motfecend.c

其中包括88796网卡驱动、mbmflash驱动、i2c接口的eeprom驱动、oki的ml9620can网卡驱动、扩展的串口驱动源代码。适用于moto的ppc8××系列在vxworks环境下。

The only adjustable parameters are the number of TBDs and RBDs that will be
created at run-time.  These parameters are given to the driver when
motFecEndLoad() is called.  There is one RBD associated with each received
frame whereas a single transmit packet normally uses more than one TBD.  For
memory-limited applications, decreasing the number of RBDs may be
desirable.  Decreasing the number of TBDs below a certain point will
provide substantial performance degradation, and is not reccomended. An
adequate number of loaning buffers are also pre-allocated to provide more
buffering before packets are dropped, but this is not configurable.

The relative priority of the netTask and of the other tasks in the system
may heavily affect performance of this driver. Usually the best performance
is achieved when the netTask priority equals that of the other
applications using the driver.

SPECIAL CONSIDERATIONS

Due to the FEC8 errata in the document: "MPC860 Family Device Errata Reference"
available at the Motorola web site, the number of receive buffer
descriptors (RBD) for the FEC (see configNet.h) is kept deliberately high.
According to Motorola, this problem was fixed in Rev. B3 of the silicon.
In memory-bound applications, when using the above mentioned revision of
the MPC860T processor, the user may decrease the number of RBDs
to fit his needs.

SEE ALSO: ifLib,
.I "MPC860T Fast Ethernet Controller (Supplement to the MPC860 User's Manual)"
.I "Motorola MPC860 User's Manual",

INTERNAL
This driver contains conditional compilation switch MOT_FEC_END_DEBUG.
If defined, adds debug output routines.  Output is further
selectable at run-time via the motFecEndDbg global variable.
*/

#include "vxWorks.h"
#include "wdLib.h"
#include "iv.h"
#include "vme.h"
#include "net/mbuf.h"
#include "semLib.h"
#include "lstLib.h"
#include "sys/times.h"
#include "net/unixLib.h"
#include "net/protosw.h"
#include "sys/socket.h"
#include "sys/ioctl.h"
#include "errno.h"
#include "memLib.h"
#include "intLib.h"
#include "net/route.h"
#include "iosLib.h"
#include "errnoLib.h"
#include "vxLib.h" 

#include "cacheLib.h"
#include "logLib.h"
#include "netLib.h"
#include "stdio.h"
#include "stdlib.h"
#include "sysLib.h"
#include "taskLib.h"

#include "net/systm.h"
#include "net/if_subr.h"

#undef ETHER_MAP_IP_MULTICAST
#include "etherMultiLib.h"
#include "end.h"

#define    END_MACROS
#include "endLib.h"

#ifdef WR_IPV6
#include "adv_net.h"
#endif /*WR_IPV6*/

#include "drv/intrCtl/ppc860Intr.h"
#include "motFecEnd.h"

/* defines */

/* initial divisor and final XOR value for reflected CRC */

#define INIT_REFLECTED  0xFFFFFFFF
#define XOROT           INIT_REFLECTED

/* Driver debug control */

#undef MOT_FEC_DBG

/* Driver debug control */

#ifdef MOT_FEC_DBG
#define MOT_FEC_DBG_OFF			0x0000
#define MOT_FEC_DBG_RX			0x0001
#define MOT_FEC_DBG_TX			0x0002
#define MOT_FEC_DBG_POLL		0x0004
#define MOT_FEC_DBG_MII			0x0008
#define MOT_FEC_DBG_LOAD		0x0010
#define MOT_FEC_DBG_IOCTL		0x0020
#define MOT_FEC_DBG_INT			0x0040
#define MOT_FEC_DBG_START    		0x0080
#define MOT_FEC_DBG_ANY    		0xffff

UINT32	motFecEndDbg = MOT_FEC_DBG_OFF;
UINT32	motFecBabRxErr = 0x0;
UINT32	motFecBabTxErr = 0x0;
UINT32	motFecHbFailErr = 0x0;
UINT32	motFecTxLcErr = 0x0;
UINT32	motFecTxUrErr = 0x0;
UINT32	motFecTxCslErr = 0x0;
UINT32	motFecTxRlErr = 0x0;
UINT32	motFecRxLgErr = 0x0;
UINT32	motFecRxNoErr = 0x0;
UINT32	motFecRxCrcErr = 0x0;
UINT32	motFecRxOvErr = 0x0;
UINT32	motFecRxTrErr = 0x0;
UINT32  motFecRxLsErr = 0x0;
UINT32  motFecRxMemErr = 0x0;

DRV_CTRL *  pDrvCtrlDbg = NULL;

#define MOT_FEC_BAB_RX_ADD						\
    motFecBabRxErr++;

#define MOT_FEC_BAB_TX_ADD						\
    motFecBabTxErr++;

#define MOT_FEC_HB_FAIL_ADD						\
    motFecHbFailErr++;

#define MOT_FEC_TX_LC_ADD						\
    motFecTxLcErr++;

#define MOT_FEC_TX_UR_ADD						\
    motFecTxUrErr++;

#define MOT_FEC_TX_CSL_ADD						\
    motFecTxCslErr++;

#define MOT_FEC_TX_RL_ADD						\
    motFecTxRlErr++;

#define MOT_FEC_RX_LG_ADD						\
    motFecRxLgErr++;

#define MOT_FEC_RX_NO_ADD						\
    motFecRxNoErr++;

#define MOT_FEC_RX_CRC_ADD						\
    motFecRxCrcErr++;

#define MOT_FEC_RX_OV_ADD						\
    motFecRxOvErr++;

#define MOT_FEC_RX_TR_ADD						\
    motFecRxTrErr++;

#define MOT_FEC_RX_MEM_ADD						\
    motFecRxMemErr++;

#define MOT_FEC_RX_LS_ADD						\
    motFecRxLsErr++;

#define MOT_FEC_LOG(FLG, X0, X1, X2, X3, X4, X5, X6)                    \
    {                                                                   \
    if (motFecEndDbg & FLG)                                             \
        logMsg (X0, X1, X2, X3, X4, X5, X6);                            \
    }

#else /* MOT_FEC_DBG */

#define MOT_FEC_BAB_RX_ADD
#define MOT_FEC_BAB_TX_ADD
#define MOT_FEC_HB_FAIL_ADD
#define MOT_FEC_TX_LC_ADD
#define MOT_FEC_TX_UR_ADD
#define MOT_FEC_TX_CSL_ADD
#define MOT_FEC_TX_RL_ADD
#define MOT_FEC_RX_MEM_ADD
#define MOT_FEC_RX_LS_ADD
#define MOT_FEC_LOG(FLG, X0, X1, X2, X3, X4, X5, X6)

#endif /* MOT_FEC_DBG */

/* general macros for reading/writing from/to specified locations */

/* Cache and virtual/physical memory related macros */

#define MOT_FEC_PHYS_TO_VIRT(physAddr)					    \
	CACHE_DRV_PHYS_TO_VIRT (&pDrvCtrl->bdCacheFuncs, (char *)(physAddr))

#define MOT_FEC_VIRT_TO_PHYS(virtAddr)					    \
	CACHE_DRV_VIRT_TO_PHYS (&pDrvCtrl->bdCacheFuncs, (char *)(virtAddr))

#define MOT_FEC_BD_CACHE_INVAL(address, len)			    	    \
        CACHE_DRV_INVALIDATE (&pDrvCtrl->bdCacheFuncs, (address), (len))

#define MOT_FEC_CACHE_INVAL(address, len)                                   \
	CACHE_DRV_INVALIDATE (&pDrvCtrl->bufCacheFuncs, (address), (len))

#define MOT_FEC_CACHE_FLUSH(address, len)                                   \
	CACHE_DRV_FLUSH (&pDrvCtrl->bufCacheFuncs, (address), (len))

/* driver flags */

#define MOT_FEC_OWN_MEM		0x01	/* internally provided memory */
#define MOT_FEC_INV_TBD_NUM	0x02	/* invalid tbdNum provided */
#define MOT_FEC_INV_RBD_NUM	0x04	/* invalid rbdNum provided */
#define MOT_FEC_POLLING		0x08	/* polling mode */
#define MOT_FEC_PROM		0x20    /* promiscuous mode */
#define MOT_FEC_MCAST		0x40    /* multicast addressing mode */
#define MOT_FEC_FD		0x80    /* full duplex mode */

/* shortcuts */

#define MOT_FEC_FLAG_CLEAR(clearBits)					\
    (pDrvCtrl->flags &= ~(clearBits))

#define MOT_FEC_FLAG_SET(setBits)					\
    (pDrvCtrl->flags |= (setBits))

#define MOT_FEC_FLAG_GET()						\
    (pDrvCtrl->flags)

#define MOT_FEC_FLAG_ISSET(setBits)					\
    (pDrvCtrl->flags & (setBits))

#define MOT_FEC_PHY_FLAGS_SET(setBits)					\
    (pDrvCtrl->phyInfo->phyFlags |= (setBits))

#define MOT_FEC_PHY_FLAGS_ISSET(setBits)				\
    (pDrvCtrl->phyInfo->phyFlags & (setBits))

#define MOT_FEC_PHY_FLAGS_GET(setBits)					\
    (pDrvCtrl->phyInfo->phyFlags)

#define MOT_FEC_PHY_FLAGS_CLEAR(clearBits)				\
    (pDrvCtrl->phyInfo->phyFlags &= ~(clearBits))

#define MOT_FEC_USR_FLAG_ISSET(setBits)					\
    (pDrvCtrl->userFlags & (setBits))

#define END_FLAGS_ISSET(setBits)					\
    ((&pDrvCtrl->endObj)->flags & (setBits))

#define MOT_FEC_ADDR_GET(pEnd)                                          \
    ((pEnd)->mib2Tbl.ifPhysAddress.phyAddress)

#define MOT_FEC_ADDR_LEN_GET(pEnd)                                      \
    ((pEnd)->mib2Tbl.ifPhysAddress.addrLength)

/* some BDs definitions */

/*
 * the total is 0x600 and it accounts for the required alignment
 * of receive data buffers, and the cluster overhead.
 */

#define MOT_FEC_MAX_CL_LEN      ((MOT_FEC_MAX_PCK_SZ			\
				 + (MOT_FEC_BD_ALIGN - 1)		\
				 + (CL_OVERHEAD - 1))			\
				 & (~ (CL_OVERHEAD - 1)))

#define MOT_FEC_MAX_RX_BUF	((MOT_FEC_MAX_PCK_SZ + MOT_FEC_BD_ALIGN - 1) \
				& (~(MOT_FEC_BD_ALIGN - 1)))

#define MOT_FEC_BUF_V_LEN	(MOT_FEC_MAX_RX_BUF + 16)

#define MOT_FEC_RX_BUF_SZ       (MOT_FEC_MAX_CL_LEN)
#define MOT_FEC_TX_BUF_SZ       (MOT_FEC_MAX_CL_LEN)

#define MOT_FEC_MEM_SZ(pDrvCtrl)					\
    ((pDrvCtrl)->bufSize)

#define MOT_FEC_LOAN_SZ							\
    (MOT_FEC_RX_BUF_SZ * MOT_FEC_BD_LOAN_NUM)

#define MOT_FEC_RX_MEM(pDrvCtrl)					\
    (MOT_FEC_RX_BUF_SZ * ((pDrvCtrl)->rbdNum + MOT_FEC_BD_LOAN_NUM))

#define MOT_FEC_TX_MEM(pDrvCtrl)					\
    (MOT_FEC_TX_BUF_SZ * (MOT_FEC_TBD_POLL_NUM + MOT_FEC_TX_CL_NUM))

#define MOT_FEC_TBD_MEM(pDrvCtrl)					\
    (MOT_FEC_TBD_SZ * (pDrvCtrl)->tbdNum)

#define MOT_FEC_RBD_MEM(pDrvCtrl)					\
    (MOT_FEC_RBD_SZ * (pDrvCtrl)->rbdNum)

#define MOT_FEC_BD_MEM(pDrvCtrl)					\
    (MOT_FEC_TBD_MEM (pDrvCtrl) + MOT_FEC_RBD_MEM (pDrvCtrl))

/* Control/Status Registers (CSR) definitions */

#define MOT_FEC_CSR_WR(csrOff, csrVal)					\
    {									\
    UINT32 temp = 0;							\
									\
    temp = (UINT32) MOT_FEC_VIRT_TO_PHYS ((pDrvCtrl->motCpmAddr) 	\
					  + ((UINT32)csrOff));			\
									\
    MOT_FEC_LONG_WR ((UINT32 *) (temp), (csrVal));			\
    }									

#define MOT_FEC_CSR_RD(csrOff, csrVal)					\
    {									\
    UINT32 temp = 0;							\
									\
    temp = (UINT32) MOT_FEC_VIRT_TO_PHYS ((pDrvCtrl->motCpmAddr) 	\
					  + ((UINT32)csrOff));			\
									\
    MOT_FEC_LONG_RD ((UINT32 *) (temp), (csrVal));			\
    }									

#define MOT_FEC_CSR_MII_WR(csrOff, csrVal)					\
    {									\
    UINT32 temp = 0;							\
									\
    temp = (UINT32) MOT_FEC_VIRT_TO_PHYS ((pDrvCtrl->motCpmAddr) 	\
					  + ((UINT32)csrOff));			\
									\
    MOT_FEC_LONG_WR ((UINT32 *) (temp), (csrVal));			\
    }									

#define MOT_FEC_CSR_MII_RD(csrOff, csrVal)					\
    {									\
    UINT32 temp = 0;							\
									\
    temp = (UINT32) MOT_FEC_VIRT_TO_PHYS ((pDrvCtrl->motCpmAddr) 	\
					  + ((UINT32)csrOff));			\
									\
    MOT_FEC_LONG_RD ((UINT32 *) (temp), (csrVal));			\
    }									

/* macros to read/write tx/rx buffer descriptors */

#define MOT_FEC_BD_WORD_WR(bdAddr, bdOff, bdVal)			\
    {									\
    UINT32 temp = 0;							\
									\
    temp = (UINT32) MOT_FEC_VIRT_TO_PHYS ((bdAddr) + (bdOff));		\
									\
    MOT_FEC_WORD_WR ((UINT16 *) (temp), (bdVal));			\
    }									

/* here we're writing the data pointer, so it's a physical address */

#define MOT_FEC_BD_LONG_WR(bdAddr, bdOff, bdVal)			\
    {									\
    UINT32 temp1 = 0;							\
    UINT32 temp2 = 0;							\
									\
    temp1 = (UINT32) MOT_FEC_VIRT_TO_PHYS ((bdAddr) + (bdOff));		\
    temp2 = (UINT32) MOT_FEC_VIRT_TO_PHYS (bdVal);			\
									\
    MOT_FEC_LONG_WR ((UINT32 *) (temp1), (temp2));			\
    }									

#define MOT_FEC_BD_WORD_RD(bdAddr, bdOff, bdVal)			\
    {									\
    UINT32 temp = 0;							\
									\
    temp = (UINT32) MOT_FEC_VIRT_TO_PHYS ((bdAddr) + (bdOff));		\
									\
    MOT_FEC_WORD_RD ((UINT16 *) (temp), (bdVal));					\
    }									

#define MOT_FEC_BD_LONG_RD(bdAddr, bdOff, bdVal)			\
    {									\
    UINT32 temp1 = 0;							\
    UINT32 temp2 = 0;							\