examples/vhost: use API to check in-flight packets

In async data path, call rte_vhost_async_get_inflight_thread_unsafe()
API to directly return the number of in-flight packets instead of
maintaining

examples/vhost: use API to check in-flight packets

In async data path, call rte_vhost_async_get_inflight_thread_unsafe()
API to directly return the number of in-flight packets instead of
maintaining a local variable.

Signed-off-by: Xuan Ding <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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vhost: integrate dmadev in asynchronous data-path

Since dmadev is introduced in 21.11, to avoid the overhead of vhost DMA
abstraction layer and simplify application logics, this patch integrates
dma

vhost: integrate dmadev in asynchronous data-path

Since dmadev is introduced in 21.11, to avoid the overhead of vhost DMA
abstraction layer and simplify application logics, this patch integrates
dmadev in asynchronous data path.

Signed-off-by: Jiayu Hu <[email protected]>
Signed-off-by: Sunil Pai G <[email protected]>
Tested-by: Yvonne Yang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: handle memory hotplug for async vhost

When the guest memory is hotplugged, the vhost application which
enables DMA acceleration must stop DMA transfers before the vhost
re-maps the g

examples/vhost: handle memory hotplug for async vhost

When the guest memory is hotplugged, the vhost application which
enables DMA acceleration must stop DMA transfers before the vhost
re-maps the guest memory.

To accomplish that, we need to do these changes in the vhost sample:
1. add inflight packets count.
2. add vring_state_changed() callback.
3. add inflight packets clear process in destroy_device() and
vring_state_changed().

Signed-off-by: Cheng Jiang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: remove async inflight packet counter

Remove async inflight packet counter since there is no need to keep
tracking it. Increase MAX_ENQUEUED_SIZE to prevent packet segment number
trac

examples/vhost: remove async inflight packet counter

Remove async inflight packet counter since there is no need to keep
tracking it. Increase MAX_ENQUEUED_SIZE to prevent packet segment number
tracking ring from being exhausted.

Fixes: a68ba8e0a6b6 ("examples/vhost: refactor vhost data path")

Signed-off-by: Cheng Jiang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: refactor vhost data path

Change the vm2vm data path to batch enqueue for better performance.
Support latest async vhost API, refactor vhost async data path,
replace rte_atomicNN_xxx

examples/vhost: refactor vhost data path

Change the vm2vm data path to batch enqueue for better performance.
Support latest async vhost API, refactor vhost async data path,
replace rte_atomicNN_xxx to __atomic_XXX and clean some codes.

Signed-off-by: Cheng Jiang <[email protected]>
Reviewed-by: Jiayu Hu <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: support vhost async data path

This patch is to implement vhost DMA operation callbacks for CBDMA
PMD and add vhost async data-path in vhost sample. With providing
callback implementa

examples/vhost: support vhost async data path

This patch is to implement vhost DMA operation callbacks for CBDMA
PMD and add vhost async data-path in vhost sample. With providing
callback implementation for CBDMA, vswitch can leverage IOAT to
accelerate vhost async data-path.

Signed-off-by: Cheng Jiang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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net: add rte prefix to ether structures

Add 'rte_' prefix to structures:
- rename struct ether_addr as struct rte_ether_addr.
- rename struct ether_hdr as struct rte_ether_hdr.
- rename struct vlan_

net: add rte prefix to ether structures

Add 'rte_' prefix to structures:
- rename struct ether_addr as struct rte_ether_addr.
- rename struct ether_hdr as struct rte_ether_hdr.
- rename struct vlan_hdr as struct rte_vlan_hdr.
- rename struct vxlan_hdr as struct rte_vxlan_hdr.
- rename struct vxlan_gpe_hdr as struct rte_vxlan_gpe_hdr.

Do not update the command line library to avoid adding a dependency to
librte_net.

Signed-off-by: Olivier Matz <[email protected]>
Reviewed-by: Stephen Hemminger <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>
Reviewed-by: Ferruh Yigit <[email protected]>

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examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <bruce.richardson@i

examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <[email protected]>

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examples/vhost: demonstrate the new generic APIs

Now DPDK vhost lib has been generic enough, that it can be used to
implement any vhost-user drivers.

For example, this patch implements a very simpl

examples/vhost: demonstrate the new generic APIs

Now DPDK vhost lib has been generic enough, that it can be used to
implement any vhost-user drivers.

For example, this patch implements a very simple vhost-user net driver,
mainly for demonstrating how to use those generic vhost APIs.

And when the --builtin-net-driver option is used, the example virtio-net
driver code will be invoked, instead of the one provided from the vhost
library.

Signed-off-by: Yuanhan Liu <[email protected]>

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vhost: do not include net specific headers

Include it internally, at vhost.h.

Signed-off-by: Yuanhan Liu <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

vhost: drop the Rx and Tx queue macro

They are virtio-net specific and should be defined inside the virtio-net
driver.

Signed-off-by: Yuanhan Liu <[email protected]>
Reviewed-by: Maxime C

vhost: drop the Rx and Tx queue macro

They are virtio-net specific and should be defined inside the virtio-net
driver.

Signed-off-by: Yuanhan Liu <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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vhost: export device id as the interface to applications

With all the previous prepare works, we are just one step away from
the final ABI refactoring. That is, to change current API to let them
sti

vhost: export device id as the interface to applications

With all the previous prepare works, we are just one step away from
the final ABI refactoring. That is, to change current API to let them
stick to vid instead of the old virtio_net dev.

Signed-off-by: Yuanhan Liu <[email protected]>
Tested-by: Rich Lane <[email protected]>
Acked-by: Rich Lane <[email protected]>

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vhost: rename device id variable

I failed to figure out what does "fh" mean here for a long while.
The only guess I could have had is "file handle". So, you get the
point that it's not well named.

vhost: rename device id variable

I failed to figure out what does "fh" mean here for a long while.
The only guess I could have had is "file handle". So, you get the
point that it's not well named.

I then figured it out that "fh" is derived from the fuse lib, and
my above guess is right. However, device_fh represents a virtio
net device ID. Therefore, here I rename it to vid (Virtio-net device
ID, or Vhost device ID; choose one you prefer) to make it easier for
understanding.

This name (vid) then will be considered to the only interface to
applications. That's another reason to do the rename: it's our
interface, make it more understandable.

Signed-off-by: Yuanhan Liu <[email protected]>
Tested-by: Rich Lane <[email protected]>
Acked-by: Rich Lane <[email protected]>

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examples/vhost: make a copy of virtio device id

Make a copy of virtio device id (device_fh) from the virtio_net struct,
so that we could have less dependency on the virtio_net struct.

Signed-off-by

examples/vhost: make a copy of virtio device id

Make a copy of virtio device id (device_fh) from the virtio_net struct,
so that we could have less dependency on the virtio_net struct.

Signed-off-by: Yuanhan Liu <[email protected]>
Tested-by: Rich Lane <[email protected]>
Acked-by: Rich Lane <[email protected]>

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examples/vhost: fix corrupted vdev tailq list

There are two tailq lists, one for logging all vhost devices, another
one for logging vhost devices distributed on a specific core. However,
there is ju

examples/vhost: fix corrupted vdev tailq list

There are two tailq lists, one for logging all vhost devices, another
one for logging vhost devices distributed on a specific core. However,
there is just one tailq entry, named "next", to chain the two list,
which is wrong and could result to a corrupted tailq list, that the
tailq list might always be non-empty: the entry is still there even
after you have invoked TAILQ_REMOVE several times.

Fix it by introducing two tailq entries, one for each list.

Fixes: 45657a5c6861 ("examples/vhost: use tailq to link vhost devices")

Signed-off-by: Yuanhan Liu <[email protected]>

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examples/vhost: embed statistics into device structure

Embed dev_statistics into vhost_dev struct, which could clean
the code a bit.

Signed-off-by: Yuanhan Liu <[email protected]>

examples/vhost: use tailq to link vhost devices

To simplify code and logic.

Signed-off-by: Yuanhan Liu <[email protected]>

examples/vhost: remove the non-working zero copy code

It's reported that it's has not been working for a long while. And due
to it's complex, it's better to redesign it than to fix it to make it
wor

examples/vhost: remove the non-working zero copy code

It's reported that it's has not been working for a long while. And due
to it's complex, it's better to redesign it than to fix it to make it
work again.

Signed-off-by: Yuanhan Liu <[email protected]>

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examples: remove useless debug flags

The debug logs must be enabled at compile-time and run-time.
There are also some internal flags in some examples to enable the debug
logs of the applications. Th

examples: remove useless debug flags

The debug logs must be enabled at compile-time and run-time.
There are also some internal flags in some examples to enable the debug
logs of the applications. They are now enabled in debug configs and
can be disabled thanks to the more generic logtype mechanism:
rte_set_log_type(RTE_LOGTYPE_USER1, 0);

Removing these #ifdef allows to test these code branches more easily
and avoid dead code pitfalls.

Signed-off-by: Thomas Monjalon <[email protected]>
Acked-by: Yuanhan Liu <[email protected]>

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examples: no more bare metal environment

Signed-off-by: David Marchand <[email protected]>
Signed-off-by: Thomas Monjalon <[email protected]>
Acked-by: Neil Horman <nhorman@tuxdriver.

examples: no more bare metal environment

Signed-off-by: David Marchand <[email protected]>
Signed-off-by: Thomas Monjalon <[email protected]>
Acked-by: Neil Horman <[email protected]>

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examples/vhost: hpa regions for zero copy

check_hpa_regions, fill_hpa_memory_regions and hpa memory region
data structure are added back from old virtio-net.c.

Add hpa (host physical address) regio

examples/vhost: hpa regions for zero copy

check_hpa_regions, fill_hpa_memory_regions and hpa memory region
data structure are added back from old virtio-net.c.

Add hpa (host physical address) region generation/destroy logic.
gpa<->hpa memory translation regions are generated at new_device,
when a virtio device is ready for packet processing.

Signed-off-by: Huawei Xie <[email protected]>
Acked-by: Changchun Ouyang <[email protected]>

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examples/vhost: add vhost dev struct

Define vhost_dev data structure.
Change reference to virtio_dev to vhost_dev.
The vhost example use vdev data structure for switching related logic
and container

examples/vhost: add vhost dev struct

Define vhost_dev data structure.
Change reference to virtio_dev to vhost_dev.
The vhost example use vdev data structure for switching related logic
and container for virtio_dev.

Signed-off-by: Huawei Xie <[email protected]>
Acked-by: Changchun Ouyang <[email protected]>

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examples/vhost: copy old vhost example

This patch copies two files main.c/main.h from most recent vhost example
(before transforming into a library) as the base for new vhost example.

Signed-off-by

examples/vhost: copy old vhost example

This patch copies two files main.c/main.h from most recent vhost example
(before transforming into a library) as the base for new vhost example.

Signed-off-by: Huawei Xie <[email protected]>
Acked-by: Changchun Ouyang <[email protected]>

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examples/vhost: restrict log type namespace

RTE_LOGTYPE_CONFIG, RTE_LOGTYPE_DATA and RTE_LOGTYPE_PORT are renamed
by adding VHOST prefix.
It prevents from conflict with new RTE_LOGTYPE_PORT of packe

examples/vhost: restrict log type namespace

RTE_LOGTYPE_CONFIG, RTE_LOGTYPE_DATA and RTE_LOGTYPE_PORT are renamed
by adding VHOST prefix.
It prevents from conflict with new RTE_LOGTYPE_PORT of packet framework.

Signed-off-by: Thomas Monjalon <[email protected]>

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remove trailing whitespaces

This commit removes trailing whitespace from lines in files. Almost all
files are affected, as the BSD license copyright header had trailing
whitespace on 4 lines in it [

remove trailing whitespaces

This commit removes trailing whitespace from lines in files. Almost all
files are affected, as the BSD license copyright header had trailing
whitespace on 4 lines in it [hence the number of files reporting 8 lines
changed in the diffstat].

Signed-off-by: Bruce Richardson <[email protected]>
Acked-by: Neil Horman <[email protected]>
[Thomas: remove spaces before tabs in libs]
[Thomas: remove more trailing spaces in non-C files]
Signed-off-by: Thomas Monjalon <[email protected]>

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