diff options
| author | Csókás Bence <csokas.bence@prolan.hu> | 2022-08-22 11:10:52 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-08-24 11:53:23 +0300 |
| commit | f79959220fa5fbda939592bf91c7a9ea90419040 (patch) | |
| tree | 78b7f0a580e019138316ca0cad88a4d10369a254 /drivers/net/ethernet/freescale/fec.h | |
| parent | d5485d9dd24e1d04e5509916515260186eb1455c (diff) | |
| download | linux-f79959220fa5fbda939592bf91c7a9ea90419040.tar.xz | |
fec: Restart PPS after link state change
On link state change, the controller gets reset,
causing PPS to drop out and the PHC to lose its
time and calibration. So we restart it if needed,
restoring calibration and time registers.
Changes since v2:
* Add `fec_ptp_save_state()`/`fec_ptp_restore_state()`
* Use `ktime_get_real_ns()`
* Use `BIT()` macro
Changes since v1:
* More ECR #define's
* Stop PPS in `fec_ptp_stop()`
Signed-off-by: Csókás Bence <csokas.bence@prolan.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/fec.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index ed7301b69169..0cebe4b63adb 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -634,6 +634,13 @@ struct fec_enet_private { int pps_enable; unsigned int next_counter; + struct { + struct timespec64 ts_phc; + u64 ns_sys; + u32 at_corr; + u8 at_inc_corr; + } ptp_saved_state; + u64 ethtool_stats[]; }; @@ -644,5 +651,8 @@ void fec_ptp_disable_hwts(struct net_device *ndev); int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr); int fec_ptp_get(struct net_device *ndev, struct ifreq *ifr); +void fec_ptp_save_state(struct fec_enet_private *fep); +int fec_ptp_restore_state(struct fec_enet_private *fep); + /****************************************************************************/ #endif /* FEC_H */ |