xsksetup.h

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#ifndef XSKSETUP_XSKSETUP_H
#define XSKSETUP_XSKSETUP_H
 
#include "common/platform/sys/syscall.h"
#include "transport/io/xdp/xskring/xskring.h"


#define XSKSETUP_UMEM_FRAMES 1024u
#define XSKSETUP_FRAME_SIZE 2048u
#define XSKSETUP_UMEM_LEN ((u64)XSKSETUP_UMEM_FRAMES * XSKSETUP_FRAME_SIZE)

#define XSKSETUP_RX_POOL_FRAMES 256u

#define XSKSETUP_RING_ENTRIES 64u

typedef struct {
  u32 ifindex;
  u32 queue_id;
  u16 bind_flags;
} xsk_cfg;

typedef struct {
  i64 fd;
  u8* umem;
  usz umem_len;

  xskring rx;
  xskring tx;
  xskring fill;
  xskring comp;

  void* map_rx;
  usz map_rx_len;
  void* map_tx;
  usz map_tx_len;
  void* map_fill;
  usz map_fill_len;
  void* map_comp;
  usz map_comp_len;
} xsk;

i64 xsksetup_open(xsk* x, const xsk_cfg* cfg);

void xsksetup_close(xsk* x);

i64 xsksetup_kick_tx(i64 fd);

i64 xsksetup_stats(i64 fd, u64 out[6]);
 
#endif