STRUCT PDS_CORE_HOST_MEM_COMP(9)

💖 STRUCT PDS_CORE_HOST_MEM_COMP (9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — we're looking at struct pds_core_host_mem_comp today, and the whole point of this little guy is the HOST_MEM completion. that's it, that's the vibe. it's the thing that comes back at you when the whole memory-request saga is done 🎀

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✨ SYNOPSIS ✨

here's the shape of it, copied exactly because we do not mess with the source 👑

struct pds_core_host_mem_comp {
    u8 status;
    u8 oper;
    __le16 count;
    __le32 size;
    __le16 tag;
    u8 rsvd[6];
 };

no cap, that's the entire struct. six fields, one of them is just vibes (reserved) 🦋

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🌸 MEMBERS 🌸

• status — the status of the command, and it's an enum pds_core_status_code. so like, how did it go? this field is the group chat reply 💅
• oper — the operation that was performed. which move did we actually make, y'know?
• count — how many memory requests there were (this one's for GET_COUNT) 🔥
• size — the size of the memory request, in bytes (this one's for QUERY) ⭐
• tag — the tag for this memory request (used by QUERY/DEL). it's the lil name tag so everybody knows which request is which 🎀
• rsvd — reserved. it's giving "do not touch", so don't 🙈

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🌈 SEE ALSO 🌈

this list is long bestie, i'm not gonna lie to you, but every single one of these is iconic in its own right and you're gonna want the whole roster 💜

the kernel file it lives in: ./include/linux/pds/pds_core_if.h

and the whole friend group:

• struct pds_core_drv_identity(9)
• enum pds_core_dev_capability(9)
• struct pds_core_dev_identity(9)
• struct pds_core_dev_identify_cmd(9)
• struct pds_core_dev_identify_comp(9)
• struct pds_core_dev_reset_cmd(9)
• struct pds_core_dev_reset_comp(9)
• struct pds_core_dev_init_cmd(9)
• struct pds_core_dev_init_comp(9)
• struct pds_core_fw_download_cmd(9)
• struct pds_core_fw_download_comp(9)
• enum pds_core_fw_control_oper(9)
• enum pds_core_fw_slot(9)
• struct pds_core_fw_control_cmd(9)
• struct pds_core_fw_control_comp(9)
• enum pds_core_vf_link_status(9)
• struct pds_core_vf_setattr_cmd(9)
• struct pds_core_vf_getattr_cmd(9)
• struct pds_core_vf_ctrl_cmd(9)
• struct pds_core_vf_ctrl_comp(9)
• struct pds_core_send_pkg_data_cmd(9)
• struct pds_core_send_pkg_data_comp(9)
• struct pds_core_component_tbl(9)
• struct pds_core_send_component_tbl_cmd(9)
• struct pds_core_send_component_tbl_comp(9)
• enum pds_core_send_component_op(9)
• struct pds_core_flash_component(9)
• struct pds_core_send_component_cmd(9)
• struct pds_core_send_component_comp(9)
• enum pds_core_fw_component_type(9)
• enum pds_core_component_info_flags(9)
• struct pds_core_fw_component_info(9)
• struct pds_core_component_list_info(9)
• struct pds_core_get_component_info_cmd(9)
• struct pds_core_get_component_info_comp(9)
• struct pds_core_finalize_update_cmd(9)
• struct pds_core_finalize_update_comp(9)
• struct pds_core_match_record_desc_cmd(9)
• struct pds_core_match_record_desc_comp(9)
• enum pds_core_host_mem_oper(9)
• struct pds_core_host_mem_cmd(9)
• struct pds_core_dev_hwstamp_regs(9)
• struct pds_core_dev_info_regs(9)
• struct pds_core_dev_cmd_regs(9)
• struct pds_core_dev_regs(9)

like i said. the whole friend group. read them all, they all slay 💅

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one tiny thing before you go, bestie: this page names the operations with uppercase tokens like GET_COUNT, QUERY and DEL — keep those exact when you write code, don't go lowercase-ing them for the aesthetic 🫶

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and that's the page!! mwah 😭💖 this one came from ./include/linux/pds, and the date on it is October 2026 — so like, technically future-dated, main character energy honestly. go forth and complete your host memory requests, periodt 🌈👑