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1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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2 | #ifndef _UAPI_SMC_DIAG_H_ |
3 | #define _UAPI_SMC_DIAG_H_ |
4 | |
5 | #include <linux/types.h> |
6 | #include <linux/inet_diag.h> |
7 | #include <rdma/ib_user_verbs.h> |
8 | |
9 | /* Request structure */ |
10 | struct smc_diag_req { |
11 | __u8 diag_family; |
12 | __u8 pad[2]; |
13 | __u8 diag_ext; /* Query extended information */ |
14 | struct inet_diag_sockid id; |
15 | }; |
16 | |
17 | /* Base info structure. It contains socket identity (addrs/ports/cookie) based |
18 | * on the internal clcsock, and more SMC-related socket data |
19 | */ |
20 | struct smc_diag_msg { |
21 | __u8 diag_family; |
22 | __u8 diag_state; |
23 | union { |
24 | __u8 diag_mode; |
25 | __u8 diag_fallback; /* the old name of the field */ |
26 | }; |
27 | __u8 diag_shutdown; |
28 | struct inet_diag_sockid id; |
29 | |
30 | __u32 diag_uid; |
31 | __aligned_u64 diag_inode; |
32 | }; |
33 | |
34 | /* Mode of a connection */ |
35 | enum { |
36 | SMC_DIAG_MODE_SMCR, |
37 | SMC_DIAG_MODE_FALLBACK_TCP, |
38 | SMC_DIAG_MODE_SMCD, |
39 | }; |
40 | |
41 | /* Extensions */ |
42 | |
43 | enum { |
44 | SMC_DIAG_NONE, |
45 | SMC_DIAG_CONNINFO, |
46 | SMC_DIAG_LGRINFO, |
47 | SMC_DIAG_SHUTDOWN, |
48 | SMC_DIAG_DMBINFO, |
49 | SMC_DIAG_FALLBACK, |
50 | __SMC_DIAG_MAX, |
51 | }; |
52 | |
53 | #define SMC_DIAG_MAX (__SMC_DIAG_MAX - 1) |
54 | |
55 | /* SMC_DIAG_CONNINFO */ |
56 | |
57 | struct smc_diag_cursor { |
58 | __u16 reserved; |
59 | __u16 wrap; |
60 | __u32 count; |
61 | }; |
62 | |
63 | struct smc_diag_conninfo { |
64 | __u32 token; /* unique connection id */ |
65 | __u32 sndbuf_size; /* size of send buffer */ |
66 | __u32 rmbe_size; /* size of RMB element */ |
67 | __u32 peer_rmbe_size; /* size of peer RMB element */ |
68 | /* local RMB element cursors */ |
69 | struct smc_diag_cursor rx_prod; /* received producer cursor */ |
70 | struct smc_diag_cursor rx_cons; /* received consumer cursor */ |
71 | /* peer RMB element cursors */ |
72 | struct smc_diag_cursor tx_prod; /* sent producer cursor */ |
73 | struct smc_diag_cursor tx_cons; /* sent consumer cursor */ |
74 | __u8 rx_prod_flags; /* received producer flags */ |
75 | __u8 rx_conn_state_flags; /* recvd connection flags*/ |
76 | __u8 tx_prod_flags; /* sent producer flags */ |
77 | __u8 tx_conn_state_flags; /* sent connection flags*/ |
78 | /* send buffer cursors */ |
79 | struct smc_diag_cursor tx_prep; /* prepared to be sent cursor */ |
80 | struct smc_diag_cursor tx_sent; /* sent cursor */ |
81 | struct smc_diag_cursor tx_fin; /* confirmed sent cursor */ |
82 | }; |
83 | |
84 | /* SMC_DIAG_LINKINFO */ |
85 | |
86 | struct smc_diag_linkinfo { |
87 | __u8 link_id; /* link identifier */ |
88 | __u8 ibname[IB_DEVICE_NAME_MAX]; /* name of the RDMA device */ |
89 | __u8 ibport; /* RDMA device port number */ |
90 | __u8 gid[40]; /* local GID */ |
91 | __u8 peer_gid[40]; /* peer GID */ |
92 | }; |
93 | |
94 | struct smc_diag_lgrinfo { |
95 | struct smc_diag_linkinfo lnk[1]; |
96 | __u8 role; |
97 | }; |
98 | |
99 | struct smc_diag_fallback { |
100 | __u32 reason; |
101 | __u32 peer_diagnosis; |
102 | }; |
103 | |
104 | struct smcd_diag_dmbinfo { /* SMC-D Socket internals */ |
105 | __u32 linkid; /* Link identifier */ |
106 | __aligned_u64 peer_gid; /* Peer GID */ |
107 | __aligned_u64 my_gid; /* My GID */ |
108 | __aligned_u64 token; /* Token of DMB */ |
109 | __aligned_u64 peer_token; /* Token of remote DMBE */ |
110 | }; |
111 | |
112 | #endif /* _UAPI_SMC_DIAG_H_ */ |
113 |
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