]>
Commit | Line | Data |
---|---|---|
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 |
58 | enum ipoib_flush_level { |
59 | IPOIB_FLUSH_LIGHT, | |
60 | IPOIB_FLUSH_NORMAL, | |
61 | IPOIB_FLUSH_HEAVY | |
62 | }; | |
63 | ||
1da177e4 | 64 | enum { |
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, | |
2866196f | 83 | IPOIB_MAX_MCAST_QUEUE = 64, |
2337f809 RD |
84 | |
85 | IPOIB_FLAG_OPER_UP = 0, | |
86 | IPOIB_FLAG_INITIALIZED = 1, | |
87 | IPOIB_FLAG_ADMIN_UP = 2, | |
88 | IPOIB_PKEY_ASSIGNED = 3, | |
2337f809 | 89 | IPOIB_FLAG_SUBINTERFACE = 5, |
2337f809 | 90 | IPOIB_STOP_REAPER = 7, |
2337f809 | 91 | IPOIB_FLAG_ADMIN_CM = 9, |
1b524963 | 92 | IPOIB_FLAG_UMCAST = 10, |
b63b70d8 SP |
93 | IPOIB_STOP_NEIGH_GC = 11, |
94 | IPOIB_NEIGH_TBL_FLUSH = 12, | |
1da177e4 LT |
95 | |
96 | IPOIB_MAX_BACKOFF_SECONDS = 16, | |
97 | ||
2337f809 | 98 | IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ |
1da177e4 | 99 | IPOIB_MCAST_FLAG_SENDONLY = 1, |
69911416 DL |
100 | /* |
101 | * For IPOIB_MCAST_FLAG_BUSY | |
102 | * When set, in flight join and mcast->mc is unreliable | |
103 | * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or | |
104 | * haven't started yet | |
105 | * When clear and mcast->mc is valid pointer, join was successful | |
106 | */ | |
107 | IPOIB_MCAST_FLAG_BUSY = 2, | |
1da177e4 | 108 | IPOIB_MCAST_FLAG_ATTACHED = 3, |
f56bcd80 EC |
109 | |
110 | MAX_SEND_CQE = 16, | |
f89271da | 111 | IPOIB_CM_COPYBREAK = 256, |
9baa0b03 OG |
112 | |
113 | IPOIB_NON_CHILD = 0, | |
114 | IPOIB_LEGACY_CHILD = 1, | |
115 | IPOIB_RTNL_CHILD = 2, | |
1da177e4 LT |
116 | }; |
117 | ||
839fcaba MT |
118 | #define IPOIB_OP_RECV (1ul << 31) |
119 | #ifdef CONFIG_INFINIBAND_IPOIB_CM | |
1b524963 | 120 | #define IPOIB_OP_CM (1ul << 30) |
839fcaba | 121 | #else |
1b524963 | 122 | #define IPOIB_OP_CM (0) |
839fcaba MT |
123 | #endif |
124 | ||
9d1ad66e SP |
125 | #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF)) |
126 | ||
1da177e4 LT |
127 | /* structs */ |
128 | ||
129 | struct ipoib_header { | |
97f52eb4 SH |
130 | __be16 proto; |
131 | u16 reserved; | |
1da177e4 LT |
132 | }; |
133 | ||
936d7de3 RD |
134 | struct ipoib_cb { |
135 | struct qdisc_skb_cb qdisc_cb; | |
136 | u8 hwaddr[INFINIBAND_ALEN]; | |
1da177e4 LT |
137 | }; |
138 | ||
b49fe362 ED |
139 | static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb) |
140 | { | |
141 | BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb)); | |
142 | return (struct ipoib_cb *)skb->cb; | |
143 | } | |
144 | ||
81668838 SH |
145 | /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ |
146 | struct ipoib_mcast { | |
147 | struct ib_sa_mcmember_rec mcmember; | |
148 | struct ib_sa_multicast *mc; | |
2337f809 | 149 | struct ipoib_ah *ah; |
81668838 SH |
150 | |
151 | struct rb_node rb_node; | |
152 | struct list_head list; | |
153 | ||
154 | unsigned long created; | |
155 | unsigned long backoff; | |
69911416 | 156 | unsigned long delay_until; |
81668838 SH |
157 | |
158 | unsigned long flags; | |
159 | unsigned char logcount; | |
160 | ||
161 | struct list_head neigh_list; | |
162 | ||
163 | struct sk_buff_head pkt_queue; | |
164 | ||
165 | struct net_device *dev; | |
a9c8ba58 | 166 | struct completion done; |
81668838 | 167 | }; |
1da177e4 | 168 | |
1993d683 RD |
169 | struct ipoib_rx_buf { |
170 | struct sk_buff *skb; | |
bc7b3a36 | 171 | u64 mapping[IPOIB_UD_RX_SG]; |
1993d683 RD |
172 | }; |
173 | ||
174 | struct ipoib_tx_buf { | |
1da177e4 | 175 | struct sk_buff *skb; |
7143740d | 176 | u64 mapping[MAX_SKB_FRAGS + 1]; |
1da177e4 LT |
177 | }; |
178 | ||
e112373f EC |
179 | struct ipoib_cm_tx_buf { |
180 | struct sk_buff *skb; | |
181 | u64 mapping; | |
182 | }; | |
183 | ||
839fcaba MT |
184 | struct ib_cm_id; |
185 | ||
186 | struct ipoib_cm_data { | |
187 | __be32 qpn; /* High byte MUST be ignored on receive */ | |
188 | __be32 mtu; | |
189 | }; | |
190 | ||
518b1646 MT |
191 | /* |
192 | * Quoting 10.3.1 Queue Pair and EE Context States: | |
193 | * | |
194 | * Note, for QPs that are associated with an SRQ, the Consumer should take the | |
195 | * QP through the Error State before invoking a Destroy QP or a Modify QP to the | |
196 | * Reset State. The Consumer may invoke the Destroy QP without first performing | |
197 | * a Modify QP to the Error State and waiting for the Affiliated Asynchronous | |
198 | * Last WQE Reached Event. However, if the Consumer does not wait for the | |
199 | * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment | |
200 | * leakage may occur. Therefore, it is good programming practice to tear down a | |
201 | * QP that is associated with an SRQ by using the following process: | |
202 | * | |
203 | * - Put the QP in the Error State | |
204 | * - Wait for the Affiliated Asynchronous Last WQE Reached Event; | |
205 | * - either: | |
206 | * drain the CQ by invoking the Poll CQ verb and either wait for CQ | |
207 | * to be empty or the number of Poll CQ operations has exceeded | |
208 | * CQ capacity size; | |
209 | * - or | |
210 | * post another WR that completes on the same CQ and wait for this | |
211 | * WR to return as a WC; | |
212 | * - and then invoke a Destroy QP or Reset QP. | |
213 | * | |
214 | * We use the second option and wait for a completion on the | |
ec56dc0b | 215 | * same CQ before destroying QPs attached to our SRQ. |
518b1646 MT |
216 | */ |
217 | ||
218 | enum ipoib_cm_state { | |
219 | IPOIB_CM_RX_LIVE, | |
220 | IPOIB_CM_RX_ERROR, /* Ignored by stale task */ | |
221 | IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ | |
222 | }; | |
223 | ||
839fcaba | 224 | struct ipoib_cm_rx { |
2337f809 RD |
225 | struct ib_cm_id *id; |
226 | struct ib_qp *qp; | |
68e995a2 | 227 | struct ipoib_cm_rx_buf *rx_ring; |
2337f809 RD |
228 | struct list_head list; |
229 | struct net_device *dev; | |
230 | unsigned long jiffies; | |
231 | enum ipoib_cm_state state; | |
68e995a2 | 232 | int recv_count; |
839fcaba MT |
233 | }; |
234 | ||
235 | struct ipoib_cm_tx { | |
2337f809 RD |
236 | struct ib_cm_id *id; |
237 | struct ib_qp *qp; | |
839fcaba MT |
238 | struct list_head list; |
239 | struct net_device *dev; | |
240 | struct ipoib_neigh *neigh; | |
241 | struct ipoib_path *path; | |
c4268778 | 242 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
243 | unsigned tx_head; |
244 | unsigned tx_tail; | |
245 | unsigned long flags; | |
246 | u32 mtu; | |
839fcaba MT |
247 | }; |
248 | ||
249 | struct ipoib_cm_rx_buf { | |
250 | struct sk_buff *skb; | |
251 | u64 mapping[IPOIB_CM_RX_SG]; | |
252 | }; | |
253 | ||
254 | struct ipoib_cm_dev_priv { | |
2337f809 | 255 | struct ib_srq *srq; |
839fcaba | 256 | struct ipoib_cm_rx_buf *srq_ring; |
2337f809 RD |
257 | struct ib_cm_id *id; |
258 | struct list_head passive_ids; /* state: LIVE */ | |
259 | struct list_head rx_error_list; /* state: ERROR */ | |
260 | struct list_head rx_flush_list; /* state: FLUSH, drain not started */ | |
261 | struct list_head rx_drain_list; /* state: FLUSH, drain started */ | |
262 | struct list_head rx_reap_list; /* state: FLUSH, drain done */ | |
839fcaba MT |
263 | struct work_struct start_task; |
264 | struct work_struct reap_task; | |
265 | struct work_struct skb_task; | |
518b1646 | 266 | struct work_struct rx_reap_task; |
839fcaba MT |
267 | struct delayed_work stale_task; |
268 | struct sk_buff_head skb_queue; | |
2337f809 RD |
269 | struct list_head start_list; |
270 | struct list_head reap_list; | |
271 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
272 | struct ib_sge rx_sge[IPOIB_CM_RX_SG]; | |
839fcaba | 273 | struct ib_recv_wr rx_wr; |
68e995a2 | 274 | int nonsrq_conn_qp; |
586a6934 PS |
275 | int max_cm_mtu; |
276 | int num_frags; | |
839fcaba MT |
277 | }; |
278 | ||
28d52b3c EC |
279 | struct ipoib_ethtool_st { |
280 | u16 coalesce_usecs; | |
281 | u16 max_coalesced_frames; | |
282 | }; | |
283 | ||
66172c09 SP |
284 | struct ipoib_neigh_table; |
285 | ||
b63b70d8 | 286 | struct ipoib_neigh_hash { |
66172c09 | 287 | struct ipoib_neigh_table *ntbl; |
b63b70d8 SP |
288 | struct ipoib_neigh __rcu **buckets; |
289 | struct rcu_head rcu; | |
290 | u32 mask; | |
291 | u32 size; | |
292 | }; | |
293 | ||
294 | struct ipoib_neigh_table { | |
295 | struct ipoib_neigh_hash __rcu *htbl; | |
b63b70d8 SP |
296 | atomic_t entries; |
297 | struct completion flushed; | |
66172c09 | 298 | struct completion deleted; |
b63b70d8 SP |
299 | }; |
300 | ||
2c010730 ES |
301 | struct ipoib_qp_state_validate { |
302 | struct work_struct work; | |
303 | struct ipoib_dev_priv *priv; | |
304 | }; | |
305 | ||
1da177e4 | 306 | /* |
943c246e RD |
307 | * Device private locking: network stack tx_lock protects members used |
308 | * in TX fast path, lock protects everything else. lock nests inside | |
309 | * of tx_lock (ie tx_lock must be acquired first if needed). | |
1da177e4 LT |
310 | */ |
311 | struct ipoib_dev_priv { | |
312 | spinlock_t lock; | |
313 | ||
314 | struct net_device *dev; | |
315 | ||
bea3348e SH |
316 | struct napi_struct napi; |
317 | ||
1da177e4 LT |
318 | unsigned long flags; |
319 | ||
f47944cc | 320 | struct rw_semaphore vlan_rwsem; |
1da177e4 LT |
321 | |
322 | struct rb_root path_tree; | |
323 | struct list_head path_list; | |
324 | ||
b63b70d8 SP |
325 | struct ipoib_neigh_table ntbl; |
326 | ||
1da177e4 LT |
327 | struct ipoib_mcast *broadcast; |
328 | struct list_head multicast_list; | |
329 | struct rb_root multicast_tree; | |
330 | ||
0b39578b | 331 | struct workqueue_struct *wq; |
c4028958 | 332 | struct delayed_work mcast_task; |
e8224e4b | 333 | struct work_struct carrier_on_task; |
ee1e2c82 MS |
334 | struct work_struct flush_light; |
335 | struct work_struct flush_normal; | |
336 | struct work_struct flush_heavy; | |
1da177e4 | 337 | struct work_struct restart_task; |
c4028958 | 338 | struct delayed_work ah_reap_task; |
b63b70d8 | 339 | struct delayed_work neigh_reap_task; |
1da177e4 | 340 | struct ib_device *ca; |
2337f809 RD |
341 | u8 port; |
342 | u16 pkey; | |
343 | u16 pkey_index; | |
344 | struct ib_pd *pd; | |
f56bcd80 EC |
345 | struct ib_cq *recv_cq; |
346 | struct ib_cq *send_cq; | |
2337f809 RD |
347 | struct ib_qp *qp; |
348 | u32 qkey; | |
1da177e4 LT |
349 | |
350 | union ib_gid local_gid; | |
2337f809 | 351 | u16 local_lid; |
1da177e4 LT |
352 | |
353 | unsigned int admin_mtu; | |
354 | unsigned int mcast_mtu; | |
bc7b3a36 | 355 | unsigned int max_ib_mtu; |
1da177e4 | 356 | |
1993d683 | 357 | struct ipoib_rx_buf *rx_ring; |
1da177e4 | 358 | |
1993d683 | 359 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
360 | unsigned tx_head; |
361 | unsigned tx_tail; | |
7143740d | 362 | struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; |
e622f2f4 | 363 | struct ib_ud_wr tx_wr; |
2337f809 | 364 | unsigned tx_outstanding; |
f56bcd80 | 365 | struct ib_wc send_wc[MAX_SEND_CQE]; |
1da177e4 | 366 | |
bc7b3a36 SM |
367 | struct ib_recv_wr rx_wr; |
368 | struct ib_sge rx_sge[IPOIB_UD_RX_SG]; | |
369 | ||
1da177e4 LT |
370 | struct ib_wc ibwc[IPOIB_NUM_WC]; |
371 | ||
372 | struct list_head dead_ahs; | |
373 | ||
374 | struct ib_event_handler event_handler; | |
375 | ||
1da177e4 LT |
376 | struct net_device *parent; |
377 | struct list_head child_intfs; | |
378 | struct list_head list; | |
9baa0b03 | 379 | int child_type; |
1da177e4 | 380 | |
839fcaba MT |
381 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
382 | struct ipoib_cm_dev_priv cm; | |
383 | #endif | |
384 | ||
1da177e4 LT |
385 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
386 | struct list_head fs_list; | |
387 | struct dentry *mcg_dentry; | |
1732b0ef | 388 | struct dentry *path_dentry; |
1da177e4 | 389 | #endif |
40ca1988 | 390 | int hca_caps; |
28d52b3c | 391 | struct ipoib_ethtool_st ethtool; |
57ce41d1 | 392 | struct timer_list poll_timer; |
1da177e4 LT |
393 | }; |
394 | ||
395 | struct ipoib_ah { | |
396 | struct net_device *dev; | |
2337f809 | 397 | struct ib_ah *ah; |
1da177e4 | 398 | struct list_head list; |
2337f809 RD |
399 | struct kref ref; |
400 | unsigned last_send; | |
1da177e4 LT |
401 | }; |
402 | ||
403 | struct ipoib_path { | |
404 | struct net_device *dev; | |
405 | struct ib_sa_path_rec pathrec; | |
406 | struct ipoib_ah *ah; | |
407 | struct sk_buff_head queue; | |
408 | ||
409 | struct list_head neigh_list; | |
410 | ||
2337f809 | 411 | int query_id; |
1da177e4 LT |
412 | struct ib_sa_query *query; |
413 | struct completion done; | |
414 | ||
2337f809 | 415 | struct rb_node rb_node; |
1da177e4 | 416 | struct list_head list; |
ee1e2c82 | 417 | int valid; |
1da177e4 LT |
418 | }; |
419 | ||
420 | struct ipoib_neigh { | |
421 | struct ipoib_ah *ah; | |
839fcaba MT |
422 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
423 | struct ipoib_cm_tx *cm; | |
424 | #endif | |
b63b70d8 | 425 | u8 daddr[INFINIBAND_ALEN]; |
1da177e4 LT |
426 | struct sk_buff_head queue; |
427 | ||
732a2170 | 428 | struct net_device *dev; |
1da177e4 LT |
429 | |
430 | struct list_head list; | |
b63b70d8 SP |
431 | struct ipoib_neigh __rcu *hnext; |
432 | struct rcu_head rcu; | |
433 | atomic_t refcnt; | |
434 | unsigned long alive; | |
1da177e4 LT |
435 | }; |
436 | ||
bc7b3a36 SM |
437 | #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) |
438 | #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) | |
439 | ||
b63b70d8 SP |
440 | void ipoib_neigh_dtor(struct ipoib_neigh *neigh); |
441 | static inline void ipoib_neigh_put(struct ipoib_neigh *neigh) | |
1da177e4 | 442 | { |
b63b70d8 SP |
443 | if (atomic_dec_and_test(&neigh->refcnt)) |
444 | ipoib_neigh_dtor(neigh); | |
1da177e4 | 445 | } |
b63b70d8 SP |
446 | struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr); |
447 | struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, | |
732a2170 | 448 | struct net_device *dev); |
b63b70d8 SP |
449 | void ipoib_neigh_free(struct ipoib_neigh *neigh); |
450 | void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid); | |
d2e0655e | 451 | |
1da177e4 LT |
452 | extern struct workqueue_struct *ipoib_workqueue; |
453 | ||
454 | /* functions */ | |
455 | ||
bea3348e | 456 | int ipoib_poll(struct napi_struct *napi, int budget); |
1da177e4 | 457 | void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); |
57ce41d1 | 458 | void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); |
1da177e4 LT |
459 | |
460 | struct ipoib_ah *ipoib_create_ah(struct net_device *dev, | |
461 | struct ib_pd *pd, struct ib_ah_attr *attr); | |
462 | void ipoib_free_ah(struct kref *kref); | |
463 | static inline void ipoib_put_ah(struct ipoib_ah *ah) | |
464 | { | |
465 | kref_put(&ah->ref, ipoib_free_ah); | |
466 | } | |
8ae5a8a2 | 467 | int ipoib_open(struct net_device *dev); |
1da177e4 | 468 | int ipoib_add_pkey_attr(struct net_device *dev); |
335a64a5 | 469 | int ipoib_add_umcast_attr(struct net_device *dev); |
1da177e4 LT |
470 | |
471 | void ipoib_send(struct net_device *dev, struct sk_buff *skb, | |
472 | struct ipoib_ah *address, u32 qpn); | |
c4028958 | 473 | void ipoib_reap_ah(struct work_struct *work); |
1da177e4 | 474 | |
ee1e2c82 | 475 | void ipoib_mark_paths_invalid(struct net_device *dev); |
1da177e4 LT |
476 | void ipoib_flush_paths(struct net_device *dev); |
477 | struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); | |
478 | ||
479 | int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
ee1e2c82 MS |
480 | void ipoib_ib_dev_flush_light(struct work_struct *work); |
481 | void ipoib_ib_dev_flush_normal(struct work_struct *work); | |
482 | void ipoib_ib_dev_flush_heavy(struct work_struct *work); | |
26bbf13c | 483 | void ipoib_pkey_event(struct work_struct *work); |
1da177e4 LT |
484 | void ipoib_ib_dev_cleanup(struct net_device *dev); |
485 | ||
efc82eee | 486 | int ipoib_ib_dev_open(struct net_device *dev); |
1da177e4 | 487 | int ipoib_ib_dev_up(struct net_device *dev); |
efc82eee DL |
488 | int ipoib_ib_dev_down(struct net_device *dev); |
489 | int ipoib_ib_dev_stop(struct net_device *dev); | |
db84f880 | 490 | void ipoib_pkey_dev_check_presence(struct net_device *dev); |
1da177e4 LT |
491 | |
492 | int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
493 | void ipoib_dev_cleanup(struct net_device *dev); | |
494 | ||
c4028958 | 495 | void ipoib_mcast_join_task(struct work_struct *work); |
e8224e4b | 496 | void ipoib_mcast_carrier_on_task(struct work_struct *work); |
b63b70d8 | 497 | void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); |
1da177e4 | 498 | |
c4028958 | 499 | void ipoib_mcast_restart_task(struct work_struct *work); |
1da177e4 | 500 | int ipoib_mcast_start_thread(struct net_device *dev); |
efc82eee | 501 | int ipoib_mcast_stop_thread(struct net_device *dev); |
1da177e4 LT |
502 | |
503 | void ipoib_mcast_dev_down(struct net_device *dev); | |
504 | void ipoib_mcast_dev_flush(struct net_device *dev); | |
505 | ||
c4268778 YS |
506 | int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req); |
507 | void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv, | |
508 | struct ipoib_tx_buf *tx_req); | |
509 | ||
510 | static inline void ipoib_build_sge(struct ipoib_dev_priv *priv, | |
511 | struct ipoib_tx_buf *tx_req) | |
512 | { | |
513 | int i, off; | |
514 | struct sk_buff *skb = tx_req->skb; | |
515 | skb_frag_t *frags = skb_shinfo(skb)->frags; | |
516 | int nr_frags = skb_shinfo(skb)->nr_frags; | |
517 | u64 *mapping = tx_req->mapping; | |
518 | ||
519 | if (skb_headlen(skb)) { | |
520 | priv->tx_sge[0].addr = mapping[0]; | |
521 | priv->tx_sge[0].length = skb_headlen(skb); | |
522 | off = 1; | |
523 | } else | |
524 | off = 0; | |
525 | ||
526 | for (i = 0; i < nr_frags; ++i) { | |
527 | priv->tx_sge[i + off].addr = mapping[i + off]; | |
528 | priv->tx_sge[i + off].length = skb_frag_size(&frags[i]); | |
529 | } | |
e622f2f4 | 530 | priv->tx_wr.wr.num_sge = nr_frags + off; |
c4268778 YS |
531 | } |
532 | ||
8ae5a8a2 | 533 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1da177e4 | 534 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); |
1da177e4 LT |
535 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); |
536 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
537 | union ib_gid *gid, | |
538 | unsigned long *created, | |
539 | unsigned int *queuelen, | |
540 | unsigned int *complete, | |
541 | unsigned int *send_only); | |
1732b0ef RD |
542 | |
543 | struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); | |
544 | int ipoib_path_iter_next(struct ipoib_path_iter *iter); | |
545 | void ipoib_path_iter_read(struct ipoib_path_iter *iter, | |
546 | struct ipoib_path *path); | |
8ae5a8a2 | 547 | #endif |
1da177e4 LT |
548 | |
549 | int ipoib_mcast_attach(struct net_device *dev, u16 mlid, | |
d0de1362 | 550 | union ib_gid *mgid, int set_qkey); |
bd99b2e0 CL |
551 | int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast); |
552 | struct ipoib_mcast *__ipoib_mcast_find(struct net_device *dev, void *mgid); | |
1da177e4 | 553 | |
5b6810e0 | 554 | int ipoib_init_qp(struct net_device *dev); |
1da177e4 LT |
555 | int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); |
556 | void ipoib_transport_dev_cleanup(struct net_device *dev); | |
557 | ||
558 | void ipoib_event(struct ib_event_handler *handler, | |
559 | struct ib_event *record); | |
560 | ||
561 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); | |
562 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); | |
563 | ||
9baa0b03 OG |
564 | int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, |
565 | u16 pkey, int child_type); | |
566 | ||
567 | int __init ipoib_netlink_init(void); | |
568 | void __exit ipoib_netlink_fini(void); | |
569 | ||
862096a8 OG |
570 | void ipoib_set_umcast(struct net_device *ndev, int umcast_val); |
571 | int ipoib_set_mode(struct net_device *dev, const char *buf); | |
572 | ||
9baa0b03 OG |
573 | void ipoib_setup(struct net_device *dev); |
574 | ||
db84f880 | 575 | void ipoib_pkey_open(struct ipoib_dev_priv *priv); |
2dfbfc37 | 576 | void ipoib_drain_cq(struct net_device *dev); |
1da177e4 | 577 | |
82c24c18 | 578 | void ipoib_set_ethtool_ops(struct net_device *dev); |
83bb63f6 | 579 | int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); |
82c24c18 | 580 | |
2337f809 RD |
581 | #define IPOIB_FLAGS_RC 0x80 |
582 | #define IPOIB_FLAGS_UC 0x40 | |
839fcaba MT |
583 | |
584 | /* We don't support UC connections at the moment */ | |
585 | #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) | |
586 | ||
71d9c5f9 RD |
587 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
588 | ||
68e995a2 PS |
589 | extern int ipoib_max_conn_qp; |
590 | ||
839fcaba MT |
591 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
592 | { | |
593 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
594 | return IPOIB_CM_SUPPORTED(dev->dev_addr) && | |
595 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
596 | } | |
597 | ||
b63b70d8 | 598 | static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) |
839fcaba MT |
599 | { |
600 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
b63b70d8 | 601 | return IPOIB_CM_SUPPORTED(hwaddr) && |
839fcaba MT |
602 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); |
603 | } | |
604 | ||
605 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
606 | ||
607 | { | |
608 | return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); | |
609 | } | |
610 | ||
611 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
612 | { | |
613 | return neigh->cm; | |
614 | } | |
615 | ||
616 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
617 | { | |
618 | neigh->cm = tx; | |
619 | } | |
620 | ||
68e995a2 PS |
621 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
622 | { | |
623 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
624 | return !!priv->cm.srq; | |
625 | } | |
626 | ||
586a6934 PS |
627 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
628 | { | |
629 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
630 | return priv->cm.max_cm_mtu; | |
631 | } | |
632 | ||
839fcaba MT |
633 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); |
634 | int ipoib_cm_dev_open(struct net_device *dev); | |
635 | void ipoib_cm_dev_stop(struct net_device *dev); | |
636 | int ipoib_cm_dev_init(struct net_device *dev); | |
637 | int ipoib_cm_add_mode_attr(struct net_device *dev); | |
638 | void ipoib_cm_dev_cleanup(struct net_device *dev); | |
639 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
640 | struct ipoib_neigh *neigh); | |
641 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); | |
2337f809 | 642 | void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
643 | unsigned int mtu); |
644 | void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); | |
1b524963 | 645 | void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); |
839fcaba MT |
646 | #else |
647 | ||
648 | struct ipoib_cm_tx; | |
649 | ||
68e995a2 PS |
650 | #define ipoib_max_conn_qp 0 |
651 | ||
839fcaba MT |
652 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
653 | { | |
654 | return 0; | |
655 | } | |
b63b70d8 | 656 | static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) |
839fcaba MT |
657 | |
658 | { | |
659 | return 0; | |
660 | } | |
661 | ||
662 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
663 | ||
664 | { | |
665 | return 0; | |
666 | } | |
667 | ||
668 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
669 | { | |
670 | return NULL; | |
671 | } | |
672 | ||
673 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
674 | { | |
675 | } | |
676 | ||
68e995a2 PS |
677 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
678 | { | |
679 | return 0; | |
680 | } | |
681 | ||
586a6934 PS |
682 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
683 | { | |
684 | return 0; | |
685 | } | |
686 | ||
839fcaba MT |
687 | static inline |
688 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) | |
689 | { | |
690 | return; | |
691 | } | |
692 | ||
693 | static inline | |
694 | int ipoib_cm_dev_open(struct net_device *dev) | |
695 | { | |
696 | return 0; | |
697 | } | |
698 | ||
699 | static inline | |
700 | void ipoib_cm_dev_stop(struct net_device *dev) | |
701 | { | |
702 | return; | |
703 | } | |
704 | ||
705 | static inline | |
706 | int ipoib_cm_dev_init(struct net_device *dev) | |
707 | { | |
708 | return -ENOSYS; | |
709 | } | |
710 | ||
711 | static inline | |
712 | void ipoib_cm_dev_cleanup(struct net_device *dev) | |
713 | { | |
714 | return; | |
715 | } | |
716 | ||
717 | static inline | |
718 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
719 | struct ipoib_neigh *neigh) | |
720 | { | |
721 | return NULL; | |
722 | } | |
723 | ||
724 | static inline | |
725 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) | |
726 | { | |
727 | return; | |
728 | } | |
729 | ||
730 | static inline | |
731 | int ipoib_cm_add_mode_attr(struct net_device *dev) | |
732 | { | |
733 | return 0; | |
734 | } | |
735 | ||
2337f809 | 736 | static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
737 | unsigned int mtu) |
738 | { | |
739 | dev_kfree_skb_any(skb); | |
740 | } | |
741 | ||
742 | static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) | |
743 | { | |
744 | } | |
745 | ||
1b524963 MT |
746 | static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) |
747 | { | |
748 | } | |
839fcaba MT |
749 | #endif |
750 | ||
1da177e4 | 751 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1732b0ef RD |
752 | void ipoib_create_debug_files(struct net_device *dev); |
753 | void ipoib_delete_debug_files(struct net_device *dev); | |
1da177e4 LT |
754 | int ipoib_register_debugfs(void); |
755 | void ipoib_unregister_debugfs(void); | |
756 | #else | |
1732b0ef RD |
757 | static inline void ipoib_create_debug_files(struct net_device *dev) { } |
758 | static inline void ipoib_delete_debug_files(struct net_device *dev) { } | |
1da177e4 LT |
759 | static inline int ipoib_register_debugfs(void) { return 0; } |
760 | static inline void ipoib_unregister_debugfs(void) { } | |
761 | #endif | |
762 | ||
1da177e4 LT |
763 | #define ipoib_printk(level, priv, format, arg...) \ |
764 | printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) | |
765 | #define ipoib_warn(priv, format, arg...) \ | |
766 | ipoib_printk(KERN_WARNING, priv, format , ## arg) | |
767 | ||
0f485251 SM |
768 | extern int ipoib_sendq_size; |
769 | extern int ipoib_recvq_size; | |
1da177e4 | 770 | |
c1a0b23b MT |
771 | extern struct ib_sa_client ipoib_sa_client; |
772 | ||
1da177e4 LT |
773 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
774 | extern int ipoib_debug_level; | |
775 | ||
776 | #define ipoib_dbg(priv, format, arg...) \ | |
2337f809 | 777 | do { \ |
1da177e4 LT |
778 | if (ipoib_debug_level > 0) \ |
779 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
780 | } while (0) | |
781 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
2337f809 | 782 | do { \ |
1da177e4 LT |
783 | if (mcast_debug_level > 0) \ |
784 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
785 | } while (0) | |
786 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
787 | #define ipoib_dbg(priv, format, arg...) \ | |
788 | do { (void) (priv); } while (0) | |
789 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
790 | do { (void) (priv); } while (0) | |
791 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
792 | ||
793 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA | |
794 | #define ipoib_dbg_data(priv, format, arg...) \ | |
2337f809 | 795 | do { \ |
1da177e4 LT |
796 | if (data_debug_level > 0) \ |
797 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
798 | } while (0) | |
799 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
800 | #define ipoib_dbg_data(priv, format, arg...) \ | |
801 | do { (void) (priv); } while (0) | |
802 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
803 | ||
839fcaba MT |
804 | #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) |
805 | ||
4b48680b YB |
806 | extern const char ipoib_driver_version[]; |
807 | ||
1da177e4 | 808 | #endif /* _IPOIB_H */ |