ata_sff_lost_interrupt(9)

💖 NAME 💖

okay bestie 💖, this is the ata_sff_lost_interrupt(9) page from the Kernel API Manual, and the whole mission is literally: Check for an apparent lost interrupt ✨. It's giving “error-handler detective notices something sus” energy, and we're here for it 🕵️‍♀️💅.

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✨ SYNOPSIS ✨

void ata_sff_lost_interrupt (struct ata_port *ap );

no cap, that's the exact signature — we do not mess with the literal code 🫶.

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🎀 ARGUMENTS 🎀

• ap — the port that appears to have timed out. that's the port in question, bestie 😭.

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🦋 DESCRIPTION 🦋

so picture this: this function gets called from the libata error handlers when the core code suspects an interrupt has been lost 👀. If it has, the move is to complete anything we can and then return. periodt.

tiny caveat, and it matters: the interface must support altstatus for this faster recovery to occur. no altstatus, no faster-recovery slay — that's literally the condition 🌸.

Locking: Caller holds host lock — yes, the caller holds the host lock. keep that in mind, bestie, it's important 💅.

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👀 SEE ALSO 👀

Kernel file ./drivers/ata/libata-sff.c plus the whole function squad:

• ata_sff_check_status(9), ata_sff_altstatus(9), ata_sff_irq_status(9), ata_sff_sync(9), ata_sff_pause(9), ata_sff_dma_pause(9), ata_sff_wait_ready(9)
• ata_sff_set_devctl(9), ata_sff_dev_select(9), ata_dev_select(9), ata_sff_irq_on(9), ata_sff_tf_load(9), ata_sff_tf_read(9), ata_sff_exec_command(9), ata_tf_to_host(9)
• ata_sff_data_xfer(9), ata_sff_data_xfer32(9), ata_pio_sector(9), ata_pio_sectors(9), atapi_send_cdb(9), __atapi_pio_bytes(9), atapi_pio_bytes(9)
• ata_hsm_ok_in_wq(9), ata_hsm_qc_complete(9), ata_sff_hsm_move(9), ata_sff_qc_issue(9), ata_sff_qc_fill_rtf(9), ata_sff_port_intr(9), ata_sff_interrupt(9)
• ata_sff_freeze(9), ata_sff_thaw(9), ata_sff_prereset(9), ata_devchk(9), ata_sff_dev_classify(9), ata_sff_wait_after_reset(9), ata_sff_softreset(9), sata_sff_hardreset(9)
• ata_sff_postreset(9), ata_sff_drain_fifo(9), ata_sff_error_handler(9), ata_sff_std_ports(9), ata_pci_sff_init_host(9), ata_pci_sff_prepare_host(9), ata_pci_sff_activate_host(9), ata_pci_sff_init_one(9)
• ata_bmdma_fill_sg(9), ata_bmdma_fill_sg_dumb(9), ata_bmdma_qc_prep(9), ata_bmdma_dumb_qc_prep(9), ata_bmdma_qc_issue(9), ata_bmdma_port_intr(9), ata_bmdma_interrupt(9)
• ata_bmdma_error_handler(9), ata_bmdma_post_internal_cmd(9), ata_bmdma_irq_clear(9), ata_bmdma_setup(9), ata_bmdma_start(9), ata_bmdma_stop(9), ata_bmdma_status(9)
• ata_bmdma_port_start(9), ata_bmdma_port_start32(9), ata_pci_bmdma_clear_simplex(9), ata_pci_bmdma_init(9), ata_pci_bmdma_prepare_host(9), ata_pci_bmdma_init_one(9), ata_sff_port_init(9)

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mwah 💋 — this page comes from source ./drivers/ata, dated October 2026, and it's the ata_sff_lost_interrupt(9) manual page. byeee bestie 💅