139 lines
2.4 KiB
C
139 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Driver for Alibaba Elastic Ethernet Adapter.
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*
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* Copyright (C) 2025 Alibaba Inc.
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*/
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#ifndef __EEA_DESC_H__
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#define __EEA_DESC_H__
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#define EEA_DESC_TS_MASK GENMASK_ULL(47, 0)
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#define EEA_DESC_TS(desc) (le64_to_cpu((desc)->ts) & EEA_DESC_TS_MASK)
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struct eea_aq_desc {
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__le16 flags;
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__le16 id;
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__le16 reserved;
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u8 classid;
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u8 command;
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__le64 data_addr;
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__le64 reply_addr;
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__le32 data_len;
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__le32 reply_len;
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};
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struct eea_aq_cdesc {
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__le16 flags;
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__le16 id;
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#define EEA_OK 0
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#define EEA_ERR 0xffffffff
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__le32 status;
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__le32 reply_len;
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__le32 reserved1;
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__le64 reserved2;
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__le64 reserved3;
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};
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struct eea_rx_desc_no_hdr {
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__le16 flags;
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__le16 id;
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__le16 len;
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__le16 reserved1;
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__le64 addr;
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};
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struct eea_rx_desc {
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__le16 flags;
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__le16 id;
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__le16 len;
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__le16 reserved1;
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__le64 addr;
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__le64 hdr_addr;
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__le32 reserved2;
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__le32 reserved3;
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};
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#define EEA_RX_CDESC_HDR_LEN_MASK GENMASK_ULL(9, 0)
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struct eea_rx_cdesc {
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#define EEA_DESC_F_DATA_VALID BIT(6)
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#define EEA_DESC_F_SPLIT_HDR BIT(5)
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__le16 flags;
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__le16 id;
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__le16 len;
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#define EEA_NET_PT_NONE 0
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#define EEA_NET_PT_IPv4 1
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#define EEA_NET_PT_TCPv4 2
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#define EEA_NET_PT_UDPv4 3
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#define EEA_NET_PT_IPv6 4
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#define EEA_NET_PT_TCPv6 5
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#define EEA_NET_PT_UDPv6 6
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#define EEA_NET_PT_IPv6_EX 7
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#define EEA_NET_PT_TCPv6_EX 8
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#define EEA_NET_PT_UDPv6_EX 9
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/* [9:0] is packet type. */
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__le16 type;
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/* hw timestamp [0:47]: ts */
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__le64 ts;
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__le32 hash;
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/* 0-9: hdr_len split header
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* 10-15: reserved1
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*/
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__le16 len_ex;
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__le16 reserved2;
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__le32 reserved3;
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__le32 reserved4;
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};
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#define EEA_TX_GSO_NONE 0
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#define EEA_TX_GSO_TCPV4 1
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#define EEA_TX_GSO_TCPV6 4
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#define EEA_TX_GSO_UDP_L4 5
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#define EEA_TX_GSO_ECN 0x80
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struct eea_tx_desc {
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#define EEA_DESC_F_DO_CSUM BIT(6)
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__le16 flags;
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__le16 id;
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__le16 len;
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__le16 reserved1;
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__le64 addr;
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__le16 csum_start;
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__le16 csum_offset;
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u8 gso_type;
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u8 reserved2;
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__le16 gso_size;
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__le64 reserved3;
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};
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struct eea_tx_cdesc {
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__le16 flags;
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__le16 id;
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__le16 len;
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__le16 reserved1;
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/* hw timestamp [0:47]: ts */
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__le64 ts;
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};
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#define EEA_DB_FLAGS_OFF 0
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#define EEA_DB_IDX_OFF (2 * 8)
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#define EEA_DB_TX_CQ_HEAD_OFF (4 * 8)
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#define EEA_DB_RX_CQ_HEAD_OFF (6 * 8)
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#define EEA_IDX_PRESENT BIT(0)
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#define EEA_IRQ_MASK BIT(1)
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#define EEA_IRQ_UNMASK BIT(2)
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#endif
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