> -----Original Message----- > From: kvalo=codeaurora.org@xxxxxxxxxxxxxxxxx [mailto:kvalo=codeaurora.org@xxxxxxxxxxxxxxxxx] On > Behalf Of Kalle Valo > Sent: Sunday, April 11, 2021 5:21 PM > To: Pkshih > Cc: tony0620emma@xxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx; DeanKu; Bernie Huang; Shaofu; Steven Ting; > Kevin Yang > Subject: Re: [PATCH 2/7] rtw88: follow the AP basic rates for tx mgmt frame > > Ping-Ke Shih <pkshih@xxxxxxxxxxx> wrote: > > > From: Shao-Fu Cheng <shaofu@xxxxxxxxxxx> > > > > By default the driver uses the 1M and 6M rate for managemnt frames > > in 2G and 5G bands respectively. But when the basic rates is configured > > from the mac80211, we need to send the management frames according the > > basic rates. > > > > This commit makes the driver use the lowest basic rates to send > > the management frames and a debufs entry to enable/disable force to use > > the lowest rate 1M/6M for 2.4G/5G bands. > > > > obtain current setting > > cat /sys/kernel/debug/ieee80211/phyX/rtw88/basic_rates > > > > force lowest rate: > > echo 1 > /sys/kernel/debug/ieee80211/phyX/rtw88/basic_rates > > > > Signed-off-by: Shao-Fu Cheng <shaofu@xxxxxxxxxxx> > > Signed-off-by: Yu-Yen Ting <steventing@xxxxxxxxxxx> > > Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> > > Why is a debugfs interface needed? > By default, driver follows AP's basic rates that may be 24M and above, and does association with 24M rate. If AP is far away, it may be hard to communicate with 24M rate. Therefore, we add a debugfs to allow driver to send management frames with low rate 6M or 1M. -- Ping-Ke
