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add some pcie debugging

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This commit is contained in:
Ralph Metzler 2019-08-12 21:40:09 +02:00
parent a19a066b39
commit 2e392cfe43
1 changed files with 44 additions and 0 deletions
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44
ddbridge/ddbridge-main.c
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@ -436,11 +436,55 @@ static const struct pci_device_id ddb_id_table[] __devinitconst = {
}; };
MODULE_DEVICE_TABLE(pci, ddb_id_table); MODULE_DEVICE_TABLE(pci, ddb_id_table);
static pci_ers_result_t ddb_pci_slot_reset(struct pci_dev *dev)
{
pr_info("pci_slot_reset\n");
return PCI_ERS_RESULT_RECOVERED;
}
static void ddb_pci_resume(struct pci_dev *dev)
{
pr_info("pci_resume\n");
}
static pci_ers_result_t ddb_pci_mmio_enabled(struct pci_dev *pdev)
{
pr_info("pci_mmio_enabled\n");
return PCI_ERS_RESULT_NEED_RESET;
}
static pci_ers_result_t ddb_pci_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
switch (state) {
case pci_channel_io_frozen:
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_perm_failure:
return PCI_ERS_RESULT_DISCONNECT;
break;
case pci_channel_io_normal:
default:
break;
}
return PCI_ERS_RESULT_NEED_RESET;
}
static const struct pci_error_handlers ddb_error = {
.error_detected = ddb_pci_error_detected,
.mmio_enabled = ddb_pci_mmio_enabled,
.slot_reset = ddb_pci_slot_reset,
.resume = ddb_pci_resume,
};
static struct pci_driver ddb_pci_driver = { static struct pci_driver ddb_pci_driver = {
.name = "ddbridge", .name = "ddbridge",
.id_table = ddb_id_table, .id_table = ddb_id_table,
.probe = ddb_probe, .probe = ddb_probe,
.remove = ddb_remove, .remove = ddb_remove,
.err_handler = &ddb_error,
}; };
static __init int module_init_ddbridge(void) static __init int module_init_ddbridge(void)