http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1552
Summary: [SR-IOV] old 0.9v VF driver cannot work in guest
Product: Xen
Version: unstable
Platform: Other
OS/Version: Linux-2.6
Status: NEW
Severity: normal
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: jiajun.xu@xxxxxxxxx
Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32/ia32e
Guest Arch (ia32/ia32e/IA64): ia32/ia32e
Guest OS Type (Linux/Windows): Linux
Change Set: 20572
Hardware: NHM-HEDT
Other:
xen-changeset: 20572:0f35fb4f73d6
pvops git:
commit afdf5a333a50ac0e406099f1c243719601b7c625
Merge: cd8dd45... bb3c471...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
ioemu git:
commit f72b6e0ffc3bb84d4442c5a7493bffbdce2a4468
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date: Wed Nov 4 17:07:57 2009 +0000
tboot changeset:
changeset: 176:e57acd4d1460
tag: tip
user: Shane Wang <shane.wang@xxxxxxxxx>
date: Fri Oct 16 04:03:14 2009 -0700
summary: Fixed a timeout bug in 163
Bug detailed description:
--------------------------
With latset xen, old VF driver can not work in guest. VF can not get IP. And
Qemu will report msix mapping error. Driver version is 0.9.5, which can work
well with old c/s 20382.
BTW, VF can work with latest xen + 1.0 VF driver.
The old VF driver version:
filename: /lib/modules/2.6.18.8/kernel/drivers/net/igbvf/igbvf.ko
version: 0.9.5
license: GPL
description: Intel(R) 82576 Virtual Function
author: Intel Corporation, <linux.nics@xxxxxxxxx>
srcversion: A863DEF3DE3833D294DD8EB
alias: pci:v00008086d000010CAsv*sd*bc*sc*i*
depends:
vermagic: 2.6.18.8 SMP mod_unload 686 REGPARM 4KSTACKS gcc-4.1
parm: copybreak:Maximum size of packet that is copied to a new buffer
on receive (uint)
parm: TxIntDelay:Transmit Interrupt Delay (array of int)
parm: TxAbsIntDelay:Transmit Absolute Interrupt Delay (array of int)
parm: RxIntDelay:Receive Interrupt Delay (array of int)
parm: RxAbsIntDelay:Receive Absolute Interrupt Delay (array of int)
parm: InterruptThrottleRate:Interrupt Throttling Rate (array of int)
parm: IntMode:Interrupt Mode (array of int)
The latest VF driver version:
filename: /lib/modules/2.6.31.4/kernel/drivers/net/igbvf/igbvf.ko
version: 1.0.0-k0
license: GPL
description: Intel(R) 82576 Virtual Function Network Driver
author: Intel Corporation, <e1000-devel@xxxxxxxxxxxxxxxxxxxxx>
srcversion: 4BDD6BE8489C9579E66C962
alias: pci:v00008086d000010CAsv*sd*bc*sc*i*
depends:
vermagic: 2.6.31.4 SMP mod_unload 686
The qemu log when loading 0.9.5 VF driver + latest xen:
########
domid: 3
qemu: the number of cpus is 2
Strip off blktap sub-type prefix to /share/xvs/var/img.vmxVTD_ASS_02_1 (drv
'qcow')
Watching /local/domain/0/device-model/3/logdirty/cmd
Watching /local/domain/0/device-model/3/command
char device redirected to /dev/pts/4
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = a370d1f1-8e4a-46fd-e51b-e96f2bc9f164
Time offset set 0
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/3/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error.
/vm/a370d1f1-8e4a-46fd-e51b-e96f2bc9f164/vncpasswd.
medium change watch on `hdc' (index: 2):
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
Log-dirty: no command yet.
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
xs_read(/local/domain/3/log-throttling): read error
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 01:10.0 ...
pt_dev_is_virtfn: 0000:01:10.0 is a SR-IOV Virtual Function
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such
file or directory: 0x1:0x10.0x0
pt_register_regions: IO region registered (size=0x00004000
base_addr=0xd3840004)
pt_register_regions: IO region registered (size=0x00004000
base_addr=0xd3860004)
pt_msix_init: get MSI-X table bar base d3860000
pt_msix_init: table_off = 0, total_entries = 3
pt_msix_init: errno = 2
pt_msix_init: mapping physical MSI-X table to 7f415af63000
register_real_device: Real physical device 01:10.0 registered successfuly!
IRQ type = INTx
cirrus vga map change while on lfb mode
pt_iomem_map: e_phys=f3000000 maddr=d3840000 type=0 len=16384 index=0
first_map=1
pt_iomem_map: e_phys=f3004000 maddr=d3860000 type=0 len=16384 index=3
first_map=1
mapping vram to f0000000 - f0400000
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.
pt_pci_write_config: Warning: Guest attempt to set address to unused Base
Address Register. [00:04.0][Offset:30h][Length:4]
pt_msix_update_one: Update msix entry 0 with pirq 0 gvec b1
pt_msix_update_one: Error: Updating msix irq info for entry 0
pt_msix_update_one: Error: Unmapping of MSI-X failed.
pt_msix_update_one: Update msix entry 1 with pirq 37 gvec b9
########
The qemu log when loading 0.9.5 VF driver + old c/s 20382 xen:
########
domid: 1
qemu: the number of cpus is 2
Strip off blktap sub-type prefix to /share/xvs/var/img.vmxVTD_ASS_02_1 (drv
'qcow')
Watching /local/domain/0/device-model/1/logdirty/cmd
Watching /local/domain/0/device-model/1/command
char device redirected to /dev/pts/4
qemu_map_cache_init nr_buckets = 4000 size 327680
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = e3758eaf-68a4-0ad3-6841-caa5962ef1d5
Time offset set 0
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/1/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error.
/vm/e3758eaf-68a4-0ad3-6841-caa5962ef1d5/vncpasswd.
medium change watch on `hdc' (index: 2):
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
Log-dirty: no command yet.
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
xs_read(/local/domain/1/log-throttling): read error
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 01:10.0 ...
pt_dev_is_virtfn: 0000:01:10.0 is a SR-IOV Virtual Function
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such
file or directory: 0x1:0x10.0x0
pt_register_regions: IO region registered (size=0x00004000
base_addr=0xd3840004)
pt_register_regions: IO region registered (size=0x00004000
base_addr=0xd3860004)
pt_msix_init: get MSI-X table bar base d3860000
pt_msix_init: mapping physical MSI-X table to b604b000
register_real_device: Real physical device 01:10.0 registered successfuly!
IRQ type = INTx
cirrus vga map change while on lfb mode
pt_iomem_map: e_phys=f3000000 maddr=d3840000 type=0 len=16384 index=0
first_map=1
pt_iomem_map: e_phys=f3004000 maddr=d3860000 type=0 len=16384 index=3
first_map=1
mapping vram to f0000000 - f0400000
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro state.
pt_pci_write_config: Warning: Guest attempt to set address to unused Base
Address Register. [00:04.0][Offset:30h][Length:4]
pt_msix_update_one: Update msix entry 0 with pirq 37 gvec b1
pt_msix_update_one: Update msix entry 1 with pirq 36 gvec b9
pt_msix_update_one: Update msix entry 0 with pirq 37 gvec b1
pt_msix_update_one: Update msix entry 0 with pirq 37 gvec b1
########
Reproduce steps:
----------------
1. Get the image from vt-nfs:/images/sriov
2. Boot from the 2.6.18.8 kernel, which includes 0.9.5 VF driver
3. To boot from latest VF driver, you can boot from the entry named "2.6.30"
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