1 files changed, 41 insertions, 0 deletions
diff --git a/src/seastar/dpdk/lib/librte_ipsec/misc.h b/src/seastar/dpdk/lib/librte_ipsec/misc.h
new file mode 100644
index 000000000..693a4afdd
--- /dev/null
+++ b/src/seastar/dpdk/lib/librte_ipsec/misc.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef _MISC_H_
+#define _MISC_H_
+
+/**
+ * @file misc.h
+ * Contains miscellaneous functions/structures/macros used internally
+ * by ipsec library.
+ */
+
+/*
+ * Move bad (unprocessed) mbufs beyond the good (processed) ones.
+ * bad_idx[] contains the indexes of bad mbufs inside the mb[].
+ */
+static inline void
+move_bad_mbufs(struct rte_mbuf *mb[], const uint32_t bad_idx[], uint32_t nb_mb,
+	uint32_t nb_bad)
+{
+	uint32_t i, j, k;
+	struct rte_mbuf *drb[nb_bad];
+
+	j = 0;
+	k = 0;
+
+	/* copy bad ones into a temp place */
+	for (i = 0; i != nb_mb; i++) {
+		if (j != nb_bad && i == bad_idx[j])
+			drb[j++] = mb[i];
+		else
+			mb[k++] = mb[i];
+	}
+
+	/* copy bad ones after the good ones */
+	for (i = 0; i != nb_bad; i++)
+		mb[k + i] = drb[i];
+}
+
+#endif /* _MISC_H_ */