diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2023-01-03 17:56:44 +0100 |
|---|---|---|
| committer | Stefan Schmidt <stefan@datenfreihafen.org> | 2023-01-03 19:48:43 +0100 |
| commit | 57588c71177f0bfc08509c2c3a9bfe32850c0786 (patch) | |
| tree | d381093fc255c71da0f2acddcd0eb20dd0c8a9f4 /net/mac802154/ieee802154_i.h | |
| parent | dd18096256c89612e3eb858de748c29d10e8f3e7 (diff) | |
mac802154: Handle passive scanning
Implement the core hooks in order to provide the softMAC layer support
for passive scans. Scans are requested by the user and can be aborted.
Changing channels manually is prohibited during scans.
The implementation uses a workqueue triggered at a certain interval
depending on the symbol duration for the current channel and the
duration order provided. More advanced drivers with internal scheduling
capabilities might require additional care but there is none mainline
yet.
Received beacons during a passive scan are processed in a work queue and
their result forwarded to the upper layer.
Active scanning is not supported yet.
Co-developed-by: David Girault <david.girault@qorvo.com>
Signed-off-by: David Girault <david.girault@qorvo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20230103165644.432209-7-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Diffstat (limited to 'net/mac802154/ieee802154_i.h')
| -rw-r--r-- | net/mac802154/ieee802154_i.h | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/net/mac802154/ieee802154_i.h b/net/mac802154/ieee802154_i.h index aeadee543a9c..0e4db967bd1d 100644 --- a/net/mac802154/ieee802154_i.h +++ b/net/mac802154/ieee802154_i.h @@ -21,6 +21,10 @@ #include "llsec.h" +enum ieee802154_ongoing { + IEEE802154_IS_SCANNING = BIT(0), +}; + /* mac802154 device private data */ struct ieee802154_local { struct ieee802154_hw hw; @@ -43,15 +47,26 @@ struct ieee802154_local { struct list_head interfaces; struct mutex iflist_mtx; - /* This one is used for scanning and other jobs not to be interfered - * with serial driver. - */ + /* Data related workqueue */ struct workqueue_struct *workqueue; + /* MAC commands related workqueue */ + struct workqueue_struct *mac_wq; struct hrtimer ifs_timer; + /* Scanning */ + u8 scan_page; + u8 scan_channel; + struct cfg802154_scan_request __rcu *scan_req; + struct delayed_work scan_work; + + /* Asynchronous tasks */ + struct list_head rx_beacon_list; + struct work_struct rx_beacon_work; + bool started; bool suspended; + unsigned long ongoing; struct tasklet_struct tasklet; struct sk_buff_head skb_queue; @@ -226,6 +241,22 @@ void mac802154_unlock_table(struct net_device *dev); int mac802154_wpan_update_llsec(struct net_device *dev); +/* PAN management handling */ +void mac802154_scan_worker(struct work_struct *work); +int mac802154_trigger_scan_locked(struct ieee802154_sub_if_data *sdata, + struct cfg802154_scan_request *request); +int mac802154_abort_scan_locked(struct ieee802154_local *local, + struct ieee802154_sub_if_data *sdata); +int mac802154_process_beacon(struct ieee802154_local *local, + struct sk_buff *skb, + u8 page, u8 channel); +void mac802154_rx_beacon_worker(struct work_struct *work); + +static inline bool mac802154_is_scanning(struct ieee802154_local *local) +{ + return test_bit(IEEE802154_IS_SCANNING, &local->ongoing); +} + /* interface handling */ int ieee802154_iface_init(void); void ieee802154_iface_exit(void); |