src/vnet/dev/pci.h

   1 /* SPDX-License-Identifier: Apache-2.0
   2  * Copyright (c) 2023 Cisco Systems, Inc.
   3  */
   4
   5 #ifndef _VNET_DEV_PCI_H_
   6 #define _VNET_DEV_PCI_H_
   7
   8 #include <vppinfra/clib.h>
   9 #include <vlib/pci/pci.h>
  10 #include <vnet/dev/dev.h>
  11
  12 typedef void (vnet_dev_pci_intx_handler_fn_t) (vlib_main_t *vm,
  13                                                vnet_dev_t *dev);
  14 typedef void (vnet_dev_pci_msix_handler_fn_t) (vlib_main_t *vm,
  15                                                vnet_dev_t *dev, u16 line);
  16
  17 typedef struct
  18 {
  19   vlib_pci_addr_t addr;
  20   u16 vendor_id;
  21   u16 device_id;
  22   u8 revision;
  23 } vnet_dev_bus_pci_device_info_t;
  24
  25 typedef struct
  26 {
  27   u8 pci_handle_valid : 1;
  28   u16 n_msix_int;
  29   vlib_pci_addr_t addr;
  30   vlib_pci_dev_handle_t handle;
  31   vnet_dev_pci_intx_handler_fn_t *intx_handler;
  32   vnet_dev_pci_msix_handler_fn_t **msix_handlers;
  33 } vnet_dev_bus_pci_device_data_t;
  34
  35 static_always_inline vnet_dev_bus_pci_device_data_t *
  36 vnet_dev_get_bus_pci_device_data (vnet_dev_t *dev)
  37 {
  38   return (void *) dev->bus_data;
  39 }
  40 static_always_inline vlib_pci_dev_handle_t
  41 vnet_dev_get_pci_handle (vnet_dev_t *dev)
  42 {
  43   return ((vnet_dev_bus_pci_device_data_t *) (dev->bus_data))->handle;
  44 }
  45
  46 static_always_inline vlib_pci_addr_t
  47 vnet_dev_get_pci_addr (vnet_dev_t *dev)
  48 {
  49   return ((vnet_dev_bus_pci_device_data_t *) (dev->bus_data))->addr;
  50 }
  51
  52 static_always_inline vlib_pci_dev_handle_t
  53 vnet_dev_get_pci_n_msix_interrupts (vnet_dev_t *dev)
  54 {
  55   return vnet_dev_get_bus_pci_device_data (dev)->n_msix_int;
  56 }
  57
  58 vnet_dev_rv_t vnet_dev_pci_read_config_header (vlib_main_t *, vnet_dev_t *,
  59                                                vlib_pci_config_hdr_t *);
  60
  61 vnet_dev_rv_t vnet_dev_pci_map_region (vlib_main_t *, vnet_dev_t *, u8,
  62                                        void **);
  63 vnet_dev_rv_t vnet_dev_pci_function_level_reset (vlib_main_t *, vnet_dev_t *);
  64 vnet_dev_rv_t vnet_dev_pci_bus_master_enable (vlib_main_t *, vnet_dev_t *);
  65 vnet_dev_rv_t vnet_dev_pci_bus_master_disable (vlib_main_t *, vnet_dev_t *);
  66 vnet_dev_rv_t vnet_dev_pci_intx_add_handler (vlib_main_t *, vnet_dev_t *,
  67                                              vnet_dev_pci_intx_handler_fn_t *);
  68 vnet_dev_rv_t vnet_dev_pci_intx_remove_handler (vlib_main_t *, vnet_dev_t *);
  69 vnet_dev_rv_t vnet_dev_pci_msix_add_handler (vlib_main_t *, vnet_dev_t *,
  70                                              vnet_dev_pci_msix_handler_fn_t *,
  71                                              u16, u16);
  72 vnet_dev_rv_t vnet_dev_pci_msix_remove_handler (vlib_main_t *, vnet_dev_t *,
  73                                                 u16, u16);
  74 vnet_dev_rv_t vnet_dev_pci_msix_enable (vlib_main_t *, vnet_dev_t *, u16, u16);
  75 vnet_dev_rv_t vnet_dev_pci_msix_disable (vlib_main_t *, vnet_dev_t *, u16,
  76                                          u16);
  77
  78 #endif /* _VNET_DEV_PCI_H_ */