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Bluetooth: Controller: Reduce successive ticker_job() on Extended Scan

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Reduce number of successive calls to ticker_job() by
disabling mayflies in the ULL_HIGH priority, enqueue
ticker_yield_abs() and ticker_start() before re-enabling
so that single ticker_job() handles both yield and start.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2023-03-26 21:38:42 +05:30 • committed by Carles Cufí
commit 02b1c76820
1 changed files with 14 additions and 0 deletions
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14
subsys/bluetooth/controller/ll_sw/ull_scan_aux.c
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@ -682,6 +682,13 @@ void ull_scan_aux_setup(memq_link_t *link, struct node_rx_hdr *rx)
ticks_aux_offset = HAL_TICKER_US_TO_TICKS(aux_offset_us);
#if (CONFIG_BT_CTLR_ULL_HIGH_PRIO == CONFIG_BT_CTLR_ULL_LOW_PRIO)
/* disable ticker job, in order to chain yield and start to reduce
* CPU use by reducing successive calls to ticker_job().
*/
mayfly_enable(TICKER_USER_ID_ULL_HIGH, TICKER_USER_ID_ULL_LOW, 0);
#endif
/* Yield the primary scan window or auxiliary or periodic sync event
* in ticker.
*/
@ -714,6 +721,13 @@ void ull_scan_aux_setup(memq_link_t *link, struct node_rx_hdr *rx)
((ticker_status == TICKER_STATUS_FAILURE) &&
IS_ENABLED(CONFIG_BT_TICKER_LOW_LAT)));
#if (CONFIG_BT_CTLR_ULL_HIGH_PRIO == CONFIG_BT_CTLR_ULL_LOW_PRIO)
/* enable ticker job, queued ticker operation will be handled
* thereafter.
*/
mayfly_enable(TICKER_USER_ID_ULL_HIGH, TICKER_USER_ID_ULL_LOW, 1);
#endif
return;
ull_scan_aux_rx_flush: