# # B.A.T.M.A.N meshing protocol # config BATMAN_ADV tristate "B.A.T.M.A.N. Advanced Meshing Protocol" depends on NET select CRC16 select LIBCRC32C default n help B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing protocol for multi-hop ad-hoc mesh networks. The networks may be wired or wireless. See https://www.open-mesh.org/ for more information and user space tools. config BATMAN_ADV_BATMAN_V bool "B.A.T.M.A.N. V protocol (experimental)" depends on BATMAN_ADV && !(CFG80211=m && BATMAN_ADV=y) default n help This option enables the B.A.T.M.A.N. V protocol, the successor of the currently used B.A.T.M.A.N. IV protocol. The main changes include splitting of the OGM protocol into a neighbor discovery protocol (Echo Location Protocol, ELP) and a new OGM Protocol OGMv2 for flooding protocol information through the network, as well as a throughput based metric. B.A.T.M.A.N. V is currently considered experimental and not compatible to B.A.T.M.A.N. IV networks. config BATMAN_ADV_BLA bool "Bridge Loop Avoidance" depends on BATMAN_ADV && INET default y help This option enables BLA (Bridge Loop Avoidance), a mechanism to avoid Ethernet frames looping when mesh nodes are connected to both the same LAN and the same mesh. If you will never use more than one mesh node in the same LAN, you can safely remove this feature and save some space. config BATMAN_ADV_DAT bool "Distributed ARP Table" depends on BATMAN_ADV && INET default n help This option enables DAT (Distributed ARP Table), a DHT based mechanism that increases ARP reliability on sparse wireless mesh networks. If you think that your network does not need this option you can safely remove it and save some space. config BATMAN_ADV_NC bool "Network Coding" depends on BATMAN_ADV default n help This option enables network coding, a mechanism that aims to increase the overall network throughput by fusing multiple packets in one transmission. Note that interfaces controlled by batman-adv must be manually configured to have promiscuous mode enabled in order to make network coding work. If you think that your network does not need this feature you can safely disable it and save some space. config BATMAN_ADV_MCAST bool "Multicast optimisation" depends on BATMAN_ADV && INET && !(BRIDGE=m && BATMAN_ADV=y) default n help This option enables the multicast optimisation which aims to reduce the air overhead while improving the reliability of multicast messages. config BATMAN_ADV_DEBUGFS bool "batman-adv debugfs entries" depends on BATMAN_ADV depends on DEBUG_FS default y help Enable this to export routing related debug tables via debugfs. The information for each soft-interface and used hard-interface can be found under batman_adv/ If unsure, say Y. config BATMAN_ADV_DEBUG bool "B.A.T.M.A.N. debugging" depends on BATMAN_ADV_DEBUGFS help This is an option for use by developers; most people should say N here. This enables compilation of support for outputting debugging information to the kernel log. The output is controlled via the module parameter debug. intel
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /sound/soc/intel
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/intel')