2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
4 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
5 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
8 * This software is available to you under a choice of one of two
9 * licenses. You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * OpenIB.org BSD license below:
14 * Redistribution and use in source and binary forms, with or
15 * without modification, are permitted provided that the following
18 * - Redistributions of source code must retain the above
19 * copyright notice, this list of conditions and the following
22 * - Redistributions in binary form must reproduce the above
23 * copyright notice, this list of conditions and the following
24 * disclaimer in the documentation and/or other materials
25 * provided with the distribution.
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
42 #define LINUXKPI_PARAM_PREFIX ipoib_
45 #include "opt_inet6.h"
48 #include <sys/param.h>
49 #include <sys/systm.h>
50 #include <sys/kernel.h>
52 #include <sys/malloc.h>
54 #include <sys/random.h>
55 #include <sys/rwlock.h>
56 #include <sys/socket.h>
57 #include <sys/sockio.h>
58 #include <sys/sysctl.h>
61 #include <net/if_var.h>
62 #include <net/if_arp.h>
63 #include <net/netisr.h>
64 #include <net/route.h>
65 #include <net/if_llc.h>
66 #include <net/if_dl.h>
67 #include <net/if_types.h>
69 #include <net/if_llatbl.h>
72 #if defined(INET) || defined(INET6)
73 #include <netinet/in.h>
74 #include <netinet/in_var.h>
75 #include <netinet/if_ether.h>
76 #include <netinet/ip_var.h>
79 #include <netinet6/nd6.h>
82 #include <security/mac/mac_framework.h>
84 #include <linux/list.h>
86 #include <linux/workqueue.h>
87 #include <linux/kref.h>
88 #include <linux/mutex.h>
89 #include <linux/rbtree.h>
91 #include <asm/atomic.h>
93 #include <rdma/ib_verbs.h>
94 #include <rdma/ib_pack.h>
95 #include <rdma/ib_sa.h>
99 #define INFINIBAND_ALEN 20 /* Octets in IPoIB HW addr */
102 #define CONFIG_INFINIBAND_IPOIB_CM
106 #define CONFIG_INFINIBAND_IPOIB_DEBUG
107 #define CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
110 enum ipoib_flush_level {
118 IPOIB_HEADER_LEN = IPOIB_ENCAP_LEN + INFINIBAND_ALEN,
119 IPOIB_UD_MAX_MTU = 4 * 1024,
120 // IPOIB_UD_RX_SG = (IPOIB_UD_MAX_MTU / MJUMPAGESIZE),
122 IPOIB_UD_TX_SG = (IPOIB_UD_MAX_MTU / MCLBYTES) + 2,
123 IPOIB_CM_MAX_MTU = (64 * 1024),
124 IPOIB_CM_TX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2,
125 IPOIB_CM_RX_SG = (IPOIB_CM_MAX_MTU / MJUMPAGESIZE),
126 IPOIB_RX_RING_SIZE = 256,
127 IPOIB_TX_RING_SIZE = 128,
128 IPOIB_MAX_RX_SG = MAX(IPOIB_CM_RX_SG, IPOIB_UD_RX_SG),
129 IPOIB_MAX_TX_SG = MAX(IPOIB_CM_TX_SG, IPOIB_UD_TX_SG),
130 IPOIB_MAX_QUEUE_SIZE = 8192,
131 IPOIB_MIN_QUEUE_SIZE = 2,
132 IPOIB_CM_MAX_CONN_QP = 4096,
136 IPOIB_MAX_PATH_REC_QUEUE = 3,
137 IPOIB_MAX_MCAST_QUEUE = 3,
139 IPOIB_FLAG_OPER_UP = 0,
140 IPOIB_FLAG_INITIALIZED = 1,
141 IPOIB_FLAG_ADMIN_UP = 2,
142 IPOIB_PKEY_ASSIGNED = 3,
144 IPOIB_FLAG_SUBINTERFACE = 5,
146 IPOIB_STOP_REAPER = 7,
147 IPOIB_FLAG_UMCAST = 10,
148 IPOIB_FLAG_CSUM = 11,
150 IPOIB_MAX_BACKOFF_SECONDS = 16,
152 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
153 IPOIB_MCAST_FLAG_SENDONLY = 1,
154 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
155 IPOIB_MCAST_FLAG_ATTACHED = 3,
157 IPOIB_MAX_LRO_DESCRIPTORS = 8,
158 IPOIB_LRO_MAX_AGGR = 64,
161 IPOIB_CM_COPYBREAK = 256,
164 #define IPOIB_OP_RECV (1ul << 31)
165 #ifdef CONFIG_INFINIBAND_IPOIB_CM
166 #define IPOIB_OP_CM (1ul << 30)
168 #define IPOIB_OP_CM (0)
173 struct ipoib_header {
174 u8 hwaddr[INFINIBAND_ALEN];
179 struct ipoib_pseudoheader {
180 u8 hwaddr[INFINIBAND_ALEN];
183 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
185 struct ib_sa_mcmember_rec mcmember;
186 struct ib_sa_multicast *mc;
189 struct rb_node rb_node;
190 struct list_head list;
192 unsigned long created;
193 unsigned long backoff;
196 unsigned char logcount;
198 struct ifqueue pkt_queue;
200 struct ipoib_dev_priv *priv;
203 struct ipoib_cm_rx_buf {
205 u64 mapping[IPOIB_CM_RX_SG];
208 struct ipoib_cm_tx_buf {
210 u64 mapping[IPOIB_CM_TX_SG];
213 struct ipoib_rx_buf {
215 u64 mapping[IPOIB_UD_RX_SG];
218 struct ipoib_tx_buf {
220 u64 mapping[IPOIB_UD_TX_SG];
225 struct ipoib_cm_data {
226 __be32 qpn; /* High byte MUST be ignored on receive */
231 * Quoting 10.3.1 Queue Pair and EE Context States:
233 * Note, for QPs that are associated with an SRQ, the Consumer should take the
234 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
235 * Reset State. The Consumer may invoke the Destroy QP without first performing
236 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
237 * Last WQE Reached Event. However, if the Consumer does not wait for the
238 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
239 * leakage may occur. Therefore, it is good programming practice to tear down a
240 * QP that is associated with an SRQ by using the following process:
242 * - Put the QP in the Error State
243 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
245 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
246 * to be empty or the number of Poll CQ operations has exceeded
249 * post another WR that completes on the same CQ and wait for this
250 * WR to return as a WC;
251 * - and then invoke a Destroy QP or Reset QP.
253 * We use the second option and wait for a completion on the
254 * same CQ before destroying QPs attached to our SRQ.
257 enum ipoib_cm_state {
259 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
260 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
266 struct ipoib_cm_rx_buf *rx_ring;
267 struct list_head list;
268 struct ipoib_dev_priv *priv;
269 unsigned long jiffies;
270 enum ipoib_cm_state state;
277 struct list_head list;
278 struct ipoib_dev_priv *priv;
279 struct ipoib_path *path;
280 struct ipoib_cm_tx_buf *tx_ring;
284 u32 mtu; /* remote specified mtu, with grh. */
287 struct ipoib_cm_dev_priv {
289 struct ipoib_cm_rx_buf *srq_ring;
291 struct list_head passive_ids; /* state: LIVE */
292 struct list_head rx_error_list; /* state: ERROR */
293 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
294 struct list_head rx_drain_list; /* state: FLUSH, drain started */
295 struct list_head rx_reap_list; /* state: FLUSH, drain done */
296 struct work_struct start_task;
297 struct work_struct reap_task;
298 struct work_struct mb_task;
299 struct work_struct rx_reap_task;
300 struct delayed_work stale_task;
301 struct ifqueue mb_queue;
302 struct list_head start_list;
303 struct list_head reap_list;
304 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
305 struct ib_recv_wr rx_wr;
307 int max_cm_mtu; /* Actual buf size. */
311 struct ipoib_ethtool_st {
313 u16 max_coalesced_frames;
317 * Device private locking: network stack tx_lock protects members used
318 * in TX fast path, lock protects everything else. lock nests inside
319 * of tx_lock (ie tx_lock must be acquired first if needed).
321 struct ipoib_dev_priv {
323 spinlock_t drain_lock;
327 u8 broadcastaddr[INFINIBAND_ALEN];
334 struct mutex vlan_mutex;
336 struct rb_root path_tree;
337 struct list_head path_list;
339 struct ipoib_mcast *broadcast;
340 struct list_head multicast_list;
341 struct rb_root multicast_tree;
343 struct delayed_work pkey_poll_task;
344 struct delayed_work mcast_task;
345 struct work_struct carrier_on_task;
346 struct work_struct flush_light;
347 struct work_struct flush_normal;
348 struct work_struct flush_heavy;
349 struct work_struct restart_task;
350 struct delayed_work ah_reap_task;
352 struct ib_device *ca;
357 struct ib_cq *recv_cq;
358 struct ib_cq *send_cq;
362 union ib_gid local_gid;
365 unsigned int admin_mtu; /* User selected MTU, no GRH. */
366 unsigned int mcast_mtu; /* Minus GRH bytes, from mcast group. */
367 unsigned int max_ib_mtu; /* Without header, actual buf size. */
369 struct ipoib_rx_buf *rx_ring;
371 struct ipoib_tx_buf *tx_ring;
374 struct ib_sge tx_sge[IPOIB_MAX_TX_SG];
375 struct ib_ud_wr tx_wr;
376 unsigned tx_outstanding;
377 struct ib_wc send_wc[MAX_SEND_CQE];
379 struct ib_recv_wr rx_wr;
380 struct ib_sge rx_sge[IPOIB_MAX_RX_SG];
382 struct ib_wc ibwc[IPOIB_NUM_WC];
384 struct list_head dead_ahs;
386 struct ib_event_handler event_handler;
388 struct ifnet *parent;
389 struct list_head child_intfs;
390 struct list_head list;
392 #ifdef CONFIG_INFINIBAND_IPOIB_CM
393 struct ipoib_cm_dev_priv cm;
396 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
397 struct list_head fs_list;
398 struct dentry *mcg_dentry;
399 struct dentry *path_dentry;
402 struct ipoib_ethtool_st ethtool;
403 struct timer_list poll_timer;
407 struct ipoib_dev_priv *priv;
409 struct list_head list;
415 struct ipoib_dev_priv *priv;
416 struct rb_node rb_node;
417 struct list_head list;
418 #ifdef CONFIG_INFINIBAND_IPOIB_CM
419 uint8_t hwaddr[INFINIBAND_ALEN];
420 struct ipoib_cm_tx *cm;
423 struct ib_sa_path_rec pathrec;
424 struct ifqueue queue;
427 struct ib_sa_query *query;
428 struct completion done;
433 /* UD Only transmits encap len but we want the two sizes to be symmetrical. */
434 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
435 #define IPOIB_CM_MTU(ib_mtu) (ib_mtu - 0x10)
437 #define IPOIB_IS_MULTICAST(addr) ((addr)[4] == 0xff)
439 extern struct workqueue_struct *ipoib_workqueue;
441 #define IPOIB_MTAP_PROTO(_ifp, _m, _proto) \
443 if (bpf_peers_present((_ifp)->if_bpf)) { \
445 ipoib_mtap_proto((_ifp), (_m), (_proto)); \
450 void ipoib_mtap_proto(struct ifnet *ifp, struct mbuf *mb, uint16_t proto);
451 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
452 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
454 struct ipoib_ah *ipoib_create_ah(struct ipoib_dev_priv *,
455 struct ib_pd *pd, struct ib_ah_attr *attr);
456 void ipoib_free_ah(struct kref *kref);
457 static inline void ipoib_put_ah(struct ipoib_ah *ah)
459 kref_put(&ah->ref, ipoib_free_ah);
462 int ipoib_open(struct ipoib_dev_priv *priv);
463 int ipoib_add_pkey_attr(struct ipoib_dev_priv *priv);
464 int ipoib_add_umcast_attr(struct ipoib_dev_priv *priv);
466 void ipoib_demux(struct ifnet *ifp, struct mbuf *m, u_short proto);
468 void ipoib_send(struct ipoib_dev_priv *priv, struct mbuf *mb,
469 struct ipoib_ah *address, u32 qpn);
470 void ipoib_reap_ah(struct work_struct *work);
472 void ipoib_mark_paths_invalid(struct ipoib_dev_priv *priv);
473 void ipoib_flush_paths(struct ipoib_dev_priv *priv);
474 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
476 int ipoib_ib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca,
478 void ipoib_ib_dev_flush_light(struct work_struct *work);
479 void ipoib_ib_dev_flush_normal(struct work_struct *work);
480 void ipoib_ib_dev_flush_heavy(struct work_struct *work);
481 void ipoib_pkey_event(struct work_struct *work);
482 void ipoib_ib_dev_cleanup(struct ipoib_dev_priv *priv);
484 int ipoib_ib_dev_open(struct ipoib_dev_priv *priv);
485 int ipoib_ib_dev_up(struct ipoib_dev_priv *priv);
486 int ipoib_ib_dev_down(struct ipoib_dev_priv *priv, int flush);
487 int ipoib_ib_dev_stop(struct ipoib_dev_priv *priv, int flush);
489 int ipoib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port);
490 void ipoib_dev_cleanup(struct ipoib_dev_priv *priv);
492 void ipoib_mcast_join_task(struct work_struct *work);
493 void ipoib_mcast_carrier_on_task(struct work_struct *work);
494 void ipoib_mcast_send(struct ipoib_dev_priv *priv, void *mgid, struct mbuf *mb);
496 void ipoib_mcast_restart_task(struct work_struct *work);
497 void ipoib_mcast_restart(struct ipoib_dev_priv *);
498 int ipoib_mcast_start_thread(struct ipoib_dev_priv *priv);
499 int ipoib_mcast_stop_thread(struct ipoib_dev_priv *priv, int flush);
501 void ipoib_mcast_dev_down(struct ipoib_dev_priv *priv);
502 void ipoib_mcast_dev_flush(struct ipoib_dev_priv *priv);
504 void ipoib_path_free(struct ipoib_dev_priv *priv, struct ipoib_path *path);
505 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
506 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct ipoib_dev_priv *priv);
507 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
508 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
510 unsigned long *created,
511 unsigned int *queuelen,
512 unsigned int *complete,
513 unsigned int *send_only);
515 struct ipoib_path_iter *ipoib_path_iter_init(struct ipoib_dev_priv *priv);
516 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
517 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
518 struct ipoib_path *path);
521 int ipoib_change_mtu(struct ipoib_dev_priv *priv, int new_mtu);
523 int ipoib_mcast_attach(struct ipoib_dev_priv *priv, u16 mlid,
524 union ib_gid *mgid, int set_qkey);
526 int ipoib_init_qp(struct ipoib_dev_priv *priv);
527 int ipoib_transport_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca);
528 void ipoib_transport_dev_cleanup(struct ipoib_dev_priv *priv);
530 void ipoib_event(struct ib_event_handler *handler,
531 struct ib_event *record);
533 void ipoib_pkey_poll(struct work_struct *work);
534 int ipoib_pkey_dev_delay_open(struct ipoib_dev_priv *priv);
535 void ipoib_drain_cq(struct ipoib_dev_priv *priv);
537 int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req, int max);
538 void ipoib_dma_unmap_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);
539 int ipoib_poll_tx(struct ipoib_dev_priv *priv);
541 void ipoib_dma_unmap_rx(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req);
542 void ipoib_dma_mb(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int length);
543 struct mbuf *ipoib_alloc_map_mb(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req, int size);
546 void ipoib_set_ethtool_ops(struct ifnet *dev);
547 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
549 #ifdef CONFIG_INFINIBAND_IPOIB_CM
551 #define IPOIB_FLAGS_RC 0x80
552 #define IPOIB_FLAGS_UC 0x40
554 /* We don't support UC connections at the moment */
555 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
557 extern int ipoib_max_conn_qp;
559 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv)
561 return IPOIB_CM_SUPPORTED(IF_LLADDR(priv->dev));
564 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
566 return IPOIB_CM_SUPPORTED(hwaddr);
569 static inline int ipoib_cm_up(struct ipoib_path *path)
572 return test_bit(IPOIB_FLAG_OPER_UP, &path->cm->flags);
575 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path)
580 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx)
585 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv)
587 return !!priv->cm.srq;
590 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv)
592 return priv->cm.max_cm_mtu;
595 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx);
596 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv);
597 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv);
598 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv);
599 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv);
600 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv);
601 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv,
602 struct ipoib_path *path);
603 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
604 void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb,
606 void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc);
607 void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc);
612 #define ipoib_max_conn_qp 0
614 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv)
618 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr)
624 static inline int ipoib_cm_up(struct ipoib_path *path)
630 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path)
635 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx)
639 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv)
644 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv)
650 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx)
656 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv)
662 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv)
668 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv)
674 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv)
680 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, struct ipoib_path *path)
686 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
692 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv)
697 static inline void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb,
703 static inline void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc)
707 static inline void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc)
712 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
713 void ipoib_create_debug_files(struct ipoib_dev_priv *priv);
714 void ipoib_delete_debug_files(struct ipoib_dev_priv *priv);
715 int ipoib_register_debugfs(void);
716 void ipoib_unregister_debugfs(void);
718 static inline void ipoib_create_debug_files(struct ipoib_dev_priv *priv) { }
719 static inline void ipoib_delete_debug_files(struct ipoib_dev_priv *priv) { }
720 static inline int ipoib_register_debugfs(void) { return 0; }
721 static inline void ipoib_unregister_debugfs(void) { }
724 #define ipoib_printk(level, priv, format, arg...) \
725 printk(level "%s: " format, if_name(((struct ipoib_dev_priv *) priv)->dev), ## arg)
726 #define ipoib_warn(priv, format, arg...) \
727 ipoib_printk(KERN_WARNING, priv, format , ## arg)
729 extern int ipoib_sendq_size;
730 extern int ipoib_recvq_size;
732 extern struct ib_sa_client ipoib_sa_client;
734 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
735 extern int ipoib_debug_level;
737 #define ipoib_dbg(priv, format, arg...) \
739 if (ipoib_debug_level > 0) \
740 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
742 #define ipoib_dbg_mcast(priv, format, arg...) \
744 if (mcast_debug_level > 0) \
745 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
747 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
748 #define ipoib_dbg(priv, format, arg...) \
749 do { (void) (priv); } while (0)
750 #define ipoib_dbg_mcast(priv, format, arg...) \
751 do { (void) (priv); } while (0)
752 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
754 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
755 #define ipoib_dbg_data(priv, format, arg...) \
757 if (data_debug_level > 0) \
758 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
760 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
761 #define ipoib_dbg_data(priv, format, arg...) \
762 do { (void) (priv); } while (0)
763 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
765 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
767 #endif /* _IPOIB_H */