1/* 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. 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 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> 42#include <linux/kref.h> 43#include <linux/if_infiniband.h> 44#include <linux/mutex.h> 45 46#include <net/neighbour.h> 47#include <net/sch_generic.h> 48 49#include <linux/atomic.h> 50 51#include <rdma/ib_verbs.h> 52#include <rdma/ib_pack.h> 53#include <rdma/ib_sa.h> 54#include <linux/sched.h> 55 56/* constants */ 57 58enum ipoib_flush_level { 59 IPOIB_FLUSH_LIGHT, 60 IPOIB_FLUSH_NORMAL, 61 IPOIB_FLUSH_HEAVY 62}; 63 64enum { 65 IPOIB_ENCAP_LEN = 4, 66 67 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, 68 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ 69 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, 79 80 IPOIB_NUM_WC = 4, 81 82 IPOIB_MAX_PATH_REC_QUEUE = 3, 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_FLAG_SUBINTERFACE = 5, 90 IPOIB_MCAST_RUN = 6, 91 IPOIB_STOP_REAPER = 7, 92 IPOIB_FLAG_ADMIN_CM = 9, 93 IPOIB_FLAG_UMCAST = 10, 94 IPOIB_STOP_NEIGH_GC = 11, 95 IPOIB_NEIGH_TBL_FLUSH = 12, 96 97 IPOIB_MAX_BACKOFF_SECONDS = 16, 98 99 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ 100 IPOIB_MCAST_FLAG_SENDONLY = 1, 101 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ 102 IPOIB_MCAST_FLAG_ATTACHED = 3, 103 IPOIB_MCAST_JOIN_STARTED = 4, 104 105 MAX_SEND_CQE = 16, 106 IPOIB_CM_COPYBREAK = 256, 107 108 IPOIB_NON_CHILD = 0, 109 IPOIB_LEGACY_CHILD = 1, 110 IPOIB_RTNL_CHILD = 2, 111}; 112 113#define IPOIB_OP_RECV (1ul << 31) 114#ifdef CONFIG_INFINIBAND_IPOIB_CM 115#define IPOIB_OP_CM (1ul << 30) 116#else 117#define IPOIB_OP_CM (0) 118#endif 119 120#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF)) 121 122/* structs */ 123 124struct ipoib_header { 125 __be16 proto; 126 u16 reserved; 127}; 128 129struct ipoib_cb { 130 struct qdisc_skb_cb qdisc_cb; 131 u8 hwaddr[INFINIBAND_ALEN]; 132}; 133 134static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb) 135{ 136 BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb)); 137 return (struct ipoib_cb *)skb->cb; 138} 139 140/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 141struct ipoib_mcast { 142 struct ib_sa_mcmember_rec mcmember; 143 struct ib_sa_multicast *mc; 144 struct ipoib_ah *ah; 145 146 struct rb_node rb_node; 147 struct list_head list; 148 149 unsigned long created; 150 unsigned long backoff; 151 152 unsigned long flags; 153 unsigned char logcount; 154 155 struct list_head neigh_list; 156 157 struct sk_buff_head pkt_queue; 158 159 struct net_device *dev; 160 struct completion done; 161}; 162 163struct ipoib_rx_buf { 164 struct sk_buff *skb; 165 u64 mapping[IPOIB_UD_RX_SG]; 166}; 167 168struct ipoib_tx_buf { 169 struct sk_buff *skb; 170 u64 mapping[MAX_SKB_FRAGS + 1]; 171}; 172 173struct ipoib_cm_tx_buf { 174 struct sk_buff *skb; 175 u64 mapping; 176}; 177 178struct ib_cm_id; 179 180struct ipoib_cm_data { 181 __be32 qpn; /* High byte MUST be ignored on receive */ 182 __be32 mtu; 183}; 184 185/* 186 * Quoting 10.3.1 Queue Pair and EE Context States: 187 * 188 * Note, for QPs that are associated with an SRQ, the Consumer should take the 189 * QP through the Error State before invoking a Destroy QP or a Modify QP to the 190 * Reset State. The Consumer may invoke the Destroy QP without first performing 191 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 192 * Last WQE Reached Event. However, if the Consumer does not wait for the 193 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 194 * leakage may occur. Therefore, it is good programming practice to tear down a 195 * QP that is associated with an SRQ by using the following process: 196 * 197 * - Put the QP in the Error State 198 * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 199 * - either: 200 * drain the CQ by invoking the Poll CQ verb and either wait for CQ 201 * to be empty or the number of Poll CQ operations has exceeded 202 * CQ capacity size; 203 * - or 204 * post another WR that completes on the same CQ and wait for this 205 * WR to return as a WC; 206 * - and then invoke a Destroy QP or Reset QP. 207 * 208 * We use the second option and wait for a completion on the 209 * same CQ before destroying QPs attached to our SRQ. 210 */ 211 212enum ipoib_cm_state { 213 IPOIB_CM_RX_LIVE, 214 IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 215 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 216}; 217 218struct ipoib_cm_rx { 219 struct ib_cm_id *id; 220 struct ib_qp *qp; 221 struct ipoib_cm_rx_buf *rx_ring; 222 struct list_head list; 223 struct net_device *dev; 224 unsigned long jiffies; 225 enum ipoib_cm_state state; 226 int recv_count; 227}; 228 229struct ipoib_cm_tx { 230 struct ib_cm_id *id; 231 struct ib_qp *qp; 232 struct list_head list; 233 struct net_device *dev; 234 struct ipoib_neigh *neigh; 235 struct ipoib_path *path; 236 struct ipoib_cm_tx_buf *tx_ring; 237 unsigned tx_head; 238 unsigned tx_tail; 239 unsigned long flags; 240 u32 mtu; 241}; 242 243struct ipoib_cm_rx_buf { 244 struct sk_buff *skb; 245 u64 mapping[IPOIB_CM_RX_SG]; 246}; 247 248struct ipoib_cm_dev_priv { 249 struct ib_srq *srq; 250 struct ipoib_cm_rx_buf *srq_ring; 251 struct ib_cm_id *id; 252 struct list_head passive_ids; /* state: LIVE */ 253 struct list_head rx_error_list; /* state: ERROR */ 254 struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 255 struct list_head rx_drain_list; /* state: FLUSH, drain started */ 256 struct list_head rx_reap_list; /* state: FLUSH, drain done */ 257 struct work_struct start_task; 258 struct work_struct reap_task; 259 struct work_struct skb_task; 260 struct work_struct rx_reap_task; 261 struct delayed_work stale_task; 262 struct sk_buff_head skb_queue; 263 struct list_head start_list; 264 struct list_head reap_list; 265 struct ib_wc ibwc[IPOIB_NUM_WC]; 266 struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 267 struct ib_recv_wr rx_wr; 268 int nonsrq_conn_qp; 269 int max_cm_mtu; 270 int num_frags; 271}; 272 273struct ipoib_ethtool_st { 274 u16 coalesce_usecs; 275 u16 max_coalesced_frames; 276}; 277 278struct ipoib_neigh_table; 279 280struct ipoib_neigh_hash { 281 struct ipoib_neigh_table *ntbl; 282 struct ipoib_neigh __rcu **buckets; 283 struct rcu_head rcu; 284 u32 mask; 285 u32 size; 286}; 287 288struct ipoib_neigh_table { 289 struct ipoib_neigh_hash __rcu *htbl; 290 atomic_t entries; 291 struct completion flushed; 292 struct completion deleted; 293}; 294 295/* 296 * Device private locking: network stack tx_lock protects members used 297 * in TX fast path, lock protects everything else. lock nests inside 298 * of tx_lock (ie tx_lock must be acquired first if needed). 299 */ 300struct ipoib_dev_priv { 301 spinlock_t lock; 302 303 struct net_device *dev; 304 305 struct napi_struct napi; 306 307 unsigned long flags; 308 309 struct rw_semaphore vlan_rwsem; 310 311 struct rb_root path_tree; 312 struct list_head path_list; 313 314 struct ipoib_neigh_table ntbl; 315 316 struct ipoib_mcast *broadcast; 317 struct list_head multicast_list; 318 struct rb_root multicast_tree; 319 320 struct delayed_work mcast_task; 321 struct work_struct carrier_on_task; 322 struct work_struct flush_light; 323 struct work_struct flush_normal; 324 struct work_struct flush_heavy; 325 struct work_struct restart_task; 326 struct delayed_work ah_reap_task; 327 struct delayed_work neigh_reap_task; 328 struct ib_device *ca; 329 u8 port; 330 u16 pkey; 331 u16 pkey_index; 332 struct ib_pd *pd; 333 struct ib_mr *mr; 334 struct ib_cq *recv_cq; 335 struct ib_cq *send_cq; 336 struct ib_qp *qp; 337 u32 qkey; 338 339 union ib_gid local_gid; 340 u16 local_lid; 341 342 unsigned int admin_mtu; 343 unsigned int mcast_mtu; 344 unsigned int max_ib_mtu; 345 346 struct ipoib_rx_buf *rx_ring; 347 348 struct ipoib_tx_buf *tx_ring; 349 unsigned tx_head; 350 unsigned tx_tail; 351 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 352 struct ib_send_wr tx_wr; 353 unsigned tx_outstanding; 354 struct ib_wc send_wc[MAX_SEND_CQE]; 355 356 struct ib_recv_wr rx_wr; 357 struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 358 359 struct ib_wc ibwc[IPOIB_NUM_WC]; 360 361 struct list_head dead_ahs; 362 363 struct ib_event_handler event_handler; 364 365 struct net_device *parent; 366 struct list_head child_intfs; 367 struct list_head list; 368 int child_type; 369 370#ifdef CONFIG_INFINIBAND_IPOIB_CM 371 struct ipoib_cm_dev_priv cm; 372#endif 373 374#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 375 struct list_head fs_list; 376 struct dentry *mcg_dentry; 377 struct dentry *path_dentry; 378#endif 379 int hca_caps; 380 struct ipoib_ethtool_st ethtool; 381 struct timer_list poll_timer; 382}; 383 384struct ipoib_ah { 385 struct net_device *dev; 386 struct ib_ah *ah; 387 struct list_head list; 388 struct kref ref; 389 unsigned last_send; 390}; 391 392struct ipoib_path { 393 struct net_device *dev; 394 struct ib_sa_path_rec pathrec; 395 struct ipoib_ah *ah; 396 struct sk_buff_head queue; 397 398 struct list_head neigh_list; 399 400 int query_id; 401 struct ib_sa_query *query; 402 struct completion done; 403 404 struct rb_node rb_node; 405 struct list_head list; 406 int valid; 407}; 408 409struct ipoib_neigh { 410 struct ipoib_ah *ah; 411#ifdef CONFIG_INFINIBAND_IPOIB_CM 412 struct ipoib_cm_tx *cm; 413#endif 414 u8 daddr[INFINIBAND_ALEN]; 415 struct sk_buff_head queue; 416 417 struct net_device *dev; 418 419 struct list_head list; 420 struct ipoib_neigh __rcu *hnext; 421 struct rcu_head rcu; 422 atomic_t refcnt; 423 unsigned long alive; 424}; 425 426#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 427#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) 428 429static inline int ipoib_ud_need_sg(unsigned int ib_mtu) 430{ 431 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; 432} 433 434void ipoib_neigh_dtor(struct ipoib_neigh *neigh); 435static inline void ipoib_neigh_put(struct ipoib_neigh *neigh) 436{ 437 if (atomic_dec_and_test(&neigh->refcnt)) 438 ipoib_neigh_dtor(neigh); 439} 440struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr); 441struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, 442 struct net_device *dev); 443void ipoib_neigh_free(struct ipoib_neigh *neigh); 444void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid); 445 446extern struct workqueue_struct *ipoib_workqueue; 447 448/* functions */ 449 450int ipoib_poll(struct napi_struct *napi, int budget); 451void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 452void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 453 454struct ipoib_ah *ipoib_create_ah(struct net_device *dev, 455 struct ib_pd *pd, struct ib_ah_attr *attr); 456void ipoib_free_ah(struct kref *kref); 457static inline void ipoib_put_ah(struct ipoib_ah *ah) 458{ 459 kref_put(&ah->ref, ipoib_free_ah); 460} 461int ipoib_open(struct net_device *dev); 462int ipoib_add_pkey_attr(struct net_device *dev); 463int ipoib_add_umcast_attr(struct net_device *dev); 464 465void ipoib_send(struct net_device *dev, struct sk_buff *skb, 466 struct ipoib_ah *address, u32 qpn); 467void ipoib_reap_ah(struct work_struct *work); 468 469void ipoib_mark_paths_invalid(struct net_device *dev); 470void ipoib_flush_paths(struct net_device *dev); 471struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); 472 473int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 474void ipoib_ib_dev_flush_light(struct work_struct *work); 475void ipoib_ib_dev_flush_normal(struct work_struct *work); 476void ipoib_ib_dev_flush_heavy(struct work_struct *work); 477void ipoib_pkey_event(struct work_struct *work); 478void ipoib_ib_dev_cleanup(struct net_device *dev); 479 480int ipoib_ib_dev_open(struct net_device *dev, int flush); 481int ipoib_ib_dev_up(struct net_device *dev); 482int ipoib_ib_dev_down(struct net_device *dev, int flush); 483int ipoib_ib_dev_stop(struct net_device *dev, int flush); 484void ipoib_pkey_dev_check_presence(struct net_device *dev); 485 486int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 487void ipoib_dev_cleanup(struct net_device *dev); 488 489void ipoib_mcast_join_task(struct work_struct *work); 490void ipoib_mcast_carrier_on_task(struct work_struct *work); 491void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); 492 493void ipoib_mcast_restart_task(struct work_struct *work); 494int ipoib_mcast_start_thread(struct net_device *dev); 495int ipoib_mcast_stop_thread(struct net_device *dev, int flush); 496 497void ipoib_mcast_dev_down(struct net_device *dev); 498void ipoib_mcast_dev_flush(struct net_device *dev); 499 500#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 501struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 502int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 503void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 504 union ib_gid *gid, 505 unsigned long *created, 506 unsigned int *queuelen, 507 unsigned int *complete, 508 unsigned int *send_only); 509 510struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); 511int ipoib_path_iter_next(struct ipoib_path_iter *iter); 512void ipoib_path_iter_read(struct ipoib_path_iter *iter, 513 struct ipoib_path *path); 514#endif 515 516int ipoib_mcast_attach(struct net_device *dev, u16 mlid, 517 union ib_gid *mgid, int set_qkey); 518 519int ipoib_init_qp(struct net_device *dev); 520int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); 521void ipoib_transport_dev_cleanup(struct net_device *dev); 522 523void ipoib_event(struct ib_event_handler *handler, 524 struct ib_event *record); 525 526int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); 527int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); 528 529int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, 530 u16 pkey, int child_type); 531 532int __init ipoib_netlink_init(void); 533void __exit ipoib_netlink_fini(void); 534 535void ipoib_set_umcast(struct net_device *ndev, int umcast_val); 536int ipoib_set_mode(struct net_device *dev, const char *buf); 537 538void ipoib_setup(struct net_device *dev); 539 540void ipoib_pkey_open(struct ipoib_dev_priv *priv); 541void ipoib_drain_cq(struct net_device *dev); 542 543void ipoib_set_ethtool_ops(struct net_device *dev); 544int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 545 546#define IPOIB_FLAGS_RC 0x80 547#define IPOIB_FLAGS_UC 0x40 548 549/* We don't support UC connections at the moment */ 550#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 551 552#ifdef CONFIG_INFINIBAND_IPOIB_CM 553 554extern int ipoib_max_conn_qp; 555 556static inline int ipoib_cm_admin_enabled(struct net_device *dev) 557{ 558 struct ipoib_dev_priv *priv = netdev_priv(dev); 559 return IPOIB_CM_SUPPORTED(dev->dev_addr) && 560 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 561} 562 563static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) 564{ 565 struct ipoib_dev_priv *priv = netdev_priv(dev); 566 return IPOIB_CM_SUPPORTED(hwaddr) && 567 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 568} 569 570static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 571 572{ 573 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); 574} 575 576static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 577{ 578 return neigh->cm; 579} 580 581static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 582{ 583 neigh->cm = tx; 584} 585 586static inline int ipoib_cm_has_srq(struct net_device *dev) 587{ 588 struct ipoib_dev_priv *priv = netdev_priv(dev); 589 return !!priv->cm.srq; 590} 591 592static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 593{ 594 struct ipoib_dev_priv *priv = netdev_priv(dev); 595 return priv->cm.max_cm_mtu; 596} 597 598void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); 599int ipoib_cm_dev_open(struct net_device *dev); 600void ipoib_cm_dev_stop(struct net_device *dev); 601int ipoib_cm_dev_init(struct net_device *dev); 602int ipoib_cm_add_mode_attr(struct net_device *dev); 603void ipoib_cm_dev_cleanup(struct net_device *dev); 604struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 605 struct ipoib_neigh *neigh); 606void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 607void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 608 unsigned int mtu); 609void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 610void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 611#else 612 613struct ipoib_cm_tx; 614 615#define ipoib_max_conn_qp 0 616 617static inline int ipoib_cm_admin_enabled(struct net_device *dev) 618{ 619 return 0; 620} 621static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) 622 623{ 624 return 0; 625} 626 627static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 628 629{ 630 return 0; 631} 632 633static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 634{ 635 return NULL; 636} 637 638static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 639{ 640} 641 642static inline int ipoib_cm_has_srq(struct net_device *dev) 643{ 644 return 0; 645} 646 647static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 648{ 649 return 0; 650} 651 652static inline 653void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) 654{ 655 return; 656} 657 658static inline 659int ipoib_cm_dev_open(struct net_device *dev) 660{ 661 return 0; 662} 663 664static inline 665void ipoib_cm_dev_stop(struct net_device *dev) 666{ 667 return; 668} 669 670static inline 671int ipoib_cm_dev_init(struct net_device *dev) 672{ 673 return -ENOSYS; 674} 675 676static inline 677void ipoib_cm_dev_cleanup(struct net_device *dev) 678{ 679 return; 680} 681 682static inline 683struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 684 struct ipoib_neigh *neigh) 685{ 686 return NULL; 687} 688 689static inline 690void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 691{ 692 return; 693} 694 695static inline 696int ipoib_cm_add_mode_attr(struct net_device *dev) 697{ 698 return 0; 699} 700 701static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 702 unsigned int mtu) 703{ 704 dev_kfree_skb_any(skb); 705} 706 707static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 708{ 709} 710 711static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 712{ 713} 714#endif 715 716#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 717void ipoib_create_debug_files(struct net_device *dev); 718void ipoib_delete_debug_files(struct net_device *dev); 719int ipoib_register_debugfs(void); 720void ipoib_unregister_debugfs(void); 721#else 722static inline void ipoib_create_debug_files(struct net_device *dev) { } 723static inline void ipoib_delete_debug_files(struct net_device *dev) { } 724static inline int ipoib_register_debugfs(void) { return 0; } 725static inline void ipoib_unregister_debugfs(void) { } 726#endif 727 728#define ipoib_printk(level, priv, format, arg...) \ 729 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) 730#define ipoib_warn(priv, format, arg...) \ 731 ipoib_printk(KERN_WARNING, priv, format , ## arg) 732 733extern int ipoib_sendq_size; 734extern int ipoib_recvq_size; 735 736extern struct ib_sa_client ipoib_sa_client; 737 738#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 739extern int ipoib_debug_level; 740 741#define ipoib_dbg(priv, format, arg...) \ 742 do { \ 743 if (ipoib_debug_level > 0) \ 744 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 745 } while (0) 746#define ipoib_dbg_mcast(priv, format, arg...) \ 747 do { \ 748 if (mcast_debug_level > 0) \ 749 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 750 } while (0) 751#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 752#define ipoib_dbg(priv, format, arg...) \ 753 do { (void) (priv); } while (0) 754#define ipoib_dbg_mcast(priv, format, arg...) \ 755 do { (void) (priv); } while (0) 756#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 757 758#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 759#define ipoib_dbg_data(priv, format, arg...) \ 760 do { \ 761 if (data_debug_level > 0) \ 762 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 763 } while (0) 764#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 765#define ipoib_dbg_data(priv, format, arg...) \ 766 do { (void) (priv); } while (0) 767#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 768 769#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 770 771extern const char ipoib_driver_version[]; 772 773#endif /* _IPOIB_H */ 774