![]() Patch to add the ability to detect drops in hardware interfaces via dropwatch. Adds a tracepoint to net_rx_action to signal everytime a napi instance is polled. The dropmon code then periodically checks to see if the rx_frames counter has changed, and if so, adds a drop notification to the netlink protocol, using the reserved all-0's vector to indicate the drop location was in hardware, rather than somewhere in the code. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/linux/net_dropmon.h | 8 ++ include/trace/napi.h | 11 +++ net/core/dev.c | 5 + net/core/drop_monitor.c | 124 ++++++++++++++++++++++++++++++++++++++++++-- net/core/net-traces.c | 4 + net/core/netpoll.c | 2 6 files changed, 149 insertions(+), 5 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net> |
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block.h | ||
boot.h | ||
irq.h | ||
irq_event_types.h | ||
kmemtrace.h | ||
lockdep.h | ||
lockdep_event_types.h | ||
napi.h | ||
power.h | ||
sched.h | ||
sched_event_types.h | ||
skb.h | ||
syscall.h | ||
trace_event_types.h | ||
trace_events.h | ||
workqueue.h |