diff options
| author | Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> | 2012-08-29 19:40:27 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2012-10-24 11:49:48 +0300 |
| commit | 9233299394de1c571e52ab2dbe1995c1fbdc8fda (patch) | |
| tree | 875d999ad74083140f1560215a88bc94a6e37286 /drivers/net/wireless/ath/ath6kl/core.c | |
| parent | 84caf8005b09e0a4a57fce44119489d1b0bbbe94 (diff) | |
ath6kl: Add support to detect fw error through heart beat
This patch adds support to detect fw error condition by sending
periodic message (heart beat challenge) to firmware. Upon reception
of the message, fw would send a response event to driver. When
there are no reponses from fw for about 5 cmd driver would
trigger the recovery logic assuming that fw has gone into an
error state.
Capable fw will advertise this capability through
ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL bit. This feature
is disabled by default, can be enabled through a modparam
(heart_beat_poll). This modparam also confiures the polling
interval in msecs.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/core.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/core.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/core.c b/drivers/net/wireless/ath/ath6kl/core.c index adcaa965486b..fd5dd3aca771 100644 --- a/drivers/net/wireless/ath/ath6kl/core.c +++ b/drivers/net/wireless/ath/ath6kl/core.c @@ -33,6 +33,7 @@ static unsigned int wow_mode; static unsigned int uart_debug; static unsigned int ath6kl_p2p; static unsigned int testmode; +static unsigned int heart_beat_poll; module_param(debug_mask, uint, 0644); module_param(suspend_mode, uint, 0644); @@ -40,6 +41,9 @@ module_param(wow_mode, uint, 0644); module_param(uart_debug, uint, 0644); module_param(ath6kl_p2p, uint, 0644); module_param(testmode, uint, 0644); +module_param(heart_beat_poll, uint, 0644); +MODULE_PARM_DESC(heart_beat_poll, "Enable fw error detection periodic" \ + "polling. This also specifies the polling interval in msecs"); void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb) { @@ -202,6 +206,11 @@ int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type) ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", __func__, wdev->netdev->name, wdev->netdev, ar); + if (heart_beat_poll && + test_bit(ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, + ar->fw_capabilities)) + ar->fw_recovery.hb_poll = heart_beat_poll; + ath6kl_recovery_init(ar); return ret; |