From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Duffy Date: Tue, 08 Mar 2005 21:45:54 +0000 Subject: RE: pci-e hotplug on Intel SE7520HPAF2 board Message-Id: <1110318354.20262.39.camel@duffman> MIME-Version: 1 Content-Type: multipart/mixed; boundary="=-CrEMfVIGzviqPTwwUkET" List-Id: References: <1110243507.30761.8.camel@duffman> In-Reply-To: <1110243507.30761.8.camel@duffman> To: linux-hotplug@vger.kernel.org --=-CrEMfVIGzviqPTwwUkET Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2005-03-08 at 12:44 -0800, Sy, Dely L wrote: > When using acpiphp driver for hot-plug, one has to use attention button > to initiate power-up of the slot for there is no defined ACPI method > that=20 > the acpiphp driver can call to power-up slot. The driver call _PS0 when >=20 > the user uses CLI (by echo 1 > /sys/pci/bus/slots/X). However, this=20 > method is not defined to do the powering-up sequence for PCI hot-plug. > Maybe a standard method should be defined for such purpose so one can > use > CLI to power-up slot. Would this be implemented in the Linux driver? Or would this need to be defined in the ACPI hotplug spec? > Can you check cat /proc/interrupts to see if interrupts occurred when > you > do hot-plug using pciehp? [root@intlhotp-1 ~]# cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 0: 20167864 20177040 20177525 20239359 IO-APIC-edge timer 1: 26 2 0 8 IO-APIC-edge i8042 4: 2903 827 59 4992 IO-APIC-edge serial 8: 0 0 0 1 IO-APIC-edge rtc 9: 1 4 3 1 IO-APIC-level acpi 12: 0 28 960 82 IO-APIC-edge i8042 14: 1 362803 362757 35 IO-APIC-edge ide0 169: 0 0 0 0 IO-APIC-level uhci_hcd 177: 14278 2334 91 19521 IO-APIC-level ioc0 185: 0 0 0 30 IO-APIC-level ioc1 193: 198396 0 0 1289 IO-APIC-level eth0 209: 0 0 0 0 IO-APIC-level ehci_hcd 217: 779 1 2 2 IO-APIC-level uhci_hcd,= pciehp, pciehp 225: 0 0 0 0 IO-APIC-level uhci_hcd NMI: 0 0 0 0 LOC: 80766982 80766981 80766980 80766979 ERR: 0 MIS: 0 [root@intlhotp-1 ~]# echo 1 > /sys/bus/pci/slots/4/power [root@intlhotp-1 ~]# cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 0: 20187870 20197047 20191221 20255956 IO-APIC-edge timer 1: 26 2 0 8 IO-APIC-edge i8042 4: 2903 827 59 4992 IO-APIC-edge serial 8: 0 0 0 1 IO-APIC-edge rtc 9: 1 5 5 1 IO-APIC-level acpi 12: 0 28 960 82 IO-APIC-edge i8042 14: 1 363073 363117 35 IO-APIC-edge ide0 169: 0 0 0 0 IO-APIC-level uhci_hcd 177: 14310 2354 91 19524 IO-APIC-level ioc0 185: 0 0 0 30 IO-APIC-level ioc1 193: 198724 0 0 1289 IO-APIC-level eth0 209: 0 0 0 0 IO-APIC-level ehci_hcd 217: 779 4 2 2 IO-APIC-level uhci_hcd,= pciehp, pciehp 225: 0 0 0 0 IO-APIC-level uhci_hcd NMI: 0 0 0 0 LOC: 80837292 80837291 80837290 80837289 ERR: 0 MIS: 0 --=-CrEMfVIGzviqPTwwUkET Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) iD8DBQBCLh0SdY502zjzwbwRAqIPAJ0Wa/GWcxxIGRBig3NQQWIciXsNzwCgjCSp 6ZtoYYg2++cEbuK1tNFSPJc= =8QjY -----END PGP SIGNATURE----- --=-CrEMfVIGzviqPTwwUkET-- ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel