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 int sfc_mae_assign_switch_domain(struct sfc_adapter *sa,
  56                                  uint16_t *switch_domain_id);
  57
  58 int sfc_mae_switch_domain_controllers(uint16_t switch_domain_id,
  59                                       const efx_pcie_interface_t **controllers,
  60                                       size_t *nb_controllers);
  61
  62 int sfc_mae_switch_domain_map_controllers(uint16_t switch_domain_id,
  63                                           efx_pcie_interface_t *controllers,
  64                                           size_t nb_controllers);
  65
  66 int sfc_mae_switch_domain_get_controller(uint16_t switch_domain_id,
  67                                    efx_pcie_interface_t intf,
  68                                    int *controller);
  69
  70 int sfc_mae_switch_domain_get_intf(uint16_t switch_domain_id,
  71                                    int controller,
  72                                    efx_pcie_interface_t *intf);
  73
  74 int sfc_mae_assign_switch_port(uint16_t switch_domain_id,
  75                                const struct sfc_mae_switch_port_request *req,
  76                                uint16_t *switch_port_id);
  77
  78 int sfc_mae_switch_port_by_ethdev(uint16_t switch_domain_id,
  79                                   uint16_t ethdev_port_id,
  80                                   efx_mport_sel_t *mport_sel);
  81
  82 #ifdef __cplusplus
  83 }
  84 #endif
  85 #endif /* _SFC_SWITCH_H */