1 files changed, 510 insertions, 0 deletions
diff --git a/target/linux/mediatek/files-5.10/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c b/target/linux/mediatek/files-5.10/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c
new file mode 100644
index 0000000000..342ad576b2
--- /dev/null
+++ b/target/linux/mediatek/files-5.10/drivers/net/phy/mtk/mt753x/mt753x_swconfig.c
@@ -0,0 +1,510 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * 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);
+}