Hello Anatoly, On Tue, Nov 2, 2021 at 4:54 PM Burakov, Anatoly <anatoly.bura...@intel.com> wrote: > > On 28-Oct-21 3:09 PM, Anatoly Burakov wrote: > > Currently, there is no way to map memory for DMA in a way that allows > > unmapping it partially later, because some IOMMU's do not support > > partial unmapping. There is a workaround of mapping all of these > > segments separately, but this is inconvenient and silly, so this > > commit adds a proper API that does it. > > > > This commit relies on earlier infrastructure that was built out to > > support "chunking", as the concept of "chunks" is essentially the same > > as page size. > > > > Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com> > > --- > > > > Notes: > > v2: > > - Added checks for page alignment of supplied values > > - Added rte_errno values (similar to patch 103165 [1]) > > > > [1] > > http://patches.dpdk.org/project/dpdk/patch/e8c5e7ba089e2283c3cd67e4529e52fe49390eb9.1635428963.git.anatoly.bura...@intel.com/ > > I think this API also needs VA and IOVA addresses in an array, so that > it's possible to map IOVA-discontiguous segments. This is too late for > this release, so let's postpone it till 22.02.
It seems this patch fell through the cracks. Any update? Thanks. -- David Marchand
