--- /dev/null
+// 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);
+}
projects / openwrt / openwrt.git / blobdiff