wil6210: manual FW error recovery mode
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>
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 00c4f0a..2991609 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -23,6 +23,7 @@
#include <linux/timex.h>
#include "wil_platform.h"
+extern bool no_fw_recovery;
#define WIL_NAME "wil6210"
#define WIL_FW_NAME "wil6210.fw"
@@ -379,6 +380,12 @@
unsigned long tid_rx_stop_requested[BITS_TO_LONGS(WIL_STA_TID_NUM)];
};
+enum {
+ fw_recovery_idle = 0,
+ fw_recovery_pending = 1,
+ fw_recovery_running = 2,
+};
+
struct wil6210_priv {
struct pci_dev *pdev;
int n_msi;
@@ -389,8 +396,10 @@
u32 hw_version;
struct wil_board *board;
u8 n_mids; /* number of additional MIDs as reported by FW */
- int recovery_count; /* num of FW recovery attempts in a short time */
+ u32 recovery_count; /* num of FW recovery attempts in a short time */
+ u32 recovery_state; /* FW recovery state machine */
unsigned long last_fw_recovery; /* jiffies of last fw recovery */
+ wait_queue_head_t wq; /* for all wait_event() use */
/* profile */
u32 monitor_flags;
u32 secure_pcp; /* create secure PCP? */
@@ -507,6 +516,7 @@
int wil_reset(struct wil6210_priv *wil);
void wil_set_itr_trsh(struct wil6210_priv *wil);
void wil_fw_error_recovery(struct wil6210_priv *wil);
+void wil_set_recovery_state(struct wil6210_priv *wil, int state);
void wil_link_on(struct wil6210_priv *wil);
void wil_link_off(struct wil6210_priv *wil);
int wil_up(struct wil6210_priv *wil);