Infiniband Subnet Manager protocol specification
Greetings all,
I am currently writing a Infiniband SW overlay driver for our RDMA "like" network switches and HBA controllers. I've gotten everything to the point where I am getting SM 'get' requests that I know my 'process_mad' function is supposed to handle but I cannot for the life of me find the protocol specification for Subnet Manager MAD packets.
I'm using opensm for the subnet manager and as of now it always reports missing SM master. I gather that is because I'm not handling the packets that come in that need MAD processing correctly.
Googling for "Infiniband Subnet Manager protocol specification" is not turning up anything useful.
If there is a better search term, or if there is a pointer to the specification that someone can provide I'd be very grateful.
Thanks,
- Greg Rose
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Hi Greg,
Quoted 12 lines · Greg Rose
Greetings all,
I am currently writing a Infiniband SW overlay driver for our RDMA "like" network switches and HBA controllers. I've gotten everything to the point where I am getting SM 'get' requests that I know my '
process_mad' function is supposed to handle but I cannot for the life of me find the protocol specification for Subnet Manager MAD packets.I'm using opensm for the subnet manager and as of now it always reports missing SM master. I gather that is because I'm not handling the packets that come in that need MAD processing correctly.
Quoted 5 lines
Googling for "Infiniband Subnet Manager protocol specification" is not turning up anything useful.
If there is a better search term, or if there is a pointer to the specification that someone can provide I'd be very grateful.
You can find all the details in IBTA (InfiniBand Trade Association) version 1.3 volume 1. SM class MADs are found in chapter 14.
-- Hal
Quoted 10 lines
Thanks,
- Greg Rose
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Quoted 15 lines · Hal Rosenstock
Hi Greg,
Quoted 12 lines · Greg Rose
Greetings all,
I am currently writing a Infiniband SW overlay driver for our RDMA "like" network switches and HBA controllers. I've gotten everything to the point where I am getting SM 'get' requests that I know my '
process_mad' function is supposed to handle but I cannot for the life of me find the protocol specification for Subnet Manager MAD packets.I'm using opensm for the subnet manager and as of now it always reports missing SM master. I gather that is because I'm not handling the packets that come in that need MAD processing correctly.
Quoted 8 lines
Quoted 5 lines
Googling for "Infiniband Subnet Manager protocol specification" is not turning up anything useful.
If there is a better search term, or if there is a pointer to the specification that someone can provide I'd be very grateful.
You can find all the details in IBTA (InfiniBand Trade Association) version 1.3 volume 1. SM class MADs are found in chapter 14.
Oh boy... that's a fat spec!
But it seems to have what I need. Looks like I have some reading to do.
Thank you very much!
- Greg
Quoted 13 lines
-- Hal
Quoted 10 lines
Thanks,
- Greg Rose
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