spider_net.h

linux 内核源代码

	SPIDER_NET_GMAC1INT,
	SPIDER_NET_GIPSINT,
	SPIDER_NET_GFIFOINT,
	SPIDER_NET_GDMACINT,
	SPIDER_NET_GSYSINT,
	SPIDER_NET_GPWOPCMPINT,
	SPIDER_NET_GPROPCMPINT,
	SPIDER_NET_GPWFFINT,
	SPIDER_NET_GRMDADRINT,
	SPIDER_NET_GRMARPINT,
	SPIDER_NET_GRMMPINT,
	SPIDER_NET_GDTDEN0INT,
	SPIDER_NET_GDDDEN0INT,
	SPIDER_NET_GDCDEN0INT,
	SPIDER_NET_GDBDEN0INT,
	SPIDER_NET_GDADEN0INT,
	SPIDER_NET_GDTFDCINT,
	SPIDER_NET_GDDFDCINT,
	SPIDER_NET_GDCFDCINT,
	SPIDER_NET_GDBFDCINT,
	SPIDER_NET_GDAFDCINT,
	SPIDER_NET_GTTEDINT,
	SPIDER_NET_GDTDCEINT,
	SPIDER_NET_GRFDNMINT,
	SPIDER_NET_GRFCNMINT,
	SPIDER_NET_GRFBNMINT,
	SPIDER_NET_GRFANMINT,
	SPIDER_NET_GRFNMINT,
	SPIDER_NET_G1TMCNTINT,
	SPIDER_NET_GFREECNTINT
};
/* GHIINT1STS bits */
enum spider_net_int1_status {
	SPIDER_NET_GTMFLLINT = 0,
	SPIDER_NET_GRMFLLINT,
	SPIDER_NET_GTMSHTINT,
	SPIDER_NET_GDTINVDINT,
	SPIDER_NET_GRFDFLLINT,
	SPIDER_NET_GDDDCEINT,
	SPIDER_NET_GDDINVDINT,
	SPIDER_NET_GRFCFLLINT,
	SPIDER_NET_GDCDCEINT,
	SPIDER_NET_GDCINVDINT,
	SPIDER_NET_GRFBFLLINT,
	SPIDER_NET_GDBDCEINT,
	SPIDER_NET_GDBINVDINT,
	SPIDER_NET_GRFAFLLINT,
	SPIDER_NET_GDADCEINT,
	SPIDER_NET_GDAINVDINT,
	SPIDER_NET_GDTRSERINT,
	SPIDER_NET_GDDRSERINT,
	SPIDER_NET_GDCRSERINT,
	SPIDER_NET_GDBRSERINT,
	SPIDER_NET_GDARSERINT,
	SPIDER_NET_GDSERINT,
	SPIDER_NET_GDTPTERINT,
	SPIDER_NET_GDDPTERINT,
	SPIDER_NET_GDCPTERINT,
	SPIDER_NET_GDBPTERINT,
	SPIDER_NET_GDAPTERINT
};
/* GHIINT2STS bits */
enum spider_net_int2_status {
	SPIDER_NET_GPROPERINT = 0,
	SPIDER_NET_GMCTCRSNGINT,
	SPIDER_NET_GMCTLCOLINT,
	SPIDER_NET_GMCTTMOTINT,
	SPIDER_NET_GMCRCAERINT,
	SPIDER_NET_GMCRCALERINT,
	SPIDER_NET_GMCRALNERINT,
	SPIDER_NET_GMCROVRINT,
	SPIDER_NET_GMCRRNTINT,
	SPIDER_NET_GMCRRXERINT,
	SPIDER_NET_GTITCSERINT,
	SPIDER_NET_GTIFMTERINT,
	SPIDER_NET_GTIPKTRVKINT,
	SPIDER_NET_GTISPINGINT,
	SPIDER_NET_GTISADNGINT,
	SPIDER_NET_GTISPDNGINT,
	SPIDER_NET_GRIFMTERINT,
	SPIDER_NET_GRIPKTRVKINT,
	SPIDER_NET_GRISPINGINT,
	SPIDER_NET_GRISADNGINT,
	SPIDER_NET_GRISPDNGINT
};

#define SPIDER_NET_TXINT	(1 << SPIDER_NET_GDTFDCINT)

/* We rely on flagged descriptor interrupts */
#define SPIDER_NET_RXINT	( (1 << SPIDER_NET_GDAFDCINT) )

#define SPIDER_NET_LINKINT	( 1 << SPIDER_NET_GMAC2INT )

#define SPIDER_NET_ERRINT	( 0xffffffff & \
				  (~SPIDER_NET_TXINT) & \
				  (~SPIDER_NET_RXINT) & \
				  (~SPIDER_NET_LINKINT) )

#define SPIDER_NET_GPREXEC			0x80000000
#define SPIDER_NET_GPRDAT_MASK			0x0000ffff

#define SPIDER_NET_DMAC_NOINTR_COMPLETE		0x00800000
#define SPIDER_NET_DMAC_TXFRMTL		0x00040000
#define SPIDER_NET_DMAC_TCP			0x00020000
#define SPIDER_NET_DMAC_UDP			0x00030000
#define SPIDER_NET_TXDCEST			0x08000000

#define SPIDER_NET_DESCR_RXFDIS        0x00000001
#define SPIDER_NET_DESCR_RXDCEIS       0x00000002
#define SPIDER_NET_DESCR_RXDEN0IS      0x00000004
#define SPIDER_NET_DESCR_RXINVDIS      0x00000008
#define SPIDER_NET_DESCR_RXRERRIS      0x00000010
#define SPIDER_NET_DESCR_RXFDCIMS      0x00000100
#define SPIDER_NET_DESCR_RXDCEIMS      0x00000200
#define SPIDER_NET_DESCR_RXDEN0IMS     0x00000400
#define SPIDER_NET_DESCR_RXINVDIMS     0x00000800
#define SPIDER_NET_DESCR_RXRERRMIS     0x00001000
#define SPIDER_NET_DESCR_UNUSED        0x077fe0e0

#define SPIDER_NET_DESCR_IND_PROC_MASK		0xF0000000
#define SPIDER_NET_DESCR_COMPLETE		0x00000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_RESPONSE_ERROR		0x10000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_PROTECTION_ERROR	0x20000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_FRAME_END		0x40000000 /* used in rx */
#define SPIDER_NET_DESCR_FORCE_END		0x50000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_CARDOWNED		0xA0000000 /* used in rx and tx */
#define SPIDER_NET_DESCR_NOT_IN_USE		0xF0000000
#define SPIDER_NET_DESCR_TXDESFLG		0x00800000

#define SPIDER_NET_DESCR_BAD_STATUS   (SPIDER_NET_DESCR_RXDEN0IS | \
                                       SPIDER_NET_DESCR_RXRERRIS | \
                                       SPIDER_NET_DESCR_RXDEN0IMS | \
                                       SPIDER_NET_DESCR_RXINVDIMS | \
                                       SPIDER_NET_DESCR_RXRERRMIS | \
                                       SPIDER_NET_DESCR_UNUSED)

/* Descriptor, as defined by the hardware */
struct spider_net_hw_descr {
	u32 buf_addr;
	u32 buf_size;
	u32 next_descr_addr;
	u32 dmac_cmd_status;
	u32 result_size;
	u32 valid_size;	/* all zeroes for tx */
	u32 data_status;
	u32 data_error;	/* all zeroes for tx */
} __attribute__((aligned(32)));

struct spider_net_descr {
	struct spider_net_hw_descr *hwdescr;
	struct sk_buff *skb;
	u32 bus_addr;
	struct spider_net_descr *next;
	struct spider_net_descr *prev;
};

struct spider_net_descr_chain {
	spinlock_t lock;
	struct spider_net_descr *head;
	struct spider_net_descr *tail;
	struct spider_net_descr *ring;
	int num_desc;
	struct spider_net_hw_descr *hwring;
	dma_addr_t dma_addr;
};

/* descriptor data_status bits */
#define SPIDER_NET_RX_IPCHK		29
#define SPIDER_NET_RX_TCPCHK		28
#define SPIDER_NET_VLAN_PACKET		21
#define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \
					  (1 << SPIDER_NET_RX_TCPCHK) )

/* descriptor data_error bits */
#define SPIDER_NET_RX_IPCHKERR		27
#define SPIDER_NET_RX_RXTCPCHKERR	28

#define SPIDER_NET_DATA_ERR_CKSUM_MASK	(1 << SPIDER_NET_RX_IPCHKERR)

/* the cases we don't pass the packet to the stack.
 * 701b8000 would be correct, but every packets gets that flag */
#define SPIDER_NET_DESTROY_RX_FLAGS	0x700b8000

/* this will be bigger some time */
struct spider_net_options {
	int rx_csum; /* for rx: if 0 ip_summed=NONE,
			if 1 and hw has verified, ip_summed=UNNECESSARY */
};

#define SPIDER_NET_DEFAULT_MSG		( NETIF_MSG_DRV | \
					  NETIF_MSG_PROBE | \
					  NETIF_MSG_LINK | \
					  NETIF_MSG_TIMER | \
					  NETIF_MSG_IFDOWN | \
					  NETIF_MSG_IFUP | \
					  NETIF_MSG_RX_ERR | \
					  NETIF_MSG_TX_ERR | \
					  NETIF_MSG_TX_QUEUED | \
					  NETIF_MSG_INTR | \
					  NETIF_MSG_TX_DONE | \
					  NETIF_MSG_RX_STATUS | \
					  NETIF_MSG_PKTDATA | \
					  NETIF_MSG_HW | \
					  NETIF_MSG_WOL )

struct spider_net_extra_stats {
	unsigned long rx_desc_error;
	unsigned long tx_timeouts;
	unsigned long alloc_rx_skb_error;
	unsigned long rx_iommu_map_error;
	unsigned long tx_iommu_map_error;
	unsigned long rx_desc_unk_state;
};

struct spider_net_card {
	struct net_device *netdev;
	struct pci_dev *pdev;
	struct mii_phy phy;

	struct napi_struct napi;

	int medium;

	void __iomem *regs;

	struct spider_net_descr_chain tx_chain;
	struct spider_net_descr_chain rx_chain;
	struct spider_net_descr *low_watermark;

	int aneg_count;
	struct timer_list aneg_timer;
	struct timer_list tx_timer;
	struct work_struct tx_timeout_task;
	atomic_t tx_timeout_task_counter;
	wait_queue_head_t waitq;
	int num_rx_ints;
	int ignore_rx_ramfull;

	/* for ethtool */
	int msg_enable;
	struct spider_net_extra_stats spider_stats;
	struct spider_net_options options;

	/* Must be last item in struct */
	struct spider_net_descr darray[0];
};

#endif