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Message-ID: <20131218053016.13529.63686.stgit@monster-03.cumulusnetworks.com>
Date: Tue, 17 Dec 2013 21:30:16 -0800
From: Scott Feldman <sfeldma@...ulusnetworks.com>
To: vfalico@...hat.com, fubar@...ibm.com, andy@...yhouse.net
Cc: netdev@...r.kernel.org, roopa@...ulusnetworks.com,
shm@...ulusnetworks.com
Subject: [PATCH net-next 2/5] bonding: add all_slaves_active attribute netlink
support
Add IFLA_BOND_ALL_SLAVES_ACTIVE to allow get/set of bonding parameter
all_slaves_active via netlink.
Signed-off-by: Scott Feldman <sfeldma@...ulusnetworks.com>
---
drivers/net/bonding/bond_netlink.c | 15 +++++++++++++++
drivers/net/bonding/bond_options.c | 29 +++++++++++++++++++++++++++++
drivers/net/bonding/bond_sysfs.c | 34 +++++++---------------------------
drivers/net/bonding/bonding.h | 2 ++
include/uapi/linux/if_link.h | 1 +
5 files changed, 54 insertions(+), 27 deletions(-)
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index 4a79b01..ebc600f 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -38,6 +38,7 @@ static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
[IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 },
[IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 },
[IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 },
+ [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 },
};
static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
@@ -213,6 +214,15 @@ static int bond_changelink(struct net_device *bond_dev,
if (err)
return err;
}
+ if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) {
+ int all_slaves_active =
+ nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]);
+
+ err = bond_option_all_slaves_active_set(bond,
+ all_slaves_active);
+ if (err)
+ return err;
+ }
return 0;
}
@@ -247,6 +257,7 @@ static size_t bond_get_size(const struct net_device *bond_dev)
nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */
nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */
nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */
+ nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */
0;
}
@@ -331,6 +342,10 @@ static int bond_fill_info(struct sk_buff *skb,
bond->params.num_peer_notif))
goto nla_put_failure;
+ if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE,
+ bond->params.all_slaves_active))
+ 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 01a9669..cbd8322 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -582,3 +582,32 @@ int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif)
bond->params.num_peer_notif = num_peer_notif;
return 0;
}
+
+int bond_option_all_slaves_active_set(struct bonding *bond,
+ int all_slaves_active)
+{
+ struct list_head *iter;
+ struct slave *slave;
+
+ if (all_slaves_active == bond->params.all_slaves_active)
+ return 0;
+
+ if ((all_slaves_active == 0) || (all_slaves_active == 1)) {
+ bond->params.all_slaves_active = all_slaves_active;
+ } else {
+ pr_info("%s: Ignoring invalid all_slaves_active value %d.\n",
+ bond->dev->name, all_slaves_active);
+ return -EINVAL;
+ }
+
+ bond_for_each_slave(bond, slave, iter) {
+ if (!bond_is_active_slave(slave)) {
+ if (all_slaves_active)
+ slave->inactive = 0;
+ else
+ slave->inactive = 1;
+ }
+ }
+
+ return 0;
+}
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 7efa33a..9a37125 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1290,41 +1290,21 @@ static ssize_t bonding_store_slaves_active(struct device *d,
const char *buf, size_t count)
{
struct bonding *bond = to_bond(d);
- int new_value, ret = count;
- struct list_head *iter;
- struct slave *slave;
-
- if (!rtnl_trylock())
- return restart_syscall();
+ int new_value, ret;
if (sscanf(buf, "%d", &new_value) != 1) {
pr_err("%s: no all_slaves_active value specified.\n",
bond->dev->name);
- ret = -EINVAL;
- goto out;
+ return -EINVAL;
}
- if (new_value == bond->params.all_slaves_active)
- goto out;
+ if (!rtnl_trylock())
+ return restart_syscall();
- if ((new_value == 0) || (new_value == 1)) {
- bond->params.all_slaves_active = new_value;
- } else {
- pr_info("%s: Ignoring invalid all_slaves_active value %d.\n",
- bond->dev->name, new_value);
- ret = -EINVAL;
- goto out;
- }
+ ret = bond_option_all_slaves_active_set(bond, new_value);
+ if (!ret)
+ ret = count;
- bond_for_each_slave(bond, slave, iter) {
- if (!bond_is_active_slave(slave)) {
- if (new_value)
- slave->inactive = 0;
- else
- slave->inactive = 1;
- }
- }
-out:
rtnl_unlock();
return ret;
}
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 73538b7..3701e7d 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -462,6 +462,8 @@ int bond_option_xmit_hash_policy_set(struct bonding *bond,
int xmit_hash_policy);
int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp);
int bond_option_num_peer_notif_set(struct bonding *bond, int num_peer_notif);
+int bond_option_all_slaves_active_set(struct bonding *bond,
+ int all_slaves_active);
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 bfe3d3b..93e9c1b 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -345,6 +345,7 @@ enum {
IFLA_BOND_XMIT_HASH_POLICY,
IFLA_BOND_RESEND_IGMP,
IFLA_BOND_NUM_PEER_NOTIF,
+ IFLA_BOND_ALL_SLAVES_ACTIVE,
__IFLA_BOND_MAX,
};
--
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