From: Sven Schuetz <sven@xxxxxxxxxxxxxxxxxx>
The sysfs attribute /sys/class/fc_host/hostX/port_state was not set by
zfcp so far.
Now, the appropriate members of the fc_function_template struct are
set during its initialziation. The first is a boolean to show the port
state. The second is a function pointer to the function
zfcp_get_host_port_state, which reads the port state from our adapter
status bits and calls fc_host_port_state with the approriate port
state afterwards.
Signed-off-by: Sven Schuetz <sven@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
---
drivers/s390/scsi/zfcp_scsi.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
--- a/drivers/s390/scsi/zfcp_scsi.c 2008-06-04 14:27:47.000000000 +0200
+++ b/drivers/s390/scsi/zfcp_scsi.c 2008-06-04 14:28:16.000000000 +0200
@@ -704,6 +704,23 @@ zfcp_reset_fc_host_stats(struct Scsi_Hos
}
}
+static void zfcp_get_host_port_state(struct Scsi_Host *shost)
+{
+ struct zfcp_adapter *adapter =
+ (struct zfcp_adapter *)shost->hostdata[0];
+ int status = atomic_read(&adapter->status);
+
+ if ((status & ZFCP_STATUS_COMMON_RUNNING) &&
+ !(status & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED))
+ fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
+ else if (status & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED)
+ fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
+ else if (status & ZFCP_STATUS_COMMON_ERP_FAILED)
+ fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
+ else
+ fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
+}
+
static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
{
rport->dev_loss_tmo = timeout;
@@ -726,6 +743,8 @@ struct fc_function_template zfcp_transpo
.get_fc_host_stats = zfcp_get_fc_host_stats,
.reset_fc_host_stats = zfcp_reset_fc_host_stats,
.set_rport_dev_loss_tmo = zfcp_set_rport_dev_loss_tmo,
+ .get_host_port_state = zfcp_get_host_port_state,
+ .show_host_port_state = 1,
/* no functions registered for following dynamic attributes but
directly set by LLDD */
.show_host_port_type = 1,
--
--
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