[dpdk-dev] [PATCH v2] net/ice: fix FDIR when SPI as input set for ESP flow

[Simei Su <simei.su@intel.com>]

FDIR can't work when SPI as inputset for both ESP over IP and ESP
over UDP flow. This patch fixes this issue by adding the corresponding
input set for ESP over IP and ESP over UDP when parsing input set. Also,
it adds input set bit for NAT_T_ESP to distinguish ESP over IP and ESP
over UDP.

Fixes: 70feafc1a3f2 ("net/ice: support ESP/NATT flow director to match outer IP")

Signed-off-by: Simei Su <simei.su@intel.com>

v2:
* Refine title and commit log to be more accurate.
* Correct spelling mistakes in commit log.
---
 drivers/net/ice/ice_fdir_filter.c  | 14 ++++++++++----
 drivers/net/ice/ice_generic_flow.h |  3 +++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ice/ice_fdir_filter.c b/drivers/net/ice/ice_fdir_filter.c
index 4f1aa39..82adb1f 100644
--- a/drivers/net/ice/ice_fdir_filter.c
+++ b/drivers/net/ice/ice_fdir_filter.c
@@ -100,11 +100,11 @@
 
 #define ICE_FDIR_INSET_IPV4_NATT_ESP (\
 	ICE_INSET_IPV4_SRC | ICE_INSET_IPV4_DST | \
-	ICE_INSET_ESP_SPI)
+	ICE_INSET_NAT_T_ESP_SPI)
 
 #define ICE_FDIR_INSET_IPV6_NATT_ESP (\
 	ICE_INSET_IPV6_SRC | ICE_INSET_IPV6_DST | \
-	ICE_INSET_ESP_SPI)
+	ICE_INSET_NAT_T_ESP_SPI)
 
 static struct ice_pattern_match_item ice_fdir_pattern_list[] = {
 	{pattern_ethertype,				ICE_FDIR_INSET_ETH,		ICE_INSET_NONE,			ICE_INSET_NONE},
@@ -951,6 +951,8 @@ ice_fdir_input_set_parse(uint64_t inset, enum ice_flow_field *field)
 		{ICE_INSET_GTPU_TEID, ICE_FLOW_FIELD_IDX_GTPU_IP_TEID},
 		{ICE_INSET_GTPU_QFI, ICE_FLOW_FIELD_IDX_GTPU_EH_QFI},
 		{ICE_INSET_VXLAN_VNI, ICE_FLOW_FIELD_IDX_VXLAN_VNI},
+		{ICE_INSET_ESP_SPI, ICE_FLOW_FIELD_IDX_ESP_SPI},
+		{ICE_INSET_NAT_T_ESP_SPI, ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI},
 	};
 
 	for (i = 0, j = 0; i < RTE_DIM(ice_inset_map); i++) {
@@ -2128,8 +2130,12 @@ ice_fdir_parse_pattern(__rte_unused struct ice_adapter *ad,
 			if (!(esp_spec && esp_mask))
 				break;
 
-			if (esp_mask->hdr.spi == UINT32_MAX)
-				*input_set |= ICE_INSET_ESP_SPI;
+			if (esp_mask->hdr.spi == UINT32_MAX) {
+				if (l4 == RTE_FLOW_ITEM_TYPE_UDP)
+					*input_set |= ICE_INSET_NAT_T_ESP_SPI;
+				else
+					*input_set |= ICE_INSET_ESP_SPI;
+			}
 
 			if (l3 == RTE_FLOW_ITEM_TYPE_IPV4)
 				filter->input.ip.v4.sec_parm_idx =
diff --git a/drivers/net/ice/ice_generic_flow.h b/drivers/net/ice/ice_generic_flow.h
index 0bd38d8..8845a3e 100644
--- a/drivers/net/ice/ice_generic_flow.h
+++ b/drivers/net/ice/ice_generic_flow.h
@@ -26,6 +26,7 @@
 #define ICE_PROT_AH			BIT_ULL(15)
 #define ICE_PROT_L2TPV3OIP		BIT_ULL(16)
 #define ICE_PROT_PFCP			BIT_ULL(17)
+#define ICE_PROT_NAT_T_ESP		BIT_ULL(18)
 
 /* field */
 
@@ -117,6 +118,8 @@
 	(ICE_PROT_PFCP | ICE_PFCP_S_FIELD)
 #define ICE_INSET_PFCP_SEID \
 	(ICE_PROT_PFCP | ICE_PFCP_S_FIELD | ICE_PFCP_SEID)
+#define ICE_INSET_NAT_T_ESP_SPI \
+	(ICE_PROT_NAT_T_ESP | ICE_ESP_SPI)
 
 /* empty pattern */
 extern enum rte_flow_item_type pattern_empty[];
-- 
2.9.5