From d1fbd3ed9366904b58b1c0c30b22d51dc793de99 Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Wed, 22 Jan 2014 14:53:35 +0100 Subject: [PATCH] bonding: convert active_slave to use the new option API This patch adds the necessary changes so active_slave would use the new bonding option API. Also some trivial/style fixes. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 4 +++- drivers/net/bonding/bond_netlink.c | 9 +++++---- drivers/net/bonding/bond_options.c | 30 +++++++++++++++++++++++------- drivers/net/bonding/bond_options.h | 3 +++ drivers/net/bonding/bond_sysfs.c | 24 ++---------------------- drivers/net/bonding/bonding.h | 1 - 6 files changed, 36 insertions(+), 35 deletions(-) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 59edf18602d9..2ca949f6e995 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3123,6 +3123,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd struct ifslave k_sinfo; struct ifslave __user *u_sinfo = NULL; struct mii_ioctl_data *mii = NULL; + struct bond_opt_value newval; struct net *net; int res = 0; @@ -3218,7 +3219,8 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd break; case BOND_CHANGE_ACTIVE_OLD: case SIOCBONDCHANGEACTIVE: - res = bond_option_active_slave_set(bond, slave_dev); + bond_opt_initstr(&newval, slave_dev->name); + res = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval); break; default: res = -EOPNOTSUPP; diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c index 2175e1926e5a..dba1f2e22371 100644 --- a/drivers/net/bonding/bond_netlink.c +++ b/drivers/net/bonding/bond_netlink.c @@ -116,16 +116,17 @@ static int bond_changelink(struct net_device *bond_dev, if (data[IFLA_BOND_ACTIVE_SLAVE]) { int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]); struct net_device *slave_dev; + char *active_slave = ""; - if (ifindex == 0) { - slave_dev = NULL; - } else { + if (ifindex != 0) { slave_dev = __dev_get_by_index(dev_net(bond_dev), ifindex); if (!slave_dev) return -ENODEV; + active_slave = slave_dev->name; } - err = bond_option_active_slave_set(bond, slave_dev); + bond_opt_initstr(&newval, active_slave); + err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval); if (err) return err; } diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c index 18b1cc0d8b80..2315104de8c0 100644 --- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -244,6 +244,16 @@ static struct bond_option bond_opts[] = { .values = bond_use_carrier_tbl, .set = bond_option_use_carrier_set }, + [BOND_OPT_ACTIVE_SLAVE] = { + .id = BOND_OPT_ACTIVE_SLAVE, + .name = "active_slave", + .desc = "Currently active slave", + .flags = BOND_OPTFLAG_RAWVAL, + .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) | + BIT(BOND_MODE_TLB) | + BIT(BOND_MODE_ALB)), + .set = bond_option_active_slave_set + }, { } }; @@ -556,10 +566,21 @@ struct net_device *bond_option_active_slave_get(struct bonding *bond) } int bond_option_active_slave_set(struct bonding *bond, - struct net_device *slave_dev) + struct bond_opt_value *newval) { + char ifname[IFNAMSIZ] = { 0, }; + struct net_device *slave_dev; int ret = 0; + sscanf(newval->string, "%15s", ifname); /* IFNAMSIZ */ + if (!strlen(ifname) || newval->string[0] == '\n') { + slave_dev = NULL; + } else { + slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname); + if (!slave_dev) + return -ENODEV; + } + if (slave_dev) { if (!netif_is_bond_slave(slave_dev)) { pr_err("Device %s is not bonding slave.\n", @@ -574,12 +595,6 @@ int bond_option_active_slave_set(struct bonding *bond, } } - if (!USES_PRIMARY(bond->params.mode)) { - pr_err("%s: Unable to change active slave; %s is in mode %d\n", - bond->dev->name, bond->dev->name, bond->params.mode); - return -EINVAL; - } - block_netpoll_tx(); write_lock_bh(&bond->curr_slave_lock); @@ -616,6 +631,7 @@ int bond_option_active_slave_set(struct bonding *bond, write_unlock_bh(&bond->curr_slave_lock); unblock_netpoll_tx(); + return ret; } diff --git a/drivers/net/bonding/bond_options.h b/drivers/net/bonding/bond_options.h index 229f5c15a1a4..1f486a7d1e14 100644 --- a/drivers/net/bonding/bond_options.h +++ b/drivers/net/bonding/bond_options.h @@ -56,6 +56,7 @@ enum { BOND_OPT_PRIMARY, BOND_OPT_PRIMARY_RESELECT, BOND_OPT_USE_CARRIER, + BOND_OPT_ACTIVE_SLAVE, BOND_OPT_LAST }; @@ -150,4 +151,6 @@ int bond_option_primary_reselect_set(struct bonding *bond, struct bond_opt_value *newval); int bond_option_use_carrier_set(struct bonding *bond, struct bond_opt_value *newval); +int bond_option_active_slave_set(struct bonding *bond, + struct bond_opt_value *newval); #endif /* _BOND_OPTIONS_H */ diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 004048240def..181a59d7241e 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -809,34 +809,14 @@ static ssize_t bonding_store_active_slave(struct device *d, struct device_attribute *attr, const char *buf, size_t count) { - int ret; struct bonding *bond = to_bond(d); - char ifname[IFNAMSIZ]; - struct net_device *dev; - - if (!rtnl_trylock()) - return restart_syscall(); - - sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ - if (!strlen(ifname) || buf[0] == '\n') { - dev = NULL; - } else { - dev = __dev_get_by_name(dev_net(bond->dev), ifname); - if (!dev) { - ret = -ENODEV; - goto out; - } - } + int ret; - ret = bond_option_active_slave_set(bond, dev); + ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ACTIVE_SLAVE, (char *)buf); if (!ret) ret = count; - out: - rtnl_unlock(); - return ret; - } static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave); diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 51f3b0ad11ab..4ac79e1dd78f 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -452,7 +452,6 @@ void bond_setup(struct net_device *bond_dev); unsigned int bond_get_num_tx_queues(void); int bond_netlink_init(void); void bond_netlink_fini(void); -int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev); int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target); int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target); int bond_option_resend_igmp_set(struct bonding *bond, int resend_igmp); -- 2.30.2