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491c5dc98b
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 <ychemla@nvidia.com> Reviewed-by: Shahar Shitrit <shshitrit@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/1763585297-1243980-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* link caps internal header, for link modes <-> capabilities <-> interfaces
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* conversions.
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*/
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#ifndef __PHY_CAPS_H
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#define __PHY_CAPS_H
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#include <linux/ethtool.h>
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#include <linux/phy.h>
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enum {
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LINK_CAPA_10HD = 0,
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LINK_CAPA_10FD,
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LINK_CAPA_100HD,
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LINK_CAPA_100FD,
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LINK_CAPA_1000HD,
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LINK_CAPA_1000FD,
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LINK_CAPA_2500FD,
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LINK_CAPA_5000FD,
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LINK_CAPA_10000FD,
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LINK_CAPA_20000FD,
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LINK_CAPA_25000FD,
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LINK_CAPA_40000FD,
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LINK_CAPA_50000FD,
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LINK_CAPA_56000FD,
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LINK_CAPA_100000FD,
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LINK_CAPA_200000FD,
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LINK_CAPA_400000FD,
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LINK_CAPA_800000FD,
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LINK_CAPA_1600000FD,
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__LINK_CAPA_MAX,
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};
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#define LINK_CAPA_ALL GENMASK((__LINK_CAPA_MAX - 1), 0)
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struct link_capabilities {
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int speed;
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unsigned int duplex;
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__ETHTOOL_DECLARE_LINK_MODE_MASK(linkmodes);
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};
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int __init phy_caps_init(void);
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size_t phy_caps_speeds(unsigned int *speeds, size_t size,
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unsigned long *linkmodes);
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void phy_caps_linkmode_max_speed(u32 max_speed, unsigned long *linkmodes);
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bool phy_caps_valid(int speed, int duplex, const unsigned long *linkmodes);
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void phy_caps_linkmodes(unsigned long caps, unsigned long *linkmodes);
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unsigned long phy_caps_from_interface(phy_interface_t interface);
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const struct link_capabilities *
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phy_caps_lookup_by_linkmode(const unsigned long *linkmodes);
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const struct link_capabilities *
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phy_caps_lookup_by_linkmode_rev(const unsigned long *linkmodes, bool fdx_only);
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const struct link_capabilities *
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phy_caps_lookup(int speed, unsigned int duplex, const unsigned long *supported,
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bool exact);
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#endif /* __PHY_CAPS_H */
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