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IB/ipoib: Use dedicated workqueues per interface
[mirror_ubuntu-artful-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,
2337f809
RD		 89 IPOIB_FLAG_SUBINTERFACE = 5,
90 IPOIB_MCAST_RUN = 6,
91 IPOIB_STOP_REAPER = 7,
2337f809 92 IPOIB_FLAG_ADMIN_CM = 9,
1b524963 93 IPOIB_FLAG_UMCAST = 10,
b63b70d8
SP		 94 IPOIB_STOP_NEIGH_GC = 11,
95 IPOIB_NEIGH_TBL_FLUSH = 12,
1da177e4
LT		 96
97 IPOIB_MAX_BACKOFF_SECONDS = 16,
98
2337f809 99 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
1da177e4 100 IPOIB_MCAST_FLAG_SENDONLY = 1,
e7a623d2 101 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
1da177e4 102 IPOIB_MCAST_FLAG_ATTACHED = 3,
e7a623d2 103 IPOIB_MCAST_JOIN_STARTED = 4,
f56bcd80
EC		 104
105 MAX_SEND_CQE = 16,
f89271da 106 IPOIB_CM_COPYBREAK = 256,
9baa0b03
OG		 107
108 IPOIB_NON_CHILD = 0,
109 IPOIB_LEGACY_CHILD = 1,
110 IPOIB_RTNL_CHILD = 2,
1da177e4
LT		 111};
112
839fcaba
MT		 113#define IPOIB_OP_RECV (1ul << 31)
114#ifdef CONFIG_INFINIBAND_IPOIB_CM
1b524963 115#define IPOIB_OP_CM (1ul << 30)
839fcaba 116#else
1b524963 117#define IPOIB_OP_CM (0)
839fcaba
MT		 118#endif
119
9d1ad66e
SP		 120#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
121
1da177e4
LT		 122/* structs */
123
124struct ipoib_header {
97f52eb4
SH		 125 __be16 proto;
126 u16 reserved;
1da177e4
LT		 127};
128
936d7de3
RD		 129struct ipoib_cb {
130 struct qdisc_skb_cb qdisc_cb;
131 u8 hwaddr[INFINIBAND_ALEN];
1da177e4
LT		 132};
133
b49fe362
ED		 134static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb)
135{
136 BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb));
137 return (struct ipoib_cb *)skb->cb;
138}
139
81668838
SH		 140/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
141struct ipoib_mcast {
142 struct ib_sa_mcmember_rec mcmember;
143 struct ib_sa_multicast *mc;
2337f809 144 struct ipoib_ah *ah;
81668838
SH		 145
146 struct rb_node rb_node;
147 struct list_head list;
148
149 unsigned long created;
150 unsigned long backoff;
151
152 unsigned long flags;
153 unsigned char logcount;
154
155 struct list_head neigh_list;
156
157 struct sk_buff_head pkt_queue;
158
159 struct net_device *dev;
a9c8ba58 160 struct completion done;
81668838 161};
1da177e4 162
1993d683
RD		 163struct ipoib_rx_buf {
164 struct sk_buff *skb;
bc7b3a36 165 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 166};
167
168struct ipoib_tx_buf {
1da177e4 169 struct sk_buff *skb;
7143740d 170 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 171};
172
e112373f
EC		 173struct ipoib_cm_tx_buf {
174 struct sk_buff *skb;
175 u64 mapping;
176};
177
839fcaba
MT		 178struct ib_cm_id;
179
180struct ipoib_cm_data {
181 __be32 qpn; /* High byte MUST be ignored on receive */
182 __be32 mtu;
183};
184
518b1646
MT		 185/*
186 * Quoting 10.3.1 Queue Pair and EE Context States:
187 *
188 * Note, for QPs that are associated with an SRQ, the Consumer should take the
189 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
190 * Reset State. The Consumer may invoke the Destroy QP without first performing
191 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
192 * Last WQE Reached Event. However, if the Consumer does not wait for the
193 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
194 * leakage may occur. Therefore, it is good programming practice to tear down a
195 * QP that is associated with an SRQ by using the following process:
196 *
197 * - Put the QP in the Error State
198 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
199 * - either:
200 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
201 * to be empty or the number of Poll CQ operations has exceeded
202 * CQ capacity size;
203 * - or
204 * post another WR that completes on the same CQ and wait for this
205 * WR to return as a WC;
206 * - and then invoke a Destroy QP or Reset QP.
207 *
208 * We use the second option and wait for a completion on the
ec56dc0b 209 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 210 */
211
212enum ipoib_cm_state {
213 IPOIB_CM_RX_LIVE,
214 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
215 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
216};
217
839fcaba 218struct ipoib_cm_rx {
2337f809
RD		 219 struct ib_cm_id *id;
220 struct ib_qp *qp;
68e995a2 221 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 222 struct list_head list;
223 struct net_device *dev;
224 unsigned long jiffies;
225 enum ipoib_cm_state state;
68e995a2 226 int recv_count;
839fcaba
MT		 227};
228
229struct ipoib_cm_tx {
2337f809
RD		 230 struct ib_cm_id *id;
231 struct ib_qp *qp;
839fcaba
MT		 232 struct list_head list;
233 struct net_device *dev;
234 struct ipoib_neigh *neigh;
235 struct ipoib_path *path;
e112373f 236 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 237 unsigned tx_head;
238 unsigned tx_tail;
239 unsigned long flags;
240 u32 mtu;
839fcaba
MT		 241};
242
243struct ipoib_cm_rx_buf {
244 struct sk_buff *skb;
245 u64 mapping[IPOIB_CM_RX_SG];
246};
247
248struct ipoib_cm_dev_priv {
2337f809 249 struct ib_srq *srq;
839fcaba 250 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 251 struct ib_cm_id *id;
252 struct list_head passive_ids; /* state: LIVE */
253 struct list_head rx_error_list; /* state: ERROR */
254 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
255 struct list_head rx_drain_list; /* state: FLUSH, drain started */
256 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 257 struct work_struct start_task;
258 struct work_struct reap_task;
259 struct work_struct skb_task;
518b1646 260 struct work_struct rx_reap_task;
839fcaba
MT		 261 struct delayed_work stale_task;
262 struct sk_buff_head skb_queue;
2337f809
RD		 263 struct list_head start_list;
264 struct list_head reap_list;
265 struct ib_wc ibwc[IPOIB_NUM_WC];
266 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 267 struct ib_recv_wr rx_wr;
68e995a2 268 int nonsrq_conn_qp;
586a6934
PS		 269 int max_cm_mtu;
270 int num_frags;
839fcaba
MT		 271};
272
28d52b3c
EC		 273struct ipoib_ethtool_st {
274 u16 coalesce_usecs;
275 u16 max_coalesced_frames;
276};
277
66172c09
SP		 278struct ipoib_neigh_table;
279
b63b70d8 280struct ipoib_neigh_hash {
66172c09 281 struct ipoib_neigh_table *ntbl;
b63b70d8
SP		 282 struct ipoib_neigh __rcu **buckets;
283 struct rcu_head rcu;
284 u32 mask;
285 u32 size;
286};
287
288struct ipoib_neigh_table {
289 struct ipoib_neigh_hash __rcu *htbl;
b63b70d8
SP		 290 atomic_t entries;
291 struct completion flushed;
66172c09 292 struct completion deleted;
b63b70d8
SP		 293};
294
1da177e4 295/*
943c246e
RD		 296 * Device private locking: network stack tx_lock protects members used
297 * in TX fast path, lock protects everything else. lock nests inside
298 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 299 */
300struct ipoib_dev_priv {
301 spinlock_t lock;
302
303 struct net_device *dev;
304
bea3348e
SH		 305 struct napi_struct napi;
306
1da177e4
LT		 307 unsigned long flags;
308
f47944cc 309 struct rw_semaphore vlan_rwsem;
1da177e4
LT		 310
311 struct rb_root path_tree;
312 struct list_head path_list;
313
b63b70d8
SP		 314 struct ipoib_neigh_table ntbl;
315
1da177e4
LT		 316 struct ipoib_mcast *broadcast;
317 struct list_head multicast_list;
318 struct rb_root multicast_tree;
319
0b39578b 320 struct workqueue_struct *wq;
c4028958 321 struct delayed_work mcast_task;
e8224e4b 322 struct work_struct carrier_on_task;
ee1e2c82
MS		 323 struct work_struct flush_light;
324 struct work_struct flush_normal;
325 struct work_struct flush_heavy;
1da177e4 326 struct work_struct restart_task;
c4028958 327 struct delayed_work ah_reap_task;
b63b70d8 328 struct delayed_work neigh_reap_task;
1da177e4 329 struct ib_device *ca;
2337f809
RD		 330 u8 port;
331 u16 pkey;
332 u16 pkey_index;
333 struct ib_pd *pd;
334 struct ib_mr *mr;
f56bcd80
EC		 335 struct ib_cq *recv_cq;
336 struct ib_cq *send_cq;
2337f809
RD		 337 struct ib_qp *qp;
338 u32 qkey;
1da177e4
LT		 339
340 union ib_gid local_gid;
2337f809 341 u16 local_lid;
1da177e4
LT		 342
343 unsigned int admin_mtu;
344 unsigned int mcast_mtu;
bc7b3a36 345 unsigned int max_ib_mtu;
1da177e4 346
1993d683 347 struct ipoib_rx_buf *rx_ring;
1da177e4 348
1993d683 349 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 350 unsigned tx_head;
351 unsigned tx_tail;
7143740d 352 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 353 struct ib_send_wr tx_wr;
2337f809 354 unsigned tx_outstanding;
f56bcd80 355 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 356
bc7b3a36
SM		 357 struct ib_recv_wr rx_wr;
358 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
359
1da177e4
LT		 360 struct ib_wc ibwc[IPOIB_NUM_WC];
361
362 struct list_head dead_ahs;
363
364 struct ib_event_handler event_handler;
365
1da177e4
LT		 366 struct net_device *parent;
367 struct list_head child_intfs;
368 struct list_head list;
9baa0b03 369 int child_type;
1da177e4 370
839fcaba
MT		 371#ifdef CONFIG_INFINIBAND_IPOIB_CM
372 struct ipoib_cm_dev_priv cm;
373#endif
374
1da177e4
LT		 375#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
376 struct list_head fs_list;
377 struct dentry *mcg_dentry;
1732b0ef 378 struct dentry *path_dentry;
1da177e4 379#endif
40ca1988 380 int hca_caps;
28d52b3c 381 struct ipoib_ethtool_st ethtool;
57ce41d1 382 struct timer_list poll_timer;
1da177e4
LT		 383};
384
385struct ipoib_ah {
386 struct net_device *dev;
2337f809 387 struct ib_ah *ah;
1da177e4 388 struct list_head list;
2337f809
RD		 389 struct kref ref;
390 unsigned last_send;
1da177e4
LT		 391};
392
393struct ipoib_path {
394 struct net_device *dev;
395 struct ib_sa_path_rec pathrec;
396 struct ipoib_ah *ah;
397 struct sk_buff_head queue;
398
399 struct list_head neigh_list;
400
2337f809 401 int query_id;
1da177e4
LT		 402 struct ib_sa_query *query;
403 struct completion done;
404
2337f809 405 struct rb_node rb_node;
1da177e4 406 struct list_head list;
ee1e2c82 407 int valid;
1da177e4
LT		 408};
409
410struct ipoib_neigh {
411 struct ipoib_ah *ah;
839fcaba
MT		 412#ifdef CONFIG_INFINIBAND_IPOIB_CM
413 struct ipoib_cm_tx *cm;
414#endif
b63b70d8 415 u8 daddr[INFINIBAND_ALEN];
1da177e4
LT		 416 struct sk_buff_head queue;
417
732a2170 418 struct net_device *dev;
1da177e4
LT		 419
420 struct list_head list;
b63b70d8
SP		 421 struct ipoib_neigh __rcu *hnext;
422 struct rcu_head rcu;
423 atomic_t refcnt;
424 unsigned long alive;
1da177e4
LT		 425};
426
bc7b3a36
SM		 427#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
428#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
429
430static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
431{
432 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
433}
434
b63b70d8
SP		 435void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
436static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
1da177e4 437{
b63b70d8
SP		 438 if (atomic_dec_and_test(&neigh->refcnt))
439 ipoib_neigh_dtor(neigh);
1da177e4 440}
b63b70d8
SP		 441struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
442struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
732a2170 443 struct net_device *dev);
b63b70d8
SP		 444void ipoib_neigh_free(struct ipoib_neigh *neigh);
445void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
d2e0655e 446
1da177e4
LT		 447extern struct workqueue_struct *ipoib_workqueue;
448
449/* functions */
450
bea3348e 451int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 452void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 453void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 454
455struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
456 struct ib_pd *pd, struct ib_ah_attr *attr);
457void ipoib_free_ah(struct kref *kref);
458static inline void ipoib_put_ah(struct ipoib_ah *ah)
459{
460 kref_put(&ah->ref, ipoib_free_ah);
461}
8ae5a8a2 462int ipoib_open(struct net_device *dev);
1da177e4 463int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 464int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 465
466void ipoib_send(struct net_device *dev, struct sk_buff *skb,
467 struct ipoib_ah *address, u32 qpn);
c4028958 468void ipoib_reap_ah(struct work_struct *work);
1da177e4 469
ee1e2c82 470void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 471void ipoib_flush_paths(struct net_device *dev);
472struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
473
474int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 475void ipoib_ib_dev_flush_light(struct work_struct *work);
476void ipoib_ib_dev_flush_normal(struct work_struct *work);
477void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 478void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 479void ipoib_ib_dev_cleanup(struct net_device *dev);
480
a84544a4 481int ipoib_ib_dev_open(struct net_device *dev, int flush);
1da177e4 482int ipoib_ib_dev_up(struct net_device *dev);
a84544a4
RD		 483int ipoib_ib_dev_down(struct net_device *dev, int flush);
484int ipoib_ib_dev_stop(struct net_device *dev, int flush);
db84f880 485void ipoib_pkey_dev_check_presence(struct net_device *dev);
1da177e4
LT		 486
487int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
488void ipoib_dev_cleanup(struct net_device *dev);
489
c4028958 490void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 491void ipoib_mcast_carrier_on_task(struct work_struct *work);
b63b70d8 492void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
1da177e4 493
c4028958 494void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 495int ipoib_mcast_start_thread(struct net_device *dev);
4e0ab200 496int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 497
498void ipoib_mcast_dev_down(struct net_device *dev);
499void ipoib_mcast_dev_flush(struct net_device *dev);
500
8ae5a8a2 501#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 502struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 503int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
504void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
505 union ib_gid *gid,
506 unsigned long *created,
507 unsigned int *queuelen,
508 unsigned int *complete,
509 unsigned int *send_only);
1732b0ef
RD		 510
511struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
512int ipoib_path_iter_next(struct ipoib_path_iter *iter);
513void ipoib_path_iter_read(struct ipoib_path_iter *iter,
514 struct ipoib_path *path);
8ae5a8a2 515#endif
1da177e4
LT		 516
517int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 518 union ib_gid *mgid, int set_qkey);
1da177e4 519
5b6810e0 520int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 521int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
522void ipoib_transport_dev_cleanup(struct net_device *dev);
523
524void ipoib_event(struct ib_event_handler *handler,
525 struct ib_event *record);
526
527int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
528int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
529
9baa0b03
OG		 530int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
531 u16 pkey, int child_type);
532
533int __init ipoib_netlink_init(void);
534void __exit ipoib_netlink_fini(void);
535
862096a8
OG		 536void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
537int ipoib_set_mode(struct net_device *dev, const char *buf);
538
9baa0b03
OG		 539void ipoib_setup(struct net_device *dev);
540
db84f880 541void ipoib_pkey_open(struct ipoib_dev_priv *priv);
2dfbfc37 542void ipoib_drain_cq(struct net_device *dev);
1da177e4 543
82c24c18 544void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 545int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 546
2337f809
RD		 547#define IPOIB_FLAGS_RC 0x80
548#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 549
550/* We don't support UC connections at the moment */
551#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
552
71d9c5f9
RD		 553#ifdef CONFIG_INFINIBAND_IPOIB_CM
554
68e995a2
PS		 555extern int ipoib_max_conn_qp;
556
839fcaba
MT		 557static inline int ipoib_cm_admin_enabled(struct net_device *dev)
558{
559 struct ipoib_dev_priv *priv = netdev_priv(dev);
560 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
561 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
562}
563
b63b70d8 564static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 565{
566 struct ipoib_dev_priv *priv = netdev_priv(dev);
b63b70d8 567 return IPOIB_CM_SUPPORTED(hwaddr) &&
839fcaba
MT		 568 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
569}
570
571static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
572
573{
574 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
575}
576
577static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
578{
579 return neigh->cm;
580}
581
582static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
583{
584 neigh->cm = tx;
585}
586
68e995a2
PS		 587static inline int ipoib_cm_has_srq(struct net_device *dev)
588{
589 struct ipoib_dev_priv *priv = netdev_priv(dev);
590 return !!priv->cm.srq;
591}
592
586a6934
PS		 593static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
594{
595 struct ipoib_dev_priv *priv = netdev_priv(dev);
596 return priv->cm.max_cm_mtu;
597}
598
839fcaba
MT		 599void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
600int ipoib_cm_dev_open(struct net_device *dev);
601void ipoib_cm_dev_stop(struct net_device *dev);
602int ipoib_cm_dev_init(struct net_device *dev);
603int ipoib_cm_add_mode_attr(struct net_device *dev);
604void ipoib_cm_dev_cleanup(struct net_device *dev);
605struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
606 struct ipoib_neigh *neigh);
607void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 608void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 609 unsigned int mtu);
610void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 611void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 612#else
613
614struct ipoib_cm_tx;
615
68e995a2
PS		 616#define ipoib_max_conn_qp 0
617
839fcaba
MT		 618static inline int ipoib_cm_admin_enabled(struct net_device *dev)
619{
620 return 0;
621}
b63b70d8 622static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 623
624{
625 return 0;
626}
627
628static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
629
630{
631 return 0;
632}
633
634static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
635{
636 return NULL;
637}
638
639static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
640{
641}
642
68e995a2
PS		 643static inline int ipoib_cm_has_srq(struct net_device *dev)
644{
645 return 0;
646}
647
586a6934
PS		 648static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
649{
650 return 0;
651}
652
839fcaba
MT		 653static inline
654void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
655{
656 return;
657}
658
659static inline
660int ipoib_cm_dev_open(struct net_device *dev)
661{
662 return 0;
663}
664
665static inline
666void ipoib_cm_dev_stop(struct net_device *dev)
667{
668 return;
669}
670
671static inline
672int ipoib_cm_dev_init(struct net_device *dev)
673{
674 return -ENOSYS;
675}
676
677static inline
678void ipoib_cm_dev_cleanup(struct net_device *dev)
679{
680 return;
681}
682
683static inline
684struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
685 struct ipoib_neigh *neigh)
686{
687 return NULL;
688}
689
690static inline
691void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
692{
693 return;
694}
695
696static inline
697int ipoib_cm_add_mode_attr(struct net_device *dev)
698{
699 return 0;
700}
701
2337f809 702static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 703 unsigned int mtu)
704{
705 dev_kfree_skb_any(skb);
706}
707
708static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
709{
710}
711
1b524963
MT		 712static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
713{
714}
839fcaba
MT		 715#endif
716
1da177e4 717#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 718void ipoib_create_debug_files(struct net_device *dev);
719void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 720int ipoib_register_debugfs(void);
721void ipoib_unregister_debugfs(void);
722#else
1732b0ef
RD		 723static inline void ipoib_create_debug_files(struct net_device *dev) { }
724static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 725static inline int ipoib_register_debugfs(void) { return 0; }
726static inline void ipoib_unregister_debugfs(void) { }
727#endif
728
1da177e4
LT		 729#define ipoib_printk(level, priv, format, arg...) \
730 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
731#define ipoib_warn(priv, format, arg...) \
732 ipoib_printk(KERN_WARNING, priv, format , ## arg)
733
0f485251
SM		 734extern int ipoib_sendq_size;
735extern int ipoib_recvq_size;
1da177e4 736
c1a0b23b
MT		 737extern struct ib_sa_client ipoib_sa_client;
738
1da177e4
LT		 739#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
740extern int ipoib_debug_level;
741
742#define ipoib_dbg(priv, format, arg...) \
2337f809 743 do { \
1da177e4
LT		 744 if (ipoib_debug_level > 0) \
745 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
746 } while (0)
747#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 748 do { \
1da177e4
LT		 749 if (mcast_debug_level > 0) \
750 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
751 } while (0)
752#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
753#define ipoib_dbg(priv, format, arg...) \
754 do { (void) (priv); } while (0)
755#define ipoib_dbg_mcast(priv, format, arg...) \
756 do { (void) (priv); } while (0)
757#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
758
759#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
760#define ipoib_dbg_data(priv, format, arg...) \
2337f809 761 do { \
1da177e4
LT		 762 if (data_debug_level > 0) \
763 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
764 } while (0)
765#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
766#define ipoib_dbg_data(priv, format, arg...) \
767 do { (void) (priv); } while (0)
768#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
769
839fcaba
MT		 770#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
771
4b48680b
YB		 772extern const char ipoib_driver_version[];
773
1da177e4 774#endif /* _IPOIB_H */
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