1 files changed, 60 insertions, 0 deletions
diff --git a/net/core/page_pool_priv.h b/net/core/page_pool_priv.h
new file mode 100644
index 000000000000..2fb06d5f6d55
--- /dev/null
+++ b/net/core/page_pool_priv.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __PAGE_POOL_PRIV_H
+#define __PAGE_POOL_PRIV_H
+
+#include <net/page_pool/helpers.h>
+
+#include "netmem_priv.h"
+
+extern struct mutex page_pools_lock;
+
+s32 page_pool_inflight(const struct page_pool *pool, bool strict);
+
+int page_pool_list(struct page_pool *pool);
+void page_pool_detached(struct page_pool *pool);
+void page_pool_unlist(struct page_pool *pool);
+
+static inline bool
+page_pool_set_dma_addr_netmem(netmem_ref netmem, dma_addr_t addr)
+{
+	if (PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA) {
+		netmem_set_dma_addr(netmem, addr >> PAGE_SHIFT);
+
+		/* We assume page alignment to shave off bottom bits,
+		 * if this "compression" doesn't work we need to drop.
+		 */
+		return addr != (dma_addr_t)netmem_get_dma_addr(netmem)
+				       << PAGE_SHIFT;
+	}
+
+	netmem_set_dma_addr(netmem, addr);
+	return false;
+}
+
+static inline bool page_pool_set_dma_addr(struct page *page, dma_addr_t addr)
+{
+	return page_pool_set_dma_addr_netmem(page_to_netmem(page), addr);
+}
+
+#if defined(CONFIG_PAGE_POOL)
+void page_pool_set_pp_info(struct page_pool *pool, netmem_ref netmem);
+void page_pool_clear_pp_info(netmem_ref netmem);
+int page_pool_check_memory_provider(struct net_device *dev,
+				    struct netdev_rx_queue *rxq);
+#else
+static inline void page_pool_set_pp_info(struct page_pool *pool,
+					 netmem_ref netmem)
+{
+}
+static inline void page_pool_clear_pp_info(netmem_ref netmem)
+{
+}
+static inline int page_pool_check_memory_provider(struct net_device *dev,
+						  struct netdev_rx_queue *rxq)
+{
+	return 0;
+}
+#endif
+
+#endif