mpi3mr_expander_add(9)

💖 mpi3mr_expander_add(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's mpi3mr_expander_add(9) and it's literally the glow-up moment for an expander object ✨

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🎀 NAME 🎀

mpi3mr_expander_add — Create expander object

like... it makes the expander. that's the whole vibe 💅

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🌸 SYNOPSIS 🌸

int mpi3mr_expander_add (struct mpi3mr_ioc *mrioc , u16 handle );

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🦋 ARGUMENTS 🦋

• mrioc — Adapter instance reference. it's your main character adapter, the one holding all the context 🫶
• handle — Expander firmware device handle. yes queen, the firmware's own lil ID for the device 🔥

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🧚 DESCRIPTION 🧚

so the way this works: this function creates the expander object, stores it in sas_expander_list, and then exposes it to the SAS transport layer. it's giving "made in the back, debuted on the runway" 💫

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⭐ RETURN ⭐

0 for success, non-zero for failure. not me crying over a nonzero return value 😭

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👑 SEE ALSO 👑

💜 the file itself

• Kernel file ./drivers/scsi/mpi3mr/mpi3mr_transport.c

🌈 the whole friend group (yes, all of them, no skips)

• mpi3mr_post_transport_req(9), mpi3mr_report_manufacture(9), __mpi3mr_expander_find_by_handle(9), mpi3mr_is_expander_device(9), mpi3mr_get_sas_address(9), __mpi3mr_get_tgtdev_by_addr(9), mpi3mr_get_tgtdev_by_addr(9), mpi3mr_remove_device_by_sas_address(9), __mpi3mr_get_tgtdev_by_addr_and_rphy(9), mpi3mr_expander_find_by_sas_address(9), __mpi3mr_sas_node_find_by_sas_address(9), mpi3mr_parent_present(9), mpi3mr_convert_phy_link_rate(9), mpi3mr_delete_sas_phy(9), mpi3mr_add_sas_phy(9), mpi3mr_add_phy_to_an_existing_port(9), mpi3mr_delete_sas_port(9), mpi3mr_del_phy_from_an_existing_port(9), mpi3mr_sas_port_sanity_check(9), mpi3mr_set_identify(9), mpi3mr_add_host_phy(9), mpi3mr_add_expander_phy(9), mpi3mr_alloc_hba_port(9), mpi3mr_get_hba_port_by_id(9), mpi3mr_update_links(9), mpi3mr_sas_host_refresh(9), mpi3mr_sas_host_add(9), mpi3mr_sas_port_add(9), mpi3mr_sas_port_remove(9), struct host_port(9), mpi3mr_update_mr_sas_port(9), mpi3mr_refresh_sas_ports(9), mpi3mr_refresh_expanders(9), mpi3mr_expander_node_add(9), mpi3mr_expander_node_remove(9), mpi3mr_expander_remove(9), mpi3mr_get_sas_negotiated_logical_linkrate(9), mpi3mr_report_tgtdev_to_sas_transport(9), mpi3mr_remove_tgtdev_from_sas_transport(9), mpi3mr_get_port_id_by_sas_phy(9), mpi3mr_get_port_id_by_rphy(9), mpi3mr_get_expander_phy_error_log(9), mpi3mr_transport_get_linkerrors(9), mpi3mr_transport_get_enclosure_identifier(9), mpi3mr_transport_get_bay_identifier(9), mpi3mr_expander_phy_control(9), mpi3mr_transport_phy_reset(9), mpi3mr_transport_phy_enable(9), mpi3mr_transport_phy_speed(9), mpi3mr_map_smp_buffer(9), mpi3mr_unmap_smp_buffer(9), mpi3mr_transport_smp_handler(9)

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ok that's the whole page, no notes, go read the source bestie 🫶

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k bye, this was ./drivers/scsi/mpi3mr, from October 2026, and yes it's still mpi3mr_expander_add(9) — mwah 💋✨