app/testpmd: support IPv6 fragments

rte_flow update, following RFC [1], introduced has_frag_ext field for
IPv6 header item, used to indicate match on fragmented/non-fragmented
packets.
This patch updates testpmd CLI to support the new field.

To match on non-fragmented IPv6 packets, need to use pattern:
... ipv6 has_frag_ext spec 0 has_frag_ext mask 1 ...
To match on fragmented IPv6 packets, need to use pattern:
... ipv6 has_frag_ext spec 1 has_frag_ext mask 1 ...
To match on any IPv6 packets, the has_frag_ext field should
not be specified for match.

[1] https://mails.dpdk.org/archives/dev/2020-August/177257.html

Signed-off-by: Dekel Peled <dekelp@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>

diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 25e28fd..4043eac 100644 (file)
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -161,6 +161,7 @@ enum index {
        ITEM_IPV6_HOP,
        ITEM_IPV6_SRC,
        ITEM_IPV6_DST,
+       ITEM_IPV6_HAS_FRAG_EXT,
        ITEM_ICMP,
        ITEM_ICMP_TYPE,
        ITEM_ICMP_CODE,
@@ -963,6 +964,7 @@ static const enum index item_ipv6[] = {
        ITEM_IPV6_HOP,
        ITEM_IPV6_SRC,
        ITEM_IPV6_DST,
+       ITEM_IPV6_HAS_FRAG_EXT,
        ITEM_NEXT,
        ZERO,
 };
@@ -2345,6 +2347,13 @@ static const struct token token_list[] = {
                .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_ipv6,
                                             hdr.dst_addr)),
        },
+       [ITEM_IPV6_HAS_FRAG_EXT] = {
+               .name = "has_frag_ext",
+               .help = "fragment packet attribute",
+               .next = NEXT(item_ipv6, NEXT_ENTRY(UNSIGNED), item_param),
+               .args = ARGS(ARGS_ENTRY_BF(struct rte_flow_item_ipv6,
+                                          has_frag_ext, 1)),
+       },
        [ITEM_ICMP] = {
                .name = "icmp",
                .help = "match ICMP header",