diff options
Diffstat (limited to 'drivers/pci/hotplug/pciehp.h')
| -rw-r--r-- | drivers/pci/hotplug/pciehp.h | 68 |
1 files changed, 33 insertions, 35 deletions
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 506e1d923a1f..debc79b0adfb 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -25,43 +25,34 @@ #include "../pcie/portdrv.h" -#define MY_NAME "pciehp" - extern bool pciehp_poll_mode; extern int pciehp_poll_time; -extern bool pciehp_debug; - -#define dbg(format, arg...) \ -do { \ - if (pciehp_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) +/* + * Set CONFIG_DYNAMIC_DEBUG=y and boot with 'dyndbg="file pciehp* +p"' to + * enable debug messages. + */ #define ctrl_dbg(ctrl, format, arg...) \ - do { \ - if (pciehp_debug) \ - dev_printk(KERN_DEBUG, &ctrl->pcie->device, \ - format, ## arg); \ - } while (0) + pci_dbg(ctrl->pcie->port, format, ## arg) #define ctrl_err(ctrl, format, arg...) \ - dev_err(&ctrl->pcie->device, format, ## arg) + pci_err(ctrl->pcie->port, format, ## arg) #define ctrl_info(ctrl, format, arg...) \ - dev_info(&ctrl->pcie->device, format, ## arg) + pci_info(ctrl->pcie->port, format, ## arg) #define ctrl_warn(ctrl, format, arg...) \ - dev_warn(&ctrl->pcie->device, format, ## arg) + pci_warn(ctrl->pcie->port, format, ## arg) #define SLOT_NAME_SIZE 10 /** * struct controller - PCIe hotplug controller * @pcie: pointer to the controller's PCIe port service device + * @dsn: cached copy of Device Serial Number of Function 0 in the hotplug slot + * (PCIe r6.2 sec 7.9.3); used to determine whether a hotplugged device + * was replaced with a different one during system sleep * @slot_cap: cached copy of the Slot Capabilities register + * @inband_presence_disabled: In-Band Presence Detect Disable supported by + * controller and disabled per spec recommendation (PCIe r5.0, appendix I + * implementation note) * @slot_ctrl: cached copy of the Slot Control register * @ctrl_lock: serializes writes to the Slot Control register * @cmd_started: jiffies when the Slot Control register was last written; @@ -87,6 +78,9 @@ do { \ * @reset_lock: prevents access to the Data Link Layer Link Active bit in the * Link Status register and to the Presence Detect State bit in the Slot * Status register during a slot reset which may cause them to flap + * @depth: Number of additional hotplug ports in the path to the root bus, + * used as lock subclass for @reset_lock + * @ist_running: flag to keep user request waiting while IRQ thread is running * @request_result: result of last user request submitted to the IRQ thread * @requester: wait queue to wake up on completion of user request, * used for synchronous slot enable/disable request via sysfs @@ -96,8 +90,10 @@ do { \ */ struct controller { struct pcie_device *pcie; + u64 dsn; u32 slot_cap; /* capabilities and quirks */ + unsigned int inband_presence_disabled:1; u16 slot_ctrl; /* control register access */ struct mutex ctrl_lock; @@ -116,6 +112,8 @@ struct controller { struct hotplug_slot hotplug_slot; /* hotplug core interface */ struct rw_semaphore reset_lock; + unsigned int depth; + unsigned int ist_running; int request_result; wait_queue_head_t requester; }; @@ -125,9 +123,9 @@ struct controller { * * @OFF_STATE: slot is powered off, no subordinate devices are enumerated * @BLINKINGON_STATE: slot will be powered on after the 5 second delay, - * green led is blinking + * Power Indicator is blinking * @BLINKINGOFF_STATE: slot will be powered off after the 5 second delay, - * green led is blinking + * Power Indicator is blinking * @POWERON_STATE: slot is currently powering on * @POWEROFF_STATE: slot is currently powering off * @ON_STATE: slot is powered on, subordinate devices have been enumerated @@ -160,8 +158,6 @@ struct controller { #define MRL_SENS(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_MRLSP) #define ATTN_LED(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_AIP) #define PWR_LED(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_PIP) -#define HP_SUPR_RM(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_HPS) -#define EMI(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_EIP) #define NO_CMD_CMPL(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_NCCS) #define PSN(ctrl) (((ctrl)->slot_cap & PCI_EXP_SLTCAP_PSN) >> 19) @@ -182,25 +178,27 @@ int pciehp_power_on_slot(struct controller *ctrl); void pciehp_power_off_slot(struct controller *ctrl); void pciehp_get_power_status(struct controller *ctrl, u8 *status); -void pciehp_set_attention_status(struct controller *ctrl, u8 status); +#define INDICATOR_NOOP -1 /* Leave indicator unchanged */ +void pciehp_set_indicators(struct controller *ctrl, int pwr, int attn); + void pciehp_get_latch_status(struct controller *ctrl, u8 *status); int pciehp_query_power_fault(struct controller *ctrl); -void pciehp_green_led_on(struct controller *ctrl); -void pciehp_green_led_off(struct controller *ctrl); -void pciehp_green_led_blink(struct controller *ctrl); -bool pciehp_card_present(struct controller *ctrl); -bool pciehp_card_present_or_link_active(struct controller *ctrl); +int pciehp_card_present(struct controller *ctrl); +int pciehp_card_present_or_link_active(struct controller *ctrl); int pciehp_check_link_status(struct controller *ctrl); -bool pciehp_check_link_active(struct controller *ctrl); +int pciehp_check_link_active(struct controller *ctrl); +bool pciehp_device_replaced(struct controller *ctrl); void pciehp_release_ctrl(struct controller *ctrl); int pciehp_sysfs_enable_slot(struct hotplug_slot *hotplug_slot); int pciehp_sysfs_disable_slot(struct hotplug_slot *hotplug_slot); -int pciehp_reset_slot(struct hotplug_slot *hotplug_slot, int probe); +int pciehp_reset_slot(struct hotplug_slot *hotplug_slot, bool probe); int pciehp_get_attention_status(struct hotplug_slot *hotplug_slot, u8 *status); int pciehp_set_raw_indicator_status(struct hotplug_slot *h_slot, u8 status); int pciehp_get_raw_indicator_status(struct hotplug_slot *h_slot, u8 *status); +int pciehp_slot_reset(struct pcie_device *dev); + static inline const char *slot_name(struct controller *ctrl) { return hotplug_slot_name(&ctrl->hotplug_slot); |