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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am not exactly sure who to direct this question to (general
Linux kernel or LinuxPPC),<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>so I am directing to both – in hopes that someone will
recognize this problem – and perhaps<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>give me some suggestions on how to proceed…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am running Linux (2.6.23x (and 2.6.27.x)) on a MPC8572 based
system.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have an 8616 switch that has a Port (6) connected to a
FPGA that is <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>NOT loaded at before Linux boots (note: this port is
configured for HOTPLUG<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>events - which we do get after FPGA is loaded). We are
NOT using a <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>static device tree map (because the devices in the system are
very dynamic).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><br>
We use instead the pci auto scan mechanism(s) to scan/assign resources <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(including into the BAR registers) at bootup to all of the
devices that are <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>attached to this MPC8572…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Here is the port that is attached to the device (note: there
are NO <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>resources assigned at this point this port):<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>-------------------------------------------------------------------------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>02:06.0 PCI bridge: PLX Technology,
Inc.: Unknown device 8616 (rev bb) (prog-if 00 [<st1:place w:st="on"><st1:City
w:st="on">Normal</st1:City></st1:place> decode])<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Flags: bus master, fast devsel, latency 0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Bus: primary=02, secondary=05, subordinate=05, sec-latency=0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [40] Power Management version 3<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/2 Enable+<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [68] #10 [0162]<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [a4] #0d [0000]<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>root@slave7 ~ # lspci -t<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>-+-[01]---00.0-[02-05]--+-01.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> |
+-04.0-[03]--<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> |
+-05.0-[04]--<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> |
\-06.0-[05]—<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>-------------------------------------------------------------------------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Later, after I detect there is an FPGA to load - I load it. At
completion of the<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>loading of the FPGA - the 8616 detects the FPGA –
and creates a HotPlug <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>event that the PCI Express HotPlug Driver handles:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>-------------------------------------------------------------------------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>root@slave7 ~ # pciehp: pcie_isr:
intr_loc 8<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: pciehp:
Presence/Notify input change.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: Card present on
Slot(0005_0070)<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: Surprise Removal<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: hpc_get_power_status:
SLOTCTRL 80 value read 8<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: hpc_get_attention_status:
SLOTCTRL 80, value read 8<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: board_added: slot device,
slot offset, hp slot = 0, 0 ,0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: hpc_check_lnk_status:
lnk_status = 2021<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>PCI: Found 0000:05:00.0 [1172/0004]
00ff00 00<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>PCI: Calling quirk c0012d3c for
0000:05:00.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>program_fw_provided_values: Could
not get hotplug parameters<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>entering assign resources (size:
2000000)<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>PCI: Failed to allocate mem resource
#0:2000000@0 for 0000:05:00.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>bus pci: add device 0000:05:00.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>entering uevent<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pci: Trying to Match Device
0000:05:00.0 with Driver pcieport-driver<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pci: Trying to Match Device
0000:05:00.0 with Driver serial<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pci: Trying to Match Device
0000:05:00.0 with Driver pexntb<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: hpc_get_power_status:
SLOTCTRL 80 value read 8<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pciehp: hpc_get_attention_status:
SLOTCTRL 80, value read 8<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>02:06.0 PCI bridge: PLX Technology,
Inc.: Unknown device 8616 (rev bb) (prog-if 00 [<st1:place w:st="on"><st1:City
w:st="on">Normal</st1:City></st1:place> decode])<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Flags: bus master, fast devsel, latency 0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Bus: primary=02, secondary=05, subordinate=05, sec-latency=0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [40] Power Management version 3<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/2 Enable+<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [68] #10 [0162]<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [a4] #0d [0000]<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>05:00.0 Class ff00: Altera
Corporation: Unknown device 0004 (rev 01)<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Subsystem: Altera Corporation: Unknown device 0004<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Flags: fast devsel<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/5 Enable-<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [78] Power Management version 3<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>
Capabilities: [80] #10 [0001]<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>root@slave7 ~ # lspci -t<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>-+-[01]---00.0-[02-05]--+-01.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> |
+-04.0-[03]--<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> |
+-05.0-[04]--<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> |
\-06.0-[05]----00.0<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> \-[00]---00.0<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>-------------------------------------------------------------------------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>So, as you can see – the device has been read –
and it requires 32M of resources, but<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>because its parent doesn’t have any resources allocated
– it seemingly can’t allocate and<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>use any additional resources.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>How do I ‘customize’ and/or add resources at
this point for this device (using semi-standard mechanisms)?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks in advance for any/all ideas…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p style='margin-bottom:12.0pt'><strong><b><font size=2 color=navy
face=Verdana><span style='font-size:10.0pt;font-family:Verdana;color:navy'>Tom
Morrison</span></font></b></strong><font size=2 color=navy face=Verdana><span
style='font-size:10.0pt;font-family:Verdana;color:navy'><br>
</span></font><font color=navy><span style='color:navy'>Principal Software
Engineer</span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><strong><b><font size=2
color=navy face=Verdana><span style='font-size:10.0pt;font-family:Verdana;
color:navy'>EMPIRIX</span></font></b></strong><font size=2 color=navy
face=Verdana><span style='font-size:10.0pt;font-family:Verdana;color:navy'> </span></font><font
color=navy><span style='color:navy'><br>
<u1:Street u2:st="on"><u1:address u2:st="on"><st1:Street w:st="on"><st1:address
w:st="on">20 Crosby Drive</u1:address></u1:Street></st1:address></st1:Street> </span></font><b><font
color="#ff6600"><span style='color:#FF6600;font-weight:bold'>-</span></font></b><font
size=2 color=navy face=Verdana><span style='font-size:10.0pt;font-family:Verdana;
color:navy'> <u1:place u2:st="on"><u1:City u2:st="on"><st1:place w:st="on"><st1:City
w:st="on">Bedford</u1:City></st1:City>, <u1:State u2:st="on"><st1:State w:st="on">MA</u1:State></st1:State><b><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
font-family:"Times New Roman";color:black;font-weight:bold'> </span></font></b><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt;
font-family:"Times New Roman";color:black'> <u1:PostalCode u2:st="on"></span></font><st1:PostalCode
w:st="on">01730</u1:PostalCode></u1:place></st1:PostalCode></st1:place></span></font><br>
<b><font color="#ff6600"><span style='color:#FF6600;font-weight:bold'>p:</span></font></b><font
color="#ff6600"><span style='color:#FF6600'> </span></font><font size=2
color=navy face=Verdana><span style='font-size:10.0pt;font-family:Verdana;
color:navy'>781.266.3567 </span></font><b><font size=2 color="#ff6600"
face=Verdana><span style='font-size:10.0pt;font-family:Verdana;color:#FF6600;
font-weight:bold'>f:</span></font></b> <font size=2 color=navy face=Verdana><span
style='font-size:10.0pt;font-family:Verdana;color:navy'>781.266.3670 </span></font><b><span
style='font-weight:bold'><br>
</span></b><b><font size=2 color="#ff6600" face=Verdana><span style='font-size:
10.0pt;font-family:Verdana;color:#FF6600;font-weight:bold'>email:</span></font></b>
<u><font size=2 color=blue face=Verdana><span style='font-size:10.0pt;
font-family:Verdana;color:blue'><a href="mailto:tmorrison@empirix.com"><font
size=3><span style='font-size:12.0pt'>tmorrison@empirix.com</span></font></a></span></font></u><font
size=2 color=navy face=Verdana><span style='font-size:10.0pt;font-family:Verdana;
color:navy'> </span></font><font size=2 color="#ff6600" face=Verdana><span
style='font-size:10.0pt;font-family:Verdana;color:#FF6600'><br>
<a href="http://www.empirix.com/"><font size=3><span style='font-size:12.0pt'>www.empirix.com</span></font></a></span></font><font
size=2 color=navy face=Verdana><span style='font-size:10.0pt;font-family:Verdana;
color:navy'><br>
<br>
<br>
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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