aboutsummaryrefslogtreecommitdiff
path: root/drivers/pci/pcie/aer/aerdrv.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pci/pcie/aer/aerdrv.c')
-rw-r--r--drivers/pci/pcie/aer/aerdrv.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 21f215f4daa..7a711ee314b 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -25,6 +25,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/pcieport_if.h>
+#include <linux/slab.h>
#include "aerdrv.h"
#include "../../pci.h"
@@ -243,11 +244,17 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev)
/* Assert Secondary Bus Reset */
pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &p2p_ctrl);
- p2p_ctrl |= PCI_CB_BRIDGE_CTL_CB_RESET;
+ p2p_ctrl |= PCI_BRIDGE_CTL_BUS_RESET;
pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl);
+ /*
+ * we should send hot reset message for 2ms to allow it time to
+ * propogate to all downstream ports
+ */
+ msleep(2);
+
/* De-assert Secondary Bus Reset */
- p2p_ctrl &= ~PCI_CB_BRIDGE_CTL_CB_RESET;
+ p2p_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET;
pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl);
/*