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wil6210: manual FW error recovery mode

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Introduce manual FW recovery mode. It is activated if module parameter
@no_fw_recovery set to true. May be changed at runtime.

Recovery information provided by new "recovery" debugfs file. It prints:

mode = [auto|manual]
state = [idle|pending|running]

In manual mode, after FW error, recovery won't start automatically. Instead,
after notification to user space, recovery waits in "pending" state, as indicated by the
"recovery" debugfs file. User space tools may perform data collection and allow to
continue recovery by writing "run" to the "recovery" debugfs file.
Alternatively, recovery pending may be canceled by stopping network interface
i.e. 'ifconfig wlan0 down'

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Kondratiev
2014-10-01 15:05:24 +03:00
committed by John W. Linville
parent e6664dff06
commit c33407a8c5
5 changed files with 121 additions and 9 deletions
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1
drivers/net/wireless/ath/wil6210/wmi.c
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@@ -299,6 +299,7 @@ static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
{
wil_dbg_wmi(wil, "WMI: got FW ready event\n");
wil_set_recovery_state(wil, fw_recovery_idle);
set_bit(wil_status_fwready, &wil->status);
/* let the reset sequence continue */
complete(&wil->wmi_ready);