0a0b08cc30
Also add logic to clean up all outstanding asynchronous event requests when resetting or shutting down the controller, since these requests will not be explicitly completed by the controller itself. Sponsored by: Intel
285 lines
7.5 KiB
C
285 lines
7.5 KiB
C
/*-
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* Copyright (C) 2012 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "nvme_private.h"
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void
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nvme_ctrlr_cmd_identify_controller(struct nvme_controller *ctrlr, void *payload,
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nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(payload,
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sizeof(struct nvme_controller_data), cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_IDENTIFY;
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/*
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* TODO: create an identify command data structure, which
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* includes this CNS bit in cdw10.
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*/
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cmd->cdw10 = 1;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_identify_namespace(struct nvme_controller *ctrlr, uint16_t nsid,
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void *payload, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(payload,
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sizeof(struct nvme_namespace_data), cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_IDENTIFY;
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/*
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* TODO: create an identify command data structure
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*/
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cmd->nsid = nsid;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_create_io_cq(struct nvme_controller *ctrlr,
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struct nvme_qpair *io_que, uint16_t vector, nvme_cb_fn_t cb_fn,
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void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_CREATE_IO_CQ;
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/*
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* TODO: create a create io completion queue command data
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* structure.
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*/
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cmd->cdw10 = ((io_que->num_entries-1) << 16) | io_que->id;
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/* 0x3 = interrupts enabled | physically contiguous */
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cmd->cdw11 = (vector << 16) | 0x3;
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cmd->prp1 = io_que->cpl_bus_addr;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_create_io_sq(struct nvme_controller *ctrlr,
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struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_CREATE_IO_SQ;
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/*
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* TODO: create a create io submission queue command data
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* structure.
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*/
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cmd->cdw10 = ((io_que->num_entries-1) << 16) | io_que->id;
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/* 0x1 = physically contiguous */
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cmd->cdw11 = (io_que->id << 16) | 0x1;
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cmd->prp1 = io_que->cmd_bus_addr;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_delete_io_cq(struct nvme_controller *ctrlr,
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struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_DELETE_IO_CQ;
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/*
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* TODO: create a delete io completion queue command data
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* structure.
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*/
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cmd->cdw10 = io_que->id;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_delete_io_sq(struct nvme_controller *ctrlr,
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struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_DELETE_IO_SQ;
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/*
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* TODO: create a delete io submission queue command data
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* structure.
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*/
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cmd->cdw10 = io_que->id;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_set_feature(struct nvme_controller *ctrlr, uint8_t feature,
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uint32_t cdw11, void *payload, uint32_t payload_size,
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nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_SET_FEATURES;
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cmd->cdw10 = feature;
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cmd->cdw11 = cdw11;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_get_feature(struct nvme_controller *ctrlr, uint8_t feature,
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uint32_t cdw11, void *payload, uint32_t payload_size,
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nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_GET_FEATURES;
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cmd->cdw10 = feature;
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cmd->cdw11 = cdw11;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_set_num_queues(struct nvme_controller *ctrlr,
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uint32_t num_queues, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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uint32_t cdw11;
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cdw11 = ((num_queues - 1) << 16) || (num_queues - 1);
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nvme_ctrlr_cmd_set_feature(ctrlr, NVME_FEAT_NUMBER_OF_QUEUES, cdw11,
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NULL, 0, cb_fn, cb_arg);
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}
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void
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nvme_ctrlr_cmd_set_async_event_config(struct nvme_controller *ctrlr,
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union nvme_critical_warning_state state, nvme_cb_fn_t cb_fn,
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void *cb_arg)
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{
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uint32_t cdw11;
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cdw11 = state.raw;
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nvme_ctrlr_cmd_set_feature(ctrlr,
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NVME_FEAT_ASYNC_EVENT_CONFIGURATION, cdw11, NULL, 0, cb_fn,
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cb_arg);
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}
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void
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nvme_ctrlr_cmd_set_interrupt_coalescing(struct nvme_controller *ctrlr,
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uint32_t microseconds, uint32_t threshold, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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uint32_t cdw11;
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if ((microseconds/100) >= 0x100) {
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KASSERT(FALSE, ("intr coal time > 255*100 microseconds\n"));
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printf("invalid coal time %d, disabling\n", microseconds);
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microseconds = 0;
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threshold = 0;
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}
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if (threshold >= 0x100) {
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KASSERT(FALSE, ("intr threshold > 255\n"));
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printf("invalid threshold %d, disabling\n", threshold);
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threshold = 0;
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microseconds = 0;
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}
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cdw11 = ((microseconds/100) << 8) | threshold;
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nvme_ctrlr_cmd_set_feature(ctrlr, NVME_FEAT_INTERRUPT_COALESCING, cdw11,
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NULL, 0, cb_fn, cb_arg);
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}
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void
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nvme_ctrlr_cmd_get_health_information_page(struct nvme_controller *ctrlr,
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uint32_t nsid, struct nvme_health_information_page *payload,
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nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(payload, sizeof(*payload), cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_GET_LOG_PAGE;
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cmd->nsid = nsid;
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cmd->cdw10 = ((sizeof(*payload)/sizeof(uint32_t)) - 1) << 16;
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cmd->cdw10 |= NVME_LOG_HEALTH_INFORMATION;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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void
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nvme_ctrlr_cmd_abort(struct nvme_controller *ctrlr, uint16_t cid,
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uint16_t sqid, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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struct nvme_request *req;
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struct nvme_command *cmd;
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req = nvme_allocate_request(NULL, 0, cb_fn, cb_arg);
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cmd = &req->cmd;
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cmd->opc = NVME_OPC_ABORT;
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cmd->cdw10 = (cid << 16) | sqid;
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nvme_ctrlr_submit_admin_request(ctrlr, req);
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}
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