drivers/infiniband/ulp/ipoib/ipoib.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) 2004 Voltaire, Inc. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  *
  34  * $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $
  35  */
  36
  37 #ifndef _IPOIB_H
  38 #define _IPOIB_H
  39
  40 #include <linux/list.h>
  41 #include <linux/skbuff.h>
  42 #include <linux/netdevice.h>
  43 #include <linux/workqueue.h>
  44 #include <linux/kref.h>
  45 #include <linux/if_infiniband.h>
  46 #include <linux/mutex.h>
  47
  48 #include <net/neighbour.h>
  49
  50 #include <asm/atomic.h>
  51
  52 #include <rdma/ib_verbs.h>
  53 #include <rdma/ib_pack.h>
  54 #include <rdma/ib_sa.h>
  55
  56 /* constants */
  57
  58 enum {
  59         IPOIB_PACKET_SIZE         = 2048,
  60         IPOIB_BUF_SIZE            = IPOIB_PACKET_SIZE + IB_GRH_BYTES,
  61
  62         IPOIB_ENCAP_LEN           = 4,
  63
  64         IPOIB_CM_MTU              = 0x10000 - 0x10, /* padding to align header to 16 */
  65         IPOIB_CM_BUF_SIZE         = IPOIB_CM_MTU  + IPOIB_ENCAP_LEN,
  66         IPOIB_CM_HEAD_SIZE        = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
  67         IPOIB_CM_RX_SG            = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
  68         IPOIB_RX_RING_SIZE        = 128,
  69         IPOIB_TX_RING_SIZE        = 64,
  70         IPOIB_MAX_QUEUE_SIZE      = 8192,
  71         IPOIB_MIN_QUEUE_SIZE      = 2,
  72
  73         IPOIB_NUM_WC              = 4,
  74
  75         IPOIB_MAX_PATH_REC_QUEUE  = 3,
  76         IPOIB_MAX_MCAST_QUEUE     = 3,
  77
  78         IPOIB_FLAG_OPER_UP        = 0,
  79         IPOIB_FLAG_INITIALIZED    = 1,
  80         IPOIB_FLAG_ADMIN_UP       = 2,
  81         IPOIB_PKEY_ASSIGNED       = 3,
  82         IPOIB_PKEY_STOP           = 4,
  83         IPOIB_FLAG_SUBINTERFACE   = 5,
  84         IPOIB_MCAST_RUN           = 6,
  85         IPOIB_STOP_REAPER         = 7,
  86         IPOIB_MCAST_STARTED       = 8,
  87         IPOIB_FLAG_ADMIN_CM       = 9,
  88         IPOIB_FLAG_UMCAST         = 10,
  89
  90         IPOIB_MAX_BACKOFF_SECONDS = 16,
  91
  92         IPOIB_MCAST_FLAG_FOUND    = 0,  /* used in set_multicast_list */
  93         IPOIB_MCAST_FLAG_SENDONLY = 1,
  94         IPOIB_MCAST_FLAG_BUSY     = 2,  /* joining or already joined */
  95         IPOIB_MCAST_FLAG_ATTACHED = 3,
  96 };
  97
  98 #define IPOIB_OP_RECV   (1ul << 31)
  99 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 100 #define IPOIB_OP_CM     (1ul << 30)
 101 #else
 102 #define IPOIB_OP_CM     (0)
 103 #endif
 104
 105 /* structs */
 106
 107 struct ipoib_header {
 108         __be16  proto;
 109         u16     reserved;
 110 };
 111
 112 struct ipoib_pseudoheader {
 113         u8  hwaddr[INFINIBAND_ALEN];
 114 };
 115
 116 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
 117 struct ipoib_mcast {
 118         struct ib_sa_mcmember_rec mcmember;
 119         struct ib_sa_multicast   *mc;
 120         struct ipoib_ah          *ah;
 121
 122         struct rb_node    rb_node;
 123         struct list_head  list;
 124
 125         unsigned long created;
 126         unsigned long backoff;
 127
 128         unsigned long flags;
 129         unsigned char logcount;
 130
 131         struct list_head  neigh_list;
 132
 133         struct sk_buff_head pkt_queue;
 134
 135         struct net_device *dev;
 136 };
 137
 138 struct ipoib_rx_buf {
 139         struct sk_buff *skb;
 140         u64             mapping;
 141 };
 142
 143 struct ipoib_tx_buf {
 144         struct sk_buff *skb;
 145         u64             mapping;
 146 };
 147
 148 struct ib_cm_id;
 149
 150 struct ipoib_cm_data {
 151         __be32 qpn; /* High byte MUST be ignored on receive */
 152         __be32 mtu;
 153 };
 154
 155 /*
 156  * Quoting 10.3.1 Queue Pair and EE Context States:
 157  *
 158  * Note, for QPs that are associated with an SRQ, the Consumer should take the
 159  * QP through the Error State before invoking a Destroy QP or a Modify QP to the
 160  * Reset State.  The Consumer may invoke the Destroy QP without first performing
 161  * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
 162  * Last WQE Reached Event. However, if the Consumer does not wait for the
 163  * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
 164  * leakage may occur. Therefore, it is good programming practice to tear down a
 165  * QP that is associated with an SRQ by using the following process:
 166  *
 167  * - Put the QP in the Error State
 168  * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
 169  * - either:
 170  *       drain the CQ by invoking the Poll CQ verb and either wait for CQ
 171  *       to be empty or the number of Poll CQ operations has exceeded
 172  *       CQ capacity size;
 173  * - or
 174  *       post another WR that completes on the same CQ and wait for this
 175  *       WR to return as a WC;
 176  * - and then invoke a Destroy QP or Reset QP.
 177  *
 178  * We use the second option and wait for a completion on the
 179  * same CQ before destroying QPs attached to our SRQ.
 180  */
 181
 182 enum ipoib_cm_state {
 183         IPOIB_CM_RX_LIVE,
 184         IPOIB_CM_RX_ERROR, /* Ignored by stale task */
 185         IPOIB_CM_RX_FLUSH  /* Last WQE Reached event observed */
 186 };
 187
 188 struct ipoib_cm_rx {
 189         struct ib_cm_id     *id;
 190         struct ib_qp        *qp;
 191         struct list_head     list;
 192         struct net_device   *dev;
 193         unsigned long        jiffies;
 194         enum ipoib_cm_state  state;
 195 };
 196
 197 struct ipoib_cm_tx {
 198         struct ib_cm_id     *id;
 199         struct ib_qp        *qp;
 200         struct list_head     list;
 201         struct net_device   *dev;
 202         struct ipoib_neigh  *neigh;
 203         struct ipoib_path   *path;
 204         struct ipoib_tx_buf *tx_ring;
 205         unsigned             tx_head;
 206         unsigned             tx_tail;
 207         unsigned long        flags;
 208         u32                  mtu;
 209         struct ib_wc         ibwc[IPOIB_NUM_WC];
 210 };
 211
 212 struct ipoib_cm_rx_buf {
 213         struct sk_buff *skb;
 214         u64 mapping[IPOIB_CM_RX_SG];
 215 };
 216
 217 struct ipoib_cm_dev_priv {
 218         struct ib_srq          *srq;
 219         struct ipoib_cm_rx_buf *srq_ring;
 220         struct ib_cm_id        *id;
 221         struct list_head        passive_ids;   /* state: LIVE */
 222         struct list_head        rx_error_list; /* state: ERROR */
 223         struct list_head        rx_flush_list; /* state: FLUSH, drain not started */
 224         struct list_head        rx_drain_list; /* state: FLUSH, drain started */
 225         struct list_head        rx_reap_list;  /* state: FLUSH, drain done */
 226         struct work_struct      start_task;
 227         struct work_struct      reap_task;
 228         struct work_struct      skb_task;
 229         struct work_struct      rx_reap_task;
 230         struct delayed_work     stale_task;
 231         struct sk_buff_head     skb_queue;
 232         struct list_head        start_list;
 233         struct list_head        reap_list;
 234         struct ib_wc            ibwc[IPOIB_NUM_WC];
 235         struct ib_sge           rx_sge[IPOIB_CM_RX_SG];
 236         struct ib_recv_wr       rx_wr;
 237 };
 238
 239 /*
 240  * Device private locking: tx_lock protects members used in TX fast
 241  * path (and we use LLTX so upper layers don't do extra locking).
 242  * lock protects everything else.  lock nests inside of tx_lock (ie
 243  * tx_lock must be acquired first if needed).
 244  */
 245 struct ipoib_dev_priv {
 246         spinlock_t lock;
 247
 248         struct net_device *dev;
 249
 250         struct napi_struct napi;
 251
 252         unsigned long flags;
 253
 254         struct mutex mcast_mutex;
 255         struct mutex vlan_mutex;
 256
 257         struct rb_root  path_tree;
 258         struct list_head path_list;
 259
 260         struct ipoib_mcast *broadcast;
 261         struct list_head multicast_list;
 262         struct rb_root multicast_tree;
 263
 264         struct delayed_work pkey_poll_task;
 265         struct delayed_work mcast_task;
 266         struct work_struct flush_task;
 267         struct work_struct restart_task;
 268         struct delayed_work ah_reap_task;
 269         struct work_struct pkey_event_task;
 270
 271         struct ib_device *ca;
 272         u8                port;
 273         u16               pkey;
 274         u16               pkey_index;
 275         struct ib_pd     *pd;
 276         struct ib_mr     *mr;
 277         struct ib_cq     *cq;
 278         struct ib_qp     *qp;
 279         u32               qkey;
 280
 281         union ib_gid local_gid;
 282         u16          local_lid;
 283
 284         unsigned int admin_mtu;
 285         unsigned int mcast_mtu;
 286
 287         struct ipoib_rx_buf *rx_ring;
 288
 289         spinlock_t           tx_lock;
 290         struct ipoib_tx_buf *tx_ring;
 291         unsigned             tx_head;
 292         unsigned             tx_tail;
 293         struct ib_sge        tx_sge;
 294         struct ib_send_wr    tx_wr;
 295         unsigned             tx_outstanding;
 296
 297         struct ib_wc ibwc[IPOIB_NUM_WC];
 298
 299         struct list_head dead_ahs;
 300
 301         struct ib_event_handler event_handler;
 302
 303         struct net_device *parent;
 304         struct list_head child_intfs;
 305         struct list_head list;
 306
 307 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 308         struct ipoib_cm_dev_priv cm;
 309 #endif
 310
 311 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 312         struct list_head fs_list;
 313         struct dentry *mcg_dentry;
 314         struct dentry *path_dentry;
 315 #endif
 316 };
 317
 318 struct ipoib_ah {
 319         struct net_device *dev;
 320         struct ib_ah      *ah;
 321         struct list_head   list;
 322         struct kref        ref;
 323         unsigned           last_send;
 324 };
 325
 326 struct ipoib_path {
 327         struct net_device    *dev;
 328         struct ib_sa_path_rec pathrec;
 329         struct ipoib_ah      *ah;
 330         struct sk_buff_head   queue;
 331
 332         struct list_head      neigh_list;
 333
 334         int                   query_id;
 335         struct ib_sa_query   *query;
 336         struct completion     done;
 337
 338         struct rb_node        rb_node;
 339         struct list_head      list;
 340 };
 341
 342 struct ipoib_neigh {
 343         struct ipoib_ah    *ah;
 344 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 345         struct ipoib_cm_tx *cm;
 346 #endif
 347         union ib_gid        dgid;
 348         struct sk_buff_head queue;
 349
 350         struct neighbour   *neighbour;
 351
 352         struct list_head    list;
 353 };
 354
 355 /*
 356  * We stash a pointer to our private neighbour information after our
 357  * hardware address in neigh->ha.  The ALIGN() expression here makes
 358  * sure that this pointer is stored aligned so that an unaligned
 359  * load is not needed to dereference it.
 360  */
 361 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
 362 {
 363         return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
 364                                      INFINIBAND_ALEN, sizeof(void *));
 365 }
 366
 367 struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh);
 368 void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
 369
 370 extern struct workqueue_struct *ipoib_workqueue;
 371
 372 /* functions */
 373
 374 int ipoib_poll(struct napi_struct *napi, int budget);
 375 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
 376
 377 struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
 378                                  struct ib_pd *pd, struct ib_ah_attr *attr);
 379 void ipoib_free_ah(struct kref *kref);
 380 static inline void ipoib_put_ah(struct ipoib_ah *ah)
 381 {
 382         kref_put(&ah->ref, ipoib_free_ah);
 383 }
 384
 385 int ipoib_open(struct net_device *dev);
 386 int ipoib_add_pkey_attr(struct net_device *dev);
 387 int ipoib_add_umcast_attr(struct net_device *dev);
 388
 389 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 390                 struct ipoib_ah *address, u32 qpn);
 391 void ipoib_reap_ah(struct work_struct *work);
 392
 393 void ipoib_flush_paths(struct net_device *dev);
 394 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
 395
 396 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 397 void ipoib_ib_dev_flush(struct work_struct *work);
 398 void ipoib_pkey_event(struct work_struct *work);
 399 void ipoib_ib_dev_cleanup(struct net_device *dev);
 400
 401 int ipoib_ib_dev_open(struct net_device *dev);
 402 int ipoib_ib_dev_up(struct net_device *dev);
 403 int ipoib_ib_dev_down(struct net_device *dev, int flush);
 404 int ipoib_ib_dev_stop(struct net_device *dev, int flush);
 405
 406 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 407 void ipoib_dev_cleanup(struct net_device *dev);
 408
 409 void ipoib_mcast_join_task(struct work_struct *work);
 410 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
 411
 412 void ipoib_mcast_restart_task(struct work_struct *work);
 413 int ipoib_mcast_start_thread(struct net_device *dev);
 414 int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
 415
 416 void ipoib_mcast_dev_down(struct net_device *dev);
 417 void ipoib_mcast_dev_flush(struct net_device *dev);
 418
 419 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 420 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
 421 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
 422 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
 423                                   union ib_gid *gid,
 424                                   unsigned long *created,
 425                                   unsigned int *queuelen,
 426                                   unsigned int *complete,
 427                                   unsigned int *send_only);
 428
 429 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
 430 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
 431 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 432                           struct ipoib_path *path);
 433 #endif
 434
 435 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
 436                        union ib_gid *mgid);
 437 int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
 438                        union ib_gid *mgid);
 439
 440 int ipoib_init_qp(struct net_device *dev);
 441 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
 442 void ipoib_transport_dev_cleanup(struct net_device *dev);
 443
 444 void ipoib_event(struct ib_event_handler *handler,
 445                  struct ib_event *record);
 446
 447 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
 448 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
 449
 450 void ipoib_pkey_poll(struct work_struct *work);
 451 int ipoib_pkey_dev_delay_open(struct net_device *dev);
 452 void ipoib_drain_cq(struct net_device *dev);
 453
 454 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 455
 456 #define IPOIB_FLAGS_RC          0x80
 457 #define IPOIB_FLAGS_UC          0x40
 458
 459 /* We don't support UC connections at the moment */
 460 #define IPOIB_CM_SUPPORTED(ha)   (ha[0] & (IPOIB_FLAGS_RC))
 461
 462 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
 463 {
 464         struct ipoib_dev_priv *priv = netdev_priv(dev);
 465         return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
 466                 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
 467 }
 468
 469 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
 470 {
 471         struct ipoib_dev_priv *priv = netdev_priv(dev);
 472         return IPOIB_CM_SUPPORTED(n->ha) &&
 473                 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
 474 }
 475
 476 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
 477
 478 {
 479         return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
 480 }
 481
 482 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
 483 {
 484         return neigh->cm;
 485 }
 486
 487 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
 488 {
 489         neigh->cm = tx;
 490 }
 491
 492 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
 493 int ipoib_cm_dev_open(struct net_device *dev);
 494 void ipoib_cm_dev_stop(struct net_device *dev);
 495 int ipoib_cm_dev_init(struct net_device *dev);
 496 int ipoib_cm_add_mode_attr(struct net_device *dev);
 497 void ipoib_cm_dev_cleanup(struct net_device *dev);
 498 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
 499                                     struct ipoib_neigh *neigh);
 500 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
 501 void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
 502                            unsigned int mtu);
 503 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
 504 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
 505 #else
 506
 507 struct ipoib_cm_tx;
 508
 509 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
 510 {
 511         return 0;
 512 }
 513 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
 514
 515 {
 516         return 0;
 517 }
 518
 519 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
 520
 521 {
 522         return 0;
 523 }
 524
 525 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
 526 {
 527         return NULL;
 528 }
 529
 530 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
 531 {
 532 }
 533
 534 static inline
 535 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
 536 {
 537         return;
 538 }
 539
 540 static inline
 541 int ipoib_cm_dev_open(struct net_device *dev)
 542 {
 543         return 0;
 544 }
 545
 546 static inline
 547 void ipoib_cm_dev_stop(struct net_device *dev)
 548 {
 549         return;
 550 }
 551
 552 static inline
 553 int ipoib_cm_dev_init(struct net_device *dev)
 554 {
 555         return -ENOSYS;
 556 }
 557
 558 static inline
 559 void ipoib_cm_dev_cleanup(struct net_device *dev)
 560 {
 561         return;
 562 }
 563
 564 static inline
 565 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
 566                                     struct ipoib_neigh *neigh)
 567 {
 568         return NULL;
 569 }
 570
 571 static inline
 572 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
 573 {
 574         return;
 575 }
 576
 577 static inline
 578 int ipoib_cm_add_mode_attr(struct net_device *dev)
 579 {
 580         return 0;
 581 }
 582
 583 static inline void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
 584                                          unsigned int mtu)
 585 {
 586         dev_kfree_skb_any(skb);
 587 }
 588
 589 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 590 {
 591 }
 592
 593 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
 594 {
 595 }
 596 #endif
 597
 598 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 599 void ipoib_create_debug_files(struct net_device *dev);
 600 void ipoib_delete_debug_files(struct net_device *dev);
 601 int ipoib_register_debugfs(void);
 602 void ipoib_unregister_debugfs(void);
 603 #else
 604 static inline void ipoib_create_debug_files(struct net_device *dev) { }
 605 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
 606 static inline int ipoib_register_debugfs(void) { return 0; }
 607 static inline void ipoib_unregister_debugfs(void) { }
 608 #endif
 609
 610
 611 #define ipoib_printk(level, priv, format, arg...)       \
 612         printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
 613 #define ipoib_warn(priv, format, arg...)                \
 614         ipoib_printk(KERN_WARNING, priv, format , ## arg)
 615
 616 extern int ipoib_sendq_size;
 617 extern int ipoib_recvq_size;
 618
 619 extern struct ib_sa_client ipoib_sa_client;
 620
 621 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 622 extern int ipoib_debug_level;
 623
 624 #define ipoib_dbg(priv, format, arg...)                 \
 625         do {                                            \
 626                 if (ipoib_debug_level > 0)                      \
 627                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 628         } while (0)
 629 #define ipoib_dbg_mcast(priv, format, arg...)           \
 630         do {                                            \
 631                 if (mcast_debug_level > 0)              \
 632                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 633         } while (0)
 634 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 635 #define ipoib_dbg(priv, format, arg...)                 \
 636         do { (void) (priv); } while (0)
 637 #define ipoib_dbg_mcast(priv, format, arg...)           \
 638         do { (void) (priv); } while (0)
 639 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 640
 641 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
 642 #define ipoib_dbg_data(priv, format, arg...)            \
 643         do {                                            \
 644                 if (data_debug_level > 0)               \
 645                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 646         } while (0)
 647 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 648 #define ipoib_dbg_data(priv, format, arg...)            \
 649         do { (void) (priv); } while (0)
 650 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 651
 652
 653 #define IPOIB_GID_FMT           "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
 654                                 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
 655
 656 #define IPOIB_GID_RAW_ARG(gid)  ((u8 *)(gid))[0], \
 657                                 ((u8 *)(gid))[1], \
 658                                 ((u8 *)(gid))[2], \
 659                                 ((u8 *)(gid))[3], \
 660                                 ((u8 *)(gid))[4], \
 661                                 ((u8 *)(gid))[5], \
 662                                 ((u8 *)(gid))[6], \
 663                                 ((u8 *)(gid))[7], \
 664                                 ((u8 *)(gid))[8], \
 665                                 ((u8 *)(gid))[9], \
 666                                 ((u8 *)(gid))[10],\
 667                                 ((u8 *)(gid))[11],\
 668                                 ((u8 *)(gid))[12],\
 669                                 ((u8 *)(gid))[13],\
 670                                 ((u8 *)(gid))[14],\
 671                                 ((u8 *)(gid))[15]
 672
 673 #define IPOIB_GID_ARG(gid)      IPOIB_GID_RAW_ARG((gid).raw)
 674
 675 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
 676
 677 #endif /* _IPOIB_H */