diff options
| -rw-r--r-- | net/rds/ib.c | 1 | ||||
| -rw-r--r-- | net/rds/iw.c | 1 | ||||
| -rw-r--r-- | net/rds/rds.h | 6 | ||||
| -rw-r--r-- | net/rds/tcp.c | 1 | ||||
| -rw-r--r-- | net/rds/transport.c | 29 |
5 files changed, 28 insertions, 10 deletions
diff --git a/net/rds/ib.c b/net/rds/ib.c index 868559a..536ebe5 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -282,6 +282,7 @@ struct rds_transport rds_ib_transport = { .flush_mrs = rds_ib_flush_mrs, .t_owner = THIS_MODULE, .t_name = "infiniband", + .t_type = RDS_TRANS_IB }; int __init rds_ib_init(void) diff --git a/net/rds/iw.c b/net/rds/iw.c index f5e9a29..db224f7 100644 --- a/net/rds/iw.c +++ b/net/rds/iw.c @@ -284,6 +284,7 @@ struct rds_transport rds_iw_transport = { .flush_mrs = rds_iw_flush_mrs, .t_owner = THIS_MODULE, .t_name = "iwarp", + .t_type = RDS_TRANS_IWARP, .t_prefer_loopback = 1, }; diff --git a/net/rds/rds.h b/net/rds/rds.h index 290566c..85d6f89 100644 --- a/net/rds/rds.h +++ b/net/rds/rds.h @@ -311,11 +311,17 @@ struct rds_notifier { * flag and header. */ +#define RDS_TRANS_IB 0 +#define RDS_TRANS_IWARP 1 +#define RDS_TRANS_TCP 2 +#define RDS_TRANS_COUNT 3 + struct rds_transport { char t_name[TRANSNAMSIZ]; struct list_head t_item; struct module *t_owner; unsigned int t_prefer_loopback:1; + unsigned int t_type; int (*laddr_check)(__be32 addr); int (*conn_alloc)(struct rds_connection *conn, gfp_t gfp); diff --git a/net/rds/tcp.c b/net/rds/tcp.c index e0ac900..b5198ae 100644 --- a/net/rds/tcp.c +++ b/net/rds/tcp.c @@ -271,6 +271,7 @@ struct rds_transport rds_tcp_transport = { .exit = rds_tcp_exit, .t_owner = THIS_MODULE, .t_name = "tcp", + .t_type = RDS_TRANS_TCP, .t_prefer_loopback = 1, }; diff --git a/net/rds/transport.c b/net/rds/transport.c index 56a5309..7e10679 100644 --- a/net/rds/transport.c +++ b/net/rds/transport.c @@ -37,7 +37,7 @@ #include "rds.h" #include "loop.h" -static LIST_HEAD(rds_transports); +static struct rds_transport *transports[RDS_TRANS_COUNT]; static DECLARE_RWSEM(rds_trans_sem); int rds_trans_register(struct rds_transport *trans) @@ -46,8 +46,13 @@ int rds_trans_register(struct rds_transport *trans) down_write(&rds_trans_sem); - list_add_tail(&trans->t_item, &rds_transports); - printk(KERN_INFO "Registered RDS/%s transport\n", trans->t_name); + if (transports[trans->t_type]) + printk(KERN_ERR "RDS Transport type %d already registered\n", + trans->t_type); + else { + transports[trans->t_type] = trans; + printk(KERN_INFO "Registered RDS/%s transport\n", trans->t_name); + } up_write(&rds_trans_sem); @@ -59,7 +64,7 @@ void rds_trans_unregister(struct rds_transport *trans) { down_write(&rds_trans_sem); - list_del_init(&trans->t_item); + transports[trans->t_type] = NULL; printk(KERN_INFO "Unregistered RDS/%s transport\n", trans->t_name); up_write(&rds_trans_sem); @@ -68,16 +73,17 @@ EXPORT_SYMBOL_GPL(rds_trans_unregister); struct rds_transport *rds_trans_get_preferred(__be32 addr) { - struct rds_transport *trans; struct rds_transport *ret = NULL; + int i; if (IN_LOOPBACK(ntohl(addr))) return &rds_loop_transport; down_read(&rds_trans_sem); - list_for_each_entry(trans, &rds_transports, t_item) { - if (trans->laddr_check(addr) == 0) { - ret = trans; + for (i = 0; i < RDS_TRANS_COUNT; i++) + { + if (transports[i] && (transports[i]->laddr_check(addr) == 0)) { + ret = transports[i]; break; } } @@ -99,12 +105,15 @@ unsigned int rds_trans_stats_info_copy(struct rds_info_iterator *iter, struct rds_transport *trans; unsigned int total = 0; unsigned int part; + int i; rds_info_iter_unmap(iter); down_read(&rds_trans_sem); - list_for_each_entry(trans, &rds_transports, t_item) { - if (trans->stats_info_copy == NULL) + for (i = 0; i < RDS_TRANS_COUNT; i++) + { + trans = transports[i]; + if (!trans || !trans->stats_info_copy) continue; part = trans->stats_info_copy(iter, avail); |