diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2018-07-31 02:55:23 -0700 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2018-10-10 12:28:53 -0500 |
| commit | 883b5302fc71c97a838e7d4d5d45e85492f582ec (patch) | |
| tree | d5c85f84c975ae35903dc0227e343a013ddfd958 /include | |
| parent | dda5251037008b3563ab0aaf443eb7be3213887c (diff) | |
linux/if_ether.h: Add VLAN related macros
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/if_ether.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index af1bb66df0e..0d62aefa0dc 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -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 */ |