From: "Marek Behún" <kabel@kernel.org>
To: linux-leds@vger.kernel.org
Cc: netdev@vger.kernel.org, "Pavel Machek" <pavel@ucw.cz>,
"Dan Murphy" <dmurphy@ti.com>,
"Russell King" <linux@armlinux.org.uk>,
"Andrew Lunn" <andrew@lunn.ch>,
"Matthias Schiffer" <matthias.schiffer@ew.tq-group.com>,
"Jacek Anaszewski" <jacek.anaszewski@gmail.com>,
"Mauro Carvalho Chehab" <mchehab+huawei@kernel.org>,
"Marek Behún" <kabel@kernel.org>
Subject: [PATCH leds v2 04/10] leds: trigger: netdev: support HW offloading
Date: Tue, 1 Jun 2021 02:51:49 +0200 [thread overview]
Message-ID: <20210601005155.27997-5-kabel@kernel.org> (raw)
In-Reply-To: <20210601005155.27997-1-kabel@kernel.org>
Add support for HW offloading of the netdev trigger.
We are only offloading if the link is up and rx/tx blinking is
requested.
Signed-off-by: Marek Behún <kabel@kernel.org>
---
drivers/leds/trigger/ledtrig-netdev.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c
index 9a98f9c5b8d0..1f1b63d5a78d 100644
--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@ -52,9 +52,17 @@ static void set_baseline_state(struct led_netdev_data *trigger_data)
if (!led_cdev->blink_brightness)
led_cdev->blink_brightness = led_cdev->max_brightness;
- if (!test_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode))
+ if (!test_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode)) {
+ led_trigger_offload_stop(led_cdev);
led_set_brightness(led_cdev, LED_OFF);
- else {
+ } else {
+ bool blink = test_bit(NETDEV_LED_TX, &trigger_data->mode) ||
+ test_bit(NETDEV_LED_RX, &trigger_data->mode);
+ /* Try offload to HW only if RX/TX blinking is requested */
+ if (blink)
+ if (!led_trigger_offload(led_cdev))
+ return;
+
if (test_bit(NETDEV_LED_LINK, &trigger_data->mode))
led_set_brightness(led_cdev,
led_cdev->blink_brightness);
@@ -64,8 +72,7 @@ static void set_baseline_state(struct led_netdev_data *trigger_data)
/* If we are looking for RX/TX start periodically
* checking stats
*/
- if (test_bit(NETDEV_LED_TX, &trigger_data->mode) ||
- test_bit(NETDEV_LED_RX, &trigger_data->mode))
+ if (blink)
schedule_delayed_work(&trigger_data->work, 0);
}
}
--
2.26.3
next prev parent reply other threads:[~2021-06-01 0:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-01 0:51 [PATCH leds v2 00/10] Add support for offloading netdev trigger to HW + example implementation for Turris Omnia Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 01/10] leds: trigger: netdev: don't explicitly zero kzalloced data Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 02/10] leds: trigger: add API for HW offloading of triggers Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 03/10] leds: trigger: netdev: move trigger data structure to global include dir Marek Behún
2021-06-01 0:51 ` Marek Behún [this message]
2021-06-01 0:51 ` [PATCH leds v2 05/10] leds: trigger: netdev: change spinlock to mutex Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 06/10] leds: core: inform trigger that it's deactivation is due to LED removal Marek Behún
2021-06-01 21:12 ` Andrew Lunn
2021-06-02 12:44 ` Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 07/10] leds: turris-omnia: refactor sw mode setting code into separate function Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 08/10] leds: turris-omnia: refactor brightness setting function Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 09/10] leds: turris-omnia: initialize each multicolor LED to white color Marek Behún
2021-06-01 0:51 ` [PATCH leds v2 10/10] leds: turris-omnia: support offloading netdev trigger for WAN LED Marek Behún
2021-06-01 1:44 ` Marek Behún
2021-06-01 21:19 ` Andrew Lunn
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