drivers/net/ethernet/alibaba/eea/eea_desc.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/alibaba/eea/eea_desc.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/alibaba/eea/eea_desc.h
Extension
.h
Size
2439 bytes
Lines
139
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct eea_aq_desc {
	__le16 flags;
	__le16 id;
	__le16 reserved;
	u8 classid;
	u8 command;
	__le64 data_addr;
	__le64 reply_addr;
	__le32 data_len;
	__le32 reply_len;
};

struct eea_aq_cdesc {
	__le16 flags;
	__le16 id;
#define EEA_OK     0
#define EEA_ERR    0xffffffff
	__le32 status;
	__le32 reply_len;
	__le32 reserved1;

	__le64 reserved2;
	__le64 reserved3;
};

struct eea_rx_desc_no_hdr {
	__le16 flags;
	__le16 id;
	__le16 len;
	__le16 reserved1;

	__le64 addr;
};

struct eea_rx_desc {
	__le16 flags;
	__le16 id;
	__le16 len;
	__le16 reserved1;

	__le64 addr;

	__le64 hdr_addr;
	__le32 reserved2;
	__le32 reserved3;
};

#define EEA_RX_CDESC_HDR_LEN_MASK GENMASK_ULL(9, 0)

struct eea_rx_cdesc {
#define EEA_DESC_F_DATA_VALID	BIT(6)
#define EEA_DESC_F_SPLIT_HDR	BIT(5)
	__le16 flags;
	__le16 id;
	__le16 len;
#define EEA_NET_PT_NONE      0
#define EEA_NET_PT_IPv4      1
#define EEA_NET_PT_TCPv4     2
#define EEA_NET_PT_UDPv4     3
#define EEA_NET_PT_IPv6      4
#define EEA_NET_PT_TCPv6     5
#define EEA_NET_PT_UDPv6     6
#define EEA_NET_PT_IPv6_EX   7
#define EEA_NET_PT_TCPv6_EX  8
#define EEA_NET_PT_UDPv6_EX  9
	/* [9:0] is packet type. */
	__le16 type;

	/* hw timestamp [0:47]: ts */
	__le64 ts;

	__le32 hash;

	/* 0-9: hdr_len  split header
	 * 10-15: reserved1
	 */
	__le16 len_ex;
	__le16 reserved2;

	__le32 reserved3;
	__le32 reserved4;
};

#define EEA_TX_GSO_NONE   0
#define EEA_TX_GSO_TCPV4  1
#define EEA_TX_GSO_TCPV6  4
#define EEA_TX_GSO_UDP_L4 5
#define EEA_TX_GSO_ECN    0x80

struct eea_tx_desc {

Annotation

Implementation Notes