drivers/infiniband/hw/mthca/mthca_dev.h

   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  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  * $Id: mthca_dev.h 1349 2004-12-16 21:09:43Z roland $
  33  */
  34
  35 #ifndef MTHCA_DEV_H
  36 #define MTHCA_DEV_H
  37
  38 #include <linux/spinlock.h>
  39 #include <linux/kernel.h>
  40 #include <linux/pci.h>
  41 #include <linux/dma-mapping.h>
  42 #include <asm/semaphore.h>
  43
  44 #include "mthca_provider.h"
  45 #include "mthca_doorbell.h"
  46
  47 #define DRV_NAME        "ib_mthca"
  48 #define PFX             DRV_NAME ": "
  49 #define DRV_VERSION     "0.06-pre"
  50 #define DRV_RELDATE     "November 8, 2004"
  51
  52 enum {
  53         MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
  54         MTHCA_FLAG_SRQ        = 1 << 2,
  55         MTHCA_FLAG_MSI        = 1 << 3,
  56         MTHCA_FLAG_MSI_X      = 1 << 4,
  57         MTHCA_FLAG_NO_LAM     = 1 << 5,
  58         MTHCA_FLAG_FMR        = 1 << 6,
  59         MTHCA_FLAG_MEMFREE    = 1 << 7,
  60         MTHCA_FLAG_PCIE       = 1 << 8
  61 };
  62
  63 enum {
  64         MTHCA_MAX_PORTS = 2
  65 };
  66
  67 enum {
  68         MTHCA_EQ_CONTEXT_SIZE =  0x40,
  69         MTHCA_CQ_CONTEXT_SIZE =  0x40,
  70         MTHCA_QP_CONTEXT_SIZE = 0x200,
  71         MTHCA_RDB_ENTRY_SIZE  =  0x20,
  72         MTHCA_AV_SIZE         =  0x20,
  73         MTHCA_MGM_ENTRY_SIZE  =  0x40,
  74
  75         /* Arbel FW gives us these, but we need them for Tavor */
  76         MTHCA_MPT_ENTRY_SIZE  =  0x40,
  77         MTHCA_MTT_SEG_SIZE    =  0x40,
  78 };
  79
  80 enum {
  81         MTHCA_EQ_CMD,
  82         MTHCA_EQ_ASYNC,
  83         MTHCA_EQ_COMP,
  84         MTHCA_NUM_EQ
  85 };
  86
  87 enum {
  88         MTHCA_OPCODE_NOP            = 0x00,
  89         MTHCA_OPCODE_RDMA_WRITE     = 0x08,
  90         MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
  91         MTHCA_OPCODE_SEND           = 0x0a,
  92         MTHCA_OPCODE_SEND_IMM       = 0x0b,
  93         MTHCA_OPCODE_RDMA_READ      = 0x10,
  94         MTHCA_OPCODE_ATOMIC_CS      = 0x11,
  95         MTHCA_OPCODE_ATOMIC_FA      = 0x12,
  96         MTHCA_OPCODE_BIND_MW        = 0x18,
  97         MTHCA_OPCODE_INVALID        = 0xff
  98 };
  99
 100 struct mthca_cmd {
 101         int                       use_events;
 102         struct semaphore          hcr_sem;
 103         struct semaphore          poll_sem;
 104         struct semaphore          event_sem;
 105         int                       max_cmds;
 106         spinlock_t                context_lock;
 107         int                       free_head;
 108         struct mthca_cmd_context *context;
 109         u16                       token_mask;
 110 };
 111
 112 struct mthca_limits {
 113         int      num_ports;
 114         int      vl_cap;
 115         int      mtu_cap;
 116         int      gid_table_len;
 117         int      pkey_table_len;
 118         int      local_ca_ack_delay;
 119         int      num_uars;
 120         int      max_sg;
 121         int      num_qps;
 122         int      reserved_qps;
 123         int      num_srqs;
 124         int      reserved_srqs;
 125         int      num_eecs;
 126         int      reserved_eecs;
 127         int      num_cqs;
 128         int      reserved_cqs;
 129         int      num_eqs;
 130         int      reserved_eqs;
 131         int      num_mpts;
 132         int      num_mtt_segs;
 133         int      fmr_reserved_mtts;
 134         int      reserved_mtts;
 135         int      reserved_mrws;
 136         int      reserved_uars;
 137         int      num_mgms;
 138         int      num_amgms;
 139         int      reserved_mcgs;
 140         int      num_pds;
 141         int      reserved_pds;
 142 };
 143
 144 struct mthca_alloc {
 145         u32            last;
 146         u32            top;
 147         u32            max;
 148         u32            mask;
 149         spinlock_t     lock;
 150         unsigned long *table;
 151 };
 152
 153 struct mthca_array {
 154         struct {
 155                 void    **page;
 156                 int       used;
 157         } *page_list;
 158 };
 159
 160 struct mthca_uar_table {
 161         struct mthca_alloc alloc;
 162         u64                uarc_base;
 163         int                uarc_size;
 164 };
 165
 166 struct mthca_pd_table {
 167         struct mthca_alloc alloc;
 168 };
 169
 170 struct mthca_buddy {
 171         unsigned long **bits;
 172         int             max_order;
 173         spinlock_t      lock;
 174 };
 175
 176 struct mthca_mr_table {
 177         struct mthca_alloc      mpt_alloc;
 178         struct mthca_buddy      mtt_buddy;
 179         struct mthca_buddy     *fmr_mtt_buddy;
 180         u64                     mtt_base;
 181         u64                     mpt_base;
 182         struct mthca_icm_table *mtt_table;
 183         struct mthca_icm_table *mpt_table;
 184         struct {
 185                 void __iomem   *mpt_base;
 186                 void __iomem   *mtt_base;
 187                 struct mthca_buddy mtt_buddy;
 188         } tavor_fmr;
 189 };
 190
 191 struct mthca_eq_table {
 192         struct mthca_alloc alloc;
 193         void __iomem      *clr_int;
 194         u32                clr_mask;
 195         u32                arm_mask;
 196         struct mthca_eq    eq[MTHCA_NUM_EQ];
 197         u64                icm_virt;
 198         struct page       *icm_page;
 199         dma_addr_t         icm_dma;
 200         int                have_irq;
 201         u8                 inta_pin;
 202 };
 203
 204 struct mthca_cq_table {
 205         struct mthca_alloc      alloc;
 206         spinlock_t              lock;
 207         struct mthca_array      cq;
 208         struct mthca_icm_table *table;
 209 };
 210
 211 struct mthca_qp_table {
 212         struct mthca_alloc      alloc;
 213         u32                     rdb_base;
 214         int                     rdb_shift;
 215         int                     sqp_start;
 216         spinlock_t              lock;
 217         struct mthca_array      qp;
 218         struct mthca_icm_table *qp_table;
 219         struct mthca_icm_table *eqp_table;
 220         struct mthca_icm_table *rdb_table;
 221 };
 222
 223 struct mthca_av_table {
 224         struct pci_pool   *pool;
 225         int                num_ddr_avs;
 226         u64                ddr_av_base;
 227         void __iomem      *av_map;
 228         struct mthca_alloc alloc;
 229 };
 230
 231 struct mthca_mcg_table {
 232         struct semaphore        sem;
 233         struct mthca_alloc      alloc;
 234         struct mthca_icm_table *table;
 235 };
 236
 237 struct mthca_dev {
 238         struct ib_device  ib_dev;
 239         struct pci_dev   *pdev;
 240
 241         int              hca_type;
 242         unsigned long    mthca_flags;
 243         unsigned long    device_cap_flags;
 244
 245         u32              rev_id;
 246
 247         /* firmware info */
 248         u64              fw_ver;
 249         union {
 250                 struct {
 251                         u64 fw_start;
 252                         u64 fw_end;
 253                 }        tavor;
 254                 struct {
 255                         u64 clr_int_base;
 256                         u64 eq_arm_base;
 257                         u64 eq_set_ci_base;
 258                         struct mthca_icm *fw_icm;
 259                         struct mthca_icm *aux_icm;
 260                         u16 fw_pages;
 261                 }        arbel;
 262         }                fw;
 263
 264         u64              ddr_start;
 265         u64              ddr_end;
 266
 267         MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
 268         struct semaphore cap_mask_mutex;
 269
 270         void __iomem    *hcr;
 271         void __iomem    *kar;
 272         void __iomem    *clr_base;
 273         union {
 274                 struct {
 275                         void __iomem *ecr_base;
 276                 } tavor;
 277                 struct {
 278                         void __iomem *eq_arm;
 279                         void __iomem *eq_set_ci_base;
 280                 } arbel;
 281         } eq_regs;
 282
 283         struct mthca_cmd    cmd;
 284         struct mthca_limits limits;
 285
 286         struct mthca_uar_table uar_table;
 287         struct mthca_pd_table  pd_table;
 288         struct mthca_mr_table  mr_table;
 289         struct mthca_eq_table  eq_table;
 290         struct mthca_cq_table  cq_table;
 291         struct mthca_qp_table  qp_table;
 292         struct mthca_av_table  av_table;
 293         struct mthca_mcg_table mcg_table;
 294
 295         struct mthca_uar       driver_uar;
 296         struct mthca_db_table *db_tab;
 297         struct mthca_pd        driver_pd;
 298         struct mthca_mr        driver_mr;
 299
 300         struct ib_mad_agent  *send_agent[MTHCA_MAX_PORTS][2];
 301         struct ib_ah         *sm_ah[MTHCA_MAX_PORTS];
 302         spinlock_t            sm_lock;
 303 };
 304
 305 #define mthca_dbg(mdev, format, arg...) \
 306         dev_dbg(&mdev->pdev->dev, format, ## arg)
 307 #define mthca_err(mdev, format, arg...) \
 308         dev_err(&mdev->pdev->dev, format, ## arg)
 309 #define mthca_info(mdev, format, arg...) \
 310         dev_info(&mdev->pdev->dev, format, ## arg)
 311 #define mthca_warn(mdev, format, arg...) \
 312         dev_warn(&mdev->pdev->dev, format, ## arg)
 313
 314 extern void __buggy_use_of_MTHCA_GET(void);
 315 extern void __buggy_use_of_MTHCA_PUT(void);
 316
 317 #define MTHCA_GET(dest, source, offset)                               \
 318         do {                                                          \
 319                 void *__p = (char *) (source) + (offset);             \
 320                 switch (sizeof (dest)) {                              \
 321                         case 1: (dest) = *(u8 *) __p;       break;    \
 322                         case 2: (dest) = be16_to_cpup(__p); break;    \
 323                         case 4: (dest) = be32_to_cpup(__p); break;    \
 324                         case 8: (dest) = be64_to_cpup(__p); break;    \
 325                         default: __buggy_use_of_MTHCA_GET();          \
 326                 }                                                     \
 327         } while (0)
 328
 329 #define MTHCA_PUT(dest, source, offset)                               \
 330         do {                                                          \
 331                 __typeof__(source) *__p =                             \
 332                         (__typeof__(source) *) ((char *) (dest) + (offset)); \
 333                 switch (sizeof(source)) {                             \
 334                         case 1: *__p = (source);            break;    \
 335                         case 2: *__p = cpu_to_be16(source); break;    \
 336                         case 4: *__p = cpu_to_be32(source); break;    \
 337                         case 8: *__p = cpu_to_be64(source); break;    \
 338                         default: __buggy_use_of_MTHCA_PUT();          \
 339                 }                                                     \
 340         } while (0)
 341
 342 int mthca_reset(struct mthca_dev *mdev);
 343
 344 u32 mthca_alloc(struct mthca_alloc *alloc);
 345 void mthca_free(struct mthca_alloc *alloc, u32 obj);
 346 int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
 347                      u32 reserved);
 348 void mthca_alloc_cleanup(struct mthca_alloc *alloc);
 349 void *mthca_array_get(struct mthca_array *array, int index);
 350 int mthca_array_set(struct mthca_array *array, int index, void *value);
 351 void mthca_array_clear(struct mthca_array *array, int index);
 352 int mthca_array_init(struct mthca_array *array, int nent);
 353 void mthca_array_cleanup(struct mthca_array *array, int nent);
 354
 355 int mthca_init_uar_table(struct mthca_dev *dev);
 356 int mthca_init_pd_table(struct mthca_dev *dev);
 357 int mthca_init_mr_table(struct mthca_dev *dev);
 358 int mthca_init_eq_table(struct mthca_dev *dev);
 359 int mthca_init_cq_table(struct mthca_dev *dev);
 360 int mthca_init_qp_table(struct mthca_dev *dev);
 361 int mthca_init_av_table(struct mthca_dev *dev);
 362 int mthca_init_mcg_table(struct mthca_dev *dev);
 363
 364 void mthca_cleanup_uar_table(struct mthca_dev *dev);
 365 void mthca_cleanup_pd_table(struct mthca_dev *dev);
 366 void mthca_cleanup_mr_table(struct mthca_dev *dev);
 367 void mthca_cleanup_eq_table(struct mthca_dev *dev);
 368 void mthca_cleanup_cq_table(struct mthca_dev *dev);
 369 void mthca_cleanup_qp_table(struct mthca_dev *dev);
 370 void mthca_cleanup_av_table(struct mthca_dev *dev);
 371 void mthca_cleanup_mcg_table(struct mthca_dev *dev);
 372
 373 int mthca_register_device(struct mthca_dev *dev);
 374 void mthca_unregister_device(struct mthca_dev *dev);
 375
 376 int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
 377 void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
 378
 379 int mthca_pd_alloc(struct mthca_dev *dev, struct mthca_pd *pd);
 380 void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
 381
 382 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
 383                            u32 access, struct mthca_mr *mr);
 384 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
 385                         u64 *buffer_list, int buffer_size_shift,
 386                         int list_len, u64 iova, u64 total_size,
 387                         u32 access, struct mthca_mr *mr);
 388 void mthca_free_mr(struct mthca_dev *dev,  struct mthca_mr *mr);
 389
 390 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
 391                     u32 access, struct mthca_fmr *fmr);
 392 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
 393                              int list_len, u64 iova);
 394 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
 395 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
 396                              int list_len, u64 iova);
 397 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
 398 int mthca_free_fmr(struct mthca_dev *dev,  struct mthca_fmr *fmr);
 399
 400 int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
 401 void mthca_unmap_eq_icm(struct mthca_dev *dev);
 402
 403 int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
 404                   struct ib_wc *entry);
 405 int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
 406 int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
 407 int mthca_init_cq(struct mthca_dev *dev, int nent,
 408                   struct mthca_cq *cq);
 409 void mthca_free_cq(struct mthca_dev *dev,
 410                    struct mthca_cq *cq);
 411 void mthca_cq_event(struct mthca_dev *dev, u32 cqn);
 412 void mthca_cq_clean(struct mthca_dev *dev, u32 cqn, u32 qpn);
 413
 414 void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
 415                     enum ib_event_type event_type);
 416 int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask);
 417 int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 418                           struct ib_send_wr **bad_wr);
 419 int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 420                              struct ib_recv_wr **bad_wr);
 421 int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 422                           struct ib_send_wr **bad_wr);
 423 int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 424                              struct ib_recv_wr **bad_wr);
 425 int mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
 426                        int index, int *dbd, u32 *new_wqe);
 427 int mthca_alloc_qp(struct mthca_dev *dev,
 428                    struct mthca_pd *pd,
 429                    struct mthca_cq *send_cq,
 430                    struct mthca_cq *recv_cq,
 431                    enum ib_qp_type type,
 432                    enum ib_sig_type send_policy,
 433                    struct mthca_qp *qp);
 434 int mthca_alloc_sqp(struct mthca_dev *dev,
 435                     struct mthca_pd *pd,
 436                     struct mthca_cq *send_cq,
 437                     struct mthca_cq *recv_cq,
 438                     enum ib_sig_type send_policy,
 439                     int qpn,
 440                     int port,
 441                     struct mthca_sqp *sqp);
 442 void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
 443 int mthca_create_ah(struct mthca_dev *dev,
 444                     struct mthca_pd *pd,
 445                     struct ib_ah_attr *ah_attr,
 446                     struct mthca_ah *ah);
 447 int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
 448 int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
 449                   struct ib_ud_header *header);
 450
 451 int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
 452 int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
 453
 454 int mthca_process_mad(struct ib_device *ibdev,
 455                       int mad_flags,
 456                       u8 port_num,
 457                       struct ib_wc *in_wc,
 458                       struct ib_grh *in_grh,
 459                       struct ib_mad *in_mad,
 460                       struct ib_mad *out_mad);
 461 int mthca_create_agents(struct mthca_dev *dev);
 462 void mthca_free_agents(struct mthca_dev *dev);
 463
 464 static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
 465 {
 466         return container_of(ibdev, struct mthca_dev, ib_dev);
 467 }
 468
 469 static inline int mthca_is_memfree(struct mthca_dev *dev)
 470 {
 471         return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
 472 }
 473
 474 #endif /* MTHCA_DEV_H */