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network: tc/cake: introduce SplitGSO= setting
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@ -3677,6 +3677,15 @@ Token=prefixstable:2002:da8:1::</programlisting></para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>SplitGSO=</varname></term>
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<listitem>
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<para>Takes a boolean value. When true, CAKE will split General Segmentation Offload (GSO)
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super-packets into their on-the-wire components and dequeue them individually. Defaults to
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unset, and the kernel's default is used.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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@ -395,6 +395,7 @@ CAKE.NAT, config_parse_cake_tristate,
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CAKE.PriorityQueueingPreset, config_parse_cake_priority_queueing_preset, QDISC_KIND_CAKE, 0
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CAKE.FirewallMark, config_parse_cake_fwmark, QDISC_KIND_CAKE, 0
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CAKE.Wash, config_parse_cake_tristate, QDISC_KIND_CAKE, 0
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CAKE.SplitGSO, config_parse_cake_tristate, QDISC_KIND_CAKE, 0
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ControlledDelay.Parent, config_parse_qdisc_parent, QDISC_KIND_CODEL, 0
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ControlledDelay.Handle, config_parse_qdisc_handle, QDISC_KIND_CODEL, 0
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ControlledDelay.PacketLimit, config_parse_controlled_delay_u32, QDISC_KIND_CODEL, 0
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@ -25,6 +25,7 @@ static int cake_init(QDisc *qdisc) {
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c->nat = -1;
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c->preset = _CAKE_PRESET_INVALID;
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c->wash = -1;
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c->split_gso = -1;
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return 0;
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}
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@ -103,6 +104,12 @@ static int cake_fill_message(Link *link, QDisc *qdisc, sd_netlink_message *req)
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return log_link_error_errno(link, r, "Could not append TCA_CAKE_WASH attribute: %m");
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}
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if (c->split_gso >= 0) {
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r = sd_netlink_message_append_u32(req, TCA_CAKE_SPLIT_GSO, c->wash);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append TCA_CAKE_SPLIT_GSO attribute: %m");
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}
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m");
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@ -323,6 +330,8 @@ int config_parse_cake_tristate(
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dest = &c->nat;
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else if (streq(lvalue, "Wash"))
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dest = &c->wash;
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else if (streq(lvalue, "SplitGSO"))
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dest = &c->split_gso;
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else
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assert_not_reached();
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@ -61,6 +61,7 @@ typedef struct CommonApplicationsKeptEnhanced {
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/* Other parameters */
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int wash;
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int split_gso;
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} CommonApplicationsKeptEnhanced;
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@ -477,6 +477,7 @@ NAT=
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PriorityQueueingPreset=
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FirewallMark=
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Wash=
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SplitGSO=
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[TrafficControlQueueingDiscipline]
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Parent=
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NetworkEmulatorDelaySec=
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