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LU-10185 gnilnd: SLES 12 SP2 support and cleanup
[fs/lustre-release.git] / lnet / klnds / gnilnd / gnilnd.c
index be104c3..4976a07 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2012 Cray, Inc.
  *
- * Copyright (c) 2013, 2014, Intel Corporation.
+ * Copyright (c) 2013, 2015, Intel Corporation.
  *
  *   Author: Nic Henke <nic@cray.com>
  *   Author: James Shimek <jshimek@cray.com>
 
 /* Primary entry points from LNET.  There are no guarantees against reentrance. */
 lnd_t the_kgnilnd = {
-#ifdef CONFIG_CRAY_XT
        .lnd_type       = GNILND,
-#else
-       .lnd_type       = GNIIPLND,
-#endif
        .lnd_startup    = kgnilnd_startup,
        .lnd_shutdown   = kgnilnd_shutdown,
        .lnd_ctl        = kgnilnd_ctl,
@@ -117,8 +113,8 @@ kgnilnd_close_stale_conns_locked(kgn_peer_t *peer, kgn_conn_t *newconn)
                    newconn->gnc_peer_connstamp == conn->gnc_my_connstamp) {
                        CDEBUG(D_NET, "skipping prune of %p, "
                                "loopback and matching stamps"
-                               " connstamp "LPU64"("LPU64")"
-                               " peerstamp "LPU64"("LPU64")\n",
+                               " connstamp %llu(%llu)"
+                               " peerstamp %llu(%llu)\n",
                                conn, newconn->gnc_my_connstamp,
                                conn->gnc_peer_connstamp,
                                newconn->gnc_peer_connstamp,
@@ -128,25 +124,25 @@ kgnilnd_close_stale_conns_locked(kgn_peer_t *peer, kgn_conn_t *newconn)
 
                if (conn->gnc_peerstamp != newconn->gnc_peerstamp) {
                        LASSERTF(conn->gnc_peerstamp < newconn->gnc_peerstamp,
-                               "conn 0x%p peerstamp "LPU64" >= "
-                               "newconn 0x%p peerstamp "LPU64"\n",
+                               "conn 0x%p peerstamp %llu >= "
+                               "newconn 0x%p peerstamp %llu\n",
                                conn, conn->gnc_peerstamp,
                                newconn, newconn->gnc_peerstamp);
 
                        CDEBUG(D_NET, "Closing stale conn nid: %s "
-                              " peerstamp:"LPX64"("LPX64")\n",
+                              " peerstamp:%#llx(%#llx)\n",
                               libcfs_nid2str(peer->gnp_nid),
                               conn->gnc_peerstamp, newconn->gnc_peerstamp);
                } else {
 
                        LASSERTF(conn->gnc_peer_connstamp < newconn->gnc_peer_connstamp,
-                               "conn 0x%p peer_connstamp "LPU64" >= "
-                               "newconn 0x%p peer_connstamp "LPU64"\n",
+                               "conn 0x%p peer_connstamp %llu >= "
+                               "newconn 0x%p peer_connstamp %llu\n",
                                conn, conn->gnc_peer_connstamp,
                                newconn, newconn->gnc_peer_connstamp);
 
                        CDEBUG(D_NET, "Closing stale conn nid: %s"
-                              " connstamp:"LPU64"("LPU64")\n",
+                              " connstamp:%llu(%llu)\n",
                               libcfs_nid2str(peer->gnp_nid),
                               conn->gnc_peer_connstamp, newconn->gnc_peer_connstamp);
                }
@@ -175,8 +171,8 @@ kgnilnd_conn_isdup_locked(kgn_peer_t *peer, kgn_conn_t *newconn)
        list_for_each(tmp, &peer->gnp_conns) {
                conn = list_entry(tmp, kgn_conn_t, gnc_list);
                CDEBUG(D_NET, "checking conn 0x%p for peer %s"
-                       " lo %d new "LPU64" existing "LPU64
-                       " new peer "LPU64" existing peer "LPU64
+                       " lo %d new %llu existing %llu"
+                       " new peer %llu existing peer %llu"
                        " new dev %p existing dev %p\n",
                        conn, libcfs_nid2str(peer->gnp_nid),
                        loopback,
@@ -266,6 +262,7 @@ kgnilnd_create_conn(kgn_conn_t **connp, kgn_device_t *dev)
        INIT_LIST_HEAD(&conn->gnc_schedlist);
        INIT_LIST_HEAD(&conn->gnc_fmaq);
        INIT_LIST_HEAD(&conn->gnc_mdd_list);
+       INIT_LIST_HEAD(&conn->gnc_delaylist);
        spin_lock_init(&conn->gnc_list_lock);
        spin_lock_init(&conn->gnc_tx_lock);
        conn->gnc_magic = GNILND_CONN_MAGIC;
@@ -319,7 +316,8 @@ kgnilnd_create_conn(kgn_conn_t **connp, kgn_device_t *dev)
 
 failed:
        atomic_dec(&kgnilnd_data.kgn_nconns);
-       LIBCFS_FREE(conn->gnc_tx_ref_table, GNILND_MAX_MSG_ID * sizeof(void *));
+       kgnilnd_vfree(conn->gnc_tx_ref_table,
+                     GNILND_MAX_MSG_ID * sizeof(void *));
        LIBCFS_FREE(conn, sizeof(*conn));
        return rc;
 }
@@ -450,8 +448,9 @@ kgnilnd_destroy_conn(kgn_conn_t *conn)
                list_empty(&conn->gnc_hashlist) &&
                list_empty(&conn->gnc_schedlist) &&
                list_empty(&conn->gnc_mdd_list) &&
+               list_empty(&conn->gnc_delaylist) &&
                conn->gnc_magic == GNILND_CONN_MAGIC,
-               "conn 0x%p->%s IRQ %d sched %d purg %d ep 0x%p Mg %d lists %d/%d/%d/%d\n",
+               "conn 0x%p->%s IRQ %d sched %d purg %d ep 0x%p Mg %d lists %d/%d/%d/%d/%d\n",
                conn, conn->gnc_peer ? libcfs_nid2str(conn->gnc_peer->gnp_nid)
                                     : "<?>",
                !!in_interrupt(), conn->gnc_scheduled,
@@ -461,7 +460,8 @@ kgnilnd_destroy_conn(kgn_conn_t *conn)
                list_empty(&conn->gnc_list),
                list_empty(&conn->gnc_hashlist),
                list_empty(&conn->gnc_schedlist),
-               list_empty(&conn->gnc_mdd_list));
+               list_empty(&conn->gnc_mdd_list),
+               list_empty(&conn->gnc_delaylist));
 
        /* Tripping these is especially bad, as it means we have items on the
         *  lists that didn't keep their refcount on the connection - or
@@ -493,8 +493,8 @@ kgnilnd_destroy_conn(kgn_conn_t *conn)
                kgnilnd_peer_decref(conn->gnc_peer);
 
        if (conn->gnc_tx_ref_table != NULL) {
-               LIBCFS_FREE(conn->gnc_tx_ref_table,
-                           GNILND_MAX_MSG_ID * sizeof(void *));
+               kgnilnd_vfree(conn->gnc_tx_ref_table,
+                             GNILND_MAX_MSG_ID * sizeof(void *));
        }
 
        LIBCFS_FREE(conn, sizeof(*conn));
@@ -635,7 +635,7 @@ kgnilnd_close_conn_locked(kgn_conn_t *conn, int error)
 
        /* if we NETERROR, make sure it is rate limited */
        if (!kgnilnd_conn_clean_errno(error) &&
-           peer->gnp_down == GNILND_RCA_NODE_UP) {
+           peer->gnp_state != GNILND_PEER_DOWN) {
                CNETERR("closing conn to %s: error %d\n",
                       libcfs_nid2str(peer->gnp_nid), error);
        } else {
@@ -737,6 +737,11 @@ kgnilnd_complete_closed_conn(kgn_conn_t *conn)
                 kgnilnd_conn_state2str(conn));
 
        LASSERT(list_empty(&conn->gnc_hashlist));
+       /* We shouldnt be on the delay list, the conn can 
+        * get added to this list during a retransmit, and retransmits
+        * only occur within scheduler threads.
+        */
+       LASSERT(list_empty(&conn->gnc_delaylist));
 
        /* we've sent the close, start nuking */
        if (CFS_FAIL_CHECK(CFS_FAIL_GNI_SCHEDULE_COMPLETE))
@@ -808,19 +813,13 @@ kgnilnd_complete_closed_conn(kgn_conn_t *conn)
        logmsg = (nlive + nrdma + nq_rdma);
 
        if (logmsg) {
-               if (conn->gnc_peer->gnp_down == GNILND_RCA_NODE_UP) {
-                       CNETERR("Closed conn 0x%p->%s (errno %d, peer errno %d): "
-                               "canceled %d TX, %d/%d RDMA\n",
-                               conn, libcfs_nid2str(conn->gnc_peer->gnp_nid),
-                               conn->gnc_error, conn->gnc_peer_error,
-                               nlive, nq_rdma, nrdma);
-               } else {
-                       CDEBUG(D_NET, "Closed conn 0x%p->%s (errno %d,"
-                               " peer errno %d): canceled %d TX, %d/%d RDMA\n",
-                               conn, libcfs_nid2str(conn->gnc_peer->gnp_nid),
-                               conn->gnc_error, conn->gnc_peer_error,
-                               nlive, nq_rdma, nrdma);
-               }
+               int level = conn->gnc_peer->gnp_state == GNILND_PEER_UP ?
+                               D_NETERROR : D_NET;
+               CDEBUG(level, "Closed conn 0x%p->%s (errno %d,"
+                       " peer errno %d): canceled %d TX, %d/%d RDMA\n",
+                       conn, libcfs_nid2str(conn->gnc_peer->gnp_nid),
+                       conn->gnc_error, conn->gnc_peer_error,
+                       nlive, nq_rdma, nrdma);
        }
 
        kgnilnd_destroy_conn_ep(conn);
@@ -924,8 +923,8 @@ kgnilnd_set_conn_params(kgn_dgram_t *dgram)
 
        /* log this for help in debuggin SMSG buffer re-use */
        CDEBUG(D_NET, "conn %p src %s dst %s smsg %p acquired"
-               " local cqid %u SMSG %p->%u hndl "LPX64"."LPX64
-               " remote cqid %u SMSG %p->%u hndl "LPX64"."LPX64"\n",
+               " local cqid %u SMSG %p->%u hndl %#llx.%#llx"
+               " remote cqid %u SMSG %p->%u hndl %#llx.%#llx\n",
                conn, libcfs_nid2str(connreq->gncr_srcnid),
                libcfs_nid2str(connreq->gncr_dstnid),
                &conn->gnpr_smsg_attr,
@@ -1004,7 +1003,7 @@ kgnilnd_create_peer_safe(kgn_peer_t **peerp,
                return -ENOMEM;
        }
        peer->gnp_nid = nid;
-       peer->gnp_down = node_state;
+       peer->gnp_state = node_state;
 
        /* translate from nid to nic addr & store */
        rc = kgnilnd_nid_to_nicaddrs(LNET_NIDADDR(nid), 1, &peer->gnp_host_id);
@@ -1224,7 +1223,7 @@ kgnilnd_release_purgatory_list(struct list_head *conn_list)
                list_for_each_entry_safe(gmp, gmpN, &conn->gnc_mdd_list,
                                         gmp_list) {
                        CDEBUG(D_NET,
-                              "dev %p releasing held mdd "LPX64"."LPX64"\n",
+                              "dev %p releasing held mdd %#llx.%#llx\n",
                               conn->gnc_device, gmp->gmp_map_key.qword1,
                               gmp->gmp_map_key.qword2);
 
@@ -1724,9 +1723,8 @@ kgnilnd_report_node_state(lnet_nid_t nid, int down)
                write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
 
                /* Don't add a peer for node up events */
-               if (down == GNILND_RCA_NODE_UP) {
+               if (down == GNILND_PEER_UP)
                        return 0;
-               }
 
                /* find any valid net - we don't care which one... */
                down_read(&kgnilnd_data.kgn_net_rw_sem);
@@ -1770,9 +1768,9 @@ kgnilnd_report_node_state(lnet_nid_t nid, int down)
                }
        }
 
-       peer->gnp_down = down;
+       peer->gnp_state = down;
 
-       if (down == GNILND_RCA_NODE_DOWN) {
+       if (down == GNILND_PEER_DOWN) {
                kgn_conn_t *conn;
 
                peer->gnp_down_event_time = jiffies;
@@ -1788,7 +1786,7 @@ kgnilnd_report_node_state(lnet_nid_t nid, int down)
 
        write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
 
-       if (down == GNILND_RCA_NODE_DOWN) {
+       if (down == GNILND_PEER_DOWN) {
                /* using ENETRESET so we don't get messages from
                 * kgnilnd_tx_done
                 */
@@ -2052,12 +2050,6 @@ kgnilnd_dev_init(kgn_device_t *dev)
                }
        }
 
-       rrc = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_IP, &kgnilnd_data.kgn_sock);
-       if (rrc < 0) {
-               CERROR("sock_create returned %d\n", rrc);
-               GOTO(failed, rrc);
-       }
-
        rc = kgnilnd_nicaddr_to_nid(dev->gnd_host_id, &dev->gnd_nid);
        if (rc < 0) {
                /* log messages during startup */
@@ -2120,9 +2112,12 @@ kgnilnd_dev_fini(kgn_device_t *dev)
        /* At quiesce or rest time, need to loop through and clear gnd_ready_conns ?*/
        LASSERTF(list_empty(&dev->gnd_ready_conns) &&
                 list_empty(&dev->gnd_map_tx) &&
-                list_empty(&dev->gnd_rdmaq),
-                "dev 0x%p ready_conns %d@0x%p map_tx %d@0x%p rdmaq %d@0x%p\n",
+                list_empty(&dev->gnd_rdmaq) &&
+                list_empty(&dev->gnd_delay_conns),
+                "dev 0x%p ready_conns %d@0x%p delay_conns %d@0x%p" 
+                "map_tx %d@0x%p rdmaq %d@0x%p\n",
                 dev, kgnilnd_count_list(&dev->gnd_ready_conns), &dev->gnd_ready_conns,
+                kgnilnd_count_list(&dev->gnd_delay_conns), &dev->gnd_delay_conns,
                 kgnilnd_count_list(&dev->gnd_map_tx), &dev->gnd_map_tx,
                 kgnilnd_count_list(&dev->gnd_rdmaq), &dev->gnd_rdmaq);
 
@@ -2132,7 +2127,7 @@ kgnilnd_dev_fini(kgn_device_t *dev)
                 dev->gnd_map_nphys, dev->gnd_map_physnop);
 
        LASSERTF(dev->gnd_map_nvirt == 0 && dev->gnd_map_virtnob == 0,
-               "%d virtual mappings of "LPU64" bytes still mapped\n",
+               "%d virtual mappings of %llu bytes still mapped\n",
                 dev->gnd_map_nvirt, dev->gnd_map_virtnob);
 
        LASSERTF(atomic_read(&dev->gnd_n_mdd) == 0 &&
@@ -2196,9 +2191,6 @@ kgnilnd_dev_fini(kgn_device_t *dev)
                dev->gnd_domain = NULL;
        }
 
-       if (kgnilnd_data.kgn_sock)
-               sock_release(kgnilnd_data.kgn_sock);
-
        EXIT;
 }
 
@@ -2246,6 +2238,7 @@ int kgnilnd_base_startup(void)
 
                dev->gnd_id = i;
                INIT_LIST_HEAD(&dev->gnd_ready_conns);
+               INIT_LIST_HEAD(&dev->gnd_delay_conns);
                INIT_LIST_HEAD(&dev->gnd_map_tx);
                INIT_LIST_HEAD(&dev->gnd_fma_buffs);
                mutex_init(&dev->gnd_cq_mutex);
@@ -2690,9 +2683,9 @@ kgnilnd_startup(lnet_ni_t *ni)
        kgn_net_t        *net;
        ENTRY;
 
-       LASSERTF(ni->ni_lnd == &the_kgnilnd,
+       LASSERTF(ni->ni_net->net_lnd == &the_kgnilnd,
                "bad LND 0x%p != the_kgnilnd @ 0x%p\n",
-               ni->ni_lnd, &the_kgnilnd);
+               ni->ni_net->net_lnd, &the_kgnilnd);
 
        if (kgnilnd_data.kgn_init == GNILND_INIT_NOTHING) {
                rc = kgnilnd_base_startup();
@@ -2712,8 +2705,12 @@ kgnilnd_startup(lnet_ni_t *ni)
        INIT_LIST_HEAD(&net->gnn_list);
        ni->ni_data = net;
        net->gnn_ni = ni;
-       ni->ni_maxtxcredits = *kgnilnd_tunables.kgn_credits;
-       ni->ni_peertxcredits = *kgnilnd_tunables.kgn_peer_credits;
+       if (!ni->ni_net->net_tunables_set) {
+               ni->ni_net->net_tunables.lct_max_tx_credits =
+                       *kgnilnd_tunables.kgn_credits;
+               ni->ni_net->net_tunables.lct_peer_tx_credits =
+                       *kgnilnd_tunables.kgn_peer_credits;
+       }
 
        if (*kgnilnd_tunables.kgn_peer_health) {
                int     fudge;
@@ -2723,9 +2720,10 @@ kgnilnd_startup(lnet_ni_t *ni)
                fudge = (GNILND_TO2KA(*kgnilnd_tunables.kgn_timeout) / GNILND_REAPER_NCHECKS);
                timeout = *kgnilnd_tunables.kgn_timeout + fudge;
 
-               if (*kgnilnd_tunables.kgn_peer_timeout >= timeout)
-                       ni->ni_peertimeout = *kgnilnd_tunables.kgn_peer_timeout;
-               else if (*kgnilnd_tunables.kgn_peer_timeout > -1) {
+               if (*kgnilnd_tunables.kgn_peer_timeout >= timeout) {
+                       ni->ni_net->net_tunables.lct_peer_timeout =
+                                *kgnilnd_tunables.kgn_peer_timeout;
+               } else if (*kgnilnd_tunables.kgn_peer_timeout > -1) {
                        LCONSOLE_ERROR("Peer_timeout is set to %d but needs to be >= %d\n",
                                        *kgnilnd_tunables.kgn_peer_timeout,
                                        timeout);
@@ -2733,10 +2731,10 @@ kgnilnd_startup(lnet_ni_t *ni)
                        LIBCFS_FREE(net, sizeof(*net));
                        GOTO(failed, rc = -EINVAL);
                } else
-                       ni->ni_peertimeout = timeout;
+                       ni->ni_net->net_tunables.lct_peer_timeout = timeout;
 
                LCONSOLE_INFO("Enabling LNet peer health for gnilnd, timeout %ds\n",
-                             ni->ni_peertimeout);
+                             ni->ni_net->net_tunables.lct_peer_timeout);
        }
 
        atomic_set(&net->gnn_refcount, 1);
@@ -2878,17 +2876,14 @@ out:
        EXIT;
 }
 
-void __exit
-kgnilnd_module_fini(void)
+static void __exit kgnilnd_exit(void)
 {
        lnet_unregister_lnd(&the_kgnilnd);
        kgnilnd_proc_fini();
        kgnilnd_remove_sysctl();
-       kgnilnd_tunables_fini();
 }
 
-int __init
-kgnilnd_module_init(void)
+static int __init kgnilnd_init(void)
 {
        int    rc;
 
@@ -2907,8 +2902,9 @@ kgnilnd_module_init(void)
 }
 
 MODULE_AUTHOR("Cray, Inc. <nic@cray.com>");
-MODULE_DESCRIPTION("Kernel Gemini LND v"KGNILND_BUILD_REV);
+MODULE_DESCRIPTION("Gemini LNet Network Driver");
+MODULE_VERSION(KGNILND_BUILD_REV);
 MODULE_LICENSE("GPL");
 
-module_init(kgnilnd_module_init);
-module_exit(kgnilnd_module_fini);
+module_init(kgnilnd_init);
+module_exit(kgnilnd_exit);