[roce-0227]sync mainline kernel 5.6rc3 roce patchset into ubuntu HWE kernel branch

Only one patch found in mainline kernel for v5.6-rc4

10dcc7448e9e RDMA/hns: fix spelling mistake "attatch" -> "attach"

@IKE
can you backport this roce patchset into ubuntu 18.04.5 (20.04) kernel version? thank you.

@Xinwei,

Those patches are expected to hit mainline kernel on 5.7 merge window. I will proceed after they hit mainline.

this aboving patchset will slove flush CQE error for roce modules. it be tiggered when QP is detected to be in errored stateduring various legs like post send, post receive etc.

Could you pick up those fixes and prepare the test case for me to reproduce?

Some of the patches are saying "Optimize" and they do not look like a fix for error.

@ike
Can you push this critical patchset into ubuntu focal kernel.

RDMA/hns: Support to set mininum depth of qp to 0
RDMA/hns: Treat revision HIP08_A as a special case
RDMA/hns: Delayed flush cqe process with workqueue
RDMA/hns: Add the workqueue framework for flush cqe handler
RDMA/hns: Stop doorbell update while qp state error
RDMA/hns: Use flush framework for the case in aeq

There are several feedback for "RDMA/hns: Support to set mininum depth of qp to 0" and the patch are not ACKed. I believe we shall wait until it has better status.

the patch have been acked as following:
RDMA/hns: Check if depth of qp is 0 before configure
https://www.spinics.net/lists/linux-rdma/msg89826.html

Subject: RDMA/hns: Treat revision HIP08_A as a special case

Set revisions that equal to or higher than HIP08_B as default to maintain
backward compatibility.

This patch is more like an extension on hardware ID then a fix. I will handle this patch during SRU cycle.

On 3/26/20 2:02 PM, Fred Kimmy wrote:
> the patch have been acked as following:
> RDMA/hns: Check if depth of qp is 0 before configure
> https://www.spinics.net/lists/linux-rdma/msg89826.html
>

This patch is highly depends on "RDMA/hns: Optimize qp param setup flow". I will process after these patches landed on upstream kernel.

5 patches can be cherry-picked cleanly and in my branch for testing.

RDMA/hns: Stop doorbell update while qp state error
RDMA/hns: Use flush framework for the case in aeq
RDMA/hns: Initialize all fields of doorbells to zero
RDMA/hns: Delayed flush cqe process with workqueue
RDMA/hns: Add the workqueue framework for flush cqe handler

Please refer to my git branch for reference

https://kernel.ubuntu.com/git/ikepanhc/public.git/log/?h=kunpeng920_wip

All patches has been merged into mainline kernel.

Patches sent.

https://lists.ubuntu.com/archives/kernel-team/2020-April/108768.html

Patches has been applied to focal/master-next

https://lists.ubuntu.com/archives/kernel-team/2020-April/108836.html

This bug was fixed in the package linux - 5.4.0-24.28

---------------
linux (5.4.0-24.28) focal; urgency=medium

  * focal/linux: 5.4.0-24.28 -proposed tracker (LP: #1871939)

  * getitimer returns it_value=0 erroneously (LP: #1349028)
    - [Config] CONTEXT_TRACKING_FORCE policy should be unset

  * 12d1:1038 Dual-Role OTG device on non-HNP port - unable to enumerate USB
    device on port 1 (LP: #1047527)
    - [Config] USB_OTG_FSM policy not needed

  * Add DCPD backlight support for HP CML system (LP: #1871589)
    - SAUCE: drm/i915: Force DPCD backlight mode for HP CML 2020 system

  * Backlight brightness cannot be adjusted using keys (LP: #1860303)
    - SAUCE drm/i915: Force DPCD backlight mode for HP Spectre x360 Convertible
      13t-aw100

  * CVE-2020-11494
    - slcan: Don't transmit uninitialized stack data in padding

  * Ubuntu Kernel Support for OpenPOWER NV Secure & Trusted Boot (LP: #1866909)
    - powerpc: Detect the secure boot mode of the system
    - powerpc/ima: Add support to initialize ima policy rules
    - powerpc: Detect the trusted boot state of the system
    - powerpc/ima: Define trusted boot policy
    - ima: Make process_buffer_measurement() generic
    - certs: Add wrapper function to check blacklisted binary hash
    - ima: Check against blacklisted hashes for files with modsig
    - powerpc/ima: Update ima arch policy to check for blacklist
    - powerpc/ima: Indicate kernel modules appended signatures are enforced
    - powerpc/powernv: Add OPAL API interface to access secure variable
    - powerpc: expose secure variables to userspace via sysfs
    - x86/efi: move common keyring handler functions to new file
    - powerpc: Load firmware trusted keys/hashes into kernel keyring
    - x86/efi: remove unused variables

  * [roce-0227]sync mainline kernel 5.6rc3 roce patchset into ubuntu HWE kernel
    branch (LP: #1864950)
    - RDMA/hns: Cleanups of magic numbers
    - RDMA/hns: Optimize eqe buffer allocation flow
    - RDMA/hns: Add the workqueue framework for flush cqe handler
    - RDMA/hns: Delayed flush cqe process with workqueue
    - RDMA/hns: fix spelling mistake: "attatch" -> "attach"
    - RDMA/hns: Initialize all fields of doorbells to zero
    - RDMA/hns: Treat revision HIP08_A as a special case
    - RDMA/hns: Use flush framework for the case in aeq
    - RDMA/hns: Stop doorbell update while qp state error
    - RDMA/hns: Optimize qp destroy flow
    - RDMA/hns: Optimize qp context create and destroy flow
    - RDMA/hns: Optimize qp number assign flow
    - RDMA/hns: Optimize qp buffer allocation flow
    - RDMA/hns: Optimize qp param setup flow
    - RDMA/hns: Optimize kernel qp wrid allocation flow
    - RDMA/hns: Optimize qp doorbell allocation flow
    - RDMA/hns: Check if depth of qp is 0 before configure

  * [hns3-0316]sync mainline kernel 5.6rc4 hns3 patchset into ubuntu HWE kernel
    branch (LP: #1867586)
    - net: hns3: modify an unsuitable print when setting unknown duplex to fibre
    - net: hns3: add enabled TC numbers and DWRR weight info in debugfs
    - net: hns3: add support for dump MAC ID and loopback status in debugfs
    - net: hns3: add missing help info for QS shaper...