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path: root/drivers/net/wireless/ath/wil6210/main.c
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Diffstat (limited to 'drivers/net/wireless/ath/wil6210/main.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/main.c72
1 files changed, 64 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 21667e0..6500caf 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -25,14 +25,19 @@
#define WAIT_FOR_DISCONNECT_TIMEOUT_MS 2000
#define WAIT_FOR_DISCONNECT_INTERVAL_MS 10
-static bool no_fw_recovery;
+bool no_fw_recovery;
module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(no_fw_recovery, " disable FW error recovery");
+MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery");
static bool no_fw_load = true;
module_param(no_fw_load, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(no_fw_load, " do not download FW, use one in on-card flash.");
+static unsigned int itr_trsh = WIL6210_ITR_TRSH_DEFAULT;
+
+module_param(itr_trsh, uint, S_IRUGO);
+MODULE_PARM_DESC(itr_trsh, " Interrupt moderation threshold, usecs.");
+
#define RST_DELAY (20) /* msec, for loop in @wil_target_reset */
#define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */
@@ -186,17 +191,38 @@ static void wil_scan_timer_fn(ulong x)
schedule_work(&wil->fw_error_worker);
}
+static int wil_wait_for_recovery(struct wil6210_priv *wil)
+{
+ if (wait_event_interruptible(wil->wq, wil->recovery_state !=
+ fw_recovery_pending)) {
+ wil_err(wil, "Interrupt, canceling recovery\n");
+ return -ERESTARTSYS;
+ }
+ if (wil->recovery_state != fw_recovery_running) {
+ wil_info(wil, "Recovery cancelled\n");
+ return -EINTR;
+ }
+ wil_info(wil, "Proceed with recovery\n");
+ return 0;
+}
+
+void wil_set_recovery_state(struct wil6210_priv *wil, int state)
+{
+ wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__,
+ wil->recovery_state, state);
+
+ wil->recovery_state = state;
+ wake_up_interruptible(&wil->wq);
+}
+
static void wil_fw_error_worker(struct work_struct *work)
{
- struct wil6210_priv *wil = container_of(work,
- struct wil6210_priv, fw_error_worker);
+ struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
+ fw_error_worker);
struct wireless_dev *wdev = wil->wdev;
wil_dbg_misc(wil, "fw error worker\n");
- if (no_fw_recovery)
- return;
-
/* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO
* passed since last recovery attempt
*/
@@ -219,8 +245,13 @@ static void wil_fw_error_worker(struct work_struct *work)
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_MONITOR:
- wil_info(wil, "fw error recovery started (try %d)...\n",
+ wil_info(wil, "fw error recovery requested (try %d)...\n",
wil->recovery_count);
+ if (!no_fw_recovery)
+ wil->recovery_state = fw_recovery_running;
+ if (0 != wil_wait_for_recovery(wil))
+ break;
+
__wil_down(wil);
__wil_up(wil);
break;
@@ -297,6 +328,7 @@ int wil_priv_init(struct wil6210_priv *wil)
INIT_LIST_HEAD(&wil->pending_wmi_ev);
spin_lock_init(&wil->wmi_ev_lock);
+ init_waitqueue_head(&wil->wq);
wil->wmi_wq = create_singlethread_workqueue(WIL_NAME"_wmi");
if (!wil->wmi_wq)
@@ -309,6 +341,7 @@ int wil_priv_init(struct wil6210_priv *wil)
}
wil->last_fw_recovery = jiffies;
+ wil->itr_trsh = itr_trsh;
return 0;
}
@@ -325,6 +358,7 @@ void wil_priv_deinit(struct wil6210_priv *wil)
{
wil_dbg_misc(wil, "%s()\n", __func__);
+ wil_set_recovery_state(wil, fw_recovery_idle);
del_timer_sync(&wil->scan_timer);
cancel_work_sync(&wil->disconnect_worker);
cancel_work_sync(&wil->fw_error_worker);
@@ -437,6 +471,26 @@ static int wil_target_reset(struct wil6210_priv *wil)
return 0;
}
+/**
+ * wil_set_itr_trsh: - apply interrupt coalescing params
+ */
+void wil_set_itr_trsh(struct wil6210_priv *wil)
+{
+ /* disable, use usec resolution */
+ W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EXT_TICK);
+
+ /* disable interrupt moderation for monitor
+ * to get better timestamp precision
+ */
+ if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR)
+ return;
+
+ wil_info(wil, "set ITR_TRSH = %d usec\n", wil->itr_trsh);
+ W(RGF_DMA_ITR_CNT_TRSH, wil->itr_trsh);
+ W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EN |
+ BIT_DMA_ITR_CNT_CRL_EXT_TICK); /* start it */
+}
+
#undef R
#undef W
#undef S
@@ -547,6 +601,7 @@ int wil_reset(struct wil6210_priv *wil)
void wil_fw_error_recovery(struct wil6210_priv *wil)
{
wil_dbg_misc(wil, "starting fw error recovery\n");
+ wil->recovery_state = fw_recovery_pending;
schedule_work(&wil->fw_error_worker);
}
@@ -698,6 +753,7 @@ int wil_down(struct wil6210_priv *wil)
wil_dbg_misc(wil, "%s()\n", __func__);
+ wil_set_recovery_state(wil, fw_recovery_idle);
mutex_lock(&wil->mutex);
rc = __wil_down(wil);
mutex_unlock(&wil->mutex);
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