phylink_speed_up(9)

🌸 NAME 🌸

okay so this is phylink_speed_up(9) from the Kernel API Manual — the manual page bestie for restoring the advertised speeds prior to the call to phylink_speed_down(). 💖

phylink_speed_up — restore the advertised speeds prior to the call to phylink_speed_down()

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✨ SYNOPSIS ✨

int phylink_speed_up (struct phylink *pl );

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🎀 ARGUMENTS 🎀

• pl — a pointer to a struct phylink returned from phylink_create. That's the whole cast, no extras. 🫶

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🦋 DESCRIPTION 🦋

okay so here's the vibe check: If we have a PHY that is not part of a SFP module, then restore the PHY speeds as per phy_speed_up. That's it — it's the “put it back” bestie to phylink_speed_down()'s whole situation, and the advertised speeds get restored prior to that call. ✨

Returns zero if there is no PHY, otherwise as per phy_speed_up. No cap, that's the return contract. 💅

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🌈 SEE ALSO 🌈

the whole phylink friend group, fr fr — no skips, no missing links:

• Kernel file ./drivers/net/phy/phylink.c — and struct phylink(9) is part of the ref crew
• phylink_set_port_modes(9)
• phylink_interface_max_speed(9)
• phylink_caps_to_link_caps(9)
• phylink_caps_to_linkmodes(9)
• phylink_limit_mac_speed(9)
• phylink_cap_from_speed_duplex(9)
• phylink_get_capabilities(9)
• phylink_validate_mask_caps(9)
• phylink_pcs_neg_mode(9)
• phylink_set_fixed_link(9)
• phylink_create(9)
• phylink_destroy(9)
• phylink_expects_phy(9)
• phylink_connect_phy(9)
• phylink_of_phy_connect(9)
• phylink_fwnode_phy_connect(9)
• phylink_disconnect_phy(9)
• phylink_mac_change(9)
• phylink_pcs_change(9)
• phylink_start(9)
• phylink_stop(9)
• phylink_rx_clk_stop_block(9)
• phylink_rx_clk_stop_unblock(9)
• phylink_suspend(9)
• phylink_prepare_resume(9)
• phylink_resume(9)
• phylink_ethtool_get_wol(9)
• phylink_ethtool_set_wol(9)
• phylink_ethtool_ksettings_get(9)
• phylink_ethtool_ksettings_set(9)
• phylink_ethtool_nway_reset(9)
• phylink_ethtool_get_pauseparam(9)
• phylink_ethtool_set_pauseparam(9)
• phylink_get_eee_err(9)
• phylink_ethtool_get_eee(9)
• phylink_ethtool_set_eee(9)
• phylink_mii_ioctl(9)
• phylink_speed_down(9)
• phylink_decode_usxgmii_word(9)
• phylink_decode_usgmii_word(9)
• phylink_mii_c22_pcs_decode_state(9)
• phylink_mii_c22_pcs_get_state(9)
• phylink_mii_c22_pcs_encode_advertisement(9)
• phylink_mii_c22_pcs_config(9)
• phylink_mii_c22_pcs_an_restart(9)
• phylink_replay_link_begin(9)
• phylink_replay_link_end(9)

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xoxo, your Unix bestie 💖 — source/version: ./drivers/net/phy, Kernel API Manual; date: October 2026; page: phylink_speed_up(9) ✨