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-rw-r--r--src/spdk/lib/env_dpdk/threads.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/spdk/lib/env_dpdk/threads.c b/src/spdk/lib/env_dpdk/threads.c
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+++ b/src/spdk/lib/env_dpdk/threads.c
@@ -0,0 +1,108 @@
+/*-
+ * 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/env.h"
+
+#include <rte_config.h>
+#include <rte_lcore.h>
+
+uint32_t
+spdk_env_get_core_count(void)
+{
+ return rte_lcore_count();
+}
+
+uint32_t
+spdk_env_get_current_core(void)
+{
+ return rte_lcore_id();
+}
+
+uint32_t
+spdk_env_get_first_core(void)
+{
+ return rte_get_next_lcore(-1, 0, 0);
+}
+
+uint32_t
+spdk_env_get_last_core(void)
+{
+ uint32_t i;
+ uint32_t last_core = UINT32_MAX;
+
+ SPDK_ENV_FOREACH_CORE(i) {
+ last_core = i;
+ }
+
+ assert(last_core != UINT32_MAX);
+
+ return last_core;
+}
+
+uint32_t
+spdk_env_get_next_core(uint32_t prev_core)
+{
+ unsigned lcore;
+
+ lcore = rte_get_next_lcore(prev_core, 0, 0);
+ if (lcore == RTE_MAX_LCORE) {
+ return UINT32_MAX;
+ }
+ return lcore;
+}
+
+uint32_t
+spdk_env_get_socket_id(uint32_t core)
+{
+ if (core >= RTE_MAX_LCORE) {
+ return SPDK_ENV_SOCKET_ID_ANY;
+ }
+
+ return rte_lcore_to_socket_id(core);
+}
+
+int
+spdk_env_thread_launch_pinned(uint32_t core, thread_start_fn fn, void *arg)
+{
+ int rc;
+
+ rc = rte_eal_remote_launch(fn, arg, core);
+
+ return rc;
+}
+
+void
+spdk_env_thread_wait_all(void)
+{
+ rte_eal_mp_wait_lcore();
+}