Regarding CPPI and QMSS cleanup function.

Rohan Krishna

Prodigy 110 points

Hi,

I am facing the issue whenever I reload my program in EVM without resetting the EVM.

There is cleanup function missing i.e Channel_close, queue_close, Cppi_exit,Cppi_close.

is there ant way to detect at startup that that channel is already configured and enable so I can tear it down?

I am assuming as reconfiguration of channel isn't allowed and this may be reason behind this error.

BR,

Rohan

over 10 years ago

0 Sivaraj Kuppuraj over 10 years ago

TI__Mastermind 35645 points

Hi,

Thanks for your post.

I think, after freeing the queue through Qmss_queueClose() API, the CPPI subsystem needs to be stopped through res_mgr_stop_cppi() API and the API will de-initialize the CPPI LLD which will check for the cfg_type and will appropriately close or free the CPPI transmit or receive channel as below:

int32_t res_mgr_stop_cppi ( CPPI_CFG_TYPE cfg_type)

{

uint32_t i;

if (cfg_type == CPPI_CFG_PASS)

{

for (i = 0; i < gCppiCfg[cfg_type].num_rx_channels; i++)

Cppi_channelClose (gPassCpdmaRxChanHnd[i]);

for (i = 0; i < gCppiCfg[cfg_type].num_tx_queues; i++)

Cppi_channelClose (gPassCpdmaTxChanHnd[i]);

}

return 0;

}

I guess, the above should be used for proper CPPI/QMSS termination

Thanks & regards,

Sivaraj K

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0 Rohan Krishna over 10 years ago in reply to Sivaraj Kuppuraj

Prodigy 110 points

Thanks Sivaraj for your reply...

Processors

Processors forum

Regarding CPPI and QMSS cleanup function.