Marvell 88E8052 PCI-E LAN on FreeBSD 7.0

[Wojciech Puchar]

> I discovered that adding -txcsum and -rxcsum (i.e.
> disabling hardware checksuming) to the ifconfig
> statement, the performance was as quick as it is
> on that other OS!

there is a lot of buggy chips produced today.

normally the should go to thrash, but - what a problem - they put onto 
motherboards so user have no choice. then they include windoze drivers 
that simply disable non-working features and they are happy, not even 
telling anyone about this.

unless you are buying motherboard for servers, DO NOT expect lan to work ;)

it's my common practice.

nvidia ethernet was the worst one (it never worked), but realtek gigabit 
ethernet on other motherboard needed the same as yours (-txcsum, -rxcsum) 
or it randomly drop packets, probably because it calculates checksums 
wrong.