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PCI: Make current and maximum bus speeds part of the PCI core

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Move the max_bus_speed and cur_bus_speed into the pci_bus.  Expose the
values through the PCI slot driver instead of the hotplug slot driver.
Update all the hotplug drivers to use the pci_bus instead of their own
data structures.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Matthew Wilcox
2009-12-13 08:11:32 -05:00
committed by Jesse Barnes
parent 536c8cb49e
commit 3749c51ac6
17 changed files with 246 additions and 498 deletions
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54
drivers/pci/slot.c
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@@ -47,6 +47,54 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf)
slot->number);
}
/* these strings match up with the values in pci_bus_speed */
static char *pci_bus_speed_strings[] = {
"33 MHz PCI", /* 0x00 */
"66 MHz PCI", /* 0x01 */
"66 MHz PCI-X", /* 0x02 */
"100 MHz PCI-X", /* 0x03 */
"133 MHz PCI-X", /* 0x04 */
NULL, /* 0x05 */
NULL, /* 0x06 */
NULL, /* 0x07 */
NULL, /* 0x08 */
"66 MHz PCI-X 266", /* 0x09 */
"100 MHz PCI-X 266", /* 0x0a */
"133 MHz PCI-X 266", /* 0x0b */
NULL, /* 0x0c */
NULL, /* 0x0d */
NULL, /* 0x0e */
NULL, /* 0x0f */
NULL, /* 0x10 */
"66 MHz PCI-X 533", /* 0x11 */
"100 MHz PCI-X 533", /* 0x12 */
"133 MHz PCI-X 533", /* 0x13 */
"2.5 GT/s PCIe", /* 0x14 */
"5.0 GT/s PCIe", /* 0x15 */
};
static ssize_t bus_speed_read(enum pci_bus_speed speed, char *buf)
{
const char *speed_string;
if (speed < ARRAY_SIZE(pci_bus_speed_strings))
speed_string = pci_bus_speed_strings[speed];
else
speed_string = "Unknown";
return sprintf(buf, "%s\n", speed_string);
}
static ssize_t max_speed_read_file(struct pci_slot *slot, char *buf)
{
return bus_speed_read(slot->bus->max_bus_speed, buf);
}
static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf)
{
return bus_speed_read(slot->bus->cur_bus_speed, buf);
}
static void pci_slot_release(struct kobject *kobj)
{
struct pci_dev *dev;
@@ -66,9 +114,15 @@ static void pci_slot_release(struct kobject *kobj)
static struct pci_slot_attribute pci_slot_attr_address =
__ATTR(address, (S_IFREG | S_IRUGO), address_read_file, NULL);
static struct pci_slot_attribute pci_slot_attr_max_speed =
__ATTR(max_bus_speed, (S_IFREG | S_IRUGO), max_speed_read_file, NULL);
static struct pci_slot_attribute pci_slot_attr_cur_speed =
__ATTR(cur_bus_speed, (S_IFREG | S_IRUGO), cur_speed_read_file, NULL);
static struct attribute *pci_slot_default_attrs[] = {
&pci_slot_attr_address.attr,
&pci_slot_attr_max_speed.attr,
&pci_slot_attr_cur_speed.attr,
NULL,
};