From: "Alastair D'Silva" <alastair@au1.ibm.com>
To: Frederic Barrat <fbarrat@linux.ibm.com>
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>,
"Andrew Donnellan" <ajd@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 23/27] powerpc/powernv/pmem: Add debug IOCTLs
Date: Thu, 12 Mar 2020 15:24:30 +1100 [thread overview]
Message-ID: <ac25aa3ba40d54f973e3d9705d6b75a0856eafb4.camel@au1.ibm.com> (raw)
In-Reply-To: <7e0e3b71-d70c-1dee-b630-0c33596b7223@linux.ibm.com>
On Wed, 2020-03-04 at 16:21 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva <alastair@d-silva.org>
> >
> > These IOCTLs provide low level access to the card to aid in
> > debugging
> > controller/FPGA firmware.
> >
> > Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
> > ---
> > arch/powerpc/platforms/powernv/pmem/Kconfig | 6 +
> > arch/powerpc/platforms/powernv/pmem/ocxl.c | 249
> > ++++++++++++++++++++
> > include/uapi/nvdimm/ocxl-pmem.h | 32 +++
> > 3 files changed, 287 insertions(+)
> >
> > diff --git a/arch/powerpc/platforms/powernv/pmem/Kconfig
> > b/arch/powerpc/platforms/powernv/pmem/Kconfig
> > index c5d927520920..3f44429d70c9 100644
> > --- a/arch/powerpc/platforms/powernv/pmem/Kconfig
> > +++ b/arch/powerpc/platforms/powernv/pmem/Kconfig
> > @@ -12,4 +12,10 @@ config OCXL_PMEM
> >
> > Select N if unsure.
> >
> > +config OCXL_PMEM_DEBUG
> > + bool "OpenCAPI Persistent Memory debugging"
> > + depends on OCXL_PMEM
> > + help
> > + Enables low level IOCTLs for OpenCAPI Persistent Memory
> > firmware development
> > +
> > endif
> > diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl.c
> > b/arch/powerpc/platforms/powernv/pmem/ocxl.c
> > index e01f6f9fc180..d4ce5e9e0521 100644
> > --- a/arch/powerpc/platforms/powernv/pmem/ocxl.c
> > +++ b/arch/powerpc/platforms/powernv/pmem/ocxl.c
> > @@ -1050,6 +1050,235 @@ int req_controller_health_perf(struct
> > ocxlpmem *ocxlpmem)
> > GLOBAL_MMIO_HCI_REQ_HEALTH_PERF);
> > }
> >
> > +#ifdef CONFIG_OCXL_PMEM_DEBUG
> > +/**
> > + * enable_fwdebug() - Enable FW debug on the controller
> > + * @ocxlpmem: the device metadata
> > + * Return: 0 on success, negative on failure
> > + */
> > +static int enable_fwdebug(const struct ocxlpmem *ocxlpmem)
> > +{
> > + return ocxl_global_mmio_set64(ocxlpmem->ocxl_afu,
> > GLOBAL_MMIO_HCI,
> > + OCXL_LITTLE_ENDIAN,
> > + GLOBAL_MMIO_HCI_FW_DEBUG);
> > +}
> > +
> > +/**
> > + * disable_fwdebug() - Disable FW debug on the controller
> > + * @ocxlpmem: the device metadata
> > + * Return: 0 on success, negative on failure
> > + */
> > +static int disable_fwdebug(const struct ocxlpmem *ocxlpmem)
> > +{
> > + return ocxl_global_mmio_set64(ocxlpmem->ocxl_afu,
> > GLOBAL_MMIO_HCIC,
> > + OCXL_LITTLE_ENDIAN,
> > + GLOBAL_MMIO_HCI_FW_DEBUG);
> > +}
> > +
> > +static int ioctl_fwdebug(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_fwdebug __user
> > *uarg)
> > +{
> > + struct ioctl_ocxl_pmem_fwdebug args;
> > + u64 val;
> > + int i;
> > + int rc;
> > +
> > + if (copy_from_user(&args, uarg, sizeof(args)))
> > + return -EFAULT;
> > +
> > + // Buffer size must be a multiple of 8
> > + if ((args.buf_size & 0x07))
> > + return -EINVAL;
> > +
> > + if (args.buf_size > ocxlpmem->admin_command.data_size)
> > + return -EINVAL;
> > +
> > + mutex_lock(&ocxlpmem->admin_command.lock);
> > +
> > + rc = enable_fwdebug(ocxlpmem);
> > + if (rc)
> > + goto out;
> > +
> > + rc = admin_command_request(ocxlpmem, ADMIN_COMMAND_FW_DEBUG);
> > + if (rc)
> > + goto out;
> > +
> > + // Write DebugAction & FunctionCode
> > + val = ((u64)args.debug_action << 56) | ((u64)args.function_code
> > << 40);
> > +
> > + rc = ocxl_global_mmio_write64(ocxlpmem->ocxl_afu,
> > + ocxlpmem-
> > >admin_command.request_offset + 0x08,
> > + OCXL_LITTLE_ENDIAN, val);
> > + if (rc)
> > + goto out;
> > +
> > + rc = ocxl_global_mmio_write64(ocxlpmem->ocxl_afu,
> > + ocxlpmem-
> > >admin_command.request_offset + 0x10,
> > + OCXL_LITTLE_ENDIAN,
> > args.debug_parameter_1);
> > + if (rc)
> > + goto out;
> > +
> > + rc = ocxl_global_mmio_write64(ocxlpmem->ocxl_afu,
> > + ocxlpmem-
> > >admin_command.request_offset + 0x18,
> > + OCXL_LITTLE_ENDIAN,
> > args.debug_parameter_2);
> > + if (rc)
> > + goto out;
> > +
> > + for (i = 0x20; i < 0x38; i += 0x08)
> > + rc = ocxl_global_mmio_write64(ocxlpmem->ocxl_afu,
> > + ocxlpmem-
> > >admin_command.request_offset + i,
> > + OCXL_LITTLE_ENDIAN, 0);
> > + if (rc)
> > + goto out;
>
> rc is the for loop body. The rc test is not.
>
Whoops :)
>
> > +
> > +
> > + // Populate admin command buffer
> > + if (args.buf_size) {
> > + for (i = 0; i < args.buf_size; i += sizeof(u64)) {
> > + u64 val;
> > +
> > + if (copy_from_user(&val, &args.buf[i],
> > sizeof(u64)))
> > + return -EFAULT;
>
> need to get rc and goto out because of the mutex
>
Ok
>
> > +
> > + rc = ocxl_global_mmio_write64(ocxlpmem-
> > >ocxl_afu,
> > + ocxlpmem-
> > >admin_command.data_offset + i,
> > + OCXL_HOST_ENDIAN,
> > val);
> > + if (rc)
> > + goto out;
> > + }
> > + }
> > +
> > + rc = admin_command_execute(ocxlpmem);
> > + if (rc)
> > + goto out;
> > +
> > + rc = admin_command_complete_timeout(ocxlpmem,
> > + ocxlpmem-
> > >timeouts[ADMIN_COMMAND_FW_DEBUG]);
> > + if (rc < 0)
> > + goto out;
> > +
> > + rc = admin_response(ocxlpmem);
> > + if (rc < 0)
> > + goto out;
> > + if (rc != STATUS_SUCCESS) {
> > + warn_status(ocxlpmem, "Unexpected status from FW
> > Debug", rc);
> > + goto out;
> > + }
> > +
> > + if (args.buf_size) {
> > + for (i = 0; i < args.buf_size; i += sizeof(u64)) {
> > + u64 val;
> > +
> > + rc = ocxl_global_mmio_read64(ocxlpmem-
> > >ocxl_afu,
> > + ocxlpmem-
> > >admin_command.data_offset + i,
> > + OCXL_HOST_ENDIAN,
> > &val);
> > + if (rc)
> > + goto out;
> > +
> > + if (copy_to_user(&args.buf[i], &val,
> > sizeof(u64))) {
> > + rc = -EFAULT;
> > + goto out;
> > + }
> > + }
> > + }
> > +
> > + rc = admin_response_handled(ocxlpmem);
> > + if (rc)
> > + goto out;
> > +
> > + rc = disable_fwdebug(ocxlpmem);
> > + if (rc)
> > + goto out;
> > +
> > +out:
> > + mutex_unlock(&ocxlpmem->admin_command.lock);
> > + return rc;
> > +}
> > +
> > +static int ioctl_shutdown(struct ocxlpmem *ocxlpmem)
> > +{
> > + int rc;
> > +
> > + mutex_lock(&ocxlpmem->admin_command.lock);
> > +
> > + rc = admin_command_request(ocxlpmem, ADMIN_COMMAND_SHUTDOWN);
> > + if (rc)
> > + goto out;
> > +
> > + rc = admin_command_execute(ocxlpmem);
> > + if (rc)
> > + goto out;
> > +
> > + rc = admin_command_complete_timeout(ocxlpmem,
> > ADMIN_COMMAND_SHUTDOWN);
> > + if (rc < 0) {
> > + dev_warn(&ocxlpmem->dev, "Shutdown timed out\n");
> > + goto out;
> > + }
> > +
> > + rc = 0;
> > + goto out;
>
> We can remove that goto.
Ok
>
> No admin_response_handled()? Is that shutting down the full adapter
> and
> we have nobody to talk to? What happens next?
>
That's an oversight, we should call admin_response_handled().
>
> > +
> > +out:
> > + mutex_unlock(&ocxlpmem->admin_command.lock);
> > + return rc;
> > +}
> > +
> > +static int ioctl_mmio_write(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_mmio __user
> > *uarg)
> > +{
> > + struct scm_ioctl_mmio args;
> > +
> > + if (copy_from_user(&args, uarg, sizeof(args)))
> > + return -EFAULT;
> > +
> > + return ocxl_global_mmio_write64(ocxlpmem->ocxl_afu,
> > args.address,
> > + OCXL_LITTLE_ENDIAN, args.val);
> > +}
> > +
> > +static int ioctl_mmio_read(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_mmio __user
> > *uarg)
> > +{
> > + struct ioctl_ocxl_pmem_mmio args;
> > + int rc;
> > +
> > + if (copy_from_user(&args, uarg, sizeof(args)))
> > + return -EFAULT;
> > +
> > + rc = ocxl_global_mmio_read64(ocxlpmem->ocxl_afu, args.address,
> > + OCXL_LITTLE_ENDIAN, &args.val);
> > + if (rc)
> > + return rc;
> > +
> > + if (copy_to_user(uarg, &args, sizeof(args)))
> > + return -EFAULT;
> > +
> > + return 0;
> > +}
> > +#else /* CONFIG_OCXL_PMEM_DEBUG */
> > +static int ioctl_fwdebug(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_fwdebug __user
> > *uarg)
> > +{
> > + return -EPERM;
> > +}
> > +
> > +static int ioctl_shutdown(struct ocxlpmem *ocxlpmem)
> > +{
> > + return -EPERM;
> > +}
> > +
> > +static int ioctl_mmio_write(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_mmio __user
> > *uarg)
> > +{
> > + return -EPERM;
> > +}
> > +
> > +static int ioctl_mmio_read(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_mmio __user
> > *uarg)
> > +{
> > + return -EPERM;
> > +}
>
> The 'else' clause could be dropped, the ioctls will return EINVAL,
> which
> is fine, I think.
>
>
Ok
>
> > +#endif /* CONFIG_OCXL_PMEM_DEBUG */
> > +
> > static long file_ioctl(struct file *file, unsigned int cmd,
> > unsigned long args)
> > {
> > struct ocxlpmem *ocxlpmem = file->private_data;
> > @@ -1091,6 +1320,26 @@ static long file_ioctl(struct file *file,
> > unsigned int cmd, unsigned long args)
> > case IOCTL_OCXL_PMEM_REQUEST_HEALTH:
> > rc = req_controller_health_perf(ocxlpmem);
> > break;
> > +
> > + case IOCTL_OCXL_PMEM_FWDEBUG:
> > + rc = ioctl_fwdebug(ocxlpmem,
> > + (struct ioctl_ocxl_pmem_fwdebug
> > __user *)args);
> > + break;
> > +
> > + case IOCTL_OCXL_PMEM_SHUTDOWN:
> > + rc = ioctl_shutdown(ocxlpmem);
> > + break;
> > +
> > + case IOCTL_OCXL_PMEM_MMIO_WRITE:
> > + rc = ioctl_mmio_write(ocxlpmem,
> > + (struct ioctl_ocxl_pmem_mmio
> > __user *)args);
> > + break;
> > +
> > + case IOCTL_OCXL_PMEM_MMIO_READ:
> > + rc = ioctl_mmio_read(ocxlpmem,
> > + (struct ioctl_ocxl_pmem_mmio
> > __user *)args);
> > + break;
> > +
> > }
> >
> > return rc;
> > diff --git a/include/uapi/nvdimm/ocxl-pmem.h
> > b/include/uapi/nvdimm/ocxl-pmem.h
> > index 0d03abb44001..e20a4f8be82a 100644
> > --- a/include/uapi/nvdimm/ocxl-pmem.h
> > +++ b/include/uapi/nvdimm/ocxl-pmem.h
> > @@ -6,6 +6,28 @@
> > #include <linux/types.h>
> > #include <linux/ioctl.h>
> >
> > +enum ocxlpmem_fwdebug_action {
> > + OCXL_PMEM_FWDEBUG_READ_CONTROLLER_MEMORY = 0x01,
> > + OCXL_PMEM_FWDEBUG_WRITE_CONTROLLER_MEMORY = 0x02,
> > + OCXL_PMEM_FWDEBUG_ENABLE_FUNCTION = 0x03,
> > + OCXL_PMEM_FWDEBUG_DISABLE_FUNCTION = 0x04,
> > + OCXL_PMEM_FWDEBUG_GET_PEL = 0x05, // Retrieve Persistent Error
> > Log
> > +};
> > +
> > +struct ioctl_ocxl_pmem_buffer_info {
> > + __u32 admin_command_buffer_size; // out
> > + __u32 near_storage_buffer_size; // out
> > +};
> > +
> > +struct ioctl_ocxl_pmem_fwdebug { // All args are inputs
> > + enum ocxlpmem_fwdebug_action debug_action;
>
> More kernel ABI problems. My interpretation of the "enumeration
> specifiers" section of C99 is that we can't rely on the size of the
> enum.
>
Ok
>
> > + __u16 function_code;
> > + __u16 buf_size; // Size of optional data buffer
> > + __u64 debug_parameter_1;
> > + __u64 debug_parameter_2;
> > + __u8 *buf; // Pointer to optional in/out data buffer
> > +};
> > +
> > #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))
> > @@ -66,6 +88,11 @@ struct ioctl_ocxl_pmem_controller_stats {
> > __u64 cache_write_latency; /* nanoseconds */
> > };
> >
> > +struct ioctl_ocxl_pmem_mmio {
> > + __u64 address; /* Offset in global MMIO space */
> > + __u64 val; /* value to write/was read */
> > +};
>
> Can we group all the debug data structures together in the header
> file,
> with a comment indicating that they may not be available in the
> kernel,
> depending on the config?
>
Ok
> Fred
>
>
> > +
> > struct ioctl_ocxl_pmem_eventfd {
> > __s32 eventfd;
> > __u32 reserved;
> > @@ -92,4 +119,9 @@ struct ioctl_ocxl_pmem_eventfd {
> > #define IOCTL_OCXL_PMEM_EVENT_CHECK _IOR(OC
> > XL_PMEM_MAGIC, 0x07, __u64)
> > #define IOCTL_OCXL_PMEM_REQUEST_HEALTH _IO(OCX
> > L_PMEM_MAGIC, 0x08)
> >
> > +#define IOCTL_OCXL_PMEM_FWDEBUG _IOWR(OCXL_PMEM_MAGIC,
> > 0xf0, struct ioctl_ocxl_pmem_fwdebug)
> > +#define IOCTL_OCXL_PMEM_MMIO_WRITE _IOW(OCXL_PMEM_MAGIC, 0xf1,
> > struct ioctl_ocxl_pmem_mmio)
> > +#define IOCTL_OCXL_PMEM_MMIO_READ _IOWR(OCXL_PMEM_MAGIC, 0xf2,
> > struct ioctl_ocxl_pmem_mmio)
> > +#define IOCTL_OCXL_PMEM_SHUTDOWN _IO(OCXL_PMEM_MAGIC, 0xf3)
> > +
> > #endif /* _UAPI_OCXL_SCM_H */
> >
--
Alastair D'Silva
Open Source Developer
Linux Technology Centre, IBM Australia
mob: 0423 762 819
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next prev parent reply other threads:[~2020-03-12 4:24 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
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 [this message]
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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