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 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 if (ctdb_ibw_get_address(ctdb, ctdb->address.address, &my_addr.sin_addr))
44 if (ibw_bind(ictx, &my_addr)) {
45 DEBUG(0, ("ctdb_ibw_listen: ibw_bind failed\n"));
49 if (ibw_listen(ictx, backlog)) {
50 DEBUG(0, ("ctdb_ibw_listen: ibw_listen failed\n"));
58 * initialise ibw portion of a ctdb node
60 static int ctdb_ibw_add_node(struct ctdb_node *node)
62 struct ibw_ctx *ictx = talloc_get_type(node->ctdb->private_data, struct ibw_ctx);
63 struct ctdb_ibw_node *cn = talloc_zero(node, struct ctdb_ibw_node);
66 cn->conn = ibw_conn_new(ictx, node);
67 node->private_data = (void *)cn;
69 return (cn->conn!=NULL ? 0 : -1);
73 * initialise infiniband
75 static int ctdb_ibw_initialise(struct ctdb_context *ctdb)
79 ret = ctdb_ibw_init(ctdb);
84 for (i=0; i<ctdb->num_nodes; i++) {
85 if (ctdb_ibw_add_node(ctdb->nodes[i]) != 0) {
86 DEBUG(0, ("methods->add_node failed at %d\n", i));
98 static int ctdb_ibw_start(struct ctdb_context *ctdb)
102 /* listen on our own address */
103 if (ctdb_ibw_listen(ctdb, 10)) /* TODO: backlog as param */
106 /* everything async here */
107 for (i=0;i<ctdb->num_nodes;i++) {
108 struct ctdb_node *node = ctdb->nodes[i];
109 if (!(ctdb->flags & CTDB_FLAG_SELF_CONNECT) &&
110 ctdb_same_address(&ctdb->address, &node->address))
112 ctdb_ibw_node_connect(node);
118 static int ctdb_ibw_send_pkt(struct ibw_conn *conn, uint8_t *data, uint32_t length)
122 if (ibw_alloc_send_buf(conn, &buf, &key, length)) {
123 DEBUG(0, ("queue_pkt/ibw_alloc_send_buf failed\n"));
127 memcpy(buf, data, length);
128 return ibw_send(conn, buf, key, length);
131 int ctdb_flush_cn_queue(struct ctdb_ibw_node *cn)
133 struct ctdb_ibw_msg *p;
138 rc = ctdb_ibw_send_pkt(cn->conn, p->data, p->length);
140 return -1; /* will be retried later when conn is up */
142 DLIST_REMOVE(cn->queue, p);
144 talloc_free(p); /* it will talloc_free p->data as well */
147 /* cn->queue_last = NULL is not needed - see DLIST_ADD_AFTER */
152 static int ctdb_ibw_queue_pkt(struct ctdb_node *node, uint8_t *data, uint32_t length)
154 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
157 assert(length>=sizeof(uint32_t));
160 if (cn->conn==NULL) {
161 DEBUG(0, ("ctdb_ibw_queue_pkt: conn is NULL\n"));
165 if (cn->conn->state==IBWC_CONNECTED) {
166 rc = ctdb_ibw_send_pkt(cn->conn, data, length);
168 struct ctdb_ibw_msg *p = talloc_zero(cn, struct ctdb_ibw_msg);
169 p->data = talloc_memdup(p, data, length);
172 DLIST_ADD_AFTER(cn->queue, p, cn->queue_last);
183 * transport packet allocator - allows transport to control memory for packets
185 static void *ctdb_ibw_allocate_pkt(TALLOC_CTX *mem_ctx, size_t size)
187 /* TODO: use ibw_alloc_send_buf instead... */
188 return talloc_size(mem_ctx, size);
193 static int ctdb_ibw_stop(struct ctdb_context *cctx)
195 struct ibw_ctx *ictx = talloc_get_type(cctx->private_data, struct ibw_ctx);
198 return ibw_stop(ictx);
201 #endif /* __NOTDEF__ */
203 static const struct ctdb_methods ctdb_ibw_methods = {
204 .initialise= ctdb_ibw_initialise,
205 .start = ctdb_ibw_start,
206 .queue_pkt = ctdb_ibw_queue_pkt,
207 .add_node = ctdb_ibw_add_node,
208 .allocate_pkt = ctdb_ibw_allocate_pkt,
210 // .stop = ctdb_ibw_stop
214 * initialise ibw portion of ctdb
216 int ctdb_ibw_init(struct ctdb_context *ctdb)
218 struct ibw_ctx *ictx;
220 DEBUG(10, ("ctdb_ibw_init invoked...\n"));
222 NULL, //struct ibw_initattr *attr, /* TODO */
223 0, //int nattr, /* TODO */
225 ctdb_ibw_connstate_handler,
226 ctdb_ibw_receive_handler,
230 DEBUG(0, ("ctdb_ibw_init: ibw_init failed\n"));
234 ctdb->methods = &ctdb_ibw_methods;
235 ctdb->private_data = ictx;
237 DEBUG(10, ("ctdb_ibw_init succeeded.\n"));