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-rw-r--r--src/spdk/test/nvme/reset/reset.c689
1 files changed, 689 insertions, 0 deletions
diff --git a/src/spdk/test/nvme/reset/reset.c b/src/spdk/test/nvme/reset/reset.c
new file mode 100644
index 00000000..fe2004e8
--- /dev/null
+++ b/src/spdk/test/nvme/reset/reset.c
@@ -0,0 +1,689 @@
+/*-
+ * 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/nvme.h"
+#include "spdk/env.h"
+#include "spdk/string.h"
+
+struct ctrlr_entry {
+ struct spdk_nvme_ctrlr *ctrlr;
+ struct ctrlr_entry *next;
+ char name[1024];
+};
+
+struct ns_entry {
+ struct spdk_nvme_ns *ns;
+ struct spdk_nvme_ctrlr *ctrlr;
+ struct ns_entry *next;
+ uint32_t io_size_blocks;
+ uint64_t size_in_ios;
+ char name[1024];
+};
+
+struct ns_worker_ctx {
+ struct ns_entry *entry;
+ struct spdk_nvme_qpair *qpair;
+ uint64_t io_completed;
+ uint64_t io_completed_error;
+ uint64_t io_submitted;
+ uint64_t current_queue_depth;
+ uint64_t offset_in_ios;
+ bool is_draining;
+
+ struct ns_worker_ctx *next;
+};
+
+struct reset_task {
+ struct ns_worker_ctx *ns_ctx;
+ void *buf;
+};
+
+struct worker_thread {
+ struct ns_worker_ctx *ns_ctx;
+ unsigned lcore;
+};
+
+static struct spdk_mempool *task_pool;
+
+static struct ctrlr_entry *g_controllers = NULL;
+static struct ns_entry *g_namespaces = NULL;
+static int g_num_namespaces = 0;
+static struct worker_thread *g_workers = NULL;
+
+static uint64_t g_tsc_rate;
+
+static int g_io_size_bytes;
+static int g_rw_percentage;
+static int g_is_random;
+static int g_queue_depth;
+static int g_time_in_sec;
+
+#define TASK_POOL_NUM 8192
+
+static void
+register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
+{
+ struct ns_entry *entry;
+ const struct spdk_nvme_ctrlr_data *cdata;
+
+ if (!spdk_nvme_ns_is_active(ns)) {
+ printf("Skipping inactive NS %u\n", spdk_nvme_ns_get_id(ns));
+ return;
+ }
+
+ entry = malloc(sizeof(struct ns_entry));
+ if (entry == NULL) {
+ perror("ns_entry malloc");
+ exit(1);
+ }
+
+ cdata = spdk_nvme_ctrlr_get_data(ctrlr);
+
+ entry->ns = ns;
+ entry->ctrlr = ctrlr;
+ entry->size_in_ios = spdk_nvme_ns_get_size(ns) /
+ g_io_size_bytes;
+ entry->io_size_blocks = g_io_size_bytes / spdk_nvme_ns_get_sector_size(ns);
+
+ snprintf(entry->name, 44, "%-20.20s (%-20.20s)", cdata->mn, cdata->sn);
+
+ g_num_namespaces++;
+ entry->next = g_namespaces;
+ g_namespaces = entry;
+}
+
+static void
+register_ctrlr(struct spdk_nvme_ctrlr *ctrlr)
+{
+ int nsid, num_ns;
+ struct spdk_nvme_ns *ns;
+ struct ctrlr_entry *entry = malloc(sizeof(struct ctrlr_entry));
+
+ if (entry == NULL) {
+ perror("ctrlr_entry malloc");
+ exit(1);
+ }
+
+ entry->ctrlr = ctrlr;
+ entry->next = g_controllers;
+ g_controllers = entry;
+
+ num_ns = spdk_nvme_ctrlr_get_num_ns(ctrlr);
+ for (nsid = 1; nsid <= num_ns; nsid++) {
+ ns = spdk_nvme_ctrlr_get_ns(ctrlr, nsid);
+ if (ns == NULL) {
+ continue;
+ }
+ register_ns(ctrlr, ns);
+ }
+}
+
+static void io_complete(void *ctx, const struct spdk_nvme_cpl *completion);
+
+static __thread unsigned int seed = 0;
+
+static void
+submit_single_io(struct ns_worker_ctx *ns_ctx)
+{
+ struct reset_task *task = NULL;
+ uint64_t offset_in_ios;
+ int rc;
+ struct ns_entry *entry = ns_ctx->entry;
+
+ task = spdk_mempool_get(task_pool);
+ if (!task) {
+ fprintf(stderr, "Failed to get task from task_pool\n");
+ exit(1);
+ }
+
+ task->buf = spdk_dma_zmalloc(g_io_size_bytes, 0x200, NULL);
+ if (!task->buf) {
+ spdk_dma_free(task->buf);
+ fprintf(stderr, "task->buf spdk_dma_zmalloc failed\n");
+ exit(1);
+ }
+
+ task->ns_ctx = ns_ctx;
+ task->ns_ctx->io_submitted++;
+
+ if (g_is_random) {
+ offset_in_ios = rand_r(&seed) % entry->size_in_ios;
+ } else {
+ offset_in_ios = ns_ctx->offset_in_ios++;
+ if (ns_ctx->offset_in_ios == entry->size_in_ios) {
+ ns_ctx->offset_in_ios = 0;
+ }
+ }
+
+ if ((g_rw_percentage == 100) ||
+ (g_rw_percentage != 0 && ((rand_r(&seed) % 100) < g_rw_percentage))) {
+ rc = spdk_nvme_ns_cmd_read(entry->ns, ns_ctx->qpair, task->buf,
+ offset_in_ios * entry->io_size_blocks,
+ entry->io_size_blocks, io_complete, task, 0);
+ } else {
+ rc = spdk_nvme_ns_cmd_write(entry->ns, ns_ctx->qpair, task->buf,
+ offset_in_ios * entry->io_size_blocks,
+ entry->io_size_blocks, io_complete, task, 0);
+ }
+
+ if (rc != 0) {
+ fprintf(stderr, "starting I/O failed\n");
+ }
+
+ ns_ctx->current_queue_depth++;
+}
+
+static void
+task_complete(struct reset_task *task, const struct spdk_nvme_cpl *completion)
+{
+ struct ns_worker_ctx *ns_ctx;
+
+ ns_ctx = task->ns_ctx;
+ ns_ctx->current_queue_depth--;
+
+ if (spdk_nvme_cpl_is_error(completion)) {
+ ns_ctx->io_completed_error++;
+ } else {
+ ns_ctx->io_completed++;
+ }
+
+ spdk_dma_free(task->buf);
+ spdk_mempool_put(task_pool, task);
+
+ /*
+ * is_draining indicates when time has expired for the test run
+ * and we are just waiting for the previously submitted I/O
+ * to complete. In this case, do not submit a new I/O to replace
+ * the one just completed.
+ */
+ if (!ns_ctx->is_draining) {
+ submit_single_io(ns_ctx);
+ }
+}
+
+static void
+io_complete(void *ctx, const struct spdk_nvme_cpl *completion)
+{
+ task_complete((struct reset_task *)ctx, completion);
+}
+
+static void
+check_io(struct ns_worker_ctx *ns_ctx)
+{
+ spdk_nvme_qpair_process_completions(ns_ctx->qpair, 0);
+}
+
+static void
+submit_io(struct ns_worker_ctx *ns_ctx, int queue_depth)
+{
+ while (queue_depth-- > 0) {
+ submit_single_io(ns_ctx);
+ }
+}
+
+static void
+drain_io(struct ns_worker_ctx *ns_ctx)
+{
+ ns_ctx->is_draining = true;
+ while (ns_ctx->current_queue_depth > 0) {
+ check_io(ns_ctx);
+ }
+}
+
+static int
+work_fn(void *arg)
+{
+ uint64_t tsc_end = spdk_get_ticks() + g_time_in_sec * g_tsc_rate;
+ struct worker_thread *worker = (struct worker_thread *)arg;
+ struct ns_worker_ctx *ns_ctx = NULL;
+ bool did_reset = false;
+
+ printf("Starting thread on core %u\n", worker->lcore);
+
+ /* Submit initial I/O for each namespace. */
+ ns_ctx = worker->ns_ctx;
+ while (ns_ctx != NULL) {
+ ns_ctx->qpair = spdk_nvme_ctrlr_alloc_io_qpair(ns_ctx->entry->ctrlr, NULL, 0);
+ if (ns_ctx->qpair == NULL) {
+ fprintf(stderr, "spdk_nvme_ctrlr_alloc_io_qpair() failed on core %u\n", worker->lcore);
+ return -1;
+ }
+ submit_io(ns_ctx, g_queue_depth);
+ ns_ctx = ns_ctx->next;
+ }
+
+ while (1) {
+ /*
+ * Check for completed I/O for each controller. A new
+ * I/O will be submitted in the io_complete callback
+ * to replace each I/O that is completed.
+ */
+ ns_ctx = worker->ns_ctx;
+ while (ns_ctx != NULL) {
+ check_io(ns_ctx);
+ ns_ctx = ns_ctx->next;
+ }
+
+ if (!did_reset && ((tsc_end - spdk_get_ticks()) / g_tsc_rate) > (uint64_t)g_time_in_sec / 2) {
+ ns_ctx = worker->ns_ctx;
+ while (ns_ctx != NULL) {
+ if (spdk_nvme_ctrlr_reset(ns_ctx->entry->ctrlr) < 0) {
+ fprintf(stderr, "nvme reset failed.\n");
+ return -1;
+ }
+ ns_ctx = ns_ctx->next;
+ }
+ did_reset = true;
+ }
+
+ if (spdk_get_ticks() > tsc_end) {
+ break;
+ }
+ }
+
+ ns_ctx = worker->ns_ctx;
+ while (ns_ctx != NULL) {
+ drain_io(ns_ctx);
+ spdk_nvme_ctrlr_free_io_qpair(ns_ctx->qpair);
+ ns_ctx = ns_ctx->next;
+ }
+
+ return 0;
+}
+
+static void usage(char *program_name)
+{
+ printf("%s options", program_name);
+ printf("\n");
+ printf("\t[-q io depth]\n");
+ printf("\t[-s io size in bytes]\n");
+ printf("\t[-w io pattern type, must be one of\n");
+ printf("\t\t(read, write, randread, randwrite, rw, randrw)]\n");
+ printf("\t[-M rwmixread (100 for reads, 0 for writes)]\n");
+ printf("\t[-t time in seconds(should be larger than 15 seconds)]\n");
+ printf("\t[-m max completions per poll]\n");
+ printf("\t\t(default:0 - unlimited)\n");
+}
+
+static int
+print_stats(void)
+{
+ uint64_t io_completed, io_submitted, io_completed_error;
+ uint64_t total_completed_io, total_submitted_io, total_completed_err_io;
+ struct worker_thread *worker;
+ struct ns_worker_ctx *ns_ctx;
+
+ total_completed_io = 0;
+ total_submitted_io = 0;
+ total_completed_err_io = 0;
+
+ worker = g_workers;
+ ns_ctx = worker->ns_ctx;
+ while (ns_ctx) {
+ io_completed = ns_ctx->io_completed;
+ io_submitted = ns_ctx->io_submitted;
+ io_completed_error = ns_ctx->io_completed_error;
+ total_completed_io += io_completed;
+ total_submitted_io += io_submitted;
+ total_completed_err_io += io_completed_error;
+ ns_ctx = ns_ctx->next;
+ }
+
+ printf("========================================================\n");
+ printf("%16lu IO completed successfully\n", total_completed_io);
+ printf("%16lu IO completed with error\n", total_completed_err_io);
+ printf("--------------------------------------------------------\n");
+ printf("%16lu IO completed total\n", total_completed_io + total_completed_err_io);
+ printf("%16lu IO submitted\n", total_submitted_io);
+
+ if (total_submitted_io != (total_completed_io + total_completed_err_io)) {
+ fprintf(stderr, "Some IO are missing......\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+parse_args(int argc, char **argv)
+{
+ const char *workload_type;
+ int op;
+ bool mix_specified = false;
+
+ /* default value */
+ g_queue_depth = 0;
+ g_io_size_bytes = 0;
+ workload_type = NULL;
+ g_time_in_sec = 0;
+ g_rw_percentage = -1;
+
+ while ((op = getopt(argc, argv, "m:q:s:t:w:M:")) != -1) {
+ switch (op) {
+ case 'q':
+ g_queue_depth = atoi(optarg);
+ break;
+ case 's':
+ g_io_size_bytes = atoi(optarg);
+ break;
+ case 't':
+ g_time_in_sec = atoi(optarg);
+ break;
+ case 'w':
+ workload_type = optarg;
+ break;
+ case 'M':
+ g_rw_percentage = atoi(optarg);
+ mix_specified = true;
+ break;
+ default:
+ usage(argv[0]);
+ return 1;
+ }
+ }
+
+ if (!g_queue_depth) {
+ usage(argv[0]);
+ return 1;
+ }
+ if (!g_io_size_bytes) {
+ usage(argv[0]);
+ return 1;
+ }
+ if (!workload_type) {
+ usage(argv[0]);
+ return 1;
+ }
+ if (!g_time_in_sec) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ if (strcmp(workload_type, "read") &&
+ strcmp(workload_type, "write") &&
+ strcmp(workload_type, "randread") &&
+ strcmp(workload_type, "randwrite") &&
+ strcmp(workload_type, "rw") &&
+ strcmp(workload_type, "randrw")) {
+ fprintf(stderr,
+ "io pattern type must be one of\n"
+ "(read, write, randread, randwrite, rw, randrw)\n");
+ return 1;
+ }
+
+ if (!strcmp(workload_type, "read") ||
+ !strcmp(workload_type, "randread")) {
+ g_rw_percentage = 100;
+ }
+
+ if (!strcmp(workload_type, "write") ||
+ !strcmp(workload_type, "randwrite")) {
+ g_rw_percentage = 0;
+ }
+
+ if (!strcmp(workload_type, "read") ||
+ !strcmp(workload_type, "randread") ||
+ !strcmp(workload_type, "write") ||
+ !strcmp(workload_type, "randwrite")) {
+ if (mix_specified) {
+ fprintf(stderr, "Ignoring -M option... Please use -M option"
+ " only when using rw or randrw.\n");
+ }
+ }
+
+ if (!strcmp(workload_type, "rw") ||
+ !strcmp(workload_type, "randrw")) {
+ if (g_rw_percentage < 0 || g_rw_percentage > 100) {
+ fprintf(stderr,
+ "-M must be specified to value from 0 to 100 "
+ "for rw or randrw.\n");
+ return 1;
+ }
+ }
+
+ if (!strcmp(workload_type, "read") ||
+ !strcmp(workload_type, "write") ||
+ !strcmp(workload_type, "rw")) {
+ g_is_random = 0;
+ } else {
+ g_is_random = 1;
+ }
+
+ return 0;
+}
+
+static int
+register_workers(void)
+{
+ struct worker_thread *worker;
+
+ worker = malloc(sizeof(struct worker_thread));
+ if (worker == NULL) {
+ perror("worker_thread malloc");
+ return -1;
+ }
+
+ memset(worker, 0, sizeof(struct worker_thread));
+ worker->lcore = spdk_env_get_current_core();
+
+ g_workers = worker;
+
+ return 0;
+}
+
+
+static bool
+probe_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,
+ struct spdk_nvme_ctrlr_opts *opts)
+{
+ return true;
+}
+
+static void
+attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,
+ struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_ctrlr_opts *opts)
+{
+ register_ctrlr(ctrlr);
+}
+
+static int
+register_controllers(void)
+{
+ printf("Initializing NVMe Controllers\n");
+
+ if (spdk_nvme_probe(NULL, NULL, probe_cb, attach_cb, NULL) != 0) {
+ fprintf(stderr, "spdk_nvme_probe() failed\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static void
+unregister_controllers(void)
+{
+ struct ctrlr_entry *entry = g_controllers;
+
+ while (entry) {
+ struct ctrlr_entry *next = entry->next;
+ spdk_nvme_detach(entry->ctrlr);
+ free(entry);
+ entry = next;
+ }
+}
+
+static int
+associate_workers_with_ns(void)
+{
+ struct ns_entry *entry = g_namespaces;
+ struct worker_thread *worker = g_workers;
+ struct ns_worker_ctx *ns_ctx;
+ int i, count;
+
+ count = g_num_namespaces;
+
+ for (i = 0; i < count; i++) {
+ if (entry == NULL) {
+ break;
+ }
+ ns_ctx = malloc(sizeof(struct ns_worker_ctx));
+ if (!ns_ctx) {
+ return -1;
+ }
+ memset(ns_ctx, 0, sizeof(*ns_ctx));
+
+ printf("Associating %s with lcore %d\n", entry->name, worker->lcore);
+ ns_ctx->entry = entry;
+ ns_ctx->next = worker->ns_ctx;
+ worker->ns_ctx = ns_ctx;
+
+ worker = g_workers;
+
+ entry = entry->next;
+ if (entry == NULL) {
+ entry = g_namespaces;
+ }
+ }
+
+ return 0;
+}
+
+static int
+run_nvme_reset_cycle(int retry_count)
+{
+ struct worker_thread *worker;
+ struct ns_worker_ctx *ns_ctx;
+
+ spdk_nvme_retry_count = retry_count;
+
+ if (work_fn(g_workers) != 0) {
+ return -1;
+ }
+
+ if (print_stats() != 0) {
+ return -1;
+ }
+
+ worker = g_workers;
+ ns_ctx = worker->ns_ctx;
+ while (ns_ctx != NULL) {
+ ns_ctx->io_completed = 0;
+ ns_ctx->io_completed_error = 0;
+ ns_ctx->io_submitted = 0;
+ ns_ctx->is_draining = false;
+ ns_ctx = ns_ctx->next;
+ }
+
+ return 0;
+}
+
+static void
+spdk_reset_free_tasks(void)
+{
+ if (spdk_mempool_count(task_pool) != TASK_POOL_NUM) {
+ fprintf(stderr, "task_pool count is %zu but should be %d\n",
+ spdk_mempool_count(task_pool), TASK_POOL_NUM);
+ }
+ spdk_mempool_free(task_pool);
+}
+
+int main(int argc, char **argv)
+{
+ int rc;
+ int i;
+ struct spdk_env_opts opts;
+
+
+ rc = parse_args(argc, argv);
+ if (rc != 0) {
+ return rc;
+ }
+
+ spdk_env_opts_init(&opts);
+ opts.name = "reset";
+ opts.core_mask = "0x1";
+ opts.shm_id = 0;
+ if (spdk_env_init(&opts) < 0) {
+ fprintf(stderr, "Unable to initialize SPDK env\n");
+ return 1;
+ }
+
+ if (register_controllers() != 0) {
+ return 1;
+ }
+
+ if (!g_controllers) {
+ printf("No NVMe controller found, %s exiting\n", argv[0]);
+ return 1;
+ }
+
+ task_pool = spdk_mempool_create("task_pool", TASK_POOL_NUM,
+ sizeof(struct reset_task),
+ 64, SPDK_ENV_SOCKET_ID_ANY);
+ if (!task_pool) {
+ fprintf(stderr, "Cannot create task pool\n");
+ return 1;
+ }
+
+ g_tsc_rate = spdk_get_ticks_hz();
+
+ if (register_workers() != 0) {
+ return 1;
+ }
+
+ if (associate_workers_with_ns() != 0) {
+ rc = 1;
+ goto cleanup;
+ }
+
+ printf("Initialization complete. Launching workers.\n");
+
+ for (i = 2; i >= 0; i--) {
+ rc = run_nvme_reset_cycle(i);
+ if (rc != 0) {
+ goto cleanup;
+ }
+ }
+
+cleanup:
+ unregister_controllers();
+ spdk_reset_free_tasks();
+
+ if (rc != 0) {
+ fprintf(stderr, "%s: errors occured\n", argv[0]);
+ }
+
+ return rc;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 08:15:42 +0000