From bd8bdc6ca8180afe21724cbd362847517a73b213 Mon Sep 17 00:00:00 2001
From: Lazar Alexei <qca_ailizaro@qca.qualcomm.com>
Date: Tue, 14 Nov 2017 15:25:44 +0200
Subject: [PATCH] wil6210: update statistics for suspend
Git-commit: bd8bdc6ca8180afe21724cbd362847517a73b213
Patch-mainline: v4.16-rc1
References: FATE#326906
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/wil6210/debugfs.c | 47 ++++++++++++++-------
drivers/net/wireless/ath/wil6210/pcie_bus.c | 20 ++++++---
drivers/net/wireless/ath/wil6210/pm.c | 8 ++--
drivers/net/wireless/ath/wil6210/wil6210.h | 11 +++--
4 files changed, 59 insertions(+), 27 deletions(-)
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index edaab0f5a11e..4475937faf25 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/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 = {
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 0592c73745cb..42a5480c764d 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/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;
diff --git a/drivers/net/wireless/ath/wil6210/pm.c b/drivers/net/wireless/ath/wil6210/pm.c
index 9fba237be358..056b180fad7f 100644
--- a/drivers/net/wireless/ath/wil6210/pm.c
+++ b/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;
}
}
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index ea04117f2adf..cf27d9711dde 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/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;
};
--
2.19.2