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authorAndrew Yourtchenko <ayourtch@gmail.com>2017-08-08 20:10:12 +0200
committerAndrew Yourtchenko <ayourtch@gmail.com>2017-08-10 11:09:50 +0200
commite6423bef32ca2ffcfcd7a092eb4673badd53ea4c (patch)
treea9e62142c15ae9d7c5c575c4aa7271793ce2c5a3 /src/plugins/acl/hash_lookup.c
parent754370f1b55d4102d21dd94676f2bda3170c7df0 (diff)
acl-plugin: avoid crash in multithreaded setup adding/deleting ACLs with traffic (VPP-910/VPP-929)
The commit fixing the VPP-910 and separating the memory operations into separate heaps has missed setting the MHEAP_FLAG_THREAD_SAFE, which quite obviously caused the issues in the multithread setup. Fix that. Also, add the debug CLIs "set acl-plugin heap {main|hash} {validate|trace} {1|0}" to toggle the memory instrumentation, in case we ever need it in the future. Change-Id: I8bd4f7978613f5ea75a030cfb90674dac34ae7bf Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
Diffstat (limited to 'src/plugins/acl/hash_lookup.c')
-rw-r--r--src/plugins/acl/hash_lookup.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/plugins/acl/hash_lookup.c b/src/plugins/acl/hash_lookup.c
index a337eb84586..ae522d921cc 100644
--- a/src/plugins/acl/hash_lookup.c
+++ b/src/plugins/acl/hash_lookup.c
@@ -269,12 +269,41 @@ hash_acl_set_heap(acl_main_t *am)
{
if (0 == am->hash_lookup_mheap) {
am->hash_lookup_mheap = mheap_alloc (0 /* use VM */ , 2 << 25);
+ mheap_t *h = mheap_header (am->hash_lookup_mheap);
+ h->flags |= MHEAP_FLAG_THREAD_SAFE;
}
void *oldheap = clib_mem_set_heap(am->hash_lookup_mheap);
return oldheap;
}
void
+acl_plugin_hash_acl_set_validate_heap(acl_main_t *am, int on)
+{
+ clib_mem_set_heap(hash_acl_set_heap(am));
+ mheap_t *h = mheap_header (am->hash_lookup_mheap);
+ if (on) {
+ h->flags |= MHEAP_FLAG_VALIDATE;
+ h->flags &= ~MHEAP_FLAG_SMALL_OBJECT_CACHE;
+ mheap_validate(h);
+ } else {
+ h->flags &= ~MHEAP_FLAG_VALIDATE;
+ h->flags |= MHEAP_FLAG_SMALL_OBJECT_CACHE;
+ }
+}
+
+void
+acl_plugin_hash_acl_set_trace_heap(acl_main_t *am, int on)
+{
+ clib_mem_set_heap(hash_acl_set_heap(am));
+ mheap_t *h = mheap_header (am->hash_lookup_mheap);
+ if (on) {
+ h->flags |= MHEAP_FLAG_TRACE;
+ } else {
+ h->flags &= ~MHEAP_FLAG_TRACE;
+ }
+}
+
+void
hash_acl_apply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
{
int i;