[PATCH 3/4] PCI, sysfs: Add pcie attrs for pcie device under pci dev dir.

[Dirk Gouders]

Will put link_disable and link_retrain

Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
 drivers/pci/Makefile     |  2 +-
 drivers/pci/pci-sysfs.c  |  1 +
 drivers/pci/pci.h        |  1 +
 drivers/pci/pcie-sysfs.c | 23 +++++++++++++++++++++++
 4 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 drivers/pci/pcie-sysfs.c

diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index eab9feb..43523dd 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -4,7 +4,7 @@
 
 obj-y		+= access.o bus.o probe.o host-bridge.o remove.o pci.o \
 			pci-driver.o search.o pci-sysfs.o rom.o setup-res.o \
-			irq.o vpd.o setup-bus.o pcie-link.o vc.o
+			irq.o vpd.o setup-bus.o pcie-link.o pcie-sysfs.o vc.o
 obj-$(CONFIG_PROC_FS) += proc.o
 obj-$(CONFIG_SYSFS) += slot.o
 
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 9ff0a90..6f20e5d 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1566,6 +1566,7 @@ static struct attribute_group pci_dev_attr_group = {
 
 static const struct attribute_group *pci_dev_attr_groups[] = {
 	&pci_dev_attr_group,
+	&pci_dev_pcie_attr_group,
 	&pci_dev_hp_attr_group,
 #ifdef CONFIG_PCI_IOV
 	&sriov_dev_attr_group,
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 0601890..cc2977c 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -152,6 +152,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
 extern const struct attribute_group *pci_dev_groups[];
 extern const struct attribute_group *pcibus_groups[];
 extern struct device_type pci_dev_type;
+extern struct attribute_group pci_dev_pcie_attr_group;
 extern const struct attribute_group *pci_bus_groups[];
 
 
diff --git a/drivers/pci/pcie-sysfs.c b/drivers/pci/pcie-sysfs.c
new file mode 100644
index 0000000..b65e065
--- /dev/null
+++ b/drivers/pci/pcie-sysfs.c
@@ -0,0 +1,23 @@
+#include <linux/kernel.h>
+#include <linux/pci.h>
+
+static struct attribute *pci_dev_pcie_dev_attrs[] = {
+       NULL,
+};
+
+static umode_t pci_dev_pcie_attrs_are_visible(struct kobject *kobj,
+                                               struct attribute *a, int n)
+{
+       struct device *dev = container_of(kobj, struct device, kobj);
+       struct pci_dev *pdev = to_pci_dev(dev);
+
+       if (!pci_is_pcie(pdev))
+               return 0;
+
+       return a->mode;
+}
+
+struct attribute_group pci_dev_pcie_attr_group = {
+       .is_visible = pci_dev_pcie_attrs_are_visible,
+       .attrs      = pci_dev_pcie_dev_attrs,
+};
-- 
2.1.0


--=-=-=
Content-Disposition: inline;
 filename=0004-PCI-Add-link_disable-in-sysfs-for-pcie-device.patch
Content-Description: patch4