Commit 0460c9fd authored by Ludvig Jordet's avatar Ludvig Jordet Committed by Fabio Baltieri
Browse files

Bluetooth: Mesh: Update Kconfig help about Mesh on System WQ 



This updates the help text for the Kconfig option BT_MESH_WORKQ_SYS to
take into account the change made in PR #84282 which causes the host to
no longer return -ENOBUFS. Since the mesh will now instead block the
work queue, a note has been added about a potential consequence of this.

Signed-off-by: default avatarLudvig Jordet <ludvig.jordet@nordicsemi.no>
parent 49018637

subsys/bluetooth/mesh/Kconfig

+6 −4
Original line number Diff line number Diff line
@@ -126,10 +126,12 @@ config BT_MESH_WORKQ_SYS 
	  refer to BT_MESH_ADV_STACK_SIZE for the recommended minimum.



	  When this option is enabled and the mesh tries to send a message,

	  and the host ran out the HCI command buffers controlled by

	  CONFIG_BT_BUF_CMD_TX_COUNT, the host returns -ENOBUFS immediately

	  and the mesh drops the message transmission. To mitigate this

	  issue, make sure to have sufficient number of HCI command buffers.

	  and the host ran out of the HCI command buffers controlled by

	  CONFIG_BT_BUF_CMD_TX_COUNT, the system work queue will be blocked

	  until an HCI command buffer has been freed. This may cause a deadlock

	  where the host cannot use the system workqueue to free the buffer

	  that the mesh is waiting for. To mitigate this issue, make sure to

	  have a sufficient number of HCI command buffers.

	  When this option is enabled, the latency of sending mesh messages

	  will be affected by other users on the system work queue, resulting in

	  reduced reliability for sending mesh messages.

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