From c5d4317ad0425d01893dbb4afad9f16c2cde077d Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Mon, 30 Jul 2018 08:04:40 -0700 Subject: FIB: return entry prefix by const reference to avoid the copy Change-Id: I09b8406168df4b6b28df3ede24ee839681be0195 Signed-off-by: Neale Ranns --- src/vnet/fib/fib_attached_export.c | 19 ++++++------------- src/vnet/fib/fib_entry.c | 14 +++++--------- src/vnet/fib/fib_entry.h | 3 +-- src/vnet/fib/fib_entry_cover.c | 8 ++++---- src/vnet/fib/fib_path.c | 5 +---- src/vnet/fib/fib_table.c | 6 +++--- src/vnet/fib/fib_test.c | 16 ++++++++-------- src/vnet/fib/ip4_fib.c | 8 +++----- 8 files changed, 31 insertions(+), 48 deletions(-) (limited to 'src/vnet/fib') diff --git a/src/vnet/fib/fib_attached_export.c b/src/vnet/fib/fib_attached_export.c index 3b8c6b43542..e522db44570 100644 --- a/src/vnet/fib/fib_attached_export.c +++ b/src/vnet/fib/fib_attached_export.c @@ -126,7 +126,6 @@ static void fib_entry_import_remove (fib_ae_import_t *import, fib_node_index_t entry_index) { - fib_prefix_t prefix; u32 index; /* @@ -139,10 +138,8 @@ fib_entry_import_remove (fib_ae_import_t *import, /* * this is an entry that was previsouly imported */ - fib_entry_get_prefix(entry_index, &prefix); - fib_table_entry_special_remove(import->faei_import_fib, - &prefix, + fib_entry_get_prefix(entry_index), FIB_SOURCE_AE); fib_entry_unlock(entry_index); @@ -155,7 +152,7 @@ fib_entry_import_add (fib_ae_import_t *import, fib_node_index_t entry_index) { fib_node_index_t *existing; - fib_prefix_t prefix; + const fib_prefix_t *prefix; /* * ensure we only add the exported entry once, since @@ -173,12 +170,12 @@ fib_entry_import_add (fib_ae_import_t *import, * this is the first time this export entry has been imported * Add it to the import FIB and to the list of importeds */ - fib_entry_get_prefix(entry_index, &prefix); + prefix = fib_entry_get_prefix(entry_index); /* * don't import entries that have the same prefix the import entry */ - if (0 != fib_prefix_cmp(&prefix, + if (0 != fib_prefix_cmp(prefix, &import->faei_prefix)) { const dpo_id_t *dpo; @@ -188,7 +185,7 @@ fib_entry_import_add (fib_ae_import_t *import, if (dpo_id_is_valid(dpo) && !dpo_is_drop(dpo)) { fib_table_entry_special_dpo_add(import->faei_import_fib, - &prefix, + prefix, FIB_SOURCE_AE, (fib_entry_get_flags(entry_index) | FIB_ENTRY_FLAG_EXCLUSIVE), @@ -337,12 +334,8 @@ fib_attached_export_purge (fib_entry_t *fib_entry) */ vec_foreach(import_index, import->faei_importeds) { - fib_prefix_t prefix; - - fib_entry_get_prefix(*import_index, &prefix); - fib_table_entry_delete(import->faei_import_fib, - &prefix, + fib_entry_get_prefix(*import_index), FIB_SOURCE_AE); fib_entry_unlock(*import_index); } diff --git a/src/vnet/fib/fib_entry.c b/src/vnet/fib/fib_entry.c index a12edcb1867..655526586cb 100644 --- a/src/vnet/fib/fib_entry.c +++ b/src/vnet/fib/fib_entry.c @@ -1433,11 +1433,7 @@ fib_entry_get_best_source (fib_node_index_t entry_index) int fib_entry_is_host (fib_node_index_t fib_entry_index) { - fib_prefix_t pfx; - - fib_entry_get_prefix(fib_entry_index, &pfx); - - return (fib_prefix_is_host(&pfx)); + return (fib_prefix_is_host(fib_entry_get_prefix(fib_entry_index))); } /** @@ -1612,14 +1608,14 @@ fib_entry_encode (fib_node_index_t fib_entry_index, } } -void -fib_entry_get_prefix (fib_node_index_t fib_entry_index, - fib_prefix_t *pfx) +const fib_prefix_t * +fib_entry_get_prefix (fib_node_index_t fib_entry_index) { fib_entry_t *fib_entry; fib_entry = fib_entry_get(fib_entry_index); - *pfx = fib_entry->fe_prefix; + + return (&fib_entry->fe_prefix); } u32 diff --git a/src/vnet/fib/fib_entry.h b/src/vnet/fib/fib_entry.h index dcc310e8fbc..950f0dc7974 100644 --- a/src/vnet/fib/fib_entry.h +++ b/src/vnet/fib/fib_entry.h @@ -594,8 +594,7 @@ extern u32 fib_entry_get_resolving_interface_for_source( extern void fib_entry_encode(fib_node_index_t fib_entry_index, fib_route_path_encode_t **api_rpaths); -extern void fib_entry_get_prefix(fib_node_index_t fib_entry_index, - fib_prefix_t *pfx); +extern const fib_prefix_t *fib_entry_get_prefix(fib_node_index_t fib_entry_index); extern u32 fib_entry_get_fib_index(fib_node_index_t fib_entry_index); extern void fib_entry_set_source_data(fib_node_index_t fib_entry_index, fib_source_t source, diff --git a/src/vnet/fib/fib_entry_cover.c b/src/vnet/fib/fib_entry_cover.c index 814df578a62..ad12b94802a 100644 --- a/src/vnet/fib/fib_entry_cover.c +++ b/src/vnet/fib/fib_entry_cover.c @@ -133,12 +133,12 @@ fib_entry_cover_change_one (fib_entry_t *cover, } else if (new_cover != covered) { - fib_prefix_t pfx_covered, pfx_new_cover; + const fib_prefix_t *pfx_covered, *pfx_new_cover; - fib_entry_get_prefix(covered, &pfx_covered); - fib_entry_get_prefix(new_cover, &pfx_new_cover); + pfx_covered = fib_entry_get_prefix(covered); + pfx_new_cover = fib_entry_get_prefix(new_cover); - if (fib_prefix_is_cover(&pfx_new_cover, &pfx_covered)) + if (fib_prefix_is_cover(pfx_new_cover, pfx_covered)) { fib_entry_cover_changed(covered); } diff --git a/src/vnet/fib/fib_path.c b/src/vnet/fib/fib_path.c index 2912c6a76b7..47142284202 100644 --- a/src/vnet/fib/fib_path.c +++ b/src/vnet/fib/fib_path.c @@ -874,13 +874,10 @@ fib_path_unresolve (fib_path_t *path) case FIB_PATH_TYPE_RECURSIVE: if (FIB_NODE_INDEX_INVALID != path->fp_via_fib) { - fib_prefix_t pfx; - - fib_entry_get_prefix(path->fp_via_fib, &pfx); fib_entry_child_remove(path->fp_via_fib, path->fp_sibling); fib_table_entry_special_remove(path->recursive.fp_tbl_id, - &pfx, + fib_entry_get_prefix(path->fp_via_fib), FIB_SOURCE_RR); path->fp_via_fib = FIB_NODE_INDEX_INVALID; } diff --git a/src/vnet/fib/fib_table.c b/src/vnet/fib/fib_table.c index c37ac1dbd49..f63edaa76f0 100644 --- a/src/vnet/fib/fib_table.c +++ b/src/vnet/fib/fib_table.c @@ -877,12 +877,12 @@ void fib_table_entry_delete_index (fib_node_index_t fib_entry_index, fib_source_t source) { - fib_prefix_t prefix; + const fib_prefix_t *prefix; - fib_entry_get_prefix(fib_entry_index, &prefix); + prefix = fib_entry_get_prefix(fib_entry_index); fib_table_entry_delete_i(fib_entry_get_fib_index(fib_entry_index), - fib_entry_index, &prefix, source); + fib_entry_index, prefix, source); } fib_node_index_t diff --git a/src/vnet/fib/fib_test.c b/src/vnet/fib/fib_test.c index fb268e63d9e..112709e7cfe 100644 --- a/src/vnet/fib/fib_test.c +++ b/src/vnet/fib/fib_test.c @@ -665,7 +665,7 @@ fib_test_validate_entry (fib_node_index_t fei, ...) { dpo_id_t dpo = DPO_INVALID; - fib_prefix_t pfx; + const fib_prefix_t *pfx; index_t fw_lbi; u32 fib_index; va_list ap; @@ -674,7 +674,7 @@ fib_test_validate_entry (fib_node_index_t fei, va_start(ap, n_buckets); res = 0; - fib_entry_get_prefix(fei, &pfx); + pfx = fib_entry_get_prefix(fei); fib_index = fib_entry_get_fib_index(fei); fib_entry_contribute_forwarding(fei, fct, &dpo); @@ -691,7 +691,7 @@ fib_test_validate_entry (fib_node_index_t fei, FIB_TEST_LB((DPO_LOAD_BALANCE == dpo.dpoi_type), "%U Entry links to %U", - format_fib_prefix, &pfx, + format_fib_prefix, pfx, format_dpo_type, dpo.dpoi_type); lb = load_balance_get(dpo.dpoi_index); @@ -703,13 +703,13 @@ fib_test_validate_entry (fib_node_index_t fei, */ if (fct == fib_entry_get_default_chain_type(fib_entry_get(fei))) { - switch (pfx.fp_proto) + switch (pfx->fp_proto) { case FIB_PROTOCOL_IP4: - fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx.fp_addr.ip4); + fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx->fp_addr.ip4); break; case FIB_PROTOCOL_IP6: - fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx.fp_addr.ip6); + fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx->fp_addr.ip6); break; case FIB_PROTOCOL_MPLS: { @@ -717,8 +717,8 @@ fib_test_validate_entry (fib_node_index_t fei, .label_exp_s_ttl = 0, }; - vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx.fp_label); - vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx.fp_eos); + vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx->fp_label); + vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx->fp_eos); hdr.label_exp_s_ttl = clib_host_to_net_u32(hdr.label_exp_s_ttl); fw_lbi = mpls_fib_table_forwarding_lookup(fib_index, &hdr); diff --git a/src/vnet/fib/ip4_fib.c b/src/vnet/fib/ip4_fib.c index 01f4a755ec2..d8d983dd9c1 100644 --- a/src/vnet/fib/ip4_fib.c +++ b/src/vnet/fib/ip4_fib.c @@ -391,9 +391,7 @@ ip4_fib_table_fwding_dpo_remove (ip4_fib_t *fib, const dpo_id_t *dpo, u32 cover_index) { - fib_prefix_t cover_prefix = { - .fp_len = 0, - }; + const fib_prefix_t *cover_prefix; const dpo_id_t *cover_dpo; /* @@ -401,12 +399,12 @@ ip4_fib_table_fwding_dpo_remove (ip4_fib_t *fib, * covering prefix, so it can fill the plys with the correct replacement * for the entry being removed */ - fib_entry_get_prefix(cover_index, &cover_prefix); + cover_prefix = fib_entry_get_prefix(cover_index); cover_dpo = fib_entry_contribute_ip_forwarding(cover_index); ip4_fib_mtrie_route_del(&fib->mtrie, addr, len, dpo->dpoi_index, - cover_prefix.fp_len, + cover_prefix->fp_len, cover_dpo->dpoi_index); } -- cgit 1.2.3-korg