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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2018 Intel Corporation */
#ifndef _IGC_BASE_H_
#define _IGC_BASE_H_
/* forward declaration */
void igc_rx_fifo_flush_base(struct igc_hw *hw);
void igc_power_down_phy_copper_base(struct igc_hw *hw);
bool igc_is_device_id_i225(struct igc_hw *hw);
bool igc_is_device_id_i226(struct igc_hw *hw);
/* Transmit Descriptor - Advanced */
union igc_adv_tx_desc {
struct {
__le64 buffer_addr; /* Address of descriptor's data buf */
__le32 cmd_type_len;
__le32 olinfo_status;
} read;
struct {
__le64 rsvd; /* Reserved */
__le32 nxtseq_seed;
__le32 status;
} wb;
};
/* Context descriptors */
struct igc_adv_tx_context_desc {
__le32 vlan_macip_lens;
__le32 launch_time;
__le32 type_tucmd_mlhl;
__le32 mss_l4len_idx;
};
/* Adv Transmit Descriptor Config Masks */
#define IGC_ADVTXD_MAC_TSTAMP 0x00080000 /* IEEE1588 Timestamp packet */
#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_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_PAYLEN_SHIFT 14 /* Adv desc PAYLEN shift */
#define IGC_RAR_ENTRIES 16
/* Receive Descriptor - Advanced */
union igc_adv_rx_desc {
struct {
__le64 pkt_addr; /* Packet buffer address */
__le64 hdr_addr; /* Header buffer address */
} read;
struct {
struct {
union {
__le32 data;
struct {
__le16 pkt_info; /*RSS type, Pkt type*/
/* Split Header, header buffer len */
__le16 hdr_info;
} hs_rss;
} lo_dword;
union {
__le32 rss; /* RSS Hash */
struct {
__le16 ip_id; /* IP id */
__le16 csum; /* Packet Checksum */
} csum_ip;
} hi_dword;
} lower;
struct {
__le32 status_error; /* ext status/error */
__le16 length; /* Packet length */
__le16 vlan; /* VLAN tag */
} upper;
} wb; /* writeback */
};
/* Additional Transmit Descriptor Control definitions */
#define IGC_TXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Tx Queue */
#define IGC_TXDCTL_SWFLUSH 0x04000000 /* Transmit Software Flush */
/* Additional Receive Descriptor Control definitions */
#define IGC_RXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Rx Queue */
#define IGC_RXDCTL_SWFLUSH 0x04000000 /* Receive Software Flush */
/* SRRCTL bit definitions */
#define IGC_SRRCTL_BSIZEPKT_MASK GENMASK(6, 0)
#define IGC_SRRCTL_BSIZEPKT(x) FIELD_PREP(IGC_SRRCTL_BSIZEPKT_MASK, \
(x) / 1024) /* in 1 KB resolution */
#define IGC_SRRCTL_BSIZEHDR_MASK GENMASK(13, 8)
#define IGC_SRRCTL_BSIZEHDR(x) FIELD_PREP(IGC_SRRCTL_BSIZEHDR_MASK, \
(x) / 64) /* in 64 bytes resolution */
#define IGC_SRRCTL_DESCTYPE_MASK GENMASK(27, 25)
#define IGC_SRRCTL_DESCTYPE_ADV_ONEBUF FIELD_PREP(IGC_SRRCTL_DESCTYPE_MASK, 1)
#endif /* _IGC_BASE_H */
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