2 * Unix SMB/CIFS implementation.
3 * Join infiniband wrapper and ctdb.
5 * Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006
7 * Major code contributions by Peter Somogyi <psomogyi@gamax.hu>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include "lib/events/events.h"
26 #include <system/network.h>
28 #include "ctdb_private.h"
29 #include "ibwrapper.h"
32 int ctdb_ibw_node_connect(struct ctdb_node *node)
34 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
38 assert(cn->conn!=NULL);
39 struct sockaddr_in sock_out;
41 memset(&sock_out, 0, sizeof(struct sockaddr_in));
42 inet_pton(AF_INET, node->address.address, &sock_out.sin_addr);
43 sock_out.sin_port = htons(node->address.port);
44 sock_out.sin_family = PF_INET;
46 rc = ibw_connect(cn->conn, &sock_out, node);
48 DEBUG(0, ("ctdb_ibw_node_connect/ibw_connect failed - retrying...\n"));
49 /* try again once a second */
50 event_add_timed(node->ctdb->ev, node, timeval_current_ofs(1, 0),
51 ctdb_ibw_node_connect_event, node);
54 /* continues at ibw_ctdb.c/IBWC_CONNECTED in good case */
58 void ctdb_ibw_node_connect_event(struct event_context *ev, struct timed_event *te,
59 struct timeval t, void *private_data)
61 struct ctdb_node *node = talloc_get_type(private_data, struct ctdb_node);
63 ctdb_ibw_node_connect(node);
66 int ctdb_ibw_connstate_handler(struct ibw_ctx *ctx, struct ibw_conn *conn)
69 /* ctx->state changed */
71 case IBWS_INIT: /* ctx start - after ibw_init */
73 case IBWS_READY: /* after ibw_bind & ibw_listen */
75 case IBWS_CONNECT_REQUEST: /* after [IBWS_READY + incoming request] */
76 /* => [(ibw_accept)IBWS_READY | (ibw_disconnect)STOPPED | ERROR] */
77 if (ibw_accept(ctx, conn, NULL)) {
78 DEBUG(0, ("connstate_handler/ibw_accept failed\n"));
80 } /* else continue in IBWC_CONNECTED */
82 case IBWS_STOPPED: /* normal stop <= ibw_disconnect+(IBWS_READY | IBWS_CONNECT_REQUEST) */
83 /* TODO: have a CTDB upcall for which CTDB should wait in a (final) loop */
85 case IBWS_ERROR: /* abnormal state; ibw_stop must be called after this */
94 /* conn->state changed */
96 case IBWC_INIT: /* conn start - internal state */
98 case IBWC_CONNECTED: { /* after ibw_accept or ibw_connect */
99 struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node);
100 if (node!=NULL) { /* after ibw_connect */
101 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
103 node->ctdb->upcalls->node_connected(node);
104 ctdb_flush_cn_queue(cn);
105 } else { /* after ibw_accept */
106 /* NOP in CTDB case */
109 case IBWC_DISCONNECTED: { /* after ibw_disconnect */
110 struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node);
112 node->ctdb->upcalls->node_dead(node);
114 /* normal + intended disconnect => not reconnecting in this layer */
117 struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node);
119 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
120 struct ibw_ctx *ictx = cn->conn->ctx;
122 DEBUG(10, ("IBWC_ERROR, reconnecting...\n"));
123 talloc_free(cn->conn); /* internal queue content is destroyed */
124 cn->conn = (void *)ibw_conn_new(ictx, node);
125 event_add_timed(node->ctdb->ev, node, timeval_current_ofs(1, 0),
126 ctdb_ibw_node_connect_event, node);
138 int ctdb_ibw_receive_handler(struct ibw_conn *conn, void *buf, int n)
140 struct ctdb_context *ctdb = talloc_get_type(conn->ctx->ctx_userdata, struct ctdb_context);
141 void *buf2; /* future TODO: a solution for removal of this */
146 assert(conn->state==IBWC_CONNECTED);
148 /* so far "buf" is an ib-registered memory area
149 * and being reused for next receive
150 * noticed that HL requires talloc-ed memory to be stolen */
151 buf2 = talloc_zero_size(conn, n);
152 memcpy(buf2, buf, n);
154 ctdb->upcalls->recv_pkt(ctdb, (uint8_t *)buf2, (uint32_t)n);