[v7,3/5] app/testpmd: support IPv4 fragments
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Message ID c3c24f1eca8f667c17e71f191a4c4580a43d22b5.1602692917.git.dekelp@nvidia.com
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show
Series
  • support match on L3 fragmented packets
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Context Check Description
ci/checkpatch success coding style OK

Commit Message

Dekel Peled Oct. 14, 2020, 4:35 p.m. UTC
This patch updates testpmd CLI to support fragment_offset field of
IPv4 header item.

To match on non-fragmented IPv4 packets, need to use pattern:
... ipv4 fragment_offset spec 0 fragment_offset mask 0x3fff ...
To match on fragmented IPv4 packets, need to use pattern:
... ipv4 fragment_offset spec 1 fragment_offset last 0x3fff
fragment_offset mask 0x3fff ...
(Use the full available range 1 to 0x3fff to include all possible
values.)
To match on any IPv4 packets, fragmented and non-fragmented,
the fragment_offset field should not be specified for match.

Signed-off-by: Dekel Peled <dekelp@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
---
 app/test-pmd/cmdline_flow.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Patch
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diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 32a9214..5c224d6 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -132,6 +132,7 @@  enum index {
 	ITEM_VLAN_INNER_TYPE,
 	ITEM_IPV4,
 	ITEM_IPV4_TOS,
+	ITEM_IPV4_FRAGMENT_OFFSET,
 	ITEM_IPV4_TTL,
 	ITEM_IPV4_PROTO,
 	ITEM_IPV4_SRC,
@@ -898,6 +899,7 @@  struct parse_action_priv {
 
 static const enum index item_ipv4[] = {
 	ITEM_IPV4_TOS,
+	ITEM_IPV4_FRAGMENT_OFFSET,
 	ITEM_IPV4_TTL,
 	ITEM_IPV4_PROTO,
 	ITEM_IPV4_SRC,
@@ -2154,6 +2156,13 @@  static int comp_set_sample_index(struct context *, const struct token *,
 		.args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_ipv4,
 					     hdr.type_of_service)),
 	},
+	[ITEM_IPV4_FRAGMENT_OFFSET] = {
+		.name = "fragment_offset",
+		.help = "fragmentation flags and fragment offset",
+		.next = NEXT(item_ipv4, NEXT_ENTRY(UNSIGNED), item_param),
+		.args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_ipv4,
+					     hdr.fragment_offset)),
+	},
 	[ITEM_IPV4_TTL] = {
 		.name = "ttl",
 		.help = "time to live",