lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20210727132002.835130-6-sashal@kernel.org>
Date:   Tue, 27 Jul 2021 09:19:58 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Eric Woudstra <ericwouds@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.4 6/9] mt7530 fix mt7530_fdb_write vid missing ivl bit

From: Eric Woudstra <ericwouds@...il.com>

[ Upstream commit 11d8d98cbeef1496469b268d79938b05524731e8 ]

According to reference guides mt7530 (mt7620) and mt7531:

NOTE: When IVL is reset, MAC[47:0] and FID[2:0] will be used to
read/write the address table. When IVL is set, MAC[47:0] and CVID[11:0]
will be used to read/write the address table.

Since the function only fills in CVID and no FID, we need to set the
IVL bit. The existing code does not set it.

This is a fix for the issue I dropped here earlier:

http://lists.infradead.org/pipermail/linux-mediatek/2021-June/025697.html

With this patch, it is now possible to delete the 'self' fdb entry
manually. However, wifi roaming still has the same issue, the entry
does not get deleted automatically. Wifi roaming also needs a fix
somewhere else to function correctly in combination with vlan.

Signed-off-by: Eric Woudstra <ericwouds@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/dsa/mt7530.c | 1 +
 drivers/net/dsa/mt7530.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 071e5015bf91..04531b36b217 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -353,6 +353,7 @@ mt7530_fdb_write(struct mt7530_priv *priv, u16 vid,
 	int i;
 
 	reg[1] |= vid & CVID_MASK;
+	reg[1] |= ATA2_IVL;
 	reg[2] |= (aging & AGE_TIMER_MASK) << AGE_TIMER;
 	reg[2] |= (port_mask & PORT_MAP_MASK) << PORT_MAP;
 	/* STATIC_ENT indicate that entry is static wouldn't
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index 3ef7b5a6fc22..a9ef790578ba 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -43,6 +43,7 @@ enum {
 #define  STATIC_EMP			0
 #define  STATIC_ENT			3
 #define MT7530_ATA2			0x78
+#define  ATA2_IVL			BIT(15)
 
 /* Register for address table write data */
 #define MT7530_ATWD			0x7c
-- 
2.30.2

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ