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From: Howard Chung <howardchung@google.com>
To: linux-bluetooth@vger.kernel.org, marcel@holtmann.org,
	luiz.dentz@gmail.com
Cc: mmandlik@chromium.orgi, mcchou@chromium.org, alainm@chromium.org,
	Howard Chung <howardchung@google.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Johan Hedberg <johan.hedberg@gmail.com>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH v5 4/4] Bluetooth: Add toggle to switch off interleave scan
Date: Wed, 23 Sep 2020 17:22:32 +0800	[thread overview]
Message-ID: <20200923172129.v5.4.I756c1fecc03bcc0cd94400b4992cd7e743f4b3e2@changeid> (raw)
In-Reply-To: <20200923172129.v5.1.Ib75f58e90c477f9b82c5598f00c59f0e95a1a352@changeid>

This patch add a configurable parameter to switch off the interleave
scan feature.

Signed-off-by: Howard Chung <howardchung@google.com>
Reviewed-by: Alain Michaud <alainm@chromium.org>
---

(no changes since v4)

Changes in v4:
- Set EnableAdvMonInterleaveScan default to Disable
- Fix 80 chars limit in mgmt_config.c

 include/net/bluetooth/hci_core.h | 1 +
 net/bluetooth/hci_core.c         | 1 +
 net/bluetooth/hci_request.c      | 3 ++-
 net/bluetooth/mgmt_config.c      | 5 +++++
 4 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index cfede18709d8f..b0225b80152cc 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -363,6 +363,7 @@ struct hci_dev {
 	__u32		clock;
 	__u16		advmon_allowlist_duration;
 	__u16		advmon_no_filter_duration;
+	__u16		enable_advmon_interleave_scan;
 
 	__u16		devid_source;
 	__u16		devid_vendor;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 6c8850149265a..d5769ae682893 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3595,6 +3595,7 @@ struct hci_dev *hci_alloc_dev(void)
 	/* The default values will be chosen in the future */
 	hdev->advmon_allowlist_duration = 300;
 	hdev->advmon_no_filter_duration = 500;
+	hdev->enable_advmon_interleave_scan = 0x0000;	/* Default to disable */
 
 	hdev->sniff_max_interval = 800;
 	hdev->sniff_min_interval = 80;
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 4048c82d4257f..23381f263678b 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -1057,7 +1057,8 @@ void hci_req_add_le_passive_scan(struct hci_request *req)
 				      &own_addr_type))
 		return;
 
-	if (__hci_update_interleaved_scan(hdev))
+	if (hdev->enable_advmon_interleave_scan &&
+	    __hci_update_interleaved_scan(hdev))
 		return;
 
 	/* Adding or removing entries from the white list must
diff --git a/net/bluetooth/mgmt_config.c b/net/bluetooth/mgmt_config.c
index 2d3ad288c78ac..34585ab4680b5 100644
--- a/net/bluetooth/mgmt_config.c
+++ b/net/bluetooth/mgmt_config.c
@@ -69,6 +69,7 @@ int read_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 						def_le_autoconnect_timeout),
 		HDEV_PARAM_U16(0x001d, advmon_allowlist_duration),
 		HDEV_PARAM_U16(0x001e, advmon_no_filter_duration),
+		HDEV_PARAM_U16(0x001f, enable_advmon_interleave_scan),
 	};
 	struct mgmt_rp_read_def_system_config *rp = (void *)params;
 
@@ -142,6 +143,7 @@ int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 		case 0x001b:
 		case 0x001d:
 		case 0x001e:
+		case 0x001f:
 			if (len != sizeof(u16)) {
 				bt_dev_warn(hdev, "invalid length %d, exp %zu for type %d",
 					    len, sizeof(u16), type);
@@ -261,6 +263,9 @@ int set_def_system_config(struct sock *sk, struct hci_dev *hdev, void *data,
 		case 0x0001e:
 			hdev->advmon_no_filter_duration = TLV_GET_LE16(buffer);
 			break;
+		case 0x0001f:
+			hdev->enable_advmon_interleave_scan = TLV_GET_LE16(buffer);
+			break;
 		default:
 			bt_dev_warn(hdev, "unsupported parameter %u", type);
 			break;
-- 
2.28.0.681.g6f77f65b4e-goog


  parent reply	other threads:[~2020-09-23  9:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-23  9:22 [PATCH v5 1/4] Bluetooth: Interleave with allowlist scan Howard Chung
2020-09-23  9:22 ` [PATCH v5 2/4] Bluetooth: Handle system suspend resume case Howard Chung
2020-09-23  9:22 ` [PATCH v5 3/4] Bluetooth: Handle active scan case Howard Chung
2020-09-23  9:22 ` Howard Chung [this message]
2020-09-25 17:36   ` [PATCH v5 4/4] Bluetooth: Add toggle to switch off interleave scan Marcel Holtmann

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