Commit 97adf875 authored by Vinayak Kariappa Chettimada's avatar Vinayak Kariappa Chettimada Committed by Carles Cufi
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Bluetooth: Controller: Flush pending Tx PDUs before PHY update 



Flush any pending Tx PDUs in the lower link layer before
enqueueing PHY_UPDATE_IND PDU with instant to ensure the
PDU is transmitted before the instant occurs.

Signed-off-by: default avatarVinayak Kariappa Chettimada <vich@nordicsemi.no>
parent ad1edf1c

subsys/bluetooth/controller/ll_sw/ull_conn.c

+11 −0
Original line number Diff line number Diff line
@@ -4029,6 +4029,17 @@ static inline void event_phy_upd_ind_prep(struct ll_conn *conn, 
		struct node_rx_pdu *rx;

		struct node_tx *tx;



		/* Delay until all pending Tx in LLL is acknowledged,

		 * conn->llcp_phy.pause_tx is true, new Tx PDUs will not be

		 * enqueued until we proceed to initiate PHY update.

		 * This is required to ensure PDU with instant can be

		 * transmitted before instant expires.

		 */

		if (memq_peek(conn->lll.memq_tx.head, conn->lll.memq_tx.tail,

			      NULL)) {

			return;

		}



#if defined(CONFIG_BT_CTLR_DATA_LENGTH)

		rx = ll_pdu_rx_alloc_peek(2);

#else /* !CONFIG_BT_CTLR_DATA_LENGTH */

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