During the PCI prepare callback, save the SR-IOV number if the device
is a physical function.
Signed-off-by: Chris Li <chrisl@xxxxxxxxxx>
---
drivers/pci/liveupdate.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/liveupdate.c b/drivers/pci/liveupdate.c
index 189827c6111b2c00ebb24404a205cde3f75d33c3..09faba99e9218b443f66060db5142208e22c7dd5 100644
--- a/drivers/pci/liveupdate.c
+++ b/drivers/pci/liveupdate.c
@@ -21,6 +21,7 @@ static LIST_HEAD(probe_devices);
struct pci_dev_ser {
u32 path; /* domain + bus + slot + fn */
u8 requested;
+ u16 num_vfs;
char driver_name[63];
u64 driver_data; /* driver data */
};
@@ -153,6 +154,8 @@ static int pci_save_device_state(struct device *dev, struct pci_dev_ser *s)
strscpy(s->driver_name, name, sizeof(s->driver_name));
s->path = pci_get_device_path(pdev);
s->requested = dev->lu.requested;
+ if (pdev->sriov && pdev->is_physfn)
+ s->num_vfs = pdev->sriov->num_VFs;
return 0;
}
@@ -381,9 +384,9 @@ static void pci_dev_do_restore(struct pci_dev *dev, struct pci_dev_ser *s)
dev->dev.lu.requested = 1;
else
dev->dev.lu.depended = 1;
- pci_info(dev, "liveupdate restore [%s] driver: %s data: [%llx]\n",
+ pci_info(dev, "liveupdate restore [%s] driver: %s data: [%llx] num_vfs: %d\n",
s->requested ? "requested" : "depended",
- s->driver_name, s->driver_data);
+ s->driver_name, s->driver_data, s->num_vfs);
list_move_tail(&dev->dev.lu.lu_next, &probe_devices);
}
--
2.50.1.487.gc89ff58d15-goog
