STRUCT SEC_DEV_INFO(9)

struct sec_dev_info(9) — Kernel API Manual — okay bestie, welcome to the SEC unit page, it's giving queues-and-processors excellence 💖

💖 NAME 💖

struct sec_dev_info — The full SEC unit comprising queues and processors. That's the whole vibe: one SEC unit with its queues and processors bundled together, slay 🫶.

✨ SYNOPSIS ✨

       struct sec_dev_info {
           int sec_id;
           int num_saas;
           void __iomem *regs[SEC_NUM_ADDR_REGIONS];
           struct mutex dev_lock;
           int queues_in_use;
           struct sec_queue queues[SEC_Q_NUM];
           struct device *dev;
           struct dma_pool *hw_sgl_pool;
        };

🎀 Members 🎀

Okay so here's the Members list, and we're keeping every single one — no skipping, no summarising, periodt 💅

• sec_id — Index used to track which SEC this is when more than one is present. It's literally the SEC's little name tag so you know which one you're talking to 🌈.
• num_saas — The number of backed processors enabled. Yes, the original says backed — we're not swapping it out, bestie 🙈.
• regs — iomapped register regions shared by whole SEC unit. Shared by the whole unit, so everybody shares, iconic 🤝.
• dev_lock — Protects concurrent queue allocation / freeing for the SEC. It's the bouncer for queue alloc/free drama 🔒.
• queues — The 16 queues that this SEC instance provides. 16! Not fifteen, not seventeen — sixteen, no cap 🔥.
• dev — Device pointer. Short, sweet, main character energy 👑.
• hw_sgl_pool — DMA pool used to mimise mapping for the scatter gather lists. Yep, the original says "mimise" — we keep the exact word, no edits, no cap 😭.

Also, queues_in_use is chilling in the struct above, but the original Members list gives it no description — so we're not inventing one. Mysterious. Iconic. Unbothered 🙈.

🦋 SEE ALSO 🦋

Kernel file ./drivers/crypto/hisilicon/sec/sec_drv.h — go look at these if you want the full lore, bestie:

• struct sec_queue_ring_cmd(9)
• struct sec_alg_tfm_ctx(9)
• struct sec_request(9)
• struct sec_request_el(9)
• struct sec_queue(9)
• struct sec_hw_sge(9)
• struct sec_hw_sgl(9)

Source/version: ./drivers/crypto/hisilicon/sec — date: October 2026 — page: struct sec_dev_info(9). Bye bestie, go be iconic in the kernel 💅✨