From: Tom Herbert <therbert@google.com>
Date: Tue, 4 Nov 2014 17:06:55 +0000 (-0800)
Subject: gue: Protocol constants for remote checksum offload
X-Git-Tag: v3.19-rc1~118^2~274^2~2
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=c1aa8347e73e4092411fbd96cc59531fb7e76d04;p=linux-block.git

gue: Protocol constants for remote checksum offload

Define a private flag for remote checksun offload as well as a length
for the option.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/gue.h b/include/net/gue.h
index cb68ae843c77..3f28ec7f1c7f 100644
--- a/include/net/gue.h
+++ b/include/net/gue.h
@@ -59,7 +59,10 @@ struct guehdr {
 
 /* Private flags in the private option extension */
 
-#define GUE_PFLAGS_ALL	(0)
+#define GUE_PFLAG_REMCSUM	htonl(1 << 31)
+#define GUE_PLEN_REMCSUM	4
+
+#define GUE_PFLAGS_ALL	(GUE_PFLAG_REMCSUM)
 
 /* Functions to compute options length corresponding to flags.
  * If we ever have a lot of flags this can be potentially be