Use structure similar to TSEC (if_tsec) driver.
The use of bus_dmamap_sync() differs these network interface drivers.
This should not be the case.
Update #3090.
This avoids the move of entire receive frames to meet the alignment
requirements of the IP header and so on.
Add FECFLAG_RACC feature flag for this similar to the Linux driver.
Update #3090.
This flag is analogous to the Linux driver FEC_QUIRK_HAS_AVB. It
indicates an FEC with support for Audio Video Bridging (AVB). This
indicator is used for various other parts in the Linux driver
(drivers/net/ethernet/freescale/fec_main.c).
Use it to customize the receive/transmit buffer alignment. The receive
buffer alignment increased to 64-bytes on the i.MX 6SoloX and i.MX
7Dual. There are no hard alignment restrictions for transmit buffers on
these chips.
Fix the ffec_softc::fectype type to provide enough storage for the
feature flags.
