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authorJohn Crispin <john@openwrt.org>2013-04-09 14:19:09 +0000
committerJohn Crispin <john@openwrt.org>2013-04-09 14:19:09 +0000
commitfff58a5801f538b6600d41fc7116414cbc730786 (patch)
tree720d3d2d93d266dd589e860820dbfbca46133062 /target/linux/generic
parentf13ae9965cd593f42f18f2e7192a27cdce7441c4 (diff)
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allow loading port maps from OF
Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 36283
Diffstat (limited to 'target/linux/generic')
-rw-r--r--target/linux/generic/files/drivers/net/phy/swconfig.c73
-rw-r--r--target/linux/generic/files/include/linux/switch.h7
-rw-r--r--target/linux/generic/files/include/uapi/linux/switch.h9
3 files changed, 89 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/swconfig.c b/target/linux/generic/files/drivers/net/phy/swconfig.c
index 34f43bf..5e95ab3 100644
--- a/target/linux/generic/files/drivers/net/phy/swconfig.c
+++ b/target/linux/generic/files/drivers/net/phy/swconfig.c
@@ -23,6 +23,7 @@
#include <linux/capability.h>
#include <linux/skbuff.h>
#include <linux/switch.h>
+#include <linux/of.h>
//#define DEBUG 1
#ifdef DEBUG
@@ -844,7 +845,9 @@ static int
swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
const struct switch_dev *dev)
{
+ struct nlattr *p = NULL, *m = NULL;
void *hdr;
+ int i;
hdr = genlmsg_put(msg, pid, seq, &switch_fam, flags,
SWITCH_CMD_NEW_ATTR);
@@ -866,6 +869,22 @@ swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
if (nla_put_u32(msg, SWITCH_ATTR_CPU_PORT, dev->cpu_port))
goto nla_put_failure;
+ m = nla_nest_start(msg, SWITCH_ATTR_PORTMAP);
+ if (!m)
+ goto nla_put_failure;
+ for (i = 0; i < dev->ports; i++) {
+ p = nla_nest_start(msg, SWITCH_ATTR_PORTS);
+ if (!p)
+ continue;
+ if (dev->portmap[i].s) {
+ if (nla_put_string(msg, SWITCH_PORTMAP_SEGMENT, dev->portmap[i].s))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, SWITCH_PORTMAP_VIRT, dev->portmap[i].virt))
+ goto nla_put_failure;
+ }
+ nla_nest_end(msg, p);
+ }
+ nla_nest_end(msg, m);
return genlmsg_end(msg, hdr);
nla_put_failure:
genlmsg_cancel(msg, hdr);
@@ -954,6 +973,49 @@ static struct genl_ops swconfig_ops[] = {
}
};
+#ifdef CONFIG_OF
+void
+of_switch_load_portmap(struct switch_dev *dev)
+{
+ struct device_node *port;
+
+ if (!dev->of_node)
+ return;
+
+ for_each_child_of_node(dev->of_node, port) {
+ const __be32 *prop;
+ const char *segment;
+ int size, phys;
+
+ if (of_device_is_compatible(port, "swconfig,port"))
+ continue;
+
+ if (of_property_read_string(port, "swconfig,segment", &segment))
+ continue;
+
+ prop = of_get_property(port, "swconfig,portmap", &size);
+ if (!prop)
+ continue;
+
+ if (size != (2 * sizeof(*prop))) {
+ pr_err("%s: failed to parse port mapping\n", port->name);
+ continue;
+ }
+
+ phys = be32_to_cpup(prop++);
+ if ((phys < 0) | (phys >= dev->ports)) {
+ pr_err("%s: physical port index out of range\n", port->name);
+ continue;
+ }
+
+ dev->portmap[phys].s = kstrdup(segment, GFP_KERNEL);
+ dev->portmap[phys].virt = be32_to_cpup(prop);
+ pr_debug("Found port: %s, physical: %d, virtual: %d\n",
+ segment, phys, dev->portmap[phys].virt);
+ }
+}
+#endif
+
int
register_switch(struct switch_dev *dev, struct net_device *netdev)
{
@@ -976,6 +1038,12 @@ register_switch(struct switch_dev *dev, struct net_device *netdev)
GFP_KERNEL);
if (!dev->portbuf)
return -ENOMEM;
+ dev->portmap = kzalloc(sizeof(struct switch_portmap) * dev->ports,
+ GFP_KERNEL);
+ if (!dev->portmap) {
+ kfree(dev->portbuf);
+ return -ENOMEM;
+ }
}
swconfig_defaults_init(dev);
mutex_init(&dev->sw_mutex);
@@ -997,6 +1065,11 @@ register_switch(struct switch_dev *dev, struct net_device *netdev)
return -ENFILE;
}
+#ifdef CONFIG_OF
+ if (dev->ports)
+ of_switch_load_portmap(dev);
+#endif
+
/* fill device name */
snprintf(dev->devname, IFNAMSIZ, SWCONFIG_DEVNAME, i);
diff --git a/target/linux/generic/files/include/linux/switch.h b/target/linux/generic/files/include/linux/switch.h
index bd4fae4..b53431e 100644
--- a/target/linux/generic/files/include/linux/switch.h
+++ b/target/linux/generic/files/include/linux/switch.h
@@ -98,6 +98,7 @@ struct switch_dev_ops {
};
struct switch_dev {
+ struct device_node *of_node;
const struct switch_dev_ops *ops;
/* will be automatically filled */
char devname[IFNAMSIZ];
@@ -118,6 +119,7 @@ struct switch_dev {
struct mutex sw_mutex;
struct switch_port *portbuf;
+ struct switch_portmap *portmap;
char buf[128];
@@ -131,6 +133,11 @@ struct switch_port {
u32 flags;
};
+struct switch_portmap {
+ u32 virt;
+ const char *s;
+};
+
struct switch_val {
const struct switch_attr *attr;
int port_vlan;
diff --git a/target/linux/generic/files/include/uapi/linux/switch.h b/target/linux/generic/files/include/uapi/linux/switch.h
index 581caf1..a59b239 100644
--- a/target/linux/generic/files/include/uapi/linux/switch.h
+++ b/target/linux/generic/files/include/uapi/linux/switch.h
@@ -39,6 +39,7 @@ enum {
SWITCH_ATTR_NAME,
SWITCH_ATTR_VLANS,
SWITCH_ATTR_PORTS,
+ SWITCH_ATTR_PORTMAP,
SWITCH_ATTR_CPU_PORT,
/* attributes */
SWITCH_ATTR_OP_ID,
@@ -55,6 +56,14 @@ enum {
SWITCH_ATTR_MAX
};
+enum {
+ /* port map */
+ SWITCH_PORTMAP_PORTS,
+ SWITCH_PORTMAP_SEGMENT,
+ SWITCH_PORTMAP_VIRT,
+ SWITCH_PORTMAP_MAX
+};
+
/* commands */
enum {
SWITCH_CMD_UNSPEC,