ata_sff_exec_command(9)

okay bestie, welcome to the ata_sff_exec_command(9) page from the Kernel API Manual — manual name folded in right here at the top, because we are not doing boring header-line cosplay today. 💅✨

💖 NAME 💖

ata_sff_exec_command — issue ATA command to host controller. yes, that is literally the whole job, and it ate. 👑

⚡ SYNOPSIS ⚡

void ata_sff_exec_command (struct ata_port *ap , const struct
       ata_taskfile *tf );

🎀 ARGUMENTS 🎀

• ap — the port to which the command is being issued. that's the destination, bestie. 📍
• tf — the ATA taskfile register set. the whole taskfile vibe. 🗂️

✨ DESCRIPTION ✨

It issues the ATA command, with proper synchronization with interrupt handler / other threads. like, it does the command and also does the little synchronization dance so the interrupt handler / other threads don't get weird about it. no cap. 🩰

LOCKING: spin_lock_irqsave(host lock) — that's the lock situation, and it is exactly that. 🔒

🦋 SEE ALSO 🦋

Kernel file ./drivers/ata/libata-sff.c — that's the source file, and then the whole SEE ALSO squad pulls up:

• 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_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_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)

mwah 💋 this little love letter lives in ./drivers/ata, dated October 2026, and the page is ata_sff_exec_command(9). bye bestie, go issue that ATA command with proper synchronization 🫶🌈