1 files changed, 81 insertions, 0 deletions
diff --git a/sys/dev/mlx5/mlx5_accel/mlx5_ipsec_rxtx.c b/sys/dev/mlx5/mlx5_accel/mlx5_ipsec_rxtx.c
new file mode 100644
index 000000000000..0883cfb2d510
--- /dev/null
+++ b/sys/dev/mlx5/mlx5_accel/mlx5_ipsec_rxtx.c
@@ -0,0 +1,81 @@
+/*-
+ * Copyright (c) 2023 NVIDIA corporation & affiliates.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netipsec/keydb.h>
+#include <netipsec/ipsec_offload.h>
+#include <dev/mlx5/qp.h>
+#include <dev/mlx5/mlx5_en/en.h>
+#include <dev/mlx5/mlx5_accel/ipsec.h>
+
+#define MLX5_IPSEC_METADATA_HANDLE(ipsec_metadata) (ipsec_metadata & 0xFFFFFF)
+
+int
+mlx5_accel_ipsec_rx_tag_add(if_t ifp, struct mlx5e_rq_mbuf *mr)
+{
+	struct mlx5e_priv *priv;
+	struct ipsec_accel_in_tag *mtag;
+
+	priv = if_getsoftc(ifp);
+	if (priv->ipsec == NULL)
+		return (0);
+	if (mr->ipsec_mtag != NULL)
+		return (0);
+
+	mtag = (struct ipsec_accel_in_tag *)m_tag_get(
+	    PACKET_TAG_IPSEC_ACCEL_IN, sizeof(*mtag), M_NOWAIT);
+	if (mtag == NULL)
+		return (-ENOMEM);
+	mr->ipsec_mtag = mtag;
+	return (0);
+}
+
+void
+mlx5e_accel_ipsec_handle_rx_cqe(struct mbuf *mb, struct mlx5_cqe64 *cqe,
+    struct mlx5e_rq_mbuf *mr)
+{
+	struct ipsec_accel_in_tag *mtag;
+	u32 drv_spi;
+
+	drv_spi = MLX5_IPSEC_METADATA_HANDLE(be32_to_cpu(cqe->ft_metadata));
+	mtag = mr->ipsec_mtag;
+	WARN_ON(mtag == NULL);
+	mr->ipsec_mtag = NULL;
+	if (mtag != NULL) {
+		mtag->drv_spi = drv_spi;
+		m_tag_prepend(mb, &mtag->tag);
+	}
+}
+
+void
+mlx5e_accel_ipsec_handle_tx_wqe(struct mbuf *mb, struct mlx5e_tx_wqe *wqe,
+    struct ipsec_accel_out_tag *tag)
+{
+	wqe->eth.flow_table_metadata = cpu_to_be32(
+	    mlx5e_accel_ipsec_get_metadata(tag->drv_spi));
+}