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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: Vaibhav Jain <vaibhav@linux.ibm.com>,
	linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org,
	linux-kernel@vger.kernel.org
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH v8 4/5] ndctl/papr_scm,uapi: Add support for PAPR nvdimm specific methods
Date: Wed, 27 May 2020 15:25:21 +0530	[thread overview]
Message-ID: <87sgfl7ldi.fsf@linux.ibm.com> (raw)
In-Reply-To: <20200527041244.37821-5-vaibhav@linux.ibm.com>

Vaibhav Jain <vaibhav@linux.ibm.com> writes:

> Introduce support for PAPR NVDIMM Specific Methods (PDSM) in papr_scm
> module and add the command family to the white list of NVDIMM command
> sets. Also advertise support for ND_CMD_CALL for the nvdimm
> command mask and implement necessary scaffolding in the module to
> handle ND_CMD_CALL ioctl and PDSM requests that we receive.
>
> The layout of the PDSM request as we expect from libnvdimm/libndctl is
> described in newly introduced uapi header 'papr_scm_pdsm.h' which
> defines a new 'struct nd_pdsm_cmd_pkg' header. This header is used
> to communicate the PDSM request via member
> 'nd_pkg_papr_scm->nd_command' and size of payload that need to be
> sent/received for servicing the PDSM.
>
> A new function is_cmd_valid() is implemented that reads the args to
> papr_scm_ndctl() and performs sanity tests on them. A new function
> papr_scm_service_pdsm() is introduced and is called from
> papr_scm_ndctl() in case of a PDSM request is received via ND_CMD_CALL
> command from libnvdimm.
>

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>

> Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
> Cc: Dan Williams <dan.j.williams@intel.com>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Ira Weiny <ira.weiny@intel.com>
> Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
> ---

-aneesh
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  reply	other threads:[~2020-05-27  9:56 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27  4:12 [PATCH v8 0/5] powerpc/papr_scm: Add support for reporting nvdimm health Vaibhav Jain
2020-05-27  4:12 ` [PATCH v8 1/5] powerpc: Document details on H_SCM_HEALTH hcall Vaibhav Jain
2020-05-27 18:56   ` Dan Williams
2020-05-28 19:24     ` Vaibhav Jain
2020-05-27  4:12 ` [PATCH v8 2/5] seq_buf: Export seq_buf_printf Vaibhav Jain
2020-06-01 12:01   ` Vaibhav Jain
2020-06-01 13:48     ` Steven Rostedt
2020-06-01 14:46       ` Vaibhav Jain
2020-05-27  4:12 ` [PATCH v8 3/5] powerpc/papr_scm: Fetch nvdimm health information from PHYP Vaibhav Jain
2020-05-27  9:54   ` Aneesh Kumar K.V
2020-05-27  4:12 ` [PATCH v8 4/5] ndctl/papr_scm,uapi: Add support for PAPR nvdimm specific methods Vaibhav Jain
2020-05-27  9:55   ` Aneesh Kumar K.V [this message]
2020-05-27  4:12 ` [PATCH v8 5/5] powerpc/papr_scm: Implement support for PAPR_SCM_PDSM_HEALTH Vaibhav Jain
2020-05-27  9:55   ` Aneesh Kumar K.V

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