Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NETMEM_PRIV_H
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#define __NETMEM_PRIV_H
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static inline unsigned long netmem_get_pp_magic(netmem_ref netmem)
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{
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return netmem_to_nmdesc(netmem)->pp_magic & ~PP_DMA_INDEX_MASK;
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}
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static inline void netmem_or_pp_magic(netmem_ref netmem, unsigned long pp_magic)
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{
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netmem_to_nmdesc(netmem)->pp_magic |= pp_magic;
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}
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static inline void netmem_clear_pp_magic(netmem_ref netmem)
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{
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WARN_ON_ONCE(netmem_to_nmdesc(netmem)->pp_magic & PP_DMA_INDEX_MASK);
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netmem_to_nmdesc(netmem)->pp_magic = 0;
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}
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static inline bool netmem_is_pp(netmem_ref netmem)
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{
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return (netmem_get_pp_magic(netmem) & PP_MAGIC_MASK) == PP_SIGNATURE;
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}
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static inline void netmem_set_pp(netmem_ref netmem, struct page_pool *pool)
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{
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netmem_to_nmdesc(netmem)->pp = pool;
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}
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static inline void netmem_set_dma_addr(netmem_ref netmem,
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unsigned long dma_addr)
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{
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netmem_to_nmdesc(netmem)->dma_addr = dma_addr;
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}
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static inline unsigned long netmem_get_dma_index(netmem_ref netmem)
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{
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unsigned long magic;
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if (WARN_ON_ONCE(netmem_is_net_iov(netmem)))
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return 0;
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magic = netmem_to_nmdesc(netmem)->pp_magic;
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return (magic & PP_DMA_INDEX_MASK) >> PP_DMA_INDEX_SHIFT;
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}
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static inline void netmem_set_dma_index(netmem_ref netmem,
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unsigned long id)
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{
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unsigned long magic;
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if (WARN_ON_ONCE(netmem_is_net_iov(netmem)))
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return;
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magic = netmem_get_pp_magic(netmem) | (id << PP_DMA_INDEX_SHIFT);
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netmem_to_nmdesc(netmem)->pp_magic = magic;
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}
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#endif
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