diff options
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 105 |
1 files changed, 65 insertions, 40 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 484c9e3e5e82..f04d4f28eb1a 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4446,11 +4446,6 @@ static int bond_eth_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cm { struct bonding *bond = netdev_priv(bond_dev); struct mii_ioctl_data *mii = NULL; - const struct net_device_ops *ops; - struct net_device *real_dev; - struct hwtstamp_config cfg; - struct ifreq ifrr; - int res = 0; netdev_dbg(bond_dev, "bond_eth_ioctl: cmd=%d\n", cmd); @@ -4477,44 +4472,11 @@ static int bond_eth_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cm } break; - case SIOCSHWTSTAMP: - if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) - return -EFAULT; - - if (!(cfg.flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX)) - return -EOPNOTSUPP; - - fallthrough; - case SIOCGHWTSTAMP: - real_dev = bond_option_active_slave_get_rcu(bond); - if (!real_dev) - return -EOPNOTSUPP; - - strscpy_pad(ifrr.ifr_name, real_dev->name, IFNAMSIZ); - ifrr.ifr_ifru = ifr->ifr_ifru; - - ops = real_dev->netdev_ops; - if (netif_device_present(real_dev) && ops->ndo_eth_ioctl) { - res = ops->ndo_eth_ioctl(real_dev, &ifrr, cmd); - if (res) - return res; - - ifr->ifr_ifru = ifrr.ifr_ifru; - if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) - return -EFAULT; - - /* Set the BOND_PHC_INDEX flag to notify user space */ - cfg.flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX; - - return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? - -EFAULT : 0; - } - fallthrough; default: - res = -EOPNOTSUPP; + return -EOPNOTSUPP; } - return res; + return 0; } static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd) @@ -5688,6 +5650,67 @@ static u32 bond_mode_bcast_speed(struct slave *slave, u32 speed) return speed; } +/* Set the BOND_PHC_INDEX flag to notify user space */ +static int bond_set_phc_index_flag(struct kernel_hwtstamp_config *kernel_cfg) +{ + struct ifreq *ifr = kernel_cfg->ifr; + struct hwtstamp_config cfg; + + if (kernel_cfg->copied_to_user) { + /* Lower device has a legacy implementation */ + if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) + return -EFAULT; + + cfg.flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX; + if (copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg))) + return -EFAULT; + } else { + kernel_cfg->flags |= HWTSTAMP_FLAG_BONDED_PHC_INDEX; + } + + return 0; +} + +static int bond_hwtstamp_get(struct net_device *dev, + struct kernel_hwtstamp_config *cfg) +{ + struct bonding *bond = netdev_priv(dev); + struct net_device *real_dev; + int err; + + real_dev = bond_option_active_slave_get_rcu(bond); + if (!real_dev) + return -EOPNOTSUPP; + + err = generic_hwtstamp_get_lower(real_dev, cfg); + if (err) + return err; + + return bond_set_phc_index_flag(cfg); +} + +static int bond_hwtstamp_set(struct net_device *dev, + struct kernel_hwtstamp_config *cfg, + struct netlink_ext_ack *extack) +{ + struct bonding *bond = netdev_priv(dev); + struct net_device *real_dev; + int err; + + if (!(cfg->flags & HWTSTAMP_FLAG_BONDED_PHC_INDEX)) + return -EOPNOTSUPP; + + real_dev = bond_option_active_slave_get_rcu(bond); + if (!real_dev) + return -EOPNOTSUPP; + + err = generic_hwtstamp_set_lower(real_dev, cfg, extack); + if (err) + return err; + + return bond_set_phc_index_flag(cfg); +} + static int bond_ethtool_get_link_ksettings(struct net_device *bond_dev, struct ethtool_link_ksettings *cmd) { @@ -5836,6 +5859,8 @@ static const struct net_device_ops bond_netdev_ops = { .ndo_bpf = bond_xdp, .ndo_xdp_xmit = bond_xdp_xmit, .ndo_xdp_get_xmit_slave = bond_xdp_get_xmit_slave, + .ndo_hwtstamp_get = bond_hwtstamp_get, + .ndo_hwtstamp_set = bond_hwtstamp_set, }; static const struct device_type bond_type = { |