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Message-Id: <b1facc7cc0e9f2a2a3e2c33ca694b75a5343c798.1433925092.git.Allen.Hubbe@emc.com>
Date: Wed, 10 Jun 2015 05:08:24 -0400
From: Allen Hubbe <Allen.Hubbe@....com>
To: linux-ntb@...glegroups.com
Cc: linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
Jon Mason <jdmason@...zu.us>,
Dave Jiang <dave.jiang@...el.com>,
Allen Hubbe <Allen.Hubbe@....com>
Subject: [PATCH v4 19/19] NTB: Increase transport MTU to 64k from 16k
From: Dave Jiang <dave.jiang@...el.com>
Benchmarking showed a significant performance increase with the MTU size
to 64k instead of 16k. Change the driver default to 64k.
Signed-off-by: Dave Jiang <dave.jiang@...el.com>
---
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 e07b056af3be..1551493197b4 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
--
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