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net: Convert PHYs hwtstamp callback to use kernel_hwtstamp_config 

The PHYs hwtstamp callback are still getting the timestamp config from
ifreq and using copy_from/to_user.
Get rid of these functions by using timestamp configuration in parameter.
This also allow to move on to kernel_hwtstamp_config and be similar to
net devices using the new ndo_hwstamp_get/set.

This adds the possibility to manipulate the timestamp configuration
from the kernel which was not possible with the copy_from/to_user.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kory Maincent 2023-11-14 12:28:29 +01:00 committed by David S. Miller
parent 18de1e517e
commit 446e230582
9 changed files with 82 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/phy/bcm-phy-ptp.c
View File

@ -782,16 +782,13 @@ out:
}
static int bcm_ptp_hwtstamp(struct mii_timestamper *mii_ts,
struct ifreq *ifr)
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
struct bcm_ptp_private *priv = mii2priv(mii_ts);
struct hwtstamp_config cfg;
u16 mode, ctrl;
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
switch (cfg.rx_filter) {
switch (cfg->rx_filter) {
case HWTSTAMP_FILTER_NONE:
priv->hwts_rx = false;
break;
@ -804,14 +801,14 @@ static int bcm_ptp_hwtstamp(struct mii_timestamper *mii_ts,
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
priv->hwts_rx = true;
break;
default:
return -ERANGE;
}
priv->tx_type = cfg.tx_type;
priv->tx_type = cfg->tx_type;
ctrl = priv->hwts_rx ? SLICE_RX_EN : 0;
ctrl |= priv->tx_type != HWTSTAMP_TX_OFF ? SLICE_TX_EN : 0;
@ -840,7 +837,7 @@ static int bcm_ptp_hwtstamp(struct mii_timestamper *mii_ts,
/* purge existing data */
skb_queue_purge(&priv->tx_queue);
return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
return 0;
}
static int bcm_ptp_ts_info(struct mii_timestamper *mii_ts,

24
drivers/net/phy/dp83640.c
View File

@ -1207,22 +1207,20 @@ static irqreturn_t dp83640_handle_interrupt(struct phy_device *phydev)
return IRQ_HANDLED;
}
static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
static int dp83640_hwtstamp(struct mii_timestamper *mii_ts,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
struct dp83640_private *dp83640 =
container_of(mii_ts, struct dp83640_private, mii_ts);
struct hwtstamp_config cfg;
u16 txcfg0, rxcfg0;
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.tx_type < 0 || cfg.tx_type > HWTSTAMP_TX_ONESTEP_SYNC)
if (cfg->tx_type < 0 || cfg->tx_type > HWTSTAMP_TX_ONESTEP_SYNC)
return -ERANGE;
dp83640->hwts_tx_en = cfg.tx_type;
dp83640->hwts_tx_en = cfg->tx_type;
switch (cfg.rx_filter) {
switch (cfg->rx_filter) {
case HWTSTAMP_FILTER_NONE:
dp83640->hwts_rx_en = 0;
dp83640->layer = 0;
@ -1234,7 +1232,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
dp83640->hwts_rx_en = 1;
dp83640->layer = PTP_CLASS_L4;
dp83640->version = PTP_CLASS_V1;
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
break;
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
@ -1242,7 +1240,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
dp83640->hwts_rx_en = 1;
dp83640->layer = PTP_CLASS_L4;
dp83640->version = PTP_CLASS_V2;
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
break;
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
@ -1250,7 +1248,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
dp83640->hwts_rx_en = 1;
dp83640->layer = PTP_CLASS_L2;
dp83640->version = PTP_CLASS_V2;
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
break;
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_SYNC:
@ -1258,7 +1256,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
dp83640->hwts_rx_en = 1;
dp83640->layer = PTP_CLASS_L4 | PTP_CLASS_L2;
dp83640->version = PTP_CLASS_V2;
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
break;
default:
return -ERANGE;
@ -1292,7 +1290,7 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
mutex_unlock(&dp83640->clock->extreg_lock);
return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
return 0;
}
static void rx_timestamp_work(struct work_struct *work)

38
drivers/net/phy/micrel.c
View File

@ -2395,24 +2395,22 @@ static void lan8814_flush_fifo(struct phy_device *phydev, bool egress)
lanphy_read_page_reg(phydev, 5, PTP_TSU_INT_STS);
}
static int lan8814_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
static int lan8814_hwtstamp(struct mii_timestamper *mii_ts,
struct kernel_hwtstamp_config *config,
struct netlink_ext_ack *extack)
{
struct kszphy_ptp_priv *ptp_priv =
container_of(mii_ts, struct kszphy_ptp_priv, mii_ts);
struct phy_device *phydev = ptp_priv->phydev;
struct lan8814_shared_priv *shared = phydev->shared->priv;
struct lan8814_ptp_rx_ts *rx_ts, *tmp;
struct hwtstamp_config config;
int txcfg = 0, rxcfg = 0;
int pkt_ts_enable;
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
ptp_priv->hwts_tx_type = config->tx_type;
ptp_priv->rx_filter = config->rx_filter;
ptp_priv->hwts_tx_type = config.tx_type;
ptp_priv->rx_filter = config.rx_filter;
switch (config.rx_filter) {
switch (config->rx_filter) {
case HWTSTAMP_FILTER_NONE:
ptp_priv->layer = 0;
ptp_priv->version = 0;
@ -2458,13 +2456,13 @@ static int lan8814_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
lanphy_write_page_reg(ptp_priv->phydev, 5, PTP_TX_MOD,
PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_);
if (config.rx_filter != HWTSTAMP_FILTER_NONE)
if (config->rx_filter != HWTSTAMP_FILTER_NONE)
lan8814_config_ts_intr(ptp_priv->phydev, true);
else
lan8814_config_ts_intr(ptp_priv->phydev, false);
mutex_lock(&shared->shared_lock);
if (config.rx_filter != HWTSTAMP_FILTER_NONE)
if (config->rx_filter != HWTSTAMP_FILTER_NONE)
shared->ref++;
else
shared->ref--;
@ -2488,7 +2486,7 @@ static int lan8814_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
lan8814_flush_fifo(ptp_priv->phydev, false);
lan8814_flush_fifo(ptp_priv->phydev, true);
return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? -EFAULT : 0;
return 0;
}
static void lan8814_txtstamp(struct mii_timestamper *mii_ts,
@ -3703,21 +3701,19 @@ static void lan8841_ptp_enable_processing(struct kszphy_ptp_priv *ptp_priv,
#define LAN8841_PTP_TX_TIMESTAMP_EN 443
#define LAN8841_PTP_TX_MOD 445
static int lan8841_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
static int lan8841_hwtstamp(struct mii_timestamper *mii_ts,
struct kernel_hwtstamp_config *config,
struct netlink_ext_ack *extack)
{
struct kszphy_ptp_priv *ptp_priv = container_of(mii_ts, struct kszphy_ptp_priv, mii_ts);
struct phy_device *phydev = ptp_priv->phydev;
struct hwtstamp_config config;
int txcfg = 0, rxcfg = 0;
int pkt_ts_enable;
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
ptp_priv->hwts_tx_type = config->tx_type;
ptp_priv->rx_filter = config->rx_filter;
ptp_priv->hwts_tx_type = config.tx_type;
ptp_priv->rx_filter = config.rx_filter;
switch (config.rx_filter) {
switch (config->rx_filter) {
case HWTSTAMP_FILTER_NONE:
ptp_priv->layer = 0;
ptp_priv->version = 0;
@ -3771,13 +3767,13 @@ static int lan8841_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
/* Now enable/disable the timestamping */
lan8841_ptp_enable_processing(ptp_priv,
config.rx_filter != HWTSTAMP_FILTER_NONE);
config->rx_filter != HWTSTAMP_FILTER_NONE);
skb_queue_purge(&ptp_priv->tx_queue);
lan8841_ptp_flush_fifo(ptp_priv);
return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? -EFAULT : 0;
return 0;
}
static bool lan8841_rxtstamp(struct mii_timestamper *mii_ts,

18
drivers/net/phy/mscc/mscc_ptp.c
View File

@ -1045,19 +1045,17 @@ static void vsc85xx_ts_reset_fifo(struct phy_device *phydev)
val);
}
static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
struct vsc8531_private *vsc8531 =
container_of(mii_ts, struct vsc8531_private, mii_ts);
struct phy_device *phydev = vsc8531->ptp->phydev;
struct hwtstamp_config cfg;
bool one_step = false;
u32 val;
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
switch (cfg.tx_type) {
switch (cfg->tx_type) {
case HWTSTAMP_TX_ONESTEP_SYNC:
one_step = true;
break;
@ -1069,9 +1067,9 @@ static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
return -ERANGE;
}
vsc8531->ptp->tx_type = cfg.tx_type;
vsc8531->ptp->tx_type = cfg->tx_type;
switch (cfg.rx_filter) {
switch (cfg->rx_filter) {
case HWTSTAMP_FILTER_NONE:
break;
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
@ -1084,7 +1082,7 @@ static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
return -ERANGE;
}
vsc8531->ptp->rx_filter = cfg.rx_filter;
vsc8531->ptp->rx_filter = cfg->rx_filter;
mutex_lock(&vsc8531->ts_lock);
@ -1132,7 +1130,7 @@ static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
vsc8531->ptp->configured = 1;
mutex_unlock(&vsc8531->ts_lock);
return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
return 0;
}
static int vsc85xx_ts_info(struct mii_timestamper *mii_ts,

17
drivers/net/phy/nxp-c45-tja11xx.c
View File

@ -1022,24 +1022,21 @@ static bool nxp_c45_rxtstamp(struct mii_timestamper *mii_ts,
}
static int nxp_c45_hwtstamp(struct mii_timestamper *mii_ts,
struct ifreq *ifreq)
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
struct nxp_c45_phy *priv = container_of(mii_ts, struct nxp_c45_phy,
mii_ts);
struct phy_device *phydev = priv->phydev;
const struct nxp_c45_phy_data *data;
struct hwtstamp_config cfg;
if (copy_from_user(&cfg, ifreq->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.tx_type < 0 || cfg.tx_type > HWTSTAMP_TX_ON)
if (cfg->tx_type < 0 || cfg->tx_type > HWTSTAMP_TX_ON)
return -ERANGE;
data = nxp_c45_get_data(phydev);
priv->hwts_tx = cfg.tx_type;
priv->hwts_tx = cfg->tx_type;
switch (cfg.rx_filter) {
switch (cfg->rx_filter) {
case HWTSTAMP_FILTER_NONE:
priv->hwts_rx = 0;
break;
@ -1047,7 +1044,7 @@ static int nxp_c45_hwtstamp(struct mii_timestamper *mii_ts,
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
priv->hwts_rx = 1;
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
break;
default:
return -ERANGE;
@ -1074,7 +1071,7 @@ static int nxp_c45_hwtstamp(struct mii_timestamper *mii_ts,
nxp_c45_clear_reg_field(phydev, &data->regmap->irq_egr_ts_en);
nxp_c45_no_ptp_irq:
return copy_to_user(ifreq->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
return 0;
}
static int nxp_c45_ts_info(struct mii_timestamper *mii_ts,

21
drivers/net/phy/phy.c
View File

@ -325,9 +325,13 @@ EXPORT_SYMBOL(phy_ethtool_ksettings_get);
int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
{
struct mii_ioctl_data *mii_data = if_mii(ifr);
struct kernel_hwtstamp_config kernel_cfg;
struct netlink_ext_ack extack = {};
u16 val = mii_data->val_in;
bool change_autoneg = false;
struct hwtstamp_config cfg;
int prtad, devad;
int ret;
switch (cmd) {
case SIOCGMIIPHY:
@ -411,8 +415,21 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
return 0;
case SIOCSHWTSTAMP:
if (phydev->mii_ts && phydev->mii_ts->hwtstamp)
return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
if (phydev->mii_ts && phydev->mii_ts->hwtstamp) {
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
hwtstamp_config_to_kernel(&kernel_cfg, &cfg);
ret = phydev->mii_ts->hwtstamp(phydev->mii_ts, &kernel_cfg, &extack);
if (ret)
return ret;
hwtstamp_config_from_kernel(&cfg, &kernel_cfg);
if (copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)))
return -EFAULT;
return 0;
}
fallthrough;
default:

16
drivers/ptp/ptp_ines.c
View File

@ -328,17 +328,15 @@ static u64 ines_find_txts(struct ines_port *port, struct sk_buff *skb)
return ns;
}
static int ines_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
static int ines_hwtstamp(struct mii_timestamper *mii_ts,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
struct ines_port *port = container_of(mii_ts, struct ines_port, mii_ts);
u32 cm_one_step = 0, port_conf, ts_stat_rx, ts_stat_tx;
struct hwtstamp_config cfg;
unsigned long flags;
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
switch (cfg.tx_type) {
switch (cfg->tx_type) {
case HWTSTAMP_TX_OFF:
ts_stat_tx = 0;
break;
@ -353,7 +351,7 @@ static int ines_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
return -ERANGE;
}
switch (cfg.rx_filter) {
switch (cfg->rx_filter) {
case HWTSTAMP_FILTER_NONE:
ts_stat_rx = 0;
break;
@ -372,7 +370,7 @@ static int ines_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
case HWTSTAMP_FILTER_PTP_V2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
ts_stat_rx = TS_ENABLE;
cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
cfg->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
break;
default:
return -ERANGE;
@ -393,7 +391,7 @@ static int ines_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
spin_unlock_irqrestore(&port->lock, flags);
return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
return 0;
}
static void ines_link_state(struct mii_timestamper *mii_ts,

4
include/linux/mii_timestamper.h
View File

@ -9,6 +9,7 @@
#include <linux/device.h>
#include <linux/ethtool.h>
#include <linux/skbuff.h>
#include <linux/net_tstamp.h>
struct phy_device;
@ -51,7 +52,8 @@ struct mii_timestamper {
struct sk_buff *skb, int type);
int (*hwtstamp)(struct mii_timestamper *mii_ts,
struct ifreq *ifreq);
struct kernel_hwtstamp_config *kernel_config,
struct netlink_ext_ack *extack);
void (*link_state)(struct mii_timestamper *mii_ts,
struct phy_device *phydev);

6
include/linux/phy.h
View File

@ -1560,9 +1560,11 @@ static inline bool phy_has_txtstamp(struct phy_device *phydev)
return phydev && phydev->mii_ts && phydev->mii_ts->txtstamp;
}
static inline int phy_hwtstamp(struct phy_device *phydev, struct ifreq *ifr)
static inline int phy_hwtstamp(struct phy_device *phydev,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
return phydev->mii_ts->hwtstamp(phydev->mii_ts, cfg, extack);
}
static inline bool phy_rxtstamp(struct phy_device *phydev, struct sk_buff *skb,