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Partial import reload
This commit is contained in:
Katerina Kubecova
parent
a532146886
commit
10bf227de7
129
nest/proto.c
129
nest/proto.c
@ -52,6 +52,7 @@ static void channel_init_limit(struct channel *c, struct limit *l, int dir, stru
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static void channel_update_limit(struct channel *c, struct limit *l, int dir, struct channel_limit *cf);
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static void channel_reset_limit(struct channel *c, struct limit *l, int dir);
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static int channel_refeed_prefilter(const struct rt_prefilter *p, const net_addr *n);
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static int channel_import_prefilter(const struct rt_prefilter *p, const net_addr *n);
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static void channel_feed_end(struct channel *c);
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static void channel_stop_export(struct channel *c);
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static void channel_export_stopped(struct rt_export_request *req);
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@ -557,6 +558,10 @@ channel_start_import(struct channel *c)
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.dump_req = channel_dump_import_req,
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.log_state_change = channel_import_log_state_change,
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.preimport = channel_preimport,
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.prefilter = {
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.mode = c->out_subprefix ? TE_ADDR_IN : TE_ADDR_NONE,
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.addr = c->out_subprefix,
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},
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};
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ASSERT(c->channel_state == CS_UP);
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@ -752,11 +757,30 @@ channel_refeed_prefilter(const struct rt_prefilter *p, const net_addr *n)
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for (struct channel_feeding_request *cfr = c->refeeding; cfr; cfr = cfr->next)
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if (!cfr->trie || trie_match_net(cfr->trie, n))
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{
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log(L_TRACE "Export this one");
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return 1;
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}
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log(L_TRACE "%N filtered out of export", n);
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return 0;
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}
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static int
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channel_import_prefilter(const struct rt_prefilter *p, const net_addr *n)
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{
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const struct channel *c =
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SKIP_BACK(struct channel, reload_req,
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SKIP_BACK(struct rt_export_request, prefilter, p)
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);
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for (struct channel_import_request *cir = c->importing; cir; cir = cir->next)
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if (!cir->trie || trie_match_net(cir->trie, n))
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{
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log(L_TRACE "Export this one");
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return 1;
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}
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log(L_TRACE "%N filtered out of import", n);
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return 0;
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}
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static void
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channel_feed_end(struct channel *c)
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@ -808,18 +832,44 @@ channel_feed_end(struct channel *c)
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/* Called by protocol for reload from in_table */
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void
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channel_schedule_reload(struct channel *c)
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channel_schedule_reload(struct channel *c, struct channel_import_request *cir)
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{
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log(L_TRACE "channel_schedule_reload %i %i",cir, (cir && cir->trie));
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ASSERT(c->in_req.hook);
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if (c->reload_req.hook)
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int no_trie = 0;
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if (cir)
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{
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struct channel_import_request* last = c->import_pending;
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while (last)
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{
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if (!last->trie)
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no_trie = 1;
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last = last->next;
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}
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last = cir;
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no_trie = !last->trie;
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}
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if (c->reload_req.hook)
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{
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CD(c, "Reload triggered before the previous one has finished");
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c->reload_pending = 1;
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return;
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}
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c->importing = c->import_pending;
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c->import_pending = NULL;
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if (no_trie)
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{
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c->reload_req.prefilter.mode = TE_ADDR_NONE;
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c->reload_req.prefilter.hook = NULL;
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}
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else
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{
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CD(c, "Import with trie");
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c->reload_req.prefilter.mode = TE_ADDR_HOOK;
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c->reload_req.prefilter.hook = channel_import_prefilter;
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}
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rt_refresh_begin(&c->in_req);
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rt_request_export(c->table, &c->reload_req);
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}
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@ -1081,12 +1131,32 @@ channel_request_reload(struct channel *c)
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CD(c, "Reload requested");
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if ((c->in_keep & RIK_PREFILTER) == RIK_PREFILTER)
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channel_schedule_reload(c);
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if ((c->in_keep & RIK_PREFILTER) == RIK_PREFILTER) {
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struct channel_import_request* cir = mb_alloc(c->proto->pool, sizeof *cir);;
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cir->trie = NULL;
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channel_schedule_reload(c, cir);
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}
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else
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c->proto->reload_routes(c);
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}
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static void
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channel_request_partial_reload(struct channel *c, struct channel_import_request *cir)
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{
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ASSERT(c->in_req.hook);
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ASSERT(channel_reloadable(c));
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CD(c, "Partial import reload requested");
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if ((c->in_keep & RIK_PREFILTER) == RIK_PREFILTER)
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channel_schedule_reload(c, cir);
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/* TODO*/
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else
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CD(c, "Partial import reload requested, but with ric cosi");
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/*c->proto->reload_routes(c);
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*/
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}
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const struct channel_class channel_basic = {
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.channel_size = sizeof(struct channel),
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.config_size = sizeof(struct channel_config)
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@ -2681,6 +2751,11 @@ struct channel_cmd_reload_feeding_request {
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struct proto_reload_request *prr;
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};
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struct channel_cmd_reload_import_request {
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struct channel_import_request cir;
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struct proto_reload_request *prr;
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};
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static void
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channel_reload_out_done_main(void *_prr)
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{
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@ -2698,6 +2773,14 @@ channel_reload_out_done(struct channel_feeding_request *cfr)
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ev_send_loop(&main_birdloop, &ccrfr->prr->ev);
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}
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static void
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channel_reload_in_done(struct channel_import_request *cir)
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{
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struct channel_cmd_reload_import_request *ccrir = SKIP_BACK(struct channel_cmd_reload_import_request, cir, cir);
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if (atomic_fetch_sub_explicit(&ccrir->prr->counter, 1, memory_order_acq_rel) == 1)
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ev_send_loop(&main_birdloop, &ccrir->prr->ev);
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}
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void
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proto_cmd_reload(struct proto *p, uintptr_t _prr, int cnt UNUSED)
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{
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@ -2729,7 +2812,37 @@ proto_cmd_reload(struct proto *p, uintptr_t _prr, int cnt UNUSED)
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if (prr->dir != CMD_RELOAD_OUT)
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WALK_LIST(c, p->channels)
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if (c->channel_state == CS_UP)
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channel_request_reload(c);
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{
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if (prr->trie)
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{
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/* Increase the refeed counter */
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if (atomic_fetch_add_explicit(&prr->counter, 1, memory_order_relaxed) == 0)
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{
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/* First occurence */
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ASSERT_DIE(this_cli->parser_pool == prr->trie->lp);
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rmove(this_cli->parser_pool, &root_pool);
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this_cli->parser_pool = lp_new(this_cli->pool);
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prr->ev = (event) {
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.hook = channel_reload_out_done_main,
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.data = prr,
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};
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}
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else
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ASSERT_DIE(this_cli->parser_pool != prr->trie->lp);
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struct channel_cmd_reload_import_request *req = lp_alloc(prr->trie->lp, sizeof *req);
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*req = (struct channel_cmd_reload_import_request) {
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.cir = {
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.done = channel_reload_in_done,
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.trie = prr->trie,
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},
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.prr = prr,
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};
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channel_request_partial_reload(c, &req->cir);
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}
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else
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channel_request_reload(c);
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}
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/* re-exporting routes */
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if (prr->dir != CMD_RELOAD_IN)
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@ -581,6 +581,8 @@ struct channel {
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struct f_trie *refeed_trie; /* Auxiliary refeed trie */
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struct channel_feeding_request *refeeding; /* Refeeding the channel */
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struct channel_feeding_request *refeed_pending; /* Scheduled refeeds */
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struct channel_import_request *importing; /* Importing the channel */
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struct channel_import_request *import_pending; /* Scheduled imports */
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uint feed_block_size; /* How many routes to feed at once */
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@ -677,7 +679,7 @@ struct channel *proto_add_channel(struct proto *p, struct channel_config *cf);
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int proto_configure_channel(struct proto *p, struct channel **c, struct channel_config *cf);
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void channel_set_state(struct channel *c, uint state);
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void channel_schedule_reload(struct channel *c);
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void channel_schedule_reload(struct channel *c, struct channel_import_request *cir);
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static inline void channel_init(struct channel *c) { channel_set_state(c, CS_START); }
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static inline void channel_open(struct channel *c) { channel_set_state(c, CS_UP); }
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@ -698,6 +700,12 @@ struct channel_feeding_request {
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} state;
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};
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struct channel_import_request {
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struct channel_import_request *next; /* Next in request chain */
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void (*done)(struct channel_import_request *); /* Called when import finishes */
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const struct f_trie *trie; /* Reload only matching nets */
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};
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struct channel *channel_from_export_request(struct rt_export_request *req);
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void channel_request_feeding(struct channel *c, struct channel_feeding_request *);
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void channel_request_feeding_dynamic(struct channel *c, enum channel_feeding_request_type);
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@ -2212,7 +2212,7 @@ rt_table_export_start_feed(struct rtable_private *tab, struct rt_table_export_ho
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{
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struct rt_exporter *re = &tab->exporter.e;
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struct rt_export_request *req = hook->h.req;
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log("Hook is %x", hook);
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/* stats zeroed by mb_allocz */
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switch (req->prefilter.mode)
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{
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@ -2230,6 +2230,7 @@ rt_table_export_start_feed(struct rtable_private *tab, struct rt_table_export_ho
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case TE_ADDR_NONE:
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case TE_ADDR_TRIE:
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case TE_ADDR_HOOK:
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log(L_TRACE "hook - we will feed by fib, not trie?");
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FIB_ITERATE_INIT(&hook->feed_fit, &tab->fib);
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hook->h.event.hook = rt_feed_by_fib;
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break;
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@ -4403,6 +4404,7 @@ rt_process_feed(struct rt_table_export_hook *c, rt_feed_block *b)
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static void
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rt_feed_by_fib(void *data)
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{
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log(L_TRACE "rt_feed_by_fib_function - here filtering starts");
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struct rt_table_export_hook *c = data;
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struct fib_iterator *fit = &c->feed_fit;
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rt_feed_block block = {};
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@ -4546,6 +4548,7 @@ void channel_reload_export_bulk(struct rt_export_request *req, const net_addr *n
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while (new.attrs->next)
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new.attrs = new.attrs->next;
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log(L_TRACE "chanel_reload_export_bulk %N", net);
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/* And reload the route */
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rte_update(c, net, &new, new.src);
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}
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35
nest/rt.h
35
nest/rt.h
@ -253,10 +253,28 @@ struct rte_storage {
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/* Table-channel connections */
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struct rt_prefilter {
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union {
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const struct f_trie *trie;
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const net_addr *addr; /* Network prefilter address */
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int (*hook)(const struct rt_prefilter *, const net_addr *);
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};
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/* Network prefilter mode (TE_ADDR_*) */
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enum {
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TE_ADDR_NONE = 0, /* No address matching */
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TE_ADDR_EQUAL, /* Exact query - show route <addr> */
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TE_ADDR_FOR, /* Longest prefix match - show route for <addr> */
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TE_ADDR_IN, /* Interval query - show route in <addr> */
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TE_ADDR_TRIE, /* Query defined by trie */
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TE_ADDR_HOOK, /* Query processed by supplied custom hook */
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} mode;
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} PACKED;
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struct rt_import_request {
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struct rt_import_hook *hook; /* The table part of importer */
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char *name;
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u8 trace_routes;
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struct rt_prefilter prefilter;
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event_list *list; /* Where to schedule announce events */
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@ -300,23 +318,6 @@ struct rt_pending_export {
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u64 seq; /* Sequential ID (table-local) of the pending export */
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};
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struct rt_prefilter {
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union {
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const struct f_trie *trie;
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const net_addr *addr; /* Network prefilter address */
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int (*hook)(const struct rt_prefilter *, const net_addr *);
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};
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/* Network prefilter mode (TE_ADDR_*) */
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enum {
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TE_ADDR_NONE = 0, /* No address matching */
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TE_ADDR_EQUAL, /* Exact query - show route <addr> */
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TE_ADDR_FOR, /* Longest prefix match - show route for <addr> */
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TE_ADDR_IN, /* Interval query - show route in <addr> */
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TE_ADDR_TRIE, /* Query defined by trie */
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TE_ADDR_HOOK, /* Query processed by supplied custom hook */
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} mode;
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} PACKED;
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struct rt_export_request {
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struct rt_export_hook *hook; /* Table part of the export */
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char *name; /* Network prefilter address */
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