From 15c010d365f8516119554a1faa8a3260464997d0 Mon Sep 17 00:00:00 2001
From: Satheesh Paul <psatheesh@marvell.com>
Date: Wed, 10 Jul 2024 13:21:27 +0530
Subject: [PATCH] octeontx2-af: fix issue with IPv4 match for RSS
[ Upstream commit 60795bbf047654c9f8ae88d34483233a56033578 ]
While performing RSS based on IPv4, packets with
IPv4 options are not being considered. Adding changes
to match both plain IPv4 and IPv4 with option header.
Fixes: 41a7aa7b800d ("octeontx2-af: NIX Rx flowkey configuration for RSS")
Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 279d93bb74a0..641f1d969bb7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -3309,6 +3309,8 @@ static int get_flowkey_alg_idx(struct nix_hw *nix_hw, u32 flow_cfg)
/* Mask to match ipv6(NPC_LT_LC_IP6) and ipv6 ext(NPC_LT_LC_IP6_EXT) */
#define NPC_LT_LC_IP6_MATCH_MSK ((~(NPC_LT_LC_IP6 ^ NPC_LT_LC_IP6_EXT)) & 0xf)
+/* Mask to match both ipv4(NPC_LT_LC_IP) and ipv4 ext(NPC_LT_LC_IP_OPT) */
+#define NPC_LT_LC_IP_MATCH_MSK ((~(NPC_LT_LC_IP ^ NPC_LT_LC_IP_OPT)) & 0xf)
static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
{
@@ -3379,7 +3381,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
field->hdr_offset = 9; /* offset */
field->bytesm1 = 0; /* 1 byte */
field->ltype_match = NPC_LT_LC_IP;
- field->ltype_mask = 0xF;
+ field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
break;
case NIX_FLOW_KEY_TYPE_IPV4:
case NIX_FLOW_KEY_TYPE_INNR_IPV4:
@@ -3406,8 +3408,7 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
field->bytesm1 = 3; /* DIP, 4 bytes */
}
}
-
- field->ltype_mask = 0xF; /* Match only IPv4 */
+ field->ltype_mask = NPC_LT_LC_IP_MATCH_MSK;
keyoff_marker = false;
break;
case NIX_FLOW_KEY_TYPE_IPV6: