/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_SMC_DIAG_H_
#define _UAPI_SMC_DIAG_H_

#include <linux/types.h>
#include <linux/inet_diag.h>
#include <rdma/ib_user_verbs.h>


struct smc_diag_req {
	__u8	diag_family;
	__u8	pad[2];
	__u8	diag_ext;		
	struct inet_diag_sockid	id;
};


struct smc_diag_msg {
	__u8		diag_family;
	__u8		diag_state;
	union {
		__u8	diag_mode;
		__u8	diag_fallback; 
	};
	__u8		diag_shutdown;
	struct inet_diag_sockid id;

	__u32		diag_uid;
	__aligned_u64	diag_inode;
};


enum {
	SMC_DIAG_MODE_SMCR,
	SMC_DIAG_MODE_FALLBACK_TCP,
	SMC_DIAG_MODE_SMCD,
};



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)



struct smc_diag_cursor {
	__u16	reserved;
	__u16	wrap;
	__u32	count;
};

struct smc_diag_conninfo {
	__u32			token;		
	__u32			sndbuf_size;	
	__u32			rmbe_size;	
	__u32			peer_rmbe_size;	
	
	struct smc_diag_cursor	rx_prod;	
	struct smc_diag_cursor	rx_cons;	
	
	struct smc_diag_cursor	tx_prod;	
	struct smc_diag_cursor	tx_cons;	
	__u8			rx_prod_flags;	
	__u8			rx_conn_state_flags; 
	__u8			tx_prod_flags;	
	__u8			tx_conn_state_flags; 
	
	struct smc_diag_cursor	tx_prep;	
	struct smc_diag_cursor	tx_sent;	
	struct smc_diag_cursor	tx_fin;		
};



struct smc_diag_linkinfo {
	__u8 link_id;			
	__u8 ibname[IB_DEVICE_NAME_MAX]; 
	__u8 ibport;			
	__u8 gid[40];			
	__u8 peer_gid[40];		
};

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 {		
	__u32		linkid;		
	__aligned_u64	peer_gid;	
	__aligned_u64	my_gid;		
	__aligned_u64	token;		
	__aligned_u64	peer_token;	
};

#endif 
