megasas_allo..._dma_buffers(9)

💅 megasas_alloc_ctrl_dma_buffers(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one is a tiny little baby function page (like, three facts total) but the SEE ALSO section is enormous, so buckle up 🎀

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✨ NAME ✨

megasas_alloc_ctrl_dma_buffers — it allocates consistent DMA buffers during driver load time 🫶 that's the whole personality. no cap.

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✨ SYNOPSIS ✨

int megasas_alloc_ctrl_dma_buffers (struct megasas_instance *instance );

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✨ ARGUMENTS ✨

• instance — the Adapter soft instance 🌸 that's it. that's the entire parameter list. she's low maintenance, she's iconic.

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✨ RETURN ✨

Returns O for SUCCESS ⭐

and yes, the docs literally say O — capital letter O, not zero 😭 i'm not fixing it, i'm just reporting it fr fr. it says O. that's the vibe check result. O. 💀

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✨ SEE ALSO ✨

okay this is the part where the page goes absolutely feral 🔥 ninety-four references, no notes, main character energy. grouping them by squad so you can actually find stuff:

• the setup squad: megasas_set_dma_settings(9), megasas_get_cmd(9), megasas_return_cmd(9), megasas_decode_evt(9)
• the xscale crew 🌈: megasas_enable_intr_xscale(9), megasas_disable_intr_xscale(9), megasas_read_fw_status_reg_xscale(9), megasas_clear_intr_xscale(9), megasas_fire_cmd_xscale(9), megasas_adp_reset_xscale(9), megasas_check_reset_xscale(9)
• the ppc crew 🦋: megasas_enable_intr_ppc(9), megasas_disable_intr_ppc(9), megasas_read_fw_status_reg_ppc(9), megasas_clear_intr_ppc(9), megasas_fire_cmd_ppc(9), megasas_check_reset_ppc(9)
• the skinny crew 🧚: megasas_enable_intr_skinny(9), megasas_disable_intr_skinny(9), megasas_read_fw_status_reg_skinny(9), megasas_clear_intr_skinny(9), megasas_fire_cmd_skinny(9), megasas_check_reset_skinny(9)
• the gen2 crew 👑: megasas_enable_intr_gen2(9), megasas_disable_intr_gen2(9), megasas_read_fw_status_reg_gen2(9), megasas_clear_intr_gen2(9), megasas_fire_cmd_gen2(9), megasas_adp_reset_gen2(9), megasas_check_reset_gen2(9)
• issuing commands: megasas_issue_polled(9), megasas_issue_blocked_cmd(9), megasas_issue_blocked_abort_cmd(9)
• sgl + building stuff: megasas_make_sgl32(9), megasas_make_sgl64(9), megasas_make_sgl_skinny(9), megasas_build_dcdb(9), megasas_build_ldio(9), megasas_cmd_type(9), megasas_queue_command(9)
• completion + timers: megasas_complete_cmd_dpc(9), megasas_start_timer(9), megasas_wait_for_outstanding(9), megasas_generic_reset(9), megasas_reset_timer(9)
• the dump girls 🌸: megasas_dump(9), megasas_dump_reg_set(9), megasas_dump_fusion_io(9)
• resets + aborts + bios: megasas_reset_bus_host(9), megasas_task_abort(9), megasas_reset_target(9), megasas_bios_param(9)
• aen + isr besties 🎀: megasas_service_aen(9), megasas_complete_int_cmd(9), megasas_complete_abort(9), megasas_complete_cmd(9), megasas_issue_pending_cmds_again(9), megasas_deplete_reply_queue(9), megasas_isr(9)
• ready + frame pools: megasas_transition_to_ready(9), megasas_teardown_frame_pool(9), megasas_create_frame_pool(9), megasas_free_cmds(9), megasas_alloc_cmds(9)
• querying the controller: megasas_ld_list_query(9), megasas_host_device_list_query(9), megasas_get_ctrl_info(9), megasas_issue_init_mfi(9)
• irqs, jbod + fw init 💜: megasas_setup_irqs_msix(9), megasas_setup_jbod_map(9), megasas_get_device_list(9), megasas_set_high_iops_queue_affinity_and_hint(9), megasas_alloc_irq_vectors(9), megasas_init_fw(9), megasas_release_mfi(9)
• seq nums, aen registration + dma masking: megasas_get_seq_num(9), megasas_register_aen(9), megasas_start_aen(9), megasas_io_attach(9), megasas_set_dma_mask(9), megasas_alloc_ctrl_mem(9)
• the whole lifecycle, honestly: megasas_probe_one(9), megasas_flush_cache(9), megasas_shutdown_controller(9), megasas_suspend(9), megasas_resume(9), megasas_detach_one(9), megasas_shutdown(9)
• mgmt ioctls + device list wrangling: megasas_mgmt_fw_ioctl(9), megasas_mgmt_ioctl(9), megasas_update_device_list(9), megasas_add_remove_devices(9), megasas_init(9), megasas_exit(9)

and the kernel file herself, iykyk: ./drivers/scsi/megaraid/megaraid_sas_base.c 🌱

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and that's the page!! short synopsis, gigantic friend group, we stan 💖

sign-off time 🫶 this cutie lives in ./drivers/scsi/megaraid, dated October 2026, and answers to the name megasas_allo..._dma_buffers(9) (yes the header truncates it, yes it's still her). mwah 💋✨