Thread (6 messages) flat view 6 messages, 4 authors, 2019-07-12

Re: [PATCH] User mode linux bump maximum MTU tuntap interface [RESAND]

From: Richard Weinberger <hidden>
Date: 2019-07-02 14:40:19
Also in: linux-um

CC'ing um folks.

On Tue, Jul 2, 2019 at 3:01 PM Алексей [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Hello, the parameter  ETH_MAX_PACKET limited to 1500 bytes is the not
support jumbo frames.

This patch change ETH_MAX_PACKET the 65535 bytes to jumbo frame support
with user mode linux tuntap driver.


PATCH:

-------------------


diff -ruNP ../linux_orig/linux-5.1/arch/um/include/shared/net_user.h
./arch/um/include/shared/net_user.h
--- a/arch/um/include/shared/net_user.h    2019-05-06 00:42:58.000000000
+0000
+++ b/arch/um/include/shared/net_user.h    2019-07-02 07:14:13.593333356
+0000
@@ -9,7 +9,7 @@
 #define ETH_ADDR_LEN (6)
 #define ETH_HEADER_ETHERTAP (16)
 #define ETH_HEADER_OTHER (26) /* 14 for ethernet + VLAN + MPLS for
crazy people */
-#define ETH_MAX_PACKET (1500)
+#define ETH_MAX_PACKET (65535)

 #define UML_NET_VERSION (4)

-------------------

-- 
Thanks,
//richard
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