Re: [PATCH v8 5/5] powerpc/papr_scm: Implement support for PAPR_SCM_PDSM_HEALTH
From: Aneesh Kumar K.V
Date: Wed May 27 2020 - 05:56:28 EST
Vaibhav Jain <vaibhav@xxxxxxxxxxxxx> writes:
> This patch implements support for PDSM request 'PAPR_SCM_PDSM_HEALTH'
> that returns a newly introduced 'struct nd_papr_pdsm_health' instance
> containing dimm health information back to user space in response to
> ND_CMD_CALL. This functionality is implemented in newly introduced
> papr_scm_get_health() that queries the scm-dimm health information and
> then copies this information to the package payload whose layout is
> defined by 'struct nd_papr_pdsm_health'.
> The patch also introduces a new member 'struct papr_scm_priv.health'
> thats an instance of 'struct nd_papr_pdsm_health' to cache the health
> information of a nvdimm. As a result functions drc_pmem_query_health()
> and flags_show() are updated to populate and use this new struct
> instead of a u64 integer that was earlier used.
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
> Cc: "Aneesh Kumar K . V" <aneesh.kumar@xxxxxxxxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
> Signed-off-by: Vaibhav Jain <vaibhav@xxxxxxxxxxxxx>