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/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009 - 2013 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#ifndef LINKTYPE_H
#define LINKTYPE_H

#define LINKTYPE_NULL				0
#define LINKTYPE_EN10MB				1
#define LINKTYPE_EN3MB				2
#define LINKTYPE_AX25				3
#define LINKTYPE_PRONET				4
#define LINKTYPE_CHAOS				5
#define LINKTYPE_IEEE802			6
#define LINKTYPE_SLIP				8
#define LINKTYPE_PPP				9
#define LINKTYPE_FDDI				10
#define LINKTYPE_ATM_CLIP			19
#define LINKTYPE_C_HDLC				104
#define LINKTYPE_IEEE802_11			105
#define LINKTYPE_FRELAY				107
#define LINKTYPE_ECONET				115
#define LINKTYPE_ARCNET_LINUX			129
#define LINKTYPE_LINUX_IRDA			144
#define LINKTYPE_CAN20B				190
#define LINKTYPE_IEEE802_15_4_LINUX		191
#define LINKTYPE_INFINIBAND			247
#define LINKTYPE_NETLINK			253
#define LINKTYPE_MAX				254

#endif
11:08 +0100 commit6e978b22efa1db9f6e71b24440b5f1d93e968ee3 (patch) treec666f7a26b860674848949e39a610222b0723f89 /net/mac80211/fils_aead.c parent3c223c19aea85d3dda1416c187915f4a30b04b1f (diff)
cpufreq: intel_pstate: Disable energy efficiency optimization
Some Kabylake desktop processors may not reach max turbo when running in HWP mode, even if running under sustained 100% utilization. This occurs when the HWP.EPP (Energy Performance Preference) is set to "balance_power" (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/mac80211/fils_aead.c')