Function declarations don't need externs, remove the existing ones
so they are consistent with newer code
Signed-off-by: Alastair D'Silva
Acked-by: Andrew Donnellan
Acked-by: Frederic Barrat
---
arch/powerpc/include/asm/pnv-ocxl.h | 40 ++---
include/misc/ocxl.h
This patch addresses warnings and errors from the kernel doc scripts for
the OpenCAPI driver.
It also makes minor tweaks to make the docs more consistent.
Signed-off-by: Alastair D'Silva
Acked-by: Andrew Donnellan
---
drivers/misc/ocxl/config.c| 24
drivers/misc/ocxl
These patches address checkpatch & kernel doc warnings
in the OpenCAPI infrastructure.
Alastair D'Silva (2):
ocxl: Remove unnecessary externs
ocxl: Address kernel doc errors & warnings
arch/powerpc/include/asm/pnv-ocxl.h | 40 ++-
drivers/misc/ocxl/config.c
> -Original Message-
> From: Dan Williams
> Sent: Wednesday, 1 April 2020 7:49 PM
> To: Alastair D'Silva
> Cc: Aneesh Kumar K . V ; Oliver O'Halloran
> ; Benjamin Herrenschmidt
> ; Paul Mackerras ; Michael
> Ellerman ; Frederic Barrat ;
> Andrew Donnellan ; A
> -Original Message-
> From: Dan Williams
> Sent: Wednesday, 1 April 2020 7:49 PM
> To: Alastair D'Silva
> Cc: Aneesh Kumar K . V ; Oliver O'Halloran
> ; Benjamin Herrenschmidt
> ; Paul Mackerras ; Michael
> Ellerman ; Frederic Barrat ;
> Andrew Donnellan ; A
> -Original Message-
> From: Dan Williams
> Sent: Wednesday, 1 April 2020 7:49 PM
> To: Alastair D'Silva
> Cc: Aneesh Kumar K . V ; Oliver O'Halloran
> ; Benjamin Herrenschmidt
> ; Paul Mackerras ; Michael
> Ellerman ; Frederic Barrat ;
> Andrew Donnellan ; A
> -Original Message-
> From: Dan Williams
> Sent: Wednesday, 1 April 2020 7:48 PM
> To: Alastair D'Silva
> Cc: Aneesh Kumar K . V ; Oliver O'Halloran
> ; Benjamin Herrenschmidt
> ; Paul Mackerras ; Michael
> Ellerman ; Frederic Barrat ;
> Andrew Donnellan ; A
> -Original Message-
> From: Dan Williams
> Sent: Wednesday, 1 April 2020 7:48 PM
> To: Alastair D'Silva
> Cc: Aneesh Kumar K . V ; Oliver O'Halloran
> ; Benjamin Herrenschmidt
> ; Paul Mackerras ; Michael
> Ellerman ; Frederic Barrat ;
> Andrew Donnellan ; A
> -Original Message-
> From: Dan Williams
> Sent: Wednesday, 1 April 2020 7:48 PM
> To: Alastair D'Silva
> Cc: Aneesh Kumar K . V ; Oliver O'Halloran
> ; Benjamin Herrenschmidt
> ; Paul Mackerras ; Michael
> Ellerman ; Frederic Barrat ;
> Andrew Donnellan ; A
These IOCTLs provide low level access to the card to aid in debugging
controller/FPGA firmware.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/Kconfig| 6 +
drivers/nvdimm/ocxl/main.c | 198 +
drivers/nvdimm/ocxl/ocxlpmem.h | 2 +-
include
used for the dump
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 161 +
include/uapi/nvdimm/ocxlpmem.h | 16
2 files changed, 177 insertions(+)
diff --git a/drivers/nvdimm/ocxl/main.c b/drivers/nvdimm/ocxl/main.c
index e6be0029f658..d0db358d
OCTL.
Userspace is notified of pending error logs in a later patch
("powerpc/powernv/pmem: Forward events to userspace")
Signed-off-by: Alastair D'Silva
---
.../userspace-api/ioctl/ioctl-number.rst | 1 +
drivers/nvdimm/ocxl/main.c| 240 ++
inclu
The controller can report a number of statistics that are useful
in evaluating the performance and reliability of the card.
This patch exposes this information via an IOCTL.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 220 +
include/uapi
This patch retrieves proprietary formatted SMART data and makes it
available via ndctl. A later contribution will be made to ndctl to
parse this data.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 113 +
drivers/nvdimm/ocxl/ocxlpmem.h | 18
to receive notifications of these
interrupts.
Userspace can then identify what events have occurred by calling
SCM_IOCTL_EVENT_CHECK and checking against the SCM_IOCTL_EVENT_FOO
masks.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 220 +
drivers
This patch introduces a character device (/dev/ocxlpmemX) which further
patches will use to interact with userspace, such as error logs,
controller stats and card debug functionality.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 117
OpenCAPI LPC memory is allocated per link, but each link supports
multiple AFUs, and each AFU can have LPC memory assigned to it.
This patch tallys the memory for all AFUs on a link, allowing it
to be mapped in a single operation after the AFUs have been
enumerated.
Signed-off-by: Alastair
These values have been taken from the device specifications.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/ocxlpmem.h | 73 ++
1 file changed, 73 insertions(+)
diff --git a/drivers/nvdimm/ocxl/ocxlpmem.h b/drivers/nvdimm/ocxl/ocxlpmem.h
index
This patch exposes the serial number & firmware version in sysfs,
which will be used by ndctl in userspace to help users identify
the device.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 42 --
1 file changed, 40 insertions(+), 2 delet
atch. Userspace will be notified of pending error
logs via an event.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/main.c | 16
include/uapi/nvdimm/ocxlpmem.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/drivers/nvdimm/ocxl/main.c b/drivers/nvdimm/ocxl/main.c
i
The heartbeat admin command is a simple admin command that exercises
the communication mechanisms within the controller.
This patch issues a heartbeat command to the card during init to ensure
we can communicate with the card's controller.
Signed-off-by: Alastair D'Silva
Reviewed-by: Andrew
The OpenCAPI Persistent Memory driver will be maintained as part ofi
the ppc tree.
I'm also adding myself as an author of the driver & contributor to
the generic ocxl driver.
Signed-off-by: Alastair D'Silva
---
MAINTAINERS | 3 +++
1 file changed, 3 insertions(+)
diff --git a/MAINTAINE
This patch addresses warnings and errors from the kernel doc scripts for
the OpenCAPI driver.
It also makes minor tweaks to make the docs more consistent.
Signed-off-by: Alastair D'Silva
Acked-by: Andrew Donnellan
---
drivers/misc/ocxl/config.c| 24
drivers/misc/ocxl
Add functions to map/unmap LPC memory
Signed-off-by: Alastair D'Silva
Acked-by: Frederic Barrat
---
drivers/misc/ocxl/core.c | 51 +++
drivers/misc/ocxl/ocxl_internal.h | 3 ++
include/misc/ocxl.h | 21 +
3 files changed, 75
Function declarations don't need externs, remove the existing ones
so they are consistent with newer code
Signed-off-by: Alastair D'Silva
Acked-by: Andrew Donnellan
Acked-by: Frederic Barrat
---
arch/powerpc/include/asm/pnv-ocxl.h | 40 ++---
include/misc/ocxl.h
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
---
drivers/nvdimm/ocxl/main.c | 65 ++
drivers/nvdimm/ocxl/ocxlpmem.h | 50 -
drivers/nvdimm
-by: Alastair D'Silva
Reviewed-by: Andrew Donnellan
---
arch/powerpc/configs/powernv_defconfig | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/configs/powernv_defconfig
b/arch/powerpc/configs/powernv_defconfig
index 71749377d164..921d77bbd3d2 100644
--- a/arch/powerpc/configs
device.
Signed-off-by: Alastair D'Silva
Reviewed-by: Andrew Donnellan
---
include/linux/memory_hotplug.h | 5 +
mm/memory_hotplug.c| 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index
This patch adds OPAL calls to powernv so that the OpenCAPI
driver can map & release LPC (Lowest Point of Coherency) memory.
Signed-off-by: Alastair D'Silva
Reviewed-by: Andrew Donnellan
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 ++
arch/powerpc/platforms/powernv/ocxl.c
ead
- Rename scm_foo_offset_0x00 to scm_foo_header_parse & add docs
- Name DIMM attribs "ocxl" rather than "scm"
- Split out into base + many feature patches
- "powerpc: Enable OpenCAPI Storage Class Memory driver on bare metal"
- Bui
This patch retrieves the serial number of the card and makes it available
to consumers of the ocxl driver via the ocxl_fn struct.
Signed-off-by: Alastair D'Silva
Acked-by: Frederic Barrat
Acked-by: Andrew Donnellan
---
drivers/misc/ocxl/config.c | 46
is registered
with libnvdimm as an nvdimm. ndctl_config_read/write/size() provide
callbacks to libnvdimm to access the metadata.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/Kconfig | 2 +
drivers/nvdimm/Makefile| 1 +
drivers/nvdimm/ocxl/Kconfig| 15 ++
drivers/nvdimm
This patch reads timeouts & firmware version from the controller, and
uses those timeouts to wait for the controller to report that it is ready
before handing the memory over to libnvdimm.
Signed-off-by: Alastair D'Silva
---
drivers/nvdimm/ocxl/Makefile| 2 +-
drivers/nvdimm/
Add OPAL calls for LPC memory alloc/release
Signed-off-by: Alastair D'Silva
Acked-by: Andrew Donnellan
Acked-by: Frederic Barrat
---
arch/powerpc/include/asm/opal-api.h| 2 ++
arch/powerpc/include/asm/opal.h| 2 ++
arch/powerpc/platforms/powernv/opal-call.c | 2 ++
3 files
This patch emits a message showing how much LPC memory & special purpose
memory was detected on an OCXL device.
Signed-off-by: Alastair D'Silva
Acked-by: Frederic Barrat
Acked-by: Andrew Donnellan
---
drivers/misc/ocxl/config.c | 4
1 file changed, 4 insertions(+)
diff --git a/dri
On Thu, 2020-03-05 at 14:36 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > +static int ndctl_smart(struct ocxlpmem *ocxlpmem, struct
> > nd_cmd_pkg *pkg)
> > +{
> > + u32 length, i;
> > + struct nd_ocxl_smart *out;
> &g
On Thu, 2020-03-05 at 14:11 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > These IOCTLs provide low level access to the card to aid in
> > debugging
> > controller/FPGA firmware.
> &g
On Thu, 2020-03-05 at 11:46 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > The controller can report a number of statistics that are useful
> > in evaluating the performance and reliability of the card.
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
> >
> > These IOCTLs provide low level access to the card to aid in
> > debugging
> > controller/FPGA firmware.
>
On Wed, 2020-03-04 at 10:25 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > The controller can report a number of statistics that are useful
> > in evaluating the performance and reliability of
On Wed, 2020-03-04 at 12:06 +0100, Frederic Barrat wrote:
>
> Le 28/02/2020 à 07:12, Andrew Donnellan a écrit :
> > On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > > From: Alastair D'Silva
> > >
> > > When health & performance data is reque
On Wed, 2020-03-04 at 12:00 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > Some of the interrupts that the card generates are better handled
> > by the userspace daemon, in particular:
> >
On Wed, 2020-03-04 at 17:53 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > +static int ioctl_controller_dump_data(struct ocxlpmem *ocxlpmem,
> > + struct ioctl_ocxl_pmem_controller_dump_data __user
> > *uarg)
On Tue, 2020-03-03 at 19:04 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > This patch adds IOCTLs to allow userspace to request & fetch dumps
> > of the internal controller state.
> &
On Tue, 2020-03-03 at 11:36 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > The read error log command extracts information from the
> > controller's
> > internal error log.
> >
&g
On Tue, 2020-03-03 at 10:28 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > This patch introduces a character device (/dev/ocxl-scmX) which
> > further
> > patches will use to interact
On Tue, 2020-03-03 at 18:02 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:> @@ -938,6 +955,51 @@
> static
> int ioctl_controller_stats(struct ocxlpmem *ocxlpmem,
> > return rc;
> > }
> >
> > +static int ioc
On Tue, 2020-03-03 at 17:10 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:26 pm, Alastair D'Silva wrote:> +#ifdef
> CONFIG_MEMORY_HOTPLUG_SPARSE
> > +u64 pnv_ocxl_platform_lpc_setup(struct pci_dev *pdev, u64 size)
> > +{
> > + struct pci_controller *hose
On Mon, 2020-03-02 at 10:42 -0800, Dan Williams wrote:
> On Mon, Mar 2, 2020 at 9:59 AM Frederic Barrat > wrote:
> >
> >
> > Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > > From: Alastair D'Silva
> > >
> > > Similar to the
On Mon, 2020-03-02 at 18:51 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > This patch reads timeouts & firmware version from the controller,
> > and
> > uses those timeo
On Mon, 2020-03-02 at 18:35 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > This information will be used by ndctl in userspace to help users
> > identify
> > the device.
>
> You should includ
On Mon, 2020-03-02 at 16:34 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > This patch introduces a character device (/dev/ocxl-scmX) which
> > further
> > patches will use to interact with use
On Fri, 2020-02-28 at 17:12 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > When health & performance data is requested from the controller,
> > it responds with an error log containing the requested i
On Mon, 2020-03-02 at 10:42 +1100, Alastair D'Silva wrote:
> On Fri, 2020-02-28 at 08:15 +0100, Greg Kroah-Hartman wrote:
> > On Fri, Feb 28, 2020 at 05:25:31PM +1100, Andrew Donnellan wrote:
> > > On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > > > +int ocxl
On Fri, 2020-02-28 at 08:15 +0100, Greg Kroah-Hartman wrote:
> On Fri, Feb 28, 2020 at 05:25:31PM +1100, Andrew Donnellan wrote:
> > On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > > +int ocxlpmem_sysfs_add(struct ocxlpmem *ocxlpmem)
> > > +{
> > > + int
On Thu, 2020-02-27 at 21:44 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > This driver exposes LPC memory on OpenCAPI pmem cards
> > as an NVDIMM, allowing the existing nvram
On Thu, 2020-02-27 at 09:01 -0800, Dan Williams wrote:
> On Thu, Feb 20, 2020 at 7:28 PM Alastair D'Silva <
> alast...@au1.ibm.com> wrote:
> > From: Alastair D'Silva
> >
> > This patch requests the metadata required to issue admin commands,
> > as well
>
On Thu, 2020-02-27 at 19:30 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:> +int
> ns_response_handled(const struct ocxlpmem *ocxlpmem)
> > +{
> > + return ocxl_global_mmio_set64(ocxlpmem->ocxl_a
error on the read?
>
> I see that in the next patch, in ns_command_request() you check that
> NSCRA is 1 - did you mean to check that ACRA = 1 here?
>
>
I was in one version, but that was causing problems in startup since
there was successful prior command to assert ACRA.
I shou
On Thu, 2020-02-27 at 19:22 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > This patch requests the metadata required to issue admin commands,
> > as well
> > as some helper functions to c
On Thu, 2020-02-27 at 16:08 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > These values have been taken from the device specifications.
> >
> > Signed-off-by: Alastair D'Silva
>
> I've com
On Thu, 2020-02-27 at 14:54 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > +/**
> > + * read_device_metadata() - Retrieve config information from the
> > AFU and save it for future use
> > + * @ocxlpmem: the device metadata
> > +
> -Original Message-
> From: Baoquan He
> Sent: Wednesday, 26 February 2020 7:15 PM
> To: Alastair D'Silva
> Cc: alast...@d-silva.org; Aneesh Kumar K . V
> ; Oliver O'Halloran ;
> Benjamin Herrenschmidt ; Paul Mackerras
> ; Michael Ellerman ; Frederic
> Barrat
On Wed, 2020-02-26 at 16:07 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > This driver exposes LPC memory on OpenCAPI pmem cards
> > as an NVDIMM, allowing the existing nvram infrastructure
> &g
On Tue, 2020-02-25 at 16:32 -0800, Dan Williams wrote:
> On Tue, Feb 25, 2020 at 4:14 PM Alastair D'Silva <
> alast...@au1.ibm.com> wrote:
> > On Mon, 2020-02-24 at 17:51 +1100, Oliver O'Halloran wrote:
> > > On Mon, Feb 24, 2020 at 3:43 PM Alastair D'Silva <
>
On Tue, 2020-02-25 at 17:30 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:26, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > Tally up the LPC memory on an OpenCAPI link & allow it to be mapped
> >
> > Signed-off-by: Alastair D'Silva
On Tue, 2020-02-25 at 11:02 +0100, Frederic Barrat wrote:
>
> Le 21/02/2020 à 04:26, Alastair D'Silva a écrit :
> > From: Alastair D'Silva
> >
> > This patch adds platform support to map & release LPC memory.
> >
> > Signed-off-by: Alastair D'Silva
&g
On Mon, 2020-02-24 at 17:51 +1100, Oliver O'Halloran wrote:
> On Mon, Feb 24, 2020 at 3:43 PM Alastair D'Silva <
> alast...@au1.ibm.com> wrote:
> > On Sun, 2020-02-23 at 20:37 -0800, Matthew Wilcox wrote:
> > > On Mon, Feb 24, 2020 at 03:34:07PM +1100, Alastai
On Mon, 2020-02-24 at 17:06 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > This patch emits a message showing how much LPC memory & special
> > purpose
> > memory was detected on an OCXL dev
On Mon, 2020-02-24 at 17:02 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > Add functions to map/unmap LPC memory
> >
> > Signed-off-by: Alastair D'Silva
> > ---
>
On Mon, 2020-02-24 at 16:49 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:26 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > Add OPAL calls for LPC memory alloc/release
> >
> > Signed-off-by: Alastair D'Silva
> > Acked-by: Andrew D
On Mon, 2020-02-24 at 16:25 +1100, Andrew Donnellan wrote:
> On 21/2/20 2:26 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > Tally up the LPC memory on an OpenCAPI link & allow it to be mapped
> >
> > Signed-off-by: Alastair D'Silva
&g
On Sun, 2020-02-23 at 20:37 -0800, Matthew Wilcox wrote:
> On Mon, Feb 24, 2020 at 03:34:07PM +1100, Alastair D'Silva wrote:
> > V3:
> > - Rebase against next/next-20200220
> > - Move driver to arch/powerpc/platforms/powernv, we now expect
> > this
> > driv
On Fri, 2020-02-21 at 08:21 -0800, Dan Williams wrote:
> On Thu, Feb 20, 2020 at 7:28 PM Alastair D'Silva <
> alast...@au1.ibm.com> wrote:
> > From: Alastair D'Silva
> >
> > This series adds support for OpenCAPI Persistent Memory devices,
> > exposing
> &g
From: Alastair D'Silva
This patch adds platform support to map & release LPC memory.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/include/asm/pnv-ocxl.h | 4 +++
arch/powerpc/platforms/powernv/ocxl.c | 43 +++
2 files changed, 47 insertions(+)
diff --git a/
From: Alastair D'Silva
Function declarations don't need externs, remove the existing ones
so they are consistent with newer code
Signed-off-by: Alastair D'Silva
---
arch/powerpc/include/asm/pnv-ocxl.h | 32 ++---
include/misc/ocxl.h | 6 +++---
2 files
From: Alastair D'Silva
This patch introduces a character device (/dev/ocxl-scmX) which further
patches will use to interact with userspace.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/ocxl.c| 116 +-
.../platforms/powernv/pmem/ocxl_internal.h
From: Alastair D'Silva
These values have been taken from the device specifications.
Signed-off-by: Alastair D'Silva
---
.../platforms/powernv/pmem/ocxl_internal.h| 72 +++
1 file changed, 72 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl_internal.h
b
From: Alastair D'Silva
When health & performance data is requested from the controller,
it responds with an error log containing the requested information.
This patch allows the request to me issued via an IOCTL.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/oc
From: Alastair D'Silva
The controller can report a number of statistics that are useful
in evaluating the performance and reliability of the card.
This patch exposes this information via an IOCTL.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/ocxl.c | 185
From: Alastair D'Silva
The heartbeat admin command is a simple admin command that exercises
the communication mechanisms within the controller.
This patch issues a heartbeat command to the card during init to ensure
we can communicate with the card's controller.
Signed-off-by: Alastair D'Silva
From: Alastair D'Silva
This information will be used by ndctl in userspace to help users identify
the device.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/Makefile | 2 +-
arch/powerpc/platforms/powernv/pmem/ocxl.c| 5 +++
.../platforms/powernv/pmem
From: Alastair D'Silva
These IOCTLs provide low level access to the card to aid in debugging
controller/FPGA firmware.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/Kconfig | 6 +
arch/powerpc/platforms/powernv/pmem/ocxl.c | 249
include/uapi
From: Alastair D'Silva
Some of the interrupts that the card generates are better handled
by the userspace daemon, in particular:
Controller Hardware/Firmware Fatal
Controller Dump Available
Error Log available
This patch allows a userspace application to register an eventfd with
the driver via
From: Alastair D'Silva
This driver exposes LPC memory on OpenCAPI pmem cards
as an NVDIMM, allowing the existing nvram infrastructure
to be used.
Namespace metadata is stored on the media itself, so
scm_reserve_metadata() maps 1 section's worth of PMEM storage
at the start to hold
From: Alastair D'Silva
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 avail
From: Alastair D'Silva
This patch emits a message showing how much LPC memory & special purpose
memory was detected on an OCXL device.
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/config.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/misc/ocxl/config.c b/dri
From: Alastair D'Silva
The OpenCAPI Persistent Memory driver will be maintained as part ofi
the ppc tree.
I'm also adding myself as an author of the driver & contributor to
the generic ocxl driver.
Signed-off-by: Alastair D'Silva
---
MAINTAINERS | 3 +++
1 file changed, 3 insertions(+)
From: Alastair D'Silva
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
---
arch/powerpc/platforms/powernv/pmem/ocxl.c| 65
.../platforms
From: Alastair D'Silva
Similar to the previous patch, this adds support for near storage commands.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/ocxl.c| 6 +++
.../platforms/powernv/pmem/ocxl_internal.c| 41 +++
.../platforms/powernv/pmem
From: Alastair D'Silva
This patch adds IOCTLs to allow userspace to request & fetch dumps
of the internal controller state.
This is useful during debugging or when a fatal error on the controller
has occurred.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/oc
From: Alastair D'Silva
This patch enables the OpenCAPI Persistent Memory driver, as well
as DAX support, for the 'powernv' platform.
DAX is not a strict requirement for the functioning of the driver, but it
is likely that a user will want to create a DAX device on top of their
persistent memory
From: Alastair D'Silva
This patch retrieves proprietary formatted SMART data and makes it
available via ndctl. A later contribution will be made to ndctl to
parse this data.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/ocxl.c| 128
From: Alastair D'Silva
This patch reads timeouts & firmware version from the controller, and
uses those timeouts to wait for the controller to report that it is ready
before handing the memory over to libnvdimm.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/Make
From: Alastair D'Silva
This patch addresses warnings and errors from the kernel doc scripts for
the OpenCAPI driver.
It also makes minor tweaks to make the docs more consistent.
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/config.c| 24
drivers/misc/ocxl
From: Alastair D'Silva
This information will be used by ndctl in userspace to help users identify
the device.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/pmem
From: Alastair D'Silva
Add functions to map/unmap LPC memory
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/core.c | 51 +++
drivers/misc/ocxl/ocxl_internal.h | 3 ++
include/misc/ocxl.h | 21 +
3 files changed, 75
From: Alastair D'Silva
This patch retrieves the serial number of the card and makes it available
to consumers of the ocxl driver via the ocxl_fn struct.
Signed-off-by: Alastair D'Silva
Acked-by: Frederic Barrat
Acked-by: Andrew Donnellan
---
drivers/misc/ocxl/config.c | 46
From: Alastair D'Silva
Tally up the LPC memory on an OpenCAPI link & allow it to be mapped
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/core.c | 10 ++
drivers/misc/ocxl/link.c | 53 +++
drivers/misc/ocxl/ocxl_internal.h
From: Alastair D'Silva
This series adds support for OpenCAPI Persistent Memory devices, exposing
them as nvdimms so that we can make use of the existing infrastructure.
Alastair D'Silva (27):
powerpc: Add OPAL calls for LPC memory alloc/release
mm/memory_hotplug: Allow
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