txhdr.h

Go to the documentation of this file.

#ifndef NDNDPDK_ETHFACE_TXHDR_H
#define NDNDPDK_ETHFACE_TXHDR_H
 
#include "locator.h"
 
typedef enum EthTxHdrAct {
  EthTxHdrActNoHdr = 1,
  EthTxHdrActEther,
 
  EthTxHdrActUdp4Checksum = 0b1010,
  EthTxHdrActUdp4Offload = 0b1011,
  EthTxHdrActUdp6Checksum = 0b1000,
  EthTxHdrActUdp6Offload = 0b1001,
} __rte_packed EthTxHdrAct;
 
typedef enum EthTxHdrFlags {
  EthTxHdrFlagsNewBurst = RTE_BIT32(0),
  EthTxHdrFlagsGtpip = RTE_BIT32(1),
} __rte_packed EthTxHdrFlags;
 
typedef struct EthTxHdr EthTxHdr;
typedef void (*EthTxHdr_PrependFunc)(const EthTxHdr* hdr, struct rte_mbuf* m, EthTxHdrFlags flags);
extern const EthTxHdr_PrependFunc EthTxHdr_PrependJmp[];
 
struct EthTxHdr {
  EthTxHdrAct act;
  uint8_t len;
  uint8_t l2len;
  char tunnel;
  uint8_t buf[EthLocator_MaxHdrLen];
};
 
__attribute__((nonnull)) void
EthTxHdr_Prepare(EthTxHdr* hdr, const EthLocator* loc, bool hasChecksumOffloads);
 
__attribute__((nonnull)) static inline void
EthTxHdr_Prepend(const EthTxHdr* hdr, struct rte_mbuf* m, EthTxHdrFlags flags) {
  EthTxHdr_PrependJmp[hdr->act](hdr, m, flags);
}
 
#endif // NDNDPDK_ETHFACE_TXHDR_H