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From: <stefanc@marvell.com>
To: <netdev@vger.kernel.org>
Cc: <thomas.petazzoni@bootlin.com>, <davem@davemloft.net>,
	<nadavh@marvell.com>, <ymarkman@marvell.com>,
	<linux-kernel@vger.kernel.org>, <stefanc@marvell.com>,
	<kuba@kernel.org>, <linux@armlinux.org.uk>, <mw@semihalf.com>,
	<andrew@lunn.ch>, <rmk+kernel@armlinux.org.uk>,
	<atenart@redhat.com>
Subject: [PATCH net v2] net: mvpp2: prs: fix PPPoE with ipv6 packet parse
Date: Thu, 17 Dec 2020 20:37:46 +0200	[thread overview]
Message-ID: <1608230266-22111-1-git-send-email-stefanc@marvell.com> (raw)

From: Stefan Chulski <stefanc@marvell.com>

Current PPPoE+IPv6 entry is jumping to 'next-hdr'
field and not to 'DIP' field as done for IPv4.

Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit")
Reported-by: Liron Himi <lironh@marvell.com>
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
---

Changes in v2:
- Fix "fixes tag"

 drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c
index b9e5b08..1a272c2 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c
@@ -1655,8 +1655,9 @@ static int mvpp2_prs_pppoe_init(struct mvpp2 *priv)
 	mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
 	mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
 				 MVPP2_PRS_RI_L3_PROTO_MASK);
-	/* Skip eth_type + 4 bytes of IPv6 header */
-	mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
+	/* Jump to DIP of IPV6 header */
+	mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
+				 MVPP2_MAX_L3_ADDR_SIZE,
 				 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
 	/* Set L3 offset */
 	mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
-- 
1.9.1


             reply	other threads:[~2020-12-17 18:40 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-17 18:37 stefanc [this message]
2020-12-19 18:30 ` [PATCH net v2] net: mvpp2: prs: fix PPPoE with ipv6 packet parse patchwork-bot+netdevbpf

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