From ea3f1865f33bd328bf043f47492f401a42de5edb Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Sun, 14 Aug 2005 19:08:40 -0700 Subject: [PATCH] hostap: Remove experimental PCI bus master/DMA code PCI version of Prism2.5/3 has undocumented DMA support for TX/RX data, but this seems to have some hardware bugs that prevent it from being used properly for TX. RX side could possibly be made to work reliably. Even though DMA support would be very useful for saving host CPU (from about 40% to 5-10% when operating at maximum throughput), it seems to be best to just remove this code finally. The implementation has always been commented out by default and has received very limited testing. The code may have already been broken number of times and I don't have much interested in trying to verify whether it works or not. Getting this out makes it easier to maintain the driver and allows some cleanups that have been partly postponed because of this experimental bus master/DMA code. Signed-off-by: Jouni Malinen Signed-off-by: Jeff Garzik --- drivers/net/wireless/hostap/hostap_ioctl.c | 24 ------------------------ 1 file changed, 24 deletions(-) (limited to 'drivers/net/wireless/hostap/hostap_ioctl.c') diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index cfe127a..267f68b 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -2239,14 +2239,6 @@ static const struct iw_priv_args prism2_priv[] = { IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_decrypt" }, { PRISM2_PARAM_HOST_DECRYPT, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_decrypt" }, - { PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "busmaster_rx" }, - { PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX, - 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbusmaster_rx" }, - { PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "busmaster_tx" }, - { PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX, - 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbusmaster_tx" }, #ifndef PRISM2_NO_STATION_MODES { PRISM2_PARAM_HOST_ROAMING, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_roaming" }, @@ -2495,14 +2487,6 @@ static int prism2_ioctl_priv_prism2_param(struct net_device *dev, ret = -EINVAL; break; - case PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX: - local->bus_master_threshold_rx = value; - break; - - case PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX: - local->bus_master_threshold_tx = value; - break; - #ifndef PRISM2_NO_STATION_MODES case PRISM2_PARAM_HOST_ROAMING: if (value < 0 || value > 2) { @@ -2799,14 +2783,6 @@ static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev, *param = local->host_decrypt; break; - case PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX: - *param = local->bus_master_threshold_rx; - break; - - case PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX: - *param = local->bus_master_threshold_tx; - break; - case PRISM2_PARAM_HOST_ROAMING: *param = local->host_roaming; break; -- cgit v1.1