[BUG] FL1009: xHCI host not responding to stop endpoint command.

Hi Willy,

Willy Tarreau [off-list ref] writes:

quoted

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I don't know if it should have included FL1009, it was just a guess,
based on the fact that the 0x1000 and 0x1400 devices did need MSI
disabled.  I can attempt to ask the Fresco Logic folks I know, but I'm
not sure if/when I'll get a response back.

That still doesn't necessarily rule out MSI issues in the Marvell PCI
host controller code.  Can you attach another PCI device with MSI
support under the host and see if it works?

The various Armada-based devices I have are NAS which do not have PCIe
slots to plug additional devices (everything is soldered). I don't know
which device Thomas used for its tests. Just in case, I also added Willy
in CC: who have various boards and may also have done more test with
additional PCIe devices and CONFIG_PCI_MSI enabled on 3.13 kernel.

I've been running an intel i350 dual-port NIC (igb driver) supporting
MSI on the mirabox, and it used to work in 3.10+many of the patches
coming from the Free-electrons team. Some recent changes to the PCI
code introduced a regression preventing this driver from correctly
registering an MSI interrupt, and I did not have enough time to
investigate it deep enough to fix it. That said, I know how to hack
it to work again, so if it can be of any use, I can run a test on
the mirabox (armada370) and on the XPGP board (armadaXP).

Thanks for the proposal, Willy. I guess Thomas can tell better than me
what kind of tests would help ruling out a problem in MSI support and
put the blame on FL chip ;-) Thomas, if you need me to test something on
some of my platforms, do not hesitate.

Cheers,

a+