11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 32a1d9b7fSRoland Dreier * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 42a1d9b7fSRoland Dreier * Copyright (c) 2004 Voltaire, Inc. All rights reserved. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * This software is available to you under a choice of one of two 71da177e4SLinus Torvalds * licenses. You may choose to be licensed under the terms of the GNU 81da177e4SLinus Torvalds * General Public License (GPL) Version 2, available from the file 91da177e4SLinus Torvalds * COPYING in the main directory of this source tree, or the 101da177e4SLinus Torvalds * OpenIB.org BSD license below: 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or 131da177e4SLinus Torvalds * without modification, are permitted provided that the following 141da177e4SLinus Torvalds * conditions are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * - Redistributions of source code must retain the above 171da177e4SLinus Torvalds * copyright notice, this list of conditions and the following 181da177e4SLinus Torvalds * disclaimer. 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * - Redistributions in binary form must reproduce the above 211da177e4SLinus Torvalds * copyright notice, this list of conditions and the following 221da177e4SLinus Torvalds * disclaimer in the documentation and/or other materials 231da177e4SLinus Torvalds * provided with the distribution. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 261da177e4SLinus Torvalds * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 281da177e4SLinus Torvalds * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 291da177e4SLinus Torvalds * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 301da177e4SLinus Torvalds * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 311da177e4SLinus Torvalds * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 321da177e4SLinus Torvalds * SOFTWARE. 331da177e4SLinus Torvalds */ 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds #ifndef _IPOIB_H 361da177e4SLinus Torvalds #define _IPOIB_H 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/list.h> 391da177e4SLinus Torvalds #include <linux/skbuff.h> 401da177e4SLinus Torvalds #include <linux/netdevice.h> 411da177e4SLinus Torvalds #include <linux/workqueue.h> 421da177e4SLinus Torvalds #include <linux/kref.h> 431da177e4SLinus Torvalds #include <linux/if_infiniband.h> 4495ed644fSIngo Molnar #include <linux/mutex.h> 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds #include <net/neighbour.h> 47936d7de3SRoland Dreier #include <net/sch_generic.h> 481da177e4SLinus Torvalds 4960063497SArun Sharma #include <linux/atomic.h> 501da177e4SLinus Torvalds 51a4d61e84SRoland Dreier #include <rdma/ib_verbs.h> 52a4d61e84SRoland Dreier #include <rdma/ib_pack.h> 53a4d61e84SRoland Dreier #include <rdma/ib_sa.h> 5419e364f6SOr Gerlitz #include <linux/sched.h> 551da177e4SLinus Torvalds /* constants */ 561da177e4SLinus Torvalds 57ee1e2c82SMoni Shoua enum ipoib_flush_level { 58ee1e2c82SMoni Shoua IPOIB_FLUSH_LIGHT, 59ee1e2c82SMoni Shoua IPOIB_FLUSH_NORMAL, 60ee1e2c82SMoni Shoua IPOIB_FLUSH_HEAVY 61ee1e2c82SMoni Shoua }; 62ee1e2c82SMoni Shoua 631da177e4SLinus Torvalds enum { 641da177e4SLinus Torvalds IPOIB_ENCAP_LEN = 4, 65fc791b63SPaolo Abeni IPOIB_PSEUDO_LEN = 20, 66fc791b63SPaolo Abeni IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN, 671da177e4SLinus Torvalds 68bc7b3a36SShirley Ma IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, 69bc7b3a36SShirley Ma IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ 70bc7b3a36SShirley Ma 71839fcabaSMichael S. Tsirkin IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ 72839fcabaSMichael S. Tsirkin IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, 73839fcabaSMichael S. Tsirkin IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, 74839fcabaSMichael S. Tsirkin IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, 75bc3a290bSEli Cohen IPOIB_RX_RING_SIZE = 256, 76bc3a290bSEli Cohen IPOIB_TX_RING_SIZE = 128, 770f485251SShirley Ma IPOIB_MAX_QUEUE_SIZE = 8192, 780f485251SShirley Ma IPOIB_MIN_QUEUE_SIZE = 2, 7968e995a2SPradeep Satyanarayana IPOIB_CM_MAX_CONN_QP = 4096, 801da177e4SLinus Torvalds 811da177e4SLinus Torvalds IPOIB_NUM_WC = 4, 821da177e4SLinus Torvalds 831da177e4SLinus Torvalds IPOIB_MAX_PATH_REC_QUEUE = 3, 842866196fSDoug Ledford IPOIB_MAX_MCAST_QUEUE = 64, 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds IPOIB_FLAG_OPER_UP = 0, 877a343d4cSLeonid Arsh IPOIB_FLAG_INITIALIZED = 1, 887a343d4cSLeonid Arsh IPOIB_FLAG_ADMIN_UP = 2, 897a343d4cSLeonid Arsh IPOIB_PKEY_ASSIGNED = 3, 907a343d4cSLeonid Arsh IPOIB_FLAG_SUBINTERFACE = 5, 917a343d4cSLeonid Arsh IPOIB_STOP_REAPER = 7, 921b524963SMichael S. Tsirkin IPOIB_FLAG_ADMIN_CM = 9, 931b524963SMichael S. Tsirkin IPOIB_FLAG_UMCAST = 10, 94b63b70d8SShlomo Pongratz IPOIB_NEIGH_TBL_FLUSH = 12, 95492a7e67SMark Bloch IPOIB_FLAG_DEV_ADDR_SET = 13, 96492a7e67SMark Bloch IPOIB_FLAG_DEV_ADDR_CTRL = 14, 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds IPOIB_MAX_BACKOFF_SECONDS = 16, 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ 1011da177e4SLinus Torvalds IPOIB_MCAST_FLAG_SENDONLY = 1, 10269911416SDoug Ledford /* 10369911416SDoug Ledford * For IPOIB_MCAST_FLAG_BUSY 10469911416SDoug Ledford * When set, in flight join and mcast->mc is unreliable 10569911416SDoug Ledford * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or 10669911416SDoug Ledford * haven't started yet 10769911416SDoug Ledford * When clear and mcast->mc is valid pointer, join was successful 10869911416SDoug Ledford */ 10969911416SDoug Ledford IPOIB_MCAST_FLAG_BUSY = 2, 1101da177e4SLinus Torvalds IPOIB_MCAST_FLAG_ATTACHED = 3, 111f56bcd80SEli Cohen 112b9595c5bSErez Shitrit MAX_SEND_CQE = 64, 113f89271daSEli Cohen IPOIB_CM_COPYBREAK = 256, 1149baa0b03SOr Gerlitz 1159baa0b03SOr Gerlitz IPOIB_NON_CHILD = 0, 1169baa0b03SOr Gerlitz IPOIB_LEGACY_CHILD = 1, 1179baa0b03SOr Gerlitz IPOIB_RTNL_CHILD = 2, 1181da177e4SLinus Torvalds }; 1191da177e4SLinus Torvalds 120839fcabaSMichael S. Tsirkin #define IPOIB_OP_RECV (1ul << 31) 121839fcabaSMichael S. Tsirkin #ifdef CONFIG_INFINIBAND_IPOIB_CM 1221b524963SMichael S. Tsirkin #define IPOIB_OP_CM (1ul << 30) 123839fcabaSMichael S. Tsirkin #else 1241b524963SMichael S. Tsirkin #define IPOIB_OP_CM (0) 125839fcabaSMichael S. Tsirkin #endif 126839fcabaSMichael S. Tsirkin 1279d1ad66eSShlomo Pongratz #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF)) 1289d1ad66eSShlomo Pongratz 1291da177e4SLinus Torvalds /* structs */ 1301da177e4SLinus Torvalds 1311da177e4SLinus Torvalds struct ipoib_header { 13297f52eb4SSean Hefty __be16 proto; 1331da177e4SLinus Torvalds u16 reserved; 1341da177e4SLinus Torvalds }; 1351da177e4SLinus Torvalds 136fc791b63SPaolo Abeni struct ipoib_pseudo_header { 1371da177e4SLinus Torvalds u8 hwaddr[INFINIBAND_ALEN]; 1381da177e4SLinus Torvalds }; 1391da177e4SLinus Torvalds 140fc791b63SPaolo Abeni static inline void skb_add_pseudo_hdr(struct sk_buff *skb) 141b49fe362SEric Dumazet { 142fc791b63SPaolo Abeni char *data = skb_push(skb, IPOIB_PSEUDO_LEN); 143fc791b63SPaolo Abeni 144fc791b63SPaolo Abeni /* 145fc791b63SPaolo Abeni * only the ipoib header is present now, make room for a dummy 146fc791b63SPaolo Abeni * pseudo header and set skb field accordingly 147fc791b63SPaolo Abeni */ 148fc791b63SPaolo Abeni memset(data, 0, IPOIB_PSEUDO_LEN); 149fc791b63SPaolo Abeni skb_reset_mac_header(skb); 150fc791b63SPaolo Abeni skb_pull(skb, IPOIB_HARD_LEN); 151b49fe362SEric Dumazet } 152b49fe362SEric Dumazet 153cd565b4bSErez Shitrit static inline struct ipoib_dev_priv *ipoib_priv(const struct net_device *dev) 154cd565b4bSErez Shitrit { 155cd565b4bSErez Shitrit struct rdma_netdev *rn = netdev_priv(dev); 156cd565b4bSErez Shitrit 157cd565b4bSErez Shitrit return rn->clnt_priv; 158cd565b4bSErez Shitrit } 159c1048affSErez Shitrit 16081668838SSean Hefty /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 16181668838SSean Hefty struct ipoib_mcast { 16281668838SSean Hefty struct ib_sa_mcmember_rec mcmember; 16381668838SSean Hefty struct ib_sa_multicast *mc; 16481668838SSean Hefty struct ipoib_ah *ah; 16581668838SSean Hefty 16681668838SSean Hefty struct rb_node rb_node; 16781668838SSean Hefty struct list_head list; 16881668838SSean Hefty 16981668838SSean Hefty unsigned long created; 17081668838SSean Hefty unsigned long backoff; 17169911416SDoug Ledford unsigned long delay_until; 17281668838SSean Hefty 17381668838SSean Hefty unsigned long flags; 17481668838SSean Hefty unsigned char logcount; 17581668838SSean Hefty 17681668838SSean Hefty struct list_head neigh_list; 17781668838SSean Hefty 17881668838SSean Hefty struct sk_buff_head pkt_queue; 17981668838SSean Hefty 18081668838SSean Hefty struct net_device *dev; 181a9c8ba58SErez Shitrit struct completion done; 18281668838SSean Hefty }; 1831da177e4SLinus Torvalds 1841993d683SRoland Dreier struct ipoib_rx_buf { 1851993d683SRoland Dreier struct sk_buff *skb; 186bc7b3a36SShirley Ma u64 mapping[IPOIB_UD_RX_SG]; 1871993d683SRoland Dreier }; 1881993d683SRoland Dreier 1891993d683SRoland Dreier struct ipoib_tx_buf { 1901da177e4SLinus Torvalds struct sk_buff *skb; 1917143740dSEli Cohen u64 mapping[MAX_SKB_FRAGS + 1]; 1921da177e4SLinus Torvalds }; 1931da177e4SLinus Torvalds 194839fcabaSMichael S. Tsirkin struct ib_cm_id; 195839fcabaSMichael S. Tsirkin 196839fcabaSMichael S. Tsirkin struct ipoib_cm_data { 197839fcabaSMichael S. Tsirkin __be32 qpn; /* High byte MUST be ignored on receive */ 198839fcabaSMichael S. Tsirkin __be32 mtu; 199839fcabaSMichael S. Tsirkin }; 200839fcabaSMichael S. Tsirkin 201518b1646SMichael S. Tsirkin /* 202518b1646SMichael S. Tsirkin * Quoting 10.3.1 Queue Pair and EE Context States: 203518b1646SMichael S. Tsirkin * 204518b1646SMichael S. Tsirkin * Note, for QPs that are associated with an SRQ, the Consumer should take the 205518b1646SMichael S. Tsirkin * QP through the Error State before invoking a Destroy QP or a Modify QP to the 206518b1646SMichael S. Tsirkin * Reset State. The Consumer may invoke the Destroy QP without first performing 207518b1646SMichael S. Tsirkin * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 208518b1646SMichael S. Tsirkin * Last WQE Reached Event. However, if the Consumer does not wait for the 209518b1646SMichael S. Tsirkin * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 210518b1646SMichael S. Tsirkin * leakage may occur. Therefore, it is good programming practice to tear down a 211518b1646SMichael S. Tsirkin * QP that is associated with an SRQ by using the following process: 212518b1646SMichael S. Tsirkin * 213518b1646SMichael S. Tsirkin * - Put the QP in the Error State 214518b1646SMichael S. Tsirkin * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 215518b1646SMichael S. Tsirkin * - either: 216518b1646SMichael S. Tsirkin * drain the CQ by invoking the Poll CQ verb and either wait for CQ 217518b1646SMichael S. Tsirkin * to be empty or the number of Poll CQ operations has exceeded 218518b1646SMichael S. Tsirkin * CQ capacity size; 219518b1646SMichael S. Tsirkin * - or 220518b1646SMichael S. Tsirkin * post another WR that completes on the same CQ and wait for this 221518b1646SMichael S. Tsirkin * WR to return as a WC; 222518b1646SMichael S. Tsirkin * - and then invoke a Destroy QP or Reset QP. 223518b1646SMichael S. Tsirkin * 224518b1646SMichael S. Tsirkin * We use the second option and wait for a completion on the 225ec56dc0bSMichael S. Tsirkin * same CQ before destroying QPs attached to our SRQ. 226518b1646SMichael S. Tsirkin */ 227518b1646SMichael S. Tsirkin 228518b1646SMichael S. Tsirkin enum ipoib_cm_state { 229518b1646SMichael S. Tsirkin IPOIB_CM_RX_LIVE, 230518b1646SMichael S. Tsirkin IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 231518b1646SMichael S. Tsirkin IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 232518b1646SMichael S. Tsirkin }; 233518b1646SMichael S. Tsirkin 234839fcabaSMichael S. Tsirkin struct ipoib_cm_rx { 235839fcabaSMichael S. Tsirkin struct ib_cm_id *id; 236839fcabaSMichael S. Tsirkin struct ib_qp *qp; 23768e995a2SPradeep Satyanarayana struct ipoib_cm_rx_buf *rx_ring; 238839fcabaSMichael S. Tsirkin struct list_head list; 239839fcabaSMichael S. Tsirkin struct net_device *dev; 240839fcabaSMichael S. Tsirkin unsigned long jiffies; 241518b1646SMichael S. Tsirkin enum ipoib_cm_state state; 24268e995a2SPradeep Satyanarayana int recv_count; 243839fcabaSMichael S. Tsirkin }; 244839fcabaSMichael S. Tsirkin 245839fcabaSMichael S. Tsirkin struct ipoib_cm_tx { 246839fcabaSMichael S. Tsirkin struct ib_cm_id *id; 247839fcabaSMichael S. Tsirkin struct ib_qp *qp; 248839fcabaSMichael S. Tsirkin struct list_head list; 249839fcabaSMichael S. Tsirkin struct net_device *dev; 250839fcabaSMichael S. Tsirkin struct ipoib_neigh *neigh; 251c4268778SYuval Shaia struct ipoib_tx_buf *tx_ring; 2520578cdadSKamal Heib unsigned int tx_head; 2530578cdadSKamal Heib unsigned int tx_tail; 254839fcabaSMichael S. Tsirkin unsigned long flags; 255839fcabaSMichael S. Tsirkin u32 mtu; 2560578cdadSKamal Heib unsigned int max_send_sge; 257839fcabaSMichael S. Tsirkin }; 258839fcabaSMichael S. Tsirkin 259839fcabaSMichael S. Tsirkin struct ipoib_cm_rx_buf { 260839fcabaSMichael S. Tsirkin struct sk_buff *skb; 261839fcabaSMichael S. Tsirkin u64 mapping[IPOIB_CM_RX_SG]; 262839fcabaSMichael S. Tsirkin }; 263839fcabaSMichael S. Tsirkin 264839fcabaSMichael S. Tsirkin struct ipoib_cm_dev_priv { 265839fcabaSMichael S. Tsirkin struct ib_srq *srq; 266839fcabaSMichael S. Tsirkin struct ipoib_cm_rx_buf *srq_ring; 267839fcabaSMichael S. Tsirkin struct ib_cm_id *id; 268518b1646SMichael S. Tsirkin struct list_head passive_ids; /* state: LIVE */ 269518b1646SMichael S. Tsirkin struct list_head rx_error_list; /* state: ERROR */ 270518b1646SMichael S. Tsirkin struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 271518b1646SMichael S. Tsirkin struct list_head rx_drain_list; /* state: FLUSH, drain started */ 272518b1646SMichael S. Tsirkin struct list_head rx_reap_list; /* state: FLUSH, drain done */ 273839fcabaSMichael S. Tsirkin struct work_struct start_task; 274839fcabaSMichael S. Tsirkin struct work_struct reap_task; 275839fcabaSMichael S. Tsirkin struct work_struct skb_task; 276518b1646SMichael S. Tsirkin struct work_struct rx_reap_task; 277839fcabaSMichael S. Tsirkin struct delayed_work stale_task; 278839fcabaSMichael S. Tsirkin struct sk_buff_head skb_queue; 279839fcabaSMichael S. Tsirkin struct list_head start_list; 280839fcabaSMichael S. Tsirkin struct list_head reap_list; 281839fcabaSMichael S. Tsirkin struct ib_wc ibwc[IPOIB_NUM_WC]; 282839fcabaSMichael S. Tsirkin struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 283839fcabaSMichael S. Tsirkin struct ib_recv_wr rx_wr; 28468e995a2SPradeep Satyanarayana int nonsrq_conn_qp; 285586a6934SPradeep Satyanarayana int max_cm_mtu; 286586a6934SPradeep Satyanarayana int num_frags; 287839fcabaSMichael S. Tsirkin }; 288839fcabaSMichael S. Tsirkin 28928d52b3cSEli Cohen struct ipoib_ethtool_st { 29028d52b3cSEli Cohen u16 coalesce_usecs; 29128d52b3cSEli Cohen u16 max_coalesced_frames; 29228d52b3cSEli Cohen }; 29328d52b3cSEli Cohen 29466172c09SShlomo Pongratz struct ipoib_neigh_table; 29566172c09SShlomo Pongratz 296b63b70d8SShlomo Pongratz struct ipoib_neigh_hash { 29766172c09SShlomo Pongratz struct ipoib_neigh_table *ntbl; 298b63b70d8SShlomo Pongratz struct ipoib_neigh __rcu **buckets; 299b63b70d8SShlomo Pongratz struct rcu_head rcu; 300b63b70d8SShlomo Pongratz u32 mask; 301b63b70d8SShlomo Pongratz u32 size; 302b63b70d8SShlomo Pongratz }; 303b63b70d8SShlomo Pongratz 304b63b70d8SShlomo Pongratz struct ipoib_neigh_table { 305b63b70d8SShlomo Pongratz struct ipoib_neigh_hash __rcu *htbl; 306b63b70d8SShlomo Pongratz atomic_t entries; 307b63b70d8SShlomo Pongratz struct completion flushed; 30866172c09SShlomo Pongratz struct completion deleted; 309b63b70d8SShlomo Pongratz }; 310b63b70d8SShlomo Pongratz 3112c010730SErez Shitrit struct ipoib_qp_state_validate { 3122c010730SErez Shitrit struct work_struct work; 3132c010730SErez Shitrit struct ipoib_dev_priv *priv; 3142c010730SErez Shitrit }; 3152c010730SErez Shitrit 3161da177e4SLinus Torvalds /* 317943c246eSRoland Dreier * Device private locking: network stack tx_lock protects members used 318943c246eSRoland Dreier * in TX fast path, lock protects everything else. lock nests inside 319943c246eSRoland Dreier * of tx_lock (ie tx_lock must be acquired first if needed). 3201da177e4SLinus Torvalds */ 3211da177e4SLinus Torvalds struct ipoib_dev_priv { 3221da177e4SLinus Torvalds spinlock_t lock; 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvalds struct net_device *dev; 3259f49a5b5SJason Gunthorpe void (*next_priv_destructor)(struct net_device *dev); 3261da177e4SLinus Torvalds 3278966e28dSErez Shitrit struct napi_struct send_napi; 3288966e28dSErez Shitrit struct napi_struct recv_napi; 329bea3348eSStephen Hemminger 3301da177e4SLinus Torvalds unsigned long flags; 3311da177e4SLinus Torvalds 33225405d98SJason Gunthorpe /* 33325405d98SJason Gunthorpe * This protects access to the child_intfs list. 33425405d98SJason Gunthorpe * To READ from child_intfs the RTNL or vlan_rwsem read side must be 33525405d98SJason Gunthorpe * held. To WRITE RTNL and the vlan_rwsem write side must be held (in 33625405d98SJason Gunthorpe * that order) This lock exists because we have a few contexts where 33725405d98SJason Gunthorpe * we need the child_intfs, but do not want to grab the RTNL. 33825405d98SJason Gunthorpe */ 339f47944ccSErez Shitrit struct rw_semaphore vlan_rwsem; 340edf3f301SFeras Daoud struct mutex mcast_mutex; 3411da177e4SLinus Torvalds 3421da177e4SLinus Torvalds struct rb_root path_tree; 3431da177e4SLinus Torvalds struct list_head path_list; 3441da177e4SLinus Torvalds 345b63b70d8SShlomo Pongratz struct ipoib_neigh_table ntbl; 346b63b70d8SShlomo Pongratz 3471da177e4SLinus Torvalds struct ipoib_mcast *broadcast; 3481da177e4SLinus Torvalds struct list_head multicast_list; 3491da177e4SLinus Torvalds struct rb_root multicast_tree; 3501da177e4SLinus Torvalds 3510b39578bSDoug Ledford struct workqueue_struct *wq; 352c4028958SDavid Howells struct delayed_work mcast_task; 353e8224e4bSYossi Etigin struct work_struct carrier_on_task; 354ee1e2c82SMoni Shoua struct work_struct flush_light; 355ee1e2c82SMoni Shoua struct work_struct flush_normal; 356ee1e2c82SMoni Shoua struct work_struct flush_heavy; 3571da177e4SLinus Torvalds struct work_struct restart_task; 358c4028958SDavid Howells struct delayed_work ah_reap_task; 359b63b70d8SShlomo Pongratz struct delayed_work neigh_reap_task; 3601da177e4SLinus Torvalds struct ib_device *ca; 3611da177e4SLinus Torvalds u8 port; 3621da177e4SLinus Torvalds u16 pkey; 36326bbf13cSYosef Etigin u16 pkey_index; 3641da177e4SLinus Torvalds struct ib_pd *pd; 365f56bcd80SEli Cohen struct ib_cq *recv_cq; 366f56bcd80SEli Cohen struct ib_cq *send_cq; 3671da177e4SLinus Torvalds struct ib_qp *qp; 3681da177e4SLinus Torvalds u32 qkey; 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds union ib_gid local_gid; 3717e93e2cbSDasaratharaman Chandramouli u32 local_lid; 3721da177e4SLinus Torvalds 3731da177e4SLinus Torvalds unsigned int admin_mtu; 3741da177e4SLinus Torvalds unsigned int mcast_mtu; 375bc7b3a36SShirley Ma unsigned int max_ib_mtu; 3761da177e4SLinus Torvalds 3771993d683SRoland Dreier struct ipoib_rx_buf *rx_ring; 3781da177e4SLinus Torvalds 3791993d683SRoland Dreier struct ipoib_tx_buf *tx_ring; 380*1acba6a8SValentine Fatiev /* cyclic ring variables for managing tx_ring, for UD only */ 3810578cdadSKamal Heib unsigned int tx_head; 3820578cdadSKamal Heib unsigned int tx_tail; 383*1acba6a8SValentine Fatiev /* cyclic ring variables for counting overall outstanding send WRs */ 384*1acba6a8SValentine Fatiev unsigned int global_tx_head; 385*1acba6a8SValentine Fatiev unsigned int global_tx_tail; 3867143740dSEli Cohen struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 387e622f2f4SChristoph Hellwig struct ib_ud_wr tx_wr; 388f56bcd80SEli Cohen struct ib_wc send_wc[MAX_SEND_CQE]; 3891da177e4SLinus Torvalds 390bc7b3a36SShirley Ma struct ib_recv_wr rx_wr; 391bc7b3a36SShirley Ma struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 392bc7b3a36SShirley Ma 3931da177e4SLinus Torvalds struct ib_wc ibwc[IPOIB_NUM_WC]; 3941da177e4SLinus Torvalds 3951da177e4SLinus Torvalds struct list_head dead_ahs; 3961da177e4SLinus Torvalds 3971da177e4SLinus Torvalds struct ib_event_handler event_handler; 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds struct net_device *parent; 4001da177e4SLinus Torvalds struct list_head child_intfs; 4011da177e4SLinus Torvalds struct list_head list; 4029baa0b03SOr Gerlitz int child_type; 4031da177e4SLinus Torvalds 404839fcabaSMichael S. Tsirkin #ifdef CONFIG_INFINIBAND_IPOIB_CM 405839fcabaSMichael S. Tsirkin struct ipoib_cm_dev_priv cm; 406839fcabaSMichael S. Tsirkin #endif 407839fcabaSMichael S. Tsirkin 4081da177e4SLinus Torvalds #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 4091da177e4SLinus Torvalds struct list_head fs_list; 4101da177e4SLinus Torvalds struct dentry *mcg_dentry; 4111732b0efSRoland Dreier struct dentry *path_dentry; 4121da177e4SLinus Torvalds #endif 413fb532d6aSLeon Romanovsky u64 hca_caps; 41428d52b3cSEli Cohen struct ipoib_ethtool_st ethtool; 4150578cdadSKamal Heib unsigned int max_send_sge; 4163b561130SErez Shitrit bool sm_fullmember_sendonly_support; 417cd565b4bSErez Shitrit const struct net_device_ops *rn_ops; 4181da177e4SLinus Torvalds }; 4191da177e4SLinus Torvalds 4201da177e4SLinus Torvalds struct ipoib_ah { 4211da177e4SLinus Torvalds struct net_device *dev; 4221da177e4SLinus Torvalds struct ib_ah *ah; 4231da177e4SLinus Torvalds struct list_head list; 4241da177e4SLinus Torvalds struct kref ref; 4250578cdadSKamal Heib unsigned int last_send; 426fa9391dbSDoug Ledford int valid; 4271da177e4SLinus Torvalds }; 4281da177e4SLinus Torvalds 4291da177e4SLinus Torvalds struct ipoib_path { 4301da177e4SLinus Torvalds struct net_device *dev; 431c2f8fc4eSDasaratharaman Chandramouli struct sa_path_rec pathrec; 4321da177e4SLinus Torvalds struct ipoib_ah *ah; 4331da177e4SLinus Torvalds struct sk_buff_head queue; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds struct list_head neigh_list; 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds int query_id; 4381da177e4SLinus Torvalds struct ib_sa_query *query; 4391da177e4SLinus Torvalds struct completion done; 4401da177e4SLinus Torvalds 4411da177e4SLinus Torvalds struct rb_node rb_node; 4421da177e4SLinus Torvalds struct list_head list; 4431da177e4SLinus Torvalds }; 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds struct ipoib_neigh { 4461da177e4SLinus Torvalds struct ipoib_ah *ah; 447839fcabaSMichael S. Tsirkin #ifdef CONFIG_INFINIBAND_IPOIB_CM 448839fcabaSMichael S. Tsirkin struct ipoib_cm_tx *cm; 449839fcabaSMichael S. Tsirkin #endif 450b63b70d8SShlomo Pongratz u8 daddr[INFINIBAND_ALEN]; 4511da177e4SLinus Torvalds struct sk_buff_head queue; 4521da177e4SLinus Torvalds 453732a2170SMoni Shoua struct net_device *dev; 4541da177e4SLinus Torvalds 4551da177e4SLinus Torvalds struct list_head list; 456b63b70d8SShlomo Pongratz struct ipoib_neigh __rcu *hnext; 457b63b70d8SShlomo Pongratz struct rcu_head rcu; 458b63b70d8SShlomo Pongratz atomic_t refcnt; 459b63b70d8SShlomo Pongratz unsigned long alive; 4601da177e4SLinus Torvalds }; 4611da177e4SLinus Torvalds 462bc7b3a36SShirley Ma #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 463bc7b3a36SShirley Ma #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) 464bc7b3a36SShirley Ma 465b63b70d8SShlomo Pongratz void ipoib_neigh_dtor(struct ipoib_neigh *neigh); 466b63b70d8SShlomo Pongratz static inline void ipoib_neigh_put(struct ipoib_neigh *neigh) 4671da177e4SLinus Torvalds { 468b63b70d8SShlomo Pongratz if (atomic_dec_and_test(&neigh->refcnt)) 469b63b70d8SShlomo Pongratz ipoib_neigh_dtor(neigh); 4701da177e4SLinus Torvalds } 471b63b70d8SShlomo Pongratz struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr); 472b63b70d8SShlomo Pongratz struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, 473732a2170SMoni Shoua struct net_device *dev); 474b63b70d8SShlomo Pongratz void ipoib_neigh_free(struct ipoib_neigh *neigh); 475b63b70d8SShlomo Pongratz void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid); 476d2e0655eSMichael S. Tsirkin 4771da177e4SLinus Torvalds extern struct workqueue_struct *ipoib_workqueue; 4781da177e4SLinus Torvalds 4791da177e4SLinus Torvalds /* functions */ 4801da177e4SLinus Torvalds 4818966e28dSErez Shitrit int ipoib_rx_poll(struct napi_struct *napi, int budget); 4828966e28dSErez Shitrit int ipoib_tx_poll(struct napi_struct *napi, int budget); 4838966e28dSErez Shitrit void ipoib_ib_rx_completion(struct ib_cq *cq, void *ctx_ptr); 4848966e28dSErez Shitrit void ipoib_ib_tx_completion(struct ib_cq *cq, void *ctx_ptr); 4851da177e4SLinus Torvalds 4861da177e4SLinus Torvalds struct ipoib_ah *ipoib_create_ah(struct net_device *dev, 48790898850SDasaratharaman Chandramouli struct ib_pd *pd, struct rdma_ah_attr *attr); 4881da177e4SLinus Torvalds void ipoib_free_ah(struct kref *kref); 4891da177e4SLinus Torvalds static inline void ipoib_put_ah(struct ipoib_ah *ah) 4901da177e4SLinus Torvalds { 4911da177e4SLinus Torvalds kref_put(&ah->ref, ipoib_free_ah); 4921da177e4SLinus Torvalds } 4938ae5a8a2SRoland Dreier int ipoib_open(struct net_device *dev); 4949f49a5b5SJason Gunthorpe void ipoib_intf_free(struct net_device *dev); 4951da177e4SLinus Torvalds int ipoib_add_pkey_attr(struct net_device *dev); 496335a64a5SOr Gerlitz int ipoib_add_umcast_attr(struct net_device *dev); 4971da177e4SLinus Torvalds 498cd565b4bSErez Shitrit int ipoib_send(struct net_device *dev, struct sk_buff *skb, 499cd565b4bSErez Shitrit struct ib_ah *address, u32 dqpn); 500c4028958SDavid Howells void ipoib_reap_ah(struct work_struct *work); 5011da177e4SLinus Torvalds 502546481c2SErez Shitrit struct ipoib_path *__path_find(struct net_device *dev, void *gid); 503ee1e2c82SMoni Shoua void ipoib_mark_paths_invalid(struct net_device *dev); 5041da177e4SLinus Torvalds void ipoib_flush_paths(struct net_device *dev); 5055d6b0cb3SDenis Drozdov struct net_device *ipoib_intf_alloc(struct ib_device *hca, u8 port, 506cd565b4bSErez Shitrit const char *format); 5075d6b0cb3SDenis Drozdov int ipoib_intf_init(struct ib_device *hca, u8 port, const char *format, 5085d6b0cb3SDenis Drozdov struct net_device *dev); 5096d290d69SKees Cook void ipoib_ib_tx_timer_func(struct timer_list *t); 510ee1e2c82SMoni Shoua void ipoib_ib_dev_flush_light(struct work_struct *work); 511ee1e2c82SMoni Shoua void ipoib_ib_dev_flush_normal(struct work_struct *work); 512ee1e2c82SMoni Shoua void ipoib_ib_dev_flush_heavy(struct work_struct *work); 51326bbf13cSYosef Etigin void ipoib_pkey_event(struct work_struct *work); 5141da177e4SLinus Torvalds void ipoib_ib_dev_cleanup(struct net_device *dev); 5151da177e4SLinus Torvalds 516cd565b4bSErez Shitrit int ipoib_ib_dev_open_default(struct net_device *dev); 517efc82eeeSDoug Ledford int ipoib_ib_dev_open(struct net_device *dev); 518cd565b4bSErez Shitrit int ipoib_ib_dev_stop(struct net_device *dev); 5195c37077fSZhu Yanjun void ipoib_ib_dev_up(struct net_device *dev); 520dfc0e555SZhu Yanjun void ipoib_ib_dev_down(struct net_device *dev); 5217ce1a3eeSErez Shitrit int ipoib_ib_dev_stop_default(struct net_device *dev); 522db84f880SErez Shitrit void ipoib_pkey_dev_check_presence(struct net_device *dev); 5231da177e4SLinus Torvalds 524c4028958SDavid Howells void ipoib_mcast_join_task(struct work_struct *work); 525e8224e4bSYossi Etigin void ipoib_mcast_carrier_on_task(struct work_struct *work); 526b63b70d8SShlomo Pongratz void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); 5271da177e4SLinus Torvalds 528c4028958SDavid Howells void ipoib_mcast_restart_task(struct work_struct *work); 5295c37077fSZhu Yanjun void ipoib_mcast_start_thread(struct net_device *dev); 530efc82eeeSDoug Ledford int ipoib_mcast_stop_thread(struct net_device *dev); 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds void ipoib_mcast_dev_down(struct net_device *dev); 5331da177e4SLinus Torvalds void ipoib_mcast_dev_flush(struct net_device *dev); 5341da177e4SLinus Torvalds 535c4268778SYuval Shaia int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req); 536c4268778SYuval Shaia void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv, 537c4268778SYuval Shaia struct ipoib_tx_buf *tx_req); 538c4268778SYuval Shaia 5395d6b0cb3SDenis Drozdov struct rtnl_link_ops *ipoib_get_link_ops(void); 5405d6b0cb3SDenis Drozdov 541c4268778SYuval Shaia static inline void ipoib_build_sge(struct ipoib_dev_priv *priv, 542c4268778SYuval Shaia struct ipoib_tx_buf *tx_req) 543c4268778SYuval Shaia { 544c4268778SYuval Shaia int i, off; 545c4268778SYuval Shaia struct sk_buff *skb = tx_req->skb; 546c4268778SYuval Shaia skb_frag_t *frags = skb_shinfo(skb)->frags; 547c4268778SYuval Shaia int nr_frags = skb_shinfo(skb)->nr_frags; 548c4268778SYuval Shaia u64 *mapping = tx_req->mapping; 549c4268778SYuval Shaia 550c4268778SYuval Shaia if (skb_headlen(skb)) { 551c4268778SYuval Shaia priv->tx_sge[0].addr = mapping[0]; 552c4268778SYuval Shaia priv->tx_sge[0].length = skb_headlen(skb); 553c4268778SYuval Shaia off = 1; 554c4268778SYuval Shaia } else 555c4268778SYuval Shaia off = 0; 556c4268778SYuval Shaia 557c4268778SYuval Shaia for (i = 0; i < nr_frags; ++i) { 558c4268778SYuval Shaia priv->tx_sge[i + off].addr = mapping[i + off]; 559c4268778SYuval Shaia priv->tx_sge[i + off].length = skb_frag_size(&frags[i]); 560c4268778SYuval Shaia } 561e622f2f4SChristoph Hellwig priv->tx_wr.wr.num_sge = nr_frags + off; 562c4268778SYuval Shaia } 563c4268778SYuval Shaia 5648ae5a8a2SRoland Dreier #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 5651da177e4SLinus Torvalds struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 5661da177e4SLinus Torvalds int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 5671da177e4SLinus Torvalds void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 5681da177e4SLinus Torvalds union ib_gid *gid, 5691da177e4SLinus Torvalds unsigned long *created, 5701da177e4SLinus Torvalds unsigned int *queuelen, 5711da177e4SLinus Torvalds unsigned int *complete, 5721da177e4SLinus Torvalds unsigned int *send_only); 5731732b0efSRoland Dreier 5741732b0efSRoland Dreier struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); 5751732b0efSRoland Dreier int ipoib_path_iter_next(struct ipoib_path_iter *iter); 5761732b0efSRoland Dreier void ipoib_path_iter_read(struct ipoib_path_iter *iter, 5771732b0efSRoland Dreier struct ipoib_path *path); 5788ae5a8a2SRoland Dreier #endif 5791da177e4SLinus Torvalds 580cd565b4bSErez Shitrit int ipoib_mcast_attach(struct net_device *dev, struct ib_device *hca, 581cd565b4bSErez Shitrit union ib_gid *mgid, u16 mlid, int set_qkey, u32 qkey); 582cd565b4bSErez Shitrit int ipoib_mcast_detach(struct net_device *dev, struct ib_device *hca, 583cd565b4bSErez Shitrit union ib_gid *mgid, u16 mlid); 58450be28deSErez Shitrit void ipoib_mcast_remove_list(struct list_head *remove_list); 585432c55ffSChristoph Lameter void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid, 586432c55ffSChristoph Lameter struct list_head *remove_list); 5871da177e4SLinus Torvalds 5885b6810e0SRoland Dreier int ipoib_init_qp(struct net_device *dev); 5891da177e4SLinus Torvalds int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); 5901da177e4SLinus Torvalds void ipoib_transport_dev_cleanup(struct net_device *dev); 5911da177e4SLinus Torvalds 5921da177e4SLinus Torvalds void ipoib_event(struct ib_event_handler *handler, 5931da177e4SLinus Torvalds struct ib_event *record); 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); 5961da177e4SLinus Torvalds int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); 5971da177e4SLinus Torvalds 5989baa0b03SOr Gerlitz int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, 5999baa0b03SOr Gerlitz u16 pkey, int child_type); 6009baa0b03SOr Gerlitz 6019baa0b03SOr Gerlitz int __init ipoib_netlink_init(void); 6029baa0b03SOr Gerlitz void __exit ipoib_netlink_fini(void); 6039baa0b03SOr Gerlitz 604862096a8SOr Gerlitz void ipoib_set_umcast(struct net_device *ndev, int umcast_val); 605862096a8SOr Gerlitz int ipoib_set_mode(struct net_device *dev, const char *buf); 606862096a8SOr Gerlitz 607cd565b4bSErez Shitrit void ipoib_setup_common(struct net_device *dev); 6089baa0b03SOr Gerlitz 609db84f880SErez Shitrit void ipoib_pkey_open(struct ipoib_dev_priv *priv); 6102dfbfc37SMichael S. Tsirkin void ipoib_drain_cq(struct net_device *dev); 6111da177e4SLinus Torvalds 61282c24c18SEli Cohen void ipoib_set_ethtool_ops(struct net_device *dev); 61382c24c18SEli Cohen 614839fcabaSMichael S. Tsirkin #define IPOIB_FLAGS_RC 0x80 615839fcabaSMichael S. Tsirkin #define IPOIB_FLAGS_UC 0x40 616839fcabaSMichael S. Tsirkin 617839fcabaSMichael S. Tsirkin /* We don't support UC connections at the moment */ 618839fcabaSMichael S. Tsirkin #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 619839fcabaSMichael S. Tsirkin 62071d9c5f9SRoland Dreier #ifdef CONFIG_INFINIBAND_IPOIB_CM 62171d9c5f9SRoland Dreier 62268e995a2SPradeep Satyanarayana extern int ipoib_max_conn_qp; 62368e995a2SPradeep Satyanarayana 624839fcabaSMichael S. Tsirkin static inline int ipoib_cm_admin_enabled(struct net_device *dev) 625839fcabaSMichael S. Tsirkin { 626c1048affSErez Shitrit struct ipoib_dev_priv *priv = ipoib_priv(dev); 627839fcabaSMichael S. Tsirkin return IPOIB_CM_SUPPORTED(dev->dev_addr) && 628839fcabaSMichael S. Tsirkin test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 629839fcabaSMichael S. Tsirkin } 630839fcabaSMichael S. Tsirkin 631b63b70d8SShlomo Pongratz static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) 632839fcabaSMichael S. Tsirkin { 633c1048affSErez Shitrit struct ipoib_dev_priv *priv = ipoib_priv(dev); 634b63b70d8SShlomo Pongratz return IPOIB_CM_SUPPORTED(hwaddr) && 635839fcabaSMichael S. Tsirkin test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 636839fcabaSMichael S. Tsirkin } 637839fcabaSMichael S. Tsirkin 638839fcabaSMichael S. Tsirkin static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 639839fcabaSMichael S. Tsirkin 640839fcabaSMichael S. Tsirkin { 641839fcabaSMichael S. Tsirkin return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); 642839fcabaSMichael S. Tsirkin } 643839fcabaSMichael S. Tsirkin 644839fcabaSMichael S. Tsirkin static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 645839fcabaSMichael S. Tsirkin { 646839fcabaSMichael S. Tsirkin return neigh->cm; 647839fcabaSMichael S. Tsirkin } 648839fcabaSMichael S. Tsirkin 649839fcabaSMichael S. Tsirkin static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 650839fcabaSMichael S. Tsirkin { 651839fcabaSMichael S. Tsirkin neigh->cm = tx; 652839fcabaSMichael S. Tsirkin } 653839fcabaSMichael S. Tsirkin 65468e995a2SPradeep Satyanarayana static inline int ipoib_cm_has_srq(struct net_device *dev) 65568e995a2SPradeep Satyanarayana { 656c1048affSErez Shitrit struct ipoib_dev_priv *priv = ipoib_priv(dev); 65768e995a2SPradeep Satyanarayana return !!priv->cm.srq; 65868e995a2SPradeep Satyanarayana } 65968e995a2SPradeep Satyanarayana 660586a6934SPradeep Satyanarayana static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 661586a6934SPradeep Satyanarayana { 662c1048affSErez Shitrit struct ipoib_dev_priv *priv = ipoib_priv(dev); 663586a6934SPradeep Satyanarayana return priv->cm.max_cm_mtu; 664586a6934SPradeep Satyanarayana } 665586a6934SPradeep Satyanarayana 666839fcabaSMichael S. Tsirkin void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); 667839fcabaSMichael S. Tsirkin int ipoib_cm_dev_open(struct net_device *dev); 668839fcabaSMichael S. Tsirkin void ipoib_cm_dev_stop(struct net_device *dev); 669839fcabaSMichael S. Tsirkin int ipoib_cm_dev_init(struct net_device *dev); 670839fcabaSMichael S. Tsirkin int ipoib_cm_add_mode_attr(struct net_device *dev); 671839fcabaSMichael S. Tsirkin void ipoib_cm_dev_cleanup(struct net_device *dev); 672839fcabaSMichael S. Tsirkin struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 673839fcabaSMichael S. Tsirkin struct ipoib_neigh *neigh); 674839fcabaSMichael S. Tsirkin void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 675839fcabaSMichael S. Tsirkin void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 676839fcabaSMichael S. Tsirkin unsigned int mtu); 677839fcabaSMichael S. Tsirkin void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 6781b524963SMichael S. Tsirkin void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 679839fcabaSMichael S. Tsirkin #else 680839fcabaSMichael S. Tsirkin 681839fcabaSMichael S. Tsirkin struct ipoib_cm_tx; 682839fcabaSMichael S. Tsirkin 68368e995a2SPradeep Satyanarayana #define ipoib_max_conn_qp 0 68468e995a2SPradeep Satyanarayana 685839fcabaSMichael S. Tsirkin static inline int ipoib_cm_admin_enabled(struct net_device *dev) 686839fcabaSMichael S. Tsirkin { 687839fcabaSMichael S. Tsirkin return 0; 688839fcabaSMichael S. Tsirkin } 689b63b70d8SShlomo Pongratz static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) 690839fcabaSMichael S. Tsirkin 691839fcabaSMichael S. Tsirkin { 692839fcabaSMichael S. Tsirkin return 0; 693839fcabaSMichael S. Tsirkin } 694839fcabaSMichael S. Tsirkin 695839fcabaSMichael S. Tsirkin static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 696839fcabaSMichael S. Tsirkin 697839fcabaSMichael S. Tsirkin { 698839fcabaSMichael S. Tsirkin return 0; 699839fcabaSMichael S. Tsirkin } 700839fcabaSMichael S. Tsirkin 701839fcabaSMichael S. Tsirkin static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 702839fcabaSMichael S. Tsirkin { 703839fcabaSMichael S. Tsirkin return NULL; 704839fcabaSMichael S. Tsirkin } 705839fcabaSMichael S. Tsirkin 706839fcabaSMichael S. Tsirkin static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 707839fcabaSMichael S. Tsirkin { 708839fcabaSMichael S. Tsirkin } 709839fcabaSMichael S. Tsirkin 71068e995a2SPradeep Satyanarayana static inline int ipoib_cm_has_srq(struct net_device *dev) 71168e995a2SPradeep Satyanarayana { 71268e995a2SPradeep Satyanarayana return 0; 71368e995a2SPradeep Satyanarayana } 71468e995a2SPradeep Satyanarayana 715586a6934SPradeep Satyanarayana static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 716586a6934SPradeep Satyanarayana { 717586a6934SPradeep Satyanarayana return 0; 718586a6934SPradeep Satyanarayana } 719586a6934SPradeep Satyanarayana 720839fcabaSMichael S. Tsirkin static inline 721839fcabaSMichael S. Tsirkin void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) 722839fcabaSMichael S. Tsirkin { 723839fcabaSMichael S. Tsirkin return; 724839fcabaSMichael S. Tsirkin } 725839fcabaSMichael S. Tsirkin 726839fcabaSMichael S. Tsirkin static inline 727839fcabaSMichael S. Tsirkin int ipoib_cm_dev_open(struct net_device *dev) 728839fcabaSMichael S. Tsirkin { 729839fcabaSMichael S. Tsirkin return 0; 730839fcabaSMichael S. Tsirkin } 731839fcabaSMichael S. Tsirkin 732839fcabaSMichael S. Tsirkin static inline 733839fcabaSMichael S. Tsirkin void ipoib_cm_dev_stop(struct net_device *dev) 734839fcabaSMichael S. Tsirkin { 735839fcabaSMichael S. Tsirkin return; 736839fcabaSMichael S. Tsirkin } 737839fcabaSMichael S. Tsirkin 738839fcabaSMichael S. Tsirkin static inline 739839fcabaSMichael S. Tsirkin int ipoib_cm_dev_init(struct net_device *dev) 740839fcabaSMichael S. Tsirkin { 7413fda2432SKamal Heib return -EOPNOTSUPP; 742839fcabaSMichael S. Tsirkin } 743839fcabaSMichael S. Tsirkin 744839fcabaSMichael S. Tsirkin static inline 745839fcabaSMichael S. Tsirkin void ipoib_cm_dev_cleanup(struct net_device *dev) 746839fcabaSMichael S. Tsirkin { 747839fcabaSMichael S. Tsirkin return; 748839fcabaSMichael S. Tsirkin } 749839fcabaSMichael S. Tsirkin 750839fcabaSMichael S. Tsirkin static inline 751839fcabaSMichael S. Tsirkin struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 752839fcabaSMichael S. Tsirkin struct ipoib_neigh *neigh) 753839fcabaSMichael S. Tsirkin { 754839fcabaSMichael S. Tsirkin return NULL; 755839fcabaSMichael S. Tsirkin } 756839fcabaSMichael S. Tsirkin 757839fcabaSMichael S. Tsirkin static inline 758839fcabaSMichael S. Tsirkin void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 759839fcabaSMichael S. Tsirkin { 760839fcabaSMichael S. Tsirkin return; 761839fcabaSMichael S. Tsirkin } 762839fcabaSMichael S. Tsirkin 763839fcabaSMichael S. Tsirkin static inline 764839fcabaSMichael S. Tsirkin int ipoib_cm_add_mode_attr(struct net_device *dev) 765839fcabaSMichael S. Tsirkin { 766839fcabaSMichael S. Tsirkin return 0; 767839fcabaSMichael S. Tsirkin } 768839fcabaSMichael S. Tsirkin 769839fcabaSMichael S. Tsirkin static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 770839fcabaSMichael S. Tsirkin unsigned int mtu) 771839fcabaSMichael S. Tsirkin { 772839fcabaSMichael S. Tsirkin dev_kfree_skb_any(skb); 773839fcabaSMichael S. Tsirkin } 774839fcabaSMichael S. Tsirkin 775839fcabaSMichael S. Tsirkin static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 776839fcabaSMichael S. Tsirkin { 777839fcabaSMichael S. Tsirkin } 778839fcabaSMichael S. Tsirkin 7791b524963SMichael S. Tsirkin static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 7801b524963SMichael S. Tsirkin { 7811b524963SMichael S. Tsirkin } 782839fcabaSMichael S. Tsirkin #endif 783839fcabaSMichael S. Tsirkin 7841da177e4SLinus Torvalds #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 7851732b0efSRoland Dreier void ipoib_create_debug_files(struct net_device *dev); 7861732b0efSRoland Dreier void ipoib_delete_debug_files(struct net_device *dev); 7872e061c69SGreg Kroah-Hartman void ipoib_register_debugfs(void); 7881da177e4SLinus Torvalds void ipoib_unregister_debugfs(void); 7891da177e4SLinus Torvalds #else 7901732b0efSRoland Dreier static inline void ipoib_create_debug_files(struct net_device *dev) { } 7911732b0efSRoland Dreier static inline void ipoib_delete_debug_files(struct net_device *dev) { } 7922e061c69SGreg Kroah-Hartman static inline void ipoib_register_debugfs(void) { } 7931da177e4SLinus Torvalds static inline void ipoib_unregister_debugfs(void) { } 7941da177e4SLinus Torvalds #endif 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds #define ipoib_printk(level, priv, format, arg...) \ 7971da177e4SLinus Torvalds printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) 7981da177e4SLinus Torvalds #define ipoib_warn(priv, format, arg...) \ 79932f7451dSkernel@kyup.com do { \ 80032f7451dSkernel@kyup.com static DEFINE_RATELIMIT_STATE(_rs, \ 80132f7451dSkernel@kyup.com 10 * HZ /*10 seconds */, \ 80232f7451dSkernel@kyup.com 100); \ 80332f7451dSkernel@kyup.com if (__ratelimit(&_rs)) \ 80432f7451dSkernel@kyup.com ipoib_printk(KERN_WARNING, priv, format , ## arg);\ 80532f7451dSkernel@kyup.com } while (0) 8061da177e4SLinus Torvalds 8070f485251SShirley Ma extern int ipoib_sendq_size; 8080f485251SShirley Ma extern int ipoib_recvq_size; 8091da177e4SLinus Torvalds 810c1a0b23bSMichael S. Tsirkin extern struct ib_sa_client ipoib_sa_client; 811c1a0b23bSMichael S. Tsirkin 8121da177e4SLinus Torvalds #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 8131da177e4SLinus Torvalds extern int ipoib_debug_level; 8141da177e4SLinus Torvalds 8151da177e4SLinus Torvalds #define ipoib_dbg(priv, format, arg...) \ 8161da177e4SLinus Torvalds do { \ 8171da177e4SLinus Torvalds if (ipoib_debug_level > 0) \ 8181da177e4SLinus Torvalds ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 8191da177e4SLinus Torvalds } while (0) 8201da177e4SLinus Torvalds #define ipoib_dbg_mcast(priv, format, arg...) \ 8211da177e4SLinus Torvalds do { \ 8221da177e4SLinus Torvalds if (mcast_debug_level > 0) \ 8231da177e4SLinus Torvalds ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 8241da177e4SLinus Torvalds } while (0) 8251da177e4SLinus Torvalds #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 8261da177e4SLinus Torvalds #define ipoib_dbg(priv, format, arg...) \ 8271da177e4SLinus Torvalds do { (void) (priv); } while (0) 8281da177e4SLinus Torvalds #define ipoib_dbg_mcast(priv, format, arg...) \ 8291da177e4SLinus Torvalds do { (void) (priv); } while (0) 8301da177e4SLinus Torvalds #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 8311da177e4SLinus Torvalds 8321da177e4SLinus Torvalds #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 8331da177e4SLinus Torvalds #define ipoib_dbg_data(priv, format, arg...) \ 8341da177e4SLinus Torvalds do { \ 8351da177e4SLinus Torvalds if (data_debug_level > 0) \ 8361da177e4SLinus Torvalds ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 8371da177e4SLinus Torvalds } while (0) 8381da177e4SLinus Torvalds #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 8391da177e4SLinus Torvalds #define ipoib_dbg_data(priv, format, arg...) \ 8401da177e4SLinus Torvalds do { (void) (priv); } while (0) 8411da177e4SLinus Torvalds #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 8421da177e4SLinus Torvalds 843839fcabaSMichael S. Tsirkin #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 844839fcabaSMichael S. Tsirkin 8451da177e4SLinus Torvalds #endif /* _IPOIB_H */ 846