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-rw-r--r--net/dsa/Kconfig3
-rw-r--r--net/dsa/Makefile1
-rw-r--r--net/dsa/dsa.c186
-rw-r--r--net/dsa/dsa_priv.h29
-rw-r--r--net/dsa/slave.c304
-rw-r--r--net/dsa/tag_brcm.c171
-rw-r--r--net/dsa/tag_dsa.c9
-rw-r--r--net/dsa/tag_edsa.c9
-rw-r--r--net/dsa/tag_trailer.c9
9 files changed, 614 insertions, 107 deletions
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index f5eede1d6cb8..a585fd6352eb 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -12,6 +12,9 @@ config NET_DSA
if NET_DSA
# tagging formats
+config NET_DSA_TAG_BRCM
+ bool
+
config NET_DSA_TAG_DSA
bool
diff --git a/net/dsa/Makefile b/net/dsa/Makefile
index 7b9fcbbeda5d..da06ed1df620 100644
--- a/net/dsa/Makefile
+++ b/net/dsa/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_NET_DSA) += dsa_core.o
dsa_core-y += dsa.o slave.o
# tagging formats
+dsa_core-$(CONFIG_NET_DSA_TAG_BRCM) += tag_brcm.o
dsa_core-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
dsa_core-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
dsa_core-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 0a49632fac47..22f34cf4cb27 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -10,7 +10,6 @@
*/
#include <linux/list.h>
-#include <linux/netdevice.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -44,7 +43,7 @@ void unregister_switch_driver(struct dsa_switch_driver *drv)
EXPORT_SYMBOL_GPL(unregister_switch_driver);
static struct dsa_switch_driver *
-dsa_switch_probe(struct mii_bus *bus, int sw_addr, char **_name)
+dsa_switch_probe(struct device *host_dev, int sw_addr, char **_name)
{
struct dsa_switch_driver *ret;
struct list_head *list;
@@ -59,7 +58,7 @@ dsa_switch_probe(struct mii_bus *bus, int sw_addr, char **_name)
drv = list_entry(list, struct dsa_switch_driver, list);
- name = drv->probe(bus, sw_addr);
+ name = drv->probe(host_dev, sw_addr);
if (name != NULL) {
ret = drv;
break;
@@ -76,7 +75,7 @@ dsa_switch_probe(struct mii_bus *bus, int sw_addr, char **_name)
/* basic switch operations **************************************************/
static struct dsa_switch *
dsa_switch_setup(struct dsa_switch_tree *dst, int index,
- struct device *parent, struct mii_bus *bus)
+ struct device *parent, struct device *host_dev)
{
struct dsa_chip_data *pd = dst->pd->chip + index;
struct dsa_switch_driver *drv;
@@ -89,7 +88,7 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
/*
* Probe for switch model.
*/
- drv = dsa_switch_probe(bus, pd->sw_addr, &name);
+ drv = dsa_switch_probe(host_dev, pd->sw_addr, &name);
if (drv == NULL) {
printk(KERN_ERR "%s[%d]: could not detect attached switch\n",
dst->master_netdev->name, index);
@@ -110,8 +109,7 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
ds->index = index;
ds->pd = dst->pd->chip + index;
ds->drv = drv;
- ds->master_mii_bus = bus;
-
+ ds->master_dev = host_dev;
/*
* Validate supplied switch configuration.
@@ -144,14 +142,44 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
goto out;
}
+ /* Make the built-in MII bus mask match the number of ports,
+ * switch drivers can override this later
+ */
+ ds->phys_mii_mask = ds->phys_port_mask;
+
/*
* If the CPU connects to this switch, set the switch tree
* tagging protocol to the preferred tagging format of this
* switch.
*/
- if (ds->dst->cpu_switch == index)
- ds->dst->tag_protocol = drv->tag_protocol;
+ if (dst->cpu_switch == index) {
+ switch (drv->tag_protocol) {
+#ifdef CONFIG_NET_DSA_TAG_DSA
+ case DSA_TAG_PROTO_DSA:
+ dst->rcv = dsa_netdev_ops.rcv;
+ break;
+#endif
+#ifdef CONFIG_NET_DSA_TAG_EDSA
+ case DSA_TAG_PROTO_EDSA:
+ dst->rcv = edsa_netdev_ops.rcv;
+ break;
+#endif
+#ifdef CONFIG_NET_DSA_TAG_TRAILER
+ case DSA_TAG_PROTO_TRAILER:
+ dst->rcv = trailer_netdev_ops.rcv;
+ break;
+#endif
+#ifdef CONFIG_NET_DSA_TAG_BRCM
+ case DSA_TAG_PROTO_BRCM:
+ dst->rcv = brcm_netdev_ops.rcv;
+ break;
+#endif
+ default:
+ break;
+ }
+ dst->tag_protocol = drv->tag_protocol;
+ }
/*
* Do basic register setup.
@@ -210,6 +238,51 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
{
}
+#ifdef CONFIG_PM_SLEEP
+static int dsa_switch_suspend(struct dsa_switch *ds)
+{
+ int i, ret = 0;
+
+ /* Suspend slave network devices */
+ for (i = 0; i < DSA_MAX_PORTS; i++) {
+ if (!(ds->phys_port_mask & (1 << i)))
+ continue;
+
+ ret = dsa_slave_suspend(ds->ports[i]);
+ if (ret)
+ return ret;
+ }
+
+ if (ds->drv->suspend)
+ ret = ds->drv->suspend(ds);
+
+ return ret;
+}
+
+static int dsa_switch_resume(struct dsa_switch *ds)
+{
+ int i, ret = 0;
+
+ if (ds->drv->resume)
+ ret = ds->drv->resume(ds);
+
+ if (ret)
+ return ret;
+
+ /* Resume slave network devices */
+ for (i = 0; i < DSA_MAX_PORTS; i++) {
+ if (!(ds->phys_port_mask & (1 << i)))
+ continue;
+
+ ret = dsa_slave_resume(ds->ports[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+#endif
+
/* link polling *************************************************************/
static void dsa_link_poll_work(struct work_struct *ugly)
@@ -256,7 +329,7 @@ static struct device *dev_find_class(struct device *parent, char *class)
return device_find_child(parent, class, dev_is_class);
}
-static struct mii_bus *dev_to_mii_bus(struct device *dev)
+struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev)
{
struct device *d;
@@ -272,6 +345,7 @@ static struct mii_bus *dev_to_mii_bus(struct device *dev)
return NULL;
}
+EXPORT_SYMBOL_GPL(dsa_host_dev_to_mii_bus);
static struct net_device *dev_to_net_device(struct device *dev)
{
@@ -410,7 +484,8 @@ static int dsa_of_probe(struct platform_device *pdev)
chip_index++;
cd = &pd->chip[chip_index];
- cd->mii_bus = &mdio_bus->dev;
+ cd->of_node = child;
+ cd->host_dev = &mdio_bus->dev;
sw_addr = of_get_property(child, "reg", NULL);
if (!sw_addr)
@@ -431,6 +506,8 @@ static int dsa_of_probe(struct platform_device *pdev)
if (!port_name)
continue;
+ cd->port_dn[port_index] = port;
+
cd->port_names[port_index] = kstrdup(port_name,
GFP_KERNEL);
if (!cd->port_names[port_index]) {
@@ -534,17 +611,9 @@ static int dsa_probe(struct platform_device *pdev)
dst->cpu_port = -1;
for (i = 0; i < pd->nr_chips; i++) {
- struct mii_bus *bus;
struct dsa_switch *ds;
- bus = dev_to_mii_bus(pd->chip[i].mii_bus);
- if (bus == NULL) {
- printk(KERN_ERR "%s[%d]: no mii bus found for "
- "dsa switch\n", dev->name, i);
- continue;
- }
-
- ds = dsa_switch_setup(dst, i, &pdev->dev, bus);
+ ds = dsa_switch_setup(dst, i, &pdev->dev, pd->chip[i].host_dev);
if (IS_ERR(ds)) {
printk(KERN_ERR "%s[%d]: couldn't create dsa switch "
"instance (error %ld)\n", dev->name, i,
@@ -608,7 +677,62 @@ static void dsa_shutdown(struct platform_device *pdev)
{
}
+static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
+{
+ struct dsa_switch_tree *dst = dev->dsa_ptr;
+
+ if (unlikely(dst == NULL)) {
+ kfree_skb(skb);
+ return 0;
+ }
+
+ return dst->rcv(skb, dev, pt, orig_dev);
+}
+
+static struct packet_type dsa_pack_type __read_mostly = {
+ .type = cpu_to_be16(ETH_P_XDSA),
+ .func = dsa_switch_rcv,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int dsa_suspend(struct device *d)
+{
+ struct platform_device *pdev = to_platform_device(d);
+ struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
+ int i, ret = 0;
+
+ for (i = 0; i < dst->pd->nr_chips; i++) {
+ struct dsa_switch *ds = dst->ds[i];
+
+ if (ds != NULL)
+ ret = dsa_switch_suspend(ds);
+ }
+
+ return ret;
+}
+
+static int dsa_resume(struct device *d)
+{
+ struct platform_device *pdev = to_platform_device(d);
+ struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
+ int i, ret = 0;
+
+ for (i = 0; i < dst->pd->nr_chips; i++) {
+ struct dsa_switch *ds = dst->ds[i];
+
+ if (ds != NULL)
+ ret = dsa_switch_resume(ds);
+ }
+
+ return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(dsa_pm_ops, dsa_suspend, dsa_resume);
+
static const struct of_device_id dsa_of_match_table[] = {
+ { .compatible = "brcm,bcm7445-switch-v4.0" },
{ .compatible = "marvell,dsa", },
{}
};
@@ -622,6 +746,7 @@ static struct platform_driver dsa_driver = {
.name = "dsa",
.owner = THIS_MODULE,
.of_match_table = dsa_of_match_table,
+ .pm = &dsa_pm_ops,
},
};
@@ -633,30 +758,15 @@ static int __init dsa_init_module(void)
if (rc)
return rc;
-#ifdef CONFIG_NET_DSA_TAG_DSA
- dev_add_pack(&dsa_packet_type);
-#endif
-#ifdef CONFIG_NET_DSA_TAG_EDSA
- dev_add_pack(&edsa_packet_type);
-#endif
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
- dev_add_pack(&trailer_packet_type);
-#endif
+ dev_add_pack(&dsa_pack_type);
+
return 0;
}
module_init(dsa_init_module);
static void __exit dsa_cleanup_module(void)
{
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
- dev_remove_pack(&trailer_packet_type);
-#endif
-#ifdef CONFIG_NET_DSA_TAG_EDSA
- dev_remove_pack(&edsa_packet_type);
-#endif
-#ifdef CONFIG_NET_DSA_TAG_DSA
- dev_remove_pack(&dsa_packet_type);
-#endif
+ dev_remove_pack(&dsa_pack_type);
platform_driver_unregister(&dsa_driver);
}
module_exit(dsa_cleanup_module);
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index d4cf5cc747e3..dc9756d3154c 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -12,7 +12,13 @@
#define __DSA_PRIV_H
#include <linux/phy.h>
-#include <net/dsa.h>
+#include <linux/netdevice.h>
+
+struct dsa_device_ops {
+ netdev_tx_t (*xmit)(struct sk_buff *skb, struct net_device *dev);
+ int (*rcv)(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev);
+};
struct dsa_slave_priv {
/*
@@ -20,6 +26,8 @@ struct dsa_slave_priv {
* switch port.
*/
struct net_device *dev;
+ netdev_tx_t (*xmit)(struct sk_buff *skb,
+ struct net_device *dev);
/*
* Which switch this port is a part of, and the port index
@@ -33,28 +41,35 @@ struct dsa_slave_priv {
* to this port.
*/
struct phy_device *phy;
+ phy_interface_t phy_interface;
+ int old_link;
+ int old_pause;
+ int old_duplex;
};
/* dsa.c */
extern char dsa_driver_version[];
/* slave.c */
+extern const struct dsa_device_ops notag_netdev_ops;
void dsa_slave_mii_bus_init(struct dsa_switch *ds);
struct net_device *dsa_slave_create(struct dsa_switch *ds,
struct device *parent,
int port, char *name);
+int dsa_slave_suspend(struct net_device *slave_dev);
+int dsa_slave_resume(struct net_device *slave_dev);
/* tag_dsa.c */
-netdev_tx_t dsa_xmit(struct sk_buff *skb, struct net_device *dev);
-extern struct packet_type dsa_packet_type;
+extern const struct dsa_device_ops dsa_netdev_ops;
/* tag_edsa.c */
-netdev_tx_t edsa_xmit(struct sk_buff *skb, struct net_device *dev);
-extern struct packet_type edsa_packet_type;
+extern const struct dsa_device_ops edsa_netdev_ops;
/* tag_trailer.c */
-netdev_tx_t trailer_xmit(struct sk_buff *skb, struct net_device *dev);
-extern struct packet_type trailer_packet_type;
+extern const struct dsa_device_ops trailer_netdev_ops;
+
+/* tag_brcm.c */
+extern const struct dsa_device_ops brcm_netdev_ops;
#endif
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 45a1e34c89e0..8030489d9cbe 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -9,9 +9,10 @@
*/
#include <linux/list.h>
-#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/phy.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
#include "dsa_priv.h"
/* slave mii_bus handling ***************************************************/
@@ -19,7 +20,7 @@ static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
{
struct dsa_switch *ds = bus->priv;
- if (ds->phys_port_mask & (1 << addr))
+ if (ds->phys_mii_mask & (1 << addr))
return ds->drv->phy_read(ds, addr, reg);
return 0xffff;
@@ -29,7 +30,7 @@ static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
struct dsa_switch *ds = bus->priv;
- if (ds->phys_port_mask & (1 << addr))
+ if (ds->phys_mii_mask & (1 << addr))
return ds->drv->phy_write(ds, addr, reg, val);
return 0;
@@ -43,7 +44,7 @@ void dsa_slave_mii_bus_init(struct dsa_switch *ds)
ds->slave_mii_bus->write = dsa_slave_phy_write;
snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x",
ds->index, ds->pd->sw_addr);
- ds->slave_mii_bus->parent = &ds->master_mii_bus->dev;
+ ds->slave_mii_bus->parent = ds->master_dev;
}
@@ -61,6 +62,7 @@ static int dsa_slave_open(struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct net_device *master = p->parent->dst->master_netdev;
+ struct dsa_switch *ds = p->parent;
int err;
if (!(master->flags & IFF_UP))
@@ -83,8 +85,20 @@ static int dsa_slave_open(struct net_device *dev)
goto clear_allmulti;
}
+ if (ds->drv->port_enable) {
+ err = ds->drv->port_enable(ds, p->port, p->phy);
+ if (err)
+ goto clear_promisc;
+ }
+
+ if (p->phy)
+ phy_start(p->phy);
+
return 0;
+clear_promisc:
+ if (dev->flags & IFF_PROMISC)
+ dev_set_promiscuity(master, 0);
clear_allmulti:
if (dev->flags & IFF_ALLMULTI)
dev_set_allmulti(master, -1);
@@ -99,6 +113,10 @@ static int dsa_slave_close(struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct net_device *master = p->parent->dst->master_netdev;
+ struct dsa_switch *ds = p->parent;
+
+ if (p->phy)
+ phy_stop(p->phy);
dev_mc_unsync(master, dev);
dev_uc_unsync(master, dev);
@@ -110,6 +128,9 @@ static int dsa_slave_close(struct net_device *dev)
if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
dev_uc_del(master, dev->dev_addr);
+ if (ds->drv->port_disable)
+ ds->drv->port_disable(ds, p->port, p->phy);
+
return 0;
}
@@ -171,6 +192,24 @@ static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return -EOPNOTSUPP;
}
+static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+
+ return p->xmit(skb, dev);
+}
+
+static netdev_tx_t dsa_slave_notag_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+
+ skb->dev = p->parent->dst->master_netdev;
+ dev_queue_xmit(skb);
+
+ return NETDEV_TX_OK;
+}
+
/* ethtool operations *******************************************************/
static int
@@ -282,6 +321,65 @@ static int dsa_slave_get_sset_count(struct net_device *dev, int sset)
return -EOPNOTSUPP;
}
+static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+
+ if (ds->drv->get_wol)
+ ds->drv->get_wol(ds, p->port, w);
+}
+
+static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+ int ret = -EOPNOTSUPP;
+
+ if (ds->drv->set_wol)
+ ret = ds->drv->set_wol(ds, p->port, w);
+
+ return ret;
+}
+
+static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+ int ret;
+
+ if (!ds->drv->set_eee)
+ return -EOPNOTSUPP;
+
+ ret = ds->drv->set_eee(ds, p->port, p->phy, e);
+ if (ret)
+ return ret;
+
+ if (p->phy)
+ ret = phy_ethtool_set_eee(p->phy, e);
+
+ return ret;
+}
+
+static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+ int ret;
+
+ if (!ds->drv->get_eee)
+ return -EOPNOTSUPP;
+
+ ret = ds->drv->get_eee(ds, p->port, e);
+ if (ret)
+ return ret;
+
+ if (p->phy)
+ ret = phy_ethtool_get_eee(p->phy, e);
+
+ return ret;
+}
+
static const struct ethtool_ops dsa_slave_ethtool_ops = {
.get_settings = dsa_slave_get_settings,
.set_settings = dsa_slave_set_settings,
@@ -291,46 +389,143 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = {
.get_strings = dsa_slave_get_strings,
.get_ethtool_stats = dsa_slave_get_ethtool_stats,
.get_sset_count = dsa_slave_get_sset_count,
+ .set_wol = dsa_slave_set_wol,
+ .get_wol = dsa_slave_get_wol,
+ .set_eee = dsa_slave_set_eee,
+ .get_eee = dsa_slave_get_eee,
};
-#ifdef CONFIG_NET_DSA_TAG_DSA
-static const struct net_device_ops dsa_netdev_ops = {
+static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_init = dsa_slave_init,
.ndo_open = dsa_slave_open,
.ndo_stop = dsa_slave_close,
- .ndo_start_xmit = dsa_xmit,
+ .ndo_start_xmit = dsa_slave_xmit,
.ndo_change_rx_flags = dsa_slave_change_rx_flags,
.ndo_set_rx_mode = dsa_slave_set_rx_mode,
.ndo_set_mac_address = dsa_slave_set_mac_address,
.ndo_do_ioctl = dsa_slave_ioctl,
};
-#endif
-#ifdef CONFIG_NET_DSA_TAG_EDSA
-static const struct net_device_ops edsa_netdev_ops = {
- .ndo_init = dsa_slave_init,
- .ndo_open = dsa_slave_open,
- .ndo_stop = dsa_slave_close,
- .ndo_start_xmit = edsa_xmit,
- .ndo_change_rx_flags = dsa_slave_change_rx_flags,
- .ndo_set_rx_mode = dsa_slave_set_rx_mode,
- .ndo_set_mac_address = dsa_slave_set_mac_address,
- .ndo_do_ioctl = dsa_slave_ioctl,
-};
-#endif
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
-static const struct net_device_ops trailer_netdev_ops = {
- .ndo_init = dsa_slave_init,
- .ndo_open = dsa_slave_open,
- .ndo_stop = dsa_slave_close,
- .ndo_start_xmit = trailer_xmit,
- .ndo_change_rx_flags = dsa_slave_change_rx_flags,
- .ndo_set_rx_mode = dsa_slave_set_rx_mode,
- .ndo_set_mac_address = dsa_slave_set_mac_address,
- .ndo_do_ioctl = dsa_slave_ioctl,
-};
-#endif
+
+static void dsa_slave_adjust_link(struct net_device *dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+ unsigned int status_changed = 0;
+
+ if (p->old_link != p->phy->link) {
+ status_changed = 1;
+ p->old_link = p->phy->link;
+ }
+
+ if (p->old_duplex != p->phy->duplex) {
+ status_changed = 1;
+ p->old_duplex = p->phy->duplex;
+ }
+
+ if (p->old_pause != p->phy->pause) {
+ status_changed = 1;
+ p->old_pause = p->phy->pause;
+ }
+
+ if (ds->drv->adjust_link && status_changed)
+ ds->drv->adjust_link(ds, p->port, p->phy);
+
+ if (status_changed)
+ phy_print_status(p->phy);
+}
+
+static int dsa_slave_fixed_link_update(struct net_device *dev,
+ struct fixed_phy_status *status)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ struct dsa_switch *ds = p->parent;
+
+ if (ds->drv->fixed_link_update)
+ ds->drv->fixed_link_update(ds, p->port, status);
+
+ return 0;
+}
/* slave device setup *******************************************************/
+static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
+ struct net_device *slave_dev)
+{
+ struct dsa_switch *ds = p->parent;
+ struct dsa_chip_data *cd = ds->pd;
+ struct device_node *phy_dn, *port_dn;
+ bool phy_is_fixed = false;
+ u32 phy_flags = 0;
+ int ret;
+
+ port_dn = cd->port_dn[p->port];
+ p->phy_interface = of_get_phy_mode(port_dn);
+
+ phy_dn = of_parse_phandle(port_dn, "phy-handle", 0);
+ if (of_phy_is_fixed_link(port_dn)) {
+ /* In the case of a fixed PHY, the DT node associated
+ * to the fixed PHY is the Port DT node
+ */
+ ret = of_phy_register_fixed_link(port_dn);
+ if (ret) {
+ pr_err("failed to register fixed PHY\n");
+ return;
+ }
+ phy_is_fixed = true;
+ phy_dn = port_dn;
+ }
+
+ if (ds->drv->get_phy_flags)
+ phy_flags = ds->drv->get_phy_flags(ds, p->port);
+
+ if (phy_dn)
+ p->phy = of_phy_connect(slave_dev, phy_dn,
+ dsa_slave_adjust_link, phy_flags,
+ p->phy_interface);
+
+ if (p->phy && phy_is_fixed)
+ fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update);
+
+ /* We could not connect to a designated PHY, so use the switch internal
+ * MDIO bus instead
+ */
+ if (!p->phy)
+ p->phy = ds->slave_mii_bus->phy_map[p->port];
+ else
+ pr_info("attached PHY at address %d [%s]\n",
+ p->phy->addr, p->phy->drv->name);
+}
+
+int dsa_slave_suspend(struct net_device *slave_dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(slave_dev);
+
+ netif_device_detach(slave_dev);
+
+ if (p->phy) {
+ phy_stop(p->phy);
+ p->old_pause = -1;
+ p->old_link = -1;
+ p->old_duplex = -1;
+ phy_suspend(p->phy);
+ }
+
+ return 0;
+}
+
+int dsa_slave_resume(struct net_device *slave_dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(slave_dev);
+
+ netif_device_attach(slave_dev);
+
+ if (p->phy) {
+ phy_resume(p->phy);
+ phy_start(p->phy);
+ }
+
+ return 0;
+}
+
struct net_device *
dsa_slave_create(struct dsa_switch *ds, struct device *parent,
int port, char *name)
@@ -349,35 +544,48 @@ dsa_slave_create(struct dsa_switch *ds, struct device *parent,
slave_dev->ethtool_ops = &dsa_slave_ethtool_ops;
eth_hw_addr_inherit(slave_dev, master);
slave_dev->tx_queue_len = 0;
+ slave_dev->netdev_ops = &dsa_slave_netdev_ops;
+
+ SET_NETDEV_DEV(slave_dev, parent);
+ slave_dev->dev.of_node = ds->pd->port_dn[port];
+ slave_dev->vlan_features = master->vlan_features;
+
+ p = netdev_priv(slave_dev);
+ p->dev = slave_dev;
+ p->parent = ds;
+ p->port = port;
switch (ds->dst->tag_protocol) {
#ifdef CONFIG_NET_DSA_TAG_DSA
- case htons(ETH_P_DSA):
- slave_dev->netdev_ops = &dsa_netdev_ops;
+ case DSA_TAG_PROTO_DSA:
+ p->xmit = dsa_netdev_ops.xmit;
break;
#endif
#ifdef CONFIG_NET_DSA_TAG_EDSA
- case htons(ETH_P_EDSA):
- slave_dev->netdev_ops = &edsa_netdev_ops;
+ case DSA_TAG_PROTO_EDSA:
+ p->xmit = edsa_netdev_ops.xmit;
break;
#endif
#ifdef CONFIG_NET_DSA_TAG_TRAILER
- case htons(ETH_P_TRAILER):
- slave_dev->netdev_ops = &trailer_netdev_ops;
+ case DSA_TAG_PROTO_TRAILER:
+ p->xmit = trailer_netdev_ops.xmit;
+ break;
+#endif
+#ifdef CONFIG_NET_DSA_TAG_BRCM
+ case DSA_TAG_PROTO_BRCM:
+ p->xmit = brcm_netdev_ops.xmit;
break;
#endif
default:
- BUG();
+ p->xmit = dsa_slave_notag_xmit;
+ break;
}
- SET_NETDEV_DEV(slave_dev, parent);
- slave_dev->vlan_features = master->vlan_features;
+ p->old_pause = -1;
+ p->old_link = -1;
+ p->old_duplex = -1;
- p = netdev_priv(slave_dev);
- p->dev = slave_dev;
- p->parent = ds;
- p->port = port;
- p->phy = ds->slave_mii_bus->phy_map[port];
+ dsa_slave_phy_setup(p, slave_dev);
ret = register_netdev(slave_dev);
if (ret) {
@@ -390,6 +598,9 @@ dsa_slave_create(struct dsa_switch *ds, struct device *parent,
netif_carrier_off(slave_dev);
if (p->phy != NULL) {
+ if (ds->drv->get_phy_flags(ds, port))
+ p->phy->dev_flags |= ds->drv->get_phy_flags(ds, port);
+
phy_attach(slave_dev, dev_name(&p->phy->dev),
PHY_INTERFACE_MODE_GMII);
@@ -397,7 +608,6 @@ dsa_slave_create(struct dsa_switch *ds, struct device *parent,
p->phy->speed = 0;
p->phy->duplex = 0;
p->phy->advertising = p->phy->supported | ADVERTISED_Autoneg;
- phy_start_aneg(p->phy);
}
return slave_dev;
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c
new file mode 100644
index 000000000000..83d3572cdb20
--- /dev/null
+++ b/net/dsa/tag_brcm.c
@@ -0,0 +1,171 @@
+/*
+ * Broadcom tag support
+ *
+ * Copyright (C) 2014 Broadcom Corporation
+ *
+ * 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.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include "dsa_priv.h"
+
+/* This tag length is 4 bytes, older ones were 6 bytes, we do not
+ * handle them
+ */
+#define BRCM_TAG_LEN 4
+
+/* Tag is constructed and desconstructed using byte by byte access
+ * because the tag is placed after the MAC Source Address, which does
+ * not make it 4-bytes aligned, so this might cause unaligned accesses
+ * on most systems where this is used.
+ */
+
+/* Ingress and egress opcodes */
+#define BRCM_OPCODE_SHIFT 5
+#define BRCM_OPCODE_MASK 0x7
+
+/* Ingress fields */
+/* 1st byte in the tag */
+#define BRCM_IG_TC_SHIFT 2
+#define BRCM_IG_TC_MASK 0x7
+/* 2nd byte in the tag */
+#define BRCM_IG_TE_MASK 0x3
+#define BRCM_IG_TS_SHIFT 7
+/* 3rd byte in the tag */
+#define BRCM_IG_DSTMAP2_MASK 1
+#define BRCM_IG_DSTMAP1_MASK 0xff
+
+/* Egress fields */
+
+/* 2nd byte in the tag */
+#define BRCM_EG_CID_MASK 0xff
+
+/* 3rd byte in the tag */
+#define BRCM_EG_RC_MASK 0xff
+#define BRCM_EG_RC_RSVD (3 << 6)
+#define BRCM_EG_RC_EXCEPTION (1 << 5)
+#define BRCM_EG_RC_PROT_SNOOP (1 << 4)
+#define BRCM_EG_RC_PROT_TERM (1 << 3)
+#define BRCM_EG_RC_SWITCH (1 << 2)
+#define BRCM_EG_RC_MAC_LEARN (1 << 1)
+#define BRCM_EG_RC_MIRROR (1 << 0)
+#define BRCM_EG_TC_SHIFT 5
+#define BRCM_EG_TC_MASK 0x7
+#define BRCM_EG_PID_MASK 0x1f
+
+static netdev_tx_t brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+ u8 *brcm_tag;
+
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
+
+ if (skb_cow_head(skb, BRCM_TAG_LEN) < 0)
+ goto out_free;
+
+ skb_push(skb, BRCM_TAG_LEN);
+
+ memmove(skb->data, skb->data + BRCM_TAG_LEN, 2 * ETH_ALEN);
+
+ /* Build the tag after the MAC Source Address */
+ brcm_tag = skb->data + 2 * ETH_ALEN;
+
+ /* Set the ingress opcode, traffic class, tag enforcment is
+ * deprecated
+ */
+ brcm_tag[0] = (1 << BRCM_OPCODE_SHIFT) |
+ ((skb->priority << BRCM_IG_TC_SHIFT) & BRCM_IG_TC_MASK);
+ brcm_tag[1] = 0;
+ brcm_tag[2] = 0;
+ if (p->port == 8)
+ brcm_tag[2] = BRCM_IG_DSTMAP2_MASK;
+ brcm_tag[3] = (1 << p->port) & BRCM_IG_DSTMAP1_MASK;
+
+ /* Queue the SKB for transmission on the parent interface, but
+ * do not modify its EtherType
+ */
+ skb->dev = p->parent->dst->master_netdev;
+ dev_queue_xmit(skb);
+
+ return NETDEV_TX_OK;
+
+out_free:
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+}
+
+static int brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
+{
+ struct dsa_switch_tree *dst = dev->dsa_ptr;
+ struct dsa_switch *ds;
+ int source_port;
+ u8 *brcm_tag;
+
+ if (unlikely(dst == NULL))
+ goto out_drop;
+
+ ds = dst->ds[0];
+
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (skb == NULL)
+ goto out;
+
+ if (unlikely(!pskb_may_pull(skb, BRCM_TAG_LEN)))
+ goto out_drop;
+
+ /* skb->data points to the EtherType, the tag is right before it */
+ brcm_tag = skb->data - 2;
+
+ /* The opcode should never be different than 0b000 */
+ if (unlikely((brcm_tag[0] >> BRCM_OPCODE_SHIFT) & BRCM_OPCODE_MASK))
+ goto out_drop;
+
+ /* We should never see a reserved reason code without knowing how to
+ * handle it
+ */
+ WARN_ON(brcm_tag[2] & BRCM_EG_RC_RSVD);
+
+ /* Locate which port this is coming from */
+ source_port = brcm_tag[3] & BRCM_EG_PID_MASK;
+
+ /* Validate port against switch setup, either the port is totally */
+ if (source_port >= DSA_MAX_PORTS || ds->ports[source_port] == NULL)
+ goto out_drop;
+
+ /* Remove Broadcom tag and update checksum */
+ skb_pull_rcsum(skb, BRCM_TAG_LEN);
+
+ /* Move the Ethernet DA and SA */
+ memmove(skb->data - ETH_HLEN,
+ skb->data - ETH_HLEN - BRCM_TAG_LEN,
+ 2 * ETH_ALEN);
+
+ skb_push(skb, ETH_HLEN);
+ skb->pkt_type = PACKET_HOST;
+ skb->dev = ds->ports[source_port];
+ skb->protocol = eth_type_trans(skb, skb->dev);
+
+ skb->dev->stats.rx_packets++;
+ skb->dev->stats.rx_bytes += skb->len;
+
+ netif_receive_skb(skb);
+
+ return 0;
+
+out_drop:
+ kfree_skb(skb);
+out:
+ return 0;
+}
+
+const struct dsa_device_ops brcm_netdev_ops = {
+ .xmit = brcm_tag_xmit,
+ .rcv = brcm_tag_rcv,
+};
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index cacce1e22f9c..ce90c8bdc658 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -10,13 +10,12 @@
#include <linux/etherdevice.h>
#include <linux/list.h>
-#include <linux/netdevice.h>
#include <linux/slab.h>
#include "dsa_priv.h"
#define DSA_HLEN 4
-netdev_tx_t dsa_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t dsa_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
u8 *dsa_header;
@@ -186,7 +185,7 @@ out:
return 0;
}
-struct packet_type dsa_packet_type __read_mostly = {
- .type = cpu_to_be16(ETH_P_DSA),
- .func = dsa_rcv,
+const struct dsa_device_ops dsa_netdev_ops = {
+ .xmit = dsa_xmit,
+ .rcv = dsa_rcv,
};
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c
index e70c43c25e64..94fcce778679 100644
--- a/net/dsa/tag_edsa.c
+++ b/net/dsa/tag_edsa.c
@@ -10,14 +10,13 @@
#include <linux/etherdevice.h>
#include <linux/list.h>
-#include <linux/netdevice.h>
#include <linux/slab.h>
#include "dsa_priv.h"
#define DSA_HLEN 4
#define EDSA_HLEN 8
-netdev_tx_t edsa_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t edsa_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
u8 *edsa_header;
@@ -205,7 +204,7 @@ out:
return 0;
}
-struct packet_type edsa_packet_type __read_mostly = {
- .type = cpu_to_be16(ETH_P_EDSA),
- .func = edsa_rcv,
+const struct dsa_device_ops edsa_netdev_ops = {
+ .xmit = edsa_xmit,
+ .rcv = edsa_rcv,
};
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index 94bc260d015d..115fdca34077 100644
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -10,11 +10,10 @@
#include <linux/etherdevice.h>
#include <linux/list.h>
-#include <linux/netdevice.h>
#include <linux/slab.h>
#include "dsa_priv.h"
-netdev_tx_t trailer_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t trailer_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct sk_buff *nskb;
@@ -114,7 +113,7 @@ out:
return 0;
}
-struct packet_type trailer_packet_type __read_mostly = {
- .type = cpu_to_be16(ETH_P_TRAILER),
- .func = trailer_rcv,
+const struct dsa_device_ops trailer_netdev_ops = {
+ .xmit = trailer_xmit,
+ .rcv = trailer_rcv,
};
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-12 01:09:00 +0300