drivers/net/sfc/sfc_switch.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright(c) 2019-2021 Xilinx, Inc.
   4  * Copyright(c) 2019 Solarflare Communications Inc.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #ifndef _SFC_SWITCH_H
  11 #define _SFC_SWITCH_H
  12
  13 #include <stdint.h>
  14
  15 #include "efx.h"
  16
  17 #include "sfc.h"
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 /** Options for MAE switch port type */
  24 enum sfc_mae_switch_port_type {
  25         /**
  26          * The switch port is operated by a self-sufficient RTE ethdev
  27          * and thus refers to its underlying PCIe function
  28          */
  29         SFC_MAE_SWITCH_PORT_INDEPENDENT = 0,
  30         /**
  31          * The switch port is operated by a representor RTE ethdev
  32          * and thus refers to the represented PCIe function
  33          */
  34         SFC_MAE_SWITCH_PORT_REPRESENTOR,
  35 };
  36
  37 struct sfc_mae_switch_port_repr_data {
  38         efx_pcie_interface_t                    intf;
  39         uint16_t                                pf;
  40         uint16_t                                vf;
  41 };
  42
  43 union sfc_mae_switch_port_data {
  44         struct sfc_mae_switch_port_repr_data    repr;
  45 };
  46
  47 struct sfc_mae_switch_port_request {
  48         enum sfc_mae_switch_port_type           type;
  49         const efx_mport_sel_t                   *entity_mportp;
  50         const efx_mport_sel_t                   *ethdev_mportp;
  51         uint16_t                                ethdev_port_id;
  52         union sfc_mae_switch_port_data          port_data;
  53 };
  54
  55 typedef void (sfc_mae_switch_port_iterator_cb)(
  56                 enum sfc_mae_switch_port_type type,
  57                 const efx_mport_sel_t *ethdev_mportp,
  58                 uint16_t ethdev_port_id,
  59                 const efx_mport_sel_t *entity_mportp,
  60                 uint16_t switch_port_id,
  61                 union sfc_mae_switch_port_data *port_datap,
  62                 void *user_datap);
  63
  64 int sfc_mae_switch_ports_iterate(uint16_t switch_domain_id,
  65                                  sfc_mae_switch_port_iterator_cb *cb,
  66                                  void *data);
  67
  68 int sfc_mae_assign_switch_domain(struct sfc_adapter *sa,
  69                                  uint16_t *switch_domain_id);
  70
  71 int sfc_mae_switch_domain_controllers(uint16_t switch_domain_id,
  72                                       const efx_pcie_interface_t **controllers,
  73                                       size_t *nb_controllers);
  74
  75 int sfc_mae_switch_domain_map_controllers(uint16_t switch_domain_id,
  76                                           efx_pcie_interface_t *controllers,
  77                                           size_t nb_controllers);
  78
  79 int sfc_mae_switch_controller_from_mapping(
  80                 const efx_pcie_interface_t *controllers,
  81                 size_t nb_controllers,
  82                 efx_pcie_interface_t intf,
  83                 int *controller);
  84
  85 int sfc_mae_switch_domain_get_controller(uint16_t switch_domain_id,
  86                                    efx_pcie_interface_t intf,
  87                                    int *controller);
  88
  89 int sfc_mae_switch_domain_get_intf(uint16_t switch_domain_id,
  90                                    int controller,
  91                                    efx_pcie_interface_t *intf);
  92
  93 int sfc_mae_assign_switch_port(uint16_t switch_domain_id,
  94                                const struct sfc_mae_switch_port_request *req,
  95                                uint16_t *switch_port_id);
  96
  97 int sfc_mae_switch_port_by_ethdev(uint16_t switch_domain_id,
  98                                   uint16_t ethdev_port_id,
  99                                   efx_mport_sel_t *mport_sel);
 100
 101 int sfc_mae_switch_port_id_by_entity(uint16_t switch_domain_id,
 102                                      const efx_mport_sel_t *entity_mportp,
 103                                      enum sfc_mae_switch_port_type type,
 104                                      uint16_t *switch_port_id);
 105
 106 #ifdef __cplusplus
 107 }
 108 #endif
 109 #endif /* _SFC_SWITCH_H */