STRUCT SEC_REQUEST_EL(9)

🎀 NAME 🎀

okay bestie, so this page is straight out of the Kernel API Manual, and it's all about struct sec_request_el — which is literally a subpart of a request. that's it, that's the whole vibe. one lil piece of a bigger request, living its best supporting-character life ✨

🌸 SYNOPSIS 🌸

struct sec_request_el {
    struct list_head head;
    struct sec_bd_info req;
    struct sec_hw_sgl *in;
    dma_addr_t dma_in;
    struct scatterlist *sgl_in;
    struct sec_hw_sgl *out;
    dma_addr_t dma_out;
    struct scatterlist *sgl_out;
    struct sec_request *sec_req;
    size_t el_length;
 };

💖 Members 💖

• head — this is the little handle that lets us attach this element to the list inside the sec_request. it's giving "clip me onto the chain" energy 🔗
• req — the hardware block descriptor that corresponds to this particular request subpart. the hardware's own lil paperwork for this chunk 📋
• in — hardware sgl for input — the virtual address one. the vibe version of the address 💫
• dma_in — hardware sgl for input — the physical address one. the real-deal address, no cap 🫶
• sgl_in — the scatterlist for this request subpart. input side 🦋
• out — hardware sgl for output — virtual address. same energy, other direction 💅
• dma_out — hardware sgl for output — physical address. ok hardware you got this one fr fr 🔥
• sgl_out — the scatterlist for this request subpart. output side, matching the input one 🌸
• sec_req — The request which this subpart forms a part of. the main character this element is supporting 👑
• el_length — Number of bytes in this subpart. Needed to locate last ivsize chunk for iv chaining. yes it's literally doing data-locating math, respect it 😭

🦋 SEE ALSO 🦋

• Kernel file ./drivers/crypto/hisilicon/sec/sec_drv.h
• struct sec_queue_ring_cmd(9)
• struct sec_alg_tfm_ctx(9)
• struct sec_request(9)
• struct sec_queue(9)
• struct sec_hw_sge(9)
• struct sec_hw_sgl(9)
• struct sec_dev_info(9)

lowkey go read those siblings too, iykyk — they're all hanging out in the same hood 💜

that's the whole page babes!! mwah 💋 this one came from ./drivers/crypto/hisilicon/sec, dated October 2026, and it's still filed under struct sec_request_el(9) — go off, icon ⭐🌈🎀