Re: [PATCH v2] nvme: allow use of cmb on v1.4 controllers

[Klaus Jensen]

On Jan 15 07:30, Klaus Jensen wrote:
> From: Klaus Jensen <k.jensen@xxxxxxxxxxx>
> 
> Since NVMe v1.4 the Controller Memory Buffer must be explicitly enabled
> by the host.
> 

Sorry, messed up and missed adding the changes for v2.

v2:
  - Do not explicitly check the NVMe version, rely on the presence of
    the new register instead. (Christoph)
  - Use hi_lo_writeq. (Christoph, Keith)
  - Fix missing offset and use pci_bus_address(). (Keith)

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