Commit Graph

12 Commits

Author SHA1 Message Date
wpaul
688f4a7de6 Add the vendor/device ID for the Farallon PN9000SX gigabit ethernet
card, which is apparently also a Tigon 2 device.
2000-01-18 00:26:29 +00:00
wpaul
b76ff977ec Update the Tigon driver firmware images to the latest release from
Alteon (12.6.15).
1999-09-22 06:43:16 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
wpaul
59d886ea36 On FreeBSD/i386, when you use the SYS_RES_MEMORY resource to allocate
a PCI memory mapped region, rman_get_bushandle() returns what happens
to be a kernel virtual address pointing to the base of the PCI shared
memory window. However this is not the behavior on all platforms:
the only thing you should do with the bushandle is pass it to the
bus_spare_read()/bus_space_write() routines. If you actually do want
the kernel virtual address of the base of the PCI memory window, you
need to use rman_get_virtual().

The problem is that at the moment, rman_get_virtual() returns a physical
address, which is bad. In order to get the kernel virtual address we
need, we have to play with it a little.

Presumeably this behavior will be changed, but in the meantime the
Tigon driver won't work. So for the moment, I'm adding a kludge to
make things happy on the alpha: the correct kernel virtual address
is calculated from the value returned by rman_get_virtual(). This
should be removed once rman_get_virtual() starts doing the right
thing.

This should make the Tigon actuall work on the alpha now.
1999-07-27 03:54:48 +00:00
wpaul
e4620300d6 Clean up the buffer allocation code a bit. Make sure to initialize certain
critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to
enforce payload alignment, and turn it on on the x86 as well as alpha
since it helps with NFS which wants the payload to be longword aligned
even though the hardware doesn't require it.

This fixes a problem with the ti driver causing an unaligned access trap
on the Alpha due to m_adj() sometimes not setting the alignment correctly
because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
wpaul
189697389c Dangit. Somehow the pmap_kextract hack for alpha snuck back into these
files. Change them back to alpha_XXX_dmamap().

Pointed out by: Andrew Gallatin
1999-07-23 02:18:01 +00:00
wpaul
bc1ae7010e Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade
to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
wpaul
7dc88e7322 Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers
in ti_rxeof() instead. This doesn't really seem to provide much in the
way of a performance boost, and I'm pretty sure it can cause mbuf leakage
in some extreme cases.
1999-07-05 20:19:41 +00:00
wpaul
2f586076cd Add a transmit descriptor usage counter and use it to absolutely,
positively not let ti_encap() fill up the TX ring all the way and wrap
around. This fixes a potential transmit lockup where a really fast
machine (or particular TX traffic pattern) can overrun the end of the
ring.

Reported by: John Plevyak <jplevyak@inktomi.com>
1999-06-19 00:36:56 +00:00
gallatin
b5afe950d0 Allow chipset drivers to specify the direct-mapped DMA window's mask in
preparation for tsunami support.  Previous chipsets' direct-mapped DMA
mask was always 1024*1024*1024.  The Tsunami chipset needs it to be
2*1024*1024*1024

These changes should not affect the i386 port

Reviewed by:	Doug Rabson <dfr@nlsystems.com>
1999-05-26 23:01:57 +00:00
wpaul
6db3645dee Upgrade firmware images Alteon's latest release (12.3.10). This fixes a
bug in the stats accounting (nicSendBDs counter was bogus when TX ring was
configured to be in host memory).

Update if_tireg.h to look for new firmware fix level.
1999-05-03 17:44:53 +00:00
wpaul
477aac47c6 Add driver support for gigabit ethernet adapters based on the Alteon
Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed
gigabit ethernet adapters out there which use the Alteon chipset so
this driver covers a fair amount of hardware. I know that it works with
the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also
work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit
ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and
and Sun boards. The Netgear board is the cheapest (~$350US) but still
yields fairly good performance.

Support is provided for jumbo frames with all adapters (just set the
MTU to something larger than 1500 bytes), as well as hardware multicast
filtering and vlan tagging (in conjunction with the vlan support in
-current, which I should merge into -stable soon). There are some hooks
for checksum offload support, but they're turned off for now since
FreeBSD doesn't have an officially sanctioned way to support checksum
offloading (yet).

I have not added the 'device ti0' entry to GENERIC since the driver
with all the firmware compiled in is quite large, and it doesn't really
fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00