drivers/vdpa/sfc/sfc_vdpa.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020-2021 Xilinx, Inc.
   3  */
   4
   5 #ifndef _SFC_VDPA_H
   6 #define _SFC_VDPA_H
   7
   8 #include <stdint.h>
   9 #include <sys/queue.h>
  10
  11 #include <rte_bus_pci.h>
  12
  13 #include "sfc_efx.h"
  14 #include "sfc_efx_mcdi.h"
  15 #include "sfc_vdpa_debug.h"
  16 #include "sfc_vdpa_log.h"
  17 #include "sfc_vdpa_ops.h"
  18
  19 #define SFC_VDPA_DEFAULT_MCDI_IOVA              0x200000000000
  20
  21 /* Adapter private data */
  22 struct sfc_vdpa_adapter {
  23         TAILQ_ENTRY(sfc_vdpa_adapter)   next;
  24         /*
  25          * PMD setup and configuration is not thread safe. Since it is not
  26          * performance sensitive, it is better to guarantee thread-safety
  27          * and add device level lock. vDPA control operations which
  28          * change its state should acquire the lock.
  29          */
  30         rte_spinlock_t                  lock;
  31         struct rte_pci_device           *pdev;
  32
  33         efx_family_t                    family;
  34         efx_nic_t                       *nic;
  35         rte_spinlock_t                  nic_lock;
  36
  37         efsys_bar_t                     mem_bar;
  38
  39         struct sfc_efx_mcdi             mcdi;
  40         size_t                          mcdi_buff_size;
  41
  42         uint32_t                        max_queue_count;
  43
  44         char                            log_prefix[SFC_VDPA_LOG_PREFIX_MAX];
  45         uint32_t                        logtype_main;
  46
  47         int                             vfio_group_fd;
  48         int                             vfio_dev_fd;
  49         int                             vfio_container_fd;
  50         int                             iommu_group_num;
  51         struct sfc_vdpa_ops_data        *ops_data;
  52 };
  53
  54 uint32_t
  55 sfc_vdpa_register_logtype(const struct rte_pci_addr *pci_addr,
  56                           const char *lt_prefix_str,
  57                           uint32_t ll_default);
  58
  59 struct sfc_vdpa_adapter *
  60 sfc_vdpa_get_adapter_by_dev(struct rte_pci_device *pdev);
  61
  62 int
  63 sfc_vdpa_hw_init(struct sfc_vdpa_adapter *sva);
  64 void
  65 sfc_vdpa_hw_fini(struct sfc_vdpa_adapter *sva);
  66
  67 int
  68 sfc_vdpa_mcdi_init(struct sfc_vdpa_adapter *sva);
  69 void
  70 sfc_vdpa_mcdi_fini(struct sfc_vdpa_adapter *sva);
  71
  72 int
  73 sfc_vdpa_dma_alloc(struct sfc_vdpa_adapter *sva, const char *name,
  74                    size_t len, efsys_mem_t *esmp);
  75
  76 void
  77 sfc_vdpa_dma_free(struct sfc_vdpa_adapter *sva, efsys_mem_t *esmp);
  78
  79 static inline struct sfc_vdpa_adapter *
  80 sfc_vdpa_adapter_by_dev_handle(void *dev_handle)
  81 {
  82         return (struct sfc_vdpa_adapter *)dev_handle;
  83 }
  84
  85 #endif  /* _SFC_VDPA_H */