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 58 enum ipoib_flush_level { 59 IPOIB_FLUSH_LIGHT, 60 IPOIB_FLUSH_NORMAL, 61 IPOIB_FLUSH_HEAVY 62 }; 63 64 enum { 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_PKEY_STOP = 4, 90 IPOIB_FLAG_SUBINTERFACE = 5, 91 IPOIB_MCAST_RUN = 6, 92 IPOIB_STOP_REAPER = 7, 93 IPOIB_FLAG_ADMIN_CM = 9, 94 IPOIB_FLAG_UMCAST = 10, 95 96 IPOIB_MAX_BACKOFF_SECONDS = 16, 97 98 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ 99 IPOIB_MCAST_FLAG_SENDONLY = 1, 100 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ 101 IPOIB_MCAST_FLAG_ATTACHED = 3, 102 103 MAX_SEND_CQE = 16, 104 IPOIB_CM_COPYBREAK = 256, 105 }; 106 107 #define IPOIB_OP_RECV (1ul << 31) 108 #ifdef CONFIG_INFINIBAND_IPOIB_CM 109 #define IPOIB_OP_CM (1ul << 30) 110 #else 111 #define IPOIB_OP_CM (0) 112 #endif 113 114 /* structs */ 115 116 struct ipoib_header { 117 __be16 proto; 118 u16 reserved; 119 }; 120 121 struct ipoib_cb { 122 struct qdisc_skb_cb qdisc_cb; 123 u8 hwaddr[INFINIBAND_ALEN]; 124 }; 125 126 /* 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; 130 struct ipoib_ah *ah; 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 }; 147 148 struct ipoib_rx_buf { 149 struct sk_buff *skb; 150 u64 mapping[IPOIB_UD_RX_SG]; 151 }; 152 153 struct ipoib_tx_buf { 154 struct sk_buff *skb; 155 u64 mapping[MAX_SKB_FRAGS + 1]; 156 }; 157 158 struct ipoib_cm_tx_buf { 159 struct sk_buff *skb; 160 u64 mapping; 161 }; 162 163 struct ib_cm_id; 164 165 struct ipoib_cm_data { 166 __be32 qpn; /* High byte MUST be ignored on receive */ 167 __be32 mtu; 168 }; 169 170 /* 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 194 * same CQ before destroying QPs attached to our SRQ. 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 }; 202 203 struct ipoib_cm_rx { 204 struct ib_cm_id *id; 205 struct ib_qp *qp; 206 struct ipoib_cm_rx_buf *rx_ring; 207 struct list_head list; 208 struct net_device *dev; 209 unsigned long jiffies; 210 enum ipoib_cm_state state; 211 int recv_count; 212 }; 213 214 struct ipoib_cm_tx { 215 struct ib_cm_id *id; 216 struct ib_qp *qp; 217 struct list_head list; 218 struct net_device *dev; 219 struct ipoib_neigh *neigh; 220 struct ipoib_path *path; 221 struct ipoib_cm_tx_buf *tx_ring; 222 unsigned tx_head; 223 unsigned tx_tail; 224 unsigned long flags; 225 u32 mtu; 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 { 234 struct ib_srq *srq; 235 struct ipoib_cm_rx_buf *srq_ring; 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 */ 242 struct work_struct start_task; 243 struct work_struct reap_task; 244 struct work_struct skb_task; 245 struct work_struct rx_reap_task; 246 struct delayed_work stale_task; 247 struct sk_buff_head skb_queue; 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]; 252 struct ib_recv_wr rx_wr; 253 int nonsrq_conn_qp; 254 int max_cm_mtu; 255 int num_frags; 256 }; 257 258 struct ipoib_ethtool_st { 259 u16 coalesce_usecs; 260 u16 max_coalesced_frames; 261 }; 262 263 /* 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). 267 */ 268 struct ipoib_dev_priv { 269 spinlock_t lock; 270 271 struct net_device *dev; 272 273 struct napi_struct napi; 274 275 unsigned long flags; 276 277 struct mutex vlan_mutex; 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; 285 286 struct delayed_work pkey_poll_task; 287 struct delayed_work mcast_task; 288 struct work_struct carrier_on_task; 289 struct work_struct flush_light; 290 struct work_struct flush_normal; 291 struct work_struct flush_heavy; 292 struct work_struct restart_task; 293 struct delayed_work ah_reap_task; 294 295 struct ib_device *ca; 296 u8 port; 297 u16 pkey; 298 u16 pkey_index; 299 struct ib_pd *pd; 300 struct ib_mr *mr; 301 struct ib_cq *recv_cq; 302 struct ib_cq *send_cq; 303 struct ib_qp *qp; 304 u32 qkey; 305 306 union ib_gid local_gid; 307 u16 local_lid; 308 309 unsigned int admin_mtu; 310 unsigned int mcast_mtu; 311 unsigned int max_ib_mtu; 312 313 struct ipoib_rx_buf *rx_ring; 314 315 struct ipoib_tx_buf *tx_ring; 316 unsigned tx_head; 317 unsigned tx_tail; 318 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 319 struct ib_send_wr tx_wr; 320 unsigned tx_outstanding; 321 struct ib_wc send_wc[MAX_SEND_CQE]; 322 323 struct ib_recv_wr rx_wr; 324 struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 325 326 struct ib_wc ibwc[IPOIB_NUM_WC]; 327 328 struct list_head dead_ahs; 329 330 struct ib_event_handler event_handler; 331 332 struct net_device *parent; 333 struct list_head child_intfs; 334 struct list_head list; 335 336 #ifdef CONFIG_INFINIBAND_IPOIB_CM 337 struct ipoib_cm_dev_priv cm; 338 #endif 339 340 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 341 struct list_head fs_list; 342 struct dentry *mcg_dentry; 343 struct dentry *path_dentry; 344 #endif 345 int hca_caps; 346 struct ipoib_ethtool_st ethtool; 347 struct timer_list poll_timer; 348 }; 349 350 struct ipoib_ah { 351 struct net_device *dev; 352 struct ib_ah *ah; 353 struct list_head list; 354 struct kref ref; 355 unsigned last_send; 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; 365 366 int query_id; 367 struct ib_sa_query *query; 368 struct completion done; 369 370 struct rb_node rb_node; 371 struct list_head list; 372 int valid; 373 }; 374 375 struct ipoib_neigh { 376 struct ipoib_ah *ah; 377 #ifdef CONFIG_INFINIBAND_IPOIB_CM 378 struct ipoib_cm_tx *cm; 379 #endif 380 union ib_gid dgid; 381 struct sk_buff_head queue; 382 383 struct neighbour *neighbour; 384 struct net_device *dev; 385 386 struct list_head list; 387 }; 388 389 #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 } 396 397 /* 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 */ 403 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) 404 { 405 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + 406 INFINIBAND_ALEN, sizeof(void *)); 407 } 408 409 struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, 410 struct net_device *dev); 411 void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); 412 413 extern struct workqueue_struct *ipoib_workqueue; 414 415 /* functions */ 416 417 int ipoib_poll(struct napi_struct *napi, int budget); 418 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 419 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 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 } 428 429 int ipoib_open(struct net_device *dev); 430 int ipoib_add_pkey_attr(struct net_device *dev); 431 int ipoib_add_umcast_attr(struct net_device *dev); 432 433 void ipoib_send(struct net_device *dev, struct sk_buff *skb, 434 struct ipoib_ah *address, u32 qpn); 435 void ipoib_reap_ah(struct work_struct *work); 436 437 void ipoib_mark_paths_invalid(struct net_device *dev); 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); 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); 445 void ipoib_pkey_event(struct work_struct *work); 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); 450 int ipoib_ib_dev_down(struct net_device *dev, int flush); 451 int ipoib_ib_dev_stop(struct net_device *dev, int flush); 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); 455 456 void ipoib_mcast_join_task(struct work_struct *work); 457 void ipoib_mcast_carrier_on_task(struct work_struct *work); 458 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); 459 460 void ipoib_mcast_restart_task(struct work_struct *work); 461 int ipoib_mcast_start_thread(struct net_device *dev); 462 int ipoib_mcast_stop_thread(struct net_device *dev, int flush); 463 464 void ipoib_mcast_dev_down(struct net_device *dev); 465 void ipoib_mcast_dev_flush(struct net_device *dev); 466 467 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 468 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 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); 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); 481 #endif 482 483 int ipoib_mcast_attach(struct net_device *dev, u16 mlid, 484 union ib_gid *mgid, int set_qkey); 485 486 int ipoib_init_qp(struct net_device *dev); 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); 495 496 void ipoib_pkey_poll(struct work_struct *work); 497 int ipoib_pkey_dev_delay_open(struct net_device *dev); 498 void ipoib_drain_cq(struct net_device *dev); 499 500 void ipoib_set_ethtool_ops(struct net_device *dev); 501 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 502 503 #ifdef CONFIG_INFINIBAND_IPOIB_CM 504 505 #define IPOIB_FLAGS_RC 0x80 506 #define IPOIB_FLAGS_UC 0x40 507 508 /* We don't support UC connections at the moment */ 509 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 510 511 extern int ipoib_max_conn_qp; 512 513 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 } 542 543 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 } 548 549 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 } 554 555 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); 564 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 565 unsigned int mtu); 566 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 567 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 568 #else 569 570 struct ipoib_cm_tx; 571 572 #define ipoib_max_conn_qp 0 573 574 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 } 598 599 static inline int ipoib_cm_has_srq(struct net_device *dev) 600 { 601 return 0; 602 } 603 604 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 605 { 606 return 0; 607 } 608 609 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 } 657 658 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 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 } 667 668 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 669 { 670 } 671 #endif 672 673 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 674 void ipoib_create_debug_files(struct net_device *dev); 675 void ipoib_delete_debug_files(struct net_device *dev); 676 int ipoib_register_debugfs(void); 677 void ipoib_unregister_debugfs(void); 678 #else 679 static inline void ipoib_create_debug_files(struct net_device *dev) { } 680 static inline void ipoib_delete_debug_files(struct net_device *dev) { } 681 static inline int ipoib_register_debugfs(void) { return 0; } 682 static inline void ipoib_unregister_debugfs(void) { } 683 #endif 684 685 #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) 689 690 extern int ipoib_sendq_size; 691 extern int ipoib_recvq_size; 692 693 extern struct ib_sa_client ipoib_sa_client; 694 695 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 696 extern int ipoib_debug_level; 697 698 #define ipoib_dbg(priv, format, arg...) \ 699 do { \ 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...) \ 704 do { \ 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...) \ 717 do { \ 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 */ 725 726 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 727 728 #endif /* _IPOIB_H */ 729