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| author | Sven Schuetz <sven@linux.vnet.ibm.com> | 2008-06-10 18:20:59 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-12 08:22:26 -0500 |
| commit | 85a82392fe6fe7620d8fe0eb694f926cefe62e1f (patch) | |
| tree | f05a7ad547ca8eed52fa4cca1a424a881b7b733b /drivers/s390/scsi | |
| parent | 553448f6c4838a1e4bed2bc9301c748278d7d9ce (diff) | |
| download | kernel-crypto-85a82392fe6fe7620d8fe0eb694f926cefe62e1f.tar.gz kernel-crypto-85a82392fe6fe7620d8fe0eb694f926cefe62e1f.tar.xz kernel-crypto-85a82392fe6fe7620d8fe0eb694f926cefe62e1f.zip | |
[SCSI] zfcp: Add port_state attribute to sysfs
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@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/s390/scsi')
| -rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index a96e5c3b946..446fb1da25d 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -704,6 +704,23 @@ zfcp_reset_fc_host_stats(struct Scsi_Host *shost) } } +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_transport_functions = { .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, |