Oleg Bulyzhin wrote:
On Sat, Apr 15, 2006 at 08:13:07AM +0000, Scott Long wrote:
scottl 2006-04-15 08:13:07 UTC
FreeBSD src repository
Modified files:
sys/dev/bge if_bge.c
Log:
Fix the interrupt handler to do the mandatory PCI flush before looking at
DMA memory. The could contribute towards missed link state changes under
heavy bus load.
Revision Changes Path
1.126 +10 -14 src/sys/dev/bge/if_bge.c
Should not we do the same for polling case?
No, because there is no race with the interrupt signal when you're
polling. The data is in host memory or it isn't, and doing a bus
flush on every loop would be highly counter productive.
Scott
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