srpt_test_and_set_cmd_state(9)

💅 srpt_test_and_set_cmd_state — kernel API manual, bestie edition ✨

okay so this is one of those kernel API manual pages (the 9 section, the dev-facing one, iykyk) and honestly? it's a little one. tiny icon. but it's doing important work, so let's give it the respect it deserves 🫶

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🌸 NAME 🌸

srpt_test_and_set_cmd_state — literally test and set the state of a command. both. at once. she's multitasking 👑

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✨ SYNOPSIS ✨

bool srpt_test_and_set_cmd_state (struct srpt_send_ioctx *ioctx , enum
srpt_command_state old , enum srpt_command_state new );

that's the whole signature, no cap. she takes three things and hands you back a bool 💖

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🎀 ARGUMENTS 🎀

• ioctx — the send I/O context. your main character struct, the whole reason we're here 🦋
• old — the current I/O context state. like, what you think it is right now 👀
• new — the new I/O context state. what you want it to become. glow-up time 🌈

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🔥 DESCRIPTION 🔥

okay here's the vibe check: this returns true if and only if the previous command state was equal to old. that's the whole deal. if and only if — she said what she said 💀

so it's a compare-and-swap situation for command states, and the bool is the receipts. no extra lore, no hidden behaviour, that's genuinely it. periodt 💅

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💜 SEE ALSO 💜

the source file lives at ./drivers/infiniband/ulp/srpt/ib_srpt.c — go read it, she's iconic 🔥

and here's the whole friend group, in the order they were introduced (keep the squad together fr fr):

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_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)

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🌟 cute little sign-off 🌟

this masterpiece is served up fresh from ./drivers/infiniband/ulp/srpt, dated October 2026, and if you ever forget the name just remember: srpt_test_and_set_cmd_state(9). say it with your chest 💖✨🎀