PCI Express Burst Transactions on Intel E7525 system

[kirick]

Hello All,

I am developing a driver for a custom PCI Express endpoint for academic research. What must my driver do so that block writes to the endpoint are sent as a single multiple DW packet rather than multiple single DW packets. For example, I want to send 256 contiguous DWORDs in a single transfer to my device. I evaluate the data that is recieved by my endpoint using Xilinx's Chipscope Pro and it shows that the transfer is split into individual DW packets. What C/assembly instruction sequence should I be using to instruct/convince the chipset to perform a burst transaction. System spec: Dell Precision 670 Dual Xeon 3.0Ghz with E7525 chipset running Windows XP Professional (32-bit).

[Intel_Software_Netw1]

Hello,

Thank you for posting your question on the Intel Software Network forum. This forum is normally used for discussion of software development-related issues, and as such, may not be monitored by hardware design people.

Your design inquiry will require a closer look by an Intel Product Representative.

If your company has its own Intel representative, you may wish to inquire whether they are able to assist with this inquiry. Your company's Purchasing Department will normally have your Intel representative's contact information. If you have no contact, please see http://www.intel.com/buy/networking/design.htm under "Design Components".

If your location is not listed, please see an Intel Authorized Distributor and ask for a Field Application Engineer (FAE). Our Intel Authorized Distributor list is also linked from the URL above.

I hope this helps.

Best regards,
Jim A
IntelSoftware NetworkSupport
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[kreece]

Hello kirick,

I have the same question regarding burst transfers. Have you discovered a means of getting the chipset to execute a burst transfer?

Thanks,

Kevin

[Intel_Software_Netw1]

Hi,

To reiterate, this is somewhat outside our scope -- however, you might try sending your question through the support linkhere: Intel Developer Network for PCI Express* Architecture

That site also has a number of links to PCI Express* documentation.

For Intel E7525 Memory Controller Hub (MCH) chipset docs,go here.

Beyond that, if your company has its own Intel representative, you may wish to inquire whether they are able to assist with this inquiry. Your company's Purchasing Department will normally have your Intel representative's contact information. If you have no contact, please see http://www.intel.com/buy/networking/design.htm under "Design Components".

If your location is not listed, please see an Intel Authorized Distributor and ask for a Field Application Engineer (FAE). Our Intel Authorized Distributor list is also linked from the URL above.

==

Lexi S.

IntelSoftware NetworkSupport

http://www.intel.com/software

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