blob: d35025f0652b5c85d2a48942c4ae6b473f024d25 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
Roland Dreier2a1d9b72005-08-10 23:03:10 -07003 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070044#include <linux/kref.h>
45#include <linux/if_infiniband.h>
Ingo Molnar95ed6442006-01-13 14:51:39 -080046#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
48#include <net/neighbour.h>
49
50#include <asm/atomic.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070051
Roland Dreiera4d61e82005-08-25 13:40:04 -070052#include <rdma/ib_verbs.h>
53#include <rdma/ib_pack.h>
54#include <rdma/ib_sa.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56/* constants */
57
58enum {
Roland Dreier2337f802007-10-23 19:57:54 -070059 IPOIB_PACKET_SIZE = 2048,
60 IPOIB_BUF_SIZE = IPOIB_PACKET_SIZE + IB_GRH_BYTES,
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Roland Dreier2337f802007-10-23 19:57:54 -070062 IPOIB_ENCAP_LEN = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Roland Dreier2337f802007-10-23 19:57:54 -070064 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,
Shirley Ma0f485252006-04-10 09:43:58 -070070 IPOIB_MAX_QUEUE_SIZE = 8192,
71 IPOIB_MIN_QUEUE_SIZE = 2,
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -080072 IPOIB_CM_MAX_CONN_QP = 4096,
Linus Torvalds1da177e2005-04-16 15:20:36 -070073
Roland Dreier2337f802007-10-23 19:57:54 -070074 IPOIB_NUM_WC = 4,
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
76 IPOIB_MAX_PATH_REC_QUEUE = 3,
Roland Dreier2337f802007-10-23 19:57:54 -070077 IPOIB_MAX_MCAST_QUEUE = 3,
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
Roland Dreier2337f802007-10-23 19:57:54 -070079 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,
Michael S. Tsirkin1b524962007-08-16 15:36:16 +030089 IPOIB_FLAG_UMCAST = 10,
Linus Torvalds1da177e2005-04-16 15:20:36 -070090
91 IPOIB_MAX_BACKOFF_SECONDS = 16,
92
Roland Dreier2337f802007-10-23 19:57:54 -070093 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 IPOIB_MCAST_FLAG_SENDONLY = 1,
Roland Dreier2337f802007-10-23 19:57:54 -070095 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 IPOIB_MCAST_FLAG_ATTACHED = 3,
97};
98
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +020099#define IPOIB_OP_RECV (1ul << 31)
100#ifdef CONFIG_INFINIBAND_IPOIB_CM
Michael S. Tsirkin1b524962007-08-16 15:36:16 +0300101#define IPOIB_OP_CM (1ul << 30)
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200102#else
Michael S. Tsirkin1b524962007-08-16 15:36:16 +0300103#define IPOIB_OP_CM (0)
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200104#endif
105
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106/* structs */
107
108struct ipoib_header {
Sean Hefty97f52eb2005-08-13 21:05:57 -0700109 __be16 proto;
110 u16 reserved;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111};
112
113struct ipoib_pseudoheader {
114 u8 hwaddr[INFINIBAND_ALEN];
115};
116
Sean Hefty81668832007-08-02 12:21:31 -0700117/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
118struct ipoib_mcast {
119 struct ib_sa_mcmember_rec mcmember;
120 struct ib_sa_multicast *mc;
Roland Dreier2337f802007-10-23 19:57:54 -0700121 struct ipoib_ah *ah;
Sean Hefty81668832007-08-02 12:21:31 -0700122
123 struct rb_node rb_node;
124 struct list_head list;
125
126 unsigned long created;
127 unsigned long backoff;
128
129 unsigned long flags;
130 unsigned char logcount;
131
132 struct list_head neigh_list;
133
134 struct sk_buff_head pkt_queue;
135
136 struct net_device *dev;
137};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138
Roland Dreier1993d682005-10-28 15:30:34 -0700139struct ipoib_rx_buf {
140 struct sk_buff *skb;
Ralph Campbell37ccf9d2006-12-12 14:30:48 -0800141 u64 mapping;
Roland Dreier1993d682005-10-28 15:30:34 -0700142};
143
144struct ipoib_tx_buf {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 struct sk_buff *skb;
Ralph Campbell37ccf9d2006-12-12 14:30:48 -0800146 u64 mapping;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147};
148
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200149struct ib_cm_id;
150
151struct ipoib_cm_data {
152 __be32 qpn; /* High byte MUST be ignored on receive */
153 __be32 mtu;
154};
155
Michael S. Tsirkin518b1642007-05-21 15:04:59 +0300156/*
157 * Quoting 10.3.1 Queue Pair and EE Context States:
158 *
159 * Note, for QPs that are associated with an SRQ, the Consumer should take the
160 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
161 * Reset State. The Consumer may invoke the Destroy QP without first performing
162 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
163 * Last WQE Reached Event. However, if the Consumer does not wait for the
164 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
165 * leakage may occur. Therefore, it is good programming practice to tear down a
166 * QP that is associated with an SRQ by using the following process:
167 *
168 * - Put the QP in the Error State
169 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
170 * - either:
171 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
172 * to be empty or the number of Poll CQ operations has exceeded
173 * CQ capacity size;
174 * - or
175 * post another WR that completes on the same CQ and wait for this
176 * WR to return as a WC;
177 * - and then invoke a Destroy QP or Reset QP.
178 *
179 * We use the second option and wait for a completion on the
Michael S. Tsirkinec56dc02007-05-28 14:37:27 +0300180 * same CQ before destroying QPs attached to our SRQ.
Michael S. Tsirkin518b1642007-05-21 15:04:59 +0300181 */
182
183enum ipoib_cm_state {
184 IPOIB_CM_RX_LIVE,
185 IPOIB_CM_RX_ERROR, /* Ignored by stale task */
186 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */
187};
188
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200189struct ipoib_cm_rx {
Roland Dreier2337f802007-10-23 19:57:54 -0700190 struct ib_cm_id *id;
191 struct ib_qp *qp;
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800192 struct ipoib_cm_rx_buf *rx_ring;
Roland Dreier2337f802007-10-23 19:57:54 -0700193 struct list_head list;
194 struct net_device *dev;
195 unsigned long jiffies;
196 enum ipoib_cm_state state;
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800197 int recv_count;
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200198};
199
200struct ipoib_cm_tx {
Roland Dreier2337f802007-10-23 19:57:54 -0700201 struct ib_cm_id *id;
202 struct ib_qp *qp;
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200203 struct list_head list;
204 struct net_device *dev;
205 struct ipoib_neigh *neigh;
206 struct ipoib_path *path;
207 struct ipoib_tx_buf *tx_ring;
Roland Dreier2337f802007-10-23 19:57:54 -0700208 unsigned tx_head;
209 unsigned tx_tail;
210 unsigned long flags;
211 u32 mtu;
212 struct ib_wc ibwc[IPOIB_NUM_WC];
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200213};
214
215struct ipoib_cm_rx_buf {
216 struct sk_buff *skb;
217 u64 mapping[IPOIB_CM_RX_SG];
218};
219
220struct ipoib_cm_dev_priv {
Roland Dreier2337f802007-10-23 19:57:54 -0700221 struct ib_srq *srq;
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200222 struct ipoib_cm_rx_buf *srq_ring;
Roland Dreier2337f802007-10-23 19:57:54 -0700223 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 */
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200229 struct work_struct start_task;
230 struct work_struct reap_task;
231 struct work_struct skb_task;
Michael S. Tsirkin518b1642007-05-21 15:04:59 +0300232 struct work_struct rx_reap_task;
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200233 struct delayed_work stale_task;
234 struct sk_buff_head skb_queue;
Roland Dreier2337f802007-10-23 19:57:54 -0700235 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];
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200239 struct ib_recv_wr rx_wr;
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800240 int nonsrq_conn_qp;
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200241};
242
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243/*
244 * Device private locking: tx_lock protects members used in TX fast
245 * path (and we use LLTX so upper layers don't do extra locking).
246 * lock protects everything else. lock nests inside of tx_lock (ie
247 * tx_lock must be acquired first if needed).
248 */
249struct ipoib_dev_priv {
250 spinlock_t lock;
251
252 struct net_device *dev;
253
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700254 struct napi_struct napi;
255
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 unsigned long flags;
257
Ingo Molnar95ed6442006-01-13 14:51:39 -0800258 struct mutex mcast_mutex;
259 struct mutex vlan_mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260
261 struct rb_root path_tree;
262 struct list_head path_list;
263
264 struct ipoib_mcast *broadcast;
265 struct list_head multicast_list;
266 struct rb_root multicast_tree;
267
Yosef Etigin26bbf132007-05-19 08:51:54 -0700268 struct delayed_work pkey_poll_task;
David Howellsc4028952006-11-22 14:57:56 +0000269 struct delayed_work mcast_task;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 struct work_struct flush_task;
271 struct work_struct restart_task;
David Howellsc4028952006-11-22 14:57:56 +0000272 struct delayed_work ah_reap_task;
Yosef Etigin26bbf132007-05-19 08:51:54 -0700273 struct work_struct pkey_event_task;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274
275 struct ib_device *ca;
Roland Dreier2337f802007-10-23 19:57:54 -0700276 u8 port;
277 u16 pkey;
278 u16 pkey_index;
279 struct ib_pd *pd;
280 struct ib_mr *mr;
281 struct ib_cq *cq;
282 struct ib_qp *qp;
283 u32 qkey;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284
285 union ib_gid local_gid;
Roland Dreier2337f802007-10-23 19:57:54 -0700286 u16 local_lid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
288 unsigned int admin_mtu;
289 unsigned int mcast_mtu;
290
Roland Dreier1993d682005-10-28 15:30:34 -0700291 struct ipoib_rx_buf *rx_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
Roland Dreier2337f802007-10-23 19:57:54 -0700293 spinlock_t tx_lock;
Roland Dreier1993d682005-10-28 15:30:34 -0700294 struct ipoib_tx_buf *tx_ring;
Roland Dreier2337f802007-10-23 19:57:54 -0700295 unsigned tx_head;
296 unsigned tx_tail;
297 struct ib_sge tx_sge;
Roland Dreier1993d682005-10-28 15:30:34 -0700298 struct ib_send_wr tx_wr;
Roland Dreier2337f802007-10-23 19:57:54 -0700299 unsigned tx_outstanding;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
301 struct ib_wc ibwc[IPOIB_NUM_WC];
302
303 struct list_head dead_ahs;
304
305 struct ib_event_handler event_handler;
306
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 struct net_device *parent;
308 struct list_head child_intfs;
309 struct list_head list;
310
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200311#ifdef CONFIG_INFINIBAND_IPOIB_CM
312 struct ipoib_cm_dev_priv cm;
313#endif
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
316 struct list_head fs_list;
317 struct dentry *mcg_dentry;
Roland Dreier1732b0e2005-11-07 10:33:11 -0800318 struct dentry *path_dentry;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319#endif
320};
321
322struct ipoib_ah {
323 struct net_device *dev;
Roland Dreier2337f802007-10-23 19:57:54 -0700324 struct ib_ah *ah;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 struct list_head list;
Roland Dreier2337f802007-10-23 19:57:54 -0700326 struct kref ref;
327 unsigned last_send;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328};
329
330struct ipoib_path {
331 struct net_device *dev;
332 struct ib_sa_path_rec pathrec;
333 struct ipoib_ah *ah;
334 struct sk_buff_head queue;
335
336 struct list_head neigh_list;
337
Roland Dreier2337f802007-10-23 19:57:54 -0700338 int query_id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 struct ib_sa_query *query;
340 struct completion done;
341
Roland Dreier2337f802007-10-23 19:57:54 -0700342 struct rb_node rb_node;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 struct list_head list;
344};
345
346struct ipoib_neigh {
347 struct ipoib_ah *ah;
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200348#ifdef CONFIG_INFINIBAND_IPOIB_CM
349 struct ipoib_cm_tx *cm;
350#endif
Roland Dreier2337f802007-10-23 19:57:54 -0700351 union ib_gid dgid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 struct sk_buff_head queue;
353
354 struct neighbour *neighbour;
Moni Shoua732a2172007-10-09 19:43:36 -0700355 struct net_device *dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
357 struct list_head list;
358};
359
Michael S. Tsirkin44af79f2006-02-20 21:50:39 -0800360/*
361 * We stash a pointer to our private neighbour information after our
362 * hardware address in neigh->ha. The ALIGN() expression here makes
363 * sure that this pointer is stored aligned so that an unaligned
364 * load is not needed to dereference it.
365 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
367{
Michael S. Tsirkin44af79f2006-02-20 21:50:39 -0800368 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
369 INFINIBAND_ALEN, sizeof(void *));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370}
371
Moni Shoua732a2172007-10-09 19:43:36 -0700372struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
373 struct net_device *dev);
Michael S. Tsirkin2745b5b2006-11-16 14:16:47 +0200374void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);
Michael S. Tsirkind2e06552006-04-04 19:59:40 +0300375
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376extern struct workqueue_struct *ipoib_workqueue;
377
378/* functions */
379
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700380int ipoib_poll(struct napi_struct *napi, int budget);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
382
383struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
384 struct ib_pd *pd, struct ib_ah_attr *attr);
385void ipoib_free_ah(struct kref *kref);
386static inline void ipoib_put_ah(struct ipoib_ah *ah)
387{
388 kref_put(&ah->ref, ipoib_free_ah);
389}
390
Roland Dreier8ae5a8a2005-11-02 20:51:01 -0800391int ipoib_open(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392int ipoib_add_pkey_attr(struct net_device *dev);
Or Gerlitz335a64a5a2007-10-08 10:13:00 +0200393int ipoib_add_umcast_attr(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
395void ipoib_send(struct net_device *dev, struct sk_buff *skb,
396 struct ipoib_ah *address, u32 qpn);
David Howellsc4028952006-11-22 14:57:56 +0000397void ipoib_reap_ah(struct work_struct *work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
399void ipoib_flush_paths(struct net_device *dev);
400struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);
401
402int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
David Howellsc4028952006-11-22 14:57:56 +0000403void ipoib_ib_dev_flush(struct work_struct *work);
Yosef Etigin26bbf132007-05-19 08:51:54 -0700404void ipoib_pkey_event(struct work_struct *work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405void ipoib_ib_dev_cleanup(struct net_device *dev);
406
407int ipoib_ib_dev_open(struct net_device *dev);
408int ipoib_ib_dev_up(struct net_device *dev);
Jack Morgenstein0b3ea082006-03-20 10:08:24 -0800409int ipoib_ib_dev_down(struct net_device *dev, int flush);
Yosef Etigin26bbf132007-05-19 08:51:54 -0700410int ipoib_ib_dev_stop(struct net_device *dev, int flush);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
412int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
413void ipoib_dev_cleanup(struct net_device *dev);
414
David Howellsc4028952006-11-22 14:57:56 +0000415void ipoib_mcast_join_task(struct work_struct *work);
Jack Morgenstein37c22a72006-05-29 19:14:05 +0300416void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417
David Howellsc4028952006-11-22 14:57:56 +0000418void ipoib_mcast_restart_task(struct work_struct *work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419int ipoib_mcast_start_thread(struct net_device *dev);
Roland Dreier8d2cae02005-09-20 10:52:04 -0700420int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
422void ipoib_mcast_dev_down(struct net_device *dev);
423void ipoib_mcast_dev_flush(struct net_device *dev);
424
Roland Dreier8ae5a8a2005-11-02 20:51:01 -0800425#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
428void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
429 union ib_gid *gid,
430 unsigned long *created,
431 unsigned int *queuelen,
432 unsigned int *complete,
433 unsigned int *send_only);
Roland Dreier1732b0e2005-11-07 10:33:11 -0800434
435struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
436int ipoib_path_iter_next(struct ipoib_path_iter *iter);
437void ipoib_path_iter_read(struct ipoib_path_iter *iter,
438 struct ipoib_path *path);
Roland Dreier8ae5a8a2005-11-02 20:51:01 -0800439#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
441int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
442 union ib_gid *mgid);
443int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
444 union ib_gid *mgid);
445
Roland Dreier5b6810e2005-10-11 11:08:24 -0700446int ipoib_init_qp(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
448void ipoib_transport_dev_cleanup(struct net_device *dev);
449
450void ipoib_event(struct ib_event_handler *handler,
451 struct ib_event *record);
452
453int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
454int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);
455
David Howellsc4028952006-11-22 14:57:56 +0000456void ipoib_pkey_poll(struct work_struct *work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457int ipoib_pkey_dev_delay_open(struct net_device *dev);
Michael S. Tsirkin2dfbfc32007-05-24 18:32:46 +0300458void ipoib_drain_cq(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200460#ifdef CONFIG_INFINIBAND_IPOIB_CM
461
Roland Dreier2337f802007-10-23 19:57:54 -0700462#define IPOIB_FLAGS_RC 0x80
463#define IPOIB_FLAGS_UC 0x40
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200464
465/* We don't support UC connections at the moment */
466#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
467
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800468extern int ipoib_max_conn_qp;
469
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200470static inline int ipoib_cm_admin_enabled(struct net_device *dev)
471{
472 struct ipoib_dev_priv *priv = netdev_priv(dev);
473 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
474 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
475}
476
477static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
478{
479 struct ipoib_dev_priv *priv = netdev_priv(dev);
480 return IPOIB_CM_SUPPORTED(n->ha) &&
481 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
482}
483
484static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
485
486{
487 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
488}
489
490static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
491{
492 return neigh->cm;
493}
494
495static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
496{
497 neigh->cm = tx;
498}
499
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800500static inline int ipoib_cm_has_srq(struct net_device *dev)
501{
502 struct ipoib_dev_priv *priv = netdev_priv(dev);
503 return !!priv->cm.srq;
504}
505
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200506void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
507int ipoib_cm_dev_open(struct net_device *dev);
508void ipoib_cm_dev_stop(struct net_device *dev);
509int ipoib_cm_dev_init(struct net_device *dev);
510int ipoib_cm_add_mode_attr(struct net_device *dev);
511void ipoib_cm_dev_cleanup(struct net_device *dev);
512struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
513 struct ipoib_neigh *neigh);
514void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
Roland Dreier2337f802007-10-23 19:57:54 -0700515void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200516 unsigned int mtu);
517void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
Michael S. Tsirkin1b524962007-08-16 15:36:16 +0300518void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200519#else
520
521struct ipoib_cm_tx;
522
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800523#define ipoib_max_conn_qp 0
524
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200525static inline int ipoib_cm_admin_enabled(struct net_device *dev)
526{
527 return 0;
528}
529static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
530
531{
532 return 0;
533}
534
535static inline int ipoib_cm_up(struct ipoib_neigh *neigh)
536
537{
538 return 0;
539}
540
541static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
542{
543 return NULL;
544}
545
546static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
547{
548}
549
Pradeep Satyanarayana68e995a2008-01-25 14:15:24 -0800550static inline int ipoib_cm_has_srq(struct net_device *dev)
551{
552 return 0;
553}
554
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200555static inline
556void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
557{
558 return;
559}
560
561static inline
562int ipoib_cm_dev_open(struct net_device *dev)
563{
564 return 0;
565}
566
567static inline
568void ipoib_cm_dev_stop(struct net_device *dev)
569{
570 return;
571}
572
573static inline
574int ipoib_cm_dev_init(struct net_device *dev)
575{
576 return -ENOSYS;
577}
578
579static inline
580void ipoib_cm_dev_cleanup(struct net_device *dev)
581{
582 return;
583}
584
585static inline
586struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
587 struct ipoib_neigh *neigh)
588{
589 return NULL;
590}
591
592static inline
593void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
594{
595 return;
596}
597
598static inline
599int ipoib_cm_add_mode_attr(struct net_device *dev)
600{
601 return 0;
602}
603
Roland Dreier2337f802007-10-23 19:57:54 -0700604static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200605 unsigned int mtu)
606{
607 dev_kfree_skb_any(skb);
608}
609
610static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
611{
612}
613
Michael S. Tsirkin1b524962007-08-16 15:36:16 +0300614static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
615{
616}
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200617#endif
618
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
Roland Dreier1732b0e2005-11-07 10:33:11 -0800620void ipoib_create_debug_files(struct net_device *dev);
621void ipoib_delete_debug_files(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622int ipoib_register_debugfs(void);
623void ipoib_unregister_debugfs(void);
624#else
Roland Dreier1732b0e2005-11-07 10:33:11 -0800625static inline void ipoib_create_debug_files(struct net_device *dev) { }
626static inline void ipoib_delete_debug_files(struct net_device *dev) { }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627static inline int ipoib_register_debugfs(void) { return 0; }
628static inline void ipoib_unregister_debugfs(void) { }
629#endif
630
631
632#define ipoib_printk(level, priv, format, arg...) \
633 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
634#define ipoib_warn(priv, format, arg...) \
635 ipoib_printk(KERN_WARNING, priv, format , ## arg)
636
Shirley Ma0f485252006-04-10 09:43:58 -0700637extern int ipoib_sendq_size;
638extern int ipoib_recvq_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639
Michael S. Tsirkinc1a0b232006-08-21 16:40:12 -0700640extern struct ib_sa_client ipoib_sa_client;
641
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
643extern int ipoib_debug_level;
644
645#define ipoib_dbg(priv, format, arg...) \
Roland Dreier2337f802007-10-23 19:57:54 -0700646 do { \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 if (ipoib_debug_level > 0) \
648 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
649 } while (0)
650#define ipoib_dbg_mcast(priv, format, arg...) \
Roland Dreier2337f802007-10-23 19:57:54 -0700651 do { \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 if (mcast_debug_level > 0) \
653 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
654 } while (0)
655#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
656#define ipoib_dbg(priv, format, arg...) \
657 do { (void) (priv); } while (0)
658#define ipoib_dbg_mcast(priv, format, arg...) \
659 do { (void) (priv); } while (0)
660#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
661
662#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
663#define ipoib_dbg_data(priv, format, arg...) \
Roland Dreier2337f802007-10-23 19:57:54 -0700664 do { \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 if (data_debug_level > 0) \
666 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
667 } while (0)
668#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
669#define ipoib_dbg_data(priv, format, arg...) \
670 do { (void) (priv); } while (0)
671#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
672
673
Jack Morgenstein37c22a72006-05-29 19:14:05 +0300674#define IPOIB_GID_FMT "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
675 "%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676
Jack Morgenstein37c22a72006-05-29 19:14:05 +0300677#define IPOIB_GID_RAW_ARG(gid) ((u8 *)(gid))[0], \
678 ((u8 *)(gid))[1], \
679 ((u8 *)(gid))[2], \
680 ((u8 *)(gid))[3], \
681 ((u8 *)(gid))[4], \
682 ((u8 *)(gid))[5], \
683 ((u8 *)(gid))[6], \
684 ((u8 *)(gid))[7], \
685 ((u8 *)(gid))[8], \
686 ((u8 *)(gid))[9], \
687 ((u8 *)(gid))[10],\
688 ((u8 *)(gid))[11],\
689 ((u8 *)(gid))[12],\
690 ((u8 *)(gid))[13],\
691 ((u8 *)(gid))[14],\
692 ((u8 *)(gid))[15]
693
694#define IPOIB_GID_ARG(gid) IPOIB_GID_RAW_ARG((gid).raw)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695
Michael S. Tsirkin839fcab2007-02-05 22:12:23 +0200696#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
697
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698#endif /* _IPOIB_H */