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From: Hajkowski <marcinx.hajkowski@intel.com>
To: david.hunt@intel.com
Cc: dev@dpdk.org,
Marcin Hajkowski <marcinx.hajkowski@intel.com>
Date: Thu, 30 May 2019 18:15:16 +0200
Message-Id: <20190530161517.11916-3-marcinx.hajkowski@intel.com>
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Subject: [dpdk-dev] [PATCH 2/3] examples/power_manager: send cpu
capabilities on vm request
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From: Marcin Hajkowski <marcinx.hajkowski@intel.com>
Send capabilities for requested cores.
Signed-off-by: Marcin Hajkowski <marcinx.hajkowski@intel.com>
---
examples/vm_power_manager/channel_monitor.c | 67 +++++++++++++++++++++
1 file changed, 67 insertions(+)
diff --git a/examples/vm_power_manager/channel_monitor.c b/examples/vm_power_manager/channel_monitor.c
index bfd9cc38d..731b3b480 100644
--- a/examples/vm_power_manager/channel_monitor.c
+++ b/examples/vm_power_manager/channel_monitor.c
@@ -29,6 +29,7 @@
#include <rte_cycles.h>
#include <rte_ethdev.h>
#include <rte_pmd_i40e.h>
+#include <rte_power.h>
#include <libvirt/libvirt.h>
#include "channel_monitor.h"
@@ -704,6 +705,60 @@ send_freq(struct channel_packet *pkt,
chan_info);
}
+static int
+send_capabilities(struct channel_packet *pkt,
+ struct channel_info *chan_info,
+ bool list_requested)
+{
+ unsigned int vcore_id = pkt->resource_id;
+ struct channel_packet_caps_list channel_pkt_caps_list;
+ struct vm_info info;
+ struct rte_power_core_capabilities caps;
+ int ret;
+
+ if (get_info_vm(pkt->vm_name, &info) != 0)
+ return -1;
+
+ if (!list_requested && vcore_id >= MAX_VCPU_PER_VM)
+ return -1;
+
+ if (!info.allow_query)
+ return -1;
+
+ channel_pkt_caps_list.command = CPU_POWER_CAPS_LIST;
+ channel_pkt_caps_list.num_vcpu = info.num_vcpus;
+
+ if (list_requested) {
+ unsigned int i;
+ for (i = 0; i < info.num_vcpus; i++) {
+ ret = rte_power_get_capabilities(info.pcpu_map[i],
+ &caps);
+ if (ret == 0) {
+ channel_pkt_caps_list.turbo[i] =
+ caps.turbo;
+ channel_pkt_caps_list.priority[i] =
+ caps.priority;
+ } else
+ return -1;
+
+ }
+ } else {
+ ret = rte_power_get_capabilities(info.pcpu_map[vcore_id],
+ &caps);
+ if (ret == 0) {
+ channel_pkt_caps_list.turbo[vcore_id] =
+ caps.turbo;
+ channel_pkt_caps_list.priority[vcore_id] =
+ caps.priority;
+ } else
+ return -1;
+ }
+
+ return write_binary_packet(&channel_pkt_caps_list,
+ sizeof(channel_pkt_caps_list),
+ chan_info);
+}
+
static int
send_ack_for_received_cmd(struct channel_packet *pkt,
struct channel_info *chan_info,
@@ -812,6 +867,18 @@ process_request(struct channel_packet *pkt, struct channel_info *chan_info)
RTE_LOG(ERR, CHANNEL_MONITOR, "Error during frequency sending.\n");
}
+ if (pkt->command == CPU_POWER_QUERY_CAPS_LIST ||
+ pkt->command == CPU_POWER_QUERY_CAPS) {
+
+ RTE_LOG(INFO, CHANNEL_MONITOR,
+ "Capabilities for %s requested.\n", pkt->vm_name);
+ int ret = send_capabilities(pkt,
+ chan_info,
+ pkt->command == CPU_POWER_QUERY_CAPS_LIST);
+ if (ret < 0)
+ RTE_LOG(ERR, CHANNEL_MONITOR, "Error during sending capabilities.\n");
+ }
+
/*
* Return is not checked as channel status may have been set to DISABLED
* from management thread
--
2.17.2