-/*
- * When the NAL detects an incoming message header, it should call
- * lib_parse() decode it. If the message header is garbage, lib_parse()
- * returns immediately with failure, otherwise the NAL callbacks will be
- * called to receive the message body. They are handed the private cookie
- * as a way for the NAL to maintain state about which transaction is being
- * processed. An extra parameter, lib_msg contains the lib-level message
- * state for passing to lib_finalize() when the message body has been
- * received.
- */
-extern void lib_enq_event_locked (lib_nal_t *nal, void *private,
- lib_eq_t *eq, ptl_event_t *ev);
-extern void lib_finalize (lib_nal_t *nal, void *private, lib_msg_t *msg,
- ptl_ni_fail_t ni_fail_type);
-extern ptl_err_t lib_parse (lib_nal_t *nal, ptl_hdr_t *hdr, void *private);
-extern lib_msg_t *lib_create_reply_msg (lib_nal_t *nal, ptl_nid_t peer_nid,
- lib_msg_t *get_msg);
-extern void print_hdr (lib_nal_t * nal, ptl_hdr_t * hdr);
-
-
-extern ptl_size_t lib_iov_nob (int niov, struct iovec *iov);
-extern void lib_copy_iov2buf (char *dest, int niov, struct iovec *iov,
- ptl_size_t offset, ptl_size_t len);
-extern void lib_copy_buf2iov (int niov, struct iovec *iov, ptl_size_t offset,
- char *src, ptl_size_t len);
-extern int lib_extract_iov (int dst_niov, struct iovec *dst,
- int src_niov, struct iovec *src,
- ptl_size_t offset, ptl_size_t len);
-
-extern ptl_size_t lib_kiov_nob (int niov, ptl_kiov_t *iov);
-extern void lib_copy_kiov2buf (char *dest, int niov, ptl_kiov_t *kiov,
- ptl_size_t offset, ptl_size_t len);
-extern void lib_copy_buf2kiov (int niov, ptl_kiov_t *kiov, ptl_size_t offset,
- char *src, ptl_size_t len);
-extern int lib_extract_kiov (int dst_niov, ptl_kiov_t *dst,
- int src_niov, ptl_kiov_t *src,
- ptl_size_t offset, ptl_size_t len);
-
-extern void lib_assert_wire_constants (void);
-
-extern ptl_err_t lib_recv (lib_nal_t *nal, void *private, lib_msg_t *msg, lib_md_t *md,
- ptl_size_t offset, ptl_size_t mlen, ptl_size_t rlen);
-extern ptl_err_t lib_send (lib_nal_t *nal, void *private, lib_msg_t *msg,
- ptl_hdr_t *hdr, int type, ptl_nid_t nid, ptl_pid_t pid,
- lib_md_t *md, ptl_size_t offset, ptl_size_t len);
-
-extern int lib_api_ni_status (nal_t *nal, ptl_sr_index_t sr_idx,
- ptl_sr_value_t *status);
-extern int lib_api_ni_dist (nal_t *nal, ptl_process_id_t *pid,
- unsigned long *dist);
-
-extern int lib_api_eq_alloc (nal_t *nal, ptl_size_t count,
- ptl_eq_handler_t callback,
- ptl_handle_eq_t *handle);
-extern int lib_api_eq_free(nal_t *nal, ptl_handle_eq_t *eqh);
-extern int lib_api_eq_poll (nal_t *nal,
- ptl_handle_eq_t *eventqs, int neq, int timeout_ms,
- ptl_event_t *event, int *which);
-
-extern int lib_api_me_attach(nal_t *nal,
- ptl_pt_index_t portal,
- ptl_process_id_t match_id,
- ptl_match_bits_t match_bits,
- ptl_match_bits_t ignore_bits,
- ptl_unlink_t unlink, ptl_ins_pos_t pos,
- ptl_handle_me_t *handle);
-extern int lib_api_me_insert(nal_t *nal,
- ptl_handle_me_t *current_meh,
- ptl_process_id_t match_id,
- ptl_match_bits_t match_bits,
- ptl_match_bits_t ignore_bits,
- ptl_unlink_t unlink, ptl_ins_pos_t pos,
- ptl_handle_me_t *handle);
-extern int lib_api_me_unlink (nal_t *nal, ptl_handle_me_t *meh);
-extern void lib_me_unlink(lib_nal_t *nal, lib_me_t *me);
-
-extern int lib_api_get_id(nal_t *nal, ptl_process_id_t *pid);
-
-extern void lib_md_unlink(lib_nal_t *nal, lib_md_t *md);
-extern void lib_md_deconstruct(lib_nal_t *nal, lib_md_t *lmd, ptl_md_t *umd);
-extern int lib_api_md_attach(nal_t *nal, ptl_handle_me_t *meh,
- ptl_md_t *umd, ptl_unlink_t unlink,
- ptl_handle_md_t *handle);
-extern int lib_api_md_bind(nal_t *nal, ptl_md_t *umd, ptl_unlink_t unlink,
- ptl_handle_md_t *handle);
-extern int lib_api_md_unlink (nal_t *nal, ptl_handle_md_t *mdh);
-extern int lib_api_md_update (nal_t *nal, ptl_handle_md_t *mdh,
- ptl_md_t *oldumd, ptl_md_t *newumd,
- ptl_handle_eq_t *testqh);
-
-extern int lib_api_get(nal_t *apinal, ptl_handle_md_t *mdh,
- ptl_process_id_t *id,
- ptl_pt_index_t portal, ptl_ac_index_t ac,
- ptl_match_bits_t match_bits, ptl_size_t offset);
-extern int lib_api_put(nal_t *apinal, ptl_handle_md_t *mdh,
- ptl_ack_req_t ack, ptl_process_id_t *id,
- ptl_pt_index_t portal, ptl_ac_index_t ac,
- ptl_match_bits_t match_bits,
- ptl_size_t offset, ptl_hdr_data_t hdr_data);
-extern int lib_api_fail_nid(nal_t *apinal, ptl_nid_t nid, unsigned int threshold);
+extern void lnet_destroy_peer_locked(lnet_peer_t *lp);
+
+static inline void
+lnet_peer_decref_locked(lnet_peer_t *lp)
+{
+ LASSERT (lp->lp_refcount > 0);
+ lp->lp_refcount--;
+ if (lp->lp_refcount == 0)
+ lnet_destroy_peer_locked(lp);
+}
+
+static inline int
+lnet_isrouter(lnet_peer_t *lp)
+{
+ return lp->lp_rtr_refcount != 0;
+}
+
+static inline void
+lnet_ni_addref_locked(lnet_ni_t *ni)
+{
+ LASSERT (ni->ni_refcount > 0);
+ ni->ni_refcount++;
+}
+
+static inline void
+lnet_ni_addref(lnet_ni_t *ni)
+{
+ LNET_LOCK();
+ lnet_ni_addref_locked(ni);
+ LNET_UNLOCK();
+}
+
+static inline void
+lnet_ni_decref_locked(lnet_ni_t *ni)
+{
+ LASSERT (ni->ni_refcount > 0);
+ ni->ni_refcount--;
+ if (ni->ni_refcount == 0)
+ cfs_list_add_tail(&ni->ni_list, &the_lnet.ln_zombie_nis);
+}
+
+static inline void
+lnet_ni_decref(lnet_ni_t *ni)
+{
+ LNET_LOCK();
+ lnet_ni_decref_locked(ni);
+ LNET_UNLOCK();
+}
+
+static inline int
+lnet_nid2peerhash(lnet_nid_t nid)
+{
+ return cfs_hash_long(nid, LNET_PEER_HASH_BITS);
+}
+
+extern lnd_t the_lolnd;
+
+#ifndef __KERNEL__
+/* unconditional registration */
+#define LNET_REGISTER_ULND(lnd) \
+do { \
+ extern lnd_t lnd; \
+ \
+ lnet_register_lnd(&(lnd)); \
+} while (0)
+
+/* conditional registration */
+#define LNET_REGISTER_ULND_IF_PRESENT(lnd) \
+do { \
+ extern lnd_t lnd __attribute__ ((weak, alias("the_lolnd"))); \
+ \
+ if (&(lnd) != &the_lolnd) \
+ lnet_register_lnd(&(lnd)); \
+} while (0)
+#endif
+
+#ifdef CRAY_XT3
+inline static void
+lnet_set_msg_uid(lnet_ni_t *ni, lnet_msg_t *msg, lnet_uid_t uid)
+{
+ LASSERT (msg->msg_ev.uid == LNET_UID_ANY);
+ msg->msg_ev.uid = uid;
+}
+#endif
+
+extern int lnet_cpt_of_nid(lnet_nid_t nid);
+extern lnet_ni_t *lnet_nid2ni_locked (lnet_nid_t nid);
+extern lnet_ni_t *lnet_net2ni_locked (__u32 net);
+static inline lnet_ni_t *
+lnet_net2ni (__u32 net)
+{
+ lnet_ni_t *ni;
+
+ LNET_LOCK();
+ ni = lnet_net2ni_locked(net);
+ LNET_UNLOCK();
+
+ return ni;
+}
+
+int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, cfs_time_t when);
+void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, cfs_time_t when);
+int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid);
+int lnet_check_routes(void);
+int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
+void lnet_destroy_routes(void);
+int lnet_get_route(int idx, __u32 *net, __u32 *hops,
+ lnet_nid_t *gateway, __u32 *alive);
+void lnet_proc_init(void);
+void lnet_proc_fini(void);
+void lnet_init_rtrpools(void);
+int lnet_alloc_rtrpools(int im_a_router);
+void lnet_free_rtrpools(void);
+lnet_remotenet_t *lnet_find_net_locked (__u32 net);
+
+int lnet_islocalnid(lnet_nid_t nid);
+int lnet_islocalnet(__u32 net);
+
+void lnet_msg_attach_md(lnet_msg_t *msg, lnet_libmd_t *md,
+ unsigned int offset, unsigned int mlen);
+void lnet_msg_detach_md(lnet_msg_t *msg, int status);
+void lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev);
+void lnet_build_msg_event(lnet_msg_t *msg, lnet_event_kind_t ev_type);
+void lnet_msg_commit(lnet_msg_t *msg, int sending);
+void lnet_msg_decommit(lnet_msg_t *msg, int status);
+
+void lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev);
+void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
+ unsigned int offset, unsigned int len);
+int lnet_send(lnet_nid_t nid, lnet_msg_t *msg);
+void lnet_return_tx_credits_locked(lnet_msg_t *msg);
+void lnet_return_rx_credits_locked(lnet_msg_t *msg);
+
+/* portals functions */
+/* portals attributes */
+static inline int
+lnet_ptl_is_lazy(lnet_portal_t *ptl)
+{
+ return !!(ptl->ptl_options & LNET_PTL_LAZY);
+}
+
+static inline int
+lnet_ptl_is_unique(lnet_portal_t *ptl)
+{
+ return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE);
+}
+
+static inline int
+lnet_ptl_is_wildcard(lnet_portal_t *ptl)
+{
+ return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD);
+}
+
+static inline void
+lnet_ptl_setopt(lnet_portal_t *ptl, int opt)
+{
+ ptl->ptl_options |= opt;
+}
+
+static inline void
+lnet_ptl_unsetopt(lnet_portal_t *ptl, int opt)
+{
+ ptl->ptl_options &= ~opt;
+}
+
+/* match-table functions */
+cfs_list_t *lnet_mt_match_head(struct lnet_match_table *mtable,
+ lnet_process_id_t id, __u64 mbits);
+struct lnet_match_table *lnet_mt_of_attach(unsigned int index,
+ lnet_process_id_t id, __u64 mbits,
+ __u64 ignore_bits,
+ lnet_ins_pos_t pos);
+struct lnet_match_table *lnet_mt_of_match(unsigned int index,
+ lnet_process_id_t id, __u64 mbits);
+int lnet_mt_match_md(struct lnet_match_table *mtable,
+ struct lnet_match_info *info, struct lnet_msg *msg);
+
+/* portals match/attach functions */
+void lnet_ptl_attach_md(lnet_me_t *me, lnet_libmd_t *md,
+ cfs_list_t *matches, cfs_list_t *drops);
+void lnet_ptl_detach_md(lnet_me_t *me, lnet_libmd_t *md);
+int lnet_ptl_match_md(struct lnet_match_info *info, struct lnet_msg *msg);
+
+/* initialized and finalize portals */
+int lnet_portals_create(void);
+void lnet_portals_destroy(void);
+
+/* message functions */
+int lnet_parse (lnet_ni_t *ni, lnet_hdr_t *hdr,
+ lnet_nid_t fromnid, void *private, int rdma_req);
+void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
+ unsigned int offset, unsigned int mlen, unsigned int rlen);
+lnet_msg_t *lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *get_msg);
+void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len);
+void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc);
+void lnet_drop_delayed_msg_list(cfs_list_t *head, char *reason);
+void lnet_recv_delayed_msg_list(cfs_list_t *head);
+
+int lnet_msg_container_setup(struct lnet_msg_container *container);
+void lnet_msg_container_cleanup(struct lnet_msg_container *container);
+
+char *lnet_msgtyp2str (int type);
+void lnet_print_hdr (lnet_hdr_t * hdr);
+int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
+
+unsigned int lnet_iov_nob (unsigned int niov, struct iovec *iov);
+int lnet_extract_iov (int dst_niov, struct iovec *dst,
+ int src_niov, struct iovec *src,
+ unsigned int offset, unsigned int len);
+
+unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov);
+int lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
+ int src_niov, lnet_kiov_t *src,
+ unsigned int offset, unsigned int len);
+
+void lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov,
+ unsigned int doffset,
+ unsigned int nsiov, struct iovec *siov,
+ unsigned int soffset, unsigned int nob);
+void lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov,
+ unsigned int iovoffset,
+ unsigned int nkiov, lnet_kiov_t *kiov,
+ unsigned int kiovoffset, unsigned int nob);
+void lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov,
+ unsigned int kiovoffset,
+ unsigned int niov, struct iovec *iov,
+ unsigned int iovoffset, unsigned int nob);
+void lnet_copy_kiov2kiov (unsigned int ndkiov, lnet_kiov_t *dkiov,
+ unsigned int doffset,
+ unsigned int nskiov, lnet_kiov_t *skiov,
+ unsigned int soffset, unsigned int nob);
+
+static inline void
+lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset,
+ unsigned int nsiov, struct iovec *siov, unsigned int soffset,
+ unsigned int nob)
+{
+ struct iovec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen};
+
+ lnet_copy_iov2iov(1, &diov, doffset,
+ nsiov, siov, soffset, nob);
+}
+
+static inline void
+lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset,
+ unsigned int nsiov, lnet_kiov_t *skiov, unsigned int soffset,
+ unsigned int nob)
+{
+ struct iovec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen};
+
+ lnet_copy_kiov2iov(1, &diov, doffset,
+ nsiov, skiov, soffset, nob);
+}
+
+static inline void
+lnet_copy_flat2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset,
+ int slen, void *src, unsigned int soffset, unsigned int nob)
+{
+ struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen};
+ lnet_copy_iov2iov(ndiov, diov, doffset,
+ 1, &siov, soffset, nob);
+}
+
+static inline void
+lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, unsigned int doffset,
+ int slen, void *src, unsigned int soffset, unsigned int nob)
+{
+ struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen};
+ lnet_copy_iov2kiov(ndiov, dkiov, doffset,
+ 1, &siov, soffset, nob);
+}
+
+void lnet_me_unlink(lnet_me_t *me);
+
+void lnet_md_unlink(lnet_libmd_t *md);
+void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd);
+
+void lnet_register_lnd(lnd_t *lnd);
+void lnet_unregister_lnd(lnd_t *lnd);
+int lnet_set_ip_niaddr (lnet_ni_t *ni);
+
+#ifdef __KERNEL__
+int lnet_connect(cfs_socket_t **sockp, lnet_nid_t peer_nid,
+ __u32 local_ip, __u32 peer_ip, int peer_port);
+void lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
+ __u32 peer_ip, int port);
+int lnet_count_acceptor_nis(void);
+int lnet_acceptor_timeout(void);
+int lnet_acceptor_port(void);
+#else
+void lnet_router_checker(void);
+#endif
+
+#ifdef HAVE_LIBPTHREAD
+int lnet_count_acceptor_nis(void);
+int lnet_acceptor_port(void);
+#endif
+
+int lnet_acceptor_start(void);
+void lnet_acceptor_stop(void);
+
+void lnet_get_tunables(void);
+int lnet_peers_start_down(void);
+int lnet_peer_buffer_credits(lnet_ni_t *ni);
+
+int lnet_router_checker_start(void);
+void lnet_router_checker_stop(void);
+void lnet_swap_pinginfo(lnet_ping_info_t *info);
+
+int lnet_ping_target_init(void);
+void lnet_ping_target_fini(void);
+int lnet_ping(lnet_process_id_t id, int timeout_ms,
+ lnet_process_id_t *ids, int n_ids);
+
+int lnet_parse_ip2nets (char **networksp, char *ip2nets);
+int lnet_parse_routes (char *route_str, int *im_a_router);
+int lnet_parse_networks (cfs_list_t *nilist, char *networks);
+
+int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid);
+lnet_peer_t *lnet_find_peer_locked (lnet_nid_t nid);
+void lnet_peer_table_cleanup(void);
+void lnet_peer_table_destroy(void);
+int lnet_peer_table_create(void);
+void lnet_debug_peer(lnet_nid_t nid);
+
+#ifndef __KERNEL__
+static inline int
+lnet_parse_int_tunable(int *value, char *name)
+{
+ char *env = getenv(name);
+ char *end;
+
+ if (env == NULL)
+ return 0;
+
+ *value = strtoull(env, &end, 0);
+ if (*end == 0)
+ return 0;
+
+ CERROR("Can't parse tunable %s=%s\n", name, env);
+ return -EINVAL;
+}
+#endif