Patch Name: PHKL_31226

Patch Description: s700_800 11.23 P2P Bridge fixes for 64-bit capable cards

Creation Date: 04/07/23

Post Date: 04/08/24

Hardware Platforms - OS Releases:
	s700: 11.23
	s800: 11.23

Products: N/A

Filesets:
	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_31226: PANIC

Category Tags:
	defect_repair general_release critical panic

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_31226

Symptoms:
	PHKL_31226:
	( SR:8606346047 CR:JAGaf06874 )
	Using on-line add (OLA) to add certain PCI devices to a
	machine may result in the devices failing to be claimed, or
	may panic the machine.  The PCI devices involved are those
	that are located underneath a PCI-to-PCI bridge and request
	64-bit address ranges.

	This problem is known to be exposed with the SA6404 Raid
	card and the AB286A Infiniband card.  The problem will
	also be exposed with any future cards that are 64-bit
	capable and are beneath a PCI-to-PCI bridge or have such a
	bridge built-in.

Defect Description:
	PHKL_31226:
	( SR:8606346047 CR:JAGaf06874 )
	Certain cards, when underneath PCI-to-PCI bridges (or
	containing built-in bridges), will not have addresses
	assigned to their 64-bit PCI BAR registers.  This assignment
	does not occur because HP-UX only supports 32-bit address
	ranges for PCI devices beneath PCI-to-PCI bridges.

	Resolution:
	The resolution for this problem is to always assign 32-bit
	addresses to a device's Base Address Registers (BARs) if it
	is below a PCI-to-PCI Bridge.  These devices do not benefit
	from being assigned 64-bit addresses.  In addition, enough
	32-bit address ranges exist for assignment to all our
	devices.

Enhancement:
	No

SR:
	8606346047

Patch Files:
	
	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
	/usr/conf/lib/libpci.a(pci_cdio.o)

what(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
	/usr/conf/lib/libpci.a(pci_cdio.o):
		pci_cdio.c $Date: 2004/07/21 14:33:57 $Revision: r11
			.23/1 PATCH_11.23 (PHKL_31226)

cksum(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
	3953170641 193368 /usr/conf/lib/libpci.a(pci_cdio.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 80 KBytes

Installation Instructions:
	Please review all instructions and the Hewlett-Packard
	SupportLine User Guide or your Hewlett-Packard support terms
	and conditions for precautions, scope of license,
	restrictions, and, limitation of liability and warranties,
	before installing this patch.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHKL_31226

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_31226.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_31226.  If you do not wish to retain a
	copy of the original software, include the patch_save_files
	option in the swinstall command above:

		-x patch_save_files=false

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHKL_31226.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_31226.depot

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHKL_31226.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None