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 ? ib_lid_cpu16(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 mlx5_core_dev *mdev, u8 port_num, 201 const struct ib_mad *in_mad, struct ib_mad *out_mad) 202 { 203 int err; 204 void *out_cnt; 205 206 /* Declaring support of extended counters */ 207 if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) { 208 struct ib_class_port_info cpi = {}; 209 210 cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; 211 memcpy((out_mad->data + 40), &cpi, sizeof(cpi)); 212 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 213 } 214 215 if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) { 216 struct ib_pma_portcounters_ext *pma_cnt_ext = 217 (struct ib_pma_portcounters_ext *)(out_mad->data + 40); 218 int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); 219 220 out_cnt = kvzalloc(sz, GFP_KERNEL); 221 if (!out_cnt) 222 return IB_MAD_RESULT_FAILURE; 223 224 err = mlx5_core_query_vport_counter(mdev, 0, 0, 225 port_num, out_cnt, sz); 226 if (!err) 227 pma_cnt_ext_assign(pma_cnt_ext, out_cnt); 228 } else { 229 struct ib_pma_portcounters *pma_cnt = 230 (struct ib_pma_portcounters *)(out_mad->data + 40); 231 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 232 233 out_cnt = kvzalloc(sz, GFP_KERNEL); 234 if (!out_cnt) 235 return IB_MAD_RESULT_FAILURE; 236 237 err = mlx5_core_query_ib_ppcnt(mdev, port_num, 238 out_cnt, sz); 239 if (!err) 240 pma_cnt_assign(pma_cnt, out_cnt); 241 } 242 243 kvfree(out_cnt); 244 if (err) 245 return IB_MAD_RESULT_FAILURE; 246 247 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 248 } 249 250 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 251 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 252 const struct ib_mad_hdr *in, size_t in_mad_size, 253 struct ib_mad_hdr *out, size_t *out_mad_size, 254 u16 *out_mad_pkey_index) 255 { 256 struct mlx5_ib_dev *dev = to_mdev(ibdev); 257 const struct ib_mad *in_mad = (const struct ib_mad *)in; 258 struct ib_mad *out_mad = (struct ib_mad *)out; 259 struct mlx5_core_dev *mdev; 260 u8 mdev_port_num; 261 int ret; 262 263 if (WARN_ON_ONCE(in_mad_size != sizeof(*in_mad) || 264 *out_mad_size != sizeof(*out_mad))) 265 return IB_MAD_RESULT_FAILURE; 266 267 memset(out_mad->data, 0, sizeof(out_mad->data)); 268 269 mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num); 270 if (!mdev) 271 return IB_MAD_RESULT_FAILURE; 272 273 if (MLX5_CAP_GEN(mdev, vport_counters) && 274 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT && 275 in_mad->mad_hdr.method == IB_MGMT_METHOD_GET) { 276 ret = process_pma_cmd(mdev, mdev_port_num, in_mad, out_mad); 277 } else { 278 ret = process_mad(ibdev, mad_flags, port_num, in_wc, in_grh, 279 in_mad, out_mad); 280 } 281 mlx5_ib_put_native_port_mdev(dev, port_num); 282 return ret; 283 } 284 285 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port) 286 { 287 struct ib_smp *in_mad = NULL; 288 struct ib_smp *out_mad = NULL; 289 int err = -ENOMEM; 290 u16 packet_error; 291 292 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 293 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 294 if (!in_mad || !out_mad) 295 goto out; 296 297 init_query_mad(in_mad); 298 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 299 in_mad->attr_mod = cpu_to_be32(port); 300 301 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 302 303 packet_error = be16_to_cpu(out_mad->status); 304 305 dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? 306 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; 307 308 out: 309 kfree(in_mad); 310 kfree(out_mad); 311 return err; 312 } 313 314 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, 315 struct ib_smp *out_mad) 316 { 317 struct ib_smp *in_mad = NULL; 318 int err = -ENOMEM; 319 320 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 321 if (!in_mad) 322 return -ENOMEM; 323 324 init_query_mad(in_mad); 325 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 326 327 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, 328 out_mad); 329 330 kfree(in_mad); 331 return err; 332 } 333 334 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 335 __be64 *sys_image_guid) 336 { 337 struct ib_smp *out_mad = NULL; 338 int err = -ENOMEM; 339 340 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 341 if (!out_mad) 342 return -ENOMEM; 343 344 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 345 if (err) 346 goto out; 347 348 memcpy(sys_image_guid, out_mad->data + 4, 8); 349 350 out: 351 kfree(out_mad); 352 353 return err; 354 } 355 356 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 357 u16 *max_pkeys) 358 { 359 struct ib_smp *out_mad = NULL; 360 int err = -ENOMEM; 361 362 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 363 if (!out_mad) 364 return -ENOMEM; 365 366 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 367 if (err) 368 goto out; 369 370 *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); 371 372 out: 373 kfree(out_mad); 374 375 return err; 376 } 377 378 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 379 u32 *vendor_id) 380 { 381 struct ib_smp *out_mad = NULL; 382 int err = -ENOMEM; 383 384 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 385 if (!out_mad) 386 return -ENOMEM; 387 388 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 389 if (err) 390 goto out; 391 392 *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; 393 394 out: 395 kfree(out_mad); 396 397 return err; 398 } 399 400 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) 401 { 402 struct ib_smp *in_mad = NULL; 403 struct ib_smp *out_mad = NULL; 404 int err = -ENOMEM; 405 406 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 407 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 408 if (!in_mad || !out_mad) 409 goto out; 410 411 init_query_mad(in_mad); 412 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 413 414 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 415 if (err) 416 goto out; 417 418 memcpy(node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 419 out: 420 kfree(in_mad); 421 kfree(out_mad); 422 return err; 423 } 424 425 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) 426 { 427 struct ib_smp *in_mad = NULL; 428 struct ib_smp *out_mad = NULL; 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 init_query_mad(in_mad); 437 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 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_guid, out_mad->data + 12, 8); 444 out: 445 kfree(in_mad); 446 kfree(out_mad); 447 return err; 448 } 449 450 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, 451 u16 *pkey) 452 { 453 struct ib_smp *in_mad = NULL; 454 struct ib_smp *out_mad = NULL; 455 int err = -ENOMEM; 456 457 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 458 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 459 if (!in_mad || !out_mad) 460 goto out; 461 462 init_query_mad(in_mad); 463 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 464 in_mad->attr_mod = cpu_to_be32(index / 32); 465 466 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 467 out_mad); 468 if (err) 469 goto out; 470 471 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); 472 473 out: 474 kfree(in_mad); 475 kfree(out_mad); 476 return err; 477 } 478 479 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, 480 union ib_gid *gid) 481 { 482 struct ib_smp *in_mad = NULL; 483 struct ib_smp *out_mad = NULL; 484 int err = -ENOMEM; 485 486 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 487 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 488 if (!in_mad || !out_mad) 489 goto out; 490 491 init_query_mad(in_mad); 492 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 493 in_mad->attr_mod = cpu_to_be32(port); 494 495 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 496 out_mad); 497 if (err) 498 goto out; 499 500 memcpy(gid->raw, out_mad->data + 8, 8); 501 502 init_query_mad(in_mad); 503 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 504 in_mad->attr_mod = cpu_to_be32(index / 8); 505 506 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 507 out_mad); 508 if (err) 509 goto out; 510 511 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 512 513 out: 514 kfree(in_mad); 515 kfree(out_mad); 516 return err; 517 } 518 519 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, 520 struct ib_port_attr *props) 521 { 522 struct mlx5_ib_dev *dev = to_mdev(ibdev); 523 struct mlx5_core_dev *mdev = dev->mdev; 524 struct ib_smp *in_mad = NULL; 525 struct ib_smp *out_mad = NULL; 526 int ext_active_speed; 527 int err = -ENOMEM; 528 529 if (port < 1 || port > dev->num_ports) { 530 mlx5_ib_warn(dev, "invalid port number %d\n", port); 531 return -EINVAL; 532 } 533 534 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 535 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 536 if (!in_mad || !out_mad) 537 goto out; 538 539 /* props being zeroed by the caller, avoid zeroing it here */ 540 541 init_query_mad(in_mad); 542 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 543 in_mad->attr_mod = cpu_to_be32(port); 544 545 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); 546 if (err) { 547 mlx5_ib_warn(dev, "err %d\n", err); 548 goto out; 549 } 550 551 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); 552 props->lmc = out_mad->data[34] & 0x7; 553 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); 554 props->sm_sl = out_mad->data[36] & 0xf; 555 props->state = out_mad->data[32] & 0xf; 556 props->phys_state = out_mad->data[33] >> 4; 557 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); 558 props->gid_tbl_len = out_mad->data[50]; 559 props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); 560 props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len; 561 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); 562 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); 563 props->active_width = out_mad->data[31] & 0xf; 564 props->active_speed = out_mad->data[35] >> 4; 565 props->max_mtu = out_mad->data[41] & 0xf; 566 props->active_mtu = out_mad->data[36] >> 4; 567 props->subnet_timeout = out_mad->data[51] & 0x1f; 568 props->max_vl_num = out_mad->data[37] >> 4; 569 props->init_type_reply = out_mad->data[41] >> 4; 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 } 583 } 584 585 /* If reported active speed is QDR, check if is FDR-10 */ 586 if (props->active_speed == 4) { 587 if (mdev->port_caps[port - 1].ext_port_cap & 588 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { 589 init_query_mad(in_mad); 590 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 591 in_mad->attr_mod = cpu_to_be32(port); 592 593 err = mlx5_MAD_IFC(dev, 1, 1, port, 594 NULL, NULL, in_mad, out_mad); 595 if (err) 596 goto out; 597 598 /* Checking LinkSpeedActive for FDR-10 */ 599 if (out_mad->data[15] & 0x1) 600 props->active_speed = 8; 601 } 602 } 603 604 out: 605 kfree(in_mad); 606 kfree(out_mad); 607 608 return err; 609 } 610