#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; } >diff options

author	David Ahern <dsa@cumulusnetworks.com>	2017-02-02 12:37:10 -0800
committer	David S. Miller <davem@davemloft.net>	2017-02-04 19:58:14 -0500
commit	3b1137fe74829e021f483756a648cbb87c8a1b4a (patch)
tree	1ecd3c34b17fe500786be8bb88d6b632eb1050b9 /include/net
parent	beb1afac518dec5a15dc92ba8f0ca016dcf457b4 (diff)

net: ipv6: Change notifications for multipath add to RTA_MULTIPATH

Change ip6_route_multipath_add to send one notifciation with the full route encoded with RTA_MULTIPATH instead of a series of individual routes. This is done by adding a skip_notify flag to the nl_info struct. The flag is used to skip sending of the notification in the fib code that actually inserts the route. Once the full route has been added, a notification is generated with all nexthops. ip6_route_multipath_add handles 3 use cases: new routes, route replace, and route append. The multipath notification generated needs to be consistent with the order of the nexthops and it should be consistent with the order in a FIB dump which means the route with the first nexthop needs to be used as the route reference. For the first 2 cases (new and replace), a reference to the route used to send the notification is obtained by saving the first route added. For the append case, the last route added is used to loop back to its first sibling route which is the first nexthop in the multipath route. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'include/net')

-rw-r--r--

include/net/netlink.h

1

1 files changed, 1 insertions, 0 deletions