drivers/staging/octeon/octeon-ethernet.h

   1 /*
   2  * This file is based on code from OCTEON SDK by Cavium Networks.
   3  *
   4  * Copyright (c) 2003-2010 Cavium Networks
   5  *
   6  * This file is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License, Version 2, as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 /*
  12  * External interface for the Cavium Octeon ethernet driver.
  13  */
  14 #ifndef OCTEON_ETHERNET_H
  15 #define OCTEON_ETHERNET_H
  16
  17 #include <linux/of.h>
  18
  19 #include <asm/octeon/cvmx-helper-board.h>
  20
  21 /**
  22  * This is the definition of the Ethernet driver's private
  23  * driver state stored in netdev_priv(dev).
  24  */
  25 struct octeon_ethernet {
  26         /* PKO hardware output port */
  27         int port;
  28         /* PKO hardware queue for the port */
  29         int queue;
  30         /* Hardware fetch and add to count outstanding tx buffers */
  31         int fau;
  32         /* My netdev. */
  33         struct net_device *netdev;
  34         /*
  35          * Type of port. This is one of the enums in
  36          * cvmx_helper_interface_mode_t
  37          */
  38         int imode;
  39         /* List of outstanding tx buffers per queue */
  40         struct sk_buff_head tx_free_list[16];
  41         /* Device statistics */
  42         struct net_device_stats stats;
  43         unsigned int last_speed;
  44         unsigned int last_link;
  45         /* Last negotiated link state */
  46         u64 link_info;
  47         /* Called periodically to check link status */
  48         void (*poll)(struct net_device *dev);
  49         struct delayed_work     port_periodic_work;
  50         struct device_node      *of_node;
  51 };
  52
  53 int cvm_oct_free_work(void *work_queue_entry);
  54
  55 int cvm_oct_rgmii_open(struct net_device *dev);
  56
  57 int cvm_oct_sgmii_init(struct net_device *dev);
  58 int cvm_oct_sgmii_open(struct net_device *dev);
  59
  60 int cvm_oct_spi_init(struct net_device *dev);
  61 void cvm_oct_spi_uninit(struct net_device *dev);
  62
  63 int cvm_oct_common_init(struct net_device *dev);
  64 void cvm_oct_common_uninit(struct net_device *dev);
  65 void cvm_oct_adjust_link(struct net_device *dev);
  66 int cvm_oct_common_stop(struct net_device *dev);
  67 int cvm_oct_common_open(struct net_device *dev,
  68                         void (*link_poll)(struct net_device *));
  69 void cvm_oct_note_carrier(struct octeon_ethernet *priv,
  70                           cvmx_helper_link_info_t li);
  71 void cvm_oct_link_poll(struct net_device *dev);
  72
  73 extern int always_use_pow;
  74 extern int pow_send_group;
  75 extern int pow_receive_group;
  76 extern char pow_send_list[];
  77 extern struct net_device *cvm_oct_device[];
  78 extern atomic_t cvm_oct_poll_queue_stopping;
  79 extern u64 cvm_oct_tx_poll_interval;
  80
  81 extern int rx_napi_weight;
  82
  83 #endif