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/* $OpenBSD: igc_base.h,v 1.4 2024/05/13 01:15:51 jsg Exp $ */
/*-
* Copyright 2021 Intel Corp
* Copyright 2021 Rubicon Communications, LLC (Netgate)
* SPDX-License-Identifier: BSD-3-Clause
*
* $FreeBSD$
*/
#ifndef _IGC_BASE_H_
#define _IGC_BASE_H_
/* Forward declaration */
struct igc_hw;
int igc_init_hw_base(struct igc_hw *hw);
void igc_power_down_phy_copper_base(struct igc_hw *hw);
int igc_acquire_phy_base(struct igc_hw *hw);
void igc_release_phy_base(struct igc_hw *hw);
/* Transmit Descriptor - Advanced */
union igc_adv_tx_desc {
struct {
uint64_t buffer_addr; /* Address of descriptor's data buf */
uint32_t cmd_type_len;
uint32_t olinfo_status;
} read;
struct {
uint64_t rsvd; /* Reserved */
uint32_t nxtseq_seed;
uint32_t status;
} wb;
};
/* Context descriptors */
struct igc_adv_tx_context_desc {
uint32_t vlan_macip_lens;
union {
uint32_t launch_time;
uint32_t seqnum_seed;
};
uint32_t type_tucmd_mlhl;
uint32_t mss_l4len_idx;
};
/* Adv Transmit Descriptor Config Masks */
#define IGC_ADVTXD_DTALEN_MASK 0x0000FFFF
#define IGC_ADVTXD_DTYP_CTXT 0x00200000 /* Advanced Context Descriptor */
#define IGC_ADVTXD_DTYP_DATA 0x00300000 /* Advanced Data Descriptor */
#define IGC_ADVTXD_DCMD_EOP 0x01000000 /* End of Packet */
#define IGC_ADVTXD_DCMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */
#define IGC_ADVTXD_DCMD_RS 0x08000000 /* Report Status */
#define IGC_ADVTXD_DCMD_DDTYP_ISCSI 0x10000000 /* DDP hdr type or iSCSI */
#define IGC_ADVTXD_DCMD_DEXT 0x20000000 /* Descriptor extension (1=Adv) */
#define IGC_ADVTXD_DCMD_VLE 0x40000000 /* VLAN pkt enable */
#define IGC_ADVTXD_DCMD_TSE 0x80000000 /* TCP Seg enable */
#define IGC_ADVTXD_MAC_LINKSEC 0x00040000 /* Apply LinkSec on pkt */
#define IGC_ADVTXD_MAC_TSTAMP 0x00080000 /* IEEE1588 Timestamp pkt */
#define IGC_ADVTXD_STAT_SN_CRC 0x00000002 /* NXTSEQ/SEED prsnt in WB */
#define IGC_ADVTXD_IDX_SHIFT 4 /* Adv desc Index shift */
#define IGC_ADVTXD_POPTS_ISCO_1ST 0x00000000 /* 1st TSO of iSCSI PDU */
#define IGC_ADVTXD_POPTS_ISCO_MDL 0x00000800 /* Middle TSO of iSCSI PDU */
#define IGC_ADVTXD_POPTS_ISCO_LAST 0x00001000 /* Last TSO of iSCSI PDU */
/* 1st & Last TSO-full iSCSI PDU*/
#define IGC_ADVTXD_POPTS_ISCO_FULL 0x00001800
#define IGC_ADVTXD_POPTS_IPSEC 0x00000400 /* IPSec offload request */
#define IGC_ADVTXD_PAYLEN_SHIFT 14 /* Adv desc PAYLEN shift */
#define IGC_ADVTXD_PAYLEN_MASK 0xFFFFD000 /* Adv desc PAYLEN shift */
/* Advanced Transmit Context Descriptor Config */
#define IGC_ADVTXD_MACLEN_SHIFT 9 /* Adv ctxt desc mac len shift */
#define IGC_ADVTXD_VLAN_SHIFT 16 /* Adv ctxt vlan tag shift */
#define IGC_ADVTXD_TUCMD_IPV4 0x00000400 /* IP Packet Type: 1=IPv4 */
#define IGC_ADVTXD_TUCMD_IPV6 0x00000000 /* IP Packet Type: 0=IPv6 */
#define IGC_ADVTXD_TUCMD_L4T_UDP 0x00000000 /* L4 Packet TYPE of UDP */
#define IGC_ADVTXD_TUCMD_L4T_TCP 0x00000800 /* L4 Packet TYPE of TCP */
#define IGC_ADVTXD_TUCMD_L4T_SCTP 0x00001000 /* L4 Packet TYPE of SCTP */
#define IGC_ADVTXD_TUCMD_IPSEC_TYPE_ESP 0x00002000 /* IPSec Type ESP */
/* IPSec Encrypt Enable for ESP */
#define IGC_ADVTXD_TUCMD_IPSEC_ENCRYPT_EN 0x00004000
/* Req requires Markers and CRC */
#define IGC_ADVTXD_TUCMD_MKRREQ 0x00002000
#define IGC_ADVTXD_L4LEN_SHIFT 8 /* Adv ctxt L4LEN shift */
#define IGC_ADVTXD_MSS_SHIFT 16 /* Adv ctxt MSS shift */
/* Adv ctxt IPSec SA IDX mask */
#define IGC_ADVTXD_IPSEC_SA_INDEX_MASK 0x000000FF
/* Adv ctxt IPSec ESP len mask */
#define IGC_ADVTXD_IPSEC_ESP_LEN_MASK 0x000000FF
#define IGC_RAR_ENTRIES_BASE 16
/* Receive Descriptor - Advanced */
union igc_adv_rx_desc {
struct {
uint64_t pkt_addr; /* Packet buffer address */
uint64_t hdr_addr; /* Header buffer address */
} read;
struct {
struct {
union {
uint32_t data;
struct {
uint16_t pkt_info; /* Pkt type */
/* Split Header, header buffer len */
uint16_t hdr_info;
} hs_rss;
} lo_dword;
union {
uint32_t rss; /* RSS hash */
struct {
uint16_t ip_id; /* IP id */
uint16_t csum; /* Packet checksum */
} csum_ip;
} hi_dword;
} lower;
struct {
uint32_t status_error; /* ext status/error */
uint16_t length; /* Packet length */
uint16_t vlan; /* VLAN tag */
} upper;
} wb; /* writeback */
};
/* Additional Transmit Descriptor Control definitions */
#define IGC_TXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Tx Queue */
/* Additional Receive Descriptor Control definitions */
#define IGC_RXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Rx Queue */
/* SRRCTL bit definitions */
#define IGC_SRRCTL_BSIZEPKT_SHIFT 10 /* Shift _right_ */
#define IGC_SRRCTL_BSIZEHDRSIZE_SHIFT 2 /* Shift _left_ */
#define IGC_SRRCTL_DESCTYPE_ADV_ONEBUF 0x02000000
#endif /* _IGC_BASE_H_ */
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