Messages in this thread | | | Date | Thu, 10 Jul 2014 00:09:54 +0200 | From | Francois Romieu <> | Subject | Re: [PATCH net v2] r8169: disable L23 |
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Hayes Wang <hayeswang@realtek.com> : > For RTL8411, RTL8111G, RTL8402, RTL8105, and RTL8106, disable the feature > of entering the L2/L3 link state of the PCIe. When the nic starts the process > of entering the L2/L3 link state and the PCI reset occurs before the work > is finished, the work would be queued and continue after the next the PCI > reset occurs. This causes the device stays in L2/L3 link state, and the system > couldn't find the device. > > Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Thanks, the explanation of the race between software induced PCI reset and transition to PCIe L2/L3 should be clear enough. PM scared me, yet it got worse.
Davem, would you mind to s/rtl_l23_enable/rtl_pcie_state_l2l3_enable/ or do you want a new patch for it ?
-- Ueimor
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