diff options
Diffstat (limited to 'include/linux/if_rmnet.h')
| -rw-r--r-- | include/linux/if_rmnet.h | 65 |
1 files changed, 29 insertions, 36 deletions
diff --git a/include/linux/if_rmnet.h b/include/linux/if_rmnet.h index 9661416a9bb4..4efb537f57f3 100644 --- a/include/linux/if_rmnet.h +++ b/include/linux/if_rmnet.h @@ -6,50 +6,43 @@ #define _LINUX_IF_RMNET_H_ struct rmnet_map_header { -#if defined(__LITTLE_ENDIAN_BITFIELD) - u8 pad_len:6; - u8 reserved_bit:1; - u8 cd_bit:1; -#elif defined (__BIG_ENDIAN_BITFIELD) - u8 cd_bit:1; - u8 reserved_bit:1; - u8 pad_len:6; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 mux_id; - __be16 pkt_len; + u8 flags; /* MAP_CMD_FLAG, MAP_PAD_LEN_MASK */ + u8 mux_id; + __be16 pkt_len; /* Length of packet, including pad */ } __aligned(1); +/* rmnet_map_header flags field: + * PAD_LEN: number of pad bytes following packet data + * CMD: 1 = packet contains a MAP command; 0 = packet contains data + */ +#define MAP_PAD_LEN_MASK GENMASK(5, 0) +#define MAP_CMD_FLAG BIT(7) + struct rmnet_map_dl_csum_trailer { - u8 reserved1; -#if defined(__LITTLE_ENDIAN_BITFIELD) - u8 valid:1; - u8 reserved2:7; -#elif defined (__BIG_ENDIAN_BITFIELD) - u8 reserved2:7; - u8 valid:1; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u16 csum_start_offset; - u16 csum_length; + u8 reserved1; + u8 flags; /* MAP_CSUM_DL_VALID_FLAG */ + __be16 csum_start_offset; + __be16 csum_length; __be16 csum_value; } __aligned(1); +/* rmnet_map_dl_csum_trailer flags field: + * VALID: 1 = checksum and length valid; 0 = ignore them + */ +#define MAP_CSUM_DL_VALID_FLAG BIT(0) + struct rmnet_map_ul_csum_header { __be16 csum_start_offset; -#if defined(__LITTLE_ENDIAN_BITFIELD) - u16 csum_insert_offset:14; - u16 udp_ind:1; - u16 csum_enabled:1; -#elif defined (__BIG_ENDIAN_BITFIELD) - u16 csum_enabled:1; - u16 udp_ind:1; - u16 csum_insert_offset:14; -#else -#error "Please fix <asm/byteorder.h>" -#endif + __be16 csum_info; /* MAP_CSUM_UL_* */ } __aligned(1); +/* csum_info field: + * OFFSET: where (offset in bytes) to insert computed checksum + * UDP: 1 = UDP checksum (zero checkum means no checksum) + * ENABLED: 1 = checksum computation requested + */ +#define MAP_CSUM_UL_OFFSET_MASK GENMASK(13, 0) +#define MAP_CSUM_UL_UDP_FLAG BIT(14) +#define MAP_CSUM_UL_ENABLED_FLAG BIT(15) + #endif /* !(_LINUX_IF_RMNET_H_) */ |