igc_disable_pcie_master(9)

✨ NAME ✨

igc_disable_pcie_master — Disables PCI-express master access 💅

okay so this one is from the Kernel API Manual (section 9, bestie), and it's literally the function that disables PCI-Express master access and then verifies there are no pending requests. iconic behavior, no cap ✨

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🌸 SYNOPSIS 🌸

s32 igc_disable_pcie_master (struct igc_hw *hw );

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🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure. that's the whole argument, bestie 🫶

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💖 DESCRIPTION 💖

okay so here's the tea: it returns 0 (0) if successful, else it returns -10 (-IGC_ERR_MASTER_REQUESTS_PENDING) if the master disable bit has not caused the master requests to be disabled. not subtle, but very much on brand 😭

It disables PCI-Express master access and verifies there are no pending requests. that's literally the job. periodt 💅

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🦋 SEE ALSO 🦋

Kernel file: ./drivers/net/ethernet/intel/igc/igc_mac.c

the whole friend group:

• igc_init_rx_addrs(9)
• igc_set_fc_watermarks(9)
• igc_setup_link(9)
• igc_force_mac_fc(9)
• igc_clear_hw_cntrs_base(9)
• igc_rar_set(9)
• igc_check_for_copper_link(9)
• igc_config_collision_dist(9)
• igc_config_fc_after_link_up(9)
• igc_get_auto_rd_done(9)
• igc_get_speed_and_duplex_copper(9)
• igc_put_hw_semaphore(9)
• igc_enable_mng_pass_thru(9)
• igc_hash_mc_addr(9)
• igc_update_mc_addr_list(9)

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and that's the whole page, bestie 💜 shoutout to the source ./drivers/net/ethernet/intel/igc and the October 2026 date for this one — igc_disable_pcie_master(9), out. periodt 💅