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61e129885a
Signed-off-by: Marek Vasut <marex@denx.de> Cc: Bryan Hundven <bryanhundven@gmail.com> Cc: Michael Schwingen <rincewind@discworld.dascon.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: U-Boot DM <u-boot-dm@lists.denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com>
2210 lines
66 KiB
C
2210 lines
66 KiB
C
/**
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* @file IxQMgr.h
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*
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* @date 30-Oct-2001
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*
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* @brief This file contains the public API of IxQMgr component.
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*
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* Some functions contained in this module are inline to achieve better
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* data-path performance. For this to work, the function definitions are
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* contained in this header file. The "normal" use of inline functions
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* is to use the inline functions in the module in which they are
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* defined. In this case these inline functions are used in external
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* modules and therefore the use of "inline extern". What this means
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* is as follows: if a function foo is declared as "inline extern" this
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* definition is only used for inlining, in no case is the function
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* compiled on its own. If the compiler cannot inline the function it
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* becomes an external reference. Therefore in IxQMgrQAccess.c all
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* inline functions are defined without the "inline extern" specifier
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* and so define the external references. In all other source files
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* including this header file, these funtions are defined as "inline
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* extern".
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*
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*
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* @par
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* IXP400 SW Release version 2.0
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*
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* -- Copyright Notice --
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*
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* @par
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* Copyright 2001-2005, Intel Corporation.
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* All rights reserved.
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*
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* @par
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* @par
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @par
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* -- End of Copyright Notice --
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*/
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/* ------------------------------------------------------
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Doxygen group definitions
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------------------------------------------------------ */
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/**
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* @defgroup IxQMgrAPI IXP400 Queue Manager (IxQMgr) API
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*
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* @brief The public API for the IXP400 QMgr component.
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*
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* IxQMgr is a low level interface to the AHB Queue Manager
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*
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* @{
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*/
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#ifndef IXQMGR_H
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#define IXQMGR_H
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/*
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* User defined include files
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*/
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#include "IxOsal.h"
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/*
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* Define QMgr's IoMem macros, in DC mode if in LE
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* regular if in BE. (Note: For Linux LSP gold release
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* may need to adjust mode.
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*/
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#if defined (__BIG_ENDIAN)
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#define IX_QMGR_INLINE_READ_LONG IX_OSAL_READ_LONG_BE
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#define IX_QMGR_INLINE_WRITE_LONG IX_OSAL_WRITE_LONG_BE
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#else
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#define IX_QMGR_INLINE_READ_LONG IX_OSAL_READ_LONG_LE_DC
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#define IX_QMGR_INLINE_WRITE_LONG IX_OSAL_WRITE_LONG_LE_DC
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#endif
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/*
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* #defines and macros
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*/
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INLINE
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*
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* @brief Inline definition, for inlining of Queue Access functions on API
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*
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* Please read the header information in this file for more details on the
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* use of function inlining in this component.
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*
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*/
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#ifndef __wince
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#ifdef IXQMGRQACCESS_C
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/* If IXQMGRQACCESS_C is set then the IxQmgrQAccess.c is including this file
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and must instantiate a concrete definition for each inlineable API function
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whether or not that function actually gets inlined. */
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# ifdef NO_INLINE_APIS
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# undef NO_INLINE_APIS
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# endif
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# define IX_QMGR_INLINE /* Empty Define */
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#else
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# ifndef NO_INLINE_APIS
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# define IX_QMGR_INLINE IX_OSAL_INLINE_EXTERN
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# else
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# define IX_QMGR_INLINE /* Empty Define */
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# endif
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#endif
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#else /* ndef __wince */
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# ifndef NO_INLINE_APIS
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# define NO_INLINE_APIS
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# endif
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# define IX_QMGR_INLINE
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#endif
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_MAX_NUM_QUEUES
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*
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* @brief Number of queues supported by the AQM.
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*
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* This constant is used to indicate the number of AQM queues
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*
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*/
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#define IX_QMGR_MAX_NUM_QUEUES 64
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_MIN_QID
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*
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* @brief Minimum queue identifier.
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*
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* This constant is used to indicate the smallest queue identifier
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*
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*/
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#define IX_QMGR_MIN_QID IX_QMGR_QUEUE_0
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_MAX_QID
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*
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* @brief Maximum queue identifier.
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*
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* This constant is used to indicate the largest queue identifier
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*
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*/
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#define IX_QMGR_MAX_QID IX_QMGR_QUEUE_63
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_MIN_QUEUPP_QID
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*
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* @brief Minimum queue identifier for reduced functionality queues.
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*
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* This constant is used to indicate Minimum queue identifier for reduced
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* functionality queues
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*
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*/
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#define IX_QMGR_MIN_QUEUPP_QID 32
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_MAX_QNAME_LEN
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*
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* @brief Maximum queue name length.
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*
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* This constant is used to indicate the maximum null terminated string length
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* (excluding '\0') for a queue name
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*
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*/
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#define IX_QMGR_MAX_QNAME_LEN 16
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_WARNING
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*
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* @brief Warning return code.
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*
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* Execution complete, but there is a special case to handle
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*
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*/
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#define IX_QMGR_WARNING 2
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_PARAMETER_ERROR
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*
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* @brief Parameter error return code (NULL pointer etc..).
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*
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* parameter error out of range/invalid
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*
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*/
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#define IX_QMGR_PARAMETER_ERROR 3
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INVALID_Q_ENTRY_SIZE
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*
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* @brief Invalid entry size return code.
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*
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* Invalid queue entry size for a queue read/write
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*
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*/
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#define IX_QMGR_INVALID_Q_ENTRY_SIZE 4
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INVALID_Q_ID
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*
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* @brief Invalid queue identifier return code.
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*
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* Invalid queue id, not in range 0-63
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*
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*/
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#define IX_QMGR_INVALID_Q_ID 5
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INVALID_CB_ID
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*
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* @brief Invalid callback identifier return code.
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*
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* Invalid callback id
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*/
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#define IX_QMGR_INVALID_CB_ID 6
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_CB_ALREADY_SET
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*
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* @brief Callback set error return code.
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*
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* The specified callback has already been for this queue
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*
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*/
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#define IX_QMGR_CB_ALREADY_SET 7
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_NO_AVAILABLE_SRAM
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*
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* @brief Sram consumed return code.
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*
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* All AQM Sram is consumed by queue configuration
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*
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*/
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#define IX_QMGR_NO_AVAILABLE_SRAM 8
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INVALID_INT_SOURCE_ID
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*
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* @brief Invalid queue interrupt source identifier return code.
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*
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* Invalid queue interrupt source given for notification enable
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*/
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#define IX_QMGR_INVALID_INT_SOURCE_ID 9
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INVALID_QSIZE
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*
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* @brief Invalid queue size error code.
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*
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* Invalid queue size not one of 16,32, 64, 128
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*
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*
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*/
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#define IX_QMGR_INVALID_QSIZE 10
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_INVALID_Q_WM
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*
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* @brief Invalid queue watermark return code.
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*
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* Invalid queue watermark given for watermark set
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*/
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#define IX_QMGR_INVALID_Q_WM 11
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_Q_NOT_CONFIGURED
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*
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* @brief Queue not configured return code.
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*
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* Returned to the client when a function has been called on an unconfigured
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* queue
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*
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*/
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#define IX_QMGR_Q_NOT_CONFIGURED 12
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_Q_ALREADY_CONFIGURED
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*
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* @brief Queue already configured return code.
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*
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* Returned to client to indicate that a queue has already been configured
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*/
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#define IX_QMGR_Q_ALREADY_CONFIGURED 13
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_Q_UNDERFLOW
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*
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* @brief Underflow return code.
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*
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* Underflow on a queue read has occurred
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*
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*/
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#define IX_QMGR_Q_UNDERFLOW 14
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_Q_OVERFLOW
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*
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* @brief Overflow return code.
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*
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* Overflow on a queue write has occurred
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*
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*/
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#define IX_QMGR_Q_OVERFLOW 15
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_Q_INVALID_PRIORITY
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*
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* @brief Invalid priority return code.
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*
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* Invalid priority, not one of 0,1,2
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*/
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#define IX_QMGR_Q_INVALID_PRIORITY 16
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_ENTRY_INDEX_OUT_OF_BOUNDS
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*
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* @brief Entry index out of bounds return code.
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*
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* Entry index is greater than number of entries in queue.
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*/
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#define IX_QMGR_ENTRY_INDEX_OUT_OF_BOUNDS 17
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def ixQMgrDispatcherLoopRun
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*
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* @brief Map old function name ixQMgrDispatcherLoopRun ()
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* to @ref ixQMgrDispatcherLoopRunA0 ().
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*
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*/
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#define ixQMgrDispatcherLoopRun ixQMgrDispatcherLoopRunA0
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @def IX_QMGR_QUEUE
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*
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* @brief Definition of AQM queue numbers
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*
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*/
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#define IX_QMGR_QUEUE_0 (0) /**< Queue Number 0 */
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#define IX_QMGR_QUEUE_1 (1) /**< Queue Number 1 */
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#define IX_QMGR_QUEUE_2 (2) /**< Queue Number 2 */
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#define IX_QMGR_QUEUE_3 (3) /**< Queue Number 3 */
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#define IX_QMGR_QUEUE_4 (4) /**< Queue Number 4 */
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#define IX_QMGR_QUEUE_5 (5) /**< Queue Number 5 */
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#define IX_QMGR_QUEUE_6 (6) /**< Queue Number 6 */
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#define IX_QMGR_QUEUE_7 (7) /**< Queue Number 7 */
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#define IX_QMGR_QUEUE_8 (8) /**< Queue Number 8 */
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#define IX_QMGR_QUEUE_9 (9) /**< Queue Number 9 */
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#define IX_QMGR_QUEUE_10 (10) /**< Queue Number 10 */
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#define IX_QMGR_QUEUE_11 (11) /**< Queue Number 11 */
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#define IX_QMGR_QUEUE_12 (12) /**< Queue Number 12 */
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#define IX_QMGR_QUEUE_13 (13) /**< Queue Number 13 */
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#define IX_QMGR_QUEUE_14 (14) /**< Queue Number 14 */
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#define IX_QMGR_QUEUE_15 (15) /**< Queue Number 15 */
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#define IX_QMGR_QUEUE_16 (16) /**< Queue Number 16 */
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#define IX_QMGR_QUEUE_17 (17) /**< Queue Number 17 */
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#define IX_QMGR_QUEUE_18 (18) /**< Queue Number 18 */
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#define IX_QMGR_QUEUE_19 (19) /**< Queue Number 19 */
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#define IX_QMGR_QUEUE_20 (20) /**< Queue Number 20 */
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#define IX_QMGR_QUEUE_21 (21) /**< Queue Number 21 */
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#define IX_QMGR_QUEUE_22 (22) /**< Queue Number 22 */
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#define IX_QMGR_QUEUE_23 (23) /**< Queue Number 23 */
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#define IX_QMGR_QUEUE_24 (24) /**< Queue Number 24 */
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#define IX_QMGR_QUEUE_25 (25) /**< Queue Number 25 */
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#define IX_QMGR_QUEUE_26 (26) /**< Queue Number 26 */
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#define IX_QMGR_QUEUE_27 (27) /**< Queue Number 27 */
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#define IX_QMGR_QUEUE_28 (28) /**< Queue Number 28 */
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#define IX_QMGR_QUEUE_29 (29) /**< Queue Number 29 */
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#define IX_QMGR_QUEUE_30 (30) /**< Queue Number 30 */
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#define IX_QMGR_QUEUE_31 (31) /**< Queue Number 31 */
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#define IX_QMGR_QUEUE_32 (32) /**< Queue Number 32 */
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#define IX_QMGR_QUEUE_33 (33) /**< Queue Number 33 */
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#define IX_QMGR_QUEUE_34 (34) /**< Queue Number 34 */
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#define IX_QMGR_QUEUE_35 (35) /**< Queue Number 35 */
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#define IX_QMGR_QUEUE_36 (36) /**< Queue Number 36 */
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#define IX_QMGR_QUEUE_37 (37) /**< Queue Number 37 */
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#define IX_QMGR_QUEUE_38 (38) /**< Queue Number 38 */
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#define IX_QMGR_QUEUE_39 (39) /**< Queue Number 39 */
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#define IX_QMGR_QUEUE_40 (40) /**< Queue Number 40 */
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#define IX_QMGR_QUEUE_41 (41) /**< Queue Number 41 */
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#define IX_QMGR_QUEUE_42 (42) /**< Queue Number 42 */
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#define IX_QMGR_QUEUE_43 (43) /**< Queue Number 43 */
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#define IX_QMGR_QUEUE_44 (44) /**< Queue Number 44 */
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#define IX_QMGR_QUEUE_45 (45) /**< Queue Number 45 */
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#define IX_QMGR_QUEUE_46 (46) /**< Queue Number 46 */
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#define IX_QMGR_QUEUE_47 (47) /**< Queue Number 47 */
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#define IX_QMGR_QUEUE_48 (48) /**< Queue Number 48 */
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#define IX_QMGR_QUEUE_49 (49) /**< Queue Number 49 */
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#define IX_QMGR_QUEUE_50 (50) /**< Queue Number 50 */
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#define IX_QMGR_QUEUE_51 (51) /**< Queue Number 51 */
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#define IX_QMGR_QUEUE_52 (52) /**< Queue Number 52 */
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#define IX_QMGR_QUEUE_53 (53) /**< Queue Number 53 */
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#define IX_QMGR_QUEUE_54 (54) /**< Queue Number 54 */
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#define IX_QMGR_QUEUE_55 (55) /**< Queue Number 55 */
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#define IX_QMGR_QUEUE_56 (56) /**< Queue Number 56 */
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#define IX_QMGR_QUEUE_57 (57) /**< Queue Number 57 */
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#define IX_QMGR_QUEUE_58 (58) /**< Queue Number 58 */
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#define IX_QMGR_QUEUE_59 (59) /**< Queue Number 59 */
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#define IX_QMGR_QUEUE_60 (60) /**< Queue Number 60 */
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#define IX_QMGR_QUEUE_61 (61) /**< Queue Number 61 */
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#define IX_QMGR_QUEUE_62 (62) /**< Queue Number 62 */
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#define IX_QMGR_QUEUE_63 (63) /**< Queue Number 63 */
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#define IX_QMGR_QUEUE_INVALID (64) /**< AQM Queue Number Delimiter */
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/*
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* Typedefs
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*/
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/**
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* @typedef IxQMgrQId
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*
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* @ingroup IxQMgrAPI
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*
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* @brief Used in the API to identify the AQM queues.
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*
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*/
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typedef int IxQMgrQId;
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/**
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* @typedef IxQMgrQStatus
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*
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* @ingroup IxQMgrAPI
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*
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* @brief Queue status.
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*
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* A queues status is defined by its relative fullness or relative emptiness.
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* Each of the queues 0-31 have Nearly Empty, Nearly Full, Empty, Full,
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* Underflow and Overflow status flags. Queues 32-63 have just Nearly Empty and
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* Full status flags.
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* The flags bit positions are outlined below:
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*
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* OF - bit-5<br>
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* UF - bit-4<br>
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* F - bit-3<br>
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* NF - bit-2<br>
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* NE - bit-1<br>
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* E - bit-0<br>
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*
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*/
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typedef UINT32 IxQMgrQStatus;
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/**
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* @enum IxQMgrQStatusMask
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*
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* @ingroup IxQMgrAPI
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*
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* @brief Queue status mask.
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*
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* Masks for extracting the individual status flags from the IxQMgrStatus
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* word.
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*
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*/
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typedef enum
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{
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IX_QMGR_Q_STATUS_E_BIT_MASK = 0x1,
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IX_QMGR_Q_STATUS_NE_BIT_MASK = 0x2,
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IX_QMGR_Q_STATUS_NF_BIT_MASK = 0x4,
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IX_QMGR_Q_STATUS_F_BIT_MASK = 0x8,
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IX_QMGR_Q_STATUS_UF_BIT_MASK = 0x10,
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IX_QMGR_Q_STATUS_OF_BIT_MASK = 0x20
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} IxQMgrQStatusMask;
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/**
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* @enum IxQMgrSourceId
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*
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* @ingroup IxQMgrAPI
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*
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* @brief Queue interrupt source select.
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*
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* This enum defines the different source conditions on a queue that result in
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* an interrupt being fired by the AQM. Interrupt source is configurable for
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* queues 0-31 only. The interrupt source for queues 32-63 is hardwired to the
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* NE(Nearly Empty) status flag.
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*
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*/
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typedef enum
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{
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IX_QMGR_Q_SOURCE_ID_E = 0, /**< Queue Empty due to last read */
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IX_QMGR_Q_SOURCE_ID_NE, /**< Queue Nearly Empty due to last read */
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IX_QMGR_Q_SOURCE_ID_NF, /**< Queue Nearly Full due to last write */
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IX_QMGR_Q_SOURCE_ID_F, /**< Queue Full due to last write */
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IX_QMGR_Q_SOURCE_ID_NOT_E, /**< Queue Not Empty due to last write */
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IX_QMGR_Q_SOURCE_ID_NOT_NE, /**< Queue Not Nearly Empty due to last write */
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IX_QMGR_Q_SOURCE_ID_NOT_NF, /**< Queue Not Nearly Full due to last read */
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IX_QMGR_Q_SOURCE_ID_NOT_F /**< Queue Not Full due to last read */
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} IxQMgrSourceId;
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/**
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* @enum IxQMgrQEntrySizeInWords
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*
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* @ingroup IxQMgrAPI
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*
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* @brief QMgr queue entry sizes.
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*
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* The entry size of a queue specifies the size of a queues entry in words.
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*
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*/
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typedef enum
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{
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IX_QMGR_Q_ENTRY_SIZE1 = 1, /**< 1 word entry */
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IX_QMGR_Q_ENTRY_SIZE2 = 2, /**< 2 word entry */
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IX_QMGR_Q_ENTRY_SIZE4 = 4 /**< 4 word entry */
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} IxQMgrQEntrySizeInWords;
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/**
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* @enum IxQMgrQSizeInWords
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*
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* @ingroup IxQMgrAPI
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*
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* @brief QMgr queue sizes.
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*
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* These values define the allowed queue sizes for AQM queue. The sizes are
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* specified in words.
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*
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*/
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typedef enum
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{
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IX_QMGR_Q_SIZE16 = 16, /**< 16 word buffer */
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IX_QMGR_Q_SIZE32 = 32, /**< 32 word buffer */
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IX_QMGR_Q_SIZE64 = 64, /**< 64 word buffer */
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IX_QMGR_Q_SIZE128 = 128, /**< 128 word buffer */
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IX_QMGR_Q_SIZE_INVALID = 129 /**< Insure that this is greater than largest
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* queue size supported by the hardware
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*/
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} IxQMgrQSizeInWords;
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/**
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* @enum IxQMgrWMLevel
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*
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* @ingroup IxQMgrAPI
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*
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* @brief QMgr watermark levels.
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*
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* These values define the valid watermark levels(in ENTRIES) for queues. Each
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* queue 0-63 have configurable Nearly full and Nearly empty watermarks. For
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* queues 32-63 the Nearly full watermark has NO EFFECT.
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* If the Nearly full watermark is set to IX_QMGR_Q_WM_LEVEL16 this means that
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* the nearly full flag will be set by the hardware when there are >= 16 empty
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* entries in the specified queue.
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* If the Nearly empty watermark is set to IX_QMGR_Q_WM_LEVEL16 this means that
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* the Nearly empty flag will be set by the hardware when there are <= 16 full
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* entries in the specified queue.
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*/
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typedef enum
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{
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IX_QMGR_Q_WM_LEVEL0 = 0, /**< 0 entry watermark */
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IX_QMGR_Q_WM_LEVEL1 = 1, /**< 1 entry watermark */
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IX_QMGR_Q_WM_LEVEL2 = 2, /**< 2 entry watermark */
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IX_QMGR_Q_WM_LEVEL4 = 4, /**< 4 entry watermark */
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IX_QMGR_Q_WM_LEVEL8 = 8, /**< 8 entry watermark */
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IX_QMGR_Q_WM_LEVEL16 = 16, /**< 16 entry watermark */
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IX_QMGR_Q_WM_LEVEL32 = 32, /**< 32 entry watermark */
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IX_QMGR_Q_WM_LEVEL64 = 64 /**< 64 entry watermark */
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} IxQMgrWMLevel;
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/**
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* @ingroup IxQMgrAPI
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*
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* @enum IxQMgrDispatchGroup
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*
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* @brief QMgr dispatch group select identifiers.
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*
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* This enum defines the groups over which the dispatcher will process when
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* called. One of the enum values must be used as a input to
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* @a ixQMgrDispatcherLoopRunA0, @a ixQMgrDispatcherLoopRunB0
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* or @a ixQMgrDispatcherLoopRunB0LLP.
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*
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*/
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typedef enum
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{
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IX_QMGR_QUELOW_GROUP = 0, /**< Queues 0-31 */
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IX_QMGR_QUEUPP_GROUP /**< Queues 32-63 */
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} IxQMgrDispatchGroup;
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/**
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* @ingroup IxQMgrAPI
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*
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* @enum IxQMgrPriority
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*
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* @brief Dispatcher priority levels.
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*
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* This enum defines the different queue dispatch priority levels.
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* The lowest priority number (0) is the highest priority level.
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*
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*/
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typedef enum
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{
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IX_QMGR_Q_PRIORITY_0 = 0, /**< Priority level 0 */
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IX_QMGR_Q_PRIORITY_1, /**< Priority level 1 */
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IX_QMGR_Q_PRIORITY_2, /**< Priority level 2 */
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IX_QMGR_Q_PRIORITY_INVALID /**< Invalid Priority level */
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} IxQMgrPriority;
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/**
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* @ingroup IxQMgrAPI
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*
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* @enum IxQMgrType
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*
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* @brief Callback types as used with livelock prevention
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*
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* This enum defines the different callback types.
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* These types are only used when Livelock prevention is enabled.
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* The default is IX_QMGR_TYPE_REALTIME_OTHER.
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*
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*/
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typedef enum
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{
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IX_QMGR_TYPE_REALTIME_OTHER = 0, /**< Real time callbacks-always allowed run*/
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IX_QMGR_TYPE_REALTIME_PERIODIC, /**< Periodic callbacks-always allowed run */
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IX_QMGR_TYPE_REALTIME_SPORADIC /**< Sporadic callbacks-only run if no
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periodic callbacks are in progress */
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} IxQMgrType;
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/**
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* @ingroup IxQMgrAPI
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*
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* @typedef IxQMgrCallbackId
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*
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* @brief Uniquely identifies a callback function.
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*
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* A unique callback identifier associated with each callback
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* registered by clients.
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*
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*/
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typedef unsigned IxQMgrCallbackId;
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/**
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* @typedef IxQMgrCallback
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*
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* @brief QMgr notification callback type.
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*
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* This defines the interface to all client callback functions.
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*
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* @param qId @ref IxQMgrQId [in] - the queue identifier
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* @param cbId @ref IxQMgrCallbackId [in] - the callback identifier
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*/
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typedef void (*IxQMgrCallback)(IxQMgrQId qId,
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IxQMgrCallbackId cbId);
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/**
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* @ingroup IxQMgrAPI
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*
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* @typedef IxQMgrDispatcherFuncPtr
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*
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* @brief QMgr Dispatcher Loop function pointer.
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*
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* This defines the interface for QMgr Dispather functions.
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*
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* @param group @ref IxQMgrDispatchGroup [in] - the group of the
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* queue of which the dispatcher will run
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*/
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typedef void (*IxQMgrDispatcherFuncPtr)(IxQMgrDispatchGroup group);
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/*
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* Function Prototypes
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*/
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/* ------------------------------------------------------------
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Initialisation related functions
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---------------------------------------------------------- */
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @fn ixQMgrInit (void)
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*
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* @brief Initialise the QMgr.
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*
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* This function must be called before and other QMgr function. It
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* sets up internal data structures.
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*
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* @return @li IX_SUCCESS, the IxQMgr successfully initialised
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* @return @li IX_FAIL, failed to initialize the Qmgr
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*
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*/
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PUBLIC IX_STATUS
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ixQMgrInit (void);
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @fn ixQMgrUnload (void)
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*
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* @brief Uninitialise the QMgr.
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*
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* This function will perform the tasks required to unload the QMgr component
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* cleanly. This includes unmapping kernel memory.
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* This should be called before a soft reboot or unloading of a kernel module.
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*
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* @pre It should only be called if @ref ixQMgrInit has already been called.
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*
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* @post No QMgr functions should be called until ixQMgrInit is called again.
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*
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* @return @li IX_SUCCESS, the IxQMgr successfully uninitialised
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* @return @li IX_FAIL, failed to uninitialize the Qmgr
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*
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*/
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PUBLIC IX_STATUS
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ixQMgrUnload (void);
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @fn ixQMgrShow (void)
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*
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* @brief Describe queue configuration and statistics for active queues.
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*
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* This function shows active queues, their configurations and statistics.
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*
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* @return @li void
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*
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*/
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PUBLIC void
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ixQMgrShow (void);
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @fn ixQMgrQShow (IxQMgrQId qId)
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*
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* @brief Display aqueue configuration and statistics for a queue.
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*
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* This function shows queue configuration and statistics for a queue.
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*
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* @param qId @ref IxQMgrQId [in] - the queue identifier.
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*
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* @return @li IX_SUCCESS, success
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* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
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*
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*/
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PUBLIC IX_STATUS
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ixQMgrQShow (IxQMgrQId qId);
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/* ------------------------------------------------------------
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Configuration related functions
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---------------------------------------------------------- */
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/**
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*
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* @ingroup IxQMgrAPI
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*
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* @fn ixQMgrQConfig (char *qName,
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IxQMgrQId qId,
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IxQMgrQSizeInWords qSizeInWords,
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IxQMgrQEntrySizeInWords qEntrySizeInWords)
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*
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* @brief Configure an AQM queue.
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*
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* This function is called by a client to setup a queue. The size and entrySize
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* qId and qName(NULL pointer) are checked for valid values. This function must
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* be called for each queue, before any queue accesses are made and after
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* ixQMgrInit() has been called. qName is assumed to be a '\0' terminated array
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* of 16 charachters or less.
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*
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* @param *qName char [in] - is the name provided by the client and is associated
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* with a QId by the QMgr.
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* @param qId @ref IxQMgrQId [in] - the qId of this queue
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* @param qSizeInWords @ref IxQMgrQSize [in] - the size of the queue can be one of 16,32
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* 64, 128 words.
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* @param qEntrySizeInWords @ref IxQMgrQEntrySizeInWords [in] - the size of a queue entry
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* can be one of 1,2,4 words.
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*
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* @return @li IX_SUCCESS, a specified queue has been successfully configured.
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* @return @li IX_FAIL, IxQMgr has not been initialised.
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* @return @li IX_QMGR_PARAMETER_ERROR, invalid parameter(s).
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* @return @li IX_QMGR_INVALID_QSIZE, invalid queue size
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* @return @li IX_QMGR_INVALID_Q_ID, invalid queue id
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* @return @li IX_QMGR_INVALID_Q_ENTRY_SIZE, invalid queue entry size
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* @return @li IX_QMGR_Q_ALREADY_CONFIGURED, queue already configured
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*
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*/
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PUBLIC IX_STATUS
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ixQMgrQConfig (char *qName,
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IxQMgrQId qId,
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IxQMgrQSizeInWords qSizeInWords,
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IxQMgrQEntrySizeInWords qEntrySizeInWords);
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|
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/**
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* @ingroup IxQMgrAPI
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*
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* @fn ixQMgrQSizeInEntriesGet (IxQMgrQId qId,
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unsigned *qSizeInEntries)
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*
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* @brief Return the size of a queue in entries.
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*
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* This function returns the the size of the queue in entriese.
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*
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* @param qId @ref IxQMgrQId [in] - the queue identifier
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* @param *qSizeInEntries @ref IxQMgrQSize [out] - queue size in entries
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*
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* @return @li IX_SUCCESS, successfully retrieved the number of full entrie
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* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
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* @return @li IX_QMGR_PARAMETER_ERROR, invalid parameter(s).
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*
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|
*/
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PUBLIC IX_STATUS
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ixQMgrQSizeInEntriesGet (IxQMgrQId qId,
|
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unsigned *qSizeInEntries);
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|
|
/**
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|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrWatermarkSet (IxQMgrQId qId,
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|
IxQMgrWMLevel ne,
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IxQMgrWMLevel nf)
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|
*
|
|
* @brief Set the Nearly Empty and Nearly Full Watermarks fo a queue.
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|
*
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* This function is called by a client to set the watermarks NE and NF for the
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* queue specified by qId.
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* The queue must be empty at the time this function is called, it is the clients
|
|
* responsibility to ensure that the queue is empty.
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* This function will read the status of the queue before the watermarks are set
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* and again after the watermarks are set. If the status register has changed,
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* due to a queue access by an NPE for example, a warning is returned.
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|
* Queues 32-63 only support the NE flag, therefore the value of nf will be ignored
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* for these queues.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the QId of the queue.
|
|
* @param ne @ref IxQMgrWMLevel [in] - the NE(Nearly Empty) watermark for this
|
|
* queue. Valid values are 0,1,2,4,8,16,32 and
|
|
* 64 entries.
|
|
* @param nf @ref IxQMgrWMLevel [in] - the NF(Nearly Full) watermark for this queue.
|
|
* Valid values are 0,1,2,4,8,16,32 and 64
|
|
* entries.
|
|
*
|
|
* @return @li IX_SUCCESS, watermarks have been set for the queu
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
|
|
* @return @li IX_QMGR_INVALID_Q_WM, invalid watermark
|
|
* @return @li IX_QMGR_WARNING, the status register may not be constistent
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrWatermarkSet (IxQMgrQId qId,
|
|
IxQMgrWMLevel ne,
|
|
IxQMgrWMLevel nf);
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrAvailableSramAddressGet (UINT32 *address,
|
|
unsigned *sizeOfFreeSram)
|
|
*
|
|
* @brief Return the address of available AQM SRAM.
|
|
*
|
|
* This function returns the starting address in AQM SRAM not used by the
|
|
* current queue configuration and should only be called after all queues
|
|
* have been configured.
|
|
* Calling this function before all queues have been configured will will return
|
|
* the currently available SRAM. A call to configure another queue will use some
|
|
* of the available SRAM.
|
|
* The amount of SRAM available is specified in sizeOfFreeSram. The address is the
|
|
* address of the bottom of available SRAM. Available SRAM extends from address
|
|
* from address to address + sizeOfFreeSram.
|
|
*
|
|
* @param **address UINT32 [out] - the address of the available SRAM, NULL if
|
|
* none available.
|
|
* @param *sizeOfFreeSram unsigned [out]- the size in words of available SRAM
|
|
*
|
|
* @return @li IX_SUCCESS, there is available SRAM and is pointed to by address
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid parameter(s)
|
|
* @return @li IX_QMGR_NO_AVAILABLE_SRAM, all AQM SRAM is consumed by the queue
|
|
* configuration.
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrAvailableSramAddressGet (UINT32 *address,
|
|
unsigned *sizeOfFreeSram);
|
|
|
|
|
|
/* ------------------------------------------------------------
|
|
Queue access related functions
|
|
---------------------------------------------------------- */
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQReadWithChecks (IxQMgrQId qId,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief Read an entry from a queue.
|
|
*
|
|
* This function reads an entire entry from a queue returning it in entry. The
|
|
* queue configuration word is read to determine what entry size this queue is
|
|
* configured for and then the number of words specified by the entry size is
|
|
* read. entry must be a pointer to a previously allocated array of sufficient
|
|
* size to hold an entry.
|
|
*
|
|
* @note - IX_QMGR_Q_UNDERFLOW is only returned for queues 0-31 as queues 32-63
|
|
* do not have an underflow status maintained.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param *entry UINT32 [out] - pointer to the entry word(s).
|
|
*
|
|
* @return @li IX_SUCCESS, entry was successfully read.
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid paramter(s).
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
|
|
* @return @li IX_QMGR_Q_UNDERFLOW, attempt to read from an empty queue
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQReadWithChecks (IxQMgrQId qId,
|
|
UINT32 *entry);
|
|
|
|
|
|
|
|
/**
|
|
* @brief Internal structure to facilitate inlining functions in IxQMgr.h
|
|
*/
|
|
typedef struct
|
|
{
|
|
/* fields related to write functions */
|
|
UINT32 qOflowStatBitMask; /**< overflow status mask */
|
|
UINT32 qWriteCount; /**< queue write count */
|
|
|
|
/* fields related to read and write functions */
|
|
volatile UINT32 *qAccRegAddr; /**< access register */
|
|
volatile UINT32 *qUOStatRegAddr; /**< status register */
|
|
volatile UINT32 *qConfigRegAddr; /**< config register */
|
|
UINT32 qEntrySizeInWords; /**< queue entry size in words */
|
|
UINT32 qSizeInEntries; /**< queue size in entries */
|
|
|
|
/* fields related to read functions */
|
|
UINT32 qUflowStatBitMask; /**< underflow status mask */
|
|
UINT32 qReadCount; /**< queue read count */
|
|
} IxQMgrQInlinedReadWriteInfo;
|
|
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQReadMWordsMinus1 (IxQMgrQId qId,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief This function reads the remaining of the q entry
|
|
* for queues configured with many words.
|
|
* (the first word of the entry is already read
|
|
* in the inlined function and the entry pointer already
|
|
* incremented
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param *entry UINT32 [out] - pointer to the entry word(s).
|
|
*
|
|
* @return @li IX_SUCCESS, entry was successfully read.
|
|
* @return @li IX_QMGR_Q_UNDERFLOW, attempt to read from an empty queue
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQReadMWordsMinus1 (IxQMgrQId qId,
|
|
UINT32 *entry);
|
|
|
|
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQRead (IxQMgrQId qId,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief Fast read of an entry from a queue.
|
|
*
|
|
* This function is a heavily streamlined version of ixQMgrQReadWithChecks(),
|
|
* but performs essentially the same task. It reads an entire entry from a
|
|
* queue, returning it in entry which must be a pointer to a previously
|
|
* allocated array of sufficient size to hold an entry.
|
|
*
|
|
* @note - This function is inlined, to reduce unnecessary function call
|
|
* overhead. It does not perform any parameter checks, or update any statistics.
|
|
* Also, it does not check that the queue specified by qId has been configured.
|
|
* or is in range. It simply reads an entry from the queue, and checks for
|
|
* underflow.
|
|
*
|
|
* @note - IX_QMGR_Q_UNDERFLOW is only returned for queues 0-31 as queues 32-63
|
|
* do not have an underflow status maintained.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param *entry UINT32 [out] - pointer to the entry word(s).
|
|
*
|
|
* @return @li IX_SUCCESS, entry was successfully read.
|
|
* @return @li IX_QMGR_Q_UNDERFLOW, attempt to read from an empty queue
|
|
*
|
|
*/
|
|
#ifdef NO_INLINE_APIS
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQRead (IxQMgrQId qId,
|
|
UINT32 *entryPtr);
|
|
#else
|
|
extern IxQMgrQInlinedReadWriteInfo ixQMgrQInlinedReadWriteInfo[];
|
|
extern IX_STATUS ixQMgrQReadMWordsMinus1 (IxQMgrQId qId, UINT32 *entryPtr);
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQRead (IxQMgrQId qId,
|
|
UINT32 *entryPtr);
|
|
#endif
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQRead (IxQMgrQId qId,
|
|
UINT32 *entryPtr)
|
|
#ifdef NO_INLINE_APIS
|
|
;
|
|
#else
|
|
{
|
|
IxQMgrQInlinedReadWriteInfo *infoPtr = &ixQMgrQInlinedReadWriteInfo[qId];
|
|
UINT32 entry, entrySize;
|
|
|
|
/* get a new entry */
|
|
entrySize = infoPtr->qEntrySizeInWords;
|
|
entry = IX_QMGR_INLINE_READ_LONG(infoPtr->qAccRegAddr);
|
|
|
|
if (entrySize != IX_QMGR_Q_ENTRY_SIZE1)
|
|
{
|
|
*entryPtr = entry;
|
|
/* process the remaining part of the entry */
|
|
return ixQMgrQReadMWordsMinus1(qId, entryPtr);
|
|
}
|
|
|
|
/* underflow is available for lower queues only */
|
|
if (qId < IX_QMGR_MIN_QUEUPP_QID)
|
|
{
|
|
/* the counter of queue entries is decremented. In happy
|
|
* day scenario there are many entries in the queue
|
|
* and the counter does not reach zero.
|
|
*/
|
|
if (infoPtr->qReadCount-- == 0)
|
|
{
|
|
/* There is maybe no entry in the queue
|
|
* qReadCount is now negative, but will be corrected before
|
|
* the function returns.
|
|
*/
|
|
UINT32 qPtrs; /* queue internal pointers */
|
|
|
|
/* when a queue is empty, the hw guarantees to return
|
|
* a null value. If the value is not null, the queue is
|
|
* not empty.
|
|
*/
|
|
if (entry == 0)
|
|
{
|
|
/* get the queue status */
|
|
UINT32 status = IX_QMGR_INLINE_READ_LONG(infoPtr->qUOStatRegAddr);
|
|
|
|
/* check the underflow status */
|
|
if (status & infoPtr->qUflowStatBitMask)
|
|
{
|
|
/* the queue is empty
|
|
* clear the underflow status bit if it was set
|
|
*/
|
|
IX_QMGR_INLINE_WRITE_LONG(infoPtr->qUOStatRegAddr,
|
|
status & ~infoPtr->qUflowStatBitMask);
|
|
*entryPtr = 0;
|
|
infoPtr->qReadCount = 0;
|
|
return IX_QMGR_Q_UNDERFLOW;
|
|
}
|
|
}
|
|
/* store the result */
|
|
*entryPtr = entry;
|
|
|
|
/* No underflow occured : someone is filling the queue
|
|
* or the queue contains null entries.
|
|
* The current counter needs to be
|
|
* updated from the current number of entries in the queue
|
|
*/
|
|
|
|
/* get snapshot of queue pointers */
|
|
qPtrs = IX_QMGR_INLINE_READ_LONG(infoPtr->qConfigRegAddr);
|
|
|
|
/* Mod subtraction of pointers to get number of words in Q. */
|
|
qPtrs = (qPtrs - (qPtrs >> 7)) & 0x7f;
|
|
|
|
if (qPtrs == 0)
|
|
{
|
|
/* no entry in the queue */
|
|
infoPtr->qReadCount = 0;
|
|
}
|
|
else
|
|
{
|
|
/* convert the number of words inside the queue
|
|
* to a number of entries
|
|
*/
|
|
infoPtr->qReadCount = qPtrs & (infoPtr->qSizeInEntries - 1);
|
|
}
|
|
return IX_SUCCESS;
|
|
}
|
|
}
|
|
*entryPtr = entry;
|
|
return IX_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQBurstRead (IxQMgrQId qId,
|
|
UINT32 numEntries,
|
|
UINT32 *entries)
|
|
*
|
|
* @brief Read a number of entries from an AQM queue.
|
|
*
|
|
* This function will burst read a number of entries from the specified queue.
|
|
* The entry size of queue is auto-detected. The function will attempt to
|
|
* read as many entries as specified by the numEntries parameter and will
|
|
* return an UNDERFLOW if any one of the individual entry reads fail.
|
|
*
|
|
* @warning
|
|
* IX_QMGR_Q_UNDERFLOW is only returned for queues 0-31 as queues 32-63
|
|
* do not have an underflow status maintained, hence there is a potential for
|
|
* silent failure here. This function must be used with caution.
|
|
*
|
|
* @note
|
|
* This function is intended for fast draining of queues, so to make it
|
|
* as efficient as possible, it has the following features:
|
|
* - This function is inlined, to reduce unnecessary function call overhead.
|
|
* - It does not perform any parameter checks, or update any statistics.
|
|
* - It does not check that the queue specified by qId has been configured.
|
|
* - It does not check that the queue has the number of full entries that
|
|
* have been specified to be read. It will read until it finds a NULL entry or
|
|
* until the number of specified entries have been read. It always checks for
|
|
* underflow after all the reads have been performed.
|
|
* Therefore, the client should ensure before calling this function that there
|
|
* are enough entries in the queue to read. ixQMgrQNumEntriesGet() will
|
|
* provide the number of full entries in a queue.
|
|
* ixQMgrQRead() or ixQMgrQReadWithChecks(), which only reads
|
|
* a single queue entry per call, should be used instead if the user requires
|
|
* checks for UNDERFLOW after each entry read.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param numEntries unsigned [in] - the number of entries to read.
|
|
* This number should be greater than 0
|
|
* @param *entries UINT32 [out] - the word(s) read.
|
|
*
|
|
* @return @li IX_SUCCESS, entries were successfully read.
|
|
* @return @li IX_QMGR_Q_UNDERFLOW, attempt to read from an empty queue
|
|
*
|
|
*/
|
|
#ifdef NO_INLINE_APIS
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQBurstRead (IxQMgrQId qId,
|
|
UINT32 numEntries,
|
|
UINT32 *entries);
|
|
#else
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQBurstRead (IxQMgrQId qId,
|
|
UINT32 numEntries,
|
|
UINT32 *entries);
|
|
#endif /* endif NO_INLINE_APIS */
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQBurstRead (IxQMgrQId qId,
|
|
UINT32 numEntries,
|
|
UINT32 *entries)
|
|
#ifdef NO_INLINE_APIS
|
|
;
|
|
#else
|
|
{
|
|
IxQMgrQInlinedReadWriteInfo *infoPtr = &ixQMgrQInlinedReadWriteInfo[qId];
|
|
UINT32 nullCheckEntry;
|
|
|
|
if (infoPtr->qEntrySizeInWords == IX_QMGR_Q_ENTRY_SIZE1)
|
|
{
|
|
volatile UINT32 *qAccRegAddr = infoPtr->qAccRegAddr;
|
|
|
|
/* the code is optimized to take care of data dependencies:
|
|
* Durig a read, there are a few cycles needed to get the
|
|
* read complete. During these cycles, it is poossible to
|
|
* do some CPU, e.g. increment pointers and decrement
|
|
* counters.
|
|
*/
|
|
|
|
/* fetch a queue entry */
|
|
nullCheckEntry = IX_QMGR_INLINE_READ_LONG(infoPtr->qAccRegAddr);
|
|
|
|
/* iterate the specified number of queue entries */
|
|
while (--numEntries)
|
|
{
|
|
/* check the result of the previous read */
|
|
if (nullCheckEntry == 0)
|
|
{
|
|
/* if we read a NULL entry, stop. We have underflowed */
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
/* write the entry */
|
|
*entries = nullCheckEntry;
|
|
/* fetch next entry */
|
|
nullCheckEntry = IX_QMGR_INLINE_READ_LONG(qAccRegAddr);
|
|
/* increment the write address */
|
|
entries++;
|
|
}
|
|
}
|
|
/* write the pre-fetched entry */
|
|
*entries = nullCheckEntry;
|
|
}
|
|
else
|
|
{
|
|
IxQMgrQEntrySizeInWords entrySizeInWords = infoPtr->qEntrySizeInWords;
|
|
/* read the specified number of queue entries */
|
|
nullCheckEntry = 0;
|
|
while (numEntries--)
|
|
{
|
|
UINT32 i;
|
|
|
|
for (i = 0; i < (UINT32)entrySizeInWords; i++)
|
|
{
|
|
*entries = IX_QMGR_INLINE_READ_LONG(infoPtr->qAccRegAddr + i);
|
|
nullCheckEntry |= *entries++;
|
|
}
|
|
|
|
/* if we read a NULL entry, stop. We have underflowed */
|
|
if (nullCheckEntry == 0)
|
|
{
|
|
break;
|
|
}
|
|
nullCheckEntry = 0;
|
|
}
|
|
}
|
|
|
|
/* reset the current read count : next access to the read function
|
|
* will force a underflow status check
|
|
*/
|
|
infoPtr->qReadCount = 0;
|
|
|
|
/* Check if underflow occurred on the read */
|
|
if (nullCheckEntry == 0 && qId < IX_QMGR_MIN_QUEUPP_QID)
|
|
{
|
|
/* get the queue status */
|
|
UINT32 status = IX_QMGR_INLINE_READ_LONG(infoPtr->qUOStatRegAddr);
|
|
|
|
if (status & infoPtr->qUflowStatBitMask)
|
|
{
|
|
/* clear the underflow status bit if it was set */
|
|
IX_QMGR_INLINE_WRITE_LONG(infoPtr->qUOStatRegAddr,
|
|
status & ~infoPtr->qUflowStatBitMask);
|
|
return IX_QMGR_Q_UNDERFLOW;
|
|
}
|
|
}
|
|
|
|
return IX_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQPeek (IxQMgrQId qId,
|
|
unsigned int entryIndex,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief Read an entry from a queue without moving the read pointer.
|
|
*
|
|
* This function inspects an entry in a queue. The entry is inspected directly
|
|
* in AQM SRAM and is not read from queue access registers. The entry is NOT removed
|
|
* from the queue and the read/write pointers are unchanged.
|
|
* N.B: The queue should not be accessed when this function is called.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param entryIndex unsigned int [in] - index of entry in queue in the range
|
|
* [0].......[current number of entries in queue].
|
|
* @param *entry UINT32 [out] - pointer to the entry word(s).
|
|
*
|
|
* @return @li IX_SUCCESS, entry was successfully inspected.
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid paramter(s).
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId.
|
|
* @return @li IX_QMGR_ENTRY_INDEX_OUT_OF_BOUNDS, an entry does not exist at
|
|
* specified index.
|
|
* @return @li IX_FAIL, failed to inpected the queue entry.
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQPeek (IxQMgrQId qId,
|
|
unsigned int entryIndex,
|
|
UINT32 *entry);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQWriteWithChecks (IxQMgrQId qId,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief Write an entry to an AQM queue.
|
|
*
|
|
* This function will write the entry size number of words pointed to by entry to
|
|
* the queue specified by qId. The queue configuration word is read to
|
|
* determine the entry size of queue and the corresponding number of words is
|
|
* then written to the queue.
|
|
*
|
|
* @note - IX_QMGR_Q_OVERFLOW is only returned for queues 0-31 as queues 32-63
|
|
* do not have an overflow status maintained.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param *entry UINT32 [in] - the word(s) to write.
|
|
*
|
|
* @return @li IX_SUCCESS, value was successfully written.
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid paramter(s).
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
|
|
* @return @li IX_QMGR_Q_OVERFLOW, attempt to write to a full queue
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQWriteWithChecks (IxQMgrQId qId,
|
|
UINT32 *entry);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQWrite (IxQMgrQId qId,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief Fast write of an entry to a queue.
|
|
*
|
|
* This function is a heavily streamlined version of ixQMgrQWriteWithChecks(),
|
|
* but performs essentially the same task. It will write the entry size number
|
|
* of words pointed to by entry to the queue specified by qId.
|
|
*
|
|
* @note - This function is inlined, to reduce unnecessary function call
|
|
* overhead. It does not perform any parameter checks, or update any
|
|
* statistics. Also, it does not check that the queue specified by qId has
|
|
* been configured. It simply writes an entry to the queue, and checks for
|
|
* overflow.
|
|
*
|
|
* @note - IX_QMGR_Q_OVERFLOW is only returned for queues 0-31 as queues 32-63
|
|
* do not have an overflow status maintained.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param *entry UINT32 [in] - pointer to the entry word(s).
|
|
*
|
|
* @return @li IX_SUCCESS, entry was successfully read.
|
|
* @return @li IX_QMGR_Q_OVERFLOW, attempt to write to a full queue
|
|
*
|
|
*/
|
|
#ifdef NO_INLINE_APIS
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQWrite (IxQMgrQId qId,
|
|
UINT32 *entry);
|
|
#else
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQWrite (IxQMgrQId qId,
|
|
UINT32 *entry);
|
|
#endif /* NO_INLINE_APIS */
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQWrite (IxQMgrQId qId,
|
|
UINT32 *entry)
|
|
#ifdef NO_INLINE_APIS
|
|
;
|
|
#else
|
|
{
|
|
IxQMgrQInlinedReadWriteInfo *infoPtr = &ixQMgrQInlinedReadWriteInfo[qId];
|
|
UINT32 entrySize;
|
|
|
|
/* write the entry */
|
|
IX_QMGR_INLINE_WRITE_LONG(infoPtr->qAccRegAddr, *entry);
|
|
entrySize = infoPtr->qEntrySizeInWords;
|
|
|
|
if (entrySize != IX_QMGR_Q_ENTRY_SIZE1)
|
|
{
|
|
/* process the remaining part of the entry */
|
|
volatile UINT32 *qAccRegAddr = infoPtr->qAccRegAddr;
|
|
while (--entrySize)
|
|
{
|
|
++entry;
|
|
IX_QMGR_INLINE_WRITE_LONG(++qAccRegAddr, *entry);
|
|
}
|
|
entrySize = infoPtr->qEntrySizeInWords;
|
|
}
|
|
|
|
/* overflow is available for lower queues only */
|
|
if (qId < IX_QMGR_MIN_QUEUPP_QID)
|
|
{
|
|
UINT32 qSize = infoPtr->qSizeInEntries;
|
|
/* increment the current number of entries in the queue
|
|
* and check for overflow
|
|
*/
|
|
if (infoPtr->qWriteCount++ == qSize)
|
|
{
|
|
/* the queue may have overflow */
|
|
UINT32 qPtrs; /* queue internal pointers */
|
|
|
|
/* get the queue status */
|
|
UINT32 status = IX_QMGR_INLINE_READ_LONG(infoPtr->qUOStatRegAddr);
|
|
|
|
/* read the status twice because the status may
|
|
* not be immediately ready after the write operation
|
|
*/
|
|
if ((status & infoPtr->qOflowStatBitMask) ||
|
|
((status = IX_QMGR_INLINE_READ_LONG(infoPtr->qUOStatRegAddr))
|
|
& infoPtr->qOflowStatBitMask))
|
|
{
|
|
/* the queue is full, clear the overflow status
|
|
* bit if it was set
|
|
*/
|
|
IX_QMGR_INLINE_WRITE_LONG(infoPtr->qUOStatRegAddr,
|
|
status & ~infoPtr->qOflowStatBitMask);
|
|
infoPtr->qWriteCount = infoPtr->qSizeInEntries;
|
|
return IX_QMGR_Q_OVERFLOW;
|
|
}
|
|
/* No overflow occured : someone is draining the queue
|
|
* and the current counter needs to be
|
|
* updated from the current number of entries in the queue
|
|
*/
|
|
|
|
/* get q pointer snapshot */
|
|
qPtrs = IX_QMGR_INLINE_READ_LONG(infoPtr->qConfigRegAddr);
|
|
|
|
/* Mod subtraction of pointers to get number of words in Q. */
|
|
qPtrs = (qPtrs - (qPtrs >> 7)) & 0x7f;
|
|
|
|
if (qPtrs == 0)
|
|
{
|
|
/* the queue may be full at the time of the
|
|
* snapshot. Next access will check
|
|
* the overflow status again.
|
|
*/
|
|
infoPtr->qWriteCount = qSize;
|
|
}
|
|
else
|
|
{
|
|
/* convert the number of words to a number of entries */
|
|
if (entrySize == IX_QMGR_Q_ENTRY_SIZE1)
|
|
{
|
|
infoPtr->qWriteCount = qPtrs & (qSize - 1);
|
|
}
|
|
else
|
|
{
|
|
infoPtr->qWriteCount = (qPtrs / entrySize) & (qSize - 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return IX_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQBurstWrite (IxQMgrQId qId,
|
|
unsigned numEntries,
|
|
UINT32 *entries)
|
|
*
|
|
* @brief Write a number of entries to an AQM queue.
|
|
*
|
|
* This function will burst write a number of entries to the specified queue.
|
|
* The entry size of queue is auto-detected. The function will attempt to
|
|
* write as many entries as specified by the numEntries parameter and will
|
|
* return an OVERFLOW if any one of the individual entry writes fail.
|
|
*
|
|
* @warning
|
|
* IX_QMGR_Q_OVERFLOW is only returned for queues 0-31 as queues 32-63
|
|
* do not have an overflow status maintained, hence there is a potential for
|
|
* silent failure here. This function must be used with caution.
|
|
*
|
|
* @note
|
|
* This function is intended for fast population of queues, so to make it
|
|
* as efficient as possible, it has the following features:
|
|
* - This function is inlined, to reduce unnecessary function call overhead.
|
|
* - It does not perform any parameter checks, or update any statistics.
|
|
* - It does not check that the queue specified by qId has been configured.
|
|
* - It does not check that the queue has enough free space to hold the entries
|
|
* before writing, and only checks for overflow after all writes have been
|
|
* performed. Therefore, the client should ensure before calling this function
|
|
* that there is enough free space in the queue to hold the number of entries
|
|
* to be written. ixQMgrQWrite() or ixQMgrQWriteWithChecks(), which only writes
|
|
* a single queue entry per call, should be used instead if the user requires
|
|
* checks for OVERFLOW after each entry written.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param numEntries unsigned [in] - the number of entries to write.
|
|
* @param *entries UINT32 [in] - the word(s) to write.
|
|
*
|
|
* @return @li IX_SUCCESS, value was successfully written.
|
|
* @return @li IX_QMGR_Q_OVERFLOW, attempt to write to a full queue
|
|
*
|
|
*/
|
|
#ifdef NO_INLINE_APIS
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQBurstWrite (IxQMgrQId qId,
|
|
unsigned numEntries,
|
|
UINT32 *entries);
|
|
#else
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQBurstWrite (IxQMgrQId qId,
|
|
unsigned numEntries,
|
|
UINT32 *entries);
|
|
#endif /* NO_INLINE_APIS */
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQBurstWrite (IxQMgrQId qId,
|
|
unsigned numEntries,
|
|
UINT32 *entries)
|
|
#ifdef NO_INLINE_APIS
|
|
;
|
|
#else
|
|
{
|
|
IxQMgrQInlinedReadWriteInfo *infoPtr = &ixQMgrQInlinedReadWriteInfo[qId];
|
|
UINT32 status;
|
|
|
|
/* update the current write count */
|
|
infoPtr->qWriteCount += numEntries;
|
|
|
|
if (infoPtr->qEntrySizeInWords == IX_QMGR_Q_ENTRY_SIZE1)
|
|
{
|
|
volatile UINT32 *qAccRegAddr = infoPtr->qAccRegAddr;
|
|
while (numEntries--)
|
|
{
|
|
IX_QMGR_INLINE_WRITE_LONG(qAccRegAddr, *entries);
|
|
entries++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
IxQMgrQEntrySizeInWords entrySizeInWords = infoPtr->qEntrySizeInWords;
|
|
UINT32 i;
|
|
|
|
/* write each queue entry */
|
|
while (numEntries--)
|
|
{
|
|
/* write the queueEntrySize number of words for each entry */
|
|
for (i = 0; i < (UINT32)entrySizeInWords; i++)
|
|
{
|
|
IX_QMGR_INLINE_WRITE_LONG((infoPtr->qAccRegAddr + i), *entries);
|
|
entries++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* check if the write count overflows */
|
|
if (infoPtr->qWriteCount > infoPtr->qSizeInEntries)
|
|
{
|
|
/* reset the current write count */
|
|
infoPtr->qWriteCount = infoPtr->qSizeInEntries;
|
|
}
|
|
|
|
/* Check if overflow occurred on the write operation */
|
|
if (qId < IX_QMGR_MIN_QUEUPP_QID)
|
|
{
|
|
/* get the queue status */
|
|
status = IX_QMGR_INLINE_READ_LONG(infoPtr->qUOStatRegAddr);
|
|
|
|
/* read the status twice because the status may
|
|
* not be ready at the time of the write
|
|
*/
|
|
if ((status & infoPtr->qOflowStatBitMask) ||
|
|
((status = IX_QMGR_INLINE_READ_LONG(infoPtr->qUOStatRegAddr))
|
|
& infoPtr->qOflowStatBitMask))
|
|
{
|
|
/* clear the underflow status bit if it was set */
|
|
IX_QMGR_INLINE_WRITE_LONG(infoPtr->qUOStatRegAddr,
|
|
status & ~infoPtr->qOflowStatBitMask);
|
|
return IX_QMGR_Q_OVERFLOW;
|
|
}
|
|
}
|
|
|
|
return IX_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQPoke (IxQMgrQId qId,
|
|
unsigned int entryIndex,
|
|
UINT32 *entry)
|
|
*
|
|
* @brief Write an entry to a queue without moving the write pointer.
|
|
*
|
|
* This function modifies an entry in a queue. The entry is modified directly
|
|
* in AQM SRAM and not using the queue access registers. The entry is NOT added to the
|
|
* queue and the read/write pointers are unchanged.
|
|
* N.B: The queue should not be accessed when this function is called.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param entryIndex unsigned int [in] - index of entry in queue in the range
|
|
* [0].......[current number of entries in queue].
|
|
* @param *entry UINT32 [in] - pointer to the entry word(s).
|
|
*
|
|
* @return @li IX_SUCCESS, entry was successfully modified.
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid paramter(s).
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId.
|
|
* @return @li IX_QMGR_ENTRY_INDEX_OUT_OF_BOUNDS, an entry does not exist at
|
|
* specified index.
|
|
* @return @li IX_FAIL, failed to modify the queue entry.
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQPoke (IxQMgrQId qId,
|
|
unsigned int entryIndex,
|
|
UINT32 *entry);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQNumEntriesGet (IxQMgrQId qId,
|
|
unsigned *numEntries)
|
|
*
|
|
* @brief Get a snapshot of the number of entries in a queue.
|
|
*
|
|
* This function gets the number of entries in a queue.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] qId - the queue idenfifier
|
|
* @param *numEntries unsigned [out] - the number of entries in a queue
|
|
*
|
|
* @return @li IX_SUCCESS, got the number of entries for the queue
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid paramter(s).
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, the specified qId has not been configured
|
|
* @return @li IX_QMGR_WARNING, could not determine num entries at this time
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQNumEntriesGet (IxQMgrQId qId,
|
|
unsigned *numEntries);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQStatusGetWithChecks (IxQMgrQId qId,
|
|
IxQMgrQStatus *qStatus)
|
|
*
|
|
* @brief Get a queues status.
|
|
*
|
|
* This function reads the specified queues status. A queues status is defined
|
|
* by its status flags. For queues 0-31 these flags are E,NE,NF,F. For
|
|
* queues 32-63 these flags are NE and F.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param &qStatus @ref IxQMgrQStatus [out] - the status of the specified queue.
|
|
*
|
|
* @return @li IX_SUCCESS, queue status was successfully read.
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, the specified qId has not been configured
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid paramter.
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQStatusGetWithChecks (IxQMgrQId qId,
|
|
IxQMgrQStatus *qStatus);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrQStatusGet (IxQMgrQId qId,
|
|
IxQMgrQStatus *qStatus)
|
|
*
|
|
* @brief Fast get of a queue's status.
|
|
*
|
|
* This function is a streamlined version of ixQMgrQStatusGetWithChecks(), but
|
|
* performs essentially the same task. It reads the specified queue's status.
|
|
* A queues status is defined by its status flags. For queues 0-31 these flags
|
|
* are E,NE,NF,F. For queues 32-63 these flags are NE and F.
|
|
*
|
|
* @note - This function is inlined, to reduce unnecessary function call
|
|
* overhead. It does not perform any parameter checks, or update any
|
|
* statistics. Also, it does not check that the queue specified by qId has
|
|
* been configured. It simply reads the specified queue's status.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier.
|
|
* @param *qStatus @ref IxQMgrQStatus [out] - the status of the specified queue.
|
|
*
|
|
* @return @li void.
|
|
*
|
|
*/
|
|
|
|
#ifdef NO_INLINE_APIS
|
|
PUBLIC IX_STATUS
|
|
ixQMgrQStatusGet (IxQMgrQId qId,
|
|
IxQMgrQStatus *qStatus);
|
|
#else
|
|
extern UINT32 ixQMgrAqmIfQueLowStatRegAddr[];
|
|
extern UINT32 ixQMgrAqmIfQueLowStatBitsOffset[];
|
|
extern UINT32 ixQMgrAqmIfQueLowStatBitsMask;
|
|
extern UINT32 ixQMgrAqmIfQueUppStat0RegAddr;
|
|
extern UINT32 ixQMgrAqmIfQueUppStat1RegAddr;
|
|
extern UINT32 ixQMgrAqmIfQueUppStat0BitMask[];
|
|
extern UINT32 ixQMgrAqmIfQueUppStat1BitMask[];
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQStatusGet (IxQMgrQId qId,
|
|
IxQMgrQStatus *qStatus);
|
|
#endif /* endif NO_INLINE_APIS */
|
|
|
|
IX_QMGR_INLINE PUBLIC IX_STATUS
|
|
ixQMgrQStatusGet (IxQMgrQId qId,
|
|
IxQMgrQStatus *qStatus)
|
|
#ifdef NO_INLINE_APIS
|
|
;
|
|
#else
|
|
{
|
|
/* read the status of a queue in the range 0-31 */
|
|
if (qId < IX_QMGR_MIN_QUEUPP_QID)
|
|
{
|
|
volatile UINT32 *lowStatRegAddr = (UINT32*)ixQMgrAqmIfQueLowStatRegAddr[qId];
|
|
|
|
UINT32 lowStatBitsOffset = ixQMgrAqmIfQueLowStatBitsOffset[qId];
|
|
UINT32 lowStatBitsMask = ixQMgrAqmIfQueLowStatBitsMask;
|
|
|
|
/* read the status register for this queue */
|
|
*qStatus = IX_QMGR_INLINE_READ_LONG(lowStatRegAddr);
|
|
|
|
/* mask out the status bits relevant only to this queue */
|
|
*qStatus = (*qStatus >> lowStatBitsOffset) & lowStatBitsMask;
|
|
|
|
}
|
|
else /* read status of a queue in the range 32-63 */
|
|
{
|
|
|
|
volatile UINT32 *qNearEmptyStatRegAddr = (UINT32*)ixQMgrAqmIfQueUppStat0RegAddr;
|
|
volatile UINT32 *qFullStatRegAddr = (UINT32*)ixQMgrAqmIfQueUppStat1RegAddr;
|
|
int maskIndex = qId - IX_QMGR_MIN_QUEUPP_QID;
|
|
UINT32 qNearEmptyStatBitMask = ixQMgrAqmIfQueUppStat0BitMask[maskIndex];
|
|
UINT32 qFullStatBitMask = ixQMgrAqmIfQueUppStat1BitMask[maskIndex];
|
|
|
|
/* Reset the status bits */
|
|
*qStatus = 0;
|
|
|
|
/* Check if the queue is nearly empty */
|
|
if (IX_QMGR_INLINE_READ_LONG(qNearEmptyStatRegAddr) & qNearEmptyStatBitMask)
|
|
{
|
|
*qStatus |= IX_QMGR_Q_STATUS_NE_BIT_MASK;
|
|
}
|
|
|
|
/* Check if the queue is full */
|
|
if (IX_QMGR_INLINE_READ_LONG(qFullStatRegAddr) & qFullStatBitMask)
|
|
{
|
|
*qStatus |= IX_QMGR_Q_STATUS_F_BIT_MASK;
|
|
}
|
|
}
|
|
return IX_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
/* ------------------------------------------------------------
|
|
Queue dispatch related functions
|
|
---------------------------------------------------------- */
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrDispatcherPrioritySet (IxQMgrQId qId,
|
|
IxQMgrPriority priority)
|
|
*
|
|
* @brief Set the dispatch priority of a queue.
|
|
*
|
|
* This function is called to set the dispatch priority of queue. The effect of
|
|
* this function is to add a priority change request to a queue. This queue is
|
|
* serviced by @a ixQMgrDispatcherLoopRunA0, @a ixQMgrDispatcherLoopRunB0 or
|
|
* @a ixQMgrDispatcherLoopRunB0LLP.
|
|
*
|
|
* This function is re-entrant. and can be used from an interrupt context
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier
|
|
* @param priority @ref IxQMgrPriority [in] - the new queue dispatch priority
|
|
*
|
|
* @return @li IX_SUCCESS, priority change request is queued
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, the specified qId has not been configured
|
|
* @return @li IX_QMGR_Q_INVALID_PRIORITY, specified priority is invalid
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrDispatcherPrioritySet (IxQMgrQId qId,
|
|
IxQMgrPriority priority);
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrNotificationEnable (IxQMgrQId qId,
|
|
IxQMgrSourceId sourceId)
|
|
*
|
|
* @brief Enable notification on a queue for a specified queue source flag.
|
|
*
|
|
* This function is called by a client of the QMgr to enable notifications on a
|
|
* specified condition.
|
|
* If the condition for the notification is set after the client has called this
|
|
* function but before the function has enabled the interrupt source, then the
|
|
* notification will not occur.
|
|
* For queues 32-63 the notification source is fixed to the NE(Nearly Empty) flag
|
|
* and cannot be changed so the sourceId parameter is ignored for these queues.
|
|
* The status register is read before the notofication is enabled and is read again
|
|
* after the notification has been enabled, if they differ then the warning status
|
|
* is returned.
|
|
*
|
|
* This function is re-entrant. and can be used from an interrupt context
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier
|
|
* @param sourceId @ref IxQMgrSourceId [in] - the interrupt src condition identifier
|
|
*
|
|
* @return @li IX_SUCCESS, the interrupt has been enabled for the specified source
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, the specified qId has not been configured
|
|
* @return @li IX_QMGR_INVALID_INT_SOURCE_ID, interrupt source invalid for this queue
|
|
* @return @li IX_QMGR_WARNING, the status register may not be constistent
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrNotificationEnable (IxQMgrQId qId,
|
|
IxQMgrSourceId sourceId);
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrNotificationDisable (IxQMgrQId qId)
|
|
*
|
|
* @brief Disable notifications on a queue.
|
|
*
|
|
* This function is called to disable notifications on a specified queue.
|
|
*
|
|
* This function is re-entrant. and can be used from an interrupt context
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier
|
|
*
|
|
* @return @li IX_SUCCESS, the interrupt has been disabled
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, the specified qId has not been configured
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrNotificationDisable (IxQMgrQId qId);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrDispatcherLoopRunA0 (IxQMgrDispatchGroup group)
|
|
*
|
|
* @brief Run the callback dispatcher.
|
|
*
|
|
* This function runs the dispatcher for a group of queues.
|
|
* Callbacks are made for interrupts that have occurred on queues within
|
|
* the group that have registered callbacks. The order in which queues are
|
|
* serviced depends on the queue priorities set by the client.
|
|
* This function may be called from interrupt or task context.
|
|
* For optimisations that were introduced in IXP42X B0 and supported IXP46X
|
|
* the @a ixQMgrDispatcherLoopRunB0, or @a ixQMgrDispatcherLoopRunB0LLP
|
|
* should be used.
|
|
*
|
|
* This function is not re-entrant.
|
|
*
|
|
* @param group @ref IxQMgrDispatchGroup [in] - the group of queues over which the
|
|
* dispatcher will run
|
|
*
|
|
* @return @li void
|
|
*
|
|
* @note This function may be called from interrupt or task context.
|
|
* However, for optimal performance the choice of context depends also on the
|
|
* operating system used.
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrDispatcherLoopRunA0 (IxQMgrDispatchGroup group);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrDispatcherLoopRunB0 (IxQMgrDispatchGroup group)
|
|
*
|
|
* @brief Run the callback dispatcher.
|
|
*
|
|
* The enhanced version of @a ixQMgrDispatcherLoopRunA0 that is optimised for
|
|
* features introduced in IXP42X B0 silicon and supported on IXP46X.
|
|
* This is the default dispatcher for IXP42X B0 and IXP46X silicon.
|
|
* The function runs the dispatcher for a group of queues.
|
|
* Callbacks are made for interrupts that have occurred on queues within
|
|
* the group that have registered callbacks. The order in which queues are
|
|
* serviced depends on the queue priorities set by the client.
|
|
* This function may be called from interrupt or task context.
|
|
*
|
|
* This function is not re-entrant.
|
|
*
|
|
* @param group @ref IxQMgrDispatchGroup [in] - the group of queues over which the
|
|
* dispatcher will run
|
|
*
|
|
* @return @li void
|
|
*
|
|
*
|
|
* @note This function may be called from interrupt or task context.
|
|
* However, for optimal performance the choice of context depends also on the
|
|
* operating system used.
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrDispatcherLoopRunB0 (IxQMgrDispatchGroup group);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrDispatcherLoopRunB0LLP (IxQMgrDispatchGroup group)
|
|
*
|
|
* @brief Run the callback dispatcher.
|
|
*
|
|
* This is a version of the optimised dispatcher for IXP42X B0 and IXP46X,
|
|
* @a ixQMgrDispatcherLoopRunB0, with added support for livelock prevention.
|
|
* This dispatcher will only be used for the IXP42X B0 or IXP46X silicon if
|
|
* feature control indicates that IX_FEATURECTRL_ORIGB0_DISPATCHER is set to
|
|
* IX_FEATURE_CTRL_SWCONFIG_DISABLED. Otherwise the @a ixQMgrDispatcherLoopRunB0
|
|
* dispatcher will be used (Default).
|
|
*
|
|
* When this dispatcher notifies for a queue that is type
|
|
* IX_QMGR_TYPE_REALTIME_PERIODIC, notifications for queues that are set
|
|
* as type IX_QMGR_REALTIME_SPORADIC are not processed and disabled.
|
|
* This helps prevent any tasks resulting from the notification of the
|
|
* IX_QMGR_TYPE_REALTIME_PERIODIC type queue to being subject to livelock.
|
|
* The function runs the dispatcher for a group of queues.
|
|
* Callbacks are made for interrupts that have occurred on queues within
|
|
* the group that have registered callbacks. The order in which queues are
|
|
* serviced depends on their type along with the queue priorities set by the
|
|
* client. This function may be called from interrupt or task context.
|
|
*
|
|
* This function is not re-entrant.
|
|
*
|
|
* @param group @ref IxQMgrDispatchGroup [in] - the group of queues over which
|
|
* the dispatcher will run
|
|
*
|
|
* @return @li void
|
|
*
|
|
* @note This function may be called from interrupt or task context.
|
|
* However, for optimal performance the choice of context depends also on the
|
|
* operating system used.
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrDispatcherLoopRunB0LLP (IxQMgrDispatchGroup group);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrNotificationCallbackSet (IxQMgrQId qId,
|
|
IxQMgrCallback callback,
|
|
IxQMgrCallbackId callbackId)
|
|
*
|
|
* @brief Set the notification callback for a queue.
|
|
*
|
|
* This function sets the callback for the specified queue. This callback will
|
|
* be called by the dispatcher, and may be called in the context of a interrupt
|
|
* If callback has a value of NULL the previously registered callback, if one
|
|
* exists will be unregistered.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue idenfifier
|
|
* @param callback @ref IxQMgrCallback [in] - the callback registered for this queue
|
|
* @param callbackId @ref IxQMgrCallbackId [in] - the callback identifier
|
|
*
|
|
* @return @li IX_SUCCESS, the callback for the specified queue has been set
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, the specified qId has not been configured
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrNotificationCallbackSet (IxQMgrQId qId,
|
|
IxQMgrCallback callback,
|
|
IxQMgrCallbackId callbackId);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrDispatcherLoopGet (IxQMgrDispatcherFuncPtr *qDispatcherFuncPtr)
|
|
*
|
|
* @brief Get QMgr DispatcherLoopRun for respective silicon device
|
|
*
|
|
* This function gets a function pointer to ixQMgrDispatcherLoopRunA0() for IXP42X A0
|
|
* Silicon. If the IXP42X B0 or 46X Silicon, the default is the ixQMgrDispatcherLoopRunB0()
|
|
* function, however if live lock prevention is enabled a function pointer to
|
|
* ixQMgrDispatcherLoopRunB0LLP() is given.
|
|
*
|
|
* @param *qDispatchFuncPtr @ref IxQMgrDispatcherFuncPtr [out] -
|
|
* the function pointer of QMgr Dispatcher
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrDispatcherLoopGet (IxQMgrDispatcherFuncPtr *qDispatcherFuncPtr);
|
|
|
|
/**
|
|
*
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrStickyInterruptRegEnable(void)
|
|
*
|
|
* @brief Enable AQM's sticky interrupt register behaviour only available
|
|
* on B0 Silicon.
|
|
*
|
|
* When AQM's sticky interrupt register is enabled, interrupt register bit will
|
|
* only be cleared when a '1' is written to interrupt register bit and the
|
|
* interrupting condition is satisfied, i.e.queue condition does not exist.
|
|
*
|
|
* @note This function must be called before any queue is enabled.
|
|
* Calling this function after queue is enabled will cause
|
|
* undefined results.
|
|
*
|
|
* @return none
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrStickyInterruptRegEnable(void);
|
|
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrCallbackTypeSet(IxQMgrQId qId,
|
|
IxQMgrType type)
|
|
*
|
|
* @brief Set the Callback Type of a queue.
|
|
*
|
|
* This function is only used for live lock prevention.
|
|
* This function allows the callback type of a queue to be set. The default for
|
|
* all queues is IX_QMGR_TYPE_REALTIME_OTHER. Setting the type to
|
|
* IX_QMGR_TYPE_REALTIME_SPORADIC means that this queue will have it's
|
|
* notifications disabled while there is a task associated with a
|
|
* queue of type IX_QMGR_TYPE_REALTIME_PERIODIC running. As live lock
|
|
* prevention operates on lower queues, this function should
|
|
* be called for lower queues only.
|
|
* This function is not re-entrant.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier
|
|
* @param type @ref IxQMgrType [in] - the type of callback
|
|
*
|
|
* @return @li IX_SUCCESS, successfully set callback type for the queue entry
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid parameter(s).
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrCallbackTypeSet(IxQMgrQId qId,
|
|
IxQMgrType type);
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrCallbackTypeGet(IxQMgrQId qId,
|
|
IxQMgrType *type)
|
|
*
|
|
* @brief Get the Callback Type of a queue.
|
|
*
|
|
* This function allows the callback type of a queue to be got. As live lock
|
|
* prevention operates on lower queues, this function should
|
|
* be called for lower queues only.
|
|
* This function is re-entrant.
|
|
*
|
|
* @param qId @ref IxQMgrQId [in] - the queue identifier
|
|
* @param *type @ref IxQMgrType [out] - the type of callback
|
|
*
|
|
* @return @li IX_SUCCESS, successfully set callback type for the queue entry
|
|
* @return @li IX_QMGR_Q_NOT_CONFIGURED, queue not configured for this QId
|
|
* @return @li IX_QMGR_PARAMETER_ERROR, invalid parameter(s)
|
|
*
|
|
*/
|
|
PUBLIC IX_STATUS
|
|
ixQMgrCallbackTypeGet(IxQMgrQId qId,
|
|
IxQMgrType *type);
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrPeriodicDone(void)
|
|
*
|
|
* @brief Indicate that the Periodic task is completed for LLP
|
|
*
|
|
* This function is used as part of live lock prevention.
|
|
* A periodic task is a task that results from a queue that
|
|
* is set as type IX_QMGR_TYPE_REALTIME_PERIODIC. This function
|
|
* should be called to indicate to the dispatcher that the
|
|
* the periodic task is completed. This ensures that the notifications
|
|
* for queues set as type sporadic queues are re-enabled.
|
|
* This function is re-entrant.
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrPeriodicDone(void);
|
|
|
|
|
|
/**
|
|
* @ingroup IxQMgrAPI
|
|
*
|
|
* @fn ixQMgrLLPShow(int resetStats)
|
|
*
|
|
* @brief Print out the live lock prevention statistics when in debug mode.
|
|
*
|
|
* This function prints out statistics related to the livelock. These
|
|
* statistics are only collected in debug mode.
|
|
* This function is not re-entrant.
|
|
*
|
|
* @param resetStats @ref int [in] - if set the the stats are reset.
|
|
*
|
|
*/
|
|
PUBLIC void
|
|
ixQMgrLLPShow(int resetStats);
|
|
|
|
|
|
#endif /* IXQMGR_H */
|
|
|
|
/**
|
|
* @} defgroup IxQMgrAPI
|
|
*/
|
|
|
|
|