Symbol: E1000_PBA_20K
sys/dev/netif/em/if_em.c
2616
pba = E1000_PBA_20K; /* 20K for Rx, 20K for Tx */
sys/dev/netif/emx/if_emx.c
2105
pba = E1000_PBA_20K; /* 20K for Rx, 20K for Tx */