diff options
Diffstat (limited to 'target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c')
| -rw-r--r-- | target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c | 1120 |
1 files changed, 1120 insertions, 0 deletions
diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c new file mode 100644 index 0000000000..d1e56a76e9 --- /dev/null +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c @@ -0,0 +1,1120 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2013 John Crispin <blogic@openwrt.org> + * Copyright (C) 2016 Vitaly Chekryzhev <13hakta@gmail.com> + */ + +#include <linux/if.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/if_ether.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/netlink.h> +#include <linux/bitops.h> +#include <net/genetlink.h> +#include <linux/switch.h> +#include <linux/delay.h> +#include <linux/phy.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/lockdep.h> +#include <linux/workqueue.h> +#include <linux/of_device.h> + +#include "mt7530.h" + +#define MT7530_CPU_PORT 6 +#define MT7530_NUM_PORTS 8 +#ifdef CONFIG_SOC_MT7621 +#define MT7530_NUM_VLANS 4095 +#else +#define MT7530_NUM_VLANS 16 +#endif +#define MT7530_MAX_VID 4095 +#define MT7530_MIN_VID 0 + +#define MT7530_PORT_MIB_TXB_ID 2 /* TxGOC */ +#define MT7530_PORT_MIB_RXB_ID 6 /* RxGOC */ + +#define MT7621_PORT_MIB_TXB_ID 18 /* TxByte */ +#define MT7621_PORT_MIB_RXB_ID 37 /* RxByte */ + +/* registers */ +#define REG_ESW_WT_MAC_MFC 0x10 + +#define REG_ESW_WT_MAC_MFC_MIRROR_ENABLE BIT(3) +#define REG_ESW_WT_MAC_MFC_MIRROR_DEST_MASK 0x07 + +#define REG_ESW_VLAN_VTCR 0x90 +#define REG_ESW_VLAN_VAWD1 0x94 +#define REG_ESW_VLAN_VAWD2 0x98 +#define REG_ESW_VLAN_VTIM(x) (0x100 + 4 * ((x) / 2)) + +#define REG_ESW_VLAN_VAWD1_IVL_MAC BIT(30) +#define REG_ESW_VLAN_VAWD1_VTAG_EN BIT(28) +#define REG_ESW_VLAN_VAWD1_VALID BIT(0) + +/* vlan egress mode */ +enum { + ETAG_CTRL_UNTAG = 0, + ETAG_CTRL_TAG = 2, + ETAG_CTRL_SWAP = 1, + ETAG_CTRL_STACK = 3, +}; + +#define REG_ESW_PORT_PCR(x) (0x2004 | ((x) << 8)) +#define REG_ESW_PORT_PVC(x) (0x2010 | ((x) << 8)) +#define REG_ESW_PORT_PPBV1(x) (0x2014 | ((x) << 8)) + +#define REG_ESW_PORT_PCR_MIRROR_SRC_RX_BIT BIT(8) +#define REG_ESW_PORT_PCR_MIRROR_SRC_TX_BIT BIT(9) +#define REG_ESW_PORT_PCR_MIRROR_SRC_RX_MASK 0x0100 +#define REG_ESW_PORT_PCR_MIRROR_SRC_TX_MASK 0x0200 + +#define REG_HWTRAP 0x7804 + +#define MIB_DESC(_s , _o, _n) \ + { \ + .size = (_s), \ + .offset = (_o), \ + .name = (_n), \ + } + +struct mt7xxx_mib_desc { + unsigned int size; + unsigned int offset; + const char *name; +}; + +static const struct mt7xxx_mib_desc mt7620_mibs[] = { + MIB_DESC(1, MT7620_MIB_STATS_PPE_AC_BCNT0, "PPE_AC_BCNT0"), + MIB_DESC(1, MT7620_MIB_STATS_PPE_AC_PCNT0, "PPE_AC_PCNT0"), + MIB_DESC(1, MT7620_MIB_STATS_PPE_AC_BCNT63, "PPE_AC_BCNT63"), + MIB_DESC(1, MT7620_MIB_STATS_PPE_AC_PCNT63, "PPE_AC_PCNT63"), + MIB_DESC(1, MT7620_MIB_STATS_PPE_MTR_CNT0, "PPE_MTR_CNT0"), + MIB_DESC(1, MT7620_MIB_STATS_PPE_MTR_CNT63, "PPE_MTR_CNT63"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_TX_GBCNT, "GDM1_TX_GBCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_TX_GPCNT, "GDM1_TX_GPCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_TX_SKIPCNT, "GDM1_TX_SKIPCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_TX_COLCNT, "GDM1_TX_COLCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_GBCNT1, "GDM1_RX_GBCNT1"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_GPCNT1, "GDM1_RX_GPCNT1"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_OERCNT, "GDM1_RX_OERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_FERCNT, "GDM1_RX_FERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_SERCNT, "GDM1_RX_SERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_LERCNT, "GDM1_RX_LERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_CERCNT, "GDM1_RX_CERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM1_RX_FCCNT, "GDM1_RX_FCCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_TX_GBCNT, "GDM2_TX_GBCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_TX_GPCNT, "GDM2_TX_GPCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_TX_SKIPCNT, "GDM2_TX_SKIPCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_TX_COLCNT, "GDM2_TX_COLCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_GBCNT, "GDM2_RX_GBCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_GPCNT, "GDM2_RX_GPCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_OERCNT, "GDM2_RX_OERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_FERCNT, "GDM2_RX_FERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_SERCNT, "GDM2_RX_SERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_LERCNT, "GDM2_RX_LERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_CERCNT, "GDM2_RX_CERCNT"), + MIB_DESC(1, MT7620_MIB_STATS_GDM2_RX_FCCNT, "GDM2_RX_FCCNT") +}; + +static const struct mt7xxx_mib_desc mt7620_port_mibs[] = { + MIB_DESC(1, MT7620_MIB_STATS_PORT_TGPCN, "TxGPC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_TBOCN, "TxBOC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_TGOCN, "TxGOC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_TEPCN, "TxEPC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_RGPCN, "RxGPC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_RBOCN, "RxBOC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_RGOCN, "RxGOC"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_REPC1N, "RxEPC1"), + MIB_DESC(1, MT7620_MIB_STATS_PORT_REPC2N, "RxEPC2") +}; + +static const struct mt7xxx_mib_desc mt7621_mibs[] = { + MIB_DESC(1, MT7621_STATS_TDPC, "TxDrop"), + MIB_DESC(1, MT7621_STATS_TCRC, "TxCRC"), + MIB_DESC(1, MT7621_STATS_TUPC, "TxUni"), + MIB_DESC(1, MT7621_STATS_TMPC, "TxMulti"), + MIB_DESC(1, MT7621_STATS_TBPC, "TxBroad"), + MIB_DESC(1, MT7621_STATS_TCEC, "TxCollision"), + MIB_DESC(1, MT7621_STATS_TSCEC, "TxSingleCol"), + MIB_DESC(1, MT7621_STATS_TMCEC, "TxMultiCol"), + MIB_DESC(1, MT7621_STATS_TDEC, "TxDefer"), + MIB_DESC(1, MT7621_STATS_TLCEC, "TxLateCol"), + MIB_DESC(1, MT7621_STATS_TXCEC, "TxExcCol"), + MIB_DESC(1, MT7621_STATS_TPPC, "TxPause"), + MIB_DESC(1, MT7621_STATS_TL64PC, "Tx64Byte"), + MIB_DESC(1, MT7621_STATS_TL65PC, "Tx65Byte"), + MIB_DESC(1, MT7621_STATS_TL128PC, "Tx128Byte"), + MIB_DESC(1, MT7621_STATS_TL256PC, "Tx256Byte"), + MIB_DESC(1, MT7621_STATS_TL512PC, "Tx512Byte"), + MIB_DESC(1, MT7621_STATS_TL1024PC, "Tx1024Byte"), + MIB_DESC(2, MT7621_STATS_TOC, "TxByte"), + MIB_DESC(1, MT7621_STATS_RDPC, "RxDrop"), + MIB_DESC(1, MT7621_STATS_RFPC, "RxFiltered"), + MIB_DESC(1, MT7621_STATS_RUPC, "RxUni"), + MIB_DESC(1, MT7621_STATS_RMPC, "RxMulti"), + MIB_DESC(1, MT7621_STATS_RBPC, "RxBroad"), + MIB_DESC(1, MT7621_STATS_RAEPC, "RxAlignErr"), + MIB_DESC(1, MT7621_STATS_RCEPC, "RxCRC"), + MIB_DESC(1, MT7621_STATS_RUSPC, "RxUnderSize"), + MIB_DESC(1, MT7621_STATS_RFEPC, "RxFragment"), + MIB_DESC(1, MT7621_STATS_ROSPC, "RxOverSize"), + MIB_DESC(1, MT7621_STATS_RJEPC, "RxJabber"), + MIB_DESC(1, MT7621_STATS_RPPC, "RxPause"), + MIB_DESC(1, MT7621_STATS_RL64PC, "Rx64Byte"), + MIB_DESC(1, MT7621_STATS_RL65PC, "Rx65Byte"), + MIB_DESC(1, MT7621_STATS_RL128PC, "Rx128Byte"), + MIB_DESC(1, MT7621_STATS_RL256PC, "Rx256Byte"), + MIB_DESC(1, MT7621_STATS_RL512PC, "Rx512Byte"), + MIB_DESC(1, MT7621_STATS_RL1024PC, "Rx1024Byte"), + MIB_DESC(2, MT7621_STATS_ROC, "RxByte"), + MIB_DESC(1, MT7621_STATS_RDPC_CTRL, "RxCtrlDrop"), + MIB_DESC(1, MT7621_STATS_RDPC_ING, "RxIngDrop"), + MIB_DESC(1, MT7621_STATS_RDPC_ARL, "RxARLDrop") +}; + +enum { + /* Global attributes. */ + MT7530_ATTR_ENABLE_VLAN, +}; + +struct mt7530_port_entry { + u16 pvid; + bool mirror_rx; + bool mirror_tx; +}; + +struct mt7530_vlan_entry { + u16 vid; + u8 member; + u8 etags; +}; + +struct mt7530_priv { + void __iomem *base; + struct mii_bus *bus; + struct switch_dev swdev; + + u8 mirror_dest_port; + bool global_vlan_enable; + struct mt7530_vlan_entry vlan_entries[MT7530_NUM_VLANS]; + struct mt7530_port_entry port_entries[MT7530_NUM_PORTS]; +}; + +struct mt7530_mapping { + char *name; + u16 pvids[MT7530_NUM_PORTS]; + u8 members[MT7530_NUM_VLANS]; + u8 etags[MT7530_NUM_VLANS]; + u16 vids[MT7530_NUM_VLANS]; +} mt7530_defaults[] = { + { + .name = "llllw", + .pvids = { 1, 1, 1, 1, 2, 1, 1 }, + .members = { 0, 0x6f, 0x50 }, + .etags = { 0, 0x40, 0x40 }, + .vids = { 0, 1, 2 }, + }, { + .name = "wllll", + .pvids = { 2, 1, 1, 1, 1, 1, 1 }, + .members = { 0, 0x7e, 0x41 }, + .etags = { 0, 0x40, 0x40 }, + .vids = { 0, 1, 2 }, + }, { + .name = "lwlll", + .pvids = { 1, 2, 1, 1, 1, 1, 1 }, + .members = { 0, 0x7d, 0x42 }, + .etags = { 0, 0x40, 0x40 }, + .vids = { 0, 1, 2 }, + }, +}; + +struct mt7530_mapping* +mt7530_find_mapping(struct device_node *np) +{ + const char *map; + int i; + + if (of_property_read_string(np, "mediatek,portmap", &map)) + return NULL; + + for (i = 0; i < ARRAY_SIZE(mt7530_defaults); i++) + if (!strcmp(map, mt7530_defaults[i].name)) + return &mt7530_defaults[i]; + + return NULL; +} + +static void +mt7530_apply_mapping(struct mt7530_priv *mt7530, struct mt7530_mapping *map) +{ + int i = 0; + + for (i = 0; i < MT7530_NUM_PORTS; i++) + mt7530->port_entries[i].pvid = map->pvids[i]; + + for (i = 0; i < MT7530_NUM_VLANS; i++) { + mt7530->vlan_entries[i].member = map->members[i]; + mt7530->vlan_entries[i].etags = map->etags[i]; + mt7530->vlan_entries[i].vid = map->vids[i]; + } +} + +static int +mt7530_reset_switch(struct switch_dev *dev) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + int i; + + memset(priv->port_entries, 0, sizeof(priv->port_entries)); + memset(priv->vlan_entries, 0, sizeof(priv->vlan_entries)); + + /* set default vid of each vlan to the same number of vlan, so the vid + * won't need be set explicitly. + */ + for (i = 0; i < MT7530_NUM_VLANS; i++) { + priv->vlan_entries[i].vid = i; + } + + return 0; +} + +static int +mt7530_get_vlan_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + val->value.i = priv->global_vlan_enable; + + return 0; +} + +static int +mt7530_set_vlan_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + priv->global_vlan_enable = val->value.i != 0; + + return 0; +} + +static u32 +mt7530_r32(struct mt7530_priv *priv, u32 reg) +{ + u32 val; + if (priv->bus) { + u16 high, low; + + mdiobus_write(priv->bus, 0x1f, 0x1f, (reg >> 6) & 0x3ff); + low = mdiobus_read(priv->bus, 0x1f, (reg >> 2) & 0xf); + high = mdiobus_read(priv->bus, 0x1f, 0x10); + + return (high << 16) | (low & 0xffff); + } + + val = ioread32(priv->base + reg); + pr_debug("MT7530 MDIO Read [%04x]=%08x\n", reg, val); + + return val; +} + +static void +mt7530_w32(struct mt7530_priv *priv, u32 reg, u32 val) +{ + if (priv->bus) { + mdiobus_write(priv->bus, 0x1f, 0x1f, (reg >> 6) & 0x3ff); + mdiobus_write(priv->bus, 0x1f, (reg >> 2) & 0xf, val & 0xffff); + mdiobus_write(priv->bus, 0x1f, 0x10, val >> 16); + return; + } + + pr_debug("MT7530 MDIO Write[%04x]=%08x\n", reg, val); + iowrite32(val, priv->base + reg); +} + +static void +mt7530_vtcr(struct mt7530_priv *priv, u32 cmd, u32 val) +{ + int i; + + mt7530_w32(priv, REG_ESW_VLAN_VTCR, BIT(31) | (cmd << 12) | val); + + for (i = 0; i < 20; i++) { + u32 val = mt7530_r32(priv, REG_ESW_VLAN_VTCR); + + if ((val & BIT(31)) == 0) + break; + + udelay(1000); + } + if (i == 20) + printk("mt7530: vtcr timeout\n"); +} + +static int +mt7530_get_port_pvid(struct switch_dev *dev, int port, int *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + if (port >= MT7530_NUM_PORTS) + return -EINVAL; + + *val = mt7530_r32(priv, REG_ESW_PORT_PPBV1(port)); + *val &= 0xfff; + + return 0; +} + +static int +mt7530_set_port_pvid(struct switch_dev *dev, int port, int pvid) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + if (port >= MT7530_NUM_PORTS) + return -EINVAL; + + if (pvid < MT7530_MIN_VID || pvid > MT7530_MAX_VID) + return -EINVAL; + + priv->port_entries[port].pvid = pvid; + + return 0; +} + +static int +mt7530_get_vlan_ports(struct switch_dev *dev, struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + u32 member; + u32 etags; + int i; + + val->len = 0; + + if (val->port_vlan < 0 || val->port_vlan >= MT7530_NUM_VLANS) + return -EINVAL; + + mt7530_vtcr(priv, 0, val->port_vlan); + + member = mt7530_r32(priv, REG_ESW_VLAN_VAWD1); + member >>= 16; + member &= 0xff; + + etags = mt7530_r32(priv, REG_ESW_VLAN_VAWD2); + + for (i = 0; i < MT7530_NUM_PORTS; i++) { + struct switch_port *p; + int etag; + + if (!(member & BIT(i))) + continue; + + p = &val->value.ports[val->len++]; + p->id = i; + + etag = (etags >> (i * 2)) & 0x3; + + if (etag == ETAG_CTRL_TAG) + p->flags |= BIT(SWITCH_PORT_FLAG_TAGGED); + else if (etag != ETAG_CTRL_UNTAG) + printk("vlan %d port %d egress tag control neither untag nor tag: %d.\n", + val->port_vlan, i, etag); + } + + return 0; +} + +static int +mt7530_set_vlan_ports(struct switch_dev *dev, struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + u8 member = 0; + u8 etags = 0; + int i; + + if (val->port_vlan < 0 || val->port_vlan >= MT7530_NUM_VLANS || + val->len > MT7530_NUM_PORTS) + return -EINVAL; + + for (i = 0; i < val->len; i++) { + struct switch_port *p = &val->value.ports[i]; + + if (p->id >= MT7530_NUM_PORTS) + return -EINVAL; + + member |= BIT(p->id); + + if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) + etags |= BIT(p->id); + } + priv->vlan_entries[val->port_vlan].member = member; + priv->vlan_entries[val->port_vlan].etags = etags; + + return 0; +} + +static int +mt7530_set_vid(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + int vlan; + u16 vid; + + vlan = val->port_vlan; + vid = (u16)val->value.i; + + if (vlan < 0 || vlan >= MT7530_NUM_VLANS) + return -EINVAL; + + if (vid < MT7530_MIN_VID || vid > MT7530_MAX_VID) + return -EINVAL; + + priv->vlan_entries[vlan].vid = vid; + return 0; +} + +static int +mt7621_get_vid(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + val->value.i = val->port_vlan; + return 0; +} + +static int +mt7530_get_vid(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + u32 vid; + int vlan; + + vlan = val->port_vlan; + + vid = mt7530_r32(priv, REG_ESW_VLAN_VTIM(vlan)); + if (vlan & 1) + vid = vid >> 12; + vid &= 0xfff; + + val->value.i = vid; + return 0; +} + +static int +mt7530_get_mirror_monitor_port(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + val->value.i = priv->mirror_dest_port; + + return 0; +} + +static int +mt7530_set_mirror_monitor_port(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + priv->mirror_dest_port = val->value.i; + + return 0; +} + +static int +mt7530_get_port_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + val->value.i = priv->port_entries[val->port_vlan].mirror_rx; + + return 0; +} + +static int +mt7530_set_port_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + priv->port_entries[val->port_vlan].mirror_rx = val->value.i; + + return 0; +} + +static int +mt7530_get_port_mirror_tx(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + val->value.i = priv->port_entries[val->port_vlan].mirror_tx; + + return 0; +} + +static int +mt7530_set_port_mirror_tx(struct switch_dev *dev, const struct switch_attr *attr, + struct switch_val *val) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + priv->port_entries[val->port_vlan].mirror_tx = val->value.i; + + return 0; +} + +static void +mt7530_write_vlan_entry(struct mt7530_priv *priv, int vlan, u16 vid, + u8 ports, u8 etags) +{ + int port; + u32 val; + +#ifndef CONFIG_SOC_MT7621 + /* vid of vlan */ + val = mt7530_r32(priv, REG_ESW_VLAN_VTIM(vlan)); + if (vlan % 2 == 0) { + val &= 0xfff000; + val |= vid; + } else { + val &= 0xfff; + val |= (vid << 12); + } + mt7530_w32(priv, REG_ESW_VLAN_VTIM(vlan), val); +#endif + + /* vlan port membership */ + if (ports) + mt7530_w32(priv, REG_ESW_VLAN_VAWD1, REG_ESW_VLAN_VAWD1_IVL_MAC | + REG_ESW_VLAN_VAWD1_VTAG_EN | (ports << 16) | + REG_ESW_VLAN_VAWD1_VALID); + else + mt7530_w32(priv, REG_ESW_VLAN_VAWD1, 0); + + /* egress mode */ + val = 0; + for (port = 0; port < MT7530_NUM_PORTS; port++) { + if (etags & BIT(port)) + val |= ETAG_CTRL_TAG << (port * 2); + else + val |= ETAG_CTRL_UNTAG << (port * 2); + } + mt7530_w32(priv, REG_ESW_VLAN_VAWD2, val); + + /* write to vlan table */ +#ifdef CONFIG_SOC_MT7621 + mt7530_vtcr(priv, 1, vid); +#else + mt7530_vtcr(priv, 1, vlan); +#endif +} + +static int +mt7530_apply_config(struct switch_dev *dev) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + int i, j; + u8 tag_ports; + u8 untag_ports; + bool is_mirror = false; + + if (!priv->global_vlan_enable) { + for (i = 0; i < MT7530_NUM_PORTS; i++) + mt7530_w32(priv, REG_ESW_PORT_PCR(i), 0x00400000); + + mt7530_w32(priv, REG_ESW_PORT_PCR(MT7530_CPU_PORT), 0x00ff0000); + + for (i = 0; i < MT7530_NUM_PORTS; i++) + mt7530_w32(priv, REG_ESW_PORT_PVC(i), 0x810000c0); + + return 0; + } + + /* set all ports as security mode */ + for (i = 0; i < MT7530_NUM_PORTS; i++) + mt7530_w32(priv, REG_ESW_PORT_PCR(i), 0x00ff0003); + + /* check if a port is used in tag/untag vlan egress mode */ + tag_ports = 0; + untag_ports = 0; + + for (i = 0; i < MT7530_NUM_VLANS; i++) { + u8 member = priv->vlan_entries[i].member; + u8 etags = priv->vlan_entries[i].etags; + + if (!member) + continue; + + for (j = 0; j < MT7530_NUM_PORTS; j++) { + if (!(member & BIT(j))) + continue; + + if (etags & BIT(j)) + tag_ports |= 1u << j; + else + untag_ports |= 1u << j; + } + } + + /* set all untag-only ports as transparent and the rest as user port */ + for (i = 0; i < MT7530_NUM_PORTS; i++) { + u32 pvc_mode = 0x81000000; + + if (untag_ports & BIT(i) && !(tag_ports & BIT(i))) + pvc_mode = 0x810000c0; + + mt7530_w32(priv, REG_ESW_PORT_PVC(i), pvc_mode); + } + + /* first clear the swtich vlan table */ + for (i = 0; i < MT7530_NUM_VLANS; i++) + mt7530_write_vlan_entry(priv, i, i, 0, 0); + + /* now program only vlans with members to avoid + clobbering remapped entries in later iterations */ + for (i = 0; i < MT7530_NUM_VLANS; i++) { + u16 vid = priv->vlan_entries[i].vid; + u8 member = priv->vlan_entries[i].member; + u8 etags = priv->vlan_entries[i].etags; + + if (member) + mt7530_write_vlan_entry(priv, i, vid, member, etags); + } + + /* Port Default PVID */ + for (i = 0; i < MT7530_NUM_PORTS; i++) { + int vlan = priv->port_entries[i].pvid; + u16 pvid = 0; + u32 val; + + if (vlan < MT7530_NUM_VLANS && priv->vlan_entries[vlan].member) + pvid = priv->vlan_entries[vlan].vid; + + val = mt7530_r32(priv, REG_ESW_PORT_PPBV1(i)); + val &= ~0xfff; + val |= pvid; + mt7530_w32(priv, REG_ESW_PORT_PPBV1(i), val); + } + + /* set mirroring source port */ + for (i = 0; i < MT7530_NUM_PORTS; i++) { + u32 val = mt7530_r32(priv, REG_ESW_PORT_PCR(i)); + if (priv->port_entries[i].mirror_rx) { + val |= REG_ESW_PORT_PCR_MIRROR_SRC_RX_BIT; + is_mirror = true; + } + + if (priv->port_entries[i].mirror_tx) { + val |= REG_ESW_PORT_PCR_MIRROR_SRC_TX_BIT; + is_mirror = true; + } + + mt7530_w32(priv, REG_ESW_PORT_PCR(i), val); + } + + /* set mirroring monitor port */ + if (is_mirror) { + u32 val = mt7530_r32(priv, REG_ESW_WT_MAC_MFC); + val |= REG_ESW_WT_MAC_MFC_MIRROR_ENABLE; + val &= ~REG_ESW_WT_MAC_MFC_MIRROR_DEST_MASK; + val |= priv->mirror_dest_port; + mt7530_w32(priv, REG_ESW_WT_MAC_MFC, val); + } + + return 0; +} + +static int +mt7530_get_port_link(struct switch_dev *dev, int port, + struct switch_port_link *link) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + u32 speed, pmsr; + + if (port < 0 || port >= MT7530_NUM_PORTS) + return -EINVAL; + + pmsr = mt7530_r32(priv, 0x3008 + (0x100 * port)); + + link->link = pmsr & 1; + link->duplex = (pmsr >> 1) & 1; + speed = (pmsr >> 2) & 3; + + switch (speed) { + case 0: + link->speed = SWITCH_PORT_SPEED_10; + break; + case 1: + link->speed = SWITCH_PORT_SPEED_100; + break; + case 2: + case 3: /* forced gige speed can be 2 or 3 */ + link->speed = SWITCH_PORT_SPEED_1000; + break; + default: + link->speed = SWITCH_PORT_SPEED_UNKNOWN; + break; + } + + return 0; +} + +static u64 get_mib_counter(struct mt7530_priv *priv, int i, int port) +{ + unsigned int port_base; + u64 lo; + + port_base = MT7621_MIB_COUNTER_BASE + + MT7621_MIB_COUNTER_PORT_OFFSET * port; + + lo = mt7530_r32(priv, port_base + mt7621_mibs[i].offset); + if (mt7621_mibs[i].size == 2) { + u64 hi; + + hi = mt7530_r32(priv, port_base + mt7621_mibs[i].offset + 4); + lo |= hi << 32; + } + + return lo; +} + +static int mt7621_sw_get_port_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + static char buf[4096]; + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + int i, len = 0; + + if (val->port_vlan >= MT7530_NUM_PORTS) + return -EINVAL; + + len += snprintf(buf + len, sizeof(buf) - len, + "Port %d MIB counters\n", val->port_vlan); + + for (i = 0; i < ARRAY_SIZE(mt7621_mibs); ++i) { + u64 counter; + len += snprintf(buf + len, sizeof(buf) - len, + "%-11s: ", mt7621_mibs[i].name); + counter = get_mib_counter(priv, i, val->port_vlan); + len += snprintf(buf + len, sizeof(buf) - len, "%llu\n", + counter); + } + + val->value.s = buf; + val->len = len; + return 0; +} + +static u64 get_mib_counter_7620(struct mt7530_priv *priv, int i) +{ + return mt7530_r32(priv, MT7620_MIB_COUNTER_BASE + mt7620_mibs[i].offset); +} + +static u64 get_mib_counter_port_7620(struct mt7530_priv *priv, int i, int port) +{ + return mt7530_r32(priv, + MT7620_MIB_COUNTER_BASE_PORT + + (MT7620_MIB_COUNTER_PORT_OFFSET * port) + + mt7620_port_mibs[i].offset); +} + +static int mt7530_sw_get_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + static char buf[4096]; + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + int i, len = 0; + + len += snprintf(buf + len, sizeof(buf) - len, "Switch MIB counters\n"); + + for (i = 0; i < ARRAY_SIZE(mt7620_mibs); ++i) { + u64 counter; + len += snprintf(buf + len, sizeof(buf) - len, + "%-11s: ", mt7620_mibs[i].name); + counter = get_mib_counter_7620(priv, i); + len += snprintf(buf + len, sizeof(buf) - len, "%llu\n", + counter); + } + + val->value.s = buf; + val->len = len; + return 0; +} + +static int mt7530_sw_get_port_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + static char buf[4096]; + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + int i, len = 0; + + if (val->port_vlan >= MT7530_NUM_PORTS) + return -EINVAL; + + len += snprintf(buf + len, sizeof(buf) - len, + "Port %d MIB counters\n", val->port_vlan); + + for (i = 0; i < ARRAY_SIZE(mt7620_port_mibs); ++i) { + u64 counter; + len += snprintf(buf + len, sizeof(buf) - len, + "%-11s: ", mt7620_port_mibs[i].name); + counter = get_mib_counter_port_7620(priv, i, val->port_vlan); + len += snprintf(buf + len, sizeof(buf) - len, "%llu\n", + counter); + } + + val->value.s = buf; + val->len = len; + return 0; +} + +static int mt7530_get_port_stats(struct switch_dev *dev, int port, + struct switch_port_stats *stats) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + if (port < 0 || port >= MT7530_NUM_PORTS) + return -EINVAL; + + stats->tx_bytes = get_mib_counter_port_7620(priv, MT7530_PORT_MIB_TXB_ID, port); + stats->rx_bytes = get_mib_counter_port_7620(priv, MT7530_PORT_MIB_RXB_ID, port); + + return 0; +} + +static int mt7621_get_port_stats(struct switch_dev *dev, int port, + struct switch_port_stats *stats) +{ + struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev); + + if (port < 0 || port >= MT7530_NUM_PORTS) + return -EINVAL; + + stats->tx_bytes = get_mib_counter(priv, MT7621_PORT_MIB_TXB_ID, port); + stats->rx_bytes = get_mib_counter(priv, MT7621_PORT_MIB_RXB_ID, port); + + return 0; +} + +static const struct switch_attr mt7530_global[] = { + { + .type = SWITCH_TYPE_INT, + .name = "enable_vlan", + .description = "VLAN mode (1:enabled)", + .max = 1, + .id = MT7530_ATTR_ENABLE_VLAN, + .get = mt7530_get_vlan_enable, + .set = mt7530_set_vlan_enable, + }, { + .type = SWITCH_TYPE_STRING, + .name = "mib", + .description = "Get MIB counters for switch", + .get = mt7530_sw_get_mib, + .set = NULL, + }, { + .type = SWITCH_TYPE_INT, + .name = "mirror_monitor_port", + .description = "Mirror monitor port", + .set = mt7530_set_mirror_monitor_port, + .get = mt7530_get_mirror_monitor_port, + .max = MT7530_NUM_PORTS - 1 + }, +}; + +static const struct switch_attr mt7621_port[] = { + { + .type = SWITCH_TYPE_STRING, + .name = "mib", + .description = "Get MIB counters for port", + .get = mt7621_sw_get_port_mib, + .set = NULL, + }, { + .type = SWITCH_TYPE_INT, + .name = "enable_mirror_rx", + .description = "Enable mirroring of RX packets", + .set = mt7530_set_port_mirror_rx, + .get = mt7530_get_port_mirror_rx, + .max = 1, + }, { + .type = SWITCH_TYPE_INT, + .name = "enable_mirror_tx", + .description = "Enable mirroring of TX packets", + .set = mt7530_set_port_mirror_tx, + .get = mt7530_get_port_mirror_tx, + .max = 1, + }, +}; + +static const struct switch_attr mt7621_vlan[] = { + { + .type = SWITCH_TYPE_INT, + .name = "vid", + .description = "VLAN ID (0-4094)", + .set = mt7530_set_vid, + .get = mt7621_get_vid, + .max = 4094, + }, +}; + +static const struct switch_attr mt7530_port[] = { + { + .type = SWITCH_TYPE_STRING, + .name = "mib", + .description = "Get MIB counters for port", + .get = mt7530_sw_get_port_mib, + .set = NULL, + }, { + .type = SWITCH_TYPE_INT, + .name = "enable_mirror_rx", + .description = "Enable mirroring of RX packets", + .set = mt7530_set_port_mirror_rx, + .get = mt7530_get_port_mirror_rx, + .max = 1, + }, { + .type = SWITCH_TYPE_INT, + .name = "enable_mirror_tx", + .description = "Enable mirroring of TX packets", + .set = mt7530_set_port_mirror_tx, + .get = mt7530_get_port_mirror_tx, + .max = 1, + }, +}; + +static const struct switch_attr mt7530_vlan[] = { + { + .type = SWITCH_TYPE_INT, + .name = "vid", + .description = "VLAN ID (0-4094)", + .set = mt7530_set_vid, + .get = mt7530_get_vid, + .max = 4094, + }, +}; + +static const struct switch_dev_ops mt7621_ops = { + .attr_global = { + .attr = mt7530_global, + .n_attr = ARRAY_SIZE(mt7530_global), + }, + .attr_port = { + .attr = mt7621_port, + .n_attr = ARRAY_SIZE(mt7621_port), + }, + .attr_vlan = { + .attr = mt7621_vlan, + .n_attr = ARRAY_SIZE(mt7621_vlan), + }, + .get_vlan_ports = mt7530_get_vlan_ports, + .set_vlan_ports = mt7530_set_vlan_ports, + .get_port_pvid = mt7530_get_port_pvid, + .set_port_pvid = mt7530_set_port_pvid, + .get_port_link = mt7530_get_port_link, + .get_port_stats = mt7621_get_port_stats, + .apply_config = mt7530_apply_config, + .reset_switch = mt7530_reset_switch, +}; + +static const struct switch_dev_ops mt7530_ops = { + .attr_global = { + .attr = mt7530_global, + .n_attr = ARRAY_SIZE(mt7530_global), + }, + .attr_port = { + .attr = mt7530_port, + .n_attr = ARRAY_SIZE(mt7530_port), + }, + .attr_vlan = { + .attr = mt7530_vlan, + .n_attr = ARRAY_SIZE(mt7530_vlan), + }, + .get_vlan_ports = mt7530_get_vlan_ports, + .set_vlan_ports = mt7530_set_vlan_ports, + .get_port_pvid = mt7530_get_port_pvid, + .set_port_pvid = mt7530_set_port_pvid, + .get_port_link = mt7530_get_port_link, + .get_port_stats = mt7530_get_port_stats, + .apply_config = mt7530_apply_config, + .reset_switch = mt7530_reset_switch, +}; + +int +mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vlan) +{ + struct switch_dev *swdev; + struct mt7530_priv *mt7530; + struct mt7530_mapping *map; + int ret; + + mt7530 = devm_kzalloc(dev, sizeof(struct mt7530_priv), GFP_KERNEL); + if (!mt7530) + return -ENOMEM; + + mt7530->base = base; + mt7530->bus = bus; + mt7530->global_vlan_enable = vlan; + + swdev = &mt7530->swdev; + if (bus) { + swdev->alias = "mt7530"; + swdev->name = "mt7530"; + } else if (IS_ENABLED(CONFIG_SOC_MT7621)) { + swdev->alias = "mt7621"; + swdev->name = "mt7621"; + } else { + swdev->alias = "mt7620"; + swdev->name = "mt7620"; + } + swdev->cpu_port = MT7530_CPU_PORT; + swdev->ports = MT7530_NUM_PORTS; + swdev->vlans = MT7530_NUM_VLANS; + if (IS_ENABLED(CONFIG_SOC_MT7621)) + swdev->ops = &mt7621_ops; + else + swdev->ops = &mt7530_ops; + + ret = register_switch(swdev, NULL); + if (ret) { + dev_err(dev, "failed to register mt7530\n"); + return ret; + } + + + map = mt7530_find_mapping(dev->of_node); + if (map) + mt7530_apply_mapping(mt7530, map); + mt7530_apply_config(swdev); + + /* magic vodoo */ + if (!IS_ENABLED(CONFIG_SOC_MT7621) && bus && mt7530_r32(mt7530, REG_HWTRAP) != 0x1117edf) { + dev_info(dev, "fixing up MHWTRAP register - bootloader probably played with it\n"); + mt7530_w32(mt7530, REG_HWTRAP, 0x1117edf); + } + dev_info(dev, "loaded %s driver\n", swdev->name); + + return 0; +} |