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swconfig: add API for setting port link speed 

Some switches can force link speed for a port. Let's add API that will
allow drivers to export this feature.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 48142
lede-17.01
Rafał Miłecki 2016-01-06 18:32:21 +00:00
parent a09e713299
commit 5f69279dd6
2 changed files with 50 additions and 1 deletions
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49
target/linux/generic/files/drivers/net/phy/swconfig.c
View File

@ -127,6 +127,16 @@ swconfig_get_pvid(struct switch_dev *dev, const struct switch_attr *attr,
return dev->ops->get_port_pvid(dev, val->port_vlan, &val->value.i);
}
static int
swconfig_set_link(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
{
if (!dev->ops->set_port_link)
return -EOPNOTSUPP;
return dev->ops->set_port_link(dev, val->port_vlan, val->value.link);
}
static int
swconfig_get_link(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
@ -206,7 +216,7 @@ static struct switch_attr default_port[] = {
.type = SWITCH_TYPE_LINK,
.name = "link",
.description = "Get port link information",
.set = NULL,
.set = swconfig_set_link,
.get = swconfig_get_link,
}
};
@ -282,6 +292,12 @@ static const struct nla_policy port_policy[SWITCH_PORT_ATTR_MAX+1] = {
[SWITCH_PORT_FLAG_TAGGED] = { .type = NLA_FLAG },
};
static struct nla_policy link_policy[SWITCH_LINK_ATTR_MAX] = {
[SWITCH_LINK_FLAG_DUPLEX] = { .type = NLA_FLAG },
[SWITCH_LINK_FLAG_ANEG] = { .type = NLA_FLAG },
[SWITCH_LINK_SPEED] = { .type = NLA_U32 },
};
static inline void
swconfig_lock(void)
{
@ -594,6 +610,22 @@ swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head,
return 0;
}
static int
swconfig_parse_link(struct sk_buff *msg, struct nlattr *nla,
struct switch_port_link *link)
{
struct nlattr *tb[SWITCH_LINK_ATTR_MAX + 1];
if (nla_parse_nested(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy))
return -EINVAL;
link->duplex = !!tb[SWITCH_LINK_FLAG_DUPLEX];
link->aneg = !!tb[SWITCH_LINK_FLAG_ANEG];
link->speed = nla_get_u32(tb[SWITCH_LINK_SPEED]);
return 0;
}
static int
swconfig_set_attr(struct sk_buff *skb, struct genl_info *info)
{
@ -644,6 +676,21 @@ swconfig_set_attr(struct sk_buff *skb, struct genl_info *info)
err = 0;
}
break;
case SWITCH_TYPE_LINK:
val.value.link = &dev->linkbuf;
memset(&dev->linkbuf, 0, sizeof(struct switch_port_link));
if (info->attrs[SWITCH_ATTR_OP_VALUE_LINK]) {
err = swconfig_parse_link(skb,
info->attrs[SWITCH_ATTR_OP_VALUE_LINK],
val.value.link);
if (err < 0)
goto error;
} else {
val.len = 0;
err = 0;
}
break;
default:
goto error;
}

2
target/linux/generic/files/include/linux/switch.h
View File

@ -95,6 +95,8 @@ struct switch_dev_ops {
int (*get_port_link)(struct switch_dev *dev, int port,
struct switch_port_link *link);
int (*set_port_link)(struct switch_dev *dev, int port,
struct switch_port_link *link);
int (*get_port_stats)(struct switch_dev *dev, int port,
struct switch_port_stats *stats);
};