diff options
| author | Keith Busch <keith.busch@intel.com> | 2018-09-20 10:27:11 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-09-21 12:18:10 -0500 |
| commit | c4eed62a214330908eec11b0dc170d34fa50b412 (patch) | |
| tree | 8c8f5bfc802300f7aab110888fd25bce0d1bbae2 /drivers/pci/pcie | |
| parent | 9d938ea53b265ed6df6cdd1715d971f0235fdbfc (diff) | |
| download | linux-rpi-c4eed62a214330908eec11b0dc170d34fa50b412.tar.gz linux-rpi-c4eed62a214330908eec11b0dc170d34fa50b412.tar.bz2 linux-rpi-c4eed62a214330908eec11b0dc170d34fa50b412.zip | |
PCI/ERR: Use slot reset if available
The secondary bus reset may have link side effects that a hotplug capable
port may incorrectly react to. Use the slot specific reset for hotplug
ports, fixing the undesirable link down-up handling during error
recovering.
Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: fold in
https://lore.kernel.org/linux-pci/20180926152326.14821-1-keith.busch@intel.com
for issue reported by Stephen Rothwell <sfr@canb.auug.org.au>]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aer.c | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/err.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index 5c3ea7254c6a..1563e22600ec 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -1528,7 +1528,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev) reg32 &= ~ROOT_PORT_INTR_ON_MESG_MASK; pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32); - rc = pci_bridge_secondary_bus_reset(dev); + rc = pci_bus_error_reset(dev); pci_printk(KERN_DEBUG, dev, "Root Port link has been reset\n"); /* Clear Root Error Status */ diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c index cac406b6e936..62ab665f0f03 100644 --- a/drivers/pci/pcie/err.c +++ b/drivers/pci/pcie/err.c @@ -177,7 +177,7 @@ static pci_ers_result_t default_reset_link(struct pci_dev *dev) { int rc; - rc = pci_bridge_secondary_bus_reset(dev); + rc = pci_bus_error_reset(dev); pci_printk(KERN_DEBUG, dev, "downstream link has been reset\n"); return rc ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; } |