*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lnet/include/lnet/lib-lnet.h
*
#define DEFAULT_PEER_CREDITS 8
#define DEFAULT_CREDITS 256
+/* default number of connections per peer */
+#define DEFAULT_CONNS_PER_PEER 0
+
#ifdef HAVE_KERN_SOCK_GETNAME_2ARGS
#define lnet_kernel_getpeername(sock, addr, addrlen) \
kernel_getpeername(sock, addr)
#define in_dev_for_each_ifa_rcu(ifa, in_dev) for_ifa((in_dev))
#endif
+#ifndef fallthrough
+# if defined(__GNUC__) && __GNUC__ >= 7
+# define fallthrough __attribute__((fallthrough)) /* fallthrough */
+# else
+# define fallthrough do {} while (0) /* fallthrough */
+# endif
+#endif
+
int choose_ipv4_src(__u32 *ret,
int interface, __u32 dst_ipaddr, struct net *ns);
extern struct kmem_cache *lnet_mes_cachep; /* MEs kmem_cache */
extern struct kmem_cache *lnet_small_mds_cachep; /* <= LNET_SMALL_MD_SIZE bytes
* MDs kmem_cache */
+extern struct kmem_cache *lnet_udsp_cachep;
extern struct kmem_cache *lnet_rspt_cachep;
extern struct kmem_cache *lnet_msg_cachep;
+static inline bool
+lnet_ni_set_status_locked(struct lnet_ni *ni, __u32 status)
+__must_hold(&ni->ni_lock)
+{
+ bool update = false;
+
+ if (ni->ni_status && ni->ni_status->ns_status != status) {
+ CDEBUG(D_NET, "ni %s status changed from %#x to %#x\n",
+ libcfs_nidstr(&ni->ni_nid),
+ ni->ni_status->ns_status, status);
+ ni->ni_status->ns_status = status;
+ update = true;
+ }
+
+ return update;
+}
+
+static inline unsigned int
+lnet_ni_get_status_locked(struct lnet_ni *ni)
+__must_hold(&ni->ni_lock)
+{
+ if (nid_is_lo0(&ni->ni_nid))
+ return LNET_NI_STATUS_UP;
+ else if (atomic_read(&ni->ni_fatal_error_on))
+ return LNET_NI_STATUS_DOWN;
+ else if (ni->ni_status)
+ return ni->ni_status->ns_status;
+ else
+ return LNET_NI_STATUS_UP;
+}
+
+static inline bool
+lnet_ni_set_status(struct lnet_ni *ni, __u32 status)
+{
+ bool update;
+
+ lnet_ni_lock(ni);
+ update = lnet_ni_set_status_locked(ni, status);
+ lnet_ni_unlock(ni);
+
+ return update;
+}
+
+static inline void lnet_md_wait_handling(struct lnet_libmd *md, int cpt)
+{
+ wait_queue_head_t *wq = __var_waitqueue(md);
+#if defined(HAVE_WAIT_BIT_QUEUE_ENTRY) || !defined(HAVE_WAIT_VAR_EVENT)
+ struct wait_bit_queue_entry entry;
+ wait_queue_entry_t *wqe = &entry.wq_entry;
+#else
+ struct wait_bit_queue entry;
+ wait_queue_entry_t *wqe = &entry.wait;
+#endif
+ init_wait_var_entry(&entry, md, 0);
+ prepare_to_wait_event(wq, wqe, TASK_IDLE);
+ if (md->md_flags & LNET_MD_FLAG_HANDLING) {
+ /* Race with unlocked call to ->md_handler.
+ * It is safe to drop the res_lock here as the
+ * caller has only just claimed it.
+ */
+ lnet_res_unlock(cpt);
+ schedule();
+ /* Cannot check md now, it might be freed. Caller
+ * must reclaim reference and check.
+ */
+ lnet_res_lock(cpt);
+ }
+ finish_wait(wq, wqe);
+}
+
static inline void
lnet_md_free(struct lnet_libmd *md)
{
static inline void
lnet_peer_ni_addref_locked(struct lnet_peer_ni *lp)
{
- LASSERT(atomic_read(&lp->lpni_refcount) > 0);
- atomic_inc(&lp->lpni_refcount);
+ kref_get(&lp->lpni_kref);
}
-extern void lnet_destroy_peer_ni_locked(struct lnet_peer_ni *lp);
+extern void lnet_destroy_peer_ni_locked(struct kref *ref);
static inline void
lnet_peer_ni_decref_locked(struct lnet_peer_ni *lp)
{
- LASSERT(atomic_read(&lp->lpni_refcount) > 0);
- if (atomic_dec_and_test(&lp->lpni_refcount))
- lnet_destroy_peer_ni_locked(lp);
+ kref_put(&lp->lpni_kref, lnet_destroy_peer_ni_locked);
}
static inline int
char *iface);
static inline int
-lnet_nid2peerhash(lnet_nid_t nid)
+lnet_nid2peerhash(struct lnet_nid *nid)
{
- return hash_long(nid, LNET_PEER_HASH_BITS);
+ u32 h = 0;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ h = hash_32(nid->nid_addr[i]^h, 32);
+ return hash_32(LNET_NID_NET(nid) ^ h, LNET_PEER_HASH_BITS);
}
static inline struct list_head *
((1U << the_lnet.ln_remote_nets_hbits) - 1)];
}
+static inline void lnet_hdr_from_nid4(struct lnet_hdr *hdr,
+ const struct lnet_hdr_nid4 *vhdr)
+{
+ const struct _lnet_hdr_nid4 *hdr_nid4 = (void *)vhdr;
+
+ lnet_nid4_to_nid(le64_to_cpu(hdr_nid4->dest_nid), &hdr->dest_nid);
+ lnet_nid4_to_nid(le64_to_cpu(hdr_nid4->src_nid), &hdr->src_nid);
+ hdr->dest_pid = le32_to_cpu(hdr_nid4->dest_pid);
+ hdr->src_pid = le32_to_cpu(hdr_nid4->src_pid);
+ hdr->type = le32_to_cpu(hdr_nid4->type);
+ hdr->payload_length = le32_to_cpu(hdr_nid4->payload_length);
+
+ hdr->msg = hdr_nid4->msg;
+}
+
+static inline void lnet_hdr_to_nid4(const struct lnet_hdr *hdr,
+ struct lnet_hdr_nid4 *vhdr)
+{
+ struct _lnet_hdr_nid4 *hdr_nid4 = (void *)vhdr;
+
+ hdr_nid4->dest_nid = cpu_to_le64(lnet_nid_to_nid4(&hdr->dest_nid));
+ hdr_nid4->src_nid = cpu_to_le64(lnet_nid_to_nid4(&hdr->src_nid));
+ hdr_nid4->dest_pid = cpu_to_le32(hdr->dest_pid);
+ hdr_nid4->src_pid = cpu_to_le32(hdr->src_pid);
+ hdr_nid4->type = cpu_to_le32(hdr->type);
+ hdr_nid4->payload_length = cpu_to_le32(hdr->payload_length);
+
+ hdr_nid4->msg = hdr->msg;
+}
+
+static inline void lnet_hdr_from_nid16(struct lnet_hdr *hdr,
+ const struct lnet_hdr_nid16 *vhdr)
+{
+ const struct lnet_hdr *hdr16 = (void *)vhdr;
+
+ hdr->dest_nid = hdr16->dest_nid;
+ hdr->src_nid = hdr16->src_nid;
+ hdr->dest_pid = le32_to_cpu(hdr16->dest_pid);
+ hdr->src_pid = le32_to_cpu(hdr16->src_pid);
+ hdr->type = le32_to_cpu(hdr16->type);
+ hdr->payload_length = le32_to_cpu(hdr16->payload_length);
+}
+
+static inline void lnet_hdr_to_nid16(const struct lnet_hdr *hdr,
+ struct lnet_hdr_nid16 *vhdr)
+{
+ struct lnet_hdr *hdr16 = (void *)vhdr;
+
+ hdr16->dest_nid = hdr->dest_nid;
+ hdr16->src_nid = hdr->src_nid;
+ hdr16->dest_pid = cpu_to_le32(hdr->dest_pid);
+ hdr16->src_pid = cpu_to_le32(hdr->src_pid);
+ hdr16->type = cpu_to_le32(hdr->type);
+ hdr16->payload_length = cpu_to_le32(hdr->payload_length);
+}
+
extern const struct lnet_lnd the_lolnd;
extern int avoid_asym_router_failure;
-extern unsigned int lnet_nid_cpt_hash(lnet_nid_t nid, unsigned int number);
-extern int lnet_cpt_of_nid_locked(lnet_nid_t nid, struct lnet_ni *ni);
+extern unsigned int lnet_nid_cpt_hash(struct lnet_nid *nid,
+ unsigned int number);
+extern int lnet_cpt_of_nid_locked(struct lnet_nid *nid, struct lnet_ni *ni);
extern int lnet_cpt_of_nid(lnet_nid_t nid, struct lnet_ni *ni);
+extern int lnet_nid2cpt(struct lnet_nid *nid, struct lnet_ni *ni);
extern struct lnet_ni *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
+extern struct lnet_ni *lnet_nid_to_ni_locked(struct lnet_nid *nid, int cpt);
extern struct lnet_ni *lnet_nid2ni_addref(lnet_nid_t nid);
extern struct lnet_ni *lnet_net2ni_locked(__u32 net, int cpt);
extern struct lnet_ni *lnet_net2ni_addref(__u32 net);
+extern struct lnet_ni *lnet_nid_to_ni_addref(struct lnet_nid *nid);
struct lnet_net *lnet_get_net_locked(__u32 net_id);
int lnet_lib_init(void);
extern unsigned int lnet_numa_range;
extern unsigned int lnet_health_sensitivity;
extern unsigned int lnet_recovery_interval;
+extern unsigned int lnet_recovery_limit;
extern unsigned int lnet_peer_discovery_disabled;
extern unsigned int lnet_drop_asym_route;
+extern unsigned int lnet_max_recovery_ping_interval;
+extern unsigned int lnet_max_recovery_ping_count;
extern unsigned int router_sensitivity_percentage;
extern int alive_router_check_interval;
extern int live_router_check_interval;
time64_t when);
void lnet_notify_locked(struct lnet_peer_ni *lp, int notifylnd, int alive,
time64_t when);
-int lnet_add_route(__u32 net, __u32 hops, lnet_nid_t gateway_nid,
+int lnet_add_route(__u32 net, __u32 hops, struct lnet_nid *gateway,
__u32 priority, __u32 sensitivity);
-int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
+int lnet_del_route(__u32 net, struct lnet_nid *gw_nid);
void lnet_move_route(struct lnet_route *route, struct lnet_peer *lp,
struct list_head *rt_list);
void lnet_destroy_routes(void);
struct lnet_ni *lnet_get_next_ni_locked(struct lnet_net *mynet,
struct lnet_ni *prev);
struct lnet_ni *lnet_get_ni_idx_locked(int idx);
+int lnet_get_net_healthv_locked(struct lnet_net *net);
extern int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
struct libcfs_ioctl_hdr __user *uparam);
extern int lnet_get_peer_list(__u32 *countp, __u32 *sizep,
struct lnet_process_id __user *ids);
extern void lnet_peer_ni_set_healthv(lnet_nid_t nid, int value, bool all);
-extern void lnet_peer_ni_add_to_recoveryq_locked(struct lnet_peer_ni *lpni);
+extern void lnet_peer_ni_add_to_recoveryq_locked(struct lnet_peer_ni *lpni,
+ struct list_head *queue,
+ time64_t now);
+extern int lnet_peer_add_pref_nid(struct lnet_peer_ni *lpni,
+ struct lnet_nid *nid);
+extern void lnet_peer_clr_pref_nids(struct lnet_peer_ni *lpni);
+extern int lnet_peer_del_pref_nid(struct lnet_peer_ni *lpni,
+ struct lnet_nid *nid);
+void lnet_peer_ni_set_selection_priority(struct lnet_peer_ni *lpni,
+ __u32 priority);
+extern void lnet_ni_add_to_recoveryq_locked(struct lnet_ni *ni,
+ struct list_head *queue,
+ time64_t now);
void lnet_router_debugfs_init(void);
void lnet_router_debugfs_fini(void);
int lnet_dyn_del_ni(struct lnet_ioctl_config_ni *conf);
int lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason);
struct lnet_net *lnet_get_net_locked(__u32 net_id);
+void lnet_net_clr_pref_rtrs(struct lnet_net *net);
+int lnet_net_add_pref_rtr(struct lnet_net *net, struct lnet_nid *gw_nid);
-int lnet_islocalnid(lnet_nid_t nid);
+int lnet_islocalnid(struct lnet_nid *nid);
int lnet_islocalnet(__u32 net);
int lnet_islocalnet_locked(__u32 net);
void lnet_msg_decommit(struct lnet_msg *msg, int cpt, int status);
void lnet_prep_send(struct lnet_msg *msg, int type,
- struct lnet_process_id target, unsigned int offset,
+ struct lnet_processid *target, unsigned int offset,
unsigned int len);
-int lnet_send(lnet_nid_t nid, struct lnet_msg *msg, lnet_nid_t rtr_nid);
-int lnet_send_ping(lnet_nid_t dest_nid, struct lnet_handle_md *mdh, int nnis,
- void *user_ptr, lnet_handler_t handler, bool recovery);
+int lnet_send(struct lnet_nid *nid, struct lnet_msg *msg,
+ struct lnet_nid *rtr_nid);
+int lnet_send_ping(struct lnet_nid *dest_nid, struct lnet_handle_md *mdh,
+ int nnis, void *user_ptr, lnet_handler_t handler,
+ bool recovery);
void lnet_return_tx_credits_locked(struct lnet_msg *msg);
void lnet_return_rx_credits_locked(struct lnet_msg *msg);
void lnet_schedule_blocked_locked(struct lnet_rtrbufpool *rbp);
/* match-table functions */
struct list_head *lnet_mt_match_head(struct lnet_match_table *mtable,
- struct lnet_process_id id, __u64 mbits);
+ struct lnet_processid *id, __u64 mbits);
struct lnet_match_table *lnet_mt_of_attach(unsigned int index,
- struct lnet_process_id id,
+ struct lnet_processid *id,
__u64 mbits, __u64 ignore_bits,
enum lnet_ins_pos pos);
int lnet_mt_match_md(struct lnet_match_table *mtable,
/* message functions */
int lnet_parse(struct lnet_ni *ni, struct lnet_hdr *hdr,
- lnet_nid_t fromnid, void *private, int rdma_req);
+ struct lnet_nid *fromnid, void *private, int rdma_req);
int lnet_parse_local(struct lnet_ni *ni, struct lnet_msg *msg);
int lnet_parse_forward_locked(struct lnet_ni *ni, struct lnet_msg *msg);
void lnet_ni_recv(struct lnet_ni *ni, void *private, struct lnet_msg *msg,
int delayed, unsigned int offset,
unsigned int mlen, unsigned int rlen);
+void lnet_ni_send(struct lnet_ni *ni, struct lnet_msg *msg);
struct lnet_msg *lnet_create_reply_msg(struct lnet_ni *ni,
struct lnet_msg *get_msg);
void lnet_detach_rsp_tracker(struct lnet_libmd *md, int cpt);
void lnet_clean_zombie_rstqs(void);
+bool lnet_md_discarded(struct lnet_libmd *md);
void lnet_finalize(struct lnet_msg *msg, int rc);
bool lnet_send_error_simulation(struct lnet_msg *msg,
enum lnet_msg_hstatus *hstatus);
char *lnet_health_error2str(enum lnet_msg_hstatus hstatus);
char *lnet_msgtyp2str(int type);
-void lnet_print_hdr(struct lnet_hdr *hdr);
int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
/** \addtogroup lnet_fault_simulation @{ */
int lnet_fault_init(void);
void lnet_fault_fini(void);
-bool lnet_drop_rule_match(struct lnet_hdr *hdr, lnet_nid_t local_nid,
+bool lnet_drop_rule_match(struct lnet_hdr *hdr, struct lnet_nid *local_nid,
enum lnet_msg_hstatus *hstatus);
int lnet_delay_rule_add(struct lnet_fault_attr *attr);
/** @} lnet_fault_simulation */
void lnet_counters_get_common(struct lnet_counters_common *common);
-void lnet_counters_get(struct lnet_counters *counters);
+int lnet_counters_get(struct lnet_counters *counters);
void lnet_counters_reset(void);
+static inline void
+lnet_ni_set_sel_priority_locked(struct lnet_ni *ni, __u32 priority)
+{
+ ni->ni_sel_priority = priority;
+}
+
+static inline void
+lnet_net_set_sel_priority_locked(struct lnet_net *net, __u32 priority)
+{
+ net->net_sel_priority = priority;
+}
unsigned int lnet_iov_nob(unsigned int niov, struct kvec *iov);
unsigned int lnet_kiov_nob(unsigned int niov, struct bio_vec *iov);
void lnet_md_unlink(struct lnet_libmd *md);
void lnet_md_deconstruct(struct lnet_libmd *lmd, struct lnet_event *ev);
struct page *lnet_kvaddr_to_page(unsigned long vaddr);
+struct page *lnet_get_first_page(struct lnet_libmd *md, unsigned int offset);
int lnet_cpt_of_md(struct lnet_libmd *md, unsigned int offset);
unsigned int lnet_get_lnd_timeout(void);
void lnet_register_lnd(const struct lnet_lnd *lnd);
void lnet_unregister_lnd(const struct lnet_lnd *lnd);
-struct socket *lnet_connect(lnet_nid_t peer_nid, int interface, __u32 peer_ip,
- int peer_port, struct net *ns);
-void lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
- __u32 peer_ip, int port);
+struct socket *lnet_connect(struct lnet_nid *peer_nid, int interface,
+ struct sockaddr *peeraddr, struct net *ns);
+void lnet_connect_console_error(int rc, struct lnet_nid *peer_nid,
+ struct sockaddr *sa);
int lnet_count_acceptor_nets(void);
int lnet_acceptor_timeout(void);
int lnet_acceptor_port(void);
};
int lnet_inet_enumerate(struct lnet_inetdev **dev_list, struct net *ns);
-int lnet_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize);
-int lnet_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize);
-int lnet_sock_getaddr(struct socket *socket, bool remote, __u32 *ip, int *port);
+void lnet_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize);
+void lnet_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize);
+int lnet_sock_getaddr(struct socket *socket, bool remote,
+ struct sockaddr_storage *peer);
int lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout);
int lnet_sock_read(struct socket *sock, void *buffer, int nob, int timeout);
int lnet_parse_ip2nets(const char **networksp, const char *ip2nets);
int lnet_parse_routes(const char *route_str, int *im_a_router);
-int lnet_parse_networks(struct list_head *nilist, const char *networks,
- bool use_tcp_bonding);
+int lnet_parse_networks(struct list_head *nilist, const char *networks);
bool lnet_net_unique(__u32 net_id, struct list_head *nilist,
struct lnet_net **net);
bool lnet_ni_unique_net(struct list_head *nilist, char *iface);
void lnet_incr_dlc_seq(void);
__u32 lnet_get_dlc_seq_locked(void);
-int lnet_get_net_count(void);
-extern unsigned int lnet_current_net_count;
struct lnet_peer_net *lnet_get_next_peer_net_locked(struct lnet_peer *lp,
__u32 prev_lpn_id);
struct lnet_peer_ni *prev);
struct lnet_peer_ni *lnet_nid2peerni_locked(lnet_nid_t nid, lnet_nid_t pref,
int cpt);
-struct lnet_peer_ni *lnet_nid2peerni_ex(lnet_nid_t nid, int cpt);
+struct lnet_peer_ni *lnet_peerni_by_nid_locked(struct lnet_nid *nid,
+ struct lnet_nid *pref,
+ int cpt);
+struct lnet_peer_ni *lnet_nid2peerni_ex(struct lnet_nid *nid);
struct lnet_peer_ni *lnet_peer_get_ni_locked(struct lnet_peer *lp,
lnet_nid_t nid);
+struct lnet_peer_ni *lnet_peer_ni_get_locked(struct lnet_peer *lp,
+ struct lnet_nid *nid);
struct lnet_peer_ni *lnet_find_peer_ni_locked(lnet_nid_t nid);
-struct lnet_peer *lnet_find_peer(lnet_nid_t nid);
+struct lnet_peer_ni *lnet_peer_ni_find_locked(struct lnet_nid *nid);
+struct lnet_peer *lnet_find_peer4(lnet_nid_t nid);
+struct lnet_peer *lnet_find_peer(struct lnet_nid *nid);
void lnet_peer_net_added(struct lnet_net *net);
-lnet_nid_t lnet_peer_primary_nid_locked(lnet_nid_t nid);
+void lnet_peer_primary_nid_locked(struct lnet_nid *nid,
+ struct lnet_nid *result);
int lnet_discover_peer_locked(struct lnet_peer_ni *lpni, int cpt, bool block);
+void lnet_peer_queue_message(struct lnet_peer *lp, struct lnet_msg *msg);
int lnet_peer_discovery_start(void);
void lnet_peer_discovery_stop(void);
void lnet_push_update_to_peers(int force);
void lnet_debug_peer(lnet_nid_t nid);
struct lnet_peer_net *lnet_peer_get_net_locked(struct lnet_peer *peer,
__u32 net_id);
-bool lnet_peer_is_pref_nid_locked(struct lnet_peer_ni *lpni, lnet_nid_t nid);
-int lnet_peer_ni_set_non_mr_pref_nid(struct lnet_peer_ni *lpni, lnet_nid_t nid);
-int lnet_add_peer_ni(lnet_nid_t key_nid, lnet_nid_t nid, bool mr);
+bool lnet_peer_is_pref_nid_locked(struct lnet_peer_ni *lpni,
+ struct lnet_nid *nid);
+int lnet_peer_add_pref_nid(struct lnet_peer_ni *lpni, struct lnet_nid *nid);
+void lnet_peer_clr_pref_nids(struct lnet_peer_ni *lpni);
+bool lnet_peer_is_pref_rtr_locked(struct lnet_peer_ni *lpni,
+ struct lnet_nid *gw_nid);
+void lnet_peer_clr_pref_rtrs(struct lnet_peer_ni *lpni);
+int lnet_peer_add_pref_rtr(struct lnet_peer_ni *lpni, struct lnet_nid *nid);
+int lnet_peer_ni_set_non_mr_pref_nid(struct lnet_peer_ni *lpni,
+ struct lnet_nid *nid);
+int lnet_add_peer_ni(lnet_nid_t key_nid, lnet_nid_t nid, bool mr, bool temp);
int lnet_del_peer_ni(lnet_nid_t key_nid, lnet_nid_t nid);
int lnet_get_peer_info(struct lnet_ioctl_peer_cfg *cfg, void __user *bulk);
int lnet_get_peer_ni_info(__u32 peer_index, __u64 *nid,
__u32 *peer_tx_qnob);
int lnet_get_peer_ni_hstats(struct lnet_ioctl_peer_ni_hstats *stats);
+static inline void
+lnet_peer_net_set_sel_priority_locked(struct lnet_peer_net *lpn, __u32 priority)
+{
+ lpn->lpn_sel_priority = priority;
+}
+
+
static inline struct lnet_peer_net *
lnet_find_peer_net_locked(struct lnet_peer *peer, __u32 net_id)
{
static inline bool
lnet_peer_ni_is_primary(struct lnet_peer_ni *lpni)
{
- return lpni->lpni_nid == lpni->lpni_peer_net->lpn_peer->lp_primary_nid;
+ return nid_same(&lpni->lpni_nid,
+ &lpni->lpni_peer_net->lpn_peer->lp_primary_nid);
}
bool lnet_peer_is_uptodate(struct lnet_peer *lp);
{
if (!(lp->lp_state & LNET_PEER_MULTI_RAIL))
return false;
+ if (lp->lp_state & LNET_PEER_MARK_DELETED)
+ return false;
if (lp->lp_state & LNET_PEER_FORCE_PUSH)
return true;
if (lp->lp_state & LNET_PEER_NO_DISCOVERY)
return false;
}
+static inline unsigned int
+lnet_get_next_recovery_ping(unsigned int ping_count, time64_t now)
+{
+ unsigned int interval;
+
+ /* lnet_max_recovery_interval <= 2^lnet_max_recovery_ping_count */
+ if (ping_count > lnet_max_recovery_ping_count)
+ interval = lnet_max_recovery_ping_interval;
+ else
+ interval = 1 << ping_count;
+
+ return now + interval;
+}
+
+static inline void
+lnet_peer_ni_set_next_ping(struct lnet_peer_ni *lpni, time64_t now)
+{
+ lpni->lpni_next_ping =
+ lnet_get_next_recovery_ping(lpni->lpni_ping_count, now);
+}
+
+static inline void
+lnet_ni_set_next_ping(struct lnet_ni *ni, time64_t now)
+{
+ ni->ni_next_ping = lnet_get_next_recovery_ping(ni->ni_ping_count, now);
+}
+
/*
* A peer NI is alive if it satisfies the following two conditions:
* 1. peer NI health >= LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage
lnet_atomic_add_unless_max(healthv, value, LNET_MAX_HEALTH_VALUE);
}
+static inline int
+lnet_get_list_len(struct list_head *list)
+{
+ struct list_head *l;
+ int count = 0;
+
+ list_for_each(l, list)
+ count++;
+
+ return count;
+}
+
void lnet_incr_stats(struct lnet_element_stats *stats,
enum lnet_msg_type msg_type,
enum lnet_stats_type stats_type);
void lnet_usr_translate_stats(struct lnet_ioctl_element_msg_stats *msg_stats,
struct lnet_element_stats *stats);
+static inline void
+lnet_set_route_aliveness(struct lnet_route *route, bool alive)
+{
+ bool old = atomic_xchg(&route->lr_alive, alive);
+
+ if (old != alive)
+ CERROR("route to %s through %s has gone from %s to %s\n",
+ libcfs_net2str(route->lr_net),
+ libcfs_nidstr(&route->lr_gateway->lp_primary_nid),
+ old ? "up" : "down",
+ alive ? "up" : "down");
+}
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff