#include <machine/rtems-bsd-kernel-space.h>
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2012-2013 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "nvme_private.h"
void
nvme_ctrlr_cmd_identify_controller(struct nvme_controller *ctrlr, void *payload,
nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_vaddr(payload,
sizeof(struct nvme_controller_data), cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_IDENTIFY;
/*
* TODO: create an identify command data structure, which
* includes this CNS bit in cdw10.
*/
cmd->cdw10 = htole32(1);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_identify_namespace(struct nvme_controller *ctrlr, uint32_t nsid,
void *payload, nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_vaddr(payload,
sizeof(struct nvme_namespace_data), cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_IDENTIFY;
/*
* TODO: create an identify command data structure
*/
cmd->nsid = htole32(nsid);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_create_io_cq(struct nvme_controller *ctrlr,
struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_CREATE_IO_CQ;
/*
* TODO: create a create io completion queue command data
* structure.
*/
cmd->cdw10 = htole32(((io_que->num_entries-1) << 16) | io_que->id);
/* 0x3 = interrupts enabled | physically contiguous */
cmd->cdw11 = htole32((io_que->vector << 16) | 0x3);
cmd->prp1 = htole64(io_que->cpl_bus_addr);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_create_io_sq(struct nvme_controller *ctrlr,
struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_CREATE_IO_SQ;
/*
* TODO: create a create io submission queue command data
* structure.
*/
cmd->cdw10 = htole32(((io_que->num_entries-1) << 16) | io_que->id);
/* 0x1 = physically contiguous */
cmd->cdw11 = htole32((io_que->id << 16) | 0x1);
cmd->prp1 = htole64(io_que->cmd_bus_addr);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_delete_io_cq(struct nvme_controller *ctrlr,
struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_DELETE_IO_CQ;
/*
* TODO: create a delete io completion queue command data
* structure.
*/
cmd->cdw10 = htole32(io_que->id);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_delete_io_sq(struct nvme_controller *ctrlr,
struct nvme_qpair *io_que, nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_DELETE_IO_SQ;
/*
* TODO: create a delete io submission queue command data
* structure.
*/
cmd->cdw10 = htole32(io_que->id);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_set_feature(struct nvme_controller *ctrlr, uint8_t feature,
uint32_t cdw11, void *payload, uint32_t payload_size,
nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_SET_FEATURES;
cmd->cdw10 = htole32(feature);
cmd->cdw11 = htole32(cdw11);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_get_feature(struct nvme_controller *ctrlr, uint8_t feature,
uint32_t cdw11, void *payload, uint32_t payload_size,
nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_GET_FEATURES;
cmd->cdw10 = htole32(feature);
cmd->cdw11 = htole32(cdw11);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_set_num_queues(struct nvme_controller *ctrlr,
uint32_t num_queues, nvme_cb_fn_t cb_fn, void *cb_arg)
{
uint32_t cdw11;
cdw11 = ((num_queues - 1) << 16) | (num_queues - 1);
nvme_ctrlr_cmd_set_feature(ctrlr, NVME_FEAT_NUMBER_OF_QUEUES, cdw11,
NULL, 0, cb_fn, cb_arg);
}
void
nvme_ctrlr_cmd_set_async_event_config(struct nvme_controller *ctrlr,
uint32_t state, nvme_cb_fn_t cb_fn, void *cb_arg)
{
uint32_t cdw11;
cdw11 = state;
nvme_ctrlr_cmd_set_feature(ctrlr,
NVME_FEAT_ASYNC_EVENT_CONFIGURATION, cdw11, NULL, 0, cb_fn,
cb_arg);
}
void
nvme_ctrlr_cmd_set_interrupt_coalescing(struct nvme_controller *ctrlr,
uint32_t microseconds, uint32_t threshold, nvme_cb_fn_t cb_fn, void *cb_arg)
{
uint32_t cdw11;
if ((microseconds/100) >= 0x100) {
nvme_printf(ctrlr, "invalid coal time %d, disabling\n",
microseconds);
microseconds = 0;
threshold = 0;
}
if (threshold >= 0x100) {
nvme_printf(ctrlr, "invalid threshold %d, disabling\n",
threshold);
threshold = 0;
microseconds = 0;
}
cdw11 = ((microseconds/100) << 8) | threshold;
nvme_ctrlr_cmd_set_feature(ctrlr, NVME_FEAT_INTERRUPT_COALESCING, cdw11,
NULL, 0, cb_fn, cb_arg);
}
void
nvme_ctrlr_cmd_get_log_page(struct nvme_controller *ctrlr, uint8_t log_page,
uint32_t nsid, void *payload, uint32_t payload_size, nvme_cb_fn_t cb_fn,
void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_vaddr(payload, payload_size, cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_GET_LOG_PAGE;
cmd->nsid = htole32(nsid);
cmd->cdw10 = ((payload_size/sizeof(uint32_t)) - 1) << 16;
cmd->cdw10 |= log_page;
cmd->cdw10 = htole32(cmd->cdw10);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
void
nvme_ctrlr_cmd_get_error_page(struct nvme_controller *ctrlr,
struct nvme_error_information_entry *payload, uint32_t num_entries,
nvme_cb_fn_t cb_fn, void *cb_arg)
{
KASSERT(num_entries > 0, ("%s called with num_entries==0\n", __func__));
/* Controller's error log page entries is 0-based. */
KASSERT(num_entries <= (ctrlr->cdata.elpe + 1),
("%s called with num_entries=%d but (elpe+1)=%d\n", __func__,
num_entries, ctrlr->cdata.elpe + 1));
if (num_entries > (ctrlr->cdata.elpe + 1))
num_entries = ctrlr->cdata.elpe + 1;
nvme_ctrlr_cmd_get_log_page(ctrlr, NVME_LOG_ERROR,
NVME_GLOBAL_NAMESPACE_TAG, payload, sizeof(*payload) * num_entries,
cb_fn, cb_arg);
}
void
nvme_ctrlr_cmd_get_health_information_page(struct nvme_controller *ctrlr,
uint32_t nsid, struct nvme_health_information_page *payload,
nvme_cb_fn_t cb_fn, void *cb_arg)
{
nvme_ctrlr_cmd_get_log_page(ctrlr, NVME_LOG_HEALTH_INFORMATION,
nsid, payload, sizeof(*payload), cb_fn, cb_arg);
}
void
nvme_ctrlr_cmd_get_firmware_page(struct nvme_controller *ctrlr,
struct nvme_firmware_page *payload, nvme_cb_fn_t cb_fn, void *cb_arg)
{
nvme_ctrlr_cmd_get_log_page(ctrlr, NVME_LOG_FIRMWARE_SLOT,
NVME_GLOBAL_NAMESPACE_TAG, payload, sizeof(*payload), cb_fn,
cb_arg);
}
void
nvme_ctrlr_cmd_abort(struct nvme_controller *ctrlr, uint16_t cid,
uint16_t sqid, nvme_cb_fn_t cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct nvme_command *cmd;
req = nvme_allocate_request_null(cb_fn, cb_arg);
cmd = &req->cmd;
cmd->opc = NVME_OPC_ABORT;
cmd->cdw10 = htole32((cid << 16) | sqid);
nvme_ctrlr_submit_admin_request(ctrlr, req);
}
