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.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
38 #include <linux/list.h>
39 #include <linux/skbuff.h>
40 #include <linux/netdevice.h>
41 #include <linux/workqueue.h>
42 #include <linux/kref.h>
43 #include <linux/if_infiniband.h>
44 #include <linux/mutex.h>
46 #include <net/neighbour.h>
47 #include <net/sch_generic.h>
49 #include <linux/atomic.h>
51 #include <rdma/ib_verbs.h>
52 #include <rdma/ib_pack.h>
53 #include <rdma/ib_sa.h>
54 #include <linux/sched.h>
58 enum ipoib_flush_level {
67 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
68 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
70 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
71 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
72 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
73 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
74 IPOIB_RX_RING_SIZE = 256,
75 IPOIB_TX_RING_SIZE = 128,
76 IPOIB_MAX_QUEUE_SIZE = 8192,
77 IPOIB_MIN_QUEUE_SIZE = 2,
78 IPOIB_CM_MAX_CONN_QP = 4096,
82 IPOIB_MAX_PATH_REC_QUEUE = 3,
83 IPOIB_MAX_MCAST_QUEUE = 3,
85 IPOIB_FLAG_OPER_UP = 0,
86 IPOIB_FLAG_INITIALIZED = 1,
87 IPOIB_FLAG_ADMIN_UP = 2,
88 IPOIB_PKEY_ASSIGNED = 3,
89 IPOIB_FLAG_SUBINTERFACE = 5,
91 IPOIB_STOP_REAPER = 7,
92 IPOIB_FLAG_ADMIN_CM = 9,
93 IPOIB_FLAG_UMCAST = 10,
94 IPOIB_STOP_NEIGH_GC = 11,
95 IPOIB_NEIGH_TBL_FLUSH = 12,
97 IPOIB_MAX_BACKOFF_SECONDS = 16,
99 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
100 IPOIB_MCAST_FLAG_SENDONLY = 1,
102 * For IPOIB_MCAST_FLAG_BUSY
103 * When set, in flight join and mcast->mc is unreliable
104 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
105 * haven't started yet
106 * When clear and mcast->mc is valid pointer, join was successful
108 IPOIB_MCAST_FLAG_BUSY = 2,
109 IPOIB_MCAST_FLAG_ATTACHED = 3,
112 IPOIB_CM_COPYBREAK = 256,
115 IPOIB_LEGACY_CHILD = 1,
116 IPOIB_RTNL_CHILD = 2,
119 #define IPOIB_OP_RECV (1ul << 31)
120 #ifdef CONFIG_INFINIBAND_IPOIB_CM
121 #define IPOIB_OP_CM (1ul << 30)
123 #define IPOIB_OP_CM (0)
126 #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
130 struct ipoib_header {
136 struct qdisc_skb_cb qdisc_cb;
137 u8 hwaddr[INFINIBAND_ALEN];
140 static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb)
142 BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb));
143 return (struct ipoib_cb *)skb->cb;
146 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
148 struct ib_sa_mcmember_rec mcmember;
149 struct ib_sa_multicast *mc;
152 struct rb_node rb_node;
153 struct list_head list;
155 unsigned long created;
156 unsigned long backoff;
157 unsigned long delay_until;
160 unsigned char logcount;
162 struct list_head neigh_list;
164 struct sk_buff_head pkt_queue;
166 struct net_device *dev;
167 struct completion done;
170 struct ipoib_rx_buf {
172 u64 mapping[IPOIB_UD_RX_SG];
175 struct ipoib_tx_buf {
177 u64 mapping[MAX_SKB_FRAGS + 1];
180 struct ipoib_cm_tx_buf {
187 struct ipoib_cm_data {
188 __be32 qpn; /* High byte MUST be ignored on receive */
193 * Quoting 10.3.1 Queue Pair and EE Context States:
195 * Note, for QPs that are associated with an SRQ, the Consumer should take the
196 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
197 * Reset State. The Consumer may invoke the Destroy QP without first performing
198 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
199 * Last WQE Reached Event. However, if the Consumer does not wait for the
200 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
201 * leakage may occur. Therefore, it is good programming practice to tear down a
202 * QP that is associated with an SRQ by using the following process:
204 * - Put the QP in the Error State
205 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
207 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
208 * to be empty or the number of Poll CQ operations has exceeded
211 * post another WR that completes on the same CQ and wait for this
212 * WR to return as a WC;
213 * - and then invoke a Destroy QP or Reset QP.
215 * We use the second option and wait for a completion on the
216 * same CQ before destroying QPs attached to our SRQ.
219 enum ipoib_cm_state {
221 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
222 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
228 struct ipoib_cm_rx_buf *rx_ring;
229 struct list_head list;
230 struct net_device *dev;
231 unsigned long jiffies;
232 enum ipoib_cm_state state;
239 struct list_head list;
240 struct net_device *dev;
241 struct ipoib_neigh *neigh;
242 struct ipoib_path *path;
243 struct ipoib_cm_tx_buf *tx_ring;
250 struct ipoib_cm_rx_buf {
252 u64 mapping[IPOIB_CM_RX_SG];
255 struct ipoib_cm_dev_priv {
257 struct ipoib_cm_rx_buf *srq_ring;
259 struct list_head passive_ids; /* state: LIVE */
260 struct list_head rx_error_list; /* state: ERROR */
261 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
262 struct list_head rx_drain_list; /* state: FLUSH, drain started */
263 struct list_head rx_reap_list; /* state: FLUSH, drain done */
264 struct work_struct start_task;
265 struct work_struct reap_task;
266 struct work_struct skb_task;
267 struct work_struct rx_reap_task;
268 struct delayed_work stale_task;
269 struct sk_buff_head skb_queue;
270 struct list_head start_list;
271 struct list_head reap_list;
272 struct ib_wc ibwc[IPOIB_NUM_WC];
273 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
274 struct ib_recv_wr rx_wr;
280 struct ipoib_ethtool_st {
282 u16 max_coalesced_frames;
285 struct ipoib_neigh_table;
287 struct ipoib_neigh_hash {
288 struct ipoib_neigh_table *ntbl;
289 struct ipoib_neigh __rcu **buckets;
295 struct ipoib_neigh_table {
296 struct ipoib_neigh_hash __rcu *htbl;
298 struct completion flushed;
299 struct completion deleted;
303 * Device private locking: network stack tx_lock protects members used
304 * in TX fast path, lock protects everything else. lock nests inside
305 * of tx_lock (ie tx_lock must be acquired first if needed).
307 struct ipoib_dev_priv {
310 struct net_device *dev;
312 struct napi_struct napi;
316 struct rw_semaphore vlan_rwsem;
318 struct rb_root path_tree;
319 struct list_head path_list;
321 struct ipoib_neigh_table ntbl;
323 struct ipoib_mcast *broadcast;
324 struct list_head multicast_list;
325 struct rb_root multicast_tree;
327 struct workqueue_struct *wq;
328 struct delayed_work mcast_task;
329 struct work_struct carrier_on_task;
330 struct work_struct flush_light;
331 struct work_struct flush_normal;
332 struct work_struct flush_heavy;
333 struct work_struct restart_task;
334 struct delayed_work ah_reap_task;
335 struct delayed_work neigh_reap_task;
336 struct ib_device *ca;
342 struct ib_cq *recv_cq;
343 struct ib_cq *send_cq;
347 union ib_gid local_gid;
350 unsigned int admin_mtu;
351 unsigned int mcast_mtu;
352 unsigned int max_ib_mtu;
354 struct ipoib_rx_buf *rx_ring;
356 struct ipoib_tx_buf *tx_ring;
359 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
360 struct ib_send_wr tx_wr;
361 unsigned tx_outstanding;
362 struct ib_wc send_wc[MAX_SEND_CQE];
364 struct ib_recv_wr rx_wr;
365 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
367 struct ib_wc ibwc[IPOIB_NUM_WC];
369 struct list_head dead_ahs;
371 struct ib_event_handler event_handler;
373 struct net_device *parent;
374 struct list_head child_intfs;
375 struct list_head list;
378 #ifdef CONFIG_INFINIBAND_IPOIB_CM
379 struct ipoib_cm_dev_priv cm;
382 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
383 struct list_head fs_list;
384 struct dentry *mcg_dentry;
385 struct dentry *path_dentry;
388 struct ipoib_ethtool_st ethtool;
389 struct timer_list poll_timer;
393 struct net_device *dev;
395 struct list_head list;
401 struct net_device *dev;
402 struct ib_sa_path_rec pathrec;
404 struct sk_buff_head queue;
406 struct list_head neigh_list;
409 struct ib_sa_query *query;
410 struct completion done;
412 struct rb_node rb_node;
413 struct list_head list;
419 #ifdef CONFIG_INFINIBAND_IPOIB_CM
420 struct ipoib_cm_tx *cm;
422 u8 daddr[INFINIBAND_ALEN];
423 struct sk_buff_head queue;
425 struct net_device *dev;
427 struct list_head list;
428 struct ipoib_neigh __rcu *hnext;
434 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
435 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
437 static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
439 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
442 void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
443 static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
445 if (atomic_dec_and_test(&neigh->refcnt))
446 ipoib_neigh_dtor(neigh);
448 struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
449 struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
450 struct net_device *dev);
451 void ipoib_neigh_free(struct ipoib_neigh *neigh);
452 void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
454 extern struct workqueue_struct *ipoib_workqueue;
458 int ipoib_poll(struct napi_struct *napi, int budget);
459 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
460 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
462 struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
463 struct ib_pd *pd, struct ib_ah_attr *attr);
464 void ipoib_free_ah(struct kref *kref);
465 static inline void ipoib_put_ah(struct ipoib_ah *ah)
467 kref_put(&ah->ref, ipoib_free_ah);
469 int ipoib_open(struct net_device *dev);
470 int ipoib_add_pkey_attr(struct net_device *dev);
471 int ipoib_add_umcast_attr(struct net_device *dev);
473 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
474 struct ipoib_ah *address, u32 qpn);
475 void ipoib_reap_ah(struct work_struct *work);
477 void ipoib_mark_paths_invalid(struct net_device *dev);
478 void ipoib_flush_paths(struct net_device *dev);
479 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
481 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
482 void ipoib_ib_dev_flush_light(struct work_struct *work);
483 void ipoib_ib_dev_flush_normal(struct work_struct *work);
484 void ipoib_ib_dev_flush_heavy(struct work_struct *work);
485 void ipoib_pkey_event(struct work_struct *work);
486 void ipoib_ib_dev_cleanup(struct net_device *dev);
488 int ipoib_ib_dev_open(struct net_device *dev);
489 int ipoib_ib_dev_up(struct net_device *dev);
490 int ipoib_ib_dev_down(struct net_device *dev);
491 int ipoib_ib_dev_stop(struct net_device *dev);
492 void ipoib_pkey_dev_check_presence(struct net_device *dev);
494 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
495 void ipoib_dev_cleanup(struct net_device *dev);
497 void ipoib_mcast_join_task(struct work_struct *work);
498 void ipoib_mcast_carrier_on_task(struct work_struct *work);
499 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
501 void ipoib_mcast_restart_task(struct work_struct *work);
502 int ipoib_mcast_start_thread(struct net_device *dev);
503 int ipoib_mcast_stop_thread(struct net_device *dev);
505 void ipoib_mcast_dev_down(struct net_device *dev);
506 void ipoib_mcast_dev_flush(struct net_device *dev);
508 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
509 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
510 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
511 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
513 unsigned long *created,
514 unsigned int *queuelen,
515 unsigned int *complete,
516 unsigned int *send_only);
518 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
519 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
520 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
521 struct ipoib_path *path);
524 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
525 union ib_gid *mgid, int set_qkey);
527 int ipoib_init_qp(struct net_device *dev);
528 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
529 void ipoib_transport_dev_cleanup(struct net_device *dev);
531 void ipoib_event(struct ib_event_handler *handler,
532 struct ib_event *record);
534 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
535 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
537 int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
538 u16 pkey, int child_type);
540 int __init ipoib_netlink_init(void);
541 void __exit ipoib_netlink_fini(void);
543 void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
544 int ipoib_set_mode(struct net_device *dev, const char *buf);
546 void ipoib_setup(struct net_device *dev);
548 void ipoib_pkey_open(struct ipoib_dev_priv *priv);
549 void ipoib_drain_cq(struct net_device *dev);
551 void ipoib_set_ethtool_ops(struct net_device *dev);
552 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
554 #define IPOIB_FLAGS_RC 0x80
555 #define IPOIB_FLAGS_UC 0x40
557 /* We don't support UC connections at the moment */
558 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
560 #ifdef CONFIG_INFINIBAND_IPOIB_CM
562 extern int ipoib_max_conn_qp;
564 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
566 struct ipoib_dev_priv *priv = netdev_priv(dev);
567 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
568 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
571 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
573 struct ipoib_dev_priv *priv = netdev_priv(dev);
574 return IPOIB_CM_SUPPORTED(hwaddr) &&
575 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
578 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
581 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
584 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
589 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
594 static inline int ipoib_cm_has_srq(struct net_device *dev)
596 struct ipoib_dev_priv *priv = netdev_priv(dev);
597 return !!priv->cm.srq;
600 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
602 struct ipoib_dev_priv *priv = netdev_priv(dev);
603 return priv->cm.max_cm_mtu;
606 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
607 int ipoib_cm_dev_open(struct net_device *dev);
608 void ipoib_cm_dev_stop(struct net_device *dev);
609 int ipoib_cm_dev_init(struct net_device *dev);
610 int ipoib_cm_add_mode_attr(struct net_device *dev);
611 void ipoib_cm_dev_cleanup(struct net_device *dev);
612 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
613 struct ipoib_neigh *neigh);
614 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
615 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
617 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
618 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
623 #define ipoib_max_conn_qp 0
625 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
629 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
635 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
641 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
646 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
650 static inline int ipoib_cm_has_srq(struct net_device *dev)
655 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
661 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
667 int ipoib_cm_dev_open(struct net_device *dev)
673 void ipoib_cm_dev_stop(struct net_device *dev)
679 int ipoib_cm_dev_init(struct net_device *dev)
685 void ipoib_cm_dev_cleanup(struct net_device *dev)
691 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
692 struct ipoib_neigh *neigh)
698 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
704 int ipoib_cm_add_mode_attr(struct net_device *dev)
709 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
712 dev_kfree_skb_any(skb);
715 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
719 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
724 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
725 void ipoib_create_debug_files(struct net_device *dev);
726 void ipoib_delete_debug_files(struct net_device *dev);
727 int ipoib_register_debugfs(void);
728 void ipoib_unregister_debugfs(void);
730 static inline void ipoib_create_debug_files(struct net_device *dev) { }
731 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
732 static inline int ipoib_register_debugfs(void) { return 0; }
733 static inline void ipoib_unregister_debugfs(void) { }
736 #define ipoib_printk(level, priv, format, arg...) \
737 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
738 #define ipoib_warn(priv, format, arg...) \
739 ipoib_printk(KERN_WARNING, priv, format , ## arg)
741 extern int ipoib_sendq_size;
742 extern int ipoib_recvq_size;
744 extern struct ib_sa_client ipoib_sa_client;
746 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
747 extern int ipoib_debug_level;
749 #define ipoib_dbg(priv, format, arg...) \
751 if (ipoib_debug_level > 0) \
752 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
754 #define ipoib_dbg_mcast(priv, format, arg...) \
756 if (mcast_debug_level > 0) \
757 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
759 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
760 #define ipoib_dbg(priv, format, arg...) \
761 do { (void) (priv); } while (0)
762 #define ipoib_dbg_mcast(priv, format, arg...) \
763 do { (void) (priv); } while (0)
764 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
766 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
767 #define ipoib_dbg_data(priv, format, arg...) \
769 if (data_debug_level > 0) \
770 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
772 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
773 #define ipoib_dbg_data(priv, format, arg...) \
774 do { (void) (priv); } while (0)
775 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
777 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
779 extern const char ipoib_driver_version[];
781 #endif /* _IPOIB_H */