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/*
* Unix SMB/CIFS implementation.
* Join infiniband wrapper and ctdb.
*
* Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006
*
* Major code contributions by Peter Somogyi <psomogyi@gamax.hu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "lib/events/events.h"
#include <system/network.h>
#include <assert.h>
#include "ctdb_private.h"
#include "ibwrapper.h"
#include "ibw_ctdb.h"
/* not nice; temporary workaround for the current implementation... */
static void *last_key = NULL;
static int ctdb_ibw_listen(struct ctdb_context *ctdb, int backlog)
{
struct ibw_ctx *ictx = talloc_get_type(ctdb->private, struct ibw_ctx);
struct sockaddr_in my_addr;
assert(ictx!=NULL);
memset(&my_addr, 0, sizeof(struct sockaddr_in));
my_addr.sin_port = htons(ctdb->address.port);
my_addr.sin_family = PF_INET;
inet_pton(AF_INET, ctdb->address.address, &my_addr.sin_addr);
if (ibw_bind(ictx, &my_addr)) {
DEBUG(0, ("ctdb_ibw_listen: ibw_bind failed\n"));
return -1;
}
if (ibw_listen(ictx, backlog)) {
DEBUG(0, ("ctdb_ibw_listen: ibw_listen failed\n"));
return -1;
}
return 0;
}
int ctdb_ibw_node_connect(struct ibw_ctx *ictx, struct ctdb_node *node)
{
struct sockaddr_in sock_out;
inet_pton(AF_INET, node->address.address, &sock_out.sin_addr);
sock_out.sin_port = htons(node->address.port);
sock_out.sin_family = PF_INET;
if (ibw_connect(ictx, &sock_out, node)) {
DEBUG(0, ("ctdb_ibw_node_connect: ibw_connect failed\n"));
return -1;
}
/* continues at ibw_ctdb.c/IBWC_CONNECTED in good case */
return 0;
}
/*
* Start infiniband
*/
static int ctdb_ibw_start(struct ctdb_context *ctdb)
{
struct ibw_ctx *ictx = talloc_get_type(ctdb->private, struct ibw_ctx);
int i;
/* listen on our own address */
if (ctdb_ibw_listen(ctdb, 10)) /* TODO: backlog as param */
return -1;
/* everything async here */
for (i=0;i<ctdb->num_nodes;i++) {
struct ctdb_node *node = ctdb->nodes[i];
if (!(ctdb->flags & CTDB_FLAG_SELF_CONNECT) &&
ctdb_same_address(&ctdb->address, &node->address))
continue;
ctdb_ibw_node_connect(ictx, node);
}
return 0;
}
/*
* initialise ibw portion of a ctdb node
*/
static int ctdb_ibw_add_node(struct ctdb_node *node)
{
/* TODO: clarify whether is this necessary for us ?
- why not enough doing such thing internally at connect time ? */
return 0;
}
/*
* transport packet allocator - allows transport to control memory for packets
*/
static void *ctdb_ibw_allocate_pkt(struct ctdb_node *node, size_t size)
{
struct ibw_conn *conn = NULL;
void *buf = NULL;
if (ibw_alloc_send_buf(conn, &buf, &last_key, size))
return NULL;
return buf;
}
static int ctdb_ibw_queue_pkt(struct ctdb_node *node, uint8_t *data, uint32_t length)
{
struct ibw_conn *conn = talloc_get_type(node->private, struct ibw_conn);
int rc;
rc = ibw_send(conn, data, last_key, length);
last_key = NULL;
return rc;
}
static void ctdb_ibw_dealloc_pkt(struct ctdb_node *node, void *data)
{
if (last_key) {
struct ibw_conn *conn = talloc_get_type(node->private, struct ibw_conn);
assert(conn!=NULL);
ibw_cancel_send_buf(conn, data, last_key);
} /* else ibw_send is already using it and will free it after completion */
}
static int ctdb_ibw_stop(struct ctdb_context *cctx)
{
struct ibw_ctx *ictx = talloc_get_type(cctx->private, struct ibw_ctx);
assert(ictx!=NULL);
return ibw_stop(ictx);
}
static const struct ctdb_methods ctdb_ibw_methods = {
.start = ctdb_ibw_start,
.add_node = ctdb_ibw_add_node,
.queue_pkt = ctdb_ibw_queue_pkt,
.allocate_pkt = ctdb_ibw_allocate_pkt,
.dealloc_pkt = ctdb_ibw_dealloc_pkt,
.stop = ctdb_ibw_stop
};
/*
* initialise ibw portion of ctdb
*/
int ctdb_ibw_init(struct ctdb_context *ctdb)
{
struct ibw_ctx *ictx;
ictx = ibw_init(
NULL, //struct ibw_initattr *attr, /* TODO */
0, //int nattr, /* TODO */
ctdb,
ctdb_ibw_connstate_handler,
ctdb_ibw_receive_handler,
ctdb->ev);
if (ictx==NULL) {
DEBUG(0, ("ctdb_ibw_init: ibw_init failed\n"));
return -1;
}
ctdb->methods = &ctdb_ibw_methods;
ctdb->private = ictx;
return 0;
}
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