netdev - [net-next 1/2] octeontx2-af: Limit KPU parsing for GTPU packets

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Date:   Fri, 24 Sep 2021 11:48:50 +0530
From:   <kirankumark@...vell.com>
To:     <sgoutham@...vell.com>, <lcherian@...vell.com>,
        <gakula@...vell.com>, <jerinj@...vell.com>, <hkelam@...vell.com>,
        <sbhatta@...vell.com>, <davem@...emloft.net>, <kuba@...nel.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     Kiran Kumar K <kirankumark@...vell.com>
Subject: [net-next 1/2] octeontx2-af: Limit KPU parsing for GTPU packets

From: Kiran Kumar K <kirankumark@...vell.com>

With current KPU profile, while parsing GTPU packets, GTPU payload
is also being parsed and GTPU PDU payload is being treated as IPV4
data, which is not correct. In case of GTPU packets, parsing should
be stopped after identifying the GTPU. Adding changes to limit KPU
profile parsing for GTPU payload.

Signed-off-by: Kiran Kumar K <kirankumark@...vell.com>
---
 .../marvell/octeontx2/af/npc_profile.h        | 21 ++-----------------
 1 file changed, 2 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
index 588822a0cf21..d651cccdb27d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
@@ -7492,15 +7492,6 @@ static struct npc_kpu_profile_cam kpu9_cam_entries[] = {
 		0x0000,
 		0x0000,
 	},
-	{
-		NPC_S_KPU9_GTPU, 0xff,
-		0x0000,
-		0x0000,
-		NPC_GTP_PT_GTP | NPC_GTP_VER1 | NPC_GTP_MT_G_PDU,
-		NPC_GTP_PT_MASK | NPC_GTP_VER_MASK | NPC_GTP_MT_MASK,
-		0x0000,
-		0x0000,
-	},
 	{
 		NPC_S_KPU9_GTPU, 0xff,
 		0x0000,
@@ -14335,16 +14326,8 @@ static struct npc_kpu_profile_action kpu9_action_entries[] = {
 	},
 	{
 		NPC_ERRLEV_RE, NPC_EC_NOERR,
-		8, 0, 6, 2, 0,
-		NPC_S_KPU12_TU_IP, 8, 1,
-		NPC_LID_LE, NPC_LT_LE_GTPU,
-		NPC_F_LE_L_GTPU_G_PDU,
-		0, 0, 0, 0,
-	},
-	{
-		NPC_ERRLEV_RE, NPC_EC_NOERR,
-		8, 0, 6, 2, 0,
-		NPC_S_KPU12_TU_IP, 8, 1,
+		8, 0, 6, 2, 1,
+		NPC_S_NA, 0, 1,
 		NPC_LID_LE, NPC_LT_LE_GTPU,
 		0,
 		0, 0, 0, 0,
-- 
2.25.1