Introduce meter support to trigger_event action in order to not overload pinctrl thread under heavy load
Signed-off-by: Lorenzo Bianconi <[email protected]> --- include/ovn/actions.h | 1 + lib/actions.c | 43 +++++++++++++++++++++++++++++++++++++------ 2 files changed, 38 insertions(+), 6 deletions(-) diff --git a/include/ovn/actions.h b/include/ovn/actions.h index 0ca06537c..145f27f25 100644 --- a/include/ovn/actions.h +++ b/include/ovn/actions.h @@ -327,6 +327,7 @@ struct ovnact_controller_event { int event_type; /* controller event type */ struct ovnact_gen_option *options; size_t n_options; + char *meter; }; /* OVNACT_BIND_VPORT. */ diff --git a/lib/actions.c b/lib/actions.c index 08c589ab3..6a5907e1b 100644 --- a/lib/actions.c +++ b/lib/actions.c @@ -1273,6 +1273,9 @@ format_TRIGGER_EVENT(const struct ovnact_controller_event *event, { ds_put_format(s, "trigger_event(event = \"%s\"", event_to_string(event->event_type)); + if (event->meter) { + ds_put_format(s, ", meter = \"%s\"", event->meter); + } for (const struct ovnact_gen_option *o = event->options; o < &event->options[event->n_options]; o++) { ds_put_cstr(s, ", "); @@ -1420,10 +1423,21 @@ encode_TRIGGER_EVENT(const struct ovnact_controller_event *event, const struct ovnact_encode_params *ep OVS_UNUSED, struct ofpbuf *ofpacts) { + uint32_t meter_id = NX_CTLR_NO_METER; size_t oc_offset; + if (event->meter) { + meter_id = ovn_extend_table_assign_id(ep->meter_table, event->meter, + ep->lflow_uuid); + if (meter_id == EXT_TABLE_ID_INVALID) { + VLOG_WARN("Unable to assign id for trigger meter: %s", + event->meter); + return; + } + } + oc_offset = encode_start_controller_op(ACTION_OPCODE_EVENT, false, - NX_CTLR_NO_METER, ofpacts); + meter_id, ofpacts); ovs_be32 ofs = htonl(event->event_type); ofpbuf_put(ofpacts, &ofs, sizeof ofs); @@ -1738,11 +1752,27 @@ parse_trigger_event(struct action_context *ctx, sizeof *event->options); } - struct ovnact_gen_option *o = &event->options[event->n_options++]; - memset(o, 0, sizeof *o); - parse_gen_opt(ctx, o, - &ctx->pp->controller_event_opts->event_opts[event_type], - event_to_string(event_type)); + if (lexer_match_id(ctx->lexer, "meter")) { + if (!lexer_force_match(ctx->lexer, LEX_T_EQUALS)) { + return; + } + /* If multiple meters are given, use the most recent. */ + if (ctx->lexer->token.type == LEX_T_STRING && + strlen(ctx->lexer->token.s)) { + free(event->meter); + event->meter = xstrdup(ctx->lexer->token.s); + } else if (ctx->lexer->token.type != LEX_T_STRING) { + lexer_syntax_error(ctx->lexer, "expecting string"); + return; + } + lexer_get(ctx->lexer); + } else { + struct ovnact_gen_option *o = &event->options[event->n_options++]; + memset(o, 0, sizeof *o); + parse_gen_opt(ctx, o, + &ctx->pp->controller_event_opts->event_opts[event_type], + event_to_string(event_type)); + } if (ctx->lexer->error) { return; } @@ -1763,6 +1793,7 @@ static void ovnact_controller_event_free(struct ovnact_controller_event *event) { free_gen_options(event->options, event->n_options); + free(event->meter); } static void -- 2.21.0 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
