From: Jiri Pirko Date: Thu, 3 Dec 2015 11:12:29 +0000 (+0100) Subject: mlxsw: spectrum: Implement FDB add/remove/dump for LAG X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=8a1ab5d766396aad0e60cc8796646a1171b419c8;p=openwrt%2Fstaging%2Fblogic.git mlxsw: spectrum: Implement FDB add/remove/dump for LAG Implement FDB offloading for lagged ports, including learning LAG FDB entries, adding/removing static FDB entries and dumping existing LAG FDB entries. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index f21e23983a1a..406dab2f6b17 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -490,32 +490,56 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, untagged_flag, pvid_flag); } -static int mlxsw_sp_port_fdb_op(struct mlxsw_sp_port *mlxsw_sp_port, - const char *mac, u16 vid, bool adding, - bool dynamic) +static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic) { - enum mlxsw_reg_sfd_rec_policy policy; - enum mlxsw_reg_sfd_op op; + return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS : + MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY; +} + +static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding) +{ + return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT : + MLXSW_REG_SFD_OP_WRITE_REMOVE; +} + +static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp_port *mlxsw_sp_port, + const char *mac, u16 vid, bool adding, + bool dynamic) +{ + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char *sfd_pl; int err; - if (!vid) - vid = mlxsw_sp_port->pvid; - sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); if (!sfd_pl) return -ENOMEM; - policy = dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS : - MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY; - op = adding ? MLXSW_REG_SFD_OP_WRITE_EDIT : - MLXSW_REG_SFD_OP_WRITE_REMOVE; - mlxsw_reg_sfd_pack(sfd_pl, op, 0); - mlxsw_reg_sfd_uc_pack(sfd_pl, 0, policy, + mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); + mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), mac, vid, MLXSW_REG_SFD_REC_ACTION_NOP, mlxsw_sp_port->local_port); - err = mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(sfd), - sfd_pl); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); + kfree(sfd_pl); + + return err; +} + +static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id, + const char *mac, u16 vid, bool adding, + bool dynamic) +{ + char *sfd_pl; + int err; + + sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); + if (!sfd_pl) + return -ENOMEM; + + mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); + mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), + mac, vid, MLXSW_REG_SFD_REC_ACTION_NOP, + lag_id); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); kfree(sfd_pl); return err; @@ -526,11 +550,21 @@ mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port, const struct switchdev_obj_port_fdb *fdb, struct switchdev_trans *trans) { + u16 vid = fdb->vid; + if (switchdev_trans_ph_prepare(trans)) return 0; - return mlxsw_sp_port_fdb_op(mlxsw_sp_port, fdb->addr, fdb->vid, - true, false); + if (!vid) + vid = mlxsw_sp_port->pvid; + + if (!mlxsw_sp_port->lagged) + return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, + fdb->addr, vid, true, false); + else + return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp, + mlxsw_sp_port->lag_id, + fdb->addr, vid, true, false); } static int mlxsw_sp_port_obj_add(struct net_device *dev, @@ -645,8 +679,15 @@ static int mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port, const struct switchdev_obj_port_fdb *fdb) { - return mlxsw_sp_port_fdb_op(mlxsw_sp_port, fdb->addr, fdb->vid, - false, false); + if (!mlxsw_sp_port->lagged) + return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, + fdb->addr, fdb->vid, + false, false); + else + return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp, + mlxsw_sp_port->lag_id, + fdb->addr, fdb->vid, + false, false); } static int mlxsw_sp_port_obj_del(struct net_device *dev, @@ -672,14 +713,30 @@ static int mlxsw_sp_port_obj_del(struct net_device *dev, return err; } +static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp, + u16 lag_id) +{ + struct mlxsw_sp_port *mlxsw_sp_port; + int i; + + for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) { + mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); + if (mlxsw_sp_port) + return mlxsw_sp_port; + } + return NULL; +} + static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port, struct switchdev_obj_port_fdb *fdb, switchdev_obj_dump_cb_t *cb) { + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char *sfd_pl; char mac[ETH_ALEN]; u16 vid; u8 local_port; + u16 lag_id; u8 num_rec; int stored_err = 0; int i; @@ -692,8 +749,7 @@ static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port, mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0); do { mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT); - err = mlxsw_reg_query(mlxsw_sp_port->mlxsw_sp->core, - MLXSW_REG(sfd), sfd_pl); + err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); if (err) goto out; @@ -718,6 +774,20 @@ static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port, if (err) stored_err = err; } + break; + case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG: + mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i, + mac, &vid, &lag_id); + if (mlxsw_sp_port == + mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id)) { + ether_addr_copy(fdb->addr, mac); + fdb->ndm_state = NUD_REACHABLE; + fdb->vid = vid; + err = cb(&fdb->obj); + if (err) + stored_err = err; + } + break; } } } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT); @@ -779,6 +849,21 @@ static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = { .switchdev_port_obj_dump = mlxsw_sp_port_obj_dump, }; +static void mlxsw_sp_fdb_call_notifiers(bool learning, bool learning_sync, + bool adding, char *mac, u16 vid, + struct net_device *dev) +{ + struct switchdev_notifier_fdb_info info; + unsigned long notifier_type; + + if (learning && learning_sync) { + info.addr = mac; + info.vid = vid; + notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL; + call_switchdev_notifiers(notifier_type, dev, &info.info); + } +} + static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, char *sfn_pl, int rec_index, bool adding) @@ -796,24 +881,49 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, return; } - err = mlxsw_sp_port_fdb_op(mlxsw_sp_port, mac, vid, - adding && mlxsw_sp_port->learning, true); + err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, mac, vid, + adding && mlxsw_sp_port->learning, true); if (err) { if (net_ratelimit()) netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n"); return; } - if (mlxsw_sp_port->learning && mlxsw_sp_port->learning_sync) { - struct switchdev_notifier_fdb_info info; - unsigned long notifier_type; + mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, + mlxsw_sp_port->learning_sync, + adding, mac, vid, mlxsw_sp_port->dev); +} - info.addr = mac; - info.vid = vid; - notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL; - call_switchdev_notifiers(notifier_type, mlxsw_sp_port->dev, - &info.info); +static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, + char *sfn_pl, int rec_index, + bool adding) +{ + struct mlxsw_sp_port *mlxsw_sp_port; + char mac[ETH_ALEN]; + u16 lag_id; + u16 vid; + int err; + + mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &vid, &lag_id); + mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id); + if (!mlxsw_sp_port) { + dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n"); + return; } + + err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, vid, + adding && mlxsw_sp_port->learning, + true); + if (err) { + if (net_ratelimit()) + netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n"); + return; + } + + mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning, + mlxsw_sp_port->learning_sync, + adding, mac, vid, + mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev); } static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, @@ -828,6 +938,14 @@ static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, rec_index, false); break; + case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG: + mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, + rec_index, true); + break; + case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG: + mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, + rec_index, false); + break; } }