NAK: [SRU][N:nvidia][PATCH 0/8] MANA: include driver fixes and enable module on ARM64

[John Cabaj]

On 10/16/24 8:36 AM, Jacob Martin wrote:
> BugLink: https://bugs.launchpad.net/bugs/2084598
> 
> SRU Justification
> 
> [Impact]
> 
> NVIDIA kernels are used on systems that require support for the Microsoft Azure
> Network Adapter, including on ARM64 systems with support for 64K and 4K page
> sizes. Build the MANA driver on both arches and include the listed fixes for
> the MANA driver to support both 64K and 4K page sizes and address a race
> condition.
> 
> [Fix]
> 
> UBUNTU: [Packaging] nvidia: Include mana.ko in linux-modules-ABIVER package
> UBUNTU: [Config] nvidia: Enable MANA configs on x86 and arm64
> RDMA/mana_ib: use the correct page size for mapping user-mode doorbell page
> RDMA/mana_ib: use the correct page table index based on hardware page size
> net: mana: Fix RX buf alloc_size alignment and atomic op panic
> net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc response
> net: mana: Add support for page sizes other than 4KB on ARM64
> net: mana: Enable MANA driver on ARM64 with 4K page size
> 
> [Test Plan]
> 
> Compile tested on x86 and arm64. Kernel regression testing will be run to
> verify there are no regressions from these patches on NVIDIA hardware.
> 
> [Where problems could occur]
> 
> These changes are specific to the MANA networking driver. Issues with this
> patch would manifest as misbehavior of that driver, likely on ARM64 platforms.
> 
> Haiyang Zhang (4):
>    net: mana: Enable MANA driver on ARM64 with 4K page size


>    net: mana: Add support for page sizes other than 4KB on ARM64>    net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc response

These two commits were picked from linux-next and netdev at the time, 
but haven since been upstreamed. We should manually cherry-pick these 
from upstream instead.




>    net: mana: Fix RX buf alloc_size alignment and atomic op panic
> 
> Jacob Martin (2):
>    UBUNTU: [Config] nvidia: Enable MANA configs on x86 and arm64
>    UBUNTU: [Packaging] nvidia: Include mana.ko in linux-modules-ABIVER
>      package
> 
> Long Li (2):
>    RDMA/mana_ib: use the correct page table index based on hardware page
>      size
>    RDMA/mana_ib: use the correct page size for mapping user-mode doorbell
>      page
> 
>   debian.nvidia/config/annotations              |  6 ++
>   debian.nvidia/control.d/nvidia.inclusion-list |  1 +
>   drivers/infiniband/hw/mana/main.c             |  8 +-
>   drivers/net/ethernet/microsoft/Kconfig        |  3 +-
>   .../net/ethernet/microsoft/mana/gdma_main.c   | 10 +--
>   .../net/ethernet/microsoft/mana/hw_channel.c  | 76 ++++++++++---------
>   drivers/net/ethernet/microsoft/mana/mana_en.c | 14 ++--
>   .../net/ethernet/microsoft/mana/shm_channel.c | 13 ++--
>   include/net/mana/gdma.h                       | 10 ++-
>   include/net/mana/mana.h                       |  3 +-
>   10 files changed, 86 insertions(+), 58 deletions(-)
>