From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
From: Xuan Ding
This patch refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides/prog_guide
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides
From: Xuan Ding
RTE_ETH_RX_OFFLOAD_HEADER_SPLIT offload was introduced some time ago to
substitute bit-field header_split in struct rte_eth_rxmode. It allows
to enable header split offload with the header size controlled using
split_hdr_size in the same structure.
Right now, no single PMD
k memory and external memory, respectively.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
Signed-off-by: Wenxuan Wu
Reviewed-by: Qi Zhang
---
lib/ethdev/rte_ethdev.c | 40 +---
lib/ethdev/rte_ethdev.h | 28 +++-
2 files changed, 60 inserti
From: Xuan Ding
Protocol based buffer split consists of splitting a received packet into
several separate segments based on the packet content. It is useful in some
scenarios, such as GPU acceleration. The splitting will help to enable
true zero copy and hence improve the performance
k memory and external memory, respectively.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
Signed-off-by: Wenxuan Wu
Reviewed-by: Qi Zhang
---
lib/ethdev/rte_ethdev.c | 40 +---
lib/ethdev/rte_ethdev.h | 28 +++-
2 files changed, 60 inserti
From: Xuan Ding
This patch adds missing per-virtqueue statistics in async dequeue path.
Fixes: 84d5204310d7("vhost: support async dequeue for split ring")
Cc: sta...@dpdk.org
Signed-off-by: Xuan Ding
---
lib/vhost/virtio_net.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a
From: Xuan Ding
This patch adds missing per-virtqueue statistics in async dequeue path.
Fixes: 84d5204310d7("vhost: support async dequeue for split ring")
Signed-off-by: Xuan Ding
---
v2:
* Since this issue was introduced and fixed in same release,
no need to add cc stable.
---
From: Xuan Ding
This patch updates the correct usage for async enqueue APIs.
The rte_vhost_poll_enqueue_completed() needs to be
called in time to avoid packet loss due to full dma ring.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide/vhost_lib.rst | 9 +
1 file changed, 9
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free DMA vchannels finished to use.
Note: this API should be called after async channel unregister.
v4:
* Rebase to 22.11 rc1.
* Fix the usage of 'dma_ref_count' to mak
From: Xuan Ding
Add a new API rte_vhost_async_dma_unconfigure() to unconfigure DMA
vchannels in vhost async data path. Lock protection are also added
to protect DMA vchannels configuration and unconfiguration
from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() to manually
free DMA vchannels. Before unconfiguration, need make sure the
specified DMA device is no longer used by any vhost ports.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 38
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free DMA vchannels finished to use.
Note: this API should be called after async channel unregister.
v5:
* Use mutex instead of spinlock.
* Improve code readability.
v4:
* Rebase to
From: Xuan Ding
Add a new API rte_vhost_async_dma_unconfigure() to unconfigure DMA
vchannels in vhost async data path. Lock protection are also added
to protect DMA vchannels configuration and unconfiguration
from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() to manually free
DMA vchannels. Before unconfiguration, make sure the specified DMA
device is no longer used by any vhost ports.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 40
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free DMA vchannels finished to use.
v6:
* Move DMA unconfiguration to the end due to DMA devices maybe reused
after destroy_device().
* Refine the doc to claim the DMA device should
From: Xuan Ding
Add a new API rte_vhost_async_dma_unconfigure() to unconfigure DMA
vchannels in vhost async data path. Lock protection are also added
to protect DMA vchannels configuration and unconfiguration
from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() to manually free
DMA vchannels. Before unconfiguration, make sure the specified DMA
device is no longer used by any vhost ports.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 8
1 file changed, 8 insertions
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free DMA vchannels finished to use.
v7:
* Add inflight packets processing.
* Fix CI error.
v6:
* Move DMA unconfiguration to the end due to DMA devices maybe reused
after
From: Xuan Ding
Add a new API rte_vhost_async_dma_unconfigure() to unconfigure DMA
vchannels in vhost async data path. Lock protection are also added
to protect DMA vchannels configuration and unconfiguration
from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() to manually free
DMA vchannels. Before unconfiguration, make sure the specified DMA
device is no longer used by any vhost ports.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 8
1 file changed, 8 insertions
From: Xuan Ding
Add a new API rte_vhost_async_dma_unconfigure() to unconfigure DMA
vChannels in vhost async data path. Lock protection are also added
to protect DMA vChannel configuration and unconfiguration
from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free DMA vChannels finished to use.
v8:
* Check inflight packets release virtual channel.
v7:
* Add inflight packets processing.
* Fix CI error.
v6:
* Move DMA unconfiguration to the
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() to manually free
DMA vChannels. Before unconfiguration, make sure the specified DMA
vChannel is no longer used by any vhost ports.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 8
1 file changed, 8 insertions
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free the DMA vchannel finished to use.
Note: this API should be called after async channel unregister.
v3:
* Rebase to latest DPDK.
* Refine some descriptions in the doc.
* Fix one bug
From: Xuan Ding
This patch adds a new API rte_vhost_async_dma_unconfigure() to unconfigure
DMA vchannels in vhost async data path.
Lock protection are also added to protect DMA vchannels configuration and
unconfiguration from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() API
to manually free DMA vchannels instead of waiting
until the program ends to be released.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 45 ++-
examples/vhost/main.h | 1
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free the DMA vchannel finished to use.
Note: this API should be called after async channel unregister.
Xuan Ding (2):
vhost: introduce DMA vchannel unconfiguration
example/vhost
From: Xuan Ding
This patch adds a new API rte_vhost_async_dma_unconfigure() to unconfigure
DMA vchannels in vhost async data path.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide/vhost_lib.rst| 5
doc/guides/rel_notes/release_22_11.rst | 2 ++
lib/vhost/rte_vhost_async.h
From: Xuan Ding
This patch uses rte_vhost_async_dma_unconfigure() API
to manually free 'dma_coy_track' array rather than wait for
the program to finish before being freed.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 7 +++
1 file changed, 7 insertions(+)
diff --git
From: Xuan Ding
This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free the DMA vchannel finished to use.
Note: this API should be called after async channel unregister.
v2:
* Add spinlock protection.
* Fix a memory leak issue.
* Refine the doc.
Xuan
From: Xuan Ding
This patch adds a new API rte_vhost_async_dma_unconfigure() to unconfigure
DMA vchannels in vhost async data path.
Lock protection are also added to protect DMA vchannels configuration and
unconfiguration from concurrent calls.
Signed-off-by: Xuan Ding
---
doc/guides
From: Xuan Ding
This patch applies rte_vhost_async_dma_unconfigure() API
to manually free 'dma_copy_track' array instead of waiting
until the program ends to be released.
Signed-off-by: Xuan Ding
---
examples/vhost/main.c | 7 +++
1 file changed, 7 insertions(+)
diff --git
From: Xuan Ding
This patch updates the correct usage for async enqueue APIs.
The rte_vhost_poll_enqueue_completed() needs to be
called in time to notify the guest of completed packets and
avoid packet loss.
Signed-off-by: Xuan Ding
---
v2:
* refine doc and commit log
---
doc/guides/prog_guide
From: Xuan Ding
This patch moves the 'Recommended IOVA mode in async datapath'
section under 'Vhost asynchronous data path' as a subsection,
which make the doc cleaner.
Signed-off-by: Xuan Ding
---
doc/guides/prog_guide/vhost_lib.rst | 12 ++--
1 file changed
From: Xuan Ding
This patch moves the 'Recommended IOVA mode in async datapath'
section under 'Vhost asynchronous data path' as a subsection,
which makes the doc cleaner.
Signed-off-by: Xuan Ding
---
v2:
* fix a typo in commit log
---
doc/guides/prog_guide/vhost_lib.rst
From: Xuan Ding
This patch moves the 'Recommended IOVA mode in async datapath'
section under 'Vhost asynchronous data path' as a sub-section,
which makes the doc cleaner.
Signed-off-by: Xuan Ding
Reviewed-by: Jiayu Hu
---
v3:
* add Reviewd-by
v2:
* fix a typo in commit
From: Xuan Ding
This patch fixes the missing virtio net header copy in sync
dequeue path caused by refactoring, which affects dequeue
offloading.
Fixes: 6d823bb302c7("vhost: prepare sync for descriptor to mbuf refactoring")
Signed-off-by: Xuan Ding
---
lib/vhost/virtio_
From: Xuan Ding
This patch fixes the check to set compliant offloading flag.
Compliant offloading flag should be set when the
'legacy-ol-flags' is true.
Fixes: 3a6ee8dafb21("net/vhost: enable compliant offloading mode")
Signed-off-by: Xuan Ding
---
drivers/net/vhost/rte_e
From: Xuan Ding
The dirty page logging is only required in vhost enqueue direction for
live migration. This patch removes the unnecessary dirty page logging
in vhost dequeue direction. Otherwise, it will result in a performance
drop. Some if-else judgements are also optimized to improve
From: Xuan Ding
RTE_ETH_RX_OFFLOAD_HEADER_SPLIT offload was introduced some time ago to
substitute bit-field header_split in struct rte_eth_rxmode. It allows
to enable per-port header split offload with the header size controlled
using split_hdr_size in the same structure.
Right now, no single
From: Xuan Ding
As announced in the deprecation note, this patch removes the Rx offload
flag 'RTE_ETH_RX_OFFLOAD_HEADER_SPLIT' and 'split_hdr_size' field from
the structure 'rte_eth_rxmode'. User can still use
`RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT` for per-queue
From: Xuan Ding
As announced in the deprecation note, this patch removes the Rx offload
flag 'RTE_ETH_RX_OFFLOAD_HEADER_SPLIT' and 'split_hdr_size' field from
the structure 'rte_eth_rxmode'. Meanwhile, the place where the examples
and apps initialize the 's
From: Xuan Ding
The presence of asynchronous path allows applications to offload
memory copies to DMA engine, so as to save CPU cycles and improve
the copy performance. This patch implements vhost async dequeue data
path for split ring.
This patch set is a new design and implementation of [2
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplies the code without performance degradation.
Signed-off-by: Xuan Ding
---
lib/vhost/virtio_net.c | 23 +++
1
From: Xuan Ding
This patches refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 47 --
2 files changed, 37
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
---
doc/guides/prog_guide/vhost_lib.rst| 7 +
doc/guides/rel_notes/release_22_07.rst
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
---
doc/guides/sample_app_ug/vhost.rst | 9 +-
examples/vhost/main.c
From: Xuan Ding
This patchset introduces an unsafe API to get the number of inflight
packets in DMA engine. It should be only used within the vhost ops
which already holds the lock. Like vring state changes or device is
destroyed. Compared with rte_vhost_async_get_inflight(), this is a
lock free
From: Xuan Ding
In async data path, when vring state changes or device is destroyed,
it is necessary to know the number of inflight packets in DMA engine.
This patch provides a thread unsafe API to return the number of
inflight packets for a vhost queue without using any lock.
Signed-off-by
From: Xuan Ding
In async data path, call rte_vhost_async_get_inflight_thread_unsafe()
API to directly return the number of inflight packets instead of
maintaining a local variable.
Signed-off-by: Xuan Ding
Reviewed-by: Maxime Coquelin
---
examples/vhost/main.c | 28
From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
---
lib/vhost/virtio_net.c | 23 +++
1
From: Xuan Ding
This patches refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48 --
2 files changed, 38
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
---
doc/guides/prog_guide/vhost_lib.rst| 7 +
doc/guides/rel_notes/release_22_07.rst
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
---
doc/guides/sample_app_ug/vhost.rst | 9 +-
examples/vhost/main.c
From: Xuan Ding
Since QEMU 5.2.0 fixes the vhost split ring multi-queue reconnection
issue in commit f66337bdbfda ("vhost-user: save features of multiqueues
if chardev is closed"), this patch updates known issue to indicate
the range of affeacted QEMU versions.
Fixes: b37e95507e1b
From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
---
lib/vhost/virtio_net.c | 23 +++
1
From: Xuan Ding
This patches refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48 --
2 files changed, 38
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
---
doc/guides/prog_guide/vhost_lib.rst| 7 +
doc/guides/rel_notes/release_22_07.rst
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
---
doc/guides/sample_app_ug/vhost.rst | 9 +-
examples/vhost/main.c
From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
Reviewed-by: Maxime Coquelin
---
lib/vhost/virtio_net.c
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
Reviewed-by: Maxime Coquelin
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
---
doc/guides/prog_guide/vhost_lib.rst| 7 +
doc/guides/rel_notes/release_22_07.rst
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
---
doc/guides/sample_app_ug/vhost.rst | 9 +-
examples/vhost/main.c
From: Xuan Ding
Since QEMU 5.2.0 fixes the vhost split ring multi-queue reconnection
issue in commit f66337bdbfda ("vhost-user: save features of multiqueues
if chardev is closed"), this patch updates known issue to indicate
the range of affeacted QEMU versions.
Fixes: b37e95507e1b
From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
From: Xuan Ding
This patch refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides/prog_guide
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides
From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
From: Xuan Ding
This patch refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides/prog_guide
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides
From: Xuan Ding
The presence of asynchronous path allows applications to offload memory
copies to DMA engine, so as to save CPU cycles and improve the copy
performance. This patch set implements vhost async dequeue data path
for split ring. The code is based on latest enqueue changes [1].
This
From: Xuan Ding
This patch extracts the descriptors to buffers filling from
copy_desc_to_mbuf() into a dedicated function. Besides, enqueue
and dequeue path are refactored to use the same function
sync_fill_seg() for preparing batch elements, which simplifies
the code without performance
From: Xuan Ding
This patch refactors vhost async enqueue path and dequeue path to use
the same function async_fill_seg() for preparing batch elements,
which simplifies the code without performance degradation.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
From: Xuan Ding
This patch refactors copy_desc_to_mbuf() used by the sync
path to support both sync and async descriptor to mbuf filling.
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
lib/vhost/vhost.h | 1 +
lib/vhost/virtio_net.c | 48
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, a new API rte_vhost_async_try_dequeue_burst() is introduced.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides/prog_guide
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
Tested-by: Yvonne Yang
Reviewed-by: Maxime Coquelin
---
doc/guides
From: Xuan Ding
Since QEMU 5.2.0 fixes the vhost multi-queue reconnection issue
in commit f66337bdbfda ("vhost-user: save features of multiqueues
if chardev is closed"), this patch removes the previous description
from known issue.
Signed-off-by: Xuan Ding
---
doc/guides
From: Xuan Ding
The presence of an asynchronous path allows applications to offload
memory copies to DMA engine, so as to save CPU cycles and improve
the copy performance. This patch set is a draft implementation for
split ring in vhost async dequeue data path. The code is based on
latest
From: Xuan Ding
This patch implements asynchronous dequeue data path for vhost split
ring, with dmadev library integrated.
Signed-off-by: Xuan Ding
Signed-off-by: Yuan Wang
---
lib/vhost/rte_vhost_async.h | 37 ++-
lib/vhost/version.map | 1 +
lib/vhost/vhost.h | 1
From: Xuan Ding
This patch adds the use case for async dequeue API. Vswitch can
leverage DMA device to accelerate vhost async dequeue path.
Signed-off-by: Wenwu Ma
Signed-off-by: Yuan Wang
Signed-off-by: Xuan Ding
---
doc/guides/sample_app_ug/vhost.rst | 9 +-
examples/vhost/main.c
From: Xuan Ding
Since QEMU 5.2.0 fixes the vhost multi-queue reconnection issue
in commit f66337bdbfda ("vhost-user: save features of multiqueues
if chardev is closed"), this patch removes the previous description
from known issue.
Fixes: b37e95507e1b ("doc: add vhost multi-que
From: Xuan Ding
Header split consists of splitting a received packet into two separate
regions based on the packet content. Splitting is usually between the
packet header that can be posted to a dedicated buffer and the packet
payload that can be posted to a different buffer. This kind of
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