redonkable/alistair23-linux
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[SCSI] qla2xxx: Clear any stale login-states during an adapter reset.

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By not clearing the 'login needed' nor 'login outstanding' states
for an fcport after a big-hammer (adapter reset), the driver may
not properly perform a PLOGI/PRLI sequence (and lose visibility
to the rport) during a follow-on SNS scan.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Andrew Vasquez 2011-02-23 15:27:13 -08:00 committed by James Bottomley
parent 7a78ceda1c
commit 6aef87bea9
1 changed files with 17 additions and 0 deletions
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17
drivers/scsi/qla2xxx/qla_init.c
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@ -3943,6 +3943,7 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *vp;
unsigned long flags;
fc_port_t *fcport;
vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
@ -3978,6 +3979,22 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
LOOP_DOWN_TIME);
}
/* Clear all async request states across all VPs. */
list_for_each_entry(fcport, &vha->vp_fcports, list)
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
spin_lock_irqsave(&ha->vport_slock, flags);
list_for_each_entry(vp, &ha->vp_list, list) {
atomic_inc(&vp->vref_count);
spin_unlock_irqrestore(&ha->vport_slock, flags);
list_for_each_entry(fcport, &vp->vp_fcports, list)
fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
spin_lock_irqsave(&ha->vport_slock, flags);
atomic_dec(&vp->vref_count);
}
spin_unlock_irqrestore(&ha->vport_slock, flags);
if (!ha->flags.eeh_busy) {
/* Make sure for ISP 82XX IO DMA is complete */
if (IS_QLA82XX(ha))