C++ (Cpp) compare_device_id Beispiele

Beispiel #1

static int find_device_iter(struct pci_dev *dev, void *data)
{
    int pos;
    u32 status;
    u32 mask;
    u16 reg16;
    int result;
    struct aer_err_info *e_info = (struct aer_err_info *)data;

    /*
     * When bus id is equal to 0, it might be a bad id
     * reported by root port.
     */
    if (!nosourceid && (PCI_BUS(e_info->id) != 0)) {
        result = compare_device_id(dev, e_info);
        if (result)
            add_error_device(e_info, dev);

        /*
         * If there is no multiple error, we stop
         * or continue based on the id comparing.
         */
        if (!e_info->multi_error_valid)
            return result;

        /*
         * If there are multiple errors and id does match,
         * We need continue to search other devices under
         * the root port. Return 0 means that.
         */
        if (result)
            return 0;
    }

    /*
     * When either
     *      1) nosourceid==y;
     *      2) bus id is equal to 0. Some ports might lose the bus
     *              id of error source id;
     *      3) There are multiple errors and prior id comparing fails;
     * We check AER status registers to find the initial reporter.
     */
    if (atomic_read(&dev->enable_cnt) == 0)
        return 0;
    pos = pci_pcie_cap(dev);
    if (!pos)
        return 0;
    /* Check if AER is enabled */
    pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, &reg16);
    if (!(reg16 & (
                PCI_EXP_DEVCTL_CERE |
                PCI_EXP_DEVCTL_NFERE |
                PCI_EXP_DEVCTL_FERE |
                PCI_EXP_DEVCTL_URRE)))
        return 0;
    pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
    if (!pos)
        return 0;

    status = 0;
    mask = 0;
    if (e_info->severity == AER_CORRECTABLE) {
        pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &status);
        pci_read_config_dword(dev, pos + PCI_ERR_COR_MASK, &mask);
        if (status & ~mask) {
            add_error_device(e_info, dev);
            goto added;
        }
    } else {
        pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
        pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_MASK, &mask);
        if (status & ~mask) {
            add_error_device(e_info, dev);
            goto added;
        }
    }

    return 0;

added:
    if (e_info->multi_error_valid)
        return 0;
    else
        return 1;
}

Beispiel #2

static int find_device_iter(struct pci_dev *dev, void *data)
{
	int pos;
	u32 status;
	u32 mask;
	u16 reg16;
	int result;
	struct aer_err_info *e_info = (struct aer_err_info *)data;

	
	if (!nosourceid && (PCI_BUS(e_info->id) != 0)) {
		result = compare_device_id(dev, e_info);
		if (result)
			add_error_device(e_info, dev);

		
		if (!e_info->multi_error_valid)
			return result;

		
		if (result)
			return 0;
	}

	
	if (atomic_read(&dev->enable_cnt) == 0)
		return 0;
	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
	if (!pos)
		return 0;
	
	pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, &reg16);
	if (!(reg16 & (
		PCI_EXP_DEVCTL_CERE |
		PCI_EXP_DEVCTL_NFERE |
		PCI_EXP_DEVCTL_FERE |
		PCI_EXP_DEVCTL_URRE)))
		return 0;
	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
	if (!pos)
		return 0;

	status = 0;
	mask = 0;
	if (e_info->severity == AER_CORRECTABLE) {
		pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &status);
		pci_read_config_dword(dev, pos + PCI_ERR_COR_MASK, &mask);
		if (status & ~mask) {
			add_error_device(e_info, dev);
			goto added;
		}
	} else {
		pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
		pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_MASK, &mask);
		if (status & ~mask) {
			add_error_device(e_info, dev);
			goto added;
		}
	}

	return 0;

added:
	if (e_info->multi_error_valid)
		return 0;
	else
		return 1;
}