/*- * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 * * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. * Copyright (c) 2004 Voltaire, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef _IPOIB_H #define _IPOIB_H #define LINUXKPI_PARAM_PREFIX ipoib_ #include "opt_inet.h" #include "opt_inet6.h" #include "opt_ofed.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(INET) || defined(INET6) #include #include #include #include #endif #ifdef INET6 #include #endif #include #include #include #include #include #include #include #include #include #include /* constants */ #define INFINIBAND_ALEN 20 /* Octets in IPoIB HW addr */ #ifdef IPOIB_CM #define CONFIG_INFINIBAND_IPOIB_CM #endif #ifdef IPOIB_DEBUG #define CONFIG_INFINIBAND_IPOIB_DEBUG #define CONFIG_INFINIBAND_IPOIB_DEBUG_DATA #endif enum ipoib_flush_level { IPOIB_FLUSH_LIGHT, IPOIB_FLUSH_NORMAL, IPOIB_FLUSH_HEAVY }; enum { IPOIB_ENCAP_LEN = 4, IPOIB_HEADER_LEN = IPOIB_ENCAP_LEN + INFINIBAND_ALEN, IPOIB_UD_MAX_MTU = 4 * 1024, IPOIB_UD_RX_SG = 2, /* packet header and one cluster */ IPOIB_UD_TX_SG = (IPOIB_UD_MAX_MTU / MCLBYTES) + 2, IPOIB_CM_MAX_MTU = (64 * 1024), IPOIB_CM_TX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2, IPOIB_CM_RX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2, IPOIB_RX_RING_SIZE = 256, IPOIB_TX_RING_SIZE = 128, IPOIB_MAX_RX_SG = MAX(IPOIB_CM_RX_SG, IPOIB_UD_RX_SG), IPOIB_MAX_TX_SG = MAX(IPOIB_CM_TX_SG, IPOIB_UD_TX_SG), IPOIB_MAX_QUEUE_SIZE = 8192, IPOIB_MIN_QUEUE_SIZE = 2, IPOIB_CM_MAX_CONN_QP = 4096, IPOIB_NUM_WC = 4, IPOIB_MAX_PATH_REC_QUEUE = 16, IPOIB_MAX_MCAST_QUEUE = 16, IPOIB_FLAG_OPER_UP = 0, IPOIB_FLAG_INITIALIZED = 1, IPOIB_FLAG_ADMIN_UP = 2, IPOIB_PKEY_ASSIGNED = 3, IPOIB_PKEY_STOP = 4, IPOIB_FLAG_SUBINTERFACE = 5, IPOIB_MCAST_RUN = 6, IPOIB_STOP_REAPER = 7, IPOIB_FLAG_UMCAST = 10, IPOIB_FLAG_CSUM = 11, IPOIB_MAX_BACKOFF_SECONDS = 16, IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ IPOIB_MCAST_FLAG_SENDONLY = 1, IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ IPOIB_MCAST_FLAG_ATTACHED = 3, IPOIB_MAX_LRO_DESCRIPTORS = 8, IPOIB_LRO_MAX_AGGR = 64, MAX_SEND_CQE = 16, IPOIB_CM_COPYBREAK = 256, }; #define IPOIB_OP_RECV (1ul << 31) #ifdef CONFIG_INFINIBAND_IPOIB_CM #define IPOIB_OP_CM (1ul << 30) #else #define IPOIB_OP_CM (0) #endif /* structs */ struct ipoib_header { u8 hwaddr[INFINIBAND_ALEN]; __be16 proto; u16 reserved; }; struct ipoib_pseudoheader { u8 hwaddr[INFINIBAND_ALEN]; }; /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ struct ipoib_mcast { struct ib_sa_mcmember_rec mcmember; struct ib_sa_multicast *mc; struct ipoib_ah *ah; struct rb_node rb_node; struct list_head list; unsigned long created; unsigned long backoff; unsigned long flags; unsigned char logcount; struct ifqueue pkt_queue; struct ipoib_dev_priv *priv; }; struct ipoib_cm_rx_buf { struct mbuf *mb; u64 mapping[IPOIB_CM_RX_SG]; }; struct ipoib_cm_tx_buf { struct mbuf *mb; u64 mapping[IPOIB_CM_TX_SG]; }; struct ipoib_rx_buf { struct mbuf *mb; u64 mapping[IPOIB_UD_RX_SG]; }; struct ipoib_tx_buf { struct mbuf *mb; u64 mapping[IPOIB_UD_TX_SG]; }; struct ib_cm_id; struct ipoib_cm_data { __be32 qpn; /* High byte MUST be ignored on receive */ __be32 mtu; }; /* * Quoting 10.3.1 Queue Pair and EE Context States: * * Note, for QPs that are associated with an SRQ, the Consumer should take the * QP through the Error State before invoking a Destroy QP or a Modify QP to the * Reset State. The Consumer may invoke the Destroy QP without first performing * a Modify QP to the Error State and waiting for the Affiliated Asynchronous * Last WQE Reached Event. However, if the Consumer does not wait for the * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment * leakage may occur. Therefore, it is good programming practice to tear down a * QP that is associated with an SRQ by using the following process: * * - Put the QP in the Error State * - Wait for the Affiliated Asynchronous Last WQE Reached Event; * - either: * drain the CQ by invoking the Poll CQ verb and either wait for CQ * to be empty or the number of Poll CQ operations has exceeded * CQ capacity size; * - or * post another WR that completes on the same CQ and wait for this * WR to return as a WC; * - and then invoke a Destroy QP or Reset QP. * * We use the second option and wait for a completion on the * same CQ before destroying QPs attached to our SRQ. */ enum ipoib_cm_state { IPOIB_CM_RX_LIVE, IPOIB_CM_RX_ERROR, /* Ignored by stale task */ IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ }; struct ipoib_cm_rx { struct ib_cm_id *id; struct ib_qp *qp; struct ipoib_cm_rx_buf *rx_ring; struct list_head list; struct ipoib_dev_priv *priv; unsigned long jiffies; enum ipoib_cm_state state; int recv_count; }; struct ipoib_cm_tx { struct ib_cm_id *id; struct ib_qp *qp; struct list_head list; struct ipoib_dev_priv *priv; struct ipoib_path *path; struct ipoib_cm_tx_buf *tx_ring; unsigned tx_head; unsigned tx_tail; unsigned long flags; u32 mtu; /* remote specified mtu, with grh. */ }; struct ipoib_cm_dev_priv { struct ib_srq *srq; struct ipoib_cm_rx_buf *srq_ring; struct ib_cm_id *id; struct list_head passive_ids; /* state: LIVE */ struct list_head rx_error_list; /* state: ERROR */ struct list_head rx_flush_list; /* state: FLUSH, drain not started */ struct list_head rx_drain_list; /* state: FLUSH, drain started */ struct list_head rx_reap_list; /* state: FLUSH, drain done */ struct work_struct start_task; struct work_struct reap_task; struct work_struct mb_task; struct work_struct rx_reap_task; struct delayed_work stale_task; struct ifqueue mb_queue; struct list_head start_list; struct list_head reap_list; struct ib_sge rx_sge[IPOIB_CM_RX_SG]; struct ib_recv_wr rx_wr; int nonsrq_conn_qp; int max_cm_mtu; /* Actual buf size. */ int num_frags; }; struct ipoib_ethtool_st { u16 coalesce_usecs; u16 max_coalesced_frames; }; /* * Device private locking: network stack tx_lock protects members used * in TX fast path, lock protects everything else. lock nests inside * of tx_lock (ie tx_lock must be acquired first if needed). */ struct ipoib_dev_priv { spinlock_t lock; spinlock_t drain_lock; struct ifnet *dev; u8 broadcastaddr[INFINIBAND_ALEN]; unsigned long flags; int gone; int unit; struct mutex vlan_mutex; struct rb_root path_tree; struct list_head path_list; struct ipoib_mcast *broadcast; struct list_head multicast_list; struct rb_root multicast_tree; struct delayed_work pkey_poll_task; struct delayed_work mcast_task; struct work_struct carrier_on_task; struct work_struct flush_light; struct work_struct flush_normal; struct work_struct flush_heavy; struct work_struct restart_task; struct delayed_work ah_reap_task; struct ib_device *ca; u8 port; u16 pkey; u16 pkey_index; struct ib_pd *pd; struct ib_cq *recv_cq; struct ib_cq *send_cq; struct ib_qp *qp; u32 qkey; union ib_gid local_gid; u16 local_lid; unsigned int admin_mtu; /* User selected MTU, no GRH. */ unsigned int mcast_mtu; /* Minus GRH bytes, from mcast group. */ unsigned int max_ib_mtu; /* Without header, actual buf size. */ struct ipoib_rx_buf *rx_ring; struct ipoib_tx_buf *tx_ring; unsigned tx_head; unsigned tx_tail; struct ib_sge tx_sge[IPOIB_MAX_TX_SG]; struct ib_ud_wr tx_wr; unsigned tx_outstanding; struct ib_wc send_wc[MAX_SEND_CQE]; struct ib_recv_wr rx_wr; struct ib_sge rx_sge[IPOIB_MAX_RX_SG]; struct ib_wc ibwc[IPOIB_NUM_WC]; struct list_head dead_ahs; struct ib_event_handler event_handler; struct ifnet *parent; struct list_head child_intfs; struct list_head list; #ifdef CONFIG_INFINIBAND_IPOIB_CM struct ipoib_cm_dev_priv cm; #endif #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG struct list_head fs_list; struct dentry *mcg_dentry; struct dentry *path_dentry; #endif int hca_caps; struct ipoib_ethtool_st ethtool; struct timer_list poll_timer; }; struct ipoib_ah { struct ipoib_dev_priv *priv; struct ib_ah *ah; struct list_head list; struct kref ref; unsigned last_send; }; struct ipoib_path { struct ipoib_dev_priv *priv; struct rb_node rb_node; struct list_head list; #ifdef CONFIG_INFINIBAND_IPOIB_CM uint8_t hwaddr[INFINIBAND_ALEN]; struct ipoib_cm_tx *cm; #endif struct ipoib_ah *ah; struct ib_sa_path_rec pathrec; struct ifqueue queue; int query_id; struct ib_sa_query *query; struct completion done; int valid; }; /* UD Only transmits encap len but we want the two sizes to be symmetrical. */ #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) #define IPOIB_CM_MTU(ib_mtu) (ib_mtu - 0x10) #define IPOIB_IS_MULTICAST(addr) ((addr)[4] == 0xff) extern struct workqueue_struct *ipoib_workqueue; /* functions */ void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); struct ipoib_ah *ipoib_create_ah(struct ipoib_dev_priv *, struct ib_pd *pd, struct ib_ah_attr *attr); void ipoib_free_ah(struct kref *kref); static inline void ipoib_put_ah(struct ipoib_ah *ah) { kref_put(&ah->ref, ipoib_free_ah); } int ipoib_open(struct ipoib_dev_priv *priv); int ipoib_add_pkey_attr(struct ipoib_dev_priv *priv); int ipoib_add_umcast_attr(struct ipoib_dev_priv *priv); void ipoib_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_ah *address, u32 qpn); void ipoib_reap_ah(struct work_struct *work); void ipoib_mark_paths_invalid(struct ipoib_dev_priv *priv); void ipoib_flush_paths(struct ipoib_dev_priv *priv); struct ipoib_dev_priv *ipoib_intf_alloc(const char *format, struct ib_device *ca); int ipoib_ib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port); void ipoib_ib_dev_flush_light(struct work_struct *work); void ipoib_ib_dev_flush_normal(struct work_struct *work); void ipoib_ib_dev_flush_heavy(struct work_struct *work); void ipoib_pkey_event(struct work_struct *work); void ipoib_ib_dev_cleanup(struct ipoib_dev_priv *priv); int ipoib_ib_dev_open(struct ipoib_dev_priv *priv); int ipoib_ib_dev_up(struct ipoib_dev_priv *priv); int ipoib_ib_dev_down(struct ipoib_dev_priv *priv, int flush); int ipoib_ib_dev_stop(struct ipoib_dev_priv *priv, int flush); int ipoib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port); void ipoib_dev_cleanup(struct ipoib_dev_priv *priv); void ipoib_mcast_join_task(struct work_struct *work); void ipoib_mcast_carrier_on_task(struct work_struct *work); void ipoib_mcast_send(struct ipoib_dev_priv *priv, void *mgid, struct mbuf *mb); void ipoib_mcast_restart_task(struct work_struct *work); void ipoib_mcast_restart(struct ipoib_dev_priv *); int ipoib_mcast_start_thread(struct ipoib_dev_priv *priv); int ipoib_mcast_stop_thread(struct ipoib_dev_priv *priv, int flush); void ipoib_mcast_dev_down(struct ipoib_dev_priv *priv); void ipoib_mcast_dev_flush(struct ipoib_dev_priv *priv); void ipoib_path_free(struct ipoib_dev_priv *priv, struct ipoib_path *path); #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct ipoib_dev_priv *priv); int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, union ib_gid *gid, unsigned long *created, unsigned int *queuelen, unsigned int *complete, unsigned int *send_only); struct ipoib_path_iter *ipoib_path_iter_init(struct ipoib_dev_priv *priv); int ipoib_path_iter_next(struct ipoib_path_iter *iter); void ipoib_path_iter_read(struct ipoib_path_iter *iter, struct ipoib_path *path); #endif int ipoib_change_mtu(struct ipoib_dev_priv *priv, int new_mtu, bool propagate); int ipoib_mcast_attach(struct ipoib_dev_priv *priv, u16 mlid, union ib_gid *mgid, int set_qkey); int ipoib_init_qp(struct ipoib_dev_priv *priv); int ipoib_transport_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca); void ipoib_transport_dev_cleanup(struct ipoib_dev_priv *priv); void ipoib_event(struct ib_event_handler *handler, struct ib_event *record); void ipoib_pkey_poll(struct work_struct *work); int ipoib_pkey_dev_delay_open(struct ipoib_dev_priv *priv); void ipoib_drain_cq(struct ipoib_dev_priv *priv); int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req, int max); void ipoib_dma_unmap_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req); int ipoib_poll_tx(struct ipoib_dev_priv *priv, bool do_start); void ipoib_dma_unmap_rx(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req); void ipoib_dma_mb(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int length); struct mbuf *ipoib_alloc_map_mb(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req, int align, int size, int max_frags); void ipoib_set_ethtool_ops(struct ifnet *dev); int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); #ifdef CONFIG_INFINIBAND_IPOIB_CM #define IPOIB_FLAGS_RC 0x80 #define IPOIB_FLAGS_UC 0x40 /* We don't support UC connections at the moment */ #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) extern int ipoib_max_conn_qp; static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv) { return IPOIB_CM_SUPPORTED(IF_LLADDR(priv->dev)); } static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr) { return IPOIB_CM_SUPPORTED(hwaddr); } static inline int ipoib_cm_up(struct ipoib_path *path) { return test_bit(IPOIB_FLAG_OPER_UP, &path->cm->flags); } static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path) { return path->cm; } static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx) { path->cm = tx; } static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv) { return !!priv->cm.srq; } static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv) { return priv->cm.max_cm_mtu; } void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx); int ipoib_cm_dev_open(struct ipoib_dev_priv *priv); void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv); int ipoib_cm_dev_init(struct ipoib_dev_priv *priv); int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv); void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv); struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, struct ipoib_path *path); void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int mtu); void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc); void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc); #else struct ipoib_cm_tx; #define ipoib_max_conn_qp 0 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv) { return 0; } static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr) { return 0; } static inline int ipoib_cm_up(struct ipoib_path *path) { return 0; } static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path) { return NULL; } static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx) { } static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv) { return 0; } static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv) { return 0; } static inline void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx) { return; } static inline int ipoib_cm_dev_open(struct ipoib_dev_priv *priv) { return 0; } static inline void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv) { return; } static inline int ipoib_cm_dev_init(struct ipoib_dev_priv *priv) { return -ENOSYS; } static inline void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv) { return; } static inline struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, struct ipoib_path *path) { return NULL; } static inline void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) { return; } static inline int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv) { return 0; } static inline void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int mtu) { m_freem(mb); } static inline void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc) { } static inline void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc) { } #endif #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG void ipoib_create_debug_files(struct ipoib_dev_priv *priv); void ipoib_delete_debug_files(struct ipoib_dev_priv *priv); int ipoib_register_debugfs(void); void ipoib_unregister_debugfs(void); #else static inline void ipoib_create_debug_files(struct ipoib_dev_priv *priv) { } static inline void ipoib_delete_debug_files(struct ipoib_dev_priv *priv) { } static inline int ipoib_register_debugfs(void) { return 0; } static inline void ipoib_unregister_debugfs(void) { } #endif #define ipoib_printk(level, priv, format, arg...) \ printk(level "%s: " format, if_name(((struct ipoib_dev_priv *) priv)->dev), ## arg) #define ipoib_warn(priv, format, arg...) \ ipoib_printk(KERN_WARNING, priv, format , ## arg) extern int ipoib_sendq_size; extern int ipoib_recvq_size; extern struct ib_sa_client ipoib_sa_client; #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG extern int ipoib_debug_level; #define ipoib_dbg(priv, format, arg...) \ do { \ if (ipoib_debug_level > 0) \ ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ } while (0) #define ipoib_dbg_mcast(priv, format, arg...) \ do { \ if (mcast_debug_level > 0) \ ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ } while (0) #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ #define ipoib_dbg(priv, format, arg...) \ do { (void) (priv); } while (0) #define ipoib_dbg_mcast(priv, format, arg...) \ do { (void) (priv); } while (0) #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA #define ipoib_dbg_data(priv, format, arg...) \ do { \ if (data_debug_level > 0) \ ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ } while (0) #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ #define ipoib_dbg_data(priv, format, arg...) \ do { (void) (priv); } while (0) #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) void ipoib_start_locked(struct ifnet *, struct ipoib_dev_priv *); #endif /* _IPOIB_H */