From 6685987c29582afc79b7fa3998dfbf36b4295791 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Wed, 16 Jan 2019 23:06:56 +0000 Subject: [PATCH] switchdev: Add extack argument to call_switchdev_notifiers() A follow-up patch will enable vetoing of FDB entries. Make it possible to communicate details of why an FDB entry is not acceptable back to the user. Signed-off-by: Petr Machata Signed-off-by: David S. Miller --- Documentation/networking/switchdev.txt | 2 +- .../net/ethernet/mellanox/mlxsw/spectrum_router.c | 6 ++++-- .../net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 12 ++++++------ drivers/net/ethernet/rocker/rocker_main.c | 2 +- drivers/net/ethernet/rocker/rocker_ofdpa.c | 4 ++-- drivers/net/vxlan.c | 2 +- include/net/switchdev.h | 6 ++++-- net/bridge/br_switchdev.c | 2 +- net/dsa/slave.c | 2 +- net/switchdev/switchdev.c | 5 +++-- 10 files changed, 24 insertions(+), 19 deletions(-) diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt index 82236a17b5e6..f3244d87512a 100644 --- a/Documentation/networking/switchdev.txt +++ b/Documentation/networking/switchdev.txt @@ -196,7 +196,7 @@ The switch device will learn/forget source MAC address/VLAN on ingress packets and notify the switch driver of the mac/vlan/port tuples. The switch driver, in turn, will notify the bridge driver using the switchdev notifier call: - err = call_switchdev_notifiers(val, dev, info); + err = call_switchdev_notifiers(val, dev, info, extack); Where val is SWITCHDEV_FDB_ADD when learning and SWITCHDEV_FDB_DEL when forgetting, and info points to a struct switchdev_notifier_fdb_info. On diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 98e5ffd71b91..042341c7f6b9 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -7294,7 +7294,8 @@ static void mlxsw_sp_rif_vlan_fdb_del(struct mlxsw_sp_rif *rif, const char *mac) info.addr = mac; info.vid = vid; - call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, dev, &info.info); + call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, dev, &info.info, + NULL); } static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_vlan_ops = { @@ -7381,7 +7382,8 @@ static void mlxsw_sp_rif_fid_fdb_del(struct mlxsw_sp_rif *rif, const char *mac) info.addr = mac; info.vid = 0; - call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, dev, &info.info); + call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, dev, &info.info, + NULL); } static const struct mlxsw_sp_rif_ops mlxsw_sp_rif_fid_ops = { diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 0abbaa0fbf14..71aad9d4e160 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -2443,7 +2443,7 @@ static void mlxsw_sp_fdb_vxlan_call_notifiers(struct net_device *dev, ether_addr_copy(info.eth_addr, mac); info.vni = vni; info.offloaded = adding; - call_switchdev_notifiers(type, dev, &info.info); + call_switchdev_notifiers(type, dev, &info.info, NULL); } static void mlxsw_sp_fdb_nve_call_notifiers(struct net_device *dev, @@ -2468,7 +2468,7 @@ mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type, info.addr = mac; info.vid = vid; info.offloaded = offloaded; - call_switchdev_notifiers(type, dev, &info.info); + call_switchdev_notifiers(type, dev, &info.info, NULL); } static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, @@ -2819,7 +2819,7 @@ mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp, return; vxlan_fdb_info.offloaded = true; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, - &vxlan_fdb_info.info); + &vxlan_fdb_info.info, NULL); mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, vxlan_fdb_info.eth_addr, fdb_info->vid, dev, true); @@ -2832,7 +2832,7 @@ mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp, false); vxlan_fdb_info.offloaded = false; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, - &vxlan_fdb_info.info); + &vxlan_fdb_info.info, NULL); break; } } @@ -2977,7 +2977,7 @@ mlxsw_sp_switchdev_vxlan_fdb_add(struct mlxsw_sp *mlxsw_sp, } vxlan_fdb_info->offloaded = true; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, - &vxlan_fdb_info->info); + &vxlan_fdb_info->info, NULL); mlxsw_sp_fid_put(fid); return; } @@ -2998,7 +2998,7 @@ mlxsw_sp_switchdev_vxlan_fdb_add(struct mlxsw_sp *mlxsw_sp, goto err_fdb_tunnel_uc_op; vxlan_fdb_info->offloaded = true; call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, - &vxlan_fdb_info->info); + &vxlan_fdb_info->info, NULL); mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, vxlan_fdb_info->eth_addr, vid, dev, true); diff --git a/drivers/net/ethernet/rocker/rocker_main.c b/drivers/net/ethernet/rocker/rocker_main.c index 6213827e3956..62a205eba9f7 100644 --- a/drivers/net/ethernet/rocker/rocker_main.c +++ b/drivers/net/ethernet/rocker/rocker_main.c @@ -2725,7 +2725,7 @@ rocker_fdb_offload_notify(struct rocker_port *rocker_port, info.vid = recv_info->vid; info.offloaded = true; call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, - rocker_port->dev, &info.info); + rocker_port->dev, &info.info, NULL); } static void rocker_switchdev_event_work(struct work_struct *work) diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c index 6473cc68c2d5..bea7895930f6 100644 --- a/drivers/net/ethernet/rocker/rocker_ofdpa.c +++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c @@ -1833,10 +1833,10 @@ static void ofdpa_port_fdb_learn_work(struct work_struct *work) rtnl_lock(); if (learned && removing) call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, - lw->ofdpa_port->dev, &info.info); + lw->ofdpa_port->dev, &info.info, NULL); else if (learned && !removing) call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE, - lw->ofdpa_port->dev, &info.info); + lw->ofdpa_port->dev, &info.info, NULL); rtnl_unlock(); kfree(work); diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index a9e90159bb61..ef45c3c925be 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -393,7 +393,7 @@ static int vxlan_fdb_switchdev_call_notifiers(struct vxlan_dev *vxlan, : SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE; vxlan_fdb_switchdev_notifier_info(vxlan, fdb, rd, NULL, &info); ret = call_switchdev_notifiers(notifier_type, vxlan->dev, - &info.info); + &info.info, extack); return notifier_to_errno(ret); } diff --git a/include/net/switchdev.h b/include/net/switchdev.h index a7fdab5ee6c3..63843ae5dc81 100644 --- a/include/net/switchdev.h +++ b/include/net/switchdev.h @@ -195,7 +195,8 @@ int switchdev_port_obj_del(struct net_device *dev, int register_switchdev_notifier(struct notifier_block *nb); int unregister_switchdev_notifier(struct notifier_block *nb); int call_switchdev_notifiers(unsigned long val, struct net_device *dev, - struct switchdev_notifier_info *info); + struct switchdev_notifier_info *info, + struct netlink_ext_ack *extack); int register_switchdev_blocking_notifier(struct notifier_block *nb); int unregister_switchdev_blocking_notifier(struct notifier_block *nb); @@ -267,7 +268,8 @@ static inline int unregister_switchdev_notifier(struct notifier_block *nb) static inline int call_switchdev_notifiers(unsigned long val, struct net_device *dev, - struct switchdev_notifier_info *info) + struct switchdev_notifier_info *info, + struct netlink_ext_ack *extack) { return NOTIFY_DONE; } diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c index 035ff59d9cbd..4d2b9eb7604a 100644 --- a/net/bridge/br_switchdev.c +++ b/net/bridge/br_switchdev.c @@ -113,7 +113,7 @@ br_switchdev_fdb_call_notifiers(bool adding, const unsigned char *mac, info.added_by_user = added_by_user; info.offloaded = offloaded; notifier_type = adding ? SWITCHDEV_FDB_ADD_TO_DEVICE : SWITCHDEV_FDB_DEL_TO_DEVICE; - call_switchdev_notifiers(notifier_type, dev, &info.info); + call_switchdev_notifiers(notifier_type, dev, &info.info, NULL); } void diff --git a/net/dsa/slave.c b/net/dsa/slave.c index d5680a98a7f0..91de3a663226 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -1451,7 +1451,7 @@ static void dsa_slave_switchdev_event_work(struct work_struct *work) } fdb_info->offloaded = true; call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, - &fdb_info->info); + &fdb_info->info, NULL); break; case SWITCHDEV_FDB_DEL_TO_DEVICE: diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c index 5df9d1138ac9..cd78253de31d 100644 --- a/net/switchdev/switchdev.c +++ b/net/switchdev/switchdev.c @@ -556,10 +556,11 @@ EXPORT_SYMBOL_GPL(unregister_switchdev_notifier); * Call all network notifier blocks. */ int call_switchdev_notifiers(unsigned long val, struct net_device *dev, - struct switchdev_notifier_info *info) + struct switchdev_notifier_info *info, + struct netlink_ext_ack *extack) { info->dev = dev; - info->extack = NULL; + info->extack = extack; return atomic_notifier_call_chain(&switchdev_notif_chain, val, info); } EXPORT_SYMBOL_GPL(call_switchdev_notifiers); -- 2.30.2