linux/drivers/net/fs_enet/fs_enet.h

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#ifndef FS_ENET_H
#define FS_ENET_H
#include <linux/mii.h>
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/phy.h>
#include <linux/dma-mapping.h>
#include <linux/fs_enet_pd.h>
#include <asm/fs_pd.h>
#ifdef CONFIG_CPM1
#include <asm/cpm1.h>
struct fec_info {
fec_t __iomem *fecp;
u32 mii_speed;
};
#endif
#ifdef CONFIG_CPM2
#include <asm/cpm2.h>
#endif
/* hw driver ops */
struct fs_ops {
int (*setup_data)(struct net_device *dev);
int (*allocate_bd)(struct net_device *dev);
void (*free_bd)(struct net_device *dev);
void (*cleanup_data)(struct net_device *dev);
void (*set_multicast_list)(struct net_device *dev);
void (*adjust_link)(struct net_device *dev);
void (*restart)(struct net_device *dev);
void (*stop)(struct net_device *dev);
void (*napi_clear_rx_event)(struct net_device *dev);
void (*napi_enable_rx)(struct net_device *dev);
void (*napi_disable_rx)(struct net_device *dev);
void (*rx_bd_done)(struct net_device *dev);
void (*tx_kickstart)(struct net_device *dev);
u32 (*get_int_events)(struct net_device *dev);
void (*clear_int_events)(struct net_device *dev, u32 int_events);
void (*ev_error)(struct net_device *dev, u32 int_events);
int (*get_regs)(struct net_device *dev, void *p, int *sizep);
int (*get_regs_len)(struct net_device *dev);
void (*tx_restart)(struct net_device *dev);
};
struct phy_info {
unsigned int id;
const char *name;
void (*startup) (struct net_device * dev);
void (*shutdown) (struct net_device * dev);
void (*ack_int) (struct net_device * dev);
};
/* The FEC stores dest/src/type, data, and checksum for receive packets.
*/
#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */
#define MIN_MTU 46 /* this is data size */
#define CRC_LEN 4
#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN)
#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN)
/* Must be a multiple of 32 (to cover both FEC & FCC) */
#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE + 31) & ~31)
/* This is needed so that invalidate_xxx wont invalidate too much */
#define ENET_RX_ALIGN 16
#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
struct fs_enet_private {
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
struct napi_struct napi;
struct device *dev; /* pointer back to the device (must be initialized first) */
struct net_device *ndev;
spinlock_t lock; /* during all ops except TX pckt processing */
spinlock_t tx_lock; /* during fs_start_xmit and fs_tx */
struct fs_platform_info *fpi;
const struct fs_ops *ops;
int rx_ring, tx_ring;
dma_addr_t ring_mem_addr;
void __iomem *ring_base;
struct sk_buff **rx_skbuff;
struct sk_buff **tx_skbuff;
cbd_t __iomem *rx_bd_base; /* Address of Rx and Tx buffers. */
cbd_t __iomem *tx_bd_base;
cbd_t __iomem *dirty_tx; /* ring entries to be free()ed. */
cbd_t __iomem *cur_rx;
cbd_t __iomem *cur_tx;
int tx_free;
struct net_device_stats stats;
struct timer_list phy_timer_list;
const struct phy_info *phy;
u32 msg_enable;
struct mii_if_info mii_if;
unsigned int last_mii_status;
int interrupt;
struct phy_device *phydev;
int oldduplex, oldspeed, oldlink; /* current settings */
/* event masks */
u32 ev_napi_rx; /* mask of NAPI rx events */
u32 ev_rx; /* rx event mask */
u32 ev_tx; /* tx event mask */
u32 ev_err; /* error event mask */
u16 bd_rx_empty; /* mask of BD rx empty */
u16 bd_rx_err; /* mask of BD rx errors */
union {
struct {
int idx; /* FEC1 = 0, FEC2 = 1 */
void __iomem *fecp; /* hw registers */
u32 hthi, htlo; /* state for multicast */
} fec;
struct {
int idx; /* FCC1-3 = 0-2 */
void __iomem *fccp; /* hw registers */
void __iomem *ep; /* parameter ram */
void __iomem *fcccp; /* hw registers cont. */
void __iomem *mem; /* FCC DPRAM */
u32 gaddrh, gaddrl; /* group address */
} fcc;
struct {
int idx; /* FEC1 = 0, FEC2 = 1 */
void __iomem *sccp; /* hw registers */
void __iomem *ep; /* parameter ram */
u32 hthi, htlo; /* state for multicast */
} scc;
};
};
/***************************************************************************/
void fs_init_bds(struct net_device *dev);
void fs_cleanup_bds(struct net_device *dev);
/***************************************************************************/
#define DRV_MODULE_NAME "fs_enet"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "1.0"
#define DRV_MODULE_RELDATE "Aug 8, 2005"
/***************************************************************************/
int fs_enet_platform_init(void);
void fs_enet_platform_cleanup(void);
/***************************************************************************/
/* buffer descriptor access macros */
/* access macros */
#if defined(CONFIG_CPM1)
/* for a a CPM1 __raw_xxx's are sufficient */
#define __cbd_out32(addr, x) __raw_writel(x, addr)
#define __cbd_out16(addr, x) __raw_writew(x, addr)
#define __cbd_in32(addr) __raw_readl(addr)
#define __cbd_in16(addr) __raw_readw(addr)
#else
/* for others play it safe */
#define __cbd_out32(addr, x) out_be32(addr, x)
#define __cbd_out16(addr, x) out_be16(addr, x)
#define __cbd_in32(addr) in_be32(addr)
#define __cbd_in16(addr) in_be16(addr)
#endif
/* write */
#define CBDW_SC(_cbd, _sc) __cbd_out16(&(_cbd)->cbd_sc, (_sc))
#define CBDW_DATLEN(_cbd, _datlen) __cbd_out16(&(_cbd)->cbd_datlen, (_datlen))
#define CBDW_BUFADDR(_cbd, _bufaddr) __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
/* read */
#define CBDR_SC(_cbd) __cbd_in16(&(_cbd)->cbd_sc)
#define CBDR_DATLEN(_cbd) __cbd_in16(&(_cbd)->cbd_datlen)
#define CBDR_BUFADDR(_cbd) __cbd_in32(&(_cbd)->cbd_bufaddr)
/* set bits */
#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
/* clear bits */
#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
/*******************************************************************/
extern const struct fs_ops fs_fec_ops;
extern const struct fs_ops fs_fcc_ops;
extern const struct fs_ops fs_scc_ops;
/*******************************************************************/
#endif