This bug is awaiting verification that the linux-intel-
iotg/5.15.0-1006.8 kernel in -proposed solves the problem. Please test
the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-jammy' to 'verification-
done-jammy'. If the problem still exists, change the tag 'verification-
needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-jammy

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https://bugs.launchpad.net/bugs/1956413

Title:
  Intel EHL: Two of the on-board ethernet ports don't work

Status in HWE Next:
  New
Status in linux-intel-5.13 package in Ubuntu:
  Fix Released
Status in linux-intel-iotg package in Ubuntu:
  New
Status in linux-intel-5.13 source package in Focal:
  Fix Released
Status in linux-intel-iotg source package in Jammy:
  New
Status in linux-intel-iotg source package in Kinetic:
  New

Bug description:
  == Impact ==
  Only one of the three on-board ethernet ports works. The other two can't get 
IP addresses.

  == Fix ==
  commit 884d2b845477cd0a18302444dc20fe2d9a01743e
  Author: David Wu <david...@rock-chips.com>
  Date:   Mon Dec 13 19:15:15 2021 +0800

      net: stmmac: Add GFP_DMA32 for rx buffers if no 64 capability
      
      Use page_pool_alloc_pages instead of page_pool_dev_alloc_pages, which
      can give the gfp parameter, in the case of not supporting 64-bit width,
      using 32-bit address memory can reduce a copy from swiotlb.
      
      Signed-off-by: David Wu <david...@rock-chips.com>
      Signed-off-by: David S. Miller <da...@davemloft.net>

  == Risk of Regression ==
  Low. The commit changes gfp parameter only when there's no 64-bit capability, 
and it is already in mainline.

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