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 40 enum { 41 MLX5_IB_VENDOR_CLASS1 = 0x9, 42 MLX5_IB_VENDOR_CLASS2 = 0xa 43 }; 44 45 static bool can_do_mad_ifc(struct mlx5_ib_dev *dev, u8 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->mdev->port_caps[port_num - 1].has_smi; 52 } 53 54 static int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, 55 int ignore_bkey, u8 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 76 static 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 } 108 109 static 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 } 149 150 static int process_pma_cmd(struct mlx5_ib_dev *dev, u8 port_num, 151 const struct ib_mad *in_mad, struct ib_mad *out_mad) 152 { 153 struct mlx5_core_dev *mdev; 154 bool native_port = true; 155 u8 mdev_port_num; 156 void *out_cnt; 157 int err; 158 159 mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num); 160 if (!mdev) { 161 /* Fail to get the native port, likely due to 2nd port is still 162 * unaffiliated. In such case default to 1st port and attached 163 * PF device. 164 */ 165 native_port = false; 166 mdev = dev->mdev; 167 mdev_port_num = 1; 168 } 169 /* Declaring support of extended counters */ 170 if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) { 171 struct ib_class_port_info cpi = {}; 172 173 cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; 174 memcpy((out_mad->data + 40), &cpi, sizeof(cpi)); 175 err = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 176 goto done; 177 } 178 179 if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) { 180 struct ib_pma_portcounters_ext *pma_cnt_ext = 181 (struct ib_pma_portcounters_ext *)(out_mad->data + 40); 182 int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); 183 184 out_cnt = kvzalloc(sz, GFP_KERNEL); 185 if (!out_cnt) { 186 err = IB_MAD_RESULT_FAILURE; 187 goto done; 188 } 189 190 err = mlx5_core_query_vport_counter(mdev, 0, 0, mdev_port_num, 191 out_cnt); 192 if (!err) 193 pma_cnt_ext_assign(pma_cnt_ext, out_cnt); 194 } else { 195 struct ib_pma_portcounters *pma_cnt = 196 (struct ib_pma_portcounters *)(out_mad->data + 40); 197 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 198 199 out_cnt = kvzalloc(sz, GFP_KERNEL); 200 if (!out_cnt) { 201 err = IB_MAD_RESULT_FAILURE; 202 goto done; 203 } 204 205 err = mlx5_core_query_ib_ppcnt(mdev, mdev_port_num, 206 out_cnt, sz); 207 if (!err) 208 pma_cnt_assign(pma_cnt, out_cnt); 209 } 210 kvfree(out_cnt); 211 err = err ? IB_MAD_RESULT_FAILURE : 212 IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 213 done: 214 if (native_port) 215 mlx5_ib_put_native_port_mdev(dev, port_num); 216 return err; 217 } 218 219 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 220 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 221 const struct ib_mad *in, struct ib_mad *out, 222 size_t *out_mad_size, u16 *out_mad_pkey_index) 223 { 224 struct mlx5_ib_dev *dev = to_mdev(ibdev); 225 u8 mgmt_class = in->mad_hdr.mgmt_class; 226 u8 method = in->mad_hdr.method; 227 u16 slid; 228 int err; 229 230 slid = in_wc ? ib_lid_cpu16(in_wc->slid) : 231 be16_to_cpu(IB_LID_PERMISSIVE); 232 233 if (method == IB_MGMT_METHOD_TRAP && !slid) 234 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 235 236 switch (mgmt_class) { 237 case IB_MGMT_CLASS_SUBN_LID_ROUTED: 238 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: { 239 if (method != IB_MGMT_METHOD_GET && 240 method != IB_MGMT_METHOD_SET && 241 method != IB_MGMT_METHOD_TRAP_REPRESS) 242 return IB_MAD_RESULT_SUCCESS; 243 244 /* Don't process SMInfo queries -- the SMA can't handle them. 245 */ 246 if (in->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO) 247 return IB_MAD_RESULT_SUCCESS; 248 } break; 249 case IB_MGMT_CLASS_PERF_MGMT: 250 if (MLX5_CAP_GEN(dev->mdev, vport_counters) && 251 method == IB_MGMT_METHOD_GET) 252 return process_pma_cmd(dev, port_num, in, out); 253 fallthrough; 254 case MLX5_IB_VENDOR_CLASS1: 255 case MLX5_IB_VENDOR_CLASS2: 256 case IB_MGMT_CLASS_CONG_MGMT: { 257 if (method != IB_MGMT_METHOD_GET && 258 method != IB_MGMT_METHOD_SET) 259 return IB_MAD_RESULT_SUCCESS; 260 } break; 261 default: 262 return IB_MAD_RESULT_SUCCESS; 263 } 264 265 err = mlx5_MAD_IFC(to_mdev(ibdev), mad_flags & IB_MAD_IGNORE_MKEY, 266 mad_flags & IB_MAD_IGNORE_BKEY, port_num, in_wc, 267 in_grh, in, out); 268 if (err) 269 return IB_MAD_RESULT_FAILURE; 270 271 /* set return bit in status of directed route responses */ 272 if (mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 273 out->mad_hdr.status |= cpu_to_be16(1 << 15); 274 275 if (method == IB_MGMT_METHOD_TRAP_REPRESS) 276 /* no response for trap repress */ 277 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 278 279 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 280 } 281 282 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port) 283 { 284 struct ib_smp *in_mad = NULL; 285 struct ib_smp *out_mad = NULL; 286 int err = -ENOMEM; 287 u16 packet_error; 288 289 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 290 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 291 if (!in_mad || !out_mad) 292 goto out; 293 294 init_query_mad(in_mad); 295 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 296 in_mad->attr_mod = cpu_to_be32(port); 297 298 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 299 300 packet_error = be16_to_cpu(out_mad->status); 301 302 dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? 303 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; 304 305 out: 306 kfree(in_mad); 307 kfree(out_mad); 308 return err; 309 } 310 311 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, 312 struct ib_smp *out_mad) 313 { 314 struct ib_smp *in_mad = NULL; 315 int err = -ENOMEM; 316 317 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 318 if (!in_mad) 319 return -ENOMEM; 320 321 init_query_mad(in_mad); 322 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 323 324 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, 325 out_mad); 326 327 kfree(in_mad); 328 return err; 329 } 330 331 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 332 __be64 *sys_image_guid) 333 { 334 struct ib_smp *out_mad = NULL; 335 int err = -ENOMEM; 336 337 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 338 if (!out_mad) 339 return -ENOMEM; 340 341 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 342 if (err) 343 goto out; 344 345 memcpy(sys_image_guid, out_mad->data + 4, 8); 346 347 out: 348 kfree(out_mad); 349 350 return err; 351 } 352 353 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 354 u16 *max_pkeys) 355 { 356 struct ib_smp *out_mad = NULL; 357 int err = -ENOMEM; 358 359 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 360 if (!out_mad) 361 return -ENOMEM; 362 363 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 364 if (err) 365 goto out; 366 367 *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); 368 369 out: 370 kfree(out_mad); 371 372 return err; 373 } 374 375 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 376 u32 *vendor_id) 377 { 378 struct ib_smp *out_mad = NULL; 379 int err = -ENOMEM; 380 381 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 382 if (!out_mad) 383 return -ENOMEM; 384 385 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 386 if (err) 387 goto out; 388 389 *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; 390 391 out: 392 kfree(out_mad); 393 394 return err; 395 } 396 397 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) 398 { 399 struct ib_smp *in_mad = NULL; 400 struct ib_smp *out_mad = NULL; 401 int err = -ENOMEM; 402 403 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 404 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 405 if (!in_mad || !out_mad) 406 goto out; 407 408 init_query_mad(in_mad); 409 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 410 411 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 412 if (err) 413 goto out; 414 415 memcpy(node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 416 out: 417 kfree(in_mad); 418 kfree(out_mad); 419 return err; 420 } 421 422 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) 423 { 424 struct ib_smp *in_mad = NULL; 425 struct ib_smp *out_mad = NULL; 426 int err = -ENOMEM; 427 428 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 429 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 430 if (!in_mad || !out_mad) 431 goto out; 432 433 init_query_mad(in_mad); 434 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 435 436 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 437 if (err) 438 goto out; 439 440 memcpy(node_guid, out_mad->data + 12, 8); 441 out: 442 kfree(in_mad); 443 kfree(out_mad); 444 return err; 445 } 446 447 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, 448 u16 *pkey) 449 { 450 struct ib_smp *in_mad = NULL; 451 struct ib_smp *out_mad = NULL; 452 int err = -ENOMEM; 453 454 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 455 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 456 if (!in_mad || !out_mad) 457 goto out; 458 459 init_query_mad(in_mad); 460 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 461 in_mad->attr_mod = cpu_to_be32(index / 32); 462 463 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 464 out_mad); 465 if (err) 466 goto out; 467 468 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); 469 470 out: 471 kfree(in_mad); 472 kfree(out_mad); 473 return err; 474 } 475 476 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, 477 union ib_gid *gid) 478 { 479 struct ib_smp *in_mad = NULL; 480 struct ib_smp *out_mad = NULL; 481 int err = -ENOMEM; 482 483 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 484 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 485 if (!in_mad || !out_mad) 486 goto out; 487 488 init_query_mad(in_mad); 489 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 490 in_mad->attr_mod = cpu_to_be32(port); 491 492 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 493 out_mad); 494 if (err) 495 goto out; 496 497 memcpy(gid->raw, out_mad->data + 8, 8); 498 499 init_query_mad(in_mad); 500 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 501 in_mad->attr_mod = cpu_to_be32(index / 8); 502 503 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 504 out_mad); 505 if (err) 506 goto out; 507 508 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 509 510 out: 511 kfree(in_mad); 512 kfree(out_mad); 513 return err; 514 } 515 516 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, 517 struct ib_port_attr *props) 518 { 519 struct mlx5_ib_dev *dev = to_mdev(ibdev); 520 struct mlx5_core_dev *mdev = dev->mdev; 521 struct ib_smp *in_mad = NULL; 522 struct ib_smp *out_mad = NULL; 523 int ext_active_speed; 524 int err = -ENOMEM; 525 526 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 527 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 528 if (!in_mad || !out_mad) 529 goto out; 530 531 /* props being zeroed by the caller, avoid zeroing it here */ 532 533 init_query_mad(in_mad); 534 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 535 in_mad->attr_mod = cpu_to_be32(port); 536 537 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); 538 if (err) { 539 mlx5_ib_warn(dev, "err %d\n", err); 540 goto out; 541 } 542 543 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); 544 props->lmc = out_mad->data[34] & 0x7; 545 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); 546 props->sm_sl = out_mad->data[36] & 0xf; 547 props->state = out_mad->data[32] & 0xf; 548 props->phys_state = out_mad->data[33] >> 4; 549 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); 550 props->gid_tbl_len = out_mad->data[50]; 551 props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); 552 props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len; 553 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); 554 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); 555 props->active_width = out_mad->data[31] & 0xf; 556 props->active_speed = out_mad->data[35] >> 4; 557 props->max_mtu = out_mad->data[41] & 0xf; 558 props->active_mtu = out_mad->data[36] >> 4; 559 props->subnet_timeout = out_mad->data[51] & 0x1f; 560 props->max_vl_num = out_mad->data[37] >> 4; 561 props->init_type_reply = out_mad->data[41] >> 4; 562 563 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP) { 564 props->port_cap_flags2 = 565 be16_to_cpup((__be16 *)(out_mad->data + 60)); 566 567 if (props->port_cap_flags2 & IB_PORT_LINK_WIDTH_2X_SUP) 568 props->active_width = out_mad->data[31] & 0x1f; 569 } 570 571 /* Check if extended speeds (EDR/FDR/...) are supported */ 572 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 573 ext_active_speed = out_mad->data[62] >> 4; 574 575 switch (ext_active_speed) { 576 case 1: 577 props->active_speed = 16; /* FDR */ 578 break; 579 case 2: 580 props->active_speed = 32; /* EDR */ 581 break; 582 case 4: 583 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP && 584 props->port_cap_flags2 & IB_PORT_LINK_SPEED_HDR_SUP) 585 props->active_speed = IB_SPEED_HDR; 586 break; 587 } 588 } 589 590 /* If reported active speed is QDR, check if is FDR-10 */ 591 if (props->active_speed == 4) { 592 if (mdev->port_caps[port - 1].ext_port_cap & 593 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { 594 init_query_mad(in_mad); 595 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 596 in_mad->attr_mod = cpu_to_be32(port); 597 598 err = mlx5_MAD_IFC(dev, 1, 1, port, 599 NULL, NULL, in_mad, out_mad); 600 if (err) 601 goto out; 602 603 /* Checking LinkSpeedActive for FDR-10 */ 604 if (out_mad->data[15] & 0x1) 605 props->active_speed = 8; 606 } 607 } 608 609 out: 610 kfree(in_mad); 611 kfree(out_mad); 612 613 return err; 614 } 615