diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2011-12-22 00:47:59 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-01-04 19:30:43 (GMT) |
| commit | 5d07a3d62f63f3a9ce769c37108f8411c014903e (patch) | |
| tree | 8545015a8ee333adad1a1f98dc1fbd0c05025539 /drivers/net/wireless/b43legacy/b43legacy.h | |
| parent | 9bd2857188d920f358cfb740fc6f88e1a17a837e (diff) | |
| download | linux-5d07a3d62f63f3a9ce769c37108f8411c014903e.tar.xz | |
b43legacy: Avoid packet losses in the dma worker code
This patch addresses a bug in the dma worker code that keeps draining
packets even when the hardware queues are full. In such cases packets
can not be passed down to the device and are erroneusly dropped by the
code. It is based on commit bad6919469662b7c92bc6353642aaaa777b36bac,
which fixes the same problem in b43.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43legacy/b43legacy.h')
| -rw-r--r-- | drivers/net/wireless/b43legacy/b43legacy.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h index 1d4fc9d..98e3d44 100644 --- a/drivers/net/wireless/b43legacy/b43legacy.h +++ b/drivers/net/wireless/b43legacy/b43legacy.h @@ -560,8 +560,16 @@ struct b43legacy_key { u8 algorithm; }; +#define B43legacy_QOS_QUEUE_NUM 4 + struct b43legacy_wldev; +/* QOS parameters for a queue. */ +struct b43legacy_qos_params { + /* The QOS parameters */ + struct ieee80211_tx_queue_params p; +}; + /* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */ struct b43legacy_wl { /* Pointer to the active wireless device on this chip */ @@ -611,6 +619,18 @@ struct b43legacy_wl { bool beacon1_uploaded; bool beacon_templates_virgin; /* Never wrote the templates? */ struct work_struct beacon_update_trigger; + /* The current QOS parameters for the 4 queues. */ + struct b43legacy_qos_params qos_params[B43legacy_QOS_QUEUE_NUM]; + + /* Packet transmit work */ + struct work_struct tx_work; + + /* Queue of packets to be transmitted. */ + struct sk_buff_head tx_queue[B43legacy_QOS_QUEUE_NUM]; + + /* Flag that implement the queues stopping. */ + bool tx_queue_stopped[B43legacy_QOS_QUEUE_NUM]; + }; /* Pointers to the firmware data and meta information about it. */ |