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/******************************************************************************

(c) 2008 NetApp.  All Rights Reserved.

NetApp provides this source code under the GPL v2 License.
The GPL v2 license is available at
http://opensource.org/licenses/gpl-license.php.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

******************************************************************************/

/*
 * Functions to create and manage the backchannel
 */

#ifndef _LINUX_SUNRPC_BC_XPRT_H
#define _LINUX_SUNRPC_BC_XPRT_H

#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/xprt.h>
#include <linux/sunrpc/sched.h>

#ifdef CONFIG_SUNRPC_BACKCHANNEL
struct rpc_rqst *xprt_lookup_bc_request(struct rpc_xprt *xprt, __be32 xid);
void xprt_complete_bc_request(struct rpc_rqst *req, uint32_t copied);
void xprt_free_bc_request(struct rpc_rqst *req);
int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
void xprt_destroy_backchannel(struct rpc_xprt *, unsigned int max_reqs);

/* Socket backchannel transport methods */
int xprt_setup_bc(struct rpc_xprt *xprt, unsigned int min_reqs);
void xprt_destroy_bc(struct rpc_xprt *xprt, unsigned int max_reqs);
void xprt_free_bc_rqst(struct rpc_rqst *req);

/*
 * Determine if a shared backchannel is in use
 */
static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
{
	if (rqstp->rq_server->sv_bc_xprt)
		return 1;
	return 0;
}
#else /* CONFIG_SUNRPC_BACKCHANNEL */
static inline int xprt_setup_backchannel(struct rpc_xprt *xprt,
					 unsigned int min_reqs)
{
	return 0;
}

static inline int svc_is_backchannel(const struct svc_rqst *rqstp)
{
	return 0;
}

static inline void xprt_free_bc_request(struct rpc_rqst *req)
{
}
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
#endif /* _LINUX_SUNRPC_BC_XPRT_H */


Filemanager

Name Type Size Permission Actions
addr.h File 4.94 KB 0644
auth.h File 7.43 KB 0644
auth_gss.h File 2.33 KB 0644
bc_xprt.h File 2.42 KB 0644
cache.h File 8.38 KB 0644
clnt.h File 7.17 KB 0644
debug.h File 2.76 KB 0644
gss_api.h File 4.56 KB 0644
gss_asn1.h File 3.11 KB 0644
gss_err.h File 5.93 KB 0644
gss_krb5.h File 11.15 KB 0644
gss_krb5_enctypes.h File 123 B 0644
metrics.h File 3.52 KB 0644
msg_prot.h File 6.23 KB 0644
rpc_pipe_fs.h File 3.92 KB 0644
rpc_rdma.h File 3.81 KB 0644
sched.h File 9.09 KB 0644
stats.h File 2.01 KB 0644
svc.h File 16.55 KB 0644
svc_rdma.h File 7.43 KB 0644
svc_xprt.h File 6.63 KB 0644
svcauth.h File 6.11 KB 0644
svcauth_gss.h File 824 B 0644
svcsock.h File 2.06 KB 0644
timer.h File 1.14 KB 0644
types.h File 497 B 0644
xdr.h File 12.73 KB 0644
xprt.h File 14.77 KB 0644
xprtmultipath.h File 2 KB 0644
xprtrdma.h File 2.9 KB 0644
xprtsock.h File 1.73 KB 0644