xprtrdma: Chain Send to FastReg WRs

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With FRWR, the client transport can perform memory registration and
post a Send with just a single ib_post_send.

This reduces contention between the send_request path and the Send
Completion handlers, and reduces the overhead of registering a chunk
that has multiple segments.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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Chuck Lever 2018-02-28 15:30:59 -05:00 • committed by Anna Schumaker

parent fb14ae8853

commit f287762308

4 changed files with 49 additions and 18 deletions

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11

net/sunrpc/xprtrdma/fmr_ops.c

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51

net/sunrpc/xprtrdma/frwr_ops.c

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3

net/sunrpc/xprtrdma/verbs.c

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2

net/sunrpc/xprtrdma/xprt_rdma.h

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