[SCSI] qla2xxx: Added support for quiescence mode for ISP82xx.

[pandora-kernel.git] / drivers / scsi / qla2xxx / qla_os.c

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 2c0876c..df2c1e7 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3386,6 +3386,21 @@ qla2x00_do_dpc(void *data)
                        clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
                }
 
+               if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
+                       DEBUG(printk(KERN_INFO "scsi(%ld): dpc: sched "
+                           "qla2x00_quiesce_needed ha = %p\n",
+                           base_vha->host_no, ha));
+                       qla82xx_device_state_handler(base_vha);
+                       clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags);
+                       if (!ha->flags.quiesce_owner) {
+                               qla2x00_perform_loop_resync(base_vha);
+
+                               qla82xx_idc_lock(ha);
+                               qla82xx_clear_qsnt_ready(base_vha);
+                               qla82xx_idc_unlock(ha);
+                       }
+               }
+
                if (test_and_clear_bit(RESET_MARKER_NEEDED,
                                                        &base_vha->dpc_flags) &&
                    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
@@ -3589,13 +3604,16 @@ qla2x00_timer(scsi_qla_host_t *vha)
                return;
        }
 
-       if (IS_QLA82XX(ha))
-               qla82xx_watchdog(vha);
-
        /* Hardware read to raise pending EEH errors during mailbox waits. */
        if (!pci_channel_offline(ha->pdev))
                pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
 
+       if (IS_QLA82XX(ha)) {
+               if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
+                       start_dpc++;
+               qla82xx_watchdog(vha);
+       }
+
        /* Loop down handler. */
        if (atomic_read(&vha->loop_down_timer) > 0 &&
            !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))