Commit Graph

54 Commits

Author SHA1 Message Date
wpaul
82c0303935 Make a few other cleanups while I'm in the area. Typo in comment, unused
structure members, etc. No functional changes.
1999-07-14 21:53:11 +00:00
wpaul
cad9268983 Revert some changes I had made to try and cut down on the number of TX EOF
interrupts that were scheduled. Testing shows it didn't really do very much
and it makes the code a little more complicated (which is never a good thing).

Also fix the rambuffer offset initialization for the 512K/64K SRAM case
(512K total using 64K chips). It should be 0. The only case with a
non-standard rambuffer offset address is 1024K/64K according to the
SysKonnect manual. (My card has the 1024/64 configuration and I don't know
which card uses the 512/64 configuration, if any, so I'm not sure that
this was really a problem for anyone.)
1999-07-14 18:57:32 +00:00
wpaul
adecb1d455 if_sk.c: use pci_port_t instead of u_short
if_skreg.h: use alpha_XXX_dmamap() instead of pmap_kextract hackery on
alpha platform
1999-07-09 17:36:23 +00:00
wpaul
faf9139e23 This commit adds driver support for the SysKonnect SK-984x series
gigabit ethernet adapters. This includes two single port cards
(single mode and multimode fiber) and two dual port cards (also single
mode and multimode fiber). SysKonnect is currently the only
vendor with a dual port gigabit ethernet NIC.

The ports on dual port adapters are treated as separate network
interfaces. Thus, if you have an SK-9844 dual port SX card, you
should have both sk0 and sk1 interfaces attached. Dual port cards
are implemented using two XMAC II chips connected to a single
SysKonnect GEnesis controller. Hence, dual port cards are really
one PCI device, as opposed to two separate PCI devices connected
through a PCI to PCI bridge. Note that SysKonnect's drivers use
the two ports for failover purposes rather that as two separate
interfaces, plus they don't support jumbo frames. This applies to
their Linux driver too. :)

Support is provided for hardware multicast filtering, BPF and
jumbo frames. The SysKonnect cards support TCP checksum offload
however this feature is not currently enabled (hopefully it will
be once we get checksum offload support).

There are still a few things that need to be implemeted, like
the ability to communicate with the on-board LM80 voltage/temperature
monitor, but I wanted to get the driver under CVS control and into
-current so people could bang on it.

A big thanks for SysKonnect for making all their programming info
for these cards (and for their FDDI and token ring cards) available
without NDA (see www.syskonnect.com).
1999-07-09 04:30:09 +00:00