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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Driver for Alibaba Elastic Ethernet Adapter.
*
* Copyright (C) 2025 Alibaba Inc.
*/
#ifndef __EEA_DESC_H__
#define __EEA_DESC_H__
#define EEA_DESC_TS_MASK GENMASK_ULL(47, 0)
#define EEA_DESC_TS(desc) (le64_to_cpu((desc)->ts) & EEA_DESC_TS_MASK)
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 {
#define EEA_DESC_F_DO_CSUM BIT(6)
__le16 flags;
__le16 id;
__le16 len;
__le16 reserved1;
__le64 addr;
__le16 csum_start;
__le16 csum_offset;
u8 gso_type;
u8 reserved2;
__le16 gso_size;
__le64 reserved3;
};
struct eea_tx_cdesc {
__le16 flags;
__le16 id;
__le16 len;
__le16 reserved1;
/* hw timestamp [0:47]: ts */
__le64 ts;
};
#define EEA_DB_FLAGS_OFF 0
#define EEA_DB_IDX_OFF (2 * 8)
#define EEA_DB_TX_CQ_HEAD_OFF (4 * 8)
#define EEA_DB_RX_CQ_HEAD_OFF (6 * 8)
#define EEA_IDX_PRESENT BIT(0)
#define EEA_IRQ_MASK BIT(1)
#define EEA_IRQ_UNMASK BIT(2)
#endif
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