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wifi: rtw89: fix 8852AE disconnection caused by RX full flags

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commit b74bb07cda upstream.

RX full flags are raised if certain types of RX FIFO are full, and then
drop all following MPDU of AMPDU. In order to resume to receive MPDU
when RX FIFO becomes available, we clear the register bits by the
commit a0d99ebb3e ("wifi: rtw89: initialize DMA of CMAC"). But, 8852AE
needs more settings to support this. To quickly fix disconnection problem,
revert the behavior as before.

Fixes: a0d99ebb3e ("wifi: rtw89: initialize DMA of CMAC")
Reported-by: Damian B <bronecki.damian@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217710
Cc: <Stable@vger.kernel.org>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Damian B <bronecki.damian@gmail.com>
Link: https://lore.kernel.org/r/20230808005426.5327-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ping-Ke Shih
2023-08-08 08:54:26 +08:00
committed by Greg Kroah-Hartman
parent e642eb67b8
commit aa4b5895a8
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/realtek/rtw89/mac.c
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@@ -2209,7 +2209,7 @@ static int cmac_dma_init(struct rtw89_dev *rtwdev, u8 mac_idx)
u32 reg; u32 reg;
int ret; int ret;
if (chip_id != RTL8852A && chip_id != RTL8852B) if (chip_id != RTL8852B)
return 0; return 0;
ret = rtw89_mac_check_mac_en(rtwdev, mac_idx, RTW89_CMAC_SEL); ret = rtw89_mac_check_mac_en(rtwdev, mac_idx, RTW89_CMAC_SEL);