* Update Intel IXP4xx support

- Add IXP4xx NPE ethernet MAC support
- Add support for Intel IXDPG425 board
- Add support for Prodrive PDNB3 board
- Add IRQ support
Patch by Stefan Roese, 23 May 2006

[This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still
 sufferes from licensing issues. Blame Intel.]

1 files changed, 245 insertions, 0 deletions

diff --git a/cpu/ixp/npe/include/IxEthAccDataPlane_p.h b/cpu/ixp/npe/include/IxEthAccDataPlane_p.h
new file mode 100644
index 0000000..8b8e6b2
--- /dev/null
+++ b/cpu/ixp/npe/include/IxEthAccDataPlane_p.h
@@ -0,0 +1,245 @@
+/**
+ * @file IxEthAccDataPlane_p.h
+ *
+ * @author Intel Corporation
+ * @date 12-Feb-2002
+ *
+ * @brief  Internal Header file for IXP425 Ethernet Access component.
+ *
+ * Design Notes:
+ *
+ * 
+ * @par
+ * IXP400 SW Release version 2.0
+ * 
+ * -- Copyright Notice --
+ * 
+ * @par
+ * Copyright 2001-2005, Intel Corporation.
+ * All rights reserved.
+ * 
+ * @par
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * @par
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * @par
+ * -- End of Copyright Notice --
+ */
+
+
+
+#ifndef IxEthAccDataPlane_p_H
+#define IxEthAccDataPlane_p_H
+
+#include <IxOsal.h>
+#include <IxQMgr.h>
+
+/**
+ * @addtogroup IxEthAccPri
+ *@{
+ */
+
+/* typedefs global to this file*/
+
+typedef struct
+{
+    IX_OSAL_MBUF *pHead;
+    IX_OSAL_MBUF *pTail;
+}IxEthAccDataPlaneQList;
+
+
+/**
+ * @struct  IxEthAccDataPlaneStats
+ * @brief   Statistics data structure associated with the data plane
+ *
+ */
+typedef struct
+{
+    UINT32 addToSwQ;
+    UINT32 removeFromSwQ;
+    UINT32 unchainedTxMBufs;
+    UINT32 chainedTxMBufs;
+    UINT32 unchainedTxDoneMBufs;
+    UINT32 chainedTxDoneMBufs;
+    UINT32 unchainedRxMBufs;
+    UINT32 chainedRxMBufs;
+    UINT32 unchainedRxFreeMBufs;
+    UINT32 chainedRxFreeMBufs;
+    UINT32 rxCallbackCounter;
+    UINT32 rxCallbackBurstRead;
+    UINT32 txDoneCallbackCounter;
+    UINT32 unexpectedError;
+} IxEthAccDataPlaneStats;
+
+/**
+ * @fn ixEthAccMbufFromSwQ
+ * @brief  used during disable steps to convert mbufs from 
+ *  swq format, ready to be pushed into hw queues for NPE, 
+ *  back into XScale format 
+ */
+IX_OSAL_MBUF *ixEthAccMbufFromSwQ(IX_OSAL_MBUF *mbuf);
+
+/**
+ * @fn ixEthAccDataPlaneShow
+ * @brief  Show function (for data plane statistics
+ */
+void ixEthAccDataPlaneShow(void);
+
+/*
+ * lock dataplane when atomic operation is required
+ */
+#define IX_ETH_ACC_DATA_PLANE_LOCK(arg) arg = ixOsalIrqLock();
+#define IX_ETH_ACC_DATA_PLANE_UNLOCK(arg) ixOsalIrqUnlock(arg);
+
+/*
+ * Use MBUF fields
+ */
+#define IX_ETHACC_NE_SHARED(mBufPtr) \
+ ((IxEthAccNe *)&((mBufPtr)->ix_ne))
+
+#if 1
+
+#define IX_ETHACC_NE_NEXT(mBufPtr) (mBufPtr)->ix_ne.reserved[0]
+
+/* tm - wrong!! len and pkt_len are in the second word - #define IX_ETHACC_NE_LEN(mBufPtr) (mBufPtr)->ix_ne.reserved[3] */
+#define IX_ETHACC_NE_LEN(mBufPtr) (mBufPtr)->ix_ne.reserved[1]
+
+#define IX_ETHACC_NE_DATA(mBufPtr)(mBufPtr)->ix_ne.reserved[2]
+
+#else
+
+#define IX_ETHACC_NE_NEXT(mBufPtr) \
+  IX_ETHACC_NE_SHARED(mBufPtr)->ixReserved_next
+
+#define IX_ETHACC_NE_LEN(mBufPtr) \
+  IX_ETHACC_NE_SHARED(mBufPtr)->ixReserved_lengths
+
+#define IX_ETHACC_NE_DATA(mBufPtr) \
+  IX_ETHACC_NE_SHARED(mBufPtr)->ixReserved_data
+#endif
+
+/*
+ * Use MBUF  next pointer field to chain data.
+ */
+#define IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER(mbuf) (mbuf)->ix_ctrl.ix_chain
+
+
+
+#define IX_ETH_ACC_DATAPLANE_IS_Q_EMPTY(mbuf_list) ((mbuf_list.pHead) == NULL)
+    
+
+#define IX_ETH_ACC_DATAPLANE_ADD_MBUF_TO_Q_HEAD(mbuf_list,mbuf_to_add) 		\
+  do {										\
+    int lockVal;								\
+    IX_ETH_ACC_DATA_PLANE_LOCK(lockVal);                                    	\
+    IX_ETH_ACC_STATS_INC(ixEthAccDataStats.addToSwQ);                           \
+    if ( (mbuf_list.pHead) != NULL ) 						\
+    {										\
+      (IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add))) = (mbuf_list.pHead);\
+      (mbuf_list.pHead) = (mbuf_to_add);					\
+    } 										\
+    else {									\
+      (mbuf_list.pTail) = (mbuf_list.pHead) = (mbuf_to_add);			\
+      IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add)) = NULL;		\
+    } 										\
+    IX_ETH_ACC_DATA_PLANE_UNLOCK(lockVal);					\
+  } while(0)
+
+
+#define IX_ETH_ACC_DATAPLANE_ADD_MBUF_TO_Q_TAIL(mbuf_list,mbuf_to_add)   	\
+  do {										\
+    int lockVal;								\
+    IX_ETH_ACC_DATA_PLANE_LOCK(lockVal);                                    	\
+    IX_ETH_ACC_STATS_INC(ixEthAccDataStats.addToSwQ);                           \
+    if ( (mbuf_list.pHead) == NULL ) 						\
+    {										\
+      (mbuf_list.pHead) = mbuf_to_add;						\
+      IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add)) = NULL;		\
+    } 										\
+    else {									\
+      IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_list.pTail)) = (mbuf_to_add);	\
+      IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_add)) = NULL;		\
+    } 										\
+    (mbuf_list.pTail) = mbuf_to_add;						\
+    IX_ETH_ACC_DATA_PLANE_UNLOCK(lockVal);					\
+  } while (0)
+
+
+#define IX_ETH_ACC_DATAPLANE_REMOVE_MBUF_FROM_Q_HEAD(mbuf_list,mbuf_to_rem)   	\
+  do {										\
+    int lockVal;								\
+    IX_ETH_ACC_DATA_PLANE_LOCK(lockVal);                                    	\
+    if ( (mbuf_list.pHead) != NULL ) 						\
+    {										\
+      IX_ETH_ACC_STATS_INC(ixEthAccDataStats.removeFromSwQ);                    \
+      (mbuf_to_rem) = (mbuf_list.pHead) ;					\
+      (mbuf_list.pHead) = (IX_ETH_ACC_MBUF_NEXT_PKT_CHAIN_MEMBER((mbuf_to_rem)));\
+    } 										\
+    else {									\
+      (mbuf_to_rem) = NULL;							\
+    } 										\
+    IX_ETH_ACC_DATA_PLANE_UNLOCK(lockVal);					\
+  } while (0)
+
+
+/**
+ * @brief message handler QManager entries for NPE id => port ID conversion (NPE_B => 0, NPE_C => 1)
+ */
+#define IX_ETH_ACC_PORT_TO_NPE_ID(port) \
+   ixEthAccPortData[(port)].npeId
+
+#define IX_ETH_ACC_NPE_TO_PORT_ID(npe) ((npe == 0 ? 2 : (npe == 1 ? 0 : ( npe == 2 ? 1 : -1 ))))
+
+#define IX_ETH_ACC_PORT_TO_TX_Q_ID(port)  \
+   ixEthAccPortData[(port)].ixEthAccTxData.txQueue
+
+#define IX_ETH_ACC_PORT_TO_RX_FREE_Q_ID(port) \
+   ixEthAccPortData[(port)].ixEthAccRxData.rxFreeQueue
+
+#define IX_ETH_ACC_PORT_TO_TX_Q_SOURCE(port)    (port == IX_ETH_PORT_1 ? IX_ETH_ACC_TX_FRAME_ENET0_Q_SOURCE : (port == IX_ETH_PORT_2 ? IX_ETH_ACC_TX_FRAME_ENET1_Q_SOURCE : IX_ETH_ACC_TX_FRAME_ENET2_Q_SOURCE))
+
+#define IX_ETH_ACC_PORT_TO_RX_FREE_Q_SOURCE(port) (port == IX_ETH_PORT_1 ? IX_ETH_ACC_RX_FREE_BUFF_ENET0_Q_SOURCE : (port == IX_ETH_PORT_2 ? IX_ETH_ACC_RX_FREE_BUFF_ENET1_Q_SOURCE : IX_ETH_ACC_RX_FREE_BUFF_ENET2_Q_SOURCE ))
+
+/* Flush the mbufs chain and all data pointed to by the mbuf */
+
+#ifndef NDEBUG
+#define IX_ETH_ACC_STATS_INC(x) (x++)
+#else
+#define IX_ETH_ACC_STATS_INC(x)
+#endif
+
+#define IX_ETH_ACC_MAX_TX_FRAMES_TO_SUBMIT 128
+
+void ixEthRxFrameQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
+void ixEthRxMultiBufferQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
+void ixEthTxFrameDoneQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
+
+#endif /* IxEthAccDataPlane_p_H */
+
+
+/**
+ *@}
+ */
+