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Diffstat (limited to 'include/linux/if_rmnet.h')
-rw-r--r--include/linux/if_rmnet.h65
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_) */