PCI hotplug: add support for 5.0G link speed
Add support for PCI-E 5.0 GT/s in max_bus_speed and cur_bus_speed.
Reviewed-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 9d44669..0325d98 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -87,6 +87,7 @@
"100 MHz PCIX 533", /* 0x12 */
"133 MHz PCIX 533", /* 0x13 */
"2.5 GT/s PCI-E", /* 0x14 */
+ "5.0 GT/s PCI-E", /* 0x15 */
};
#ifdef CONFIG_HOTPLUG_PCI_CPCI
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 5281325..271f917 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -693,7 +693,10 @@
switch (lnk_cap & 0x000F) {
case 1:
- lnk_speed = PCIE_2PT5GB;
+ lnk_speed = PCIE_2_5GB;
+ break;
+ case 2:
+ lnk_speed = PCIE_5_0GB;
break;
default:
lnk_speed = PCIE_LNK_SPEED_UNKNOWN;
@@ -772,7 +775,10 @@
switch (lnk_status & PCI_EXP_LNKSTA_CLS) {
case 1:
- lnk_speed = PCIE_2PT5GB;
+ lnk_speed = PCIE_2_5GB;
+ break;
+ case 2:
+ lnk_speed = PCIE_5_0GB;
break;
default:
lnk_speed = PCIE_LNK_SPEED_UNKNOWN;
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 4391741..1b00cc3 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -62,7 +62,8 @@
};
enum pcie_link_speed {
- PCIE_2PT5GB = 0x14,
+ PCIE_2_5GB = 0x14,
+ PCIE_5_0GB = 0x15,
PCIE_LNK_SPEED_UNKNOWN = 0xFF,
};