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Code Issues Releases Wiki Activity

Merge branch 'pci/misc' into next

Browse source 
* pci/misc:
  PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition
  PCI: acpiphp_ibm: Convert to dynamic debug
  PCI: acpiphp: Convert to dynamic debug
  PCI: Remove Intel Haswell D3 delays
  PCI: Pass type, width, and prefetchability for window alignment
  PCI: Document reason for using pci_is_root_bus()
  PCI: Use pci_is_root_bus() to check for root bus
  PCI: Remove unused "is_pcie" from pci_dev structure
  PCI: Update pci_find_slot() description in pci.txt
  [SCSI] qla2xxx: Use standard PCIe Capability Link register field names
  PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()
  PCI: Drop "setting latency timer" messages
This commit is contained in:
Bjorn Helgaas 2013-09-27 16:35:43 -06:00
commit 605d240052
12 changed files with 96 additions and 95 deletions
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8
Documentation/PCI/pci.txt
View file

@ -525,8 +525,9 @@ corresponding register block for you.
6. Other interesting functions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pci_find_slot() Find pci_dev corresponding to given bus and
slot numbers.
pci_get_domain_bus_and_slot() Find pci_dev corresponding to given domain,
bus and slot and number. If the device is
found, its reference count is increased.
pci_set_power_state() Set PCI Power Management state (0=D0 ... 3=D3)
pci_find_capability() Find specified capability in device's capability
list.
@ -582,7 +583,8 @@ having sane locking.
pci_find_device() Superseded by pci_get_device()
pci_find_subsys() Superseded by pci_get_subsys()
pci_find_slot() Superseded by pci_get_slot()
pci_find_slot() Superseded by pci_get_domain_bus_and_slot()
pci_get_slot() Superseded by pci_get_domain_bus_and_slot()
The alternative is the traditional PCI device driver that walks PCI

10
drivers/pci/hotplug/acpiphp.h
View file

@ -39,16 +39,6 @@
#include <linux/mutex.h>
#include <linux/pci_hotplug.h>
#define dbg(format, arg...) \
do { \
if (acpiphp_debug) \
printk(KERN_DEBUG "%s: " format, \
MY_NAME , ## arg); \
} while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
struct acpiphp_context;
struct acpiphp_bridge;
struct acpiphp_slot;

37
drivers/pci/hotplug/acpiphp_core.c
View file

@ -31,6 +31,8 @@
*
*/
#define pr_fmt(fmt) "acpiphp: " fmt
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@ -43,12 +45,9 @@
#include <linux/smp.h>
#include "acpiphp.h"
#define MY_NAME "acpiphp"
/* name size which is used for entries in pcihpfs */
#define SLOT_NAME_SIZE 21 /* {_SUN} */
bool acpiphp_debug;
bool acpiphp_disabled;
/* local variables */
@ -61,9 +60,7 @@ static struct acpiphp_attention_info *attention_info;
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
MODULE_PARM_DESC(disable, "disable acpiphp driver");
module_param_named(debug, acpiphp_debug, bool, 0644);
module_param_named(disable, acpiphp_disabled, bool, 0444);
/* export the attention callback registration methods */
@ -139,7 +136,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
/* enable the specified slot */
return acpiphp_enable_slot(slot->acpi_slot);
@ -156,7 +153,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
/* disable the specified slot */
return acpiphp_disable_and_eject_slot(slot->acpi_slot);
@ -176,8 +173,9 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
{
int retval = -ENODEV;
dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
pr_debug("%s - physical_slot = %s\n", __func__,
hotplug_slot_name(hotplug_slot));
if (attention_info && try_module_get(attention_info->owner)) {
retval = attention_info->set_attn(hotplug_slot, status);
module_put(attention_info->owner);
@ -199,7 +197,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = acpiphp_get_power_status(slot->acpi_slot);
@ -221,7 +219,8 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
int retval = -EINVAL;
dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
pr_debug("%s - physical_slot = %s\n", __func__,
hotplug_slot_name(hotplug_slot));
if (attention_info && try_module_get(attention_info->owner)) {
retval = attention_info->get_attn(hotplug_slot, value);
@ -244,7 +243,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = acpiphp_get_latch_status(slot->acpi_slot);
@ -264,7 +263,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = acpiphp_get_adapter_status(slot->acpi_slot);
@ -279,7 +278,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
kfree(slot->hotplug_slot);
kfree(slot);
@ -322,11 +321,11 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot,
if (retval == -EBUSY)
goto error_hpslot;
if (retval) {
err("pci_hp_register failed with error %d\n", retval);
pr_err("pci_hp_register failed with error %d\n", retval);
goto error_hpslot;
}
info("Slot [%s] registered\n", slot_name(slot));
pr_info("Slot [%s] registered\n", slot_name(slot));
return 0;
error_hpslot:
@ -343,17 +342,17 @@ void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
struct slot *slot = acpiphp_slot->slot;
int retval = 0;
info("Slot [%s] unregistered\n", slot_name(slot));
pr_info("Slot [%s] unregistered\n", slot_name(slot));
retval = pci_hp_deregister(slot->hotplug_slot);
if (retval)
err("pci_hp_deregister failed with error %d\n", retval);
pr_err("pci_hp_deregister failed with error %d\n", retval);
}
void __init acpiphp_init(void)
{
info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
pr_info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
acpiphp_disabled ? ", disabled by user; please report a bug"
: "");
}

23
drivers/pci/hotplug/acpiphp_glue.c
View file

@ -39,6 +39,8 @@
* bus. It loses the refcount when the the driver unloads.
*/
#define pr_fmt(fmt) "acpiphp_glue: " fmt
#include <linux/init.h>
#include <linux/module.h>
@ -58,8 +60,6 @@ static LIST_HEAD(bridge_list);
static DEFINE_MUTEX(bridge_mutex);
static DEFINE_MUTEX(acpiphp_context_lock);
#define MY_NAME "acpiphp_glue"
static void handle_hotplug_event(acpi_handle handle, u32 type, void *data);
static void acpiphp_sanitize_bus(struct pci_bus *bus);
static void acpiphp_set_hpp_values(struct pci_bus *bus);
@ -335,7 +335,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
if (ACPI_FAILURE(status))
sun = bridge->nr_slots;
dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
pr_debug("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
sun, pci_domain_nr(pbus), pbus->number, device);
retval = acpiphp_register_hotplug_slot(slot, sun);
@ -343,10 +343,10 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
slot->slot = NULL;
bridge->nr_slots--;
if (retval == -EBUSY)
warn("Slot %llu already registered by another "
pr_warn("Slot %llu already registered by another "
"hotplug driver\n", sun);
else
warn("acpiphp_register_hotplug_slot failed "
pr_warn("acpiphp_register_hotplug_slot failed "
"(err code = 0x%x)\n", retval);
}
/* Even if the slot registration fails, we can still use it. */
@ -369,7 +369,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
if (register_hotplug_dock_device(handle,
&acpiphp_dock_ops, context,
acpiphp_dock_init, acpiphp_dock_release))
dbg("failed to register dock device\n");
pr_debug("failed to register dock device\n");
}
/* install notify handler */
@ -427,7 +427,7 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge)
ACPI_SYSTEM_NOTIFY,
handle_hotplug_event);
if (ACPI_FAILURE(status))
err("failed to remove notify handler\n");
pr_err("failed to remove notify handler\n");
}
}
if (slot->slot)
@ -830,8 +830,9 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
/* bus re-enumerate */
dbg("%s: Bus check notify on %s\n", __func__, objname);
dbg("%s: re-enumerating slots under %s\n", __func__, objname);
pr_debug("%s: Bus check notify on %s\n", __func__, objname);
pr_debug("%s: re-enumerating slots under %s\n",
__func__, objname);
if (bridge) {
acpiphp_check_bridge(bridge);
} else {
@ -845,7 +846,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
case ACPI_NOTIFY_DEVICE_CHECK:
/* device check */
dbg("%s: Device check notify on %s\n", __func__, objname);
pr_debug("%s: Device check notify on %s\n", __func__, objname);
if (bridge) {
acpiphp_check_bridge(bridge);
} else {
@ -866,7 +867,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
case ACPI_NOTIFY_EJECT_REQUEST:
/* request device eject */
dbg("%s: Device eject notify on %s\n", __func__, objname);
pr_debug("%s: Device eject notify on %s\n", __func__, objname);
acpiphp_disable_and_eject_slot(func->slot);
break;
}

58
drivers/pci/hotplug/acpiphp_ibm.c
View file

@ -25,6 +25,8 @@
*
*/
#define pr_fmt(fmt) "acpiphp_ibm: " fmt
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
@ -43,23 +45,11 @@
#define DRIVER_AUTHOR "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver IBM extension"
static bool debug;
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_VERSION(DRIVER_VERSION);
module_param(debug, bool, 0644);
MODULE_PARM_DESC(debug, " Debugging mode enabled or not");
#define MY_NAME "acpiphp_ibm"
#undef dbg
#define dbg(format, arg...) \
do { \
if (debug) \
printk(KERN_DEBUG "%s: " format, \
MY_NAME , ## arg); \
} while (0)
#define FOUND_APCI 0x61504349
/* these are the names for the IBM ACPI pseudo-device */
@ -189,7 +179,7 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
ibm_slot = ibm_slot_from_id(hpslot_to_sun(slot));
dbg("%s: set slot %d (%d) attention status to %d\n", __func__,
pr_debug("%s: set slot %d (%d) attention status to %d\n", __func__,
ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
(status ? 1 : 0));
@ -202,10 +192,10 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
stat = acpi_evaluate_integer(ibm_acpi_handle, "APLS", &params, &rc);
if (ACPI_FAILURE(stat)) {
err("APLS evaluation failed: 0x%08x\n", stat);
pr_err("APLS evaluation failed: 0x%08x\n", stat);
return -ENODEV;
} else if (!rc) {
err("APLS method failed: 0x%08llx\n", rc);
pr_err("APLS method failed: 0x%08llx\n", rc);
return -ERANGE;
}
return 0;
@ -234,7 +224,7 @@ static int ibm_get_attention_status(struct hotplug_slot *slot, u8 *status)
else
*status = 0;
dbg("%s: get slot %d (%d) attention status is %d\n", __func__,
pr_debug("%s: get slot %d (%d) attention status is %d\n", __func__,
ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
*status);
@ -266,10 +256,10 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
u8 subevent = event & 0xf0;
struct notification *note = context;
dbg("%s: Received notification %02x\n", __func__, event);
pr_debug("%s: Received notification %02x\n", __func__, event);
if (subevent == 0x80) {
dbg("%s: generationg bus event\n", __func__);
pr_debug("%s: generationg bus event\n", __func__);
acpi_bus_generate_netlink_event(note->device->pnp.device_class,
dev_name(&note->device->dev),
note->event, detail);
@ -301,7 +291,7 @@ static int ibm_get_table_from_acpi(char **bufp)
status = acpi_evaluate_object(ibm_acpi_handle, "APCI", NULL, &buffer);
if (ACPI_FAILURE(status)) {
err("%s: APCI evaluation failed\n", __func__);
pr_err("%s: APCI evaluation failed\n", __func__);
return -ENODEV;
}
@ -309,13 +299,13 @@ static int ibm_get_table_from_acpi(char **bufp)
if (!(package) ||
(package->type != ACPI_TYPE_PACKAGE) ||
!(package->package.elements)) {
err("%s: Invalid APCI object\n", __func__);
pr_err("%s: Invalid APCI object\n", __func__);
goto read_table_done;
}
for(size = 0, i = 0; i < package->package.count; i++) {
if (package->package.elements[i].type != ACPI_TYPE_BUFFER) {
err("%s: Invalid APCI element %d\n", __func__, i);
pr_err("%s: Invalid APCI element %d\n", __func__, i);
goto read_table_done;
}
size += package->package.elements[i].buffer.length;
@ -325,7 +315,7 @@ static int ibm_get_table_from_acpi(char **bufp)
goto read_table_done;
lbuf = kzalloc(size, GFP_KERNEL);
dbg("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
pr_debug("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
__func__, package->package.count, size, lbuf);
if (lbuf) {
@ -370,8 +360,8 @@ static ssize_t ibm_read_apci_table(struct file *filp, struct kobject *kobj,
{
int bytes_read = -EINVAL;
char *table = NULL;
dbg("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
pr_debug("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
if (pos == 0) {
bytes_read = ibm_get_table_from_acpi(&table);
@ -403,7 +393,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
err("%s: Failed to get device information status=0x%x\n",
pr_err("%s: Failed to get device information status=0x%x\n",
__func__, status);
return retval;
}
@ -411,7 +401,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
if (info->current_status && (info->valid & ACPI_VALID_HID) &&
(!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
!strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
dbg("found hardware: %s, handle: %p\n",
pr_debug("found hardware: %s, handle: %p\n",
info->hardware_id.string, handle);
*phandle = handle;
/* returning non-zero causes the search to stop
@ -432,18 +422,18 @@ static int __init ibm_acpiphp_init(void)
struct acpi_device *device;
struct kobject *sysdir = &pci_slots_kset->kobj;
dbg("%s\n", __func__);
pr_debug("%s\n", __func__);
if (acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, ibm_find_acpi_device, NULL,
&ibm_acpi_handle, NULL) != FOUND_APCI) {
err("%s: acpi_walk_namespace failed\n", __func__);
pr_err("%s: acpi_walk_namespace failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
dbg("%s: found IBM aPCI device\n", __func__);
pr_debug("%s: found IBM aPCI device\n", __func__);
if (acpi_bus_get_device(ibm_acpi_handle, &device)) {
err("%s: acpi_bus_get_device failed\n", __func__);
pr_err("%s: acpi_bus_get_device failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
@ -457,7 +447,7 @@ static int __init ibm_acpiphp_init(void)
ACPI_DEVICE_NOTIFY, ibm_handle_events,
&ibm_note);
if (ACPI_FAILURE(status)) {
err("%s: Failed to register notification handler\n",
pr_err("%s: Failed to register notification handler\n",
__func__);
retval = -EBUSY;
goto init_cleanup;
@ -479,17 +469,17 @@ static void __exit ibm_acpiphp_exit(void)
acpi_status status;
struct kobject *sysdir = &pci_slots_kset->kobj;
dbg("%s\n", __func__);
pr_debug("%s\n", __func__);
if (acpiphp_unregister_attention(&ibm_attention_info))
err("%s: attention info deregistration failed", __func__);
pr_err("%s: attention info deregistration failed", __func__);
status = acpi_remove_notify_handler(
ibm_acpi_handle,
ACPI_DEVICE_NOTIFY,
ibm_handle_events);
if (ACPI_FAILURE(status))
err("%s: Notification handler removal failed\n", __func__);
pr_err("%s: Notification handler removal failed\n", __func__);
/* remove the /sys entries */
sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr);
}

2
drivers/pci/pci.c
View file

@ -2854,7 +2854,7 @@ void __weak pcibios_set_master(struct pci_dev *dev)
lat = pcibios_max_latency;
else
return;
dev_printk(KERN_DEBUG, &dev->dev, "setting latency timer to %d\n", lat);
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
}

1
drivers/pci/probe.c
View file

@ -983,7 +983,6 @@ void set_pcie_port_type(struct pci_dev *pdev)
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
if (!pos)
return;
pdev->is_pcie = 1;
pdev->pcie_cap = pos;
pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
pdev->pcie_flags_reg = reg16;

23
drivers/pci/quirks.c
View file

@ -2954,6 +2954,29 @@ static void disable_igfx_irq(struct pci_dev *dev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
/*
* PCI devices which are on Intel chips can skip the 10ms delay
* before entering D3 mode.
*/
static void quirk_remove_d3_delay(struct pci_dev *dev)
{
dev->d3_delay = 0;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
/*
* Some devices may pass our check in pci_intx_mask_supported if
* PCI_COMMAND_INTX_DISABLE works though they actually do not properly

4
drivers/pci/setup-bus.c
View file

@ -982,7 +982,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
}
min_align = calculate_mem_align(aligns, max_order);
min_align = max(min_align, window_alignment(bus, b_res->flags & mask));
min_align = max(min_align, window_alignment(bus, b_res->flags));
size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align);
if (children_add_size > add_size)
add_size = children_add_size;
@ -1136,7 +1136,7 @@ void __ref __pci_bus_size_bridges(struct pci_bus *bus,
}
/* The root bus? */
if (!bus->self)
if (pci_is_root_bus(bus))
return;
switch (bus->self->class >> 8) {

14
drivers/scsi/qla2xxx/qla_os.c
View file

@ -494,18 +494,14 @@ qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
static char *pci_bus_modes[] = { "33", "66", "100", "133", };
struct qla_hw_data *ha = vha->hw;
uint32_t pci_bus;
int pcie_reg;
pcie_reg = pci_pcie_cap(ha->pdev);
if (pcie_reg) {
if (pci_is_pcie(ha->pdev)) {
char lwstr[6];
uint16_t pcie_lstat, lspeed, lwidth;
uint32_t lstat, lspeed, lwidth;
pcie_reg += PCI_EXP_LNKCAP;
pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
lwidth = (pcie_lstat &
(BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
lspeed = lstat & PCI_EXP_LNKCAP_SLS;
lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
strcpy(str, "PCIe (");
switch (lspeed) {

10
include/linux/pci.h
View file

@ -330,8 +330,6 @@ struct pci_dev {
unsigned int msix_enabled:1;
unsigned int ari_enabled:1; /* ARI forwarding */
unsigned int is_managed:1;
unsigned int is_pcie:1; /* Obsolete. Will be removed.
Use pci_is_pcie() instead */
unsigned int needs_freset:1; /* Dev requires fundamental reset */
unsigned int state_saved:1;
unsigned int is_physfn:1;
@ -472,6 +470,10 @@ struct pci_bus {
/*
* Returns true if the pci bus is root (behind host-pci bridge),
* false otherwise
*
* Some code assumes that "bus->self == NULL" means that bus is a root bus.
* This is incorrect because "virtual" buses added for SR-IOV (via
* virtfn_add_bus()) have "bus->self == NULL" but are not root buses.
*/
static inline bool pci_is_root_bus(struct pci_bus *pbus)
{
@ -1749,11 +1751,11 @@ static inline int pci_pcie_cap(struct pci_dev *dev)
* pci_is_pcie - check if the PCI device is PCI Express capable
* @dev: PCI device
*
* Retrun true if the PCI device is PCI Express capable, false otherwise.
* Returns: true if the PCI device is PCI Express capable, false otherwise.
*/
static inline bool pci_is_pcie(struct pci_dev *dev)
{
return !!pci_pcie_cap(dev);
return pci_pcie_cap(dev);
}
/**

1
include/uapi/linux/pci_regs.h
View file

@ -319,7 +319,6 @@
#define PCI_MSIX_PBA 8 /* Pending Bit Array offset */
#define PCI_MSIX_PBA_BIR 0x00000007 /* BAR index */
#define PCI_MSIX_PBA_OFFSET 0xfffffff8 /* Offset into specified BAR */
#define PCI_MSIX_FLAGS_BIRMASK (7 << 0) /* deprecated */
#define PCI_CAP_MSIX_SIZEOF 12 /* size of MSIX registers */
/* MSI-X entry's format */