linux/drivers/net/wireless/rtl818x
Andrea Merello 79ee65659e rtl818x_pci: fix response rate may be incorrect.
Currently the allowed "respose rate" set (rates for HW generated frames
like ACKs) is the same as the basic rate set.

The HW will use the higher allowed response rate that is lower than the
rate of the received frame.

This is more or less what IEEE80211 mandates, but I missed the fact
that IEEE80211 also says that whenever it happens that for a modulation
class there is no any rate in the basic rates set, then the response rate
set shall include also all the mandatory rates for that modulation class.

This patch adds mandatory OFDM rates to the allowed response rate set if
no OFDM rate is included in the basic rate set.

Depending by the AP, I faced cases in which this patch seems to cause a
noticeable perfomance improvement.

- With my usual test AP there is no particular perfomance difference.
- With a prism54/hostapd AP this patch causes RX thoughput increase from
  about 5Mbps to about 20Mbps.

Hopefully this patch may help people that faced performance regression wrt
the old staging driver.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-10-07 14:48:37 -04:00
..
rtl8180 rtl818x_pci: fix response rate may be incorrect. 2014-10-07 14:48:37 -04:00
rtl8187 rtl8187: make CTS-to-self protection work 2014-05-07 16:08:09 -04:00
Kconfig rtl818x: Update Kconfig for rtl8187se 2014-03-27 14:20:10 -04:00
Makefile rtl818x: move rtl8180 and rtl8187 to separate subdirectories 2010-12-22 13:45:32 -05:00
rtl818x.h rtl8180: add parentheses to REG_ADDR macros 2014-04-22 15:06:27 -04:00