[PATCH net-next v5 1/8] net: add helpers for EEE configuration

Oleksij Rempel
2024-02-21T06:21:23Z

From: Russell King <rmk+kernel@armlinux.org.uk>

Add helpers that phylib and phylink can use to manage EEE configuration
and determine whether the MAC should be permitted to use LPI based on
that configuration.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
include/net/eee.h | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
create mode 100644 include/net/eee.h

diff --git a/include/net/eee.h b/include/net/eee.h
new file mode 100644
index 000000000000..1232658b32f4
--- /dev/null
+++ b/include/net/eee.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _EEE_H
+#define _EEE_H
+
+#include <linux/types.h>
+
+struct eee_config {
+ u32 tx_lpi_timer;
+ bool tx_lpi_enabled;
+ bool eee_enabled;
+};
+
+static inline bool eeecfg_mac_can_tx_lpi(const struct eee_config *eeecfg)
+{
+ /* eee_enabled is the master on/off */
+ if (!eeecfg->eee_enabled || !eeecfg->tx_lpi_enabled)
+ return false;
+
+ return true;
+}
+
+static inline void eeecfg_to_eee(const struct eee_config *eeecfg,
+ struct ethtool_keee *eee)
+{
+ eee->tx_lpi_timer = eeecfg->tx_lpi_timer;
+ eee->tx_lpi_enabled = eeecfg->tx_lpi_enabled;
+ eee->eee_enabled = eeecfg->eee_enabled;
+}
+
+static inline void eee_to_eeecfg(const struct ethtool_keee *eee,
+ struct eee_config *eeecfg)
+{
+ eeecfg->tx_lpi_timer = eee->tx_lpi_timer;
+ eeecfg->tx_lpi_enabled = eee->tx_lpi_enabled;
+ eeecfg->eee_enabled = eee->eee_enabled;
+}
+
+#endif
--
2.39.2