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authorChristophe Fontaine <christophe.fontaine@enea.com>2017-05-31 11:27:19 +0200
committerDamjan Marion <dmarion.lists@gmail.com>2017-06-12 11:56:02 +0000
commitb4bd28a490012ecbce292561da404d4e9b02d24b (patch)
tree410ace570b86fb0f0d9138807b719edd3464a4ac /src/plugins/flowprobe/node.c
parentc9b622fbace7482c59f28fe516eefcb6acb83a1b (diff)
Remove calls to crc_u32 and add clib_crc32c for armv8+crc
crc_u32 was not defined for non x86_64 with SSE4.2 processors. Calls to "crc_u32" are removed and replaced by either a call to clib_crc32c or a call to clib_xxhash, as the result is not used as a check value but as a hash. Change-Id: I3af4d68e2e5ebd0c9b0a6090f848d043cb0f20a2 Signed-off-by: Christophe Fontaine <christophe.fontaine@enea.com>
Diffstat (limited to 'src/plugins/flowprobe/node.c')
-rw-r--r--src/plugins/flowprobe/node.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/plugins/flowprobe/node.c b/src/plugins/flowprobe/node.c
index 6a539db9bbf..80bfa9b584f 100644
--- a/src/plugins/flowprobe/node.c
+++ b/src/plugins/flowprobe/node.c
@@ -17,6 +17,7 @@
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/pg/pg.h>
+#include <vppinfra/crc32.h>
#include <vppinfra/error.h>
#include <flowprobe/flowprobe.h>
#include <vnet/ip/ip6_packet.h>
@@ -258,10 +259,16 @@ static inline u32
flowprobe_hash (flowprobe_key_t * k)
{
flowprobe_main_t *fm = &flowprobe_main;
- int i;
u32 h = 0;
- for (i = 0; i < sizeof (k->as_u32) / sizeof (u32); i++)
- h = crc_u32 (k->as_u32[i], h);
+
+#ifdef clib_crc32c_uses_intrinsics
+ h = clib_crc32c ((u8 *) k->as_u32, FLOWPROBE_KEY_IN_U32);
+#else
+ u64 tmp =
+ k->as_u32[0] ^ k->as_u32[1] ^ k->as_u32[2] ^ k->as_u32[3] ^ k->as_u32[4];
+ h = clib_xxhash (tmp);
+#endif
+
return h >> (32 - fm->ht_log2len);
}