diff options
| -rw-r--r-- | include/linux/sunrpc/debug.h | 1 | ||||
| -rw-r--r-- | include/linux/sunrpc/svc_xprt.h | 31 | ||||
| -rw-r--r-- | net/sunrpc/Makefile | 3 | ||||
| -rw-r--r-- | net/sunrpc/svc_xprt.c | 83 |
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); |