Thread (19 messages) 19 messages, 10 authors, 2015-02-21

Re: [PATCH 1/1] tun: change speed from 10M to dynamically configured

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From: Sergei Shtylyov <hidden>
Date: 2015-02-13 10:45:12

On 2/13/2015 9:19 AM, Zhu Yanjun wrote:
The default speed of normal nic is 1000M while the default speed
of tun is 10M. Now the default speed of tun is changed to 1000M.
And there are 3 options: 10M, 100M and 1000M to the speed of tun.
The command "ethtool -s tun0 speed 10/100/1000" can configure the
speed of tun dynamically.
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Jason Wang <redacted>
CC: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Sergei Shtylyov <redacted>
Reviewed-by: Jonathon Reinhart <redacted>
Signed-off-by: Zhu Yanjun <redacted>
[...]
quoted hunk ↗ jump to hunk
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 50ae243..78a09a7 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -66,6 +66,11 @@
  #define IFF_PERSIST	0x0800
  #define IFF_NOFILTER	0x1000

+/*add speed control, default 1000M*/
   Please do add spaces after /* and before */.
quoted hunk ↗ jump to hunk
+#define TUN_CTRL_SPD_10         0x0020
+#define TUN_CTRL_SPD_100        0x0040
+#define TUN_CTRL_SPD_1000       0x0080
+
  /* Socket options */
  #define TUN_TX_TIMESTAMP 1
WBR, Sergei
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