diff options
| author | Holger Schurig <hs4233@mail.mn-solutions.de> | 2008-04-01 14:50:43 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-04-16 15:59:56 -0400 |
| commit | 7919b89c8276d657976d4d4d6b7cb58ea1aa08c3 (patch) | |
| tree | 31fc24e2f8b7d8eeee67347333e078591796d4b7 /drivers/net/wireless/libertas/if_usb.h | |
| parent | 98dd6a575928ed9c42130d208e6bfb0f7a914d5a (diff) | |
libertas: convert libertas driver to use an event/cmdresp queue
This patch (co-developed by Dan Williams and Holger Schurig) uses a kfifo
object for events and a swapping buffer scheme for the command response to
preserve the zero-copy semantics of the CF driver and keep memory usage low.
The main thread should only ever touch the buffer indexed by priv->resp_idx,
while the interface code is free to write to the second buffer, then swap
priv->resp_idx under the driver spinlock. The firmware specs only permit
one in-flight command, so there will only ever be one command response to
process at a time.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas/if_usb.h')
| -rw-r--r-- | drivers/net/wireless/libertas/if_usb.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/wireless/libertas/if_usb.h b/drivers/net/wireless/libertas/if_usb.h index e4829a391eb..5771a83a43f 100644 --- a/drivers/net/wireless/libertas/if_usb.h +++ b/drivers/net/wireless/libertas/if_usb.h @@ -46,8 +46,6 @@ struct if_usb_card { struct lbs_private *priv; struct sk_buff *rx_skb; - uint32_t usb_event_cause; - uint8_t usb_int_cause; uint8_t ep_in; uint8_t ep_out; |