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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 two5 * licenses. You may choose to be licensed under the terms of the GNU6 * General Public License (GPL) Version 2, available from the file7 * COPYING in the main directory of this source tree, or the8 * OpenIB.org BSD license below:9 *10 * Redistribution and use in source and binary forms, with or11 * without modification, are permitted provided that the following12 * conditions are met:13 *14 * - Redistributions of source code must retain the above15 * copyright notice, this list of conditions and the following16 * disclaimer.17 *18 * - Redistributions in binary form must reproduce the above19 * copyright notice, this list of conditions and the following20 * disclaimer in the documentation and/or other materials21 * 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 OF25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE30 * 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 = 0xa43};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 to65 * 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, 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 in113 * 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 void pma_cnt_ext_assign_ppcnt(struct ib_pma_portcounters_ext *cnt_ext,151 void *out)152{153 void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out,154 counter_set);155 156#define MLX5_GET_EXT_CNTR(counter_name) \157 MLX5_GET64(ib_ext_port_cntrs_grp_data_layout, \158 out_pma, counter_name##_high)159 160 cnt_ext->port_xmit_data =161 cpu_to_be64(MLX5_GET_EXT_CNTR(port_xmit_data) >> 2);162 cnt_ext->port_rcv_data =163 cpu_to_be64(MLX5_GET_EXT_CNTR(port_rcv_data) >> 2);164 165 cnt_ext->port_xmit_packets =166 cpu_to_be64(MLX5_GET_EXT_CNTR(port_xmit_pkts));167 cnt_ext->port_rcv_packets =168 cpu_to_be64(MLX5_GET_EXT_CNTR(port_rcv_pkts));169 170 cnt_ext->port_unicast_xmit_packets =171 cpu_to_be64(MLX5_GET_EXT_CNTR(port_unicast_xmit_pkts));172 cnt_ext->port_unicast_rcv_packets =173 cpu_to_be64(MLX5_GET_EXT_CNTR(port_unicast_rcv_pkts));174 175 cnt_ext->port_multicast_xmit_packets =176 cpu_to_be64(MLX5_GET_EXT_CNTR(port_multicast_xmit_pkts));177 cnt_ext->port_multicast_rcv_packets =178 cpu_to_be64(MLX5_GET_EXT_CNTR(port_multicast_rcv_pkts));179}180 181static int query_ib_ppcnt(struct mlx5_core_dev *dev, u8 port_num, u8 plane_num,182 void *out, size_t sz, bool ext)183{184 u32 *in;185 int err;186 187 in = kvzalloc(sz, GFP_KERNEL);188 if (!in) {189 err = -ENOMEM;190 return err;191 }192 193 MLX5_SET(ppcnt_reg, in, local_port, port_num);194 MLX5_SET(ppcnt_reg, in, plane_ind, plane_num);195 196 if (ext)197 MLX5_SET(ppcnt_reg, in, grp,198 MLX5_INFINIBAND_EXTENDED_PORT_COUNTERS_GROUP);199 else200 MLX5_SET(ppcnt_reg, in, grp,201 MLX5_INFINIBAND_PORT_COUNTERS_GROUP);202 err = mlx5_core_access_reg(dev, in, sz, out,203 sz, MLX5_REG_PPCNT, 0, 0);204 205 kvfree(in);206 return err;207}208 209static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num,210 const struct ib_mad *in_mad, struct ib_mad *out_mad)211{212 struct mlx5_core_dev *mdev;213 bool native_port = true;214 u32 mdev_port_num;215 void *out_cnt;216 int err;217 218 mdev = mlx5_ib_get_native_port_mdev(dev, port_num, &mdev_port_num);219 if (!mdev) {220 /* Fail to get the native port, likely due to 2nd port is still221 * unaffiliated. In such case default to 1st port and attached222 * PF device.223 */224 native_port = false;225 mdev = dev->mdev;226 mdev_port_num = 1;227 }228 if (MLX5_CAP_GEN(dev->mdev, num_ports) == 1 &&229 !mlx5_core_mp_enabled(mdev) &&230 dev->ib_dev.type != RDMA_DEVICE_TYPE_SMI) {231 /* set local port to one for Function-Per-Port HCA. */232 mdev = dev->mdev;233 mdev_port_num = 1;234 }235 236 /* Declaring support of extended counters */237 if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO) {238 struct ib_class_port_info cpi = {};239 240 cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;241 memcpy((out_mad->data + 40), &cpi, sizeof(cpi));242 err = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;243 goto done;244 }245 246 if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) {247 struct ib_pma_portcounters_ext *pma_cnt_ext =248 (struct ib_pma_portcounters_ext *)(out_mad->data + 40);249 int sz = max(MLX5_ST_SZ_BYTES(query_vport_counter_out),250 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 if (dev->ib_dev.type == RDMA_DEVICE_TYPE_SMI) {259 err = query_ib_ppcnt(mdev, mdev_port_num,260 port_num, out_cnt, sz, 1);261 if (!err)262 pma_cnt_ext_assign_ppcnt(pma_cnt_ext, out_cnt);263 } else {264 err = mlx5_core_query_vport_counter(mdev, 0, 0,265 mdev_port_num,266 out_cnt);267 if (!err)268 pma_cnt_ext_assign(pma_cnt_ext, out_cnt);269 }270 } else {271 struct ib_pma_portcounters *pma_cnt =272 (struct ib_pma_portcounters *)(out_mad->data + 40);273 int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);274 275 out_cnt = kvzalloc(sz, GFP_KERNEL);276 if (!out_cnt) {277 err = IB_MAD_RESULT_FAILURE;278 goto done;279 }280 281 err = query_ib_ppcnt(mdev, mdev_port_num, 0, out_cnt, sz, 0);282 if (!err)283 pma_cnt_assign(pma_cnt, out_cnt);284 }285 kvfree(out_cnt);286 err = err ? IB_MAD_RESULT_FAILURE :287 IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;288done:289 if (native_port)290 mlx5_ib_put_native_port_mdev(dev, port_num);291 return err;292}293 294int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num,295 const struct ib_wc *in_wc, const struct ib_grh *in_grh,296 const struct ib_mad *in, struct ib_mad *out,297 size_t *out_mad_size, u16 *out_mad_pkey_index)298{299 struct mlx5_ib_dev *dev = to_mdev(ibdev);300 u8 mgmt_class = in->mad_hdr.mgmt_class;301 u8 method = in->mad_hdr.method;302 u16 slid;303 int err;304 305 slid = in_wc ? ib_lid_cpu16(in_wc->slid) :306 be16_to_cpu(IB_LID_PERMISSIVE);307 308 if (method == IB_MGMT_METHOD_TRAP && !slid)309 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;310 311 switch (mgmt_class) {312 case IB_MGMT_CLASS_SUBN_LID_ROUTED:313 case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE: {314 if (method != IB_MGMT_METHOD_GET &&315 method != IB_MGMT_METHOD_SET &&316 method != IB_MGMT_METHOD_TRAP_REPRESS)317 return IB_MAD_RESULT_SUCCESS;318 319 /* Don't process SMInfo queries -- the SMA can't handle them.320 */321 if (in->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO)322 return IB_MAD_RESULT_SUCCESS;323 } break;324 case IB_MGMT_CLASS_PERF_MGMT:325 if (MLX5_CAP_GEN(dev->mdev, vport_counters) &&326 method == IB_MGMT_METHOD_GET)327 return process_pma_cmd(dev, port_num, in, out);328 fallthrough;329 case MLX5_IB_VENDOR_CLASS1:330 case MLX5_IB_VENDOR_CLASS2:331 case IB_MGMT_CLASS_CONG_MGMT: {332 if (method != IB_MGMT_METHOD_GET &&333 method != IB_MGMT_METHOD_SET)334 return IB_MAD_RESULT_SUCCESS;335 } break;336 default:337 return IB_MAD_RESULT_SUCCESS;338 }339 340 err = mlx5_MAD_IFC(to_mdev(ibdev), mad_flags & IB_MAD_IGNORE_MKEY,341 mad_flags & IB_MAD_IGNORE_BKEY, port_num, in_wc,342 in_grh, in, out);343 if (err)344 return IB_MAD_RESULT_FAILURE;345 346 /* set return bit in status of directed route responses */347 if (mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)348 out->mad_hdr.status |= cpu_to_be16(1 << 15);349 350 if (method == IB_MGMT_METHOD_TRAP_REPRESS)351 /* no response for trap repress */352 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;353 354 return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;355}356 357int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, unsigned int port)358{359 struct ib_smp *in_mad;360 struct ib_smp *out_mad;361 int err = -ENOMEM;362 u16 packet_error;363 364 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);365 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);366 if (!in_mad || !out_mad)367 goto out;368 369 ib_init_query_mad(in_mad);370 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO;371 in_mad->attr_mod = cpu_to_be32(port);372 373 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);374 375 packet_error = be16_to_cpu(out_mad->status);376 377 dev->port_caps[port - 1].ext_port_cap = (!err && !packet_error) ?378 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0;379 380out:381 kfree(in_mad);382 kfree(out_mad);383 return err;384}385 386static int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev,387 struct ib_smp *out_mad)388{389 struct ib_smp *in_mad;390 int err;391 392 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);393 if (!in_mad)394 return -ENOMEM;395 396 ib_init_query_mad(in_mad);397 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;398 399 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad,400 out_mad);401 402 kfree(in_mad);403 return err;404}405 406int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev,407 __be64 *sys_image_guid)408{409 struct ib_smp *out_mad;410 int err;411 412 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);413 if (!out_mad)414 return -ENOMEM;415 416 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad);417 if (err)418 goto out;419 420 memcpy(sys_image_guid, out_mad->data + 4, 8);421 422out:423 kfree(out_mad);424 425 return err;426}427 428int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev,429 u16 *max_pkeys)430{431 struct ib_smp *out_mad;432 int err;433 434 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);435 if (!out_mad)436 return -ENOMEM;437 438 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad);439 if (err)440 goto out;441 442 *max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28));443 444out:445 kfree(out_mad);446 447 return err;448}449 450int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev,451 u32 *vendor_id)452{453 struct ib_smp *out_mad;454 int err;455 456 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);457 if (!out_mad)458 return -ENOMEM;459 460 err = mlx5_query_mad_ifc_smp_attr_node_info(ibdev, out_mad);461 if (err)462 goto out;463 464 *vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 0xffff;465 466out:467 kfree(out_mad);468 469 return err;470}471 472int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc)473{474 struct ib_smp *in_mad;475 struct ib_smp *out_mad;476 int err = -ENOMEM;477 478 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);479 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);480 if (!in_mad || !out_mad)481 goto out;482 483 ib_init_query_mad(in_mad);484 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;485 486 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);487 if (err)488 goto out;489 490 memcpy(node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX);491out:492 kfree(in_mad);493 kfree(out_mad);494 return err;495}496 497int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid)498{499 struct ib_smp *in_mad;500 struct ib_smp *out_mad;501 int err = -ENOMEM;502 503 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);504 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);505 if (!in_mad || !out_mad)506 goto out;507 508 ib_init_query_mad(in_mad);509 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;510 511 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);512 if (err)513 goto out;514 515 memcpy(node_guid, out_mad->data + 12, 8);516out:517 kfree(in_mad);518 kfree(out_mad);519 return err;520}521 522int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u32 port, u16 index,523 u16 *pkey)524{525 struct ib_smp *in_mad;526 struct ib_smp *out_mad;527 int err = -ENOMEM;528 529 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);530 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);531 if (!in_mad || !out_mad)532 goto out;533 534 ib_init_query_mad(in_mad);535 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;536 in_mad->attr_mod = cpu_to_be32(index / 32);537 538 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad,539 out_mad);540 if (err)541 goto out;542 543 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]);544 545out:546 kfree(in_mad);547 kfree(out_mad);548 return err;549}550 551int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u32 port, int index,552 union ib_gid *gid)553{554 struct ib_smp *in_mad;555 struct ib_smp *out_mad;556 int err = -ENOMEM;557 558 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);559 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);560 if (!in_mad || !out_mad)561 goto out;562 563 ib_init_query_mad(in_mad);564 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;565 in_mad->attr_mod = cpu_to_be32(port);566 567 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad,568 out_mad);569 if (err)570 goto out;571 572 memcpy(gid->raw, out_mad->data + 8, 8);573 574 ib_init_query_mad(in_mad);575 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;576 in_mad->attr_mod = cpu_to_be32(index / 8);577 578 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad,579 out_mad);580 if (err)581 goto out;582 583 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);584 585out:586 kfree(in_mad);587 kfree(out_mad);588 return err;589}590 591int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port,592 struct ib_port_attr *props)593{594 struct mlx5_ib_dev *dev = to_mdev(ibdev);595 struct mlx5_core_dev *mdev = dev->mdev;596 struct ib_smp *in_mad;597 struct ib_smp *out_mad;598 int ext_active_speed;599 int err = -ENOMEM;600 601 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL);602 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);603 if (!in_mad || !out_mad)604 goto out;605 606 /* props being zeroed by the caller, avoid zeroing it here */607 608 ib_init_query_mad(in_mad);609 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;610 in_mad->attr_mod = cpu_to_be32(port);611 612 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad);613 if (err) {614 mlx5_ib_warn(dev, "err %d\n", err);615 goto out;616 }617 618 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16));619 props->lmc = out_mad->data[34] & 0x7;620 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18));621 props->sm_sl = out_mad->data[36] & 0xf;622 props->state = out_mad->data[32] & 0xf;623 props->phys_state = out_mad->data[33] >> 4;624 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20));625 props->gid_tbl_len = out_mad->data[50];626 props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg);627 props->pkey_tbl_len = dev->pkey_table_len;628 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46));629 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48));630 props->active_width = out_mad->data[31] & 0xf;631 props->active_speed = out_mad->data[35] >> 4;632 props->max_mtu = out_mad->data[41] & 0xf;633 props->active_mtu = out_mad->data[36] >> 4;634 props->subnet_timeout = out_mad->data[51] & 0x1f;635 props->max_vl_num = out_mad->data[37] >> 4;636 props->init_type_reply = out_mad->data[41] >> 4;637 638 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP) {639 props->port_cap_flags2 =640 be16_to_cpup((__be16 *)(out_mad->data + 60));641 642 if (props->port_cap_flags2 & IB_PORT_LINK_WIDTH_2X_SUP)643 props->active_width = out_mad->data[31] & 0x1f;644 }645 646 /* Check if extended speeds (EDR/FDR/...) are supported */647 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {648 ext_active_speed = out_mad->data[62] >> 4;649 650 switch (ext_active_speed) {651 case 1:652 props->active_speed = 16; /* FDR */653 break;654 case 2:655 props->active_speed = 32; /* EDR */656 break;657 case 4:658 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&659 props->port_cap_flags2 & IB_PORT_LINK_SPEED_HDR_SUP)660 props->active_speed = IB_SPEED_HDR;661 break;662 case 8:663 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&664 props->port_cap_flags2 & IB_PORT_LINK_SPEED_NDR_SUP)665 props->active_speed = IB_SPEED_NDR;666 break;667 }668 }669 670 /* Check if extended speeds 2 (XDR/...) are supported */671 if (props->port_cap_flags & IB_PORT_CAP_MASK2_SUP &&672 props->port_cap_flags2 & IB_PORT_EXTENDED_SPEEDS2_SUP) {673 ext_active_speed = (out_mad->data[56] >> 4) & 0x6;674 675 switch (ext_active_speed) {676 case 2:677 if (props->port_cap_flags2 & IB_PORT_LINK_SPEED_XDR_SUP)678 props->active_speed = IB_SPEED_XDR;679 break;680 }681 }682 683 /* If reported active speed is QDR, check if is FDR-10 */684 if (props->active_speed == 4) {685 if (dev->port_caps[port - 1].ext_port_cap &686 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) {687 ib_init_query_mad(in_mad);688 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO;689 in_mad->attr_mod = cpu_to_be32(port);690 691 err = mlx5_MAD_IFC(dev, 1, 1, port,692 NULL, NULL, in_mad, out_mad);693 if (err)694 goto out;695 696 /* Checking LinkSpeedActive for FDR-10 */697 if (out_mad->data[15] & 0x1)698 props->active_speed = 8;699 }700 }701 702out:703 kfree(in_mad);704 kfree(out_mad);705 706 return err;707}708