kernel-ark/include/scsi/scsi_transport_srp.h
Bart Van Assche dc1bdbd9b8 IB/srp: Allow SRP disconnect through sysfs
Make it possible to disconnect the IB RC connection used by the SRP
protocol to communicate with a target.

Have the SRP transport layer create a sysfs "delete" attribute for
initiator drivers that support this functionality.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-11-30 17:40:33 -08:00

48 lines
1.1 KiB
C

#ifndef SCSI_TRANSPORT_SRP_H
#define SCSI_TRANSPORT_SRP_H
#include <linux/transport_class.h>
#include <linux/types.h>
#include <linux/mutex.h>
#define SRP_RPORT_ROLE_INITIATOR 0
#define SRP_RPORT_ROLE_TARGET 1
struct srp_rport_identifiers {
u8 port_id[16];
u8 roles;
};
struct srp_rport {
/* for initiator and target drivers */
struct device dev;
u8 port_id[16];
u8 roles;
/* for initiator drivers */
void *lld_data; /* LLD private data */
};
struct srp_function_template {
/* for initiator drivers */
void (*rport_delete)(struct srp_rport *rport);
/* for target drivers */
int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int);
int (* it_nexus_response)(struct Scsi_Host *, u64, int);
};
extern struct scsi_transport_template *
srp_attach_transport(struct srp_function_template *);
extern void srp_release_transport(struct scsi_transport_template *);
extern struct srp_rport *srp_rport_add(struct Scsi_Host *,
struct srp_rport_identifiers *);
extern void srp_rport_del(struct srp_rport *);
extern void srp_remove_host(struct Scsi_Host *);
#endif