STRUCT QDESFMT0(9)

💅 NAME 💅

okay bestie, welcome to the Kernel API Manual moment for struct qdesfmt0(9) — aka the queue descriptor, format 0. That's the whole vibe. 💖

✨ SYNOPSIS ✨

Here's the literal blueprint, no edits, no cap:

       struct qdesfmt0 {
           dma64_t sliba;
           dma64_t sla;
           dma64_t slsba;
           u32 : 32;
           u32 akey : 4;
           u32 bkey : 4;
           u32 ckey : 4;
           u32 dkey : 4;
           u32 : 16;
        };

🌸 Members 🌸

• sliba — absolute address of storage list information block
• sla — absolute address of storage list
• slsba — absolute address of storage list state block
• akey — access key for SLIB
• bkey — access key for SL
• ckey — access key for SBALs
• dkey — access key for SLSB

🦋 SEE ALSO 🦋

Also peep the Kernel file ./arch/s390/include/asm/qdio.h, plus all these icons:

• struct qdr(9)
• struct qib(9)
• struct slibe(9)
• struct qaob(9)
• struct slib(9)
• struct qdio_buffer_element(9)
• struct qdio_buffer(9)
• struct sl_element(9)
• struct sl(9)
• struct slsb(9)
• struct qdio_initialize(9)

source/version: ./arch/s390/include/asm · date: October 2026 — mwah, go read the whole kernel bestie 💋✨