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 3 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 static int ctdb_ibw_listen(struct ctdb_context *ctdb, int backlog)
34 struct ibw_ctx *ictx = talloc_get_type(ctdb->private_data, struct ibw_ctx);
35 struct sockaddr_in my_addr;
38 memset(&my_addr, 0, sizeof(struct sockaddr_in));
39 my_addr.sin_port = htons(ctdb->address.port);
40 my_addr.sin_family = PF_INET;
41 inet_pton(AF_INET, ctdb->address.address, &my_addr.sin_addr);
43 if (ibw_bind(ictx, &my_addr)) {
44 DEBUG(0, ("ctdb_ibw_listen: ibw_bind failed\n"));
48 if (ibw_listen(ictx, backlog)) {
49 DEBUG(0, ("ctdb_ibw_listen: ibw_listen failed\n"));
59 static int ctdb_ibw_start(struct ctdb_context *ctdb)
63 /* listen on our own address */
64 if (ctdb_ibw_listen(ctdb, 10)) /* TODO: backlog as param */
67 /* everything async here */
68 for (i=0;i<ctdb->num_nodes;i++) {
69 struct ctdb_node *node = ctdb->nodes[i];
70 if (!(ctdb->flags & CTDB_FLAG_SELF_CONNECT) &&
71 ctdb_same_address(&ctdb->address, &node->address))
73 ctdb_ibw_node_connect(node);
80 * initialise ibw portion of a ctdb node
82 static int ctdb_ibw_add_node(struct ctdb_node *node)
84 struct ibw_ctx *ictx = talloc_get_type(node->ctdb->private_data, struct ibw_ctx);
85 struct ctdb_ibw_node *cn = talloc_zero(node, struct ctdb_ibw_node);
88 cn->conn = ibw_conn_new(ictx, node);
89 node->private_data = (void *)cn;
91 return (cn->conn!=NULL ? 0 : -1);
94 static int ctdb_ibw_send_pkt(struct ibw_conn *conn, uint8_t *data, uint32_t length)
98 if (ibw_alloc_send_buf(conn, &buf, &key, length)) {
99 DEBUG(0, ("queue_pkt/ibw_alloc_send_buf failed\n"));
103 memcpy(buf, data, length);
104 return ibw_send(conn, buf, key, length);
107 int ctdb_flush_cn_queue(struct ctdb_ibw_node *cn)
109 struct ctdb_ibw_msg *p;
114 rc = ctdb_ibw_send_pkt(cn->conn, p->data, p->length);
116 return -1; /* will be retried later when conn is up */
118 DLIST_REMOVE(cn->queue, p);
120 talloc_free(p); /* it will talloc_free p->data as well */
123 /* cn->queue_last = NULL is not needed - see DLIST_ADD_AFTER */
128 static int ctdb_ibw_queue_pkt(struct ctdb_node *node, uint8_t *data, uint32_t length)
130 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
133 assert(length>=sizeof(uint32_t));
136 if (cn->conn==NULL) {
137 DEBUG(0, ("ctdb_ibw_queue_pkt: conn is NULL\n"));
141 if (cn->conn->state==IBWC_CONNECTED) {
142 rc = ctdb_ibw_send_pkt(cn->conn, data, length);
144 struct ctdb_ibw_msg *p = talloc_zero(cn, struct ctdb_ibw_msg);
145 p->data = talloc_memdup(p, data, length);
148 DLIST_ADD_AFTER(cn->queue, p, cn->queue_last);
159 * transport packet allocator - allows transport to control memory for packets
161 static void *ctdb_ibw_allocate_pkt(TALLOC_CTX *mem_ctx, size_t size)
163 /* TODO: use ibw_alloc_send_buf instead... */
164 return talloc_size(mem_ctx, size);
169 static int ctdb_ibw_stop(struct ctdb_context *cctx)
171 struct ibw_ctx *ictx = talloc_get_type(cctx->private_data, struct ibw_ctx);
174 return ibw_stop(ictx);
177 #endif /* __NOTDEF__ */
179 static const struct ctdb_methods ctdb_ibw_methods = {
180 .start = ctdb_ibw_start,
181 .add_node = ctdb_ibw_add_node,
182 .queue_pkt = ctdb_ibw_queue_pkt,
183 .allocate_pkt = ctdb_ibw_allocate_pkt,
185 // .stop = ctdb_ibw_stop
189 * initialise ibw portion of ctdb
191 int ctdb_ibw_init(struct ctdb_context *ctdb)
193 struct ibw_ctx *ictx;
195 DEBUG(10, ("ctdb_ibw_init invoked...\n"));
197 NULL, //struct ibw_initattr *attr, /* TODO */
198 0, //int nattr, /* TODO */
200 ctdb_ibw_connstate_handler,
201 ctdb_ibw_receive_handler,
205 DEBUG(0, ("ctdb_ibw_init: ibw_init failed\n"));
209 ctdb->methods = &ctdb_ibw_methods;
210 ctdb->private_data = ictx;
212 DEBUG(10, ("ctdb_ibw_init succeeded.\n"));