6 Commits

Author SHA1 Message Date
Pavan Nikhilesh
84f4c73f7d examples/eventdev: probe max events
Some eventdevs support configuring max events to be -1 (open system).
Check eventdev and event port configuration with eventdev info before
configuring them.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2019-03-15 06:46:50 +01:00
Pavan Nikhilesh
085edac2ca examples/eventdev_pipeline: support Tx adapter
Redo the worker pipelines and offload transmission to service cores
seamlessly through Tx adapter.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Reviewed-by: Nikhil Rao <nikhil.rao@intel.com>
Tested-by: Nikhil Rao <nikhil.rao@intel.com>
2018-10-01 16:52:47 +02:00
Thomas Monjalon
d9a42a69fe ethdev: deprecate port count function
Some DPDK applications wrongly assume these requirements:
    - no hotplug, i.e. ports are never detached
    - all allocated ports are available to the application

Such application iterates over ports by its own mean.
The most common pattern is to request the port count and
assume ports with index in the range [0..count[ can be used.

In order to fix this common mistake in all external applications,
the function rte_eth_dev_count is deprecated, while introducing
the new functions rte_eth_dev_count_avail and rte_eth_dev_count_total.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2018-04-18 00:48:41 +02:00
Thomas Monjalon
8728ccf376 fix ethdev ports enumeration
Some DPDK applications wrongly assume these requirements:
    - no hotplug, i.e. ports are never detached
    - all allocated ports are available to the application

Such application iterates over ports by its own mean.
The most common pattern is to request the port count and
assume ports with index in the range [0..count[ can be used.

There are three consequences when using such wrong design:
    - new ports having an index higher than the port count won't be seen
    - old ports being detached (RTE_ETH_DEV_UNUSED) can be seen as ghosts
    - failsafe sub-devices (RTE_ETH_DEV_DEFERRED) will be seen by the application

Such mistake will be less common with growing hotplug awareness.
All applications and examples inside this repository - except testpmd -
must be fixed to use the iterator RTE_ETH_FOREACH_DEV.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2018-04-18 00:25:27 +02:00
Thomas Monjalon
785482203f examples/eventdev: fix build with GCC < 5
Some errors were seen with GCC 4.8 and 4.9.
It looks to be a bug fixed in GCC 5.

examples/eventdev_pipeline/pipeline_worker_generic.c:474:4: error:
missing initializer for field 'queue_id' of 'struct <anonymous>'

examples/eventdev_pipeline/pipeline_worker_generic.c:475:3: error:
missing initializer for field 'priority' of 'struct <anonymous>'

examples/eventdev_pipeline/pipeline_worker_tx.c:630:2: error:
missing initializer for field 'queue_id' of 'struct <anonymous>'

The workaround is to not use initializer statement,
but to use memset and standard assignment.

Fixes: 84dde5de10a2 ("examples/eventdev: support Rx adapter")
Fixes: fa8054c8c889 ("examples/eventdev: add thread safe Tx worker pipeline")

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-01-21 23:40:50 +01:00
Pavan Nikhilesh
6d239dd529 examples/eventdev: rename example
Rename eventdev_pipeline_sw_pmd to eventdev_pipeline as it is no longer
specific underlying event device.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2018-01-19 16:09:56 +01:00