安物LANカード

28 ：名無しさん：01/12/15 04:44

ISA のやつは知らないけど、 PCI のは問題多いらしい。
以下、 FreeBSD の src/sys/pci/if_rl.c より引用

> The RealTek 8139 PCI NIC redefines the meaning of 'low end.' This is
> probably the worst PCI ethernet controller ever made, with the possible
> exception of the FEAST chip made by SMC. The 8139 supports bus-master
> DMA, but it has a terrible interface that nullifies any performance
> gains that bus-master DMA usually offers.