** Changed in: pciutils (Ubuntu Xenial)
Status: New => In Progress
** Changed in: pciutils (Ubuntu Yakkety)
Status: New => In Progress
** Description changed:
+ [SRU Justification]
+ hardware enablement for next-gen hardware in a common hardware utility.
+
+ [Test case]
+ 1. On a system with a Mellanox CX5 card, run: lspci -vv -s 0001:01:00.2 |
grep Speed
+ 2. Verify that the output shows 'Speed unknown'.
+ 3. Install pciutils from -proposed.
+ 4. Run 'lspci -vv -s 0001:01:00.2 | grep Speed' again.
+ 5. Verify that the output shows 'Speed 16GT/s'.
+
+ [Regression potential]
+ Minimal, and none on systems without the new hardware; this is a code change
to trivially extend switch/case statements with a new value.
+
---Problem Description---
- This bugzilla is for tracking that the pciutils tool needs to be updated to
support pci gen4 cards. Mellanox CX5 card is a pci gen4 card and when I do the
following commands I get error. I do not see these errors with Mellanox CX4
which is pci gen3 card.
+ This bugzilla is for tracking that the pciutils tool needs to be updated to
support pci gen4 cards. Mellanox CX5 card is a pci gen4 card and when I do the
following commands I get error. I do not see these errors with Mellanox CX4
which is pci gen3 card.
In a system, with Mellanox CX4 and CX5 IB with SRIOV:
lspci | grep Mell
0001:01:00.0 Infiniband controller: Mellanox Technologies MT28800 Family
[ConnectX-5 Ex]
0001:01:00.1 Infiniband controller: Mellanox Technologies MT28800 Family
[ConnectX-5 Ex]
0001:01:00.2 Infiniband controller: Mellanox Technologies MT28800 Family
[ConnectX-5 Virtual Function]
0002:01:00.0 Infiniband controller: Mellanox Technologies MT27700 Family
[ConnectX-4]
0002:01:00.1 Infiniband controller: Mellanox Technologies MT27700 Family
[ConnectX-4]
0002:01:00.2 Infiniband controller: Mellanox Technologies MT27700 Family
[ConnectX-4 Virtual Function]
If I do this command with CX4 is ok
virsh nodedev-detach pci_0002_01_00_2
Device pci_0002_01_00_2 detached
but if I do this with CX5 it fails:
virsh nodedev-detach pci_0001_01_00_2
error: Failed to detach device pci_0001_01_00_2
error: malformed 'speed' attribute: (null)
This is what I see with CX5:
lspci -vv -s 0001:01:00.2 | grep Speed
LnkCap: Port #0, Speed unknown, Width x16, ASPM not supported, Exit Latency
L0s unlimited, L1 unlimited
LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt-
ABWMgmt-
and this is what I see for CX4
lspci -vv -s 0002:01:00.2 | grep Speed
LnkCap: Port #0, Speed 8GT/s, Width x16, ASPM not supported, Exit Latency L0s
unlimited, L1 unlimited
- LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt-
ABWMgmt-
-
+ LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt-
ABWMgmt-
+
---Additional Hardware Info---
using Mellanox CX5 card that is pci gen4
- lspci -vv -s 0001:01:00.0 | grep Speed
- LnkCap: Port #0, Speed unknown, Width x16, ASPM not
supported, Exit Latency L0s unlimited, L1 unlimited
- LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
- LnkCtl2: Target Link Speed: Unknown, EnterCompliance-
SpeedDis-
-
+ lspci -vv -s 0001:01:00.0 | grep Speed
+ LnkCap: Port #0, Speed unknown, Width x16, ASPM not
supported, Exit Latency L0s unlimited, L1 unlimited
+ LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
+ LnkCtl2: Target Link Speed: Unknown, EnterCompliance-
SpeedDis-
-
- Machine Type = P8
-
+ Machine Type = P8
+
---Steps to Reproduce---
- just plug a pci gen4 card to the system and do this command
+ just plug a pci gen4 card to the system and do this command
lspci -vv -s 0001:01:00.0 | grep Speed
- LnkCap: Port #0, Speed unknown, Width x16, ASPM not
supported, Exit Latency L0s unlimited, L1 unlimited
- LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
- LnkCtl2: Target Link Speed: Unknown, EnterCompliance-
SpeedDis-
+ LnkCap: Port #0, Speed unknown, Width x16, ASPM not
supported, Exit Latency L0s unlimited, L1 unlimited
+ LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
+ LnkCtl2: Target Link Speed: Unknown, EnterCompliance-
SpeedDis-
Will see the speed unknown.
-
- Userspace tool common name: pciutils
-
+
+ Userspace tool common name: pciutils
+
The patch is already in the pci utils tree:
commit 9628600bbbeffc4ec6dc48943ee091a5d3eca18b
Author: Gavin Shan <[email protected]>
Date: Wed Feb 15 10:53:45 2017 +1100
- lspci: Support GEN4 speed (16GT/s)
+ lspci: Support GEN4 speed (16GT/s)
- This enables "lspci" to show GEN4 speed (16GT/s) properly according
- to the contents in register PCI_EXP_LNKCAP, PCI_EXP_LNKSTA and
- PCI_EXP_LNKCTL2.
+ This enables "lspci" to show GEN4 speed (16GT/s) properly according
+ to the contents in register PCI_EXP_LNKCAP, PCI_EXP_LNKSTA and
+ PCI_EXP_LNKCTL2.
IBM is asking for the patch to go into 17.04 as well s 16.04.3.
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https://bugs.launchpad.net/bugs/1665436
Title:
lspci tool needs to be updated to support pci gen4 cards
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