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Diffstat (limited to 'src/sbefw/core/sbeFifoMsgUtils.H')
| -rw-r--r-- | src/sbefw/core/sbeFifoMsgUtils.H | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/sbefw/core/sbeFifoMsgUtils.H b/src/sbefw/core/sbeFifoMsgUtils.H new file mode 100644 index 00000000..214b65e5 --- /dev/null +++ b/src/sbefw/core/sbeFifoMsgUtils.H @@ -0,0 +1,149 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/sbefw/core/sbeFifoMsgUtils.H $ */ +/* */ +/* OpenPOWER sbe Project */ +/* */ +/* Contributors Listed Below - COPYRIGHT 2016,2017 */ +/* */ +/* */ +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ +/* */ +/* http://www.apache.org/licenses/LICENSE-2.0 */ +/* */ +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ +/* implied. See the License for the specific language governing */ +/* permissions and limitations under the License. */ +/* */ +/* IBM_PROLOG_END_TAG */ +/* + * @file: ppe/sbe/sbefw/sbeFifoMsgUtils.H + * + * @brief This file contains the SBE FIFO Access Common Utility Functions + * + */ + +#ifndef __SBEFW_SBEFIFOMSGUTILS_H +#define __SBEFW_SBEFIFOMSGUTILS_H + +#include <stdint.h> +#include "sbeexeintf.H" + + +/**********************************************************************/ +// SBE Utilities +/**********************************************************************/ + +/** + * @brief sbeUpFifoDeq_mult : Dequeue multiple entries from upstream FIFO + * + * @param[in/out] io_len + * On input: Non-zero number of entries (excluding EOT) to dequeue. + * Ignored when i_flush == true. + * On output: Number of entries dequeued (excluding EOT). + * @param[out] o_pData Entries dequeued into the buffer + * @param[in] i_isEotExpected true / false + * true - Default case. + * Caller expects an EOT entry after io_len entries are + * dequeued. Accordingly, this function will attempt to dequeue + * the EOT entry after io_len entries are dequeued. + * false - Caller doesn't expect an EOT after io_len entries are + * dequeued. Accordingly, this function will not attempt to + * dequeue the EOT entry after io_len entries are dequeued. + * @param[in] i_flush true / false + * true - caller requested FIFO flush + * Usually caller marks this flag as true to handle error scenario. + * All entries written in the US fifo (until an EOT is encountered), + * would be dequeued and discarded (not processed). Note that io_len + * and i_isEotExpected inputs are ignored in this case. + * However, flag i_isEotExpected is always interpreted as true in + * case. + * false - Default good path. + * US Fifo entries will be dequeued and processed per inputs io_len + * and i_isEotExpected. + * + * @return Return Code SUCCESS or a secondary response code + * SBE_SEC_OPERATION_SUCCESSFUL + * SBE_SEC_FIFO_ACCESS_FAILURE + * SBE_SEC_UNEXPECTED_EOT_INSUFFICIENT_DATA + * SBE_SEC_UNEXPECTED_EOT_EXCESS_DATA + * SBE_FIFO_RESET_RECEIVED + * + */ +extern uint32_t sbeUpFifoDeq_mult (uint32_t &io_len, + uint32_t *o_pData, + const bool i_isEotExpected = true, + const bool i_flush = false); + + +/** + * @brief sbeDownFifoEnq_mult : Enqueue into downstream FIFO + * + * @param[in/out] io_len number of entries to enqueue as input, + * number of entries enqueued as output + * @param[in] i_pData buffer containting data to be enqueued + * + * @return Rc SUCCESS or a secondary response code + * SBE_SEC_OPERATION_SUCCESSFUL + * SBE_SEC_FIFO_ACCESS_FAILURE + * SBE_FIFO_RESET_RECEIVED + * + */ +extern uint32_t sbeDownFifoEnq_mult (uint32_t &io_len, + const uint32_t *i_pData) ; + +/** + * @brief sbeBuildRespHeaderStatusWordGlobal + * Builds the status header word from global variables + * + * @return Returns the status word in the response header + * + */ +extern inline uint32_t sbeBuildRespHeaderStatusWordGlobal (void); + +/** + * @brief sbeBuildRespHeaderStatusWordLocal + * Builds the status header word from passed in parameters + * + * @param[in] const uint16_t i_primStatus Primary Response Status Code + * @param[in] const uint16_t i_secStatus Secondary Response Status Code + * + * @return Returns the status word in the response header + * + */ +extern inline uint32_t sbeBuildRespHeaderStatusWordLocal ( + const uint16_t i_primStatus, + const uint16_t i_secStatus) +{ + return ( (((uint32_t)i_primStatus)<<16) | (i_secStatus) ); +} + +/** + * @brief sbeDownFifoSignalEot : Signal EOT in Downstream FIFO + * + * @return Rc from the underlying scom utility + * + * @note This is a blocking call. If FIFO is full, it will wait + * in loop ( sleep ) till the time there is some space in + * FIFO. + */ +uint32_t sbeDownFifoSignalEot (void); + +/** + * @brief sbeDsSendRespHdr : Send response header to DS FIFO + * - This also sends the FFDC if exist. + * + * @param[in] i_hdr Response Header + * @param[in] i_ffdc Pointer to FFDC object, if NULL FFDC package + * is not sent in the chip op response + * + * @return Rc from the underlying scom utility + */ +uint32_t sbeDsSendRespHdr(const sbeRespGenHdr_t &i_hdr, + sbeResponseFfdc_t *i_ffdc=NULL ); +#endif // __SBEFW_SBEFIFOMSGUTILS_H |
