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| author | Jay Fang <f.fangjian@huawei.com> | 2018-03-12 17:13:32 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-03-21 16:23:55 -0500 |
| commit | 1acfb9b7ee0b1881bb8e875b6757976e48293ec4 (patch) | |
| tree | d23a90908da7413d67775edb40d452c7e2913007 /drivers/pci/probe.c | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-0-day-1acfb9b7ee0b1881bb8e875b6757976e48293ec4.tar.gz linux-0-day-1acfb9b7ee0b1881bb8e875b6757976e48293ec4.tar.xz | |
PCI: Add decoding for 16 GT/s link speed
PCIe 4.0 defines the 16.0 GT/s link speed. Links can run at that speed
without any Linux changes, but previously their sysfs "max_link_speed" and
"current_link_speed" files contained "Unknown speed", not the expected
"16.0 GT/s".
Add decoding for the new 16 GT/s link speed.
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
[bhelgaas: add PCI_EXP_LNKCAP2_SLS_16_0GB]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Dongdong Liu <liudongdong3@huawei.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index ef5377438a1e6..86bf045f3d59b 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -592,7 +592,7 @@ const unsigned char pcie_link_speed[] = { PCIE_SPEED_2_5GT, /* 1 */ PCIE_SPEED_5_0GT, /* 2 */ PCIE_SPEED_8_0GT, /* 3 */ - PCI_SPEED_UNKNOWN, /* 4 */ + PCIE_SPEED_16_0GT, /* 4 */ PCI_SPEED_UNKNOWN, /* 5 */ PCI_SPEED_UNKNOWN, /* 6 */ PCI_SPEED_UNKNOWN, /* 7 */ |