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IB/ipoib: Add more rtnl_link_ops callbacks
[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>
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,
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
1da177e4
LT		 120/* structs */
121
122struct ipoib_header {
97f52eb4
SH		 123 __be16 proto;
124 u16 reserved;
1da177e4
LT		 125};
126
936d7de3
RD		 127struct ipoib_cb {
128 struct qdisc_skb_cb qdisc_cb;
129 u8 hwaddr[INFINIBAND_ALEN];
1da177e4
LT		 130};
131
81668838
SH		 132/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
133struct ipoib_mcast {
134 struct ib_sa_mcmember_rec mcmember;
135 struct ib_sa_multicast *mc;
2337f809 136 struct ipoib_ah *ah;
81668838
SH		 137
138 struct rb_node rb_node;
139 struct list_head list;
140
141 unsigned long created;
142 unsigned long backoff;
143
144 unsigned long flags;
145 unsigned char logcount;
146
147 struct list_head neigh_list;
148
149 struct sk_buff_head pkt_queue;
150
151 struct net_device *dev;
152};
1da177e4 153
1993d683
RD		 154struct ipoib_rx_buf {
155 struct sk_buff *skb;
bc7b3a36 156 u64 mapping[IPOIB_UD_RX_SG];
1993d683
RD		 157};
158
159struct ipoib_tx_buf {
1da177e4 160 struct sk_buff *skb;
7143740d 161 u64 mapping[MAX_SKB_FRAGS + 1];
1da177e4
LT		 162};
163
e112373f
EC		 164struct ipoib_cm_tx_buf {
165 struct sk_buff *skb;
166 u64 mapping;
167};
168
839fcaba
MT		 169struct ib_cm_id;
170
171struct ipoib_cm_data {
172 __be32 qpn; /* High byte MUST be ignored on receive */
173 __be32 mtu;
174};
175
518b1646
MT		 176/*
177 * Quoting 10.3.1 Queue Pair and EE Context States:
178 *
179 * Note, for QPs that are associated with an SRQ, the Consumer should take the
180 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
181 * Reset State. The Consumer may invoke the Destroy QP without first performing
182 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
183 * Last WQE Reached Event. However, if the Consumer does not wait for the
184 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
185 * leakage may occur. Therefore, it is good programming practice to tear down a
186 * QP that is associated with an SRQ by using the following process:
187 *
188 * - Put the QP in the Error State
189 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
190 * - either:
191 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
192 * to be empty or the number of Poll CQ operations has exceeded
193 * CQ capacity size;
194 * - or
195 * post another WR that completes on the same CQ and wait for this
196 * WR to return as a WC;
197 * - and then invoke a Destroy QP or Reset QP.
198 *
199 * We use the second option and wait for a completion on the
ec56dc0b 200 * same CQ before destroying QPs attached to our SRQ.
518b1646
MT		 201 */
202
203enum ipoib_cm_state {
204 IPOIB_CM_RX_LIVE,
205 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
206 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
207};
208
839fcaba 209struct ipoib_cm_rx {
2337f809
RD		 210 struct ib_cm_id *id;
211 struct ib_qp *qp;
68e995a2 212 struct ipoib_cm_rx_buf *rx_ring;
2337f809
RD		 213 struct list_head list;
214 struct net_device *dev;
215 unsigned long jiffies;
216 enum ipoib_cm_state state;
68e995a2 217 int recv_count;
839fcaba
MT		 218};
219
220struct ipoib_cm_tx {
2337f809
RD		 221 struct ib_cm_id *id;
222 struct ib_qp *qp;
839fcaba
MT		 223 struct list_head list;
224 struct net_device *dev;
225 struct ipoib_neigh *neigh;
226 struct ipoib_path *path;
e112373f 227 struct ipoib_cm_tx_buf *tx_ring;
2337f809
RD		 228 unsigned tx_head;
229 unsigned tx_tail;
230 unsigned long flags;
231 u32 mtu;
839fcaba
MT		 232};
233
234struct ipoib_cm_rx_buf {
235 struct sk_buff *skb;
236 u64 mapping[IPOIB_CM_RX_SG];
237};
238
239struct ipoib_cm_dev_priv {
2337f809 240 struct ib_srq *srq;
839fcaba 241 struct ipoib_cm_rx_buf *srq_ring;
2337f809
RD		 242 struct ib_cm_id *id;
243 struct list_head passive_ids; /* state: LIVE */
244 struct list_head rx_error_list; /* state: ERROR */
245 struct list_head rx_flush_list; /* state: FLUSH, drain not started */
246 struct list_head rx_drain_list; /* state: FLUSH, drain started */
247 struct list_head rx_reap_list; /* state: FLUSH, drain done */
839fcaba
MT		 248 struct work_struct start_task;
249 struct work_struct reap_task;
250 struct work_struct skb_task;
518b1646 251 struct work_struct rx_reap_task;
839fcaba
MT		 252 struct delayed_work stale_task;
253 struct sk_buff_head skb_queue;
2337f809
RD		 254 struct list_head start_list;
255 struct list_head reap_list;
256 struct ib_wc ibwc[IPOIB_NUM_WC];
257 struct ib_sge rx_sge[IPOIB_CM_RX_SG];
839fcaba 258 struct ib_recv_wr rx_wr;
68e995a2 259 int nonsrq_conn_qp;
586a6934
PS		 260 int max_cm_mtu;
261 int num_frags;
839fcaba
MT		 262};
263
28d52b3c
EC		 264struct ipoib_ethtool_st {
265 u16 coalesce_usecs;
266 u16 max_coalesced_frames;
267};
268
66172c09
SP		 269struct ipoib_neigh_table;
270
b63b70d8 271struct ipoib_neigh_hash {
66172c09 272 struct ipoib_neigh_table *ntbl;
b63b70d8
SP		 273 struct ipoib_neigh __rcu **buckets;
274 struct rcu_head rcu;
275 u32 mask;
276 u32 size;
277};
278
279struct ipoib_neigh_table {
280 struct ipoib_neigh_hash __rcu *htbl;
b63b70d8
SP		 281 atomic_t entries;
282 struct completion flushed;
66172c09 283 struct completion deleted;
b63b70d8
SP		 284};
285
1da177e4 286/*
943c246e
RD		 287 * Device private locking: network stack tx_lock protects members used
288 * in TX fast path, lock protects everything else. lock nests inside
289 * of tx_lock (ie tx_lock must be acquired first if needed).
1da177e4
LT		 290 */
291struct ipoib_dev_priv {
292 spinlock_t lock;
293
294 struct net_device *dev;
295
bea3348e
SH		 296 struct napi_struct napi;
297
1da177e4
LT		 298 unsigned long flags;
299
95ed644f 300 struct mutex vlan_mutex;
1da177e4
LT		 301
302 struct rb_root path_tree;
303 struct list_head path_list;
304
b63b70d8
SP		 305 struct ipoib_neigh_table ntbl;
306
1da177e4
LT		 307 struct ipoib_mcast *broadcast;
308 struct list_head multicast_list;
309 struct rb_root multicast_tree;
310
26bbf13c 311 struct delayed_work pkey_poll_task;
c4028958 312 struct delayed_work mcast_task;
e8224e4b 313 struct work_struct carrier_on_task;
ee1e2c82
MS		 314 struct work_struct flush_light;
315 struct work_struct flush_normal;
316 struct work_struct flush_heavy;
1da177e4 317 struct work_struct restart_task;
c4028958 318 struct delayed_work ah_reap_task;
b63b70d8 319 struct delayed_work neigh_reap_task;
1da177e4 320 struct ib_device *ca;
2337f809
RD		 321 u8 port;
322 u16 pkey;
323 u16 pkey_index;
324 struct ib_pd *pd;
325 struct ib_mr *mr;
f56bcd80
EC		 326 struct ib_cq *recv_cq;
327 struct ib_cq *send_cq;
2337f809
RD		 328 struct ib_qp *qp;
329 u32 qkey;
1da177e4
LT		 330
331 union ib_gid local_gid;
2337f809 332 u16 local_lid;
1da177e4
LT		 333
334 unsigned int admin_mtu;
335 unsigned int mcast_mtu;
bc7b3a36 336 unsigned int max_ib_mtu;
1da177e4 337
1993d683 338 struct ipoib_rx_buf *rx_ring;
1da177e4 339
1993d683 340 struct ipoib_tx_buf *tx_ring;
2337f809
RD		 341 unsigned tx_head;
342 unsigned tx_tail;
7143740d 343 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];
1993d683 344 struct ib_send_wr tx_wr;
2337f809 345 unsigned tx_outstanding;
f56bcd80 346 struct ib_wc send_wc[MAX_SEND_CQE];
1da177e4 347
bc7b3a36
SM		 348 struct ib_recv_wr rx_wr;
349 struct ib_sge rx_sge[IPOIB_UD_RX_SG];
350
1da177e4
LT		 351 struct ib_wc ibwc[IPOIB_NUM_WC];
352
353 struct list_head dead_ahs;
354
355 struct ib_event_handler event_handler;
356
1da177e4
LT		 357 struct net_device *parent;
358 struct list_head child_intfs;
359 struct list_head list;
9baa0b03 360 int child_type;
1da177e4 361
839fcaba
MT		 362#ifdef CONFIG_INFINIBAND_IPOIB_CM
363 struct ipoib_cm_dev_priv cm;
364#endif
365
1da177e4
LT		 366#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
367 struct list_head fs_list;
368 struct dentry *mcg_dentry;
1732b0ef 369 struct dentry *path_dentry;
1da177e4 370#endif
40ca1988 371 int hca_caps;
28d52b3c 372 struct ipoib_ethtool_st ethtool;
57ce41d1 373 struct timer_list poll_timer;
1da177e4
LT		 374};
375
376struct ipoib_ah {
377 struct net_device *dev;
2337f809 378 struct ib_ah *ah;
1da177e4 379 struct list_head list;
2337f809
RD		 380 struct kref ref;
381 unsigned last_send;
1da177e4
LT		 382};
383
384struct ipoib_path {
385 struct net_device *dev;
386 struct ib_sa_path_rec pathrec;
387 struct ipoib_ah *ah;
388 struct sk_buff_head queue;
389
390 struct list_head neigh_list;
391
2337f809 392 int query_id;
1da177e4
LT		 393 struct ib_sa_query *query;
394 struct completion done;
395
2337f809 396 struct rb_node rb_node;
1da177e4 397 struct list_head list;
ee1e2c82 398 int valid;
1da177e4
LT		 399};
400
401struct ipoib_neigh {
402 struct ipoib_ah *ah;
839fcaba
MT		 403#ifdef CONFIG_INFINIBAND_IPOIB_CM
404 struct ipoib_cm_tx *cm;
405#endif
b63b70d8 406 u8 daddr[INFINIBAND_ALEN];
1da177e4
LT		 407 struct sk_buff_head queue;
408
732a2170 409 struct net_device *dev;
1da177e4
LT		 410
411 struct list_head list;
b63b70d8
SP		 412 struct ipoib_neigh __rcu *hnext;
413 struct rcu_head rcu;
414 atomic_t refcnt;
415 unsigned long alive;
1da177e4
LT		 416};
417
bc7b3a36
SM		 418#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
419#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
420
421static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
422{
423 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
424}
425
b63b70d8
SP		 426void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
427static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
1da177e4 428{
b63b70d8
SP		 429 if (atomic_dec_and_test(&neigh->refcnt))
430 ipoib_neigh_dtor(neigh);
1da177e4 431}
b63b70d8
SP		 432struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);
433struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,
732a2170 434 struct net_device *dev);
b63b70d8
SP		 435void ipoib_neigh_free(struct ipoib_neigh *neigh);
436void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);
d2e0655e 437
1da177e4
LT		 438extern struct workqueue_struct *ipoib_workqueue;
439
440/* functions */
441
bea3348e 442int ipoib_poll(struct napi_struct *napi, int budget);
1da177e4 443void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
57ce41d1 444void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr);
1da177e4
LT		 445
446struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
447 struct ib_pd *pd, struct ib_ah_attr *attr);
448void ipoib_free_ah(struct kref *kref);
449static inline void ipoib_put_ah(struct ipoib_ah *ah)
450{
451 kref_put(&ah->ref, ipoib_free_ah);
452}
8ae5a8a2 453int ipoib_open(struct net_device *dev);
1da177e4 454int ipoib_add_pkey_attr(struct net_device *dev);
335a64a5 455int ipoib_add_umcast_attr(struct net_device *dev);
1da177e4
LT		 456
457void ipoib_send(struct net_device *dev, struct sk_buff *skb,
458 struct ipoib_ah *address, u32 qpn);
c4028958 459void ipoib_reap_ah(struct work_struct *work);
1da177e4 460
ee1e2c82 461void ipoib_mark_paths_invalid(struct net_device *dev);
1da177e4
LT		 462void ipoib_flush_paths(struct net_device *dev);
463struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
464
465int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
ee1e2c82
MS		 466void ipoib_ib_dev_flush_light(struct work_struct *work);
467void ipoib_ib_dev_flush_normal(struct work_struct *work);
468void ipoib_ib_dev_flush_heavy(struct work_struct *work);
26bbf13c 469void ipoib_pkey_event(struct work_struct *work);
1da177e4
LT		 470void ipoib_ib_dev_cleanup(struct net_device *dev);
471
472int ipoib_ib_dev_open(struct net_device *dev);
473int ipoib_ib_dev_up(struct net_device *dev);
0b3ea082 474int ipoib_ib_dev_down(struct net_device *dev, int flush);
26bbf13c 475int ipoib_ib_dev_stop(struct net_device *dev, int flush);
1da177e4
LT		 476
477int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
478void ipoib_dev_cleanup(struct net_device *dev);
479
c4028958 480void ipoib_mcast_join_task(struct work_struct *work);
e8224e4b 481void ipoib_mcast_carrier_on_task(struct work_struct *work);
b63b70d8 482void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
1da177e4 483
c4028958 484void ipoib_mcast_restart_task(struct work_struct *work);
1da177e4 485int ipoib_mcast_start_thread(struct net_device *dev);
8d2cae06 486int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
1da177e4
LT		 487
488void ipoib_mcast_dev_down(struct net_device *dev);
489void ipoib_mcast_dev_flush(struct net_device *dev);
490
8ae5a8a2 491#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1da177e4 492struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
1da177e4
LT		 493int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
494void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
495 union ib_gid *gid,
496 unsigned long *created,
497 unsigned int *queuelen,
498 unsigned int *complete,
499 unsigned int *send_only);
1732b0ef
RD		 500
501struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
502int ipoib_path_iter_next(struct ipoib_path_iter *iter);
503void ipoib_path_iter_read(struct ipoib_path_iter *iter,
504 struct ipoib_path *path);
8ae5a8a2 505#endif
1da177e4
LT		 506
507int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
d0de1362 508 union ib_gid *mgid, int set_qkey);
1da177e4 509
5b6810e0 510int ipoib_init_qp(struct net_device *dev);
1da177e4
LT		 511int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
512void ipoib_transport_dev_cleanup(struct net_device *dev);
513
514void ipoib_event(struct ib_event_handler *handler,
515 struct ib_event *record);
516
517int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
518int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
519
9baa0b03
OG		 520int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,
521 u16 pkey, int child_type);
522
523int __init ipoib_netlink_init(void);
524void __exit ipoib_netlink_fini(void);
525
862096a8
OG		 526void ipoib_set_umcast(struct net_device *ndev, int umcast_val);
527int ipoib_set_mode(struct net_device *dev, const char *buf);
528
9baa0b03
OG		 529void ipoib_setup(struct net_device *dev);
530
c4028958 531void ipoib_pkey_poll(struct work_struct *work);
1da177e4 532int ipoib_pkey_dev_delay_open(struct net_device *dev);
2dfbfc37 533void ipoib_drain_cq(struct net_device *dev);
1da177e4 534
82c24c18 535void ipoib_set_ethtool_ops(struct net_device *dev);
83bb63f6 536int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca);
82c24c18 537
839fcaba
MT		 538#ifdef CONFIG_INFINIBAND_IPOIB_CM
539
2337f809
RD		 540#define IPOIB_FLAGS_RC 0x80
541#define IPOIB_FLAGS_UC 0x40
839fcaba
MT		 542
543/* We don't support UC connections at the moment */
544#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
545
68e995a2
PS		 546extern int ipoib_max_conn_qp;
547
839fcaba
MT		 548static inline int ipoib_cm_admin_enabled(struct net_device *dev)
549{
550 struct ipoib_dev_priv *priv = netdev_priv(dev);
551 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
552 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
553}
554
b63b70d8 555static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 556{
557 struct ipoib_dev_priv *priv = netdev_priv(dev);
b63b70d8 558 return IPOIB_CM_SUPPORTED(hwaddr) &&
839fcaba
MT		 559 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
560}
561
562static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
563
564{
565 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
566}
567
568static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
569{
570 return neigh->cm;
571}
572
573static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
574{
575 neigh->cm = tx;
576}
577
68e995a2
PS		 578static inline int ipoib_cm_has_srq(struct net_device *dev)
579{
580 struct ipoib_dev_priv *priv = netdev_priv(dev);
581 return !!priv->cm.srq;
582}
583
586a6934
PS		 584static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
585{
586 struct ipoib_dev_priv *priv = netdev_priv(dev);
587 return priv->cm.max_cm_mtu;
588}
589
839fcaba
MT		 590void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
591int ipoib_cm_dev_open(struct net_device *dev);
592void ipoib_cm_dev_stop(struct net_device *dev);
593int ipoib_cm_dev_init(struct net_device *dev);
594int ipoib_cm_add_mode_attr(struct net_device *dev);
595void ipoib_cm_dev_cleanup(struct net_device *dev);
596struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
597 struct ipoib_neigh *neigh);
598void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
2337f809 599void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 600 unsigned int mtu);
601void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
1b524963 602void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
839fcaba
MT		 603#else
604
605struct ipoib_cm_tx;
606
68e995a2
PS		 607#define ipoib_max_conn_qp 0
608
839fcaba
MT		 609static inline int ipoib_cm_admin_enabled(struct net_device *dev)
610{
611 return 0;
612}
b63b70d8 613static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)
839fcaba
MT		 614
615{
616 return 0;
617}
618
619static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
620
621{
622 return 0;
623}
624
625static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
626{
627 return NULL;
628}
629
630static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
631{
632}
633
68e995a2
PS		 634static inline int ipoib_cm_has_srq(struct net_device *dev)
635{
636 return 0;
637}
638
586a6934
PS		 639static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
640{
641 return 0;
642}
643
839fcaba
MT		 644static inline
645void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
646{
647 return;
648}
649
650static inline
651int ipoib_cm_dev_open(struct net_device *dev)
652{
653 return 0;
654}
655
656static inline
657void ipoib_cm_dev_stop(struct net_device *dev)
658{
659 return;
660}
661
662static inline
663int ipoib_cm_dev_init(struct net_device *dev)
664{
665 return -ENOSYS;
666}
667
668static inline
669void ipoib_cm_dev_cleanup(struct net_device *dev)
670{
671 return;
672}
673
674static inline
675struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
676 struct ipoib_neigh *neigh)
677{
678 return NULL;
679}
680
681static inline
682void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
683{
684 return;
685}
686
687static inline
688int ipoib_cm_add_mode_attr(struct net_device *dev)
689{
690 return 0;
691}
692
2337f809 693static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
839fcaba
MT		 694 unsigned int mtu)
695{
696 dev_kfree_skb_any(skb);
697}
698
699static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
700{
701}
702
1b524963
MT		 703static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
704{
705}
839fcaba
MT		 706#endif
707
1da177e4 708#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
1732b0ef
RD		 709void ipoib_create_debug_files(struct net_device *dev);
710void ipoib_delete_debug_files(struct net_device *dev);
1da177e4
LT		 711int ipoib_register_debugfs(void);
712void ipoib_unregister_debugfs(void);
713#else
1732b0ef
RD		 714static inline void ipoib_create_debug_files(struct net_device *dev) { }
715static inline void ipoib_delete_debug_files(struct net_device *dev) { }
1da177e4
LT		 716static inline int ipoib_register_debugfs(void) { return 0; }
717static inline void ipoib_unregister_debugfs(void) { }
718#endif
719
1da177e4
LT		 720#define ipoib_printk(level, priv, format, arg...) \
721 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
722#define ipoib_warn(priv, format, arg...) \
723 ipoib_printk(KERN_WARNING, priv, format , ## arg)
724
0f485251
SM		 725extern int ipoib_sendq_size;
726extern int ipoib_recvq_size;
1da177e4 727
c1a0b23b
MT		 728extern struct ib_sa_client ipoib_sa_client;
729
1da177e4
LT		 730#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
731extern int ipoib_debug_level;
732
733#define ipoib_dbg(priv, format, arg...) \
2337f809 734 do { \
1da177e4
LT		 735 if (ipoib_debug_level > 0) \
736 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
737 } while (0)
738#define ipoib_dbg_mcast(priv, format, arg...) \
2337f809 739 do { \
1da177e4
LT		 740 if (mcast_debug_level > 0) \
741 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
742 } while (0)
743#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
744#define ipoib_dbg(priv, format, arg...) \
745 do { (void) (priv); } while (0)
746#define ipoib_dbg_mcast(priv, format, arg...) \
747 do { (void) (priv); } while (0)
748#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
749
750#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
751#define ipoib_dbg_data(priv, format, arg...) \
2337f809 752 do { \
1da177e4
LT		 753 if (data_debug_level > 0) \
754 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
755 } while (0)
756#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
757#define ipoib_dbg_data(priv, format, arg...) \
758 do { (void) (priv); } while (0)
759#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
760
839fcaba
MT		 761#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
762
1da177e4 763#endif /* _IPOIB_H */
Linux kernel - Deliverables
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