€•
W      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ%/translations/zh_CN/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ%/translations/zh_TW/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ%/translations/it_IT/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ%/translations/ja_JP/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ%/translations/ko_KR/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒPortuguese (Brazilian)”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ%/translations/pt_BR/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh–sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ%/translations/sp_SP/networking/netmem”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ SPDX-License-Identifier: GPL-2.0”h]”hŒ SPDX-License-Identifier: GPL-2.0”…””}”hh·sbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1hµhhh²hh³Œ?/var/lib/git/docbuild/linux/Documentation/networking/netmem.rst”h´KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒ"Netmem Support for Network Drivers”h]”hŒ"Netmem Support for Network Drivers”…””}”(hhÏh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhhÊh²hh³hÇh´KubhŒ	paragraph”“”)”}”(hX   This document outlines the requirements for network drivers to support netmem,
an abstract memory type that enables features like device memory TCP. By
supporting netmem, drivers can work with various underlying memory types
with little to no modification.”h]”hX   This document outlines the requirements for network drivers to support netmem,
an abstract memory type that enables features like device memory TCP. By
supporting netmem, drivers can work with various underlying memory types
with little to no modification.”…””}”(hhßh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhÞ)”}”(hŒBenefits of Netmem :”h]”hŒBenefits of Netmem :”…””}”(hhíh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhŒbullet_list”“”)”}”(hhh]”(hŒ	list_item”“”)”}”(hŒ¢Flexibility: Netmem can be backed by different memory types (e.g., struct
page, DMA-buf), allowing drivers to support various use cases such as device
memory TCP.”h]”hÞ)”}”(hŒ¢Flexibility: Netmem can be backed by different memory types (e.g., struct
page, DMA-buf), allowing drivers to support various use cases such as device
memory TCP.”h]”hŒ¢Flexibility: Netmem can be backed by different memory types (e.g., struct
page, DMA-buf), allowing drivers to support various use cases such as device
memory TCP.”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hhýh²hh³hÇh´Nubj  )”}”(hŒZFuture-proof: Drivers with netmem support are ready for upcoming
features that rely on it.”h]”hÞ)”}”(hŒZFuture-proof: Drivers with netmem support are ready for upcoming
features that rely on it.”h]”hŒZFuture-proof: Drivers with netmem support are ready for upcoming
features that rely on it.”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hhýh²hh³hÇh´Nubj  )”}”(hŒtSimplified Development: Drivers interact with a consistent API,
regardless of the underlying memory implementation.
”h]”hÞ)”}”(hŒsSimplified Development: Drivers interact with a consistent API,
regardless of the underlying memory implementation.”h]”hŒsSimplified Development: Drivers interact with a consistent API,
regardless of the underlying memory implementation.”…””}”(hj6  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj2  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hhýh²hh³hÇh´Nubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ*”uh1hûh³hÇh´KhhÊh²hubhÉ)”}”(hhh]”(hÎ)”}”(hŒDriver RX Requirements”h]”hŒDriver RX Requirements”…””}”(hjU  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhjR  h²hh³hÇh´KubhŒenumerated_list”“”)”}”(hhh]”(j  )”}”(hŒ#The driver must support page_pool.
”h]”hÞ)”}”(hŒ"The driver must support page_pool.”h]”hŒ"The driver must support page_pool.”…””}”(hjl  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khjh  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³hÇh´Nubj  )”}”(hŒ;The driver must support the tcp-data-split ethtool option.
”h]”hÞ)”}”(hŒ:The driver must support the tcp-data-split ethtool option.”h]”hŒ:The driver must support the tcp-data-split ethtool option.”…””}”(hj„  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj€  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³hÇh´Nubj  )”}”(hX¤  The driver must use the page_pool netmem APIs for payload memory. The netmem
APIs currently 1-to-1 correspond with page APIs. Conversion to netmem should
be achievable by switching the page APIs to netmem APIs and tracking memory
via netmem_refs in the driver rather than struct page * :

- page_pool_alloc -> page_pool_alloc_netmem
- page_pool_get_dma_addr -> page_pool_get_dma_addr_netmem
- page_pool_put_page -> page_pool_put_netmem

Not all page APIs have netmem equivalents at the moment. If your driver
relies on a missing netmem API, feel free to add and propose to netdev@, or
reach out to the maintainers and/or almasrymina@google.com for help adding
the netmem API.
”h]”(hÞ)”}”(hX  The driver must use the page_pool netmem APIs for payload memory. The netmem
APIs currently 1-to-1 correspond with page APIs. Conversion to netmem should
be achievable by switching the page APIs to netmem APIs and tracking memory
via netmem_refs in the driver rather than struct page * :”h]”hX  The driver must use the page_pool netmem APIs for payload memory. The netmem
APIs currently 1-to-1 correspond with page APIs. Conversion to netmem should
be achievable by switching the page APIs to netmem APIs and tracking memory
via netmem_refs in the driver rather than struct page * :”…””}”(hjœ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj˜  ubhü)”}”(hhh]”(j  )”}”(hŒ)page_pool_alloc -> page_pool_alloc_netmem”h]”hÞ)”}”(hj¯  h]”hŒ)page_pool_alloc -> page_pool_alloc_netmem”…””}”(hj±  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K"hj­  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hjª  ubj  )”}”(hŒ7page_pool_get_dma_addr -> page_pool_get_dma_addr_netmem”h]”hÞ)”}”(hjÆ  h]”hŒ7page_pool_get_dma_addr -> page_pool_get_dma_addr_netmem”…””}”(hjÈ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K#hjÄ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hjª  ubj  )”}”(hŒ+page_pool_put_page -> page_pool_put_netmem
”h]”hÞ)”}”(hŒ*page_pool_put_page -> page_pool_put_netmem”h]”hŒ*page_pool_put_page -> page_pool_put_netmem”…””}”(hjß  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K$hjÛ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hjª  ubeh}”(h]”h ]”h"]”h$]”h&]”jP  Œ-”uh1hûh³hÇh´K"hj˜  ubhÞ)”}”(hŒîNot all page APIs have netmem equivalents at the moment. If your driver
relies on a missing netmem API, feel free to add and propose to netdev@, or
reach out to the maintainers and/or almasrymina@google.com for help adding
the netmem API.”h]”(hŒ¸Not all page APIs have netmem equivalents at the moment. If your driver
relies on a missing netmem API, feel free to add and propose to netdev@, or
reach out to the maintainers and/or ”…””}”(hjú  h²hh³Nh´NubhŒ	reference”“”)”}”(hŒalmasrymina@google.com”h]”hŒalmasrymina@google.com”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:almasrymina@google.com”uh1j  hjú  ubhŒ  for help adding
the netmem API.”…””}”(hjú  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K&hj˜  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³hÇh´Nubj  )”}”(hX  The driver must use the following PP_FLAGS:

- PP_FLAG_DMA_MAP: netmem is not dma-mappable by the driver. The driver
  must delegate the dma mapping to the page_pool, which knows when
  dma-mapping is (or is not) appropriate.
- PP_FLAG_DMA_SYNC_DEV: netmem dma addr is not necessarily dma-syncable
  by the driver. The driver must delegate the dma syncing to the page_pool,
  which knows when dma-syncing is (or is not) appropriate.
- PP_FLAG_ALLOW_UNREADABLE_NETMEM. The driver must specify this flag iff
  tcp-data-split is enabled.
”h]”(hÞ)”}”(hŒ+The driver must use the following PP_FLAGS:”h]”hŒ+The driver must use the following PP_FLAGS:”…””}”(hj(  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K+hj$  ubhü)”}”(hhh]”(j  )”}”(hŒ®PP_FLAG_DMA_MAP: netmem is not dma-mappable by the driver. The driver
must delegate the dma mapping to the page_pool, which knows when
dma-mapping is (or is not) appropriate.”h]”hÞ)”}”(hŒ®PP_FLAG_DMA_MAP: netmem is not dma-mappable by the driver. The driver
must delegate the dma mapping to the page_pool, which knows when
dma-mapping is (or is not) appropriate.”h]”hŒ®PP_FLAG_DMA_MAP: netmem is not dma-mappable by the driver. The driver
must delegate the dma mapping to the page_pool, which knows when
dma-mapping is (or is not) appropriate.”…””}”(hj=  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K-hj9  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hj6  ubj  )”}”(hŒÈPP_FLAG_DMA_SYNC_DEV: netmem dma addr is not necessarily dma-syncable
by the driver. The driver must delegate the dma syncing to the page_pool,
which knows when dma-syncing is (or is not) appropriate.”h]”hÞ)”}”(hŒÈPP_FLAG_DMA_SYNC_DEV: netmem dma addr is not necessarily dma-syncable
by the driver. The driver must delegate the dma syncing to the page_pool,
which knows when dma-syncing is (or is not) appropriate.”h]”hŒÈPP_FLAG_DMA_SYNC_DEV: netmem dma addr is not necessarily dma-syncable
by the driver. The driver must delegate the dma syncing to the page_pool,
which knows when dma-syncing is (or is not) appropriate.”…””}”(hjU  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K0hjQ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hj6  ubj  )”}”(hŒbPP_FLAG_ALLOW_UNREADABLE_NETMEM. The driver must specify this flag iff
tcp-data-split is enabled.
”h]”hÞ)”}”(hŒaPP_FLAG_ALLOW_UNREADABLE_NETMEM. The driver must specify this flag iff
tcp-data-split is enabled.”h]”hŒaPP_FLAG_ALLOW_UNREADABLE_NETMEM. The driver must specify this flag iff
tcp-data-split is enabled.”…””}”(hjm  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K3hji  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hj6  ubeh}”(h]”h ]”h"]”h$]”h&]”jP  jù  uh1hûh³hÇh´K-hj$  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³Nh´Nubj  )”}”(hXl  The driver must not assume the netmem is readable and/or backed by pages.
The netmem returned by the page_pool may be unreadable, in which case
netmem_address() will return NULL. The driver must correctly handle
unreadable netmem, i.e. don't attempt to handle its contents when
netmem_address() is NULL.

Ideally, drivers should not have to check the underlying netmem type via
helpers like netmem_is_net_iov() or convert the netmem to any of its
underlying types via netmem_to_page() or netmem_to_net_iov(). In most cases,
netmem or page_pool helpers that abstract this complexity are provided
(and more can be added).
”h]”(hÞ)”}”(hX/  The driver must not assume the netmem is readable and/or backed by pages.
The netmem returned by the page_pool may be unreadable, in which case
netmem_address() will return NULL. The driver must correctly handle
unreadable netmem, i.e. don't attempt to handle its contents when
netmem_address() is NULL.”h]”hX1  The driver must not assume the netmem is readable and/or backed by pages.
The netmem returned by the page_pool may be unreadable, in which case
netmem_address() will return NULL. The driver must correctly handle
unreadable netmem, i.e. donâ€™t attempt to handle its contents when
netmem_address() is NULL.”…””}”(hj‘  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K6hj  ubhÞ)”}”(hX:  Ideally, drivers should not have to check the underlying netmem type via
helpers like netmem_is_net_iov() or convert the netmem to any of its
underlying types via netmem_to_page() or netmem_to_net_iov(). In most cases,
netmem or page_pool helpers that abstract this complexity are provided
(and more can be added).”h]”hX:  Ideally, drivers should not have to check the underlying netmem type via
helpers like netmem_is_net_iov() or convert the netmem to any of its
underlying types via netmem_to_page() or netmem_to_net_iov(). In most cases,
netmem or page_pool helpers that abstract this complexity are provided
(and more can be added).”…””}”(hjŸ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K<hj  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³hÇh´Nubj  )”}”(hX™  The driver must use page_pool_dma_sync_netmem_for_cpu() in lieu of
dma_sync_single_range_for_cpu(). For some memory providers, dma_syncing for
CPU will be done by the page_pool, for others (particularly dmabuf memory
provider), dma syncing for CPU is the responsibility of the userspace using
dmabuf APIs. The driver must delegate the entire dma-syncing operation to
the page_pool which will do it correctly.
”h]”hÞ)”}”(hX˜  The driver must use page_pool_dma_sync_netmem_for_cpu() in lieu of
dma_sync_single_range_for_cpu(). For some memory providers, dma_syncing for
CPU will be done by the page_pool, for others (particularly dmabuf memory
provider), dma syncing for CPU is the responsibility of the userspace using
dmabuf APIs. The driver must delegate the entire dma-syncing operation to
the page_pool which will do it correctly.”h]”hX˜  The driver must use page_pool_dma_sync_netmem_for_cpu() in lieu of
dma_sync_single_range_for_cpu(). For some memory providers, dma_syncing for
CPU will be done by the page_pool, for others (particularly dmabuf memory
provider), dma syncing for CPU is the responsibility of the userspace using
dmabuf APIs. The driver must delegate the entire dma-syncing operation to
the page_pool which will do it correctly.”…””}”(hj·  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KBhj³  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³hÇh´Nubj  )”}”(hXÂ  Avoid implementing driver-specific recycling on top of the page_pool. Drivers
cannot hold onto a struct page to do their own recycling as the netmem may
not be backed by a struct page. However, you may hold onto a page_pool
reference with page_pool_fragment_netmem() or page_pool_ref_netmem() for
that purpose, but be mindful that some netmem types might have longer
circulation times, such as when userspace holds a reference in zerocopy
scenarios.
”h]”hÞ)”}”(hXÁ  Avoid implementing driver-specific recycling on top of the page_pool. Drivers
cannot hold onto a struct page to do their own recycling as the netmem may
not be backed by a struct page. However, you may hold onto a page_pool
reference with page_pool_fragment_netmem() or page_pool_ref_netmem() for
that purpose, but be mindful that some netmem types might have longer
circulation times, such as when userspace holds a reference in zerocopy
scenarios.”h]”hXÁ  Avoid implementing driver-specific recycling on top of the page_pool. Drivers
cannot hold onto a struct page to do their own recycling as the netmem may
not be backed by a struct page. However, you may hold onto a page_pool
reference with page_pool_fragment_netmem() or page_pool_ref_netmem() for
that purpose, but be mindful that some netmem types might have longer
circulation times, such as when userspace holds a reference in zerocopy
scenarios.”…””}”(hjÏ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KIhjË  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hje  h²hh³hÇh´Nubeh}”(h]”h ]”h"]”h$]”h&]”Œenumtype”Œarabic”Œprefix”hŒsuffix”Œ.”uh1jc  hjR  h²hh³hÇh´Kubeh}”(h]”Œdriver-rx-requirements”ah ]”h"]”Œdriver rx requirements”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KubhÉ)”}”(hhh]”(hÎ)”}”(hŒDriver TX Requirements”h]”hŒDriver TX Requirements”…””}”(hjù  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhjö  h²hh³hÇh´KRubjd  )”}”(hhh]”(j  )”}”(hXâ  The Driver must not pass the netmem dma_addr to any of the dma-mapping APIs
directly. This is because netmem dma_addrs may come from a source like
dma-buf that is not compatible with the dma-mapping APIs.

Helpers like netmem_dma_unmap_page_attrs() & netmem_dma_unmap_addr_set()
should be used in lieu of dma_unmap_page[_attrs](), dma_unmap_addr_set().
The netmem variants will handle netmem dma_addrs correctly regardless of the
source, delegating to the dma-mapping APIs when appropriate.

Not all dma-mapping APIs have netmem equivalents at the moment. If your
driver relies on a missing netmem API, feel free to add and propose to
netdev@, or reach out to the maintainers and/or almasrymina@google.com for
help adding the netmem API.
”h]”(hÞ)”}”(hŒÌThe Driver must not pass the netmem dma_addr to any of the dma-mapping APIs
directly. This is because netmem dma_addrs may come from a source like
dma-buf that is not compatible with the dma-mapping APIs.”h]”hŒÌThe Driver must not pass the netmem dma_addr to any of the dma-mapping APIs
directly. This is because netmem dma_addrs may come from a source like
dma-buf that is not compatible with the dma-mapping APIs.”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KThj
  ubhÞ)”}”(hX  Helpers like netmem_dma_unmap_page_attrs() & netmem_dma_unmap_addr_set()
should be used in lieu of dma_unmap_page[_attrs](), dma_unmap_addr_set().
The netmem variants will handle netmem dma_addrs correctly regardless of the
source, delegating to the dma-mapping APIs when appropriate.”h]”hX  Helpers like netmem_dma_unmap_page_attrs() & netmem_dma_unmap_addr_set()
should be used in lieu of dma_unmap_page[_attrs](), dma_unmap_addr_set().
The netmem variants will handle netmem dma_addrs correctly regardless of the
source, delegating to the dma-mapping APIs when appropriate.”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KXhj
  ubhÞ)”}”(hŒõNot all dma-mapping APIs have netmem equivalents at the moment. If your
driver relies on a missing netmem API, feel free to add and propose to
netdev@, or reach out to the maintainers and/or almasrymina@google.com for
help adding the netmem API.”h]”(hŒ¿Not all dma-mapping APIs have netmem equivalents at the moment. If your
driver relies on a missing netmem API, feel free to add and propose to
netdev@, or reach out to the maintainers and/or ”…””}”(hj*  h²hh³Nh´Nubj  )”}”(hŒalmasrymina@google.com”h]”hŒalmasrymina@google.com”…””}”(hj2  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:almasrymina@google.com”uh1j  hj*  ubhŒ  for
help adding the netmem API.”…””}”(hj*  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K]hj
  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1j   hj  h²hh³hÇh´Nubj  )”}”(hŒCDriver should declare support by setting `netdev->netmem_tx = true`”h]”hÞ)”}”(hjT  h]”(hŒ)Driver should declare support by setting ”…””}”(hjV  h²hh³Nh´NubhŒtitle_reference”“”)”}”(hŒ`netdev->netmem_tx = true`”h]”hŒnetdev->netmem_tx = true”…””}”(hj_  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j]  hjV  ubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KbhjR  ubah}”(h]”h ]”h"]”h$]”h&]”uh1j   hj  h²hh³hÇh´Nubeh}”(h]”h ]”h"]”h$]”h&]”jé  jê  jë  hjì  jí  uh1jc  hjö  h²hh³hÇh´KTubeh}”(h]”Œdriver-tx-requirements”ah ]”h"]”Œdriver tx requirements”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KRubeh}”(h]”Œ"netmem-support-for-network-drivers”ah ]”h"]”Œ"netmem support for network drivers”ah$]”h&]”uh1hÈhhh²hh³hÇh´Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”hÇuh1hŒcurrent_source”NŒcurrent_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(hÍNŒ	generator”NŒ	datestamp”NŒsource_link”NŒ
source_url”NŒtoc_backlinks”Œentry”Œfootnote_backlinks”KŒsectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒstrip_classes”NŒreport_level”KŒ
halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ	traceback”ˆŒinput_encoding”Œ	utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”j²  Œerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œlanguage_code”Œen”Œrecord_dependencies”NŒconfig”NŒ	id_prefix”hŒauto_id_prefix”Œid”Œdump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”hÇŒ_destination”NŒ_config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒraw_enabled”KŒline_length_limit”M'Œpep_references”NŒpep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒrfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ	tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œsmart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œdocinfo_xform”KŒsectsubtitle_xform”‰Œimage_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(jŒ  j‰  jó  jð  j„  j  uŒ	nametypes”}”(jŒ  ‰jó  ‰j„  ‰uh}”(j‰  hÊjð  jR  j  jö  uŒfootnote_refs”}”Œcitation_refs”}”Œautofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ	footnotes”]”Œ	citations”]”Œautofootnote_start”KŒsymbol_footnote_start”K Œ
id_counter”Œcollections”ŒCounter”“”}”…”R”Œparse_messages”]”Œtransform_messages”]”Œtransformer”NŒinclude_log”]”Œ
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