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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: FC Transport layer in xen
On 8/26/08, Jun Kamada <kama@xxxxxxxxxxxxxx> wrote: > Hi, > > The ptaches you are using are very old, so I can't remember detail about > them. Only I can say is: > > - "Attach" operation is needed in order to attach specfied HBA to > guest domain. (To do so, some information should be wriiten to > xenstore. However, these patches did not contain tool to do it, > meybe, because the patches were just for RFC.) > - After that operation, you can see SCSI disks under the HBA as > /dev/sd?? on the guest domain. > - If you can successfully see the disks, you can see any information > about FC transport layer at /sys/class/*. after using PCI-PASSTHROUG FC-HBA is visible in the domU. 1. ----------- domU output: root@guest03:~# lspci 01:05.0 Fibre Channel: QLogic Corp. ISP2312-based 2Gb Fibre Channel to PCI-X HBA (rev 02) 2. ------ root@guest03:~# cat /proc/scsi/scsi Attached devices: proc/scsi does not show any output. 3. Dmesg for qlogic while booting domU. qla2xxx 0000:01:05.0: Found an ISP2312, irq 18, iobase 0xc903c000 qla2xxx 0000:01:05.0: Configuring PCI space... qla2xxx 0000:01:05.0: Configure NVRAM parameters... qla2xxx 0000:01:05.0: Verifying loaded RISC code... qla2xxx 0000:01:05.0: Firmware image unavailable. qla2xxx 0000:01:05.0: Firmware images can be retrieved from: ftp://ftp.qlogic.com/outgoing/linux/firmware/. qla2x00_initialize_adapter(): **** FAILED **** qla2xxx 0000:01:05.0: Failed to initialize adapter it is complaining about some Firmware image unavailable 4. -------- /sys/class/fc_host shows nothing root@guest03:/sys/class# ls -l /sys/class/fc_host/ total 0 root@guest03:/sys/class# Now how do i access these scsi device in domU using pci passthrough. Any pointers will be approciated. thanks -tej > > Best regards, > > > On Tue, 26 Aug 2008 09:09:05 +0530 > Tej <bewith.tej@xxxxxxxxx> wrote: > >> On Tue, Aug 26, 2008 at 6:29 AM, Jun Kamada <kama@xxxxxxxxxxxxxx> wrote: >> > Hi Tej-san Mark-san and all, >> > >> > Unfortunately, the pvSCSI driver for Xen 3.3 does not support FC >> > transport layer functionality. I consider that at least new export >> > mode, which exports whole physical SCSI tree under a HBA to guest >> > domain, is needed. (FC transport functionality assumes physical >> > topology, I think.) >> Actually i am still at compilation and building stage of xen 3.3 and >> will get back on this. >> Currently we are using the patches indicated in my previous post. i >> could get the following. >> 1. I am able to access and see all the disk on SAN in dom0 i.e. cat >> /proc/scsi/scsi list all the disk. >> 2. domU could not able to see that FC HBA driver itself, i will try >> with directly assigning the PCI device to domU (HTH) >> Front-back arch. could not be the culprit because this arch. is >> applicable to dom0 also. >> >> so what i am missing? >> >> thanks >> -tej >> > >> > Best regards, >> > >> > >> > On Sun, 24 Aug 2008 09:07:25 +0530 >> > Tej <bewith.tej@xxxxxxxxx> wrote: >> > >> >> On Sun, Aug 24, 2008 at 6:53 AM, Mark Williamson >> >> <mark.williamson@xxxxxxxxxxxx> wrote: >> >> > Actually, the PVSCSI *was* mentioned in the 3.3 release announcement >> >> > so I >> >> > think you should find it there... >> >> >> >> yaa i was looking at 3.3 release notes, but i couldn't relate PVSCSCI >> >> to it >> >> thanks for this pointers >> >> >> >> > >> >> > The header file seems not to have made its way into >> >> > xen/include/public/io/ >> >> > along with the other front/back interface definitions. It is in the >> >> > XenLinux >> >> > copy of that directory, though, which I hadn't checked. >> >> > >> >> > 3.3 is probably worth looking at, then ;-) >> >> > >> >> > Cheers, >> >> > Mark >> >> > >> >> > On Saturday 23 August 2008, Tej wrote: >> >> >> On Thu, Aug 21, 2008 at 5:16 AM, Mark Williamson >> >> >> >> >> >> <mark.williamson@xxxxxxxxxxxx> wrote: >> >> >> > On Wednesday 20 August 2008, Tej wrote: >> >> >> >> Hi All >> >> >> >> >> >> >> >> As i was referring to the following link >> >> >> >> http://lists.xensource.com/archives/html/xen-devel/2007-06/msg00996.html >> >> >> >> >> >> >> >> but i can't see this work in official xen 3.2. >> >> >> >> Is it still in review? >> >> >> > >> >> >> > I think I've seen activing reviewing of this patch set fairly >> >> >> > recently so >> >> >> > presumably it's still being worked on. It doesn't look like it's >> >> >> > made it >> >> >> > into 3.3, so I guess 3.4 would be the soonest we'd expect it... >> >> >> > >> >> >> >> Or can i use the same patches to perform some NPIV task. >> >> >> > >> >> >> > If you're willing to try experimental software you could probably >> >> >> > patch >> >> >> > the code yourself - you might need to be prepared to do some >> >> >> > merging in >> >> >> > places if the Xen tree has diverged from the state that the >> >> >> > patches >> >> >> > expect... >> >> >> > >> >> >> > You should try to make sure you have the most recent patches >> >> >> > possible - >> >> >> > I'm sure they've been updated several times since the mailing list >> >> >> > post >> >> >> > that you found. >> >> >> >> >> >> thanks, i will go ahead with the solution. >> >> >> >> >> >> > Cheers, >> >> >> > Mark >> >> >> > >> >> >> >> thanks in advance for any help >> >> >> >> >> >> >> >> -TEJ >> >> >> > >> >> >> > -- >> >> >> > Push Me Pull You - Distributed SCM tool >> >> >> > (http://www.cl.cam.ac.uk/~maw48/pmpu/) >> >> > >> >> > >> >> > >> >> > -- >> >> > Push Me Pull You - Distributed SCM tool >> >> > (http://www.cl.cam.ac.uk/~maw48/pmpu/) >> >> > >> >> >> >> _______________________________________________ >> >> Xen-devel mailing list >> >> Xen-devel@xxxxxxxxxxxxxxxxxxx >> >> http://lists.xensource.com/xen-devel >> > >> > >> > ----- >> > Jun Kamada >> > >> > >> > > > > ----- > Jun Kamada > > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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