On Mon, Apr 24, 2017 at 12:58:53PM +0300, Vasiliy Tolstov wrote: > Hi! Does this mailing list suitable for questions about rdma userspace > programming or i need to find another list? This is the right list. > > My question is - how userspace libraries communicate with kernel > devices which provided by kernel infiniband drivers? This is character > devices and userspace libraries read/write to it or userspace library > do some ioctls? There are number of char devices exported by infiniband subsystem (/dev/infiniband/*) and the communication is performed with read/write interfaces to uverbs file [1]. Right now, we are in process of migration from these interfaces to ioctl based, see Matan's latest RFC [2]. [1] https://github.com/linux-rdma/rdma-core/blob/master/Documentation/libibverbs.md [2] http://marc.info/?l=linux-rdma&m=149261526916544&w=2 > > Where i can find info about it? > > -- > Vasiliy Tolstov, > e-mail: v.tolstov@xxxxxxxxx > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html
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