bonding: add lacp_rate attribute netlink support
Add IFLA_BOND_AD_LACP_RATE to allow get/set of bonding parameter
lacp_rate via netlink.
Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
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 84acd144..45de873 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -43,6 +43,7 @@
[IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 },
[IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 },
[IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 },
+ [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
};
static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
@@ -252,6 +253,14 @@
if (err)
return err;
}
+ if (data[IFLA_BOND_AD_LACP_RATE]) {
+ int lacp_rate =
+ nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]);
+
+ err = bond_option_lacp_rate_set(bond, lacp_rate);
+ if (err)
+ return err;
+ }
return 0;
}
@@ -290,6 +299,7 @@
nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */
nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */
nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */
+ nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */
0;
}
@@ -395,6 +405,10 @@
packets_per_slave))
goto nla_put_failure;
+ if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE,
+ bond->params.lacp_fast))
+ 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 f8a2cd8..ad67fbf 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -656,3 +656,32 @@
return 0;
}
+
+int bond_option_lacp_rate_set(struct bonding *bond, int lacp_rate)
+{
+ if (bond->dev->flags & IFF_UP) {
+ pr_err("%s: Unable to update LACP rate because interface is up.\n",
+ bond->dev->name);
+ return -EPERM;
+ }
+
+ if (bond->params.mode != BOND_MODE_8023AD) {
+ pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n",
+ bond->dev->name);
+ return -EPERM;
+ }
+
+ if ((lacp_rate == 1) || (lacp_rate == 0)) {
+ bond->params.lacp_fast = lacp_rate;
+ bond_3ad_update_lacp_rate(bond);
+ pr_info("%s: Setting LACP rate to %s (%d).\n",
+ bond->dev->name, bond_lacp_tbl[lacp_rate].modename,
+ lacp_rate);
+ } else {
+ pr_err("%s: Ignoring invalid LACP rate value %d.\n",
+ bond->dev->name, lacp_rate);
+ return -EINVAL;
+ }
+
+ return 0;
+}
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index a0a3476f..62d33dc 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -658,41 +658,23 @@
const char *buf, size_t count)
{
struct bonding *bond = to_bond(d);
- int new_value, ret = count;
+ int new_value, ret;
+
+ new_value = bond_parse_parm(buf, bond_lacp_tbl);
+ if (new_value < 0) {
+ pr_err("%s: Ignoring invalid LACP rate value %.*s.\n",
+ bond->dev->name, (int)strlen(buf) - 1, buf);
+ return -EINVAL;
+ }
if (!rtnl_trylock())
return restart_syscall();
- if (bond->dev->flags & IFF_UP) {
- pr_err("%s: Unable to update LACP rate because interface is up.\n",
- bond->dev->name);
- ret = -EPERM;
- goto out;
- }
+ ret = bond_option_lacp_rate_set(bond, new_value);
+ if (!ret)
+ ret = count;
- if (bond->params.mode != BOND_MODE_8023AD) {
- pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n",
- bond->dev->name);
- ret = -EPERM;
- goto out;
- }
-
- new_value = bond_parse_parm(buf, bond_lacp_tbl);
-
- if ((new_value == 1) || (new_value == 0)) {
- bond->params.lacp_fast = new_value;
- bond_3ad_update_lacp_rate(bond);
- pr_info("%s: Setting LACP rate to %s (%d).\n",
- bond->dev->name, bond_lacp_tbl[new_value].modename,
- new_value);
- } else {
- pr_err("%s: Ignoring invalid LACP rate value %.*s.\n",
- bond->dev->name, (int)strlen(buf) - 1, buf);
- ret = -EINVAL;
- }
-out:
rtnl_unlock();
-
return ret;
}
static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR,
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 8e8817f..585bfef 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -464,6 +464,7 @@
int bond_option_lp_interval_set(struct bonding *bond, int min_links);
int bond_option_packets_per_slave_set(struct bonding *bond,
int packets_per_slave);
+int bond_option_lacp_rate_set(struct bonding *bond, int lacp_rate);
struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
struct net_device *bond_option_active_slave_get(struct bonding *bond);