| /* |
| * 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_STOP_NEIGH_GC = 11, |
| IPOIB_NEIGH_TBL_FLUSH = 12, |
| IPOIB_FLAG_DEV_ADDR_SET = 13, |
| IPOIB_FLAG_DEV_ADDR_CTRL = 14, |
| IPOIB_FLAG_GOING_DOWN = 15, |
| |
| 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_path *path; |
| struct ipoib_tx_buf *tx_ring; |
| unsigned tx_head; |
| unsigned tx_tail; |
| unsigned long flags; |
| u32 mtu; |
| unsigned 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; |
| |
| struct napi_struct send_napi; |
| struct napi_struct recv_napi; |
| |
| unsigned long flags; |
| |
| struct rw_semaphore vlan_rwsem; |
| struct mutex mcast_mutex; |
| struct mutex sysfs_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; |
| unsigned tx_head; |
| unsigned 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 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 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); |
| 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); |
| int 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); |
| |
| int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); |
| void ipoib_dev_cleanup(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); |
| void ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); |
| |
| #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 -ENOSYS; |
| } |
| |
| 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 */ |
