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Microsemi / switchtec-kernel

A kernel module for the Microsemi PCIe switch
GNU General Public License v2.0
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How does switchtec-kernel work across two switchtec chips? #2

Closed honda724 closed 6 years ago

honda724 commented 7 years ago

Hi,

I want to make shared memory (or CMI) between two host across two switchtec chips. Is it possible by using current driver?

BR, honda / Aug. 18, 2017

lsgunth commented 7 years ago

Hi,

Yes, the driver has experimental support for CMI in the xlink and xlink_4.12 branches. However, you need very recent firmware to use this feature and the switch must have a couple configuration parameters set. I suggest you contact your Microsemi rep who can help you get all the pieces you need.

Logan

honda724 commented 7 years ago

Hi Logan,

I've install xlink_4.12 in my platform successfully. Could you tell me how to verify CMI function?

My platform already verified by using psxapp. I can ping from hostA to hostB successfully as below diagram. hostA <--> switchtecA <--> switchtecB <--> hostB

Thanks, honda / Aug. 21, 2017

lsgunth commented 7 years ago

Hey,

You will see the dmesg "Using crosslink configuration" if you are actually in a CMI configuration.

Logan

honda724 commented 6 years ago

Thanks a lot. It works now.