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linux/if_ether.h: Add VLAN related macros

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There are VLAN related macros defined in include/linux/if_vlan.h
in Linux kernel, as well as some kernel useful structures and inline
functions. Instead of a complete import from kernel, let's add these
VLAN macros to U-Boot's include/linux/if_ether.h.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Bin Meng 2018-07-31 02:55:23 -07:00 committed by Joe Hershberger
parent dda5251037
commit 883b5302fc
1 changed files with 20 additions and 0 deletions
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20
include/linux/if_ether.h
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@ -155,4 +155,24 @@
#define ETH_P_MAP 0x00F9 /* Qualcomm multiplexing and */
/* aggregation protocol */
/* The following macros come from Linux kernel include/linux/if_vlan.h */
#define VLAN_HLEN 4 /* The additional bytes required by VLAN */
/* (in addition to the Ethernet header) */
#define VLAN_ETH_HLEN 18 /* Total octets in header. */
#define VLAN_ETH_ZLEN 64 /* Min. octets in frame sans FCS */
/*
* According to 802.3ac, the packet can be 4 bytes longer. --Klika Jan
*/
#define VLAN_ETH_DATA_LEN 1500 /* Max. octets in payload */
#define VLAN_ETH_FRAME_LEN 1518 /* Max. octets in frame sans FCS */
#define VLAN_PRIO_MASK 0xe000 /* Priority Code Point */
#define VLAN_PRIO_SHIFT 13
#define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */
#define VLAN_TAG_PRESENT VLAN_CFI_MASK
#define VLAN_VID_MASK 0x0fff /* VLAN Identifier */
#define VLAN_N_VID 4096
#endif /* _UAPI_LINUX_IF_ETHER_H */