1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_SMC_DIAG_H_ 3*4882a593Smuzhiyun #define _UAPI_SMC_DIAG_H_ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun #include <linux/inet_diag.h> 7*4882a593Smuzhiyun #include <rdma/ib_user_verbs.h> 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* Request structure */ 10*4882a593Smuzhiyun struct smc_diag_req { 11*4882a593Smuzhiyun __u8 diag_family; 12*4882a593Smuzhiyun __u8 pad[2]; 13*4882a593Smuzhiyun __u8 diag_ext; /* Query extended information */ 14*4882a593Smuzhiyun struct inet_diag_sockid id; 15*4882a593Smuzhiyun }; 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* Base info structure. It contains socket identity (addrs/ports/cookie) based 18*4882a593Smuzhiyun * on the internal clcsock, and more SMC-related socket data 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun struct smc_diag_msg { 21*4882a593Smuzhiyun __u8 diag_family; 22*4882a593Smuzhiyun __u8 diag_state; 23*4882a593Smuzhiyun union { 24*4882a593Smuzhiyun __u8 diag_mode; 25*4882a593Smuzhiyun __u8 diag_fallback; /* the old name of the field */ 26*4882a593Smuzhiyun }; 27*4882a593Smuzhiyun __u8 diag_shutdown; 28*4882a593Smuzhiyun struct inet_diag_sockid id; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun __u32 diag_uid; 31*4882a593Smuzhiyun __aligned_u64 diag_inode; 32*4882a593Smuzhiyun }; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* Mode of a connection */ 35*4882a593Smuzhiyun enum { 36*4882a593Smuzhiyun SMC_DIAG_MODE_SMCR, 37*4882a593Smuzhiyun SMC_DIAG_MODE_FALLBACK_TCP, 38*4882a593Smuzhiyun SMC_DIAG_MODE_SMCD, 39*4882a593Smuzhiyun }; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* Extensions */ 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun enum { 44*4882a593Smuzhiyun SMC_DIAG_NONE, 45*4882a593Smuzhiyun SMC_DIAG_CONNINFO, 46*4882a593Smuzhiyun SMC_DIAG_LGRINFO, 47*4882a593Smuzhiyun SMC_DIAG_SHUTDOWN, 48*4882a593Smuzhiyun SMC_DIAG_DMBINFO, 49*4882a593Smuzhiyun SMC_DIAG_FALLBACK, 50*4882a593Smuzhiyun __SMC_DIAG_MAX, 51*4882a593Smuzhiyun }; 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #define SMC_DIAG_MAX (__SMC_DIAG_MAX - 1) 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun /* SMC_DIAG_CONNINFO */ 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun struct smc_diag_cursor { 58*4882a593Smuzhiyun __u16 reserved; 59*4882a593Smuzhiyun __u16 wrap; 60*4882a593Smuzhiyun __u32 count; 61*4882a593Smuzhiyun }; 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun struct smc_diag_conninfo { 64*4882a593Smuzhiyun __u32 token; /* unique connection id */ 65*4882a593Smuzhiyun __u32 sndbuf_size; /* size of send buffer */ 66*4882a593Smuzhiyun __u32 rmbe_size; /* size of RMB element */ 67*4882a593Smuzhiyun __u32 peer_rmbe_size; /* size of peer RMB element */ 68*4882a593Smuzhiyun /* local RMB element cursors */ 69*4882a593Smuzhiyun struct smc_diag_cursor rx_prod; /* received producer cursor */ 70*4882a593Smuzhiyun struct smc_diag_cursor rx_cons; /* received consumer cursor */ 71*4882a593Smuzhiyun /* peer RMB element cursors */ 72*4882a593Smuzhiyun struct smc_diag_cursor tx_prod; /* sent producer cursor */ 73*4882a593Smuzhiyun struct smc_diag_cursor tx_cons; /* sent consumer cursor */ 74*4882a593Smuzhiyun __u8 rx_prod_flags; /* received producer flags */ 75*4882a593Smuzhiyun __u8 rx_conn_state_flags; /* recvd connection flags*/ 76*4882a593Smuzhiyun __u8 tx_prod_flags; /* sent producer flags */ 77*4882a593Smuzhiyun __u8 tx_conn_state_flags; /* sent connection flags*/ 78*4882a593Smuzhiyun /* send buffer cursors */ 79*4882a593Smuzhiyun struct smc_diag_cursor tx_prep; /* prepared to be sent cursor */ 80*4882a593Smuzhiyun struct smc_diag_cursor tx_sent; /* sent cursor */ 81*4882a593Smuzhiyun struct smc_diag_cursor tx_fin; /* confirmed sent cursor */ 82*4882a593Smuzhiyun }; 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun /* SMC_DIAG_LINKINFO */ 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun struct smc_diag_linkinfo { 87*4882a593Smuzhiyun __u8 link_id; /* link identifier */ 88*4882a593Smuzhiyun __u8 ibname[IB_DEVICE_NAME_MAX]; /* name of the RDMA device */ 89*4882a593Smuzhiyun __u8 ibport; /* RDMA device port number */ 90*4882a593Smuzhiyun __u8 gid[40]; /* local GID */ 91*4882a593Smuzhiyun __u8 peer_gid[40]; /* peer GID */ 92*4882a593Smuzhiyun }; 93*4882a593Smuzhiyun 94*4882a593Smuzhiyun struct smc_diag_lgrinfo { 95*4882a593Smuzhiyun struct smc_diag_linkinfo lnk[1]; 96*4882a593Smuzhiyun __u8 role; 97*4882a593Smuzhiyun }; 98*4882a593Smuzhiyun 99*4882a593Smuzhiyun struct smc_diag_fallback { 100*4882a593Smuzhiyun __u32 reason; 101*4882a593Smuzhiyun __u32 peer_diagnosis; 102*4882a593Smuzhiyun }; 103*4882a593Smuzhiyun 104*4882a593Smuzhiyun struct smcd_diag_dmbinfo { /* SMC-D Socket internals */ 105*4882a593Smuzhiyun __u32 linkid; /* Link identifier */ 106*4882a593Smuzhiyun __aligned_u64 peer_gid; /* Peer GID */ 107*4882a593Smuzhiyun __aligned_u64 my_gid; /* My GID */ 108*4882a593Smuzhiyun __aligned_u64 token; /* Token of DMB */ 109*4882a593Smuzhiyun __aligned_u64 peer_token; /* Token of remote DMBE */ 110*4882a593Smuzhiyun }; 111*4882a593Smuzhiyun 112*4882a593Smuzhiyun #endif /* _UAPI_SMC_DIAG_H_ */ 113