On Wed, Nov 6, 2019 at 7:16 AM Wangyu (Eric) <seven.wan...@huawei.com> wrote: > > > In 64K pagesize system, DPDK will read the size NIC need in > uio/uio1/maps/map1/size, when the size small than pagesize(e.g.,82599 is > 16K), dev->mem_resource[i].len will be 16K, but the mmap function applies for > at least 1 page size, which is 64K. > Then second NIC mmap, start address is first NIC address + 16K, which already > used by first NIC.
Do you see this issue with vfio? > So if change the size to first NIC address + 64K, problem solved. You are hacking a description of the device resources to workaround a problem. This patch is a no go for me. Maybe there is something to do with the hint passed to mmap in uio case. Adding Anatoly to the loop. -- David Marchand
