Merge tag 'mm-hotfixes-stable-2025-07-11-16-16' of git://git.kernel.org/pub/scm/linux...
[linux-block.git] / include / uapi / linux / smc.h
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6f52b16c 1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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2/*
3 * Shared Memory Communications over RDMA (SMC-R) and RoCE
4 *
5 * Definitions for generic netlink based configuration of an SMC-R PNET table
6 *
7 * Copyright IBM Corp. 2016
8 *
9 * Author(s): Thomas Richter <tmricht@linux.vnet.ibm.com>
10 */
11
12#ifndef _UAPI_LINUX_SMC_H_
13#define _UAPI_LINUX_SMC_H_
14
15/* Netlink SMC_PNETID attributes */
16enum {
17 SMC_PNETID_UNSPEC,
18 SMC_PNETID_NAME,
19 SMC_PNETID_ETHNAME,
20 SMC_PNETID_IBNAME,
21 SMC_PNETID_IBPORT,
22 __SMC_PNETID_MAX,
23 SMC_PNETID_MAX = __SMC_PNETID_MAX - 1
24};
25
26enum { /* SMC PNET Table commands */
27 SMC_PNETID_GET = 1,
28 SMC_PNETID_ADD,
29 SMC_PNETID_DEL,
30 SMC_PNETID_FLUSH
31};
32
33#define SMCR_GENL_FAMILY_NAME "SMC_PNETID"
34#define SMCR_GENL_FAMILY_VERSION 1
35
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36/* gennetlink interface to access non-socket information from SMC module */
37#define SMC_GENL_FAMILY_NAME "SMC_GEN_NETLINK"
38#define SMC_GENL_FAMILY_VERSION 1
39
aaf95523 40#define SMC_PCI_ID_STR_LEN 16 /* Max length of pci id string */
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41#define SMC_MAX_HOSTNAME_LEN 32 /* Max length of the hostname */
42#define SMC_MAX_UEID 4 /* Max number of user EIDs */
43#define SMC_MAX_EID_LEN 32 /* Max length of an EID */
aaf95523 44
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45/* SMC_GENL_FAMILY commands */
46enum {
47 SMC_NETLINK_GET_SYS_INFO = 1,
e9b8c845 48 SMC_NETLINK_GET_LGR_SMCR,
5a7e09d5 49 SMC_NETLINK_GET_LINK_SMCR,
8f9dde4b 50 SMC_NETLINK_GET_LGR_SMCD,
aaf95523 51 SMC_NETLINK_GET_DEV_SMCD,
a3db10ef 52 SMC_NETLINK_GET_DEV_SMCR,
8c40602b 53 SMC_NETLINK_GET_STATS,
f0dd7bf5 54 SMC_NETLINK_GET_FBACK_STATS,
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55 SMC_NETLINK_DUMP_UEID,
56 SMC_NETLINK_ADD_UEID,
57 SMC_NETLINK_REMOVE_UEID,
58 SMC_NETLINK_FLUSH_UEID,
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59 SMC_NETLINK_DUMP_SEID,
60 SMC_NETLINK_ENABLE_SEID,
61 SMC_NETLINK_DISABLE_SEID,
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62 SMC_NETLINK_DUMP_HS_LIMITATION,
63 SMC_NETLINK_ENABLE_HS_LIMITATION,
64 SMC_NETLINK_DISABLE_HS_LIMITATION,
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65};
66
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67/* SMC_GENL_FAMILY top level attributes */
68enum {
69 SMC_GEN_UNSPEC,
099b990b 70 SMC_GEN_SYS_INFO, /* nest */
e9b8c845 71 SMC_GEN_LGR_SMCR, /* nest */
5a7e09d5 72 SMC_GEN_LINK_SMCR, /* nest */
8f9dde4b 73 SMC_GEN_LGR_SMCD, /* nest */
aaf95523 74 SMC_GEN_DEV_SMCD, /* nest */
a3db10ef 75 SMC_GEN_DEV_SMCR, /* nest */
8c40602b 76 SMC_GEN_STATS, /* nest */
f0dd7bf5 77 SMC_GEN_FBACK_STATS, /* nest */
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78 __SMC_GEN_MAX,
79 SMC_GEN_MAX = __SMC_GEN_MAX - 1
80};
81
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82/* SMC_GEN_SYS_INFO attributes */
83enum {
84 SMC_NLA_SYS_UNSPEC,
85 SMC_NLA_SYS_VER, /* u8 */
86 SMC_NLA_SYS_REL, /* u8 */
87 SMC_NLA_SYS_IS_ISM_V2, /* u8 */
88 SMC_NLA_SYS_LOCAL_HOST, /* string */
89 SMC_NLA_SYS_SEID, /* string */
b0539f5e 90 SMC_NLA_SYS_IS_SMCR_V2, /* u8 */
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91 __SMC_NLA_SYS_MAX,
92 SMC_NLA_SYS_MAX = __SMC_NLA_SYS_MAX - 1
93};
94
b0539f5e 95/* SMC_NLA_LGR_D_V2_COMMON and SMC_NLA_LGR_R_V2_COMMON nested attributes */
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96enum {
97 SMC_NLA_LGR_V2_VER, /* u8 */
98 SMC_NLA_LGR_V2_REL, /* u8 */
99 SMC_NLA_LGR_V2_OS, /* u8 */
100 SMC_NLA_LGR_V2_NEG_EID, /* string */
101 SMC_NLA_LGR_V2_PEER_HOST, /* string */
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102 __SMC_NLA_LGR_V2_MAX,
103 SMC_NLA_LGR_V2_MAX = __SMC_NLA_LGR_V2_MAX - 1
104};
105
106/* SMC_NLA_LGR_R_V2 nested attributes */
107enum {
108 SMC_NLA_LGR_R_V2_UNSPEC,
109 SMC_NLA_LGR_R_V2_DIRECT, /* u8 */
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110 SMC_NLA_LGR_R_V2_MAX_CONNS, /* u8 */
111 SMC_NLA_LGR_R_V2_MAX_LINKS, /* u8 */
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112 __SMC_NLA_LGR_R_V2_MAX,
113 SMC_NLA_LGR_R_V2_MAX = __SMC_NLA_LGR_R_V2_MAX - 1
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114};
115
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116/* SMC_GEN_LGR_SMCR attributes */
117enum {
118 SMC_NLA_LGR_R_UNSPEC,
119 SMC_NLA_LGR_R_ID, /* u32 */
120 SMC_NLA_LGR_R_ROLE, /* u8 */
121 SMC_NLA_LGR_R_TYPE, /* u8 */
122 SMC_NLA_LGR_R_PNETID, /* string */
123 SMC_NLA_LGR_R_VLAN_ID, /* u8 */
124 SMC_NLA_LGR_R_CONNS_NUM, /* u32 */
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125 SMC_NLA_LGR_R_V2_COMMON, /* nest */
126 SMC_NLA_LGR_R_V2, /* nest */
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127 SMC_NLA_LGR_R_NET_COOKIE, /* u64 */
128 SMC_NLA_LGR_R_PAD, /* flag */
ddefb2d2 129 SMC_NLA_LGR_R_BUF_TYPE, /* u8 */
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130 SMC_NLA_LGR_R_SNDBUF_ALLOC, /* uint */
131 SMC_NLA_LGR_R_RMB_ALLOC, /* uint */
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132 __SMC_NLA_LGR_R_MAX,
133 SMC_NLA_LGR_R_MAX = __SMC_NLA_LGR_R_MAX - 1
134};
135
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136/* SMC_GEN_LINK_SMCR attributes */
137enum {
138 SMC_NLA_LINK_UNSPEC,
139 SMC_NLA_LINK_ID, /* u8 */
140 SMC_NLA_LINK_IB_DEV, /* string */
141 SMC_NLA_LINK_IB_PORT, /* u8 */
142 SMC_NLA_LINK_GID, /* string */
143 SMC_NLA_LINK_PEER_GID, /* string */
144 SMC_NLA_LINK_CONN_CNT, /* u32 */
145 SMC_NLA_LINK_NET_DEV, /* u32 */
146 SMC_NLA_LINK_UID, /* u32 */
147 SMC_NLA_LINK_PEER_UID, /* u32 */
148 SMC_NLA_LINK_STATE, /* u32 */
149 __SMC_NLA_LINK_MAX,
150 SMC_NLA_LINK_MAX = __SMC_NLA_LINK_MAX - 1
151};
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152
153/* SMC_GEN_LGR_SMCD attributes */
154enum {
155 SMC_NLA_LGR_D_UNSPEC,
156 SMC_NLA_LGR_D_ID, /* u32 */
157 SMC_NLA_LGR_D_GID, /* u64 */
158 SMC_NLA_LGR_D_PEER_GID, /* u64 */
159 SMC_NLA_LGR_D_VLAN_ID, /* u8 */
160 SMC_NLA_LGR_D_CONNS_NUM, /* u32 */
161 SMC_NLA_LGR_D_PNETID, /* string */
162 SMC_NLA_LGR_D_CHID, /* u16 */
163 SMC_NLA_LGR_D_PAD, /* flag */
b0539f5e 164 SMC_NLA_LGR_D_V2_COMMON, /* nest */
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165 SMC_NLA_LGR_D_EXT_GID, /* u64 */
166 SMC_NLA_LGR_D_PEER_EXT_GID, /* u64 */
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167 SMC_NLA_LGR_D_SNDBUF_ALLOC, /* uint */
168 SMC_NLA_LGR_D_DMB_ALLOC, /* uint */
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169 __SMC_NLA_LGR_D_MAX,
170 SMC_NLA_LGR_D_MAX = __SMC_NLA_LGR_D_MAX - 1
171};
aaf95523 172
a3db10ef 173/* SMC_NLA_DEV_PORT nested attributes */
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174enum {
175 SMC_NLA_DEV_PORT_UNSPEC,
176 SMC_NLA_DEV_PORT_PNET_USR, /* u8 */
177 SMC_NLA_DEV_PORT_PNETID, /* string */
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178 SMC_NLA_DEV_PORT_NETDEV, /* u32 */
179 SMC_NLA_DEV_PORT_STATE, /* u8 */
180 SMC_NLA_DEV_PORT_VALID, /* u8 */
181 SMC_NLA_DEV_PORT_LNK_CNT, /* u32 */
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182 __SMC_NLA_DEV_PORT_MAX,
183 SMC_NLA_DEV_PORT_MAX = __SMC_NLA_DEV_PORT_MAX - 1
184};
185
a3db10ef 186/* SMC_GEN_DEV_SMCD and SMC_GEN_DEV_SMCR attributes */
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187enum {
188 SMC_NLA_DEV_UNSPEC,
189 SMC_NLA_DEV_USE_CNT, /* u32 */
190 SMC_NLA_DEV_IS_CRIT, /* u8 */
191 SMC_NLA_DEV_PCI_FID, /* u32 */
192 SMC_NLA_DEV_PCI_CHID, /* u16 */
193 SMC_NLA_DEV_PCI_VENDOR, /* u16 */
194 SMC_NLA_DEV_PCI_DEVICE, /* u16 */
195 SMC_NLA_DEV_PCI_ID, /* string */
196 SMC_NLA_DEV_PORT, /* nest */
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197 SMC_NLA_DEV_PORT2, /* nest */
198 SMC_NLA_DEV_IB_NAME, /* string */
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199 __SMC_NLA_DEV_MAX,
200 SMC_NLA_DEV_MAX = __SMC_NLA_DEV_MAX - 1
201};
a3db10ef 202
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203/* SMC_NLA_STATS_T_TX(RX)_RMB_SIZE nested attributes */
204/* SMC_NLA_STATS_TX(RX)PLOAD_SIZE nested attributes */
205enum {
206 SMC_NLA_STATS_PLOAD_PAD,
207 SMC_NLA_STATS_PLOAD_8K, /* u64 */
208 SMC_NLA_STATS_PLOAD_16K, /* u64 */
209 SMC_NLA_STATS_PLOAD_32K, /* u64 */
210 SMC_NLA_STATS_PLOAD_64K, /* u64 */
211 SMC_NLA_STATS_PLOAD_128K, /* u64 */
212 SMC_NLA_STATS_PLOAD_256K, /* u64 */
213 SMC_NLA_STATS_PLOAD_512K, /* u64 */
214 SMC_NLA_STATS_PLOAD_1024K, /* u64 */
215 SMC_NLA_STATS_PLOAD_G_1024K, /* u64 */
216 __SMC_NLA_STATS_PLOAD_MAX,
217 SMC_NLA_STATS_PLOAD_MAX = __SMC_NLA_STATS_PLOAD_MAX - 1
218};
219
220/* SMC_NLA_STATS_T_TX(RX)_RMB_STATS nested attributes */
221enum {
222 SMC_NLA_STATS_RMB_PAD,
223 SMC_NLA_STATS_RMB_SIZE_SM_PEER_CNT, /* u64 */
224 SMC_NLA_STATS_RMB_SIZE_SM_CNT, /* u64 */
225 SMC_NLA_STATS_RMB_FULL_PEER_CNT, /* u64 */
226 SMC_NLA_STATS_RMB_FULL_CNT, /* u64 */
227 SMC_NLA_STATS_RMB_REUSE_CNT, /* u64 */
228 SMC_NLA_STATS_RMB_ALLOC_CNT, /* u64 */
229 SMC_NLA_STATS_RMB_DGRADE_CNT, /* u64 */
230 __SMC_NLA_STATS_RMB_MAX,
231 SMC_NLA_STATS_RMB_MAX = __SMC_NLA_STATS_RMB_MAX - 1
232};
233
234/* SMC_NLA_STATS_SMCD_TECH and _SMCR_TECH nested attributes */
235enum {
236 SMC_NLA_STATS_T_PAD,
237 SMC_NLA_STATS_T_TX_RMB_SIZE, /* nest */
238 SMC_NLA_STATS_T_RX_RMB_SIZE, /* nest */
239 SMC_NLA_STATS_T_TXPLOAD_SIZE, /* nest */
240 SMC_NLA_STATS_T_RXPLOAD_SIZE, /* nest */
241 SMC_NLA_STATS_T_TX_RMB_STATS, /* nest */
242 SMC_NLA_STATS_T_RX_RMB_STATS, /* nest */
243 SMC_NLA_STATS_T_CLNT_V1_SUCC, /* u64 */
244 SMC_NLA_STATS_T_CLNT_V2_SUCC, /* u64 */
245 SMC_NLA_STATS_T_SRV_V1_SUCC, /* u64 */
246 SMC_NLA_STATS_T_SRV_V2_SUCC, /* u64 */
247 SMC_NLA_STATS_T_SENDPAGE_CNT, /* u64 */
248 SMC_NLA_STATS_T_SPLICE_CNT, /* u64 */
249 SMC_NLA_STATS_T_CORK_CNT, /* u64 */
250 SMC_NLA_STATS_T_NDLY_CNT, /* u64 */
251 SMC_NLA_STATS_T_URG_DATA_CNT, /* u64 */
252 SMC_NLA_STATS_T_RX_BYTES, /* u64 */
253 SMC_NLA_STATS_T_TX_BYTES, /* u64 */
254 SMC_NLA_STATS_T_RX_CNT, /* u64 */
255 SMC_NLA_STATS_T_TX_CNT, /* u64 */
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256 SMC_NLA_STATS_T_RX_RMB_USAGE, /* uint */
257 SMC_NLA_STATS_T_TX_RMB_USAGE, /* uint */
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258 __SMC_NLA_STATS_T_MAX,
259 SMC_NLA_STATS_T_MAX = __SMC_NLA_STATS_T_MAX - 1
260};
261
262/* SMC_GEN_STATS attributes */
263enum {
264 SMC_NLA_STATS_PAD,
265 SMC_NLA_STATS_SMCD_TECH, /* nest */
266 SMC_NLA_STATS_SMCR_TECH, /* nest */
267 SMC_NLA_STATS_CLNT_HS_ERR_CNT, /* u64 */
268 SMC_NLA_STATS_SRV_HS_ERR_CNT, /* u64 */
269 __SMC_NLA_STATS_MAX,
270 SMC_NLA_STATS_MAX = __SMC_NLA_STATS_MAX - 1
271};
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272
273/* SMC_GEN_FBACK_STATS attributes */
274enum {
275 SMC_NLA_FBACK_STATS_PAD,
276 SMC_NLA_FBACK_STATS_TYPE, /* u8 */
277 SMC_NLA_FBACK_STATS_SRV_CNT, /* u64 */
278 SMC_NLA_FBACK_STATS_CLNT_CNT, /* u64 */
279 SMC_NLA_FBACK_STATS_RSN_CODE, /* u32 */
280 SMC_NLA_FBACK_STATS_RSN_CNT, /* u16 */
281 __SMC_NLA_FBACK_STATS_MAX,
282 SMC_NLA_FBACK_STATS_MAX = __SMC_NLA_FBACK_STATS_MAX - 1
283};
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284
285/* SMC_NETLINK_UEID attributes */
286enum {
287 SMC_NLA_EID_TABLE_UNSPEC,
288 SMC_NLA_EID_TABLE_ENTRY, /* string */
289 __SMC_NLA_EID_TABLE_MAX,
290 SMC_NLA_EID_TABLE_MAX = __SMC_NLA_EID_TABLE_MAX - 1
291};
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292
293/* SMC_NETLINK_SEID attributes */
294enum {
295 SMC_NLA_SEID_UNSPEC,
296 SMC_NLA_SEID_ENTRY, /* string */
297 SMC_NLA_SEID_ENABLED, /* u8 */
298 __SMC_NLA_SEID_TABLE_MAX,
299 SMC_NLA_SEID_TABLE_MAX = __SMC_NLA_SEID_TABLE_MAX - 1
300};
a6a6fe27 301
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302/* SMC_NETLINK_HS_LIMITATION attributes */
303enum {
304 SMC_NLA_HS_LIMITATION_UNSPEC,
305 SMC_NLA_HS_LIMITATION_ENABLED, /* u8 */
306 __SMC_NLA_HS_LIMITATION_MAX,
307 SMC_NLA_HS_LIMITATION_MAX = __SMC_NLA_HS_LIMITATION_MAX - 1
308};
309
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310/* SMC socket options */
311#define SMC_LIMIT_HS 1 /* constraint on smc handshake */
312
6812baab 313#endif /* _UAPI_LINUX_SMC_H */