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-rw-r--r--src/spdk/examples/ioat/verify/verify.c517
1 files changed, 517 insertions, 0 deletions
diff --git a/src/spdk/examples/ioat/verify/verify.c b/src/spdk/examples/ioat/verify/verify.c
new file mode 100644
index 00000000..c344ba82
--- /dev/null
+++ b/src/spdk/examples/ioat/verify/verify.c
@@ -0,0 +1,517 @@
+/*-
+ * 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/ioat.h"
+#include "spdk/env.h"
+#include "spdk/queue.h"
+#include "spdk/string.h"
+#include "spdk/util.h"
+
+#define SRC_BUFFER_SIZE (512*1024)
+
+enum ioat_task_type {
+ IOAT_COPY_TYPE,
+ IOAT_FILL_TYPE,
+};
+
+struct user_config {
+ int queue_depth;
+ int time_in_sec;
+ char *core_mask;
+};
+
+struct ioat_device {
+ struct spdk_ioat_chan *ioat;
+ TAILQ_ENTRY(ioat_device) tailq;
+};
+
+static TAILQ_HEAD(, ioat_device) g_devices;
+static struct ioat_device *g_next_device;
+
+static struct user_config g_user_config;
+
+struct thread_entry {
+ struct spdk_ioat_chan *chan;
+ uint64_t xfer_completed;
+ uint64_t xfer_failed;
+ uint64_t fill_completed;
+ uint64_t fill_failed;
+ uint64_t current_queue_depth;
+ unsigned lcore_id;
+ bool is_draining;
+ bool init_failed;
+ struct spdk_mempool *data_pool;
+ struct spdk_mempool *task_pool;
+};
+
+struct ioat_task {
+ enum ioat_task_type type;
+ struct thread_entry *thread_entry;
+ void *buffer;
+ int len;
+ uint64_t fill_pattern;
+ void *src;
+ void *dst;
+};
+
+static __thread unsigned int seed = 0;
+
+static unsigned char *g_src;
+
+static void submit_single_xfer(struct ioat_task *ioat_task);
+
+static void
+construct_user_config(struct user_config *self)
+{
+ self->queue_depth = 32;
+ self->time_in_sec = 10;
+ self->core_mask = "0x1";
+}
+
+static void
+dump_user_config(struct user_config *self)
+{
+ printf("User configuration:\n");
+ printf("Run time: %u seconds\n", self->time_in_sec);
+ printf("Core mask: %s\n", self->core_mask);
+ printf("Queue depth: %u\n", self->queue_depth);
+}
+
+static void
+ioat_exit(void)
+{
+ struct ioat_device *dev;
+
+ while (!TAILQ_EMPTY(&g_devices)) {
+ dev = TAILQ_FIRST(&g_devices);
+ TAILQ_REMOVE(&g_devices, dev, tailq);
+ if (dev->ioat) {
+ spdk_ioat_detach(dev->ioat);
+ }
+ free(dev);
+ }
+}
+static void prepare_ioat_task(struct thread_entry *thread_entry, struct ioat_task *ioat_task)
+{
+ int len;
+ uintptr_t src_offset;
+ uintptr_t dst_offset;
+ uint64_t fill_pattern;
+
+ if (ioat_task->type == IOAT_FILL_TYPE) {
+ fill_pattern = rand_r(&seed);
+ fill_pattern = fill_pattern << 32 | rand_r(&seed);
+
+ /* Ensure that the length of memset block is 8 Bytes aligned.
+ * In case the buffer crosses hugepage boundary and must be split,
+ * we also need to ensure 8 byte address alignment. We do it
+ * unconditionally to keep things simple.
+ */
+ len = 8 + ((rand_r(&seed) % (SRC_BUFFER_SIZE - 16)) & ~0x7);
+ dst_offset = 8 + rand_r(&seed) % (SRC_BUFFER_SIZE - 8 - len);
+ ioat_task->fill_pattern = fill_pattern;
+ ioat_task->dst = (void *)(((uintptr_t)ioat_task->buffer + dst_offset) & ~0x7);
+ } else {
+ src_offset = rand_r(&seed) % SRC_BUFFER_SIZE;
+ len = rand_r(&seed) % (SRC_BUFFER_SIZE - src_offset);
+ dst_offset = rand_r(&seed) % (SRC_BUFFER_SIZE - len);
+
+ memset(ioat_task->buffer, 0, SRC_BUFFER_SIZE);
+ ioat_task->src = (void *)((uintptr_t)g_src + src_offset);
+ ioat_task->dst = (void *)((uintptr_t)ioat_task->buffer + dst_offset);
+ }
+ ioat_task->len = len;
+ ioat_task->thread_entry = thread_entry;
+}
+
+static void
+ioat_done(void *cb_arg)
+{
+ char *value;
+ int i, failed = 0;
+ struct ioat_task *ioat_task = (struct ioat_task *)cb_arg;
+ struct thread_entry *thread_entry = ioat_task->thread_entry;
+
+ if (ioat_task->type == IOAT_FILL_TYPE) {
+ value = ioat_task->dst;
+ for (i = 0; i < ioat_task->len / 8; i++) {
+ if (memcmp(value, &ioat_task->fill_pattern, 8) != 0) {
+ thread_entry->fill_failed++;
+ failed = 1;
+ break;
+ }
+ value += 8;
+ }
+ if (!failed) {
+ thread_entry->fill_completed++;
+ }
+ } else {
+ if (memcmp(ioat_task->src, ioat_task->dst, ioat_task->len)) {
+ thread_entry->xfer_failed++;
+ } else {
+ thread_entry->xfer_completed++;
+ }
+ }
+
+ thread_entry->current_queue_depth--;
+ if (thread_entry->is_draining) {
+ spdk_mempool_put(thread_entry->data_pool, ioat_task->buffer);
+ spdk_mempool_put(thread_entry->task_pool, ioat_task);
+ } else {
+ prepare_ioat_task(thread_entry, ioat_task);
+ submit_single_xfer(ioat_task);
+ }
+}
+
+static bool
+probe_cb(void *cb_ctx, struct spdk_pci_device *pci_dev)
+{
+ printf(" Found matching device at %04x:%02x:%02x.%x "
+ "vendor:0x%04x device:0x%04x\n",
+ spdk_pci_device_get_domain(pci_dev),
+ spdk_pci_device_get_bus(pci_dev), spdk_pci_device_get_dev(pci_dev),
+ spdk_pci_device_get_func(pci_dev),
+ spdk_pci_device_get_vendor_id(pci_dev), spdk_pci_device_get_device_id(pci_dev));
+
+ return true;
+}
+
+static void
+attach_cb(void *cb_ctx, struct spdk_pci_device *pci_dev, struct spdk_ioat_chan *ioat)
+{
+ struct ioat_device *dev;
+
+ dev = malloc(sizeof(*dev));
+ if (dev == NULL) {
+ printf("Failed to allocate device struct\n");
+ return;
+ }
+ memset(dev, 0, sizeof(*dev));
+
+ dev->ioat = ioat;
+ TAILQ_INSERT_TAIL(&g_devices, dev, tailq);
+}
+
+static int
+ioat_init(void)
+{
+ TAILQ_INIT(&g_devices);
+
+ if (spdk_ioat_probe(NULL, probe_cb, attach_cb) != 0) {
+ fprintf(stderr, "ioat_probe() failed\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static void
+usage(char *program_name)
+{
+ printf("%s options\n", program_name);
+ printf("\t[-h help message]\n");
+ printf("\t[-c core mask for distributing I/O submission/completion work]\n");
+ printf("\t[-t time in seconds]\n");
+ printf("\t[-q queue depth]\n");
+}
+
+static int
+parse_args(int argc, char **argv)
+{
+ int op;
+
+ construct_user_config(&g_user_config);
+ while ((op = getopt(argc, argv, "c:ht:q:")) != -1) {
+ switch (op) {
+ case 't':
+ g_user_config.time_in_sec = atoi(optarg);
+ break;
+ case 'c':
+ g_user_config.core_mask = optarg;
+ break;
+ case 'q':
+ g_user_config.queue_depth = atoi(optarg);
+ break;
+ case 'h':
+ usage(argv[0]);
+ exit(0);
+ default:
+ usage(argv[0]);
+ return 1;
+ }
+ }
+ if (!g_user_config.time_in_sec || !g_user_config.core_mask || !g_user_config.queue_depth) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ return 0;
+}
+
+static void
+drain_xfers(struct thread_entry *thread_entry)
+{
+ while (thread_entry->current_queue_depth > 0) {
+ spdk_ioat_process_events(thread_entry->chan);
+ }
+}
+
+static void
+submit_single_xfer(struct ioat_task *ioat_task)
+{
+ if (ioat_task->type == IOAT_FILL_TYPE)
+ spdk_ioat_submit_fill(ioat_task->thread_entry->chan, ioat_task, ioat_done,
+ ioat_task->dst, ioat_task->fill_pattern, ioat_task->len);
+ else
+ spdk_ioat_submit_copy(ioat_task->thread_entry->chan, ioat_task, ioat_done,
+ ioat_task->dst, ioat_task->src, ioat_task->len);
+ ioat_task->thread_entry->current_queue_depth++;
+}
+
+static void
+submit_xfers(struct thread_entry *thread_entry, uint64_t queue_depth)
+{
+ while (queue_depth-- > 0) {
+ struct ioat_task *ioat_task = NULL;
+ ioat_task = spdk_mempool_get(thread_entry->task_pool);
+ ioat_task->buffer = spdk_mempool_get(thread_entry->data_pool);
+
+ ioat_task->type = IOAT_COPY_TYPE;
+ if (spdk_ioat_get_dma_capabilities(thread_entry->chan) & SPDK_IOAT_ENGINE_FILL_SUPPORTED) {
+ if (queue_depth % 2) {
+ ioat_task->type = IOAT_FILL_TYPE;
+ }
+ }
+ prepare_ioat_task(thread_entry, ioat_task);
+ submit_single_xfer(ioat_task);
+ }
+}
+
+static int
+work_fn(void *arg)
+{
+ uint64_t tsc_end;
+ char buf_pool_name[20], task_pool_name[20];
+ struct thread_entry *t = (struct thread_entry *)arg;
+
+ if (!t->chan) {
+ return 0;
+ }
+
+ t->lcore_id = spdk_env_get_current_core();
+
+ snprintf(buf_pool_name, sizeof(buf_pool_name), "buf_pool_%u", t->lcore_id);
+ snprintf(task_pool_name, sizeof(task_pool_name), "task_pool_%u", t->lcore_id);
+ t->data_pool = spdk_mempool_create(buf_pool_name, g_user_config.queue_depth, SRC_BUFFER_SIZE,
+ SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
+ SPDK_ENV_SOCKET_ID_ANY);
+ t->task_pool = spdk_mempool_create(task_pool_name, g_user_config.queue_depth,
+ sizeof(struct ioat_task),
+ SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
+ SPDK_ENV_SOCKET_ID_ANY);
+ if (!t->data_pool || !t->task_pool) {
+ fprintf(stderr, "Could not allocate buffer pool.\n");
+ t->init_failed = true;
+ return 1;
+ }
+
+ tsc_end = spdk_get_ticks() + g_user_config.time_in_sec * spdk_get_ticks_hz();
+
+ submit_xfers(t, g_user_config.queue_depth);
+ while (spdk_get_ticks() < tsc_end) {
+ spdk_ioat_process_events(t->chan);
+ }
+
+ t->is_draining = true;
+ drain_xfers(t);
+
+ return 0;
+}
+
+static int
+init_src_buffer(void)
+{
+ int i;
+
+ g_src = spdk_dma_zmalloc(SRC_BUFFER_SIZE, 512, NULL);
+ if (g_src == NULL) {
+ fprintf(stderr, "Allocate src buffer failed\n");
+ return -1;
+ }
+
+ for (i = 0; i < SRC_BUFFER_SIZE / 4; i++) {
+ memset((g_src + (4 * i)), i, 4);
+ }
+
+ return 0;
+}
+
+static int
+init(void)
+{
+ struct spdk_env_opts opts;
+
+ spdk_env_opts_init(&opts);
+ opts.name = "verify";
+ opts.core_mask = g_user_config.core_mask;
+ if (spdk_env_init(&opts) < 0) {
+ fprintf(stderr, "Unable to initialize SPDK env\n");
+ return 1;
+ }
+
+ if (init_src_buffer() != 0) {
+ fprintf(stderr, "Could not init src buffer\n");
+ return 1;
+ }
+ if (ioat_init() != 0) {
+ fprintf(stderr, "Could not init ioat\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static int
+dump_result(struct thread_entry *threads, uint32_t num_threads)
+{
+ uint32_t i;
+ uint64_t total_completed = 0;
+ uint64_t total_failed = 0;
+
+ for (i = 0; i < num_threads; i++) {
+ struct thread_entry *t = &threads[i];
+
+ if (!t->chan) {
+ continue;
+ }
+
+ if (t->init_failed) {
+ total_failed++;
+ continue;
+ }
+
+ total_completed += t->xfer_completed;
+ total_completed += t->fill_completed;
+ total_failed += t->xfer_failed;
+ total_failed += t->fill_failed;
+ if (total_completed || total_failed)
+ printf("lcore = %d, copy success = %ld, copy failed = %ld, fill success = %ld, fill failed = %ld\n",
+ t->lcore_id, t->xfer_completed, t->xfer_failed, t->fill_completed, t->fill_failed);
+ }
+ return total_failed ? 1 : 0;
+}
+
+static struct spdk_ioat_chan *
+get_next_chan(void)
+{
+ struct spdk_ioat_chan *chan;
+
+ if (g_next_device == NULL) {
+ fprintf(stderr, "Not enough ioat channels found. Check that ioat channels are bound\n");
+ fprintf(stderr, "to uio_pci_generic or vfio-pci. scripts/setup.sh can help with this.\n");
+ return NULL;
+ }
+
+ chan = g_next_device->ioat;
+
+ g_next_device = TAILQ_NEXT(g_next_device, tailq);
+
+ return chan;
+}
+
+static uint32_t
+get_max_core(void)
+{
+ uint32_t i;
+ uint32_t max_core = 0;
+
+ SPDK_ENV_FOREACH_CORE(i) {
+ if (i > max_core) {
+ max_core = i;
+ }
+ }
+
+ return max_core;
+}
+
+int
+main(int argc, char **argv)
+{
+ uint32_t i, current_core;
+ struct thread_entry *threads;
+ uint32_t num_threads;
+ int rc;
+
+ if (parse_args(argc, argv) != 0) {
+ return 1;
+ }
+
+ if (init() != 0) {
+ return 1;
+ }
+
+ dump_user_config(&g_user_config);
+
+ g_next_device = TAILQ_FIRST(&g_devices);
+
+ num_threads = get_max_core() + 1;
+ threads = calloc(num_threads, sizeof(*threads));
+ if (!threads) {
+ fprintf(stderr, "Thread memory allocation failed\n");
+ rc = 1;
+ goto cleanup;
+ }
+
+ current_core = spdk_env_get_current_core();
+ SPDK_ENV_FOREACH_CORE(i) {
+ if (i != current_core) {
+ threads[i].chan = get_next_chan();
+ spdk_env_thread_launch_pinned(i, work_fn, &threads[i]);
+ }
+ }
+
+ threads[current_core].chan = get_next_chan();
+ work_fn(&threads[current_core]);
+
+ spdk_env_thread_wait_all();
+ rc = dump_result(threads, num_threads);
+
+cleanup:
+ spdk_dma_free(g_src);
+ ioat_exit();
+ free(threads);
+
+ return rc;
+}
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