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doc: fix runtime options in DLB2 guide

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Convert to PCI "--allow" devarg format.
The documentation was previously using the "--vdev" form, which cannot
be used with the DLB2 PF PMD.

Fixes: f3cad285bb ("event/dlb2: add infos get and configure")
Fixes: f7cc194b0f ("event/dlb2: add enqueue and its burst variants")
Fixes: a2e4f1f5e7 ("event/dlb2: add dequeue and its burst variants")
Fixes: 95aa7101cd ("doc: add some features to DLB2 guide")
Cc: stable@dpdk.org

Signed-off-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
This commit is contained in:
Timothy McDaniel 2021-05-21 11:11:35 +02:00 committed by Thomas Monjalon
parent 0e94408f00
commit 9e35ae0700
1 changed files with 10 additions and 10 deletions
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20
doc/guides/eventdevs/dlb2.rst
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@ -152,19 +152,19 @@ These pools' sizes are controlled by the nb_events_limit field in struct
rte_event_dev_config. The load-balanced pool is sized to contain
nb_events_limit credits, and the directed pool is sized to contain
nb_events_limit/4 credits. The directed pool size can be overridden with the
num_dir_credits vdev argument, like so:
num_dir_credits devargs argument, like so:
.. code-block:: console
--vdev=dlb2_event,num_dir_credits=<value>
--allow ea:00.0,num_dir_credits=<value>
This can be used if the default allocation is too low or too high for the
specific application needs. The PMD also supports a vdev arg that limits the
specific application needs. The PMD also supports a devarg that limits the
max_num_events reported by rte_event_dev_info_get():
.. code-block:: console
--vdev=dlb2_event,max_num_events=<value>
--allow ea:00.0,max_num_events=<value>
By default, max_num_events is reported as the total available load-balanced
credits. If multiple DLB-based applications are being used, it may be desirable
@ -315,11 +315,11 @@ buffer space (e.g. if not all queues are used, or aren't used for atomic
scheduling).
The PMD provides a dev arg to override the default per-queue allocation. To
increase a vdev's per-queue atomic-inflight allocation to (for example) 64:
increase per-queue atomic-inflight allocation to (for example) 64:
.. code-block:: console
--vdev=dlb2_event,atm_inflights=64
--allow ea:00.0,atm_inflights=64
QID Depth Threshold
~~~~~~~~~~~~~~~~~~~
@ -342,9 +342,9 @@ shown below.
.. code-block:: console
--vdev=dlb2_event,qid_depth_thresh=all:<threshold_value>
--vdev=dlb2_event,qid_depth_thresh=qidA-qidB:<threshold_value>
--vdev=dlb2_event,qid_depth_thresh=qid:<threshold_value>
--allow ea:00.0,qid_depth_thresh=all:<threshold_value>
--allow ea:00.0,qid_depth_thresh=qidA-qidB:<threshold_value>
--allow ea:00.0,qid_depth_thresh=qid:<threshold_value>
Class of service
~~~~~~~~~~~~~~~~
@ -366,4 +366,4 @@ Class of service can be specified in the devargs, as follows
.. code-block:: console
--vdev=dlb2_event,cos=<0..4>
--allow ea:00.0,cos=<0..4>