jonathan cd38c4da5c Commit workaround for hardware bug: 5701 chips running in PCI-X mode
require that the DMA receive buffers be aligned. The driver was
deliberately mis-aligning by 2 bytes, to force the layer-2/3
headers to 32-bit alignment.

Workaround: if chip is a 5701, and is in PCI-X mode, leave the DMA
buffers aligned.  If the host CPU requires alignment, copy the buffer
after reception to force aligment.

Tested  on an i386 in  PCI-X bus, with __NO_STRICT_ALIGNMENT forced off.

Patch and comments reworked  to minimize drift from
	FreeBSD if_bge.c rev 1.14.
2003-03-07 18:57:53 +00:00
2003-03-07 01:21:56 +00:00
2003-03-07 01:14:30 +00:00
2003-03-07 01:22:16 +00:00
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