linux-toradex.git/include/linux/sunrpc/xprtrdma.h, branch v4.9.37

xprtrdma: Support larger inline thresholds

2016-09-19T17:08:38+00:00

The Version One default inline threshold is still 1KB. But allow
testing with thresholds up to 64KB.

This maximum is somewhat arbitrary. There's no fundamental
architectural limit I'm aware of, but it's good to keep the size of
Receive buffers reasonable. Now that Send can use a s/g list, a
Send buffer is only as large as each RPC requires. Receive buffers
are always the size of the inline threshold, however.

Signed-off-by: Chuck Lever 
Signed-off-by: Anna Schumaker

xprtrdma: Bound the inline threshold values

2016-05-17T19:47:57+00:00

Currently the sysctls that allow setting the inline threshold allow
any value to be set.

Small values only make the transport run slower. The default 1KB
setting is as low as is reasonable. And the logic that decides how
to divide a Send buffer between RPC-over-RDMA header and RPC message
assumes (but does not check) that the lower bound is not crazy (say,
57 bytes).

Send and receive buffers share a page with some control information.
Values larger than about 3KB can't be supported, currently.

Signed-off-by: Chuck Lever 
Tested-by: Steve Wise 
Signed-off-by: Anna Schumaker

xprtrdma: Clean up unused RPCRDMA_INLINE_PAD_THRESH macro

2016-03-14T18:55:44+00:00

Fixes: b3221d6a53c4 ('xprtrdma: Remove logic that constructs...')
Signed-off-by: Chuck Lever 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Anna Schumaker

xprtrdma: Increase default credit limit

2015-08-05T20:21:26+00:00

In preparation for similar increases on NFS/RDMA servers, bump the
advertised credit limit for RPC/RDMA to 128. This allocates some
extra resources, but the client will continue to allow only the
number of RPCs in flight that the server requests via its advertised
credit limit.

Signed-off-by: Chuck Lever 
Reviewed-By: Sagi Grimberg 
Tested-by: Devesh Sharma 
Signed-off-by: Anna Schumaker

xprtrdma: Remove rpcrdma_ia::ri_memreg_strategy

2015-06-12T17:10:37+00:00

Clean up: This field is no longer used.

Signed-off-by: Chuck Lever 
Reviewed-by: Steve Wise 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Devesh Sharma 
Tested-By: Devesh Sharma 
Reviewed-by: Doug Ledford 
Signed-off-by: Anna Schumaker

SUNRPC: Introduce missing well-known netids

2015-03-31T13:52:52+00:00

Signed-off-by: Chuck Lever 
Signed-off-by: Anna Schumaker

xprtrdma: Remove RPCRDMA_PERSISTENT_REGISTRATION macro

2014-07-31T20:22:59+00:00

Clean up.

RPCRDMA_PERSISTENT_REGISTRATION was a compile-time switch between
RPCRDMA_REGISTER mode and RPCRDMA_ALLPHYSICAL mode.  Since
RPCRDMA_REGISTER has been removed, there's no need for the extra
conditional compilation.

Signed-off-by: Chuck Lever 
Tested-by: Steve Wise 
Tested-by: Shirley Ma 
Tested-by: Devesh Sharma 
Signed-off-by: Anna Schumaker

nfsd41: sunrpc: add new xprt class for nfsv4.1 backchannel

2009-09-13T19:46:15+00:00

[sunrpc: change idle timeout value for the backchannel]
Signed-off-by: Alexandros Batsakis 
Signed-off-by: Benny Halevy 
Acked-by: Trond Myklebust 
Signed-off-by: J. Bruce Fields

RPC/RDMA: harden connection logic against missing/late rdma_cm upcalls.

2008-10-10T19:13:31+00:00

Add defensive timeouts to wait_for_completion() calls in RDMA
address resolution, and make them interruptible. Fix the timeout
units to milliseconds (formerly jiffies) and move to private header.

Signed-off-by: Tom Talpey 
Signed-off-by: Trond Myklebust

RPC/RDMA: add data types and new FRMR memory registration enum.

2008-10-10T19:09:24+00:00

Internal RPC/RDMA structure updates in preparation for FRMR support.

Signed-off-by: Tom Talpey 
Acked-by: Tom Tucker 
Signed-off-by: Trond Myklebust