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| author | Swen Schillig <swen@vnet.ibm.com> | 2009-03-02 13:09:07 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-03-12 12:58:21 -0500 |
| commit | 24095490681d130979c18685dc0b5a308057e225 (patch) | |
| tree | c832def98ffbecfc75794370111998b4206e215d /drivers/s390 | |
| parent | 21ddaa53f92dba820a3778978e617f20ecb6ab6f (diff) | |
| download | linux-24095490681d130979c18685dc0b5a308057e225.tar.gz linux-24095490681d130979c18685dc0b5a308057e225.tar.bz2 linux-24095490681d130979c18685dc0b5a308057e225.zip | |
[SCSI] zfcp: incorrect reaction on incoming RSCN
After an error condition resolved a remote storage port was never
re-opened. The incoming RSCN was not processed accordingly due
to a misinterpreted status flag / return value combination.
Signed-off-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>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.c | 18 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 4 |
2 files changed, 7 insertions, 15 deletions
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index ec700b3c2100..49a7a90501b6 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -145,16 +145,10 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range, struct zfcp_port *port; read_lock_irqsave(&zfcp_data.config_lock, flags); - list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) { - if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_PHYS_OPEN)) - /* Try to connect to unused ports anyway. */ - zfcp_erp_port_reopen(port, - ZFCP_STATUS_COMMON_ERP_FAILED, - "fcirsc1", fsf_req); - else if ((port->d_id & range) == (elem->nport_did & range)) - /* Check connection status for connected ports */ + list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) + if ((port->d_id & range) == (elem->nport_did & range)) zfcp_test_link(port); - } + read_unlock_irqrestore(&zfcp_data.config_lock, flags); } @@ -381,8 +375,10 @@ static void zfcp_fc_adisc_handler(unsigned long data) if (!port->wwnn) port->wwnn = ls_adisc->wwnn; - if (port->wwpn != ls_adisc->wwpn) - zfcp_erp_port_reopen(port, 0, "fcadh_2", NULL); + if ((port->wwpn != ls_adisc->wwpn) || + !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) + zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, + "fcadh_2", NULL); out: zfcp_port_put(port); diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index b4c9ba085093..71c32f3ffcb7 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1161,10 +1161,6 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els) struct fsf_qtcb_bottom_support *bottom; int ret = -EIO; - if (unlikely(!(atomic_read(&els->port->status) & - ZFCP_STATUS_COMMON_UNBLOCKED))) - return -EBUSY; - spin_lock_bh(&adapter->req_q_lock); if (zfcp_fsf_req_sbal_get(adapter)) goto out; |