Linux-mm Archive on lore.kernel.org
 help / color / Atom feed
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Alastair D'Silva <alastair@au1.ibm.com>
Cc: alastair@d-silva.org,
	"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
	"Paul Mackerras" <paulus@samba.org>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Frederic Barrat" <fbarrat@linux.ibm.com>,
	"Andrew Donnellan" <ajd@linux.ibm.com>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Dan Williams" <dan.j.williams@intel.com>,
	"Vishal Verma" <vishal.l.verma@intel.com>,
	"Dave Jiang" <dave.jiang@intel.com>,
	"Keith Busch" <keith.busch@intel.com>,
	"Ira Weiny" <ira.weiny@intel.com>,
	"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, linuxppc-dev@lists.ozlabs.org,
	linux-nvdimm@lists.01.org, linux-mm@kvack.org
Subject: Re: [PATCH v2 13/27] nvdimm/ocxl: Add support for Admin commands
Date: Mon, 3 Feb 2020 14:18:46 +0000
Message-ID: <20200203141846.00004981@Huawei.com> (raw)
In-Reply-To: <20191203034655.51561-14-alastair@au1.ibm.com>

On Tue, 3 Dec 2019 14:46:41 +1100
Alastair D'Silva <alastair@au1.ibm.com> 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>

A few trivial bits inline.

Jonathan

> ---
>  drivers/nvdimm/ocxl/scm.c          |  67 +++++++++++++
>  drivers/nvdimm/ocxl/scm_internal.c | 152 +++++++++++++++++++++++++++++
>  drivers/nvdimm/ocxl/scm_internal.h |  62 ++++++++++++
>  3 files changed, 281 insertions(+)
> 
> diff --git a/drivers/nvdimm/ocxl/scm.c b/drivers/nvdimm/ocxl/scm.c
> index 8088f65c289e..1e175f3c3cf2 100644
> --- a/drivers/nvdimm/ocxl/scm.c
> +++ b/drivers/nvdimm/ocxl/scm.c
> @@ -267,6 +267,58 @@ static int scm_register_lpc_mem(struct scm_data *scm_data)
>  	return 0;
>  }
>  
> +/**
> + * scm_extract_command_metadata() - Extract command data from MMIO & save it for further use
> + * @scm_data: a pointer to the SCM device data
> + * @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 scm_extract_command_metadata(struct scm_data *scm_data, u32 offset,
> +					struct command_metadata *command_metadata)
> +{
> +	int rc;
> +	u64 tmp;
> +
> +	rc = ocxl_global_mmio_read64(scm_data->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(scm_data->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;
> +}
> +
> +/**
> + * scm_setup_command_metadata() - Set up the command metadata
> + * @scm_data: a pointer to the SCM device data
> + */
> +static int scm_setup_command_metadata(struct scm_data *scm_data)
> +{
> +	int rc;
> +
> +	mutex_init(&scm_data->admin_command.lock);
> +
> +	rc = scm_extract_command_metadata(scm_data, GLOBAL_MMIO_ACMA_CREQO,
> +					  &scm_data->admin_command);
> +	if (rc)
> +		return rc;

Unless you are adding to this later in the series.

	return scm_extract_command_metadata(scm_data,...)

> +
> +	return 0;
> +}
> +
>  /**
>   * scm_is_usable() - Is a controller usable?
>   * @scm_data: a pointer to the SCM device data
> @@ -276,6 +328,8 @@ static bool scm_is_usable(const struct scm_data *scm_data)
>  {
>  	u64 chi = 0;
>  	int rc = scm_chi(scm_data, &chi);
> +	if (rc)
> +		return false;
>  
>  	if (!(chi & GLOBAL_MMIO_CHI_CRDY)) {
>  		dev_err(&scm_data->dev, "SCM controller is not ready.\n");
> @@ -502,6 +556,14 @@ static int scm_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  	}
>  	scm_data->pdev = pdev;
>  
> +	scm_data->timeouts[ADMIN_COMMAND_ERRLOG] = 2000; // ms
> +	scm_data->timeouts[ADMIN_COMMAND_HEARTBEAT] = 100; // ms
> +	scm_data->timeouts[ADMIN_COMMAND_SMART] = 100; // ms
> +	scm_data->timeouts[ADMIN_COMMAND_CONTROLLER_DUMP] = 1000; // ms
> +	scm_data->timeouts[ADMIN_COMMAND_CONTROLLER_STATS] = 100; // ms
> +	scm_data->timeouts[ADMIN_COMMAND_SHUTDOWN] = 1000; // ms
> +	scm_data->timeouts[ADMIN_COMMAND_FW_UPDATE] = 16000; // ms
> +
>  	pci_set_drvdata(pdev, scm_data);
>  
>  	scm_data->ocxl_fn = ocxl_function_open(pdev);
> @@ -543,6 +605,11 @@ static int scm_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  		goto err;
>  	}
>  
> +	if (scm_setup_command_metadata(scm_data)) {
> +		dev_err(&pdev->dev, "Could not read OCXL command matada\n");
> +		goto err;
> +	}
> +
>  	elapsed = 0;
>  	timeout = scm_data->readiness_timeout + scm_data->memory_available_timeout;
>  	while (!scm_is_usable(scm_data)) {
> diff --git a/drivers/nvdimm/ocxl/scm_internal.c b/drivers/nvdimm/ocxl/scm_internal.c
> index 72d3c0e7d846..7b11b56863fb 100644
> --- a/drivers/nvdimm/ocxl/scm_internal.c
> +++ b/drivers/nvdimm/ocxl/scm_internal.c
> @@ -17,3 +17,155 @@ int scm_chi(const struct scm_data *scm_data, u64 *chi)
>  
>  	return 0;
>  }
> +
> +static int scm_command_request(const struct scm_data *scm_data,
> +			       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(scm_data->ocxl_afu, cmd->request_offset,
> +				      OCXL_LITTLE_ENDIAN, val);
> +	if (rc)
> +		return rc;
> +
> +	for (i = 0x08; i <= 0x38; i += 0x08) {

perhaps use sizeof(u64) to explain where the 0x08s come from.
For the 0x38, might be worth a define.

> +		rc = ocxl_global_mmio_write64(scm_data->ocxl_afu,
> +					      cmd->request_offset + i,
> +					      OCXL_LITTLE_ENDIAN, 0);
> +		if (rc)
> +			return rc;
> +	}
> +
> +	return 0;
> +}
> +
> +int scm_admin_command_request(struct scm_data *scm_data, u8 op_code)
> +{
> +	u64 val;
> +	int rc = ocxl_global_mmio_read64(scm_data->ocxl_afu, GLOBAL_MMIO_CHI,
> +					 OCXL_LITTLE_ENDIAN, &val);
> +	if (rc)
> +		return rc;
> +
> +	return scm_command_request(scm_data, &scm_data->admin_command, op_code);
> +}
> +
> +static int scm_command_response(const struct scm_data *scm_data,
> +			 const struct command_metadata *cmd)
> +{
> +	u64 val;
> +	u16 id;
> +	u8 status;
> +	int rc = ocxl_global_mmio_read64(scm_data->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(&scm_data->dev,
> +			 "Expected response for command %d, but received response for command %d instead.\n",
> +			 cmd->id, id);
> +	}
> +
> +	return status;
> +}
> +
> +int scm_admin_response(const struct scm_data *scm_data)
> +{
> +	return scm_command_response(scm_data, &scm_data->admin_command);
> +}
> +
> +
> +int scm_admin_command_execute(const struct scm_data *scm_data)
> +{
> +	return ocxl_global_mmio_set64(scm_data->ocxl_afu, GLOBAL_MMIO_HCI,
> +				      OCXL_LITTLE_ENDIAN, GLOBAL_MMIO_HCI_ACRW);
> +}
> +
> +static bool scm_admin_command_complete(const struct scm_data *scm_data)
> +{
> +	u64 val = 0;
> +
> +	int rc = scm_chi(scm_data, &val);
> +
> +	WARN_ON(rc);
> +
> +	return (val & GLOBAL_MMIO_CHI_ACRA) != 0;
> +}
> +
> +int scm_admin_command_complete_timeout(const struct scm_data *scm_data,
> +				       int command)
> +{
> +	u32 timeout = scm_data->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 = SCM_DEFAULT_TIMEOUT / TIMEOUT_SLEEP_MILLIS;
> +
> +	while (timeout-- > 0) {
> +		if (scm_admin_command_complete(scm_data))
> +			return 0;
> +		msleep(TIMEOUT_SLEEP_MILLIS);
> +	}
> +
> +	if (scm_admin_command_complete(scm_data))
> +		return 0;
> +
> +	return -EBUSY;
> +}
> +
> +int scm_admin_response_handled(const struct scm_data *scm_data)
> +{
> +	return ocxl_global_mmio_set64(scm_data->ocxl_afu, GLOBAL_MMIO_CHIC,
> +				      OCXL_LITTLE_ENDIAN, GLOBAL_MMIO_CHI_ACRA);
> +}
> +
> +void scm_warn_status(const struct scm_data *scm_data, 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(&scm_data->dev, "%s: %s (%x)\n", message, text, status);
> +}
> diff --git a/drivers/nvdimm/ocxl/scm_internal.h b/drivers/nvdimm/ocxl/scm_internal.h
> index 584450f55e30..9bff684cd069 100644
> --- a/drivers/nvdimm/ocxl/scm_internal.h
> +++ b/drivers/nvdimm/ocxl/scm_internal.h
> @@ -6,6 +6,8 @@
>  #include <linux/libnvdimm.h>
>  #include <linux/mm.h>
>  
> +#define SCM_DEFAULT_TIMEOUT 100
> +
>  #define GLOBAL_MMIO_CHI		0x000
>  #define GLOBAL_MMIO_CHIC	0x008
>  #define GLOBAL_MMIO_CHIE	0x010
> @@ -80,6 +82,16 @@
>  
>  #define SCM_LABEL_AREA_SIZE	(1UL << PA_SECTION_SHIFT)
>  
> +struct command_metadata {
> +	u32 request_offset;
> +	u32 response_offset;
> +	u32 data_offset;
> +	u32 data_size;
> +	struct mutex lock;
> +	u16 id;
> +	u8 op_code;
> +};
> +
>  struct scm_function_0 {
>  	struct pci_dev *pdev;
>  	struct ocxl_fn *ocxl_fn;
> @@ -95,9 +107,11 @@ struct scm_data {
>  	struct ocxl_afu *ocxl_afu;
>  	struct ocxl_context *ocxl_context;
>  	void *metadata_addr;
> +	struct command_metadata admin_command;
>  	struct resource scm_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 +136,51 @@ struct scm_data {
>   * Returns 0 on success, negative on error
>   */
>  int scm_chi(const struct scm_data *scm_data, u64 *chi);
> +
> +/**
> + * scm_admin_command_request() - Issue an admin command request
> + * @scm_data: a pointer to the SCM device data
> + * @op_code: The op-code for the command
> + *
> + * Returns an identifier for the command, or negative on error
> + */
> +int scm_admin_command_request(struct scm_data *scm_data, u8 op_code);
> +
> +/**
> + * scm_admin_response() - Validate an admin response
> + * @scm_data: a pointer to the SCM device data
> + * Returns the status code of the command, or negative on error
> + */
> +int scm_admin_response(const struct scm_data *scm_data);
> +
> +/**
> + * scm_admin_command_execute() - Notify the controller to start processing a pending admin command
> + * @scm_data: a pointer to the SCM device data
> + * Returns 0 on success, negative on error
> + */
> +int scm_admin_command_execute(const struct scm_data *scm_data);
> +
> +/**
> + * scm_admin_command_complete_timeout() - Wait for an admin command to finish executing
> + * @scm_data: a pointer to the SCM device data
> + * @command: the admin command to wait for completion (determines the timeout)
> + * Returns 0 on success, -EBUSY on timeout
> + */
> +int scm_admin_command_complete_timeout(const struct scm_data *scm_data,
> +				       int command);
> +
> +/**
> + * scm_admin_response_handled() - Notify the controller that the admin response has been handled
> + * @scm_data: a pointer to the SCM device data
> + * Returns 0 on success, negative on failure
> + */
> +int scm_admin_response_handled(const struct scm_data *scm_data);
> +
> +/**
> + * scm_warn_status() - Emit a kernel warning showing a command status.
> + * @scm_data: a pointer to the SCM device data
> + * @message: A message to accompany the warning
> + * @status: The command status
> + */
> +void scm_warn_status(const struct scm_data *scm_data, const char *message,
> +		     u8 status);




  reply index

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-03  3:46 [PATCH v2 00/27] Add support for OpenCAPI SCM devices Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 01/27] memory_hotplug: Add a bounds check to __add_pages Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 02/27] nvdimm: remove prototypes for nonexistent functions Alastair D'Silva
2019-12-03  4:47   ` Andrew Donnellan
2019-12-04  0:10   ` Dan Williams
2020-01-23 21:49     ` Dan Williams
2019-12-03  3:46 ` [PATCH v2 03/27] powerpc: Add OPAL calls for LPC memory alloc/release Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 04/27] mm/memory_hotplug: Allow check_hotplug_memory_addressable to be called from drivers Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 05/27] powerpc: Map & release OpenCAPI LPC memory Alastair D'Silva
2020-01-09 14:41   ` Frederic Barrat
2020-01-21  6:46   ` Andrew Donnellan
2020-01-21  7:11     ` Greg Kurz
2020-02-14 11:09   ` Frederic Barrat
2020-02-18 23:44     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 06/27] ocxl: Tally up the LPC memory on a link & allow it to be mapped Alastair D'Silva
2020-01-09 14:48   ` Frederic Barrat
2020-02-03 12:37   ` Jonathan Cameron
2020-02-19  0:01     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 07/27] ocxl: Add functions to map/unmap LPC memory Alastair D'Silva
2020-01-09 14:49   ` Frederic Barrat
2020-02-03 12:49   ` Jonathan Cameron
2020-02-19  2:39     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 08/27] ocxl: Save the device serial number in ocxl_fn Alastair D'Silva
2020-02-03 12:53   ` Jonathan Cameron
2020-02-19  4:03     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 09/27] ocxl: Free detached contexts in ocxl_context_detach_all() Alastair D'Silva
2020-01-09 14:54   ` Frederic Barrat
2019-12-03  3:46 ` [PATCH v2 10/27] nvdimm: Add driver for OpenCAPI Storage Class Memory Alastair D'Silva
2019-12-03  5:05   ` Alastair D'Silva
2020-02-03 13:20   ` Jonathan Cameron
2020-02-19  4:40     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 11/27] nvdimm/ocxl: Add register addresses & status values to header Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 12/27] nvdimm/ocxl: Read the capability registers & wait for device ready Alastair D'Silva
2020-02-03 13:23   ` Jonathan Cameron
2020-02-19  4:46     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 13/27] nvdimm/ocxl: Add support for Admin commands Alastair D'Silva
2020-02-03 14:18   ` Jonathan Cameron [this message]
2020-02-19  5:00     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 14/27] nvdimm/ocxl: Add support for near storage commands Alastair D'Silva
2020-02-03 14:22   ` Jonathan Cameron
2020-02-19  4:54     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 15/27] nvdimm/ocxl: Register a character device for userspace to interact with Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 16/27] nvdimm/ocxl: Implement the Read Error Log command Alastair D'Silva
2019-12-05  3:42   ` Alastair D'Silva
2019-12-05 19:34   ` kbuild test robot
2019-12-03  3:46 ` [PATCH v2 17/27] nvdimm/ocxl: Add controller dump IOCTLs Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 18/27] nvdimm/ocxl: Add an IOCTL to report controller statistics Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 19/27] nvdimm/ocxl: Forward events to userspace Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 20/27] nvdimm/ocxl: Add an IOCTL to request controller health & perf data Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 21/27] nvdimm/ocxl: Support firmware update via sysfs Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 22/27] nvdimm/ocxl: Implement the heartbeat command Alastair D'Silva
2020-02-03 15:11   ` Jonathan Cameron
2020-02-19  5:02     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 23/27] nvdimm/ocxl: Add debug IOCTLs Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 24/27] nvdimm/ocxl: Implement Overwrite Alastair D'Silva
2020-02-03 15:10   ` Jonathan Cameron
2020-02-19  5:13     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 25/27] nvdimm/ocxl: Expose SMART data via ndctl Alastair D'Silva
2019-12-16  0:15   ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 26/27] powerpc: Enable OpenCAPI Storage Class Memory driver on bare metal Alastair D'Silva
2019-12-03  4:54   ` Andrew Donnellan
2019-12-03  4:57     ` Alastair D'Silva
2019-12-03  3:46 ` [PATCH v2 27/27] MAINTAINERS: Add myself & nvdimm/ocxl to ocxl Alastair D'Silva
2019-12-03  3:50 ` [PATCH v2 00/27] Add support for OpenCAPI SCM devices Matthew Wilcox
2019-12-03  4:01   ` Alastair D'Silva
2019-12-03 12:42     ` Matthew Wilcox
2019-12-04  0:15       ` Dan Williams

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200203141846.00004981@Huawei.com \
    --to=jonathan.cameron@huawei.com \
    --cc=aik@ozlabs.ru \
    --cc=ajd@linux.ibm.com \
    --cc=akpm@linux-foundation.org \
    --cc=alastair@au1.ibm.com \
    --cc=alastair@d-silva.org \
    --cc=anju@linux.vnet.ibm.com \
    --cc=anton@ozlabs.org \
    --cc=arnd@arndb.de \
    --cc=benh@kernel.crashing.org \
    --cc=clg@kaod.org \
    --cc=dan.j.williams@intel.com \
    --cc=dave.jiang@intel.com \
    --cc=davem@davemloft.net \
    --cc=fbarrat@linux.ibm.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=groug@kaod.org \
    --cc=hbathini@linux.ibm.com \
    --cc=ira.weiny@intel.com \
    --cc=keith.busch@intel.com \
    --cc=krzk@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-nvdimm@lists.01.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=maddy@linux.vnet.ibm.com \
    --cc=mahesh@linux.vnet.ibm.com \
    --cc=mchehab+samsung@kernel.org \
    --cc=mpe@ellerman.id.au \
    --cc=npiggin@gmail.com \
    --cc=paulus@samba.org \
    --cc=robh@kernel.org \
    --cc=tglx@linutronix.de \
    --cc=vishal.l.verma@intel.com \
    --cc=yamada.masahiro@socionext.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-mm Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-mm/0 linux-mm/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-mm linux-mm/ https://lore.kernel.org/linux-mm \
		linux-mm@kvack.org
	public-inbox-index linux-mm

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kvack.linux-mm


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git