drivers/net/ethernet/adi/bfin_mac.h

   1 /*
   2  * Blackfin On-Chip MAC Driver
   3  *
   4  * Copyright 2004-2007 Analog Devices Inc.
   5  *
   6  * Enter bugs at http://blackfin.uclinux.org/
   7  *
   8  * Licensed under the GPL-2 or later.
   9  */
  10 #ifndef _BFIN_MAC_H_
  11 #define _BFIN_MAC_H_
  12
  13 #include <linux/net_tstamp.h>
  14 #include <linux/ptp_clock_kernel.h>
  15 #include <linux/timer.h>
  16 #include <linux/etherdevice.h>
  17 #include <linux/bfin_mac.h>
  18
  19 /*
  20  * Disable hardware checksum for bug #5600 if writeback cache is
  21  * enabled. Otherwize, corrupted RX packet will be sent up stack
  22  * without error mark.
  23  */
  24 #ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
  25 #define BFIN_MAC_CSUM_OFFLOAD
  26 #endif
  27
  28 #define TX_RECLAIM_JIFFIES (HZ / 5)
  29
  30 struct dma_descriptor {
  31         struct dma_descriptor *next_dma_desc;
  32         unsigned long start_addr;
  33         unsigned short config;
  34         unsigned short x_count;
  35 };
  36
  37 struct status_area_rx {
  38 #if defined(BFIN_MAC_CSUM_OFFLOAD)
  39         unsigned short ip_hdr_csum;     /* ip header checksum */
  40         /* ip payload(udp or tcp or others) checksum */
  41         unsigned short ip_payload_csum;
  42 #endif
  43         unsigned long status_word;      /* the frame status word */
  44 };
  45
  46 struct status_area_tx {
  47         unsigned long status_word;      /* the frame status word */
  48 };
  49
  50 /* use two descriptors for a packet */
  51 struct net_dma_desc_rx {
  52         struct net_dma_desc_rx *next;
  53         struct sk_buff *skb;
  54         struct dma_descriptor desc_a;
  55         struct dma_descriptor desc_b;
  56         struct status_area_rx status;
  57 };
  58
  59 /* use two descriptors for a packet */
  60 struct net_dma_desc_tx {
  61         struct net_dma_desc_tx *next;
  62         struct sk_buff *skb;
  63         struct dma_descriptor desc_a;
  64         struct dma_descriptor desc_b;
  65         unsigned char packet[1560];
  66         struct status_area_tx status;
  67 };
  68
  69 struct bfin_mac_local {
  70         /*
  71          * these are things that the kernel wants me to keep, so users
  72          * can find out semi-useless statistics of how well the card is
  73          * performing
  74          */
  75         struct net_device_stats stats;
  76
  77         spinlock_t lock;
  78
  79         int wol;                /* Wake On Lan */
  80         int irq_wake_requested;
  81         struct timer_list tx_reclaim_timer;
  82         struct net_device *ndev;
  83
  84         /* Data for EMAC_VLAN1 regs */
  85         u16 vlan1_mask, vlan2_mask;
  86
  87         /* MII and PHY stuffs */
  88         int old_link;          /* used by bf537_adjust_link */
  89         int old_speed;
  90         int old_duplex;
  91
  92         struct phy_device *phydev;
  93         struct mii_bus *mii_bus;
  94
  95 #if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
  96         u32 addend;
  97         unsigned int shift;
  98         s32 max_ppb;
  99         struct hwtstamp_config stamp_cfg;
 100         struct ptp_clock_info caps;
 101         struct ptp_clock *clock;
 102         int phc_index;
 103         spinlock_t phc_lock; /* protects time lo/hi registers */
 104 #endif
 105 };
 106
 107 int bfin_get_ether_addr(char *addr);
 108
 109 #endif