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Diffstat (limited to 'cpu/ixp/npe/include/IxOsalBufferMgt.h')
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diff --git a/cpu/ixp/npe/include/IxOsalBufferMgt.h b/cpu/ixp/npe/include/IxOsalBufferMgt.h new file mode 100644 index 0000000..497ed04 --- /dev/null +++ b/cpu/ixp/npe/include/IxOsalBufferMgt.h @@ -0,0 +1,621 @@ +/** + * @file IxOsalBufferMgt.h + * + * @brief OSAL Buffer pool management and buffer management definitions. + * + * 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 -- + */ +/* @par + * -- Copyright Notice -- + * + * @par + * Copyright 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 + * The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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 IxOsalBufferMgt_H +#define IxOsalBufferMgt_H + +#include "IxOsal.h" +/** + * @defgroup IxOsalBufferMgt OSAL Buffer Management Module. + * + * @brief Buffer management module for IxOsal + * + * @{ + */ + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_MAX_POOLS + * + * @brief The maximum number of pools that can be allocated, must be + * a multiple of 32 as required by implementation logic. + * @note This can safely be increased if more pools are required. + */ +#define IX_OSAL_MBUF_MAX_POOLS 32 + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_NAME_LEN + * + * @brief The maximum string length of the pool name + */ +#define IX_OSAL_MBUF_POOL_NAME_LEN 64 + + + +/** + * Define IX_OSAL_MBUF + */ + + +/* forward declaration of internal structure */ +struct __IXP_BUF; + +/* + * OS can define it in IxOsalOs.h to skip the following + * definition. + */ +#ifndef IX_OSAL_ATTRIBUTE_ALIGN32 +#define IX_OSAL_ATTRIBUTE_ALIGN32 __attribute__ ((aligned(32))) +#endif + +/* release v1.4 backward compatible definitions */ +struct __IX_MBUF +{ + struct __IXP_BUF *ix_next IX_OSAL_ATTRIBUTE_ALIGN32; + struct __IXP_BUF *ix_nextPacket; + UINT8 *ix_data; + UINT32 ix_len; + unsigned char ix_type; + unsigned char ix_flags; + unsigned short ix_reserved; + UINT32 ix_rsvd; + UINT32 ix_PktLen; + void *ix_priv; +}; + +struct __IX_CTRL +{ + UINT32 ix_reserved[2]; /**< Reserved field */ + UINT32 ix_signature; /**< Field to indicate if buffers are allocated by the system */ + UINT32 ix_allocated_len; /**< Allocated buffer length */ + UINT32 ix_allocated_data; /**< Allocated buffer data pointer */ + void *ix_pool; /**< pointer to the buffer pool */ + struct __IXP_BUF *ix_chain; /**< chaining */ + void *ix_osbuf_ptr; /**< Storage for OS-specific buffer pointer */ +}; + +struct __IX_NE_SHARED +{ + UINT32 reserved[8] IX_OSAL_ATTRIBUTE_ALIGN32; /**< Reserved area for NPE Service-specific usage */ +}; + + +/* + * IXP buffer structure + */ +typedef struct __IXP_BUF +{ + struct __IX_MBUF ix_mbuf IX_OSAL_ATTRIBUTE_ALIGN32; /**< buffer header */ + struct __IX_CTRL ix_ctrl; /**< buffer management */ + struct __IX_NE_SHARED ix_ne; /**< Reserved area for NPE Service-specific usage*/ +} IXP_BUF; + + + +/** + * @ingroup IxOsalBufferMgt + * + * @def typedef IX_OSAL_MBUF + * + * @brief Generic IXP mbuf format. + */ +typedef IXP_BUF IX_OSAL_MBUF; + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_IXP_NEXT_BUFFER_IN_PKT_PTR(m_blk_ptr) + * + * @brief Return pointer to the next mbuf in a single packet + */ +#define IX_OSAL_MBUF_NEXT_BUFFER_IN_PKT_PTR(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_next + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_NEXT_PKT_IN_CHAIN_PTR(m_blk_ptr) + * + * @brief Return pointer to the next packet in the chain + */ +#define IX_OSAL_MBUF_NEXT_PKT_IN_CHAIN_PTR(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_nextPacket + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_MDATA(m_blk_ptr) + * + * @brief Return pointer to the data in the mbuf + */ +#define IX_OSAL_MBUF_MDATA(m_blk_ptr) (m_blk_ptr)->ix_mbuf.ix_data + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_MLEN(m_blk_ptr) + * + * @brief Return the data length + */ +#define IX_OSAL_MBUF_MLEN(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_len + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_MTYPE(m_blk_ptr) + * + * @brief Return the data type in the mbuf + */ +#define IX_OSAL_MBUF_MTYPE(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_type + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_FLAGS(m_blk_ptr) + * + * @brief Return the buffer flags + */ +#define IX_OSAL_MBUF_FLAGS(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_flags + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_NET_POOL(m_blk_ptr) + * + * @brief Return pointer to a network pool + */ +#define IX_OSAL_MBUF_NET_POOL(m_blk_ptr) \ + (m_blk_ptr)->ix_ctrl.ix_pool + + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_PKT_LEN(m_blk_ptr) + * + * @brief Return the total length of all the data in + * the mbuf chain for this packet + */ +#define IX_OSAL_MBUF_PKT_LEN(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_PktLen + + + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_PRIV(m_blk_ptr) + * + * @brief Return the private field + */ +#define IX_OSAL_MBUF_PRIV(m_blk_ptr) \ + (m_blk_ptr)->ix_mbuf.ix_priv + + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_SIGNATURE(m_blk_ptr) + * + * @brief Return the signature field of IX_OSAL_MBUF + */ +#define IX_OSAL_MBUF_SIGNATURE(m_blk_ptr) \ + (m_blk_ptr)->ix_ctrl.ix_signature + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_OSBUF_PTR(m_blk_ptr) + * + * @brief Return ix_osbuf_ptr field of IX_OSAL_MBUF, which is used to store OS-specific buffer pointer during a buffer conversion. + */ +#define IX_OSAL_MBUF_OSBUF_PTR(m_blk_ptr) \ + (m_blk_ptr)->ix_ctrl.ix_osbuf_ptr + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_ALLOCATED_BUFF_LEN(m_blk_ptr) + * + * @brief Return the allocated buffer size + */ +#define IX_OSAL_MBUF_ALLOCATED_BUFF_LEN(m_blk_ptr) \ + (m_blk_ptr)->ix_ctrl.ix_allocated_len + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_ALLOCATED_BUFF_DATA(m_blk_ptr) + * + * @brief Return the allocated buffer pointer + */ +#define IX_OSAL_MBUF_ALLOCATED_BUFF_DATA(m_blk_ptr) \ + (m_blk_ptr)->ix_ctrl.ix_allocated_data + + + +/* Name length */ +#define IX_OSAL_MBUF_POOL_NAME_LEN 64 + + +/**************************************************** + * Macros for buffer pool management + ****************************************************/ + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_FREE_COUNT(m_pool_ptr + * + * @brief Return the total number of freed buffers left in the pool. + */ +#define IX_OSAL_MBUF_POOL_FREE_COUNT(m_pool_ptr) \ + ixOsalBuffPoolFreeCountGet(m_pool_ptr) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_SIZE_ALIGN + * + * @brief This macro takes an integer as an argument and + * rounds it up to be a multiple of the memory cache-line + * size. + * + * @param int [in] size - the size integer to be rounded up + * + * @return int - the size, rounded up to a multiple of + * the cache-line size + */ +#define IX_OSAL_MBUF_POOL_SIZE_ALIGN(size) \ + ((((size) + (IX_OSAL_CACHE_LINE_SIZE - 1)) / \ + IX_OSAL_CACHE_LINE_SIZE) * \ + IX_OSAL_CACHE_LINE_SIZE) + +/* Don't use this directly, use macro */ +PUBLIC UINT32 ixOsalBuffPoolMbufAreaSizeGet (int count); + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_MBUF_AREA_SIZE_ALIGNED + * + * @brief This macro calculates, from the number of mbufs required, the + * size of the memory area required to contain the mbuf headers for the + * buffers in the pool. The size to be used for each mbuf header is + * rounded up to a multiple of the cache-line size, to ensure + * each mbuf header aligns on a cache-line boundary. + * This macro is used by IX_OSAL_MBUF_POOL_MBUF_AREA_ALLOC() + * + * @param int [in] count - the number of buffers the pool will contain + * + * @return int - the total size required for the pool mbuf area (aligned) + */ +#define IX_OSAL_MBUF_POOL_MBUF_AREA_SIZE_ALIGNED(count) \ + ixOsalBuffPoolMbufAreaSizeGet(count) + + +/* Don't use this directly, use macro */ +PUBLIC UINT32 ixOsalBuffPoolDataAreaSizeGet (int count, int size); + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_DATA_AREA_SIZE_ALIGNED + * + * @brief This macro calculates, from the number of mbufs required and the + * size of the data portion for each mbuf, the size of the data memory area + * required. The size is adjusted to ensure alignment on cache line boundaries. + * This macro is used by IX_OSAL_MBUF_POOL_DATA_AREA_ALLOC() + * + * + * @param int [in] count - The number of mbufs in the pool. + * @param int [in] size - The desired size for each mbuf data portion. + * This size will be rounded up to a multiple of the + * cache-line size to ensure alignment on cache-line + * boundaries for each data block. + * + * @return int - the total size required for the pool data area (aligned) + */ +#define IX_OSAL_MBUF_POOL_DATA_AREA_SIZE_ALIGNED(count, size) \ + ixOsalBuffPoolDataAreaSizeGet((count), (size)) + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_MBUF_AREA_ALLOC + * + * @brief Allocates the memory area needed for the number of mbuf headers + * specified by <i>count</i>. + * This macro ensures the mbuf headers align on cache line boundaries. + * This macro evaluates to a pointer to the memory allocated. + * + * @param int [in] count - the number of mbufs the pool will contain + * @param int [out] memAreaSize - the total amount of memory allocated + * + * @return void * - a pointer to the allocated memory area + */ +#define IX_OSAL_MBUF_POOL_MBUF_AREA_ALLOC(count, memAreaSize) \ + IX_OSAL_CACHE_DMA_MALLOC((memAreaSize = \ + IX_OSAL_MBUF_POOL_MBUF_AREA_SIZE_ALIGNED(count))) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_DATA_AREA_ALLOC + * + * @brief Allocates the memory pool for the data portion of the pool mbufs. + * The number of mbufs is specified by <i>count</i>. The size of the data + * portion of each mbuf is specified by <i>size</i>. + * This macro ensures the mbufs are aligned on cache line boundaries + * This macro evaluates to a pointer to the memory allocated. + * + * @param int [in] count - the number of mbufs the pool will contain + * @param int [in] size - the desired size (in bytes) required for the data + * portion of each mbuf. Note that this size may be + * rounded up to ensure alignment on cache-line + * boundaries. + * @param int [out] memAreaSize - the total amount of memory allocated + * + * @return void * - a pointer to the allocated memory area + */ +#define IX_OSAL_MBUF_POOL_DATA_AREA_ALLOC(count, size, memAreaSize) \ + IX_OSAL_CACHE_DMA_MALLOC((memAreaSize = \ + IX_OSAL_MBUF_POOL_DATA_AREA_SIZE_ALIGNED(count,size))) + + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_INIT + * + * @brief Wrapper macro for ixOsalPoolInit() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_INIT(count, size, name) \ + ixOsalPoolInit((count), (size), (name)) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_NO_ALLOC_POOL_INIT + * + * @return Pointer to the new pool or NULL if the initialization failed. + * + * @brief Wrapper macro for ixOsalNoAllocPoolInit() + * See function description below for details. + * + */ +#define IX_OSAL_MBUF_NO_ALLOC_POOL_INIT(bufPtr, dataPtr, count, size, name) \ + ixOsalNoAllocPoolInit( (bufPtr), (dataPtr), (count), (size), (name)) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_GET + * + * @brief Wrapper macro for ixOsalMbufAlloc() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_GET(poolPtr) \ + ixOsalMbufAlloc(poolPtr) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_PUT + * + * @brief Wrapper macro for ixOsalMbufFree() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_PUT(bufPtr) \ + ixOsalMbufFree(bufPtr) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_PUT_CHAIN + * + * @brief Wrapper macro for ixOsalMbufChainFree() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_PUT_CHAIN(bufPtr) \ + ixOsalMbufChainFree(bufPtr) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_SHOW + * + * @brief Wrapper macro for ixOsalMbufPoolShow() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_SHOW(poolPtr) \ + ixOsalMbufPoolShow(poolPtr) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_MDATA_RESET + * + * @brief Wrapper macro for ixOsalMbufDataPtrReset() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_MDATA_RESET(bufPtr) \ + ixOsalMbufDataPtrReset(bufPtr) + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_MBUF_POOL_UNINIT + * + * @brief Wrapper macro for ixOsalBuffPoolUninit() + * See function description below for details. + */ +#define IX_OSAL_MBUF_POOL_UNINIT(m_pool_ptr) \ + ixOsalBuffPoolUninit(m_pool_ptr) + +/* + * Include OS-specific bufferMgt definitions + */ +#include "IxOsalOsBufferMgt.h" + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_CONVERT_OSBUF_TO_IXPBUF( osBufPtr, ixpBufPtr) + * + * @brief Convert pre-allocated os-specific buffer format to OSAL IXP_BUF (IX_OSAL_MBUF) format. + * It is users' responsibility to provide pre-allocated and valid buffer pointers. + * @param osBufPtr (in) - a pre-allocated os-specific buffer pointer. + * @param ixpBufPtr (in)- a pre-allocated OSAL IXP_BUF pointer + * @return None + */ +#define IX_OSAL_CONVERT_OSBUF_TO_IXPBUF( osBufPtr, ixpBufPtr) \ + IX_OSAL_OS_CONVERT_OSBUF_TO_IXPBUF( osBufPtr, ixpBufPtr) + + +/** + * @ingroup IxOsalBufferMgt + * + * @def IX_OSAL_CONVERT_IXPBUF_TO_OSBUF( ixpBufPtr, osBufPtr) + * + * @brief Convert pre-allocated OSAL IXP_BUF (IX_OSAL_MBUF) format to os-specific buffer pointers. + * @param ixpBufPtr (in) - OSAL IXP_BUF pointer + * @param osBufPtr (out) - os-specific buffer pointer. + * @return None + */ + +#define IX_OSAL_CONVERT_IXPBUF_TO_OSBUF( ixpBufPtr, osBufPtr) \ + IX_OSAL_OS_CONVERT_IXPBUF_TO_OSBUF( ixpBufPtr, osBufPtr) + + +PUBLIC IX_OSAL_MBUF_POOL *ixOsalPoolInit (UINT32 count, + UINT32 size, const char *name); + +PUBLIC IX_OSAL_MBUF_POOL *ixOsalNoAllocPoolInit (void *poolBufPtr, + void *poolDataPtr, + UINT32 count, + UINT32 size, + const char *name); + +PUBLIC IX_OSAL_MBUF *ixOsalMbufAlloc (IX_OSAL_MBUF_POOL * pool); + +PUBLIC IX_OSAL_MBUF *ixOsalMbufFree (IX_OSAL_MBUF * mbuf); + +PUBLIC void ixOsalMbufChainFree (IX_OSAL_MBUF * mbuf); + +PUBLIC void ixOsalMbufDataPtrReset (IX_OSAL_MBUF * mbuf); + +PUBLIC void ixOsalMbufPoolShow (IX_OSAL_MBUF_POOL * pool); + +PUBLIC IX_STATUS ixOsalBuffPoolUninit (IX_OSAL_MBUF_POOL * pool); + +PUBLIC UINT32 ixOsalBuffPoolFreeCountGet(IX_OSAL_MBUF_POOL * pool); + + +/** + * @} IxOsalBufferMgt + */ + + +#endif /* IxOsalBufferMgt_H */ |