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link: Add support to configure Generic Segment Offload

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This commit is contained in:
Susant Sahani
2021-01-12 13:36:49 +01:00
parent c97cad60d1
commit 1e270127de
5 changed files with 69 additions and 47 deletions
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16
man/systemd.link.xml
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@@ -743,6 +743,22 @@
PAUSE configuration. When unset, the kernel's default will be used.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>GenericSegmentOffloadMaxBytes=</varname></term>
<listitem>
<para>Specifies the maximum size of a Generic Segment Offload (GSO) packet the
device should accept. The usual suffixes K, M, G, are supported and are
understood to the base of 1024. An unsigned integer in the range 1—65536.
Defaults to unset.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>GenericSegmentOffloadMaxSegments=</varname></term>
<listitem>
<para>Specifies the maximum number of a Generic Segment Offload (GSO) segments the device should accept.
An unsigned integer in the range 1—65535. Defaults to unset.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>

94
src/udev/net/link-config-gperf.gperf
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@@ -20,49 +20,51 @@ struct ConfigPerfItem;
%struct-type
%includes
%%
Match.MACAddress, config_parse_hwaddrs, 0, offsetof(link_config, match.mac)
Match.PermanentMACAddress, config_parse_hwaddrs, 0, offsetof(link_config, match.permanent_mac)
Match.OriginalName, config_parse_match_ifnames, 0, offsetof(link_config, match.ifname)
Match.Path, config_parse_match_strv, 0, offsetof(link_config, match.path)
Match.Driver, config_parse_match_strv, 0, offsetof(link_config, match.driver)
Match.Type, config_parse_match_strv, 0, offsetof(link_config, match.iftype)
Match.Property, config_parse_match_property, 0, offsetof(link_config, match.property)
Match.Host, config_parse_net_condition, CONDITION_HOST, offsetof(link_config, conditions)
Match.Virtualization, config_parse_net_condition, CONDITION_VIRTUALIZATION, offsetof(link_config, conditions)
Match.KernelCommandLine, config_parse_net_condition, CONDITION_KERNEL_COMMAND_LINE, offsetof(link_config, conditions)
Match.KernelVersion, config_parse_net_condition, CONDITION_KERNEL_VERSION, offsetof(link_config, conditions)
Match.Architecture, config_parse_net_condition, CONDITION_ARCHITECTURE, offsetof(link_config, conditions)
Link.Description, config_parse_string, 0, offsetof(link_config, description)
Link.MACAddressPolicy, config_parse_mac_address_policy, 0, offsetof(link_config, mac_address_policy)
Link.MACAddress, config_parse_hwaddr, 0, offsetof(link_config, mac)
Link.NamePolicy, config_parse_name_policy, 0, offsetof(link_config, name_policy)
Link.Name, config_parse_ifname, 0, offsetof(link_config, name)
Link.AlternativeName, config_parse_ifnames, IFNAME_VALID_ALTERNATIVE, offsetof(link_config, alternative_names)
Link.AlternativeNamesPolicy, config_parse_alternative_names_policy, 0, offsetof(link_config, alternative_names_policy)
Link.Alias, config_parse_ifalias, 0, offsetof(link_config, alias)
Link.MTUBytes, config_parse_mtu, AF_UNSPEC, offsetof(link_config, mtu)
Link.BitsPerSecond, config_parse_si_uint64, 0, offsetof(link_config, speed)
Link.Duplex, config_parse_duplex, 0, offsetof(link_config, duplex)
Link.AutoNegotiation, config_parse_tristate, 0, offsetof(link_config, autonegotiation)
Link.WakeOnLan, config_parse_wol, 0, offsetof(link_config, wol)
Link.Port, config_parse_port, 0, offsetof(link_config, port)
Link.ReceiveChecksumOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_RX])
Link.TransmitChecksumOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TX])
Link.GenericSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_GSO])
Link.TCPSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TSO])
Link.TCP6SegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TSO6])
Link.UDPSegmentationOffload, config_parse_warn_compat, DISABLED_LEGACY, 0
Link.GenericReceiveOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_GRO])
Link.LargeReceiveOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_LRO])
Link.RxChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.TxChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.OtherChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.CombinedChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.Advertise, config_parse_advertise, 0, offsetof(link_config, advertise)
Link.RxBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.RxMiniBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.RxJumboBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.TxBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.RxFlowControl, config_parse_tristate, 0, offsetof(link_config, rx_flow_control)
Link.TxFlowControl, config_parse_tristate, 0, offsetof(link_config, tx_flow_control)
Link.AutoNegotiationFlowControl, config_parse_tristate, 0, offsetof(link_config, autoneg_flow_control)
Match.MACAddress, config_parse_hwaddrs, 0, offsetof(link_config, match.mac)
Match.PermanentMACAddress, config_parse_hwaddrs, 0, offsetof(link_config, match.permanent_mac)
Match.OriginalName, config_parse_match_ifnames, 0, offsetof(link_config, match.ifname)
Match.Path, config_parse_match_strv, 0, offsetof(link_config, match.path)
Match.Driver, config_parse_match_strv, 0, offsetof(link_config, match.driver)
Match.Type, config_parse_match_strv, 0, offsetof(link_config, match.iftype)
Match.Property, config_parse_match_property, 0, offsetof(link_config, match.property)
Match.Host, config_parse_net_condition, CONDITION_HOST, offsetof(link_config, conditions)
Match.Virtualization, config_parse_net_condition, CONDITION_VIRTUALIZATION, offsetof(link_config, conditions)
Match.KernelCommandLine, config_parse_net_condition, CONDITION_KERNEL_COMMAND_LINE, offsetof(link_config, conditions)
Match.KernelVersion, config_parse_net_condition, CONDITION_KERNEL_VERSION, offsetof(link_config, conditions)
Match.Architecture, config_parse_net_condition, CONDITION_ARCHITECTURE, offsetof(link_config, conditions)
Link.Description, config_parse_string, 0, offsetof(link_config, description)
Link.MACAddressPolicy, config_parse_mac_address_policy, 0, offsetof(link_config, mac_address_policy)
Link.MACAddress, config_parse_hwaddr, 0, offsetof(link_config, mac)
Link.NamePolicy, config_parse_name_policy, 0, offsetof(link_config, name_policy)
Link.Name, config_parse_ifname, 0, offsetof(link_config, name)
Link.AlternativeName, config_parse_ifnames, IFNAME_VALID_ALTERNATIVE, offsetof(link_config, alternative_names)
Link.AlternativeNamesPolicy, config_parse_alternative_names_policy, 0, offsetof(link_config, alternative_names_policy)
Link.Alias, config_parse_ifalias, 0, offsetof(link_config, alias)
Link.MTUBytes, config_parse_mtu, AF_UNSPEC, offsetof(link_config, mtu)
Link.BitsPerSecond, config_parse_si_uint64, 0, offsetof(link_config, speed)
Link.Duplex, config_parse_duplex, 0, offsetof(link_config, duplex)
Link.AutoNegotiation, config_parse_tristate, 0, offsetof(link_config, autonegotiation)
Link.WakeOnLan, config_parse_wol, 0, offsetof(link_config, wol)
Link.Port, config_parse_port, 0, offsetof(link_config, port)
Link.ReceiveChecksumOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_RX])
Link.TransmitChecksumOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TX])
Link.GenericSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_GSO])
Link.TCPSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TSO])
Link.TCP6SegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TSO6])
Link.UDPSegmentationOffload, config_parse_warn_compat, DISABLED_LEGACY, 0
Link.GenericReceiveOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_GRO])
Link.LargeReceiveOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_LRO])
Link.RxChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.TxChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.OtherChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.CombinedChannels, config_parse_channel, 0, offsetof(link_config, channels)
Link.Advertise, config_parse_advertise, 0, offsetof(link_config, advertise)
Link.RxBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.RxMiniBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.RxJumboBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.TxBufferSize, config_parse_nic_buffer_size, 0, offsetof(link_config, ring)
Link.RxFlowControl, config_parse_tristate, 0, offsetof(link_config, rx_flow_control)
Link.TxFlowControl, config_parse_tristate, 0, offsetof(link_config, tx_flow_control)
Link.AutoNegotiationFlowControl, config_parse_tristate, 0, offsetof(link_config, autoneg_flow_control)
Link.GenericSegmentOffloadMaxBytes, config_parse_iec_size, 0, offsetof(link_config, gso_max_size)
Link.GenericSegmentOffloadMaxSegments, config_parse_uint32, 0, offsetof(link_config, gso_max_segments)

2
src/udev/net/link-config.c
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@@ -426,7 +426,7 @@ static int link_config_apply_rtnl_settings(sd_netlink **rtnl, const link_config
} else
mac = config->mac;
r = rtnl_set_link_properties(rtnl, ifindex, config->alias, mac, config->mtu);
r = rtnl_set_link_properties(rtnl, ifindex, config->alias, mac, config->mtu, config->gso_max_size, config->gso_max_segments);
if (r < 0)
log_device_warning_errno(device, r, "Could not set Alias=, MACAddress= or MTU=, ignoring: %m");

2
src/udev/net/link-config.h
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@@ -47,6 +47,8 @@ struct link_config {
char **alternative_names;
char *alias;
uint32_t mtu;
uint32_t gso_max_segments;
size_t gso_max_size;
uint64_t speed;
Duplex duplex;
int autonegotiation;

2
test/fuzz/fuzz-link-parser/directives.link
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@@ -46,3 +46,5 @@ TxBufferSize=
RxFlowControl=
TxFlowControl=
AutoNegotiationFlowControl=
GenericSegmentOffloadMaxBytes=
GenericSegmentOffloadMaxSegments=