Jesper Dangaard Brouer f9419f7bd7 bpf: cpumap add tracepoints ... This adds two tracepoint to the cpumap. One for the enqueue side trace_xdp_cpumap_enqueue() and one for the kthread dequeue side trace_xdp_cpumap_kthread(). To mitigate the tracepoint overhead, these are invoked during the enqueue/dequeue bulking phases, thus amortizing the cost. The obvious use-cases are for debugging and monitoring. The non-intuitive use-case is using these as a feedback loop to know the system load. One can imagine auto-scaling by reducing, adding or activating more worker CPUs on demand. V4: tracepoint remove time_limit info, instead add sched info V8: intro struct bpf_cpu_map_entry members cpu+map_id in this patch Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-10-18 12:12:18 +01:00
..
arraymap.c	bpf: perf event change needed for subsequent bpf helpers	2017-10-07 23:05:57 +01:00
bpf_lru_list.c	bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4	2017-04-17 13:55:52 -04:00
bpf_lru_list.h	bpf: Only set node->ref = 1 if it has not been set	2017-09-01 09:57:39 -07:00
cgroup.c	bpf: remove redundant variable old_flags	2017-10-11 20:22:34 -07:00
core.c	tracing: bpf: Hide bpf trace events when they are not used	2017-10-16 21:10:20 +01:00
cpumap.c	bpf: cpumap add tracepoints	2017-10-18 12:12:18 +01:00
devmap.c	bpf: devmap: pass on return value of bpf_map_precharge_memlock	2017-09-18 16:53:30 -07:00
disasm.c	bpf: move instruction printing into a separate file	2017-10-10 12:30:16 -07:00
disasm.h	bpf: move instruction printing into a separate file	2017-10-10 12:30:16 -07:00
hashtab.c	bpf: Only set node->ref = 1 if it has not been set	2017-09-01 09:57:39 -07:00
helpers.c	bpf: rename ARG_PTR_TO_STACK	2017-01-09 16:56:27 -05:00
inode.c	netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'	2017-10-09 15:18:04 +02:00
lpm_trie.c	bpf: Optimize lpm trie delete	2017-09-25 14:37:54 -07:00
Makefile	bpf: introduce new bpf cpu map type BPF_MAP_TYPE_CPUMAP	2017-10-18 12:12:18 +01:00
map_in_map.c	bpf: Add syscall lookup support for fd array and htab	2017-06-29 13:13:25 -04:00
map_in_map.h	bpf: Add syscall lookup support for fd array and htab	2017-06-29 13:13:25 -04:00
percpu_freelist.c
percpu_freelist.h
sockmap.c	bpf: rename bpf_compute_data_end into bpf_compute_data_pointers	2017-09-26 13:36:44 -07:00
stackmap.c	bpf: Allow selecting numa node during map creation	2017-08-19 21:35:43 -07:00
syscall.c	bpf: introduce new bpf cpu map type BPF_MAP_TYPE_CPUMAP	2017-10-18 12:12:18 +01:00
tnum.c	bpf/verifier: track signed and unsigned min/max values	2017-08-08 17:51:34 -07:00
verifier.c	bpf: XDP_REDIRECT enable use of cpumap	2017-10-18 12:12:18 +01:00