lkml.org 
[lkml]   [2021]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH 7/7] tun: report new tun feature IFF_HASH
Date
IFF_HASH feature indicates that the tun supports
TUNSETHASHPOPULATION ioctl and can propagate the hash
data to the virtio-net packet.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
---
drivers/net/tun.c | 2 +-
include/uapi/linux/if_tun.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 214feb0b16fb..b46aa8941a9d 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -88,7 +88,7 @@ static void tun_default_link_ksettings(struct net_device *dev,
#define TUN_VNET_LE 0x80000000
#define TUN_VNET_BE 0x40000000

-#define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | \
+#define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | IFF_HASH |\
IFF_MULTI_QUEUE | IFF_NAPI | IFF_NAPI_FRAGS)

#define GOODCOPY_LEN 128
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 0fd43533da26..116b84ede3a0 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -73,6 +73,7 @@
#define IFF_ONE_QUEUE 0x2000
#define IFF_VNET_HDR 0x4000
#define IFF_TUN_EXCL 0x8000
+#define IFF_HASH 0x0080
#define IFF_MULTI_QUEUE 0x0100
#define IFF_ATTACH_QUEUE 0x0200
#define IFF_DETACH_QUEUE 0x0400
--
2.17.1
\
 
 \ /
  Last update: 2021-01-12 20:46    [W:0.141 / U:0.804 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site