diff options
| author | David S. Miller <davem@davemloft.net> | 2009-11-24 15:01:29 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-24 15:01:29 -0800 |
| commit | 4ba3eb034fb6fd1990ccc5a6d71d5abcda37b905 (patch) | |
| tree | 0789ba36d96dba330416a1e6a9a68e891a78802a /drivers/net/wireless/b43/dma.h | |
| parent | 35700212b45ea9f98fa682cfc1bc1a67c9ccc34b (diff) | |
| parent | 18b6c9a2213d3b6e0212e8b225abf95f7564206a (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Diffstat (limited to 'drivers/net/wireless/b43/dma.h')
| -rw-r--r-- | drivers/net/wireless/b43/dma.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h index f0b0838fb5b..e607b392314 100644 --- a/drivers/net/wireless/b43/dma.h +++ b/drivers/net/wireless/b43/dma.h @@ -1,7 +1,7 @@ #ifndef B43_DMA_H_ #define B43_DMA_H_ -#include <linux/ieee80211.h> +#include <linux/err.h> #include "b43.h" @@ -157,7 +157,6 @@ struct b43_dmadesc_generic { } __attribute__ ((__packed__)); /* Misc DMA constants */ -#define B43_DMA_RINGMEMSIZE PAGE_SIZE #define B43_DMA0_RX_FRAMEOFFSET 30 /* DMA engine tuning knobs */ @@ -165,6 +164,10 @@ struct b43_dmadesc_generic { #define B43_RXRING_SLOTS 64 #define B43_DMA0_RX_BUFFERSIZE IEEE80211_MAX_FRAME_LEN +/* Pointer poison */ +#define B43_DMA_PTR_POISON ((void *)ERR_PTR(-ENOMEM)) +#define b43_dma_ptr_is_poisoned(ptr) (unlikely((ptr) == B43_DMA_PTR_POISON)) + struct sk_buff; struct b43_private; @@ -243,6 +246,12 @@ struct b43_dmaring { /* The QOS priority assigned to this ring. Only used for TX rings. * This is the mac80211 "queue" value. */ u8 queue_prio; + /* Pointers and size of the originally allocated and mapped memory + * region for the descriptor ring. */ + void *alloc_descbase; + dma_addr_t alloc_dmabase; + unsigned int alloc_descsize; + /* Pointer to our wireless device. */ struct b43_wldev *dev; #ifdef CONFIG_B43_DEBUG /* Maximum number of used slots. */ |