Symbol: E1000_PBA_12K
sys/dev/netif/em/if_em.c
2611
pba = E1000_PBA_12K; /* 12K for Rx, 20K for Tx */
sys/dev/netif/emx/if_emx.c
2101
pba = E1000_PBA_12K; /* 12K for Rx, 20K for Tx */