dpdkstat plugin rework

[collectd.git] / src / utils_dpdk.h

diff --git a/src/utils_dpdk.h b/src/utils_dpdk.h
new file mode 100644 (file)
index 0000000..55ce180
--- /dev/null
+++ b/src/utils_dpdk.h
@@ -0,0 +1,95 @@
+/**
+ * collectd - src/utils_dpdk.h
+ * MIT License
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *   Maryam Tahhan <maryam.tahhan@intel.com>
+ *   Harry van Haaren <harry.van.haaren@intel.com>
+ *   Serhiy Pshyk <serhiyx.pshyk@intel.com>
+ **/
+
+#ifndef UTILS_DPDK_H
+#define UTILS_DPDK_H
+
+#include <rte_version.h>
+
+#define ERR_BUF_SIZE 1024
+
+#if RTE_VER_RELEASE == 16 && RTE_VER_MINOR == 0
+#if RTE_VER_MONTH == 4
+#define DPDK_VER_16_04 RTE_VERSION_NUM(16, 4, 0, 16)
+#endif
+#if RTE_VER_MONTH == 7
+#define DPDK_VER_16_07 RTE_VERSION_NUM(16, 7, 0, 16)
+#endif
+#endif
+
+enum DPDK_CMD {
+  DPDK_CMD_NONE = 0,
+  DPDK_CMD_QUIT,
+  DPDK_CMD_INIT,
+  DPDK_CMD_GET_STATS,
+  DPDK_CMD_GET_EVENTS,
+  __DPDK_CMD_LAST,
+};
+
+struct dpdk_eal_config_s {
+  char coremask[DATA_MAX_NAME_LEN];
+  char memory_channels[DATA_MAX_NAME_LEN];
+  char socket_memory[DATA_MAX_NAME_LEN];
+  char process_type[DATA_MAX_NAME_LEN];
+  char file_prefix[DATA_MAX_NAME_LEN];
+};
+typedef struct dpdk_eal_config_s dpdk_eal_config_t;
+
+struct uint128_s {
+  u_int64_t high;
+  u_int64_t low;
+};
+typedef struct uint128_s uint128_t;
+
+typedef struct dpdk_helper_ctx_s dpdk_helper_ctx_t;
+
+int dpdk_helper_init(const char *name, size_t data_size,
+                     dpdk_helper_ctx_t **pphc);
+int dpdk_helper_shutdown(dpdk_helper_ctx_t *phc);
+int dpdk_helper_eal_config_parse(dpdk_helper_ctx_t *phc, oconfig_item_t *ci);
+int dpdk_helper_eal_config_set(dpdk_helper_ctx_t *phc, dpdk_eal_config_t *ec);
+int dpdk_helper_eal_config_get(dpdk_helper_ctx_t *phc, dpdk_eal_config_t *ec);
+int dpdk_helper_command(dpdk_helper_ctx_t *phc, enum DPDK_CMD cmd, int *result,
+                        cdtime_t cmd_wait_time);
+void *dpdk_helper_priv_get(dpdk_helper_ctx_t *phc);
+int dpdk_helper_data_size_get(dpdk_helper_ctx_t *phc);
+
+/* forward declaration of handler function that is called by helper from
+ * child process. not implemented in helper. must be provided by client. */
+int dpdk_helper_command_handler(dpdk_helper_ctx_t *phc, enum DPDK_CMD cmd);
+
+uint128_t str_to_uint128(const char *str, int len);
+
+/* logging functions that should be used in child process */
+#define DPDK_CHILD_LOG(...) fprintf(stdout, __VA_ARGS__)
+#define DPDK_CHILD_TRACE(_name)                                                \
+  fprintf(stdout, "%s:%s:%d pid=%u\n", _name, __FUNCTION__, __LINE__, getpid())
+
+#endif /* UTILS_DPDK_H */