STRUCT GENERIC_PDU_RESC(9)

✨ struct generic_pdu_resc(9) ✨

okay bestie, welcome to the Kernel API Manual entry for struct generic_pdu_resc — that's the login pdu resource structure and she is lowkey the whole backstage pass for iSCSI login traffic 🎀

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✨ NAME ✨

struct generic_pdu_resc — the login pdu resource structure 💅

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🌸 SYNOPSIS 🌸

struct generic_pdu_resc {
    char *req_buf;
    dma_addr_t req_dma_addr;
    u32 req_buf_size;
    char *req_wr_ptr;
    struct iscsi_hdr resp_hdr;
    char *resp_buf;
    dma_addr_t resp_dma_addr;
    u32 resp_buf_size;
    char *resp_wr_ptr;
    char *req_bd_tbl;
    dma_addr_t req_bd_dma;
    char *resp_bd_tbl;
    dma_addr_t resp_bd_dma;
 };

like, that's her whole outfit, head to toe, no cap 🫶

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🦋 Members 🦋

so every single field, and what she actually does:

• req_buf — the driver buffer that stages the payload riding along with the login request 📥
• req_dma_addr — the dma address for that iSCSI login request payload buffer ✨
• req_buf_size — the actual login request payload length (yes, the real one) 📏
• req_wr_ptr — pointer into the login request buffer for when the next data is gonna be written ✍️
• resp_hdr — the iscsi header where the iscsi login response header gets recreated 🎬 (it's giving main character energy, honestly)
• resp_buf — buffer to stage the login response payload 📤
• resp_dma_addr — the login response payload buffer's dma address 💫
• resp_buf_size — the login response payload length 📐
• resp_wr_ptr — pointer into the login response buffer for when the next data is to be written ✍️
• req_bd_tbl — the iscsi login request payload BD table 🗂️
• req_bd_dma — the login request BD table dma address 🔗
• resp_bd_tbl — the iscsi login response payload BD table 🗂️
• resp_bd_dma — login request BD table dma address 🔗

fr fr, that last one is written exactly like the manual says it — resp_bd_dma described as the login request BD table dma address. not me editing the docs, i'm just the messenger bestie 😭

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💜 Description 💜

so the way this works: this structure defines the buffer info for generic pdus — think iSCSI Login, Logout and NOP 🦋 like, the everyday little pdus that keep the session alive and slaying.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/scsi/qedi/qedi_iscsi.h — go read it, iykyk 👑

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and that's the whole vibe check 💖 this page lives under ./drivers/scsi/qedi, dated October 2026 — mwah, periodt 🎀✨