1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 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 __u8 diag_mode; 24 __u8 diag_shutdown; 25 struct inet_diag_sockid id; 26 27 __u32 diag_uid; 28 __u64 diag_inode; 29 }; 30 31 /* Mode of a connection */ 32 enum { 33 SMC_DIAG_MODE_SMCR, 34 SMC_DIAG_MODE_FALLBACK_TCP, 35 SMC_DIAG_MODE_SMCD, 36 }; 37 38 /* Extensions */ 39 40 enum { 41 SMC_DIAG_NONE, 42 SMC_DIAG_CONNINFO, 43 SMC_DIAG_LGRINFO, 44 SMC_DIAG_SHUTDOWN, 45 SMC_DIAG_DMBINFO, 46 SMC_DIAG_FALLBACK, 47 __SMC_DIAG_MAX, 48 }; 49 50 #define SMC_DIAG_MAX (__SMC_DIAG_MAX - 1) 51 52 /* SMC_DIAG_CONNINFO */ 53 54 struct smc_diag_cursor { 55 __u16 reserved; 56 __u16 wrap; 57 __u32 count; 58 }; 59 60 struct smc_diag_conninfo { 61 __u32 token; /* unique connection id */ 62 __u32 sndbuf_size; /* size of send buffer */ 63 __u32 rmbe_size; /* size of RMB element */ 64 __u32 peer_rmbe_size; /* size of peer RMB element */ 65 /* local RMB element cursors */ 66 struct smc_diag_cursor rx_prod; /* received producer cursor */ 67 struct smc_diag_cursor rx_cons; /* received consumer cursor */ 68 /* peer RMB element cursors */ 69 struct smc_diag_cursor tx_prod; /* sent producer cursor */ 70 struct smc_diag_cursor tx_cons; /* sent consumer cursor */ 71 __u8 rx_prod_flags; /* received producer flags */ 72 __u8 rx_conn_state_flags; /* recvd connection flags*/ 73 __u8 tx_prod_flags; /* sent producer flags */ 74 __u8 tx_conn_state_flags; /* sent connection flags*/ 75 /* send buffer cursors */ 76 struct smc_diag_cursor tx_prep; /* prepared to be sent cursor */ 77 struct smc_diag_cursor tx_sent; /* sent cursor */ 78 struct smc_diag_cursor tx_fin; /* confirmed sent cursor */ 79 }; 80 81 /* SMC_DIAG_LINKINFO */ 82 83 struct smc_diag_linkinfo { 84 __u8 link_id; /* link identifier */ 85 __u8 ibname[IB_DEVICE_NAME_MAX]; /* name of the RDMA device */ 86 __u8 ibport; /* RDMA device port number */ 87 __u8 gid[40]; /* local GID */ 88 __u8 peer_gid[40]; /* peer GID */ 89 }; 90 91 struct smc_diag_lgrinfo { 92 struct smc_diag_linkinfo lnk[1]; 93 __u8 role; 94 }; 95 96 struct smc_diag_fallback { 97 __u32 reason; 98 __u32 peer_diagnosis; 99 }; 100 101 struct smcd_diag_dmbinfo { /* SMC-D Socket internals */ 102 __u32 linkid; /* Link identifier */ 103 __u64 peer_gid; /* Peer GID */ 104 __u64 my_gid; /* My GID */ 105 __u64 token; /* Token of DMB */ 106 __u64 peer_token; /* Token of remote DMBE */ 107 }; 108 109 #endif /* _UAPI_SMC_DIAG_H_ */ 110