/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Subject to the GPL, version 2. */ #ifndef RX_RING_H #define RX_RING_H #include #include "ring.h" extern void ring_rx_setup(struct ring *ring, int sock, size_t size, int ifindex, struct pollfd *poll, bool v3, bool jumbo_support, bool verbose, uint32_t fanout_group, uint32_t fanout_type); extern void destroy_rx_ring(int sock, struct ring *ring); extern int get_rx_net_stats(int sock, uint64_t *packets, uint64_t *drops, bool v3); static inline int user_may_pull_from_rx(struct tpacket2_hdr *hdr) { return ((hdr->tp_status & TP_STATUS_USER) == TP_STATUS_USER); } static inline void kernel_may_pull_from_rx(struct tpacket2_hdr *hdr) { hdr->tp_status = TP_STATUS_KERNEL; } #ifdef HAVE_TPACKET3 static inline int user_may_pull_from_rx_block(struct block_desc *pbd) { return ((pbd->h1.block_status & TP_STATUS_USER) == TP_STATUS_USER); } static inline void kernel_may_pull_from_rx_block(struct block_desc *pbd) { pbd->h1.block_status = TP_STATUS_KERNEL; } #endif /* HAVE_TPACKET3 */ /* Fanout types. */ #ifndef PACKET_FANOUT_HASH # define PACKET_FANOUT_HASH 0 #endif #ifndef PACKET_FANOUT_LB # define PACKET_FANOUT_LB 1 #endif #ifndef PACKET_FANOUT_CPU # define PACKET_FANOUT_CPU 2 #endif #ifndef PACKET_FANOUT_ROLLOVER # define PACKET_FANOUT_ROLLOVER 3 #endif #ifndef PACKET_FANOUT_RND # define PACKET_FANOUT_RND 4 #endif #ifndef PACKET_FANOUT_QM # define PACKET_FANOUT_QM 5 #endif #ifndef PACKET_FANOUT_FLAG_ROLLOVER # define PACKET_FANOUT_FLAG_ROLLOVER 0x1000 #endif #ifndef PACKET_FANOUT_FLAG_DEFRAG # define PACKET_FANOUT_FLAG_DEFRAG 0x8000 #endif #endif /* RX_RING_H */ >refslogtreecommitdiff
path: root/sound/pci/echoaudio/gina20_dsp.c
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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/pci/echoaudio/gina20_dsp.c
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/pci/echoaudio/gina20_dsp.c')