BMC/Intel-BMC/linux.git/include/linux/sunrpc/svc_rdma.h, branch dev

svcrdma: Add a separate "max data segs macro for svcrdma

2015-06-04T20:56:01+00:00

The server and client maximum are architecturally independent. Allow changing one without affecting the other. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields

svcrdma: Replace GFP_KERNEL in a loop with GFP_NOFAIL

2015-06-04T20:56:00+00:00

At the 2015 LSF/MM, it was requested that memory allocation call sites that request GFP_KERNEL allocations in a loop should be annotated with __GFP_NOFAIL. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields

svcrdma: Keep rpcrdma_msg fields in network byte-order

2015-06-04T20:55:59+00:00

Fields in struct rpcrdma_msg are __be32. Don't byte-swap these fields when decoding RPC calls and then swap them back for the reply. For the most part, they can be left alone. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields

svcrdma: Remove svc_rdma_xdr_decode_deferred_req()

2015-06-03T19:15:23+00:00

svc_rdma_xdr_decode_deferred_req() indexes an array with an un-byte-swapped value off the wire. Fortunately this function isn't used anywhere, so simply remove it. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields

Merge branch 'for-3.20' of git://linux-nfs.org/~bfields/linux

2015-02-12T18:39:41+00:00

Pull nfsd updates from Bruce Fields: "The main change is the pNFS block server support from Christoph, which allows an NFS client connected to shared disk to do block IO to the shared disk in place of NFS reads and writes. This also requires xfs patches, which should arrive soon through the xfs tree, barring unexpected problems. Support for other filesystems is also possible if there's interest. Thanks also to Chuck Lever for continuing work to get NFS/RDMA into shape" * 'for-3.20' of git://linux-nfs.org/~bfields/linux: (32 commits) nfsd: default NFSv4.2 to on nfsd: pNFS block layout driver exportfs: add methods for block layout exports nfsd: add trace events nfsd: update documentation for pNFS support nfsd: implement pNFS layout recalls nfsd: implement pNFS operations nfsd: make find_any_file available outside nfs4state.c nfsd: make find/get/put file available outside nfs4state.c nfsd: make lookup/alloc/unhash_stid available outside nfs4state.c nfsd: add fh_fsid_match helper nfsd: move nfsd_fh_match to nfsfh.h fs: add FL_LAYOUT lease type fs: track fl_owner for leases nfs: add LAYOUT_TYPE_MAX enum value nfsd: factor out a helper to decode nfstime4 values sunrpc/lockd: fix references to the BKL nfsd: fix year-2038 nfs4 state problem svcrdma: Handle additional inline content svcrdma: Move read list XDR round-up logic ...

xprtrdma: Modernize htonl and ntohl

2015-01-30T15:47:48+00:00

Clean up: Replace htonl and ntohl with the be32 equivalents. Signed-off-by: Chuck Lever Reviewed-by: Steve Wise Signed-off-by: Anna Schumaker

svcrdma: Support RDMA_NOMSG requests

2015-01-15T20:01:47+00:00

Currently the Linux server can not decode RDMA_NOMSG type requests. Operations whose length exceeds the fixed size of RDMA SEND buffers, like large NFSv4 CREATE(NF4LNK) operations, must be conveyed via RDMA_NOMSG. For an RDMA_MSG type request, the client sends the RPC/RDMA, RPC headers, and some or all of the NFS arguments via RDMA SEND. For an RDMA_NOMSG type request, the client sends just the RPC/RDMA header via RDMA SEND. The request's read list contains elements for the entire RPC message, including the RPC header. NFSD expects the RPC/RMDA header and RPC header to be contiguous in page zero of the XDR buffer. Add logic in the RDMA READ path to make the read list contents land where the server prefers, when the incoming message is a type RDMA_NOMSG message. Signed-off-by: Chuck Lever Reviewed-by: Steve Wise Signed-off-by: J. Bruce Fields

svcrdma: Plant reader function in struct svcxprt_rdma

2015-01-15T20:01:46+00:00

The RDMA reader function doesn't change once an svcxprt_rdma is instantiated. Instead of checking sc_devcap during every incoming RPC, set the reader function once when the connection is accepted. Signed-off-by: Chuck Lever Reviewed-by: Steve Wise Signed-off-by: J. Bruce Fields

svcrdma: Clean up read chunk counting

2015-01-15T20:01:44+00:00

The byte_count argument is not used, and the function is called only from one place. Signed-off-by: Chuck Lever Reviewed-by: Steve Wise Signed-off-by: J. Bruce Fields

svcrdma: Double the default credit limit

2014-07-23T18:20:48+00:00

The RDMA credit limit controls how many concurrent RPCs are allowed per connection. An NFS/RDMA client and server exchange their credit limits in the RPC/RDMA headers. The Linux client and the Solaris client and server allow 32 credits. The Linux server allows only 16, which limits its performance. Set the server's default credit limit to 32, like the other well- known implementations, so the out-of-the-shrinkwrap performance of the Linux server is better. Signed-off-by: Chuck Lever Signed-off-by: J. Bruce Fields