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lib: fix IPv6 tunnel checksum

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When packet is flag of "PKT_TX_OUTER_IPV6", it also need to be
considered to be tunnel case, in order to calculate the correct
csum value.

Fixes: 2b76648872 ("net/e1000: add Tx preparation")
Cc: stable@dpdk.org

Signed-off-by: Jeff Guo <jia.guo@intel.com>
This commit is contained in:
Jeff Guo 2017-04-05 12:48:42 +08:00 committed by Thomas Monjalon
parent 60da774e6e
commit ff643f7d02
1 changed files with 2 additions and 1 deletions
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3
lib/librte_net/rte_net.h
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@ -120,7 +120,8 @@ rte_net_intel_cksum_flags_prepare(struct rte_mbuf *m, uint64_t ol_flags)
struct udp_hdr *udp_hdr;
uint64_t inner_l3_offset = m->l2_len;
if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
if ((ol_flags & PKT_TX_OUTER_IP_CKSUM) ||
(ol_flags & PKT_TX_OUTER_IPV6))
inner_l3_offset += m->outer_l2_len + m->outer_l3_len;
if ((ol_flags & PKT_TX_UDP_CKSUM) == PKT_TX_UDP_CKSUM) {