qla4xxx_probe_adapter(9)

💅 qla4xxx_probe_adapter(9) — Kernel API Manual, bestie edition

okay so this is a page from the Kernel API Manual, and it's about qla4xxx_probe_adapter, which is genuinely the moment the driver goes "hiiii 👋 is there a card in here??" So grab your iced coffee 🍓 and let's get into it.

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✨ NAME ✨

qla4xxx_probe_adapter — the callback function that probes an HBA 🫶 (yes, "probe," like the driver is doing a little vibe check on the hardware)

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🌸 SYNOPSIS 🌸

int qla4xxx_probe_adapter (struct pci_dev *pdev , const struct
       pci_device_id *ent );

That's the whole thing. Two args, one int out. Iconic, honestly. ✨

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🎀 ARGUMENTS 🎀

• pdev — pointer to a pci_dev structure 💖 (this is the device, the whole device, and nothing but the device)
• ent — pointer to a pci_device entry 🦋 (the ID entry that matched, i.e. the "omg that's you" receipt)

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🔥 DESCRIPTION 🔥

So what does this routine actually do? It probes for Qlogic 4xxx iSCSI host adapters. That's the whole main-character job. 💅

It returns zero if successful — that's the good ending, the "slay" ending, the zero-is-a-win situation. And it also initializes all the data necessary for the driver, so everything the driver needs to exist later gets set up right here. Like packing your whole bag before a trip. 🧳✨

No cap, that's it. Simple on the outside, doing a lot on the inside. The way that a two-argument function can do all that? Obsessed.

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🌈 SEE ALSO 🌈

And now the friend-group roll call 💖 — everybody the driver hangs out with lives in the kernel file ./drivers/scsi/qla4xxx/ql4_os.c, and here's the whole squad, in order, fr fr:

• qla4xxx_create_chap_list(9)
• qla4xxx_find_free_chap_index(9)
• qla4xxx_set_chap_entry(9)
• qla4xxx_mark_all_devices_missing(9)
• qla4xxx_queuecommand(9)
• qla4xxx_mem_free(9)
• qla4xxx_mem_alloc(9)
• qla4_8xxx_check_temp(9)
• qla4_8xxx_check_fw_alive(9)
• qla4_8xxx_watchdog(9)
• qla4xxx_timer(9)
• qla4xxx_cmd_wait(9)
• qla4xxx_soft_reset(9)
• qla4xxx_abort_active_cmds(9)
• qla4xxx_recover_adapter(9)
• qla4xxx_do_dpc(9)
• qla4xxx_free_adapter(9)
• qla4xxx_get_bidi_chap(9)
• qla4xxx_check_existing_isid(9)
• qla4xxx_update_isid(9)
• qla4xxx_should_update_isid(9)
• qla4xxx_is_flash_ddb_exists(9)
• qla4xxx_remove_failed_ddb(9)
• qla4xxx_sysfs_ddb_is_non_persistent(9)
• qla4xxx_sysfs_ddb_tgt_create(9)
• qla4xxx_sysfs_ddb_add(9)
• qla4xxx_sysfs_ddb_apply(9)
• qla4xxx_sysfs_ddb_login(9)
• qla4xxx_sysfs_ddb_logout_sid(9)
• qla4xxx_sysfs_ddb_logout(9)
• qla4xxx_sysfs_ddb_set_param(9)
• qla4xxx_sysfs_ddb_delete(9)
• qla4xxx_sysfs_ddb_export(9)
• qla4xxx_build_ddb_list(9)
• qla4xxx_wait_login_resp_boot_tgt(9)
• qla4xxx_prevent_other_port_reinit(9)
• qla4xxx_remove_adapter(9)
• qla4xxx_config_dma_addressing(9)
• qla4xxx_del_from_active_array(9)
• qla4xxx_eh_wait_on_command(9)
• qla4xxx_wait_for_hba_online(9)
• qla4xxx_eh_wait_for_commands(9)
• qla4xxx_eh_abort(9)
• qla4xxx_eh_device_reset(9)
• qla4xxx_eh_target_reset(9)
• qla4xxx_is_eh_active(9)
• qla4xxx_eh_host_reset(9)
• qla4xxx_pci_mmio_enabled(9)

That's forty-eight functions, bestie. Forty-eight. Not me counting them twice to be sure 😭🔢 — the whole extended friend group showed up to the group chat.

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and that's the page! 🎀 this one's from the directory ./drivers/scsi/qla4xxx, dated October 2026, and it's the qla4xxx_probe_adapter(9) manual page — go probe something, ily, bye 💜🦋