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rtw89: pci: handle hardware watchdog timeout interrupt status

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This watchdog timeout status bit indicates hardware gets wrong, so run SER
L2 flow that calls mac80211 to restart hardware.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220520071731.38563-4-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih 2022-05-20 15:17:28 +08:00 committed by Kalle Valo
parent 6d7d1fef3f
commit 768992eb92
3 changed files with 8 additions and 3 deletions
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1
drivers/net/wireless/realtek/rtw89/mac.h
View File

@ -666,6 +666,7 @@ enum mac_ax_err_info {
MAC_AX_ERR_L2_ERR_APB_BBRF_TO_RX4281 = 0x2360,
MAC_AX_ERR_L2_ERR_APB_BBRF_TO_OTHERS = 0x2370,
MAC_AX_ERR_L2_RESET_DONE = 0x2400,
MAC_AX_ERR_L2_ERR_WDT_TIMEOUT_INT = 0x2599,
MAC_AX_ERR_CPU_EXCEPTION = 0x3000,
MAC_AX_ERR_ASSERTION = 0x4000,
MAC_AX_GET_ERR_MAX,

9
drivers/net/wireless/realtek/rtw89/pci.c
View File

@ -738,6 +738,9 @@ static irqreturn_t rtw89_pci_interrupt_threadfn(int irq, void *dev)
if (unlikely(isrs.halt_c2h_isrs & B_AX_HALT_C2H_INT_EN))
rtw89_ser_notify(rtwdev, rtw89_mac_get_err_status(rtwdev));
if (unlikely(isrs.halt_c2h_isrs & B_AX_WDT_TIMEOUT_INT_EN))
rtw89_ser_notify(rtwdev, MAC_AX_ERR_L2_ERR_WDT_TIMEOUT_INT);
if (unlikely(rtwpci->under_recovery))
goto enable_intr;
@ -3126,7 +3129,7 @@ static void rtw89_pci_recovery_intr_mask_v1(struct rtw89_dev *rtwdev)
struct rtw89_pci *rtwpci = (struct rtw89_pci *)rtwdev->priv;
rtwpci->ind_intrs = B_AX_HS0ISR_IND_INT_EN;
rtwpci->halt_c2h_intrs = B_AX_HALT_C2H_INT_EN;
rtwpci->halt_c2h_intrs = B_AX_HALT_C2H_INT_EN | B_AX_WDT_TIMEOUT_INT_EN;
rtwpci->intrs[0] = 0;
rtwpci->intrs[1] = 0;
}
@ -3138,7 +3141,7 @@ static void rtw89_pci_default_intr_mask_v1(struct rtw89_dev *rtwdev)
rtwpci->ind_intrs = B_AX_HCI_AXIDMA_INT_EN |
B_AX_HS1ISR_IND_INT_EN |
B_AX_HS0ISR_IND_INT_EN;
rtwpci->halt_c2h_intrs = B_AX_HALT_C2H_INT_EN;
rtwpci->halt_c2h_intrs = B_AX_HALT_C2H_INT_EN | B_AX_WDT_TIMEOUT_INT_EN;
rtwpci->intrs[0] = B_AX_TXDMA_STUCK_INT_EN |
B_AX_RXDMA_INT_EN |
B_AX_RXP1DMA_INT_EN |
@ -3155,7 +3158,7 @@ static void rtw89_pci_low_power_intr_mask_v1(struct rtw89_dev *rtwdev)
rtwpci->ind_intrs = B_AX_HS1ISR_IND_INT_EN |
B_AX_HS0ISR_IND_INT_EN;
rtwpci->halt_c2h_intrs = B_AX_HALT_C2H_INT_EN;
rtwpci->halt_c2h_intrs = B_AX_HALT_C2H_INT_EN | B_AX_WDT_TIMEOUT_INT_EN;
rtwpci->intrs[0] = 0;
rtwpci->intrs[1] = B_AX_GPIO18_INT_EN;
}

1
drivers/net/wireless/realtek/rtw89/pci.h
View File

@ -94,6 +94,7 @@
/* Interrupts */
#define R_AX_HIMR0 0x01A0
#define B_AX_WDT_TIMEOUT_INT_EN BIT(22)
#define B_AX_HALT_C2H_INT_EN BIT(21)
#define R_AX_HISR0 0x01A4