Hi all,
I would like to know if you have already seen this behavior :
Without this patch
https://patchwork.ozlabs.org/project/netdev/patch/[email protected]/,
during suspend/resume sequence on STM32MP15 (stmmac driver):
[ 69.184175] dwc2 49000000.usb-otg: suspending usb gadget configfs-gadget
[ 69.358831] stm32-dwmac 5800a000.ethernet eth0: Link is Down
[ 69.370345] Disabling non-boot CPUs ...
[ 69.371309] CPU1 killed.
[ 69.379201] Enabling non-boot CPUs ...
[ 69.382421] CPU1 is up
[ 69.402201] dwmac4: Master AXI performs any burst length
[ 69.402235] stm32-dwmac 5800a000.ethernet eth0: No Safety Features
support found
[ 69.402306] stm32-dwmac 5800a000.ethernet eth0: configuring for
phy/rgmii-id link mode
[ 69.405656] usb usb2: root hub lost power or was reset
[ 69.805154] usb 2-1: reset high-speed USB device number 2 using
ehci-platform
[ 69.883813] dwc2 49000000.usb-otg: resuming usb gadget configfs-gadget
[ 70.189888] OOM killer enabled.
[ 70.192983] Restarting tasks ... done.
[ 70.215832] PM: suspend exit
root@stm32mp1-disco:~# [ 75.608337] stm32-dwmac 5800a000.ethernet
eth0: Link is Up - 1Gbps/Full - flow control rx/tx
And the same soft + patch “net: stmmac: Delete txtimer in suspend()" :
[ 181.931229] dwc2 49000000.usb-otg: suspending usb gadget configfs-gadget
[ 182.110153] stm32-dwmac 5800a000.ethernet eth0: Link is Down
[ 182.112333] stm32-dwmac 5800a000.ethernet eth0: Link is Up -
1Gbps/Full - flow control rx/tx
[ 182.112420] stm32-dwmac 5800a000.ethernet eth0: Link is Down
[ 182.120247] Disabling non-boot CPUs ...
[ 182.121186] CPU1 killed.
[ 182.129095] Enabling non-boot CPUs ...
[ 182.132309] CPU1 is up
[ 182.151590] dwmac4: Master AXI performs any burst length
[ 182.151626] stm32-dwmac 5800a000.ethernet eth0: No Safety Features
support found
[ 182.151695] stm32-dwmac 5800a000.ethernet eth0: configuring for
phy/rgmii-id link mode
[ 182.154930] usb usb2: root hub lost power or was reset
[ 182.555119] usb 2-1: reset high-speed USB device number 2 using
ehci-platform
[ 182.633763] dwc2 49000000.usb-otg: resuming usb gadget configfs-gadget
[ 182.953899] OOM killer enabled.
[ 182.957008] Restarting tasks ... done.
[ 182.996662] PM: suspend exit
root@stm32mp1-disco:~# [ 188.408297] stm32-dwmac 5800a000.ethernet
eth0: Link is Up - 1Gbps/Full - flow control rx/tx
I would like to understand why there is more :
[ 182.110153] stm32-dwmac 5800a000.ethernet eth0: Link is Down
[ 182.112333] stm32-dwmac 5800a000.ethernet eth0: Link is Up -
1Gbps/Full - flow control rx/tx
[ 182.112420] stm32-dwmac 5800a000.ethernet eth0: Link is Down
Any idea ?
Regards.
Christophe.
