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_NETIF_STOPPED  = 9,
  88         IPOIB_FLAG_ADMIN_CM       = 10,
  89         IPOIB_FLAG_UMCAST         = 11,
  90
  91         IPOIB_MAX_BACKOFF_SECONDS = 16,
  92
  93         IPOIB_MCAST_FLAG_FOUND    = 0,  /* used in set_multicast_list */
  94         IPOIB_MCAST_FLAG_SENDONLY = 1,
  95         IPOIB_MCAST_FLAG_BUSY     = 2,  /* joining or already joined */
  96         IPOIB_MCAST_FLAG_ATTACHED = 3,
  97 };
  98
  99 #define IPOIB_OP_RECV   (1ul << 31)
 100 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 101 #define IPOIB_CM_OP_SRQ (1ul << 30)
 102 #else
 103 #define IPOIB_CM_OP_SRQ (0)
 104 #endif
 105
 106 /* structs */
 107
 108 struct ipoib_header {
 109         __be16  proto;
 110         u16     reserved;
 111 };
 112
 113 struct ipoib_pseudoheader {
 114         u8  hwaddr[INFINIBAND_ALEN];
 115 };
 116
 117 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
 118 struct ipoib_mcast {
 119         struct ib_sa_mcmember_rec mcmember;
 120         struct ib_sa_multicast   *mc;
 121         struct ipoib_ah          *ah;
 122
 123         struct rb_node    rb_node;
 124         struct list_head  list;
 125
 126         unsigned long created;
 127         unsigned long backoff;
 128
 129         unsigned long flags;
 130         unsigned char logcount;
 131
 132         struct list_head  neigh_list;
 133
 134         struct sk_buff_head pkt_queue;
 135
 136         struct net_device *dev;
 137 };
 138
 139 struct ipoib_rx_buf {
 140         struct sk_buff *skb;
 141         u64             mapping;
 142 };
 143
 144 struct ipoib_tx_buf {
 145         struct sk_buff *skb;
 146         u64             mapping;
 147 };
 148
 149 struct ib_cm_id;
 150
 151 struct ipoib_cm_data {
 152         __be32 qpn; /* High byte MUST be ignored on receive */
 153         __be32 mtu;
 154 };
 155
 156 /*
 157  * Quoting 10.3.1 Queue Pair and EE Context States:
 158  *
 159  * Note, for QPs that are associated with an SRQ, the Consumer should take the
 160  * QP through the Error State before invoking a Destroy QP or a Modify QP to the
 161  * Reset State.  The Consumer may invoke the Destroy QP without first performing
 162  * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
 163  * Last WQE Reached Event. However, if the Consumer does not wait for the
 164  * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
 165  * leakage may occur. Therefore, it is good programming practice to tear down a
 166  * QP that is associated with an SRQ by using the following process:
 167  *
 168  * - Put the QP in the Error State
 169  * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
 170  * - either:
 171  *       drain the CQ by invoking the Poll CQ verb and either wait for CQ
 172  *       to be empty or the number of Poll CQ operations has exceeded
 173  *       CQ capacity size;
 174  * - or
 175  *       post another WR that completes on the same CQ and wait for this
 176  *       WR to return as a WC;
 177  * - and then invoke a Destroy QP or Reset QP.
 178  *
 179  * We use the second option and wait for a completion on the
 180  * same CQ before destroying QPs attached to our SRQ.
 181  */
 182
 183 enum ipoib_cm_state {
 184         IPOIB_CM_RX_LIVE,
 185         IPOIB_CM_RX_ERROR, /* Ignored by stale task */
 186         IPOIB_CM_RX_FLUSH  /* Last WQE Reached event observed */
 187 };
 188
 189 struct ipoib_cm_rx {
 190         struct ib_cm_id     *id;
 191         struct ib_qp        *qp;
 192         struct list_head     list;
 193         struct net_device   *dev;
 194         unsigned long        jiffies;
 195         enum ipoib_cm_state  state;
 196 };
 197
 198 struct ipoib_cm_tx {
 199         struct ib_cm_id     *id;
 200         struct ib_cq        *cq;
 201         struct ib_qp        *qp;
 202         struct list_head     list;
 203         struct net_device   *dev;
 204         struct ipoib_neigh  *neigh;
 205         struct ipoib_path   *path;
 206         struct ipoib_tx_buf *tx_ring;
 207         unsigned             tx_head;
 208         unsigned             tx_tail;
 209         unsigned long        flags;
 210         u32                  mtu;
 211         struct ib_wc         ibwc[IPOIB_NUM_WC];
 212 };
 213
 214 struct ipoib_cm_rx_buf {
 215         struct sk_buff *skb;
 216         u64 mapping[IPOIB_CM_RX_SG];
 217 };
 218
 219 struct ipoib_cm_dev_priv {
 220         struct ib_srq          *srq;
 221         struct ipoib_cm_rx_buf *srq_ring;
 222         struct ib_cm_id        *id;
 223         struct list_head        passive_ids;   /* state: LIVE */
 224         struct list_head        rx_error_list; /* state: ERROR */
 225         struct list_head        rx_flush_list; /* state: FLUSH, drain not started */
 226         struct list_head        rx_drain_list; /* state: FLUSH, drain started */
 227         struct list_head        rx_reap_list;  /* state: FLUSH, drain done */
 228         struct work_struct      start_task;
 229         struct work_struct      reap_task;
 230         struct work_struct      skb_task;
 231         struct work_struct      rx_reap_task;
 232         struct delayed_work     stale_task;
 233         struct sk_buff_head     skb_queue;
 234         struct list_head        start_list;
 235         struct list_head        reap_list;
 236         struct ib_wc            ibwc[IPOIB_NUM_WC];
 237         struct ib_sge           rx_sge[IPOIB_CM_RX_SG];
 238         struct ib_recv_wr       rx_wr;
 239 };
 240
 241 /*
 242  * Device private locking: tx_lock protects members used in TX fast
 243  * path (and we use LLTX so upper layers don't do extra locking).
 244  * lock protects everything else.  lock nests inside of tx_lock (ie
 245  * tx_lock must be acquired first if needed).
 246  */
 247 struct ipoib_dev_priv {
 248         spinlock_t lock;
 249
 250         struct net_device *dev;
 251
 252         struct napi_struct napi;
 253
 254         unsigned long flags;
 255
 256         struct mutex mcast_mutex;
 257         struct mutex vlan_mutex;
 258
 259         struct rb_root  path_tree;
 260         struct list_head path_list;
 261
 262         struct ipoib_mcast *broadcast;
 263         struct list_head multicast_list;
 264         struct rb_root multicast_tree;
 265
 266         struct delayed_work pkey_poll_task;
 267         struct delayed_work mcast_task;
 268         struct work_struct flush_task;
 269         struct work_struct restart_task;
 270         struct delayed_work ah_reap_task;
 271         struct work_struct pkey_event_task;
 272
 273         struct ib_device *ca;
 274         u8                port;
 275         u16               pkey;
 276         u16               pkey_index;
 277         struct ib_pd     *pd;
 278         struct ib_mr     *mr;
 279         struct ib_cq     *cq;
 280         struct ib_qp     *qp;
 281         u32               qkey;
 282
 283         union ib_gid local_gid;
 284         u16          local_lid;
 285
 286         unsigned int admin_mtu;
 287         unsigned int mcast_mtu;
 288
 289         struct ipoib_rx_buf *rx_ring;
 290
 291         spinlock_t           tx_lock;
 292         struct ipoib_tx_buf *tx_ring;
 293         unsigned             tx_head;
 294         unsigned             tx_tail;
 295         struct ib_sge        tx_sge;
 296         struct ib_send_wr    tx_wr;
 297
 298         struct ib_wc ibwc[IPOIB_NUM_WC];
 299
 300         struct list_head dead_ahs;
 301
 302         struct ib_event_handler event_handler;
 303
 304         struct net_device *parent;
 305         struct list_head child_intfs;
 306         struct list_head list;
 307
 308 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 309         struct ipoib_cm_dev_priv cm;
 310 #endif
 311
 312 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 313         struct list_head fs_list;
 314         struct dentry *mcg_dentry;
 315         struct dentry *path_dentry;
 316 #endif
 317 };
 318
 319 struct ipoib_ah {
 320         struct net_device *dev;
 321         struct ib_ah      *ah;
 322         struct list_head   list;
 323         struct kref        ref;
 324         unsigned           last_send;
 325 };
 326
 327 struct ipoib_path {
 328         struct net_device    *dev;
 329         struct ib_sa_path_rec pathrec;
 330         struct ipoib_ah      *ah;
 331         struct sk_buff_head   queue;
 332
 333         struct list_head      neigh_list;
 334
 335         int                   query_id;
 336         struct ib_sa_query   *query;
 337         struct completion     done;
 338
 339         struct rb_node        rb_node;
 340         struct list_head      list;
 341 };
 342
 343 struct ipoib_neigh {
 344         struct ipoib_ah    *ah;
 345 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 346         struct ipoib_cm_tx *cm;
 347 #endif
 348         union ib_gid        dgid;
 349         struct sk_buff_head queue;
 350
 351         struct neighbour   *neighbour;
 352
 353         struct list_head    list;
 354 };
 355
 356 /*
 357  * We stash a pointer to our private neighbour information after our
 358  * hardware address in neigh->ha.  The ALIGN() expression here makes
 359  * sure that this pointer is stored aligned so that an unaligned
 360  * load is not needed to dereference it.
 361  */
 362 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
 363 {
 364         return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
 365                                      INFINIBAND_ALEN, sizeof(void *));
 366 }
 367
 368 struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh);
 369 void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
 370
 371 extern struct workqueue_struct *ipoib_workqueue;
 372
 373 /* functions */
 374
 375 int ipoib_poll(struct napi_struct *napi, int budget);
 376 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
 377
 378 struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
 379                                  struct ib_pd *pd, struct ib_ah_attr *attr);
 380 void ipoib_free_ah(struct kref *kref);
 381 static inline void ipoib_put_ah(struct ipoib_ah *ah)
 382 {
 383         kref_put(&ah->ref, ipoib_free_ah);
 384 }
 385
 386 int ipoib_open(struct net_device *dev);
 387 int ipoib_add_pkey_attr(struct net_device *dev);
 388 int ipoib_add_umcast_attr(struct net_device *dev);
 389
 390 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 391                 struct ipoib_ah *address, u32 qpn);
 392 void ipoib_reap_ah(struct work_struct *work);
 393
 394 void ipoib_flush_paths(struct net_device *dev);
 395 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
 396
 397 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 398 void ipoib_ib_dev_flush(struct work_struct *work);
 399 void ipoib_pkey_event(struct work_struct *work);
 400 void ipoib_ib_dev_cleanup(struct net_device *dev);
 401
 402 int ipoib_ib_dev_open(struct net_device *dev);
 403 int ipoib_ib_dev_up(struct net_device *dev);
 404 int ipoib_ib_dev_down(struct net_device *dev, int flush);
 405 int ipoib_ib_dev_stop(struct net_device *dev, int flush);
 406
 407 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 408 void ipoib_dev_cleanup(struct net_device *dev);
 409
 410 void ipoib_mcast_join_task(struct work_struct *work);
 411 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
 412
 413 void ipoib_mcast_restart_task(struct work_struct *work);
 414 int ipoib_mcast_start_thread(struct net_device *dev);
 415 int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
 416
 417 void ipoib_mcast_dev_down(struct net_device *dev);
 418 void ipoib_mcast_dev_flush(struct net_device *dev);
 419
 420 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 421 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
 422 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
 423 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
 424                                   union ib_gid *gid,
 425                                   unsigned long *created,
 426                                   unsigned int *queuelen,
 427                                   unsigned int *complete,
 428                                   unsigned int *send_only);
 429
 430 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
 431 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
 432 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 433                           struct ipoib_path *path);
 434 #endif
 435
 436 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
 437                        union ib_gid *mgid);
 438 int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
 439                        union ib_gid *mgid);
 440
 441 int ipoib_init_qp(struct net_device *dev);
 442 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
 443 void ipoib_transport_dev_cleanup(struct net_device *dev);
 444
 445 void ipoib_event(struct ib_event_handler *handler,
 446                  struct ib_event *record);
 447
 448 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
 449 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
 450
 451 void ipoib_pkey_poll(struct work_struct *work);
 452 int ipoib_pkey_dev_delay_open(struct net_device *dev);
 453 void ipoib_drain_cq(struct net_device *dev);
 454
 455 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 456
 457 #define IPOIB_FLAGS_RC          0x80
 458 #define IPOIB_FLAGS_UC          0x40
 459
 460 /* We don't support UC connections at the moment */
 461 #define IPOIB_CM_SUPPORTED(ha)   (ha[0] & (IPOIB_FLAGS_RC))
 462
 463 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
 464 {
 465         struct ipoib_dev_priv *priv = netdev_priv(dev);
 466         return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
 467                 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
 468 }
 469
 470 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
 471 {
 472         struct ipoib_dev_priv *priv = netdev_priv(dev);
 473         return IPOIB_CM_SUPPORTED(n->ha) &&
 474                 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
 475 }
 476
 477 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
 478
 479 {
 480         return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
 481 }
 482
 483 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
 484 {
 485         return neigh->cm;
 486 }
 487
 488 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
 489 {
 490         neigh->cm = tx;
 491 }
 492
 493 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
 494 int ipoib_cm_dev_open(struct net_device *dev);
 495 void ipoib_cm_dev_stop(struct net_device *dev);
 496 int ipoib_cm_dev_init(struct net_device *dev);
 497 int ipoib_cm_add_mode_attr(struct net_device *dev);
 498 void ipoib_cm_dev_cleanup(struct net_device *dev);
 499 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
 500                                     struct ipoib_neigh *neigh);
 501 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
 502 void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
 503                            unsigned int mtu);
 504 void ipoib_cm_handle_rx_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 #endif
 594
 595 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 596 void ipoib_create_debug_files(struct net_device *dev);
 597 void ipoib_delete_debug_files(struct net_device *dev);
 598 int ipoib_register_debugfs(void);
 599 void ipoib_unregister_debugfs(void);
 600 #else
 601 static inline void ipoib_create_debug_files(struct net_device *dev) { }
 602 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
 603 static inline int ipoib_register_debugfs(void) { return 0; }
 604 static inline void ipoib_unregister_debugfs(void) { }
 605 #endif
 606
 607
 608 #define ipoib_printk(level, priv, format, arg...)       \
 609         printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
 610 #define ipoib_warn(priv, format, arg...)                \
 611         ipoib_printk(KERN_WARNING, priv, format , ## arg)
 612
 613 extern int ipoib_sendq_size;
 614 extern int ipoib_recvq_size;
 615
 616 extern struct ib_sa_client ipoib_sa_client;
 617
 618 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 619 extern int ipoib_debug_level;
 620
 621 #define ipoib_dbg(priv, format, arg...)                 \
 622         do {                                            \
 623                 if (ipoib_debug_level > 0)                      \
 624                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 625         } while (0)
 626 #define ipoib_dbg_mcast(priv, format, arg...)           \
 627         do {                                            \
 628                 if (mcast_debug_level > 0)              \
 629                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 630         } while (0)
 631 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 632 #define ipoib_dbg(priv, format, arg...)                 \
 633         do { (void) (priv); } while (0)
 634 #define ipoib_dbg_mcast(priv, format, arg...)           \
 635         do { (void) (priv); } while (0)
 636 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 637
 638 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
 639 #define ipoib_dbg_data(priv, format, arg...)            \
 640         do {                                            \
 641                 if (data_debug_level > 0)               \
 642                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 643         } while (0)
 644 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 645 #define ipoib_dbg_data(priv, format, arg...)            \
 646         do { (void) (priv); } while (0)
 647 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 648
 649
 650 #define IPOIB_GID_FMT           "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
 651                                 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
 652
 653 #define IPOIB_GID_RAW_ARG(gid)  ((u8 *)(gid))[0], \
 654                                 ((u8 *)(gid))[1], \
 655                                 ((u8 *)(gid))[2], \
 656                                 ((u8 *)(gid))[3], \
 657                                 ((u8 *)(gid))[4], \
 658                                 ((u8 *)(gid))[5], \
 659                                 ((u8 *)(gid))[6], \
 660                                 ((u8 *)(gid))[7], \
 661                                 ((u8 *)(gid))[8], \
 662                                 ((u8 *)(gid))[9], \
 663                                 ((u8 *)(gid))[10],\
 664                                 ((u8 *)(gid))[11],\
 665                                 ((u8 *)(gid))[12],\
 666                                 ((u8 *)(gid))[13],\
 667                                 ((u8 *)(gid))[14],\
 668                                 ((u8 *)(gid))[15]
 669
 670 #define IPOIB_GID_ARG(gid)      IPOIB_GID_RAW_ARG((gid).raw)
 671
 672 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
 673
 674 #endif /* _IPOIB_H */