Add crypto_ia32 plugin

Currently this plugin provies AES CBC optimized code. Encryption code
supports parallel encryption of 4 buffers with different size and key
which improves performance 4x compared to standard serialized aproach.

On Skylake Server measured performance is around 0.71 clocks/byte with
256 buffers with size in range between 7000 and 8000 bytes.
Measured performance includes overhead of processing crypto ops.

Change-Id: I5ec2afee708fcdf16a4234926534dd64ff1155c3
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/src/plugins/crypto_ia32/main.c b/src/plugins/crypto_ia32/main.c
new file mode 100644
index 00000000000..9b83f8913db
--- /dev/null
+++ b/src/plugins/crypto_ia32/main.c
@@ -0,0 +1,70 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#include <vlib/vlib.h>
+#include <vnet/plugin/plugin.h>
+#include <vnet/crypto/crypto.h>
+#include <crypto_ia32/crypto_ia32.h>
+
+crypto_ia32_main_t crypto_ia32_main;
+
+clib_error_t *
+crypto_ia32_init (vlib_main_t * vm)
+{
+  crypto_ia32_main_t *cm = &crypto_ia32_main;
+  vlib_thread_main_t *tm = vlib_get_thread_main ();
+  clib_error_t *error;
+
+  if ((error = vlib_call_init_function (vm, vnet_crypto_init)))
+    return error;
+
+  vec_validate_aligned (cm->per_thread_data, tm->n_vlib_mains - 1,
+			CLIB_CACHE_LINE_BYTES);
+
+  cm->crypto_engine_index =
+    vnet_crypto_register_engine (vm, "ia32", 100,
+				 "Intel IA32 ISA Optimized Crypto");
+
+  if (clib_cpu_supports_x86_aes () &&
+      (error = crypto_ia32_aesni_cbc_init (vm)))
+    goto error;
+
+error:
+  if (error)
+    vec_free (cm->per_thread_data);
+
+  return error;
+}
+
+VLIB_INIT_FUNCTION (crypto_ia32_init);
+
+#include <vpp/app/version.h>
+
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER () = {
+  .version = VPP_BUILD_VER,
+  .description = "Intel AESNI Software Crypto Backend Plugin",
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */