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net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX

Browse Source 
Since commit 94dd016ae5 ("bond: pass get_ts_info and SIOC[SG]HWTSTAMP
ioctl to active device") the user could get bond active interface's
PHC index directly. But when there is a failover, the bond active
interface will change, thus the PHC index is also changed. This may
break the user's program if they did not update the PHC timely.

This patch adds a new hwtstamp_config flag HWTSTAMP_FLAG_BONDED_PHC_INDEX.
When the user wants to get the bond active interface's PHC, they need to
add this flag and be aware the PHC index may be changed.

With the new flag. All flag checks in current drivers are removed. Only
the checking in net_hwtstamp_validate() is kept.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hangbin Liu 2021-12-10 16:59:58 +08:00 committed by David S. Miller
parent a3c62a0422
commit 9c9211a3fc
40 changed files with 16 additions and 144 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/dsa/hirschmann/hellcreek_hwtstamp.c
View File

@ -52,10 +52,6 @@ static int hellcreek_set_hwtstamp_config(struct hellcreek *hellcreek, int port,
*/
clear_bit_unlock(HELLCREEK_HWTSTAMP_ENABLED, &ps->state);
/* Reserved for future extensions */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_ON:
tx_tstamp_enable = true;

4
drivers/net/dsa/mv88e6xxx/hwtstamp.c
View File

@ -100,10 +100,6 @@ static int mv88e6xxx_set_hwtstamp_config(struct mv88e6xxx_chip *chip, int port,
*/
clear_bit_unlock(MV88E6XXX_HWTSTAMP_ENABLED, &ps->state);
/* reserved for future extensions */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
tstamp_enable = false;

3
drivers/net/ethernet/amd/xgbe/xgbe-drv.c
View File

@ -1508,9 +1508,6 @@ static int xgbe_set_hwtstamp_settings(struct xgbe_prv_data *pdata,
if (copy_from_user(&config, ifreq->ifr_data, sizeof(config)))
return -EFAULT;
if (config.flags)
return -EINVAL;
mac_tscr = 0;
switch (config.tx_type) {

3
drivers/net/ethernet/aquantia/atlantic/aq_main.c
View File

@ -231,9 +231,6 @@ static void aq_ndev_set_multicast_settings(struct net_device *ndev)
static int aq_ndev_config_hwtstamp(struct aq_nic_s *aq_nic,
struct hwtstamp_config *config)
{
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
case HWTSTAMP_TX_ON:

5
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View File

@ -15356,11 +15356,6 @@ static int bnx2x_hwtstamp_ioctl(struct bnx2x *bp, struct ifreq *ifr)
DP(BNX2X_MSG_PTP, "Requested tx_type: %d, requested rx_filters = %d\n",
config.tx_type, config.rx_filter);
if (config.flags) {
BNX2X_ERR("config.flags is reserved for future use\n");
return -EINVAL;
}
bp->hwtstamp_ioctl_called = true;
bp->tx_type = config.tx_type;
bp->rx_filter = config.rx_filter;

3
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
View File

@ -417,9 +417,6 @@ int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
if (copy_from_user(&stmpconf, ifr->ifr_data, sizeof(stmpconf)))
return -EFAULT;
if (stmpconf.flags)
return -EINVAL;
if (stmpconf.tx_type != HWTSTAMP_TX_ON &&
stmpconf.tx_type != HWTSTAMP_TX_OFF)
return -ERANGE;

3
drivers/net/ethernet/broadcom/tg3.c
View File

@ -13806,9 +13806,6 @@ static int tg3_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
if (copy_from_user(&stmpconf, ifr->ifr_data, sizeof(stmpconf)))
return -EFAULT;
if (stmpconf.flags)
return -EINVAL;
if (stmpconf.tx_type != HWTSTAMP_TX_ON &&
stmpconf.tx_type != HWTSTAMP_TX_OFF)
return -ERANGE;

4
drivers/net/ethernet/cadence/macb_ptp.c
View File

@ -464,10 +464,6 @@ int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd)
sizeof(*tstamp_config)))
return -EFAULT;
/* reserved for future extensions */
if (tstamp_config->flags)
return -EINVAL;
switch (tstamp_config->tx_type) {
case HWTSTAMP_TX_OFF:
break;

3
drivers/net/ethernet/cavium/liquidio/lio_main.c
View File

@ -2114,9 +2114,6 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr)
if (copy_from_user(&conf, ifr->ifr_data, sizeof(conf)))
return -EFAULT;
if (conf.flags)
return -EINVAL;
switch (conf.tx_type) {
case HWTSTAMP_TX_ON:
case HWTSTAMP_TX_OFF:

3
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
View File

@ -1254,9 +1254,6 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr)
if (copy_from_user(&conf, ifr->ifr_data, sizeof(conf)))
return -EFAULT;
if (conf.flags)
return -EINVAL;
switch (conf.tx_type) {
case HWTSTAMP_TX_ON:
case HWTSTAMP_TX_OFF:

3
drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
View File

@ -702,9 +702,6 @@ static int octeon_mgmt_ioctl_hwtstamp(struct net_device *netdev,
if (copy_from_user(&config, rq->ifr_data, sizeof(config)))
return -EFAULT;
if (config.flags) /* reserved for future extensions */
return -EINVAL;
/* Check the status of hardware for tiemstamps */
if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
/* Get the current state of the PTP clock */

4
drivers/net/ethernet/cavium/thunder/nicvf_main.c
View File

@ -1917,10 +1917,6 @@ static int nicvf_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
case HWTSTAMP_TX_ON:

3
drivers/net/ethernet/engleder/tsnep_ptp.c
View File

@ -31,9 +31,6 @@ int tsnep_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
if (config.flags)
return -EINVAL;
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
case HWTSTAMP_TX_ON:

4
drivers/net/ethernet/freescale/fec_ptp.c
View File

@ -473,10 +473,6 @@ int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
fep->hwts_tx_en = 0;

4
drivers/net/ethernet/freescale/gianfar.c
View File

@ -2076,10 +2076,6 @@ static int gfar_hwtstamp_set(struct net_device *netdev, struct ifreq *ifr)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
priv->hwts_tx_en = 0;

4
drivers/net/ethernet/intel/e1000e/netdev.c
View File

@ -3614,10 +3614,6 @@ static int e1000e_config_hwtstamp(struct e1000_adapter *adapter,
if (!(adapter->flags & FLAG_HAS_HW_TIMESTAMP))
return -EINVAL;
/* flags reserved for future extensions - must be zero */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
tsync_tx_ctl = 0;

4
drivers/net/ethernet/intel/i40e/i40e_ptp.c
View File

@ -1205,10 +1205,6 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
INIT_WORK(&pf->ptp_extts0_work, i40e_ptp_extts0_work);
/* Reserved for future extensions. */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
pf->ptp_tx = false;

4
drivers/net/ethernet/intel/ice/ice_ptp.c
View File

@ -1205,10 +1205,6 @@ int ice_ptp_get_ts_config(struct ice_pf *pf, struct ifreq *ifr)
static int
ice_ptp_set_timestamp_mode(struct ice_pf *pf, struct hwtstamp_config *config)
{
/* Reserved for future extensions. */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
ice_set_tx_tstamp(pf, false);

4
drivers/net/ethernet/intel/igb/igb_ptp.c
View File

@ -1015,10 +1015,6 @@ static int igb_ptp_set_timestamp_mode(struct igb_adapter *adapter,
bool is_l2 = false;
u32 regval;
/* reserved for future extensions */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
tsync_tx_ctl = 0;

4
drivers/net/ethernet/intel/igc/igc_ptp.c
View File

@ -560,10 +560,6 @@ static void igc_ptp_enable_tx_timestamp(struct igc_adapter *adapter)
static int igc_ptp_set_timestamp_mode(struct igc_adapter *adapter,
struct hwtstamp_config *config)
{
/* reserved for future extensions */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
igc_ptp_disable_tx_timestamp(adapter);

4
drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
View File

@ -992,10 +992,6 @@ static int ixgbe_ptp_set_timestamp_mode(struct ixgbe_adapter *adapter,
bool is_l2 = false;
u32 regval;
/* reserved for future extensions */
if (config->flags)
return -EINVAL;
switch (config->tx_type) {
case HWTSTAMP_TX_OFF:
tsync_tx_ctl = 0;

3
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
View File

@ -5142,9 +5142,6 @@ static int mvpp2_set_ts_config(struct mvpp2_port *port, struct ifreq *ifr)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
if (config.flags)
return -EINVAL;
if (config.tx_type != HWTSTAMP_TX_OFF &&
config.tx_type != HWTSTAMP_TX_ON)
return -ERANGE;

4
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
View File

@ -2002,10 +2002,6 @@ int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
otx2_config_hw_tx_tstamp(pfvf, false);

4
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -2427,10 +2427,6 @@ static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
/* device doesn't support time stamping */
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS))
return -EINVAL;

6
drivers/net/ethernet/microchip/lan743x_ptp.c
View File

@ -1305,12 +1305,6 @@ int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
return -EFAULT;
if (config.flags) {
netif_warn(adapter, drv, adapter->netdev,
"ignoring hwtstamp_config.flags == 0x%08X, expected 0\n",
config.flags);
}
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
for (index = 0; index < LAN743X_MAX_TX_CHANNELS;

4
drivers/net/ethernet/mscc/ocelot.c
View File

@ -1617,10 +1617,6 @@ int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
/* reserved for future extensions */
if (cfg.flags)
return -EINVAL;
/* Tx type sanity check */
switch (cfg.tx_type) {
case HWTSTAMP_TX_ON:

4
drivers/net/ethernet/neterion/vxge/vxge-main.c
View File

@ -3159,10 +3159,6 @@ static int vxge_hwtstamp_set(struct vxgedev *vdev, void __user *data)
if (copy_from_user(&config, data, sizeof(config)))
return -EFAULT;
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
/* Transmit HW Timestamp not supported */
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:

3
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
View File

@ -210,9 +210,6 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.flags) /* reserved for future extensions */
return -EINVAL;
/* Get ieee1588's dev information */
pdev = adapter->ptp_pdev;

5
drivers/net/ethernet/qlogic/qede/qede_ptp.c
View File

@ -304,11 +304,6 @@ int qede_ptp_hw_ts(struct qede_dev *edev, struct ifreq *ifr)
"HWTSTAMP IOCTL: Requested tx_type = %d, requested rx_filters = %d\n",
config.tx_type, config.rx_filter);
if (config.flags) {
DP_ERR(edev, "config.flags is reserved for future use\n");
return -EINVAL;
}
ptp->hw_ts_ioctl_called = 1;
ptp->tx_type = config.tx_type;
ptp->rx_filter = config.rx_filter;

4
drivers/net/ethernet/renesas/ravb_main.c
View File

@ -2221,10 +2221,6 @@ static int ravb_hwtstamp_set(struct net_device *ndev, struct ifreq *req)
if (copy_from_user(&config, req->ifr_data, sizeof(config)))
return -EFAULT;
/* Reserved for future extensions */
if (config.flags)
return -EINVAL;
switch (config.tx_type) {
case HWTSTAMP_TX_OFF:
tstamp_tx_ctrl = 0;

3
drivers/net/ethernet/sfc/ptp.c
View File

@ -1765,9 +1765,6 @@ static int efx_ptp_ts_init(struct efx_nic *efx, struct hwtstamp_config *init)
{
int rc;
if (init->flags)
return -EINVAL;
if ((init->tx_type != HWTSTAMP_TX_OFF) &&
(init->tx_type != HWTSTAMP_TX_ON))
return -ERANGE;

4
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -638,10 +638,6 @@ static int stmmac_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
netdev_dbg(priv->dev, "%s config flags:0x%x, tx_type:0x%x, rx_filter:0x%x\n",
__func__, config.flags, config.tx_type, config.rx_filter);
/* reserved for future extensions */
if (config.flags)
return -EINVAL;
if (config.tx_type != HWTSTAMP_TX_OFF &&
config.tx_type != HWTSTAMP_TX_ON)
return -ERANGE;

4
drivers/net/ethernet/ti/cpsw_priv.c
View File

@ -626,10 +626,6 @@ static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
/* reserved for future extensions */
if (cfg.flags)
return -EINVAL;
if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
return -ERANGE;

4
drivers/net/ethernet/ti/netcp_ethss.c
View File

@ -2654,10 +2654,6 @@ static int gbe_hwtstamp_set(struct gbe_intf *gbe_intf, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
/* reserved for future extensions */
if (cfg.flags)
return -EINVAL;
switch (cfg.tx_type) {
case HWTSTAMP_TX_OFF:
gbe_dev->tx_ts_enabled = 0;

3
drivers/net/ethernet/xscale/ixp4xx_eth.c
View File

@ -382,9 +382,6 @@ static int hwtstamp_set(struct net_device *netdev, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.flags) /* reserved for future extensions */
return -EINVAL;
ret = ixp46x_ptp_find(&port->timesync_regs, &port->phc_index);
if (ret)
return ret;

3
drivers/net/phy/dp83640.c
View File

@ -1235,9 +1235,6 @@ static int dp83640_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.flags) /* reserved for future extensions */
return -EINVAL;
if (cfg.tx_type < 0 || cfg.tx_type > HWTSTAMP_TX_ONESTEP_SYNC)
return -ERANGE;

3
drivers/net/phy/mscc/mscc_ptp.c
View File

@ -1057,9 +1057,6 @@ static int vsc85xx_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.flags)
return -EINVAL;
switch (cfg.tx_type) {
case HWTSTAMP_TX_ONESTEP_SYNC:
one_step = true;

4
drivers/ptp/ptp_ines.c
View File

@ -338,10 +338,6 @@ static int ines_hwtstamp(struct mii_timestamper *mii_ts, struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
/* reserved for future extensions */
if (cfg.flags)
return -EINVAL;
switch (cfg.tx_type) {
case HWTSTAMP_TX_OFF:
ts_stat_tx = 0;

16
include/uapi/linux/net_tstamp.h
View File

@ -62,7 +62,7 @@ struct so_timestamping {
/**
* struct hwtstamp_config - %SIOCGHWTSTAMP and %SIOCSHWTSTAMP parameter
*
* @flags: no flags defined right now, must be zero for %SIOCSHWTSTAMP
* @flags: one of HWTSTAMP_FLAG_*
* @tx_type: one of HWTSTAMP_TX_*
* @rx_filter: one of HWTSTAMP_FILTER_*
*
@ -78,6 +78,20 @@ struct hwtstamp_config {
int rx_filter;
};
/* possible values for hwtstamp_config->flags */
enum hwtstamp_flags {
/*
* With this flag, the user could get bond active interface's
* PHC index. Note this PHC index is not stable as when there
* is a failover, the bond active interface will be changed, so
* will be the PHC index.
*/
HWTSTAMP_FLAG_BONDED_PHC_INDEX = (1<<0),
HWTSTAMP_FLAG_LAST = HWTSTAMP_FLAG_BONDED_PHC_INDEX,
HWTSTAMP_FLAG_MASK = (HWTSTAMP_FLAG_LAST - 1) | HWTSTAMP_FLAG_LAST
};
/* possible values for hwtstamp_config->tx_type */
enum hwtstamp_tx_types {
/*

2
net/core/dev_ioctl.c
View File

@ -192,7 +192,7 @@ static int net_hwtstamp_validate(struct ifreq *ifr)
if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
return -EFAULT;
if (cfg.flags) /* reserved for future extensions */
if (cfg.flags & ~HWTSTAMP_FLAG_MASK)
return -EINVAL;
tx_type = cfg.tx_type;