1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef S390_ISM_H |
3 | #define S390_ISM_H |
4 | |
5 | #include <linux/spinlock.h> |
6 | #include <linux/types.h> |
7 | #include <linux/pci.h> |
8 | #include <linux/ism.h> |
9 | #include <net/smc.h> |
10 | #include <asm/pci_insn.h> |
11 | |
12 | #define UTIL_STR_LEN 16 |
13 | |
14 | /* |
15 | * Do not use the first word of the DMB bits to ensure 8 byte aligned access. |
16 | */ |
17 | #define ISM_DMB_WORD_OFFSET 1 |
18 | #define ISM_DMB_BIT_OFFSET (ISM_DMB_WORD_OFFSET * 32) |
19 | #define ISM_IDENT_MASK 0x00FFFF |
20 | |
21 | #define ISM_REG_SBA 0x1 |
22 | #define ISM_REG_IEQ 0x2 |
23 | #define ISM_READ_GID 0x3 |
24 | #define ISM_ADD_VLAN_ID 0x4 |
25 | #define ISM_DEL_VLAN_ID 0x5 |
26 | #define ISM_SET_VLAN 0x6 |
27 | #define ISM_RESET_VLAN 0x7 |
28 | #define ISM_QUERY_INFO 0x8 |
29 | #define ISM_QUERY_RGID 0x9 |
30 | #define ISM_REG_DMB 0xA |
31 | #define ISM_UNREG_DMB 0xB |
32 | #define ISM_SIGNAL_IEQ 0xE |
33 | #define ISM_UNREG_SBA 0x11 |
34 | #define ISM_UNREG_IEQ 0x12 |
35 | |
36 | struct ism_req_hdr { |
37 | u32 cmd; |
38 | u16 : 16; |
39 | u16 len; |
40 | }; |
41 | |
42 | struct ism_resp_hdr { |
43 | u32 cmd; |
44 | u16 ret; |
45 | u16 len; |
46 | }; |
47 | |
48 | union ism_reg_sba { |
49 | struct { |
50 | struct ism_req_hdr hdr; |
51 | u64 sba; |
52 | } request; |
53 | struct { |
54 | struct ism_resp_hdr hdr; |
55 | } response; |
56 | } __aligned(16); |
57 | |
58 | union ism_reg_ieq { |
59 | struct { |
60 | struct ism_req_hdr hdr; |
61 | u64 ieq; |
62 | u64 len; |
63 | } request; |
64 | struct { |
65 | struct ism_resp_hdr hdr; |
66 | } response; |
67 | } __aligned(16); |
68 | |
69 | union ism_read_gid { |
70 | struct { |
71 | struct ism_req_hdr hdr; |
72 | } request; |
73 | struct { |
74 | struct ism_resp_hdr hdr; |
75 | u64 gid; |
76 | } response; |
77 | } __aligned(16); |
78 | |
79 | union ism_qi { |
80 | struct { |
81 | struct ism_req_hdr hdr; |
82 | } request; |
83 | struct { |
84 | struct ism_resp_hdr hdr; |
85 | u32 version; |
86 | u32 max_len; |
87 | u64 ism_state; |
88 | u64 my_gid; |
89 | u64 sba; |
90 | u64 ieq; |
91 | u32 ieq_len; |
92 | u32 : 32; |
93 | u32 dmbs_owned; |
94 | u32 dmbs_used; |
95 | u32 vlan_required; |
96 | u32 vlan_nr_ids; |
97 | u16 vlan_id[64]; |
98 | } response; |
99 | } __aligned(64); |
100 | |
101 | union ism_query_rgid { |
102 | struct { |
103 | struct ism_req_hdr hdr; |
104 | u64 rgid; |
105 | u32 vlan_valid; |
106 | u32 vlan_id; |
107 | } request; |
108 | struct { |
109 | struct ism_resp_hdr hdr; |
110 | } response; |
111 | } __aligned(16); |
112 | |
113 | union ism_reg_dmb { |
114 | struct { |
115 | struct ism_req_hdr hdr; |
116 | u64 dmb; |
117 | u32 dmb_len; |
118 | u32 sba_idx; |
119 | u32 vlan_valid; |
120 | u32 vlan_id; |
121 | u64 rgid; |
122 | } request; |
123 | struct { |
124 | struct ism_resp_hdr hdr; |
125 | u64 dmb_tok; |
126 | } response; |
127 | } __aligned(32); |
128 | |
129 | union ism_sig_ieq { |
130 | struct { |
131 | struct ism_req_hdr hdr; |
132 | u64 rgid; |
133 | u32 trigger_irq; |
134 | u32 event_code; |
135 | u64 info; |
136 | } request; |
137 | struct { |
138 | struct ism_resp_hdr hdr; |
139 | } response; |
140 | } __aligned(32); |
141 | |
142 | union ism_unreg_dmb { |
143 | struct { |
144 | struct ism_req_hdr hdr; |
145 | u64 dmb_tok; |
146 | } request; |
147 | struct { |
148 | struct ism_resp_hdr hdr; |
149 | } response; |
150 | } __aligned(16); |
151 | |
152 | union ism_cmd_simple { |
153 | struct { |
154 | struct ism_req_hdr hdr; |
155 | } request; |
156 | struct { |
157 | struct ism_resp_hdr hdr; |
158 | } response; |
159 | } __aligned(8); |
160 | |
161 | union ism_set_vlan_id { |
162 | struct { |
163 | struct ism_req_hdr hdr; |
164 | u64 vlan_id; |
165 | } request; |
166 | struct { |
167 | struct ism_resp_hdr hdr; |
168 | } response; |
169 | } __aligned(16); |
170 | |
171 | struct { |
172 | u64 ; |
173 | u64 ; |
174 | u64 ; |
175 | u64 : 64; |
176 | }; |
177 | |
178 | struct ism_eq { |
179 | struct ism_eq_header ; |
180 | struct ism_event entry[15]; |
181 | }; |
182 | |
183 | struct ism_sba { |
184 | u32 s : 1; /* summary bit */ |
185 | u32 e : 1; /* event bit */ |
186 | u32 : 30; |
187 | u32 dmb_bits[ISM_NR_DMBS / 32]; |
188 | u32 reserved[3]; |
189 | u16 dmbe_mask[ISM_NR_DMBS]; |
190 | }; |
191 | |
192 | #define ISM_CREATE_REQ(dmb, idx, sf, offset) \ |
193 | ((dmb) | (idx) << 24 | (sf) << 23 | (offset)) |
194 | |
195 | struct ism_systemeid { |
196 | u8 seid_string[24]; |
197 | u8 serial_number[4]; |
198 | u8 type[4]; |
199 | }; |
200 | |
201 | static inline void __ism_read_cmd(struct ism_dev *ism, void *data, |
202 | unsigned long offset, unsigned long len) |
203 | { |
204 | struct zpci_dev *zdev = to_zpci(ism->pdev); |
205 | u64 req = ZPCI_CREATE_REQ(zdev->fh, 2, 8); |
206 | |
207 | while (len > 0) { |
208 | __zpci_load(data, req, offset); |
209 | offset += 8; |
210 | data += 8; |
211 | len -= 8; |
212 | } |
213 | } |
214 | |
215 | static inline void __ism_write_cmd(struct ism_dev *ism, void *data, |
216 | unsigned long offset, unsigned long len) |
217 | { |
218 | struct zpci_dev *zdev = to_zpci(ism->pdev); |
219 | u64 req = ZPCI_CREATE_REQ(zdev->fh, 2, len); |
220 | |
221 | if (len) |
222 | __zpci_store_block(data, req, offset); |
223 | } |
224 | |
225 | static inline int __ism_move(struct ism_dev *ism, u64 dmb_req, void *data, |
226 | unsigned int size) |
227 | { |
228 | struct zpci_dev *zdev = to_zpci(ism->pdev); |
229 | u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, size); |
230 | |
231 | return __zpci_store_block(data, req, dmb_req); |
232 | } |
233 | |
234 | #endif /* S390_ISM_H */ |
235 | |