Bluetooth: Use LE buffers for LE traffic
Bluetooth chips may have separate buffers for LE traffic.
This patch add support to use LE buffers provided by the chip.
Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 47c6e93..3155ad5 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -776,6 +776,25 @@
mgmt_pin_code_neg_reply_complete(hdev->id, &rp->bdaddr,
rp->status);
}
+static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
+
+ BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
+ hdev->le_pkts = rp->le_max_pkt;
+
+ hdev->le_cnt = hdev->le_pkts;
+
+ BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
+
+ hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
+}
static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
@@ -1704,6 +1723,10 @@
hci_cc_pin_code_neg_reply(hdev, skb);
break;
+ case HCI_OP_LE_READ_BUFFER_SIZE:
+ hci_cc_le_read_buffer_size(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
@@ -1849,6 +1872,16 @@
hdev->acl_cnt += count;
if (hdev->acl_cnt > hdev->acl_pkts)
hdev->acl_cnt = hdev->acl_pkts;
+ } else if (conn->type == LE_LINK) {
+ if (hdev->le_pkts) {
+ hdev->le_cnt += count;
+ if (hdev->le_cnt > hdev->le_pkts)
+ hdev->le_cnt = hdev->le_pkts;
+ } else {
+ hdev->acl_cnt += count;
+ if (hdev->acl_cnt > hdev->acl_pkts)
+ hdev->acl_cnt = hdev->acl_pkts;
+ }
} else {
hdev->sco_cnt += count;
if (hdev->sco_cnt > hdev->sco_pkts)