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Filename :
smc_diag.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _SMC_DIAG_H_ #define _SMC_DIAG_H_ #include <linux/types.h> #include <linux/inet_diag.h> #include <rdma/ib_user_verbs.h> /* Request structure */ struct smc_diag_req { __u8 diag_family; __u8 pad[2]; __u8 diag_ext; /* Query extended information */ struct inet_diag_sockid id; }; /* Base info structure. It contains socket identity (addrs/ports/cookie) based * on the internal clcsock, and more SMC-related socket data */ struct smc_diag_msg { __u8 diag_family; __u8 diag_state; union { __u8 diag_mode; __u8 diag_fallback; /* the old name of the field */ }; __u8 diag_shutdown; struct inet_diag_sockid id; __u32 diag_uid; __aligned_u64 diag_inode; }; /* Mode of a connection */ enum { SMC_DIAG_MODE_SMCR, SMC_DIAG_MODE_FALLBACK_TCP, SMC_DIAG_MODE_SMCD, }; /* Extensions */ enum { SMC_DIAG_NONE, SMC_DIAG_CONNINFO, SMC_DIAG_LGRINFO, SMC_DIAG_SHUTDOWN, SMC_DIAG_DMBINFO, SMC_DIAG_FALLBACK, __SMC_DIAG_MAX, }; #define SMC_DIAG_MAX (__SMC_DIAG_MAX - 1) /* SMC_DIAG_CONNINFO */ struct smc_diag_cursor { __u16 reserved; __u16 wrap; __u32 count; }; struct smc_diag_conninfo { __u32 token; /* unique connection id */ __u32 sndbuf_size; /* size of send buffer */ __u32 rmbe_size; /* size of RMB element */ __u32 peer_rmbe_size; /* size of peer RMB element */ /* local RMB element cursors */ struct smc_diag_cursor rx_prod; /* received producer cursor */ struct smc_diag_cursor rx_cons; /* received consumer cursor */ /* peer RMB element cursors */ struct smc_diag_cursor tx_prod; /* sent producer cursor */ struct smc_diag_cursor tx_cons; /* sent consumer cursor */ __u8 rx_prod_flags; /* received producer flags */ __u8 rx_conn_state_flags; /* recvd connection flags*/ __u8 tx_prod_flags; /* sent producer flags */ __u8 tx_conn_state_flags; /* sent connection flags*/ /* send buffer cursors */ struct smc_diag_cursor tx_prep; /* prepared to be sent cursor */ struct smc_diag_cursor tx_sent; /* sent cursor */ struct smc_diag_cursor tx_fin; /* confirmed sent cursor */ }; /* SMC_DIAG_LINKINFO */ struct smc_diag_linkinfo { __u8 link_id; /* link identifier */ __u8 ibname[IB_DEVICE_NAME_MAX]; /* name of the RDMA device */ __u8 ibport; /* RDMA device port number */ __u8 gid[40]; /* local GID */ __u8 peer_gid[40]; /* peer GID */ }; struct smc_diag_lgrinfo { struct smc_diag_linkinfo lnk[1]; __u8 role; }; struct smc_diag_fallback { __u32 reason; __u32 peer_diagnosis; }; struct smcd_diag_dmbinfo { /* SMC-D Socket internals */ __u32 linkid; /* Link identifier */ __aligned_u64 peer_gid; /* Peer GID */ __aligned_u64 my_gid; /* My GID */ __aligned_u64 token; /* Token of DMB */ __aligned_u64 peer_token; /* Token of remote DMBE */ }; #endif /* _SMC_DIAG_H_ */