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[v2,iwl-net,3/4] ice: Fix ETH56G FC-FEC Rx offset value

Message ID 20241010142254.2047150-4-karol.kolacinski@intel.com
State Changes Requested
Delegated to: Anthony Nguyen
Headers show
Series Fix E825 initialization | expand

Commit Message

Karol Kolacinski Oct. 10, 2024, 2:21 p.m. UTC 
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>
---
 drivers/net/ethernet/intel/ice/ice_ptp_consts.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_consts.h b/drivers/net/ethernet/intel/ice/ice_ptp_consts.h
index e63f2a36eabf..339b9f59ddde 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_consts.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_consts.h
@@ -86,7 +86,7 @@  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 */
 		}