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CVS commit: src/sys/dev/ic
Module Name: src
Committed By: dyoung
Date: Tue Jun 17 02:01:59 UTC 2008
Repair a discrepancy between the 802.11 standard and ath(4) operation
where transmit fragmentation is concerned.
Extract from ath_tx_start() the code for subtracting padding from
the packet length, creating subroutine deduct_pad_bytes(). Note
that the arithmetic in deduct_pad_bytes() is suspicious.
Use deduct_pad_bytes() to repair the computation of the 802.11
Duration field for fragments. The computation used to leave out
the FCS, among other things.
Some discrepancies between ath(4) operation and the standard may
still remain. According to my observations, the gaps between
transmitted fragments may be approximately 8 microseconds too long.
To generate a diff of this commit:
cvs rdiff -r1.100 -r1.101 src/sys/dev/ic/ath.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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