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#
# Configuration for 802.1Q VLAN support
#

config VLAN_8021Q
	tristate "802.1Q/802.1ad VLAN Support"
	---help---
	  Select this and you will be able to create 802.1Q VLAN interfaces
	  on your Ethernet interfaces. 802.1Q VLAN supports almost
	  everything a regular Ethernet interface does, including
	  firewalling, bridging, and of course IP traffic. You will need
	  the 'ip' utility in order to effectively use VLANs.
	  See the VLAN web page for more information:
	  <http://www.candelatech.com/~greear/vlan.html>

	  To compile this code as a module, choose M here: the module
	  will be called 8021q.

	  If unsure, say N.

config VLAN_8021Q_GVRP
	bool "GVRP (GARP VLAN Registration Protocol) support"
	depends on VLAN_8021Q
	select GARP
	help
	  Select this to enable GVRP end-system support. GVRP is used for
	  automatic propagation of registered VLANs to switches.

	  If unsure, say N.

config VLAN_8021Q_MVRP
	bool "MVRP (Multiple VLAN Registration Protocol) support"
	depends on VLAN_8021Q
	select MRP
	help
	  Select this to enable MVRP end-system support. MVRP is used for
	  automatic propagation of registered VLANs to switches; it
	  supersedes GVRP and is not backwards-compatible.

	  If unsure, say N.
ower" (0x80) -- the default on most systems. It occurs because the platform BIOS may erroneously enable an energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not recommended to be enabled on this SKU. On the failing systems, this BIOS issue was not discovered when the desktop motherboard was tested with Windows, because the BIOS also neglects to provide the ACPI/CPPC table, that Windows requires to enable HWP, and so Windows runs in legacy P-state mode, where this setting has no effect. Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and so it runs in HWP mode, exposing this incorrect BIOS configuration. There are several ways to address this problem. First, Linux can also run in legacy P-state mode on this system. As intel_pstate is how Linux enables HWP, booting with "intel_pstate=disable" will run in acpi-cpufreq/ondemand legacy p-state mode. Or second, the "performance" governor can be used with intel_pstate, which will modify HWP.EPP to 0. Or third, starting in 4.10, the /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference attribute in can be updated from "balance_power" to "performance". Or fourth, apply this patch, which fixes the erroneous setting of MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default configuration to function as designed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Cc: 4.6+ <stable@vger.kernel.org> # 4.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'net/802/fc.c')