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freebsd-nq/sys/dev/nvme/nvme.h
Kyle Evans afdc2600c2 nvme: Unbreak LE builds after r329824 
The parameter 'p' is unused if _BYTE_ORDER == _LITTLE_ENDIAN. Add in a
(void)p to fix the build.
2018-02-22 16:16:49 +00:00

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/*-
* 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.
*
* $FreeBSD$
*/
#ifndef __NVME_H__
#define __NVME_H__
#ifdef _KERNEL
#include <sys/types.h>
#endif
#include <sys/param.h>
#include <sys/endian.h>
#define NVME_PASSTHROUGH_CMD _IOWR('n', 0, struct nvme_pt_command)
#define NVME_RESET_CONTROLLER _IO('n', 1)
#define NVME_IO_TEST _IOWR('n', 100, struct nvme_io_test)
#define NVME_BIO_TEST _IOWR('n', 101, struct nvme_io_test)
/*
* Macros to deal with NVME revisions, as defined VS register
*/
#define NVME_REV(x, y) (((x) << 16) | ((y) << 8))
#define NVME_MAJOR(r) (((r) >> 16) & 0xffff)
#define NVME_MINOR(r) (((r) >> 8) & 0xff)
/*
* Use to mark a command to apply to all namespaces, or to retrieve global
* log pages.
*/
#define NVME_GLOBAL_NAMESPACE_TAG ((uint32_t)0xFFFFFFFF)
/* Cap nvme to 1MB transfers driver explodes with larger sizes */
#define NVME_MAX_XFER_SIZE (MAXPHYS < (1<<20) ? MAXPHYS : (1<<20))
/* Register field definitions */
#define NVME_CAP_LO_REG_MQES_SHIFT (0)
#define NVME_CAP_LO_REG_MQES_MASK (0xFFFF)
#define NVME_CAP_LO_REG_CQR_SHIFT (16)
#define NVME_CAP_LO_REG_CQR_MASK (0x1)
#define NVME_CAP_LO_REG_AMS_SHIFT (17)
#define NVME_CAP_LO_REG_AMS_MASK (0x3)
#define NVME_CAP_LO_REG_TO_SHIFT (24)
#define NVME_CAP_LO_REG_TO_MASK (0xFF)
#define NVME_CAP_HI_REG_DSTRD_SHIFT (0)
#define NVME_CAP_HI_REG_DSTRD_MASK (0xF)
#define NVME_CAP_HI_REG_CSS_NVM_SHIFT (5)
#define NVME_CAP_HI_REG_CSS_NVM_MASK (0x1)
#define NVME_CAP_HI_REG_MPSMIN_SHIFT (16)
#define NVME_CAP_HI_REG_MPSMIN_MASK (0xF)
#define NVME_CAP_HI_REG_MPSMAX_SHIFT (20)
#define NVME_CAP_HI_REG_MPSMAX_MASK (0xF)
#define NVME_CC_REG_EN_SHIFT (0)
#define NVME_CC_REG_EN_MASK (0x1)
#define NVME_CC_REG_CSS_SHIFT (4)
#define NVME_CC_REG_CSS_MASK (0x7)
#define NVME_CC_REG_MPS_SHIFT (7)
#define NVME_CC_REG_MPS_MASK (0xF)
#define NVME_CC_REG_AMS_SHIFT (11)
#define NVME_CC_REG_AMS_MASK (0x7)
#define NVME_CC_REG_SHN_SHIFT (14)
#define NVME_CC_REG_SHN_MASK (0x3)
#define NVME_CC_REG_IOSQES_SHIFT (16)
#define NVME_CC_REG_IOSQES_MASK (0xF)
#define NVME_CC_REG_IOCQES_SHIFT (20)
#define NVME_CC_REG_IOCQES_MASK (0xF)
#define NVME_CSTS_REG_RDY_SHIFT (0)
#define NVME_CSTS_REG_RDY_MASK (0x1)
#define NVME_CSTS_REG_CFS_SHIFT (1)
#define NVME_CSTS_REG_CFS_MASK (0x1)
#define NVME_CSTS_REG_SHST_SHIFT (2)
#define NVME_CSTS_REG_SHST_MASK (0x3)
#define NVME_CSTS_GET_SHST(csts) (((csts) >> NVME_CSTS_REG_SHST_SHIFT) & NVME_CSTS_REG_SHST_MASK)
#define NVME_AQA_REG_ASQS_SHIFT (0)
#define NVME_AQA_REG_ASQS_MASK (0xFFF)
#define NVME_AQA_REG_ACQS_SHIFT (16)
#define NVME_AQA_REG_ACQS_MASK (0xFFF)
/* Command field definitions */
#define NVME_CMD_OPC_SHIFT (0)
#define NVME_CMD_OPC_MASK (0xFF)
#define NVME_CMD_FUSE_SHIFT (8)
#define NVME_CMD_FUSE_MASK (0x3)
#define NVME_CMD_SET_OPC(opc) (htole16(((opc) & NVME_CMD_OPC_MASK) << NVME_CMD_OPC_SHIFT))
#define NVME_STATUS_P_SHIFT (0)
#define NVME_STATUS_P_MASK (0x1)
#define NVME_STATUS_SC_SHIFT (1)
#define NVME_STATUS_SC_MASK (0xFF)
#define NVME_STATUS_SCT_SHIFT (9)
#define NVME_STATUS_SCT_MASK (0x7)
#define NVME_STATUS_M_SHIFT (14)
#define NVME_STATUS_M_MASK (0x1)
#define NVME_STATUS_DNR_SHIFT (15)
#define NVME_STATUS_DNR_MASK (0x1)
#define NVME_STATUS_GET_P(st) (((st) >> NVME_STATUS_P_SHIFT) & NVME_STATUS_P_MASK)
#define NVME_STATUS_GET_SC(st) (((st) >> NVME_STATUS_SC_SHIFT) & NVME_STATUS_SC_MASK)
#define NVME_STATUS_GET_SCT(st) (((st) >> NVME_STATUS_SCT_SHIFT) & NVME_STATUS_SCT_MASK)
#define NVME_STATUS_GET_M(st) (((st) >> NVME_STATUS_M_SHIFT) & NVME_STATUS_M_MASK)
#define NVME_STATUS_GET_DNR(st) (((st) >> NVME_STATUS_DNR_SHIFT) & NVME_STATUS_DNR_MASK)
#define NVME_PWR_ST_MPS_SHIFT (0)
#define NVME_PWR_ST_MPS_MASK (0x1)
#define NVME_PWR_ST_NOPS_SHIFT (1)
#define NVME_PWR_ST_NOPS_MASK (0x1)
#define NVME_PWR_ST_RRT_SHIFT (0)
#define NVME_PWR_ST_RRT_MASK (0x1F)
#define NVME_PWR_ST_RRL_SHIFT (0)
#define NVME_PWR_ST_RRL_MASK (0x1F)
#define NVME_PWR_ST_RWT_SHIFT (0)
#define NVME_PWR_ST_RWT_MASK (0x1F)
#define NVME_PWR_ST_RWL_SHIFT (0)
#define NVME_PWR_ST_RWL_MASK (0x1F)
#define NVME_PWR_ST_IPS_SHIFT (6)
#define NVME_PWR_ST_IPS_MASK (0x3)
#define NVME_PWR_ST_APW_SHIFT (0)
#define NVME_PWR_ST_APW_MASK (0x7)
#define NVME_PWR_ST_APS_SHIFT (6)
#define NVME_PWR_ST_APS_MASK (0x3)
/** OACS - optional admin command support */
/* supports security send/receive commands */
#define NVME_CTRLR_DATA_OACS_SECURITY_SHIFT (0)
#define NVME_CTRLR_DATA_OACS_SECURITY_MASK (0x1)
/* supports format nvm command */
#define NVME_CTRLR_DATA_OACS_FORMAT_SHIFT (1)
#define NVME_CTRLR_DATA_OACS_FORMAT_MASK (0x1)
/* supports firmware activate/download commands */
#define NVME_CTRLR_DATA_OACS_FIRMWARE_SHIFT (2)
#define NVME_CTRLR_DATA_OACS_FIRMWARE_MASK (0x1)
/* supports namespace management commands */
#define NVME_CTRLR_DATA_OACS_NSMGMT_SHIFT (3)
#define NVME_CTRLR_DATA_OACS_NSMGMT_MASK (0x1)
/** firmware updates */
/* first slot is read-only */
#define NVME_CTRLR_DATA_FRMW_SLOT1_RO_SHIFT (0)
#define NVME_CTRLR_DATA_FRMW_SLOT1_RO_MASK (0x1)
/* number of firmware slots */
#define NVME_CTRLR_DATA_FRMW_NUM_SLOTS_SHIFT (1)
#define NVME_CTRLR_DATA_FRMW_NUM_SLOTS_MASK (0x7)
/** log page attributes */
/* per namespace smart/health log page */
#define NVME_CTRLR_DATA_LPA_NS_SMART_SHIFT (0)
#define NVME_CTRLR_DATA_LPA_NS_SMART_MASK (0x1)
/** AVSCC - admin vendor specific command configuration */
/* admin vendor specific commands use spec format */
#define NVME_CTRLR_DATA_AVSCC_SPEC_FORMAT_SHIFT (0)
#define NVME_CTRLR_DATA_AVSCC_SPEC_FORMAT_MASK (0x1)
/** Autonomous Power State Transition Attributes */
/* Autonomous Power State Transitions supported */
#define NVME_CTRLR_DATA_APSTA_APST_SUPP_SHIFT (0)
#define NVME_CTRLR_DATA_APSTA_APST_SUPP_MASK (0x1)
/** submission queue entry size */
#define NVME_CTRLR_DATA_SQES_MIN_SHIFT (0)
#define NVME_CTRLR_DATA_SQES_MIN_MASK (0xF)
#define NVME_CTRLR_DATA_SQES_MAX_SHIFT (4)
#define NVME_CTRLR_DATA_SQES_MAX_MASK (0xF)
/** completion queue entry size */
#define NVME_CTRLR_DATA_CQES_MIN_SHIFT (0)
#define NVME_CTRLR_DATA_CQES_MIN_MASK (0xF)
#define NVME_CTRLR_DATA_CQES_MAX_SHIFT (4)
#define NVME_CTRLR_DATA_CQES_MAX_MASK (0xF)
/** optional nvm command support */
#define NVME_CTRLR_DATA_ONCS_COMPARE_SHIFT (0)
#define NVME_CTRLR_DATA_ONCS_COMPARE_MASK (0x1)
#define NVME_CTRLR_DATA_ONCS_WRITE_UNC_SHIFT (1)
#define NVME_CTRLR_DATA_ONCS_WRITE_UNC_MASK (0x1)
#define NVME_CTRLR_DATA_ONCS_DSM_SHIFT (2)
#define NVME_CTRLR_DATA_ONCS_DSM_MASK (0x1)
/** volatile write cache */
#define NVME_CTRLR_DATA_VWC_PRESENT_SHIFT (0)
#define NVME_CTRLR_DATA_VWC_PRESENT_MASK (0x1)
/** namespace features */
/* thin provisioning */
#define NVME_NS_DATA_NSFEAT_THIN_PROV_SHIFT (0)
#define NVME_NS_DATA_NSFEAT_THIN_PROV_MASK (0x1)
/** formatted lba size */
#define NVME_NS_DATA_FLBAS_FORMAT_SHIFT (0)
#define NVME_NS_DATA_FLBAS_FORMAT_MASK (0xF)
#define NVME_NS_DATA_FLBAS_EXTENDED_SHIFT (4)
#define NVME_NS_DATA_FLBAS_EXTENDED_MASK (0x1)
/** metadata capabilities */
/* metadata can be transferred as part of data prp list */
#define NVME_NS_DATA_MC_EXTENDED_SHIFT (0)
#define NVME_NS_DATA_MC_EXTENDED_MASK (0x1)
/* metadata can be transferred with separate metadata pointer */
#define NVME_NS_DATA_MC_POINTER_SHIFT (1)
#define NVME_NS_DATA_MC_POINTER_MASK (0x1)
/** end-to-end data protection capabilities */
/* protection information type 1 */
#define NVME_NS_DATA_DPC_PIT1_SHIFT (0)
#define NVME_NS_DATA_DPC_PIT1_MASK (0x1)
/* protection information type 2 */
#define NVME_NS_DATA_DPC_PIT2_SHIFT (1)
#define NVME_NS_DATA_DPC_PIT2_MASK (0x1)
/* protection information type 3 */
#define NVME_NS_DATA_DPC_PIT3_SHIFT (2)
#define NVME_NS_DATA_DPC_PIT3_MASK (0x1)
/* first eight bytes of metadata */
#define NVME_NS_DATA_DPC_MD_START_SHIFT (3)
#define NVME_NS_DATA_DPC_MD_START_MASK (0x1)
/* last eight bytes of metadata */
#define NVME_NS_DATA_DPC_MD_END_SHIFT (4)
#define NVME_NS_DATA_DPC_MD_END_MASK (0x1)
/** end-to-end data protection type settings */
/* protection information type */
#define NVME_NS_DATA_DPS_PIT_SHIFT (0)
#define NVME_NS_DATA_DPS_PIT_MASK (0x7)
/* 1 == protection info transferred at start of metadata */
/* 0 == protection info transferred at end of metadata */
#define NVME_NS_DATA_DPS_MD_START_SHIFT (3)
#define NVME_NS_DATA_DPS_MD_START_MASK (0x1)
/** lba format support */
/* metadata size */
#define NVME_NS_DATA_LBAF_MS_SHIFT (0)
#define NVME_NS_DATA_LBAF_MS_MASK (0xFFFF)
/* lba data size */
#define NVME_NS_DATA_LBAF_LBADS_SHIFT (16)
#define NVME_NS_DATA_LBAF_LBADS_MASK (0xFF)
/* relative performance */
#define NVME_NS_DATA_LBAF_RP_SHIFT (24)
#define NVME_NS_DATA_LBAF_RP_MASK (0x3)
enum nvme_critical_warning_state {
NVME_CRIT_WARN_ST_AVAILABLE_SPARE = 0x1,
NVME_CRIT_WARN_ST_TEMPERATURE = 0x2,
NVME_CRIT_WARN_ST_DEVICE_RELIABILITY = 0x4,
NVME_CRIT_WARN_ST_READ_ONLY = 0x8,
NVME_CRIT_WARN_ST_VOLATILE_MEMORY_BACKUP = 0x10,
};
#define NVME_CRIT_WARN_ST_RESERVED_MASK (0xE0)
/* slot for current FW */
#define NVME_FIRMWARE_PAGE_AFI_SLOT_SHIFT (0)
#define NVME_FIRMWARE_PAGE_AFI_SLOT_MASK (0x7)
/* CC register SHN field values */
enum shn_value {
NVME_SHN_NORMAL = 0x1,
NVME_SHN_ABRUPT = 0x2,
};
/* CSTS register SHST field values */
enum shst_value {
NVME_SHST_NORMAL = 0x0,
NVME_SHST_OCCURRING = 0x1,
NVME_SHST_COMPLETE = 0x2,
};
struct nvme_registers
{
/** controller capabilities */
uint32_t cap_lo;
uint32_t cap_hi;
uint32_t vs; /* version */
uint32_t intms; /* interrupt mask set */
uint32_t intmc; /* interrupt mask clear */
/** controller configuration */
uint32_t cc;
uint32_t reserved1;
/** controller status */
uint32_t csts;
uint32_t reserved2;
/** admin queue attributes */
uint32_t aqa;
uint64_t asq; /* admin submission queue base addr */
uint64_t acq; /* admin completion queue base addr */
uint32_t reserved3[0x3f2];
struct {
uint32_t sq_tdbl; /* submission queue tail doorbell */
uint32_t cq_hdbl; /* completion queue head doorbell */
} doorbell[1] __packed;
} __packed;
_Static_assert(sizeof(struct nvme_registers) == 0x1008, "bad size for nvme_registers");
struct nvme_command
{
/* dword 0 */
uint16_t opc_fuse; /* opcode, fused operation */
uint16_t cid; /* command identifier */
/* dword 1 */
uint32_t nsid; /* namespace identifier */
/* dword 2-3 */
uint32_t rsvd2;
uint32_t rsvd3;
/* dword 4-5 */
uint64_t mptr; /* metadata pointer */
/* dword 6-7 */
uint64_t prp1; /* prp entry 1 */
/* dword 8-9 */
uint64_t prp2; /* prp entry 2 */
/* dword 10-15 */
uint32_t cdw10; /* command-specific */
uint32_t cdw11; /* command-specific */
uint32_t cdw12; /* command-specific */
uint32_t cdw13; /* command-specific */
uint32_t cdw14; /* command-specific */
uint32_t cdw15; /* command-specific */
} __packed;
_Static_assert(sizeof(struct nvme_command) == 16 * 4, "bad size for nvme_command");
struct nvme_completion {
/* dword 0 */
uint32_t cdw0; /* command-specific */
/* dword 1 */
uint32_t rsvd1;
/* dword 2 */
uint16_t sqhd; /* submission queue head pointer */
uint16_t sqid; /* submission queue identifier */
/* dword 3 */
uint16_t cid; /* command identifier */
uint16_t status;
} __packed;
_Static_assert(sizeof(struct nvme_completion) == 4 * 4, "bad size for nvme_completion");
struct nvme_dsm_range {
uint32_t attributes;
uint32_t length;
uint64_t starting_lba;
} __packed;
_Static_assert(sizeof(struct nvme_dsm_range) == 16, "bad size for nvme_dsm_ranage");
/* status code types */
enum nvme_status_code_type {
NVME_SCT_GENERIC = 0x0,
NVME_SCT_COMMAND_SPECIFIC = 0x1,
NVME_SCT_MEDIA_ERROR = 0x2,
/* 0x3-0x6 - reserved */
NVME_SCT_VENDOR_SPECIFIC = 0x7,
};
/* generic command status codes */
enum nvme_generic_command_status_code {
NVME_SC_SUCCESS = 0x00,
NVME_SC_INVALID_OPCODE = 0x01,
NVME_SC_INVALID_FIELD = 0x02,
NVME_SC_COMMAND_ID_CONFLICT = 0x03,
NVME_SC_DATA_TRANSFER_ERROR = 0x04,
NVME_SC_ABORTED_POWER_LOSS = 0x05,
NVME_SC_INTERNAL_DEVICE_ERROR = 0x06,
NVME_SC_ABORTED_BY_REQUEST = 0x07,
NVME_SC_ABORTED_SQ_DELETION = 0x08,
NVME_SC_ABORTED_FAILED_FUSED = 0x09,
NVME_SC_ABORTED_MISSING_FUSED = 0x0a,
NVME_SC_INVALID_NAMESPACE_OR_FORMAT = 0x0b,
NVME_SC_COMMAND_SEQUENCE_ERROR = 0x0c,
NVME_SC_LBA_OUT_OF_RANGE = 0x80,
NVME_SC_CAPACITY_EXCEEDED = 0x81,
NVME_SC_NAMESPACE_NOT_READY = 0x82,
};
/* command specific status codes */
enum nvme_command_specific_status_code {
NVME_SC_COMPLETION_QUEUE_INVALID = 0x00,
NVME_SC_INVALID_QUEUE_IDENTIFIER = 0x01,
NVME_SC_MAXIMUM_QUEUE_SIZE_EXCEEDED = 0x02,
NVME_SC_ABORT_COMMAND_LIMIT_EXCEEDED = 0x03,
/* 0x04 - reserved */
NVME_SC_ASYNC_EVENT_REQUEST_LIMIT_EXCEEDED = 0x05,
NVME_SC_INVALID_FIRMWARE_SLOT = 0x06,
NVME_SC_INVALID_FIRMWARE_IMAGE = 0x07,
NVME_SC_INVALID_INTERRUPT_VECTOR = 0x08,
NVME_SC_INVALID_LOG_PAGE = 0x09,
NVME_SC_INVALID_FORMAT = 0x0a,
NVME_SC_FIRMWARE_REQUIRES_RESET = 0x0b,
NVME_SC_CONFLICTING_ATTRIBUTES = 0x80,
NVME_SC_INVALID_PROTECTION_INFO = 0x81,
NVME_SC_ATTEMPTED_WRITE_TO_RO_PAGE = 0x82,
};
/* media error status codes */
enum nvme_media_error_status_code {
NVME_SC_WRITE_FAULTS = 0x80,
NVME_SC_UNRECOVERED_READ_ERROR = 0x81,
NVME_SC_GUARD_CHECK_ERROR = 0x82,
NVME_SC_APPLICATION_TAG_CHECK_ERROR = 0x83,
NVME_SC_REFERENCE_TAG_CHECK_ERROR = 0x84,
NVME_SC_COMPARE_FAILURE = 0x85,
NVME_SC_ACCESS_DENIED = 0x86,
};
/* admin opcodes */
enum nvme_admin_opcode {
NVME_OPC_DELETE_IO_SQ = 0x00,
NVME_OPC_CREATE_IO_SQ = 0x01,
NVME_OPC_GET_LOG_PAGE = 0x02,
/* 0x03 - reserved */
NVME_OPC_DELETE_IO_CQ = 0x04,
NVME_OPC_CREATE_IO_CQ = 0x05,
NVME_OPC_IDENTIFY = 0x06,
/* 0x07 - reserved */
NVME_OPC_ABORT = 0x08,
NVME_OPC_SET_FEATURES = 0x09,
NVME_OPC_GET_FEATURES = 0x0a,
/* 0x0b - reserved */
NVME_OPC_ASYNC_EVENT_REQUEST = 0x0c,
NVME_OPC_NAMESPACE_MANAGEMENT = 0x0d,
/* 0x0e-0x0f - reserved */
NVME_OPC_FIRMWARE_ACTIVATE = 0x10,
NVME_OPC_FIRMWARE_IMAGE_DOWNLOAD = 0x11,
NVME_OPC_NAMESPACE_ATTACHMENT = 0x15,
NVME_OPC_FORMAT_NVM = 0x80,
NVME_OPC_SECURITY_SEND = 0x81,
NVME_OPC_SECURITY_RECEIVE = 0x82,
};
/* nvme nvm opcodes */
enum nvme_nvm_opcode {
NVME_OPC_FLUSH = 0x00,
NVME_OPC_WRITE = 0x01,
NVME_OPC_READ = 0x02,
/* 0x03 - reserved */
NVME_OPC_WRITE_UNCORRECTABLE = 0x04,
NVME_OPC_COMPARE = 0x05,
/* 0x06-0x07 - reserved */
NVME_OPC_DATASET_MANAGEMENT = 0x09,
};
enum nvme_feature {
/* 0x00 - reserved */
NVME_FEAT_ARBITRATION = 0x01,
NVME_FEAT_POWER_MANAGEMENT = 0x02,
NVME_FEAT_LBA_RANGE_TYPE = 0x03,
NVME_FEAT_TEMPERATURE_THRESHOLD = 0x04,
NVME_FEAT_ERROR_RECOVERY = 0x05,
NVME_FEAT_VOLATILE_WRITE_CACHE = 0x06,
NVME_FEAT_NUMBER_OF_QUEUES = 0x07,
NVME_FEAT_INTERRUPT_COALESCING = 0x08,
NVME_FEAT_INTERRUPT_VECTOR_CONFIGURATION = 0x09,
NVME_FEAT_WRITE_ATOMICITY = 0x0A,
NVME_FEAT_ASYNC_EVENT_CONFIGURATION = 0x0B,
NVME_FEAT_AUTONOMOUS_POWER_STATE_TRANSITION = 0x0C,
NVME_FEAT_HOST_MEMORY_BUFFER = 0x0D,
NVME_FEAT_TIMESTAMP = 0x0E,
NVME_FEAT_KEEP_ALIVE_TIMER = 0x0F,
NVME_FEAT_HOST_CONTROLLED_THERMAL_MGMT = 0x10,
NVME_FEAT_NON_OP_POWER_STATE_CONFIG = 0x11,
/* 0x12-0x77 - reserved */
/* 0x78-0x7f - NVMe Management Interface */
NVME_FEAT_SOFTWARE_PROGRESS_MARKER = 0x80,
/* 0x81-0xBF - command set specific (reserved) */
/* 0xC0-0xFF - vendor specific */
};
enum nvme_dsm_attribute {
NVME_DSM_ATTR_INTEGRAL_READ = 0x1,
NVME_DSM_ATTR_INTEGRAL_WRITE = 0x2,
NVME_DSM_ATTR_DEALLOCATE = 0x4,
};
enum nvme_activate_action {
NVME_AA_REPLACE_NO_ACTIVATE = 0x0,
NVME_AA_REPLACE_ACTIVATE = 0x1,
NVME_AA_ACTIVATE = 0x2,
};
struct nvme_power_state {
/** Maximum Power */
uint16_t mp; /* Maximum Power */
uint8_t ps_rsvd1;
uint8_t mps_nops; /* Max Power Scale, Non-Operational State */
uint32_t enlat; /* Entry Latency */
uint32_t exlat; /* Exit Latency */
uint8_t rrt; /* Relative Read Throughput */
uint8_t rrl; /* Relative Read Latency */
uint8_t rwt; /* Relative Write Throughput */
uint8_t rwl; /* Relative Write Latency */
uint16_t idlp; /* Idle Power */
uint8_t ips; /* Idle Power Scale */
uint8_t ps_rsvd8;
uint16_t actp; /* Active Power */
uint8_t apw_aps; /* Active Power Workload, Active Power Scale */
uint8_t ps_rsvd10[9];
} __packed;
_Static_assert(sizeof(struct nvme_power_state) == 32, "bad size for nvme_power_state");
#define NVME_SERIAL_NUMBER_LENGTH 20
#define NVME_MODEL_NUMBER_LENGTH 40
#define NVME_FIRMWARE_REVISION_LENGTH 8
struct nvme_controller_data {
/* bytes 0-255: controller capabilities and features */
/** pci vendor id */
uint16_t vid;
/** pci subsystem vendor id */
uint16_t ssvid;
/** serial number */
uint8_t sn[NVME_SERIAL_NUMBER_LENGTH];
/** model number */
uint8_t mn[NVME_MODEL_NUMBER_LENGTH];
/** firmware revision */
uint8_t fr[NVME_FIRMWARE_REVISION_LENGTH];
/** recommended arbitration burst */
uint8_t rab;
/** ieee oui identifier */
uint8_t ieee[3];
/** multi-interface capabilities */
uint8_t mic;
/** maximum data transfer size */
uint8_t mdts;
/** Controller ID */
uint16_t ctrlr_id;
/** Version */
uint32_t ver;
/** RTD3 Resume Latency */
uint32_t rtd3r;
/** RTD3 Enter Latency */
uint32_t rtd3e;
/** Optional Asynchronous Events Supported */
uint32_t oaes; /* bitfield really */
/** Controller Attributes */
uint32_t ctratt; /* bitfield really */
uint8_t reserved1[12];
/** FRU Globally Unique Identifier */
uint8_t fguid[16];
uint8_t reserved2[128];
/* bytes 256-511: admin command set attributes */
/** optional admin command support */
uint16_t oacs;
/** abort command limit */
uint8_t acl;
/** asynchronous event request limit */
uint8_t aerl;
/** firmware updates */
uint8_t frmw;
/** log page attributes */
uint8_t lpa;
/** error log page entries */
uint8_t elpe;
/** number of power states supported */
uint8_t npss;
/** admin vendor specific command configuration */
uint8_t avscc;
/** Autonomous Power State Transition Attributes */
uint8_t apsta;
/** Warning Composite Temperature Threshold */
uint16_t wctemp;
/** Critical Composite Temperature Threshold */
uint16_t cctemp;
/** Maximum Time for Firmware Activation */
uint16_t mtfa;
/** Host Memory Buffer Preferred Size */
uint32_t hmpre;
/** Host Memory Buffer Minimum Size */
uint32_t hmmin;
/** Name space capabilities */
struct {
/* if nsmgmt, report tnvmcap and unvmcap */
uint8_t tnvmcap[16];
uint8_t unvmcap[16];
} __packed untncap;
/** Replay Protected Memory Block Support */
uint32_t rpmbs; /* Really a bitfield */
/** Extended Device Self-test Time */
uint16_t edstt;
/** Device Self-test Options */
uint8_t dsto; /* Really a bitfield */
/** Firmware Update Granularity */
uint8_t fwug;
/** Keep Alive Support */
uint16_t kas;
/** Host Controlled Thermal Management Attributes */
uint16_t hctma; /* Really a bitfield */
/** Minimum Thermal Management Temperature */
uint16_t mntmt;
/** Maximum Thermal Management Temperature */
uint16_t mxtmt;
/** Sanitize Capabilities */
uint32_t sanicap; /* Really a bitfield */
uint8_t reserved3[180];
/* bytes 512-703: nvm command set attributes */
/** submission queue entry size */
uint8_t sqes;
/** completion queue entry size */
uint8_t cqes;
/** Maximum Outstanding Commands */
uint16_t maxcmd;
/** number of namespaces */
uint32_t nn;
/** optional nvm command support */
uint16_t oncs;
/** fused operation support */
uint16_t fuses;
/** format nvm attributes */
uint8_t fna;
/** volatile write cache */
uint8_t vwc;
/* TODO: flesh out remaining nvm command set attributes */
uint8_t reserved5[178];
/* bytes 704-2047: i/o command set attributes */
uint8_t reserved6[1344];
/* bytes 2048-3071: power state descriptors */
struct nvme_power_state power_state[32];
/* bytes 3072-4095: vendor specific */
uint8_t vs[1024];
} __packed __aligned(4);
_Static_assert(sizeof(struct nvme_controller_data) == 4096, "bad size for nvme_controller_data");
struct nvme_namespace_data {
/** namespace size */
uint64_t nsze;
/** namespace capacity */
uint64_t ncap;
/** namespace utilization */
uint64_t nuse;
/** namespace features */
uint8_t nsfeat;
/** number of lba formats */
uint8_t nlbaf;
/** formatted lba size */
uint8_t flbas;
/** metadata capabilities */
uint8_t mc;
/** end-to-end data protection capabilities */
uint8_t dpc;
/** end-to-end data protection type settings */
uint8_t dps;
uint8_t reserved5[98];
/** lba format support */
uint32_t lbaf[16];
uint8_t reserved6[192];
uint8_t vendor_specific[3712];
} __packed __aligned(4);
_Static_assert(sizeof(struct nvme_namespace_data) == 4096, "bad size for nvme_namepsace_data");
enum nvme_log_page {
/* 0x00 - reserved */
NVME_LOG_ERROR = 0x01,
NVME_LOG_HEALTH_INFORMATION = 0x02,
NVME_LOG_FIRMWARE_SLOT = 0x03,
NVME_LOG_CHANGED_NAMESPACE = 0x04,
NVME_LOG_COMMAND_EFFECT = 0x05,
/* 0x06-0x7F - reserved */
/* 0x80-0xBF - I/O command set specific */
NVME_LOG_RES_NOTIFICATION = 0x80,
/* 0xC0-0xFF - vendor specific */
/*
* The following are Intel Specific log pages, but they seem
* to be widely implemented.
*/
INTEL_LOG_READ_LAT_LOG = 0xc1,
INTEL_LOG_WRITE_LAT_LOG = 0xc2,
INTEL_LOG_TEMP_STATS = 0xc5,
INTEL_LOG_ADD_SMART = 0xca,
INTEL_LOG_DRIVE_MKT_NAME = 0xdd,
/*
* HGST log page, with lots ofs sub pages.
*/
HGST_INFO_LOG = 0xc1,
};
struct nvme_error_information_entry {
uint64_t error_count;
uint16_t sqid;
uint16_t cid;
uint16_t status;
uint16_t error_location;
uint64_t lba;
uint32_t nsid;
uint8_t vendor_specific;
uint8_t reserved[35];
} __packed __aligned(4);
_Static_assert(sizeof(struct nvme_error_information_entry) == 64, "bad size for nvme_error_information_entry");
struct nvme_health_information_page {
uint8_t critical_warning;
uint16_t temperature;
uint8_t available_spare;
uint8_t available_spare_threshold;
uint8_t percentage_used;
uint8_t reserved[26];
/*
* Note that the following are 128-bit values, but are
* defined as an array of 2 64-bit values.
*/
/* Data Units Read is always in 512-byte units. */
uint64_t data_units_read[2];
/* Data Units Written is always in 512-byte units. */
uint64_t data_units_written[2];
/* For NVM command set, this includes Compare commands. */
uint64_t host_read_commands[2];
uint64_t host_write_commands[2];
/* Controller Busy Time is reported in minutes. */
uint64_t controller_busy_time[2];
uint64_t power_cycles[2];
uint64_t power_on_hours[2];
uint64_t unsafe_shutdowns[2];
uint64_t media_errors[2];
uint64_t num_error_info_log_entries[2];
uint32_t warning_temp_time;
uint32_t error_temp_time;
uint16_t temp_sensor[8];
uint8_t reserved2[296];
} __packed __aligned(4);
_Static_assert(sizeof(struct nvme_health_information_page) == 512, "bad size for nvme_health_information_page");
struct nvme_firmware_page {
uint8_t afi;
uint8_t reserved[7];
uint64_t revision[7]; /* revisions for 7 slots */
uint8_t reserved2[448];
} __packed __aligned(4);
_Static_assert(sizeof(struct nvme_firmware_page) == 512, "bad size for nvme_firmware_page");
struct intel_log_temp_stats
{
uint64_t current;
uint64_t overtemp_flag_last;
uint64_t overtemp_flag_life;
uint64_t max_temp;
uint64_t min_temp;
uint64_t _rsvd[5];
uint64_t max_oper_temp;
uint64_t min_oper_temp;
uint64_t est_offset;
} __packed __aligned(4);
_Static_assert(sizeof(struct intel_log_temp_stats) == 13 * 8, "bad size for intel_log_temp_stats");
#define NVME_TEST_MAX_THREADS 128
struct nvme_io_test {
enum nvme_nvm_opcode opc;
uint32_t size;
uint32_t time; /* in seconds */
uint32_t num_threads;
uint32_t flags;
uint64_t io_completed[NVME_TEST_MAX_THREADS];
};
enum nvme_io_test_flags {
/*
* Specifies whether dev_refthread/dev_relthread should be
* called during NVME_BIO_TEST. Ignored for other test
* types.
*/
NVME_TEST_FLAG_REFTHREAD = 0x1,
};
struct nvme_pt_command {
/*
* cmd is used to specify a passthrough command to a controller or
* namespace.
*
* The following fields from cmd may be specified by the caller:
* * opc (opcode)
* * nsid (namespace id) - for admin commands only
* * cdw10-cdw15
*
* Remaining fields must be set to 0 by the caller.
*/
struct nvme_command cmd;
/*
* cpl returns completion status for the passthrough command
* specified by cmd.
*
* The following fields will be filled out by the driver, for
* consumption by the caller:
* * cdw0
* * status (except for phase)
*
* Remaining fields will be set to 0 by the driver.
*/
struct nvme_completion cpl;
/* buf is the data buffer associated with this passthrough command. */
void * buf;
/*
* len is the length of the data buffer associated with this
* passthrough command.
*/
uint32_t len;
/*
* is_read = 1 if the passthrough command will read data into the
* supplied buffer from the controller.
*
* is_read = 0 if the passthrough command will write data from the
* supplied buffer to the controller.
*/
uint32_t is_read;
/*
* driver_lock is used by the driver only. It must be set to 0
* by the caller.
*/
struct mtx * driver_lock;
};
#define nvme_completion_is_error(cpl) \
(NVME_STATUS_GET_SC((cpl)->status) != 0 || NVME_STATUS_GET_SCT((cpl)->status) != 0)
void nvme_strvis(uint8_t *dst, const uint8_t *src, int dstlen, int srclen);
#ifdef _KERNEL
struct bio;
struct nvme_namespace;
struct nvme_controller;
struct nvme_consumer;
typedef void (*nvme_cb_fn_t)(void *, const struct nvme_completion *);
typedef void *(*nvme_cons_ns_fn_t)(struct nvme_namespace *, void *);
typedef void *(*nvme_cons_ctrlr_fn_t)(struct nvme_controller *);
typedef void (*nvme_cons_async_fn_t)(void *, const struct nvme_completion *,
uint32_t, void *, uint32_t);
typedef void (*nvme_cons_fail_fn_t)(void *);
enum nvme_namespace_flags {
NVME_NS_DEALLOCATE_SUPPORTED = 0x1,
NVME_NS_FLUSH_SUPPORTED = 0x2,
};
int nvme_ctrlr_passthrough_cmd(struct nvme_controller *ctrlr,
struct nvme_pt_command *pt,
uint32_t nsid, int is_user_buffer,
int is_admin_cmd);
/* Admin functions */
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);
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);
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);
/* NVM I/O functions */
int nvme_ns_cmd_write(struct nvme_namespace *ns, void *payload,
uint64_t lba, uint32_t lba_count, nvme_cb_fn_t cb_fn,
void *cb_arg);
int nvme_ns_cmd_write_bio(struct nvme_namespace *ns, struct bio *bp,
nvme_cb_fn_t cb_fn, void *cb_arg);
int nvme_ns_cmd_read(struct nvme_namespace *ns, void *payload,
uint64_t lba, uint32_t lba_count, nvme_cb_fn_t cb_fn,
void *cb_arg);
int nvme_ns_cmd_read_bio(struct nvme_namespace *ns, struct bio *bp,
nvme_cb_fn_t cb_fn, void *cb_arg);
int nvme_ns_cmd_deallocate(struct nvme_namespace *ns, void *payload,
uint8_t num_ranges, nvme_cb_fn_t cb_fn,
void *cb_arg);
int nvme_ns_cmd_flush(struct nvme_namespace *ns, nvme_cb_fn_t cb_fn,
void *cb_arg);
int nvme_ns_dump(struct nvme_namespace *ns, void *virt, off_t offset,
size_t len);
/* Registration functions */
struct nvme_consumer * nvme_register_consumer(nvme_cons_ns_fn_t ns_fn,
nvme_cons_ctrlr_fn_t ctrlr_fn,
nvme_cons_async_fn_t async_fn,
nvme_cons_fail_fn_t fail_fn);
void nvme_unregister_consumer(struct nvme_consumer *consumer);
/* Controller helper functions */
device_t nvme_ctrlr_get_device(struct nvme_controller *ctrlr);
const struct nvme_controller_data *
nvme_ctrlr_get_data(struct nvme_controller *ctrlr);
/* Namespace helper functions */
uint32_t nvme_ns_get_max_io_xfer_size(struct nvme_namespace *ns);
uint32_t nvme_ns_get_sector_size(struct nvme_namespace *ns);
uint64_t nvme_ns_get_num_sectors(struct nvme_namespace *ns);
uint64_t nvme_ns_get_size(struct nvme_namespace *ns);
uint32_t nvme_ns_get_flags(struct nvme_namespace *ns);
const char * nvme_ns_get_serial_number(struct nvme_namespace *ns);
const char * nvme_ns_get_model_number(struct nvme_namespace *ns);
const struct nvme_namespace_data *
nvme_ns_get_data(struct nvme_namespace *ns);
uint32_t nvme_ns_get_stripesize(struct nvme_namespace *ns);
int nvme_ns_bio_process(struct nvme_namespace *ns, struct bio *bp,
nvme_cb_fn_t cb_fn);
/*
* Command building helper functions -- shared with CAM
* These functions assume allocator zeros out cmd structure
* CAM's xpt_get_ccb and the request allocator for nvme both
* do zero'd allocations.
*/
static inline
void nvme_ns_flush_cmd(struct nvme_command *cmd, uint32_t nsid)
{
cmd->opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_FLUSH);
cmd->nsid = htole32(nsid);
}
static inline
void nvme_ns_rw_cmd(struct nvme_command *cmd, uint32_t rwcmd, uint32_t nsid,
uint64_t lba, uint32_t count)
{
cmd->opc_fuse = NVME_CMD_SET_OPC(rwcmd);
cmd->nsid = htole32(nsid);
cmd->cdw10 = htole32(lba & 0xffffffffu);
cmd->cdw11 = htole32(lba >> 32);
cmd->cdw12 = htole32(count-1);
}
static inline
void nvme_ns_write_cmd(struct nvme_command *cmd, uint32_t nsid,
uint64_t lba, uint32_t count)
{
nvme_ns_rw_cmd(cmd, NVME_OPC_WRITE, nsid, lba, count);
}
static inline
void nvme_ns_read_cmd(struct nvme_command *cmd, uint32_t nsid,
uint64_t lba, uint32_t count)
{
nvme_ns_rw_cmd(cmd, NVME_OPC_READ, nsid, lba, count);
}
static inline
void nvme_ns_trim_cmd(struct nvme_command *cmd, uint32_t nsid,
uint32_t num_ranges)
{
cmd->opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_DATASET_MANAGEMENT);
cmd->nsid = htole32(nsid);
cmd->cdw10 = htole32(num_ranges - 1);
cmd->cdw11 = htole32(NVME_DSM_ATTR_DEALLOCATE);
}
extern int nvme_use_nvd;
#endif /* _KERNEL */
/* Endianess conversion functions for NVMe structs */
static inline
void nvme_completion_swapbytes(struct nvme_completion *s)
{
s->cdw0 = le32toh(s->cdw0);
/* omit rsvd1 */
s->sqhd = le16toh(s->sqhd);
s->sqid = le16toh(s->sqid);
/* omit cid */
s->status = le16toh(s->status);
}
static inline
void nvme_power_state_swapbytes(struct nvme_power_state *s)
{
s->mp = le16toh(s->mp);
s->enlat = le32toh(s->enlat);
s->exlat = le32toh(s->exlat);
s->idlp = le16toh(s->idlp);
s->actp = le16toh(s->actp);
}
static inline
void nvme_controller_data_swapbytes(struct nvme_controller_data *s)
{
int i;
s->vid = le16toh(s->vid);
s->ssvid = le16toh(s->ssvid);
s->ctrlr_id = le16toh(s->ctrlr_id);
s->ver = le32toh(s->ver);
s->rtd3r = le32toh(s->rtd3r);
s->rtd3e = le32toh(s->rtd3e);
s->oaes = le32toh(s->oaes);
s->ctratt = le32toh(s->ctratt);
s->oacs = le16toh(s->oacs);
s->wctemp = le16toh(s->wctemp);
s->cctemp = le16toh(s->cctemp);
s->mtfa = le16toh(s->mtfa);
s->hmpre = le32toh(s->hmpre);
s->hmmin = le32toh(s->hmmin);
s->rpmbs = le32toh(s->rpmbs);
s->edstt = le16toh(s->edstt);
s->kas = le16toh(s->kas);
s->hctma = le16toh(s->hctma);
s->mntmt = le16toh(s->mntmt);
s->mxtmt = le16toh(s->mxtmt);
s->sanicap = le32toh(s->sanicap);
s->maxcmd = le16toh(s->maxcmd);
s->nn = le32toh(s->nn);
s->oncs = le16toh(s->oncs);
s->fuses = le16toh(s->fuses);
for (i = 0; i < 32; i++)
nvme_power_state_swapbytes(&s->power_state[i]);
}
static inline
void nvme_namespace_data_swapbytes(struct nvme_namespace_data *s)
{
int i;
s->nsze = le64toh(s->nsze);
s->ncap = le64toh(s->ncap);
s->nuse = le64toh(s->nuse);
for (i = 0; i < 16; i++)
s->lbaf[i] = le32toh(s->lbaf[i]);
}
static inline
void nvme_error_information_entry_swapbytes(struct nvme_error_information_entry *s)
{
s->error_count = le64toh(s->error_count);
s->sqid = le16toh(s->sqid);
s->cid = le16toh(s->cid);
s->status = le16toh(s->status);
s->error_location = le16toh(s->error_location);
s->lba = le64toh(s->lba);
s->nsid = le32toh(s->nsid);
}
static inline
void nvme_le128toh(void *p)
{
#if _BYTE_ORDER != _LITTLE_ENDIAN
/* Swap 16 bytes in place */
char *tmp = (char*)p;
char b;
int i;
for (i = 0; i < 8; i++) {
b = tmp[i];
tmp[i] = tmp[15-i];
tmp[15-i] = b;
}
#else
(void)p;
#endif
}
static inline
void nvme_health_information_page_swapbytes(struct nvme_health_information_page *s)
{
int i;
s->temperature = le16toh(s->temperature);
nvme_le128toh((void *)s->data_units_read);
nvme_le128toh((void *)s->data_units_written);
nvme_le128toh((void *)s->host_read_commands);
nvme_le128toh((void *)s->host_write_commands);
nvme_le128toh((void *)s->controller_busy_time);
nvme_le128toh((void *)s->power_cycles);
nvme_le128toh((void *)s->power_on_hours);
nvme_le128toh((void *)s->unsafe_shutdowns);
nvme_le128toh((void *)s->media_errors);
nvme_le128toh((void *)s->num_error_info_log_entries);
s->warning_temp_time = le32toh(s->warning_temp_time);
s->error_temp_time = le32toh(s->error_temp_time);
for (i = 0; i < 8; i++)
s->temp_sensor[i] = le16toh(s->temp_sensor[i]);
}
static inline
void nvme_firmware_page_swapbytes(struct nvme_firmware_page *s)
{
int i;
for (i = 0; i < 7; i++)
s->revision[i] = le64toh(s->revision[i]);
}
static inline
void intel_log_temp_stats_swapbytes(struct intel_log_temp_stats *s)
{
s->current = le64toh(s->current);
s->overtemp_flag_last = le64toh(s->overtemp_flag_last);
s->overtemp_flag_life = le64toh(s->overtemp_flag_life);
s->max_temp = le64toh(s->max_temp);
s->min_temp = le64toh(s->min_temp);
/* omit _rsvd[] */
s->max_oper_temp = le64toh(s->max_oper_temp);
s->min_oper_temp = le64toh(s->min_oper_temp);
s->est_offset = le64toh(s->est_offset);
}
#endif /* __NVME_H__ */
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