diff options
| -rw-r--r-- | drivers/scsi/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 29 | ||||
| -rw-r--r-- | drivers/scsi/scsi_transport_fc_internal.h | 26 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 4 |
4 files changed, 66 insertions, 0 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 7877dfdd2322..e1efa0eac4ff 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -272,6 +272,13 @@ config SCSI_FC_ATTRS each attached FiberChannel device to sysfs, say Y. Otherwise, say N. +config SCSI_FC_TGT_ATTRS + bool "SCSI target support for FiberChannel Transport Attributes" + depends on SCSI_FC_ATTRS + depends on SCSI_TGT = y || SCSI_TGT = SCSI_FC_ATTRS + help + If you want to use SCSI target mode drivers enable this option. + config SCSI_ISCSI_ATTRS tristate "iSCSI Transport Attributes" depends on SCSI && NET diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index dd97f2652508..8df0f080997f 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -36,6 +36,7 @@ #include <net/netlink.h> #include <scsi/scsi_netlink_fc.h> #include "scsi_priv.h" +#include "scsi_transport_fc_internal.h" static int fc_queue_work(struct Scsi_Host *, struct work_struct *); static void fc_vport_sched_delete(struct work_struct *work); @@ -1956,6 +1957,19 @@ static int fc_user_scan(struct Scsi_Host *shost, uint channel, return 0; } +static int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id, + int result) +{ + struct fc_internal *i = to_fc_internal(shost->transportt); + return i->f->tsk_mgmt_response(shost, nexus, tm_id, result); +} + +static int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result) +{ + struct fc_internal *i = to_fc_internal(shost->transportt); + return i->f->it_nexus_response(shost, nexus, result); +} + struct scsi_transport_template * fc_attach_transport(struct fc_function_template *ft) { @@ -1999,6 +2013,10 @@ fc_attach_transport(struct fc_function_template *ft) i->t.user_scan = fc_user_scan; + /* target-mode drivers' functions */ + i->t.tsk_mgmt_response = fc_tsk_mgmt_response; + i->t.it_nexus_response = fc_it_nexus_response; + /* * Setup SCSI Target Attributes. */ @@ -2756,6 +2774,10 @@ fc_remote_port_delete(struct fc_rport *rport) spin_unlock_irqrestore(shost->host_lock, flags); + if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR && + shost->active_mode & MODE_TARGET) + fc_tgt_it_nexus_destroy(shost, (unsigned long)rport); + scsi_target_block(&rport->dev); /* see if we need to kill io faster than waiting for device loss */ @@ -2796,6 +2818,7 @@ fc_remote_port_rolechg(struct fc_rport *rport, u32 roles) struct fc_host_attrs *fc_host = shost_to_fc_host(shost); unsigned long flags; int create = 0; + int ret; spin_lock_irqsave(shost->host_lock, flags); if (roles & FC_PORT_ROLE_FCP_TARGET) { @@ -2804,6 +2827,12 @@ fc_remote_port_rolechg(struct fc_rport *rport, u32 roles) create = 1; } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) create = 1; + } else if (shost->active_mode & MODE_TARGET) { + ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport, + (char *)&rport->node_name); + if (ret) + printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n", + ret); } rport->roles = roles; diff --git a/drivers/scsi/scsi_transport_fc_internal.h b/drivers/scsi/scsi_transport_fc_internal.h new file mode 100644 index 000000000000..e7bfbe751c1f --- /dev/null +++ b/drivers/scsi/scsi_transport_fc_internal.h @@ -0,0 +1,26 @@ +#include <scsi/scsi_tgt.h> + +#ifdef CONFIG_SCSI_FC_TGT_ATTRS +static inline int fc_tgt_it_nexus_create(struct Scsi_Host *shost, u64 itn_id, + char *initiator) +{ + return scsi_tgt_it_nexus_create(shost, itn_id, initiator); +} + +static inline int fc_tgt_it_nexus_destroy(struct Scsi_Host *shost, u64 itn_id) +{ + return scsi_tgt_it_nexus_destroy(shost, itn_id); +} +#else +static inline int fc_tgt_it_nexus_create(struct Scsi_Host *shost, u64 itn_id, + char *initiator) +{ + return 0; +} + +static inline int fc_tgt_it_nexus_destroy(struct Scsi_Host *shost, u64 itn_id) +{ + return 0; +} + +#endif diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 616a96a3ab81..e466d886e192 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -589,6 +589,10 @@ struct fc_function_template { int (*vport_disable)(struct fc_vport *, bool); int (*vport_delete)(struct fc_vport *); + /* target-mode drivers' functions */ + int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int); + int (* it_nexus_response)(struct Scsi_Host *, u64, int); + /* allocation lengths for host-specific data */ u32 dd_fcrport_size; u32 dd_fcvport_size; |