1 files changed, 419 insertions, 0 deletions
diff --git a/src/spdk/lib/env_dpdk/env.c b/src/spdk/lib/env_dpdk/env.c
new file mode 100644
index 00000000..a5238e54
--- /dev/null
+++ b/src/spdk/lib/env_dpdk/env.c
@@ -0,0 +1,419 @@
+/*-
+ *   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/env.h"
+
+#include <rte_config.h>
+#include <rte_cycles.h>
+#include <rte_malloc.h>
+#include <rte_mempool.h>
+#include <rte_memzone.h>
+#include <rte_version.h>
+
+static uint64_t
+virt_to_phys(void *vaddr)
+{
+	uint64_t ret;
+
+#if RTE_VERSION >= RTE_VERSION_NUM(17, 11, 0, 3)
+	ret = rte_malloc_virt2iova(vaddr);
+	if (ret != RTE_BAD_IOVA) {
+		return ret;
+	}
+#else
+	ret = rte_malloc_virt2phy(vaddr);
+	if (ret != RTE_BAD_PHYS_ADDR) {
+		return ret;
+	}
+#endif
+
+	return spdk_vtophys(vaddr);
+}
+
+void *
+spdk_malloc(size_t size, size_t align, uint64_t *phys_addr, int socket_id, uint32_t flags)
+{
+	if (flags == 0) {
+		return NULL;
+	}
+
+	void *buf = rte_malloc_socket(NULL, size, align, socket_id);
+	if (buf && phys_addr) {
+		*phys_addr = virt_to_phys(buf);
+	}
+	return buf;
+}
+
+void *
+spdk_zmalloc(size_t size, size_t align, uint64_t *phys_addr, int socket_id, uint32_t flags)
+{
+	void *buf = spdk_malloc(size, align, phys_addr, socket_id, flags);
+	if (buf) {
+		memset(buf, 0, size);
+	}
+	return buf;
+}
+
+void
+spdk_free(void *buf)
+{
+	rte_free(buf);
+}
+
+void *
+spdk_dma_malloc_socket(size_t size, size_t align, uint64_t *phys_addr, int socket_id)
+{
+	return spdk_malloc(size, align, phys_addr, socket_id, (SPDK_MALLOC_DMA | SPDK_MALLOC_SHARE));
+}
+
+void *
+spdk_dma_zmalloc_socket(size_t size, size_t align, uint64_t *phys_addr, int socket_id)
+{
+	return spdk_zmalloc(size, align, phys_addr, socket_id, (SPDK_MALLOC_DMA | SPDK_MALLOC_SHARE));
+}
+
+void *
+spdk_dma_malloc(size_t size, size_t align, uint64_t *phys_addr)
+{
+	return spdk_dma_malloc_socket(size, align, phys_addr, SPDK_ENV_SOCKET_ID_ANY);
+}
+
+void *
+spdk_dma_zmalloc(size_t size, size_t align, uint64_t *phys_addr)
+{
+	return spdk_dma_zmalloc_socket(size, align, phys_addr, SPDK_ENV_SOCKET_ID_ANY);
+}
+
+void *
+spdk_dma_realloc(void *buf, size_t size, size_t align, uint64_t *phys_addr)
+{
+	void *new_buf = rte_realloc(buf, size, align);
+	if (new_buf && phys_addr) {
+		*phys_addr = virt_to_phys(new_buf);
+	}
+	return new_buf;
+}
+
+void
+spdk_dma_free(void *buf)
+{
+	spdk_free(buf);
+}
+
+void *
+spdk_memzone_reserve_aligned(const char *name, size_t len, int socket_id,
+			     unsigned flags, unsigned align)
+{
+	const struct rte_memzone *mz;
+	unsigned dpdk_flags = 0;
+
+#if RTE_VERSION >= RTE_VERSION_NUM(18, 05, 0, 0)
+	/* Older DPDKs do not offer such flag since their
+	 * memzones are iova-contiguous by default.
+	 */
+	if ((flags & SPDK_MEMZONE_NO_IOVA_CONTIG) == 0) {
+		dpdk_flags |= RTE_MEMZONE_IOVA_CONTIG;
+	}
+#endif
+
+	if (socket_id == SPDK_ENV_SOCKET_ID_ANY) {
+		socket_id = SOCKET_ID_ANY;
+	}
+
+	mz = rte_memzone_reserve_aligned(name, len, socket_id, dpdk_flags, align);
+
+	if (mz != NULL) {
+		memset(mz->addr, 0, len);
+		return mz->addr;
+	} else {
+		return NULL;
+	}
+}
+
+void *
+spdk_memzone_reserve(const char *name, size_t len, int socket_id, unsigned flags)
+{
+	return spdk_memzone_reserve_aligned(name, len, socket_id, flags,
+					    RTE_CACHE_LINE_SIZE);
+}
+
+void *
+spdk_memzone_lookup(const char *name)
+{
+	const struct rte_memzone *mz = rte_memzone_lookup(name);
+
+	if (mz != NULL) {
+		return mz->addr;
+	} else {
+		return NULL;
+	}
+}
+
+int
+spdk_memzone_free(const char *name)
+{
+	const struct rte_memzone *mz = rte_memzone_lookup(name);
+
+	if (mz != NULL) {
+		return rte_memzone_free(mz);
+	}
+
+	return -1;
+}
+
+void
+spdk_memzone_dump(FILE *f)
+{
+	rte_memzone_dump(f);
+}
+
+struct spdk_mempool *
+spdk_mempool_create_ctor(const char *name, size_t count,
+			 size_t ele_size, size_t cache_size, int socket_id,
+			 spdk_mempool_obj_cb_t *obj_init, void *obj_init_arg)
+{
+	struct rte_mempool *mp;
+	size_t tmp;
+
+	if (socket_id == SPDK_ENV_SOCKET_ID_ANY) {
+		socket_id = SOCKET_ID_ANY;
+	}
+
+	/* No more than half of all elements can be in cache */
+	tmp = (count / 2) / rte_lcore_count();
+	if (cache_size > tmp) {
+		cache_size = tmp;
+	}
+
+	if (cache_size > RTE_MEMPOOL_CACHE_MAX_SIZE) {
+		cache_size = RTE_MEMPOOL_CACHE_MAX_SIZE;
+	}
+
+	mp = rte_mempool_create(name, count, ele_size, cache_size,
+				0, NULL, NULL, (rte_mempool_obj_cb_t *)obj_init, obj_init_arg,
+				socket_id, MEMPOOL_F_NO_PHYS_CONTIG);
+
+	return (struct spdk_mempool *)mp;
+}
+
+
+struct spdk_mempool *
+spdk_mempool_create(const char *name, size_t count,
+		    size_t ele_size, size_t cache_size, int socket_id)
+{
+	return spdk_mempool_create_ctor(name, count, ele_size, cache_size, socket_id,
+					NULL, NULL);
+}
+
+char *
+spdk_mempool_get_name(struct spdk_mempool *mp)
+{
+	return ((struct rte_mempool *)mp)->name;
+}
+
+void
+spdk_mempool_free(struct spdk_mempool *mp)
+{
+#if RTE_VERSION >= RTE_VERSION_NUM(16, 7, 0, 1)
+	rte_mempool_free((struct rte_mempool *)mp);
+#endif
+}
+
+void *
+spdk_mempool_get(struct spdk_mempool *mp)
+{
+	void *ele = NULL;
+	int rc;
+
+	rc = rte_mempool_get((struct rte_mempool *)mp, &ele);
+	if (rc != 0) {
+		return NULL;
+	}
+	return ele;
+}
+
+int
+spdk_mempool_get_bulk(struct spdk_mempool *mp, void **ele_arr, size_t count)
+{
+	return rte_mempool_get_bulk((struct rte_mempool *)mp, ele_arr, count);
+}
+
+void
+spdk_mempool_put(struct spdk_mempool *mp, void *ele)
+{
+	rte_mempool_put((struct rte_mempool *)mp, ele);
+}
+
+void
+spdk_mempool_put_bulk(struct spdk_mempool *mp, void **ele_arr, size_t count)
+{
+	rte_mempool_put_bulk((struct rte_mempool *)mp, ele_arr, count);
+}
+
+size_t
+spdk_mempool_count(const struct spdk_mempool *pool)
+{
+#if RTE_VERSION < RTE_VERSION_NUM(16, 7, 0, 1)
+	return rte_mempool_count((struct rte_mempool *)pool);
+#else
+	return rte_mempool_avail_count((struct rte_mempool *)pool);
+#endif
+}
+
+bool
+spdk_process_is_primary(void)
+{
+	return (rte_eal_process_type() == RTE_PROC_PRIMARY);
+}
+
+uint64_t spdk_get_ticks(void)
+{
+	return rte_get_timer_cycles();
+}
+
+uint64_t spdk_get_ticks_hz(void)
+{
+	return rte_get_timer_hz();
+}
+
+void spdk_delay_us(unsigned int us)
+{
+	rte_delay_us(us);
+}
+
+void
+spdk_unaffinitize_thread(void)
+{
+	rte_cpuset_t new_cpuset;
+	long num_cores, i;
+
+	CPU_ZERO(&new_cpuset);
+
+	num_cores = sysconf(_SC_NPROCESSORS_CONF);
+
+	/* Create a mask containing all CPUs */
+	for (i = 0; i < num_cores; i++) {
+		CPU_SET(i, &new_cpuset);
+	}
+
+	rte_thread_set_affinity(&new_cpuset);
+}
+
+void *
+spdk_call_unaffinitized(void *cb(void *arg), void *arg)
+{
+	rte_cpuset_t orig_cpuset;
+	void *ret;
+
+	if (cb == NULL) {
+		return NULL;
+	}
+
+	rte_thread_get_affinity(&orig_cpuset);
+
+	spdk_unaffinitize_thread();
+
+	ret = cb(arg);
+
+	rte_thread_set_affinity(&orig_cpuset);
+
+	return ret;
+}
+
+struct spdk_ring *
+spdk_ring_create(enum spdk_ring_type type, size_t count, int socket_id)
+{
+	char ring_name[64];
+	static uint32_t ring_num = 0;
+	unsigned flags = 0;
+
+	switch (type) {
+	case SPDK_RING_TYPE_SP_SC:
+		flags = RING_F_SP_ENQ | RING_F_SC_DEQ;
+		break;
+	case SPDK_RING_TYPE_MP_SC:
+		flags = RING_F_SC_DEQ;
+		break;
+	case SPDK_RING_TYPE_MP_MC:
+		flags = 0;
+		break;
+	default:
+		return NULL;
+	}
+
+	snprintf(ring_name, sizeof(ring_name), "ring_%u_%d",
+		 __sync_fetch_and_add(&ring_num, 1), getpid());
+
+	return (struct spdk_ring *)rte_ring_create(ring_name, count, socket_id, flags);
+}
+
+void
+spdk_ring_free(struct spdk_ring *ring)
+{
+	rte_ring_free((struct rte_ring *)ring);
+}
+
+size_t
+spdk_ring_count(struct spdk_ring *ring)
+{
+	return rte_ring_count((struct rte_ring *)ring);
+}
+
+size_t
+spdk_ring_enqueue(struct spdk_ring *ring, void **objs, size_t count)
+{
+	int rc;
+#if RTE_VERSION < RTE_VERSION_NUM(17, 5, 0, 0)
+	rc = rte_ring_enqueue_bulk((struct rte_ring *)ring, objs, count);
+	if (rc == 0) {
+		return count;
+	}
+
+	return 0;
+#else
+	rc = rte_ring_enqueue_bulk((struct rte_ring *)ring, objs, count, NULL);
+	return rc;
+#endif
+}
+
+size_t
+spdk_ring_dequeue(struct spdk_ring *ring, void **objs, size_t count)
+{
+#if RTE_VERSION < RTE_VERSION_NUM(17, 5, 0, 0)
+	return rte_ring_dequeue_burst((struct rte_ring *)ring, objs, count);
+#else
+	return rte_ring_dequeue_burst((struct rte_ring *)ring, objs, count, NULL);
+#endif
+}