netdev - [PATCH v4 net-next 2/9] net: add helpers for EEE configuration

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230618184119.4017149-3-andrew@lunn.ch>
Date: Sun, 18 Jun 2023 20:41:12 +0200
From: Andrew Lunn <andrew@...n.ch>
To: netdev <netdev@...r.kernel.org>
Cc: Russell King <rmk+kernel@...linux.org.uk>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Oleksij Rempel <linux@...pel-privat.de>,
	Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v4 net-next 2/9] net: add helpers for EEE configuration

From: Russell King <rmk+kernel@...linux.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@...linux.org.uk>
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 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..d353b79ae79f
--- /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_eee *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_eee *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
-- 
2.40.1