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Merge db21c6a240 into ddf42bad82

This commit is contained in:
GUI 2024-11-12 12:56:48 +08:00 committed by GitHub
parent ddf42bad82 db21c6a240
commit b8f2172c8b
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7 changed files with 2417 additions and 0 deletions
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1
components/drivers/Kconfig
View File

@ -21,6 +21,7 @@ rsource "touch/Kconfig"
rsource "graphic/Kconfig"
rsource "hwcrypto/Kconfig"
rsource "wlan/Kconfig"
rsource "nvme/Kconfig"
rsource "virtio/Kconfig"
rsource "ofw/Kconfig"
rsource "pci/Kconfig"

899
components/drivers/include/drivers/nvme.h Normal file
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@ -0,0 +1,899 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#ifndef __NVME_H__
#define __NVME_H__
#include <rthw.h>
#include <rtthread.h>
#include <drivers/blk.h>
#define NVME_RSVD(offset, bytes_size) rt_uint8_t __rsvd##offset[bytes_size]
enum
{
/*
* Generic Command Status:
*/
RT_NVME_SC_SUCCESS = 0x0,
RT_NVME_SC_INVALID_OPCODE = 0x1,
RT_NVME_SC_INVALID_FIELD = 0x2,
RT_NVME_SC_CMDID_CONFLICT = 0x3,
RT_NVME_SC_DATA_XFER_ERROR = 0x4,
RT_NVME_SC_POWER_LOSS = 0x5,
RT_NVME_SC_INTERNAL = 0x6,
RT_NVME_SC_ABORT_REQ = 0x7,
RT_NVME_SC_ABORT_QUEUE = 0x8,
RT_NVME_SC_FUSED_FAIL = 0x9,
RT_NVME_SC_FUSED_MISSING = 0xa,
RT_NVME_SC_INVALID_NS = 0xb,
RT_NVME_SC_CMD_SEQ_ERROR = 0xc,
RT_NVME_SC_SGL_INVALID_LAST = 0xd,
RT_NVME_SC_SGL_INVALID_COUNT = 0xe,
RT_NVME_SC_SGL_INVALID_DATA = 0xf,
RT_NVME_SC_SGL_INVALID_METADATA = 0x10,
RT_NVME_SC_SGL_INVALID_TYPE = 0x11,
RT_NVME_SC_CMB_INVALID_USE = 0x12,
RT_NVME_SC_PRP_INVALID_OFFSET = 0x13,
RT_NVME_SC_ATOMIC_WU_EXCEEDED = 0x14,
RT_NVME_SC_OP_DENIED = 0x15,
RT_NVME_SC_SGL_INVALID_OFFSET = 0x16,
RT_NVME_SC_RESERVED = 0x17,
RT_NVME_SC_HOST_ID_INCONSIST = 0x18,
RT_NVME_SC_KA_TIMEOUT_EXPIRED = 0x19,
RT_NVME_SC_KA_TIMEOUT_INVALID = 0x1a,
RT_NVME_SC_ABORTED_PREEMPT_ABORT = 0x1b,
RT_NVME_SC_SANITIZE_FAILED = 0x1c,
RT_NVME_SC_SANITIZE_IN_PROGRESS = 0x1d,
RT_NVME_SC_SGL_INVALID_GRANULARITY = 0x1e,
RT_NVME_SC_CMD_NOT_SUP_CMB_QUEUE = 0x1f,
RT_NVME_SC_NS_WRITE_PROTECTED = 0x20,
RT_NVME_SC_CMD_INTERRUPTED = 0x21,
RT_NVME_SC_TRANSIENT_TR_ERR = 0x22,
RT_NVME_SC_ADMIN_COMMAND_MEDIA_NOT_READY = 0x24,
RT_NVME_SC_INVALID_IO_CMD_SET = 0x2c,
RT_NVME_SC_LBA_RANGE = 0x80,
RT_NVME_SC_CAP_EXCEEDED = 0x81,
RT_NVME_SC_NS_NOT_READY = 0x82,
RT_NVME_SC_RESERVATION_CONFLICT = 0x83,
RT_NVME_SC_FORMAT_IN_PROGRESS = 0x84,
/*
* Command Specific Status:
*/
RT_NVME_SC_CQ_INVALID = 0x100,
RT_NVME_SC_QID_INVALID = 0x101,
RT_NVME_SC_QUEUE_SIZE = 0x102,
RT_NVME_SC_ABORT_LIMIT = 0x103,
RT_NVME_SC_ABORT_MISSING = 0x104,
RT_NVME_SC_ASYNC_LIMIT = 0x105,
RT_NVME_SC_FIRMWARE_SLOT = 0x106,
RT_NVME_SC_FIRMWARE_IMAGE = 0x107,
RT_NVME_SC_INVALID_VECTOR = 0x108,
RT_NVME_SC_INVALID_LOG_PAGE = 0x109,
RT_NVME_SC_INVALID_FORMAT = 0x10a,
RT_NVME_SC_FW_NEEDS_CONV_RESET = 0x10b,
RT_NVME_SC_INVALID_QUEUE = 0x10c,
RT_NVME_SC_FEATURE_NOT_SAVEABLE = 0x10d,
RT_NVME_SC_FEATURE_NOT_CHANGEABLE = 0x10e,
RT_NVME_SC_FEATURE_NOT_PER_NS = 0x10f,
RT_NVME_SC_FW_NEEDS_SUBSYS_RESET = 0x110,
RT_NVME_SC_FW_NEEDS_RESET = 0x111,
RT_NVME_SC_FW_NEEDS_MAX_TIME = 0x112,
RT_NVME_SC_FW_ACTIVATE_PROHIBITED = 0x113,
RT_NVME_SC_OVERLAPPING_RANGE = 0x114,
RT_NVME_SC_NS_INSUFFICIENT_CAP = 0x115,
RT_NVME_SC_NS_ID_UNAVAILABLE = 0x116,
RT_NVME_SC_NS_ALREADY_ATTACHED = 0x118,
RT_NVME_SC_NS_IS_PRIVATE = 0x119,
RT_NVME_SC_NS_NOT_ATTACHED = 0x11a,
RT_NVME_SC_THIN_PROV_NOT_SUPP = 0x11b,
RT_NVME_SC_CTRL_LIST_INVALID = 0x11c,
RT_NVME_SC_SELT_TEST_IN_PROGRESS = 0x11d,
RT_NVME_SC_BP_WRITE_PROHIBITED = 0x11e,
RT_NVME_SC_CTRL_ID_INVALID = 0x11f,
RT_NVME_SC_SEC_CTRL_STATE_INVALID = 0x120,
RT_NVME_SC_CTRL_RES_NUM_INVALID = 0x121,
RT_NVME_SC_RES_ID_INVALID = 0x122,
RT_NVME_SC_PMR_SAN_PROHIBITED = 0x123,
RT_NVME_SC_ANA_GROUP_ID_INVALID = 0x124,
RT_NVME_SC_ANA_ATTACH_FAILED = 0x125,
/*
* I/O Command Set Specific - NVM commands:
*/
RT_NVME_SC_BAD_ATTRIBUTES = 0x180,
RT_NVME_SC_INVALID_PI = 0x181,
RT_NVME_SC_READ_ONLY = 0x182,
RT_NVME_SC_ONCS_NOT_SUPPORTED = 0x183,
/*
* I/O Command Set Specific - Fabrics commands:
*/
RT_NVME_SC_CONNECT_FORMAT = 0x180,
RT_NVME_SC_CONNECT_CTRL_BUSY = 0x181,
RT_NVME_SC_CONNECT_INVALID_PARAM = 0x182,
RT_NVME_SC_CONNECT_RESTART_DISC = 0x183,
RT_NVME_SC_CONNECT_INVALID_HOST = 0x184,
RT_NVME_SC_DISCOVERY_RESTART = 0x190,
RT_NVME_SC_AUTH_REQUIRED = 0x191,
/*
* I/O Command Set Specific - Zoned commands:
*/
RT_NVME_SC_ZONE_BOUNDARY_ERROR = 0x1b8,
RT_NVME_SC_ZONE_FULL = 0x1b9,
RT_NVME_SC_ZONE_READ_ONLY = 0x1ba,
RT_NVME_SC_ZONE_OFFLINE = 0x1bb,
RT_NVME_SC_ZONE_INVALID_WRITE = 0x1bc,
RT_NVME_SC_ZONE_TOO_MANY_ACTIVE = 0x1bd,
RT_NVME_SC_ZONE_TOO_MANY_OPEN = 0x1be,
RT_NVME_SC_ZONE_INVALID_TRANSITION = 0x1bf,
/*
* Media and Data Integrity Errors:
*/
RT_NVME_SC_WRITE_FAULT = 0x280,
RT_NVME_SC_READ_ERROR = 0x281,
RT_NVME_SC_GUARD_CHECK = 0x282,
RT_NVME_SC_APPTAG_CHECK = 0x283,
RT_NVME_SC_REFTAG_CHECK = 0x284,
RT_NVME_SC_COMPARE_FAILED = 0x285,
RT_NVME_SC_ACCESS_DENIED = 0x286,
RT_NVME_SC_UNWRITTEN_BLOCK = 0x287,
/*
* Path-related Errors:
*/
RT_NVME_SC_INTERNAL_PATH_ERROR = 0x300,
RT_NVME_SC_ANA_PERSISTENT_LOSS = 0x301,
RT_NVME_SC_ANA_INACCESSIBLE = 0x302,
RT_NVME_SC_ANA_TRANSITION = 0x303,
RT_NVME_SC_CTRL_PATH_ERROR = 0x360,
RT_NVME_SC_HOST_PATH_ERROR = 0x370,
RT_NVME_SC_HOST_ABORTED_CMD = 0x371,
RT_NVME_SC_CRD = 0x1800,
RT_NVME_SC_MORE = 0x2000,
RT_NVME_SC_DNR = 0x4000,
};
/* Admin commands */
enum
{
RT_NVME_ADMIN_OPCODE_DELETE_SQ = 0x00,
RT_NVME_ADMIN_OPCODE_CREATE_SQ = 0x01,
RT_NVME_ADMIN_OPCODE_GET_LOG_PAGE = 0x02,
RT_NVME_ADMIN_OPCODE_DELETE_CQ = 0x04,
RT_NVME_ADMIN_OPCODE_CREATE_CQ = 0x05,
RT_NVME_ADMIN_OPCODE_IDENTIFY = 0x06,
RT_NVME_ADMIN_OPCODE_ABORT_CMD = 0x08,
RT_NVME_ADMIN_OPCODE_SET_FEATURES = 0x09,
RT_NVME_ADMIN_OPCODE_GET_FEATURES = 0x0a,
RT_NVME_ADMIN_OPCODE_ASYNC_EVENT = 0x0c,
RT_NVME_ADMIN_OPCODE_NS_MGMT = 0x0d,
RT_NVME_ADMIN_OPCODE_ACTIVATE_FW = 0x10,
RT_NVME_ADMIN_OPCODE_DOWNLOAD_FW = 0x11,
RT_NVME_ADMIN_OPCODE_DEV_SELF_TEST = 0x14,
RT_NVME_ADMIN_OPCODE_NS_ATTACH = 0x15,
RT_NVME_ADMIN_OPCODE_KEEP_ALIVE = 0x18,
RT_NVME_ADMIN_OPCODE_DIRECTIVE_SEND = 0x19,
RT_NVME_ADMIN_OPCODE_DIRECTIVE_RECV = 0x1a,
RT_NVME_ADMIN_OPCODE_VIRTUAL_MGMT = 0x1c,
RT_NVME_ADMIN_OPCODE_NVME_MI_SEND = 0x1d,
RT_NVME_ADMIN_OPCODE_NVME_MI_RECV = 0x1e,
RT_NVME_ADMIN_OPCODE_DBBUF = 0x7c,
RT_NVME_ADMIN_OPCODE_FORMAT_NVM = 0x80,
RT_NVME_ADMIN_OPCODE_SECURITY_SEND = 0x81,
RT_NVME_ADMIN_OPCODE_SECURITY_RECV = 0x82,
RT_NVME_ADMIN_OPCODE_SANITIZE_NVM = 0x84,
RT_NVME_ADMIN_OPCODE_GET_LBA_STATUS = 0x86,
RT_NVME_ADMIN_OPCODE_VENDOR_START = 0xc0,
};
/* I/O commands */
enum
{
RT_NVME_CMD_FLUSH = 0x00,
RT_NVME_CMD_WRITE = 0x01,
RT_NVME_CMD_READ = 0x02,
RT_NVME_CMD_WRITE_UNCOR = 0x04,
RT_NVME_CMD_COMPARE = 0x05,
RT_NVME_CMD_WRITE_ZEROES = 0x08,
RT_NVME_CMD_DSM = 0x09,
RT_NVME_CMD_VERIFY = 0x0c,
RT_NVME_CMD_RESV_REGISTER = 0x0d,
RT_NVME_CMD_RESV_REPORT = 0x0e,
RT_NVME_CMD_RESV_ACQUIRE = 0x11,
RT_NVME_CMD_RESV_RELEASE = 0x15,
RT_NVME_CMD_ZONE_MGMT_SEND = 0x79,
RT_NVME_CMD_ZONE_MGMT_RECV = 0x7a,
RT_NVME_CMD_ZONE_APPEND = 0x7d,
RT_NVME_CMD_VENDOR_START = 0x80,
};
enum
{
RT_NVME_PSDT_PRP = 0x0,
RT_NVME_PSDT_SGL_MPTR_CONTIGUOUS = 0x1,
RT_NVME_PSDT_SGL_MPTR_SGL = 0x2,
};
/* Commands flags */
enum
{
RT_NVME_CMD_FLAGS_FUSE_SHIFT = 0x00,
RT_NVME_CMD_FLAGS_PSDT_SHIFT = 0x06,
};
struct rt_nvme_command_common
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
rt_le32_t nsid;
rt_le32_t cmd_dw2[2];
rt_le64_t metadata;
rt_le64_t prp1;
rt_le64_t prp2;
rt_le32_t cmd_dw10[6];
};
rt_packed(struct rt_nvme_sgl_desc
{
rt_le64_t adddress;
rt_le32_t length;
rt_uint8_t reserved[3];
#define SGL_DESC_TYPE_DATA_BLOCK 0x0
#define SGL_DESC_TYPE_BIT_BUCKET 0x1
#define SGL_DESC_TYPE_SEGMENT 0x2
#define SGL_DESC_TYPE_LAST_SEGMENT 0x3
#define SGL_DESC_TYPE_KEYED_DATA_BLOCK 0x4
#define SGL_DESC_TYPE_VENDOR_SPECIFIC 0xf
rt_uint8_t sgl_identify;
});
struct rt_nvme_command_rw
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
rt_le32_t nsid;
NVME_RSVD(8, 8);
rt_le64_t metadata;
union
{
struct
{
rt_le64_t prp1;
rt_le64_t prp2;
};
struct rt_nvme_sgl_desc sgl;
};
rt_le64_t slba;
rt_le16_t length;
rt_le16_t control;
rt_le32_t dsmgmt;
rt_le32_t reftag;
rt_le16_t apptag;
rt_le16_t appmask;
};
enum
{
RT_NVME_RW_LR = 1 << 15,
RT_NVME_RW_FUA = 1 << 14,
RT_NVME_RW_APPEND_PIREMAP = 1 << 9,
RT_NVME_RW_DSM_FREQ_UNSPEC = 0,
RT_NVME_RW_DSM_FREQ_TYPICAL = 1,
RT_NVME_RW_DSM_FREQ_RARE = 2,
RT_NVME_RW_DSM_FREQ_READS = 3,
RT_NVME_RW_DSM_FREQ_WRITES = 4,
RT_NVME_RW_DSM_FREQ_RW = 5,
RT_NVME_RW_DSM_FREQ_ONCE = 6,
RT_NVME_RW_DSM_FREQ_PREFETCH = 7,
RT_NVME_RW_DSM_FREQ_TEMP = 8,
RT_NVME_RW_DSM_LATENCY_NONE = 0 << 4,
RT_NVME_RW_DSM_LATENCY_IDLE = 1 << 4,
RT_NVME_RW_DSM_LATENCY_NORM = 2 << 4,
RT_NVME_RW_DSM_LATENCY_LOW = 3 << 4,
RT_NVME_RW_DSM_SEQ_REQ = 1 << 6,
RT_NVME_RW_DSM_COMPRESSED = 1 << 7,
RT_NVME_RW_PRINFO_PRCHK_REF = 1 << 10,
RT_NVME_RW_PRINFO_PRCHK_APP = 1 << 11,
RT_NVME_RW_PRINFO_PRCHK_GUARD = 1 << 12,
RT_NVME_RW_PRINFO_PRACT = 1 << 13,
RT_NVME_RW_DTYPE_STREAMS = 1 << 4,
RT_NVME_WZ_DEAC = 1 << 9,
};
enum
{
RT_NVME_QUEUE_PHYS_CONTIG = (1 << 0),
RT_NVME_CQ_IRQ_ENABLED = (1 << 1),
RT_NVME_SQ_PRIO_URGENT = (0 << 1),
RT_NVME_SQ_PRIO_HIGH = (1 << 1),
RT_NVME_SQ_PRIO_MEDIUM = (2 << 1),
RT_NVME_SQ_PRIO_LOW = (3 << 1),
RT_NVME_FEAT_ARBITRATION = 0x01,
RT_NVME_FEAT_POWER_MGMT = 0x02,
RT_NVME_FEAT_LBA_RANGE = 0x03,
RT_NVME_FEAT_TEMP_THRESH = 0x04,
RT_NVME_FEAT_ERR_RECOVERY = 0x05,
RT_NVME_FEAT_VOLATILE_WC = 0x06,
RT_NVME_FEAT_NUM_QUEUES = 0x07,
RT_NVME_FEAT_IRQ_COALESCE = 0x08,
RT_NVME_FEAT_IRQ_CONFIG = 0x09,
RT_NVME_FEAT_WRITE_ATOMIC = 0x0a,
RT_NVME_FEAT_ASYNC_EVENT = 0x0b,
RT_NVME_FEAT_AUTO_PST = 0x0c,
RT_NVME_FEAT_SW_PROGRESS = 0x80,
RT_NVME_FEAT_HOST_ID = 0x81,
RT_NVME_FEAT_RESV_MASK = 0x82,
RT_NVME_FEAT_RESV_PERSIST = 0x83,
RT_NVME_LOG_ERROR = 0x01,
RT_NVME_LOG_SMART = 0x02,
RT_NVME_LOG_FW_SLOT = 0x03,
RT_NVME_LOG_RESERVATION = 0x80,
RT_NVME_FWACT_REPL = (0 << 3),
RT_NVME_FWACT_REPL_ACTV = (1 << 3),
RT_NVME_FWACT_ACTV = (2 << 3),
};
struct rt_nvme_command_identify
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
rt_le32_t nsid;
NVME_RSVD(8, 16);
rt_le64_t prp1;
rt_le64_t prp2;
rt_le32_t cns;
NVME_RSVD(64, 20);
};
struct rt_nvme_command_features
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
rt_le32_t nsid;
NVME_RSVD(8, 16);
rt_le64_t prp1;
rt_le64_t prp2;
rt_le32_t fid;
rt_le32_t dword11;
NVME_RSVD(68, 16);
};
struct rt_nvme_command_create_cq
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
NVME_RSVD(4, 20);
rt_le64_t prp1;
NVME_RSVD(32, 8);
rt_le16_t cqid;
rt_le16_t qsize;
rt_le16_t cq_flags;
rt_le16_t irq_vector;
NVME_RSVD(104, 16);
};
struct rt_nvme_command_create_sq
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
NVME_RSVD(4, 20);
rt_le64_t prp1;
NVME_RSVD(32, 8);
rt_le16_t sqid;
rt_le16_t qsize;
rt_le16_t sq_flags;
rt_le16_t cqid;
NVME_RSVD(104, 16);
};
struct rt_nvme_command_delete_queue
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
NVME_RSVD(4, 36);
rt_le16_t qid;
NVME_RSVD(42, 22);
};
struct rt_nvme_command_write_zeroes
{
rt_uint8_t opcode;
rt_uint8_t flags;
rt_uint16_t cmdid;
rt_le32_t nsid;
NVME_RSVD(8, 8);
rt_le64_t metadata;
rt_le64_t prp1;
rt_le64_t prp2;
rt_le64_t slba;
rt_le16_t length;
rt_le16_t control;
rt_le32_t dsmgmt;
rt_le32_t reftag;
rt_le16_t apptag;
rt_le16_t appmask;
};
struct rt_nvme_command
{
union
{
struct rt_nvme_command_common common;
struct rt_nvme_command_rw rw;
struct rt_nvme_command_identify identify;
struct rt_nvme_command_features features;
struct rt_nvme_command_create_cq create_cq;
struct rt_nvme_command_create_sq create_sq;
struct rt_nvme_command_delete_queue delete_queue;
struct rt_nvme_command_write_zeroes write_zeroes;
};
};
struct rt_nvme_completion
{
union
{
rt_le16_t u16;
rt_le32_t u32;
rt_le64_t u64;
} result;
rt_le16_t sq_head; /* How much of this queue may be reclaimed */
rt_le16_t sq_id; /* Submission queue that generated this entry */
rt_uint16_t cmdid; /* Which command completed */
rt_le16_t status; /* Command status */
};
enum
{
RT_NVME_REG_CAP = 0x0000, /* Controller Capabilities */
RT_NVME_REG_VS = 0x0008, /* Version */
RT_NVME_REG_INTMS = 0x000c, /* Interrupt Mask Set */
RT_NVME_REG_INTMC = 0x0010, /* Interrupt Mask Clear */
RT_NVME_REG_CC = 0x0014, /* Controller Configuration */
RT_NVME_REG_CSTS = 0x001c, /* Controller Status */
RT_NVME_REG_NSSR = 0x0020, /* NVM Subsystem Reset */
RT_NVME_REG_AQA = 0x0024, /* Admin Queue Attributes */
RT_NVME_REG_ASQ = 0x0028, /* Admin SQ Base Address */
RT_NVME_REG_ACQ = 0x0030, /* Admin CQ Base Address */
RT_NVME_REG_CMBLOC = 0x0038, /* Controller Memory Buffer Location */
RT_NVME_REG_CMBSZ = 0x003c, /* Controller Memory Buffer Size */
RT_NVME_REG_BPINFO = 0x0040, /* Boot Partition Information */
RT_NVME_REG_BPRSEL = 0x0044, /* Boot Partition Read Select */
RT_NVME_REG_BPMBL = 0x0048, /* Boot Partition Memory Buffer Location */
RT_NVME_REG_CMBMSC = 0x0050, /* Controller Memory Buffer Memory Space Control */
RT_NVME_REG_CRTO = 0x0068, /* Controller Ready Timeouts */
RT_NVME_REG_PMRCAP = 0x0e00, /* Persistent Memory Capabilities */
RT_NVME_REG_PMRCTL = 0x0e04, /* Persistent Memory Region Control */
RT_NVME_REG_PMRSTS = 0x0e08, /* Persistent Memory Region Status */
RT_NVME_REG_PMREBS = 0x0e0c, /* Persistent Memory Region Elasticity Buffer Size */
RT_NVME_REG_PMRSWTP = 0x0e10, /* Persistent Memory Region Sustained Write Throughput */
RT_NVME_REG_DBS = 0x1000, /* SQ 0 Tail Doorbell */
};
#define RT_NVME_CAP_MQES(cap) ((cap) & 0xffff)
#define RT_NVME_CAP_TIMEOUT(cap) (((cap) >> 24) & 0xff)
#define RT_NVME_CAP_STRIDE(cap) (((cap) >> 32) & 0xf)
#define RT_NVME_CAP_MPSMIN(cap) (((cap) >> 48) & 0xf)
#define RT_NVME_CAP_MPSMAX(cap) (((cap) >> 52) & 0xf)
#define RT_NVME_VS(major, minor) (((major) << 16) | ((minor) << 8))
#define RT_NVME_AQ_DEPTH 32
#define RT_NVME_NR_AEN_COMMANDS 1
#define RT_NVME_AQ_BLK_MQ_DEPTH (RT_NVME_AQ_DEPTH - RT_NVME_NR_AEN_COMMANDS)
#define RT_NVME_AQ_MQ_TAG_DEPTH (RT_NVME_AQ_BLK_MQ_DEPTH - 1)
enum
{
RT_NVME_CC_ENABLE = 1 << 0,
RT_NVME_CC_CSS_NVM = 0 << 4,
RT_NVME_CC_MPS_SHIFT = 7,
RT_NVME_CC_ARB_RR = 0 << 11,
RT_NVME_CC_ARB_WRRU = 1 << 11,
RT_NVME_CC_ARB_VS = 7 << 11,
RT_NVME_CC_SHN_NONE = 0 << 14,
RT_NVME_CC_SHN_NORMAL = 1 << 14,
RT_NVME_CC_SHN_ABRUPT = 2 << 14,
RT_NVME_CC_SHN_MASK = 3 << 14,
RT_NVME_CC_IOSQES = 6 << 16,
RT_NVME_CC_IOCQES = 4 << 20,
RT_NVME_CSTS_RDY = 1 << 0,
RT_NVME_CSTS_CFS = 1 << 1,
RT_NVME_CSTS_SHST_NORMAL = 0 << 2,
RT_NVME_CSTS_SHST_OCCUR = 1 << 2,
RT_NVME_CSTS_SHST_CMPLT = 2 << 2,
RT_NVME_CSTS_SHST_MASK = 3 << 2,
};
rt_packed(struct rt_nvme_id_power_state
{
rt_le16_t mp; /* Maximum Power */
NVME_RSVD(1, 1);
rt_uint8_t mxps_nops; /* Max Power Scale, Non-Operational State */
rt_le32_t enlat; /* Entry Latency: microseconds */
rt_le32_t exlat; /* Exit Latency: microseconds */
rt_uint8_t rrt; /* Relative Read Throughput */
rt_uint8_t rrl; /* Relative Read Latency */
rt_uint8_t rwt; /* Relative Write Throughput */
rt_uint8_t rwl; /* Relative Write Latency */
rt_le16_t idlp; /* Idle Power */
rt_uint8_t ips; /* Idle Power Scale */
NVME_RSVD(19, 1);
rt_le16_t actp; /* Active Power */
rt_uint8_t apw_aps; /* Active Power Workload, Active Power Scale */
NVME_RSVD(23, 9);
});
rt_packed(struct rt_nvme_id_ctrl
{
/* Controller Capabilities and Features */
rt_le16_t vid; /* PCI Vendor ID */
rt_le16_t ssvid; /* PCI Subsystem Vendor */
char sn[20]; /* Serial Number */
char mn[40]; /* Model Number */
char fr[8]; /* Firmware Revision */
rt_uint8_t rab; /* Recommended Arbitration Burst */
rt_uint8_t ieee[3]; /* IEEE OUI Identifier */
rt_uint8_t mic; /* Controller Multi-Path I/O and Namespace Sharing Capabilities */
rt_uint8_t mdts; /* Maximum Data Transfer Size */
rt_uint16_t cntlid; /* Controller ID */
rt_uint32_t ver; /* Version */
rt_uint32_t rtd3r; /* RTD3 Resume Latency */
rt_uint32_t rtd3e; /* RTD3 Entry Latency */
rt_uint32_t oaes; /* Optional Asynchronous Events Supported */
#define RT_NVME_ID_CTRATT_ELBAS 15 /* Extended LBA Formats Supported */
#define RT_NVME_ID_CTRATT_DNVMS 14 /* Delete NVM Set */
#define RT_NVME_ID_CTRATT_DEG 13 /* Delete Endurance Group */
#define RT_NVME_ID_CTRATT_VCM 12 /* Variable Capacity Management */
#define RT_NVME_ID_CTRATT_FCM 11 /* Fixed Capacity Management */
#define RT_NVME_ID_CTRATT_MDS 10 /* Multi-Domain Subsystem */
#define RT_NVME_ID_CTRATT_UUIDL 9 /* UUID List */
#define RT_NVME_ID_CTRATT_SQA 8 /* SQ Associations */
#define RT_NVME_ID_CTRATT_NG 7 /* Namespace Granularity */
#define RT_NVME_ID_CTRATT_TBKAS 6 /* Traffic Based Keep Alive Support */
#define RT_NVME_ID_CTRATT_PLM 5 /* Predictable Latency Mode */
#define RT_NVME_ID_CTRATT_EG 4 /* Endurance Groups */
#define RT_NVME_ID_CTRATT_RRL 3 /* Read Recovery Levels */
#define RT_NVME_ID_CTRATT_NVMS 2 /* NVM Sets */
#define RT_NVME_ID_CTRATT_NOPSPM 1 /* Non-Operational Power State Permissive Mode */
#define RT_NVME_ID_CTRATT_HIS 0 /* Host Identifier Support */
rt_uint32_t ctratt; /* Controller Attributes */
rt_uint16_t rrls; /* Read Recovery Levels Supported */
NVME_RSVD(102, 9);
rt_uint8_t cntrltype; /* Controller Type */
rt_uint8_t fguid[16]; /* FRU Globally Unique Identifier */
rt_uint16_t crdt1; /* Command Retry Delay Time 1 */
rt_uint16_t crdt2; /* Command Retry Delay Time 2 */
rt_uint16_t crdt3; /* Command Retry Delay Time 3 */
NVME_RSVD(134, 119);
#define RT_NVME_ID_NVMSR_NVMEE 1 /* NVMe Enclosure */
#define RT_NVME_ID_NVMSR_NVMESD 0 /* NVMe Storage Device */
rt_uint8_t nvmsr; /* NVM Subsystem Report */
#define RT_NVME_ID_VWCI_VWCRV 7 /* VPD Write Cycles Remaining Valid */
#define RT_NVME_ID_VWCI_VWCR 0 /* VPD Write Cycles Remaining */
rt_uint8_t vwci; /* VPD Write Cycle Information */
#define RT_NVME_ID_MEC_PCIEME 1 /* PCIe Port Management Endpoint */
#define RT_NVME_ID_MEC_SMBUSME 0 /* SMBus/I2C Port Management Endpoint */
rt_uint8_t mec; /* Management Endpoint Capabilities */
/* Admin Command Set Attributes & Optional Controller Capabilities */
rt_le16_t oacs; /* Optional Admin Command Support */
rt_uint8_t acl; /* Abort Command Limit */
rt_uint8_t aerl; /* Asynchronous Event Request Limit */
#define RT_NVME_ID_FRMW_SMUD 5 /* Support Multiple Update Detection */
#define RT_NVME_ID_FRMW_FAWR 4 /* Firmware Activation Without Reset */
#define RT_NVME_ID_FRMW_NOFS 1 /* Number Of Firmware Slots */
#define RT_NVME_ID_FRMW_FFSRO 0 /* First Firmware Slot Read Only */
rt_uint8_t frmw; /* Firmware Updates */
rt_uint8_t lpa; /* Log Page Attributes */
rt_uint8_t elpe; /* Error Log Page Entries */
rt_uint8_t npss; /* Number of Power States Support */
rt_uint8_t avscc; /* Admin Vendor Specific Command Configuration */
rt_uint8_t apsta; /* Autonomous Power State Transition Attributes */
rt_le16_t wctemp; /* Warning Composite Temperature Threshold */
rt_le16_t cctemp; /* Critical Composite Temperature Threshold */
rt_uint16_t mtfa; /* Maximum Time for Firmware Activation */
rt_uint32_t hmpre; /* Host Memory Buffer Preferred Size */
rt_uint32_t hmmin; /* Host Memory Buffer Minimum Size */
rt_uint8_t tnvmcap[16]; /* Total NVM Capacity */
rt_uint8_t unvmcap[16]; /* Unallocated NVM Capacity */
#define RT_NVME_ID_RPMBS_ASZ 24 /* Access Size */
#define RT_NVME_ID_RPMBS_TSZ 16 /* Total Size */
#define RT_NVME_ID_RPMBS_AM 3 /* Authentication Method */
#define RT_NVME_ID_RPMBS_NORPMBU 2 /* Number of RPMB Units */
rt_uint32_t rpmbs; /* Replay Protected Memory Block Support */
rt_uint16_t edstt; /* Extended Device Self-test Time */
rt_uint8_t dsto; /* Device Self-test Options */
rt_uint8_t fwug; /* Firmware Update Granularity */
rt_uint16_t kas; /* Keep Alive Support */
rt_uint16_t hctma; /* Host Controlled Thermal Management Attributes */
rt_uint16_t mntmt; /* Minimum Thermal Management Temperature */
rt_uint16_t mxtmt; /* Maximum Thermal Management Temperature */
#define RT_NVME_ID_SANICAP_NODMMAS 30 /* No-Deallocate Modifies Media After Sanitize */
#define RT_NVME_ID_SANICAP_NDI 29 /* No-Deallocate Inhibited */
#define RT_NVME_ID_SANICAP_OWS 2 /* Overwrite Support */
#define RT_NVME_ID_SANICAP_BES 1 /* Block Erase Support */
#define RT_NVME_ID_SANICAP_CES 0 /* Crypto Erase Support */
rt_uint32_t sanicap; /* Sanitize Capabilities */
rt_uint32_t hmminds; /* Host Memory Buffer Minimum Descriptor Entry Size */
rt_uint16_t hmmaxd; /* Host Memory Maximum Descriptors Entries */
rt_uint16_t nsetidmax; /* NVM Set Identifier Maximum */
rt_uint16_t endgidmax; /* Endurance Group Identifier Maximum */
rt_uint8_t anatt; /* ANA Transition Time */
rt_uint8_t anacap; /* Asymmetric Namespace Access Capabilities */
rt_uint32_t anagrpmax; /* ANA Group Identifier Maximum */
rt_uint32_t nanagrpid; /* Number of ANA Group Identifiers */
rt_uint32_t pels; /* Persistent Event Log Size */
rt_uint16_t dmid; /* Domain Identifier */
NVME_RSVD(358, 10);
rt_uint8_t megcap[16]; /* Max Endurance Group Capacity */
NVME_RSVD(384, 128);
/* NVM Command Set Attributes */
rt_uint8_t sqes; /* Submission Queue Entry Size */
rt_uint8_t cqes; /* Completion Queue Entry Size */
rt_le16_t maxcmd; /* Maximum Outstanding Commands */
rt_le32_t nn; /* Number of Namespaces */
rt_le16_t oncs; /* Optional NVM Command Support */
rt_le16_t fuses; /* Fused Operation Support */
rt_uint8_t fna; /* Format NVM Attributes */
rt_uint8_t vwc; /* Volatile Write Cache */
rt_le16_t awun; /* Atomic Write Unit Normal */
rt_le16_t awupf; /* Atomic Write Unit Power Fail */
rt_uint8_t nvscc; /* I/O Command Set Vendor Specific Command Configuration */
rt_uint8_t nwpc; /* Namespace Write Protection Capabilities */
rt_le16_t acwu; /* Atomic Compare & Write Unit */
rt_le16_t cdfs; /* Copy Descriptor Formats Supported */
#define RT_NVME_ID_SGL_SUPPORT_MASK 0x3
rt_le32_t sgls; /* SGL Support */
rt_uint32_t mnan; /* Maximum Number of Allowed Namespaces */
char maxdna[16]; /* Maximum Domain Namespace Attachments */
rt_le32_t maxcna; /* Maximum I/O Controller Namespace Attachments */
NVME_RSVD(564, 204);
rt_uint8_t subnqn[256]; /* NVM Subsystem NVMe Qualified Name */
NVME_RSVD(1024, 768);
rt_le32_t ioccsz; /* I/O Queue Command Capsule Supported Size */
rt_le32_t iorcsz; /* I/O Queue Response Capsule Supported Size */
rt_le16_t icdoff; /* In Capsule Data Offset */
rt_uint8_t ctrattr; /* Fabrics Controller Attributes */
rt_uint8_t msdbd; /* Maximum SGL Data Block Descriptors */
rt_le16_t ofcs; /* Optional Fabric Commands Support */
rt_uint8_t dctype;
NVME_RSVD(1807, 241);
/* Power State Descriptors */
struct rt_nvme_id_power_state psd[32];
/* Vendor Specific */
rt_uint8_t vs[1024];
});
enum
{
RT_NVME_CTRL_CMIC_MULTI_PORT = 1 << 0,
RT_NVME_CTRL_CMIC_MULTI_CTRL = 1 << 1,
RT_NVME_CTRL_CMIC_ANA = 1 << 3,
RT_NVME_CTRL_ONCS_COMPARE = 1 << 0,
RT_NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
RT_NVME_CTRL_ONCS_DSM = 1 << 2,
RT_NVME_CTRL_ONCS_WRITE_ZEROES = 1 << 3,
RT_NVME_CTRL_ONCS_RESERVATIONS = 1 << 5,
RT_NVME_CTRL_ONCS_TIMESTAMP = 1 << 6,
RT_NVME_CTRL_VWC_PRESENT = 1 << 0,
RT_NVME_CTRL_OACS_SEC_SUPP = 1 << 0,
RT_NVME_CTRL_OACS_NS_MNGT_SUPP = 1 << 3,
RT_NVME_CTRL_OACS_DIRECTIVES = 1 << 5,
RT_NVME_CTRL_OACS_DBBUF_SUPP = 1 << 8,
RT_NVME_CTRL_LPA_CMD_EFFECTS_LOG = 1 << 1,
RT_NVME_CTRL_CTRATT_128_ID = 1 << 0,
RT_NVME_CTRL_CTRATT_NON_OP_PSP = 1 << 1,
RT_NVME_CTRL_CTRATT_NVM_SETS = 1 << 2,
RT_NVME_CTRL_CTRATT_READ_RECV_LVLS = 1 << 3,
RT_NVME_CTRL_CTRATT_ENDURANCE_GROUPS = 1 << 4,
RT_NVME_CTRL_CTRATT_PREDICTABLE_LAT = 1 << 5,
RT_NVME_CTRL_CTRATT_NAMESPACE_GRANULARITY = 1 << 7,
RT_NVME_CTRL_CTRATT_UUID_LIST = 1 << 9,
};
struct rt_nvme_lba_format
{
rt_le16_t ms; /* Metadata size */
rt_uint8_t ds; /* Data size */
rt_uint8_t rp; /* Relative performance */
};
rt_packed(struct rt_nvme_id_ns
{
rt_le64_t nsze; /* Namespace size */
rt_le64_t ncap; /* Namespace capacity */
rt_le64_t nuse; /* Namespace utilization */
rt_uint8_t nsfeat; /* Namespace features */
rt_uint8_t nlbaf; /* Number of lba formats */
rt_uint8_t flbas; /* Formatted lba size */
rt_uint8_t mc; /* Metadata capabilities */
rt_uint8_t dpc; /* End-to-end data protection capabilities */
rt_uint8_t dps; /* End-to-end data protection type settings */
rt_uint8_t nmic; /* Namespace Multi-path I/O and Namespace Sharing Capabilities */
rt_uint8_t rescap; /* Reservation Capabilities */
rt_uint8_t fpi; /* Format Progress Indicator */
rt_uint8_t dlfeat; /* Deallocate Logical Block Features */
rt_le16_t nawun; /* Namespace Atomic Write Unit Normal */
rt_le16_t nawupf; /* Namespace Atomic Write Unit Power Fail */
rt_le16_t nacwu; /* Namespace Atomic Compare & Write Unit */
rt_le16_t nabsn; /* Namespace Atomic Boundary Size Normal */
rt_le16_t nabo; /* Namespace Atomic Boundary Offset */
rt_le16_t nabspf; /* Namespace Atomic Boundary Size Power Fail */
rt_uint16_t noiob; /* Namespace Optimal IO Boundary */
rt_le64_t nvmcap[2]; /* NVMe Capacity */
rt_uint16_t npwg; /* Namespace Preferred Write Granularity */
rt_uint16_t npwa; /* Namespace Preferred Write Alignment */
rt_uint16_t npdg; /* Namespace Preferred Deallocate Granularity */
rt_uint16_t npda; /* Namespace Preferred Deallocate Alignment */
rt_uint16_t nows; /* Namespace Optimal Write Size */
NVME_RSVD(118, 18);
rt_uint32_t anagrpid; /* ANA Group Identifier */
NVME_RSVD(139, 3);
rt_uint8_t nsattr; /* Namespace Attributes */
rt_uint16_t nvmsetid; /* NVMe Set Identifier */
rt_uint16_t endgid; /* Endurance Group Identifier */
rt_uint8_t nguid[16]; /* Namespace Globally Unique Identifier */
rt_uint8_t eui64[8]; /* IEEE Extended Unique Identifier */
/* Logical Block Address Format */
struct rt_nvme_lba_format lbaf[16];
NVME_RSVD(171, 192);
/* Vendor specific */
rt_uint8_t vs[3712];
});
enum
{
RT_NVME_NS_FEAT_THIN = 1 << 0,
RT_NVME_NS_FLBAS_LBA_MASK = 0xf,
RT_NVME_NS_FLBAS_LBA_UMASK = 0x60,
RT_NVME_NS_FLBAS_LBA_SHIFT = 1,
RT_NVME_NS_FLBAS_META_EXT = 0x10,
RT_NVME_LBAF_RP_BEST = 0,
RT_NVME_LBAF_RP_BETTER = 1,
RT_NVME_LBAF_RP_GOOD = 2,
RT_NVME_LBAF_RP_DEGRADED = 3,
RT_NVME_NS_DPC_PI_LAST = 1 << 4,
RT_NVME_NS_DPC_PI_FIRST = 1 << 3,
RT_NVME_NS_DPC_PI_TYPE3 = 1 << 2,
RT_NVME_NS_DPC_PI_TYPE2 = 1 << 1,
RT_NVME_NS_DPC_PI_TYPE1 = 1 << 0,
RT_NVME_NS_DPS_PI_FIRST = 1 << 3,
RT_NVME_NS_DPS_PI_MASK = 0x7,
RT_NVME_NS_DPS_PI_TYPE1 = 1,
RT_NVME_NS_DPS_PI_TYPE2 = 2,
RT_NVME_NS_DPS_PI_TYPE3 = 3,
};
struct rt_nvme_ops;
struct rt_nvme_controller;
/*
* An NVM Express queue. Each device has at least two (one for admin commands
* and one for I/O commands).
*/
struct rt_nvme_queue
{
struct rt_nvme_controller *nvme;
struct rt_nvme_command *sq_cmds;
struct rt_nvme_completion *cq_entry;
rt_ubase_t sq_cmds_phy;
rt_ubase_t cq_entry_phy;
rt_uint32_t *doorbell;
rt_uint16_t qid;
rt_uint16_t depth;
rt_uint16_t sq_head;
rt_uint16_t sq_tail;
rt_uint16_t cq_head;
rt_uint16_t cq_phase;
rt_err_t err;
struct rt_nvme_command *cmd;
struct rt_completion done;
struct rt_spinlock lock;
};
struct rt_nvme_controller
{
rt_list_t list;
struct rt_device *dev;
int nvme_id;
char name[RT_NAME_MAX];
void *regs;
rt_uint64_t cap;
rt_uint32_t page_shift;
rt_uint32_t page_size;
rt_uint32_t queue_depth;
rt_uint32_t io_queue_max;
rt_uint32_t ctrl_config;
rt_uint32_t max_transfer_shift:8;
rt_uint32_t volatile_write_cache:8;
rt_uint32_t write_zeroes:1;
rt_uint32_t sgl_mode:2;
rt_uint32_t doorbell_stride;
rt_uint32_t *doorbell_tbl;
const struct rt_nvme_ops *ops;
#define RT_USING_NVME_QUEUE (1 + (RT_USING_NVME_IO_QUEUE * RT_CPUS_NR))
int irqs_nr;
int irqs[RT_USING_NVME_QUEUE];
union
{
struct
{
struct rt_nvme_queue admin_queue;
struct rt_nvme_queue io_queues[RT_USING_NVME_IO_QUEUE * RT_CPUS_NR];
};
struct rt_nvme_queue queue[RT_USING_NVME_QUEUE];
};
volatile rt_atomic_t cmdid;
volatile rt_atomic_t ioqid[RT_CPUS_NR];
rt_list_t ns_nodes;
};
struct rt_nvme_device
{
struct rt_blk_disk parent;
struct rt_nvme_controller *ctrl;
rt_list_t list;
rt_uint32_t nsid;
rt_uint32_t lba_shift;
struct rt_nvme_id_ns id;
};
#define rt_disk_to_nvme_device(disk) rt_container_of(disk, struct rt_nvme_device, parent)
struct rt_nvme_ops
{
const char *name;
/* Controller-specific NVM Express queue setup */
rt_err_t (*setup_queue)(struct rt_nvme_queue *queue);
/* Controller-specific NVM Express queue cleanup */
rt_err_t (*cleanup_queue)(struct rt_nvme_queue *queue);
/* Controller-specific NVM Express command submission */
rt_err_t (*submit_cmd)(struct rt_nvme_queue *queue, struct rt_nvme_command *cmd);
/* Controller-specific NVM Express command completion */
void (*complete_cmd)(struct rt_nvme_queue *queue, struct rt_nvme_command *cmd);
};
rt_err_t rt_nvme_controller_register(struct rt_nvme_controller *nvme);
rt_err_t rt_nvme_controller_unregister(struct rt_nvme_controller *nvme);
#endif /* __NVME_H__ */

4
components/drivers/include/rtdevice.h
View File

@ -45,6 +45,10 @@ extern "C" {
#include "drivers/core/power_domain.h"
#include "drivers/platform.h"
#ifdef RT_USING_NVME
#include "drivers/nvme.h"
#endif
#ifdef RT_USING_OFW
#include "drivers/ofw.h"
#include "drivers/ofw_fdt.h"

24
components/drivers/nvme/Kconfig Normal file
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@ -0,0 +1,24 @@
menuconfig RT_USING_NVME
bool "Using Non-Volatile Memory Express (NVME) device drivers"
depends on RT_USING_DM
depends on RT_USING_BLK
depends on RT_USING_DMA
default n
config RT_USING_NVME_IO_QUEUE
int "Number of I/O Command queue"
depends on RT_USING_NVME
default 2 if RT_THREAD_PRIORITY_8
default 4 if RT_THREAD_PRIORITY_32
default 8 if RT_THREAD_PRIORITY_256
config RT_NVME_PCI
bool "NVME support on PCI bus"
depends on RT_USING_NVME
depends on RT_USING_PCI
default y
if RT_USING_NVME && SOC_DM_NVME
comment "SoC Device Drivers"
source "$(SOC_DM_DIR)/nvme/Kconfig"
endif

18
components/drivers/nvme/SConscript Normal file
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@ -0,0 +1,18 @@
from building import *
group = []
if not GetDepend(['RT_USING_NVME']):
Return('group')
cwd = GetCurrentDir()
CPPPATH = [cwd + '/../include']
src = ['nvme.c']
if GetDepend(['RT_NVME_PCI']):
src += ['nvme-pci.c']
group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
Return('group')

169
components/drivers/nvme/nvme-pci.c Normal file
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@ -0,0 +1,169 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rtthread.h>
#include <rtdevice.h>
#define NVME_REG_BAR 0
struct pci_nvme_quirk
{
const struct rt_nvme_ops *ops;
};
struct pci_nvme_controller
{
struct rt_nvme_controller parent;
const struct pci_nvme_quirk *quirk;
rt_bool_t is_msi;
struct rt_pci_msix_entry msix_entries[RT_USING_NVME_QUEUE];
};
static const struct rt_nvme_ops pci_nvme_std_ops =
{
.name = "PCI",
};
static rt_err_t pci_nvme_probe(struct rt_pci_device *pdev)
{
rt_err_t err;
rt_ssize_t msi_nr;
struct rt_nvme_controller *nvme;
struct pci_nvme_controller *pci_nvme = rt_calloc(1, sizeof(*pci_nvme));
const struct pci_nvme_quirk *quirk = pdev->id->data;
if (!pci_nvme)
{
return -RT_ENOMEM;
}
pci_nvme->quirk = quirk;
nvme = &pci_nvme->parent;
nvme->dev = &pdev->parent;
nvme->regs = rt_pci_iomap(pdev, NVME_REG_BAR);
if (!nvme->regs)
{
err = -RT_EIO;
goto _fail;
}
nvme->ops = quirk && quirk->ops ? quirk->ops : &pci_nvme_std_ops;
if ((msi_nr = rt_pci_msix_vector_count(pdev)) <= 0)
{
msi_nr = rt_pci_msi_vector_count(pdev);
}
if (msi_nr > 0)
{
nvme->irqs_nr = RT_ARRAY_SIZE(pci_nvme->msix_entries);
nvme->irqs_nr = rt_min_t(rt_size_t, msi_nr, nvme->irqs_nr);
}
if (nvme->irqs_nr > 0)
{
rt_pci_msix_entry_index_linear(pci_nvme->msix_entries, nvme->irqs_nr);
if (rt_pci_msix_enable(pdev, pci_nvme->msix_entries, nvme->irqs_nr) > 0)
{
pci_nvme->is_msi = RT_TRUE;
for (int i = 0; i < nvme->irqs_nr; ++i)
{
nvme->irqs[i] = pci_nvme->msix_entries[i].irq;
}
}
}
if (!pci_nvme->is_msi)
{
nvme->irqs_nr = 1;
nvme->irqs[0] = pdev->irq;
rt_pci_irq_unmask(pdev);
}
rt_pci_set_master(pdev);
if ((err = rt_nvme_controller_register(nvme)))
{
goto _disable;
}
pdev->parent.user_data = pci_nvme;
return RT_EOK;
_disable:
if (pci_nvme->is_msi)
{
rt_pci_msix_disable(pdev);
}
else
{
rt_pci_irq_mask(pdev);
}
rt_pci_clear_master(pdev);
rt_iounmap(nvme->regs);
_fail:
rt_free(pci_nvme);
return err;
}
static rt_err_t pci_nvme_remove(struct rt_pci_device *pdev)
{
struct rt_nvme_controller *nvme;
struct pci_nvme_controller *pci_nvme = pdev->parent.user_data;
nvme = &pci_nvme->parent;
rt_nvme_controller_unregister(nvme);
if (pci_nvme->is_msi)
{
rt_pci_msix_disable(pdev);
}
else
{
rt_pci_irq_mask(pdev);
}
rt_pci_clear_master(pdev);
rt_iounmap(nvme->regs);
rt_free(pci_nvme);
return RT_EOK;
}
static rt_err_t pci_nvme_shutdown(struct rt_pci_device *pdev)
{
return pci_nvme_remove(pdev);
}
static const struct rt_pci_device_id pci_nvme_ids[] =
{
{ RT_PCI_DEVICE_ID(PCI_VENDOR_ID_REDHAT, 0x0010) },
{ RT_PCI_DEVICE_CLASS(PCIS_STORAGE_EXPRESS, ~0) },
{ /* sentinel */ }
};
static struct rt_pci_driver pci_nvme_driver =
{
.name = "nvme-pci",
.ids = pci_nvme_ids,
.probe = pci_nvme_probe,
.remove = pci_nvme_remove,
.shutdown = pci_nvme_shutdown,
};
RT_PCI_DRIVER_EXPORT(pci_nvme_driver);

1302
components/drivers/nvme/nvme.c Normal file
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