linux/include/linux/mlx4/device.h
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   1/*
   2 * Copyright (c) 2006, 2007 Cisco Systems, Inc.  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#ifndef MLX4_DEVICE_H
  34#define MLX4_DEVICE_H
  35
  36#include <linux/if_ether.h>
  37#include <linux/pci.h>
  38#include <linux/completion.h>
  39#include <linux/radix-tree.h>
  40#include <linux/cpu_rmap.h>
  41#include <linux/crash_dump.h>
  42
  43#include <linux/refcount.h>
  44
  45#include <linux/timecounter.h>
  46
  47#define DEFAULT_UAR_PAGE_SHIFT  12
  48
  49#define MAX_MSIX_P_PORT         17
  50#define MAX_MSIX                64
  51#define MIN_MSIX_P_PORT         5
  52#define MLX4_IS_LEGACY_EQ_MODE(dev_cap) ((dev_cap).num_comp_vectors < \
  53                                         (dev_cap).num_ports * MIN_MSIX_P_PORT)
  54
  55#define MLX4_MAX_100M_UNITS_VAL         255     /*
  56                                                 * work around: can't set values
  57                                                 * greater then this value when
  58                                                 * using 100 Mbps units.
  59                                                 */
  60#define MLX4_RATELIMIT_100M_UNITS       3       /* 100 Mbps */
  61#define MLX4_RATELIMIT_1G_UNITS         4       /* 1 Gbps */
  62#define MLX4_RATELIMIT_DEFAULT          0x00ff
  63
  64#define MLX4_ROCE_MAX_GIDS      128
  65#define MLX4_ROCE_PF_GIDS       16
  66
  67enum {
  68        MLX4_FLAG_MSI_X         = 1 << 0,
  69        MLX4_FLAG_OLD_PORT_CMDS = 1 << 1,
  70        MLX4_FLAG_MASTER        = 1 << 2,
  71        MLX4_FLAG_SLAVE         = 1 << 3,
  72        MLX4_FLAG_SRIOV         = 1 << 4,
  73        MLX4_FLAG_OLD_REG_MAC   = 1 << 6,
  74        MLX4_FLAG_BONDED        = 1 << 7,
  75        MLX4_FLAG_SECURE_HOST   = 1 << 8,
  76};
  77
  78enum {
  79        MLX4_PORT_CAP_IS_SM     = 1 << 1,
  80        MLX4_PORT_CAP_DEV_MGMT_SUP = 1 << 19,
  81};
  82
  83enum {
  84        MLX4_MAX_PORTS          = 2,
  85        MLX4_MAX_PORT_PKEYS     = 128,
  86        MLX4_MAX_PORT_GIDS      = 128
  87};
  88
  89/* base qkey for use in sriov tunnel-qp/proxy-qp communication.
  90 * These qkeys must not be allowed for general use. This is a 64k range,
  91 * and to test for violation, we use the mask (protect against future chg).
  92 */
  93#define MLX4_RESERVED_QKEY_BASE  (0xFFFF0000)
  94#define MLX4_RESERVED_QKEY_MASK  (0xFFFF0000)
  95
  96enum {
  97        MLX4_BOARD_ID_LEN = 64
  98};
  99
 100enum {
 101        MLX4_MAX_NUM_PF         = 16,
 102        MLX4_MAX_NUM_VF         = 126,
 103        MLX4_MAX_NUM_VF_P_PORT  = 64,
 104        MLX4_MFUNC_MAX          = 128,
 105        MLX4_MAX_EQ_NUM         = 1024,
 106        MLX4_MFUNC_EQ_NUM       = 4,
 107        MLX4_MFUNC_MAX_EQES     = 8,
 108        MLX4_MFUNC_EQE_MASK     = (MLX4_MFUNC_MAX_EQES - 1)
 109};
 110
 111/* Driver supports 3 different device methods to manage traffic steering:
 112 *      -device managed - High level API for ib and eth flow steering. FW is
 113 *                        managing flow steering tables.
 114 *      - B0 steering mode - Common low level API for ib and (if supported) eth.
 115 *      - A0 steering mode - Limited low level API for eth. In case of IB,
 116 *                           B0 mode is in use.
 117 */
 118enum {
 119        MLX4_STEERING_MODE_A0,
 120        MLX4_STEERING_MODE_B0,
 121        MLX4_STEERING_MODE_DEVICE_MANAGED
 122};
 123
 124enum {
 125        MLX4_STEERING_DMFS_A0_DEFAULT,
 126        MLX4_STEERING_DMFS_A0_DYNAMIC,
 127        MLX4_STEERING_DMFS_A0_STATIC,
 128        MLX4_STEERING_DMFS_A0_DISABLE,
 129        MLX4_STEERING_DMFS_A0_NOT_SUPPORTED
 130};
 131
 132static inline const char *mlx4_steering_mode_str(int steering_mode)
 133{
 134        switch (steering_mode) {
 135        case MLX4_STEERING_MODE_A0:
 136                return "A0 steering";
 137
 138        case MLX4_STEERING_MODE_B0:
 139                return "B0 steering";
 140
 141        case MLX4_STEERING_MODE_DEVICE_MANAGED:
 142                return "Device managed flow steering";
 143
 144        default:
 145                return "Unrecognize steering mode";
 146        }
 147}
 148
 149enum {
 150        MLX4_TUNNEL_OFFLOAD_MODE_NONE,
 151        MLX4_TUNNEL_OFFLOAD_MODE_VXLAN
 152};
 153
 154enum {
 155        MLX4_DEV_CAP_FLAG_RC            = 1LL <<  0,
 156        MLX4_DEV_CAP_FLAG_UC            = 1LL <<  1,
 157        MLX4_DEV_CAP_FLAG_UD            = 1LL <<  2,
 158        MLX4_DEV_CAP_FLAG_XRC           = 1LL <<  3,
 159        MLX4_DEV_CAP_FLAG_SRQ           = 1LL <<  6,
 160        MLX4_DEV_CAP_FLAG_IPOIB_CSUM    = 1LL <<  7,
 161        MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1LL <<  8,
 162        MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1LL <<  9,
 163        MLX4_DEV_CAP_FLAG_DPDP          = 1LL << 12,
 164        MLX4_DEV_CAP_FLAG_BLH           = 1LL << 15,
 165        MLX4_DEV_CAP_FLAG_MEM_WINDOW    = 1LL << 16,
 166        MLX4_DEV_CAP_FLAG_APM           = 1LL << 17,
 167        MLX4_DEV_CAP_FLAG_ATOMIC        = 1LL << 18,
 168        MLX4_DEV_CAP_FLAG_RAW_MCAST     = 1LL << 19,
 169        MLX4_DEV_CAP_FLAG_UD_AV_PORT    = 1LL << 20,
 170        MLX4_DEV_CAP_FLAG_UD_MCAST      = 1LL << 21,
 171        MLX4_DEV_CAP_FLAG_IBOE          = 1LL << 30,
 172        MLX4_DEV_CAP_FLAG_UC_LOOPBACK   = 1LL << 32,
 173        MLX4_DEV_CAP_FLAG_FCS_KEEP      = 1LL << 34,
 174        MLX4_DEV_CAP_FLAG_WOL_PORT1     = 1LL << 37,
 175        MLX4_DEV_CAP_FLAG_WOL_PORT2     = 1LL << 38,
 176        MLX4_DEV_CAP_FLAG_UDP_RSS       = 1LL << 40,
 177        MLX4_DEV_CAP_FLAG_VEP_UC_STEER  = 1LL << 41,
 178        MLX4_DEV_CAP_FLAG_VEP_MC_STEER  = 1LL << 42,
 179        MLX4_DEV_CAP_FLAG_COUNTERS      = 1LL << 48,
 180        MLX4_DEV_CAP_FLAG_RSS_IP_FRAG   = 1LL << 52,
 181        MLX4_DEV_CAP_FLAG_SET_ETH_SCHED = 1LL << 53,
 182        MLX4_DEV_CAP_FLAG_SENSE_SUPPORT = 1LL << 55,
 183        MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV = 1LL << 59,
 184        MLX4_DEV_CAP_FLAG_64B_EQE       = 1LL << 61,
 185        MLX4_DEV_CAP_FLAG_64B_CQE       = 1LL << 62
 186};
 187
 188enum {
 189        MLX4_DEV_CAP_FLAG2_RSS                  = 1LL <<  0,
 190        MLX4_DEV_CAP_FLAG2_RSS_TOP              = 1LL <<  1,
 191        MLX4_DEV_CAP_FLAG2_RSS_XOR              = 1LL <<  2,
 192        MLX4_DEV_CAP_FLAG2_FS_EN                = 1LL <<  3,
 193        MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN      = 1LL <<  4,
 194        MLX4_DEV_CAP_FLAG2_TS                   = 1LL <<  5,
 195        MLX4_DEV_CAP_FLAG2_VLAN_CONTROL         = 1LL <<  6,
 196        MLX4_DEV_CAP_FLAG2_FSM                  = 1LL <<  7,
 197        MLX4_DEV_CAP_FLAG2_UPDATE_QP            = 1LL <<  8,
 198        MLX4_DEV_CAP_FLAG2_DMFS_IPOIB           = 1LL <<  9,
 199        MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS       = 1LL <<  10,
 200        MLX4_DEV_CAP_FLAG2_MAD_DEMUX            = 1LL <<  11,
 201        MLX4_DEV_CAP_FLAG2_CQE_STRIDE           = 1LL <<  12,
 202        MLX4_DEV_CAP_FLAG2_EQE_STRIDE           = 1LL <<  13,
 203        MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL        = 1LL <<  14,
 204        MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP    = 1LL <<  15,
 205        MLX4_DEV_CAP_FLAG2_CONFIG_DEV           = 1LL <<  16,
 206        MLX4_DEV_CAP_FLAG2_SYS_EQS              = 1LL <<  17,
 207        MLX4_DEV_CAP_FLAG2_80_VFS               = 1LL <<  18,
 208        MLX4_DEV_CAP_FLAG2_FS_A0                = 1LL <<  19,
 209        MLX4_DEV_CAP_FLAG2_RECOVERABLE_ERROR_EVENT = 1LL << 20,
 210        MLX4_DEV_CAP_FLAG2_PORT_REMAP           = 1LL <<  21,
 211        MLX4_DEV_CAP_FLAG2_QCN                  = 1LL <<  22,
 212        MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT        = 1LL <<  23,
 213        MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN         = 1LL <<  24,
 214        MLX4_DEV_CAP_FLAG2_QOS_VPP              = 1LL <<  25,
 215        MLX4_DEV_CAP_FLAG2_ETS_CFG              = 1LL <<  26,
 216        MLX4_DEV_CAP_FLAG2_PORT_BEACON          = 1LL <<  27,
 217        MLX4_DEV_CAP_FLAG2_IGNORE_FCS           = 1LL <<  28,
 218        MLX4_DEV_CAP_FLAG2_PHV_EN               = 1LL <<  29,
 219        MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN      = 1LL <<  30,
 220        MLX4_DEV_CAP_FLAG2_UPDATE_QP_SRC_CHECK_LB = 1ULL << 31,
 221        MLX4_DEV_CAP_FLAG2_LB_SRC_CHK           = 1ULL << 32,
 222        MLX4_DEV_CAP_FLAG2_ROCE_V1_V2           = 1ULL <<  33,
 223        MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER   = 1ULL <<  34,
 224        MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT        = 1ULL <<  35,
 225        MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP          = 1ULL <<  36,
 226        MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT = 1ULL << 37,
 227        MLX4_DEV_CAP_FLAG2_USER_MAC_EN          = 1ULL << 38,
 228        MLX4_DEV_CAP_FLAG2_DRIVER_VERSION_TO_FW = 1ULL << 39,
 229        MLX4_DEV_CAP_FLAG2_SW_CQ_INIT           = 1ULL << 40,
 230};
 231
 232enum {
 233        MLX4_QUERY_FUNC_FLAGS_BF_RES_QP         = 1LL << 0,
 234        MLX4_QUERY_FUNC_FLAGS_A0_RES_QP         = 1LL << 1
 235};
 236
 237enum {
 238        MLX4_VF_CAP_FLAG_RESET                  = 1 << 0
 239};
 240
 241/* bit enums for an 8-bit flags field indicating special use
 242 * QPs which require special handling in qp_reserve_range.
 243 * Currently, this only includes QPs used by the ETH interface,
 244 * where we expect to use blueflame.  These QPs must not have
 245 * bits 6 and 7 set in their qp number.
 246 *
 247 * This enum may use only bits 0..7.
 248 */
 249enum {
 250        MLX4_RESERVE_A0_QP      = 1 << 6,
 251        MLX4_RESERVE_ETH_BF_QP  = 1 << 7,
 252};
 253
 254enum {
 255        MLX4_DEV_CAP_64B_EQE_ENABLED    = 1LL << 0,
 256        MLX4_DEV_CAP_64B_CQE_ENABLED    = 1LL << 1,
 257        MLX4_DEV_CAP_CQE_STRIDE_ENABLED = 1LL << 2,
 258        MLX4_DEV_CAP_EQE_STRIDE_ENABLED = 1LL << 3
 259};
 260
 261enum {
 262        MLX4_FUNC_CAP_64B_EQE_CQE       = 1L << 0,
 263        MLX4_FUNC_CAP_EQE_CQE_STRIDE    = 1L << 1,
 264        MLX4_FUNC_CAP_DMFS_A0_STATIC    = 1L << 2
 265};
 266
 267
 268#define MLX4_ATTR_EXTENDED_PORT_INFO    cpu_to_be16(0xff90)
 269
 270enum {
 271        MLX4_BMME_FLAG_WIN_TYPE_2B      = 1 <<  1,
 272        MLX4_BMME_FLAG_LOCAL_INV        = 1 <<  6,
 273        MLX4_BMME_FLAG_REMOTE_INV       = 1 <<  7,
 274        MLX4_BMME_FLAG_TYPE_2_WIN       = 1 <<  9,
 275        MLX4_BMME_FLAG_RESERVED_LKEY    = 1 << 10,
 276        MLX4_BMME_FLAG_FAST_REG_WR      = 1 << 11,
 277        MLX4_BMME_FLAG_ROCE_V1_V2       = 1 << 19,
 278        MLX4_BMME_FLAG_PORT_REMAP       = 1 << 24,
 279        MLX4_BMME_FLAG_VSD_INIT2RTR     = 1 << 28,
 280};
 281
 282enum {
 283        MLX4_FLAG_PORT_REMAP            = MLX4_BMME_FLAG_PORT_REMAP,
 284        MLX4_FLAG_ROCE_V1_V2            = MLX4_BMME_FLAG_ROCE_V1_V2
 285};
 286
 287enum mlx4_event {
 288        MLX4_EVENT_TYPE_COMP               = 0x00,
 289        MLX4_EVENT_TYPE_PATH_MIG           = 0x01,
 290        MLX4_EVENT_TYPE_COMM_EST           = 0x02,
 291        MLX4_EVENT_TYPE_SQ_DRAINED         = 0x03,
 292        MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE    = 0x13,
 293        MLX4_EVENT_TYPE_SRQ_LIMIT          = 0x14,
 294        MLX4_EVENT_TYPE_CQ_ERROR           = 0x04,
 295        MLX4_EVENT_TYPE_WQ_CATAS_ERROR     = 0x05,
 296        MLX4_EVENT_TYPE_EEC_CATAS_ERROR    = 0x06,
 297        MLX4_EVENT_TYPE_PATH_MIG_FAILED    = 0x07,
 298        MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
 299        MLX4_EVENT_TYPE_WQ_ACCESS_ERROR    = 0x11,
 300        MLX4_EVENT_TYPE_SRQ_CATAS_ERROR    = 0x12,
 301        MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR  = 0x08,
 302        MLX4_EVENT_TYPE_PORT_CHANGE        = 0x09,
 303        MLX4_EVENT_TYPE_EQ_OVERFLOW        = 0x0f,
 304        MLX4_EVENT_TYPE_ECC_DETECT         = 0x0e,
 305        MLX4_EVENT_TYPE_CMD                = 0x0a,
 306        MLX4_EVENT_TYPE_VEP_UPDATE         = 0x19,
 307        MLX4_EVENT_TYPE_COMM_CHANNEL       = 0x18,
 308        MLX4_EVENT_TYPE_OP_REQUIRED        = 0x1a,
 309        MLX4_EVENT_TYPE_FATAL_WARNING      = 0x1b,
 310        MLX4_EVENT_TYPE_FLR_EVENT          = 0x1c,
 311        MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT = 0x1d,
 312        MLX4_EVENT_TYPE_RECOVERABLE_ERROR_EVENT  = 0x3e,
 313        MLX4_EVENT_TYPE_NONE               = 0xff,
 314};
 315
 316enum {
 317        MLX4_PORT_CHANGE_SUBTYPE_DOWN   = 1,
 318        MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
 319};
 320
 321enum {
 322        MLX4_RECOVERABLE_ERROR_EVENT_SUBTYPE_BAD_CABLE          = 1,
 323        MLX4_RECOVERABLE_ERROR_EVENT_SUBTYPE_UNSUPPORTED_CABLE  = 2,
 324};
 325
 326enum {
 327        MLX4_FATAL_WARNING_SUBTYPE_WARMING = 0,
 328};
 329
 330enum slave_port_state {
 331        SLAVE_PORT_DOWN = 0,
 332        SLAVE_PENDING_UP,
 333        SLAVE_PORT_UP,
 334};
 335
 336enum slave_port_gen_event {
 337        SLAVE_PORT_GEN_EVENT_DOWN = 0,
 338        SLAVE_PORT_GEN_EVENT_UP,
 339        SLAVE_PORT_GEN_EVENT_NONE,
 340};
 341
 342enum slave_port_state_event {
 343        MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
 344        MLX4_PORT_STATE_DEV_EVENT_PORT_UP,
 345        MLX4_PORT_STATE_IB_PORT_STATE_EVENT_GID_VALID,
 346        MLX4_PORT_STATE_IB_EVENT_GID_INVALID,
 347};
 348
 349enum {
 350        MLX4_PERM_LOCAL_READ    = 1 << 10,
 351        MLX4_PERM_LOCAL_WRITE   = 1 << 11,
 352        MLX4_PERM_REMOTE_READ   = 1 << 12,
 353        MLX4_PERM_REMOTE_WRITE  = 1 << 13,
 354        MLX4_PERM_ATOMIC        = 1 << 14,
 355        MLX4_PERM_BIND_MW       = 1 << 15,
 356        MLX4_PERM_MASK          = 0xFC00
 357};
 358
 359enum {
 360        MLX4_OPCODE_NOP                 = 0x00,
 361        MLX4_OPCODE_SEND_INVAL          = 0x01,
 362        MLX4_OPCODE_RDMA_WRITE          = 0x08,
 363        MLX4_OPCODE_RDMA_WRITE_IMM      = 0x09,
 364        MLX4_OPCODE_SEND                = 0x0a,
 365        MLX4_OPCODE_SEND_IMM            = 0x0b,
 366        MLX4_OPCODE_LSO                 = 0x0e,
 367        MLX4_OPCODE_RDMA_READ           = 0x10,
 368        MLX4_OPCODE_ATOMIC_CS           = 0x11,
 369        MLX4_OPCODE_ATOMIC_FA           = 0x12,
 370        MLX4_OPCODE_MASKED_ATOMIC_CS    = 0x14,
 371        MLX4_OPCODE_MASKED_ATOMIC_FA    = 0x15,
 372        MLX4_OPCODE_BIND_MW             = 0x18,
 373        MLX4_OPCODE_FMR                 = 0x19,
 374        MLX4_OPCODE_LOCAL_INVAL         = 0x1b,
 375        MLX4_OPCODE_CONFIG_CMD          = 0x1f,
 376
 377        MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
 378        MLX4_RECV_OPCODE_SEND           = 0x01,
 379        MLX4_RECV_OPCODE_SEND_IMM       = 0x02,
 380        MLX4_RECV_OPCODE_SEND_INVAL     = 0x03,
 381
 382        MLX4_CQE_OPCODE_ERROR           = 0x1e,
 383        MLX4_CQE_OPCODE_RESIZE          = 0x16,
 384};
 385
 386enum {
 387        MLX4_STAT_RATE_OFFSET   = 5
 388};
 389
 390enum mlx4_protocol {
 391        MLX4_PROT_IB_IPV6 = 0,
 392        MLX4_PROT_ETH,
 393        MLX4_PROT_IB_IPV4,
 394        MLX4_PROT_FCOE
 395};
 396
 397enum {
 398        MLX4_MTT_FLAG_PRESENT           = 1
 399};
 400
 401enum mlx4_qp_region {
 402        MLX4_QP_REGION_FW = 0,
 403        MLX4_QP_REGION_RSS_RAW_ETH,
 404        MLX4_QP_REGION_BOTTOM = MLX4_QP_REGION_RSS_RAW_ETH,
 405        MLX4_QP_REGION_ETH_ADDR,
 406        MLX4_QP_REGION_FC_ADDR,
 407        MLX4_QP_REGION_FC_EXCH,
 408        MLX4_NUM_QP_REGION
 409};
 410
 411enum mlx4_port_type {
 412        MLX4_PORT_TYPE_NONE     = 0,
 413        MLX4_PORT_TYPE_IB       = 1,
 414        MLX4_PORT_TYPE_ETH      = 2,
 415        MLX4_PORT_TYPE_AUTO     = 3
 416};
 417
 418enum mlx4_special_vlan_idx {
 419        MLX4_NO_VLAN_IDX        = 0,
 420        MLX4_VLAN_MISS_IDX,
 421        MLX4_VLAN_REGULAR
 422};
 423
 424enum mlx4_steer_type {
 425        MLX4_MC_STEER = 0,
 426        MLX4_UC_STEER,
 427        MLX4_NUM_STEERS
 428};
 429
 430enum mlx4_resource_usage {
 431        MLX4_RES_USAGE_NONE,
 432        MLX4_RES_USAGE_DRIVER,
 433        MLX4_RES_USAGE_USER_VERBS,
 434};
 435
 436enum {
 437        MLX4_NUM_FEXCH          = 64 * 1024,
 438};
 439
 440enum {
 441        MLX4_MAX_FAST_REG_PAGES = 511,
 442};
 443
 444enum {
 445        /*
 446         * Max wqe size for rdma read is 512 bytes, so this
 447         * limits our max_sge_rd as the wqe needs to fit:
 448         * - ctrl segment (16 bytes)
 449         * - rdma segment (16 bytes)
 450         * - scatter elements (16 bytes each)
 451         */
 452        MLX4_MAX_SGE_RD = (512 - 16 - 16) / 16
 453};
 454
 455enum {
 456        MLX4_DEV_PMC_SUBTYPE_GUID_INFO   = 0x14,
 457        MLX4_DEV_PMC_SUBTYPE_PORT_INFO   = 0x15,
 458        MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE  = 0x16,
 459        MLX4_DEV_PMC_SUBTYPE_SL_TO_VL_MAP = 0x17,
 460};
 461
 462/* Port mgmt change event handling */
 463enum {
 464        MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK       = 1 << 0,
 465        MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK           = 1 << 1,
 466        MLX4_EQ_PORT_INFO_LID_CHANGE_MASK               = 1 << 2,
 467        MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK             = 1 << 3,
 468        MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK        = 1 << 4,
 469};
 470
 471union sl2vl_tbl_to_u64 {
 472        u8      sl8[8];
 473        u64     sl64;
 474};
 475
 476enum {
 477        MLX4_DEVICE_STATE_UP                    = 1 << 0,
 478        MLX4_DEVICE_STATE_INTERNAL_ERROR        = 1 << 1,
 479};
 480
 481enum {
 482        MLX4_INTERFACE_STATE_UP         = 1 << 0,
 483        MLX4_INTERFACE_STATE_DELETION   = 1 << 1,
 484        MLX4_INTERFACE_STATE_NOWAIT     = 1 << 2,
 485};
 486
 487#define MSTR_SM_CHANGE_MASK (MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK | \
 488                             MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK)
 489
 490enum mlx4_module_id {
 491        MLX4_MODULE_ID_SFP              = 0x3,
 492        MLX4_MODULE_ID_QSFP             = 0xC,
 493        MLX4_MODULE_ID_QSFP_PLUS        = 0xD,
 494        MLX4_MODULE_ID_QSFP28           = 0x11,
 495};
 496
 497enum { /* rl */
 498        MLX4_QP_RATE_LIMIT_NONE         = 0,
 499        MLX4_QP_RATE_LIMIT_KBS          = 1,
 500        MLX4_QP_RATE_LIMIT_MBS          = 2,
 501        MLX4_QP_RATE_LIMIT_GBS          = 3
 502};
 503
 504struct mlx4_rate_limit_caps {
 505        u16     num_rates; /* Number of different rates */
 506        u8      min_unit;
 507        u16     min_val;
 508        u8      max_unit;
 509        u16     max_val;
 510};
 511
 512static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
 513{
 514        return (major << 32) | (minor << 16) | subminor;
 515}
 516
 517struct mlx4_phys_caps {
 518        u32                     gid_phys_table_len[MLX4_MAX_PORTS + 1];
 519        u32                     pkey_phys_table_len[MLX4_MAX_PORTS + 1];
 520        u32                     num_phys_eqs;
 521        u32                     base_sqpn;
 522        u32                     base_proxy_sqpn;
 523        u32                     base_tunnel_sqpn;
 524};
 525
 526struct mlx4_spec_qps {
 527        u32 qp0_qkey;
 528        u32 qp0_proxy;
 529        u32 qp0_tunnel;
 530        u32 qp1_proxy;
 531        u32 qp1_tunnel;
 532};
 533
 534struct mlx4_caps {
 535        u64                     fw_ver;
 536        u32                     function;
 537        int                     num_ports;
 538        int                     vl_cap[MLX4_MAX_PORTS + 1];
 539        int                     ib_mtu_cap[MLX4_MAX_PORTS + 1];
 540        __be32                  ib_port_def_cap[MLX4_MAX_PORTS + 1];
 541        u64                     def_mac[MLX4_MAX_PORTS + 1];
 542        int                     eth_mtu_cap[MLX4_MAX_PORTS + 1];
 543        int                     gid_table_len[MLX4_MAX_PORTS + 1];
 544        int                     pkey_table_len[MLX4_MAX_PORTS + 1];
 545        int                     trans_type[MLX4_MAX_PORTS + 1];
 546        int                     vendor_oui[MLX4_MAX_PORTS + 1];
 547        int                     wavelength[MLX4_MAX_PORTS + 1];
 548        u64                     trans_code[MLX4_MAX_PORTS + 1];
 549        int                     local_ca_ack_delay;
 550        int                     num_uars;
 551        u32                     uar_page_size;
 552        int                     bf_reg_size;
 553        int                     bf_regs_per_page;
 554        int                     max_sq_sg;
 555        int                     max_rq_sg;
 556        int                     num_qps;
 557        int                     max_wqes;
 558        int                     max_sq_desc_sz;
 559        int                     max_rq_desc_sz;
 560        int                     max_qp_init_rdma;
 561        int                     max_qp_dest_rdma;
 562        int                     max_tc_eth;
 563        struct mlx4_spec_qps   *spec_qps;
 564        int                     num_srqs;
 565        int                     max_srq_wqes;
 566        int                     max_srq_sge;
 567        int                     reserved_srqs;
 568        int                     num_cqs;
 569        int                     max_cqes;
 570        int                     reserved_cqs;
 571        int                     num_sys_eqs;
 572        int                     num_eqs;
 573        int                     reserved_eqs;
 574        int                     num_comp_vectors;
 575        int                     num_mpts;
 576        int                     max_fmr_maps;
 577        int                     num_mtts;
 578        int                     fmr_reserved_mtts;
 579        int                     reserved_mtts;
 580        int                     reserved_mrws;
 581        int                     reserved_uars;
 582        int                     num_mgms;
 583        int                     num_amgms;
 584        int                     reserved_mcgs;
 585        int                     num_qp_per_mgm;
 586        int                     steering_mode;
 587        int                     dmfs_high_steer_mode;
 588        int                     fs_log_max_ucast_qp_range_size;
 589        int                     num_pds;
 590        int                     reserved_pds;
 591        int                     max_xrcds;
 592        int                     reserved_xrcds;
 593        int                     mtt_entry_sz;
 594        u32                     max_msg_sz;
 595        u32                     page_size_cap;
 596        u64                     flags;
 597        u64                     flags2;
 598        u32                     bmme_flags;
 599        u32                     reserved_lkey;
 600        u16                     stat_rate_support;
 601        u8                      port_width_cap[MLX4_MAX_PORTS + 1];
 602        int                     max_gso_sz;
 603        int                     max_rss_tbl_sz;
 604        int                     reserved_qps_cnt[MLX4_NUM_QP_REGION];
 605        int                     reserved_qps;
 606        int                     reserved_qps_base[MLX4_NUM_QP_REGION];
 607        int                     log_num_macs;
 608        int                     log_num_vlans;
 609        enum mlx4_port_type     port_type[MLX4_MAX_PORTS + 1];
 610        u8                      supported_type[MLX4_MAX_PORTS + 1];
 611        u8                      suggested_type[MLX4_MAX_PORTS + 1];
 612        u8                      default_sense[MLX4_MAX_PORTS + 1];
 613        u32                     port_mask[MLX4_MAX_PORTS + 1];
 614        enum mlx4_port_type     possible_type[MLX4_MAX_PORTS + 1];
 615        u32                     max_counters;
 616        u8                      port_ib_mtu[MLX4_MAX_PORTS + 1];
 617        u16                     sqp_demux;
 618        u32                     eqe_size;
 619        u32                     cqe_size;
 620        u8                      eqe_factor;
 621        u32                     userspace_caps; /* userspace must be aware of these */
 622        u32                     function_caps;  /* VFs must be aware of these */
 623        u16                     hca_core_clock;
 624        u64                     phys_port_id[MLX4_MAX_PORTS + 1];
 625        int                     tunnel_offload_mode;
 626        u8                      rx_checksum_flags_port[MLX4_MAX_PORTS + 1];
 627        u8                      phv_bit[MLX4_MAX_PORTS + 1];
 628        u8                      alloc_res_qp_mask;
 629        u32                     dmfs_high_rate_qpn_base;
 630        u32                     dmfs_high_rate_qpn_range;
 631        u32                     vf_caps;
 632        bool                    wol_port[MLX4_MAX_PORTS + 1];
 633        struct mlx4_rate_limit_caps rl_caps;
 634        u32                     health_buffer_addrs;
 635};
 636
 637struct mlx4_buf_list {
 638        void                   *buf;
 639        dma_addr_t              map;
 640};
 641
 642struct mlx4_buf {
 643        struct mlx4_buf_list    direct;
 644        struct mlx4_buf_list   *page_list;
 645        int                     nbufs;
 646        int                     npages;
 647        int                     page_shift;
 648};
 649
 650struct mlx4_mtt {
 651        u32                     offset;
 652        int                     order;
 653        int                     page_shift;
 654};
 655
 656enum {
 657        MLX4_DB_PER_PAGE = PAGE_SIZE / 4
 658};
 659
 660struct mlx4_db_pgdir {
 661        struct list_head        list;
 662        DECLARE_BITMAP(order0, MLX4_DB_PER_PAGE);
 663        DECLARE_BITMAP(order1, MLX4_DB_PER_PAGE / 2);
 664        unsigned long          *bits[2];
 665        __be32                 *db_page;
 666        dma_addr_t              db_dma;
 667};
 668
 669struct mlx4_ib_user_db_page;
 670
 671struct mlx4_db {
 672        __be32                  *db;
 673        union {
 674                struct mlx4_db_pgdir            *pgdir;
 675                struct mlx4_ib_user_db_page     *user_page;
 676        }                       u;
 677        dma_addr_t              dma;
 678        int                     index;
 679        int                     order;
 680};
 681
 682struct mlx4_hwq_resources {
 683        struct mlx4_db          db;
 684        struct mlx4_mtt         mtt;
 685        struct mlx4_buf         buf;
 686};
 687
 688struct mlx4_mr {
 689        struct mlx4_mtt         mtt;
 690        u64                     iova;
 691        u64                     size;
 692        u32                     key;
 693        u32                     pd;
 694        u32                     access;
 695        int                     enabled;
 696};
 697
 698enum mlx4_mw_type {
 699        MLX4_MW_TYPE_1 = 1,
 700        MLX4_MW_TYPE_2 = 2,
 701};
 702
 703struct mlx4_mw {
 704        u32                     key;
 705        u32                     pd;
 706        enum mlx4_mw_type       type;
 707        int                     enabled;
 708};
 709
 710struct mlx4_fmr {
 711        struct mlx4_mr          mr;
 712        struct mlx4_mpt_entry  *mpt;
 713        __be64                 *mtts;
 714        dma_addr_t              dma_handle;
 715        int                     max_pages;
 716        int                     max_maps;
 717        int                     maps;
 718        u8                      page_shift;
 719};
 720
 721struct mlx4_uar {
 722        unsigned long           pfn;
 723        int                     index;
 724        struct list_head        bf_list;
 725        unsigned                free_bf_bmap;
 726        void __iomem           *map;
 727        void __iomem           *bf_map;
 728};
 729
 730struct mlx4_bf {
 731        unsigned int            offset;
 732        int                     buf_size;
 733        struct mlx4_uar        *uar;
 734        void __iomem           *reg;
 735};
 736
 737struct mlx4_cq {
 738        void (*comp)            (struct mlx4_cq *);
 739        void (*event)           (struct mlx4_cq *, enum mlx4_event);
 740
 741        struct mlx4_uar        *uar;
 742
 743        u32                     cons_index;
 744
 745        u16                     irq;
 746        __be32                 *set_ci_db;
 747        __be32                 *arm_db;
 748        int                     arm_sn;
 749
 750        int                     cqn;
 751        unsigned                vector;
 752
 753        refcount_t              refcount;
 754        struct completion       free;
 755        struct {
 756                struct list_head list;
 757                void (*comp)(struct mlx4_cq *);
 758                void            *priv;
 759        } tasklet_ctx;
 760        int             reset_notify_added;
 761        struct list_head        reset_notify;
 762        u8                      usage;
 763};
 764
 765struct mlx4_qp {
 766        void (*event)           (struct mlx4_qp *, enum mlx4_event);
 767
 768        int                     qpn;
 769
 770        refcount_t              refcount;
 771        struct completion       free;
 772        u8                      usage;
 773};
 774
 775struct mlx4_srq {
 776        void (*event)           (struct mlx4_srq *, enum mlx4_event);
 777
 778        int                     srqn;
 779        int                     max;
 780        int                     max_gs;
 781        int                     wqe_shift;
 782
 783        refcount_t              refcount;
 784        struct completion       free;
 785};
 786
 787struct mlx4_av {
 788        __be32                  port_pd;
 789        u8                      reserved1;
 790        u8                      g_slid;
 791        __be16                  dlid;
 792        u8                      reserved2;
 793        u8                      gid_index;
 794        u8                      stat_rate;
 795        u8                      hop_limit;
 796        __be32                  sl_tclass_flowlabel;
 797        u8                      dgid[16];
 798};
 799
 800struct mlx4_eth_av {
 801        __be32          port_pd;
 802        u8              reserved1;
 803        u8              smac_idx;
 804        u16             reserved2;
 805        u8              reserved3;
 806        u8              gid_index;
 807        u8              stat_rate;
 808        u8              hop_limit;
 809        __be32          sl_tclass_flowlabel;
 810        u8              dgid[16];
 811        u8              s_mac[6];
 812        u8              reserved4[2];
 813        __be16          vlan;
 814        u8              mac[ETH_ALEN];
 815};
 816
 817union mlx4_ext_av {
 818        struct mlx4_av          ib;
 819        struct mlx4_eth_av      eth;
 820};
 821
 822/* Counters should be saturate once they reach their maximum value */
 823#define ASSIGN_32BIT_COUNTER(counter, value) do {       \
 824        if ((value) > U32_MAX)                          \
 825                counter = cpu_to_be32(U32_MAX);         \
 826        else                                            \
 827                counter = cpu_to_be32(value);           \
 828} while (0)
 829
 830struct mlx4_counter {
 831        u8      reserved1[3];
 832        u8      counter_mode;
 833        __be32  num_ifc;
 834        u32     reserved2[2];
 835        __be64  rx_frames;
 836        __be64  rx_bytes;
 837        __be64  tx_frames;
 838        __be64  tx_bytes;
 839};
 840
 841struct mlx4_quotas {
 842        int qp;
 843        int cq;
 844        int srq;
 845        int mpt;
 846        int mtt;
 847        int counter;
 848        int xrcd;
 849};
 850
 851struct mlx4_vf_dev {
 852        u8                      min_port;
 853        u8                      n_ports;
 854};
 855
 856struct mlx4_fw_crdump {
 857        bool snapshot_enable;
 858        struct devlink_region *region_crspace;
 859        struct devlink_region *region_fw_health;
 860};
 861
 862enum mlx4_pci_status {
 863        MLX4_PCI_STATUS_DISABLED,
 864        MLX4_PCI_STATUS_ENABLED,
 865};
 866
 867struct mlx4_dev_persistent {
 868        struct pci_dev         *pdev;
 869        struct mlx4_dev        *dev;
 870        int                     nvfs[MLX4_MAX_PORTS + 1];
 871        int                     num_vfs;
 872        enum mlx4_port_type curr_port_type[MLX4_MAX_PORTS + 1];
 873        enum mlx4_port_type curr_port_poss_type[MLX4_MAX_PORTS + 1];
 874        struct work_struct      catas_work;
 875        struct workqueue_struct *catas_wq;
 876        struct mutex    device_state_mutex; /* protect HW state */
 877        u8              state;
 878        struct mutex    interface_state_mutex; /* protect SW state */
 879        u8      interface_state;
 880        struct mutex            pci_status_mutex; /* sync pci state */
 881        enum mlx4_pci_status    pci_status;
 882        struct mlx4_fw_crdump   crdump;
 883};
 884
 885struct mlx4_dev {
 886        struct mlx4_dev_persistent *persist;
 887        unsigned long           flags;
 888        unsigned long           num_slaves;
 889        struct mlx4_caps        caps;
 890        struct mlx4_phys_caps   phys_caps;
 891        struct mlx4_quotas      quotas;
 892        struct radix_tree_root  qp_table_tree;
 893        u8                      rev_id;
 894        u8                      port_random_macs;
 895        char                    board_id[MLX4_BOARD_ID_LEN];
 896        int                     numa_node;
 897        int                     oper_log_mgm_entry_size;
 898        u64                     regid_promisc_array[MLX4_MAX_PORTS + 1];
 899        u64                     regid_allmulti_array[MLX4_MAX_PORTS + 1];
 900        struct mlx4_vf_dev     *dev_vfs;
 901        u8  uar_page_shift;
 902};
 903
 904struct mlx4_clock_params {
 905        u64 offset;
 906        u8 bar;
 907        u8 size;
 908};
 909
 910struct mlx4_eqe {
 911        u8                      reserved1;
 912        u8                      type;
 913        u8                      reserved2;
 914        u8                      subtype;
 915        union {
 916                u32             raw[6];
 917                struct {
 918                        __be32  cqn;
 919                } __packed comp;
 920                struct {
 921                        u16     reserved1;
 922                        __be16  token;
 923                        u32     reserved2;
 924                        u8      reserved3[3];
 925                        u8      status;
 926                        __be64  out_param;
 927                } __packed cmd;
 928                struct {
 929                        __be32  qpn;
 930                } __packed qp;
 931                struct {
 932                        __be32  srqn;
 933                } __packed srq;
 934                struct {
 935                        __be32  cqn;
 936                        u32     reserved1;
 937                        u8      reserved2[3];
 938                        u8      syndrome;
 939                } __packed cq_err;
 940                struct {
 941                        u32     reserved1[2];
 942                        __be32  port;
 943                } __packed port_change;
 944                struct {
 945                        #define COMM_CHANNEL_BIT_ARRAY_SIZE     4
 946                        u32 reserved;
 947                        u32 bit_vec[COMM_CHANNEL_BIT_ARRAY_SIZE];
 948                } __packed comm_channel_arm;
 949                struct {
 950                        u8      port;
 951                        u8      reserved[3];
 952                        __be64  mac;
 953                } __packed mac_update;
 954                struct {
 955                        __be32  slave_id;
 956                } __packed flr_event;
 957                struct {
 958                        __be16  current_temperature;
 959                        __be16  warning_threshold;
 960                } __packed warming;
 961                struct {
 962                        u8 reserved[3];
 963                        u8 port;
 964                        union {
 965                                struct {
 966                                        __be16 mstr_sm_lid;
 967                                        __be16 port_lid;
 968                                        __be32 changed_attr;
 969                                        u8 reserved[3];
 970                                        u8 mstr_sm_sl;
 971                                        __be64 gid_prefix;
 972                                } __packed port_info;
 973                                struct {
 974                                        __be32 block_ptr;
 975                                        __be32 tbl_entries_mask;
 976                                } __packed tbl_change_info;
 977                                struct {
 978                                        u8 sl2vl_table[8];
 979                                } __packed sl2vl_tbl_change_info;
 980                        } params;
 981                } __packed port_mgmt_change;
 982                struct {
 983                        u8 reserved[3];
 984                        u8 port;
 985                        u32 reserved1[5];
 986                } __packed bad_cable;
 987        }                       event;
 988        u8                      slave_id;
 989        u8                      reserved3[2];
 990        u8                      owner;
 991} __packed;
 992
 993struct mlx4_init_port_param {
 994        int                     set_guid0;
 995        int                     set_node_guid;
 996        int                     set_si_guid;
 997        u16                     mtu;
 998        int                     port_width_cap;
 999        u16                     vl_cap;
1000        u16                     max_gid;
1001        u16                     max_pkey;
1002        u64                     guid0;
1003        u64                     node_guid;
1004        u64                     si_guid;
1005};
1006
1007#define MAD_IFC_DATA_SZ 192
1008/* MAD IFC Mailbox */
1009struct mlx4_mad_ifc {
1010        u8      base_version;
1011        u8      mgmt_class;
1012        u8      class_version;
1013        u8      method;
1014        __be16  status;
1015        __be16  class_specific;
1016        __be64  tid;
1017        __be16  attr_id;
1018        __be16  resv;
1019        __be32  attr_mod;
1020        __be64  mkey;
1021        __be16  dr_slid;
1022        __be16  dr_dlid;
1023        u8      reserved[28];
1024        u8      data[MAD_IFC_DATA_SZ];
1025} __packed;
1026
1027#define mlx4_foreach_port(port, dev, type)                              \
1028        for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)     \
1029                if ((type) == (dev)->caps.port_mask[(port)])
1030
1031#define mlx4_foreach_ib_transport_port(port, dev)                         \
1032        for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++)       \
1033                if (((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_IB) || \
1034                    ((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_ETH))
1035
1036#define MLX4_INVALID_SLAVE_ID   0xFF
1037#define MLX4_SINK_COUNTER_INDEX(dev)    (dev->caps.max_counters - 1)
1038
1039void handle_port_mgmt_change_event(struct work_struct *work);
1040
1041static inline int mlx4_master_func_num(struct mlx4_dev *dev)
1042{
1043        return dev->caps.function;
1044}
1045
1046static inline int mlx4_is_master(struct mlx4_dev *dev)
1047{
1048        return dev->flags & MLX4_FLAG_MASTER;
1049}
1050
1051static inline int mlx4_num_reserved_sqps(struct mlx4_dev *dev)
1052{
1053        return dev->phys_caps.base_sqpn + 8 +
1054                16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev);
1055}
1056
1057static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
1058{
1059        return (qpn < dev->phys_caps.base_sqpn + 8 +
1060                16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev) &&
1061                qpn >= dev->phys_caps.base_sqpn) ||
1062               (qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]);
1063}
1064
1065static inline int mlx4_is_guest_proxy(struct mlx4_dev *dev, int slave, u32 qpn)
1066{
1067        int guest_proxy_base = dev->phys_caps.base_proxy_sqpn + slave * 8;
1068
1069        if (qpn >= guest_proxy_base && qpn < guest_proxy_base + 8)
1070                return 1;
1071
1072        return 0;
1073}
1074
1075static inline int mlx4_is_mfunc(struct mlx4_dev *dev)
1076{
1077        return dev->flags & (MLX4_FLAG_SLAVE | MLX4_FLAG_MASTER);
1078}
1079
1080static inline int mlx4_is_slave(struct mlx4_dev *dev)
1081{
1082        return dev->flags & MLX4_FLAG_SLAVE;
1083}
1084
1085static inline int mlx4_is_eth(struct mlx4_dev *dev, int port)
1086{
1087        return dev->caps.port_type[port] == MLX4_PORT_TYPE_IB ? 0 : 1;
1088}
1089
1090int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
1091                   struct mlx4_buf *buf);
1092void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
1093static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
1094{
1095        if (buf->nbufs == 1)
1096                return buf->direct.buf + offset;
1097        else
1098                return buf->page_list[offset >> PAGE_SHIFT].buf +
1099                        (offset & (PAGE_SIZE - 1));
1100}
1101
1102int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
1103void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);
1104int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn);
1105void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn);
1106
1107int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
1108void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
1109int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf, int node);
1110void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf);
1111
1112int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
1113                  struct mlx4_mtt *mtt);
1114void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
1115u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
1116
1117int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
1118                  int npages, int page_shift, struct mlx4_mr *mr);
1119int mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
1120int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
1121int mlx4_mw_alloc(struct mlx4_dev *dev, u32 pd, enum mlx4_mw_type type,
1122                  struct mlx4_mw *mw);
1123void mlx4_mw_free(struct mlx4_dev *dev, struct mlx4_mw *mw);
1124int mlx4_mw_enable(struct mlx4_dev *dev, struct mlx4_mw *mw);
1125int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
1126                   int start_index, int npages, u64 *page_list);
1127int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
1128                       struct mlx4_buf *buf);
1129
1130int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order);
1131void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db);
1132
1133int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
1134                       int size);
1135void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct mlx4_hwq_resources *wqres,
1136                       int size);
1137
1138int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
1139                  struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq,
1140                  unsigned int vector, int collapsed, int timestamp_en,
1141                  void *buf_addr, bool user_cq);
1142void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);
1143int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align,
1144                          int *base, u8 flags, u8 usage);
1145void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
1146
1147int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
1148void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
1149
1150int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcdn,
1151                   struct mlx4_mtt *mtt, u64 db_rec, struct mlx4_srq *srq);
1152void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
1153int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
1154int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);
1155
1156int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
1157int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
1158
1159int mlx4_unicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
1160                        int block_mcast_loopback, enum mlx4_protocol prot);
1161int mlx4_unicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
1162                        enum mlx4_protocol prot);
1163int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
1164                          u8 port, int block_mcast_loopback,
1165                          enum mlx4_protocol protocol, u64 *reg_id);
1166int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
1167                          enum mlx4_protocol protocol, u64 reg_id);
1168
1169enum {
1170        MLX4_DOMAIN_UVERBS      = 0x1000,
1171        MLX4_DOMAIN_ETHTOOL     = 0x2000,
1172        MLX4_DOMAIN_RFS         = 0x3000,
1173        MLX4_DOMAIN_NIC    = 0x5000,
1174};
1175
1176enum mlx4_net_trans_rule_id {
1177        MLX4_NET_TRANS_RULE_ID_ETH = 0,
1178        MLX4_NET_TRANS_RULE_ID_IB,
1179        MLX4_NET_TRANS_RULE_ID_IPV6,
1180        MLX4_NET_TRANS_RULE_ID_IPV4,
1181        MLX4_NET_TRANS_RULE_ID_TCP,
1182        MLX4_NET_TRANS_RULE_ID_UDP,
1183        MLX4_NET_TRANS_RULE_ID_VXLAN,
1184        MLX4_NET_TRANS_RULE_NUM, /* should be last */
1185};
1186
1187extern const u16 __sw_id_hw[];
1188
1189static inline int map_hw_to_sw_id(u16 header_id)
1190{
1191
1192        int i;
1193        for (i = 0; i < MLX4_NET_TRANS_RULE_NUM; i++) {
1194                if (header_id == __sw_id_hw[i])
1195                        return i;
1196        }
1197        return -EINVAL;
1198}
1199
1200enum mlx4_net_trans_promisc_mode {
1201        MLX4_FS_REGULAR = 1,
1202        MLX4_FS_ALL_DEFAULT,
1203        MLX4_FS_MC_DEFAULT,
1204        MLX4_FS_MIRROR_RX_PORT,
1205        MLX4_FS_MIRROR_SX_PORT,
1206        MLX4_FS_UC_SNIFFER,
1207        MLX4_FS_MC_SNIFFER,
1208        MLX4_FS_MODE_NUM, /* should be last */
1209};
1210
1211struct mlx4_spec_eth {
1212        u8      dst_mac[ETH_ALEN];
1213        u8      dst_mac_msk[ETH_ALEN];
1214        u8      src_mac[ETH_ALEN];
1215        u8      src_mac_msk[ETH_ALEN];
1216        u8      ether_type_enable;
1217        __be16  ether_type;
1218        __be16  vlan_id_msk;
1219        __be16  vlan_id;
1220};
1221
1222struct mlx4_spec_tcp_udp {
1223        __be16 dst_port;
1224        __be16 dst_port_msk;
1225        __be16 src_port;
1226        __be16 src_port_msk;
1227};
1228
1229struct mlx4_spec_ipv4 {
1230        __be32 dst_ip;
1231        __be32 dst_ip_msk;
1232        __be32 src_ip;
1233        __be32 src_ip_msk;
1234};
1235
1236struct mlx4_spec_ib {
1237        __be32  l3_qpn;
1238        __be32  qpn_msk;
1239        u8      dst_gid[16];
1240        u8      dst_gid_msk[16];
1241};
1242
1243struct mlx4_spec_vxlan {
1244        __be32 vni;
1245        __be32 vni_mask;
1246
1247};
1248
1249struct mlx4_spec_list {
1250        struct  list_head list;
1251        enum    mlx4_net_trans_rule_id id;
1252        union {
1253                struct mlx4_spec_eth eth;
1254                struct mlx4_spec_ib ib;
1255                struct mlx4_spec_ipv4 ipv4;
1256                struct mlx4_spec_tcp_udp tcp_udp;
1257                struct mlx4_spec_vxlan vxlan;
1258        };
1259};
1260
1261enum mlx4_net_trans_hw_rule_queue {
1262        MLX4_NET_TRANS_Q_FIFO,
1263        MLX4_NET_TRANS_Q_LIFO,
1264};
1265
1266struct mlx4_net_trans_rule {
1267        struct  list_head list;
1268        enum    mlx4_net_trans_hw_rule_queue queue_mode;
1269        bool    exclusive;
1270        bool    allow_loopback;
1271        enum    mlx4_net_trans_promisc_mode promisc_mode;
1272        u8      port;
1273        u16     priority;
1274        u32     qpn;
1275};
1276
1277struct mlx4_net_trans_rule_hw_ctrl {
1278        __be16 prio;
1279        u8 type;
1280        u8 flags;
1281        u8 rsvd1;
1282        u8 funcid;
1283        u8 vep;
1284        u8 port;
1285        __be32 qpn;
1286        __be32 rsvd2;
1287};
1288
1289struct mlx4_net_trans_rule_hw_ib {
1290        u8 size;
1291        u8 rsvd1;
1292        __be16 id;
1293        u32 rsvd2;
1294        __be32 l3_qpn;
1295        __be32 qpn_mask;
1296        u8 dst_gid[16];
1297        u8 dst_gid_msk[16];
1298} __packed;
1299
1300struct mlx4_net_trans_rule_hw_eth {
1301        u8      size;
1302        u8      rsvd;
1303        __be16  id;
1304        u8      rsvd1[6];
1305        u8      dst_mac[6];
1306        u16     rsvd2;
1307        u8      dst_mac_msk[6];
1308        u16     rsvd3;
1309        u8      src_mac[6];
1310        u16     rsvd4;
1311        u8      src_mac_msk[6];
1312        u8      rsvd5;
1313        u8      ether_type_enable;
1314        __be16  ether_type;
1315        __be16  vlan_tag_msk;
1316        __be16  vlan_tag;
1317} __packed;
1318
1319struct mlx4_net_trans_rule_hw_tcp_udp {
1320        u8      size;
1321        u8      rsvd;
1322        __be16  id;
1323        __be16  rsvd1[3];
1324        __be16  dst_port;
1325        __be16  rsvd2;
1326        __be16  dst_port_msk;
1327        __be16  rsvd3;
1328        __be16  src_port;
1329        __be16  rsvd4;
1330        __be16  src_port_msk;
1331} __packed;
1332
1333struct mlx4_net_trans_rule_hw_ipv4 {
1334        u8      size;
1335        u8      rsvd;
1336        __be16  id;
1337        __be32  rsvd1;
1338        __be32  dst_ip;
1339        __be32  dst_ip_msk;
1340        __be32  src_ip;
1341        __be32  src_ip_msk;
1342} __packed;
1343
1344struct mlx4_net_trans_rule_hw_vxlan {
1345        u8      size;
1346        u8      rsvd;
1347        __be16  id;
1348        __be32  rsvd1;
1349        __be32  vni;
1350        __be32  vni_mask;
1351} __packed;
1352
1353struct _rule_hw {
1354        union {
1355                struct {
1356                        u8 size;
1357                        u8 rsvd;
1358                        __be16 id;
1359                };
1360                struct mlx4_net_trans_rule_hw_eth eth;
1361                struct mlx4_net_trans_rule_hw_ib ib;
1362                struct mlx4_net_trans_rule_hw_ipv4 ipv4;
1363                struct mlx4_net_trans_rule_hw_tcp_udp tcp_udp;
1364                struct mlx4_net_trans_rule_hw_vxlan vxlan;
1365        };
1366};
1367
1368enum {
1369        VXLAN_STEER_BY_OUTER_MAC        = 1 << 0,
1370        VXLAN_STEER_BY_OUTER_VLAN       = 1 << 1,
1371        VXLAN_STEER_BY_VSID_VNI         = 1 << 2,
1372        VXLAN_STEER_BY_INNER_MAC        = 1 << 3,
1373        VXLAN_STEER_BY_INNER_VLAN       = 1 << 4,
1374};
1375
1376enum {
1377        MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS = 0x2,
1378};
1379
1380int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port, u32 qpn,
1381                                enum mlx4_net_trans_promisc_mode mode);
1382int mlx4_flow_steer_promisc_remove(struct mlx4_dev *dev, u8 port,
1383                                   enum mlx4_net_trans_promisc_mode mode);
1384int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
1385int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
1386int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port);
1387int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port);
1388int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
1389
1390int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac);
1391void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac);
1392int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port);
1393int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac);
1394int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
1395                          u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
1396int mlx4_SET_PORT_user_mac(struct mlx4_dev *dev, u8 port, u8 *user_mac);
1397int mlx4_SET_PORT_user_mtu(struct mlx4_dev *dev, u8 port, u16 user_mtu);
1398int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
1399                           u8 promisc);
1400int mlx4_SET_PORT_BEACON(struct mlx4_dev *dev, u8 port, u16 time);
1401int mlx4_SET_PORT_fcs_check(struct mlx4_dev *dev, u8 port,
1402                            u8 ignore_fcs_value);
1403int mlx4_SET_PORT_VXLAN(struct mlx4_dev *dev, u8 port, u8 steering, int enable);
1404int set_phv_bit(struct mlx4_dev *dev, u8 port, int new_val);
1405int get_phv_bit(struct mlx4_dev *dev, u8 port, int *phv);
1406int mlx4_get_is_vlan_offload_disabled(struct mlx4_dev *dev, u8 port,
1407                                      bool *vlan_offload_disabled);
1408void mlx4_handle_eth_header_mcast_prio(struct mlx4_net_trans_rule_hw_ctrl *ctrl,
1409                                       struct _rule_hw *eth_header);
1410int mlx4_find_cached_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *idx);
1411int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
1412int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
1413void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan);
1414
1415int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
1416                      int npages, u64 iova, u32 *lkey, u32 *rkey);
1417int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
1418                   int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
1419int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
1420void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
1421                    u32 *lkey, u32 *rkey);
1422int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
1423int mlx4_SYNC_TPT(struct mlx4_dev *dev);
1424int mlx4_test_interrupt(struct mlx4_dev *dev, int vector);
1425int mlx4_test_async(struct mlx4_dev *dev);
1426int mlx4_query_diag_counters(struct mlx4_dev *dev, u8 op_modifier,
1427                             const u32 offset[], u32 value[],
1428                             size_t array_len, u8 port);
1429u32 mlx4_get_eqs_per_port(struct mlx4_dev *dev, u8 port);
1430bool mlx4_is_eq_vector_valid(struct mlx4_dev *dev, u8 port, int vector);
1431struct cpu_rmap *mlx4_get_cpu_rmap(struct mlx4_dev *dev, int port);
1432int mlx4_assign_eq(struct mlx4_dev *dev, u8 port, int *vector);
1433void mlx4_release_eq(struct mlx4_dev *dev, int vec);
1434
1435int mlx4_is_eq_shared(struct mlx4_dev *dev, int vector);
1436int mlx4_eq_get_irq(struct mlx4_dev *dev, int vec);
1437
1438int mlx4_get_phys_port_id(struct mlx4_dev *dev);
1439int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port);
1440int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);
1441
1442int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx, u8 usage);
1443void mlx4_counter_free(struct mlx4_dev *dev, u32 idx);
1444int mlx4_get_default_counter_index(struct mlx4_dev *dev, int port);
1445
1446void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry,
1447                         int port);
1448__be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port);
1449void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port);
1450int mlx4_flow_attach(struct mlx4_dev *dev,
1451                     struct mlx4_net_trans_rule *rule, u64 *reg_id);
1452int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id);
1453int mlx4_map_sw_to_hw_steering_mode(struct mlx4_dev *dev,
1454                                    enum mlx4_net_trans_promisc_mode flow_type);
1455int mlx4_map_sw_to_hw_steering_id(struct mlx4_dev *dev,
1456                                  enum mlx4_net_trans_rule_id id);
1457int mlx4_hw_rule_sz(struct mlx4_dev *dev, enum mlx4_net_trans_rule_id id);
1458
1459int mlx4_tunnel_steer_add(struct mlx4_dev *dev, unsigned char *addr,
1460                          int port, int qpn, u16 prio, u64 *reg_id);
1461
1462void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port,
1463                          int i, int val);
1464
1465int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey);
1466
1467int mlx4_is_slave_active(struct mlx4_dev *dev, int slave);
1468int mlx4_gen_pkey_eqe(struct mlx4_dev *dev, int slave, u8 port);
1469int mlx4_gen_guid_change_eqe(struct mlx4_dev *dev, int slave, u8 port);
1470int mlx4_gen_slaves_port_mgt_ev(struct mlx4_dev *dev, u8 port, int attr);
1471int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port, u8 port_subtype_change);
1472enum slave_port_state mlx4_get_slave_port_state(struct mlx4_dev *dev, int slave, u8 port);
1473int set_and_calc_slave_port_state(struct mlx4_dev *dev, int slave, u8 port, int event, enum slave_port_gen_event *gen_event);
1474
1475void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid);
1476__be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave);
1477
1478int mlx4_get_slave_from_roce_gid(struct mlx4_dev *dev, int port, u8 *gid,
1479                                 int *slave_id);
1480int mlx4_get_roce_gid_from_slave(struct mlx4_dev *dev, int port, int slave_id,
1481                                 u8 *gid);
1482
1483int mlx4_FLOW_STEERING_IB_UC_QP_RANGE(struct mlx4_dev *dev, u32 min_range_qpn,
1484                                      u32 max_range_qpn);
1485
1486u64 mlx4_read_clock(struct mlx4_dev *dev);
1487
1488struct mlx4_active_ports {
1489        DECLARE_BITMAP(ports, MLX4_MAX_PORTS);
1490};
1491/* Returns a bitmap of the physical ports which are assigned to slave */
1492struct mlx4_active_ports mlx4_get_active_ports(struct mlx4_dev *dev, int slave);
1493
1494/* Returns the physical port that represents the virtual port of the slave, */
1495/* or a value < 0 in case of an error. If a slave has 2 ports, the identity */
1496/* mapping is returned.                                                     */
1497int mlx4_slave_convert_port(struct mlx4_dev *dev, int slave, int port);
1498
1499struct mlx4_slaves_pport {
1500        DECLARE_BITMAP(slaves, MLX4_MFUNC_MAX);
1501};
1502/* Returns a bitmap of all slaves that are assigned to port. */
1503struct mlx4_slaves_pport mlx4_phys_to_slaves_pport(struct mlx4_dev *dev,
1504                                                   int port);
1505
1506/* Returns a bitmap of all slaves that are assigned exactly to all the */
1507/* the ports that are set in crit_ports.                               */
1508struct mlx4_slaves_pport mlx4_phys_to_slaves_pport_actv(
1509                struct mlx4_dev *dev,
1510                const struct mlx4_active_ports *crit_ports);
1511
1512/* Returns the slave's virtual port that represents the physical port. */
1513int mlx4_phys_to_slave_port(struct mlx4_dev *dev, int slave, int port);
1514
1515int mlx4_get_base_gid_ix(struct mlx4_dev *dev, int slave, int port);
1516
1517int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port);
1518int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis);
1519int mlx4_config_roce_v2_port(struct mlx4_dev *dev, u16 udp_port);
1520int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2);
1521int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port);
1522int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port);
1523int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port,
1524                                 int enable);
1525int mlx4_mr_hw_get_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
1526                       struct mlx4_mpt_entry ***mpt_entry);
1527int mlx4_mr_hw_write_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
1528                         struct mlx4_mpt_entry **mpt_entry);
1529int mlx4_mr_hw_change_pd(struct mlx4_dev *dev, struct mlx4_mpt_entry *mpt_entry,
1530                         u32 pdn);
1531int mlx4_mr_hw_change_access(struct mlx4_dev *dev,
1532                             struct mlx4_mpt_entry *mpt_entry,
1533                             u32 access);
1534void mlx4_mr_hw_put_mpt(struct mlx4_dev *dev,
1535                        struct mlx4_mpt_entry **mpt_entry);
1536void mlx4_mr_rereg_mem_cleanup(struct mlx4_dev *dev, struct mlx4_mr *mr);
1537int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr,
1538                            u64 iova, u64 size, int npages,
1539                            int page_shift, struct mlx4_mpt_entry *mpt_entry);
1540
1541int mlx4_get_module_info(struct mlx4_dev *dev, u8 port,
1542                         u16 offset, u16 size, u8 *data);
1543int mlx4_max_tc(struct mlx4_dev *dev);
1544
1545/* Returns true if running in low memory profile (kdump kernel) */
1546static inline bool mlx4_low_memory_profile(void)
1547{
1548        return is_kdump_kernel();
1549}
1550
1551/* ACCESS REG commands */
1552enum mlx4_access_reg_method {
1553        MLX4_ACCESS_REG_QUERY = 0x1,
1554        MLX4_ACCESS_REG_WRITE = 0x2,
1555};
1556
1557/* ACCESS PTYS Reg command */
1558enum mlx4_ptys_proto {
1559        MLX4_PTYS_IB = 1<<0,
1560        MLX4_PTYS_EN = 1<<2,
1561};
1562
1563enum mlx4_ptys_flags {
1564        MLX4_PTYS_AN_DISABLE_CAP   = 1 << 5,
1565        MLX4_PTYS_AN_DISABLE_ADMIN = 1 << 6,
1566};
1567
1568struct mlx4_ptys_reg {
1569        u8 flags;
1570        u8 local_port;
1571        u8 resrvd2;
1572        u8 proto_mask;
1573        __be32 resrvd3[2];
1574        __be32 eth_proto_cap;
1575        __be16 ib_width_cap;
1576        __be16 ib_speed_cap;
1577        __be32 resrvd4;
1578        __be32 eth_proto_admin;
1579        __be16 ib_width_admin;
1580        __be16 ib_speed_admin;
1581        __be32 resrvd5;
1582        __be32 eth_proto_oper;
1583        __be16 ib_width_oper;
1584        __be16 ib_speed_oper;
1585        __be32 resrvd6;
1586        __be32 eth_proto_lp_adv;
1587} __packed;
1588
1589int mlx4_ACCESS_PTYS_REG(struct mlx4_dev *dev,
1590                         enum mlx4_access_reg_method method,
1591                         struct mlx4_ptys_reg *ptys_reg);
1592
1593int mlx4_get_internal_clock_params(struct mlx4_dev *dev,
1594                                   struct mlx4_clock_params *params);
1595
1596static inline int mlx4_to_hw_uar_index(struct mlx4_dev *dev, int index)
1597{
1598        return (index << (PAGE_SHIFT - dev->uar_page_shift));
1599}
1600
1601static inline int mlx4_get_num_reserved_uar(struct mlx4_dev *dev)
1602{
1603        /* The first 128 UARs are used for EQ doorbells */
1604        return (128 >> (PAGE_SHIFT - dev->uar_page_shift));
1605}
1606#endif /* MLX4_DEVICE_H */
1607