netdev - [PATCH net-next 2/5] ibmvnic: Include documentation for ibmvnic sysfs files

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Date:   Mon, 31 Aug 2020 11:58:10 -0500
From:   Thomas Falcon <tlfalcon@...ux.ibm.com>
To:     netdev@...r.kernel.org
Cc:     drt@...ux.vnet.ibm.com, sukadev@...ux.vnet.ibm.com,
        ljp@...ux.vnet.ibm.com, cforno12@...ux.ibm.com,
        Thomas Falcon <tlfalcon@...ux.ibm.com>
Subject: [PATCH net-next 2/5] ibmvnic: Include documentation for ibmvnic sysfs files

Include documentation for existing ibmvnic sysfs files,
currently only for "failover," which is used to swap
the active hardware port to a backup port in redundant
backing hardware or failover configurations.

Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>
---
 Documentation/ABI/testing/sysfs-driver-ibmvnic | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-ibmvnic

diff --git a/Documentation/ABI/testing/sysfs-driver-ibmvnic b/Documentation/ABI/testing/sysfs-driver-ibmvnic
new file mode 100644
index 0000000..7fa2920
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-ibmvnic
@@ -0,0 +1,14 @@
+What:		/sys/devices/vio/<our device>/failover
+Date:		June 2017
+KernelVersion:	4.13
+Contact:	linuxppc-dev@...ts.ozlabs.org
+Description:	If the ibmvnic device has been configured with redundant
+		physical NIC ports, the user may write "1" to the failover
+		file to trigger a device failover, which will reset the
+		ibmvnic device and swap to a backup physical port. If no
+		redundant physical port has been configured for the device,
+		the device will not reset and -EINVAL is returned. If anything
+		other than "1" is written to the file, -EINVAL will also be
+		returned.
+Users:		Any users of the ibmvnic driver which use redundant hardware
+		configurations.
-- 
1.8.3.1