kernel/linux.git/include/linux/sunrpc/xprt.h, branch linux-2.6.18.y

SUNRPC: avoid choosing an IPMI port for RPC traffic

2006-08-24T19:51:32+00:00

Some hardware uses port 664 for its hardware-based IPMI listener. Teach the RPC client to avoid using that port by raising the default minimum port number to 665. Test plan: Find a mainboard known to use port 664 for IPMI; enable IPMI; mount NFS servers in a tight loop. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust (cherry picked from 58e8cb3a035d22fc386e1c53a5d98c3f219530fb commit)

RPC: Ensure that we disconnect TCP socket when client requests error out

2006-08-03T20:56:55+00:00

If we're part way through transmitting a TCP request, and the client errors, then we need to disconnect and reconnect the TCP socket in order to avoid confusing the server. Signed-off-by: Trond Myklebust (cherry picked from 031a50c8b9ea82616abd4a4e18021a25848941ce commit)

NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unset

2006-04-19T16:43:47+00:00

Signed-off-by: Trond Myklebust

SUNRPC: add a handful of per-xprt counters

2006-03-20T18:44:16+00:00

Monitor generic transport events. Add a transport switch callout to format transport counters for export to user-land. Test plan: Compile kernel with CONFIG_NFS enabled. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: Ensure client closes the socket when server initiates a close

2006-01-06T19:58:57+00:00

If the server decides to close the RPC socket, we currently don't actually respond until either another RPC call is scheduled, or until xprt_autoclose() gets called by the socket expiry timer (which may be up to 5 minutes later). This patch ensures that xprt_autoclose() is called much sooner if the server closes the socket. Signed-off-by: Trond Myklebust

SUNRPC: transport switch API for setting port number

2006-01-06T19:58:56+00:00

At some point, transport endpoint addresses will no longer be IPv4. To hide the structure of the rpc_xprt's address field from ULPs and port mappers, add an API for setting the port number during an RPC bind operation. Test-plan: Destructive testing (unplugging the network temporarily). Connectathon with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked. Probably need to rig a server where certain services aren't running, or that returns an error for some typical operation. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: switchable buffer allocation

2006-01-06T19:58:55+00:00

Add RPC client transport switch support for replacing buffer management on a per-transport basis. In the current IPv4 socket transport implementation, RPC buffers are allocated as needed for each RPC message that is sent. Some transport implementations may choose to use pre-allocated buffers for encoding, sending, receiving, and unmarshalling RPC messages, however. For transports capable of direct data placement, the buffers can be carved out of a pre-registered area of memory rather than from a slab cache. Test-plan: Millions of fsx operations. Performance characterization with "sio" and "iozone". Use oprofile and other tools to look for significant regression in CPU utilization. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: Provide a callback to allow free pages allocated during xdr encoding

2005-10-19T06:19:43+00:00

For privacy, we need to allocate pages to store the encrypted data (passed in pages can't be used without the risk of corrupting data in the page cache). So we need a way to free that memory after the request has been transmitted. Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust

RPC: allow call_encode() to delay transmission of an RPC call.

2005-10-18T21:20:11+00:00

Currently, call_encode will cause the entire RPC call to abort if it returns an error. This is unnecessarily rigid, and gets in the way of attempts to allow the NFSv4 layer to order RPC calls that carry sequence ids. Signed-off-by: Trond Myklebust

[PATCH] RPC: rationalize set_buffer_size

2005-09-23T16:38:55+00:00

In fact, ->set_buffer_size should be completely functionless for non-UDP. Test-plan: Check socket buffer size on UDP sockets over time. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust