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IPoIB: Fix memory leak in the neigh table deletion flow
[mirror_ubuntu-jammy-kernel.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>
936d7de3 47#include <net/sch_generic.h>
1da177e4 48
60063497 49#include <linux/atomic.h>
1da177e4 50
a4d61e84
RD		 51#include <rdma/ib_verbs.h>
52#include <rdma/ib_pack.h>
53#include <rdma/ib_sa.h>
19e364f6 54#include <linux/sched.h>
1da177e4
LT		 55
56/* constants */
57
ee1e2c82
MS		 58enum ipoib_flush_level {
59 IPOIB_FLUSH_LIGHT,
60 IPOIB_FLUSH_NORMAL,
61 IPOIB_FLUSH_HEAVY
62};
63
1da177e4 64enum {
2337f809 65 IPOIB_ENCAP_LEN = 4,
1da177e4 66
bc7b3a36
SM		 67 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
68 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */
69
2337f809
RD		 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,
bc3a290b
EC		 74 IPOIB_RX_RING_SIZE = 256,
75 IPOIB_TX_RING_SIZE = 128,
0f485251
SM		 76 IPOIB_MAX_QUEUE_SIZE = 8192,
77 IPOIB_MIN_QUEUE_SIZE = 2,
68e995a2 78 IPOIB_CM_MAX_CONN_QP = 4096,
1da177e4 79
2337f809 80 IPOIB_NUM_WC = 4,
1da177e4
LT		 81
82 IPOIB_MAX_PATH_REC_QUEUE = 3,
2337f809
RD		 83 IPOIB_MAX_MCAST_QUEUE = 3,
84
85 IPOIB_FLAG_OPER_UP = 0,
86 IPOIB_FLAG_INITIALIZED = 1,
87 IPOIB_FLAG_ADMIN_UP = 2,
88 IPOIB_PKEY_ASSIGNED = 3,
89 IPOIB_PKEY_STOP = 4,
90 IPOIB_FLAG_SUBINTERFACE = 5,
91 IPOIB_MCAST_RUN = 6,
92 IPOIB_STOP_REAPER = 7,
2337f809 93 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 94 IPOIB_FLAG_UMCAST = 10,
b63b70d8
SP		 95 IPOIB_STOP_NEIGH_GC = 11,
96 IPOIB_NEIGH_TBL_FLUSH = 12,
1da177e4
LT		 97
98 IPOIB_MAX_BACKOFF_SECONDS = 16,
99
2337f809 100 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 101 IPOIB_MCAST_FLAG_SENDONLY = 1,
2337f809 102 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 103 IPOIB_MCAST_FLAG_ATTACHED = 3,
f56bcd80
EC		 104
105 MAX_SEND_CQE = 16,
f89271da 106 IPOIB_CM_COPYBREAK = 256,
1da177e4
LT		 107};
108
839fcaba
MT		 109#define IPOIB_OP_RECV (1ul << 31)
110#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 111#define IPOIB_OP_CM (1ul << 30)
839fcaba 112#else
1b524963 113#define IPOIB_OP_CM (0)
839fcaba
MT		 114#endif
115
1da177e4
LT		 116/* structs */
117
118struct ipoib_header {
97f52eb4
SH		 119 __be16 proto;
120 u16 reserved;
1da177e4
LT		 121};
122
936d7de3
RD		 123struct ipoib_cb {
124 struct qdisc_skb_cb qdisc_cb;
125 u8 hwaddr[INFINIBAND_ALEN];
1da177e4
LT		 126};
127
81668838
SH		 128/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
129struct ipoib_mcast {
130 struct ib_sa_mcmember_rec mcmember;
131 struct ib_sa_multicast *mc;
2337f809 132 struct ipoib_ah *ah;
81668838
SH		 133
134 struct rb_node rb_node;
135 struct list_head list;
136
137 unsigned long created;
138 unsigned long backoff;
139
140 unsigned long flags;
141 unsigned char logcount;
142
143 struct list_head neigh_list;
144
145 struct sk_buff_head pkt_queue;
146
147 struct net_device *dev;
148};
1da177e4 149
1993d683
RD		 150struct ipoib_rx_buf {
151 struct sk_buff *skb;
bc7b3a36 152 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 153};
154
155struct ipoib_tx_buf {
1da177e4 156 struct sk_buff *skb;
7143740d 157 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 158};
159
e112373f
EC		 160struct ipoib_cm_tx_buf {
161 struct sk_buff *skb;
162 u64 mapping;
163};
164
839fcaba
MT		 165struct ib_cm_id;
166
167struct ipoib_cm_data {
168 __be32 qpn; /* High byte MUST be ignored on receive */
169 __be32 mtu;
170};
171
518b1646
MT		 172/*
173 * Quoting 10.3.1 Queue Pair and EE Context States:
174 *
175 * Note, for QPs that are associated with an SRQ, the Consumer should take the
176 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
177 * Reset State. The Consumer may invoke the Destroy QP without first performing
178 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
179 * Last WQE Reached Event. However, if the Consumer does not wait for the
180 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
181 * leakage may occur. Therefore, it is good programming practice to tear down a
182 * QP that is associated with an SRQ by using the following process:
183 *
184 * - Put the QP in the Error State
185 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
186 * - either:
187 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
188 * to be empty or the number of Poll CQ operations has exceeded
189 * CQ capacity size;
190 * - or
191 * post another WR that completes on the same CQ and wait for this
192 * WR to return as a WC;
193 * - and then invoke a Destroy QP or Reset QP.
194 *
195 * We use the second option and wait for a completion on the
ec56dc0b 196 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 197 */
198
199enum ipoib_cm_state {
200 IPOIB_CM_RX_LIVE,
201 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
202 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
203};
204
839fcaba 205struct ipoib_cm_rx {
2337f809
RD		 206 struct ib_cm_id *id;
207 struct ib_qp *qp;
68e995a2 208 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 209 struct list_head list;
210 struct net_device *dev;
211 unsigned long jiffies;
212 enum ipoib_cm_state state;
68e995a2 213 int recv_count;
839fcaba
MT		 214};
215
216struct ipoib_cm_tx {
2337f809
RD		 217 struct ib_cm_id *id;
218 struct ib_qp *qp;
839fcaba
MT		 219 struct list_head list;
220 struct net_device *dev;
221 struct ipoib_neigh *neigh;
222 struct ipoib_path *path;
e112373f 223 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 224 unsigned tx_head;
225 unsigned tx_tail;
226 unsigned long flags;
227 u32 mtu;
839fcaba
MT		 228};
229
230struct ipoib_cm_rx_buf {
231 struct sk_buff *skb;
232 u64 mapping[IPOIB_CM_RX_SG];
233};
234
235struct ipoib_cm_dev_priv {
2337f809 236 struct ib_srq *srq;
839fcaba 237 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 238 struct ib_cm_id *id;
239 struct list_head passive_ids; /* state: LIVE */
240 struct list_head rx_error_list; /* state: ERROR */
241 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
242 struct list_head rx_drain_list; /* state: FLUSH, drain started */
243 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 244 struct work_struct start_task;
245 struct work_struct reap_task;
246 struct work_struct skb_task;
518b1646 247 struct work_struct rx_reap_task;
839fcaba
MT		 248 struct delayed_work stale_task;
249 struct sk_buff_head skb_queue;
2337f809
RD		 250 struct list_head start_list;
251 struct list_head reap_list;
252 struct ib_wc ibwc[IPOIB_NUM_WC];
253 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 254 struct ib_recv_wr rx_wr;
68e995a2 255 int nonsrq_conn_qp;
586a6934
PS		 256 int max_cm_mtu;
257 int num_frags;
839fcaba
MT		 258};
259
28d52b3c
EC		 260struct ipoib_ethtool_st {
261 u16 coalesce_usecs;
262 u16 max_coalesced_frames;
263};
264
66172c09
SP		 265struct ipoib_neigh_table;
266
b63b70d8 267struct ipoib_neigh_hash {
66172c09 268 struct ipoib_neigh_table *ntbl;
b63b70d8
SP		 269 struct ipoib_neigh __rcu **buckets;
270 struct rcu_head rcu;
271 u32 mask;
272 u32 size;
273};
274
275struct ipoib_neigh_table {
276 struct ipoib_neigh_hash __rcu *htbl;
277 rwlock_t rwlock;
278 atomic_t entries;
279 struct completion flushed;
66172c09 280 struct completion deleted;
b63b70d8
SP		 281};
282
1da177e4 283/*
943c246e
RD		 284 * Device private locking: network stack tx_lock protects members used
285 * in TX fast path, lock protects everything else. lock nests inside
286 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 287 */
288struct ipoib_dev_priv {
289 spinlock_t lock;
290
291 struct net_device *dev;
292
bea3348e
SH		 293 struct napi_struct napi;
294
1da177e4
LT		 295 unsigned long flags;
296
95ed644f 297 struct mutex vlan_mutex;
1da177e4
LT		 298
299 struct rb_root path_tree;
300 struct list_head path_list;
301
b63b70d8
SP		 302 struct ipoib_neigh_table ntbl;
303
1da177e4
LT		 304 struct ipoib_mcast *broadcast;
305 struct list_head multicast_list;
306 struct rb_root multicast_tree;
307
26bbf13c 308 struct delayed_work pkey_poll_task;
c4028958 309 struct delayed_work mcast_task;
e8224e4b 310 struct work_struct carrier_on_task;
ee1e2c82
MS		 311 struct work_struct flush_light;
312 struct work_struct flush_normal;
313 struct work_struct flush_heavy;
1da177e4 314 struct work_struct restart_task;
c4028958 315 struct delayed_work ah_reap_task;
b63b70d8 316 struct delayed_work neigh_reap_task;
1da177e4 317 struct ib_device *ca;
2337f809
RD		 318 u8 port;
319 u16 pkey;
320 u16 pkey_index;
321 struct ib_pd *pd;
322 struct ib_mr *mr;
f56bcd80
EC		 323 struct ib_cq *recv_cq;
324 struct ib_cq *send_cq;
2337f809
RD		 325 struct ib_qp *qp;
326 u32 qkey;
1da177e4
LT		 327
328 union ib_gid local_gid;
2337f809 329 u16 local_lid;
1da177e4
LT		 330
331 unsigned int admin_mtu;
332 unsigned int mcast_mtu;
bc7b3a36 333 unsigned int max_ib_mtu;
1da177e4 334
1993d683 335 struct ipoib_rx_buf *rx_ring;
1da177e4 336
1993d683 337 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 338 unsigned tx_head;
339 unsigned tx_tail;
7143740d 340 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 341 struct ib_send_wr tx_wr;
2337f809 342 unsigned tx_outstanding;
f56bcd80 343 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 344
bc7b3a36
SM		 345 struct ib_recv_wr rx_wr;
346 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
347
1da177e4
LT		 348 struct ib_wc ibwc[IPOIB_NUM_WC];
349
350 struct list_head dead_ahs;
351
352 struct ib_event_handler event_handler;
353
1da177e4
LT		 354 struct net_device *parent;
355 struct list_head child_intfs;
356 struct list_head list;
357
839fcaba
MT		 358#ifdef CONFIG_INFINIBAND_IPOIB_CM
359 struct ipoib_cm_dev_priv cm;
360#endif
361
1da177e4
LT		 362#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
363 struct list_head fs_list;
364 struct dentry *mcg_dentry;
1732b0ef 365 struct dentry *path_dentry;
1da177e4 366#endif
40ca1988 367 int hca_caps;
28d52b3c 368 struct ipoib_ethtool_st ethtool;
57ce41d1 369 struct timer_list poll_timer;
1da177e4
LT		 370};
371
372struct ipoib_ah {
373 struct net_device *dev;
2337f809 374 struct ib_ah *ah;
1da177e4 375 struct list_head list;
2337f809
RD		 376 struct kref ref;
377 unsigned last_send;
1da177e4
LT		 378};
379
380struct ipoib_path {
381 struct net_device *dev;
382 struct ib_sa_path_rec pathrec;
383 struct ipoib_ah *ah;
384 struct sk_buff_head queue;
385
386 struct list_head neigh_list;
387
2337f809 388 int query_id;
1da177e4
LT		 389 struct ib_sa_query *query;
390 struct completion done;
391
2337f809 392 struct rb_node rb_node;
1da177e4 393 struct list_head list;
ee1e2c82 394 int valid;
1da177e4
LT		 395};
396
397struct ipoib_neigh {
398 struct ipoib_ah *ah;
839fcaba
MT		 399#ifdef CONFIG_INFINIBAND_IPOIB_CM
400 struct ipoib_cm_tx *cm;
401#endif
b63b70d8 402 u8 daddr[INFINIBAND_ALEN];
1da177e4
LT		 403 struct sk_buff_head queue;
404
732a2170 405 struct net_device *dev;
1da177e4
LT		 406
407 struct list_head list;
b63b70d8
SP		 408 struct ipoib_neigh __rcu *hnext;
409 struct rcu_head rcu;
410 atomic_t refcnt;
411 unsigned long alive;
1da177e4
LT		 412};
413
bc7b3a36
SM		 414#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
415#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
416
417static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
418{
419 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
420}
421
b63b70d8
SP		 422void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
423static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
1da177e4 424{
b63b70d8
SP		 425 if (atomic_dec_and_test(&neigh->refcnt))
426 ipoib_neigh_dtor(neigh);
1da177e4 427}
b63b70d8
SP		 428struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
429struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
732a2170 430 struct net_device *dev);
b63b70d8
SP		 431void ipoib_neigh_free(struct ipoib_neigh *neigh);
432void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
d2e0655e 433
1da177e4
LT		 434extern struct workqueue_struct *ipoib_workqueue;
435
436/* functions */
437
bea3348e 438int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 439void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 440void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 441
442struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
443 struct ib_pd *pd, struct ib_ah_attr *attr);
444void ipoib_free_ah(struct kref *kref);
445static inline void ipoib_put_ah(struct ipoib_ah *ah)
446{
447 kref_put(&ah->ref, ipoib_free_ah);
448}
8ae5a8a2 449int ipoib_open(struct net_device *dev);
1da177e4 450int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 451int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 452
453void ipoib_send(struct net_device *dev, struct sk_buff *skb,
454 struct ipoib_ah *address, u32 qpn);
c4028958 455void ipoib_reap_ah(struct work_struct *work);
1da177e4 456
ee1e2c82 457void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 458void ipoib_flush_paths(struct net_device *dev);
459struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
460
461int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 462void ipoib_ib_dev_flush_light(struct work_struct *work);
463void ipoib_ib_dev_flush_normal(struct work_struct *work);
464void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 465void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 466void ipoib_ib_dev_cleanup(struct net_device *dev);
467
468int ipoib_ib_dev_open(struct net_device *dev);
469int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 470int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 471int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 472
473int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
474void ipoib_dev_cleanup(struct net_device *dev);
475
c4028958 476void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 477void ipoib_mcast_carrier_on_task(struct work_struct *work);
b63b70d8 478void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
1da177e4 479
c4028958 480void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 481int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 482int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 483
484void ipoib_mcast_dev_down(struct net_device *dev);
485void ipoib_mcast_dev_flush(struct net_device *dev);
486
8ae5a8a2 487#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 488struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 489int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
490void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
491 union ib_gid *gid,
492 unsigned long *created,
493 unsigned int *queuelen,
494 unsigned int *complete,
495 unsigned int *send_only);
1732b0ef
RD		 496
497struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
498int ipoib_path_iter_next(struct ipoib_path_iter *iter);
499void ipoib_path_iter_read(struct ipoib_path_iter *iter,
500 struct ipoib_path *path);
8ae5a8a2 501#endif
1da177e4
LT		 502
503int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 504 union ib_gid *mgid, int set_qkey);
1da177e4 505
5b6810e0 506int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 507int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
508void ipoib_transport_dev_cleanup(struct net_device *dev);
509
510void ipoib_event(struct ib_event_handler *handler,
511 struct ib_event *record);
512
513int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
514int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
515
c4028958 516void ipoib_pkey_poll(struct work_struct *work);
1da177e4 517int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 518void ipoib_drain_cq(struct net_device *dev);
1da177e4 519
82c24c18 520void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 521int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 522
839fcaba
MT		 523#ifdef CONFIG_INFINIBAND_IPOIB_CM
524
2337f809
RD		 525#define IPOIB_FLAGS_RC 0x80
526#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 527
528/* We don't support UC connections at the moment */
529#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
530
68e995a2
PS		 531extern int ipoib_max_conn_qp;
532
839fcaba
MT		 533static inline int ipoib_cm_admin_enabled(struct net_device *dev)
534{
535 struct ipoib_dev_priv *priv = netdev_priv(dev);
536 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
537 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
538}
539
b63b70d8 540static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 541{
542 struct ipoib_dev_priv *priv = netdev_priv(dev);
b63b70d8 543 return IPOIB_CM_SUPPORTED(hwaddr) &&
839fcaba
MT		 544 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
545}
546
547static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
548
549{
550 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
551}
552
553static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
554{
555 return neigh->cm;
556}
557
558static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
559{
560 neigh->cm = tx;
561}
562
68e995a2
PS		 563static inline int ipoib_cm_has_srq(struct net_device *dev)
564{
565 struct ipoib_dev_priv *priv = netdev_priv(dev);
566 return !!priv->cm.srq;
567}
568
586a6934
PS		 569static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
570{
571 struct ipoib_dev_priv *priv = netdev_priv(dev);
572 return priv->cm.max_cm_mtu;
573}
574
839fcaba
MT		 575void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
576int ipoib_cm_dev_open(struct net_device *dev);
577void ipoib_cm_dev_stop(struct net_device *dev);
578int ipoib_cm_dev_init(struct net_device *dev);
579int ipoib_cm_add_mode_attr(struct net_device *dev);
580void ipoib_cm_dev_cleanup(struct net_device *dev);
581struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
582 struct ipoib_neigh *neigh);
583void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 584void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 585 unsigned int mtu);
586void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 587void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 588#else
589
590struct ipoib_cm_tx;
591
68e995a2
PS		 592#define ipoib_max_conn_qp 0
593
839fcaba
MT		 594static inline int ipoib_cm_admin_enabled(struct net_device *dev)
595{
596 return 0;
597}
b63b70d8 598static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 599
600{
601 return 0;
602}
603
604static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
605
606{
607 return 0;
608}
609
610static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
611{
612 return NULL;
613}
614
615static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
616{
617}
618
68e995a2
PS		 619static inline int ipoib_cm_has_srq(struct net_device *dev)
620{
621 return 0;
622}
623
586a6934
PS		 624static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
625{
626 return 0;
627}
628
839fcaba
MT		 629static inline
630void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
631{
632 return;
633}
634
635static inline
636int ipoib_cm_dev_open(struct net_device *dev)
637{
638 return 0;
639}
640
641static inline
642void ipoib_cm_dev_stop(struct net_device *dev)
643{
644 return;
645}
646
647static inline
648int ipoib_cm_dev_init(struct net_device *dev)
649{
650 return -ENOSYS;
651}
652
653static inline
654void ipoib_cm_dev_cleanup(struct net_device *dev)
655{
656 return;
657}
658
659static inline
660struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
661 struct ipoib_neigh *neigh)
662{
663 return NULL;
664}
665
666static inline
667void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
668{
669 return;
670}
671
672static inline
673int ipoib_cm_add_mode_attr(struct net_device *dev)
674{
675 return 0;
676}
677
2337f809 678static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 679 unsigned int mtu)
680{
681 dev_kfree_skb_any(skb);
682}
683
684static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
685{
686}
687
1b524963
MT		 688static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
689{
690}
839fcaba
MT		 691#endif
692
1da177e4 693#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 694void ipoib_create_debug_files(struct net_device *dev);
695void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 696int ipoib_register_debugfs(void);
697void ipoib_unregister_debugfs(void);
698#else
1732b0ef
RD		 699static inline void ipoib_create_debug_files(struct net_device *dev) { }
700static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 701static inline int ipoib_register_debugfs(void) { return 0; }
702static inline void ipoib_unregister_debugfs(void) { }
703#endif
704
1da177e4
LT		 705#define ipoib_printk(level, priv, format, arg...) \
706 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
707#define ipoib_warn(priv, format, arg...) \
708 ipoib_printk(KERN_WARNING, priv, format , ## arg)
709
0f485251
SM		 710extern int ipoib_sendq_size;
711extern int ipoib_recvq_size;
1da177e4 712
c1a0b23b
MT		 713extern struct ib_sa_client ipoib_sa_client;
714
1da177e4
LT		 715#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
716extern int ipoib_debug_level;
717
718#define ipoib_dbg(priv, format, arg...) \
2337f809 719 do { \
1da177e4
LT		 720 if (ipoib_debug_level > 0) \
721 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
722 } while (0)
723#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 724 do { \
1da177e4
LT		 725 if (mcast_debug_level > 0) \
726 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
727 } while (0)
728#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
729#define ipoib_dbg(priv, format, arg...) \
730 do { (void) (priv); } while (0)
731#define ipoib_dbg_mcast(priv, format, arg...) \
732 do { (void) (priv); } while (0)
733#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
734
735#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
736#define ipoib_dbg_data(priv, format, arg...) \
2337f809 737 do { \
1da177e4
LT		 738 if (data_debug_level > 0) \
739 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
740 } while (0)
741#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
742#define ipoib_dbg_data(priv, format, arg...) \
743 do { (void) (priv); } while (0)
744#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
745
839fcaba
MT		 746#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
747
1da177e4 748#endif /* _IPOIB_H */
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