drivers/net/ethernet/rocker/rocker.h

   1 /*
   2  * drivers/net/ethernet/rocker/rocker.h - Rocker switch device driver
   3  * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
   4  * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #ifndef _ROCKER_H
  13 #define _ROCKER_H
  14
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/netdevice.h>
  18 #include <linux/notifier.h>
  19 #include <net/neighbour.h>
  20 #include <net/switchdev.h>
  21
  22 #include "rocker_hw.h"
  23
  24 struct rocker_desc_info {
  25         char *data; /* mapped */
  26         size_t data_size;
  27         size_t tlv_size;
  28         struct rocker_desc *desc;
  29         dma_addr_t mapaddr;
  30 };
  31
  32 struct rocker_dma_ring_info {
  33         size_t size;
  34         u32 head;
  35         u32 tail;
  36         struct rocker_desc *desc; /* mapped */
  37         dma_addr_t mapaddr;
  38         struct rocker_desc_info *desc_info;
  39         unsigned int type;
  40 };
  41
  42 struct rocker;
  43
  44 struct rocker_port {
  45         struct net_device *dev;
  46         struct rocker *rocker;
  47         void *wpriv;
  48         unsigned int port_number;
  49         u32 pport;
  50         struct napi_struct napi_tx;
  51         struct napi_struct napi_rx;
  52         struct rocker_dma_ring_info tx_ring;
  53         struct rocker_dma_ring_info rx_ring;
  54 };
  55
  56 struct rocker_port *rocker_port_dev_lower_find(struct net_device *dev,
  57                                                struct rocker *rocker);
  58
  59 struct rocker_world_ops;
  60
  61 struct rocker {
  62         struct pci_dev *pdev;
  63         u8 __iomem *hw_addr;
  64         struct msix_entry *msix_entries;
  65         unsigned int port_count;
  66         struct rocker_port **ports;
  67         struct {
  68                 u64 id;
  69         } hw;
  70         spinlock_t cmd_ring_lock;               /* for cmd ring accesses */
  71         struct rocker_dma_ring_info cmd_ring;
  72         struct rocker_dma_ring_info event_ring;
  73         struct notifier_block fib_nb;
  74         struct rocker_world_ops *wops;
  75         struct workqueue_struct *rocker_owq;
  76         void *wpriv;
  77 };
  78
  79 typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
  80                                     struct rocker_desc_info *desc_info,
  81                                     void *priv);
  82
  83 typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
  84                                     const struct rocker_desc_info *desc_info,
  85                                     void *priv);
  86
  87 int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait,
  88                     rocker_cmd_prep_cb_t prepare, void *prepare_priv,
  89                     rocker_cmd_proc_cb_t process, void *process_priv);
  90
  91 int rocker_port_set_learning(struct rocker_port *rocker_port,
  92                              bool learning);
  93
  94 struct rocker_world_ops {
  95         const char *kind;
  96         size_t priv_size;
  97         size_t port_priv_size;
  98         u8 mode;
  99         int (*init)(struct rocker *rocker);
 100         void (*fini)(struct rocker *rocker);
 101         int (*port_pre_init)(struct rocker_port *rocker_port);
 102         int (*port_init)(struct rocker_port *rocker_port);
 103         void (*port_fini)(struct rocker_port *rocker_port);
 104         void (*port_post_fini)(struct rocker_port *rocker_port);
 105         int (*port_open)(struct rocker_port *rocker_port);
 106         void (*port_stop)(struct rocker_port *rocker_port);
 107         int (*port_attr_stp_state_set)(struct rocker_port *rocker_port,
 108                                        u8 state);
 109         int (*port_attr_bridge_flags_set)(struct rocker_port *rocker_port,
 110                                           unsigned long brport_flags,
 111                                           struct switchdev_trans *trans);
 112         int (*port_attr_bridge_flags_support_get)(const struct rocker_port *
 113                                                   rocker_port,
 114                                                   unsigned long *
 115                                                   p_brport_flags);
 116         int (*port_attr_bridge_ageing_time_set)(struct rocker_port *rocker_port,
 117                                                 u32 ageing_time,
 118                                                 struct switchdev_trans *trans);
 119         int (*port_obj_vlan_add)(struct rocker_port *rocker_port,
 120                                  const struct switchdev_obj_port_vlan *vlan);
 121         int (*port_obj_vlan_del)(struct rocker_port *rocker_port,
 122                                  const struct switchdev_obj_port_vlan *vlan);
 123         int (*port_obj_fdb_add)(struct rocker_port *rocker_port,
 124                                 u16 vid, const unsigned char *addr);
 125         int (*port_obj_fdb_del)(struct rocker_port *rocker_port,
 126                                 u16 vid, const unsigned char *addr);
 127         int (*port_master_linked)(struct rocker_port *rocker_port,
 128                                   struct net_device *master);
 129         int (*port_master_unlinked)(struct rocker_port *rocker_port,
 130                                     struct net_device *master);
 131         int (*port_neigh_update)(struct rocker_port *rocker_port,
 132                                  struct neighbour *n);
 133         int (*port_neigh_destroy)(struct rocker_port *rocker_port,
 134                                   struct neighbour *n);
 135         int (*port_ev_mac_vlan_seen)(struct rocker_port *rocker_port,
 136                                      const unsigned char *addr,
 137                                      __be16 vlan_id);
 138         int (*fib4_add)(struct rocker *rocker,
 139                         const struct fib_entry_notifier_info *fen_info);
 140         int (*fib4_del)(struct rocker *rocker,
 141                         const struct fib_entry_notifier_info *fen_info);
 142         void (*fib4_abort)(struct rocker *rocker);
 143 };
 144
 145 extern struct rocker_world_ops rocker_ofdpa_ops;
 146
 147 #endif