STRUCT QCE_SHA_REQCTX(9)

🦋 NAME 🦋

okay so bestie, welcome to struct qce_sha_reqctx(9) — this is the little struct from the Kernel API Manual that holds private ahash objects per request 💅 like, it's literally the per-request hidey-hole for sha stuff and it's iconic for it.

✨ SYNOPSIS ✨

struct qce_sha_reqctx {
    u8 buf[QCE_SHA_MAX_BLOCKSIZE];
    u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE];
    u8 digest[QCE_SHA_MAX_DIGESTSIZE];
    unsigned int buflen;
    unsigned long flags;
    struct scatterlist *src_orig;
    unsigned int nbytes_orig;
    int src_nents;
    __be32 byte_count[2];
    u64 count;
    bool first_blk;
    bool last_blk;
    struct scatterlist sg[2];
    u8 *authkey;
    unsigned int authklen;
    struct scatterlist result_sg;
};

no cap, that's the whole vibe right there 🫶

🎀 MEMBERS 🎀

okay bestie, time for the member-by-member vibe check, every single one, no skipping 👑

• buf — used during update, import and export. like, it's booked and busy in all three phases fr fr 💖
• tmpbuf — buffer for internal use. the private little scratch space, we don't ask questions 🌸
• digest — calculated digest buffer. this is where the actual digest ends up living ✨
• buflen — length of the buffer. the buffer's length, she's exactly what she says on the tin 💅
• flags — operation flags. the little flag field for the operation, lowkey essential 🦋
• src_orig — original request sg list. the source scatterlist from the original request, preserved 💜
• nbytes_orig — original request number of bytes. the byte count of the original request, kept safe 🙈
• src_nents — source number of entries. how many entries the source has 🍓
• byte_count — byte count. it's giving exactly that 🎀
• count — save count in states during update, import and export. yes she also shows up in update, import and export, main character energy for real ⭐
• first_blk — is it the first block. a whole bool dedicated to that question 💀
• last_blk — is it the last block. same energy, opposite end 🔥
• sg — used to chain sg lists. the scatterlist chaining girlie 🌈
• authkey — pointer to auth key in sha ctx. just a pointer, pointing respectfully 🫶
• authklen — auth key length. the length of that auth key, periodt 👑
• result_sg — scatterlist used for result buffer. the scatterlist for the result buffer, and that's the whole tea 🧚

💜 SEE ALSO 💜

• Kernel file ./drivers/crypto/qce/sha.h — go read it bestie, iykyk 💖

and that's the page!! sign-off time: this lil beauty lives under ./drivers/crypto/qce and the date on it is October 2026 — slay, ate, no crumbs 🌟💅