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[PATCH] RPC: introduce client-side transport switch

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Move the bulk of client-side socket-specific code into a separate source
 file, net/sunrpc/xprtsock.c.

 Test-plan:
 Millions of fsx operations.  Performance characterization such as "sio" or
 "iozone".  Destructive testing (unplugging the network temporarily, server
 reboots).  Connectathon with v2, v3, and v4.

 Version: Thu, 11 Aug 2005 16:03:38 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
2005-08-11 16:25:23 -04:00
committed by Trond Myklebust
parent 094bb20b9f
commit a246b0105b
8 changed files with 1101 additions and 989 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
include/linux/sunrpc/xprt.h
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@@ -59,7 +59,13 @@ extern unsigned int xprt_tcp_slot_table_entries;
*/
#define RPC_REESTABLISH_TIMEOUT (15*HZ)
/* RPC call and reply header size as number of 32bit words (verifier
/*
* RPC transport idle timeout.
*/
#define RPC_IDLE_DISCONNECT_TIMEOUT (5*60*HZ)
/*
* RPC call and reply header size as number of 32bit words (verifier
* size computed separately)
*/
#define RPC_CALLHDRSIZE 6
@@ -121,12 +127,19 @@ struct rpc_rqst {
#define rq_svec rq_snd_buf.head
#define rq_slen rq_snd_buf.len
#define XPRT_LAST_FRAG (1 << 0)
#define XPRT_COPY_RECM (1 << 1)
#define XPRT_COPY_XID (1 << 2)
#define XPRT_COPY_DATA (1 << 3)
struct rpc_task;
struct rpc_xprt;
struct rpc_xprt_ops {
void (*set_buffer_size)(struct rpc_xprt *xprt);
void (*connect)(struct rpc_task *task);
int (*send_request)(struct rpc_task *task);
void (*close)(struct rpc_xprt *xprt);
void (*destroy)(struct rpc_xprt *xprt);
};
struct rpc_xprt {
struct rpc_xprt_ops * ops; /* transport methods */
struct socket * sock; /* BSD socket layer */
struct sock * inet; /* INET layer */
@@ -199,14 +212,22 @@ struct rpc_xprt {
wait_queue_head_t cong_wait;
};
#define XPRT_LAST_FRAG (1 << 0)
#define XPRT_COPY_RECM (1 << 1)
#define XPRT_COPY_XID (1 << 2)
#define XPRT_COPY_DATA (1 << 3)
#ifdef __KERNEL__
struct rpc_xprt * xprt_create_proto(int proto, struct sockaddr_in *addr,
struct rpc_timeout *toparms);
void xprt_disconnect(struct rpc_xprt *);
int xprt_destroy(struct rpc_xprt *);
void xprt_set_timeout(struct rpc_timeout *, unsigned int,
unsigned long);
struct rpc_rqst * xprt_lookup_rqst(struct rpc_xprt *, u32);
void xprt_complete_rqst(struct rpc_xprt *,
struct rpc_rqst *, int);
void xprt_reserve(struct rpc_task *);
int xprt_prepare_transmit(struct rpc_task *);
void xprt_transmit(struct rpc_task *);
@@ -214,7 +235,10 @@ void xprt_receive(struct rpc_task *);
int xprt_adjust_timeout(struct rpc_rqst *req);
void xprt_release(struct rpc_task *);
void xprt_connect(struct rpc_task *);
void xprt_sock_setbufsize(struct rpc_xprt *);
int xs_setup_udp(struct rpc_xprt *,
struct rpc_timeout *);
int xs_setup_tcp(struct rpc_xprt *,
struct rpc_timeout *);
#define XPRT_LOCKED 0
#define XPRT_CONNECT 1