*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* 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/
* object is saved here. This handle can be used later in LNetMEInsert(),
* LNetMEUnlink(), or LNetMDAttach() functions.
*
- * \retval 0 On success.
+ * \retval 0 On success.
* \retval -EINVAL If \a portal is invalid.
* \retval -ENOMEM If new ME object cannot be allocated.
*/
int
LNetMEAttach(unsigned int portal,
- lnet_process_id_t match_id,
- __u64 match_bits, __u64 ignore_bits,
- lnet_unlink_t unlink, lnet_ins_pos_t pos,
- lnet_handle_me_t *handle)
+ lnet_process_id_t match_id,
+ __u64 match_bits, __u64 ignore_bits,
+ lnet_unlink_t unlink, lnet_ins_pos_t pos,
+ lnet_handle_me_t *handle)
{
struct lnet_match_table *mtable;
- lnet_me_t *me;
- cfs_list_t *head;
+ struct lnet_me *me;
+ struct list_head *head;
- LASSERT (the_lnet.ln_init);
- LASSERT (the_lnet.ln_refcount > 0);
+ LASSERT(the_lnet.ln_refcount > 0);
- if ((int)portal >= the_lnet.ln_nportals)
- return -EINVAL;
+ if ((int)portal >= the_lnet.ln_nportals)
+ return -EINVAL;
mtable = lnet_mt_of_attach(portal, match_id,
match_bits, ignore_bits, pos);
if (mtable == NULL) /* can't match portal type */
return -EPERM;
- me = lnet_me_alloc();
- if (me == NULL)
- return -ENOMEM;
+ me = lnet_me_alloc();
+ if (me == NULL)
+ return -ENOMEM;
- lnet_res_lock();
+ lnet_res_lock(mtable->mt_cpt);
- me->me_portal = portal;
- me->me_match_id = match_id;
- me->me_match_bits = match_bits;
- me->me_ignore_bits = ignore_bits;
- me->me_unlink = unlink;
- me->me_md = NULL;
+ me->me_portal = portal;
+ me->me_match_id = match_id;
+ me->me_match_bits = match_bits;
+ me->me_ignore_bits = ignore_bits;
+ me->me_unlink = unlink;
+ me->me_md = NULL;
- lnet_res_lh_initialize(&the_lnet.ln_me_container, &me->me_lh);
- head = lnet_mt_match_head(mtable, match_id, match_bits);
- LASSERT (head != NULL);
+ lnet_res_lh_initialize(the_lnet.ln_me_containers[mtable->mt_cpt],
+ &me->me_lh);
+ if (ignore_bits != 0)
+ head = &mtable->mt_mhash[LNET_MT_HASH_IGNORE];
+ else
+ head = lnet_mt_match_head(mtable, match_id, match_bits);
- if (pos == LNET_INS_AFTER)
- cfs_list_add_tail(&me->me_list, head);
- else
- cfs_list_add(&me->me_list, head);
+ me->me_pos = head - &mtable->mt_mhash[0];
+ if (pos == LNET_INS_AFTER || pos == LNET_INS_LOCAL)
+ list_add_tail(&me->me_list, head);
+ else
+ list_add(&me->me_list, head);
- lnet_me2handle(handle, me);
+ lnet_me2handle(handle, me);
- lnet_res_unlock();
-
- return 0;
+ lnet_res_unlock(mtable->mt_cpt);
+ return 0;
}
+EXPORT_SYMBOL(LNetMEAttach);
/**
* Create and a match entry and insert it before or after the ME pointed to by
* \param match_id,match_bits,ignore_bits,unlink,pos,handle See the discussion
* for LNetMEAttach().
*
- * \retval 0 On success.
+ * \retval 0 On success.
* \retval -ENOMEM If new ME object cannot be allocated.
* \retval -ENOENT If \a current_meh does not point to a valid match entry.
*/
int
LNetMEInsert(lnet_handle_me_t current_meh,
- lnet_process_id_t match_id,
- __u64 match_bits, __u64 ignore_bits,
- lnet_unlink_t unlink, lnet_ins_pos_t pos,
- lnet_handle_me_t *handle)
+ lnet_process_id_t match_id,
+ __u64 match_bits, __u64 ignore_bits,
+ lnet_unlink_t unlink, lnet_ins_pos_t pos,
+ lnet_handle_me_t *handle)
{
- lnet_me_t *current_me;
- lnet_me_t *new_me;
- lnet_portal_t *ptl;
+ struct lnet_me *current_me;
+ struct lnet_me *new_me;
+ struct lnet_portal *ptl;
+ int cpt;
+
+ LASSERT(the_lnet.ln_refcount > 0);
+
+ if (pos == LNET_INS_LOCAL)
+ return -EPERM;
- LASSERT (the_lnet.ln_init);
- LASSERT (the_lnet.ln_refcount > 0);
+ new_me = lnet_me_alloc();
+ if (new_me == NULL)
+ return -ENOMEM;
- new_me = lnet_me_alloc();
- if (new_me == NULL)
- return -ENOMEM;
+ cpt = lnet_cpt_of_cookie(current_meh.cookie);
- lnet_res_lock();
+ lnet_res_lock(cpt);
current_me = lnet_handle2me(¤t_meh);
if (current_me == NULL) {
- lnet_me_free_locked(new_me);
+ lnet_me_free(new_me);
- lnet_res_unlock();
+ lnet_res_unlock(cpt);
return -ENOENT;
}
ptl = the_lnet.ln_portals[current_me->me_portal];
if (lnet_ptl_is_unique(ptl)) {
- /* nosense to insertion on unique portal */
- lnet_me_free_locked(new_me);
- lnet_res_unlock();
- return -EPERM;
- }
+ /* nosense to insertion on unique portal */
+ lnet_me_free(new_me);
+ lnet_res_unlock(cpt);
+ return -EPERM;
+ }
- new_me->me_portal = current_me->me_portal;
- new_me->me_match_id = match_id;
- new_me->me_match_bits = match_bits;
- new_me->me_ignore_bits = ignore_bits;
- new_me->me_unlink = unlink;
- new_me->me_md = NULL;
+ new_me->me_pos = current_me->me_pos;
+ new_me->me_portal = current_me->me_portal;
+ new_me->me_match_id = match_id;
+ new_me->me_match_bits = match_bits;
+ new_me->me_ignore_bits = ignore_bits;
+ new_me->me_unlink = unlink;
+ new_me->me_md = NULL;
- lnet_res_lh_initialize(&the_lnet.ln_me_container, &new_me->me_lh);
+ lnet_res_lh_initialize(the_lnet.ln_me_containers[cpt], &new_me->me_lh);
- if (pos == LNET_INS_AFTER)
- cfs_list_add(&new_me->me_list, ¤t_me->me_list);
- else
- cfs_list_add_tail(&new_me->me_list, ¤t_me->me_list);
+ if (pos == LNET_INS_AFTER)
+ list_add(&new_me->me_list, ¤t_me->me_list);
+ else
+ list_add_tail(&new_me->me_list, ¤t_me->me_list);
- lnet_me2handle(handle, new_me);
+ lnet_me2handle(handle, new_me);
- lnet_res_unlock();
+ lnet_res_unlock(cpt);
return 0;
}
+EXPORT_SYMBOL(LNetMEInsert);
/**
* Unlink a match entry from its match list.
*
* \param meh A handle for the ME to be unlinked.
*
- * \retval 0 On success.
+ * \retval 0 On success.
* \retval -ENOENT If \a meh does not point to a valid ME.
* \see LNetMDUnlink() for the discussion on delivering unlink event.
*/
int
LNetMEUnlink(lnet_handle_me_t meh)
{
- lnet_me_t *me;
- lnet_libmd_t *md;
- lnet_event_t ev;
+ lnet_me_t *me;
+ lnet_libmd_t *md;
+ lnet_event_t ev;
+ int cpt;
- LASSERT (the_lnet.ln_init);
- LASSERT (the_lnet.ln_refcount > 0);
+ LASSERT(the_lnet.ln_refcount > 0);
- lnet_res_lock();
+ cpt = lnet_cpt_of_cookie(meh.cookie);
+ lnet_res_lock(cpt);
- me = lnet_handle2me(&meh);
- if (me == NULL) {
- lnet_res_unlock();
- return -ENOENT;
- }
+ me = lnet_handle2me(&meh);
+ if (me == NULL) {
+ lnet_res_unlock(cpt);
+ return -ENOENT;
+ }
- md = me->me_md;
- if (md != NULL &&
- md->md_eq != NULL &&
- md->md_refcount == 0) {
- lnet_build_unlink_event(md, &ev);
- lnet_eq_enqueue_event(md->md_eq, &ev);
- }
+ md = me->me_md;
+ if (md != NULL) {
+ md->md_flags |= LNET_MD_FLAG_ABORTED;
+ if (md->md_eq != NULL && md->md_refcount == 0) {
+ lnet_build_unlink_event(md, &ev);
+ lnet_eq_enqueue_event(md->md_eq, &ev);
+ }
+ }
- lnet_me_unlink(me);
+ lnet_me_unlink(me);
- lnet_res_unlock();
- return 0;
+ lnet_res_unlock(cpt);
+ return 0;
}
+EXPORT_SYMBOL(LNetMEUnlink);
/* call with lnet_res_lock please */
void
lnet_me_unlink(lnet_me_t *me)
{
- cfs_list_del(&me->me_list);
+ list_del(&me->me_list);
if (me->me_md != NULL) {
lnet_libmd_t *md = me->me_md;
}
lnet_res_lh_invalidate(&me->me_lh);
- lnet_me_free_locked(me);
+ lnet_me_free(me);
}
#if 0
static void
lib_me_dump(lnet_me_t *me)
{
- CWARN("Match Entry %p ("LPX64")\n", me,
- me->me_lh.lh_cookie);
+ CWARN("Match Entry %p (%#llx)\n", me,
+ me->me_lh.lh_cookie);
- CWARN("\tMatch/Ignore\t= %016lx / %016lx\n",
- me->me_match_bits, me->me_ignore_bits);
+ CWARN("\tMatch/Ignore\t= %016lx / %016lx\n",
+ me->me_match_bits, me->me_ignore_bits);
- CWARN("\tMD\t= %p\n", me->md);
- CWARN("\tprev\t= %p\n",
- cfs_list_entry(me->me_list.prev, lnet_me_t, me_list));
- CWARN("\tnext\t= %p\n",
- cfs_list_entry(me->me_list.next, lnet_me_t, me_list));
+ CWARN("\tMD\t= %p\n", me->md);
+ CWARN("\tprev\t= %p\n",
+ list_entry(me->me_list.prev, lnet_me_t, me_list));
+ CWARN("\tnext\t= %p\n",
+ list_entry(me->me_list.next, lnet_me_t, me_list));
}
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff