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b43: Allow PIO mode to be selected at module load

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If userencounter the "Fatal DMA Problem" with a BCM43XX device, and
still wish to use b43 as the driver, their only option is to rebuild
the kernel with CONFIG_B43_FORCE_PIO. This patch removes this option and
allows PIO mode to be selected with a load-time parameter for the module.
Note that the configuration variable CONFIG_B43_PIO is also removed.

Once the DMA problem with the BCM4312 devices is solved, this patch will
likely be reverted.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: John Daiker <daikerjohn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger
2009-12-10 17:35:01 -06:00
committed by John W. Linville
parent 7dc6a7a763
commit b02914af4d
6 changed files with 8 additions and 75 deletions
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40
drivers/net/wireless/b43/pio.h
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@@ -55,8 +55,6 @@
#define B43_PIO_MAX_NR_TXPACKETS 32
#ifdef CONFIG_B43_PIO
struct b43_pio_txpacket {
/* Pointer to the TX queue we belong to. */
struct b43_pio_txqueue *queue;
@@ -169,42 +167,4 @@ void b43_pio_rx(struct b43_pio_rxqueue *q);
void b43_pio_tx_suspend(struct b43_wldev *dev);
void b43_pio_tx_resume(struct b43_wldev *dev);
#else /* CONFIG_B43_PIO */
static inline int b43_pio_init(struct b43_wldev *dev)
{
return 0;
}
static inline void b43_pio_free(struct b43_wldev *dev)
{
}
static inline void b43_pio_stop(struct b43_wldev *dev)
{
}
static inline int b43_pio_tx(struct b43_wldev *dev,
struct sk_buff *skb)
{
return 0;
}
static inline void b43_pio_handle_txstatus(struct b43_wldev *dev,
const struct b43_txstatus *status)
{
}
static inline void b43_pio_get_tx_stats(struct b43_wldev *dev,
struct ieee80211_tx_queue_stats *stats)
{
}
static inline void b43_pio_rx(struct b43_pio_rxqueue *q)
{
}
static inline void b43_pio_tx_suspend(struct b43_wldev *dev)
{
}
static inline void b43_pio_tx_resume(struct b43_wldev *dev)
{
}
#endif /* CONFIG_B43_PIO */
#endif /* B43_PIO_H_ */