[iRMC] Handle IPMI incompatibility in iRMC S6 2.x

Since iRMC S6 2.00, iRMC firmware disables IPMI over LAN
with default iRMC firmware configuration.

To deal with this firmware incompatibility, this commit
modifies driver's methods which use IPMI to first try
IPMI and, if IPMI fails, try to use Redfish API.

Story: 2010396
Task: 46746
Change-Id: I1730279d2225f1248ecf7fe403a5e503b6c3ff87

1 files changed, 15 insertions, 0 deletions

diff --git a/releasenotes/notes/fix-irmc-s6-2.00-ipmi-incompatibility-118484a424df02b1.yaml b/releasenotes/notes/fix-irmc-s6-2.00-ipmi-incompatibility-118484a424df02b1.yaml
new file mode 100644
index 000000000..4e4875f2c
--- /dev/null
+++ b/releasenotes/notes/fix-irmc-s6-2.00-ipmi-incompatibility-118484a424df02b1.yaml
@@ -0,0 +1,15 @@
+---
+fixes:
+  - |
+    Fixes a firmware incompatibility issue with iRMC versions S6 2.00
+    and later now doesn't support IPMI over LAN by default.
+    To deal with this problem, irmc driver first tries IPMI operation then,
+    if IPMI operation fails, it tries Redfish API of Fujitsu server.
+    The operator must set Redfish parameters in the ``driver_info``
+    if iRMC disable or doesn't support IPMI over LAN.
+upgrade:
+  - |
+    When Ironic operator uses irmc driver against Fujitsu server which runs
+    iRMC version S6 2.00 or later, operator may need to set Redfish parameters
+    in ``driver_info`` so this fix can operate properly or operator should
+    enable IPMI over LAN through BMC settings, if possible.