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From: Chuck Lever <>
Subject: [PATCH v3 0/2] Fix write pad
Date: Tue, 05 Oct 2021 10:17:53 -0400	[thread overview]
Message-ID: <> (raw)

Hi Anna-

Can you include this series in your next pull request to Trond?


This series addresses your concern about xprtrdma using the 
rq_rcv_buf.tail vector in some cases to receive an XDR pad. It has
been tested with a legacy Solaris server, in addition to the usual
tests I run.

We haven't yet confirmed whether this addresses the GPU-Direct
issue, but since that is an out-of-tree user that depends on 
unsupported kernel facilities, I regard that confirmation as only
"nice to have", not mandatory. We are confident this change will
address that situation, based on our understanding of the issue.

Changes since v2:
- Address more review comments from Tom Talpey


Chuck Lever (2):
      xprtrdma: Provide a buffer to pad Write chunks of unaligned length
      xprtrdma: Remove rpcrdma_ep::re_implicit_roundup

 include/trace/events/rpcrdma.h  | 13 +++++++++---
 net/sunrpc/xprtrdma/frwr_ops.c  | 35 +++++++++++++++++++++++++++++++++
 net/sunrpc/xprtrdma/rpc_rdma.c  | 23 +++++++++++++---------
 net/sunrpc/xprtrdma/verbs.c     |  3 +--
 net/sunrpc/xprtrdma/xprt_rdma.h |  6 +++++-
 5 files changed, 65 insertions(+), 15 deletions(-)

Chuck Lever

             reply	other threads:[~2021-10-05 14:17 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-05 14:17 Chuck Lever [this message]
2021-10-05 14:17 ` [PATCH v3 1/2] xprtrdma: Provide a buffer to pad Write chunks of unaligned length Chuck Lever
2021-10-05 14:18 ` [PATCH v3 2/2] xprtrdma: Remove rpcrdma_ep::re_implicit_roundup Chuck Lever

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