hw/block/nvme.h

   1 #ifndef HW_NVME_H
   2 #define HW_NVME_H
   3
   4 #include "block/nvme.h"
   5
   6 typedef struct NvmeParams {
   7     char     *serial;
   8     uint32_t num_queues; /* deprecated since 5.1 */
   9     uint32_t max_ioqpairs;
  10     uint32_t cmb_size_mb;
  11 } NvmeParams;
  12
  13 typedef struct NvmeAsyncEvent {
  14     QSIMPLEQ_ENTRY(NvmeAsyncEvent) entry;
  15     NvmeAerResult result;
  16 } NvmeAsyncEvent;
  17
  18 typedef struct NvmeRequest {
  19     struct NvmeSQueue       *sq;
  20     BlockAIOCB              *aiocb;
  21     uint16_t                status;
  22     bool                    has_sg;
  23     NvmeCqe                 cqe;
  24     BlockAcctCookie         acct;
  25     QEMUSGList              qsg;
  26     QEMUIOVector            iov;
  27     QTAILQ_ENTRY(NvmeRequest)entry;
  28 } NvmeRequest;
  29
  30 typedef struct NvmeSQueue {
  31     struct NvmeCtrl *ctrl;
  32     uint16_t    sqid;
  33     uint16_t    cqid;
  34     uint32_t    head;
  35     uint32_t    tail;
  36     uint32_t    size;
  37     uint64_t    dma_addr;
  38     QEMUTimer   *timer;
  39     NvmeRequest *io_req;
  40     QTAILQ_HEAD(, NvmeRequest) req_list;
  41     QTAILQ_HEAD(, NvmeRequest) out_req_list;
  42     QTAILQ_ENTRY(NvmeSQueue) entry;
  43 } NvmeSQueue;
  44
  45 typedef struct NvmeCQueue {
  46     struct NvmeCtrl *ctrl;
  47     uint8_t     phase;
  48     uint16_t    cqid;
  49     uint16_t    irq_enabled;
  50     uint32_t    head;
  51     uint32_t    tail;
  52     uint32_t    vector;
  53     uint32_t    size;
  54     uint64_t    dma_addr;
  55     QEMUTimer   *timer;
  56     QTAILQ_HEAD(, NvmeSQueue) sq_list;
  57     QTAILQ_HEAD(, NvmeRequest) req_list;
  58 } NvmeCQueue;
  59
  60 typedef struct NvmeNamespace {
  61     NvmeIdNs        id_ns;
  62 } NvmeNamespace;
  63
  64 #define TYPE_NVME "nvme"
  65 #define NVME(obj) \
  66         OBJECT_CHECK(NvmeCtrl, (obj), TYPE_NVME)
  67
  68 typedef struct NvmeCtrl {
  69     PCIDevice    parent_obj;
  70     MemoryRegion iomem;
  71     MemoryRegion ctrl_mem;
  72     NvmeBar      bar;
  73     BlockConf    conf;
  74     NvmeParams   params;
  75
  76     uint32_t    page_size;
  77     uint16_t    page_bits;
  78     uint16_t    max_prp_ents;
  79     uint16_t    cqe_size;
  80     uint16_t    sqe_size;
  81     uint32_t    reg_size;
  82     uint32_t    num_namespaces;
  83     uint32_t    max_q_ents;
  84     uint64_t    ns_size;
  85     uint32_t    cmbsz;
  86     uint32_t    cmbloc;
  87     uint8_t     *cmbuf;
  88     uint32_t    irq_status;
  89     uint64_t    host_timestamp;                 /* Timestamp sent by the host */
  90     uint64_t    timestamp_set_qemu_clock_ms;    /* QEMU clock time */
  91
  92     HostMemoryBackend *pmrdev;
  93
  94     NvmeNamespace   *namespaces;
  95     NvmeSQueue      **sq;
  96     NvmeCQueue      **cq;
  97     NvmeSQueue      admin_sq;
  98     NvmeCQueue      admin_cq;
  99     NvmeIdCtrl      id_ctrl;
 100 } NvmeCtrl;
 101
 102 #endif /* HW_NVME_H */