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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 two7 * licenses. You may choose to be licensed under the terms of the GNU8 * General Public License (GPL) Version 2, available from the file9 * COPYING in the main directory of this source tree, or the10 * OpenIB.org BSD license below:11 *12 * Redistribution and use in source and binary forms, with or13 * without modification, are permitted provided that the following14 * conditions are met:15 *16 * - Redistributions of source code must retain the above17 * copyright notice, this list of conditions and the following18 * disclaimer.19 *20 * - Redistributions in binary form must reproduce the above21 * copyright notice, this list of conditions and the following22 * disclaimer in the documentation and/or other materials23 * 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 OF27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE32 * SOFTWARE.33 */34 35#ifndef _IPOIB_H36#define _IPOIB_H37 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/* constants */56 57enum ipoib_flush_level {58 IPOIB_FLUSH_LIGHT,59 IPOIB_FLUSH_NORMAL,60 IPOIB_FLUSH_HEAVY61};62 63enum {64 IPOIB_ENCAP_LEN = 4,65 IPOIB_PSEUDO_LEN = 20,66 IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN,67 68 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN,69 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */70 71 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */72 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN,73 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE,74 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE,75 IPOIB_RX_RING_SIZE = 256,76 IPOIB_TX_RING_SIZE = 128,77 IPOIB_MAX_QUEUE_SIZE = 8192,78 IPOIB_MIN_QUEUE_SIZE = 2,79 IPOIB_CM_MAX_CONN_QP = 4096,80 81 IPOIB_NUM_WC = 4,82 83 IPOIB_MAX_PATH_REC_QUEUE = 3,84 IPOIB_MAX_MCAST_QUEUE = 64,85 86 IPOIB_FLAG_OPER_UP = 0,87 IPOIB_FLAG_INITIALIZED = 1,88 IPOIB_FLAG_ADMIN_UP = 2,89 IPOIB_PKEY_ASSIGNED = 3,90 IPOIB_FLAG_SUBINTERFACE = 5,91 IPOIB_STOP_REAPER = 7,92 IPOIB_FLAG_ADMIN_CM = 9,93 IPOIB_FLAG_UMCAST = 10,94 IPOIB_NEIGH_TBL_FLUSH = 12,95 IPOIB_FLAG_DEV_ADDR_SET = 13,96 IPOIB_FLAG_DEV_ADDR_CTRL = 14,97 98 IPOIB_MAX_BACKOFF_SECONDS = 16,99 100 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */101 IPOIB_MCAST_FLAG_SENDONLY = 1,102 /*103 * For IPOIB_MCAST_FLAG_BUSY104 * When set, in flight join and mcast->mc is unreliable105 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or106 * haven't started yet107 * When clear and mcast->mc is valid pointer, join was successful108 */109 IPOIB_MCAST_FLAG_BUSY = 2,110 IPOIB_MCAST_FLAG_ATTACHED = 3,111 112 MAX_SEND_CQE = 64,113 IPOIB_CM_COPYBREAK = 256,114 115 IPOIB_NON_CHILD = 0,116 IPOIB_LEGACY_CHILD = 1,117 IPOIB_RTNL_CHILD = 2,118};119 120#define IPOIB_OP_RECV (1ul << 31)121#ifdef CONFIG_INFINIBAND_IPOIB_CM122#define IPOIB_OP_CM (1ul << 30)123#else124#define IPOIB_OP_CM (0)125#endif126 127#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))128 129/* structs */130 131struct ipoib_header {132 __be16 proto;133 u16 reserved;134};135 136struct ipoib_pseudo_header {137 u8 hwaddr[INFINIBAND_ALEN];138};139 140static inline void skb_add_pseudo_hdr(struct sk_buff *skb)141{142 char *data = skb_push(skb, IPOIB_PSEUDO_LEN);143 144 /*145 * only the ipoib header is present now, make room for a dummy146 * pseudo header and set skb field accordingly147 */148 memset(data, 0, IPOIB_PSEUDO_LEN);149 skb_reset_mac_header(skb);150 skb_pull(skb, IPOIB_HARD_LEN);151}152 153static inline struct ipoib_dev_priv *ipoib_priv(const struct net_device *dev)154{155 struct rdma_netdev *rn = netdev_priv(dev);156 157 return rn->clnt_priv;158}159 160/* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */161struct ipoib_mcast {162 struct ib_sa_mcmember_rec mcmember;163 struct ib_sa_multicast *mc;164 struct ipoib_ah *ah;165 166 struct rb_node rb_node;167 struct list_head list;168 169 unsigned long created;170 unsigned long backoff;171 unsigned long delay_until;172 173 unsigned long flags;174 unsigned char logcount;175 176 struct list_head neigh_list;177 178 struct sk_buff_head pkt_queue;179 180 struct net_device *dev;181 struct completion done;182};183 184struct ipoib_rx_buf {185 struct sk_buff *skb;186 u64 mapping[IPOIB_UD_RX_SG];187};188 189struct ipoib_tx_buf {190 struct sk_buff *skb;191 u64 mapping[MAX_SKB_FRAGS + 1];192};193 194struct ib_cm_id;195 196struct ipoib_cm_data {197 __be32 qpn; /* High byte MUST be ignored on receive */198 __be32 mtu;199};200 201/*202 * Quoting 10.3.1 Queue Pair and EE Context States:203 *204 * Note, for QPs that are associated with an SRQ, the Consumer should take the205 * QP through the Error State before invoking a Destroy QP or a Modify QP to the206 * Reset State. The Consumer may invoke the Destroy QP without first performing207 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous208 * Last WQE Reached Event. However, if the Consumer does not wait for the209 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment210 * leakage may occur. Therefore, it is good programming practice to tear down a211 * QP that is associated with an SRQ by using the following process:212 *213 * - Put the QP in the Error State214 * - Wait for the Affiliated Asynchronous Last WQE Reached Event;215 * - either:216 * drain the CQ by invoking the Poll CQ verb and either wait for CQ217 * to be empty or the number of Poll CQ operations has exceeded218 * CQ capacity size;219 * - or220 * post another WR that completes on the same CQ and wait for this221 * WR to return as a WC;222 * - and then invoke a Destroy QP or Reset QP.223 *224 * We use the second option and wait for a completion on the225 * same CQ before destroying QPs attached to our SRQ.226 */227 228enum ipoib_cm_state {229 IPOIB_CM_RX_LIVE,230 IPOIB_CM_RX_ERROR, /* Ignored by stale task */231 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */232};233 234struct ipoib_cm_rx {235 struct ib_cm_id *id;236 struct ib_qp *qp;237 struct ipoib_cm_rx_buf *rx_ring;238 struct list_head list;239 struct net_device *dev;240 unsigned long jiffies;241 enum ipoib_cm_state state;242 int recv_count;243};244 245struct ipoib_cm_tx {246 struct ib_cm_id *id;247 struct ib_qp *qp;248 struct list_head list;249 struct net_device *dev;250 struct ipoib_neigh *neigh;251 struct ipoib_tx_buf *tx_ring;252 unsigned int tx_head;253 unsigned int tx_tail;254 unsigned long flags;255 u32 mtu;256 unsigned int max_send_sge;257};258 259struct ipoib_cm_rx_buf {260 struct sk_buff *skb;261 u64 mapping[IPOIB_CM_RX_SG];262};263 264struct ipoib_cm_dev_priv {265 struct ib_srq *srq;266 struct ipoib_cm_rx_buf *srq_ring;267 struct ib_cm_id *id;268 struct list_head passive_ids; /* state: LIVE */269 struct list_head rx_error_list; /* state: ERROR */270 struct list_head rx_flush_list; /* state: FLUSH, drain not started */271 struct list_head rx_drain_list; /* state: FLUSH, drain started */272 struct list_head rx_reap_list; /* state: FLUSH, drain done */273 struct work_struct start_task;274 struct work_struct reap_task;275 struct work_struct skb_task;276 struct work_struct rx_reap_task;277 struct delayed_work stale_task;278 struct sk_buff_head skb_queue;279 struct list_head start_list;280 struct list_head reap_list;281 struct ib_wc ibwc[IPOIB_NUM_WC];282 struct ib_sge rx_sge[IPOIB_CM_RX_SG];283 struct ib_recv_wr rx_wr;284 int nonsrq_conn_qp;285 int max_cm_mtu;286 int num_frags;287};288 289struct ipoib_ethtool_st {290 u16 coalesce_usecs;291 u16 max_coalesced_frames;292};293 294struct ipoib_neigh_table;295 296struct ipoib_neigh_hash {297 struct ipoib_neigh_table *ntbl;298 struct ipoib_neigh __rcu **buckets;299 struct rcu_head rcu;300 u32 mask;301 u32 size;302};303 304struct ipoib_neigh_table {305 struct ipoib_neigh_hash __rcu *htbl;306 atomic_t entries;307 struct completion flushed;308 struct completion deleted;309};310 311struct ipoib_qp_state_validate {312 struct work_struct work;313 struct ipoib_dev_priv *priv;314};315 316/*317 * Device private locking: network stack tx_lock protects members used318 * in TX fast path, lock protects everything else. lock nests inside319 * of tx_lock (ie tx_lock must be acquired first if needed).320 */321struct ipoib_dev_priv {322 spinlock_t lock;323 324 struct net_device *dev;325 void (*next_priv_destructor)(struct net_device *dev);326 327 struct napi_struct send_napi;328 struct napi_struct recv_napi;329 330 unsigned long flags;331 332 /*333 * This protects access to the child_intfs list.334 * To READ from child_intfs the RTNL or vlan_rwsem read side must be335 * held. To WRITE RTNL and the vlan_rwsem write side must be held (in336 * that order) This lock exists because we have a few contexts where337 * we need the child_intfs, but do not want to grab the RTNL.338 */339 struct rw_semaphore vlan_rwsem;340 struct mutex mcast_mutex;341 342 struct rb_root path_tree;343 struct list_head path_list;344 345 struct ipoib_neigh_table ntbl;346 347 struct ipoib_mcast *broadcast;348 struct list_head multicast_list;349 struct rb_root multicast_tree;350 351 struct workqueue_struct *wq;352 struct delayed_work mcast_task;353 struct work_struct carrier_on_task;354 struct work_struct reschedule_napi_work;355 struct work_struct flush_light;356 struct work_struct flush_normal;357 struct work_struct flush_heavy;358 struct work_struct restart_task;359 struct work_struct tx_timeout_work;360 struct delayed_work ah_reap_task;361 struct delayed_work neigh_reap_task;362 struct ib_device *ca;363 u8 port;364 u16 pkey;365 u16 pkey_index;366 struct ib_pd *pd;367 struct ib_cq *recv_cq;368 struct ib_cq *send_cq;369 struct ib_qp *qp;370 u32 qkey;371 372 union ib_gid local_gid;373 u32 local_lid;374 375 unsigned int admin_mtu;376 unsigned int mcast_mtu;377 unsigned int max_ib_mtu;378 379 struct ipoib_rx_buf *rx_ring;380 381 struct ipoib_tx_buf *tx_ring;382 /* cyclic ring variables for managing tx_ring, for UD only */383 unsigned int tx_head;384 unsigned int tx_tail;385 /* cyclic ring variables for counting overall outstanding send WRs */386 unsigned int global_tx_head;387 unsigned int global_tx_tail;388 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1];389 struct ib_ud_wr tx_wr;390 struct ib_wc send_wc[MAX_SEND_CQE];391 392 struct ib_recv_wr rx_wr;393 struct ib_sge rx_sge[IPOIB_UD_RX_SG];394 395 struct ib_wc ibwc[IPOIB_NUM_WC];396 397 struct list_head dead_ahs;398 399 struct ib_event_handler event_handler;400 401 struct net_device *parent;402 struct list_head child_intfs;403 struct list_head list;404 int child_type;405 406#ifdef CONFIG_INFINIBAND_IPOIB_CM407 struct ipoib_cm_dev_priv cm;408#endif409 410#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG411 struct list_head fs_list;412 struct dentry *mcg_dentry;413 struct dentry *path_dentry;414#endif415 u64 hca_caps;416 u64 kernel_caps;417 struct ipoib_ethtool_st ethtool;418 unsigned int max_send_sge;419 const struct net_device_ops *rn_ops;420};421 422struct ipoib_ah {423 struct net_device *dev;424 struct ib_ah *ah;425 struct list_head list;426 struct kref ref;427 unsigned int last_send;428 int valid;429};430 431struct ipoib_path {432 struct net_device *dev;433 struct sa_path_rec pathrec;434 struct ipoib_ah *ah;435 struct sk_buff_head queue;436 437 struct list_head neigh_list;438 439 int query_id;440 struct ib_sa_query *query;441 struct completion done;442 443 struct rb_node rb_node;444 struct list_head list;445};446 447struct ipoib_neigh {448 struct ipoib_ah *ah;449#ifdef CONFIG_INFINIBAND_IPOIB_CM450 struct ipoib_cm_tx *cm;451#endif452 u8 daddr[INFINIBAND_ALEN];453 struct sk_buff_head queue;454 455 struct net_device *dev;456 457 struct list_head list;458 struct ipoib_neigh __rcu *hnext;459 struct rcu_head rcu;460 refcount_t refcnt;461 unsigned long alive;462};463 464#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)465#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)466 467void ipoib_neigh_dtor(struct ipoib_neigh *neigh);468static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)469{470 if (refcount_dec_and_test(&neigh->refcnt))471 ipoib_neigh_dtor(neigh);472}473struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr);474struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr,475 struct net_device *dev);476void ipoib_neigh_free(struct ipoib_neigh *neigh);477void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid);478 479extern struct workqueue_struct *ipoib_workqueue;480 481/* functions */482 483int ipoib_rx_poll(struct napi_struct *napi, int budget);484int ipoib_tx_poll(struct napi_struct *napi, int budget);485void ipoib_ib_rx_completion(struct ib_cq *cq, void *ctx_ptr);486void ipoib_ib_tx_completion(struct ib_cq *cq, void *ctx_ptr);487 488struct ipoib_ah *ipoib_create_ah(struct net_device *dev,489 struct ib_pd *pd, struct rdma_ah_attr *attr);490void ipoib_free_ah(struct kref *kref);491static inline void ipoib_put_ah(struct ipoib_ah *ah)492{493 kref_put(&ah->ref, ipoib_free_ah);494}495int ipoib_open(struct net_device *dev);496void ipoib_intf_free(struct net_device *dev);497int ipoib_add_pkey_attr(struct net_device *dev);498int ipoib_add_umcast_attr(struct net_device *dev);499 500int ipoib_send(struct net_device *dev, struct sk_buff *skb,501 struct ib_ah *address, u32 dqpn);502void ipoib_reap_ah(struct work_struct *work);503 504void ipoib_napi_schedule_work(struct work_struct *work);505struct ipoib_path *__path_find(struct net_device *dev, void *gid);506void ipoib_mark_paths_invalid(struct net_device *dev);507void ipoib_flush_paths(struct net_device *dev);508struct net_device *ipoib_intf_alloc(struct ib_device *hca, u32 port,509 const char *format);510int ipoib_intf_init(struct ib_device *hca, u32 port, const char *format,511 struct net_device *dev);512void ipoib_ib_dev_flush_light(struct work_struct *work);513void ipoib_ib_dev_flush_normal(struct work_struct *work);514void ipoib_ib_dev_flush_heavy(struct work_struct *work);515void ipoib_ib_tx_timeout_work(struct work_struct *work);516void ipoib_ib_dev_cleanup(struct net_device *dev);517 518int ipoib_ib_dev_open_default(struct net_device *dev);519int ipoib_ib_dev_open(struct net_device *dev);520void ipoib_ib_dev_stop(struct net_device *dev);521void ipoib_ib_dev_up(struct net_device *dev);522void ipoib_ib_dev_down(struct net_device *dev);523int ipoib_ib_dev_stop_default(struct net_device *dev);524void ipoib_pkey_dev_check_presence(struct net_device *dev);525 526void ipoib_mcast_join_task(struct work_struct *work);527void ipoib_mcast_carrier_on_task(struct work_struct *work);528void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);529 530void ipoib_mcast_restart_task(struct work_struct *work);531void ipoib_mcast_start_thread(struct net_device *dev);532void ipoib_mcast_stop_thread(struct net_device *dev);533 534void ipoib_mcast_dev_flush(struct net_device *dev);535 536int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req);537void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv,538 struct ipoib_tx_buf *tx_req);539 540struct rtnl_link_ops *ipoib_get_link_ops(void);541 542static inline void ipoib_build_sge(struct ipoib_dev_priv *priv,543 struct ipoib_tx_buf *tx_req)544{545 int i, off;546 struct sk_buff *skb = tx_req->skb;547 skb_frag_t *frags = skb_shinfo(skb)->frags;548 int nr_frags = skb_shinfo(skb)->nr_frags;549 u64 *mapping = tx_req->mapping;550 551 if (skb_headlen(skb)) {552 priv->tx_sge[0].addr = mapping[0];553 priv->tx_sge[0].length = skb_headlen(skb);554 off = 1;555 } else556 off = 0;557 558 for (i = 0; i < nr_frags; ++i) {559 priv->tx_sge[i + off].addr = mapping[i + off];560 priv->tx_sge[i + off].length = skb_frag_size(&frags[i]);561 }562 priv->tx_wr.wr.num_sge = nr_frags + off;563}564 565#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG566struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);567int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);568void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,569 union ib_gid *gid,570 unsigned long *created,571 unsigned int *queuelen,572 unsigned int *complete,573 unsigned int *send_only);574 575struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);576int ipoib_path_iter_next(struct ipoib_path_iter *iter);577void ipoib_path_iter_read(struct ipoib_path_iter *iter,578 struct ipoib_path *path);579#endif580 581int ipoib_mcast_attach(struct net_device *dev, struct ib_device *hca,582 union ib_gid *mgid, u16 mlid, int set_qkey, u32 qkey);583int ipoib_mcast_detach(struct net_device *dev, struct ib_device *hca,584 union ib_gid *mgid, u16 mlid);585void ipoib_mcast_remove_list(struct list_head *remove_list);586void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid,587 struct list_head *remove_list);588 589int ipoib_init_qp(struct net_device *dev);590int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);591void ipoib_transport_dev_cleanup(struct net_device *dev);592 593void ipoib_event(struct ib_event_handler *handler,594 struct ib_event *record);595 596int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);597int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);598 599int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv,600 u16 pkey, int child_type);601 602int __init ipoib_netlink_init(void);603void __exit ipoib_netlink_fini(void);604 605void ipoib_set_umcast(struct net_device *ndev, int umcast_val);606int ipoib_set_mode(struct net_device *dev, const char *buf);607 608void ipoib_setup_common(struct net_device *dev);609 610void ipoib_drain_cq(struct net_device *dev);611 612void ipoib_set_ethtool_ops(struct net_device *dev);613 614#define IPOIB_FLAGS_RC 0x80615#define IPOIB_FLAGS_UC 0x40616 617/* We don't support UC connections at the moment */618#define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC))619 620#ifdef CONFIG_INFINIBAND_IPOIB_CM621 622extern int ipoib_max_conn_qp;623 624static inline int ipoib_cm_admin_enabled(struct net_device *dev)625{626 struct ipoib_dev_priv *priv = ipoib_priv(dev);627 return IPOIB_CM_SUPPORTED(dev->dev_addr) &&628 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);629}630 631static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)632{633 struct ipoib_dev_priv *priv = ipoib_priv(dev);634 return IPOIB_CM_SUPPORTED(hwaddr) &&635 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);636}637 638static inline int ipoib_cm_up(struct ipoib_neigh *neigh)639 640{641 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);642}643 644static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)645{646 return neigh->cm;647}648 649static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)650{651 neigh->cm = tx;652}653 654static inline int ipoib_cm_has_srq(struct net_device *dev)655{656 struct ipoib_dev_priv *priv = ipoib_priv(dev);657 return !!priv->cm.srq;658}659 660static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)661{662 struct ipoib_dev_priv *priv = ipoib_priv(dev);663 return priv->cm.max_cm_mtu;664}665 666void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);667int ipoib_cm_dev_open(struct net_device *dev);668void ipoib_cm_dev_stop(struct net_device *dev);669int ipoib_cm_dev_init(struct net_device *dev);670int ipoib_cm_add_mode_attr(struct net_device *dev);671void ipoib_cm_dev_cleanup(struct net_device *dev);672struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,673 struct ipoib_neigh *neigh);674void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);675void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,676 unsigned int mtu);677void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);678void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);679#else680 681#define ipoib_max_conn_qp 0682 683static inline int ipoib_cm_admin_enabled(struct net_device *dev)684{685 return 0;686}687static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr)688 689{690 return 0;691}692 693static inline int ipoib_cm_up(struct ipoib_neigh *neigh)694 695{696 return 0;697}698 699static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)700{701 return NULL;702}703 704static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)705{706}707 708static inline int ipoib_cm_has_srq(struct net_device *dev)709{710 return 0;711}712 713static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)714{715 return 0;716}717 718static inline719void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)720{721 return;722}723 724static inline725int ipoib_cm_dev_open(struct net_device *dev)726{727 return 0;728}729 730static inline731void ipoib_cm_dev_stop(struct net_device *dev)732{733 return;734}735 736static inline737int ipoib_cm_dev_init(struct net_device *dev)738{739 return -EOPNOTSUPP;740}741 742static inline743void ipoib_cm_dev_cleanup(struct net_device *dev)744{745 return;746}747 748static inline749struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,750 struct ipoib_neigh *neigh)751{752 return NULL;753}754 755static inline756void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)757{758 return;759}760 761static inline762int ipoib_cm_add_mode_attr(struct net_device *dev)763{764 return 0;765}766 767static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,768 unsigned int mtu)769{770 dev_kfree_skb_any(skb);771}772 773static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)774{775}776 777static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)778{779}780#endif781 782#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG783void ipoib_create_debug_files(struct net_device *dev);784void ipoib_delete_debug_files(struct net_device *dev);785void ipoib_register_debugfs(void);786void ipoib_unregister_debugfs(void);787#else788static inline void ipoib_create_debug_files(struct net_device *dev) { }789static inline void ipoib_delete_debug_files(struct net_device *dev) { }790static inline void ipoib_register_debugfs(void) { }791static inline void ipoib_unregister_debugfs(void) { }792#endif793 794#define ipoib_printk(level, priv, format, arg...) \795 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)796#define ipoib_warn(priv, format, arg...) \797do { \798 static DEFINE_RATELIMIT_STATE(_rs, \799 10 * HZ /*10 seconds */, \800 100); \801 if (__ratelimit(&_rs)) \802 ipoib_printk(KERN_WARNING, priv, format , ## arg);\803} while (0)804 805extern int ipoib_sendq_size;806extern int ipoib_recvq_size;807 808extern struct ib_sa_client ipoib_sa_client;809 810#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG811extern int ipoib_debug_level;812 813#define ipoib_dbg(priv, format, arg...) \814 do { \815 if (ipoib_debug_level > 0) \816 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \817 } while (0)818#define ipoib_dbg_mcast(priv, format, arg...) \819 do { \820 if (mcast_debug_level > 0) \821 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \822 } while (0)823#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */824#define ipoib_dbg(priv, format, arg...) \825 do { (void) (priv); } while (0)826#define ipoib_dbg_mcast(priv, format, arg...) \827 do { (void) (priv); } while (0)828#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */829 830#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA831#define ipoib_dbg_data(priv, format, arg...) \832 do { \833 if (data_debug_level > 0) \834 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \835 } while (0)836#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */837#define ipoib_dbg_data(priv, format, arg...) \838 do { (void) (priv); } while (0)839#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */840 841#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)842 843#endif /* _IPOIB_H */844