[SCSI] zfcp: Remove some port flags
PORT_PHYS_CLOSING is only set and cleared, but not actually used
for status checking.
PORT_INVALID_WWPN is set when the GID_PN request does not return
a d_id for a remote port, e.g. when a remote port has been
unplugged. For this case, the d_id is zero. In the erp we can
check the d_id and use the normal escalation procedure that gives
up after three retries and remove the special case.
PORT_NO_WWPN is unused: Each port in the remote port list has a
valid wwpn. The WKA ports are now tracked outside the port
list. Remove the PORT_NO_WWPN flag, since this is no longer set
for any port.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 387a3af..aed08e7 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -777,10 +777,7 @@
static void zfcp_erp_port_strategy_clearstati(struct zfcp_port *port)
{
- atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_PORT_PHYS_CLOSING |
- ZFCP_STATUS_PORT_INVALID_WWPN,
- &port->status);
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED, &port->status);
}
static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action)
@@ -875,13 +872,8 @@
return ZFCP_ERP_CONTINUES;
}
case ZFCP_ERP_STEP_NAMESERVER_LOOKUP:
- if (!port->d_id) {
- if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) {
- zfcp_erp_port_failed(port, 26, NULL);
- return ZFCP_ERP_EXIT;
- }
+ if (!port->d_id)
return ZFCP_ERP_FAILED;
- }
return zfcp_erp_port_strategy_open_port(act);
case ZFCP_ERP_STEP_PORT_OPENING:
@@ -1269,10 +1261,6 @@
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
case ZFCP_ERP_ACTION_REOPEN_PORT:
- if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN) {
- zfcp_port_put(port);
- return;
- }
if ((result == ZFCP_ERP_SUCCEEDED) && !port->rport)
zfcp_erp_rport_register(port);
if ((result != ZFCP_ERP_SUCCEEDED) && port->rport) {