drivers/infiniband/hw/mthca/mthca_dev.h

   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
   4  * Copyright (c) 2005 Cisco Systems.  All rights reserved.
   5  * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
   6  * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
   7  *
   8  * This software is available to you under a choice of one of two
   9  * licenses.  You may choose to be licensed under the terms of the GNU
  10  * General Public License (GPL) Version 2, available from the file
  11  * COPYING in the main directory of this source tree, or the
  12  * OpenIB.org BSD license below:
  13  *
  14  *     Redistribution and use in source and binary forms, with or
  15  *     without modification, are permitted provided that the following
  16  *     conditions are met:
  17  *
  18  *      - Redistributions of source code must retain the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer.
  21  *
  22  *      - Redistributions in binary form must reproduce the above
  23  *        copyright notice, this list of conditions and the following
  24  *        disclaimer in the documentation and/or other materials
  25  *        provided with the distribution.
  26  *
  27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  31  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  32  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  33  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  34  * SOFTWARE.
  35  *
  36  * $Id: mthca_dev.h 1349 2004-12-16 21:09:43Z roland $
  37  */
  38
  39 #ifndef MTHCA_DEV_H
  40 #define MTHCA_DEV_H
  41
  42 #include <linux/spinlock.h>
  43 #include <linux/kernel.h>
  44 #include <linux/pci.h>
  45 #include <linux/dma-mapping.h>
  46 #include <asm/semaphore.h>
  47
  48 #include "mthca_provider.h"
  49 #include "mthca_doorbell.h"
  50
  51 #define DRV_NAME        "ib_mthca"
  52 #define PFX             DRV_NAME ": "
  53 #define DRV_VERSION     "0.06"
  54 #define DRV_RELDATE     "June 23, 2005"
  55
  56 enum {
  57         MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
  58         MTHCA_FLAG_SRQ        = 1 << 2,
  59         MTHCA_FLAG_MSI        = 1 << 3,
  60         MTHCA_FLAG_MSI_X      = 1 << 4,
  61         MTHCA_FLAG_NO_LAM     = 1 << 5,
  62         MTHCA_FLAG_FMR        = 1 << 6,
  63         MTHCA_FLAG_MEMFREE    = 1 << 7,
  64         MTHCA_FLAG_PCIE       = 1 << 8
  65 };
  66
  67 enum {
  68         MTHCA_MAX_PORTS = 2
  69 };
  70
  71 enum {
  72         MTHCA_BOARD_ID_LEN = 64
  73 };
  74
  75 enum {
  76         MTHCA_EQ_CONTEXT_SIZE =  0x40,
  77         MTHCA_CQ_CONTEXT_SIZE =  0x40,
  78         MTHCA_QP_CONTEXT_SIZE = 0x200,
  79         MTHCA_RDB_ENTRY_SIZE  =  0x20,
  80         MTHCA_AV_SIZE         =  0x20,
  81         MTHCA_MGM_ENTRY_SIZE  =  0x40,
  82
  83         /* Arbel FW gives us these, but we need them for Tavor */
  84         MTHCA_MPT_ENTRY_SIZE  =  0x40,
  85         MTHCA_MTT_SEG_SIZE    =  0x40,
  86
  87         MTHCA_QP_PER_MGM      = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
  88 };
  89
  90 enum {
  91         MTHCA_EQ_CMD,
  92         MTHCA_EQ_ASYNC,
  93         MTHCA_EQ_COMP,
  94         MTHCA_NUM_EQ
  95 };
  96
  97 enum {
  98         MTHCA_OPCODE_NOP            = 0x00,
  99         MTHCA_OPCODE_RDMA_WRITE     = 0x08,
 100         MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
 101         MTHCA_OPCODE_SEND           = 0x0a,
 102         MTHCA_OPCODE_SEND_IMM       = 0x0b,
 103         MTHCA_OPCODE_RDMA_READ      = 0x10,
 104         MTHCA_OPCODE_ATOMIC_CS      = 0x11,
 105         MTHCA_OPCODE_ATOMIC_FA      = 0x12,
 106         MTHCA_OPCODE_BIND_MW        = 0x18,
 107         MTHCA_OPCODE_INVALID        = 0xff
 108 };
 109
 110 struct mthca_cmd {
 111         struct pci_pool          *pool;
 112         int                       use_events;
 113         struct semaphore          hcr_sem;
 114         struct semaphore          poll_sem;
 115         struct semaphore          event_sem;
 116         int                       max_cmds;
 117         spinlock_t                context_lock;
 118         int                       free_head;
 119         struct mthca_cmd_context *context;
 120         u16                       token_mask;
 121 };
 122
 123 struct mthca_limits {
 124         int      num_ports;
 125         int      vl_cap;
 126         int      mtu_cap;
 127         int      gid_table_len;
 128         int      pkey_table_len;
 129         int      local_ca_ack_delay;
 130         int      num_uars;
 131         int      max_sg;
 132         int      num_qps;
 133         int      max_wqes;
 134         int      max_qp_init_rdma;
 135         int      reserved_qps;
 136         int      num_srqs;
 137         int      max_srq_wqes;
 138         int      reserved_srqs;
 139         int      num_eecs;
 140         int      reserved_eecs;
 141         int      num_cqs;
 142         int      max_cqes;
 143         int      reserved_cqs;
 144         int      num_eqs;
 145         int      reserved_eqs;
 146         int      num_mpts;
 147         int      num_mtt_segs;
 148         int      fmr_reserved_mtts;
 149         int      reserved_mtts;
 150         int      reserved_mrws;
 151         int      reserved_uars;
 152         int      num_mgms;
 153         int      num_amgms;
 154         int      reserved_mcgs;
 155         int      num_pds;
 156         int      reserved_pds;
 157         u32      flags;
 158         u8       port_width_cap;
 159 };
 160
 161 struct mthca_alloc {
 162         u32            last;
 163         u32            top;
 164         u32            max;
 165         u32            mask;
 166         spinlock_t     lock;
 167         unsigned long *table;
 168 };
 169
 170 struct mthca_array {
 171         struct {
 172                 void    **page;
 173                 int       used;
 174         } *page_list;
 175 };
 176
 177 struct mthca_uar_table {
 178         struct mthca_alloc alloc;
 179         u64                uarc_base;
 180         int                uarc_size;
 181 };
 182
 183 struct mthca_pd_table {
 184         struct mthca_alloc alloc;
 185 };
 186
 187 struct mthca_buddy {
 188         unsigned long **bits;
 189         int             max_order;
 190         spinlock_t      lock;
 191 };
 192
 193 struct mthca_mr_table {
 194         struct mthca_alloc      mpt_alloc;
 195         struct mthca_buddy      mtt_buddy;
 196         struct mthca_buddy     *fmr_mtt_buddy;
 197         u64                     mtt_base;
 198         u64                     mpt_base;
 199         struct mthca_icm_table *mtt_table;
 200         struct mthca_icm_table *mpt_table;
 201         struct {
 202                 void __iomem   *mpt_base;
 203                 void __iomem   *mtt_base;
 204                 struct mthca_buddy mtt_buddy;
 205         } tavor_fmr;
 206 };
 207
 208 struct mthca_eq_table {
 209         struct mthca_alloc alloc;
 210         void __iomem      *clr_int;
 211         u32                clr_mask;
 212         u32                arm_mask;
 213         struct mthca_eq    eq[MTHCA_NUM_EQ];
 214         u64                icm_virt;
 215         struct page       *icm_page;
 216         dma_addr_t         icm_dma;
 217         int                have_irq;
 218         u8                 inta_pin;
 219 };
 220
 221 struct mthca_cq_table {
 222         struct mthca_alloc      alloc;
 223         spinlock_t              lock;
 224         struct mthca_array      cq;
 225         struct mthca_icm_table *table;
 226 };
 227
 228 struct mthca_srq_table {
 229         struct mthca_alloc      alloc;
 230         spinlock_t              lock;
 231         struct mthca_array      srq;
 232         struct mthca_icm_table *table;
 233 };
 234
 235 struct mthca_qp_table {
 236         struct mthca_alloc      alloc;
 237         u32                     rdb_base;
 238         int                     rdb_shift;
 239         int                     sqp_start;
 240         spinlock_t              lock;
 241         struct mthca_array      qp;
 242         struct mthca_icm_table *qp_table;
 243         struct mthca_icm_table *eqp_table;
 244         struct mthca_icm_table *rdb_table;
 245 };
 246
 247 struct mthca_av_table {
 248         struct pci_pool   *pool;
 249         int                num_ddr_avs;
 250         u64                ddr_av_base;
 251         void __iomem      *av_map;
 252         struct mthca_alloc alloc;
 253 };
 254
 255 struct mthca_mcg_table {
 256         struct semaphore        sem;
 257         struct mthca_alloc      alloc;
 258         struct mthca_icm_table *table;
 259 };
 260
 261 struct mthca_catas_err {
 262         u64                     addr;
 263         u32 __iomem            *map;
 264         unsigned long           stop;
 265         u32                     size;
 266         struct timer_list       timer;
 267 };
 268
 269 struct mthca_dev {
 270         struct ib_device  ib_dev;
 271         struct pci_dev   *pdev;
 272
 273         int              hca_type;
 274         unsigned long    mthca_flags;
 275         unsigned long    device_cap_flags;
 276
 277         u32              rev_id;
 278         char             board_id[MTHCA_BOARD_ID_LEN];
 279
 280         /* firmware info */
 281         u64              fw_ver;
 282         union {
 283                 struct {
 284                         u64 fw_start;
 285                         u64 fw_end;
 286                 }        tavor;
 287                 struct {
 288                         u64 clr_int_base;
 289                         u64 eq_arm_base;
 290                         u64 eq_set_ci_base;
 291                         struct mthca_icm *fw_icm;
 292                         struct mthca_icm *aux_icm;
 293                         u16 fw_pages;
 294                 }        arbel;
 295         }                fw;
 296
 297         u64              ddr_start;
 298         u64              ddr_end;
 299
 300         MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
 301         struct semaphore cap_mask_mutex;
 302
 303         void __iomem    *hcr;
 304         void __iomem    *kar;
 305         void __iomem    *clr_base;
 306         union {
 307                 struct {
 308                         void __iomem *ecr_base;
 309                 } tavor;
 310                 struct {
 311                         void __iomem *eq_arm;
 312                         void __iomem *eq_set_ci_base;
 313                 } arbel;
 314         } eq_regs;
 315
 316         struct mthca_cmd    cmd;
 317         struct mthca_limits limits;
 318
 319         struct mthca_uar_table uar_table;
 320         struct mthca_pd_table  pd_table;
 321         struct mthca_mr_table  mr_table;
 322         struct mthca_eq_table  eq_table;
 323         struct mthca_cq_table  cq_table;
 324         struct mthca_srq_table srq_table;
 325         struct mthca_qp_table  qp_table;
 326         struct mthca_av_table  av_table;
 327         struct mthca_mcg_table mcg_table;
 328
 329         struct mthca_catas_err catas_err;
 330
 331         struct mthca_uar       driver_uar;
 332         struct mthca_db_table *db_tab;
 333         struct mthca_pd        driver_pd;
 334         struct mthca_mr        driver_mr;
 335
 336         struct ib_mad_agent  *send_agent[MTHCA_MAX_PORTS][2];
 337         struct ib_ah         *sm_ah[MTHCA_MAX_PORTS];
 338         spinlock_t            sm_lock;
 339 };
 340
 341 #define mthca_dbg(mdev, format, arg...) \
 342         dev_dbg(&mdev->pdev->dev, format, ## arg)
 343 #define mthca_err(mdev, format, arg...) \
 344         dev_err(&mdev->pdev->dev, format, ## arg)
 345 #define mthca_info(mdev, format, arg...) \
 346         dev_info(&mdev->pdev->dev, format, ## arg)
 347 #define mthca_warn(mdev, format, arg...) \
 348         dev_warn(&mdev->pdev->dev, format, ## arg)
 349
 350 extern void __buggy_use_of_MTHCA_GET(void);
 351 extern void __buggy_use_of_MTHCA_PUT(void);
 352
 353 #define MTHCA_GET(dest, source, offset)                               \
 354         do {                                                          \
 355                 void *__p = (char *) (source) + (offset);             \
 356                 switch (sizeof (dest)) {                              \
 357                         case 1: (dest) = *(u8 *) __p;       break;    \
 358                         case 2: (dest) = be16_to_cpup(__p); break;    \
 359                         case 4: (dest) = be32_to_cpup(__p); break;    \
 360                         case 8: (dest) = be64_to_cpup(__p); break;    \
 361                         default: __buggy_use_of_MTHCA_GET();          \
 362                 }                                                     \
 363         } while (0)
 364
 365 #define MTHCA_PUT(dest, source, offset)                               \
 366         do {                                                          \
 367                 void *__d = ((char *) (dest) + (offset));             \
 368                 switch (sizeof(source)) {                             \
 369                 case 1: *(u8 *) __d = (source);                break; \
 370                 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
 371                 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
 372                 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
 373                 default: __buggy_use_of_MTHCA_PUT();                  \
 374                 }                                                     \
 375         } while (0)
 376
 377 int mthca_reset(struct mthca_dev *mdev);
 378
 379 u32 mthca_alloc(struct mthca_alloc *alloc);
 380 void mthca_free(struct mthca_alloc *alloc, u32 obj);
 381 int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
 382                      u32 reserved);
 383 void mthca_alloc_cleanup(struct mthca_alloc *alloc);
 384 void *mthca_array_get(struct mthca_array *array, int index);
 385 int mthca_array_set(struct mthca_array *array, int index, void *value);
 386 void mthca_array_clear(struct mthca_array *array, int index);
 387 int mthca_array_init(struct mthca_array *array, int nent);
 388 void mthca_array_cleanup(struct mthca_array *array, int nent);
 389 int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
 390                     union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
 391                     int hca_write, struct mthca_mr *mr);
 392 void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
 393                     int is_direct, struct mthca_mr *mr);
 394
 395 int mthca_init_uar_table(struct mthca_dev *dev);
 396 int mthca_init_pd_table(struct mthca_dev *dev);
 397 int mthca_init_mr_table(struct mthca_dev *dev);
 398 int mthca_init_eq_table(struct mthca_dev *dev);
 399 int mthca_init_cq_table(struct mthca_dev *dev);
 400 int mthca_init_srq_table(struct mthca_dev *dev);
 401 int mthca_init_qp_table(struct mthca_dev *dev);
 402 int mthca_init_av_table(struct mthca_dev *dev);
 403 int mthca_init_mcg_table(struct mthca_dev *dev);
 404
 405 void mthca_cleanup_uar_table(struct mthca_dev *dev);
 406 void mthca_cleanup_pd_table(struct mthca_dev *dev);
 407 void mthca_cleanup_mr_table(struct mthca_dev *dev);
 408 void mthca_cleanup_eq_table(struct mthca_dev *dev);
 409 void mthca_cleanup_cq_table(struct mthca_dev *dev);
 410 void mthca_cleanup_srq_table(struct mthca_dev *dev);
 411 void mthca_cleanup_qp_table(struct mthca_dev *dev);
 412 void mthca_cleanup_av_table(struct mthca_dev *dev);
 413 void mthca_cleanup_mcg_table(struct mthca_dev *dev);
 414
 415 int mthca_register_device(struct mthca_dev *dev);
 416 void mthca_unregister_device(struct mthca_dev *dev);
 417
 418 void mthca_start_catas_poll(struct mthca_dev *dev);
 419 void mthca_stop_catas_poll(struct mthca_dev *dev);
 420
 421 int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
 422 void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
 423
 424 int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
 425 void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
 426
 427 struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
 428 void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
 429 int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
 430                     int start_index, u64 *buffer_list, int list_len);
 431 int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
 432                    u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
 433 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
 434                            u32 access, struct mthca_mr *mr);
 435 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
 436                         u64 *buffer_list, int buffer_size_shift,
 437                         int list_len, u64 iova, u64 total_size,
 438                         u32 access, struct mthca_mr *mr);
 439 void mthca_free_mr(struct mthca_dev *dev,  struct mthca_mr *mr);
 440
 441 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
 442                     u32 access, struct mthca_fmr *fmr);
 443 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
 444                              int list_len, u64 iova);
 445 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
 446 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
 447                              int list_len, u64 iova);
 448 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
 449 int mthca_free_fmr(struct mthca_dev *dev,  struct mthca_fmr *fmr);
 450
 451 int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
 452 void mthca_unmap_eq_icm(struct mthca_dev *dev);
 453
 454 int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
 455                   struct ib_wc *entry);
 456 int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
 457 int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
 458 int mthca_init_cq(struct mthca_dev *dev, int nent,
 459                   struct mthca_ucontext *ctx, u32 pdn,
 460                   struct mthca_cq *cq);
 461 void mthca_free_cq(struct mthca_dev *dev,
 462                    struct mthca_cq *cq);
 463 void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
 464 void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
 465                     enum ib_event_type event_type);
 466 void mthca_cq_clean(struct mthca_dev *dev, u32 cqn, u32 qpn,
 467                     struct mthca_srq *srq);
 468
 469 int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
 470                     struct ib_srq_attr *attr, struct mthca_srq *srq);
 471 void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
 472 int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 473                      enum ib_srq_attr_mask attr_mask);
 474 void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
 475                      enum ib_event_type event_type);
 476 void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
 477 int mthca_tavor_post_srq_recv(struct ib_srq *srq, struct ib_recv_wr *wr,
 478                               struct ib_recv_wr **bad_wr);
 479 int mthca_arbel_post_srq_recv(struct ib_srq *srq, struct ib_recv_wr *wr,
 480                               struct ib_recv_wr **bad_wr);
 481
 482 void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
 483                     enum ib_event_type event_type);
 484 int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask);
 485 int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 486                           struct ib_send_wr **bad_wr);
 487 int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 488                              struct ib_recv_wr **bad_wr);
 489 int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 490                           struct ib_send_wr **bad_wr);
 491 int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 492                              struct ib_recv_wr **bad_wr);
 493 int mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
 494                        int index, int *dbd, __be32 *new_wqe);
 495 int mthca_alloc_qp(struct mthca_dev *dev,
 496                    struct mthca_pd *pd,
 497                    struct mthca_cq *send_cq,
 498                    struct mthca_cq *recv_cq,
 499                    enum ib_qp_type type,
 500                    enum ib_sig_type send_policy,
 501                    struct ib_qp_cap *cap,
 502                    struct mthca_qp *qp);
 503 int mthca_alloc_sqp(struct mthca_dev *dev,
 504                     struct mthca_pd *pd,
 505                     struct mthca_cq *send_cq,
 506                     struct mthca_cq *recv_cq,
 507                     enum ib_sig_type send_policy,
 508                     struct ib_qp_cap *cap,
 509                     int qpn,
 510                     int port,
 511                     struct mthca_sqp *sqp);
 512 void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
 513 int mthca_create_ah(struct mthca_dev *dev,
 514                     struct mthca_pd *pd,
 515                     struct ib_ah_attr *ah_attr,
 516                     struct mthca_ah *ah);
 517 int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
 518 int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
 519                   struct ib_ud_header *header);
 520
 521 int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
 522 int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
 523
 524 int mthca_process_mad(struct ib_device *ibdev,
 525                       int mad_flags,
 526                       u8 port_num,
 527                       struct ib_wc *in_wc,
 528                       struct ib_grh *in_grh,
 529                       struct ib_mad *in_mad,
 530                       struct ib_mad *out_mad);
 531 int mthca_create_agents(struct mthca_dev *dev);
 532 void mthca_free_agents(struct mthca_dev *dev);
 533
 534 static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
 535 {
 536         return container_of(ibdev, struct mthca_dev, ib_dev);
 537 }
 538
 539 static inline int mthca_is_memfree(struct mthca_dev *dev)
 540 {
 541         return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
 542 }
 543
 544 #endif /* MTHCA_DEV_H */