[SCSI] qla2xxx: Enhance EEH support and enable AER support.
qla2xxx: EEH added call to pci_restore_state.
qla2xxx: EEH added delay in slot reset routine.
qla2xxx: EEH moved call to pci_save_state(), see (1).
qla2xxx: EEH additional changes for RHEL5.5.
qla2xxx: EEH added function call, removed function call, see (2).
(1) In qla2xxx_probe_one the call to pci_save_state() has been
moved to after the call to qla2xxx_request_irqs().
(2) Add call to pci_disable_pcie_error_reporting() in remove_one.
Delete call to pci_cleanup_aer_uncorrect_error_status() in pci_resume.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 8529eb1..fe34b7f 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1818,7 +1818,6 @@
/* Set EEH reset type to fundamental if required by hba */
if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
pdev->needs_freset = 1;
- pci_save_state(pdev);
}
/* Configure PCI I/O space */
@@ -1975,6 +1974,9 @@
ret = qla2x00_request_irqs(ha, rsp);
if (ret)
goto probe_init_failed;
+
+ pci_save_state(pdev);
+
/* Alloc arrays of request and response ring ptrs */
que_init:
if (!qla2x00_alloc_queues(ha)) {
@@ -2176,6 +2178,8 @@
kfree(ha);
ha = NULL;
+ pci_disable_pcie_error_reporting(pdev);
+
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
@@ -3310,6 +3314,7 @@
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
ha->flags.eeh_busy = 1;
+ qla2x00_free_irqs(vha);
pci_disable_device(pdev);
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
@@ -3363,10 +3368,19 @@
pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
struct qla_hw_data *ha = base_vha->hw;
- int rc;
+ struct rsp_que *rsp;
+ int rc, retries = 10;
DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
+ /* Workaround: qla2xxx driver which access hardware earlier
+ * needs error state to be pci_channel_io_online.
+ * Otherwise mailbox command timesout.
+ */
+ pdev->error_state = pci_channel_io_normal;
+
+ pci_restore_state(pdev);
+
if (ha->mem_only)
rc = pci_enable_device_mem(pdev);
else
@@ -3378,27 +3392,23 @@
return ret;
}
+ rsp = ha->rsp_q_map[0];
+ if (qla2x00_request_irqs(ha, rsp))
+ return ret;
+
if (ha->isp_ops->pci_config(base_vha))
return ret;
-#ifdef QL_DEBUG_LEVEL_17
- {
- uint8_t b;
- uint32_t i;
+ while (ha->flags.mbox_busy && retries--)
+ msleep(1000);
- printk("slot_reset_1: ");
- for (i = 0; i < 256; i++) {
- pci_read_config_byte(ha->pdev, i, &b);
- printk("%s%02x", (i%16) ? " " : "\n", b);
- }
- printk("\n");
- }
-#endif
set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
ret = PCI_ERS_RESULT_RECOVERED;
clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
+ pci_cleanup_aer_uncorrect_error_status(pdev);
+
DEBUG17(qla_printk(KERN_WARNING, ha,
"slot_reset-return:ret=%x\n", ret));
@@ -3422,8 +3432,6 @@
}
ha->flags.eeh_busy = 0;
-
- pci_cleanup_aer_uncorrect_error_status(pdev);
}
static struct pci_error_handlers qla2xxx_err_handler = {