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Bluetooth: Split HCI command & event buffers to two pools

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The HCI commands and events have slightly different requirements
(e.g. max sizes, or the fact that events don't need any user data) so
it makes sense to keep them separate. The total count is kept at 8 (2
+ 6) but the ACL_OUT count is modified to not exceed the event count
(to avoid inability of handling bursts of Number of Completed Packets
events). The ACL_IN count is also modified to keep these symmetric for
now.

Change-Id: Ia1915a596424425525b6df67e0ddce47a7f618f3
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2015-10-29 16:58:18 +02:00 • committed by Anas Nashif
commit 297f4f481f
2 changed files with 40 additions and 17 deletions
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35
net/bluetooth/Kconfig
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@ -55,24 +55,41 @@ config BLUETOOTH_DEBUG_HCI_CORE
This option enables debug support for Bluetooth HCI
core.
config BLUETOOTH_HCI_COUNT
int "Number of HCI buffers"
default 8
config BLUETOOTH_HCI_CMD_COUNT
int "Number of HCI command buffers"
default 2
range 2 64
help
Number of buffers available for HCI commands and events.
Number of buffers available for HCI commands.
config BLUETOOTH_HCI_SIZE
int "Size of HCI buffers"
config BLUETOOTH_HCI_CMD_SIZE
int "Size of HCI command buffers"
default 72
range 72 260
help
Maximum size of each HCI buffer.
Maximum size of each HCI command buffer.
config BLUETOOTH_HCI_EVT_COUNT
int "Number of HCI event buffers"
default 6
range 2 64
help
Number of buffers available for HCI events. This number should
ideally be at least as large as BLUETOOTH_ACL_OUT_COUNT to make
sure we've got enough buffers to handle bursts of Number of
Completed Packets HCI events.
config BLUETOOTH_HCI_EVT_SIZE
int "Size of HCI event buffers"
default 72
range 72 260
help
Maximum size of each HCI event buffer.
if BLUETOOTH_CONN
config BLUETOOTH_ACL_IN_COUNT
int "Number of incoming ACL data buffers"
default 7
default 5
range 1 16
help
Number of buffers available for incoming ACL data.
@ -88,7 +105,7 @@ config BLUETOOTH_ACL_IN_SIZE
config BLUETOOTH_ACL_OUT_COUNT
int "Number of incoming ACL data buffers"
default 7
default 5
range 1 16
help
Number of buffers available for incoming ACL data.