mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-28 13:34:38 +08:00
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>
This commit is contained in:
Petr Machata
David S. Miller
parent
a773c76cb8
commit
8748642751
@ -166,6 +166,11 @@ struct mlxsw_sp_ptp_ops {
|
||||
*/
|
||||
void (*transmitted)(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
|
||||
u8 local_port);
|
||||
|
||||
int (*hwtstamp_get)(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config);
|
||||
int (*hwtstamp_set)(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config);
|
||||
};
|
||||
|
||||
static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev,
|
||||
@ -1808,6 +1813,65 @@ mlxsw_sp_port_get_devlink_port(struct net_device *dev)
|
||||
mlxsw_sp_port->local_port);
|
||||
}
|
||||
|
||||
static int mlxsw_sp_port_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct ifreq *ifr)
|
||||
{
|
||||
struct hwtstamp_config config;
|
||||
int err;
|
||||
|
||||
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
|
||||
return -EFAULT;
|
||||
|
||||
err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port,
|
||||
&config);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mlxsw_sp_port_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct ifreq *ifr)
|
||||
{
|
||||
struct hwtstamp_config config;
|
||||
int err;
|
||||
|
||||
err = mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_get(mlxsw_sp_port,
|
||||
&config);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
if (copy_to_user(ifr->ifr_data, &config, sizeof(config)))
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void mlxsw_sp_port_ptp_clear(struct mlxsw_sp_port *mlxsw_sp_port)
|
||||
{
|
||||
struct hwtstamp_config config = {0};
|
||||
|
||||
mlxsw_sp_port->mlxsw_sp->ptp_ops->hwtstamp_set(mlxsw_sp_port, &config);
|
||||
}
|
||||
|
||||
static int
|
||||
mlxsw_sp_port_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
||||
{
|
||||
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
|
||||
|
||||
switch (cmd) {
|
||||
case SIOCSHWTSTAMP:
|
||||
return mlxsw_sp_port_hwtstamp_set(mlxsw_sp_port, ifr);
|
||||
case SIOCGHWTSTAMP:
|
||||
return mlxsw_sp_port_hwtstamp_get(mlxsw_sp_port, ifr);
|
||||
default:
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
}
|
||||
|
||||
static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
|
||||
.ndo_open = mlxsw_sp_port_open,
|
||||
.ndo_stop = mlxsw_sp_port_stop,
|
||||
@ -1823,6 +1887,7 @@ static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
|
||||
.ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
|
||||
.ndo_set_features = mlxsw_sp_set_features,
|
||||
.ndo_get_devlink_port = mlxsw_sp_port_get_devlink_port,
|
||||
.ndo_do_ioctl = mlxsw_sp_port_ioctl,
|
||||
};
|
||||
|
||||
static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
|
||||
@ -3680,6 +3745,7 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
|
||||
struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
|
||||
|
||||
cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw);
|
||||
mlxsw_sp_port_ptp_clear(mlxsw_sp_port);
|
||||
mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
|
||||
unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
|
||||
mlxsw_sp->ports[local_port] = NULL;
|
||||
@ -4479,6 +4545,8 @@ static const struct mlxsw_sp_ptp_ops mlxsw_sp1_ptp_ops = {
|
||||
.fini = mlxsw_sp1_ptp_fini,
|
||||
.receive = mlxsw_sp1_ptp_receive,
|
||||
.transmitted = mlxsw_sp1_ptp_transmitted,
|
||||
.hwtstamp_get = mlxsw_sp1_ptp_hwtstamp_get,
|
||||
.hwtstamp_set = mlxsw_sp1_ptp_hwtstamp_set,
|
||||
};
|
||||
|
||||
static const struct mlxsw_sp_ptp_ops mlxsw_sp2_ptp_ops = {
|
||||
@ -4488,6 +4556,8 @@ static const struct mlxsw_sp_ptp_ops mlxsw_sp2_ptp_ops = {
|
||||
.fini = mlxsw_sp2_ptp_fini,
|
||||
.receive = mlxsw_sp2_ptp_receive,
|
||||
.transmitted = mlxsw_sp2_ptp_transmitted,
|
||||
.hwtstamp_get = mlxsw_sp2_ptp_hwtstamp_get,
|
||||
.hwtstamp_set = mlxsw_sp2_ptp_hwtstamp_set,
|
||||
};
|
||||
|
||||
static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
#include <linux/ptp_classify.h>
|
||||
#include <linux/if_ether.h>
|
||||
#include <linux/if_vlan.h>
|
||||
#include <linux/net_tstamp.h>
|
||||
|
||||
#include "spectrum.h"
|
||||
#include "spectrum_ptp.h"
|
||||
@ -743,6 +744,15 @@ static int mlxsw_sp1_ptp_set_fifo_clr_on_trap(struct mlxsw_sp *mlxsw_sp,
|
||||
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mogcr), mogcr_pl);
|
||||
}
|
||||
|
||||
static int mlxsw_sp1_ptp_mtpppc_set(struct mlxsw_sp *mlxsw_sp,
|
||||
u16 ing_types, u16 egr_types)
|
||||
{
|
||||
char mtpppc_pl[MLXSW_REG_MTPPPC_LEN];
|
||||
|
||||
mlxsw_reg_mtpppc_pack(mtpppc_pl, ing_types, egr_types);
|
||||
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mtpppc), mtpppc_pl);
|
||||
}
|
||||
|
||||
struct mlxsw_sp_ptp_state *mlxsw_sp1_ptp_init(struct mlxsw_sp *mlxsw_sp)
|
||||
{
|
||||
struct mlxsw_sp_ptp_state *ptp_state;
|
||||
@ -803,6 +813,7 @@ void mlxsw_sp1_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state)
|
||||
struct mlxsw_sp *mlxsw_sp = ptp_state->mlxsw_sp;
|
||||
|
||||
cancel_delayed_work_sync(&ptp_state->ht_gc_dw);
|
||||
mlxsw_sp1_ptp_mtpppc_set(mlxsw_sp, 0, 0);
|
||||
mlxsw_sp1_ptp_set_fifo_clr_on_trap(mlxsw_sp, false);
|
||||
mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP1, 0);
|
||||
mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP0, 0);
|
||||
@ -810,3 +821,115 @@ void mlxsw_sp1_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state)
|
||||
&mlxsw_sp1_ptp_unmatched_free_fn, NULL);
|
||||
kfree(ptp_state);
|
||||
}
|
||||
|
||||
int mlxsw_sp1_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config)
|
||||
{
|
||||
*config = mlxsw_sp_port->ptp.hwtstamp_config;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mlxsw_sp_ptp_get_message_types(const struct hwtstamp_config *config,
|
||||
u16 *p_ing_types, u16 *p_egr_types,
|
||||
enum hwtstamp_rx_filters *p_rx_filter)
|
||||
{
|
||||
enum hwtstamp_rx_filters rx_filter = config->rx_filter;
|
||||
enum hwtstamp_tx_types tx_type = config->tx_type;
|
||||
u16 ing_types = 0x00;
|
||||
u16 egr_types = 0x00;
|
||||
|
||||
switch (tx_type) {
|
||||
case HWTSTAMP_TX_OFF:
|
||||
egr_types = 0x00;
|
||||
break;
|
||||
case HWTSTAMP_TX_ON:
|
||||
egr_types = 0xff;
|
||||
break;
|
||||
case HWTSTAMP_TX_ONESTEP_SYNC:
|
||||
return -ERANGE;
|
||||
}
|
||||
|
||||
switch (rx_filter) {
|
||||
case HWTSTAMP_FILTER_NONE:
|
||||
ing_types = 0x00;
|
||||
break;
|
||||
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
|
||||
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
|
||||
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
|
||||
case HWTSTAMP_FILTER_PTP_V2_SYNC:
|
||||
ing_types = 0x01;
|
||||
break;
|
||||
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
|
||||
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
|
||||
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
|
||||
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
|
||||
ing_types = 0x02;
|
||||
break;
|
||||
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
|
||||
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
|
||||
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
|
||||
case HWTSTAMP_FILTER_PTP_V2_EVENT:
|
||||
ing_types = 0x0f;
|
||||
break;
|
||||
case HWTSTAMP_FILTER_ALL:
|
||||
ing_types = 0xff;
|
||||
break;
|
||||
case HWTSTAMP_FILTER_SOME:
|
||||
case HWTSTAMP_FILTER_NTP_ALL:
|
||||
return -ERANGE;
|
||||
}
|
||||
|
||||
*p_ing_types = ing_types;
|
||||
*p_egr_types = egr_types;
|
||||
*p_rx_filter = rx_filter;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mlxsw_sp1_ptp_mtpppc_update(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
u16 ing_types, u16 egr_types)
|
||||
{
|
||||
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
||||
struct mlxsw_sp_port *tmp;
|
||||
int i;
|
||||
|
||||
/* MTPPPC configures timestamping globally, not per port. Find the
|
||||
* configuration that contains all configured timestamping requests.
|
||||
*/
|
||||
for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) {
|
||||
tmp = mlxsw_sp->ports[i];
|
||||
if (tmp && tmp != mlxsw_sp_port) {
|
||||
ing_types |= tmp->ptp.ing_types;
|
||||
egr_types |= tmp->ptp.egr_types;
|
||||
}
|
||||
}
|
||||
|
||||
return mlxsw_sp1_ptp_mtpppc_set(mlxsw_sp_port->mlxsw_sp,
|
||||
ing_types, egr_types);
|
||||
}
|
||||
|
||||
int mlxsw_sp1_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config)
|
||||
{
|
||||
enum hwtstamp_rx_filters rx_filter;
|
||||
u16 ing_types;
|
||||
u16 egr_types;
|
||||
int err;
|
||||
|
||||
err = mlxsw_sp_ptp_get_message_types(config, &ing_types, &egr_types,
|
||||
&rx_filter);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
err = mlxsw_sp1_ptp_mtpppc_update(mlxsw_sp_port, ing_types, egr_types);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
mlxsw_sp_port->ptp.hwtstamp_config = *config;
|
||||
mlxsw_sp_port->ptp.ing_types = ing_types;
|
||||
mlxsw_sp_port->ptp.egr_types = egr_types;
|
||||
|
||||
/* Notify the ioctl caller what we are actually timestamping. */
|
||||
config->rx_filter = rx_filter;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -40,6 +40,12 @@ void mlxsw_sp1_ptp_got_timestamp(struct mlxsw_sp *mlxsw_sp, bool ingress,
|
||||
u8 domain_number, u16 sequence_id,
|
||||
u64 timestamp);
|
||||
|
||||
int mlxsw_sp1_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config);
|
||||
|
||||
int mlxsw_sp1_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config);
|
||||
|
||||
#else
|
||||
|
||||
static inline struct mlxsw_sp_ptp_clock *
|
||||
@ -82,6 +88,20 @@ mlxsw_sp1_ptp_got_timestamp(struct mlxsw_sp *mlxsw_sp, bool ingress,
|
||||
{
|
||||
}
|
||||
|
||||
static inline int
|
||||
mlxsw_sp1_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config)
|
||||
{
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
static inline int
|
||||
mlxsw_sp1_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config)
|
||||
{
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
static inline struct mlxsw_sp_ptp_clock *
|
||||
@ -116,4 +136,18 @@ static inline void mlxsw_sp2_ptp_transmitted(struct mlxsw_sp *mlxsw_sp,
|
||||
dev_kfree_skb_any(skb);
|
||||
}
|
||||
|
||||
static inline int
|
||||
mlxsw_sp2_ptp_hwtstamp_get(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config)
|
||||
{
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
static inline int
|
||||
mlxsw_sp2_ptp_hwtstamp_set(struct mlxsw_sp_port *mlxsw_sp_port,
|
||||
struct hwtstamp_config *config)
|
||||
{
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user