fix spelling in comments and strings

The tool comes from https://github.com/jsoref

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

event/dsw: use maintenance facility

Set the RTE_EVENT_DEV_CAP_REQUIRES_MAINT flag, and perform DSW
background tasks on rte_event_maintain() calls.

Signed-off-by: Mattias Rönnblom <mattias.ronnblom@

event/dsw: use maintenance facility

Set the RTE_EVENT_DEV_CAP_REQUIRES_MAINT flag, and perform DSW
background tasks on rte_event_maintain() calls.

Signed-off-by: Mattias Rönnblom <[email protected]>
Tested-by: Richard Eklycke <[email protected]>
Tested-by: Liron Himi <[email protected]>

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eventdev: hide event device related structures

Move rte_eventdev, rte_eventdev_data structures to eventdev_pmd.h.

Signed-off-by: Pavan Nikhilesh <[email protected]>
Acked-by: Harman Kalra <h

eventdev: hide event device related structures

Move rte_eventdev, rte_eventdev_data structures to eventdev_pmd.h.

Signed-off-by: Pavan Nikhilesh <[email protected]>
Acked-by: Harman Kalra <[email protected]>

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event/dsw: use C11 built-ins for atomics

Use C11-style GCC built-in functions for atomic operations.

Signed-off-by: Mattias Rönnblom <[email protected]>

event/dsw: avoid migration waves in large systems

DSW limits the rate of migrations on a per-port basis. Hence, as the
number of cores grows, so does the total migration capacity.

In high core-coun

event/dsw: avoid migration waves in large systems

DSW limits the rate of migrations on a per-port basis. Hence, as the
number of cores grows, so does the total migration capacity.

In high core-count systems, this allows for a situation where flows
are migrated to a lightly loaded port which recently already received
a number of new flows (from other ports). The processing load
generated by these new flows may not yet be reflected in the lightly
loaded port's load estimate. The result is that the previously lightly
loaded port is now overloaded.

This patch adds a rough estimate of the size of the inbound migrations
to a particular port, which can be factored into the migration logic,
avoiding the above problem.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: improve migration mechanism

Allowing moving multiple flows in one migration transaction, to
rebalance load more quickly.

Introduce a threshold to avoid migrating flows between ports with

event/dsw: improve migration mechanism

Allowing moving multiple flows in one migration transaction, to
rebalance load more quickly.

Introduce a threshold to avoid migrating flows between ports with very
similar load.

Simplify logic for selecting which flow to migrate. The aim is now to
move flows in such a way that the receiving port is as lightly-loaded
as possible (after receiving the flow), while still migrating enough
flows from the source port to reduce its load. This is essentially how
legacy strategy work as well, but the code is more readable.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: extend xstats

To allow visualization of migrations, track the number flow
immigrations in "port_<N>_immigrations". The "port_<N>_migrations"
retains legacy semantics, but is renamed "port

event/dsw: extend xstats

To allow visualization of migrations, track the number flow
immigrations in "port_<N>_immigrations". The "port_<N>_migrations"
retains legacy semantics, but is renamed "port_<N>_emigrations".

Expose the number of events currently undergoing processing
(i.e. pending releases) at a particular port.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: reduce max flows to speed up load balancing

Reduce the maximum number of DSW flows from 32k to 8k, to be able
rebalance load faster.

Signed-off-by: Mattias Rönnblom <mattias.ronnblom@eri

event/dsw: reduce max flows to speed up load balancing

Reduce the maximum number of DSW flows from 32k to 8k, to be able
rebalance load faster.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: use custom element size ring for control

Replace DSW's use of regular DPDK rings (and code for
packing/unpacking control messages into void pointers) with custom
size rings.

In addition

event/dsw: use custom element size ring for control

Replace DSW's use of regular DPDK rings (and code for
packing/unpacking control messages into void pointers) with custom
size rings.

In addition to cleaner code, this change allows DSW to support up to
the eventdev API's maximum of 255 ports by tweaking DSW_MAX_PORTS.

Signed-off-by: Mattias Rönnblom <[email protected]>
Reviewed-by: Honnappa Nagarahalli <[email protected]>

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event/dsw: implement xstats counters

The DSW event device now implements the 'xstats' interface and a
number of port- and device-level counters.

Signed-off-by: Mattias Rönnblom <mattias.ronnblom@er

event/dsw: implement xstats counters

The DSW event device now implements the 'xstats' interface and a
number of port- and device-level counters.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: sort events on dequeue

With this patch, the DSW event device will (optionally) sort the event
burst before giving it to the application. The sorting will primarily
be on queue id, and sec

event/dsw: sort events on dequeue

With this patch, the DSW event device will (optionally) sort the event
burst before giving it to the application. The sorting will primarily
be on queue id, and secondary on flow id.

The sorting is an attempt to optimize data and instruction cache usage
for the application, at the cost of additional event device overhead.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: add load balancing

The DSW event device will now attempt to migrate (move) flows between
ports in order to balance the load.

Signed-off-by: Mattias Rönnblom <[email protected]

event/dsw: add load balancing

The DSW event device will now attempt to migrate (move) flows between
ports in order to balance the load.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: add port load measurements

The DSW event device port now attempts to estimate its load (i.e. how
busy it is). This is required for load balancing to work (although
load balancing is not i

event/dsw: add port load measurements

The DSW event device port now attempts to estimate its load (i.e. how
busy it is). This is required for load balancing to work (although
load balancing is not included in this patch), and may also be useful
for debugging purposes.

Signed-off-by: Mattias Rönnblom <[email protected]>

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event/dsw: add event scheduling and device start/stop

With this patch, the DSW event device can be started and stopped,
and also supports scheduling events between ports.

Signed-off-by: Mattias Rön

event/dsw: add event scheduling and device start/stop

With this patch, the DSW event device can be started and stopped,
and also supports scheduling events between ports.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: Jerin Jacob <[email protected]>

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event/dsw: support linking/unlinking ports

Added support for linking and unlinking ports to queues in a DSW event
device.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: J

event/dsw: support linking/unlinking ports

Added support for linking and unlinking ports to queues in a DSW event
device.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: Jerin Jacob <[email protected]>

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event/dsw: add port configuration

Allow port setup and release in the DSW event device.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetw

event/dsw: add port configuration

Allow port setup and release in the DSW event device.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: Jerin Jacob <[email protected]>

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event/dsw: add device and queue configuration

Allow queue- and device-level configuration for and retrieval of
contextual information from a DSW event device.

Signed-off-by: Mattias Rönnblom <matti

event/dsw: add device and queue configuration

Allow queue- and device-level configuration for and retrieval of
contextual information from a DSW event device.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: Jerin Jacob <[email protected]>

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event/dsw: add device registration and build system

This patch contains the Meson and GNU Make build system extensions
required for the Distributed Event Device, and also the initialization
code for

event/dsw: add device registration and build system

This patch contains the Meson and GNU Make build system extensions
required for the Distributed Event Device, and also the initialization
code for the driver itself.

Signed-off-by: Mattias Rönnblom <[email protected]>
Acked-by: Jerin Jacob <[email protected]>

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