+ 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
Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
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
---
Nothing new to add compared
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.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/Kconfig | 6 +
arch/powerpc/platforms/powernv
Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
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 th
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 requested from the controller,
it responds with an error log containing the requested information.
This patch allows the request to me issue
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:
Controller Hardware/Firmware Fatal
Controller Dump Available
Error Log available
This patch allows a userspace ap
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 the card.
This patch exposes this information via an IOCTL.
Signed-off-by: Alastair D'Silva
---
arch/
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.
This is useful during debugging or when a fatal error on the controller
has occurred.
Signed-off-by: Alastair D'Silva
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.
This patch exposes this information in 2 ways:
- During probe, if an error occurs & a log is available, print it to the
consol
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 with userspace.
Signed-off-by: Alastair D'Silva
---
arch/powerpc/platforms/powernv/pmem/ocxl.c| 116 +++
Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
From: Alastair D'Silva
Similar to the previous patch, this adds support for near storage commands.
Signed-off-by: Alastair D'Silva
---
Is any of these new functions ever called?
Fred
arch/powerpc/platforms/powernv/pmem/ocxl.c|
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 timeouts to wait for the controller to report that it is ready
before handing the memory over to libnvdimm.
Signed-off-by: Alastair D'Silv
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 infrastructure
to be used.
Namespace metadata is stored on the media itself, so
scm_reserve_metadata() maps 1 section's wor
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 infrastructure
to be used.
Namespace metadata is stored on the media itself, so
scm_reserve_metadata() maps 1 section's wor
Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
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
---
Acked-by: Frederic Barrat
drivers/mis
Le 21/02/2020 à 04:27, Alastair D'Silva a écrit :
From: Alastair D'Silva
Add functions to map/unmap LPC memory
Signed-off-by: Alastair D'Silva
---
It looks ok to me.
Acked-by: Frederic Barrat
drivers/misc/ocxl/core.c | 51 +++
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
---
drivers/misc/ocxl/core.c | 10 ++
drivers/misc/ocxl/link.c | 53 +
Le 21/02/2020 à 04:26, Alastair D'Silva a écrit :
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
---
Thanks for the cleanup!
Acked-by: Frederic Barrat
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
---
arch/powerpc/include/asm/pnv-ocxl.h | 4 +++
arch/powerpc/platforms/powernv/ocxl.c | 43 ++
Le 03/12/2019 à 04:46, 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
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 ++
arch/powerpc/platforms/powernv/ocxl.c | 42 +++
Le 03/12/2019 à 04:46, Alastair D'Silva a écrit :
From: Alastair D'Silva
ocxl_context_detach_all() is called from ocxl_function_close(), so
there is no reason to leave the contexts allocated, as the caller
can do nothing useful with them at that point.
This also has the side-effect of freein
Le 03/12/2019 à 04:46, Alastair D'Silva a écrit :
From: Alastair D'Silva
Add functions to map/unmap LPC memory
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/config.c| 4 +++
drivers/misc/ocxl/core.c | 50 +++
drivers/misc/ocxl/ocxl_i
Le 03/12/2019 à 04:46, 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
---
drivers/misc/ocxl/core.c | 10 ++
drivers/misc/ocxl/link.c | 60 +
Le 03/12/2019 à 04:46, 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
---
It looks ok now, thanks
Acked-by: Frederic Barrat
arch/powerpc/include/asm/pnv-ocxl.h |
Hi Alastair,
The patch is huge and could/should probably be split in smaller pieces
to ease the review. However, having sinned on that same topic in the
past, I made a first pass anyway. I haven't covered everything but tried
to focus on the general setup of the driver for now.
Since the patch
Le 25/10/2019 à 06:47, Alastair D'Silva a écrit :
From: Alastair D'Silva
Enable OpenCAPI Storage Class Memory driver on bare metal
Signed-off-by: Alastair D'Silva
---
arch/powerpc/configs/powernv_defconfig | 4
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/configs/power
Le 25/10/2019 à 06:47, Alastair D'Silva a écrit :
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
Le 25/10/2019 à 06:47, Alastair D'Silva a écrit :
From: Alastair D'Silva
This patch allows the user to bind OpenCAPI SCM devices to the generic OCXL
driver.
Signed-off-by: Alastair D'Silva
---
I'm wondering if we should upstream this. Is it of any use outside of
some serious debug sessi
Le 25/10/2019 à 06:47, Alastair D'Silva a écrit :
From: Alastair D'Silva
Add functions to map/unmap LPC memory
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/config.c| 4 +++
drivers/misc/ocxl/core.c | 50 +++
drivers/misc/ocxl/ocxl_i
Le 25/10/2019 à 06:47, 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
---
drivers/misc/ocxl/core.c | 10 ++
drivers/misc/ocxl/link.c | 60 +
Le 25/10/2019 à 06:46, 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
---
arch/powerpc/include/asm/pnv-ocxl.h | 2 ++
arch/powerpc/platforms/powernv/ocxl.c | 41 +++
Le 25/10/2019 à 06:46, Alastair D'Silva a écrit :
From: Alastair D'Silva
These functions don't exist, so remove the prototypes for them.
Signed-off-by: Alastair D'Silva
---
Reviewed-by: Frederic Barrat
drivers/nvdimm/nd-core.h | 4
1 file changed, 4 dele
Le 25/10/2019 à 06:46, Alastair D'Silva a écrit :
From: Alastair D'Silva
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/
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