prot_autoc_read_82599(9)

💖 prot_autoc_read_82599(9) — a Kernel API Manual moment 💖

okay so bestie, we're deep in the Kernel API Manual today and the star of the show is prot_autoc_read_82599 — yes the whole 82599 situation, we're getting into it. grab a strawberry 🍓 and let's go.

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✨ NAME ✨

prot_autoc_read_82599 — lowkey hides the MAC differences that are needed for an AUTOC read 🫶

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🌸 SYNOPSIS 🌸

int prot_autoc_read_82599 (struct ixgbe_hw *hw , bool *locked , u32
*reg_val );

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🎀 ARGUMENTS 🎀

• hw — pointer to the hardware structure, like the main character of this whole function ngl 💅
• locked — returns whether we locked for this read, bestie. it's giving "was I locked or not" energy 🔒
• reg_val — the value we read from AUTOC ✨

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🦋 DESCRIPTION 🦋

so for this part specifically — the 82599 — we have to wrap read-modify-writes with a possible FW/SW lock 🔐 no cap, it's just how it is.

it is assumed that this lock will be freed with the next prot_autoc_write_82599 — so like, don't leave it hanging, that's the vibe 🤝

note bestie: locked can only be true in cases where this function doesn't return an error 😭 like, the lock only counts if the read actually succeeded. remember that, it's important fr fr 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
• prot_autoc_write_82599(9)
• ixgbe_init_phy_ops_82599(9)
• ixgbe_get_link_capabilities_82599(9)
• ixgbe_get_media_type_82599(9)
• ixgbe_stop_mac_link_on_d3_82599(9)
• ixgbe_start_mac_link_82599(9)
• ixgbe_disable_tx_laser_multispeed_fiber(9)
• ixgbe_enable_tx_laser_multispeed_fiber(9)
• ixgbe_flap_tx_laser_multispeed_fiber(9)
• ixgbe_set_hard_rate_select_speed(9)
• ixgbe_setup_mac_link_smartspeed(9)
• ixgbe_setup_mac_link_82599(9)
• ixgbe_setup_copper_link_82599(9)
• ixgbe_reset_hw_82599(9)
• ixgbe_fdir_check_cmd_complete(9)
• ixgbe_reinit_fdir_tables_82599(9)
• ixgbe_fdir_enable_82599(9)
• ixgbe_init_fdir_signature_82599(9)
• ixgbe_init_fdir_perfect_82599(9)
• ixgbe_atr_compute_sig_hash_82599(9)
• ixgbe_fdir_add_signature_filter_82599(9)
• ixgbe_atr_compute_perfect_hash_82599(9)
• ixgbe_get_fdirtcpm_82599(9)
• ixgbe_read_analog_reg8_82599(9)
• ixgbe_write_analog_reg8_82599(9)
• ixgbe_start_hw_82599(9)
• ixgbe_identify_phy_82599(9)
• ixgbe_enable_rx_dma_82599(9)
• ixgbe_verify_fw_version_82599(9)
• ixgbe_verify_lesm_fw_enabled_82599(9)
• ixgbe_read_eeprom_buffer_82599(9)
• ixgbe_read_eeprom_82599(9)
• ixgbe_reset_pipeline_82599(9)
• ixgbe_read_i2c_byte_82599(9)
• ixgbe_write_i2c_byte_82599(9)

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and that's the whole page bestie, no notes 💜

🎀 sign-off time 🎀 this lil gem comes from the source/version line ./drivers/net/ethernet/intel/i... and it's dated October 2026 — yeah, the future, iconic behavior honestly 👑✨