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| author | Huang Ying <ying.huang@intel.com> | 2011-05-17 16:08:37 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-07-22 08:25:37 -0700 |
| commit | 0918472ceeffad234df5589e45b646a94476f835 (patch) | |
| tree | 3afd05b7710a56056cdf8273545990949dd553fa /drivers/pci/pcie/aer/aerdrv_errprint.c | |
| parent | 0aba496fc820d7c36775f2fd0ef81994e1af67a8 (diff) | |
| download | linux-0918472ceeffad234df5589e45b646a94476f835.tar.gz linux-0918472ceeffad234df5589e45b646a94476f835.tar.bz2 linux-0918472ceeffad234df5589e45b646a94476f835.zip | |
PCI: PCIe AER: add aer_recover_queue
In addition to native PCIe AER, now APEI (ACPI Platform Error
Interface) GHES (Generic Hardware Error Source) can be used to report
PCIe AER errors too. To add support to APEI GHES PCIe AER recovery,
aer_recover_queue is added to export the recovery function in native
PCIe AER driver.
Recoverable PCIe AER errors are reported via NMI in APEI GHES. Then
APEI GHES uses irq_work to delay the error processing into an IRQ
handler. But PCIe AER recovery can be very time-consuming, so
aer_recover_queue, which can be used in IRQ handler, delays the real
recovery action into the process context, that is, work queue.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pcie/aer/aerdrv_errprint.c')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_errprint.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c index b07a42e0b350..3ea51736f18d 100644 --- a/drivers/pci/pcie/aer/aerdrv_errprint.c +++ b/drivers/pci/pcie/aer/aerdrv_errprint.c @@ -204,7 +204,7 @@ void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info) } #ifdef CONFIG_ACPI_APEI_PCIEAER -static int cper_severity_to_aer(int cper_severity) +int cper_severity_to_aer(int cper_severity) { switch (cper_severity) { case CPER_SEV_RECOVERABLE: @@ -215,6 +215,7 @@ static int cper_severity_to_aer(int cper_severity) return AER_CORRECTABLE; } } +EXPORT_SYMBOL_GPL(cper_severity_to_aer); void cper_print_aer(const char *prefix, int cper_severity, struct aer_capability_regs *aer) |