brcm80211/brcmsmac/dma.c

208 struct dma_info {  struct
209 	struct dma_pub dma; /* exported structure */
210 	char name[MAXNAMEL];	/* callers name for diag msgs */
212 	struct bcma_device *core;
213 	struct device *dmadev;
216 	struct brcms_ampdu_session ampdu_session;
218 	bool dma64;	/* this dma engine is operating in 64-bit mode */
219 	bool addrext;	/* this dma engine supports DmaExtendedAddrChanges */
222 	uint d64txregbase;
224 	uint d64rxregbase;
226 	struct dma64desc *txd64;
228 	struct dma64desc *rxd64;
230 	u16 dmadesc_align;	/* alignment requirement for dma descriptors */
232 	u16 ntxd;		/* # tx descriptors tunable */
233 	u16 txin;		/* index of next descriptor to reclaim */
234 	u16 txout;		/* index of next descriptor to post */
236 	struct sk_buff **txp;
238 	dma_addr_t txdpa;
240 	dma_addr_t txdpaorig;
241 	u16 txdalign;	/* #bytes added to alloc'd mem to align txd */
242 	u32 txdalloc;	/* #bytes allocated for the ring */
243 	u32 xmtptrbase;	/* When using unaligned descriptors, the ptr register
248 	u16 nrxd;	/* # rx descriptors tunable */
249 	u16 rxin;	/* index of next descriptor to reclaim */
250 	u16 rxout;	/* index of next descriptor to post */
252 	struct sk_buff **rxp;
254 	dma_addr_t rxdpa;
256 	dma_addr_t rxdpaorig;
257 	u16 rxdalign;	/* #bytes added to alloc'd mem to align rxd */
258 	u32 rxdalloc;	/* #bytes allocated for the ring */
259 	u32 rcvptrbase;	/* Base for ptr reg when using unaligned descriptors */
262 	unsigned int rxbufsize;	/* rx buffer size in bytes, not including
265 	uint rxextrahdrroom;	/* extra rx headroom, reverseved to assist upper
272 	uint nrxpost;		/* # rx buffers to keep posted */
273 	unsigned int rxoffset;	/* rxcontrol offset */
275 	uint ddoffsetlow;
277 	uint ddoffsethigh;
279 	uint dataoffsetlow;
281 	uint dataoffsethigh;
283 	bool aligndesc_4k;