[hns-1126]net: hns3: fix flow control configure issue for fibre port

[Fred Kimmy]

[Impact]
Flow control parameters of fibre port can not be set after enable flow control autoneg, as flow control autoneg is unsupported for fibre port

[Test Case]
Turning on/off tx pause and ethtool shall report status accordingly.

[Fix]
fb89629f2ecf net: hns3: fix flow control configure issue for fibre port

[Regression Risk]
Patch restricted to hns3 driver.

"[Bug Description]
Flow control parameters of fibre port can not be set after enable flow control autoneg, as flow control autoneg is unsupported for fibre port.

[Steps to Reproduce]
1.link up fibre port and enable flow control autoneg
2.check status of tx pause and rx pause
3.turn off tx pause
4.checkout status of tx pause

[Actual Results]
tx pause is on

[Expected Results]
tx pause is off

[Reproducibility]
Inevitably

[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA

[Resolution]
This patch return -EOPNOTSUPP when user tries to enable flow control autoneg."

net: hns3: fix flow control configure issue for fibre port

[Ike Panhc (ikepanhc)]

Patch sent. https://lists.ubuntu.com/archives/kernel-team/2020-January/106574.html

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-disco' to 'verification-done-disco'. If the problem still exists, change the tag 'verification-needed-disco' to 'verification-failed-disco'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Ike Panhc (ikepanhc)]

Thanks. Ubuntu-5.0.0-40.44 works for me.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 5.0.0-40.44

---------------
linux (5.0.0-40.44) disco; urgency=medium

  * disco/linux: 5.0.0-40.44 -proposed tracker (LP: #1859724)

  * use-after-free in i915_ppgtt_close (LP: #1859522) // CVE-2020-7053
    - SAUCE: drm/i915: Fix use-after-free when destroying GEM context

  * CVE-2019-14615
    - drm/i915/gen9: Clear residual context state on context switch

  * System hang with kernel traces while entering reboot process on a Disco
    ARM64 moonshot node (LP: #1859582)
    - Revert "RDMA/cm: Fix memory leak in cm_add/remove_one"

linux (5.0.0-39.43) disco; urgency=medium

  * disco/linux: 5.0.0-39.43 -proposed tracker (LP: #1858547)

  * [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?
    (LP: #1856608)
    - SAUCE: Revert "usb: handle warm-reset port requests on hub resume"

  * PAN is broken for execute-only user mappings on ARMv8 (LP: #1858815)
    - arm64: Revert support for execute-only user mappings

  * Fix unusable USB hub on Dell TB16 after S3 (LP: #1855312)
    - SAUCE: USB: core: Make port power cycle a seperate helper function
    - SAUCE: USB: core: Attempt power cycle port when it's in eSS.Disabled state

  * [sas-1126]scsi: hisi_sas: Fix out of bound at debug_I_T_nexus_reset()
    (LP: #1853992)
    - scsi: hisi_sas: Fix out of bound at debug_I_T_nexus_reset()

  * [sas-1126]scsi: hisi_sas: Assign NCQ tag for all NCQ commands (LP: #1853995)
    - scsi: hisi_sas: Assign NCQ tag for all NCQ commands

  * [sas-1126]scsi: hisi_sas: Fix the conflict between device gone and host
    reset (LP: #1853997)
    - scsi: hisi_sas: Fix the conflict between device gone and host reset

  * scsi: hisi_sas: Check sas_port before using it (LP: #1855952)
    - scsi: hisi_sas: Check sas_port before using it

  * CVE-2019-18885
    - btrfs: refactor btrfs_find_device() take fs_devices as argument
    - btrfs: merge btrfs_find_device and find_device

  * Integrate Intel SGX driver into linux-azure (LP: #1844245)
    - [Packaging] Add systemd service to load intel_sgx

  * [SRU][B/OEM-B/OEM-OSP1/D/E/F] Add LG I2C touchscreen multitouch support
    (LP: #1857541)
    - SAUCE: HID: multitouch: Add LG MELF0410 I2C touchscreen support

  * cifs: DFS Caching feature causing problems traversing multi-tier DFS setups
    (LP: #1854887)
    - cifs: Fix retrieval of DFS referrals in cifs_mount()

  * qede driver causes 100% CPU load (LP: #1855409)
    - qede: Handle infinite driver spinning for Tx timestamp.

  * [roce-1126]RDMA/hns: bugfix for slab-out-of-bounds when loading hip08 driver
    (LP: #1853989)
    - RDMA/hns: Bugfix for slab-out-of-bounds when unloading hip08 driver
    - RDMA/hns: bugfix for slab-out-of-bounds when loading hip08 driver

  * [roce-1126]RDMA/hns: Fixs hw access invalid dma memory error (LP: #1853990)
    - RDMA/hns: Fixs hw access invalid dma memory error

  * [hns-1126]net: hns3: revert to old channel when setting new channel num fail
    (LP: #1853983)
    - net: hns3: revert to old channel when setting new channel num fail

  * [hns-1126]net: hns3: fix port setting handle for fibre port
    (LP: #1853984)
    - net: hns3: fix port setting handle for fibre...

[Andrew Cloke (andrew-cloke)]

18.04.4 has now been released.

[Ike Panhc (ikepanhc)]

Can not clean cherry-pick to bionic GA kernel.