[openib-general] [RFC] [PATCH] SRQ API

Roland Dreier roland at topspin.com
Wed Jun 15 14:56:15 PDT 2005


    Caitlin> I would recommend defining warning events associated with
    Caitlin> SRQ usage. Omitting them creates glaring security
    Caitlin> vulnerabilities. DAT/IT-API define an SRQ low-watermark
    Caitlin> (event when number of buffers in SRQ falls below set
    Caitlin> level), per RQ soft high-watermark (event when one QP
    Caitlin> allocates more than N uncompleted buffers) and a per RQ
    Caitlin> hard high-watermark (connection terminated when more than
    Caitlin> N buffers required for one QP). The first two are defined
    Caitlin> for iWARP/RDMAC, the third is optional under RNIC-PI.

You're right.  I misread the enum we already have and thought that we
had SRQ events.  I'll add the SRQ low-water event, since that's part
of the IB spec supported by current HW, and we can add whatever other
events are required as support for different HW is added to the tree.

 - R.



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