STRUCT OCS_AES_TCTX(9)

💖 struct ocs_aes_tctx(9) 💖

okay so bestie, welcome to the glow-up era of the Linux Kernel API Manual ✨ — we're looking at struct ocs_aes_tctx, which is literally the OCS AES Transform context. no cap, that's the whole vibe of this page. it's the transform context. for OCS AES. iconic behavior tbh 🎀

✨ SYNOPSIS ✨

she's structured like this, bestie — copy her exactly, don't touch a single character 🫶

struct ocs_aes_tctx {
    struct ocs_aes_dev *aes_dev;
    u8 key[OCS_AES_KEYSIZE_256];
    unsigned int key_len;
    enum ocs_cipher cipher;
    union {
      struct crypto_sync_skcipher *sk;
      struct crypto_aead *aead;
    } sw_cipher;
    bool use_fallback;
 };

🌸 Members 🌸

full cast list, main character energy only 🌈:

• aes_dev — the OCS AES device itself. the whole point, honestly 👑
• key — the AES/SM4 key. keep it secret, keep it safe, iykyk 🔐
• key_len — the length (in bytes) of key. yes, in bytes, don't get cute 💅
• cipher — the OCS cipher to use, and it's either AES or SM4. that's the whole menu, bestie 🍓
• sw_cipher — the cipher to use as fallback. this is a union, and it's giving "choose one" — either struct crypto_sync_skcipher *sk or struct crypto_aead *aead ✨
• use_fallback — whether or not the fallback cipher should be used. a simple bool, a simple queen 🦋

🔥 SEE ALSO 🔥

go touch grass in these, fr fr:

• Kernel file ./drivers/crypto/intel/keembay/keembay-ocs-aes-core.c
• struct ocs_aes_rctx(9)
• kmb_ocs_aead_dma_prepare(9)

ngl bestie, this whole struct lives in ./drivers/crypto/intel/keembay — that's the address, don't lose it 💀

okay that's the page!! sourced fresh from the kernel manual life under ./drivers/crypto/intel/keembay, dated October 2026 — yes, the future, she's ahead of her time ⭐💜 slay, go read the source, ily, bye 🧚💖