diff options
| author |   Keith Busch <keith.busch@intel.com> | 2016-05-03 09:58:11 -0500 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2016-05-03 09:58:11 -0500 |
| commit | 6d81417da8720b393f670de9cce03a3642ea9a30 (patch) | |
| tree | fd65db1a902ba99f3e5bef60a7e2ac02967e4aba /drivers/pci | |
| parent | Linux 4.6-rc2 (diff) | |
| download | linux-dev-6d81417da8720b393f670de9cce03a3642ea9a30.tar.xz linux-dev-6d81417da8720b393f670de9cce03a3642ea9a30.zip | |
PCI: Widen portdrv service type from 4 bits to 8 bits
The names of port service devices previously used one nibble to encode the
port type and another nibble to encode the service type. We're about to
add a fifth service type, so change device names to use one *byte* to
encode the service type.
For example, a hotplug port service on a downstream bridge was previously
called "pcie24" and is now called "pcie204". The "2" encodes the device
type (PCI_EXP_TYPE_DOWNSTREAM - 4), and the "4" (now "04") encodes the
service (PCIE_PORT_SERVICE_HP).
Based on Lukas Wunner's patch:
https://github.com/l1k/linux/commit/b688d6e4873ab082e5916b1a993bc1d38c6f4178
[bhelgaas: split to separate patch, expand changelog]
Based-on-patch-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/portdrv.h | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index d525548404d6..63cb2ef9c5ae 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -18,7 +18,7 @@ */ #define PCIE_PORT_MAX_MSIX_ENTRIES 32 -#define get_descriptor_id(type, service) (((type - 4) << 4) | service) +#define get_descriptor_id(type, service) (((type - 4) << 8) | service) extern struct bus_type pcie_port_bus_type; int pcie_port_device_register(struct pci_dev *dev); diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 88122dc2e1b1..94d3b82415c1 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -338,7 +338,7 @@ static int pcie_device_init(struct pci_dev *pdev, int service, int irq) device = &pcie->device; device->bus = &pcie_port_bus_type; device->release = release_pcie_device; /* callback to free pcie dev */ - dev_set_name(device, "%s:pcie%02x", + dev_set_name(device, "%s:pcie%03x", pci_name(pdev), get_descriptor_id(pci_pcie_type(pdev), service)); device->parent = &pdev->dev; |