44 lines
964 B
C
44 lines
964 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Dmabuf device memory provider.
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*
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* Authors: Mina Almasry <almasrymina@google.com>
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*
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*/
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#ifndef _NET_MP_DMABUF_DEVMEM_H
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#define _NET_MP_DMABUF_DEVMEM_H
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#include <net/netmem.h>
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#if defined(CONFIG_NET_DEVMEM)
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int mp_dmabuf_devmem_init(struct page_pool *pool);
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netmem_ref mp_dmabuf_devmem_alloc_netmems(struct page_pool *pool, gfp_t gfp);
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void mp_dmabuf_devmem_destroy(struct page_pool *pool);
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bool mp_dmabuf_devmem_release_page(struct page_pool *pool, netmem_ref netmem);
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#else
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static inline int mp_dmabuf_devmem_init(struct page_pool *pool)
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{
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return -EOPNOTSUPP;
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}
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static inline netmem_ref
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mp_dmabuf_devmem_alloc_netmems(struct page_pool *pool, gfp_t gfp)
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{
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return 0;
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}
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static inline void mp_dmabuf_devmem_destroy(struct page_pool *pool)
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{
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}
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static inline bool
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mp_dmabuf_devmem_release_page(struct page_pool *pool, netmem_ref netmem)
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{
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return false;
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}
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#endif
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#endif /* _NET_MP_DMABUF_DEVMEM_H */
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