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From: Andrew Donnellan <ajd@linux.ibm.com>
To: "Alastair D'Silva" <alastair@au1.ibm.com>, alastair@d-silva.org
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
	"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
	"Paul Mackerras" <paulus@samba.org>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Frederic Barrat" <fbarrat@linux.ibm.com>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Mauro Carvalho Chehab" <mchehab+samsung@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Rob Herring" <robh@kernel.org>,
	"Anton Blanchard" <anton@ozlabs.org>,
	"Krzysztof Kozlowski" <krzk@kernel.org>,
	"Mahesh Salgaonkar" <mahesh@linux.vnet.ibm.com>,
	"Madhavan Srinivasan" <maddy@linux.vnet.ibm.com>,
	"Cédric Le Goater" <clg@kaod.org>,
	"Anju T Sudhakar" <anju@linux.vnet.ibm.com>,
	"Hari Bathini" <hbathini@linux.ibm.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Greg Kurz" <groug@kaod.org>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Masahiro Yamada" <yamada.masahiro@socionext.com>,
	"Alexey Kardashevskiy" <aik@ozlabs.ru>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 14/27] powerpc/powernv/pmem: Add support for Admin commands
Date: Thu, 27 Feb 2020 19:22:26 +1100	[thread overview]
Message-ID: <c88a3808-3ce9-ff6c-b963-ca9317092145@linux.ibm.com> (raw)
In-Reply-To: <20200221032720.33893-15-alastair@au1.ibm.com>

On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@d-silva.org>
> 
> This patch requests the metadata required to issue admin commands, as well
> as some helper functions to construct and check the completion of the
> commands.
> 
> Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
> ---
>   arch/powerpc/platforms/powernv/pmem/ocxl.c    |  65 ++++++++
>   .../platforms/powernv/pmem/ocxl_internal.c    | 153 ++++++++++++++++++
>   .../platforms/powernv/pmem/ocxl_internal.h    |  61 +++++++
>   3 files changed, 279 insertions(+)
> 
> diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl.c b/arch/powerpc/platforms/powernv/pmem/ocxl.c
> index 431212c9f0cc..4e782d22605b 100644
> --- a/arch/powerpc/platforms/powernv/pmem/ocxl.c
> +++ b/arch/powerpc/platforms/powernv/pmem/ocxl.c
> @@ -216,6 +216,58 @@ static int register_lpc_mem(struct ocxlpmem *ocxlpmem)
>   	return 0;
>   }
>   
> +/**
> + * extract_command_metadata() - Extract command data from MMIO & save it for further use
> + * @ocxlpmem: the device metadata
> + * @offset: The base address of the command data structures (address of CREQO)
> + * @command_metadata: A pointer to the command metadata to populate
> + * Return: 0 on success, negative on failure
> + */
> +static int extract_command_metadata(struct ocxlpmem *ocxlpmem, u32 offset,
> +					struct command_metadata *command_metadata)
> +{
> +	int rc;
> +	u64 tmp;
> +
> +	rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu, offset, OCXL_LITTLE_ENDIAN,
> +				     &tmp);
> +	if (rc)
> +		return rc;
> +
> +	command_metadata->request_offset = tmp >> 32;
> +	command_metadata->response_offset = tmp & 0xFFFFFFFF;
> +
> +	rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu, offset + 8, OCXL_LITTLE_ENDIAN,
> +				     &tmp);
> +	if (rc)
> +		return rc;
> +
> +	command_metadata->data_offset = tmp >> 32;
> +	command_metadata->data_size = tmp & 0xFFFFFFFF;
> +
> +	command_metadata->id = 0;
> +
> +	return 0;
> +}
> +
> +/**
> + * setup_command_metadata() - Set up the command metadata
> + * @ocxlpmem: the device metadata
> + */
> +static int setup_command_metadata(struct ocxlpmem *ocxlpmem)
> +{
> +	int rc;
> +
> +	mutex_init(&ocxlpmem->admin_command.lock);
> +
> +	rc = extract_command_metadata(ocxlpmem, GLOBAL_MMIO_ACMA_CREQO,
> +				      &ocxlpmem->admin_command);
> +	if (rc)
> +		return rc;
> +
> +	return 0;
> +}
> +
>   /**
>    * is_usable() - Is a controller usable?
>    * @ocxlpmem: the device metadata
> @@ -456,6 +508,14 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>   	}
>   	ocxlpmem->pdev = pdev;
>   
> +	ocxlpmem->timeouts[ADMIN_COMMAND_ERRLOG] = 2000; // ms
> +	ocxlpmem->timeouts[ADMIN_COMMAND_HEARTBEAT] = 100; // ms
> +	ocxlpmem->timeouts[ADMIN_COMMAND_SMART] = 100; // ms
> +	ocxlpmem->timeouts[ADMIN_COMMAND_CONTROLLER_DUMP] = 1000; // ms
> +	ocxlpmem->timeouts[ADMIN_COMMAND_CONTROLLER_STATS] = 100; // ms
> +	ocxlpmem->timeouts[ADMIN_COMMAND_SHUTDOWN] = 1000; // ms
> +	ocxlpmem->timeouts[ADMIN_COMMAND_FW_UPDATE] = 16000; // ms

Why are we keeping these timeouts in a per device struct? I can't see 
anywhere where we change these values.

> +
>   	pci_set_drvdata(pdev, ocxlpmem);
>   
>   	ocxlpmem->ocxl_fn = ocxl_function_open(pdev);
> @@ -501,6 +561,11 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>   		goto err;
>   	}
>   
> +	if (setup_command_metadata(ocxlpmem)) {
> +		dev_err(&pdev->dev, "Could not read OCXL command matada\n");

metadata

Also, "OCXL command metadata" is misleading, this is a pmem specific 
thing, not an OpenCAPI thing, I would prefer just "command metadata".

> +		goto err;
> +	}
> +
>   	elapsed = 0;
>   	timeout = ocxlpmem->readiness_timeout + ocxlpmem->memory_available_timeout;
>   	while (!is_usable(ocxlpmem, false)) {
> diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.c b/arch/powerpc/platforms/powernv/pmem/ocxl_internal.c
> index 617ca943b1b8..583f48023025 100644
> --- a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.c
> +++ b/arch/powerpc/platforms/powernv/pmem/ocxl_internal.c
> @@ -17,3 +17,156 @@ int ocxlpmem_chi(const struct ocxlpmem *ocxlpmem, u64 *chi)
>   
>   	return 0;
>   }
> +
> +#define COMMAND_REQUEST_SIZE (8 * sizeof(u64))
> +static int scm_command_request(const struct ocxlpmem *ocxlpmem,
> +			       struct command_metadata *cmd, u8 op_code)
> +{
> +	u64 val = op_code;
> +	int rc;
> +	u8 i;
> +
> +	cmd->op_code = op_code;
> +	cmd->id++;
> +
> +	val |= ((u64)cmd->id) << 16;
> +
> +	rc = ocxl_global_mmio_write64(ocxlpmem->ocxl_afu, cmd->request_offset,
> +				      OCXL_LITTLE_ENDIAN, val);
> +	if (rc)
> +		return rc;
> +
> +	for (i = sizeof(u64); i < COMMAND_REQUEST_SIZE; i += sizeof(u64)) {
> +		rc = ocxl_global_mmio_write64(ocxlpmem->ocxl_afu,
> +					      cmd->request_offset + i,
> +					      OCXL_LITTLE_ENDIAN, 0);
> +		if (rc)
> +			return rc;
> +	}
> +
> +	return 0;
> +}
> +
> +int admin_command_request(struct ocxlpmem *ocxlpmem, u8 op_code)
> +{
> +	u64 val;
> +	int rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu, GLOBAL_MMIO_CHI,
> +					 OCXL_LITTLE_ENDIAN, &val);
> +	if (rc)
> +		return rc;

Ignoring the value here expected, you're just trying to verify that you 
don't see an error on the read?

> +
> +	return scm_command_request(ocxlpmem, &ocxlpmem->admin_command, op_code);
> +}
> +
> +static int command_response(const struct ocxlpmem *ocxlpmem,
> +			    const struct command_metadata *cmd)
> +{
> +	u64 val;
> +	u16 id;
> +	u8 status;
> +	int rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> +					 cmd->response_offset,
> +					 OCXL_LITTLE_ENDIAN, &val);
> +	if (rc)
> +		return rc;
> +
> +	status = val & 0xff;
> +	id = (val >> 16) & 0xffff;
> +
> +	if (id != cmd->id) {
> +		dev_warn(&ocxlpmem->dev,
> +			 "Expected response for command %d, but received response for command %d instead.\n",
> +			 cmd->id, id);

If this happens I imagine something's gone pretty wrong - this should 
probably be a dev_err()? And perhaps we want to make sure we return an 
error code rather than whatever status code we get from the MMIO?

> +	}
> +
> +	return status;
> +}
> +
> +int admin_response(const struct ocxlpmem *ocxlpmem)
> +{
> +	return command_response(ocxlpmem, &ocxlpmem->admin_command);
> +}
> +
> +
> +int admin_command_execute(const struct ocxlpmem *ocxlpmem)
> +{
> +	return ocxl_global_mmio_set64(ocxlpmem->ocxl_afu, GLOBAL_MMIO_HCI,
> +				      OCXL_LITTLE_ENDIAN, GLOBAL_MMIO_HCI_ACRW);
> +}
> +
> +static bool admin_command_complete(const struct ocxlpmem *ocxlpmem)
> +{
> +	u64 val = 0;
> +
> +	int rc = ocxlpmem_chi(ocxlpmem, &val);
> +
> +	WARN_ON(rc);
> +
> +	return (val & GLOBAL_MMIO_CHI_ACRA) != 0;
> +}
> +
> +int admin_command_complete_timeout(const struct ocxlpmem *ocxlpmem,
> +				   int command)
> +{
> +	u32 timeout = ocxlpmem->timeouts[command];
> +	// 32 is the next power of 2 greater than the 20ms minimum for msleep
> +#define TIMEOUT_SLEEP_MILLIS 32
> +	timeout /= TIMEOUT_SLEEP_MILLIS;
> +	if (!timeout)
> +		timeout = DEFAULT_TIMEOUT / TIMEOUT_SLEEP_MILLIS;
> +
> +	while (timeout-- > 0) {
> +		if (admin_command_complete(ocxlpmem))
> +			return 0;
> +		msleep(TIMEOUT_SLEEP_MILLIS);
> +	}

I think the more traditional way to implement timeouts is something more 
like:

   unsigned long timeout = jiffies + msecs_to_jiffies(<timeout period>);
   do {
     <check>
     <sleep>
   } while (time_before(jiffies, timeout));

> +
> +	if (admin_command_complete(ocxlpmem))
> +		return 0;
> +
> +	return -EBUSY;
> +}
> +
> +int admin_response_handled(const struct ocxlpmem *ocxlpmem)
> +{
> +	return ocxl_global_mmio_set64(ocxlpmem->ocxl_afu, GLOBAL_MMIO_CHIC,
> +				      OCXL_LITTLE_ENDIAN, GLOBAL_MMIO_CHI_ACRA);
> +}

This looks wrong? My reading of the spec is that you're meant to *clear* 
ACRA upon completion of handing, this looks like it's setting ACRA to 1.

> +
> +void warn_status(const struct ocxlpmem *ocxlpmem, const char *message,
> +		     u8 status)
> +{
> +	const char *text = "Unknown";
> +
> +	switch (status) {
> +	case STATUS_SUCCESS:
> +		text = "Success";
> +		break;
> +
> +	case STATUS_MEM_UNAVAILABLE:
> +		text = "Persistent memory unavailable";
> +		break;
> +
> +	case STATUS_BAD_OPCODE:
> +		text = "Bad opcode";
> +		break;
> +
> +	case STATUS_BAD_REQUEST_PARM:
> +		text = "Bad request parameter";
> +		break;
> +
> +	case STATUS_BAD_DATA_PARM:
> +		text = "Bad data parameter";
> +		break;
> +
> +	case STATUS_DEBUG_BLOCKED:
> +		text = "Debug action blocked";
> +		break;
> +
> +	case STATUS_FAIL:
> +		text = "Failed";
> +		break;
> +	}
> +
> +	dev_warn(&ocxlpmem->dev, "%s: %s (%x)\n", message, text, status);
> +}
> diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h b/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
> index ba0301533d00..2fef68c71271 100644
> --- a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
> +++ b/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
> @@ -7,6 +7,7 @@
>   #include <linux/mm.h>
>   
>   #define LABEL_AREA_SIZE	(1UL << PA_SECTION_SHIFT)
> +#define DEFAULT_TIMEOUT 100
>   
>   #define GLOBAL_MMIO_CHI		0x000
>   #define GLOBAL_MMIO_CHIC	0x008
> @@ -80,6 +81,16 @@
>   #define STATUS_FW_ARG_INVALID	0x51
>   #define STATUS_FW_INVALID	0x52
>   
> +struct command_metadata {
> +	u32 request_offset;
> +	u32 response_offset;
> +	u32 data_offset;
> +	u32 data_size;
> +	struct mutex lock;
> +	u16 id;
> +	u8 op_code;
> +};
> +
>   struct ocxlpmem_function0 {
>   	struct pci_dev *pdev;
>   	struct ocxl_fn *ocxl_fn;
> @@ -95,9 +106,11 @@ struct ocxlpmem {
>   	struct ocxl_afu *ocxl_afu;
>   	struct ocxl_context *ocxl_context;
>   	void *metadata_addr;
> +	struct command_metadata admin_command;
>   	struct resource pmem_res;
>   	struct nd_region *nd_region;
>   	char fw_version[8+1];
> +	u32 timeouts[ADMIN_COMMAND_MAX+1];
>   
>   	u32 max_controller_dump_size;
>   	u16 scm_revision; // major/minor
> @@ -122,3 +135,51 @@ struct ocxlpmem {
>    * Returns 0 on success, negative on error
>    */
>   int ocxlpmem_chi(const struct ocxlpmem *ocxlpmem, u64 *chi);
> +
> +/**
> + * admin_command_request() - Issue an admin command request
> + * @ocxlpmem: the device metadata
> + * @op_code: The op-code for the command
> + *
> + * Returns an identifier for the command, or negative on error
> + */
> +int admin_command_request(struct ocxlpmem *ocxlpmem, u8 op_code);
> +
> +/**
> + * admin_response() - Validate an admin response
> + * @ocxlpmem: the device metadata
> + * Returns the status code of the command, or negative on error
> + */
> +int admin_response(const struct ocxlpmem *ocxlpmem);
> +
> +/**
> + * admin_command_execute() - Notify the controller to start processing a pending admin command
> + * @ocxlpmem: the device metadata
> + * Returns 0 on success, negative on error
> + */
> +int admin_command_execute(const struct ocxlpmem *ocxlpmem);
> +
> +/**
> + * admin_command_complete_timeout() - Wait for an admin command to finish executing
> + * @ocxlpmem: the device metadata
> + * @command: the admin command to wait for completion (determines the timeout)
> + * Returns 0 on success, -EBUSY on timeout
> + */
> +int admin_command_complete_timeout(const struct ocxlpmem *ocxlpmem,
> +				   int command);
> +
> +/**
> + * admin_response_handled() - Notify the controller that the admin response has been handled
> + * @ocxlpmem: the device metadata
> + * Returns 0 on success, negative on failure
> + */
> +int admin_response_handled(const struct ocxlpmem *ocxlpmem);
> +
> +/**
> + * warn_status() - Emit a kernel warning showing a command status.
> + * @ocxlpmem: the device metadata
> + * @message: A message to accompany the warning
> + * @status: The command status
> + */
> +void warn_status(const struct ocxlpmem *ocxlpmem, const char *message,
> +		 u8 status);
> 

-- 
Andrew Donnellan              OzLabs, ADL Canberra
ajd@linux.ibm.com             IBM Australia Limited
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  reply	other threads:[~2020-02-27  8:22 UTC|newest]

Thread overview: 130+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-21  3:26 [PATCH v3 00/27] Add support for OpenCAPI Persistent Memory devices Alastair D'Silva
2020-02-21  3:26 ` [PATCH v3 01/27] powerpc: Add OPAL calls for LPC memory alloc/release Alastair D'Silva
2020-02-24  5:49   ` Andrew Donnellan
2020-02-24  5:50     ` Alastair D'Silva
2020-02-21  3:26 ` [PATCH v3 02/27] mm/memory_hotplug: Allow check_hotplug_memory_addressable to be called from drivers Alastair D'Silva
2020-02-21  7:03   ` Andrew Donnellan
2020-02-21  3:26 ` [PATCH v3 03/27] powerpc: Map & release OpenCAPI LPC memory Alastair D'Silva
2020-02-24  2:51   ` Andrew Donnellan
2020-02-24  5:49     ` Andrew Donnellan
2020-02-25 10:02   ` Frederic Barrat
2020-02-26  0:19     ` Alastair D'Silva
2020-03-03  6:10   ` Andrew Donnellan
2020-03-04  5:33     ` Alastair D'Silva
2020-02-21  3:26 ` [PATCH v3 04/27] ocxl: Remove unnecessary externs Alastair D'Silva
2020-02-21  6:06   ` Andrew Donnellan
2020-02-25 13:23   ` Frederic Barrat
2020-02-26  8:14   ` Baoquan He
2020-02-26  8:26     ` Alastair D'Silva
2020-02-26  9:01       ` Greg Kurz
2020-02-26 14:15         ` 'Baoquan He'
2020-02-26 14:20           ` Greg Kurz
2020-02-26 14:54             ` 'Baoquan He'
2020-02-21  3:26 ` [PATCH v3 05/27] ocxl: Address kernel doc errors & warnings Alastair D'Silva
2020-02-24  2:11   ` Andrew Donnellan
2020-02-21  3:26 ` [PATCH v3 06/27] ocxl: Tally up the LPC memory on a link & allow it to be mapped Alastair D'Silva
2020-02-24  5:25   ` Andrew Donnellan
2020-02-24  5:36     ` Alastair D'Silva
2020-02-25 16:30   ` Frederic Barrat
2020-02-26  0:29     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 07/27] ocxl: Add functions to map/unmap LPC memory Alastair D'Silva
2020-02-24  6:02   ` Andrew Donnellan
2020-02-24  6:08     ` Alastair D'Silva
2020-02-25 17:01   ` Frederic Barrat
2020-02-21  3:27 ` [PATCH v3 08/27] ocxl: Emit a log message showing how much LPC memory was detected Alastair D'Silva
2020-02-24  6:06   ` Andrew Donnellan
2020-02-24  6:10     ` Alastair D'Silva
2020-02-24  6:13       ` Andrew Donnellan
2020-02-25 17:03   ` Frederic Barrat
2020-02-21  3:27 ` [PATCH v3 09/27] ocxl: Save the device serial number in ocxl_fn Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 10/27] powerpc: Add driver for OpenCAPI Persistent Memory Alastair D'Silva
2020-02-26  5:07   ` Andrew Donnellan
2020-02-26  5:49     ` Alastair D'Silva
2020-02-27 20:44   ` Frederic Barrat
2020-02-28  0:54     ` Alastair D'Silva
2020-02-28 18:32   ` Frederic Barrat
2020-02-21  3:27 ` [PATCH v3 11/27] powerpc: Enable the OpenCAPI Persistent Memory driver for powernv_defconfig Alastair D'Silva
2020-02-25  3:01   ` Andrew Donnellan
2020-02-21  3:27 ` [PATCH v3 12/27] powerpc/powernv/pmem: Add register addresses & status values to the header Alastair D'Silva
2020-02-27  5:08   ` Andrew Donnellan
2020-02-27  5:16     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 13/27] powerpc/powernv/pmem: Read the capability registers & wait for device ready Alastair D'Silva
2020-02-27  3:54   ` Andrew Donnellan
2020-02-27  3:58     ` Alastair D'Silva
2020-03-02 17:51   ` Frederic Barrat
2020-03-04  4:15     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 14/27] powerpc/powernv/pmem: Add support for Admin commands Alastair D'Silva
2020-02-27  8:22   ` Andrew Donnellan [this message]
2020-02-27  8:27     ` Andrew Donnellan
2020-02-27 23:54       ` Alastair D'Silva
2020-02-27 23:51     ` Alastair D'Silva
2020-02-27 17:01   ` Dan Williams
2020-02-27 23:57     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 15/27] powerpc/powernv/pmem: Add support for near storage commands Alastair D'Silva
2020-02-27  8:30   ` Andrew Donnellan
2020-02-27 23:56     ` Alastair D'Silva
2020-02-27 17:02   ` Dan Williams
2020-03-02 17:58   ` Frederic Barrat
2020-03-02 18:42     ` Dan Williams
2020-03-04  4:42       ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 16/27] powerpc/powernv/pmem: Register a character device for userspace to interact with Alastair D'Silva
2020-03-02  5:34   ` Andrew Donnellan
2020-03-02  6:05     ` Alastair D'Silva
2020-03-03  9:28   ` Frederic Barrat
2020-03-05  3:38     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 17/27] powerpc/powernv/pmem: Implement the Read Error Log command Alastair D'Silva
2020-03-03 10:36   ` Frederic Barrat
2020-03-05  4:31     ` Alastair D'Silva
2020-03-05  9:33       ` Frederic Barrat
2020-03-04  5:58   ` Andrew Donnellan
2020-02-21  3:27 ` [PATCH v3 18/27] powerpc/powernv/pmem: Add controller dump IOCTLs Alastair D'Silva
2020-03-03 18:04   ` Frederic Barrat
2020-03-05 23:37     ` Alastair D'Silva
2020-03-04  6:53   ` Andrew Donnellan
2020-03-06  3:34     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 19/27] powerpc/powernv/pmem: Add an IOCTL to report controller statistics Alastair D'Silva
2020-03-04  9:25   ` Frederic Barrat
2020-03-12  0:15     ` Alastair D'Silva
2020-03-05  0:46   ` Andrew Donnellan
2020-03-12  4:47     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 20/27] powerpc/powernv/pmem: Forward events to userspace Alastair D'Silva
2020-03-03  7:02   ` Andrew Donnellan
2020-03-04  5:48     ` Alastair D'Silva
2020-03-04 11:00   ` Frederic Barrat
2020-03-11  3:32     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 21/27] powerpc/powernv/pmem: Add an IOCTL to request controller health & perf data Alastair D'Silva
2020-02-28  6:12   ` Andrew Donnellan
2020-03-02  5:40     ` Alastair D'Silva
2020-03-04 11:06     ` Frederic Barrat
2020-03-11  3:38       ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 22/27] powerpc/powernv/pmem: Implement the heartbeat command Alastair D'Silva
2020-02-28  6:20   ` Andrew Donnellan
2020-03-04 14:25   ` Frederic Barrat
2020-02-21  3:27 ` [PATCH v3 23/27] powerpc/powernv/pmem: Add debug IOCTLs Alastair D'Silva
2020-03-04 15:21   ` Frederic Barrat
2020-03-12  4:24     ` Alastair D'Silva
2020-03-05  3:11   ` Andrew Donnellan
2020-03-12  4:58     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 24/27] powerpc/powernv/pmem: Expose SMART data via ndctl Alastair D'Silva
2020-03-04 15:40   ` Frederic Barrat
2020-03-05  3:36   ` Andrew Donnellan
2020-03-12 23:14     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 25/27] powerpc/powernv/pmem: Expose the serial number in sysfs Alastair D'Silva
2020-02-28  6:25   ` Andrew Donnellan
2020-02-28  7:15     ` Greg Kroah-Hartman
2020-03-01 23:42       ` Alastair D'Silva
2020-03-02  5:38         ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 26/27] powerpc/powernv/pmem: Expose the firmware version " Alastair D'Silva
2020-03-02  7:35   ` Andrew Donnellan
2020-03-04  4:11     ` Alastair D'Silva
2020-02-21  3:27 ` [PATCH v3 27/27] MAINTAINERS: Add myself & nvdimm/ocxl to ocxl Alastair D'Silva
2020-02-21  5:35   ` Andrew Donnellan
2020-02-21 16:21 ` [PATCH v3 00/27] Add support for OpenCAPI Persistent Memory devices Dan Williams
2020-02-21 16:24   ` Dan Williams
2020-02-24  4:34   ` Alastair D'Silva
2020-02-24  4:37     ` Matthew Wilcox
2020-02-24  4:42       ` Alastair D'Silva
2020-02-24  6:51         ` Oliver O'Halloran
2020-02-26  0:13           ` Alastair D'Silva
2020-02-26  0:32             ` Dan Williams
2020-02-26  0:35               ` Alastair D'Silva

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