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>,
"Oliver O'Halloran" <oohall@gmail.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>,
"Dan Williams" <dan.j.williams@intel.com>,
"Vishal Verma" <vishal.l.verma@intel.com>,
"Dave Jiang" <dave.jiang@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 v3 17/27] powerpc/powernv/pmem: Implement the Read Error Log command
Date: Wed, 4 Mar 2020 16:58:25 +1100 [thread overview]
Message-ID: <82ef4aa2-a364-1a85-68dc-699fd38407a7@linux.ibm.com> (raw)
In-Reply-To: <20200221032720.33893-18-alastair@au1.ibm.com>
On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@d-silva.org>
>
> The read error log command extracts information from the controller's
> internal error log.
>
> This patch exposes this information in 2 ways:
> - During probe, if an error occurs & a log is available, print it to the
> console
> - After probe, make the error log available to userspace via an IOCTL.
> Userspace is notified of pending error logs in a later patch
> ("powerpc/powernv/pmem: Forward events to userspace")
>
> Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
A few minor style checks at
https://openpower.xyz/job/snowpatch/job/snowpatch-linux-checkpatch/11787//artifact/linux/checkpatch.log
We should also add some documentation for the user interfaces we're
adding (same applies for all the remaining patches in this series that
add more interfaces).
> ---
> arch/powerpc/platforms/powernv/pmem/ocxl.c | 269 ++++++++++++++++++
> .../platforms/powernv/pmem/ocxl_internal.h | 1 +
> include/uapi/nvdimm/ocxl-pmem.h | 46 +++
> 3 files changed, 316 insertions(+)
> create mode 100644 include/uapi/nvdimm/ocxl-pmem.h
>
> diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl.c b/arch/powerpc/platforms/powernv/pmem/ocxl.c
> index 63109a870d2c..2b64504f9129 100644
> --- a/arch/powerpc/platforms/powernv/pmem/ocxl.c
> +++ b/arch/powerpc/platforms/powernv/pmem/ocxl.c
> @@ -447,10 +447,219 @@ static int file_release(struct inode *inode, struct file *file)
> return 0;
> }
>
> +/**
> + * error_log_header_parse() - Parse the first 64 bits of the error log command response
> + * @ocxlpmem: the device metadata
> + * @length: out, returns the number of bytes in the response (excluding the 64 bit header)
> + */
> +static int error_log_header_parse(struct ocxlpmem *ocxlpmem, u16 *length)
> +{
> + int rc;
> + u64 val;
> +
> + u16 data_identifier;
> + u32 data_length;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset,
> + OCXL_LITTLE_ENDIAN, &val);
> + if (rc)
> + return rc;
> +
> + data_identifier = val >> 48;
> + data_length = val & 0xFFFF;
> +
> + if (data_identifier != 0x454C) { // 'EL'
> + dev_err(&ocxlpmem->dev,
> + "Bad data identifier for error log data, expected 'EL', got '%2s' (%#x), data_length=%u\n",
> + (char *)&data_identifier,
> + (unsigned int)data_identifier, data_length);
> + return -EINVAL;
This should be something other than EINVAL I think
> + }
> +
> + *length = data_length;
> + return 0;
> +}
> +
> +static int error_log_offset_0x08(struct ocxlpmem *ocxlpmem,
> + u32 *log_identifier, u32 *program_ref_code)
> +{
> + int rc;
> + u64 val;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + 0x08,
> + OCXL_LITTLE_ENDIAN, &val);
> + if (rc)
> + return rc;
> +
> + *log_identifier = val >> 32;
> + *program_ref_code = val & 0xFFFFFFFF;
> +
> + return 0;
> +}
> +
> +static int read_error_log(struct ocxlpmem *ocxlpmem,
> + struct ioctl_ocxl_pmem_error_log *log, bool buf_is_user)
> +{
> + u64 val;
> + u16 user_buf_length;
> + u16 buf_length;
> + u16 i;
> + int rc;
> +
> + if (log->buf_size % 8)
> + return -EINVAL;
> +
> + rc = ocxlpmem_chi(ocxlpmem, &val);
> + if (rc)
> + goto out;
> +
> + if (!(val & GLOBAL_MMIO_CHI_ELA))
> + return -EAGAIN;
> +
> + user_buf_length = log->buf_size;
> +
> + mutex_lock(&ocxlpmem->admin_command.lock);
> +
> + rc = admin_command_request(ocxlpmem, ADMIN_COMMAND_ERRLOG);
> + if (rc)
> + goto out;
> +
> + rc = admin_command_execute(ocxlpmem);
> + if (rc)
> + goto out;
> +
> + rc = admin_command_complete_timeout(ocxlpmem, ADMIN_COMMAND_ERRLOG);
> + if (rc < 0) {
> + dev_warn(&ocxlpmem->dev, "Read error log timed out\n");
> + goto out;
> + }
> +
> + rc = admin_response(ocxlpmem);
> + if (rc < 0)
> + goto out;
> + if (rc != STATUS_SUCCESS) {
> + warn_status(ocxlpmem, "Unexpected status from retrieve error log", rc);
> + goto out;
> + }
> +
> +
> + rc = error_log_header_parse(ocxlpmem, &log->buf_size);
> + if (rc)
> + goto out;
> + // log->buf_size now contains the returned buffer size, not the user size
In the event that the log is truncated to fit the user buffer, we return
the full log size, I assume this is intentional to signal it's truncated
as per the nd stuff?
> +
> + rc = error_log_offset_0x08(ocxlpmem, &log->log_identifier,
> + &log->program_reference_code);
> + if (rc)
> + goto out;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + 0x10,
> + OCXL_LITTLE_ENDIAN, &val);
> + if (rc)
> + goto out;
> +
> + log->error_log_type = val >> 56;
> + log->action_flags = (log->error_log_type == OCXL_PMEM_ERROR_LOG_TYPE_GENERAL) ?
> + (val >> 32) & 0xFFFFFF : 0;
> + log->power_on_seconds = val & 0xFFFFFFFF;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + 0x18,
> + OCXL_LITTLE_ENDIAN, &log->timestamp);
> + if (rc)
> + goto out;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + 0x20,
> + OCXL_HOST_ENDIAN, &log->wwid[0]);
> + if (rc)
> + goto out;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + 0x28,
> + OCXL_HOST_ENDIAN, &log->wwid[1]);
> + if (rc)
> + goto out;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + 0x30,
> + OCXL_HOST_ENDIAN, (u64 *)log->fw_revision);
Why the difference between HOST and LITTLE_ENDIAN between these fields?
> + if (rc)
> + goto out;
> + log->fw_revision[8] = '\0';
> +
> + buf_length = (user_buf_length < log->buf_size) ?
> + user_buf_length : log->buf_size;
> + for (i = 0; i < buf_length + 0x48; i += 8) {
+ 0x48 here doesn't look right...
> + u64 val;
> +
> + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu,
> + ocxlpmem->admin_command.data_offset + i,
...did you mean to add 0x48 here?
> + OCXL_HOST_ENDIAN, &val);
> + if (rc)
> + goto out;
> +
> + if (buf_is_user) {
> + if (copy_to_user(&log->buf[i], &val, sizeof(u64))) {
> + rc = -EFAULT;
> + goto out;
> + }
> + } else
> + log->buf[i] = val;
Please use braces consistently on both sides of if/else.
> + }
> +
> + rc = admin_response_handled(ocxlpmem);
> + if (rc)
> + goto out;
> +
> +out:
> + mutex_unlock(&ocxlpmem->admin_command.lock);
> + return rc;
> +
> +}
> +
> +static int ioctl_error_log(struct ocxlpmem *ocxlpmem,
> + struct ioctl_ocxl_pmem_error_log __user *uarg)
> +{
> + struct ioctl_ocxl_pmem_error_log args;
> + int rc;
> +
> + if (copy_from_user(&args, uarg, sizeof(args)))
> + return -EFAULT;
> +
> + rc = read_error_log(ocxlpmem, &args, true);
> + if (rc)
> + return rc;
> +
> + if (copy_to_user(uarg, &args, sizeof(args)))
> + return -EFAULT;
> +
> + return 0;
> +}
> +
> +static long file_ioctl(struct file *file, unsigned int cmd, unsigned long args)
> +{
> + struct ocxlpmem *ocxlpmem = file->private_data;
> + int rc = -EINVAL;
> +
> + switch (cmd) {
> + case IOCTL_OCXL_PMEM_ERROR_LOG:
> + rc = ioctl_error_log(ocxlpmem,
> + (struct ioctl_ocxl_pmem_error_log __user *)args);
> + break;
> + }
> + return rc;
> +}
> +
> static const struct file_operations fops = {
> .owner = THIS_MODULE,
> .open = file_open,
> .release = file_release,
> + .unlocked_ioctl = file_ioctl,
> + .compat_ioctl = file_ioctl,
> };
>
> /**
> @@ -527,6 +736,60 @@ static int read_device_metadata(struct ocxlpmem *ocxlpmem)
> return 0;
> }
>
> +static const char *decode_error_log_type(u8 error_log_type)
> +{
> + switch (error_log_type) {
> + case 0x00:
> + return "general";
> + case 0x01:
> + return "predictive failure";
> + case 0x02:
> + return "thermal warning";
> + case 0x03:
> + return "data loss";
> + case 0x04:
> + return "health & performance";
> + default:
> + return "unknown";
> + }
> +}
> +
> +static void dump_error_log(struct ocxlpmem *ocxlpmem)
> +{
> + struct ioctl_ocxl_pmem_error_log log;
> + u32 buf_size;
> + u8 *buf;
> + int rc;
> +
> + if (ocxlpmem->admin_command.data_size == 0)
> + return;
> +
> + buf_size = ocxlpmem->admin_command.data_size - 0x48;
> + buf = kzalloc(buf_size, GFP_KERNEL);
> + if (!buf)
> + return;
> +
> + log.buf = buf;
> + log.buf_size = buf_size;
> +
> + rc = read_error_log(ocxlpmem, &log, false);
> + if (rc < 0)
> + goto out;
> +
> + dev_warn(&ocxlpmem->dev,
> + "OCXL PMEM Error log: WWID=0x%016llx%016llx LID=0x%x PRC=%x type=0x%x %s, Uptime=%u seconds timestamp=0x%llx\n",
> + log.wwid[0], log.wwid[1],
> + log.log_identifier, log.program_reference_code,
> + log.error_log_type,
> + decode_error_log_type(log.error_log_type),
> + log.power_on_seconds, log.timestamp);
> + print_hex_dump(KERN_WARNING, "buf", DUMP_PREFIX_OFFSET, 16, 1, buf,
> + log.buf_size, false); > +
> +out:
> + kfree(buf);
> +}
> +
> /**
> * probe_function0() - Set up function 0 for an OpenCAPI persistent memory device
> * This is important as it enables templates higher than 0 across all other functions,
> @@ -568,6 +831,7 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> struct ocxlpmem *ocxlpmem;
> int rc;
> u16 elapsed, timeout;
> + u64 chi;
>
> if (PCI_FUNC(pdev->devfn) == 0)
> return probe_function0(pdev);
> @@ -667,6 +931,11 @@ static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> return 0;
>
> err:
> + if (ocxlpmem &&
> + (ocxlpmem_chi(ocxlpmem, &chi) == 0) &&
> + (chi & GLOBAL_MMIO_CHI_ELA))
> + dump_error_log(ocxlpmem);
> +
> /*
> * Further cleanup is done in the release handler via free_ocxlpmem()
> * This allows us to keep the character device live to handle IOCTLs to
> diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h b/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
> index d2d81fec7bb1..b953ee522ed4 100644
> --- a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
> +++ b/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
> @@ -5,6 +5,7 @@
> #include <linux/cdev.h>
> #include <misc/ocxl.h>
> #include <linux/libnvdimm.h>
> +#include <uapi/nvdimm/ocxl-pmem.h>
> #include <linux/mm.h>
>
> #define LABEL_AREA_SIZE (1UL << PA_SECTION_SHIFT)
> diff --git a/include/uapi/nvdimm/ocxl-pmem.h b/include/uapi/nvdimm/ocxl-pmem.h
> new file mode 100644
> index 000000000000..b10f8ac0c20f
> --- /dev/null
> +++ b/include/uapi/nvdimm/ocxl-pmem.h
> @@ -0,0 +1,46 @@
> +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
> +/* Copyright 2017 IBM Corp. */
> +#ifndef _UAPI_OCXL_SCM_H
> +#define _UAPI_OCXL_SCM_H
> +
> +#include <linux/types.h>
> +#include <linux/ioctl.h>
> +
> +#define OCXL_PMEM_ERROR_LOG_ACTION_RESET (1 << (32-32))
> +#define OCXL_PMEM_ERROR_LOG_ACTION_CHKFW (1 << (53-32))
> +#define OCXL_PMEM_ERROR_LOG_ACTION_REPLACE (1 << (54-32))
> +#define OCXL_PMEM_ERROR_LOG_ACTION_DUMP (1 << (55-32))
> +
> +#define OCXL_PMEM_ERROR_LOG_TYPE_GENERAL (0x00)
> +#define OCXL_PMEM_ERROR_LOG_TYPE_PREDICTIVE_FAILURE (0x01)
> +#define OCXL_PMEM_ERROR_LOG_TYPE_THERMAL_WARNING (0x02)
> +#define OCXL_PMEM_ERROR_LOG_TYPE_DATA_LOSS (0x03)
> +#define OCXL_PMEM_ERROR_LOG_TYPE_HEALTH_PERFORMANCE (0x04)
> +
> +struct ioctl_ocxl_pmem_error_log {
> + __u32 log_identifier; /* out */
> + __u32 program_reference_code; /* out */
> + __u32 action_flags; /* out, recommended course of action */
> + __u32 power_on_seconds; /* out, Number of seconds the controller has been on when the error occurred */
> + __u64 timestamp; /* out, relative time since the current IPL */
> + __u64 wwid[2]; /* out, the NAA formatted WWID associated with the controller */
> + char fw_revision[8+1]; /* out, firmware revision as null terminated text */
> + __u16 buf_size; /* in/out, buffer size provided/required.
> + * If required is greater than provided, the buffer
> + * will be truncated to the amount provided. If its
> + * less, then only the required bytes will be populated.
> + * If it is 0, then there are no more error log entries.
> + */
> + __u8 error_log_type;
> + __u8 reserved1;
> + __u32 reserved2;
> + __u64 reserved3[2];
> + __u8 *buf; /* pointer to output buffer */
> +};
> +
> +/* ioctl numbers */
> +#define OCXL_PMEM_MAGIC 0x5C
> +/* SCM devices */
> +#define IOCTL_OCXL_PMEM_ERROR_LOG _IOWR(OCXL_PMEM_MAGIC, 0x01, struct ioctl_ocxl_pmem_error_log)
> +
> +#endif /* _UAPI_OCXL_SCM_H */
>
--
Andrew Donnellan OzLabs, ADL Canberra
ajd@linux.ibm.com IBM Australia Limited
next prev parent reply other threads:[~2020-03-04 5:58 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
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 [this message]
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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