patches for DPDK stable branches
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From: Lance Richardson <>
To: Declan Doherty <>,
	Pablo de Lara <>
Subject: [dpdk-stable] [PATCH] app/test: fix IPv6 header initialization
Date: Fri, 26 Mar 2021 12:37:32 -0400
Message-ID: <> (raw)

[-- Attachment #1: Type: text/plain, Size: 1335 bytes --]

Fix two issues found when writing PMD unit tests for HW ptype and
L4 checksum offload:

   - The version field in the IPv6 header was being set to zero,
     which prevented hardware from recognizing it as IPv6. The
     IP version field is now set to six.
   - The payload_len field was being initialized using host byte
     order, which (among other things) resulted in incorrect L4
     checksum computation. The payload_len field is now set using
     network (big-endian) byte order.

Fixes: 92073ef961ee ("bond: unit tests")

Signed-off-by: Lance Richardson <>
 app/test/packet_burst_generator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/test/packet_burst_generator.c b/app/test/packet_burst_generator.c
index f203f9d09e..8b390853a2 100644
--- a/app/test/packet_burst_generator.c
+++ b/app/test/packet_burst_generator.c
@@ -141,8 +141,8 @@ uint16_t
 initialize_ipv6_header(struct rte_ipv6_hdr *ip_hdr, uint8_t *src_addr,
 		uint8_t *dst_addr, uint16_t pkt_data_len)
-	ip_hdr->vtc_flow = 0;
-	ip_hdr->payload_len = pkt_data_len;
+	ip_hdr->vtc_flow = rte_cpu_to_be_32(0x60000000); /* Set version to 6. */
+	ip_hdr->payload_len = rte_cpu_to_be_16(pkt_data_len);
 	ip_hdr->proto = IPPROTO_UDP;
 	ip_hdr->hop_limits = IP_DEFTTL;

                 reply	other threads:[~2021-03-26 16:37 UTC|newest]

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