FCP-101: obsolete driver removal planned for 2019-05-18

[Warner Losh]

On Sun, May 12, 2019, 12:00 PM Eugene Grosbein <eugen at grosbein.net> wrote:

> 12.05.2019 8:21, Warner Losh wrote:
>
> >     >> I've posted a review to remove obsolete 10 and 10/100 Ethernet
> drivers
> >     >> as previous approved in FCP-101.
> >     >> The following drivers are slated for
> >     >> removal from FreeBSD-HEAD (to be FreeBSD-13):
> >     >> ae, bm, cs, de, ed, ep, ex, fe, pcn, sf, sn, tl, tx, txp, vx, wb,
> xe
> >     > OMG ! ed ! That EOL's loads of PC boxes I have (& a show box of
> >     > spare)  that will never be able to upgrade.
> >     Do those boxes have 10M-only or 100Mbps variants of ed(4)?
> >     What kind of hardware do they have (CPU and memory-wise)?
> >
> > There are no 100M ed variants. There are some PC Card variants that have
> 100M MII connections, but they are limited to about 12Mbps due to bus
> limits. Even the PCI ones didn't have 100M mii connections.
>
> There was RTL8029AS "NE2000-compatible" 100M 32 bit PCI 2.1 adapter.
> Not sure if ed(4) supports RTL8029AS.
>

It does, but there is the same limitations. The card can't do DMA, so it's
limited by inb/outb limitations. It also only has a 10Mbps transceiver
built in. If people sold 100M attachments, it still won't do much more than
10Mbps.

Warner

>