STRUCT DMA_MEMORY_DESC(9)

💖 struct dma_memory_desc(9) 💖

Okay bestie, this little cutie comes from the Kernel API Manual, and it's literally the blueprint for a memory descriptor structure that stores the virtual address, dma address, and size for any generic dma memory allocations in the driver. Lowkey iconic. 🎀

✨ NAME ✨

struct dma_memory_desc — the memory descriptor structure to store virtual address, dma address, and size for any generic dma memory allocations in the driver. No cap, that's the whole job. 💅

🌸 SYNOPSIS 🌸

The shape of it is exactly this, bestie:

struct dma_memory_desc {
    u32 size;
    void *addr;
    dma_addr_t dma_addr;
 };

🧚 Members 🧚

• size — buffer size 🍓
• addr — virtual address ✨
• dma_addr — dma address 🦋

👀 SEE ALSO 👀

Kernel file ./drivers/scsi/mpi3mr/mpi3mr.h — go be nosy at these:

• struct mpi3mr_nvme_pt_sge(9)
• struct mpi3mr_buf_map(9)
• struct mpi3mr_compimg_ver(9)
• struct segments(9)
• struct op_req_qinfo(9)
• struct op_reply_qinfo(9)
• struct mpi3mr_intr_info(9)
• struct mpi3mr_throttle_group_info(9)
• struct mpi3mr_hba_port(9)
• struct mpi3mr_sas_port(9)
• struct mpi3mr_sas_phy(9)
• struct mpi3mr_sas_node(9)
• struct mpi3mr_enclosure_node(9)
• struct tgt_dev_sas_sata(9)
• struct tgt_dev_pcie(9)
• struct tgt_dev_vd(9)
• union _form_spec_inf(9)
• struct mpi3mr_tgt_dev(9)
• mpi3mr_tgtdev_get(9)
• mpi3mr_free_tgtdev(9)
• mpi3mr_tgtdev_put(9)
• struct mpi3mr_stgt_priv_data(9)
• struct mpi3mr_drv_cmd(9)
• union mpi3mr_trigger_data(9)
• struct trigger_event_data(9)
• struct diag_buffer_desc(9)
• struct chain_element(9)
• struct scmd_priv(9)
• struct mpi3mr_ioc(9)
• struct mpi3mr_fwevt(9)
• struct delayed_dev_rmhs_node(9)
• struct delayed_evt_ack_node(9)

So yeah, that's the whole page, bestie 💅 — this one comes from the Kernel API Manual, source ./drivers/scsi/mpi3mr, dated October 2026. Slay. 🌈