From: Archie Pusaka <apusaka@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Reviewed-by: Miao-chen Chou <mcchou@xxxxxxxxxxxx>
---
Changes in v6:
* New patch "advmon offload MSFT interleave scanning integration"
net/bluetooth/hci_request.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 5aa7bd5030a2..d29a44d77b4e 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -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;
--
2.30.0.280.ga3ce27912f-goog
