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    • /[pkg-src]/trunk/kernel26-magellan-server/patches-2.6.24-r5/0301-2.6.24-mptbase-vmware-fix.patch

    Contents of /trunk/kernel26-magellan-server/patches-2.6.24-r5/0301-2.6.24-mptbase-vmware-fix.patch

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    Revision 574 - (show annotations) (download)
    Mon Apr 21 17:56:37 2008 UTC (16 years ago) by niro
    File size: 1699 byte(s) 
    - 2.6.24-magellan-r5: updated to linux-2.6.24.5
    1 From: Petr Vandrovec <vandrove@vc.cvut.cz>
    2 Subject: Installation in VMware-Server fails
    3 References: 263883
    4
    5 Installation in VMware-Server fails as the VMware mpt emulation is
    6 broken; it does not (or wrongly) set the MaxDevices field to '0'.
    7
    8 Signed-off-by: Hannes Reinecke <hare@suse.de>
    9
    10 diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
    11 index 97471af..b3eb367 100644
    12 --- a/drivers/message/fusion/mptbase.c
    13 +++ b/drivers/message/fusion/mptbase.c
    14 @@ -2567,6 +2567,16 @@ GetPortFacts(MPT_ADAPTER *ioc, int portn
    15 pfacts->IOCStatus = le16_to_cpu(pfacts->IOCStatus);
    16 pfacts->IOCLogInfo = le32_to_cpu(pfacts->IOCLogInfo);
    17 pfacts->MaxDevices = le16_to_cpu(pfacts->MaxDevices);
    18 + /*
    19 + * VMware emulation is broken, its PortFact's MaxDevices reports value
    20 + * programmed by IOC Init, so if IOC Init is programmed to 256 (which
    21 + * is 0, as that field is only 8 bit), it reports back 0 in port facts,
    22 + * instead of 256... And unfortunately using 256 triggers another bug
    23 + * in the code (parallel SCSI can have only 16 devices).
    24 + */
    25 + if (pfacts->MaxDevices == 0) {
    26 + pfacts->MaxDevices = 16;
    27 + }
    28 pfacts->PortSCSIID = le16_to_cpu(pfacts->PortSCSIID);
    29 pfacts->ProtocolFlags = le16_to_cpu(pfacts->ProtocolFlags);
    30 pfacts->MaxPostedCmdBuffers = le16_to_cpu(pfacts->MaxPostedCmdBuffers);
    31 @@ -2574,7 +2584,7 @@ GetPortFacts(MPT_ADAPTER *ioc, int portn
    32 pfacts->MaxLanBuckets = le16_to_cpu(pfacts->MaxLanBuckets);
    33
    34 max_id = (ioc->bus_type == SAS) ? pfacts->PortSCSIID :
    35 - pfacts->MaxDevices;
    36 + pfacts->MaxDevices;
    37 ioc->devices_per_bus = (max_id > 255) ? 256 : max_id;
    38 ioc->number_of_buses = (ioc->devices_per_bus < 256) ? 1 : max_id/256;
    39