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/cmd.h> 34 #include <linux/mlx5/vport.h> 35 #include <rdma/ib_mad.h> 36 #include <rdma/ib_smi.h> 37 #include <rdma/ib_pma.h> 38 #include "mlx5_ib.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 int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey, 55 u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, 56 const void *in_mad, void *response_mad) 57 { 58 u8 op_modifier = 0; 59 60 if (!can_do_mad_ifc(dev, port, (struct ib_mad *)in_mad)) 61 return -EPERM; 62 63 /* Key check traps can't be generated unless we have in_wc to 64 * tell us where to send the trap. 65 */ 66 if (ignore_mkey || !in_wc) 67 op_modifier |= 0x1; 68 if (ignore_bkey || !in_wc) 69 op_modifier |= 0x2; 70 71 return mlx5_core_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, port); 72 } 73 74 static int process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 75 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 76 const struct ib_mad *in_mad, struct ib_mad *out_mad) 77 { 78 u16 slid; 79 int err; 80 81 slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE); 82 83 if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) 84 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 85 86 if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED || 87 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 88 if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && 89 in_mad->mad_hdr.method != IB_MGMT_METHOD_SET && 90 in_mad->mad_hdr.method != IB_MGMT_METHOD_TRAP_REPRESS) 91 return IB_MAD_RESULT_SUCCESS; 92 93 /* Don't process SMInfo queries -- the SMA can't handle them. 94 */ 95 if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO) 96 return IB_MAD_RESULT_SUCCESS; 97 } else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT || 98 in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS1 || 99 in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS2 || 100 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_CONG_MGMT) { 101 if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && 102 in_mad->mad_hdr.method != IB_MGMT_METHOD_SET) 103 return IB_MAD_RESULT_SUCCESS; 104 } else { 105 return IB_MAD_RESULT_SUCCESS; 106 } 107 108 err = mlx5_MAD_IFC(to_mdev(ibdev), 109 mad_flags & IB_MAD_IGNORE_MKEY, 110 mad_flags & IB_MAD_IGNORE_BKEY, 111 port_num, in_wc, in_grh, in_mad, out_mad); 112 if (err) 113 return IB_MAD_RESULT_FAILURE; 114 115 /* set return bit in status of directed route responses */ 116 if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 117 out_mad->mad_hdr.status |= cpu_to_be16(1 << 15); 118 119 if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS) 120 /* no response for trap repress */ 121 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 122 123 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 124 } 125 126 static void pma_cnt_ext_assign(struct ib_pma_portcounters_ext *pma_cnt_ext, 127 void *out) 128 { 129 #define MLX5_SUM_CNT(p, cntr1, cntr2) \ 130 (MLX5_GET64(query_vport_counter_out, p, cntr1) + \ 131 MLX5_GET64(query_vport_counter_out, p, cntr2)) 132 133 pma_cnt_ext->port_xmit_data = 134 cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.octets, 135 transmitted_ib_multicast.octets) >> 2); 136 pma_cnt_ext->port_rcv_data = 137 cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.octets, 138 received_ib_multicast.octets) >> 2); 139 pma_cnt_ext->port_xmit_packets = 140 cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.packets, 141 transmitted_ib_multicast.packets)); 142 pma_cnt_ext->port_rcv_packets = 143 cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.packets, 144 received_ib_multicast.packets)); 145 pma_cnt_ext->port_unicast_xmit_packets = 146 MLX5_GET64_BE(query_vport_counter_out, 147 out, transmitted_ib_unicast.packets); 148 pma_cnt_ext->port_unicast_rcv_packets = 149 MLX5_GET64_BE(query_vport_counter_out, 150 out, received_ib_unicast.packets); 151 pma_cnt_ext->port_multicast_xmit_packets = 152 MLX5_GET64_BE(query_vport_counter_out, 153 out, transmitted_ib_multicast.packets); 154 pma_cnt_ext->port_multicast_rcv_packets = 155 MLX5_GET64_BE(query_vport_counter_out, 156 out, received_ib_multicast.packets); 157 } 158 159 static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt, 160 void *out) 161 { 162 /* Traffic counters will be reported in 163 * their 64bit form via ib_pma_portcounters_ext by default. 164 */ 165 void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out, 166 counter_set); 167 168 #define MLX5_ASSIGN_PMA_CNTR(counter_var, counter_name) { \ 169 counter_var = MLX5_GET_BE(typeof(counter_var), \ 170 ib_port_cntrs_grp_data_layout, \ 171 out_pma, counter_name); \ 172 } 173 174 MLX5_ASSIGN_PMA_CNTR(pma_cnt->symbol_error_counter, 175 symbol_error_counter); 176 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_error_recovery_counter, 177 link_error_recovery_counter); 178 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_downed_counter, 179 link_downed_counter); 180 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_errors, 181 port_rcv_errors); 182 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_remphys_errors, 183 port_rcv_remote_physical_errors); 184 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_switch_relay_errors, 185 port_rcv_switch_relay_errors); 186 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_discards, 187 port_xmit_discards); 188 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors, 189 port_xmit_constraint_errors); 190 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_wait, 191 port_xmit_wait); 192 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors, 193 port_rcv_constraint_errors); 194 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors, 195 link_overrun_errors); 196 MLX5_ASSIGN_PMA_CNTR(pma_cnt->vl15_dropped, 197 vl_15_dropped); 198 } 199 200 static int process_pma_cmd(struct ib_device *ibdev, u8 port_num, 201 const struct ib_mad *in_mad, struct ib_mad *out_mad) 202 { 203 struct mlx5_ib_dev *dev = to_mdev(ibdev); 204 int err; 205 void *out_cnt; 206 207 /* Decalring support of extended counters */ 208 if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) { 209 struct ib_class_port_info cpi = {}; 210 211 cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; 212 memcpy((out_mad->data + 40), &cpi, sizeof(cpi)); 213 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 214 } 215 216 if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) { 217 struct ib_pma_portcounters_ext *pma_cnt_ext = 218 (struct ib_pma_portcounters_ext *)(out_mad->data + 40); 219 int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); 220 221 out_cnt = kvzalloc(sz, GFP_KERNEL); 222 if (!out_cnt) 223 return IB_MAD_RESULT_FAILURE; 224 225 err = mlx5_core_query_vport_counter(dev->mdev, 0, 0, 226 port_num, out_cnt, sz); 227 if (!err) 228 pma_cnt_ext_assign(pma_cnt_ext, out_cnt); 229 } else { 230 struct ib_pma_portcounters *pma_cnt = 231 (struct ib_pma_portcounters *)(out_mad->data + 40); 232 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 233 234 out_cnt = kvzalloc(sz, GFP_KERNEL); 235 if (!out_cnt) 236 return IB_MAD_RESULT_FAILURE; 237 238 err = mlx5_core_query_ib_ppcnt(dev->mdev, port_num, 239 out_cnt, sz); 240 if (!err) 241 pma_cnt_assign(pma_cnt, out_cnt); 242 } 243 244 kvfree(out_cnt); 245 if (err) 246 return IB_MAD_RESULT_FAILURE; 247 248 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 249 } 250 251 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 252 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 253 const struct ib_mad_hdr *in, size_t in_mad_size, 254 struct ib_mad_hdr *out, size_t *out_mad_size, 255 u16 *out_mad_pkey_index) 256 { 257 struct mlx5_ib_dev *dev = to_mdev(ibdev); 258 struct mlx5_core_dev *mdev = dev->mdev; 259 const struct ib_mad *in_mad = (const struct ib_mad *)in; 260 struct ib_mad *out_mad = (struct ib_mad *)out; 261 262 if (WARN_ON_ONCE(in_mad_size != sizeof(*in_mad) || 263 *out_mad_size != sizeof(*out_mad))) 264 return IB_MAD_RESULT_FAILURE; 265 266 memset(out_mad->data, 0, sizeof(out_mad->data)); 267 268 if (MLX5_CAP_GEN(mdev, vport_counters) && 269 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT && 270 in_mad->mad_hdr.method == IB_MGMT_METHOD_GET) { 271 return process_pma_cmd(ibdev, port_num, in_mad, out_mad); 272 } else { 273 return process_mad(ibdev, mad_flags, port_num, in_wc, in_grh, 274 in_mad, out_mad); 275 } 276 } 277 278 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port) 279 { 280 struct ib_smp *in_mad = NULL; 281 struct ib_smp *out_mad = NULL; 282 int err = -ENOMEM; 283 u16 packet_error; 284 285 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 286 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 287 if (!in_mad || !out_mad) 288 goto out; 289 290 init_query_mad(in_mad); 291 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 292 in_mad->attr_mod = cpu_to_be32(port); 293 294 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 295 296 packet_error = be16_to_cpu(out_mad->status); 297 298 dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? 299 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; 300 301 out: 302 kfree(in_mad); 303 kfree(out_mad); 304 return err; 305 } 306 307 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, 308 struct ib_smp *out_mad) 309 { 310 struct ib_smp *in_mad = NULL; 311 int err = -ENOMEM; 312 313 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 314 if (!in_mad) 315 return -ENOMEM; 316 317 init_query_mad(in_mad); 318 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 319 320 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, 321 out_mad); 322 323 kfree(in_mad); 324 return err; 325 } 326 327 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 328 __be64 *sys_image_guid) 329 { 330 struct ib_smp *out_mad = NULL; 331 int err = -ENOMEM; 332 333 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 334 if (!out_mad) 335 return -ENOMEM; 336 337 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 338 if (err) 339 goto out; 340 341 memcpy(sys_image_guid, out_mad->data + 4, 8); 342 343 out: 344 kfree(out_mad); 345 346 return err; 347 } 348 349 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 350 u16 *max_pkeys) 351 { 352 struct ib_smp *out_mad = NULL; 353 int err = -ENOMEM; 354 355 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 356 if (!out_mad) 357 return -ENOMEM; 358 359 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 360 if (err) 361 goto out; 362 363 *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); 364 365 out: 366 kfree(out_mad); 367 368 return err; 369 } 370 371 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 372 u32 *vendor_id) 373 { 374 struct ib_smp *out_mad = NULL; 375 int err = -ENOMEM; 376 377 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 378 if (!out_mad) 379 return -ENOMEM; 380 381 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 382 if (err) 383 goto out; 384 385 *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; 386 387 out: 388 kfree(out_mad); 389 390 return err; 391 } 392 393 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) 394 { 395 struct ib_smp *in_mad = NULL; 396 struct ib_smp *out_mad = NULL; 397 int err = -ENOMEM; 398 399 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 400 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 401 if (!in_mad || !out_mad) 402 goto out; 403 404 init_query_mad(in_mad); 405 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 406 407 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 408 if (err) 409 goto out; 410 411 memcpy(node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 412 out: 413 kfree(in_mad); 414 kfree(out_mad); 415 return err; 416 } 417 418 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) 419 { 420 struct ib_smp *in_mad = NULL; 421 struct ib_smp *out_mad = NULL; 422 int err = -ENOMEM; 423 424 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 425 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 426 if (!in_mad || !out_mad) 427 goto out; 428 429 init_query_mad(in_mad); 430 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 431 432 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 433 if (err) 434 goto out; 435 436 memcpy(node_guid, out_mad->data + 12, 8); 437 out: 438 kfree(in_mad); 439 kfree(out_mad); 440 return err; 441 } 442 443 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, 444 u16 *pkey) 445 { 446 struct ib_smp *in_mad = NULL; 447 struct ib_smp *out_mad = NULL; 448 int err = -ENOMEM; 449 450 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 451 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 452 if (!in_mad || !out_mad) 453 goto out; 454 455 init_query_mad(in_mad); 456 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 457 in_mad->attr_mod = cpu_to_be32(index / 32); 458 459 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 460 out_mad); 461 if (err) 462 goto out; 463 464 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); 465 466 out: 467 kfree(in_mad); 468 kfree(out_mad); 469 return err; 470 } 471 472 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, 473 union ib_gid *gid) 474 { 475 struct ib_smp *in_mad = NULL; 476 struct ib_smp *out_mad = NULL; 477 int err = -ENOMEM; 478 479 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 480 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 481 if (!in_mad || !out_mad) 482 goto out; 483 484 init_query_mad(in_mad); 485 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 486 in_mad->attr_mod = cpu_to_be32(port); 487 488 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 489 out_mad); 490 if (err) 491 goto out; 492 493 memcpy(gid->raw, out_mad->data + 8, 8); 494 495 init_query_mad(in_mad); 496 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 497 in_mad->attr_mod = cpu_to_be32(index / 8); 498 499 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 500 out_mad); 501 if (err) 502 goto out; 503 504 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 505 506 out: 507 kfree(in_mad); 508 kfree(out_mad); 509 return err; 510 } 511 512 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, 513 struct ib_port_attr *props) 514 { 515 struct mlx5_ib_dev *dev = to_mdev(ibdev); 516 struct mlx5_core_dev *mdev = dev->mdev; 517 struct ib_smp *in_mad = NULL; 518 struct ib_smp *out_mad = NULL; 519 int ext_active_speed; 520 int err = -ENOMEM; 521 522 if (port < 1 || port > MLX5_CAP_GEN(mdev, num_ports)) { 523 mlx5_ib_warn(dev, "invalid port number %d\n", port); 524 return -EINVAL; 525 } 526 527 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 528 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 529 if (!in_mad || !out_mad) 530 goto out; 531 532 /* props being zeroed by the caller, avoid zeroing it here */ 533 534 init_query_mad(in_mad); 535 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 536 in_mad->attr_mod = cpu_to_be32(port); 537 538 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); 539 if (err) { 540 mlx5_ib_warn(dev, "err %d\n", err); 541 goto out; 542 } 543 544 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); 545 props->lmc = out_mad->data[34] & 0x7; 546 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); 547 props->sm_sl = out_mad->data[36] & 0xf; 548 props->state = out_mad->data[32] & 0xf; 549 props->phys_state = out_mad->data[33] >> 4; 550 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); 551 props->gid_tbl_len = out_mad->data[50]; 552 props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); 553 props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len; 554 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); 555 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); 556 props->active_width = out_mad->data[31] & 0xf; 557 props->active_speed = out_mad->data[35] >> 4; 558 props->max_mtu = out_mad->data[41] & 0xf; 559 props->active_mtu = out_mad->data[36] >> 4; 560 props->subnet_timeout = out_mad->data[51] & 0x1f; 561 props->max_vl_num = out_mad->data[37] >> 4; 562 props->init_type_reply = out_mad->data[41] >> 4; 563 564 /* Check if extended speeds (EDR/FDR/...) are supported */ 565 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 566 ext_active_speed = out_mad->data[62] >> 4; 567 568 switch (ext_active_speed) { 569 case 1: 570 props->active_speed = 16; /* FDR */ 571 break; 572 case 2: 573 props->active_speed = 32; /* EDR */ 574 break; 575 } 576 } 577 578 /* If reported active speed is QDR, check if is FDR-10 */ 579 if (props->active_speed == 4) { 580 if (mdev->port_caps[port - 1].ext_port_cap & 581 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { 582 init_query_mad(in_mad); 583 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 584 in_mad->attr_mod = cpu_to_be32(port); 585 586 err = mlx5_MAD_IFC(dev, 1, 1, port, 587 NULL, NULL, in_mad, out_mad); 588 if (err) 589 goto out; 590 591 /* Checking LinkSpeedActive for FDR-10 */ 592 if (out_mad->data[15] & 0x1) 593 props->active_speed = 8; 594 } 595 } 596 597 out: 598 kfree(in_mad); 599 kfree(out_mad); 600 601 return err; 602 } 603