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authorJiri Pirko <jiri@mellanox.com>2016-09-26 12:52:33 +0200
committerDavid S. Miller <davem@davemloft.net>2016-09-28 10:48:00 +0200
commit347e3b28c1ba24c1ae2f30290d8247480ab9ce14 (patch)
treeb84cd9ae18da57455f7e3ede13c2ef6522eecff8 /net/ipv4
parentrocker: use FIB notifications instead of switchdev calls (diff)
downloadlinux-347e3b28c1ba24c1ae2f30290d8247480ab9ce14.tar.xz
linux-347e3b28c1ba24c1ae2f30290d8247480ab9ce14.zip
switchdev: remove FIB offload infrastructure
Since this is now taken care of by FIB notifier, remove the code, with all unused dependencies. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fib_frontend.c13
-rw-r--r--net/ipv4/fib_rules.c2
-rw-r--r--net/ipv4/fib_trie.c104
3 files changed, 1 insertions, 118 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 86c43dc9a60e..c3b80478226e 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -189,19 +189,6 @@ static void fib_flush(struct net *net)
rt_cache_flush(net);
}
-void fib_flush_external(struct net *net)
-{
- struct fib_table *tb;
- struct hlist_head *head;
- unsigned int h;
-
- for (h = 0; h < FIB_TABLE_HASHSZ; h++) {
- head = &net->ipv4.fib_table_hash[h];
- hlist_for_each_entry(tb, head, tb_hlist)
- fib_table_flush_external(tb);
- }
-}
-
/*
* Find address type as if only "dev" was present in the system. If
* on_dev is NULL then all interfaces are taken into consideration.
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index ebadf6b99499..2e50062f642d 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -228,7 +228,6 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
rule4->tos = frh->tos;
net->ipv4.fib_has_custom_rules = true;
- fib_flush_external(rule->fr_net);
call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD);
err = 0;
@@ -251,7 +250,6 @@ static int fib4_rule_delete(struct fib_rule *rule)
net->ipv4.fib_num_tclassid_users--;
#endif
net->ipv4.fib_has_custom_rules = true;
- fib_flush_external(rule->fr_net);
call_fib_rule_notifiers(net, FIB_EVENT_RULE_DEL);
errout:
return err;
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 51a4537eb145..31cef3602585 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -81,7 +81,6 @@
#include <net/tcp.h>
#include <net/sock.h>
#include <net/ip_fib.h>
-#include <net/switchdev.h>
#include <trace/events/fib.h>
#include "fib_lookup.h"
@@ -1215,17 +1214,6 @@ int fib_table_insert(struct net *net, struct fib_table *tb,
new_fa->tb_id = tb->tb_id;
new_fa->fa_default = -1;
- err = switchdev_fib_ipv4_add(key, plen, fi,
- new_fa->fa_tos,
- cfg->fc_type,
- cfg->fc_nlflags,
- tb->tb_id);
- if (err) {
- switchdev_fib_ipv4_abort(fi);
- kmem_cache_free(fn_alias_kmem, new_fa);
- goto out;
- }
-
hlist_replace_rcu(&fa->fa_list, &new_fa->fa_list);
alias_free_mem_rcu(fa);
@@ -1273,18 +1261,10 @@ int fib_table_insert(struct net *net, struct fib_table *tb,
new_fa->tb_id = tb->tb_id;
new_fa->fa_default = -1;
- /* (Optionally) offload fib entry to switch hardware. */
- err = switchdev_fib_ipv4_add(key, plen, fi, tos, cfg->fc_type,
- cfg->fc_nlflags, tb->tb_id);
- if (err) {
- switchdev_fib_ipv4_abort(fi);
- goto out_free_new_fa;
- }
-
/* Insert new entry to the list. */
err = fib_insert_alias(t, tp, l, new_fa, fa, key);
if (err)
- goto out_sw_fib_del;
+ goto out_free_new_fa;
if (!plen)
tb->tb_num_default++;
@@ -1297,8 +1277,6 @@ int fib_table_insert(struct net *net, struct fib_table *tb,
succeeded:
return 0;
-out_sw_fib_del:
- switchdev_fib_ipv4_del(key, plen, fi, tos, cfg->fc_type, tb->tb_id);
out_free_new_fa:
kmem_cache_free(fn_alias_kmem, new_fa);
out:
@@ -1591,9 +1569,6 @@ int fib_table_delete(struct net *net, struct fib_table *tb,
if (!fa_to_delete)
return -ESRCH;
- switchdev_fib_ipv4_del(key, plen, fa_to_delete->fa_info, tos,
- cfg->fc_type, tb->tb_id);
-
call_fib_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, key, plen,
fa_to_delete->fa_info, tos, cfg->fc_type,
tb->tb_id, 0);
@@ -1785,80 +1760,6 @@ out:
return NULL;
}
-/* Caller must hold RTNL */
-void fib_table_flush_external(struct fib_table *tb)
-{
- struct trie *t = (struct trie *)tb->tb_data;
- struct key_vector *pn = t->kv;
- unsigned long cindex = 1;
- struct hlist_node *tmp;
- struct fib_alias *fa;
-
- /* walk trie in reverse order */
- for (;;) {
- unsigned char slen = 0;
- struct key_vector *n;
-
- if (!(cindex--)) {
- t_key pkey = pn->key;
-
- /* cannot resize the trie vector */
- if (IS_TRIE(pn))
- break;
-
- /* resize completed node */
- pn = resize(t, pn);
- cindex = get_index(pkey, pn);
-
- continue;
- }
-
- /* grab the next available node */
- n = get_child(pn, cindex);
- if (!n)
- continue;
-
- if (IS_TNODE(n)) {
- /* record pn and cindex for leaf walking */
- pn = n;
- cindex = 1ul << n->bits;
-
- continue;
- }
-
- hlist_for_each_entry_safe(fa, tmp, &n->leaf, fa_list) {
- struct fib_info *fi = fa->fa_info;
-
- /* if alias was cloned to local then we just
- * need to remove the local copy from main
- */
- if (tb->tb_id != fa->tb_id) {
- hlist_del_rcu(&fa->fa_list);
- alias_free_mem_rcu(fa);
- continue;
- }
-
- /* record local slen */
- slen = fa->fa_slen;
-
- if (!fi || !(fi->fib_flags & RTNH_F_OFFLOAD))
- continue;
-
- switchdev_fib_ipv4_del(n->key, KEYLENGTH - fa->fa_slen,
- fi, fa->fa_tos, fa->fa_type,
- tb->tb_id);
- }
-
- /* update leaf slen */
- n->slen = slen;
-
- if (hlist_empty(&n->leaf)) {
- put_child_root(pn, n->key, NULL);
- node_free(n);
- }
- }
-}
-
/* Caller must hold RTNL. */
int fib_table_flush(struct net *net, struct fib_table *tb)
{
@@ -1909,9 +1810,6 @@ int fib_table_flush(struct net *net, struct fib_table *tb)
continue;
}
- switchdev_fib_ipv4_del(n->key, KEYLENGTH - fa->fa_slen,
- fi, fa->fa_tos, fa->fa_type,
- tb->tb_id);
call_fib_entry_notifiers(net, FIB_EVENT_ENTRY_DEL,
n->key,
KEYLENGTH - fa->fa_slen,