Description of problem:
Chapter 16. SR-IOV is incomplete.
Version-Release number of selected component (if applicable):
Wed 03 Mar 2010 04:29:39 PM EST
Chapter 16. SR-IOV
[mdoyle] Chapter incomplete, some sentences are half finished.
16.3. How SR-IOV Libvirt Works
[mdoyle] Figure is missing.
[mdoyle] Descriptions of the steps are incomplete and not properly edited.
Fixed in build 111. Please verify as soon as possible.
Couple of questions/points:
1. This only works (at present) on a particular Intel NIC. Should we mention this (could not find any mention in rel notes)?
2. Step 7. "In this example the Virtual Function pci_8086_10ca_0 is added to the guest." needs clarification as it appears that step 9. is explaining how to do this.
3. Step 9b. converts the values to hex, but 9d uses the original decimal values.
Need to check if we also support the Neterion X3100.
I downloaded the driver and it's rather strange... installs into /lib/modules/2.6.18-164.el5/kernel/drivers/net/vxge.ko regardless of the kernel :-/
however the README suggests that these are the params we want:
Change PCI function mode.
0 - SF1_VP17 (1 function with 17 VPATHs)
1 - MF8_VP2 (8 functions with 2 VPATHs per function)
2 - SR17_VP1 (17 VFs with 1 VPATH per VF)
3 - MR17_VP1 (17 Virtual Hierarchies, 1 Path/Function/Hierarchy)
4 - MR8_VP2 (8 Virtual Hierarchies, 2 Path/Function/Hierarchy)
5 - MF17_VP1 (17 functions, 1 Path/Function (PCIe ARI))
6 - SR8_VP2 (1PF, 7VF, 2 Paths/Function)
7 - SR4_VP4 (1PF, 3VF, 4 Paths/Function)
8 - MF2_VP8 (2 functions, 8 Paths/Function)
9 - MF4_VP4 (4 Functions, 4 Paths/Function)
10 - MR4_VP4 (4 Virtual Hierarchies, 4 Path/Function/Hierarchy)
Fixed step 7 and 9b/d.
It may have been missed from the release notes. It is possible someone forgot.
I'm not certain about step 9. I don't have the hardware to test if detaching pci_8086_10ca and pci_8086_10ca_0 is necessary or whether pci_8086_10ca should be used.
As for the Neterion card, I don't know. Setting NEED_INFO.
Done please answer it. There is also nice documentation Don created:
Thanks Dor, that list helps a lot.
Don, still wondering which cards we are supporting for 5.4, 5.5 and 6.
Is there any chance of getting that KvmXenDeviceAssignment.html doc available externally?
No access to the RH Intranet here. ;)