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| author | Andreas Herrmann <aherrman@de.ibm.com> | 2006-05-22 18:25:56 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-05-28 12:50:17 -0400 |
| commit | 338151e066084d92d89f44311e5521ef847a50b9 (patch) | |
| tree | 5783d26710203f2c5b309530334f3dd39ca68dfc /drivers/s390 | |
| parent | 75bfc2837bbcc329193d51e8b7115184b78beae0 (diff) | |
| download | kernel_samsung_smdk4412-338151e066084d92d89f44311e5521ef847a50b9.zip kernel_samsung_smdk4412-338151e066084d92d89f44311e5521ef847a50b9.tar.gz kernel_samsung_smdk4412-338151e066084d92d89f44311e5521ef847a50b9.tar.bz2 | |
[SCSI] zfcp: make use of fc_remote_port_delete when target port is unavailable
If zfcp's port erp fails we now call fc_remote_port_delete. This helps
to avoid offlined scsi devices if scsi commands time out due to path
failures. When an adapter erp fails we call fc_remote_port_delete for
all ports on that adapter.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_erp.c | 22 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_ext.h | 2 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 7 |
3 files changed, 27 insertions, 4 deletions
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 05c47f6..4682c8b 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -3241,9 +3241,13 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, break; case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: case ZFCP_ERP_ACTION_REOPEN_PORT: + if (atomic_test_mask(ZFCP_STATUS_PORT_NO_WWPN, + &port->status)) { + zfcp_port_put(port); + break; + } + if ((result == ZFCP_ERP_SUCCEEDED) - && !atomic_test_mask(ZFCP_STATUS_PORT_NO_WWPN, - &port->status) && !port->rport) { struct fc_rport_identifiers ids; ids.node_name = port->wwnn; @@ -3264,9 +3268,23 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, port->supported_classes; } } + if ((result != ZFCP_ERP_SUCCEEDED) && port->rport) { + fc_remote_port_delete(port->rport); + port->rport = NULL; + } zfcp_port_put(port); break; case ZFCP_ERP_ACTION_REOPEN_ADAPTER: + if (result != ZFCP_ERP_SUCCEEDED) { + struct zfcp_port *port; + list_for_each_entry(port, &adapter->port_list_head, list) + if (port->rport && + !atomic_test_mask(ZFCP_STATUS_PORT_WKA, + &port->status)) { + fc_remote_port_delete(port->rport); + port->rport = NULL; + } + } zfcp_adapter_put(adapter); break; default: diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index ab38b8c..d023660 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -132,8 +132,6 @@ extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *, struct scsi_cmnd *, struct timer_list *); extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, struct timer_list *); -extern void zfcp_set_fc_host_attrs(struct zfcp_adapter *); -extern void zfcp_set_fc_rport_attrs(struct zfcp_port *); extern struct scsi_transport_template *zfcp_transport_template; extern struct fc_function_template zfcp_transport_functions; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 30e8719..46e14f2 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -800,12 +800,18 @@ zfcp_reset_fc_host_stats(struct Scsi_Host *shost) } } +static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) +{ + rport->dev_loss_tmo = timeout; +} + struct fc_function_template zfcp_transport_functions = { .show_starget_port_id = 1, .show_starget_port_name = 1, .show_starget_node_name = 1, .show_rport_supported_classes = 1, .show_rport_maxframe_size = 1, + .show_rport_dev_loss_tmo = 1, .show_host_node_name = 1, .show_host_port_name = 1, .show_host_permanent_port_name = 1, @@ -815,6 +821,7 @@ struct fc_function_template zfcp_transport_functions = { .show_host_serial_number = 1, .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, /* no functions registered for following dynamic attributes but directly set by LLDD */ .show_host_port_type = 1, |