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[193.12.47.89]) by smtp.gmail.com with ESMTPSA id y36sm3374769lfa.82.2022.01.31.07.47.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Jan 2022 07:47:05 -0800 (PST) From: Tobias Waldekranz To: davem@davemloft.net, kuba@kernel.org Cc: netdev@vger.kernel.org, Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , linux-kernel@vger.kernel.org Subject: [PATCH net-next 2/5] net: dsa: mv88e6xxx: Support policy entries in the VTU Date: Mon, 31 Jan 2022 16:46:52 +0100 Message-Id: <20220131154655.1614770-3-tobias@waldekranz.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220131154655.1614770-1-tobias@waldekranz.com> References: <20220131154655.1614770-1-tobias@waldekranz.com> MIME-Version: 1.0 Organization: Westermo Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A VTU entry with policy enabled is used in combination with a port's VTU policy setting to override normal switching behavior for frames assigned to the entry's VID. A typical example is to Treat all frames in a particular VLAN as control traffic, and trap them to the CPU. In which case the relevant user port's VTU policy would be set to TRAP. Signed-off-by: Tobias Waldekranz --- drivers/net/dsa/mv88e6xxx/chip.h | 1 + drivers/net/dsa/mv88e6xxx/global1.h | 1 + drivers/net/dsa/mv88e6xxx/global1_vtu.c | 5 ++++- 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h index 438cee853d07..80dc7b549e81 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.h +++ b/drivers/net/dsa/mv88e6xxx/chip.h @@ -179,6 +179,7 @@ struct mv88e6xxx_vtu_entry { u16 fid; u8 sid; bool valid; + bool policy; u8 member[DSA_MAX_PORTS]; u8 state[DSA_MAX_PORTS]; }; diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h index 4f3dbb015f77..2c1607c858a1 100644 --- a/drivers/net/dsa/mv88e6xxx/global1.h +++ b/drivers/net/dsa/mv88e6xxx/global1.h @@ -46,6 +46,7 @@ /* Offset 0x02: VTU FID Register */ #define MV88E6352_G1_VTU_FID 0x02 +#define MV88E6352_G1_VTU_FID_VID_POLICY 0x1000 #define MV88E6352_G1_VTU_FID_MASK 0x0fff /* Offset 0x03: VTU SID Register */ diff --git a/drivers/net/dsa/mv88e6xxx/global1_vtu.c b/drivers/net/dsa/mv88e6xxx/global1_vtu.c index ae12c981923e..b1bd9274a562 100644 --- a/drivers/net/dsa/mv88e6xxx/global1_vtu.c +++ b/drivers/net/dsa/mv88e6xxx/global1_vtu.c @@ -27,7 +27,7 @@ static int mv88e6xxx_g1_vtu_fid_read(struct mv88e6xxx_chip *chip, return err; entry->fid = val & MV88E6352_G1_VTU_FID_MASK; - + entry->policy = !!(val & MV88E6352_G1_VTU_FID_VID_POLICY); return 0; } @@ -36,6 +36,9 @@ static int mv88e6xxx_g1_vtu_fid_write(struct mv88e6xxx_chip *chip, { u16 val = entry->fid & MV88E6352_G1_VTU_FID_MASK; + if (entry->policy) + val |= MV88E6352_G1_VTU_FID_VID_POLICY; + return mv88e6xxx_g1_write(chip, MV88E6352_G1_VTU_FID, val); } -- 2.25.1