diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib.h')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib.h | 843 |
1 files changed, 843 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h new file mode 100644 index 000000000..ef1222101 --- /dev/null +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -0,0 +1,843 @@ +/* + * 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 + +#include <linux/list.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/workqueue.h> +#include <linux/kref.h> +#include <linux/if_infiniband.h> +#include <linux/mutex.h> + +#include <net/neighbour.h> +#include <net/sch_generic.h> + +#include <linux/atomic.h> + +#include <rdma/ib_verbs.h> +#include <rdma/ib_pack.h> +#include <rdma/ib_sa.h> +#include <linux/sched.h> +/* constants */ + +enum ipoib_flush_level { + IPOIB_FLUSH_LIGHT, + IPOIB_FLUSH_NORMAL, + IPOIB_FLUSH_HEAVY +}; + +enum { + IPOIB_ENCAP_LEN = 4, + IPOIB_PSEUDO_LEN = 20, + IPOIB_HARD_LEN = IPOIB_ENCAP_LEN + IPOIB_PSEUDO_LEN, + + IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, + IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ + + IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ + IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, + IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, + IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, + IPOIB_RX_RING_SIZE = 256, + IPOIB_TX_RING_SIZE = 128, + 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 = 3, + IPOIB_MAX_MCAST_QUEUE = 64, + + IPOIB_FLAG_OPER_UP = 0, + IPOIB_FLAG_INITIALIZED = 1, + IPOIB_FLAG_ADMIN_UP = 2, + IPOIB_PKEY_ASSIGNED = 3, + IPOIB_FLAG_SUBINTERFACE = 5, + IPOIB_STOP_REAPER = 7, + IPOIB_FLAG_ADMIN_CM = 9, + IPOIB_FLAG_UMCAST = 10, + IPOIB_NEIGH_TBL_FLUSH = 12, + IPOIB_FLAG_DEV_ADDR_SET = 13, + IPOIB_FLAG_DEV_ADDR_CTRL = 14, + + IPOIB_MAX_BACKOFF_SECONDS = 16, + + IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ + IPOIB_MCAST_FLAG_SENDONLY = 1, + /* + * For IPOIB_MCAST_FLAG_BUSY + * When set, in flight join and mcast->mc is unreliable + * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or + * haven't started yet + * When clear and mcast->mc is valid pointer, join was successful + */ + IPOIB_MCAST_FLAG_BUSY = 2, + IPOIB_MCAST_FLAG_ATTACHED = 3, + + MAX_SEND_CQE = 64, + IPOIB_CM_COPYBREAK = 256, + + IPOIB_NON_CHILD = 0, + IPOIB_LEGACY_CHILD = 1, + IPOIB_RTNL_CHILD = 2, +}; + +#define IPOIB_OP_RECV (1ul << 31) +#ifdef CONFIG_INFINIBAND_IPOIB_CM +#define IPOIB_OP_CM (1ul << 30) +#else +#define IPOIB_OP_CM (0) +#endif + +#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF)) + +/* structs */ + +struct ipoib_header { + __be16 proto; + u16 reserved; +}; + +struct ipoib_pseudo_header { + u8 hwaddr[INFINIBAND_ALEN]; +}; + +static inline void skb_add_pseudo_hdr(struct sk_buff *skb) +{ + char *data = skb_push(skb, IPOIB_PSEUDO_LEN); + + /* + * only the ipoib header is present now, make room for a dummy + * pseudo header and set skb field accordingly + */ + memset(data, 0, IPOIB_PSEUDO_LEN); + skb_reset_mac_header(skb); + skb_pull(skb, IPOIB_HARD_LEN); +} + +static inline struct ipoib_dev_priv *ipoib_priv(const struct net_device *dev) +{ + struct rdma_netdev *rn = netdev_priv(dev); + + return rn->clnt_priv; +} + +/* 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 delay_until; + + unsigned long flags; + unsigned char logcount; + + struct list_head neigh_list; + + struct sk_buff_head pkt_queue; + + struct net_device *dev; + struct completion done; +}; + +struct ipoib_rx_buf { + struct sk_buff *skb; + u64 mapping[IPOIB_UD_RX_SG]; +}; + +struct ipoib_tx_buf { + struct sk_buff *skb; + u64 mapping[MAX_SKB_FRAGS + 1]; +}; + +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 net_device *dev; + 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 net_device *dev; + struct ipoib_neigh *neigh; + struct ipoib_tx_buf *tx_ring; + unsigned int tx_head; + unsigned int tx_tail; + unsigned long flags; + u32 mtu; + unsigned int max_send_sge; +}; + +struct ipoib_cm_rx_buf { + struct sk_buff *skb; + u64 mapping[IPOIB_CM_RX_SG]; +}; + +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 skb_task; + struct work_struct rx_reap_task; + struct delayed_work stale_task; + struct sk_buff_head skb_queue; + struct list_head start_list; + struct list_head reap_list; + struct ib_wc ibwc[IPOIB_NUM_WC]; + struct ib_sge rx_sge[IPOIB_CM_RX_SG]; + struct ib_recv_wr rx_wr; + int nonsrq_conn_qp; + int max_cm_mtu; + int num_frags; +}; + +struct ipoib_ethtool_st { + u16 coalesce_usecs; + u16 max_coalesced_frames; +}; + +struct ipoib_neigh_table; + +struct ipoib_neigh_hash { + struct ipoib_neigh_table *ntbl; + struct ipoib_neigh __rcu **buckets; + struct rcu_head rcu; + u32 mask; + u32 size; +}; + +struct ipoib_neigh_table { + struct ipoib_neigh_hash __rcu *htbl; + atomic_t entries; + struct completion flushed; + struct completion deleted; +}; + +struct ipoib_qp_state_validate { + struct work_struct work; + struct ipoib_dev_priv *priv; +}; + +/* + * 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; + + struct net_device *dev; + void (*next_priv_destructor)(struct net_device *dev); + + struct napi_struct send_napi; + struct napi_struct recv_napi; + + unsigned long flags; + + /* + * This protects access to the child_intfs list. + * To READ from child_intfs the RTNL or vlan_rwsem read side must be + * held. To WRITE RTNL and the vlan_rwsem write side must be held (in + * that order) This lock exists because we have a few contexts where + * we need the child_intfs, but do not want to grab the RTNL. + */ + struct rw_semaphore vlan_rwsem; + struct mutex mcast_mutex; + + struct rb_root path_tree; + struct list_head path_list; + + struct ipoib_neigh_table ntbl; + + struct ipoib_mcast *broadcast; + struct list_head multicast_list; + struct rb_root multicast_tree; + + struct workqueue_struct *wq; + 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 delayed_work neigh_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; + u32 local_lid; + + unsigned int admin_mtu; + unsigned int mcast_mtu; + unsigned int max_ib_mtu; + + struct ipoib_rx_buf *rx_ring; + + struct ipoib_tx_buf *tx_ring; + /* cyclic ring variables for managing tx_ring, for UD only */ + unsigned int tx_head; + unsigned int tx_tail; + /* cyclic ring variables for counting overall outstanding send WRs */ + unsigned int global_tx_head; + unsigned int global_tx_tail; + struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; + struct ib_ud_wr tx_wr; + struct ib_wc send_wc[MAX_SEND_CQE]; + + struct ib_recv_wr rx_wr; + struct ib_sge rx_sge[IPOIB_UD_RX_SG]; + + struct ib_wc ibwc[IPOIB_NUM_WC]; + + struct list_head dead_ahs; + + struct ib_event_handler event_handler; + + struct net_device *parent; + struct list_head child_intfs; + struct list_head list; + int child_type; + +#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 + u64 hca_caps; + struct ipoib_ethtool_st ethtool; + unsigned int max_send_sge; + bool sm_fullmember_sendonly_support; + const struct net_device_ops *rn_ops; +}; + +struct ipoib_ah { + struct net_device *dev; + struct ib_ah *ah; + struct list_head list; + struct kref ref; + unsigned int last_send; + int valid; +}; + +struct ipoib_path { + struct net_device *dev; + struct sa_path_rec pathrec; + struct ipoib_ah *ah; + struct sk_buff_head queue; + + struct list_head neigh_list; + + int query_id; + struct ib_sa_query *query; + struct completion done; + + struct rb_node rb_node; + struct list_head list; +}; + +struct ipoib_neigh { + struct ipoib_ah *ah; +#ifdef CONFIG_INFINIBAND_IPOIB_CM + struct ipoib_cm_tx *cm; +#endif + u8 daddr[INFINIBAND_ALEN]; + struct sk_buff_head queue; + + struct net_device *dev; + + struct list_head list; + struct ipoib_neigh __rcu *hnext; + struct rcu_head rcu; + atomic_t refcnt; + unsigned long alive; +}; + +#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) +#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) + +void ipoib_neigh_dtor(struct ipoib_neigh *neigh); +static inline void ipoib_neigh_put(struct ipoib_neigh *neigh) +{ + if (atomic_dec_and_test(&neigh->refcnt)) + ipoib_neigh_dtor(neigh); +} +struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr); +struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, + struct net_device *dev); +void ipoib_neigh_free(struct ipoib_neigh *neigh); +void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid); + +extern struct workqueue_struct *ipoib_workqueue; + +/* functions */ + +int ipoib_rx_poll(struct napi_struct *napi, int budget); +int ipoib_tx_poll(struct napi_struct *napi, int budget); +void ipoib_ib_rx_completion(struct ib_cq *cq, void *ctx_ptr); +void ipoib_ib_tx_completion(struct ib_cq *cq, void *ctx_ptr); + +struct ipoib_ah *ipoib_create_ah(struct net_device *dev, + struct ib_pd *pd, struct rdma_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 net_device *dev); +void ipoib_intf_free(struct net_device *dev); +int ipoib_add_pkey_attr(struct net_device *dev); +int ipoib_add_umcast_attr(struct net_device *dev); + +int ipoib_send(struct net_device *dev, struct sk_buff *skb, + struct ib_ah *address, u32 dqpn); +void ipoib_reap_ah(struct work_struct *work); + +struct ipoib_path *__path_find(struct net_device *dev, void *gid); +void ipoib_mark_paths_invalid(struct net_device *dev); +void ipoib_flush_paths(struct net_device *dev); +struct ipoib_dev_priv *ipoib_intf_alloc(struct ib_device *hca, u8 port, + const char *format); +void ipoib_ib_tx_timer_func(struct timer_list *t); +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 net_device *dev); + +int ipoib_ib_dev_open_default(struct net_device *dev); +int ipoib_ib_dev_open(struct net_device *dev); +void ipoib_ib_dev_stop(struct net_device *dev); +void ipoib_ib_dev_up(struct net_device *dev); +void ipoib_ib_dev_down(struct net_device *dev); +int ipoib_ib_dev_stop_default(struct net_device *dev); +void ipoib_pkey_dev_check_presence(struct net_device *dev); + +void ipoib_mcast_join_task(struct work_struct *work); +void ipoib_mcast_carrier_on_task(struct work_struct *work); +void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); + +void ipoib_mcast_restart_task(struct work_struct *work); +void ipoib_mcast_start_thread(struct net_device *dev); +int ipoib_mcast_stop_thread(struct net_device *dev); + +void ipoib_mcast_dev_down(struct net_device *dev); +void ipoib_mcast_dev_flush(struct net_device *dev); + +int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req); +void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv, + struct ipoib_tx_buf *tx_req); + +static inline void ipoib_build_sge(struct ipoib_dev_priv *priv, + struct ipoib_tx_buf *tx_req) +{ + int i, off; + struct sk_buff *skb = tx_req->skb; + skb_frag_t *frags = skb_shinfo(skb)->frags; + int nr_frags = skb_shinfo(skb)->nr_frags; + u64 *mapping = tx_req->mapping; + + if (skb_headlen(skb)) { + priv->tx_sge[0].addr = mapping[0]; + priv->tx_sge[0].length = skb_headlen(skb); + off = 1; + } else + off = 0; + + for (i = 0; i < nr_frags; ++i) { + priv->tx_sge[i + off].addr = mapping[i + off]; + priv->tx_sge[i + off].length = skb_frag_size(&frags[i]); + } + priv->tx_wr.wr.num_sge = nr_frags + off; +} + +#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG +struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); +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 net_device *dev); +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_mcast_attach(struct net_device *dev, struct ib_device *hca, + union ib_gid *mgid, u16 mlid, int set_qkey, u32 qkey); +int ipoib_mcast_detach(struct net_device *dev, struct ib_device *hca, + union ib_gid *mgid, u16 mlid); +void ipoib_mcast_remove_list(struct list_head *remove_list); +void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid, + struct list_head *remove_list); + +int ipoib_init_qp(struct net_device *dev); +int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); +void ipoib_transport_dev_cleanup(struct net_device *dev); + +void ipoib_event(struct ib_event_handler *handler, + struct ib_event *record); + +int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); +int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); + +int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, + u16 pkey, int child_type); + +int __init ipoib_netlink_init(void); +void __exit ipoib_netlink_fini(void); + +void ipoib_set_umcast(struct net_device *ndev, int umcast_val); +int ipoib_set_mode(struct net_device *dev, const char *buf); + +void ipoib_setup_common(struct net_device *dev); + +void ipoib_pkey_open(struct ipoib_dev_priv *priv); +void ipoib_drain_cq(struct net_device *dev); + +void ipoib_set_ethtool_ops(struct net_device *dev); + +#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)) + +#ifdef CONFIG_INFINIBAND_IPOIB_CM + +extern int ipoib_max_conn_qp; + +static inline int ipoib_cm_admin_enabled(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = ipoib_priv(dev); + return IPOIB_CM_SUPPORTED(dev->dev_addr) && + test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); +} + +static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) +{ + struct ipoib_dev_priv *priv = ipoib_priv(dev); + return IPOIB_CM_SUPPORTED(hwaddr) && + test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); +} + +static inline int ipoib_cm_up(struct ipoib_neigh *neigh) + +{ + return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); +} + +static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) +{ + return neigh->cm; +} + +static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) +{ + neigh->cm = tx; +} + +static inline int ipoib_cm_has_srq(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = ipoib_priv(dev); + return !!priv->cm.srq; +} + +static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = ipoib_priv(dev); + return priv->cm.max_cm_mtu; +} + +void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); +int ipoib_cm_dev_open(struct net_device *dev); +void ipoib_cm_dev_stop(struct net_device *dev); +int ipoib_cm_dev_init(struct net_device *dev); +int ipoib_cm_add_mode_attr(struct net_device *dev); +void ipoib_cm_dev_cleanup(struct net_device *dev); +struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, + struct ipoib_neigh *neigh); +void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); +void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, + unsigned int mtu); +void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); +void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); +#else + +struct ipoib_cm_tx; + +#define ipoib_max_conn_qp 0 + +static inline int ipoib_cm_admin_enabled(struct net_device *dev) +{ + return 0; +} +static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) + +{ + return 0; +} + +static inline int ipoib_cm_up(struct ipoib_neigh *neigh) + +{ + return 0; +} + +static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) +{ + return NULL; +} + +static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) +{ +} + +static inline int ipoib_cm_has_srq(struct net_device *dev) +{ + return 0; +} + +static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) +{ + return 0; +} + +static inline +void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) +{ + return; +} + +static inline +int ipoib_cm_dev_open(struct net_device *dev) +{ + return 0; +} + +static inline +void ipoib_cm_dev_stop(struct net_device *dev) +{ + return; +} + +static inline +int ipoib_cm_dev_init(struct net_device *dev) +{ + return -EOPNOTSUPP; +} + +static inline +void ipoib_cm_dev_cleanup(struct net_device *dev) +{ + return; +} + +static inline +struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, + struct ipoib_neigh *neigh) +{ + return NULL; +} + +static inline +void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) +{ + return; +} + +static inline +int ipoib_cm_add_mode_attr(struct net_device *dev) +{ + return 0; +} + +static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, + unsigned int mtu) +{ + dev_kfree_skb_any(skb); +} + +static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) +{ +} + +static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) +{ +} +#endif + +#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG +void ipoib_create_debug_files(struct net_device *dev); +void ipoib_delete_debug_files(struct net_device *dev); +int ipoib_register_debugfs(void); +void ipoib_unregister_debugfs(void); +#else +static inline void ipoib_create_debug_files(struct net_device *dev) { } +static inline void ipoib_delete_debug_files(struct net_device *dev) { } +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, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) +#define ipoib_warn(priv, format, arg...) \ +do { \ + static DEFINE_RATELIMIT_STATE(_rs, \ + 10 * HZ /*10 seconds */, \ + 100); \ + if (__ratelimit(&_rs)) \ + ipoib_printk(KERN_WARNING, priv, format , ## arg);\ +} while (0) + +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) + +extern const char ipoib_driver_version[]; + +#endif /* _IPOIB_H */ |