** Description changed:

  [Impact]
  sysfs continues to expose a valid phy linkrate even after the phy has been 
disabled.
  
  [Test Case]
  Using hisi_sas, a libsas-based driver:
  (initramfs) cd /sys/class/sas_phy/phy-0\:0\:20
  (initramfs) cat negotiated_linkrate
  12.0 Gbit
  (initramfs) echo 0 > enable
  [   59.172411] hisi_sas_v3_hw 0000:74:02.0: phydown: phy0 phy_state=0xfe
  [   59.178851] hisi_sas_v3_hw 0000:74:02.0: erroneous completion iptt=4028 
task=00000000bb3ab63f dev id=1 CQ hdr: 0x1103 0x10fbc 0x0 0x20000 Error info: 
0x0 0x4000000 0x0 0x0
  [   59.194139] sas: smp_execute_task_sg: task to dev 500e004aaaaaaa1f 
response: 0x0 status 0x2
  (initramfs) cat negotiated_linkrate
  12.0 Gbit
  
+ (Note to self: d06-1 has the setup to reproduce this)
+ 
  [Fix]
  d8649fc1c5e40 scsi: libsas: Do discovery on empty PHY to update PHY info
  085f104a83d56 scsi: libsas: Inject revalidate event for root port event
  
  [Regression Risk]
  Impact is limited to drivers built on top of libsas.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1830435

Title:
  libsas: old linkrate advertised after phy disabled

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1830435/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to