talos-obmc-linux/include/linux/sunrpc/rpc_rdma.h, branch v5.0

xprtrdma: Add proper SPDX tags for NetApp-contributed source

2018-05-07T13:20:03+00:00

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

xprtrdma: Update copyright notices

2017-11-17T21:43:43+00:00

Credit work contributed by Oracle engineers since 2014. Signed-off-by: Chuck Lever Signed-off-by: Anna Schumaker

rpcrdma: Remove C structure definitions of XDR data items

2017-11-17T21:43:42+00:00

Clean up: C-structure style XDR encoding and decoding logic has been replaced over the past several merge windows on both the client and server. These data structures are no longer used. Signed-off-by: Chuck Lever Reviewed-by: Devesh Sharma Signed-off-by: Anna Schumaker

svcrdma: Clean up RDMA_ERROR path

2017-04-25T21:25:55+00:00

Now that svc_rdma_sendto has been renovated, svc_rdma_send_error can be refactored to reduce code duplication and remove C structure- based XDR encoding. It is also relocated to the source file that contains its only caller. This is a refactoring change only. Signed-off-by: Chuck Lever Reviewed-by: Sagi Grimberg Signed-off-by: J. Bruce Fields

svcrdma: Another sendto chunk list parsing update

2017-02-08T19:41:24+00:00

Commit 5fdca6531434 ("svcrdma: Renovate sendto chunk list parsing") missed a spot. svc_rdma_xdr_get_reply_hdr_len() also assumes the Write list has only one Write chunk. There's no harm in making this code more general. Signed-off-by: Chuck Lever Reviewed-by: Christoph Hellwig Signed-off-by: J. Bruce Fields

xprtrdma: Client-side support for rpcrdma_connect_private

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

Send an RDMA-CM private message on connect, and look for one during a connection-established event. Both sides can communicate their various implementation limits. Implementations that don't support this sideband protocol ignore it. Once the client knows the server's inline threshold maxima, it can adjust the use of Reply chunks, and eliminate most use of Position Zero Read chunks. Moderately-sized I/O can be done using a pure inline RDMA Send instead of RDMA operations that require memory registration. Signed-off-by: Chuck Lever Signed-off-by: Anna Schumaker

rpcrdma: RDMA/CM private message data structure

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

Introduce data structure used by both client and server to exchange implementation details during RDMA/CM connection establishment. This is an experimental out-of-band exchange between Linux RPC-over-RDMA Version One implementations, replacing the deprecated CCP (see RFC 5666bis). The purpose of this extension is to enable prototyping of features that might be introduced in a subsequent version of RPC-over-RDMA. Suggested by Christoph Hellwig and Devesh Sharma. Signed-off-by: Chuck Lever Reviewed-by: Sagi Grimberg Signed-off-by: Anna Schumaker

xprtrdma: Properly handle RDMA_ERROR replies

2016-03-14T18:55:59+00:00

These are shorter than RPCRDMA_HDRLEN_MIN, and they need to complete the waiting RPC. Signed-off-by: Chuck Lever Reviewed-by: Sagi Grimberg Signed-off-by: Anna Schumaker

rpcrdma: Add RPCRDMA_HDRLEN_ERR

2016-03-14T18:55:57+00:00

Error headers are shorter than either RDMA_MSG or RDMA_NOMSG. Since HDRLEN_MIN is already used in several other places that would be annoying to change, add RPCRDMA_HDRLEN_ERR for the one or two spots where the shorter length is needed. Signed-off-by: Chuck Lever Reviewed-by: Devesh Sharma Reviewed-by: Sagi Grimberg Signed-off-by: Anna Schumaker

xprtrdma: Clean up hdrlen

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

Clean up: Replace naked integers with a documenting macro. Signed-off-by: Chuck Lever Reviewed-by: Steve Wise Signed-off-by: Anna Schumaker