Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933168AbbFIOqK (ORCPT ); Tue, 9 Jun 2015 10:46:10 -0400 Received: from mailuogwhop.emc.com ([168.159.213.141]:49574 "EHLO mailuogwhop.emc.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933019AbbFIOpb (ORCPT ); Tue, 9 Jun 2015 10:45:31 -0400 X-DKIM: OpenDKIM Filter v2.4.3 mailuogwprd03.lss.emc.com t59EjQMa032340 X-DKIM: OpenDKIM Filter v2.4.3 mailuogwprd03.lss.emc.com t59EjQMa032340 From: Allen Hubbe To: linux-ntb@googlegroups.com Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Jon Mason , Dave Jiang Subject: [PATCH v3 18/18] NTB: Increase transport MTU to 64k from 16k Date: Tue, 9 Jun 2015 05:44:45 -0400 Message-Id: X-Mailer: git-send-email 2.4.0.rc0.44.g244209c.dirty In-Reply-To: References: In-Reply-To: References: X-RSA-Classifications: public X-Sentrion-Hostname: mailuogwprd03.lss.emc.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1118 Lines: 31 From: Dave Jiang Benchmarking showed significant performance increase going from MTU size of 64k from 16k. Changing the default. Signed-off-by: Dave Jiang --- drivers/ntb/ntb_transport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index ea237aeca28c..c87bc0cbd607 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -76,7 +76,7 @@ static unsigned long max_mw_size; module_param(max_mw_size, ulong, 0644); MODULE_PARM_DESC(max_mw_size, "Limit size of large memory windows"); -static unsigned int transport_mtu = 0x401E; +static unsigned int transport_mtu = 0x10000; module_param(transport_mtu, uint, 0644); MODULE_PARM_DESC(transport_mtu, "Maximum size of NTB transport packets"); -- 2.4.0.rc0.43.gcf8a8c6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/