1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2009 - 2018 Intel Corporation. */
3 
4 #ifndef _E1000_VF_H_
5 #define _E1000_VF_H_
6 
7 #include <linux/pci.h>
8 #include <linux/delay.h>
9 #include <linux/interrupt.h>
10 #include <linux/if_ether.h>
11 
12 #include "regs.h"
13 #include "defines.h"
14 
15 struct e1000_hw;
16 
17 #define E1000_DEV_ID_82576_VF		0x10CA
18 #define E1000_DEV_ID_I350_VF		0x1520
19 #define E1000_REVISION_0	0
20 #define E1000_REVISION_1	1
21 #define E1000_REVISION_2	2
22 #define E1000_REVISION_3	3
23 #define E1000_REVISION_4	4
24 
25 #define E1000_FUNC_0	0
26 #define E1000_FUNC_1	1
27 
28 /* Receive Address Register Count
29  * Number of high/low register pairs in the RAR.  The RAR (Receive Address
30  * Registers) holds the directed and multicast addresses that we monitor.
31  * These entries are also used for MAC-based filtering.
32  */
33 #define E1000_RAR_ENTRIES_VF	1
34 
35 /* Receive Descriptor - Advanced */
36 union e1000_adv_rx_desc {
37 	struct {
38 		__le64 pkt_addr; /* Packet buffer address */
39 		__le64 hdr_addr; /* Header buffer address */
40 	} read;
41 	struct {
42 		struct {
43 			union {
44 				__le32 data;
45 				struct {
46 					__le16 pkt_info; /* RSS/Packet type */
47 					/* Split Header, hdr buffer length */
48 					__le16 hdr_info;
49 				} hs_rss;
50 			} lo_dword;
51 			union {
52 				__le32 rss; /* RSS Hash */
53 				struct {
54 					__le16 ip_id; /* IP id */
55 					__le16 csum;  /* Packet Checksum */
56 				} csum_ip;
57 			} hi_dword;
58 		} lower;
59 		struct {
60 			__le32 status_error; /* ext status/error */
61 			__le16 length; /* Packet length */
62 			__le16 vlan; /* VLAN tag */
63 		} upper;
64 	} wb;  /* writeback */
65 };
66 
67 #define E1000_RXDADV_HDRBUFLEN_MASK	0x7FE0
68 #define E1000_RXDADV_HDRBUFLEN_SHIFT	5
69 
70 /* Transmit Descriptor - Advanced */
71 union e1000_adv_tx_desc {
72 	struct {
73 		__le64 buffer_addr; /* Address of descriptor's data buf */
74 		__le32 cmd_type_len;
75 		__le32 olinfo_status;
76 	} read;
77 	struct {
78 		__le64 rsvd; /* Reserved */
79 		__le32 nxtseq_seed;
80 		__le32 status;
81 	} wb;
82 };
83 
84 /* Adv Transmit Descriptor Config Masks */
85 #define E1000_ADVTXD_DTYP_CTXT	0x00200000 /* Advanced Context Descriptor */
86 #define E1000_ADVTXD_DTYP_DATA	0x00300000 /* Advanced Data Descriptor */
87 #define E1000_ADVTXD_DCMD_EOP	0x01000000 /* End of Packet */
88 #define E1000_ADVTXD_DCMD_IFCS	0x02000000 /* Insert FCS (Ethernet CRC) */
89 #define E1000_ADVTXD_DCMD_RS	0x08000000 /* Report Status */
90 #define E1000_ADVTXD_DCMD_DEXT	0x20000000 /* Descriptor extension (1=Adv) */
91 #define E1000_ADVTXD_DCMD_VLE	0x40000000 /* VLAN pkt enable */
92 #define E1000_ADVTXD_DCMD_TSE	0x80000000 /* TCP Seg enable */
93 #define E1000_ADVTXD_PAYLEN_SHIFT	14 /* Adv desc PAYLEN shift */
94 
95 /* Context descriptors */
96 struct e1000_adv_tx_context_desc {
97 	__le32 vlan_macip_lens;
98 	__le32 seqnum_seed;
99 	__le32 type_tucmd_mlhl;
100 	__le32 mss_l4len_idx;
101 };
102 
103 #define E1000_ADVTXD_MACLEN_SHIFT	9  /* Adv ctxt desc mac len shift */
104 #define E1000_ADVTXD_TUCMD_IPV4		0x00000400 /* IP Packet Type: 1=IPv4 */
105 #define E1000_ADVTXD_TUCMD_L4T_TCP	0x00000800 /* L4 Packet TYPE of TCP */
106 #define E1000_ADVTXD_TUCMD_L4T_SCTP	0x00001000 /* L4 packet TYPE of SCTP */
107 #define E1000_ADVTXD_L4LEN_SHIFT	8  /* Adv ctxt L4LEN shift */
108 #define E1000_ADVTXD_MSS_SHIFT		16 /* Adv ctxt MSS shift */
109 
110 enum e1000_mac_type {
111 	e1000_undefined = 0,
112 	e1000_vfadapt,
113 	e1000_vfadapt_i350,
114 	e1000_num_macs  /* List is 1-based, so subtract 1 for true count. */
115 };
116 
117 struct e1000_vf_stats {
118 	u64 base_gprc;
119 	u64 base_gptc;
120 	u64 base_gorc;
121 	u64 base_gotc;
122 	u64 base_mprc;
123 	u64 base_gotlbc;
124 	u64 base_gptlbc;
125 	u64 base_gorlbc;
126 	u64 base_gprlbc;
127 
128 	u32 last_gprc;
129 	u32 last_gptc;
130 	u32 last_gorc;
131 	u32 last_gotc;
132 	u32 last_mprc;
133 	u32 last_gotlbc;
134 	u32 last_gptlbc;
135 	u32 last_gorlbc;
136 	u32 last_gprlbc;
137 
138 	u64 gprc;
139 	u64 gptc;
140 	u64 gorc;
141 	u64 gotc;
142 	u64 mprc;
143 	u64 gotlbc;
144 	u64 gptlbc;
145 	u64 gorlbc;
146 	u64 gprlbc;
147 };
148 
149 #include "mbx.h"
150 
151 struct e1000_mac_operations {
152 	/* Function pointers for the MAC. */
153 	s32  (*init_params)(struct e1000_hw *);
154 	s32  (*check_for_link)(struct e1000_hw *);
155 	void (*clear_vfta)(struct e1000_hw *);
156 	s32  (*get_bus_info)(struct e1000_hw *);
157 	s32  (*get_link_up_info)(struct e1000_hw *, u16 *, u16 *);
158 	void (*update_mc_addr_list)(struct e1000_hw *, u8 *, u32, u32, u32);
159 	s32  (*set_uc_addr)(struct e1000_hw *, u32, u8 *);
160 	s32  (*reset_hw)(struct e1000_hw *);
161 	s32  (*init_hw)(struct e1000_hw *);
162 	s32  (*setup_link)(struct e1000_hw *);
163 	void (*write_vfta)(struct e1000_hw *, u32, u32);
164 	void (*mta_set)(struct e1000_hw *, u32);
165 	void (*rar_set)(struct e1000_hw *, u8*, u32);
166 	s32  (*read_mac_addr)(struct e1000_hw *);
167 	s32  (*set_vfta)(struct e1000_hw *, u16, bool);
168 };
169 
170 struct e1000_mac_info {
171 	struct e1000_mac_operations ops;
172 	u8 addr[6];
173 	u8 perm_addr[6];
174 
175 	enum e1000_mac_type type;
176 
177 	u16 mta_reg_count;
178 	u16 rar_entry_count;
179 
180 	bool get_link_status;
181 };
182 
183 struct e1000_mbx_operations {
184 	s32 (*init_params)(struct e1000_hw *hw);
185 	s32 (*read)(struct e1000_hw *, u32 *, u16);
186 	s32 (*write)(struct e1000_hw *, u32 *, u16);
187 	s32 (*read_posted)(struct e1000_hw *, u32 *, u16);
188 	s32 (*write_posted)(struct e1000_hw *, u32 *, u16);
189 	s32 (*check_for_msg)(struct e1000_hw *);
190 	s32 (*check_for_ack)(struct e1000_hw *);
191 	s32 (*check_for_rst)(struct e1000_hw *);
192 };
193 
194 struct e1000_mbx_stats {
195 	u32 msgs_tx;
196 	u32 msgs_rx;
197 
198 	u32 acks;
199 	u32 reqs;
200 	u32 rsts;
201 };
202 
203 struct e1000_mbx_info {
204 	struct e1000_mbx_operations ops;
205 	struct e1000_mbx_stats stats;
206 	u32 timeout;
207 	u32 usec_delay;
208 	u16 size;
209 };
210 
211 struct e1000_dev_spec_vf {
212 	u32 vf_number;
213 	u32 v2p_mailbox;
214 };
215 
216 struct e1000_hw {
217 	void *back;
218 
219 	u8 __iomem *hw_addr;
220 	u8 __iomem *flash_address;
221 	unsigned long io_base;
222 
223 	struct e1000_mac_info  mac;
224 	struct e1000_mbx_info mbx;
225 	spinlock_t mbx_lock;		/* serializes mailbox ops */
226 
227 	union {
228 		struct e1000_dev_spec_vf vf;
229 	} dev_spec;
230 
231 	u16 device_id;
232 	u16 subsystem_vendor_id;
233 	u16 subsystem_device_id;
234 	u16 vendor_id;
235 
236 	u8  revision_id;
237 };
238 
239 /* These functions must be implemented by drivers */
240 void e1000_rlpml_set_vf(struct e1000_hw *, u16);
241 void e1000_init_function_pointers_vf(struct e1000_hw *hw);
242 
243 #endif /* _E1000_VF_H_ */
244