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, 2006 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
  37 #ifndef MTHCA_DEV_H
  38 #define MTHCA_DEV_H
  39
  40 #include <linux/spinlock.h>
  41 #include <linux/kernel.h>
  42 #include <linux/pci.h>
  43 #include <linux/dma-mapping.h>
  44 #include <linux/timer.h>
  45 #include <linux/mutex.h>
  46 #include <linux/list.h>
  47 #include <linux/semaphore.h>
  48
  49 #include "mthca_provider.h"
  50 #include "mthca_doorbell.h"
  51
  52 #define DRV_NAME        "ib_mthca"
  53 #define PFX             DRV_NAME ": "
  54 #define DRV_VERSION     "1.0"
  55 #define DRV_RELDATE     "April 4, 2008"
  56
  57 enum {
  58         MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
  59         MTHCA_FLAG_SRQ        = 1 << 2,
  60         MTHCA_FLAG_MSI_X      = 1 << 3,
  61         MTHCA_FLAG_NO_LAM     = 1 << 4,
  62         MTHCA_FLAG_FMR        = 1 << 5,
  63         MTHCA_FLAG_MEMFREE    = 1 << 6,
  64         MTHCA_FLAG_PCIE       = 1 << 7,
  65         MTHCA_FLAG_SINAI_OPT  = 1 << 8
  66 };
  67
  68 enum {
  69         MTHCA_MAX_PORTS = 2
  70 };
  71
  72 enum {
  73         MTHCA_BOARD_ID_LEN = 64
  74 };
  75
  76 enum {
  77         MTHCA_EQ_CONTEXT_SIZE =  0x40,
  78         MTHCA_CQ_CONTEXT_SIZE =  0x40,
  79         MTHCA_QP_CONTEXT_SIZE = 0x200,
  80         MTHCA_RDB_ENTRY_SIZE  =  0x20,
  81         MTHCA_AV_SIZE         =  0x20,
  82         MTHCA_MGM_ENTRY_SIZE  = 0x100,
  83
  84         /* Arbel FW gives us these, but we need them for Tavor */
  85         MTHCA_MPT_ENTRY_SIZE  =  0x40,
  86         MTHCA_MTT_SEG_SIZE    =  0x40,
  87
  88         MTHCA_QP_PER_MGM      = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
  89 };
  90
  91 enum {
  92         MTHCA_EQ_CMD,
  93         MTHCA_EQ_ASYNC,
  94         MTHCA_EQ_COMP,
  95         MTHCA_NUM_EQ
  96 };
  97
  98 enum {
  99         MTHCA_OPCODE_NOP            = 0x00,
 100         MTHCA_OPCODE_RDMA_WRITE     = 0x08,
 101         MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
 102         MTHCA_OPCODE_SEND           = 0x0a,
 103         MTHCA_OPCODE_SEND_IMM       = 0x0b,
 104         MTHCA_OPCODE_RDMA_READ      = 0x10,
 105         MTHCA_OPCODE_ATOMIC_CS      = 0x11,
 106         MTHCA_OPCODE_ATOMIC_FA      = 0x12,
 107         MTHCA_OPCODE_BIND_MW        = 0x18,
 108         MTHCA_OPCODE_INVALID        = 0xff
 109 };
 110
 111 enum {
 112         MTHCA_CMD_USE_EVENTS         = 1 << 0,
 113         MTHCA_CMD_POST_DOORBELLS     = 1 << 1
 114 };
 115
 116 enum {
 117         MTHCA_CMD_NUM_DBELL_DWORDS = 8
 118 };
 119
 120 struct mthca_cmd {
 121         struct dma_pool          *pool;
 122         struct mutex              hcr_mutex;
 123         struct semaphore          poll_sem;
 124         struct semaphore          event_sem;
 125         int                       max_cmds;
 126         spinlock_t                context_lock;
 127         int                       free_head;
 128         struct mthca_cmd_context *context;
 129         u16                       token_mask;
 130         u32                       flags;
 131         void __iomem             *dbell_map;
 132         u16                       dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
 133 };
 134
 135 struct mthca_limits {
 136         int      num_ports;
 137         int      vl_cap;
 138         int      mtu_cap;
 139         int      gid_table_len;
 140         int      pkey_table_len;
 141         int      local_ca_ack_delay;
 142         int      num_uars;
 143         int      max_sg;
 144         int      num_qps;
 145         int      max_wqes;
 146         int      max_desc_sz;
 147         int      max_qp_init_rdma;
 148         int      reserved_qps;
 149         int      num_srqs;
 150         int      max_srq_wqes;
 151         int      max_srq_sge;
 152         int      reserved_srqs;
 153         int      num_eecs;
 154         int      reserved_eecs;
 155         int      num_cqs;
 156         int      max_cqes;
 157         int      reserved_cqs;
 158         int      num_eqs;
 159         int      reserved_eqs;
 160         int      num_mpts;
 161         int      num_mtt_segs;
 162         int      mtt_seg_size;
 163         int      fmr_reserved_mtts;
 164         int      reserved_mtts;
 165         int      reserved_mrws;
 166         int      reserved_uars;
 167         int      num_mgms;
 168         int      num_amgms;
 169         int      reserved_mcgs;
 170         int      num_pds;
 171         int      reserved_pds;
 172         u32      page_size_cap;
 173         u32      flags;
 174         u16      stat_rate_support;
 175         u8       port_width_cap;
 176 };
 177
 178 struct mthca_alloc {
 179         u32            last;
 180         u32            top;
 181         u32            max;
 182         u32            mask;
 183         spinlock_t     lock;
 184         unsigned long *table;
 185 };
 186
 187 struct mthca_array {
 188         struct {
 189                 void    **page;
 190                 int       used;
 191         } *page_list;
 192 };
 193
 194 struct mthca_uar_table {
 195         struct mthca_alloc alloc;
 196         u64                uarc_base;
 197         int                uarc_size;
 198 };
 199
 200 struct mthca_pd_table {
 201         struct mthca_alloc alloc;
 202 };
 203
 204 struct mthca_buddy {
 205         unsigned long **bits;
 206         int            *num_free;
 207         int             max_order;
 208         spinlock_t      lock;
 209 };
 210
 211 struct mthca_mr_table {
 212         struct mthca_alloc      mpt_alloc;
 213         struct mthca_buddy      mtt_buddy;
 214         struct mthca_buddy     *fmr_mtt_buddy;
 215         u64                     mtt_base;
 216         u64                     mpt_base;
 217         struct mthca_icm_table *mtt_table;
 218         struct mthca_icm_table *mpt_table;
 219         struct {
 220                 void __iomem   *mpt_base;
 221                 void __iomem   *mtt_base;
 222                 struct mthca_buddy mtt_buddy;
 223         } tavor_fmr;
 224 };
 225
 226 struct mthca_eq_table {
 227         struct mthca_alloc alloc;
 228         void __iomem      *clr_int;
 229         u32                clr_mask;
 230         u32                arm_mask;
 231         struct mthca_eq    eq[MTHCA_NUM_EQ];
 232         u64                icm_virt;
 233         struct page       *icm_page;
 234         dma_addr_t         icm_dma;
 235         int                have_irq;
 236         u8                 inta_pin;
 237 };
 238
 239 struct mthca_cq_table {
 240         struct mthca_alloc      alloc;
 241         spinlock_t              lock;
 242         struct mthca_array      cq;
 243         struct mthca_icm_table *table;
 244 };
 245
 246 struct mthca_srq_table {
 247         struct mthca_alloc      alloc;
 248         spinlock_t              lock;
 249         struct mthca_array      srq;
 250         struct mthca_icm_table *table;
 251 };
 252
 253 struct mthca_qp_table {
 254         struct mthca_alloc      alloc;
 255         u32                     rdb_base;
 256         int                     rdb_shift;
 257         int                     sqp_start;
 258         spinlock_t              lock;
 259         struct mthca_array      qp;
 260         struct mthca_icm_table *qp_table;
 261         struct mthca_icm_table *eqp_table;
 262         struct mthca_icm_table *rdb_table;
 263 };
 264
 265 struct mthca_av_table {
 266         struct dma_pool   *pool;
 267         int                num_ddr_avs;
 268         u64                ddr_av_base;
 269         void __iomem      *av_map;
 270         struct mthca_alloc alloc;
 271 };
 272
 273 struct mthca_mcg_table {
 274         struct mutex            mutex;
 275         struct mthca_alloc      alloc;
 276         struct mthca_icm_table *table;
 277 };
 278
 279 struct mthca_catas_err {
 280         u64                     addr;
 281         u32 __iomem            *map;
 282         u32                     size;
 283         struct timer_list       timer;
 284         struct list_head        list;
 285 };
 286
 287 extern struct mutex mthca_device_mutex;
 288
 289 struct mthca_dev {
 290         struct ib_device  ib_dev;
 291         struct pci_dev   *pdev;
 292
 293         int              hca_type;
 294         unsigned long    mthca_flags;
 295         unsigned long    device_cap_flags;
 296
 297         u32              rev_id;
 298         char             board_id[MTHCA_BOARD_ID_LEN];
 299
 300         /* firmware info */
 301         u64              fw_ver;
 302         union {
 303                 struct {
 304                         u64 fw_start;
 305                         u64 fw_end;
 306                 }        tavor;
 307                 struct {
 308                         u64 clr_int_base;
 309                         u64 eq_arm_base;
 310                         u64 eq_set_ci_base;
 311                         struct mthca_icm *fw_icm;
 312                         struct mthca_icm *aux_icm;
 313                         u16 fw_pages;
 314                 }        arbel;
 315         }                fw;
 316
 317         u64              ddr_start;
 318         u64              ddr_end;
 319
 320         MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
 321         struct mutex cap_mask_mutex;
 322
 323         void __iomem    *hcr;
 324         void __iomem    *kar;
 325         void __iomem    *clr_base;
 326         union {
 327                 struct {
 328                         void __iomem *ecr_base;
 329                 } tavor;
 330                 struct {
 331                         void __iomem *eq_arm;
 332                         void __iomem *eq_set_ci_base;
 333                 } arbel;
 334         } eq_regs;
 335
 336         struct mthca_cmd    cmd;
 337         struct mthca_limits limits;
 338
 339         struct mthca_uar_table uar_table;
 340         struct mthca_pd_table  pd_table;
 341         struct mthca_mr_table  mr_table;
 342         struct mthca_eq_table  eq_table;
 343         struct mthca_cq_table  cq_table;
 344         struct mthca_srq_table srq_table;
 345         struct mthca_qp_table  qp_table;
 346         struct mthca_av_table  av_table;
 347         struct mthca_mcg_table mcg_table;
 348
 349         struct mthca_catas_err catas_err;
 350
 351         struct mthca_uar       driver_uar;
 352         struct mthca_db_table *db_tab;
 353         struct mthca_pd        driver_pd;
 354         struct mthca_mr        driver_mr;
 355
 356         struct ib_mad_agent  *send_agent[MTHCA_MAX_PORTS][2];
 357         struct ib_ah         *sm_ah[MTHCA_MAX_PORTS];
 358         spinlock_t            sm_lock;
 359         u8                    rate[MTHCA_MAX_PORTS];
 360         bool                  active;
 361 };
 362
 363 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
 364 extern int mthca_debug_level;
 365
 366 #define mthca_dbg(mdev, format, arg...)                                 \
 367         do {                                                            \
 368                 if (mthca_debug_level)                                  \
 369                         dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
 370         } while (0)
 371
 372 #else /* CONFIG_INFINIBAND_MTHCA_DEBUG */
 373
 374 #define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
 375
 376 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
 377
 378 #define mthca_err(mdev, format, arg...) \
 379         dev_err(&mdev->pdev->dev, format, ## arg)
 380 #define mthca_info(mdev, format, arg...) \
 381         dev_info(&mdev->pdev->dev, format, ## arg)
 382 #define mthca_warn(mdev, format, arg...) \
 383         dev_warn(&mdev->pdev->dev, format, ## arg)
 384
 385 extern void __buggy_use_of_MTHCA_GET(void);
 386 extern void __buggy_use_of_MTHCA_PUT(void);
 387
 388 #define MTHCA_GET(dest, source, offset)                               \
 389         do {                                                          \
 390                 void *__p = (char *) (source) + (offset);             \
 391                 switch (sizeof (dest)) {                              \
 392                 case 1: (dest) = *(u8 *) __p;       break;            \
 393                 case 2: (dest) = be16_to_cpup(__p); break;            \
 394                 case 4: (dest) = be32_to_cpup(__p); break;            \
 395                 case 8: (dest) = be64_to_cpup(__p); break;            \
 396                 default: __buggy_use_of_MTHCA_GET();                  \
 397                 }                                                     \
 398         } while (0)
 399
 400 #define MTHCA_PUT(dest, source, offset)                               \
 401         do {                                                          \
 402                 void *__d = ((char *) (dest) + (offset));             \
 403                 switch (sizeof(source)) {                             \
 404                 case 1: *(u8 *) __d = (source);                break; \
 405                 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
 406                 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
 407                 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
 408                 default: __buggy_use_of_MTHCA_PUT();                  \
 409                 }                                                     \
 410         } while (0)
 411
 412 int mthca_reset(struct mthca_dev *mdev);
 413
 414 u32 mthca_alloc(struct mthca_alloc *alloc);
 415 void mthca_free(struct mthca_alloc *alloc, u32 obj);
 416 int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
 417                      u32 reserved);
 418 void mthca_alloc_cleanup(struct mthca_alloc *alloc);
 419 void *mthca_array_get(struct mthca_array *array, int index);
 420 int mthca_array_set(struct mthca_array *array, int index, void *value);
 421 void mthca_array_clear(struct mthca_array *array, int index);
 422 int mthca_array_init(struct mthca_array *array, int nent);
 423 void mthca_array_cleanup(struct mthca_array *array, int nent);
 424 int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
 425                     union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
 426                     int hca_write, struct mthca_mr *mr);
 427 void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
 428                     int is_direct, struct mthca_mr *mr);
 429
 430 int mthca_init_uar_table(struct mthca_dev *dev);
 431 int mthca_init_pd_table(struct mthca_dev *dev);
 432 int mthca_init_mr_table(struct mthca_dev *dev);
 433 int mthca_init_eq_table(struct mthca_dev *dev);
 434 int mthca_init_cq_table(struct mthca_dev *dev);
 435 int mthca_init_srq_table(struct mthca_dev *dev);
 436 int mthca_init_qp_table(struct mthca_dev *dev);
 437 int mthca_init_av_table(struct mthca_dev *dev);
 438 int mthca_init_mcg_table(struct mthca_dev *dev);
 439
 440 void mthca_cleanup_uar_table(struct mthca_dev *dev);
 441 void mthca_cleanup_pd_table(struct mthca_dev *dev);
 442 void mthca_cleanup_mr_table(struct mthca_dev *dev);
 443 void mthca_cleanup_eq_table(struct mthca_dev *dev);
 444 void mthca_cleanup_cq_table(struct mthca_dev *dev);
 445 void mthca_cleanup_srq_table(struct mthca_dev *dev);
 446 void mthca_cleanup_qp_table(struct mthca_dev *dev);
 447 void mthca_cleanup_av_table(struct mthca_dev *dev);
 448 void mthca_cleanup_mcg_table(struct mthca_dev *dev);
 449
 450 int mthca_register_device(struct mthca_dev *dev);
 451 void mthca_unregister_device(struct mthca_dev *dev);
 452
 453 void mthca_start_catas_poll(struct mthca_dev *dev);
 454 void mthca_stop_catas_poll(struct mthca_dev *dev);
 455 int __mthca_restart_one(struct pci_dev *pdev);
 456 int mthca_catas_init(void);
 457 void mthca_catas_cleanup(void);
 458
 459 int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
 460 void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
 461
 462 int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
 463 void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
 464
 465 int mthca_write_mtt_size(struct mthca_dev *dev);
 466
 467 struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
 468 void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
 469 int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
 470                     int start_index, u64 *buffer_list, int list_len);
 471 int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
 472                    u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
 473 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
 474                            u32 access, struct mthca_mr *mr);
 475 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
 476                         u64 *buffer_list, int buffer_size_shift,
 477                         int list_len, u64 iova, u64 total_size,
 478                         u32 access, struct mthca_mr *mr);
 479 void mthca_free_mr(struct mthca_dev *dev,  struct mthca_mr *mr);
 480
 481 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
 482                     u32 access, struct mthca_fmr *fmr);
 483 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
 484                              int list_len, u64 iova);
 485 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
 486 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
 487                              int list_len, u64 iova);
 488 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
 489 int mthca_free_fmr(struct mthca_dev *dev,  struct mthca_fmr *fmr);
 490
 491 int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
 492 void mthca_unmap_eq_icm(struct mthca_dev *dev);
 493
 494 int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
 495                   struct ib_wc *entry);
 496 int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 497 int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 498 int mthca_init_cq(struct mthca_dev *dev, int nent,
 499                   struct mthca_ucontext *ctx, u32 pdn,
 500                   struct mthca_cq *cq);
 501 void mthca_free_cq(struct mthca_dev *dev,
 502                    struct mthca_cq *cq);
 503 void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
 504 void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
 505                     enum ib_event_type event_type);
 506 void mthca_cq_clean(struct mthca_dev *dev, struct mthca_cq *cq, u32 qpn,
 507                     struct mthca_srq *srq);
 508 void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
 509 int mthca_alloc_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int nent);
 510 void mthca_free_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int cqe);
 511
 512 int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
 513                     struct ib_srq_attr *attr, struct mthca_srq *srq,
 514                     struct ib_udata *udata);
 515 void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
 516 int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 517                      enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
 518 int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
 519 int mthca_max_srq_sge(struct mthca_dev *dev);
 520 void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
 521                      enum ib_event_type event_type);
 522 void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
 523 int mthca_tavor_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
 524                               const struct ib_recv_wr **bad_wr);
 525 int mthca_arbel_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
 526                               const struct ib_recv_wr **bad_wr);
 527
 528 void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
 529                     enum ib_event_type event_type);
 530 int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
 531                    struct ib_qp_init_attr *qp_init_attr);
 532 int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
 533                     struct ib_udata *udata);
 534 int mthca_tavor_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
 535                           const struct ib_send_wr **bad_wr);
 536 int mthca_tavor_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
 537                              const struct ib_recv_wr **bad_wr);
 538 int mthca_arbel_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
 539                           const struct ib_send_wr **bad_wr);
 540 int mthca_arbel_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
 541                              const struct ib_recv_wr **bad_wr);
 542 void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
 543                         int index, int *dbd, __be32 *new_wqe);
 544 int mthca_alloc_qp(struct mthca_dev *dev,
 545                    struct mthca_pd *pd,
 546                    struct mthca_cq *send_cq,
 547                    struct mthca_cq *recv_cq,
 548                    enum ib_qp_type type,
 549                    enum ib_sig_type send_policy,
 550                    struct ib_qp_cap *cap,
 551                    struct mthca_qp *qp,
 552                    struct ib_udata *udata);
 553 int mthca_alloc_sqp(struct mthca_dev *dev,
 554                     struct mthca_pd *pd,
 555                     struct mthca_cq *send_cq,
 556                     struct mthca_cq *recv_cq,
 557                     enum ib_sig_type send_policy,
 558                     struct ib_qp_cap *cap,
 559                     int qpn,
 560                     int port,
 561                     struct mthca_sqp *sqp,
 562                     struct ib_udata *udata);
 563 void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
 564 int mthca_create_ah(struct mthca_dev *dev,
 565                     struct mthca_pd *pd,
 566                     struct rdma_ah_attr *ah_attr,
 567                     struct mthca_ah *ah);
 568 int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
 569 int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
 570                   struct ib_ud_header *header);
 571 int mthca_ah_query(struct ib_ah *ibah, struct rdma_ah_attr *attr);
 572 int mthca_ah_grh_present(struct mthca_ah *ah);
 573 u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
 574 enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);
 575
 576 int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
 577 int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
 578
 579 int mthca_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 580                       const struct ib_wc *in_wc, const struct ib_grh *in_grh,
 581                       const struct ib_mad *in, struct ib_mad *out,
 582                       size_t *out_mad_size, u16 *out_mad_pkey_index);
 583 int mthca_create_agents(struct mthca_dev *dev);
 584 void mthca_free_agents(struct mthca_dev *dev);
 585
 586 static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
 587 {
 588         return container_of(ibdev, struct mthca_dev, ib_dev);
 589 }
 590
 591 static inline int mthca_is_memfree(struct mthca_dev *dev)
 592 {
 593         return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
 594 }
 595
 596 #endif /* MTHCA_DEV_H */