From 40d866095df3bb70ded1813f4852cab445ef678b Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Fri, 21 Aug 2009 12:28:33 +0000 Subject: [PATCH] RDS: Modularize RDMA and TCP transports Enable the building of transports as modules. Also, improve consistency of Kconfig messages in relation to other protocols, and move build dependency on IB from the RDS core code to the rds_rdma module. Signed-off-by: Andy Grover Signed-off-by: David S. Miller --- net/rds/Kconfig | 26 ++++++++++++++++++++------ net/rds/Makefile | 11 +++++++++-- net/rds/af_rds.c | 8 -------- net/rds/rdma_transport.c | 6 ++++++ 4 files changed, 35 insertions(+), 16 deletions(-) diff --git a/net/rds/Kconfig b/net/rds/Kconfig index 796773b5df9..ec753b3ae72 100644 --- a/net/rds/Kconfig +++ b/net/rds/Kconfig @@ -1,14 +1,28 @@ config RDS - tristate "Reliable Datagram Sockets (RDS) (EXPERIMENTAL)" - depends on INET && INFINIBAND_IPOIB && EXPERIMENTAL - depends on INFINIBAND && INFINIBAND_ADDR_TRANS + tristate "The RDS Protocol (EXPERIMENTAL)" + depends on INET && EXPERIMENTAL ---help--- - RDS provides reliable, sequenced delivery of datagrams - over Infiniband. + The RDS (Reliable Datagram Sockets) protocol provides reliable, + sequenced delivery of datagrams over Infiniband, iWARP, + or TCP. + +config RDS_RDMA + tristate "RDS over Infiniband and iWARP" + depends on RDS && INFINIBAND && INFINIBAND_ADDR_TRANS + ---help--- + Allow RDS to use Infiniband and iWARP as a transport. + This transport supports RDMA operations. + +config RDS_TCP + tristate "RDS over TCP" + depends on RDS + ---help--- + Allow RDS to use TCP as a transport. + This transport does not support RDMA operations. config RDS_DEBUG - bool "Debugging messages" + bool "RDS debugging messages" depends on RDS default n diff --git a/net/rds/Makefile b/net/rds/Makefile index 51f27585fa0..b46eca10968 100644 --- a/net/rds/Makefile +++ b/net/rds/Makefile @@ -1,13 +1,20 @@ obj-$(CONFIG_RDS) += rds.o rds-y := af_rds.o bind.o cong.o connection.o info.o message.o \ recv.o send.o stats.o sysctl.o threads.o transport.o \ - loop.o page.o rdma.o \ - rdma_transport.o \ + loop.o page.o rdma.o + +obj-$(CONFIG_RDS_RDMA) += rds_rdma.o +rds_rdma-objs := rdma_transport.o \ ib.o ib_cm.o ib_recv.o ib_ring.o ib_send.o ib_stats.o \ ib_sysctl.o ib_rdma.o \ iw.o iw_cm.o iw_recv.o iw_ring.o iw_send.o iw_stats.o \ iw_sysctl.o iw_rdma.o + +obj-$(CONFIG_RDS_TCP) += rds_tcp.o +rds_tcp-objs := tcp.o tcp_connect.o tcp_listen.o tcp_recv.o \ + tcp_send.o tcp_stats.o + ifeq ($(CONFIG_RDS_DEBUG), y) EXTRA_CFLAGS += -DDEBUG endif diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index b11e7e52786..108ed2e671c 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -39,7 +39,6 @@ #include "rds.h" #include "rdma.h" -#include "rdma_transport.h" /* this is just used for stats gathering :/ */ static DEFINE_SPINLOCK(rds_sock_lock); @@ -509,7 +508,6 @@ out: static void __exit rds_exit(void) { - rds_rdma_exit(); sock_unregister(rds_family_ops.family); proto_unregister(&rds_proto); rds_conn_exit(); @@ -549,14 +547,8 @@ static int __init rds_init(void) rds_info_register_func(RDS_INFO_SOCKETS, rds_sock_info); rds_info_register_func(RDS_INFO_RECV_MESSAGES, rds_sock_inc_info); - /* ib/iwarp transports currently compiled-in */ - ret = rds_rdma_init(); - if (ret) - goto out_sock; goto out; -out_sock: - sock_unregister(rds_family_ops.family); out_proto: proto_unregister(&rds_proto); out_stats: diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c index 7a6c748cb56..9ece910ea39 100644 --- a/net/rds/rdma_transport.c +++ b/net/rds/rdma_transport.c @@ -203,6 +203,7 @@ err_iw_init: out: return ret; } +module_init(rds_rdma_init); void rds_rdma_exit(void) { @@ -211,4 +212,9 @@ void rds_rdma_exit(void) rds_ib_exit(); rds_iw_exit(); } +module_exit(rds_rdma_exit); + +MODULE_AUTHOR("Oracle Corporation "); +MODULE_DESCRIPTION("RDS: IB/iWARP transport"); +MODULE_LICENSE("Dual BSD/GPL");