diff options
| author | Wen Gong <wgong@codeaurora.org> | 2019-05-22 14:32:56 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-06-25 15:52:30 +0300 |
| commit | 0f132ba7ac645b31d3660b97fb142d46566286d2 (patch) | |
| tree | 86ed879dab5e8f658aa198e2b59dd31ade9a202d /drivers/net/wireless/ath | |
| parent | 9d740d6380e5030f356e2811b14fe45684c793b1 (diff) | |
ath10k: add support for firmware crash recovery on SDIO chip
The command to simulate firmware crash:
echo soft > /sys/kernel/debug/ieee80211/phy0/ath10k/simulate_fw_crash
It will send WMI_FORCE_FW_HANG_ASSERT to firmware, then it will trigger
CPU interrupt status register for SDIO chip, ath10k driver need to
configure it while enable SDIO interrupt, otherwise ath10k driver will
not get the assert error info.
After this change, it will success for simulate firmware crash.
Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00007-QCARMSWP-1.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Tested-by: Claire Chang <tientzu@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/hw.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/sdio.c | 10 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 248cfb4e53c3..d2d4af9c673b 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -1101,6 +1101,7 @@ ath10k_is_rssi_enable(struct ath10k_hw_params *hw, #define MBOX_CPU_INT_STATUS_ENABLE_ADDRESS 0x00000819 #define MBOX_CPU_INT_STATUS_ENABLE_BIT_LSB 0 #define MBOX_CPU_INT_STATUS_ENABLE_BIT_MASK 0x000000ff +#define MBOX_CPU_STATUS_ENABLE_ASSERT_MASK 0x00000001 #define MBOX_ERROR_STATUS_ENABLE_ADDRESS 0x0000081a #define MBOX_ERROR_STATUS_ENABLE_RX_UNDERFLOW_LSB 1 #define MBOX_ERROR_STATUS_ENABLE_RX_UNDERFLOW_MASK 0x00000002 diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c index 9bbd5b54b8ca..8d0f3525c1d9 100644 --- a/drivers/net/wireless/ath/ath10k/sdio.c +++ b/drivers/net/wireless/ath/ath10k/sdio.c @@ -855,6 +855,10 @@ static int ath10k_sdio_mbox_proc_cpu_intr(struct ath10k *ar) out: mutex_unlock(&irq_data->mtx); + if (cpu_int_status & MBOX_CPU_STATUS_ENABLE_ASSERT_MASK) { + ath10k_err(ar, "firmware crashed!\n"); + queue_work(ar->workqueue, &ar->restart_work); + } return ret; } @@ -1500,8 +1504,10 @@ static int ath10k_sdio_hif_enable_intrs(struct ath10k *ar) regs->int_status_en |= FIELD_PREP(MBOX_INT_STATUS_ENABLE_MBOX_DATA_MASK, 1); - /* Set up the CPU Interrupt status Register */ - regs->cpu_int_status_en = 0; + /* Set up the CPU Interrupt Status Register, enable CPU sourced interrupt #0 + * #0 is used for report assertion from target + */ + regs->cpu_int_status_en = FIELD_PREP(MBOX_CPU_STATUS_ENABLE_ASSERT_MASK, 1); /* Set up the Error Interrupt status Register */ regs->err_int_status_en = |