drivers/net/fs_enet/fs_enet.h

   1 #ifndef FS_ENET_H
   2 #define FS_ENET_H
   3
   4 #include <linux/mii.h>
   5 #include <linux/netdevice.h>
   6 #include <linux/types.h>
   7 #include <linux/list.h>
   8 #include <linux/phy.h>
   9 #include <linux/dma-mapping.h>
  10
  11 #include <linux/fs_enet_pd.h>
  12 #include <asm/fs_pd.h>
  13
  14 #ifdef CONFIG_CPM1
  15 #include <asm/commproc.h>
  16
  17 struct fec_info {
  18         fec_t __iomem *fecp;
  19         u32 mii_speed;
  20 };
  21 #endif
  22
  23 #ifdef CONFIG_CPM2
  24 #include <asm/cpm2.h>
  25 #endif
  26
  27 /* hw driver ops */
  28 struct fs_ops {
  29         int (*setup_data)(struct net_device *dev);
  30         int (*allocate_bd)(struct net_device *dev);
  31         void (*free_bd)(struct net_device *dev);
  32         void (*cleanup_data)(struct net_device *dev);
  33         void (*set_multicast_list)(struct net_device *dev);
  34         void (*adjust_link)(struct net_device *dev);
  35         void (*restart)(struct net_device *dev);
  36         void (*stop)(struct net_device *dev);
  37         void (*pre_request_irq)(struct net_device *dev, int irq);
  38         void (*post_free_irq)(struct net_device *dev, int irq);
  39         void (*napi_clear_rx_event)(struct net_device *dev);
  40         void (*napi_enable_rx)(struct net_device *dev);
  41         void (*napi_disable_rx)(struct net_device *dev);
  42         void (*rx_bd_done)(struct net_device *dev);
  43         void (*tx_kickstart)(struct net_device *dev);
  44         u32 (*get_int_events)(struct net_device *dev);
  45         void (*clear_int_events)(struct net_device *dev, u32 int_events);
  46         void (*ev_error)(struct net_device *dev, u32 int_events);
  47         int (*get_regs)(struct net_device *dev, void *p, int *sizep);
  48         int (*get_regs_len)(struct net_device *dev);
  49         void (*tx_restart)(struct net_device *dev);
  50 };
  51
  52 struct phy_info {
  53         unsigned int id;
  54         const char *name;
  55         void (*startup) (struct net_device * dev);
  56         void (*shutdown) (struct net_device * dev);
  57         void (*ack_int) (struct net_device * dev);
  58 };
  59
  60 /* The FEC stores dest/src/type, data, and checksum for receive packets.
  61  */
  62 #define MAX_MTU 1508            /* Allow fullsized pppoe packets over VLAN */
  63 #define MIN_MTU 46              /* this is data size */
  64 #define CRC_LEN 4
  65
  66 #define PKT_MAXBUF_SIZE         (MAX_MTU+ETH_HLEN+CRC_LEN)
  67 #define PKT_MINBUF_SIZE         (MIN_MTU+ETH_HLEN+CRC_LEN)
  68
  69 /* Must be a multiple of 32 (to cover both FEC & FCC) */
  70 #define PKT_MAXBLR_SIZE         ((PKT_MAXBUF_SIZE + 31) & ~31)
  71 /* This is needed so that invalidate_xxx wont invalidate too much */
  72 #define ENET_RX_ALIGN  16
  73 #define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
  74
  75 struct fs_enet_private {
  76         struct napi_struct napi;
  77         struct device *dev;     /* pointer back to the device (must be initialized first) */
  78         struct net_device *ndev;
  79         spinlock_t lock;        /* during all ops except TX pckt processing */
  80         spinlock_t tx_lock;     /* during fs_start_xmit and fs_tx         */
  81         struct fs_platform_info *fpi;
  82         const struct fs_ops *ops;
  83         int rx_ring, tx_ring;
  84         dma_addr_t ring_mem_addr;
  85         void __iomem *ring_base;
  86         struct sk_buff **rx_skbuff;
  87         struct sk_buff **tx_skbuff;
  88         cbd_t __iomem *rx_bd_base;      /* Address of Rx and Tx buffers.    */
  89         cbd_t __iomem *tx_bd_base;
  90         cbd_t __iomem *dirty_tx;        /* ring entries to be free()ed.     */
  91         cbd_t __iomem *cur_rx;
  92         cbd_t __iomem *cur_tx;
  93         int tx_free;
  94         struct net_device_stats stats;
  95         struct timer_list phy_timer_list;
  96         const struct phy_info *phy;
  97         u32 msg_enable;
  98         struct mii_if_info mii_if;
  99         unsigned int last_mii_status;
 100         int interrupt;
 101
 102         struct phy_device *phydev;
 103         int oldduplex, oldspeed, oldlink;       /* current settings */
 104
 105         /* event masks */
 106         u32 ev_napi_rx;         /* mask of NAPI rx events */
 107         u32 ev_rx;              /* rx event mask          */
 108         u32 ev_tx;              /* tx event mask          */
 109         u32 ev_err;             /* error event mask       */
 110
 111         u16 bd_rx_empty;        /* mask of BD rx empty    */
 112         u16 bd_rx_err;          /* mask of BD rx errors   */
 113
 114         union {
 115                 struct {
 116                         int idx;                /* FEC1 = 0, FEC2 = 1  */
 117                         void __iomem *fecp;     /* hw registers        */
 118                         u32 hthi, htlo;         /* state for multicast */
 119                 } fec;
 120
 121                 struct {
 122                         int idx;                /* FCC1-3 = 0-2        */
 123                         void __iomem *fccp;     /* hw registers        */
 124                         void __iomem *ep;       /* parameter ram       */
 125                         void __iomem *fcccp;    /* hw registers cont.  */
 126                         void __iomem *mem;      /* FCC DPRAM */
 127                         u32 gaddrh, gaddrl;     /* group address       */
 128                 } fcc;
 129
 130                 struct {
 131                         int idx;                /* FEC1 = 0, FEC2 = 1  */
 132                         void __iomem *sccp;     /* hw registers        */
 133                         void __iomem *ep;       /* parameter ram       */
 134                         u32 hthi, htlo;         /* state for multicast */
 135                 } scc;
 136
 137         };
 138 };
 139
 140 /***************************************************************************/
 141 #ifndef CONFIG_PPC_CPM_NEW_BINDING
 142 int fs_enet_mdio_bb_init(void);
 143 int fs_enet_mdio_fec_init(void);
 144 #endif
 145
 146 void fs_init_bds(struct net_device *dev);
 147 void fs_cleanup_bds(struct net_device *dev);
 148
 149 /***************************************************************************/
 150
 151 #define DRV_MODULE_NAME         "fs_enet"
 152 #define PFX DRV_MODULE_NAME     ": "
 153 #define DRV_MODULE_VERSION      "1.0"
 154 #define DRV_MODULE_RELDATE      "Aug 8, 2005"
 155
 156 /***************************************************************************/
 157
 158 int fs_enet_platform_init(void);
 159 void fs_enet_platform_cleanup(void);
 160
 161 /***************************************************************************/
 162 /* buffer descriptor access macros */
 163
 164 /* access macros */
 165 #if defined(CONFIG_CPM1)
 166 /* for a a CPM1 __raw_xxx's are sufficient */
 167 #define __cbd_out32(addr, x)    __raw_writel(x, addr)
 168 #define __cbd_out16(addr, x)    __raw_writew(x, addr)
 169 #define __cbd_in32(addr)        __raw_readl(addr)
 170 #define __cbd_in16(addr)        __raw_readw(addr)
 171 #else
 172 /* for others play it safe */
 173 #define __cbd_out32(addr, x)    out_be32(addr, x)
 174 #define __cbd_out16(addr, x)    out_be16(addr, x)
 175 #define __cbd_in32(addr)        in_be32(addr)
 176 #define __cbd_in16(addr)        in_be16(addr)
 177 #endif
 178
 179 /* write */
 180 #define CBDW_SC(_cbd, _sc)              __cbd_out16(&(_cbd)->cbd_sc, (_sc))
 181 #define CBDW_DATLEN(_cbd, _datlen)      __cbd_out16(&(_cbd)->cbd_datlen, (_datlen))
 182 #define CBDW_BUFADDR(_cbd, _bufaddr)    __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
 183
 184 /* read */
 185 #define CBDR_SC(_cbd)                   __cbd_in16(&(_cbd)->cbd_sc)
 186 #define CBDR_DATLEN(_cbd)               __cbd_in16(&(_cbd)->cbd_datlen)
 187 #define CBDR_BUFADDR(_cbd)              __cbd_in32(&(_cbd)->cbd_bufaddr)
 188
 189 /* set bits */
 190 #define CBDS_SC(_cbd, _sc)              CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
 191
 192 /* clear bits */
 193 #define CBDC_SC(_cbd, _sc)              CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
 194
 195 /*******************************************************************/
 196
 197 extern const struct fs_ops fs_fec_ops;
 198 extern const struct fs_ops fs_fcc_ops;
 199 extern const struct fs_ops fs_scc_ops;
 200
 201 /*******************************************************************/
 202
 203 /* handy pointer to the immap */
 204 extern void __iomem *fs_enet_immap;
 205
 206 /*******************************************************************/
 207
 208 #endif