On 11/03/2017 04:38 AM, Gavin Guo wrote: > On Sat, Oct 28, 2017 at 11:35 AM, Gavin Guo <gavin....@canonical.com> wrote: >> On Fri, Oct 27, 2017 at 10:53 PM, Hannes Reinecke <h...@suse.de> wrote: >>> On 10/27/2017 04:02 PM, Gavin Guo wrote: >>>> Hi Hannes, >>>> >>>> Thank you for looking into the issue. If there is anything I can help >>>> to test the patch? I appreciate your help. Thank you. >>>> >>> If you had checked linux-scsi you would have found this patch: >>> '[PATCH] mptsas: Fixup device hotplug for VMWare ESXi', which I guess is >>> already scheduled for inclusion in 4.14. >>> Anything else I could help you with? >>> >>> Cheers, >>> >>> Hannes >>> -- >>> Dr. Hannes Reinecke Teamlead Storage & Networking >>> h...@suse.de +49 911 74053 688 >>> SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg >>> GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton >>> HRB 21284 (AG Nürnberg) >> >> Really appreciate your help. I will proceed the testing and keep you posted. > > Hello Hannes, > > I've tested the MPT SAS device controller, the patch works perfectly. > However, the MPT SPI still cannot work with the hotplugging. The lspci > of the LSI SPI device is listed: > > 00:10.0 SCSI storage controller [0100]: LSI Logic / Symbios Logic > 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI [1000:0030] (rev 01) > Subsystem: VMware LSI Logic Parallel SCSI Controller [15ad:1976] > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- > ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >> TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 64 (1500ns min, 63750ns max) > Interrupt: pin A routed to IRQ 17 > Region 0: I/O ports at 1400 [size=256] > Region 1: Memory at feba0000 (64-bit, non-prefetchable) [size=128K] > Region 3: Memory at febc0000 (64-bit, non-prefetchable) [size=128K] > [virtual] Expansion ROM at 40008000 [disabled] [size=16K] > Kernel driver in use: mptspi > > The vendor id/device id[1000:0030] can also be found in the > mptspi_pci_table(drivers/message/fusion/mptspi.c). > > PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030 > > If there is anything I missed in the testing? I appreciate your help. > Don't. Ever. Try.
SCSI Parallel hotplugging is so loosely defined that essentially every vendor can (and did!) implement their own thing, and _still_ be spec compliant. Plus there is no guarantee that we even see events when a hot-add occurs. So any thingie we put in here has a really high chance of breaking other installations. I wouldn't even bother to attempt this; it's virtualized anyway so you can as well switch to the SAS emulation here. Or use a different SCSI parallel emulation like the Symbios/LSI 53c800 one. Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking h...@suse.de +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
