[PATCH] rtas_errd: Add support for cpu and memory hotplugging via RTAS event

This patch adds support for handling RTAS hotplug events for cpus and memory
blocks in addition to such events for pci devices. It includes additional
support for events indicating an addition or a removal of multiple cpus or
logical memory blocks. Finally, for debugging purposes, it includes the option
to handle the event without calling the drmgr command.

Signed-off-by: Thomas Falcon <[email protected]>
---
 rtas_errd/hotplug.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/rtas_errd/hotplug.c b/rtas_errd/hotplug.c
index 0f84f8d..91036b2 100644
--- a/rtas_errd/hotplug.c
+++ b/rtas_errd/hotplug.c
@@ -24,6 +24,7 @@ void handle_hotplug_event(struct event *re)
         pid_t child;
         int status, rc;
         char drc_index[11];
+	char count[4];
         char *drmgr_args[] = { DRMGR_PROGRAM_NOPATH, "-c", NULL, NULL, NULL,
                         NULL, NULL, "-d4", "-V", NULL};
 
@@ -39,6 +40,12 @@ void handle_hotplug_event(struct event *re)
                                 drmgr_args[2] = "pci";
                                 drmgr_args[6] = "-n";
                                 break;
+			case RTAS_HP_TYPE_CPU:
+				drmgr_args[2] = "cpu";
+				break;
+			case RTAS_HP_TYPE_MEMORY:
+				drmgr_args[2] = "mem";
+                                break;
                         default:
                                 dbg("Unknown or unsupported hotplug type %d\n",
 					hotplug->type);
@@ -63,6 +70,11 @@ void handle_hotplug_event(struct event *re)
                                 snprintf(drc_index, 11, "%#x", hotplug->u1.drc_index);
                                 drmgr_args[5] = drc_index;
                                 break;
+			case RTAS_HP_ID_DRC_COUNT:
+				drmgr_args[4] = "-q";
+				snprintf(count, 4, "%u", hotplug->u1.count);
+				drmgr_args[5] = count;
+				break;
                         default:
                                 dbg("Unknown or unsupported hotplug identifier %d\n",
 					hotplug->identifier);
@@ -73,6 +85,10 @@ void handle_hotplug_event(struct event *re)
                         drmgr_args[1], drmgr_args[2], drmgr_args[3],
                         drmgr_args[4], drmgr_args[5], drmgr_args[6]);
 
+#ifdef DEBUG
+		if(no_drmgr)
+			return;
+#endif
                 /* invoke drmgr */
                 dbg("Invoke drmgr command\n");
 
-- 
2.1.2


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