diff options
| author | Holger Schurig <hs4233@mail.mn-solutions.de> | 2008-04-01 16:50:43 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-04-16 23:59:56 +0400 |
| commit | 7919b89c8276d657976d4d4d6b7cb58ea1aa08c3 (patch) | |
| tree | 31fc24e2f8b7d8eeee67347333e078591796d4b7 /drivers/net/wireless/libertas/defs.h | |
| parent | 98dd6a575928ed9c42130d208e6bfb0f7a914d5a (diff) | |
| download | linux-7919b89c8276d657976d4d4d6b7cb58ea1aa08c3.tar.xz | |
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/defs.h')
| -rw-r--r-- | drivers/net/wireless/libertas/defs.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h index 84e8de5e21da..d39520111062 100644 --- a/drivers/net/wireless/libertas/defs.h +++ b/drivers/net/wireless/libertas/defs.h @@ -177,8 +177,6 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in #define MRVDRV_CMD_UPLD_RDY 0x0008 #define MRVDRV_CARDEVENT 0x0010 -#define SBI_EVENT_CAUSE_SHIFT 3 - /** TxPD status */ /* Station firmware use TxPD status field to report final Tx transmit |