HI Josh,
Glad you got past that.
The ACI doc is indeed highest priority for an update, especially the xml
apps.
But it may not get attention for another month. We'll see if we can
squeeze that one in, since it would save time
in answering questions etc. Another one in need of an update is the
"generic authoring model" base document,
which does not fully describe all the currently supported data types for
properties and protocols.
Jim
On 5/22/12 9:55 PM, Sutton, Joshua (Contractor) wrote:
UNCLASSIFIED
Thanks Jim,
That fixed it.
Are there any updates scheduled on the documentation for opencpi?
In particular the Application Control Interface Specification?
Cheers,
Josh
|Date: Mon, 21 May 2012 16:19:34 -0400
|From: James Kulp<[email protected]>
|To: [email protected]
|
|Hi Josh,
|
|External port buffer counts can be larger, but inter-worker buffer
counts were limited to that constant a while ago for a |now-obsolete
reason. For the moment you can try increasing MAX_BUFFERS in:
|
|core/dataplane/transport/impl/include/OcpiTransportConstants.h
|
|But we'll try to put it back to a variable allocation soon.
|
|Jim
|
On 5/21/12 1:15 AM, Sutton, Joshua (Contractor) wrote:
*UNCLASSIFIED*
Hi,
There appears to be a limit of 20 buffers that can be assigned to a
port.
Eg if I change the bias.xml file in components/bias.rcc/ to the
following:
<RccImplementation>
<xi:include href="bias_spec.xml"/>
<Port Name="in" MinBuffers="21"/>
</RccImplementation>
Then the bias_xml test in ocpi/examples/bias_xml crashes out with a
segmentation fault.
If the value MinBuffers is set to 20, then the example runs ok.
Is there a reason for the limit, or is this just an arbitrary maximum
setting? I've tried through lookingthe code, but the reason for the
limit isn't clear.
The last few frames of the backtrace are:
OCPI::DataTransport::Circuit::getOutputPortSet (this=0x0) at
../../impl/include/OcpiCircuit.h:469
OCPI::DataTransport::InputBuffer::update (this=0x659400,
critical=true) at OcpiInputBuffer.cxx:104
OCPI::DataTransport::Port::createBuffers (this=0x6554d0) at
OcpiPort.cxx:550
getCircuit() appears to be NULL after the tid reaches 20 in the
createBuffers call.
I'm trying to set up a case where we setup 100 buffers to be released
with varying timestamps to the FPGA.
Regards,
Josh
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