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
  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_CM_OP_SRQ (1ul << 30)
 101 #else
 102 #define IPOIB_CM_OP_SRQ (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_cq        *cq;
 200         struct ib_qp        *qp;
 201         struct list_head     list;
 202         struct net_device   *dev;
 203         struct ipoib_neigh  *neigh;
 204         struct ipoib_path   *path;
 205         struct ipoib_tx_buf *tx_ring;
 206         unsigned             tx_head;
 207         unsigned             tx_tail;
 208         unsigned long        flags;
 209         u32                  mtu;
 210         struct ib_wc         ibwc[IPOIB_NUM_WC];
 211 };
 212
 213 struct ipoib_cm_rx_buf {
 214         struct sk_buff *skb;
 215         u64 mapping[IPOIB_CM_RX_SG];
 216 };
 217
 218 struct ipoib_cm_dev_priv {
 219         struct ib_srq          *srq;
 220         struct ipoib_cm_rx_buf *srq_ring;
 221         struct ib_cm_id        *id;
 222         struct list_head        passive_ids;   /* state: LIVE */
 223         struct list_head        rx_error_list; /* state: ERROR */
 224         struct list_head        rx_flush_list; /* state: FLUSH, drain not started */
 225         struct list_head        rx_drain_list; /* state: FLUSH, drain started */
 226         struct list_head        rx_reap_list;  /* state: FLUSH, drain done */
 227         struct work_struct      start_task;
 228         struct work_struct      reap_task;
 229         struct work_struct      skb_task;
 230         struct work_struct      rx_reap_task;
 231         struct delayed_work     stale_task;
 232         struct sk_buff_head     skb_queue;
 233         struct list_head        start_list;
 234         struct list_head        reap_list;
 235         struct ib_wc            ibwc[IPOIB_NUM_WC];
 236         struct ib_sge           rx_sge[IPOIB_CM_RX_SG];
 237         struct ib_recv_wr       rx_wr;
 238 };
 239
 240 /*
 241  * Device private locking: tx_lock protects members used in TX fast
 242  * path (and we use LLTX so upper layers don't do extra locking).
 243  * lock protects everything else.  lock nests inside of tx_lock (ie
 244  * tx_lock must be acquired first if needed).
 245  */
 246 struct ipoib_dev_priv {
 247         spinlock_t lock;
 248
 249         struct net_device *dev;
 250
 251         unsigned long flags;
 252
 253         struct mutex mcast_mutex;
 254         struct mutex vlan_mutex;
 255
 256         struct rb_root  path_tree;
 257         struct list_head path_list;
 258
 259         struct ipoib_mcast *broadcast;
 260         struct list_head multicast_list;
 261         struct rb_root multicast_tree;
 262
 263         struct delayed_work pkey_poll_task;
 264         struct delayed_work mcast_task;
 265         struct work_struct flush_task;
 266         struct work_struct restart_task;
 267         struct delayed_work ah_reap_task;
 268         struct work_struct pkey_event_task;
 269
 270         struct ib_device *ca;
 271         u8                port;
 272         u16               pkey;
 273         u16               pkey_index;
 274         struct ib_pd     *pd;
 275         struct ib_mr     *mr;
 276         struct ib_cq     *cq;
 277         struct ib_qp     *qp;
 278         u32               qkey;
 279
 280         union ib_gid local_gid;
 281         u16          local_lid;
 282
 283         unsigned int admin_mtu;
 284         unsigned int mcast_mtu;
 285
 286         struct ipoib_rx_buf *rx_ring;
 287
 288         spinlock_t           tx_lock;
 289         struct ipoib_tx_buf *tx_ring;
 290         unsigned             tx_head;
 291         unsigned             tx_tail;
 292         struct ib_sge        tx_sge;
 293         struct ib_send_wr    tx_wr;
 294
 295         struct ib_wc ibwc[IPOIB_NUM_WC];
 296
 297         struct list_head dead_ahs;
 298
 299         struct ib_event_handler event_handler;
 300
 301         struct net_device_stats stats;
 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 net_device *dev, 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
 388 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 389                 struct ipoib_ah *address, u32 qpn);
 390 void ipoib_reap_ah(struct work_struct *work);
 391
 392 void ipoib_flush_paths(struct net_device *dev);
 393 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
 394
 395 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 396 void ipoib_ib_dev_flush(struct work_struct *work);
 397 void ipoib_pkey_event(struct work_struct *work);
 398 void ipoib_ib_dev_cleanup(struct net_device *dev);
 399
 400 int ipoib_ib_dev_open(struct net_device *dev);
 401 int ipoib_ib_dev_up(struct net_device *dev);
 402 int ipoib_ib_dev_down(struct net_device *dev, int flush);
 403 int ipoib_ib_dev_stop(struct net_device *dev, int flush);
 404
 405 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
 406 void ipoib_dev_cleanup(struct net_device *dev);
 407
 408 void ipoib_mcast_join_task(struct work_struct *work);
 409 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
 410
 411 void ipoib_mcast_restart_task(struct work_struct *work);
 412 int ipoib_mcast_start_thread(struct net_device *dev);
 413 int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
 414
 415 void ipoib_mcast_dev_down(struct net_device *dev);
 416 void ipoib_mcast_dev_flush(struct net_device *dev);
 417
 418 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 419 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
 420 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
 421 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
 422                                   union ib_gid *gid,
 423                                   unsigned long *created,
 424                                   unsigned int *queuelen,
 425                                   unsigned int *complete,
 426                                   unsigned int *send_only);
 427
 428 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
 429 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
 430 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
 431                           struct ipoib_path *path);
 432 #endif
 433
 434 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
 435                        union ib_gid *mgid);
 436 int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
 437                        union ib_gid *mgid);
 438
 439 int ipoib_init_qp(struct net_device *dev);
 440 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
 441 void ipoib_transport_dev_cleanup(struct net_device *dev);
 442
 443 void ipoib_event(struct ib_event_handler *handler,
 444                  struct ib_event *record);
 445
 446 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
 447 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
 448
 449 void ipoib_pkey_poll(struct work_struct *work);
 450 int ipoib_pkey_dev_delay_open(struct net_device *dev);
 451 void ipoib_drain_cq(struct net_device *dev);
 452
 453 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 454
 455 #define IPOIB_FLAGS_RC          0x80
 456 #define IPOIB_FLAGS_UC          0x40
 457
 458 /* We don't support UC connections at the moment */
 459 #define IPOIB_CM_SUPPORTED(ha)   (ha[0] & (IPOIB_FLAGS_RC))
 460
 461 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
 462 {
 463         struct ipoib_dev_priv *priv = netdev_priv(dev);
 464         return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
 465                 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
 466 }
 467
 468 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
 469 {
 470         struct ipoib_dev_priv *priv = netdev_priv(dev);
 471         return IPOIB_CM_SUPPORTED(n->ha) &&
 472                 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
 473 }
 474
 475 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
 476
 477 {
 478         return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
 479 }
 480
 481 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
 482 {
 483         return neigh->cm;
 484 }
 485
 486 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
 487 {
 488         neigh->cm = tx;
 489 }
 490
 491 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
 492 int ipoib_cm_dev_open(struct net_device *dev);
 493 void ipoib_cm_dev_stop(struct net_device *dev);
 494 int ipoib_cm_dev_init(struct net_device *dev);
 495 int ipoib_cm_add_mode_attr(struct net_device *dev);
 496 void ipoib_cm_dev_cleanup(struct net_device *dev);
 497 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
 498                                     struct ipoib_neigh *neigh);
 499 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
 500 void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
 501                            unsigned int mtu);
 502 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
 503 #else
 504
 505 struct ipoib_cm_tx;
 506
 507 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
 508 {
 509         return 0;
 510 }
 511 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
 512
 513 {
 514         return 0;
 515 }
 516
 517 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
 518
 519 {
 520         return 0;
 521 }
 522
 523 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
 524 {
 525         return NULL;
 526 }
 527
 528 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
 529 {
 530 }
 531
 532 static inline
 533 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
 534 {
 535         return;
 536 }
 537
 538 static inline
 539 int ipoib_cm_dev_open(struct net_device *dev)
 540 {
 541         return 0;
 542 }
 543
 544 static inline
 545 void ipoib_cm_dev_stop(struct net_device *dev)
 546 {
 547         return;
 548 }
 549
 550 static inline
 551 int ipoib_cm_dev_init(struct net_device *dev)
 552 {
 553         return -ENOSYS;
 554 }
 555
 556 static inline
 557 void ipoib_cm_dev_cleanup(struct net_device *dev)
 558 {
 559         return;
 560 }
 561
 562 static inline
 563 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
 564                                     struct ipoib_neigh *neigh)
 565 {
 566         return NULL;
 567 }
 568
 569 static inline
 570 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
 571 {
 572         return;
 573 }
 574
 575 static inline
 576 int ipoib_cm_add_mode_attr(struct net_device *dev)
 577 {
 578         return 0;
 579 }
 580
 581 static inline void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
 582                                          unsigned int mtu)
 583 {
 584         dev_kfree_skb_any(skb);
 585 }
 586
 587 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 588 {
 589 }
 590
 591 #endif
 592
 593 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 594 void ipoib_create_debug_files(struct net_device *dev);
 595 void ipoib_delete_debug_files(struct net_device *dev);
 596 int ipoib_register_debugfs(void);
 597 void ipoib_unregister_debugfs(void);
 598 #else
 599 static inline void ipoib_create_debug_files(struct net_device *dev) { }
 600 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
 601 static inline int ipoib_register_debugfs(void) { return 0; }
 602 static inline void ipoib_unregister_debugfs(void) { }
 603 #endif
 604
 605
 606 #define ipoib_printk(level, priv, format, arg...)       \
 607         printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
 608 #define ipoib_warn(priv, format, arg...)                \
 609         ipoib_printk(KERN_WARNING, priv, format , ## arg)
 610
 611 extern int ipoib_sendq_size;
 612 extern int ipoib_recvq_size;
 613
 614 extern struct ib_sa_client ipoib_sa_client;
 615
 616 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
 617 extern int ipoib_debug_level;
 618
 619 #define ipoib_dbg(priv, format, arg...)                 \
 620         do {                                            \
 621                 if (ipoib_debug_level > 0)                      \
 622                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 623         } while (0)
 624 #define ipoib_dbg_mcast(priv, format, arg...)           \
 625         do {                                            \
 626                 if (mcast_debug_level > 0)              \
 627                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 628         } while (0)
 629 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 630 #define ipoib_dbg(priv, format, arg...)                 \
 631         do { (void) (priv); } while (0)
 632 #define ipoib_dbg_mcast(priv, format, arg...)           \
 633         do { (void) (priv); } while (0)
 634 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
 635
 636 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
 637 #define ipoib_dbg_data(priv, format, arg...)            \
 638         do {                                            \
 639                 if (data_debug_level > 0)               \
 640                         ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
 641         } while (0)
 642 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 643 #define ipoib_dbg_data(priv, format, arg...)            \
 644         do { (void) (priv); } while (0)
 645 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
 646
 647
 648 #define IPOIB_GID_FMT           "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
 649                                 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
 650
 651 #define IPOIB_GID_RAW_ARG(gid)  ((u8 *)(gid))[0], \
 652                                 ((u8 *)(gid))[1], \
 653                                 ((u8 *)(gid))[2], \
 654                                 ((u8 *)(gid))[3], \
 655                                 ((u8 *)(gid))[4], \
 656                                 ((u8 *)(gid))[5], \
 657                                 ((u8 *)(gid))[6], \
 658                                 ((u8 *)(gid))[7], \
 659                                 ((u8 *)(gid))[8], \
 660                                 ((u8 *)(gid))[9], \
 661                                 ((u8 *)(gid))[10],\
 662                                 ((u8 *)(gid))[11],\
 663                                 ((u8 *)(gid))[12],\
 664                                 ((u8 *)(gid))[13],\
 665                                 ((u8 *)(gid))[14],\
 666                                 ((u8 *)(gid))[15]
 667
 668 #define IPOIB_GID_ARG(gid)      IPOIB_GID_RAW_ARG((gid).raw)
 669
 670 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
 671
 672 #endif /* _IPOIB_H */