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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. | |
33 | * | |
34 | * $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $ | |
35 | */ | |
36 | ||
37 | #ifndef _IPOIB_H | |
38 | #define _IPOIB_H | |
39 | ||
40 | #include <linux/list.h> | |
41 | #include <linux/skbuff.h> | |
42 | #include <linux/netdevice.h> | |
43 | #include <linux/workqueue.h> | |
1da177e4 LT |
44 | #include <linux/kref.h> |
45 | #include <linux/if_infiniband.h> | |
95ed644f | 46 | #include <linux/mutex.h> |
1da177e4 LT |
47 | |
48 | #include <net/neighbour.h> | |
49 | ||
50 | #include <asm/atomic.h> | |
1da177e4 | 51 | |
a4d61e84 RD |
52 | #include <rdma/ib_verbs.h> |
53 | #include <rdma/ib_pack.h> | |
54 | #include <rdma/ib_sa.h> | |
1da177e4 LT |
55 | |
56 | /* constants */ | |
57 | ||
58 | enum { | |
2337f809 RD |
59 | IPOIB_PACKET_SIZE = 2048, |
60 | IPOIB_BUF_SIZE = IPOIB_PACKET_SIZE + IB_GRH_BYTES, | |
1da177e4 | 61 | |
2337f809 | 62 | IPOIB_ENCAP_LEN = 4, |
1da177e4 | 63 | |
2337f809 RD |
64 | IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ |
65 | IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, | |
66 | IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, | |
67 | IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, | |
68 | IPOIB_RX_RING_SIZE = 128, | |
69 | IPOIB_TX_RING_SIZE = 64, | |
0f485251 SM |
70 | IPOIB_MAX_QUEUE_SIZE = 8192, |
71 | IPOIB_MIN_QUEUE_SIZE = 2, | |
68e995a2 | 72 | IPOIB_CM_MAX_CONN_QP = 4096, |
1da177e4 | 73 | |
2337f809 | 74 | IPOIB_NUM_WC = 4, |
1da177e4 LT |
75 | |
76 | IPOIB_MAX_PATH_REC_QUEUE = 3, | |
2337f809 RD |
77 | IPOIB_MAX_MCAST_QUEUE = 3, |
78 | ||
79 | IPOIB_FLAG_OPER_UP = 0, | |
80 | IPOIB_FLAG_INITIALIZED = 1, | |
81 | IPOIB_FLAG_ADMIN_UP = 2, | |
82 | IPOIB_PKEY_ASSIGNED = 3, | |
83 | IPOIB_PKEY_STOP = 4, | |
84 | IPOIB_FLAG_SUBINTERFACE = 5, | |
85 | IPOIB_MCAST_RUN = 6, | |
86 | IPOIB_STOP_REAPER = 7, | |
87 | IPOIB_MCAST_STARTED = 8, | |
88 | IPOIB_FLAG_ADMIN_CM = 9, | |
1b524963 | 89 | IPOIB_FLAG_UMCAST = 10, |
6046136c | 90 | IPOIB_FLAG_CSUM = 11, |
1da177e4 LT |
91 | |
92 | IPOIB_MAX_BACKOFF_SECONDS = 16, | |
93 | ||
2337f809 | 94 | IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ |
1da177e4 | 95 | IPOIB_MCAST_FLAG_SENDONLY = 1, |
2337f809 | 96 | IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ |
1da177e4 LT |
97 | IPOIB_MCAST_FLAG_ATTACHED = 3, |
98 | }; | |
99 | ||
839fcaba MT |
100 | #define IPOIB_OP_RECV (1ul << 31) |
101 | #ifdef CONFIG_INFINIBAND_IPOIB_CM | |
1b524963 | 102 | #define IPOIB_OP_CM (1ul << 30) |
839fcaba | 103 | #else |
1b524963 | 104 | #define IPOIB_OP_CM (0) |
839fcaba MT |
105 | #endif |
106 | ||
1da177e4 LT |
107 | /* structs */ |
108 | ||
109 | struct ipoib_header { | |
97f52eb4 SH |
110 | __be16 proto; |
111 | u16 reserved; | |
1da177e4 LT |
112 | }; |
113 | ||
114 | struct ipoib_pseudoheader { | |
115 | u8 hwaddr[INFINIBAND_ALEN]; | |
116 | }; | |
117 | ||
81668838 SH |
118 | /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ |
119 | struct ipoib_mcast { | |
120 | struct ib_sa_mcmember_rec mcmember; | |
121 | struct ib_sa_multicast *mc; | |
2337f809 | 122 | struct ipoib_ah *ah; |
81668838 SH |
123 | |
124 | struct rb_node rb_node; | |
125 | struct list_head list; | |
126 | ||
127 | unsigned long created; | |
128 | unsigned long backoff; | |
129 | ||
130 | unsigned long flags; | |
131 | unsigned char logcount; | |
132 | ||
133 | struct list_head neigh_list; | |
134 | ||
135 | struct sk_buff_head pkt_queue; | |
136 | ||
137 | struct net_device *dev; | |
138 | }; | |
1da177e4 | 139 | |
1993d683 RD |
140 | struct ipoib_rx_buf { |
141 | struct sk_buff *skb; | |
37ccf9df | 142 | u64 mapping; |
1993d683 RD |
143 | }; |
144 | ||
145 | struct ipoib_tx_buf { | |
1da177e4 | 146 | struct sk_buff *skb; |
7143740d | 147 | u64 mapping[MAX_SKB_FRAGS + 1]; |
1da177e4 LT |
148 | }; |
149 | ||
839fcaba MT |
150 | struct ib_cm_id; |
151 | ||
152 | struct ipoib_cm_data { | |
153 | __be32 qpn; /* High byte MUST be ignored on receive */ | |
154 | __be32 mtu; | |
155 | }; | |
156 | ||
518b1646 MT |
157 | /* |
158 | * Quoting 10.3.1 Queue Pair and EE Context States: | |
159 | * | |
160 | * Note, for QPs that are associated with an SRQ, the Consumer should take the | |
161 | * QP through the Error State before invoking a Destroy QP or a Modify QP to the | |
162 | * Reset State. The Consumer may invoke the Destroy QP without first performing | |
163 | * a Modify QP to the Error State and waiting for the Affiliated Asynchronous | |
164 | * Last WQE Reached Event. However, if the Consumer does not wait for the | |
165 | * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment | |
166 | * leakage may occur. Therefore, it is good programming practice to tear down a | |
167 | * QP that is associated with an SRQ by using the following process: | |
168 | * | |
169 | * - Put the QP in the Error State | |
170 | * - Wait for the Affiliated Asynchronous Last WQE Reached Event; | |
171 | * - either: | |
172 | * drain the CQ by invoking the Poll CQ verb and either wait for CQ | |
173 | * to be empty or the number of Poll CQ operations has exceeded | |
174 | * CQ capacity size; | |
175 | * - or | |
176 | * post another WR that completes on the same CQ and wait for this | |
177 | * WR to return as a WC; | |
178 | * - and then invoke a Destroy QP or Reset QP. | |
179 | * | |
180 | * We use the second option and wait for a completion on the | |
ec56dc0b | 181 | * same CQ before destroying QPs attached to our SRQ. |
518b1646 MT |
182 | */ |
183 | ||
184 | enum ipoib_cm_state { | |
185 | IPOIB_CM_RX_LIVE, | |
186 | IPOIB_CM_RX_ERROR, /* Ignored by stale task */ | |
187 | IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ | |
188 | }; | |
189 | ||
839fcaba | 190 | struct ipoib_cm_rx { |
2337f809 RD |
191 | struct ib_cm_id *id; |
192 | struct ib_qp *qp; | |
68e995a2 | 193 | struct ipoib_cm_rx_buf *rx_ring; |
2337f809 RD |
194 | struct list_head list; |
195 | struct net_device *dev; | |
196 | unsigned long jiffies; | |
197 | enum ipoib_cm_state state; | |
68e995a2 | 198 | int recv_count; |
839fcaba MT |
199 | }; |
200 | ||
201 | struct ipoib_cm_tx { | |
2337f809 RD |
202 | struct ib_cm_id *id; |
203 | struct ib_qp *qp; | |
839fcaba MT |
204 | struct list_head list; |
205 | struct net_device *dev; | |
206 | struct ipoib_neigh *neigh; | |
207 | struct ipoib_path *path; | |
208 | struct ipoib_tx_buf *tx_ring; | |
2337f809 RD |
209 | unsigned tx_head; |
210 | unsigned tx_tail; | |
211 | unsigned long flags; | |
212 | u32 mtu; | |
839fcaba MT |
213 | }; |
214 | ||
215 | struct ipoib_cm_rx_buf { | |
216 | struct sk_buff *skb; | |
217 | u64 mapping[IPOIB_CM_RX_SG]; | |
218 | }; | |
219 | ||
220 | struct ipoib_cm_dev_priv { | |
2337f809 | 221 | struct ib_srq *srq; |
839fcaba | 222 | struct ipoib_cm_rx_buf *srq_ring; |
2337f809 RD |
223 | struct ib_cm_id *id; |
224 | struct list_head passive_ids; /* state: LIVE */ | |
225 | struct list_head rx_error_list; /* state: ERROR */ | |
226 | struct list_head rx_flush_list; /* state: FLUSH, drain not started */ | |
227 | struct list_head rx_drain_list; /* state: FLUSH, drain started */ | |
228 | struct list_head rx_reap_list; /* state: FLUSH, drain done */ | |
839fcaba MT |
229 | struct work_struct start_task; |
230 | struct work_struct reap_task; | |
231 | struct work_struct skb_task; | |
518b1646 | 232 | struct work_struct rx_reap_task; |
839fcaba MT |
233 | struct delayed_work stale_task; |
234 | struct sk_buff_head skb_queue; | |
2337f809 RD |
235 | struct list_head start_list; |
236 | struct list_head reap_list; | |
237 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
238 | struct ib_sge rx_sge[IPOIB_CM_RX_SG]; | |
839fcaba | 239 | struct ib_recv_wr rx_wr; |
68e995a2 | 240 | int nonsrq_conn_qp; |
586a6934 PS |
241 | int max_cm_mtu; |
242 | int num_frags; | |
839fcaba MT |
243 | }; |
244 | ||
1da177e4 LT |
245 | /* |
246 | * Device private locking: tx_lock protects members used in TX fast | |
247 | * path (and we use LLTX so upper layers don't do extra locking). | |
248 | * lock protects everything else. lock nests inside of tx_lock (ie | |
249 | * tx_lock must be acquired first if needed). | |
250 | */ | |
251 | struct ipoib_dev_priv { | |
252 | spinlock_t lock; | |
253 | ||
254 | struct net_device *dev; | |
255 | ||
bea3348e SH |
256 | struct napi_struct napi; |
257 | ||
1da177e4 LT |
258 | unsigned long flags; |
259 | ||
95ed644f IM |
260 | struct mutex mcast_mutex; |
261 | struct mutex vlan_mutex; | |
1da177e4 LT |
262 | |
263 | struct rb_root path_tree; | |
264 | struct list_head path_list; | |
265 | ||
266 | struct ipoib_mcast *broadcast; | |
267 | struct list_head multicast_list; | |
268 | struct rb_root multicast_tree; | |
269 | ||
26bbf13c | 270 | struct delayed_work pkey_poll_task; |
c4028958 | 271 | struct delayed_work mcast_task; |
1da177e4 LT |
272 | struct work_struct flush_task; |
273 | struct work_struct restart_task; | |
c4028958 | 274 | struct delayed_work ah_reap_task; |
26bbf13c | 275 | struct work_struct pkey_event_task; |
1da177e4 LT |
276 | |
277 | struct ib_device *ca; | |
2337f809 RD |
278 | u8 port; |
279 | u16 pkey; | |
280 | u16 pkey_index; | |
281 | struct ib_pd *pd; | |
282 | struct ib_mr *mr; | |
283 | struct ib_cq *cq; | |
284 | struct ib_qp *qp; | |
285 | u32 qkey; | |
1da177e4 LT |
286 | |
287 | union ib_gid local_gid; | |
2337f809 | 288 | u16 local_lid; |
1da177e4 LT |
289 | |
290 | unsigned int admin_mtu; | |
291 | unsigned int mcast_mtu; | |
292 | ||
1993d683 | 293 | struct ipoib_rx_buf *rx_ring; |
1da177e4 | 294 | |
2337f809 | 295 | spinlock_t tx_lock; |
1993d683 | 296 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
297 | unsigned tx_head; |
298 | unsigned tx_tail; | |
7143740d | 299 | struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; |
1993d683 | 300 | struct ib_send_wr tx_wr; |
2337f809 | 301 | unsigned tx_outstanding; |
1da177e4 LT |
302 | |
303 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
304 | ||
305 | struct list_head dead_ahs; | |
306 | ||
307 | struct ib_event_handler event_handler; | |
308 | ||
1da177e4 LT |
309 | struct net_device *parent; |
310 | struct list_head child_intfs; | |
311 | struct list_head list; | |
312 | ||
839fcaba MT |
313 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
314 | struct ipoib_cm_dev_priv cm; | |
315 | #endif | |
316 | ||
1da177e4 LT |
317 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
318 | struct list_head fs_list; | |
319 | struct dentry *mcg_dentry; | |
1732b0ef | 320 | struct dentry *path_dentry; |
1da177e4 LT |
321 | #endif |
322 | }; | |
323 | ||
324 | struct ipoib_ah { | |
325 | struct net_device *dev; | |
2337f809 | 326 | struct ib_ah *ah; |
1da177e4 | 327 | struct list_head list; |
2337f809 RD |
328 | struct kref ref; |
329 | unsigned last_send; | |
1da177e4 LT |
330 | }; |
331 | ||
332 | struct ipoib_path { | |
333 | struct net_device *dev; | |
334 | struct ib_sa_path_rec pathrec; | |
335 | struct ipoib_ah *ah; | |
336 | struct sk_buff_head queue; | |
337 | ||
338 | struct list_head neigh_list; | |
339 | ||
2337f809 | 340 | int query_id; |
1da177e4 LT |
341 | struct ib_sa_query *query; |
342 | struct completion done; | |
343 | ||
2337f809 | 344 | struct rb_node rb_node; |
1da177e4 LT |
345 | struct list_head list; |
346 | }; | |
347 | ||
348 | struct ipoib_neigh { | |
349 | struct ipoib_ah *ah; | |
839fcaba MT |
350 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
351 | struct ipoib_cm_tx *cm; | |
352 | #endif | |
2337f809 | 353 | union ib_gid dgid; |
1da177e4 LT |
354 | struct sk_buff_head queue; |
355 | ||
356 | struct neighbour *neighbour; | |
732a2170 | 357 | struct net_device *dev; |
1da177e4 LT |
358 | |
359 | struct list_head list; | |
360 | }; | |
361 | ||
44af79f9 MT |
362 | /* |
363 | * We stash a pointer to our private neighbour information after our | |
364 | * hardware address in neigh->ha. The ALIGN() expression here makes | |
365 | * sure that this pointer is stored aligned so that an unaligned | |
366 | * load is not needed to dereference it. | |
367 | */ | |
1da177e4 LT |
368 | static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) |
369 | { | |
44af79f9 MT |
370 | return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + |
371 | INFINIBAND_ALEN, sizeof(void *)); | |
1da177e4 LT |
372 | } |
373 | ||
732a2170 MS |
374 | struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, |
375 | struct net_device *dev); | |
2745b5b7 | 376 | void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); |
d2e0655e | 377 | |
1da177e4 LT |
378 | extern struct workqueue_struct *ipoib_workqueue; |
379 | ||
380 | /* functions */ | |
381 | ||
bea3348e | 382 | int ipoib_poll(struct napi_struct *napi, int budget); |
1da177e4 LT |
383 | void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); |
384 | ||
385 | struct ipoib_ah *ipoib_create_ah(struct net_device *dev, | |
386 | struct ib_pd *pd, struct ib_ah_attr *attr); | |
387 | void ipoib_free_ah(struct kref *kref); | |
388 | static inline void ipoib_put_ah(struct ipoib_ah *ah) | |
389 | { | |
390 | kref_put(&ah->ref, ipoib_free_ah); | |
391 | } | |
392 | ||
8ae5a8a2 | 393 | int ipoib_open(struct net_device *dev); |
1da177e4 | 394 | int ipoib_add_pkey_attr(struct net_device *dev); |
335a64a5 | 395 | int ipoib_add_umcast_attr(struct net_device *dev); |
1da177e4 LT |
396 | |
397 | void ipoib_send(struct net_device *dev, struct sk_buff *skb, | |
398 | struct ipoib_ah *address, u32 qpn); | |
c4028958 | 399 | void ipoib_reap_ah(struct work_struct *work); |
1da177e4 LT |
400 | |
401 | void ipoib_flush_paths(struct net_device *dev); | |
402 | struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); | |
403 | ||
404 | int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
c4028958 | 405 | void ipoib_ib_dev_flush(struct work_struct *work); |
26bbf13c | 406 | void ipoib_pkey_event(struct work_struct *work); |
1da177e4 LT |
407 | void ipoib_ib_dev_cleanup(struct net_device *dev); |
408 | ||
409 | int ipoib_ib_dev_open(struct net_device *dev); | |
410 | int ipoib_ib_dev_up(struct net_device *dev); | |
0b3ea082 | 411 | int ipoib_ib_dev_down(struct net_device *dev, int flush); |
26bbf13c | 412 | int ipoib_ib_dev_stop(struct net_device *dev, int flush); |
1da177e4 LT |
413 | |
414 | int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
415 | void ipoib_dev_cleanup(struct net_device *dev); | |
416 | ||
c4028958 | 417 | void ipoib_mcast_join_task(struct work_struct *work); |
37c22a77 | 418 | void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); |
1da177e4 | 419 | |
c4028958 | 420 | void ipoib_mcast_restart_task(struct work_struct *work); |
1da177e4 | 421 | int ipoib_mcast_start_thread(struct net_device *dev); |
8d2cae06 | 422 | int ipoib_mcast_stop_thread(struct net_device *dev, int flush); |
1da177e4 LT |
423 | |
424 | void ipoib_mcast_dev_down(struct net_device *dev); | |
425 | void ipoib_mcast_dev_flush(struct net_device *dev); | |
426 | ||
8ae5a8a2 | 427 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1da177e4 | 428 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); |
1da177e4 LT |
429 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); |
430 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
431 | union ib_gid *gid, | |
432 | unsigned long *created, | |
433 | unsigned int *queuelen, | |
434 | unsigned int *complete, | |
435 | unsigned int *send_only); | |
1732b0ef RD |
436 | |
437 | struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); | |
438 | int ipoib_path_iter_next(struct ipoib_path_iter *iter); | |
439 | void ipoib_path_iter_read(struct ipoib_path_iter *iter, | |
440 | struct ipoib_path *path); | |
8ae5a8a2 | 441 | #endif |
1da177e4 LT |
442 | |
443 | int ipoib_mcast_attach(struct net_device *dev, u16 mlid, | |
444 | union ib_gid *mgid); | |
445 | int ipoib_mcast_detach(struct net_device *dev, u16 mlid, | |
446 | union ib_gid *mgid); | |
447 | ||
5b6810e0 | 448 | int ipoib_init_qp(struct net_device *dev); |
1da177e4 LT |
449 | int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); |
450 | void ipoib_transport_dev_cleanup(struct net_device *dev); | |
451 | ||
452 | void ipoib_event(struct ib_event_handler *handler, | |
453 | struct ib_event *record); | |
454 | ||
455 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); | |
456 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); | |
457 | ||
c4028958 | 458 | void ipoib_pkey_poll(struct work_struct *work); |
1da177e4 | 459 | int ipoib_pkey_dev_delay_open(struct net_device *dev); |
2dfbfc37 | 460 | void ipoib_drain_cq(struct net_device *dev); |
1da177e4 | 461 | |
839fcaba MT |
462 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
463 | ||
2337f809 RD |
464 | #define IPOIB_FLAGS_RC 0x80 |
465 | #define IPOIB_FLAGS_UC 0x40 | |
839fcaba MT |
466 | |
467 | /* We don't support UC connections at the moment */ | |
468 | #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) | |
469 | ||
68e995a2 PS |
470 | extern int ipoib_max_conn_qp; |
471 | ||
839fcaba MT |
472 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
473 | { | |
474 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
475 | return IPOIB_CM_SUPPORTED(dev->dev_addr) && | |
476 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
477 | } | |
478 | ||
479 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
480 | { | |
481 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
482 | return IPOIB_CM_SUPPORTED(n->ha) && | |
483 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
484 | } | |
485 | ||
486 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
487 | ||
488 | { | |
489 | return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); | |
490 | } | |
491 | ||
492 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
493 | { | |
494 | return neigh->cm; | |
495 | } | |
496 | ||
497 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
498 | { | |
499 | neigh->cm = tx; | |
500 | } | |
501 | ||
68e995a2 PS |
502 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
503 | { | |
504 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
505 | return !!priv->cm.srq; | |
506 | } | |
507 | ||
586a6934 PS |
508 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
509 | { | |
510 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
511 | return priv->cm.max_cm_mtu; | |
512 | } | |
513 | ||
839fcaba MT |
514 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); |
515 | int ipoib_cm_dev_open(struct net_device *dev); | |
516 | void ipoib_cm_dev_stop(struct net_device *dev); | |
517 | int ipoib_cm_dev_init(struct net_device *dev); | |
518 | int ipoib_cm_add_mode_attr(struct net_device *dev); | |
519 | void ipoib_cm_dev_cleanup(struct net_device *dev); | |
520 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
521 | struct ipoib_neigh *neigh); | |
522 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); | |
2337f809 | 523 | void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
524 | unsigned int mtu); |
525 | void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); | |
1b524963 | 526 | void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); |
839fcaba MT |
527 | #else |
528 | ||
529 | struct ipoib_cm_tx; | |
530 | ||
68e995a2 PS |
531 | #define ipoib_max_conn_qp 0 |
532 | ||
839fcaba MT |
533 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
534 | { | |
535 | return 0; | |
536 | } | |
537 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
538 | ||
539 | { | |
540 | return 0; | |
541 | } | |
542 | ||
543 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
544 | ||
545 | { | |
546 | return 0; | |
547 | } | |
548 | ||
549 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
550 | { | |
551 | return NULL; | |
552 | } | |
553 | ||
554 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
555 | { | |
556 | } | |
557 | ||
68e995a2 PS |
558 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
559 | { | |
560 | return 0; | |
561 | } | |
562 | ||
586a6934 PS |
563 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
564 | { | |
565 | return 0; | |
566 | } | |
567 | ||
839fcaba MT |
568 | static inline |
569 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) | |
570 | { | |
571 | return; | |
572 | } | |
573 | ||
574 | static inline | |
575 | int ipoib_cm_dev_open(struct net_device *dev) | |
576 | { | |
577 | return 0; | |
578 | } | |
579 | ||
580 | static inline | |
581 | void ipoib_cm_dev_stop(struct net_device *dev) | |
582 | { | |
583 | return; | |
584 | } | |
585 | ||
586 | static inline | |
587 | int ipoib_cm_dev_init(struct net_device *dev) | |
588 | { | |
589 | return -ENOSYS; | |
590 | } | |
591 | ||
592 | static inline | |
593 | void ipoib_cm_dev_cleanup(struct net_device *dev) | |
594 | { | |
595 | return; | |
596 | } | |
597 | ||
598 | static inline | |
599 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
600 | struct ipoib_neigh *neigh) | |
601 | { | |
602 | return NULL; | |
603 | } | |
604 | ||
605 | static inline | |
606 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) | |
607 | { | |
608 | return; | |
609 | } | |
610 | ||
611 | static inline | |
612 | int ipoib_cm_add_mode_attr(struct net_device *dev) | |
613 | { | |
614 | return 0; | |
615 | } | |
616 | ||
2337f809 | 617 | static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
618 | unsigned int mtu) |
619 | { | |
620 | dev_kfree_skb_any(skb); | |
621 | } | |
622 | ||
623 | static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) | |
624 | { | |
625 | } | |
626 | ||
1b524963 MT |
627 | static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) |
628 | { | |
629 | } | |
839fcaba MT |
630 | #endif |
631 | ||
1da177e4 | 632 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1732b0ef RD |
633 | void ipoib_create_debug_files(struct net_device *dev); |
634 | void ipoib_delete_debug_files(struct net_device *dev); | |
1da177e4 LT |
635 | int ipoib_register_debugfs(void); |
636 | void ipoib_unregister_debugfs(void); | |
637 | #else | |
1732b0ef RD |
638 | static inline void ipoib_create_debug_files(struct net_device *dev) { } |
639 | static inline void ipoib_delete_debug_files(struct net_device *dev) { } | |
1da177e4 LT |
640 | static inline int ipoib_register_debugfs(void) { return 0; } |
641 | static inline void ipoib_unregister_debugfs(void) { } | |
642 | #endif | |
643 | ||
644 | ||
645 | #define ipoib_printk(level, priv, format, arg...) \ | |
646 | printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) | |
647 | #define ipoib_warn(priv, format, arg...) \ | |
648 | ipoib_printk(KERN_WARNING, priv, format , ## arg) | |
649 | ||
0f485251 SM |
650 | extern int ipoib_sendq_size; |
651 | extern int ipoib_recvq_size; | |
1da177e4 | 652 | |
c1a0b23b MT |
653 | extern struct ib_sa_client ipoib_sa_client; |
654 | ||
1da177e4 LT |
655 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
656 | extern int ipoib_debug_level; | |
657 | ||
658 | #define ipoib_dbg(priv, format, arg...) \ | |
2337f809 | 659 | do { \ |
1da177e4 LT |
660 | if (ipoib_debug_level > 0) \ |
661 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
662 | } while (0) | |
663 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
2337f809 | 664 | do { \ |
1da177e4 LT |
665 | if (mcast_debug_level > 0) \ |
666 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
667 | } while (0) | |
668 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
669 | #define ipoib_dbg(priv, format, arg...) \ | |
670 | do { (void) (priv); } while (0) | |
671 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
672 | do { (void) (priv); } while (0) | |
673 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
674 | ||
675 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA | |
676 | #define ipoib_dbg_data(priv, format, arg...) \ | |
2337f809 | 677 | do { \ |
1da177e4 LT |
678 | if (data_debug_level > 0) \ |
679 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
680 | } while (0) | |
681 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
682 | #define ipoib_dbg_data(priv, format, arg...) \ | |
683 | do { (void) (priv); } while (0) | |
684 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
685 | ||
686 | ||
37c22a77 JM |
687 | #define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \ |
688 | "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x" | |
689 | ||
690 | #define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \ | |
691 | ((u8 *)(gid))[1], \ | |
692 | ((u8 *)(gid))[2], \ | |
693 | ((u8 *)(gid))[3], \ | |
694 | ((u8 *)(gid))[4], \ | |
695 | ((u8 *)(gid))[5], \ | |
696 | ((u8 *)(gid))[6], \ | |
697 | ((u8 *)(gid))[7], \ | |
698 | ((u8 *)(gid))[8], \ | |
699 | ((u8 *)(gid))[9], \ | |
700 | ((u8 *)(gid))[10],\ | |
701 | ((u8 *)(gid))[11],\ | |
702 | ((u8 *)(gid))[12],\ | |
703 | ((u8 *)(gid))[13],\ | |
704 | ((u8 *)(gid))[14],\ | |
705 | ((u8 *)(gid))[15] | |
706 | ||
707 | #define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw) | |
1da177e4 | 708 | |
839fcaba MT |
709 | #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) |
710 | ||
1da177e4 | 711 | #endif /* _IPOIB_H */ |