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Date:   Mon, 26 Oct 2020 19:51:12 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Stanislaw Kardach <skardach@...vell.com>,
        Sunil Goutham <sgoutham@...vell.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.8 080/132] octeontx2-af: fix LD CUSTOM LTYPE aliasing

From: Stanislaw Kardach <skardach@...vell.com>

[ Upstream commit 450f0b978870c384dd81d1176088536555f3170e ]

Since LD contains LTYPE definitions tweaked toward efficient
NIX_AF_RX_FLOW_KEY_ALG(0..31)_FIELD(0..4) usage, the original location
of NPC_LT_LD_CUSTOM0/1 was aliased with MPLS_IN_* definitions.
Moving custom frame to value 6 and 7 removes the aliasing at the cost of
custom frames being also considered when TCP/UDP RSS algo is configured.

However since the goal of CUSTOM frames is to classify them to a
separate set of RQs, this cost is acceptable.

Signed-off-by: Stanislaw Kardach <skardach@...vell.com>
Acked-by: Sunil Goutham <sgoutham@...vell.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/marvell/octeontx2/af/npc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc.h b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
index 3803af9231c68..c0ff5f70aa431 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/npc.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
@@ -77,6 +77,8 @@ enum npc_kpu_ld_ltype {
 	NPC_LT_LD_ICMP,
 	NPC_LT_LD_SCTP,
 	NPC_LT_LD_ICMP6,
+	NPC_LT_LD_CUSTOM0,
+	NPC_LT_LD_CUSTOM1,
 	NPC_LT_LD_IGMP = 8,
 	NPC_LT_LD_ESP,
 	NPC_LT_LD_AH,
@@ -85,8 +87,6 @@ enum npc_kpu_ld_ltype {
 	NPC_LT_LD_NSH,
 	NPC_LT_LD_TU_MPLS_IN_NSH,
 	NPC_LT_LD_TU_MPLS_IN_IP,
-	NPC_LT_LD_CUSTOM0 = 0xE,
-	NPC_LT_LD_CUSTOM1 = 0xF,
 };
 
 enum npc_kpu_le_ltype {
-- 
2.25.1

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