mlxsw: spectrum: PTP: Support SIOCGHWTSTAMP, SIOCSHWTSTAMP ioctls
The SIOCSHWTSTAMP ioctl configures HW timestamping on a given port. Dispatch the ioctls to per-chip handler (which add to ptp_ops). Find which PTP messages need to be timestamped and configure MTPPPC accordingly. The SIOCGHWTSTAMP ioctl is getter for the current configuration. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>alistair/sunxi64-5.4-dsi
Petr Machata
David S. Miller
parent
a773c76cb8
commit
8748642751
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@ -166,6 +166,11 @@ struct mlxsw_sp_ptp_ops {
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*/
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void (*transmitted)(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
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u8 local_port);
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int (*hwtstamp_get)(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config);
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int (*hwtstamp_set)(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config);
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};
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static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev,
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@ -1808,6 +1813,65 @@ mlxsw_sp_port_get_devlink_port(struct net_device *dev)
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mlxsw_sp_port->local_port);
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}
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static int mlxsw_sp_port_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
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struct ifreq *ifr)
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{
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struct hwtstamp_config config;
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int err;
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if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
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return -EFAULT;
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err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port,
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&config);
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if (err)
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return err;
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if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
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return -EFAULT;
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return 0;
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}
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static int mlxsw_sp_port_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
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struct ifreq *ifr)
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{
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struct hwtstamp_config config;
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int err;
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err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_get(mlxsw_sp_port,
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&config);
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if (err)
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return err;
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if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
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return -EFAULT;
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return 0;
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}
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static inline void mlxsw_sp_port_ptp_clear(struct mlxsw_sp_port *mlxsw_sp_port)
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{
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struct hwtstamp_config config = {0};
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mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port, &config);
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}
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static int
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mlxsw_sp_port_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
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{
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struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
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switch (cmd) {
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case SIOCSHWTSTAMP:
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return mlxsw_sp_port_hwtstamp_set(mlxsw_sp_port, ifr);
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case SIOCGHWTSTAMP:
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return mlxsw_sp_port_hwtstamp_get(mlxsw_sp_port, ifr);
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default:
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return -EOPNOTSUPP;
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}
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}
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static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
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.ndo_open = mlxsw_sp_port_open,
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.ndo_stop = mlxsw_sp_port_stop,
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@ -1823,6 +1887,7 @@ static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
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.ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
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.ndo_set_features = mlxsw_sp_set_features,
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.ndo_get_devlink_port = mlxsw_sp_port_get_devlink_port,
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.ndo_do_ioctl = mlxsw_sp_port_ioctl,
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};
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static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
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@ -3680,6 +3745,7 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
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struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
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cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw);
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mlxsw_sp_port_ptp_clear(mlxsw_sp_port);
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mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
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unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
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mlxsw_sp->ports[local_port] = NULL;
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@ -4479,6 +4545,8 @@ static const struct mlxsw_sp_ptp_ops mlxsw_sp1_ptp_ops = {
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.fini = mlxsw_sp1_ptp_fini,
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.receive = mlxsw_sp1_ptp_receive,
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.transmitted = mlxsw_sp1_ptp_transmitted,
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.hwtstamp_get = mlxsw_sp1_ptp_hwtstamp_get,
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.hwtstamp_set = mlxsw_sp1_ptp_hwtstamp_set,
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};
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static const struct mlxsw_sp_ptp_ops mlxsw_sp2_ptp_ops = {
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@ -4488,6 +4556,8 @@ static const struct mlxsw_sp_ptp_ops mlxsw_sp2_ptp_ops = {
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.fini = mlxsw_sp2_ptp_fini,
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.receive = mlxsw_sp2_ptp_receive,
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.transmitted = mlxsw_sp2_ptp_transmitted,
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.hwtstamp_get = mlxsw_sp2_ptp_hwtstamp_get,
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.hwtstamp_set = mlxsw_sp2_ptp_hwtstamp_set,
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};
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static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
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@ -10,6 +10,7 @@
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#include <linux/ptp_classify.h>
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/net_tstamp.h>
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#include "spectrum.h"
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#include "spectrum_ptp.h"
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@ -743,6 +744,15 @@ static int mlxsw_sp1_ptp_set_fifo_clr_on_trap(struct mlxsw_sp *mlxsw_sp,
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return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mogcr), mogcr_pl);
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}
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static int mlxsw_sp1_ptp_mtpppc_set(struct mlxsw_sp *mlxsw_sp,
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u16 ing_types, u16 egr_types)
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{
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char mtpppc_pl[MLXSW_REG_MTPPPC_LEN];
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mlxsw_reg_mtpppc_pack(mtpppc_pl, ing_types, egr_types);
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return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mtpppc), mtpppc_pl);
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}
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struct mlxsw_sp_ptp_state *mlxsw_sp1_ptp_init(struct mlxsw_sp *mlxsw_sp)
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{
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struct mlxsw_sp_ptp_state *ptp_state;
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@ -803,6 +813,7 @@ void mlxsw_sp1_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state)
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struct mlxsw_sp *mlxsw_sp = ptp_state->mlxsw_sp;
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cancel_delayed_work_sync(&ptp_state->ht_gc_dw);
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mlxsw_sp1_ptp_mtpppc_set(mlxsw_sp, 0, 0);
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mlxsw_sp1_ptp_set_fifo_clr_on_trap(mlxsw_sp, false);
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mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP1, 0);
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mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP0, 0);
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@ -810,3 +821,115 @@ void mlxsw_sp1_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state)
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&mlxsw_sp1_ptp_unmatched_free_fn, NULL);
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kfree(ptp_state);
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}
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int mlxsw_sp1_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config)
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{
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*config = mlxsw_sp_port->ptp.hwtstamp_config;
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return 0;
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}
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static int mlxsw_sp_ptp_get_message_types(const struct hwtstamp_config *config,
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u16 *p_ing_types, u16 *p_egr_types,
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enum hwtstamp_rx_filters *p_rx_filter)
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{
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enum hwtstamp_rx_filters rx_filter = config->rx_filter;
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enum hwtstamp_tx_types tx_type = config->tx_type;
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u16 ing_types = 0x00;
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u16 egr_types = 0x00;
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switch (tx_type) {
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case HWTSTAMP_TX_OFF:
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egr_types = 0x00;
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break;
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case HWTSTAMP_TX_ON:
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egr_types = 0xff;
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break;
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case HWTSTAMP_TX_ONESTEP_SYNC:
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return -ERANGE;
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}
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switch (rx_filter) {
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case HWTSTAMP_FILTER_NONE:
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ing_types = 0x00;
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break;
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case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
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case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
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case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
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case HWTSTAMP_FILTER_PTP_V2_SYNC:
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ing_types = 0x01;
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break;
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case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
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case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
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case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
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case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
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ing_types = 0x02;
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break;
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case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
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case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
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case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
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case HWTSTAMP_FILTER_PTP_V2_EVENT:
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ing_types = 0x0f;
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break;
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case HWTSTAMP_FILTER_ALL:
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ing_types = 0xff;
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break;
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case HWTSTAMP_FILTER_SOME:
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case HWTSTAMP_FILTER_NTP_ALL:
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return -ERANGE;
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}
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*p_ing_types = ing_types;
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*p_egr_types = egr_types;
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*p_rx_filter = rx_filter;
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return 0;
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}
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static int mlxsw_sp1_ptp_mtpppc_update(struct mlxsw_sp_port *mlxsw_sp_port,
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u16 ing_types, u16 egr_types)
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{
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struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
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struct mlxsw_sp_port *tmp;
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int i;
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/* MTPPPC configures timestamping globally, not per port. Find the
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* configuration that contains all configured timestamping requests.
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*/
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for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) {
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tmp = mlxsw_sp->ports[i];
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if (tmp && tmp != mlxsw_sp_port) {
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ing_types |= tmp->ptp.ing_types;
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egr_types |= tmp->ptp.egr_types;
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}
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}
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return mlxsw_sp1_ptp_mtpppc_set(mlxsw_sp_port->mlxsw_sp,
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ing_types, egr_types);
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}
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int mlxsw_sp1_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config)
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{
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enum hwtstamp_rx_filters rx_filter;
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u16 ing_types;
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u16 egr_types;
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int err;
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err = mlxsw_sp_ptp_get_message_types(config, &ing_types, &egr_types,
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&rx_filter);
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if (err)
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return err;
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err = mlxsw_sp1_ptp_mtpppc_update(mlxsw_sp_port, ing_types, egr_types);
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if (err)
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return err;
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mlxsw_sp_port->ptp.hwtstamp_config = *config;
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mlxsw_sp_port->ptp.ing_types = ing_types;
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mlxsw_sp_port->ptp.egr_types = egr_types;
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/* Notify the ioctl caller what we are actually timestamping. */
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config->rx_filter = rx_filter;
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return 0;
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}
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@ -40,6 +40,12 @@ void mlxsw_sp1_ptp_got_timestamp(struct mlxsw_sp *mlxsw_sp, bool ingress,
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u8 domain_number, u16 sequence_id,
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u64 timestamp);
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int mlxsw_sp1_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config);
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int mlxsw_sp1_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config);
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#else
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static inline struct mlxsw_sp_ptp_clock *
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@ -82,6 +88,20 @@ mlxsw_sp1_ptp_got_timestamp(struct mlxsw_sp *mlxsw_sp, bool ingress,
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{
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}
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static inline int
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mlxsw_sp1_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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mlxsw_sp1_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config)
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{
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return -EOPNOTSUPP;
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}
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#endif
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static inline struct mlxsw_sp_ptp_clock *
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@ -116,4 +136,18 @@ static inline void mlxsw_sp2_ptp_transmitted(struct mlxsw_sp *mlxsw_sp,
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dev_kfree_skb_any(skb);
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}
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static inline int
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mlxsw_sp2_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config)
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{
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return -EOPNOTSUPP;
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}
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static inline int
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mlxsw_sp2_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
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struct hwtstamp_config *config)
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{
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return -EOPNOTSUPP;
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}
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#endif
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