-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef __LNET_LIB_LNET_H__
#define __LNET_LIB_LNET_H__
-#if defined(__linux__)
#include <lnet/linux/lib-lnet.h>
-#elif defined(__APPLE__)
-#include <lnet/darwin/lib-lnet.h>
-#elif defined(__WINNT__)
-#include <lnet/winnt/lib-lnet.h>
-#else
-#error Unsupported Operating System
-#endif
#include <libcfs/libcfs.h>
#include <lnet/types.h>
#include <lnet/lnet.h>
#include <lnet/lib-types.h>
+#include <lnet/lib-dlc.h>
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_route_alive(lnet_route_t *route)
+{
+ if (!route->lr_gateway->lp_alive)
+ return 0; /* gateway is down */
+ if ((route->lr_gateway->lp_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;
+}
+
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));
}
+#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)
+{
+ 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() spin_lock(&the_lnet.ln_lock)
-#define LNET_UNLOCK() spin_unlock(&the_lnet.ln_lock)
-#define LNET_MUTEX_DOWN(m) mutex_down(m)
-#define LNET_MUTEX_UP(m) mutex_up(m)
-#else
+
+#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 LNET_MUTEX_LOCK(m) mutex_lock(m)
+#define LNET_MUTEX_UNLOCK(m) 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_DOWN(m) LNET_SINGLE_THREADED_LOCK(*(m))
-#define LNET_MUTEX_UP(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_DOWN(m) pthread_mutex_lock(m)
-#define LNET_MUTEX_UP(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
+/* these are only used by code with LNET_USE_LIB_FREELIST, but we still
+ * exported them to !LNET_USE_LIB_FREELIST for easy implemetation */
+#define LNET_FL_MAX_MES 2048
+#define LNET_FL_MAX_MDS 2048
+#define LNET_FL_MAX_EQS 512
+#define LNET_FL_MAX_MSGS 2048 /* Outstanding messages */
+
#ifdef LNET_USE_LIB_FREELIST
-#define MAX_MES 2048
-#define MAX_MDS 2048
-#define MAX_MSGS 2048 /* Outstanding messages */
-#define MAX_EQS 512
+int lnet_freelist_init(lnet_freelist_t *fl, int n, int size);
+void lnet_freelist_fini(lnet_freelist_t *fl);
static inline void *
lnet_freelist_alloc (lnet_freelist_t *fl)
{
- /* ALWAYS called with liblock held */
- lnet_freeobj_t *o;
+ /* ALWAYS called with liblock held */
+ lnet_freeobj_t *o;
- if (list_empty (&fl->fl_list))
- return (NULL);
+ if (list_empty(&fl->fl_list))
+ return NULL;
- o = list_entry (fl->fl_list.next, lnet_freeobj_t, fo_list);
- list_del (&o->fo_list);
- return ((void *)&o->fo_contents);
+ o = list_entry(fl->fl_list.next, lnet_freeobj_t, fo_list);
+ list_del(&o->fo_list);
+ return (void *)&o->fo_contents;
}
static inline void
lnet_freelist_free (lnet_freelist_t *fl, void *obj)
{
- /* ALWAYS called with liblock held */
- lnet_freeobj_t *o = list_entry (obj, lnet_freeobj_t, fo_contents);
+ /* ALWAYS called with liblock held */
+ lnet_freeobj_t *o = list_entry(obj, lnet_freeobj_t, fo_contents);
- list_add (&o->fo_list, &fl->fl_list);
+ list_add(&o->fo_list, &fl->fl_list);
}
static inline lnet_eq_t *
lnet_eq_alloc (void)
{
- /* NEVER called with liblock held */
- lnet_eq_t *eq;
+ /* NEVER called with resource lock held */
+ struct lnet_res_container *rec = &the_lnet.ln_eq_container;
+ lnet_eq_t *eq;
- LNET_LOCK();
- eq = (lnet_eq_t *)lnet_freelist_alloc(&the_lnet.ln_free_eqs);
- LNET_UNLOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
- return (eq);
+ lnet_res_lock(0);
+ eq = (lnet_eq_t *)lnet_freelist_alloc(&rec->rec_freelist);
+ lnet_res_unlock(0);
+
+ return eq;
}
static inline void
-lnet_eq_free (lnet_eq_t *eq)
+lnet_eq_free_locked(lnet_eq_t *eq)
{
- /* ALWAYS called with liblock held */
- lnet_freelist_free(&the_lnet.ln_free_eqs, 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_res_lock(0);
+ lnet_eq_free_locked(eq);
+ lnet_res_unlock(0);
}
static inline lnet_libmd_t *
lnet_md_alloc (lnet_md_t *umd)
{
- /* NEVER called with liblock held */
- lnet_libmd_t *md;
+ /* NEVER called with resource lock held */
+ struct lnet_res_container *rec = the_lnet.ln_md_containers[0];
+ lnet_libmd_t *md;
+
+ LASSERT(LNET_CPT_NUMBER == 1);
- LNET_LOCK();
- md = (lnet_libmd_t *)lnet_freelist_alloc(&the_lnet.ln_free_mds);
- LNET_UNLOCK();
+ lnet_res_lock(0);
+ md = (lnet_libmd_t *)lnet_freelist_alloc(&rec->rec_freelist);
+ lnet_res_unlock(0);
- if (md != NULL)
- CFS_INIT_LIST_HEAD(&md->md_list);
+ if (md != NULL)
+ INIT_LIST_HEAD(&md->md_list);
- return (md);
+ return md;
}
static inline void
-lnet_md_free (lnet_libmd_t *md)
+lnet_md_free_locked(lnet_libmd_t *md)
{
- /* ALWAYS called with liblock held */
- lnet_freelist_free (&the_lnet.ln_free_mds, md);
+ /* ALWAYS called with resource lock held */
+ 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_res_lock(0);
+ lnet_md_free_locked(md);
+ lnet_res_unlock(0);
}
static inline lnet_me_t *
-lnet_me_alloc (void)
+lnet_me_alloc(void)
{
- /* NEVER called with liblock held */
- lnet_me_t *me;
+ /* NEVER called with resource lock held */
+ struct lnet_res_container *rec = the_lnet.ln_me_containers[0];
+ lnet_me_t *me;
- LNET_LOCK();
- me = (lnet_me_t *)lnet_freelist_alloc(&the_lnet.ln_free_mes);
- LNET_UNLOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
- return (me);
+ lnet_res_lock(0);
+ me = (lnet_me_t *)lnet_freelist_alloc(&rec->rec_freelist);
+ lnet_res_unlock(0);
+
+ return me;
+}
+
+static inline void
+lnet_me_free_locked(lnet_me_t *me)
+{
+ /* ALWAYS called with resource lock held */
+ 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_me_free(lnet_me_t *me)
{
- /* ALWAYS called with liblock held */
- lnet_freelist_free (&the_lnet.ln_free_mes, me);
+ lnet_res_lock(0);
+ lnet_me_free_locked(me);
+ lnet_res_unlock(0);
}
static inline lnet_msg_t *
lnet_msg_alloc (void)
{
- /* NEVER called with liblock held */
- lnet_msg_t *msg;
+ /* NEVER called with network lock held */
+ struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0];
+ lnet_msg_t *msg;
- LNET_LOCK();
- msg = (lnet_msg_t *)lnet_freelist_alloc(&the_lnet.ln_free_msgs);
- LNET_UNLOCK();
+ LASSERT(LNET_CPT_NUMBER == 1);
- if (msg != NULL) {
- /* NULL pointers, clear flags etc */
- memset (msg, 0, sizeof (*msg));
-#ifdef CRAY_XT3
- msg->msg_ev.uid = LNET_UID_ANY;
-#endif
- }
- return(msg);
+ lnet_net_lock(0);
+ msg = (lnet_msg_t *)lnet_freelist_alloc(&msc->msc_freelist);
+ lnet_net_unlock(0);
+
+ if (msg != NULL) {
+ /* NULL pointers, clear flags etc */
+ memset(msg, 0, sizeof(*msg));
+ }
+ return msg;
+}
+
+static inline void
+lnet_msg_free_locked(lnet_msg_t *msg)
+{
+ /* ALWAYS called with network lock held */
+ 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)
{
- /* ALWAYS called with liblock held */
- LASSERT (!msg->msg_onactivelist);
- lnet_freelist_free(&the_lnet.ln_free_msgs, msg);
+ lnet_net_lock(0);
+ lnet_msg_free_locked(msg);
+ lnet_net_unlock(0);
}
-#else
+#else /* !LNET_USE_LIB_FREELIST */
static inline lnet_eq_t *
lnet_eq_alloc (void)
}
static inline void
-lnet_eq_free (lnet_eq_t *eq)
+lnet_eq_free(lnet_eq_t *eq)
{
- /* ALWAYS called with liblock held */
- LIBCFS_FREE(eq, sizeof(*eq));
+ /* ALWAYS called with resource lock held */
+ LIBCFS_FREE(eq, sizeof(*eq));
}
static inline lnet_libmd_t *
LIBCFS_ALLOC(md, size);
- if (md != NULL) {
- /* Set here in case of early free */
- md->md_options = umd->options;
- md->md_niov = niov;
- CFS_INIT_LIST_HEAD(&md->md_list);
- }
+ 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);
+ return md;
}
static inline void
-lnet_md_free (lnet_libmd_t *md)
+lnet_md_free(lnet_libmd_t *md)
{
- /* ALWAYS called with liblock held */
- unsigned int size;
+ /* ALWAYS called with resource lock held */
+ unsigned int size;
- if ((md->md_options & LNET_MD_KIOV) != 0)
- size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]);
- else
- size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]);
+ if ((md->md_options & LNET_MD_KIOV) != 0)
+ size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]);
+ else
+ size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]);
- LIBCFS_FREE(md, size);
+ LIBCFS_FREE(md, size);
}
static inline lnet_me_t *
static inline void
lnet_me_free(lnet_me_t *me)
{
- /* ALWAYS called with liblock held */
- LIBCFS_FREE(me, sizeof(*me));
+ /* ALWAYS called with resource lock held */
+ LIBCFS_FREE(me, sizeof(*me));
}
static inline lnet_msg_t *
LIBCFS_ALLOC(msg, sizeof(*msg));
- if (msg != NULL) {
- /* NULL pointers, clear flags etc */
- memset (msg, 0, sizeof (*msg));
-#ifdef CRAY_XT3
- msg->msg_ev.uid = LNET_UID_ANY;
-#endif
- }
+ /* no need to zero, LIBCFS_ALLOC does for us */
return (msg);
}
static inline void
lnet_msg_free(lnet_msg_t *msg)
{
- /* ALWAYS called with liblock held */
- LASSERT (!msg->msg_onactivelist);
- LIBCFS_FREE(msg, sizeof(*msg));
+ /* ALWAYS called with network lock held */
+ LASSERT(!msg->msg_onactivelist);
+ LIBCFS_FREE(msg, sizeof(*msg));
}
-#endif
-extern lnet_libhandle_t *lnet_lookup_cookie (__u64 cookie, int type);
-extern void lnet_initialise_handle (lnet_libhandle_t *lh, int type);
-extern void lnet_invalidate_handle (lnet_libhandle_t *lh);
+#define lnet_eq_free_locked(eq) lnet_eq_free(eq)
+#define lnet_md_free_locked(md) lnet_md_free(md)
+#define lnet_me_free_locked(me) lnet_me_free(me)
+#define lnet_msg_free_locked(msg) lnet_msg_free(msg)
+
+#endif /* LNET_USE_LIB_FREELIST */
+
+lnet_libhandle_t *lnet_res_lh_lookup(struct lnet_res_container *rec,
+ __u64 cookie);
+void lnet_res_lh_initialize(struct lnet_res_container *rec,
+ lnet_libhandle_t *lh);
+static inline void
+lnet_res_lh_invalidate(lnet_libhandle_t *lh)
+{
+ /* ALWAYS called with resource lock held */
+ /* NB: cookie is still useful, don't reset it */
+ list_del(&lh->lh_hash_chain);
+}
static inline void
lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq)
}
static inline lnet_eq_t *
-lnet_handle2eq (lnet_handle_eq_t *handle)
+lnet_handle2eq(lnet_handle_eq_t *handle)
{
- /* ALWAYS called with liblock held */
- lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie,
- LNET_COOKIE_TYPE_EQ);
- if (lh == NULL)
- return (NULL);
+ /* ALWAYS called with resource lock held */
+ lnet_libhandle_t *lh;
- return (lh_entry (lh, lnet_eq_t, eq_lh));
+ lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie);
+ if (lh == NULL)
+ return NULL;
+
+ return lh_entry(lh, lnet_eq_t, eq_lh);
}
static inline void
}
static inline lnet_libmd_t *
-lnet_handle2md (lnet_handle_md_t *handle)
+lnet_handle2md(lnet_handle_md_t *handle)
{
- /* ALWAYS called with liblock held */
- lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie,
- LNET_COOKIE_TYPE_MD);
- if (lh == NULL)
- return (NULL);
+ /* ALWAYS called with resource lock held */
+ lnet_libhandle_t *lh;
+ int cpt;
+
+ 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;
- return (lh_entry (lh, lnet_libmd_t, md_lh));
+ return lh_entry(lh, lnet_libmd_t, md_lh);
}
static inline lnet_libmd_t *
-lnet_wire_handle2md (lnet_handle_wire_t *wh)
+lnet_wire_handle2md(lnet_handle_wire_t *wh)
{
- /* ALWAYS called with liblock held */
- lnet_libhandle_t *lh;
+ /* ALWAYS called with resource lock held */
+ lnet_libhandle_t *lh;
+ int cpt;
- if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
- return (NULL);
+ if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
+ return NULL;
- lh = lnet_lookup_cookie(wh->wh_object_cookie,
- LNET_COOKIE_TYPE_MD);
- if (lh == NULL)
- return (NULL);
+ 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;
- return (lh_entry (lh, lnet_libmd_t, md_lh));
+ return lh_entry(lh, lnet_libmd_t, md_lh);
}
static inline void
}
static inline lnet_me_t *
-lnet_handle2me (lnet_handle_me_t *handle)
+lnet_handle2me(lnet_handle_me_t *handle)
{
- /* ALWAYS called with liblock held */
- lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie,
- LNET_COOKIE_TYPE_ME);
- if (lh == NULL)
- return (NULL);
+ /* ALWAYS called with resource lock held */
+ lnet_libhandle_t *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, lnet_me_t, me_lh));
+ return lh_entry(lh, lnet_me_t, me_lh);
}
static inline void
}
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)
- 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);
}
-static inline struct list_head *
-lnet_nid2peerhash (lnet_nid_t nid)
+void lnet_ni_free(lnet_ni_t *ni);
+
+static inline int
+lnet_nid2peerhash(lnet_nid_t nid)
{
- unsigned int idx = LNET_NIDADDR(nid) % LNET_PEER_HASHSIZE;
+ return hash_long(nid, LNET_PEER_HASH_BITS);
+}
- return &the_lnet.ln_peer_hash[idx];
+static inline struct list_head *
+lnet_net2rnethash(__u32 net)
+{
+ return &the_lnet.ln_remote_nets_hash[(LNET_NETNUM(net) +
+ LNET_NETTYP(net)) &
+ ((1U << the_lnet.ln_remote_nets_hbits) - 1)];
}
extern lnd_t the_lolnd;
+extern int avoid_asym_router_failure;
#ifndef __KERNEL__
/* unconditional registration */
} 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 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, time_t when);
-void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, time_t when);
-int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid);
+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,
+ unsigned int priority);
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);
+ lnet_nid_t *gateway, __u32 *alive, __u32 *priority);
+int lnet_get_net_config(int idx,
+ __u32 *cpt_count,
+ __u64 *nid,
+ int *peer_timeout,
+ int *peer_tx_credits,
+ int *peer_rtr_cr,
+ int *max_tx_credits,
+ struct lnet_ioctl_net_config *net_config);
+int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg);
+
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_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages);
+int lnet_rtrpools_adjust(int tiny, int small, int large);
+int lnet_rtrpools_enable(void);
+void lnet_rtrpools_disable(void);
+void lnet_rtrpools_free(int keep_pools);
lnet_remotenet_t *lnet_find_net_locked (__u32 net);
+int lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets,
+ __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr,
+ __s32 credits);
+int lnet_dyn_del_ni(__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_enq_event_locked(lnet_eq_t *eq, 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);
-void lnet_match_blocked_msg(lnet_libmd_t *md);
+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);
+void lnet_schedule_blocked_locked(lnet_rtrbufpool_t *rbp);
+void lnet_drop_routed_msgs_locked(struct list_head *list, int cpt);
+
+/* 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 */
+struct list_head *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);
+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,
+ struct list_head *matches, struct list_head *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);
+int lnet_parse_local(lnet_ni_t *ni, lnet_msg_t *msg);
+int lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg);
+
void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
unsigned int offset, unsigned int mlen, unsigned int rlen);
+void lnet_ni_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_message(lnet_ni_t *ni, int cpt, void *private,
+ unsigned int nob);
+void lnet_drop_delayed_msg_list(struct list_head *head, char *reason);
+void lnet_recv_delayed_msg_list(struct list_head *head);
+
+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);
+/** \addtogroup lnet_fault_simulation @{ */
+
+int lnet_fault_ctl(int cmd, struct libcfs_ioctl_data *data);
+int lnet_fault_init(void);
+void lnet_fault_fini(void);
+
+bool lnet_drop_rule_match(lnet_hdr_t *hdr);
+
+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);
+int lnet_delay_rule_list(int pos, struct lnet_fault_attr *attr,
+ struct lnet_fault_stat *stat);
+void lnet_delay_rule_reset(void);
+void lnet_delay_rule_check(void);
+bool lnet_delay_rule_match_locked(lnet_hdr_t *hdr, struct lnet_msg *msg);
+
+/** @} lnet_fault_simulation */
+
+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,
unsigned int soffset, unsigned int nob);
static inline void
-lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset,
+lnet_copy_iov2flat(int dlen, __user void *dest, unsigned int doffset,
unsigned int nsiov, struct iovec *siov, unsigned int soffset,
unsigned int 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)
+lnet_copy_kiov2flat(int dlen, void __user *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};
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)
+ int slen, void __user *src, unsigned int soffset,
+ unsigned int nob)
{
struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen};
lnet_copy_iov2iov(ndiov, diov, doffset,
}
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)
+lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov,
+ unsigned int doffset, int slen, void __user *src,
+ unsigned int soffset, unsigned int nob)
{
struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen};
lnet_copy_iov2kiov(ndiov, dkiov, doffset,
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_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);
-
-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 (struct list_head *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_clear_peer_table(void);
-void lnet_destroy_peer_table(void);
-int lnet_create_peer_table(void);
+void lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net);
+void lnet_swap_pinginfo(lnet_ping_info_t *info);
+
+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_net_unique(__u32 net, struct list_head *nilist);
+
+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(lnet_ni_t *ni);
+void lnet_peer_tables_destroy(void);
+int lnet_peer_tables_create(void);
void lnet_debug_peer(lnet_nid_t nid);
+int lnet_get_peer_info(__u32 peer_index, __u64 *nid,
+ char alivness[LNET_MAX_STR_LEN],
+ __u32 *cpt_iter, __u32 *refcount,
+ __u32 *ni_peer_tx_credits, __u32 *peer_tx_credits,
+ __u32 *peer_rtr_credits, __u32 *peer_min_rtr_credtis,
+ __u32 *peer_tx_qnob);
+
+static inline void
+lnet_peer_set_alive(lnet_peer_t *lp)
+{
+ lp->lp_last_alive = lp->lp_last_query = cfs_time_current();
+ if (!lp->lp_alive)
+ lnet_notify_locked(lp, 0, 1, lp->lp_last_alive);
+}
#ifndef __KERNEL__
static inline int
git://git.whamcloud.com / fs / lustre-release.git / blobdiff