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In Linux kernel 4.9-rc1, the function ib_get_dma_mr() was removed and a second parameter was added to ib_alloc_pd(). As this broke the building of the ko2iblnd module in staging, the Kconfig for LNet has marked ko2iblnd as broken and stopped building it. This patch fixes this breakage by: - Removing the BROKEN tag from lnet/Kconfig. - Make it so the module parameter map_on_demand can no longer be zero (we have to configure FMR/FastReg pools; it can no longer be off). - No longer try to use the global DMA memory region, but make use of the FMR/FastReg pool for all RDMA Tx operations. - Everywhere we are using the device DMA mr to derive the L-key for non-registered memory regions, use the pd->local_dma_lkey value instead. - Make the default map_on_demand = 256. This will allow nodes with this patch to still connected to older nodes without this patch and FMR/FastReg turned off. When FMR/FastReg is turned off, we use 256 as the max frags so the two sides will still be able to communicate and work. - Fix a mistake with BUILD_BUG_ON calls in o2iblnd.c which caused compiling to fail. Signed-off-by: Doug Oucharek <doug.s.oucharek@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9026 Reviewed-on: https://review.whamcloud.com/#/c/24931/ Reviewed-by: James Simmons <uja.ornl@yahoo.com> Reviewed-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.