cvs commit: src/sys/dev/cs if_cs.c
imp at FreeBSD.org
Fri Jun 6 17:22:18 UTC 2008
imp 2008-06-06 17:22:07 UTC
FreeBSD src repository
SVN rev 179620 on 2008-06-06 17:22:07Z by imp
o Remove unused cs_debug tunable. I think I added it and then nothing with
it. Bad imp. Removing us dips us under 10,000 in size too.
o Replace an unconditional 30ms DELAY (yes, busy wait) with a check of the
SIBUSY bit in the SelfST register before accessing the eeprom. This changes
the time to read the EEPROM from 2 * 20 * 30ms (1.2s) to < 20*25us (.0005s)
and make the attach of the card tolerable when ethernet media is present.
Include data from the datasheet about why this works. While this is a 2500x
speed increase, it doesn't really matter at all once the card is probed...
o set dev earlier in softc.
Revision Changes Path
1.52 +22 -10 src/sys/dev/cs/if_cs.c
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