(kernel-rolling) PCI: Mark Px210 PCI-E Extended Tags as broken #237
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Per PCIe r3.1, sec 2.2.6.2 and 7.8.4, a Requester may not use 8-bit Tags unless its Extended Tag Field Enable is set, but all Receivers/Completers must handle 8-bit Tags correctly regardless of their Extended Tag Field Enable. Phytium Px210 chipset has some issues with 8-bit Tags enabled when doing DMA operations, add this quirk to disable Extended Tags for the entire hierarchy to avoid the problem. Signed-off-by: Liu Tao <[email protected]> Signed-off-by: Chen Baozi <[email protected]> Signed-off-by: Wang Yinfeng <[email protected]> Signed-off-by: Wang Zhimin <[email protected]> Signed-off-by: wangzhimin1179 <[email protected]>
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here.
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/lgtm |
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Picked and rebased from #223.
From original pull request:
Builds tested