diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 113 |
1 files changed, 76 insertions, 37 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index c3881c902756..1f3b12e8dfb4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -66,7 +66,8 @@ static int mlxsw_sp_port_attr_get(struct net_device *dev, case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: attr->u.brport_flags = (mlxsw_sp_port->learning ? BR_LEARNING : 0) | - (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0); + (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) | + (mlxsw_sp_port->uc_flood ? BR_FLOOD : 0); break; default: return -EOPNOTSUPP; @@ -123,15 +124,89 @@ static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state); } +static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, + u16 fid_begin, u16 fid_end, bool set, + bool only_uc) +{ + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; + u16 range = fid_end - fid_begin + 1; + char *sftr_pl; + int err; + + sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL); + if (!sftr_pl) + return -ENOMEM; + + mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, fid_begin, + MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST, range, + mlxsw_sp_port->local_port, set); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl); + if (err) + goto buffer_out; + + /* Flooding control allows one to decide whether a given port will + * flood unicast traffic for which there is no FDB entry. + */ + if (only_uc) + goto buffer_out; + + mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, fid_begin, + MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST, range, + mlxsw_sp_port->local_port, set); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl); + +buffer_out: + kfree(sftr_pl); + return err; +} + +static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, + bool set) +{ + struct net_device *dev = mlxsw_sp_port->dev; + u16 vid, last_visited_vid; + int err; + + for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { + err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set, + true); + if (err) { + last_visited_vid = vid; + goto err_port_flood_set; + } + } + + return 0; + +err_port_flood_set: + for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid) + __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true); + netdev_err(dev, "Failed to configure unicast flooding\n"); + return err; +} + static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_trans *trans, unsigned long brport_flags) { + unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0; + bool set; + int err; + if (switchdev_trans_ph_prepare(trans)) return 0; + if ((uc_flood ^ brport_flags) & BR_FLOOD) { + set = mlxsw_sp_port->uc_flood ? false : true; + err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port, set); + if (err) + return err; + } + + mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0; mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0; mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0; + return 0; } @@ -247,42 +322,6 @@ static int mlxsw_sp_port_fid_unmap(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, fid, fid); } -static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, - u16 fid_begin, u16 fid_end, bool set, - bool only_uc) -{ - struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; - u16 range = fid_end - fid_begin + 1; - char *sftr_pl; - int err; - - sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL); - if (!sftr_pl) - return -ENOMEM; - - mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, fid_begin, - MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST, range, - mlxsw_sp_port->local_port, set); - err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl); - if (err) - goto buffer_out; - - /* Flooding control allows one to decide whether a given port will - * flood unicast traffic for which there is no FDB entry. - */ - if (only_uc) - goto buffer_out; - - mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, fid_begin, - MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST, range, - mlxsw_sp_port->local_port, set); - err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl); - -buffer_out: - kfree(sftr_pl); - return err; -} - static int mlxsw_sp_port_add_vids(struct net_device *dev, u16 vid_begin, u16 vid_end) { |