CVS commit: src/sys/net80211

["Charles M. Hannum" <mycroft%netbsd.org@localhost>]

Module Name:    src
Committed By:   mycroft
Date:           Mon Dec 27 05:35:33 UTC 2004

Modified Files:
        src/sys/net80211: ieee80211_output.c

Log Message:
Simplify the duration calculations somewhat.
* Add an intermediate variable, ctsrate, which is currently derived directly
 from rate, but may be handled differently later (especially for 11g).
* Assume ACKs are sent at the same rate as the original data packet, as ath
  does, shortening the ACK reservation time substantially.
* Add a note that we need to deal with not adding the ACK time for some
  packets, though this is not implemented yet.

Questions:
* How do we affect the control rate used to send RTS/CTS packets?
* Is the PLCP header length actually controlled by the preamble length
  selection, or should this be based on the transmit rate?

Of course short preamble is not actually implemented/working yet.


To generate a diff of this commit:
cvs rdiff -r1.21 -r1.22 src/sys/net80211/ieee80211_output.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.