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/inet_lro.h> 54 55/* constants */ 56 57enum ipoib_flush_level { 58 IPOIB_FLUSH_LIGHT, 59 IPOIB_FLUSH_NORMAL, 60 IPOIB_FLUSH_HEAVY 61}; 62 63enum { 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 IPOIB_MAX_LRO_DESCRIPTORS = 8, 104 IPOIB_LRO_MAX_AGGR = 64, 105 106 MAX_SEND_CQE = 16, 107 IPOIB_CM_COPYBREAK = 256, 108}; 109 110#define IPOIB_OP_RECV (1ul << 31) 111#ifdef CONFIG_INFINIBAND_IPOIB_CM 112#define IPOIB_OP_CM (1ul << 30) 113#else 114#define IPOIB_OP_CM (0) 115#endif 116 117/* structs */ 118 119struct ipoib_header { 120 __be16 proto; 121 u16 reserved; 122}; 123 124struct ipoib_pseudoheader { 125 u8 hwaddr[INFINIBAND_ALEN]; 126}; 127 128/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 129struct ipoib_mcast { 130 struct ib_sa_mcmember_rec mcmember; 131 struct ib_sa_multicast *mc; 132 struct ipoib_ah *ah; 133 134 struct rb_node rb_node; 135 struct list_head list; 136 137 unsigned long created; 138 unsigned long backoff; 139 140 unsigned long flags; 141 unsigned char logcount; 142 143 struct list_head neigh_list; 144 145 struct sk_buff_head pkt_queue; 146 147 struct net_device *dev; 148}; 149 150struct ipoib_rx_buf { 151 struct sk_buff *skb; 152 u64 mapping[IPOIB_UD_RX_SG]; 153}; 154 155struct ipoib_tx_buf { 156 struct sk_buff *skb; 157 u64 mapping[MAX_SKB_FRAGS + 1]; 158}; 159 160struct ipoib_cm_tx_buf { 161 struct sk_buff *skb; 162 u64 mapping; 163}; 164 165struct ib_cm_id; 166 167struct ipoib_cm_data { 168 __be32 qpn; /* High byte MUST be ignored on receive */ 169 __be32 mtu; 170}; 171 172/* 173 * Quoting 10.3.1 Queue Pair and EE Context States: 174 * 175 * Note, for QPs that are associated with an SRQ, the Consumer should take the 176 * QP through the Error State before invoking a Destroy QP or a Modify QP to the 177 * Reset State. The Consumer may invoke the Destroy QP without first performing 178 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 179 * Last WQE Reached Event. However, if the Consumer does not wait for the 180 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 181 * leakage may occur. Therefore, it is good programming practice to tear down a 182 * QP that is associated with an SRQ by using the following process: 183 * 184 * - Put the QP in the Error State 185 * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 186 * - either: 187 * drain the CQ by invoking the Poll CQ verb and either wait for CQ 188 * to be empty or the number of Poll CQ operations has exceeded 189 * CQ capacity size; 190 * - or 191 * post another WR that completes on the same CQ and wait for this 192 * WR to return as a WC; 193 * - and then invoke a Destroy QP or Reset QP. 194 * 195 * We use the second option and wait for a completion on the 196 * same CQ before destroying QPs attached to our SRQ. 197 */ 198 199enum ipoib_cm_state { 200 IPOIB_CM_RX_LIVE, 201 IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 202 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 203}; 204 205struct ipoib_cm_rx { 206 struct ib_cm_id *id; 207 struct ib_qp *qp; 208 struct ipoib_cm_rx_buf *rx_ring; 209 struct list_head list; 210 struct net_device *dev; 211 unsigned long jiffies; 212 enum ipoib_cm_state state; 213 int recv_count; 214}; 215 216struct ipoib_cm_tx { 217 struct ib_cm_id *id; 218 struct ib_qp *qp; 219 struct list_head list; 220 struct net_device *dev; 221 struct ipoib_neigh *neigh; 222 struct ipoib_path *path; 223 struct ipoib_cm_tx_buf *tx_ring; 224 unsigned tx_head; 225 unsigned tx_tail; 226 unsigned long flags; 227 u32 mtu; 228}; 229 230struct ipoib_cm_rx_buf { 231 struct sk_buff *skb; 232 u64 mapping[IPOIB_CM_RX_SG]; 233}; 234 235struct ipoib_cm_dev_priv { 236 struct ib_srq *srq; 237 struct ipoib_cm_rx_buf *srq_ring; 238 struct ib_cm_id *id; 239 struct list_head passive_ids; /* state: LIVE */ 240 struct list_head rx_error_list; /* state: ERROR */ 241 struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 242 struct list_head rx_drain_list; /* state: FLUSH, drain started */ 243 struct list_head rx_reap_list; /* state: FLUSH, drain done */ 244 struct work_struct start_task; 245 struct work_struct reap_task; 246 struct work_struct skb_task; 247 struct work_struct rx_reap_task; 248 struct delayed_work stale_task; 249 struct sk_buff_head skb_queue; 250 struct list_head start_list; 251 struct list_head reap_list; 252 struct ib_wc ibwc[IPOIB_NUM_WC]; 253 struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 254 struct ib_recv_wr rx_wr; 255 int nonsrq_conn_qp; 256 int max_cm_mtu; 257 int num_frags; 258}; 259 260struct ipoib_ethtool_st { 261 u16 coalesce_usecs; 262 u16 max_coalesced_frames; 263}; 264 265struct ipoib_lro { 266 struct net_lro_mgr lro_mgr; 267 struct net_lro_desc lro_desc[IPOIB_MAX_LRO_DESCRIPTORS]; 268}; 269 270/* 271 * Device private locking: network stack tx_lock protects members used 272 * in TX fast path, lock protects everything else. lock nests inside 273 * of tx_lock (ie tx_lock must be acquired first if needed). 274 */ 275struct ipoib_dev_priv { 276 spinlock_t lock; 277 278 struct net_device *dev; 279 280 struct napi_struct napi; 281 282 unsigned long flags; 283 284 struct mutex vlan_mutex; 285 286 struct rb_root path_tree; 287 struct list_head path_list; 288 289 struct ipoib_mcast *broadcast; 290 struct list_head multicast_list; 291 struct rb_root multicast_tree; 292 293 struct delayed_work pkey_poll_task; 294 struct delayed_work mcast_task; 295 struct work_struct carrier_on_task; 296 struct work_struct flush_light; 297 struct work_struct flush_normal; 298 struct work_struct flush_heavy; 299 struct work_struct restart_task; 300 struct delayed_work ah_reap_task; 301 302 struct ib_device *ca; 303 u8 port; 304 u16 pkey; 305 u16 pkey_index; 306 struct ib_pd *pd; 307 struct ib_mr *mr; 308 struct ib_cq *recv_cq; 309 struct ib_cq *send_cq; 310 struct ib_qp *qp; 311 u32 qkey; 312 313 union ib_gid local_gid; 314 u16 local_lid; 315 316 unsigned int admin_mtu; 317 unsigned int mcast_mtu; 318 unsigned int max_ib_mtu; 319 320 struct ipoib_rx_buf *rx_ring; 321 322 struct ipoib_tx_buf *tx_ring; 323 unsigned tx_head; 324 unsigned tx_tail; 325 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 326 struct ib_send_wr tx_wr; 327 unsigned tx_outstanding; 328 struct ib_wc send_wc[MAX_SEND_CQE]; 329 330 struct ib_recv_wr rx_wr; 331 struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 332 333 struct ib_wc ibwc[IPOIB_NUM_WC]; 334 335 struct list_head dead_ahs; 336 337 struct ib_event_handler event_handler; 338 339 struct net_device *parent; 340 struct list_head child_intfs; 341 struct list_head list; 342 343#ifdef CONFIG_INFINIBAND_IPOIB_CM 344 struct ipoib_cm_dev_priv cm; 345#endif 346 347#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 348 struct list_head fs_list; 349 struct dentry *mcg_dentry; 350 struct dentry *path_dentry; 351#endif 352 int hca_caps; 353 struct ipoib_ethtool_st ethtool; 354 struct timer_list poll_timer; 355 356 struct ipoib_lro lro; 357}; 358 359struct ipoib_ah { 360 struct net_device *dev; 361 struct ib_ah *ah; 362 struct list_head list; 363 struct kref ref; 364 unsigned last_send; 365}; 366 367struct ipoib_path { 368 struct net_device *dev; 369 struct ib_sa_path_rec pathrec; 370 struct ipoib_ah *ah; 371 struct sk_buff_head queue; 372 373 struct list_head neigh_list; 374 375 int query_id; 376 struct ib_sa_query *query; 377 struct completion done; 378 379 struct rb_node rb_node; 380 struct list_head list; 381 int valid; 382}; 383 384struct ipoib_neigh { 385 struct ipoib_ah *ah; 386#ifdef CONFIG_INFINIBAND_IPOIB_CM 387 struct ipoib_cm_tx *cm; 388#endif 389 union ib_gid dgid; 390 struct sk_buff_head queue; 391 392 struct neighbour *neighbour; 393 struct net_device *dev; 394 395 struct list_head list; 396}; 397 398#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 399#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) 400 401static inline int ipoib_ud_need_sg(unsigned int ib_mtu) 402{ 403 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; 404} 405 406/* 407 * We stash a pointer to our private neighbour information after our 408 * hardware address in neigh->ha. The ALIGN() expression here makes 409 * sure that this pointer is stored aligned so that an unaligned 410 * load is not needed to dereference it. 411 */ 412static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) 413{ 414 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + 415 INFINIBAND_ALEN, sizeof(void *)); 416} 417 418struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, 419 struct net_device *dev); 420void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); 421 422extern struct workqueue_struct *ipoib_workqueue; 423 424/* functions */ 425 426int ipoib_poll(struct napi_struct *napi, int budget); 427void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 428void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 429 430struct ipoib_ah *ipoib_create_ah(struct net_device *dev, 431 struct ib_pd *pd, struct ib_ah_attr *attr); 432void ipoib_free_ah(struct kref *kref); 433static inline void ipoib_put_ah(struct ipoib_ah *ah) 434{ 435 kref_put(&ah->ref, ipoib_free_ah); 436} 437 438int ipoib_open(struct net_device *dev); 439int ipoib_add_pkey_attr(struct net_device *dev); 440int ipoib_add_umcast_attr(struct net_device *dev); 441 442void ipoib_send(struct net_device *dev, struct sk_buff *skb, 443 struct ipoib_ah *address, u32 qpn); 444void ipoib_reap_ah(struct work_struct *work); 445 446void ipoib_mark_paths_invalid(struct net_device *dev); 447void ipoib_flush_paths(struct net_device *dev); 448struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); 449 450int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 451void ipoib_ib_dev_flush_light(struct work_struct *work); 452void ipoib_ib_dev_flush_normal(struct work_struct *work); 453void ipoib_ib_dev_flush_heavy(struct work_struct *work); 454void ipoib_pkey_event(struct work_struct *work); 455void ipoib_ib_dev_cleanup(struct net_device *dev); 456 457int ipoib_ib_dev_open(struct net_device *dev); 458int ipoib_ib_dev_up(struct net_device *dev); 459int ipoib_ib_dev_down(struct net_device *dev, int flush); 460int ipoib_ib_dev_stop(struct net_device *dev, int flush); 461 462int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 463void ipoib_dev_cleanup(struct net_device *dev); 464 465void ipoib_mcast_join_task(struct work_struct *work); 466void ipoib_mcast_carrier_on_task(struct work_struct *work); 467void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); 468 469void ipoib_mcast_restart_task(struct work_struct *work); 470int ipoib_mcast_start_thread(struct net_device *dev); 471int ipoib_mcast_stop_thread(struct net_device *dev, int flush); 472 473void ipoib_mcast_dev_down(struct net_device *dev); 474void ipoib_mcast_dev_flush(struct net_device *dev); 475 476#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 477struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 478int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 479void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 480 union ib_gid *gid, 481 unsigned long *created, 482 unsigned int *queuelen, 483 unsigned int *complete, 484 unsigned int *send_only); 485 486struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); 487int ipoib_path_iter_next(struct ipoib_path_iter *iter); 488void ipoib_path_iter_read(struct ipoib_path_iter *iter, 489 struct ipoib_path *path); 490#endif 491 492int ipoib_mcast_attach(struct net_device *dev, u16 mlid, 493 union ib_gid *mgid, int set_qkey); 494 495int ipoib_init_qp(struct net_device *dev); 496int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); 497void ipoib_transport_dev_cleanup(struct net_device *dev); 498 499void ipoib_event(struct ib_event_handler *handler, 500 struct ib_event *record); 501 502int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); 503int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); 504 505void ipoib_pkey_poll(struct work_struct *work); 506int ipoib_pkey_dev_delay_open(struct net_device *dev); 507void ipoib_drain_cq(struct net_device *dev); 508 509void ipoib_set_ethtool_ops(struct net_device *dev); 510int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 511 512#ifdef CONFIG_INFINIBAND_IPOIB_CM 513 514#define IPOIB_FLAGS_RC 0x80 515#define IPOIB_FLAGS_UC 0x40 516 517/* We don't support UC connections at the moment */ 518#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 519 520extern int ipoib_max_conn_qp; 521 522static inline int ipoib_cm_admin_enabled(struct net_device *dev) 523{ 524 struct ipoib_dev_priv *priv = netdev_priv(dev); 525 return IPOIB_CM_SUPPORTED(dev->dev_addr) && 526 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 527} 528 529static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) 530{ 531 struct ipoib_dev_priv *priv = netdev_priv(dev); 532 return IPOIB_CM_SUPPORTED(n->ha) && 533 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 534} 535 536static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 537 538{ 539 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); 540} 541 542static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 543{ 544 return neigh->cm; 545} 546 547static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 548{ 549 neigh->cm = tx; 550} 551 552static inline int ipoib_cm_has_srq(struct net_device *dev) 553{ 554 struct ipoib_dev_priv *priv = netdev_priv(dev); 555 return !!priv->cm.srq; 556} 557 558static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 559{ 560 struct ipoib_dev_priv *priv = netdev_priv(dev); 561 return priv->cm.max_cm_mtu; 562} 563 564void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); 565int ipoib_cm_dev_open(struct net_device *dev); 566void ipoib_cm_dev_stop(struct net_device *dev); 567int ipoib_cm_dev_init(struct net_device *dev); 568int ipoib_cm_add_mode_attr(struct net_device *dev); 569void ipoib_cm_dev_cleanup(struct net_device *dev); 570struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 571 struct ipoib_neigh *neigh); 572void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 573void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 574 unsigned int mtu); 575void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 576void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 577#else 578 579struct ipoib_cm_tx; 580 581#define ipoib_max_conn_qp 0 582 583static inline int ipoib_cm_admin_enabled(struct net_device *dev) 584{ 585 return 0; 586} 587static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) 588 589{ 590 return 0; 591} 592 593static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 594 595{ 596 return 0; 597} 598 599static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 600{ 601 return NULL; 602} 603 604static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 605{ 606} 607 608static inline int ipoib_cm_has_srq(struct net_device *dev) 609{ 610 return 0; 611} 612 613static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 614{ 615 return 0; 616} 617 618static inline 619void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) 620{ 621 return; 622} 623 624static inline 625int ipoib_cm_dev_open(struct net_device *dev) 626{ 627 return 0; 628} 629 630static inline 631void ipoib_cm_dev_stop(struct net_device *dev) 632{ 633 return; 634} 635 636static inline 637int ipoib_cm_dev_init(struct net_device *dev) 638{ 639 return -ENOSYS; 640} 641 642static inline 643void ipoib_cm_dev_cleanup(struct net_device *dev) 644{ 645 return; 646} 647 648static inline 649struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 650 struct ipoib_neigh *neigh) 651{ 652 return NULL; 653} 654 655static inline 656void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 657{ 658 return; 659} 660 661static inline 662int ipoib_cm_add_mode_attr(struct net_device *dev) 663{ 664 return 0; 665} 666 667static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 668 unsigned int mtu) 669{ 670 dev_kfree_skb_any(skb); 671} 672 673static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 674{ 675} 676 677static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 678{ 679} 680#endif 681 682#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 683void ipoib_create_debug_files(struct net_device *dev); 684void ipoib_delete_debug_files(struct net_device *dev); 685int ipoib_register_debugfs(void); 686void ipoib_unregister_debugfs(void); 687#else 688static inline void ipoib_create_debug_files(struct net_device *dev) { } 689static inline void ipoib_delete_debug_files(struct net_device *dev) { } 690static inline int ipoib_register_debugfs(void) { return 0; } 691static inline void ipoib_unregister_debugfs(void) { } 692#endif 693 694#define ipoib_printk(level, priv, format, arg...) \ 695 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) 696#define ipoib_warn(priv, format, arg...) \ 697 ipoib_printk(KERN_WARNING, priv, format , ## arg) 698 699extern int ipoib_sendq_size; 700extern int ipoib_recvq_size; 701 702extern struct ib_sa_client ipoib_sa_client; 703 704#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 705extern int ipoib_debug_level; 706 707#define ipoib_dbg(priv, format, arg...) \ 708 do { \ 709 if (ipoib_debug_level > 0) \ 710 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 711 } while (0) 712#define ipoib_dbg_mcast(priv, format, arg...) \ 713 do { \ 714 if (mcast_debug_level > 0) \ 715 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 716 } while (0) 717#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 718#define ipoib_dbg(priv, format, arg...) \ 719 do { (void) (priv); } while (0) 720#define ipoib_dbg_mcast(priv, format, arg...) \ 721 do { (void) (priv); } while (0) 722#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 723 724#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 725#define ipoib_dbg_data(priv, format, arg...) \ 726 do { \ 727 if (data_debug_level > 0) \ 728 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 729 } while (0) 730#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 731#define ipoib_dbg_data(priv, format, arg...) \ 732 do { (void) (priv); } while (0) 733#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 734 735#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 736 737#endif /* _IPOIB_H */ 738