Re: [PATCH v2 00/20] NFS/RDMA client for 3.20

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On Jan 16, 2015, at 4:02 PM, Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> wrote:

> Hi Chuck,
> 
> You already answered my one question for this patch series, and I don't have any other comments.  Are these ready for me to take now?  Are you planning a v3?

Yes, one or two minor changes. I’ll post late next week (after MLK day).

> 
> Thanks,
> Anna
> 
> On 01/13/2015 11:24 AM, Chuck Lever wrote:
>> The following series of patches for the Linux NFS client breaks up
>> the per-transport buffer pool data structures to help them scale
>> better with the size of SEND/RECV buffers (the inline threshold),
>> the maximum NFS r/wsize, and the number of RDMA credits (concurrent
>> RPC requests).
>> 
>> The primary change is that the header send buffers have been split
>> from struct rpcrdma_req. Specific benefits are outlined in the patch
>> descriptions.
>> 
>> More pre-requisites are required. Changes to raise the maximum
>> r/wsize and other limits are left for a future merge window.
>> 
>> See the topic branch "nfs-rdma-for-3.20" at:
>> 
>>  git://git.linux-nfs.org/projects/cel/cel-2.6.git
>> 
>> Changes since v1:
>> - Rebased on v3.19-rc4
>> - One short description fixed
>> - linux-rdma included this time (sorry for the noise)
>> 
>> ---
>> 
>> Chuck Lever (20):
>>      xprtrdma: human-readable completion status
>>      xprtrdma: Modernize htonl and ntohl
>>      xprtrdma: Display XIDs in host byte order
>>      xprtrdma: Clean up hdrlen
>>      xprtrdma: Rename "xprt" and "rdma_connect" fields in struct rpcrdma_xprt
>>      xprtrdma: Remove rpcrdma_ep::rep_ia
>>      xprtrdma: Remove rl_mr field, and the mr_chunk union
>>      xprtrdma: Move credit update to RPC reply handler
>>      xprtrdma: Remove rpcrdma_ep::rep_func and ::rep_xprt
>>      xprtrdma: Free the pd if ib_query_qp() fails
>>      xprtrdma: Take struct ib_device_attr off the stack
>>      xprtrdma: Take struct ib_qp_attr and ib_qp_init_attr off the stack
>>      xprtrdma: Simplify synopsis of rpcrdma_buffer_create()
>>      xprtrdma: Refactor rpcrdma_buffer_create() and rpcrdma_buffer_destroy()
>>      xprtrdma: Add struct rpcrdma_regbuf and helpers
>>      xprtrdma: Allocate RPC send buffer separately from struct rpcrdma_req
>>      xprtrdma: Allocate RPC/RDMA send buffer separately from struct rpcrdma_req
>>      xprtrdma: Allocate RPC/RDMA receive buffer separately from struct rpcrdma_rep
>>      xprtrdma: Allocate zero pad separately from rpcrdma_buffer
>>      xprtrdma: Clean up after adding regbuf management
>> 
>> 
>> include/linux/sunrpc/rpc_rdma.h |   14 +
>> include/linux/sunrpc/svc_rdma.h |    2 
>> net/sunrpc/xprtrdma/rpc_rdma.c  |  108 ++++++----
>> net/sunrpc/xprtrdma/transport.c |  179 +++++++----------
>> net/sunrpc/xprtrdma/verbs.c     |  411 ++++++++++++++++++++++++---------------
>> net/sunrpc/xprtrdma/xprt_rdma.h |  111 +++++++----
>> 6 files changed, 478 insertions(+), 347 deletions(-)
>> 
>> --
>> Chuck Lever
>> --
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> 
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--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com



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