From: Grzegorz Nitka <[email protected]> Block HW write access for the driver while the device is in reset to avoid potential race condition and access to the PTP HW in non-nominal state which could lead to undesired effects
Signed-off-by: Grzegorz Nitka <[email protected]> Co-developed-by: Karol Kolacinski <[email protected]> Signed-off-by: Karol Kolacinski <[email protected]> Signed-off-by: Sergey Temerkhanov <[email protected]> Fixes: 4aad5335969f ("ice: add individual interrupt allocation") Reviewed-by: Przemek Kitszel <[email protected]> --- drivers/net/ethernet/intel/ice/ice_ptp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 11fbf2bbcae7..40a07d0bb341 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -1408,6 +1408,10 @@ void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup) /* Update cached link status for this port immediately */ ptp_port->link_up = linkup; + /* Skip HW writes if reset is in progress */ + if (pf->hw.reset_ongoing) + return; + switch (hw->ptp.phy_model) { case ICE_PHY_E810: /* Do not reconfigure E810 PHY */ -- 2.43.0
