From: Chris Leech <christopher.leech@intel.com>
Date: Thu, 8 Mar 2007 17:57:35 +0000 (-0800)
Subject: I/OAT: Add documentation for the tcp_dma_copybreak sysctl
X-Git-Tag: v2.6.23-rc1~1077^2~23
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=72d0b7a81d60f5e64ee7197bc190b9b3265f99dd;p=linux-2.6-block.git

I/OAT: Add documentation for the tcp_dma_copybreak sysctl

Signed-off-by: Chris Leech <christopher.leech@intel.com>
---

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index af6a63ab9026..8f6067ea5e3e 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -433,6 +433,12 @@ tcp_workaround_signed_windows - BOOLEAN
 	not receive a window scaling option from them.
 	Default: 0
 
+tcp_dma_copybreak - INTEGER
+	Lower limit, in bytes, of the size of socket reads that will be
+	offloaded to a DMA copy engine, if one is present in the system
+	and CONFIG_NET_DMA is enabled.
+	Default: 4096
+
 CIPSOv4 Variables:
 
 cipso_cache_enable - BOOLEAN