Feat : LWIP integration part1

Change-Id: Ia26c092d16579c6f845a021ba66bde106363883a
Signed-off-by: Swarup Nayak <swarupnpvt@gmail.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/stacks/lwip_stack/lwip_src/common/stackx_tx_box.c b/stacks/lwip_stack/lwip_src/common/stackx_tx_box.c
new file mode 100644
index 0000000..74673ad
--- /dev/null
+++ b/stacks/lwip_stack/lwip_src/common/stackx_tx_box.c
@@ -0,0 +1,64 @@
+/*
+*
+* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
+* 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 "stackxopts.h"
+#include "nstack_log.h"
+#include "stackx_tx_box.h"
+#include "nsfw_mt_config.h"
+
+#define MZ_STACKX_RING_NAME "VppTCP_Ring"
+#define MZ_STACKX_PRIORITY_RING_NAME "VppTCP_Priority%u_Ring"
+
+/*
+ * Given the stackx ring name template above, get the queue name
+ */
+const char *
+get_stackx_ring_name ()
+{
+  /* buffer for return value. Size calculated by %u being replaced
+   * by maximum 3 digits (plus an extra byte for safety) */
+  static char rbuffer[sizeof (MZ_STACKX_RING_NAME) + 16];
+
+  int retVal =
+    spl_snprintf (rbuffer, sizeof (rbuffer) - 1, MZ_STACKX_RING_NAME);
+
+  if (-1 == retVal)
+    {
+      NSPOL_LOGERR ("spl_snprintf failed]");
+      return NULL;
+    }
+
+  return rbuffer;
+}
+
+const char *
+get_stackx_priority_ring_name (unsigned priority)
+{
+  /* buffer for return value. Size calculated by %u being replaced
+   * by maximum 3 digits (plus an extra byte for safety) */
+  static char prbuffer[sizeof (MZ_STACKX_PRIORITY_RING_NAME) + 32];
+
+  int retVal = spl_snprintf (prbuffer, sizeof (prbuffer) - 1,
+                             MZ_STACKX_PRIORITY_RING_NAME, priority);
+
+  if (-1 == retVal)
+    {
+      NSPOL_LOGERR ("spl_snprintf failed]");
+      return NULL;
+    }
+
+  return prbuffer;
+}