| Message ID | 20241105122916.1824568-2-grzegorz.nitka@intel.com (mailing list archive) |
|---|---|
| State | Awaiting Upstream |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Fix E825 initialization | expand |
> -----Original Message----- > From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Grzegorz Nitka > Sent: 05 November 2024 17:59 > To: intel-wired-lan@lists.osuosl.org > Cc: netdev@vger.kernel.org; Kubalewski, Arkadiusz <arkadiusz.kubalewski@intel.com>; Kolacinski, Karol <karol.kolacinski@intel.com>; Nguyen, Anthony L <anthony.l.nguyen@intel.com>; Kitszel, Przemyslaw <przemyslaw.kitszel@intel.com> > Subject: [Intel-wired-lan] [PATCH v4 iwl-net 1/4] ice: Fix E825 initialization > > From: Karol Kolacinski <karol.kolacinski@intel.com> > > Current implementation checks revision of all PHYs on all PFs, which is incorrect and may result in initialization failure. Check only the revision of the current PHY. > > Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products") > Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> > Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com> > Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com> > --- > V1 -> V3: Removed net-next hunks, > add 'return' on PHY revision read failure > V1 -> V2: Removed net-next hunks > > drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 22 +++++++++------------ > 1 file changed, 9 insertions(+), 13 deletions(-) > Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c index ec8db830ac73..d27b2f52b5ce 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c @@ -2663,14 +2663,15 @@ static bool ice_is_muxed_topo(struct ice_hw *hw) } /** - * ice_ptp_init_phy_e825c - initialize PHY parameters + * ice_ptp_init_phy_e825 - initialize PHY parameters * @hw: pointer to the HW struct */ -static void ice_ptp_init_phy_e825c(struct ice_hw *hw) +static void ice_ptp_init_phy_e825(struct ice_hw *hw) { struct ice_ptp_hw *ptp = &hw->ptp; struct ice_eth56g_params *params; - u8 phy; + u32 phy_rev; + int err; ptp->phy_model = ICE_PHY_ETH56G; params = &ptp->phy.eth56g; @@ -2684,15 +2685,10 @@ static void ice_ptp_init_phy_e825c(struct ice_hw *hw) ptp->num_lports = params->num_phys * ptp->ports_per_phy; ice_sb_access_ena_eth56g(hw, true); - for (phy = 0; phy < params->num_phys; phy++) { - u32 phy_rev; - int err; - - err = ice_read_phy_eth56g(hw, phy, PHY_REG_REVISION, &phy_rev); - if (err || phy_rev != PHY_REVISION_ETH56G) { - ptp->phy_model = ICE_PHY_UNSUP; - return; - } + err = ice_read_phy_eth56g(hw, hw->pf_id, PHY_REG_REVISION, &phy_rev); + if (err || phy_rev != PHY_REVISION_ETH56G) { + ptp->phy_model = ICE_PHY_UNSUP; + return; } ptp->is_2x50g_muxed_topo = ice_is_muxed_topo(hw); @@ -5394,7 +5390,7 @@ void ice_ptp_init_hw(struct ice_hw *hw) else if (ice_is_e810(hw)) ice_ptp_init_phy_e810(ptp); else if (ice_is_e825c(hw)) - ice_ptp_init_phy_e825c(hw); + ice_ptp_init_phy_e825(hw); else ptp->phy_model = ICE_PHY_UNSUP; }