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From: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH v1 3/8] rpcrdma: Add RPCRDMA_HDRLEN_ERR
Date: Fri, 12 Feb 2016 16:06:18 -0500	[thread overview]
Message-ID: <20160212210618.5278.28591.stgit@manet.1015granger.net> (raw)
In-Reply-To: <20160212205107.5278.55938.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>

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 <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
---
 include/linux/sunrpc/rpc_rdma.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h
index f33c5a4..8c6d23c 100644
--- a/include/linux/sunrpc/rpc_rdma.h
+++ b/include/linux/sunrpc/rpc_rdma.h
@@ -102,6 +102,7 @@ struct rpcrdma_msg {
  * Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks
  */
 #define RPCRDMA_HDRLEN_MIN	(sizeof(__be32) * 7)
+#define RPCRDMA_HDRLEN_ERR	(sizeof(__be32) * 5)
 
 enum rpcrdma_errcode {
 	ERR_VERS = 1,

--
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  parent reply	other threads:[~2016-02-12 21:06 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-12 21:05 [PATCH v1 0/8] NFS/RDMA client patches for v4.6 Chuck Lever
     [not found] ` <20160212205107.5278.55938.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-12 21:06   ` [PATCH v1 1/8] xprtrdma: Segment head and tail XDR buffers on page boundaries Chuck Lever
     [not found]     ` <20160212210602.5278.57457.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:27       ` Devesh Sharma
2016-02-12 21:06   ` [PATCH v1 2/8] xprtrdma: Invalidate memory when a signal is caught Chuck Lever
     [not found]     ` <20160212210610.5278.22489.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:28       ` Devesh Sharma
2016-02-12 21:06   ` Chuck Lever [this message]
     [not found]     ` <20160212210618.5278.28591.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:28       ` [PATCH v1 3/8] rpcrdma: Add RPCRDMA_HDRLEN_ERR Devesh Sharma
2016-02-12 21:06   ` [PATCH v1 4/8] xprtrdma: Properly handle RDMA_ERROR replies Chuck Lever
     [not found]     ` <20160212210627.5278.89517.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:28       ` Devesh Sharma
2016-02-17 21:19       ` Anna Schumaker
     [not found]         ` <56C4E3D6.1040605-ZwjVKphTwtPQT0dZR+AlfA@public.gmane.org>
2016-02-17 21:21           ` Chuck Lever
     [not found]             ` <16F01212-1045-449D-AD9E-C02F75ECE39A-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-02-17 21:24               ` Anna Schumaker
2016-02-12 21:06   ` [PATCH v1 5/8] xprtrdma: Serialize credit accounting again Chuck Lever
     [not found]     ` <20160212210635.5278.72709.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:29       ` Devesh Sharma
     [not found]         ` <CANjDDBgag4c2K0G+c-Mbxri+Bh2CZ6qkb49S-3myNva2J4bu_Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-02-15 15:00           ` Chuck Lever
     [not found]             ` <DF2B8B89-F9CA-4DF9-96BF-6E455E0E1196-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-02-16  5:15               ` Devesh Sharma
2016-02-12 21:06   ` [PATCH v1 6/8] xprtrdma: Use new CQ API for RPC-over-RDMA client receive CQs Chuck Lever
     [not found]     ` <20160212210643.5278.97996.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:29       ` Devesh Sharma
2016-02-12 21:06   ` [PATCH v1 7/8] xprtrdma: Use an anonymous union in struct rpcrdma_mw Chuck Lever
     [not found]     ` <20160212210651.5278.31825.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org>
2016-02-15 14:30       ` Devesh Sharma
2016-02-12 21:07   ` [PATCH v1 8/8] xprtrdma: Use new CQ API for RPC-over-RDMA client send CQs Chuck Lever
2016-02-15 14:31   ` [PATCH v1 0/8] NFS/RDMA client patches for v4.6 Devesh Sharma

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