Adding support for processing of MAPv5 downlink packets. It involves parsing the Mapv5 packet and checking the csum header to know whether the hardware has validated the checksum and is valid or not. Based on the checksum valid bit the corresponding stats are incremented and skb->ip_summed is marked either CHECKSUM_UNNECESSARY or left as CHEKSUM_NONE to let network stack revalidate the checksum and update the respective snmp stats. Current MAPV1 header has been modified, the reserved field in the Mapv1 header is now used for next header indication.
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| @@ -1236,6 +1236,7 @@ enum { · 1235 unmodified lines | |||
| 1236 | #define RMNET_FLAGS_INGRESS_MAP_COMMANDS (1U << 1) | 1236 | #define RMNET_FLAGS_INGRESS_MAP_COMMANDS (1U << 1) |
| 1237 | #define RMNET_FLAGS_INGRESS_MAP_CKSUMV4 (1U << 2) | 1237 | #define RMNET_FLAGS_INGRESS_MAP_CKSUMV4 (1U << 2) |
| 1238 | #define RMNET_FLAGS_EGRESS_MAP_CKSUMV4 (1U << 3) | 1238 | #define RMNET_FLAGS_EGRESS_MAP_CKSUMV4 (1U << 3) |
| 1239 | #define RMNET_FLAGS_INGRESS_MAP_CKSUMV5 (1U << 4) | ||
| 1239 | 1240 | ||
| 1240 | enum { | 1241 | enum { |
| 1241 | IFLA_RMNET_UNSPEC, | 1242 | IFLA_RMNET_UNSPEC, |