From b47aec885bcd672ebca2108a8b7e9ce3e3982775 Mon Sep 17 00:00:00 2001 From: Ong Boon Leong Date: Wed, 15 Jun 2022 16:39:06 +0800 Subject: net: pcs: xpcs: add CL37 1000BASE-X AN support For CL37 1000BASE-X AN, DW xPCS does not support C22 method but offers C45 vendor-specific MII MMD for programming. We also add the ability to disable Autoneg (through ethtool for certain network switch that supports 1000BASE-X (1000Mbps and Full-Duplex) but not Autoneg capability. v4: Fixes to comment from Russell King. Thanks! https://patchwork.kernel.org/comment/24894239/ Make xpcs_modify_changed() as private, change to use mdiodev_modify_changed() for cleaner code. v3: Fixes to issues spotted by Russell King. Thanks! https://patchwork.kernel.org/comment/24890210/ Use phylink_mii_c22_pcs_decode_state(), remove unnecessary interrupt clearing and skip speed & duplex setting if AN is enabled. v2: Fixes to issues spotted by Russell King in v1. Thanks! https://patchwork.kernel.org/comment/24826650/ Use phylink_mii_c22_pcs_encode_advertisement() and implement C45 MII ADV handling since IP only support C45 access. Tested-by: Emilio Riva Signed-off-by: Ong Boon Leong Reviewed-by: Russell King (Oracle) Signed-off-by: David S. Miller --- include/linux/pcs/pcs-xpcs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/pcs/pcs-xpcs.h b/include/linux/pcs/pcs-xpcs.h index 37eb97cc2283..d2da1e0b4a92 100644 --- a/include/linux/pcs/pcs-xpcs.h +++ b/include/linux/pcs/pcs-xpcs.h @@ -17,6 +17,7 @@ #define DW_AN_C73 1 #define DW_AN_C37_SGMII 2 #define DW_2500BASEX 3 +#define DW_AN_C37_1000BASEX 4 struct xpcs_id; -- cgit v1.2.3