** Changed in: linux (Ubuntu Disco)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Eoan)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1853983
Title:
[hns-1126]net: hns3: revert to old channel when setting new channel
num fail
Status in kunpeng920:
In Progress
Status in kunpeng920 ubuntu-18.04 series:
Won't Fix
Status in kunpeng920 ubuntu-18.04-hwe series:
Fix Committed
Status in kunpeng920 ubuntu-19.04 series:
In Progress
Status in kunpeng920 ubuntu-19.10 series:
In Progress
Status in kunpeng920 ubuntu-20.04 series:
Fix Committed
Status in kunpeng920 upstream-kernel series:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Disco:
Fix Committed
Status in linux source package in Eoan:
Fix Committed
Status in linux source package in Focal:
Fix Released
Bug description:
[Impact]
With specific ethtool commands, ethernet does not work
[Test Case]
run VF on VM with 3G memory and load VF driver
ethtool -G eth0 tx 30000 rx 30000
ethtool -G eth0 tx 24 rx 24；ethtool -L eth0 combined 1
ethtool -G eth0 tx 32760 rx 32760
ethtool -L eth0 combined 32
ethernet shall still be functional after these commands
[Fix]
3a5a5f06d4d2 net: hns3: revert to old channel when setting new channel num
fail
[Regression Risk]
Patch restricted to hns3 driver.
"[Bug Description]
After setting new channel num, it needs free old ring memory and
allocate new ring memory. If there is no enough memory and allocate
new ring memory fail, the ring may initialize fail. To make sure
the network interface can work normally, driver should revert the
channel to the old configuration.
[Steps to Reproduce]
1.run VF on VM with 3G memory
2.load VF driver
3.ethtool -G eth0 tx 30000 rx 30000
4.ethtool -G eth0 tx 24 rx 24；ethtool -L eth0 combined 1
5.ethtool -G eth0 tx 32760 rx 32760
6.ethtool -L eth0 combined 32
7.ping
[Actual Results]
netdevice can not work
[Expected Results]
ping ok
[Reproducibility]
Inevitably
[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA
[Resolution]
Revert the channel to the old configuration when allocate new ring memory
fail."
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