wifi: rtw89: Correct EHT TX rate on 20MHz connection

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We used EHT capability of 20MHz-only as rate mask to RA (rate adaptive)
H2C command when connecting with AP set EHT 20MHz. It would get the
wrong rate mask and the MCS rate can only reach MCS11.

According to the description of 802.11be spec, if all supported channel
bandwidth field of HE PHY capabilities are zero, then the EHT capability
of 20MHz-only is valid. As a result, we adjust the code to set correct
rate mask based on HE PHY bandwidth capability.

Signed-off-by: Dian-Syuan Yang <dian_syuan0116@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240305004502.6655-1-pkshih@realtek.com

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Dian-Syuan Yang 2024-03-05 08:45:02 +08:00 • committed by Kalle Valo

parent c2b2509286

commit f1dfcee2ea

1 changed files with 9 additions and 4 deletions

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drivers/net/wireless/realtek/rtw89/phy.c

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