2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
38 #include <linux/list.h>
39 #include <linux/skbuff.h>
40 #include <linux/netdevice.h>
41 #include <linux/workqueue.h>
42 #include <linux/kref.h>
43 #include <linux/if_infiniband.h>
44 #include <linux/mutex.h>
46 #include <net/neighbour.h>
47 #include <net/sch_generic.h>
49 #include <linux/atomic.h>
51 #include <rdma/ib_verbs.h>
52 #include <rdma/ib_pack.h>
53 #include <rdma/ib_sa.h>
54 #include <linux/sched.h>
58 enum ipoib_flush_level
{
67 IPOIB_UD_HEAD_SIZE
= IB_GRH_BYTES
+ IPOIB_ENCAP_LEN
,
68 IPOIB_UD_RX_SG
= 2, /* max buffer needed for 4K mtu */
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
,
74 IPOIB_RX_RING_SIZE
= 256,
75 IPOIB_TX_RING_SIZE
= 128,
76 IPOIB_MAX_QUEUE_SIZE
= 8192,
77 IPOIB_MIN_QUEUE_SIZE
= 2,
78 IPOIB_CM_MAX_CONN_QP
= 4096,
82 IPOIB_MAX_PATH_REC_QUEUE
= 3,
83 IPOIB_MAX_MCAST_QUEUE
= 64,
85 IPOIB_FLAG_OPER_UP
= 0,
86 IPOIB_FLAG_INITIALIZED
= 1,
87 IPOIB_FLAG_ADMIN_UP
= 2,
88 IPOIB_PKEY_ASSIGNED
= 3,
89 IPOIB_FLAG_SUBINTERFACE
= 5,
90 IPOIB_STOP_REAPER
= 7,
91 IPOIB_FLAG_ADMIN_CM
= 9,
92 IPOIB_FLAG_UMCAST
= 10,
93 IPOIB_STOP_NEIGH_GC
= 11,
94 IPOIB_NEIGH_TBL_FLUSH
= 12,
95 IPOIB_FLAG_DEV_ADDR_SET
= 13,
96 IPOIB_FLAG_DEV_ADDR_CTRL
= 14,
97 IPOIB_FLAG_GOING_DOWN
= 15,
99 IPOIB_MAX_BACKOFF_SECONDS
= 16,
101 IPOIB_MCAST_FLAG_FOUND
= 0, /* used in set_multicast_list */
102 IPOIB_MCAST_FLAG_SENDONLY
= 1,
104 * For IPOIB_MCAST_FLAG_BUSY
105 * When set, in flight join and mcast->mc is unreliable
106 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
107 * haven't started yet
108 * When clear and mcast->mc is valid pointer, join was successful
110 IPOIB_MCAST_FLAG_BUSY
= 2,
111 IPOIB_MCAST_FLAG_ATTACHED
= 3,
114 IPOIB_CM_COPYBREAK
= 256,
117 IPOIB_LEGACY_CHILD
= 1,
118 IPOIB_RTNL_CHILD
= 2,
121 #define IPOIB_OP_RECV (1ul << 31)
122 #ifdef CONFIG_INFINIBAND_IPOIB_CM
123 #define IPOIB_OP_CM (1ul << 30)
125 #define IPOIB_OP_CM (0)
128 #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
132 struct ipoib_header
{
138 struct qdisc_skb_cb qdisc_cb
;
139 u8 hwaddr
[INFINIBAND_ALEN
];
142 static inline struct ipoib_cb
*ipoib_skb_cb(const struct sk_buff
*skb
)
144 BUILD_BUG_ON(sizeof(skb
->cb
) < sizeof(struct ipoib_cb
));
145 return (struct ipoib_cb
*)skb
->cb
;
148 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */
150 struct ib_sa_mcmember_rec mcmember
;
151 struct ib_sa_multicast
*mc
;
154 struct rb_node rb_node
;
155 struct list_head list
;
157 unsigned long created
;
158 unsigned long backoff
;
159 unsigned long delay_until
;
162 unsigned char logcount
;
164 struct list_head neigh_list
;
166 struct sk_buff_head pkt_queue
;
168 struct net_device
*dev
;
169 struct completion done
;
172 struct ipoib_rx_buf
{
174 u64 mapping
[IPOIB_UD_RX_SG
];
177 struct ipoib_tx_buf
{
179 u64 mapping
[MAX_SKB_FRAGS
+ 1];
182 struct ipoib_cm_tx_buf
{
189 struct ipoib_cm_data
{
190 __be32 qpn
; /* High byte MUST be ignored on receive */
195 * Quoting 10.3.1 Queue Pair and EE Context States:
197 * Note, for QPs that are associated with an SRQ, the Consumer should take the
198 * QP through the Error State before invoking a Destroy QP or a Modify QP to the
199 * Reset State. The Consumer may invoke the Destroy QP without first performing
200 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous
201 * Last WQE Reached Event. However, if the Consumer does not wait for the
202 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment
203 * leakage may occur. Therefore, it is good programming practice to tear down a
204 * QP that is associated with an SRQ by using the following process:
206 * - Put the QP in the Error State
207 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;
209 * drain the CQ by invoking the Poll CQ verb and either wait for CQ
210 * to be empty or the number of Poll CQ operations has exceeded
213 * post another WR that completes on the same CQ and wait for this
214 * WR to return as a WC;
215 * - and then invoke a Destroy QP or Reset QP.
217 * We use the second option and wait for a completion on the
218 * same CQ before destroying QPs attached to our SRQ.
221 enum ipoib_cm_state
{
223 IPOIB_CM_RX_ERROR
, /* Ignored by stale task */
224 IPOIB_CM_RX_FLUSH
/* Last WQE Reached event observed */
230 struct ipoib_cm_rx_buf
*rx_ring
;
231 struct list_head list
;
232 struct net_device
*dev
;
233 unsigned long jiffies
;
234 enum ipoib_cm_state state
;
241 struct list_head list
;
242 struct net_device
*dev
;
243 struct ipoib_neigh
*neigh
;
244 struct ipoib_path
*path
;
245 struct ipoib_tx_buf
*tx_ring
;
250 unsigned max_send_sge
;
253 struct ipoib_cm_rx_buf
{
255 u64 mapping
[IPOIB_CM_RX_SG
];
258 struct ipoib_cm_dev_priv
{
260 struct ipoib_cm_rx_buf
*srq_ring
;
262 struct list_head passive_ids
; /* state: LIVE */
263 struct list_head rx_error_list
; /* state: ERROR */
264 struct list_head rx_flush_list
; /* state: FLUSH, drain not started */
265 struct list_head rx_drain_list
; /* state: FLUSH, drain started */
266 struct list_head rx_reap_list
; /* state: FLUSH, drain done */
267 struct work_struct start_task
;
268 struct work_struct reap_task
;
269 struct work_struct skb_task
;
270 struct work_struct rx_reap_task
;
271 struct delayed_work stale_task
;
272 struct sk_buff_head skb_queue
;
273 struct list_head start_list
;
274 struct list_head reap_list
;
275 struct ib_wc ibwc
[IPOIB_NUM_WC
];
276 struct ib_sge rx_sge
[IPOIB_CM_RX_SG
];
277 struct ib_recv_wr rx_wr
;
283 struct ipoib_ethtool_st
{
285 u16 max_coalesced_frames
;
288 struct ipoib_neigh_table
;
290 struct ipoib_neigh_hash
{
291 struct ipoib_neigh_table
*ntbl
;
292 struct ipoib_neigh __rcu
**buckets
;
298 struct ipoib_neigh_table
{
299 struct ipoib_neigh_hash __rcu
*htbl
;
301 struct completion flushed
;
302 struct completion deleted
;
305 struct ipoib_qp_state_validate
{
306 struct work_struct work
;
307 struct ipoib_dev_priv
*priv
;
311 * Device private locking: network stack tx_lock protects members used
312 * in TX fast path, lock protects everything else. lock nests inside
313 * of tx_lock (ie tx_lock must be acquired first if needed).
315 struct ipoib_dev_priv
{
318 struct net_device
*dev
;
320 struct napi_struct napi
;
324 struct rw_semaphore vlan_rwsem
;
326 struct rb_root path_tree
;
327 struct list_head path_list
;
329 struct ipoib_neigh_table ntbl
;
331 struct ipoib_mcast
*broadcast
;
332 struct list_head multicast_list
;
333 struct rb_root multicast_tree
;
335 struct workqueue_struct
*wq
;
336 struct delayed_work mcast_task
;
337 struct work_struct carrier_on_task
;
338 struct work_struct flush_light
;
339 struct work_struct flush_normal
;
340 struct work_struct flush_heavy
;
341 struct work_struct restart_task
;
342 struct delayed_work ah_reap_task
;
343 struct delayed_work neigh_reap_task
;
344 struct ib_device
*ca
;
349 struct ib_cq
*recv_cq
;
350 struct ib_cq
*send_cq
;
354 union ib_gid local_gid
;
357 unsigned int admin_mtu
;
358 unsigned int mcast_mtu
;
359 unsigned int max_ib_mtu
;
361 struct ipoib_rx_buf
*rx_ring
;
363 struct ipoib_tx_buf
*tx_ring
;
366 struct ib_sge tx_sge
[MAX_SKB_FRAGS
+ 1];
367 struct ib_ud_wr tx_wr
;
368 unsigned tx_outstanding
;
369 struct ib_wc send_wc
[MAX_SEND_CQE
];
371 struct ib_recv_wr rx_wr
;
372 struct ib_sge rx_sge
[IPOIB_UD_RX_SG
];
374 struct ib_wc ibwc
[IPOIB_NUM_WC
];
376 struct list_head dead_ahs
;
378 struct ib_event_handler event_handler
;
380 struct net_device
*parent
;
381 struct list_head child_intfs
;
382 struct list_head list
;
385 #ifdef CONFIG_INFINIBAND_IPOIB_CM
386 struct ipoib_cm_dev_priv cm
;
389 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
390 struct list_head fs_list
;
391 struct dentry
*mcg_dentry
;
392 struct dentry
*path_dentry
;
395 struct ipoib_ethtool_st ethtool
;
396 struct timer_list poll_timer
;
397 unsigned max_send_sge
;
398 bool sm_fullmember_sendonly_support
;
402 struct net_device
*dev
;
404 struct list_head list
;
410 struct net_device
*dev
;
411 struct ib_sa_path_rec pathrec
;
413 struct sk_buff_head queue
;
415 struct list_head neigh_list
;
418 struct ib_sa_query
*query
;
419 struct completion done
;
421 struct rb_node rb_node
;
422 struct list_head list
;
428 #ifdef CONFIG_INFINIBAND_IPOIB_CM
429 struct ipoib_cm_tx
*cm
;
431 u8 daddr
[INFINIBAND_ALEN
];
432 struct sk_buff_head queue
;
434 struct net_device
*dev
;
436 struct list_head list
;
437 struct ipoib_neigh __rcu
*hnext
;
443 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
444 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
446 void ipoib_neigh_dtor(struct ipoib_neigh
*neigh
);
447 static inline void ipoib_neigh_put(struct ipoib_neigh
*neigh
)
449 if (atomic_dec_and_test(&neigh
->refcnt
))
450 ipoib_neigh_dtor(neigh
);
452 struct ipoib_neigh
*ipoib_neigh_get(struct net_device
*dev
, u8
*daddr
);
453 struct ipoib_neigh
*ipoib_neigh_alloc(u8
*daddr
,
454 struct net_device
*dev
);
455 void ipoib_neigh_free(struct ipoib_neigh
*neigh
);
456 void ipoib_del_neighs_by_gid(struct net_device
*dev
, u8
*gid
);
458 extern struct workqueue_struct
*ipoib_workqueue
;
462 int ipoib_poll(struct napi_struct
*napi
, int budget
);
463 void ipoib_ib_completion(struct ib_cq
*cq
, void *dev_ptr
);
464 void ipoib_send_comp_handler(struct ib_cq
*cq
, void *dev_ptr
);
466 struct ipoib_ah
*ipoib_create_ah(struct net_device
*dev
,
467 struct ib_pd
*pd
, struct ib_ah_attr
*attr
);
468 void ipoib_free_ah(struct kref
*kref
);
469 static inline void ipoib_put_ah(struct ipoib_ah
*ah
)
471 kref_put(&ah
->ref
, ipoib_free_ah
);
473 int ipoib_open(struct net_device
*dev
);
474 int ipoib_add_pkey_attr(struct net_device
*dev
);
475 int ipoib_add_umcast_attr(struct net_device
*dev
);
477 void ipoib_send(struct net_device
*dev
, struct sk_buff
*skb
,
478 struct ipoib_ah
*address
, u32 qpn
);
479 void ipoib_reap_ah(struct work_struct
*work
);
481 struct ipoib_path
*__path_find(struct net_device
*dev
, void *gid
);
482 void ipoib_mark_paths_invalid(struct net_device
*dev
);
483 void ipoib_flush_paths(struct net_device
*dev
);
484 int ipoib_check_sm_sendonly_fullmember_support(struct ipoib_dev_priv
*priv
);
485 struct ipoib_dev_priv
*ipoib_intf_alloc(const char *format
);
487 int ipoib_ib_dev_init(struct net_device
*dev
, struct ib_device
*ca
, int port
);
488 void ipoib_ib_dev_flush_light(struct work_struct
*work
);
489 void ipoib_ib_dev_flush_normal(struct work_struct
*work
);
490 void ipoib_ib_dev_flush_heavy(struct work_struct
*work
);
491 void ipoib_pkey_event(struct work_struct
*work
);
492 void ipoib_ib_dev_cleanup(struct net_device
*dev
);
494 int ipoib_ib_dev_open(struct net_device
*dev
);
495 int ipoib_ib_dev_up(struct net_device
*dev
);
496 int ipoib_ib_dev_down(struct net_device
*dev
);
497 int ipoib_ib_dev_stop(struct net_device
*dev
);
498 void ipoib_pkey_dev_check_presence(struct net_device
*dev
);
500 int ipoib_dev_init(struct net_device
*dev
, struct ib_device
*ca
, int port
);
501 void ipoib_dev_cleanup(struct net_device
*dev
);
503 void ipoib_mcast_join_task(struct work_struct
*work
);
504 void ipoib_mcast_carrier_on_task(struct work_struct
*work
);
505 void ipoib_mcast_send(struct net_device
*dev
, u8
*daddr
, struct sk_buff
*skb
);
507 void ipoib_mcast_restart_task(struct work_struct
*work
);
508 int ipoib_mcast_start_thread(struct net_device
*dev
);
509 int ipoib_mcast_stop_thread(struct net_device
*dev
);
511 void ipoib_mcast_dev_down(struct net_device
*dev
);
512 void ipoib_mcast_dev_flush(struct net_device
*dev
);
514 int ipoib_dma_map_tx(struct ib_device
*ca
, struct ipoib_tx_buf
*tx_req
);
515 void ipoib_dma_unmap_tx(struct ipoib_dev_priv
*priv
,
516 struct ipoib_tx_buf
*tx_req
);
518 static inline void ipoib_build_sge(struct ipoib_dev_priv
*priv
,
519 struct ipoib_tx_buf
*tx_req
)
522 struct sk_buff
*skb
= tx_req
->skb
;
523 skb_frag_t
*frags
= skb_shinfo(skb
)->frags
;
524 int nr_frags
= skb_shinfo(skb
)->nr_frags
;
525 u64
*mapping
= tx_req
->mapping
;
527 if (skb_headlen(skb
)) {
528 priv
->tx_sge
[0].addr
= mapping
[0];
529 priv
->tx_sge
[0].length
= skb_headlen(skb
);
534 for (i
= 0; i
< nr_frags
; ++i
) {
535 priv
->tx_sge
[i
+ off
].addr
= mapping
[i
+ off
];
536 priv
->tx_sge
[i
+ off
].length
= skb_frag_size(&frags
[i
]);
538 priv
->tx_wr
.wr
.num_sge
= nr_frags
+ off
;
541 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
542 struct ipoib_mcast_iter
*ipoib_mcast_iter_init(struct net_device
*dev
);
543 int ipoib_mcast_iter_next(struct ipoib_mcast_iter
*iter
);
544 void ipoib_mcast_iter_read(struct ipoib_mcast_iter
*iter
,
546 unsigned long *created
,
547 unsigned int *queuelen
,
548 unsigned int *complete
,
549 unsigned int *send_only
);
551 struct ipoib_path_iter
*ipoib_path_iter_init(struct net_device
*dev
);
552 int ipoib_path_iter_next(struct ipoib_path_iter
*iter
);
553 void ipoib_path_iter_read(struct ipoib_path_iter
*iter
,
554 struct ipoib_path
*path
);
557 int ipoib_mcast_attach(struct net_device
*dev
, u16 mlid
,
558 union ib_gid
*mgid
, int set_qkey
);
559 void ipoib_mcast_remove_list(struct list_head
*remove_list
);
560 void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv
*priv
, u8
*mgid
,
561 struct list_head
*remove_list
);
563 int ipoib_init_qp(struct net_device
*dev
);
564 int ipoib_transport_dev_init(struct net_device
*dev
, struct ib_device
*ca
);
565 void ipoib_transport_dev_cleanup(struct net_device
*dev
);
567 void ipoib_event(struct ib_event_handler
*handler
,
568 struct ib_event
*record
);
570 int ipoib_vlan_add(struct net_device
*pdev
, unsigned short pkey
);
571 int ipoib_vlan_delete(struct net_device
*pdev
, unsigned short pkey
);
573 int __ipoib_vlan_add(struct ipoib_dev_priv
*ppriv
, struct ipoib_dev_priv
*priv
,
574 u16 pkey
, int child_type
);
576 int __init
ipoib_netlink_init(void);
577 void __exit
ipoib_netlink_fini(void);
579 void ipoib_set_umcast(struct net_device
*ndev
, int umcast_val
);
580 int ipoib_set_mode(struct net_device
*dev
, const char *buf
);
582 void ipoib_setup(struct net_device
*dev
);
584 void ipoib_pkey_open(struct ipoib_dev_priv
*priv
);
585 void ipoib_drain_cq(struct net_device
*dev
);
587 void ipoib_set_ethtool_ops(struct net_device
*dev
);
588 int ipoib_set_dev_features(struct ipoib_dev_priv
*priv
, struct ib_device
*hca
);
590 #define IPOIB_FLAGS_RC 0x80
591 #define IPOIB_FLAGS_UC 0x40
593 /* We don't support UC connections at the moment */
594 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))
596 #ifdef CONFIG_INFINIBAND_IPOIB_CM
598 extern int ipoib_max_conn_qp
;
600 static inline int ipoib_cm_admin_enabled(struct net_device
*dev
)
602 struct ipoib_dev_priv
*priv
= netdev_priv(dev
);
603 return IPOIB_CM_SUPPORTED(dev
->dev_addr
) &&
604 test_bit(IPOIB_FLAG_ADMIN_CM
, &priv
->flags
);
607 static inline int ipoib_cm_enabled(struct net_device
*dev
, u8
*hwaddr
)
609 struct ipoib_dev_priv
*priv
= netdev_priv(dev
);
610 return IPOIB_CM_SUPPORTED(hwaddr
) &&
611 test_bit(IPOIB_FLAG_ADMIN_CM
, &priv
->flags
);
614 static inline int ipoib_cm_up(struct ipoib_neigh
*neigh
)
617 return test_bit(IPOIB_FLAG_OPER_UP
, &neigh
->cm
->flags
);
620 static inline struct ipoib_cm_tx
*ipoib_cm_get(struct ipoib_neigh
*neigh
)
625 static inline void ipoib_cm_set(struct ipoib_neigh
*neigh
, struct ipoib_cm_tx
*tx
)
630 static inline int ipoib_cm_has_srq(struct net_device
*dev
)
632 struct ipoib_dev_priv
*priv
= netdev_priv(dev
);
633 return !!priv
->cm
.srq
;
636 static inline unsigned int ipoib_cm_max_mtu(struct net_device
*dev
)
638 struct ipoib_dev_priv
*priv
= netdev_priv(dev
);
639 return priv
->cm
.max_cm_mtu
;
642 void ipoib_cm_send(struct net_device
*dev
, struct sk_buff
*skb
, struct ipoib_cm_tx
*tx
);
643 int ipoib_cm_dev_open(struct net_device
*dev
);
644 void ipoib_cm_dev_stop(struct net_device
*dev
);
645 int ipoib_cm_dev_init(struct net_device
*dev
);
646 int ipoib_cm_add_mode_attr(struct net_device
*dev
);
647 void ipoib_cm_dev_cleanup(struct net_device
*dev
);
648 struct ipoib_cm_tx
*ipoib_cm_create_tx(struct net_device
*dev
, struct ipoib_path
*path
,
649 struct ipoib_neigh
*neigh
);
650 void ipoib_cm_destroy_tx(struct ipoib_cm_tx
*tx
);
651 void ipoib_cm_skb_too_long(struct net_device
*dev
, struct sk_buff
*skb
,
653 void ipoib_cm_handle_rx_wc(struct net_device
*dev
, struct ib_wc
*wc
);
654 void ipoib_cm_handle_tx_wc(struct net_device
*dev
, struct ib_wc
*wc
);
659 #define ipoib_max_conn_qp 0
661 static inline int ipoib_cm_admin_enabled(struct net_device
*dev
)
665 static inline int ipoib_cm_enabled(struct net_device
*dev
, u8
*hwaddr
)
671 static inline int ipoib_cm_up(struct ipoib_neigh
*neigh
)
677 static inline struct ipoib_cm_tx
*ipoib_cm_get(struct ipoib_neigh
*neigh
)
682 static inline void ipoib_cm_set(struct ipoib_neigh
*neigh
, struct ipoib_cm_tx
*tx
)
686 static inline int ipoib_cm_has_srq(struct net_device
*dev
)
691 static inline unsigned int ipoib_cm_max_mtu(struct net_device
*dev
)
697 void ipoib_cm_send(struct net_device
*dev
, struct sk_buff
*skb
, struct ipoib_cm_tx
*tx
)
703 int ipoib_cm_dev_open(struct net_device
*dev
)
709 void ipoib_cm_dev_stop(struct net_device
*dev
)
715 int ipoib_cm_dev_init(struct net_device
*dev
)
721 void ipoib_cm_dev_cleanup(struct net_device
*dev
)
727 struct ipoib_cm_tx
*ipoib_cm_create_tx(struct net_device
*dev
, struct ipoib_path
*path
,
728 struct ipoib_neigh
*neigh
)
734 void ipoib_cm_destroy_tx(struct ipoib_cm_tx
*tx
)
740 int ipoib_cm_add_mode_attr(struct net_device
*dev
)
745 static inline void ipoib_cm_skb_too_long(struct net_device
*dev
, struct sk_buff
*skb
,
748 dev_kfree_skb_any(skb
);
751 static inline void ipoib_cm_handle_rx_wc(struct net_device
*dev
, struct ib_wc
*wc
)
755 static inline void ipoib_cm_handle_tx_wc(struct net_device
*dev
, struct ib_wc
*wc
)
760 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
761 void ipoib_create_debug_files(struct net_device
*dev
);
762 void ipoib_delete_debug_files(struct net_device
*dev
);
763 int ipoib_register_debugfs(void);
764 void ipoib_unregister_debugfs(void);
766 static inline void ipoib_create_debug_files(struct net_device
*dev
) { }
767 static inline void ipoib_delete_debug_files(struct net_device
*dev
) { }
768 static inline int ipoib_register_debugfs(void) { return 0; }
769 static inline void ipoib_unregister_debugfs(void) { }
772 #define ipoib_printk(level, priv, format, arg...) \
773 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
774 #define ipoib_warn(priv, format, arg...) \
775 ipoib_printk(KERN_WARNING, priv, format , ## arg)
777 extern int ipoib_sendq_size
;
778 extern int ipoib_recvq_size
;
780 extern struct ib_sa_client ipoib_sa_client
;
782 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
783 extern int ipoib_debug_level
;
785 #define ipoib_dbg(priv, format, arg...) \
787 if (ipoib_debug_level > 0) \
788 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
790 #define ipoib_dbg_mcast(priv, format, arg...) \
792 if (mcast_debug_level > 0) \
793 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
795 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
796 #define ipoib_dbg(priv, format, arg...) \
797 do { (void) (priv); } while (0)
798 #define ipoib_dbg_mcast(priv, format, arg...) \
799 do { (void) (priv); } while (0)
800 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */
802 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
803 #define ipoib_dbg_data(priv, format, arg...) \
805 if (data_debug_level > 0) \
806 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
808 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
809 #define ipoib_dbg_data(priv, format, arg...) \
810 do { (void) (priv); } while (0)
811 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
813 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
815 extern const char ipoib_driver_version
[];
817 #endif /* _IPOIB_H */