drivers/vdpa/sfc/sfc_vdpa_ops.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020-2021 Xilinx, Inc.
   3  */
   4
   5 #ifndef _SFC_VDPA_OPS_H
   6 #define _SFC_VDPA_OPS_H
   7
   8 #include <rte_vdpa.h>
   9
  10 #define SFC_VDPA_MAX_QUEUE_PAIRS                1
  11
  12 enum sfc_vdpa_context {
  13         SFC_VDPA_AS_VF
  14 };
  15
  16 enum sfc_vdpa_state {
  17         SFC_VDPA_STATE_UNINITIALIZED = 0,
  18         SFC_VDPA_STATE_INITIALIZED,
  19         SFC_VDPA_STATE_CONFIGURING,
  20         SFC_VDPA_STATE_CONFIGURED,
  21         SFC_VDPA_STATE_CLOSING,
  22         SFC_VDPA_STATE_CLOSED,
  23         SFC_VDPA_STATE_STARTING,
  24         SFC_VDPA_STATE_STARTED,
  25         SFC_VDPA_STATE_STOPPING,
  26 };
  27
  28 struct sfc_vdpa_vring_info {
  29         uint64_t        desc;
  30         uint64_t        avail;
  31         uint64_t        used;
  32         uint64_t        size;
  33         uint16_t        last_avail_idx;
  34         uint16_t        last_used_idx;
  35 };
  36
  37 typedef struct sfc_vdpa_vq_context_s {
  38         uint8_t                         enable;
  39         uint32_t                        pidx;
  40         uint32_t                        cidx;
  41         efx_virtio_vq_t                 *vq;
  42 } sfc_vdpa_vq_context_t;
  43
  44 struct sfc_vdpa_ops_data {
  45         void                            *dev_handle;
  46         int                             vid;
  47         struct rte_vdpa_device          *vdpa_dev;
  48         enum sfc_vdpa_context           vdpa_context;
  49         enum sfc_vdpa_state             state;
  50         pthread_t                       notify_tid;
  51         bool                            is_notify_thread_started;
  52
  53         uint64_t                        dev_features;
  54         uint64_t                        drv_features;
  55         uint64_t                        req_features;
  56
  57         uint16_t                        vq_count;
  58         struct sfc_vdpa_vq_context_s    vq_cxt[SFC_VDPA_MAX_QUEUE_PAIRS * 2];
  59 };
  60
  61 struct sfc_vdpa_ops_data *
  62 sfc_vdpa_device_init(void *adapter, enum sfc_vdpa_context context);
  63 void
  64 sfc_vdpa_device_fini(struct sfc_vdpa_ops_data *ops_data);
  65
  66 #endif /* _SFC_VDPA_OPS_H */