lpfc_debugfs_nodelist_open(9)

💅 lpfc_debugfs_nodelist_open(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's all about opening the nodelist debugfs file, and honestly it's giving "small function, big responsibilities" energy 🎀

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🌸 NAME 🌸

lpfc_debugfs_nodelist_open — literally just opens the nodelist debugfs file 🦋 that's the whole vibe, no cap

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✨ SYNOPSIS ✨

int lpfc_debugfs_nodelist_open (struct inode *inode , struct file *file );

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🫶 ARGUMENTS 🫶

• inode — the inode pointer, and plot twist 👑 it's the one holding a vport pointer inside it
• file — the file pointer where the log output gets attached, that's its whole job 💅

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💖 DESCRIPTION 💖

so this routine is the entry point for the debugfs open file operation 🔥 like, when someone opens this file, this is the main character that shows up first 🌈

the way it works: it grabs the vport out of the i_private field in inode (iykyk), allocates the buffer it needs for the log, fills that buffer up from the in-memory log for this vport, and then returns a pointer to that log in the private_data field in file 🧚✨ four steps, zero wasted motion, we love a clean pipeline 💜

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👑 RETURN 👑

returns zero if it ate and everything worked 🎀 but if something goes wrong it'll hand back a negative error value 😭 so like, check it, bestie

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🌟 SEE ALSO 🌟

the kernel file that's literally the source of truth:

• ./drivers/scsi/lpfc/lpfc_debugfs.c

and the whole friend group 💀 (yes, all of them, I'm not skipping a single one, that would be disrespectful):

• lpfc_debugfs_disc_trc_data(9)
• lpfc_debugfs_slow_ring_trc_data(9)
• lpfc_debugfs_hbqinfo_data(9)
• lpfc_debugfs_commonxripools_data(9)
• lpfc_debugfs_multixripools_data(9)
• lpfc_debugfs_lockstat_data(9)
• lpfc_debugfs_dumpHBASlim_data(9)
• lpfc_debugfs_dumpHostSlim_data(9)
• lpfc_debugfs_nodelist_data(9)
• lpfc_debugfs_nvmestat_data(9)
• lpfc_debugfs_scsistat_data(9)
• lpfc_debugfs_ioktime_data(9)
• lpfc_debugfs_nvmeio_trc_data(9)
• lpfc_debugfs_hdwqstat_data(9)
• lpfc_debugfs_disc_trc(9)
• lpfc_debugfs_slow_ring_trc(9)
• lpfc_debugfs_nvme_trc(9)
• lpfc_debugfs_disc_trc_open(9)
• lpfc_debugfs_slow_ring_trc_open(9)
• lpfc_debugfs_hbqinfo_open(9)
• lpfc_debugfs_multixripools_open(9)
• lpfc_debugfs_lockstat_open(9)
• lpfc_debugfs_ras_log_open(9)
• lpfc_debugfs_dumpHBASlim_open(9)
• lpfc_debugfs_dumpHostSlim_open(9)
• lpfc_debugfs_lseek(9)
• lpfc_debugfs_read(9)
• lpfc_debugfs_release(9)
• lpfc_debugfs_multixripools_write(9)
• lpfc_idiag_cmd_get(9)
• lpfc_idiag_open(9)
• lpfc_idiag_release(9)
• lpfc_idiag_cmd_release(9)
• lpfc_idiag_pcicfg_read(9)
• lpfc_idiag_pcicfg_write(9)
• lpfc_idiag_baracc_read(9)
• lpfc_idiag_baracc_write(9)
• lpfc_idiag_queinfo_read(9)
• lpfc_idiag_que_param_check(9)
• lpfc_idiag_queacc_read_qe(9)
• lpfc_idiag_queacc_read(9)
• lpfc_idiag_queacc_write(9)
• lpfc_idiag_drbacc_read_reg(9)
• lpfc_idiag_drbacc_read(9)
• lpfc_idiag_drbacc_write(9)
• lpfc_idiag_ctlacc_read_reg(9)
• lpfc_idiag_ctlacc_read(9)
• lpfc_idiag_ctlacc_write(9)
• lpfc_idiag_mbxacc_get_setup(9)
• lpfc_idiag_mbxacc_read(9)
• lpfc_idiag_mbxacc_write(9)
• lpfc_idiag_extacc_avail_get(9)
• lpfc_idiag_extacc_alloc_get(9)
• lpfc_idiag_extacc_drivr_get(9)
• lpfc_idiag_extacc_write(9)
• lpfc_idiag_extacc_read(9)
• lpfc_debugfs_initialize(9)
• lpfc_debugfs_terminate(9)
• lpfc_debug_dump_all_queues(9)

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okay that's the whole page, you're officially educated 💅✨

this lil icon lives over in ./drivers/scsi/lpfc, brought to you by October 2026 (yes, from the future, we don't question it 🦋), and the page itself is lpfc_debugfs_nodelist_open(9) — go forth and open those debugfs files, bestie, ily 🫶🎀