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| author | Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | 2010-04-15 06:21:27 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-05-11 21:01:38 +0200 |
| commit | 89713422a768458a0d375f0c2f3586cd5ccde6a1 (patch) | |
| tree | c446440123602cdb5320617ac7a8c2dbf514ff41 /drivers/pci/pcie/aer/aerdrv.h | |
| parent | PCI: aerdrv: rework find_aer_service (diff) | |
| download | linux-89713422a768458a0d375f0c2f3586cd5ccde6a1.tar.xz linux-89713422a768458a0d375f0c2f3586cd5ccde6a1.zip | |
PCI: aerdrv: introduce default_downstream_reset_link
I noticed that when I inject a fatal error to an endpoint via
aer-inject, aer_root_reset() is called as reset_link for a
downstream port at upstream of the endpoint:
pcieport 0000:00:06.0: AER: Uncorrected (Fatal) error received: id=5401
:
pcieport 0000:52:02.0: Root Port link has been reset
It externally appears to be working, but internally issues some
accesses to PCI_ERR_ROOT_COMMAND/STATUS registers that is for
root port so not available on downstream port.
This patch introduces default_downstream_reset_link that is
a version of aer_root_reset() with no accesses to root port's
register. It is used for downstream ports that has no reset_link
function its specific.
This patch also updates related description in pcieaer-howto.txt.
Some minor fixes are included.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pcie/aer/aerdrv.h')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h index d0f8291c5ca0..7aaae2d2bd67 100644 --- a/drivers/pci/pcie/aer/aerdrv.h +++ b/drivers/pci/pcie/aer/aerdrv.h @@ -114,6 +114,7 @@ static inline pci_ers_result_t merge_result(enum pci_ers_result orig, } extern struct bus_type pcie_port_bus_type; +extern void aer_do_secondary_bus_reset(struct pci_dev *dev); extern int aer_init(struct pcie_device *dev); extern void aer_isr(struct work_struct *work); extern void aer_print_error(struct pci_dev *dev, struct aer_err_info *info); |