[dpdk-dev] [PATCH v2 7/8] examples/vm_power: add branch ratio policy type

[David Hunt]

Add the capability for the vm_power_manager to receive
a policy of type BRANCH_RATIO. This will add any vcpus
in the policy to the oob monitoring thread.

Signed-off-by: David Hunt <david.h...@intel.com>
---
 examples/vm_power_manager/channel_monitor.c | 23 +++++++++++++++++++--
 lib/librte_power/channel_commands.h         |  3 ++-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/examples/vm_power_manager/channel_monitor.c 
b/examples/vm_power_manager/channel_monitor.c
index 73bddd993..7fa47ba97 100644
--- a/examples/vm_power_manager/channel_monitor.c
+++ b/examples/vm_power_manager/channel_monitor.c
@@ -27,6 +27,7 @@
 #include "channel_commands.h"
 #include "channel_manager.h"
 #include "power_manager.h"
+#include "oob_monitor.h"
 
 #define RTE_LOGTYPE_CHANNEL_MONITOR RTE_LOGTYPE_USER1
 
@@ -92,6 +93,10 @@ get_pcpu_to_control(struct policy *pol)
        struct vm_info info;
        int pcpu, count;
        uint64_t mask_u64b;
+       struct core_info *ci;
+       int ret;
+
+       ci = get_core_info();
 
        RTE_LOG(INFO, CHANNEL_MONITOR, "Looking for pcpu for %s\n",
                        pol->pkt.vm_name);
@@ -100,8 +105,22 @@ get_pcpu_to_control(struct policy *pol)
        for (count = 0; count < pol->pkt.num_vcpu; count++) {
                mask_u64b = info.pcpu_mask[pol->pkt.vcpu_to_control[count]];
                for (pcpu = 0; mask_u64b; mask_u64b &= ~(1ULL << pcpu++)) {
-                       if ((mask_u64b >> pcpu) & 1)
-                               pol->core_share[count].pcpu = pcpu;
+                       if ((mask_u64b >> pcpu) & 1) {
+                               if (pol->pkt.policy_to_use == BRANCH_RATIO) {
+                                       ci->cd[pcpu].oob_enabled = 1;
+                                       ret = add_core_to_monitor(pcpu);
+                                       if (ret == 0)
+                                               printf("Monitoring pcpu %d via 
Branch Ratio\n",
+                                                               pcpu);
+                                       else
+                                               printf("Failed to start OOB 
Monitoring pcpu %d\n",
+                                                               pcpu);
+
+                               } else {
+                                       pol->core_share[count].pcpu = pcpu;
+                                       printf("Monitoring pcpu %d\n", pcpu);
+                               }
+                       }
                }
        }
 }
diff --git a/lib/librte_power/channel_commands.h 
b/lib/librte_power/channel_commands.h
index 5e8b4ab5d..ee638eefa 100644
--- a/lib/librte_power/channel_commands.h
+++ b/lib/librte_power/channel_commands.h
@@ -48,7 +48,8 @@ enum workload {HIGH, MEDIUM, LOW};
 enum policy_to_use {
        TRAFFIC,
        TIME,
-       WORKLOAD
+       WORKLOAD,
+       BRANCH_RATIO
 };
 
 struct traffic {
-- 
2.17.1