Re: 3.9-rc1: pciehp and eSATA card SiI 3132, no XHCI

[Yijing Wang <wangyijing@huawei.com>]

On 2013/3/12 9:00, Martin Mokrejs wrote:
> Hi,
>   I cold-booted a computer with the card inserted before power-on and collected
> lspci output and express card slot status every second. Then I tried eject and
> hotplug inserts and it appearts the card is not detected, actually maybe pciehp
> is not even suppoosed to work in this case as the slot was occupied during boot.
> But let me come to it later.
> 
> I noted the following on the very first eject of the so far cold-plugged card
> that lspci properly reports PresDet change on the Changed: line. The only time
> I ever saw it. ;-)

Hi Martin,
   PresDet change bit will be cleaned as soon as pciehp driver received the inturrupt from hardware,
So it's difficult to capture the change.

> 
> 
> I re-plugged the card and ejected several times while the while loops
> collecting lspci and slot_status via the setpci shell command harvested
> data. Still, in dmesg there was nothing logged regarding card insert/eject.
> Eventually, I tried rmmod sata_sil24 (did NOT need 'rmmod -f') and that
> did log something new.

No new dmesg info when insert/eject maybe indicate the pciehp driver never received the
interrupt or there is no bit set about Presence Detect Changed here. Or there is debug info
like :
pcie_isr: intr_loc %x at least.

eSATA card SiI 3132, no XHCI, hotplug only got problem with 3.9-rc1? or both at 3.7 3.8?


-- 
Thanks!
Yijing