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 48 #include <asm/atomic.h> 49 50 #include <rdma/ib_verbs.h> 51 #include <rdma/ib_pack.h> 52 #include <rdma/ib_sa.h> 53 #include <linux/sched.h> 54 55 /* constants */ 56 57 enum ipoib_flush_level { 58 IPOIB_FLUSH_LIGHT, 59 IPOIB_FLUSH_NORMAL, 60 IPOIB_FLUSH_HEAVY 61 }; 62 63 enum { 64 IPOIB_ENCAP_LEN = 4, 65 66 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, 67 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ 68 69 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ 70 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, 71 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, 72 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, 73 IPOIB_RX_RING_SIZE = 256, 74 IPOIB_TX_RING_SIZE = 128, 75 IPOIB_MAX_QUEUE_SIZE = 8192, 76 IPOIB_MIN_QUEUE_SIZE = 2, 77 IPOIB_CM_MAX_CONN_QP = 4096, 78 79 IPOIB_NUM_WC = 4, 80 81 IPOIB_MAX_PATH_REC_QUEUE = 3, 82 IPOIB_MAX_MCAST_QUEUE = 3, 83 84 IPOIB_FLAG_OPER_UP = 0, 85 IPOIB_FLAG_INITIALIZED = 1, 86 IPOIB_FLAG_ADMIN_UP = 2, 87 IPOIB_PKEY_ASSIGNED = 3, 88 IPOIB_PKEY_STOP = 4, 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_FLAG_CSUM = 11, 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_pseudoheader { 122 u8 hwaddr[INFINIBAND_ALEN]; 123 }; 124 125 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 126 struct ipoib_mcast { 127 struct ib_sa_mcmember_rec mcmember; 128 struct ib_sa_multicast *mc; 129 struct ipoib_ah *ah; 130 131 struct rb_node rb_node; 132 struct list_head list; 133 134 unsigned long created; 135 unsigned long backoff; 136 137 unsigned long flags; 138 unsigned char logcount; 139 140 struct list_head neigh_list; 141 142 struct sk_buff_head pkt_queue; 143 144 struct net_device *dev; 145 }; 146 147 struct ipoib_rx_buf { 148 struct sk_buff *skb; 149 u64 mapping[IPOIB_UD_RX_SG]; 150 }; 151 152 struct ipoib_tx_buf { 153 struct sk_buff *skb; 154 u64 mapping[MAX_SKB_FRAGS + 1]; 155 }; 156 157 struct ipoib_cm_tx_buf { 158 struct sk_buff *skb; 159 u64 mapping; 160 }; 161 162 struct ib_cm_id; 163 164 struct ipoib_cm_data { 165 __be32 qpn; /* High byte MUST be ignored on receive */ 166 __be32 mtu; 167 }; 168 169 /* 170 * Quoting 10.3.1 Queue Pair and EE Context States: 171 * 172 * Note, for QPs that are associated with an SRQ, the Consumer should take the 173 * QP through the Error State before invoking a Destroy QP or a Modify QP to the 174 * Reset State. The Consumer may invoke the Destroy QP without first performing 175 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 176 * Last WQE Reached Event. However, if the Consumer does not wait for the 177 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 178 * leakage may occur. Therefore, it is good programming practice to tear down a 179 * QP that is associated with an SRQ by using the following process: 180 * 181 * - Put the QP in the Error State 182 * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 183 * - either: 184 * drain the CQ by invoking the Poll CQ verb and either wait for CQ 185 * to be empty or the number of Poll CQ operations has exceeded 186 * CQ capacity size; 187 * - or 188 * post another WR that completes on the same CQ and wait for this 189 * WR to return as a WC; 190 * - and then invoke a Destroy QP or Reset QP. 191 * 192 * We use the second option and wait for a completion on the 193 * same CQ before destroying QPs attached to our SRQ. 194 */ 195 196 enum ipoib_cm_state { 197 IPOIB_CM_RX_LIVE, 198 IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 199 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 200 }; 201 202 struct ipoib_cm_rx { 203 struct ib_cm_id *id; 204 struct ib_qp *qp; 205 struct ipoib_cm_rx_buf *rx_ring; 206 struct list_head list; 207 struct net_device *dev; 208 unsigned long jiffies; 209 enum ipoib_cm_state state; 210 int recv_count; 211 }; 212 213 struct ipoib_cm_tx { 214 struct ib_cm_id *id; 215 struct ib_qp *qp; 216 struct list_head list; 217 struct net_device *dev; 218 struct ipoib_neigh *neigh; 219 struct ipoib_path *path; 220 struct ipoib_cm_tx_buf *tx_ring; 221 unsigned tx_head; 222 unsigned tx_tail; 223 unsigned long flags; 224 u32 mtu; 225 }; 226 227 struct ipoib_cm_rx_buf { 228 struct sk_buff *skb; 229 u64 mapping[IPOIB_CM_RX_SG]; 230 }; 231 232 struct ipoib_cm_dev_priv { 233 struct ib_srq *srq; 234 struct ipoib_cm_rx_buf *srq_ring; 235 struct ib_cm_id *id; 236 struct list_head passive_ids; /* state: LIVE */ 237 struct list_head rx_error_list; /* state: ERROR */ 238 struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 239 struct list_head rx_drain_list; /* state: FLUSH, drain started */ 240 struct list_head rx_reap_list; /* state: FLUSH, drain done */ 241 struct work_struct start_task; 242 struct work_struct reap_task; 243 struct work_struct skb_task; 244 struct work_struct rx_reap_task; 245 struct delayed_work stale_task; 246 struct sk_buff_head skb_queue; 247 struct list_head start_list; 248 struct list_head reap_list; 249 struct ib_wc ibwc[IPOIB_NUM_WC]; 250 struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 251 struct ib_recv_wr rx_wr; 252 int nonsrq_conn_qp; 253 int max_cm_mtu; 254 int num_frags; 255 }; 256 257 struct ipoib_ethtool_st { 258 u16 coalesce_usecs; 259 u16 max_coalesced_frames; 260 }; 261 262 /* 263 * Device private locking: network stack tx_lock protects members used 264 * in TX fast path, lock protects everything else. lock nests inside 265 * of tx_lock (ie tx_lock must be acquired first if needed). 266 */ 267 struct ipoib_dev_priv { 268 spinlock_t lock; 269 270 struct net_device *dev; 271 272 struct napi_struct napi; 273 274 unsigned long flags; 275 276 struct mutex vlan_mutex; 277 278 struct rb_root path_tree; 279 struct list_head path_list; 280 281 struct ipoib_mcast *broadcast; 282 struct list_head multicast_list; 283 struct rb_root multicast_tree; 284 285 struct delayed_work pkey_poll_task; 286 struct delayed_work mcast_task; 287 struct work_struct carrier_on_task; 288 struct work_struct flush_light; 289 struct work_struct flush_normal; 290 struct work_struct flush_heavy; 291 struct work_struct restart_task; 292 struct delayed_work ah_reap_task; 293 294 struct ib_device *ca; 295 u8 port; 296 u16 pkey; 297 u16 pkey_index; 298 struct ib_pd *pd; 299 struct ib_mr *mr; 300 struct ib_cq *recv_cq; 301 struct ib_cq *send_cq; 302 struct ib_qp *qp; 303 u32 qkey; 304 305 union ib_gid local_gid; 306 u16 local_lid; 307 308 unsigned int admin_mtu; 309 unsigned int mcast_mtu; 310 unsigned int max_ib_mtu; 311 312 struct ipoib_rx_buf *rx_ring; 313 314 struct ipoib_tx_buf *tx_ring; 315 unsigned tx_head; 316 unsigned tx_tail; 317 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 318 struct ib_send_wr tx_wr; 319 unsigned tx_outstanding; 320 struct ib_wc send_wc[MAX_SEND_CQE]; 321 322 struct ib_recv_wr rx_wr; 323 struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 324 325 struct ib_wc ibwc[IPOIB_NUM_WC]; 326 327 struct list_head dead_ahs; 328 329 struct ib_event_handler event_handler; 330 331 struct net_device *parent; 332 struct list_head child_intfs; 333 struct list_head list; 334 335 #ifdef CONFIG_INFINIBAND_IPOIB_CM 336 struct ipoib_cm_dev_priv cm; 337 #endif 338 339 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 340 struct list_head fs_list; 341 struct dentry *mcg_dentry; 342 struct dentry *path_dentry; 343 #endif 344 int hca_caps; 345 struct ipoib_ethtool_st ethtool; 346 struct timer_list poll_timer; 347 }; 348 349 struct ipoib_ah { 350 struct net_device *dev; 351 struct ib_ah *ah; 352 struct list_head list; 353 struct kref ref; 354 unsigned last_send; 355 }; 356 357 struct ipoib_path { 358 struct net_device *dev; 359 struct ib_sa_path_rec pathrec; 360 struct ipoib_ah *ah; 361 struct sk_buff_head queue; 362 363 struct list_head neigh_list; 364 365 int query_id; 366 struct ib_sa_query *query; 367 struct completion done; 368 369 struct rb_node rb_node; 370 struct list_head list; 371 int valid; 372 }; 373 374 struct ipoib_neigh { 375 struct ipoib_ah *ah; 376 #ifdef CONFIG_INFINIBAND_IPOIB_CM 377 struct ipoib_cm_tx *cm; 378 #endif 379 union ib_gid dgid; 380 struct sk_buff_head queue; 381 382 struct neighbour *neighbour; 383 struct net_device *dev; 384 385 struct list_head list; 386 }; 387 388 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 389 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) 390 391 static inline int ipoib_ud_need_sg(unsigned int ib_mtu) 392 { 393 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; 394 } 395 396 /* 397 * We stash a pointer to our private neighbour information after our 398 * hardware address in neigh->ha. The ALIGN() expression here makes 399 * sure that this pointer is stored aligned so that an unaligned 400 * load is not needed to dereference it. 401 */ 402 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) 403 { 404 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + 405 INFINIBAND_ALEN, sizeof(void *)); 406 } 407 408 struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, 409 struct net_device *dev); 410 void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); 411 412 extern struct workqueue_struct *ipoib_workqueue; 413 414 /* functions */ 415 416 int ipoib_poll(struct napi_struct *napi, int budget); 417 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 418 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 419 420 struct ipoib_ah *ipoib_create_ah(struct net_device *dev, 421 struct ib_pd *pd, struct ib_ah_attr *attr); 422 void ipoib_free_ah(struct kref *kref); 423 static inline void ipoib_put_ah(struct ipoib_ah *ah) 424 { 425 kref_put(&ah->ref, ipoib_free_ah); 426 } 427 428 int ipoib_open(struct net_device *dev); 429 int ipoib_add_pkey_attr(struct net_device *dev); 430 int ipoib_add_umcast_attr(struct net_device *dev); 431 432 void ipoib_send(struct net_device *dev, struct sk_buff *skb, 433 struct ipoib_ah *address, u32 qpn); 434 void ipoib_reap_ah(struct work_struct *work); 435 436 void ipoib_mark_paths_invalid(struct net_device *dev); 437 void ipoib_flush_paths(struct net_device *dev); 438 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); 439 440 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 441 void ipoib_ib_dev_flush_light(struct work_struct *work); 442 void ipoib_ib_dev_flush_normal(struct work_struct *work); 443 void ipoib_ib_dev_flush_heavy(struct work_struct *work); 444 void ipoib_pkey_event(struct work_struct *work); 445 void ipoib_ib_dev_cleanup(struct net_device *dev); 446 447 int ipoib_ib_dev_open(struct net_device *dev); 448 int ipoib_ib_dev_up(struct net_device *dev); 449 int ipoib_ib_dev_down(struct net_device *dev, int flush); 450 int ipoib_ib_dev_stop(struct net_device *dev, int flush); 451 452 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 453 void ipoib_dev_cleanup(struct net_device *dev); 454 455 void ipoib_mcast_join_task(struct work_struct *work); 456 void ipoib_mcast_carrier_on_task(struct work_struct *work); 457 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); 458 459 void ipoib_mcast_restart_task(struct work_struct *work); 460 int ipoib_mcast_start_thread(struct net_device *dev); 461 int ipoib_mcast_stop_thread(struct net_device *dev, int flush); 462 463 void ipoib_mcast_dev_down(struct net_device *dev); 464 void ipoib_mcast_dev_flush(struct net_device *dev); 465 466 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 467 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 468 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 469 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 470 union ib_gid *gid, 471 unsigned long *created, 472 unsigned int *queuelen, 473 unsigned int *complete, 474 unsigned int *send_only); 475 476 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); 477 int ipoib_path_iter_next(struct ipoib_path_iter *iter); 478 void ipoib_path_iter_read(struct ipoib_path_iter *iter, 479 struct ipoib_path *path); 480 #endif 481 482 int ipoib_mcast_attach(struct net_device *dev, u16 mlid, 483 union ib_gid *mgid, int set_qkey); 484 485 int ipoib_init_qp(struct net_device *dev); 486 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); 487 void ipoib_transport_dev_cleanup(struct net_device *dev); 488 489 void ipoib_event(struct ib_event_handler *handler, 490 struct ib_event *record); 491 492 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); 493 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); 494 495 void ipoib_pkey_poll(struct work_struct *work); 496 int ipoib_pkey_dev_delay_open(struct net_device *dev); 497 void ipoib_drain_cq(struct net_device *dev); 498 499 void ipoib_set_ethtool_ops(struct net_device *dev); 500 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 501 502 #ifdef CONFIG_INFINIBAND_IPOIB_CM 503 504 #define IPOIB_FLAGS_RC 0x80 505 #define IPOIB_FLAGS_UC 0x40 506 507 /* We don't support UC connections at the moment */ 508 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 509 510 extern int ipoib_max_conn_qp; 511 512 static inline int ipoib_cm_admin_enabled(struct net_device *dev) 513 { 514 struct ipoib_dev_priv *priv = netdev_priv(dev); 515 return IPOIB_CM_SUPPORTED(dev->dev_addr) && 516 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 517 } 518 519 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) 520 { 521 struct ipoib_dev_priv *priv = netdev_priv(dev); 522 return IPOIB_CM_SUPPORTED(n->ha) && 523 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 524 } 525 526 static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 527 528 { 529 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); 530 } 531 532 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 533 { 534 return neigh->cm; 535 } 536 537 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 538 { 539 neigh->cm = tx; 540 } 541 542 static inline int ipoib_cm_has_srq(struct net_device *dev) 543 { 544 struct ipoib_dev_priv *priv = netdev_priv(dev); 545 return !!priv->cm.srq; 546 } 547 548 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 549 { 550 struct ipoib_dev_priv *priv = netdev_priv(dev); 551 return priv->cm.max_cm_mtu; 552 } 553 554 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); 555 int ipoib_cm_dev_open(struct net_device *dev); 556 void ipoib_cm_dev_stop(struct net_device *dev); 557 int ipoib_cm_dev_init(struct net_device *dev); 558 int ipoib_cm_add_mode_attr(struct net_device *dev); 559 void ipoib_cm_dev_cleanup(struct net_device *dev); 560 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 561 struct ipoib_neigh *neigh); 562 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 563 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 564 unsigned int mtu); 565 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 566 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 567 #else 568 569 struct ipoib_cm_tx; 570 571 #define ipoib_max_conn_qp 0 572 573 static inline int ipoib_cm_admin_enabled(struct net_device *dev) 574 { 575 return 0; 576 } 577 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) 578 579 { 580 return 0; 581 } 582 583 static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 584 585 { 586 return 0; 587 } 588 589 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 590 { 591 return NULL; 592 } 593 594 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 595 { 596 } 597 598 static inline int ipoib_cm_has_srq(struct net_device *dev) 599 { 600 return 0; 601 } 602 603 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 604 { 605 return 0; 606 } 607 608 static inline 609 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) 610 { 611 return; 612 } 613 614 static inline 615 int ipoib_cm_dev_open(struct net_device *dev) 616 { 617 return 0; 618 } 619 620 static inline 621 void ipoib_cm_dev_stop(struct net_device *dev) 622 { 623 return; 624 } 625 626 static inline 627 int ipoib_cm_dev_init(struct net_device *dev) 628 { 629 return -ENOSYS; 630 } 631 632 static inline 633 void ipoib_cm_dev_cleanup(struct net_device *dev) 634 { 635 return; 636 } 637 638 static inline 639 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 640 struct ipoib_neigh *neigh) 641 { 642 return NULL; 643 } 644 645 static inline 646 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 647 { 648 return; 649 } 650 651 static inline 652 int ipoib_cm_add_mode_attr(struct net_device *dev) 653 { 654 return 0; 655 } 656 657 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 658 unsigned int mtu) 659 { 660 dev_kfree_skb_any(skb); 661 } 662 663 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 664 { 665 } 666 667 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 668 { 669 } 670 #endif 671 672 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 673 void ipoib_create_debug_files(struct net_device *dev); 674 void ipoib_delete_debug_files(struct net_device *dev); 675 int ipoib_register_debugfs(void); 676 void ipoib_unregister_debugfs(void); 677 #else 678 static inline void ipoib_create_debug_files(struct net_device *dev) { } 679 static inline void ipoib_delete_debug_files(struct net_device *dev) { } 680 static inline int ipoib_register_debugfs(void) { return 0; } 681 static inline void ipoib_unregister_debugfs(void) { } 682 #endif 683 684 #define ipoib_printk(level, priv, format, arg...) \ 685 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) 686 #define ipoib_warn(priv, format, arg...) \ 687 ipoib_printk(KERN_WARNING, priv, format , ## arg) 688 689 extern int ipoib_sendq_size; 690 extern int ipoib_recvq_size; 691 692 extern struct ib_sa_client ipoib_sa_client; 693 694 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 695 extern int ipoib_debug_level; 696 697 #define ipoib_dbg(priv, format, arg...) \ 698 do { \ 699 if (ipoib_debug_level > 0) \ 700 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 701 } while (0) 702 #define ipoib_dbg_mcast(priv, format, arg...) \ 703 do { \ 704 if (mcast_debug_level > 0) \ 705 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 706 } while (0) 707 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 708 #define ipoib_dbg(priv, format, arg...) \ 709 do { (void) (priv); } while (0) 710 #define ipoib_dbg_mcast(priv, format, arg...) \ 711 do { (void) (priv); } while (0) 712 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 713 714 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 715 #define ipoib_dbg_data(priv, format, arg...) \ 716 do { \ 717 if (data_debug_level > 0) \ 718 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 719 } while (0) 720 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 721 #define ipoib_dbg_data(priv, format, arg...) \ 722 do { (void) (priv); } while (0) 723 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 724 725 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 726 727 #endif /* _IPOIB_H */ 728