ata_sff_qc_fill_rtf(9)

💅 ata_sff_qc_fill_rtf — like, the Kernel API Manual page you actually wanna read

okay so bestie, we're in the Kernel API Manual today and this one's a tiny little function with main character energy. it does exactly one thing and it does it well. periodt. 🎀

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✨ NAME ✨

ata_sff_qc_fill_rtf — fills the result TF using ->sff_tf_read 🦋

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🌸 SYNOPSIS 🌸

void ata_sff_qc_fill_rtf (struct ata_queued_cmd *qc );

that's it. that's the whole signature. no sneaky extra params, no surprises. iykyk 💅

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💖 ARGUMENTS 💖

• qc — the qc whose result TF we're about to fill in. that's literally its whole job, she's a passenger princess on this one 🚗✨

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🔥 DESCRIPTION 🔥

so here's the vibe: qc is finished (like, done done), and its result TF still needs to be filled. the way we fill it? we use ->sff_tf_read. that's it. no cap, that's the entire bit. 🫶

LOCKING: spin_lock_irqsave(host lock) — yeah she's holding the host lock with spin_lock_irqsave, so don't go doing silly things in here, bestie 🙈

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👑 SEE ALSO 👑

the kernel file is ./drivers/ata/libata-sff.c and honestly the whole squad lives there. buckle in, this is a long group chat:

• 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_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_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)

like… name a libata-sff function, she's on the list. obsessed. 🌈⭐

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💀 quick recap for the back row: qc is finished, TF needs filling, use ->sff_tf_read, host lock is held via spin_lock_irqsave. that's the whole post. 🍓

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okay bestie that's the page!! it lives in ./drivers/ata, it's from October 2026, and it's brought to you by the Kernel API Manual — ata_sff_qc_fill_rtf(9), slay, mwah 💜🧚‍♀️