Change the VPD code to read the VPD data on-demand when a driver asks for

it via pci_get_vpd_*() rather than always reading it for each device during
boot.  I've left the tunable so that it can still be turned off if a device
driver causes a lockup via a query to a broken device, but devices whose
drivers do not use VPD (the vast majority) should no longer result in
lockups during boot, and most folks should not need to tweak the tunable
now.

Tested on:	bge(4)
Silence from:	jmg

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/dev/pci/pcivar.h b/sys/dev/pci/pcivar.h
index a075745..0b1b5ad 100644
--- a/sys/dev/pci/pcivar.h
+++ b/sys/dev/pci/pcivar.h
@@ -67,6 +67,7 @@ struct vpd_write {
 
 struct pcicfg_vpd {
     uint8_t	vpd_reg;	/* base register, + 2 for addr, + 4 data */
+    char	vpd_cached;
     char	*vpd_ident;	/* string identifier */
     int 	vpd_rocnt;
     struct vpd_readonly *vpd_ros;