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PCI: Introduce pci_pcie_type(dev) to replace pci_dev->pcie_type

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Introduce an inline function pci_pcie_type(dev) to extract PCIe
device type from pci_dev->pcie_flags_reg field, and prepare for
removing pci_dev->pcie_type.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Yijing Wang
2012-07-24 17:20:03 +08:00
committed by Bjorn Helgaas
parent 786e22885d
commit 62f87c0e31
17 changed files with 67 additions and 63 deletions
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9
drivers/pci/probe.c
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@@ -1384,9 +1384,9 @@ static int only_one_child(struct pci_bus *bus)
if (!parent || !pci_is_pcie(parent))
return 0;
if (parent->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
if (pci_pcie_type(parent) == PCI_EXP_TYPE_ROOT_PORT)
return 1;
if (parent->pcie_type == PCI_EXP_TYPE_DOWNSTREAM &&
if (pci_pcie_type(parent) == PCI_EXP_TYPE_DOWNSTREAM &&
!pci_has_flag(PCI_SCAN_ALL_PCIE_DEVS))
return 1;
return 0;
@@ -1463,7 +1463,7 @@ static int pcie_find_smpss(struct pci_dev *dev, void *data)
*/
if (dev->is_hotplug_bridge && (!list_is_singular(&dev->bus->devices) ||
(dev->bus->self &&
dev->bus->self->pcie_type != PCI_EXP_TYPE_ROOT_PORT)))
pci_pcie_type(dev->bus->self) != PCI_EXP_TYPE_ROOT_PORT)))
*smpss = 0;
if (*smpss > dev->pcie_mpss)
@@ -1479,7 +1479,8 @@ static void pcie_write_mps(struct pci_dev *dev, int mps)
if (pcie_bus_config == PCIE_BUS_PERFORMANCE) {
mps = 128 << dev->pcie_mpss;
if (dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT && dev->bus->self)
if (pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT &&
dev->bus->self)
/* For "Performance", the assumption is made that
* downstream communication will never be larger than
* the MRRS. So, the MPS only needs to be configured