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Commit 3eff45ea authored by Gustavo Padovan's avatar Gustavo Padovan
Browse files

Bluetooth: convert tx_task to workqueue 



This should simplify Bluetooth core processing a lot.

Acked-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent c347b765

include/net/bluetooth/hci_core.h

+1 −1
Original line number Original line Diff line number Diff line
@@ -197,7 +197,7 @@ struct hci_dev { 




	struct work_struct	rx_work;

	struct work_struct	rx_work;

	struct work_struct	cmd_work;

	struct work_struct	cmd_work;

	struct tasklet_struct	tx_task;

	struct work_struct	tx_work;





	struct sk_buff_head	rx_q;

	struct sk_buff_head	rx_q;

	struct sk_buff_head	raw_q;

	struct sk_buff_head	raw_q;

net/bluetooth/hci_core.c

+9 −11
Original line number Original line Diff line number Diff line
@@ -58,7 +58,7 @@ int enable_hs; 




static void hci_rx_work(struct work_struct *work);

static void hci_rx_work(struct work_struct *work);

static void hci_cmd_work(struct work_struct *work);

static void hci_cmd_work(struct work_struct *work);

static void hci_tx_task(unsigned long arg);

static void hci_tx_work(struct work_struct *work);





static DEFINE_MUTEX(hci_task_lock);

static DEFINE_MUTEX(hci_task_lock);
@@ -547,7 +547,7 @@ int hci_dev_open(__u16 dev) 
		}

		}

	} else {

	} else {

		/* Init failed, cleanup */

		/* Init failed, cleanup */

		tasklet_kill(&hdev->tx_task);

		flush_work(&hdev->tx_work);

		flush_work(&hdev->cmd_work);

		flush_work(&hdev->cmd_work);

		flush_work(&hdev->rx_work);

		flush_work(&hdev->rx_work);
@@ -585,8 +585,8 @@ static int hci_dev_do_close(struct hci_dev *hdev) 
		return 0;

		return 0;

	}

	}





	/* Kill RX and TX tasks */

	/* Flush RX and TX works */

	tasklet_kill(&hdev->tx_task);

	flush_work(&hdev->tx_work);

	flush_work(&hdev->rx_work);

	flush_work(&hdev->rx_work);





	if (hdev->discov_timeout > 0) {

	if (hdev->discov_timeout > 0) {
@@ -672,7 +672,6 @@ int hci_dev_reset(__u16 dev) 
		return -ENODEV;

		return -ENODEV;





	hci_req_lock(hdev);

	hci_req_lock(hdev);

	tasklet_disable(&hdev->tx_task);





	if (!test_bit(HCI_UP, &hdev->flags))

	if (!test_bit(HCI_UP, &hdev->flags))

		goto done;

		goto done;
@@ -697,7 +696,6 @@ int hci_dev_reset(__u16 dev) 
					msecs_to_jiffies(HCI_INIT_TIMEOUT));

					msecs_to_jiffies(HCI_INIT_TIMEOUT));





done:

done:

	tasklet_enable(&hdev->tx_task);

	hci_req_unlock(hdev);

	hci_req_unlock(hdev);

	hci_dev_put(hdev);

	hci_dev_put(hdev);

	return ret;

	return ret;
@@ -1459,8 +1457,8 @@ int hci_register_dev(struct hci_dev *hdev) 




	INIT_WORK(&hdev->rx_work, hci_rx_work);

	INIT_WORK(&hdev->rx_work, hci_rx_work);

	INIT_WORK(&hdev->cmd_work, hci_cmd_work);

	INIT_WORK(&hdev->cmd_work, hci_cmd_work);

	INIT_WORK(&hdev->tx_work, hci_tx_work);





	tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);





	skb_queue_head_init(&hdev->rx_q);

	skb_queue_head_init(&hdev->rx_q);

	skb_queue_head_init(&hdev->cmd_q);

	skb_queue_head_init(&hdev->cmd_q);
@@ -2012,7 +2010,7 @@ void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags) 




	hci_queue_acl(conn, &chan->data_q, skb, flags);

	hci_queue_acl(conn, &chan->data_q, skb, flags);





	tasklet_schedule(&hdev->tx_task);

	queue_work(hdev->workqueue, &hdev->tx_work);

}

}

EXPORT_SYMBOL(hci_send_acl);

EXPORT_SYMBOL(hci_send_acl);
@@ -2035,7 +2033,7 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb) 
	bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;

	bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;





	skb_queue_tail(&conn->data_q, skb);

	skb_queue_tail(&conn->data_q, skb);

	tasklet_schedule(&hdev->tx_task);

	queue_work(hdev->workqueue, &hdev->tx_work);

}

}

EXPORT_SYMBOL(hci_send_sco);

EXPORT_SYMBOL(hci_send_sco);
@@ -2399,9 +2397,9 @@ static inline void hci_sched_le(struct hci_dev *hdev) 
		hci_prio_recalculate(hdev, LE_LINK);

		hci_prio_recalculate(hdev, LE_LINK);

}

}





static void hci_tx_task(unsigned long arg)

static void hci_tx_work(struct work_struct *work)

{

{

	struct hci_dev *hdev = (struct hci_dev *) arg;

	struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work);

	struct sk_buff *skb;

	struct sk_buff *skb;





	mutex_lock(&hci_task_lock);

	mutex_lock(&hci_task_lock);

net/bluetooth/hci_event.c

+1 −5
Original line number Original line Diff line number Diff line
@@ -2239,8 +2239,6 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s 
		return;

		return;

	}

	}





	tasklet_disable(&hdev->tx_task);



	for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {

	for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {

		struct hci_conn *conn;

		struct hci_conn *conn;

		__u16  handle, count;

		__u16  handle, count;
@@ -2274,9 +2272,7 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s 
		}

		}

	}

	}





	tasklet_schedule(&hdev->tx_task);

	queue_work(hdev->workqueue, &hdev->tx_work);



	tasklet_enable(&hdev->tx_task);

}

}





static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)

static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)

net/bluetooth/hci_sock.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -535,7 +535,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, 




		if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) {

		if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) {

			skb_queue_tail(&hdev->raw_q, skb);

			skb_queue_tail(&hdev->raw_q, skb);

			tasklet_schedule(&hdev->tx_task);

			queue_work(hdev->workqueue, &hdev->tx_work);

		} else {

		} else {

			skb_queue_tail(&hdev->cmd_q, skb);

			skb_queue_tail(&hdev->cmd_q, skb);

			queue_work(hdev->workqueue, &hdev->cmd_work);

			queue_work(hdev->workqueue, &hdev->cmd_work);
@@ -547,7 +547,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, 
		}

		}





		skb_queue_tail(&hdev->raw_q, skb);

		skb_queue_tail(&hdev->raw_q, skb);

		tasklet_schedule(&hdev->tx_task);

		queue_work(hdev->workqueue, &hdev->tx_work);

	}

	}





	err = len;

	err = len;