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 <net/neighbour.h>
  19 #include <net/switchdev.h>
  20
  21 #include "rocker_hw.h"
  22
  23 struct rocker_desc_info {
  24         char *data; /* mapped */
  25         size_t data_size;
  26         size_t tlv_size;
  27         struct rocker_desc *desc;
  28         dma_addr_t mapaddr;
  29 };
  30
  31 struct rocker_dma_ring_info {
  32         size_t size;
  33         u32 head;
  34         u32 tail;
  35         struct rocker_desc *desc; /* mapped */
  36         dma_addr_t mapaddr;
  37         struct rocker_desc_info *desc_info;
  38         unsigned int type;
  39 };
  40
  41 struct rocker;
  42
  43 struct rocker_port {
  44         struct net_device *dev;
  45         struct rocker *rocker;
  46         void *wpriv;
  47         unsigned int port_number;
  48         u32 pport;
  49         struct napi_struct napi_tx;
  50         struct napi_struct napi_rx;
  51         struct rocker_dma_ring_info tx_ring;
  52         struct rocker_dma_ring_info rx_ring;
  53 };
  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 rocker_world_ops *wops;
  70         void *wpriv;
  71 };
  72
  73 typedef int (*rocker_cmd_prep_cb_t)(const struct rocker_port *rocker_port,
  74                                     struct rocker_desc_info *desc_info,
  75                                     void *priv);
  76
  77 typedef int (*rocker_cmd_proc_cb_t)(const struct rocker_port *rocker_port,
  78                                     const struct rocker_desc_info *desc_info,
  79                                     void *priv);
  80
  81 int rocker_cmd_exec(struct rocker_port *rocker_port, bool nowait,
  82                     rocker_cmd_prep_cb_t prepare, void *prepare_priv,
  83                     rocker_cmd_proc_cb_t process, void *process_priv);
  84
  85 int rocker_port_set_learning(struct rocker_port *rocker_port,
  86                              bool learning);
  87
  88 struct rocker_world_ops {
  89         const char *kind;
  90         size_t priv_size;
  91         size_t port_priv_size;
  92         u8 mode;
  93         int (*init)(struct rocker *rocker);
  94         void (*fini)(struct rocker *rocker);
  95         int (*port_pre_init)(struct rocker_port *rocker_port);
  96         int (*port_init)(struct rocker_port *rocker_port);
  97         void (*port_fini)(struct rocker_port *rocker_port);
  98         void (*port_post_fini)(struct rocker_port *rocker_port);
  99         int (*port_open)(struct rocker_port *rocker_port);
 100         void (*port_stop)(struct rocker_port *rocker_port);
 101         int (*port_attr_stp_state_set)(struct rocker_port *rocker_port,
 102                                        u8 state,
 103                                        struct switchdev_trans *trans);
 104         int (*port_attr_bridge_flags_set)(struct rocker_port *rocker_port,
 105                                           unsigned long brport_flags,
 106                                           struct switchdev_trans *trans);
 107         int (*port_attr_bridge_flags_get)(const struct rocker_port *rocker_port,
 108                                           unsigned long *p_brport_flags);
 109         int (*port_attr_bridge_ageing_time_set)(struct rocker_port *rocker_port,
 110                                                 u32 ageing_time,
 111                                                 struct switchdev_trans *trans);
 112         int (*port_obj_vlan_add)(struct rocker_port *rocker_port,
 113                                  const struct switchdev_obj_port_vlan *vlan,
 114                                  struct switchdev_trans *trans);
 115         int (*port_obj_vlan_del)(struct rocker_port *rocker_port,
 116                                  const struct switchdev_obj_port_vlan *vlan);
 117         int (*port_obj_vlan_dump)(const struct rocker_port *rocker_port,
 118                                   struct switchdev_obj_port_vlan *vlan,
 119                                   switchdev_obj_dump_cb_t *cb);
 120         int (*port_obj_fib4_add)(struct rocker_port *rocker_port,
 121                                  const struct switchdev_obj_ipv4_fib *fib4,
 122                                  struct switchdev_trans *trans);
 123         int (*port_obj_fib4_del)(struct rocker_port *rocker_port,
 124                                  const struct switchdev_obj_ipv4_fib *fib4);
 125         int (*port_obj_fdb_add)(struct rocker_port *rocker_port,
 126                                 const struct switchdev_obj_port_fdb *fdb,
 127                                 struct switchdev_trans *trans);
 128         int (*port_obj_fdb_del)(struct rocker_port *rocker_port,
 129                                 const struct switchdev_obj_port_fdb *fdb);
 130         int (*port_obj_fdb_dump)(const struct rocker_port *rocker_port,
 131                                  struct switchdev_obj_port_fdb *fdb,
 132                                  switchdev_obj_dump_cb_t *cb);
 133         int (*port_master_linked)(struct rocker_port *rocker_port,
 134                                   struct net_device *master);
 135         int (*port_master_unlinked)(struct rocker_port *rocker_port,
 136                                     struct net_device *master);
 137         int (*port_neigh_update)(struct rocker_port *rocker_port,
 138                                  struct neighbour *n);
 139         int (*port_neigh_destroy)(struct rocker_port *rocker_port,
 140                                   struct neighbour *n);
 141         int (*port_ev_mac_vlan_seen)(struct rocker_port *rocker_port,
 142                                      const unsigned char *addr,
 143                                      __be16 vlan_id);
 144 };
 145
 146 extern struct rocker_world_ops rocker_ofdpa_ops;
 147
 148 #endif