write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/include/linux/netdev_features.h
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@@ -1,11 +1,6 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * Network device features.
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- *
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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  */
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 #ifndef _LINUX_NETDEV_FEATURES_H
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 #define _LINUX_NETDEV_FEATURES_H
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@@ -58,8 +53,9 @@
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 	NETIF_F_GSO_ESP_BIT,		/* ... ESP with TSO */
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 	NETIF_F_GSO_UDP_BIT,		/* ... UFO, deprecated except tuntap */
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 	NETIF_F_GSO_UDP_L4_BIT,		/* ... UDP payload GSO (not UFO) */
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+	NETIF_F_GSO_FRAGLIST_BIT,		/* ... Fraglist GSO */
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 	/**/NETIF_F_GSO_LAST =		/* last bit, see GSO_MASK */
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-		NETIF_F_GSO_UDP_L4_BIT,
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+		NETIF_F_GSO_FRAGLIST_BIT,
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 	NETIF_F_FCOE_CRC_BIT,		/* FCoE CRC32 */
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 	NETIF_F_SCTP_CRC_BIT,		/* SCTP checksum offload */
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@@ -85,12 +81,15 @@
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 	NETIF_F_GRO_HW_BIT,		/* Hardware Generic receive offload */
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 	NETIF_F_HW_TLS_RECORD_BIT,	/* Offload TLS record */
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+	NETIF_F_GRO_FRAGLIST_BIT,	/* Fraglist GRO */
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+
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+	NETIF_F_HW_MACSEC_BIT,		/* Offload MACsec operations */
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 	/*
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 	 * Add your fresh new feature above and remember to update
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 	 * netdev_features_strings[] in net/ethtool/common.c and maybe
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 	 * some feature mask #defines below. Please also describe it
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-	 * in Documentation/networking/netdev-features.txt.
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+	 * in Documentation/networking/netdev-features.rst.
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 	 */
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 	/**/NETDEV_FEATURE_COUNT
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@@ -155,8 +154,11 @@
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 #define NETIF_F_GSO_UDP_L4	__NETIF_F(GSO_UDP_L4)
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 #define NETIF_F_HW_TLS_TX	__NETIF_F(HW_TLS_TX)
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 #define NETIF_F_HW_TLS_RX	__NETIF_F(HW_TLS_RX)
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+#define NETIF_F_GRO_FRAGLIST	__NETIF_F(GRO_FRAGLIST)
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+#define NETIF_F_GSO_FRAGLIST	__NETIF_F(GSO_FRAGLIST)
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+#define NETIF_F_HW_MACSEC	__NETIF_F(HW_MACSEC)
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-/* Finds the next feature with the highest number of the range of start till 0.
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+/* Finds the next feature with the highest number of the range of start-1 till 0.
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  */
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 static inline int find_next_netdev_feature(u64 feature, unsigned long start)
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 {
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@@ -175,7 +177,7 @@
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 	for ((bit) = find_next_netdev_feature((mask_addr),		\
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 					      NETDEV_FEATURE_COUNT);	\
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 	     (bit) >= 0;						\
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-	     (bit) = find_next_netdev_feature((mask_addr), (bit) - 1))
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+	     (bit) = find_next_netdev_feature((mask_addr), (bit)))
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 /* Features valid for ethtool to change */
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 /* = all defined minus driver/device-class-related */
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@@ -191,7 +193,7 @@
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 #define NETIF_F_GSO_MASK	(__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \
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 		__NETIF_F_BIT(NETIF_F_GSO_SHIFT))
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-/* List of IP checksum features. Note that NETIF_F_ HW_CSUM should not be
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+/* List of IP checksum features. Note that NETIF_F_HW_CSUM should not be
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  * set in features when NETIF_F_IP_CSUM or NETIF_F_IPV6_CSUM are set--
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  * this would be contradictory
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  */
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@@ -231,6 +233,9 @@
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 /* changeable features with no special hardware requirements */
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 #define NETIF_F_SOFT_FEATURES	(NETIF_F_GSO | NETIF_F_GRO)
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+/* Changeable features with no special hardware requirements that defaults to off. */
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+#define NETIF_F_SOFT_FEATURES_OFF	NETIF_F_GRO_FRAGLIST
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+
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 #define NETIF_F_VLAN_FEATURES	(NETIF_F_HW_VLAN_CTAG_FILTER | \
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 				 NETIF_F_HW_VLAN_CTAG_RX | \
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 				 NETIF_F_HW_VLAN_CTAG_TX | \