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RDS: Modularize RDMA and TCP transports

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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 <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Grover 2009-08-21 12:28:33 +00:00 committed by David S. Miller
parent 616b757ae1
commit 40d866095d
4 changed files with 35 additions and 16 deletions
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26
net/rds/Kconfig
View file

@ -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

11
net/rds/Makefile
View file

@ -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

8
net/rds/af_rds.c
View file

@ -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:

6
net/rds/rdma_transport.c
View file

@ -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 <rds-devel@oss.oracle.com>");
MODULE_DESCRIPTION("RDS: IB/iWARP transport");
MODULE_LICENSE("Dual BSD/GPL");