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| author |   Keith Busch <keith.busch@intel.com> | 2018-09-20 10:27:17 -0600 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2018-10-02 16:04:40 -0500 |
| commit | f0157160b359b1d263ee9d4e0a435a7ad85bbcea (patch) | |
| tree | a33df725fb9d87cb8b006af386a77ee61d816e3e /drivers/pci/hotplug/pciehp.h | |
| parent | PCI: Unify device inaccessible (diff) | |
| download | linux-dev-f0157160b359b1d263ee9d4e0a435a7ad85bbcea.tar.xz linux-dev-f0157160b359b1d263ee9d4e0a435a7ad85bbcea.zip | |
PCI: Make link active reporting detection generic
The spec has timing requirements when waiting for a link to become active
after a conventional reset. Implement those hard delays when waiting for
an active link so pciehp and dpc drivers don't need to duplicate this.
For devices that don't support data link layer active reporting, wait the
fixed time recommended by the PCIe spec.
Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
Diffstat (limited to 'drivers/pci/hotplug/pciehp.h')
| -rw-r--r-- | drivers/pci/hotplug/pciehp.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 3740f1a759c5..75fd52571107 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -62,11 +62,6 @@ do { \ * struct controller - PCIe hotplug controller * @pcie: pointer to the controller's PCIe port service device * @slot_cap: cached copy of the Slot Capabilities register - * @link_active_reporting: cached copy of Data Link Layer Link Active Reporting - * Capable bit in Link Capabilities register; if this bit is zero, the - * Data Link Layer Link Active bit in the Link Status register will never - * be set and the driver is thus confined to wait 1 second before assuming - * the link to a hotplugged device is up and accessing it * @slot_ctrl: cached copy of the Slot Control register * @ctrl_lock: serializes writes to the Slot Control register * @cmd_started: jiffies when the Slot Control register was last written; @@ -103,7 +98,6 @@ struct controller { struct pcie_device *pcie; u32 slot_cap; /* capabilities and quirks */ - unsigned int link_active_reporting:1; u16 slot_ctrl; /* control register access */ struct mutex ctrl_lock; |