diff options
Diffstat (limited to 'target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c')
-rw-r--r-- | target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c b/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c new file mode 100644 index 0000000000..b601b90fb1 --- /dev/null +++ b/target/linux/mediatek/files-5.4/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c @@ -0,0 +1,510 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018 MediaTek Inc. + * Author: Weijie Gao <weijie.gao@mediatek.com> + */ + +#include <linux/if.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/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 "mt753x.h" +#include "mt753x_swconfig.h" +#include "mt753x_regs.h" + +#define MT753X_PORT_MIB_TXB_ID 18 /* TxByte */ +#define MT753X_PORT_MIB_RXB_ID 37 /* RxByte */ + +#define MIB_DESC(_s, _o, _n) \ + { \ + .size = (_s), \ + .offset = (_o), \ + .name = (_n), \ + } + +struct mt753x_mib_desc { + unsigned int size; + unsigned int offset; + const char *name; +}; + +static const struct mt753x_mib_desc mt753x_mibs[] = { + MIB_DESC(1, STATS_TDPC, "TxDrop"), + MIB_DESC(1, STATS_TCRC, "TxCRC"), + MIB_DESC(1, STATS_TUPC, "TxUni"), + MIB_DESC(1, STATS_TMPC, "TxMulti"), + MIB_DESC(1, STATS_TBPC, "TxBroad"), + MIB_DESC(1, STATS_TCEC, "TxCollision"), + MIB_DESC(1, STATS_TSCEC, "TxSingleCol"), + MIB_DESC(1, STATS_TMCEC, "TxMultiCol"), + MIB_DESC(1, STATS_TDEC, "TxDefer"), + MIB_DESC(1, STATS_TLCEC, "TxLateCol"), + MIB_DESC(1, STATS_TXCEC, "TxExcCol"), + MIB_DESC(1, STATS_TPPC, "TxPause"), + MIB_DESC(1, STATS_TL64PC, "Tx64Byte"), + MIB_DESC(1, STATS_TL65PC, "Tx65Byte"), + MIB_DESC(1, STATS_TL128PC, "Tx128Byte"), + MIB_DESC(1, STATS_TL256PC, "Tx256Byte"), + MIB_DESC(1, STATS_TL512PC, "Tx512Byte"), + MIB_DESC(1, STATS_TL1024PC, "Tx1024Byte"), + MIB_DESC(2, STATS_TOC, "TxByte"), + MIB_DESC(1, STATS_RDPC, "RxDrop"), + MIB_DESC(1, STATS_RFPC, "RxFiltered"), + MIB_DESC(1, STATS_RUPC, "RxUni"), + MIB_DESC(1, STATS_RMPC, "RxMulti"), + MIB_DESC(1, STATS_RBPC, "RxBroad"), + MIB_DESC(1, STATS_RAEPC, "RxAlignErr"), + MIB_DESC(1, STATS_RCEPC, "RxCRC"), + MIB_DESC(1, STATS_RUSPC, "RxUnderSize"), + MIB_DESC(1, STATS_RFEPC, "RxFragment"), + MIB_DESC(1, STATS_ROSPC, "RxOverSize"), + MIB_DESC(1, STATS_RJEPC, "RxJabber"), + MIB_DESC(1, STATS_RPPC, "RxPause"), + MIB_DESC(1, STATS_RL64PC, "Rx64Byte"), + MIB_DESC(1, STATS_RL65PC, "Rx65Byte"), + MIB_DESC(1, STATS_RL128PC, "Rx128Byte"), + MIB_DESC(1, STATS_RL256PC, "Rx256Byte"), + MIB_DESC(1, STATS_RL512PC, "Rx512Byte"), + MIB_DESC(1, STATS_RL1024PC, "Rx1024Byte"), + MIB_DESC(2, STATS_ROC, "RxByte"), + MIB_DESC(1, STATS_RDPC_CTRL, "RxCtrlDrop"), + MIB_DESC(1, STATS_RDPC_ING, "RxIngDrop"), + MIB_DESC(1, STATS_RDPC_ARL, "RxARLDrop") +}; + +enum { + /* Global attributes. */ + MT753X_ATTR_ENABLE_VLAN, +}; + +static int mt753x_get_vlan_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + val->value.i = gsw->global_vlan_enable; + + return 0; +} + +static int mt753x_set_vlan_enable(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + gsw->global_vlan_enable = val->value.i != 0; + + return 0; +} + +static int mt753x_get_port_pvid(struct switch_dev *dev, int port, int *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (port >= MT753X_NUM_PORTS) + return -EINVAL; + + *val = mt753x_reg_read(gsw, PPBV1(port)); + *val &= GRP_PORT_VID_M; + + return 0; +} + +static int mt753x_set_port_pvid(struct switch_dev *dev, int port, int pvid) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (port >= MT753X_NUM_PORTS) + return -EINVAL; + + if (pvid < MT753X_MIN_VID || pvid > MT753X_MAX_VID) + return -EINVAL; + + gsw->port_entries[port].pvid = pvid; + + return 0; +} + +static int mt753x_get_vlan_ports(struct switch_dev *dev, struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + u32 member; + u32 etags; + int i; + + val->len = 0; + + if (val->port_vlan < 0 || val->port_vlan >= MT753X_NUM_VLANS) + return -EINVAL; + + mt753x_vlan_ctrl(gsw, VTCR_READ_VLAN_ENTRY, val->port_vlan); + + member = mt753x_reg_read(gsw, VAWD1); + member &= PORT_MEM_M; + member >>= PORT_MEM_S; + + etags = mt753x_reg_read(gsw, VAWD2); + + for (i = 0; i < MT753X_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 >> PORT_ETAG_S(i)) & PORT_ETAG_M; + + if (etag == ETAG_CTRL_TAG) + p->flags |= BIT(SWITCH_PORT_FLAG_TAGGED); + else if (etag != ETAG_CTRL_UNTAG) + dev_info(gsw->dev, + "vlan egress tag control neither untag nor tag.\n"); + } + + return 0; +} + +static int mt753x_set_vlan_ports(struct switch_dev *dev, struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + u8 member = 0; + u8 etags = 0; + int i; + + if (val->port_vlan < 0 || val->port_vlan >= MT753X_NUM_VLANS || + val->len > MT753X_NUM_PORTS) + return -EINVAL; + + for (i = 0; i < val->len; i++) { + struct switch_port *p = &val->value.ports[i]; + + if (p->id >= MT753X_NUM_PORTS) + return -EINVAL; + + member |= BIT(p->id); + + if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) + etags |= BIT(p->id); + } + + gsw->vlan_entries[val->port_vlan].member = member; + gsw->vlan_entries[val->port_vlan].etags = etags; + + return 0; +} + +static int mt753x_set_vid(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int vlan; + u16 vid; + + vlan = val->port_vlan; + vid = (u16)val->value.i; + + if (vlan < 0 || vlan >= MT753X_NUM_VLANS) + return -EINVAL; + + if (vid < MT753X_MIN_VID || vid > MT753X_MAX_VID) + return -EINVAL; + + gsw->vlan_entries[vlan].vid = vid; + return 0; +} + +static int mt753x_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 mt753x_get_port_link(struct switch_dev *dev, int port, + struct switch_port_link *link) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + u32 speed, pmsr; + + if (port < 0 || port >= MT753X_NUM_PORTS) + return -EINVAL; + + pmsr = mt753x_reg_read(gsw, PMSR(port)); + + link->link = pmsr & MAC_LNK_STS; + link->duplex = pmsr & MAC_DPX_STS; + speed = (pmsr & MAC_SPD_STS_M) >> MAC_SPD_STS_S; + + switch (speed) { + case MAC_SPD_10: + link->speed = SWITCH_PORT_SPEED_10; + break; + case MAC_SPD_100: + link->speed = SWITCH_PORT_SPEED_100; + break; + case MAC_SPD_1000: + link->speed = SWITCH_PORT_SPEED_1000; + break; + case MAC_SPD_2500: + /* TODO: swconfig has no support for 2500 now */ + link->speed = SWITCH_PORT_SPEED_UNKNOWN; + break; + } + + return 0; +} + +static int mt753x_set_port_link(struct switch_dev *dev, int port, + struct switch_port_link *link) +{ +#ifndef MODULE + if (port >= MT753X_NUM_PHYS) + return -EINVAL; + + return switch_generic_set_link(dev, port, link); +#else + return -ENOTSUPP; +#endif +} + +static u64 get_mib_counter(struct gsw_mt753x *gsw, int i, int port) +{ + unsigned int offset; + u64 lo, hi, hi2; + + offset = mt753x_mibs[i].offset; + + if (mt753x_mibs[i].size == 1) + return mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset)); + + do { + hi = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset + 4)); + lo = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset)); + hi2 = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset + 4)); + } while (hi2 != hi); + + return (hi << 32) | lo; +} + +static int mt753x_get_port_mib(struct switch_dev *dev, + const struct switch_attr *attr, + struct switch_val *val) +{ + static char buf[4096]; + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int i, len = 0; + + if (val->port_vlan >= MT753X_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(mt753x_mibs); ++i) { + u64 counter; + + len += snprintf(buf + len, sizeof(buf) - len, + "%-11s: ", mt753x_mibs[i].name); + counter = get_mib_counter(gsw, 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 mt753x_get_port_stats(struct switch_dev *dev, int port, + struct switch_port_stats *stats) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (port < 0 || port >= MT753X_NUM_PORTS) + return -EINVAL; + + stats->tx_bytes = get_mib_counter(gsw, MT753X_PORT_MIB_TXB_ID, port); + stats->rx_bytes = get_mib_counter(gsw, MT753X_PORT_MIB_RXB_ID, port); + + return 0; +} + +static void mt753x_port_isolation(struct gsw_mt753x *gsw) +{ + int i; + + for (i = 0; i < MT753X_NUM_PORTS; i++) + mt753x_reg_write(gsw, PCR(i), + BIT(gsw->cpu_port) << PORT_MATRIX_S); + + mt753x_reg_write(gsw, PCR(gsw->cpu_port), PORT_MATRIX_M); + + for (i = 0; i < MT753X_NUM_PORTS; i++) + mt753x_reg_write(gsw, PVC(i), + (0x8100 << STAG_VPID_S) | + (VA_TRANSPARENT_PORT << VLAN_ATTR_S)); +} + +static int mt753x_apply_config(struct switch_dev *dev) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + if (!gsw->global_vlan_enable) { + mt753x_port_isolation(gsw); + return 0; + } + + mt753x_apply_vlan_config(gsw); + + return 0; +} + +static int mt753x_reset_switch(struct switch_dev *dev) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + int i; + + memset(gsw->port_entries, 0, sizeof(gsw->port_entries)); + memset(gsw->vlan_entries, 0, sizeof(gsw->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 < MT753X_NUM_VLANS; i++) + gsw->vlan_entries[i].vid = i; + + return 0; +} + +static int mt753x_phy_read16(struct switch_dev *dev, int addr, u8 reg, + u16 *value) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + *value = gsw->mii_read(gsw, addr, reg); + + return 0; +} + +static int mt753x_phy_write16(struct switch_dev *dev, int addr, u8 reg, + u16 value) +{ + struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); + + gsw->mii_write(gsw, addr, reg, value); + + return 0; +} + +static const struct switch_attr mt753x_global[] = { + { + .type = SWITCH_TYPE_INT, + .name = "enable_vlan", + .description = "VLAN mode (1:enabled)", + .max = 1, + .id = MT753X_ATTR_ENABLE_VLAN, + .get = mt753x_get_vlan_enable, + .set = mt753x_set_vlan_enable, + } +}; + +static const struct switch_attr mt753x_port[] = { + { + .type = SWITCH_TYPE_STRING, + .name = "mib", + .description = "Get MIB counters for port", + .get = mt753x_get_port_mib, + .set = NULL, + }, +}; + +static const struct switch_attr mt753x_vlan[] = { + { + .type = SWITCH_TYPE_INT, + .name = "vid", + .description = "VLAN ID (0-4094)", + .set = mt753x_set_vid, + .get = mt753x_get_vid, + .max = 4094, + }, +}; + +static const struct switch_dev_ops mt753x_swdev_ops = { + .attr_global = { + .attr = mt753x_global, + .n_attr = ARRAY_SIZE(mt753x_global), + }, + .attr_port = { + .attr = mt753x_port, + .n_attr = ARRAY_SIZE(mt753x_port), + }, + .attr_vlan = { + .attr = mt753x_vlan, + .n_attr = ARRAY_SIZE(mt753x_vlan), + }, + .get_vlan_ports = mt753x_get_vlan_ports, + .set_vlan_ports = mt753x_set_vlan_ports, + .get_port_pvid = mt753x_get_port_pvid, + .set_port_pvid = mt753x_set_port_pvid, + .get_port_link = mt753x_get_port_link, + .set_port_link = mt753x_set_port_link, + .get_port_stats = mt753x_get_port_stats, + .apply_config = mt753x_apply_config, + .reset_switch = mt753x_reset_switch, + .phy_read16 = mt753x_phy_read16, + .phy_write16 = mt753x_phy_write16, +}; + +int mt753x_swconfig_init(struct gsw_mt753x *gsw) +{ + struct device_node *np = gsw->dev->of_node; + struct switch_dev *swdev; + int ret; + + if (of_property_read_u32(np, "mediatek,cpuport", &gsw->cpu_port)) + gsw->cpu_port = MT753X_DFL_CPU_PORT; + + swdev = &gsw->swdev; + + swdev->name = gsw->name; + swdev->alias = gsw->name; + swdev->cpu_port = gsw->cpu_port; + swdev->ports = MT753X_NUM_PORTS; + swdev->vlans = MT753X_NUM_VLANS; + swdev->ops = &mt753x_swdev_ops; + + ret = register_switch(swdev, NULL); + if (ret) { + dev_notice(gsw->dev, "Failed to register switch %s\n", + swdev->name); + return ret; + } + + mt753x_apply_config(swdev); + + return 0; +} + +void mt753x_swconfig_destroy(struct gsw_mt753x *gsw) +{ + unregister_switch(&gsw->swdev); +} |