diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2008-10-22 13:28:43 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-10-31 19:00:52 -0400 |
| commit | b139a10a0aaf3c8041af348c2268d59e1610dc83 (patch) | |
| tree | 2229616b5de61af9408c8ed60478b692327c9697 /drivers/net/wireless/ath9k/ath9k.h | |
| parent | d9d2925713d92bbe33b2edff3d7de1ce5646ab54 (diff) | |
ath9k: remove pointless sc_txintrperiod and spin_lock_bh on tx prepare
sc_txintrperiod is currently set to 0 and never updated. We won't
be using this, if anything we will consider using TX interrupt
mitigation but that is different and not yet tested. So remove
sc_txintrperiod and the pointless spin_lock_bh() on tx prepare.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k/ath9k.h')
| -rw-r--r-- | drivers/net/wireless/ath9k/ath9k.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h index accace5f7ef..a6063dea0fa 100644 --- a/drivers/net/wireless/ath9k/ath9k.h +++ b/drivers/net/wireless/ath9k/ath9k.h @@ -138,6 +138,19 @@ struct ath_desc { #define ATH9K_TXDESC_NOACK 0x0002 #define ATH9K_TXDESC_RTSENA 0x0004 #define ATH9K_TXDESC_CTSENA 0x0008 +/* ATH9K_TXDESC_INTREQ forces a tx interrupt to be generated for + * the descriptor its marked on. We take a tx interrupt to reap + * descriptors when the h/w hits an EOL condition or + * when the descriptor is specifically marked to generate + * an interrupt with this flag. Descriptors should be + * marked periodically to insure timely replenishing of the + * supply needed for sending frames. Defering interrupts + * reduces system load and potentially allows more concurrent + * work to be done but if done to aggressively can cause + * senders to backup. When the hardware queue is left too + * large rate control information may also be too out of + * date. An Alternative for this is TX interrupt mitigation + * but this needs more testing. */ #define ATH9K_TXDESC_INTREQ 0x0010 #define ATH9K_TXDESC_VEOL 0x0020 #define ATH9K_TXDESC_EXT_ONLY 0x0040 |