** Changed in: linux (Ubuntu Utopic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1392021
Title:
Ubuntu 15.04 [genwqe_start] err: could not setup servicelayer
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Utopic:
Fix Committed
Status in “linux” source package in Vivid:
Fix Released
Bug description:
[Impact]
The IBM GenWQE Accelerator Adapter does not work correctly in the latest 3.16
kernel.
[Test Case]
1) Create a guest system on PowerKVM using image disk file, install from
virutal SCSI DVD. Especially assign the GenWQE card via PCI passthrough.
2) Start up the guest
3) lspci -knd :044b
3) dmesg|grep genwqe
4) ) modprobe genwqe_card.ko
No module is assigned to the card
5) ls -l /dev/genwq* shows no file at all.
One device file would be expected here.
[Fix]
The following patches cleanly cherry-pick into 3.16
1451f41 GenWQE: Support blocking when DDCB queue is busy
08e4906 GenWQE: Fix problem when reading HSI and Retc
d9c11d4 GenWQE: Fix checkpatch complaints
bc407dd GenWQE: Check return code of pci_sriov_enable
2d880cc GenWQE: Do not modify return code of genwqe_set_interrupt_capability
26d8f6f GenWQE: Update author information
64df2ec GenWQE: Remove sysfs entry for driver version
95a8825 GenWQE: Check pci_get_totalvfs return code
32182cd misc: remove DEFINE_PCI_DEVICE_TABLE usage
5b35b20 GenWQE: Remove unnecessary include
7276883 misc/GenWQE: fix pci_enable_msi usage
d584f69 GenWQE: Increase driver version number
93b772b GenWQE: Improve hardware error recovery
fb14545 GenWQE: Add support for EEH error recovery
c1f732a GenWQE: Add sysfs interface for bitstream reload
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== Comment: #0 - Christian Rund <[email protected]> - 2014-11-11
10:45:12 ==
---Problem Description---
In our opinion the 2.0.15 version of the IBM GenWQE Accelerator Adapter
driver part of Ubuntu 15.04 is not working. A higher version would be needed.
The driver is part of the linux-image-extra-3.16.0-24-generic package.
[ 3.330906] genwqe 0001:00:02.0: enabling device (0140 -> 0142)
[ 3.332443] genwqe 0001:00:02.0: ibm,query-pe-dma-windows(26200000) 1
8000000 20000001 returned 0
[ 3.333159] genwqe 0001:00:02.0: ibm,create-pe-dma-window(27200000) 1
8000000 20000001 10 1f returned -1 (liobn = 0x0 starting addr = 0 0)
[ 4.403223] genwqe 0001:00:02.0: [genwqe_start] err: could not setup
servicelayer!
[ 4.403333] genwqe 0001:00:02.0: err: cannot start card services! (err=-5)
[ 4.404471] genwqe: probe of 0001:00:02.0 failed with error -5
[321140.194392] genwqe_card: module verification failed: signature and/or
required key missing - tainting kernel
modinfo genwqe_card
filename:
/lib/modules/3.16.0-24-generic/kernel/drivers/misc/genwqe/genwqe_card.ko
license: GPL
version: 2.0.15
description: GenWQE Card
author: Michal Jung <[email protected]>
author: Joerg-Stephan Vogt <[email protected]>
author: Michael Ruettger <[email protected]>
author: Frank Haverkamp <[email protected]>
srcversion: 69FBCA52AFAF3B71342E43B
alias: pci:v00001014d0000044Bsv00001014sd0000044Bbc12sc00i00*
alias: pci:v00001014d00000000sv00000000sd0000035Fbc12sc00i00*
alias: pci:v00001014d0000044Bsv00000000sd0000035Fbc12sc00i00*
alias: pci:v00001014d00000000sv00000000sd00000000bc12sc00i00*
alias: pci:v00001014d0000044Bsv00000000sd00000000bc12sc00i00*
alias: pci:v00001014d0000044Bsv00001014sd0000035Fbc12sc00i00*
depends: crc-itu-t
intree: Y
vermagic: 3.16.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 32:F4:D0:34:89:C6:7C:D7:71:67:94:F6:0C:00:D7:F7:E8:D2:78:0E
sig_hashalgo: sha512
Contact Information = [email protected], Frank Haverkamp
[email protected]
---uname output---
Linux tulg3 3.16.0-24-generic #32-Ubuntu SMP Tue Oct 28 13:06:19 UTC 2014
ppc64le ppc64le ppc64le GNU/Linux
---Additional Hardware Info---
0001:00:02.0 Processing accelerators: IBM GenWQE Accelerator Adapter
Class: 1200 VendorID: 1014 DeviceId: 044b assigned to the PowerKVM guest
via PCI passthrough (vfio-pci)
Machine Type = 8284-22A PowerKVM
---Debugger---
A debugger is not configured
---Steps to Reproduce---
1) Create a guest system on PowerKVM using image disk file, install from
virutal SCSI DVD. Especially assign the GenWQE card via PCI passthrough.
2) Start up the guest
3) lspci -knd :044b
3) dmesg|grep genwqe
4) ) modprobe genwqe_card.ko
No module is assigned to the card
5) ls -l /dev/genwq* shows no file at all.
One device file would be expected here.
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
*Additional Instructions for [email protected], Frank Haverkamp
[email protected]:
-Attach sysctl -a output output to the bug.
== Comment: #2 - Frank Haverkamp <[email protected]> - 2014-11-12 05:09:24
==
Christian and I tried out CVS version of the driver and that works. Ubuntu
picked and unfortunate intermediate version of the driver which had broken irq
registration. This was fixed later by Sebastian Ott and Kleber and I added on
top of that some more patches which did cleanups and more importantly added
System p specific recovery features e.g. like EEH handlers and a method to
reload the bitstream for p.
Therefore it would be great if someone could have the Ubuntu folks
pickup the latest version from Kernel.org.
I know that Greg KH has a good version of the code in his tree. We
need to check if that has made it yet into Linux version (both should
be the same).
== Comment: #3 - Frank Haverkamp <[email protected]> - 2014-11-12 07:58:03
==
Christian has checked the linux.git version of the genwqe_card driver
compiled against his Ubuntu kernel and found it working.
SHA is 206c5f60a3d902bc4b56dab2de3e88de5eb06108.
Patched affecting the driver are usually prefixed with GenWQE or genwqe
7276883f1f98cd0a92fdc049f69bdc0912f7fc16 misc/GenWQE: fix pci_enable_msi usage
was the one which fixed the problem introduced by
a30d0108b09ae46d24594a2e699c4dad21bb4af4 Use pci_enable_msi_exact() instead
of pci_enable_msi_block()
So please have a look how we convince the Ubuntu folks to update their
version of the code. Thanks.
== Comment: #5 - Christian Rund <[email protected]> - 2014-11-12
08:26:17 ==
Confirm that version 2.0.25 built against the mainline kernel is working for
us.
Used given SHA based on Linux 3.18-rc4, paid attention to the new
genwqe_card.h file.
To make matters worse the picked 2.0.15 version leads to system hung soon
after the dmesg messages described above (i.e. when the genwqe_card module is
loaded).
Thus raising priority to P2 normal.
Hope Franks and my comments answer 'more info'. Setting state back to
open.
crund@tulg3:~/driver-core/drivers/misc/genwqe$ make -C
/lib/modules/3.16.0-24-generic/build
SUBDIRS=/home/crund/driver-core/drivers/misc/genwqe
EXTRA_CFLAGS="-I/home/crund/driver-core/include/uapi -Wuninitialized
-DCONFIG_GENWQE_PLATFORM_ERROR_RECOVERY=1" modules
make: Entering directory '/usr/src/linux-headers-3.16.0-24-generic'
CC [M] /home/crund/driver-core/drivers/misc/genwqe/card_base.o
CC [M] /home/crund/driver-core/drivers/misc/genwqe/card_dev.o
CC [M] /home/crund/driver-core/drivers/misc/genwqe/card_ddcb.o
CC [M] /home/crund/driver-core/drivers/misc/genwqe/card_sysfs.o
CC [M] /home/crund/driver-core/drivers/misc/genwqe/card_debugfs.o
CC [M] /home/crund/driver-core/drivers/misc/genwqe/card_utils.o
LD [M] /home/crund/driver-core/drivers/misc/genwqe/genwqe_card.o
Building modules, stage 2.
MODPOST 1 modules
CC /home/crund/driver-core/drivers/misc/genwqe/genwqe_card.mod.o
LD [M] /home/crund/driver-core/drivers/misc/genwqe/genwqe_card.ko
make: Leaving directory '/usr/src/linux-headers-3.16.0-24-generic'
crund@tulg3:~/driver-core/drivers/misc/genwqe$ su
Password:
root@tulg3:/home/crund/driver-core/drivers/misc/genwqe# cat
/sys/kernel/debug/genwqe/genwqe0_card/info
genwqe driver version: 2.0.25
Device Name/Type: 0001:00:02.0 Physical CardIdx: 0
SLU/APP Config : 0x00000b0330342260/0x00000002475a4950
Build Date : 2/26/2014
Base Clock : 175 MHz
Arch/SVN Release: 3/b
Bitstream : 1
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