ath10k: update the phymode along with bandwidth change request
In the case of Station connects to AP with narrower bandwidth at beginning.
And later the AP changes the bandwidth to winder bandwidth, the AP will
beacon with wider bandwidth IE, eg VHT20->VHT40->VHT80 or VHT40->VHT80.
Since the supported BANDWIDTH will be limited by the PHYMODE, so while
Station receives the bandwidth change request, it will also need to
reconfigure the PHYMODE setting to firmware instead of just configuring
the BANDWIDTH info, otherwise it'll trigger a firmware crash with
non-support bandwidth.
The issue was observed in WLAN.RM.4.4.1-00051-QCARMSWP-1, QCA6174 with
below scenario:
AP xxx changed bandwidth, new config is 5200 MHz, width 2 (5190/0 MHz)
disconnect from AP xxx for new auth to yyy
RX ReassocResp from xxx (capab=0x1111 status=0 aid=102)
associated
....
AP xxx changed bandwidth, new config is 5200 MHz, width 2 (5190/0 MHz)
AP xxx changed bandwidth, new config is 5200 MHz, width 3 (5210/0 MHz)
Reported-by: Rouven Czerwinski <rouven@czerwinskis.de> Tested-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
projects / users / jedix / linux-maple.git / commit