FBNIC_RX_HROOM
FIELD_PREP(FBNIC_QUEUE_RDE_CTL0_MIN_HROOM_MASK, FBNIC_RX_HROOM) |
if (ALIGN(FBNIC_RX_HROOM, 128) > FBNIC_RX_HROOM &&
pg_off == ALIGN(FBNIC_RX_HROOM, 128))
return pg_off - FBNIC_RX_HROOM;
pg_off += len + FBNIC_RX_TROOM + FBNIC_RX_HROOM;
return ALIGN(pg_off, 128) - FBNIC_RX_HROOM;
(4096 - FBNIC_RX_HROOM - FBNIC_RX_TROOM - FBNIC_RX_PAD)