srpt_alloc_ioctx_ring(9)

💖 NAME 💖

srpt_alloc_ioctx_ring — okay so bestie, this is the function that allocates a ring of SRPT I/O context structures. That's literally the whole vibe: ring, I/O contexts, allocated ✨ (also hi, you're in section 9 of the Kernel API Manual, love that for us 🎀)

🌸 SYNOPSIS 🌸

struct srpt_ioctx ** srpt_alloc_ioctx_ring (struct srpt_device *sdev ,
int ring_size , int ioctx_size , struct kmem_cache *buf_cache , int
alignment_offset , enum dma_data_direction dir );

🦋 ARGUMENTS 🦋

Bestie, the tea on the parameters, one by one, no skips 👑

• sdev — the device you're allocating the I/O context ring for. Like, the whole reason this ring exists, iykyk.
• ring_size — how many elements go in the I/O context ring. Count them, don't guess 💅
• ioctx_size — the size of the I/O context. Yes, it's called that. We love a literal king.
• buf_cache — the I/O buffer cache. Slay, cache.
• alignment_offset — the offset in each ring buffer at which the SRP information unit starts. This one's doing the most, honestly, and we respect it 🫶
• dir — DMA data direction. Direction matters, always has 🌈

🌟 SEE ALSO 🌟

First things first, the kernel file to go peek at: ./drivers/infiniband/ulp/srpt/ib_srpt.c 🔥

And now the friend group, the whole entire squad, in order, because we do not leave anyone out 👑:

• 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_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_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)

fr fr, go read the whole squad, they're all iconic and they all live in the same corner of the kernel 💀✨

And that's the page, bestie 🧚 this little masterpiece comes to you from ./drivers/infiniband/ulp/srpt, dated October 2026 — periodt, take care of her 💜🎀