diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index d09e8f39e429..a4c397434057 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -11,6 +11,8 @@ #define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */ +#define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000 + extern const unsigned char pcie_link_speed[]; extern bool pci_early_dump; @@ -534,6 +536,7 @@ void pci_acs_init(struct pci_dev *dev); int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags); int pci_dev_specific_enable_acs(struct pci_dev *dev); int pci_dev_specific_disable_acs_redir(struct pci_dev *dev); +bool pcie_failed_link_retrain(struct pci_dev *dev); #else static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags) @@ -548,6 +551,10 @@ static inline int pci_dev_specific_disable_acs_redir(struct pci_dev *dev) { return -ENOTTY; } +static inline bool pcie_failed_link_retrain(struct pci_dev *dev) +{ + return false; +} #endif /* PCI error reporting and recovery */ @@ -556,6 +563,7 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev, pci_ers_result_t (*reset_subordinates)(struct pci_dev *pdev)); bool pcie_wait_for_link(struct pci_dev *pdev, bool active); +int pcie_retrain_link(struct pci_dev *pdev, bool use_lt); #ifdef CONFIG_PCIEASPM void pcie_aspm_init_link_state(struct pci_dev *pdev); void pcie_aspm_exit_link_state(struct pci_dev *pdev); @@ -679,6 +687,8 @@ extern const struct attribute_group aer_stats_attr_group; void pci_aer_clear_fatal_status(struct pci_dev *dev); int pci_aer_clear_status(struct pci_dev *dev); int pci_aer_raw_clear_status(struct pci_dev *dev); +void pci_save_aer_state(struct pci_dev *dev); +void pci_restore_aer_state(struct pci_dev *dev); #else static inline void pci_no_aer(void) { } static inline void pci_aer_init(struct pci_dev *d) { } @@ -686,6 +696,8 @@ static inline void pci_aer_exit(struct pci_dev *d) { } static inline void pci_aer_clear_fatal_status(struct pci_dev *dev) { } static inline int pci_aer_clear_status(struct pci_dev *dev) { return -EINVAL; } static inline int pci_aer_raw_clear_status(struct pci_dev *dev) { return -EINVAL; } +static inline void pci_save_aer_state(struct pci_dev *dev) { } +static inline void pci_restore_aer_state(struct pci_dev *dev) { } #endif #ifdef CONFIG_ACPI |