extern lnet_t the_lnet; /* THE network */
+#if !defined(__KERNEL__) || defined(LNET_USE_LIB_FREELIST)
+/* 1 CPT, simplify implementation... */
+# define LNET_CPT_MAX_BITS 0
+
+#else /* KERNEL and no freelist */
+
+# if (BITS_PER_LONG == 32)
+/* 2 CPTs, allowing more CPTs might make us under memory pressure */
+# define LNET_CPT_MAX_BITS 1
+
+# else /* 64-bit system */
+/*
+ * 256 CPTs for thousands of CPUs, allowing more CPTs might make us
+ * under risk of consuming all lh_cookie.
+ */
+# define LNET_CPT_MAX_BITS 8
+# endif /* BITS_PER_LONG == 32 */
+#endif
+
+/* max allowed CPT number */
+#define LNET_CPT_MAX (1 << LNET_CPT_MAX_BITS)
+
+#define LNET_CPT_NUMBER (the_lnet.ln_cpt_number)
+#define LNET_CPT_BITS (the_lnet.ln_cpt_bits)
+#define LNET_CPT_MASK ((1ULL << LNET_CPT_BITS) - 1)
+
+/** exclusive lock */
+#define LNET_LOCK_EX CFS_PERCPT_LOCK_EX
+
static inline int lnet_is_wire_handle_none (lnet_handle_wire_t *wh)
{
return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
lnet_md_exhausted(md));
}
-static inline unsigned int
-lnet_match_to_hash(lnet_process_id_t id, __u64 mbits)
+#define lnet_cpt_table() (the_lnet.ln_cpt_table)
+#define lnet_cpt_current() cfs_cpt_current(the_lnet.ln_cpt_table, 1)
+
+static inline int
+lnet_cpt_of_cookie(__u64 cookie)
{
- mbits += id.nid + id.pid;
- return cfs_hash_long((unsigned long)mbits, LNET_PORTAL_HASH_BITS);
+ unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK;
+
+ /* LNET_CPT_NUMBER doesn't have to be power2, which means we can
+ * get illegal cpt from it's invalid cookie */
+ return cpt < LNET_CPT_NUMBER ? cpt : cpt % LNET_CPT_NUMBER;
}
+static inline void
+lnet_res_lock(int cpt)
+{
+ cfs_percpt_lock(the_lnet.ln_res_lock, cpt);
+}
+
+static inline void
+lnet_res_unlock(int cpt)
+{
+ cfs_percpt_unlock(the_lnet.ln_res_lock, cpt);
+}
+
+static inline int
+lnet_res_lock_current(void)
+{
+ int cpt = lnet_cpt_current();
+
+ lnet_res_lock(cpt);
+ return cpt;
+}
+
+static inline void
+lnet_net_lock(int cpt)
+{
+ cfs_percpt_lock(the_lnet.ln_net_lock, cpt);
+}
+
+static inline void
+lnet_net_unlock(int cpt)
+{
+ cfs_percpt_unlock(the_lnet.ln_net_lock, cpt);
+}
+
+static inline int
+lnet_net_lock_current(void)
+{
+ int cpt = lnet_cpt_current();
+
+ lnet_net_lock(cpt);
+ return cpt;
+}
+
+#define LNET_LOCK() lnet_net_lock(LNET_LOCK_EX)
+#define LNET_UNLOCK() lnet_net_unlock(LNET_LOCK_EX)
+
#ifdef __KERNEL__
-#define LNET_LOCK() cfs_spin_lock(&the_lnet.ln_lock)
-#define LNET_UNLOCK() cfs_spin_unlock(&the_lnet.ln_lock)
-#define LNET_MUTEX_LOCK(m) cfs_mutex_lock(m)
-#define LNET_MUTEX_UNLOCK(m) cfs_mutex_unlock(m)
-#else
+
+#define lnet_ptl_lock(ptl) cfs_spin_lock(&(ptl)->ptl_lock)
+#define lnet_ptl_unlock(ptl) cfs_spin_unlock(&(ptl)->ptl_lock)
+#define lnet_eq_wait_lock() cfs_spin_lock(&the_lnet.ln_eq_wait_lock)
+#define lnet_eq_wait_unlock() cfs_spin_unlock(&the_lnet.ln_eq_wait_lock)
+#define lnet_ni_lock(ni) cfs_spin_lock(&(ni)->ni_lock)
+#define lnet_ni_unlock(ni) cfs_spin_unlock(&(ni)->ni_lock)
+#define LNET_MUTEX_LOCK(m) cfs_mutex_lock(m)
+#define LNET_MUTEX_UNLOCK(m) cfs_mutex_unlock(m)
+
+#else /* !__KERNEL__ */
+
# ifndef HAVE_LIBPTHREAD
#define LNET_SINGLE_THREADED_LOCK(l) \
do { \
(l) = 0; \
} while (0)
-#define LNET_LOCK() LNET_SINGLE_THREADED_LOCK(the_lnet.ln_lock)
-#define LNET_UNLOCK() LNET_SINGLE_THREADED_UNLOCK(the_lnet.ln_lock)
-#define LNET_MUTEX_LOCK(m) LNET_SINGLE_THREADED_LOCK(*(m))
-#define LNET_MUTEX_UNLOCK(m) LNET_SINGLE_THREADED_UNLOCK(*(m))
-# else
-#define LNET_LOCK() pthread_mutex_lock(&the_lnet.ln_lock)
-#define LNET_UNLOCK() pthread_mutex_unlock(&the_lnet.ln_lock)
-#define LNET_MUTEX_LOCK(m) pthread_mutex_lock(m)
-#define LNET_MUTEX_UNLOCK(m) pthread_mutex_unlock(m)
-# endif
-#endif
+#define LNET_MUTEX_LOCK(m) LNET_SINGLE_THREADED_LOCK(*(m))
+#define LNET_MUTEX_UNLOCK(m) LNET_SINGLE_THREADED_UNLOCK(*(m))
+
+#define lnet_ptl_lock(ptl) \
+ LNET_SINGLE_THREADED_LOCK((ptl)->ptl_lock)
+#define lnet_ptl_unlock(ptl) \
+ LNET_SINGLE_THREADED_UNLOCK((ptl)->ptl_lock)
+
+#define lnet_eq_wait_lock() \
+ LNET_SINGLE_THREADED_LOCK(the_lnet.ln_eq_wait_lock)
+#define lnet_eq_wait_unlock() \
+ LNET_SINGLE_THREADED_UNLOCK(the_lnet.ln_eq_wait_lock)
+
+#define lnet_ni_lock(ni) \
+ LNET_SINGLE_THREADED_LOCK((ni)->ni_lock)
+#define lnet_ni_unlock(ni) \
+ LNET_SINGLE_THREADED_UNLOCK((ni)->ni_lock)
+
+# else /* HAVE_LIBPTHREAD */
+
+#define LNET_MUTEX_LOCK(m) pthread_mutex_lock(m)
+#define LNET_MUTEX_UNLOCK(m) pthread_mutex_unlock(m)
+
+#define lnet_ptl_lock(ptl) pthread_mutex_lock(&(ptl)->ptl_lock)
+#define lnet_ptl_unlock(ptl) pthread_mutex_unlock(&(ptl)->ptl_lock)
+
+#define lnet_eq_wait_lock() pthread_mutex_lock(&the_lnet.ln_eq_wait_lock)
+#define lnet_eq_wait_unlock() pthread_mutex_unlock(&the_lnet.ln_eq_wait_lock)
+
+#define lnet_ni_lock(ni) pthread_mutex_lock(&(ni)->ni_lock)
+#define lnet_ni_unlock(ni) pthread_mutex_unlock(&(ni)->ni_lock)
+
+# endif /* HAVE_LIBPTHREAD */
+#endif /* __KERNEL__ */
#define MAX_PORTALS 64
struct lnet_res_container *rec = &the_lnet.ln_eq_container;
lnet_eq_t *eq;
- LNET_LOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
+
+ lnet_res_lock(0);
eq = (lnet_eq_t *)lnet_freelist_alloc(&rec->rec_freelist);
- LNET_UNLOCK();
+ lnet_res_unlock(0);
return eq;
}
/* ALWAYS called with resource lock held */
struct lnet_res_container *rec = &the_lnet.ln_eq_container;
+ LASSERT(LNET_CPT_NUMBER == 1);
lnet_freelist_free(&rec->rec_freelist, eq);
}
static inline void
lnet_eq_free(lnet_eq_t *eq)
{
- LNET_LOCK();
+ lnet_res_lock(0);
lnet_eq_free_locked(eq);
- LNET_UNLOCK();
+ lnet_res_unlock(0);
}
static inline lnet_libmd_t *
lnet_md_alloc (lnet_md_t *umd)
{
/* NEVER called with resource lock held */
- struct lnet_res_container *rec = &the_lnet.ln_md_container;
+ struct lnet_res_container *rec = the_lnet.ln_md_containers[0];
lnet_libmd_t *md;
- LNET_LOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
+
+ lnet_res_lock(0);
md = (lnet_libmd_t *)lnet_freelist_alloc(&rec->rec_freelist);
- LNET_UNLOCK();
+ lnet_res_unlock(0);
if (md != NULL)
CFS_INIT_LIST_HEAD(&md->md_list);
lnet_md_free_locked(lnet_libmd_t *md)
{
/* ALWAYS called with resource lock held */
- struct lnet_res_container *rec = &the_lnet.ln_md_container;
+ struct lnet_res_container *rec = the_lnet.ln_md_containers[0];
+ LASSERT(LNET_CPT_NUMBER == 1);
lnet_freelist_free(&rec->rec_freelist, md);
}
static inline void
lnet_md_free(lnet_libmd_t *md)
{
- LNET_LOCK();
+ lnet_res_lock(0);
lnet_md_free_locked(md);
- LNET_UNLOCK();
+ lnet_res_unlock(0);
}
static inline lnet_me_t *
lnet_me_alloc(void)
{
/* NEVER called with resource lock held */
- struct lnet_res_container *rec = &the_lnet.ln_me_container;
+ struct lnet_res_container *rec = the_lnet.ln_me_containers[0];
lnet_me_t *me;
- LNET_LOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
+
+ lnet_res_lock(0);
me = (lnet_me_t *)lnet_freelist_alloc(&rec->rec_freelist);
- LNET_UNLOCK();
+ lnet_res_unlock(0);
return me;
}
lnet_me_free_locked(lnet_me_t *me)
{
/* ALWAYS called with resource lock held */
- struct lnet_res_container *rec = &the_lnet.ln_me_container;
+ struct lnet_res_container *rec = the_lnet.ln_me_containers[0];
+ LASSERT(LNET_CPT_NUMBER == 1);
lnet_freelist_free(&rec->rec_freelist, me);
}
static inline void
lnet_me_free(lnet_me_t *me)
{
- LNET_LOCK();
+ lnet_res_lock(0);
lnet_me_free_locked(me);
- LNET_UNLOCK();
+ lnet_res_unlock(0);
}
static inline lnet_msg_t *
lnet_msg_alloc (void)
{
/* NEVER called with network lock held */
- struct lnet_msg_container *msc = &the_lnet.ln_msg_container;
+ struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0];
lnet_msg_t *msg;
- LNET_LOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
+
+ lnet_net_lock(0);
msg = (lnet_msg_t *)lnet_freelist_alloc(&msc->msc_freelist);
- LNET_UNLOCK();
+ lnet_net_unlock(0);
if (msg != NULL) {
/* NULL pointers, clear flags etc */
lnet_msg_free_locked(lnet_msg_t *msg)
{
/* ALWAYS called with network lock held */
- struct lnet_msg_container *msc = &the_lnet.ln_msg_container;
+ struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0];
+ LASSERT(LNET_CPT_NUMBER == 1);
LASSERT(!msg->msg_onactivelist);
lnet_freelist_free(&msc->msc_freelist, msg);
}
static inline void
lnet_msg_free (lnet_msg_t *msg)
{
- LNET_LOCK();
+ lnet_net_lock(0);
lnet_msg_free_locked(msg);
- LNET_UNLOCK();
+ lnet_net_unlock(0);
}
#else /* !LNET_USE_LIB_FREELIST */
lnet_res_lh_invalidate(lnet_libhandle_t *lh)
{
/* ALWAYS called with resource lock held */
+ /* NB: cookie is still useful, don't reset it */
cfs_list_del(&lh->lh_hash_chain);
}
{
/* ALWAYS called with resource lock held */
lnet_libhandle_t *lh;
+ int cpt;
- lh = lnet_res_lh_lookup(&the_lnet.ln_md_container, handle->cookie);
+ cpt = lnet_cpt_of_cookie(handle->cookie);
+ lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
+ handle->cookie);
if (lh == NULL)
return NULL;
{
/* ALWAYS called with resource lock held */
lnet_libhandle_t *lh;
+ int cpt;
if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
return NULL;
- lh = lnet_res_lh_lookup(&the_lnet.ln_md_container,
+ cpt = lnet_cpt_of_cookie(wh->wh_object_cookie);
+ lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
wh->wh_object_cookie);
if (lh == NULL)
return NULL;
{
/* ALWAYS called with resource lock held */
lnet_libhandle_t *lh;
+ int cpt;
- lh = lnet_res_lh_lookup(&the_lnet.ln_me_container, handle->cookie);
+ 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;
}
static inline void
-lnet_ni_addref_locked(lnet_ni_t *ni)
+lnet_ni_addref_locked(lnet_ni_t *ni, int cpt)
{
- LASSERT (ni->ni_refcount > 0);
- ni->ni_refcount++;
+ LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
+ LASSERT(*ni->ni_refs[cpt] >= 0);
+
+ (*ni->ni_refs[cpt])++;
}
static inline void
lnet_ni_addref(lnet_ni_t *ni)
{
- LNET_LOCK();
- lnet_ni_addref_locked(ni);
- LNET_UNLOCK();
+ lnet_net_lock(0);
+ lnet_ni_addref_locked(ni, 0);
+ lnet_net_unlock(0);
}
static inline void
-lnet_ni_decref_locked(lnet_ni_t *ni)
+lnet_ni_decref_locked(lnet_ni_t *ni, int cpt)
{
- 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);
+ LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
+ LASSERT(*ni->ni_refs[cpt] > 0);
+
+ (*ni->ni_refs[cpt])--;
}
static inline void
lnet_ni_decref(lnet_ni_t *ni)
{
- LNET_LOCK();
- lnet_ni_decref_locked(ni);
- LNET_UNLOCK();
+ lnet_net_lock(0);
+ lnet_ni_decref_locked(ni, 0);
+ lnet_net_unlock(0);
}
+void lnet_ni_free(lnet_ni_t *ni);
+
static inline int
lnet_nid2peerhash(lnet_nid_t nid)
{
}
#endif
-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;
-}
+extern int lnet_cpt_of_nid_locked(lnet_nid_t nid);
+extern int lnet_cpt_of_nid(lnet_nid_t nid);
+extern lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
+extern lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt);
+extern lnet_ni_t *lnet_net2ni(__u32 net);
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);
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);
+int lnet_rtrpools_alloc(int im_a_router);
+void lnet_rtrpools_free(void);
lnet_remotenet_t *lnet_find_net_locked (__u32 net);
int lnet_islocalnid(lnet_nid_t nid);
int lnet_islocalnet(__u32 net);
-void lnet_commit_md(lnet_libmd_t *md, lnet_msg_t *msg);
+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 cpt);
+void lnet_msg_decommit(lnet_msg_t *msg, int cpt, 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_credits_locked (lnet_msg_t *msg);
+int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid);
+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)
{
ptl->ptl_options &= ~opt;
}
-static inline cfs_list_t *
-lnet_ptl_me_head(int index, lnet_process_id_t id, __u64 mbits)
-{
- lnet_portal_t *ptl = the_lnet.ln_portals[index];
-
- if (lnet_ptl_is_wildcard(ptl)) {
- return &ptl->ptl_mlist;
- } else if (lnet_ptl_is_unique(ptl)) {
- LASSERT(ptl->ptl_mhash != NULL);
- return &ptl->ptl_mhash[lnet_match_to_hash(id, mbits)];
- }
- return NULL;
-}
-
+/* 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);
-int lnet_ptl_type_match(struct lnet_portal *ptl, lnet_process_id_t id,
- __u64 mbits, __u64 ignore_bits);
-void lnet_match_blocked_msg(lnet_libmd_t *md);
-int lnet_match_md(int index, int op_mask, lnet_process_id_t src,
- unsigned int rlength, unsigned int roffset,
- __u64 match_bits, lnet_msg_t *msg,
- unsigned int *mlength_out, unsigned int *offset_out,
- lnet_libmd_t **md_out);
-
/* message functions */
int lnet_parse (lnet_ni_t *ni, lnet_hdr_t *hdr,
lnet_nid_t fromnid, void *private, int rdma_req);
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);
+int lnet_msg_container_setup(struct lnet_msg_container *container, int cpt);
void lnet_msg_container_cleanup(struct lnet_msg_container *container);
+void lnet_msg_containers_destroy(void);
+int lnet_msg_containers_create(void);
char *lnet_msgtyp2str (int type);
void lnet_print_hdr (lnet_hdr_t * hdr);
int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
+void lnet_counters_get(lnet_counters_t *counters);
+void lnet_counters_reset(void);
+
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,
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);
+int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt);
+lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable,
+ lnet_nid_t nid);
+void lnet_peer_tables_cleanup(void);
+void lnet_peer_tables_destroy(void);
+int lnet_peer_tables_create(void);
void lnet_debug_peer(lnet_nid_t nid);
#ifndef __KERNEL__
git://git.whamcloud.com / fs / lustre-release.git / blobdiff