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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. | |
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, | |
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, |
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, |
2337f809 | 100 | IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ |
1da177e4 | 101 | IPOIB_MCAST_FLAG_ATTACHED = 3, |
f56bcd80 EC |
102 | |
103 | MAX_SEND_CQE = 16, | |
f89271da | 104 | IPOIB_CM_COPYBREAK = 256, |
1da177e4 LT |
105 | }; |
106 | ||
839fcaba MT |
107 | #define IPOIB_OP_RECV (1ul << 31) |
108 | #ifdef CONFIG_INFINIBAND_IPOIB_CM | |
1b524963 | 109 | #define IPOIB_OP_CM (1ul << 30) |
839fcaba | 110 | #else |
1b524963 | 111 | #define IPOIB_OP_CM (0) |
839fcaba MT |
112 | #endif |
113 | ||
1da177e4 LT |
114 | /* structs */ |
115 | ||
116 | struct ipoib_header { | |
97f52eb4 SH |
117 | __be16 proto; |
118 | u16 reserved; | |
1da177e4 LT |
119 | }; |
120 | ||
936d7de3 RD |
121 | struct ipoib_cb { |
122 | struct qdisc_skb_cb qdisc_cb; | |
123 | u8 hwaddr[INFINIBAND_ALEN]; | |
1da177e4 LT |
124 | }; |
125 | ||
81668838 SH |
126 | /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ |
127 | struct ipoib_mcast { | |
128 | struct ib_sa_mcmember_rec mcmember; | |
129 | struct ib_sa_multicast *mc; | |
2337f809 | 130 | struct ipoib_ah *ah; |
81668838 SH |
131 | |
132 | struct rb_node rb_node; | |
133 | struct list_head list; | |
134 | ||
135 | unsigned long created; | |
136 | unsigned long backoff; | |
137 | ||
138 | unsigned long flags; | |
139 | unsigned char logcount; | |
140 | ||
141 | struct list_head neigh_list; | |
142 | ||
143 | struct sk_buff_head pkt_queue; | |
144 | ||
145 | struct net_device *dev; | |
146 | }; | |
1da177e4 | 147 | |
1993d683 RD |
148 | struct ipoib_rx_buf { |
149 | struct sk_buff *skb; | |
bc7b3a36 | 150 | u64 mapping[IPOIB_UD_RX_SG]; |
1993d683 RD |
151 | }; |
152 | ||
153 | struct ipoib_tx_buf { | |
1da177e4 | 154 | struct sk_buff *skb; |
7143740d | 155 | u64 mapping[MAX_SKB_FRAGS + 1]; |
1da177e4 LT |
156 | }; |
157 | ||
e112373f EC |
158 | struct ipoib_cm_tx_buf { |
159 | struct sk_buff *skb; | |
160 | u64 mapping; | |
161 | }; | |
162 | ||
839fcaba MT |
163 | struct ib_cm_id; |
164 | ||
165 | struct ipoib_cm_data { | |
166 | __be32 qpn; /* High byte MUST be ignored on receive */ | |
167 | __be32 mtu; | |
168 | }; | |
169 | ||
518b1646 MT |
170 | /* |
171 | * Quoting 10.3.1 Queue Pair and EE Context States: | |
172 | * | |
173 | * Note, for QPs that are associated with an SRQ, the Consumer should take the | |
174 | * QP through the Error State before invoking a Destroy QP or a Modify QP to the | |
175 | * Reset State. The Consumer may invoke the Destroy QP without first performing | |
176 | * a Modify QP to the Error State and waiting for the Affiliated Asynchronous | |
177 | * Last WQE Reached Event. However, if the Consumer does not wait for the | |
178 | * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment | |
179 | * leakage may occur. Therefore, it is good programming practice to tear down a | |
180 | * QP that is associated with an SRQ by using the following process: | |
181 | * | |
182 | * - Put the QP in the Error State | |
183 | * - Wait for the Affiliated Asynchronous Last WQE Reached Event; | |
184 | * - either: | |
185 | * drain the CQ by invoking the Poll CQ verb and either wait for CQ | |
186 | * to be empty or the number of Poll CQ operations has exceeded | |
187 | * CQ capacity size; | |
188 | * - or | |
189 | * post another WR that completes on the same CQ and wait for this | |
190 | * WR to return as a WC; | |
191 | * - and then invoke a Destroy QP or Reset QP. | |
192 | * | |
193 | * We use the second option and wait for a completion on the | |
ec56dc0b | 194 | * same CQ before destroying QPs attached to our SRQ. |
518b1646 MT |
195 | */ |
196 | ||
197 | enum ipoib_cm_state { | |
198 | IPOIB_CM_RX_LIVE, | |
199 | IPOIB_CM_RX_ERROR, /* Ignored by stale task */ | |
200 | IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ | |
201 | }; | |
202 | ||
839fcaba | 203 | struct ipoib_cm_rx { |
2337f809 RD |
204 | struct ib_cm_id *id; |
205 | struct ib_qp *qp; | |
68e995a2 | 206 | struct ipoib_cm_rx_buf *rx_ring; |
2337f809 RD |
207 | struct list_head list; |
208 | struct net_device *dev; | |
209 | unsigned long jiffies; | |
210 | enum ipoib_cm_state state; | |
68e995a2 | 211 | int recv_count; |
839fcaba MT |
212 | }; |
213 | ||
214 | struct ipoib_cm_tx { | |
2337f809 RD |
215 | struct ib_cm_id *id; |
216 | struct ib_qp *qp; | |
839fcaba MT |
217 | struct list_head list; |
218 | struct net_device *dev; | |
219 | struct ipoib_neigh *neigh; | |
220 | struct ipoib_path *path; | |
e112373f | 221 | struct ipoib_cm_tx_buf *tx_ring; |
2337f809 RD |
222 | unsigned tx_head; |
223 | unsigned tx_tail; | |
224 | unsigned long flags; | |
225 | u32 mtu; | |
839fcaba MT |
226 | }; |
227 | ||
228 | struct ipoib_cm_rx_buf { | |
229 | struct sk_buff *skb; | |
230 | u64 mapping[IPOIB_CM_RX_SG]; | |
231 | }; | |
232 | ||
233 | struct ipoib_cm_dev_priv { | |
2337f809 | 234 | struct ib_srq *srq; |
839fcaba | 235 | struct ipoib_cm_rx_buf *srq_ring; |
2337f809 RD |
236 | struct ib_cm_id *id; |
237 | struct list_head passive_ids; /* state: LIVE */ | |
238 | struct list_head rx_error_list; /* state: ERROR */ | |
239 | struct list_head rx_flush_list; /* state: FLUSH, drain not started */ | |
240 | struct list_head rx_drain_list; /* state: FLUSH, drain started */ | |
241 | struct list_head rx_reap_list; /* state: FLUSH, drain done */ | |
839fcaba MT |
242 | struct work_struct start_task; |
243 | struct work_struct reap_task; | |
244 | struct work_struct skb_task; | |
518b1646 | 245 | struct work_struct rx_reap_task; |
839fcaba MT |
246 | struct delayed_work stale_task; |
247 | struct sk_buff_head skb_queue; | |
2337f809 RD |
248 | struct list_head start_list; |
249 | struct list_head reap_list; | |
250 | struct ib_wc ibwc[IPOIB_NUM_WC]; | |
251 | struct ib_sge rx_sge[IPOIB_CM_RX_SG]; | |
839fcaba | 252 | struct ib_recv_wr rx_wr; |
68e995a2 | 253 | int nonsrq_conn_qp; |
586a6934 PS |
254 | int max_cm_mtu; |
255 | int num_frags; | |
839fcaba MT |
256 | }; |
257 | ||
28d52b3c EC |
258 | struct ipoib_ethtool_st { |
259 | u16 coalesce_usecs; | |
260 | u16 max_coalesced_frames; | |
261 | }; | |
262 | ||
1da177e4 | 263 | /* |
943c246e RD |
264 | * Device private locking: network stack tx_lock protects members used |
265 | * in TX fast path, lock protects everything else. lock nests inside | |
266 | * of tx_lock (ie tx_lock must be acquired first if needed). | |
1da177e4 LT |
267 | */ |
268 | struct ipoib_dev_priv { | |
269 | spinlock_t lock; | |
270 | ||
271 | struct net_device *dev; | |
272 | ||
bea3348e SH |
273 | struct napi_struct napi; |
274 | ||
1da177e4 LT |
275 | unsigned long flags; |
276 | ||
95ed644f | 277 | struct mutex vlan_mutex; |
1da177e4 LT |
278 | |
279 | struct rb_root path_tree; | |
280 | struct list_head path_list; | |
281 | ||
282 | struct ipoib_mcast *broadcast; | |
283 | struct list_head multicast_list; | |
284 | struct rb_root multicast_tree; | |
285 | ||
26bbf13c | 286 | struct delayed_work pkey_poll_task; |
c4028958 | 287 | struct delayed_work mcast_task; |
e8224e4b | 288 | struct work_struct carrier_on_task; |
ee1e2c82 MS |
289 | struct work_struct flush_light; |
290 | struct work_struct flush_normal; | |
291 | struct work_struct flush_heavy; | |
1da177e4 | 292 | struct work_struct restart_task; |
c4028958 | 293 | struct delayed_work ah_reap_task; |
1da177e4 LT |
294 | |
295 | struct ib_device *ca; | |
2337f809 RD |
296 | u8 port; |
297 | u16 pkey; | |
298 | u16 pkey_index; | |
299 | struct ib_pd *pd; | |
300 | struct ib_mr *mr; | |
f56bcd80 EC |
301 | struct ib_cq *recv_cq; |
302 | struct ib_cq *send_cq; | |
2337f809 RD |
303 | struct ib_qp *qp; |
304 | u32 qkey; | |
1da177e4 LT |
305 | |
306 | union ib_gid local_gid; | |
2337f809 | 307 | u16 local_lid; |
1da177e4 LT |
308 | |
309 | unsigned int admin_mtu; | |
310 | unsigned int mcast_mtu; | |
bc7b3a36 | 311 | unsigned int max_ib_mtu; |
1da177e4 | 312 | |
1993d683 | 313 | struct ipoib_rx_buf *rx_ring; |
1da177e4 | 314 | |
1993d683 | 315 | struct ipoib_tx_buf *tx_ring; |
2337f809 RD |
316 | unsigned tx_head; |
317 | unsigned tx_tail; | |
7143740d | 318 | struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; |
1993d683 | 319 | struct ib_send_wr tx_wr; |
2337f809 | 320 | unsigned tx_outstanding; |
f56bcd80 | 321 | struct ib_wc send_wc[MAX_SEND_CQE]; |
1da177e4 | 322 | |
bc7b3a36 SM |
323 | struct ib_recv_wr rx_wr; |
324 | struct ib_sge rx_sge[IPOIB_UD_RX_SG]; | |
325 | ||
1da177e4 LT |
326 | struct ib_wc ibwc[IPOIB_NUM_WC]; |
327 | ||
328 | struct list_head dead_ahs; | |
329 | ||
330 | struct ib_event_handler event_handler; | |
331 | ||
1da177e4 LT |
332 | struct net_device *parent; |
333 | struct list_head child_intfs; | |
334 | struct list_head list; | |
335 | ||
839fcaba MT |
336 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
337 | struct ipoib_cm_dev_priv cm; | |
338 | #endif | |
339 | ||
1da177e4 LT |
340 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
341 | struct list_head fs_list; | |
342 | struct dentry *mcg_dentry; | |
1732b0ef | 343 | struct dentry *path_dentry; |
1da177e4 | 344 | #endif |
40ca1988 | 345 | int hca_caps; |
28d52b3c | 346 | struct ipoib_ethtool_st ethtool; |
57ce41d1 | 347 | struct timer_list poll_timer; |
1da177e4 LT |
348 | }; |
349 | ||
350 | struct ipoib_ah { | |
351 | struct net_device *dev; | |
2337f809 | 352 | struct ib_ah *ah; |
1da177e4 | 353 | struct list_head list; |
2337f809 RD |
354 | struct kref ref; |
355 | unsigned last_send; | |
1da177e4 LT |
356 | }; |
357 | ||
358 | struct ipoib_path { | |
359 | struct net_device *dev; | |
360 | struct ib_sa_path_rec pathrec; | |
361 | struct ipoib_ah *ah; | |
362 | struct sk_buff_head queue; | |
363 | ||
364 | struct list_head neigh_list; | |
365 | ||
2337f809 | 366 | int query_id; |
1da177e4 LT |
367 | struct ib_sa_query *query; |
368 | struct completion done; | |
369 | ||
2337f809 | 370 | struct rb_node rb_node; |
1da177e4 | 371 | struct list_head list; |
ee1e2c82 | 372 | int valid; |
1da177e4 LT |
373 | }; |
374 | ||
375 | struct ipoib_neigh { | |
376 | struct ipoib_ah *ah; | |
839fcaba MT |
377 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
378 | struct ipoib_cm_tx *cm; | |
379 | #endif | |
2337f809 | 380 | union ib_gid dgid; |
1da177e4 LT |
381 | struct sk_buff_head queue; |
382 | ||
383 | struct neighbour *neighbour; | |
732a2170 | 384 | struct net_device *dev; |
1da177e4 LT |
385 | |
386 | struct list_head list; | |
387 | }; | |
388 | ||
bc7b3a36 SM |
389 | #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) |
390 | #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) | |
391 | ||
392 | static inline int ipoib_ud_need_sg(unsigned int ib_mtu) | |
393 | { | |
394 | return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; | |
395 | } | |
396 | ||
44af79f9 MT |
397 | /* |
398 | * We stash a pointer to our private neighbour information after our | |
399 | * hardware address in neigh->ha. The ALIGN() expression here makes | |
400 | * sure that this pointer is stored aligned so that an unaligned | |
401 | * load is not needed to dereference it. | |
402 | */ | |
1da177e4 LT |
403 | static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) |
404 | { | |
44af79f9 MT |
405 | return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + |
406 | INFINIBAND_ALEN, sizeof(void *)); | |
1da177e4 LT |
407 | } |
408 | ||
732a2170 MS |
409 | struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, |
410 | struct net_device *dev); | |
2745b5b7 | 411 | void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); |
d2e0655e | 412 | |
1da177e4 LT |
413 | extern struct workqueue_struct *ipoib_workqueue; |
414 | ||
415 | /* functions */ | |
416 | ||
bea3348e | 417 | int ipoib_poll(struct napi_struct *napi, int budget); |
1da177e4 | 418 | void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); |
57ce41d1 | 419 | void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); |
1da177e4 LT |
420 | |
421 | struct ipoib_ah *ipoib_create_ah(struct net_device *dev, | |
422 | struct ib_pd *pd, struct ib_ah_attr *attr); | |
423 | void ipoib_free_ah(struct kref *kref); | |
424 | static inline void ipoib_put_ah(struct ipoib_ah *ah) | |
425 | { | |
426 | kref_put(&ah->ref, ipoib_free_ah); | |
427 | } | |
428 | ||
8ae5a8a2 | 429 | int ipoib_open(struct net_device *dev); |
1da177e4 | 430 | int ipoib_add_pkey_attr(struct net_device *dev); |
335a64a5 | 431 | int ipoib_add_umcast_attr(struct net_device *dev); |
1da177e4 LT |
432 | |
433 | void ipoib_send(struct net_device *dev, struct sk_buff *skb, | |
434 | struct ipoib_ah *address, u32 qpn); | |
c4028958 | 435 | void ipoib_reap_ah(struct work_struct *work); |
1da177e4 | 436 | |
ee1e2c82 | 437 | void ipoib_mark_paths_invalid(struct net_device *dev); |
1da177e4 LT |
438 | void ipoib_flush_paths(struct net_device *dev); |
439 | struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); | |
440 | ||
441 | int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
ee1e2c82 MS |
442 | void ipoib_ib_dev_flush_light(struct work_struct *work); |
443 | void ipoib_ib_dev_flush_normal(struct work_struct *work); | |
444 | void ipoib_ib_dev_flush_heavy(struct work_struct *work); | |
26bbf13c | 445 | void ipoib_pkey_event(struct work_struct *work); |
1da177e4 LT |
446 | void ipoib_ib_dev_cleanup(struct net_device *dev); |
447 | ||
448 | int ipoib_ib_dev_open(struct net_device *dev); | |
449 | int ipoib_ib_dev_up(struct net_device *dev); | |
0b3ea082 | 450 | int ipoib_ib_dev_down(struct net_device *dev, int flush); |
26bbf13c | 451 | int ipoib_ib_dev_stop(struct net_device *dev, int flush); |
1da177e4 LT |
452 | |
453 | int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); | |
454 | void ipoib_dev_cleanup(struct net_device *dev); | |
455 | ||
c4028958 | 456 | void ipoib_mcast_join_task(struct work_struct *work); |
e8224e4b | 457 | void ipoib_mcast_carrier_on_task(struct work_struct *work); |
37c22a77 | 458 | void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); |
1da177e4 | 459 | |
c4028958 | 460 | void ipoib_mcast_restart_task(struct work_struct *work); |
1da177e4 | 461 | int ipoib_mcast_start_thread(struct net_device *dev); |
8d2cae06 | 462 | int ipoib_mcast_stop_thread(struct net_device *dev, int flush); |
1da177e4 LT |
463 | |
464 | void ipoib_mcast_dev_down(struct net_device *dev); | |
465 | void ipoib_mcast_dev_flush(struct net_device *dev); | |
466 | ||
8ae5a8a2 | 467 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1da177e4 | 468 | struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); |
1da177e4 LT |
469 | int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); |
470 | void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, | |
471 | union ib_gid *gid, | |
472 | unsigned long *created, | |
473 | unsigned int *queuelen, | |
474 | unsigned int *complete, | |
475 | unsigned int *send_only); | |
1732b0ef RD |
476 | |
477 | struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); | |
478 | int ipoib_path_iter_next(struct ipoib_path_iter *iter); | |
479 | void ipoib_path_iter_read(struct ipoib_path_iter *iter, | |
480 | struct ipoib_path *path); | |
8ae5a8a2 | 481 | #endif |
1da177e4 LT |
482 | |
483 | int ipoib_mcast_attach(struct net_device *dev, u16 mlid, | |
d0de1362 | 484 | union ib_gid *mgid, int set_qkey); |
1da177e4 | 485 | |
5b6810e0 | 486 | int ipoib_init_qp(struct net_device *dev); |
1da177e4 LT |
487 | int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); |
488 | void ipoib_transport_dev_cleanup(struct net_device *dev); | |
489 | ||
490 | void ipoib_event(struct ib_event_handler *handler, | |
491 | struct ib_event *record); | |
492 | ||
493 | int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); | |
494 | int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); | |
495 | ||
c4028958 | 496 | void ipoib_pkey_poll(struct work_struct *work); |
1da177e4 | 497 | int ipoib_pkey_dev_delay_open(struct net_device *dev); |
2dfbfc37 | 498 | void ipoib_drain_cq(struct net_device *dev); |
1da177e4 | 499 | |
82c24c18 | 500 | void ipoib_set_ethtool_ops(struct net_device *dev); |
83bb63f6 | 501 | int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); |
82c24c18 | 502 | |
839fcaba MT |
503 | #ifdef CONFIG_INFINIBAND_IPOIB_CM |
504 | ||
2337f809 RD |
505 | #define IPOIB_FLAGS_RC 0x80 |
506 | #define IPOIB_FLAGS_UC 0x40 | |
839fcaba MT |
507 | |
508 | /* We don't support UC connections at the moment */ | |
509 | #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) | |
510 | ||
68e995a2 PS |
511 | extern int ipoib_max_conn_qp; |
512 | ||
839fcaba MT |
513 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
514 | { | |
515 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
516 | return IPOIB_CM_SUPPORTED(dev->dev_addr) && | |
517 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
518 | } | |
519 | ||
520 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
521 | { | |
522 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
523 | return IPOIB_CM_SUPPORTED(n->ha) && | |
524 | test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); | |
525 | } | |
526 | ||
527 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
528 | ||
529 | { | |
530 | return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); | |
531 | } | |
532 | ||
533 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
534 | { | |
535 | return neigh->cm; | |
536 | } | |
537 | ||
538 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
539 | { | |
540 | neigh->cm = tx; | |
541 | } | |
542 | ||
68e995a2 PS |
543 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
544 | { | |
545 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
546 | return !!priv->cm.srq; | |
547 | } | |
548 | ||
586a6934 PS |
549 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
550 | { | |
551 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
552 | return priv->cm.max_cm_mtu; | |
553 | } | |
554 | ||
839fcaba MT |
555 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); |
556 | int ipoib_cm_dev_open(struct net_device *dev); | |
557 | void ipoib_cm_dev_stop(struct net_device *dev); | |
558 | int ipoib_cm_dev_init(struct net_device *dev); | |
559 | int ipoib_cm_add_mode_attr(struct net_device *dev); | |
560 | void ipoib_cm_dev_cleanup(struct net_device *dev); | |
561 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
562 | struct ipoib_neigh *neigh); | |
563 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); | |
2337f809 | 564 | void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
565 | unsigned int mtu); |
566 | void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); | |
1b524963 | 567 | void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); |
839fcaba MT |
568 | #else |
569 | ||
570 | struct ipoib_cm_tx; | |
571 | ||
68e995a2 PS |
572 | #define ipoib_max_conn_qp 0 |
573 | ||
839fcaba MT |
574 | static inline int ipoib_cm_admin_enabled(struct net_device *dev) |
575 | { | |
576 | return 0; | |
577 | } | |
578 | static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) | |
579 | ||
580 | { | |
581 | return 0; | |
582 | } | |
583 | ||
584 | static inline int ipoib_cm_up(struct ipoib_neigh *neigh) | |
585 | ||
586 | { | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) | |
591 | { | |
592 | return NULL; | |
593 | } | |
594 | ||
595 | static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) | |
596 | { | |
597 | } | |
598 | ||
68e995a2 PS |
599 | static inline int ipoib_cm_has_srq(struct net_device *dev) |
600 | { | |
601 | return 0; | |
602 | } | |
603 | ||
586a6934 PS |
604 | static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) |
605 | { | |
606 | return 0; | |
607 | } | |
608 | ||
839fcaba MT |
609 | static inline |
610 | void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) | |
611 | { | |
612 | return; | |
613 | } | |
614 | ||
615 | static inline | |
616 | int ipoib_cm_dev_open(struct net_device *dev) | |
617 | { | |
618 | return 0; | |
619 | } | |
620 | ||
621 | static inline | |
622 | void ipoib_cm_dev_stop(struct net_device *dev) | |
623 | { | |
624 | return; | |
625 | } | |
626 | ||
627 | static inline | |
628 | int ipoib_cm_dev_init(struct net_device *dev) | |
629 | { | |
630 | return -ENOSYS; | |
631 | } | |
632 | ||
633 | static inline | |
634 | void ipoib_cm_dev_cleanup(struct net_device *dev) | |
635 | { | |
636 | return; | |
637 | } | |
638 | ||
639 | static inline | |
640 | struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, | |
641 | struct ipoib_neigh *neigh) | |
642 | { | |
643 | return NULL; | |
644 | } | |
645 | ||
646 | static inline | |
647 | void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) | |
648 | { | |
649 | return; | |
650 | } | |
651 | ||
652 | static inline | |
653 | int ipoib_cm_add_mode_attr(struct net_device *dev) | |
654 | { | |
655 | return 0; | |
656 | } | |
657 | ||
2337f809 | 658 | static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, |
839fcaba MT |
659 | unsigned int mtu) |
660 | { | |
661 | dev_kfree_skb_any(skb); | |
662 | } | |
663 | ||
664 | static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) | |
665 | { | |
666 | } | |
667 | ||
1b524963 MT |
668 | static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) |
669 | { | |
670 | } | |
839fcaba MT |
671 | #endif |
672 | ||
1da177e4 | 673 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
1732b0ef RD |
674 | void ipoib_create_debug_files(struct net_device *dev); |
675 | void ipoib_delete_debug_files(struct net_device *dev); | |
1da177e4 LT |
676 | int ipoib_register_debugfs(void); |
677 | void ipoib_unregister_debugfs(void); | |
678 | #else | |
1732b0ef RD |
679 | static inline void ipoib_create_debug_files(struct net_device *dev) { } |
680 | static inline void ipoib_delete_debug_files(struct net_device *dev) { } | |
1da177e4 LT |
681 | static inline int ipoib_register_debugfs(void) { return 0; } |
682 | static inline void ipoib_unregister_debugfs(void) { } | |
683 | #endif | |
684 | ||
1da177e4 LT |
685 | #define ipoib_printk(level, priv, format, arg...) \ |
686 | printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) | |
687 | #define ipoib_warn(priv, format, arg...) \ | |
688 | ipoib_printk(KERN_WARNING, priv, format , ## arg) | |
689 | ||
0f485251 SM |
690 | extern int ipoib_sendq_size; |
691 | extern int ipoib_recvq_size; | |
1da177e4 | 692 | |
c1a0b23b MT |
693 | extern struct ib_sa_client ipoib_sa_client; |
694 | ||
1da177e4 LT |
695 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG |
696 | extern int ipoib_debug_level; | |
697 | ||
698 | #define ipoib_dbg(priv, format, arg...) \ | |
2337f809 | 699 | do { \ |
1da177e4 LT |
700 | if (ipoib_debug_level > 0) \ |
701 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
702 | } while (0) | |
703 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
2337f809 | 704 | do { \ |
1da177e4 LT |
705 | if (mcast_debug_level > 0) \ |
706 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
707 | } while (0) | |
708 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
709 | #define ipoib_dbg(priv, format, arg...) \ | |
710 | do { (void) (priv); } while (0) | |
711 | #define ipoib_dbg_mcast(priv, format, arg...) \ | |
712 | do { (void) (priv); } while (0) | |
713 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ | |
714 | ||
715 | #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA | |
716 | #define ipoib_dbg_data(priv, format, arg...) \ | |
2337f809 | 717 | do { \ |
1da177e4 LT |
718 | if (data_debug_level > 0) \ |
719 | ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ | |
720 | } while (0) | |
721 | #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
722 | #define ipoib_dbg_data(priv, format, arg...) \ | |
723 | do { (void) (priv); } while (0) | |
724 | #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ | |
725 | ||
839fcaba MT |
726 | #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) |
727 | ||
1da177e4 | 728 | #endif /* _IPOIB_H */ |