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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2009-07-29 09:39:58 +0400
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-09-10 00:29:50 +0400
commit825c423a35a80a8fd66398a3f9bde7f0b0187a76 (patch)
tree581b7f199a5fe0543a78139e18f05520964f2488
parent6ed6a8dc83dc37d30c8a7ff2eae2ed054e34c91b (diff)
downloadlinux-825c423a35a80a8fd66398a3f9bde7f0b0187a76.tar.xz
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>
-rw-r--r--drivers/pci/hotplug/pci_hotplug_core.c1
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c10
-rw-r--r--include/linux/pci_hotplug.h3
3 files changed, 11 insertions, 3 deletions
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index 9d44669bf098..0325d989bb46 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -87,6 +87,7 @@ static char *pci_bus_speed_strings[] = {
"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 52813257e5bf..271f917b6f2c 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -693,7 +693,10 @@ static int hpc_get_max_lnk_speed(struct slot *slot, enum pci_bus_speed *value)
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 @@ static int hpc_get_cur_lnk_speed(struct slot *slot, enum pci_bus_speed *value)
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 4391741b99dc..1b00cc3177fc 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -62,7 +62,8 @@ enum pcie_link_width {
};
enum pcie_link_speed {
- PCIE_2PT5GB = 0x14,
+ PCIE_2_5GB = 0x14,
+ PCIE_5_0GB = 0x15,
PCIE_LNK_SPEED_UNKNOWN = 0xFF,
};