srpt_get_desc_tbl(9)

✨ NAME ✨

okay bestie, welcome to srpt_get_desc_tbl(9) from the Kernel API Manual 💖 — the function that is literally here to parse the data descriptors of a SRP_CMD request. No cap. 🦋

📜 SYNOPSIS 📜

int srpt_get_desc_tbl (struct srpt_recv_ioctx *recv_ioctx , struct
       srpt_send_ioctx *ioctx , struct srp_cmd *srp_cmd , enum
       dma_data_direction *dir , struct scatterlist **sg , unsigned int *sg_cnt
       , u64 *data_len , u16 imm_data_offset );

🫶 ARGUMENTS 🫶

okay, meet the cast, they all matter: 💅

• recv_ioctx — I/O context associated with the received command srp_cmd.
• ioctx — I/O context that will be used for responding to the initiator.
• srp_cmd — Pointer to the SRP_CMD request data.
• dir — Pointer to the variable to which the transfer direction will be written.
• sg — [out] scatterlist for the parsed SRP_CMD.
• sg_cnt — [out] length of sg.
• data_len — Pointer to the variable to which the total data length of all descriptors in the SRP_CMD request will be written.
• imm_data_offset — [in] Offset in SRP_CMD requests at which immediate data starts.

💅 DESCRIPTION 💅

okay so this function initializes ioctx->nrbuf and ioctx->r_bufs. That is the main-character job, periodt. 👑

It returns -EINVAL when the SRP_CMD request contains inconsistent descriptors; -ENOMEM when memory allocation fails; and zero upon success. 🫡

🌈 SEE ALSO 🌈

the kernel file is right here, bestie:

• Kernel file ./drivers/infiniband/ulp/srpt/ib_srpt.c

and the whole friend group is tagging along: 💖

• srpt_event_handler(9), srpt_srq_event(9), srpt_qp_event(9), srpt_set_ioc(9), srpt_get_class_port_info(9), srpt_get_iou(9), srpt_get_ioc(9), srpt_get_svc_entries(9), srpt_mgmt_method_get(9), srpt_mad_send_handler(9), srpt_mad_recv_handler(9)
• srpt_refresh_port(9), srpt_unregister_mad_agent(9), srpt_alloc_ioctx(9), srpt_free_ioctx(9), srpt_alloc_ioctx_ring(9), srpt_free_ioctx_ring(9), srpt_set_cmd_state(9), srpt_test_and_set_cmd_state(9), srpt_post_recv(9), srpt_zerolength_write(9), srpt_init_ch_qp(9)
• srpt_ch_qp_rtr(9), srpt_ch_qp_rts(9), srpt_ch_qp_err(9), srpt_get_send_ioctx(9), srpt_abort_cmd(9), srpt_rdma_read_done(9), srpt_build_cmd_rsp(9), srpt_build_tskmgmt_rsp(9), srpt_handle_cmd(9), srpt_handle_tsk_mgmt(9), srpt_handle_new_iu(9)
• srpt_send_done(9), srpt_create_ch_ib(9), srpt_close_ch(9), srpt_cm_req_recv(9), srpt_cm_rtu_recv(9), srpt_cm_handler(9), srpt_queue_response(9), srpt_release_sport(9), srpt_lookup_port(9), srpt_add_one(9), srpt_remove_one(9)
• srpt_close_session(9), srpt_parse_i_port_id(9), srpt_make_tpg(9), srpt_drop_tpg(9), srpt_make_tport(9), srpt_drop_tport(9), srpt_init_module(9)

and that is the whole page, bestie 🫶 — source ./drivers/infiniband/ulp/srpt, date October 2026, page srpt_get_desc_tbl(9). 💖✨