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ofproto: Add appctl command to show Datapath features

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Exporting Datapath runtime detected features can be useful for
both debugging and for writing system unit testing easier.

Signed-off-by: Andy Zhou <azhou@ovn.org>
Acked-by: Joe Stringer <joe@ovn.org>
This commit is contained in:
Andy Zhou
2017-03-08 18:09:01 -08:00
parent 7718bf94f7
commit a98b700db6
1 changed files with 52 additions and 1 deletions
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53
ofproto/ofproto-dpif.c
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@@ -4890,6 +4890,38 @@ ofproto_unixctl_dpif_dump_dps(struct unixctl_conn *conn, int argc OVS_UNUSED,
ds_destroy(&ds);
}
static void
show_dp_feature_b(struct ds *ds, const char *feature, bool b)
{
ds_put_format(ds, "%s: %s\n", feature, b ? "Yes" : "No");
}
static void
show_dp_feature_s(struct ds *ds, const char *feature, size_t s)
{
ds_put_format(ds, "%s: %"PRIuSIZE"\n", feature, s);
}
static void
dpif_show_support(const struct dpif_backer_support *support, struct ds *ds)
{
show_dp_feature_b(ds, "Variable length userdata",
support->variable_length_userdata);
show_dp_feature_b(ds, "Masked set action", support->masked_set_action);
show_dp_feature_b(ds, "Tunnel push pop", support->tnl_push_pop);
show_dp_feature_b(ds, "Ufid", support->ufid);
show_dp_feature_b(ds, "Trunc action", support->trunc);
show_dp_feature_b(ds, "Clone action", support->clone);
show_dp_feature_s(ds, "Max MPLS depth", support->odp.max_mpls_depth);
show_dp_feature_b(ds, "Recirc", support->odp.recirc);
show_dp_feature_b(ds, "CT state", support->odp.ct_state);
show_dp_feature_b(ds, "CT zone", support->odp.ct_zone);
show_dp_feature_b(ds, "CT mark", support->odp.ct_mark);
show_dp_feature_b(ds, "CT label", support->odp.ct_label);
show_dp_feature_b(ds, "CT State NAT", support->odp.ct_state_nat);
show_dp_feature_s(ds, "Max sample nesting", support->sample_nesting);
}
static void
dpif_show_backer(const struct dpif_backer *backer, struct ds *ds)
{
@@ -4899,7 +4931,6 @@ dpif_show_backer(const struct dpif_backer *backer, struct ds *ds)
size_t i;
dpif_get_dp_stats(backer->dpif, &dp_stats);
ds_put_format(ds, "%s: hit:%"PRIu64" missed:%"PRIu64"\n",
dpif_name(backer->dpif), dp_stats.n_hit, dp_stats.n_missed);
@@ -5118,6 +5149,24 @@ disable_datapath_clone(struct unixctl_conn *conn OVS_UNUSED,
unixctl_command_reply(conn, ds_cstr(&ds));
}
static void
ofproto_unixctl_dpif_show_dp_features(struct unixctl_conn *conn,
int argc, const char *argv[],
void *aux OVS_UNUSED)
{
struct ds ds = DS_EMPTY_INITIALIZER;
const char *br = argv[argc -1];
struct ofproto_dpif *ofproto = ofproto_dpif_lookup(br);
if (!ofproto) {
unixctl_command_reply_error(conn, "no such bridge");
return;
}
dpif_show_support(&ofproto->backer->support, &ds);
unixctl_command_reply(conn, ds_cstr(&ds));
}
static void
ofproto_unixctl_init(void)
{
@@ -5139,6 +5188,8 @@ ofproto_unixctl_init(void)
ofproto_unixctl_dpif_dump_dps, NULL);
unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show,
NULL);
unixctl_command_register("dpif/show-dp-features", "bridge", 1, 1,
ofproto_unixctl_dpif_show_dp_features, NULL);
unixctl_command_register("dpif/dump-flows", "[-m] bridge", 1, 2,
ofproto_unixctl_dpif_dump_flows, NULL);