#ifndef __LNET_LIB_LNET_H__
#define __LNET_LIB_LNET_H__
-#ifndef __KERNEL__
-# error This include is only for kernel use.
-#endif
+/* LNET has 0xeXXX */
+#define CFS_FAIL_PTLRPC_OST_BULK_CB2 0xe000
+
+#include <linux/netdevice.h>
#include <libcfs/libcfs.h>
#include <lnet/api.h>
/* default timeout */
#define DEFAULT_PEER_TIMEOUT 180
+#define LNET_LND_DEFAULT_TIMEOUT 5
+
+#ifdef HAVE_KERN_SOCK_GETNAME_2ARGS
+#define lnet_kernel_getpeername(sock, addr, addrlen) \
+ kernel_getpeername(sock, addr)
+#define lnet_kernel_getsockname(sock, addr, addrlen) \
+ kernel_getsockname(sock, addr)
+#else
+#define lnet_kernel_getpeername(sock, addr, addrlen) \
+ kernel_getpeername(sock, addr, addrlen)
+#define lnet_kernel_getsockname(sock, addr, addrlen) \
+ kernel_getsockname(sock, addr, addrlen)
+#endif
-static inline int lnet_is_route_alive(struct lnet_route *route)
-{
- if (!route->lr_gateway->lpni_alive)
- return 0; /* gateway is down */
- if ((route->lr_gateway->lpni_ping_feats &
- LNET_PING_FEAT_NI_STATUS) == 0)
- return 1; /* no NI status, assume it's alive */
- /* has NI status, check # down NIs */
- return route->lr_downis == 0;
-}
+/*
+ * kernel 5.3: commit ef11db3310e272d3d8dbe8739e0770820dd20e52
+ * added in_dev_for_each_ifa_rtnl and in_dev_for_each_ifa_rcu
+ * and removed for_ifa and endfor_ifa.
+ * Use the _rntl variant as the current locking is rtnl.
+ */
+#ifdef in_dev_for_each_ifa_rtnl
+#define DECLARE_CONST_IN_IFADDR(ifa) const struct in_ifaddr *ifa
+#define endfor_ifa(in_dev)
+#else
+#define DECLARE_CONST_IN_IFADDR(ifa)
+#define in_dev_for_each_ifa_rtnl(ifa, in_dev) for_ifa((in_dev))
+#define in_dev_for_each_ifa_rcu(ifa, in_dev) for_ifa((in_dev))
+#endif
+
+int choose_ipv4_src(__u32 *ret,
+ int interface, __u32 dst_ipaddr, struct net *ns);
+
+bool lnet_is_route_alive(struct lnet_route *route);
+bool lnet_is_gateway_alive(struct lnet_peer *gw);
static inline int lnet_is_wire_handle_none(struct lnet_handle_wire *wh)
{
#define lnet_ptl_lock(ptl) spin_lock(&(ptl)->ptl_lock)
#define lnet_ptl_unlock(ptl) spin_unlock(&(ptl)->ptl_lock)
-#define lnet_eq_wait_lock() spin_lock(&the_lnet.ln_eq_wait_lock)
-#define lnet_eq_wait_unlock() spin_unlock(&the_lnet.ln_eq_wait_lock)
#define lnet_ni_lock(ni) spin_lock(&(ni)->ni_lock)
#define lnet_ni_unlock(ni) spin_unlock(&(ni)->ni_lock)
#define MAX_PORTALS 64
-#define LNET_SMALL_MD_SIZE offsetof(struct lnet_libmd, md_iov.iov[1])
+#define LNET_SMALL_MD_SIZE offsetof(struct lnet_libmd, md_kiov[1])
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 */
-
-static inline struct lnet_eq *
-lnet_eq_alloc (void)
-{
- struct lnet_eq *eq;
-
- LIBCFS_ALLOC(eq, sizeof(*eq));
- return (eq);
-}
-
-static inline void
-lnet_eq_free(struct lnet_eq *eq)
-{
- LIBCFS_FREE(eq, sizeof(*eq));
-}
-
-static inline struct lnet_libmd *
-lnet_md_alloc(struct lnet_md *umd)
-{
- struct lnet_libmd *md;
- unsigned int size;
- unsigned int niov;
-
- if ((umd->options & LNET_MD_KIOV) != 0) {
- niov = umd->length;
- size = offsetof(struct lnet_libmd, md_iov.kiov[niov]);
- } else {
- niov = ((umd->options & LNET_MD_IOVEC) != 0) ?
- umd->length : 1;
- size = offsetof(struct lnet_libmd, md_iov.iov[niov]);
- }
-
- if (size <= LNET_SMALL_MD_SIZE) {
- md = kmem_cache_alloc(lnet_small_mds_cachep,
- GFP_NOFS | __GFP_ZERO);
- if (md) {
- CDEBUG(D_MALLOC, "slab-alloced 'md' of size %u at "
- "%p.\n", size, md);
- } else {
- CDEBUG(D_MALLOC, "failed to allocate 'md' of size %u\n",
- size);
- return NULL;
- }
- } else {
- LIBCFS_ALLOC(md, size);
- }
-
- if (md != NULL) {
- /* Set here in case of early free */
- md->md_options = umd->options;
- md->md_niov = niov;
- INIT_LIST_HEAD(&md->md_list);
- }
-
- return md;
-}
+extern struct kmem_cache *lnet_rspt_cachep;
+extern struct kmem_cache *lnet_msg_cachep;
static inline void
lnet_md_free(struct lnet_libmd *md)
{
unsigned int size;
- if ((md->md_options & LNET_MD_KIOV) != 0)
- size = offsetof(struct lnet_libmd, md_iov.kiov[md->md_niov]);
- else
- size = offsetof(struct lnet_libmd, md_iov.iov[md->md_niov]);
+ LASSERTF(md->md_rspt_ptr == NULL, "md %p rsp %p\n", md, md->md_rspt_ptr);
+
+ size = offsetof(struct lnet_libmd, md_kiov[md->md_niov]);
if (size <= LNET_SMALL_MD_SIZE) {
CDEBUG(D_MALLOC, "slab-freed 'md' at %p.\n", md);
}
}
-static inline struct lnet_me *
-lnet_me_alloc (void)
-{
- struct lnet_me *me;
-
- me = kmem_cache_alloc(lnet_mes_cachep, GFP_NOFS | __GFP_ZERO);
-
- if (me)
- CDEBUG(D_MALLOC, "slab-alloced 'me' at %p.\n", me);
- else
- CDEBUG(D_MALLOC, "failed to allocate 'me'\n");
-
- return me;
-}
-
-static inline void
-lnet_me_free(struct lnet_me *me)
-{
- CDEBUG(D_MALLOC, "slab-freed 'me' at %p.\n", me);
- kmem_cache_free(lnet_mes_cachep, me);
-}
-
struct lnet_libhandle *lnet_res_lh_lookup(struct lnet_res_container *rec,
__u64 cookie);
void lnet_res_lh_initialize(struct lnet_res_container *rec,
}
static inline void
-lnet_eq2handle(struct lnet_handle_eq *handle, struct lnet_eq *eq)
-{
- if (eq == NULL) {
- LNetInvalidateEQHandle(handle);
- return;
- }
-
- handle->cookie = eq->eq_lh.lh_cookie;
-}
-
-static inline struct lnet_eq *
-lnet_handle2eq(struct lnet_handle_eq *handle)
-{
- /* ALWAYS called with resource lock held */
- struct lnet_libhandle *lh;
-
- lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie);
- if (lh == NULL)
- return NULL;
-
- return lh_entry(lh, struct lnet_eq, eq_lh);
-}
-
-static inline void
lnet_md2handle(struct lnet_handle_md *handle, struct lnet_libmd *md)
{
handle->cookie = md->md_lh.lh_cookie;
}
static inline void
-lnet_me2handle(struct lnet_handle_me *handle, struct lnet_me *me)
-{
- handle->cookie = me->me_lh.lh_cookie;
-}
-
-static inline struct lnet_me *
-lnet_handle2me(struct lnet_handle_me *handle)
-{
- /* ALWAYS called with resource lock held */
- struct lnet_libhandle *lh;
- int cpt;
-
- cpt = lnet_cpt_of_cookie(handle->cookie);
- lh = lnet_res_lh_lookup(the_lnet.ln_me_containers[cpt],
- handle->cookie);
- if (lh == NULL)
- return NULL;
-
- return lh_entry(lh, struct lnet_me, me_lh);
-}
-
-static inline void
lnet_peer_net_addref_locked(struct lnet_peer_net *lpn)
{
atomic_inc(&lpn->lpn_refcount);
}
static inline int
-lnet_isrouter(struct lnet_peer_ni *lp)
+lnet_isrouter(struct lnet_peer_ni *lpni)
{
- return lp->lpni_rtr_refcount != 0;
+ return lpni->lpni_peer_net->lpn_peer->lp_rtr_refcount != 0;
}
static inline void
{
struct lnet_msg *msg;
- LIBCFS_ALLOC(msg, sizeof(*msg));
+ msg = kmem_cache_zalloc(lnet_msg_cachep, GFP_NOFS);
- /* no need to zero, LIBCFS_ALLOC does for us */
return (msg);
}
lnet_msg_free(struct lnet_msg *msg)
{
LASSERT(!msg->msg_onactivelist);
- LIBCFS_FREE(msg, sizeof(*msg));
+ kmem_cache_free(lnet_msg_cachep, msg);
+}
+
+static inline struct lnet_rsp_tracker *
+lnet_rspt_alloc(int cpt)
+{
+ struct lnet_rsp_tracker *rspt;
+
+ rspt = kmem_cache_zalloc(lnet_rspt_cachep, GFP_NOFS);
+ if (rspt) {
+ lnet_net_lock(cpt);
+ the_lnet.ln_counters[cpt]->lct_health.lch_rst_alloc++;
+ lnet_net_unlock(cpt);
+ }
+ CDEBUG(D_MALLOC, "rspt alloc %p\n", rspt);
+ return rspt;
+}
+
+static inline void
+lnet_rspt_free(struct lnet_rsp_tracker *rspt, int cpt)
+{
+ CDEBUG(D_MALLOC, "rspt free %p\n", rspt);
+
+ kmem_cache_free(lnet_rspt_cachep, rspt);
+ lnet_net_lock(cpt);
+ the_lnet.ln_counters[cpt]->lct_health.lch_rst_alloc--;
+ lnet_net_unlock(cpt);
}
void lnet_ni_free(struct lnet_ni *ni);
((1U << the_lnet.ln_remote_nets_hbits) - 1)];
}
-extern struct lnet_lnd the_lolnd;
+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 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);
-bool lnet_is_ni_healthy_locked(struct lnet_ni *ni);
struct lnet_net *lnet_get_net_locked(__u32 net_id);
int lnet_lib_init(void);
void lnet_lib_exit(void);
extern unsigned lnet_transaction_timeout;
+extern unsigned lnet_retry_count;
extern unsigned int lnet_numa_range;
+extern unsigned int lnet_health_sensitivity;
+extern unsigned int lnet_recovery_interval;
extern unsigned int lnet_peer_discovery_disabled;
+extern unsigned int lnet_drop_asym_route;
+extern unsigned int router_sensitivity_percentage;
+extern int alive_router_check_interval;
+extern int live_router_check_interval;
+extern int dead_router_check_interval;
extern int portal_rotor;
-int lnet_notify(struct lnet_ni *ni, lnet_nid_t peer, int alive,
+void lnet_mt_event_handler(struct lnet_event *event);
+
+int lnet_notify(struct lnet_ni *ni, lnet_nid_t peer, bool alive, bool reset,
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,
- unsigned int priority);
-int lnet_check_routes(void);
+ __u32 priority, __u32 sensitivity);
int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
+void lnet_move_route(struct lnet_route *route, struct lnet_peer *lp,
+ struct list_head *rt_list);
void lnet_destroy_routes(void);
int lnet_get_route(int idx, __u32 *net, __u32 *hops,
- lnet_nid_t *gateway, __u32 *alive, __u32 *priority);
+ lnet_nid_t *gateway, __u32 *alive, __u32 *priority,
+ __u32 *sensitivity);
int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg);
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);
-struct libcfs_ioctl_handler {
- struct list_head item;
- int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
-};
-
-#define DECLARE_IOCTL_HANDLER(ident, func) \
- static struct libcfs_ioctl_handler ident = { \
- .item = LIST_HEAD_INIT(ident.item), \
- .handle_ioctl = func \
- }
-
-extern int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
-extern int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
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);
void lnet_router_debugfs_init(void);
void lnet_router_debugfs_fini(void);
int lnet_rtrpools_enable(void);
void lnet_rtrpools_disable(void);
void lnet_rtrpools_free(int keep_pools);
+void lnet_rtr_transfer_to_peer(struct lnet_peer *src,
+ struct lnet_peer *target);
struct lnet_remotenet *lnet_find_rnet_locked(__u32 net);
int lnet_dyn_add_net(struct lnet_ioctl_config_data *conf);
int lnet_dyn_del_net(__u32 net);
int lnet_islocalnid(lnet_nid_t nid);
int lnet_islocalnet(__u32 net);
+int lnet_islocalnet_locked(__u32 net);
void lnet_msg_attach_md(struct lnet_msg *msg, struct lnet_libmd *md,
unsigned int offset, unsigned int mlen);
-void lnet_msg_detach_md(struct lnet_msg *msg, int status);
void lnet_build_unlink_event(struct lnet_libmd *md, struct lnet_event *ev);
void lnet_build_msg_event(struct lnet_msg *msg, enum lnet_event_kind ev_type);
void lnet_msg_commit(struct lnet_msg *msg, int cpt);
void lnet_msg_decommit(struct lnet_msg *msg, int cpt, int status);
-void lnet_eq_enqueue_event(struct lnet_eq *eq, struct lnet_event *ev);
void lnet_prep_send(struct lnet_msg *msg, int type,
struct lnet_process_id 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);
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);
void lnet_drop_routed_msgs_locked(struct list_head *list, int cpt);
+struct list_head **lnet_create_array_of_queues(void);
+
/* portals functions */
/* portals attributes */
static inline int
struct lnet_msg *get_msg);
void lnet_set_reply_msg_len(struct lnet_ni *ni, struct lnet_msg *msg,
unsigned int len);
+void lnet_detach_rsp_tracker(struct lnet_libmd *md, int cpt);
+void lnet_clean_zombie_rstqs(void);
void lnet_finalize(struct lnet_msg *msg, int rc);
+bool lnet_send_error_simulation(struct lnet_msg *msg,
+ enum lnet_msg_hstatus *hstatus);
+void lnet_handle_remote_failure_locked(struct lnet_peer_ni *lpni);
void lnet_drop_message(struct lnet_ni *ni, int cpt, void *private,
unsigned int nob, __u32 msg_type);
void lnet_msg_containers_destroy(void);
int lnet_msg_containers_create(void);
+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);
int lnet_fault_init(void);
void lnet_fault_fini(void);
-bool lnet_drop_rule_match(struct lnet_hdr *hdr);
+bool lnet_drop_rule_match(struct lnet_hdr *hdr, lnet_nid_t local_nid,
+ enum lnet_msg_hstatus *hstatus);
int lnet_delay_rule_add(struct lnet_fault_attr *attr);
int lnet_delay_rule_del(lnet_nid_t src, lnet_nid_t dst, bool shutdown);
/** @} lnet_fault_simulation */
+void lnet_counters_get_common(struct lnet_counters_common *common);
void lnet_counters_get(struct lnet_counters *counters);
void lnet_counters_reset(void);
unsigned int lnet_iov_nob(unsigned int niov, struct kvec *iov);
-int lnet_extract_iov(int dst_niov, struct kvec *dst,
- int src_niov, struct kvec *src,
+unsigned int lnet_kiov_nob(unsigned int niov, struct bio_vec *iov);
+int lnet_extract_kiov(int dst_niov, struct bio_vec *dst,
+ int src_niov, struct bio_vec *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 kvec *diov,
unsigned int doffset,
unsigned int nsiov, struct kvec *siov,
unsigned int soffset, unsigned int nob);
void lnet_copy_kiov2iov(unsigned int niov, struct kvec *iov,
unsigned int iovoffset,
- unsigned int nkiov, lnet_kiov_t *kiov,
+ unsigned int nkiov, struct bio_vec *kiov,
unsigned int kiovoffset, unsigned int nob);
-void lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov,
+void lnet_copy_iov2kiov(unsigned int nkiov, struct bio_vec *kiov,
unsigned int kiovoffset,
unsigned int niov, struct kvec *iov,
unsigned int iovoffset, unsigned int nob);
-void lnet_copy_kiov2kiov(unsigned int ndkiov, lnet_kiov_t *dkiov,
+void lnet_copy_kiov2kiov(unsigned int ndkiov, struct bio_vec *dkiov,
unsigned int doffset,
- unsigned int nskiov, lnet_kiov_t *skiov,
+ unsigned int nskiov, struct bio_vec *skiov,
unsigned int soffset, unsigned int nob);
static inline void
static inline void
lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset,
- unsigned int nsiov, lnet_kiov_t *skiov,
+ unsigned int nsiov, struct bio_vec *skiov,
unsigned int soffset, unsigned int nob)
{
struct kvec diov = { .iov_base = dest, .iov_len = dlen };
}
static inline void
-lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov,
+lnet_copy_flat2kiov(unsigned int ndiov, struct bio_vec *dkiov,
unsigned int doffset, int slen, void *src,
unsigned int soffset, unsigned int nob)
{
void lnet_me_unlink(struct lnet_me *me);
void lnet_md_unlink(struct lnet_libmd *md);
-void lnet_md_deconstruct(struct lnet_libmd *lmd, struct lnet_md *umd);
+void lnet_md_deconstruct(struct lnet_libmd *lmd, struct lnet_event *ev);
struct page *lnet_kvaddr_to_page(unsigned long vaddr);
int lnet_cpt_of_md(struct lnet_libmd *md, unsigned int offset);
-void lnet_register_lnd(struct lnet_lnd *lnd);
-void lnet_unregister_lnd(struct lnet_lnd *lnd);
+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);
-int lnet_connect(struct socket **sockp, lnet_nid_t peer_nid,
- __u32 local_ip, __u32 peer_ip, int peer_port);
+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);
int lnet_count_acceptor_nets(void);
int lnet_acceptor_start(void);
void lnet_acceptor_stop(void);
-int lnet_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask);
-int lnet_ipif_enumerate(char ***names);
-void lnet_ipif_free_enumeration(char **names, int n);
+struct lnet_inetdev {
+ u32 li_cpt;
+ u32 li_flags;
+ u32 li_ipaddr;
+ u32 li_netmask;
+ char li_name[IFNAMSIZ];
+};
+
+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);
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_sock_listen(struct socket **sockp, __u32 ip, int port, int backlog);
-int lnet_sock_accept(struct socket **newsockp, struct socket *sock);
-int lnet_sock_connect(struct socket **sockp, int *fatal,
- __u32 local_ip, int local_port,
- __u32 peer_ip, int peer_port);
+struct socket *lnet_sock_listen(int port, int backlog,
+ struct net *ns);
+struct socket *lnet_sock_connect(int interface, int local_port,
+ struct sockaddr *peeraddr,
+ struct net *ns);
int lnet_peers_start_down(void);
int lnet_peer_buffer_credits(struct lnet_net *net);
+void lnet_consolidate_routes_locked(struct lnet_peer *orig_lp,
+ struct lnet_peer *new_lp);
+void lnet_router_discovery_complete(struct lnet_peer *lp);
+void lnet_router_discovery_ping_reply(struct lnet_peer *lp);
+
+int lnet_monitor_thr_start(void);
+void lnet_monitor_thr_stop(void);
-int lnet_router_checker_start(void);
-void lnet_router_checker_stop(void);
-void lnet_router_ni_update_locked(struct lnet_peer_ni *gw, __u32 net);
+bool lnet_router_checker_active(void);
+void lnet_check_routers(void);
+void lnet_wait_router_start(void);
void lnet_swap_pinginfo(struct lnet_ping_buffer *pbuf);
int lnet_ping_info_validate(struct lnet_ping_info *pinfo);
static inline void lnet_ping_buffer_decref(struct lnet_ping_buffer *pbuf)
{
- if (atomic_dec_and_test(&pbuf->pb_refcnt))
+ if (atomic_dec_and_test(&pbuf->pb_refcnt)) {
+ wake_up_var(&pbuf->pb_refcnt);
lnet_ping_buffer_free(pbuf);
-}
-
-static inline int lnet_ping_buffer_numref(struct lnet_ping_buffer *pbuf)
-{
- return atomic_read(&pbuf->pb_refcnt);
+ }
}
static inline int lnet_push_target_resize_needed(void)
}
int lnet_push_target_resize(void);
+int lnet_push_target_post(struct lnet_ping_buffer *pbuf,
+ struct lnet_handle_md *mdh);
void lnet_peer_push_event(struct lnet_event *ev);
-int lnet_parse_ip2nets(char **networksp, char *ip2nets);
-int lnet_parse_routes(char *route_str, int *im_a_router);
-int lnet_parse_networks(struct list_head *nilist, char *networks,
+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);
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 *lnet_get_next_peer_ni_locked(struct lnet_peer *peer,
struct lnet_peer_net *peer_net,
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_peer_get_ni_locked(struct lnet_peer *lp,
+ lnet_nid_t nid);
struct lnet_peer_ni *lnet_find_peer_ni_locked(lnet_nid_t nid);
struct lnet_peer *lnet_find_peer(lnet_nid_t nid);
void lnet_peer_net_added(struct lnet_net *net);
__u32 *ni_peer_tx_credits, __u32 *peer_tx_credits,
__u32 *peer_rtr_credits, __u32 *peer_min_rtr_credtis,
__u32 *peer_tx_qnob);
-
-
-static inline bool
-lnet_is_peer_ni_healthy_locked(struct lnet_peer_ni *lpni)
-{
- return lpni->lpni_healthy;
-}
-
-static inline void
-lnet_set_peer_ni_health_locked(struct lnet_peer_ni *lpni, bool health)
-{
- lpni->lpni_healthy = health;
-}
-
-static inline bool
-lnet_is_peer_net_healthy_locked(struct lnet_peer_net *peer_net)
-{
- struct lnet_peer_ni *lpni;
-
- list_for_each_entry(lpni, &peer_net->lpn_peer_nis,
- lpni_peer_nis) {
- if (lnet_is_peer_ni_healthy_locked(lpni))
- return true;
- }
-
- return false;
-}
-
-static inline bool
-lnet_is_peer_healthy_locked(struct lnet_peer *peer)
-{
- struct lnet_peer_net *peer_net;
-
- list_for_each_entry(peer_net, &peer->lp_peer_nets, lpn_peer_nets) {
- if (lnet_is_peer_net_healthy_locked(peer_net))
- return true;
- }
-
- return false;
-}
+int lnet_get_peer_ni_hstats(struct lnet_ioctl_peer_ni_hstats *stats);
static inline struct lnet_peer_net *
lnet_find_peer_net_locked(struct lnet_peer *peer, __u32 net_id)
return NULL;
}
-static inline void
-lnet_peer_set_alive(struct lnet_peer_ni *lp)
-{
- lp->lpni_last_alive = ktime_get_seconds();
- lp->lpni_last_query = lp->lpni_last_alive;
- if (!lp->lpni_alive)
- lnet_notify_locked(lp, 0, 1, lp->lpni_last_alive);
-}
-
static inline bool
lnet_peer_is_multi_rail(struct lnet_peer *lp)
{
}
bool lnet_peer_is_uptodate(struct lnet_peer *lp);
+bool lnet_peer_is_uptodate_locked(struct lnet_peer *lp);
+bool lnet_is_discovery_disabled(struct lnet_peer *lp);
+bool lnet_is_discovery_disabled_locked(struct lnet_peer *lp);
+bool lnet_peer_gw_discovery(struct lnet_peer *lp);
static inline bool
lnet_peer_needs_push(struct lnet_peer *lp)
return true;
if (lp->lp_state & LNET_PEER_NO_DISCOVERY)
return false;
+ /* if discovery is not enabled then no need to push */
+ if (lnet_peer_discovery_disabled)
+ return false;
if (lp->lp_node_seqno < atomic_read(&the_lnet.ln_ping_target_seqno))
return true;
return false;
}
+/*
+ * A peer is alive if it satisfies the following two conditions:
+ * 1. peer health >= LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage
+ * 2. the cached NI status received when we discover the peer is UP
+ */
+static inline bool
+lnet_is_peer_ni_alive(struct lnet_peer_ni *lpni)
+{
+ bool halive = false;
+
+ halive = (atomic_read(&lpni->lpni_healthv) >=
+ (LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage / 100));
+
+ return halive && lpni->lpni_ns_status == LNET_NI_STATUS_UP;
+}
+
+static inline void
+lnet_update_peer_net_healthv(struct lnet_peer_ni *lpni)
+{
+ struct lnet_peer_net *lpn;
+ int best_healthv = 0;
+
+ lpn = lpni->lpni_peer_net;
+
+ list_for_each_entry(lpni, &lpn->lpn_peer_nis, lpni_peer_nis) {
+ int lpni_healthv = atomic_read(&lpni->lpni_healthv);
+ if (best_healthv < lpni_healthv)
+ best_healthv = lpni_healthv;
+ }
+
+ lpn->lpn_healthv = best_healthv;
+}
+
+static inline void
+lnet_set_lpni_healthv_locked(struct lnet_peer_ni *lpni, int value)
+{
+ if (atomic_read(&lpni->lpni_healthv) == value)
+ return;
+ atomic_set(&lpni->lpni_healthv, value);
+ lnet_update_peer_net_healthv(lpni);
+}
+
+static inline bool
+lnet_atomic_add_unless_max(atomic_t *v, int a, int u)
+{
+ int c = atomic_read(v);
+ bool mod = false;
+ int old;
+ int m;
+
+ if (c == u)
+ return mod;
+
+ for (;;) {
+ if (c + a >= u)
+ m = u;
+ else
+ m = c + a;
+ old = atomic_cmpxchg(v, c, m);
+
+ if (old == u)
+ break;
+
+ if (old == c) {
+ mod = true;
+ break;
+ }
+ c = old;
+ }
+
+ return mod;
+}
+
+static inline void
+lnet_inc_lpni_healthv_locked(struct lnet_peer_ni *lpni, int value)
+{
+ /* only adjust the net health if the lpni health value changed */
+ if (lnet_atomic_add_unless_max(&lpni->lpni_healthv, value,
+ LNET_MAX_HEALTH_VALUE))
+ lnet_update_peer_net_healthv(lpni);
+}
+
+static inline void
+lnet_inc_healthv(atomic_t *healthv, int value)
+{
+ lnet_atomic_add_unless_max(healthv, value, LNET_MAX_HEALTH_VALUE);
+}
+
void lnet_incr_stats(struct lnet_element_stats *stats,
enum lnet_msg_type msg_type,
enum lnet_stats_type stats_type);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff