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authorMichael Brown <mcb30@ipxe.org>2014-12-11 17:13:38 +0000
committerMichael Brown <mcb30@ipxe.org>2014-12-18 14:46:38 +0000
commit1d2b7c91f780419c805062ccc474967d80dafe96 (patch)
tree622c179cb8bd25dec8b3fe8ce2f4678829beb815 /src/include/ipxe/netdevice.h
parentc86b22221dd2aa787e2eae49d9d46287b8cf381e (diff)
downloadipxe-1d2b7c91f780419c805062ccc474967d80dafe96.tar.gz
[rndis] Add generic RNDIS device abstraction
RNDIS provides an abstraction of a network device on top of a generic packet transmission mechanism. Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include/ipxe/netdevice.h')
-rw-r--r--src/include/ipxe/netdevice.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/src/include/ipxe/netdevice.h b/src/include/ipxe/netdevice.h
index 95ad1cf1b..f471e2519 100644
--- a/src/include/ipxe/netdevice.h
+++ b/src/include/ipxe/netdevice.h
@@ -36,13 +36,12 @@ struct device;
/** Maximum length of a link-layer header
*
- * The longest currently-supported link-layer header is for 802.11: a
- * 24-byte frame header plus an 8-byte 802.3 LLC/SNAP header, plus a
- * possible 4-byte VLAN header. (The IPoIB link-layer pseudo-header
- * doesn't actually include link-layer addresses; see ipoib.c for
- * details.)
+ * The longest currently-supported link-layer header is for RNDIS: an
+ * 8-byte RNDIS header, a 32-byte RNDIS packet message header, a
+ * 14-byte Ethernet header and a possible 4-byte VLAN header. Round
+ * up to 64 bytes.
*/
-#define MAX_LL_HEADER_LEN 36
+#define MAX_LL_HEADER_LEN 64
/** Maximum length of a network-layer address */
#define MAX_NET_ADDR_LEN 16