_insert
extern int _insert(pid_t pid, int fd);
(void) _insert(pid, fromcmd[0]);
extern int _insert(pid_t pid, int fd);
(void) _insert(pid, tocmd[1]);
#define EFX_RX_LFSR_HASH(_enp, _insert) \
(_insert) ? 1 : 0); \
#define EFX_RX_TOEPLITZ_IPV4_HASH(_enp, _insert, _ip, _tcp) \
(_insert) ? 1 : 0); \