megaraid_sys...oc_resources(9)
β¨ NAME β¨
megaraid_sysfs_alloc_resources β allocate sysfs related resources π
(straight out of the Kernel API Manual, section 9, bestie β yes we're in the deep kernel lore today)
π¦ SYNOPSIS π¦
int megaraid_sysfs_alloc_resources (adapter_t *adapter );
πΈ ARGUMENTS πΈ
adapterβ the controller's soft state. it's the driver's own cozy little state blob for that adapter, and honestly it's the main character of this whole function π«Ά
π DESCRIPTION π
okay so picture this: the sysfs attributes can get read at literally any moment, and when they do, the driver has to go talk to the FW (firmware, iykyk) to pull up-to-date information. no stale vibes allowed, periodt. πβ¨
So this function allocates the packets you need in order to issue those FW calls whenever the sysfs attributes are read. those attributes straight up require fresh info from the FW, so the packets have to be ready and waiting like a bestie who's already got her shoes on.
It also sets up the resources for mutual exclusion, so that these resources and the wait queue can be shared without everybody trampling each other. it's giving "one bathroom, five people, we need a lock" energy ππ
Returns 0 on success. Returns -ERROR_CODE on failure. π
ngl, that -ERROR_CODE is doing a lot of heavy lifting as a placeholder β but that's literally what the page says, so that's what we're saying too. no cap.
π SEE ALSO π
the whole megaraid extended family, plus the kernel file it lives in β ./drivers/scsi/megaraid/megaraid_mbox.c β and every single one of these icons, in order, no skipping π:
megaraid_init(9)megaraid_exit(9)megaraid_probe_one(9)megaraid_detach_one(9)megaraid_mbox_shutdown(9)megaraid_io_attach(9)megaraid_io_detach(9)megaraid_init_mbox(9)megaraid_fini_mbox(9)megaraid_alloc_cmd_packets(9)megaraid_free_cmd_packets(9)megaraid_mbox_setup_dma_pools(9)megaraid_mbox_teardown_dma_pools(9)megaraid_alloc_scb(9)megaraid_dealloc_scb(9)megaraid_mbox_mksgl(9)mbox_post_cmd(9)megaraid_queue_command_lck(9)megaraid_mbox_build_cmd(9)megaraid_mbox_runpendq(9)megaraid_mbox_prepare_pthru(9)megaraid_mbox_prepare_epthru(9)megaraid_ack_sequence(9)megaraid_isr(9)megaraid_mbox_dpc(9)megaraid_abort_handler(9)megaraid_reset_handler(9)mbox_post_sync_cmd(9)mbox_post_sync_cmd_fast(9)megaraid_busywait_mbox(9)megaraid_mbox_product_info(9)megaraid_mbox_extended_cdb(9)megaraid_mbox_support_ha(9)megaraid_mbox_support_random_del(9)megaraid_mbox_get_max_sg(9)megaraid_mbox_enum_raid_scsi(9)megaraid_mbox_flush_cache(9)megaraid_mbox_fire_sync_cmd(9)megaraid_mbox_display_scb(9)megaraid_mbox_setup_device_map(9)megaraid_cmm_register(9)megaraid_cmm_unregister(9)megaraid_mbox_mm_handler(9)megaraid_mbox_mm_command(9)megaraid_mbox_mm_done(9)gather_hbainfo(9)megaraid_sysfs_free_resources(9)megaraid_sysfs_get_ldmap_done(9)megaraid_sysfs_get_ldmap_timeout(9)megaraid_sysfs_get_ldmap(9)megaraid_mbox_app_hndl_show(9)megaraid_mbox_ld_show(9)
like I said. the whole family reunion π
that's the page, bestie β sourced from ./drivers/scsi/megaraid, dated October 2026. go forth and allocate responsibly π§ββοΈπ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms