linux-kernel - [PATCH v6 2/2] platform/mellanox/mlxbf-bootctl: Add the ABI definitions

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Date:   Mon,  7 Oct 2019 11:48:47 -0400
From:   Liming Sun <lsun@...lanox.com>
To:     Andy Shevchenko <andy@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Vadim Pasternak <vadimp@...lanox.com>,
        David Woods <dwoods@...lanox.com>,
        Mark Rutland <mark.rutland@....com>
Cc:     Liming Sun <lsun@...lanox.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        "Paul E. McKenney" <paulmck@...ux.ibm.com>
Subject: [PATCH v6 2/2] platform/mellanox/mlxbf-bootctl: Add the ABI definitions

This commit adds the ABI definitions exposed to userspace for
the platform/mellanox/mlxbf-bootctl driver.

Reviewed-by: Vadim Pasternak <vadimp@...lanox.com>
Signed-off-by: Liming Sun <lsun@...lanox.com>
---
v5->v6:
    Fixes for comments from Mark:
    - Changed to use device attributes (DEVICE_ATTR_xx) instead of
      driver attributes (DRIVER_ATTR_xx) for the exported sysfs
      attributes.
---
 .../ABI/testing/sysfs-platform-mellanox-bootctl    | 58 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 59 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-platform-mellanox-bootctl

diff --git a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
new file mode 100644
index 0000000..b60a46e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
@@ -0,0 +1,58 @@
+What:		/sys/bus/platform/devices/MLNXBF04:00/driver/lifecycle_state
+Date:		Oct 2019
+KernelVersion:	5.4
+Contact:	"Liming Sun <lsun@...lanox.com>"
+Description:
+		The Life-cycle state of the SoC, which could be one of the
+		following values.
+		  Production - Production state and can be updated to secure
+		  GA Secured - Secure chip and not able to change state
+		  GA Non-Secured - Non-Secure chip and not able to change state
+		  RMA - Return Merchandise Authorization
+
+What:		/sys/bus/platform/devices/MLNXBF04:00/driver/post_reset_wdog
+Date:		Oct 2019
+KernelVersion:	5.4
+Contact:	"Liming Sun <lsun@...lanox.com>"
+Description:
+		The watchdog setting in seconds for the next booting. It's used
+		to reboot the chip and recover it to the old state if the new
+		boot partition fails.
+
+What:		/sys/bus/platform/devices/MLNXBF04:00/driver/reset_action
+Date:		Oct 2019
+KernelVersion:	5.4
+Contact:	"Liming Sun <lsun@...lanox.com>"
+Description:
+		The source of the boot stream for the next reset. It could be
+		one of the following values.
+		  external - boot from external source (USB or PCIe)
+		  emmc - boot from the onchip eMMC
+		  emmc_legacy - boot from the onchip eMMC in legacy (slow) mode
+
+What:		/sys/bus/platform/devices/MLNXBF04:00/driver/second_reset_action
+Date:		Oct 2019
+KernelVersion:	5.4
+Contact:	"Liming Sun <lsun@...lanox.com>"
+Description:
+		Update the source of the boot stream after next reset. It could
+		be one of the following values and will be applied after next
+		reset.
+		  external - boot from external source (USB or PCIe)
+		  emmc - boot from the onchip eMMC
+		  emmc_legacy - boot from the onchip eMMC in legacy (slow) mode
+		  swap_emmc - swap the primary / secondary boot partition
+		  none - cancel the action
+
+What:		/sys/bus/platform/devices/MLNXBF04:00/driver/secure_boot_fuse_state
+Date:		Oct 2019
+KernelVersion:	5.4
+Contact:	"Liming Sun <lsun@...lanox.com>"
+Description:
+		The state of eFuse versions with the following values.
+		  InUse - burnt, valid and currently in use
+		  Used - burnt and valid
+		  Free - not burnt and free to use
+		  Skipped - not burnt but not free (skipped)
+		  Wasted - burnt and invalid
+		  Invalid - not burnt but marked as valid (error state).
diff --git a/MAINTAINERS b/MAINTAINERS
index 55199ef..c2ff283 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10435,6 +10435,7 @@ M:	Darren Hart <dvhart@...radead.org>
 M:	Vadim Pasternak <vadimp@...lanox.com>
 L:	platform-driver-x86@...r.kernel.org
 S:	Supported
+F:	Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
 F:	drivers/platform/mellanox/
 F:	include/linux/platform_data/mlxreg.h
 
-- 
1.8.3.1