PCI: cleanup Function Level Reset
This patch enhances the FLR functions:
1) remove disable_irq() so the shared IRQ won't be disabled.
2) replace the 1s wait with 100, 200 and 400ms wait intervals
for the Pending Transaction.
3) replace mdelay() with msleep().
4) add might_sleep().
5) lock the device to prevent PM suspend from accessing the CSRs
during the reset.
6) coding style fixes.
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index e87fe95..03c7706 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -110,7 +110,7 @@
}
if (reset)
- pci_execute_reset_function(virtfn);
+ __pci_reset_function(virtfn);
pci_device_add(virtfn, virtfn->bus);
mutex_unlock(&iov->dev->sriov->lock);
@@ -164,7 +164,7 @@
if (reset) {
device_release_driver(&virtfn->dev);
- pci_execute_reset_function(virtfn);
+ __pci_reset_function(virtfn);
}
sprintf(buf, "virtfn%u", id);