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Scan PCI buses in order the BIOS has assigned them. This is sometimes
necessary to boot from a SCSI disk connected to a twin-channel adapter, and you have multiple of them (disks and adapters). Reviewed by: se
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=16248
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@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: pci.c,v 1.49 1996/04/25 06:04:27 asami Exp $
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** $Id: pci.c,v 1.50 1996/05/18 17:32:20 se Exp $
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**
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** General subroutines for the PCI bus.
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** pci_configure ()
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@ -748,7 +748,8 @@ pci_bus_config (void)
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** allocate bus descriptor for bus behind the bridge
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*/
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link = &pcicb->pcicb_down;
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while (*link) link = &(*link)->pcicb_next;
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while (*link && (*link)->pcicb_bus < secondary)
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link = &(*link)->pcicb_next;
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this = malloc (sizeof (*this), M_DEVBUF, M_WAITOK);
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@ -758,6 +759,7 @@ pci_bus_config (void)
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** scanning the bus behind the bridge.
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*/
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bzero (this, sizeof(*this));
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this->pcicb_next = *link;
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this->pcicb_up = pcicb;
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this->pcicb_bridge = tag;
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this->pcicb_bus = secondary;
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@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: pci.c,v 1.49 1996/04/25 06:04:27 asami Exp $
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** $Id: pci.c,v 1.50 1996/05/18 17:32:20 se Exp $
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**
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** General subroutines for the PCI bus.
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** pci_configure ()
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@ -748,7 +748,8 @@ pci_bus_config (void)
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** allocate bus descriptor for bus behind the bridge
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*/
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link = &pcicb->pcicb_down;
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while (*link) link = &(*link)->pcicb_next;
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while (*link && (*link)->pcicb_bus < secondary)
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link = &(*link)->pcicb_next;
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this = malloc (sizeof (*this), M_DEVBUF, M_WAITOK);
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@ -758,6 +759,7 @@ pci_bus_config (void)
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** scanning the bus behind the bridge.
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*/
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bzero (this, sizeof(*this));
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this->pcicb_next = *link;
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this->pcicb_up = pcicb;
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this->pcicb_bridge = tag;
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this->pcicb_bus = secondary;
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