Hi Andrzej,
> This patch adds conn_info_min_age and conn_info_max_age parameters to
> debugfs which determine lifetime of connection information. Actual
> lifetime will be random value between min and max age.
>
> Default values for min and max age are 1000ms and 3000ms respectively.
>
> Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@xxxxxxxxx>
> ---
> include/net/bluetooth/hci_core.h | 6 ++++++
> net/bluetooth/hci_core.c | 7 +++++++
> 2 files changed, 13 insertions(+)
>
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index 211bad6..4623f45 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -145,6 +145,10 @@ struct oob_data {
> /* Default LE RPA expiry time, 15 minutes */
> #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
>
> +/* Default min/max age of connection information (1s/3s) */
> +#define DEFAULT_CONN_INFO_MIN_AGE 1000
> +#define DEFAULT_CONN_INFO_MAX_AGE 3000
> +
> struct amp_assoc {
> __u16 len;
> __u16 offset;
> @@ -200,6 +204,8 @@ struct hci_dev {
> __u16 le_conn_min_interval;
> __u16 le_conn_max_interval;
> __u16 discov_interleaved_timeout;
> + __u16 conn_info_min_age;
> + __u16 conn_info_max_age;
> __u8 ssp_debug_mode;
>
> __u16 devid_source;
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index d31f144..62ebcea 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -1754,6 +1754,11 @@ static int __hci_init(struct hci_dev *hdev)
> &blacklist_fops);
> debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
>
> + debugfs_create_u16("conn_info_min_age", 0644, hdev->debugfs,
> + &hdev->conn_info_min_age);
> + debugfs_create_u16("conn_info_max_age", 0644, hdev->debugfs,
> + &hdev->conn_info_max_age);
> +
I know this is dead simple, but I rather have this done similar to how we do the sniff_max_interval and sniff_min_interval. So that you can not set wrong values or bad ranges.
Regards
Marcel
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