTATE_POLLING (2) through OPA_PORTPHYSSTATE_MAX (11) are 810 * represented in physical_state_transitions. 811 */ 812 #define __N_PHYSTATES (OPA_PORTPHYSSTATE_MAX - IB_PORTPHYSSTATE_POLLING + 1) 813 814 /* 815 * Within physical_state_transitions, rows represent "old" states, 816 * columns "new" states, and physical_state_transitions.allowed[old][new] 817 * indicates if the transition from old state to new state is legal (see 818 * OPAg1v1, Table 6-4). 819 */ 820 static const struct { 821 u8 allowed[__N_PHYSTATES][__N_PHYSTATES]; 822 } physical_state_transitions = { 823 { 824 /* 2 3 4 5 6 7 8 9 10 11 */ 825 /* 2 */ { __A, __A, __D, __D, __D, __D, __D, __D, __D, __D }, 826 /* 3 */ { __A, __I, __D, __D, __D, __D, __D, __D, __D, __A }, 827 /* 4 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U }, 828 /* 5 */ { __A, __A, __D, __I, __D, __D, __D, __D, __D, __D }, 829 /* 6 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U }, 830 /* 7 */ { __D, __A, __D, __D, __D, __I, __D, __D, __D, __D }, 831 /* 8 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U }, 832 /* 9 */ { __I, __A, __D, __D, __D, __D, __D, __I, __D, __D }, 833 /*10 */ { __U, __U, __U, __U, __U, __U, __U, __U, __U, __U }, 834 /*11 */ { __D, __A, __D, __D, __D, __D, __D, __D, __D, __I }, 835 } 836 }; 837 838 /* 839 * IB_PORT_DOWN (1) through IB_PORT_ACTIVE_DEFER (5) are represented 840 * logical_state_transitions 841 */ 842 843 #define __N_LOGICAL_STATES (IB_PORT_ACTIVE_DEFER - IB_PORT_DOWN + 1) 844 845 /* 846 * Within logical_state_transitions rows represent "old" states, 847 * columns "new" states, and logical_state_transitions.allowed[old][new] 848 * indicates if the transition from old state to new state is legal (see 849 * OPAg1v1, Table 9-12). 850 */ 851 static const struct { 852 u8 allowed[__N_LOGICAL_STATES][__N_LOGICAL_STATES]; 853 } logical_state_transitions = { 854 { 855 /* 1 2 3 4 5 */ 856 /* 1 */ { __I, __D, __D, __D, __U}, 857 /* 2 */ { __D, __I, __A, __D, __U}, 858 /* 3 */ { __D, __D, __I, __A, __U}, 859 /* 4 */ { __D, __D, __I, __I, __U}, 860 /* 5 */ { __U, __U, __U, __U, __U}, 861 } 862 }; 863 864 static int logical_transition_allowed(int old, int new) 865 { 866 if (old < IB_PORT_NOP || old > IB_PORT_ACTIVE_DEFER || 867 new < IB_PORT_NOP || new > IB_PORT_ACTIVE_DEFER) { 868 pr_warn("invalid logical state(s) (old %d new %d)\n", 869 old, new); 870 return HFI_TRANSITION_UNDEFINED; 871 } 872 873 if (new == IB_PORT_NOP) 874 return HFI_TRANSITION_ALLOWED; /* always allowed */ 875 876 /* adjust states for indexing into logical_state_transitions */ 877 old -= IB_PORT_DOWN; 878 new -= IB_PORT_DOWN; 879 880 if (old < 0 || new < 0) 881 return HFI_TRANSITION_UNDEFINED; 882 return logical_state_transitions.allowed[old][new]; 883 } 884 885 static int physical_transition_allowed(int old, int new) 886 { 887 if (old < IB_PORTPHYSSTATE_NOP || old > OPA_PORTPHYSSTATE_MAX || 888 new < IB_PORTPHYSSTATE_NOP || new > OPA_PORTPHYSSTATE_MAX) { 889 pr_warn("invalid physical state(s) (old %d new %d)\n", 890 old, new); 891 return HFI_TRANSITION_UNDEFINED; 892 } 893 894 if (new == IB_PORTPHYSSTATE_NOP) 895 return HFI_TRANSITION_ALLOWED; /* always allowed */ 896 897 /* adjust states for indexing into physical_state_transitions */ 898 old -= IB_PORTPHYSSTATE_POLLING; 899 new -= IB_PORTPHYSSTATE_POLLING; 900 901 if (old < 0 || new < 0) 902 return HFI_TRANSITION_UNDEFINED; 903 return physical_state_transitions.allowed[old][new]; 904 } 905 906 static int port_states_transition_allowed(struct hfi1_pportdata *ppd, 907 u32 logical_new, u32 physical_new) 908 { 909 u32 physical_old = driver_physical_state(ppd); 910 u32 logical_old = driver_logical_state(ppd); 911 int ret, logical_allowed, physical_allowed; 912 913 ret = logical_transition_allowed(logical_old, logical_new); 914 logical_allowed = ret; 915 916 if (ret == HFI_TRANSITION_DISALLOWED || 917 ret == HFI_TRANSITION_UNDEFINED) { 918 pr_warn("invalid logical state transition %s -> %s\n", 919 opa_lstate_name(logical_old), 920 opa_lstate_name(logical_new)); 921 return ret; 922 } 923 924 ret = physical_transition_allowed(physical_old, physical_new); 925 physical_allowed = ret; 926 927 if (ret == HFI_TRANSITION_DISALLOWED || 928 ret == HFI_TRANSITION_UNDEFINED) { 929 pr_warn("invalid physical state transition %s -> %s\n", 930 opa_pstate_name(physical_old), 931 opa_pstate_name(physical_new)); 932 return ret; 933 } 934 935 if (logical_allowed == HFI_TRANSITION_IGNORED && 936 physical_allowed == HFI_TRANSITION_IGNORED) 937 return HFI_TRANSITION_IGNORED; 938 939 /* 940 * A change request of Physical Port State from 941 * 'Offline' to 'Polling' should be ignored. 942 */ 943 if ((physical_old == OPA_PORTPHYSSTATE_OFFLINE) && 944 (physical_new == IB_PORTPHYSSTATE_POLLING)) 945 return HFI_TRANSITION_IGNORED; 946 947 /* 948 * Either physical_allowed or logical_allowed is 949 * HFI_TRANSITION_ALLOWED. 950 */ 951 return HFI_TRANSITION_ALLOWED; 952 } 953 954 static int set_port_states(struct hfi1_pportdata *ppd, struct opa_smp *smp, 955 u32 logical_state, u32 phys_state, 956 int suppress_idle_sma) 957 { 958 struct hfi1_devdata *dd = ppd->dd; 959 u32 link_state; 960 int ret; 961 962 ret = port_states_transition_allowed(ppd, logical_state, phys_state); 963 if (ret == HFI_TRANSITION_DISALLOWED || 964 ret == HFI_TRANSITION_UNDEFINED) { 965 /* error message emitted above */ 966 smp->status |= IB_SMP_INVALID_FIELD; 967 return 0; 968 } 969 970 if (ret == HFI_TRANSITION_IGNORED) 971 return 0; 972 973 if ((phys_state != IB_PORTPHYSSTATE_NOP) && 974 !(logical_state == IB_PORT_DOWN || 975 logical_state == IB_PORT_NOP)){ 976 pr_warn("SubnSet(OPA_PortInfo) port state invalid: logical_state 0x%x physical_state 0x%x\n", 977 logical_state, phys_state); 978 smp->status |= IB_SMP_INVALID_FIELD; 979 } 980 981 /* 982 * Logical state changes are summarized in OPAv1g1 spec., 983 * Table 9-12; physical state changes are summarized in 984 * OPAv1g1 spec., Table 6.4. 985 */ 986 switch (logical_state) { 987 case IB_PORT_NOP: 988 if (phys_state == IB_PORTPHYSSTATE_NOP) 989 break; 990 /* FALLTHROUGH */ 991 case IB_PORT_DOWN: 992 if (phys_state == IB_PORTPHYSSTATE_NOP) { 993 link_state = HLS_DN_DOWNDEF; 994 } else if (phys_state == IB_PORTPHYSSTATE_POLLING) { 995 link_state = HLS_DN_POLL; 996 set_link_down_reason(ppd, OPA_LINKDOWN_REASON_FM_BOUNCE, 997 0, OPA_LINKDOWN_REASON_FM_BOUNCE); 998 } else if (phys_state == IB_PORTPHYSSTATE_DISABLED) { 999 link_state = HLS_DN_DISABLE; 1000 } else { 1001 pr_warn("SubnSet(OPA_PortInfo) invalid physical state 0x%x\n", 1002 phys_state); 1003 smp->status |= IB_SMP_INVALID_FIELD; 1004 break; 1005 } 1006 1007 if ((link_state == HLS_DN_POLL || 1008 link_state == HLS_DN_DOWNDEF)) { 1009 /* 1010 * Going to poll. No matter what the current state, 1011 * always move offline first, then tune and start the 1012 * link. This correctly handles a FM link bounce and 1013 * a link enable. Going offline is a no-op if already 1014 * offline. 1015 */ 1016 set_link_state(ppd, HLS_DN_OFFLINE); 1017 start_link(ppd); 1018 } else { 1019 set_link_state(ppd, link_state); 1020 } 1021 if (link_state == HLS_DN_DISABLE && 1022 (ppd->offline_disabled_reason > 1023 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED) || 1024 ppd->offline_disabled_reason == 1025 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE))) 1026 ppd->offline_disabled_reason = 1027 HFI1_ODR_MASK(OPA_LINKDOWN_REASON_SMA_DISABLED); 1028 /* 1029 * Don't send a reply if the response would be sent 1030 * through the disabled port. 1031 */ 1032 if (link_state == HLS_DN_DISABLE && smp->hop_cnt) 1033 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 1034 break; 1035 case IB_PORT_ARMED: 1036 ret = set_link_state(ppd, HLS_UP_ARMED); 1037 if ((ret == 0) && (suppress_idle_sma == 0)) 1038 send_idle_sma(dd, SMA_IDLE_ARM); 1039 break; 1040 case IB_PORT_ACTIVE: 1041 if (ppd->neighbor_normal) { 1042 ret = set_link_state(ppd, HLS_UP_ACTIVE); 1043 if (ret == 0) 1044 send_idle_sma(dd, SMA_IDLE_ACTIVE); 1045 } else { 1046 pr_warn("SubnSet(OPA_PortInfo) Cannot move to Active with NeighborNormal 0\n"); 1047 smp->status |= IB_SMP_INVALID_FIELD; 1048 } 1049 break; 1050 default: 1051 pr_warn("SubnSet(OPA_PortInfo) invalid logical state 0x%x\n", 1052 logical_state); 1053 smp->status |= IB_SMP_INVALID_FIELD; 1054 } 1055 1056 return 0; 1057 } 1058 1059 /** 1060 * subn_set_opa_portinfo - set port information 1061 * @smp: the incoming SM packet 1062 * @ibdev: the infiniband device 1063 * @port: the port on the device 1064 * 1065 */ 1066 static int __subn_set_opa_portinfo(struct opa_smp *smp, u32 am, u8 *data, 1067 struct ib_device *ibdev, u8 port, 1068 u32 *resp_len) 1069 { 1070 struct opa_port_info *pi = (struct opa_port_info *)data; 1071 struct ib_event event; 1072 struct hfi1_devdata *dd; 1073 struct hfi1_pportdata *ppd; 1074 struct hfi1_ibport *ibp; 1075 u8 clientrereg; 1076 unsigned long flags; 1077 u32 smlid, opa_lid; /* tmp vars to hold LID values */ 1078 u16 lid; 1079 u8 ls_old, ls_new, ps_new; 1080 u8 vls; 1081 u8 msl; 1082 u8 crc_enabled; 1083 u16 lse, lwe, mtu; 1084 u32 num_ports = OPA_AM_NPORT(am); 1085 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am); 1086 int ret, i, invalid = 0, call_set_mtu = 0; 1087 int call_link_downgrade_policy = 0; 1088 1089 if (num_ports != 1) { 1090 smp->status |= IB_SMP_INVALID_FIELD; 1091 return reply((struct ib_mad_hdr *)smp); 1092 } 1093 1094 opa_lid = be32_to_cpu(pi->lid); 1095 if (opa_lid & 0xFFFF0000) { 1096 pr_warn("OPA_PortInfo lid out of range: %X\n", opa_lid); 1097 smp->status |= IB_SMP_INVALID_FIELD; 1098 goto get_only; 1099 } 1100 1101 lid = (u16)(opa_lid & 0x0000FFFF); 1102 1103 smlid = be32_to_cpu(pi->sm_lid); 1104 if (smlid & 0xFFFF0000) { 1105 pr_warn("OPA_PortInfo SM lid out of range: %X\n", smlid); 1106 smp->status |= IB_SMP_INVALID_FIELD; 1107 goto get_only; 1108 } 1109 smlid &= 0x0000FFFF; 1110 1111 clientrereg = (pi->clientrereg_subnettimeout & 1112 OPA_PI_MASK_CLIENT_REREGISTER); 1113 1114 dd = dd_from_ibdev(ibdev); 1115 /* IB numbers ports from 1, hw from 0 */ 1116 ppd = dd->pport + (port - 1); 1117 ibp = &ppd->ibport_data; 1118 event.device = ibdev; 1119 event.element.port_num = port; 1120 1121 ls_old = driver_lstate(ppd); 1122 1123 ibp->rvp.mkey = pi->mkey; 1124 ibp->rvp.gid_prefix = pi->subnet_prefix; 1125 ibp->rvp.mkey_lease_period = be16_to_cpu(pi->mkey_lease_period); 1126 1127 /* Must be a valid unicast LID address. */ 1128 if ((lid == 0 && ls_old > IB_PORT_INIT) || 1129 lid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) { 1130 smp->status |= IB_SMP_INVALID_FIELD; 1131 pr_warn("SubnSet(OPA_PortInfo) lid invalid 0x%x\n", 1132 lid); 1133 } else if (ppd->lid != lid || 1134 ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC)) { 1135 if (ppd->lid != lid) 1136 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LID_CHANGE_BIT); 1137 if (ppd->lmc != (pi->mkeyprotect_lmc & OPA_PI_MASK_LMC)) 1138 hfi1_set_uevent_bits(ppd, _HFI1_EVENT_LMC_CHANGE_BIT); 1139 hfi1_set_lid(ppd, lid, pi->mkeyprotect_lmc & OPA_PI_MASK_LMC); 1140 event.event = IB_EVENT_LID_CHANGE; 1141 ib_dispatch_event(&event); 1142 } 1143 1144 msl = pi->smsl & OPA_PI_MASK_SMSL; 1145 if (pi->partenforce_filterraw & OPA_PI_MASK_LINKINIT_REASON) 1146 ppd->linkinit_reason = 1147 (pi->partenforce_filterraw & 1148 OPA_PI_MASK_LINKINIT_REASON); 1149 /* enable/disable SW pkey checking as per FM control */ 1150 if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_IN) 1151 ppd->part_enforce |= HFI1_PART_ENFORCE_IN; 1152 else 1153 ppd->part_enforce &= ~HFI1_PART_ENFORCE_IN; 1154 1155 if (pi->partenforce_filterraw & OPA_PI_MASK_PARTITION_ENFORCE_OUT) 1156 ppd->part_enforce |= HFI1_PART_ENFORCE_OUT; 1157 else 1158 ppd->part_enforce &= ~HFI1_PART_ENFORCE_OUT; 1159 1160 /* Must be a valid unicast LID address. */ 1161 if ((smlid == 0 && ls_old > IB_PORT_INIT) || 1162 smlid >= be16_to_cpu(IB_MULTICAST_LID_BASE)) { 1163 smp->status |= IB_SMP_INVALID_FIELD; 1164 pr_warn("SubnSet(OPA_PortInfo) smlid invalid 0x%x\n", smlid); 1165 } else if (smlid != ibp->rvp.sm_lid || msl != ibp->rvp.sm_sl) { 1166 pr_warn("SubnSet(OPA_PortInfo) smlid 0x%x\n", smlid); 1167 spin_lock_irqsave(&ibp->rvp.lock, flags); 1168 if (ibp->rvp.sm_ah) { 1169 if (smlid != ibp->rvp.sm_lid) 1170 ibp->rvp.sm_ah->attr.dlid = smlid; 1171 if (msl != ibp->rvp.sm_sl) 1172 ibp->rvp.sm_ah->attr.sl = msl; 1173 } 1174 spin_unlock_irqrestore(&ibp->rvp.lock, flags); 1175 if (smlid != ibp->rvp.sm_lid) 1176 ibp->rvp.sm_lid = smlid; 1177 if (msl != ibp->rvp.sm_sl) 1178 ibp->rvp.sm_sl = msl; 1179 event.event = IB_EVENT_SM_CHANGE; 1180 ib_dispatch_event(&event); 1181 } 1182 1183 if (pi->link_down_reason == 0) { 1184 ppd->local_link_down_reason.sma = 0; 1185 ppd->local_link_down_reason.latest = 0; 1186 } 1187 1188 if (pi->neigh_link_down_reason == 0) { 1189 ppd->neigh_link_down_reason.sma = 0; 1190 ppd->neigh_link_down_reason.latest = 0; 1191 } 1192 1193 ppd->sm_trap_qp = be32_to_cpu(pi->sm_trap_qp); 1194 ppd->sa_qp = be32_to_cpu(pi->sa_qp); 1195 1196 ppd->port_error_action = be32_to_cpu(pi->port_error_action); 1197 lwe = be16_to_cpu(pi->link_width.enabled); 1198 if (lwe) { 1199 if (lwe == OPA_LINK_WIDTH_RESET || 1200 lwe == OPA_LINK_WIDTH_RESET_OLD) 1201 set_link_width_enabled(ppd, ppd->link_width_supported); 1202 else if ((lwe & ~ppd->link_width_supported) == 0) 1203 set_link_width_enabled(ppd, lwe); 1204 else 1205 smp->status |= IB_SMP_INVALID_FIELD; 1206 } 1207 lwe = be16_to_cpu(pi->link_width_downgrade.enabled); 1208 /* LWD.E is always applied - 0 means "disabled" */ 1209 if (lwe == OPA_LINK_WIDTH_RESET || 1210 lwe == OPA_LINK_WIDTH_RESET_OLD) { 1211 set_link_width_downgrade_enabled(ppd, 1212 ppd-> 1213 link_width_downgrade_supported 1214 ); 1215 } else if ((lwe & ~ppd->link_width_downgrade_supported) == 0) { 1216 /* only set and apply if something changed */ 1217 if (lwe != ppd->link_width_downgrade_enabled) { 1218 set_link_width_downgrade_enabled(ppd, lwe); 1219 call_link_downgrade_policy = 1; 1220 } 1221 } else { 1222 smp->status |= IB_SMP_INVALID_FIELD; 1223 } 1224 lse = be16_to_cpu(pi->link_speed.enabled); 1225 if (lse) { 1226 if (lse & be16_to_cpu(pi->link_speed.supported)) 1227 set_link_speed_enabled(ppd, lse); 1228 else 1229 smp->status |= IB_SMP_INVALID_FIELD; 1230 } 1231 1232 ibp->rvp.mkeyprot = 1233 (pi->mkeyprotect_lmc & OPA_PI_MASK_MKEY_PROT_BIT) >> 6; 1234 ibp->rvp.vl_high_limit = be16_to_cpu(pi->vl.high_limit) & 0xFF; 1235 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_VL_HIGH_LIMIT, 1236 ibp->rvp.vl_high_limit); 1237 1238 if (ppd->vls_supported / 2 > ARRAY_SIZE(pi->neigh_mtu.pvlx_to_mtu) || 1239 ppd->vls_supported > ARRAY_SIZE(dd->vld)) { 1240 smp->status |= IB_SMP_INVALID_FIELD; 1241 return reply((struct ib_mad_hdr *)smp); 1242 } 1243 for (i = 0; i < ppd->vls_supported; i++) { 1244 if ((i % 2) == 0) 1245 mtu = enum_to_mtu((pi->neigh_mtu.pvlx_to_mtu[i / 2] >> 1246 4) & 0xF); 1247 else 1248 mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[i / 2] & 1249 0xF); 1250 if (mtu == 0xffff) { 1251 pr_warn("SubnSet(OPA_PortInfo) mtu invalid %d (0x%x)\n", 1252 mtu, 1253 (pi->neigh_mtu.pvlx_to_mtu[0] >> 4) & 0xF); 1254 smp->status |= IB_SMP_INVALID_FIELD; 1255 mtu = hfi1_max_mtu; /* use a valid MTU */ 1256 } 1257 if (dd->vld[i].mtu != mtu) { 1258 dd_dev_info(dd, 1259 "MTU change on vl %d from %d to %d\n", 1260 i, dd->vld[i].mtu, mtu); 1261 dd->vld[i].mtu = mtu; 1262 call_set_mtu++; 1263 } 1264 } 1265 /* As per OPAV1 spec: VL15 must support and be configured 1266 * for operation with a 2048 or larger MTU. 1267 */ 1268 mtu = enum_to_mtu(pi->neigh_mtu.pvlx_to_mtu[15 / 2] & 0xF); 1269 if (mtu < 2048 || mtu == 0xffff) 1270 mtu = 2048; 1271 if (dd->vld[15].mtu != mtu) { 1272 dd_dev_info(dd, 1273 "MTU change on vl 15 from %d to %d\n", 1274 dd->vld[15].mtu, mtu); 1275 dd->vld[15].mtu = mtu; 1276 call_set_mtu++; 1277 } 1278 if (call_set_mtu) 1279 set_mtu(ppd); 1280 1281 /* Set operational VLs */ 1282 vls = pi->operational_vls & OPA_PI_MASK_OPERATIONAL_VL; 1283 if (vls) { 1284 if (vls > ppd->vls_supported) { 1285 pr_warn("SubnSet(OPA_PortInfo) VL's supported invalid %d\n", 1286 pi->operational_vls); 1287 smp->status |= IB_SMP_INVALID_FIELD; 1288 } else { 1289 if (hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_OP_VLS, 1290 vls) == -EINVAL) 1291 smp->status |= IB_SMP_INVALID_FIELD; 1292 } 1293 } 1294 1295 if (pi->mkey_violations == 0) 1296 ibp->rvp.mkey_violations = 0; 1297 1298 if (pi->pkey_violations == 0) 1299 ibp->rvp.pkey_violations = 0; 1300 1301 if (pi->qkey_violations == 0) 1302 ibp->rvp.qkey_violations = 0; 1303 1304 ibp->rvp.subnet_timeout = 1305 pi->clientrereg_subnettimeout & OPA_PI_MASK_SUBNET_TIMEOUT; 1306 1307 crc_enabled = be16_to_cpu(pi->port_ltp_crc_mode); 1308 crc_enabled >>= 4; 1309 crc_enabled &= 0xf; 1310 1311 if (crc_enabled != 0) 1312 ppd->port_crc_mode_enabled = port_ltp_to_cap(crc_enabled); 1313 1314 ppd->is_active_optimize_enabled = 1315 !!(be16_to_cpu(pi->port_mode) 1316 & OPA_PI_MASK_PORT_ACTIVE_OPTOMIZE); 1317 1318 ls_new = pi->port_states.portphysstate_portstate & 1319 OPA_PI_MASK_PORT_STATE; 1320 ps_new = (pi->port_states.portphysstate_portstate & 1321 OPA_PI_MASK_PORT_PHYSICAL_STATE) >> 4; 1322 1323 if (ls_old == IB_PORT_INIT) { 1324 if (start_of_sm_config) { 1325 if (ls_new == ls_old || (ls_new == IB_PORT_ARMED)) 1326 ppd->is_sm_config_started = 1; 1327 } else if (ls_new == IB_PORT_ARMED) { 1328 if (ppd->is_sm_config_started == 0) 1329 invalid = 1; 1330 } 1331 } 1332 1333 /* Handle CLIENT_REREGISTER event b/c SM asked us for it */ 1334 if (clientrereg) { 1335 event.event = IB_EVENT_CLIENT_REREGISTER; 1336 ib_dispatch_event(&event); 1337 } 1338 1339 /* 1340 * Do the port state change now that the other link parameters 1341 * have been set. 1342 * Changing the port physical state only makes sense if the link 1343 * is down or is being set to down. 1344 */ 1345 1346 ret = set_port_states(ppd, smp, ls_new, ps_new, invalid); 1347 if (ret) 1348 return ret; 1349 1350 ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len); 1351 1352 /* restore re-reg bit per o14-12.2.1 */ 1353 pi->clientrereg_subnettimeout |= clientrereg; 1354 1355 /* 1356 * Apply the new link downgrade policy. This may result in a link 1357 * bounce. Do this after everything else so things are settled. 1358 * Possible problem: if setting the port state above fails, then 1359 * the policy change is not applied. 1360 */ 1361 if (call_link_downgrade_policy) 1362 apply_link_downgrade_policy(ppd, 0); 1363 1364 return ret; 1365 1366 get_only: 1367 return __subn_get_opa_portinfo(smp, am, data, ibdev, port, resp_len); 1368 } 1369 1370 /** 1371 * set_pkeys - set the PKEY table for ctxt 0 1372 * @dd: the hfi1_ib device 1373 * @port: the IB port number 1374 * @pkeys: the PKEY table 1375 */ 1376 static int set_pkeys(struct hfi1_devdata *dd, u8 port, u16 *pkeys) 1377 { 1378 struct hfi1_pportdata *ppd; 1379 int i; 1380 int changed = 0; 1381 int update_includes_mgmt_partition = 0; 1382 1383 /* 1384 * IB port one/two always maps to context zero/one, 1385 * always a kernel context, no locking needed 1386 * If we get here with ppd setup, no need to check 1387 * that rcd is valid. 1388 */ 1389 ppd = dd->pport + (port - 1); 1390 /* 1391 * If the update does not include the management pkey, don't do it. 1392 */ 1393 for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { 1394 if (pkeys[i] == LIM_MGMT_P_KEY) { 1395 update_includes_mgmt_partition = 1; 1396 break; 1397 } 1398 } 1399 1400 if (!update_includes_mgmt_partition) 1401 return 1; 1402 1403 for (i = 0; i < ARRAY_SIZE(ppd->pkeys); i++) { 1404 u16 key = pkeys[i]; 1405 u16 okey = ppd->pkeys[i]; 1406 1407 if (key == okey) 1408 continue; 1409 /* 1410 * The SM gives us the complete PKey table. We have 1411 * to ensure that we put the PKeys in the matching 1412 * slots. 1413 */ 1414 ppd->pkeys[i] = key; 1415 changed = 1; 1416 } 1417 1418 if (changed) { 1419 (void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0); 1420 hfi1_event_pkey_change(dd, port); 1421 } 1422 1423 return 0; 1424 } 1425 1426 static int __subn_set_opa_pkeytable(struct opa_smp *smp, u32 am, u8 *data, 1427 struct ib_device *ibdev, u8 port, 1428 u32 *resp_len) 1429 { 1430 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1431 u32 n_blocks_sent = OPA_AM_NBLK(am); 1432 u32 start_block = am & 0x7ff; 1433 u16 *p = (u16 *)data; 1434 __be16 *q = (__be16 *)data; 1435 int i; 1436 u16 n_blocks_avail; 1437 unsigned npkeys = hfi1_get_npkeys(dd); 1438 1439 if (n_blocks_sent == 0) { 1440 pr_warn("OPA Get PKey AM Invalid : P = %d; B = 0x%x; N = 0x%x\n", 1441 port, start_block, n_blocks_sent); 1442 smp->status |= IB_SMP_INVALID_FIELD; 1443 return reply((struct ib_mad_hdr *)smp); 1444 } 1445 1446 n_blocks_avail = (u16)(npkeys / OPA_PARTITION_TABLE_BLK_SIZE) + 1; 1447 1448 if (start_block + n_blocks_sent > n_blocks_avail || 1449 n_blocks_sent > OPA_NUM_PKEY_BLOCKS_PER_SMP) { 1450 pr_warn("OPA Set PKey AM Invalid : s 0x%x; req 0x%x; avail 0x%x; blk/smp 0x%lx\n", 1451 start_block, n_blocks_sent, n_blocks_avail, 1452 OPA_NUM_PKEY_BLOCKS_PER_SMP); 1453 smp->status |= IB_SMP_INVALID_FIELD; 1454 return reply((struct ib_mad_hdr *)smp); 1455 } 1456 1457 for (i = 0; i < n_blocks_sent * OPA_PARTITION_TABLE_BLK_SIZE; i++) 1458 p[i] = be16_to_cpu(q[i]); 1459 1460 if (start_block == 0 && set_pkeys(dd, port, p) != 0) { 1461 smp->status |= IB_SMP_INVALID_FIELD; 1462 return reply((struct ib_mad_hdr *)smp); 1463 } 1464 1465 return __subn_get_opa_pkeytable(smp, am, data, ibdev, port, resp_len); 1466 } 1467 1468 static int get_sc2vlt_tables(struct hfi1_devdata *dd, void *data) 1469 { 1470 u64 *val = data; 1471 1472 *val++ = read_csr(dd, SEND_SC2VLT0); 1473 *val++ = read_csr(dd, SEND_SC2VLT1); 1474 *val++ = read_csr(dd, SEND_SC2VLT2); 1475 *val++ = read_csr(dd, SEND_SC2VLT3); 1476 return 0; 1477 } 1478 1479 #define ILLEGAL_VL 12 1480 /* 1481 * filter_sc2vlt changes mappings to VL15 to ILLEGAL_VL (except 1482 * for SC15, which must map to VL15). If we don't remap things this 1483 * way it is possible for VL15 counters to increment when we try to 1484 * send on a SC which is mapped to an invalid VL. 1485 */ 1486 static void filter_sc2vlt(void *data) 1487 { 1488 int i; 1489 u8 *pd = data; 1490 1491 for (i = 0; i < OPA_MAX_SCS; i++) { 1492 if (i == 15) 1493 continue; 1494 if ((pd[i] & 0x1f) == 0xf) 1495 pd[i] = ILLEGAL_VL; 1496 } 1497 } 1498 1499 static int set_sc2vlt_tables(struct hfi1_devdata *dd, void *data) 1500 { 1501 u64 *val = data; 1502 1503 filter_sc2vlt(data); 1504 1505 write_csr(dd, SEND_SC2VLT0, *val++); 1506 write_csr(dd, SEND_SC2VLT1, *val++); 1507 write_csr(dd, SEND_SC2VLT2, *val++); 1508 write_csr(dd, SEND_SC2VLT3, *val++); 1509 write_seqlock_irq(&dd->sc2vl_lock); 1510 memcpy(dd->sc2vl, data, sizeof(dd->sc2vl)); 1511 write_sequnlock_irq(&dd->sc2vl_lock); 1512 return 0; 1513 } 1514 1515 static int __subn_get_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data, 1516 struct ib_device *ibdev, u8 port, 1517 u32 *resp_len) 1518 { 1519 struct hfi1_ibport *ibp = to_iport(ibdev, port); 1520 u8 *p = data; 1521 size_t size = ARRAY_SIZE(ibp->sl_to_sc); /* == 32 */ 1522 unsigned i; 1523 1524 if (am) { 1525 smp->status |= IB_SMP_INVALID_FIELD; 1526 return reply((struct ib_mad_hdr *)smp); 1527 } 1528 1529 for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++) 1530 *p++ = ibp->sl_to_sc[i]; 1531 1532 if (resp_len) 1533 *resp_len += size; 1534 1535 return reply((struct ib_mad_hdr *)smp); 1536 } 1537 1538 static int __subn_set_opa_sl_to_sc(struct opa_smp *smp, u32 am, u8 *data, 1539 struct ib_device *ibdev, u8 port, 1540 u32 *resp_len) 1541 { 1542 struct hfi1_ibport *ibp = to_iport(ibdev, port); 1543 u8 *p = data; 1544 int i; 1545 u8 sc; 1546 1547 if (am) { 1548 smp->status |= IB_SMP_INVALID_FIELD; 1549 return reply((struct ib_mad_hdr *)smp); 1550 } 1551 1552 for (i = 0; i < ARRAY_SIZE(ibp->sl_to_sc); i++) { 1553 sc = *p++; 1554 if (ibp->sl_to_sc[i] != sc) { 1555 ibp->sl_to_sc[i] = sc; 1556 1557 /* Put all stale qps into error state */ 1558 hfi1_error_port_qps(ibp, i); 1559 } 1560 } 1561 1562 return __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port, resp_len); 1563 } 1564 1565 static int __subn_get_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data, 1566 struct ib_device *ibdev, u8 port, 1567 u32 *resp_len) 1568 { 1569 struct hfi1_ibport *ibp = to_iport(ibdev, port); 1570 u8 *p = data; 1571 size_t size = ARRAY_SIZE(ibp->sc_to_sl); /* == 32 */ 1572 unsigned i; 1573 1574 if (am) { 1575 smp->status |= IB_SMP_INVALID_FIELD; 1576 return reply((struct ib_mad_hdr *)smp); 1577 } 1578 1579 for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++) 1580 *p++ = ibp->sc_to_sl[i]; 1581 1582 if (resp_len) 1583 *resp_len += size; 1584 1585 return reply((struct ib_mad_hdr *)smp); 1586 } 1587 1588 static int __subn_set_opa_sc_to_sl(struct opa_smp *smp, u32 am, u8 *data, 1589 struct ib_device *ibdev, u8 port, 1590 u32 *resp_len) 1591 { 1592 struct hfi1_ibport *ibp = to_iport(ibdev, port); 1593 u8 *p = data; 1594 int i; 1595 1596 if (am) { 1597 smp->status |= IB_SMP_INVALID_FIELD; 1598 return reply((struct ib_mad_hdr *)smp); 1599 } 1600 1601 for (i = 0; i < ARRAY_SIZE(ibp->sc_to_sl); i++) 1602 ibp->sc_to_sl[i] = *p++; 1603 1604 return __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port, resp_len); 1605 } 1606 1607 static int __subn_get_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data, 1608 struct ib_device *ibdev, u8 port, 1609 u32 *resp_len) 1610 { 1611 u32 n_blocks = OPA_AM_NBLK(am); 1612 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1613 void *vp = (void *)data; 1614 size_t size = 4 * sizeof(u64); 1615 1616 if (n_blocks != 1) { 1617 smp->status |= IB_SMP_INVALID_FIELD; 1618 return reply((struct ib_mad_hdr *)smp); 1619 } 1620 1621 get_sc2vlt_tables(dd, vp); 1622 1623 if (resp_len) 1624 *resp_len += size; 1625 1626 return reply((struct ib_mad_hdr *)smp); 1627 } 1628 1629 static int __subn_set_opa_sc_to_vlt(struct opa_smp *smp, u32 am, u8 *data, 1630 struct ib_device *ibdev, u8 port, 1631 u32 *resp_len) 1632 { 1633 u32 n_blocks = OPA_AM_NBLK(am); 1634 int async_update = OPA_AM_ASYNC(am); 1635 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1636 void *vp = (void *)data; 1637 struct hfi1_pportdata *ppd; 1638 int lstate; 1639 1640 if (n_blocks != 1 || async_update) { 1641 smp->status |= IB_SMP_INVALID_FIELD; 1642 return reply((struct ib_mad_hdr *)smp); 1643 } 1644 1645 /* IB numbers ports from 1, hw from 0 */ 1646 ppd = dd->pport + (port - 1); 1647 lstate = driver_lstate(ppd); 1648 /* 1649 * it's known that async_update is 0 by this point, but include 1650 * the explicit check for clarity 1651 */ 1652 if (!async_update && 1653 (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE)) { 1654 smp->status |= IB_SMP_INVALID_FIELD; 1655 return reply((struct ib_mad_hdr *)smp); 1656 } 1657 1658 set_sc2vlt_tables(dd, vp); 1659 1660 return __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port, resp_len); 1661 } 1662 1663 static int __subn_get_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data, 1664 struct ib_device *ibdev, u8 port, 1665 u32 *resp_len) 1666 { 1667 u32 n_blocks = OPA_AM_NPORT(am); 1668 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1669 struct hfi1_pportdata *ppd; 1670 void *vp = (void *)data; 1671 int size; 1672 1673 if (n_blocks != 1) { 1674 smp->status |= IB_SMP_INVALID_FIELD; 1675 return reply((struct ib_mad_hdr *)smp); 1676 } 1677 1678 ppd = dd->pport + (port - 1); 1679 1680 size = fm_get_table(ppd, FM_TBL_SC2VLNT, vp); 1681 1682 if (resp_len) 1683 *resp_len += size; 1684 1685 return reply((struct ib_mad_hdr *)smp); 1686 } 1687 1688 static int __subn_set_opa_sc_to_vlnt(struct opa_smp *smp, u32 am, u8 *data, 1689 struct ib_device *ibdev, u8 port, 1690 u32 *resp_len) 1691 { 1692 u32 n_blocks = OPA_AM_NPORT(am); 1693 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1694 struct hfi1_pportdata *ppd; 1695 void *vp = (void *)data; 1696 int lstate; 1697 1698 if (n_blocks != 1) { 1699 smp->status |= IB_SMP_INVALID_FIELD; 1700 return reply((struct ib_mad_hdr *)smp); 1701 } 1702 1703 /* IB numbers ports from 1, hw from 0 */ 1704 ppd = dd->pport + (port - 1); 1705 lstate = driver_lstate(ppd); 1706 if (lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE) { 1707 smp->status |= IB_SMP_INVALID_FIELD; 1708 return reply((struct ib_mad_hdr *)smp); 1709 } 1710 1711 ppd = dd->pport + (port - 1); 1712 1713 fm_set_table(ppd, FM_TBL_SC2VLNT, vp); 1714 1715 return __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port, 1716 resp_len); 1717 } 1718 1719 static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data, 1720 struct ib_device *ibdev, u8 port, 1721 u32 *resp_len) 1722 { 1723 u32 nports = OPA_AM_NPORT(am); 1724 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am); 1725 u32 lstate; 1726 struct hfi1_ibport *ibp; 1727 struct hfi1_pportdata *ppd; 1728 struct opa_port_state_info *psi = (struct opa_port_state_info *)data; 1729 1730 if (nports != 1) { 1731 smp->status |= IB_SMP_INVALID_FIELD; 1732 return reply((struct ib_mad_hdr *)smp); 1733 } 1734 1735 ibp = to_iport(ibdev, port); 1736 ppd = ppd_from_ibp(ibp); 1737 1738 lstate = driver_lstate(ppd); 1739 1740 if (start_of_sm_config && (lstate == IB_PORT_INIT)) 1741 ppd->is_sm_config_started = 1; 1742 1743 psi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4; 1744 psi->port_states.ledenable_offlinereason |= 1745 ppd->is_sm_config_started << 5; 1746 psi->port_states.ledenable_offlinereason |= 1747 ppd->offline_disabled_reason; 1748 1749 psi->port_states.portphysstate_portstate = 1750 (hfi1_ibphys_portstate(ppd) << 4) | (lstate & 0xf); 1751 psi->link_width_downgrade_tx_active = 1752 cpu_to_be16(ppd->link_width_downgrade_tx_active); 1753 psi->link_width_downgrade_rx_active = 1754 cpu_to_be16(ppd->link_width_downgrade_rx_active); 1755 if (resp_len) 1756 *resp_len += sizeof(struct opa_port_state_info); 1757 1758 return reply((struct ib_mad_hdr *)smp); 1759 } 1760 1761 static int __subn_set_opa_psi(struct opa_smp *smp, u32 am, u8 *data, 1762 struct ib_device *ibdev, u8 port, 1763 u32 *resp_len) 1764 { 1765 u32 nports = OPA_AM_NPORT(am); 1766 u32 start_of_sm_config = OPA_AM_START_SM_CFG(am); 1767 u32 ls_old; 1768 u8 ls_new, ps_new; 1769 struct hfi1_ibport *ibp; 1770 struct hfi1_pportdata *ppd; 1771 struct opa_port_state_info *psi = (struct opa_port_state_info *)data; 1772 int ret, invalid = 0; 1773 1774 if (nports != 1) { 1775 smp->status |= IB_SMP_INVALID_FIELD; 1776 return reply((struct ib_mad_hdr *)smp); 1777 } 1778 1779 ibp = to_iport(ibdev, port); 1780 ppd = ppd_from_ibp(ibp); 1781 1782 ls_old = driver_lstate(ppd); 1783 1784 ls_new = port_states_to_logical_state(&psi->port_states); 1785 ps_new = port_states_to_phys_state(&psi->port_states); 1786 1787 if (ls_old == IB_PORT_INIT) { 1788 if (start_of_sm_config) { 1789 if (ls_new == ls_old || (ls_new == IB_PORT_ARMED)) 1790 ppd->is_sm_config_started = 1; 1791 } else if (ls_new == IB_PORT_ARMED) { 1792 if (ppd->is_sm_config_started == 0) 1793 invalid = 1; 1794 } 1795 } 1796 1797 ret = set_port_states(ppd, smp, ls_new, ps_new, invalid); 1798 if (ret) 1799 return ret; 1800 1801 if (invalid) 1802 smp->status |= IB_SMP_INVALID_FIELD; 1803 1804 return __subn_get_opa_psi(smp, am, data, ibdev, port, resp_len); 1805 } 1806 1807 static int __subn_get_opa_cable_info(struct opa_smp *smp, u32 am, u8 *data, 1808 struct ib_device *ibdev, u8 port, 1809 u32 *resp_len) 1810 { 1811 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1812 u32 addr = OPA_AM_CI_ADDR(am); 1813 u32 len = OPA_AM_CI_LEN(am) + 1; 1814 int ret; 1815 1816 if (dd->pport->port_type != PORT_TYPE_QSFP) { 1817 smp->status |= IB_SMP_INVALID_FIELD; 1818 return reply((struct ib_mad_hdr *)smp); 1819 } 1820 1821 #define __CI_PAGE_SIZE BIT(7) /* 128 bytes */ 1822 #define __CI_PAGE_MASK ~(__CI_PAGE_SIZE - 1) 1823 #define __CI_PAGE_NUM(a) ((a) & __CI_PAGE_MASK) 1824 1825 /* 1826 * check that addr is within spec, and 1827 * addr and (addr + len - 1) are on the same "page" 1828 */ 1829 if (addr >= 4096 || 1830 (__CI_PAGE_NUM(addr) != __CI_PAGE_NUM(addr + len - 1))) { 1831 smp->status |= IB_SMP_INVALID_FIELD; 1832 return reply((struct ib_mad_hdr *)smp); 1833 } 1834 1835 ret = get_cable_info(dd, port, addr, len, data); 1836 1837 if (ret == -ENODEV) { 1838 smp->status |= IB_SMP_UNSUP_METH_ATTR; 1839 return reply((struct ib_mad_hdr *)smp); 1840 } 1841 1842 /* The address range for the CableInfo SMA query is wider than the 1843 * memory available on the QSFP cable. We want to return a valid 1844 * response, albeit zeroed out, for address ranges beyond available 1845 * memory but that are within the CableInfo query spec 1846 */ 1847 if (ret < 0 && ret != -ERANGE) { 1848 smp->status |= IB_SMP_INVALID_FIELD; 1849 return reply((struct ib_mad_hdr *)smp); 1850 } 1851 1852 if (resp_len) 1853 *resp_len += len; 1854 1855 return reply((struct ib_mad_hdr *)smp); 1856 } 1857 1858 static int __subn_get_opa_bct(struct opa_smp *smp, u32 am, u8 *data, 1859 struct ib_device *ibdev, u8 port, u32 *resp_len) 1860 { 1861 u32 num_ports = OPA_AM_NPORT(am); 1862 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1863 struct hfi1_pportdata *ppd; 1864 struct buffer_control *p = (struct buffer_control *)data; 1865 int size; 1866 1867 if (num_ports != 1) { 1868 smp->status |= IB_SMP_INVALID_FIELD; 1869 return reply((struct ib_mad_hdr *)smp); 1870 } 1871 1872 ppd = dd->pport + (port - 1); 1873 size = fm_get_table(ppd, FM_TBL_BUFFER_CONTROL, p); 1874 trace_bct_get(dd, p); 1875 if (resp_len) 1876 *resp_len += size; 1877 1878 return reply((struct ib_mad_hdr *)smp); 1879 } 1880 1881 static int __subn_set_opa_bct(struct opa_smp *smp, u32 am, u8 *data, 1882 struct ib_device *ibdev, u8 port, u32 *resp_len) 1883 { 1884 u32 num_ports = OPA_AM_NPORT(am); 1885 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 1886 struct hfi1_pportdata *ppd; 1887 struct buffer_control *p = (struct buffer_control *)data; 1888 1889 if (num_ports != 1) { 1890 smp->status |= IB_SMP_INVALID_FIELD; 1891 return reply((struct ib_mad_hdr *)smp); 1892 } 1893 ppd = dd->pport + (port - 1); 1894 trace_bct_set(dd, p); 1895 if (fm_set_table(ppd, FM_TBL_BUFFER_CONTROL, p) < 0) { 1896 smp->status |= IB_SMP_INVALID_FIELD; 1897 return reply((struct ib_mad_hdr *)smp); 1898 } 1899 1900 return __subn_get_opa_bct(smp, am, data, ibdev, port, resp_len); 1901 } 1902 1903 static int __subn_get_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data, 1904 struct ib_device *ibdev, u8 port, 1905 u32 *resp_len) 1906 { 1907 struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port)); 1908 u32 num_ports = OPA_AM_NPORT(am); 1909 u8 section = (am & 0x00ff0000) >> 16; 1910 u8 *p = data; 1911 int size = 0; 1912 1913 if (num_ports != 1) { 1914 smp->status |= IB_SMP_INVALID_FIELD; 1915 return reply((struct ib_mad_hdr *)smp); 1916 } 1917 1918 switch (section) { 1919 case OPA_VLARB_LOW_ELEMENTS: 1920 size = fm_get_table(ppd, FM_TBL_VL_LOW_ARB, p); 1921 break; 1922 case OPA_VLARB_HIGH_ELEMENTS: 1923 size = fm_get_table(ppd, FM_TBL_VL_HIGH_ARB, p); 1924 break; 1925 case OPA_VLARB_PREEMPT_ELEMENTS: 1926 size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_ELEMS, p); 1927 break; 1928 case OPA_VLARB_PREEMPT_MATRIX: 1929 size = fm_get_table(ppd, FM_TBL_VL_PREEMPT_MATRIX, p); 1930 break; 1931 default: 1932 pr_warn("OPA SubnGet(VL Arb) AM Invalid : 0x%x\n", 1933 be32_to_cpu(smp->attr_mod)); 1934 smp->status |= IB_SMP_INVALID_FIELD; 1935 break; 1936 } 1937 1938 if (size > 0 && resp_len) 1939 *resp_len += size; 1940 1941 return reply((struct ib_mad_hdr *)smp); 1942 } 1943 1944 static int __subn_set_opa_vl_arb(struct opa_smp *smp, u32 am, u8 *data, 1945 struct ib_device *ibdev, u8 port, 1946 u32 *resp_len) 1947 { 1948 struct hfi1_pportdata *ppd = ppd_from_ibp(to_iport(ibdev, port)); 1949 u32 num_ports = OPA_AM_NPORT(am); 1950 u8 section = (am & 0x00ff0000) >> 16; 1951 u8 *p = data; 1952 1953 if (num_ports != 1) { 1954 smp->status |= IB_SMP_INVALID_FIELD; 1955 return reply((struct ib_mad_hdr *)smp); 1956 } 1957 1958 switch (section) { 1959 case OPA_VLARB_LOW_ELEMENTS: 1960 (void)fm_set_table(ppd, FM_TBL_VL_LOW_ARB, p); 1961 break; 1962 case OPA_VLARB_HIGH_ELEMENTS: 1963 (void)fm_set_table(ppd, FM_TBL_VL_HIGH_ARB, p); 1964 break; 1965 /* 1966 * neither OPA_VLARB_PREEMPT_ELEMENTS, or OPA_VLARB_PREEMPT_MATRIX 1967 * can be changed from the default values 1968 */ 1969 case OPA_VLARB_PREEMPT_ELEMENTS: 1970 /* FALLTHROUGH */ 1971 case OPA_VLARB_PREEMPT_MATRIX: 1972 smp->status |= IB_SMP_UNSUP_METH_ATTR; 1973 break; 1974 default: 1975 pr_warn("OPA SubnSet(VL Arb) AM Invalid : 0x%x\n", 1976 be32_to_cpu(smp->attr_mod)); 1977 smp->status |= IB_SMP_INVALID_FIELD; 1978 break; 1979 } 1980 1981 return __subn_get_opa_vl_arb(smp, am, data, ibdev, port, resp_len); 1982 } 1983 1984 struct opa_pma_mad { 1985 struct ib_mad_hdr mad_hdr; 1986 u8 data[2024]; 1987 } __packed; 1988 1989 struct opa_class_port_info { 1990 u8 base_version; 1991 u8 class_version; 1992 __be16 cap_mask; 1993 __be32 cap_mask2_resp_time; 1994 1995 u8 redirect_gid[16]; 1996 __be32 redirect_tc_fl; 1997 __be32 redirect_lid; 1998 __be32 redirect_sl_qp; 1999 __be32 redirect_qkey; 2000 2001 u8 trap_gid[16]; 2002 __be32 trap_tc_fl; 2003 __be32 trap_lid; 2004 __be32 trap_hl_qp; 2005 __be32 trap_qkey; 2006 2007 __be16 trap_pkey; 2008 __be16 redirect_pkey; 2009 2010 u8 trap_sl_rsvd; 2011 u8 reserved[3]; 2012 } __packed; 2013 2014 struct opa_port_status_req { 2015 __u8 port_num; 2016 __u8 reserved[3]; 2017 __be32 vl_select_mask; 2018 }; 2019 2020 #define VL_MASK_ALL 0x000080ff 2021 2022 struct opa_port_status_rsp { 2023 __u8 port_num; 2024 __u8 reserved[3]; 2025 __be32 vl_select_mask; 2026 2027 /* Data counters */ 2028 __be64 port_xmit_data; 2029 __be64 port_rcv_data; 2030 __be64 port_xmit_pkts; 2031 __be64 port_rcv_pkts; 2032 __be64 port_multicast_xmit_pkts; 2033 __be64 port_multicast_rcv_pkts; 2034 __be64 port_xmit_wait; 2035 __be64 sw_port_congestion; 2036 __be64 port_rcv_fecn; 2037 __be64 port_rcv_becn; 2038 __be64 port_xmit_time_cong; 2039 __be64 port_xmit_wasted_bw; 2040 __be64 port_xmit_wait_data; 2041 __be64 port_rcv_bubble; 2042 __be64 port_mark_fecn; 2043 /* Error counters */ 2044 __be64 port_rcv_constraint_errors; 2045 __be64 port_rcv_switch_relay_errors; 2046 __be64 port_xmit_discards; 2047 __be64 port_xmit_constraint_errors; 2048 __be64 port_rcv_remote_physical_errors; 2049 __be64 local_link_integrity_errors; 2050 __be64 port_rcv_errors; 2051 __be64 excessive_buffer_overruns; 2052 __be64 fm_config_errors; 2053 __be32 link_error_recovery; 2054 __be32 link_downed; 2055 u8 uncorrectable_errors; 2056 2057 u8 link_quality_indicator; /* 5res, 3bit */ 2058 u8 res2[6]; 2059 struct _vls_pctrs { 2060 /* per-VL Data counters */ 2061 __be64 port_vl_xmit_data; 2062 __be64 port_vl_rcv_data; 2063 __be64 port_vl_xmit_pkts; 2064 __be64 port_vl_rcv_pkts; 2065 __be64 port_vl_xmit_wait; 2066 __be64 sw_port_vl_congestion; 2067 __be64 port_vl_rcv_fecn; 2068 __be64 port_vl_rcv_becn; 2069 __be64 port_xmit_time_cong; 2070 __be64 port_vl_xmit_wasted_bw; 2071 __be64 port_vl_xmit_wait_data; 2072 __be64 port_vl_rcv_bubble; 2073 __be64 port_vl_mark_fecn; 2074 __be64 port_vl_xmit_discards; 2075 } vls[0]; /* real array size defined by # bits set in vl_select_mask */ 2076 }; 2077 2078 enum counter_selects { 2079 CS_PORT_XMIT_DATA = (1 << 31), 2080 CS_PORT_RCV_DATA = (1 << 30), 2081 CS_PORT_XMIT_PKTS = (1 << 29), 2082 CS_PORT_RCV_PKTS = (1 << 28), 2083 CS_PORT_MCAST_XMIT_PKTS = (1 << 27), 2084 CS_PORT_MCAST_RCV_PKTS = (1 << 26), 2085 CS_PORT_XMIT_WAIT = (1 << 25), 2086 CS_SW_PORT_CONGESTION = (1 << 24), 2087 CS_PORT_RCV_FECN = (1 << 23), 2088 CS_PORT_RCV_BECN = (1 << 22), 2089 CS_PORT_XMIT_TIME_CONG = (1 << 21), 2090 CS_PORT_XMIT_WASTED_BW = (1 << 20), 2091 CS_PORT_XMIT_WAIT_DATA = (1 << 19), 2092 CS_PORT_RCV_BUBBLE = (1 << 18), 2093 CS_PORT_MARK_FECN = (1 << 17), 2094 CS_PORT_RCV_CONSTRAINT_ERRORS = (1 << 16), 2095 CS_PORT_RCV_SWITCH_RELAY_ERRORS = (1 << 15), 2096 CS_PORT_XMIT_DISCARDS = (1 << 14), 2097 CS_PORT_XMIT_CONSTRAINT_ERRORS = (1 << 13), 2098 CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS = (1 << 12), 2099 CS_LOCAL_LINK_INTEGRITY_ERRORS = (1 << 11), 2100 CS_PORT_RCV_ERRORS = (1 << 10), 2101 CS_EXCESSIVE_BUFFER_OVERRUNS = (1 << 9), 2102 CS_FM_CONFIG_ERRORS = (1 << 8), 2103 CS_LINK_ERROR_RECOVERY = (1 << 7), 2104 CS_LINK_DOWNED = (1 << 6), 2105 CS_UNCORRECTABLE_ERRORS = (1 << 5), 2106 }; 2107 2108 struct opa_clear_port_status { 2109 __be64 port_select_mask[4]; 2110 __be32 counter_select_mask; 2111 }; 2112 2113 struct opa_aggregate { 2114 __be16 attr_id; 2115 __be16 err_reqlength; /* 1 bit, 8 res, 7 bit */ 2116 __be32 attr_mod; 2117 u8 data[0]; 2118 }; 2119 2120 #define MSK_LLI 0x000000f0 2121 #define MSK_LLI_SFT 4 2122 #define MSK_LER 0x0000000f 2123 #define MSK_LER_SFT 0 2124 #define ADD_LLI 8 2125 #define ADD_LER 2 2126 2127 /* Request contains first three fields, response contains those plus the rest */ 2128 struct opa_port_data_counters_msg { 2129 __be64 port_select_mask[4]; 2130 __be32 vl_select_mask; 2131 __be32 resolution; 2132 2133 /* Response fields follow */ 2134 struct _port_dctrs { 2135 u8 port_number; 2136 u8 reserved2[3]; 2137 __be32 link_quality_indicator; /* 29res, 3bit */ 2138 2139 /* Data counters */ 2140 __be64 port_xmit_data; 2141 __be64 port_rcv_data; 2142 __be64 port_xmit_pkts; 2143 __be64 port_rcv_pkts; 2144 __be64 port_multicast_xmit_pkts; 2145 __be64 port_multicast_rcv_pkts; 2146 __be64 port_xmit_wait; 2147 __be64 sw_port_congestion; 2148 __be64 port_rcv_fecn; 2149 __be64 port_rcv_becn; 2150 __be64 port_xmit_time_cong; 2151 __be64 port_xmit_wasted_bw; 2152 __be64 port_xmit_wait_data; 2153 __be64 port_rcv_bubble; 2154 __be64 port_mark_fecn; 2155 2156 __be64 port_error_counter_summary; 2157 /* Sum of error counts/port */ 2158 2159 struct _vls_dctrs { 2160 /* per-VL Data counters */ 2161 __be64 port_vl_xmit_data; 2162 __be64 port_vl_rcv_data; 2163 __be64 port_vl_xmit_pkts; 2164 __be64 port_vl_rcv_pkts; 2165 __be64 port_vl_xmit_wait; 2166 __be64 sw_port_vl_congestion; 2167 __be64 port_vl_rcv_fecn; 2168 __be64 port_vl_rcv_becn; 2169 __be64 port_xmit_time_cong; 2170 __be64 port_vl_xmit_wasted_bw; 2171 __be64 port_vl_xmit_wait_data; 2172 __be64 port_vl_rcv_bubble; 2173 __be64 port_vl_mark_fecn; 2174 } vls[0]; 2175 /* array size defined by #bits set in vl_select_mask*/ 2176 } port[1]; /* array size defined by #ports in attribute modifier */ 2177 }; 2178 2179 struct opa_port_error_counters64_msg { 2180 /* 2181 * Request contains first two fields, response contains the 2182 * whole magilla 2183 */ 2184 __be64 port_select_mask[4]; 2185 __be32 vl_select_mask; 2186 2187 /* Response-only fields follow */ 2188 __be32 reserved1; 2189 struct _port_ectrs { 2190 u8 port_number; 2191 u8 reserved2[7]; 2192 __be64 port_rcv_constraint_errors; 2193 __be64 port_rcv_switch_relay_errors; 2194 __be64 port_xmit_discards; 2195 __be64 port_xmit_constraint_errors; 2196 __be64 port_rcv_remote_physical_errors; 2197 __be64 local_link_integrity_errors; 2198 __be64 port_rcv_errors; 2199 __be64 excessive_buffer_overruns; 2200 __be64 fm_config_errors; 2201 __be32 link_error_recovery; 2202 __be32 link_downed; 2203 u8 uncorrectable_errors; 2204 u8 reserved3[7]; 2205 struct _vls_ectrs { 2206 __be64 port_vl_xmit_discards; 2207 } vls[0]; 2208 /* array size defined by #bits set in vl_select_mask */ 2209 } port[1]; /* array size defined by #ports in attribute modifier */ 2210 }; 2211 2212 struct opa_port_error_info_msg { 2213 __be64 port_select_mask[4]; 2214 __be32 error_info_select_mask; 2215 __be32 reserved1; 2216 struct _port_ei { 2217 u8 port_number; 2218 u8 reserved2[7]; 2219 2220 /* PortRcvErrorInfo */ 2221 struct { 2222 u8 status_and_code; 2223 union { 2224 u8 raw[17]; 2225 struct { 2226 /* EI1to12 format */ 2227 u8 packet_flit1[8]; 2228 u8 packet_flit2[8]; 2229 u8 remaining_flit_bits12; 2230 } ei1to12; 2231 struct { 2232 u8 packet_bytes[8]; 2233 u8 remaining_flit_bits; 2234 } ei13; 2235 } ei; 2236 u8 reserved3[6]; 2237 } __packed port_rcv_ei; 2238 2239 /* ExcessiveBufferOverrunInfo */ 2240 struct { 2241 u8 status_and_sc; 2242 u8 reserved4[7]; 2243 } __packed excessive_buffer_overrun_ei; 2244 2245 /* PortXmitConstraintErrorInfo */ 2246 struct { 2247 u8 status; 2248 u8 reserved5; 2249 __be16 pkey; 2250 __be32 slid; 2251 } __packed port_xmit_constraint_ei; 2252 2253 /* PortRcvConstraintErrorInfo */ 2254 struct { 2255 u8 status; 2256 u8 reserved6; 2257 __be16 pkey; 2258 __be32 slid; 2259 } __packed port_rcv_constraint_ei; 2260 2261 /* PortRcvSwitchRelayErrorInfo */ 2262 struct { 2263 u8 status_and_code; 2264 u8 reserved7[3]; 2265 __u32 error_info; 2266 } __packed port_rcv_switch_relay_ei; 2267 2268 /* UncorrectableErrorInfo */ 2269 struct { 2270 u8 status_and_code; 2271 u8 reserved8; 2272 } __packed uncorrectable_ei; 2273 2274 /* FMConfigErrorInfo */ 2275 struct { 2276 u8 status_and_code; 2277 u8 error_info; 2278 } __packed fm_config_ei; 2279 __u32 reserved9; 2280 } port[1]; /* actual array size defined by #ports in attr modifier */ 2281 }; 2282 2283 /* opa_port_error_info_msg error_info_select_mask bit definitions */ 2284 enum error_info_selects { 2285 ES_PORT_RCV_ERROR_INFO = (1 << 31), 2286 ES_EXCESSIVE_BUFFER_OVERRUN_INFO = (1 << 30), 2287 ES_PORT_XMIT_CONSTRAINT_ERROR_INFO = (1 << 29), 2288 ES_PORT_RCV_CONSTRAINT_ERROR_INFO = (1 << 28), 2289 ES_PORT_RCV_SWITCH_RELAY_ERROR_INFO = (1 << 27), 2290 ES_UNCORRECTABLE_ERROR_INFO = (1 << 26), 2291 ES_FM_CONFIG_ERROR_INFO = (1 << 25) 2292 }; 2293 2294 static int pma_get_opa_classportinfo(struct opa_pma_mad *pmp, 2295 struct ib_device *ibdev, u32 *resp_len) 2296 { 2297 struct opa_class_port_info *p = 2298 (struct opa_class_port_info *)pmp->data; 2299 2300 memset(pmp->data, 0, sizeof(pmp->data)); 2301 2302 if (pmp->mad_hdr.attr_mod != 0) 2303 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2304 2305 p->base_version = OPA_MGMT_BASE_VERSION; 2306 p->class_version = OPA_SM_CLASS_VERSION; 2307 /* 2308 * Expected response time is 4.096 usec. * 2^18 == 1.073741824 sec. 2309 */ 2310 p->cap_mask2_resp_time = cpu_to_be32(18); 2311 2312 if (resp_len) 2313 *resp_len += sizeof(*p); 2314 2315 return reply((struct ib_mad_hdr *)pmp); 2316 } 2317 2318 static void a0_portstatus(struct hfi1_pportdata *ppd, 2319 struct opa_port_status_rsp *rsp, u32 vl_select_mask) 2320 { 2321 if (!is_bx(ppd->dd)) { 2322 unsigned long vl; 2323 u64 sum_vl_xmit_wait = 0; 2324 u32 vl_all_mask = VL_MASK_ALL; 2325 2326 for_each_set_bit(vl, (unsigned long *)&(vl_all_mask), 2327 8 * sizeof(vl_all_mask)) { 2328 u64 tmp = sum_vl_xmit_wait + 2329 read_port_cntr(ppd, C_TX_WAIT_VL, 2330 idx_from_vl(vl)); 2331 if (tmp < sum_vl_xmit_wait) { 2332 /* we wrapped */ 2333 sum_vl_xmit_wait = (u64)~0; 2334 break; 2335 } 2336 sum_vl_xmit_wait = tmp; 2337 } 2338 if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait) 2339 rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait); 2340 } 2341 } 2342 2343 static int pma_get_opa_portstatus(struct opa_pma_mad *pmp, 2344 struct ib_device *ibdev, 2345 u8 port, u32 *resp_len) 2346 { 2347 struct opa_port_status_req *req = 2348 (struct opa_port_status_req *)pmp->data; 2349 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2350 struct opa_port_status_rsp *rsp; 2351 u32 vl_select_mask = be32_to_cpu(req->vl_select_mask); 2352 unsigned long vl; 2353 size_t response_data_size; 2354 u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24; 2355 u8 port_num = req->port_num; 2356 u8 num_vls = hweight32(vl_select_mask); 2357 struct _vls_pctrs *vlinfo; 2358 struct hfi1_ibport *ibp = to_iport(ibdev, port); 2359 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 2360 int vfi; 2361 u64 tmp, tmp2; 2362 2363 response_data_size = sizeof(struct opa_port_status_rsp) + 2364 num_vls * sizeof(struct _vls_pctrs); 2365 if (response_data_size > sizeof(pmp->data)) { 2366 pmp->mad_hdr.status |= OPA_PM_STATUS_REQUEST_TOO_LARGE; 2367 return reply((struct ib_mad_hdr *)pmp); 2368 } 2369 2370 if (nports != 1 || (port_num && port_num != port) || 2371 num_vls > OPA_MAX_VLS || (vl_select_mask & ~VL_MASK_ALL)) { 2372 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2373 return reply((struct ib_mad_hdr *)pmp); 2374 } 2375 2376 memset(pmp->data, 0, sizeof(pmp->data)); 2377 2378 rsp = (struct opa_port_status_rsp *)pmp->data; 2379 if (port_num) 2380 rsp->port_num = port_num; 2381 else 2382 rsp->port_num = port; 2383 2384 rsp->port_rcv_constraint_errors = 2385 cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR, 2386 CNTR_INVALID_VL)); 2387 2388 hfi1_read_link_quality(dd, &rsp->link_quality_indicator); 2389 2390 rsp->vl_select_mask = cpu_to_be32(vl_select_mask); 2391 rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS, 2392 CNTR_INVALID_VL)); 2393 rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS, 2394 CNTR_INVALID_VL)); 2395 rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS, 2396 CNTR_INVALID_VL)); 2397 rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS, 2398 CNTR_INVALID_VL)); 2399 rsp->port_multicast_xmit_pkts = 2400 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS, 2401 CNTR_INVALID_VL)); 2402 rsp->port_multicast_rcv_pkts = 2403 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS, 2404 CNTR_INVALID_VL)); 2405 rsp->port_xmit_wait = 2406 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL)); 2407 rsp->port_rcv_fecn = 2408 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL)); 2409 rsp->port_rcv_becn = 2410 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL)); 2411 rsp->port_xmit_discards = 2412 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD, 2413 CNTR_INVALID_VL)); 2414 rsp->port_xmit_constraint_errors = 2415 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR, 2416 CNTR_INVALID_VL)); 2417 rsp->port_rcv_remote_physical_errors = 2418 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR, 2419 CNTR_INVALID_VL)); 2420 rsp->local_link_integrity_errors = 2421 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_REPLAY, 2422 CNTR_INVALID_VL)); 2423 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL); 2424 tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, 2425 CNTR_INVALID_VL); 2426 if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) { 2427 /* overflow/wrapped */ 2428 rsp->link_error_recovery = cpu_to_be32(~0); 2429 } else { 2430 rsp->link_error_recovery = cpu_to_be32(tmp2); 2431 } 2432 rsp->port_rcv_errors = 2433 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL)); 2434 rsp->excessive_buffer_overruns = 2435 cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL)); 2436 rsp->fm_config_errors = 2437 cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR, 2438 CNTR_INVALID_VL)); 2439 rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN, 2440 CNTR_INVALID_VL)); 2441 2442 /* rsp->uncorrectable_errors is 8 bits wide, and it pegs at 0xff */ 2443 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL); 2444 rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff; 2445 2446 vlinfo = &rsp->vls[0]; 2447 vfi = 0; 2448 /* The vl_select_mask has been checked above, and we know 2449 * that it contains only entries which represent valid VLs. 2450 * So in the for_each_set_bit() loop below, we don't need 2451 * any additional checks for vl. 2452 */ 2453 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask), 2454 8 * sizeof(vl_select_mask)) { 2455 memset(vlinfo, 0, sizeof(*vlinfo)); 2456 2457 tmp = read_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl)); 2458 rsp->vls[vfi].port_vl_rcv_data = cpu_to_be64(tmp); 2459 2460 rsp->vls[vfi].port_vl_rcv_pkts = 2461 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL, 2462 idx_from_vl(vl))); 2463 2464 rsp->vls[vfi].port_vl_xmit_data = 2465 cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL, 2466 idx_from_vl(vl))); 2467 2468 rsp->vls[vfi].port_vl_xmit_pkts = 2469 cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL, 2470 idx_from_vl(vl))); 2471 2472 rsp->vls[vfi].port_vl_xmit_wait = 2473 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL, 2474 idx_from_vl(vl))); 2475 2476 rsp->vls[vfi].port_vl_rcv_fecn = 2477 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL, 2478 idx_from_vl(vl))); 2479 2480 rsp->vls[vfi].port_vl_rcv_becn = 2481 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL, 2482 idx_from_vl(vl))); 2483 2484 rsp->vls[vfi].port_vl_xmit_discards = 2485 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD_VL, 2486 idx_from_vl(vl))); 2487 vlinfo++; 2488 vfi++; 2489 } 2490 2491 a0_portstatus(ppd, rsp, vl_select_mask); 2492 2493 if (resp_len) 2494 *resp_len += response_data_size; 2495 2496 return reply((struct ib_mad_hdr *)pmp); 2497 } 2498 2499 static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port, 2500 u8 res_lli, u8 res_ler) 2501 { 2502 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2503 struct hfi1_ibport *ibp = to_iport(ibdev, port); 2504 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 2505 u64 error_counter_summary = 0, tmp; 2506 2507 error_counter_summary += read_port_cntr(ppd, C_SW_RCV_CSTR_ERR, 2508 CNTR_INVALID_VL); 2509 /* port_rcv_switch_relay_errors is 0 for HFIs */ 2510 error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_DSCD, 2511 CNTR_INVALID_VL); 2512 error_counter_summary += read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR, 2513 CNTR_INVALID_VL); 2514 error_counter_summary += read_dev_cntr(dd, C_DC_RMT_PHY_ERR, 2515 CNTR_INVALID_VL); 2516 /* local link integrity must be right-shifted by the lli resolution */ 2517 error_counter_summary += (read_dev_cntr(dd, C_DC_RX_REPLAY, 2518 CNTR_INVALID_VL) >> res_lli); 2519 /* link error recovery must b right-shifted by the ler resolution */ 2520 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL); 2521 tmp += read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, CNTR_INVALID_VL); 2522 error_counter_summary += (tmp >> res_ler); 2523 error_counter_summary += read_dev_cntr(dd, C_DC_RCV_ERR, 2524 CNTR_INVALID_VL); 2525 error_counter_summary += read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL); 2526 error_counter_summary += read_dev_cntr(dd, C_DC_FM_CFG_ERR, 2527 CNTR_INVALID_VL); 2528 /* ppd->link_downed is a 32-bit value */ 2529 error_counter_summary += read_port_cntr(ppd, C_SW_LINK_DOWN, 2530 CNTR_INVALID_VL); 2531 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL); 2532 /* this is an 8-bit quantity */ 2533 error_counter_summary += tmp < 0x100 ? (tmp & 0xff) : 0xff; 2534 2535 return error_counter_summary; 2536 } 2537 2538 static void a0_datacounters(struct hfi1_pportdata *ppd, struct _port_dctrs *rsp, 2539 u32 vl_select_mask) 2540 { 2541 if (!is_bx(ppd->dd)) { 2542 unsigned long vl; 2543 u64 sum_vl_xmit_wait = 0; 2544 u32 vl_all_mask = VL_MASK_ALL; 2545 2546 for_each_set_bit(vl, (unsigned long *)&(vl_all_mask), 2547 8 * sizeof(vl_all_mask)) { 2548 u64 tmp = sum_vl_xmit_wait + 2549 read_port_cntr(ppd, C_TX_WAIT_VL, 2550 idx_from_vl(vl)); 2551 if (tmp < sum_vl_xmit_wait) { 2552 /* we wrapped */ 2553 sum_vl_xmit_wait = (u64)~0; 2554 break; 2555 } 2556 sum_vl_xmit_wait = tmp; 2557 } 2558 if (be64_to_cpu(rsp->port_xmit_wait) > sum_vl_xmit_wait) 2559 rsp->port_xmit_wait = cpu_to_be64(sum_vl_xmit_wait); 2560 } 2561 } 2562 2563 static void pma_get_opa_port_dctrs(struct ib_device *ibdev, 2564 struct _port_dctrs *rsp) 2565 { 2566 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2567 2568 rsp->port_xmit_data = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_FLITS, 2569 CNTR_INVALID_VL)); 2570 rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS, 2571 CNTR_INVALID_VL)); 2572 rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS, 2573 CNTR_INVALID_VL)); 2574 rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS, 2575 CNTR_INVALID_VL)); 2576 rsp->port_multicast_xmit_pkts = 2577 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_XMIT_PKTS, 2578 CNTR_INVALID_VL)); 2579 rsp->port_multicast_rcv_pkts = 2580 cpu_to_be64(read_dev_cntr(dd, C_DC_MC_RCV_PKTS, 2581 CNTR_INVALID_VL)); 2582 } 2583 2584 static int pma_get_opa_datacounters(struct opa_pma_mad *pmp, 2585 struct ib_device *ibdev, 2586 u8 port, u32 *resp_len) 2587 { 2588 struct opa_port_data_counters_msg *req = 2589 (struct opa_port_data_counters_msg *)pmp->data; 2590 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2591 struct hfi1_ibport *ibp = to_iport(ibdev, port); 2592 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 2593 struct _port_dctrs *rsp; 2594 struct _vls_dctrs *vlinfo; 2595 size_t response_data_size; 2596 u32 num_ports; 2597 u8 num_pslm; 2598 u8 lq, num_vls; 2599 u8 res_lli, res_ler; 2600 u64 port_mask; 2601 u8 port_num; 2602 unsigned long vl; 2603 u32 vl_select_mask; 2604 int vfi; 2605 2606 num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24; 2607 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3])); 2608 num_vls = hweight32(be32_to_cpu(req->vl_select_mask)); 2609 vl_select_mask = be32_to_cpu(req->vl_select_mask); 2610 res_lli = (u8)(be32_to_cpu(req->resolution) & MSK_LLI) >> MSK_LLI_SFT; 2611 res_lli = res_lli ? res_lli + ADD_LLI : 0; 2612 res_ler = (u8)(be32_to_cpu(req->resolution) & MSK_LER) >> MSK_LER_SFT; 2613 res_ler = res_ler ? res_ler + ADD_LER : 0; 2614 2615 if (num_ports != 1 || (vl_select_mask & ~VL_MASK_ALL)) { 2616 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2617 return reply((struct ib_mad_hdr *)pmp); 2618 } 2619 2620 /* Sanity check */ 2621 response_data_size = sizeof(struct opa_port_data_counters_msg) + 2622 num_vls * sizeof(struct _vls_dctrs); 2623 2624 if (response_data_size > sizeof(pmp->data)) { 2625 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2626 return reply((struct ib_mad_hdr *)pmp); 2627 } 2628 2629 /* 2630 * The bit set in the mask needs to be consistent with the 2631 * port the request came in on. 2632 */ 2633 port_mask = be64_to_cpu(req->port_select_mask[3]); 2634 port_num = find_first_bit((unsigned long *)&port_mask, 2635 sizeof(port_mask) * 8); 2636 2637 if (port_num != port) { 2638 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2639 return reply((struct ib_mad_hdr *)pmp); 2640 } 2641 2642 rsp = &req->port[0]; 2643 memset(rsp, 0, sizeof(*rsp)); 2644 2645 rsp->port_number = port; 2646 /* 2647 * Note that link_quality_indicator is a 32 bit quantity in 2648 * 'datacounters' queries (as opposed to 'portinfo' queries, 2649 * where it's a byte). 2650 */ 2651 hfi1_read_link_quality(dd, &lq); 2652 rsp->link_quality_indicator = cpu_to_be32((u32)lq); 2653 pma_get_opa_port_dctrs(ibdev, rsp); 2654 2655 rsp->port_xmit_wait = 2656 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL)); 2657 rsp->port_rcv_fecn = 2658 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL)); 2659 rsp->port_rcv_becn = 2660 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL)); 2661 rsp->port_error_counter_summary = 2662 cpu_to_be64(get_error_counter_summary(ibdev, port, 2663 res_lli, res_ler)); 2664 2665 vlinfo = &rsp->vls[0]; 2666 vfi = 0; 2667 /* The vl_select_mask has been checked above, and we know 2668 * that it contains only entries which represent valid VLs. 2669 * So in the for_each_set_bit() loop below, we don't need 2670 * any additional checks for vl. 2671 */ 2672 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask), 2673 8 * sizeof(req->vl_select_mask)) { 2674 memset(vlinfo, 0, sizeof(*vlinfo)); 2675 2676 rsp->vls[vfi].port_vl_xmit_data = 2677 cpu_to_be64(read_port_cntr(ppd, C_TX_FLIT_VL, 2678 idx_from_vl(vl))); 2679 2680 rsp->vls[vfi].port_vl_rcv_data = 2681 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_FLIT_VL, 2682 idx_from_vl(vl))); 2683 2684 rsp->vls[vfi].port_vl_xmit_pkts = 2685 cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL, 2686 idx_from_vl(vl))); 2687 2688 rsp->vls[vfi].port_vl_rcv_pkts = 2689 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL, 2690 idx_from_vl(vl))); 2691 2692 rsp->vls[vfi].port_vl_xmit_wait = 2693 cpu_to_be64(read_port_cntr(ppd, C_TX_WAIT_VL, 2694 idx_from_vl(vl))); 2695 2696 rsp->vls[vfi].port_vl_rcv_fecn = 2697 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FCN_VL, 2698 idx_from_vl(vl))); 2699 rsp->vls[vfi].port_vl_rcv_becn = 2700 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN_VL, 2701 idx_from_vl(vl))); 2702 2703 /* rsp->port_vl_xmit_time_cong is 0 for HFIs */ 2704 /* rsp->port_vl_xmit_wasted_bw ??? */ 2705 /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ??? 2706 * does this differ from rsp->vls[vfi].port_vl_xmit_wait 2707 */ 2708 /*rsp->vls[vfi].port_vl_mark_fecn = 2709 * cpu_to_be64(read_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT 2710 * + offset)); 2711 */ 2712 vlinfo++; 2713 vfi++; 2714 } 2715 2716 a0_datacounters(ppd, rsp, vl_select_mask); 2717 2718 if (resp_len) 2719 *resp_len += response_data_size; 2720 2721 return reply((struct ib_mad_hdr *)pmp); 2722 } 2723 2724 static int pma_get_ib_portcounters_ext(struct ib_pma_mad *pmp, 2725 struct ib_device *ibdev, u8 port) 2726 { 2727 struct ib_pma_portcounters_ext *p = (struct ib_pma_portcounters_ext *) 2728 pmp->data; 2729 struct _port_dctrs rsp; 2730 2731 if (pmp->mad_hdr.attr_mod != 0 || p->port_select != port) { 2732 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2733 goto bail; 2734 } 2735 2736 memset(&rsp, 0, sizeof(rsp)); 2737 pma_get_opa_port_dctrs(ibdev, &rsp); 2738 2739 p->port_xmit_data = rsp.port_xmit_data; 2740 p->port_rcv_data = rsp.port_rcv_data; 2741 p->port_xmit_packets = rsp.port_xmit_pkts; 2742 p->port_rcv_packets = rsp.port_rcv_pkts; 2743 p->port_unicast_xmit_packets = 0; 2744 p->port_unicast_rcv_packets = 0; 2745 p->port_multicast_xmit_packets = rsp.port_multicast_xmit_pkts; 2746 p->port_multicast_rcv_packets = rsp.port_multicast_rcv_pkts; 2747 2748 bail: 2749 return reply((struct ib_mad_hdr *)pmp); 2750 } 2751 2752 static void pma_get_opa_port_ectrs(struct ib_device *ibdev, 2753 struct _port_ectrs *rsp, u8 port) 2754 { 2755 u64 tmp, tmp2; 2756 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2757 struct hfi1_ibport *ibp = to_iport(ibdev, port); 2758 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 2759 2760 tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL); 2761 tmp2 = tmp + read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, 2762 CNTR_INVALID_VL); 2763 if (tmp2 > (u32)UINT_MAX || tmp2 < tmp) { 2764 /* overflow/wrapped */ 2765 rsp->link_error_recovery = cpu_to_be32(~0); 2766 } else { 2767 rsp->link_error_recovery = cpu_to_be32(tmp2); 2768 } 2769 2770 rsp->link_downed = cpu_to_be32(read_port_cntr(ppd, C_SW_LINK_DOWN, 2771 CNTR_INVALID_VL)); 2772 rsp->port_rcv_errors = 2773 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL)); 2774 rsp->port_rcv_remote_physical_errors = 2775 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR, 2776 CNTR_INVALID_VL)); 2777 rsp->port_rcv_switch_relay_errors = 0; 2778 rsp->port_xmit_discards = 2779 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD, 2780 CNTR_INVALID_VL)); 2781 rsp->port_xmit_constraint_errors = 2782 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_CSTR_ERR, 2783 CNTR_INVALID_VL)); 2784 rsp->port_rcv_constraint_errors = 2785 cpu_to_be64(read_port_cntr(ppd, C_SW_RCV_CSTR_ERR, 2786 CNTR_INVALID_VL)); 2787 rsp->local_link_integrity_errors = 2788 cpu_to_be64(read_dev_cntr(dd, C_DC_RX_REPLAY, 2789 CNTR_INVALID_VL)); 2790 rsp->excessive_buffer_overruns = 2791 cpu_to_be64(read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL)); 2792 } 2793 2794 static int pma_get_opa_porterrors(struct opa_pma_mad *pmp, 2795 struct ib_device *ibdev, 2796 u8 port, u32 *resp_len) 2797 { 2798 size_t response_data_size; 2799 struct _port_ectrs *rsp; 2800 u8 port_num; 2801 struct opa_port_error_counters64_msg *req; 2802 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2803 u32 num_ports; 2804 u8 num_pslm; 2805 u8 num_vls; 2806 struct hfi1_ibport *ibp; 2807 struct hfi1_pportdata *ppd; 2808 struct _vls_ectrs *vlinfo; 2809 unsigned long vl; 2810 u64 port_mask, tmp; 2811 u32 vl_select_mask; 2812 int vfi; 2813 2814 req = (struct opa_port_error_counters64_msg *)pmp->data; 2815 2816 num_ports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24; 2817 2818 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3])); 2819 num_vls = hweight32(be32_to_cpu(req->vl_select_mask)); 2820 2821 if (num_ports != 1 || num_ports != num_pslm) { 2822 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2823 return reply((struct ib_mad_hdr *)pmp); 2824 } 2825 2826 response_data_size = sizeof(struct opa_port_error_counters64_msg) + 2827 num_vls * sizeof(struct _vls_ectrs); 2828 2829 if (response_data_size > sizeof(pmp->data)) { 2830 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2831 return reply((struct ib_mad_hdr *)pmp); 2832 } 2833 /* 2834 * The bit set in the mask needs to be consistent with the 2835 * port the request came in on. 2836 */ 2837 port_mask = be64_to_cpu(req->port_select_mask[3]); 2838 port_num = find_first_bit((unsigned long *)&port_mask, 2839 sizeof(port_mask) * 8); 2840 2841 if (port_num != port) { 2842 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2843 return reply((struct ib_mad_hdr *)pmp); 2844 } 2845 2846 rsp = &req->port[0]; 2847 2848 ibp = to_iport(ibdev, port_num); 2849 ppd = ppd_from_ibp(ibp); 2850 2851 memset(rsp, 0, sizeof(*rsp)); 2852 rsp->port_number = port_num; 2853 2854 pma_get_opa_port_ectrs(ibdev, rsp, port_num); 2855 2856 rsp->port_rcv_remote_physical_errors = 2857 cpu_to_be64(read_dev_cntr(dd, C_DC_RMT_PHY_ERR, 2858 CNTR_INVALID_VL)); 2859 rsp->fm_config_errors = 2860 cpu_to_be64(read_dev_cntr(dd, C_DC_FM_CFG_ERR, 2861 CNTR_INVALID_VL)); 2862 tmp = read_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL); 2863 2864 rsp->uncorrectable_errors = tmp < 0x100 ? (tmp & 0xff) : 0xff; 2865 rsp->port_rcv_errors = 2866 cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL)); 2867 vlinfo = &rsp->vls[0]; 2868 vfi = 0; 2869 vl_select_mask = be32_to_cpu(req->vl_select_mask); 2870 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask), 2871 8 * sizeof(req->vl_select_mask)) { 2872 memset(vlinfo, 0, sizeof(*vlinfo)); 2873 rsp->vls[vfi].port_vl_xmit_discards = 2874 cpu_to_be64(read_port_cntr(ppd, C_SW_XMIT_DSCD_VL, 2875 idx_from_vl(vl))); 2876 vlinfo += 1; 2877 vfi++; 2878 } 2879 2880 if (resp_len) 2881 *resp_len += response_data_size; 2882 2883 return reply((struct ib_mad_hdr *)pmp); 2884 } 2885 2886 static int pma_get_ib_portcounters(struct ib_pma_mad *pmp, 2887 struct ib_device *ibdev, u8 port) 2888 { 2889 struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) 2890 pmp->data; 2891 struct _port_ectrs rsp; 2892 u64 temp_link_overrun_errors; 2893 u64 temp_64; 2894 u32 temp_32; 2895 2896 memset(&rsp, 0, sizeof(rsp)); 2897 pma_get_opa_port_ectrs(ibdev, &rsp, port); 2898 2899 if (pmp->mad_hdr.attr_mod != 0 || p->port_select != port) { 2900 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2901 goto bail; 2902 } 2903 2904 p->symbol_error_counter = 0; /* N/A for OPA */ 2905 2906 temp_32 = be32_to_cpu(rsp.link_error_recovery); 2907 if (temp_32 > 0xFFUL) 2908 p->link_error_recovery_counter = 0xFF; 2909 else 2910 p->link_error_recovery_counter = (u8)temp_32; 2911 2912 temp_32 = be32_to_cpu(rsp.link_downed); 2913 if (temp_32 > 0xFFUL) 2914 p->link_downed_counter = 0xFF; 2915 else 2916 p->link_downed_counter = (u8)temp_32; 2917 2918 temp_64 = be64_to_cpu(rsp.port_rcv_errors); 2919 if (temp_64 > 0xFFFFUL) 2920 p->port_rcv_errors = cpu_to_be16(0xFFFF); 2921 else 2922 p->port_rcv_errors = cpu_to_be16((u16)temp_64); 2923 2924 temp_64 = be64_to_cpu(rsp.port_rcv_remote_physical_errors); 2925 if (temp_64 > 0xFFFFUL) 2926 p->port_rcv_remphys_errors = cpu_to_be16(0xFFFF); 2927 else 2928 p->port_rcv_remphys_errors = cpu_to_be16((u16)temp_64); 2929 2930 temp_64 = be64_to_cpu(rsp.port_rcv_switch_relay_errors); 2931 p->port_rcv_switch_relay_errors = cpu_to_be16((u16)temp_64); 2932 2933 temp_64 = be64_to_cpu(rsp.port_xmit_discards); 2934 if (temp_64 > 0xFFFFUL) 2935 p->port_xmit_discards = cpu_to_be16(0xFFFF); 2936 else 2937 p->port_xmit_discards = cpu_to_be16((u16)temp_64); 2938 2939 temp_64 = be64_to_cpu(rsp.port_xmit_constraint_errors); 2940 if (temp_64 > 0xFFUL) 2941 p->port_xmit_constraint_errors = 0xFF; 2942 else 2943 p->port_xmit_constraint_errors = (u8)temp_64; 2944 2945 temp_64 = be64_to_cpu(rsp.port_rcv_constraint_errors); 2946 if (temp_64 > 0xFFUL) 2947 p->port_rcv_constraint_errors = 0xFFUL; 2948 else 2949 p->port_rcv_constraint_errors = (u8)temp_64; 2950 2951 /* LocalLink: 7:4, BufferOverrun: 3:0 */ 2952 temp_64 = be64_to_cpu(rsp.local_link_integrity_errors); 2953 if (temp_64 > 0xFUL) 2954 temp_64 = 0xFUL; 2955 2956 temp_link_overrun_errors = temp_64 << 4; 2957 2958 temp_64 = be64_to_cpu(rsp.excessive_buffer_overruns); 2959 if (temp_64 > 0xFUL) 2960 temp_64 = 0xFUL; 2961 temp_link_overrun_errors |= temp_64; 2962 2963 p->link_overrun_errors = (u8)temp_link_overrun_errors; 2964 2965 p->vl15_dropped = 0; /* N/A for OPA */ 2966 2967 bail: 2968 return reply((struct ib_mad_hdr *)pmp); 2969 } 2970 2971 static int pma_get_opa_errorinfo(struct opa_pma_mad *pmp, 2972 struct ib_device *ibdev, 2973 u8 port, u32 *resp_len) 2974 { 2975 size_t response_data_size; 2976 struct _port_ei *rsp; 2977 struct opa_port_error_info_msg *req; 2978 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 2979 u64 port_mask; 2980 u32 num_ports; 2981 u8 port_num; 2982 u8 num_pslm; 2983 u64 reg; 2984 2985 req = (struct opa_port_error_info_msg *)pmp->data; 2986 rsp = &req->port[0]; 2987 2988 num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod)); 2989 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3])); 2990 2991 memset(rsp, 0, sizeof(*rsp)); 2992 2993 if (num_ports != 1 || num_ports != num_pslm) { 2994 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 2995 return reply((struct ib_mad_hdr *)pmp); 2996 } 2997 2998 /* Sanity check */ 2999 response_data_size = sizeof(struct opa_port_error_info_msg); 3000 3001 if (response_data_size > sizeof(pmp->data)) { 3002 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 3003 return reply((struct ib_mad_hdr *)pmp); 3004 } 3005 3006 /* 3007 * The bit set in the mask needs to be consistent with the port 3008 * the request came in on. 3009 */ 3010 port_mask = be64_to_cpu(req->port_select_mask[3]); 3011 port_num = find_first_bit((unsigned long *)&port_mask, 3012 sizeof(port_mask) * 8); 3013 3014 if (port_num != port) { 3015 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 3016 return reply((struct ib_mad_hdr *)pmp); 3017 } 3018 3019 /* PortRcvErrorInfo */ 3020 rsp->port_rcv_ei.status_and_code = 3021 dd->err_info_rcvport.status_and_code; 3022 memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit1, 3023 &dd->err_info_rcvport.packet_flit1, sizeof(u64)); 3024 memcpy(&rsp->port_rcv_ei.ei.ei1to12.packet_flit2, 3025 &dd->err_info_rcvport.packet_flit2, sizeof(u64)); 3026 3027 /* ExcessiverBufferOverrunInfo */ 3028 reg = read_csr(dd, RCV_ERR_INFO); 3029 if (reg & RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK) { 3030 /* 3031 * if the RcvExcessBufferOverrun bit is set, save SC of 3032 * first pkt that encountered an excess buffer overrun 3033 */ 3034 u8 tmp = (u8)reg; 3035 3036 tmp &= RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SC_SMASK; 3037 tmp <<= 2; 3038 rsp->excessive_buffer_overrun_ei.status_and_sc = tmp; 3039 /* set the status bit */ 3040 rsp->excessive_buffer_overrun_ei.status_and_sc |= 0x80; 3041 } 3042 3043 rsp->port_xmit_constraint_ei.status = 3044 dd->err_info_xmit_constraint.status; 3045 rsp->port_xmit_constraint_ei.pkey = 3046 cpu_to_be16(dd->err_info_xmit_constraint.pkey); 3047 rsp->port_xmit_constraint_ei.slid = 3048 cpu_to_be32(dd->err_info_xmit_constraint.slid); 3049 3050 rsp->port_rcv_constraint_ei.status = 3051 dd->err_info_rcv_constraint.status; 3052 rsp->port_rcv_constraint_ei.pkey = 3053 cpu_to_be16(dd->err_info_rcv_constraint.pkey); 3054 rsp->port_rcv_constraint_ei.slid = 3055 cpu_to_be32(dd->err_info_rcv_constraint.slid); 3056 3057 /* UncorrectableErrorInfo */ 3058 rsp->uncorrectable_ei.status_and_code = dd->err_info_uncorrectable; 3059 3060 /* FMConfigErrorInfo */ 3061 rsp->fm_config_ei.status_and_code = dd->err_info_fmconfig; 3062 3063 if (resp_len) 3064 *resp_len += response_data_size; 3065 3066 return reply((struct ib_mad_hdr *)pmp); 3067 } 3068 3069 static int pma_set_opa_portstatus(struct opa_pma_mad *pmp, 3070 struct ib_device *ibdev, 3071 u8 port, u32 *resp_len) 3072 { 3073 struct opa_clear_port_status *req = 3074 (struct opa_clear_port_status *)pmp->data; 3075 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 3076 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3077 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3078 u32 nports = be32_to_cpu(pmp->mad_hdr.attr_mod) >> 24; 3079 u64 portn = be64_to_cpu(req->port_select_mask[3]); 3080 u32 counter_select = be32_to_cpu(req->counter_select_mask); 3081 u32 vl_select_mask = VL_MASK_ALL; /* clear all per-vl cnts */ 3082 unsigned long vl; 3083 3084 if ((nports != 1) || (portn != 1 << port)) { 3085 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 3086 return reply((struct ib_mad_hdr *)pmp); 3087 } 3088 /* 3089 * only counters returned by pma_get_opa_portstatus() are 3090 * handled, so when pma_get_opa_portstatus() gets a fix, 3091 * the corresponding change should be made here as well. 3092 */ 3093 3094 if (counter_select & CS_PORT_XMIT_DATA) 3095 write_dev_cntr(dd, C_DC_XMIT_FLITS, CNTR_INVALID_VL, 0); 3096 3097 if (counter_select & CS_PORT_RCV_DATA) 3098 write_dev_cntr(dd, C_DC_RCV_FLITS, CNTR_INVALID_VL, 0); 3099 3100 if (counter_select & CS_PORT_XMIT_PKTS) 3101 write_dev_cntr(dd, C_DC_XMIT_PKTS, CNTR_INVALID_VL, 0); 3102 3103 if (counter_select & CS_PORT_RCV_PKTS) 3104 write_dev_cntr(dd, C_DC_RCV_PKTS, CNTR_INVALID_VL, 0); 3105 3106 if (counter_select & CS_PORT_MCAST_XMIT_PKTS) 3107 write_dev_cntr(dd, C_DC_MC_XMIT_PKTS, CNTR_INVALID_VL, 0); 3108 3109 if (counter_select & CS_PORT_MCAST_RCV_PKTS) 3110 write_dev_cntr(dd, C_DC_MC_RCV_PKTS, CNTR_INVALID_VL, 0); 3111 3112 if (counter_select & CS_PORT_XMIT_WAIT) 3113 write_port_cntr(ppd, C_TX_WAIT, CNTR_INVALID_VL, 0); 3114 3115 /* ignore cs_sw_portCongestion for HFIs */ 3116 3117 if (counter_select & CS_PORT_RCV_FECN) 3118 write_dev_cntr(dd, C_DC_RCV_FCN, CNTR_INVALID_VL, 0); 3119 3120 if (counter_select & CS_PORT_RCV_BECN) 3121 write_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL, 0); 3122 3123 /* ignore cs_port_xmit_time_cong for HFIs */ 3124 /* ignore cs_port_xmit_wasted_bw for now */ 3125 /* ignore cs_port_xmit_wait_data for now */ 3126 if (counter_select & CS_PORT_RCV_BUBBLE) 3127 write_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL, 0); 3128 3129 /* Only applicable for switch */ 3130 /* if (counter_select & CS_PORT_MARK_FECN) 3131 * write_csr(dd, DCC_PRF_PORT_MARK_FECN_CNT, 0); 3132 */ 3133 3134 if (counter_select & CS_PORT_RCV_CONSTRAINT_ERRORS) 3135 write_port_cntr(ppd, C_SW_RCV_CSTR_ERR, CNTR_INVALID_VL, 0); 3136 3137 /* ignore cs_port_rcv_switch_relay_errors for HFIs */ 3138 if (counter_select & CS_PORT_XMIT_DISCARDS) 3139 write_port_cntr(ppd, C_SW_XMIT_DSCD, CNTR_INVALID_VL, 0); 3140 3141 if (counter_select & CS_PORT_XMIT_CONSTRAINT_ERRORS) 3142 write_port_cntr(ppd, C_SW_XMIT_CSTR_ERR, CNTR_INVALID_VL, 0); 3143 3144 if (counter_select & CS_PORT_RCV_REMOTE_PHYSICAL_ERRORS) 3145 write_dev_cntr(dd, C_DC_RMT_PHY_ERR, CNTR_INVALID_VL, 0); 3146 3147 if (counter_select & CS_LOCAL_LINK_INTEGRITY_ERRORS) 3148 write_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL, 0); 3149 3150 if (counter_select & CS_LINK_ERROR_RECOVERY) { 3151 write_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL, 0); 3152 write_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, 3153 CNTR_INVALID_VL, 0); 3154 } 3155 3156 if (counter_select & CS_PORT_RCV_ERRORS) 3157 write_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL, 0); 3158 3159 if (counter_select & CS_EXCESSIVE_BUFFER_OVERRUNS) { 3160 write_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL, 0); 3161 dd->rcv_ovfl_cnt = 0; 3162 } 3163 3164 if (counter_select & CS_FM_CONFIG_ERRORS) 3165 write_dev_cntr(dd, C_DC_FM_CFG_ERR, CNTR_INVALID_VL, 0); 3166 3167 if (counter_select & CS_LINK_DOWNED) 3168 write_port_cntr(ppd, C_SW_LINK_DOWN, CNTR_INVALID_VL, 0); 3169 3170 if (counter_select & CS_UNCORRECTABLE_ERRORS) 3171 write_dev_cntr(dd, C_DC_UNC_ERR, CNTR_INVALID_VL, 0); 3172 3173 for_each_set_bit(vl, (unsigned long *)&(vl_select_mask), 3174 8 * sizeof(vl_select_mask)) { 3175 if (counter_select & CS_PORT_XMIT_DATA) 3176 write_port_cntr(ppd, C_TX_FLIT_VL, idx_from_vl(vl), 0); 3177 3178 if (counter_select & CS_PORT_RCV_DATA) 3179 write_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl), 0); 3180 3181 if (counter_select & CS_PORT_XMIT_PKTS) 3182 write_port_cntr(ppd, C_TX_PKT_VL, idx_from_vl(vl), 0); 3183 3184 if (counter_select & CS_PORT_RCV_PKTS) 3185 write_dev_cntr(dd, C_DC_RX_PKT_VL, idx_from_vl(vl), 0); 3186 3187 if (counter_select & CS_PORT_XMIT_WAIT) 3188 write_port_cntr(ppd, C_TX_WAIT_VL, idx_from_vl(vl), 0); 3189 3190 /* sw_port_vl_congestion is 0 for HFIs */ 3191 if (counter_select & CS_PORT_RCV_FECN) 3192 write_dev_cntr(dd, C_DC_RCV_FCN_VL, idx_from_vl(vl), 0); 3193 3194 if (counter_select & CS_PORT_RCV_BECN) 3195 write_dev_cntr(dd, C_DC_RCV_BCN_VL, idx_from_vl(vl), 0); 3196 3197 /* port_vl_xmit_time_cong is 0 for HFIs */ 3198 /* port_vl_xmit_wasted_bw ??? */ 3199 /* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ??? */ 3200 if (counter_select & CS_PORT_RCV_BUBBLE) 3201 write_dev_cntr(dd, C_DC_RCV_BBL_VL, idx_from_vl(vl), 0); 3202 3203 /* if (counter_select & CS_PORT_MARK_FECN) 3204 * write_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT + offset, 0); 3205 */ 3206 if (counter_select & C_SW_XMIT_DSCD_VL) 3207 write_port_cntr(ppd, C_SW_XMIT_DSCD_VL, 3208 idx_from_vl(vl), 0); 3209 } 3210 3211 if (resp_len) 3212 *resp_len += sizeof(*req); 3213 3214 return reply((struct ib_mad_hdr *)pmp); 3215 } 3216 3217 static int pma_set_opa_errorinfo(struct opa_pma_mad *pmp, 3218 struct ib_device *ibdev, 3219 u8 port, u32 *resp_len) 3220 { 3221 struct _port_ei *rsp; 3222 struct opa_port_error_info_msg *req; 3223 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 3224 u64 port_mask; 3225 u32 num_ports; 3226 u8 port_num; 3227 u8 num_pslm; 3228 u32 error_info_select; 3229 3230 req = (struct opa_port_error_info_msg *)pmp->data; 3231 rsp = &req->port[0]; 3232 3233 num_ports = OPA_AM_NPORT(be32_to_cpu(pmp->mad_hdr.attr_mod)); 3234 num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3])); 3235 3236 memset(rsp, 0, sizeof(*rsp)); 3237 3238 if (num_ports != 1 || num_ports != num_pslm) { 3239 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 3240 return reply((struct ib_mad_hdr *)pmp); 3241 } 3242 3243 /* 3244 * The bit set in the mask needs to be consistent with the port 3245 * the request came in on. 3246 */ 3247 port_mask = be64_to_cpu(req->port_select_mask[3]); 3248 port_num = find_first_bit((unsigned long *)&port_mask, 3249 sizeof(port_mask) * 8); 3250 3251 if (port_num != port) { 3252 pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD; 3253 return reply((struct ib_mad_hdr *)pmp); 3254 } 3255 3256 error_info_select = be32_to_cpu(req->error_info_select_mask); 3257 3258 /* PortRcvErrorInfo */ 3259 if (error_info_select & ES_PORT_RCV_ERROR_INFO) 3260 /* turn off status bit */ 3261 dd->err_info_rcvport.status_and_code &= ~OPA_EI_STATUS_SMASK; 3262 3263 /* ExcessiverBufferOverrunInfo */ 3264 if (error_info_select & ES_EXCESSIVE_BUFFER_OVERRUN_INFO) 3265 /* 3266 * status bit is essentially kept in the h/w - bit 5 of 3267 * RCV_ERR_INFO 3268 */ 3269 write_csr(dd, RCV_ERR_INFO, 3270 RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK); 3271 3272 if (error_info_select & ES_PORT_XMIT_CONSTRAINT_ERROR_INFO) 3273 dd->err_info_xmit_constraint.status &= ~OPA_EI_STATUS_SMASK; 3274 3275 if (error_info_select & ES_PORT_RCV_CONSTRAINT_ERROR_INFO) 3276 dd->err_info_rcv_constraint.status &= ~OPA_EI_STATUS_SMASK; 3277 3278 /* UncorrectableErrorInfo */ 3279 if (error_info_select & ES_UNCORRECTABLE_ERROR_INFO) 3280 /* turn off status bit */ 3281 dd->err_info_uncorrectable &= ~OPA_EI_STATUS_SMASK; 3282 3283 /* FMConfigErrorInfo */ 3284 if (error_info_select & ES_FM_CONFIG_ERROR_INFO) 3285 /* turn off status bit */ 3286 dd->err_info_fmconfig &= ~OPA_EI_STATUS_SMASK; 3287 3288 if (resp_len) 3289 *resp_len += sizeof(*req); 3290 3291 return reply((struct ib_mad_hdr *)pmp); 3292 } 3293 3294 struct opa_congestion_info_attr { 3295 __be16 congestion_info; 3296 u8 control_table_cap; /* Multiple of 64 entry unit CCTs */ 3297 u8 congestion_log_length; 3298 } __packed; 3299 3300 static int __subn_get_opa_cong_info(struct opa_smp *smp, u32 am, u8 *data, 3301 struct ib_device *ibdev, u8 port, 3302 u32 *resp_len) 3303 { 3304 struct opa_congestion_info_attr *p = 3305 (struct opa_congestion_info_attr *)data; 3306 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3307 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3308 3309 p->congestion_info = 0; 3310 p->control_table_cap = ppd->cc_max_table_entries; 3311 p->congestion_log_length = OPA_CONG_LOG_ELEMS; 3312 3313 if (resp_len) 3314 *resp_len += sizeof(*p); 3315 3316 return reply((struct ib_mad_hdr *)smp); 3317 } 3318 3319 static int __subn_get_opa_cong_setting(struct opa_smp *smp, u32 am, 3320 u8 *data, struct ib_device *ibdev, 3321 u8 port, u32 *resp_len) 3322 { 3323 int i; 3324 struct opa_congestion_setting_attr *p = 3325 (struct opa_congestion_setting_attr *)data; 3326 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3327 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3328 struct opa_congestion_setting_entry_shadow *entries; 3329 struct cc_state *cc_state; 3330 3331 rcu_read_lock(); 3332 3333 cc_state = get_cc_state(ppd); 3334 3335 if (!cc_state) { 3336 rcu_read_unlock(); 3337 return reply((struct ib_mad_hdr *)smp); 3338 } 3339 3340 entries = cc_state->cong_setting.entries; 3341 p->port_control = cpu_to_be16(cc_state->cong_setting.port_control); 3342 p->control_map = cpu_to_be32(cc_state->cong_setting.control_map); 3343 for (i = 0; i < OPA_MAX_SLS; i++) { 3344 p->entries[i].ccti_increase = entries[i].ccti_increase; 3345 p->entries[i].ccti_timer = cpu_to_be16(entries[i].ccti_timer); 3346 p->entries[i].trigger_threshold = 3347 entries[i].trigger_threshold; 3348 p->entries[i].ccti_min = entries[i].ccti_min; 3349 } 3350 3351 rcu_read_unlock(); 3352 3353 if (resp_len) 3354 *resp_len += sizeof(*p); 3355 3356 return reply((struct ib_mad_hdr *)smp); 3357 } 3358 3359 /* 3360 * Apply congestion control information stored in the ppd to the 3361 * active structure. 3362 */ 3363 static void apply_cc_state(struct hfi1_pportdata *ppd) 3364 { 3365 struct cc_state *old_cc_state, *new_cc_state; 3366 3367 new_cc_state = kzalloc(sizeof(*new_cc_state), GFP_KERNEL); 3368 if (!new_cc_state) 3369 return; 3370 3371 /* 3372 * Hold the lock for updating *and* to prevent ppd information 3373 * from changing during the update. 3374 */ 3375 spin_lock(&ppd->cc_state_lock); 3376 3377 old_cc_state = get_cc_state_protected(ppd); 3378 if (!old_cc_state) { 3379 /* never active, or shutting down */ 3380 spin_unlock(&ppd->cc_state_lock); 3381 kfree(new_cc_state); 3382 return; 3383 } 3384 3385 *new_cc_state = *old_cc_state; 3386 3387 new_cc_state->cct.ccti_limit = ppd->total_cct_entry - 1; 3388 memcpy(new_cc_state->cct.entries, ppd->ccti_entries, 3389 ppd->total_cct_entry * sizeof(struct ib_cc_table_entry)); 3390 3391 new_cc_state->cong_setting.port_control = IB_CC_CCS_PC_SL_BASED; 3392 new_cc_state->cong_setting.control_map = ppd->cc_sl_control_map; 3393 memcpy(new_cc_state->cong_setting.entries, ppd->congestion_entries, 3394 OPA_MAX_SLS * sizeof(struct opa_congestion_setting_entry)); 3395 3396 rcu_assign_pointer(ppd->cc_state, new_cc_state); 3397 3398 spin_unlock(&ppd->cc_state_lock); 3399 3400 kfree_rcu(old_cc_state, rcu); 3401 } 3402 3403 static int __subn_set_opa_cong_setting(struct opa_smp *smp, u32 am, u8 *data, 3404 struct ib_device *ibdev, u8 port, 3405 u32 *resp_len) 3406 { 3407 struct opa_congestion_setting_attr *p = 3408 (struct opa_congestion_setting_attr *)data; 3409 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3410 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3411 struct opa_congestion_setting_entry_shadow *entries; 3412 int i; 3413 3414 /* 3415 * Save details from packet into the ppd. Hold the cc_state_lock so 3416 * our information is consistent with anyone trying to apply the state. 3417 */ 3418 spin_lock(&ppd->cc_state_lock); 3419 ppd->cc_sl_control_map = be32_to_cpu(p->control_map); 3420 3421 entries = ppd->congestion_entries; 3422 for (i = 0; i < OPA_MAX_SLS; i++) { 3423 entries[i].ccti_increase = p->entries[i].ccti_increase; 3424 entries[i].ccti_timer = be16_to_cpu(p->entries[i].ccti_timer); 3425 entries[i].trigger_threshold = 3426 p->entries[i].trigger_threshold; 3427 entries[i].ccti_min = p->entries[i].ccti_min; 3428 } 3429 spin_unlock(&ppd->cc_state_lock); 3430 3431 /* now apply the information */ 3432 apply_cc_state(ppd); 3433 3434 return __subn_get_opa_cong_setting(smp, am, data, ibdev, port, 3435 resp_len); 3436 } 3437 3438 static int __subn_get_opa_hfi1_cong_log(struct opa_smp *smp, u32 am, 3439 u8 *data, struct ib_device *ibdev, 3440 u8 port, u32 *resp_len) 3441 { 3442 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3443 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3444 struct opa_hfi1_cong_log *cong_log = (struct opa_hfi1_cong_log *)data; 3445 s64 ts; 3446 int i; 3447 3448 if (am != 0) { 3449 smp->status |= IB_SMP_INVALID_FIELD; 3450 return reply((struct ib_mad_hdr *)smp); 3451 } 3452 3453 spin_lock_irq(&ppd->cc_log_lock); 3454 3455 cong_log->log_type = OPA_CC_LOG_TYPE_HFI; 3456 cong_log->congestion_flags = 0; 3457 cong_log->threshold_event_counter = 3458 cpu_to_be16(ppd->threshold_event_counter); 3459 memcpy(cong_log->threshold_cong_event_map, 3460 ppd->threshold_cong_event_map, 3461 sizeof(cong_log->threshold_cong_event_map)); 3462 /* keep timestamp in units of 1.024 usec */ 3463 ts = ktime_to_ns(ktime_get()) / 1024; 3464 cong_log->current_time_stamp = cpu_to_be32(ts); 3465 for (i = 0; i < OPA_CONG_LOG_ELEMS; i++) { 3466 struct opa_hfi1_cong_log_event_internal *cce = 3467 &ppd->cc_events[ppd->cc_mad_idx++]; 3468 if (ppd->cc_mad_idx == OPA_CONG_LOG_ELEMS) 3469 ppd->cc_mad_idx = 0; 3470 /* 3471 * Entries which are older than twice the time 3472 * required to wrap the counter are supposed to 3473 * be zeroed (CA10-49 IBTA, release 1.2.1, V1). 3474 */ 3475 if ((u64)(ts - cce->timestamp) > (2 * UINT_MAX)) 3476 continue; 3477 memcpy(cong_log->events[i].local_qp_cn_entry, &cce->lqpn, 3); 3478 memcpy(cong_log->events[i].remote_qp_number_cn_entry, 3479 &cce->rqpn, 3); 3480 cong_log->events[i].sl_svc_type_cn_entry = 3481 ((cce->sl & 0x1f) << 3) | (cce->svc_type & 0x7); 3482 cong_log->events[i].remote_lid_cn_entry = 3483 cpu_to_be32(cce->rlid); 3484 cong_log->events[i].timestamp_cn_entry = 3485 cpu_to_be32(cce->timestamp); 3486 } 3487 3488 /* 3489 * Reset threshold_cong_event_map, and threshold_event_counter 3490 * to 0 when log is read. 3491 */ 3492 memset(ppd->threshold_cong_event_map, 0x0, 3493 sizeof(ppd->threshold_cong_event_map)); 3494 ppd->threshold_event_counter = 0; 3495 3496 spin_unlock_irq(&ppd->cc_log_lock); 3497 3498 if (resp_len) 3499 *resp_len += sizeof(struct opa_hfi1_cong_log); 3500 3501 return reply((struct ib_mad_hdr *)smp); 3502 } 3503 3504 static int __subn_get_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data, 3505 struct ib_device *ibdev, u8 port, 3506 u32 *resp_len) 3507 { 3508 struct ib_cc_table_attr *cc_table_attr = 3509 (struct ib_cc_table_attr *)data; 3510 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3511 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3512 u32 start_block = OPA_AM_START_BLK(am); 3513 u32 n_blocks = OPA_AM_NBLK(am); 3514 struct ib_cc_table_entry_shadow *entries; 3515 int i, j; 3516 u32 sentry, eentry; 3517 struct cc_state *cc_state; 3518 3519 /* sanity check n_blocks, start_block */ 3520 if (n_blocks == 0 || 3521 start_block + n_blocks > ppd->cc_max_table_entries) { 3522 smp->status |= IB_SMP_INVALID_FIELD; 3523 return reply((struct ib_mad_hdr *)smp); 3524 } 3525 3526 rcu_read_lock(); 3527 3528 cc_state = get_cc_state(ppd); 3529 3530 if (!cc_state) { 3531 rcu_read_unlock(); 3532 return reply((struct ib_mad_hdr *)smp); 3533 } 3534 3535 sentry = start_block * IB_CCT_ENTRIES; 3536 eentry = sentry + (IB_CCT_ENTRIES * n_blocks); 3537 3538 cc_table_attr->ccti_limit = cpu_to_be16(cc_state->cct.ccti_limit); 3539 3540 entries = cc_state->cct.entries; 3541 3542 /* return n_blocks, though the last block may not be full */ 3543 for (j = 0, i = sentry; i < eentry; j++, i++) 3544 cc_table_attr->ccti_entries[j].entry = 3545 cpu_to_be16(entries[i].entry); 3546 3547 rcu_read_unlock(); 3548 3549 if (resp_len) 3550 *resp_len += sizeof(u16) * (IB_CCT_ENTRIES * n_blocks + 1); 3551 3552 return reply((struct ib_mad_hdr *)smp); 3553 } 3554 3555 static int __subn_set_opa_cc_table(struct opa_smp *smp, u32 am, u8 *data, 3556 struct ib_device *ibdev, u8 port, 3557 u32 *resp_len) 3558 { 3559 struct ib_cc_table_attr *p = (struct ib_cc_table_attr *)data; 3560 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3561 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3562 u32 start_block = OPA_AM_START_BLK(am); 3563 u32 n_blocks = OPA_AM_NBLK(am); 3564 struct ib_cc_table_entry_shadow *entries; 3565 int i, j; 3566 u32 sentry, eentry; 3567 u16 ccti_limit; 3568 3569 /* sanity check n_blocks, start_block */ 3570 if (n_blocks == 0 || 3571 start_block + n_blocks > ppd->cc_max_table_entries) { 3572 smp->status |= IB_SMP_INVALID_FIELD; 3573 return reply((struct ib_mad_hdr *)smp); 3574 } 3575 3576 sentry = start_block * IB_CCT_ENTRIES; 3577 eentry = sentry + ((n_blocks - 1) * IB_CCT_ENTRIES) + 3578 (be16_to_cpu(p->ccti_limit)) % IB_CCT_ENTRIES + 1; 3579 3580 /* sanity check ccti_limit */ 3581 ccti_limit = be16_to_cpu(p->ccti_limit); 3582 if (ccti_limit + 1 > eentry) { 3583 smp->status |= IB_SMP_INVALID_FIELD; 3584 return reply((struct ib_mad_hdr *)smp); 3585 } 3586 3587 /* 3588 * Save details from packet into the ppd. Hold the cc_state_lock so 3589 * our information is consistent with anyone trying to apply the state. 3590 */ 3591 spin_lock(&ppd->cc_state_lock); 3592 ppd->total_cct_entry = ccti_limit + 1; 3593 entries = ppd->ccti_entries; 3594 for (j = 0, i = sentry; i < eentry; j++, i++) 3595 entries[i].entry = be16_to_cpu(p->ccti_entries[j].entry); 3596 spin_unlock(&ppd->cc_state_lock); 3597 3598 /* now apply the information */ 3599 apply_cc_state(ppd); 3600 3601 return __subn_get_opa_cc_table(smp, am, data, ibdev, port, resp_len); 3602 } 3603 3604 struct opa_led_info { 3605 __be32 rsvd_led_mask; 3606 __be32 rsvd; 3607 }; 3608 3609 #define OPA_LED_SHIFT 31 3610 #define OPA_LED_MASK BIT(OPA_LED_SHIFT) 3611 3612 static int __subn_get_opa_led_info(struct opa_smp *smp, u32 am, u8 *data, 3613 struct ib_device *ibdev, u8 port, 3614 u32 *resp_len) 3615 { 3616 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 3617 struct hfi1_pportdata *ppd = dd->pport; 3618 struct opa_led_info *p = (struct opa_led_info *)data; 3619 u32 nport = OPA_AM_NPORT(am); 3620 u32 is_beaconing_active; 3621 3622 if (nport != 1) { 3623 smp->status |= IB_SMP_INVALID_FIELD; 3624 return reply((struct ib_mad_hdr *)smp); 3625 } 3626 3627 /* 3628 * This pairs with the memory barrier in hfi1_start_led_override to 3629 * ensure that we read the correct state of LED beaconing represented 3630 * by led_override_timer_active 3631 */ 3632 smp_rmb(); 3633 is_beaconing_active = !!atomic_read(&ppd->led_override_timer_active); 3634 p->rsvd_led_mask = cpu_to_be32(is_beaconing_active << OPA_LED_SHIFT); 3635 3636 if (resp_len) 3637 *resp_len += sizeof(struct opa_led_info); 3638 3639 return reply((struct ib_mad_hdr *)smp); 3640 } 3641 3642 static int __subn_set_opa_led_info(struct opa_smp *smp, u32 am, u8 *data, 3643 struct ib_device *ibdev, u8 port, 3644 u32 *resp_len) 3645 { 3646 struct hfi1_devdata *dd = dd_from_ibdev(ibdev); 3647 struct opa_led_info *p = (struct opa_led_info *)data; 3648 u32 nport = OPA_AM_NPORT(am); 3649 int on = !!(be32_to_cpu(p->rsvd_led_mask) & OPA_LED_MASK); 3650 3651 if (nport != 1) { 3652 smp->status |= IB_SMP_INVALID_FIELD; 3653 return reply((struct ib_mad_hdr *)smp); 3654 } 3655 3656 if (on) 3657 hfi1_start_led_override(dd->pport, 2000, 1500); 3658 else 3659 shutdown_led_override(dd->pport); 3660 3661 return __subn_get_opa_led_info(smp, am, data, ibdev, port, resp_len); 3662 } 3663 3664 static int subn_get_opa_sma(__be16 attr_id, struct opa_smp *smp, u32 am, 3665 u8 *data, struct ib_device *ibdev, u8 port, 3666 u32 *resp_len) 3667 { 3668 int ret; 3669 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3670 3671 switch (attr_id) { 3672 case IB_SMP_ATTR_NODE_DESC: 3673 ret = __subn_get_opa_nodedesc(smp, am, data, ibdev, port, 3674 resp_len); 3675 break; 3676 case IB_SMP_ATTR_NODE_INFO: 3677 ret = __subn_get_opa_nodeinfo(smp, am, data, ibdev, port, 3678 resp_len); 3679 break; 3680 case IB_SMP_ATTR_PORT_INFO: 3681 ret = __subn_get_opa_portinfo(smp, am, data, ibdev, port, 3682 resp_len); 3683 break; 3684 case IB_SMP_ATTR_PKEY_TABLE: 3685 ret = __subn_get_opa_pkeytable(smp, am, data, ibdev, port, 3686 resp_len); 3687 break; 3688 case OPA_ATTRIB_ID_SL_TO_SC_MAP: 3689 ret = __subn_get_opa_sl_to_sc(smp, am, data, ibdev, port, 3690 resp_len); 3691 break; 3692 case OPA_ATTRIB_ID_SC_TO_SL_MAP: 3693 ret = __subn_get_opa_sc_to_sl(smp, am, data, ibdev, port, 3694 resp_len); 3695 break; 3696 case OPA_ATTRIB_ID_SC_TO_VLT_MAP: 3697 ret = __subn_get_opa_sc_to_vlt(smp, am, data, ibdev, port, 3698 resp_len); 3699 break; 3700 case OPA_ATTRIB_ID_SC_TO_VLNT_MAP: 3701 ret = __subn_get_opa_sc_to_vlnt(smp, am, data, ibdev, port, 3702 resp_len); 3703 break; 3704 case OPA_ATTRIB_ID_PORT_STATE_INFO: 3705 ret = __subn_get_opa_psi(smp, am, data, ibdev, port, 3706 resp_len); 3707 break; 3708 case OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE: 3709 ret = __subn_get_opa_bct(smp, am, data, ibdev, port, 3710 resp_len); 3711 break; 3712 case OPA_ATTRIB_ID_CABLE_INFO: 3713 ret = __subn_get_opa_cable_info(smp, am, data, ibdev, port, 3714 resp_len); 3715 break; 3716 case IB_SMP_ATTR_VL_ARB_TABLE: 3717 ret = __subn_get_opa_vl_arb(smp, am, data, ibdev, port, 3718 resp_len); 3719 break; 3720 case OPA_ATTRIB_ID_CONGESTION_INFO: 3721 ret = __subn_get_opa_cong_info(smp, am, data, ibdev, port, 3722 resp_len); 3723 break; 3724 case OPA_ATTRIB_ID_HFI_CONGESTION_SETTING: 3725 ret = __subn_get_opa_cong_setting(smp, am, data, ibdev, 3726 port, resp_len); 3727 break; 3728 case OPA_ATTRIB_ID_HFI_CONGESTION_LOG: 3729 ret = __subn_get_opa_hfi1_cong_log(smp, am, data, ibdev, 3730 port, resp_len); 3731 break; 3732 case OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE: 3733 ret = __subn_get_opa_cc_table(smp, am, data, ibdev, port, 3734 resp_len); 3735 break; 3736 case IB_SMP_ATTR_LED_INFO: 3737 ret = __subn_get_opa_led_info(smp, am, data, ibdev, port, 3738 resp_len); 3739 break; 3740 case IB_SMP_ATTR_SM_INFO: 3741 if (ibp->rvp.port_cap_flags & IB_PORT_SM_DISABLED) 3742 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 3743 if (ibp->rvp.port_cap_flags & IB_PORT_SM) 3744 return IB_MAD_RESULT_SUCCESS; 3745 /* FALLTHROUGH */ 3746 default: 3747 smp->status |= IB_SMP_UNSUP_METH_ATTR; 3748 ret = reply((struct ib_mad_hdr *)smp); 3749 break; 3750 } 3751 return ret; 3752 } 3753 3754 static int subn_set_opa_sma(__be16 attr_id, struct opa_smp *smp, u32 am, 3755 u8 *data, struct ib_device *ibdev, u8 port, 3756 u32 *resp_len) 3757 { 3758 int ret; 3759 struct hfi1_ibport *ibp = to_iport(ibdev, port); 3760 3761 switch (attr_id) { 3762 case IB_SMP_ATTR_PORT_INFO: 3763 ret = __subn_set_opa_portinfo(smp, am, data, ibdev, port, 3764 resp_len); 3765 break; 3766 case IB_SMP_ATTR_PKEY_TABLE: 3767 ret = __subn_set_opa_pkeytable(smp, am, data, ibdev, port, 3768 resp_len); 3769 break; 3770 case OPA_ATTRIB_ID_SL_TO_SC_MAP: 3771 ret = __subn_set_opa_sl_to_sc(smp, am, data, ibdev, port, 3772 resp_len); 3773 break; 3774 case OPA_ATTRIB_ID_SC_TO_SL_MAP: 3775 ret = __subn_set_opa_sc_to_sl(smp, am, data, ibdev, port, 3776 resp_len); 3777 break; 3778 case OPA_ATTRIB_ID_SC_TO_VLT_MAP: 3779 ret = __subn_set_opa_sc_to_vlt(smp, am, data, ibdev, port, 3780 resp_len); 3781 break; 3782 case OPA_ATTRIB_ID_SC_TO_VLNT_MAP: 3783 ret = __subn_set_opa_sc_to_vlnt(smp, am, data, ibdev, port, 3784 resp_len); 3785 break; 3786 case OPA_ATTRIB_ID_PORT_STATE_INFO: 3787 ret = __subn_set_opa_psi(smp, am, data, ibdev, port, 3788 resp_len); 3789 break; 3790 case OPA_ATTRIB_ID_BUFFER_CONTROL_TABLE: 3791 ret = __subn_set_opa_bct(smp, am, data, ibdev, port, 3792 resp_len); 3793 break; 3794 case IB_SMP_ATTR_VL_ARB_TABLE: 3795 ret = __subn_set_opa_vl_arb(smp, am, data, ibdev, port, 3796 resp_len); 3797 break; 3798 case OPA_ATTRIB_ID_HFI_CONGESTION_SETTING: 3799 ret = __subn_set_opa_cong_setting(smp, am, data, ibdev, 3800 port, resp_len); 3801 break; 3802 case OPA_ATTRIB_ID_CONGESTION_CONTROL_TABLE: 3803 ret = __subn_set_opa_cc_table(smp, am, data, ibdev, port, 3804 resp_len); 3805 break; 3806 case IB_SMP_ATTR_LED_INFO: 3807 ret = __subn_set_opa_led_info(smp, am, data, ibdev, port, 3808 resp_len); 3809 break; 3810 case IB_SMP_ATTR_SM_INFO: 3811 if (ibp->rvp.port_cap_flags & IB_PORT_SM_DISABLED) 3812 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 3813 if (ibp->rvp.port_cap_flags & IB_PORT_SM) 3814 return IB_MAD_RESULT_SUCCESS; 3815 /* FALLTHROUGH */ 3816 default: 3817 smp->status |= IB_SMP_UNSUP_METH_ATTR; 3818 ret = reply((struct ib_mad_hdr *)smp); 3819 break; 3820 } 3821 return ret; 3822 } 3823 3824 static inline void set_aggr_error(struct opa_aggregate *ag) 3825 { 3826 ag->err_reqlength |= cpu_to_be16(0x8000); 3827 } 3828 3829 static int subn_get_opa_aggregate(struct opa_smp *smp, 3830 struct ib_device *ibdev, u8 port, 3831 u32 *resp_len) 3832 { 3833 int i; 3834 u32 num_attr = be32_to_cpu(smp->attr_mod) & 0x000000ff; 3835 u8 *next_smp = opa_get_smp_data(smp); 3836 3837 if (num_attr < 1 || num_attr > 117) { 3838 smp->status |= IB_SMP_INVALID_FIELD; 3839 return reply((struct ib_mad_hdr *)smp); 3840 } 3841 3842 for (i = 0; i < num_attr; i++) { 3843 struct opa_aggregate *agg; 3844 size_t agg_data_len; 3845 size_t agg_size; 3846 u32 am; 3847 3848 agg = (struct opa_aggregate *)next_smp; 3849 agg_data_len = (be16_to_cpu(agg->err_reqlength) & 0x007f) * 8; 3850 agg_size = sizeof(*agg) + agg_data_len; 3851 am = be32_to_cpu(agg->attr_mod); 3852 3853 *resp_len += agg_size; 3854 3855 if (next_smp + agg_size > ((u8 *)smp) + sizeof(*smp)) { 3856 smp->status |= IB_SMP_INVALID_FIELD; 3857 return reply((struct ib_mad_hdr *)smp); 3858 } 3859 3860 /* zero the payload for this segment */ 3861 memset(next_smp + sizeof(*agg), 0, agg_data_len); 3862 3863 (void)subn_get_opa_sma(agg->attr_id, smp, am, agg->data, 3864 ibdev, port, NULL); 3865 if (smp->status & ~IB_SMP_DIRECTION) { 3866 set_aggr_error(agg); 3867 return reply((struct ib_mad_hdr *)smp); 3868 } 3869 next_smp += agg_size; 3870 } 3871 3872 return reply((struct ib_mad_hdr *)smp); 3873 } 3874 3875 static int subn_set_opa_aggregate(struct opa_smp *smp, 3876 struct ib_device *ibdev, u8 port, 3877 u32 *resp_len) 3878 { 3879 int i; 3880 u32 num_attr = be32_to_cpu(smp->attr_mod) & 0x000000ff; 3881 u8 *next_smp = opa_get_smp_data(smp); 3882 3883 if (num_attr < 1 || num_attr > 117) { 3884 smp->status |= IB_SMP_INVALID_FIELD; 3885 return reply((struct ib_mad_hdr *)smp); 3886 } 3887 3888 for (i = 0; i < num_attr; i++) { 3889 struct opa_aggregate *agg; 3890 size_t agg_data_len; 3891 size_t agg_size; 3892 u32 am; 3893 3894 agg = (struct opa_aggregate *)next_smp; 3895 agg_data_len = (be16_to_cpu(agg->err_reqlength) & 0x007f) * 8; 3896 agg_size = sizeof(*agg) + agg_data_len; 3897 am = be32_to_cpu(agg->attr_mod); 3898 3899 *resp_len += agg_size; 3900 3901 if (next_smp + agg_size > ((u8 *)smp) + sizeof(*smp)) { 3902 smp->status |= IB_SMP_INVALID_FIELD; 3903 return reply((struct ib_mad_hdr *)smp); 3904 } 3905 3906 (void)subn_set_opa_sma(agg->attr_id, smp, am, agg->data, 3907 ibdev, port, NULL); 3908 if (smp->status & ~IB_SMP_DIRECTION) { 3909 set_aggr_error(agg); 3910 return reply((struct ib_mad_hdr *)smp); 3911 } 3912 next_smp += agg_size; 3913 } 3914 3915 return reply((struct ib_mad_hdr *)smp); 3916 } 3917 3918 /* 3919 * OPAv1 specifies that, on the transition to link up, these counters 3920 * are cleared: 3921 * PortRcvErrors [*] 3922 * LinkErrorRecovery 3923 * LocalLinkIntegrityErrors 3924 * ExcessiveBufferOverruns [*] 3925 * 3926 * [*] Error info associated with these counters is retained, but the 3927 * error info status is reset to 0. 3928 */ 3929 void clear_linkup_counters(struct hfi1_devdata *dd) 3930 { 3931 /* PortRcvErrors */ 3932 write_dev_cntr(dd, C_DC_RCV_ERR, CNTR_INVALID_VL, 0); 3933 dd->err_info_rcvport.status_and_code &= ~OPA_EI_STATUS_SMASK; 3934 /* LinkErrorRecovery */ 3935 write_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL, 0); 3936 write_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, CNTR_INVALID_VL, 0); 3937 /* LocalLinkIntegrityErrors */ 3938 write_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL, 0); 3939 /* ExcessiveBufferOverruns */ 3940 write_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL, 0); 3941 dd->rcv_ovfl_cnt = 0; 3942 dd->err_info_xmit_constraint.status &= ~OPA_EI_STATUS_SMASK; 3943 } 3944 3945 /* 3946 * is_local_mad() returns 1 if 'mad' is sent from, and destined to the 3947 * local node, 0 otherwise. 3948 */ 3949 static int is_local_mad(struct hfi1_ibport *ibp, const struct opa_mad *mad, 3950 const struct ib_wc *in_wc) 3951 { 3952 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3953 const struct opa_smp *smp = (const struct opa_smp *)mad; 3954 3955 if (smp->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 3956 return (smp->hop_cnt == 0 && 3957 smp->route.dr.dr_slid == OPA_LID_PERMISSIVE && 3958 smp->route.dr.dr_dlid == OPA_LID_PERMISSIVE); 3959 } 3960 3961 return (in_wc->slid == ppd->lid); 3962 } 3963 3964 /* 3965 * opa_local_smp_check() should only be called on MADs for which 3966 * is_local_mad() returns true. It applies the SMP checks that are 3967 * specific to SMPs which are sent from, and destined to this node. 3968 * opa_local_smp_check() returns 0 if the SMP passes its checks, 1 3969 * otherwise. 3970 * 3971 * SMPs which arrive from other nodes are instead checked by 3972 * opa_smp_check(). 3973 */ 3974 static int opa_local_smp_check(struct hfi1_ibport *ibp, 3975 const struct ib_wc *in_wc) 3976 { 3977 struct hfi1_pportdata *ppd = ppd_from_ibp(ibp); 3978 u16 slid = in_wc->slid; 3979 u16 pkey; 3980 3981 if (in_wc->pkey_index >= ARRAY_SIZE(ppd->pkeys)) 3982 return 1; 3983 3984 pkey = ppd->pkeys[in_wc->pkey_index]; 3985 /* 3986 * We need to do the "node-local" checks specified in OPAv1, 3987 * rev 0.90, section 9.10.26, which are: 3988 * - pkey is 0x7fff, or 0xffff 3989 * - Source QPN == 0 || Destination QPN == 0 3990 * - the MAD header's management class is either 3991 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE or 3992 * IB_MGMT_CLASS_SUBN_LID_ROUTED 3993 * - SLID != 0 3994 * 3995 * However, we know (and so don't need to check again) that, 3996 * for local SMPs, the MAD stack passes MADs with: 3997 * - Source QPN of 0 3998 * - MAD mgmt_class is IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE 3999 * - SLID is either: OPA_LID_PERMISSIVE (0xFFFFFFFF), or 4000 * our own port's lid 4001 * 4002 */ 4003 if (pkey == LIM_MGMT_P_KEY || pkey == FULL_MGMT_P_KEY) 4004 return 0; 4005 ingress_pkey_table_fail(ppd, pkey, slid); 4006 return 1; 4007 } 4008 4009 static int process_subn_opa(struct ib_device *ibdev, int mad_flags, 4010 u8 port, const struct opa_mad *in_mad, 4011 struct opa_mad *out_mad, 4012 u32 *resp_len) 4013 { 4014 struct opa_smp *smp = (struct opa_smp *)out_mad; 4015 struct hfi1_ibport *ibp = to_iport(ibdev, port); 4016 u8 *data; 4017 u32 am; 4018 __be16 attr_id; 4019 int ret; 4020 4021 *out_mad = *in_mad; 4022 data = opa_get_smp_data(smp); 4023 4024 am = be32_to_cpu(smp->attr_mod); 4025 attr_id = smp->attr_id; 4026 if (smp->class_version != OPA_SM_CLASS_VERSION) { 4027 smp->status |= IB_SMP_UNSUP_VERSION; 4028 ret = reply((struct ib_mad_hdr *)smp); 4029 return ret; 4030 } 4031 ret = check_mkey(ibp, (struct ib_mad_hdr *)smp, mad_flags, smp->mkey, 4032 smp->route.dr.dr_slid, smp->route.dr.return_path, 4033 smp->hop_cnt); 4034 if (ret) { 4035 u32 port_num = be32_to_cpu(smp->attr_mod); 4036 4037 /* 4038 * If this is a get/set portinfo, we already check the 4039 * M_Key if the MAD is for another port and the M_Key 4040 * is OK on the receiving port. This check is needed 4041 * to increment the error counters when the M_Key 4042 * fails to match on *both* ports. 4043 */ 4044 if (attr_id == IB_SMP_ATTR_PORT_INFO && 4045 (smp->method == IB_MGMT_METHOD_GET || 4046 smp->method == IB_MGMT_METHOD_SET) && 4047 port_num && port_num <= ibdev->phys_port_cnt && 4048 port != port_num) 4049 (void)check_mkey(to_iport(ibdev, port_num), 4050 (struct ib_mad_hdr *)smp, 0, 4051 smp->mkey, smp->route.dr.dr_slid, 4052 smp->route.dr.return_path, 4053 smp->hop_cnt); 4054 ret = IB_MAD_RESULT_FAILURE; 4055 return ret; 4056 } 4057 4058 *resp_len = opa_get_smp_header_size(smp); 4059 4060 switch (smp->method) { 4061 case IB_MGMT_METHOD_GET: 4062 switch (attr_id) { 4063 default: 4064 clear_opa_smp_data(smp); 4065 ret = subn_get_opa_sma(attr_id, smp, am, data, 4066 ibdev, port, resp_len); 4067 break; 4068 case OPA_ATTRIB_ID_AGGREGATE: 4069 ret = subn_get_opa_aggregate(smp, ibdev, port, 4070 resp_len); 4071 break; 4072 } 4073 break; 4074 case IB_MGMT_METHOD_SET: 4075 switch (attr_id) { 4076 default: 4077 ret = subn_set_opa_sma(attr_id, smp, am, data, 4078 ibdev, port, resp_len); 4079 break; 4080 case OPA_ATTRIB_ID_AGGREGATE: 4081 ret = subn_set_opa_aggregate(smp, ibdev, port, 4082 resp_len); 4083 break; 4084 } 4085 break; 4086 case IB_MGMT_METHOD_TRAP: 4087 case IB_MGMT_METHOD_REPORT: 4088 case IB_MGMT_METHOD_REPORT_RESP: 4089 case IB_MGMT_METHOD_GET_RESP: 4090 /* 4091 * The ib_mad module will call us to process responses 4092 * before checking for other consumers. 4093 * Just tell the caller to process it normally. 4094 */ 4095 ret = IB_MAD_RESULT_SUCCESS; 4096 break; 4097 default: 4098 smp->status |= IB_SMP_UNSUP_METHOD; 4099 ret = reply((struct ib_mad_hdr *)smp); 4100 break; 4101 } 4102 4103 return ret; 4104 } 4105 4106 static int process_subn(struct ib_device *ibdev, int mad_flags, 4107 u8 port, const struct ib_mad *in_mad, 4108 struct ib_mad *out_mad) 4109 { 4110 struct ib_smp *smp = (struct ib_smp *)out_mad; 4111 struct hfi1_ibport *ibp = to_iport(ibdev, port); 4112 int ret; 4113 4114 *out_mad = *in_mad; 4115 if (smp->class_version != 1) { 4116 smp->status |= IB_SMP_UNSUP_VERSION; 4117 ret = reply((struct ib_mad_hdr *)smp); 4118 return ret; 4119 } 4120 4121 ret = check_mkey(ibp, (struct ib_mad_hdr *)smp, mad_flags, 4122 smp->mkey, (__force __be32)smp->dr_slid, 4123 smp->return_path, smp->hop_cnt); 4124 if (ret) { 4125 u32 port_num = be32_to_cpu(smp->attr_mod); 4126 4127 /* 4128 * If this is a get/set portinfo, we already check the 4129 * M_Key if the MAD is for another port and the M_Key 4130 * is OK on the receiving port. This check is needed 4131 * to increment the error counters when the M_Key 4132 * fails to match on *both* ports. 4133 */ 4134 if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO && 4135 (smp->method == IB_MGMT_METHOD_GET || 4136 smp->method == IB_MGMT_METHOD_SET) && 4137 port_num && port_num <= ibdev->phys_port_cnt && 4138 port != port_num) 4139 (void)check_mkey(to_iport(ibdev, port_num), 4140 (struct ib_mad_hdr *)smp, 0, 4141 smp->mkey, 4142 (__force __be32)smp->dr_slid, 4143 smp->return_path, smp->hop_cnt); 4144 ret = IB_MAD_RESULT_FAILURE; 4145 return ret; 4146 } 4147 4148 switch (smp->method) { 4149 case IB_MGMT_METHOD_GET: 4150 switch (smp->attr_id) { 4151 case IB_SMP_ATTR_NODE_INFO: 4152 ret = subn_get_nodeinfo(smp, ibdev, port); 4153 break; 4154 default: 4155 smp->status |= IB_SMP_UNSUP_METH_ATTR; 4156 ret = reply((struct ib_mad_hdr *)smp); 4157 break; 4158 } 4159 break; 4160 } 4161 4162 return ret; 4163 } 4164 4165 static int process_perf(struct ib_device *ibdev, u8 port, 4166 const struct ib_mad *in_mad, 4167 struct ib_mad *out_mad) 4168 { 4169 struct ib_pma_mad *pmp = (struct ib_pma_mad *)out_mad; 4170 struct ib_class_port_info *cpi = (struct ib_class_port_info *) 4171 &pmp->data; 4172 int ret = IB_MAD_RESULT_FAILURE; 4173 4174 *out_mad = *in_mad; 4175 if (pmp->mad_hdr.class_version != 1) { 4176 pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION; 4177 ret = reply((struct ib_mad_hdr *)pmp); 4178 return ret; 4179 } 4180 4181 switch (pmp->mad_hdr.method) { 4182 case IB_MGMT_METHOD_GET: 4183 switch (pmp->mad_hdr.attr_id) { 4184 case IB_PMA_PORT_COUNTERS: 4185 ret = pma_get_ib_portcounters(pmp, ibdev, port); 4186 break; 4187 case IB_PMA_PORT_COUNTERS_EXT: 4188 ret = pma_get_ib_portcounters_ext(pmp, ibdev, port); 4189 break; 4190 case IB_PMA_CLASS_PORT_INFO: 4191 cpi->capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; 4192 ret = reply((struct ib_mad_hdr *)pmp); 4193 break; 4194 default: 4195 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; 4196 ret = reply((struct ib_mad_hdr *)pmp); 4197 break; 4198 } 4199 break; 4200 4201 case IB_MGMT_METHOD_SET: 4202 if (pmp->mad_hdr.attr_id) { 4203 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; 4204 ret = reply((struct ib_mad_hdr *)pmp); 4205 } 4206 break; 4207 4208 case IB_MGMT_METHOD_TRAP: 4209 case IB_MGMT_METHOD_GET_RESP: 4210 /* 4211 * The ib_mad module will call us to process responses 4212 * before checking for other consumers. 4213 * Just tell the caller to process it normally. 4214 */ 4215 ret = IB_MAD_RESULT_SUCCESS; 4216 break; 4217 4218 default: 4219 pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD; 4220 ret = reply((struct ib_mad_hdr *)pmp); 4221 break; 4222 } 4223 4224 return ret; 4225 } 4226 4227 static int process_perf_opa(struct ib_device *ibdev, u8 port, 4228 const struct opa_mad *in_mad, 4229 struct opa_mad *out_mad, u32 *resp_len) 4230 { 4231 struct opa_pma_mad *pmp = (struct opa_pma_mad *)out_mad; 4232 int ret; 4233 4234 *out_mad = *in_mad; 4235 4236 if (pmp->mad_hdr.class_version != OPA_SM_CLASS_VERSION) { 4237 pmp->mad_hdr.status |= IB_SMP_UNSUP_VERSION; 4238 return reply((struct ib_mad_hdr *)pmp); 4239 } 4240 4241 *resp_len = sizeof(pmp->mad_hdr); 4242 4243 switch (pmp->mad_hdr.method) { 4244 case IB_MGMT_METHOD_GET: 4245 switch (pmp->mad_hdr.attr_id) { 4246 case IB_PMA_CLASS_PORT_INFO: 4247 ret = pma_get_opa_classportinfo(pmp, ibdev, resp_len); 4248 break; 4249 case OPA_PM_ATTRIB_ID_PORT_STATUS: 4250 ret = pma_get_opa_portstatus(pmp, ibdev, port, 4251 resp_len); 4252 break; 4253 case OPA_PM_ATTRIB_ID_DATA_PORT_COUNTERS: 4254 ret = pma_get_opa_datacounters(pmp, ibdev, port, 4255 resp_len); 4256 break; 4257 case OPA_PM_ATTRIB_ID_ERROR_PORT_COUNTERS: 4258 ret = pma_get_opa_porterrors(pmp, ibdev, port, 4259 resp_len); 4260 break; 4261 case OPA_PM_ATTRIB_ID_ERROR_INFO: 4262 ret = pma_get_opa_errorinfo(pmp, ibdev, port, 4263 resp_len); 4264 break; 4265 default: 4266 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; 4267 ret = reply((struct ib_mad_hdr *)pmp); 4268 break; 4269 } 4270 break; 4271 4272 case IB_MGMT_METHOD_SET: 4273 switch (pmp->mad_hdr.attr_id) { 4274 case OPA_PM_ATTRIB_ID_CLEAR_PORT_STATUS: 4275 ret = pma_set_opa_portstatus(pmp, ibdev, port, 4276 resp_len); 4277 break; 4278 case OPA_PM_ATTRIB_ID_ERROR_INFO: 4279 ret = pma_set_opa_errorinfo(pmp, ibdev, port, 4280 resp_len); 4281 break; 4282 default: 4283 pmp->mad_hdr.status |= IB_SMP_UNSUP_METH_ATTR; 4284 ret = reply((struct ib_mad_hdr *)pmp); 4285 break; 4286 } 4287 break; 4288 4289 case IB_MGMT_METHOD_TRAP: 4290 case IB_MGMT_METHOD_GET_RESP: 4291 /* 4292 * The ib_mad module will call us to process responses 4293 * before checking for other consumers. 4294 * Just tell the caller to process it normally. 4295 */ 4296 ret = IB_MAD_RESULT_SUCCESS; 4297 break; 4298 4299 default: 4300 pmp->mad_hdr.status |= IB_SMP_UNSUP_METHOD; 4301 ret = reply((struct ib_mad_hdr *)pmp); 4302 break; 4303 } 4304 4305 return ret; 4306 } 4307 4308 static int hfi1_process_opa_mad(struct ib_device *ibdev, int mad_flags, 4309 u8 port, const struct ib_wc *in_wc, 4310 const struct ib_grh *in_grh, 4311 const struct opa_mad *in_mad, 4312 struct opa_mad *out_mad, size_t *out_mad_size, 4313 u16 *out_mad_pkey_index) 4314 { 4315 int ret; 4316 int pkey_idx; 4317 u32 resp_len = 0; 4318 struct hfi1_ibport *ibp = to_iport(ibdev, port); 4319 4320 pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY); 4321 if (pkey_idx < 0) { 4322 pr_warn("failed to find limited mgmt pkey, defaulting 0x%x\n", 4323 hfi1_get_pkey(ibp, 1)); 4324 pkey_idx = 1; 4325 } 4326 *out_mad_pkey_index = (u16)pkey_idx; 4327 4328 switch (in_mad->mad_hdr.mgmt_class) { 4329 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: 4330 case IB_MGMT_CLASS_SUBN_LID_ROUTED: 4331 if (is_local_mad(ibp, in_mad, in_wc)) { 4332 ret = opa_local_smp_check(ibp, in_wc); 4333 if (ret) 4334 return IB_MAD_RESULT_FAILURE; 4335 } 4336 ret = process_subn_opa(ibdev, mad_flags, port, in_mad, 4337 out_mad, &resp_len); 4338 goto bail; 4339 case IB_MGMT_CLASS_PERF_MGMT: 4340 ret = process_perf_opa(ibdev, port, in_mad, out_mad, 4341 &resp_len); 4342 goto bail; 4343 4344 default: 4345 ret = IB_MAD_RESULT_SUCCESS; 4346 } 4347 4348 bail: 4349 if (ret & IB_MAD_RESULT_REPLY) 4350 *out_mad_size = round_up(resp_len, 8); 4351 else if (ret & IB_MAD_RESULT_SUCCESS) 4352 *out_mad_size = in_wc->byte_len - sizeof(struct ib_grh); 4353 4354 return ret; 4355 } 4356 4357 static int hfi1_process_ib_mad(struct ib_device *ibdev, int mad_flags, u8 port, 4358 const struct ib_wc *in_wc, 4359 const struct ib_grh *in_grh, 4360 const struct ib_mad *in_mad, 4361 struct ib_mad *out_mad) 4362 { 4363 int ret; 4364 4365 switch (in_mad->mad_hdr.mgmt_class) { 4366 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: 4367 case IB_MGMT_CLASS_SUBN_LID_ROUTED: 4368 ret = process_subn(ibdev, mad_flags, port, in_mad, out_mad); 4369 break; 4370 case IB_MGMT_CLASS_PERF_MGMT: 4371 ret = process_perf(ibdev, port, in_mad, out_mad); 4372 break; 4373 default: 4374 ret = IB_MAD_RESULT_SUCCESS; 4375 break; 4376 } 4377 4378 return ret; 4379 } 4380 4381 /** 4382 * hfi1_process_mad - process an incoming MAD packet 4383 * @ibdev: the infiniband device this packet came in on 4384 * @mad_flags: MAD flags 4385 * @port: the port number this packet came in on 4386 * @in_wc: the work completion entry for this packet 4387 * @in_grh: the global route header for this packet 4388 * @in_mad: the incoming MAD 4389 * @out_mad: any outgoing MAD reply 4390 * 4391 * Returns IB_MAD_RESULT_SUCCESS if this is a MAD that we are not 4392 * interested in processing. 4393 * 4394 * Note that the verbs framework has already done the MAD sanity checks, 4395 * and hop count/pointer updating for IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE 4396 * MADs. 4397 * 4398 * This is called by the ib_mad module. 4399 */ 4400 int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u8 port, 4401 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 4402 const struct ib_mad_hdr *in_mad, size_t in_mad_size, 4403 struct ib_mad_hdr *out_mad, size_t *out_mad_size, 4404 u16 *out_mad_pkey_index) 4405 { 4406 switch (in_mad->base_version) { 4407 case OPA_MGMT_BASE_VERSION: 4408 if (unlikely(in_mad_size != sizeof(struct opa_mad))) { 4409 dev_err(ibdev->dev.parent, "invalid in_mad_size\n"); 4410 return IB_MAD_RESULT_FAILURE; 4411 } 4412 return hfi1_process_opa_mad(ibdev, mad_flags, port, 4413 in_wc, in_grh, 4414 (struct opa_mad *)in_mad, 4415 (struct opa_mad *)out_mad, 4416 out_mad_size, 4417 out_mad_pkey_index); 4418 case IB_MGMT_BASE_VERSION: 4419 return hfi1_process_ib_mad(ibdev, mad_flags, port, 4420 in_wc, in_grh, 4421 (const struct ib_mad *)in_mad, 4422 (struct ib_mad *)out_mad); 4423 default: 4424 break; 4425 } 4426 4427 return IB_MAD_RESULT_FAILURE; 4428 } 4429