return ms->iova + RTE_PTR_DIFF(addr, ms->addr);
}
+static struct malloc_heap *
+find_named_heap(const char *name)
+{
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ unsigned int i;
+
+ for (i = 0; i < RTE_MAX_HEAPS; i++) {
+ struct malloc_heap *heap = &mcfg->malloc_heaps[i];
+
+ if (!strncmp(name, heap->name, RTE_HEAP_NAME_MAX_LEN))
+ return heap;
+ }
+ return NULL;
+}
+
+int
+rte_malloc_heap_memory_add(const char *heap_name, void *va_addr, size_t len,
+ rte_iova_t iova_addrs[], unsigned int n_pages, size_t page_sz)
+{
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ struct malloc_heap *heap = NULL;
+ unsigned int n;
+ int ret;
+
+ if (heap_name == NULL || va_addr == NULL ||
+ page_sz == 0 || !rte_is_power_of_2(page_sz) ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) == 0 ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) ==
+ RTE_HEAP_NAME_MAX_LEN) {
+ rte_errno = EINVAL;
+ ret = -1;
+ goto unlock;
+ }
+ rte_rwlock_write_lock(&mcfg->memory_hotplug_lock);
+
+ /* find our heap */
+ heap = find_named_heap(heap_name);
+ if (heap == NULL) {
+ rte_errno = ENOENT;
+ ret = -1;
+ goto unlock;
+ }
+ if (heap->socket_id < RTE_MAX_NUMA_NODES) {
+ /* cannot add memory to internal heaps */
+ rte_errno = EPERM;
+ ret = -1;
+ goto unlock;
+ }
+ n = len / page_sz;
+ if (n != n_pages && iova_addrs != NULL) {
+ rte_errno = EINVAL;
+ ret = -1;
+ goto unlock;
+ }
+
+ rte_spinlock_lock(&heap->lock);
+ ret = malloc_heap_add_external_memory(heap, va_addr, iova_addrs, n,
+ page_sz);
+ rte_spinlock_unlock(&heap->lock);
+
+unlock:
+ rte_rwlock_write_unlock(&mcfg->memory_hotplug_lock);
+
+ return ret;
+}
+
+int
+rte_malloc_heap_memory_remove(const char *heap_name, void *va_addr, size_t len)
+{
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ struct malloc_heap *heap = NULL;
+ int ret;
+
+ if (heap_name == NULL || va_addr == NULL || len == 0 ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) == 0 ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) ==
+ RTE_HEAP_NAME_MAX_LEN) {
+ rte_errno = EINVAL;
+ return -1;
+ }
+ rte_rwlock_write_lock(&mcfg->memory_hotplug_lock);
+ /* find our heap */
+ heap = find_named_heap(heap_name);
+ if (heap == NULL) {
+ rte_errno = ENOENT;
+ ret = -1;
+ goto unlock;
+ }
+ if (heap->socket_id < RTE_MAX_NUMA_NODES) {
+ /* cannot remove memory from internal heaps */
+ rte_errno = EPERM;
+ ret = -1;
+ goto unlock;
+ }
+
+ rte_spinlock_lock(&heap->lock);
+ ret = malloc_heap_remove_external_memory(heap, va_addr, len);
+ rte_spinlock_unlock(&heap->lock);
+
+unlock:
+ rte_rwlock_write_unlock(&mcfg->memory_hotplug_lock);
+
+ return ret;
+}
+
+struct sync_mem_walk_arg {
+ void *va_addr;
+ size_t len;
+ int result;
+ bool attach;
+};
+
+static int
+sync_mem_walk(const struct rte_memseg_list *msl, void *arg)
+{
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ struct sync_mem_walk_arg *wa = arg;
+ size_t len = msl->page_sz * msl->memseg_arr.len;
+
+ if (msl->base_va == wa->va_addr &&
+ len == wa->len) {
+ struct rte_memseg_list *found_msl;
+ int msl_idx, ret;
+
+ /* msl is const */
+ msl_idx = msl - mcfg->memsegs;
+ found_msl = &mcfg->memsegs[msl_idx];
+
+ if (wa->attach)
+ ret = rte_fbarray_attach(&found_msl->memseg_arr);
+ else
+ ret = rte_fbarray_detach(&found_msl->memseg_arr);
+
+ if (ret < 0)
+ wa->result = -rte_errno;
+ else
+ wa->result = 0;
+ return 1;
+ }
+ return 0;
+}
+
+static int
+sync_memory(const char *heap_name, void *va_addr, size_t len, bool attach)
+{
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ struct malloc_heap *heap = NULL;
+ struct sync_mem_walk_arg wa;
+ int ret;
+
+ if (heap_name == NULL || va_addr == NULL || len == 0 ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) == 0 ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) ==
+ RTE_HEAP_NAME_MAX_LEN) {
+ rte_errno = EINVAL;
+ return -1;
+ }
+ rte_rwlock_read_lock(&mcfg->memory_hotplug_lock);
+
+ /* find our heap */
+ heap = find_named_heap(heap_name);
+ if (heap == NULL) {
+ rte_errno = ENOENT;
+ ret = -1;
+ goto unlock;
+ }
+ /* we shouldn't be able to sync to internal heaps */
+ if (heap->socket_id < RTE_MAX_NUMA_NODES) {
+ rte_errno = EPERM;
+ ret = -1;
+ goto unlock;
+ }
+
+ /* find corresponding memseg list to sync to */
+ wa.va_addr = va_addr;
+ wa.len = len;
+ wa.result = -ENOENT; /* fail unless explicitly told to succeed */
+ wa.attach = attach;
+
+ /* we're already holding a read lock */
+ rte_memseg_list_walk_thread_unsafe(sync_mem_walk, &wa);
+
+ if (wa.result < 0) {
+ rte_errno = -wa.result;
+ ret = -1;
+ } else {
+ ret = 0;
+ }
+unlock:
+ rte_rwlock_read_unlock(&mcfg->memory_hotplug_lock);
+ return ret;
+}
+
+int
+rte_malloc_heap_memory_attach(const char *heap_name, void *va_addr, size_t len)
+{
+ return sync_memory(heap_name, va_addr, len, true);
+}
+
+int
+rte_malloc_heap_memory_detach(const char *heap_name, void *va_addr, size_t len)
+{
+ return sync_memory(heap_name, va_addr, len, false);
+}
+
int
rte_malloc_heap_create(const char *heap_name)
{
return ret;
}
+
+int
+rte_malloc_heap_destroy(const char *heap_name)
+{
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ struct malloc_heap *heap = NULL;
+ int ret;
+
+ if (heap_name == NULL ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) == 0 ||
+ strnlen(heap_name, RTE_HEAP_NAME_MAX_LEN) ==
+ RTE_HEAP_NAME_MAX_LEN) {
+ rte_errno = EINVAL;
+ return -1;
+ }
+ rte_rwlock_write_lock(&mcfg->memory_hotplug_lock);
+
+ /* start from non-socket heaps */
+ heap = find_named_heap(heap_name);
+ if (heap == NULL) {
+ RTE_LOG(ERR, EAL, "Heap %s not found\n", heap_name);
+ rte_errno = ENOENT;
+ ret = -1;
+ goto unlock;
+ }
+ /* we shouldn't be able to destroy internal heaps */
+ if (heap->socket_id < RTE_MAX_NUMA_NODES) {
+ rte_errno = EPERM;
+ ret = -1;
+ goto unlock;
+ }
+ /* sanity checks done, now we can destroy the heap */
+ rte_spinlock_lock(&heap->lock);
+ ret = malloc_heap_destroy(heap);
+
+ /* if we failed, lock is still active */
+ if (ret < 0)
+ rte_spinlock_unlock(&heap->lock);
+unlock:
+ rte_rwlock_write_unlock(&mcfg->memory_hotplug_lock);
+
+ return ret;
+}
git.droids-corp.org / dpdk.git / blobdiff