drivers/net/ethernet/rocker/rocker.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * drivers/net/ethernet/rocker/rocker.h - Rocker switch device driver
   4  * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
   5  * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
   6  */
   7
   8 #ifndef _ROCKER_H
   9 #define _ROCKER_H
  10
  11 #include <linux/kernel.h>
  12 #include <linux/types.h>
  13 #include <linux/netdevice.h>
  14 #include <linux/notifier.h>
  15 #include <net/neighbour.h>
  16 #include <net/switchdev.h>
  17
  18 #include "rocker_hw.h"
  19
  20 struct rocker_desc_info {
  21         char *data; /* mapped */
  22         size_t data_size;
  23         size_t tlv_size;
  24         struct rocker_desc *desc;
  25         dma_addr_t mapaddr;
  26 };
  27
  28 struct rocker_dma_ring_info {
  29         size_t size;
  30         u32 head;
  31         u32 tail;
  32         struct rocker_desc *desc; /* mapped */
  33         dma_addr_t mapaddr;
  34         struct rocker_desc_info *desc_info;
  35         unsigned int type;
  36 };
  37
  38 struct rocker;
  39
  40 struct rocker_port {
  41         struct net_device *dev;
  42         struct rocker *rocker;
  43         void *wpriv;
  44         unsigned int port_number;
  45         u32 pport;
  46         struct napi_struct napi_tx;
  47         struct napi_struct napi_rx;
  48         struct rocker_dma_ring_info tx_ring;
  49         struct rocker_dma_ring_info rx_ring;
  50 };
  51
  52 struct rocker_port *rocker_port_dev_lower_find(struct net_device *dev,
  53                                                struct rocker *rocker);
  54
  55 struct rocker_world_ops;
  56
  57 struct rocker {
  58         struct pci_dev *pdev;
  59         u8 __iomem *hw_addr;
  60         struct msix_entry *msix_entries;
  61         unsigned int port_count;
  62         struct rocker_port **ports;
  63         struct {
  64                 u64 id;
  65         } hw;
  66         spinlock_t cmd_ring_lock;               /* for cmd ring accesses */
  67         struct rocker_dma_ring_info cmd_ring;
  68         struct rocker_dma_ring_info event_ring;
  69         struct notifier_block fib_nb;
  70         struct rocker_world_ops *wops;
  71         struct workqueue_struct *rocker_owq;
  72         void *wpriv;
  73 };
  74
  75 typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
  76                                     struct rocker_desc_info *desc_info,
  77                                     void *priv);
  78
  79 typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
  80                                     const struct rocker_desc_info *desc_info,
  81                                     void *priv);
  82
  83 int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait,
  84                     rocker_cmd_prep_cb_t prepare, void *prepare_priv,
  85                     rocker_cmd_proc_cb_t process, void *process_priv);
  86
  87 int rocker_port_set_learning(struct rocker_port *rocker_port,
  88                              bool learning);
  89
  90 struct rocker_world_ops {
  91         const char *kind;
  92         size_t priv_size;
  93         size_t port_priv_size;
  94         u8 mode;
  95         int (*init)(struct rocker *rocker);
  96         void (*fini)(struct rocker *rocker);
  97         int (*port_pre_init)(struct rocker_port *rocker_port);
  98         int (*port_init)(struct rocker_port *rocker_port);
  99         void (*port_fini)(struct rocker_port *rocker_port);
 100         void (*port_post_fini)(struct rocker_port *rocker_port);
 101         int (*port_open)(struct rocker_port *rocker_port);
 102         void (*port_stop)(struct rocker_port *rocker_port);
 103         int (*port_attr_stp_state_set)(struct rocker_port *rocker_port,
 104                                        u8 state);
 105         int (*port_attr_bridge_flags_set)(struct rocker_port *rocker_port,
 106                                           unsigned long brport_flags,
 107                                           struct switchdev_trans *trans);
 108         int (*port_attr_bridge_flags_support_get)(const struct rocker_port *
 109                                                   rocker_port,
 110                                                   unsigned long *
 111                                                   p_brport_flags);
 112         int (*port_attr_bridge_ageing_time_set)(struct rocker_port *rocker_port,
 113                                                 u32 ageing_time,
 114                                                 struct switchdev_trans *trans);
 115         int (*port_obj_vlan_add)(struct rocker_port *rocker_port,
 116                                  const struct switchdev_obj_port_vlan *vlan);
 117         int (*port_obj_vlan_del)(struct rocker_port *rocker_port,
 118                                  const struct switchdev_obj_port_vlan *vlan);
 119         int (*port_obj_fdb_add)(struct rocker_port *rocker_port,
 120                                 u16 vid, const unsigned char *addr);
 121         int (*port_obj_fdb_del)(struct rocker_port *rocker_port,
 122                                 u16 vid, const unsigned char *addr);
 123         int (*port_master_linked)(struct rocker_port *rocker_port,
 124                                   struct net_device *master);
 125         int (*port_master_unlinked)(struct rocker_port *rocker_port,
 126                                     struct net_device *master);
 127         int (*port_neigh_update)(struct rocker_port *rocker_port,
 128                                  struct neighbour *n);
 129         int (*port_neigh_destroy)(struct rocker_port *rocker_port,
 130                                   struct neighbour *n);
 131         int (*port_ev_mac_vlan_seen)(struct rocker_port *rocker_port,
 132                                      const unsigned char *addr,
 133                                      __be16 vlan_id);
 134         int (*fib4_add)(struct rocker *rocker,
 135                         const struct fib_entry_notifier_info *fen_info);
 136         int (*fib4_del)(struct rocker *rocker,
 137                         const struct fib_entry_notifier_info *fen_info);
 138         void (*fib4_abort)(struct rocker *rocker);
 139 };
 140
 141 extern struct rocker_world_ops rocker_ofdpa_ops;
 142
 143 #endif