#include #include #include #include #include "tests.h" #include "util/evsel.h" #include "util/evlist.h" #include "util/cpumap.h" #include "util/thread_map.h" #define NR_LOOPS 10000000 /* * This test will open software clock events (cpu-clock, task-clock) * then check their frequency -> period conversion has no artifact of * setting period to 1 forcefully. */ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) { int i, err = -1; volatile int tmp = 0; u64 total_periods = 0; int nr_samples = 0; char sbuf[STRERR_BUFSIZE]; union perf_event *event; struct perf_evsel *evsel; struct perf_evlist *evlist; struct perf_event_attr attr = { .type = PERF_TYPE_SOFTWARE, .config = clock_id, .sample_type = PERF_SAMPLE_PERIOD, .exclude_kernel = 1, .disabled = 1, .freq = 1, }; struct cpu_map *cpus; struct thread_map *threads; attr.sample_freq = 500; evlist = perf_evlist__new(); if (evlist == NULL) { pr_debug("perf_evlist__new\n"); return -1; } evsel = perf_evsel__new(&attr); if (evsel == NULL) { pr_debug("perf_evsel__new\n"); goto out_delete_evlist; } perf_evlist__add(evlist, evsel); cpus = cpu_map__dummy_new(); threads = thread_map__new_by_tid(getpid()); if (!cpus || !threads) { err = -ENOMEM; pr_debug("Not enough memory to create thread/cpu maps\n"); goto out_free_maps; } perf_evlist__set_maps(evlist, cpus, threads); cpus = NULL; threads = NULL; if (perf_evlist__open(evlist)) { const char *knob = "/proc/sys/kernel/perf_event_max_sample_rate"; err = -errno; pr_debug("Couldn't open evlist: %s\nHint: check %s, using %" PRIu64 " in this test.\n", str_error_r(errno, sbuf, sizeof(sbuf)), knob, (u64)attr.sample_freq); goto out_delete_evlist; } err = perf_evlist__mmap(evlist, 128, true); if (err < 0) { pr_debug("failed to mmap event: %d (%s)\n", errno, str_error_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } perf_evlist__enable(evlist); /* collect samples */ for (i = 0; i < NR_LOOPS; i++) tmp++; perf_evlist__disable(evlist); while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) { struct perf_sample sample; if (event->header.type != PERF_RECORD_SAMPLE) goto next_event; err = perf_evlist__parse_sample(evlist, event, &sample); if (err < 0) { pr_debug("Error during parse sample\n"); goto out_delete_evlist; } total_periods += sample.period; nr_samples++; next_event: perf_evlist__mmap_consume(evlist, 0); } if ((u64) nr_samples == total_periods) { pr_debug("All (%d) samples have period value of 1!\n", nr_samples); err = -1; } out_free_maps: cpu_map__put(cpus); thread_map__put(threads); out_delete_evlist: perf_evlist__delete(evlist); return err; } int test__sw_clock_freq(int subtest __maybe_unused) { int ret; ret = __test__sw_clock_freq(PERF_COUNT_SW_CPU_CLOCK); if (!ret) ret = __test__sw_clock_freq(PERF_COUNT_SW_TASK_CLOCK); return ret; } root/net/xfrm/xfrm_policy.c
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authorDavid S. Miller <davem@davemloft.net>2017-01-30 15:55:48 -0500
committerDavid S. Miller <davem@davemloft.net>2017-01-30 15:56:40 -0500
commit1930b60352e7e195f55b27cde15d2a8f43342a8b (patch)
treeec3f66cd8d8110bf7b4f61e0446bdea505915db9 /net/xfrm/xfrm_policy.c
parent4be9993493bc7ee3fdf950a83bc050a3e6cf2a45 (diff)
parentec960de61503ef349588dccfa3ae02efabcc2762 (diff)
Merge branch 'dsa-port-mirroring'
Florian Fainelli says: ==================== net: dsa: Port mirroring support This patch series adds support for port mirroring in the two Broadcom switch drivers. The major part of the functional are actually with the plumbing between tc and the drivers. Changes in v5: - Added Jiri's Reviewed-by tag to first patch - rebase against latest net-next/master after bcm_sf2 CFP series Changes in v4: - rebased against latest net-next/master after Vivien's changes Changes in v3: - removed multiline comments from added structures - simplify error handling in dsa_slave_add_cls_matchall Changes in v2: - fixed filter removal logic to disable the ingress or egress mirroring when there are no longer ports being monitored in ingress or egress - removed a stray list_head in dsa_port structure that is not used Tested using the two iproute2 examples: tc qdisc add dev eth1 handle ffff: ingress tc filter add dev eth1 parent ffff: \ matchall skip_sw \ action mirred egress mirror \ dev eth2 tc qdisc add dev eth1 handle 1: root prio tc filter add dev eth1 parent 1: \ matchall skip_sw \ action mirred egress mirror \ dev eth2 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm/xfrm_policy.c')