X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fsfc%2Fsfc_tso.h;h=f081e856e1b164b86fcb97f7e0811a0a651ded04;hb=b8cf5ba549f23ca91b2c56d8e58566cbe6a18100;hp=3d2faf5492aaab68f3a175066c03aef4068c84fb;hpb=6bc985e4115534deae841c4eb1dd0735935f0d80;p=dpdk.git

diff --git a/drivers/net/sfc/sfc_tso.h b/drivers/net/sfc/sfc_tso.h
index 3d2faf5492..f081e856e1 100644
--- a/drivers/net/sfc/sfc_tso.h
+++ b/drivers/net/sfc/sfc_tso.h
@@ -1,23 +1,80 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
- * Copyright (c) 2018 Solarflare Communications Inc.
- * All rights reserved.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
+ * Copyright(c) 2018-2019 Solarflare Communications Inc.
  *
  * This software was jointly developed between OKTET Labs (under contract
  * for Solarflare) and Solarflare Communications, Inc.
  */
 
+#ifndef _SFC_TSO_H
+#define _SFC_TSO_H
+
+#include <rte_udp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** 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
+#define SFC_EF10_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
+#define SFC_EF10_TSO_HDR_DESCS_NUM	1
+
+static inline uint16_t
+sfc_tso_ip4_get_ipid(const uint8_t *pkt_hdrp, size_t ip_hdr_off)
+{
+	const struct rte_ipv4_hdr *ip_hdrp;
+	uint16_t ipid;
+
+	ip_hdrp = (const struct rte_ipv4_hdr *)(pkt_hdrp + ip_hdr_off);
+	rte_memcpy(&ipid, &ip_hdrp->packet_id, sizeof(ipid));
+
+	return rte_be_to_cpu_16(ipid);
+}
+
+static inline void
+sfc_tso_outer_udp_fix_len(const struct rte_mbuf *m, uint8_t *tsoh)
+{
+	rte_be16_t len = rte_cpu_to_be_16(m->l2_len + m->l3_len + m->l4_len +
+					  m->tso_segsz);
+
+	rte_memcpy(tsoh + m->outer_l2_len + m->outer_l3_len +
+		   offsetof(struct rte_udp_hdr, dgram_len),
+		   &len, sizeof(len));
+}
+
+static inline void
+sfc_tso_innermost_ip_fix_len(const struct rte_mbuf *m, uint8_t *tsoh,
+			     size_t iph_ofst)
+{
+	size_t ip_payload_len = m->l4_len + m->tso_segsz;
+	size_t field_ofst;
+	rte_be16_t len;
+
+	if (m->ol_flags & PKT_TX_IPV4) {
+		field_ofst = offsetof(struct rte_ipv4_hdr, total_length);
+		len = rte_cpu_to_be_16(m->l3_len + ip_payload_len);
+	} else {
+		field_ofst = offsetof(struct rte_ipv6_hdr, payload_len);
+		len = rte_cpu_to_be_16(ip_payload_len);
+	}
+
+	rte_memcpy(tsoh + iph_ofst + field_ofst, &len, sizeof(len));
+}
 
 unsigned int sfc_tso_prepare_header(uint8_t *tsoh, size_t header_len,
 				    struct rte_mbuf **in_seg, size_t *in_off);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* _SFC_TSO_H */