diff options
| author | Ping-Ke Shih <pkshih@realtek.com> | 2024-01-21 15:18:25 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2024-02-01 12:15:42 +0200 |
| commit | 0bc7d1d4e63cf31ff1b4396b0e2f0e3c76828d26 (patch) | |
| tree | 04a75a77e01263029617080323adbc4c6c64b8b9 /drivers/net/wireless/realtek/rtw89/rtw8852ce.c | |
| parent | 26cdaee43dc5f9c9d0c5429b365b8f094afad717 (diff) | |
wifi: rtw89: pci: validate RX tag for RXQ and RPQ
PCI RX ring is a kind of read/write index ring, and DMA and ring index are
asynchronous, so suddenly driver gets newer index ahead before DMA. To
resolve this rare situation, we use a RX tag as helpers to make sure DMA
is done.
The RX tag is a 13-bit value, and range is from 1 ~ 0x1FFF, but 0 isn't
used so should be skipped.
Only enable this validation to coming WiFi 7 chips, because existing
chips use different design and don't really meet this situation.
Add missed rx_ring_eq_is_full for 8851BE by the way.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240121071826.10159-4-pkshih@realtek.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/rtw8852ce.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/rtw8852ce.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852ce.c b/drivers/net/wireless/realtek/rtw89/rtw8852ce.c index 4592de3dbd94..583ea673a4f5 100644 --- a/drivers/net/wireless/realtek/rtw89/rtw8852ce.c +++ b/drivers/net/wireless/realtek/rtw89/rtw8852ce.c @@ -35,6 +35,7 @@ static const struct rtw89_pci_info rtw8852c_pci_info = { .io_rcy_en = MAC_AX_PCIE_ENABLE, .io_rcy_tmr = MAC_AX_IO_RCY_ANA_TMR_6MS, .rx_ring_eq_is_full = false, + .check_rx_tag = false, .init_cfg_reg = R_AX_HAXI_INIT_CFG1, .txhci_en_bit = B_AX_TXHCI_EN_V1, |