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[J-linux.git] / drivers / net / ethernet / intel / igc / igc_base.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c)  2018 Intel Corporation */
3
4 #ifndef _IGC_BASE_H_
5 #define _IGC_BASE_H_
6
7 /* forward declaration */
8 void igc_rx_fifo_flush_base(struct igc_hw *hw);
9 void igc_power_down_phy_copper_base(struct igc_hw *hw);
10 bool igc_is_device_id_i225(struct igc_hw *hw);
11 bool igc_is_device_id_i226(struct igc_hw *hw);
12
13 /* Transmit Descriptor - Advanced */
14 union igc_adv_tx_desc {
15         struct {
16                 __le64 buffer_addr;    /* Address of descriptor's data buf */
17                 __le32 cmd_type_len;
18                 __le32 olinfo_status;
19         } read;
20         struct {
21                 __le64 rsvd;       /* Reserved */
22                 __le32 nxtseq_seed;
23                 __le32 status;
24         } wb;
25 };
26
27 /* Context descriptors */
28 struct igc_adv_tx_context_desc {
29         __le32 vlan_macip_lens;
30         __le32 launch_time;
31         __le32 type_tucmd_mlhl;
32         __le32 mss_l4len_idx;
33 };
34
35 /* Adv Transmit Descriptor Config Masks */
36 #define IGC_ADVTXD_MAC_TSTAMP   0x00080000 /* IEEE1588 Timestamp packet */
37 #define IGC_ADVTXD_TSTAMP_REG_1 0x00010000 /* Select register 1 for timestamp */
38 #define IGC_ADVTXD_TSTAMP_REG_2 0x00020000 /* Select register 2 for timestamp */
39 #define IGC_ADVTXD_TSTAMP_REG_3 0x00030000 /* Select register 3 for timestamp */
40 #define IGC_ADVTXD_TSTAMP_TIMER_1       0x00010000 /* Select timer 1 for timestamp */
41 #define IGC_ADVTXD_TSTAMP_TIMER_2       0x00020000 /* Select timer 2 for timestamp */
42 #define IGC_ADVTXD_TSTAMP_TIMER_3       0x00030000 /* Select timer 3 for timestamp */
43
44 #define IGC_ADVTXD_DTYP_CTXT    0x00200000 /* Advanced Context Descriptor */
45 #define IGC_ADVTXD_DTYP_DATA    0x00300000 /* Advanced Data Descriptor */
46 #define IGC_ADVTXD_DCMD_EOP     0x01000000 /* End of Packet */
47 #define IGC_ADVTXD_DCMD_IFCS    0x02000000 /* Insert FCS (Ethernet CRC) */
48 #define IGC_ADVTXD_DCMD_RS      0x08000000 /* Report Status */
49 #define IGC_ADVTXD_DCMD_DEXT    0x20000000 /* Descriptor extension (1=Adv) */
50 #define IGC_ADVTXD_DCMD_VLE     0x40000000 /* VLAN pkt enable */
51 #define IGC_ADVTXD_DCMD_TSE     0x80000000 /* TCP Seg enable */
52 #define IGC_ADVTXD_PAYLEN_SHIFT 14 /* Adv desc PAYLEN shift */
53
54 #define IGC_RAR_ENTRIES         16
55
56 /* Receive Descriptor - Advanced */
57 union igc_adv_rx_desc {
58         struct {
59                 __le64 pkt_addr; /* Packet buffer address */
60                 __le64 hdr_addr; /* Header buffer address */
61         } read;
62         struct {
63                 struct {
64                         union {
65                                 __le32 data;
66                                 struct {
67                                         __le16 pkt_info; /*RSS type, Pkt type*/
68                                         /* Split Header, header buffer len */
69                                         __le16 hdr_info;
70                                 } hs_rss;
71                         } lo_dword;
72                         union {
73                                 __le32 rss; /* RSS Hash */
74                                 struct {
75                                         __le16 ip_id; /* IP id */
76                                         __le16 csum; /* Packet Checksum */
77                                 } csum_ip;
78                         } hi_dword;
79                 } lower;
80                 struct {
81                         __le32 status_error; /* ext status/error */
82                         __le16 length; /* Packet length */
83                         __le16 vlan; /* VLAN tag */
84                 } upper;
85         } wb;  /* writeback */
86 };
87
88 /* Additional Transmit Descriptor Control definitions */
89 #define IGC_TXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Tx Queue */
90 #define IGC_TXDCTL_SWFLUSH      0x04000000 /* Transmit Software Flush */
91
92 /* Additional Receive Descriptor Control definitions */
93 #define IGC_RXDCTL_QUEUE_ENABLE 0x02000000 /* Ena specific Rx Queue */
94 #define IGC_RXDCTL_SWFLUSH              0x04000000 /* Receive Software Flush */
95
96 /* SRRCTL bit definitions */
97 #define IGC_SRRCTL_BSIZEPKT_MASK        GENMASK(6, 0)
98 #define IGC_SRRCTL_BSIZEPKT(x)          FIELD_PREP(IGC_SRRCTL_BSIZEPKT_MASK, \
99                                         (x) / 1024) /* in 1 KB resolution */
100 #define IGC_SRRCTL_BSIZEHDR_MASK        GENMASK(13, 8)
101 #define IGC_SRRCTL_BSIZEHDR(x)          FIELD_PREP(IGC_SRRCTL_BSIZEHDR_MASK, \
102                                         (x) / 64) /* in 64 bytes resolution */
103 #define IGC_SRRCTL_DESCTYPE_MASK        GENMASK(27, 25)
104 #define IGC_SRRCTL_DESCTYPE_ADV_ONEBUF  FIELD_PREP(IGC_SRRCTL_DESCTYPE_MASK, 1)
105
106 #endif /* _IGC_BASE_H */
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