ata_bmdma_interrupt(9)

💅 ata_bmdma_interrupt — like, the whole page

Bestie, buckle up, because this is ata_bmdma_interrupt(9) from the Kernel API Manual and it's honestly iconic in a "quietly holds the entire IDE stack together" kinda way. ✨

Also lowkey important: this whole thing lives in the kernel file ./drivers/ata/libata-sff.c, so that's the vibe-check location. 🫶

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✨ NAME ✨

ata_bmdma_interrupt — the default BMDMA ATA host interrupt handler. Like the default one. The one that shows up when nobody more specific did. Main character energy fr fr. 👑

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🎀 SYNOPSIS 🎀

irqreturn_t ata_bmdma_interrupt (int irq , void *dev_instance );

That's it. That's the whole signature. Look at her go. 💖

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🌸 ARGUMENTS 🌸

• irq — the irq line. And here's the tea: it's unused. Literally just vibing there in the parameter list, doing nothing, but we love her anyway. 💀
• dev_instance — pointer to our ata_host information structure. This one actually matters. It's the whole personality of the call. 🦋

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💜 DESCRIPTION 💜

Okay so: this is the default interrupt handler for PCI IDE devices. When an interrupt comes knocking, this is who answers the door. 🚪✨

What does she do with it? She calls ata_bmdma_port_intr for each port that is not disabled. That's the whole job. Port by port, no cap. Every non-disabled port gets her attention, and disabled ones get left on read. 🙈

LOCKING: obtains the host lock during operation. Not optional, not vibes-based — she takes the host lock, does her thing, and that's periodt. 🔒

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🔥 RETURN 🔥

She returns IRQ_NONE or IRQ_HANDLED. Two options, both valid, both real. No in-between, bestie. ⭐

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🌈 SEE ALSO 🌈

Grab a snack, this list is long and every single one of these is a real reference, so here we go — the whole squad from ./drivers/ata/libata-sff.c, in order, exactly as listed:

• 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_lost_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_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)

Like I said. The whole squad. Obsessed, honestly. 🧚

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That's the page, bestie — go forth and interrupt responsibly. Slay. 💅

Sign-off vibes: this one comes from ./drivers/ata, dated October 2026, and it's living its best life in the Kernel API Manual. Catch you on the next port. 🍓