/* * 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 */ cgit.cgi/linux/net-next.git/log/tools/perf/tests/parse-events.c'>logtreecommitdiff
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /tools/perf/tests/parse-events.c
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/perf/tests/parse-events.c')