Commit Graph

3 Commits

Author SHA1 Message Date
thorpej e8823cc3f3 Cleanup of the EPIC/100 driver I did while hacking on the Rhine driver:
* Macroize hardware and software descriptor access (much easier to read).
* Simplify and optimize the transmit loop a bit, and use IFF_OACTIVE as
  appropriate.
* Fix a potential race condition in the transmit loop.  This change has
  made the driver significantly more stable (almost completely eliminated
  the "device timeout" errors that have plagued this driver).
* Implement transmit interrupt pacing.
* Add missing bus_dmamap_sync() calls (on transmit and receive descriptors
  and fraglists).  (Draining the write buffer when accessing these structures
  may have also contributed to the increased stability of this driver on
  the Alpha.)
1999-02-12 05:55:27 +00:00
thorpej 7b8168e675 Adapt to new MII code. 1998-08-11 00:12:52 +00:00
thorpej 5852faaf84 Device driver for the SMC 83c170 Ethernet PCI Integrated Controller (EPIC/100)
used in the SMC EtherPower II.

Media control isn't yet supported, due to some MII infrastructure
problems which I hope to address soon.  This isn't a huge deal, since
the PHY defaults to auto-negotiate mode.

Also, the device just programs the multicast hash table to accept all
multicast, to avoid a hardware bug that causes the multicast address
filter to lose in 10Mb/s mode.  This bug will be fixed in a more sane
way once the media control issues are dealt with.
1998-06-02 01:29:41 +00:00