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Commit 4b1b7d3b authored by Hans Wippel's avatar Hans Wippel Committed by David S. Miller
Browse files

net/smc: add SMC-D diag support 



This patch adds diag support for SMC-D.

Signed-off-by: default avatarHans Wippel <hwippel@linux.ibm.com>
Signed-off-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
Suggested-by: default avatarThomas Richter <tmricht@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 41349844

include/uapi/linux/smc_diag.h

+10 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ enum { 
	SMC_DIAG_CONNINFO,

	SMC_DIAG_LGRINFO,

	SMC_DIAG_SHUTDOWN,

	SMC_DIAG_DMBINFO,

	__SMC_DIAG_MAX,

};
@@ -83,4 +84,13 @@ struct smc_diag_lgrinfo { 
	struct smc_diag_linkinfo	lnk[1];

	__u8				role;

};



struct smcd_diag_dmbinfo {		/* SMC-D Socket internals */

	__u32 linkid;			/* Link identifier */

	__u64 peer_gid;			/* Peer GID */

	__u64 my_gid;			/* My GID */

	__u64 token;			/* Token of DMB */

	__u64 peer_token;		/* Token of remote DMBE */

};



#endif /* _UAPI_SMC_DIAG_H_ */

net/smc/smc_diag.c

+15 −0
Original line number Diff line number Diff line
@@ -156,6 +156,21 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb, 
		if (nla_put(skb, SMC_DIAG_LGRINFO, sizeof(linfo), &linfo) < 0)

			goto errout;

	}

	if (smc->conn.lgr && smc->conn.lgr->is_smcd &&

	    (req->diag_ext & (1 << (SMC_DIAG_DMBINFO - 1))) &&

	    !list_empty(&smc->conn.lgr->list)) {

		struct smc_connection *conn = &smc->conn;

		struct smcd_diag_dmbinfo dinfo = {

			.linkid = *((u32 *)conn->lgr->id),

			.peer_gid = conn->lgr->peer_gid,

			.my_gid = conn->lgr->smcd->local_gid,

			.token = conn->rmb_desc->token,

			.peer_token = conn->peer_token

		};



		if (nla_put(skb, SMC_DIAG_DMBINFO, sizeof(dinfo), &dinfo) < 0)

			goto errout;

	}



	nlmsg_end(skb, nlh);

	return 0;