Return-Path: Received: from mail-qk0-f177.google.com ([209.85.220.177]:33468 "EHLO mail-qk0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753195AbbHCRDD (ORCPT ); Mon, 3 Aug 2015 13:03:03 -0400 Subject: [PATCH v4 03/16] xprtrdma: Increase default credit limit From: Chuck Lever To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Mon, 03 Aug 2015 13:02:59 -0400 Message-ID: <20150803170259.9115.66904.stgit@manet.1015granger.net> In-Reply-To: <20150803165807.9115.23842.stgit@manet.1015granger.net> References: <20150803165807.9115.23842.stgit@manet.1015granger.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: In preparation for similar increases on NFS/RDMA servers, bump the advertised credit limit for RPC/RDMA to 128. This allocates some extra resources, but the client will continue to allow only the number of RPCs in flight that the server requests via its advertised credit limit. Signed-off-by: Chuck Lever Reviewed-By: Sagi Grimberg Tested-by: Devesh Sharma --- include/linux/sunrpc/xprtrdma.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h index b176130..b7b279b 100644 --- a/include/linux/sunrpc/xprtrdma.h +++ b/include/linux/sunrpc/xprtrdma.h @@ -49,7 +49,7 @@ * a single chunk type per message is supported currently. */ #define RPCRDMA_MIN_SLOT_TABLE (2U) -#define RPCRDMA_DEF_SLOT_TABLE (32U) +#define RPCRDMA_DEF_SLOT_TABLE (128U) #define RPCRDMA_MAX_SLOT_TABLE (256U) #define RPCRDMA_DEF_INLINE (1024) /* default inline max */