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Bluetooth: controller: split: Make number of TX ctrl buffers configurable

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A single connections may take up to 4 buffers at the same time. Make
number of connections that support this worst-case number
configurable.

Signed-off-by: Wolfgang Puffitsch <wopu@demant.com>
This commit is contained in:
Wolfgang Puffitsch 2019-10-07 12:57:18 +02:00 • committed by Alberto Escolar
commit e108898270
2 changed files with 16 additions and 1 deletions
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7
subsys/bluetooth/controller/ll_sw/ull_conn.c
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@ -114,7 +114,12 @@ static inline int ctrl_rx(memq_link_t *link, struct node_rx_pdu **rx,
(CONFIG_BT_CTLR_TX_BUFFER_SIZE + \
BT_CTLR_USER_TX_BUFFER_OVERHEAD))
#define CONN_TX_CTRL_BUFFERS 2
/**
* One connection may take up to 4 TX buffers for procedures
* simultaneously, for example 2 for encryption, 1 for termination,
* and 1 one that is in flight and has not been returned to the pool
*/
#define CONN_TX_CTRL_BUFFERS (4 * CONFIG_BT_CTLR_LLCP_CONN)
#define CONN_TX_CTRL_BUF_SIZE MROUND(offsetof(struct node_tx, pdu) + \
offsetof(struct pdu_data, llctrl) + \
sizeof(struct pdu_data_llctrl))