wil6210: update statistics for suspend

Currently the statistics show how many successful/failed
suspend/resume operations the system had.
Update the statistics by splitting each successful/failed
suspend/resume operations to radio on/off.

Signed-off-by: Lazar Alexei <qca_ailizaro@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/wil6210/debugfs.c

@@ -1641,24 +1641,41 @@ static ssize_t wil_read_suspend_stats(struct file *file,
 				      size_t count, loff_t *ppos)
 {
 	struct wil6210_priv *wil = file->private_data;
-	static char text[400];
-	int n;
+	char *text;
+	int n, ret, text_size = 500;
+
+	text = kmalloc(text_size, GFP_KERNEL);
+	if (!text)
+		return -ENOMEM;
 
-	n = snprintf(text, sizeof(text),
-		     "Suspend statistics:\n"
+	n = snprintf(text, text_size,
+		     "Radio on suspend statistics:\n"
 		     "successful suspends:%ld failed suspends:%ld\n"
 		     "successful resumes:%ld failed resumes:%ld\n"
-		     "rejected by host:%ld rejected by device:%ld\n",
-		     wil->suspend_stats.successful_suspends,
-		     wil->suspend_stats.failed_suspends,
-		     wil->suspend_stats.successful_resumes,
-		     wil->suspend_stats.failed_resumes,
-		     wil->suspend_stats.rejected_by_host,
-		     wil->suspend_stats.rejected_by_device);
-
-	n = min_t(int, n, sizeof(text));
-
-	return simple_read_from_buffer(user_buf, count, ppos, text, n);
+		     "rejected by device:%ld\n"
+		     "Radio off suspend statistics:\n"
+		     "successful suspends:%ld failed suspends:%ld\n"
+		     "successful resumes:%ld failed resumes:%ld\n"
+		     "General statistics:\n"
+		     "rejected by host:%ld\n",
+		     wil->suspend_stats.r_on.successful_suspends,
+		     wil->suspend_stats.r_on.failed_suspends,
+		     wil->suspend_stats.r_on.successful_resumes,
+		     wil->suspend_stats.r_on.failed_resumes,
+		     wil->suspend_stats.rejected_by_device,
+		     wil->suspend_stats.r_off.successful_suspends,
+		     wil->suspend_stats.r_off.failed_suspends,
+		     wil->suspend_stats.r_off.successful_resumes,
+		     wil->suspend_stats.r_off.failed_resumes,
+		     wil->suspend_stats.rejected_by_host);
+
+	n = min_t(int, n, text_size);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, text, n);
+
+	kfree(text);
+
+	return ret;
 }
 
 static const struct file_operations fops_suspend_stats = {

drivers/net/wireless/ath/wil6210/pcie_bus.c

@@ -391,14 +391,16 @@ static int wil6210_suspend(struct device *dev, bool is_runtime)
 
 	rc = wil_suspend(wil, is_runtime, keep_radio_on);
 	if (!rc) {
-		wil->suspend_stats.successful_suspends++;
-
 		/* In case radio stays on, platform device will control
 		 * PCIe master
 		 */
-		if (!keep_radio_on)
+		if (!keep_radio_on) {
 			/* disable bus mastering */
 			pci_clear_master(pdev);
+			wil->suspend_stats.r_off.successful_suspends++;
+		} else {
+			wil->suspend_stats.r_on.successful_suspends++;
+		}
 	}
 out:
 	return rc;
@@ -424,11 +426,17 @@ static int wil6210_resume(struct device *dev, bool is_runtime)
 	rc = wil_resume(wil, is_runtime, keep_radio_on);
 	if (rc) {
 		wil_err(wil, "device failed to resume (%d)\n", rc);
-		wil->suspend_stats.failed_resumes++;
-		if (!keep_radio_on)
+		if (!keep_radio_on) {
 			pci_clear_master(pdev);
+			wil->suspend_stats.r_off.failed_resumes++;
+		} else {
+			wil->suspend_stats.r_on.failed_resumes++;
+		}
 	} else {
-		wil->suspend_stats.successful_resumes++;
+		if (keep_radio_on)
+			wil->suspend_stats.r_on.successful_resumes++;
+		else
+			wil->suspend_stats.r_off.successful_resumes++;
 	}
 
 	return rc;

drivers/net/wireless/ath/wil6210/pm.c

@@ -183,7 +183,7 @@ static int wil_suspend_keep_radio_on(struct wil6210_priv *wil)
 					break;
 				wil_err(wil,
 					"TO waiting for idle RX, suspend failed\n");
-				wil->suspend_stats.failed_suspends++;
+				wil->suspend_stats.r_on.failed_suspends++;
 				goto resume_after_fail;
 			}
 			wil_dbg_ratelimited(wil, "rx vring is not empty -> NAPI\n");
@@ -199,7 +199,7 @@ static int wil_suspend_keep_radio_on(struct wil6210_priv *wil)
 	 */
 	if (!wil_is_wmi_idle(wil)) {
 		wil_err(wil, "suspend failed due to pending WMI events\n");
-		wil->suspend_stats.failed_suspends++;
+		wil->suspend_stats.r_on.failed_suspends++;
 		goto resume_after_fail;
 	}
 
@@ -213,7 +213,7 @@ static int wil_suspend_keep_radio_on(struct wil6210_priv *wil)
 		if (rc) {
 			wil_err(wil, "platform device failed to suspend (%d)\n",
 				rc);
-			wil->suspend_stats.failed_suspends++;
+			wil->suspend_stats.r_on.failed_suspends++;
 			wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
 			wil_unmask_irq(wil);
 			goto resume_after_fail;
@@ -260,6 +260,7 @@ static int wil_suspend_radio_off(struct wil6210_priv *wil)
 		rc = wil_down(wil);
 		if (rc) {
 			wil_err(wil, "wil_down : %d\n", rc);
+			wil->suspend_stats.r_off.failed_suspends++;
 			goto out;
 		}
 	}
@@ -272,6 +273,7 @@ static int wil_suspend_radio_off(struct wil6210_priv *wil)
 		rc = wil->platform_ops.suspend(wil->platform_handle, false);
 		if (rc) {
 			wil_enable_irq(wil);
+			wil->suspend_stats.r_off.failed_suspends++;
 			goto out;
 		}
 	}

drivers/net/wireless/ath/wil6210/wil6210.h

@@ -82,12 +82,17 @@ static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
  */
 #define WIL_MAX_MPDU_OVERHEAD	(62)
 
-struct wil_suspend_stats {
+struct wil_suspend_count_stats {
 	unsigned long successful_suspends;
-	unsigned long failed_suspends;
 	unsigned long successful_resumes;
+	unsigned long failed_suspends;
 	unsigned long failed_resumes;
-	unsigned long rejected_by_device;
+};
+
+struct wil_suspend_stats {
+	struct wil_suspend_count_stats r_off;
+	struct wil_suspend_count_stats r_on;
+	unsigned long rejected_by_device; /* only radio on */
 	unsigned long rejected_by_host;
 };