On 09/07/2015 01:08, Marciniszyn, Mike wrote: >> anything wrong with the umem services provided by the IB core that >> requires this implementation? what? >> > > The current level of the API is mismatched with the PSM SDMA. > > The ib_umem api: > - maps an SG list which isn't required by PSM since DMA mapping is done by the low level SDMA Can I ask why do you prefer mapping page by page over using a single sg list? > - the mapping is bi-directional vs. from device > - The pd's context is not there > > Certainly we would consider a core change that provides just the page locking and we could fake a context. > > Mike -- 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
