From: Doug Ledford <dledford@redhat.com>
Subject: [Patch RHEL5.1] Fix detection of PCI-e based devices on ppc systems
Date: Thu, 16 Aug 2007 11:44:20 -0400
Bugzilla: 252085
Message-Id: <1187279060.14384.167.camel@firewall.xsintricity.com>
Changelog: [ppc] Fix detection of PCI-e based devices


The ppc arch is failing to detect PCI-e based devices in certain ppc
cell based machines (bz252085).  Without some sort of solution, all
PCI-e based devices on these machines are unusable.  This got thrown my
way because, as it turns out, the device this is currently rendering
unusable in the IBM blade servers based on ppc cell chips is their
Infiniband card, which happens to be the primary means of inter-blade
communication.  Aka, these blades are worthless without their infiniband
card working.

The attached patch comes from upstream, and has been tested in isolation
by IBM to resolve the issue.  With this patch in place, the cell
machines find the device in question and operate properly with that
device.

Blocker status has been requested for this patch.

-- 
Doug Ledford <dledford@redhat.com>
              GPG KeyID: CFBFF194
              http://people.redhat.com/dledford

Infiniband specific RPMs available at
              http://people.redhat.com/dledford/Infiniband

Index: b/arch/powerpc/platforms/cell/setup.c
===================================================================
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -148,7 +148,8 @@ static void __init cell_find_and_init_ph
 		if (plb5 == NULL)
 			continue;
 		for (np = NULL; !!(np = of_get_next_child(plb5, np));)
-			if (strcmp(np->name, "pcie") == 0)
+			if ((strcmp(np->name, "pcie") == 0) ||
+			    (strcmp(np->name, "pciex") == 0))
 				cell_add_phb(np, index++);
 		for (plb4 = NULL; !!(plb4 = of_get_next_child(plb5, plb4));)
 			if (strcmp(plb4->name, "plb4") == 0)