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IPoIB: Copy small received SKBs in connected mode
[deliverable/linux.git] / drivers / infiniband / ulp / ipoib / ipoib.h
CommitLineData
1da177e4
LT		 1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
2a1d9b7f
RD		 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
1da177e4
LT		 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.
1da177e4
LT		 33 */
34
35#ifndef _IPOIB_H
36#define _IPOIB_H
37
38#include <linux/list.h>
39#include <linux/skbuff.h>
40#include <linux/netdevice.h>
41#include <linux/workqueue.h>
1da177e4
LT		 42#include <linux/kref.h>
43#include <linux/if_infiniband.h>
95ed644f 44#include <linux/mutex.h>
1da177e4
LT		 45
46#include <net/neighbour.h>
47
48#include <asm/atomic.h>
1da177e4 49
a4d61e84
RD		 50#include <rdma/ib_verbs.h>
51#include <rdma/ib_pack.h>
52#include <rdma/ib_sa.h>
1da177e4
LT		 53
54/* constants */
55
56enum {
2337f809 57 IPOIB_ENCAP_LEN = 4,
1da177e4 58
bc7b3a36
SM		 59 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
60 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
61
2337f809
RD		 62 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */
63 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,
64 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
65 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,
66 IPOIB_RX_RING_SIZE = 128,
67 IPOIB_TX_RING_SIZE = 64,
0f485251
SM		 68 IPOIB_MAX_QUEUE_SIZE = 8192,
69 IPOIB_MIN_QUEUE_SIZE = 2,
68e995a2 70 IPOIB_CM_MAX_CONN_QP = 4096,
1da177e4 71
2337f809 72 IPOIB_NUM_WC = 4,
1da177e4
LT		 73
74 IPOIB_MAX_PATH_REC_QUEUE = 3,
2337f809
RD		 75 IPOIB_MAX_MCAST_QUEUE = 3,
76
77 IPOIB_FLAG_OPER_UP = 0,
78 IPOIB_FLAG_INITIALIZED = 1,
79 IPOIB_FLAG_ADMIN_UP = 2,
80 IPOIB_PKEY_ASSIGNED = 3,
81 IPOIB_PKEY_STOP = 4,
82 IPOIB_FLAG_SUBINTERFACE = 5,
83 IPOIB_MCAST_RUN = 6,
84 IPOIB_STOP_REAPER = 7,
85 IPOIB_MCAST_STARTED = 8,
86 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 87 IPOIB_FLAG_UMCAST = 10,
6046136c 88 IPOIB_FLAG_CSUM = 11,
1da177e4
LT		 89
90 IPOIB_MAX_BACKOFF_SECONDS = 16,
91
2337f809 92 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 93 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 94 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 95 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80
EC		 96
97 MAX_SEND_CQE = 16,
f89271da 98 IPOIB_CM_COPYBREAK = 256,
1da177e4
LT		 99};
100
839fcaba
MT		 101#define IPOIB_OP_RECV (1ul << 31)
102#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 103#define IPOIB_OP_CM (1ul << 30)
839fcaba 104#else
1b524963 105#define IPOIB_OP_CM (0)
839fcaba
MT		 106#endif
107
1da177e4
LT		 108/* structs */
109
110struct ipoib_header {
97f52eb4
SH		 111 __be16 proto;
112 u16 reserved;
1da177e4
LT		 113};
114
115struct ipoib_pseudoheader {
116 u8 hwaddr[INFINIBAND_ALEN];
117};
118
81668838
SH		 119/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
120struct ipoib_mcast {
121 struct ib_sa_mcmember_rec mcmember;
122 struct ib_sa_multicast *mc;
2337f809 123 struct ipoib_ah *ah;
81668838
SH		 124
125 struct rb_node rb_node;
126 struct list_head list;
127
128 unsigned long created;
129 unsigned long backoff;
130
131 unsigned long flags;
132 unsigned char logcount;
133
134 struct list_head neigh_list;
135
136 struct sk_buff_head pkt_queue;
137
138 struct net_device *dev;
139};
1da177e4 140
1993d683
RD		 141struct ipoib_rx_buf {
142 struct sk_buff *skb;
bc7b3a36 143 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 144};
145
146struct ipoib_tx_buf {
1da177e4 147 struct sk_buff *skb;
7143740d 148 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 149};
150
839fcaba
MT		 151struct ib_cm_id;
152
153struct ipoib_cm_data {
154 __be32 qpn; /* High byte MUST be ignored on receive */
155 __be32 mtu;
156};
157
518b1646
MT		 158/*
159 * Quoting 10.3.1 Queue Pair and EE Context States:
160 *
161 * Note, for QPs that are associated with an SRQ, the Consumer should take the
162 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
163 * Reset State. The Consumer may invoke the Destroy QP without first performing
164 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
165 * Last WQE Reached Event. However, if the Consumer does not wait for the
166 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
167 * leakage may occur. Therefore, it is good programming practice to tear down a
168 * QP that is associated with an SRQ by using the following process:
169 *
170 * - Put the QP in the Error State
171 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
172 * - either:
173 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
174 * to be empty or the number of Poll CQ operations has exceeded
175 * CQ capacity size;
176 * - or
177 * post another WR that completes on the same CQ and wait for this
178 * WR to return as a WC;
179 * - and then invoke a Destroy QP or Reset QP.
180 *
181 * We use the second option and wait for a completion on the
ec56dc0b 182 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 183 */
184
185enum ipoib_cm_state {
186 IPOIB_CM_RX_LIVE,
187 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
188 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
189};
190
839fcaba 191struct ipoib_cm_rx {
2337f809
RD		 192 struct ib_cm_id *id;
193 struct ib_qp *qp;
68e995a2 194 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 195 struct list_head list;
196 struct net_device *dev;
197 unsigned long jiffies;
198 enum ipoib_cm_state state;
68e995a2 199 int recv_count;
839fcaba
MT		 200};
201
202struct ipoib_cm_tx {
2337f809
RD		 203 struct ib_cm_id *id;
204 struct ib_qp *qp;
839fcaba
MT		 205 struct list_head list;
206 struct net_device *dev;
207 struct ipoib_neigh *neigh;
208 struct ipoib_path *path;
209 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 210 unsigned tx_head;
211 unsigned tx_tail;
212 unsigned long flags;
213 u32 mtu;
839fcaba
MT		 214};
215
216struct ipoib_cm_rx_buf {
217 struct sk_buff *skb;
218 u64 mapping[IPOIB_CM_RX_SG];
219};
220
221struct ipoib_cm_dev_priv {
2337f809 222 struct ib_srq *srq;
839fcaba 223 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 224 struct ib_cm_id *id;
225 struct list_head passive_ids; /* state: LIVE */
226 struct list_head rx_error_list; /* state: ERROR */
227 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
228 struct list_head rx_drain_list; /* state: FLUSH, drain started */
229 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 230 struct work_struct start_task;
231 struct work_struct reap_task;
232 struct work_struct skb_task;
518b1646 233 struct work_struct rx_reap_task;
839fcaba
MT		 234 struct delayed_work stale_task;
235 struct sk_buff_head skb_queue;
2337f809
RD		 236 struct list_head start_list;
237 struct list_head reap_list;
238 struct ib_wc ibwc[IPOIB_NUM_WC];
239 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 240 struct ib_recv_wr rx_wr;
68e995a2 241 int nonsrq_conn_qp;
586a6934
PS		 242 int max_cm_mtu;
243 int num_frags;
839fcaba
MT		 244};
245
28d52b3c
EC		 246struct ipoib_ethtool_st {
247 u16 coalesce_usecs;
248 u16 max_coalesced_frames;
249};
250
1da177e4
LT		 251/*
252 * Device private locking: tx_lock protects members used in TX fast
253 * path (and we use LLTX so upper layers don't do extra locking).
254 * lock protects everything else. lock nests inside of tx_lock (ie
255 * tx_lock must be acquired first if needed).
256 */
257struct ipoib_dev_priv {
258 spinlock_t lock;
259
260 struct net_device *dev;
261
bea3348e
SH		 262 struct napi_struct napi;
263
1da177e4
LT		 264 unsigned long flags;
265
95ed644f
IM		 266 struct mutex mcast_mutex;
267 struct mutex vlan_mutex;
1da177e4
LT		 268
269 struct rb_root path_tree;
270 struct list_head path_list;
271
272 struct ipoib_mcast *broadcast;
273 struct list_head multicast_list;
274 struct rb_root multicast_tree;
275
26bbf13c 276 struct delayed_work pkey_poll_task;
c4028958 277 struct delayed_work mcast_task;
1da177e4
LT		 278 struct work_struct flush_task;
279 struct work_struct restart_task;
c4028958 280 struct delayed_work ah_reap_task;
26bbf13c 281 struct work_struct pkey_event_task;
1da177e4
LT		 282
283 struct ib_device *ca;
2337f809
RD		 284 u8 port;
285 u16 pkey;
286 u16 pkey_index;
287 struct ib_pd *pd;
288 struct ib_mr *mr;
f56bcd80
EC		 289 struct ib_cq *recv_cq;
290 struct ib_cq *send_cq;
2337f809
RD		 291 struct ib_qp *qp;
292 u32 qkey;
1da177e4
LT		 293
294 union ib_gid local_gid;
2337f809 295 u16 local_lid;
1da177e4
LT		 296
297 unsigned int admin_mtu;
298 unsigned int mcast_mtu;
bc7b3a36 299 unsigned int max_ib_mtu;
1da177e4 300
1993d683 301 struct ipoib_rx_buf *rx_ring;
1da177e4 302
2337f809 303 spinlock_t tx_lock;
1993d683 304 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 305 unsigned tx_head;
306 unsigned tx_tail;
7143740d 307 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 308 struct ib_send_wr tx_wr;
2337f809 309 unsigned tx_outstanding;
f56bcd80 310 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 311
bc7b3a36
SM		 312 struct ib_recv_wr rx_wr;
313 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
314
1da177e4
LT		 315 struct ib_wc ibwc[IPOIB_NUM_WC];
316
317 struct list_head dead_ahs;
318
319 struct ib_event_handler event_handler;
320
1da177e4
LT		 321 struct net_device *parent;
322 struct list_head child_intfs;
323 struct list_head list;
324
839fcaba
MT		 325#ifdef CONFIG_INFINIBAND_IPOIB_CM
326 struct ipoib_cm_dev_priv cm;
327#endif
328
1da177e4
LT		 329#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
330 struct list_head fs_list;
331 struct dentry *mcg_dentry;
1732b0ef 332 struct dentry *path_dentry;
1da177e4 333#endif
40ca1988 334 int hca_caps;
28d52b3c 335 struct ipoib_ethtool_st ethtool;
57ce41d1 336 struct timer_list poll_timer;
1da177e4
LT		 337};
338
339struct ipoib_ah {
340 struct net_device *dev;
2337f809 341 struct ib_ah *ah;
1da177e4 342 struct list_head list;
2337f809
RD		 343 struct kref ref;
344 unsigned last_send;
1da177e4
LT		 345};
346
347struct ipoib_path {
348 struct net_device *dev;
349 struct ib_sa_path_rec pathrec;
350 struct ipoib_ah *ah;
351 struct sk_buff_head queue;
352
353 struct list_head neigh_list;
354
2337f809 355 int query_id;
1da177e4
LT		 356 struct ib_sa_query *query;
357 struct completion done;
358
2337f809 359 struct rb_node rb_node;
1da177e4
LT		 360 struct list_head list;
361};
362
363struct ipoib_neigh {
364 struct ipoib_ah *ah;
839fcaba
MT		 365#ifdef CONFIG_INFINIBAND_IPOIB_CM
366 struct ipoib_cm_tx *cm;
367#endif
2337f809 368 union ib_gid dgid;
1da177e4
LT		 369 struct sk_buff_head queue;
370
371 struct neighbour *neighbour;
732a2170 372 struct net_device *dev;
1da177e4
LT		 373
374 struct list_head list;
375};
376
bc7b3a36
SM		 377#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
378#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
379
380static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
381{
382 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
383}
384
44af79f9
MT		 385/*
386 * We stash a pointer to our private neighbour information after our
387 * hardware address in neigh->ha. The ALIGN() expression here makes
388 * sure that this pointer is stored aligned so that an unaligned
389 * load is not needed to dereference it.
390 */
1da177e4
LT		 391static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
392{
44af79f9
MT		 393 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
394 INFINIBAND_ALEN, sizeof(void *));
1da177e4
LT		 395}
396
732a2170
MS		 397struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
398 struct net_device *dev);
2745b5b7 399void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
d2e0655e 400
1da177e4
LT		 401extern struct workqueue_struct *ipoib_workqueue;
402
403/* functions */
404
bea3348e 405int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 406void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 407void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 408
409struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
410 struct ib_pd *pd, struct ib_ah_attr *attr);
411void ipoib_free_ah(struct kref *kref);
412static inline void ipoib_put_ah(struct ipoib_ah *ah)
413{
414 kref_put(&ah->ref, ipoib_free_ah);
415}
416
8ae5a8a2 417int ipoib_open(struct net_device *dev);
1da177e4 418int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 419int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 420
421void ipoib_send(struct net_device *dev, struct sk_buff *skb,
422 struct ipoib_ah *address, u32 qpn);
c4028958 423void ipoib_reap_ah(struct work_struct *work);
1da177e4
LT		 424
425void ipoib_flush_paths(struct net_device *dev);
426struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
427
428int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
c4028958 429void ipoib_ib_dev_flush(struct work_struct *work);
26bbf13c 430void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 431void ipoib_ib_dev_cleanup(struct net_device *dev);
432
433int ipoib_ib_dev_open(struct net_device *dev);
434int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 435int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 436int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 437
438int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
439void ipoib_dev_cleanup(struct net_device *dev);
440
c4028958 441void ipoib_mcast_join_task(struct work_struct *work);
37c22a77 442void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
1da177e4 443
c4028958 444void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 445int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 446int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 447
448void ipoib_mcast_dev_down(struct net_device *dev);
449void ipoib_mcast_dev_flush(struct net_device *dev);
450
8ae5a8a2 451#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 452struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 453int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
454void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
455 union ib_gid *gid,
456 unsigned long *created,
457 unsigned int *queuelen,
458 unsigned int *complete,
459 unsigned int *send_only);
1732b0ef
RD		 460
461struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
462int ipoib_path_iter_next(struct ipoib_path_iter *iter);
463void ipoib_path_iter_read(struct ipoib_path_iter *iter,
464 struct ipoib_path *path);
8ae5a8a2 465#endif
1da177e4
LT		 466
467int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
468 union ib_gid *mgid);
469int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
470 union ib_gid *mgid);
471
5b6810e0 472int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 473int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
474void ipoib_transport_dev_cleanup(struct net_device *dev);
475
476void ipoib_event(struct ib_event_handler *handler,
477 struct ib_event *record);
478
479int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
480int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
481
c4028958 482void ipoib_pkey_poll(struct work_struct *work);
1da177e4 483int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 484void ipoib_drain_cq(struct net_device *dev);
1da177e4 485
82c24c18
EC		 486void ipoib_set_ethtool_ops(struct net_device *dev);
487
839fcaba
MT		 488#ifdef CONFIG_INFINIBAND_IPOIB_CM
489
2337f809
RD		 490#define IPOIB_FLAGS_RC 0x80
491#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 492
493/* We don't support UC connections at the moment */
494#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
495
68e995a2
PS		 496extern int ipoib_max_conn_qp;
497
839fcaba
MT		 498static inline int ipoib_cm_admin_enabled(struct net_device *dev)
499{
500 struct ipoib_dev_priv *priv = netdev_priv(dev);
501 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
502 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
503}
504
505static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
506{
507 struct ipoib_dev_priv *priv = netdev_priv(dev);
508 return IPOIB_CM_SUPPORTED(n->ha) &&
509 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
510}
511
512static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
513
514{
515 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
516}
517
518static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
519{
520 return neigh->cm;
521}
522
523static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
524{
525 neigh->cm = tx;
526}
527
68e995a2
PS		 528static inline int ipoib_cm_has_srq(struct net_device *dev)
529{
530 struct ipoib_dev_priv *priv = netdev_priv(dev);
531 return !!priv->cm.srq;
532}
533
586a6934
PS		 534static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
535{
536 struct ipoib_dev_priv *priv = netdev_priv(dev);
537 return priv->cm.max_cm_mtu;
538}
539
839fcaba
MT		 540void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
541int ipoib_cm_dev_open(struct net_device *dev);
542void ipoib_cm_dev_stop(struct net_device *dev);
543int ipoib_cm_dev_init(struct net_device *dev);
544int ipoib_cm_add_mode_attr(struct net_device *dev);
545void ipoib_cm_dev_cleanup(struct net_device *dev);
546struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
547 struct ipoib_neigh *neigh);
548void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 549void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 550 unsigned int mtu);
551void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 552void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 553#else
554
555struct ipoib_cm_tx;
556
68e995a2
PS		 557#define ipoib_max_conn_qp 0
558
839fcaba
MT		 559static inline int ipoib_cm_admin_enabled(struct net_device *dev)
560{
561 return 0;
562}
563static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
564
565{
566 return 0;
567}
568
569static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
570
571{
572 return 0;
573}
574
575static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
576{
577 return NULL;
578}
579
580static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
581{
582}
583
68e995a2
PS		 584static inline int ipoib_cm_has_srq(struct net_device *dev)
585{
586 return 0;
587}
588
586a6934
PS		 589static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
590{
591 return 0;
592}
593
839fcaba
MT		 594static inline
595void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
596{
597 return;
598}
599
600static inline
601int ipoib_cm_dev_open(struct net_device *dev)
602{
603 return 0;
604}
605
606static inline
607void ipoib_cm_dev_stop(struct net_device *dev)
608{
609 return;
610}
611
612static inline
613int ipoib_cm_dev_init(struct net_device *dev)
614{
615 return -ENOSYS;
616}
617
618static inline
619void ipoib_cm_dev_cleanup(struct net_device *dev)
620{
621 return;
622}
623
624static inline
625struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
626 struct ipoib_neigh *neigh)
627{
628 return NULL;
629}
630
631static inline
632void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
633{
634 return;
635}
636
637static inline
638int ipoib_cm_add_mode_attr(struct net_device *dev)
639{
640 return 0;
641}
642
2337f809 643static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 644 unsigned int mtu)
645{
646 dev_kfree_skb_any(skb);
647}
648
649static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
650{
651}
652
1b524963
MT		 653static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
654{
655}
839fcaba
MT		 656#endif
657
1da177e4 658#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 659void ipoib_create_debug_files(struct net_device *dev);
660void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 661int ipoib_register_debugfs(void);
662void ipoib_unregister_debugfs(void);
663#else
1732b0ef
RD		 664static inline void ipoib_create_debug_files(struct net_device *dev) { }
665static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 666static inline int ipoib_register_debugfs(void) { return 0; }
667static inline void ipoib_unregister_debugfs(void) { }
668#endif
669
1da177e4
LT		 670#define ipoib_printk(level, priv, format, arg...) \
671 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
672#define ipoib_warn(priv, format, arg...) \
673 ipoib_printk(KERN_WARNING, priv, format , ## arg)
674
0f485251
SM		 675extern int ipoib_sendq_size;
676extern int ipoib_recvq_size;
1da177e4 677
c1a0b23b
MT		 678extern struct ib_sa_client ipoib_sa_client;
679
1da177e4
LT		 680#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
681extern int ipoib_debug_level;
682
683#define ipoib_dbg(priv, format, arg...) \
2337f809 684 do { \
1da177e4
LT		 685 if (ipoib_debug_level > 0) \
686 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
687 } while (0)
688#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 689 do { \
1da177e4
LT		 690 if (mcast_debug_level > 0) \
691 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
692 } while (0)
693#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
694#define ipoib_dbg(priv, format, arg...) \
695 do { (void) (priv); } while (0)
696#define ipoib_dbg_mcast(priv, format, arg...) \
697 do { (void) (priv); } while (0)
698#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
699
700#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
701#define ipoib_dbg_data(priv, format, arg...) \
2337f809 702 do { \
1da177e4
LT		 703 if (data_debug_level > 0) \
704 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
705 } while (0)
706#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
707#define ipoib_dbg_data(priv, format, arg...) \
708 do { (void) (priv); } while (0)
709#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
710
711
37c22a77
JM		 712#define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
713 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
714
715#define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \
716 ((u8 *)(gid))[1], \
717 ((u8 *)(gid))[2], \
718 ((u8 *)(gid))[3], \
719 ((u8 *)(gid))[4], \
720 ((u8 *)(gid))[5], \
721 ((u8 *)(gid))[6], \
722 ((u8 *)(gid))[7], \
723 ((u8 *)(gid))[8], \
724 ((u8 *)(gid))[9], \
725 ((u8 *)(gid))[10],\
726 ((u8 *)(gid))[11],\
727 ((u8 *)(gid))[12],\
728 ((u8 *)(gid))[13],\
729 ((u8 *)(gid))[14],\
730 ((u8 *)(gid))[15]
731
732#define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw)
1da177e4 733
839fcaba
MT		 734#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
735
1da177e4 736#endif /* _IPOIB_H */
Linux kernel - Deliverables
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