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[linux/fpc-iii.git] / drivers / infiniband / ulp / ipoib / ipoib.h
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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.
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
14 * conditions are met:
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
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
32 * SOFTWARE.
35 #ifndef _IPOIB_H
36 #define _IPOIB_H
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>
56 /* constants */
58 enum ipoib_flush_level {
59 IPOIB_FLUSH_LIGHT,
60 IPOIB_FLUSH_NORMAL,
61 IPOIB_FLUSH_HEAVY
64 enum {
65 IPOIB_ENCAP_LEN = 4,
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,
80 IPOIB_NUM_WC = 4,
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,
90 IPOIB_STOP_REAPER = 7,
91 IPOIB_FLAG_ADMIN_CM = 9,
92 IPOIB_FLAG_UMCAST = 10,
93 IPOIB_STOP_NEIGH_GC = 11,
94 IPOIB_NEIGH_TBL_FLUSH = 12,
96 IPOIB_MAX_BACKOFF_SECONDS = 16,
98 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
99 IPOIB_MCAST_FLAG_SENDONLY = 1,
101 * For IPOIB_MCAST_FLAG_BUSY
102 * When set, in flight join and mcast->mc is unreliable
103 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
104 * haven't started yet
105 * When clear and mcast->mc is valid pointer, join was successful
107 IPOIB_MCAST_FLAG_BUSY = 2,
108 IPOIB_MCAST_FLAG_ATTACHED = 3,
110 MAX_SEND_CQE = 16,
111 IPOIB_CM_COPYBREAK = 256,
113 IPOIB_NON_CHILD = 0,
114 IPOIB_LEGACY_CHILD = 1,
115 IPOIB_RTNL_CHILD = 2,
118 #define IPOIB_OP_RECV (1ul << 31)
119 #ifdef CONFIG_INFINIBAND_IPOIB_CM
120 #define IPOIB_OP_CM (1ul << 30)
121 #else
122 #define IPOIB_OP_CM (0)
123 #endif
125 #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
127 /* structs */
129 struct ipoib_header {
130 __be16 proto;
131 u16 reserved;
134 struct ipoib_cb {
135 struct qdisc_skb_cb qdisc_cb;
136 u8 hwaddr[INFINIBAND_ALEN];
139 static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb)
141 BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb));
142 return (struct ipoib_cb *)skb->cb;
145 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
146 struct ipoib_mcast {
147 struct ib_sa_mcmember_rec mcmember;
148 struct ib_sa_multicast *mc;
149 struct ipoib_ah *ah;
151 struct rb_node rb_node;
152 struct list_head list;
154 unsigned long created;
155 unsigned long backoff;
156 unsigned long delay_until;
158 unsigned long flags;
159 unsigned char logcount;
161 struct list_head neigh_list;
163 struct sk_buff_head pkt_queue;
165 struct net_device *dev;
166 struct completion done;
169 struct ipoib_rx_buf {
170 struct sk_buff *skb;
171 u64 mapping[IPOIB_UD_RX_SG];
174 struct ipoib_tx_buf {
175 struct sk_buff *skb;
176 u64 mapping[MAX_SKB_FRAGS + 1];
179 struct ipoib_cm_tx_buf {
180 struct sk_buff *skb;
181 u64 mapping;
184 struct ib_cm_id;
186 struct ipoib_cm_data {
187 __be32 qpn; /* High byte MUST be ignored on receive */
188 __be32 mtu;
192 * Quoting 10.3.1 Queue Pair and EE Context States:
194 * Note, for QPs that are associated with an SRQ, the Consumer should take the
195 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
196 * Reset State. The Consumer may invoke the Destroy QP without first performing
197 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
198 * Last WQE Reached Event. However, if the Consumer does not wait for the
199 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
200 * leakage may occur. Therefore, it is good programming practice to tear down a
201 * QP that is associated with an SRQ by using the following process:
203 * - Put the QP in the Error State
204 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
205 * - either:
206 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
207 * to be empty or the number of Poll CQ operations has exceeded
208 * CQ capacity size;
209 * - or
210 * post another WR that completes on the same CQ and wait for this
211 * WR to return as a WC;
212 * - and then invoke a Destroy QP or Reset QP.
214 * We use the second option and wait for a completion on the
215 * same CQ before destroying QPs attached to our SRQ.
218 enum ipoib_cm_state {
219 IPOIB_CM_RX_LIVE,
220 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
221 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
224 struct ipoib_cm_rx {
225 struct ib_cm_id *id;
226 struct ib_qp *qp;
227 struct ipoib_cm_rx_buf *rx_ring;
228 struct list_head list;
229 struct net_device *dev;
230 unsigned long jiffies;
231 enum ipoib_cm_state state;
232 int recv_count;
235 struct ipoib_cm_tx {
236 struct ib_cm_id *id;
237 struct ib_qp *qp;
238 struct list_head list;
239 struct net_device *dev;
240 struct ipoib_neigh *neigh;
241 struct ipoib_path *path;
242 struct ipoib_cm_tx_buf *tx_ring;
243 unsigned tx_head;
244 unsigned tx_tail;
245 unsigned long flags;
246 u32 mtu;
249 struct ipoib_cm_rx_buf {
250 struct sk_buff *skb;
251 u64 mapping[IPOIB_CM_RX_SG];
254 struct ipoib_cm_dev_priv {
255 struct ib_srq *srq;
256 struct ipoib_cm_rx_buf *srq_ring;
257 struct ib_cm_id *id;
258 struct list_head passive_ids; /* state: LIVE */
259 struct list_head rx_error_list; /* state: ERROR */
260 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
261 struct list_head rx_drain_list; /* state: FLUSH, drain started */
262 struct list_head rx_reap_list; /* state: FLUSH, drain done */
263 struct work_struct start_task;
264 struct work_struct reap_task;
265 struct work_struct skb_task;
266 struct work_struct rx_reap_task;
267 struct delayed_work stale_task;
268 struct sk_buff_head skb_queue;
269 struct list_head start_list;
270 struct list_head reap_list;
271 struct ib_wc ibwc[IPOIB_NUM_WC];
272 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
273 struct ib_recv_wr rx_wr;
274 int nonsrq_conn_qp;
275 int max_cm_mtu;
276 int num_frags;
279 struct ipoib_ethtool_st {
280 u16 coalesce_usecs;
281 u16 max_coalesced_frames;
284 struct ipoib_neigh_table;
286 struct ipoib_neigh_hash {
287 struct ipoib_neigh_table *ntbl;
288 struct ipoib_neigh __rcu **buckets;
289 struct rcu_head rcu;
290 u32 mask;
291 u32 size;
294 struct ipoib_neigh_table {
295 struct ipoib_neigh_hash __rcu *htbl;
296 atomic_t entries;
297 struct completion flushed;
298 struct completion deleted;
301 struct ipoib_qp_state_validate {
302 struct work_struct work;
303 struct ipoib_dev_priv *priv;
307 * Device private locking: network stack tx_lock protects members used
308 * in TX fast path, lock protects everything else. lock nests inside
309 * of tx_lock (ie tx_lock must be acquired first if needed).
311 struct ipoib_dev_priv {
312 spinlock_t lock;
314 struct net_device *dev;
316 struct napi_struct napi;
318 unsigned long flags;
320 struct rw_semaphore vlan_rwsem;
322 struct rb_root path_tree;
323 struct list_head path_list;
325 struct ipoib_neigh_table ntbl;
327 struct ipoib_mcast *broadcast;
328 struct list_head multicast_list;
329 struct rb_root multicast_tree;
331 struct workqueue_struct *wq;
332 struct delayed_work mcast_task;
333 struct work_struct carrier_on_task;
334 struct work_struct flush_light;
335 struct work_struct flush_normal;
336 struct work_struct flush_heavy;
337 struct work_struct restart_task;
338 struct delayed_work ah_reap_task;
339 struct delayed_work neigh_reap_task;
340 struct ib_device *ca;
341 u8 port;
342 u16 pkey;
343 u16 pkey_index;
344 struct ib_pd *pd;
345 struct ib_mr *mr;
346 struct ib_cq *recv_cq;
347 struct ib_cq *send_cq;
348 struct ib_qp *qp;
349 u32 qkey;
351 union ib_gid local_gid;
352 u16 local_lid;
354 unsigned int admin_mtu;
355 unsigned int mcast_mtu;
356 unsigned int max_ib_mtu;
358 struct ipoib_rx_buf *rx_ring;
360 struct ipoib_tx_buf *tx_ring;
361 unsigned tx_head;
362 unsigned tx_tail;
363 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
364 struct ib_send_wr tx_wr;
365 unsigned tx_outstanding;
366 struct ib_wc send_wc[MAX_SEND_CQE];
368 struct ib_recv_wr rx_wr;
369 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
371 struct ib_wc ibwc[IPOIB_NUM_WC];
373 struct list_head dead_ahs;
375 struct ib_event_handler event_handler;
377 struct net_device *parent;
378 struct list_head child_intfs;
379 struct list_head list;
380 int child_type;
382 #ifdef CONFIG_INFINIBAND_IPOIB_CM
383 struct ipoib_cm_dev_priv cm;
384 #endif
386 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
387 struct list_head fs_list;
388 struct dentry *mcg_dentry;
389 struct dentry *path_dentry;
390 #endif
391 int hca_caps;
392 struct ipoib_ethtool_st ethtool;
393 struct timer_list poll_timer;
396 struct ipoib_ah {
397 struct net_device *dev;
398 struct ib_ah *ah;
399 struct list_head list;
400 struct kref ref;
401 unsigned last_send;
404 struct ipoib_path {
405 struct net_device *dev;
406 struct ib_sa_path_rec pathrec;
407 struct ipoib_ah *ah;
408 struct sk_buff_head queue;
410 struct list_head neigh_list;
412 int query_id;
413 struct ib_sa_query *query;
414 struct completion done;
416 struct rb_node rb_node;
417 struct list_head list;
418 int valid;
421 struct ipoib_neigh {
422 struct ipoib_ah *ah;
423 #ifdef CONFIG_INFINIBAND_IPOIB_CM
424 struct ipoib_cm_tx *cm;
425 #endif
426 u8 daddr[INFINIBAND_ALEN];
427 struct sk_buff_head queue;
429 struct net_device *dev;
431 struct list_head list;
432 struct ipoib_neigh __rcu *hnext;
433 struct rcu_head rcu;
434 atomic_t refcnt;
435 unsigned long alive;
438 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
439 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
441 void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
442 static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
444 if (atomic_dec_and_test(&neigh->refcnt))
445 ipoib_neigh_dtor(neigh);
447 struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
448 struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
449 struct net_device *dev);
450 void ipoib_neigh_free(struct ipoib_neigh *neigh);
451 void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
453 extern struct workqueue_struct *ipoib_workqueue;
455 /* functions */
457 int ipoib_poll(struct napi_struct *napi, int budget);
458 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
459 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
461 struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
462 struct ib_pd *pd, struct ib_ah_attr *attr);
463 void ipoib_free_ah(struct kref *kref);
464 static inline void ipoib_put_ah(struct ipoib_ah *ah)
466 kref_put(&ah->ref, ipoib_free_ah);
468 int ipoib_open(struct net_device *dev);
469 int ipoib_add_pkey_attr(struct net_device *dev);
470 int ipoib_add_umcast_attr(struct net_device *dev);
472 void ipoib_send(struct net_device *dev, struct sk_buff *skb,
473 struct ipoib_ah *address, u32 qpn);
474 void ipoib_reap_ah(struct work_struct *work);
476 void ipoib_mark_paths_invalid(struct net_device *dev);
477 void ipoib_flush_paths(struct net_device *dev);
478 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
480 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
481 void ipoib_ib_dev_flush_light(struct work_struct *work);
482 void ipoib_ib_dev_flush_normal(struct work_struct *work);
483 void ipoib_ib_dev_flush_heavy(struct work_struct *work);
484 void ipoib_pkey_event(struct work_struct *work);
485 void ipoib_ib_dev_cleanup(struct net_device *dev);
487 int ipoib_ib_dev_open(struct net_device *dev);
488 int ipoib_ib_dev_up(struct net_device *dev);
489 int ipoib_ib_dev_down(struct net_device *dev);
490 int ipoib_ib_dev_stop(struct net_device *dev);
491 void ipoib_pkey_dev_check_presence(struct net_device *dev);
493 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
494 void ipoib_dev_cleanup(struct net_device *dev);
496 void ipoib_mcast_join_task(struct work_struct *work);
497 void ipoib_mcast_carrier_on_task(struct work_struct *work);
498 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
500 void ipoib_mcast_restart_task(struct work_struct *work);
501 int ipoib_mcast_start_thread(struct net_device *dev);
502 int ipoib_mcast_stop_thread(struct net_device *dev);
504 void ipoib_mcast_dev_down(struct net_device *dev);
505 void ipoib_mcast_dev_flush(struct net_device *dev);
507 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
508 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
509 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
510 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
511 union ib_gid *gid,
512 unsigned long *created,
513 unsigned int *queuelen,
514 unsigned int *complete,
515 unsigned int *send_only);
517 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
518 int ipoib_path_iter_next(struct ipoib_path_iter *iter);
519 void ipoib_path_iter_read(struct ipoib_path_iter *iter,
520 struct ipoib_path *path);
521 #endif
523 int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
524 union ib_gid *mgid, int set_qkey);
526 int ipoib_init_qp(struct net_device *dev);
527 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
528 void ipoib_transport_dev_cleanup(struct net_device *dev);
530 void ipoib_event(struct ib_event_handler *handler,
531 struct ib_event *record);
533 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
534 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
536 int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
537 u16 pkey, int child_type);
539 int __init ipoib_netlink_init(void);
540 void __exit ipoib_netlink_fini(void);
542 void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
543 int ipoib_set_mode(struct net_device *dev, const char *buf);
545 void ipoib_setup(struct net_device *dev);
547 void ipoib_pkey_open(struct ipoib_dev_priv *priv);
548 void ipoib_drain_cq(struct net_device *dev);
550 void ipoib_set_ethtool_ops(struct net_device *dev);
551 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
553 #define IPOIB_FLAGS_RC 0x80
554 #define IPOIB_FLAGS_UC 0x40
556 /* We don't support UC connections at the moment */
557 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
559 #ifdef CONFIG_INFINIBAND_IPOIB_CM
561 extern int ipoib_max_conn_qp;
563 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
565 struct ipoib_dev_priv *priv = netdev_priv(dev);
566 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
567 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
570 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
572 struct ipoib_dev_priv *priv = netdev_priv(dev);
573 return IPOIB_CM_SUPPORTED(hwaddr) &&
574 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
577 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
580 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
583 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
585 return neigh->cm;
588 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
590 neigh->cm = tx;
593 static inline int ipoib_cm_has_srq(struct net_device *dev)
595 struct ipoib_dev_priv *priv = netdev_priv(dev);
596 return !!priv->cm.srq;
599 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
601 struct ipoib_dev_priv *priv = netdev_priv(dev);
602 return priv->cm.max_cm_mtu;
605 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
606 int ipoib_cm_dev_open(struct net_device *dev);
607 void ipoib_cm_dev_stop(struct net_device *dev);
608 int ipoib_cm_dev_init(struct net_device *dev);
609 int ipoib_cm_add_mode_attr(struct net_device *dev);
610 void ipoib_cm_dev_cleanup(struct net_device *dev);
611 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
612 struct ipoib_neigh *neigh);
613 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
614 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
615 unsigned int mtu);
616 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
617 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
618 #else
620 struct ipoib_cm_tx;
622 #define ipoib_max_conn_qp 0
624 static inline int ipoib_cm_admin_enabled(struct net_device *dev)
626 return 0;
628 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
631 return 0;
634 static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
637 return 0;
640 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
642 return NULL;
645 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
649 static inline int ipoib_cm_has_srq(struct net_device *dev)
651 return 0;
654 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
656 return 0;
659 static inline
660 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
662 return;
665 static inline
666 int ipoib_cm_dev_open(struct net_device *dev)
668 return 0;
671 static inline
672 void ipoib_cm_dev_stop(struct net_device *dev)
674 return;
677 static inline
678 int ipoib_cm_dev_init(struct net_device *dev)
680 return -ENOSYS;
683 static inline
684 void ipoib_cm_dev_cleanup(struct net_device *dev)
686 return;
689 static inline
690 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
691 struct ipoib_neigh *neigh)
693 return NULL;
696 static inline
697 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
699 return;
702 static inline
703 int ipoib_cm_add_mode_attr(struct net_device *dev)
705 return 0;
708 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
709 unsigned int mtu)
711 dev_kfree_skb_any(skb);
714 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
718 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
721 #endif
723 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
724 void ipoib_create_debug_files(struct net_device *dev);
725 void ipoib_delete_debug_files(struct net_device *dev);
726 int ipoib_register_debugfs(void);
727 void ipoib_unregister_debugfs(void);
728 #else
729 static inline void ipoib_create_debug_files(struct net_device *dev) { }
730 static inline void ipoib_delete_debug_files(struct net_device *dev) { }
731 static inline int ipoib_register_debugfs(void) { return 0; }
732 static inline void ipoib_unregister_debugfs(void) { }
733 #endif
735 #define ipoib_printk(level, priv, format, arg...) \
736 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
737 #define ipoib_warn(priv, format, arg...) \
738 ipoib_printk(KERN_WARNING, priv, format , ## arg)
740 extern int ipoib_sendq_size;
741 extern int ipoib_recvq_size;
743 extern struct ib_sa_client ipoib_sa_client;
745 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
746 extern int ipoib_debug_level;
748 #define ipoib_dbg(priv, format, arg...) \
749 do { \
750 if (ipoib_debug_level > 0) \
751 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
752 } while (0)
753 #define ipoib_dbg_mcast(priv, format, arg...) \
754 do { \
755 if (mcast_debug_level > 0) \
756 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
757 } while (0)
758 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
759 #define ipoib_dbg(priv, format, arg...) \
760 do { (void) (priv); } while (0)
761 #define ipoib_dbg_mcast(priv, format, arg...) \
762 do { (void) (priv); } while (0)
763 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
765 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
766 #define ipoib_dbg_data(priv, format, arg...) \
767 do { \
768 if (data_debug_level > 0) \
769 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
770 } while (0)
771 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
772 #define ipoib_dbg_data(priv, format, arg...) \
773 do { (void) (priv); } while (0)
774 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
776 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
778 extern const char ipoib_driver_version[];
780 #endif /* _IPOIB_H */