map_persist_bufs(9)

Hi bestie!! 💖 Welcome to map_persist_bufs(9) from the Kernel API Manual — today’s vibe is pre-mapping persistent data for adapter logins, and honestly? It’s giving “set it up now so future you doesn’t cry.” 😭✨

💖 NAME 💖

map_persist_bufs — Pre-map persistent data for adapter logins. That’s the whole name, no cap. 👑

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✨ SYNOPSIS ✨

int map_persist_bufs (struct ibmvscsi_host_data *hostdata );

This is the exact signature, bestie — don’t let anyone “fix” the spacing. 💅

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🌸 ARGUMENTS 🌸

• hostdata — this is the ibmvscsi_host_data of host. Yep, that’s the arg; she’s the main character here. 👑

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🦋 DESCRIPTION 🦋

Okay so this function maps the capabilities and adapter info DMA buffers to avoid runtime failures. It’s literally doing the pre-game so the runtime doesn’t have a meltdown later. 🫶🔥

Return 1 on error, 0 on success. Keep that in mind — 1 is the “nope” vibe, 0 is the “slay” vibe. 💀✨

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🔥 SEE ALSO 🔥

Bestie, there’s a whole extended universe for this one. Kernel file: ./drivers/scsi/ibmvscsi/ibmvscsi.c. 💜

• Kernel file ./drivers/scsi/ibmvscsi/ibmvscsi.c
• ibmvscsi_handle_event(9)
• ibmvscsi_release_crq_queue(9)
• crq_queue_next_crq(9)
• ibmvscsi_send_crq(9)
• ibmvscsi_task(9)
• ibmvscsi_reset_crq_queue(9)
• ibmvscsi_init_crq_queue(9)
• ibmvscsi_reenable_crq_queue(9)
• initialize_event_pool(9)
• release_event_pool(9)
• valid_event_struct(9)
• free_event_struct(9)
• get_event_struct(9)
• init_event_struct(9)
• unmap_cmd_data(9)
• map_sg_data(9)
• map_data_for_srp_cmd(9)
• purge_requests(9)
• ibmvscsi_set_request_limit(9)
• ibmvscsi_reset_host(9)
• ibmvscsi_timeout(9)
• ibmvscsi_send_srp_event(9)
• handle_cmd_rsp(9)
• lun_from_dev(9)
• ibmvscsi_queuecommand_lck(9)
• unmap_persist_bufs(9)
• login_rsp(9)
• send_srp_login(9)
• capabilities_rsp(9)
• send_mad_capabilities(9)
• fast_fail_rsp(9)
• enable_fast_fail(9)
• adapter_info_rsp(9)
• send_mad_adapter_info(9)
• ibmvscsi_eh_host_reset_handler(9)
• ibmvscsi_handle_crq(9)
• ibmvscsi_sdev_configure(9)
• ibmvscsi_change_queue_depth(9)
• ibmvscsi_get_desired_dma(9)
• ibmvscsi_resume(9)

Okay bye bestie! 🫶 This one’s sourced from ./drivers/scsi/ibmvscsi and dated October 2026 — periodt. 💅