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-rw-r--r--drivers/net/sfc/sfc_tso.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/sfc/sfc_tso.h b/drivers/net/sfc/sfc_tso.h
new file mode 100644
index 00000000..3d2faf54
--- /dev/null
+++ b/drivers/net/sfc/sfc_tso.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2018 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ */
+
+/** Standard TSO header length */
+#define SFC_TSOH_STD_LEN 256
+
+/** The number of TSO option descriptors that precede the packet descriptors */
+#define SFC_TSO_OPT_DESCS_NUM 2
+
+/**
+ * The number of DMA descriptors for TSO header that may or may not precede the
+ * packet's payload descriptors
+ */
+#define SFC_TSO_HDR_DESCS_NUM 1
+
+unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len,
+ struct rte_mbuf **in_seg, size_t *in_off);