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Commit 4ce85c8c authored by Chuck Lever's avatar Chuck Lever Committed by J. Bruce Fields
Browse files

nfsd: Update NFS server comments related to RDMA support 



The server does indeed now support NFSv4.1 on RDMA transports. It
does not support shifting an RDMA-capable TCP transport (such as
iWARP) to RDMA mode.

Reported-by: default avatarShirley Ma <shirley.ma@oracle.com>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 8edf4b02

fs/nfsd/nfs4state.c

+2 −3
Original line number Diff line number Diff line
@@ -2711,10 +2711,9 @@ nfsd4_create_session(struct svc_rqst *rqstp, 
		goto out_free_conn;

	}

	status = nfs_ok;

	/*

	 * We do not support RDMA or persistent sessions

	 */

	/* Persistent sessions are not supported */

	cr_ses->flags &= ~SESSION4_PERSIST;

	/* Upshifting from TCP to RDMA is not supported */

	cr_ses->flags &= ~SESSION4_RDMA;



	init_session(rqstp, new, conf, cr_ses);

fs/nfsd/nfs4xdr.c

+1 −1
Original line number Diff line number Diff line
@@ -3063,7 +3063,7 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp, 
		p = xdr_encode_opaque_fixed(p, bcts->sessionid.data,

						NFS4_MAX_SESSIONID_LEN);

		*p++ = cpu_to_be32(bcts->dir);

		/* Sorry, we do not yet support RDMA over 4.1: */

		/* Upshifting from TCP to RDMA is not supported */

		*p++ = cpu_to_be32(0);

	}

	return nfserr;