6.12-stable review patch. If anyone has any objections, please let me know.
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From: Karol Kolacinski karol.kolacinski@intel.com
[ Upstream commit 2e60560f1ec9b722f9c6699ec5d966f1732d14dd ]
Fix ETH56G FC-FEC incorrect Rx offset value by changing it from -255.96 to -469.26 ns.
Those values are derived from HW spec and reflect internal delays. Hex value is a fixed point representation in Q23.9 format.
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 Tested-by: Pucha Himasekhar Reddy himasekharx.reddy.pucha@intel.com (A Contingent worker at Intel) Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/intel/ice/ice_ptp_consts.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_consts.h b/drivers/net/ethernet/intel/ice/ice_ptp_consts.h index 3005dd252a102..bdb1020147d1c 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp_consts.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp_consts.h @@ -131,7 +131,7 @@ struct ice_eth56g_mac_reg_cfg eth56g_mac_cfg[NUM_ICE_ETH56G_LNK_SPD] = { .rx_offset = { .serdes = 0xffffeb27, /* -10.42424 */ .no_fec = 0xffffcccd, /* -25.6 */ - .fc = 0xfffe0014, /* -255.96 */ + .fc = 0xfffc557b, /* -469.26 */ .sfd = 0x4a4, /* 2.32 */ .bs_ds = 0x32 /* 0.0969697 */ }