rpc_channel
static int vmw_open_channel(struct rpc_channel *channel, unsigned int protocol)
static int vmw_close_channel(struct rpc_channel *channel)
static unsigned long vmw_port_hb_out(struct rpc_channel *channel,
static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply,
static int vmw_send_msg(struct rpc_channel *channel, const char *msg)
static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
struct rpc_channel channel;
struct rpc_channel channel;
struct rpc_channel channel;