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From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: linux-acpi@vger.kernel.org
Subject: [PATCH v2 1/2] acpi, nfit: hide unknown commands from nmemX/commands
Date: Mon, 30 Oct 2017 13:47:03 -0700	[thread overview]
Message-ID: <150939642330.4577.10714458271356489094.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <150939641796.4577.379718469071595984.stgit@dwillia2-desk3.amr.corp.intel.com>

For vendor specific commands that do not have a common kernel
translation, hide them from nmemX/commands. For example, the following
results from new enabling to probe for support of the new
NVDIMM_FAMILY_INTEL DSMs specified in v1.6 of the command specification
[1]:

    # cat /sys/bus/nd/devices/nmem0/commands
    smart smart_thresh flags get_size get_data set_data effect_size
    effect_log vendor cmd_call unknown unknown unknown unknown unknown
    unknown unknown unknown

[1]: https://pmem.io/documents/NVDIMM_DSM_Interface-V1.6.pdf

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/acpi/nfit/core.c |   10 ++++++++--
 drivers/acpi/nfit/nfit.h |    6 ++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index ebe0857ac346..444832b372ec 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1769,8 +1769,14 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
 		 * userspace interface.
 		 */
 		cmd_mask = 1UL << ND_CMD_CALL;
-		if (nfit_mem->family == NVDIMM_FAMILY_INTEL)
-			cmd_mask |= nfit_mem->dsm_mask;
+		if (nfit_mem->family == NVDIMM_FAMILY_INTEL) {
+			/*
+			 * These commands have a 1:1 correspondence
+			 * between DSM payload and libnvdimm ioctl
+			 * payload format.
+			 */
+			cmd_mask |= nfit_mem->dsm_mask & NVDIMM_STANDARD_CMDMASK;
+		}
 
 		if (nfit_mem->has_lsi)
 			set_bit(ND_CMD_GET_CONFIG_SIZE, &cmd_mask);
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index 3976d649f27c..b987196bf132 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -38,6 +38,12 @@
 		| ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED \
 		| ACPI_NFIT_MEM_NOT_ARMED | ACPI_NFIT_MEM_MAP_FAILED)
 
+#define NVDIMM_STANDARD_CMDMASK \
+(1 << ND_CMD_SMART | 1 << ND_CMD_SMART_THRESHOLD | 1 << ND_CMD_DIMM_FLAGS \
+ | 1 << ND_CMD_GET_CONFIG_SIZE | 1 << ND_CMD_GET_CONFIG_DATA \
+ | 1 << ND_CMD_SET_CONFIG_DATA | 1 << ND_CMD_VENDOR_EFFECT_LOG_SIZE \
+ | 1 << ND_CMD_VENDOR_EFFECT_LOG | 1 << ND_CMD_VENDOR)
+
 enum nfit_uuids {
 	/* for simplicity alias the uuid index with the family id */
 	NFIT_DEV_DIMM = NVDIMM_FAMILY_INTEL,

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WARNING: multiple messages have this Message-ID (diff)
From: Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org
Cc: linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH v2 1/2] acpi, nfit: hide unknown commands from nmemX/commands
Date: Mon, 30 Oct 2017 13:47:03 -0700	[thread overview]
Message-ID: <150939642330.4577.10714458271356489094.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <150939641796.4577.379718469071595984.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

For vendor specific commands that do not have a common kernel
translation, hide them from nmemX/commands. For example, the following
results from new enabling to probe for support of the new
NVDIMM_FAMILY_INTEL DSMs specified in v1.6 of the command specification
[1]:

    # cat /sys/bus/nd/devices/nmem0/commands
    smart smart_thresh flags get_size get_data set_data effect_size
    effect_log vendor cmd_call unknown unknown unknown unknown unknown
    unknown unknown unknown

[1]: https://pmem.io/documents/NVDIMM_DSM_Interface-V1.6.pdf

Signed-off-by: Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 drivers/acpi/nfit/core.c |   10 ++++++++--
 drivers/acpi/nfit/nfit.h |    6 ++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index ebe0857ac346..444832b372ec 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1769,8 +1769,14 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
 		 * userspace interface.
 		 */
 		cmd_mask = 1UL << ND_CMD_CALL;
-		if (nfit_mem->family == NVDIMM_FAMILY_INTEL)
-			cmd_mask |= nfit_mem->dsm_mask;
+		if (nfit_mem->family == NVDIMM_FAMILY_INTEL) {
+			/*
+			 * These commands have a 1:1 correspondence
+			 * between DSM payload and libnvdimm ioctl
+			 * payload format.
+			 */
+			cmd_mask |= nfit_mem->dsm_mask & NVDIMM_STANDARD_CMDMASK;
+		}
 
 		if (nfit_mem->has_lsi)
 			set_bit(ND_CMD_GET_CONFIG_SIZE, &cmd_mask);
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index 3976d649f27c..b987196bf132 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -38,6 +38,12 @@
 		| ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED \
 		| ACPI_NFIT_MEM_NOT_ARMED | ACPI_NFIT_MEM_MAP_FAILED)
 
+#define NVDIMM_STANDARD_CMDMASK \
+(1 << ND_CMD_SMART | 1 << ND_CMD_SMART_THRESHOLD | 1 << ND_CMD_DIMM_FLAGS \
+ | 1 << ND_CMD_GET_CONFIG_SIZE | 1 << ND_CMD_GET_CONFIG_DATA \
+ | 1 << ND_CMD_SET_CONFIG_DATA | 1 << ND_CMD_VENDOR_EFFECT_LOG_SIZE \
+ | 1 << ND_CMD_VENDOR_EFFECT_LOG | 1 << ND_CMD_VENDOR)
+
 enum nfit_uuids {
 	/* for simplicity alias the uuid index with the family id */
 	NFIT_DEV_DIMM = NVDIMM_FAMILY_INTEL,

  reply	other threads:[~2017-10-30 20:49 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-30 20:46 [PATCH v2 0/2] acpi, nfit: support for new NVDIMM_FAMILY_INTEL commands Dan Williams
2017-10-30 20:46 ` Dan Williams
2017-10-30 20:47 ` Dan Williams [this message]
2017-10-30 20:47   ` [PATCH v2 1/2] acpi, nfit: hide unknown commands from nmemX/commands Dan Williams
2017-10-30 20:47 ` [PATCH v2 2/2] acpi, nfit: add support for NVDIMM_FAMILY_INTEL v1.6 DSMs Dan Williams
2017-10-30 20:47   ` Dan Williams
2017-10-31 21:27   ` Jerry Hoemann
2017-10-31 21:27     ` Jerry Hoemann
2017-10-31 21:42     ` Dan Williams
2017-10-31 21:42       ` Dan Williams
2017-10-31 22:05       ` Jerry Hoemann
2017-10-31 22:05         ` Jerry Hoemann
2017-10-31 23:19         ` Dan Williams
2017-10-31 23:19           ` Dan Williams
2017-11-01 17:35           ` Jerry Hoemann
2017-11-01 17:35             ` Jerry Hoemann
2017-11-02  0:33             ` Dan Williams
2017-11-02  0:33               ` Dan Williams

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