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dpctl: Add function to read hardware offload statistics.

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Expose a function to query datapath offload statistics.
This function is separate from the current one in netdev-offload
as it exposes more detailed statistics from the datapath, instead of
only from the netdev-offload provider.

Each datapath is meant to use the custom counters as it sees fit for its
handling of hardware offloads.

Call the new API from dpctl.

Signed-off-by: Gaetan Rivet <grive@u256.net>
Reviewed-by: Eli Britstein <elibr@nvidia.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
Gaetan Rivet
2021-09-08 11:47:31 +02:00
committed by Ilya Maximets
parent 0e6366c239
commit 9ab104718b
6 changed files with 62 additions and 0 deletions
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36
lib/dpctl.c
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@@ -1582,6 +1582,40 @@ dpctl_del_flows(int argc, const char *argv[], struct dpctl_params *dpctl_p)
return error;
}
static int
dpctl_offload_stats_show(int argc, const char *argv[],
struct dpctl_params *dpctl_p)
{
struct netdev_custom_stats stats;
struct dpif *dpif;
int error;
size_t i;
error = opt_dpif_open(argc, argv, dpctl_p, 2, &dpif);
if (error) {
return error;
}
memset(&stats, 0, sizeof(stats));
error = dpif_offload_stats_get(dpif, &stats);
if (error) {
dpctl_error(dpctl_p, error, "retrieving offload statistics");
goto close_dpif;
}
dpctl_print(dpctl_p, "HW Offload stats:\n");
for (i = 0; i < stats.size; i++) {
dpctl_print(dpctl_p, " %s: %6" PRIu64 "\n",
stats.counters[i].name, stats.counters[i].value);
}
netdev_free_custom_stats_counters(&stats);
close_dpif:
dpif_close(dpif);
return error;
}
static int
dpctl_help(int argc OVS_UNUSED, const char *argv[] OVS_UNUSED,
struct dpctl_params *dpctl_p)
@@ -2824,6 +2858,8 @@ static const struct dpctl_command all_commands[] = {
{ "add-flows", "[dp] file", 1, 2, dpctl_process_flows, DP_RW },
{ "mod-flows", "[dp] file", 1, 2, dpctl_process_flows, DP_RW },
{ "del-flows", "[dp] [file]", 0, 2, dpctl_del_flows, DP_RW },
{ "offload-stats-show", "[dp]",
0, 1, dpctl_offload_stats_show, DP_RO },
{ "dump-conntrack", "[-m] [-s] [dp] [zone=N]",
0, 4, dpctl_dump_conntrack, DP_RO },
{ "flush-conntrack", "[dp] [zone=N] [ct-tuple]", 0, 3,