PRIVATE IX_OSAL_MBUF *
ixOsalBuffPoolMbufInit (UINT32 mbufSizeAligned,
UINT32 dataSizeAligned,
IX_OSAL_MBUF_POOL *poolPtr)
{
UINT8 *dataPtr;
IX_OSAL_MBUF *realMbufPtr;
/* Allocate cache-aligned memory for mbuf header */
realMbufPtr = (IX_OSAL_MBUF *) IX_OSAL_CACHE_DMA_MALLOC (mbufSizeAligned);
IX_OSAL_ASSERT (realMbufPtr != NULL);
memset (realMbufPtr, 0, mbufSizeAligned);
/* Allocate cache-aligned memory for mbuf data */
dataPtr = (UINT8 *) IX_OSAL_CACHE_DMA_MALLOC (dataSizeAligned);
IX_OSAL_ASSERT (dataPtr != NULL);
memset (dataPtr, 0, dataSizeAligned);
/* Fill in mbuf header fields */
IX_OSAL_MBUF_MDATA (realMbufPtr) = dataPtr;
IX_OSAL_MBUF_ALLOCATED_BUFF_DATA (realMbufPtr) = (UINT32)dataPtr;
IX_OSAL_MBUF_MLEN (realMbufPtr) = dataSizeAligned;
IX_OSAL_MBUF_ALLOCATED_BUFF_LEN (realMbufPtr) = dataSizeAligned;
IX_OSAL_MBUF_NET_POOL (realMbufPtr) = (IX_OSAL_MBUF_POOL *) poolPtr;
IX_OSAL_MBUF_SYS_SIGNATURE_INIT(realMbufPtr);
/* update some statistical information */
poolPtr->mbufMemSize += mbufSizeAligned;
poolPtr->dataMemSize += dataSizeAligned;
return realMbufPtr;
}
PUBLIC IX_OSAL_MBUF *
ixOsalMbufFree (IX_OSAL_MBUF * bufPtr)
{
int lock;
IX_OSAL_MBUF_POOL *poolPtr;
IX_OSAL_MBUF *nextBufPtr = NULL;
/*
* check parameters
*/
if (bufPtr == NULL)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
IX_OSAL_LOG_DEV_STDOUT,
"ixOsalMbufFree(): "
"ERROR - Invalid Parameter\n", 0, 0, 0, 0, 0, 0);
return NULL;
}
lock = ixOsalIrqLock ();
#ifdef IX_OSAL_BUFFER_FREE_PROTECTION
/* Prevention for Buffer freed more than once*/
if(!IX_OSAL_MBUF_ISSET_USED_FLAG(bufPtr))
{
ixOsalIrqUnlock (lock);
return NULL;
}
IX_OSAL_MBUF_CLEAR_USED_FLAG(bufPtr);
#endif
poolPtr = IX_OSAL_MBUF_NET_POOL (bufPtr);
/*
* check the mbuf wrapper signature (if mbuf wrapper was used)
*/
if (poolPtr->poolAllocType == IX_OSAL_MBUF_POOL_TYPE_SYS_ALLOC)
{
IX_OSAL_ENSURE ( (IX_OSAL_MBUF_GET_SYS_SIGNATURE(bufPtr) == IX_OSAL_MBUF_SYS_SIGNATURE),
"ixOsalBuffPoolBufFree: ERROR - Invalid mbuf signature.");
}
nextBufPtr = IX_OSAL_MBUF_NEXT_BUFFER_IN_PKT_PTR (bufPtr);
IX_OSAL_MBUF_NEXT_BUFFER_IN_PKT_PTR (bufPtr) = poolPtr->nextFreeBuf;
poolPtr->nextFreeBuf = bufPtr;
/*
* update the number of free buffers in the pool
*/
poolPtr->freeBufsInPool++;
ixOsalIrqUnlock (lock);
return nextBufPtr;
}
PUBLIC void
ixOsalMbufDataPtrReset (IX_OSAL_MBUF * bufPtr)
{
IX_OSAL_MBUF_POOL *poolPtr;
UINT8 *poolDataPtr;
if (bufPtr == NULL)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR, IX_OSAL_LOG_DEV_STDOUT,
"ixOsalBuffPoolBufDataPtrReset"
": ERROR - Invalid Parameter\n", 0, 0, 0, 0, 0, 0);
return;
}
poolPtr = (IX_OSAL_MBUF_POOL *) IX_OSAL_MBUF_NET_POOL (bufPtr);
poolDataPtr = poolPtr->dataMemPtr;
if (poolPtr->poolAllocType == IX_OSAL_MBUF_POOL_TYPE_SYS_ALLOC)
{
if (IX_OSAL_MBUF_GET_SYS_SIGNATURE(bufPtr) != IX_OSAL_MBUF_SYS_SIGNATURE)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR, IX_OSAL_LOG_DEV_STDOUT,
"ixOsalBuffPoolBufDataPtrReset"
": invalid mbuf, cannot reset mData pointer\n", 0, 0,
0, 0, 0, 0);
return;
}
IX_OSAL_MBUF_MDATA (bufPtr) = (UINT8*)IX_OSAL_MBUF_ALLOCATED_BUFF_DATA (bufPtr);
}
else
{
if (poolDataPtr)
{
unsigned int bufSize = poolPtr->bufDataSize;
unsigned int bufDataAddr =
(unsigned int) IX_OSAL_MBUF_MDATA (bufPtr);
unsigned int poolDataAddr = (unsigned int) poolDataPtr;
/*
* the pointer is still pointing somewhere in the mbuf payload.
* This operation moves the pointer to the beginning of the
* mbuf payload
*/
bufDataAddr = ((bufDataAddr - poolDataAddr) / bufSize) * bufSize;
IX_OSAL_MBUF_MDATA (bufPtr) = &poolDataPtr[bufDataAddr];
}
else
{
ixOsalLog (IX_OSAL_LOG_LVL_WARNING, IX_OSAL_LOG_DEV_STDOUT,
"ixOsalBuffPoolBufDataPtrReset"
": cannot be used if user supplied NULL pointer for pool data area "
"when pool was created\n", 0, 0, 0, 0, 0, 0);
return;
}
}
}
PUBLIC IX_OSAL_MBUF_POOL *
ixOsalNoAllocPoolInit (void *poolBufPtr,
void *poolDataPtr, UINT32 count, UINT32 size, const char *name)
{
UINT32 i, mbufSizeAligned, sizeAligned;
IX_OSAL_MBUF *currentMbufPtr = NULL;
IX_OSAL_MBUF *nextMbufPtr = NULL;
IX_OSAL_MBUF_POOL *poolPtr = NULL;
/*
* check parameters
*/
if (poolBufPtr == NULL)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
IX_OSAL_LOG_DEV_STDOUT,
"ixOsalNoAllocPoolInit(): "
"ERROR - NULL poolBufPtr \n", 0, 0, 0, 0, 0, 0);
return NULL;
}
if (count <= 0)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
IX_OSAL_LOG_DEV_STDOUT,
"ixOsalNoAllocPoolInit(): "
"ERROR - count must > 0 \n", 0, 0, 0, 0, 0, 0);
return NULL;
}
if (name == NULL)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
IX_OSAL_LOG_DEV_STDOUT,
"ixOsalNoAllocPoolInit(): "
"ERROR - NULL name ptr \n", 0, 0, 0, 0, 0, 0);
return NULL;
}
if (strlen (name) > IX_OSAL_MBUF_POOL_NAME_LEN)
{
ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
IX_OSAL_LOG_DEV_STDOUT,
"ixOsalNoAllocPoolInit(): "
"ERROR - name length should be no greater than %d \n",
IX_OSAL_MBUF_POOL_NAME_LEN, 0, 0, 0, 0, 0);
return NULL;
}
poolPtr = ixOsalPoolAlloc ();
if (poolPtr == NULL)
{
return NULL;
}
/*
* Adjust sizes to ensure alignment on cache line boundaries
*/
mbufSizeAligned =
IX_OSAL_MBUF_POOL_SIZE_ALIGN (sizeof (IX_OSAL_MBUF));
/*
* clear the mbuf memory area
*/
memset (poolBufPtr, 0, mbufSizeAligned * count);
if (poolDataPtr != NULL)
{
/*
* Adjust sizes to ensure alignment on cache line boundaries
*/
sizeAligned = IX_OSAL_MBUF_POOL_SIZE_ALIGN (size);
/*
* clear the data memory area
*/
memset (poolDataPtr, 0, sizeAligned * count);
}
else
{
sizeAligned = 0;
}
/*
* initialise pool fields
*/
strcpy ((poolPtr)->name, name);
poolPtr->dataMemPtr = poolDataPtr;
poolPtr->mbufMemPtr = poolBufPtr;
poolPtr->bufDataSize = sizeAligned;
poolPtr->totalBufsInPool = count;
poolPtr->mbufMemSize = mbufSizeAligned * count;
poolPtr->dataMemSize = sizeAligned * count;
currentMbufPtr = (IX_OSAL_MBUF *) poolBufPtr;
poolPtr->nextFreeBuf = currentMbufPtr;
for (i = 0; i < count; i++)
{
if (i < (count - 1))
{
nextMbufPtr =
(IX_OSAL_MBUF *) ((unsigned) currentMbufPtr +
mbufSizeAligned);
}
else
{ /* last mbuf in chain */
nextMbufPtr = NULL;
}
IX_OSAL_MBUF_NEXT_BUFFER_IN_PKT_PTR (currentMbufPtr) = nextMbufPtr;
IX_OSAL_MBUF_NET_POOL (currentMbufPtr) = poolPtr;
IX_OSAL_MBUF_SYS_SIGNATURE_INIT(currentMbufPtr);
if (poolDataPtr != NULL)
{
IX_OSAL_MBUF_MDATA (currentMbufPtr) = poolDataPtr;
IX_OSAL_MBUF_ALLOCATED_BUFF_DATA(currentMbufPtr) = (UINT32) poolDataPtr;
IX_OSAL_MBUF_MLEN (currentMbufPtr) = sizeAligned;
IX_OSAL_MBUF_ALLOCATED_BUFF_LEN(currentMbufPtr) = sizeAligned;
poolDataPtr = (void *) ((unsigned) poolDataPtr + sizeAligned);
}
currentMbufPtr = nextMbufPtr;
}
/*
* update the number of free buffers in the pool
*/
poolPtr->freeBufsInPool = count;
poolPtr->poolAllocType = IX_OSAL_MBUF_POOL_TYPE_USER_ALLOC;
return poolPtr;
}
