diff options
| -rw-r--r-- | Documentation/ABI/stable/sysfs-transport-srp | 7 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 10 | ||||
| -rw-r--r-- | drivers/scsi/scsi_transport_srp.c | 22 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_srp.h | 8 |
4 files changed, 46 insertions, 1 deletions
diff --git a/Documentation/ABI/stable/sysfs-transport-srp b/Documentation/ABI/stable/sysfs-transport-srp index 7b0d4a5350f1..b36fb0dc13c8 100644 --- a/Documentation/ABI/stable/sysfs-transport-srp +++ b/Documentation/ABI/stable/sysfs-transport-srp @@ -1,3 +1,10 @@ +What: /sys/class/srp_remote_ports/port-<h>:<n>/delete +Date: June 1, 2012 +KernelVersion: 3.7 +Contact: linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org +Description: Instructs an SRP initiator to disconnect from a target and to + remove all LUNs imported from that target. + What: /sys/class/srp_remote_ports/port-<h>:<n>/port_id Date: June 27, 2007 KernelVersion: 2.6.24 diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 84d9298ed989..d5088ce78290 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -549,6 +549,13 @@ static void srp_remove_work(struct work_struct *work) srp_remove_target(target); } +static void srp_rport_delete(struct srp_rport *rport) +{ + struct srp_target_port *target = rport->lld_data; + + srp_queue_remove_work(target); +} + static int srp_connect_target(struct srp_target_port *target) { int retries = 3; @@ -1958,6 +1965,8 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target) return PTR_ERR(rport); } + rport->lld_data = target; + spin_lock(&host->target_lock); list_add_tail(&target->list, &host->target_list); spin_unlock(&host->target_lock); @@ -2524,6 +2533,7 @@ static void srp_remove_one(struct ib_device *device) } static struct srp_function_template ib_srp_transport_functions = { + .rport_delete = srp_rport_delete, }; static int __init srp_init_module(void) diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c index 0d85f797141f..f379c7f3034c 100644 --- a/drivers/scsi/scsi_transport_srp.c +++ b/drivers/scsi/scsi_transport_srp.c @@ -38,7 +38,7 @@ struct srp_host_attrs { #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data) #define SRP_HOST_ATTRS 0 -#define SRP_RPORT_ATTRS 2 +#define SRP_RPORT_ATTRS 3 struct srp_internal { struct scsi_transport_template t; @@ -116,6 +116,24 @@ show_srp_rport_roles(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR(roles, S_IRUGO, show_srp_rport_roles, NULL); +static ssize_t store_srp_rport_delete(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + struct Scsi_Host *shost = dev_to_shost(dev); + struct srp_internal *i = to_srp_internal(shost->transportt); + + if (i->f->rport_delete) { + i->f->rport_delete(rport); + return count; + } else { + return -ENOSYS; + } +} + +static DEVICE_ATTR(delete, S_IWUSR, NULL, store_srp_rport_delete); + static void srp_rport_release(struct device *dev) { struct srp_rport *rport = dev_to_rport(dev); @@ -309,6 +327,8 @@ srp_attach_transport(struct srp_function_template *ft) count = 0; i->rport_attrs[count++] = &dev_attr_port_id; i->rport_attrs[count++] = &dev_attr_roles; + if (ft->rport_delete) + i->rport_attrs[count++] = &dev_attr_delete; i->rport_attrs[count++] = NULL; BUG_ON(count > ARRAY_SIZE(i->rport_attrs)); diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h index 9c60ca1c08c5..ff0f04ac91aa 100644 --- a/include/scsi/scsi_transport_srp.h +++ b/include/scsi/scsi_transport_srp.h @@ -14,13 +14,21 @@ struct srp_rport_identifiers { }; 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); |