srpt_cm_req_recv(9)

💖 NAME 💖

okay so bestie, meet srpt_cm_req_recv(9) from the Kernel API Manual ✨. its whole assignment is processing the event IB_CM_REQ_RECEIVED 🎀 — that's the name, that's the job, and it's serving exactly that.

📜 SYNOPSIS 📜

int srpt_cm_req_recv (struct srpt_device *const sdev , struct ib_cm_id
       *ib_cm_id , struct rdma_cm_id *rdma_cm_id , u8 port_num , __be16 pkey ,
       const struct srp_login_req *req , const char *src_addr );

🫶 ARGUMENTS 🫶

• sdev — the HCA through which the login request was received 🛰️
• ib_cm_id — the IB/CM connection identifier, for the IB/CM case 🪪
• rdma_cm_id — the RDMA/CM connection identifier, for the RDMA/CM case 🪪
• port_num — the port through which the REQ message was received 🔌
• pkey — the P_Key of the incoming connection 🔑
• req — the SRP login request 📨
• src_addr — the GID (IB/CM) or IP address (RDMA/CM) of the port that submitted the login request 🌐

💅 DESCRIPTION 💅

okay so here's the ownership tea ☕: if this function returns zero, ownership of the cm_id is transferred to the target session. otherwise, the caller remains the owner of cm_id. periodt 💅

this is the main character detail, bestie: zero return = ownership of the cm_id moves to the target session; not-zero return = the caller stays the owner of cm_id. no cap 🔥

👑 SEE ALSO 👑

the group chat of related kernel friends 💬:

• Kernel file ./drivers/infiniband/ulp/srpt/ib_srpt.c
• 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_get_desc_tbl(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_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)

xoxo, your kernel bestie 💖 — source/version: ./drivers/infiniband/ulp/srpt; date: October 2026; page: srpt_cm_req_recv(9). go read the source and slay 🫶✨