ibmvscsis_reset_queue(9)

🌸 NAME 🌸

ibmvscsis_reset_queue — Reset CRQ Queue. yep bestie, this is the ibmvscsis_reset_queue(9) page from the Kernel API Manual, and it is literally all about resetting that CRQ queue. ✨

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💅 SYNOPSIS 💅

okay so the signature is serving exactly this:

void ibmvscsis_reset_queue (struct scsi_info *vscsi );

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🎀 ARGUMENTS 🎀

• vscsi — Pointer to our adapter structure 🫶

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🦋 DESCRIPTION 🦋

so here’s the tea: this function calls h_free_q and then calls h_reg_q, and it does all of the bookkeeping to get us back to where we can communicate. 💅

but plot twist — actually, we don’t always call h_free_crq. a problem was discovered where one partition would close and reopen their queue, which would cause their partner to get a transport event, which would cause them to close and reopen their queue, which would cause the original partition to get a transport event, etc., etc. 😭 to prevent this, we don’t actually close our queue if the client initiated the reset (i.e. either we got a transport event or we have detected that the client’s queue is gone).

EXECUTION ENVIRONMENT: Process environment, called with interrupt lock held. yes bestie, that lock is held. 🔒

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🔥 SEE ALSO 🔥

like, go read these too, iykyk:

• Kernel file ./drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
• connection_broken(9)
• ibmvscsis_unregister_command_q(9)
• ibmvscsis_delete_client_info(9)
• ibmvscsis_free_command_q(9)
• ibmvscsis_cmd_q_dequeue(9)
• ibmvscsis_send_init_message(9)
• ibmvscsis_check_init_msg(9)
• ibmvscsis_disconnect(9)
• ibmvscsis_post_disconnect(9)
• ibmvscsis_handle_init_compl_msg(9)
• ibmvscsis_handle_init_msg(9)
• ibmvscsis_init_msg(9)
• ibmvscsis_establish_new_q(9)
• ibmvscsis_free_cmd_resources(9)
• ibmvscsis_ready_for_suspend(9)
• ibmvscsis_trans_event(9)
• ibmvscsis_poll_cmd_q(9)
• ibmvscsis_free_cmd_qs(9)
• ibmvscsis_get_free_cmd(9)
• ibmvscsis_adapter_idle(9)
• ibmvscsis_copy_crq_packet(9)
• ibmvscsis_adapter_info(9)
• ibmvscsis_cap_mad(9)
• ibmvscsis_process_mad(9)
• srp_snd_msg_failed(9)
• ibmvscsis_send_messages(9)
• ibmvscsis_mad(9)
• ibmvscsis_login_rsp(9)
• ibmvscsis_srp_login_rej(9)
• ibmvscsis_srp_login(9)
• ibmvscsis_srp_i_logout(9)
• ibmvscsis_ping_response(9)
• ibmvscsis_parse_command(9)
• ibmvscsis_parse_cmd(9)
• ibmvscsis_parse_task(9)
• ibmvscsis_service_wait_q(9)
• ibmvscsis_enable_change_state(9)
• ibmvscsis_create_command_q(9)
• ibmvscsis_destroy_command_q(9)
• srp_build_response(9)
• ibmvscsis_handle_crq(9)

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okay that’s the whole page! source/version situation: ./drivers/scsi/ibmvscsi_tgt; date: October 2026; manual title: ibmvscsis_reset_queue(9). mwah, bestie 💋🎀