hw/block/nvme.h

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