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Bluetooth: advmon offload MSFT interleave scanning integration 

When MSFT extension is supported, we don't have to interleave the scan
as we could just do allowlist scan.

Signed-off-by: Archie Pusaka <apusaka@chromium.org>
Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
master
Archie Pusaka 2021-01-22 16:36:16 +08:00 committed by Marcel Holtmann
parent 394566bf1e
commit 58ceb1e6d6
1 changed files with 11 additions and 9 deletions
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20
net/bluetooth/hci_request.c
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@ -404,13 +404,18 @@ static void cancel_interleave_scan(struct hci_dev *hdev)
*/
static bool __hci_update_interleaved_scan(struct hci_dev *hdev)
{
/* If there is at least one ADV monitors and one pending LE connection
* or one device to be scanned for, we should alternate between
* allowlist scan and one without any filters to save power.
/* Do interleaved scan only if all of the following are true:
* - There is at least one ADV monitor
* - At least one pending LE connection or one device to be scanned for
* - Monitor offloading is not supported
* If so, we should alternate between allowlist scan and one without
* any filters to save power.
*/
bool use_interleaving = hci_is_adv_monitoring(hdev) &&
!(list_empty(&hdev->pend_le_conns) &&
list_empty(&hdev->pend_le_reports));
list_empty(&hdev->pend_le_reports)) &&
hci_get_adv_monitor_offload_ext(hdev) ==
HCI_ADV_MONITOR_EXT_NONE;
bool is_interleaving = is_interleave_scanning(hdev);
if (use_interleaving && !is_interleaving) {
@ -899,14 +904,11 @@ static u8 update_white_list(struct hci_request *req)
/* Use the allowlist unless the following conditions are all true:
* - We are not currently suspending
* - There are 1 or more ADV monitors registered
* - There are 1 or more ADV monitors registered and it's not offloaded
* - Interleaved scanning is not currently using the allowlist
*
* Once the controller offloading of advertisement monitor is in place,
* the above condition should include the support of MSFT extension
* support.
*/
if (!idr_is_empty(&hdev->adv_monitors_idr) && !hdev->suspended &&
hci_get_adv_monitor_offload_ext(hdev) == HCI_ADV_MONITOR_EXT_NONE &&
hdev->interleave_scan_state != INTERLEAVE_SCAN_ALLOWLIST)
return 0x00;