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-rw-r--r--include/linux/sunrpc/debug.h1
-rw-r--r--include/linux/sunrpc/svc_xprt.h31
-rw-r--r--net/sunrpc/Makefile3
-rw-r--r--net/sunrpc/svc_xprt.c83
4 files changed, 117 insertions, 1 deletions
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 3912cf16361e..092fcfa9ceb9 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -21,6 +21,7 @@
#define RPCDBG_SCHED 0x0040
#define RPCDBG_TRANS 0x0080
#define RPCDBG_SVCSOCK 0x0100
+#define RPCDBG_SVCXPRT 0x0100
#define RPCDBG_SVCDSP 0x0200
#define RPCDBG_MISC 0x0400
#define RPCDBG_CACHE 0x0800
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
new file mode 100644
index 000000000000..fe8e787bb95d
--- /dev/null
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -0,0 +1,31 @@
+/*
+ * linux/include/linux/sunrpc/svc_xprt.h
+ *
+ * RPC server transport I/O
+ */
+
+#ifndef SUNRPC_SVC_XPRT_H
+#define SUNRPC_SVC_XPRT_H
+
+#include <linux/sunrpc/svc.h>
+
+struct svc_xprt_ops {
+};
+
+struct svc_xprt_class {
+ const char *xcl_name;
+ struct module *xcl_owner;
+ struct svc_xprt_ops *xcl_ops;
+ struct list_head xcl_list;
+};
+
+struct svc_xprt {
+ struct svc_xprt_class *xpt_class;
+ struct svc_xprt_ops *xpt_ops;
+};
+
+int svc_reg_xprt_class(struct svc_xprt_class *);
+void svc_unreg_xprt_class(struct svc_xprt_class *);
+void svc_xprt_init(struct svc_xprt_class *, struct svc_xprt *);
+
+#endif /* SUNRPC_SVC_XPRT_H */
diff --git a/net/sunrpc/Makefile b/net/sunrpc/Makefile
index 5c69a725e530..92e1dbe50947 100644
--- a/net/sunrpc/Makefile
+++ b/net/sunrpc/Makefile
@@ -11,6 +11,7 @@ sunrpc-y := clnt.o xprt.o socklib.o xprtsock.o sched.o \
auth.o auth_null.o auth_unix.o \
svc.o svcsock.o svcauth.o svcauth_unix.o \
rpcb_clnt.o timer.o xdr.o \
- sunrpc_syms.o cache.o rpc_pipe.o
+ sunrpc_syms.o cache.o rpc_pipe.o \
+ svc_xprt.o
sunrpc-$(CONFIG_PROC_FS) += stats.o
sunrpc-$(CONFIG_SYSCTL) += sysctl.o
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
new file mode 100644
index 000000000000..fe5270fae336
--- /dev/null
+++ b/net/sunrpc/svc_xprt.c
@@ -0,0 +1,83 @@
+/*
+ * linux/net/sunrpc/svc_xprt.c
+ *
+ * Author: Tom Tucker <tom@opengridcomputing.com>
+ */
+
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/net.h>
+#include <linux/in.h>
+#include <linux/inet.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/file.h>
+#include <linux/freezer.h>
+#include <net/sock.h>
+#include <net/checksum.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/tcp_states.h>
+#include <linux/uaccess.h>
+#include <asm/ioctls.h>
+
+#include <linux/sunrpc/types.h>
+#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/svcsock.h>
+#include <linux/sunrpc/stats.h>
+#include <linux/sunrpc/svc_xprt.h>
+
+#define RPCDBG_FACILITY RPCDBG_SVCXPRT
+
+/* List of registered transport classes */
+static DEFINE_SPINLOCK(svc_xprt_class_lock);
+static LIST_HEAD(svc_xprt_class_list);
+
+int svc_reg_xprt_class(struct svc_xprt_class *xcl)
+{
+ struct svc_xprt_class *cl;
+ int res = -EEXIST;
+
+ dprintk("svc: Adding svc transport class '%s'\n", xcl->xcl_name);
+
+ INIT_LIST_HEAD(&xcl->xcl_list);
+ spin_lock(&svc_xprt_class_lock);
+ /* Make sure there isn't already a class with the same name */
+ list_for_each_entry(cl, &svc_xprt_class_list, xcl_list) {
+ if (strcmp(xcl->xcl_name, cl->xcl_name) == 0)
+ goto out;
+ }
+ list_add_tail(&xcl->xcl_list, &svc_xprt_class_list);
+ res = 0;
+out:
+ spin_unlock(&svc_xprt_class_lock);
+ return res;
+}
+EXPORT_SYMBOL_GPL(svc_reg_xprt_class);
+
+void svc_unreg_xprt_class(struct svc_xprt_class *xcl)
+{
+ dprintk("svc: Removing svc transport class '%s'\n", xcl->xcl_name);
+ spin_lock(&svc_xprt_class_lock);
+ list_del_init(&xcl->xcl_list);
+ spin_unlock(&svc_xprt_class_lock);
+}
+EXPORT_SYMBOL_GPL(svc_unreg_xprt_class);
+
+/*
+ * Called by transport drivers to initialize the transport independent
+ * portion of the transport instance.
+ */
+void svc_xprt_init(struct svc_xprt_class *xcl, struct svc_xprt *xprt)
+{
+ memset(xprt, 0, sizeof(*xprt));
+ xprt->xpt_class = xcl;
+ xprt->xpt_ops = xcl->xcl_ops;
+}
+EXPORT_SYMBOL_GPL(svc_xprt_init);