app: Initial patch for spdk_top application

For now spdk_top only acquires data using RPC commands.
Next patches will add ncurses interface and expose
all the data.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I6ad5835a534d74e8aad868713cea43eb83e0d74f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1043
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Maciej Szwed 2020-04-14 09:01:41 +02:00 committed by Tomasz Zawadzki
parent 6d3ee83621
commit 68731c59d7
4 changed files with 417 additions and 0 deletions

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@ -41,6 +41,7 @@ DIRS-y += iscsi_top
DIRS-y += iscsi_tgt
DIRS-y += spdk_tgt
DIRS-y += spdk_lspci
DIRS-y += spdk_top
ifeq ($(OS),Linux)
DIRS-$(CONFIG_VHOST) += vhost
endif

1
app/spdk_top/.gitignore vendored Normal file
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@ -0,0 +1 @@
spdk_top

43
app/spdk_top/Makefile Normal file
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@ -0,0 +1,43 @@
#
# BSD LICENSE
#
# Copyright (c) Intel Corporation.
# 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.
#
SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)
include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
APP = spdk_top
C_SRCS := spdk_top.c
SPDK_LIB_LIST = jsonrpc json rpc log util
include $(SPDK_ROOT_DIR)/mk/spdk.app.mk

372
app/spdk_top/spdk_top.c Normal file
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@ -0,0 +1,372 @@
/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* 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.
*/
#include "spdk/stdinc.h"
#include "spdk/jsonrpc.h"
#include "spdk/rpc.h"
#include "spdk/event.h"
#include "spdk/util.h"
#define RPC_MAX_THREADS 1024
#define RPC_MAX_POLLERS 1024
struct spdk_jsonrpc_client *g_rpc_client;
struct rpc_thread_info {
char *name;
uint64_t id;
char *cpumask;
uint64_t busy;
uint64_t idle;
uint64_t active_pollers_count;
uint64_t timed_pollers_count;
uint64_t paused_pollers_count;
};
struct rpc_threads {
uint64_t threads_count;
struct rpc_thread_info thread_info[RPC_MAX_THREADS];
};
struct rpc_threads_stats {
uint64_t tick_rate;
struct rpc_threads threads;
};
struct rpc_poller_info {
char *name;
char *state;
uint64_t run_count;
uint64_t busy_count;
uint64_t period_ticks;
};
struct rpc_pollers {
uint64_t pollers_count;
struct rpc_poller_info pollers[RPC_MAX_POLLERS];
};
struct rpc_poller_thread_info {
char *name;
struct rpc_pollers active_pollers;
struct rpc_pollers timed_pollers;
struct rpc_pollers paused_pollers;
};
struct rpc_pollers_threads {
uint64_t threads_count;
struct rpc_poller_thread_info threads[RPC_MAX_THREADS];
};
struct rpc_pollers_stats {
uint64_t tick_rate;
struct rpc_pollers_threads pollers_threads;
};
struct rpc_threads_stats g_threads_stats;
struct rpc_pollers_stats g_pollers_stats;
static void
free_rpc_threads_stats(struct rpc_threads_stats *req)
{
uint64_t i;
for (i = 0; i < req->threads.threads_count; i++) {
free(req->threads.thread_info[i].name);
req->threads.thread_info[i].name = NULL;
free(req->threads.thread_info[i].cpumask);
req->threads.thread_info[i].cpumask = NULL;
}
}
static const struct spdk_json_object_decoder rpc_thread_info_decoders[] = {
{"name", offsetof(struct rpc_thread_info, name), spdk_json_decode_string},
{"id", offsetof(struct rpc_thread_info, id), spdk_json_decode_uint64},
{"cpumask", offsetof(struct rpc_thread_info, cpumask), spdk_json_decode_string},
{"busy", offsetof(struct rpc_thread_info, busy), spdk_json_decode_uint64},
{"idle", offsetof(struct rpc_thread_info, idle), spdk_json_decode_uint64},
{"active_pollers_count", offsetof(struct rpc_thread_info, active_pollers_count), spdk_json_decode_uint64},
{"timed_pollers_count", offsetof(struct rpc_thread_info, timed_pollers_count), spdk_json_decode_uint64},
{"paused_pollers_count", offsetof(struct rpc_thread_info, paused_pollers_count), spdk_json_decode_uint64},
};
static int
rpc_decode_threads_object(const struct spdk_json_val *val, void *out)
{
struct rpc_thread_info *info = out;
return spdk_json_decode_object(val, rpc_thread_info_decoders,
SPDK_COUNTOF(rpc_thread_info_decoders), info);
}
static int
rpc_decode_threads_array(const struct spdk_json_val *val, void *out)
{
struct rpc_threads *threads = out;
return spdk_json_decode_array(val, rpc_decode_threads_object, threads->thread_info, RPC_MAX_THREADS,
&threads->threads_count, sizeof(struct rpc_thread_info));
}
static const struct spdk_json_object_decoder rpc_threads_stats_decoders[] = {
{"tick_rate", offsetof(struct rpc_threads_stats, tick_rate), spdk_json_decode_uint64},
{"threads", offsetof(struct rpc_threads_stats, threads), rpc_decode_threads_array},
};
static void
free_rpc_poller(struct rpc_poller_info *poller)
{
free(poller->name);
poller->name = NULL;
free(poller->state);
poller->state = NULL;
}
static void
free_rpc_pollers_stats(struct rpc_pollers_stats *req)
{
struct rpc_poller_thread_info *thread;
uint64_t i, j;
for (i = 0; i < req->pollers_threads.threads_count; i++) {
thread = &req->pollers_threads.threads[i];
for (j = 0; j < thread->active_pollers.pollers_count; j++) {
free_rpc_poller(&thread->active_pollers.pollers[j]);
}
for (j = 0; j < thread->timed_pollers.pollers_count; j++) {
free_rpc_poller(&thread->timed_pollers.pollers[j]);
}
for (j = 0; j < thread->paused_pollers.pollers_count; j++) {
free_rpc_poller(&thread->paused_pollers.pollers[j]);
}
free(thread->name);
thread->name = NULL;
}
}
static const struct spdk_json_object_decoder rpc_pollers_decoders[] = {
{"name", offsetof(struct rpc_poller_info, name), spdk_json_decode_string},
{"state", offsetof(struct rpc_poller_info, state), spdk_json_decode_string},
{"run_count", offsetof(struct rpc_poller_info, run_count), spdk_json_decode_uint64},
{"busy_count", offsetof(struct rpc_poller_info, busy_count), spdk_json_decode_uint64},
{"period_ticks", offsetof(struct rpc_poller_info, period_ticks), spdk_json_decode_uint64, true},
};
static int
rpc_decode_pollers_object(const struct spdk_json_val *val, void *out)
{
struct rpc_poller_info *info = out;
return spdk_json_decode_object(val, rpc_pollers_decoders, SPDK_COUNTOF(rpc_pollers_decoders), info);
}
static int
rpc_decode_pollers_array(const struct spdk_json_val *val, void *out)
{
struct rpc_pollers *pollers = out;
return spdk_json_decode_array(val, rpc_decode_pollers_object, pollers->pollers, RPC_MAX_THREADS,
&pollers->pollers_count, sizeof(struct rpc_poller_info));
}
static const struct spdk_json_object_decoder rpc_pollers_threads_decoders[] = {
{"name", offsetof(struct rpc_poller_thread_info, name), spdk_json_decode_string},
{"active_pollers", offsetof(struct rpc_poller_thread_info, active_pollers), rpc_decode_pollers_array},
{"timed_pollers", offsetof(struct rpc_poller_thread_info, timed_pollers), rpc_decode_pollers_array},
{"paused_pollers", offsetof(struct rpc_poller_thread_info, paused_pollers), rpc_decode_pollers_array},
};
static int
rpc_decode_pollers_threads_object(const struct spdk_json_val *val, void *out)
{
struct rpc_poller_thread_info *info = out;
return spdk_json_decode_object(val, rpc_pollers_threads_decoders,
SPDK_COUNTOF(rpc_pollers_threads_decoders), info);
}
static int
rpc_decode_pollers_threads_array(const struct spdk_json_val *val, void *out)
{
struct rpc_pollers_threads *pollers_threads = out;
return spdk_json_decode_array(val, rpc_decode_pollers_threads_object, pollers_threads->threads,
RPC_MAX_THREADS, &pollers_threads->threads_count, sizeof(struct rpc_poller_thread_info));
}
static const struct spdk_json_object_decoder rpc_pollers_stats_decoders[] = {
{"tick_rate", offsetof(struct rpc_pollers_stats, tick_rate), spdk_json_decode_uint64},
{"threads", offsetof(struct rpc_pollers_stats, pollers_threads), rpc_decode_pollers_threads_array},
};
static int
rpc_send_req(char *rpc_name, struct spdk_jsonrpc_client_response **resp)
{
struct spdk_jsonrpc_client_response *json_resp = NULL;
struct spdk_json_write_ctx *w;
struct spdk_jsonrpc_client_request *request;
int rc;
request = spdk_jsonrpc_client_create_request();
if (request == NULL) {
return -ENOMEM;
}
w = spdk_jsonrpc_begin_request(request, 1, rpc_name);
spdk_jsonrpc_end_request(request, w);
spdk_jsonrpc_client_send_request(g_rpc_client, request);
do {
rc = spdk_jsonrpc_client_poll(g_rpc_client, 1);
} while (rc == 0 || rc == -ENOTCONN);
if (rc <= 0) {
printf("Failed to get response: %d\n", rc);
return -1;
}
json_resp = spdk_jsonrpc_client_get_response(g_rpc_client);
if (json_resp == NULL) {
printf("spdk_jsonrpc_client_get_response() failed\n");
return -1;
}
/* Check for error response */
if (json_resp->error != NULL) {
printf("Unexpected error response\n");
return -1;
}
assert(json_resp->result);
*resp = json_resp;
return 0;
}
static int
get_data(void)
{
struct spdk_jsonrpc_client_response *json_resp = NULL;
int rc = 0;
rc = rpc_send_req("thread_get_stats", &json_resp);
if (rc) {
goto end;
}
/* Decode json */
memset(&g_threads_stats, 0, sizeof(g_threads_stats));
if (spdk_json_decode_object(json_resp->result, rpc_threads_stats_decoders,
SPDK_COUNTOF(rpc_threads_stats_decoders), &g_threads_stats)) {
rc = -EINVAL;
goto end;
}
spdk_jsonrpc_client_free_response(json_resp);
rc = rpc_send_req("thread_get_pollers", &json_resp);
if (rc) {
goto end;
}
/* Decode json */
memset(&g_pollers_stats, 0, sizeof(g_pollers_stats));
if (spdk_json_decode_object(json_resp->result, rpc_pollers_stats_decoders,
SPDK_COUNTOF(rpc_pollers_stats_decoders), &g_pollers_stats)) {
rc = -EINVAL;
goto end;
}
end:
spdk_jsonrpc_client_free_response(json_resp);
return rc;
}
static void
free_data(void)
{
free_rpc_threads_stats(&g_threads_stats);
free_rpc_pollers_stats(&g_pollers_stats);
}
static void
usage(const char *program_name)
{
printf("%s [options]", program_name);
printf("\n");
printf("options:\n");
printf(" -r <path> RPC listen address (default: /var/tmp/spdk.sock\n");
printf(" -h show this usage\n");
}
int main(int argc, char **argv)
{
int op, rc;
char *socket = SPDK_DEFAULT_RPC_ADDR;
while ((op = getopt(argc, argv, "r:h")) != -1) {
switch (op) {
case 'r':
socket = optarg;
break;
case 'H':
default:
usage(argv[0]);
return 1;
}
}
g_rpc_client = spdk_jsonrpc_client_connect(socket, AF_UNIX);
if (!g_rpc_client) {
fprintf(stderr, "spdk_jsonrpc_client_connect() failed: %d\n", errno);
return 1;
}
rc = get_data();
if (rc) {
fprintf(stderr, "Error occurred while getting required data from SPDK: %d\n", rc);
free_data();
return 1;
}
free_data();
spdk_jsonrpc_client_close(g_rpc_client);
return (0);
}