merge: branch 'bg/link-setting'

https://bugzilla.redhat.com/show_bug.cgi?id=2158328
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1541

29 files changed, 761 insertions, 21 deletions

diff --git a/Makefile.am b/Makefile.am
index 9109af4c6a..6fc3d035b6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1265,6 +1265,7 @@ src_libnm_core_impl_lib_h_pub_real = \
 	src/libnm-core-public/nm-setting-ip-tunnel.h \
 	src/libnm-core-public/nm-setting-ip4-config.h \
 	src/libnm-core-public/nm-setting-ip6-config.h \
+	src/libnm-core-public/nm-setting-link.h \
 	src/libnm-core-public/nm-setting-loopback.h \
 	src/libnm-core-public/nm-setting-macsec.h \
 	src/libnm-core-public/nm-setting-macvlan.h \
@@ -1346,6 +1347,7 @@ src_libnm_core_impl_lib_c_settings_real = \
 	src/libnm-core-impl/nm-setting-ip-tunnel.c \
 	src/libnm-core-impl/nm-setting-ip4-config.c \
 	src/libnm-core-impl/nm-setting-ip6-config.c \
+	src/libnm-core-impl/nm-setting-link.c \
 	src/libnm-core-impl/nm-setting-loopback.c \
 	src/libnm-core-impl/nm-setting-macsec.c \
 	src/libnm-core-impl/nm-setting-macvlan.c \
diff --git a/docs/libnm/libnm-docs.xml b/docs/libnm/libnm-docs.xml
index df668e4ee9..09468a5cdb 100644
--- a/docs/libnm/libnm-docs.xml
+++ b/docs/libnm/libnm-docs.xml
@@ -332,6 +332,7 @@ print ("NetworkManager version " + client.get_version())]]></programlisting></in
     <xi:include href="xml/nm-setting-ip-tunnel.xml"/>
     <xi:include href="xml/nm-setting-ip4-config.xml"/>
     <xi:include href="xml/nm-setting-ip6-config.xml"/>
+    <xi:include href="xml/nm-setting-link.xml"/>
     <xi:include href="xml/nm-setting-loopback.xml"/>
     <xi:include href="xml/nm-setting-macsec.xml"/>
     <xi:include href="xml/nm-setting-macvlan.xml"/>
diff --git a/src/core/devices/nm-device-private.h b/src/core/devices/nm-device-private.h
index 6f3a1c3e42..013bc7fd86 100644
--- a/src/core/devices/nm-device-private.h
+++ b/src/core/devices/nm-device-private.h
@@ -176,4 +176,6 @@ void nm_device_auth_request(NMDevice                      *self,
                             NMManagerDeviceAuthRequestFunc callback,
                             gpointer                       user_data);
 
+void nm_device_link_properties_set(NMDevice *self, gboolean reapply);
+
 #endif /* NM_DEVICE_PRIVATE_H */
diff --git a/src/core/devices/nm-device.c b/src/core/devices/nm-device.c
index c0cdd733d9..300c958743 100644
--- a/src/core/devices/nm-device.c
+++ b/src/core/devices/nm-device.c
@@ -599,6 +599,8 @@ typedef struct _NMDevicePrivate {
 
     bool tc_committed : 1;
 
+    bool link_props_set : 1;
+
     NMDeviceStageState stage1_sriov_state : 3;
 
     char *current_stable_id;
@@ -702,6 +704,10 @@ typedef struct _NMDevicePrivate {
     GHashTable *ip6_saved_properties;
 
     EthtoolState *ethtool_state;
+    struct {
+        NMPlatformLinkProps       props;
+        NMPlatformLinkChangeFlags flags;
+    } link_props_state;
 
     /* master interface for bridge/bond/team slave */
     NMDevice *master;
@@ -2750,6 +2756,151 @@ _ethtool_state_set(NMDevice *self)
         priv->ethtool_state = g_steal_pointer(&ethtool_state);
 }
 
+static NMPlatformLinkChangeFlags
+link_properties_fill_from_setting(NMDevice *self, NMPlatformLinkProps *props)
+{
+    NMPlatformLinkChangeFlags flags = NM_PLATFORM_LINK_CHANGE_NONE;
+    NMSettingLink            *s_link;
+    gint64                    v;
+
+    *props = (NMPlatformLinkProps){};
+
+    s_link = nm_device_get_applied_setting(self, NM_TYPE_SETTING_LINK);
+    if (!s_link)
+        return 0;
+
+    v = nm_setting_link_get_tx_queue_length(s_link);
+    if (v != -1) {
+        props->tx_queue_length = (guint32) v;
+        flags |= NM_PLATFORM_LINK_CHANGE_TX_QUEUE_LENGTH;
+    }
+
+    v = nm_setting_link_get_gso_max_size(s_link);
+    if (v != -1) {
+        props->gso_max_size = (guint32) v;
+        flags |= NM_PLATFORM_LINK_CHANGE_GSO_MAX_SIZE;
+    }
+
+    v = nm_setting_link_get_gso_max_segments(s_link);
+    if (v != -1) {
+        props->gso_max_segments = (guint32) v;
+        flags |= NM_PLATFORM_LINK_CHANGE_GSO_MAX_SEGMENTS;
+    }
+
+    v = nm_setting_link_get_gro_max_size(s_link);
+    if (v != -1) {
+        props->gro_max_size = (guint32) v;
+        flags |= NM_PLATFORM_LINK_CHANGE_GRO_MAX_SIZE;
+    }
+
+    return flags;
+}
+
+void
+nm_device_link_properties_set(NMDevice *self, gboolean reapply)
+{
+    NMDevicePrivate          *priv = NM_DEVICE_GET_PRIVATE(self);
+    NMPlatformLinkProps       props;
+    NMPlatformLinkChangeFlags flags;
+    NMPlatform               *platform;
+    const NMPlatformLink     *plink;
+    int                       ifindex;
+
+    ifindex = nm_device_get_ip_ifindex(self);
+    if (ifindex <= 0)
+        return;
+
+    if (priv->link_props_set && !reapply)
+        return;
+
+    priv->link_props_set = TRUE;
+
+    flags = link_properties_fill_from_setting(self, &props);
+
+    if (flags == NM_PLATFORM_LINK_CHANGE_NONE
+        && priv->link_props_state.flags == NM_PLATFORM_LINK_CHANGE_NONE) {
+        /* Nothing to set now, and nothing was set previously. */
+        return;
+    }
+
+    platform = nm_device_get_platform(self);
+
+    if (priv->link_props_state.flags == NM_PLATFORM_LINK_CHANGE_NONE) {
+        /* It's the first time we reach here. Try to fetch the current
+         * link settings (reset them later). */
+        plink = nm_platform_link_get(platform, ifindex);
+        if (plink) {
+            priv->link_props_state.props = plink->link_props;
+            priv->link_props_state.flags = flags;
+        } else {
+            /* Unknown properties. The "priv->link_props_state.flags" stays unset.
+             * It indicates that "priv->link_props_state.props" is unknown. */
+        }
+
+    } else {
+        /* From a previous call we have some "priv->link_props_state.flags"
+         * flags, which indicates that all link props are cached. Also add
+         * "flags" which are are going to set, to indicate that those flags
+         * will need to be reset later. */
+        priv->link_props_state.flags |= flags;
+    }
+
+#define _RESET(_f, _field)                                                                \
+    if (!NM_FLAGS_HAS(flags, (_f)) && NM_FLAGS_HAS(priv->link_props_state.flags, (_f))) { \
+        props._field = priv->link_props_state.props._field;                               \
+        priv->link_props_state.flags &= ~(_f);                                            \
+        flags |= (_f);                                                                    \
+    }
+
+    /* During reapply, if we previously set some "priv->link_props_state.flags"
+     * but now not anymore (according to "flags"), then we reset the value now.
+     *
+     * We do this by copying the props field from "priv->link_props_state" to
+     * "props", reset the flag in "priv->link_props_state.flags" and set the
+     * flag in "flags" (for changing it). */
+    _RESET(NM_PLATFORM_LINK_CHANGE_TX_QUEUE_LENGTH, tx_queue_length);
+    _RESET(NM_PLATFORM_LINK_CHANGE_GSO_MAX_SIZE, gso_max_size);
+    _RESET(NM_PLATFORM_LINK_CHANGE_GSO_MAX_SEGMENTS, gso_max_segments);
+    _RESET(NM_PLATFORM_LINK_CHANGE_GRO_MAX_SIZE, gro_max_size);
+
+    if (nm_platform_link_change(platform, ifindex, &props, flags)) {
+        _LOGD(LOGD_DEVICE, "link properties successfully set");
+    } else {
+        _LOGW(LOGD_DEVICE, "failure setting link properties");
+    }
+}
+
+static void
+link_properties_reset(NMDevice *self)
+{
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(self);
+    NMPlatform      *platform;
+    int              ifindex;
+
+    if (priv->link_props_state.flags == 0)
+        goto out;
+
+    ifindex = nm_device_get_ip_ifindex(self);
+    if (ifindex <= 0)
+        goto out;
+
+    platform = nm_device_get_platform(self);
+    nm_assert(platform);
+
+    if (nm_platform_link_change(platform,
+                                ifindex,
+                                &priv->link_props_state.props,
+                                priv->link_props_state.flags)) {
+        _LOGD(LOGD_DEVICE, "link properties successfully reset");
+    } else {
+        _LOGW(LOGD_DEVICE, "failure resetting link properties");
+    }
+
+out:
+    priv->link_props_set         = FALSE;
+    priv->link_props_state.flags = 0;
+}
+
 /*****************************************************************************/
 
 gboolean
@@ -9760,10 +9911,12 @@ activate_stage2_device_config(NMDevice *self)
 
     nm_device_state_changed(self, NM_DEVICE_STATE_CONFIG, NM_DEVICE_STATE_REASON_NONE);
 
-    if (!nm_device_sys_iface_state_is_external_or_assume(self))
+    if (!nm_device_sys_iface_state_is_external(self)) {
         _ethtool_state_set(self);
+        nm_device_link_properties_set(self, FALSE);
+    }
 
-    if (!nm_device_sys_iface_state_is_external_or_assume(self)) {
+    if (!nm_device_sys_iface_state_is_external(self)) {
         if (!priv->tc_committed && !tc_commit(self)) {
             _LOGW(LOGD_DEVICE, "failed applying traffic control rules");
             nm_device_state_changed(self,
@@ -12828,7 +12981,8 @@ can_reapply_change(NMDevice   *self,
                      NM_SETTING_USER_SETTING_NAME,
                      NM_SETTING_PROXY_SETTING_NAME,
                      NM_SETTING_IP4_CONFIG_SETTING_NAME,
-                     NM_SETTING_IP6_CONFIG_SETTING_NAME))
+                     NM_SETTING_IP6_CONFIG_SETTING_NAME,
+                     NM_SETTING_LINK_SETTING_NAME))
         return TRUE;
 
     if (nm_streq(setting_name, NM_SETTING_WIRED_SETTING_NAME)) {
@@ -13024,6 +13178,8 @@ check_and_reapply_connection(NMDevice            *self,
      *************************************************************************/
     klass->reapply_connection(self, con_old, con_new);
 
+    nm_device_link_properties_set(self, TRUE);
+
     if (priv->state >= NM_DEVICE_STATE_CONFIG)
         lldp_setup(self, NM_TERNARY_DEFAULT);
 
@@ -15622,6 +15778,7 @@ nm_device_cleanup(NMDevice *self, NMDeviceStateReason reason, CleanupType cleanu
     }
 
     _ethtool_state_reset(self);
+    link_properties_reset(self);
 
     if (priv->promisc_reset != NM_OPTION_BOOL_DEFAULT && ifindex > 0) {
         nm_platform_link_change_flags(nm_device_get_platform(self),
diff --git a/src/core/devices/ovs/nm-device-ovs-interface.c b/src/core/devices/ovs/nm-device-ovs-interface.c
index 711f65cb5b..3ff52c4645 100644
--- a/src/core/devices/ovs/nm-device-ovs-interface.c
+++ b/src/core/devices/ovs/nm-device-ovs-interface.c
@@ -132,6 +132,8 @@ link_changed(NMDevice *device, const NMPlatformLink *pllink)
             nm_device_devip_set_failed(device, AF_INET6, NM_DEVICE_STATE_REASON_CONFIG_FAILED);
             return;
         }
+
+        nm_device_link_properties_set(device, FALSE);
         nm_device_bring_up(device);
 
         nm_device_devip_set_state(device, AF_INET, NM_DEVICE_IP_STATE_PENDING, NULL);
@@ -214,6 +216,7 @@ _set_ip_ifindex_tun(gpointer user_data)
 
     priv->wait_link_is_waiting = FALSE;
     nm_device_set_ip_ifindex(device, priv->wait_link_ifindex);
+    nm_device_link_properties_set(device, FALSE);
 
     nm_device_devip_set_state(device, AF_INET, NM_DEVICE_IP_STATE_PENDING, NULL);
     nm_device_devip_set_state(device, AF_INET6, NM_DEVICE_IP_STATE_PENDING, NULL);
@@ -303,6 +306,7 @@ act_stage3_ip_config(NMDevice *device, int addr_family)
         return;
     }
 
+    nm_device_link_properties_set(device, FALSE);
     nm_device_devip_set_state(device, addr_family, NM_DEVICE_IP_STATE_READY, NULL);
 }
 
diff --git a/src/core/platform/tests/test-link.c b/src/core/platform/tests/test-link.c
index fd341b4c8b..eb351eaa7d 100644
--- a/src/core/platform/tests/test-link.c
+++ b/src/core/platform/tests/test-link.c
@@ -2583,6 +2583,35 @@ test_vlan_set_xgress(void)
 /*****************************************************************************/
 
 static void
+test_link_set_properties(void)
+{
+    const NMPlatformLink     *link;
+    NMPlatformLinkProps       props;
+    NMPlatformLinkChangeFlags flags;
+
+    props = (NMPlatformLinkProps){
+        .tx_queue_length  = 599,
+        .gso_max_size     = 10001,
+        .gso_max_segments = 512,
+    };
+    flags = NM_PLATFORM_LINK_CHANGE_TX_QUEUE_LENGTH | NM_PLATFORM_LINK_CHANGE_GSO_MAX_SIZE
+            | NM_PLATFORM_LINK_CHANGE_GSO_MAX_SEGMENTS;
+
+    link = nmtstp_link_dummy_add(NM_PLATFORM_GET, FALSE, "dummy1");
+    g_assert(nm_platform_link_change(NM_PLATFORM_GET, link->ifindex, &props, flags));
+
+    link = nmtstp_link_get(NM_PLATFORM_GET, link->ifindex, "dummy1");
+    g_assert(link);
+    g_assert_cmpint(link->link_props.tx_queue_length, ==, 599);
+    g_assert_cmpint(link->link_props.gso_max_size, ==, 10001);
+    g_assert_cmpint(link->link_props.gso_max_segments, ==, 512);
+
+    nmtstp_link_delete(NULL, -1, link->ifindex, "dummy1", TRUE);
+}
+
+/*****************************************************************************/
+
+static void
 test_create_many_links_do(guint n_devices)
 {
     gint64                 time, start_time = nm_utils_get_monotonic_timestamp_nsec();
@@ -3948,6 +3977,8 @@ _nmtstp_setup_tests(void)
 
         g_test_add_func("/link/software/vlan/set-xgress", test_vlan_set_xgress);
 
+        g_test_add_func("/link/set-properties", test_link_set_properties);
+
         g_test_add_data_func("/link/create-many-links/20",
                              GUINT_TO_POINTER(20),
                              test_create_many_links);
diff --git a/src/libnm-client-impl/libnm.ver b/src/libnm-client-impl/libnm.ver
index fbaebb13ec..5a89536ab3 100644
--- a/src/libnm-client-impl/libnm.ver
+++ b/src/libnm-client-impl/libnm.ver
@@ -1930,4 +1930,10 @@ libnm_1_44_0 {
 global:
 	nm_setting_gsm_get_initial_eps_apn;
 	nm_setting_gsm_get_initial_eps_config;
+	nm_setting_link_get_gro_max_size;
+	nm_setting_link_get_gso_max_segments;
+	nm_setting_link_get_gso_max_size;
+	nm_setting_link_get_tx_queue_length;
+	nm_setting_link_get_type;
+	nm_setting_link_new;
 } libnm_1_42_0;
diff --git a/src/libnm-client-public/NetworkManager.h b/src/libnm-client-public/NetworkManager.h
index da661db93b..cb5c319f77 100644
--- a/src/libnm-client-public/NetworkManager.h
+++ b/src/libnm-client-public/NetworkManager.h
@@ -44,6 +44,7 @@
 #include "nm-setting-ip6-config.h"
 #include "nm-setting-ip-config.h"
 #include "nm-setting-ip-tunnel.h"
+#include "nm-setting-link.h"
 #include "nm-setting-loopback.h"
 #include "nm-setting-macsec.h"
 #include "nm-setting-macvlan.h"
diff --git a/src/libnm-client-public/nm-autoptr.h b/src/libnm-client-public/nm-autoptr.h
index 9020af1481..fde6cccf32 100644
--- a/src/libnm-client-public/nm-autoptr.h
+++ b/src/libnm-client-public/nm-autoptr.h
@@ -85,6 +85,7 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingIP6Config, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingIPConfig, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingIPTunnel, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingInfiniband, g_object_unref)
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingLink, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingLoopback, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingMacsec, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(NMSettingMacvlan, g_object_unref)
diff --git a/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in b/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in
index 0559c2572f..c4133243ff 100644
--- a/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in
+++ b/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in
@@ -1749,6 +1749,26 @@
                   gprop-type="gchararray"
                   />
     </setting>
+    <setting name="link"
+             gtype="NMSettingLink"
+             >
+        <property name="gro-max-size"
+                  dbus-type="x"
+                  gprop-type="gint64"
+                  />
+        <property name="gso-max-segments"
+                  dbus-type="x"
+                  gprop-type="gint64"
+                  />
+        <property name="gso-max-size"
+                  dbus-type="x"
+                  gprop-type="gint64"
+                  />
+        <property name="tx-queue-length"
+                  dbus-type="x"
+                  gprop-type="gint64"
+                  />
+    </setting>
     <setting name="loopback"
              gtype="NMSettingLoopback"
              >
diff --git a/src/libnm-core-impl/meson.build b/src/libnm-core-impl/meson.build
index 6408ae178a..635b417b7e 100644
--- a/src/libnm-core-impl/meson.build
+++ b/src/libnm-core-impl/meson.build
@@ -24,6 +24,7 @@ libnm_core_settings_sources = files(
   'nm-setting-ip-tunnel.c',
   'nm-setting-ip4-config.c',
   'nm-setting-ip6-config.c',
+  'nm-setting-link.c',
   'nm-setting-loopback.c',
   'nm-setting-macsec.c',
   'nm-setting-macvlan.c',
diff --git a/src/libnm-core-impl/nm-meta-setting-base-impl.c b/src/libnm-core-impl/nm-meta-setting-base-impl.c
index 190826718a..b531ae85a3 100644
--- a/src/libnm-core-impl/nm-meta-setting-base-impl.c
+++ b/src/libnm-core-impl/nm-meta-setting-base-impl.c
@@ -34,6 +34,7 @@
 #include "nm-setting-ip-tunnel.h"
 #include "nm-setting-ip4-config.h"
 #include "nm-setting-ip6-config.h"
+#include "nm-setting-link.h"
 #include "nm-setting-loopback.h"
 #include "nm-setting-macsec.h"
 #include "nm-setting-macvlan.h"
@@ -362,6 +363,13 @@ const NMMetaSettingInfo nm_meta_setting_infos[] = {
             .setting_name      = NM_SETTING_IP_TUNNEL_SETTING_NAME,
             .get_setting_gtype = nm_setting_ip_tunnel_get_type,
         },
+    [NM_META_SETTING_TYPE_LINK] =
+        {
+            .meta_type         = NM_META_SETTING_TYPE_LINK,
+            .setting_priority  = NM_SETTING_PRIORITY_AUX,
+            .setting_name      = NM_SETTING_LINK_SETTING_NAME,
+            .get_setting_gtype = nm_setting_link_get_type,
+        },
     [NM_META_SETTING_TYPE_LOOPBACK] =
         {
             .meta_type         = NM_META_SETTING_TYPE_LOOPBACK,
@@ -660,6 +668,7 @@ const NMMetaSettingType nm_meta_setting_types_by_priority[] = {
     NM_META_SETTING_TYPE_BOND_PORT,
     NM_META_SETTING_TYPE_BRIDGE_PORT,
     NM_META_SETTING_TYPE_ETHTOOL,
+    NM_META_SETTING_TYPE_LINK,
     NM_META_SETTING_TYPE_MATCH,
     NM_META_SETTING_TYPE_OVS_EXTERNAL_IDS,
     NM_META_SETTING_TYPE_OVS_OTHER_CONFIG,
diff --git a/src/libnm-core-impl/nm-setting-link.c b/src/libnm-core-impl/nm-setting-link.c
new file mode 100644
index 0000000000..29d56d67eb
--- /dev/null
+++ b/src/libnm-core-impl/nm-setting-link.c
@@ -0,0 +1,241 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2023 Red Hat, Inc.
+ */
+
+#include "libnm-core-impl/nm-default-libnm-core.h"
+
+#include "nm-setting-link.h"
+
+#include "nm-setting-private.h"
+#include "nm-utils-private.h"
+
+/**
+ * SECTION:nm-setting-link
+ * @short_description: Contains properties related to the link
+ * @include: nm-setting-link.h
+ **/
+
+/*****************************************************************************/
+
+NM_GOBJECT_PROPERTIES_DEFINE(NMSettingLink,
+                             PROP_TX_QUEUE_LENGTH,
+                             PROP_GSO_MAX_SIZE,
+                             PROP_GSO_MAX_SEGMENTS,
+                             PROP_GRO_MAX_SIZE, );
+
+/**
+ * NMSettingLink:
+ *
+ * Link settings
+ *
+ * Since: 1.44
+ */
+struct _NMSettingLink {
+    NMSetting parent;
+    gint64    tx_queue_length;
+    gint64    gso_max_size;
+    gint64    gso_max_segments;
+    gint64    gro_max_size;
+};
+
+struct _NMSettingLinkClass {
+    NMSettingClass parent;
+};
+
+G_DEFINE_TYPE(NMSettingLink, nm_setting_link, NM_TYPE_SETTING)
+
+/**
+ * nm_setting_link_get_tx_queue_length:
+ * @setting: the #NMSettingLink
+ *
+ * Returns the value contained in the #NMSettingLink:tx-queue-length
+ * property.
+ *
+ * Returns: the 'tx-queue-length' property value
+ *
+ * Since: 1.44
+ **/
+gint64
+nm_setting_link_get_tx_queue_length(NMSettingLink *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_LINK(setting), 0);
+
+    return setting->tx_queue_length;
+}
+
+/**
+ * nm_setting_link_get_gso_max_size:
+ * @setting: the #NMSettingLink
+ *
+ * Returns the value contained in the #NMSettingLink:gso-max-size
+ * property.
+ *
+ * Returns: the 'gso-max-size' property value
+ *
+ * Since: 1.44
+ **/
+gint64
+nm_setting_link_get_gso_max_size(NMSettingLink *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_LINK(setting), 0);
+
+    return setting->gso_max_size;
+}
+
+/**
+ * nm_setting_link_get_gso_max_segments:
+ * @setting: the #NMSettingLink
+ *
+ * Returns the value contained in the #NMSettingLink:gso-max-segments
+ * property.
+ *
+ * Returns: the 'gso-max-segments' property value
+ *
+ * Since: 1.44
+ **/
+gint64
+nm_setting_link_get_gso_max_segments(NMSettingLink *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_LINK(setting), 0);
+
+    return setting->gso_max_segments;
+}
+
+/**
+ * nm_setting_link_get_gro_max_size:
+ * @setting: the #NMSettingLink
+ *
+ * Returns the value contained in the #NMSettingLink:gro-max-size
+ * property.
+ *
+ * Returns: the 'gro-max-size' property value
+ *
+ * Since: 1.44
+ **/
+gint64
+nm_setting_link_get_gro_max_size(NMSettingLink *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_LINK(setting), 0);
+
+    return setting->gro_max_size;
+}
+
+/*****************************************************************************/
+
+static void
+nm_setting_link_init(NMSettingLink *setting)
+{}
+
+/**
+ * nm_setting_link_new:
+ *
+ * Creates a new #NMSettingLink object with default values.
+ *
+ * Returns: (transfer full): the new empty #NMSettingLink object
+ *
+ * Since: 1.44
+ **/
+NMSetting *
+nm_setting_link_new(void)
+{
+    return g_object_new(NM_TYPE_SETTING_LINK, NULL);
+}
+
+static void
+nm_setting_link_class_init(NMSettingLinkClass *klass)
+{
+    GObjectClass   *object_class        = G_OBJECT_CLASS(klass);
+    NMSettingClass *setting_class       = NM_SETTING_CLASS(klass);
+    GArray         *properties_override = _nm_sett_info_property_override_create_array();
+
+    object_class->get_property = _nm_setting_property_get_property_direct;
+    object_class->set_property = _nm_setting_property_set_property_direct;
+
+    /**
+     * NMSettingLink:tx-queue-length
+     *
+     * The size of the transmit queue for the device, in number of packets. The value
+     * must be between 0 and 4294967295. When set to -1, the existing value is preserved.
+     *
+     * Since: 1.44
+     **/
+    _nm_setting_property_define_direct_int64(properties_override,
+                                             obj_properties,
+                                             NM_SETTING_LINK_TX_QUEUE_LENGTH,
+                                             PROP_TX_QUEUE_LENGTH,
+                                             -1,
+                                             G_MAXUINT32,
+                                             -1,
+                                             NM_SETTING_PARAM_NONE,
+                                             NMSettingLink,
+                                             tx_queue_length);
+
+    /**
+     * NMSettingLink:gso-max-size
+     *
+     * The maximum size of a Generic Segment Offload packet the device should accept.
+     * The value must be between 0 and 4294967295. When set to -1, the existing value
+     * is preserved.
+     *
+     * Since: 1.44
+     **/
+    _nm_setting_property_define_direct_int64(properties_override,
+                                             obj_properties,
+                                             NM_SETTING_LINK_GSO_MAX_SIZE,
+                                             PROP_GSO_MAX_SIZE,
+                                             -1,
+                                             G_MAXUINT32,
+                                             -1,
+                                             NM_SETTING_PARAM_NONE,
+                                             NMSettingLink,
+                                             gso_max_size);
+
+    /**
+     * NMSettingLink:gso-max-segments
+     *
+     * The maximum segments of a Generic Segment Offload packet the device should accept.
+     * The value must be between 0 and 4294967295. When set to -1, the existing value
+     * is preserved.
+     *
+     * Since: 1.44
+     **/
+    _nm_setting_property_define_direct_int64(properties_override,
+                                             obj_properties,
+                                             NM_SETTING_LINK_GSO_MAX_SEGMENTS,
+                                             PROP_GSO_MAX_SEGMENTS,
+                                             -1,
+                                             G_MAXUINT32,
+                                             -1,
+                                             NM_SETTING_PARAM_NONE,
+                                             NMSettingLink,
+                                             gso_max_segments);
+
+    /**
+     * NMSettingLink:gro-max-size
+     *
+     * The maximum size of a packet built by the Generic Receive Offload stack for
+     * this device. The value must be between 0 and 4294967295. When set to -1, the
+     * existing value is preserved.
+     *
+     * Since: 1.44
+     **/
+    _nm_setting_property_define_direct_int64(properties_override,
+                                             obj_properties,
+                                             NM_SETTING_LINK_GRO_MAX_SIZE,
+                                             PROP_GRO_MAX_SIZE,
+                                             -1,
+                                             G_MAXUINT32,
+                                             -1,
+                                             NM_SETTING_PARAM_NONE,
+                                             NMSettingLink,
+                                             gro_max_size);
+
+    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);
+
+    _nm_setting_class_commit(setting_class,
+                             NM_META_SETTING_TYPE_LINK,
+                             NULL,
+                             properties_override,
+                             0);
+}
diff --git a/src/libnm-core-impl/tests/test-setting.c b/src/libnm-core-impl/tests/test-setting.c
index 09e0fc70ee..46e6818125 100644
--- a/src/libnm-core-impl/tests/test-setting.c
+++ b/src/libnm-core-impl/tests/test-setting.c
@@ -121,8 +121,6 @@ test_nm_meta_setting_types_by_priority(void)
     G_STATIC_ASSERT_EXPR(_NM_META_SETTING_TYPE_NUM
                          == G_N_ELEMENTS(nm_meta_setting_types_by_priority));
 
-    G_STATIC_ASSERT_EXPR(_NM_META_SETTING_TYPE_NUM == 54);
-
     arr = g_ptr_array_new_with_free_func(g_object_unref);
 
     for (i = 0; i < _NM_META_SETTING_TYPE_NUM; i++) {
diff --git a/src/libnm-core-intern/nm-core-internal.h b/src/libnm-core-intern/nm-core-internal.h
index 71bbb0d499..3a56012323 100644
--- a/src/libnm-core-intern/nm-core-internal.h
+++ b/src/libnm-core-intern/nm-core-internal.h
@@ -43,6 +43,7 @@
 #include "nm-setting-ip-tunnel.h"
 #include "nm-setting-ip4-config.h"
 #include "nm-setting-ip6-config.h"
+#include "nm-setting-link.h"
 #include "nm-setting-loopback.h"
 #include "nm-setting-macsec.h"
 #include "nm-setting-macvlan.h"
diff --git a/src/libnm-core-intern/nm-meta-setting-base-impl.h b/src/libnm-core-intern/nm-meta-setting-base-impl.h
index 0c2def90cd..c6d1c2fcb6 100644
--- a/src/libnm-core-intern/nm-meta-setting-base-impl.h
+++ b/src/libnm-core-intern/nm-meta-setting-base-impl.h
@@ -127,6 +127,7 @@ typedef enum _nm_packed {
     NM_META_SETTING_TYPE_IP_TUNNEL,
     NM_META_SETTING_TYPE_IP4_CONFIG,
     NM_META_SETTING_TYPE_IP6_CONFIG,
+    NM_META_SETTING_TYPE_LINK,
     NM_META_SETTING_TYPE_LOOPBACK,
     NM_META_SETTING_TYPE_MACSEC,
     NM_META_SETTING_TYPE_MACVLAN,
diff --git a/src/libnm-core-public/meson.build b/src/libnm-core-public/meson.build
index c54071303c..d135dbff94 100644
--- a/src/libnm-core-public/meson.build
+++ b/src/libnm-core-public/meson.build
@@ -29,6 +29,7 @@ libnm_core_headers = files(
   'nm-setting-ip-tunnel.h',
   'nm-setting-ip4-config.h',
   'nm-setting-ip6-config.h',
+  'nm-setting-link.h',
   'nm-setting-loopback.h',
   'nm-setting-macsec.h',
   'nm-setting-macvlan.h',
diff --git a/src/libnm-core-public/nm-core-types.h b/src/libnm-core-public/nm-core-types.h
index f285a0f6f1..758733a1cc 100644
--- a/src/libnm-core-public/nm-core-types.h
+++ b/src/libnm-core-public/nm-core-types.h
@@ -35,6 +35,7 @@ typedef struct _NMSettingIP6Config        NMSettingIP6Config;
 typedef struct _NMSettingIPConfig         NMSettingIPConfig;
 typedef struct _NMSettingIPTunnel         NMSettingIPTunnel;
 typedef struct _NMSettingInfiniband       NMSettingInfiniband;
+typedef struct _NMSettingLink             NMSettingLink;
 typedef struct _NMSettingLoopback         NMSettingLoopback;
 typedef struct _NMSettingMacsec           NMSettingMacsec;
 typedef struct _NMSettingMacvlan          NMSettingMacvlan;
diff --git a/src/libnm-core-public/nm-setting-link.h b/src/libnm-core-public/nm-setting-link.h
new file mode 100644
index 0000000000..98973ff568
--- /dev/null
+++ b/src/libnm-core-public/nm-setting-link.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2020 Red Hat, Inc.
+ */
+
+#ifndef __NM_SETTING_LINK_H__
+#define __NM_SETTING_LINK_H__
+
+#if !defined(__NETWORKMANAGER_H_INSIDE__) && !defined(NETWORKMANAGER_COMPILATION)
+#error "Only <NetworkManager.h> can be included directly."
+#endif
+
+#include "nm-setting.h"
+
+G_BEGIN_DECLS
+
+#define NM_TYPE_SETTING_LINK (nm_setting_link_get_type())
+#define NM_SETTING_LINK(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_SETTING_LINK, NMSettingLink))
+#define NM_SETTING_LINK_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_SETTING_LINK, NMSettingLinkClass))
+#define NM_IS_SETTING_LINK(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_SETTING_LINK))
+#define NM_IS_SETTING_LINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_SETTING_LINK))
+#define NM_SETTING_LINK_GET_CLASS(obj) \
+    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_SETTING_LINK, NMSettingLinkClass))
+
+#define NM_SETTING_LINK_SETTING_NAME "link"
+
+#define NM_SETTING_LINK_TX_QUEUE_LENGTH  "tx-queue-length"
+#define NM_SETTING_LINK_GSO_MAX_SIZE     "gso-max-size"
+#define NM_SETTING_LINK_GSO_MAX_SEGMENTS "gso-max-segments"
+#define NM_SETTING_LINK_GRO_MAX_SIZE     "gro-max-size"
+
+typedef struct _NMSettingLinkClass NMSettingLinkClass;
+
+NM_AVAILABLE_IN_1_44
+GType nm_setting_link_get_type(void);
+NM_AVAILABLE_IN_1_44
+NMSetting *nm_setting_link_new(void);
+
+NM_AVAILABLE_IN_1_44
+gint64 nm_setting_link_get_tx_queue_length(NMSettingLink *setting);
+NM_AVAILABLE_IN_1_44
+gint64 nm_setting_link_get_gso_max_size(NMSettingLink *setting);
+NM_AVAILABLE_IN_1_44
+gint64 nm_setting_link_get_gso_max_segments(NMSettingLink *setting);
+NM_AVAILABLE_IN_1_44
+gint64 nm_setting_link_get_gro_max_size(NMSettingLink *setting);
+
+G_END_DECLS
+
+#endif /* __NM_SETTING_LINK_H__ */
diff --git a/src/libnm-platform/nm-linux-platform.c b/src/libnm-platform/nm-linux-platform.c
index 78d6e704bb..94e92a9bec 100644
--- a/src/libnm-platform/nm-linux-platform.c
+++ b/src/libnm-platform/nm-linux-platform.c
@@ -115,7 +115,9 @@ typedef enum _nm_packed {
 #define IFLA_CARRIER       33
 #define IFLA_PHYS_PORT_ID  34
 #define IFLA_LINK_NETNSID  37
-#define __IFLA_MAX         39
+#define IFLA_GSO_MAX_SEGS  40
+#define IFLA_GSO_MAX_SIZE  41
+#define IFLA_GRO_MAX_SIZE  58
 
 #define IFLA_INET6_TOKEN         7
 #define IFLA_INET6_ADDR_GEN_MODE 8
@@ -3260,6 +3262,9 @@ _new_from_nl_link(NMPlatform            *platform,
         [IFLA_IFNAME]        = {.type = NLA_STRING, .maxlen = IFNAMSIZ},
         [IFLA_MTU]           = {.type = NLA_U32},
         [IFLA_TXQLEN]        = {.type = NLA_U32},
+        [IFLA_GSO_MAX_SIZE]  = {.type = NLA_U32},
+        [IFLA_GSO_MAX_SEGS]  = {.type = NLA_U32},
+        [IFLA_GRO_MAX_SIZE]  = {.type = NLA_U32},
         [IFLA_LINK]          = {.type = NLA_U32},
         [IFLA_WEIGHT]        = {.type = NLA_U32},
         [IFLA_MASTER]        = {.type = NLA_U32},
@@ -3359,6 +3364,15 @@ _new_from_nl_link(NMPlatform            *platform,
         nl_info_data = li[IFLA_INFO_DATA];
     }
 
+    if (tb[IFLA_TXQLEN])
+        obj->link.link_props.tx_queue_length = nla_get_u32(tb[IFLA_TXQLEN]);
+    if (tb[IFLA_GSO_MAX_SIZE])
+        obj->link.link_props.gso_max_size = nla_get_u32(tb[IFLA_GSO_MAX_SIZE]);
+    if (tb[IFLA_GSO_MAX_SEGS])
+        obj->link.link_props.gso_max_segments = nla_get_u32(tb[IFLA_GSO_MAX_SEGS]);
+    if (tb[IFLA_GRO_MAX_SIZE])
+        obj->link.link_props.gro_max_size = nla_get_u32(tb[IFLA_GRO_MAX_SIZE]);
+
     if (tb[IFLA_STATS64]) {
         const char *stats = nla_data(tb[IFLA_STATS64]);
 
@@ -8270,7 +8284,7 @@ out:
 }
 
 static int
-link_change(NMPlatform *platform, NMLinkType type, int ifindex, gconstpointer extra_data)
+link_change_extra(NMPlatform *platform, NMLinkType type, int ifindex, gconstpointer extra_data)
 {
     nm_auto_nlmsg struct nl_msg *nlmsg = NULL;
 
@@ -8348,6 +8362,32 @@ link_delete(NMPlatform *platform, int ifindex)
 }
 
 static gboolean
+link_change(NMPlatform               *platform,
+            int                       ifindex,
+            NMPlatformLinkProps      *props,
+            NMPlatformLinkChangeFlags flags)
+{
+    nm_auto_nlmsg struct nl_msg *nlmsg = NULL;
+
+    nlmsg = _nl_msg_new_link(RTM_NEWLINK, 0, ifindex, NULL);
+    if (!nlmsg)
+        return FALSE;
+
+    if (flags & NM_PLATFORM_LINK_CHANGE_TX_QUEUE_LENGTH)
+        NLA_PUT_U32(nlmsg, IFLA_TXQLEN, props->tx_queue_length);
+    if (flags & NM_PLATFORM_LINK_CHANGE_GSO_MAX_SIZE)
+        NLA_PUT_U32(nlmsg, IFLA_GSO_MAX_SIZE, props->gso_max_size);
+    if (flags & NM_PLATFORM_LINK_CHANGE_GSO_MAX_SEGMENTS)
+        NLA_PUT_U32(nlmsg, IFLA_GSO_MAX_SEGS, props->gso_max_segments);
+    if (flags & NM_PLATFORM_LINK_CHANGE_GRO_MAX_SIZE)
+        NLA_PUT_U32(nlmsg, IFLA_GRO_MAX_SIZE, props->gro_max_size);
+
+    return do_change_link(platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == 0;
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+static gboolean
 link_refresh(NMPlatform *platform, int ifindex)
 {
     do_request_link(platform, ifindex, NULL);
@@ -11166,9 +11206,11 @@ nm_linux_platform_class_init(NMLinuxPlatformClass *klass)
     platform_class->sysctl_set_async = sysctl_set_async;
     platform_class->sysctl_get       = sysctl_get;
 
-    platform_class->link_add    = link_add;
+    platform_class->link_add          = link_add;
+    platform_class->link_change_extra = link_change_extra;
+    platform_class->link_delete       = link_delete;
+
     platform_class->link_change = link_change;
-    platform_class->link_delete = link_delete;
 
     platform_class->link_refresh = link_refresh;
 
diff --git a/src/libnm-platform/nm-platform.c b/src/libnm-platform/nm-platform.c
index 64d0fd8efd..06c1f4a741 100644
--- a/src/libnm-platform/nm-platform.c
+++ b/src/libnm-platform/nm-platform.c
@@ -1406,7 +1406,10 @@ nm_platform_link_add(NMPlatform            *self,
 }
 
 int
-nm_platform_link_change(NMPlatform *self, NMLinkType type, int ifindex, gconstpointer extra_data)
+nm_platform_link_change_extra(NMPlatform   *self,
+                              NMLinkType    type,
+                              int           ifindex,
+                              gconstpointer extra_data)
 {
     char        buf[512];
     const char *name = nm_platform_link_get_name(self, ifindex);
@@ -1447,7 +1450,7 @@ nm_platform_link_change(NMPlatform *self, NMLinkType type, int ifindex, gconstpo
                buf;
            }));
 
-    return klass->link_change(self, type, ifindex, extra_data);
+    return klass->link_change_extra(self, type, ifindex, extra_data);
 }
 
 /**
@@ -2130,6 +2133,40 @@ nm_platform_link_set_name(NMPlatform *self, int ifindex, const char *name)
     return klass->link_set_name(self, ifindex, name);
 }
 
+gboolean
+nm_platform_link_change(NMPlatform               *self,
+                        int                       ifindex,
+                        NMPlatformLinkProps      *props,
+                        NMPlatformLinkChangeFlags flags)
+{
+    _CHECK_SELF(self, klass, FALSE);
+
+    g_return_val_if_fail(ifindex >= 0, FALSE);
+
+    if (flags == 0)
+        return TRUE;
+
+    if (_LOGD_ENABLED()) {
+        nm_auto_free_gstring GString *str = g_string_new("");
+
+        if (flags & NM_PLATFORM_LINK_CHANGE_TX_QUEUE_LENGTH)
+            g_string_append_printf(str, "tx-queue-length %u ", props->tx_queue_length);
+        if (flags & NM_PLATFORM_LINK_CHANGE_GSO_MAX_SIZE)
+            g_string_append_printf(str, "gso_max_size %u ", props->gso_max_size);
+        if (flags & NM_PLATFORM_LINK_CHANGE_GSO_MAX_SEGMENTS)
+            g_string_append_printf(str, "gso_max_segments %u ", props->gso_max_segments);
+        if (flags & NM_PLATFORM_LINK_CHANGE_GRO_MAX_SIZE)
+            g_string_append_printf(str, "gro_max_size %u ", props->gro_max_size);
+
+        if (str->len > 0 && str->str[str->len - 1] == ' ')
+            g_string_truncate(str, str->len - 1);
+
+        _LOG3D("link: change: %s", str->str);
+    }
+
+    return klass->link_change(self, ifindex, props, flags);
+}
+
 /**
  * nm_platform_link_get_physical_port_id:
  * @self: platform instance
@@ -6015,6 +6052,10 @@ nm_platform_link_to_string(const NMPlatformLink *link, char *buf, gsize len)
         "%s%s"    /* l_broadcast */
         "%s%s"    /* inet6_token */
         "%s%s"    /* driver */
+        " tx-queue-len %u"
+        " gso-max-size %u"
+        " gso-max-segs %u"
+        " gro-max-size %u"
         " rx:%" G_GUINT64_FORMAT ",%" G_GUINT64_FORMAT " tx:%" G_GUINT64_FORMAT
         ",%" G_GUINT64_FORMAT,
         link->ifindex,
@@ -6047,6 +6088,10 @@ nm_platform_link_to_string(const NMPlatformLink *link, char *buf, gsize len)
             : "",
         link->driver ? " driver " : "",
         link->driver ?: "",
+        link->link_props.tx_queue_length,
+        link->link_props.gso_max_size,
+        link->link_props.gso_max_segments,
+        link->link_props.gro_max_size,
         link->rx_packets,
         link->rx_bytes,
         link->tx_packets,
@@ -7879,6 +7924,10 @@ nm_platform_link_hash_update(const NMPlatformLink *obj, NMHashState *h)
                         obj->arptype,
                         obj->inet6_addr_gen_mode_inv,
                         obj->inet6_token,
+                        obj->link_props.tx_queue_length,
+                        obj->link_props.gso_max_size,
+                        obj->link_props.gso_max_segments,
+                        obj->link_props.gro_max_size,
                         obj->rx_packets,
                         obj->rx_bytes,
                         obj->tx_packets,
@@ -7926,6 +7975,10 @@ nm_platform_link_cmp(const NMPlatformLink *a, const NMPlatformLink *b)
     if (a->l_broadcast.len)
         NM_CMP_FIELD_MEMCMP_LEN(a, b, l_broadcast.data, a->l_broadcast.len);
     NM_CMP_FIELD_MEMCMP(a, b, inet6_token);
+    NM_CMP_FIELD(a, b, link_props.tx_queue_length);
+    NM_CMP_FIELD(a, b, link_props.gso_max_size);
+    NM_CMP_FIELD(a, b, link_props.gso_max_segments);
+    NM_CMP_FIELD(a, b, link_props.gro_max_size);
     NM_CMP_FIELD(a, b, rx_packets);
     NM_CMP_FIELD(a, b, rx_bytes);
     NM_CMP_FIELD(a, b, tx_packets);
diff --git a/src/libnm-platform/nm-platform.h b/src/libnm-platform/nm-platform.h
index 447ef3aa8f..d816513cd0 100644
--- a/src/libnm-platform/nm-platform.h
+++ b/src/libnm-platform/nm-platform.h
@@ -150,6 +150,21 @@ GBytes       *nmp_link_address_get_as_bytes(const NMPLinkAddress *addr);
 
 #define NM_PLATFORM_LINK_OTHER_NETNS (-1)
 
+typedef struct {
+    guint32 tx_queue_length;
+    guint32 gso_max_size;
+    guint32 gso_max_segments;
+    guint32 gro_max_size;
+} NMPlatformLinkProps;
+
+typedef enum {
+    NM_PLATFORM_LINK_CHANGE_NONE             = 0,
+    NM_PLATFORM_LINK_CHANGE_TX_QUEUE_LENGTH  = (1 << 0),
+    NM_PLATFORM_LINK_CHANGE_GSO_MAX_SIZE     = (1 << 1),
+    NM_PLATFORM_LINK_CHANGE_GSO_MAX_SEGMENTS = (1 << 2),
+    NM_PLATFORM_LINK_CHANGE_GRO_MAX_SIZE     = (1 << 3),
+} NMPlatformLinkChangeFlags;
+
 struct _NMPlatformObjWithIfindex {
     __NMPlatformObjWithIfindex_COMMON;
 } _nm_alignas(NMPlatformObject);
@@ -204,6 +219,8 @@ struct _NMPlatformLink {
     guint64 tx_packets;
     guint64 tx_bytes;
 
+    NMPlatformLinkProps link_props;
+
     /* @connected is mostly identical to (@n_ifi_flags & IFF_UP). Except for bridge/bond masters,
      * where we coerce the link as disconnect if it has no slaves. */
     bool connected : 1;
@@ -1093,9 +1110,14 @@ typedef struct {
                     guint32                mtu,
                     gconstpointer          extra_data,
                     const NMPlatformLink **out_link);
-
-    int (*link_change)(NMPlatform *self, NMLinkType type, int ifindex, gconstpointer extra_data);
-
+    int (*link_change_extra)(NMPlatform   *self,
+                             NMLinkType    type,
+                             int           ifindex,
+                             gconstpointer extra_data);
+    gboolean (*link_change)(NMPlatform               *self,
+                            int                       ifindex,
+                            NMPlatformLinkProps      *props,
+                            NMPlatformLinkChangeFlags flags);
     gboolean (*link_delete)(NMPlatform *self, int ifindex);
     gboolean (*link_refresh)(NMPlatform *self, int ifindex);
     gboolean (*link_set_netns)(NMPlatform *self, int ifindex, int netns_fd);
@@ -1603,8 +1625,10 @@ int nm_platform_link_add(NMPlatform            *self,
                          gconstpointer          extra_data,
                          const NMPlatformLink **out_link);
 
-int
-nm_platform_link_change(NMPlatform *self, NMLinkType type, int ifindex, gconstpointer extra_data);
+int nm_platform_link_change_extra(NMPlatform   *self,
+                                  NMLinkType    type,
+                                  int           ifindex,
+                                  gconstpointer extra_data);
 
 static inline int
 nm_platform_link_veth_add(NMPlatform            *self,
@@ -1644,13 +1668,13 @@ nm_platform_link_bridge_add(NMPlatform                *self,
 static inline int
 nm_platform_link_bridge_change(NMPlatform *self, int ifindex, const NMPlatformLnkBridge *props)
 {
-    return nm_platform_link_change(self, NM_LINK_TYPE_BRIDGE, ifindex, props);
+    return nm_platform_link_change_extra(self, NM_LINK_TYPE_BRIDGE, ifindex, props);
 }
 
 static inline int
 nm_platform_link_bond_change(NMPlatform *self, int ifindex, const NMPlatformLnkBond *props)
 {
-    return nm_platform_link_change(self, NM_LINK_TYPE_BOND, ifindex, props);
+    return nm_platform_link_change_extra(self, NM_LINK_TYPE_BOND, ifindex, props);
 }
 
 static inline int
@@ -1927,6 +1951,11 @@ nm_platform_link_change_flags(NMPlatform *self, int ifindex, unsigned value, gbo
     return nm_platform_link_change_flags_full(self, ifindex, value, set ? value : 0u);
 }
 
+gboolean nm_platform_link_change(NMPlatform               *self,
+                                 int                       ifindex,
+                                 NMPlatformLinkProps      *props,
+                                 NMPlatformLinkChangeFlags flags);
+
 gboolean    nm_platform_link_get_udev_property(NMPlatform  *self,
                                                int          ifindex,
                                                const char  *name,
diff --git a/src/libnmc-setting/nm-meta-setting-base-impl.c b/src/libnmc-setting/nm-meta-setting-base-impl.c
index 190826718a..b531ae85a3 100644
--- a/src/libnmc-setting/nm-meta-setting-base-impl.c
+++ b/src/libnmc-setting/nm-meta-setting-base-impl.c
@@ -34,6 +34,7 @@
 #include "nm-setting-ip-tunnel.h"
 #include "nm-setting-ip4-config.h"
 #include "nm-setting-ip6-config.h"
+#include "nm-setting-link.h"
 #include "nm-setting-loopback.h"
 #include "nm-setting-macsec.h"
 #include "nm-setting-macvlan.h"
@@ -362,6 +363,13 @@ const NMMetaSettingInfo nm_meta_setting_infos[] = {
             .setting_name      = NM_SETTING_IP_TUNNEL_SETTING_NAME,
             .get_setting_gtype = nm_setting_ip_tunnel_get_type,
         },
+    [NM_META_SETTING_TYPE_LINK] =
+        {
+            .meta_type         = NM_META_SETTING_TYPE_LINK,
+            .setting_priority  = NM_SETTING_PRIORITY_AUX,
+            .setting_name      = NM_SETTING_LINK_SETTING_NAME,
+            .get_setting_gtype = nm_setting_link_get_type,
+        },
     [NM_META_SETTING_TYPE_LOOPBACK] =
         {
             .meta_type         = NM_META_SETTING_TYPE_LOOPBACK,
@@ -660,6 +668,7 @@ const NMMetaSettingType nm_meta_setting_types_by_priority[] = {
     NM_META_SETTING_TYPE_BOND_PORT,
     NM_META_SETTING_TYPE_BRIDGE_PORT,
     NM_META_SETTING_TYPE_ETHTOOL,
+    NM_META_SETTING_TYPE_LINK,
     NM_META_SETTING_TYPE_MATCH,
     NM_META_SETTING_TYPE_OVS_EXTERNAL_IDS,
     NM_META_SETTING_TYPE_OVS_OTHER_CONFIG,
diff --git a/src/libnmc-setting/nm-meta-setting-base-impl.h b/src/libnmc-setting/nm-meta-setting-base-impl.h
index 0c2def90cd..c6d1c2fcb6 100644
--- a/src/libnmc-setting/nm-meta-setting-base-impl.h
+++ b/src/libnmc-setting/nm-meta-setting-base-impl.h
@@ -127,6 +127,7 @@ typedef enum _nm_packed {
     NM_META_SETTING_TYPE_IP_TUNNEL,
     NM_META_SETTING_TYPE_IP4_CONFIG,
     NM_META_SETTING_TYPE_IP6_CONFIG,
+    NM_META_SETTING_TYPE_LINK,
     NM_META_SETTING_TYPE_LOOPBACK,
     NM_META_SETTING_TYPE_MACSEC,
     NM_META_SETTING_TYPE_MACVLAN,
diff --git a/src/libnmc-setting/nm-meta-setting-desc.c b/src/libnmc-setting/nm-meta-setting-desc.c
index 46bc818fa5..60a2cfd402 100644
--- a/src/libnmc-setting/nm-meta-setting-desc.c
+++ b/src/libnmc-setting/nm-meta-setting-desc.c
@@ -6649,6 +6649,56 @@ static const NMMetaPropertyInfo *const property_infos_LOOPBACK[] = {
 };
 
 #undef  _CURRENT_NM_META_SETTING_TYPE
+#define _CURRENT_NM_META_SETTING_TYPE NM_META_SETTING_TYPE_LINK
+static const NMMetaPropertyInfo *const property_infos_LINK[] = {
+    PROPERTY_INFO_WITH_DESC (NM_SETTING_LINK_GSO_MAX_SEGMENTS,
+        .property_type =                &_pt_gobject_int,
+        .property_typ_data = DEFINE_PROPERTY_TYP_DATA_SUBTYPE (gobject_int,
+            .value_infos =              INT_VALUE_INFOS (
+                {
+                    .value.i64 = -1,
+                    .nick = "default",
+                },
+            ),
+        ),
+    ),
+    PROPERTY_INFO_WITH_DESC (NM_SETTING_LINK_GSO_MAX_SIZE,
+        .property_type =                &_pt_gobject_int,
+        .property_typ_data = DEFINE_PROPERTY_TYP_DATA_SUBTYPE (gobject_int,
+            .value_infos =              INT_VALUE_INFOS (
+                {
+                    .value.i64 = -1,
+                    .nick = "default",
+                },
+            ),
+        ),
+    ),
+    PROPERTY_INFO_WITH_DESC (NM_SETTING_LINK_GRO_MAX_SIZE,
+        .property_type =                &_pt_gobject_int,
+        .property_typ_data = DEFINE_PROPERTY_TYP_DATA_SUBTYPE (gobject_int,
+            .value_infos =              INT_VALUE_INFOS (
+                {
+                    .value.i64 = -1,
+                    .nick = "default",
+                },
+            ),
+        ),
+    ),
+    PROPERTY_INFO_WITH_DESC (NM_SETTING_LINK_TX_QUEUE_LENGTH,
+        .property_type =                &_pt_gobject_int,
+        .property_typ_data = DEFINE_PROPERTY_TYP_DATA_SUBTYPE (gobject_int,
+            .value_infos =              INT_VALUE_INFOS (
+                {
+                    .value.i64 = -1,
+                    .nick = "default",
+                },
+            ),
+        ),
+    ),
+    NULL
+};
+
+#undef  _CURRENT_NM_META_SETTING_TYPE
 #define _CURRENT_NM_META_SETTING_TYPE NM_META_SETTING_TYPE_MACSEC
 static const NMMetaPropertyInfo *const property_infos_MACSEC[] = {
     PROPERTY_INFO_WITH_DESC (NM_SETTING_MACSEC_PARENT,
@@ -8427,6 +8477,7 @@ _setting_init_fcn_wireless (ARGS_SETTING_INIT_FCN)
 #define SETTING_PRETTY_NAME_IP4_CONFIG          N_("IPv4 protocol")
 #define SETTING_PRETTY_NAME_IP6_CONFIG          N_("IPv6 protocol")
 #define SETTING_PRETTY_NAME_IP_TUNNEL           N_("IP-tunnel settings")
+#define SETTING_PRETTY_NAME_LINK                N_("Link settings")
 #define SETTING_PRETTY_NAME_LOOPBACK            N_("Loopback settings")
 #define SETTING_PRETTY_NAME_MACSEC              N_("MACsec connection")
 #define SETTING_PRETTY_NAME_MACVLAN             N_("macvlan connection")
@@ -8588,6 +8639,7 @@ const NMMetaSettingInfoEditor nm_meta_setting_infos_editor[] = {
             NM_META_SETTING_VALID_PART_ITEM (ETHTOOL,               FALSE),
         ),
     ),
+    SETTING_INFO (LINK),
     SETTING_INFO (LOOPBACK,
         .valid_parts = NM_META_SETTING_VALID_PARTS (
             NM_META_SETTING_VALID_PART_ITEM (CONNECTION,            TRUE),
@@ -8802,6 +8854,7 @@ static const NMMetaSettingValidPartItem *const valid_settings_noslave[] = {
     NM_META_SETTING_VALID_PART_ITEM(IP4_CONFIG, FALSE),
     NM_META_SETTING_VALID_PART_ITEM(IP6_CONFIG, FALSE),
     NM_META_SETTING_VALID_PART_ITEM(HOSTNAME, FALSE),
+    NM_META_SETTING_VALID_PART_ITEM(LINK, FALSE),
     NM_META_SETTING_VALID_PART_ITEM(TC_CONFIG, FALSE),
     NM_META_SETTING_VALID_PART_ITEM(PROXY, FALSE),
     NULL,
@@ -8809,11 +8862,15 @@ static const NMMetaSettingValidPartItem *const valid_settings_noslave[] = {
 
 static const NMMetaSettingValidPartItem *const valid_settings_slave_bond[] = {
     NM_META_SETTING_VALID_PART_ITEM(BOND_PORT, TRUE),
+    NM_META_SETTING_VALID_PART_ITEM(LINK, FALSE),
+    NM_META_SETTING_VALID_PART_ITEM(MATCH, FALSE),
     NULL,
 };
 
 static const NMMetaSettingValidPartItem *const valid_settings_slave_bridge[] = {
     NM_META_SETTING_VALID_PART_ITEM(BRIDGE_PORT, TRUE),
+    NM_META_SETTING_VALID_PART_ITEM(LINK, FALSE),
+    NM_META_SETTING_VALID_PART_ITEM(MATCH, FALSE),
     NULL,
 };
 
@@ -8823,11 +8880,15 @@ static const NMMetaSettingValidPartItem *const valid_settings_slave_ovs_bridge[]
 };
 
 static const NMMetaSettingValidPartItem *const valid_settings_slave_ovs_port[] = {
+    NM_META_SETTING_VALID_PART_ITEM(LINK, FALSE),
+    NM_META_SETTING_VALID_PART_ITEM(MATCH, FALSE),
     NM_META_SETTING_VALID_PART_ITEM(OVS_INTERFACE, FALSE),
     NULL,
 };
 
 static const NMMetaSettingValidPartItem *const valid_settings_slave_team[] = {
+    NM_META_SETTING_VALID_PART_ITEM(LINK, FALSE),
+    NM_META_SETTING_VALID_PART_ITEM(MATCH, FALSE),
     NM_META_SETTING_VALID_PART_ITEM(TEAM_PORT, TRUE),
     NULL,
 };
diff --git a/src/libnmc-setting/settings-docs.h.in b/src/libnmc-setting/settings-docs.h.in
index ece3cfc831..8c8741d166 100644
--- a/src/libnmc-setting/settings-docs.h.in
+++ b/src/libnmc-setting/settings-docs.h.in
@@ -443,6 +443,10 @@
 #define DESCRIBE_DOC_NM_SETTING_HOSTNAME_FROM_DNS_LOOKUP N_("Whether the system hostname can be determined from reverse DNS lookup of addresses on this device. When set to NM_TERNARY_DEFAULT (-1), the value from global configuration is used. If the property doesn't have a value in the global configuration, NetworkManager assumes the value to be NM_TERNARY_TRUE (1).")
 #define DESCRIBE_DOC_NM_SETTING_HOSTNAME_ONLY_FROM_DEFAULT N_("If set to NM_TERNARY_TRUE (1), NetworkManager attempts to get the hostname via DHCPv4/DHCPv6 or reverse DNS lookup on this device only when the device has the default route for the given address family (IPv4/IPv6). If set to NM_TERNARY_FALSE (0), the hostname can be set from this device even if it doesn't have the default route. When set to NM_TERNARY_DEFAULT (-1), the value from global configuration is used. If the property doesn't have a value in the global configuration, NetworkManager assumes the value to be NM_TERNARY_FALSE (0).")
 #define DESCRIBE_DOC_NM_SETTING_HOSTNAME_PRIORITY N_("The relative priority of this connection to determine the system hostname. A lower numerical value is better (higher priority).  A connection with higher priority is considered before connections with lower priority. If the value is zero, it can be overridden by a global value from NetworkManager configuration. If the property doesn't have a value in the global configuration, the value is assumed to be 100. Negative values have the special effect of excluding other connections with a greater numerical priority value; so in presence of at least one negative priority, only connections with the lowest priority value will be used to determine the hostname.")
+#define DESCRIBE_DOC_NM_SETTING_LINK_GRO_MAX_SIZE N_("The maximum size of a packet built by the Generic Receive Offload stack for this device. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved.")
+#define DESCRIBE_DOC_NM_SETTING_LINK_GSO_MAX_SEGMENTS N_("The maximum segments of a Generic Segment Offload packet the device should accept. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved.")
+#define DESCRIBE_DOC_NM_SETTING_LINK_GSO_MAX_SIZE N_("The maximum size of a Generic Segment Offload packet the device should accept. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved.")
+#define DESCRIBE_DOC_NM_SETTING_LINK_TX_QUEUE_LENGTH N_("The size of the transmit queue for the device, in number of packets. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved.")
 #define DESCRIBE_DOC_NM_SETTING_LOOPBACK_MTU N_("If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple Ethernet frames.")
 #define DESCRIBE_DOC_NM_SETTING_OVS_EXTERNAL_IDS_DATA N_("A dictionary of key/value pairs with external-ids for OVS.")
 #define DESCRIBE_DOC_NM_SETTING_OVS_OTHER_CONFIG_DATA N_("A dictionary of key/value pairs with other_config settings for OVS. See also \"other_config\" in the \"ovs-vswitchd.conf.db\" manual for the keys that OVS supports.")
diff --git a/src/nmcli/connections.c b/src/nmcli/connections.c
index 36de6373e9..5de64727b3 100644
--- a/src/nmcli/connections.c
+++ b/src/nmcli/connections.c
@@ -1046,9 +1046,9 @@ const NmcMetaGenericInfo
     "," NM_SETTING_MACVLAN_SETTING_NAME "," NM_SETTING_VXLAN_SETTING_NAME              \
     "," NM_SETTING_VRF_SETTING_NAME "," NM_SETTING_WPAN_SETTING_NAME                   \
     "," NM_SETTING_6LOWPAN_SETTING_NAME "," NM_SETTING_WIREGUARD_SETTING_NAME          \
-    "," NM_SETTING_PROXY_SETTING_NAME "," NM_SETTING_TC_CONFIG_SETTING_NAME            \
-    "," NM_SETTING_SRIOV_SETTING_NAME "," NM_SETTING_ETHTOOL_SETTING_NAME              \
-    "," NM_SETTING_OVS_DPDK_SETTING_NAME                                               \
+    "," NM_SETTING_LINK_SETTING_NAME "," NM_SETTING_PROXY_SETTING_NAME                 \
+    "," NM_SETTING_TC_CONFIG_SETTING_NAME "," NM_SETTING_SRIOV_SETTING_NAME            \
+    "," NM_SETTING_ETHTOOL_SETTING_NAME "," NM_SETTING_OVS_DPDK_SETTING_NAME           \
     "," NM_SETTING_HOSTNAME_SETTING_NAME /* NM_SETTING_DUMMY_SETTING_NAME NM_SETTING_WIMAX_SETTING_NAME */
 
 const NmcMetaGenericInfo *const nmc_fields_con_active_details_groups[] = {
diff --git a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
index 66815d2697..41d6c2bd13 100644
--- a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
+++ b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
@@ -776,6 +776,16 @@
         <property name="token"
                   description="Configure the token for draft-chown-6man-tokenised-ipv6-identifiers-02 IPv6 tokenized interface identifiers. Useful with eui64 addr-gen-mode." />
     </setting>
+    <setting name="link" >
+        <property name="gso-max-segments"
+                  description="The maximum segments of a Generic Segment Offload packet the device should accept. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved." />
+        <property name="gso-max-size"
+                  description="The maximum size of a Generic Segment Offload packet the device should accept. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved." />
+        <property name="gro-max-size"
+                  description="The maximum size of a packet built by the Generic Receive Offload stack for this device. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved." />
+        <property name="tx-queue-length"
+                  description="The size of the transmit queue for the device, in number of packets. The value must be between 0 and 4294967295. When set to -1, the existing value is preserved." />
+    </setting>
     <setting name="loopback" >
         <property name="mtu"
                   alias="mtu"
diff --git a/vapi/NM-1.0.metadata b/vapi/NM-1.0.metadata
index 48df877b51..44e2674e70 100644
--- a/vapi/NM-1.0.metadata
+++ b/vapi/NM-1.0.metadata
@@ -36,6 +36,7 @@ SETTING_IP4_CONFIG_*        parent="NM.SettingIP4Config"            name="SETTIN
 SETTING_IP6_CONFIG_*        parent="NM.SettingIP6Config"            name="SETTING_IP6_CONFIG_(.+)"
 SETTING_IP_CONFIG_*         parent="NM.SettingIPConfig"             name="SETTING_IP_CONFIG_(.+)"
 SETTING_IP_TUNNEL_*         parent="NM.SettingIPTunnel"             name="SETTING_IP_TUNNEL_(.+)"
+SETTING_LINK_*              parent="NM.SettingLink"                 name="SETTING_LINK_(.+)"
 SETTING_LOOPBACK_*          parent="NM.SettingLoopback"             name="SETTING_LOOPBACK_(.+)"
 SETTING_MACSEC_*            parent="NM.SettingMacsec"               name="SETTING_MACSEC_(.+)"
 SETTING_MACVLAN_*           parent="NM.SettingMacvlan"              name="SETTING_MACVLAN_(.+)"