From 491c5dc98b848c4781addd514caed95039e5366c Mon Sep 17 00:00:00 2001 From: Yael Chemla Date: Wed, 19 Nov 2025 22:48:15 +0200 Subject: net: ethtool: Add support for 1600Gbps speed Add support for 1600Gbps link modes based on 200Gbps per lane [1]. This includes the adopted IEEE 802.3dj copper and optical PMDs that use 200G/lane signaling [2]. Add the following PMD types: - KR8 (backplane) - CR8 (copper cable) - DR8 (SMF 500m) - DR8-2 (SMF 2km) These modes are defined in the 802.3dj specifications. References: [1] https://www.ieee802.org/3/dj/public/23_03/opsasnick_3dj_01a_2303.pdf [2] https://www.ieee802.org/3/dj/projdoc/objectives_P802d3dj_240314.pdf Signed-off-by: Yael Chemla Reviewed-by: Shahar Shitrit Signed-off-by: Tariq Toukan Reviewed-by: Maxime Chevallier Link: https://patch.msgid.link/1763585297-1243980-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski --- include/uapi/linux/ethtool.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index 8bd5ea5469d9..eb7ff2602fbb 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -2077,6 +2077,10 @@ enum ethtool_link_mode_bit_indices { ETHTOOL_LINK_MODE_800000baseDR4_2_Full_BIT = 118, ETHTOOL_LINK_MODE_800000baseSR4_Full_BIT = 119, ETHTOOL_LINK_MODE_800000baseVR4_Full_BIT = 120, + ETHTOOL_LINK_MODE_1600000baseCR8_Full_BIT = 121, + ETHTOOL_LINK_MODE_1600000baseKR8_Full_BIT = 122, + ETHTOOL_LINK_MODE_1600000baseDR8_Full_BIT = 123, + ETHTOOL_LINK_MODE_1600000baseDR8_2_Full_BIT = 124, /* must be last entry */ __ETHTOOL_LINK_MODE_MASK_NBITS @@ -2190,6 +2194,7 @@ enum ethtool_link_mode_bit_indices { #define SPEED_200000 200000 #define SPEED_400000 400000 #define SPEED_800000 800000 +#define SPEED_1600000 1600000 #define SPEED_UNKNOWN -1 -- cgit v1.2.3