On 4/2/2017 8:41 AM, Sagi Grimberg wrote:
This patch set is aiming to automatically find the optimal queue <-> irq multi-queue assignments in storage ULPs (demonstrated on nvme-rdma) based on the underlying rdma device irq affinity settings. First two patches modify mlx5 core driver to use generic API to allocate array of irq vectors with automatic affinity settings instead of open-coding exactly what it does (and slightly worse). Then, in order to obtain an affinity map for a given completion vector, we expose a new RDMA core API, and implement it in mlx5. The third part is addition of a rdma-based queue mapping helper to blk-mq that maps the tagset hctx's according to the device affinity mappings. I'd happily convert some more drivers, but I'll need volunteers to test as I don't have access to any other devices.
I'll test cxgb4 if you convert it. :)
