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Bluetooth: prioritizing data over HCI

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This implement priority based scheduler using skbuffer priority set via
SO_PRIORITY socket option.

It introduces hci_chan_hash (list of HCI Channel/hci_chan) per connection,
each item in this list refer to a L2CAP connection and it is used to
queue the data for transmission.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Luiz Augusto von Dentz
2011-11-02 15:52:01 +02:00
committed by Gustavo F. Padovan
parent 3c32fa93e5
commit 73d80deb7b
6 changed files with 252 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
include/net/bluetooth/hci_core.h
View File

@@ -67,6 +67,12 @@ struct hci_conn_hash {
unsigned int le_num;
};
struct hci_chan_hash {
struct list_head list;
spinlock_t lock;
unsigned int num;
};
struct bdaddr_list {
struct list_head list;
bdaddr_t bdaddr;
@@ -287,6 +293,7 @@ struct hci_conn {
unsigned int sent;
struct sk_buff_head data_q;
struct hci_chan_hash chan_hash;
struct timer_list disc_timer;
struct timer_list idle_timer;
@@ -309,6 +316,14 @@ struct hci_conn {
void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
};
struct hci_chan {
struct list_head list;
struct hci_conn *conn;
struct sk_buff_head data_q;
unsigned int sent;
};
extern struct hci_proto *hci_proto[];
extern struct list_head hci_dev_list;
extern struct list_head hci_cb_list;
@@ -469,6 +484,28 @@ static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
return NULL;
}
static inline void hci_chan_hash_init(struct hci_conn *c)
{
struct hci_chan_hash *h = &c->chan_hash;
INIT_LIST_HEAD(&h->list);
spin_lock_init(&h->lock);
h->num = 0;
}
static inline void hci_chan_hash_add(struct hci_conn *c, struct hci_chan *chan)
{
struct hci_chan_hash *h = &c->chan_hash;
list_add(&chan->list, &h->list);
h->num++;
}
static inline void hci_chan_hash_del(struct hci_conn *c, struct hci_chan *chan)
{
struct hci_chan_hash *h = &c->chan_hash;
list_del(&chan->list);
h->num--;
}
void hci_acl_connect(struct hci_conn *conn);
void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
void hci_add_sco(struct hci_conn *conn, __u16 handle);
@@ -480,6 +517,10 @@ int hci_conn_del(struct hci_conn *conn);
void hci_conn_hash_flush(struct hci_dev *hdev);
void hci_conn_check_pending(struct hci_dev *hdev);
struct hci_chan *hci_chan_create(struct hci_conn *conn);
int hci_chan_del(struct hci_chan *chan);
void hci_chan_hash_flush(struct hci_conn *conn);
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
__u8 sec_level, __u8 auth_type);
int hci_conn_check_link_mode(struct hci_conn *conn);
@@ -849,7 +890,7 @@ int hci_register_notifier(struct notifier_block *nb);
int hci_unregister_notifier(struct notifier_block *nb);
int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);

1
include/net/bluetooth/l2cap.h
View File

@@ -451,6 +451,7 @@ struct l2cap_ops {
struct l2cap_conn {
struct hci_conn *hcon;
struct hci_chan *hchan;
bdaddr_t *dst;
bdaddr_t *src;