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From: Alan Carew <alan.carew@intel.com>
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Subject: [dpdk-dev] [PATCH v2 08/10] Packet format for VM Power
Management(Host and Guest).
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Provides a command packet format for host and guest.
Signed-off-by: Alan Carew <alan.carew@intel.com>
---
lib/librte_power/channel_commands.h | 68 +++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 lib/librte_power/channel_commands.h
diff --git a/lib/librte_power/channel_commands.h b/lib/librte_power/channel_commands.h
new file mode 100644
index 0000000..e33e85b
--- /dev/null
+++ b/lib/librte_power/channel_commands.h
@@ -0,0 +1,68 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CHANNEL_COMMANDS_H_
+#define CHANNEL_COMMANDS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <rte_config.h>
+
+#if RTE_MAX_LCORE > 64
+#error Maximum number of cores and channels is 64, overflow is guaranteed to \
+ cause problems with VM Power Management
+#endif
+
+#define CPU_POWER 1
+#define CPU_POWER_CONNECT 2
+
+#define CPU_SCALE_UP 1
+#define CPU_SCALE_DOWN 2
+#define CPU_SCALE_MAX 3
+#define CPU_SCALE_MIN 4
+
+struct channel_packet {
+ uint64_t resource_id; /* core_num, device */
+ uint32_t unit; /* scale down/up/min/max */
+ uint32_t command; /* Power, IO, etc */
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CHANNEL_COMMANDS_H_ */
--
1.9.3