qla4xxx_sysfs_ddb_apply(9)

🌸 qla4xxx_sysfs_ddb_apply — the kernel API manual, but make it make sense 🌸

okay so bestie, welcome to the qla4xxx_sysfs_ddb_apply(9) page 💅 this one's from the Kernel API Manual, and it's honestly kind of a short one — but it's important, so pay attention 🫶

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✨ NAME ✨

qla4xxx_sysfs_ddb_apply — write the target ddb contents to Flash 🔥

literally what it says on the tin, bestie. the contents? they go to Flash. periodt.

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🌈 SYNOPSIS 🌈

int  qla4xxx_sysfs_ddb_apply (struct iscsi_bus_flash_session *fnode_sess
, struct iscsi_bus_flash_conn *fnode_conn );

it's giving "returns an int," and it takes two little pointer besties 🎀 copy that exactly, no cap.

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🎀 ARGUMENTS 🎀

• fnode_sess — pointer to session attrs of flash ddb entry 🦋 (the session side of the vibe, basically)
• fnode_conn — pointer to connection attrs of flash ddb entry ✨ (and this one's the connection side)

both of them? pointers. both of them? to attrs of the flash ddb entry. iykyk 💖

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💜 DESCRIPTION 💜

okay so here's the tea, and it's actually really simple: this function writes the contents of the target ddb buffer to Flash — with a valid cookie value — in order to make the ddb entry persistent 💅

a valid cookie value. that's the whole main character of this operation, ngl. no cookie, no persistence. the cookie is what makes it stick around instead of vanishing into the void 😭 so like, that's the point of the whole thing: make it persistent. fr fr.

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🧚 SEE ALSO 🧚

the kernel file lives at ./drivers/scsi/qla4xxx/ql4_os.c and bestie, there are SO many siblings. here's the whole family, no skips, no "and friends" hand-waving 🙈

• 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_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_probe_adapter(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)

like i said. the whole family. ate 💅

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and that's the page, bestie!! 🫶 quick lil sign-off: this one lives in the source tree at ./drivers/scsi/qla4xxx, and it's dated October 2026 — so yeah, future-core of it all ✨ go make those ddb entries persistent, you've got this 💖🎀🦋