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path: root/drivers/net/dsa/microchip/ksz_common.c
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Diffstat (limited to 'drivers/net/dsa/microchip/ksz_common.c')
-rw-r--r--drivers/net/dsa/microchip/ksz_common.c152
1 files changed, 126 insertions, 26 deletions
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 3fed406fb46a..f799be868274 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -277,6 +277,7 @@ static const struct ksz_dev_ops ksz8_dev_ops = {
.mirror_add = ksz8_port_mirror_add,
.mirror_del = ksz8_port_mirror_del,
.get_caps = ksz8_get_caps,
+ .phylink_mac_link_up = ksz8_phylink_mac_link_up,
.config_cpu_port = ksz8_config_cpu_port,
.enable_stp_addr = ksz8_enable_stp_addr,
.reset = ksz8_reset_switch,
@@ -1475,6 +1476,39 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.gbit_capable = {true, true, true},
},
+ [KSZ8567] = {
+ .chip_id = KSZ8567_CHIP_ID,
+ .dev_name = "KSZ8567",
+ .num_vlans = 4096,
+ .num_alus = 4096,
+ .num_statics = 16,
+ .cpu_ports = 0x7F, /* can be configured as cpu port */
+ .port_cnt = 7, /* total port count */
+ .port_nirqs = 3,
+ .num_tx_queues = 4,
+ .tc_cbs_supported = true,
+ .tc_ets_supported = true,
+ .ops = &ksz9477_dev_ops,
+ .mib_names = ksz9477_mib_names,
+ .mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
+ .reg_mib_cnt = MIB_COUNTER_NUM,
+ .regs = ksz9477_regs,
+ .masks = ksz9477_masks,
+ .shifts = ksz9477_shifts,
+ .xmii_ctrl0 = ksz9477_xmii_ctrl0,
+ .xmii_ctrl1 = ksz9477_xmii_ctrl1,
+ .supports_mii = {false, false, false, false,
+ false, true, true},
+ .supports_rmii = {false, false, false, false,
+ false, true, true},
+ .supports_rgmii = {false, false, false, false,
+ false, true, true},
+ .internal_phy = {true, true, true, true,
+ true, false, false},
+ .gbit_capable = {false, false, false, false, false,
+ true, true},
+ },
+
[KSZ9567] = {
.chip_id = KSZ9567_CHIP_ID,
.dev_name = "KSZ9567",
@@ -1672,15 +1706,23 @@ static const struct ksz_chip_data *ksz_lookup_info(unsigned int prod_num)
static int ksz_check_device_id(struct ksz_device *dev)
{
- const struct ksz_chip_data *dt_chip_data;
+ const struct ksz_chip_data *expected_chip_data;
+ u32 expected_chip_id;
- dt_chip_data = of_device_get_match_data(dev->dev);
+ if (dev->pdata) {
+ expected_chip_id = dev->pdata->chip_id;
+ expected_chip_data = ksz_lookup_info(expected_chip_id);
+ if (WARN_ON(!expected_chip_data))
+ return -ENODEV;
+ } else {
+ expected_chip_data = of_device_get_match_data(dev->dev);
+ expected_chip_id = expected_chip_data->chip_id;
+ }
- /* Check for Device Tree and Chip ID */
- if (dt_chip_data->chip_id != dev->chip_id) {
+ if (expected_chip_id != dev->chip_id) {
dev_err(dev->dev,
"Device tree specifies chip %s but found %s, please fix it!\n",
- dt_chip_data->dev_name, dev->info->dev_name);
+ expected_chip_data->dev_name, dev->info->dev_name);
return -ENODEV;
}
@@ -1855,6 +1897,29 @@ static void ksz_get_strings(struct dsa_switch *ds, int port,
}
}
+/**
+ * ksz_update_port_member - Adjust port forwarding rules based on STP state and
+ * isolation settings.
+ * @dev: A pointer to the struct ksz_device representing the device.
+ * @port: The port number to adjust.
+ *
+ * This function dynamically adjusts the port membership configuration for a
+ * specified port and other device ports, based on Spanning Tree Protocol (STP)
+ * states and port isolation settings. Each port, including the CPU port, has a
+ * membership register, represented as a bitfield, where each bit corresponds
+ * to a port number. A set bit indicates permission to forward frames to that
+ * port. This function iterates over all ports, updating the membership register
+ * to reflect current forwarding permissions:
+ *
+ * 1. Forwards frames only to ports that are part of the same bridge group and
+ * in the BR_STATE_FORWARDING state.
+ * 2. Takes into account the isolation status of ports; ports in the
+ * BR_STATE_FORWARDING state with BR_ISOLATED configuration will not forward
+ * frames to each other, even if they are in the same bridge group.
+ * 3. Ensures that the CPU port is included in the membership based on its
+ * upstream port configuration, allowing for management and control traffic
+ * to flow as required.
+ */
static void ksz_update_port_member(struct ksz_device *dev, int port)
{
struct ksz_port *p = &dev->ports[port];
@@ -1883,7 +1948,14 @@ static void ksz_update_port_member(struct ksz_device *dev, int port)
if (other_p->stp_state != BR_STATE_FORWARDING)
continue;
- if (p->stp_state == BR_STATE_FORWARDING) {
+ /* At this point we know that "port" and "other" port [i] are in
+ * the same bridge group and that "other" port [i] is in
+ * forwarding stp state. If "port" is also in forwarding stp
+ * state, we can allow forwarding from port [port] to port [i].
+ * Except if both ports are isolated.
+ */
+ if (p->stp_state == BR_STATE_FORWARDING &&
+ !(p->isolated && other_p->isolated)) {
val |= BIT(port);
port_member |= BIT(i);
}
@@ -1902,8 +1974,19 @@ static void ksz_update_port_member(struct ksz_device *dev, int port)
third_p = &dev->ports[j];
if (third_p->stp_state != BR_STATE_FORWARDING)
continue;
+
third_dp = dsa_to_port(ds, j);
- if (dsa_port_bridge_same(other_dp, third_dp))
+
+ /* Now we updating relation of the "other" port [i] to
+ * the "third" port [j]. We already know that "other"
+ * port [i] is in forwarding stp state and that "third"
+ * port [j] is in forwarding stp state too.
+ * We need to check if "other" port [i] and "third" port
+ * [j] are in the same bridge group and not isolated
+ * before allowing forwarding from port [i] to port [j].
+ */
+ if (dsa_port_bridge_same(other_dp, third_dp) &&
+ !(other_p->isolated && third_p->isolated))
val |= BIT(j);
}
@@ -2640,6 +2723,7 @@ static void ksz_port_teardown(struct dsa_switch *ds, int port)
switch (dev->chip_id) {
case KSZ8563_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case KSZ9477_CHIP_ID:
case KSZ9563_CHIP_ID:
case KSZ9567_CHIP_ID:
@@ -2655,7 +2739,7 @@ static int ksz_port_pre_bridge_flags(struct dsa_switch *ds, int port,
struct switchdev_brport_flags flags,
struct netlink_ext_ack *extack)
{
- if (flags.mask & ~BR_LEARNING)
+ if (flags.mask & ~(BR_LEARNING | BR_ISOLATED))
return -EINVAL;
return 0;
@@ -2668,8 +2752,12 @@ static int ksz_port_bridge_flags(struct dsa_switch *ds, int port,
struct ksz_device *dev = ds->priv;
struct ksz_port *p = &dev->ports[port];
- if (flags.mask & BR_LEARNING) {
- p->learning = !!(flags.val & BR_LEARNING);
+ if (flags.mask & (BR_LEARNING | BR_ISOLATED)) {
+ if (flags.mask & BR_LEARNING)
+ p->learning = !!(flags.val & BR_LEARNING);
+
+ if (flags.mask & BR_ISOLATED)
+ p->isolated = !!(flags.val & BR_ISOLATED);
/* Make the change take effect immediately */
ksz_port_stp_state_set(ds, port, p->stp_state);
@@ -2696,14 +2784,15 @@ static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds,
dev->chip_id == KSZ9563_CHIP_ID)
proto = DSA_TAG_PROTO_KSZ9893;
- if (dev->chip_id == KSZ9477_CHIP_ID ||
+ if (dev->chip_id == KSZ8567_CHIP_ID ||
+ dev->chip_id == KSZ9477_CHIP_ID ||
dev->chip_id == KSZ9896_CHIP_ID ||
dev->chip_id == KSZ9897_CHIP_ID ||
dev->chip_id == KSZ9567_CHIP_ID)
proto = DSA_TAG_PROTO_KSZ9477;
if (is_lan937x(dev))
- proto = DSA_TAG_PROTO_LAN937X_VALUE;
+ proto = DSA_TAG_PROTO_LAN937X;
return proto;
}
@@ -2713,10 +2802,18 @@ static int ksz_connect_tag_protocol(struct dsa_switch *ds,
{
struct ksz_tagger_data *tagger_data;
- tagger_data = ksz_tagger_data(ds);
- tagger_data->xmit_work_fn = ksz_port_deferred_xmit;
-
- return 0;
+ switch (proto) {
+ case DSA_TAG_PROTO_KSZ8795:
+ return 0;
+ case DSA_TAG_PROTO_KSZ9893:
+ case DSA_TAG_PROTO_KSZ9477:
+ case DSA_TAG_PROTO_LAN937X:
+ tagger_data = ksz_tagger_data(ds);
+ tagger_data->xmit_work_fn = ksz_port_deferred_xmit;
+ return 0;
+ default:
+ return -EPROTONOSUPPORT;
+ }
}
static int ksz_port_vlan_filtering(struct dsa_switch *ds, int port,
@@ -2796,6 +2893,7 @@ static int ksz_max_mtu(struct dsa_switch *ds, int port)
case KSZ8830_CHIP_ID:
return KSZ8863_HUGE_PACKET_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
case KSZ8563_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case KSZ9477_CHIP_ID:
case KSZ9563_CHIP_ID:
case KSZ9567_CHIP_ID:
@@ -2822,6 +2920,7 @@ static int ksz_validate_eee(struct dsa_switch *ds, int port)
switch (dev->chip_id) {
case KSZ8563_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case KSZ9477_CHIP_ID:
case KSZ9563_CHIP_ID:
case KSZ9567_CHIP_ID:
@@ -2835,7 +2934,7 @@ static int ksz_validate_eee(struct dsa_switch *ds, int port)
}
static int ksz_get_mac_eee(struct dsa_switch *ds, int port,
- struct ethtool_eee *e)
+ struct ethtool_keee *e)
{
int ret;
@@ -2855,7 +2954,7 @@ static int ksz_get_mac_eee(struct dsa_switch *ds, int port,
}
static int ksz_set_mac_eee(struct dsa_switch *ds, int port,
- struct ethtool_eee *e)
+ struct ethtool_keee *e)
{
struct ksz_device *dev = ds->priv;
int ret;
@@ -2966,8 +3065,10 @@ static void ksz_phylink_mac_config(struct dsa_switch *ds, int port,
{
struct ksz_device *dev = ds->priv;
- if (ksz_is_ksz88x3(dev))
+ if (ksz_is_ksz88x3(dev)) {
+ dev->ports[port].manual_flow = !(state->pause & MLO_PAUSE_AN);
return;
+ }
/* Internal PHYs */
if (dev->info->internal_phy[port])
@@ -3110,10 +3211,8 @@ static void ksz_phylink_mac_link_up(struct dsa_switch *ds, int port,
{
struct ksz_device *dev = ds->priv;
- if (dev->dev_ops->phylink_mac_link_up)
- dev->dev_ops->phylink_mac_link_up(dev, port, mode, interface,
- phydev, speed, duplex,
- tx_pause, rx_pause);
+ dev->dev_ops->phylink_mac_link_up(dev, port, mode, interface, phydev,
+ speed, duplex, tx_pause, rx_pause);
}
static int ksz_switch_detect(struct ksz_device *dev)
@@ -3166,6 +3265,7 @@ static int ksz_switch_detect(struct ksz_device *dev)
case KSZ9896_CHIP_ID:
case KSZ9897_CHIP_ID:
case KSZ9567_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case LAN9370_CHIP_ID:
case LAN9371_CHIP_ID:
case LAN9372_CHIP_ID:
@@ -3203,6 +3303,7 @@ static int ksz_cls_flower_add(struct dsa_switch *ds, int port,
switch (dev->chip_id) {
case KSZ8563_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case KSZ9477_CHIP_ID:
case KSZ9563_CHIP_ID:
case KSZ9567_CHIP_ID:
@@ -3222,6 +3323,7 @@ static int ksz_cls_flower_del(struct dsa_switch *ds, int port,
switch (dev->chip_id) {
case KSZ8563_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case KSZ9477_CHIP_ID:
case KSZ9563_CHIP_ID:
case KSZ9567_CHIP_ID:
@@ -4125,6 +4227,7 @@ static int ksz_parse_drive_strength(struct ksz_device *dev)
case KSZ8794_CHIP_ID:
case KSZ8765_CHIP_ID:
case KSZ8563_CHIP_ID:
+ case KSZ8567_CHIP_ID:
case KSZ9477_CHIP_ID:
case KSZ9563_CHIP_ID:
case KSZ9567_CHIP_ID:
@@ -4155,9 +4258,6 @@ int ksz_switch_register(struct ksz_device *dev)
int ret;
int i;
- if (dev->pdata)
- dev->chip_id = dev->pdata->chip_id;
-
dev->reset_gpio = devm_gpiod_get_optional(dev->dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(dev->reset_gpio))
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