1/* 2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33#include <linux/mlx5/vport.h> 34#include <rdma/ib_mad.h> 35#include <rdma/ib_smi.h> 36#include <rdma/ib_pma.h> 37#include "mlx5_ib.h" 38#include "cmd.h" 39 40enum { 41 MLX5_IB_VENDOR_CLASS1 = 0x9, 42 MLX5_IB_VENDOR_CLASS2 = 0xa 43}; 44 45static bool can_do_mad_ifc(struct mlx5_ib_dev *dev, u32 port_num, 46 struct ib_mad *in_mad) 47{ 48 if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED && 49 in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 50 return true; 51 return dev->port_caps[port_num - 1].has_smi; 52} 53 54static int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, 55 int ignore_bkey, u32 port, const struct ib_wc *in_wc, 56 const struct ib_grh *in_grh, const void *in_mad, 57 void *response_mad) 58{ 59 u8 op_modifier = 0; 60 61 if (!can_do_mad_ifc(dev, port, (struct ib_mad *)in_mad)) 62 return -EPERM; 63 64 /* Key check traps can't be generated unless we have in_wc to 65 * tell us where to send the trap. 66 */ 67 if (ignore_mkey || !in_wc) 68 op_modifier |= 0x1; 69 if (ignore_bkey || !in_wc) 70 op_modifier |= 0x2; 71 72 return mlx5_cmd_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, 73 port); 74} 75 76static void pma_cnt_ext_assign(struct ib_pma_portcounters_ext *pma_cnt_ext, 77 void *out) 78{ 79#define MLX5_SUM_CNT(p, cntr1, cntr2) \ 80 (MLX5_GET64(query_vport_counter_out, p, cntr1) + \ 81 MLX5_GET64(query_vport_counter_out, p, cntr2)) 82 83 pma_cnt_ext->port_xmit_data = 84 cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.octets, 85 transmitted_ib_multicast.octets) >> 2); 86 pma_cnt_ext->port_rcv_data = 87 cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.octets, 88 received_ib_multicast.octets) >> 2); 89 pma_cnt_ext->port_xmit_packets = 90 cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.packets, 91 transmitted_ib_multicast.packets)); 92 pma_cnt_ext->port_rcv_packets = 93 cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.packets, 94 received_ib_multicast.packets)); 95 pma_cnt_ext->port_unicast_xmit_packets = 96 MLX5_GET64_BE(query_vport_counter_out, 97 out, transmitted_ib_unicast.packets); 98 pma_cnt_ext->port_unicast_rcv_packets = 99 MLX5_GET64_BE(query_vport_counter_out, 100 out, received_ib_unicast.packets); 101 pma_cnt_ext->port_multicast_xmit_packets = 102 MLX5_GET64_BE(query_vport_counter_out, 103 out, transmitted_ib_multicast.packets); 104 pma_cnt_ext->port_multicast_rcv_packets = 105 MLX5_GET64_BE(query_vport_counter_out, 106 out, received_ib_multicast.packets); 107} 108 109static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt, 110 void *out) 111{ 112 /* Traffic counters will be reported in 113 * their 64bit form via ib_pma_portcounters_ext by default. 114 */ 115 void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out, 116 counter_set); 117 118#define MLX5_ASSIGN_PMA_CNTR(counter_var, counter_name) { \ 119 counter_var = MLX5_GET_BE(typeof(counter_var), \ 120 ib_port_cntrs_grp_data_layout, \ 121 out_pma, counter_name); \ 122 } 123 124 MLX5_ASSIGN_PMA_CNTR(pma_cnt->symbol_error_counter, 125 symbol_error_counter); 126 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_error_recovery_counter, 127 link_error_recovery_counter); 128 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_downed_counter, 129 link_downed_counter); 130 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_errors, 131 port_rcv_errors); 132 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_remphys_errors, 133 port_rcv_remote_physical_errors); 134 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_switch_relay_errors, 135 port_rcv_switch_relay_errors); 136 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_discards, 137 port_xmit_discards); 138 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors, 139 port_xmit_constraint_errors); 140 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_wait, 141 port_xmit_wait); 142 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors, 143 port_rcv_constraint_errors); 144 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors, 145 link_overrun_errors); 146 MLX5_ASSIGN_PMA_CNTR(pma_cnt->vl15_dropped, 147 vl_15_dropped); 148} 149 150static int query_ib_ppcnt(struct mlx5_core_dev *dev, u8 port_num, void *out, 151 size_t sz) 152{ 153 u32 *in; 154 int err; 155 156 in = kvzalloc(sz, GFP_KERNEL); 157 if (!in) { 158 err = -ENOMEM; 159 return err; 160 } 161 162 MLX5_SET(ppcnt_reg, in, local_port, port_num); 163 164 MLX5_SET(ppcnt_reg, in, grp, MLX5_INFINIBAND_PORT_COUNTERS_GROUP); 165 err = mlx5_core_access_reg(dev, in, sz, out, 166 sz, MLX5_REG_PPCNT, 0, 0); 167 168 kvfree(in); 169 return err; 170} 171 172static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num, 173 const struct ib_mad *in_mad, struct ib_mad *out_mad) 174{ 175 struct mlx5_core_dev *mdev; 176 bool native_port = true; 177 u32 mdev_port_num; 178 void *out_cnt; 179 int err; 180 181 mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num); 182 if (!mdev) { 183 /* Fail to get the native port, likely due to 2nd port is still 184 * unaffiliated. In such case default to 1st port and attached 185 * PF device. 186 */ 187 native_port = false; 188 mdev = dev->mdev; 189 mdev_port_num = 1; 190 } 191 if (MLX5_CAP_GEN(dev->mdev, num_ports) == 1 && 192 !mlx5_core_mp_enabled(mdev)) { 193 /* set local port to one for Function-Per-Port HCA. */ 194 mdev = dev->mdev; 195 mdev_port_num = 1; 196 } 197 198 /* Declaring support of extended counters */ 199 if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) { 200 struct ib_class_port_info cpi = {}; 201 202 cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; 203 memcpy((out_mad->data + 40), &cpi, sizeof(cpi)); 204 err = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 205 goto done; 206 } 207 208 if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) { 209 struct ib_pma_portcounters_ext *pma_cnt_ext = 210 (struct ib_pma_portcounters_ext *)(out_mad->data + 40); 211 int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); 212 213 out_cnt = kvzalloc(sz, GFP_KERNEL); 214 if (!out_cnt) { 215 err = IB_MAD_RESULT_FAILURE; 216 goto done; 217 } 218 219 err = mlx5_core_query_vport_counter(mdev, 0, 0, mdev_port_num, 220 out_cnt); 221 if (!err) 222 pma_cnt_ext_assign(pma_cnt_ext, out_cnt); 223 } else { 224 struct ib_pma_portcounters *pma_cnt = 225 (struct ib_pma_portcounters *)(out_mad->data + 40); 226 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 227 228 out_cnt = kvzalloc(sz, GFP_KERNEL); 229 if (!out_cnt) { 230 err = IB_MAD_RESULT_FAILURE; 231 goto done; 232 } 233 234 err = query_ib_ppcnt(mdev, mdev_port_num, out_cnt, sz); 235 if (!err) 236 pma_cnt_assign(pma_cnt, out_cnt); 237 } 238 kvfree(out_cnt); 239 err = err ? IB_MAD_RESULT_FAILURE : 240 IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 241done: 242 if (native_port) 243 mlx5_ib_put_native_port_mdev(dev, port_num); 244 return err; 245} 246 247int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, 248 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 249 const struct ib_mad *in, struct ib_mad *out, 250 size_t *out_mad_size, u16 *out_mad_pkey_index) 251{ 252 struct mlx5_ib_dev *dev = to_mdev(ibdev); 253 u8 mgmt_class = in->mad_hdr.mgmt_class; 254 u8 method = in->mad_hdr.method; 255 u16 slid; 256 int err; 257 258 slid = in_wc ? ib_lid_cpu16(in_wc->slid) : 259 be16_to_cpu(IB_LID_PERMISSIVE); 260 261 if (method == IB_MGMT_METHOD_TRAP && !slid) 262 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 263 264 switch (mgmt_class) { 265 case IB_MGMT_CLASS_SUBN_LID_ROUTED: 266 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: { 267 if (method != IB_MGMT_METHOD_GET && 268 method != IB_MGMT_METHOD_SET && 269 method != IB_MGMT_METHOD_TRAP_REPRESS) 270 return IB_MAD_RESULT_SUCCESS; 271 272 /* Don't process SMInfo queries -- the SMA can't handle them. 273 */ 274 if (in->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO) 275 return IB_MAD_RESULT_SUCCESS; 276 } break; 277 case IB_MGMT_CLASS_PERF_MGMT: 278 if (MLX5_CAP_GEN(dev->mdev, vport_counters) && 279 method == IB_MGMT_METHOD_GET) 280 return process_pma_cmd(dev, port_num, in, out); 281 fallthrough; 282 case MLX5_IB_VENDOR_CLASS1: 283 case MLX5_IB_VENDOR_CLASS2: 284 case IB_MGMT_CLASS_CONG_MGMT: { 285 if (method != IB_MGMT_METHOD_GET && 286 method != IB_MGMT_METHOD_SET) 287 return IB_MAD_RESULT_SUCCESS; 288 } break; 289 default: 290 return IB_MAD_RESULT_SUCCESS; 291 } 292 293 err = mlx5_MAD_IFC(to_mdev(ibdev), mad_flags & IB_MAD_IGNORE_MKEY, 294 mad_flags & IB_MAD_IGNORE_BKEY, port_num, in_wc, 295 in_grh, in, out); 296 if (err) 297 return IB_MAD_RESULT_FAILURE; 298 299 /* set return bit in status of directed route responses */ 300 if (mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 301 out->mad_hdr.status |= cpu_to_be16(1 << 15); 302 303 if (method == IB_MGMT_METHOD_TRAP_REPRESS) 304 /* no response for trap repress */ 305 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 306 307 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 308} 309 310int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, unsigned int port) 311{ 312 struct ib_smp *in_mad; 313 struct ib_smp *out_mad; 314 int err = -ENOMEM; 315 u16 packet_error; 316 317 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 318 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 319 if (!in_mad || !out_mad) 320 goto out; 321 322 ib_init_query_mad(in_mad); 323 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 324 in_mad->attr_mod = cpu_to_be32(port); 325 326 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 327 328 packet_error = be16_to_cpu(out_mad->status); 329 330 dev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? 331 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; 332 333out: 334 kfree(in_mad); 335 kfree(out_mad); 336 return err; 337} 338 339static int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, 340 struct ib_smp *out_mad) 341{ 342 struct ib_smp *in_mad; 343 int err; 344 345 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 346 if (!in_mad) 347 return -ENOMEM; 348 349 ib_init_query_mad(in_mad); 350 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 351 352 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, 353 out_mad); 354 355 kfree(in_mad); 356 return err; 357} 358 359int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 360 __be64 *sys_image_guid) 361{ 362 struct ib_smp *out_mad; 363 int err; 364 365 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 366 if (!out_mad) 367 return -ENOMEM; 368 369 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 370 if (err) 371 goto out; 372 373 memcpy(sys_image_guid, out_mad->data + 4, 8); 374 375out: 376 kfree(out_mad); 377 378 return err; 379} 380 381int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 382 u16 *max_pkeys) 383{ 384 struct ib_smp *out_mad; 385 int err; 386 387 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 388 if (!out_mad) 389 return -ENOMEM; 390 391 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 392 if (err) 393 goto out; 394 395 *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); 396 397out: 398 kfree(out_mad); 399 400 return err; 401} 402 403int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 404 u32 *vendor_id) 405{ 406 struct ib_smp *out_mad; 407 int err; 408 409 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 410 if (!out_mad) 411 return -ENOMEM; 412 413 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 414 if (err) 415 goto out; 416 417 *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; 418 419out: 420 kfree(out_mad); 421 422 return err; 423} 424 425int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) 426{ 427 struct ib_smp *in_mad; 428 struct ib_smp *out_mad; 429 int err = -ENOMEM; 430 431 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 432 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 433 if (!in_mad || !out_mad) 434 goto out; 435 436 ib_init_query_mad(in_mad); 437 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 438 439 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 440 if (err) 441 goto out; 442 443 memcpy(node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 444out: 445 kfree(in_mad); 446 kfree(out_mad); 447 return err; 448} 449 450int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) 451{ 452 struct ib_smp *in_mad; 453 struct ib_smp *out_mad; 454 int err = -ENOMEM; 455 456 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 457 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 458 if (!in_mad || !out_mad) 459 goto out; 460 461 ib_init_query_mad(in_mad); 462 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 463 464 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 465 if (err) 466 goto out; 467 468 memcpy(node_guid, out_mad->data + 12, 8); 469out: 470 kfree(in_mad); 471 kfree(out_mad); 472 return err; 473} 474 475int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u32 port, u16 index, 476 u16 *pkey) 477{ 478 struct ib_smp *in_mad; 479 struct ib_smp *out_mad; 480 int err = -ENOMEM; 481 482 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 483 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 484 if (!in_mad || !out_mad) 485 goto out; 486 487 ib_init_query_mad(in_mad); 488 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 489 in_mad->attr_mod = cpu_to_be32(index / 32); 490 491 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 492 out_mad); 493 if (err) 494 goto out; 495 496 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); 497 498out: 499 kfree(in_mad); 500 kfree(out_mad); 501 return err; 502} 503 504int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u32 port, int index, 505 union ib_gid *gid) 506{ 507 struct ib_smp *in_mad; 508 struct ib_smp *out_mad; 509 int err = -ENOMEM; 510 511 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 512 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 513 if (!in_mad || !out_mad) 514 goto out; 515 516 ib_init_query_mad(in_mad); 517 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 518 in_mad->attr_mod = cpu_to_be32(port); 519 520 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 521 out_mad); 522 if (err) 523 goto out; 524 525 memcpy(gid->raw, out_mad->data + 8, 8); 526 527 ib_init_query_mad(in_mad); 528 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 529 in_mad->attr_mod = cpu_to_be32(index / 8); 530 531 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 532 out_mad); 533 if (err) 534 goto out; 535 536 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 537 538out: 539 kfree(in_mad); 540 kfree(out_mad); 541 return err; 542} 543 544int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port, 545 struct ib_port_attr *props) 546{ 547 struct mlx5_ib_dev *dev = to_mdev(ibdev); 548 struct mlx5_core_dev *mdev = dev->mdev; 549 struct ib_smp *in_mad; 550 struct ib_smp *out_mad; 551 int ext_active_speed; 552 int err = -ENOMEM; 553 554 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 555 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 556 if (!in_mad || !out_mad) 557 goto out; 558 559 /* props being zeroed by the caller, avoid zeroing it here */ 560 561 ib_init_query_mad(in_mad); 562 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 563 in_mad->attr_mod = cpu_to_be32(port); 564 565 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); 566 if (err) { 567 mlx5_ib_warn(dev, "err %d\n", err); 568 goto out; 569 } 570 571 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); 572 props->lmc = out_mad->data[34] & 0x7; 573 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); 574 props->sm_sl = out_mad->data[36] & 0xf; 575 props->state = out_mad->data[32] & 0xf; 576 props->phys_state = out_mad->data[33] >> 4; 577 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); 578 props->gid_tbl_len = out_mad->data[50]; 579 props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); 580 props->pkey_tbl_len = dev->pkey_table_len; 581 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); 582 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); 583 props->active_width = out_mad->data[31] & 0xf; 584 props->active_speed = out_mad->data[35] >> 4; 585 props->max_mtu = out_mad->data[41] & 0xf; 586 props->active_mtu = out_mad->data[36] >> 4; 587 props->subnet_timeout = out_mad->data[51] & 0x1f; 588 props->max_vl_num = out_mad->data[37] >> 4; 589 props->init_type_reply = out_mad->data[41] >> 4; 590 591 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP) { 592 props->port_cap_flags2 = 593 be16_to_cpup((__be16 *)(out_mad->data + 60)); 594 595 if (props->port_cap_flags2 & IB_PORT_LINK_WIDTH_2X_SUP) 596 props->active_width = out_mad->data[31] & 0x1f; 597 } 598 599 /* Check if extended speeds (EDR/FDR/...) are supported */ 600 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 601 ext_active_speed = out_mad->data[62] >> 4; 602 603 switch (ext_active_speed) { 604 case 1: 605 props->active_speed = 16; /* FDR */ 606 break; 607 case 2: 608 props->active_speed = 32; /* EDR */ 609 break; 610 case 4: 611 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP && 612 props->port_cap_flags2 & IB_PORT_LINK_SPEED_HDR_SUP) 613 props->active_speed = IB_SPEED_HDR; 614 break; 615 case 8: 616 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP && 617 props->port_cap_flags2 & IB_PORT_LINK_SPEED_NDR_SUP) 618 props->active_speed = IB_SPEED_NDR; 619 break; 620 } 621 } 622 623 /* Check if extended speeds 2 (XDR/...) are supported */ 624 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP && 625 props->port_cap_flags2 & IB_PORT_EXTENDED_SPEEDS2_SUP) { 626 ext_active_speed = (out_mad->data[56] >> 4) & 0x6; 627 628 switch (ext_active_speed) { 629 case 2: 630 if (props->port_cap_flags2 & IB_PORT_LINK_SPEED_XDR_SUP) 631 props->active_speed = IB_SPEED_XDR; 632 break; 633 } 634 } 635 636 /* If reported active speed is QDR, check if is FDR-10 */ 637 if (props->active_speed == 4) { 638 if (dev->port_caps[port - 1].ext_port_cap & 639 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { 640 ib_init_query_mad(in_mad); 641 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 642 in_mad->attr_mod = cpu_to_be32(port); 643 644 err = mlx5_MAD_IFC(dev, 1, 1, port, 645 NULL, NULL, in_mad, out_mad); 646 if (err) 647 goto out; 648 649 /* Checking LinkSpeedActive for FDR-10 */ 650 if (out_mad->data[15] & 0x1) 651 props->active_speed = 8; 652 } 653 } 654 655out: 656 kfree(in_mad); 657 kfree(out_mad); 658 659 return err; 660} 661