Subject: Re: [PATCH net-next v6 00/25] Multiple improvement to qca8k stability

From: [email-masked]
Date: Fri, 14 May 2021 22:40:16 +0000

Hello:

This series was applied to netdev/net-next.git (refs/heads/master):

On Fri, 14 May 2021 22:59:50 +0200 you wrote:
> Currently qca8337 switch are widely used on ipq8064 based router.
> On these particular router it was notice a very unstable switch with
> port not link detected as link with unknown speed, port dropping
> randomly and general unreliability. Lots of testing and comparison
> between this dsa driver and the original qsdk driver showed lack of some
> additional delay and values. A main difference arised from the original
> driver and the dsa one. The original driver didn't use MASTER regs to
> read phy status and the dedicated mdio driver worked correctly. Now that
> the dsa driver actually use these regs, it was found that these special
> read/write operation required mutual exclusion to normal
> qca8k_read/write operation. The add of mutex for these operation fixed
> the random port dropping and now only the actual linked port randomly
> dropped. Adding additional delay for set_page operation and fixing a bug
> in the mdio dedicated driver fixed also this problem. The current driver
> requires also more time to apply vlan switch. All of these changes and
> tweak permit a now very stable and reliable dsa driver and 0 port
> dropping. This series is currently tested by at least 5 user with
> different routers and all reports positive results and no problems.
> 
> [...]

Here is the summary with links:
  - [net-next,v6,01/25] net: dsa: qca8k: change simple print to dev variant
    https://git.kernel.org/netdev/net-next/c/5d9e068402dc
  - [net-next,v6,02/25] net: dsa: qca8k: use iopoll macro for qca8k_busy_wait
    https://git.kernel.org/netdev/net-next/c/2ad255f2faaf
  - [net-next,v6,03/25] net: dsa: qca8k: improve qca8k read/write/rmw bus access
    https://git.kernel.org/netdev/net-next/c/504bf6593182
  - [net-next,v6,04/25] net: dsa: qca8k: handle qca8k_set_page errors
    https://git.kernel.org/netdev/net-next/c/ba5707ec58cf
  - [net-next,v6,05/25] net: dsa: qca8k: handle error with qca8k_read operation
    https://git.kernel.org/netdev/net-next/c/028f5f8ef44f
  - [net-next,v6,06/25] net: dsa: qca8k: handle error with qca8k_write operation
    https://git.kernel.org/netdev/net-next/c/d7805757c75c
  - [net-next,v6,07/25] net: dsa: qca8k: handle error with qca8k_rmw operation
    https://git.kernel.org/netdev/net-next/c/aaf421425cbd
  - [net-next,v6,08/25] net: dsa: qca8k: handle error from qca8k_busy_wait
    https://git.kernel.org/netdev/net-next/c/b7c818d19492
  - [net-next,v6,09/25] net: dsa: qca8k: add support for qca8327 switch
    https://git.kernel.org/netdev/net-next/c/6e82a457e062
  - [net-next,v6,10/25] devicetree: net: dsa: qca8k: Document new compatible qca8327
    https://git.kernel.org/netdev/net-next/c/227a9ffc1bc7
  - [net-next,v6,11/25] net: dsa: qca8k: add priority tweak to qca8337 switch
    https://git.kernel.org/netdev/net-next/c/83a3ceb39b24
  - [net-next,v6,12/25] net: dsa: qca8k: limit port5 delay to qca8337
    https://git.kernel.org/netdev/net-next/c/5bf9ff3b9fb5
  - [net-next,v6,13/25] net: dsa: qca8k: add GLOBAL_FC settings needed for qca8327
    https://git.kernel.org/netdev/net-next/c/0fc57e4b5e39
  - [net-next,v6,14/25] net: dsa: qca8k: add support for switch rev
    https://git.kernel.org/netdev/net-next/c/95ffeaf18b3b
  - [net-next,v6,15/25] net: dsa: qca8k: add ethernet-ports fallback to setup_mdio_bus
    https://git.kernel.org/netdev/net-next/c/1ee0591a1093
  - [net-next,v6,16/25] net: dsa: qca8k: make rgmii delay configurable
    https://git.kernel.org/netdev/net-next/c/e4b9977cee15
  - [net-next,v6,17/25] net: dsa: qca8k: clear MASTER_EN after phy read/write
    https://git.kernel.org/netdev/net-next/c/63c33bbfeb68
  - [net-next,v6,18/25] net: dsa: qca8k: dsa: qca8k: protect MASTER busy_wait with mdio mutex
    https://git.kernel.org/netdev/net-next/c/60df02b6ea45
  - [net-next,v6,19/25] net: dsa: qca8k: enlarge mdio delay and timeout
    https://git.kernel.org/netdev/net-next/c/617960d72e93
  - [net-next,v6,20/25] net: dsa: qca8k: add support for internal phy and internal mdio
    https://git.kernel.org/netdev/net-next/c/759bafb8a322
  - [net-next,v6,21/25] devicetree: bindings: dsa: qca8k: Document internal mdio definition
    https://git.kernel.org/netdev/net-next/c/0c994a28e751
  - [net-next,v6,22/25] net: dsa: qca8k: improve internal mdio read/write bus access
    https://git.kernel.org/netdev/net-next/c/b7ebac354d54
  - [net-next,v6,23/25] net: dsa: qca8k: pass switch_revision info to phy dev_flags
    https://git.kernel.org/netdev/net-next/c/a46aec02bc06
  - [net-next,v6,24/25] net: phy: at803x: clean whitespace errors
    https://git.kernel.org/netdev/net-next/c/d0e13fd5626c
  - [net-next,v6,25/25] net: phy: add support for qca8k switch internal PHY in at803x
    https://git.kernel.org/netdev/net-next/c/272833b9b3b3

You are awesome, thank you!
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