static ssize_t show_failed_reconnects(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
return sprintf(buf, "%d\n", rport->failed_reconnects);
}
static ssize_t show_reconnect_delay(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
return srp_show_tmo(buf, rport->reconnect_delay);
}
static ssize_t store_reconnect_delay(struct device *dev,
struct device_attribute *attr,
const char *buf, const size_t count)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
int res, delay;
res = srp_parse_tmo(&delay, buf);
if (res)
goto out;
res = srp_tmo_valid(delay, rport->fast_io_fail_tmo,
rport->dev_loss_tmo);
if (res)
goto out;
if (rport->reconnect_delay <= 0 && delay > 0 &&
rport->state != SRP_RPORT_RUNNING) {
queue_delayed_work(system_long_wq, &rport->reconnect_work,
delay * HZ);
} else if (delay <= 0) {
cancel_delayed_work(&rport->reconnect_work);
}
rport->reconnect_delay = delay;
res = count;
out:
return res;
}
static ssize_t
show_srp_rport_id(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
return sprintf(buf, SRP_PID_FMT "\n", SRP_PID(rport));
}
static ssize_t
show_srp_rport_id(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
return sprintf(buf, "%16phC\n", rport->port_id);
}
static ssize_t show_srp_rport_fast_io_fail_tmo(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
return srp_show_tmo(buf, rport->fast_io_fail_tmo);
}
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 ssize_t
show_srp_rport_roles(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
int i;
char *name = NULL;
for (i = 0; i < ARRAY_SIZE(srp_rport_role_names); i++)
if (srp_rport_role_names[i].value == rport->roles) {
name = srp_rport_role_names[i].name;
break;
}
return sprintf(buf, "%s\n", name ? : "unknown");
}
static ssize_t show_srp_rport_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
static const char *const state_name[] = {
[SRP_RPORT_RUNNING] = "running",
[SRP_RPORT_BLOCKED] = "blocked",
[SRP_RPORT_FAIL_FAST] = "fail-fast",
[SRP_RPORT_LOST] = "lost",
};
struct srp_rport *rport = transport_class_to_srp_rport(dev);
enum srp_rport_state state = rport->state;
return sprintf(buf, "%s\n",
(unsigned)state < ARRAY_SIZE(state_name) ?
state_name[state] : "???");
}
static ssize_t store_srp_rport_dev_loss_tmo(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct srp_rport *rport = transport_class_to_srp_rport(dev);
int res;
int dev_loss_tmo;
res = srp_parse_tmo(&dev_loss_tmo, buf);
if (res)
goto out;
res = srp_tmo_valid(rport->reconnect_delay, rport->fast_io_fail_tmo,
dev_loss_tmo);
if (res)
goto out;
rport->dev_loss_tmo = dev_loss_tmo;
res = count;
out:
return res;
}
static inline struct srp_rport *shost_to_rport(struct Scsi_Host *shost)
{
return transport_class_to_srp_rport(&shost->shost_gendev);
}
