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authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2019-06-03 13:48:42 +0300
committerMarcel Holtmann <marcel@holtmann.org>2019-07-06 16:38:18 +0300
commit1d0fac2c38edb25067e8f69195e2f76b67a2717d (patch)
treeae68e64fbf78fbbc62c10606d167a108f16f3ccc /net/bluetooth
parentc49a8682fc5d298d44e8d911f4fa14690ea9485e (diff)
downloadlinux-1d0fac2c38edb25067e8f69195e2f76b67a2717d.tar.xz
Bluetooth: Use controller sets when available
This makes use of controller sets when using Extended Advertising feature thus offloading the scheduling to the controller. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_conn.c2
-rw-r--r--net/bluetooth/hci_core.c3
-rw-r--r--net/bluetooth/hci_request.c40
-rw-r--r--net/bluetooth/hci_request.h2
4 files changed, 37 insertions, 10 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 17e5111daa11..ad5b0ac1f9ce 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -915,7 +915,7 @@ static void hci_req_directed_advertising(struct hci_request *req,
sizeof(cp), &cp);
}
- __hci_req_enable_ext_advertising(req);
+ __hci_req_enable_ext_advertising(req, 0x00);
} else {
struct hci_cp_le_set_adv_param cp;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ff9a755f4df3..b9585e7d9d2e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2827,7 +2827,7 @@ int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
memset(adv_instance->scan_rsp_data, 0,
sizeof(adv_instance->scan_rsp_data));
} else {
- if (hdev->adv_instance_cnt >= HCI_MAX_ADV_INSTANCES ||
+ if (hdev->adv_instance_cnt >= hdev->le_num_of_adv_sets ||
instance < 1 || instance > HCI_MAX_ADV_INSTANCES)
return -EOVERFLOW;
@@ -3195,6 +3195,7 @@ struct hci_dev *hci_alloc_dev(void)
hdev->le_min_key_size = SMP_MIN_ENC_KEY_SIZE;
hdev->le_tx_def_phys = HCI_LE_SET_PHY_1M;
hdev->le_rx_def_phys = HCI_LE_SET_PHY_1M;
+ hdev->le_num_of_adv_sets = HCI_MAX_ADV_INSTANCES;
hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index e9a95ed65491..621f1a97d803 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -1601,7 +1601,7 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
cp.own_addr_type = own_addr_type;
cp.channel_map = hdev->le_adv_channel_map;
cp.tx_power = 127;
- cp.handle = 0;
+ cp.handle = instance;
if (flags & MGMT_ADV_FLAG_SEC_2M) {
cp.primary_phy = HCI_ADV_PHY_1M;
@@ -1643,11 +1643,21 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
return 0;
}
-void __hci_req_enable_ext_advertising(struct hci_request *req)
+int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance)
{
+ struct hci_dev *hdev = req->hdev;
struct hci_cp_le_set_ext_adv_enable *cp;
struct hci_cp_ext_adv_set *adv_set;
u8 data[sizeof(*cp) + sizeof(*adv_set) * 1];
+ struct adv_info *adv_instance;
+
+ if (instance > 0) {
+ adv_instance = hci_find_adv_instance(hdev, instance);
+ if (!adv_instance)
+ return -EINVAL;
+ } else {
+ adv_instance = NULL;
+ }
cp = (void *) data;
adv_set = (void *) cp->data;
@@ -1659,11 +1669,23 @@ void __hci_req_enable_ext_advertising(struct hci_request *req)
memset(adv_set, 0, sizeof(*adv_set));
- adv_set->handle = 0;
+ adv_set->handle = instance;
+
+ /* Set duration per instance since controller is responsible for
+ * scheduling it.
+ */
+ if (adv_instance && adv_instance->duration) {
+ u16 duration = adv_instance->duration * MSEC_PER_SEC;
+
+ /* Time = N * 10 ms */
+ adv_set->duration = cpu_to_le16(duration / 10);
+ }
hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_ENABLE,
sizeof(*cp) + sizeof(*adv_set) * cp->num_of_sets,
data);
+
+ return 0;
}
int __hci_req_start_ext_adv(struct hci_request *req, u8 instance)
@@ -1679,7 +1701,7 @@ int __hci_req_start_ext_adv(struct hci_request *req, u8 instance)
return err;
__hci_req_update_scan_rsp_data(req, instance);
- __hci_req_enable_ext_advertising(req);
+ __hci_req_enable_ext_advertising(req, instance);
return 0;
}
@@ -1723,10 +1745,13 @@ int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
adv_instance->remaining_time =
adv_instance->remaining_time - timeout;
- hdev->adv_instance_timeout = timeout;
- queue_delayed_work(hdev->req_workqueue,
+ /* Only use work for scheduling instances with legacy advertising */
+ if (!ext_adv_capable(hdev)) {
+ hdev->adv_instance_timeout = timeout;
+ queue_delayed_work(hdev->req_workqueue,
&hdev->adv_instance_expire,
msecs_to_jiffies(timeout * 1000));
+ }
/* If we're just re-scheduling the same instance again then do not
* execute any HCI commands. This happens when a single instance is
@@ -2744,7 +2769,8 @@ static int powered_update_hci(struct hci_request *req, unsigned long opt)
if (!ext_adv_capable(hdev))
__hci_req_enable_advertising(req);
else if (!err)
- __hci_req_enable_ext_advertising(req);
+ __hci_req_enable_ext_advertising(req,
+ 0x00);
}
} else if (!list_empty(&hdev->adv_instances)) {
struct adv_info *adv_instance;
diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h
index 55b2050cc9ff..a7019fbeadd3 100644
--- a/net/bluetooth/hci_request.h
+++ b/net/bluetooth/hci_request.h
@@ -83,7 +83,7 @@ void hci_req_clear_adv_instance(struct hci_dev *hdev, struct sock *sk,
int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance);
int __hci_req_start_ext_adv(struct hci_request *req, u8 instance);
-void __hci_req_enable_ext_advertising(struct hci_request *req);
+int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance);
void __hci_req_clear_ext_adv_sets(struct hci_request *req);
int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
bool use_rpa, struct adv_info *adv_instance,