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 #include "cmd.h" 40 41 enum { 42 MLX5_IB_VENDOR_CLASS1 = 0x9, 43 MLX5_IB_VENDOR_CLASS2 = 0xa 44 }; 45 46 static bool can_do_mad_ifc(struct mlx5_ib_dev *dev, u8 port_num, 47 struct ib_mad *in_mad) 48 { 49 if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED && 50 in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 51 return true; 52 return dev->mdev->port_caps[port_num - 1].has_smi; 53 } 54 55 static int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, 56 int ignore_bkey, u8 port, const struct ib_wc *in_wc, 57 const struct ib_grh *in_grh, const void *in_mad, 58 void *response_mad) 59 { 60 u8 op_modifier = 0; 61 62 if (!can_do_mad_ifc(dev, port, (struct ib_mad *)in_mad)) 63 return -EPERM; 64 65 /* Key check traps can't be generated unless we have in_wc to 66 * tell us where to send the trap. 67 */ 68 if (ignore_mkey || !in_wc) 69 op_modifier |= 0x1; 70 if (ignore_bkey || !in_wc) 71 op_modifier |= 0x2; 72 73 return mlx5_cmd_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, 74 port); 75 } 76 77 static int process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 78 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 79 const struct ib_mad *in_mad, struct ib_mad *out_mad) 80 { 81 u16 slid; 82 int err; 83 84 slid = in_wc ? ib_lid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE); 85 86 if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) 87 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 88 89 if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED || 90 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 91 if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && 92 in_mad->mad_hdr.method != IB_MGMT_METHOD_SET && 93 in_mad->mad_hdr.method != IB_MGMT_METHOD_TRAP_REPRESS) 94 return IB_MAD_RESULT_SUCCESS; 95 96 /* Don't process SMInfo queries -- the SMA can't handle them. 97 */ 98 if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO) 99 return IB_MAD_RESULT_SUCCESS; 100 } else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT || 101 in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS1 || 102 in_mad->mad_hdr.mgmt_class == MLX5_IB_VENDOR_CLASS2 || 103 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_CONG_MGMT) { 104 if (in_mad->mad_hdr.method != IB_MGMT_METHOD_GET && 105 in_mad->mad_hdr.method != IB_MGMT_METHOD_SET) 106 return IB_MAD_RESULT_SUCCESS; 107 } else { 108 return IB_MAD_RESULT_SUCCESS; 109 } 110 111 err = mlx5_MAD_IFC(to_mdev(ibdev), 112 mad_flags & IB_MAD_IGNORE_MKEY, 113 mad_flags & IB_MAD_IGNORE_BKEY, 114 port_num, in_wc, in_grh, in_mad, out_mad); 115 if (err) 116 return IB_MAD_RESULT_FAILURE; 117 118 /* set return bit in status of directed route responses */ 119 if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) 120 out_mad->mad_hdr.status |= cpu_to_be16(1 << 15); 121 122 if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS) 123 /* no response for trap repress */ 124 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED; 125 126 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 127 } 128 129 static void pma_cnt_ext_assign(struct ib_pma_portcounters_ext *pma_cnt_ext, 130 void *out) 131 { 132 #define MLX5_SUM_CNT(p, cntr1, cntr2) \ 133 (MLX5_GET64(query_vport_counter_out, p, cntr1) + \ 134 MLX5_GET64(query_vport_counter_out, p, cntr2)) 135 136 pma_cnt_ext->port_xmit_data = 137 cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.octets, 138 transmitted_ib_multicast.octets) >> 2); 139 pma_cnt_ext->port_rcv_data = 140 cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.octets, 141 received_ib_multicast.octets) >> 2); 142 pma_cnt_ext->port_xmit_packets = 143 cpu_to_be64(MLX5_SUM_CNT(out, transmitted_ib_unicast.packets, 144 transmitted_ib_multicast.packets)); 145 pma_cnt_ext->port_rcv_packets = 146 cpu_to_be64(MLX5_SUM_CNT(out, received_ib_unicast.packets, 147 received_ib_multicast.packets)); 148 pma_cnt_ext->port_unicast_xmit_packets = 149 MLX5_GET64_BE(query_vport_counter_out, 150 out, transmitted_ib_unicast.packets); 151 pma_cnt_ext->port_unicast_rcv_packets = 152 MLX5_GET64_BE(query_vport_counter_out, 153 out, received_ib_unicast.packets); 154 pma_cnt_ext->port_multicast_xmit_packets = 155 MLX5_GET64_BE(query_vport_counter_out, 156 out, transmitted_ib_multicast.packets); 157 pma_cnt_ext->port_multicast_rcv_packets = 158 MLX5_GET64_BE(query_vport_counter_out, 159 out, received_ib_multicast.packets); 160 } 161 162 static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt, 163 void *out) 164 { 165 /* Traffic counters will be reported in 166 * their 64bit form via ib_pma_portcounters_ext by default. 167 */ 168 void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out, 169 counter_set); 170 171 #define MLX5_ASSIGN_PMA_CNTR(counter_var, counter_name) { \ 172 counter_var = MLX5_GET_BE(typeof(counter_var), \ 173 ib_port_cntrs_grp_data_layout, \ 174 out_pma, counter_name); \ 175 } 176 177 MLX5_ASSIGN_PMA_CNTR(pma_cnt->symbol_error_counter, 178 symbol_error_counter); 179 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_error_recovery_counter, 180 link_error_recovery_counter); 181 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_downed_counter, 182 link_downed_counter); 183 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_errors, 184 port_rcv_errors); 185 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_remphys_errors, 186 port_rcv_remote_physical_errors); 187 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_switch_relay_errors, 188 port_rcv_switch_relay_errors); 189 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_discards, 190 port_xmit_discards); 191 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_constraint_errors, 192 port_xmit_constraint_errors); 193 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_xmit_wait, 194 port_xmit_wait); 195 MLX5_ASSIGN_PMA_CNTR(pma_cnt->port_rcv_constraint_errors, 196 port_rcv_constraint_errors); 197 MLX5_ASSIGN_PMA_CNTR(pma_cnt->link_overrun_errors, 198 link_overrun_errors); 199 MLX5_ASSIGN_PMA_CNTR(pma_cnt->vl15_dropped, 200 vl_15_dropped); 201 } 202 203 static int process_pma_cmd(struct mlx5_ib_dev *dev, u8 port_num, 204 const struct ib_mad *in_mad, struct ib_mad *out_mad) 205 { 206 struct mlx5_core_dev *mdev; 207 bool native_port = true; 208 u8 mdev_port_num; 209 void *out_cnt; 210 int err; 211 212 mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num); 213 if (!mdev) { 214 /* Fail to get the native port, likely due to 2nd port is still 215 * unaffiliated. In such case default to 1st port and attached 216 * PF device. 217 */ 218 native_port = false; 219 mdev = dev->mdev; 220 mdev_port_num = 1; 221 } 222 /* Declaring support of extended counters */ 223 if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) { 224 struct ib_class_port_info cpi = {}; 225 226 cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH; 227 memcpy((out_mad->data + 40), &cpi, sizeof(cpi)); 228 err = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 229 goto done; 230 } 231 232 if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) { 233 struct ib_pma_portcounters_ext *pma_cnt_ext = 234 (struct ib_pma_portcounters_ext *)(out_mad->data + 40); 235 int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); 236 237 out_cnt = kvzalloc(sz, GFP_KERNEL); 238 if (!out_cnt) { 239 err = IB_MAD_RESULT_FAILURE; 240 goto done; 241 } 242 243 err = mlx5_core_query_vport_counter(mdev, 0, 0, 244 mdev_port_num, out_cnt, sz); 245 if (!err) 246 pma_cnt_ext_assign(pma_cnt_ext, out_cnt); 247 } else { 248 struct ib_pma_portcounters *pma_cnt = 249 (struct ib_pma_portcounters *)(out_mad->data + 40); 250 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); 251 252 out_cnt = kvzalloc(sz, GFP_KERNEL); 253 if (!out_cnt) { 254 err = IB_MAD_RESULT_FAILURE; 255 goto done; 256 } 257 258 err = mlx5_core_query_ib_ppcnt(mdev, mdev_port_num, 259 out_cnt, sz); 260 if (!err) 261 pma_cnt_assign(pma_cnt, out_cnt); 262 } 263 kvfree(out_cnt); 264 err = err ? IB_MAD_RESULT_FAILURE : 265 IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY; 266 done: 267 if (native_port) 268 mlx5_ib_put_native_port_mdev(dev, port_num); 269 return err; 270 } 271 272 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 273 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 274 const struct ib_mad_hdr *in, size_t in_mad_size, 275 struct ib_mad_hdr *out, size_t *out_mad_size, 276 u16 *out_mad_pkey_index) 277 { 278 struct mlx5_ib_dev *dev = to_mdev(ibdev); 279 const struct ib_mad *in_mad = (const struct ib_mad *)in; 280 struct ib_mad *out_mad = (struct ib_mad *)out; 281 int ret; 282 283 if (WARN_ON_ONCE(in_mad_size != sizeof(*in_mad) || 284 *out_mad_size != sizeof(*out_mad))) 285 return IB_MAD_RESULT_FAILURE; 286 287 memset(out_mad->data, 0, sizeof(out_mad->data)); 288 289 if (MLX5_CAP_GEN(dev->mdev, vport_counters) && 290 in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT && 291 in_mad->mad_hdr.method == IB_MGMT_METHOD_GET) { 292 ret = process_pma_cmd(dev, port_num, in_mad, out_mad); 293 } else { 294 ret = process_mad(ibdev, mad_flags, port_num, in_wc, in_grh, 295 in_mad, out_mad); 296 } 297 return ret; 298 } 299 300 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port) 301 { 302 struct ib_smp *in_mad = NULL; 303 struct ib_smp *out_mad = NULL; 304 int err = -ENOMEM; 305 u16 packet_error; 306 307 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 308 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 309 if (!in_mad || !out_mad) 310 goto out; 311 312 init_query_mad(in_mad); 313 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 314 in_mad->attr_mod = cpu_to_be32(port); 315 316 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 317 318 packet_error = be16_to_cpu(out_mad->status); 319 320 dev->mdev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ? 321 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0; 322 323 out: 324 kfree(in_mad); 325 kfree(out_mad); 326 return err; 327 } 328 329 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, 330 struct ib_smp *out_mad) 331 { 332 struct ib_smp *in_mad = NULL; 333 int err = -ENOMEM; 334 335 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 336 if (!in_mad) 337 return -ENOMEM; 338 339 init_query_mad(in_mad); 340 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 341 342 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, 343 out_mad); 344 345 kfree(in_mad); 346 return err; 347 } 348 349 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 350 __be64 *sys_image_guid) 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 memcpy(sys_image_guid, out_mad->data + 4, 8); 364 365 out: 366 kfree(out_mad); 367 368 return err; 369 } 370 371 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 372 u16 *max_pkeys) 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 *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); 386 387 out: 388 kfree(out_mad); 389 390 return err; 391 } 392 393 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 394 u32 *vendor_id) 395 { 396 struct ib_smp *out_mad = NULL; 397 int err = -ENOMEM; 398 399 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 400 if (!out_mad) 401 return -ENOMEM; 402 403 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad); 404 if (err) 405 goto out; 406 407 *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff; 408 409 out: 410 kfree(out_mad); 411 412 return err; 413 } 414 415 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc) 416 { 417 struct ib_smp *in_mad = NULL; 418 struct ib_smp *out_mad = NULL; 419 int err = -ENOMEM; 420 421 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 422 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 423 if (!in_mad || !out_mad) 424 goto out; 425 426 init_query_mad(in_mad); 427 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 428 429 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 430 if (err) 431 goto out; 432 433 memcpy(node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 434 out: 435 kfree(in_mad); 436 kfree(out_mad); 437 return err; 438 } 439 440 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid) 441 { 442 struct ib_smp *in_mad = NULL; 443 struct ib_smp *out_mad = NULL; 444 int err = -ENOMEM; 445 446 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 447 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 448 if (!in_mad || !out_mad) 449 goto out; 450 451 init_query_mad(in_mad); 452 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 453 454 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 455 if (err) 456 goto out; 457 458 memcpy(node_guid, out_mad->data + 12, 8); 459 out: 460 kfree(in_mad); 461 kfree(out_mad); 462 return err; 463 } 464 465 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, 466 u16 *pkey) 467 { 468 struct ib_smp *in_mad = NULL; 469 struct ib_smp *out_mad = NULL; 470 int err = -ENOMEM; 471 472 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 473 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 474 if (!in_mad || !out_mad) 475 goto out; 476 477 init_query_mad(in_mad); 478 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 479 in_mad->attr_mod = cpu_to_be32(index / 32); 480 481 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 482 out_mad); 483 if (err) 484 goto out; 485 486 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); 487 488 out: 489 kfree(in_mad); 490 kfree(out_mad); 491 return err; 492 } 493 494 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, 495 union ib_gid *gid) 496 { 497 struct ib_smp *in_mad = NULL; 498 struct ib_smp *out_mad = NULL; 499 int err = -ENOMEM; 500 501 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 502 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 503 if (!in_mad || !out_mad) 504 goto out; 505 506 init_query_mad(in_mad); 507 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 508 in_mad->attr_mod = cpu_to_be32(port); 509 510 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 511 out_mad); 512 if (err) 513 goto out; 514 515 memcpy(gid->raw, out_mad->data + 8, 8); 516 517 init_query_mad(in_mad); 518 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 519 in_mad->attr_mod = cpu_to_be32(index / 8); 520 521 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, 522 out_mad); 523 if (err) 524 goto out; 525 526 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 527 528 out: 529 kfree(in_mad); 530 kfree(out_mad); 531 return err; 532 } 533 534 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, 535 struct ib_port_attr *props) 536 { 537 struct mlx5_ib_dev *dev = to_mdev(ibdev); 538 struct mlx5_core_dev *mdev = dev->mdev; 539 struct ib_smp *in_mad = NULL; 540 struct ib_smp *out_mad = NULL; 541 int ext_active_speed; 542 int err = -ENOMEM; 543 544 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 545 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 546 if (!in_mad || !out_mad) 547 goto out; 548 549 /* props being zeroed by the caller, avoid zeroing it here */ 550 551 init_query_mad(in_mad); 552 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 553 in_mad->attr_mod = cpu_to_be32(port); 554 555 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); 556 if (err) { 557 mlx5_ib_warn(dev, "err %d\n", err); 558 goto out; 559 } 560 561 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); 562 props->lmc = out_mad->data[34] & 0x7; 563 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); 564 props->sm_sl = out_mad->data[36] & 0xf; 565 props->state = out_mad->data[32] & 0xf; 566 props->phys_state = out_mad->data[33] >> 4; 567 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); 568 props->gid_tbl_len = out_mad->data[50]; 569 props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); 570 props->pkey_tbl_len = mdev->port_caps[port - 1].pkey_table_len; 571 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); 572 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); 573 props->active_width = out_mad->data[31] & 0xf; 574 props->active_speed = out_mad->data[35] >> 4; 575 props->max_mtu = out_mad->data[41] & 0xf; 576 props->active_mtu = out_mad->data[36] >> 4; 577 props->subnet_timeout = out_mad->data[51] & 0x1f; 578 props->max_vl_num = out_mad->data[37] >> 4; 579 props->init_type_reply = out_mad->data[41] >> 4; 580 581 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP) { 582 props->port_cap_flags2 = 583 be16_to_cpup((__be16 *)(out_mad->data + 60)); 584 585 if (props->port_cap_flags2 & IB_PORT_LINK_WIDTH_2X_SUP) 586 props->active_width = out_mad->data[31] & 0x1f; 587 } 588 589 /* Check if extended speeds (EDR/FDR/...) are supported */ 590 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 591 ext_active_speed = out_mad->data[62] >> 4; 592 593 switch (ext_active_speed) { 594 case 1: 595 props->active_speed = 16; /* FDR */ 596 break; 597 case 2: 598 props->active_speed = 32; /* EDR */ 599 break; 600 case 4: 601 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP && 602 props->port_cap_flags2 & IB_PORT_LINK_SPEED_HDR_SUP) 603 props->active_speed = IB_SPEED_HDR; 604 break; 605 } 606 } 607 608 /* If reported active speed is QDR, check if is FDR-10 */ 609 if (props->active_speed == 4) { 610 if (mdev->port_caps[port - 1].ext_port_cap & 611 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { 612 init_query_mad(in_mad); 613 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 614 in_mad->attr_mod = cpu_to_be32(port); 615 616 err = mlx5_MAD_IFC(dev, 1, 1, port, 617 NULL, NULL, in_mad, out_mad); 618 if (err) 619 goto out; 620 621 /* Checking LinkSpeedActive for FDR-10 */ 622 if (out_mad->data[15] & 0x1) 623 props->active_speed = 8; 624 } 625 } 626 627 out: 628 kfree(in_mad); 629 kfree(out_mad); 630 631 return err; 632 } 633