verbs: custom parent-domain allocators#596
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yishaih merged 6 commits intolinux-rdma:masterfrom Nov 11, 2019
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To commit 45b268543a8d ("RDMA/uapi: Fix and re-organize the usage of
rdma_driver_id")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Extend the parent domain object with custom allocation callbacks that can be used by user-applications to override the provider allocation. This can be used for example to add NUMA aware allocation. The new allocator receives context information about the parent domain, as well as the requested size and alignment of the buffer. It also receives a vendor-specific resource type code to allow customizing it for specific resources. The allocator then allocates the memory or returns an IBV_ALLOCATOR_USE_DEFAULT value to request that the provider driver use its own allocation method. Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Extend mlx5_alloc_parent_domain() to support custom allocator, downstream patches from this series will use this functionality. Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Add custom allocation support for QP and RWQ buffers by extending the internal allocation flows to consider this option. Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Add custom allocation support for DBR by extending the internal allocation/free flows to consider this option. Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Add custom allocation support for SRQ buffer by extending the internal allocation flow to consider this option. As part of this change other options that were missed as of "extern allocator" became applicable as well. Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
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This series extends the parent domain object with custom allocation callbacks that can be used by user-applications to override the provider allocation.
This can be used for example to add NUMA aware allocation.
The API was introduced in the mailing list by the below RFC and was implemented by mlx5 provider.
https://www.spinics.net/lists/linux-rdma/msg84590.html