bonding: add updelay netlink support
Add IFLA_BOND_UPDELAY to allow get/set of bonding parameter
updelay via netlink.
Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index 28a88be..086cf4f 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -25,6 +25,7 @@
[IFLA_BOND_MODE] = { .type = NLA_U8 },
[IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 },
[IFLA_BOND_MIIMON] = { .type = NLA_U32 },
+ [IFLA_BOND_UPDELAY] = { .type = NLA_U32 },
};
static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
@@ -77,6 +78,13 @@
if (err)
return err;
}
+ if (data[IFLA_BOND_UPDELAY]) {
+ int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]);
+
+ err = bond_option_updelay_set(bond, updelay);
+ if (err)
+ return err;
+ }
return 0;
}
@@ -97,6 +105,7 @@
return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */
nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */
nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */
+ nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */
0;
}
@@ -116,6 +125,10 @@
if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon))
goto nla_put_failure;
+ if (nla_put_u32(skb, IFLA_BOND_UPDELAY,
+ bond->params.updelay * bond->params.miimon))
+ goto nla_put_failure;
+
return 0;
nla_put_failure:
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 8ae42d3..ae94b84 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -187,3 +187,32 @@
}
return 0;
}
+
+int bond_option_updelay_set(struct bonding *bond, int updelay)
+{
+ if (!(bond->params.miimon)) {
+ pr_err("%s: Unable to set up delay as MII monitoring is disabled\n",
+ bond->dev->name);
+ return -EPERM;
+ }
+
+ if (updelay < 0) {
+ pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n",
+ bond->dev->name, updelay, 0, INT_MAX);
+ return -EINVAL;
+ } else {
+ if ((updelay % bond->params.miimon) != 0) {
+ pr_warn("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n",
+ bond->dev->name, updelay,
+ bond->params.miimon,
+ (updelay / bond->params.miimon) *
+ bond->params.miimon);
+ }
+ bond->params.updelay = updelay / bond->params.miimon;
+ pr_info("%s: Setting up delay to %d.\n",
+ bond->dev->name,
+ bond->params.updelay * bond->params.miimon);
+ }
+
+ return 0;
+}
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index d6d6fc7..4dcbec4 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -747,44 +747,22 @@
struct device_attribute *attr,
const char *buf, size_t count)
{
- int new_value, ret = count;
+ int new_value, ret;
struct bonding *bond = to_bond(d);
- if (!rtnl_trylock())
- return restart_syscall();
- if (!(bond->params.miimon)) {
- pr_err("%s: Unable to set up delay as MII monitoring is disabled\n",
- bond->dev->name);
- ret = -EPERM;
- goto out;
- }
-
if (sscanf(buf, "%d", &new_value) != 1) {
pr_err("%s: no up delay value specified.\n",
- bond->dev->name);
- ret = -EINVAL;
- goto out;
- }
- if (new_value < 0) {
- pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n",
- bond->dev->name, new_value, 0, INT_MAX);
- ret = -EINVAL;
- goto out;
- } else {
- if ((new_value % bond->params.miimon) != 0) {
- pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n",
- bond->dev->name, new_value,
- bond->params.miimon,
- (new_value / bond->params.miimon) *
- bond->params.miimon);
- }
- bond->params.updelay = new_value / bond->params.miimon;
- pr_info("%s: Setting up delay to %d.\n",
- bond->dev->name,
- bond->params.updelay * bond->params.miimon);
+ bond->dev->name);
+ return -EINVAL;
}
-out:
+ if (!rtnl_trylock())
+ return restart_syscall();
+
+ ret = bond_option_updelay_set(bond, new_value);
+ if (!ret)
+ ret = count;
+
rtnl_unlock();
return ret;
}
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index b146479..8a91f71 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -440,6 +440,7 @@
int bond_option_mode_set(struct bonding *bond, int mode);
int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev);
int bond_option_miimon_set(struct bonding *bond, int miimon);
+int bond_option_updelay_set(struct bonding *bond, int updelay);
struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
struct net_device *bond_option_active_slave_get(struct bonding *bond);
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 739b2db..7588c81 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -332,6 +332,7 @@
IFLA_BOND_MODE,
IFLA_BOND_ACTIVE_SLAVE,
IFLA_BOND_MIIMON,
+ IFLA_BOND_UPDELAY,
__IFLA_BOND_MAX,
};