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sitara_depot/components/free_rtos/ethernet/eth_rx_flow.cpp

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/*
* eth_rx_flow.cpp
*
* Created on: 7 <20><><EFBFBD>. 2023 <20>.
* Author: sychev
*/
#include "free_rtos/ethernet/eth_rx_flow.hpp"
#include <networking/enet/core/include/core/enet_soc.h>
#include <networking/enet/core/src/dma/udma/enet_udma_priv.h> // Yes, it is forbidden !
#include <networking/enet/utils/include/enet_board.h>
#include <networking/enet/utils/include/enet_appmemutils.h>
#include <networking/enet/utils/include/enet_appmemutils_cfg.h>
#include <networking/enet/utils/include/enet_apputils.h>
/*----------------------------------------------------------------------*/
/**
* <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sysconfig.
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD> <build_name>/syscfg
*/
#include "ti_enet_config.h"
/*----------------------------------------------------------------------*/
using namespace free_rtos;
/**
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
void free_rtos::rxIsrHandler(void *appData)
{
EthRxFlow * rx_flow = (EthRxFlow *)appData;
if(rx_flow == nullptr) {
return;
}
rx_flow->sem_[EthRxFlow::e_signalRxPkt].post();
}
void free_rtos::rxTaskHandler(void *appData)
{
EthRxFlow * rx_flow = (EthRxFlow *)appData;
if (rx_flow != nullptr) {
rx_flow->rxProcessPktTask();
}
}
free_rtos::EthRxFlow::EthRxFlow(TEthFrameMacAddr& mac_addr, EthStackIface& eth_stack) :
mac_addr_{mac_addr},
eth_stack_{eth_stack},
passive_mode_{false}
{
EnetQueue_initQ(&rx_free_pktq_);
}
void free_rtos::EthRxFlow::initRxFreePktQ(void * appPriv, EnetDma_PktQ * p_packet_queue, uint32_t qCount)
{
EnetDma_PktQ rxReadyQ;
EnetDma_Pkt *pPktInfo;
uint32_t i;
int32_t status;
for (i = 0U; i < qCount; ++i)
{
pPktInfo = EnetMem_allocEthPkt(appPriv,
ENET_MEM_LARGE_POOL_PKT_SIZE,
ENETDMA_CACHELINE_ALIGNMENT);
EnetAppUtils_assert(pPktInfo != NULL);
ENET_UTILS_SET_PKT_APP_STATE(&pPktInfo->pktState, ENET_PKTSTATE_APP_WITH_FREEQ);
EnetQueue_enq(p_packet_queue, &pPktInfo->node);
}
/* Retrieve any packets which are ready */
EnetQueue_initQ(&rxReadyQ);
status = EnetDma_retrieveRxPktQ(dma_handle_, &rxReadyQ);
EnetAppUtils_assert(status == ENET_SOK);
/* There should not be any packet with DMA during init */
EnetAppUtils_assert(EnetQueue_getQCount(&rxReadyQ) == 0U);
}
void free_rtos::EthRxFlow::submitFreeRxPkts(uint32_t qCount)
{
EnetDma_PktQ rxSubmitQ;
EnetDma_Pkt* rxPktInfo = (EnetDma_Pkt *)EnetQueue_deq(&rx_free_pktq_);
int32_t status;
EnetQueue_initQ(&rxSubmitQ);
while((qCount > 0) && (rxPktInfo != nullptr))
{
EnetQueue_enq(&rxSubmitQ, &rxPktInfo->node);
rxPktInfo = (EnetDma_Pkt *)EnetQueue_deq(&rx_free_pktq_);
qCount--;
}
EnetAppUtils_validatePacketState(&rxSubmitQ,
ENET_PKTSTATE_APP_WITH_FREEQ,
ENET_PKTSTATE_APP_WITH_DRIVER);
status = EnetDma_submitRxPktQ(dma_handle_, &rxSubmitQ);
EnetAppUtils_assert(status == ENET_SOK);
qCount = EnetQueue_getQCount(&rxSubmitQ);
/* Assert here, as during init, the number of DMA descriptors should be equal to
* the number of free Ethernet buffers available with app */
EnetAppUtils_assert(qCount == 0U);
}
void free_rtos::EthRxFlow::rxProcessPktTask()
{
EnetDma_Pkt* rxPktInfo; /// <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
EnetDma_PktQ rxReadyQ;
uint32_t readyQCount;
int32_t status;
while(1)
{
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
status = sem_[e_signalRxPkt].pend();
do {
EnetDma_PktQ rxFreeQ;
EnetQueue_initQ(&rxFreeQ);
status = EnetDma_retrieveRxPktQ(dma_handle_, &rxReadyQ);
EnetAppUtils_assert(status == ENET_SOK);
readyQCount = EnetQueue_getQCount(&rxReadyQ);
EnetAppUtils_assert(readyQCount != 0);
// Reload DMA with a new rx free queue as fast as possible
submitFreeRxPkts(readyQCount);
rxPktInfo = (EnetDma_Pkt *)EnetQueue_deq(&rxReadyQ);
while(rxPktInfo != nullptr) {
//if (!passive_mode_) {
for (int j = 0 ; j < rxPktInfo->sgList.numScatterSegments; ++j)
{
eth_stack_.rx_handler(rxPktInfo->sgList.list[j].bufPtr, rxPktInfo->sgList.list[j].segmentFilledLen);
}
//}
EnetQueue_enq(&rxFreeQ, &rxPktInfo->node);
rxPktInfo = (EnetDma_Pkt *)EnetQueue_deq(&rxReadyQ);
}
EnetAppUtils_validatePacketState(&rxFreeQ,
ENET_PKTSTATE_APP_WITH_DRIVER,
ENET_PKTSTATE_APP_WITH_FREEQ);
EnetQueue_append(&rx_free_pktq_, &rxFreeQ);
} while(readyQCount > 0);
}
}
bool free_rtos::EthRxFlow::open(uint32_t id, int32_t enetDmaRxChId, UBaseType_t task_priority, UBaseType_t task_stack_size)
{
EnetApp_GetDmaHandleInArgs rxInArgs;
EnetApp_GetRxDmaHandleOutArgs rxChInfo;
EnetAppUtils_print("rx_flow %u: opening flow...\r\n", id);
if (open_) {
EnetAppUtils_print("rx_flow %u: rx flow is already open. Do nothing.\r\n", id_);
return true;
}
if (!rx_task.Create("rx_task", task_priority, rxTaskHandler, this, task_stack_size))
{
EnetAppUtils_print("rx_flow %u: failed to create rx task.\r\n", id_);
return false;
}
id_ = id;
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
rxInArgs.notifyCb = rxIsrHandler; /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
rxInArgs.cbArg = this; /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
EnetApp_getRxDmaHandle(enetDmaRxChId, &rxInArgs, &rxChInfo);
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
rx_start_flow_idx_ = rxChInfo.rxFlowStartIdx;
rx_flow_idx_ = rxChInfo.rxFlowIdx;
dma_handle_ = rxChInfo.hRxCh;
if (rxChInfo.macAddressValid)
{
EnetUtils_copyMacAddr(mac_addr_.bytes, rxChInfo.macAddr);
mac_addr_.addr&= ETH_FRAME_MAC_ADDR_MASK;
eth_stack_.set_mac_address(mac_addr_.addr);
}
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
EnetAppUtils_assert(rxChInfo.useGlobalEvt == true);
EnetAppUtils_assert(rxChInfo.sizeThreshEn == 0U);
EnetAppUtils_assert(rxChInfo.maxNumRxPkts >= (ENET_SYSCFG_TOTAL_NUM_RX_PKT/2U));
EnetAppUtils_assert(rxChInfo.chIdx == id_);
EnetAppUtils_assert(rxChInfo.useDefaultFlow == true);
if (dma_handle_ == nullptr)
{
EnetAppUtils_print("rx_flow %u: failed to open rx dma flow\r\n", id_);
EnetAppUtils_assert(dma_handle_ != nullptr);
return false;
}
/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
initRxFreePktQ(this, &rx_free_pktq_, ENET_SYSCFG_TOTAL_NUM_RX_PKT/2);
submitFreeRxPkts(ENET_SYSCFG_TOTAL_NUM_RX_PKT/4);
open_ = true;
EnetAppUtils_print("rx_flow %u: rx flow open successfully\r\n", id);
return true;
}
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