326 lines
8.6 KiB
C
326 lines
8.6 KiB
C
/*-
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* Copyright (C) 2012-2013 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_vaddr(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_vaddr(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(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(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(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(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(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(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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nvme_printf(ctrlr, "invalid coal time %d, disabling\n",
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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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nvme_printf(ctrlr, "invalid threshold %d, disabling\n",
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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_log_page(struct nvme_controller *ctrlr, uint8_t log_page,
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uint32_t nsid, void *payload, uint32_t payload_size, 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_vaddr(payload, payload_size, 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 = ((payload_size/sizeof(uint32_t)) - 1) << 16;
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cmd->cdw10 |= log_page;
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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_error_page(struct nvme_controller *ctrlr,
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struct nvme_error_information_entry *payload, uint32_t num_entries,
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nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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KASSERT(num_entries > 0, ("%s called with num_entries==0\n", __func__));
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/* Controller's error log page entries is 0-based. */
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KASSERT(num_entries <= (ctrlr->cdata.elpe + 1),
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("%s called with num_entries=%d but (elpe+1)=%d\n", __func__,
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num_entries, ctrlr->cdata.elpe + 1));
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if (num_entries > (ctrlr->cdata.elpe + 1))
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num_entries = ctrlr->cdata.elpe + 1;
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nvme_ctrlr_cmd_get_log_page(ctrlr, NVME_LOG_ERROR,
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NVME_GLOBAL_NAMESPACE_TAG, payload, sizeof(*payload) * num_entries,
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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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nvme_ctrlr_cmd_get_log_page(ctrlr, NVME_LOG_HEALTH_INFORMATION,
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nsid, payload, sizeof(*payload), cb_fn, cb_arg);
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}
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void
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nvme_ctrlr_cmd_get_firmware_page(struct nvme_controller *ctrlr,
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struct nvme_firmware_page *payload, nvme_cb_fn_t cb_fn, void *cb_arg)
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{
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nvme_ctrlr_cmd_get_log_page(ctrlr, NVME_LOG_FIRMWARE_SLOT,
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NVME_GLOBAL_NAMESPACE_TAG, payload, sizeof(*payload), cb_fn,
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cb_arg);
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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(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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