* Type of names:
* b<number> — BCMA bus core number
* c<bus_id> — CCW bus group name, without leading zeros [s390]
- * o<index>[d<dev_port>] — on-board device index number
- * s<slot>[f<function>][d<dev_port>] — hotplug slot index number
+ * o<index>[n<phys_port_name>|d<dev_port>]
+ * — on-board device index number
+ * s<slot>[f<function>][n<phys_port_name>|d<dev_port>]
+ * — hotplug slot index number
* x<MAC> — MAC address
- * [P<domain>]p<bus>s<slot>[f<function>][d<dev_port>]
+ * [P<domain>]p<bus>s<slot>[f<function>][n<phys_port_name>|d<dev_port>]
* — PCI geographical location
* [P<domain>]p<bus>s<slot>[f<function>][u<port>][..][c<config>][i<interface>]
* — USB port number chain
unsigned dev_port = 0;
size_t l;
char *s;
- const char *attr;
+ const char *attr, *port_name;
int idx;
/* ACPI _DSM — device specific method for naming a PCI or PCI Express device */
if (attr)
dev_port = strtol(attr, NULL, 10);
+ /* kernel provided front panel port name for multiple port PCI device */
+ port_name = udev_device_get_sysattr_value(dev, "phys_port_name");
+
s = names->pci_onboard;
l = sizeof(names->pci_onboard);
l = strpcpyf(&s, l, "o%d", idx);
- if (dev_port > 0)
+ if (port_name)
+ l = strpcpyf(&s, l, "n%s", port_name);
+ else if (dev_port > 0)
l = strpcpyf(&s, l, "d%d", dev_port);
if (l == 0)
names->pci_onboard[0] = '\0';
unsigned domain, bus, slot, func, dev_port = 0;
size_t l;
char *s;
- const char *attr;
+ const char *attr, *port_name;
struct udev_device *pci = NULL;
char slots[256], str[256];
_cleanup_closedir_ DIR *dir = NULL;
if (attr)
dev_port = strtol(attr, NULL, 10);
+ /* kernel provided front panel port name for multiple port PCI device */
+ port_name = udev_device_get_sysattr_value(dev, "phys_port_name");
+
/* compose a name based on the raw kernel's PCI bus, slot numbers */
s = names->pci_path;
l = sizeof(names->pci_path);
l = strpcpyf(&s, l, "p%us%u", bus, slot);
if (func > 0 || is_pci_multifunction(names->pcidev))
l = strpcpyf(&s, l, "f%u", func);
- if (dev_port > 0)
+ if (port_name)
+ l = strpcpyf(&s, l, "n%s", port_name);
+ else if (dev_port > 0)
l = strpcpyf(&s, l, "d%u", dev_port);
if (l == 0)
names->pci_path[0] = '\0';
l = strpcpyf(&s, l, "s%d", hotplug_slot);
if (func > 0 || is_pci_multifunction(names->pcidev))
l = strpcpyf(&s, l, "f%d", func);
- if (dev_port > 0)
+ if (port_name)
+ l = strpcpyf(&s, l, "n%s", port_name);
+ else if (dev_port > 0)
l = strpcpyf(&s, l, "d%d", dev_port);
if (l == 0)
names->pci_slot[0] = '\0';