1 files changed, 117 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/net/page_pool.h b/sys/compat/linuxkpi/common/include/net/page_pool.h
new file mode 100644
index 000000000000..82dbeff82167
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/net/page_pool.h
@@ -0,0 +1,117 @@
+/*-
+ * Copyright (c) 2023 Bjoern A. Zeeb
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#ifndef	_LINUXKPI_NET_PAGE_POOL_H
+#define	_LINUXKPI_NET_PAGE_POOL_H
+
+#include <linux/kernel.h>	/* pr_debug */
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+
+struct device;
+
+struct page_pool_params {
+	struct device			*dev;
+	uint32_t			flags;
+	uint32_t			order;
+	uint32_t			pool_size;
+	uint32_t			max_len;
+	uint32_t			offset;
+	int				nid;		/* NUMA */
+	enum dma_data_direction		dma_dir;
+};
+
+struct page_pool {
+};
+
+#define	PP_FLAG_DMA_MAP		BIT(0)
+#define	PP_FLAG_DMA_SYNC_DEV	BIT(1)
+#define	PP_FLAG_PAGE_FRAG	BIT(2)
+
+static inline struct page_pool *
+page_pool_create(const struct page_pool_params *ppparams)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (NULL);
+}
+
+static inline void
+page_pool_destroy(struct page_pool *ppool)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+}
+
+static inline struct page *
+page_pool_dev_alloc_frag(struct page_pool *ppool, uint32_t *offset,
+    size_t size)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (NULL);
+}
+
+static inline dma_addr_t
+page_pool_get_dma_addr(struct page *page)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (0);
+}
+
+static inline enum dma_data_direction
+page_pool_get_dma_dir(const struct page_pool *ppool)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (DMA_BIDIRECTIONAL);
+}
+
+static inline void
+page_pool_put_full_page(struct page_pool *ppool, struct page *page,
+    bool allow_direct)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+}
+
+static inline int
+page_pool_ethtool_stats_get_count(void)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (0);
+}
+
+static inline uint8_t *
+page_pool_ethtool_stats_get_strings(uint8_t *x)
+{
+
+	pr_debug("%s: TODO\n", __func__);
+	return (x);
+}
+
+#endif	/* _LINUXKPI_NET_PAGE_POOL_H */