> > Ioctl implementations I looked at treated the ioctl buffer as > > input-output (except for read only or write only ioctl's). Maybe > > there's examples of redirecting the response to separate buffer(s)? > > There are examples of this, eg SG_IO uses scatter/gather lists I did come across a use of sgl's (don't recall where), but I found the documentation so convoluted that I gave up trying to make sense of what it was attempting to do. :) SGLs for input or output add complexity, so for myself, I would need to be convinced that adding it to a common framework makes sense. (SGLs which are part of command data are a separate issue.) Though to be fair, I find netlink based data to be convoluted... - Sean -- 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
