[PATCH net] octeontx2-af: fix inner LC ltype match for RSS flowkey

[kmahammadraf]

From: Kiran Kumar K <kirankumark@xxxxxxxxxxx>

Inner LC ltypes differ from outer LC ltypes, but RSS flowkey programming
was using outer LC IP/IP6 ltype masks for inner IP keys.

For inner IPv4/IPv6, match only the base IP ltype and do not include
extension-header matches. Keep existing outer LC masks unchanged.

This fixes inner-tunnel RSS key calculation and prevents mismatches in
inner IP flow classification.

Signed-off-by: kmahammadraf <kmahammadraf@xxxxxxxxxxx>
Signed-off-by: Kiran Kumar K <kirankumark@xxxxxxxxxxx>
---
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 95f782d47927..9cace7c4c9e1 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -4112,9 +4112,12 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 		case NIX_FLOW_KEY_TYPE_INNR_IPV4:
 			field->lid = NPC_LID_LC;
 			field->ltype_match = NPC_LT_LC_IP;
+			field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
+
 			if (key_type == NIX_FLOW_KEY_TYPE_INNR_IPV4) {
 				field->lid = NPC_LID_LG;
 				field->ltype_match = NPC_LT_LG_TU_IP;
+				field->ltype_mask = 0xF;
 			}
 			field->hdr_offset = 12; /* SIP offset */
 			field->bytesm1 = 7; /* SIP + DIP, 8 bytes */
@@ -4133,16 +4136,18 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 					field->bytesm1 = 3; /* DIP, 4 bytes */
 				}
 			}
-			field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
 			keyoff_marker = false;
 			break;
 		case NIX_FLOW_KEY_TYPE_IPV6:
 		case NIX_FLOW_KEY_TYPE_INNR_IPV6:
 			field->lid = NPC_LID_LC;
 			field->ltype_match = NPC_LT_LC_IP6;
+			field->ltype_mask = NPC_LT_LC_IP6_MATCH_MSK;
+
 			if (key_type == NIX_FLOW_KEY_TYPE_INNR_IPV6) {
 				field->lid = NPC_LID_LG;
 				field->ltype_match = NPC_LT_LG_TU_IP6;
+				field->ltype_mask = 0xF;
 			}
 			field->hdr_offset = 8; /* SIP offset */
 			field->bytesm1 = 31; /* SIP + DIP, 32 bytes */
@@ -4162,7 +4167,6 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
 					field->bytesm1 = 15; /* DIP,16 bytes */
 				}
 			}
-			field->ltype_mask = NPC_LT_LC_IP6_MATCH_MSK;
 			break;
 		case NIX_FLOW_KEY_TYPE_TCP:
 		case NIX_FLOW_KEY_TYPE_UDP:
-- 
2.25.1