[v3,1/4] event/dlb2: remove references to deferred scheduling
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Commit Message
From: Timothy McDaniel <timothy.mcdaniel@intel.com>
Deferred scheduling is a DLB v1.0 feature, and is not valid for
DLB v2.0 or v2.5.
Fixes: bc62748bd7d4 ("event/dlb2: add private data structures and constants")
Fixes: a2e4f1f5e79f ("event/dlb2: add dequeue and its burst variants")
Cc: stable@dpdk.org
Signed-off-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
---
doc/guides/eventdevs/dlb2.rst | 21 ---------------------
drivers/event/dlb2/dlb2_priv.h | 3 ---
2 files changed, 24 deletions(-)
@@ -293,27 +293,6 @@ The PMD does not support the following configuration sequences:
This sequence is not supported because the event device must be reconfigured
before its ports or queues can be.
-Deferred Scheduling
-~~~~~~~~~~~~~~~~~~~
-
-The DLB PMD's default behavior for managing a CQ is to "pop" the CQ once per
-dequeued event before returning from rte_event_dequeue_burst(). This frees the
-corresponding entries in the CQ, which enables the DLB to schedule more events
-to it.
-
-To support applications seeking finer-grained scheduling control -- for example
-deferring scheduling to get the best possible priority scheduling and
-load-balancing -- the PMD supports a deferred scheduling mode. In this mode,
-the CQ entry is not popped until the *subsequent* rte_event_dequeue_burst()
-call. This mode only applies to load-balanced event ports with dequeue depth of
-1.
-
-To enable deferred scheduling, use the defer_sched vdev argument like so:
-
- .. code-block:: console
-
- --vdev=dlb2_event,defer_sched=on
-
Atomic Inflights Allocation
~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -32,7 +32,6 @@
#define DLB2_MAX_NUM_EVENTS "max_num_events"
#define DLB2_NUM_DIR_CREDITS "num_dir_credits"
#define DEV_ID_ARG "dev_id"
-#define DLB2_DEFER_SCHED_ARG "defer_sched"
#define DLB2_QID_DEPTH_THRESH_ARG "qid_depth_thresh"
#define DLB2_COS_ARG "cos"
#define DLB2_POLL_INTERVAL_ARG "poll_interval"
@@ -585,7 +584,6 @@ struct dlb2_eventdev {
uint16_t num_dir_ports; /* total num of dir ports requested */
bool umwait_allowed;
bool global_dequeue_wait; /* Not using per dequeue wait if true */
- bool defer_sched;
enum dlb2_cq_poll_modes poll_mode;
int poll_interval;
int sw_credit_quanta;
@@ -620,7 +618,6 @@ struct dlb2_devargs {
int max_num_events;
int num_dir_credits_override;
int dev_id;
- int defer_sched;
struct dlb2_qid_depth_thresholds qid_depth_thresholds;
enum dlb2_cos cos_id;
int poll_interval;