From 9cca6c5ad90330115ad3e550abf515c029e931fa Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Fri, 21 Aug 2015 08:09:52 +0000 Subject: [PATCH] Previously, all VLANs (port-based or 802.1q) were sharing a single database in the ATU. This created problems in the case of a system where two ports/devices share a MAC address (e.g. Linksys WRT1900AC eth0/eth1). This also clears any bootloader-set FDB defaults. This had caused issues creating port-based VLANs when mappings overlapped previous VLANs. Packets destined to a port not in the default port group flooded all ports. Tested on a 88E6171 (Linksys EA4500) and 88E6172 ('1900AC) Signed-off-by: Claudio Leite Signed-off-by: Imre Kaloz SVN-Revision: 46699 --- .../generic/files/drivers/net/phy/mvsw61xx.c | 17 +++++++++++++---- .../generic/files/drivers/net/phy/mvsw61xx.h | 6 ++++++ 2 files changed, 19 insertions(+), 4 deletions(-) diff --git a/target/linux/generic/files/drivers/net/phy/mvsw61xx.c b/target/linux/generic/files/drivers/net/phy/mvsw61xx.c index 116f6cf5d6..9417fd4133 100644 --- a/target/linux/generic/files/drivers/net/phy/mvsw61xx.c +++ b/target/linux/generic/files/drivers/net/phy/mvsw61xx.c @@ -493,7 +493,7 @@ static int mvsw61xx_vtu_program(struct switch_dev *dev) sw16(dev, MV_GLOBALREG(VTU_VID), MV_VTU_VID_VALID | state->vlans[i].vid); sw16(dev, MV_GLOBALREG(VTU_SID), i); - sw16(dev, MV_GLOBALREG(VTU_FID), 0); + sw16(dev, MV_GLOBALREG(VTU_FID), i); sw16(dev, MV_GLOBALREG(VTU_DATA1), v1); sw16(dev, MV_GLOBALREG(VTU_DATA2), v2); sw16(dev, MV_GLOBALREG(VTU_DATA3), 0); @@ -521,8 +521,10 @@ static void mvsw61xx_vlan_port_config(struct switch_dev *dev, int vno) if(mode != MV_VTUCTL_EGRESS_TAGGED) state->ports[i].pvid = state->vlans[vno].vid; - if (state->vlans[vno].port_based) + if (state->vlans[vno].port_based) { state->ports[i].mask |= state->vlans[vno].mask; + state->ports[i].fdb = vno; + } else state->ports[i].qmode = MV_8021Q_MODE_SECURE; } @@ -579,8 +581,14 @@ static int mvsw61xx_update_state(struct switch_dev *dev) state->ports[i].mask &= ~(1 << i); - reg = sr16(dev, MV_PORTREG(VLANMAP, i)) & ~MV_PORTS_MASK; - reg |= state->ports[i].mask; + /* set default forwarding DB number and port mask */ + reg = sr16(dev, MV_PORTREG(CONTROL1, i)) & ~MV_FDB_HI_MASK; + reg |= (state->ports[i].fdb >> MV_FDB_HI_SHIFT) & + MV_FDB_HI_MASK; + sw16(dev, MV_PORTREG(CONTROL1, i), reg); + + reg = ((state->ports[i].fdb & 0xf) << MV_FDB_LO_SHIFT) | + state->ports[i].mask; sw16(dev, MV_PORTREG(VLANMAP, i), reg); reg = sr16(dev, MV_PORTREG(CONTROL2, i)) & @@ -620,6 +628,7 @@ static int mvsw61xx_reset(struct switch_dev *dev) return -ETIMEDOUT; for (i = 0; i < dev->ports; i++) { + state->ports[i].fdb = 0; state->ports[i].qmode = 0; state->ports[i].mask = 0; state->ports[i].pvid = 0; diff --git a/target/linux/generic/files/drivers/net/phy/mvsw61xx.h b/target/linux/generic/files/drivers/net/phy/mvsw61xx.h index 61e134ce91..dbc6c92a44 100644 --- a/target/linux/generic/files/drivers/net/phy/mvsw61xx.h +++ b/target/linux/generic/files/drivers/net/phy/mvsw61xx.h @@ -224,6 +224,11 @@ enum { #define MV_PVID_MASK 0x0fff +#define MV_FDB_HI_MASK 0x00ff +#define MV_FDB_LO_MASK 0xf000 +#define MV_FDB_HI_SHIFT 4 +#define MV_FDB_LO_SHIFT 12 + struct mvsw61xx_state { struct switch_dev dev; struct mii_bus *bus; @@ -238,6 +243,7 @@ struct mvsw61xx_state { int vlan_enabled; struct port_state { + u16 fdb; u16 pvid; u16 mask; u8 qmode; -- 2.25.1